JP2014190680A - Absorption heat pump - Google Patents

Absorption heat pump Download PDF

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JP2014190680A
JP2014190680A JP2013069439A JP2013069439A JP2014190680A JP 2014190680 A JP2014190680 A JP 2014190680A JP 2013069439 A JP2013069439 A JP 2013069439A JP 2013069439 A JP2013069439 A JP 2013069439A JP 2014190680 A JP2014190680 A JP 2014190680A
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pressure
absorber
low
evaporator
refrigerant vapor
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Atsushi Aoyama
淳 青山
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Ebara Refrigeration Equipment and Systems Co Ltd
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Ebara Refrigeration Equipment and Systems Co Ltd
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00—Adapting or protecting infrastructure or their operation
    • Y02A30/27—Relating to heating, ventilation or air conditioning [HVAC] technologies
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/62—Absorption based systems

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Abstract

PROBLEM TO BE SOLVED: To provide an absorption heat pump that generally levels loads of a plurality of absorbers.SOLUTION: An absorption heat pump 1 comprises: a first absorber 110 that allows a heating target medium W to remove absorption heat generated when a first absorbent fluid Sw2 absorbs first refrigerant steam Ve1; a second absorber 210 that allows the heating target medium W to remove absorption heat generated when a second absorbent fluid Sa absorbs second refrigerant steam Ve2; and a condenser that introduces at least either refrigerant steam Vg separated from a first diluted fluid Sw1 or refrigerant steam Vg desorbed from a second diluted fluid Sw2, and that condenses the introduced refrigerant steam Vg by allowing the heating target medium W to remove heat held in the introduced refrigerant steam Vg. The heating target medium W is distributed to the first absorber 110 and the second absorber 210, and the heating target medium W discharged from the first absorber 110 and the heating target medium W discharged from the second absorber 210 are supplied to the condenser 40.

Description

本発明は吸収ヒートポンプに関し、特に複数段の吸収器の負荷を概ね平準化する吸収ヒートポンプに関する。   The present invention relates to an absorption heat pump, and more particularly to an absorption heat pump that generally leveles the load of a plurality of stages of absorbers.

低温の熱源から熱を汲み上げて被加熱媒体を加熱する機器であるヒートポンプのうち、熱駆動のものとして、吸収ヒートポンプが知られている。吸収ヒートポンプには、熱源として投入した熱量より多くの熱量を得る増熱型のヒートポンプである第一種吸収ヒートポンプと、駆動熱源温度より高い温度の被加熱媒体を取り出す昇温型のヒートポンプである第二種吸収ヒートポンプとがある。第一種吸収ヒートポンプは、冷媒液を蒸発させる蒸発器、冷媒蒸気を溶液で吸収させる吸収器、溶液から冷媒を離脱させる再生器、冷媒蒸気を凝縮させる凝縮器を主要構成として備え、凝縮圧力が蒸発圧力よりも高くなるように構成されている。また、蒸発器及び吸収器を、圧力の高い高段側と、圧力の低い低段側との多段に構成した多段吸収ヒートポンプがある。   An absorption heat pump is known as a heat-driven heat pump that is a device that pumps heat from a low-temperature heat source and heats a medium to be heated. The absorption heat pump is a first type absorption heat pump that is a heat increase type heat pump that obtains a larger amount of heat than the amount of heat input as a heat source, and a temperature rising type heat pump that takes out a heated medium at a temperature higher than the driving heat source temperature. There are two types of absorption heat pumps. The first type absorption heat pump mainly comprises an evaporator for evaporating refrigerant liquid, an absorber for absorbing refrigerant vapor with a solution, a regenerator for removing the refrigerant from the solution, and a condenser for condensing the refrigerant vapor. It is comprised so that it may become higher than an evaporation pressure. In addition, there is a multistage absorption heat pump in which the evaporator and the absorber are configured in multiple stages of a high pressure side having a high pressure and a low pressure side having a low pressure.

図４に示すように、従来の多段吸収ヒートポンプ９１では、被加熱媒体Ｗを、まず高段側の吸収器１１０に供給して加熱し、次いで低段側の吸収器２１０に供給して加熱し、その後凝縮器４０に供給して加熱し、凝縮器４０で加熱した被加熱媒体Ｗを外部へ供給していた。換言すれば、高段側の吸収器１１０及び低段側の吸収器２１０に対して被加熱媒体Ｗを直列に供給していた。なお、従来の多段吸収ヒートポンプ９１では、高段側の吸収器１１０と高段側の蒸発器１２０とが水平方向に近接して配置され、これらの鉛直上方に低段側の吸収器２１０と低段側の蒸発器２２０とが水平方向に近接して配置され、これらの鉛直上方に凝縮器４０と再生器３０とが配置され、熱源となる温水ｈが高段側の蒸発器１２０及び低段側の蒸発器２２０に対して直列に供給されている。   As shown in FIG. 4, in the conventional multistage absorption heat pump 91, the heated medium W is first supplied to the high-stage absorber 110 and heated, and then supplied to the low-stage absorber 210 and heated. Then, it supplied to the condenser 40 and heated, and the to-be-heated medium W heated with the condenser 40 was supplied outside. In other words, the heated medium W is supplied in series to the high-stage absorber 110 and the low-stage absorber 210. In the conventional multi-stage absorption heat pump 91, the high-stage absorber 110 and the high-stage evaporator 120 are arranged close to each other in the horizontal direction, and the low-stage absorber 210 and the low-stage absorber 210 are disposed above these vertically. The stage-side evaporator 220 is disposed close to the horizontal direction, the condenser 40 and the regenerator 30 are disposed vertically above them, and the hot water h serving as a heat source is supplied to the high-stage evaporator 120 and the low-stage evaporator. It is supplied in series to the evaporator 220 on the side.

従来の多段吸収ヒートポンプは、低段側の吸収器に供給される被加熱媒体の入口温度が高段側の吸収器に供給される被加熱媒体の入口温度よりも高くなるため、高段側の吸収器に低段側の吸収器よりも大きな負荷がかかり、高段側の吸収器の負荷と低段側の吸収器の負荷との間に不均衡が生じていた。   In the conventional multi-stage absorption heat pump, the inlet temperature of the heated medium supplied to the lower stage absorber is higher than the inlet temperature of the heated medium supplied to the higher stage absorber. A larger load was applied to the absorber than the absorber on the lower stage side, and an imbalance occurred between the load on the higher stage side absorber and the load on the lower stage side absorber.

本発明は上述の課題に鑑み、複数段の吸収器の負荷を概ね平準化する吸収ヒートポンプを提供することを目的とする。   In view of the above-described problems, an object of the present invention is to provide an absorption heat pump that approximately equalizes the load of a plurality of stages of absorbers.

上記目的を達成するために、本発明の第１の態様に係る吸収ヒートポンプは、例えば図１に示すように、第１の吸収液Ｓｗ２に第１の冷媒蒸気Ｖｅ１を吸収させ、第１の吸収液Ｓｗ２が第１の冷媒蒸気Ｖｅ１を吸収する際に生じる吸収熱を被加熱媒体Ｗに奪わせる第１の吸収器１１０と；第２の吸収液Ｓａに第２の冷媒蒸気Ｖｅ２を吸収させ、第２の吸収液Ｓａが第２の冷媒蒸気Ｖｅ２を吸収する際に生じる吸収熱を被加熱媒体Ｗに奪わせる第２の吸収器２１０であって、第１の吸収器１１０よりも作動圧力が低い第２の吸収器２１０と；第１の吸収器１１０で第１の吸収液Ｓｗ２が第１の冷媒蒸気Ｖｅ１を吸収して生じた第１の希溶液Ｓｗ１から離脱された冷媒蒸気Ｖｇ、及び第２の吸収器２１０で第２の吸収液Ｓａ２が第２の冷媒蒸気Ｖｅ２を吸収して生じた第２の希溶液Ｓｗ２から離脱された冷媒蒸気Ｖｇの少なくとも一方を導入し、導入した冷媒蒸気Ｖｇが保有する熱を被加熱媒体Ｗに奪わせて導入した冷媒蒸気Ｖｇを凝縮させる凝縮器４０とを備え；被加熱媒体Ｗが第１の吸収器１１０及び第２の吸収器２１０に分配され、第１の吸収器１１０から導出された被加熱媒体Ｗ及び第２の吸収器２１０から導出された被加熱媒体Ｗが凝縮器４０に供給されるように構成されている。   In order to achieve the above object, the absorption heat pump according to the first aspect of the present invention causes the first absorption liquid Sw2 to absorb the first refrigerant vapor Ve1, for example, as shown in FIG. A first absorber 110 that causes the heated medium W to absorb absorption heat generated when the liquid Sw2 absorbs the first refrigerant vapor Ve1, and a second absorption liquid Sa that absorbs the second refrigerant vapor Ve2. A second absorber 210 that causes the heated medium W to absorb absorbed heat generated when the second absorbing liquid Sa absorbs the second refrigerant vapor Ve2, and has an operating pressure higher than that of the first absorber 110. A low second absorber 210; a refrigerant vapor Vg desorbed from the first dilute solution Sw1 generated by the first absorber 110 absorbing the first refrigerant vapor Ve1 in the first absorber 110, and In the second absorber 210, the second absorbing liquid Sa2 is converted into the second refrigerant vapor V. The refrigerant vapor Vg introduced by introducing at least one of the refrigerant vapor Vg released from the second dilute solution Sw2 generated by absorbing 2 and causing the heated medium W to take away the heat held by the introduced refrigerant vapor Vg. The heated medium W is distributed to the first absorber 110 and the second absorber 210, and is heated from the first absorber 110 and the second medium. The heated medium W led out from the absorber 210 is configured to be supplied to the condenser 40.

このように構成すると、第１の吸収器に導入される被加熱媒体と第２の吸収器に導入される被加熱媒体との入口温度が同じになるため、第１の吸収器の負荷と第２の吸収器の負荷とを概ね平準化することができる。   If comprised in this way, since the inlet_port | entrance temperature of the to-be-heated medium introduced into a 1st absorber and the to-be-heated medium introduced into a 2nd absorber becomes the same, the load of a 1st absorber and the 1st The load of the second absorber can be approximately leveled.

また、本発明の第２の態様に係る吸収ヒートポンプは、例えば図３に示すように、上記本発明の第１の態様に係る吸収ヒートポンプにおいて、凝縮器が、第１の希溶液Ｓｗ１から離脱された冷媒蒸気Ｖｇ１を導入し、導入した冷媒蒸気Ｖｇ１が保有する熱を被加熱媒体Ｗに奪わせて導入した冷媒蒸気Ｖｇ１を凝縮させる第１の凝縮器１４０と、第２の希溶液Ｓｗ２から離脱された冷媒蒸気Ｖｇ２を導入し、導入した冷媒蒸気Ｖｇ２が保有する熱を被加熱媒体Ｗに奪わせて導入した冷媒蒸気Ｖｇ２を凝縮させる第２の凝縮器２４０と、を含んで構成され；第１の吸収器１１０から導出された被加熱媒体Ｗが第１の凝縮器１４０に供給され；第２の吸収器２１０から導出された被加熱媒体Ｗが第２の凝縮器２４０に供給されるように構成されている。   Further, the absorption heat pump according to the second aspect of the present invention is, for example, as shown in FIG. 3, in the absorption heat pump according to the first aspect of the present invention, the condenser is detached from the first dilute solution Sw1. From the first condenser 140 for condensing the refrigerant vapor Vg1 introduced by causing the heated medium W to take in the heat held by the refrigerant vapor Vg1 and the second dilute solution Sw2. A second condenser 240 that introduces the introduced refrigerant vapor Vg2 and condenses the refrigerant vapor Vg2 introduced by causing the heated medium W to take away the heat held by the introduced refrigerant vapor Vg2; The heated medium W derived from the first absorber 110 is supplied to the first condenser 140; the heated medium W derived from the second absorber 210 is supplied to the second condenser 240. Configured to .

このように構成すると、第１の吸収器の圧力と第２の吸収器の圧力との差を適切に維持することができる。   If comprised in this way, the difference of the pressure of a 1st absorber and the pressure of a 2nd absorber can be maintained appropriately.

また、本発明の第３の態様に係る吸収ヒートポンプは、例えば図１に示すように、上記本発明の第１の態様又は第２の態様に係る吸収ヒートポンプ１において、被冷却媒体ｃの熱で冷媒液Ｖｆを蒸発させて第１の冷媒蒸気Ｖｅ１を生成する第１の蒸発器１２０であって、冷媒液Ｖｆ及び第１の冷媒蒸気Ｖｅ１を収容する第１の蒸発器缶胴１２７と、第１の蒸発器缶胴１２７内の液滴の第１の吸収器１１０への飛散を防ぐ第１のエリミネータ１２５と、被冷却媒体ｃの流路を形成する第１の被冷却媒体流路形成部材１２１と、を有する第１の蒸発器１２０と；被冷却媒体ｃの熱で冷媒液Ｖｆを蒸発させて第２の冷媒蒸気Ｖｅ２を生成する第２の蒸発器２２０であって、冷媒液Ｖｆ及び第２の冷媒蒸気Ｖｅ２を収容する第２の蒸発器缶胴２２７と、第２の蒸発器缶胴２２７内の液滴の第２の吸収器２１０への飛散を防ぐ第２のエリミネータ２２５と、被冷却媒体ｃの流路を形成する第２の被冷却媒体流路形成部材２２１と、を有する第２の蒸発器２２０とを備え；被冷却媒体ｃが、第１の蒸発器１２０に供給され、第１の蒸発器１２０から導出された被冷却媒体ｃが第２の蒸発器２２０に供給されるように構成され；第１の吸収器１１０が、被加熱媒体Ｗの流路を形成する第１の被加熱媒体流路形成部材１１１及び第１の希溶液Ｓｗ１を収容する第１の吸収器缶胴１１７を有し；第２の吸収器２１０が、被加熱媒体Ｗの流路を形成する第２の被加熱媒体流路形成部材２１１及び第２の希溶液Ｓｗ２を収容する第２の吸収器缶胴２１７を有し；第１の蒸発器缶胴１２７及び第２の蒸発器缶胴２２７が、第１の吸収器缶胴１１７及び第２の吸収器缶胴２１７よりも上方に配置されている。   Moreover, the absorption heat pump according to the third aspect of the present invention is the absorption heat pump 1 according to the first aspect or the second aspect of the present invention described above, for example, as shown in FIG. A first evaporator 120 for generating a first refrigerant vapor Ve1 by evaporating the refrigerant liquid Vf, a first evaporator can body 127 containing the refrigerant liquid Vf and the first refrigerant vapor Ve1, A first eliminator 125 for preventing droplets in one evaporator can body 127 from scattering to the first absorber 110, and a first cooled medium flow path forming member that forms a flow path of the cooled medium c. 121, a second evaporator 220 that generates the second refrigerant vapor Ve2 by evaporating the refrigerant liquid Vf with the heat of the medium c to be cooled, the refrigerant liquid Vf and A second evaporator can body 227 containing the second refrigerant vapor Ve2; The second eliminator 225 for preventing the droplets in the second evaporator can body 227 from scattering to the second absorber 210 and the second cooled medium flow path forming the flow path of the cooled medium c And a second evaporator 220 having a member 221; the medium c to be cooled is supplied to the first evaporator 120, and the medium c to be cooled derived from the first evaporator 120 is the second It is configured to be supplied to the evaporator 220; the first absorber 110 contains the first heated medium flow path forming member 111 that forms the flow path of the heated medium W and the first dilute solution Sw1. The second absorber 210 has a second heated medium flow path forming member 211 and a second dilute solution Sw2 that form a flow path of the heated medium W. A second absorber can body 217 for housing; a first evaporator can body 127 and a second evaporator can 227 is disposed above the first absorber can barrel 117 and the second absorber can body 217.

このように構成すると、第１の吸収器缶胴内の液滴及び第２の吸収器缶胴内の液滴が蒸発器に飛散するのを防ぐエリミネータを省略することができる。   If comprised in this way, the eliminator which prevents the droplet in a 1st absorber can body and the droplet in a 2nd absorber can body from scattering to an evaporator can be abbreviate | omitted.

本発明によれば、第１の吸収器に導入される被加熱媒体と第２の吸収器に導入される被加熱媒体との入口温度が同じになるため、第１の吸収器の負荷と第２の吸収器の負荷とを概ね平準化することができる。   According to the present invention, since the inlet temperatures of the heated medium introduced into the first absorber and the heated medium introduced into the second absorber are the same, the load of the first absorber and the first The load of the second absorber can be approximately leveled.

（Ａ）は本発明の実施の形態に係る吸収ヒートポンプの概略構成図、（Ｂ）は高圧吸収器及び高圧蒸発器の部分詳細図である。(A) is a schematic block diagram of the absorption heat pump which concerns on embodiment of this invention, (B) is a partial detail drawing of a high pressure absorber and a high pressure evaporator. 本発明の実施の形態に係る吸収ヒートポンプのデューリング線図である。It is a Duhring diagram of the absorption heat pump concerning an embodiment of the invention. 本発明の実施の形態の変形例に係る吸収ヒートポンプの概略構成図である。It is a schematic block diagram of the absorption heat pump which concerns on the modification of embodiment of this invention. 従来の吸収ヒートポンプの概略構成図である。It is a schematic block diagram of the conventional absorption heat pump.

以下、図面を参照して本発明の実施の形態について説明する。なお、各図において互いに同一又は相当する部材には同一あるいは類似の符号を付し、重複した説明は省略する。   Embodiments of the present invention will be described below with reference to the drawings. In the drawings, the same or similar members are denoted by the same or similar reference numerals, and redundant description is omitted.

まず図１を参照して、本発明の実施の形態に係る吸収ヒートポンプ１を説明する。図１（Ａ）は吸収ヒートポンプ１の概略構成図、図１（Ｂ）は高圧吸収器１１０及び高圧蒸発器１２０の部分詳細図である。吸収ヒートポンプ１は、増熱型の第一種吸収ヒートポンプである。また、吸収ヒートポンプ１は、吸収器及び蒸発器が、それぞれ高段側と低段側との２段を有する２段吸収ヒートポンプである。吸収ヒートポンプ１は、吸収ヒートポンプサイクルを行う主要構成機器として、第１の吸収器としての高圧吸収器１１０、第２の吸収器としての低圧吸収器２１０、第１の蒸発器としての高圧蒸発器１２０、第２の蒸発器としての低圧蒸発器２２０、再生器３０、及び凝縮器４０とを備えている。   First, an absorption heat pump 1 according to an embodiment of the present invention will be described with reference to FIG. FIG. 1A is a schematic configuration diagram of the absorption heat pump 1, and FIG. 1B is a partial detailed view of the high-pressure absorber 110 and the high-pressure evaporator 120. The absorption heat pump 1 is a heat increase type first-type absorption heat pump. The absorption heat pump 1 is a two-stage absorption heat pump in which the absorber and the evaporator each have two stages of a high stage side and a low stage side. The absorption heat pump 1 includes a high-pressure absorber 110 as a first absorber, a low-pressure absorber 210 as a second absorber, and a high-pressure evaporator 120 as a first evaporator as main components that perform an absorption heat pump cycle. And a low-pressure evaporator 220 as a second evaporator, a regenerator 30, and a condenser 40.

吸収ヒートポンプ１は、吸収液に対して冷媒が相変化をしながら循環することで熱移動を行わせ、被加熱媒体を昇温させる機器である。以下の説明において、吸収液に関し、ヒートポンプサイクル上における区別を容易にするために、性状やヒートポンプサイクル上の位置に応じて、「高圧希溶液Ｓｗ１」、「低圧希溶液Ｓｗ２」、「濃溶液Ｓａ」等と呼称するが、性状等を不問にするときは総称して「溶液Ｓ」ということとする。また、冷媒に関し、ヒートポンプサイクル上における区別を容易にするために、性状やヒートポンプサイクル上の位置に応じて、「高圧冷媒蒸気Ｖｅ１」、「低圧冷媒蒸気Ｖｅ２」、「再生器冷媒蒸気Ｖｇ」、「冷媒液Ｖｆ」等と呼称するが、性状等を不問にするときは総称して「冷媒Ｖ」ということとする。本実施の形態では、溶液Ｓ（吸収剤と冷媒との混合物）としてＬｉＢｒ水溶液が用いられており、冷媒Ｖとして水（Ｈ２Ｏ）が用いられており、被加熱媒体Ｗとして水（Ｈ２Ｏ）が用いられているが、被加熱媒体Ｗとして水（Ｈ２Ｏ）以外の流体を使用することもできる。 The absorption heat pump 1 is a device that causes a heat transfer to occur by circulating a refrigerant while undergoing a phase change with respect to an absorption liquid, and raises the temperature of a medium to be heated. In the following description, in order to easily distinguish the absorption liquid on the heat pump cycle, the “high pressure dilute solution Sw1”, “low pressure dilute solution Sw2”, “concentrated solution Sa” are selected according to the properties and the position on the heat pump cycle. However, when the property or the like is unquestioned, it is generally referred to as “solution S”. Further, regarding the refrigerant, in order to facilitate the distinction on the heat pump cycle, “high pressure refrigerant vapor Ve1”, “low pressure refrigerant vapor Ve2”, “regenerator refrigerant vapor Vg”, depending on the properties and the position on the heat pump cycle, Although it is referred to as “refrigerant liquid Vf” or the like, it is generally referred to as “refrigerant V” when the property or the like is not questioned. In this embodiment, the solution S and LiBr solution is used as (a mixture of absorbent and refrigerant), and water (H 2 O) is used as the refrigerant V, water as the heated medium W (H 2 O) is used, but a fluid other than water (H 2 O) can be used as the heated medium W.

高圧吸収器１１０は、被加熱媒体Ｗの流路を形成する第１の被加熱媒体流路形成部材としての高圧加熱管１１１と、溶液Ｓを散布する高圧溶液散布ノズル１１２とを、第１の吸収器缶胴としての高圧吸収器缶胴１１７の内部に有している。高圧溶液散布ノズル１１２は、散布した溶液Ｓが高圧加熱管１１１に降りかかるように高圧加熱管１１１の上方に配設されている。高圧吸収器１１０は、高圧溶液散布ノズル１１２から溶液Ｓが散布され、溶液Ｓが高圧冷媒蒸気Ｖｅ１を吸収する際に吸収熱を発生させる。この吸収熱を、高圧加熱管１１１を流れる被加熱媒体Ｗが受熱して、被加熱媒体Ｗが加熱されるように構成されている。高圧吸収器缶胴１１７は、散布された溶液Ｓが高圧冷媒蒸気Ｖｅ１を吸収して濃度が低下した高圧希溶液Ｓｗ１（第１の希溶液に相当）が下部に貯留されるように構成されている。   The high pressure absorber 110 includes a high pressure heating pipe 111 as a first heated medium flow path forming member that forms a flow path of the heated medium W, and a high pressure solution spray nozzle 112 that sprays the solution S. It has in the inside of the high voltage | pressure absorber can body 117 as an absorber can body. The high-pressure solution spray nozzle 112 is disposed above the high-pressure heating tube 111 so that the sprayed solution S falls on the high-pressure heating tube 111. The high pressure absorber 110 generates heat of absorption when the solution S is sprayed from the high pressure solution spray nozzle 112 and the solution S absorbs the high pressure refrigerant vapor Ve1. The heated medium W that flows through the high-pressure heating tube 111 receives this absorbed heat, and the heated medium W is heated. The high-pressure absorber can body 117 is configured such that the sprayed solution S absorbs the high-pressure refrigerant vapor Ve1 and the high-pressure dilute solution Sw1 (corresponding to the first dilute solution) having a reduced concentration is stored in the lower part. Yes.

低圧吸収器２１０は、外見上の構成が、高圧吸収器１１０と同様になっている。低圧吸収器２１０は、高圧吸収器１１０における高圧加熱管１１１、高圧溶液散布ノズル１１２、高圧吸収器缶胴１１７に対応する構成として、第２の被加熱媒体流路形成部材としての低圧加熱管２１１、低圧溶液散布ノズル２１２、第２の吸収器缶胴としての低圧吸収器缶胴２１７をそれぞれ有している。低圧吸収器２１０は、低圧溶液散布ノズル２１２から散布された溶液Ｓが、低圧冷媒蒸気Ｖｅ２を吸収する際に吸収熱を発生させ、溶液Ｓが低圧冷媒蒸気Ｖｅ２を吸収して濃度が低下した低圧希溶液Ｓｗ２（第２の希溶液に相当）が低圧吸収器缶胴２１７の下部に貯留されるように構成されている。低圧吸収器２１０は、高圧吸収器１１０に対して、水平方向に近接して配設されている。   The low pressure absorber 210 has the same external configuration as the high pressure absorber 110. The low-pressure absorber 210 has a configuration corresponding to the high-pressure heating tube 111, the high-pressure solution spray nozzle 112, and the high-pressure absorber can body 117 in the high-pressure absorber 110, and the low-pressure heating tube 211 as a second heated medium flow path forming member. , A low-pressure solution spray nozzle 212, and a low-pressure absorber can body 217 as a second absorber can body. The low-pressure absorber 210 generates a heat of absorption when the solution S sprayed from the low-pressure solution spray nozzle 212 absorbs the low-pressure refrigerant vapor Ve2, and the solution S absorbs the low-pressure refrigerant vapor Ve2 to reduce the concentration. The dilute solution Sw <b> 2 (corresponding to the second dilute solution) is configured to be stored in the lower portion of the low-pressure absorber can body 217. The low pressure absorber 210 is disposed close to the high pressure absorber 110 in the horizontal direction.

高圧蒸発器１２０は、冷媒液Ｖｆを加熱する被冷却媒体としての冷水ｃの流路を形成する第１の被冷却媒体流路形成部材としての高圧冷水管１２１と、冷媒液Ｖｆを散布する高圧冷媒液散布ノズル１２２とを、第１の蒸発器缶胴としての高圧蒸発器缶胴１２７の内部に有している。高圧冷媒液散布ノズル１２２は、散布した冷媒液Ｖｆが高圧冷水管１２１に降りかかるように、高圧冷水管１２１の上方に配設されている。高圧蒸発器１２０は、高圧冷媒液散布ノズル１２２から冷媒液Ｖｆが散布され、散布された冷媒液Ｖｆが高圧冷水管１２１内を流れる冷水ｃから熱を奪って蒸発して高圧冷媒蒸気Ｖｅ１が発生するように構成されている。高圧冷媒蒸気Ｖｅ１は、高圧蒸発器１２０で生成される冷媒の蒸気であり、第１の冷媒蒸気に相当する。高圧蒸発器１２０は、散布された冷媒液Ｖｆのうち蒸発しなかった冷媒液Ｖｆが下部に貯留されるように構成されている。   The high-pressure evaporator 120 has a high-pressure cold water pipe 121 as a first cooled medium flow path forming member that forms a flow path of cold water c as a cooled medium that heats the refrigerant liquid Vf, and a high pressure that sprays the refrigerant liquid Vf. The refrigerant | coolant liquid spraying nozzle 122 has in the inside of the high pressure evaporator can body 127 as a 1st evaporator can body. The high-pressure refrigerant liquid spray nozzle 122 is disposed above the high-pressure cold water pipe 121 so that the sprayed refrigerant liquid Vf falls on the high-pressure cold water pipe 121. In the high-pressure evaporator 120, the refrigerant liquid Vf is sprayed from the high-pressure refrigerant liquid spray nozzle 122, and the sprayed refrigerant liquid Vf takes heat from the cold water c flowing in the high-pressure cold water pipe 121 and evaporates to generate a high-pressure refrigerant vapor Ve1. Is configured to do. The high-pressure refrigerant vapor Ve1 is a refrigerant vapor generated by the high-pressure evaporator 120 and corresponds to the first refrigerant vapor. The high-pressure evaporator 120 is configured such that the refrigerant liquid Vf that has not evaporated out of the dispersed refrigerant liquid Vf is stored in the lower part.

低圧蒸発器２２０は、外見上の構成が、高圧蒸発器１２０と同様になっている。低圧蒸発器２２０は、高圧蒸発器１２０における高圧冷水管１２１、高圧冷媒液散布ノズル１２２、高圧蒸発器缶胴１２７に対応する構成として、第２の被冷却媒体流路形成部材としての低圧冷水管２２１、低圧冷媒液散布ノズル２２２、第２の蒸発器缶胴としての低圧蒸発器缶胴２２７をそれぞれ有している。低圧蒸発器２２０は、低圧冷媒液散布ノズル２２２から散布された冷媒液Ｖが、低圧冷水管２２１内を流れる冷水ｃから熱を奪って蒸発して低圧冷媒蒸気Ｖｅ２が発生し、散布された冷媒液Ｖｆのうち蒸発しなかった冷媒液Ｖｆが低圧蒸発器缶胴２２７の下部に貯留されるように構成されている。低圧冷媒蒸気Ｖｅ２は、低圧蒸発器２２０で生成される冷媒の蒸気であり、第２の冷媒蒸気に相当する。低圧蒸発器２２０は、高圧蒸発器１２０に対して、水平方向に近接して配設されている。   The low-pressure evaporator 220 has the same configuration as the high-pressure evaporator 120 in appearance. The low-pressure evaporator 220 has a configuration corresponding to the high-pressure chilled water pipe 121, the high-pressure refrigerant liquid spray nozzle 122, and the high-pressure evaporator can body 127 in the high-pressure evaporator 120, and the low-pressure chilled water pipe as the second cooled medium flow path forming member. 221, a low-pressure refrigerant liquid spraying nozzle 222, and a low-pressure evaporator can body 227 as a second evaporator can body. In the low-pressure evaporator 220, the refrigerant liquid V sprayed from the low-pressure refrigerant liquid spray nozzle 222 takes heat from the cold water c flowing in the low-pressure cold water pipe 221 and evaporates to generate low-pressure refrigerant vapor Ve2, and the sprayed refrigerant Of the liquid Vf, the refrigerant liquid Vf that has not evaporated is stored in the lower part of the low-pressure evaporator can body 227. The low-pressure refrigerant vapor Ve2 is a refrigerant vapor generated by the low-pressure evaporator 220 and corresponds to the second refrigerant vapor. The low-pressure evaporator 220 is disposed close to the high-pressure evaporator 120 in the horizontal direction.

高圧蒸発器１２０及び低圧蒸発器２２０は、高圧吸収器１１０及び低圧吸収器２１０の鉛直上方に配設されており、詳細には、高圧蒸発器１２０が高圧吸収器１１０の鉛直上方に配設され、低圧蒸発器２２０が低圧吸収器２１０の鉛直上方に配設されている。高圧蒸発器缶胴１２７の上部と高圧吸収器缶胴１１７の上部とは、高圧冷媒蒸気流路１２６を介して連通している。図１（Ａ）では、理解の容易のために高圧吸収器缶胴１１７及び高圧蒸発器缶胴１２７を別体に示した都合上、高圧冷媒蒸気流路１２６が配管のように示されているが、実際は、図１（Ｂ）の部分詳細図に示すように、高圧吸収器缶胴１１７の内部の高圧溶液散布ノズル１１２の上方に高圧蒸発器缶胴１２７が設けられ、高圧吸収器缶胴１１７の内部に区画された高圧蒸発器缶胴１２７の上部が開口されることで、高圧冷媒蒸気流路１２６が形成されている。高圧蒸発器１２０は、高圧冷媒蒸気流路１２６に、高圧蒸発器缶胴１２７内の液滴が高圧吸収器缶胴１１７に飛散するのを抑制する第１のエリミネータとしての高圧エリミネータ１２５を有している。他方、低圧蒸発器缶胴２２７の上部と低圧吸収器缶胴２１７の上部とは、低圧冷媒蒸気流路２２６を介して連通している。なお、詳細図は省略するが、低圧吸収器２１０及び低圧蒸発器２２０も、高圧吸収器１１０及び高圧蒸発器１２０（図１（Ｂ）参照）と同様に、低圧吸収器缶胴２１７の内部の低圧溶液散布ノズル２１２の上方に低圧蒸発器缶胴２２７が設けられ、低圧吸収器缶胴２１７の内部に区画された低圧蒸発器缶胴２２７の上部が開口されて低圧冷媒蒸気流路２２６が形成され、低圧蒸発器２２０は、低圧冷媒蒸気流路２２６に、低圧蒸発器缶胴２２７内の液滴が低圧吸収器缶胴２１７に飛散するのを抑制する第２のエリミネータとしての低圧エリミネータ２２５を有している。なお、高圧蒸発器１２０及び低圧蒸発器２２０が、高圧吸収器１１０及び低圧吸収器２１０の鉛直上方に配設されていることで、高圧吸収器缶胴１１７内の液滴の高圧蒸発器缶胴１２７への飛散、及び低圧吸収器缶胴２１７内の液滴の低圧蒸発器缶胴２２７への飛散を回避することができる。したがって、高圧吸収器１１０及び低圧吸収器２１０には、それぞれ、エリミネータを設けなくて済む。   The high-pressure evaporator 120 and the low-pressure evaporator 220 are disposed vertically above the high-pressure absorber 110 and the low-pressure absorber 210. Specifically, the high-pressure evaporator 120 is disposed vertically above the high-pressure absorber 110. A low-pressure evaporator 220 is disposed vertically above the low-pressure absorber 210. The upper part of the high-pressure evaporator can body 127 and the upper part of the high-pressure absorber can body 117 communicate with each other via a high-pressure refrigerant vapor channel 126. In FIG. 1A, the high-pressure refrigerant can channel 117 and the high-pressure evaporator can body 127 are shown as separate bodies for the sake of easy understanding, and therefore the high-pressure refrigerant vapor channel 126 is shown as a pipe. However, in fact, as shown in the partial detail view of FIG. 1B, a high-pressure evaporator can body 127 is provided above the high-pressure solution spray nozzle 112 inside the high-pressure absorber can body 117, and the high-pressure absorber can body. The upper portion of the high-pressure evaporator can body 127 partitioned inside 117 is opened, so that a high-pressure refrigerant vapor channel 126 is formed. The high pressure evaporator 120 has a high pressure eliminator 125 as a first eliminator that suppresses the droplets in the high pressure evaporator can body 127 from scattering to the high pressure absorber can body 117 in the high pressure refrigerant vapor channel 126. ing. On the other hand, the upper part of the low-pressure evaporator can body 227 and the upper part of the low-pressure absorber can body 217 communicate with each other via a low-pressure refrigerant vapor channel 226. Although not shown in detail, the low-pressure absorber 210 and the low-pressure evaporator 220 are also arranged inside the low-pressure absorber can body 217 in the same manner as the high-pressure absorber 110 and the high-pressure evaporator 120 (see FIG. 1B). A low-pressure evaporator can body 227 is provided above the low-pressure solution spray nozzle 212, and an upper portion of the low-pressure evaporator can body 227 defined inside the low-pressure absorber can body 217 is opened to form a low-pressure refrigerant vapor channel 226. The low-pressure evaporator 220 has a low-pressure eliminator 225 as a second eliminator that suppresses droplets in the low-pressure evaporator can body 227 from being scattered in the low-pressure absorber can body 217 in the low-pressure refrigerant vapor channel 226. Have. The high-pressure evaporator 120 and the low-pressure evaporator 220 are disposed vertically above the high-pressure absorber 110 and the low-pressure absorber 210, so that the high-pressure evaporator can body of droplets in the high-pressure absorber can body 117 can be obtained. It is possible to avoid scattering to 127 and droplets in the low-pressure absorber can body 217 to the low-pressure evaporator can body 227. Therefore, the high pressure absorber 110 and the low pressure absorber 210 do not need to be provided with an eliminator.

再生器３０は、低濃度の溶液Ｓを導入し、加熱することで、溶液Ｓ中の冷媒Ｖを離脱させ、高濃度の溶液Ｓ（以下「濃溶液Ｓａ」という。）を生成する部位である。再生器３０において、溶液Ｓから離脱した冷媒Ｖは蒸気の状態であり、この冷媒Ｖの蒸気を再生器冷媒蒸気Ｖｇということとする。再生器３０は、溶液Ｓを加熱する加熱部３１と、導入した溶液Ｓを貯留する再生器缶胴３７とを有している。加熱部３１は、再生器缶胴３７の内部に配設されている。加熱部３１は、典型的には、バーナーの燃焼熱あるいは外部から導入した蒸気や温水等の熱で、溶液Ｓを加熱することができるように構成されている。再生器３０として、貫流式再生器や煙管型再生器、液管型再生器等を用いることができる。   The regenerator 30 is a part that introduces and heats the low-concentration solution S to release the refrigerant V in the solution S and generates a high-concentration solution S (hereinafter referred to as “concentrated solution Sa”). . In the regenerator 30, the refrigerant V detached from the solution S is in a vapor state, and the vapor of the refrigerant V is referred to as a regenerator refrigerant vapor Vg. The regenerator 30 includes a heating unit 31 that heats the solution S and a regenerator can body 37 that stores the introduced solution S. The heating unit 31 is disposed inside the regenerator can body 37. The heating unit 31 is typically configured to be able to heat the solution S with combustion heat of a burner or heat such as steam or hot water introduced from the outside. As the regenerator 30, a once-through regenerator, a smoke pipe type regenerator, a liquid pipe type regenerator, or the like can be used.

凝縮器４０は、被加熱媒体Ｗの流路を形成する部材である凝縮器加熱管４１と、凝縮器缶胴４７とを有している。凝縮器加熱管４１は、凝縮器缶胴４７の内部に配設されている。凝縮器缶胴４７は、再生器缶胴３７に隣接して配設されている。再生器缶胴３７の上部と凝縮器缶胴４７の上部とは、再生器冷媒蒸気流路３５を介して連通している。凝縮器４０は、再生器冷媒蒸気流路３５を介して再生器３０から再生器冷媒蒸気Ｖｇを導入し、凝縮器加熱管４１を流れる被加熱媒体Ｗに再生器冷媒蒸気Ｖｇの熱を奪わせて、再生器冷媒蒸気Ｖｇを凝縮させて冷媒液Ｖｆにすると共に、被加熱媒体Ｗの温度を上昇させるように構成されている。凝縮器缶胴４７及び再生器缶胴３７は、高圧蒸発器缶胴１２７及び低圧吸収器缶胴２１７の鉛直上方に配設されている。   The condenser 40 includes a condenser heating tube 41 that is a member that forms a flow path of the medium to be heated W, and a condenser can body 47. The condenser heating tube 41 is disposed inside the condenser can body 47. The condenser can body 47 is disposed adjacent to the regenerator can body 37. The upper part of the regenerator can body 37 and the upper part of the condenser can body 47 communicate with each other via a regenerator refrigerant vapor channel 35. The condenser 40 introduces the regenerator refrigerant vapor Vg from the regenerator 30 via the regenerator refrigerant vapor channel 35, and causes the heated medium W flowing through the condenser heating pipe 41 to take the heat of the regenerator refrigerant vapor Vg. Thus, the regenerator refrigerant vapor Vg is condensed into the refrigerant liquid Vf, and the temperature of the heated medium W is increased. The condenser can body 47 and the regenerator can body 37 are disposed vertically above the high pressure evaporator can body 127 and the low pressure absorber can body 217.

高圧吸収器缶胴１１７の底部又は下部と、再生器缶胴３７とは、高圧希溶液管５１で接続されている。高圧希溶液管５１には、高圧希溶液ポンプ５１ｐが配設されている。吸収ヒートポンプ１は、高圧希溶液ポンプ５１ｐにより、高圧吸収器缶胴１１７内の高圧希溶液Ｓｗ１を再生器缶胴３７内に搬送することができるように構成されている。再生器缶胴３７内では、導入された高圧希溶液Ｓｗ１が、入口から出口に移動するに連れて希溶液Ｓｗ中から冷媒Ｖが離脱して濃度が上昇するようになっている。   The bottom or lower portion of the high pressure absorber can body 117 and the regenerator can body 37 are connected by a high pressure dilute solution pipe 51. The high pressure dilute solution pipe 51 is provided with a high pressure dilute solution pump 51p. The absorption heat pump 1 is configured such that the high-pressure dilute solution Sw1 in the high-pressure absorber can body 117 can be conveyed into the regenerator can body 37 by the high-pressure dilute solution pump 51p. In the regenerator can body 37, as the introduced high-pressure dilute solution Sw1 moves from the inlet to the outlet, the refrigerant V is removed from the dilute solution Sw and the concentration is increased.

低圧吸収器缶胴２１７の底部又は下部と、高圧溶液散布ノズル１１２とは、低圧希溶液管５２で接続されている。低圧希溶液管５２には、低圧希溶液ポンプ５２ｐが配設されている。吸収ヒートポンプ１は、低圧希溶液ポンプ５２ｐにより、低圧吸収器缶胴２１７内の低圧希溶液Ｓｗ２を高圧溶液散布ノズル１１２に搬送することができるように構成されている。この構成により、高圧溶液散布ノズル１１２から低圧希溶液Ｓｗ２が散布されることとなるため、吸収ヒートポンプ１では低圧希溶液Ｓｗ２が第１の吸収液に相当する。   The bottom or lower portion of the low-pressure absorber can body 217 and the high-pressure solution spray nozzle 112 are connected by a low-pressure dilute solution pipe 52. The low pressure dilute solution pipe 52 is provided with a low pressure dilute solution pump 52p. The absorption heat pump 1 is configured so that the low-pressure dilute solution Sw2 in the low-pressure absorber can body 217 can be conveyed to the high-pressure solution spray nozzle 112 by the low-pressure dilute solution pump 52p. With this configuration, since the low-pressure dilute solution Sw2 is sprayed from the high-pressure solution spray nozzle 112, the low-pressure dilute solution Sw2 corresponds to the first absorbent in the absorption heat pump 1.

再生器缶胴３７の濃溶液Ｓａが導出される部分と、低圧溶液散布ノズル２１２とは、濃溶液管５３で接続されている。吸収ヒートポンプ１は、高圧希溶液ポンプ５１ｐによって高圧希溶液Ｓｗ１が再生器缶胴３７に搬送され、再生器缶胴３７内で冷媒Ｖが離脱して生成された濃溶液Ｓａが、濃溶液管５３を介して低圧溶液散布ノズル２１２に導入されるように構成されている。この構成により、低圧溶液散布ノズル２１２から濃溶液Ｓａが散布されることとなるため、吸収ヒートポンプ１では濃溶液Ｓａが第２の吸収液に相当する。なお、吸収ヒートポンプ１では、濃溶液Ｓａが低圧冷媒蒸気Ｖｅ２を吸収して低圧希溶液Ｓｗ２が生じ、低圧希溶液Ｓｗ２が高圧冷媒蒸気Ｖｅ１を吸収して高圧希溶液Ｓｗ１が生じるため、高圧希溶液Ｓｗ１には低圧希溶液Ｓｗ２が含まれていると見ることができ、再生器３０で高圧希溶液Ｓｗ１から離脱した冷媒蒸気は、低圧希溶液Ｓｗ２から離脱した冷媒蒸気が含まれていると見ることができる。高圧希溶液管５１及び濃溶液管５３には、高圧希溶液管５１を流れる高圧希溶液Ｓｗ１と濃溶液管５３を流れる濃溶液Ｓａとの間で熱交換を行わせる溶液熱交換器８１が挿入されて配置されている。   A portion of the regenerator can body 37 from which the concentrated solution Sa is led out and the low-pressure solution spray nozzle 212 are connected by a concentrated solution tube 53. In the absorption heat pump 1, the high-pressure dilute solution Sw <b> 1 is conveyed to the regenerator can body 37 by the high-pressure dilute solution pump 51 p, and the concentrated solution Sa generated by the release of the refrigerant V in the regenerator can body 37 is the concentrated solution tube 53. It is configured to be introduced into the low-pressure solution spray nozzle 212 via With this configuration, the concentrated solution Sa is sprayed from the low-pressure solution spray nozzle 212. Therefore, in the absorption heat pump 1, the concentrated solution Sa corresponds to the second absorbing liquid. In the absorption heat pump 1, the concentrated solution Sa absorbs the low-pressure refrigerant vapor Ve2 to generate the low-pressure dilute solution Sw2, and the low-pressure dilute solution Sw2 absorbs the high-pressure refrigerant vapor Ve1 to generate the high-pressure dilute solution Sw1. It can be seen that Sw1 contains the low-pressure dilute solution Sw2, and the refrigerant vapor separated from the high-pressure dilute solution Sw1 by the regenerator 30 is seen to contain the refrigerant vapor separated from the low-pressure dilute solution Sw2. Can do. A solution heat exchanger 81 for performing heat exchange between the high pressure dilute solution Sw1 flowing through the high pressure dilute solution tube 51 and the concentrated solution Sa flowing through the concentrated solution tube 53 is inserted into the high pressure dilute solution tube 51 and the concentrated solution tube 53. Has been placed.

凝縮器缶胴４７の底部又は下部と高圧蒸発器缶胴１２７とは、凝縮冷媒液管５４で接続されており、凝縮器缶胴４７内の冷媒液Ｖｆを位置ヘッド及び両者の内圧の差で高圧蒸発器缶胴１２７内に導くことができるように構成されている。高圧蒸発器缶胴１２７の下部と低圧蒸発器缶胴２２７の下部とは、連通冷媒液管５５で接続されており、高圧蒸発器缶胴１２７内の冷媒液Ｖｆを低圧蒸発器缶胴２２７内に導くことができるように構成されている。   The bottom or lower portion of the condenser can body 47 and the high pressure evaporator can body 127 are connected by a condensed refrigerant liquid pipe 54, and the refrigerant liquid Vf in the condenser can body 47 is moved by the difference between the position head and the internal pressure of both. The high pressure evaporator can body 127 is configured to be guided. The lower part of the high-pressure evaporator can body 127 and the lower part of the low-pressure evaporator can body 227 are connected by a communication refrigerant liquid pipe 55, and the refrigerant liquid Vf in the high-pressure evaporator can body 127 is transferred into the low-pressure evaporator can body 227. It is configured to be able to lead to.

低圧蒸発器缶胴２２７の底部又は下部には、被蒸発冷媒液管５６の一端が接続されている。被蒸発冷媒液管５６には、冷媒液ポンプ５６ｐが配設されている。被蒸発冷媒液管５６の他端は、分岐しており、高圧冷媒液管５８の一端及び低圧冷媒液管５９の一端がそれぞれ接続されている。高圧冷媒液管５８の他端は、高圧冷媒液散布ノズル１２２に接続されている。低圧冷媒液管５９の他端は、低圧冷媒液散布ノズル２２２に接続されている。吸収ヒートポンプ１は、冷媒液ポンプ５６ｐにより、低圧蒸発器缶胴２２７内の冷媒液Ｖｆを高圧冷媒液散布ノズル１２２及び低圧冷媒液散布ノズル２２２に搬送することができるように構成されている。   One end of the evaporative refrigerant liquid pipe 56 is connected to the bottom or lower portion of the low-pressure evaporator can body 227. A refrigerant liquid pump 56 p is disposed in the evaporative refrigerant liquid pipe 56. The other end of the evaporated refrigerant liquid pipe 56 is branched, and one end of the high-pressure refrigerant liquid pipe 58 and one end of the low-pressure refrigerant liquid pipe 59 are connected to each other. The other end of the high-pressure refrigerant liquid pipe 58 is connected to the high-pressure refrigerant liquid spray nozzle 122. The other end of the low-pressure refrigerant liquid pipe 59 is connected to the low-pressure refrigerant liquid spray nozzle 222. The absorption heat pump 1 is configured so that the refrigerant liquid Vf in the low-pressure evaporator can body 227 can be conveyed to the high-pressure refrigerant liquid spray nozzle 122 and the low-pressure refrigerant liquid spray nozzle 222 by the refrigerant liquid pump 56p.

吸収ヒートポンプ１は、被加熱媒体Ｗを外部から導入する被加熱媒体導入管６１と、被加熱媒体連絡管６２と、被加熱媒体Ｗを外部に導出する被加熱媒体導出管６３とを備えている。被加熱媒体導入管６１は、高圧被加熱媒体導入管６１Ａと低圧被加熱媒体導入管６１Ｂに分岐している。高圧被加熱媒体導入管６１Ａは、高圧加熱管１１１の一端に接続されている。低圧被加熱媒体導入管６１Ｂは、低圧加熱管２１１の一端に接続されている。高圧加熱管１１１の他端には、高圧被加熱媒体連絡管６２Ａの一端が接続されている。低圧加熱管２１１の他端には、低圧被加熱媒体連絡管６２Ｂの一端が接続されている。高圧被加熱媒体連絡管６２Ａ及び低圧被加熱媒体連絡管６２Ｂは、他端同士で合流して被加熱媒体連絡管６２となっている。被加熱媒体連絡管６２は、凝縮器加熱管４１の一端に接続されている。凝縮器加熱管４１の他端には、被加熱媒体導出管６３が接続されている。   The absorption heat pump 1 includes a heated medium introducing pipe 61 for introducing the heated medium W from the outside, a heated medium connecting pipe 62, and a heated medium outlet pipe 63 for leading the heated medium W to the outside. . The heated medium introduction pipe 61 is branched into a high pressure heated medium introduction pipe 61A and a low pressure heated medium introduction pipe 61B. The high-pressure heated medium introduction pipe 61 </ b> A is connected to one end of the high-pressure heating pipe 111. The low-pressure heated medium introduction pipe 61B is connected to one end of the low-pressure heating pipe 211. One end of a high-pressure heated medium communication tube 62A is connected to the other end of the high-pressure heating tube 111. One end of a low-pressure heated medium communication pipe 62B is connected to the other end of the low-pressure heating pipe 211. The high-pressure heated medium communication pipe 62A and the low-pressure heated medium communication pipe 62B merge at the other ends to form a heated medium communication pipe 62. The heated medium communication tube 62 is connected to one end of the condenser heating tube 41. A heated medium outlet pipe 63 is connected to the other end of the condenser heating pipe 41.

吸収ヒートポンプ１は、また、冷水ｃを外部から導入する冷水導入管６４と、冷水連絡管６５と、冷水ｃを外部に導出する冷水導出管６６とを備えている。冷水導入管６４は、高圧冷水管１２１の一端に接続されている。高圧冷水管１２１の他端と低圧冷水管２２１の一端とは、冷水連絡管６５を介して接続されている。低圧冷水管２２１の他端には、冷水導出管６６が接続されている。   The absorption heat pump 1 also includes a cold water introduction pipe 64 that introduces cold water c from the outside, a cold water communication pipe 65, and a cold water outlet pipe 66 that leads the cold water c to the outside. The cold water introduction pipe 64 is connected to one end of the high pressure cold water pipe 121. The other end of the high-pressure cold water pipe 121 and one end of the low-pressure cold water pipe 221 are connected via a cold water communication pipe 65. A cold water outlet pipe 66 is connected to the other end of the low pressure cold water pipe 221.

引き続き図１を参照して、吸収ヒートポンプ１の作用を説明する。吸収ヒートポンプ１の運転が開始されると、冷水ｃ及び被加熱媒体Ｗの流動が開始されると共に、再生器３０の加熱部３１における加熱が開始される。冷水ｃは、冷水導入管６４から吸収ヒートポンプ１に導入され、高圧冷水管１２１を流れた後に冷水連絡管６５に至り、その後、低圧冷水管２２１を流れ、冷水導出管６６を介して吸収ヒートポンプ１の外に導出される。   With continued reference to FIG. 1, the operation of the absorption heat pump 1 will be described. When the operation of the absorption heat pump 1 is started, the flow of the cold water c and the medium to be heated W is started, and the heating in the heating unit 31 of the regenerator 30 is started. The chilled water c is introduced into the absorption heat pump 1 from the chilled water introduction pipe 64, flows through the high-pressure chilled water pipe 121, reaches the chilled water communication pipe 65, then flows through the low-pressure chilled water pipe 221, and passes through the chilled water outlet pipe 66. Derived outside of.

被加熱媒体Ｗは、典型的には被加熱媒体ポンプ（不図示）によって流動され、被加熱媒体導入管６１から吸収ヒートポンプ１に導入される。被加熱媒体Ｗは、被加熱媒体導入管６１を流れていくと、高圧被加熱媒体導入管６１Ａと低圧被加熱媒体導入管６１Ｂとに分流される。高圧被加熱媒体導入管６１Ａを流れる被加熱媒体Ｗは、高圧加熱管１１１を流れた後に高圧被加熱媒体連絡管６２Ａに至る。低圧被加熱媒体導入管６１Ｂを流れる被加熱媒体Ｗは、低圧加熱管２１１を流れた後に低圧被加熱媒体連絡管６２Ｂに至る。高圧被加熱媒体連絡管６２Ａを流れる被加熱媒体Ｗ及び低圧被加熱媒体連絡管６２Ｂを流れる被加熱媒体Ｗは、合流して被加熱媒体連絡管６２を流れる。被加熱媒体連絡管６２を流れる被加熱媒体Ｗは、凝縮器加熱管４１を流れた後、被加熱媒体導出管６３を介して吸収ヒートポンプ１の外に導出され、被加熱媒体Ｗの利用場所に供給される。このように、被加熱媒体Ｗは、高圧吸収器１１０及び低圧吸収器２１０に並列に供給された後に凝縮器４０に供給される。   The heated medium W is typically flowed by a heated medium pump (not shown) and introduced into the absorption heat pump 1 from the heated medium introduction pipe 61. As the heated medium W flows through the heated medium introduction pipe 61, it is divided into a high pressure heated medium introduction pipe 61A and a low pressure heated medium introduction pipe 61B. The heated medium W flowing through the high-pressure heated medium introduction pipe 61A reaches the high-pressure heated medium communication pipe 62A after flowing through the high-pressure heated pipe 111. The heated medium W flowing through the low-pressure heated medium introduction pipe 61B reaches the low-pressure heated medium communication pipe 62B after flowing through the low-pressure heated pipe 211. The heated medium W flowing through the high-pressure heated medium communication pipe 62A and the heated medium W flowing through the low-pressure heated medium communication pipe 62B merge and flow through the heated medium communication pipe 62. The heated medium W flowing through the heated medium communication pipe 62 flows through the condenser heating pipe 41, and then is led out of the absorption heat pump 1 through the heated medium outlet pipe 63, to the place where the heated medium W is used. Supplied. Thus, the heated medium W is supplied to the condenser 40 after being supplied in parallel to the high-pressure absorber 110 and the low-pressure absorber 210.

吸収ヒートポンプ１内の冷媒Ｖのサイクルは、以下のように行われる。再生器冷媒蒸気流路３５を介して再生器３０から凝縮器４０に導入された再生器冷媒蒸気Ｖｇは、凝縮器加熱管４１を流れる被加熱媒体Ｗに冷却されて凝縮し、冷媒液Ｖｆとなって凝縮器缶胴４７の下部に貯留される。再生器冷媒蒸気Ｖｇを冷却した被加熱媒体Ｗは、温度が上昇して被加熱媒体導出管６３から導出される。凝縮器缶胴４７内の冷媒液Ｖｆは、凝縮冷媒液管５４を介して高圧蒸発器缶胴１２７内に導入される。凝縮器缶胴４７から高圧蒸発器缶胴１２７に導入された冷媒液Ｖｆは、高圧冷媒液散布ノズル１２２から散布されて蒸発しなかった冷媒液Ｖｆと混合し、連通冷媒液管５５を介して低圧蒸発器缶胴２２７内に導入される。低圧蒸発器缶胴２２７内の冷媒液Ｖｆは、冷媒液ポンプ５６ｐにより、被蒸発冷媒液管５６を流れ、高圧冷媒液管５８及び低圧冷媒液管５９に分流されて、高圧冷媒液散布ノズル１２２及び低圧冷媒液散布ノズル２２２に至る。   The cycle of the refrigerant V in the absorption heat pump 1 is performed as follows. The regenerator refrigerant vapor Vg introduced from the regenerator 30 into the condenser 40 via the regenerator refrigerant vapor channel 35 is cooled and condensed by the heated medium W flowing through the condenser heating pipe 41, and the refrigerant liquid Vf. And stored in the lower part of the condenser can body 47. The heated medium W that has cooled the regenerator refrigerant vapor Vg rises in temperature and is led out from the heated medium outlet pipe 63. The refrigerant liquid Vf in the condenser can body 47 is introduced into the high-pressure evaporator can body 127 via the condensed refrigerant liquid pipe 54. The refrigerant liquid Vf introduced into the high-pressure evaporator can body 127 from the condenser can body 47 is mixed with the refrigerant liquid Vf sprayed from the high-pressure refrigerant liquid spray nozzle 122 and not evaporated, and is connected via the communication refrigerant liquid pipe 55. It is introduced into the low-pressure evaporator can body 227. The refrigerant liquid Vf in the low-pressure evaporator can body 227 flows through the refrigerant liquid pipe 56 to be evaporated by the refrigerant liquid pump 56p, and is divided into the high-pressure refrigerant liquid pipe 58 and the low-pressure refrigerant liquid pipe 59, and the high-pressure refrigerant liquid spray nozzle 122. And the low-pressure refrigerant liquid spray nozzle 222.

高圧冷媒液散布ノズル１２２に至った冷媒液Ｖｆは、高圧冷水管１２１に向けて散布され、高圧冷水管１２１を流れる冷水ｃの熱を得て一部が蒸発して高圧冷媒蒸気Ｖｅ１となり、高圧冷媒蒸気流路１２６を介して高圧吸収器缶胴１１７に導入される。高圧冷媒液散布ノズル１２２から散布されて蒸発しなかった冷媒液Ｖｆは、高圧蒸発器缶胴１２７の下部に貯留される。他方、低圧冷媒液散布ノズル２２２に至った冷媒液Ｖｆは、低圧冷水管２２１に向けて散布され、低圧冷水管２２１を流れる冷水ｃの熱を得て一部が蒸発して低圧冷媒蒸気Ｖｅ２となり、低圧冷媒蒸気流路２２６を介して低圧吸収器缶胴２１７に導入される。低圧冷水管２２１に導入される冷水ｃは、高圧冷水管１２１を流れる際に冷媒液Ｖｆ熱を与えて温度が低下しているため、高圧冷水管１２１に導入される冷水ｃよりも温度が低くなっている。このため、低圧蒸発器２２０は、高圧蒸発器１２０よりも、作動時の温度及び圧力が低くなっている。なお、低圧冷媒液散布ノズル２２２から散布されて蒸発しなかった冷媒液Ｖｆは、低圧蒸発器缶胴２２７の下部に貯留される。   The refrigerant liquid Vf that has reached the high-pressure refrigerant liquid spray nozzle 122 is sprayed toward the high-pressure cold water pipe 121, obtains the heat of the cold water c flowing through the high-pressure cold water pipe 121, and partially evaporates into the high-pressure refrigerant vapor Ve1. The refrigerant is introduced into the high-pressure absorber can body 117 via the refrigerant vapor channel 126. The refrigerant liquid Vf sprayed from the high-pressure refrigerant liquid spray nozzle 122 and not evaporated is stored in the lower part of the high-pressure evaporator can body 127. On the other hand, the refrigerant liquid Vf that reaches the low-pressure refrigerant liquid spraying nozzle 222 is sprayed toward the low-pressure cold water pipe 221, obtains the heat of the cold water c flowing through the low-pressure cold water pipe 221, and partially evaporates to become the low-pressure refrigerant vapor Ve <b> 2. Then, it is introduced into the low-pressure absorber can body 217 via the low-pressure refrigerant vapor channel 226. The chilled water c introduced into the low-pressure chilled water pipe 221 is lower in temperature than the chilled water c introduced into the high-pressure chilled water pipe 121 because the temperature of the chilled water c is reduced by giving the heat of the refrigerant Vf when flowing through the high-pressure chilled water pipe 121. It has become. For this reason, the low-pressure evaporator 220 has a lower temperature and pressure during operation than the high-pressure evaporator 120. The refrigerant liquid Vf sprayed from the low-pressure refrigerant liquid spray nozzle 222 and not evaporated is stored in the lower part of the low-pressure evaporator can body 227.

次に吸収ヒートポンプ１内の溶液Ｓのサイクルを説明する。高圧吸収器缶胴１１７内の高圧希溶液Ｓｗ１は、高圧希溶液ポンプ５１ｐにより、高圧希溶液管５１を流れ、溶液熱交換器８１で温度が上昇した後に、再生器缶胴３７に導入される。再生器缶胴３７に導入された高圧希溶液Ｓｗ１は、加熱部３１によって加熱され、冷媒Ｖが離脱して濃溶液Ｓａとなる。他方、高圧希溶液Ｓｗ１から離脱した冷媒Ｖは、再生器冷媒蒸気Ｖｇとして、再生器冷媒蒸気流路３５を介して凝縮器缶胴４７内に送られる。   Next, the cycle of the solution S in the absorption heat pump 1 will be described. The high-pressure dilute solution Sw1 in the high-pressure absorber can body 117 flows through the high-pressure dilute solution pipe 51 by the high-pressure dilute solution pump 51p and is introduced into the regenerator can body 37 after the temperature rises in the solution heat exchanger 81. . The high-pressure dilute solution Sw1 introduced into the regenerator can body 37 is heated by the heating unit 31, and the refrigerant V is released to become a concentrated solution Sa. On the other hand, the refrigerant V separated from the high-pressure dilute solution Sw <b> 1 is sent as regenerator refrigerant vapor Vg into the condenser can body 47 via the regenerator refrigerant vapor channel 35.

再生器缶胴３７内で生成された濃溶液Ｓａは、濃溶液管５３を流れ、溶液熱交換器８１において高圧希溶液Ｓｗ１と熱交換して温度が低下したうえで低圧溶液散布ノズル２１２に至る。低圧溶液散布ノズル２１２に至った濃溶液Ｓａは、低圧加熱管２１１に向けて散布され、低圧冷媒蒸気流路２２６から導入された低圧冷媒蒸気Ｖｅ２を吸収し濃度が低下して低圧希溶液Ｓｗ２となる。低圧吸収器缶胴２１７内において、濃溶液Ｓａが低圧冷媒蒸気Ｖｅ２を吸収する際には吸収熱が発生する。この吸収熱が、低圧加熱管２１１を流れる被加熱媒体Ｗに伝達され、被加熱媒体Ｗが加熱される。低圧吸収器缶胴２１７内で生じた低圧希溶液Ｓｗ２は、低圧吸収器缶胴２１７内に貯留される。   The concentrated solution Sa generated in the regenerator can body 37 flows through the concentrated solution tube 53, exchanges heat with the high-pressure dilute solution Sw <b> 1 in the solution heat exchanger 81, and reaches the low-pressure solution spray nozzle 212 after the temperature decreases. . The concentrated solution Sa reaching the low-pressure solution spray nozzle 212 is sprayed toward the low-pressure heating pipe 211, absorbs the low-pressure refrigerant vapor Ve2 introduced from the low-pressure refrigerant vapor channel 226, and decreases in concentration to form the low-pressure dilute solution Sw2. Become. In the low-pressure absorber can body 217, absorption heat is generated when the concentrated solution Sa absorbs the low-pressure refrigerant vapor Ve2. This absorbed heat is transmitted to the heated medium W flowing through the low-pressure heating pipe 211, and the heated medium W is heated. The low-pressure dilute solution Sw2 generated in the low-pressure absorber can body 217 is stored in the low-pressure absorber can body 217.

低圧吸収器缶胴２１７内の低圧希溶液Ｓｗ２は、低圧希溶液ポンプ５２ｐにより、低圧希溶液管５２を流れ、高圧溶液散布ノズル１１２に至る。高圧溶液散布ノズル１１２に至った低圧希溶液Ｓｗ２は、高圧加熱管１１１に向けて散布され、高圧冷媒蒸気流路１２６から導入された高圧冷媒蒸気Ｖｅ１を吸収し濃度が低下して高圧希溶液Ｓｗ１となる。高圧吸収器缶胴１１７内において、低圧希溶液Ｓｗ２が高圧冷媒蒸気Ｖｅ１を吸収する際には吸収熱が発生する。この吸収熱が、高圧加熱管１１１を流れる被加熱媒体Ｗに伝達され、被加熱媒体Ｗが加熱される。高圧吸収器缶胴１１７内で生じた高圧希溶液Ｓｗ１は、高圧吸収器缶胴１１７内に貯留される。   The low-pressure dilute solution Sw2 in the low-pressure absorber can body 217 flows through the low-pressure dilute solution pipe 52 by the low-pressure dilute solution pump 52p and reaches the high-pressure solution spray nozzle 112. The low-pressure dilute solution Sw2 that has reached the high-pressure solution spray nozzle 112 is sprayed toward the high-pressure heating pipe 111, absorbs the high-pressure refrigerant vapor Ve1 introduced from the high-pressure refrigerant vapor channel 126, and decreases in concentration, resulting in a high-pressure dilute solution Sw1. It becomes. In the high-pressure absorber can body 117, absorption heat is generated when the low-pressure dilute solution Sw2 absorbs the high-pressure refrigerant vapor Ve1. This absorbed heat is transmitted to the heated medium W flowing through the high-pressure heating tube 111, and the heated medium W is heated. The high-pressure dilute solution Sw <b> 1 generated in the high-pressure absorber can body 117 is stored in the high-pressure absorber can body 117.

図２のデューリング線図をも参照して、吸収ヒートポンプ１の作用の説明を補足する。図２のデューリング線図は、縦軸に冷媒Ｖ（本実施の形態では水）の露点温度を、横軸に溶液Ｓ（本実施の形態ではＬｉＢｒ水溶液）の温度をとっている。右上がりの線は溶液Ｓの等濃度線を表し、右に行くほど高濃度、左に行くほど低濃度となり、図中の原点を通る右上がりの線は溶液濃度０％（すなわち冷媒のみ）の線である。なお、縦軸が示す露点温度は飽和圧力と対応関係にあるため、冷媒蒸気Ｖｅ１、Ｖｅ２、Ｖｇが飽和蒸気である本実施の形態のヒートポンプサイクルでは、縦軸は主要構成機器である高圧吸収器１１０、低圧吸収器２１０、高圧蒸発器１２０、低圧蒸発器２２０、再生器３０、凝縮器４０の内部圧力を表していると見ることもできる。   The explanation of the operation of the absorption heat pump 1 will be supplemented also with reference to the Dueling diagram of FIG. In the Dueling diagram of FIG. 2, the vertical axis represents the dew point temperature of the refrigerant V (water in the present embodiment), and the horizontal axis represents the temperature of the solution S (LiBr aqueous solution in the present embodiment). The line rising to the right represents the isoconcentration line of the solution S. The concentration increases toward the right and decreases toward the left. The line rising to the right passing through the origin in the figure has a solution concentration of 0% (that is, only the refrigerant). Is a line. Since the dew point temperature indicated by the vertical axis has a corresponding relationship with the saturation pressure, in the heat pump cycle of the present embodiment in which the refrigerant vapors Ve1, Ve2, and Vg are saturated vapors, the vertical axis indicates a high-pressure absorber that is a main component device. 110, the low pressure absorber 210, the high pressure evaporator 120, the low pressure evaporator 220, the regenerator 30, and the condenser 40.

図２中、吸収ヒートポンプ１の定格運転における吸収液Ｓの状態は溶液線ＳＤで表され、定格運転における冷媒Ｖの状態は冷媒線ＶＤで表されている。図２中、溶液線ＳＤにおいて、露点温度Ｐ１は低圧吸収器２１０の状態を、露点温度Ｐ２は高圧吸収器１１０の状態を、露点温度Ｐ３は再生器３０の状態をそれぞれ表している。また、冷媒線ＶＤにおいて、露点温度Ｐ１は低圧蒸発器２２０の状態を、露点温度Ｐ２は高圧蒸発器１２０の状態を、露点温度Ｐ３は凝縮器４０の状態をそれぞれ表している。なお、冷媒Ｖの蒸気を移動させるために互いに連通している高圧吸収器１１０と高圧蒸発器１２０、低圧吸収器２１０と低圧蒸発器２２０、再生器３０と凝縮器４０の内部圧力は、厳密に言えば冷媒Ｖの蒸気の下流側となる方が冷媒Ｖの蒸気の流動による圧力損失分だけ低くなるが、ほぼ同じ圧力である。   In FIG. 2, the state of the absorbing liquid S in the rated operation of the absorption heat pump 1 is represented by a solution line SD, and the state of the refrigerant V in the rated operation is represented by a refrigerant line VD. In FIG. 2, in the solution line SD, the dew point temperature P1 represents the state of the low pressure absorber 210, the dew point temperature P2 represents the state of the high pressure absorber 110, and the dew point temperature P3 represents the state of the regenerator 30. In refrigerant line VD, dew point temperature P1 represents the state of low-pressure evaporator 220, dew point temperature P2 represents the state of high pressure evaporator 120, and dew point temperature P3 represents the state of condenser 40. Note that the internal pressures of the high-pressure absorber 110 and the high-pressure evaporator 120, the low-pressure absorber 210 and the low-pressure evaporator 220, and the regenerator 30 and the condenser 40 that are in communication with each other to move the vapor of the refrigerant V are strictly In other words, the pressure on the downstream side of the vapor of the refrigerant V becomes lower by the pressure loss due to the flow of the vapor of the refrigerant V, but the pressure is almost the same.

図２において、溶液Ｓのサイクルは、溶液線ＳＤ上を時計回りに循環する。露点温度Ｐ３の状態にある再生器３０から導出された濃度Ｃｒ４の濃溶液Ｓａは、低圧吸収器２１０に導入される際に、濃度Ｃｒ４のまま露点温度Ｐ１まで低下する。低圧吸収器２１０に導入された濃溶液Ｓａは、低圧冷媒蒸気Ｖｅ２を吸収しつつ低圧加熱管２１１を流れる被加熱媒体Ｗによって溶液温度Ｔ１まで冷却されて、濃度Ｃｒ２の低圧希溶液Ｓｗ２となる。低圧吸収器２１０の低圧希溶液Ｓｗ２は、低圧希溶液ポンプ５２ｐによって露点温度Ｐ２まで上昇し、濃度Ｃｒ２のまま高圧吸収器１１０に導入される。高圧吸収器１１０に導入された低圧希溶液Ｓｗ２は、高圧冷媒蒸気Ｖｅ１を吸収しつつ高圧加熱管１１１を流れる被加熱媒体Ｗによって冷却される。このとき、吸収ヒートポンプ１では、被加熱媒体Ｗが高圧吸収器１１０と低圧吸収器２１０とに並列に供給されるので、両者に供給される被加熱媒体Ｗの温度は同じになる。したがって、高圧冷媒蒸気Ｖｅ１を吸収した低圧希溶液Ｓｗ２は、露点温度Ｐ２において溶液温度Ｔ１まで冷却され、これによって濃度Ｃｒ１の高圧希溶液Ｓｗ１となる。高圧吸収器１１０の高圧希溶液Ｓｗ１は、高圧希溶液ポンプ５１ｐによって露点温度Ｐ３まで上昇し、濃度Ｃｒ１のまま再生器３０に導入される。再生器３０に導入された高圧冷媒蒸気Ｖｅ１は、加熱部３１によって加熱されることで冷媒Ｖが離脱して濃縮され、濃度Ｃｒ４の濃溶液Ｓａとなる。吸収ヒートポンプ１は、上述のような溶液Ｓのサイクルが行われるので、高圧吸収器１１０と低圧吸収器２１０とで、負荷が概ね同じになる。   In FIG. 2, the cycle of the solution S circulates clockwise on the solution line SD. When the concentrated solution Sa having the concentration Cr4 derived from the regenerator 30 in the state of the dew point temperature P3 is introduced into the low-pressure absorber 210, the concentration Cr4 remains at the dew point temperature P1. The concentrated solution Sa introduced into the low-pressure absorber 210 is cooled to the solution temperature T1 by the heated medium W flowing through the low-pressure heating pipe 211 while absorbing the low-pressure refrigerant vapor Ve2, and becomes the low-pressure dilute solution Sw2 having the concentration Cr2. The low-pressure dilute solution Sw2 of the low-pressure absorber 210 is raised to the dew point temperature P2 by the low-pressure dilute solution pump 52p, and is introduced into the high-pressure absorber 110 with the concentration Cr2. The low-pressure dilute solution Sw2 introduced into the high-pressure absorber 110 is cooled by the heated medium W flowing through the high-pressure heating pipe 111 while absorbing the high-pressure refrigerant vapor Ve1. At this time, in the absorption heat pump 1, since the heated medium W is supplied in parallel to the high-pressure absorber 110 and the low-pressure absorber 210, the temperature of the heated medium W supplied to both is the same. Therefore, the low-pressure dilute solution Sw2 that has absorbed the high-pressure refrigerant vapor Ve1 is cooled to the solution temperature T1 at the dew point temperature P2, thereby becoming the high-pressure dilute solution Sw1 having the concentration Cr1. The high-pressure dilute solution Sw1 in the high-pressure absorber 110 is raised to the dew point temperature P3 by the high-pressure dilute solution pump 51p, and is introduced into the regenerator 30 with the concentration Cr1. The high-pressure refrigerant vapor Ve1 introduced into the regenerator 30 is heated by the heating unit 31 to be separated from the refrigerant V and concentrated to become a concentrated solution Sa having a concentration Cr4. Since the absorption heat pump 1 is cycled with the solution S as described above, the high-pressure absorber 110 and the low-pressure absorber 210 have substantially the same load.

本実施の形態に係る吸収ヒートポンプ１との比較として、従来の吸収ヒートポンプ９１（図４参照）の溶液のサイクルについて、図２及び図４を参照しながら言及する。吸収ヒートポンプ９１は、被加熱媒体Ｗが、高圧吸収器１１０、低圧吸収器２１０、凝縮器４０の順で直列に供給されるものであり、被加熱媒体Ｗの温度はこれらを通過するごとに高くなる。したがって、吸収ヒートポンプ９１においては、被加熱媒体Ｗの温度が、高圧吸収器１１０に供給されるときよりも、低圧吸収器２１０に供給されるときの方が高くなる。これを、図２のデューリング線図上で見てみると、低圧吸収器２１０では、溶液温度Ｔ１よりも高い溶液温度Ｔ２までしか溶液Ｓが冷却されないため、低圧吸収器２１０で生成される溶液Ｓは濃度Ｃｒ３となる。吸収ヒートポンプ９１では、濃度Ｃｒ３の溶液Ｓが高圧吸収器１１０に導入され、濃度Ｃｒ１の溶液Ｓとなる（図２中、二点鎖線で示している）。図２を見ると、明らかに、高圧吸収器１１０の負荷が低圧吸収器２１０の負荷よりも大きくなっており、一般にその割合は７対３程度である。このように、従来の吸収ヒートポンプ９１では、高圧吸収器１１０に低圧吸収器２１０よりも大きな負荷がかかり、高圧吸収器１１０の負荷と低圧吸収器２１０の負荷とで不均衡（アンバランス）が生じていた。   As a comparison with the absorption heat pump 1 according to the present embodiment, the solution cycle of the conventional absorption heat pump 91 (see FIG. 4) will be described with reference to FIGS. The absorption heat pump 91 is such that the medium to be heated W is supplied in series in the order of the high-pressure absorber 110, the low-pressure absorber 210, and the condenser 40, and the temperature of the medium to be heated W increases as it passes through them. Become. Therefore, in the absorption heat pump 91, the temperature of the heated medium W is higher when supplied to the low pressure absorber 210 than when supplied to the high pressure absorber 110. When this is seen on the Duhring diagram of FIG. 2, since the solution S is cooled only to the solution temperature T2 higher than the solution temperature T1 in the low-pressure absorber 210, the solution generated in the low-pressure absorber 210. S has a concentration of Cr3. In the absorption heat pump 91, the solution S with the concentration Cr3 is introduced into the high-pressure absorber 110 to become the solution S with the concentration Cr1 (indicated by a two-dot chain line in FIG. 2). Referring to FIG. 2, it is apparent that the load of the high pressure absorber 110 is larger than the load of the low pressure absorber 210, and the ratio is generally about 7 to 3. As described above, in the conventional absorption heat pump 91, the high-pressure absorber 110 is subjected to a larger load than the low-pressure absorber 210, and an imbalance occurs between the load of the high-pressure absorber 110 and the load of the low-pressure absorber 210. It was.

以上で説明したように、本実施の形態に係る吸収ヒートポンプ１によれば、被加熱媒体Ｗが高圧吸収器１１０と低圧吸収器２１０とに並列に供給されるので、高圧吸収器１１０の負荷と低圧吸収器２１０の負荷とを概ね平準化することができる。また、被加熱媒体Ｗが高圧吸収器１１０と低圧吸収器２１０とに並列に供給されるので、高圧被加熱媒体連絡管６２Ａ及び低圧被加熱媒体連絡管６２Ｂ等にバルブ等の流量調節手段を設けることで、高圧吸収器１１０及び低圧吸収器２１０へ供給される被加熱媒体Ｗの分配比率を容易に変えることができる。また、高圧蒸発器缶胴１２７及び低圧蒸発器缶胴２２７が、高圧吸収器缶胴１１７及び低圧吸収器缶胴２１７よりも鉛直上方に配置されているので、高圧吸収器缶胴１１７内の液滴の高圧蒸発器缶胴１２７への飛散、及び低圧吸収器缶胴２１７内の液滴の低圧蒸発器缶胴２２７への飛散を回避することができ、高圧吸収器１１０及び低圧吸収器２１０には、それぞれ、エリミネータを設けなくて済む。   As described above, according to the absorption heat pump 1 according to the present embodiment, the medium to be heated W is supplied in parallel to the high-pressure absorber 110 and the low-pressure absorber 210. The load of the low-pressure absorber 210 can be generally leveled. Further, since the heated medium W is supplied in parallel to the high-pressure absorber 110 and the low-pressure absorber 210, a flow rate adjusting means such as a valve is provided in the high-pressure heated medium communication pipe 62A, the low-pressure heated medium communication pipe 62B, and the like. Thus, the distribution ratio of the heated medium W supplied to the high-pressure absorber 110 and the low-pressure absorber 210 can be easily changed. Further, since the high-pressure evaporator can body 127 and the low-pressure evaporator can body 227 are arranged vertically above the high-pressure absorber can body 117 and the low-pressure absorber can body 217, the liquid in the high-pressure absorber can body 117 It is possible to avoid the droplets from being scattered to the high-pressure evaporator can body 127 and the droplets in the low-pressure absorber can body 217 to the low-pressure evaporator can body 227. Each does not require an eliminator.

次に図３を参照して、本発明の実施の形態の変形例に係る吸収ヒートポンプ３を説明する。図３は、吸収ヒートポンプ３の概略構成図である。吸収ヒートポンプ３は、吸収ヒートポンプ１（図１参照）と比較して、以下の点が異なっている。まず、吸収ヒートポンプ３は、再生器が高圧再生器１３０と低圧再生器２３０とに分かれており、凝縮器が第１の凝縮器としての高圧凝縮器１４０と第２の凝縮器としての低圧凝縮器２４０とに分かれている。高圧再生器１３０及び低圧再生器２３０は、それぞれ、外見上の構成が再生器３０（図１参照）と同様になっている。再生器３０の加熱部３１及び再生器缶胴３７（図１参照）に対応する構成として、高圧再生器１３０は高圧加熱部１３１及び高圧再生器缶胴１３７を、低圧再生器２３０は低圧加熱部２３１及び低圧再生器缶胴２３７を、それぞれ有している。高圧凝縮器１４０及び低圧凝縮器２４０は、それぞれ、外見上の構成が凝縮器４０（図１参照）と同様になっている。凝縮器４０の凝縮器加熱管４１及び凝縮器缶胴４７（図１参照）に対応する構成として、高圧凝縮器１４０は高圧凝縮器加熱管１４１及び高圧凝縮器缶胴１４７を、低圧凝縮器２４０は低圧凝縮器加熱管２４１及び低圧凝縮器缶胴２４７を、それぞれ有している。   Next, with reference to FIG. 3, the absorption heat pump 3 which concerns on the modification of embodiment of this invention is demonstrated. FIG. 3 is a schematic configuration diagram of the absorption heat pump 3. The absorption heat pump 3 differs from the absorption heat pump 1 (see FIG. 1) in the following points. First, in the absorption heat pump 3, the regenerator is divided into a high pressure regenerator 130 and a low pressure regenerator 230, and the condenser is a high pressure condenser 140 as a first condenser and a low pressure condenser as a second condenser. 240. Each of the high pressure regenerator 130 and the low pressure regenerator 230 has the same appearance as the regenerator 30 (see FIG. 1). As a configuration corresponding to the heating unit 31 and the regenerator can body 37 (see FIG. 1) of the regenerator 30, the high pressure regenerator 130 includes the high pressure heating unit 131 and the high pressure regenerator can body 137, and the low pressure regenerator 230 includes the low pressure heating unit. 231 and a low-pressure regenerator can body 237, respectively. Each of the high-pressure condenser 140 and the low-pressure condenser 240 has the same configuration as the condenser 40 (see FIG. 1). As a configuration corresponding to the condenser heating tube 41 and the condenser can body 47 (see FIG. 1) of the condenser 40, the high pressure condenser 140 includes the high pressure condenser heating tube 141 and the high pressure condenser can body 147, and the low pressure condenser 240. Has a low pressure condenser heating tube 241 and a low pressure condenser can body 247, respectively.

高圧再生器缶胴１３７と高圧凝縮器缶胴１４７とは、水平方向に隣接して配置され、高圧蒸発器缶胴１２７の鉛直上方に配設されている。高圧再生器缶胴１３７の上部と高圧凝縮器缶胴１４７の上部とは、高圧再生器冷媒蒸気Ｖｇ１を高圧再生器１３０から高圧凝縮器１４０へと導く高圧再生器冷媒蒸気流路１３５を介して連通している。他方、低圧再生器缶胴２３７と低圧凝縮器缶胴２４７とは、水平方向に隣接して配置され、低圧蒸発器缶胴２２７の鉛直上方に配設されている。低圧再生器缶胴２３７の上部と低圧凝縮器缶胴２４７の上部とは、低圧再生器冷媒蒸気Ｖｇ２を低圧再生器２３０から低圧凝縮器２４０へと導く低圧再生器冷媒蒸気流路２３５を介して連通している。なお、吸収ヒートポンプ３の高圧蒸発器１２０、低圧蒸発器２２０、高圧吸収器１１０、低圧吸収器２１０は、吸収ヒートポンプ１（図１参照）が備えているものと同じ構成である。   The high-pressure regenerator can body 137 and the high-pressure condenser can body 147 are disposed adjacent to each other in the horizontal direction, and are disposed vertically above the high-pressure evaporator can body 127. The upper part of the high-pressure regenerator can body 137 and the upper part of the high-pressure condenser can body 147 are connected via a high-pressure regenerator refrigerant vapor channel 135 that leads the high-pressure regenerator refrigerant vapor Vg1 from the high-pressure regenerator 130 to the high-pressure condenser 140. Communicate. On the other hand, the low pressure regenerator can body 237 and the low pressure condenser can body 247 are disposed adjacent to each other in the horizontal direction, and are disposed vertically above the low pressure evaporator can body 227. The upper portion of the low pressure regenerator can body 237 and the upper portion of the low pressure condenser can body 247 are connected via a low pressure regenerator refrigerant vapor channel 235 that guides the low pressure regenerator refrigerant vapor Vg2 from the low pressure regenerator 230 to the low pressure condenser 240. Communicate. The high-pressure evaporator 120, the low-pressure evaporator 220, the high-pressure absorber 110, and the low-pressure absorber 210 of the absorption heat pump 3 have the same configuration as that of the absorption heat pump 1 (see FIG. 1).

吸収ヒートポンプ３では、高圧吸収器缶胴１１７に接続された高圧希溶液管５１の他端が、高圧再生器缶胴１３７に接続されている。また、高圧溶液散布ノズル１１２には、低圧吸収器缶胴２１７の低圧希溶液Ｓｗ２ではなく、高圧再生器１３０で濃縮された高圧濃溶液Ｓａ１を高圧吸収器１１０に導く高圧濃溶液管１５３が接続されている。したがって、高圧溶液散布ノズル１１２から散布されるのは高圧濃溶液Ｓａ１となり、吸収ヒートポンプ３では高圧濃溶液Ｓａ１が第１の吸収液に相当する。高圧希溶液管５１には、吸収ヒートポンプ１における溶液熱交換器８１（図１参照）に代えて、高圧溶液熱交換器１８１が配設されている。高圧溶液熱交換器１８１は、高圧濃溶液管１５３が接続されており、高圧希溶液Ｓｗ１と高圧濃溶液Ｓａ１との間で熱交換を行わせるように構成されている。   In the absorption heat pump 3, the other end of the high-pressure dilute solution pipe 51 connected to the high-pressure absorber can body 117 is connected to the high-pressure regenerator can body 137. Further, not the low pressure dilute solution Sw2 in the low pressure absorber can body 217 but the high pressure concentrated solution tube 153 that leads the high pressure concentrated solution Sa1 concentrated in the high pressure regenerator 130 to the high pressure absorber 110 is connected to the high pressure solution spray nozzle 112. Has been. Therefore, the high-pressure concentrated solution Sa1 is sprayed from the high-pressure solution spray nozzle 112, and in the absorption heat pump 3, the high-pressure concentrated solution Sa1 corresponds to the first absorbent. The high-pressure dilute solution tube 51 is provided with a high-pressure solution heat exchanger 181 instead of the solution heat exchanger 81 (see FIG. 1) in the absorption heat pump 1. The high-pressure solution heat exchanger 181 is connected to the high-pressure concentrated solution tube 153, and is configured to exchange heat between the high-pressure diluted solution Sw1 and the high-pressure concentrated solution Sa1.

また、吸収ヒートポンプ３では、低圧吸収器缶胴２１７に接続された低圧希溶液管５２の他端が、高圧溶液散布ノズル１１２ではなく、低圧再生器缶胴２３７の底部又は下部に接続されている。また、低圧溶液散布ノズル２１２には、低圧再生器２３０で濃縮された低圧濃溶液Ｓａ２を低圧吸収器２１０に導く低圧濃溶液管２５３が接続されている。したがって、低圧溶液散布ノズル２１２から散布されるのは低圧濃溶液Ｓａ２となり、吸収ヒートポンプ３では低圧濃溶液Ｓａ２が第２の吸収液に相当する。低圧希溶液管５２及び低圧濃溶液管２５３には、低圧希溶液Ｓｗ２と低圧濃溶液Ｓａ２との間で熱交換を行わせる低圧溶液熱交換器２８１が配設されている。   In the absorption heat pump 3, the other end of the low-pressure dilute solution pipe 52 connected to the low-pressure absorber can body 217 is connected to the bottom or lower portion of the low-pressure regenerator can body 237 instead of the high-pressure solution spray nozzle 112. . The low pressure solution spray nozzle 212 is connected to a low pressure concentrated solution pipe 253 that guides the low pressure concentrated solution Sa2 concentrated by the low pressure regenerator 230 to the low pressure absorber 210. Therefore, the low-pressure concentrated solution Sa2 is sprayed from the low-pressure solution spraying nozzle 212. In the absorption heat pump 3, the low-pressure concentrated solution Sa2 corresponds to the second absorbent. The low-pressure dilute solution tube 52 and the low-pressure dilute solution tube 253 are provided with a low-pressure solution heat exchanger 281 that performs heat exchange between the low-pressure dilute solution Sw2 and the low-pressure concentrated solution Sa2.

また、吸収ヒートポンプ３では、高圧蒸発器缶胴１２７に接続されている凝縮冷媒液管５４の他端が、高圧凝縮器缶胴１４７の底部又は下部に接続されている。低圧凝縮器缶胴２４７の底部又は下部と低圧蒸発器缶胴２２７とは、低圧凝縮冷媒液管２５４で接続されており、低圧凝縮器缶胴２４７内の冷媒液Ｖｆを位置ヘッドで低圧蒸発器缶胴２２７内に導くことができるように構成されている。低圧蒸発器缶胴２２７に接続された被蒸発冷媒液管５６の他端は、分岐せずに低圧冷媒液散布ノズル２２２に接続されている。したがって、低圧蒸発器缶胴２２７内の冷媒液Ｖｆは、低圧冷媒液散布ノズル２２２にのみ供給されることとなる。高圧蒸発器缶胴１２７の底部又は下部と高圧冷媒液散布ノズル１２２とは、高圧蒸発器缶胴１２７内の冷媒液Ｖｆを高圧冷媒液散布ノズル１２２に導く高圧被蒸発冷媒液管１５５で接続されている。高圧被蒸発冷媒液管１５５には、高圧冷媒液ポンプ１５５ｐが配設されている。したがって、高圧蒸発器缶胴１２７内の冷媒液Ｖｆは、高圧冷媒液散布ノズル１２２にのみ供給されることとなる。   In the absorption heat pump 3, the other end of the condensed refrigerant liquid pipe 54 connected to the high-pressure evaporator can body 127 is connected to the bottom or lower portion of the high-pressure condenser can body 147. The bottom or lower portion of the low-pressure condenser can body 247 and the low-pressure evaporator can body 227 are connected by a low-pressure condensing refrigerant liquid pipe 254, and the refrigerant liquid Vf in the low-pressure condenser can body 247 is connected to the low-pressure evaporator by a position head. The can body 227 is configured to be guided. The other end of the evaporative refrigerant liquid pipe 56 connected to the low-pressure evaporator can body 227 is connected to the low-pressure refrigerant liquid spray nozzle 222 without branching. Accordingly, the refrigerant liquid Vf in the low-pressure evaporator can body 227 is supplied only to the low-pressure refrigerant liquid spray nozzle 222. The bottom or lower portion of the high-pressure evaporator can body 127 and the high-pressure refrigerant liquid spray nozzle 122 are connected by a high-pressure evaporated refrigerant liquid pipe 155 that guides the refrigerant liquid Vf in the high-pressure evaporator can body 127 to the high-pressure refrigerant liquid spray nozzle 122. ing. The high-pressure evaporative refrigerant liquid pipe 155 is provided with a high-pressure refrigerant liquid pump 155p. Therefore, the refrigerant liquid Vf in the high-pressure evaporator can body 127 is supplied only to the high-pressure refrigerant liquid spray nozzle 122.

また、吸収ヒートポンプ３では、高圧吸収器１１０の高圧加熱管１１１に接続された高圧被加熱媒体連絡管６２Ａと、低圧吸収器２１０の低圧加熱管２１１に接続された低圧被加熱媒体連絡管６２Ｂとの他端同士が合流していない。高圧被加熱媒体連絡管６２Ａの他端は、高圧凝縮器１４０の高圧凝縮器加熱管１４１の一端に接続されている。高圧凝縮器加熱管１４１の他端には、高圧被加熱媒体導出管６３Ａの一端が接続されている。低圧被加熱媒体連絡管６２Ｂの他端は、低圧凝縮器２４０の低圧凝縮器加熱管２４１の一端に接続されている。低圧凝縮器加熱管２４１の他端には、低圧被加熱媒体導出管６３Ｂの一端が接続されている。高圧被加熱媒体導出管６３Ａ及び低圧被加熱媒体導出管６３Ｂは、他端同士で合流して被加熱媒体導出管６３に接続されている。これまでに述べたもの以外の吸収ヒートポンプ３の構成は、吸収ヒートポンプ１（図１参照）と同じである。   In the absorption heat pump 3, the high-pressure heated medium communication pipe 62 </ b> A connected to the high-pressure heating pipe 111 of the high-pressure absorber 110, and the low-pressure heated medium communication pipe 62 </ b> B connected to the low-pressure heating pipe 211 of the low-pressure absorber 210. The other ends of are not joined. The other end of the high-pressure heated medium communication tube 62A is connected to one end of the high-pressure condenser heating tube 141 of the high-pressure condenser 140. One end of a high-pressure heated medium outlet pipe 63A is connected to the other end of the high-pressure condenser heating pipe 141. The other end of the low-pressure heated medium communication pipe 62B is connected to one end of the low-pressure condenser heating pipe 241 of the low-pressure condenser 240. One end of a low-pressure heated medium outlet pipe 63B is connected to the other end of the low-pressure condenser heating pipe 241. The high-pressure heated medium outlet pipe 63A and the low-pressure heated medium outlet pipe 63B merge at the other ends and are connected to the heated medium outlet pipe 63. The configuration of the absorption heat pump 3 other than those described so far is the same as that of the absorption heat pump 1 (see FIG. 1).

上述のように構成された吸収ヒートポンプ３は、冷媒Ｖ及び溶液Ｓのサイクルが、高圧側と低圧側とでそれぞれ独立している。高圧側では、冷媒Ｖは、高圧再生器冷媒蒸気Ｖｇ１として高圧再生器１３０から高圧凝縮器１４０に流入し、高圧凝縮器１４０で凝縮して冷媒液Ｖｆとなって高圧蒸発器１２０に導かれ、高圧蒸発器１２０で蒸発して高圧冷媒蒸気Ｖｅ１となって高圧吸収器１１０に導かれ、溶液Ｓに吸収される。溶液Ｓは、高圧吸収器１１０で高圧冷媒蒸気Ｖｅ１を吸収して濃度が低下し、高圧希溶液Ｓｗ１として高圧再生器１３０に導かれ、高圧再生器１３０で濃縮されて高圧濃溶液Ｓａ１となって高圧吸収器１１０に導かれ、高圧冷媒蒸気Ｖｅ１を吸収する。   In the absorption heat pump 3 configured as described above, the refrigerant V and solution S cycles are independent on the high-pressure side and the low-pressure side, respectively. On the high pressure side, the refrigerant V flows from the high pressure regenerator 130 into the high pressure condenser 140 as the high pressure regenerator refrigerant vapor Vg1, condenses in the high pressure condenser 140 and becomes the refrigerant liquid Vf, and is led to the high pressure evaporator 120. It evaporates in the high-pressure evaporator 120 and becomes high-pressure refrigerant vapor Ve1, is guided to the high-pressure absorber 110, and is absorbed by the solution S. The solution S absorbs the high-pressure refrigerant vapor Ve1 by the high-pressure absorber 110 and decreases in concentration. The solution S is led to the high-pressure regenerator 130 as the high-pressure dilute solution Sw1, and is concentrated by the high-pressure regenerator 130 to become the high-pressure concentrated solution Sa1. It is led to the high-pressure absorber 110 and absorbs the high-pressure refrigerant vapor Ve1.

他方、低圧側では、冷媒Ｖは、低圧再生器冷媒蒸気Ｖｇ２として低圧再生器２３０から低圧凝縮器２４０に流入し、低圧凝縮器２４０で凝縮して冷媒液Ｖｆとなって低圧蒸発器２２０に導かれ、低圧蒸発器２２０で蒸発して低圧冷媒蒸気Ｖｅ２となって低圧吸収器２１０に導かれ、溶液Ｓに吸収される。溶液Ｓは、低圧吸収器２１０で低圧冷媒蒸気Ｖｅ２を吸収して濃度が低下し、低圧希溶液Ｓｗ２として低圧再生器２３０に導かれ、低圧再生器２３０で濃縮されて低圧濃溶液Ｓａ２となって低圧吸収器２１０に導かれ、低圧冷媒蒸気Ｖｅ２を吸収する。   On the other hand, on the low pressure side, the refrigerant V flows from the low pressure regenerator 230 into the low pressure condenser 240 as the low pressure regenerator refrigerant vapor Vg2, condenses in the low pressure condenser 240 and becomes the refrigerant liquid Vf and is led to the low pressure evaporator 220. Then, it evaporates in the low-pressure evaporator 220 to become a low-pressure refrigerant vapor Ve2 and is guided to the low-pressure absorber 210 and absorbed in the solution S. The solution S absorbs the low-pressure refrigerant vapor Ve2 in the low-pressure absorber 210 and decreases in concentration. The solution S is led to the low-pressure regenerator 230 as the low-pressure dilute solution Sw2, and is concentrated in the low-pressure regenerator 230 to become the low-pressure concentrated solution Sa2. It is led to the low-pressure absorber 210 and absorbs the low-pressure refrigerant vapor Ve2.

上述した吸収ヒートポンプ３によれば、吸収ヒートポンプ１（図１参照）と同様に、被加熱媒体Ｗが高圧吸収器１１０と低圧吸収器２１０とに並列に供給されるので、高圧吸収器１１０の負荷と低圧吸収器２１０の負荷とを概ね平準化することができる。また、被加熱媒体Ｗが高圧吸収器１１０と低圧吸収器２１０とに並列に供給されるので、高圧被加熱媒体導出管６３Ａ及び低圧被加熱媒体導出管６３Ｂ等にバルブ等の流量調節手段を設けることで、高圧吸収器１１０及び低圧吸収器２１０へ供給される被加熱媒体Ｗの分配比率を容易に変えることができる。また、再生器１３０、２３０及び凝縮器１４０、２４０が、高圧側と低圧側とに分けて設けられているので、冷媒Ｖ及び溶液Ｓのサイクルを高圧側と低圧側とでそれぞれ独立させることができ、高圧吸収器１１０の内圧と低圧吸収器２１０の内圧との差を適切に維持することができる。また、吸収ヒートポンプ１（図１参照）と同様に、高圧蒸発器缶胴１２７及び低圧蒸発器缶胴２２７が、高圧吸収器缶胴１１７及び低圧吸収器缶胴２１７よりも鉛直上方に配置されているので、高圧吸収器缶胴１１７内の液滴の高圧蒸発器缶胴１２７への飛散、及び低圧吸収器缶胴２１７内の液滴の低圧蒸発器缶胴２２７への飛散を回避することができ、高圧吸収器１１０及び低圧吸収器２１０には、それぞれ、エリミネータを設けなくて済む。   According to the absorption heat pump 3 described above, the heated medium W is supplied in parallel to the high-pressure absorber 110 and the low-pressure absorber 210 in the same manner as the absorption heat pump 1 (see FIG. 1). And the load of the low-pressure absorber 210 can be generally leveled. Further, since the medium to be heated W is supplied in parallel to the high-pressure absorber 110 and the low-pressure absorber 210, the high-pressure heated medium outlet pipe 63A, the low-pressure heated medium outlet pipe 63B, and the like are provided with a flow rate adjusting means such as a valve. Thus, the distribution ratio of the heated medium W supplied to the high-pressure absorber 110 and the low-pressure absorber 210 can be easily changed. In addition, since the regenerators 130 and 230 and the condensers 140 and 240 are separately provided on the high-pressure side and the low-pressure side, the refrigerant V and solution S cycles can be made independent on the high-pressure side and the low-pressure side, respectively. In addition, the difference between the internal pressure of the high-pressure absorber 110 and the internal pressure of the low-pressure absorber 210 can be appropriately maintained. Similarly to the absorption heat pump 1 (see FIG. 1), the high-pressure evaporator can body 127 and the low-pressure evaporator can body 227 are arranged vertically above the high-pressure absorber can body 117 and the low-pressure absorber can body 217. Therefore, it is possible to avoid the scattering of the droplets in the high pressure absorber can body 117 to the high pressure evaporator can body 127 and the scattering of the droplets in the low pressure absorber can body 217 to the low pressure evaporator can body 227. In addition, the high pressure absorber 110 and the low pressure absorber 210 do not need to be provided with an eliminator.

以上の説明では、被冷却媒体が冷水ｃであるとしたが、冷水ｃに代えて熱源媒体としての熱源温水あるいは蒸気であってもよい。熱源温水としては、例えば、工場排温水、温泉水、井水、河川水、下水処理水等を用いることができる。   In the above description, the medium to be cooled is the cold water c, but heat source hot water or steam as a heat source medium may be used instead of the cold water c. As the heat source hot water, for example, factory waste water, hot spring water, well water, river water, sewage treated water, or the like can be used.

１ 吸収ヒートポンプ
４０ 凝縮器
１１０ 高圧吸収器
１１１ 高圧加熱管
１１７ 高圧吸収器缶胴
１２０ 高圧蒸発器
１２１ 高圧冷水管
１２５ 高圧エリミネータ
１２７ 高圧蒸発器缶胴
１４０ 高圧凝縮器
２１０ 低圧吸収器
２１１ 低圧加熱管
２１７ 低圧吸収器缶胴
２２０ 低圧蒸発器
２２１ 低圧冷水管
２２５ 低圧エリミネータ
２２７ 低圧蒸発器缶胴
２４０ 低圧凝縮器
ｃ 冷水
Ｓａ１ 高圧濃溶液
Ｓａ２ 低圧濃溶液
Ｓｗ１ 高圧希溶液
Ｓｗ２ 低圧希溶液
Ｖｅ１ 高圧冷媒蒸気
Ｖｅ２ 低圧冷媒蒸気
Ｖｆ 冷媒液
Ｖｇ 再生器冷媒蒸気
Ｖｇ１ 高圧再生器冷媒蒸気
Ｖｇ２ 低圧再生器冷媒蒸気
Ｗ 被加熱媒体 DESCRIPTION OF SYMBOLS 1 Absorption heat pump 40 Condenser 110 High pressure absorber 111 High pressure heating pipe 117 High pressure absorber can body 120 High pressure evaporator 121 High pressure cold water pipe 125 High pressure eliminator 127 High pressure evaporator can body 140 High pressure condenser 210 Low pressure absorber 211 Low pressure heating pipe 217 Low pressure absorber can body 220 Low pressure evaporator 221 Low pressure cold water pipe 225 Low pressure eliminator 227 Low pressure evaporator can body 240 Low pressure condenser c Cold water Sa1 High pressure concentrated solution Sa2 Low pressure concentrated solution Sw1 High pressure diluted solution Sw2 Low pressure diluted solution Ve1 High pressure refrigerant vapor Ve2 Low pressure Refrigerant vapor Vf Refrigerant liquid Vg Regenerator refrigerant vapor Vg1 High-pressure regenerator refrigerant vapor Vg2 Low-pressure regenerator refrigerant vapor W Heated medium

Claims (3)

第１の吸収液に第１の冷媒蒸気を吸収させ、前記第１の吸収液が前記第１の冷媒蒸気を吸収する際に生じる吸収熱を被加熱媒体に奪わせる第１の吸収器と；
第２の吸収液に第２の冷媒蒸気を吸収させ、前記第２の吸収液が前記第２の冷媒蒸気を吸収する際に生じる吸収熱を被加熱媒体に奪わせる第２の吸収器であって、前記第１の吸収器よりも作動圧力が低い第２の吸収器と；
前記第１の吸収器で前記第１の吸収液が前記第１の冷媒蒸気を吸収して生じた第１の希溶液から離脱された冷媒蒸気、及び前記第２の吸収器で前記第２の吸収液が前記第２の冷媒蒸気を吸収して生じた第２の希溶液から離脱された冷媒蒸気の少なくとも一方を導入し、導入した前記冷媒蒸気が保有する熱を被加熱媒体に奪わせて導入した前記冷媒蒸気を凝縮させる凝縮器とを備え；
前記被加熱媒体が前記第１の吸収器及び前記第２の吸収器に分配され、前記第１の吸収器から導出された前記被加熱媒体及び前記第２の吸収器から導出された前記被加熱媒体が前記凝縮器に供給されるように構成された；
吸収ヒートポンプ。 A first absorber that causes the first absorbing liquid to absorb the first refrigerant vapor and causes the heated medium to take away the heat of absorption generated when the first absorbing liquid absorbs the first refrigerant vapor;
The second absorber absorbs the second refrigerant vapor, and the second absorber absorbs the heat generated when the second absorbent absorbs the second refrigerant vapor to the heated medium. A second absorber having a lower operating pressure than the first absorber;
The first absorbent absorbs the first refrigerant vapor in the first absorber and the refrigerant vapor separated from the first dilute solution, and the second absorber in the second absorber. The absorbing liquid absorbs the second refrigerant vapor and introduces at least one of the refrigerant vapors separated from the second dilute solution and causes the heated medium to deprive the heated medium of the introduced refrigerant vapor. A condenser for condensing the introduced refrigerant vapor;
The heated medium is distributed to the first absorber and the second absorber, and the heated medium derived from the first absorber and the heated medium derived from the second absorber Configured to supply media to the condenser;
Absorption heat pump. 前記凝縮器が、
前記第１の希溶液から離脱された冷媒蒸気を導入し、導入した前記冷媒蒸気が保有する熱を被加熱媒体に奪わせて導入した前記冷媒蒸気を凝縮させる第１の凝縮器と、
前記第２の希溶液から離脱された冷媒蒸気を導入し、導入した前記冷媒蒸気が保有する熱を被加熱媒体に奪わせて導入した前記冷媒蒸気を凝縮させる第２の凝縮器と、を含んで構成され；
前記第１の吸収器から導出された前記被加熱媒体が前記第１の凝縮器に供給され；
前記第２の吸収器から導出された前記被加熱媒体が前記第２の凝縮器に供給されるように構成された；
請求項１に記載の吸収ヒートポンプ。 The condenser is
A first condenser that introduces the refrigerant vapor released from the first dilute solution, condenses the refrigerant vapor introduced by causing the heated medium to deprive the heat held by the introduced refrigerant vapor;
A second condenser for introducing the refrigerant vapor released from the second dilute solution and condensing the refrigerant vapor introduced by causing the heated medium to take away the heat held by the introduced refrigerant vapor. Consisting of:
The heated medium derived from the first absorber is supplied to the first condenser;
The heated medium derived from the second absorber is configured to be supplied to the second condenser;
The absorption heat pump according to claim 1. 被冷却媒体の熱で冷媒液を蒸発させて前記第１の冷媒蒸気を生成する第１の蒸発器であって、前記冷媒液及び前記第１の冷媒蒸気を収容する第１の蒸発器缶胴と、前記第１の蒸発器缶胴内の液滴の前記第１の吸収器への飛散を防ぐ第１のエリミネータと、前記被冷却媒体の流路を形成する第１の被冷却媒体流路形成部材と、を有する第１の蒸発器と；
被冷却媒体の熱で冷媒液を蒸発させて前記第２の冷媒蒸気を生成する第２の蒸発器であって、前記冷媒液及び前記第２の冷媒蒸気を収容する第２の蒸発器缶胴と、前記第２の蒸発器缶胴内の液滴の前記第２の吸収器への飛散を防ぐ第２のエリミネータと、前記被冷却媒体の流路を形成する第２の被冷却媒体流路形成部材と、を有する第２の蒸発器とを備え；
前記被冷却媒体が、前記第１の蒸発器に供給され、前記第１の蒸発器から導出された前記被冷却媒体が前記第２の蒸発器に供給されるように構成され；
前記第１の吸収器が、前記被加熱媒体の流路を形成する第１の被加熱媒体流路形成部材及び前記第１の希溶液を収容する第１の吸収器缶胴を有し；
前記第２の吸収器が、前記被加熱媒体の流路を形成する第２の被加熱媒体流路形成部材及び前記第２の希溶液を収容する第２の吸収器缶胴を有し；
前記第１の蒸発器缶胴及び前記第２の蒸発器缶胴が、前記第１の吸収器缶胴及び前記第２の吸収器缶胴よりも上方に配置された；
請求項１又は請求項２に記載の吸収ヒートポンプ。 A first evaporator for evaporating a refrigerant liquid with heat of a medium to be cooled to generate the first refrigerant vapor, wherein the first evaporator can body accommodates the refrigerant liquid and the first refrigerant vapor. A first eliminator for preventing droplets in the first evaporator can body from scattering to the first absorber, and a first cooled medium flow path that forms the flow path of the cooled medium A first evaporator having a forming member;
A second evaporator that evaporates the refrigerant liquid with the heat of the medium to be cooled to generate the second refrigerant vapor, the second evaporator can body containing the refrigerant liquid and the second refrigerant vapor. A second eliminator for preventing droplets in the second evaporator can body from scattering to the second absorber, and a second cooled medium flow path for forming a flow path for the cooled medium A second evaporator having a forming member;
The cooled medium is supplied to the first evaporator, and the cooled medium derived from the first evaporator is supplied to the second evaporator;
The first absorber has a first heated medium flow path forming member that forms a flow path of the heated medium and a first absorber can body that houses the first dilute solution;
The second absorber has a second heated medium flow path forming member that forms a flow path of the heated medium, and a second absorber can body containing the second dilute solution;
The first evaporator can body and the second evaporator can body are disposed above the first absorber can body and the second absorber can body;
The absorption heat pump according to claim 1 or 2.
JP2013069439A 2013-03-28 2013-03-28 Absorption heat pump Pending JP2014190680A (en)

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CN106403354A (en) * 2016-11-19 2017-02-15 双良节能***股份有限公司 Cascading type solution parallel connection double-effect lithium bromide absorption refrigeration heat pump unit
CN106440478A (en) * 2016-11-19 2017-02-22 双良节能***股份有限公司 Cascade-type solution series single-effect lithium bromide absorption refrigeration heat pump unit
CN106440476A (en) * 2016-11-19 2017-02-22 双良节能***股份有限公司 Two-stage independent cascade double-effect lithium bromide absorption type refrigerating heat pump unit
CN106440477A (en) * 2016-11-19 2017-02-22 双良节能***股份有限公司 Overlapping type solution serial-parallel double-effect lithium bromide absorption type refrigerating heat pump unit
CN106482383A (en) * 2016-11-19 2017-03-08 双良节能***股份有限公司 Two-stage nitration superposition type double-effect lithium bromide absorption type refrigerating heat pump unit
CN106482384A (en) * 2016-11-19 2017-03-08 双良节能***股份有限公司 Superposition type solution serial double-effect lithium bromide absorption type refrigeration heat pump unit
CN106642795A (en) * 2016-11-19 2017-05-10 双良节能***股份有限公司 Overlapped solution parallel single-effect lithium bromide absorption refrigeration heat pump unit
CN106679224A (en) * 2016-11-19 2017-05-17 双良节能***股份有限公司 Overlapping type solution serial double-effect lithium bromide absorption refrigeration heat pump unit

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Publication number Priority date Publication date Assignee Title
CN106403354A (en) * 2016-11-19 2017-02-15 双良节能***股份有限公司 Cascading type solution parallel connection double-effect lithium bromide absorption refrigeration heat pump unit
CN106440478A (en) * 2016-11-19 2017-02-22 双良节能***股份有限公司 Cascade-type solution series single-effect lithium bromide absorption refrigeration heat pump unit
CN106440476A (en) * 2016-11-19 2017-02-22 双良节能***股份有限公司 Two-stage independent cascade double-effect lithium bromide absorption type refrigerating heat pump unit
CN106440477A (en) * 2016-11-19 2017-02-22 双良节能***股份有限公司 Overlapping type solution serial-parallel double-effect lithium bromide absorption type refrigerating heat pump unit
CN106482383A (en) * 2016-11-19 2017-03-08 双良节能***股份有限公司 Two-stage nitration superposition type double-effect lithium bromide absorption type refrigerating heat pump unit
CN106482384A (en) * 2016-11-19 2017-03-08 双良节能***股份有限公司 Superposition type solution serial double-effect lithium bromide absorption type refrigeration heat pump unit
CN106642795A (en) * 2016-11-19 2017-05-10 双良节能***股份有限公司 Overlapped solution parallel single-effect lithium bromide absorption refrigeration heat pump unit
CN106679224A (en) * 2016-11-19 2017-05-17 双良节能***股份有限公司 Overlapping type solution serial double-effect lithium bromide absorption refrigeration heat pump unit
CN106440476B (en) * 2016-11-19 2019-07-19 双良节能***股份有限公司 Two sections of independent superposition type double-effect lithium bromide absorption type refrigerating heat pump units
CN106403354B (en) * 2016-11-19 2019-07-19 双良节能***股份有限公司 Superposition type solution parallel double-effect lithium bromide absorption type refrigeration heat pump unit
CN106482383B (en) * 2016-11-19 2019-07-19 双良节能***股份有限公司 Two sections of superposition type double-effect lithium bromide absorption type refrigerating heat pump units
CN106440477B (en) * 2016-11-19 2019-07-19 双良节能***股份有限公司 The series-parallel double-effect lithium bromide absorption type refrigerating heat pump unit of superposition type solution
CN106482384B (en) * 2016-11-19 2019-07-19 双良节能***股份有限公司 Superposition type solution and serial double-effect lithium bromide absorption type refrigeration heat pump unit
CN106679224B (en) * 2016-11-19 2019-07-19 双良节能***股份有限公司 Superposition type solution series double-effect lithium bromide absorption type refrigerating heat pump unit
CN106440478B (en) * 2016-11-19 2019-07-19 双良节能***股份有限公司 Superposition type solution series mono-potency lithium bromide absorption type refrigeration heat pump unit
CN106642795B (en) * 2016-11-19 2019-07-19 双良节能***股份有限公司 Superposition type solution parallel connection mono-potency lithium bromide absorption type refrigeration heat pump unit

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