CN102997311B - Power plant condensing heat recovery heat supply system - Google Patents
Power plant condensing heat recovery heat supply system Download PDFInfo
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- CN102997311B CN102997311B CN201210583017.5A CN201210583017A CN102997311B CN 102997311 B CN102997311 B CN 102997311B CN 201210583017 A CN201210583017 A CN 201210583017A CN 102997311 B CN102997311 B CN 102997311B
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- heat
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Abstract
The invention relates to a heat recovery device, and discloses a power plant condensing heat recovery heat supply system which comprises a steam pipeline, a circulating cooling water pipeline and an internal circulating pipeline. The power plant condensing heat recovery is characterized by further comprising a heat supply pipeline, and the heat supply pipeline comprises a heat user terminal, and condensing heat returns to the heat user terminal through water return pipelines after passing through a water-water heat exchanger. The heat recovery device achieves condensing heat recovery by the heat exchange manner of an absorption heat pump, recovers power plant condensing heat, and waste heat in circulating cooling water, and uses the condensing heat and the waste heat for production and life heat supply, and therefore has the advantages of being high in heat energy recovery utilization rate, energy-saving and environment-protective and the like.
Description
Technical field
The present invention relates to a kind of waste heat of power plant retracting device, recuperation of heat heating system is coagulated by more particularly, to a kind of power plant.
Background technology
Thermal power plant condensation heat enters air by cooling tower or Air-Cooling Island and forms huge heat-energy losses, is that firepower is sent out
The low main cause of power plant's energy use efficiency, not only causes the waste of big energy and water or electricity, simultaneously also seriously dirty
Contaminate air.Thermal power plant condenses heat emptying, is China or even world's common problem, is to waste, is also helpless.So
And, with the development of heat pump techniques, the particularly appearance of large high-temperature water resource heat pump so that the recovery of generating set condensation waste heat
To be possibly realized.
Content of the invention
The present invention is difficult to reclaim the problem with utilization for condensing used heat in prior art, there is provided one kind adopts heat pump skill
Art reclaims the hot heating system of power plant condensation.
In order to solve above-mentioned technical problem, the present invention is addressed by following technical proposals:
Recuperation of heat heating system is coagulated by a kind of power plant, including steam pipework, recirculated cooling water pipeline, inner loop pipeline, also wraps
Include heat supplying pipeline, described heat supplying pipeline includes heat user terminal, and the water in heat supplying pipeline passes through back after water water- to-water heat exchanger
Water lines return to heat user terminal.A large amount of waste heats are contained, heat supplying pipeline passes through absorption heat pump and water in circulating cooling water of power plant
Water- to-water heat exchanger reclaims the waste heat in circulating cooling water of power plant, and then is transported to heat user end, realizes Waste Heat Recovery and heat supply.
Preferably, recuperation of heat heating system is coagulated by described power plant also includes steam-water heat exchanging pipeline, described steam-water heat exchanging
Pipeline is provided with vapor-water heat exchanger, after sorption type heat pump heat absorption, forms condensed water and discharges.
Preferably, described heat supplying pipeline (secondary heat supply network) is provided with heat circulation pump, described circulating pump is arranged on water
Between water- to-water heat exchanger and heat user terminal.By the dynamic action of heat circulation pump, make the water circulation in heat supplying pipeline, will
Heat delivers to terminal use.
Preferably, described steam pipework does work through steam turbine, the exhaust steam that steam turbine is discharged is delivered to condenser, exhaust steam
After the cooling water that condenser transfers thermal energy in recirculated cooling water pipeline, solidifying water is discharged.
Preferably, described recirculated cooling water pipeline is pumped back to cooling through coolant circulation pump, condenser, absorption type heat
Circulating pump, forms loop, thus eliminating recirculated cooling water to send cooling tower to environmental emission used heat.To be followed by absorption heat pump
Heat energy in ring cooling water pipeline passes to heat supplying pipeline, improves the utilization rate of heat energy, reaches energy-saving and emission-reduction purpose.
Preferably, described inner loop pipeline (heat supply network) is through absorption heat pump and water water- to-water heat exchanger.Inside follow
Endless tube road carries out heat exchange by the absorption heat pump on recirculated cooling water pipeline, vapor-water heat exchanger and improves a heat supply network temperature,
Then by water water- to-water heat exchanger by the heat energy of acquisition with heat exchange by way of pass to secondary heat supply network heat supplying pipeline, thus heat is sent
To terminal heat user.
Preferably, described inner loop pipeline is provided with internal circulation pump, described internal circulation pump be located at absorption heat pump and
Between water water- to-water heat exchanger.By the dynamic action of internal circulation pump, make the water circulation in inner loop pipeline.
Preferably, described steam-water heat exchanging pipeline is additionally provided with control valve, described control valve is changed with soda pop positioned at steam turbine
Between hot device.Heating load can be controlled by the regulation of control valve, for different weather conditions, change control valve constant opening degree
Heat user temperature.
The present invention realizes solidifying recuperation of heat by the heat exchange method of absorption heat pump, reclaims power plant's condensation heat, circulating cooling
Waste heat in water water, has the advantages of heat energy recycle rate height, energy-saving and emission-reduction.
Brief description
Fig. 1 is the structural representation of the embodiment of the present invention 1.
Wherein: 1- steam pipework, 2- recirculated cooling water pipeline, 3- steam-water heat exchanging pipeline, 4- inner loop pipeline, 5- heating tube
Road, 6- vapor-water heat exchanger, 7- absorption heat pump, 9- water water- to-water heat exchanger, 11- steam turbine, 12- condenser, 21- coolant circulation pump,
31- control valve, 41- internal circulation pump, 10- heat user terminal, 51- heat circulation pump.
Specific embodiment
1 with specific embodiment, the present invention is described in further detail below in conjunction with the accompanying drawings:
Recuperation of heat heating system is coagulated by a kind of power plant, as shown in figure 1, including steam pipework 1, recirculated cooling water pipeline 2, soda pop
Heat exchanging pipe 3, inner loop pipeline 4 and heat supplying pipeline 5.
Described steam-water heat exchanging pipeline 3 is provided with vapor-water heat exchanger 6, and connects absorption heat pump 7, in steam-water heat exchanging pipeline 3
Steam after absorption heat pump 7 heat absorption, form condensed water discharge.Described steam-water heat exchanging pipeline 3 is through vapor-water heat exchanger 6
Carry out the water temperature that partial exothermic improves inner loop pipeline (heat supply network) 4, be then sent through absorption heat pump 7 as absorption heat pump 7
Driving heat source, absorption heat pump 7 reclaims the used heat that recirculated cooling water discharged by condenser, and is supplied to inner loop pipeline after heating up
4.
Described steam-water heat exchanging pipeline 3 is additionally provided with control valve 31, and described control valve 31 is located at steam turbine 11 and steam-water heat exchanging
Between device 6.Heating load can be controlled by the regulation of control valve 31, for different weather conditions, change opening of control valve 31
Spend constant heat user temperature.Described steam-water heat exchanging pipeline 3 improves a heat supply network coolant-temperature gage through vapor-water heat exchanger 6, is connected to
Absorption heat pump 7 carries out heat release as the thermal source of absorption heat pump 7, then passes through the effect of circulating pump 51, absorption heat pump 7 times
Receive the used heat in recirculated cooling water, and be supplied to heat user.
The steam of described steam pipework 1 is sent into steam turbine 11 and is done work, and the exhaust steam discharged after steam turbine 11 acting is delivered to
Condenser 12, exhaust steam transfers thermal energy to condense into water discharge after the cooling water in recirculated cooling water pipeline 2 through condenser 12.
Described recirculated cooling water pipeline 2 returns to cooling after coolant circulation pump 21, condenser 12, absorption heat pump 7
Circulating pump 21, forms loop.Cooling water with heat energy extracts waste thermal energy through absorption heat pump 7 and in absorption heat pump 7
Carry out heat exchange with inner loop pipeline 4, inner loop pipeline 4 transfers thermal energy to heat supplying pipeline 5 by water water- to-water heat exchanger 9.
It is a heat supply network that the present embodiment also includes inner loop pipeline 4, and inner loop pipeline 4 changes through absorption heat pump 7, soda pop
Hot device 6 and water water- to-water heat exchanger 9.Inner loop pipeline 4 is changed by the absorption heat pump 7 on recirculated cooling water pipeline 2 and soda pop
Hot device 6 carry out heat exchange obtain heat energy, then by water water- to-water heat exchanger 9 by the heat energy of acquisition with heat exchange by way of pass to confession
Pipe line 5.Inner loop pipeline 4 is provided with internal circulation pump 41, and internal circulation pump 41 is arranged on absorption heat pump 7 and water water- to-water heat exchanger 9
Between.Water in inner loop pipeline 4 obtains heat energy after absorption heat pump 7, and temperature is increased to 90 DEG C, now changes through soda pop
Hot device 6, water temperature is promoted to more than 105 DEG C further, be then passed through water water- to-water heat exchanger 9 release heat energy after temperature drop to 53 DEG C with
Under.
It is secondary heat supply network that described power plant coagulate recuperation of heat heating system also to include heat supplying pipeline 5, and described heat supplying pipeline 5 wraps
Include heat user terminal 10, the water in heat supplying pipeline 5 returns to heat user terminal 10 by water return pipeline after water water- to-water heat exchanger 9.
Circulating pump 51 is additionally provided with described heat supplying pipeline 5, described circulating pump 51 is arranged on water water- to-water heat exchanger 9 and heat user
Between terminal 10.By the dynamic action of circulating pump 51, make the water circulation in heat supplying pipeline 5.In described heat supplying pipeline 5
Heat energy obtained by water water- to-water heat exchanger 9.After water water- to-water heat exchanger 9, the water temperature in heat supplying pipeline 5 is increased to heat supplying pipeline 5
More than 70 DEG C, then enter heat user terminal 10 and be used for heating, water temperature is reduced to 50 DEG C about after heat user terminal 10, enters
And the effect due to circulating pump 51, being recycled to water water- to-water heat exchanger 9 heats again, so circulates, thus realizing cold using power plant
Recirculated cooling water used heat is realized reclaiming by absorption heat pump 7, is reclaimed power plant cold by the but purpose of the waste heat recovery heat supply in water
Solidifying heat is simultaneously used for producing and living heat supply, has the advantages of heat energy recycle rate height, energy-saving and emission-reduction.
Coagulate recuperation of heat heating system to power plant provided by the present invention above to be described in detail, for the one of this area
As technical staff, according to the embodiment of the present invention thought, all will change in specific embodiments and applications, can
Do respective change according to being actually needed.In sum, this specification content should not be construed as limitation of the present invention.
Claims (5)
1. recuperation of heat heating system is coagulated by a kind of power plant, including steam pipework (1), recirculated cooling water pipeline (2), inner loop pipeline
(4) it is characterised in that: also include heat supplying pipeline (5), described heat supplying pipeline (5) includes heat user terminal (10), through water water
Heat exchanger (9) delivers to heat user terminal (10) by supply channel afterwards, and inner loop pipeline (4) is through absorption heat pump (7), soda pop
Heat exchanger (6) and water water- to-water heat exchanger (9), inner loop pipeline (4) pass through recirculated cooling water pipeline on absorption heat pump and
Vapor-water heat exchanger carry out heat exchange obtain heat energy, then by water water- to-water heat exchanger by the heat energy of acquisition with heat exchange by way of transmit
To heat supplying pipeline,
Also include steam-water heat exchanging pipeline (3), described steam-water heat exchanging pipeline (3) is provided with vapor-water heat exchanger (6), steam-water heat exchanging pipeline
(3) steam in carries out partial exothermic through vapor-water heat exchanger (6) and improves inner loop pipeline (4) coolant-temperature gage, is then sent through absorbing heat
Pump (7), as the driving heat source of sorption type heat pump (7), after absorption heat pump (7) heat absorption, is formed condensed water and is discharged；
Described steam-water heat exchanging pipeline (3) is additionally provided with control valve (31), and described control valve (31) is located at steam turbine (11) and vapour
Between water- to-water heat exchanger (6).
2. power plant according to claim 1 coagulate recuperation of heat heating system it is characterised in that: on described heat supplying pipeline (5)
It is provided with heat circulation pump (51), described heat circulation pump (51) is arranged between water water- to-water heat exchanger (9) and heat user terminal (10).
3. power plant according to claim 1 coagulate recuperation of heat heating system it is characterised in that: described steam pipework (1) warp
The exhaust steam producing after crossing steam turbine (11) acting is delivered to condenser (12), and exhaust steam transfers thermal energy to cold through condenser (12)
But become condensate after the cooling water in water circulation pipe (2) to discharge.
4. power plant according to claim 1 coagulate recuperation of heat heating system it is characterised in that: described recirculated cooling water pipeline
(2) return to circulating cooling water pump (21) after circulating cooling water pump (21), condenser (12), absorption heat pump (7), formed
Loop.
5. the power plant according to Claims 1-4 any one coagulate recuperation of heat heating system it is characterised in that: described is interior
Circulation line (4) is provided with internal circulation pump (41), and described internal circulation pump (41) is located at absorption heat pump (7) and water water- to-water heat exchanger
(9) between.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210583017.5A CN102997311B (en) | 2012-12-25 | 2012-12-25 | Power plant condensing heat recovery heat supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210583017.5A CN102997311B (en) | 2012-12-25 | 2012-12-25 | Power plant condensing heat recovery heat supply system |
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| Publication Number | Publication Date |
|---|---|
| CN102997311A CN102997311A (en) | 2013-03-27 |
| CN102997311B true CN102997311B (en) | 2017-01-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210583017.5A Expired - Fee Related CN102997311B (en) | 2012-12-25 | 2012-12-25 | Power plant condensing heat recovery heat supply system |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103542445A (en) * | 2012-07-11 | 2014-01-29 | 青岛达能环保设备股份有限公司 | System for utilizing absorption heat pump to recycle waste heat of circulating water of thermal power plant |
| CN107702182A (en) * | 2017-09-01 | 2018-02-16 | 中清源环保节能有限公司 | A kind of big temperature difference recovery exhaust steam residual heat system in coal-burning power plant's heat supply initial station |
| CN115574646A (en) * | 2022-12-09 | 2023-01-06 | 华北电力大学（保定） | Cascade phase change heat storage system and method based on power plant waste heat and high-temperature heat pump |
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| DE19853206C1 (en) * | 1998-11-18 | 2000-03-23 | Siemens Ag | Feed-water vessel condensate warm-up device e.g. for steam electric power station |
| CN101231004A (en) * | 2008-02-28 | 2008-07-30 | 清华大学 | Large temperature-difference central heating system |
| CN101726110A (en) * | 2009-11-20 | 2010-06-09 | 清华大学 | Heatpump type gas-fired boiler waste heat recovery unit |
| CN102374692A (en) * | 2011-09-29 | 2012-03-14 | 浙江工商大学 | Power-plant waste-heat recovering device |
| CN202182510U (en) * | 2011-08-13 | 2012-04-04 | 双良节能系统股份有限公司 | Centralized heat supply system capable of utilizing waste heat of direct air cooling power plant |
| CN102435015A (en) * | 2011-09-29 | 2012-05-02 | 浙江工商大学 | Condensation heat recovery device in power station |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH094807A (en) * | 1995-06-15 | 1997-01-10 | Pado:Kk | Steam turbine power generating device, heating feed water by waste heat |
| CN201396838Y (en) * | 2009-04-08 | 2010-02-03 | 喻渝 | Waste heat utilization heating system for saturated steam-driven absorption heat pump in power plant |
-
2012
- 2012-12-25 CN CN201210583017.5A patent/CN102997311B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19853206C1 (en) * | 1998-11-18 | 2000-03-23 | Siemens Ag | Feed-water vessel condensate warm-up device e.g. for steam electric power station |
| CN101231004A (en) * | 2008-02-28 | 2008-07-30 | 清华大学 | Large temperature-difference central heating system |
| CN101726110A (en) * | 2009-11-20 | 2010-06-09 | 清华大学 | Heatpump type gas-fired boiler waste heat recovery unit |
| CN202182510U (en) * | 2011-08-13 | 2012-04-04 | 双良节能系统股份有限公司 | Centralized heat supply system capable of utilizing waste heat of direct air cooling power plant |
| CN102374692A (en) * | 2011-09-29 | 2012-03-14 | 浙江工商大学 | Power-plant waste-heat recovering device |
| CN102435015A (en) * | 2011-09-29 | 2012-05-02 | 浙江工商大学 | Condensation heat recovery device in power station |
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| CN102997311A (en) | 2013-03-27 |
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Granted publication date: 20170125 Termination date: 20171225 |