CN202066098U - Circulating water waste heat recycling system - Google Patents
Circulating water waste heat recycling system Download PDFInfo
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- CN202066098U CN202066098U CN 201120169775 CN201120169775U CN202066098U CN 202066098 U CN202066098 U CN 202066098U CN 201120169775 CN201120169775 CN 201120169775 CN 201120169775 U CN201120169775 U CN 201120169775U CN 202066098 U CN202066098 U CN 202066098U
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- China
- Prior art keywords
- recirculated water
- heat recovery
- water
- recovery system
- heat
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- 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.)
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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]
- Y02B30/12—Hot water central heating systems using heat pumps
Abstract
A circulating water waste heat recycling system serves as a sub-system of a previous circulating water system of a power plant and is merged into the previous circulating water system of the power plant. The circulating water waste heat recycling system comprises a booster pump arranged on a pipeline between a condenser of the previous circulating water system and a cooling tower, an absorption heat pump unit providing circulating water from the condenser to the circulating water waste heat recycling system, a first heat source water pipeline connected with the absorption heat pump and the condenser and a second heat source water pipeline connected with the absorption heat pump and the cooling tower. The absorption heat pump unit connected with the booster pump absorbs heat in the circulating water and provides the heat to heat-supply network users. An adjusting valve from heat source water to the condenser is installed on the first heat source water pipeline, and an adjusting valve from the heat source valve to the cooling tower is installed on the second heat source water pipeline.
Description
Technical field
The utility model relates to the energy-conserving and emission-cutting technology field, particularly a kind of recirculated water heat recovery system.
Background technology
Recirculated water heat recovery system is thermal source with recirculated water, and the waste heat that the synergy by many absorption type heat pump assemblys absorbs recirculated water heats hot net water, has realized the recycling of recirculated water waste heat.This power-saving technology application space is wide, suits to promote in China's large tracts of land.
In order to adopt recirculated water heat recovery system to come the waste heat of recirculated water is utilized, recirculated water heat recovery system need be incorporated in the generating set circulation.Fig. 1 does not incorporate the schematic diagram of generating set circulation into for recirculated water heat recovery system.As shown in Figure 1, the part that curve surrounds is original circulation of power plant for incorporating the part of electric power plant circulating water into beyond the curve.
Incorporate in the process of generating set circulation in recirculated water heat recovery system, because the existence of absorption type heat pump assembly and associated ping, increased water resistance, broken the equilibrium relation of original circulation, therefore, how optimization solves recirculated water heat recovery system heat sources side water circulation becoming popularization recirculated water heat recovery system problem demanding prompt solution.Still the solution of not having at present moulding.
The utility model content
Defective at prior art, the utility model embodiment provides a kind of recirculated water heat recovery system, has solved that to incorporate the water balance that brings after original circulation in recirculated water heat recovery system destroyed and described recirculated water heat recovery system carried out problems such as effective moisturizing.
To achieve these goals, the utility model embodiment provides a kind of recirculated water heat recovery system, described recirculated water heat recovery system incorporates in the original circulation of power plant as a subsystem of the original circulation of power plant, described recirculated water heat recovery system comprises: the booster of the condenser that is positioned at described original circulation to the pipeline of cooling tower will offer the absorption heat pump group of described recirculated water heat recovery system from the recirculated water of condenser; The described absorption heat pump group that is connected with described booster absorbs the heat in the recirculated water and offers the heat supply network user; The first heat source water pipeline that connects described absorption heat pump and described condenser is equipped with heat source water to the condenser control valve on the described first heat source water pipeline; And the second heat source water pipeline that connects described absorption heat pump and described cooling tower, heat source water is installed to the cooling tower control valve on the described second heat source water pipeline.
Described recirculated water heat recovery system also connects a scattered control system DCS, and the control signal that receives described DCS is controlled the duty of described recirculated water heat recovery system.
Described recirculated water heat recovery system receives the control signal of described DCS, controls described heat source water to the condenser control valve opening, and keeping the pressure of the female pipe of described booster is set-point.
Described recirculated water heat recovery system receives the control signal of described DCS, control described heat source water to the cooling tower control valve opening, keeping the outgoing condensate water temperature is set-point, distributes the proportionate relationship by the water yield of the water yield of absorption type heat pump assembly cooling and cooling tower cooling in real time.
Described system also comprises: be positioned at the recirculated water of described condenser to the pipeline of described cooling tower to heat recovery system stop valve.
Described recirculated water is to heat recovery system stop valve, at described recirculated water heat recovery system exception or standard-sized sheet when out of service, described recirculated water heat recovery system formed bypass; Described recirculated water is to heat recovery system stop valve, is in complete shut-down or half off status when putting into operation in described recirculated water heat recovery system.
The beneficial effects of the utility model are: scheme of the present utility model has solved in the process that recirculated water heat recovery system incorporates the generating set circulation into conscientiously because the equipment increase causes under the situation that water resistance increases the problem how optimization rebulids new balance; Solved optimization and distributed proportionate relationship problem in real time by the water yield of the water yield of absorption type heat pump assembly cooling and cooling tower cooling; Solved the moisturizing problem of absorption heat pump heat source side water circulation; For recirculated water heat recovery project provides practicable solution in the popularization of power system.
Description of drawings
Fig. 1 does not incorporate the schematic diagram of generating set circulation into for recirculated water heat recovery system;
The schematic diagram of the recirculated water heat recovery system that Fig. 2 provides for the utility model embodiment;
Fig. 3 incorporates the schematic diagram of generating set circulation into for the recirculated water heat recovery system of the utility model embodiment.
The specific embodiment
For purpose, technical scheme and advantage that the utility model is implemented is clearer, the utility model embodiment is described in further detail below in conjunction with Shijingshan power plant actual enforcement accompanying drawing.At this, illustrative examples of the present utility model and explanation thereof are used to explain the utility model, but not as to qualification of the present utility model.
The optimization that the utility model provides a kind of circulating-water in thermal power plant heat recovery system to incorporate the electric power plant circulating water system into solves scheme, has solved water yield ratio that the circulation of recirculated water heat recovery system heat sources side water, dynamic assignment cooled off by the water yield of absorption type heat pump assembly cooling and cooling tower and described recirculated water heat recovery system is carried out problems such as effective moisturizing.
The schematic diagram of the recirculated water heat recovery system that Fig. 2 provides for the utility model embodiment.As shown in Figure 2, recirculated water heat recovery of the present utility model system comprises following equipment: booster, booster access doors, booster outlet portal, recirculated water to the cooling tower control valve, and have laid corresponding pipeline to heat recovery system stop valve, heat source water to condenser control valve, heat source water.Scheme of the present utility model is applicable to the system that cooling tower is not out of service.
The utility model embodiment sets up water circulation as shown in Figure 2 on former circulation basis: outgoing condensate water boosts through booster, through being divided into two-way after the absorption heat pump heat absorption, the first heat source water pipeline of leading up to returns condenser, and the second heat source water discharge of pipes is passed through to cooling tower in another road.
The first heat source water pipeline water cycles through scattered control system DCS, one cover PID (ratio, integration, differential) is set to be regulated, the control heat source water is to the condenser control valve opening, and keeping the pressure of the female pipe of booster is set-point, forms the water circulation of absorption type heat pump assembly heat source side.
The second heat source water pipeline water cycles through the DCS system, one cover PID is set to be regulated, the control heat source water is to the cooling tower control valve opening, and keeping the outgoing condensate water temperature is set-point, distributes the proportionate relationship by the water yield of the water yield of absorption type heat pump assembly cooling and cooling tower cooling in real time.
Recirculated water to heat recovery system stop valve plays control and protective effect to recirculated water heat recovery system, when recirculated water heat recovery system exception or recirculated water heat recovery system standard-sized sheet when out of service, the heat recovery system is formed bypass; When putting into operation, recirculated water heat recovery system is in complete shut-down or half off status.
The effect of booster is that recirculated water is carried out pressurized treatment, when coming into operation in recirculated water heat recovery system, at the original water circulating pump of maintenance constant situation is set and is issued to new water supply balance; And withdraw from when using in recirculated water heat recovery system, because of original water circulating pump does not carry out any change, former circulation can continue to keep original mode to move.
Simultaneously, because the not independent circulatory system that forms oneself of the utility model recirculated water heat recovery system heat sources side water circulation, but move as the subsystem of original circulation, the moisturizing problem of having avoided the independent thermal source water circulation system to face can be carried out moisturizing by original circulation.
Fig. 3 incorporates the schematic diagram of generating set circulation into for the recirculated water heat recovery system of the utility model embodiment.As shown in Figure 3: outgoing condensate water after booster boosts to the absorption type heat pump assembly, after absorption type heat pump assembly heat absorption to heat source water to the condenser control valve, be back to gas trap again and form the first heat source water pipeline; Cooling tower come water through water circulating pump to condenser, outgoing condensate water after booster boosts to the absorption type heat pump assembly, after absorption type heat pump assembly heat absorption to heat source water to the cooling tower control valve, be back to cooling tower again and form the second heat source water pipeline.
The first heat source water pipeline water cycles through the DCS system, a cover PID is set regulates, and the control heat source water is to the condenser control valve opening, and keeping the pressure of the female pipe of booster is set-point, forms the water circulation of absorption type heat pump assembly heat source side.
The second heat source water pipeline water cycles through the DCS system, one cover PID is set to be regulated, the control heat source water is to the cooling tower control valve opening, and keeping the outgoing condensate water temperature is set-point, distributes the proportionate relationship by the water yield of the water yield of absorption type heat pump assembly cooling and cooling tower cooling in real time.
The technical solution of the utility model has following characteristics:
1, the utility model be provided with heat source water to gas trap and heat source water to separate two circulation lines that are mutually related again of cooling tower two-way.This set-up mode both can keep the water circulation of absorption type heat pump assembly heat source side, distributed the proportionate relationship by the water yield of the water yield of absorption type heat pump assembly cooling and cooling tower cooling in real time, can guarantee the safe operation of unit simultaneously again to greatest extent.Power plant does not still have the application precedent at home.
2, the utility model does not independently make up the heat source side water circulation system, with the subsystem operation of heat source side water circulation system as original circulation.This set-up mode does not carry out any change because of original water circulating pump, continues to keep original mode to move when former circulation is can be in the heat recovery system out of service.The heat source side water circulation system can be avoided the moisturizing problem of independent thermal source side water circulation system as the subsystem operation of original circulation simultaneously.
Technical solutions of the utility model have been brought following beneficial effect: scheme of the present utility model has solved in the process that recirculated water heat recovery system incorporates the generating set circulation into conscientiously because the equipment increase causes under the situation that water resistance increases the problem how optimization rebulids new balance; Solved optimization and distributed proportionate relationship problem in real time by the water yield of the water yield of absorption type heat pump assembly cooling and cooling tower cooling; Solved the moisturizing problem of absorption heat pump heat source side water circulation; For recirculated water heat recovery project provides practicable solution in the popularization of power system.
Above embodiment only in order to the technical scheme of explanation the utility model embodiment, is not intended to limit; Although the utility model embodiment is had been described in detail with reference to previous embodiment, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of each embodiment technical scheme of the utility model embodiment.
Claims (6)
1. a recirculated water heat recovery system is characterized in that, described recirculated water heat recovery system incorporates in the original circulation of power plant as a subsystem of the original circulation of power plant, and described recirculated water heat recovery system comprises:
The booster of the condenser that is positioned at described original circulation to the pipeline of cooling tower will offer the absorption heat pump group of described recirculated water heat recovery system from the recirculated water of condenser;
The described absorption heat pump group that is connected with described booster absorbs the heat in the recirculated water and offers the heat supply network user;
The first heat source water pipeline that connects described absorption heat pump and described condenser is equipped with heat source water to the condenser control valve on the described first heat source water pipeline; And
The second heat source water pipeline that connects described absorption heat pump and described cooling tower is equipped with heat source water to the cooling tower control valve on the described second heat source water pipeline.
2. recirculated water heat recovery according to claim 1 system, it is characterized in that, described recirculated water heat recovery system also connects a scattered control system DCS, and the control signal that receives described DCS is controlled the duty of described recirculated water heat recovery system.
3. recirculated water heat recovery according to claim 2 system, it is characterized in that, described recirculated water heat recovery system receives the control signal of described DCS, controls described heat source water to the condenser control valve opening, and keeping the pressure of the female pipe of described booster is set-point.
4. recirculated water heat recovery according to claim 2 system, it is characterized in that, described recirculated water heat recovery system receives the control signal of described DCS, control described heat source water to the cooling tower control valve opening, keeping the outgoing condensate water temperature is set-point, distributes the proportionate relationship by the water yield of the water yield of absorption type heat pump assembly cooling and cooling tower cooling in real time.
5. recirculated water heat recovery according to claim 1 system is characterized in that described system also comprises:
Be positioned at the recirculated water of described condenser to the pipeline of described cooling tower to heat recovery system stop valve.
6. recirculated water heat recovery according to claim 5 system is characterized in that,
Described recirculated water is to heat recovery system stop valve, at described recirculated water heat recovery system exception or standard-sized sheet when out of service, described recirculated water heat recovery system formed bypass;
Described recirculated water is to heat recovery system stop valve, is in complete shut-down or half off status when putting into operation in described recirculated water heat recovery system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120169775 CN202066098U (en) | 2011-05-24 | 2011-05-24 | Circulating water waste heat recycling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120169775 CN202066098U (en) | 2011-05-24 | 2011-05-24 | Circulating water waste heat recycling system |
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| Publication Number | Publication Date |
|---|---|
| CN202066098U true CN202066098U (en) | 2011-12-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120169775 Expired - Lifetime CN202066098U (en) | 2011-05-24 | 2011-05-24 | Circulating water waste heat recycling system |
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| CN (1) | CN202066098U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102945033A (en) * | 2012-11-08 | 2013-02-27 | 河北建投国融能源服务股份有限公司 | Circulating water residual heat recovery and utilization method |
| CN103017563A (en) * | 2012-12-09 | 2013-04-03 | 河北建投国融能源服务股份有限公司 | Circulating water running system and running method thereof |
-
2011
- 2011-05-24 CN CN 201120169775 patent/CN202066098U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102945033A (en) * | 2012-11-08 | 2013-02-27 | 河北建投国融能源服务股份有限公司 | Circulating water residual heat recovery and utilization method |
| CN103017563A (en) * | 2012-12-09 | 2013-04-03 | 河北建投国融能源服务股份有限公司 | Circulating water running system and running method thereof |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111207 |