CN101832623B - Pre-heat system of thermal power plant - Google Patents
Pre-heat system of thermal power plant Download PDFInfo
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- CN101832623B CN101832623B CN2010101429321A CN201010142932A CN101832623B CN 101832623 B CN101832623 B CN 101832623B CN 2010101429321 A CN2010101429321 A CN 2010101429321A CN 201010142932 A CN201010142932 A CN 201010142932A CN 101832623 B CN101832623 B CN 101832623B
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Abstract
The invention relates to a pre-heat system of a thermal power plant, at least comprising a set of heat pump air conditioning unit, a pump, a pool, a cooling tower, a stream condenser, a condensate pump, a low-temperature heater, a deaerator, a high-temperature heater and a boiler; the pool is below the cooling tower, the heat pump air conditioner unit comprises a evaporimeter, a compressor, a condenser and an expansion valve which constitute a circulation loop; an water outlet of the evaporimeter is connected with an water inlet of the stream condenser through the pump, the water inlet of the evaporimeter is connected with the pool by the pump, the water inlet of the condenser is connected with one water outlet of the stream condenser by the pump, the water outlet of the condenser is respectively connected with the condensate pump, the lower-temperature heater, the deaerator, the pump, the high-temperature heater and the boiler; the other water outlet of the condenser is connected with the cooling tower; the water outlet and the pump of the evaporimeter are connected by a pipeline and the pipeline of the water outlet of the pump of the evaporimeter and are then connected with the water inlet of the evaporimeter; in the invention, the advantages and characteristics of the air conditioner unit is made use of to reduce burning and pollution of coal and improve power generating efficiency.
Description
Technical field
The present invention relates to the pre-heating system of a kind of pre-heating system, particularly a kind of thermal power plant.
Background technology
The capital equipment system of heat power station comprises: fuel feed system, water supply system, vapour system, cooling system, electrical system and some other aid in treatment equipment.Thermal power generation also is one of traditional electric power energy obtaining means, especially in the area that lacks water resource.With respect to the hydroelectric generation that needs are built dam and reservoir, have the characteristics of small investment, instant effect.But thermal power generation is to serious environment pollution, and this is a difficult problem that needs solution at present.
Traditional coal firepower electricity generating principle is to utilize the steam that heat produces of coal burning to drive turbine generation.
Summary of the invention
The objective of the invention is system that the heat that water source heat pump air conditioning system produces is carried out preheating for the heat power station steam boiler, its is again the recooling system that utilizes water source heat pump air conditioning system to lower the temperature again for cooling-tower circulating water simultaneously.This invention can utilize regenerated resources, the energy-conservation energy.
In order to accomplish the object of the invention, the present invention adopts following technology to put case:
The pre-heating system in a kind of thermal power plant of the present invention; It comprises: at least one group of heat pump air conditioner unit, pump, pond, cooling tower, condenser, condensate pump, low-temperature heater, oxygen-eliminating device, high temperature heater (HTH) and boiler; The pond is below cooling tower; The heat pump air conditioner unit comprises: the closed circuit that evaporimeter, compressor, condenser and expansion valve are formed; Wherein: the delivery port of evaporimeter links to each other with the water inlet of condenser through pump, and the water inlet of evaporimeter links to each other with the pond through pump, and the water inlet of condenser links to each other with a delivery port of condenser through pump; The delivery port of condenser links to each other with condensate pump, low-temperature heater, oxygen-eliminating device, pump, high temperature heater (HTH) and boiler successively; Another delivery port of condenser links to each other with cooling tower, and the water that gets off from cooling tower gets into the pond, and the pipeline of the delivery port of the pump through pipeline and evaporimeter between the water inlet of evaporimeter and pump links to each other and then links to each other with the water inlet of condenser;
The pre-heating system in a kind of thermal power plant of the present invention, wherein: described heat pump air conditioner unit is 1-10;
The pre-heating system in a kind of thermal power plant of the present invention, wherein: described condenser is a heat exchanger;
The pre-heating system in a kind of thermal power plant of the present invention, wherein: said evaporimeter and condenser are heat exchanger;
The pre-heating system in a kind of thermal power plant of the present invention, wherein: described heat exchanger is plate type heat exchanger, coil heat exchanger or shell and tube exchanger;
The pre-heating system in a kind of thermal power plant of the present invention, wherein: described boiler is the boiler that thermal power generation is used.
The present invention utilizes the evaporimeter of water source heat pump air-conditioner unit refrigeration, and the principle that the while condenser heats is formed the water heating that two water systems flow out to condenser respectively, cools off for simultaneously the cooling water that the cooling-tower circulating water pump flows out again.The operation respectively of two water systems in pre-heating system, can reduce burning of coal, reduces and pollutes.Cooling again at cooling water system can improve generating efficiency.The advantage and the characteristics of this air-conditioning unit have been made full use of.
Description of drawings
Fig. 1 is the sketch map of the pre-heating system in a kind of thermal power plant of the present invention.
The specific embodiment
As shown in Figure 1; The pre-heating system in thermal power plant of the present invention comprises: at least one group of boiler 14 that heat pump air conditioner unit 1, pump 6, pond 7, cooling tower 8, condenser 9, condensate pump 10, low-temperature heater 11, oxygen-eliminating device 12, high temperature heater (HTH) 13 and thermal power generation are used, pond 7 is below cooling tower 8.Heat pump air conditioner unit 1 comprises: the closed circuit that evaporimeter 2, compressor 4, condenser 3 and expansion valve 5 are formed; Charge into cold-producing medium (cold-producing medium is 134a, cold-producing medium 407c or high temperature refrigerant working medium) in this loop; The delivery port of evaporimeter 2 links to each other with the water inlet of condenser 9 through pump 6; The water inlet of evaporimeter 2 links to each other with pond 7 through pump 6; The water inlet of condenser 3 links to each other with a delivery port of condenser 9 through pump 6, and the delivery port of condenser 3 links to each other with condensate pump 10, low-temperature heater 11, oxygen-eliminating device 12, pump 6, high temperature heater (HTH) 13 and boiler 14 successively, and another delivery port of condenser 9 links to each other with cooling tower 8; The water that gets off from cooling tower 8 gets into the pond 7, and the pipeline of the delivery port of the pump 6 through pipeline and evaporimeter 2 between the water inlet of evaporimeter 2 and pump 6 links to each other and then links to each other with the water inlet of condenser.
The heat pump air conditioner unit though Fig. 1 has only drawn, in fact, the pre-heating system in thermal power plant can be connected with 1-10 heat pump air conditioner unit.
It is heat exchanger that condenser 9 among Fig. 1, evaporimeter 2 and condenser 3 are heat exchanger, and they can be plate type heat exchanger, coil heat exchanger or shell and tube exchanger.
Water source heat pump air-conditioner unit 1 has been connected through copper pipe by compressor 4, evaporimeter 2, condenser 3, expansion valve 5 these four critical pieces and has formed the loop.In this loop, evaporimeter 2 is two heat exchangers of water source heat pump units 1 with condenser 3, its operation mechanism be two cold-producing mediums in the heat exchanger respectively with two heat exchangers in water carry out heat exchange.Water source heat pump air-conditioner unit 1 is in operation work; Cold-producing medium in evaporimeter 2, absorb heat (refrigeration); Its cooling to as if from pond 7, flow out to get into the water in the evaporimeter 2; Water after the cooling gets into condensers 9 through pump 6, and promptly water gets into evaporimeters 2 from the pond 7 of cooling tower 8 belows through pumps 6 and lowers the temperature after 1-5 ℃ again, delivers to condenser 9 again.Cold-producing medium is heat radiation in condenser 3, heating to as if the water that flows into the condensers 3 through pumps 6 from condenser 9.To the flow through temperature increase of water of condenser 3 of cold-producing medium.30 ℃ of water that flow out from condenser 9 are heated to 65 ℃ or 85 ℃ through after the preheating of condenser 3, deliver to condensate pump 10, low-temperature heater 11, oxygen-eliminating device 12, pump 6 and high temperature heater (HTH) 13 then successively after, send into the boiler 14 that thermal power generation is used at last.The efficient of this water source heat pump air-conditioner unit is: Energy Efficiency Ratio is about 4.5.
More than describing is to explanation of the present invention, is not that institute of the present invention restricted portion is referring to claim to the qualification of invention, and under the situation of spirit of the present invention, the present invention can do any type of modification.
Claims (6)
1. the pre-heating system in a thermal power plant; It comprises: at least one group of heat pump air conditioner unit (1), pump (6), pond (7), cooling tower (8), condenser (9), condensate pump (10), low-temperature heater (11), oxygen-eliminating device (12), high temperature heater (HTH) (13) and boiler (14); Pond (7) is in the below of cooling tower (8); Heat pump air conditioner unit (1) comprising: the closed circuit that evaporimeter (2), compressor (4), condenser (3) and expansion valve (5) are formed; It is characterized in that: the delivery port of evaporimeter (2) links to each other with the water inlet of condenser (9) through pump (6); The water inlet of evaporimeter (2) links to each other with pond (7) through pump (6); The water inlet of condenser (3) links to each other with a delivery port of condenser (9) through pump (6); The delivery port of condenser (3) links to each other with condensate pump (10), low-temperature heater (11), oxygen-eliminating device (12), pump (6), high temperature heater (HTH) (13) and boiler (14) successively; Another delivery port of condenser (9) links to each other with cooling tower (8), and the water that gets off from cooling tower (8) gets into the pond (7), and the pipeline through pump (6) delivery port on pipeline and evaporimeter (2) water outlet end between the water inlet of evaporimeter (2) and pump (6) links to each other and then links to each other with the water inlet of condenser (9).
2. the pre-heating system in thermal power plant as claimed in claim 1 is characterized in that: described heat pump air conditioner unit (1) is 1-10.
3. the pre-heating system in thermal power plant as claimed in claim 2, it is characterized in that: described condenser (9) is a heat exchanger.
4. the pre-heating system in thermal power plant as claimed in claim 3, it is characterized in that: said evaporimeter (2) and condenser (3) are heat exchanger.
5. like the pre-heating system in claim 3 or 4 described thermal power plants, it is characterized in that: described heat exchanger is plate type heat exchanger, coil heat exchanger or shell and tube exchanger.
6. the pre-heating system in thermal power plant as claimed in claim 5, it is characterized in that: described boiler is the boiler that thermal power generation is used.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101429321A CN101832623B (en) | 2010-04-09 | 2010-04-09 | Pre-heat system of thermal power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101429321A CN101832623B (en) | 2010-04-09 | 2010-04-09 | Pre-heat system of thermal power plant |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101832623A CN101832623A (en) | 2010-09-15 |
| CN101832623B true CN101832623B (en) | 2012-05-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010101429321A Expired - Fee Related CN101832623B (en) | 2010-04-09 | 2010-04-09 | Pre-heat system of thermal power plant |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102261768A (en) * | 2011-06-02 | 2011-11-30 | 杨贻方 | Heat pump special for power station |
| CN103591572A (en) * | 2013-11-15 | 2014-02-19 | 大连圣鼎工业装备有限公司 | Steam boiler energy-saving water feeding device acquiring free cool air supply |
| CN107062934B (en) * | 2017-05-15 | 2022-11-25 | 华电电力科学研究院有限公司 | Energy-saving vacuumizing cooling system and method |
| CN107120826A (en) * | 2017-06-16 | 2017-09-01 | 大连恒通和科技有限公司 | Module pneumoelectric alliance hot-water heating system |
| CN113776231A (en) * | 2021-10-15 | 2021-12-10 | 西安热工研究院有限公司 | Condenser waste heat recycling system and method based on heat pump and refrigerating system |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201059543Y (en) * | 2007-06-14 | 2008-05-14 | 陈天成 | Energy-saving heat pump type steam can |
| CN101135437A (en) * | 2007-10-12 | 2008-03-05 | 莱芜钢铁集团有限公司 | Method and device for recycling residual heat of blast furnace low-temperature recirculated water with heat pump technology |
| CN100507375C (en) * | 2008-02-28 | 2009-07-01 | 清华大学 | Large temperature-difference central heating system |
| CN201666569U (en) * | 2010-04-09 | 2010-12-08 | 王金柱 | Pre-heating system for coal -fired power plant |
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2010
- 2010-04-09 CN CN2010101429321A patent/CN101832623B/en not_active Expired - Fee Related
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| CN101832623A (en) | 2010-09-15 |
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Effective date of registration: 20140331 Address after: 266000 Shandong province north of Qingdao Laoshan Road No. 1022 Qingdao arts 1688 Creative Industry Park D-2 building 4 floor Patentee after: Shandong rich new energy Co., Ltd. Patentee after: Wang Jinzhu Address before: 100061, No. 6, credit north, Chongwen District, Beijing Patentee before: Wang Jinzhu |
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Address after: 266000 Shandong province north of Qingdao Laoshan Road No. 1022 Qingdao arts 1688 Creative Industry Park D-2 building 4 floor Patentee after: SHANDONG FUTE ENERGY MANAGEMENT CO., LTD. Patentee after: Wang Jinzhu Address before: 266000 Shandong province north of Qingdao Laoshan Road No. 1022 Qingdao arts 1688 Creative Industry Park D-2 building 4 floor Patentee before: Shandong rich new energy Co., Ltd. Patentee before: Wang Jinzhu |
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