CN103032913B - Power plant condensation heat recovery heat supply system taking circular cooling water as heat supply network water - Google Patents
Power plant condensation heat recovery heat supply system taking circular cooling water as heat supply network water Download PDFInfo
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- CN103032913B CN103032913B CN201210583005.2A CN201210583005A CN103032913B CN 103032913 B CN103032913 B CN 103032913B CN 201210583005 A CN201210583005 A CN 201210583005A CN 103032913 B CN103032913 B CN 103032913B
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Abstract
The invention relates to a heat recovery system, and discloses a power plant condensation heat recovery heat supply system taking circular cooling water as heat supply network water. The power plant condensation heat recovery heat supply system comprises a steam pipeline and a heat supply pipeline, wherein the heat supplying pipeline is used for absorbing heat through an absorption heat pump; and water of which the temperature rises enters a primary heat supply network. The power plant condensation heat recovery heat supply system is characterized by further comprising a circular cooling water pipeline, wherein heat supply network return water enters the circular cooling water pipeline for serving as cooling water after heat release through the absorption heat pump; and the circular cooling water pipeline is used for making cooling water in a circular cooling water pond enter a condenser through a circular cooling water pump, and is communicated with a heat supply pipeline. Through the heat-exchanging way of the absorption heat pump, condensation heat recovery is realized, condensation heat of a power plant and residual heat in circular cooling water are recovered, circular cooling water is taken as heat supply network water, water energy is saved, and heat energy consumption is lowered; and the power plant condensation heat recovery heat supply system has the advantages of high heat energy recovery utilization ratio, energy saving, emission reduction and the like.
Description
Technical field
The present invention relates to a kind of waste heat of power plant heat reclamation device, particularly relate to a kind of power plant heat of condensation and reclaim heating system.
Background technology
Thermal power plant condensation heat enters air by cooling tower or Air-Cooling Island and forms huge heat-energy losses, is the low main cause of thermal power plant energy use efficiency, not only causes the waste of large energy and water or electricity, also seriously pollutes air simultaneously.Thermal power plant condensation heat is emptying, is the ubiquitous problem in China and even the world, and being waste, is also helpless.But along with the development of heat pump techniques, the particularly appearance of large high-temperature water resource heat pump, makes the recovery of generating set condensation waste heat to become possibility.
Summary of the invention
The present invention is directed in prior art the problem that the used heat that condenses is difficult to Collection and utilization, provide a kind of heat pump techniques that adopts and reclaim the hot heating system of power plant condensation.
In order to solve the problems of the technologies described above, the present invention is solved by following technical proposals: a kind of power plant heat of condensation utilizing recirculated cooling water to do hot net water reclaims heating system, comprise steam pipework, bleed steam pipework, heat supplying pipeline, described heat supplying pipeline absorbs heat through absorption heat pump, water temperature enters a heat supply network after raising, it is characterized in that: also comprise recirculated cooling water pipeline, heat supply network backwater enters circulating cooling water pipe road and uses as cooling water after absorption heat pump heat release; Described recirculated cooling water pipeline makes the cooling water in circulating cooling pond enter condenser through circulating cooling water pump, and then is communicated with heat supplying pipeline.Heat supplying pipeline is communicated with recirculated cooling water pipeline, utilizes recirculated cooling water to do hot net water, while saving Water Energy, improves heat utilization rate, reduces thermal energy consumption.By absorption heat pump, the waste heat in heat supply network water return pipeline is passed to heat supplying pipeline, improve the utilization rate of heat energy, reach energy-saving and emission-reduction object.
Further, described recirculated cooling water pipeline is through condenser, and make the cooling water through condenser absorb heat, water temperature raises.Condenser is now used for adding hot cooling water, tentatively improves cooling water temperature, for further heating, as heat supply network water.
As preferably, the present invention also comprises recirculated cooling water pipeline for subsequent use, described recirculated cooling water pipeline for subsequent use makes the cooling water in circulating cooling pond get back to circulating cooling pond after circulating cooling water pump, condenser, control valve b, cooling tower heat release, forms loop.Heat supply network or absorption heat pump working properly time control valve b close; When heat supply network or absorption heat pump break down, control valve b opens, and recirculated cooling water walks recirculated cooling water pipeline for subsequent use.
As preferably, the present invention also comprises bleed steam pipework, and described bleed steam pipework connects steam turbine and absorption heat pump, and as the driving heat source of absorption heat pump, steam turbine is bled and become condensate water by condensation after absorption heat pump heat release and discharge.Described bleed steam pipework is also provided with adjusting control valve, between steam turbine and absorption heat pump, for the driving heat source flow of regulable control absorption heat pump, and then regulable control heat supply temperature.
As preferably, the exhaust steam that described steam pipework produces after steam turbine acting is delivered to condenser, and exhaust steam becomes solidifying water after through condenser heat energy being passed to the cooling water in recirculated cooling water pipeline and discharges.
As preferably, described bleed steam pipework is provided with control valve a.Reconcile the size that control valve a can control steam flow in bleed steam pipework, thus control the heat power size of absorption heat pump, and then regulable control heat supply temperature.During absorption type heat air pump inoperative, closed control valve a.
As preferably, described recirculated cooling water pipeline for subsequent use is provided with control valve b, before being positioned at cooling tower.Heat supply network and absorption heat pump working properly time, closed control valve b, recirculated cooling water pipeline for subsequent use does not work; When heat supply network or absorption heat pump break down, control valve b opens, and recirculated cooling water walks recirculated cooling water pipeline for subsequent use.
As preferably, described heat supplying pipeline is provided with control valve c, and when described control valve c opens, heat supplying pipeline is communicated with recirculated cooling water pipeline for subsequent use with recirculated cooling water pipeline; When described control valve c closes, heat supplying pipeline is closed.When heat supply network or absorption heat pump cisco unity malfunction, closed control valve c, then stop heat supplying pipeline work, simultaneously opening controlling valve b, ensures normal power generation.
The present invention realizes solidifying recuperation of heat by the heat exchange method of absorption heat pump, reclaims the waste heat in power plant's condensation heat, recirculated cooling water, utilizes recirculated cooling water to do hot net water, while saving Water Energy, reduce thermal energy consumption, there is heat energy recycle rate high, the advantages such as energy-saving and emission-reduction.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention 1.
Wherein: 1-steam pipework, 2-recirculated cooling water pipeline, 3-bleed steam pipework, 4-recirculated cooling water pipeline for subsequent use, 5-heat supplying pipeline, 7-absorption heat pump, 11-steam turbine, 12-condenser, 21-coolant circulation pump, 22-circulating cooling pond, 23-cooling tower, 24-control valve b, 31-control valve a, 51-control valve c.
Detailed description of the invention
Below in conjunction with accompanying drawing 1 and specific embodiment, the present invention is described in further detail:
The power plant heat of condensation utilizing recirculated cooling water to do hot net water reclaims a heating system, as shown in Figure 1, comprises steam pipework 1, recirculated cooling water pipeline 2, bleed steam pipework 3, recirculated cooling water pipeline 4 for subsequent use and heat supplying pipeline 5.
The steam of described steam pipework 1 is sent into steam turbine 11 and is done work, and the exhaust steam of discharging after steam turbine 11 does work is delivered to condenser 12, and exhaust steam condenses into water after through condenser 12 heat energy being passed to the cooling water in recirculated cooling water pipeline 2 and discharges.
Described recirculated cooling water pipeline 2, heat supply network backwater enters circulating cooling water pipe road 2 and uses as cooling water after absorption heat pump 7 heat release; Described recirculated cooling water pipeline 2 makes the cooling water in circulating cooling pond 22 enter condenser 12 through circulating cooling water pump 21, and then is communicated with heat supplying pipeline 5.
Heat supply network backwater in described heat supplying pipeline 5 enters recirculated cooling water pond 22 after absorption heat pump 7 heat release cooling, after recirculated cooling water enters condenser 12 intensification from circulating cooling pond 22, by the road 2, circulating cooling water pump 21, enter absorption heat pump 7 and again absorb heat, and enter a heat supply network, form loop.Heat supplying pipeline 5 is communicated with recirculated cooling water pipeline 2, utilizes recirculated cooling water to do hot net water, while saving Water Energy, improves heat utilization rate, reduces thermal energy consumption.By absorption heat pump, the waste heat in heat supply network water return pipeline is passed to heat supplying pipeline, improve the utilization rate of heat energy, reach energy-saving and emission-reduction object.
Described heat supplying pipeline 5 is provided with control valve c51, heat supply network and absorption heat pump working properly time, described control valve is opened, and heat supplying pipeline 5 is communicated with recirculated cooling water pipeline 2; When heat supply network or absorption heat pump break down, described control valve c51 closes, and heat supplying pipeline 5 and recirculated cooling water pipeline 2 disconnect, namely when described control valve c51 closes, heat supplying pipeline is closed, no longer work on, simultaneously opening controlling valve b24, recirculated cooling water walks recirculated cooling water pipeline 4 for subsequent use.
Described recirculated cooling water pipeline 4 for subsequent use makes the cooling water in circulating cooling pond 22 get back to circulating cooling pond 22 after circulating cooling water pump 21, condenser 12, cooling tower 23, forms loop.Described recirculated cooling water pipeline 4 for subsequent use is provided with control valve b24, before being positioned at cooling tower 23.Heat supply network and absorption heat pump working properly time, closed control valve b24, recirculated cooling water pipeline 4 for subsequent use does not work; When heat supply network or absorption heat pump break down, opening controlling valve b24, cools cooling water by recirculated cooling water pipeline 4 for subsequent use.Ensure normal power generation.
Described bleed steam pipework 3 connects steam turbine 11 and absorption heat pump 7, as the driving heat source of absorption heat pump 7, steam turbine draw gas by condensation after absorption heat pump 7 heat release become condensate water discharge.Described bleed steam pipework 3 is also provided with control valve 31, between steam turbine 11 and absorption heat pump 7, without the need to closed control valve during heat supply 31.Also the size can opened by adjusting control valve 31, is controlled the steam flow size entering absorption heat pump 7, and then controls heat supply network water temperature.
In actual use, the temperature of heat supply network backwater is about 40-55 DEG C, heat supply network backwater is after absorption heat pump 7 heat release, water temperature is reduced to about 30 DEG C and enters circulating cooling pond 22, recirculated cooling water improves temperature to about 40 DEG C in the heat absorption of condenser 12 place behind circulating cooling pond 22 and circulating cooling water pump 21, absorb heat further through absorption heat pump 7, temperature can reach 80-88 DEG C, and then enters a heat supply network heat supply.
Reclaim heating system to the power plant provided by the present invention heat of condensation to be above described in detail, for one of ordinary skill in the art, according to the thought of the embodiment of the present invention, all will change in specific embodiments and applications, respective change can be done according to actual needs.In sum, this description should not be construed as limitation of the present invention.
Claims (5)
1. the power plant heat of condensation utilizing recirculated cooling water to do hot net water reclaims heating system, comprise steam pipework (1), heat supplying pipeline (5), described heat supplying pipeline (5) absorbs heat through absorption heat pump (7), water temperature enters a heat supply network after raising, and it is characterized in that: heat supply network backwater enters recirculated cooling water pond (22) and uses as cooling water after absorption heat pump (7) heat release, described recirculated cooling water pipeline (2) makes the cooling water in circulating cooling pond (22) enter condenser (12) the absorption heat of condensation through circulating cooling water pump (21), a heat supply network is entered by heat supplying pipeline (5) again after absorption heat pump (7) heats up, also comprise recirculated cooling water pipeline (4) for subsequent use, described recirculated cooling water pipeline (4) for subsequent use makes the cooling water in circulating cooling pond (22) through circulating cooling water pump (21), condenser (12), circulating cooling pond (22) is got back to after cooling tower (23) heat release, form loop, described recirculated cooling water pipeline (4) for subsequent use is provided with control valve b (24), before being positioned at cooling tower (23), described heat supplying pipeline (5) is provided with control valve c (51), when described control valve c (51) is opened, heat supplying pipeline (5) is communicated with recirculated cooling water pipeline (4) for subsequent use with recirculated cooling water pipeline (2), when repair and maintenance of heat-supply system, described control valve c (51) is closed, opening control valve b (24) makes the cooling water in circulating cooling pond (22) get back to circulating cooling pond (22) after circulating cooling water pump (21), condenser (12), control valve b (24), cooling tower (23) heat release, forms loop.
2. the power plant according to claim 1 heat of condensation reclaims heating system, it is characterized in that: described recirculated cooling water pipeline (2) is reverse through condenser (12), make the cooling water through condenser (12) absorb heat, water temperature raises.
3. the power plant according to claim 1 heat of condensation reclaims heating system, it is characterized in that: the exhaust steam that described steam pipework (1) produces after steam turbine (11) acting is delivered to condenser (12), exhaust steam is solidifying water discharge after through condenser (12) heat energy being passed to the cooling water in recirculated cooling water pipeline (2).
4. the power plant according to claim 1 heat of condensation reclaims heating system, it is characterized in that: also comprise bleed steam pipework (3), described bleed steam pipework (3) connects steam turbine (11) and absorption heat pump (7), and steam turbine is bled and become condensate water discharge by condensation after absorption heat pump (7) heat release.
5. the power plant according to claim 4 heat of condensation reclaims heating system, it is characterized in that: described bleed steam pipework (3) is provided with control valve a (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210583005.2A CN103032913B (en) | 2012-12-25 | 2012-12-25 | Power plant condensation heat recovery heat supply system taking circular cooling water as heat supply network water |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210583005.2A CN103032913B (en) | 2012-12-25 | 2012-12-25 | Power plant condensation heat recovery heat supply system taking circular cooling water as heat supply network water |
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| CN103032913A CN103032913A (en) | 2013-04-10 |
| CN103032913B true CN103032913B (en) | 2015-05-13 |
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| CN201210583005.2A Expired - Fee Related CN103032913B (en) | 2012-12-25 | 2012-12-25 | Power plant condensation heat recovery heat supply system taking circular cooling water as heat supply network water |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104110975B (en) * | 2014-07-18 | 2016-07-13 | 烟台荏原空调设备有限公司 | A kind of industrial waste water disposal device |
| CN106765445A (en) * | 2016-12-27 | 2017-05-31 | 梅河口市阜康酒精有限责任公司 | A kind of thinning process waste recycling system |
| CN206669847U (en) * | 2017-03-29 | 2017-11-24 | 赫普热力发展有限公司 | Steam power plant provides multiple forms of energy to complement each other in region energy micro-grid system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1916506A (en) * | 2006-09-06 | 2007-02-21 | 清华大学 | Heating system by using circulating cooling water of power plant as low order heat source for heat pump |
| CN202303595U (en) * | 2011-11-02 | 2012-07-04 | 同方节能工程技术有限公司 | Low-vacuum heating device for thermal power plant |
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2012
- 2012-12-25 CN CN201210583005.2A patent/CN103032913B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1916506A (en) * | 2006-09-06 | 2007-02-21 | 清华大学 | Heating system by using circulating cooling water of power plant as low order heat source for heat pump |
| CN202303595U (en) * | 2011-11-02 | 2012-07-04 | 同方节能工程技术有限公司 | Low-vacuum heating device for thermal power plant |
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| CN103032913A (en) | 2013-04-10 |
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Inventor after: Li Tongqiang Inventor after: Wang Cong Inventor after: He Wen Inventor before: Li Tongqiang |
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