CN108167914A - A kind of heating system - Google Patents
A kind of heating system Download PDFInfo
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- CN108167914A CN108167914A CN201810084547.2A CN201810084547A CN108167914A CN 108167914 A CN108167914 A CN 108167914A CN 201810084547 A CN201810084547 A CN 201810084547A CN 108167914 A CN108167914 A CN 108167914A
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- heat pump
- heating
- heat
- steam
- steam turbine
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 150
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 149
- 238000001816 cooling Methods 0.000 claims description 23
- 230000001105 regulatory effect Effects 0.000 claims description 14
- 238000009833 condensation Methods 0.000 claims description 9
- 230000005494 condensation Effects 0.000 claims description 9
- 230000005611 electricity Effects 0.000 claims description 9
- 239000000284 extract Substances 0.000 claims description 3
- 238000010521 absorption reaction Methods 0.000 abstract description 9
- 238000009434 installation Methods 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 14
- 230000009466 transformation Effects 0.000 description 13
- 238000000605 extraction Methods 0.000 description 9
- 230000005619 thermoelectricity Effects 0.000 description 9
- 239000002918 waste heat Substances 0.000 description 8
- 230000009471 action Effects 0.000 description 7
- 239000007789 gas Substances 0.000 description 6
- 238000010248 power generation Methods 0.000 description 6
- 239000008236 heating water Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 239000007788 liquid Substances 0.000 description 4
- 239000008400 supply water Substances 0.000 description 4
- 230000033228 biological regulation Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000001351 cycling effect Effects 0.000 description 1
- 238000006392 deoxygenation reaction Methods 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D3/00—Hot-water central heating systems
- F24D3/18—Hot-water central heating systems using heat pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D15/00—Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
- F01D15/10—Adaptations for driving, or combinations with, electric generators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D19/00—Details
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D3/00—Hot-water central heating systems
- F24D3/10—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D2200/00—Heat sources or energy sources
- F24D2200/12—Heat pump
- F24D2200/123—Compression type heat pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D2200/00—Heat sources or energy sources
- F24D2200/16—Waste heat
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D2220/00—Components of central heating installations excluding heat sources
- F24D2220/06—Heat exchangers
Abstract
The embodiment of the invention discloses a kind of heating system, which includes：Steam Turbine (11), heat pump assembly (12), circulating water device (13) and heating plant (14)；Steam Turbine (11) is connected with circulating water device (13), and circulating water device (13) absorbs heat from Steam Turbine (11)；Heat pump assembly (12) is connected with circulating water device (13), the heat in heat pump assembly (12) absorption cycle water installations (13)；Heating plant (14) is connected with heat pump assembly (12), and the heat transfer absorbed from circulating water device (13) to heating plant (14) is carried out heat supply by heat pump assembly (12).It by increasing heat pump assembly among Steam Turbine and circulating water device, solves the problems, such as to need Overall Reconstruction steam turbine during extension fired power generating unit heat capacity, it is simple to realize system structure, reasonable design, the advantageous effect of dependable performance.
Description
Technical field
The present embodiments relate to thermal power generation and energy-saving heating technical field more particularly to a kind of heating system.
Background technology
With national energy structural adjustment and resident's heating increase in demand, need that original fired power generating unit is needed to carry out skill
Art is transformed, and extends the heat capacity of original fired power generating unit.
At present, the heat capacity of original fired power generating unit is extended, is on the one hand by traditional pure condensed steam only for electric not heat supply
Wheel unit transform cogeneration units as, and mainly original pure condensate steam turbine is transform as steam extraction to the transformation of pure condensate Steam Turbine
Formula steam turbine so that steam turbine can extract a part of steam out for heating in intergrade；Or pure condensate steam turbine is transform as
Back pressure turbine, the exhaust steam pressure of back pressure turbine is higher, and the heat contained by steam discharge can be mostly used in heating.The opposing party
Face is to carry out capacity-increasing transformation to reaching the steam turbine of maximum steam extraction amount in original cogeneration units, by the side for increasing steam extraction amount
Formula extends heat capacity.
However, in existing modification scheme, it is required to carry out Overall Reconstruction to original Steam Turbine, the reconstruction scope is big,
Process is complicated, and the time is long, and investment is huge, is unfavorable for the propulsion of fired power generating unit transformation plan.
Invention content
The embodiment of the present invention provides a kind of heating system, changes without the steam turbine part to original fired power generating unit
It makes, it is possible to extend the heat capacity of original fired power generating unit, simple system, reasonable design.
An embodiment of the present invention provides a kind of heating system, which includes：Steam Turbine (11), heat pump assembly (12),
Circulating water device (13) and heating plant (14)；
Steam Turbine (11) is connected with circulating water device (13), and circulating water device (13) absorbs heat from Steam Turbine (11)
Amount；
Heat pump assembly (12) is connected with circulating water device (13), the heat in heat pump assembly (12) absorption cycle water installations (13)
Amount；
Heating plant (14) is connected with heat pump assembly (12), what heat pump assembly (12) will be absorbed from circulating water device (13)
Heat transfer to heating plant (14) carries out heat supply；
An embodiment of the present invention provides a kind of heating systems, increase heat pump dress among Steam Turbine and circulating water device
It puts, will not have any impact to the normal operation of original steam turbine；Heat pump assembly is added except Steam Turbine, utilizes cycle
Waste heat in water removes heating equipment, realizes the utilization of waste heat, and thermoelectricity decoupling is also achieved while improving capacity usage ratio.
Therefore, Overall Reconstruction steam turbine, the reconstruction scope are needed when the embodiment of the present invention solves extension thermal power steam turbine group heat capacity
Greatly, the problem of of high cost, can reduce the reconstruction scope, reduce improvement cost, and improved heating system structure is simple, and design is closed
Reason, dependable performance further improve capacity usage ratio, realize and meet fired power generating unit depth peak regulation need by thermoelectricity decoupling
The advantageous effect asked.
Description of the drawings
Fig. 1 is the first structure schematic diagram of the heating system in the embodiment of the present invention one；
Fig. 2 is the second structure diagram of the heating system in the embodiment of the present invention one；
Fig. 3 is the third structure diagram of the heating system in the embodiment of the present invention one；
Fig. 4 is the structure diagram of heat pump assembly in the heating system in the embodiment of the present invention one；
Fig. 5 is the first connected mode schematic diagram of heat pump assembly in the heating system in the embodiment of the present invention two；
Fig. 6 is the second connected mode schematic diagram of heat pump assembly in the heating system in the embodiment of the present invention two；
Fig. 7 is the structure diagram of the heating system in the embodiment of the present invention three.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining the present invention rather than limitation of the invention.It also should be noted that in order to just
Part related to the present invention rather than entire infrastructure are illustrated only in description, attached drawing.
Embodiment one
Fig. 1 is the first structure schematic diagram of the heating system in the embodiment of the present invention one.As shown in Figure 1, the system includes：
Steam Turbine (11), heat pump assembly (12), circulating water device (13) and heating plant (14)；
Steam Turbine (11) is connected with circulating water device (13), and circulating water device (13) absorbs heat from Steam Turbine (11)
Amount；
Heat pump assembly (12) is connected with circulating water device (13), the heat in heat pump assembly (12) absorption cycle water installations (13)
Amount；
Heating plant (14) is connected with heat pump assembly (12), what heat pump assembly (12) will be absorbed from circulating water device (13)
Heat transfer to heating plant (14) carries out heat supply.
In embodiments of the present invention, Steam Turbine (11) refers to the energy of steam being converted into the rotary dynamic of mechanical work
Power machinery group.In the embodiment of the present invention, Steam Turbine (11) can be pure condensed steam wheel unit, extraction-condensing steam turbine group or the back of the body
Press Steam Turbine.Wherein in pure condensate Steam Turbine, high-temperature steam enters steam turbine, weary after wherein each grade blade acting
Vapour fully enters coagulator and is condensed into water, and steam extraction is carried out without going past other units in addition to heat regenerative system.Heat pump assembly (12)
A kind of heat energy transfer by low level heat energy to high-order heat source device, at runtime its can from ambient enviroment draw heat
To be evaporated to heat transfer medium, temperature and pressure rises medium steam after compression, and high-temperature steam is when being condensed into liquid
The heat transfer released to the water in water tank, condensed heat transfer medium again back to evaporator, after be evaporated again, such as
This, which moves in circles, is achieved that the heat energy transfer of low level heat energy to high-order heat source.Circulating water device (13) is mainly that unit offer is cold
But water source improves Steam Turbine (11) efficiency.Heating plant (14), which refers to concentrate, conveys and distributes heating medium to heat user
Device.
Illustratively, the heating system in the embodiment of the present invention can include Steam Turbine (11), heat pump assembly (12), follow
Ring water installations (13) and heating plant (14).Steam Turbine (11) therein can be worked normally, and be done work using high-temperature steam
Power generation.High-temperature steam after acting power generation, is cooled to condensation water and continues to reenter next round cycle in Steam Turbine (11)
Become high-temperature steam again, enter Steam Turbine (11) acting power generation.High-temperature steam needs to borrow when being cooled to condensation water
Circulating water device (13) is helped to complete, therefore circulating water device (13) absorbs the heat in Steam Turbine (11).Heat pump assembly
(12) this partial heat that circulating water device (13) absorbs can be utilized to convey heat for heating plant (14) so that heating plant
(14) heating to user can be realized.
Further, referring to Fig. 1, Steam Turbine (11) includes：Steam turbine (111), generator (112), condenser (113)
With the first jet chimney (114)；Wherein, the first jet chimney (114) and steam turbine (111), generator (112) and condenser
(113) it is connected；
Heat pump assembly (12) includes：At least one heat pump (121), heat pump water inlet pipe (122) and heat pump outlet pipe (123)；
Wherein, heat pump water inlet pipe (122) and heat pump outlet pipe (123) with respectively with each heat pump (121) and circulating water device (13) phase
Even；
Circulating water device (13) includes：Cooling tower (131) and circulating water pipeline (132)；Wherein, circulating water pipeline (132)
It is connected with condenser (113) and cooling tower (131)；
Heating plant (14) includes：Heating equipment (141), heating feed pipe (142) and heating return pipe (143)；Wherein,
Heating feed pipe (142) and heating return pipe (143) are connected respectively with heat pump assembly (12) and heating equipment (141).
Further, the heat in the heating water supply absorption heat pump means (12) in heating feed pipe (142)；
Heating return pipe (143) will be delivered to by the heated heating return water of heat pump assembly (12) in heating plant (14),
Heat supply is carried out to heating equipment (141).
In a specific embodiment of the present invention, steam turbine (111) is the rotation that the energy of steam is converted into mechanical work
Formula dynamic power machine is mainly used as prime mover of power generation.Condenser (113) is that the steam discharge of steam turbine (111) is condensed into water
A kind of heat exchanger is mainly used in steam turbine (111) power plant, works with circulating water device (13) cooperation, this hair
It is illustrated by taking water-cooled condenser as an example in bright embodiment.First jet chimney (114) refers to connect steam turbine (111) and condensing
The pipeline of device (113), for conveying steam.
Heat pump (121) be it is a kind of can obtain low grade heat energy from the empty gas and water or soil of nature, done by electric power
Work(, providing can be by the device of the high-grade thermal energy used in people.Heat pump water inlet pipe (122) refers to connect with heat pump (121), to heat
Pump the pipeline intake in (121).Heat pump outlet pipe (123) refers to connect with heat pump (121), the pipe of the outside draining of heat pump (121)
Road.
Cooling tower (131) is by the use of water as circulating coolant, and heat is absorbed from a certain system and is emitted into air, with
Reduce the device of water temperature.Circulating water pipeline (132) refers to connect condenser (113) and cooling tower (131), conveying cooling circulating water
Pipeline.
Heating equipment (141) refers in heating plant (14), the equipment that heat user carries out heating, such as can be heating
Deng.Heating feed pipe (142) refers into the pipeline before the heating equipment (141) of heat user, for conveying heat transfer medium, example
Such as water.Heating return pipe (143) refers to the heating equipment (141) by heat user, the pipe of the conveying heat transfer medium after heat release
Road, heat transfer medium are delivered to by heating return pipe (143) in heat pump assembly (12), are recycled into next round, again and are absorbed
After heat, heat through heating feed pipe (142) to heating equipment (141).
Illustratively, it (can not also be marked in figure including condensate pump in the Steam Turbine in the embodiment of the present invention (11)
Note), for conveying the condensation water in condenser in thermoelectricity therrmodynamic system.Cooling tower (131) can be that closed cooling tower (is also named
Evaporating air cooler) pipe heat exchanger is placed in tower, drop is ensured by the heat exchange of the air of circulation, shower water and recirculated water
Temp effect.It can also include some other equipment, such as water circulating pump (being not marked in figure) in circulating water device (13), be used for
Trandfer fluid or the machinery for being pressurized it, effect is to supply cooling water to condenser (113), to maintain condenser (113)
Vacuum improves the working efficiency of Steam Turbine (11).The recirculated water that temperature in cooling tower (131) is T01 passes through circulating water pipe
Road (132) is into condenser (113), and temperature raising is T02 after the heat that (113) absorption steam condensation distributes in condenser,
And under the action of the water circulating pump by circulating water pipeline (132) into after cooling tower (131) in cooling tower (131) heat dissipation drop
Temperature is T01, completes one cycle process.
Heating equipment (141) in heating plant (14) is illustrated by taking heating as an example, and heat transfer medium is carried out by taking water as an example
Explanation.Heating feed pipe (142) is connected with heat pump (121), after heating water supply is exchanged heat in heat pump (121), water temperature raising,
It is delivered at heating equipment (141) by heating feed pipe (142), release heat is for user heating, heating after user heating
In water temperature reduce, then be delivered at heat pump (121) through heating return pipe (143), with heat pump (121) exchange heat again,
Water temperature increases, and is changed into heating water supply, is user's heat supply.
It should be noted that in practical heating system, the type and quantity of cooling tower, water circulating pump and circulating water pipe
The specific choice and set-up mode in road can be adaptively adjusted according to actual conditions, and what is provided in figure is only a kind of example,
Specific restriction is not done herein.
Fig. 4 is the structure diagram of heat pump assembly in the heating system in the embodiment of the present invention one.Referring to Fig. 1 and Fig. 4, into
One step, heat pump assembly (12) includes：An at least heat pump (121), each heat pump (121) is in parallel and/or is arranged in series；Its
In,
Each heat pump (121) includes：Evaporator (1211), compressor (1212), condenser (1213), expansion valve
(1214)；Wherein, one end of evaporator (1211) successively with compressor (1212), condenser (1213) and expansion valve (1214) phase
Even, the other end of evaporator (1211) is connected with expansion valve (1214).
In embodiments of the present invention, evaporator (1211) with the recirculated water in heat pump water inlet pipe (122) for carrying out hot friendship
It changes, the liquid in heating evaporation device (1211) makes it be converted into steam.Compressor (1212) is a kind of to be promoted to low-pressure gas
A kind of driven fluid machinery of high pressure gas can suck the gas medium of low-temp low-pressure, operate to drive by motor and live
After plug compresses it, to the gas medium of exhaust pipe discharge high temperature and pressure.Condenser (1213) belongs to one kind of heat exchanger,
Gas or steam can be transformed into liquid, heat is passed in a manner of quickly in neighbouring air, condenser (1213) work
Process is an exothermic process.Expansion valve (1214) mainly has throttling action and control to be situated between mounted on evaporator (1211) entrance
The effect of mass flow amount.
Illustratively, referring to Fig. 1, heat pump assembly (12) can be composed in parallel by more heat pumps (121), need meet compared with
During multi-user institute calorific requirement, the connection mode of the heat pump (121) in heat pump assembly (12) can be adjusted.Referring to Fig. 4,
In the embodiment of the present invention, evaporator (1211) is connected with heat pump water inlet pipe (122) and heat pump outlet pipe (123), condenser
(1213) it is connected respectively with heating feed pipe (142) and heating return pipe (143).It is T11's in evaporator (1211) interior temperature
Medium evaporates, and absorbs the heat in the recirculated water that temperature is T02, heats up to enter compressor (1212) after T12, pass through compressor
(1212) compression becomes the high-temperature high-pressure medium that temperature is T13.Heat pump is passed through for the recirculated water of T03 by the cooling of absorption heat
Outlet pipe (123) returns to (not shown) in circulating water device.
Illustratively, in condenser (1213), the return water that the high-temperature medium that temperature is T13 is T21 to temperature discharges heat
Amount is by the raising of its temperature after T22, heating equipment (141) to be delivered to by heating water supply line (142), through heating equipment
(141) temperature is reduced to T21 after consuming.Medium temperature in condenser (1213) after release heat is reduced to T14, by expansion valve
(1214) continue to continue cycling through into evaporator (1211) after reducing temperature to T11 after depressurizing.
Further, heat pump assembly (12) series connection two-stage or three-level heat pump；Wherein, include at least a heat pump for every grade
(121)。
Further, heat pump water inlet pipe (122) is connected with circulating water pipeline (132)；
Heat pump outlet pipe (123) is set on the circulating water pipeline (132) before cooling tower (131), is introduced directly into cooling tower
(131) it or is set on the circulating water pipeline (132) after cooling tower (131).
Illustratively, Fig. 2 is the second structure diagram of the heating system in the embodiment of the present invention one.Fig. 3 is the present invention
The third structure diagram of heating system in embodiment one.Referring to Fig. 1, heat pump outlet pipe (123) can be set to cooling tower
(131) on the circulating water pipeline (132) before；Referring to Fig. 2, heat pump outlet pipe (123) can be introduced directly into cooling tower (131)
In；Referring to Fig. 3, heat pump outlet pipe (123) can be set on the circulating water pipeline (132) after cooling tower (131).
It should be noted that for the connection mode of heat pump assembly (12) and circulating water device (13), people in the art
Member can be adjusted according to actual conditions, and the present invention does not limit herein.
Further, two regulating valves are set respectively on circulating water pipeline (132) and heat pump water inlet pipe (122)：First adjusts
Save valve (1321) and the second regulating valve (1221)；Wherein,
First regulating valve (1321) and the second regulating valve (1221) enter the recirculated water in evaporator (1211) for adjusting
Amount, wherein, the quantity of circulating water in evaporator (1211) is used for the heating load of adjusting heat pump device (12).
Illustratively, in embodiments of the present invention, the first regulating valve (1321) is set on circulating water pipeline (132), the
Two regulating valves (1221) are set on heat pump water inlet pipe (122), therefore can be adjusted by the first regulating valve (1321) and second
Quantity of circulating water in the common adjusting heat pump water inlet pipe (122) of valve (1221), and then adjust the evaporator entered in heat pump (121)
(1211) quantity of circulating water in.The working condition of compressor (1212) and the recirculated water in evaporator (1211) in heat pump (121)
Measure related, the heating load of entire heat pump (121) is related with the quantity of circulating water in evaporator (1211), therefore passes through the first regulating valve
(1321) and the second regulating valve (1221) can adjusting heat pump (121) jointly heating load, and then adjust entire heat pump assembly
(12) heating load.
Referring to Fig. 1, Fig. 2 and Fig. 3, further, which further includes：Boiler plant (15), boiler plant (15) include：
Boiler body (151), the second jet chimney (152) and condensing water conduit (153)；Wherein, boiler body (151) and steam turbine
(111) it is connected by the second jet chimney (152)；Condenser (113) passes through condensing water conduit (153) with boiler body (151)
It is connected；Wherein,
The steam that boiler plant (15) generates enters steam turbine (111) acting, generator (112) is made to generate electricity, after acting
Steam enters boiler plant (15) progress next round cycle after entering condenser (113) condensation heat.
In embodiments of the present invention, to fuel of boiler body (151) input with chemical energy or electric energy, boiler body
(151) steam, high-temperature water or organic heat carrier of the output with certain thermal energy.Boiler body (151) in the embodiment of the present invention
Refer to the equipment for providing high-temperature steam to steam turbine (111).Second jet chimney (152) refers to connection from boiler body
(151) and steam turbine (111), for conveying the pipeline of high-temperature steam.Condensing water conduit (153) refers to after high-temperature steam acting
Water is condensated into condenser (113), boiler body (151) is flowed back to again through pipeline and is recycled into next round, condensation water is flowed
The pipeline of warp is condensing water conduit (153).
Illustratively, the high-temperature steam used in steam turbine (111) derives from boiler body (151), boiler body (151) production
Raw steam, the heat needed can be discharged by fire coal, combustion gas, fuel oil or other energy to be provided；Steam is done in steam turbine (111)
Work(generates electricity, and steam exhaust enters condenser (113) condensation heat by the first jet chimney (114) pipeline, and the steam after heat exchange becomes
It is pressurized after condensation water by condensate pump (being mark in figure), under being entered by condensing water conduit (153) into boiler body (151)
One wheel cycle.It is also possible to be disposed with low-pressure heater, high-pressure heater, deoxygenation between condenser (113) and boiler body (151)
The equipment (not shown) such as device.
It should be noted that for traditional cogeneration units, due to its system structure design itself,
Generated energy and heating load are interactional that is, so-called " electricity determining by heat ".In embodiments of the present invention, not to original
Steam Turbine (11) is transformed, but except Steam Turbine (11), increase heat pump assembly (12), more than in recirculated water
Heat removes the heating feed pipe (142) of heating user, realizes the separation of heat supply and power generation.Increased heat pump assembly (12) is gone back simultaneously
A part of electricity of Steam Turbine (11) generation can be consumed, reduces the electricity volume of entire fired power generating unit, is realizing thermal electrolysis
Meet fired power generating unit depth peak regulation requirement while coupling.
It should be noted that the Steam Turbine (11) in the embodiment of the present invention can be pure condensed steam wheel unit, steam extraction and condensing
Formula Steam Turbine or back pressure turbine group.If Steam Turbine (11) be pure condensate Steam Turbine, for fired power generating unit transformation just
It is to change the unit that can only be generated electricity originally for cogeneration units, extends the heat capacity of original unit；If steam turbine
Group (11) is extraction-condensing steam turbine group or back pressure turbine group, and the two just belongs to cogeneration units originally, in steam turbine
Steam some can be used for heat supply, after transformation on the basis of Steam Turbine (11) increase heat pump assembly (12), can
Not carry out capacity-increasing transformation to original steam turbine, heat capacity is extended by way of increasing steam extraction amount, but utilizes cycle
Waste heat in water installations (13) improves capacity usage ratio and goes to extend the heat capacity of original cogeneration units, increases heating load,
To meet the needs of more heat users.Steam Turbine therein can be a certain Steam Turbine known to a person skilled in the art
Or arbitrary combination turbine group, the embodiment of the present invention are not defined the type of Steam Turbine.
An embodiment of the present invention provides a kind of heating system, which includes：Steam Turbine, heat pump assembly, recirculated water dress
It puts and heating plant, Steam Turbine is connected with circulating water device, circulating water device absorbs heat from Steam Turbine；Heat pump assembly
It is connected with circulating water device, the heat in heat pump assembly absorption cycle water installations；Heating plant is connected with heat pump assembly, heat pump dress
It puts heat transfer to the heating plant that will be absorbed from circulating water device and carries out heat supply.By in Steam Turbine and circulating water device
Centre increases heat pump assembly, will not be to the normal fortune of original steam turbine using the waste heat heating equipment in circulating water device
Row has any impact, and improves capacity usage ratio, realizes thermoelectricity decoupling, and also extend original fired power generating unit supplies thermal energy
Power.Therefore, Overall Reconstruction steam turbine is needed when the embodiment of the present invention solves original fired power generating unit extension heat capacity transformation, is changed
The problem of range is big, of high cost is made, the problem of original cogeneration units thermoelectrical efficiency influences each other is also solved, has reached confession
Hot systems are simple in structure, reasonable design, dependable performance, improve capacity usage ratio, realize thermoelectricity decoupling, meet fired power generating unit depth
Spend the advantageous effect of peak regulation demand.
Embodiment two
Fig. 5 is the first connected mode schematic diagram of heat pump assembly in the heating system in the embodiment of the present invention two.When heat is used
When family needs higher heating temperature, the connection mode of heat pump assembly (12) can be adjusted, as shown in figure 5, can also
More heat pumps are attached in a manner that first parallel connection is connected again.The heating that temperature is T21 from heating return pipe (143) is returned
Water respectively enters first group of heat pump by a plurality of lateral, and temperature raising is T21 ' under the action of first group of heat pump, each
Temperature is that the heating return water of T21 ' converges and then into second group of heat pump in lateral, under the action of second group of heat pump
The heat raising for continuing absorption cycle water carries out heat supply after T22, to converge to heating feed pipe (142).
Fig. 6 is the second connected mode schematic diagram of heat pump assembly in the heating system in the embodiment of the present invention two.When heat is used
When family needs higher heating temperature, the connection mode of heat pump assembly (12) can be adjusted, as shown in fig. 6, can incite somebody to action
In parallel again after more heat pump string formation connection, temperature is that the heating return water of T21 passes through a plurality of lateral from heating return pipe (143)
Respectively enter first group of heat pump, under the action of first group of heat pump temperature raising for T21 ', after go successively to second group of heat pump,
Temperature continues raising and becomes T22 under the action of second group of heat pump, and then conveying heating water supply by heating feed pipe (142) carries out
Heat supply.
Often by level-one heat pump, the temperature of heating return water can increase, and the temperature difference between recirculated water can become smaller, so series connection
The series of heat pump group is more, and the efficiency of back pump stage can be lower, and the influence in parallel to heat pump efficiency is smaller, therefore, for heat
The serial number of pump group will be controlled reasonably, and in general, when connecting 2-3 group heat pumps, heating efficiency is preferable
It should be noted that the Steam Turbine (11) in the embodiment of the present invention can be pure condensed steam wheel unit, steam extraction and condensing
Formula Steam Turbine or back pressure turbine group.If Steam Turbine (11) be pure condensate Steam Turbine, for fired power generating unit transformation just
It is to change the unit that can only be generated electricity originally for cogeneration units, extends the heat capacity of original unit；If steam turbine
Group (11) is extraction-condensing steam turbine group or back pressure turbine group, and the two just belongs to cogeneration units originally, in steam turbine
Steam some can be used for heat supply, after transformation on the basis of Steam Turbine (11) increase heat pump assembly (12), can
Not carry out capacity-increasing transformation to original steam turbine, heat capacity is extended by way of increasing steam extraction amount, but utilizes cycle
Waste heat in water installations (13) improves capacity usage ratio and goes to extend the heat capacity of original cogeneration units, increases heating load,
To meet the needs of more heat users.Steam Turbine therein can be a certain Steam Turbine known to a person skilled in the art
Or arbitrary combination turbine group, the embodiment of the present invention are not defined the type of Steam Turbine.
It should be noted that in the embodiment of the present invention, one of which situation is only gived for specific in heat pump assembly
Heat pump connection mode and quantity do not limit explicitly, can be adjusted according to actual conditions.
An embodiment of the present invention provides a kind of heating system, by increasing heat pump among Steam Turbine and circulating water device
Device is adjusted the connection mode and quantity of heat pump in heat pump assembly, and the normal operation of original steam turbine will not be caused
Any influence；And realize the utilization of waste heat and thermoelectricity decoupling.Therefore, the embodiment of the present invention, which solves, is extending original thermal motor
Group heat capacity when, need Overall Reconstruction steam turbine, the reconstruction scope is big, it is of high cost the problem of, also further solve heat supply system
The problem of heating efficiency of uniting is not high, improved heating system structure is simple, reasonable design, dependable performance, and capacity usage ratio is high,
It also realizes thermoelectricity decoupling, on the basis of above-described embodiment, further improves the heating efficiency of heating system.
Embodiment three
Fig. 7 is the structure diagram of the heating system in the embodiment of the present invention three.As shown in fig. 7, in above-described embodiment
On the basis of, which further includes：Extracted steam from turbine device (16), wherein bleeder steam device (16) include：Extracted steam from turbine
Pipeline (161), steam heater drain water piping (162) and steam heater (163)；
Extracted steam from turbine device (16) is connected with Steam Turbine (11)；Wherein, extracted steam from turbine device (16) extracts steamer
Steam in machine (111)；
Steam heater (163) is set on heating feed pipe (142)；Wherein, steam heater (163) is added using steam
Heating supplies water, and heat supply is carried out to heating equipment (141).
In embodiments of the present invention, extracted steam from turbine device (16) refers to extract the dress of some vapor from steam turbine (111)
It puts.Extracted steam from turbine pipeline (161) refers to the pipeline for some vapor that conveying is extracted from steam turbine (111).Steam heater
Drain water piping (162) is the pipeline for conveying condensed water after steam heater exchanges heat.Steam heater (163) refers to steam to be utilized
The heat of releasing is come the substance that heats needed for heating.
On the basis of above-described embodiment, illustratively, the premise that can permit in steam turbine (111) blade and thrust
Under, a small amount of steam is extracted from steam turbine (111) is interior, steam is led to steam heater by extracted steam from turbine pipeline (161)
(163), continue heating in the interior high-temperature steam of steam heater (163) to supply water, improve supply water temperature, increase heating
Amount, while the quantity of heat pump (121) according to circumstances can also be suitably reduced, capacity usage ratio is improved, reduces equipment investment.High temperature
Steam is connect by steam heater drain water piping (162) through the condensed liquid that exchanges heat and leads to condenser (113).
It should be noted that steam heater (163) also can be replaced electric heater, supply water as long as can realize to heating
Heating, the type of heater is not limited.
It should be noted that Steam Turbine (11) in the embodiment of the present invention can be pure condensed steam wheel unit, it is also replaceable
For extraction-condensing steam turbine group or back pressure turbine group.If Steam Turbine (11) is pure condensate Steam Turbine, for thermal motor
The transformation of group is exactly to change the unit that can only be generated electricity originally for cogeneration units, and extend original unit supplies thermal energy
Power；If Steam Turbine (11) is extraction-condensing steam turbine group or back pressure turbine group, the two just belongs to cogeneration of heat and power machine originally
Group, some can be used for heat supply for steam in steam turbine, after transformation, on the basis of original Steam Turbine (11) heat supply
Increase heat pump system device (12), capacity-increasing transformation can not carried out to original steam turbine, expanded by way of increasing steam extraction amount
Heat capacity is opened up, but utilizes the waste heat in circulating water device (13), capacity usage ratio is improved and goes to extend original cogeneration of heat and power machine
The heat capacity of group increases heating load, to meet the needs of more heat users.Steam Turbine therein can be art technology
Personnel know a certain Steam Turbine or arbitrary combination turbine group, and the embodiment of the present invention is not to the kind of Steam Turbine
Class is defined.
An embodiment of the present invention provides a kind of heating system, by increasing heat pump among Steam Turbine and circulating water device
Device, heat that can be in absorption cycle water realize the utilization of waste heat and thermoelectricity decoupling；Between Steam Turbine and heating plant
Increase extracted steam from turbine device, under the premise of turbine blade and thrust are permitted, a small amount of steam is extracted out of steam turbine and is matched
It closes heat pump assembly heating to supply water, reduces cyclic process.Therefore, the embodiment of the present invention, which solves, is extending original thermal motor
Group heat capacity when need Overall Reconstruction steam turbine, the reconstruction scope is big, it is of high cost the problem of, also further solve heating system
The problem of heating efficiency is not high, improved heating system structure is simple, reasonable design, dependable performance, and capacity usage ratio is high, also
It realizes thermoelectricity decoupling, on the basis of above-described embodiment, further improves the heating efficiency of heating system.
Note that it above are only presently preferred embodiments of the present invention and institute's application technology principle.It will be appreciated by those skilled in the art that
The present invention is not limited to specific embodiment described here, can carry out for a person skilled in the art various apparent variations,
It readjusts and substitutes without departing from protection scope of the present invention.Therefore, although being carried out by above example to the present invention
It is described in further detail, but the present invention is not limited only to above example, without departing from the inventive concept, also
It can include other more equivalent embodiments, and the scope of the present invention is determined by scope of the appended claims.
Claims (9)
1. a kind of heating system, which is characterized in that the system comprises：Steam Turbine (11), heat pump assembly (12), recirculated water dress
Put (13) and heating plant (14)；
The Steam Turbine (11) is connected with the circulating water device (13), and the circulating water device (13) is from the Steam Turbine
(11) heat is absorbed in；
The heat pump assembly (12) is connected with the circulating water device (13), and the heat pump assembly (12) absorbs the recirculated water dress
Put the heat in (13)；
The heating plant (14) is connected with the heat pump assembly (12), and the heat pump assembly (12) will be from the circulating water device
(13) heat transfer absorbed in the heating plant (14) carries out heat supply.
2. system according to claim 1, which is characterized in that the Steam Turbine (11) includes：Steam turbine (111), hair
Motor (112), condenser (113) and the first jet chimney (114)；Wherein, first jet chimney (114) and the steamer
Machine (111), the generator (112) are connected with the condenser (113)；
The heat pump assembly (12) includes：At least one heat pump (121), heat pump water inlet pipe (122) and heat pump outlet pipe (123)；
Wherein, the heat pump water inlet pipe (122) and heat pump outlet pipe (123) with each heat pump (121) and the recirculated water with filling respectively
(13) are put to be connected；
The circulating water device (13) includes：Cooling tower (131) and circulating water pipeline (132)；Wherein, the circulating water pipeline
(132) it is connected with the condenser (113) and the cooling tower (131)；
The heating plant (14) includes：Heating equipment (141), heating feed pipe (142) and heating return pipe (143)；Wherein,
The heating feed pipe (142) and heating return pipe (143) respectively with the heat pump assembly (12) and the heating equipment (141)
It is connected.
3. system according to claim 2, which is characterized in that the heat pump assembly (12) includes：An at least heat pump
(121), each heat pump (121) is in parallel and/or is arranged in series；Wherein,
Each heat pump (121) includes：Evaporator (1211), compressor (1212), condenser (1213), expansion valve (1214)；Its
In, one end of the evaporator (1211) successively with the compressor (1212), the condenser (1213) and the expansion valve
(1214) it is connected, the other end of the evaporator (1211) is connected with the expansion valve (1214).
4. system according to claim 3, which is characterized in that heat pump assembly (12) the series connection two-stage or three-level heat pump；
Wherein, include at least a heat pump (121) for every grade.
5. system according to claim 3, which is characterized in that the heat pump water inlet pipe (122) and the circulating water pipeline
(132) it is connected；
The heat pump outlet pipe (123) is set on the circulating water pipeline (132) before the cooling tower (131), directly draws
Enter the cooling tower (131) or be set on the circulating water pipeline (132) after the cooling tower (131).
6. system according to claim 5, which is characterized in that the circulating water pipeline (132) and the heat pump water inlet pipe
(122) two regulating valves are set respectively on：First regulating valve (1321) and the second regulating valve (1221)；Wherein,
First regulating valve (1321) and the second regulating valve (1221) enter following in the evaporator (1211) for adjusting
Ring water, wherein, the quantity of circulating water in the evaporator (1211) is used to adjust the heating load of the heat pump assembly (12).
7. system according to claim 2, which is characterized in that the heating in the heating feed pipe (142), which is supplied water, to be absorbed
Heat in the heat pump assembly (12)；
The heating return pipe (143) will be delivered to the heating plant by the heated heating return water of the heat pump assembly (12)
(14) in, heat supply is carried out to heating equipment (141).
8. system according to claim 2, which is characterized in that the system also includes：Boiler plant (15), the boiler
Device (15) includes：Boiler body (151), the second jet chimney (152) and condensing water conduit (153)；Wherein, the boiler sheet
Body (151) is connected with the steam turbine (111) by second jet chimney (152)；The condenser (113) and the pot
Furnace body (151) is connected by the condensing water conduit (153)；Wherein,
The steam that the boiler plant (15) generates does work into the steam turbine (111), and the generator (112) is made to generate electricity,
After the steam after acting enters condenser (113) condensation heat, next round cycle is carried out into the boiler plant (15).
9. system according to claim 8, which is characterized in that the system also includes：Extracted steam from turbine device (16),
Described in bleeder steam device include：Extracted steam from turbine pipeline (161), steam heater drain water piping (162) and steam add
Hot device (163)；
The extracted steam from turbine device (16) is connected with the Steam Turbine (11)；Wherein, the extracted steam from turbine device (16)
Extract the steam in the steam turbine (111)；
The steam heater (163) is set on the heating feed pipe (142)；Wherein, steam heater (163) profit
It is supplied water with the steam heating, heat supply is carried out to the heating equipment (141).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810084547.2A CN108167914A (en) | 2018-01-29 | 2018-01-29 | A kind of heating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810084547.2A CN108167914A (en) | 2018-01-29 | 2018-01-29 | A kind of heating system |
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ID=62515874
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113357692A (en) * | 2021-06-04 | 2021-09-07 | 中国科学院广州能源研究所 | Circulating water waste heat recovery system of thermal power plant |
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| CN101943435A (en) * | 2010-09-25 | 2011-01-12 | 北京联合优发能源技术有限公司 | Thermoelectricity co-generation energy-saving device for supplying heat by using waste heat and energy-saving method thereof |
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Application publication date: 20180615 |