WO2002018849A1 - Systeme de refrigeration par absorption - Google Patents
Systeme de refrigeration par absorption Download PDFInfo
- Publication number
- WO2002018849A1 WO2002018849A1 PCT/JP2000/005839 JP0005839W WO0218849A1 WO 2002018849 A1 WO2002018849 A1 WO 2002018849A1 JP 0005839 W JP0005839 W JP 0005839W WO 0218849 A1 WO0218849 A1 WO 0218849A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- heat exchanger
- temperature
- low
- regenerator
- temperature heat
- Prior art date
Links
- 238000010521 absorption reaction Methods 0.000 title claims abstract description 146
- 238000010438 heat treatment Methods 0.000 claims abstract description 112
- 239000006096 absorbing agent Substances 0.000 claims abstract description 72
- 239000003507 refrigerant Substances 0.000 claims abstract description 63
- 239000007788 liquid Substances 0.000 claims description 125
- 239000002250 absorbent Substances 0.000 claims description 107
- 230000002745 absorbent Effects 0.000 claims description 106
- 239000000498 cooling water Substances 0.000 claims description 27
- 238000002485 combustion reaction Methods 0.000 claims description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 239000012141 concentrate Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 3
- 239000003463 adsorbent Substances 0.000 abstract 7
- 239000000243 solution Substances 0.000 description 59
- 230000000694 effects Effects 0.000 description 18
- 239000007789 gas Substances 0.000 description 17
- 230000004048 modification Effects 0.000 description 13
- 238000012986 modification Methods 0.000 description 13
- 238000010586 diagram Methods 0.000 description 11
- 238000001816 cooling Methods 0.000 description 9
- 230000008929 regeneration Effects 0.000 description 7
- 238000011069 regeneration method Methods 0.000 description 7
- 239000000446 fuel Substances 0.000 description 6
- AMXOYNBUYSYVKV-UHFFFAOYSA-M lithium bromide Chemical compound [Li+].[Br-] AMXOYNBUYSYVKV-UHFFFAOYSA-M 0.000 description 6
- 239000000126 substance Substances 0.000 description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- VZSRBBMJRBPUNF-UHFFFAOYSA-N 2-(2,3-dihydro-1H-inden-2-ylamino)-N-[3-oxo-3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propyl]pyrimidine-5-carboxamide Chemical compound C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)C(=O)NCCC(N1CC2=C(CC1)NN=N2)=O VZSRBBMJRBPUNF-UHFFFAOYSA-N 0.000 description 1
- FYELSNVLZVIGTI-UHFFFAOYSA-N 2-[4-[2-(2,3-dihydro-1H-inden-2-ylamino)pyrimidin-5-yl]-5-ethylpyrazol-1-yl]-1-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)ethanone Chemical compound C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)C=1C=NN(C=1CC)CC(=O)N1CC2=C(CC1)NN=N2 FYELSNVLZVIGTI-UHFFFAOYSA-N 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- AFCARXCZXQIEQB-UHFFFAOYSA-N N-[3-oxo-3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CCNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 AFCARXCZXQIEQB-UHFFFAOYSA-N 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B27/00—Machines, plants or systems, using particular sources of energy
- F25B27/02—Machines, plants or systems, using particular sources of energy using waste heat, e.g. from internal-combustion engines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B15/00—Sorption machines, plants or systems, operating continuously, e.g. absorption type
- F25B15/008—Sorption machines, plants or systems, operating continuously, e.g. absorption type with multi-stage operation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2333/00—Details of boilers; Analysers; Rectifiers
- F25B2333/003—Details of boilers; Analysers; Rectifiers the generator or boiler is heated by combustion gas
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2333/00—Details of boilers; Analysers; Rectifiers
- F25B2333/007—Details of boilers; Analysers; Rectifiers the generator or boiler heated by heat exchangers with steam or hot water as heating fluid or by a secondary boiling-condensing heater
-
- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/27—Relating to heating, ventilation or air conditioning [HVAC] technologies
- Y02A30/274—Relating to heating, ventilation or air conditioning [HVAC] technologies using waste energy, e.g. from internal combustion engine
-
- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/62—Absorption based systems
- Y02B30/625—Absorption based systems combined with heat or power generation [CHP], e.g. trigeneration
Definitions
- the present invention relates to an absorption refrigerator. More specifically, it relates to an absorption refrigerator in which a so-called reverse cycle type and a parallel cycle type steam double effect absorption refrigerator are combined with a solution condensing boiler.
- the absorption refrigerator includes the absorption chiller / heater. Background technique.
- a steam double-effect absorption refrigerator as illustrated in FIG. 11 has been known.
- the absorbent dilute absorbent
- the absorbent whose concentration has been reduced by absorbing a large amount of refrigerant vapor in the absorber a is sent from the absorber a to the low-temperature heat exchanger b. After being heated by the low-temperature heat exchanger b, it is sent to the low-temperature regenerator c.
- the rare absorbing liquid is regenerated at a low temperature in the low-temperature regenerator c, releases a part of the absorbed refrigerant, and becomes higher in concentration to become an intermediate concentration absorbing liquid (intermediate absorbing liquid).
- the intermediate absorbent is sent from the low-temperature regenerator c to the high-temperature heat exchanger d, and is heated by the high-temperature heat exchanger d before being sent to the high-temperature regenerator e.
- the intermediate absorbing liquid is regenerated at a high temperature in the high-temperature regenerator e, releases a part of the absorbed refrigerant, and becomes higher in concentration to become a high-concentration absorbent (concentrated absorbing liquid). Then, the concentrated absorbent is returned to the heating side of the high-temperature heat exchanger d as a heating source for heating the intermediate absorbent, and further, the heated side of the low-temperature heat exchanger b is After being returned as a heating source for heating the rare absorbing solution, it is returned to the absorber a. This return The concentrated absorption liquid is sprayed in the absorber a and, while being cooled by the cooling water, absorbs the refrigerant vapor again to become the rare absorption liquid. In addition.
- the symbol f in the figure indicates a steam boiler, and the symbol g indicates a condenser.
- a steam-type double-effect absorption refrigerator as illustrated in Fig. 12 has been known.
- an absorbent (a rare absorbent) whose concentration has been reduced by absorbing a large amount of refrigerant vapor in the absorber a is sent from the absorber a to the low-temperature heat exchanger b, where it is supplied to the low-temperature heat exchanger b.
- the diluted absorption liquid is branched in two directions. One is fed to a low-temperature regenerator c via a medium-temperature heat exchanger h, and is regenerated at a low temperature in the low-temperature regenerator c. Is returned to the heating side.
- the other is sent to the high-temperature regenerator e via the high-temperature heat exchanger d, is regenerated at high temperature in the high-temperature regenerator e, and then passes through the heating side of the high-temperature heat exchanger d to the low-temperature heat exchanger b. Will be returned.
- high-temperature steam is supplied from the steam boiler f to the high-temperature regenerator e as a heating source.
- the intermediate absorbent is heated by the vapor to release the absorbed refrigerant, and the released refrigerant vapor is supplied to the low-temperature regenerator c. After being used as a heating source in the low-temperature regenerator c, it is returned to the condenser g. And condensed.
- the steam boiler f itself is large, which leads to an increase in the size of the absorption refrigerator as a whole. Moreover, in order to operate the steam boiler f, it is necessary to supply water in a system other than the absorption chiller system, collect the steam drain after heating, and inject chemicals. On the contrary, additional equipment for them is required, which contributes to the above-mentioned enlargement.
- the contribution of the steam boiler f to the absorption refrigerator is merely to supply a heating source, and is equivalent to the fuel consumption for combustion in the steam boiler f. It is hard to say that the effect has been sufficiently obtained.
- legal regulations also involve the inconvenience of requiring qualified personnel and inspections as handlers.
- the present invention has been made in view of the problems of the related art, and aims to reduce the fuel consumption per cooling output and save energy by fully utilizing the function of a boiler.
- An object of the present invention is to provide an absorption refrigerator capable of making the whole compact and easy handling. Disclosure of the invention
- the absorption liquid is supplied in order from the absorber to a low-temperature heat exchanger, a low-temperature regenerator, a high-temperature heat exchanger, a steam-heated high-temperature regenerator, the high-temperature heat exchanger, and a low-temperature heat exchange.
- a steam-type absorption refrigerator that circulates back to the absorber through a heat exchanger, wherein the solution-enrichment boiler is interposed between the high-temperature regenerator and the high-temperature heat exchanger to heat and concentrate the absorbing solution; Supply means for extracting part or all of the concentrated absorbent from the regenerator and supplying it to the solution-concentrating boiler, wherein the solution-concentrating boiler heats and absorbs the concentrated absorbent to the high-temperature heat exchanger. While being connected to the high-temperature heat exchanger so as to return to the And connected to the high-temperature regenerator to supply the refrigerant vapor evaporated from the heat source to the high-temperature regenerator as a heating source.
- the absorption liquid is sent from the absorber to the low-temperature heat exchanger, and then sent to the low-temperature regenerator via the medium-temperature heat exchanger.
- the absorbent regenerated in the low-temperature regenerator is returned to the heating side of the medium-temperature heat exchanger, while the absorbent regenerated in the high-temperature regenerator is absorbed.
- the liquid is returned to the heating side of the high-temperature heat exchanger, and the absorbing liquids from each of the medium-temperature heat exchanger and the high-temperature heat exchanger are combined and returned to the absorber via the heating side of the low-temperature heat exchanger.
- a solution absorption boiler interposed between the high-temperature regenerator and the high-temperature heat exchanger for heating and concentrating the absorption liquid; and a concentrated absorption from the high-temperature regenerator. Extract part or all of the solution and supply it to the solution concentration boiler.
- the solution concentrating boiler is connected to the high-temperature heat exchanger so that the heat-concentrated absorbent is returned to the heating side of the high-temperature heat exchanger, while the solution condensing boiler It is characterized in that it is connected to the high-temperature regenerator so that the refrigerant vapor evaporated from the liquid is supplied to the high-temperature regenerator as a heating source.
- the absorption liquid is sent from the absorber to the low-temperature heat exchanger, and then sent to the low-temperature regenerator, and the steam-heated high-temperature regeneration is performed through the high-temperature heat exchanger.
- a steam-type absorption refrigerator that circulates back to the absorber through the heating side of the above, and is provided between the high-temperature regenerator and the high-temperature heat exchanger to heat and concentrate the absorbed liquid.
- a supply means for extracting part or all of the concentrated absorption liquid from the high-temperature regenerator and supplying the extracted liquid to the solution-concentrating boiler was connected to the high-temperature heat exchanger so that it returned to the heating side.
- it is characterized in that it is connected to the high-temperature regenerator so that the refrigerant vapor evaporated from the absorbing liquid in the solution-concentrating boiler is supplied to the high-temperature regenerator as a heating source.
- the absorption refrigerator of the present invention is provided with a first heat exchanger using a return absorbing liquid returned from the outlet side of the solution concentration boiler to the high-temperature heat exchanger as a heating source, and a supply absorption supplied from the high-temperature regenerator.
- the liquid may be configured to exchange heat with the return absorbent in the first heat exchanger before being introduced into the solution concentration boiler.
- the absorption refrigerator of the present invention includes a second heat exchanger using a combustion exhaust gas of the solution condensing boiler as a heating source, and a supply absorbent supplied from a high temperature regenerator is supplied to the solution condensing boiler.
- the second heat exchanger may be configured to exchange heat with the combustion exhaust gas.
- the second heat exchanger is an economizer attached to the solution-concentrating boiler, and the supply and absorption liquid flows through the economizer. May be configured.
- the absorption liquid is provided between the low-temperature heat exchanger and the low-temperature regenerator, on the inlet side of the absorption liquid to the low-temperature regenerator,
- a second regenerator may be provided between the regenerator and the high-temperature regenerator and on the inlet side of the absorbent to the high-temperature regenerator, the auxiliary regenerator using the combustion exhaust gas from the solution-concentrating boiler as a heating source.
- the inlet side of the absorbent to the low-temperature regenerator between the medium-temperature heat exchanger and the low-temperature regenerator, and the high-temperature regenerator between the Z or high-temperature heat exchanger and the high-temperature regenerator.
- An auxiliary regenerator may be provided at the inlet side of the absorbing solution into the exhaust gas from the solution condensing boiler, using an exhaust gas from the solution condensing boiler as a heating source. Between the inlet side of the absorbent to the cryogenic regenerator, and Z or high temperature Between the heat exchanger and the high-temperature regenerator, on the inlet side of the absorbent to the high-temperature regenerator, there is an auxiliary regenerator that uses the combustion exhaust gas from the solution-concentrating boiler as a heating source. It may be provided.
- the third heat exchanger for heating the rare absorbing liquid which uses the refrigerant drain of the low-temperature regenerator as a heating source, is connected to the low-temperature heat exchanger in parallel or in the low-temperature heat exchanger. It may be arranged in a series on the outlet side of the absorbent in the exchanger.
- the fourth heat exchanger that heats the intermediate absorbent using the refrigerant drain of the high-temperature regenerator as a heating source is connected to the high-temperature heat exchanger in parallel or in a high-temperature heat exchanger. It may be arranged in a series on the outlet side of the absorbent in the exchanger.
- a part of the absorption liquid is supplied from the near side of the intermediate liquid supply means to the absorption liquid return line between the high temperature heat exchanger and the low temperature heat exchanger.
- the vino may be allowed to run.
- a plurality of combinations of the absorber and the evaporator are provided, and the cold water, the cooling water, and the absorbing liquid are supplied to the plurality of combinations in series.
- a plurality of combinations of an absorber and an evaporator are provided, and chilled water and an absorbing liquid are supplied to the plurality of combinations in series, and cooling water is supplied to the plurality of combinations in parallel. May be.
- the cooling water may flow from the condenser to the absorber.
- the solution concentration boiler is preferably a once-through boiler.
- FIG. 1 is a schematic diagram of Embodiment 1 of the present invention.
- FIG. 2 is a schematic diagram of Embodiment 2 of the present invention.
- FIG. 3 is a schematic diagram of Embodiment 3 of the present invention.
- FIG. 4 is a schematic diagram of Embodiment 4 of the present invention.
- FIG. 5 is a schematic diagram of Embodiment 5 of the present invention.
- FIG. 6 is a schematic diagram of Embodiment 6 of the present invention.
- FIG. 7 is a schematic diagram of a main part of Embodiments 7 and 8 of the present invention.
- FIG. 8 is a schematic diagram of a main part of Embodiments 9 and 10 of the present invention.
- FIG. 9 is a schematic diagram of Example 11 of the present invention.
- FIG. 10 is a schematic diagram of Embodiment 12 of the present invention.
- Fig. 11 is a schematic diagram of a conventional reverse cycle absorption refrigerator.
- Fig. 12 is a schematic view of a conventional parallel cycle type absorption refrigerator.
- the absorbing liquid is supplied, and the boiler is directly used for the concentration of the absorbing liquid to reduce the fuel consumption per cooling output.
- the basic principle is to use the refrigerant vapor released as a heating source for a high-temperature regenerator or the like.
- the absorption liquid is supplied in the order from the absorber to a low-temperature heat exchanger, a low-temperature regenerator, a high-temperature heat exchanger, a steam-heated high-temperature regenerator, the high-temperature heat exchanger, and the low-temperature heat
- a solution-concentration boiler that is interposed between the high-temperature regenerator and the high-temperature heat exchanger and heats and concentrates the absorbent, assuming a steam-type absorption refrigerator that circulates back to the absorber through an exchanger.
- a supply means for example, a pump, for extracting a part or all of the concentrated absorbing solution from the high-temperature regenerator and supplying the solution to the solution-concentrating boiler, and heating the solution-concentrating boiler. While connected to the high-temperature heat exchanger to return the concentrated absorbent to the heating side of the high-temperature heat exchanger, The high-temperature regenerator is connected to the high-temperature regenerator so that the refrigerant vapor evaporated from the absorbing solution in the solution-concentrating boiler is supplied to the high-temperature regenerator as a heating source.
- a supply means for example, a pump, for extracting a part or all of the concentrated absorbing solution from the high-temperature regenerator and supplying the solution to the solution-concentrating boiler, and heating the solution-concentrating boiler.
- the second embodiment of the present invention relates to a path for supplying an absorbing liquid from an absorber to a low-temperature heat exchanger, and then to a medium-temperature heat exchanger and then to a low-temperature regenerator, and a steam for passing through the high-temperature heat exchanger.
- the absorption liquid regenerated in the low-temperature regenerator is returned to the heating side of the medium-temperature heat exchanger while the absorption liquid regenerated in the high-temperature regenerator is branched into a path for feeding to the heating high-temperature regenerator.
- a solution concentration boiler interposed between the high-temperature regenerator and the high-temperature heat exchanger for heating and condensing the absorbent, and a solution condensing boiler from the high-temperature regenerator Extract part or all of the solution into the solution boiler Sheet feeding means shall be provided for example a pump.
- the solution-concentrating boiler is connected to the high-temperature heat exchanger so as to return the heat-concentrated absorbent to the heating side of the high-temperature heat exchanger, while the solution-concentrating boiler is evaporated from the absorbent in the solution-concentrating boiler. It is connected to the high-temperature regenerator to supply the refrigerant vapor to the high-temperature regenerator as a steam heating source.
- the third embodiment of the present invention is a steam-heated high-temperature high-temperature heat exchanger via a high-temperature heat exchanger and a path for feeding the absorbent from the absorber to the low-temperature heat exchanger and then to the low-temperature regenerator.
- the absorption liquid regenerated in the low-temperature regenerator and the absorption liquid regenerated in the high-temperature regenerator and passed through the high-temperature heat exchanger are merged, and the low-temperature heat exchange is performed.
- a steam-type absorption chiller that circulates back to the absorber via the heating side of the heat exchanger, it is interposed between the high-temperature regenerator and the high-temperature heat exchanger to heat and concentrate the absorbent.
- a supply means for example, a pump, for extracting a part or all of the concentrated absorbing solution from the high-temperature regenerator and supplying it to the solution-concentrating boiler.
- the solution-concentrating boiler is connected to the high-temperature heat exchanger so that the heat-concentrated absorbent is returned to the heating side of the high-temperature heat exchanger.
- the high-temperature regenerator is connected to the regenerator so as to be supplied as a steam heating source.
- the “solution enrichment boiler” has a function of heating the concentrated absorbent by burning fuel, a function of discharging the refrigerant absorbed by the heating as refrigerant vapor, and Any material having a function of withstanding the internal pressure during heating of the concentrated absorbing solution may be used.
- the concentrated absorbent which has been regenerated at a high temperature by the high-temperature regenerator and further concentrated from the intermediate absorbent, is sent to the solution-concentrating boiler by the pump, and It is further concentrated by la. Then, the highly concentrated absorbent, that is, the highly heated absorbent, is returned as a heating source of the high-temperature heat exchanger and then as a heating source of the low-temperature heat exchanger.
- the solution concentration boiler when the absorption liquid is concentrated, the refrigerant is released as refrigerant vapor, and the refrigerant vapor is supplied as a heating source of the high-temperature regenerator. You. As a result, high-temperature regeneration in the high-temperature regenerator is performed more efficiently.
- the present invention eliminates the need for water supply, chemical injection, steam drain recovery, etc. as in the conventional steam boiler, so that equipment corresponding to these is also unnecessary, and the entire absorption refrigerator can be made compact. In addition to this, the energy required for them is not required, and greater energy and resource savings can be achieved.
- the solution in order to improve the thermal efficiency, mainly the solution
- the following configuration may be added in order to improve the boiler efficiency of the enrichment boiler.
- the first heat exchanger that exchanges heat between the supply absorbent supplied from the high-temperature regenerator to the solution condensing boiler and the return absorbent returned to the high-temperature heat exchanger from the solution condensing boiler May be provided.
- the supplied absorbent is heated by the heat from the return absorbent, which is heated in the first heat exchanger, and the heated supplied absorbent is introduced into the solution condensing boiler. Therefore, the boiler efficiency can be increased as compared with the case without the heat exchanger.
- a second heat exchanger for mutually exchanging heat between the supply-absorbed liquid supplied from the high-temperature regenerator to the solution-concentrating boiler and the combustion exhaust gas discharged from the solution-concentrating boiler is provided. You may do so.
- the second heat exchanger may be constituted by, for example, an economizer attached to a solution concentration boiler, and the supply and absorption liquid may be allowed to flow through the economizer. . Even in the case where such a second heat exchanger is provided, the supply absorption liquid heated in the second heat exchanger is introduced into the solution concentration boiler. (2) Boiler efficiency can be increased compared to the case without a heat exchanger. In addition, in this case, since the temperature of the supply and absorption liquid is raised using the combustion exhaust gas of the solution-concentrating boiler itself as a heat source, it is possible to save energy and resources.
- the following configuration may be added mainly from the viewpoint of energy saving.
- the position of the absorption liquid from the low-temperature heat exchanger to the low-temperature regenerator on the inlet side to the low-temperature regenerator, and Z or high-temperature heat An auxiliary regenerator (heat exchanger) is installed between the heat exchanger and the high-temperature regenerator, at the inlet side of the absorbent to the high-temperature regenerator, using the combustion exhaust gas of the solution condensing boiler as a heat source. You may.
- the auxiliary regenerator may be attached to a position on the inlet side of the absorbing liquid to the high-temperature regenerator between the units.
- the heating heat per cooling output which needs to be heated from the outside, can be partially covered by the combustion exhaust gas, so that the heating heat can be reduced as compared with the case without the auxiliary regenerator. And energy saving can be achieved.
- a third heat exchanger that heats the rare absorbent using the refrigerant drain of the low-temperature regenerator as a heating source is connected to the low-temperature heat exchanger in parallel or the rare-absorbent liquid in the low-temperature heat exchanger. May be attached to the series at the exit side of the vehicle.
- the heating heat is reduced as compared with the case where the third heat exchanger is not provided. And energy savings will be achieved.
- a fourth heat exchanger that heats the intermediate absorbent using the refrigerant drain of the high-temperature regenerator as a heating source is connected to the high-temperature heat exchanger in parallel or in the middle of the high-temperature heat exchanger.
- a series may be provided on the outlet side of the absorbent.
- a part of the heating heat per cooling output that needs to be heated from the outside can be covered by the refrigerant drain, so that the heating heat is reduced as compared with the case where the fourth heat exchanger is not provided. And energy conservation will be achieved.
- a part of the intermediate absorbing liquid is supplied from the near side of the intermediate liquid pump (intermediate liquid supply means) to the space between the high-temperature heat exchanger and the low-temperature heat exchanger. It may be bypassed to the absorbent return line.
- the amount of lithium bromide supplied to the higher temperature side can be reduced, the amount of heat loss generated at the higher temperature side is reduced, and the thermal efficiency is improved. Also, the prevention of the cavitation of the dilute pump and the reduction of noise are achieved.
- a plurality of combinations of the absorber and the evaporator may be provided, and the cold water, the cooling water and the absorbing liquid may be supplied to the plurality of combinations in series, or A plurality of combinations of the above and the evaporator may be provided, and the cold water and the absorbing liquid may be supplied to the plurality of combinations in series, and the cooling water may be supplied to the plurality of combinations in parallel.
- the internal pressure of the absorber and the internal pressure of the evaporator can be changed step by step for each group, so that it can be used in the absorber concentration region which is thinner than before.
- efficiency can be improved and high-temperature regenerators and heat exchangers can be significantly reduced in size.
- the size of the absorption refrigerator can be reduced.
- cooling water may flow from the condenser to the absorber.
- the rise in temperature and pressure in the high-temperature regeneration system or the boiler system which is a drawback of the absorption refrigerator having a plurality of regenerators, can be suppressed relatively small. That is, the temperature and pressure of the condenser decrease, thereby lowering the temperature of the low-temperature regenerator, thereby lowering the temperature of the high-temperature regenerator, thereby lowering the temperature and pressure of the boiler system.
- a once-through boiler may be used as the solution-concentrating boiler.
- the amount of the absorbing solution held in the boiler is reduced, the total amount of the absorbing solution is reduced, and the lithium in the absorbing solution is expensive because of this. It is also possible to reduce costs.
- Et al is a small boiler when heat transfer surface the product is 1 0 m 2 or less, since it is a simple V o la in the following cases 5 m, qualified and establishment permit upon handling, respectively it unnecessary
- regulations such as inspections will be eased.
- FIG. 1 shows an absorption refrigerator according to Embodiment 1 of the present invention.
- Example 1 Are: absorber 1, pump (dilute pump) 2, low-temperature heat exchanger 3, low-temperature regenerator 4, pump (intermediate liquid pump) 5, high-temperature heat exchanger 6, high-temperature regenerator 7, condenser 8 and
- This is a combination of a reverse-cycle double-effect absorption refrigerator with an evaporator 9 and a once-through boiler 10 as a solution-concentrating boiler. That is, in the first embodiment, the double-effect absorption refrigerator and the solution-concentrating boiler 10 are integrated in a state where they are incorporated in a refrigeration cycle using an absorbent.
- the auxiliary regenerators 11 and 12 in addition to the solution boiler 10, the auxiliary regenerators 11 and 12, the pump (concentrated liquid pump) 13, and the additional heat as the first heat exchanger
- An exchanger 14 and an economizer 15 as a second heat exchanger are added.
- the arrow attached to the solid line indicates the flow direction of the absorbent or the refrigerant
- the arrow attached to the broken line indicates the flow direction of the refrigerant vapor.
- the circulation cycle of the absorbing solution will be described in order.
- the diluted absorbing solution whose concentration has been reduced by absorbing a large amount of refrigerant vapor in the absorbing device 1 is discharged from the absorbing device 1 by the diluted solution pump 2. It is sent to the low-temperature heat exchanger 3, heated by the low-temperature heat exchanger 3, and then sent to the low-temperature regenerator 4.
- This rare absorbing solution is further heated by an auxiliary regenerator 11 described later before being introduced into the low-temperature regenerator 4, and introduced into the low-temperature regenerator 4 in this heated state. Is being done.
- the rare absorbing liquid is regenerated at a low temperature in the low-temperature regenerator 4, and a part of the absorbed refrigerant is released and the concentration is increased by that amount to become an intermediate-absorbing liquid having an intermediate concentration.
- the intermediate absorbent is sent from the low-temperature regenerator 4 to the high-temperature heat exchanger 6 by the intermediate absorbent pump 5, and is heated by the high-temperature heat exchanger 6 before being regenerated at high temperature.
- the intermediate absorbent is regenerated at a high temperature in the high-temperature regenerator 7 and releases a part of the absorbed refrigerant to further increase the concentration to form a high-concentration concentrated absorbent. Become.
- the concentrated absorption liquid is sent from the high temperature regenerator 7 to the once-through boiler 10 by the concentrated liquid pump 13, and is further heated by the once-through boiler 10 to be absorbed.
- the discharged refrigerant is released as refrigerant vapor, resulting in a more concentrated highly concentrated absorbent.
- the concentrated absorption liquid is first heated by the additional heat exchanger 14, and then heated by the economizer 15. ing. That is, in the additional heat exchanger 14, after the concentrated absorption liquid supplied by the concentrated absorption liquid pump 13 is concentrated by the once-through boiler 10, the high-temperature heat exchanger 6 Heat exchange is performed with the highly concentrated absorption liquid returned to the furnace, and heating is performed. Further, in the economizer 15, the concentrated absorbent heated by the additional heat exchanger 14 is further exchanged with the combustion exhaust gas discharged from the once-through boiler 10 and further heated. It will be.
- the highly concentrated absorbing solution highly concentrated by the once-through boiler 10 passes through the heating side of the additional heat exchanger 14 and then passes through the heating side of the high-temperature heat exchanger 6 to be subjected to the intermediate absorption.
- the liquid is heated, and then passed through the heating side of the low-temperature heat exchanger 3 to heat the diluted absorption liquid, and then returned to the absorber 1.
- the returned highly concentrated absorbent is sprayed and cooled by the cooling water, so that a large amount of refrigerant vapor supplied from the evaporator 9 is absorbed and diluted again. It becomes an absorbing solution.
- the refrigerant vapor evaporated in the once-through boiler 10 is sent as a vapor heating source to the high-temperature regenerator 7 through the pipe 16 and used for high-temperature regeneration of the intermediate absorbent in the high-temperature regenerator 7. Then, the refrigerant vapor used in the high-temperature regenerator 7 is joined to the pipe 17. Further, the refrigerant vapor released by the high-temperature regenerator 7 is sent to the low-temperature regenerator 4 as a heat source of caro. Then, the refrigerant vapor used for this heating is combined with the pipe 19 and sent to the condenser 8, where it is condensed by the cooling water to become a refrigerant.
- the flue gas discharged from the once-through boiler 10 passes through the above-mentioned economizer 15 and is then sent to two auxiliary regenerators 11 and 12 as a heating source.
- the combustion exhaust gas is supplied to a series of auxiliary regenerators 12 first and then to the auxiliary regenerator 11.
- the combustion exhaust gas may be supplied to the auxiliary regenerators 11 and 12 in parallel.
- FIG. 2 shows an absorption refrigerator according to a second embodiment of the present invention.
- an absorber 21 a pump (a rare absorbing solution pump) 22, and a low-temperature heat exchanger
- Double-effect absorption of parallel cycle type This is a combination of a once-through boiler 30 as a solution concentration boiler and a refrigerator. That is, in the present embodiment, the double effect absorption refrigerator and the solution concentrating boiler 30 are integrated in a state where they are incorporated in a cooling cycle using an absorbent. In this embodiment, in addition to the solution-concentrating boiler 30, an auxiliary regenerator 31,
- FIG. 2 the arrow attached to the solid line indicates the flow direction of the absorbent or the refrigerant, and the arrow attached to the broken line indicates the direction of the refrigerant vapor.
- the diluted absorbent whose concentration has been reduced by absorbing a large amount of refrigerant vapor in the absorber 21 is sent from the absorber 21 to the low-temperature heat exchanger 23 by the diluted absorbent pump 22. After being heated by the low-temperature heat exchanger 23, it is branched into the low-temperature regenerator 25 and the high-temperature regenerator 27.
- the diluted absorption liquid branched to the low-temperature regenerator 25 is fed to the low-temperature regenerator 25 after being heated by the medium-temperature heat exchanger 24.
- This rare absorbing solution After leaving the intermediate-temperature heat exchanger 24 and before being introduced into the low-temperature regenerator 25, it is further heated by an auxiliary regenerator 31 described later, and in this heated state, the low-temperature regenerator It is being introduced within 25.
- the rare absorbing liquid is regenerated at a low temperature in the low-temperature regenerator 25, so that a part of the absorbed refrigerant is released and the concentration is increased by that amount to become an intermediate-concentration intermediate absorbing liquid. .
- the intermediate absorbent exits the low-temperature regenerator 25 and is returned to the heating side of the intermediate-temperature heat exchanger 24.
- the heat is returned to the return pipe 36 to the heating side of the low-temperature heat exchanger 23.
- the diluted absorbent branched to the high-temperature regenerator 27 is heated by the high-temperature heat exchanger 26 and then sent to the high-temperature regenerator 27.
- the diluted absorbent is further heated by an auxiliary regenerator 32 described later before leaving the high-temperature heat exchanger 26 and before being introduced into the high-temperature regenerator 27.
- This heated state is introduced into the high-temperature regenerator 27.
- the rare absorbing liquid is regenerated at a high temperature in the high-temperature regenerator 27, thereby releasing a part of the absorbed refrigerant and having a considerably higher concentration.
- the concentrated absorbent is sent from the high temperature regenerator 27 to the once-through boiler 30 by the concentrated absorbent pump 33, and further heated by the once-through boiler 30.
- the absorbed refrigerant is released as refrigerant vapor and becomes a more concentrated highly concentrated absorbent.
- the concentrated absorption liquid is first heated by the additional heat exchanger 34, and then heated by the economizer 35. I'm wearing In the additional heat exchanger 34, the concentrated absorbent fed by the concentrated absorbent pump 33 is concentrated by the once-through boiler 30 and then concentrated in the high-temperature heat exchanger 26. Heat is exchanged with the returned concentrated absorbent and heated. Further, in the economizer 35, the concentrated absorbent heated by the additional heat exchanger 34 is heat-exchanged with the combustion exhaust gas discharged from the once-through boiler 30. It will be heated to
- the highly concentrated absorbent highly concentrated by the once-through boiler 30 is passed through the heating side of the additional heat exchanger 34, and then is first passed through the heating side of the high-temperature heat exchanger 26.
- the diluted absorption liquid is heated and then mixed with the intermediate absorption liquid from the low-temperature regenerator 25 in the return pipe 36.
- the high-concentration absorption liquid that has merged with the intermediate absorption liquid is passed through the heating side of the low-temperature heat exchanger 23 to heat the diluted absorption liquid, and then returned to the absorber 21.
- the returned high-concentration absorption liquid and intermediate absorption liquid are sprayed and cooled by cooling water, so that the refrigerant vapor supplied from the evaporator 29 is discharged. It absorbs a large amount and becomes a diluted absorption liquid again.
- the refrigerant vapor evaporated in the once-through boiler 30 is sent through a pipe 37 to a high-temperature regenerator 27 as a vapor heating source, and is used for high-temperature regeneration of the intermediate absorbent in the high-temperature regenerator 27. Is done.
- the refrigerant vapor that has been used in the high-temperature regenerator 27 is merged into the pipe 38, and the low-temperature refrigerant vapor is released from the high-temperature regenerator 27 in the pipe 38. It is sent to the regenerator 25 as a heating source.
- this refrigerant vapor is sent to the condenser 28 and condensed by the cooling water to become a refrigerant.
- the flue gas discharged from the once-through boiler 30 is passed through the above-mentioned economizer 35 and then sent to two auxiliary regenerators 31 and 32 as a heating source.
- the combustion exhaust gas is supplied to the series firstly to the auxiliary regenerator 32 and then to the auxiliary regenerator 31.
- the combustion exhaust gas may be supplied to the two auxiliary regenerators 31 and 32 in parallel.
- FIG. 3 shows an absorption refrigerator according to a third embodiment of the present invention.
- the third embodiment is a modification of the second embodiment.Specifically, the medium-temperature heat exchanger 24 provided on the inlet side of the low-temperature regenerator 25 is eliminated. Things.
- the remaining configuration of the third embodiment is the same as that of the second embodiment.
- the thermal efficiency is reduced by the absence of the intermediate temperature heat exchanger 24, but the configuration is simplified by that much, and the cost of the absorption refrigerator is reduced.
- the fourth embodiment of the present invention is a modification of the first embodiment.
- a rare absorbing liquid is supplied to the low-temperature heat exchanger 3 and the parallel by the refrigerant drain from the low-temperature regenerator 4.
- a second low-temperature heat exchanger 51 for heating the intermediate absorption liquid is provided, and a second high-temperature heat exchanger 6 and the second high-temperature heat exchanger are heated in parallel by the refrigerant drain from the high-temperature regenerator 7. It is provided with a heat exchanger 52.
- the heat of the refrigerant drain which is cooled and radiated by the cooling water, is effectively recovered for the heating of the absorbing liquid, and the once-through boiler is used.
- the effect is that energy can be saved by reducing the amount of heating.
- the second low-temperature heat exchanger 51 and the second high-temperature heat exchanger 52 are disposed in parallel with the low-temperature heat exchanger 3 and the high-temperature heat exchanger 6, respectively.
- the low-temperature heat exchanger 51 may be arranged in series with the low-temperature heat exchanger 3 at the outlet side of the diluted absorption liquid of the low-temperature heat exchanger 3, and the second high-temperature heat exchanger 52
- the high-temperature heat exchanger 6 may be arranged in series with the high-temperature heat exchanger 6 on the intermediate liquid outlet side.
- the fifth embodiment of the present invention is a modification of the third embodiment.
- the fifth embodiment of the present invention includes a cold drain from the low-temperature regenerator 25 and the low-temperature heat exchanger 23 and the parallel.
- a second low-temperature heat exchanger 61 for heating the more rare absorbing liquid is provided, and the intermediate absorbing liquid is supplied to the high-temperature heat exchanger 26 and the parallel by the refrigerant drain from the high-temperature regenerator 27.
- a second high-temperature heat exchanger 62 for heating is additionally provided.
- the heat of the refrigerant drain which is cooled and radiated by the cooling water, is effectively recovered for the heating of the absorbing liquid, and the once-through boiler is used.
- the effect is that energy can be saved by reducing the amount of heating.
- the second low-temperature heat exchanger 61 and the second high-temperature heat exchanger 62 are disposed in parallel with the low-temperature heat exchanger 23 and the high-temperature heat exchanger 26, respectively.
- the second low-temperature heat exchanger 61 may be disposed in series with the low-temperature heat exchanger 23 on the diluted absorption liquid outlet side of the low-temperature heat exchanger 23, and the second high-temperature heat exchange
- the heat exchanger 62 may be disposed in series with the high-temperature heat exchanger 26 on the intermediate liquid outlet side of the high-temperature heat exchanger 26.
- the sixth embodiment of the present invention is a modification of the first embodiment.
- a part of the intermediate absorbent is fed to the high-temperature regenerator 7 by the intermediate liquid pump 5.
- the remaining part is branched from the near side of the suction side of the intermediate liquid pump 5 by a pipe 43 so as to be directly fed to the heating side of the low-temperature heat exchanger 3. That is, the inlet side of the intermediate liquid pump 5 communicates with the inlet side of the low-temperature heat exchanger 3 on the heating side by the pipe 43.
- the flow rate control of the branch portion may be performed by, for example, the orifice 44.
- the sixth embodiment by adopting such a configuration, the amount of the absorbing liquid supplied to the high temperature side is reduced, the amount of heat loss generated on the high temperature side is reduced, and the thermal efficiency is improved. In addition, the effect of preventing the cavitation of the diluted liquid pump can be obtained.
- the seventh embodiment of the present invention is a modification of the first embodiment.
- the combination of the absorber 1 and the evaporator 9 is two, that is, the absorber 1 and the evaporator 9 are combined.
- the evaporator 9 is composed of a first block A consisting of a first absorber 1A and a first evaporator 9A, and a pair of a second absorber 1B and a second evaporator 9B.
- the second block B is composed of the second block B, and the cooling water and the cooling water are supplied from the second block B to the first block A in series, while the highly concentrated absorbent is supplied. It is supplied from the first block A to the second block B in series.
- the pressure in the absorber 1 and the pressure in the evaporator 9 can be changed step by step for each block.
- the embodiment of the present invention is a modification of the embodiment 2, and as shown in FIG. 7, the combination of the absorber 21 and the evaporator 29 is made into two sets, that is, the absorber 21 and the evaporator 29 are combined.
- a first block A consisting of a pair of a first absorber 21 and a first evaporator 29A
- a second block A consisting of a second absorber 21B and a second evaporator 29B. 2 block B, and then supply cold water and cooling water from the second block B to the first block A in series, while supplying the highly concentrated absorbent to the first block A.
- Block A supplies the second block B to the series.
- the pressure in the absorber 21 and the pressure in the evaporator 29 can be changed step by step for each block. Since the absorption solution can be used in a wide concentration range, the range of use can be extended to a dilute concentration region, and the effect of reducing the circulation amount of the absorption solution and effectively utilizing a low-temperature heat source can be obtained.
- the ninth embodiment of the present invention is a modification of the seventh embodiment.
- the combination of the absorber 1 and the evaporator 9 is divided into two sets, that is, the absorber 1 and the evaporator.
- 9 is a first block A consisting of a pair of a first absorber 1A and a first evaporator 9A, and a second block consisting of a pair of a second absorber 1B and a second evaporator 9B.
- Block B, and cool water is supplied to the second block B From the first block A to the second block B, and the cooling water from the first block A to the second block B, and cooling water to the first block. It is supplied in parallel to the first block A and the second block B.
- the pressure in the absorber 1 and the pressure in the evaporator 9 can be changed step by step for each block. Since it can be used in a wide concentration range, the range of use can be extended to a dilute concentration region, and the effect of reducing the amount of circulating absorbent and effectively using a low-temperature heat source can be obtained.
- the tenth embodiment of the present invention is a modification of the eighth embodiment, and as shown in FIG. 8, the combination of the absorber 21 and the evaporator 29 is divided into two sets.
- the absorber 21 and the evaporator 29 are combined with the first block A, which is a set of the first absorber 21A and the first evaporator 29A, and the second absorber 21B and the second evaporator.
- a second block B composed of a pair with a heater 29B.
- Cold water is supplied from the second block B to the first block A in series, and The concentrated liquid is supplied from the first block A to the second block B to the series, and the cooling water is supplied to the first block A and the second block B in parallel. That is what we do.
- the pressure in the absorber 21 and the pressure in the evaporator 29 can be changed step by step for each block.
- the absorbent can be used in a wide concentration range, the usable range can be extended to a dilute concentration region, and the effect of reducing the circulation amount of the absorbent and effectively utilizing the low-temperature heat source can be obtained.
- Embodiment 11 of the present invention is a modification of Embodiment 1, in which cooling water flows from a condenser 8 to an absorber 1 in a series, as shown in FIG. That's what it looks like.
- Example 11 1 having such a configuration, the temperature and pressure of the condenser 8 were reduced by first passing low-temperature cooling water to the condenser 8. As a result, the temperature and pressure of the low-temperature regenerator 4 decrease, and the temperature and pressure of the high-temperature regenerator 7 decrease, thereby lowering the temperature and pressure of the boiler system. The effect of effective use is obtained.
- the embodiment 12 of the present invention is a modification of the embodiment 2 and, as shown in FIG. 10, a series of cooling water is condensed from the condenser 28 to the absorber 21 as shown in FIG. It is made to flow to the.
- the temperature and the pressure of the condenser 28 are reduced by adopting such a configuration, and by passing the low-temperature cooling water to the condenser 28 first.
- the temperature and pressure of the low-temperature regenerator 25 decrease, and the temperature and pressure of the high-temperature regenerator 27 decrease, thereby lowering the temperature and pressure of the boiler system.
- the effect of the effective use of is obtained.
- Example 13 of the present invention is a modification of Example 1 in which a part of the concentrated absorbent is fed to a once-through boiler 10 and the remaining part is connected to a pipe 18 as shown by a dashed line in FIG. Therefore, the high-temperature heat exchanger 6 is branched so as to be fed to the heating side. That is, the outlet of the high-temperature regenerator 7 and the inlet of the high-temperature heat exchanger 6 on the heating side are connected by the pipe 18.
- well-known means such as a flow control valve, may be adopted for the flow control or the like of the branch portion.
- Example 13 by adopting such a configuration, the amount of lithium bromide supplied to the once-through boiler can be reduced, so that the heat loss generated on the boiler side is reduced. This leads to the effect of reducing energy consumption and, consequently, saving energy by reducing the amount of heating.
- Example 14 of the present invention is a modification of Example 2, in which a part of the concentrated absorbent is fed to a once-through boiler 30 as shown by a dashed line in FIG.
- the remaining part is branched by a pipe 39 so as to be fed to the high-temperature heat exchanger 26 to the heating side. That is, the pipe 39 connects the outlet side of the high-temperature regenerator 27 to the heating-side inlet side of the high-temperature heat exchanger 26.
- the flow rate control or the like of the branching section may employ a known means such as a flow control valve.
- Example 14 by adopting such a configuration, the amount of lithium bromide supplied to the once-through boiler can be reduced, and the heat loss generated on the boiler side can be reduced. This has the effect of reducing energy consumption and, consequently, saving energy by reducing the amount of heating.
- the present invention has been described based on the embodiments and the examples. However, the present invention is not limited to the embodiments and the examples, and various modifications are possible.
- the combination of the absorber 1 and the evaporator 9 is two, but may be three or more.
- the absorption refrigerator of the present invention by integrating the absorption refrigerator with the solution concentration boiler, the fuel consumption per cooling output as a whole can be reduced. As a result, it is possible to save energy and resources, and at the same time, to make the entire absorption refrigerator compact. The effect is obtained.
- the supply absorption liquid is supplied to the first heat exchanger using the product (highly concentrated absorption liquid) from the solution concentration boiler as a heat source,
- the second heat exchangers that use the boiler emissions (combustion exhaust gas) as a heat source, it is possible to increase boiler efficiency. It also has the advantage of achieving greater energy and resource savings.
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- Engineering & Computer Science (AREA)
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- Mechanical Engineering (AREA)
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- General Engineering & Computer Science (AREA)
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Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/763,628 US6536229B1 (en) | 2000-08-29 | 2000-08-29 | Absorption refrigerator |
PCT/JP2000/005839 WO2002018849A1 (fr) | 2000-08-29 | 2000-08-29 | Systeme de refrigeration par absorption |
EP00955105A EP1348919A4 (en) | 2000-08-29 | 2000-08-29 | ABSORPTION CHILLER |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2000/005839 WO2002018849A1 (fr) | 2000-08-29 | 2000-08-29 | Systeme de refrigeration par absorption |
Publications (1)
Publication Number | Publication Date |
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WO2002018849A1 true WO2002018849A1 (fr) | 2002-03-07 |
Family
ID=11736405
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Application Number | Title | Priority Date | Filing Date |
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PCT/JP2000/005839 WO2002018849A1 (fr) | 2000-08-29 | 2000-08-29 | Systeme de refrigeration par absorption |
Country Status (3)
Country | Link |
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US (1) | US6536229B1 (ja) |
EP (1) | EP1348919A4 (ja) |
WO (1) | WO2002018849A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6536229B1 (en) | 2000-08-29 | 2003-03-25 | Kawasaki Thermal Engineering Co., Ltd. | Absorption refrigerator |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1548378A4 (en) * | 2002-09-26 | 2012-09-19 | Ebara Corp | ABSORPTION REFRIGERATION MACHINE |
WO2007133201A2 (en) * | 2006-05-12 | 2007-11-22 | Utc Power Corporation | Dual gas and hot liquid absorption chiller assembly |
IL177020A0 (en) | 2006-07-23 | 2006-12-10 | Totec Ltd Top Technologies | Absorption cooling system |
IL177021A0 (en) * | 2006-07-23 | 2006-12-10 | Totec Ltd Top Technologies | Working fluids for an absorption cooling system |
WO2008109718A1 (en) * | 2007-03-07 | 2008-09-12 | University Of New Orleans Research & Technology Foundation | Integrated cooling, heating, and power systems |
CN101324384A (zh) * | 2008-07-25 | 2008-12-17 | 李华玉 | 在第一类吸收式热泵上增加相邻高温供热端的方法 |
CN101504217A (zh) * | 2009-02-27 | 2009-08-12 | 李华玉 | 一种回热式发生-吸收体系与高温型第二类吸收式热泵 |
CN101532748A (zh) * | 2009-04-14 | 2009-09-16 | 李华玉 | 一种提高热泵供热温度的方法与高温第二类吸收式热泵 |
CN101995112B (zh) * | 2010-11-24 | 2012-07-18 | 浙江大学 | 一种高效gax吸收式制冷装置 |
EP2549205A3 (en) * | 2011-06-24 | 2015-08-05 | Thermax Limited | Triple-effect vapor absorption refrigeration system |
WO2013134553A1 (en) * | 2012-03-09 | 2013-09-12 | Bluelagoon Technologies Ltd | Apparatus and method for vapor driven absorption heat pumps and absorption heat transformer with applications |
CN102679615B (zh) * | 2012-05-04 | 2014-09-03 | 李华玉 | 分段回热第三类吸收式热泵 |
CN104034083A (zh) * | 2014-06-23 | 2014-09-10 | 周永奎 | 一种自驱动热压缩式热泵制冷方法及其装置 |
KR102292398B1 (ko) * | 2020-01-15 | 2021-08-20 | 엘지전자 주식회사 | 냉동기 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06257878A (ja) * | 1993-03-09 | 1994-09-16 | Kawaju Reinetsu Kogyo Kk | 低温再生器と排熱回収用低温再生器とを併用した吸収冷凍機・冷温水機 |
JP2000154945A (ja) * | 1998-11-19 | 2000-06-06 | Ebara Corp | 三重効用吸収冷凍機 |
JP2000154946A (ja) * | 1998-11-19 | 2000-06-06 | Ebara Corp | 三重効用吸収冷凍機 |
JP2000205691A (ja) * | 1999-01-06 | 2000-07-28 | Kawasaki Thermal Engineering Co Ltd | 吸収冷凍機 |
JP2000249422A (ja) * | 1998-12-28 | 2000-09-14 | Kawasaki Thermal Engineering Co Ltd | 吸収冷凍機 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3796045A (en) * | 1971-07-15 | 1974-03-12 | Turbo Dev Inc | Method and apparatus for increasing power output and/or thermal efficiency of a gas turbine power plant |
US4009575A (en) * | 1975-05-12 | 1977-03-01 | said Thomas L. Hartman, Jr. | Multi-use absorption/regeneration power cycle |
FR2473032A1 (fr) * | 1980-01-07 | 1981-07-10 | Banquy David | Procede de production d'ammoniac et du gaz de synthese correspondant |
JPS5886357A (ja) * | 1981-11-18 | 1983-05-23 | 株式会社日立製作所 | 太陽熱利用冷暖房方法とその装置 |
JP2968079B2 (ja) * | 1991-03-29 | 1999-10-25 | 株式会社日立製作所 | マルチタイプ吸収式空調システム |
WO1993011393A1 (en) * | 1991-11-27 | 1993-06-10 | Rocky Research | Improved triple effect absorption cycle apparatus |
US5964103A (en) * | 1995-10-06 | 1999-10-12 | Hitachi, Ltd. | Absorption refrigerator and production method thereof |
JP3593268B2 (ja) * | 1997-10-24 | 2004-11-24 | 荏原冷熱システム株式会社 | 吸収式冷凍機及びその初期防食皮膜形成方法 |
WO2002018849A1 (fr) | 2000-08-29 | 2002-03-07 | Kawajureinetsukougyo K.K. | Systeme de refrigeration par absorption |
-
2000
- 2000-08-29 WO PCT/JP2000/005839 patent/WO2002018849A1/ja active Application Filing
- 2000-08-29 US US09/763,628 patent/US6536229B1/en not_active Expired - Lifetime
- 2000-08-29 EP EP00955105A patent/EP1348919A4/en not_active Withdrawn
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06257878A (ja) * | 1993-03-09 | 1994-09-16 | Kawaju Reinetsu Kogyo Kk | 低温再生器と排熱回収用低温再生器とを併用した吸収冷凍機・冷温水機 |
JP2000154945A (ja) * | 1998-11-19 | 2000-06-06 | Ebara Corp | 三重効用吸収冷凍機 |
JP2000154946A (ja) * | 1998-11-19 | 2000-06-06 | Ebara Corp | 三重効用吸収冷凍機 |
JP2000249422A (ja) * | 1998-12-28 | 2000-09-14 | Kawasaki Thermal Engineering Co Ltd | 吸収冷凍機 |
JP2000205691A (ja) * | 1999-01-06 | 2000-07-28 | Kawasaki Thermal Engineering Co Ltd | 吸収冷凍機 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6536229B1 (en) | 2000-08-29 | 2003-03-25 | Kawasaki Thermal Engineering Co., Ltd. | Absorption refrigerator |
Also Published As
Publication number | Publication date |
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EP1348919A1 (en) | 2003-10-01 |
EP1348919A4 (en) | 2008-04-23 |
US6536229B1 (en) | 2003-03-25 |
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