CN206905080U - A kind of heat pump heat distribution system using across the season storage power taking factory exhaust steam residual heat of soil - Google Patents
A kind of heat pump heat distribution system using across the season storage power taking factory exhaust steam residual heat of soil Download PDFInfo
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- CN206905080U CN206905080U CN201720808505.XU CN201720808505U CN206905080U CN 206905080 U CN206905080 U CN 206905080U CN 201720808505 U CN201720808505 U CN 201720808505U CN 206905080 U CN206905080 U CN 206905080U
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Abstract
A kind of heat pump heat distribution system using across the season storage power taking factory exhaust steam residual heat of soil, including the double drive units of Steam Turbine, condenser, cooling tower/Air-Cooling Island, heat exchangers for district heating and water water- to-water heat exchanger, thermoelectricity, soil heat exchanger, water circulating pump, and above-mentioned each equipment is connected to realize that soil storage takes the vapour system, heat supply network water system and circulation of exhaust steam residual heat.Use the heat supply method of the system for：Once net backwater was heated into high-temperature-hot-water and electric power by heat exchangers for district heating and drove thermoelectricity is double to drive units, the heat heat supply that extraction soil stores jointly winter.Low Soil Temperature backwater is introduced power plant by summer, reclaims exhaust steam in steam turbine waste heat by condenser, thermal substation soil heat exchanger and soil heat exchange are re-fed into after heating, stores heat.Its advantage is：On the one hand power plant's heat capacity is improved by cross-season heat-storage, on the other hand reduces the influence of winter system power consumption and summer to generated energy, additionally due to realizing concurrent heating using existing concentration pipe network, system investments are greatly reduced.
Description
Technical field
The invention belongs to exhaust steam of electric power plant field of waste heat utilization, and in particular to one kind takes exhaust steam of electric power plant using across the season storage of soil
The heat pump heat distribution system of waste heat.
Background technology
Soil source heat pump Technical comparing is ripe, and application conditions require annual hot and cold load equilibrium, therefore be mainly used in as far as possible
Hot-summer and cold-winter area.And for cold district and severe cold area, winter thermal load demands are much larger than summer refrigeration duty demand, soil
Source heat pump technology application is restricted.These regional cogeneration units are more, and conventional cogeneration of heat and power mode also faces heat supply
The problem of scarce capacity.Abundant exhaust steam in steam turbine residual heat resources are contained in power plant, if the exhaust steam residual heat by summer turbine exhaust
Store into soil, then can effectively realize system concurrent heating to balance winter heat demand so that apply soil source heat pump in this area
Technology is possibly realized.Meanwhile by recycling exhaust steam residual heat, the heat capacity of power plant will also be increased dramatically.
Conventional soil source heat pump technology winter is larger using electric compression type heat pump extraction soil thermal storage amount, power consumption.
The system of Solar-ground source heat pump cooperation, summer is soil concurrent heating by solar thermal collector, although being avoided that whole year
The problem of heat is unbalance, but system power consumption can also be further in the case that system investments are larger, floor space is big, and weather is bad
Increase, system operation expense are still higher.And if thermal substation is using the double drive machines of thermoelectricity of high-temperature-hot-water and electric power as driving force
Group extraction soil thermal storage amount, its efficiency is higher than electric compression type heat pump, so as to reduce system operation cost.In summer, soil is utilized
Low-temperature return water cooling exhaust steam after earth heat exchange, increases the generating capacity of unit, while by reclaiming exhaust steam residual heat, utilization is existing
Central heating network realizes that soil concurrent heating significantly reduces system investments, may be such that system heat capacity, heat supply efficiency, heat supply warp
Ji property etc. is obviously improved.
The content of the invention
To solve, conventional soil source heat pump application conditions are limited, power plant's heat capacity is insufficient, system power consumption is big, summer shadow
The technical problems such as generated energy is big, system investments are big, floor space is big are rung, the present invention is proposed exhaust steam of electric power plant UTILIZATION OF VESIDUAL HEAT IN and soil
Cross-season heat-storage organically combines, there is provided a kind of heat pump heat distribution system using across the season storage power taking factory exhaust steam residual heat of soil.This is
System substitutes traditional electric compression type heat pump, extraction with the double units (pump module containing absorption type heat and compression type heat pump module) that drive of thermoelectricity
Soil stores heat secondary network hot net water, and heat capacity is largely increased.Reduce the power consumption of Winter heat supply, summer
Low-temperature return water recovery power plant steam turbine exhaust steam residual heat is introduced using existing concentration heat supply network, on the one hand adds unit generation ability,
On the other hand system investments have been saved.Annual system overall operation efficiency is increased dramatically.
To solve the above problems, the technical solution used in the present invention is：
A kind of heat pump heat distribution system using across the season storage power taking factory exhaust steam residual heat of soil, including the steam turbine of exhaust steam is provided
Group, the condenser for reclaiming exhaust steam residual heat, the cooling tower/Air-Cooling Island for discharging delayed heat, the heat supply network heating for heating once net backwater
Device, the double soil heat exchangers for driving unit, the water-water heat exchanger of heat supply network heat exchange and soil heat exchange of thermoelectricity for extracting soil thermal storage amount
And water circulating pump, and the above-mentioned each equipment of connection with realize soil store the vapour system for taking exhaust steam residual heat, heat supply network water system and
Circulation, wherein：
1) in the winter time under supplying thermal condition, for vapour system, Steam Turbine draw gas through pipeline and heat exchangers for district heating draw gas into
Mouth connects, and the condensate that draws gas, which passes through to draw gas with heat exchangers for district heating, condenses the pipeline return power plant original condensation water system that water out is connected
System；Steam Turbine exhaust steam is connected through pipeline with condenser exhaust steam entrance, and exhaust steam condensate with condenser exhaust steam condensate by going out
The pipeline of mouth connection returns to power plant's original condensate system；
For heat supply network water system, once net water return pipeline, which is sequentially connected, is followed by heat exchangers for district heating hot water inlet, heat supply network adding
Hot device hot water outlet is connected to the double drive unit absorption heat pump module generator entrances of thermoelectricity through pipeline successively, and thermoelectricity is double to drive units
The outlet of absorption heat pump module generator is connected through pipeline with water-water heat exchanger primary side hot water inlet, and water-water heat exchanger is once
Side hot water outlet is connected to once net water return pipeline through pipeline, wherein, valve is set respectively in pipeline P2, P4, P5, P7, P9
V1, V4, V5, V7, V8, it is connected between pipeline P3 and pipeline P6 in by-pass line P23, by-pass line P23 and valve is set
V12, secondary network water return pipeline are connected with the double unit compression heat pump module condensate device entrances that drive of thermoelectricity, and thermoelectricity is double to drive unit compression
Formula heat pump module condensator outlet connects the double drive unit absorption type heat pump module absorber entrances of thermoelectricity, the double drive machines of thermoelectricity through pipeline
The outlet of group absorption heat pump module condensate device is connected with water-water heat exchanger secondary side hot water inlet, water-water heat exchanger secondary side heat
Water out connecting secondary net water supply line；Described valve V1, V4, V5, V7, V8 are opened, and valve V12 is closed；
For circulation, soil heat exchanger outlet passes sequentially through the double units that drive of pipeline P14, P10 connection thermoelectricity and absorbed
Formula heat pump module evaporator inlet, the double unit absorption type heat pump module evaporator outlets that drive of thermoelectricity have two kinds of connected modes, a kind of
It is that the double unit absorption type heat pump module evaporator outlets that drive of thermoelectricity drive unit compression heat pump mould by the way that pipeline P11 connections thermoelectricity is double
Block evaporator inlet, the double unit compression type heat pump module evaporator outlets that drive of thermoelectricity change through pipeline P12, P13 connection soil successively
Hot device entrance；Another kind is directly to connect soil heat exchanger entrance by pipeline P12, P13；Wherein, valve is set on pipeline P10
Door V9, sets valve V10 in pipeline P12, and the water circulating pump 8 that circulation provides power, institute are arranged in pipeline P13
Valve V9, V10 is stated to open；
2) in the case where summer residual heat reclaims operating mode, for vapour system, Steam Turbine exhaust steam enters through pipeline and condenser exhaust steam
Mouth connection, exhaust steam condensate pass through the pipeline return power plant original condensate system for condensing water out with condenser exhaust steam and being connected；
For heat supply network water system, once net water return pipeline P1 connects condenser hot net water with pipeline through valve V2 successively and entered
Mouthful, condenser heat supply network water out is successively through pipeline, valve V3 connections once net water return pipeline P3, and once net water return pipeline P3 is successively
It is connected to through by-pass line P23, pipeline P6, P24, pipeline P13 on the pipeline before soil heat exchanger entrance, soil heat exchanger outlet
Once net water return pipeline P1 is connected to through pipeline P14, P25, valve V6 is set in pipeline P24, valve V11 is set in pipeline P25,
Wherein valve V2, V3, V6, V11, V12 is opened, and valve V1, V4, V5, V7, V8, V9, V10 are turned off.
Further, Steam Turbine can be one group, two groups or multigroup, and every group is correspondingly arranged a condenser and one
Platform heat exchangers for district heating, and Steam Turbine can be wet type cooling unit or indirect air cooling unit.
Further, to clammy or indirect air cooling unit, cooling water water outlet is provided with the hot net water inlet tube of condenser
Pipeline, cooling water inlet pipe road is provided with the heat supply network water outlet pipe of condenser, and be respectively provided with more than regulating system recovery
The valve of heat；To Air-cooled Unit, exhaust steam pipeline is provided with the exhaust steam inlet tube of condenser, exhaust steam pipeline, which is provided with, to be used to adjust
The valve of section system recovery waste heat amount.
Further, in circulation, the soil heat exchanger of recirculated water and soil heat exchange uses multigroup cascade.
It is using beneficial effect caused by above-mentioned technical proposal：
To take 1. instant invention overcomes the cold or summer in severe cold area winter and deposit the unbalanced problem of heat, more than Steam Turbine exhaust steam
Heat is used for soil cross-season heat-storage, and exhaust steam residual heat is organically combined using technology and soil source heat pump technology, realizes a variety of clear
The clean energy is complementary.
2. by reclaiming Steam Turbine exhaust steam residual heat, being substantially improved for winter power plant's heat capacity is realized.
3. storing heat using the double unit extraction soil that drive of thermoelectricity, system power consumption is reduced, operating cost reduces, heat supply
Efficiency is further lifted.
4. cooling down Steam Turbine exhaust steam by introducing low-temperature return water, summer power plants generating electricity ability is improved.
5. summer soil concurrent heating is realized using existing central heating network, it is big compared to conventional soil source heat pump system, investment
Width is reduced and taken up an area few.
Brief description of the drawings
Fig. 1 is that a kind of heat pump heat distribution system flow chart using across the season storage power taking factory exhaust steam residual heat of soil of the invention is (wet
Cold or indirect air cooling system)；
Fig. 2 is that a kind of heat pump heat distribution system flow chart using across the season storage power taking factory exhaust steam residual heat of soil of the present invention is (straight
Connect air cooling system)；
Fig. 3 be a kind of heat pump heat distribution system flow chart using across the season storage power taking factory exhaust steam residual heat of soil of the invention (no
Pump module containing compression type heat)；
Wherein：1. Steam Turbine, 2. condensers, 3. cooling towers/Air-Cooling Island, 4. heat exchangers for district heatings, 5. thermoelectricity are double to drive unit,
6. water-water heat exchanger, 7. soil heat exchangers, 8. water circulating pumps, 21. condenser heat supply network water inlets, 22. condenser hot net waters go out
Mouthful, 23. condenser exhaust steam entrances, 24. condenser exhaust steam condense water out, 41. heat exchangers for district heating hot water inlets, and 42. heat supply networks add
Hot device hot water outlet, 43. heat exchangers for district heating extraction entrances, 44. heat exchangers for district heatings, which draw gas, condenses water out, the double drive machines of 51. thermoelectricity
Group absorption heat pump module generator entrance, 52. thermoelectricity are double to drive the outlet of unit absorption heat pump module generator, and 53. thermoelectricity are double
Unit absorption type heat pump module evaporator inlet is driven, 54. thermoelectricity are double to drive unit absorption type heat pump module evaporator outlet, 55. heat
Electric double drive unit compression type heat pump module evaporator inlets, 56. thermoelectricity are double to drive unit compression type heat pump module evaporator outlets,
57. thermoelectricity is double to drive unit compression heat pump module condensate device entrance, the double unit compression heat pump module condensate devices that drive of 58. thermoelectricity go out
Mouthful, 59. thermoelectricity are double to drive unit absorption type heat pump module absorber entrance, and 60. thermoelectricity are double to drive unit absorption heat pump module condensate
Device exports, 61. water-water heat exchanger primary side hot water inlets, 62. 63. water of water-water heat exchanger primary side hot water outlet-water heat exchange
Device secondary side hot water inlet, 64. water-water heat exchanger secondary side hot water outlets, 71. soil heat exchanger entrances, 72. soil heat exchangers
Outlet, AHP. thermoelectricity is double to drive unit absorption type heat pump module, and CP. thermoelectricity is double to drive unit compression type heat pump module.
Embodiment
Invention is described in further detail below in conjunction with the accompanying drawings：
The present invention is a kind of heat pump heat distribution system using across the season storage power taking factory exhaust steam residual heat of soil, including provides exhaust steam
Steam Turbine 1, the cooling tower/Air-Cooling Island 3, the heating once net backwater that reclaim the condenser 2 of exhaust steam residual heat, discharged delayed heat
Heat exchangers for district heating 4, the thermoelectricity that extracts soil thermal storage amount double drive unit 5, the water-water heat exchanger 6 and soil heat exchange of heat supply network heat exchange
Soil heat exchanger 7 and water circulating pump 8, and the above-mentioned each equipment of connection takes the steam system of exhaust steam residual heat to realize that soil stores
System, heat supply network water system and circulation, wherein：
1) in the winter time under supplying thermal condition, for vapour system, Steam Turbine draw gas through pipeline and heat exchangers for district heating draw gas into
Mouth connects, and the condensate that draws gas, which passes through to draw gas with heat exchangers for district heating, condenses the pipeline return power plant original condensation water system that water out is connected
System；Steam Turbine exhaust steam is connected through pipeline with condenser exhaust steam entrance, and exhaust steam condensate with condenser exhaust steam condensate by going out
The pipeline of mouth connection returns to power plant's original condensate system；
For heat supply network water system, once net water return pipeline, which is sequentially connected, is followed by heat exchangers for district heating hot water inlet, heat supply network adding
Hot device hot water outlet is connected to the double drive unit absorption heat pump module generator entrances of thermoelectricity through pipeline successively, and thermoelectricity is double to drive units
The outlet of absorption heat pump module generator is connected through pipeline with water-water heat exchanger primary side hot water inlet, and water-water heat exchanger is once
Side hot water outlet is connected to once net water return pipeline through pipeline, wherein, valve is set respectively in pipeline P2, P4, P5, P7, P9
V1, V4, V5, V7, V8, it is connected between pipeline P3 and pipeline P6 in by-pass line P23, by-pass line P23 and valve is set
V12, secondary network water return pipeline are connected with the double unit compression heat pump module condensate device entrances that drive of thermoelectricity, and thermoelectricity is double to drive unit compression
Formula heat pump module condensator outlet connects the double drive unit absorption type heat pump module absorber entrances of thermoelectricity, the double drive machines of thermoelectricity through pipeline
The outlet of group absorption heat pump module condensate device is connected with water-water heat exchanger secondary side hot water inlet, water-water heat exchanger secondary side heat
Water out connecting secondary net water supply line；Described valve V1, V4, V5, V7, V8 are opened, and valve V12 is closed；
For circulation, soil heat exchanger outlet passes sequentially through the double units that drive of pipeline P14, P10 connection thermoelectricity and absorbed
Formula heat pump module evaporator inlet, the double unit absorption type heat pump module evaporator outlets that drive of thermoelectricity have two kinds of connected modes, a kind of
It is that the double unit absorption type heat pump module evaporator outlets that drive of thermoelectricity drive unit compression heat pump mould by the way that pipeline P11 connections thermoelectricity is double
Block evaporator inlet, the double unit compression type heat pump module evaporator outlets that drive of thermoelectricity change through pipeline P12, P13 connection soil successively
Hot device entrance；Another kind is directly to connect soil heat exchanger entrance by pipeline P12, P13；Wherein, valve is set on pipeline P10
Door V9, sets valve V10 in pipeline P12, and the water circulating pump 8 that circulation provides power, institute are arranged in pipeline P13
Valve V9, V10 is stated to open；
2) in the case where summer residual heat reclaims operating mode, for vapour system, Steam Turbine exhaust steam enters through pipeline and condenser exhaust steam
Mouth connection, exhaust steam condensate pass through the pipeline return power plant original condensate system for condensing water out with condenser exhaust steam and being connected；
For heat supply network water system, once net water return pipeline P1 connects condenser hot net water with pipeline through valve V2 successively and entered
Mouthful, condenser heat supply network water out is successively through pipeline, valve V3 connections once net water return pipeline P3, and once net water return pipeline P3 is successively
It is connected to through by-pass line P23, pipeline P6, P24, P13 on the pipeline before soil heat exchanger entrance, soil heat exchanger is exported through pipe
Road P14, P25 are connected to once net water return pipeline P1, and valve V6 is set in pipeline P24, valve V11 is set in pipeline P25, wherein
Valve V2, V3, V6, V11, V12 are opened, and valve V1, V4, V5, V7, V8, V9, V10 are turned off.
In circulation, the soil heat exchanger of recirculated water and soil heat exchange uses multigroup cascade.
It is using existing central heating network to be discharged Steam Turbine in summer weary using the heat supply method of said system
Vapour waste heat is delivered to thermal substation and stored in soil, stores the heat in soil by thermoelectricity double drive unit extraction summers to supply in the winter time
Heat, the overall procedure of the heat supply method are：Winter is once confessed after net backwater is heated by the heat exchangers for district heating for being arranged on power plant, and one
Thermal substation is delivered in secondary net water supply, and heat heat supply is stored by the double unit extraction soil that drive of high-temperature-hot-water and driven by power thermoelectricity.Summer
Low-temperature primary net backwater is introduced into power plant's recovery Steam Turbine exhaust steam residual heat, using existing central heating network to soil concurrent heating.
Idiographic flow is as follows：
1) in the winter time under supplying thermal condition, for vapour system, Steam Turbine, which is drawn gas, introduces heat exchangers for district heating heating hot net water,
Condensate returns to power plant's original condensate system after extraction heat；Steam Turbine exhaust steam condenses into condenser and discharges heat, by cold
But tower is dissipated in environment, and exhaust steam condensate returns to power plant's original condensate system；
For heat supply network water system, once net backwater, which returns, delivers to thermal substation driving thermoelectricity after power plant is heated by heat exchangers for district heating
Double heat secondary network backwater for being stored in summer of absorption type heat pump modules extraction soil for driving units, then again with water-water
Power plant is returned after heat exchanger heat exchange cooling；Secondary network backwater is successively by double absorption type heat pump module, the water-water for driving unit of thermoelectricity
Heat exchanger supplies user after heating up step by step；
For circulation, recirculated water is with after soil heat exchange heating, the double suctions for driving unit of thermoelectricity are sent into by water circulating pump
Receipts formula heat pump module cools, and again returns to soil afterwards and continues to exchange heat, such iterative cycles；
2) in the case where summer residual heat reclaims operating mode, for vapour system, Steam Turbine exhaust steam condenses and discharged into condenser
Once net backwater, exhaust steam condensate return to power plant's original condensate system to heat；
For heat supply network water system, low-temperature primary net backwater is exchanged heat into condenser with Steam Turbine exhaust steam, once net
Thermal substation is delivered to after backwater heating and the soil heat exchanger of circulation is exchanged heat with soil, and condenser is returned again to after cooling
Exchanged heat with Steam Turbine exhaust steam, such iterative cycles.
In the above method, the absorption type heat pump modules except driving units using driving thermoelectricity pair after the heating of once net backwater,
Also using the double compression type heat pump modules for driving unit of driven by power thermoelectricity, the common heat two for extracting soil and being stored in summer
Secondary net backwater, secondary network backwater first pass through the heating of compression type heat pump module and enter back into the heating of absorption type heat pump module, certainly, if
Secondary network heat demand is relatively low, and the double units that drive of thermoelectricity can only open absorption type heat pump module, to reduce investment outlay, the double drive machines of thermoelectricity
Group can also only retain absorption type heat pump module.
Embodiment 1：
As shown in figure 1, the present embodiment is clammy or indirect air cooling unit for thermal source, and secondary network heating parameter is higher
The power plant of (such as radiator), Steam Turbine (thermal source) can be one group, two groups or multigroup, and every group is correspondingly arranged a condensing
Device and a heat exchangers for district heating.Illustrated by taking next Steam Turbine as an example, Winter heat supply operating mode and summer residual heat recovery work
The type of attachment of condition system is as follows：
In the winter time under supplying thermal condition, for vapour system, Steam Turbine is drawn gas to be added into pipeline P26, pipeline P26 with heat supply network
Hot device extraction entrance 43 is connected, and draw gas condensing water conduit P27 and heat exchangers for district heating, which draw gas, to be condensed water out 44 and be connected, condensation of drawing gas
Water returns to power plant's original condensate system.Steam Turbine exhaust steam is connected through pipeline P28 with condenser exhaust steam entrance 23, exhaust steam condensate
Pipeline P29 condenses water out 24 with condenser exhaust steam and is connected, and exhaust steam condensate returns to power plant's original condensate system.
In the winter time under supplying thermal condition, for heat supply network water system, once net water return pipeline P1, P2, P3 are sequentially connected, and are being entered
It is divided into two-way, i.e. pipeline P4 and by-pass line P23 through threeway before heat exchangers for district heating, wherein, pipeline P4 and heat exchangers for district heating heat
Water inlet 41 is connected, and heat exchangers for district heating hot water outlet 42 is connected with pipeline P5, and pipeline P5 and pipeline P23 converges once to net water supply
Pipeline P6, to thermal substation after through threeway be further divided into two-way, i.e. pipeline P7 and pipeline P24, wherein, pipeline P7 with thermoelectricity is double drives units
Absorption heat pump module generator entrance 51 connects, and pipeline P8 connects the double drive unit absorption heat pump module generators of thermoelectricity respectively
Outlet 52 and water-water heat exchanger primary side hot water inlet 61, pipeline P9 are connected with water-water heat exchanger primary side hot water outlet 62,
Pipeline P9 and pipeline P25 converges returns to power plant for once net water return pipeline P1.Pipeline P24 through threeway distinguish connecting pipe P12,
P13.Secondary network water return pipeline P15 is connected with the double unit compression heat pump module condensate device entrances 57 that drive of thermoelectricity, pipeline P16 difference
Connect the double drive unit compression heat pump module condensate device outlets 58 of thermoelectricity and thermoelectricity pair drives unit absorption type heat pump module absorber
Entrance 59, it is secondary with water-water heat exchanger that pipeline P17 connects the double drive unit absorption heat pump module condensate device outlets 60 of thermoelectricity respectively
Side hot water inlet 63 is connected, and secondary network water supply line P18 is connected with water-water heat exchanger secondary side hot water outlet 64；Wherein, in pipe
Valve V1, V4, V5, V7, V8 are set respectively in road P2, P4, P5, P7, P9, valve V12 is set in by-pass line P23.
In the winter time under supplying thermal condition, for circulation, pipeline P10 steams with the double unit absorption type heat pump modules that drive of thermoelectricity
Hair device entrance 53 connects, and sets valve V9, pipeline P11 to be steamed respectively with the double unit absorption type heat pump modules that drive of thermoelectricity on pipeline P10
Send out device outlet 54 and the double unit compression type heat pump module evaporator inlets 55 that drive of thermoelectricity connect, pipeline P12 drives units with thermoelectricity pair
Compression type heat pump module evaporator outlet 56 connects, and sets valve V10, pipeline P12 and pipeline P24 to converge for pipe on pipeline P12
Water circulating pump 8 is set on road P13, pipeline P13 and provides power as the circulatory system, then is connected with soil heat exchanger entrance 71, pipeline P14
It is connected with soil heat exchanger outlet 72, pipeline P14 and pipeline P25 converges connecting pipe P10.
In the case where summer residual heat reclaims operating mode, for vapour system, Steam Turbine exhaust steam enters pipeline P28 and condenser exhaust steam
Entrance 23 connects, and exhaust steam condensing water conduit P29 condenses water out 24 with condenser exhaust steam and is connected, and exhaust steam condensate returns to former condense
Water system.
In the case where summer residual heat reclaims operating mode, for heat supply network water system, once net water return pipeline P1 is through threeway and pipeline P19 companies
Connect, pipeline P19 and pipeline P30 converge for pipeline P20, are connected with condenser heat supply network water inlet 21, pipeline P21 and condenser heat supply network
Water out 22 connects, and pipeline P21 is divided into pipeline P31 and pipeline P22 through threeway, then is connected through threeway with pipeline P3.Pipeline P3 is passed through
Threeway is connected with by-pass line P23, then is connected through threeway with heat supply network water supply line P6.Through threeway and pipeline P24 after to thermal substation
Connection, pipeline P24 are connected through threeway with pipeline P13 again.Pipeline P13 is connected with soil heat exchanger entrance 71, pipeline P14 and soil
Heat exchanger exit 72 is connected, and pipeline P14 is connected through threeway with pipeline P25, then is connected through threeway with once net water return pipeline P1；Its
In valve V2, V3, V6, V11 are set respectively on pipeline P19, P22, P24, P25.
Winter heat supply operating mode described above and summer residual heat recovery operating mode the course of work be respectively：
In the winter time under supplying thermal condition, Steam Turbine is drawn gas heats once net backwater into heat exchangers for district heating, is drawn gas after heat release
Condensate returns to power plant's original condensate system.Steam Turbine exhaust steam is exchanged heat into condenser, and the heat after heat exchange is arranged through cooling tower
Put into environment, exhaust steam condensate is through returning to power plant's original condensate system after heat release.Once net backwater heats through heat exchangers for district heating
After confess, deliver to that thermoelectricity is double to drive unit absorption heat pump module drive generators, then enter back into water-water heat exchanger heat exchange, change
Net backwater is formed once after heat and returns to power plant.Secondary network backwater initially enters the double compression type heat pump module heatings for driving unit of thermoelectricity
Afterwards, then further heated up into the double absorption type heat pump modules for driving unit of thermoelectricity, then after water-water heat exchanger further heats up
Supply user.Wherein, the double compression type heat pump modules and absorption type heat pump module for driving units of thermoelectricity, by circulation from burying
Soil heat exchanger heat exchange extraction summer in soil stores the exhaust steam residual heat in soil, and recirculated water is exported by soil heat exchanger
The double absorption type heat pump modules for driving unit of thermoelectricity are introduced into through water circulating pump to cool, and enter back into the double compression type heats for driving unit of thermoelectricity
Pump module further cools, and soil heat exchanger entrance is entered after cooling, native with soil heat exchange, such iterative cycles, extraction again
The exhaust steam residual heat stored in earth.Wherein valve V1, V4, V5, V7, V8, V9, V10 is opened, and valve V2, V3, V6, V11, V12 are closed
Close, pass through control valve V13, V14 aperture regulation cooling tower heat dissipation capacity.
In the case where summer residual heat reclaims operating mode, the exhaust steam of Steam Turbine exchanges heat into condenser, and the heat after heat exchange is used to add
Hot once net backwater, and deliver to thermal substation to store in soil, through returning to, power plant is former to condense water system to exhaust steam condensate after heat release
System.After once net backwater enters condenser heat exchange heating, enter soil after piping P22, P3, P23, P6, P24, P13 successively
Heat exchanger, with after soil heat exchange, entering pipeline P25 by soil heat exchanger outlet 72, and converge to once in soil heat exchanger
Power plant is returned after net water return pipeline P1.Wherein valve V2, V3, V6, V11, V12 is opened, valve V1, V4, V5, V7, V8, V9, V10
Close, pass through control valve V13, V14 aperture regulation cooling tower heat dissipation capacity.
Embodiment 2：
As shown in Fig. 2 the present embodiment utilizes system for Direct Air-cooled Unit exhaust steam residual heat.Steam Turbine (thermal source) can be with
It it is one group, two groups or multigroup, every group is correspondingly arranged a condenser and a heat exchangers for district heating.System body equipment is matched somebody with somebody
Put, jet chimney, heat supply network waterpipe and circulating water pipeline type of attachment and Winter heat supply operating mode, summer residual heat recovery operating mode system
The method of operation of uniting is same as Example 1.
Difference from Example 1 is both exhaust steam cold end types of attachment difference：Unnecessary exhaust steam heat in embodiment 1
Radiating is taken away by cooling water outlet pipe road P30 and cooling water inlet pipe road P31, passes through control valve V13, V14 aperture regulation
Cooling tower heat dissipation capacity.And by setting exhaust steam pipeline P31 to introduce Air-Cooling Island on the exhaust steam inlet tube of condenser in the present embodiment
Radiating, and control valve V13 is set on exhaust steam pipeline P31, pass through control valve V13 aperture regulation Air-Cooling Island heat dissipation capacities.
Embodiment 3：
As shown in figure 3, the present embodiment is for the relatively low system (such as floor panel heating) of secondary network heating parameter, steam turbine
Group (thermal source) can be one group, two groups or multigroup, and every group is correspondingly arranged a condenser and a heat exchangers for district heating.System
Jet chimney, heat supply network waterpipe type of attachment and Winter heat supply operating mode, the summer residual heat recovery working condition system method of operation with reality
It is identical to apply example 1.
Difference from Example 1 is：Because secondary network heating parameter is relatively low, the double units that drive of thermoelectricity only remain absorption
Formula heat pump module, the connected mode of heat supply network water system and circulation is different under Winter heat supply operating mode, is specially：
To heat supply network water system, primary side connected mode is same as Example 1, and secondary side connected mode is slightly different.It is secondary
Net water return pipeline P15 is connected with the double unit absorption type heat pump module absorber entrances 59 that drive of thermoelectricity, eliminates the double drive units of thermoelectricity
The series connectors of compression heat pump module condensate device.
To circulation, thermoelectricity is double drive unit absorption type heat pump module evaporator outlets 54 directly by pipeline P12,
P13 connection soil heat exchangers entrance 71, eliminate the double series connectors for driving unit compression type heat pump module evaporator of thermoelectricity.
Each equipment is described as follows：
1. Steam Turbine, determined according to the output of cogeneration of heat and power, be common equipment；
2. condenser, being determined according to waste heat recovery volume and heating-up temperature, clammy or indirect air cooling system can use original equipment,
But operational factor must be checked.Direct air cooling system must be newly established, and be non-standard de-sign equipment；
It is common equipment 3. cooling tower/Air-Cooling Island, being determined by cooling steam amount；
4. heat exchangers for district heating, it is common equipment according to parameter and the heating load determination of drawing gas；
5. thermoelectricity is double to drive unit, determined according to once net, secondary network heat supply temperature, the soil moisture, be non-standard de-sign equipment；
It is common equipment 6. water-water heat exchanger, being determined according to heat exchange amount；
It is common equipment 7. soil heat exchanger, being determined according to heat exchange amount；
8. water circulating pump, determined according to circulating water flow and resistance, be common equipment.
Claims (4)
- A kind of 1. heat pump heat distribution system using across the season storage power taking factory exhaust steam residual heat of soil, it is characterised in that：It is weary including providing The Steam Turbine (1) of vapour, the condenser (2) for reclaiming exhaust steam residual heat, the cooling tower/Air-Cooling Island (3) for discharging delayed heat, heating one The heat exchangers for district heating (4) of secondary net backwater, the double drive units (5) of thermoelectricity for extracting soil thermal storage amount, the water-water heat exchanger of heat supply network heat exchange (6), taken with the soil heat exchanger (7) and water circulating pump (8) of soil heat exchange, and the above-mentioned each equipment of connection with realizing that soil stores Vapour system, heat supply network water system and the circulation of exhaust steam residual heat, wherein：1) in the winter time under supplying thermal condition, for vapour system, Steam Turbine (1) is drawn gas through pipeline and heat exchangers for district heating extraction entrance (43) connection, the condensate that draws gas, which passes through to draw gas with heat exchangers for district heating, condenses the former condensation of pipeline return power plant that water out (44) is connected Water system；Steam Turbine exhaust steam is connected through pipeline with condenser exhaust steam entrance (23), and exhaust steam condensate passes through and condenser exhaust steam The pipeline for condensing water out (24) connection returns to power plant's original condensate system；For heat supply network water system, once net water return pipeline (P1), (P2), (P3), (P4), which are sequentially connected, is followed by heat exchangers for district heating Hot water inlet (41), heat exchangers for district heating hot water outlet (42) are connected to the double drive units of thermoelectricity through pipeline (P5), (P6), (P7) successively Absorption heat pump module generator entrance (51), the double unit absorption heat pump module generator outlets (52) of driving of thermoelectricity are through pipeline (P8) it is connected with water-water heat exchanger primary side hot water inlet (61), water-water heat exchanger primary side hot water outlet (62) is through pipeline (P9) once net water return pipeline (P1) is connected to, wherein, valve is set respectively in pipeline (P2), (P4), (P5), (P7), (P9) Door (V1), (V4), (V5), (V7), (V8), are connected with by-pass line (P23), bypass pipe between pipeline (P3) and pipeline (P6) Valve (V12), secondary network water return pipeline and thermoelectricity double drive unit compression heat pump module condensate device entrances are set in road (P23) (57) connect, it is absorption through the double drive units of pipeline connection thermoelectricity that thermoelectricity pair drives unit compression heat pump module condensate devices outlet (58) Heat pump module absorber entrance (59), thermoelectricity is double to drive unit absorption heat pump module condensate device outlet (60) and water-water heat exchanger Secondary side hot water inlet (63) connects, water-water heat exchanger secondary side hot water outlet (64) connecting secondary net water supply line；The valve Door (V1), (V4), (V5), (V7), (V8) are opened, and valve (V12) is closed；For circulation, soil heat exchanger outlet (72) passes sequentially through the double units that drive of pipeline (P14) (P10) connection thermoelectricity and inhaled Receipts formula heat pump module evaporator inlet (53), the double unit absorption type heat pump module evaporator outlets (54) that drive of thermoelectricity have two kinds of connections Mode, one kind are that the double unit absorption type heat pump module evaporator outlets (54) that drive of thermoelectricity connect the double drives of thermoelectricity by pipeline (P11) Unit compression type heat pump module evaporator inlet (55), thermoelectricity is double to drive unit compression type heat pump module evaporator outlet (56) successively Through pipeline (P12), (P13) connection soil heat exchanger entrance (71)；Another kind is directly to connect soil by pipeline (P12), (P13) Earth heat exchanger entrance (71)；Wherein, valve (V9) is set on pipeline (P10), valve (V10) is set in pipeline (P12), The water circulating pump (8) that circulation provides power is arranged in pipeline (P13), the valve (V9), (V10) are opened；2) in the case where summer residual heat reclaims operating mode, for vapour system, Steam Turbine exhaust steam is through pipeline and condenser exhaust steam entrance (23) connect, exhaust steam condensate passes through the pipeline return power plant original being connected with condenser exhaust steam condensation water out (24) and condenses water system System；For heat supply network water system, once net water return pipeline (P1) connects condenser heat supply network water inlet with pipeline through valve (V2) successively (21), condenser heat supply network water out (22) connects once net water return pipeline (P3) through pipeline, valve (V3) successively, once net backwater Pipeline (P3) is connected to soil heat exchanger entrance (71) through by-pass line (P23), pipeline (P6), (P24), pipeline (P13) successively On preceding pipeline, soil heat exchanger outlet (72) is connected to once net water return pipeline (P1), pipeline through pipeline (P14), (P25) (P24) valve (V6) is set in, valve (V11) is set in pipeline (P25), wherein valve (V2), (V3), (V6), (V11), (V12) open, valve (V1), (V4), (V5), (V7), (V8), (V9), (V10) are turned off.
- 2. a kind of heat pump heat distribution system using across the season storage power taking factory exhaust steam residual heat of soil according to claim 1, its It is characterised by：Steam Turbine can be one group, two groups or multigroup, and every group is correspondingly arranged a condenser and a heat supply network adds Hot device, and Steam Turbine can be wet type cooling unit or indirect air cooling unit.
- 3. a kind of heat pump heat distribution system using across the season storage power taking factory exhaust steam residual heat of soil according to claim 2, its It is characterised by：To clammy or indirect air cooling unit, cooling water outlet pipe road is provided with the hot net water inlet tube of condenser, solidifying The heat supply network water outlet pipe of vapour device is provided with cooling water inlet pipe road, and is respectively provided with the valve of regulating system recovery waste heat amount Door；To Air-cooled Unit, exhaust steam pipeline is provided with the exhaust steam inlet tube of condenser, exhaust steam pipeline is provided with returns for regulating system Receive the valve of excess heat.
- A kind of 4. heat pump heat supply using across the season storage power taking factory exhaust steam residual heat of soil according to claim any one of 1-3 System, it is characterised in that：In circulation, the soil heat exchanger of recirculated water and soil heat exchange uses multigroup cascade.
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| CN201720808505.XU CN206905080U (en) | 2017-07-05 | 2017-07-05 | A kind of heat pump heat distribution system using across the season storage power taking factory exhaust steam residual heat of soil |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107300203A (en) * | 2017-07-05 | 2017-10-27 | 燕山大学 | Utilize the heat pump heat distribution system and method for across the season storage power taking factory exhaust steam residual heat of soil |
| CN115727384A (en) * | 2022-11-07 | 2023-03-03 | 华电电力科学研究院有限公司 | Heat supply system for realizing peak regulation and cross-season heat storage of thermoelectric unit and operation method |
-
2017
- 2017-07-05 CN CN201720808505.XU patent/CN206905080U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107300203A (en) * | 2017-07-05 | 2017-10-27 | 燕山大学 | Utilize the heat pump heat distribution system and method for across the season storage power taking factory exhaust steam residual heat of soil |
| CN107300203B (en) * | 2017-07-05 | 2023-08-29 | 燕山大学 | Heat pump heating system and method for accumulating waste heat of dead steam of power plant by utilizing soil in cross-season mode |
| CN115727384A (en) * | 2022-11-07 | 2023-03-03 | 华电电力科学研究院有限公司 | Heat supply system for realizing peak regulation and cross-season heat storage of thermoelectric unit and operation method |
| CN115727384B (en) * | 2022-11-07 | 2024-02-06 | 华电电力科学研究院有限公司 | Heating system for realizing peak shaving and cross-season heat storage of thermoelectric unit and operation method |
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