CN102331110B - Regional heating, cooling and power combined energy system and method based on absorption heat exchange - Google Patents

Regional heating, cooling and power combined energy system and method based on absorption heat exchange Download PDF

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CN102331110B
CN102331110B CN2011102544798A CN201110254479A CN102331110B CN 102331110 B CN102331110 B CN 102331110B CN 2011102544798 A CN2011102544798 A CN 2011102544798A CN 201110254479 A CN201110254479 A CN 201110254479A CN 102331110 B CN102331110 B CN 102331110B
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water
heat
absorption
exhaust steam
net
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CN2011102544798A
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CN102331110A (en
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张茂勇
张军
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北京中科华誉能源技术发展有限责任公司
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    • 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

Abstract

The invention relates to a regional heating, cooling and power combined energy system and method based on absorption heat exchange. The system comprises four parts of equipment and is formed by connecting energy transmission and distribution networks formed by pipes with various water pumps and valves; the four parts of equipment are respectively a heat and power plant steam turbine power generation circulation sub system, an absorption dead steam afterheat recycling sub system, an absorption heat exchanging station/energy center and a distributed or semi-centralized air conditioner water heating sub system, wherein the heat and power plant steam turbine power generation circulation sub system is arranged on a thermal power plant and used for generating power and supplying heat; the absorption dead steam afterheat recycling sub system is arranged at an initial station of the thermal power plant and used for increasing the heat supplying and power generating efficiency by using the afterheat; the absorption heat exchanging station/energy center is arranged in a secondary network thermal substation and cold supply station; and the distributed or semi-centralized air conditioner water heating sub system is arranged at the user building and provided to the heat supply/air conditioner user. The method comprises three parts of operation regulation in a heating stage in winter, operation regulation in a cold supply stage in summer and operation regulation in a transitional stage beyond the two stages. According to the invention, the comprehensive energy utilization efficiency of a thermodynamic system can be effectively improved.

Description

Regional thermoelectric cold associating energy resource system and method thereof based on absorption heat exchange
Technical field
The invention belongs to thermoelectric cold comprehensive utilization of energy technical field, particularly a kind of regional thermoelectric cold associating energy resource system based on absorption heat exchange.
Background technology
The Major Systems form of at present Northern Part of China heating is: cogeneration of heat and power, district boiler room and dispersion heating respectively account for approximately 1/3, wherein the primary energy utilization ratio is the highest, emission reduction effect is best, economy the most rational cogeneration of heat and power apply the restriction that is subject to being difficult to expand on a large scale the factors such as heat supply network scale and heat capacity thereof, need badly and take better technology path and policy planning to be promoted.The main present situation of steam power plant's heat supply generating, user heating and cooling is: the primary fuels such as a large amount of coal of steam power plant burning, oil, gas, Generation Rate accounts for 20~25% of primary fuel thermal discharge in the winter time, approximately have 40~50% to be used for heat supply, approximately have 15~25% need to discharge into the atmosphere from cooling tower by condenser, summer, Generation Rate can reach 30~35%, a small amount of heat energy is sent to some hot user such as hotel and is used for producing domestic hot-water etc. by heat distribution pipe network, but most of heat is discharged into the atmosphere in vain.For the hot user of terminal, carry out heating by the thermal substation heat exchange winter, separately establishes summer such as a cover electricity refrigeration or absorption system etc. and solve the air-conditioning Cooling.Connect steam power plant's (and concentrating boiler room) and the terminal use's is thermal substation, be provided with large heat exchanger for generation of the circulation water for heating of desired parameters, the while need to arrange large pump so that power to be provided because supply backwater temperature difference is limited.
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 the Patents technology that heat supply and large temperature difference heat exchange significantly reduce a secondary net return water temperature, namely 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 20 ℃ of left and right from 60 ℃ of left and right at thermal substation, thereby greatly improve supply backwater temperature difference, can significantly reduce quantity of circulating water to reduce the water circulating pump power consumption when heating load is identical, perhaps significantly improve the defeated heat energy power of heat supply network to enlarge area of heat-supply service when quantity of circulating water is constant.Simultaneously, river hundred million academicians preside over and have developed the solution humidifying air conditioning mode, can utilize more low-grade heat-driven to carry out independent humidity control and indoor dry type end falling temperature technique.Above-mentioned every power-saving technology and product with great innovative significance is widely applied at present, and progressively obtains good benefit.
Simultaneously, the present inventor has developed respectively and has adopted absorption heat pump recovery exhaust steam in steam turbine or cooling-tower circulating water waste heat etc. to be used for the exhaust steam condensate water is heated to the boiler feedwater preheating technology of sending into again boiler after 85~90 ℃ after heaters heating at different levels, can save and draw gas for generating and effective boiler gross coal consumption rate that reduces; Developed simultaneously 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.
But, how from carrying out the angle of therrmodynamic system OVERALL OPTIMIZA-TION DESIGN FOR, above-mentioned every technology and the existing traditional heat utilization technology with novelty of more effective employing, realize adopting cheap heat energy directly to drive heat supply, air-conditioning, to obtain maximum energy-saving environmental benefit and economic and social benefits, still need inquire into and have globality and practical solution thinking, integrated system and an Optimization Design about heat supply and cooling.
Summary of the invention
the objective of the invention is for overcoming the weak point of prior art, design a kind of regional thermoelectric cold associating energy resource system and method thereof based on absorption heat exchange, this system and method is with steam power plant, thermal substation and hot user do as a whole, the fuel that it is related, steam, electric power, circulating hot water, heating, the domestic hot-water, the production of energy of cooling etc., supply, transmission ﹠ distribution, use and discharge and be integrated into a heat supply of adopting heat energy directly to drive, the air-conditioning new system, to reach the total optimization of Integrated Energy cascade utilization and economy thereof, the method is adjusted relevant design and operational factor targetedly, the highest to reach the energy resource system comprehensive utilization benefit.
a kind of regional thermoelectric cold associating energy resource system based on absorption heat exchange that the present invention proposes, this system comprises four equipment components, and is formed by connecting by the energy transmission and distribution network that the pipeline with various water pumps and valve consists of, this four equipment component is respectively: the steam turbine in thermal power plant power generation cycle subsystem that is used for generating and heat supply that is arranged on steam power plant, 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 reclaims subsystem, be arranged on absorption heat exchange station/energy centre and the distributing that offers heat supply/air conditioner user or the half centralized air-conditioning hot water subsystem that are arranged on user Architectural Services Department in secondary network thermal substation and cold supply station, wherein, described steam turbine in thermal power plant power generation cycle subsystem is mainly by steam turbine, generator, steam boiler, the boiler water-suppling heater group, air cooling or water-cooled condenser form, described absorption exhaust steam residual heat reclaims subsystem and comprises that mainly the absorption exhaust steam residual heat that is made of evaporimeter, condenser, absorber, generator reclaims heat pump and initial station vapor-water heat exchanger, described absorption heat exchange station/energy centre mainly comprises the absorption heat pump that is made of all-in-one condenser, all-in-one evaporimeter, all-in-one generator, all-in-one absorber/high temperature absorption refrigeration all-in-one, and Intermediate Heat Exchanger, regenerator, domestic hot-water's heat exchanger, described distributing or half centralized air-conditioning hot water subsystem comprise that mainly the full heat that is made of humidity control device, surface cooler, blower fan drives independent damping air-conditioning unit, the annexation of each equipment is:
The middle pressure of described steam turbine is drawn gas to export simultaneously and is connected 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 is connected 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 of the evaporimeter that the condensate water outlet of air cooling or water-cooled condenser and absorption exhaust steam residual heat reclaim heat pump is connected and is connected by the cold side import of booster pump with the absorber of absorption exhaust steam residual heat recovery heat pump, and be connected with low temperature import that absorption exhaust steam residual heat reclaims the boiler water-suppling heater group of the cold side outlet of condenser of heat pump and steam boiler after valve, the high temperature side import of generator also is connected with the high temperature side import of initial station vapor-water heat exchanger, the outlet of generator is connected 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 is connected with a secondary net backwater import of initial station vapor-water heat exchanger, one secondary net backwater import of initial station vapor-water heat exchanger also is connected with the cold side import of absorber by valve, one secondary net of initial station vapor-water heat exchanger supplies water and is sent into the all-in-one generator of absorption heat pump/high temperature absorption refrigeration all-in-one by a secondary net circulating pump, and be connected with the heat source side import of all-in-one evaporimeter through after Intermediate Heat Exchanger and regenerator and domestic hot-water's heat exchanger, or directly through being connected with the heat source side import of all-in-one evaporimeter after regenerator and domestic hot-water's heat exchanger, the outlet of the heat source side of all-in-one evaporimeter respectively with a secondary net backwater of initial station vapor-water heat exchanger, full heat drives the surface cooler of independent damping air-conditioning unit and user's dry type air conditioning terminal is connected, the import of all-in-one absorber cold side is connected with user's air conditioning cooling water or heating water water supply line, the outlet of all-in-one condenser cold side is connected with user's air conditioning cooling water or heating water water return pipeline, regenerator regeneration hot water is sent into the humidity control device that full heat drives independent damping air-conditioning unit, air through the damping temperature adjustment is sent into the indoor air outlet of user by blower fan.
Adopt said system to realize the method that whole year operation is regulated, it is characterized in that, comprise that operation adjusting, the summer cooling stage running in winter heating stage regulated and do not regulate three parts in the transition stage operation in above-mentioned two stages, specifically comprise the following steps:
1) when entering winter heating during the stage:
11) enter absorption exhaust steam residual heat by the valve regulated exhaust steam in steam turbine and reclaim the evaporimeter of heat pump and the ratio of air cooling or water-cooled condenser, regulate the ratio that pressing in steam turbine draws gas enters generator and the initial station vapor-water heat exchanger of absorption exhaust steam residual heat recovery heat pump, make the heat supply backwater all enter absorber and condenser and be heated to 85~90 ℃ after send into a secondary net water main, or make the heat supply backwater all enter absorber and condenser and be heated to 110~130 ℃ after send into a secondary net water main, or make the heat supply backwater all enter absorber and condenser and be heated to 85~90 ℃ after send into again a secondary net water main after the initial station vapor-water heat exchanger continues to be heated to 110~130 ℃,
12) when the secondary net supply water temperature after the condenser heating does not surpass 85~90 ℃, if any many absorption heat pump parallel operations, the exhaust steam condensate water of the heat source side of evaporimeter being sent into wherein an absorption exhaust steam residual heat reclaims absorber and the condenser of heat pump and is heated to and send into the boiler water-suppling heater group after being no more than 85~90 ℃, the exhaust steam condensate water does not enter absorption exhaust steam residual heat recovery heat pump and directly is heated to required boiler feed temperature by the boiler water-suppling heater group when the secondary net supply water temperature after the condenser heating surpasses 85~90 ℃, one secondary net heats user's side air-conditioning and hot-water heating system recirculated water by absorption heat pump/high temperature absorption refrigeration all-in-one and Intermediate Heat Exchanger after supplying water and sending into absorption heat exchange station/energy centre,
13) also can carry out the adjusting of a secondary net supply and return water temperature and flow according to outdoor weather and each thermal substation user needs;
2) when entering summer cooling during the stage:
21) enter the evaporimeter of absorption exhaust steam residual heat recovery heat pump and the ratio of air cooling or water-cooled condenser by regulating exhaust steam in steam turbine, regulate the ratio that pressing in steam turbine draws gas enters generator and the initial station vapor-water heat exchanger of absorption exhaust steam residual heat recovery heat pump, sending into a secondary net after the heat supply backwater all enters absorber and condenser and is heated to 85~90 ℃ supplies water, or the heat supply backwater is sent into a secondary net after all entering absorber and condenser and being heated to 110~130 ℃ and is supplied water, or the heat supply backwater is sent into a secondary net after all entering absorber and condenser and being heated to 85~90 ℃ again and is supplied water after the initial station vapor-water heat exchanger continues to be heated to 110~130 ℃,
22) when the secondary net supply water temperature after condenser 62 heating does not surpass 85~90 ℃, if any many absorption heat pump parallel operations, the exhaust steam condensate water of the heat source side of evaporimeter 61 being sent into wherein an absorption exhaust steam residual heat reclaims absorber and the condenser of heat pump and is heated to and send into the boiler water-suppling heater group after being no more than 85~90 ℃, the exhaust steam condensate water does not enter absorption exhaust steam residual heat recovery heat pump and directly is heated to required boiler feed temperature by the boiler water-suppling heater group when the secondary net supply water temperature after the condenser heating surpasses 85~90 ℃, one secondary net sends into by the air conditioning water that drives absorption heat pump/7~20 ℃ of high temperature absorption refrigeration all-in-one supplies surface cooler and the dry type air conditioning terminal that full heat drives independent damping air-conditioning unit after supplying water and sending into absorption heat exchange station/energy centre, supply the regenerated heat water-driven humidity control device that full heat drives independent damping air-conditioning unit by regenerator again and carry out air humidity adjusting, by domestic hot-water's heat exchanger, user's side hot-water heating system recirculated water is heated, and carry out the adjusting of a secondary net supply and return water temperature and flow according to outdoor weather and each thermal substation user needs,
3) when the transition stage in above-mentioned two stages not:
31) enter absorption exhaust steam residual heat by the valve regulated exhaust steam in steam turbine and reclaim the evaporimeter of heat pump and the ratio of air cooling or water-cooled condenser, regulate the ratio that pressing in steam turbine draws gas enters generator and the initial station vapor-water heat exchanger of absorption exhaust steam residual heat recovery heat pump, make the heat supply backwater all enter absorber and condenser and be heated to 85~90 ℃, directly sending into a secondary net water main;
32) the exhaust steam condensate water of the heat source side of evaporimeter being sent into absorption exhaust steam residual heat reclaims absorption and the condenser 62 of heat pump and is heated to and send into the boiler water-suppling heater group after being no more than 85~90 ℃, one secondary net heats user's side hot-water heating system recirculated water by domestic hot-water's heat exchanger after supplying water and sending into absorption heat exchange station/energy centre, and carries out a secondary net for the adjusting of flow according to each thermal substation user needs.
Absorption exhaust steam residual heat reclaims to be sent into the continuation of boiler water-suppling heater group and heats and send into boiler heat pump is heated to 85~90 ℃ of left and right by absorber and condenser with the exhaust steam condensate water of steam turbine except absorb exhaust steam residual heat by evaporimeter in the whole year operation in heating load peak period after after.
Characteristics of the present invention and beneficial effect:
this integrated system has been used Tsing-Hua University river hundred million academicians, Fu Lin professor and designer's of the present invention up-to-date patented technology achievement, adopt absorption heat pump to reclaim the recirculated cooling water heat as steam power plant, thermal substation or thermic load arrange absorption heat pump to reduce the heat supply network recovered temperature, the solution humidifying air-conditioning, multiple special absorptive formula heat pump and system integration technology etc., its innovative point has been take abovementioned technology as Foundation to be applied to the integrated technology system of whole thermoelectric cold cogeneration therrmodynamic system, 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 is for bearing annual heat supply, cooling needs, and be 200620012010.8 according to the patent No., 200720310540.5 Deng about energy saving building associating energy resource system Optimization Design, whole therrmodynamic system is carried out systems organization and optimal design.
The whole year operation that the present invention is based on the regional thermoelectric cold associating energy resource system of absorption heat exchange is regulated all and can be carried out real time execution control by thermoelectric cold cogeneration weather compensation and intelligence control system based on heat supply and operation of air conditioner under annual weather conditions, this system can be according to outdoor climate and indoor user service requirement and the parameter variation of therrmodynamic system operation, adjust in real time in the system that comprises the power-equipments such as steam turbine, absorption heat pump each equipment executing agency, regulate with the maximum energy-saving of realizing annual different times heating, cooling and supplying hot water operating mode and variation thereof.
The present invention is not the innovation of specific product aspect, and be intended to for proposing complete Practical solution by steam power plant on the aspect of hot user's therrmodynamic system integral body, 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 to be optimized design to energy resource system.This system realized reclaiming steam power plant's condensation heat with improve steam power plant's efficiency of energy utilization 15~25%, increase therrmodynamic system area of heat-supply service 30~50%, reduce therrmodynamic system circulating water flow and pump consumption 30~40%, adopt cheap steam power plant's low grade heat energy to drive the purpose that solution humidifying air-conditioning unit and high temperature Absorption Refrigerator are born user's air conditioning function summer, farthest improve the annual whole comprehensive utilization of energy benefit of system, have guidance value.
Description of drawings
Fig. 1 is overall system composition frame chart of the present invention.
In Fig. 1, each unit number is as follows:
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, one secondary net backwater 71, one secondary 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, one secondary 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 present invention is as follows;
a kind of regional thermoelectric cold associating energy resource system based on absorption heat exchange of the present invention's design, as shown in Figure 1, this system comprises four equipment components, and is formed by connecting by the energy transmission and distribution network that the pipeline with various water pumps and valve consists of, this four equipment component is respectively: the steam turbine in thermal power plant power generation cycle subsystem I that is used for generating and heat supply that is arranged on steam power plant, 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 reclaims subsystem II, be arranged on absorption heat exchange station in secondary network thermal substation and cold supply station/energy centre III 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, wherein, described steam turbine in thermal power plant power generation cycle subsystem I is mainly by steam turbine 1, generator 2, steam boiler 3, boiler water-suppling heater group 4, air cooling or water-cooled condenser 5 form, described absorption exhaust steam residual heat reclaims subsystem II and comprises that mainly the absorption exhaust steam residual heat that is made of evaporimeter 61, condenser 62, absorber 63, generator 64 reclaims heat pump 6 and initial station vapor-water heat exchanger 7, described absorption heat exchange station/energy centre III mainly comprises the absorption heat pump that is made of all-in-one condenser 81, all-in-one evaporimeter 82, all-in-one generator 83, all-in-one absorber 84/high temperature absorption refrigeration all-in-one 8, and Intermediate Heat Exchanger 9, regenerator 10, domestic hot-water's heat exchanger 11, described distributing or half centralized air-conditioning hot water subsystem IV comprise that mainly the full heat that is made 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 described steam turbine 1 is drawn gas to export simultaneously and is connected 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 is connected 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 of the evaporimeter 61 that the condensate water outlet of air cooling or water-cooled condenser 5 and absorption exhaust steam residual heat reclaim heat pump 6 is connected and is connected with the cold side import of the absorber 63 of absorption exhaust steam residual heat recovery heat pump 6 by booster pump P1, and be connected with low temperature import that absorption exhaust steam residual heat reclaims the boiler water-suppling heater group 4 of the cold side outlet of condenser 62 of heat pump 6 and steam boiler 3 after valve F1, the high temperature side import of generator 64 also is connected with the high temperature side import of initial station vapor-water heat exchanger 7, the outlet of generator 64 is connected 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 is connected with a secondary net backwater import 71 of initial station vapor-water heat exchanger 7, one secondary net backwater import 71 of initial station vapor-water heat exchanger 7 also is connected with the cold side import of absorber 63 by valve F2, the all-in-one generator 83 of absorption heat pump/high temperature absorption refrigeration all-in-one 8 is sent in one secondary net water supply 72 of initial station vapor-water heat exchanger 7 by a secondary net circulating pump P2, and be connected with the heat source side import of all-in-one evaporimeter 82 through after Intermediate Heat Exchanger 9 and regenerator 10 and domestic hot-water's heat exchanger 11, or directly through being connected with the heat source side import of all-in-one evaporimeter 82 after regenerator 10 and domestic hot-water's heat exchanger 11, the outlet of the heat source side of all-in-one evaporimeter 82 respectively with a secondary net backwater 71 of initial station vapor-water heat exchanger 7, full heat drives the surface cooler 22 of independent damping air-conditioning unit 20 and user's dry type air conditioning terminal 25 is connected, the 84 cold side imports of all-in-one absorber are connected with user's air conditioning cooling water or heating water water supply line D, the 81 cold side outlets of all-in-one condenser are connected 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, air through the damping temperature adjustment is sent into the indoor air outlet 24 of user by blower fan 23.
The present invention comprises that also condenser cooling water outlet conduit A is connected with the import of cooling by water tower, the cooling inlet channel B (not shown) that is connected with the import of cooling by water tower.
The specific embodiment of each equipment of said system is respectively described below:
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 enters evaporimeter 61 comprises the cooling circulating water of exhaust steam in steam turbine and water-cooled condenser 5, and the cooling water that enters absorber 63 and condenser 62 comprises a secondary net backwater of 45~70 ℃ and the air cooling of 25~45 ℃ or the condensate water of water-cooled condenser 5 of a secondary net backwater of 20~35 ℃ of large temperature difference operating mode, conventional temperature difference operating mode.
Described absorption heat pump/high temperature absorption refrigeration all-in-one is that winter operation reaches the lithium bromide absorption type heat pump unit of the Double-working-condition type structure of the high temperature modification Absorption Refrigerator operating mode more than 7~20 ℃ in the first absorption heat pump operating mode and summer operation in employing 80~90 ℃ of low-temperature water heatings drivings, chilled water outlets.
Described full heat drives independent damping air-conditioning unit 20 and adopts absorption solution humidifying 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 summer cooling stage running 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 comprises the following steps:
1) when entering winter heating during the stage:
11) enter by the valve regulated exhaust steam in steam turbine ratio that absorption exhaust steam residual heat reclaims evaporimeter 61 with air cooling or the water-cooled condenser 5 of heat pump 6, regulate the ratio that pressing in steam turbine draws gas enters 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 enter absorber 63 and condenser 62 and be heated to 85~90 ℃ after send into a secondary net water main 72, or make the heat supply backwater all enter absorber 63 and condenser 62 and be heated to 110~130 ℃ after send into a secondary net water main 72, or make the heat supply backwater all enter absorber 63 and condenser 62 and be heated to 85~90 ℃ after send into again a secondary net water main 72 after initial station vapor-water heat exchanger 7 continues to be heated to 110~130 ℃,
12) when the secondary net supply water temperature after condenser 62 heating does not surpass 85~90 ℃, if any many absorption heat pump parallel operations, the exhaust steam condensate water of the heat source side of evaporimeter 61 being sent into wherein an absorption exhaust steam residual heat reclaims absorber 63 and the condenser 62 of heat pump 6 and is heated to and send into boiler water-suppling heater group 4 after being no more than 85~90 ℃, the exhaust steam condensate water does not enter 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 secondary net supply water temperature after condenser 62 heating surpasses 85~90 ℃, one secondary net supplies water to send into after absorption heat exchange station/energy centre by absorption heat pump/high temperature absorption refrigeration all-in-one 8 and 9 pairs of user's side air-conditionings of Intermediate Heat Exchanger and hot-water heating system recirculated water and heats,
13) also can carry out the adjusting of a secondary net supply and return water temperature and flow according to outdoor weather and each thermal substation user needs;
2) when entering summer cooling during the stage:
21) enter by regulating exhaust steam in steam turbine the ratio that absorption exhaust steam residual heat reclaims evaporimeter 61 with air cooling or the water-cooled condenser 5 of heat pump 6, regulate the ratio that pressing in steam turbine draws gas enters generator 64 and the initial station vapor-water heat exchanger 7 of absorption exhaust steam residual heat recovery heat pump 6, send into a secondary net after the heat supply backwater all enters absorber 63 and condenser 62 and is heated to 85~90 ℃ and supply water 72, or the heat supply backwater is sent into a secondary net after all entering absorber 63 and condenser 62 and being heated to 110~130 ℃ and is supplied water 72, or the heat supply backwater is sent into a secondary net after all entering absorber 63 and condenser 62 and being heated to 85~90 ℃ again and is supplied water 72 after initial station vapor-water heat exchanger 7 continues to be heated to 110~130 ℃,
22) when the secondary net supply water temperature after condenser 62 heating does not surpass 85~90 ℃, if any many absorption heat pump parallel operations, the exhaust steam condensate water of the heat source side of evaporimeter 61 being sent into wherein an absorption exhaust steam residual heat reclaims absorber 63 and the condenser 62 of heat pump 6 and is heated to and send into boiler water-suppling heater group 4 after being no more than 85~90 ℃, the exhaust steam condensate water does not enter 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 secondary net supply water temperature after condenser 62 heating surpasses 85~90 ℃, one secondary net sends into by the air conditioning water that drives absorption heat pump/7~20 ℃ of high temperature absorption refrigeration all-in-one 8 supplies surface cooler 22 and the dry type air conditioning terminal 25 that full heat drives independent damping air-conditioning unit 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 by the regenerator 18 full heat of supply regenerated heat water-driven again carries out air humidity adjusting, heat by 19 pairs of user's side hot-water heating system recirculated waters of domestic hot-water's heat exchanger, and carry out the adjusting of a secondary net supply and return water temperature and flow according to outdoor weather and each thermal substation user needs,
3) when the transition stage in above-mentioned two stages not:
31) enter by the valve regulated exhaust steam in steam turbine ratio that absorption exhaust steam residual heat reclaims evaporimeter 61 with air cooling or the water-cooled condenser 5 of heat pump 6, regulate the ratio that pressing in steam turbine draws gas enters 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 enter absorber 63 and condenser 62 and be heated to 85~90 ℃, directly send into a secondary net water main;
32) the exhaust steam condensate water of the heat source side of evaporimeter 61 being sent into absorption exhaust steam residual heat reclaims absorber 63 and the condenser 62 of heat pump 6 and is heated to and send into boiler water-suppling heater group 4 after being no more than 85~90 ℃, one secondary net heats by 19 pairs of user's side hot-water heating system recirculated waters of domestic hot-water's heat exchanger after supplying water and sending into absorption heat exchange station/energy centre, and carries out a secondary net for the adjusting of flow according to each thermal substation user needs.
Absorption exhaust steam residual heat reclaims to be sent into 4 continuation of boiler water-suppling heater group and heats and send into boiler heat pump 6 is heated to 85~90 ℃ of left and right by absorber and condenser with the exhaust steam condensate water of steam turbine 1 except absorb exhaust steam residual heats by evaporimeter 61 in the whole year operation in heating load peak period after after.
The method that above-mentioned whole year operation is regulated can realize by programming, simultaneously in conjunction with caused by weather conditions and user's air-conditioning requirement for by the time variation of air conditioner load and the weather compensation technology of regulating in real time, form corresponding whole therrmodynamic system whole year operation adjustment curve, the whole year operation adjusting that system of the present invention and operation adjusting pattern thereof and computer, temperature, pressure and the flow sensor etc. that store this operation adjusting program are connected with each power-equipment and valve member actuator and can realize system of the present invention.

Claims (5)

1. the regional thermoelectric cold based on absorption heat exchange is united energy resource system, and this system comprises four equipment components, and is formed by connecting by the energy transmission and distribution network that the pipeline with various water pumps and valve consists of, this four equipment component is respectively: the steam turbine in thermal power plant power generation cycle subsystem that is used for generating and heat supply that is arranged on steam power plant, 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 reclaims subsystem, be arranged on absorption heat exchange station/energy centre and the distributing that offers heat supply/air conditioner user or the half centralized air-conditioning hot water subsystem that are arranged on user Architectural Services Department in secondary network thermal substation and cold supply station, wherein, described steam turbine in thermal power plant power generation cycle subsystem is mainly by steam turbine, generator, steam boiler, the boiler water-suppling heater group, air cooling or water-cooled condenser form, described absorption exhaust steam residual heat reclaims subsystem and comprises that mainly the absorption exhaust steam residual heat that is made of evaporimeter, condenser, absorber, generator reclaims heat pump and initial station vapor-water heat exchanger, described absorption heat exchange station/energy centre mainly comprises the absorption heat pump that is made of all-in-one condenser, all-in-one evaporimeter, all-in-one generator, all-in-one absorber/high temperature absorption refrigeration all-in-one, and Intermediate Heat Exchanger, regenerator, domestic hot-water's heat exchanger, described distributing or half centralized air-conditioning hot water subsystem comprise that mainly the full heat that is made of humidity control device, surface cooler, blower fan drives independent damping air-conditioning unit, the annexation of each equipment is:
the middle pressure of described steam turbine is drawn gas to export simultaneously and is connected 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 is connected 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 of the evaporimeter that the condensate water outlet of air cooling or water-cooled condenser and absorption exhaust steam residual heat reclaim heat pump is connected and is connected by the cold side import of booster pump with the absorber of absorption exhaust steam residual heat recovery heat pump, the outlet of the condensate water of air cooling or water-cooled condenser also is connected with low temperature import that absorption exhaust steam residual heat reclaims the boiler water-suppling heater group of the cold side outlet of condenser of heat pump and steam boiler after valve, the high temperature side import of generator also is connected with the high temperature side import of initial station vapor-water heat exchanger, the high temperature side outlet of generator is connected with the boiler water-suppling heater group with the high temperature side outlet of initial station vapor-water heat exchanger, the cold side of condenser outlet simultaneously also is connected with a secondary net backwater import of initial station vapor-water heat exchanger, one secondary net backwater import of initial station vapor-water heat exchanger also is connected with the cold side import of absorber by valve, one secondary net of initial station vapor-water heat exchanger supplies water and is sent into the all-in-one generator of absorption heat pump/high temperature absorption refrigeration all-in-one by a secondary net circulating pump, then one the tunnel through Intermediate Heat Exchanger, one the tunnel through being connected with the heat source side import of all-in-one evaporimeter after regenerator and domestic hot-water's heat exchanger, or directly through being connected with the heat source side import of all-in-one evaporimeter after regenerator and domestic hot-water's heat exchanger, the outlet of the heat source side of all-in-one evaporimeter respectively with a secondary net backwater of initial station vapor-water heat exchanger, full heat drives the surface cooler of independent damping air-conditioning unit and user's dry type air conditioning terminal is connected, the import of all-in-one absorber cold side is connected with user's air conditioning cooling water or heating water water return pipeline, the outlet of all-in-one condenser cold side is connected with user's air conditioning cooling water or heating water water supply line, regenerator regeneration hot water is sent into the humidity control device that full heat drives independent damping air-conditioning unit, air through the damping temperature adjustment is sent into the indoor air outlet of user by blower fan.
2. the regional thermoelectric cold based on absorption heat exchange as claimed in claim 1 is united energy resource system, 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 enters evaporimeter comprises the cooling circulating water of exhaust steam in steam turbine and water-cooled condenser, and the cooling water that enters absorber and condenser comprises a secondary net backwater of 45~70 ℃ and the air cooling of 25~45 ℃ or the condensate water of water-cooled condenser (5) of a secondary net backwater of 20~35 ℃ of large temperature difference operating mode, conventional temperature difference operating mode.
3. the regional thermoelectric cold based on absorption heat exchange as claimed in claim 1 is united energy resource system, it is characterized in that, described absorption heat pump/high temperature absorption refrigeration all-in-one is winter operation in the first absorption heat pump operating mode and the summer operation lithium bromide absorption type heat pump unit of Double-working-condition type structure that 80~90 ℃ of low-temperature water heatings drive in adopting, chilled water outlets reach the high temperature modification Absorption Refrigerator operating mode of 7~20 ℃.
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 humidifying structure or absorption type damping structure.
5. adopt as claimed in claim 1 and realize based on the regional thermoelectric cold associating energy resource system of absorption heat exchange the method that whole year operation is regulated, it is characterized in that, the operation adjusting, the summer cooling stage running that comprise the winter heating stage are regulated and do not regulate three parts in the transition stage operation in above-mentioned two stages, specifically comprise the following steps:
1) when entering winter heating during the stage:
11) enter absorption exhaust steam residual heat by the valve regulated exhaust steam in steam turbine and reclaim the evaporimeter of heat pump and the ratio of air cooling or water-cooled condenser, regulate the ratio that pressing in steam turbine draws gas enters generator and the initial station vapor-water heat exchanger of absorption exhaust steam residual heat recovery heat pump, make a secondary net backwater all enter absorber and condenser and be heated to 85~90 ℃ after send into a secondary net water main, or make a secondary net backwater all enter absorber and condenser and be heated to 110~130 ℃ after send into a secondary net water main, or make a secondary net backwater all enter absorber and condenser and be heated to 85~90 ℃ after send into again a secondary net water main after the initial station vapor-water heat exchanger continues to be heated to 110~130 ℃,
12) if any many absorption heat pump parallel operations, when the secondary net after condenser heating supplies water temperature required when surpassing 85 ℃, the exhaust steam condensate water of the heat source side of evaporimeter outlet being sent into wherein an absorption exhaust steam residual heat reclaims absorber and the condenser of heat pump and is heated to and send into the boiler water-suppling heater group after being no more than 90 ℃, when the secondary net after condenser heating supply water temperature required when surpassing 85 ℃ the exhaust steam condensate water do not enter absorption exhaust steam residual heat and reclaim heat pump and directly be heated to required boiler feed temperature by the boiler water-suppling heater group, one secondary net heats heating water water supply/heating water backwater by absorption heat pump/high temperature absorption refrigeration all-in-one and Intermediate Heat Exchanger after supplying water and sending into absorption heat exchange station/energy centre,
13) also can carry out the adjusting of a secondary net supply and return water temperature and flow according to outdoor weather and each thermal substation user needs;
2) when entering summer cooling during the stage:
21) enter the evaporimeter of absorption exhaust steam residual heat recovery heat pump and the ratio of air cooling or water-cooled condenser by regulating exhaust steam in steam turbine, regulate the ratio that pressing in steam turbine draws gas enters generator and the initial station vapor-water heat exchanger of absorption exhaust steam residual heat recovery heat pump, sending into a secondary net after one secondary net backwater all enters absorber and condenser and is heated to 85~90 ℃ supplies water, or one the secondary net backwater send into a secondary net after all entering absorber and condenser and being heated to 110~130 ℃ and supply water, or one the secondary net backwater send into again a secondary net after all entering absorber and condenser and being heated to 85~90 ℃ supply water after the initial station vapor-water heat exchanger continue to be heated to 110~130 ℃,
22) if any many absorption heat pump parallel operations, when the secondary net after condenser (62) heating supplies water temperature required when surpassing 85 ℃, the exhaust steam condensate water of the heat source side of evaporimeter (61) outlet being sent into wherein an absorption exhaust steam residual heat reclaims absorber and the condenser of heat pump and is heated to and send into the boiler water-suppling heater group after being no more than 90 ℃, when the secondary net after condenser heating supply water temperature required when surpassing 85 ℃ the exhaust steam condensate water do not enter absorption exhaust steam residual heat and reclaim heat pump and directly be heated to required boiler feed temperature by the boiler water-suppling heater group, one secondary net sends into by the air conditioning water that drives absorption heat pump/7~20 ℃ of high temperature absorption refrigeration all-in-one supplies surface cooler and the dry type air conditioning terminal that full heat drives independent damping air-conditioning unit after supplying water and sending into absorption heat exchange station/energy centre, supply the regenerated heat water-driven humidity control device that full heat drives independent damping air-conditioning unit by regenerator again and carry out air humidity adjusting, by domestic hot-water's heat exchanger, user's side hot-water heating system recirculated water is heated, and carry out the adjusting of a secondary net supply and return water temperature and flow according to outdoor weather and each thermal substation user needs,
3) when the transition stage in above-mentioned two stages not:
31) enter absorption exhaust steam residual heat by the valve regulated exhaust steam in steam turbine and reclaim the evaporimeter of heat pump and the ratio of air cooling or water-cooled condenser, regulate the ratio that pressing in steam turbine draws gas enters generator and the initial station vapor-water heat exchanger of absorption exhaust steam residual heat recovery heat pump, make a secondary net backwater all enter absorber and condenser and be heated to 85~90 ℃, directly sending into a secondary net water main;
32) the exhaust steam condensate water of the heat source side of evaporimeter outlet being sent into absorption exhaust steam residual heat reclaims absorber and the condenser (62) of heat pump and is heated to and send into the boiler water-suppling heater group after being no more than 90 ℃, one secondary net heats user's side hot-water heating system recirculated water by domestic hot-water's heat exchanger after supplying water and sending into absorption heat exchange station/energy centre, and carries out a secondary net for the adjusting of circling water flow rate according to each thermal substation user needs;
If any many absorption heat pump parallel operations, absorption exhaust steam residual heat reclaims heat pump and sends into wherein an absorption exhaust steam residual heat reclaim and send into the continuation of boiler water-suppling heater group after the absorber of heat pump and condenser are heated to 85~90 ℃ with the exhaust steam condensate water of steam turbine and heat and send into boiler except absorb exhaust steam residual heat by evaporimeter in the whole year operation in heating load peak period after.
CN2011102544798A 2011-08-31 2011-08-31 Regional heating, cooling and power combined energy system and method based on absorption heat exchange CN102331110B (en)

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CN104654652B (en) * 2014-01-27 2017-09-08 李华玉 The dynamic co-feeding system of heat
CN104632310B (en) * 2015-02-09 2017-07-28 北京北方三合能源技术有限公司 It is a kind of to improve vacuum and the embedded hybrid system of residual heat of condensed water heat supply
CN109028649A (en) * 2017-06-09 2018-12-18 西安巨杉能源技术有限公司 City summer central cooling is given by power of steam power plant's steam exhaust
CN207488797U (en) * 2017-11-22 2018-06-12 深圳市爱能森科技有限公司 A kind of wisdom energy source device
CN109798692B (en) * 2018-11-04 2020-03-17 大唐(北京)能源管理有限公司 Air cooling and wet cooling unit hybrid operation system
CN111706897B (en) * 2020-06-28 2021-02-26 燕山大学 Thermoelectric double-drive heat pump system for storing waste heat of power plant in winter and summer by utilizing soil cross-season

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