CN109779704B - System and method for reducing backpressure of air cooling unit and dehumidifying and whitening smoke - Google Patents
System and method for reducing backpressure of air cooling unit and dehumidifying and whitening smoke Download PDFInfo
- Publication number
- CN109779704B CN109779704B CN201811593992.8A CN201811593992A CN109779704B CN 109779704 B CN109779704 B CN 109779704B CN 201811593992 A CN201811593992 A CN 201811593992A CN 109779704 B CN109779704 B CN 109779704B
- Authority
- CN
- China
- Prior art keywords
- steam
- condenser
- circulating water
- flue gas
- evaporator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/52—Heat recovery pumps, i.e. heat pump based systems or units able to transfer the thermal energy from one area of the premises or part of the facilities to a different one, improving the overall efficiency
Abstract
A system and a method for reducing the backpressure of an air cooling unit and dehumidifying and whitening smoke by using a compression heat pump are mainly applied to the air cooling unit for wet desulphurization in China, can ensure the backpressure of the air cooling unit, ensure the safe and economic operation of the unit, dehumidify and whiten the smoke, and reduce visual pollution and environmental pollution; the system comprises a compression type heat pump driving steam turbine, a coupling, a compressor, a condenser, a throttle valve, an evaporator, a flue gas heater, a connecting pipeline and a related valve; the main steam turbine extracts steam to drive the compression type heat pump to drive the steam turbine, the drive steam turbine drives the compressor through the coupling, and circulating water enters the evaporator of the compression type heat pump to take away part of the heat of the circulating water, so that the effect of reducing the back pressure of the air cooling unit is achieved; the condensed water enters a condenser of the compression heat pump to absorb heat, so that the heat is recovered; and the condensed water is introduced into the flue gas heater to heat and dehumidify the flue gas, and the condensed water coming out of the flue gas heater is introduced into the air heater to heat the air, so that the corrosion of the air preheater is reduced.
Description
Technical Field
The invention relates to the technical field of air cooling units, in particular to a system and a method for reducing back pressure of an air cooling unit and dehumidifying and whitening smoke by using a compression heat pump.
Background
The air-cooled thermal power generating unit is widely applied to arid water-deficient areas in China, and in summer, compared with a wet cooling unit with the same capacity, the air-cooled thermal power generating unit has the advantages that the power supply coal consumption is obviously increased, even the operation of limited load due to high back pressure occurs, and the peak regulation capacity of the unit is greatly reduced. In high-temperature and strong-wind weather, the condensing capacity of the air cooling tower is greatly reduced, and the back pressure of the unit is further influenced. At present, the heat of circulating water is taken away by the air at the air cooling tower and is got into the atmospheric environment, and this part waste heat is in large quantity, if can carry out recycle, then can promote the heat economy nature of unit greatly. Researchers have proposed that the compression heat pump is driven by the exhausted steam of the steam turbine to recover the waste heat of the power plant, heat the heat supply network water and realize the gradient utilization of energy. However, the system has the problems that enough heat consumers are needed to realize efficient operation, but most of the areas where the air cooling units are located are in northwest areas, the demand of the heat consumers is less, and in summer, under high temperature and strong wind, hot water is basically not needed, so that the economic benefit of the system is greatly influenced, and the application prospect of the technology is limited.
At present, most desulfurization systems of thermal power plants adopt a limestone gypsum wet desulfurization process, a gas-gas heat exchanger (GGH) device is omitted, clean flue gas is directly discharged from a chimney, and the chimney adopts a lining anticorrosive material to form a scheme of wet chimney discharge. After a desulfurization system without a GGH device is put into operation, although the blockage problem of GGH is effectively avoided, due to a 'wet chimney' smoke-free reheating measure, the exhaust gas temperature is low, and the purified flue gas with saturated water at the outlet of an absorption tower is partially condensed to form liquid drops in the exhaust process, so that not only is white smoke plume generated and visual influence caused, but also the flue gas cannot be effectively lifted and diffused into the atmosphere after being exhausted from a chimney port, so that the flue gas cannot be rapidly dissipated after the GGH device is cancelled, and particularly, when the local temperature and the air pressure are low or in the time period of haze weather, dust and liquid drops carried in the flue gas are gathered near the chimney and fall to the ground to form 'gypsum rain' or acid rain, so that a power plant and the surrounding environment are polluted and even equipment is corroded.
Disclosure of Invention
In order to achieve the purposes of reducing the circulating water temperature, further reducing the backpressure of the unit, improving the economy of the unit and dehumidifying the smoke by using the waste heat of the circulating water temperature, the invention provides a system and a method for reducing the backpressure of the air cooling unit and dehumidifying and whitening the smoke by using a compression heat pump.
In order to achieve the purpose, the invention adopts the following technical scheme:
a system for reducing the back pressure of an air cooling unit and dehumidifying and eliminating white smoke by using a compression heat pump comprises a compression heat pump driving steam turbine, a coupling, a compressor, a condenser, a throttle valve, an evaporator, a smoke heater, a fan heater, a connecting pipeline and a related valve;
the high-pressure steam extraction port of the steam turbine is connected with a high-pressure steam regulating valve, the low-pressure steam extraction of the steam turbine is connected with a low-pressure steam regulating valve and then connected with a driving extraction pressure regulating valve, the driving extraction pressure regulating valve is connected with the steam inlet of a compression heat pump driving steam turbine, and the steam outlet of the compression heat pump driving steam turbine is connected with a regenerative heater;
the compression type heat pump driving steam turbine is connected with the compressor through a coupling, a working medium outlet of the compressor is connected with a working medium inlet of the condenser, the working medium outlet of the condenser is connected with a working medium inlet of the evaporator through a throttle valve, and the working medium outlet of the evaporator is connected with the working medium inlet of the compressor;
the steam turbine exhaust outlet is connected with a condenser, the condenser circulating water outlet is connected with the air cooling tower circulating water inlet, the air cooling tower circulating water outlet is divided into two paths, one path is connected with the condenser circulating water inlet, the other path is connected with the evaporator circulating water inlet through a circulating water regulating valve, and the evaporator circulating water outlet is connected with the condenser circulating water inlet through a circulating water pipeline;
the condensed water outlet of the condenser is divided into two paths, one path is communicated with the regenerative heater, the first level is connected with the condensed water inlet of the condenser through a condensed water regulating valve, the condensed water outlet of the condenser is connected with the water side inlet of the flue gas heater, the water side outlet of the flue gas heater is connected with the water side inlet of the air heater, and the water side outlet of the air heater is connected with the shaft seal heater;
the flue gas outlet of the wet desulphurization tower is connected with the gas side inlet of the flue gas heater, and the gas side outlet of the flue gas heater is connected with the inlet of the chimney.
The invention provides a method for reducing the backpressure of an air cooling unit and dehumidifying and eliminating white smoke by using a compression heat pump,
two streams of steam are extracted from a steam turbine, one stream of steam has higher steam pressure and the other stream has lower steam pressure, a high-pressure steam extraction port is connected with a high-pressure steam regulating valve, and low-pressure steam extraction is connected with a low-pressure steam regulating valve; when the load of the unit changes and the change amplitude is less than 30%, the steam extraction pressure regulating valve is driven to ensure that the compression type driving steam turbine works safely and stably, and when the load change amplitude of the unit is more than 30%, the high-pressure steam regulating valve and the low-pressure steam regulating valve are regulated to switch a steam source to ensure that the compression type heat pump driving steam turbine runs safely and economically; introducing a regenerative heater with similar steam extraction parameters into steam of which the compression heat pump drives a steam turbine to do over work to heat condensed water;
the compression heat pump driving turbine is connected with the compressor through a coupling and transmits mechanical work to the compressor; the working medium enters from a working medium inlet of the compressor, is compressed by the compressor and then enters the condenser, and the working medium releases heat in the condenser to heat water extracted from condensed water; the circulating water enters an evaporator through a throttle valve, and the working medium absorbs heat in the evaporator, so that the temperature of the circulating water discharged from the air cooling tower is further reduced, and the back pressure of a unit is ensured; working medium from the evaporator enters a working medium inlet of the compressor to form a compression type heat pump working loop;
the steam turbine exhaust outlet is connected with a condenser, and the steam turbine exhaust exchanges heat with circulating water in the condenser to condense the steam turbine exhaust into condensed water; the condenser circulating water outlet is connected with the circulating water inlet of the air cooling tower, and the circulating water releases heat and cools in the air cooling tower; the circulating water outlet of the air cooling tower is divided into two paths, one path is connected with the circulating water inlet of the condenser, and the other path is connected with the circulating water inlet of the evaporator through a circulating water regulating valve; one path of circulating water connected with the evaporator can adjust the opening of a valve of an adjusting valve according to the operating condition and the environmental temperature of the unit, and change the flow of the working medium entering the evaporator, thereby achieving the purpose of controlling the temperature of the circulating water; one path of circulating water connected with the evaporator releases heat in the evaporator after entering the evaporator, thereby recycling the waste heat of the circulating water, reducing the temperature of the circulating water, reducing the back pressure of the steam turbine (1) and improving the economical efficiency of the unit; circulating water connected with the evaporator is mixed with the other path of circulating water connected with the condenser after coming out of the evaporator, so that the temperature of the circulating water is further reduced, and the circulating water are mixed and then enter the condenser to condense a steam turbine for steam exhaust, so that the back pressure of the steam turbine is ensured;
the condensed water outlet of the condenser is divided into two paths, one path is communicated with the regenerative heater, and the other path is connected with the condensed water inlet of the condenser through a condensed water regulating valve; one path of condensed water connected with the condenser can adjust the flow of the condensed water according to the running condition of the unit and the environmental temperature by adjusting a condensed water adjusting valve, and control the heat absorption capacity in the condenser and the heat release capacity in the flue gas heater, thereby ensuring the temperature of exhaust smoke; the condensed water connected with the condenser absorbs heat in the condenser, enters the flue gas heater after the temperature is increased, exchanges heat with the flue gas, and increases the temperature of the flue gas so that the temperature of the flue gas reaches the emission standard; the condensed water from the flue gas heater heats air in the air heater to reduce the corrosion of the air preheater, and the condensed water from the air heater is discharged into the shaft seal heater to recover waste heat;
the temperature of the flue gas at the flue gas outlet of the wet desulphurization tower is between 40 ℃ and 50 ℃, the moisture content is large, and the low-temperature flue gas absorbs the heat of the condensed water heated by the condenser in the flue gas heater, so that the temperature is increased and the proper discharge temperature is reached.
The invention has the following beneficial effects:
(1) the thermal economy is good. The system of the invention utilizes the evaporator to take away a part of circulating water heat, further reduces the circulating water temperature on the basis of the circulating water temperature at the outlet of the air cooling tower, not only recovers the waste heat of the circulating water, but also further ensures the back pressure of the unit by reducing the circulating water temperature;
(2) the flexibility is good. The system of the invention is provided with two steam sources at the driving steam extraction position of the compression heat pump driving steam turbine, can meet the driving steam extraction parameter and flow requirement of the driving steam turbine through the driving steam extraction pressure regulating valve and the high-low pressure regulating valve, and can still stably run under the variable load working condition.
(3) The environmental suitability is good. The system of the invention is adaptive to the environment at two places, one place is that a condensed water adjusting valve is arranged on a condensed water loop connected with a condenser, and the heat absorption capacity of the condensed water in the condenser and the heat release capacity of a flue gas heat exchanger are adjusted by adjusting the opening degree of the condensed water adjusting valve, so that the requirement of the exhaust gas temperature can be met in different environments; and the circulating water regulating valve is arranged on a circulating water path between the outlet of the air cooling tower and the circulating water inlet of the evaporator, the flow rate of the circulating water path can be regulated by regulating the opening degree of the circulating water regulating valve, so that the heat release quantity of the circulating water in the evaporator is regulated, and then the circulating water path is introduced into the evaporator after the air cooling tower, so that the temperature of the circulating water can be reduced again on the basis of fully cooling the air cooling tower, and the requirement of the temperature of the circulating water at higher environmental temperature can be met.
Drawings
FIG. 1 is a schematic diagram of the system of the present invention.
The system comprises a steam turbine 1, a high-pressure steam regulating valve 2, a low-pressure steam regulating valve 3, a driving extraction pressure regulating valve 4, a compression heat pump driving steam turbine 5, a coupler 6, a compressor 7, a condenser 8, a throttle valve 9, an evaporator 10, a circulating water regulating valve 11, a condenser 12, an air cooling tower 13, a condensed water regulating valve 14, a wet desulfurization tower 15, a flue gas heater 16, a fan heater 17 and a chimney 18.
Detailed Description
The embodiments of the present invention will be described in detail below with reference to the drawings and examples.
Two streams of steam are extracted from the steam turbine 1, one stream of steam pressure is high, one stream of steam pressure is low, a high-pressure steam extraction port is connected with a high-pressure steam regulating valve 2, low-pressure steam extraction is connected with a low-pressure steam regulating valve 3, when the unit normally operates, the high-pressure steam regulating valve 2 is closed, the low-pressure steam regulating valve 3 is opened, and the low-pressure steam extraction is driven to extract steam by a compression type driving steam turbine 5. When the load variation amplitude of the unit is larger than 30%, the high-pressure steam regulating valve 2 and the low-pressure steam regulating valve 3 are regulated to switch a steam source to enable the compression type heat pump driving steam turbine 5 to run safely and economically. The compressed heat pump drives the steam turbine 5 to do over-work steam, and a regenerative heater with similar steam extraction parameters is introduced to heat the condensed water.
The compression heat pump drive turbine 5 is connected to the compressor 7 via a coupling 6, and transmits mechanical work to the compressor 7. The working medium enters from a working medium inlet of the compressor 7, is compressed by the compressor 7 and then enters the condenser 8, and the working medium releases heat in the condenser 8 to heat water extracted from condensed water. And then enters the evaporator 10 through the throttle valve 9, and the medium absorbs heat in the evaporator 10, so that the temperature of the circulating water coming out of the air cooling tower 13 is further reduced, and the back pressure of the unit is ensured. Working medium from the evaporator 10 enters a working medium inlet of the compressor 7 to form a compression type heat pump working loop.
An exhaust steam outlet of the steam turbine 1 is connected with a condenser 12, and exhaust steam of the steam turbine 1 exchanges heat with circulating water in the condenser 12 to condense the exhaust steam of the steam turbine 1 into condensed water. The circulating water outlet of the condenser 12 is connected with the circulating water inlet of the air cooling tower 13, and the circulating water releases heat and cools in the air cooling tower 13. The circulating water outlet of the air cooling tower 13 is divided into two paths, one path is connected with the circulating water inlet of the condenser 12, and the other path is connected with the circulating water inlet of the evaporator 10 through the circulating water regulating valve 11. The circulating water connected with the evaporator 10 can adjust the opening of the circulating water adjusting valve 11 according to the operating condition and the environmental temperature of the unit, and change the flow of the working medium entering the evaporator 10, thereby achieving the purpose of controlling the temperature of the circulating water. One path of circulating water connected with the evaporator 10 releases heat in the evaporator 10 after entering the evaporator 10, thereby recycling the waste heat of the circulating water, reducing the temperature of the circulating water, reducing the back pressure of the steam turbine (1) and improving the economical efficiency of the unit. The circulating water connected with the evaporator 10 is mixed with the other path of circulating water connected with the condenser 12 after coming out from the evaporator 10, so that the temperature of the circulating water is further reduced, and the circulating water are mixed and then enter the condenser 12 to condense the steam turbine 1 for steam exhaust, thereby ensuring the back pressure of the steam turbine 1.
The condensed water outlet of the condenser 12 is divided into two paths, one path leads to the regenerative heater, and the other path is connected with the condensed water inlet of the condenser 8 through a condensed water regulating valve 14. One path of condensed water connected with the condenser 8 can adjust the flow of the condensed water through a condensed water adjusting valve 14 according to the running condition of the unit and the environmental temperature, and control the heat absorption amount in the condenser 8 and the heat release amount in the flue gas heater 16, thereby ensuring the temperature of exhaust gas. The condensed water connected with the condenser 8 absorbs heat in the condenser 8, enters the flue gas heater 16 after the temperature is increased, exchanges heat with the flue gas, and increases the temperature of the flue gas, so that the temperature of the flue gas reaches the emission standard. The condensed water from the flue gas heater 16 heats the air in the air heater 17 to reduce the corrosion of the air preheater, and the condensed water from the air heater 17 is discharged into the shaft seal heater to recover the waste heat.
The flue gas at the flue gas outlet of the wet desulphurization tower 15 is about 40 ℃, the moisture content is large, and the low-temperature flue gas absorbs the heat of the condensed water heated by the condenser 8 in the flue gas heater 16, so that the temperature is increased and the proper discharge temperature is reached.
Claims (3)
1. The utility model provides an utilize compression heat pump to reduce air cooling unit backpressure and to the system that flue gas dehumidification was disappeared white which characterized in that: the system comprises a compression type heat pump driving steam turbine (5), a coupling (6), a compressor (7), a condenser (8), a throttle valve (9), an evaporator (10), a flue gas heater (16), a fan heater (17), a connecting pipeline and a related valve;
a high-pressure steam extraction port of the steam turbine (1) is connected with a high-pressure steam regulating valve (2), low-pressure extraction of the steam turbine (1) is connected with a low-pressure steam regulating valve (3) and then connected with a driving extraction pressure regulating valve (4), the driving extraction pressure regulating valve (4) is connected with a steam inlet of a compression type heat pump driving steam turbine (5), and a steam outlet of the compression type heat pump driving steam turbine (5) is connected with a regenerative heater; the compression type heat pump driving steam turbine (5) is connected with the compressor (7) through the coupling (6), a working medium outlet of the compressor (7) is connected with a working medium inlet of the condenser (8), a working medium outlet of the condenser (8) is connected with a working medium inlet of the evaporator (10) through the throttle valve (9), and a working medium outlet of the evaporator (10) is connected with the working medium inlet of the compressor (7);
an exhaust steam outlet of a steam turbine (1) is connected with a condenser (12), a circulating water outlet of the condenser (12) is connected with a circulating water inlet of an air cooling tower (13), the circulating water outlet of the air cooling tower (13) is divided into two paths, one path is connected with the circulating water inlet of the condenser (12), the other path is connected with the circulating water inlet of an evaporator (10) through a circulating water regulating valve (11), and the circulating water outlet of the evaporator (10) is connected with the circulating water inlet of the condenser (12) through a circulating water pipeline;
the condensed water outlet of the condenser (12) is divided into two paths, one path is communicated with the regenerative heater, the other path is connected with the condensed water inlet of the condenser (8) through a condensed water regulating valve (14), the condensed water outlet of the condenser (8) is connected with the water side inlet of the flue gas heater (16), the water side outlet of the flue gas heater (16) is connected with the water side inlet of the air heater (17), and the water side outlet of the air heater (17) is connected with the shaft seal heater;
the flue gas outlet of the wet desulphurization tower (15) is connected with the gas side inlet of the flue gas heater (16), and the gas side outlet of the flue gas heater (16) is connected with the inlet of the chimney (18).
2. The system for reducing the backpressure of the air cooling unit and dehumidifying and eliminating the white smoke by using the compression heat pump according to claim 1, is characterized in that: the working medium is freon steam.
3. A method for reducing the backpressure of an air cooling unit and dehumidifying and whitening flue gas by using a compression heat pump is characterized in that based on the system for reducing the backpressure of the air cooling unit and dehumidifying and whitening flue gas by using the compression heat pump in claim 1, the specific method is as follows:
two streams of steam are extracted from a steam turbine (1), one stream of steam has higher steam pressure and the other stream of steam has lower steam pressure, a high-pressure steam extraction port is connected with a high-pressure steam regulating valve (2), low-pressure steam extraction is connected with a low-pressure steam regulating valve (3), when a unit normally operates, the high-pressure steam regulating valve (2) is closed, the low-pressure steam regulating valve (3) is opened, and the low-pressure steam extraction is driven by a compression heat pump to drive a steam turbine (5) to extract steam; when the load of the unit is changed and the load change amplitude is less than 30%, the steam extraction pressure regulating valve (4) is driven to ensure that the compression type driving steam turbine (5) works safely and stably, and when the load change amplitude of the unit is more than 30%, the steam source is switched to ensure that the compression type heat pump driving steam turbine (5) runs safely and economically by regulating the high-pressure steam regulating valve (2) and the low-pressure steam regulating valve (3); the compressed heat pump drives the steam turbine (5) to do over-work steam, a regenerative heater with similar steam extraction parameters is introduced, and condensed water is heated;
the compression heat pump driving turbine (5) is connected with the compressor (7) through a coupling (6) and transmits mechanical work to the compressor (7); the working medium enters from a working medium inlet of the compressor (7), is compressed by the compressor (7) and then enters the condenser (8), and the working medium is heated in the condenser (8) to heat water extracted from condensed water; then enters the evaporator (10) through the throttle valve (9), and the working medium absorbs heat in the evaporator (10), so that the temperature of the circulating water discharged from the air cooling tower (13) is further reduced, and the back pressure of the unit is ensured; working medium from the evaporator (10) enters a working medium inlet of the compressor (7) to form a compression type heat pump working circuit;
the exhaust steam outlet of the steam turbine (1) is connected with a condenser (12), and the exhaust steam of the steam turbine (1) exchanges heat with circulating water in the condenser (12) to condense the exhaust steam of the steam turbine (1) into condensed water; a circulating water outlet of the condenser (12) is connected with a circulating water inlet of the air cooling tower (13), and the circulating water releases heat and cools in the air cooling tower (13); the circulating water outlet of the air cooling tower (13) is divided into two paths, one path is connected with the circulating water inlet of the condenser (12), and the other path is connected with the circulating water inlet of the evaporator (10) through the circulating water regulating valve (11); one path of circulating water connected with the evaporator (10) adjusts the opening of a circulating water adjusting valve (11) according to the operating condition of the unit and the environmental temperature, and changes the flow of the working medium entering the evaporator (10), thereby achieving the purpose of controlling the temperature of the circulating water; one path of circulating water connected with the evaporator (10) releases heat in the evaporator (10) after entering the evaporator (10), so that on one hand, the waste heat of the circulating water is recovered, on the other hand, the temperature of the circulating water is reduced, the back pressure of the steam turbine (1) is reduced, and the economical efficiency of a unit is improved; circulating water connected with the evaporator (10) is mixed with the other path of circulating water connected with the condenser (12) after coming out of the evaporator (10), so that the temperature of the circulating water is further reduced, and the circulating water are mixed and then enter the condenser (12) to condense the steam turbine (1) for steam exhaust, so that the back pressure of the steam turbine (1) is ensured;
the condensed water outlet of the condenser (12) is divided into two paths, one path leads to the regenerative heater, and the other path is connected with the condensed water inlet of the condenser (8) through a condensed water regulating valve (14); one path of condensed water connected with the condenser (8) is used for regulating the flow of the condensed water through a condensed water regulating valve (14) according to the running condition of the unit and the environmental temperature, and controlling the heat absorption amount in the condenser (8) and the heat release amount in the flue gas heater (16), thereby ensuring the temperature of exhaust gas; the condensed water connected with the condenser (8) absorbs heat in the condenser (8), enters the flue gas heater (16) after the temperature is increased, exchanges heat with the flue gas, and increases the temperature of the flue gas to ensure that the temperature of the flue gas reaches the emission standard; the condensed water from the flue gas heater (16) heats air in the air heater (17) to reduce the corrosion of the air preheater, and the condensed water from the air heater (17) is discharged into the shaft seal heater to recover waste heat;
the temperature of the flue gas at the flue gas outlet of the wet desulphurization tower (15) is between 40 ℃ and 50 ℃, the moisture content is high, and the low-temperature flue gas absorbs the heat of the condensed water heated by the condenser (8) in the flue gas heater (16), so that the temperature is increased to reach the preset discharge temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811593992.8A CN109779704B (en) | 2018-12-25 | 2018-12-25 | System and method for reducing backpressure of air cooling unit and dehumidifying and whitening smoke |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811593992.8A CN109779704B (en) | 2018-12-25 | 2018-12-25 | System and method for reducing backpressure of air cooling unit and dehumidifying and whitening smoke |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109779704A CN109779704A (en) | 2019-05-21 |
| CN109779704B true CN109779704B (en) | 2020-04-10 |
Family
ID=66498281
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811593992.8A Active CN109779704B (en) | 2018-12-25 | 2018-12-25 | System and method for reducing backpressure of air cooling unit and dehumidifying and whitening smoke |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109779704B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110645587B (en) * | 2019-11-01 | 2023-11-17 | 浙江城建煤气热电设计院有限公司 | Condensate water waste heat recycling system of flue gas whitening device |
| CN111928511B (en) * | 2020-08-07 | 2021-09-07 | 西安西热节能技术有限公司 | Liquefied air energy storage peak shaving system and method based on compressor intermediate suction |
| CN113818934B (en) * | 2021-10-19 | 2023-07-18 | 安徽普泛能源技术有限公司 | Adjustable combined cooling and power system and process and operation method thereof |
| CN114485203A (en) * | 2022-01-28 | 2022-05-13 | 山西启光发电有限公司 | System and method for reducing backpressure of condenser of air cooling unit |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE395175B (en) * | 1975-08-05 | 1977-08-01 | Stal Laval Turbin Ab | ENERGY UNIT FOR SUPPLY OF DISTRICT HEATING SYSTEM |
| JPH0291404A (en) * | 1988-09-27 | 1990-03-30 | Masayuki Arai | Exhaust absorbing steam motor |
| CN106437906B (en) * | 2016-08-16 | 2018-08-07 | 华电电力科学研究院 | A kind of indirect air cooling unit circulating water exhaust heat recovery device and method |
| CN207214215U (en) * | 2017-09-15 | 2018-04-10 | 中国建筑标准设计研究院有限公司 | A kind of compression type heat heat pump heating system using Air-cooled Unit subsidiary engine cooling water heat |
| CN208139315U (en) * | 2018-05-03 | 2018-11-23 | 淄博英诺威圣节能科技有限公司 | A kind of system eliminated boiler and industrial furnace chimney and emit white cigarette |
-
2018
- 2018-12-25 CN CN201811593992.8A patent/CN109779704B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN109779704A (en) | 2019-05-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109779704B (en) | System and method for reducing backpressure of air cooling unit and dehumidifying and whitening smoke | |
| US11821637B2 (en) | Energy-saving system using electric heat pump to deeply recover flue gas waste heat from heat power plant for district heating | |
| CN201251371Y (en) | Flue gas pre-cooling system with highly-effective water and energy conservation | |
| CN107883744B (en) | Control method of self-adaptive and self-adjusting heat pump hot blast stove control system | |
| CN111396913A (en) | System and method for recovering flue gas waste heat and moisture of coal-fired unit | |
| CN109945277A (en) | A kind of energy conserving system being used for central heating using electric heat pump depth recycling remaining heat of flue gas from steam power plant | |
| CN110273759B (en) | IGCC thermoelectric system and method for realizing deep utilization of flue gas waste heat and cooling of inlet air | |
| CN108758584A (en) | A kind of cold and hot storage alliance coal fired power plant air cooling system and its operation regulation and control method of waste heat combination driving | |
| CN1309997C (en) | Energy accumulation type combustion gas and heat pump composite air-conditioning | |
| CN210638065U (en) | Gas boiler flue gas is totally disappeared white and waste heat degree of depth recycle system | |
| CN106123002A (en) | A kind of flue gas MGGH system and method using condensation water heat exchange | |
| CN215294975U (en) | Flue gas waste heat recovery and white smoke elimination integrated system based on absorption heat pump | |
| CN109579036A (en) | A kind of demisting disappears the heat pump integrated heating system of bletilla preheating raw coal | |
| CN210373507U (en) | White smoke plume eliminating device of coal-fired power plant | |
| CN112833382A (en) | Multi-stage waste heat comprehensive utilization device and method for power plant | |
| CN2802386Y (en) | Gas heat pump combined air conditioner | |
| CN109990305B (en) | White smoke plume eliminating device for coal-fired power plant and working method | |
| CN202056856U (en) | System for recycling afterheat of flue gas through high-temperature coal economizer | |
| CN208012160U (en) | It is a kind of to carry out flue gas condensing dehumidifying temperature elevation system again using compression heat pump | |
| CN110864324A (en) | System and method for improving boiler efficiency by using low-temperature waste heat of flue gas | |
| CN111023134A (en) | Heat source tower heat pump for full heat recovery and quality improvement of flue gas waste heat | |
| CN206257691U (en) | A kind of flue gas MGGH systems of use condensate heat exchange | |
| CN211146536U (en) | Boiler flue gas waste heat utilization system of thermal power factory | |
| CN113834085A (en) | Flue gas waste heat recovery and hot water white elimination system and working method thereof | |
| CN114151822A (en) | System and method for preheating pulverized coal by flash evaporation and heat extraction of desulfurization slurry |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |