CN1629463A - Multifunctional distributed refrigeration, heat and electricity production system and method - Google Patents

Multifunctional distributed refrigeration, heat and electricity production system and method Download PDF

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CN1629463A
CN1629463A CN 200310123331 CN200310123331A CN1629463A CN 1629463 A CN1629463 A CN 1629463A CN 200310123331 CN200310123331 CN 200310123331 CN 200310123331 A CN200310123331 A CN 200310123331A CN 1629463 A CN1629463 A CN 1629463A
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heat
absorption
unit
generation
heating
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CN100390388C (en
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金红光
郑丹星
冯志兵
韩巍
隋军
王志峰
徐建中
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In Keke Lin energy saving environmental protection technology Co Ltd
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Institute of Engineering Thermophysics of CAS
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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
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/10Geothermal energy
    • 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
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00Combustion technologies with mitigation potential
    • Y02E20/14Combined heat and power generation [CHP]

Abstract

This invention relates to energy technique field and especially to a multi-function distribution heat and electricity co-production system and method, which comprises the following: gas turbine, dual-purpose lithium brominate absorptive-type set, exhaust-heat boiler, heat exchanger, absorptive dehumidification device, cold storage device, heat storage device and compression set. The system comprehensively uses the multiple energies and resources to become a new system with input and output of multiple energies.

Description

Multi-functional distributed triple-generation system and method
Technical field
The present invention relates to energy technology field, particularly a kind of multi-functional distributed triple-generation system and method.
Background technique
Distributed energy resource system is a kind of novel energy system, compares with the conventional energy resource supply system, has safe and reliable, advantage such as efficiency of energy utilization is high, environmental friendliness, Economy are good, thereby is subjected to worldwide extensive attention.The distributed triple-generation system is that prospect is the brightest and the clearest in the distributed energy resource system, the technology of tool practicability and development vitality.
Present distributed triple-generation system mainly is made up of dynamic power device and absorption unit etc.Power plant are generally gas turbine or internal-combustion engine.The smoke evacuation of gas turbine or internal-combustion engine drives absorption unit as high temperature heat source.In absorption unit refrigeration in summer, absorption in the winter time unit uses as heat exchanger, produces heat and satisfies Building Heat load and domestic hot-water's demand.There is following problem mostly in the present distributed triple-generation system schema.1. energy utilizes unreasonable.The temperature of exhaust fume of gas turbine and internal-combustion engine is at 400-500 ℃, and caused the waste of the energy with warm waste heat direct heating in this part winter.In addition, a lot of systems (for example the system of Univ Maryland-Coll Park USA, the system of Beijing Gas Building etc.) often take the method for afterburning in order to increase refrigerating capacity, use high-grade fuel to produce the principle that low-grade cold energy does not meet cascaded utilization of energy more.2. the condenser of absorption unit is to a large amount of low-temperature heat quantities of environmental emission, not only consumes a large amount of electric energy (power consumption of cooling waterpump) but also causes thermo-pollution.3. do not consider the integration of renewable energy sources and distributed triple-generation system.
Summary of the invention
In order to overcome the shortcoming of existing cogeneration cooling heating system, the objective of the invention is to propose a kind of new distribution type cogeneration cooling heating system and method thereof.This system has following characteristics: 1. the cascade utilization of paying attention to energy, the energy that fuel combustion produces from high temperature to be divided into high temperature section, middle-temperature section and low-temperature zone near ambient temperature, heat in the different temperatures interval is carried out the utilization of different modes, rationally use with the step that reaches the energy.2. pay attention to the complementation of renewable energy sources and water resources and distributed triple-generation system, make new system possess the effect of various energy resources input and various energy resources output.Since the present invention with solar energy and water resources as low-temperature heat source, make absorption heat pump can move with heat pump mode in the winter time, the heat grade of low-temperature heat source brought up to satisfy the level that heat supply requires, compare the energy saving of system rate with the direct heating mode and significantly improve.3. at the work characteristics of absorption refrigeration unit, proposed in absorption refrigeration unit condenser, to extract domestic hot-water's method, the tow taste heat that originally is discharged in the environment has been made full use of.4. first building function and cogeneration cooling heating system are integrated, the method is particularly suitable for occasions such as natatorium.Concrete grammar is with the Chi Shui of the swimming pool cooling water as the absorption refrigeration unit, realized that on the one hand swimming pool water heats, in the efficiency of energy utilization that improves the absorption refrigeration unit, also reduced the load of the cooling tower of absorption refrigeration unit on the other hand.
In order to achieve the above object, technical solution of the present invention provides a kind of multi-functional distributed triple-generation system, the generating of power plant consumption of fossil fuels, utilizing waste heat for refrigeration or heating, its comprehensive utilization various energy resources and resource, the middle-low temperature heat of comprehensive cascade utilization power plant discharging, cogeneration cooling heating system combines with building function.
Described multi-functional distributed triple-generation system, its system comprises fossil energy and renewable energy sources by the difference comprehensive utilization various energy resources of energy grade, renewable energy sources is replenished as fossil energy.
Described multi-functional distributed triple-generation system, its described renewable energy sources is a solar energy, in the winter time as the low-temperature heat source of absorption heat pump.
Described multi-functional distributed triple-generation system, the middle temperature waste heat of its power plant discharging combines with renewable energy sources, drives the absorption type heat heat pump heating in the winter time.
Described multi-functional distributed triple-generation system, wherein water and geothermal resources rationally utilize, winter, compression heat pump therefrom extracted heat in water and the underground heat, with the low-temperature heat source of solar energy as absorption heat pump, reduce cooling tower load as the heat of low-temperature receiver absorption refrigerating machine discharging summer.
Described multi-functional distributed triple-generation system, it reclaims low temperature exhaust heat, is used for driving the absorbed moisture removing device in summer; Low-temperature waste heat in the summer absorption unit condenser can be used for heating swimming pool water, makes cogeneration cooling heating system combine with the building function.
Described multi-functional distributed triple-generation system, extract the domestic hot-water its summer from the condenser of absorption unit, not only improve the level of utilizing of the energy, reduces hot driving and pollution, and improve the performance of cooling machine set.
Described multi-functional distributed triple-generation system, it is with cold-storage or heat-stored device and distributed triple-generation system combination, make the complementation of cold-storage and thermal storage device function, regulate the effect of cogeneration cooling heating system cold ratio of electricity or electric heating ratio in addition, increase the Security of system operation time and raising cooling or heat supply.
Described multi-functional distributed triple-generation system, its compression-type refrigerating system is the complementation of absorption system, plays the effect of low temperature level heat pump when ambient temperature is very low in the winter time, can move under any in the winter time environmental conditions.
A kind of multi-functional distributed triple-generation system, by gas turbine, residual heat type double-effect lithium bromide absorption type unit, heat exchanger, the absorbed moisture removing device, cold accumulator, compression type unit, compression heat pump is formed, wherein, fuel enters the turbine acting generating of gas turbine, and gas turbine drives double-effect lithium bromide absorption type unit freezes or heats, waste heat is through heat exchanger, be used to drive the absorbed moisture removing device, its gas turbine is connected in residual heat type double-effect lithium bromide absorption type unit, and residual heat type double-effect lithium bromide absorption type unit is connected in heat exchanger, heat exchanger is connected in the absorbed moisture removing device, and the compression type unit is connected in cold accumulator.
A kind of multi-functional distributed triple-generation system, by gas turbine, in warm exhaust heat boiler, the low temperature exhaust heat boiler, steam type double-effect lithium bromide absorption type unit, the absorbed moisture removing device, cold accumulator and compression type unit, compression heat pump, heat-stored device is formed, wherein, fuel enters the turbine acting generating of gas turbine, in warm exhaust heat boiler drive steam type double-effect lithium bromide absorption type unit and be used for refrigeration or heat, the low temperature exhaust heat boiler is used to provide the part refrigeration or heats, warm exhaust heat boiler during its gas turbine is connected in, in warm exhaust heat boiler be connected in steam type double-effect lithium bromide absorption type unit, heat-stored device and low temperature exhaust heat boiler, the low temperature exhaust heat boiler is connected in the absorbed moisture removing device, and the compression type unit is connected in cold accumulator.
Described multi-functional distributed triple-generation system, when it heated, the low-temperature heat source during absorption unit work was made up of two-part: a part is from solar energy, the heat that another part therefrom extracts in water and the underground heat from the compression type unit.
Described multi-functional distributed triple-generation system, when it heats, low-temperature heat source when absorption unit is worked is made up of two-part: a part is from solar energy, another part from contract the formula unit therefrom with underground heat in the heat that extracts, directly with middle hydro-thermal amount heating, the hot water that the low temperature exhaust heat boiler is produced is used for heating to compression heat pump.
The invention has the beneficial effects as follows, utilize the principle of the system intergration to improve the level of utilizing of energy; Solve renewable energy sources (solar energy) and utilized problem of difficult winter; The method that distributed energy resource system combines with the building function has been proposed; Further excavated the energy-saving potential of absorption unit itself; By above improvement system is compared with present other cogeneration cooling heating systems and have obvious energy-saving effect.
Description of drawings
Fig. 1 is multi-functional distributed triple-generation first embodiment of system of the present invention;
Fig. 2 is multi-functional distributed triple-generation second embodiment of system of the present invention.
Embodiment
The present invention proposes two kinds of concrete technological schemes, these two kinds of technological schemes all have characteristics set forth above.Scheme 1 is gas turbine and the absorption unit distributed triple-generation of residual heat type system, and scheme 2 is gas turbine and the absorption unit distributed triple-generation of steam type system, will be elaborated to these two kinds of schemes below.
Scheme 1 system is by small size gas turbine, residual heat type double-effect lithium bromide absorption type refrigerating/heat pump unit, and heat exchanger, absorbed moisture removing device and compression-type refrigeration/heat pump unit, cold accumulator is formed.The operation of this system can be divided into dual mode, is respectively under the cooling condition method of operation under the method for operation and heat supply operating mode.During the cooling condition operation, fuel is introduced into the gas-turbine combustion chamber burning, and the combustion gas that produces High Temperature High Pressure enters turbine acting generating.Gas turbine (or internal-combustion engine) smoke evacuation directly drives residual heat type double-effect lithium bromide absorption type unit refrigeration, recycles the part heat extraction productive life hot water in the condenser simultaneously, and all the other used heat are taken away by municipal middle water and entered environment.Leave the flue gas of absorption unit, enter heat exchanger, the hot water that produces 95 ℃ is in order to driving the absorbed moisture removing device, thereby can share the part cooling load.The main effect of compression-type refrigeration unit is to utilize low ebb electricity and system's excrescent electric power cold-storage.When the electric cold ratio of system greater than load electric cold than the time, compression-type refrigerating system is started working, and unnecessary electricity is converted into cold storing.When the electric cold ratio of system less than load electric cold than the time, the cold that cold accumulator is stored discharges.When moving under heating condition, the gas turbine smoke evacuation directly drives the double-effect lithium bromide absorption type unit, and absorption unit and compression type unit are all done the heat pump mode operation.The low-temperature heat source of operation of heat pump is made up of two-part: a part low warm from solar energy, the heat that another part therefrom extracts in water and the underground heat from the compression type unit.In addition, system also comprises one group of compression heat pump, directly the municipal middle water temperature increase is used for heating, and this heat pump also plays the effect of regulating the electric heating ratio.The hot water that this moment, the low temperature exhaust heat boiler was produced is directly used in heating and the domestic hot-water is provided.
The system body of scheme 2 and scheme 1 are basic identical, and warm exhaust heat boiler and steam type lithium bromide double effect absorption unit replaced the gas-type lithium bromide absorption-type machine unit during difference was to use.Identical with scheme 1, this scheme also can be divided into two kinds of methods of operation.Under cooling condition, fuel enters gas turbine power generation, and warm exhaust heat boiler was produced steam during the turbine exhaust at first entered.Steam can be assigned in the double-effect lithium bromide absorption type unit of many parallel connections by the female pipe of steam and freeze, the heat extraction of adopting the method identical with scheme 1 to reclaim absorption unit condenser simultaneously.In the smoke evacuation of warm exhaust heat boiler enter the low temperature exhaust heat boiler, produce the hot water that drives 95 ℃ in absorbed moisture removing device.The effect of compression-type refrigeration unit is with scheme 1.When under heating condition, moving, the steam driven double-effect lithium bromide absorption type unit heat supply that middle temperature exhaust heat boiler produces, remaining part is identical with scheme 1.
More than the concrete thinking of two schemes aspect cascaded utilization of energy be: the heat of high temperature section flue gas be used for the generating; The middle-temperature section heat drives heat pump in the winter time the time, the heat that extracts more low temperature from renewable energy sources or municipal middle water resource is used for heat supply, energy utilizes level to be higher than the direct heating mode of conventional cool and thermal power system, and that the heat of middle-temperature section is used to drive absorption unit refrigeration summer is as broad as long with usual manner; The low-temperature zone heat directly satisfies general hot and the dehumidifying demand used, and reduces exhaust temperature as far as possible, and temperature of exhaust fume is reduced to about 100 ℃, reduces emission loss and environmental pollution.System does not have afterburning under nominal situation, not enough refrigerating capacity is provided by compression-type refrigeration and cold accumulator, but still keeps absorption refrigeration to account for the principal status of public economy of cooling load.Compression type unit and cold accumulator are finished the function of regulating the cold ratio of cool and thermal power system electricity together.Renewable energy sources and water resources and cogeneration cooling heating system complementation are unexistent in the present other system in the scheme.Two schemes that the present invention proposes have all considered to use solar energy, geothermal power and middle water resources in cogeneration cooling heating system.As everyone knows, with the weakening of radiation intensity, heat-collecting temperature sharply descends solar energy in the winter time, and this is the difficult point that solar energy utilizes in the winter time.In summer, the high-temperature water that solar energy produces participates in absorbed moisture removing, and low temperature water is used to supply the domestic hot-water; In the winter time, solar energy can be realized the stable operation in two seasons of summer in solar thermal utilization winter as the part (about 25 ℃) of double effect absorption type heat pump low-temperature heat source.Utilize geotemperature with the little characteristics of variation of ambient temperature, as the cooling water of system's refrigerator, then can be used as the low-temperature heat source of system's heat pump unit with surface water or phreatic water winter summer.Greatly reduce the consumption of cooling water with the cooling water of municipal middle water as cooling machine set summer in the scheme, even need not cooling tower, thereby produce good economic benefit and view benefit.Water is with solar water, underground heat etc. in can utilizing winter, as the low-temperature heat source of absorption heat pump, and also can be through after the temperature raising of compression type unit, indirectly as the absorption heat pump low-temperature heat source.There is a large amount of low temperature hot types to go into environment in the absorption unit condenser, through studies show that wherein nearly 10% heat can reclaim, and is used for productive life hot water.Specific practice is that heat exchanger of addition is used for productive life hot water before condenser, and this method has tangible energy-saving benefit with respect to present method with gas fired boiler or electric heating productive life hot water.The heat temperature of residue 90% can be considered to combine with the function of building about 40 ℃ in the condenser.For example can combine with the natatorium, natatorium Chi Shui will maintain 25 ℃ usually, the low temperature heat extraction of condenser is enough to heat swimming pool water, so not only saved conventional enormous expenditure with natural gas boiler or electric heating Chi Shui, also make absorption unit condenser working condition be improved, having improved the efficiency of energy utilization of absorption unit, is to kill two birds with one stone, and very remarkable energy saving effect is arranged.
Under first embodiment's cooling condition of Fig. 1, fuel S1 is introduced into gas turbine 1 combustion chambers burn, and combustion gas enters combustion gas turbine acting generating.Gas turbine smoke evacuation S2 directly drives residual heat type double-effect lithium bromide absorption type unit 2 refrigeration S4; Also consider the heat extraction of double-effect lithium bromide absorption type unit condenser is reclaimed, be used for productive life hot water S3 and heating swimming pool water.Leave 170 ℃ flue gas S5 of absorption unit, enter heat exchanger 3, produce about 95 ℃ of hot water S7, S9, be used to drive absorbed moisture removing device 4, produce cold S10.The method of operation of the variation decision compression-type refrigeration unit 5 of cold ratio of electricity and refrigeration duty.When the electric cold ratio of system during greater than electric cold ratio of load, compression-type refrigerating system is started working, and unnecessary electricity is converted into cold is stored in cold accumulator 6, utilizes ebb electricity refrigeration S21 as in the night, be stored in the cold accumulator 6, cold accumulator 6 discharges the cold S22 of storage at night by day.And when absorption refrigeration unit 5 and cold accumulator 6 can not satisfy building refrigeration duty demand, compression type unit 5 started external cooling S20.The building refrigeration duty is by absorption refrigeration unit 2, compression type unit 5, and cold accumulator 6 and absorbed moisture removing device 4 provide jointly.Solar energy S11 is used for production department and divides life hot water S14.Underground heat and middle water S15 are as low-temperature heat source S6, the S18 of absorption unit 2 and compression type unit 5.
Under first embodiment's heat supply operating mode of Fig. 1, it is identical with the UTILIZATION OF VESIDUAL HEAT IN process and the cooling condition of flue gas to generate electricity, and just the residual heat type double-effect lithium bromide absorption type unit 2 of this moment and compression type unit 5 are all done the heat pump use.Low-temperature heat source during absorption heat pump 2 work is made up of two-part: a part is from solar energy S12, heat S19, S13 that another part therefrom extracts among water and the underground heat S18 from compression type unit 5.The smoke discharging residual heat S5 of absorption unit 2 is reclaimed by heat exchanger 3, and 95 ℃ of hot water S7, S8 of production are used for heating.In addition, this system also comprises one group of compression heat pump 7, directly middle water S16 temperature is brought up to 50 ℃ of heating S17, and this heat pump 7 also plays the effect of regulating the electric heating ratio.
Under second embodiment's cooling condition of Fig. 2, fuel S1 enters gas turbine 1 generating.Warm exhaust heat boiler 9 production gauge pressures were the saturated vapour S3 of 6bar during gas turbine smoke evacuation S2 at first entered.Steam S3, S5 enter the S7 that freezes in the double-effect lithium bromide absorption type unit 11.Also consider the heat extraction of double-effect lithium bromide absorption type unit condenser is reclaimed, be used for productive life hot water S10 and heating swimming pool water.All the other waste heat utilization municipal middle waters of steam operated absorption refrigerating machine group 11 and underground heat S18, S19, S8 cooling.In 170 ℃ of warm exhaust heat boiler 9 smoke evacuation S4 enter low temperature exhaust heat boiler 10, produces 95 ℃ hot water S13, S14, drive absorbed moisture removing device 4, generation cold S16.Identical in the working principle of compression type unit 5 and the scheme 1 seen scheme 1 for details.Solar energy S29 is used for productive life hot water S31, S11.
Under second embodiment's heat supply operating mode of Fig. 2, it is identical with the UTILIZATION OF VESIDUAL HEAT IN process and the cooling condition of flue gas to generate electricity, and just double-effect lithium bromide absorption type unit 11 and the compression type unit 5 of this moment are all made heat pump.Low-temperature heat source during heat pump 11 work is made up of two-part: a part is from solar energy S30, and another part comes the heat S9 that therefrom extracts among water and underground heat S21, the S23 in compressed formula unit 5.In addition, this system also comprises one group of compression heat pump 7, directly middle coolant-temperature gage S22 is brought up to 50 ℃ of state S28 heating, and this heat pump also plays the effect of regulating the electric heating ratio.Hot water S13, S15 that this moment, low temperature exhaust heat pot 10 was produced are used to the S17 that heats.When system's heat yield is loaded greater than Building Heat, can be earlier the heat of high-temperature steam be stored S3, S6 with heat-stored device 8, guarantee the gas turbine oepration at full load, avoided the gas turbine sub load to cause systematic function to descend.The heat that heat-stored device 8 stores can discharge S12 when the building heat load increases.

Claims (13)

1. multi-functional distributed triple-generation system, the generating of power plant consumption of fossil fuels, utilizing waste heat for refrigeration or heating is characterized in that: comprehensive utilization various energy resources and resource, the middle-low temperature heat of comprehensive cascade utilization power plant discharging, cogeneration cooling heating system combines with building function.
2. multi-functional distributed triple-generation as claimed in claim 1 system, it is characterized in that: system comprises fossil energy and renewable energy sources by the difference comprehensive utilization various energy resources of energy grade, and renewable energy sources is replenished as fossil energy.
3. multi-functional distributed triple-generation as claimed in claim 2 system, it is characterized in that: described renewable energy sources is a solar energy, in the winter time as the low-temperature heat source of absorption heat pump.
4. multi-functional distributed triple-generation as claimed in claim 1 system, it is characterized in that: the middle temperature waste heat of power plant discharging combines with renewable energy sources, drives the absorption type heat heat pump heating in the winter time.
5. multi-functional distributed triple-generation as claimed in claim 1 system, it is characterized in that: middle water and geothermal resources rationally utilize, winter, compression heat pump therefrom extracted heat in water and the underground heat, with the low-temperature heat source of solar energy as absorption heat pump, reduce cooling tower load as the heat of low-temperature receiver absorption refrigerating machine discharging summer.
6. multi-functional distributed triple-generation as claimed in claim 1 system is characterized in that: reclaim low temperature exhaust heat, be used for driving the absorbed moisture removing device in summer; Low-temperature waste heat in the summer absorption unit condenser can be used for heating swimming pool water, makes cogeneration cooling heating system combine with the building function.
7. multi-functional distributed triple-generation as claimed in claim 1 system, it is characterized in that: extract the domestic hot-water summer from the condenser of absorption unit, not only improves the level of utilizing of the energy, reduces hot driving and pollution, and improve the performance of cooling machine set.
8. multi-functional distributed triple-generation as claimed in claim 1 system, it is characterized in that: with cold-storage or heat-stored device and distributed triple-generation system combination, make the complementation of cold-storage and thermal storage device function, regulate the effect of cogeneration cooling heating system cold ratio of electricity or electric heating ratio in addition, increase the Security of system operation time and raising cooling or heat supply.
9. multi-functional distributed triple-generation as claimed in claim 1 system, it is characterized in that: compression-type refrigerating system is the complementation of absorption system, play the effect of low temperature level heat pump when ambient temperature is very low in the winter time, can move under any in the winter time environmental conditions.
10. multi-functional distributed triple-generation system, by gas turbine (1), residual heat type double-effect lithium bromide absorption type unit (2), heat exchanger (3), absorbed moisture removing device (4), cold accumulator (6), compression type unit (5), compression heat pump (7) is formed, and wherein, fuel enters the turbine acting generating of gas turbine (1), gas turbine drives double-effect lithium bromide absorption type unit (2) freezes or heats, waste heat is used to drive absorbed moisture removing device (4) through exchanger (3), it is characterized in that, gas turbine (1) is connected in double-effect lithium bromide absorption type unit (2), double-effect lithium bromide absorption type unit (2) is connected in exchanger (3), and heat exchanger (3) is connected in absorbed moisture removing device (4), and compression type unit (5) is connected in cold accumulator (6).
11. multi-functional distributed triple-generation system, by gas turbine (1), in warm exhaust heat boiler (9), low temperature exhaust heat boiler (10), steam type double-effect lithium bromide absorption type unit (11), absorbed moisture removing device (4), cold accumulator (6) and compression type unit (5), compression heat pump (7), heat-stored device (8) is formed, wherein, fuel enters the turbine acting generating of gas turbine (1), in warm exhaust heat boiler (9) drive steam type double-effect lithium bromide absorption type unit (11) and be used for refrigeration or heat, low temperature exhaust heat boiler (10) is used to provide the part refrigeration or heats, it is characterized in that, warm exhaust heat boiler (9) during gas turbine (1) is connected in, in warm exhaust heat boiler (9) be connected in steam type double-effect lithium bromide absorption type unit (11), heat-stored device (8) and low temperature exhaust heat boiler (10), low temperature exhaust heat boiler (10) is connected in absorbed moisture removing device (4), and compression type unit (5) is connected in cold accumulator (6).
12. multi-functional distributed triple-generation system as claim 10, it is characterized in that, when heating, the low-temperature heat source in the absorption unit of residual heat type (2) when work is made up of two-part: a part is from solar energy, the heat that another part therefrom extracts in water and the underground heat from compression type unit (5).
13, as the multi-functional distributed triple-generation system of claim 11, it is characterized in that, when heating, low-temperature heat source during the absorption unit of steam type (11) work is made up of two-part: a part is from solar energy, another part from contract formula unit (5) therefrom with underground heat in the heat that extracts, directly with middle hydro-thermal amount heating, the hot water that low temperature exhaust heat boiler (10) is produced is used for heating to compression heat pump (7).
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