JP5808105B2 - Heat source system and control method thereof - Google Patents

Heat source system and control method thereof Download PDF

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JP5808105B2
JP5808105B2 JP2010294244A JP2010294244A JP5808105B2 JP 5808105 B2 JP5808105 B2 JP 5808105B2 JP 2010294244 A JP2010294244 A JP 2010294244A JP 2010294244 A JP2010294244 A JP 2010294244A JP 5808105 B2 JP5808105 B2 JP 5808105B2
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heat
load
evaporator
condenser
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JP2012141097A (en
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和島 一喜
一喜 和島
勇三 高添
勇三 高添
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三菱重工業株式会社
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00Adapting or protecting infrastructure or their operation
    • Y02A30/20Adapting or protecting infrastructure or their operation in buildings, dwellings or related infrastructures
    • Y02A30/27Relating to heating, ventilation or air conditioning [HVAC] technologies
    • Y02A30/276Relating to heating, ventilation or air conditioning [HVAC] technologies of the sorption type
    • Y02A30/277Absorption based systems
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/60Other technologies for heating or cooling
    • Y02B30/62Absorption based systems

Description

  The present invention relates to a heat source system that performs cold output and hot output and a control method thereof.

An electric heat pump is known as a method for efficiently producing cold water and hot water simultaneously. FIG. 3 shows such an electric heat pump. As shown in FIG. 2A, the electric heat pump 101 heats the hot water in the condenser 107 where the refrigerant compressed by the electric compressor 105 condenses and expands the liquid refrigerant condensed in the condenser 107. Chilled water is cooled by being expanded by the valve 109 and evaporated by the evaporator 111.
The cold water cooled by the evaporator 111 is supplied to the cold heat load 115 by the cold water pump 113.
The hot water heated by the condenser 107 is supplied to the thermal load 119 by the hot water pump 117. In addition, when the cold output and the warm output are not balanced, surplus heat is exhausted by the cooling tower 121. Specifically, a part of the hot water is branched to the heat exchanger 125 via the three-way valve 123 to exchange heat with the cooling water introduced from the cooling tower 121. A configuration in which a part of the hot water is branched in this way is a double bundle type as shown in FIG. 3B (a configuration in which the condenser 107 is provided with a heat transfer tube for hot water output 107a and a heat transfer tube for exhaust heat 107b). The same applies to.

  FIG. 4 shows the heat balance of the electric heat pump 101 configured as described above. As shown in the figure, when the cold output of the electric heat pump 101 is “0.7” and the input power of the electric compressor is “0.3”, the hot output is “1.0”. When the amount of heat required by the thermal load is “0.5”, “0.5” of the excess thermal heat is exhausted.

  Patent Document 1 below discloses a method in which cooling and heating are performed simultaneously, with the lower stage being a refrigeration cycle using a compression refrigerator and the higher stage being a heat pump cycle using an absorption heat pump. .

JP-A-60-20065

However, the electric heat pump as shown in FIG. 3 throws away the excessive heat without effectively using it as shown in FIG.
Generally, an electric heat pump is one that inputs predetermined electrical energy, recovers heat from a low-temperature heat source (outputs cold heat), and moves the heat to a high temperature side, so the amount of heat recovered (cold output) and heat There is a certain ratio to the output. Therefore, when the cooling output required by the cooling load increases, the heating output increases correspondingly. In particular, in the summer season, the amount of heat required by the cooling load is larger than the amount of heat required by the heating load, so that there is a problem that the excess temperature further increases.
In addition, although the thing of patent document 1 outputs cold heat and warm temperature simultaneously, it does not mention at all about the effective utilization of surplus warm heat.

  This invention is made | formed in view of such a situation, Comprising: It aims at providing the heat source system which can output cold heat and warm heat with high efficiency, and its control method.

In order to solve the above problems, the heat source system and the control method thereof according to the present invention employ the following means.
That is, a heat source system according to the present invention includes a compressor that is driven by an electric motor to compress refrigerant, a condenser that condenses the refrigerant compressed by the compressor, and an expansion that expands the liquid refrigerant condensed by the condenser. A vapor compression type electric heat pump having a valve and an evaporator for evaporating the refrigerant expanded by the expansion valve; a regenerator for heating and concentrating the solution to regenerate the solution; and being led from the regenerator A condenser for condensing the refrigerant, an evaporator for evaporating the liquid refrigerant condensed in the condenser, and an absorption refrigerator having an absorber for absorbing the refrigerant evaporated by the evaporator into the solution. The electric heat pump outputs cold heat from the evaporator to the external cold load, and from the condenser to the external heat load and the regenerator of the absorption refrigeration machine. The external refrigeration machine outputs a cold to the external cold load from the evaporator, and the external thermal load is required from the hot output corresponding to the cold output supplied to the external cold load. The surplus thermal output obtained by reducing the thermal output to be branched from between the condenser of the electric heat pump and the external thermal load is supplied to the regenerator of the absorption refrigeration machine, so that the evaporator It has the control part which outputs cold heat with respect to an external cold load.

  The surplus heat output obtained by subtracting the heat output required by the external heat load from the heat output of the electric heat pump corresponding to the heat output supplied to the external heat load is supplied to the regenerator of the absorption chiller as a drive heat source. I decided to use it. As a result, it is possible to effectively use surplus heat output that has been discarded without being effectively used. Further, since the cold output of the absorption chiller driven by this surplus heat output is supplied to the external cold load, the efficiency of the heat source system can be further improved.

The heat source system of the present invention includes a compressor that is driven by an electric motor to compress the refrigerant, a condenser that condenses the refrigerant compressed by the compressor, and an expansion valve that expands the liquid refrigerant condensed by the condenser. And a vapor compression electric heat pump having an evaporator for evaporating the refrigerant expanded by the expansion valve, a regenerator for regenerating the solution by heating and condensing, and a condensation for condensing the refrigerant introduced from the regenerator A vaporizer that evaporates the liquid refrigerant condensed in the condenser, and an absorption type two-type heat pump that includes an absorber that absorbs the refrigerant evaporated by the evaporator into a solution and outputs heat. The electric heat pump outputs cold heat from the evaporator to an external cold load, and from the condenser, the external heat load and the regenerator of the absorption chiller, and Thermal energy is output to the evaporator, and the absorption type two heat pump outputs thermal energy from the absorber to an external high-temperature thermal load that is higher than the external thermal load, to the external cooling load. A control unit is provided that supplies , to the regenerator and the evaporator of the absorption type two heat pump, a surplus thermal output obtained by subtracting the thermal output required by the external thermal load from the thermal output corresponding to the supplied cold output. It is characterized by that.

  The surplus heat output obtained by subtracting the heat output required by the external heat load from the heat output of the electric heat pump corresponding to the heat output supplied to the external heat load is supplied to the regenerator and evaporator of the absorption type two heat pump. It was decided to use it as a heat source for driving. As a result, it is possible to effectively use surplus heat output that has been discarded without being effectively used. Moreover, since the thermal output of the absorption type two-type heat pump driven by this surplus thermal output can be supplied to the external high-temperature thermal load that is higher than the external thermal load, the application of the thermal can be expanded. In addition, the efficiency of the heat source system can be improved.

The control method of the heat source system of the present invention includes a compressor that is driven by an electric motor to compress the refrigerant, a condenser that condenses the refrigerant compressed by the compressor, and a liquid refrigerant condensed by the condenser is expanded. A vapor compression electric heat pump provided with an expansion valve for evaporating, and an evaporator for evaporating the refrigerant expanded by the expansion valve; a regenerator for heating and concentrating the solution to regenerate the solution; An absorption refrigerator having a condenser for condensing the introduced refrigerant, an evaporator for evaporating the liquid refrigerant condensed in the condenser, and an absorber for absorbing the refrigerant evaporated by the evaporator into the solution; The electric heat pump outputs cold heat from the evaporator to an external cooling load, and also outputs an external heating load from the condenser and a front heating load system. Heat is output to the regenerator of the absorption chiller, and the absorption chiller outputs cold heat to the external cooling load from the evaporator, and is supplied to the external cooling load by the control unit. The absorption-type refrigerator that branches the surplus thermal output obtained by subtracting the thermal output required by the external thermal load from the thermal output corresponding to the cold output from between the condenser of the electric heat pump and the external thermal load By supplying the regenerator, cold heat is output from the evaporator to the external cold load.

  The surplus heat output obtained by subtracting the heat output required by the external heat load from the heat output of the electric heat pump corresponding to the heat output supplied to the external heat load is supplied to the regenerator of the absorption chiller as a drive heat source. I decided to use it. As a result, it is possible to effectively use surplus heat output that has been discarded without being effectively used. Further, since the cold output of the absorption chiller driven by this surplus heat output is supplied to the external cold load, the efficiency of the heat source system can be further improved.

The control method of the heat source system of the present invention includes a compressor that is driven by an electric motor to compress the refrigerant, a condenser that condenses the refrigerant compressed by the compressor, and a liquid refrigerant condensed by the condenser is expanded. A vapor compression electric heat pump provided with an expansion valve for evaporating the refrigerant expanded by the expansion valve, a regenerator for heating and concentrating the solution, and a refrigerant introduced from the regenerator. Absorption type two heat pump comprising a condenser for condensing, an evaporator for evaporating the liquid refrigerant condensed in the condenser, and an absorber for absorbing the refrigerant evaporated by the evaporator into the solution and outputting warm heat The electric heat pump outputs cold heat to the external cold load from the evaporator and external heat negative from the condenser. And heat is output to the regenerator and the evaporator of the absorption refrigeration machine, and the absorption type two heat pump is applied to an external high-temperature heat load that is higher than the external heat load from the absorber. The controller outputs a surplus heat output obtained by subtracting the heat output required by the external heat load from the heat output corresponding to the heat output supplied to the external heat load by the control unit. It supplies to a regenerator and the said evaporator, It is characterized by the above-mentioned.

  The surplus heat output obtained by subtracting the heat output required by the external heat load from the heat output of the electric heat pump corresponding to the heat output supplied to the external heat load is supplied to the regenerator and evaporator of the absorption type two heat pump. It was decided to use it as a heat source for driving. As a result, it is possible to effectively use surplus heat output that has been discarded without being effectively used. Moreover, since the thermal output of the absorption type two-type heat pump driven by this surplus thermal output can be supplied to the external high-temperature thermal load that is higher than the external thermal load, the application of the thermal can be expanded. In addition, the efficiency of the heat source system can be improved.

Supply the surplus heat output to the regenerator of the absorption chiller and use it as a heat source for driving, and supply the cool output of the absorption chiller driven by this surplus heat output to the external cooling load As a result, the efficiency of the heat source system can be improved.
The surplus thermal output is supplied to the regenerator and evaporator of the absorption type two heat pump and used as a heat source for driving, and the thermal output of the absorption type two heat pump driven by this surplus thermal output is used. Since the heat source is supplied to a high-temperature heat load that is higher than the external heat load, the efficiency of the heat source system can be improved.

1st Embodiment concerning the heat-source system of this invention is shown, (a) Schematic block diagram, (b) is a figure which shows a heat balance. 2nd Embodiment concerning the heat-source system of this invention is shown, (a) Schematic block diagram, (b) is a figure which shows a heat balance. It is the schematic block diagram which showed the conventional electric heat pump. It is the figure which showed the heat balance of the electric heat pump of FIG.

Embodiments according to the present invention will be described below with reference to the drawings.
[First Embodiment]
Hereinafter, a first embodiment of the present invention will be described with reference to FIG.
As shown in FIG. 1A, the heat source system 1 </ b> A includes an electric heat pump 2 and an absorption refrigerator 3.

The electric heat pump 2 is a turbo refrigerator. Although not shown, the turbo refrigerator is driven by an electric motor to compress a refrigerant, a turbo compressor 5, a condenser 7 that condenses the refrigerant compressed by the turbo compressor 5, and a condensed liquid refrigerant that expands. An expansion valve 9 and an evaporator 11 for evaporating the expanded refrigerant are provided.
The heat pump 2 typically includes a turbo refrigerator using a turbo compressor as in the present embodiment, but other vapor compression heat pumps using a screw type or scroll type compressor. But you can.

  The turbo compressor 5 may be a fixed speed that rotates at a constant speed, or may be a variable speed that is variable in frequency by inverter drive.

The evaporator 11 is thermally connected to an external cooling load 15 such as an air conditioner by a cold water pipe 13. Cold water flows through the cold water pipe 13 and is circulated between the cold load 15 and the evaporator 11 by the cold water pump 17. For example, chilled water at 15 ° C. introduced from the cold load 15 flows into the evaporator 11, and the chilled water cooled to, for example, 10 ° C. by removing the latent heat of evaporation from the refrigerant in the evaporator 11 is returned to the cold load 15. It has become. Thus, the evaporator 11 outputs cold heat to the cold load 15 and recovers heat from the cold load 15.
The temperature of the chilled water supplied to the cooling / heating load 15 is operated by a control unit (not shown) so that the setting value requested in advance from the cooling / heating load 15 is obtained. Specifically, the chilled water temperature is adjusted by adjusting the rotational speed of the turbo compressor 5, the opening degree of the capacity control guide vanes provided in the turbo compressor 5, and the like.

  The condenser 7 is thermally connected to an external thermal load 21 by a thermal output pipe 19. Hot water as a heat medium flows through the high-temperature water output pipe 19 and is circulated between the condenser 7 and the thermal load 21 by a hot water pump 23. From the condenser 7, for example, 80 ° C. warm water is output toward the thermal load 21, and the hot water whose temperature has been reduced to, for example, 75 ° C. by the thermal load 21 is returned to the condenser 7. ing.

A hot water supply pipe 25 for supplying hot water to the absorption refrigerator 3 is connected to the high temperature water output pipe 19 via a three-way valve 20 for hot water. A part of the hot water is branched by the hot water supply pipe 25, led to the regenerator 30 of the absorption refrigeration machine 3, and returned to the hot water output pipe 19 after passing through the regenerator 30.
Hot water temperature supplied to the heat load 21 is adapted to be operated by a control unit (not shown) such that the pre-requested set value from the hot heat load 21. Therefore, the temperature of the hot water supplied to the thermal load 21 and the amount of output heat are adjusted by adjusting the opening degree of the hot water three-way valve 20 by the control unit. The hot water three-way valve 20 may be constituted by two two-way valves.

  The absorption chiller 3 includes a regenerator 30 that is supplied with warm heat to heat and concentrate the solution to regenerate, a condenser 32 that condenses the refrigerant guided from the regenerator 30, and a liquid condensed in the condenser 32. An evaporator 35 that evaporates the refrigerant and an absorber 37 that absorbs the refrigerant evaporated by the evaporator 35 into the solution are provided.

  As described above, the regenerator 30 is supplied with hot water at 80 ° C., for example, via the hot water supply pipe 25. That is, the hot water output from the electric heat pump 2 is used as a heat source for driving the absorption refrigerator 3.

  The condenser 32 is cooled by cooling water. The cooling water is circulated between the cooling tower 41, the absorber 37, and the condenser 32 by a cooling water pump 39. The cooling water temperature before flowing into the cooling tower 41 through the condenser 32 is, for example, 37.5 ° C., and the cooling water cooled to, for example, 32 ° C. by the cooling tower 41 flows into the absorber 37. It is like that.

The evaporator 35 is thermally connected to the cold load 15 by a cold water pipe 43. Cold water as a heat medium flows through the cold water pipe 43 and circulates between the evaporator 35 and the cold load 15 . From the evaporator 35 is adapted to the cold water and for example 10 ° C. Towards cooling load 1 5 is outputted, so that the temperature elevated cold water is returned to the evaporator 35 by cooling load 1 5 for example to 15 ℃ It has become. Thus, the evaporator 35 of the absorption refrigeration machine 3 outputs cold water, for example, at 10 ° C.

A control unit (not shown) controls the operation of the entire heat source system 1A.
The control unit stores performance data of the electric heat pump in the storage unit, and can calculate the relationship between the cold output and the hot output in each state. Therefore, the thermal output corresponding to the cold output output to the refrigeration load 15 is calculated, and the surplus heat that is the difference from the thermal output supplied to the thermal load 21 can also be calculated. The control unit adjusts the opening degree of the hot water three-way valve 20 so as to supply this excessive heat to the absorption refrigerator 2.

  As described above, the heat source system 1A having the above configuration supplies the cold water to the cold load 15 and supplies the hot water to the hot load 21 and also uses the excessive heat from the hot water as the driving heat source to operate the cold load from the absorption refrigerator 3. 15 outputs cold water.

FIG. 1B shows the heat balance of the heat source system 1A of the present embodiment. As shown in the figure, when the amount of heat of the cooling output supplied to the cooling load 15 is “0.7” and the input heat amount of the power of the turbo compressor 5 is “0.3”, the electric heat pump 2 The thermal output is a heat quantity “1.0”. A heat quantity “0.5”, which is half of the heat output of the electric heat pump 2, is supplied to the heat load 21, and the remaining heat quantity “0.5” is used as a heat source for driving the absorption refrigerator 3. . When the COP of the absorption chiller 3 is set to 0.8, cold heat having a calorific value “0.4” can be supplied to the cold load 15 . On the other hand, the heat quantity “0.9” is exhausted in the cooling tower 41.
As for the COP of the heat source system as a whole, the input heat amount is “0.3” of the turbo compressor 5, the thermal output to the thermal load 21 is “0.5”, and the cold output to the cold load 15 is “1. 1 ”(0.7 + 0.4), so 5.3 ((0.5 + 1.1) /0.3).

  As described above, according to the heat source system 1A according to the present embodiment, the surplus heat output obtained by subtracting the heat output required by the heat load 21 from the heat output of the electric heat pump 2 corresponding to the heat output supplied to the heat load 15 is obtained. Since it is supplied to the regenerator 30 of the absorption refrigeration machine 3 and used as a heat source for driving, it is possible to effectively utilize the surplus heat output that has been discarded without being effectively utilized. Further, since the cold output of the absorption chiller 3 driven by the surplus heat output is supplied to the cold load 15, the efficiency of the heat source system 1A can be further improved.

[Second Embodiment]
Next, a second embodiment of the present invention will be described with reference to FIG.
The present embodiment is different from the first embodiment in that the absorption refrigeration machine 3 of the first embodiment is changed to an absorption type two-type heat pump and is configured to output high-temperature water at 100 ° C. or higher. . Other common configurations are denoted by the same reference numerals and description thereof is omitted.

As shown in FIG. 2A, the heat source system 1B includes an electric heat pump 2 that recovers exhaust heat from low-temperature exhaust heat and outputs high-temperature water of 90 ° C. or more, and an absorption type, as in the first embodiment. A two-type heat pump 4 is provided.
Hot water is a thermal output of the electric heat pump 2, from the hot water output pipe 19, via a hot water three-way valve 20, both supplied to the regenerator 3 0 of absorption two heat pump 4 via the hot water supply pipe 25, It is also supplied to the evaporator 35.

  The condenser 32 of the absorption type two-type heat pump 4 is cooled by cooling water. The cooling water is circulated between the cooling tower 41 and the condenser 32 by a cooling water pump 39. The cooling water temperature before passing through the condenser 32 and flowing into the cooling tower 41 is, for example, 37.5 ° C., and the cooling water cooled to, for example, 32 ° C. by the cooling tower 41 is returned to the condenser 32. It has become so.

  The absorber 37 and the high temperature / thermal load 55 are thermally connected by a high temperature water pipe 57. That is, high temperature water heated through the absorber 37 by the high temperature water pump 59 is supplied to the high temperature and heat load 55. Hot water having a temperature higher than that of the thermal load 21 is supplied to the high-temperature / thermal load 55, for example, high-temperature water having a temperature of about 100 ° C. or higher, for example, about 110 ° C., and high-temperature water whose temperature has been lowered to 100 ° C. It is supposed to be returned.

  As described above, the heat source system 1B of the present embodiment supplies the cold water to the cold load 15 and the hot load 21 to the hot load 21 and operates from the absorption type two-type heat pump 4 that operates using the excess hot heat of the hot water as a driving heat source. High temperature water is output to the high temperature / heat load 55.

FIG. 2B shows the heat balance of the heat source system 1B of the present embodiment. As shown in the figure, when the amount of heat of the cooling output supplied to the cooling load 15 is “0.7” and the input heat amount of the power of the turbo compressor 5 is “0.3”, the electric heat pump 2 The thermal output is a heat quantity “1.0”. A heat quantity “0.5”, which is half of the heat output of the electric heat pump 2, is supplied to the heat load 21, and the remaining heat quantity “0.5” is used as a heat source for driving the absorption refrigerator 3. . The absorption type two-type heat pump 4 outputs high-temperature water at 110 ° C. having a heat quantity “0.25” to the high-temperature heat load 55 according to the heat quantity “0.5” obtained from the electric heat pump 2, and has a heat quantity “0. 25 ”is exhausted by the cooling tower 41.
The COP of the heat source system as a whole has an input heat amount of “0.3” of the turbo compressor 5, a thermal output to the thermal load 21 of “0.5”, and a thermal output to the high temperature thermal load 55 of “0. 25 ”, and since the cold output to the cold load 45 is“ 0.7 ”, it is 4.8 ((0.5 + 0.25 + 0.7) /0.3).

  As described above, according to this embodiment, the surplus thermal output obtained by subtracting the thermal output required by the thermal load 21 from the thermal output of the electric heat pump 2 corresponding to the thermal output supplied to the thermal load 15 is absorbed by two types. The heat pump 4 is supplied to the regenerator 30 and the evaporator 35 and used as a heat source for driving. As a result, it is possible to effectively use surplus heat output that has been discarded without being effectively used. Moreover, since the thermal output of the absorption type two-type heat pump 4 driven by the surplus thermal output can be supplied to the high-temperature thermal load 55 that is higher than the thermal load 21, the use of hot water can be expanded. In addition, the efficiency of the heat source system can be improved.

  In each of the above-described embodiments, an absorption refrigerator or an absorption heat pump has been described. However, an absorption refrigerator or an adsorption heat pump using silica gel or the like can be used instead of the absorption type.

1A, 1B Heat source system 3 Absorption type refrigerator 4 Absorption type 2 heat pump 5 Turbo compressor 7 Condenser 9 Expansion valve 11 Evaporator 15 Cold load (external cold load)
21 Thermal load (external thermal load)
30 Regenerator 32 Condenser 35 Evaporator 37 Absorber 55 High Temperature Heat Load (External High Temperature Heat Load)

Claims (4)

  1. A compressor that is driven by an electric motor to compress the refrigerant, a condenser that condenses the refrigerant compressed by the compressor, an expansion valve that expands the liquid refrigerant condensed by the condenser, and an expansion valve that is expanded by the expansion valve A vapor compression electric heat pump equipped with an evaporator for evaporating the refrigerant,
    A regenerator that regenerates the solution by heating and concentrating by supplying warm heat, a condenser that condenses the refrigerant led from the regenerator, an evaporator that evaporates the liquid refrigerant condensed in the condenser, and the evaporation An absorption refrigerator having an absorber that absorbs the refrigerant evaporated by the vessel into the solution;
    With
    The electric heat pump outputs cold heat from the evaporator to an external cold load, and outputs hot heat from the condenser to an external heat load and the regenerator of the absorption refrigeration machine,
    The absorption refrigerator outputs cold heat from the evaporator to the external cold load,
    A surplus thermal output obtained by subtracting the thermal output required by the external thermal load from the thermal output corresponding to the thermal output supplied to the external thermal load is branched from between the condenser of the electric heat pump and the external thermal load. a heat source system, characterized in that by supplying to the regenerator of the absorption refrigerating machine, a control unit for outputting cold to the external cooling load from the evaporator to.
  2. A compressor that is driven by an electric motor to compress the refrigerant, a condenser that condenses the refrigerant compressed by the compressor, an expansion valve that expands the liquid refrigerant condensed by the condenser, and an expansion valve that is expanded by the expansion valve A vapor compression electric heat pump equipped with an evaporator for evaporating the refrigerant,
    A regenerator that regenerates the solution by heating and concentrating, a condenser that condenses the refrigerant guided from the regenerator, an evaporator that evaporates the liquid refrigerant condensed in the condenser, and a refrigerant evaporated by the evaporator Absorption type two heat pumps equipped with an absorber that absorbs heat into the solution and outputs heat,
    With
    The electric heat pump outputs cold heat from the evaporator to an external cold load, and outputs heat from the condenser to an external heat load and the regenerator and the evaporator of the absorption refrigeration machine,
    The absorption type two heat pump outputs heat from the absorber to the external high-temperature heat load that is higher than the external heat load,
    Control for supplying surplus heat output obtained by subtracting the heat output required by the external heat load from the heat output corresponding to the heat output supplied to the external heat load to the regenerator and the evaporator of the absorption type two heat pump A heat source system characterized by comprising a section.
  3. A compressor that is driven by an electric motor to compress the refrigerant, a condenser that condenses the refrigerant compressed by the compressor, an expansion valve that expands the liquid refrigerant condensed by the condenser, and an expansion valve that is expanded by the expansion valve A vapor compression electric heat pump equipped with an evaporator for evaporating the refrigerant,
    A regenerator that regenerates the solution by heating and concentrating by supplying warm heat, a condenser that condenses the refrigerant led from the regenerator, an evaporator that evaporates the liquid refrigerant condensed in the condenser, and the evaporation An absorption refrigerator having an absorber that absorbs the refrigerant evaporated by the vessel into the solution;
    A method for controlling a heat source system comprising:
    The electric heat pump outputs cold heat from the evaporator to an external cold load, and outputs hot heat from the condenser to an external heat load and the regenerator of the absorption refrigeration machine,
    The absorption refrigerator outputs cold heat from the evaporator to the external cold load,
    By the controller, a surplus heat output obtained by subtracting a heat output required by the external heat load from a heat output corresponding to the heat output supplied to the external heat load, the condenser of the electric heat pump, and the external heat load A control method for a heat source system, characterized in that cold energy is output from the evaporator to the external cold load by branching from between the two and supplying the regenerator of the absorption refrigerator.
  4. A compressor that is driven by an electric motor to compress the refrigerant, a condenser that condenses the refrigerant compressed by the compressor, an expansion valve that expands the liquid refrigerant condensed by the condenser, and an expansion valve that is expanded by the expansion valve A vapor compression electric heat pump equipped with an evaporator for evaporating the refrigerant,
    A regenerator that regenerates the solution by heating and concentrating, a condenser that condenses the refrigerant guided from the regenerator, an evaporator that evaporates the liquid refrigerant condensed in the condenser, and a refrigerant evaporated by the evaporator Absorption type two heat pumps equipped with an absorber that absorbs heat into the solution and outputs heat,
    A method for controlling a heat source system comprising:
    The electric heat pump outputs cold heat from the evaporator to an external cold load, and outputs heat from the condenser to an external heat load and the regenerator and the evaporator of the absorption refrigeration machine,
    The absorption type two heat pump outputs heat from the absorber to the external high-temperature heat load that is higher than the external heat load,
    The regenerator and the evaporator of the absorption type two-type heat pump obtain a surplus heat output obtained by subtracting the heat output required by the external heat load from the heat output corresponding to the heat output supplied to the external heat load by the control unit . A heat source system control method comprising:
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