JP2014025653A - Refrigeration air conditioning method and apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a refrigeration air conditioning system which reduces discharge amount of COby utilizing solar heat, geothermal heat and waste heat of co-generation system, electric power station or the like.SOLUTION: Either of heat medium, hot water, steam and high temperature gas generated by solar heat collected by a solar heat collector 68, geothermal heat, waste heat of co-generation system, electric power station or the like, and the like is used for a driving heat source of a multiple effect absorption refrigerating machine 58 of triple effect or more. The multiple effect absorption refrigerating machine includes at least an absorber, an evaporator, a condenser, a solution heat exchanger and n pieces (n≥3) of regenerators, and has multiple effects.

Description

The present invention relates to a refrigerating and air-conditioning system (method and apparatus) in which CO ₂ emissions are reduced by using solar heat, geothermal heat, cogeneration (cogeneration) system, exhaust heat from a power plant, and the like. .

  Conventionally, what is shown in FIG. 9 is known as an example of an absorption refrigerator. This absorption refrigerator constitutes a cycle in which an absorption liquid (for example, an aqueous solution of lithium bromide) flows from the absorber 10 to the regenerator 14. The absorption cycle in this absorption refrigerator will be described. First, an absorbing liquid (a diluted absorbing solution or a diluted solution) whose concentration has been reduced by absorbing a large amount of refrigerant vapor in the absorber 10 is transferred from the absorber 10 to the heat exchanger 12. And heated to the regenerator 14 after being heated by the heat exchanger 12. The dilute absorbing liquid (diluted solution) is regenerated in the regenerator 14 and a part of the absorbed refrigerant is released, and the concentration is increased by that amount to become a concentrated absorbing liquid (concentrated solution).

  The concentrated absorbent is returned to the absorber 10 after being returned to the heating side of the heat exchanger 12 as a heating source for heating the diluted absorbent. The returned absorption liquid is spread on the heat transfer tube in the absorber 10 and absorbs the refrigerant vapor again while being cooled by the cooling water to become the diluted absorption liquid. 32 is an absorption liquid pump, 38 is a cooling water pump, and 40 is a cold water pump.

  Warm water or steam (water vapor) is supplied to the regenerator 14 as a heating source (drive heat source). The refrigerant vapor from the regenerator 14 is returned to the condenser 22 and condensed. The refrigerant liquid (for example, water) from the condenser 22 enters the evaporator 24, and the condensed refrigerant liquid is sprayed by the refrigerant pump 36 to the heat transfer pipe (water is circulating) of the evaporator 24 and cooled by latent heat of evaporation. As a result, cold water is obtained.

  Conventionally, there is known a refrigerating and air-conditioning system that uses hot water or water vapor generated by a heat pump for all or part of a driving heat source of an absorption chiller. However, this system has a reduction in efficiency due to heat loss when the heat of the heat pump is made to flow into the hot water storage tank and then used as a drive heat source in an absorption refrigerator.

  Furthermore, conventionally, a system that uses hot water or water vapor generated by a solar heat collector as a driving heat source for an absorption chiller is known. However, this system uses hot water or steam generated by a heat pump in combination.

JP 2011-89722 A

  The problem to be solved is that solar heat, geothermal heat, exhaust heat from a cogeneration system, a power plant, and the like are not efficiently used effectively as a driving heat source for an absorption chiller.

In order to provide a refrigeration and air-conditioning system with a small amount of CO ₂ emission, the present invention uses a heat medium, hot water, steam, or high-temperature gas generated by solar heat, geothermal heat, exhaust heat from a cogeneration system, power plant, etc. in triple effect or more. The most important feature is that it is used as a driving heat source for multiple-effect absorption refrigerators.

  The refrigerating and air-conditioning method of the present invention includes at least an absorber, an evaporator, a condenser, a solution heat exchanger, and n (n ≧ 3) regenerators, and a multi-effect absorption refrigerator having multiple effects, Use heat medium, hot water, water vapor, or high-temperature gas generated by solar heat, geothermal heat, cogeneration system or exhaust heat from a power plant, etc., as a driving heat source for a multi-effect absorption refrigerator. It is characterized by that.

  In the above method, multiple-effect absorption by directly using any one of the heat medium, hot water, water vapor and high temperature gas generated by solar heat, geothermal heat, exhaust heat from cogeneration system, power plant etc. It can be used as a driving heat source for a type refrigerator. Note that “direct use” means that these are used as a drive heat source for a multi-effect absorption refrigerator without receiving a heat medium, hot water, water vapor, or high-temperature gas in a buffer tank (storage tank) to be described later. .

  In addition, in the above method, the heat source of the backup device is used in combination with the drive heat source of the multi-effect absorption chiller to supplement the solar heat collected by the solar heat collector, geothermal heat, exhaust heat from the cogeneration system, power plant, etc. You may comprise.

  In these methods, any one of the heat medium, hot water, water vapor, and high-temperature gas generated by solar heat collected by the solar heat collector, geothermal heat, exhaust heat from a cogeneration system, a power plant, etc. is 200 ° C. or higher. It is desirable. In order to drive a multi-effect absorption refrigerator (for example, triple) of triple effect or higher, high temperature heat of 200 ° C. or higher is required. That is, if the temperature of the heat medium, hot water, water vapor, or high-temperature gas generated by solar heat, geothermal, exhaust heat from a cogeneration system, power plant, etc. is less than 200 ° C., a multi-effect absorption refrigeration machine without other heat sources There is a disadvantage that it cannot be driven.

  In these methods, it is desirable that the solar heat collector is a concentrating type. As described above, high temperature heat of 200 ° C. or higher, preferably 200 ° C. to 250 ° C. is required to drive the multi-effect absorption refrigerator. For example, a trough-type concentrating solar collector is used. When used, high-temperature heat of about 400 ° C. can be obtained at the maximum, so heat of about 250 ° C. can be easily obtained.

  In these methods, a system that excludes exhaust heat generators such as solar heat collectors, geothermal generation facilities, cogeneration systems, and power plants is packaged as a single system so that integrated control can be performed according to the refrigeration and air conditioning load. It may be configured to be integrated (collectively or integrated).

  Further, in these methods, a solar heat collector is included, a system that does not include a geothermal generation facility, a cogeneration system, an exhaust heat generation device such as a power plant, and the like is configured to be packaged as one system. Also good. Thus, a solar collector can also be included in the packaged system.

In these methods, remote monitoring may be performed. In this case, it may be configured to perform control such as load control remotely.
Further, in these methods, at least one of cooling tower control, cooling water circulation amount control, and cooling water circulation amount control may be performed according to the refrigeration air conditioning load.

  The refrigerating and air-conditioning apparatus of the present invention has at least an absorber, an evaporator, a condenser, a solution heat exchanger, and n (n ≧ 3) regenerators, and a multi-effect absorption refrigerator having multiple effects, A cooling tower for cooling the cooling water from the multi-effect absorption refrigerator, a cooling water pump for supplying cooling water from the cooling tower to the multi-effect absorption refrigerator, and the multi-effect absorption refrigeration In a refrigeration air conditioner equipped with at least a chilled water pump that circulates chilled water in the machine, a high-temperature regenerator and a solar heat collector, a geothermal generation facility, a waste heat generator such as a cogeneration system and a power plant, solar heat, geothermal, It is characterized in that it is connected via a drive heat source supply pipe that supplies any of the heat medium, hot water, steam, and high-temperature gas generated by exhaust heat from a cogeneration system or power plant as a drive heat source to the high-temperature regenerator. To have.

  In the above apparatus, the drive heat source supply pipe is configured to be connected to a buffer tank (storage tank) to which any one of the heat medium heated by the heat source of the backup device, hot water, water vapor and high temperature gas is supplied. May be.

In these devices, it is desirable that the solar heat collector is a concentrating type.
Moreover, in these apparatuses, you may comprise so that the control means which performs load control remotely according to refrigeration air conditioning load may be connected to a refrigeration air conditioning apparatus.
Further, in these devices, at least one of a cooling tower control means for controlling the fan of the cooling tower, a cooling water circulation amount control means for controlling the circulation amount of the cooling water, and a cooling water circulation amount control means for controlling the circulation amount of the cooling water is provided. You may comprise so that it may provide.

The refrigerating and air-conditioning method and apparatus of the present invention is a multi-effect absorption refrigerator driven by a heat medium, hot water, steam or high-temperature gas generated by solar heat, geothermal heat, exhaust heat from a cogeneration system, power plant, etc. By using it as a heat source, CO ₂ emission can be reduced.
Moreover, when using directly the heat medium, warm water, water vapor | steam, or high temperature gas which generate | occur | produced by the exhaust heat of solar heat, geothermal, a cogeneration system, a power plant, etc., a heat loss can be prevented and efficiency can be improved.
Further, when the heat source of the backup device is used in combination, it is possible to compensate for unstable solar heat, geothermal heat, exhaust heat from a cogeneration system, a power plant, and the like.
In addition, multiple-effect absorption refrigerators that are more than triple effects are more efficient than single-effect and double-effect absorption refrigerators, so less heat is required as a driving heat source, and solar heat collectors are installed. The area can be greatly reduced (the solar heat collector is made compact).

FIG. 1 is an explanatory diagram showing an example of a refrigeration air conditioner according to the present invention. FIG. 2 is an explanatory view showing a specific example of the refrigeration air conditioner shown in FIG. FIG. 3 is an explanatory view showing another example of the refrigerating and air-conditioning apparatus of the present invention. FIG. 4 is an explanatory view showing still another example of the refrigerating and air-conditioning apparatus of the present invention. FIG. 5 is an explanatory diagram showing an example of the details of the solar heat collector in the refrigeration air conditioner shown in FIG. 2 of the present invention. FIG. 6 is an explanatory view showing another example of the details of the solar heat collector in the refrigeration air conditioner shown in FIG. 2 of the present invention. FIG. 7 is a graph showing the performance (heat source input heat amount per output 1 RT) of the refrigeration air conditioner shown in FIG. FIG. 8 is a graph showing the performance (installation area of the solar heat collector) of the refrigeration air conditioner shown in FIG. FIG. 9 is an explanatory view showing an example of a conventional absorption refrigerator.

The purpose of providing a refrigeration and air-conditioning system with low CO ₂ emissions is a multi-effect more than triple effect using heat medium, hot water, steam, or high-temperature gas generated by solar heat, geothermal, exhaust heat from cogeneration systems, power plants, etc. It was realized by using it as a driving heat source for absorption refrigerators.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. However, the present invention is not limited to the following embodiments, and can be implemented with appropriate modifications. FIG. 1 shows a refrigeration air conditioner according to a first embodiment of the present invention. 50 is an absorber, 52 is a regenerator, 54 is a condenser, 56 is an evaporator, and the absorption refrigerator includes at least 50, 52, 54, and 56. Although the absorption refrigerator is simplified in FIG. 1, the absorption refrigerator is a multi-effect absorption refrigerator 58 including a triple effect or higher including an intermediate temperature regenerator and a high temperature regenerator. 60 is a cooling tower, 62 is a refrigeration and air conditioning load, 64 is a cooling water pump, and 66 is a cooling water pump. Note that illustration of heat exchangers, pipes, pumps, and the like included in the absorption refrigerator 58 is omitted.

  Thus, in the absorption chiller 58 which is a multiple effect absorption chiller having a triple effect or higher, the regenerator 52 (a high temperature regenerator in the multiple effect absorption chiller) and the solar heat collector 68 are generated by solar heat. The heat medium, hot water, water vapor, or high-temperature gas thus connected is connected via a driving heat source supply pipe 70 that supplies the regenerator 52 as a driving heat source. Here, as the heat medium, for example, oil or the like is used. Moreover, as a high temperature gas, the combustion exhaust gas from a cogeneration system, a power plant, etc. are used, for example.

  In the apparatus configured as described above, a heat medium, hot water, water vapor, or high-temperature gas generated by solar heat can be directly used as a driving heat source of the absorption chiller 58. That is, the heat medium, hot water, water vapor or high temperature gas generated by solar heat can be used as a driving heat source for a multi-effect absorption refrigerator without being received by a buffer tank (storage tank) or the like.

  In addition, the apparatus configured as described above can be packaged as a single system (collectively or integrally) except for the solar heat collector 68, and can be configured to be integratedly controlled. If a heating medium, hot water, water vapor or high temperature gas generated by solar heat is put into this system, it can be automatically controlled according to the refrigeration and air conditioning load. In this case, the solar heat collector 68 may be included in the packaged system.

  In the apparatus configured as described above, at least one of cooling tower control, cooling water circulation amount control, and cold water circulation amount control can be performed in accordance with the refrigeration air conditioning load. As an example, a specific example of the chilled water circulation amount control will be described later (see paragraph [0037]).

  In this case, remote monitoring may be performed and load control may be performed remotely. Specifically, the set value of the chilled water outlet temperature that is the output of the refrigerator is changed according to the load.

  FIG. 2 shows a specific example of the refrigeration air conditioner shown in FIG. As an example of the multiple effect, the absorption refrigerator is a triple effect absorption refrigerator 58a, and water vapor generated by solar heat collected by the solar heat collector 68 is used as a driving heat source of the absorption refrigerator 58a. As an example of the solar heat collector 68, a concentrating solar heat collector is used.

  In the triple effect absorption refrigerator 58a, although not shown in FIG. 2, the circulation cycle of the absorption liquid will be described in order. First, after absorbing a large amount of refrigerant vapor in the absorber and diluting the diluted absorption liquid, it is fed from the absorber to the low-temperature heat exchanger by the low-temperature absorption liquid pump and heated by the low-temperature heat exchanger. And sent to a low temperature regenerator.

  Most of the intermediate concentrated absorbent regenerated at low temperature in the low temperature regenerator is sent from the low temperature regenerator to the intermediate temperature heat exchanger by the intermediate temperature absorption liquid pump, heated by the intermediate temperature heat exchanger, and then sent to the intermediate temperature regenerator. Be paid. The intermediate concentrated absorbent is regenerated in the intermediate temperature regenerator, and a part of the absorbed refrigerant is released, and the concentration is further increased to become a high concentration concentrated absorbent. The remainder of the intermediate concentrated absorbent from the low-temperature regenerator is bypass-supplied via the first bypass pipe to the concentrated absorbent pipe that returns to the absorber.

  Part or all of the concentrated absorbent from the medium temperature regenerator is fed to the high temperature heat exchanger by the high temperature absorbent pump, where heat exchange with the concentrated absorbent from the high temperature regenerator (72 in FIG. 2) is performed. After being heated, it is supplied to a high temperature regenerator. The remaining portion of the concentrated absorbent from the intermediate temperature regenerator (which may be zero) joins the absorbent pipe on the heating side from the high temperature heat exchanger via the second bypass pipe.

In the high-temperature regenerator, the concentrated heat-absorbed liquid is introduced into the heating side of the high-temperature heat exchanger, and after the concentrated absorbent is heated from the intermediate-temperature regenerator, it is introduced into the heating side of the intermediate-temperature heat exchanger. The remaining portion of the concentrated absorbent from the intermediate temperature regenerator (which may be zero) joins the absorbent pipe on the heating side from the high temperature heat exchanger via the second bypass pipe.
The refrigerant vapor from the high temperature regenerator is introduced into the intermediate temperature regenerator through the refrigerant vapor pipe, and after the absorption liquid is heated and concentrated, the refrigerant drain is introduced into the low temperature regenerator.

The refrigerant vapor from the intermediate temperature regenerator passes through the refrigerant vapor pipe and is sent to the low temperature regenerator together with the refrigerant drain from the intermediate temperature regenerator, where the absorbent is heated and concentrated.
The refrigerant vapor from the low-temperature regenerator is introduced into the condenser through a refrigerant vapor pipe. In addition, it is also possible to add a regenerator such as an exhaust heat regenerator to the triple effect absorption refrigerator to obtain a multiple effect absorption refrigerator having a quadruple effect or more. In FIG. 2, 74 is an existing refrigerator, 76 is a condenser, and 78 is a water supply tank.
Needless to say, not only the reverse effect triple effect cycle as described above but also a parallel flow, a series flow or the like can be adopted. In addition to the steam type, other types can also be adopted.

  And the solar-heat collector 68 and the high temperature regenerator 72 in the absorption refrigerator 58a are connected through the drive heat source supply pipe 70 which supplies the water vapor | steam generated by the solar heat to the high temperature regenerator 72 as a drive heat source. The water vapor used as the driving heat source of the absorption chiller 58a is circulated to the solar heat collector 68 as condensed water. 80 is a drain separator and 82 is a drain pot.

  Moreover, as an example of control according to load, as shown in FIG. 2, cold water circulation amount control can be performed. That is, a chilled water circulation amount adjustment valve, for example, a three-way chilled water flow rate adjustment valve 96, having a bypass valve function for bypassing the refrigeration air conditioning load 62 with a part of the chilled water from the absorption chiller 58a is controlled. 98 is a cold water supply pipe, 100 is a cold water return pipe, 102 is a cold water bypass pipe, 104 is a cold water pump, 106 is a temperature sensor, and 108 is a controller. For example, when the refrigeration air conditioning load 62 becomes large, the amount of chilled water flowing through the chilled water bypass pipe 102 is reduced so that a large amount of cold water is sent to the refrigeration air conditioning load 62. Increase the amount of cold water flowing through 102. These controls are performed by connecting the temperature sensor 106 and the controller 108 so that the amount of bypass decreases when the detected temperature increases, and the amount of bypass increases when the detected temperature decreases.

  As the concentrating solar heat collector 68, for example, a trough type (parabolic trough type) concentrating solar heat collector can be used. As described above, in order to drive a multi-effect absorption refrigerator having a triple effect or higher, high-temperature heat of 200 ° C. or higher is required, but when a trough-type concentrating solar heat collector is used, 200 ° C. to Heat at a high temperature of about 250 ° C. can be easily obtained. As the concentrating solar heat collector 68, a tower type, a dish type, or the like can be used.

  FIG. 5 shows an example of a trough-type concentrating solar heat collector. The concentrating solar heat collector 68a uses a reflecting mirror 84 having a curved surface to concentrate sunlight on a pipe-type heat collecting tube 86 installed in front of the reflecting mirror 84 to obtain solar heat of about 400 ° C. The heating medium (water or the like) flowing through the heat collecting tube 86 is heated to about 200 ° C to 250 ° C.

  FIG. 6 shows another example of a trough-type concentrating solar heat collector. The concentrating solar heat collector 68 b reflects sunlight twice using the primary reflecting mirror 84 a and the secondary reflecting mirror 88, efficiently concentrates the sunlight on the heat collecting tube 86, and flows through the heat collecting tube 86. The medium is heated. Although the apparatus shown in FIG. 6 has the configuration shown in FIG. 2, the apparatus shown in FIG. 5 may be used.

Next, the performance of the apparatus shown in FIG. 2 will be described in comparison with a conventional apparatus. The apparatus shown in FIG. 2 is a steam triple effect system, and a steam double effect system is used as a conventional apparatus to be compared. As the solar heat collector, a trough-type concentrating solar heat collector (the amount of heat collection is 0.5 kW / m ² ) as shown in FIG. 6 is used.

  FIG. 7 shows the heat source heat input per output 1 RT (refrigeration ton) during cooling rated operation for each system, and shows heat input from the solar heat collector when there is sufficient sunshine. As shown in FIG. 7, the heat source heat input per output 1RT (heat input from the solar heat collector) is about 30% less in the device (A) shown in FIG. 2 than in the conventional device (B). I understand.

And FIG. 8 has shown the installation area of the solar heat collector of each system at the time of designing heat collection amount of a solar heat collector as 0.5 kW / m < ² >. FIG. 8 shows that the apparatus (A) shown in FIG. 2 can reduce the installation area of the solar heat collector by about 30% compared to the conventional apparatus (B).

  FIG. 3 shows a refrigeration air conditioner according to a second embodiment of the present invention. In this embodiment, in an absorption refrigerator that is a multiple effect absorption refrigerator 58 having a triple effect or more, a regenerator 52 (a high temperature regenerator in a multiple effect absorption refrigerator) and a cogeneration system 90 that is an exhaust heat generator. Are connected via a drive heat source supply pipe 70 that supplies the regenerator 52 with a heat medium, hot water, steam, or high-temperature gas generated by exhaust heat of the cogeneration system 90 as a drive heat source.

As the cogeneration system 90, for example, a gas turbine engine system, a gas engine system, a diesel engine system, a fuel cell system, or the like can be used.
In the apparatus configured as described above, the heat medium, hot water, water vapor, or high-temperature gas generated by the exhaust heat of the cogeneration system 90 can be directly used as the drive heat source of the absorption chiller 58.

  The same configuration is used when a geothermal generation facility is used or when the exhaust heat generator is a power plant or the like. Other configurations and operations are the same as those in the first embodiment. In the present embodiment, a solar heat collector is used in combination with an absorption refrigeration for the heat medium, hot water, water vapor, or high-temperature gas generated by both the solar heat collected by the solar heat collector and the exhaust heat of the cogeneration system 90. It can also be configured to be used as a drive heat source for the machine 58. In addition, a configuration in which solar heat, geothermal heat, exhaust heat from a cogeneration system, a power plant, or the like is appropriately combined may be employed.

  FIG. 4 shows a refrigeration air conditioner according to a third embodiment of the present invention. In the present embodiment, in an absorption refrigerator that is a multiple effect absorption refrigerator 58 having a triple effect or higher, a regenerator 52 (a high temperature regenerator in a multiple effect absorption refrigerator) and a solar heat collector 68 are combined with a solar heat collector. The heat medium generated by solar heat collected by the heater 68, hot water, water vapor, or high-temperature gas is connected via a drive heat source supply pipe 70 that supplies the regenerator 52 as a drive heat source. A buffer tank (storage tank) 94 to which a heating medium heated by the boiler 92, hot water, water vapor, or high temperature gas is supplied is connected to the driving heat source supply pipe 70. In the present embodiment, the heat medium, hot water, water vapor, or high-temperature gas generated by the solar heat collected by the solar heat collector 68 is received by the buffer tank 94 and then used as a drive heat source for the absorption chiller 58. .

  This embodiment uses the heat of the backup boiler 92 as a drive heat source for the absorption chiller 58 as a backup to supplement the solar heat collected by the solar heat collector 68 when the sunshine is unstable and the solar heat is insufficient. To do. Note that the backup device is not limited to the backup boiler 92, and it is of course possible to use a heat source other than the heat of the boiler. Further, as the energy of the backup device, gas, oil, water vapor or other heat sources can be used.

  In the device configured as described above, the heat source of the backup device can be used as the driving heat source of the absorption refrigerator 58 in addition to the heat medium, hot water, water vapor, or high-temperature gas generated by solar heat.

  Other configurations and operations are the same as those in the first embodiment. In the present embodiment, instead of the solar heat collector 68, the cogeneration system 90 in the second embodiment may be installed. Thereby, when the exhaust heat of the cogeneration system is unstable, the exhaust heat can be supplemented by the heat source of the backup device. Further, instead of the solar heat collector 68, it is possible to adopt a configuration in which a geothermal generation facility or a power plant or the like is installed as an exhaust heat generator. Furthermore, in this Embodiment, it is also possible to set it as the structure which uses together and uses together exhaust heat generators, such as a solar-heat collector, a geothermal generation facility, a cogeneration system, and a power plant.

CO ₂ emissions by using heat medium, hot water, steam or high temperature gas generated by exhaust heat from solar heat, geothermal, cogeneration system, power plant, etc., as the driving heat source for multi-effect absorption refrigerators with triple effects or higher A small amount of the refrigeration air conditioning system can be provided.

10, 50 Absorber 12 Heat exchanger 14, 52 Regenerator 22, 54 Condenser 24, 56 Evaporator 32 Absorbing liquid pump 36 Refrigerant pump 38, 64 Cooling water pump 40, 66, 104 Chilled water pump 58 Multi-effect absorption refrigeration Machine 58a Triple effect absorption chiller 60 Cooling tower 62 Refrigeration air conditioning load 68 Solar collector 68a, 68b Trough-type concentrating solar collector 70 Drive heat source supply pipe 72 High temperature regenerator 74 Existing refrigerator 76 Condensate 78 Water supply tank 80 Drain separator 82 Drain pot 84 Reflector 84a Primary reflector 86 Heat collecting pipe 88 Secondary reflector 90 Cogeneration system 92 Backup boiler 94 Buffer tank 96 Three-way cold water flow control valve 98 Cold water supply pipe 100 Cold water return pipe 102 Cold water bypass pipe 106 Temperature sensor 108 Controller

Claims (15)

  Solar heat collected by a solar collector in a multi-effect absorption refrigerator having at least an absorber, an evaporator, a condenser, a solution heat exchanger, and n (n ≧ 3) regenerators and having multiple effects Any one of heat medium, hot water, water vapor, and high-temperature gas generated by at least one of geothermal heat, cogeneration system exhaust heat and power plant exhaust heat is used as a driving heat source for a multi-effect absorption refrigerator. Refrigeration air conditioning method.   Multiple-effect absorption by directly using one of the heat medium, hot water, water vapor, and high-temperature gas generated by at least one of the solar heat collected by the solar heat collector, geothermal heat, exhaust heat from the cogeneration system, and exhaust heat from the power plant The refrigerating and air-conditioning method according to claim 1, which is used as a driving heat source for a type refrigerator.   The heat source of the backup device is used in combination with the drive heat source of the multi-effect absorption refrigerator to supplement the solar heat collected by the solar heat collector, geothermal heat, exhaust heat of the cogeneration system, and exhaust heat of the power plant. Refrigeration air conditioning method.   The heat medium, hot water, water vapor, and high-temperature gas generated by at least one of solar heat, geothermal heat, cogeneration system exhaust heat, and power plant exhaust heat collected by a solar heat collector is 200 ° C or higher. The refrigeration air conditioning method according to 1, 2 or 3.   The method for refrigerating and air-conditioning according to any one of claims 1 to 4, wherein the solar heat collector is a condensing type.   The solar heat collector, the geothermal generation facility, and the system excluding the cogeneration system and the power plant that are exhaust heat generators are packaged as one system so that integrated control can be performed according to the refrigeration and air conditioning load. The refrigeration air conditioning method according to any one of 5.   A solar heat collector, a geothermal generation facility, and a cogeneration system that is an exhaust heat generator and a system that does not include a power plant, and packaged as one system according to any one of claims 1 to 5. Refrigeration air conditioning method.   The refrigerating and air-conditioning method according to claim 1, wherein remote monitoring is performed.   The refrigerating and air-conditioning method according to claim 8, wherein the control is performed remotely.   The refrigeration air conditioning method according to any one of claims 1 to 9, wherein at least one of cooling tower control, cooling water circulation amount control, and chilled water circulation amount control is performed according to a refrigeration air conditioning load.   A multi-effect absorption refrigerator having at least an absorber, an evaporator, a condenser, a solution heat exchanger, and n (n ≧ 3) regenerators and having multiple effects, and the multiple-effect absorption refrigerator A cooling tower for cooling the cooling water, a cooling water pump for supplying cooling water from the cooling tower to the multi-effect absorption chiller, and a chilled water pump for circulating the cooling water to the multi-effect absorption chiller At least one of a high-temperature regenerator, a solar heat collector, a geothermal generation facility, and a cogeneration system that is an exhaust heat generator and a power plant, a solar heat, geothermal, and cogeneration system. It is connected via a drive heat source supply pipe that supplies any of the heat medium, hot water, water vapor, and high temperature gas generated by either the exhaust heat or the exhaust heat of the power plant to the high temperature regenerator as a drive heat source. Refrigeration air conditioning system, characterized in that the.   The refrigerating and air-conditioning apparatus according to claim 11, wherein a buffer tank to which any one of a heat medium heated by a heat source of the backup device, hot water, water vapor, and high-temperature gas is connected is connected to the drive heat source supply pipe.   The refrigerating and air-conditioning apparatus according to claim 11 or 12, wherein the solar heat collector is a concentrating type.   The refrigerating and air-conditioning apparatus according to claim 11, 12 or 13, wherein control means for remotely controlling the load according to the refrigerating and air-conditioning load is connected to the refrigerating and air-conditioning apparatus.   The cooling tower control means for controlling the fan of the cooling tower, at least one of the cooling water circulation amount control means for controlling the circulation amount of the cooling water, and the cold water circulation amount control means for controlling the circulation amount of the cold water are provided. The refrigeration air conditioner according to any one of the above.

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