Water heaters are produced for a rated voltage of 0.4; 6 and 10 kV and a maximum operating pressure of 0.6 MPa for low voltage and 1 ... 1.2 MPa for high voltage.
Water heaters work in closed systems heating or hot water supply. To obtain heated drinking water, the primary closed circuit of the heat exchanger (Fig. 2.6) or the heat accumulator boiler (see Fig. 2.24) is included in the closed heat supply circuit of the power plant, and hot water is taken from the secondary "open" circuit. Typically, the water temperature at the outlet of the electrode heater T 2 = 95 ° C. The calculated water temperature at the inlet to the electrode water heater is taken
T 1= 70 °С.
Types and basic technical data of the most common water heaters are shown in table 2.2.
Figure 2.5, d shows the device of the KEV electrode water heater with plate electrodes connected according to the scheme in Figure 2.5, V.
The water heater has a cylindrical body 1 with supports 7. At the bottom 2 an electrode system in the form of a package of plates is installed on the studs of current leads 3 4. To ensure current symmetry during the operation of the electrodes, protective dielectric screens 5 are used. The heater power is controlled by changing the active height of the electrodes, for which movable dielectric screens 6 are used, which are pushed into the interelectrode space using a manual drive.
The number of working electrodes depends on the heater power and is equal to 3n + 1, where n is an integer. The volume of water enclosed between two adjacent plates creates a working resistance under line voltage. With four plates (n = 1) there are three such resistances and they form a “triangle” switching circuit, with n = 2 - "double triangle" scheme. In the absence of electrical insulation on the inner surface of the heater housing, due to the resistance of current leakage to the housing, an additional “star” switching circuit is created, which can develop a power equal to 0.15 ... 0.2 of the rated power of the heater.
High-voltage electrode heaters KEV for a voltage of 6 and 10 kV, with a power of 2500, 6000 and 10,000 kW, with a maximum water temperature of 130 and 150 ° C and a pressure of up to 1.2 MPa, usually have cylindrical electrode systems consisting of three or six single-phase groups. The groups are formed by coaxially located phase and zero electrodes, between which there are movable dielectric cylinders for power control.
Rice. 2.6. Scheme of installation of water heaters in hot water supply and heating systems:
1 - control panel; 2 - water heater; 3- expansion tank; 4 - high-speed water heater for hot water supply; 5 - pipelines of the heating system of the room; I - electrical input; II - EWH connection cable; III - connection with overheating sensor TR-200
Electrode water heater EPZ-100.
Figure 2.7 shows the electrode water heater EPZ-100. It is a cylindrical steel body 3, covered with thermal insulation 2 and a metal casing 7. Two branch pipes are welded into the body for water inlet and outlet. 9 and 7. There is a drain pipe in the bottom 10, in the upper part - screw 5 of the air outlet device when filling the water heater with water. The upper branch pipe has two sockets for the installation of a regulating 8 and emergency 6 hot water temperature sensors connected by a capillary tube to manometric thermometers of the TPG-SK type.
An electrode system is installed in the body of the water heater, consisting of three electrode groups. Each has three coaxially arranged cylindrical electrodes: two of them are zero electrodes, one is phase. In the gaps between the electrodes, two insulating cylindrical screens made of fiberglass are introduced, fixed on a common traverse. When lowering the screens lead screw flywheel 4 the active area of the electrodes decreases, and when raised, it increases, which leads to a decrease or increase in the power of the water heater.
Rated power of the heater -100kW; rated linear voltage - 380 V; scheme of working resistance of water - "star"; rated current -152A; the maximum allowable water temperature in the boiler is 130 °C; nominal electrical resistivity of water at 20 °C - 30 Ohm m; water heater capacity - 28 l; Efficiency - 0.99.
Rice. 2.7. Electrode water heater EPZ-100:
A - general form; b - single phase diagram;
1 - casing; 2 - thermal insulation; 3 - body; 4 - flywheel of the power regulator; 5 - screw for air release; 6.8 - emergency and regulating hot water temperature sensors; 7.9 - outlet and inlet pipes; 10 - pipe for draining water; 11 - phase electrode; 12 - insulating screens; 13 - zero electrodes
The main technical data of the water heater are shown in Table 2.2.
Wiring diagram water heater EPZ-100 (Fig. 2.8) provides for both automatic and manual control modes.
With the help of the water heater circuit, control of the magnitude of the linear current is provided; emergency power off in case of short circuits, when the set outlet water temperature rises and when a current equal to 25% of the rated line current appears in the neutral wire.
To prevent the operation of the water heater without circulation of heated water, an auxiliary contact is provided in the control circuit KM2, which closes only after the pump is turned on. Thus, when the water heater is connected to the network, the drive of the circulation pump is first turned on, and then the circuit breaker QS. Switch SA set to the position corresponding to the selected mode of operation.
Rice. 2.8. Schematic diagram of the water heater EPZ-100
In manual mode SA put in the "hand" position. The relay winding receives power KL2, which by its contact KL2:1 closes the contactor circuit KM. The contactor is activated and excludes the water heater from the network. To turn off the water heater SA put in the "O" position.
For operation in automatic mode, the minimum setting (contact SK1: 2) and maximum setting (contact SK1:7) water temperature control sensor SK1 set to a temperature that differs by 1 ... 2 ° C from the nominal, respectively, in the lower and upper sides (for example, 94 and 96 ° C). Switch SA put in the "Auto" position.
The electrical circuit provides protection of the water heater from emergency conditions. So, if at the maximum setting of the temperature sensor SK1 for some reason the relay KL1 does not work, then the emergency temperature sensor comes into action SK2, whose setting is 1...2 °C higher than the maximum setting SK1. Contact SK2 closes, and as a result of the sequential switching on and off of a number of contacts, the contactor winding KM loses power and the water heater is disconnected from the mains.
The circuit also provides protection in case of an unacceptable asymmetry of supply voltages or phase failure, when a potential of a dangerous value may appear on the heater body. As a result, a current appears in the neutral wire, and if its value is more than 25% of the rated current of the heater, then the current relay is activated. KA and turns off the power. To reconnect the water heater to the network, you must also install a switch SA first to the "O" position, and then to one of the operating modes.
company"
KEV boilers are not subject to registration with Rostekhnadzor.
2. Specifications.
Options | KEV-400/0.4 | KEV-350/0.4 | KEV-300/0.4 | KEV-250/0.4 | KEV-200/0.4 | KEV-150/0.4 | KEV-100/0.4 |
Max power, kW | |||||||
Heat output, Gcal/hour | |||||||
Rated current, A | |||||||
Design pressure | 6 kg/cm2 (0.6 MPa) |
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Mains voltage of three-phase current with a frequency of 50 Hz + 10%; -15%, V | |||||||
Power regulation limits | |||||||
Boiler block dimensions, mm | |||||||
Control cabinet dimensions, mm | |||||||
Mass of the boiler block, kg | |||||||
Control cabinet weight, kg | |||||||
Pump weight, kg | |||||||
Set price with VAT, rub. | 38 0 0 00 | 335 000 | 295 000 | ||||
3. Composition and completeness.
Electric boiler unit - 1 pc.
Control cabinet - 1 pc.
Spare parts for spare parts and accessories (insulator, ear, electrode, stud, bushing, spring, nut - 3 pcs each).
Circulation pump - 1 pc. - by separate order, not included in the price of the kit.
4. Device and principle of operation.
The principle of operation of the electric boiler is to directly heat the water electric shock, which passes directly through the volume of water in the boiler.
Structurally, the electric boiler is a vessel cylindrical shape, which is a hot water chamber. Inside the vessel there is a block of phase electrodes. A three-phase voltage is applied to the electrodes along the current-carrying studs through the bushings electrical network 380 V 50 Hz.
In the control cabinet there is an adjusting device Termodat-14. With the help of this device, the power is regulated from 1 to 100%, the device works according to the pulse number method.
Max water heating temperature in the boiler block 115 degrees. C, the adjustment electronic device is located in the control cabinet.
The electric boiler is controlled from a control cabinet, in which a circuit breaker, a contactor and an automation circuit are mounted. In the power circuit, there are devices for monitoring the current load and voltage, as well as protection devices that act to turn off the electric boiler in case of overloads and short circuits.
The automation circuit allows you to maintain a constant water temperature in the hot water chamber. The automation circuit provides protection that acts to turn off the electric boiler when the boiler body is heated to 45 degrees. WITH.
5. Preparation for work.
Electric boilers must be installed in a separate room. In the same room, control cabinets and auxiliary equipment of electric boilers are installed.
Installation of electric boilers vertical floor without fastening.
After installation, the electric boiler, control cabinet and pump must be grounded.
Due to the fact that electric boilers are installed at facilities connected to city water supply networks, there are no additional requirements for the quality of feed water.
6. Order of work.
When connected to the network, the water in the electric boiler is heated up to set temperature. When the set temperature is reached, the heating is automatically turned off and the pump is turned on for pumping water. When the water temperature drops to a predetermined limit, the pump is turned off and the heating is turned on.
Thus, there is an automatic control of the temperature of the coolant within the specified limits.
The heating is controlled by a temperature controller, the pump is in continuous operation.
The power regulator sets the power consumption so that the room temperature meets sanitary standards.
To exit to required power salt can be added to the coolant (for example, table salt).
The electrical protection of the circuit is carried out by automatic switches, a thermal relay.
Figure 1 - Electric hot water boiler KEV
company"
Russia Altai region 659321 Biysk /6
Altai Branch No. 000 of Sberbank of Russia, Barnaul
Tel., Fax (38 -983 Email:promcompany@*****
http://www.prom22.en
Boilers electric steam KEP electrode
The boilers are designed for centralized supply of light, food, medical, agricultural, woodworking, construction and other industries with process steam.
Full automation of work processes guarantees reliable and safe work electric boilers. The automatic blowdown ensures a constant salt content in the operating boiler, which contributes to obtaining steam of stable quality.
Options | KEP-350 | KEP-300 | KEP-250 | KEP-200 | KEP-160 | KEP-100 |
Productivity, kg/h | ||||||
Installed power, kW | ||||||
Steam pressure | 4…6 kg/cm2 (0.4…0.6 MPa) |
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Maximum steam temperature | 160 °С |
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Power regulation | 100-25% of Rnomin. |
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Mains voltage of three-phase current with a frequency of 50 Hz, V, + 10%; -15% | ||||||
Boiler block dimensions, mm | ||||||
Control cabinet dimensions, mm | ||||||
Water tank dimensions, mm | ||||||
Mass of the boiler block, kg | ||||||
Control cabinet weight, kg | ||||||
Water tank weight, kg | ||||||
Pedrollo pump weight, kg | ||||||
Kit price, rub. | 381 140 | |||||
Composition and completeness.
Electric boiler unit - 1 pc.
Control cabinet - 1 pc.
Water tank - 1 pc.
Modular electric boiler rooms are made of insulated transportable block-modules, which contain: electrode hot water / steam boilers, an electrical panel with devices and control, control, automation and signaling devices, pumps with a piping system and fittings.
Complete set: a circulation pump, a membrane expansion tank, shut-off and control and measuring equipment, a safety group for the heating system, all this is mounted on an electric boiler room.
Automatic mode of operation without constant attendants.
The design of the electric boiler room provides complete protection and safety.
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Type of boiler room
Number of boilers
boiler power,
kW
Total power, kW
Heated room volume, m3
Heat output, Gcal/h
dimensions(LxSxH), mm
project
project
project
project
project
project
project
project
Specified power 2400 kW is not the maximum, it is possible to manufacture a boiler room of greater power. The completeness of each electric boiler is developed according to the technical specifications of the customer in accordance with the required power.
The composition of the electric boiler, depending on the purpose and requirements of the customer, includes:
· Block of boilers;
Block of network pumps;
Block of make-up pumps;
· Block of automatic control of pressure, temperature of the heat carrier;
· Introductory switchboard with a voltage of 0.4 kV.
Electric boiler rooms modular automated
All equipment of the electric boiler house is mounted in a transportable building module, the design of which provides for the possibility of transporting the boiler plant to the place of operation at the stage of full factory readiness for operation.
The interior is divided into three compartments:
a room for electrical power equipment with technical openings in the floor for input power cables on the input distribution control panel (the brand, cross section and length of the supply cable is determined by the design organization on site), top entry of power cables is possible.
boiler room, which houses electrode boilers, fenced off by a solid mesh wall from the side of the shield and mesh wall with doorway from the accessory department.
· Auxiliary equipment compartment, which includes: network pumps, make-up pumps, automatic complexonate dosing unit, heat exchangers, automatic control and alarm cabinet.
In both end walls The module provides swing doors.
The delivery set for hot water supply includes a tank-accumulator of chemically purified water in isolation, which is mounted directly next to the module. The volume of the tank is determined by the project.
The operation and control of boiler units is carried out by a set of automatic control equipment based on programmable logic controllers, which provide for automatic maintenance of the temperature of network water, hot water supply within the specified limits, as well as the inclusion of blowdown of boiler units, automatic start reserve of pumping groups.
The electric boiler room does not require the constant presence of personnel, it is possible remote control and control from the dispatcher's computerized workstation.
Scope of work at the installation site:
installation of the module in the design position.
· connection of power cables with a voltage of 0.4 kV.
connection of feed water.
Discharge of purge water to the sewer.
connection of pipelines of the heating network.
connection to the ground loop.
· Carrying out of adjustment works.
installation and connection of the storage tank.
Hot water electric boiler KEV applied in autonomous systems heating with forced circulation and hot water systems.
KEV electric boilers are not subject to registration with Rostekhnadzor.
Maximum power - 100 kW
Heat output - 0.086 Gcal/hour
Smooth electronic power control from 1 to 100%
Pressure - working 6 kg/cm2 (0.6 MPa), calculated 10 kg/cm2 (1 MPa)
Heated room volume 3 500 m3
The principle of operation of the electric boiler is the direct heating of water by electric current.
With the help of automatic control of this boiler, it is possible to adjust the temperature and power depending on the outdoor temperature according to a given heating schedule, i.e. it produces the so-called "weather regulation".
Structurally, the electric boiler is a cylindrical vessel, which is a hot water chamber. Inside the vessel there is a block of phase electrodes. The voltage of a three-phase electrical network of 380 V 50 Hz is supplied to the electrodes through current-carrying pins.
The automation scheme allows you to maintain a constant water temperature.
Download technical description and price: electric hot water boilers
As practice shows, heating system is becoming increasingly popular in Russia. Every year, the owners of both residential and non-residential real estate choose just such a method of heat supply and are completely satisfied, because independence in heating has a number of undeniable advantages. Practicality, rationalism and profit - this is what distinguishes autonomous heating from any other. As a rule, the larger the room that needs heating, the higher the requirements for heating technology.
Industrial heating electric boilers are boilers with a power of 100 kW. It is easy to imagine the area of the room where such a boiler should be used: any building from 1000 sq. m. Boilers for large facilities, as a rule, have large sizes and require a separate room for their use - a boiler room. Large-scale heating requires heating equipment that can be easily controlled and reliable. Following these requirements, industrial heating boilers are extremely reliable and durable units that can be used in almost all operating conditions.
Electric industrial boilers are reliable automated installations, the need for maintenance of which is reduced to a minimum. Electric boilers popular due to the resource - electricity, which is present almost everywhere. There is no need not only to organize separate rooms for storing fuel, but also to bring additional communication lines. Electric industrial boilers have proven themselves as reliable technology for long term use. A small and, perhaps, the only tangible disadvantage of such boilers is their "fuel cost". Electricity attracts with its versatility, however, it will require financial investments much higher than average. When choosing an industrial electric boiler, its main advantage is power. Reliability and long-term productive operation of such equipment, as a rule, "comes in a set" with the main equipment.
The ideology of mini-power engineers: According to one of the radical versions, district heating there is no place in a market economy, since the system is initially inefficient. Its main essence is that in the old days, almost the entire multi-apartment housing stock was state-owned, in addition, gigantomania dominated the country during construction industrial facilities. In the then economic conditions, the main owner of housing - the state, was in some way profitable to build centralized systems. Natural and energy resources cost a penny, society could afford to neglect the loss of cheap thermal energy.
Today economic situation changed, and the main volumes of housing again began to belong to private owners, and the heat supply system remained the same, which is very inefficient.
Distinctive features of electric mini-boilers.
Full completeness - the buyer does not have to deal with the problem of searching, purchasing and installing a circulation pump, membrane expansion tank, shut-off and control and measuring equipment and a security group for the heating system, all of this has already been installed in the electric boiler room.
- Automatic mode of operation without constant attendants.
- Attractive appearance, compact dimensions. Block design of electric boiler elements in one housing in combination with original design allows you to install the device directly in the living room
- High reliability and durability of the device due to the use of heating elements made of of stainless steel.
- Step power control.
- Possibility of smooth regulation of the coolant temperature from 35 to 85°C within each power level.
- The visibility and information content of the light indication of the front control panel, as well as the possibility of visual observation of the thermomanometer readings, allow you to easily and clearly control all operating modes of the electric boiler, including emergency ones.
- Possibility of connection of the remote sensor of regulation of temperature of air in the room or other program device (timer).
- A well-thought-out and proven safety system of the electric boiler provides complete protection, safety and signaling when the parameters go out of order (automatic switches for protecting against overload and short circuit currents, each power level and control circuits, a sensor-relay for monitoring, the presence of a coolant to prevent the inclusion of an electric boiler, without filling water, an additional emergency overheating thermal switch to protect against exceeding the temperature of the coolant over 95 ° C, a safety valve to protect the electric boiler and heating system from damage by excess emergency pressure).
ELECTRIC MINI-BOILER wall "Household".
The electric boiler house consists from an electric boiler with stainless steel heating elements installed on it, a circulation pump, shut-off and control valves and measuring equipment (thermomanometer), connected by a pipeline system, a control unit and a safety group mounted in a single metal case.
Controls with light signaling are displayed on the front panel.
Safety system (circuit breaker protection against overload and short circuit currents, a sensor-relay for monitoring the presence of a coolant, a thermal switch to protect against exceeding the temperature of the coolant over 95 ° C, a safety valve for relieving pressure in emergency mode) provides complete protection and safety.
Emergency sound alarm in the absence of coolant and pressure in the heating system.
attractive appearance, modern design and silent operation provide the possibility of installation in a residential area.
The operation of the electric boiler room takes place in automatic mode with the maintenance of the required temperature and pressure in the heating system with the possibility of smooth regulation of the coolant temperature from 35 ° to 85 ° C within each power level.
The scope of delivery includes a mechanical filter. At the request of the customer, they are equipped with an expansion tank and two ball valves for self-installation.
Electric mini-boilers for a rated voltage of 220V (wall-mounted).
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Power, |
Supply voltage, |
Dimensions, |
Quantity |
nozzle diameter, |
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EKT-2,5M1 |
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EKT-3,15M1 |
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EKT-4,8M1 |
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EKT-7,5M1 |
Electric mini-boilers for a rated voltage of 380V (wall-mounted).
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Power, |
Supply voltage, |
Heated area with h ceilings 2.7m, m 2 |
Dimensions, |
Number of heating elements / boiler, |
nozzle diameter, |
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EKT-4,8M |
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EKT-7,5M |
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EKT-9,5M |
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EKT-12M |
Electric boilers for a rated voltage of 380V (wall-mounted) with stepped power control.
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Power, |
Supply voltage, |
Heated area with h ceilings 2.7m, m2 |
Dimensions, |
Number of heating elements / boiler, |
nozzle diameter, |
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EKT-15MR |
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EKT-19MR |
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EKT-21,5MR |
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EKT-24MR |
ELECTRIC MINIKOTEL floor "Industrial".
The electric boiler room is a monoblock completely ready for operation.
It consists of an electric boiler with stainless steel heating elements installed on it, circulation pumps (main and backup), a membrane expansion tank, a mechanical mud filter, shut-off and control valves (ball valves, automatic air vent, check valve), measuring equipment (thermometer, thermomanometer) connected by a system of pipelines, a control unit and a safety group.
The operation of the electric boiler room occurs in automatic mode without constant maintenance of personnel.
The control unit of the electric boiler provides automatic control according to the temperature of the heat carrier, step power control, smooth control of the temperature of the heat carrier from 35°C to 85°C in the heating system. The controls are displayed on the front panel.
The design of the electric boiler room provides complete protection and safety (automatic switch for protection against overload currents and short circuits of each power stage, sensor-relay for monitoring the presence of a coolant, a thermal switch to protect against exceeding the temperature of the coolant over 95 ° C, a safety valve for pressure relief in emergency mode).
Electric floor-standing mini-boilers with stepped power control (two-module).
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Power, |
Supply voltage, |
Heated area with h ceilings 2.7m, m 2 |
Dimensions, |
Number of steps/regulation |
nozzle diameter, |
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EKT-30MR |
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EKT-36MR |
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EKT-42MR |
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EKT-45MR |
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EKT-48MR |
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EKT-54MR |
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EKT-60MR |
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EKT-75MR |
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EKT-90MR |
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EKT-105MR |
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EKT-120MR |
Electric mini-boiler rooms floor with step power regulation (three-module).
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Power, |
Supply voltage, |
Heated area with h ceilings 2.7m, m 2 |
Dimensions, |
Number of steps/regulation |
nozzle diameter, |
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EKT-135MR |
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EKT-150MR |
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EKT-180MR |
30-60-90-150-180 |
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EKT-210MR |
30-90-135-180-210 |
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EKT-240MR |
30-90-135-180-210-240 |
Electric hot water boilers of the KEV type with a capacity of 40-1000 kW.
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Electric heating boilers KEV-0.4 are designed to produce hot water due to the heat generated by electric current when it passes directly through the water. They are used for heating and hot water supply of residential and industrial premises both closed and open heating systems. In addition, electric heating boilers KEV-0.4 can be used at construction sites, industrial and agricultural enterprises, where hot water with temperatures up to 95-130 °C for technological processes. The most promising is the use of electric heating boilers in heating systems with storage devices.
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Technical characteristics of the electric heating boiler KEV-0.4:
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KEV-40 /0.4 |
KEV-63 /0.4 |
KEV-100 /0.4 |
KEV-160 /0.4 |
KEV-250 /0.4 |
KEV-400 /0.4 |
KEV-1000 /0.4 |
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Rated power, kW |
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Mains voltage, kV |
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Rated current, A |
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Water consumption through the boiler, m 3 / hour |
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Inlet water temperature, o С |
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Poppy. water heating temperature, o C |
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Power control range in % of nominal |
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Specific electrical resistance of water at 20 ° C, Ohm m |
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Boiler capacity, m 3 |
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Star rating, no more |
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Design pressure in the boiler, MPa |
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The volume of the heated room, m 3 |
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Heat output, Gcal/hour |
The table is calculated for the initial data: 1kW/hour=0.00086 Gcal/hour.
The minimum winter temperature is -40°C.
Estimated room temperature +18°С.
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Weight, kg |
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KEV 40/0.4-E |
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KEV 63/0.4-E |
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KEV 100/0.4-E |
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KEV 160/0.4-E |
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KEV 250/0.4-E |
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KEV 400/0.4-E |
 EPZ-25I2M |
 EPZ-100I2 |
 EPZ-250I2 |
EPZ type water heaters are in demand and credibility among consumers due to reliability, long term service, easy operation and maintenance.
- EPZ electric boilers can be used in heating systems both as autonomous sources heat supply of buildings and premises, and as reserve or additional ones, when they are included in the same water circuit with other heat generators. Complete with boilers, they can be used for hot water supply.
- All types of water heaters are equipped with control panels, which automatically control the operation and maintain temperature regime water heater.
- In the electrode boiler Electric Energy directly converted into heat when current passes through water, so the efficiency of water heaters is 99%.
- In the absence of water in the body of the water heater, the boiler simply does not work, unlike heating element boilers, which guarantees their fire and emergency safety.
- For heating small rooms - country houses, garages, trade stalls, change houses and gatehouses, are produced small-sized water heaters EPZ-3I1 and EPZ-6I1. In cases made of heat-resistant polypropylene, there are phase and zero electrodes, between which a power regulator is installed. On the cover of the housing there is a rotary knob for the power regulator. Water heaters EPZ-3I1 and EPZ-6I1 are used in heating systems with natural circulation, therefore, they do not require the installation of a circulation pump. They are equipped with shields (thermostats) for automatic control of water temperature in the heating system.
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EPZ-3I1 |
EPZ-6I1 |
EPZ-25I2M |
PZ-100I2 |
EPZ-250I2 |
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Maximum power, kW |
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Heated volume, m3 |
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Mains voltage, volt |
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Maximum current, ampere |
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Max. water temperature, ºС |
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Max. slave. pressure, MPa |
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Power range |
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Height x diameter, mm |
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Weight without water, kg |
Water heater EPZ-25I2M- the latest model of an electric boiler with a capacity of 25 kW. It is designed for heating cottages, offices, shops, other residential and industrial premises, up to 250 square meters. It can work in systems with natural and forced circulation of water. The EPZ-25I2M water heater is equipped with a thermostat to maintain the required temperature. The power of the boiler is regulated by a rotary knob.
For heating industrial premises, barracks, shops, farms, multi-apartment buildings and mini-boiler rooms are produced water heaters EPZ-100I2. They are used in forced circulation heating systems for space heating up to 1200 square meters. Featured circulation pumps- K8/18. Boilers EPZ-100I2 are equipped with thermostat ShCHUA-2M. The set water temperature in the heating system is automatically maintained. When using a thermostat, the operation of the water heater is controlled through the starter of the circulation pump.
Water heaters EPZ-250I2 designed for heating residential and industrial premises for various purposes with a total area of up to 2500 square meters and for completing mobile electrical and universal thermal container modules. Recommended pumps - K8/18. It is completed with a thermostat for automatic temperature control and control of the boiler operation mode. The thermostat is equipped with two temperature sensors (operating and emergency), and provides regulation of the set water temperature and protection against short circuits, phase imbalance and overloads. The water heater EPZ-250I2 is also equipped with a branch pipe with safety valve. Power adjustment is made by a rotary knob fixed on the axis on the boiler cover.
Water heaters of the "EPZ" type are tested and certified, are fireproof, and are not subject to state technical supervision.
All types of EPZ water heaters are much cheaper than similar boilers.
They have smaller dimensions and weight.
This and information belongs
enterprise use by third parties
with the owner!
As a specialized manufacturing and supply company boiler and boiler-auxiliary equipment, our company offers to manufacture and supply a reliable, efficient electric hot water installation, which includes an electrode hot water boilerKEV-100/04 and power shield with integrated automated system load control (instrumentation) . Series boilersKEV easy to operate and repair, efficient in operation, as they are a direct-acting heater with an efficiency factor of 98%, unlike induction hot water boilers where losses idling and transformation can reach up to - 20% of the given denomination. Electric hot water boilers seriesKEV are not subject to registration with the bodies of Rostekhnadzor, which gives a great advantage in the use of the equipment we offer.
We also offer a range of works in the following areas:
D to purchase hot water electric boilerKEV-100/0.4 from You will need to send to our address application for purchased equipment, whererequired to specify:
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Multichannel: 8(3854) 30- 69- 90
Phone/fax: 8 ( 3854) 44- 86- 49
e-mail : [email protected]
Declaration (EAC)
. Completeness of delivery KEV-100/0.4 :
. Photo, production site:
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. Machining on a lathe STK36G (CNC):
. Application area:
Electrode hot water electric boiler KEV-100/0.4 are designed for use in heating systems with forced circulation and coolant temperature up to 95 °С and hot water supply (DHW 65-75°C ) in residential and industrial premises.
. Device and principle of operation:
The principle of operation of the hot water electrode electric boiler KEV with a power of 100 kW and a voltage of 380 volts is to directly heat the water with an electric current that passes directly through the volume of water in the boiler. The frequency of operation of the KEV-100/0.4kV electric boiler depends on the setting of the minimum and maximum limits of the set temperature (set parameter for the temperature of the heat carrier, example: on 70 °C - off 95 °C, interval between on and off 25 °C ).
Structurally, the KEV 100 kW industrial hot water electric boiler is a cylindrical vessel with a flat welded bottom and a flanged top cover being a hot water chamber with inlet and outlet welded bends with flange mounting, for connecting the KEV-100 / 04 electric boiler with a power of 100 kW voltage 380 V to the heating network or DHW system. Inside the vessel there is a block of phase electrodes. On current-carrying studs through bushings (ceramics) to the electrodes is supplied three-phase voltage electrical network 380 V 50 Hz.
In the power control cabinetindustrial hot water electric boiler KEV-100 /0.4a control device BOOST-2 (control unit for thyristors triacs) was installed, working according to the number-pulse method, which allows you to adjust the hot water electric boiler KEV 100 kW according to the specified load from 30 to 100%. Permissible temperature coolant (water) at the outlet of the KEV 100 electric boiler up to 115 °C.
The power circuit is provided with devices for visual control of current load (Ampirmeter) and temperature (2TRM1). The operation of the protection of the KEV 100 kW electric boiler for shutdown in case of current overloads and short circuits, as well as when the specified temperature is exceeded. The automated power control cabinet for electric hot water boiler KEV-100 allows you to maintain the desired water temperature in the heat supply system, using heat exchange equipment in the DHW system.
"Weather Regulation"allows you to automate the control of a hot water electric boiler KEV with a power of 100 kW, a voltage of 380 volts, and in a heated room by setting the desired temperature, thereby providing an economical mode of operation of an electric boiler KEV 100 with a power of 100 kW, a voltage of 380 V, in a closed-type heating system.
According to the protections, in the power control cabinet of the electric hot water boiler KEV with a power of 100 kW, voltage of 380 volts, light and sound alarms are provided (the presence of voltage, turning on the heating, contactor failure, turning on the pump, accidents (overcurrent and overheating of the boiler).
. Specifications:
| Options | KEV-100/0.4 |
|
Maximum power, kW |
100 |
| Heat output, Gcal/hour | 0,087 |
|
The area of the heated room, m 2 at a height of 3m |
870-950 |
| Rated current, A | 150 |
| Working pressure, kgf / cm 2 (MPa) | 0,6 (0,6) |
| Three-phase mains voltage (50 Hz, +10%, -15%) | 380 |
| Smooth power control (electronic) | 30-100% |
| Water temperature at inlet/outlet, °C | 75/95 (115) |
| Efficiency (%) | 98 |
| Electric boiler dimensions, mm | 680x890x1600 |
| Control cabinet dimensions, mm | 400x640x2000 |
| Mass of the boiler block, kg | 220 |
| control cabinet weight, mm | 120 |
Service life before decommissioning - 10 years.
