CN103032913A - 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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- CN103032913A CN103032913A CN2012105830052A CN201210583005A CN103032913A CN 103032913 A CN103032913 A CN 103032913A CN 2012105830052 A CN2012105830052 A CN 2012105830052A CN 201210583005 A CN201210583005 A CN 201210583005A CN 103032913 A CN103032913 A CN 103032913A
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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 power plant waste heat heat reclamation device, relate in particular to a kind of power plant heat of condensation and reclaim heating system.
Background technology
The thermal power plant condensation heat enters atmosphere 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, has also seriously polluted atmosphere simultaneously.The thermal power plant condensation heat is emptying, is the ubiquitous problem in China and even the world, is waste, also is helpless.Yet along with the development of heat pump techniques, the particularly appearance of large high-temperature water resource heat pump will be so that the recovery of generating set condensation waste heat will become possibility.
Summary of the invention
The present invention is directed to the used heat that condenses in the prior art and be difficult to reclaim and the problem of utilizing, provide a kind of employing heat pump techniques to 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 of 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 heat supply network one time after raising, it is characterized in that: also comprise the recirculated cooling water pipeline, enter the circulating cooling water pipe road after the heat release of heat supply network backwater process absorption heat pump and use as cooling water; Described recirculated cooling water pipeline makes the cooling water in circulating cooling pond enter condenser through the circulating cooling water pump, and then is communicated with heat supplying pipeline.Heat supplying pipeline is communicated with the recirculated cooling water pipeline, utilizes recirculated cooling water to do hot net water, in the conserve water energy, improves heat utilization rate, reduces thermal energy consumption.By absorption heat pump the waste heat in the heat supply network water return pipeline is passed to heat supplying pipeline, improved the utilization rate of heat energy, reach the energy-saving and emission-reduction purpose.
Further, described recirculated cooling water pipeline makes the cooling water through condenser absorb heat through condenser, and water temperature raises.The condenser of this moment is used for heating and cooling water, tentatively improves cooling water temperature, is used for further heating, as the 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 is got back to the circulating cooling pond after making the cooling water in circulating cooling pond pass through circulating cooling water pump, condenser, control valve b, cooling tower heat release, forms the loop.Control valve b closed when heat supply network or absorption heat pump were working properly; Control valve b opens when heat supply network or absorption heat pump break down, and recirculated cooling water is walked 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 the absorption heat pump heat release and discharge.Described bleed steam pipework also is provided with adjusting control valve, between steam turbine and absorption heat pump, is used for regulating the driving heat source flow of control absorption heat pump, and then regulates the control heat supply temperature.
As preferably, the exhaust steam that described steam pipework produces after through the steam turbine acting is delivered to condenser, and exhaust steam becomes thermal energy transfer into solidifying water after to the cooling water in the recirculated cooling water pipeline through condenser 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 the bleed steam pipework, thus the heat power size of control absorption heat pump, and then regulate the control heat supply temperature.During the 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, is positioned at before the cooling tower.When heat supply network and absorption heat pump are working properly, closed control valve b, recirculated cooling water pipeline for subsequent use is not worked; When heat supply network or absorption heat pump broke down, control valve b opened, and recirculated cooling water is walked recirculated cooling water pipeline for subsequent use.
As preferably, described heat supplying pipeline is provided with control valve c, and heat supplying pipeline was communicated with recirculated cooling water pipeline and recirculated cooling water pipeline for subsequent use when described control valve c opened; Heat supplying pipeline was closed when described control valve c closed.When heat supply network or absorption heat pump cisco unity malfunction, closed control valve c then stops heat supplying pipeline work, and opening controlling valve b guarantees normal power generation simultaneously.
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, the recirculated cooling water, utilizes recirculated cooling water to do hot net water, in the conserve water energy, reduce thermal energy consumption, have the heat energy recycle rate high, the advantages such as energy-saving and emission-reduction.
Description of drawings
Fig. 1 is the structural representation of the embodiment of the 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.
The specific embodiment
Below in conjunction with accompanying drawing 1 and specific embodiment the present invention is described in further detail:
A kind of power plant heat of condensation of utilizing recirculated cooling water to do hot net water reclaims 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 acting, and the exhaust steam of discharging after steam turbine 11 actings is delivered to condenser 12, and exhaust steam condenses into water with thermal energy transfer after to the cooling water in the recirculated cooling water pipeline 2 through condenser 12 and discharges.
Described recirculated cooling water pipeline 2 enters circulating cooling water pipe road 2 after 7 heat releases of heat supply network backwater process absorption heat pump and uses as cooling water; 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 the described heat supplying pipeline 5 enters recirculated cooling water pond 22 after lowering the temperature through absorption heat pump 7 heat releases, recirculated cooling water from circulating cooling pond 22, by the road 2, after circulating cooling water pump 21 enters condenser 12 and heats up, enter absorption heat pump 7 and again absorb heat, and enter heat supply network one time, form the loop.Heat supplying pipeline 5 is communicated with recirculated cooling water pipeline 2, utilizes recirculated cooling water to do hot net water, in the conserve water energy, improves heat utilization rate, reduces thermal energy consumption.By absorption heat pump the waste heat in the heat supply network water return pipeline is passed to heat supplying pipeline, improved the utilization rate of heat energy, reach the energy-saving and emission-reduction purpose.
Described heat supplying pipeline 5 is provided with control valve c51, and when heat supply network and absorption heat pump were working properly, described control valve was opened, and heat supplying pipeline 5 is communicated with recirculated cooling water pipeline 2; When heat supply network or absorption heat pump broke down, described control valve c51 closed, and heat supplying pipeline 5 disconnects with recirculated cooling water pipeline 2, be described control valve c51 when closing heat supplying pipeline close, no longer work on, while opening controlling valve b24, recirculated cooling water is walked 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 later circulating cooling pond 22 through circulating cooling water pump 21, condenser 12, cooling tower 23, forms the loop.Described recirculated cooling water pipeline 4 for subsequent use is provided with control valve b24, is positioned at before the cooling tower 23.When heat supply network and absorption heat pump are working properly, closed control valve b24, recirculated cooling water pipeline 4 for subsequent use is not worked; When heat supply network or absorption heat pump broke down, opening controlling valve b24 was by recirculated cooling water pipeline 4 cooling cooling waters for subsequent use.Guarantee normal power generation.
Described bleed steam pipework 3 connects steam turbine 11 and absorption heat pump 7, and as the driving heat source of absorption heat pump 7, steam turbine draws gas becomes the condensate water discharge by condensation after absorption heat pump 7 heat releases.Described bleed steam pipework 3 also is provided with control valve 31, and between steam turbine 11 and absorption heat pump 7, closed control valve 31 when need not heat supply.Also can be by the size of adjusting control valve 31 unlatchings, control enters the steam flow size of absorption heat pump 7, and then control heat supply network water temperature.
In actual the use, the temperature of heat supply network backwater is about 40-55 ℃, after 7 heat releases of heat supply network backwater process absorption heat pump, water temperature is reduced to and enters circulating cooling pond 22 about 30 ℃, recirculated cooling water through behind circulating cooling pond 22 and the circulating cooling water pump 21 about the heat absorption of condenser 12 places improves temperature to 40 ℃, further absorb heat through absorption heat pump 7, temperature can reach 80-88 ℃, and then enters a heat supply network heat supply.
Abovely the power plant provided by the present invention heat of condensation is reclaimed heating system be described in detail, for one of ordinary skill in the art, thought according to the embodiment of the invention all will change in specific embodiments and applications, can do respective change according to actual needs.In sum, this description should not be construed as limitation of the present invention.
Claims (8)
1. a power plant heat of condensation of 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 heat supply network one time after raising, it is characterized in that: also comprise recirculated cooling water pipeline (2), enter circulating cooling water pipe road (2) after the heat release of heat supply network backwater process absorption heat pump (7) and use as cooling water; 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).
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) makes the cooling water through condenser (12) absorb heat through condenser (12), and water temperature raises.
3. the power plant according to claim 1 heat of condensation reclaims heating system, it is characterized in that: also comprise recirculated cooling water pipeline for subsequent use (4), described recirculated cooling water pipeline for subsequent use (4) is got back to circulating cooling pond (22) after making the cooling water in circulating cooling pond (22) pass through circulating cooling water pump (21), condenser (12), control valve b (24), cooling tower (41) heat release, forms the loop.
4. 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 through steam turbine (11) acting is delivered to condenser (12), exhaust steam through condenser (12) with thermal energy transfer to the cooling water in the recirculated cooling water pipeline (2) after solidifying water discharge.
5. 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 becomes the condensate water discharge by condensation after absorption heat pump (7) heat release.
6. the power plant according to claim 5 heat of condensation reclaims heating system, and it is characterized in that: described bleed steam pipework (3) is provided with control valve a (31).
7. the power plant according to claim 3 heat of condensation reclaims heating system, and it is characterized in that: described recirculated cooling water pipeline for subsequent use (4) is provided with control valve b (24), is positioned at cooling tower (23) before.Control valve b (24) closed when heat supply network and absorption heat pump were working properly; Control valve b (24) opens when heat supply network or absorption heat pump break down, and recirculated cooling water is walked recirculated cooling water pipeline for subsequent use (4).
8. according to claim 1 to 6 described power plant heats of condensation recovery heating systems, it is characterized in that: described heat supplying pipeline (5) is provided with control valve c (51), and heat supplying pipeline (5) was communicated with recirculated cooling water pipeline (2) when described control valve c (51) opened; When heat supply network or absorption heat pump (7) when breaking down, control valve c (51) closes, and heat supplying pipeline (5) is closed.
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 true CN103032913A (en) | 2013-04-10 |
| CN103032913B 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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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104110975A (en) * | 2014-07-18 | 2014-10-22 | 烟台荏原空调设备有限公司 | Industrial wastewater treatment 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 |
| CN106969398A (en) * | 2017-03-29 | 2017-07-21 | 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 |
-
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 |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104110975A (en) * | 2014-07-18 | 2014-10-22 | 烟台荏原空调设备有限公司 | Industrial wastewater treatment device |
| 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 |
| CN106969398A (en) * | 2017-03-29 | 2017-07-21 | 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 |
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| CN103032913B (en) | 2015-05-13 |
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Inventor after: Li Tongqiang Inventor after: Wang Cong Inventor after: He Wen Inventor before: Li Tongqiang |
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