CN107060915A - Heat pump cycle water backheat Rankine cycle system - Google Patents
Heat pump cycle water backheat Rankine cycle system Download PDFInfo
- Publication number
- CN107060915A CN107060915A CN201710421880.3A CN201710421880A CN107060915A CN 107060915 A CN107060915 A CN 107060915A CN 201710421880 A CN201710421880 A CN 201710421880A CN 107060915 A CN107060915 A CN 107060915A
- Authority
- CN
- China
- Prior art keywords
- heat pump
- steam turbine
- water
- pump
- unicom
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K7/00—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating
- F01K7/34—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines being of extraction or non-condensing type; Use of steam for feed-water heating
- F01K7/38—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines being of extraction or non-condensing type; Use of steam for feed-water heating the engines being of turbine type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K11/00—Plants characterised by the engines being structurally combined with boilers or condensers
- F01K11/02—Plants characterised by the engines being structurally combined with boilers or condensers the engines being turbines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K7/00—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating
- F01K7/34—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines being of extraction or non-condensing type; Use of steam for feed-water heating
- F01K7/40—Use of two or more feed-water heaters in series
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
The invention discloses heat pump cycle water backheat Rankine cycle system, including steam boiler, Turbo-generator Set, steam turbine extraction opening, steam turbine condenser, steam turbine condensate pump, heat pump compressor, heat pump steam turbine, circulating cooling water source, water circulating pump, evaporator with heat pump, ring water shunting valve, heat pump condenser, throttling of heat pump valve, oxygen-eliminating device, feed pump, injection type mixes heater.It is characterized in that：Characteristic is heated using the highly effective refrigeration of heat pump, the heat of turbine circulation water is used to lift steam turbine condensation water temperature, circulating water cooling can be reduced again in evaporator with heat pump the condensing temperature of steam turbine, the thermal efficiency of Turbo-generator Set can effectively be lifted by being improved more than.
Description
Technical field
The present invention relates to a kind of heat pump cycle water backheat Rankine cycle system, belong to field of dynamic engineering.
Background technology
Currently, worldwide heat energy power-generating factory be mostly it is former used the rankine power cycle of more than 100 years, it be
Many places extraction opening is added on the basis of the power cycle of Kano to steam turbine, the steam of the different temperatures of extraction to heat vapour
The low-temperature condensate of turbine, lifts the feedwater for entering boiler near from low-pressure heater, oxygen-eliminating device to multistage pressure heater
Saturation temperature, is effectively improved the thermal efficiency of power cycle.But rankine power cycle still remains substantial amounts of general vapour need to be with low
Warm recirculated water Come cooling condenses, as a result recirculated water turn into substantial amounts of heat be sent to cooling tower cooler after high temperature circulation water again and
Again low-temperature circulating water is turned into, the heat that recirculated water Tapes is walked has exceeded more than the 80% of power plant heat loss.Rankine power cycle
Though reducing the Some thermal heat loss of steam turbine condensate, but still there is substantial amounts of condensing loss to be taken away by recirculated cooling water.
The content of the invention
For it is existing the problem of, it is an object of the invention to provide a kind of heat pump cycle water backheat Rankine cycle system, profit
With heat pump techniques using the part recirculated water of steam turbine as the thermal source of heat pump condenser, the condensate to heat steam turbine, and
Circulating water temperature reduction is made steam turbine work done increase by the evaporator of heat pump again, and hot, the cold effect that such heat pump is produced is obtained for
Utilize, both has combined Come can improve the thermal efficiency 2% of Steam Turbine in theory.
To achieve these goals, the technical scheme is that：A kind of heat pump cycle water backheat Rankine cycle system, bag
Include steam boiler, Turbo-generator Set, steam turbine extraction opening, steam turbine condenser, steam turbine condensate pump, heat pump compressor, heat pump vapour
Turbine, circulating cooling water source, water circulating pump, evaporator with heat pump, ring water shunting valve, heat pump condenser, throttling of heat pump valve, deoxygenation
Device, feed pump, 2--40 branch injection type mixes heater.The present invention can heat characteristic using the highly effective refrigeration of heat pump, solidifying in heat pump
The heat of turbine circulation water is condensed into water temperature for lifting steam turbine in knot device, circulating water cooling and energy in evaporator with heat pump
The condensing temperature of steam turbine is reduced, the thermal efficiency of steam turbine is improved, can effectively lift the thermal efficiency of Turbo-generator Set.
It is characterized in that：Steam boiler is consolidated with steam turbine high pressure vapor inlet UNICOM；The end of steam turbine condenser is that steam turbine coagulates
Bear water pond and the entrance UNICOM of steam turbine condensate pump consolidates, outlet and the heat pump condenser water side entrance UNICOM of steam turbine condensate pump
Consolidation.The system mixes heater using 2--40 branch injection type altogether, and final stage injection type mixes the feed-water inlet and heat pump of heater
Condenser water side outlet UNICOM consolidates, and outlet and the heat pump condenser working medium side entrance UNICOM of heat pump compressor consolidate.Heat pump coagulates
The entrance UNICOM for tying device working medium side outlet and throttling of heat pump valve consolidates, outlet and the evaporator with heat pump working medium side of throttling of heat pump valve
Entrance UNICOM consolidates, and outlet and the heat pump compressor entrance UNICOM of evaporator with heat pump working medium side consolidate.Heat pump steam turbine and heat pump
The axle concrete mutually of compressor.The entrance of water circulating pump is consolidated with circulating cooling water source UNICOM, the outlet of water circulating pump respectively with heat
The entrance UNICOM consolidation of pump evaporator water side entrance and ring water shunting valve.The water of evaporator with heat pump water side outlet and steam turbine condenser
The outlet UNICOM consolidation of side entrance and ring water shunting valve.Final stage injection type mixes the outlet water at tail end mouthful of heater and entering for oxygen-eliminating device
Mouth of a river UNICOM consolidates.The feed-water inlet UNICOM that the delivery port of oxygen-eliminating device mixes heater with another-platform injection type consolidates；Through 1--39
Level injection type is mixed after heater, and the entrance UNICOM of delivery port and steam boiler that first order injection type mixes heater consolidates.
The beneficial effects of the invention are as follows：It is of the invention compared with traditional Rankine cycle is with surface-type steam heater, it profit
Characteristic is heated with the highly effective refrigeration of heat pump, by the heat of turbine circulation water for lifting steam turbine condensate in heat pump condenser
Temperature, reduces the heater amount of drawing gas；And circulating water cooling in evaporator with heat pump, it is possible to decrease the condensing temperature of steam turbine increases
Power.
Brief description of the drawings：
Fig. 1 is heat pump cycle water backheat Rankine cycle system figure of the invention；
Embodiment
The present invention will be further described with specific embodiment below in conjunction with the accompanying drawings：300MW turbine generators as shown in Figure 1
Unit uses the system that heat pump cycle water backheat Rankine is followed instead.Including steam boiler 1, steam turbine high pressure vapor inlet 2, steam turbine extraction opening 3,
Turbo-generator Set 4, steam turbine condenser 5, steam turbine condenses pond 6, steam turbine condensate pump 7, heat pump compressor 8, heat pump steam turbine
9, circulating cooling water source 10, water circulating pump 11, evaporator with heat pump 12, ring water shunting valve 13, heat pump condenser 14, throttling of heat pump valve
15, oxygen-eliminating device 16, feed pump 17, injection type mixes heater 18.
This programme is directed to the heat pump cycle water backheat Rankine cycle system of 300MW Turbo-generator Sets, and its structure is as follows:
1080T/h steam boiler 1 confesses 566 DEG C of steam temperature, vapour amount 1025t/h steam to steam turbine high pressure vapor inlet 2；Steam turbine condenser
5 per hour condensing amount be 750 tons and send into steam turbine condense pond 6, steam turbine condensate pump 7 from steam turbine condense pond 6 extract 30 DEG C
Condensate be supplied to the water side entrance of heat pump condenser 14.It is heated to delivering to final stage injection type mixing after 78 DEG C by heat pump condenser 14
The feed-water inlet of heater 18, final stage injection type mixes heater 18 and introduces steam further by feedwater from steam turbine extraction opening 3
It is heated to after 104 DEG C lead to oxygen-eliminating device 16.The bottom delivery port of oxygen-eliminating device 16 is communicated with feed pump 17, is confessed from oxygen-eliminating device 16
Deaerated water about 750T/h is pumped to separately-level injection type by feed pump 17 and mixes heater 18, is taken out again from steam turbine extraction opening 3
The high-temperature steam heating gone out, 196 DEG C are reached through 7 grades of heating, are delivered to steam boiler 1 and are completed Rankine Steam Power Circulation.Heat pump pressure
Contracting machine 8 will be sent to heat pump condenser 14 after heat pump fluid pressure build up, and the heat transmission of working medium is given by steam turbine condensate pump 7
Come condensate is sent to be allowed to be warming up to 78 DEG C.Gaseous working medium is released in heat pump condenser 14 to condense into liquid after heat and enters heat pump
The reducing pressure by regulating flow of choke valve 15 cools, and enters back into evaporator with heat pump 12, wherein evaporation endothermic.This can make to feed to from water circulating pump 11
Steam turbine condenser 5 is flowed through after the circulating water cooling of evaporator with heat pump 12, about 2 DEG C of the condensing temperature of steam turbine can be lowered.
Preferred embodiment of the invention described in detail above.It should be appreciated that applying in the art more than 100
If heat pump cycle water backheat Rankine cycle system is used in the thermal power generation Rankine cycle in year instead, turbine thermodynamic efficiency can be improved near
2%.Therefore, all technical staff in the art under this invention's idea on the basis of existing technology by logic analysis,
Reasoning or the available technical scheme of limited experiment, all should be in the protection domain being defined in the patent claims.
Claims (1)
1. a kind of heat pump cycle water backheat Rankine cycle system, including steam boiler (1), steam turbine high pressure vapor inlet (2), steam turbine is taken out
Steam ports (3), Turbo-generator Set (4), steam turbine condenser (5), steam turbine condenses pond (6), steam turbine condensate pump (7), heat pump pressure
Contracting machine (8), heat pump steam turbine (9), circulating cooling water source (10), water circulating pump (11), evaporator with heat pump (12), ring water shunting valve
(13), heat pump condenser (14), throttling of heat pump valve (15), oxygen-eliminating device (16), feed pump (17), injection type mixes heater
(18), it is characterised in that：Steam boiler (1) is consolidated with steam turbine high pressure vapor inlet (2) UNICOM, and the end of steam turbine condenser (5) is
Steam turbine condenses pond (6), and entrance and the steam turbine of steam turbine condensate pump (7) condense pond (6) UNICOM consolidation, steam turbine condensate pump
(7) outlet is consolidated with heat pump condenser (14) water side entrance UNICOM, and the system mixes heater using 2 to 40 injection types
(18), final stage injection type mixes the feed-water inlet of heater (18) and heat pump condenser (14) water side outlet UNICOM consolidates, heat pump
The outlet of compressor (8) is consolidated with heat pump condenser (14) working medium side entrance UNICOM, heat pump condenser (14) working medium side outlet with
The entrance UNICOM consolidation of throttling of heat pump valve (15), the outlet of throttling of heat pump valve (15) and the working medium side entrance of evaporator with heat pump (2)
UNICOM is consolidated, and the working medium side outlet of evaporator with heat pump (2) is consolidated with the entrance UNICOM of heat pump compressor (8), heat pump steam turbine (9)
With the axle concrete mutually of heat pump compressor (8)；The entrance of water circulating pump (11) is consolidated with circulating cooling water source (10) UNICOM, recirculated water
The outlet of pump (11) is consolidated with the entrance UNICOM of evaporator with heat pump (12) water side entrance and ring water shunting valve (13) respectively, and heat pump steams
Device (12) water side outlet is sent out to consolidate with the water side entrance of steam turbine condenser (5) and the outlet UNICOM of ring water shunting valve (13)；Heat pump
Recirculated water backheat Rankine cycle system is provided with 2 to 40 injection types and mixes heater (18), and final stage injection type mixes heater
(18) outlet and the water inlet UNICOM of oxygen-eliminating device (16) consolidate, and the delivery port of oxygen-eliminating device (16) and feed pump (17) UNICOM are solid
Knot, the feed-water inlet UNICOM that the outlet of feed pump (17) mixes heater (18) with another-level injection type consolidates, so through 6 connection
After knot, the entrance UNICOM of delivery port and steam boiler (1) that first order injection type mixes heater (18) consolidates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710421880.3A CN107060915A (en) | 2017-06-07 | 2017-06-07 | Heat pump cycle water backheat Rankine cycle system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710421880.3A CN107060915A (en) | 2017-06-07 | 2017-06-07 | Heat pump cycle water backheat Rankine cycle system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107060915A true CN107060915A (en) | 2017-08-18 |
Family
ID=59616781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710421880.3A Pending CN107060915A (en) | 2017-06-07 | 2017-06-07 | Heat pump cycle water backheat Rankine cycle system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107060915A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2708865A1 (en) * | 2017-10-11 | 2019-04-11 | Olavarria Rodriguez Arango Rafael | Electric energy storage system with heat pump and steam accumulators (Machine-translation by Google Translate, not legally binding) |
| CN113898429A (en) * | 2021-11-09 | 2022-01-07 | 华北电力大学（保定） | Supercritical reheat regenerative Rankine cycle system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1208148A (en) * | 1997-07-30 | 1999-02-17 | 东芝株式会社 | Feed water heating system for power generating plant |
| DE19845739A1 (en) * | 1998-10-05 | 2000-04-06 | Abb Patent Gmbh | Thermal power station with liquid or gas solution, has heat exchangers in pressure buffer, collection containers with media for alternate solution heating, heating solution as required, and cooling solution |
| JP2006343084A (en) * | 2005-06-10 | 2006-12-21 | Itano Kogyo Kk | Cooling device |
-
2017
- 2017-06-07 CN CN201710421880.3A patent/CN107060915A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1208148A (en) * | 1997-07-30 | 1999-02-17 | 东芝株式会社 | Feed water heating system for power generating plant |
| DE19845739A1 (en) * | 1998-10-05 | 2000-04-06 | Abb Patent Gmbh | Thermal power station with liquid or gas solution, has heat exchangers in pressure buffer, collection containers with media for alternate solution heating, heating solution as required, and cooling solution |
| JP2006343084A (en) * | 2005-06-10 | 2006-12-21 | Itano Kogyo Kk | Cooling device |
Non-Patent Citations (1)
| Title |
|---|
| 张培杰: ""热泵回收空冷机组余热的技术研究和经济性分析"", 《CNKI优秀硕士学位论文全文库》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2708865A1 (en) * | 2017-10-11 | 2019-04-11 | Olavarria Rodriguez Arango Rafael | Electric energy storage system with heat pump and steam accumulators (Machine-translation by Google Translate, not legally binding) |
| WO2019073094A1 (en) * | 2017-10-11 | 2019-04-18 | Olavarria Rodriguez Arango Rafael | System for storing electrical energy with heat pump and steam accumulators |
| CN113898429A (en) * | 2021-11-09 | 2022-01-07 | 华北电力大学（保定） | Supercritical reheat regenerative Rankine cycle system |
| CN113898429B (en) * | 2021-11-09 | 2023-07-21 | 华北电力大学（保定） | Supercritical reheat regenerative Rankine cycle system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106979041B (en) | A kind of turbine low pressure cylinder high vacuum takes off the remodeling method of cylinder operation thermoelectricity decoupled system | |
| CN206890633U (en) | A kind of recovery exhausted spare heat system in parallel based on absorption heat pump and high back pressure | |
| CN108317579A (en) | A kind of cogeneration of heat and power fully-condensed type heat recovery technology | |
| CN101696643B (en) | Low-temperature heat energy recovering apparatus of heat and electricity co-generation and recovering method thereof | |
| CN208124429U (en) | A kind of thermal power plant unit steam extraction waste heat recycling system | |
| CN101967999A (en) | Combined heat and power generation energy saving device using afterheat to supply heat and energy saving method | |
| CN201560812U (en) | Cogeneration low temperature thermal energy recovery device | |
| CN206683276U (en) | A kind of absorption type heat pump heat distribution system that driving vapour source is adjusted using injector | |
| CN101943435A (en) | Thermoelectricity co-generation energy-saving device for supplying heat by using waste heat and energy-saving method thereof | |
| CN107939548A (en) | Internal combustion engine UTILIZATION OF VESIDUAL HEAT IN cooling heating and power generation system and its method of work | |
| CN106761981A (en) | A kind of thermoelectricity decoupled system for improving hotspot stress | |
| CN209308763U (en) | A kind of air-cooled electricity generation system containing internal function of recovering waste heat | |
| CN107218094A (en) | A kind of multiple pressure flashes the device of organic Rankine bottoming cycle cogeneration | |
| CN104501275A (en) | Stepped heating and supplying system sufficiently utilizing waste heat of power plant | |
| CN105840261B (en) | A kind of operation method for the system and the system for reclaiming residual heat of air compressor generating | |
| CN208253694U (en) | A kind of waste heat recycling system reducing heat supply network return water temperature | |
| CN207813675U (en) | A kind of co-generation unit for carrying on the back heat supply for solidifying pumping | |
| CN108119191A (en) | The new complementary energy exhaust heat recovery power generation reconstruction structure of steel plant and its method of work | |
| CN107060915A (en) | Heat pump cycle water backheat Rankine cycle system | |
| CN105626170B (en) | The big hotspot stress co-generation unit and its method of work of a kind of use multi-stage heat pump | |
| CN206037003U (en) | Secondary reheating unit EC BEST steam turbine steam exhaust heating deoxidization boiler feed water's thermodynamic system | |
| CN106989382A (en) | A kind of thermal power plant Slag Cooler for Circulation Fluidized Bed Boiler cooling water system | |
| CN204691833U (en) | A kind of circulating water afterheat utilized device | |
| CN206786696U (en) | Thermal power plant Slag Cooler for Circulation Fluidized Bed Boiler cooling water system | |
| CN206345827U (en) | A kind of crude distillation tower top WHRS |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170818 |