CN204225935U - The energy-conservation water replenishing device of a kind of thermal power generation unit exhaust casing - Google Patents
The energy-conservation water replenishing device of a kind of thermal power generation unit exhaust casing Download PDFInfo
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- CN204225935U CN204225935U CN201420633289.6U CN201420633289U CN204225935U CN 204225935 U CN204225935 U CN 204225935U CN 201420633289 U CN201420633289 U CN 201420633289U CN 204225935 U CN204225935 U CN 204225935U
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Abstract
The energy-conservation water replenishing device of a kind of thermal power generation unit exhaust casing, comprise water supply tank and be located at the spaced apart some layers of moisturizing atomizer nozzle group system in generator set exhaust casing throat, every layer of moisturizing atomizer nozzle group system, by being installed at generator set exhaust casing surrounding water-adding pipe and the some atomizer nozzles be located on exhaust casing surrounding moisturizing pipeline form, installing chemical water-adding pipe additional and is connected with water supply tank; The water vapour that atomizer nozzle sprays in the vapor flow direction steam and some layers of moisturizing atomizer nozzle group of exhaust casing throat becomes co-current contact from counter current contacting.This device can realize the requirement of deaeration in condenser in exhaust casing, effectively reduce the dissolved oxygen amount in generator set water of condensation, enhance heat exchange simultaneously, reduce the afterbody exhaust temperature of generator set steam turbine, thus reach the vacuum improving generator set, generator set coal consumption is reduced greatly, and backheat Economy significantly improves.
Description
Technical field
The utility model belongs to field of thermal power, is specifically related to the energy-conservation water replenishing device of a kind of thermal power generation unit exhaust casing.
Background technique
Thermal power generation unit refined condensate treatment index exceeding standard directly has influence on Economy and the Security of generator set, in addition a large amount of at present Direct Air-cooled Unit putting into operation in the northern area of China, the research of saving water and energy seems very important, from current state time generator group runnability, the dissolved oxygen of major part unit water of condensation has generally all exceeded the scope of 100 μ g/L, power technology supervision pertinent regulations are exceeded, ultrahigh pressure unit refined condensate treatment amount is less than or equal to 40 μ g/L, subcritical generator set refined condensate treatment amount should be less than or equal to 30 μ g/L, through our a large amount of analysis and research, and cause the subject matter of this reason to be exactly that water charging system is unreasonable causes for the design of generator set exhaust casing throat, cause water of condensation moisturizing oxygen content close to saturated, directly fill into condensed water in condenser Excessive Dissolved Oxygen, Excessive Dissolved Oxygen in Condensate main harm is as follows:
1, life of equipment is shortened
Generator set generally adopts extraction cycle, can produce serious corrosion when oxygen content is higher to heat regenerative system equipment, shortens the service life of equipment, refined condensate treatment amount exceeds standard simultaneously, accelerate the scale velocity of turbine blade, reduce steam turbine operation efficiency, affect the safe operation of unit.
2, the heat exchange efficiency of backheat equipment is reduced
Heat regenerative system adopts surface-type heat exchanger, and when the corrosion products of equipment is attached to heat exchange surface, form loose adhesive layer, refined condensate treatment is too high simultaneously, can form thin film, increase heat exchange group, reduce thermal efficiency of cycle at heat exchanger surface.
3, influential system vacuum
Vapour condenser equipment is in high vacuum when running, too much air bleeds and can cause the reduction of unit vacuum, increase the aggregate amount of air in vapour condenser, increase the weight of the burden of pumped vacuum systems, the noncondensing gas of vapour condenser can not be extracted out in time, the aggregate amount of air in further increase vapour condenser, result makes the heat release coefficient of steam significantly reduce, thus reduces the heat exchange efficiency of vapour condenser, improves the operating pressure of vapour condenser, reduce the thermal efficiency of unit, add power plant's electricity consumption.
Model utility content
The purpose of this utility model is to provide a kind of thermal power generation unit exhaust casing energy-conservation water replenishing device, and this device can make refined condensate treatment content effectively reduce, and enhances heat exchange, reduces exhaust temperature, improves unit operation vacuum values.
In order to achieve the above object, the technical solution adopted in the utility model is: comprise water supply tank and be located at some layers of moisturizing atomizer nozzle group system in generator set exhaust casing throat, some layers of moisturizing atomizer nozzle group system are arranged along the interval, vapor flow direction of generator set exhaust casing throat, every layer of moisturizing atomizer nozzle group system by being installed at the chemical water-adding pipe of generator set exhaust casing throat surrounding and being located at the some atomizer nozzles installed additional on chemical water-adding pipe and forming, and installs chemical water-adding pipe additional and is connected with water supply tank; Along the vapor flow direction of generator set exhaust casing throat, the water vapor that steam and atomizer nozzle in some layers of moisturizing atomizer nozzle group system spray changes following current into from counter current contacting and converges mutually and contact, thus play the effect of quick cooled electric generator group discharge cylinder of steam turbine exhaust steam, generator set exhaust casing delivery temperature than is originally significantly reduced.
In first layer moisturizing atomizer nozzle group system and last one deck moisturizing atomizer nozzle group system atomizer nozzle spray water vapor angle be 45 ° ~ 90 °, and the water vapor that the atomizer nozzle in first layer moisturizing atomizer nozzle group system sprays contacts with the steam counter-flow of generator set exhaust casing throat; The water vapor stream that in last one deck moisturizing atomizer nozzle group system, atomizer nozzle sprays and the steam co-current contact of generator set exhaust casing throat.
On the horizontal alignment that the water vapour that in described first layer moisturizing atomizer nozzle group system, atomizer nozzle sprays is positioned at generator set discharge cylinder of steam turbine throat 45 °; The water vapour that in last one deck moisturizing atomizer nozzle group system, atomizer nozzle sprays is positioned at lower 45 ° of the horizontal alignment of generator set exhaust casing throat, and this horizontal line is vertical with the vapor flow direction that generator set exhaust casing is discharged.
Some layers of described moisturizing atomizer nozzle group system are made up of first and second layer of atomization moisturizing nozzle sets system.
Some layers of described moisturizing atomizer nozzle group system also comprise third layer moisturizing atomizer nozzle group system.
The first chemical water-feeding valve is provided with between described water supply tank and first and second layer of moisturizing atomizer nozzle group system.
The chemical water-feeding valve phase with first is also provided with and the moisturizing by-pass valve connected between described water supply tank with first and second layer of moisturizing atomizer nozzle group system.
The second chemical water-feeding valve is also provided with between described water supply tank and third layer moisturizing atomizer nozzle group system.
The hollow cone fan nozzle that described atomizer nozzle adopts stainless steel to make or vortex atomizing nozzle.
Compared with prior art, the beneficial effects of the utility model are:
This use is novel is provided with some layers of moisturizing atomizer nozzle group system in exhaust casing throat, this system is made up of chemical water-adding pipe and the some atomizer nozzles be located on generator set exhaust casing surrounding chemistry water-adding pipe, and chemical water-adding pipe is connected with water supply tank, the water provided by water supply tank is like this through atomizer nozzle finer atomization, dissolved oxygen in water charging system can fully be separated out by the water vapor after atomization, realize the requirement of deaeration in condenser, effectively reduce the oxygen content of water of condensation, simultaneously because the exhaust steam area of contact of the water vapor after atomization and generator set increases, enhance heat exchange, thus reduce the exhaust temperature of generator set steam turbine, effectively raise generator set vacuum, generator set coal consumption is reduced greatly, heat-economy significantly improves.
Accompanying drawing explanation
Fig. 1 is overall schematic of the present utility model;
Wherein, 1, water supply tank, 2, first layer moisturizing atomizer nozzle group system, 3, second layer moisturizing atomizer nozzle group system, 4, third layer moisturizing atomizer nozzle group system, 5, exhaust pipeline, 6, system drain water piping, 7, condensation pump, 8, the first chemical water-feeding valve, 9, the second chemical water-feeding valve, 10, moisturizing bypass, 11, generator set turbine low pressure cylinder.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further details.
See Fig. 1, the some layers of moisturizing atomizer nozzle group system that the utility model comprises water supply tank 1 and is located in generator set exhaust casing throat; Generator set exhaust casing throat is positioned at the steam-expelling port of generator set low pressure (LP) cylinder 11, some layers of moisturizing atomizer nozzle group system are arranged along the interval, vapor flow direction of generator set exhaust casing throat, every layer of moisturizing atomizer nozzle group system is by being installed at the chemical water-adding pipe of generator set exhaust casing throat surrounding and being located at the some atomizer nozzles installed additional on chemical water-adding pipe and forming, and chemical water-adding pipe is connected with water supply tank 1; Along the vapor flow direction of generator set exhaust casing throat, the water vapor that steam and atomizer nozzle in some layers of moisturizing atomizer nozzle group system spray changes following current into from counter current contacting and converges mutually and contact, thus play the effect of quick cooled electric generator group discharge cylinder of steam turbine exhaust steam, generator set exhaust casing delivery temperature than is originally significantly reduced.The bottom of exhaust casing throat is provided with condensation pump 7, and the sidewall of exhaust casing throat is provided with system drain water piping 6.
In first layer moisturizing atomizer nozzle group system and last one deck moisturizing atomizer nozzle group system atomizer nozzle spray water vapor angle be 45 ° ~ 90 °, and the water vapor that the atomizer nozzle in first layer moisturizing atomizer nozzle group system sprays contacts with the steam counter-flow of generator set exhaust casing throat; The water vapor stream that in last one deck moisturizing atomizer nozzle group system, atomizer nozzle sprays and the steam co-current contact of generator set exhaust casing throat.On the horizontal alignment that the water vapour that in first layer moisturizing atomizer nozzle group system, atomizer nozzle sprays is positioned at generator set discharge cylinder of steam turbine throat 45 °; The water vapour that in last one deck moisturizing atomizer nozzle group system, atomizer nozzle sprays is positioned at lower 45 ° of the horizontal alignment of generator set exhaust casing throat, the water vapour direction that in the water vapour that in first layer moisturizing atomizer nozzle group system, atomizer nozzle sprays and last one deck moisturizing atomizer nozzle group system, atomizer nozzle sprays is about horizontal line specular, and this horizontal line is vertical with the vapor flow direction that generator set exhaust casing is discharged.
Some layers of moisturizing atomizer nozzle group system be located at the steam heating that atomizer nozzle can be sprayed in generator set exhaust casing throat to exhaust casing working pressure corresponding to the position of saturation temperature, can by the steam heating of atomizer nozzle ejection to the position of the saturation temperature corresponding to working pressure between the position that exhaust pipeline 5 is connected with generator set exhaust casing throat; The steam heating that atomizer nozzle can be sprayed to the position of the saturation temperature corresponding to working pressure at exhaust casing larynx absolute altitude 7-9 rice, also can according to different generator set flexible design setting height(from bottom).
Further, some layers of moisturizing atomizer nozzle group system are made up of first, second and third layer of moisturizing atomizer nozzle group system 2,3,4.Water supply tank 1 and first and second layer of moisturizing atomizer nozzle group system 2, the first chemical water-feeding valve 8 is provided with between 3, water supply tank 1 and first and second layer of moisturizing atomizer nozzle group system 2, also be provided with chemical water-feeding valve 8 phase with first between 3 and the moisturizing by-pass valve 10 connected, between water supply tank 1 and third layer moisturizing atomizer nozzle group system 4, be also provided with the second chemical water-feeding valve 9.The number of nozzle of every layer of specific design layout is according to the actual moisturizing situation design of generator set, wherein second and third layer of moisturizing atomizer nozzle group belongs to the normal moisturizing loop of unit, back-up circuit when the 3rd atomization moisturizing nozzle sets of this practicability Technology design increases as unit rate of water make-up.
First, second and third moisturizing atomizer nozzle group 2 in some layers of moisturizing atomizer nozzle group system of the utility model exhaust casing throat, the design of 3,4 is as follows: the steam heating that atomizer nozzle can be sprayed to the position of the saturation temperature corresponding to working pressure at exhaust casing larynx absolute altitude 7-9 rice.Wherein, the first moisturizing atomizer nozzle group system 2 is positioned at exhaust casing throat absolute altitude 9 meters of, and the water vapor that the atomizer nozzle in the first moisturizing atomizer nozzle group system 2 sprays contacts with steam counter-flow in generator set exhaust casing throat; The angle of the water vapor stream that the atomizer nozzle in generator set exhaust casing throat in steam and the first moisturizing atomizer nozzle group system 2 sprays is 45 ° ~ 90 °, is preferably 45 °; Second moisturizing atomizer nozzle group system 3 is positioned at exhaust casing throat absolute altitude 8 meters of, the water vapor stream of the atomizer nozzle ejection in the second moisturizing atomizer nozzle group system 2 is vertical with vapor flow direction in exhaust casing throat, and the angle of water vapor stream that the atomizer nozzle in exhaust casing throat in steam and the second moisturizing atomizer nozzle group system 2 sprays is 90 °; 3rd moisturizing atomizer nozzle group system 4 is positioned at exhaust casing throat absolute altitude 7 meters of, in 3rd moisturizing atomizer nozzle group system 2 atomizer nozzle ejection water vapor and generator set exhaust casing throat in steam co-current contact, and the water vapor stream that sprays of the atomizer nozzle in generator set exhaust casing throat in steam and the first moisturizing atomizer nozzle group system 2 is 45 ° ~ 90 °, is preferably 45 °.These positions possess three conditions of thermal de-aeration: must by the saturation temperature under steam heating to working pressure, and carbonated drink must have sufficient area of contact between the two, must discharge the oxygen of separating out in time.The chemical moisturizing provided by water supply tank 1 can make full use of exhaust steam and carry out deoxygenation after the atomization spray cap atomization of our device, vapour source is sufficient, and this design moisturizing position eminence drop is large, carbonated drink has and contacts heating time fully, can ensure to be heated to saturation temperature, distance vacuum pumping opening flow process is longer simultaneously, and the gas of precipitation can be discharged to air from pump-line by vacuum pump easily.In addition, the atomizer nozzle number of the first moisturizing atomizer nozzle group 2 is 120, every while arrange the atomizer nozzle (exhaust casing throat is under the prerequisite of quadrilateral) of 30 3.0L/min, the atomizer nozzle number of the second moisturizing atomizer nozzle group 3 is 160, every while arrange the atomizer nozzle (exhaust casing throat is under the prerequisite of quadrilateral) of 40 3.0L/min, first, two moisturizing atomizer nozzle groups normally run moisturizing to meet generator set, the atomizer nozzle number of the 3rd moisturizing atomizer nozzle group 4 is 160, every while arrange the atomizer nozzle of 40 5.0L/min, 3rd moisturizing atomizer nozzle group is as generator set moisturizing for subsequent use, use when in unit heat supply situation, rate of water make-up increases.
The hollow cone fan nozzle of atomizer nozzle for small flow, the material of nozzle is 1Cr18Ni9Ti, by reasonably superposing sequence between the adjacent spraying to multiinjector collector (i.e. first, second and third moisturizing atomizer nozzle group), formed on whole spraying section and spray uniform effect, heat and mass is abundant, and is conducive to the precipitation of gas.The utility model design parameter is, moisturizing working pressure: 0.5-1.0MPa, moisturizing temperature: 30 DEG C, rate of water make-up: 30-150t/h (can adjust rate of water make-up according to unit actual conditions).
The utility model changes the irrationality of the former design moisturizing of generator set, on DN159mm, the pipeline section of 1.5 meters long, the water supplementing method in the hole of φ 10mm is full of by former chemical water-adding pipe, design changes vortex atomizing nozzle into, can play on the one hand can the exhaust steam of cooled electric generator group fast in exhaust casing throat after moisturizing being atomized, generator set throat row's temperature reduces, enhance heat exchange to reduce exhaust temperature and improve unit vacuum backheat Economy and significantly improve, unit vacuum can be made to improve 1-4kpa; The requirement that simultaneously water of condensation moisturizing realizes deaeration in condenser after nozzle atomization moisturizing to steam exhaust device effectively reduces the oxygen content of moisturizing, thus refined condensate treatment content is effectively reduced requirement that its refined condensate treatment content has reached GB GB/T12145-2008 " thermal power generation unit and apparatus of steam power plants Water Vapor Quality " new standard.
The requirement that water of condensation moisturizing realizes deaeration in condenser after the utility model nozzle atomization moisturizing to steam exhaust device effectively reduces the oxygen content of moisturizing, thus refined condensate treatment content is effectively reduced requirement that its refined condensate treatment content has reached GB GB/T12145-2008 " thermal power generation unit and apparatus of steam power plants Water Vapor Quality " new standard.
Finally, the utility model also arranges first and second in parallel flow control device in the outlet of water-adding pipe 1, and first and second flow control device is by water pump and be arranged in the inlet valve of unit fixed on water pump suction and be arranged in the outlet valve composition of exit of pump.
Method for commissioning of the present utility model is as follows:
1, the first chemical water-feeding valve can be opened when unit normally runs, system water supplement in water supply tank 1 is by first and second moisturizing atomizer nozzle group system 2, the exhaust steam that need cool with generator set exhaust casing throat after the atomizer nozzle of 3 makes water fogging converges mutually, the exhaust steam of generator set part is cooled, the exhaust casing temperature also corresponding reduction of its correspondence, unit vacuum improves because exhaust casing temperature reduces, and the operational efficiency of the economy of unit also increases substantially.In addition, if the first chemical water-feeding valve breaks down, moisturizing bypass for subsequent use can be opened.
If 2 can not meet unit normal operation moisturizing when unlatching first chemical water-feeding valve loop, can open the second chemical water-feeding valve 9 loop, according to the demand of unit operation, adjust the rate of water make-up in this loop.The economic benefit of this energy-conservation water replenishing device.
Water of condensation moisturizing, after nozzle atomization moisturizing to steam exhaust device, realizes the requirement of deaeration in condenser, effectively reduces the oxygen content of moisturizing.The Subcoold temperature of water of condensation also decreases, winter is minimum can be controlled to 2 DEG C, thus refined condensate treatment content is effectively reduced, its refined condensate treatment content has reached the requirement of GB GB/T12145-2008 " thermal power generation unit and apparatus of steam power plants Water Vapor Quality " new standard.In addition, due to the enhanced water heat exchange of atomization, reduce exhaust temperature, improve unit vacuum, backheat Economy significantly improves.After the energy-conservation water replenishing device of generator set exhaust casing throat of the present utility model puts into operation, according to the theoretical equivalent enthalpy drop method of thermal technology, the exhaust steam that this design technology project makes generator set discharge can cool rapidly, thus improve unit vacuum and backheat Economy, make the water temperature entering oxygen-eliminating device improve simultaneously, oxygen content reduces, and improves oxygen-eliminating device oxygen removal efficiency.After adopting this device, coal consumption can decline about 2.5 grams/kilowatt hour, economic benefits.
Claims (9)
1. the energy-conservation water replenishing device of thermal power generation unit exhaust casing, it is characterized in that: comprise water supply tank (1) and be located at some layers of moisturizing atomizer nozzle group system in generator set exhaust casing throat, some layers of moisturizing atomizer nozzle group system are arranged along the interval, vapor flow direction of generator set exhaust casing throat, every layer of moisturizing atomizer nozzle group system by being installed at the chemical water-adding pipe of generator set exhaust casing throat surrounding and being located at the some atomizer nozzles installed additional on chemical water-adding pipe and forming, and installs chemical water-adding pipe additional and is connected with water supply tank (1); Along the vapor flow direction of generator set exhaust casing throat, the water vapor that steam and atomizer nozzle in some layers of moisturizing atomizer nozzle group system spray changes following current into from counter current contacting and converges mutually and contact, thus play the effect of quick cooled electric generator group discharge cylinder of steam turbine exhaust steam, generator set exhaust casing delivery temperature than is originally significantly reduced.
2. the energy-conservation water replenishing device of thermal power generation unit exhaust casing according to claim 1, it is characterized in that: in first layer moisturizing atomizer nozzle group system and last one deck moisturizing atomizer nozzle group system atomizer nozzle spray water vapor angle be 45 ° ~ 90 °, and the water vapor that the atomizer nozzle in first layer moisturizing atomizer nozzle group system sprays contacts with the steam counter-flow of generator set exhaust casing throat; The water vapor stream that in last one deck moisturizing atomizer nozzle group system, atomizer nozzle sprays and the steam co-current contact of generator set exhaust casing throat.
3. the energy-conservation water replenishing device of thermal power generation unit exhaust casing according to claim 1 and 2, is characterized in that: on the horizontal alignment that the water vapour that in described first layer moisturizing atomizer nozzle group system, atomizer nozzle sprays is positioned at generator set discharge cylinder of steam turbine throat 45 °; The water vapour that in last one deck moisturizing atomizer nozzle group system, atomizer nozzle sprays is positioned at lower 45 ° of the horizontal alignment of generator set exhaust casing throat, and this horizontal line is vertical with the vapor flow direction that generator set exhaust casing is discharged.
4. the energy-conservation water replenishing device of thermal power generation unit exhaust casing according to claim 1 and 2, is characterized in that: some layers of described moisturizing atomizer nozzle group system are atomized moisturizing nozzle sets system (2,3) by first and second layer and form.
5. the energy-conservation water replenishing device of thermal power generation unit exhaust casing according to claim 4, is characterized in that: some layers of described moisturizing atomizer nozzle group system also comprise third layer moisturizing atomizer nozzle group system (4).
6. the energy-conservation water replenishing device of thermal power generation unit exhaust casing according to claim 5, it is characterized in that: between described water supply tank (1) Yu first and second layer of moisturizing atomizer nozzle group system (2,3), be provided with the first chemical water-feeding valve (8).
7. the energy-conservation water replenishing device of thermal power generation unit exhaust casing according to claim 6, it is characterized in that: the moisturizing by-pass valve (10) being also provided with chemical water-feeding valve (8) Xiang Binglian with first between described water supply tank (1) Yu first and second layer of moisturizing atomizer nozzle group system (2,3).
8. the energy-conservation water replenishing device of thermal power generation unit exhaust casing according to claim 5, is characterized in that: be also provided with the second chemical water-feeding valve (9) between described water supply tank (1) and third layer moisturizing atomizer nozzle group system (4).
9. the energy-conservation water replenishing device of thermal power generation unit exhaust casing according to claim 1, is characterized in that: the hollow cone fan nozzle that described atomizer nozzle adopts stainless steel to make or vortex atomizing nozzle.
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| CN201420633289.6U CN204225935U (en) | 2014-10-28 | 2014-10-28 | The energy-conservation water replenishing device of a kind of thermal power generation unit exhaust casing |
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| CN201420633289.6U CN204225935U (en) | 2014-10-28 | 2014-10-28 | The energy-conservation water replenishing device of a kind of thermal power generation unit exhaust casing |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106091722A (en) * | 2016-07-15 | 2016-11-09 | 大唐(北京)能源管理有限公司 | A kind of plant condenser moisturizing atomization system |
| CN107255270A (en) * | 2017-06-29 | 2017-10-17 | 西安亨特电力科技有限公司 | A kind of exceeded administering method of thermal power generation unit condensate dissolved oxygen content |
| CN109341370A (en) * | 2018-12-21 | 2019-02-15 | 上海康力诺电力设备有限公司 | A kind of condenser depth atomization deaerating plant |
| CN111120021A (en) * | 2019-12-20 | 2020-05-08 | 东方电气集团东方汽轮机有限公司 | Water charging system for condenser of heat supply unit |
| CN113834344A (en) * | 2021-10-27 | 2021-12-24 | 连云港市泰格电力设备有限公司 | Water-replenishing atomization energy-saving device of condenser |
-
2014
- 2014-10-28 CN CN201420633289.6U patent/CN204225935U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106091722A (en) * | 2016-07-15 | 2016-11-09 | 大唐(北京)能源管理有限公司 | A kind of plant condenser moisturizing atomization system |
| CN106091722B (en) * | 2016-07-15 | 2024-03-22 | 大唐环境产业集团股份有限公司 | Water supplementing and atomizing system for condenser of power plant |
| CN107255270A (en) * | 2017-06-29 | 2017-10-17 | 西安亨特电力科技有限公司 | A kind of exceeded administering method of thermal power generation unit condensate dissolved oxygen content |
| CN109341370A (en) * | 2018-12-21 | 2019-02-15 | 上海康力诺电力设备有限公司 | A kind of condenser depth atomization deaerating plant |
| CN109341370B (en) * | 2018-12-21 | 2023-09-29 | 上海康力诺电力设备有限公司 | Deep atomization deoxidizing device for condenser |
| CN111120021A (en) * | 2019-12-20 | 2020-05-08 | 东方电气集团东方汽轮机有限公司 | Water charging system for condenser of heat supply unit |
| CN113834344A (en) * | 2021-10-27 | 2021-12-24 | 连云港市泰格电力设备有限公司 | Water-replenishing atomization energy-saving device of condenser |
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