JP2008020094A - Absorption type heat pump device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an absorption type heat pump device capable of further improving performance and efficiency even in using low-pressure steam as a heat source. <P>SOLUTION: This absorption type heat pump device is provided with a class I absorption heat pump 2 and an absorption refrigerating machine 3 for single effect. The absorption refrigerating machine 3 for single effect is composed of a cold water flow channel 11, a first evaporator 12, a first absorber 13, a first regenerator 14, a first condenser 15 and a cooling water flow channel 16. The class I absorption heat pump 2 is composed of a second evaporator 31, a second absorber 32, a second regenerator 33 for evaporating a refrigerant from the absorbing liquid used in the second absorber 32 to separate the same from the absorbing liquid, a second condenser 34, a hot water flow channel 35 in which cooling water for supplying cold to the second absorber 32 and supplying the heat taken out from the second absorber 32 to the first regenerator 14, and a hot water heater 45 for transferring the heat of the absorbing liquid separated from the refrigerant by the second regenerator, to the cooling water passing through the second absorber 32, in the hot water flow channel 35. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an absorption heat pump apparatus.

An absorption heat pump apparatus manufactures cold water and warm water by moving heat using a two-stage absorption heat pump cycle.
In the absorption heat pump device, heat is recovered from a heat source by one absorption heat pump cycle of two-stage absorption heat pump cycles, and this heat is used to drive the other heat pump cycle (heat pump cycle for producing cold water). ing.

The absorption heat pump cycle has a cold water passage in which cold water is circulated and an evaporator in which refrigerant is stored. In the absorption heat pump cycle, the coolant inside the evaporator takes the heat of the cold water and evaporates to cool the cold water.
The absorption heat pump cycle has an absorber in which an absorbing liquid that absorbs the refrigerant is stored and the inside is connected to an evaporator. As a result, the refrigerant vapor in the evaporator is recovered in the absorber and the internal pressure of the evaporator is maintained in a high vacuum state, and the evaporation of the refrigerant in the evaporator is continued.

Furthermore, the absorption heat pump cycle uses the heat taken from the heat source to evaporate the refrigerant from the absorbing liquid used in the absorber and regenerate the absorbing liquid, and condenses the refrigerant vapor generated in the regenerator. And a condenser that liquefies. The absorption liquid regenerated by the regenerator and the liquid refrigerant condensed by the condenser are sent again to the evaporator and reused. Thereby, the continuous operation of the absorption heat pump cycle is possible.
Here, in this absorption heat pump cycle, a plurality of regenerators are provided, and the heat of refrigerant vapor generated in some regenerators is used for heating the absorbing liquid in other regenerators. Although it is possible to improve the utilization efficiency of the heat generated by the heat source, in order to use the steam heat source generated in the first stage regenerator as the heat source for heating the second stage regenerator, the first stage Since a high-temperature heat source for heating the regenerator is required, a method for improving efficiency by providing a plurality of regenerators for a low-temperature heat source cannot be performed.

As an absorption heat pump device, for example, an absorption heat pump system described in Patent Document 1 described below is known.
The heat pump system described in Patent Literature 1 is driven by the heat of the heat source to generate cold heat, and is driven by the heat of the heat source to produce cold water, and the cold heat generated by the high temperature side heat pump is also used to produce cold water. It is comprised with the low temperature side heat pump (absorption refrigerator) to utilize.
JP 2000-55497 (paragraph [0012], paragraph [0013], FIG. 3 etc.)

However, in the heat pump system described in the cited document 1, when the heat source for driving the high temperature side heat pump is, for example, low pressure steam of about 0.1 Mpa (G), the second absorber and the second condensation of the high temperature side heat pump. The temperature of the heat supplied from the generator to the first generator of the low-temperature heat pump is not so high. For this reason, the amount of cold produced by the low temperature side heat pump is kept low, and it is difficult to obtain a large amount of cold.
In the heat pump system described in the cited document 1, the heat generated by the second absorber and the second condenser of the high temperature side heat pump is supplied to the first generator (regenerator) of the low temperature side heat pump and is supplied to the first generator. Although it has been used for the regeneration of the absorption liquid of this, the capability of the low-temperature side heat pump is improved thereby, but further improvement of the capability and efficiency is required.

  This invention is made | formed in view of such a situation, Comprising: Even if it uses a low pressure steam as a heat source, it aims at providing the absorption heat pump apparatus which can improve a performance and efficiency further.

In order to solve the above problems, the present invention employs the following means.
That is, the present invention relates to a first type absorption heat pump that extracts low-temperature heat with high efficiency from a high-temperature heat source, and generates cold using the heat extracted by the first-type absorption heat pump and supplies it to a low-temperature load. A single-effect absorption refrigeration machine, wherein the single-effect absorption chiller includes a chilled water passage through which chilled water supplying cold heat to the low-temperature load is circulated and the chilled water in the chilled water passage inside A refrigerant that evaporates by taking away heat is stored, a first evaporator that exchanges heat between the cold water and the refrigerant, and an interior that is connected to the first evaporator and the refrigerant is contained in the interior Absorbing liquid to be absorbed is stored, a first absorber that absorbs the refrigerant vapor into the absorbing liquid, and the refrigerant is evaporated from the absorbing liquid used in the first absorber to be separated from the absorbing liquid First regenerator and refrigerant generated in the first regenerator A first condenser that condenses and liquefies gas, and a cooling water passage through which cooling water that supplies cold to the first absorber is circulated. A refrigerant that evaporates by taking heat of the cooling water in the cooling water flow path is stored, a second evaporator that performs heat exchange between the cooling water and the refrigerant, and an inside that is the second evaporator An absorption liquid that is connected and absorbs the refrigerant inside is stored, and a second absorber that absorbs the refrigerant vapor into the absorption liquid, and the absorption liquid used in the second absorber A second regenerator that evaporates the refrigerant and separates it from the absorbing liquid; a second condenser that condenses and liquefies the refrigerant vapor generated in the second regenerator and heats the hot water with its condensation heat; Heated by the two absorbers and the second condenser to transfer the heat to the first regenerator A hot water passage through which the hot water to be circulated is circulated, and the heat of the absorbent separated from the refrigerant by the second regenerator with respect to the hot water that has passed through the second absorber in the hot water passage. An absorption heat pump device having a hot water heater for transmission is provided.

In the absorption heat pump device configured as described above, the heat of the absorption liquid heated by the second regenerator of the first type absorption heat pump is passed through the hot water heater to the first regenerator of the single effect absorption refrigerator. Supplied. That is, in this absorption heat pump device, the heat of the absorbing liquid heated by the second regenerator is used for regenerating the refrigerant in the first regenerator.
Thereby, the refrigerant | coolant regeneration capability in a single effect absorption refrigerator improves, and the cold-heat supply capability to a low temperature load increases.

  The present invention also relates to a first-type absorption heat pump that extracts heat from the heat source steam, and a single-effect absorption chiller that generates cold using the heat extracted by the first-type absorption heat pump and supplies it to a low-temperature load. The single-effect absorption refrigerator has a chilled water flow path through which chilled water supplying cold heat to the low temperature load is circulated, and evaporates by taking heat of the chilled water in the cold water flow path inside And a first evaporator that exchanges heat between the cold water and the refrigerant, and an interior that is connected to the first evaporator and that absorbs the refrigerant in the interior. A first absorber that absorbs the refrigerant vapor into the absorption liquid; and a first regenerator that evaporates the refrigerant from the absorption liquid used in the first absorber and separates the refrigerant from the absorption liquid. , The refrigerant vapor generated in the first regenerator is condensed and liquefied The first condenser and the cooling water passage through which the cooling water for supplying cold to the first absorber is circulated, and the first type absorption heat pump is provided inside the cooling water passage. A refrigerant that evaporates by taking heat of the cooling water is stored, a second evaporator that performs heat exchange between the cooling water and the refrigerant, and an interior connected to the second evaporator and the interior The absorption liquid that absorbs the refrigerant is stored in a second absorber that absorbs the refrigerant vapor into the absorption liquid, and the absorption liquid used in the second absorber is heated by the heat of the heat source vapor. A second regenerator that evaporates the refrigerant and separates it from the absorbing liquid, and a second condenser that condenses and liquefies the refrigerant vapor generated in the second regenerator, and heats the hot water with the heat of condensation. And is heated by the second absorber and the second condenser to transfer the heat to the first The hot water flow path through which the hot water supplied to the regenerator is circulated and the heat of the steam drain of the heat source steam used for the regeneration of the absorption liquid in the second regenerator are recovered to the first regenerator Provided is an absorption heat pump device having a heat recovery device that transmits to the supplied absorption liquid.

  In the absorption heat pump device configured as described above, the heat of the steam drain of the heat source steam used for heating the absorption liquid in the second regenerator of the first type absorption heat pump is absorbed by the single effect through the heat recovery device. It is transmitted to the absorbent supplied to the first regenerator of the refrigerator. That is, in this absorption heat pump device, since the temperature of the absorbing liquid supplied to the first regenerator rises, the first regenerator passes through the second cooling water channel for the regeneration of the absorbing liquid in the first regenerator. The amount of heat supplied to the heat generator (the amount of heat supplied to the first regenerator by the first type absorption heat pump itself) can be smaller than before, and the efficiency of the absorption heat pump device is improved.

Here, also in this absorption heat pump device, hot water heating that transfers heat of the absorbing liquid separated from the refrigerant by the second regenerator to the hot water that has passed through the absorber in the hot water flow path. A vessel may be provided.
In this case, the heat of the absorbing liquid heated by the second regenerator of the first type absorption heat pump is supplied to the first regenerator of the single effect absorption refrigerator through the hot water heater. That is, in this absorption heat pump device, the heat of the absorbing liquid heated by the second regenerator is used for regenerating the refrigerant in the first regenerator.
Thereby, the refrigerant | coolant regeneration capability in a single effect absorption refrigerator improves, and the cold-heat supply capability to a low temperature load increases.

  According to the absorption heat pump apparatus of the present invention, as described above, the heat of the heat source is not only regenerated in the second regenerator of the first type absorption heat pump but also the first of the single effect absorption refrigerator. It is used for regeneration of the absorbing solution in the regenerator and heating of the absorbing solution supplied to the first regenerator. For this reason, the heat supply capacity and efficiency to the low temperature load can be improved by effectively using the heat of the heat source.

Embodiments of 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.
The absorption heat pump device 1 according to the present embodiment generates cold using a first type absorption heat pump 2 that extracts low-temperature heat with high efficiency from a heat source H, and heat extracted by the first type absorption heat pump 2. And a single effect absorption refrigerator 3 for supplying to a low temperature load C (for example, an indoor heat exchanger of an air conditioner).

  The single effect absorption refrigerator 3 includes a cold water passage 11 in which cold water is circulated and circulated, a first evaporator 12 in which refrigerant (for example, water) is stored, and an absorption liquid (for example, which absorbs refrigerant in the interior) (for example, The first absorber 13 storing lithium bromide), the first regenerator 14 for evaporating the refrigerant from the absorbing liquid containing the refrigerant (diluted absorbing liquid) and separating it from the absorbing liquid, and the first regenerator 14 A first condenser 15 that condenses and liquefies the generated refrigerant vapor.

The cold water flow path 11 supplies cold heat to the low temperature load C by cold water flowing through the inside. The first evaporator 12 causes the refrigerant stored inside to take heat of the cold water in the cold water flow path 11 and vaporize the refrigerant. That is, the first evaporator 12 performs heat exchange between the cold water and the refrigerant to vaporize the refrigerant and cool the cold water in the cold water flow path 11.
The first absorber 13 is connected to the inside of the first evaporator 12 so that the refrigerant vapor generated in the first evaporator 12 is absorbed by the absorbing liquid in the first absorber 13. It has become. Thus, the refrigerant vapor generated in the first evaporator 12 is taken into the first absorber 13, whereby the internal pressure of the first evaporator 12 is maintained in a high vacuum state, The evaporation of the refrigerant continues.

Here, the absorbing liquid emits heat of absorption when absorbing the refrigerant. The absorption capacity of the refrigerant increases as the temperature of the absorption liquid decreases. The single-effect absorption refrigerator 3 is provided with a cooling water flow path 16 in which cooling water is circulated. The cooling water flowing in the cooling water flow path 16 includes a first type as described later. Cold energy is supplied from the absorption heat pump 2. As a result, the heat of the absorption liquid in the first absorber 13 is taken away by the cooling water flowing through the cooling water flow path 16 to cool the absorption liquid, and the absorption of the refrigerant by the absorption liquid is favorably performed. ing. Moreover, the cooling water flow path 16 is connected with the cooling tower CT installed, for example outdoors.
Moreover, in this embodiment, the cooling water flow path 16 has the downstream part of the 1st kind absorption heat pump 2 inserted in order of the 1st absorber 13 and the 1st condenser 15, and also the 1st condensation In the subsequent stage of the vessel 15, it is connected to the cooling tower CT. That is, cold heat is also supplied into the condenser 15 by the cooling water flowing through the cooling water flow path 16 and is used for condensing the refrigerant in the first condenser 15. And the cooling water which passed the 1st condenser 15 is supplied to the 1st type absorption heat pump 2 again, after being cooled by cooling tower CT.

The first absorber 13 and the first regenerator 14 are connected via a first rare absorbent channel 21, and the rare absorbent used in the first absorber 13 is the first rare absorbent flow. The first regenerator 14 is supplied through the path 21.
As will be described later, the first regenerator 14 is supplied with heat from the first-type absorption heat pump 2 for heating the diluted absorbent, whereby the first regenerator 13 enters the first regenerator 14. The refrigerant in the diluted absorbent that has been fed is evaporated and separated from the absorbent.
The first regenerator 14 and the first absorber 13 are connected to each other through a first absorption liquid recovery flow path 22 and are separated from the refrigerant and concentrated by the first regenerator 14 (concentrated absorption liquid). ) Is collected in the first absorber 13 through the first absorbent collection channel 22 and reused for absorption of the refrigerant.

  Further, in the single effect absorption refrigerator 3, heat exchange is performed between the diluted absorbent flowing in the first diluted absorbent flow channel 21 and the concentrated absorbent flowing in the first absorbent collected flow channel 22. A first absorbent liquid heat exchanger 23 is provided. As a result, the rare absorbent flowing through the first rare absorbent channel 21 is returned to the first absorber 13 through the first absorbent heat exchanger 23 by passing through the first absorbent heat exchanger 23. The temperature rises due to the heat of the concentrated absorbent.

  The first regenerator 14 is connected to the first condenser 15 via the first refrigerant vapor channel 24. The first condenser 15 and the first evaporator 12 are connected via a first refrigerant recovery channel 25. As a result, the refrigerant vapor generated in the first regenerator 14 is liquefied by the first condenser 15 and sent again to the first evaporator 12 to re-cool the cold water in the first evaporator 12. It has come to be used.

  The first type absorption heat pump 2 includes a second evaporator 31 in which a refrigerant (for example, water) is stored, and a second absorber 32 in which an absorption liquid (for example, lithium bromide) that absorbs the refrigerant is stored. The second regenerator 33 that evaporates the refrigerant from the absorbing liquid containing the refrigerant (diluted absorbing liquid) and separates it from the absorbing liquid, and the refrigerant vapor generated in the second regenerator 33 is condensed and liquefied, and the heat of condensation And a second condenser 34 for heating hot water, which will be described later.

The second evaporator 31 causes the refrigerant stored inside to take heat of the cooling water in the cooling water flow path 16 to vaporize the refrigerant. That is, the second evaporator 31 exchanges heat between the cooling water and the refrigerant to vaporize the refrigerant and to cool the cooling water in the cooling water channel 16.
The second absorber 32 is connected to the inside of the second evaporator 31 so that the refrigerant vapor generated in the second evaporator 31 is absorbed by the absorbing liquid in the second absorber 32. It has become. Thus, the refrigerant vapor generated in the second evaporator 31 is taken into the second absorber 32, whereby the internal pressure of the second evaporator 31 is maintained in a high vacuum state. The evaporation of the refrigerant continues.

Here, the first type absorption heat pump 2 is provided with a hot water flow path 35 in which hot water is circulated and circulated, and the hot water flowing in the hot water flow path 35 is absorbed by the absorbent in the second absorber 32. Deprived of heat and heated.
In the present embodiment, the hot water flowing through the hot water flow path 35 is used for condensing the refrigerant in the second condenser 34.
Furthermore, in this embodiment, the hot water flow path 35 is inserted through these devices in the order of the second absorber 32, the second condenser 34, and the first regenerator 14. As a result, the warm water flowing through the warm water flow path 35 is heated by the second absorber 32 and the second condenser 34 and supplied to the first regenerator 14 for regenerating the absorbent in the first regenerator 14. It has come to be used.

The second absorber 32 and the second regenerator 33 are connected via a second rare absorbent channel 41, and the rare absorbent used in the second absorber 32 is the second rare absorbent flow. The second regenerator 33 is supplied through the path 41.
Heat for heating the rare absorbent is supplied from the heat source H to the second regenerator 33, whereby the refrigerant in the rare absorbent that is sent from the second absorber 32 into the second regenerator 33. Is evaporated and separated from the absorbing solution.
In the present embodiment, a steam supply source such as a boiler is used as the heat source H, and a part of the steam flow path 42 into which steam is sent from the heat source H is inserted into the second regenerator 33. Thereby, in the 2nd regenerator 33, heat is received from the heat source vapor | steam which distribute | circulates the inside of the vapor | steam flow path 42, a diluted absorption liquid is heated, and a refrigerant | coolant and an absorption liquid are isolate | separated.

The second regenerator 33 and the second absorber 32 are connected via a second absorption liquid recovery flow path 43, and are separated from the refrigerant by the second regenerator 33 and concentrated (concentrated absorption liquid). ) Is collected in the second absorber 32 through the second absorbent collection channel 43 and reused for absorption of the refrigerant.
Further, in the first type absorption heat pump 2, heat exchange is performed between the diluted absorbent flowing in the second diluted absorbent flow path 41 and the concentrated absorbent flowing in the second absorbed liquid recovery flow path 43. A second absorbent liquid heat exchanger 44 is provided. As a result, the rare absorbent flowing through the second rare absorbent flow channel 41 passes through the second absorbent heat exchanger 44 and is returned to the second absorber 32 through the second absorbent heat exchanger 44. The temperature rises due to the heat of the concentrated absorbent.

  The first type absorption heat pump 2 passes through the second absorber 32 and the second condenser 34 in the hot water flow path 35 using the heat of the absorption liquid flowing in the second absorption liquid recovery flow path 43. A hot water heater 45 for heating the cooling water supplied to the first regenerator 14 is provided. In the present embodiment, the hot water heater 45 is connected to the upstream side of the part where heat exchange is performed by the second absorbent liquid heat exchanger 44 in the second absorbent collection path 43.

  The second regenerator 33 is connected to the second condenser 34 via a second refrigerant vapor channel 46. The second condenser 34 and the second evaporator 31 are connected via a second refrigerant recovery channel 47. As a result, the refrigerant vapor generated in the second regenerator 33 is liquefied by the second condenser 34 and sent to the second evaporator 31 again to cool the cold water in the second evaporator 31. It has come to be used.

In the absorption heat pump apparatus 1 configured as described above, the heat of the absorption liquid heated by the second regenerator 33 of the first type absorption heat pump 2 through the hot water heater 45 is converted into that of the single effect absorption refrigerator 3. The first regenerator 14 is supplied. That is, in the absorption heat pump apparatus 1, the heat of the absorbing liquid heated by the second regenerator 33 is used for regeneration of the refrigerant in the first regenerator 14.
Thereby, the regeneration capacity of the refrigerant in the single-effect absorption refrigerator 3 is improved, and the cooling power supply capacity to the low temperature load C is increased.

  Thus, according to this absorption heat pump device 1, the heat of the heat source H not only regenerates the absorption liquid in the second regenerator 33 of the first type absorption heat pump 2 but also the first effect absorption refrigerator 3. Since it is effectively used for the regeneration of the absorbing liquid in the single regenerator 14, even if a low-pressure steam source is used as the heat source H, the ability to supply cold heat to the low temperature load C is improved.

[Second Embodiment]
Next, a second embodiment of the present invention will be described with reference to FIG.
The absorption heat pump device 51 according to the present embodiment is obtained by changing a part of the configuration of the absorption heat pump device 1 shown in the first embodiment. Hereinafter, the same or similar configurations as those of the absorption heat pump apparatus 1 illustrated in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

The absorption heat pump device 51 according to the present embodiment recovers the heat of the vapor drain of the vapor used for the regeneration of the absorbent in the second regenerator 33 in the absorption heat pump device 1 shown in the first embodiment. A heat recovery unit 52 that transmits the absorption liquid supplied to the first regenerator 14 is provided.
In the present embodiment, the heat recovery unit 52 recovers heat from the steam drain that flows through the downstream portion of the second regenerator 33 in the steam flow path 42, and the first absorption in the first diluted absorbent flow path 21. The dilute absorbent is supplied to the diluted absorbent supplied to the first regenerator 14 through the liquid heat exchanger 23.

In the absorption heat pump device 51 configured as described above, the heat of the vapor drain of the steam used for heating the absorption liquid in the second regenerator 33 of the first type absorption heat pump 2 is passed through the heat recovery device 52. It is transmitted to the absorbent supplied to the first regenerator 14 of the single effect absorption refrigerator 3.
That is, in this absorption heat pump device 51, the temperature of the absorbing liquid supplied to the first regenerator 14 rises, so that the absorption liquid in the first regenerator 14 is regenerated through the second cooling water channel 35. The amount of heat supplied to the first regenerator 14 (the amount of heat supplied to the first regenerator 14 by the first type absorption heat pump 2 itself) can be smaller than before, and the efficiency of the absorption heat pump device 51 is improved.

  In the present embodiment, the heat recovery unit 52 supplies the heat recovered from the vapor drain to the second regenerator 33 through the second absorption liquid heat exchanger 44 in the second diluted absorption liquid channel 41. It is also configured to supply to the diluted absorbent. As a result, the temperature of the diluted absorbent supplied to the second regenerator 33 is further increased, the regeneration of the absorbent by the second regenerator 33 is more effectively performed, and the efficiency is improved.

  Here, also in the absorption heat pump apparatus 51 according to the present embodiment, an example in which the hot water heater 45 is provided in the same manner as the absorption heat pump apparatus 1 illustrated in the first embodiment is shown, but not limited thereto, In the absorption heat pump device 51 according to the present embodiment, the hot water heater 45 may be omitted.

It is a block diagram which shows the structure of the multiple effect absorption refrigerator which concerns on 1st embodiment of this invention. It is a block diagram which shows the structure of the multiple effect absorption refrigerator which concerns on 2nd embodiment of this invention.

Explanation of symbols

1,51 Absorption-type heat pump device 2 First-class absorption heat pump 3 Single-effect absorption refrigerator 11 Cold water flow path 12 First evaporator 13 First absorber 14 First regenerator 15 First condenser 16 Cooling water flow path 31 Second Evaporator 32 Second absorber 33 Second regenerator 34 Second condenser 35 Hot water flow path 45 Hot water heater 52 Heat recovery device

Claims (3)

A first type absorption heat pump that extracts low-temperature heat with high efficiency from a high-temperature heat source;
A single-effect absorption refrigerator that generates cold by using the heat extracted by the first-type absorption heat pump and supplies it to a low-temperature load;
The single-effect absorption refrigerator includes a cold water passage through which cold water for supplying cold heat to the low-temperature load is circulated,
A first evaporator that stores therein a refrigerant that evaporates by taking heat of the cold water in the cold water flow path, and performs heat exchange between the cold water and the refrigerant;
A first absorber that is connected to the first evaporator and stores therein an absorbing liquid that absorbs the refrigerant, and that absorbs the refrigerant vapor into the absorbing liquid;
A first regenerator for evaporating the refrigerant from the absorption liquid used in the first absorber and separating it from the absorption liquid;
A first condenser that condenses and liquefies the refrigerant vapor generated in the first regenerator;
A cooling water flow path through which cooling water for supplying cold heat to the first absorber is circulated,
The first type absorption heat pump includes a second evaporator that stores therein a refrigerant that evaporates by taking heat of the cooling water in the cooling water flow path, and performs heat exchange between the cooling water and the refrigerant When,
A second absorber that is internally connected to the second evaporator and stores therein an absorbing liquid that absorbs the refrigerant, and that absorbs the refrigerant vapor into the absorbing liquid;
A second regenerator for evaporating the refrigerant from the absorption liquid used in the second absorber and separating it from the absorption liquid;
A second condenser that condenses and liquefies the refrigerant vapor generated in the second regenerator, and heats hot water with the heat of condensation;
A hot water flow path through which hot water heated by the second absorber and the second condenser and supplied to the first regenerator is circulated;
An absorption type having a hot water heater for transferring heat of the absorbent separated from the refrigerant in the second regenerator to the hot water that has passed through the second absorber in the hot water flow path Heat pump device. A first type absorption heat pump that extracts heat from the heat source steam;
A single-effect absorption refrigerator that generates cold by using the heat extracted by the first-type absorption heat pump and supplies it to a low-temperature load;
The single-effect absorption refrigerator includes a cold water passage through which cold water for supplying cold heat to the low-temperature load is circulated,
A first evaporator that stores therein a refrigerant that evaporates by taking heat of the cold water in the cold water flow path, and performs heat exchange between the cold water and the refrigerant;
A first absorber that is connected to the first evaporator and stores therein an absorbing liquid that absorbs the refrigerant, and that absorbs the refrigerant vapor into the absorbing liquid;
A first regenerator for evaporating the refrigerant from the absorption liquid used in the first absorber and separating it from the absorption liquid;
A first condenser that condenses and liquefies the refrigerant vapor generated in the first regenerator;
A cooling water flow path through which cooling water for supplying cold heat to the first absorber is circulated,
The first type absorption heat pump includes a second evaporator that stores therein a refrigerant that evaporates by taking heat of the cooling water in the cooling water flow path, and performs heat exchange between the cooling water and the refrigerant When,
A second absorber that is internally connected to the second evaporator and stores therein an absorbing liquid that absorbs the refrigerant, and that absorbs the refrigerant vapor into the absorbing liquid;
A second regenerator that evaporates the refrigerant and separates it from the absorbing liquid by heating the absorbing liquid used in the second absorber with the heat of the heat source vapor;
A second condenser that condenses and liquefies the refrigerant vapor generated in the second regenerator, and heats hot water with the heat of condensation;
A hot water flow path through which the hot water is circulated and supplied to the first regenerator by being heated by the second absorber and the second condenser;
A heat recovery unit that recovers heat of the steam drain of the heat source steam used for regeneration of the absorption liquid in the second regenerator and transmits the heat to the absorption liquid supplied to the first regenerator. Absorption heat pump device.   The hot water heater which transmits the heat | fever of the said absorption liquid isolate | separated from the said refrigerant | coolant with the said 2nd regenerator with respect to the said warm water which passed through the said 2nd absorber in the said warm water flow path. An absorption heat pump device according to claim 1.

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