CN109764326A - A kind of the lignite base electricity water co-feeding system and working method of integrated absorption heat pump - Google Patents

A kind of the lignite base electricity water co-feeding system and working method of integrated absorption heat pump Download PDF

Info

Publication number
CN109764326A
CN109764326A CN201811537308.4A CN201811537308A CN109764326A CN 109764326 A CN109764326 A CN 109764326A CN 201811537308 A CN201811537308 A CN 201811537308A CN 109764326 A CN109764326 A CN 109764326A
Authority
CN
China
Prior art keywords
heat
heat pump
water
condenser
absorber
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
Application number
CN201811537308.4A
Other languages
Chinese (zh)
Inventor
王进仕
严俊杰
刘明
刘继平
种道彤
陈伟雄
李�根
邢秦安
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Xi an Jiaotong University
Original Assignee
Xi an Jiaotong University
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Xi an Jiaotong University filed Critical Xi an Jiaotong University
Priority to CN201811537308.4A priority Critical patent/CN109764326A/en
Publication of CN109764326A publication Critical patent/CN109764326A/en
Pending legal-status Critical Current

Links

Classifications

    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00Adapting or protecting infrastructure or their operation
    • Y02A30/27Relating to heating, ventilation or air conditioning [HVAC] technologies
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/62Absorption based systems
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

Abstract

The invention discloses the lignite base electricity water co-feeding system and working method of a kind of integrated absorption heat pump, which includes boiler, steam turbine, generator, condenser, condensate pump, Steam Turbine Regenerative System, drying machine, dry gas deduster, heat pump generator, condenser and heat pump absorber;The present invention is on the basis of lignite flue gas predrying electricity generation system, using absorption heat pump step recycling dry gas waste heat for heat-setting water or heating air preheater inlet air, simultaneously using the water vapour in heat pump cycle recycling dry gas, electric water co-feeding system is formed;Wherein heat pump is open system, and driving heat source is dry gas sensible heat and extracted steam from turbine, and low-temperature heat source is dry gas latent heat, and lack of gas are passed directly into absorber, eliminate evaporator link, improve system performance and reduce system investments.

Description

A kind of the lignite base electricity water co-feeding system and working method of integrated absorption heat pump
Technical field
The present invention relates to lignite technical field of power generation, and in particular to a kind of lignite base electricity water alliance of integrated absorption heat pump System and working method.
Background technique
Lignite is the pit coal that a kind of moisture content is high, calorific value is low, the rich reserves, cheap in China, be it is following I One of the main fuel of state's thermoelectricity.Directly combustion lignite electricity generation system boiler exhaust heat loss is big, and subsidiary engine power consumption is high, therefore generates electricity Efficiency is lower.Predrying upgrading is carried out to lignite, its moisture is reduced, boiler exhaust gas can be made to reduce, to improve electricity generation system effect Rate.The lack of gas that lignite pre-drying process generates contain a large amount of water vapours, contain biggish latent heat, are recycled to it, and one Aspect can further lifting system efficiency, on the other hand there is additional water-saving benefit.
Summary of the invention
The purpose of the present invention is to provide the lignite base electricity water co-feeding system and working method of a kind of integrated absorption heat pump, Wherein heat pump is open system, and driving heat source is dry gas sensible heat and extracted steam from turbine, and low-temperature heat source is latent for dry gas Heat, and lack of gas are passed directly into absorber, eliminate evaporator link, improve system performance and reduce system investments.
In order to achieve the above object, the present invention adopts the following technical scheme:
A kind of lignite base electricity water co-feeding system of integrated absorption heat pump, including boiler 1, steam turbine 2, generator 3, condensing Device 5, condensate pump 6, Steam Turbine Regenerative System 7, drying machine 8, dry gas deduster 9, heat pump generator 10,12 and of condenser Heat pump absorber 13;
Boiler 1, steam turbine 2 and generator 3 are sequentially connected;Exhaust outlet, condenser 5, the condensate pump 6, steamer of steam turbine 2 Machine heat regenerative system 7 and boiler 1 are sequentially connected;Turbine bleed point 4 is connected with Steam Turbine Regenerative System 7;
Condenser 12 is equipped in heat pump generator 10,1 flue gas bleeding point of boiler is connected with the drying source entrance of drying machine 8 Logical, the lack of gas outlet of drying machine 8 is connected with 9 entrance of dry gas deduster, and 9 gas outlet of dry gas deduster and heat pump are sent out The entrance of first group of heat exchanger tube of raw device 10 is connected, and the dust removal port of 9 lower end of dry gas deduster and the conveying of moisture-free coal fill It sets and is connected;The outlet of 10 first groups of heat exchanger tubes of heat pump generator is passed directly into heat pump absorber 13;The liquid of heat pump absorber 13 Body outlet is connected through weak solution pipeline with heat pump generator 10, and the liquid outlet of heat pump generator 10 is through concentrated solution pipeline and heat The liquid inlet of pump absorber 13 is connected;The liquid outlet of condenser 12 is connected with water container;Heat pump generator 10 The entrance of second group of heat exchanger tube is connected with certain level-one regenerative steam mouth of turbine bleed point 4, and the second of heat pump generator 10 The outlet of group heat exchanger tube is connected with the hot well of 5 lower part of condenser;
The heat exchanging pipe entrance of heat pump absorber 13 and the condensate line bypass of Steam Turbine Regenerative System 7 or and steam air heater 17 heating tube outlet is connected, and the heat exchanging pipe outlet of heat pump absorber 13 is connected with 12 heat exchange tube inlet of condenser;It is cold 12 heat transfer tube outlet of condenser is connected with the condensate line after certain primary heater of Steam Turbine Regenerative System 7 or and steam air heater 17 heating tube inlet is connected.
Vacuum pump 14 is set on heat pump absorber 13;Liquid knockout 11 is set between heat pump generator 10 and condenser 12;Heat Solution pump 15 and solution heat exchange are installed on the pipeline that the outlet of pump generator 10 is connected with the entrance of heat pump absorber 13 Device 16;The heat pump generator 10, liquid knockout 11, condenser 12, heat pump absorber 13, solution pump 15 and solution heat exchanger 16 Combination forms absorption heat pump.
The absorption heat pump uses CaCl2Solution is as working medium.
The drying machine 8 uses hybrid drying machine.
In the heat pump absorber 13, concentrated solution is directly contacted by the way of spray with lack of gas, realizes that heat is changed and inhaled Receive the water vapour in lack of gas.
A kind of working method of the lignite base electricity water co-feeding system of integrated absorption heat pump, is extracted from boiler 1 Partial fume is sent into drying brown coal raw coal in drying machine 8, and the coal after drying is sent into boiler 1 and burns, the flue gas for generation of burning one Divide and is extracted for drying brown coal, a part heating working medium water in boiler 1;Working-medium water heat absorption becomes high-temperature high-pressure steam, It is sent into expansion work in steam turbine 2, mechanical work is converted to power output by generator 3;The turbine discharge of function was done solidifying Condensation becomes condensed water in vapour device 5, condensed water through condensate pump 6,7 deoxygenation of Steam Turbine Regenerative System, heating, boosting become to Water is sent into boiler 1, starts new circulation;The lack of gas generated in drying machine 8 are sent into dry gas deduster 9, carry in lack of gas Pulverized coal particle is re-fed into moisture-free coal by the dust removal port of 9 lower end of dry gas deduster eventually enters into the burning of boiler 1, dedusting Driving heat source one of of the lack of gas afterwards as absorption heat pump is passed through in heat pump generator 10 and heats heat pump generator using sensible heat Weak solution in 10, the lack of gas after discharging sensible heat are passed directly into heat pump absorber 13 as low-temperature heat source, the water vapour in lack of gas It is absorbed by the concentrated solution in heat pump absorber 13, the incondensable gas in lack of gas extracts external discharge out by vacuum pump 14;Due to Sensible heat is smaller compared to latent heat quantity in dry gas, in order to all recycle its latent heat, needs to be supplemented part driving heat source, Second part driving heat source using extracted steam from turbine as heat pump generator 10, second group of heat exchanger tube of heat pump generator 10 Entrance is connected with certain level-one regenerative steam mouth of turbine bleed point 4, the outlet of second group of heat exchanger tube of heat pump generator 10 with The hot well of 5 lower part of condenser is connected;Concentrated solution in heat pump absorber 13, which absorbs water vapour, becomes weak solution, while releasing heat Heat-setting water or heating air preheater inlet air;Weak solution is sent into heat pump hair by solution pump 15, solution heat exchanger 16 Raw device 10, the sensible heat of absorption dehydration lack of gas and extracted steam from turbine heat in heat pump generator 10, evaporating water vapour becomes dense Solution, concentrated solution is returned to by solution heat exchanger 16 starts new circulation in heat pump absorber 13;The water vapour evaporated into Enter condenser 12, reheating condensed water or heating air preheater inlet air, the water recovery after heat release is led at liquid water Pipeline extraction is crossed, which is exactly water vapour entrained in dry gas, realizes recycling by absorption heat pump;
When being used for heat-setting water using absorption heat pump recycling lack of gas waste heat, the concentrated solution in heat pump absorber 13 absorbs The heat that the heat and water vapour that water vapour is released condense release in condenser 12 all needs to pass to condensed water, therefore steamer The condensate line bypass of machine heat regenerative system 7 is connected with the heat exchanging pipe entrance of absorber 13;The heat exchanging pipe of absorber 13 Outlet is connected with 12 heat exchange tube inlet of condenser;12 heat transfer tube outlet of condenser and certain level-one of Steam Turbine Regenerative System 7 add Condensate line after hot device is connected;
It is used to heat 17 inlet air of steam air heater when using absorption heat pump recycling lack of gas waste heat, it is dense molten in absorber 13 The heat that liquid absorbs the heat of water vapour releasing and water vapour condenses release in condenser 12 all needs to pass to steam air heater 17 Inlet air, therefore the heating tube outlet of steam air heater 17 is connected with the heat exchanging pipe entrance of absorber 13;Absorber 13 changes Heat pipe way outlet is connected with 12 heat exchange tube inlet of condenser;The heating tube inlet of 12 heat transfer tube outlet of condenser and steam air heater 17 It is connected.
The present invention proposes a kind of lignite base electricity water co-feeding system of integrated absorption heat pump, generates electricity in lignite flue gas predrying In system-based, using absorption heat pump step recycling dry gas waste heat for heat-setting water or heating air preheater entrance Air, while using the water vapour in heat pump cycle recycling dry gas, form electric water co-feeding system.Wherein heat pump is open type system System, driving heat source are dry gas sensible heat and extracted steam from turbine, and low-temperature heat source is dry gas latent heat, and lack of gas are passed directly into Absorber eliminates evaporator link, improves system performance and reduces system investments.
Compared to the prior art compared with the present invention has following advantage:
(1) system proposed by the invention is solidifying using the heat in absorption heat pump substep step recycling dry gas It bears water or steam air heater inlet air, and the supplement using extracted steam from turbine as driving heat source, it is ensured that recycled more than lack of gas completely Heat, to improve the efficiency of energy utilization of entire flue gas predrying lignite electricity generation system, while by molten in heat pump cycle The method that liquid absorbs, evaporation condenses again has recycled the moisture in brown coal drying lack of gas, realizes electric water alliance;
(2) absorption heat pump employed in the present invention is open system, eliminates evaporator link, reduces and exchanged heat The irreversible loss of journey, while reducing system investments;
(3) present invention is absorbed using heat pump cycle using solution, the method that evaporation condenses again has recycled brown coal drying lack of gas In moisture, and solution absorption process greatly improves the water rate of recovery and recycle-water quality using the direct way of contact is sprayed.
Detailed description of the invention
Fig. 1 is a kind of lignite base electricity water co-feeding system schematic diagram of integrated absorption heat pump of the present invention.
Fig. 2 is the lignite base electricity water co-feeding system schematic diagram of another integrated absorption heat pump of the present invention.
Specific embodiment
Now in conjunction with embodiment, attached drawing, the invention will be further described:
As shown in Figure 1, a kind of lignite base electricity water co-feeding system of integrated absorption heat pump of the present invention, it is characterised in that: packet Boiler 1, steam turbine 2, generator 3, condenser 5, condensate pump 6, Steam Turbine Regenerative System 7, drying machine 8, dry gas are included to remove Dirt device 9, heat pump generator 10, condenser 12 and heat pump absorber 13;
Boiler 1, steam turbine 2 and generator 3 are sequentially connected;Exhaust outlet, condenser 5, the condensate pump 6, steamer of steam turbine 2 Machine heat regenerative system 7 and boiler 1 are sequentially connected;Turbine bleed point 4 is connected with Steam Turbine Regenerative System 7;
Condenser 12 is equipped in heat pump generator 10,1 flue gas bleeding point of boiler is connected with the drying source entrance of drying machine 8 Logical, the lack of gas outlet of drying machine 8 is connected with 9 entrance of dry gas deduster, and 9 gas outlet of dry gas deduster and heat pump are sent out The entrance of first group of heat exchanger tube of raw device 10 is connected, and the dust removal port of 9 lower end of dry gas deduster and the conveying of moisture-free coal fill It sets and is connected;The outlet of 10 first groups of heat exchanger tubes of heat pump generator is passed directly into heat pump absorber 13;The liquid of heat pump absorber 13 Body outlet is connected through weak solution pipeline with heat pump generator 10, and the liquid outlet of heat pump generator 10 is through concentrated solution pipeline and heat The liquid inlet of pump absorber 13 is connected;The liquid outlet of condenser 12 is connected with water container;Heat pump generator 10 The entrance of second group of heat exchanger tube is connected with certain level-one regenerative steam mouth of turbine bleed point 4, and the second of heat pump generator 10 The outlet of group heat exchanger tube is connected with the hot well of 5 lower part of condenser;
As shown in Fig. 2, the heat exchanging pipe entrance of heat pump absorber 13 and the condensate line of Steam Turbine Regenerative System 7 bypass Or be connected with the outlet of the heating tube of steam air heater 17, heat exchanging pipe outlet and 12 heat exchange tube inlet of condenser of heat pump absorber 13 It is connected;12 heat transfer tube outlet of condenser is connected with the condensate line after certain primary heater of Steam Turbine Regenerative System 7 Or it is connected with the heating tube inlet of steam air heater 17.
As the preferred embodiment of the present invention, vacuum pump 14 is set on heat pump absorber 13;Heat pump generator 10 with Liquid knockout 11 is set between condenser 12;Pacify on the pipeline that the outlet of heat pump generator 10 is connected with the entrance of heat pump absorber 13 Equipped with solution pump 15 and solution heat exchanger 16;The heat pump generator 10, liquid knockout 11, condenser 12, heat pump absorber 13, Solution pump 15 and the combination of solution heat exchanger 16 form absorption heat pump.
As the preferred embodiment of the present invention, the absorption heat pump uses CaCl2Solution is as working medium.
As the preferred embodiment of the present invention, the drying machine 8 uses hybrid drying machine.
As the preferred embodiment of the present invention, in the heat pump absorber 13, concentrated solution using spray by the way of with Lack of gas directly contact, and realize that heat changes and absorbs the water vapour in lack of gas.
As shown in Figure 1, a kind of work side of the lignite base electricity water co-feeding system of integrated absorption heat pump of the present invention Method is sent into drying brown coal raw coal in drying machine 8 from extraction section flue gas in boiler 1, and the coal after drying is sent into boiler 1 and burns, combustion The flue gas a part generated is burnt to be extracted for drying brown coal, a part heating working medium water in boiler 1;Working-medium water heat absorption becomes High-temperature high-pressure steam, is sent into expansion work in steam turbine 2, and mechanical work is converted to power output by generator 3;Did function Turbine discharge condenses in condenser 5 becomes condensed water, condensed water through condensate pump 6,7 deoxygenation of Steam Turbine Regenerative System, plus Heat, boosting become water supply, are sent into boiler 1, start new circulation;The lack of gas generated in drying machine 8 are sent into dry gas deduster 9, the pulverized coal particle carried in lack of gas is re-fed into moisture-free coal by the dust removal port of 9 lower end of dry gas deduster to be eventually entered into Boiler 1 burns, driving heat source one of of the lack of gas as absorption heat pump after dedusting, is passed through in heat pump generator 10 and utilizes sensible heat The weak solution in heat pump generator 10 is heated, the lack of gas after discharging sensible heat are passed directly into heat pump absorber 13 as low-temperature heat source, Water vapour in lack of gas is absorbed by the concentrated solution in heat pump absorber 13, and the incondensable gas in lack of gas is extracted out by vacuum pump 14 Externally discharge;Since sensible heat is smaller compared to latent heat quantity in dry gas, in order to all recycle its latent heat, need to be supplemented Part driving heat source, the second part driving heat source using extracted steam from turbine as heat pump generator 10, heat pump generator 10 The entrance of second group of heat exchanger tube is connected with certain level-one regenerative steam mouth of turbine bleed point 4, and second group of heat pump generator 10 The outlet of heat exchanger tube is connected with the hot well of 5 lower part of condenser;Concentrated solution in absorber 13, which absorbs water vapour, becomes weak solution, together When release heat condensed water or heating air preheater inlet air;Weak solution passes through solution pump 15, solution heat exchanger 16 It is sent into heat pump generator 10, the sensible heat of absorption dehydration lack of gas and extracted steam from turbine heat in heat pump generator 10, evaporation water outlet Steam becomes concentrated solution, and concentrated solution is returned to by solution heat exchanger 16 starts new circulation in heat pump absorber 13;It evaporates Water vapour enter condenser 12, reheating condensed water or heating air preheater inlet air, the water recovery after heat release It at liquid water, is drawn by pipeline, which is exactly water vapour entrained in dry gas, is realized by absorption heat pump Recycling;
As shown in Figure 1, heat-setting water ought be used for using absorption heat pump recycling lack of gas waste heat, in heat pump absorber 13 The heat that concentrated solution absorbs the heat of water vapour releasing and water vapour condenses release in condenser 12 all needs to pass to condensation Water, therefore the condensate line bypass of Steam Turbine Regenerative System 7 is connected with the heat exchanging pipe entrance of absorber 13;Absorber 13 Heat exchanging pipe outlet be connected with 12 heat exchange tube inlet of condenser;12 heat transfer tube outlet of condenser and Steam Turbine Regenerative System 7 Certain primary heater after condensate line be connected;
As shown in Fig. 2, being used to heat 17 inlet air of steam air heater, absorber when using absorption heat pump recycling lack of gas waste heat The heat that concentrated solution in 13 absorbs the heat of water vapour releasing and water vapour condenses release in condenser 12 all needs to transmit Give steam air heater 17 inlet air, therefore the heating tube outlet of steam air heater 17 is connected with the heat exchanging pipe entrance of absorber 13;It inhales The heat exchanging pipe outlet for receiving device 13 is connected with 12 heat exchange tube inlet of condenser;12 heat transfer tube outlet of condenser and steam air heater 17 Heating tube inlet is connected.

Claims (6)

1. a kind of lignite base electricity water co-feeding system of integrated absorption heat pump, it is characterised in that: including boiler (1), steam turbine (2), generator (3), condenser (5), condensate pump (6), Steam Turbine Regenerative System (7), drying machine (8), dry gas dedusting Device (9), heat pump generator (10), condenser (12) and heat pump absorber (13);
Boiler (1), steam turbine (2) and generator (3) are sequentially connected;Exhaust outlet, the condenser (5), condensate pump of steam turbine (2) (6), Steam Turbine Regenerative System (7) and boiler (1) are sequentially connected;Turbine bleed point (4) and Steam Turbine Regenerative System (7) phase Even;
Condenser (12) are equipped in heat pump generator (10), the drying source entrance of boiler (1) flue gas bleeding point and drying machine (8) It is connected, the lack of gas outlet of drying machine (8) is connected with dry gas deduster (9) entrance, dry gas deduster (9) outlet Mouthful be connected with the entrance of first group of heat exchanger tube of heat pump generator (10), the dust removal port of dry gas deduster (9) lower end and The conveying device of moisture-free coal is connected;The outlet of (10) first groups of heat exchanger tubes of heat pump generator is passed directly into heat pump absorber (13);The liquid outlet of heat pump absorber (13) is connected through weak solution pipeline with heat pump generator (10), heat pump generator (10) liquid outlet is connected through concentrated solution pipeline with the liquid inlet of heat pump absorber (13);The liquid discharge of condenser (12) Mouth is connected with water container;The entrance of second group of heat exchanger tube of heat pump generator (10) is a certain with turbine bleed point (4) Grade regenerative steam mouth is connected, the hot well phase of the outlet and condenser (5) lower part of second group of heat exchanger tube of heat pump generator (10) Connection;
The heat exchanging pipe entrance of heat pump absorber (13) and the condensate line bypass of Steam Turbine Regenerative System (7) or and steam air heater (17) heating tube outlet is connected, and the heat exchanging pipe outlet of heat pump absorber (13) is connected with condenser (12) heat exchange tube inlet It is logical;Condenser (12) heat transfer tube outlet is connected with the condensate line after certain primary heater of Steam Turbine Regenerative System (7) Or it is connected with the heating tube inlet of steam air heater (17).
2. a kind of lignite base electricity water co-feeding system of integrated absorption heat pump according to claim 1, it is characterised in that: Vacuum pump (14) are set on heat pump absorber (13);Liquid knockout (11) are set between heat pump generator (10) and condenser (12);Heat Solution pump (15) and solution are installed on the pipeline that the outlet of pump generator (10) is connected with the entrance of heat pump absorber (13) Heat exchanger (16);The heat pump generator (10), liquid knockout (11), condenser (12), heat pump absorber (13), solution pump (15) and solution heat exchanger (16) combination forms absorption heat pump.
3. a kind of lignite base electricity water co-feeding system of integrated absorption heat pump according to claim 2, it is characterised in that: institute Absorption heat pump is stated using CaCl2Solution is as working medium.
4. a kind of lignite base electricity water co-feeding system of integrated absorption heat pump according to claim 1, it is characterised in that: institute It states drying machine (8) and uses hybrid drying machine.
5. a kind of lignite base electricity water co-feeding system of integrated absorption heat pump according to claim 1, it is characterised in that: In the heat pump absorber (13), concentrated solution is directly contacted by the way of spray with lack of gas, realizes that heat is changed and absorbed in lack of gas Water vapour.
6. a kind of work side of the lignite base electricity water co-feeding system of integrated absorption heat pump described in any one of claim 1 to 5 Method, it is characterised in that:
It is sent into drying brown coal raw coal in drying machine (8) from extraction section flue gas in boiler (1), the coal after drying is sent into boiler (1) Burning, the flue gas a part for generation of burning are extracted for drying brown coal, a part heating working medium water in boiler (1);Working medium Water heat absorption becomes high-temperature high-pressure steam, is sent into expansion work in steam turbine (2), and mechanical work is converted to electricity by generator (3) It can output;The turbine discharge for doing function condenses in condenser (5) becomes condensed water, and condensed water is through condensate pump (6), steamer Machine heat regenerative system (7) deoxygenation, heating, boosting become water supply, are sent into boiler (1), start new circulation;It is generated in drying machine (8) Lack of gas be sent into dry gas deduster (9), the pulverized coal particle carried in lack of gas being removed by dry gas deduster (9) lower end Dirt mouth, which is re-fed into moisture-free coal, eventually enters into boiler (1) burning, driving heat source of the lack of gas as absorption heat pump after dedusting One of, it is passed through in heat pump generator (10) using the weak solution in sensible heat heating heat pump generator (10), it is weary after discharging sensible heat Gas is passed directly into heat pump absorber (13) as low-temperature heat source, and the water vapour in lack of gas is by the concentrated solution in heat pump absorber (13) It absorbs, the incondensable gas in lack of gas passes through vacuum pump (14) extraction externally discharge;Due in dry gas sensible heat compared to latent Hot quantity is smaller, in order to all recycle its latent heat, needs to be supplemented part driving heat source, using extracted steam from turbine as heat pump The second part driving heat source of generator (10), the entrance and turbine bleed point of second group of heat exchanger tube of heat pump generator (10) (4) certain level-one regenerative steam mouth is connected, outlet and condenser (5) lower part of second group of heat exchanger tube of heat pump generator (10) Hot well is connected;Concentrated solution in heat pump absorber (13), which absorbs water vapour, becomes weak solution, while releasing heat condensed water Or heating air preheater inlet air;Weak solution is sent into heat pump generator by solution pump (15), solution heat exchanger (16) (10), in heat pump generator (10) absorption dehydration lack of gas sensible heat and extracted steam from turbine heat, evaporating water vapour becomes dense Solution, concentrated solution is returned to by solution heat exchanger (16) starts new circulation in heat pump absorber (13);The water evaporated steams Vapour enters condenser (12), and reheating condensed water or heating air preheater inlet air, the water recovery after heat release is at liquid State water, is drawn by pipeline, which is exactly water vapour entrained in dry gas, is realized back by absorption heat pump It receives;
When being used for heat-setting water using absorption heat pump recycling lack of gas waste heat, the concentrated solution in heat pump absorber (13) absorbs water The heat and water vapour that steam is released heat of condensation release in condenser (12) all need to pass to condensed water, therefore steamer The condensate line bypass of machine heat regenerative system (7) is connected with the heat exchanging pipe entrance of absorber (13);Absorber (13) are changed Heat pipe way outlet is connected with condenser (12) heat exchange tube inlet;Condenser (12) heat transfer tube outlet and Steam Turbine Regenerative System (7) the condensate line after certain primary heater is connected;
It is used to heat steam air heater (17) inlet air when using absorption heat pump recycling lack of gas waste heat, it is dense molten in absorber (13) Liquid, which absorbs the heat that water vapour is released and the water vapour heat of condensation release in condenser (12), all to be needed to pass to steam air heater (17) inlet air, therefore the heating tube outlet of steam air heater (17) is connected with the heat exchanging pipe entrance of absorber (13);It absorbs (12 heat exchange tube inlets are connected with condenser for the heat exchanging pipe outlet of device (13);Condenser (12) heat transfer tube outlet and steam air heater (17) heating tube inlet is connected.
CN201811537308.4A 2018-12-15 2018-12-15 A kind of the lignite base electricity water co-feeding system and working method of integrated absorption heat pump Pending CN109764326A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811537308.4A CN109764326A (en) 2018-12-15 2018-12-15 A kind of the lignite base electricity water co-feeding system and working method of integrated absorption heat pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811537308.4A CN109764326A (en) 2018-12-15 2018-12-15 A kind of the lignite base electricity water co-feeding system and working method of integrated absorption heat pump

Publications (1)

Publication Number Publication Date
CN109764326A true CN109764326A (en) 2019-05-17

Family

ID=66450678

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201811537308.4A Pending CN109764326A (en) 2018-12-15 2018-12-15 A kind of the lignite base electricity water co-feeding system and working method of integrated absorption heat pump

Country Status (1)

Country Link
CN (1) CN109764326A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110243009A (en) * 2019-06-17 2019-09-17 西安交通大学 Absorption heat pump heat accumulation and thermal desorption system and its working method for thermal power plant unit

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102954617A (en) * 2012-11-27 2013-03-06 西安交通大学 Compound heat pump with steam type injection/lithium bromide absorption
CN104390388A (en) * 2014-11-14 2015-03-04 西安交通大学 Steam type spraying-dead steam direct absorption type compound heat pump system
CN104676971A (en) * 2014-12-23 2015-06-03 西安交通大学 Brown coal pre-drying power-heat generation water recycling system of integrated absorption type heat pump
CN105783023A (en) * 2016-05-04 2016-07-20 中国华能集团清洁能源技术研究院有限公司 Device and method for driving air heater through absorption type heat pump
JP2017058049A (en) * 2015-09-15 2017-03-23 荏原冷熱システム株式会社 Absorption heat pump system
CN206054016U (en) * 2016-08-16 2017-03-29 华电电力科学研究院 A kind of indirect air cooling unit circulating water exhaust heat recovery device
CN106705186A (en) * 2017-02-27 2017-05-24 西安热工研究院有限公司 Lignite-based cogeneration system
CN207701181U (en) * 2017-12-30 2018-08-07 华能国际电力股份有限公司丹东电厂 A kind of thermoelectricity decoupled system

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102954617A (en) * 2012-11-27 2013-03-06 西安交通大学 Compound heat pump with steam type injection/lithium bromide absorption
CN104390388A (en) * 2014-11-14 2015-03-04 西安交通大学 Steam type spraying-dead steam direct absorption type compound heat pump system
CN104676971A (en) * 2014-12-23 2015-06-03 西安交通大学 Brown coal pre-drying power-heat generation water recycling system of integrated absorption type heat pump
JP2017058049A (en) * 2015-09-15 2017-03-23 荏原冷熱システム株式会社 Absorption heat pump system
CN105783023A (en) * 2016-05-04 2016-07-20 中国华能集团清洁能源技术研究院有限公司 Device and method for driving air heater through absorption type heat pump
CN206054016U (en) * 2016-08-16 2017-03-29 华电电力科学研究院 A kind of indirect air cooling unit circulating water exhaust heat recovery device
CN106705186A (en) * 2017-02-27 2017-05-24 西安热工研究院有限公司 Lignite-based cogeneration system
CN207701181U (en) * 2017-12-30 2018-08-07 华能国际电力股份有限公司丹东电厂 A kind of thermoelectricity decoupled system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110243009A (en) * 2019-06-17 2019-09-17 西安交通大学 Absorption heat pump heat accumulation and thermal desorption system and its working method for thermal power plant unit
CN110243009B (en) * 2019-06-17 2020-10-27 西安交通大学 Absorption heat pump heat storage and release system for heat supply unit and working method thereof

Similar Documents

Publication Publication Date Title
CN105003351B (en) Gas machine waste heat energy is carried out the energy tower of the multi-energy form output of step recovery
CN102759259B (en) Brown coal upgrading-power generation co-production system
CN101858231B (en) Energy supply system mainly through gas and steam combined cycle cogeneration
CN102353237B (en) High-moisture-content lignite predrying method and system integrated with thermal power plant
CN100462531C (en) System and method for improving efficiency of combined cycle electric power plant
CN104963776B (en) A kind of solar heat complementation association circulating power generation system
CN104180675B (en) Heating furnace residual heat integrative utilizes electricity generation system
CN102080582B (en) Coal-fired power generation and waste heat power generation coupling system for private station of cement kiln
CN202328165U (en) Smoke energy cascaded utilization system and thermal power generator set adopting same
CN108331625B (en) A kind of electricity generation system using the Natural Gas Power Plant smoke evacuation latent heat of vaporization
CN103062754B (en) Power station machine furnace integrated cold end comprehensive optimization system
CN202973061U (en) Power station engine and boiler integrated cold end comprehensive optimization system
WO2016110124A1 (en) Gas steam combined cycle central heating device and heating method
CN102330967A (en) Flue gas energy cascade utilization system
CN101761915B (en) Combined cycle generation system of high-pressure oxygen-enriched combustion fluidized bed
TWI645104B (en) Fossil fuel power plant
CN101900347A (en) System for high-grade recycling waste heat of smoke discharged from boiler of power station
CN102192639A (en) Method for reducing coal consumption of coal-fired power plant by adding fluidized bed drying system
CN105402926B (en) A kind of combined cooling and power system and refrigeration, power generation and combined cooling and power method based on the system
CN203501144U (en) Waste heat recovery system for gas-fired boiler
CN105179023B (en) A kind of predrying brown coal electricity generation system of integrated first-class absorption type heat pump and method
CN202647717U (en) Thermal power plant waste heat utilization system and thermal power generating unit
CN101696643A (en) Low-temperature heat energy recovering apparatus of heat and electricity co-generation and recovering method thereof
CN103574587B (en) Waste heat utilizing system of thermal power plant and thermal power unit
CN203669944U (en) Steam-extraction steam source optimizing system, based on brown coal unit, of dryer

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

Application publication date: 20190517

WD01 Invention patent application deemed withdrawn after publication