CN105953424B - Residual heat of electric power plant reclaims heating system - Google Patents
Residual heat of electric power plant reclaims heating system Download PDFInfo
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- CN105953424B CN105953424B CN201610273786.3A CN201610273786A CN105953424B CN 105953424 B CN105953424 B CN 105953424B CN 201610273786 A CN201610273786 A CN 201610273786A CN 105953424 B CN105953424 B CN 105953424B
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- power plant
- steam
- electric power
- heat
- boiler
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H4/00—Fluid heaters characterised by the use of heat pumps
- F24H4/02—Water heaters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22D—PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER FOR STEAM GENERATION; FEED-WATER SUPPLY FOR STEAM GENERATION; CONTROLLING WATER LEVEL FOR STEAM GENERATION; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN STEAM BOILERS
- F22D11/00—Feed-water supply not provided for in other main groups
- F22D11/02—Arrangements of feed-water pumps
- F22D11/06—Arrangements of feed-water pumps for returning condensate to boiler
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
- Y02P80/15—On-site combined power, heat or cool generation or distribution, e.g. combined heat and power [CHP] supply
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Water Supply & Treatment (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
The present invention discloses a kind of residual heat of electric power plant recovery heating system.Residual heat of electric power plant recovery heating system is used for the waste heat for absorbing boiler of power plant (1), including：Steam turbine (2), boiler of power plant (1) is connected to, and for sucking steam caused by boiler of power plant (1)；Absorption heat pump (3), including generator and condenser, generator is connected by the first cooling line (4) with steam turbine (2), it is connected to boiler of power plant (1) after the heat exchange of first cooling line (4) and generator, condenser is to treating that heating plant (5) carries out heat supply.Heating system is reclaimed according to the residual heat of electric power plant of the present invention, can solve the problems, such as that residual heat of electric power plant is not utilized effectively in the prior art.
Description
Technical field
The present invention relates to heat recovery technical field, and heating system is reclaimed in particular to a kind of residual heat of electric power plant.
Background technology
" 12 " period is the crucial period that China accelerates transformation of the mode of economic development, to further strengthening energy-saving and emission-reduction
The tied mechanism of target proposes requirements at the higher level.At present, the existing power plant's comprehensive energy rate in China compares relatively low, more than majority presence
The serious phenomenon of heat waster.In power plant's course of work, a large amount of exhaust heats are substantially all and not had wherein caused by boiler of power plant
It is reused, but is wasted by recirculating cooling water system, in fact, this partial heat is good Low Temperature Thermal
Source, temperature and flow are all relatively stable, and water quality is relatively clean, if can be reasonable, primary energy consumption will be greatly reduced, carry
Power plant's heat capacity is risen, heat supply investment is reduced, reduces environmental pollution.
The content of the invention
A kind of residual heat of electric power plant recovery heating system is provided in the embodiment of the present invention, can solve residual heat of electric power plant in the prior art
The problem of not being utilized effectively.
To achieve the above object, the embodiment of the present invention provides a kind of residual heat of electric power plant recovery heating system, for absorbing power plant
The waste heat of boiler, including：Steam turbine, boiler of power plant is connected to, and for sucking steam caused by boiler of power plant；Absorption type heat
Pump, including generator and condenser, generator are connected by the first cooling line with steam turbine, the first cooling line and generator
It is connected to boiler of power plant after heat exchange, condenser is to treating that heating plant carries out heat supply.
Preferably, it is provided with the first condensate tank on the first cooling line between generator and boiler of power plant.
Preferably, steam turbine is also connected by the second cooling line with generator, steaming is provided with the second cooling line
Vapour case, the steam (vapor) outlet end of steam chest and the steam inlet end of generator connect, the condensation-water drain end of generator and steam chest
Condensing water inlet end connection.
Preferably, residual heat of electric power plant recovery heating system also includes cooling system, cooling system and absorption type heat parallel connection of pumps,
The entrance point of cooling system and the steam (vapor) outlet end of steam chest connect, the port of export of cooling system and the condensing water inlet of steam chest
End connection, entrance point and the port of export at least one end of cooling system are provided with the first control valve.
Preferably, it is provided with the second condensate tank on pipeline between the condensation-water drain and boiler of power plant of steam chest.
Preferably, treating that heating plant includes cold water pipeline, hot water line and user terminal, cold water pipeline is connected to user terminal
Between the cooling water inlet end on condenser, hot water line is connected between the hot water outlet end on user terminal and condenser.
Preferably, being connected with regulation pipeline between cold water pipeline and hot water line, adjust and be provided with regulating valve on pipeline.
Preferably, the second control valve and the heating pipeline in parallel with the second control valve are provided with hot water line, electricity
Factory's waste heat recovery heating system also includes heater, and heating pipeline flows through heater.
Preferably, the heat source side of heater is connected to the steam output end of steam turbine.
Preferably, the arrival end of boiler of power plant is provided with oxygen-eliminating device.
Applying the technical scheme of the present invention, residual heat of electric power plant recovery heating system is used for the waste heat for absorbing boiler of power plant, including：
Steam turbine, boiler of power plant is connected to, and for sucking steam caused by boiler of power plant；Absorption heat pump, including generator and
Condenser, generator are connected by the first cooling line with steam turbine, and the first cooling line after generator heat exchange with being connected to electricity
Factory's boiler, condenser to treat heating plant carry out heat supply.Absorption heat pump can absorb the steam waste heat of boiler of power plant, then will
This part of waste heat, which is supplied to, treats heating plant, so as to effectively utilize residual heat of electric power plant, improves energy utilization rate, reduces
Energy loss, heat supply investment is reduced, reduces environmental pollution, improves comprehensive utilization of energy rate.
Brief description of the drawings
Fig. 1 is the structural representation of the residual heat of electric power plant recovery heating system of the embodiment of the present invention.
Description of reference numerals：1st, boiler of power plant；2nd, steam turbine；3rd, absorption heat pump；4th, the first cooling line；5th, heat supply is treated
Device；6th, the first condensate tank；7th, the second cooling line；8th, steam chest；9th, cooling system；10th, the first control valve；11st, second
Condensate tank；12nd, cold water pipeline；13rd, hot water line；14th, user terminal；15th, pipeline is adjusted；16th, regulating valve；17th, the second control
Valve；18th, pipeline is heated；19th, heater；20th, oxygen-eliminating device；21st, filter；22nd, pump machine.
Embodiment
The present invention is described in further detail with specific embodiment below in conjunction with the accompanying drawings, but not as the limit to the present invention
It is fixed.
As shown in figure 1, according to an embodiment of the invention, residual heat of electric power plant recovery heating system is used to absorb boiler of power plant 1
Waste heat, including：Steam turbine 2, boiler of power plant 1 is connected to, and for sucking steam caused by boiler of power plant 1；Absorption heat pump
3, including generator and condenser, generator be connected by the first cooling line 4 with steam turbine 2, the first cooling line 4 is with occurring
Boiler of power plant 1 is connected to after device heat exchange, and condenser is to treating that heating plant 5 carries out heat supply.
Absorption heat pump 3 can absorb the steam waste heat of boiler of power plant, be then supplied to this part of waste heat and treat heat supply
Device 5, so as to effectively utilize residual heat of electric power plant, energy utilization rate is improved, reduces energy loss, reduce heat supply investment,
Reduce environmental pollution, improve comprehensive utilization of energy rate.Preferably, in the present embodiment, the absorption heat pump is inhaled for lithium bromide
Receipts formula heat pump.
It is preferably located on the first cooling line 4 between generator and boiler of power plant 1 and is provided with the first condensate tank 6.
Generator is exchanged heat with the steam in the first cooling line 4, allows the steam in the first cooling line 4 to be cooled to condense
Water, during the steam in the first cooling line 4 exchanges heat by generator, it is understood that there may be some vapor does not exchange heat cold completely
Solidifying phenomenon, the steam of non-total condensation can now be condensed by the first condensate tank 6 so that steam can be complete
Condensation, then just enter the entrance point of boiler of power plant 1, improve the exchange capacity with boiler of power plant 1.
Steam turbine 2 can also be connected by the second cooling line 7 with generator, and steam is provided with the second cooling line 7
Case 8, the steam (vapor) outlet end of steam chest 8 and the steam inlet end of generator connect, condensation-water drain end and the steam chest 8 of generator
Condensing water inlet end connection.Steam chest 8 can make steam be exchanged heat with condensed water so that steam is capable of absorption condensation water
Heat, vapor (steam) temperature is further improved, reduce condensate temperature, improve steam heat-exchanging efficiency.
Residual heat of electric power plant recovery heating system also includes cooling system 9, and cooling system 9 is in parallel with absorption heat pump 3, cooling system
The entrance point of system 9 is connected with the steam (vapor) outlet end of steam chest 8, the port of export of cooling system 9 and the condensing water inlet end of steam chest 8
Connection, entrance point and the port of export at least one end of cooling system 9 are provided with the first control valve 10.
Cooling system 9 includes cooling tower, and cooling system 9 can carry out condensing heat-exchange to the steam flowed out from steam chest 8, from
And the steam of the outflow out of boiler of power plant 1 is more fully condensed, the condensation efficiency of steam can be improved.In the work of reality
During, the aperture of the first control valve 10 can be adjusted as needed, so as to control the condensing capacity of cooling system 9, and then controlled
Exchange capability of heat between system the second cooling line 7 of regulation and generator so that residual heat of electric power plant recovery heating system has higher
Overall efficiency.
Preferably, the second condensate tank is provided with the pipeline between the condensation-water drain of steam chest 8 and boiler of power plant 1
11.Second condensate tank 11 can carry out cold again to the condensed water after being exchanged heat by cooling system 9 and absorption heat pump 3
It is solidifying so that the steam that may contain in condensed water can more thoroughly be condensed into condensed water, and boiler of power plant 1 can be played
More preferable cooling heat transferring effect.
During the use of reality, residual heat of electric power plant recovery heating system can only set the first cooling line 4, can also
Second cooling line 7 is only set, can be existed simultaneously with two cooling lines.
Treat that heating plant 5 includes cold water pipeline 12, hot water line 13 and user terminal 14, cold water pipeline 12 is connected to user terminal
14 and condenser on cooling water inlet end between, hot water line 13 be connected to hot water outlet end on user terminal 14 and condenser it
Between.The condensation that cold water in user terminal 14 is transported to absorption absorption heat pump 3 in absorption heat pump 3 by cold water pipeline 12 is put
Heat, after the cold water in cold water pipeline 12 is heated, user terminal 14 is back to through hot water line 13, hot water is taken for user, can be with
The heat discharged in absorption heat pump heat transfer process is easily utilized, improves energy utilization rate, and thermal source cleaning is without dirt
Dye, is the recycling to the energy, it is possible to reduce energy consumption, reduces environmental pollution.
Preferably, regulation pipeline 15 is connected between cold water pipeline 12 and hot water line 13, adjusts and is provided with pipeline 15
Regulating valve 16.When needing that the hot water temperature in hot water line 13 is adjusted, the aperture of regulating valve 16 can be adjusted, so as to
Cold water in control cold water pipeline 12 enters in hot water line 13 amount mixed with hot water so that hot water temperature disclosure satisfy that
User needs, and improves the flexibility of lower water temperature, improves the comfort level that user uses.
Preferably, the second control valve 17 and the heating pipeline in parallel with the second control valve 17 are provided with hot water line 13
18, residual heat of electric power plant recovery heating system also includes heater 19, and heating pipeline 18 flows through heater 19.When in hot water line 13
When water temperature can not meet user's needs, the second control valve 17 can be now closed, makes to heat again in the heated device 19 of hot water stream
Heating, so that the water temperature in hot water line 13 disclosure satisfy that user's needs.During water temperature is adjusted, can also be controlled
The aperture of two control valves 17, so as to control heating water so that water temperature can preferably meet needs, while can reduce heating
The heating power consumption of device 19.
Preferably, the heat source side of heater 19 is connected to the steam output end of steam turbine 2, can utilize in steam turbine 2
Steam heat reheats to the hot water in hot water line 13, and without making heater 19 to hot water by modes such as electrical heating
Hot water in pipeline 13 is reheated, and reduce further energy resource consumption, has saved the energy.
The arrival end of boiler of power plant 1 is provided with oxygen-eliminating device 20, can be removed to entering the condensed water in boiler of power plant 1
Oxygen, avoid condensed water from aoxidizing boiler of power plant 1, effective protection is formed to boiler of power plant 1, extend the use of boiler of power plant 1
Life-span.
In the entrance point of cold water pipeline 12, filter 21 can also be set, so as to be filtered to the water source that user uses,
Avoid debris etc. from entering oral siphon water pipe is caused to damage, also avoid water quality unclean and user's body is damaged, improve system
Security when system uses.
User terminal can be multiple, and multiple user terminals are arranged in parallel, so that residual heat of electric power plant recovery heating system can be with
Hot water is provided for multiple users simultaneously, can meet the needs of more users simultaneously.
With enough power during in order to ensure system operation, cooled down in hot water line 13, the first cooling line 4, second
Pump machine 22 is provided with least one of pipeline 7, so as to provide enough power for the flowing of steam or water, ensures system
Normal operation.
Pump machine 22 can also be set in the entrance point of boiler of power plant 1, so as to be provided for the condensate water circulatory in boiler of power plant 1
Power.
Certainly, above is the preferred embodiment of the present invention.It should be pointed out that for those skilled in the art
For, on the premise of its general principles are not departed from, some improvements and modifications can also be made, these improvements and modifications
It is considered as protection scope of the present invention.
Claims (8)
1. a kind of residual heat of electric power plant reclaims heating system, for absorbing the waste heat of boiler of power plant (1), it is characterised in that including：
Steam turbine (2), the boiler of power plant (1) is connected to, and for sucking steam caused by the boiler of power plant (1)；
Absorption heat pump (3), including generator and condenser, the generator pass through the first cooling line (4) and the steamer
Machine (2) connects, and first cooling line (4) after generator heat exchange with being connected to the boiler of power plant (1), the condensation
Device to treat heating plant (5) carry out heat supply；
The first condensate tank is provided with the first cooling line (4) between the generator and the boiler of power plant (1)
(6)；
The steam turbine (2) is also connected by the second cooling line (7) with the generator, on second cooling line (7)
Steam chest (8) is provided with, the steam (vapor) outlet end of the steam chest (8) is connected with the steam inlet end of the generator, the hair
The condensation-water drain end of raw device is connected with the condensing water inlet end of the steam chest (8).
2. residual heat of electric power plant according to claim 1 reclaims heating system, it is characterised in that the residual heat of electric power plant reclaims heat supply
System also includes cooling system (9), and the cooling system (9) is in parallel with the absorption heat pump (3), the cooling system (9)
Entrance point be connected with the steam (vapor) outlet end of the steam chest (8), the port of export of the cooling system (9) and the steam chest
(8) condensing water inlet end connection, the entrance point of the cooling system (9) and the port of export at least one end are provided with the first control valve
(10)。
3. residual heat of electric power plant according to claim 1 reclaims heating system, it is characterised in that the condensation of the steam chest (8)
The second condensate tank (11) is provided with pipeline between water out and the boiler of power plant (1).
4. residual heat of electric power plant according to any one of claim 1 to 3 reclaims heating system, it is characterised in that described to wait to supply
Thermal (5) includes cold water pipeline (12), hot water line (13) and user terminal (14), and the cold water pipeline (12) is connected to described
Between cooling water inlet end on user terminal (14) and the condenser, the hot water line (13) is connected to the user terminal (14)
Between the hot water outlet end on the condenser.
5. residual heat of electric power plant according to claim 4 reclaims heating system, it is characterised in that the cold water pipeline (12) and institute
State and regulation pipeline (15) is connected between hot water line (13), regulating valve (16) is provided with the regulation pipeline (15).
6. residual heat of electric power plant according to claim 4 reclaims heating system, it is characterised in that is set on the hot water line (13)
It is equipped with the second control valve (17) and the heating pipeline (18) in parallel with second control valve (17), the residual heat of electric power plant recovery
Heating system also includes heater (19), and the heating pipeline (18) flows through the heater (19).
7. residual heat of electric power plant according to claim 6 reclaims heating system, it is characterised in that the thermal source of the heater (19)
End is connected to the steam output end of the steam turbine (2).
8. residual heat of electric power plant according to claim 1 reclaims heating system, it is characterised in that boiler of power plant (1) enters
Mouth end is provided with oxygen-eliminating device (20).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610273786.3A CN105953424B (en) | 2016-04-27 | 2016-04-27 | Residual heat of electric power plant reclaims heating system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610273786.3A CN105953424B (en) | 2016-04-27 | 2016-04-27 | Residual heat of electric power plant reclaims heating system |
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| CN105953424A CN105953424A (en) | 2016-09-21 |
| CN105953424B true CN105953424B (en) | 2017-12-26 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108087949A (en) * | 2017-12-22 | 2018-05-29 | 芜湖德司节能科技有限公司 | A kind of high-efficiency steam heat supply and residual neat recovering system |
| CN109681943A (en) * | 2018-12-24 | 2019-04-26 | 珠海格力电器股份有限公司 | Heating system |
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| JPH11173109A (en) * | 1997-12-05 | 1999-06-29 | Pado:Kk | Power generation and hot water supply system |
| JP2007064050A (en) * | 2005-08-30 | 2007-03-15 | Hitachi Eng Co Ltd | Waste heat utilizing facility for steam turbine plant |
| CN101793171A (en) * | 2009-12-21 | 2010-08-04 | 江苏双良空调设备股份有限公司 | Combined heat and power system for directly recovering exhaust afterheat of power station steam turbine by absorption heat pump |
| CN102147123A (en) * | 2010-02-10 | 2011-08-10 | 同方川崎空调设备有限公司 | Waste heat recovery type heating system of initial station |
| CN102149985A (en) * | 2008-11-13 | 2011-08-10 | 永日泵科技株式会社 | Apparatus for recovering vent steam and drain |
| WO2012032557A1 (en) * | 2010-09-06 | 2012-03-15 | 株式会社 日立製作所 | Gas turbine power generation system |
| CN203769869U (en) * | 2014-01-06 | 2014-08-13 | 杭州沃润节能科技有限公司 | Waste heat recovery system for power plant |
-
2016
- 2016-04-27 CN CN201610273786.3A patent/CN105953424B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11173109A (en) * | 1997-12-05 | 1999-06-29 | Pado:Kk | Power generation and hot water supply system |
| JP2007064050A (en) * | 2005-08-30 | 2007-03-15 | Hitachi Eng Co Ltd | Waste heat utilizing facility for steam turbine plant |
| CN102149985A (en) * | 2008-11-13 | 2011-08-10 | 永日泵科技株式会社 | Apparatus for recovering vent steam and drain |
| CN101793171A (en) * | 2009-12-21 | 2010-08-04 | 江苏双良空调设备股份有限公司 | Combined heat and power system for directly recovering exhaust afterheat of power station steam turbine by absorption heat pump |
| CN102147123A (en) * | 2010-02-10 | 2011-08-10 | 同方川崎空调设备有限公司 | Waste heat recovery type heating system of initial station |
| WO2012032557A1 (en) * | 2010-09-06 | 2012-03-15 | 株式会社 日立製作所 | Gas turbine power generation system |
| CN203769869U (en) * | 2014-01-06 | 2014-08-13 | 杭州沃润节能科技有限公司 | Waste heat recovery system for power plant |
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| CN105953424A (en) | 2016-09-21 |
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