CN202267113U - Combined gas-steam cycle cooling, heating and power system with zero energy loss rate for heat and power plant - Google Patents

Combined gas-steam cycle cooling, heating and power system with zero energy loss rate for heat and power plant Download PDF

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Publication number
CN202267113U
CN202267113U CN2011203434663U CN201120343466U CN202267113U CN 202267113 U CN202267113 U CN 202267113U CN 2011203434663 U CN2011203434663 U CN 2011203434663U CN 201120343466 U CN201120343466 U CN 201120343466U CN 202267113 U CN202267113 U CN 202267113U
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China
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heat
water
absorption
flue gas
heat pump
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CN2011203434663U
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Chinese (zh)
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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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Abstract

The utility model relates to a combined gas-steam cycle cooling, heating and power system with a zero energy loss rate for a heat and power plant and belongs to the technical field of combined gas-steam cycle cooling, heating and power. The combined gas-steam cycle cooling, heating and power system comprises a combined heating and power cycle consisting of an engine, an exhaust-heat boiler, a steam turbine, a generator and the like, as well as a large temperature difference absorption type exhaust steam recovery heat pump, a large temperature difference absorption type flue gas recovery heat pump, a flue gas condensation recovery collection device, an initial station steam-water heat exchanger, an absorption type heat pump/refrigeration integrated machine and the like. According to an operation adjusting method, the whole heat system which is based on an absorption type heat exchange and waste heat recovery and large temperature difference heat supply technology and is combined with a weather compensation technology is combined with an energy optimized operation adjusting method is adopted, so that the utilization rate of primary energy of the heat power plant approaches to or event exceeds 100 percent aiming at the characteristics of the combined gas-steam cycle system. According to the combined gas-steam cycle cooling, heating and power system disclosed by the utility model, power generation, heat supply and air-conditioner cold supply equipment is driven by various stages of energy resources with energy grades, thus compared with a gas net calorific value, effective energy output and energy-saving effect without energy loss are achieved.

Description

The circulating thermoelectric cold triple supply system is steamed in a kind of combustion of steam power plant of the Zero-energy proportion of goods damageds
Technical field
The utility model belongs to combustion and steams combined cycle thermoelectric cold triple supply technical field, and the circulating thermoelectric cold triple supply system is steamed in particularly a kind of combustion of steam power plant of the Zero-energy proportion of goods damageds.
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.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%; Significantly improving supply backwater temperature difference and reach more than 60~80% to increase the pipe network heat-carrying capacity, is that master's central heating field has breakthrough meaning in China with the coal-fired thermal power co-generation system.
On the other hand; Along with China improves requirement on environmental protection day by day; Natural gas is promoted as the large tracts of land of clean fuel and is used for heat supply and power field has formed an important development trend; But compare with the coal-burning co-generation unit; The primary energy utilization ratio and the economy thereof of the co-generation unit that natural gas acts as a fuel may not be remarkable, even design cycle and heat supply network situation do not attain under the situation of optimization and drive the heat pump heating energy-saving again, save money unlike direct combustion heat supplying of natural gas or generating earlier on the contrary, and its reason comprises: low capacity gas fired-boiler efficient is very high and heat range of heat is little, thermal losses and heat supply network transmission & distribution power consumption are little; Natural gas power efficient is high, electric power is easy to remote the conveying and heat pump efficiency reaches certain level and can guarantee better economic property; Natural gas can be transported to the user area at a distance, and concentrates the hot water or the steam of heat supply network to carry power consumption and radiation loss significantly to increase at a distance; Combustion is steamed the excess air factor of combined cycle (CCPP) and is twice than gas fired-boiler and abovely causes flue gas loss excessive; And the combustion of natural gas smoke evacuation is original just much bigger than the latent heat losses of coal combustion smoke evacuation; And traditional CCPP flow process is difficult to recycle this waste heat, causes CCPP therrmodynamic system energy loss serious thus; The loss of exhaust steam in steam turbine waste heat is huge etc.Thus, compare with the coal-burning cogeneration of heat and power, traditional CCPP often has preferable primary energy utilization ratio than the zonule, does not have superiority in its comprehensive benefit of large area heat supply field more.
In the common flow process of CCPP steam power plant heat supply generating; Generating rate in the winter time accounts for 20~35% of natural gas low heat valve; Have 40~50% to be used for heat supply approximately; Have approximately and account for the caloric requirement of steam turbine main steam more than 15~30% and discharge into the atmosphere from cooling tower or air cooling island through condenser; The body radiation loss of its Middle combustion engine, waste heat boiler and generator etc., mechanical loss and flue gas loss and power plant account for 25~30% from electricity consumption etc., and promptly the primary energy thermal efficiency of CCPP steam power plant only has an appointment 70~75% usually.Can reach more than 35~40% in generating in summer rate, 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.Connect steam power plant's (and concentrating the boiler room) and terminal use's thermal substation and be provided with the circulation water for heating that large heat exchanger is used to produce desired parameters, because supply backwater temperature difference is limited, large pump need be set simultaneously so that power to be provided.
Can know through estimation,, can promote steam power plant's primary energy ratio and reach 10~15% if can effectively reclaim the exhaust steam in steam turbine energy; And if the waste heat boiler exhaust gas temperature is reduced to 20~30 ℃ and fully reclaim latent heat and part sensible heats wherein, then can promote steam power plant's primary energy ratio and reach more than 15~20%.Thus, as take rational technology path, can steam power plant's primary energy ratio be improved about 25~35%, thereby the ratio that makes the effective energy output quantity of steam power plant account for the primary energy low heat valve reaches 95~100% even higher.When the CCPP system has realized 100% primary energy utilization ratio; Can think that this therrmodynamic system has realized the energy free loss, Here it is adopts the combustion steaming circulating thermoelectric cold triple supply system of new technique route to realize that the technology of " Zero-energy proportion of goods damageds steam power plant " is the connotation place of energy saving.
In regional air conditioner cooling field; Supply backwater temperature difference based on air conditioner cold water in the conventional art route is no more than 5~9 ℃ usually; Then to bear bigger district cooling load then its once to net quantity of circulating water very big, and even it carries power consumption excessive and lose its energy saving and economy fully when distance is big, therefore; See from the angle of application practice; District cooling remains a not mature technique field, and it mainly is to rely on concrete to sell economic factor such as caloric value lattice that the operation of the several limited district cooling cases of certain scale of China is at present kept, but not has really realized rational energy-saving effect.Thus, the real large-scale application of district cooling is a prerequisite solving the remote energy supply of the big temperature difference.
Simultaneously; The application's co-inventor 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.Combine independent damping cooling system technology such as the air conditioner user side etc. thus, can the steam power plant's comprehensive utilization of energy benefit during the summer cooling be risen to higher level.
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; Farthest utilize the energy resources of energy grades at different levels to drive generating, heat supply, air-conditioning cooling equipment; To obtain the highest primary energy utilization ratio, suitable environment protection benefit and economic and social benefits, still need inquire into solution thinking, integrated system and Optimization Design with globality and practicability about heat supply and cooling.
The utility model content
The purpose of the utility model is the technology and existing traditional heat utilization technology that has novelty for the above-mentioned each item of more effective employing; The circulating thermoelectric cold triple supply system is steamed in the combustion that proposes a kind of steam power plant of the Zero-energy proportion of goods damageds; Can do natural gas steam power plant and heat supply network 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. are as a system; Total optimization with Integrated Energy cascade utilization and economy thereof is a target; Adopting latest technological achievements is that baseset becomes generating, heat supply, an air-conditioning new system of realizing Zero-energy proportion of goods damageds steam power plant; Farthest utilize the energy resources of energy grades at different levels to drive generating, heat supply, air-conditioning cooling equipment, to obtain the highest primary energy utilization ratio, suitable environment protection benefit and economic and social benefits.
The circulating thermoelectric cold triple supply system is steamed in the combustion of the steam power plant of a kind of Zero-energy proportion of goods damageds that the utility model proposes; Comprise combustion machine, waste heat boiler, steam turbine, generator, boiler water-suppling heater group, air cooling or water-cooled condenser; And link to each other with each equipment be integrated into a total system by comprising that the energy transmission and distribution network that each power-equipment, electronic valve member are formed controls network with comprising the operation that computer, temperature, pressure and flow sensor are formed; It is characterized in that; This system comprises that also heat pump is reclaimed in the absorption exhaust steam of the big temperature difference, the absorption flue gas of the big temperature difference reclaims heat pump, flue gas condensing recovery harvester, initial station vapor-water heat exchanger, absorption heat pump/refrigerating all-in-one machine; Wherein, The high-temperature flue gas import of said waste heat boiler links to each other with the high temperature exhaust opening of combustion machine; The high-temperature flue gas outlet of waste heat boiler communicates with its smoke discharging pipe after reclaiming harvester via flue through flue gas condensing; The high steam outlet of waste heat boiler links to each other with the main steam import of steam turbine through the high steam pipeline; The outlet of the middle pressure steam of waste heat boiler is drawn gas after outlet links to each other through the Medium Pressure Steam Pipeline and the middle pressure of steam turbine; And link to each other with the generator import of the absorption exhaust steam recovery of big temperature difference heat pump, the generator import of the absorption flue gas recovery of big temperature difference heat pump and the high temperature side import of initial station vapor-water heat exchanger respectively; Reclaiming the generator water return outlet of heat pump, the generator water return outlet of the absorption flue gas recovery of big temperature difference heat pump and the low temperature side water return outlet of initial station vapor-water heat exchanger through the absorption exhaust steam of the big temperature difference links to each other with the high temperature side import of boiler water-suppling heater group; The smoke evacuation outlet of waste heat boiler links to each other with the high-temperature flue gas side-entrance that flue gas condensing reclaims harvester; The heat-carrying agent that flue gas condensing reclaims harvester links to each other through the evaporimeter that the absorption flue gas of the power-equipment and the big temperature difference reclaims heat pump; Flue gas condensing reclaims the low-temperature flue gas side outlet of harvester and arranges to atmosphere through the condensation chimney; The exhaust steam of steam turbine links to each other with the heat source side import that the exhaust steam side-entrance and the absorption exhaust steam residual heat of air cooling or water-cooled condenser reclaim the evaporimeter of heat pump simultaneously, and the heat source side outlet of the evaporimeter that the condensate outlet of air cooling or water-cooled condenser and absorption exhaust steam residual heat reclaim heat pump links to each other after booster pump reclaims the absorber of heat pump with the absorption exhaust steam of the big temperature difference or the cold side import of condenser links to each other, and behind valve, exports with the cold side of the absorber of the absorption exhaust steam recovery of big temperature difference heat pump or condenser and the low temperature import of the boiler water-suppling heater group of waste heat boiler links to each other; The absorption exhaust steam of the big temperature difference is reclaimed heat pump and is comprised that the import and export of once netting the backwater heated side of condenser and absorber link to each other through valve member in the absorption flue gas recovery of the temperature difference heat pump greatly; Link to each other with the import of once netting the backwater heated side of initial station vapor-water heat exchanger through series connected valve again, and through bypath valve with after the outlet of once netting the backwater heated side of initial station vapor-water heat exchanger links to each other, link to each other with the heat source side of the absorption heat pump/refrigerating all-in-one machine of consumer thermal substation through once netting circulating pump.
Technical characterstic of the utility model and beneficial effect:
The utility model system applies Tsing-Hua University river hundred million academicians, Fu Lin professor and this patent inventor's etc. up-to-date patented technology achievement, as combustion steam combined-cycle technology, steam power plant adopt absorption heat pump reclaim exhaust steam heat, the degree of depth reclaim fume afterheat, thermal substation adopt absorption heat pump replace surpassing heat exchanger with significantly promote the heat supply network supply backwater temperature difference, absorption heat pump absorbs exhaust steam residual heat and improves boiler feed temperature, multiple special-purpose absorption heat pump and system integration technology etc.; The innovative point of the utility model is; With the abovementioned technology is that the integrated technology system that can be applied to the cold coproduction therrmodynamic system of whole combustion steaming combined cycle thermoelectric 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 system is not the innovation of specific product aspect; And be intended to the concrete characteristics of CCPP and hot user's request and on the whole aspect of hot user's therrmodynamic system, proposed the practical solution of complete engineering, and adopt therrmodynamic system associating energy system planning technology that energy resource system and operation thereof are regulated to be optimized design by steam power plant.This system has realized reclaiming exhaust steam in steam turbine condensation heat, exhaust-heat boiler flue gas condensation heat and part sensible heat, and steam power plant's efficiency of energy utilization 25~35%, increase therrmodynamic system area of heat-supply service 40~50%, reduction therrmodynamic system circulating water flow and pump consume 30~40%, adopt cheap steam power plant's low grade heat energy driving Absorption Refrigerator to bear user's air-conditioning cooling function summer also increases the purposes such as cooling area more than the several times in the Technological Economy zone of reasonableness owing to having realized the big temperature difference feed drive energy to improve; Farthest improve the comprehensive utilization of energy benefit of entire system, have the engineering guiding value.
Description of drawings
Fig. 1 is the utility model system architecture schematic diagram.
Each unit number and title are following among Fig. 1:
Waste heat boiler 1, combustion machine 2, boiler water-suppling heater group 3, steam turbine 4, generator 5, air cooling or water-cooled condenser 6, the absorption exhaust steam of the big temperature difference are reclaimed heat pump 7, absorption heat pump/refrigerating all-in-one machine 8, initial station vapor-water heat exchanger 9, the absorption flue gas of the big temperature difference and are reclaimed heat pump 10, flue gas condensing and reclaim harvester 11, transmitting power equipment PF, booster pump P1, once net circulating pump P2, valve F1, valve member (F2, F3, F4), series connected valve F5, bypath valve F6.
The specific embodiment
The systems incorporate accompanying drawing and the embodiment of the utility model specify as follows:
The circulating thermoelectric cold triple supply system is steamed in the combustion of the steam power plant of the Zero-energy proportion of goods damageds that the utility model proposes; Structure is as shown in Figure 1; Comprise combustion machine 2, waste heat boiler 1, steam turbine 4, generator 5, boiler water-suppling heater group 3, air cooling or water-cooled condenser 6; And link to each other with each equipment be integrated into a total system by comprising that the energy transmission and distribution network that each power-equipment, electronic valve member are formed controls network (not shown parts belong to prior art) with comprising the operation that computer, temperature, pressure and flow sensor are formed; It is characterized in that; This system comprises that also heat pump 7 is reclaimed in the absorption exhaust steam of the big temperature difference, the absorption flue gas of the big temperature difference reclaims heat pump 10, flue gas condensing recovery harvester 11, initial station vapor-water heat exchanger 9, absorption heat pump/refrigerating all-in-one machine 8; Wherein, The high-temperature flue gas import of said waste heat boiler 1 links to each other with the high temperature exhaust opening of combustion machine 2; The high-temperature flue gas outlet of waste heat boiler 1 is reclaimed harvester 11 backs via flue through flue gas condensing and is communicated with its smoke discharging pipe A; The high steam outlet of waste heat boiler 1 links to each other with the main steam import of steam turbine 4 through high steam pipeline D; The outlet of the middle pressure steam of waste heat boiler 1 is drawn gas after outlet links to each other through Medium Pressure Steam Pipeline C and the middle pressure of steam turbine 4; And link to each other with the generator import of the absorption exhaust steam recovery of big temperature difference heat pump 7, the generator import of the absorption flue gas recovery of big temperature difference heat pump 10 and the high temperature side import of initial station vapor-water heat exchanger 9 respectively; Reclaiming the generator water return outlet of heat pump 7, the generator water return outlet of the absorption flue gas recovery of big temperature difference heat pump 10 and the low temperature side water return outlet of initial station vapor-water heat exchanger 9 through the absorption exhaust steam of the big temperature difference links to each other with the high temperature side import of boiler water-suppling heater group 3; The smoke evacuation outlet of waste heat boiler 1 links to each other with the high-temperature flue gas side-entrance that flue gas condensing reclaims harvester 11; The heat-carrying agent that flue gas condensing reclaims harvester 11 links to each other with the evaporimeter that the absorption flue gas of the big temperature difference reclaims heat pump 10 through transmitting power equipment PF, and flue gas condensing reclaims the low-temperature flue gas side outlet of harvester 11 and arranges to atmosphere through the condensation chimney, and the exhaust steam of steam turbine 4 links to each other with the heat source side import that absorption exhaust steam residual heat reclaims the evaporimeter of heat pump 7 with the exhaust steam side-entrance of air cooling or water-cooled condenser 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 6 reclaims the evaporimeter of heat pump 7 links to each other after booster pump P1 reclaims the absorber of heat pump 7 with the absorption exhaust steam of the big temperature difference or the cold side import of condenser links to each other; And behind valve F1, link to each other with the low temperature import of boiler water-suppling heater group 3 of cold side outlet and waste heat boiler 1 that absorber or the condenser of heat pump 7 are reclaimed in the absorption exhaust steam of the big temperature difference, the absorption exhaust steam of the big temperature difference is reclaimed heat pump 7 and is comprised that the import and export of once netting the backwater heated side of condenser and absorber link to each other through valve member (F2, F3, F4), link to each other with the import of once netting the backwater heated side of initial station vapor-water heat exchanger 9 through series connected valve F5 in the absorption flue gas recovery of the temperature difference heat pump 10 greatly again; And through bypath valve F6 with after the outlet of once netting the backwater heated side of initial station vapor-water heat exchanger 9 links to each other, link to each other with the heat source side of the absorption heat pump/refrigerating all-in-one machine 8 of consumer thermal substation through once netting circulating pump P2.
The function of above-mentioned capital equipment and implementation are explained as follows:
It is multi-state lithium bromide absorption type heat pump unit that the absorption flue gas of the big temperature difference reclaims heat pump 10; The low-temperature heat source type that wherein gets into its evaporimeter comprises that flue gas condensing reclaims the cooling circulating water or the flue gas of harvester 11; The cooling water that gets into its absorber and condenser comprise 20~35 ℃ of big temperature difference operating mode once net backwater, conventional temperature difference operating mode 40~70 ℃ once net backwater, 25~45 ℃ air cooling or water-cooled condenser 6 condensate or reclaim the absorber of heat pump 7 and 40~70 ℃ the once net that condenser comes out adds hot water by the absorption exhaust steam of the big temperature difference, the driving heat source that gets into its generator is the middle pressure steam of 0.2~1.0MPa, 80~170 ℃ hot water or 400~200 ℃ high-temperature flue gas.
It is multi-state lithium bromide absorption type heat pump unit that heat pump 7 is reclaimed in the absorption exhaust steam of the big temperature difference; The low-temperature heat source type that wherein gets into its evaporimeter comprises the cooling circulating water of exhaust steam in steam turbine and water-cooled condenser 6; The cooling water that gets into its absorber and condenser comprise 20~35 ℃ of big temperature difference operating mode once net backwater, conventional temperature difference operating mode 40~70 ℃ once net backwater or 25~45 ℃ the air cooling or the condensate of water-cooled condenser 6, the driving heat source that gets into its generator is the middle pressure steam of 0.2~1.0MPa or 80~170 ℃ hot water.
Absorption heat pump/refrigerating all-in-one machine 8 reaches the big temperature difference duplex condition type lithium bromide absorption type heat pump unit of the high temperature modification Absorption Refrigerator operating mode more than 7~20 ℃ in employing 80~130 ℃ of hot water drivings, chilled water outlet temperature in first kind of absorption heat pump operating mode and summer operation for winter operation.
Flue gas condensing reclaims harvester 11 and adopts the big temperature difference heat-exchanger rig of highly corrosion resistant gas-water type; Coupled transmitting power equipment PF adopts water pump, and the evaporimeter that the absorption flue gas of the big temperature difference reclaims heat pump 10 adopts recirculated water and absorption heat pump water as refrigerant wall-type heat exchange structure.
Flue gas condensing reclaims harvester 11 and adopts flue gas water conservancy diversion and cigarette amount control structure; Coupled transmitting power equipment PF adopts the flue gas ventilator structure, and the evaporimeter that the absorption flue gas of the big temperature difference reclaims heat pump 10 adopts highly corrosion resistant flue gas and absorption heat pump water as refrigerant wall-type heat exchange structure.
Valve member (F2, F3, F4) can with the absorption exhaust steam of the big temperature difference reclaim the import and export pipeline of once netting the backwater heated side that heat pump 7 and the absorption flue gas of the big temperature difference reclaim heat pump 10 be connected to series system, parallel way or connection in series-parallel hybrid mode and according to outdoor weather and each thermal substation user by the time thermic load needs regulate and carry out the conversion of connected mode when once netting supply and return water temperature and flow.
Waste heat boiler 1 is provided with hot water effluent's pipeline B; This hot water pipeline can be directly connected in and once net feed pipe, also can when the middle pressure steam quantity not sufficient of Medium Pressure Steam Pipeline C, substitute a part or whole middle pressure steam and send into the absorption heat pump main frame of the required driving of the latter or carry out heat release in the vapor-water heat exchanger at first stop.This design has the industry or the commercial user of more steam demand to some especially, when its quantity of steam is not enough, can change production part high-temperature-hot-water into as driving heat source, and this moment, the gross capability ratio of waste heat boiler was only produced steam for high.

Claims (6)

1. the circulating thermoelectric cold triple supply system is steamed in the combustion of the steam power plant of Zero-energy proportion of goods damageds; Comprise combustion machine, waste heat boiler, steam turbine, generator, boiler water-suppling heater group, air cooling or water-cooled condenser; And link to each other with each equipment be integrated into a total system by comprising that the energy transmission and distribution network that each power-equipment, electronic valve member are formed controls network with comprising the operation that computer, temperature, pressure and flow sensor are formed; It is characterized in that; This system comprises that also heat pump is reclaimed in the absorption exhaust steam of the big temperature difference, the absorption flue gas of the big temperature difference reclaims heat pump, flue gas condensing recovery harvester, initial station vapor-water heat exchanger, absorption heat pump/refrigerating all-in-one machine; Wherein, The high-temperature flue gas import of said waste heat boiler links to each other with the high temperature exhaust opening of combustion machine; The high-temperature flue gas outlet of waste heat boiler communicates with its smoke discharging pipe after reclaiming harvester via flue through flue gas condensing; The high steam outlet of waste heat boiler links to each other with the main steam import of steam turbine through the high steam pipeline; The outlet of the middle pressure steam of waste heat boiler is drawn gas after outlet links to each other through the Medium Pressure Steam Pipeline and the middle pressure of steam turbine; And link to each other with the generator import of the absorption exhaust steam recovery of big temperature difference heat pump, the generator import of the absorption flue gas recovery of big temperature difference heat pump and the high temperature side import of initial station vapor-water heat exchanger respectively; Reclaiming the generator water return outlet of heat pump, the generator water return outlet of the absorption flue gas recovery of big temperature difference heat pump and the low temperature side water return outlet of initial station vapor-water heat exchanger through the absorption exhaust steam of the big temperature difference links to each other with the high temperature side import of boiler water-suppling heater group; The smoke evacuation outlet of waste heat boiler links to each other with the high-temperature flue gas side-entrance that flue gas condensing reclaims harvester; The heat-carrying agent that flue gas condensing reclaims harvester links to each other through the evaporimeter that the absorption flue gas of the power-equipment and the big temperature difference reclaims heat pump; Flue gas condensing reclaims the low-temperature flue gas side outlet of harvester and arranges to atmosphere through the condensation chimney; The exhaust steam of steam turbine links to each other with the heat source side import that the exhaust steam side-entrance and the absorption exhaust steam residual heat of air cooling or water-cooled condenser reclaim the evaporimeter of heat pump simultaneously, and the heat source side outlet of the evaporimeter that the condensate outlet of air cooling or water-cooled condenser and absorption exhaust steam residual heat reclaim heat pump links to each other after booster pump reclaims the absorber of heat pump with the absorption exhaust steam of the big temperature difference or the cold side import of condenser links to each other, and behind valve, exports with the cold side of the absorber of the absorption exhaust steam recovery of big temperature difference heat pump or condenser and the low temperature import of the boiler water-suppling heater group of waste heat boiler links to each other; The absorption exhaust steam of the big temperature difference is reclaimed heat pump and is comprised that the import and export of once netting the backwater heated side of condenser and absorber link to each other through valve member in the absorption flue gas recovery of the temperature difference heat pump greatly; Link to each other with the import of once netting the backwater heated side of initial station vapor-water heat exchanger through series connected valve again, and through bypath valve with after the outlet of once netting the backwater heated side of initial station vapor-water heat exchanger links to each other, link to each other with the heat source side of the absorption heat pump/refrigerating all-in-one machine of consumer thermal substation through once netting circulating pump.
2. system according to claim 1; It is characterized in that; It is multi-state lithium bromide absorption type heat pump unit that the absorption flue gas of the said big temperature difference reclaims heat pump; The low-temperature heat source type that wherein gets into its evaporimeter comprises that flue gas condensing reclaims the cooling circulating water or the flue gas of harvester; The cooling water that gets into its absorber and condenser comprise 20~35 ℃ of big temperature difference operating mode once net backwater, conventional temperature difference operating mode 40~70 ℃ once net backwater, 25~45 ℃ air cooling or water-cooled condenser condensate or reclaim the absorber of heat pump and 40~70 ℃ the once net that condenser comes out adds hot water by the absorption exhaust steam of the big temperature difference, the driving heat source that gets into its generator is the middle pressure steam of 0.2~1.0MPa, 80~170 ℃ hot water or 400~200 ℃ high-temperature flue gas.
3. system according to claim 1; It is characterized in that; It is multi-state lithium bromide absorption type heat pump unit that heat pump is reclaimed in the absorption exhaust steam of the said big temperature difference; The low-temperature heat source type that wherein gets into its evaporimeter comprises the cooling circulating water of exhaust steam in steam turbine and water-cooled condenser; The cooling water that gets into its absorber and condenser comprise 20~35 ℃ of big temperature difference operating mode once net backwater, conventional temperature difference operating mode 40~70 ℃ once net backwater or 25~45 ℃ the air cooling or the condensate of water-cooled condenser 6, the driving heat source that gets into its generator is the middle pressure steam of 0.2~1.0MPa or 80~170 ℃ hot water.
4. system according to claim 1; It is characterized in that said absorption heat pump/refrigerating all-in-one machine is that winter operation is in first kind of absorption heat pump worker and the summer operation big temperature difference duplex condition type lithium bromide absorption type heat pump unit that 80~130 ℃ of hot water drive in adopting, the chilled water outlet temperature reaches the high temperature modification Absorption Refrigerator operating mode more than 7~20 ℃.
5. system according to claim 1; It is characterized in that; Said flue gas condensing reclaims harvester and adopts the big temperature difference heat-exchanger rig of highly corrosion resistant gas-water type; Connect this device delivery power-equipment and adopt water pump, the evaporimeter that the absorption flue gas of the big temperature difference reclaims heat pump adopts recirculated water and absorption heat pump water as refrigerant wall-type heat exchange structure.
6. system according to claim 1; It is characterized in that; Said flue gas condensing reclaims harvester and adopts flue gas water conservancy diversion and cigarette amount control structure; Connect this device delivery power-equipment and adopt the flue gas ventilator structure, the evaporimeter that the absorption flue gas of the big temperature difference reclaims heat pump adopts highly corrosion resistant flue gas and absorption heat pump water as refrigerant wall-type heat exchange structure.
CN2011203434663U 2011-09-14 2011-09-14 Combined gas-steam cycle cooling, heating and power system with zero energy loss rate for heat and power plant CN202267113U (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102359739A (en) * 2011-09-14 2012-02-22 张军 Gas-steam circulation heating-electricity-cooling combined supply system and method for thermal power plant with zero energy loss rate
CN103352746A (en) * 2013-06-20 2013-10-16 华电电力科学研究院 Natural gas heat and cold electric energy supply device based on fused salt heat storage
CN106050571A (en) * 2016-07-05 2016-10-26 西安交通大学 Communication base station comprehensive energy supply system and method based on wind-solar complementation
CN106556136A (en) * 2016-11-29 2017-04-05 无锡市锡源锅炉有限公司 A kind of pressure combustion boiler residual neat recovering system
CN108488877A (en) * 2018-01-03 2018-09-04 上海今日能源工程有限公司 A kind of hold over system being used for steam power plant and distributed trilogy supply gas turbine

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102359739A (en) * 2011-09-14 2012-02-22 张军 Gas-steam circulation heating-electricity-cooling combined supply system and method for thermal power plant with zero energy loss rate
CN102359739B (en) * 2011-09-14 2013-06-12 北京中科华誉能源技术发展有限责任公司 Gas-steam circulation heating-electricity-cooling combined supply system and method for thermal power plant with zero energy loss rate
CN103352746A (en) * 2013-06-20 2013-10-16 华电电力科学研究院 Natural gas heat and cold electric energy supply device based on fused salt heat storage
CN103352746B (en) * 2013-06-20 2015-09-02 华电电力科学研究院 Based on the rock gas cool and thermal power energy supplying device of fused salt accumulation of heat
CN106050571A (en) * 2016-07-05 2016-10-26 西安交通大学 Communication base station comprehensive energy supply system and method based on wind-solar complementation
CN106050571B (en) * 2016-07-05 2019-02-05 西安交通大学 A kind of communication base station comprehensive energy feed system and method based on wind light mutual complementing
CN106556136A (en) * 2016-11-29 2017-04-05 无锡市锡源锅炉有限公司 A kind of pressure combustion boiler residual neat recovering system
CN108488877A (en) * 2018-01-03 2018-09-04 上海今日能源工程有限公司 A kind of hold over system being used for steam power plant and distributed trilogy supply gas turbine

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