CN201852360U - Heat pump system for recycling cooling water waste heat of power plant - Google Patents
Heat pump system for recycling cooling water waste heat of power plant Download PDFInfo
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- CN201852360U CN201852360U CN 201020601978 CN201020601978U CN201852360U CN 201852360 U CN201852360 U CN 201852360U CN 201020601978 CN201020601978 CN 201020601978 CN 201020601978 U CN201020601978 U CN 201020601978U CN 201852360 U CN201852360 U CN 201852360U
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- 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
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Abstract
The utility model relates to a heat pump system for recycling cooling water waste heat of a power plant, which comprises a gas condenser, an output end of the gas condenser is connected with a cooling water circulation water pump, an output end of the circulation water pump is connected with a cooling water-intake pump and a spraying device arranged in a cooling tower in parallel, a water recycling tank is arranged below the spraying device, an output end of the water intake pump is connected with shell and tube evaporators in a high-temperature heat pump unit and a low-temperature heat pump unit in series, an output end of an evaporator in the low-temperature heat pump unit is connected with the water recycling tank on which a water recycling pipeline connected with the gas condenser is arranged; a shell and tube condenser is respectively arranged in the high-temperature heat pump unit and the low-temperature heat pump unit; the shell of the evaporator is connected with the shell of the condenser through two pipelines in the same heat pump unit, a compressor is arranged on one pipeline while an expansion valve is arranged on the other pipeline, refrigerant is filled in the evaporator and the condenser; both ends of the pipeline in the condenser are respectively connected with a water inlet and a water outlet of a heat supply system in a corresponding way.
Description
Technical field
The utility model relates to a kind of heat pump that reclaims used heat, particularly about a kind of heat pump of direct recovery power plant cooling water used heat.
Background technology
In recent years, the power plant construction in the coal industry has been obtained tremendous development.Coal mining enterprise participates in all kinds of near coal-mine power plant of construction, and especially coal-fired near coal-mine power plant quantity constantly increases; The comprehensive utilization of all kinds of resources such as gangue, coal slime makes the development of power plant obtain further consolidation; Gas electricity pace of construction based on coal mine methane drainage and utilization project is accelerated.
Learn according to the statistics in the China Power science and technology net, by the year ends 2006, seat surplus the power plant of coal industry gangue, coal slime comprehensive utilization of resources amounts to 200, about 4,000,000 KW of total installation of generating capacity.Coal enterprise has built up coal-burning power plant 30 families, total installation of generating capacity 6,400,000 KW.23 families of wherein near coal-mine power plant, installed capacity 1,950,000 KW, 5 families of non-near coal-mine power plant, installed capacity 4,450,000 KW.Building coal-burning power plant 15 families, total installation of generating capacity 1,600 ten thousand KW.11 families of wherein near coal-mine power plant, installed capacity 5,800,000 KW, 4 families of non-near coal-mine power plant, installed capacity 1,100 ten thousand KW.According to above statistics, the power plant of coal industry gangue, coal slime comprehensive utilization of resources and coal-burning power plant's total installation of generating capacity are 2,640 ten thousand KW (being 26400MW).The recirculated cooling water of general 1 600MW condensing-type generating set is about 65000t/h, and the recirculated cooling water of 1 300MW condensing-type generating set is about 30000t/h, and power plant's cool cycles water yield is pressed 100m
3/ MWh estimation, the various power plant cooling water circular flows of coal industry are 2640000m so
3/ h.The power plant cooling water water temperature is on average by 20 ℃ of calculating, and the coolant-temperature gage behind the extraction heat is 10 ℃, and then the heat that can extract from power plant cooling water is 30703200KW.Annual extractible heat is 95500 * 10,400 ten thousand kilojoules, if these used heat resources have half to be utilized, i.e. and 47750 * 10,400 ten thousand kilojoules.So above extractible heat can be amounted to into 1,629 ten thousand tons of/year marks of mark coal coal, is equivalent to reduce CO
2Discharge 4,235 ten thousand tons/year.This shows that extracting heat from power plant cooling water not only can energy savings, and has the advantage that reduces environmental pollution.
Summary of the invention
At the problems referred to above, the purpose of this utility model provides the heat pump that a kind of Waste Heat Recovery rate height, few being used to of power plant cooling water evaporation loss reclaim power plant cooling water used heat.
For achieving the above object, the utility model is taked following technical scheme: a kind of heat pump that reclaims power plant cooling water used heat, it is characterized in that: it comprises the condenser that is arranged in power plant's electricity generation system, the output of described condenser connects a cooling water cycle water pump, the described cooling water cycle water delivery side of pump cooling water water intaking pump and that is connected in parallel is arranged on spray equipment in power plant's cooling tower, is provided with a back pool in the described power plant cooling tower of described spray equipment below; Described cooling water water intaking delivery side of pump be connected in series successively shell and tube evaporator in the high temperature heat pump unit and the shell and tube evaporator in the hot pump in low temp unit, the output of the described shell and tube evaporator in the described hot pump in low temp unit connects described back pool, and described back pool is provided with the water return pipeline of the described condenser input of a connection; Also be respectively arranged with a shell and tube condenser in described high temperature heat pump unit and the hot pump in low temp unit; The housing of the described shell and tube evaporator in the same described source pump is communicated with by two pipelines with the housing of described shell and tube condenser, and wherein a described pipeline is provided with a compressor, and another described pipeline is provided with an expansion valve; The inside of each described shell and tube evaporator and each described shell and tube condenser is filled with refrigeration working medium between housing and the pipeline; Pipe ends in each described shell and tube condenser passes described shell and tube condenser, corresponding respectively water inlet and the delivery port that connects a heating system.
The leaving water temperature that described condenser in the described high temperature heat pump unit offers described heating system is 70 ℃～80 ℃, and described heating system is a radiator.
The leaving water temperature that described condenser in the described hot pump in low temp unit offers described heating system is 45 ℃～55 ℃, and described heating system is an air-conditioner.
Described compressor in described high temperature heat pump unit and the hot pump in low temp unit is screw compressor.
The utility model is owing to take above technical scheme, it has the following advantages: 1, the cooling water that the utility model will flow out in the condenser from power plant's electricity generation system is successively lowered the temperature after the heat exchange through high temperature heat pump unit and hot pump in low temp unit, again supply with power plant's electricity generation system by the back pool in power plant's cooling tower, therefore, the reusable edible cooling water, and can reduce the evaporation loss of power plant cooling water, effectively utilize the used heat in the cooling water, for the mining area produces, life and office provide institute's calorific requirement, thereby substitute coal-burning boiler, realize the energy-saving and emission-reduction of enterprise and reduce operating cost etc.2, evaporimeter and the condenser that is provided with in the utility model high temperature heat pump unit and the hot pump in low temp unit all adopts the shell-tube type structure, be filled with refrigeration working medium in the housing, connect by two pipelines between evaporimeter and the condenser, article one, pipeline is provided with a compressor, another pipeline is provided with an expansion valve, therefore, and can circulating by refrigeration working medium, be the water for cooling in the evaporator pipeline, for the water in the condenser tubes provides heat.3, the utility model is because successively by a cooling water cycle water pump and power plant cooling water water intaking pump, the power plant cooling water that will flow out from power plant's electricity generation system directly pumps into high temperature heat pump unit and hot pump in low temp unit, therefore, the entry water temperature height of source pump, unit operation efficient height.4, the utility model is owing to the inlet of pump that power plant cooling water is fetched water is directly connected to the cooling water cycle water delivery side of pump, and cooling water cycle water delivery side of pump pressure is 0.15～0.2MPa, therefore, can save the hydraulic pressure of 0.15～0.2MPa for the power plant cooling water pump of fetching water, therefore, make full use of the pressure of cooling water cycle water pump, reduced the platform number of water pump operation, greatly reduced operating cost.The utility model structural design is ingenious, and is easy to operate, and Waste Heat Recovery rate height can be widely used in the removal process of power plant cooling water used heat.
Description of drawings
Fig. 1 is the utility model structural representation
The specific embodiment
Below in conjunction with drawings and Examples, the utility model is described in detail.
As shown in Figure 1, the utility model comprises and being arranged in power plant's electricity generation system 1, the condenser 2 of recirculated cooling water is provided, the output of condenser 2 connects a cooling water cycle water pump 3, the output of cooling water cycle water pump 3 connects cooling water water intaking pump 4 and respectively by two pipelines and is arranged on spray equipment 6 in power plant's cooling tower 5, is provided with a back pool 7 in power plant's cooling tower 5 of spray equipment 6 belows.The output of cooling water water intaking pump 4 be connected in series successively a high temperature heat pump unit 8 and a hot pump in low temp unit 9, the output of hot pump in low temp unit 9 connects the back pool 7 in power plant's cooling tower 5.Back pool 7 is provided with the water return pipeline 10 of a connection condenser 2 inputs.Simultaneously, high temperature heat pump unit 8 also is connected other heating systems, for example radiator or air-conditioning etc. respectively with hot pump in low temp unit 9.
Be provided with an evaporimeter 81 and a condenser 82 in the high temperature heat pump unit 8, be provided with an evaporimeter 91 and a condenser 92 in the hot pump in low temp unit 9.Two evaporimeters 81,91 and two condensers 82,92 all adopt the shell-tube type structure.The output of cooling water water intaking pump 4 connects the evaporation and heat-exchange pipeline in evaporimeter 81 housings in the high temperature heat pump unit 8, the output of the evaporation and heat-exchange pipeline in evaporimeter 81 housings connects the evaporation and heat-exchange pipeline in evaporimeter 91 housings in the hot pump in low temp unit 9, and the output of the evaporation and heat-exchange pipeline in evaporimeter 91 housings connects the back pool 7 in power plant's cooling tower 5.
Be filled with refrigeration working medium between evaporimeter 81 housings in the high temperature heat pump unit 8 and the evaporation and heat-exchange pipeline in it, refrigeration working medium carries out heat exchange in evaporimeter 81 after, the pipeline that has compressor 83 that is provided with on the housing by evaporimeter 81 connects in the housing of condenser 82, after the condensing heat-exchange pipeline that refrigeration working medium is provided with in it in condenser 82 housings carries out heat exchange, connect back in the housing of evaporimeter 81 by the pipeline that has expansion valve 84 that is provided with on condenser 82 housings.In the condensing heat-exchange pipeline in condenser 82 housings recirculated water is housed, the two ends of condensing heat-exchange pipeline pass condenser 82 housings and connect other heating systems, so that heat to be provided.
In the hot pump in low temp unit 9, the structure of evaporimeter 91 and condenser 92, with and the annexation of the pipeline that has compressor 93 of interior setting and the pipeline that has expansion valve 94 identical with structural relation in the high temperature heat pump unit 8, this no longer repeat specification again.
In the foregoing description, the leaving water temperature that the condenser 82 in the high temperature heat pump unit 8 offers user side is 70 ℃～80 ℃, and the heating system that high temperature heat pump unit 8 connects can be traditional radiator; The leaving water temperature that condenser 92 in the hot pump in low temp unit 9 offers user side is 45 ℃～55 ℃, and the heating system that hot pump in low temp unit 9 connects can be air-conditioner or other hot users.
The course of work of the present utility model is as follows.
The part of the cooling water that comes out from the condenser 2 of power plant's electricity generation system 1 enters high temperature heat pump unit 8 by power plant cooling water water intaking pump 4, enter hot pump in low temp unit 9 in the evaporimeter 81 in high temperature heat pump unit 8 with after the refrigeration working medium heat exchange, in the evaporimeter 91 of hot pump in low temp unit 9, proceed heat exchange with refrigeration working medium, flow into the back pool 7 of power plant cooling tower 5 bottoms after the two-stage heat exchange, after another part power plant cooling water sprays cooling by the spray equipment 6 that is provided with in power plant's cooling tower 5, fall into the back pool 7 of power plant's cooling tower 5 bottoms.Compile in the back pool 7 through behind the cooling water after cooling, turn back in the condenser 1,, finish the heat source side circulation to be used for continuing the steam after power plant's electricity generation system cooling generating by water return pipeline 10.
In high temperature heat pump unit 8, after refrigeration working medium in evaporimeter 81 housings absorbs heat, enter compressor 83 by pipeline, compressed machine 83 compressions become high temperature and high pressure gas, high temperature and high pressure gas enters by pipeline and carries out heat release in the condenser 84, becomes low-temp low-pressure liquid by the expansion valve on the pipeline 84 then, Returning evaporimeter 81, the thermal cycle of refrigeration working medium is finished in the power plant cooling water heat exchange that continues and enter evaporimeter 81.Simultaneously, the water source in the condenser 84 in the condensing heat-exchange pipelines obtains behind the heat to radiator heating provides heat, and after heat was provided, return condensed device 84 continued to absorb heat, finished the heat circulation of user side.
In hot pump in low temp unit 9, after refrigeration working medium in evaporimeter 91 housings absorbs heat, enter compressor 93 by pipeline, compressed machine 93 compressions become high temperature and high pressure gas, high temperature and high pressure gas enters by pipeline and carries out heat release in the condenser 94, becomes low-temp low-pressure liquid by the expansion valve on the pipeline 94 then, Returning evaporimeter 91, the thermal cycle of refrigeration working medium is finished in the power plant cooling water heat exchange that continues and enter evaporimeter 91.Simultaneously, the water source in the condenser 94 in the condensing heat-exchange pipelines obtains behind the heat to provide origin of heat for air-conditioning heating, domestic hot-water, well head are antifreeze etc., and the water source is after the terminal heat radiation of user, and return condensed device 94 continues to absorb heat, finishes the heat circulation of user side.
In the foregoing description, the compressor 83,93 in high temperature heat pump unit 8 and the hot pump in low temp unit 9 all adopts screw compressor; Screw compressor is driven by electric energy, and then makes high temperature heat pump unit 8 and hot pump in low temp unit 9 start operation.
The various embodiments described above only are used to illustrate the utility model; wherein the structure of each parts, connected mode etc. all can change to some extent; every equivalents of carrying out on the basis of technical solutions of the utility model and improvement all should not got rid of outside protection domain of the present utility model.
Claims (5)
1. heat pump that reclaims power plant cooling water used heat, it is characterized in that: it comprises the condenser that is arranged in power plant's electricity generation system, the output of described condenser connects a cooling water cycle water pump, the described cooling water cycle water delivery side of pump cooling water water intaking pump and that is connected in parallel is arranged on spray equipment in power plant's cooling tower, is provided with a back pool in the described power plant cooling tower of described spray equipment below; Described cooling water water intaking delivery side of pump be connected in series successively shell and tube evaporator in the high temperature heat pump unit and the shell and tube evaporator in the hot pump in low temp unit, the output of the described shell and tube evaporator in the described hot pump in low temp unit connects described back pool, and described back pool is provided with the water return pipeline of the described condenser input of a connection;
Also be respectively arranged with a shell and tube condenser in described high temperature heat pump unit and the hot pump in low temp unit; The housing of the described shell and tube evaporator in the same described source pump is communicated with by two pipelines with the housing of described shell and tube condenser, and wherein a described pipeline is provided with a compressor, and another described pipeline is provided with an expansion valve;
The inside of each described shell and tube evaporator and each described shell and tube condenser is filled with refrigeration working medium between housing and the pipeline;
Pipe ends in each described shell and tube condenser passes described shell and tube condenser, corresponding respectively water inlet and the delivery port that connects a heating system.
2. a kind of heat pump that reclaims power plant cooling water used heat as claimed in claim 1 is characterized in that: the leaving water temperature that the described condenser in the described high temperature heat pump unit offers described heating system is 70 ℃～80 ℃, and described heating system is a radiator.
3. a kind of heat pump that reclaims power plant cooling water used heat as claimed in claim 1, it is characterized in that: the leaving water temperature that the described condenser in the described hot pump in low temp unit offers described heating system is 45 ℃～55 ℃, and described heating system is an air-conditioner.
4. a kind of heat pump that reclaims power plant cooling water used heat as claimed in claim 2, it is characterized in that: the leaving water temperature that the described condenser in the described hot pump in low temp unit offers described heating system is 45 ℃～55 ℃, and described heating system is an air-conditioner.
5. as claim 1 or 2 or 3 or 4 described a kind of heat pumps that reclaim power plant cooling water used heat, it is characterized in that: the described compressor in described high temperature heat pump unit and the hot pump in low temp unit is screw compressor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020601978 CN201852360U (en) | 2010-11-09 | 2010-11-09 | Heat pump system for recycling cooling water waste heat of power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020601978 CN201852360U (en) | 2010-11-09 | 2010-11-09 | Heat pump system for recycling cooling water waste heat of power plant |
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| Publication Number | Publication Date |
|---|---|
| CN201852360U true CN201852360U (en) | 2011-06-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020601978 Expired - Fee Related CN201852360U (en) | 2010-11-09 | 2010-11-09 | Heat pump system for recycling cooling water waste heat of power plant |
Country Status (1)
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|---|---|
| CN (1) | CN201852360U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102410665A (en) * | 2011-11-22 | 2012-04-11 | 北京矿大节能科技有限公司 | Waste heat recovery and utilization system for coal mine air compressor |
| CN102778080A (en) * | 2012-02-20 | 2012-11-14 | 苟仲武 | Waste residual heat recycling system |
| CN102914085A (en) * | 2012-11-06 | 2013-02-06 | 大连交通大学 | Cooling water waste heat recycling system |
| CN103256756A (en) * | 2013-05-31 | 2013-08-21 | 锦西天然气化工有限责任公司 | Chemical industry device circulating water cooling, low-grade heat energy utilization and water saving system and method |
| CN103743287A (en) * | 2013-11-26 | 2014-04-23 | 中国电力工程顾问集团中南电力设计院 | High-level water collection cooling water circulation system with rear-mounted water pump and circulation method |
| CN103807999A (en) * | 2014-03-05 | 2014-05-21 | 余德林 | Heat energy recovering system |
| CN103822340A (en) * | 2014-03-05 | 2014-05-28 | 余德林 | Heat energy recovering integrated box |
| CN107843125A (en) * | 2017-10-16 | 2018-03-27 | 中国能源建设集团广东省电力设计研究院有限公司 | Distributed busbar protection recirculating cooling water system |
| CN109579359A (en) * | 2019-01-14 | 2019-04-05 | 重庆大学 | A kind of heat pump unit cooling water parallel connection recuperation of heat utilizes system |
-
2010
- 2010-11-09 CN CN 201020601978 patent/CN201852360U/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102410665A (en) * | 2011-11-22 | 2012-04-11 | 北京矿大节能科技有限公司 | Waste heat recovery and utilization system for coal mine air compressor |
| CN102778080A (en) * | 2012-02-20 | 2012-11-14 | 苟仲武 | Waste residual heat recycling system |
| CN102914085B (en) * | 2012-11-06 | 2014-08-27 | 大连交通大学 | Cooling water waste heat recycling system |
| CN102914085A (en) * | 2012-11-06 | 2013-02-06 | 大连交通大学 | Cooling water waste heat recycling system |
| CN103256756A (en) * | 2013-05-31 | 2013-08-21 | 锦西天然气化工有限责任公司 | Chemical industry device circulating water cooling, low-grade heat energy utilization and water saving system and method |
| CN103743287A (en) * | 2013-11-26 | 2014-04-23 | 中国电力工程顾问集团中南电力设计院 | High-level water collection cooling water circulation system with rear-mounted water pump and circulation method |
| CN103743287B (en) * | 2013-11-26 | 2016-07-20 | 中国电力工程顾问集团中南电力设计院有限公司 | The rearmounted high position of water pump receives water cooling water recirculation system and round-robin method |
| CN103822340A (en) * | 2014-03-05 | 2014-05-28 | 余德林 | Heat energy recovering integrated box |
| CN103807999A (en) * | 2014-03-05 | 2014-05-21 | 余德林 | Heat energy recovering system |
| CN103807999B (en) * | 2014-03-05 | 2017-01-11 | 余德林 | Heat energy recovering system |
| CN107843125A (en) * | 2017-10-16 | 2018-03-27 | 中国能源建设集团广东省电力设计研究院有限公司 | Distributed busbar protection recirculating cooling water system |
| CN107843125B (en) * | 2017-10-16 | 2019-09-13 | 中国能源建设集团广东省电力设计研究院有限公司 | Distributed busbar protection recirculating cooling water system |
| CN109579359A (en) * | 2019-01-14 | 2019-04-05 | 重庆大学 | A kind of heat pump unit cooling water parallel connection recuperation of heat utilizes system |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110601 Termination date: 20171109 |
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| CF01 | Termination of patent right due to non-payment of annual fee |