CN202209817U - District cooling, heating and power combined energy system based on absorption heat exchange - Google Patents
District cooling, heating and power combined energy system based on absorption heat exchange Download PDFInfo
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- CN202209817U CN202209817U CN2011203233081U CN201120323308U CN202209817U CN 202209817 U CN202209817 U CN 202209817U CN 2011203233081 U CN2011203233081 U CN 2011203233081U CN 201120323308 U CN201120323308 U CN 201120323308U CN 202209817 U CN202209817 U CN 202209817U
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Abstract
The utility model relates to a district cooling, heating and power combined energy system based on absorption heat exchange. The system comprises devices of four parts which are connected by an energy transmission and distribution network composed by pipelines with various pumps and valves, wherein the devices of four parts refer to a thermal power plant steam turbine power generation circulation subsystem arranged in a thermal power plant and used for power generating and heating, an absorption exhausted steam and heat recovery subsystem arranged in an origin station of the thermal substation and used for improving heating and generating efficiency by utilizing exhausted heat, an absorption heat exchange station / energy center arranged in a secondary network thermal substation and a cooling station, and a decentralized or semi-centralized air conditioning hot water subsystem arranged at users' buildings for heating / air conditioning users. The district cooling, heating and power combined energy system based on absorption heat exchange can efficiently improve the comprehensive utilization benefits of the thermal system.
Description
Technical field
The utility model belongs to comprehensive utilization technique field, thermoelectric cold energy source, particularly a kind of regional thermoelectric cold associating energy resource system based on absorption heat exchange.
Background technology
The main system form of present Chinese northern area heating is: cogeneration of heat and power, district boiler room and dispersion heating respectively account for about 1/3; Wherein the primary energy utilization ratio is the highest, emission reduction effect is best, the most rational the applying of cogeneration of heat and power of economy receives the restriction that is difficult to expand on a large scale factors such as heat supply network scale and heat capacity thereof, needs badly and takes better technology path and policy planning to promote.The main present situation of steam power plant's heat supply generating, user heating and cooling is: primary fuels such as a large amount of coal of steam power plant burning, oil, gas; Generating rate in the winter time accounts for 20～25% of primary fuel thermal discharge; Have 40～50% to be used for heat supply approximately; Have 15～25% need discharge into the atmosphere from cooling tower approximately through condenser; Generating in summer rate can reach 30～35%, and small amount of thermal energy is sent to some hot user such as hotel and is used to produce domestic hot-water etc. through heat distribution pipe network, but most of heat is then discharged into the atmosphere in vain.For the hot user in terminal, carry out heating through the thermal substation heat exchange winter, then establishes summer such as a cover electricity refrigeration or absorption system etc. in addition and solve air-conditioning cooling problem.Connecting steam power plant's (and concentrating boiler room) is thermal substation with the terminal use's, is provided with the circulation water for heating that large heat exchanger is used to produce desired parameters, limited owing to supply backwater temperature difference simultaneously, large pump need be set so that power to be provided.
Tsing-Hua University river hundred million academicians and professor Fu Lin etc. have creatively developed and have carried out exhaust steam residual heat based on absorption heat exchange and reclaim heat supply and significantly reduce the related patent U.S. Patent No. technology of once netting return water temperature with big temperature difference heat exchange; Promptly adopting absorption heat pump to be drawn gas by middle pressure in steam power plant drives the condensation heat that heat pump reclaims exhaust steam in steam turbine, can make steam power plant's efficiency of energy utilization improve 15～25%; Adopt absorption heat pump that the heat distribution pipe network circulating water temperature is reduced to about 20 ℃ about from 60 ℃ at thermal substation; Thereby improve supply backwater temperature difference greatly; When heating load is identical, can significantly reduce quantity of circulating water to reduce the water circulating pump power consumption, perhaps when quantity of circulating water is constant, significantly improve the defeated heat energy power of heat supply network to enlarge area of heat-supply service.Simultaneously, river hundred million academicians preside over and have developed solution damping air conditioning mode, and more low-grade heat energy capable of using drives and carries out independent humidity control and the terminal falling temperature technique of indoor dry type.Present above-mentioned each item has the power-saving technology and the product of great innovative significance to be applied, and progressively obtains good benefit.
Simultaneously; The inventor of the utility model has developed employing absorption heat pump recovery exhaust steam in steam turbine or cooling-tower circulating water waste heat etc. respectively and has been used for the exhaust steam condensate is heated to the boiler feedwater preheating technology of after heaters heating at different levels, sending into boiler after 85～90 ℃ again, and can save draws gas is used for generating and effective reduction boiler gross coal consumption rate; Developed multiple absorption heat pump technology and the related system integrated technology that relates to the supplying high temperature chilled water or produce the domestic hot-water simultaneously.
But; How from carrying out the angle of therrmodynamic system OVERALL OPTIMIZA-TION DESIGN FOR; The above-mentioned each item of more effective employing has the technology and existing traditional heat utilization technology of novelty; Realize adopting cheap heat energy directly to drive heat supply, air-conditioning,, still need inquire into solution thinking, integrated system and Optimization Design with globality and practicability about heat supply and cooling to obtain maximum energy-saving environmental benefit and economic and social benefits.
The utility model content
The purpose of the utility model is for overcoming the weak point of prior art; Design a kind of regional thermoelectric cold associating energy resource system based on absorption heat exchange; This system does steam power plant, thermal substation and hot user as a whole; Production of energy, supply, transmission & distribution, use and the discharging thereof of the fuel that it is related, steam, electric power, circulating hot water, heating, domestic hot-water, cooling etc. is integrated into the heat supply, the air-conditioning new system that adopt heat energy directly to drive; To reach the total optimization of Integrated Energy cascade utilization and economy thereof, targetedly relevant design and operational factor are adjusted, the highest to reach the energy resource system comprehensive utilization benefit.
A kind of regional thermoelectric cold associating energy resource system that the utility model proposes based on absorption heat exchange, this system comprises four equipment components, and is formed by connecting the energy transmission and distribution network that the pipeline that has various water pumps and valve constitutes; This four equipment component is respectively: be arranged on being used to generate electricity and reclaiming subsystem with the steam turbine in thermal power plant power generation cycle subsystem of heat supply, the absorption exhaust steam residual heat that utilizes waste heat to improve heat supply and generating efficiency that is arranged on the steam power plant initial station, be arranged on the absorption heat exchange station/energy centre in secondary net thermal substation and the cold supply station and be arranged on the distributing that offers heat supply/air conditioner user or the half centralized air-conditioning hot water subsystem of user Architectural Services Department of steam power plant; Wherein, said steam turbine in thermal power plant power generation cycle subsystem mainly is made up of steam turbine, generator, steam boiler, boiler water-suppling heater group, air cooling or water-cooled condenser; Said absorption exhaust steam residual heat reclaims subsystem and comprises that mainly the absorption exhaust steam residual heat that is made up of evaporimeter, condenser, absorber, generator reclaims heat pump and initial station vapor-water heat exchanger; Said absorption heat exchange station/energy centre mainly comprises the absorption heat pump/high temperature absorption refrigeration all-in-one that is made up of all-in-one condenser, all-in-one evaporimeter, all-in-one generator, all-in-one absorber, and Intermediate Heat Exchanger, regenerator, domestic hot-water's heat exchanger; Said distributing or half centralized air-conditioning hot water subsystem comprise that mainly the full heat that is made up of humidity control device, surface cooler, blower fan drives independent damping air-conditioning unit; The annexation of each equipment is:
The middle pressure of said steam turbine is drawn gas to export simultaneously and is linked to each other with the high temperature side import that absorption exhaust steam residual heat reclaims the generator of heat pump with the initial station vapor-water heat exchanger, and the exhaust steam outlet of steam turbine links to each other with the exhaust steam side-entrance of air cooling or water-cooled condenser and the heat source side import of the evaporimeter of absorption exhaust steam residual heat recovery heat pump simultaneously; The heat source side outlet that the condensate outlet and the absorption exhaust steam residual heat of air cooling or water-cooled condenser reclaims the evaporimeter of heat pump links to each other after booster pump links to each other with the cold side import that absorption exhaust steam residual heat reclaims the absorber of heat pump; And behind valve, link to each other with the low temperature import of boiler water-suppling heater group of cold side outlet and steam boiler that absorption exhaust steam residual heat reclaims the condenser of heat pump; The high temperature side import of generator also links to each other with the high temperature side import of initial station vapor-water heat exchanger; The outlet of generator links to each other with the boiler water-suppling heater group with the high temperature side outlet of initial station vapor-water heat exchanger; The cold side outlet of condenser also links to each other with the once net backwater import of initial station vapor-water heat exchanger; The backwater import of once netting of initial station vapor-water heat exchanger also links to each other with the cold side import of absorber through valve; The once net of initial station vapor-water heat exchanger supplies water and sends into the all-in-one generator of absorption heat pump/high temperature absorption refrigeration all-in-one by once netting circulating pump; And link to each other with the heat source side import of all-in-one evaporimeter through behind Intermediate Heat Exchanger and regenerator and the domestic hot-water's heat exchanger; Or directly through linking to each other with the heat source side import of all-in-one evaporimeter behind regenerator and the domestic hot-water's heat exchanger; The heat source side outlet of all-in-one evaporimeter links to each other with once net backwater, the surface cooler of the independent damping air-conditioning unit of full heat driving and user's the dry type air conditioning terminal of initial station vapor-water heat exchanger respectively; The import of all-in-one absorber cold side links to each other with user's air conditioning cooling water or heating water water supply line; The outlet of all-in-one condenser cold side links to each other with user's air conditioning cooling water or heating water water return pipeline, and regenerator regeneration hot water is sent into the humidity control device that full heat drives independent damping air-conditioning unit, sends into the indoor air outlet of user through the air of damping temperature adjustment by blower fan.
Characteristics of the utility model and beneficial effect:
This integrated system has been used Tsing-Hua University river hundred million academicians, Fu Lin professor and the utility model designer's up-to-date patented technology achievement; Adopt absorption heat pump to reclaim recirculated cooling water heat, thermal substation or thermic load like steam power plant and absorption heat pump is set to reduce heat supply network recovered temperature, solution damping air-conditioning, multiple special-purpose absorption heat pump and system integration technology etc.; Its innovative point is with the abovementioned technology to be that the integrated technology system that can be applied to whole thermoelectric cold cogeneration therrmodynamic system has been set up on the basis; Wherein the absorption heat pump that adopts of thermal substation integrates winter heating and freeze summer; Its operating mode is different from conventional independent absorption heat pump or Absorption Refrigerator; Thereby its function be for can bearing annual heat supply, cooling needs, and is 200620012010.8,200720310540.5 etc. unite the energy resource system Optimization Design about energy saving building whole therrmodynamic system is carried out systems organization and optimal design according to the patent No..
The utility model is regulated all and can be carried out real time execution control by compensation of thermoelectric cold cogeneration weather and intelligence control system based on heat supply and operation of air conditioner under the annual weather conditions based on the whole year operation of the regional thermoelectric cold associating energy resource system of absorption heat exchange; This system can be according to outdoor climate and the indoor user service requirement and the parameter variation of therrmodynamic system operation; Adjust each equipment executing agency in the system that comprises power-equipments such as steam turbine, absorption heat pump in real time, regulate with the maximum energy-saving of realizing annual different times heating, cooling and heat supply water condition and variation thereof.
The utility model is not the innovation of specific product aspect; And be intended to on the aspect of hot user's therrmodynamic system integral body, proposing the practical solution of complete engineering by steam power plant; To comprise that the related production of energy of driving heat source, electric power, air-conditioning, heating and domestic hot-water, supply, transmission & distribution, use and operation control connection thereof are a system, and adopt therrmodynamic system associating energy system planning technology that energy resource system is optimized design.This system has realized reclaiming the purpose that steam power plant's condensation heat is born user's air conditioning function with raising steam power plant efficiency of energy utilization 15～25%, increase therrmodynamic system area of heat-supply service 30～50%, reduction therrmodynamic system circulating water flow and pump consumption 30～40%, the steam power plant's low grade heat energy driving solution damping air-conditioning unit that adopts cheapness summer and high temperature Absorption Refrigerator; Farthest improve the annual whole comprehensive utilization of energy benefit of system, have the engineering guiding value.
Description of drawings
Fig. 1 is the utility model overall system composition frame chart.
Each unit number is following among Fig. 1: steam turbine 1; Generator 2; Steam boiler 3; Boiler water-suppling heater group 4; Air cooling or water-cooled condenser 5; Absorption exhaust steam residual heat reclaims heat pump 6; Evaporimeter 61; Condenser 62; Absorber 63; Generator 64; Initial station vapor-water heat exchanger 7; Once net backwater 71; Once net supplies water 72; Absorption heat pump/high temperature absorption refrigeration all-in-one 8; All-in-one condenser 81; All-in-one evaporimeter 82; All-in-one generator 83; All-in-one absorber 84; Intermediate Heat Exchanger 9; Regenerator 10; Domestic hot-water's heat exchanger 11; Full heat drives independent damping Climate Control Module 20; Humidity control device 21; Surface cooler 22; Blower fan 23; Indoor air outlet 24; Dry type air conditioning terminal 25; Booster pump P1; Once net circulating pump P2; Valve F1; Valve F2; Condenser cooling water outlet conduit A; Condenser cooling water inlet channel B; Air conditioning cooling water or heating water water return pipeline C; Air conditioning cooling water or heating water water supply line D; Domestic hot-water's water supply line E; Domestic hot-water's water return pipeline F; Indoor exhaust wind air outlet G; Outdoor new wind air inlet H; Room conditioning zone N.
The specific embodiment
A kind of regional thermoelectric cold associating energy resource system accompanying drawings based on absorption heat exchange of the utility model is following;
A kind of regional thermoelectric cold associating energy resource system of the utility model design based on absorption heat exchange, as shown in Figure 1, this system comprises four equipment components, and is formed by connecting the energy transmission and distribution network that the pipeline that has various water pumps and valve constitutes; This four equipment component is respectively: be arranged on being used to generate electricity and reclaiming subsystem II with the steam turbine in thermal power plant power generation cycle subsystem I of heat supply, the absorption exhaust steam residual heat that utilizes waste heat to improve heat supply and generating efficiency that is arranged on the steam power plant initial station, be arranged on the absorption heat exchange station/energy centre III in secondary net thermal substation and the cold supply station and be arranged on the distributing that offers heat supply/air conditioner user or the half centralized air-conditioning hot water subsystem IV of user Architectural Services Department of steam power plant; Wherein, said steam turbine in thermal power plant power generation cycle subsystem I mainly is made up of steam turbine 1, generator 2, steam boiler 3, boiler water-suppling heater group 4, air cooling or 5 of water-cooled condensers; Said absorption exhaust steam residual heat reclaims subsystem II and comprises that mainly the absorption exhaust steam residual heat that is made up of evaporimeter 61, condenser 62, absorber 63, generator 64 reclaims heat pump 6 and initial station vapor-water heat exchanger 7; Said absorption heat exchange station/energy centre III mainly comprises the absorption heat pump/high temperature absorption refrigeration all-in-one 8 that is made up of all-in-one condenser 81, all-in-one evaporimeter 82, all-in-one generator 83, all-in-one absorber 84, and Intermediate Heat Exchanger 9, regenerator 10, domestic hot-water's heat exchanger 11; Said distributing or half centralized air-conditioning hot water subsystem IV comprise that mainly the full heat that is made up of humidity control device 21, surface cooler 22, blower fan 23 drives independent damping air-conditioning unit 20; The annexation of each equipment is:
The middle pressure of said steam turbine 1 is drawn gas to export simultaneously and is linked to each other with the high temperature side import that absorption exhaust steam residual heat reclaims the generator 64 of heat pump 6 with initial station vapor-water heat exchanger 7, and the exhaust steam outlet of steam turbine 1 links to each other with the exhaust steam side-entrance of air cooling or water-cooled condenser 5 and the heat source side import of the evaporimeter 61 of absorption exhaust steam residual heat recovery heat pump 6 simultaneously; The heat source side outlet that the condensate outlet and the absorption exhaust steam residual heat of air cooling or water-cooled condenser 5 reclaims the evaporimeter 61 of heat pump 6 links to each other after booster pump P1 links to each other with the cold side import that absorption exhaust steam residual heat reclaims the absorber 63 of heat pump 6; And behind valve F1, link to each other with the low temperature import of boiler water-suppling heater group 4 of cold side outlet and steam boiler 3 that absorption exhaust steam residual heat reclaims the condenser 62 of heat pump 6; The high temperature side import of generator 64 also links to each other with the high temperature side import of initial station vapor-water heat exchanger 7; The outlet of generator 64 links to each other with boiler water-suppling heater group 4 with the high temperature side outlet of initial station vapor-water heat exchanger 7; The cold side outlet of condenser 62 also links to each other with the once net backwater import 71 of initial station vapor-water heat exchanger 7; The backwater import 71 of once netting of initial station vapor-water heat exchanger 7 also links to each other with the cold side import of absorber 63 through valve F2; The once net of initial station vapor-water heat exchanger 7 supplies water 72 by once netting the all-in-one generator 83 that circulating pump P2 sends into absorption heat pump/high temperature absorption refrigeration all-in-one 8; And process Intermediate Heat Exchanger 9 links to each other with the heat source side import of all-in-one evaporimeter 82 with regenerator 10 and domestic hot-water's heat exchanger 11 backs; Or directly link to each other with the heat source side import of all-in-one evaporimeter 82 through regenerator 10 and domestic hot-water's heat exchanger 11 backs; The heat source side outlet of all-in-one evaporimeter 82 links to each other with once net backwater 71, the surface cooler 22 of the independent damping air-conditioning unit 20 of full heat driving and user's the dry type air conditioning terminal 25 of initial station vapor-water heat exchanger 7 respectively; The 84 cold side imports of all-in-one absorber link to each other with user's air conditioning cooling water or heating water water supply line D; The outlet of all-in-one condenser 81 cold side links to each other with user's air conditioning cooling water or heating water water return pipeline C; Regenerator 10 regeneration hot water are sent into the humidity control device 21 that full heat drives independent damping air-conditioning unit 20, send into the indoor air outlet 24 of user through the air of damping temperature adjustment by blower fan 23.
The utility model comprises that also condenser cooling water outlet conduit A links to each other with the import of water-cooled cooling tower, the cooling inlet channel B (not shown) that links to each other with the import of water-cooled cooling tower.
The specific embodiment of each equipment of said system is explained respectively as follows:
It is multi-state lithium bromide absorption type heat pump unit that described absorption exhaust steam residual heat reclaims heat pump 6; The low-temperature heat source type that wherein gets into evaporimeter 61 comprises the cooling circulating water of exhaust steam in steam turbine and water-cooled condenser 5, the cooling water that gets into absorber 63 and condenser 62 comprise 20～35 ℃ of big temperature difference operating mode once net backwater, conventional temperature difference operating mode 45～70 ℃ once net backwater and 25～45 ℃ the air cooling or the condensate of water-cooled condenser 5.
Described absorption heat pump/high temperature absorption refrigeration all-in-one is winter operation reaches the duplexing condition type structure of the high temperature modification Absorption Refrigerator operating mode more than 7～20 ℃ in employing 80～90 ℃ of low-temperature water heatings drivings, chilled water outlets in first kind of absorption heat pump operating mode and summer operation a lithium bromide absorption type heat pump unit.
Described full heat drives independent damping air-conditioning unit 20 and adopts absorption solution damping structure or absorption type damping structure.Miscellaneous equipment all can adopt the conventional equipment of this area.
The method that adopts the above-mentioned regional thermoelectric cold associating energy resource system based on absorption heat exchange to realize that whole year operation is regulated comprises method, the method that the operation of summer cooling stage is regulated and method three parts of not regulating in the transition stage operation in above-mentioned two stages that the operation in winter heating stage is regulated, and specifically may further comprise the steps:
1) when getting into winter heating during the stage:
11) get into the ratio that absorption exhaust steam residual heat reclaims evaporimeter 61 with the air cooling or the water-cooled condenser 5 of heat pump 6 through the valve regulated exhaust steam in steam turbine; Regulate the ratio that pressing in the steam turbine draws gas gets into the generator 64 and the initial station vapor-water heat exchanger 7 of absorption exhaust steam residual heat recovery heat pump 6; Making the heat supply backwater all get into absorber 63 sends into condenser 62 and after being heated to 85～90 ℃ and once nets water main 72; Or make the heat supply backwater all get into absorber 63 to send into condenser 62 and after being heated to 110～130 ℃ and once net water main 72, or make the heat supply backwater all get into absorber 63 after vapor-water heat exchanger 7 continues to be heated to 110～130 ℃ at first stop, to send into again with condenser 62 and after being heated to 85～90 ℃ and once net water main 72;
12) when the once net supply water temperature after condenser 62 heating does not surpass 85～90 ℃; If any many absorption heat pump parallel operations; Then the exhaust steam condensate of the heat source side of evaporimeter 61 is sent into wherein absorber 63 that an absorption exhaust steam residual heat reclaims heat pump 6 with condenser 62 and be heated to and send into boiler water-suppling heater group 4 after being no more than 85～90 ℃; The exhaust steam condensate does not get into absorption exhaust steam residual heat recovery heat pump 6 and directly is heated to required boiler feed temperature (actual temp is by concrete default) by boiler water-suppling heater group 4 when the once net supply water temperature after condenser 62 heating surpasses 85～90 ℃, and once net heats through absorption heat pump/high temperature absorption refrigeration all-in-one 8 and 9 pairs of user side air-conditionings of Intermediate Heat Exchanger and hot-water heating system recirculated water after supplying water and sending into absorption heat exchange station/energy centre;
13) adjusting that also can once net supply and return water temperature and flow according to outdoor weather and each thermal substation user needs;
2) when getting into summer cooling during the stage:
21) get into the ratio that absorption exhaust steam residual heat reclaims evaporimeter 61 with the air cooling or the water-cooled condenser 5 of heat pump 6 through regulating exhaust steam in steam turbine; Regulate the ratio that pressing in the steam turbine draws gas gets into the generator 64 and the initial station vapor-water heat exchanger 7 of absorption exhaust steam residual heat recovery heat pump 6; The heat supply backwater all gets into absorber 63 and sends into once net water supply 72 with condenser 62 and after being heated to 85～90 ℃; Or the heat supply backwater all gets into absorber 63 and sends into once with condenser 62 and after being heated to 110～130 ℃ that net supplies water 72, or the heat supply backwater all gets into absorber 63 and after initial station vapor-water heat exchanger 7 continues to be heated to 110～130 ℃, sends into once net water supply 72 with condenser 62 and after being heated to 85～90 ℃ again;
22) when the once net supply water temperature after condenser 62 heating does not surpass 85～90 ℃; If any many absorption heat pump parallel operations; Then the exhaust steam condensate of the heat source side of evaporimeter 61 is sent into wherein absorber 63 that an absorption exhaust steam residual heat reclaims heat pump 6 with condenser 62 and be heated to and send into boiler water-suppling heater group 4 after being no more than 85～90 ℃; The exhaust steam condensate does not get into absorption exhaust steam residual heat recovery heat pump 6 and directly is heated to required boiler feed temperature by boiler water-suppling heater group 4 when the once net supply water temperature after condenser 62 heating surpasses 85～90 ℃; Once net is sent into the surface cooler 22 and dry type air conditioning terminal 25 that full heat drives independent damping air-conditioning unit 20 through driving the air conditioning water that absorption heat pump/high temperature absorption refrigeration all-in-one 8 is supplied 7～20 ℃ after supplying water and sending into absorption heat exchange station/energy centre; The humidity control device 21 that drives independent damping air-conditioning unit 20 through the full heat of regenerator 18 supply regenerated heat water-driven again carries out the air damping; Heat through 19 pairs of user side hot-water heating systems of domestic hot-water's heat exchanger recirculated water, and the adjusting of once netting supply and return water temperature and flow according to outdoor weather and each thermal substation user needs;
3) when transition stage not in above-mentioned two stages:
31) get into the ratio that absorption exhaust steam residual heat reclaims evaporimeter 61 with the air cooling or the water-cooled condenser 5 of heat pump 6 through the valve regulated exhaust steam in steam turbine; Regulate the ratio that pressing in the steam turbine draws gas gets into the generator 64 and the initial station vapor-water heat exchanger 7 of absorption exhaust steam residual heat recovery heat pump 6; Make the heat supply backwater all get into absorber 63 with condenser 62 and be heated to 85～90 ℃, directly send into and once net water main;
32) the exhaust steam condensate of the heat source side of evaporimeter 61 is sent into absorber 63 that absorption exhaust steam residual heat reclaims heat pump 6 with condenser 62 and be heated to and send into boiler water-suppling heater group 4 after being no more than 85～90 ℃; Once net heats through 19 pairs of user side hot-water heating systems of domestic hot-water's heat exchanger recirculated water after supplying water and sending into absorption heat exchange station/energy centre, and once nets the adjusting that supplies flow according to each thermal substation user needs.
Absorption exhaust steam residual heat reclaims heat pump 6 and in the whole year operation the heating load peak period, absorbs behind the exhaust steam residual heats by evaporimeter 61 and send into 4 continuation of boiler water-suppling heater group after being heated to the exhaust steam condensate of steam turbine 1 about 85～90 ℃ by absorber and condenser and heat and send into boiler.
The method that above-mentioned whole year operation is regulated can realize through programming; Combine simultaneously by weather conditions and user's air-conditioning requirement cause for by the time air conditioner load variation and the weather compensation technique of regulating in real time; Form corresponding whole therrmodynamic system whole year operation adjustment curve, the whole year operation adjusting that the utility model system and operation adjusting pattern thereof and computer, temperature, pressure and the flow sensor etc. that store this operation adjusting program are linked to each other with each power-equipment and valve member actuator and can realize the utility model system.
Claims (4)
1. regional thermoelectric cold associating energy resource system based on absorption heat exchange, this system comprises four equipment components, and is formed by connecting the energy transmission and distribution network that the pipeline that has various water pumps and valve constitutes; This four equipment component is respectively: be arranged on being used to generate electricity and reclaiming subsystem with the steam turbine in thermal power plant power generation cycle subsystem of heat supply, the absorption exhaust steam residual heat that utilizes waste heat to improve heat supply and generating efficiency that is arranged on the steam power plant initial station, be arranged on the absorption heat exchange station/energy centre in secondary net thermal substation and the cold supply station and be arranged on the distributing that offers heat supply/air conditioner user or the half centralized air-conditioning hot water subsystem of user Architectural Services Department of steam power plant; Wherein, said steam turbine in thermal power plant power generation cycle subsystem mainly is made up of steam turbine, generator, steam boiler, boiler water-suppling heater group, air cooling or water-cooled condenser; Said absorption exhaust steam residual heat reclaims subsystem and comprises that mainly the absorption exhaust steam residual heat that is made up of evaporimeter, condenser, absorber, generator reclaims heat pump and initial station vapor-water heat exchanger; Said absorption heat exchange station/energy centre mainly comprises the absorption heat pump/high temperature absorption refrigeration all-in-one that is made up of all-in-one condenser, all-in-one evaporimeter, all-in-one generator, all-in-one absorber, and Intermediate Heat Exchanger, regenerator, domestic hot-water's heat exchanger; Said distributing or half centralized air-conditioning hot water subsystem comprise that mainly the full heat that is made up of humidity control device, surface cooler, blower fan drives independent damping air-conditioning unit; The annexation of each equipment is:
The middle pressure of said steam turbine is drawn gas to export simultaneously and is linked to each other with the high temperature side import that absorption exhaust steam residual heat reclaims the generator of heat pump with the initial station vapor-water heat exchanger, and the exhaust steam outlet of steam turbine links to each other with the exhaust steam side-entrance of air cooling or water-cooled condenser and the heat source side import of the evaporimeter of absorption exhaust steam residual heat recovery heat pump simultaneously; The heat source side outlet that the condensate outlet and the absorption exhaust steam residual heat of air cooling or water-cooled condenser reclaims the evaporimeter of heat pump links to each other after booster pump links to each other with the cold side import that absorption exhaust steam residual heat reclaims the absorber of heat pump; And behind valve, link to each other with the low temperature import of boiler water-suppling heater group of cold side outlet and steam boiler that absorption exhaust steam residual heat reclaims the condenser of heat pump; The high temperature side import of generator also links to each other with the high temperature side import of initial station vapor-water heat exchanger; The outlet of generator links to each other with the boiler water-suppling heater group with the high temperature side outlet of initial station vapor-water heat exchanger; The cold side outlet of condenser also links to each other with the once net backwater import of initial station vapor-water heat exchanger; The backwater import of once netting of initial station vapor-water heat exchanger also links to each other with the cold side import of absorber through valve; The once net of initial station vapor-water heat exchanger supplies water and sends into the all-in-one generator of absorption heat pump/high temperature absorption refrigeration all-in-one by once netting circulating pump; And link to each other with the heat source side import of all-in-one evaporimeter through behind Intermediate Heat Exchanger and regenerator and the domestic hot-water's heat exchanger; Or directly through linking to each other with the heat source side import of all-in-one evaporimeter behind regenerator and the domestic hot-water's heat exchanger; The heat source side outlet of all-in-one evaporimeter links to each other with once net backwater, the surface cooler of the independent damping air-conditioning unit of full heat driving and user's the dry type air conditioning terminal of initial station vapor-water heat exchanger respectively; The import of all-in-one absorber cold side links to each other with user's air conditioning cooling water or heating water water supply line; The outlet of all-in-one condenser cold side links to each other with user's air conditioning cooling water or heating water water return pipeline, and regenerator regeneration hot water is sent into the humidity control device that full heat drives independent damping air-conditioning unit, sends into the indoor air outlet of user through the air of damping temperature adjustment by blower fan.
2. the regional thermoelectric cold associating energy resource system based on absorption heat exchange as claimed in claim 1; It is characterized in that; It is multi-state lithium bromide absorption type heat pump unit that described absorption exhaust steam residual heat reclaims heat pump; The low-temperature heat source type that wherein gets into evaporimeter comprises the cooling circulating water of exhaust steam in steam turbine and water-cooled condenser, the cooling water that gets into absorber and condenser comprise 20～35 ℃ of big temperature difference operating mode once net backwater, conventional temperature difference operating mode 45～70 ℃ once net backwater and 25～45 ℃ the air cooling or the condensate of water-cooled condenser 5.
3. the regional thermoelectric cold associating energy resource system based on absorption heat exchange as claimed in claim 1; It is characterized in that described absorption heat pump/high temperature absorption refrigeration all-in-one is winter operation reaches the duplexing condition type structure of the high temperature modification Absorption Refrigerator operating mode more than 7～20 ℃ in employing 80～90 ℃ of low-temperature water heatings drivings, chilled water outlets in first kind of absorption heat pump operating mode and summer operation a lithium bromide absorption type heat pump unit.
4. the regional thermoelectric cold associating energy resource system based on absorption heat exchange as claimed in claim 1 is characterized in that, described full heat drives independent damping air-conditioning unit and adopts absorption solution damping structure or absorption type damping structure.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011203233081U CN202209817U (en) | 2011-08-31 | 2011-08-31 | District cooling, heating and power combined energy system based on absorption heat exchange |
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| CN2011203233081U CN202209817U (en) | 2011-08-31 | 2011-08-31 | District cooling, heating and power combined energy system based on absorption heat exchange |
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| CN102331110A (en) * | 2011-08-31 | 2012-01-25 | 北京中科华誉能源技术发展有限责任公司 | Regional heating, cooling and power combined energy system and method based on absorption heat exchange |
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