JP2004325048A - Low temperature water manufacturing device - Google Patents

Low temperature water manufacturing device Download PDF

Info

Publication number
JP2004325048A
JP2004325048A JP2003124659A JP2003124659A JP2004325048A JP 2004325048 A JP2004325048 A JP 2004325048A JP 2003124659 A JP2003124659 A JP 2003124659A JP 2003124659 A JP2003124659 A JP 2003124659A JP 2004325048 A JP2004325048 A JP 2004325048A
Authority
JP
Japan
Prior art keywords
temperature water
low
refrigerant
refrigerator
cooling
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2003124659A
Other languages
Japanese (ja)
Inventor
Hiroyuki Tsuda
博之 津田
Takamitsu Iwase
卓光 岩瀬
Hidefumi Tashiro
英史 田代
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tokyo Gas Co Ltd
Toyo Seisakusho KK
Original Assignee
Tokyo Gas Co Ltd
Toyo Seisakusho KK
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tokyo Gas Co Ltd, Toyo Seisakusho KK filed Critical Tokyo Gas Co Ltd
Priority to JP2003124659A priority Critical patent/JP2004325048A/en
Publication of JP2004325048A publication Critical patent/JP2004325048A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • 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

Landscapes

  • Sorption Type Refrigeration Machines (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a low temperature water manufacturing device capable of producing low temperature water at a low running cost by using exhaust heat from the outside without being affected by the change of outside air temperature. <P>SOLUTION: The low temperature water manufacturing device provided with a compression refrigerating machine 1 sending a refrigerant discharged from a compressor 3 to an evaporator 7 via a condenser 5 and returning the refrigerant evaporated by the evaporator to the compressor 3, and producing low temperature water by evaporation latent heat of the refrigerant in the evaporator 7 is provided with a non-compression type refrigerating machine 2 not provided with a compressor and producing cold by using the exhaust heat from the outside, and it is composed so that cooling of cooling water supplied to the condenser 5 of the compression refrigerating machine is carried out by the cold produced by the non-compression type refrigerating machine. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

【０００１】
【発明の属する技術分野】
本発明は、低温冷熱を必要とする設備へ低温水を供給するための低温水製造装置に関し、より詳しくは工場等の設備から排出される排温水や排蒸気等の排熱を有効に利用し、外気温の変化に影響を殆ど受けることなく安定した低温水の供給を行なうことができる低温水製造装置に関する。
【０００２】
【従来の技術とその問題点】
氷蓄熱槽や冷凍倉庫あるいは低温環境試験室等の低温冷熱を必要とする設備へ冷熱を供給する装置としては、極めて一般的な冷媒回路、すなわち圧縮機から吐出された冷媒ガスを凝縮器にて液化し、液冷媒を減圧して蒸発器に送ってこの蒸発器における冷媒の気化潜熱により、水やブライン等の冷熱媒体を冷却し、蒸発器で気化した冷媒ガスを圧縮機に戻すという圧縮式冷媒回路を備えるものがある。
【０００３】
上述した従来の装置では、凝縮器に供給する冷却水の供給源に冷却塔を用いるのが一般的であるが、冷却塔から供給される冷却水は外気温に応じて変動し、外気温の日較差や年較差に応じて冷却水の温度にも差が生じる。
【０００４】
したがって、安定した冷熱の供給を行なうには冷却水の温度が最も高い例えば夏季日中に得られる冷却水の温度に合わせて上述した冷熱供給装置の圧縮機能力を設定しなければならず、設備コストもランニングコストも嵩む。
【０００５】
また、冷却水温度が上昇すると圧縮機の軸動力が大となり、冷凍回路の成績係数（ＣＯＰ）も低下するという問題もある。
【０００６】
ところで、例えば食品工場のように排温水や排蒸気等の排熱が定常的に生じる施設においては、この排熱を利用して冷熱を生成することにより、排熱処理と冷熱生成用のコスト低減を図ることが従来から行なわれており、このように排熱から冷熱を生成する装置としては吸収式冷凍機（特許文献１参照）、吸着式冷凍機（特許文献２参照）、フラッシュ式冷凍機（特許文献３参照）等が実用に供されている。
【０００７】
しかしながら、これらの冷凍機から得られる冷熱は比較的小であり、例えば小容積の室内の空調用や、工場排熱の温度を下げて放出するための冷却用というようなあまり低温を必要としないものには好適なのであるが、氷蓄熱装置や低温倉庫のような氷点下の冷熱が必要な設備に低温水を供給する装置にそのまま採用することはできない。
【０００８】
【特許文献１】
特開平１−２３９３５４号公報（第１頁−第３頁、第１図−第３図）
【０００９】
【特許文献２】
特開平６−２６７２７号公報（第２頁、図６）
【００１０】
【特許文献３】
特開２００２−４８４３０号公報（第２頁−第５頁、図１、図３）
【００１１】
【目的】
本発明の目的とするところは、外部からの排熱を利用して外気温の変化に影響されることなく低温水を低いランニングコストで生成することができる低温水製造装置を提供することにある。
【００１２】
【発明の構成】
上記目的を達成するために、本発明の請求項１に係る装置は、圧縮機から吐出された冷媒が凝縮器を経て蒸発器に送られ、この蒸発器で気化した冷媒が圧縮機に戻される圧縮式冷凍機を備え、前記蒸発器における冷媒の気化潜熱により低温水を生成する低温水製造装置において、圧縮機を備えず、外部からの排熱を利用して冷熱を生成する非圧縮式の冷凍機を備え、この非圧縮式冷凍機で生成された冷熱によって、前記圧縮式冷凍機の凝縮器に供給する冷却水の冷却を行なう構成のものとしてある。
【００１３】
本発明の請求項２に係る装置は、前記低温水製造装置がさらに冷却塔を備え、この冷却塔にて冷却した冷却水と、前記非圧縮式冷凍機にて冷却した冷却水を、外部からの排熱の供給量や外気温等の諸条件に応じていずれか一方あるいは混合して前記圧縮式冷凍機の凝縮器に供給する構成としたものとしてある。
【００１４】
本発明の請求項３に係る装置は、前記圧縮機が、前記凝縮器への冷却水が冷却塔のみから供給される場合にはロードを下げて運転されるように構成したものとしてある。
また、前記非圧縮式の冷凍機は吸収式冷凍機で構成したものとしてある。
【００１５】
【実施例】
以下、本発明に係る装置の実施例を添付図面に示す具体例に基づいて詳細に説明する。
本発明に係る装置は、圧縮式冷凍機１と非圧縮式冷凍機２を備え、圧縮式冷凍機１は、圧縮機３の吐出口に一端が接続された吐出管４ａの他端が凝縮器５の冷媒入口５ａに接続され、同出口５ｂに接続された冷媒管４ｂの他端が膨張弁６を介して蒸発器７の冷媒入口７ａに接続され、同出口７ｂに一端が接続された吸入管４ｃの他端がレシーバ８を介して圧縮機３の吸入口に接続されている。
【００１６】
しかして、前記凝縮器５と非圧縮式冷凍機２との間には第１冷却水送り管９ａと第１冷却水戻し間９ｂが接続されていて、凝縮器の冷却水入口５ｃに非圧縮式冷凍機２からの冷却水が供給され、凝縮器の冷却水出口５ｄからは冷媒と熱交換した後の冷却水が非圧縮式冷凍機２に戻されるようになっている。
【００１７】
また、非圧縮式冷凍機２は第２冷却水送り管１０ａと第２冷却水戻し管１０ｂによって外部の冷却塔１１からの冷却水が供給されるようになっており、さらに、非圧縮式冷凍機２は温水送り管１２ａと温水戻し管１２ｂによって外部の排熱回収用熱交換器１３からの温水が供給されるようになっている。
【００１８】
前記冷却塔１１からの第２冷水送り管１０ａの途中には第２冷却水ポンプ１６と第２三方制御弁１７が設けられ、かつ前記第１冷却水戻し管９ｂの途中には第１冷却水ポンプ１４と第１三方制御弁１５が設けられていて、第１三方制御弁１５から分岐する第１バイパス管１８が第２冷却水戻し管１０ｂの途中に接続されているとともに第２三方制御弁１７から分岐する第２バイパス管１９が第１冷却水送り管９ａに接続されていて、第１および第２の三方制御弁１５、１７の開閉および開度制御によって凝縮器５へ供給する冷却水を非圧縮式冷凍機２からのものと冷却塔１１からのものに切り替えあるいは任意の割合で混合できるようになっている。
【００１９】
なお、図１中の符号２０は熱負荷側からの水やブライン等の冷熱媒体を蒸発器７に供給するための送液ポンプ、２１は熱排出部からの冷熱媒体、例えば温水を排熱回収用熱交換器１３に供給するための送液ポンプをそれぞれ示している。
【００２０】
前述した非圧縮式の冷凍機２は、例えば図２に示すような構成の吸収式冷凍機としてあって、同図２において符号２２は蒸発器、２３は凝縮器、２４は吸収器、２５は再生器をそれぞれ示す。
【００２１】
このような構成の吸収式冷凍機では、吸収器２４にて例えばアンモニア等の冷媒を水等の溶媒に吸収せしめ、第２冷水送り管１０ａから供給される冷却水によって冷却された濃厚な冷媒溶液が溶液ポンプ２６によって再生器２５に送られ、温水送り管１２ａから供給される温水によって加熱されて冷媒ガスを生成し、この冷媒ガスが凝縮器２３にて冷却されて液冷媒となり、膨張弁２７にて減圧されて蒸発器２２に供給され、同蒸発器内で気化して第１冷水戻し管９ｂからの冷却水を冷却し、吸収器２４に戻されるようになっている。そして、上記蒸発器２２にて冷却された冷却水は第１冷水送り管９ａから圧縮式冷凍機１に送られる。なお、同図２中の符号２８は液化冷媒を蒸発器内で循環させるための冷媒ポンプを示している。
【００２２】
上述した吸収式冷凍機は最も基本的な構成のものであり、従来から公知の種々の吸収式冷凍機の構成を適用することができる。
【００２３】
しかして、本発明の低温水製造装置においては、外部からの排熱の供給がある場合にはこの排熱を利用して非圧縮式冷凍機２を駆動せしめ、同冷凍機２からの冷却水を利用して圧縮式冷凍機１における凝縮器５での冷媒の液化を行ない、排熱の供給量が小である場合には非圧縮式冷凍機２の駆動を停止し、冷却塔１１から冷却水を利用して圧縮式冷凍機１における冷媒の液化が行なわれるようにする。
【００２４】
具体的には、食品工場等の生産設備において、生産プロセスで使用された熱の排熱や、発電用ガスエンジン等の排熱が大である日中にはこの排熱を利用して非圧縮式冷凍機２における冷却水の生成を行うことにより、冷却塔からの冷却水温度が比較的高くても圧縮式冷凍機１における低温水の生成が安定して行なわれ、生産プロセスや発電用ガスエンジンが停止あるいは駆動量が減少する夜間には、外気温が低下して冷却水の冷却効率の高い冷却塔１１からの冷却水を利用でき、したがって外気温の変化に影響されることなく常に安定した低温水の製造を行なうことができる。
【００２５】
【発明の効果】
本発明に係る装置によれば、外部からの排熱を有効に利用して吸収式冷凍機等の非圧縮式冷凍機で生成した冷却水を圧縮式冷凍機の凝縮冷熱に使用するので、低温水の生成を安定してしかも低コストに行なうことができる。
【００２６】
また、圧縮式冷凍機への冷却水の供給を、排熱量が大である例えば日中には非圧縮式冷凍機から行ない、排熱量が小である例えば夜間には冷却塔から行なうように切り替えることができるので、外気温の変化に殆ど影響されることなく常に安定した低温水の製造を行なうことができる。
【図面の簡単な説明】
【図１】本発明に係る装置の実施例を示す構成図。
【図２】非圧縮式冷凍機の一例である吸収式冷凍機の具体例を示す構成図。
【符号の説明】
１ 圧縮式冷凍機 ２ 非圧縮式冷凍機
３ 圧縮機 ４ａ 吐出管
４ｂ 冷媒管 ４ｃ 吸入管
５ 凝縮器 ６ 膨張弁
７ 蒸発器 ８ レシーバ
９ａ 第１冷却水送り管 ９ｂ 第１冷却水戻し管
１０ａ 第２冷却水送り管 １０ｂ 第２冷却水戻し管
１１ 冷却塔 １２ａ 温水送り管
１２ｂ 温水戻し管 １３ 排熱回収用熱交換器
１４ 第１冷却水ポンプ １５ 第１三方制御弁
１６ 第２冷却水ポンプ １７ 第２三方制御弁
１８ 第１バイパス管 １９ 第２バイパス管
２０、２１ 送液ポンプ ２２ 蒸発器
２３ 凝縮器 ２４ 吸収器
２５ 再生器 ２６ 溶液ポンプ
２７ 膨張弁 ２８ 冷媒ポンプ[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a low-temperature water producing apparatus for supplying low-temperature water to equipment that requires low-temperature refrigeration, and more specifically, effectively utilizes waste heat such as waste water or steam discharged from equipment such as factories. Also, the present invention relates to a low-temperature water producing apparatus capable of supplying stable low-temperature water almost without being affected by changes in outside air temperature.
[0002]
[Conventional technology and its problems]
As a device that supplies cold heat to equipment that requires low-temperature cold heat, such as an ice storage tank, a freezing warehouse, or a low-temperature environment test room, an extremely common refrigerant circuit, that is, a refrigerant gas discharged from a compressor is used in a condenser. A compression type in which the refrigerant is liquefied, the liquid refrigerant is decompressed and sent to an evaporator, and the latent heat of vaporization of the refrigerant in the evaporator cools a cooling medium such as water or brine and returns the refrigerant gas vaporized by the evaporator to the compressor. Some include a refrigerant circuit.
[0003]
In the above-described conventional apparatus, a cooling tower is generally used as a supply source of the cooling water supplied to the condenser. However, the cooling water supplied from the cooling tower fluctuates according to the outside air temperature, and The temperature of the cooling water varies according to the daily range and the annual range.
[0004]
Therefore, in order to supply the stable cold heat, the compression function of the above-described cold-heat supply device must be set in accordance with the temperature of the coolant having the highest temperature of the coolant, for example, the coolant obtained during a summer day. Both costs and running costs increase.
[0005]
Further, there is also a problem that when the cooling water temperature rises, the shaft power of the compressor increases, and the coefficient of performance (COP) of the refrigeration circuit also decreases.
[0006]
By the way, in a facility such as a food factory where waste heat such as waste heat water or waste steam is constantly generated, by using this waste heat to generate cold heat, it is possible to reduce costs for waste heat treatment and cold heat generation. Conventionally, an apparatus such as an absorption refrigerator (see Patent Literature 1), an adsorption refrigerator (see Patent Literature 2), and a flash refrigerator (see, for example, Japanese Patent Application Laid-Open (JP-A) Nos. 2000-187, 1993) have been used to generate cold from exhaust heat. Patent Document 3) and the like have been put to practical use.
[0007]
However, the cooling heat obtained from these refrigerators is relatively small, and does not require a very low temperature, for example, for air conditioning in a small-volume room or for cooling in order to reduce and discharge the temperature of factory exhaust heat. Although it is suitable for an apparatus, it cannot be directly applied to an apparatus that supplies low-temperature water to equipment requiring cold heat below freezing, such as an ice storage device or a low-temperature warehouse.
[0008]
[Patent Document 1]
JP-A-1-239354 (pages 1 to 3, FIGS. 1 to 3)
[0009]
[Patent Document 2]
JP-A-6-26727 (page 2, FIG. 6)
[0010]
[Patent Document 3]
JP-A-2002-48430 (Pages 2 to 5, FIGS. 1 and 3)
[0011]
【Purpose】
An object of the present invention is to provide a low-temperature water production apparatus that can generate low-temperature water at low running costs without being affected by changes in the outside air temperature by using exhaust heat from the outside. .
[0012]
Configuration of the Invention
In order to achieve the above object, in the apparatus according to claim 1 of the present invention, the refrigerant discharged from the compressor is sent to the evaporator via the condenser, and the refrigerant vaporized by the evaporator is returned to the compressor. A low-temperature water producing apparatus that includes a compression refrigerator and generates low-temperature water by latent heat of vaporization of the refrigerant in the evaporator, does not include a compressor, and uses an exhaust heat from the outside to generate cold heat. A refrigerator is provided, and cooling water supplied to a condenser of the compression refrigerator is cooled by cold generated by the non-compression refrigerator.
[0013]
In the apparatus according to claim 2 of the present invention, the low-temperature water producing apparatus further includes a cooling tower, and cooling water cooled by the cooling tower and cooling water cooled by the non-compression chiller are supplied from outside. Any one or a mixture thereof is supplied to the condenser of the compression refrigerator according to various conditions such as a supply amount of exhaust heat and an outside air temperature.
[0014]
The apparatus according to claim 3 of the present invention is configured such that the compressor is operated with a reduced load when the cooling water to the condenser is supplied only from the cooling tower.
Further, the non-compression type refrigerator is configured as an absorption type refrigerator.
[0015]
【Example】
Hereinafter, embodiments of the apparatus according to the present invention will be described in detail based on specific examples shown in the accompanying drawings.
The apparatus according to the present invention includes a compression type refrigerator 1 and a non-compression type refrigerator 2. The compression type refrigerator 1 is configured such that the other end of a discharge pipe 4 a having one end connected to the discharge port of the compressor 3 has a condenser. 5 is connected to the refrigerant inlet 5a, and the other end of the refrigerant pipe 4b connected to the outlet 5b is connected to the refrigerant inlet 7a of the evaporator 7 via the expansion valve 6, and the suction is connected to the outlet 7b at one end. The other end of the pipe 4c is connected to a suction port of the compressor 3 via a receiver 8.
[0016]
Thus, a first cooling water feed pipe 9a and a first cooling water return space 9b are connected between the condenser 5 and the non-compression refrigerator 2, and a non-compressed cooling water inlet 5c of the condenser is provided. Cooling water from the refrigerator 2 is supplied, and cooling water after heat exchange with the refrigerant is returned to the non-compression refrigerator 2 from a cooling water outlet 5d of the condenser.
[0017]
In addition, the non-compression chiller 2 is configured such that the cooling water from the external cooling tower 11 is supplied by the second cooling water feed pipe 10a and the second cooling water return pipe 10b. The machine 2 is configured such that hot water is supplied from an external heat recovery heat exchanger 13 through a hot water feed pipe 12a and a hot water return pipe 12b.
[0018]
A second cooling water pump 16 and a second three-way control valve 17 are provided in the middle of the second cooling water feed pipe 10a from the cooling tower 11, and the first cooling water is provided in the middle of the first cooling water return pipe 9b. A pump 14 and a first three-way control valve 15 are provided, and a first bypass pipe 18 branching from the first three-way control valve 15 is connected in the middle of the second cooling water return pipe 10b. A second bypass pipe 19 branching from 17 is connected to the first cooling water feed pipe 9a, and the cooling water supplied to the condenser 5 by opening and closing the first and second three-way control valves 15, 17 and controlling the opening degree. Can be switched to the one from the non-compression refrigerator 2 and the one from the cooling tower 11 or mixed at an arbitrary ratio.
[0019]
In addition, reference numeral 20 in FIG. 1 denotes a liquid feed pump for supplying a cooling medium such as water or brine from the heat load side to the evaporator 7, and 21 denotes a cooling medium from the heat discharging unit, for example, heat recovery of hot water. The liquid supply pumps for supplying to the heat exchanger 13 are shown.
[0020]
The incompressible refrigerator 2 described above is, for example, an absorption refrigerator having a configuration as shown in FIG. 2. In FIG. 2, reference numeral 22 denotes an evaporator, 23 denotes a condenser, 24 denotes an absorber, and 25 denotes an absorber. Each shows a regenerator.
[0021]
In the absorption refrigerator having such a configuration, for example, a refrigerant such as ammonia is absorbed by a solvent such as water in the absorber 24, and the concentrated refrigerant solution cooled by the cooling water supplied from the second cold water feed pipe 10a. Is sent to the regenerator 25 by the solution pump 26, and is heated by the hot water supplied from the hot water feed pipe 12a to generate a refrigerant gas. The refrigerant gas is cooled by the condenser 23 to become a liquid refrigerant, and the expansion valve 27 The cooling water is supplied to the evaporator 22, is vaporized in the evaporator, cools the cooling water from the first cold water return pipe 9 b, and is returned to the absorber 24. Then, the cooling water cooled by the evaporator 22 is sent to the compression refrigerator 1 from the first cold water feed pipe 9a. Reference numeral 28 in FIG. 2 indicates a refrigerant pump for circulating the liquefied refrigerant in the evaporator.
[0022]
The above-mentioned absorption refrigerator has the most basic configuration, and various configurations of conventionally known absorption refrigerators can be applied.
[0023]
Thus, in the low-temperature water producing apparatus of the present invention, when there is a supply of exhaust heat from outside, the exhaust heat is used to drive the non-compression type refrigerator 2 and the cooling water from the refrigerator 2 Is used to liquefy the refrigerant in the condenser 5 in the compression refrigerator 1, and when the supply amount of the exhaust heat is small, the operation of the non-compression refrigerator 2 is stopped and cooling from the cooling tower 11 is performed. The refrigerant is liquefied in the compression refrigerator 1 using water.
[0024]
Specifically, in production facilities such as food factories, the heat used in the production process is exhausted, and during the daytime when the exhaust heat of a gas engine for power generation is large, uncompressed By generating the cooling water in the cooling type refrigerator 2, even if the temperature of the cooling water from the cooling tower is relatively high, the generation of the low-temperature water in the compression type refrigerator 1 is performed stably, and the production process and the gas for power generation are performed. During the night when the engine stops or the driving amount decreases, the outside air temperature decreases and the cooling water from the cooling tower 11 having high cooling water cooling efficiency can be used, so that it is always stable without being affected by changes in the outside air temperature. The production of low-temperature water can be performed.
[0025]
【The invention's effect】
According to the device according to the present invention, the cooling water generated in an incompressible refrigerator such as an absorption refrigerator is effectively used by effectively using the exhaust heat from the outside, and is used for the condensing cooling of the compression refrigerator. Water can be generated stably and at low cost.
[0026]
Further, the supply of the cooling water to the compression refrigerator is switched from the non-compression refrigerator during the day when the amount of exhaust heat is large, for example, during the day, and from the cooling tower at night when the amount of exhaust heat is small, for example, at night. Therefore, stable production of low-temperature water can be performed at all times without being substantially affected by changes in the outside air temperature.
[Brief description of the drawings]
FIG. 1 is a configuration diagram showing an embodiment of an apparatus according to the present invention.
FIG. 2 is a configuration diagram showing a specific example of an absorption refrigerator as an example of a non-compression refrigerator.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Compression refrigerator 2 Non-compression refrigerator 3 Compressor 4a Discharge pipe 4b Refrigerant pipe 4c Suction pipe 5 Condenser 6 Expansion valve 7 Evaporator 8 Receiver 9a First cooling water feed pipe 9b First cooling water return pipe 10a 2 cooling water feed pipe 10b second cooling water return pipe 11 cooling tower 12a hot water feed pipe 12b hot water return pipe 13 waste heat recovery heat exchanger 14 first cooling water pump 15 first three-way control valve 16 second cooling water pump 17 Second three-way control valve 18 First bypass pipe 19 Second bypass pipe 20, 21 Liquid feed pump 22 Evaporator 23 Condenser 24 Absorber 25 Regenerator 26 Solution pump 27 Expansion valve 28 Refrigerant pump

Claims (4)

圧縮機から吐出された冷媒が凝縮器を経て蒸発器に送られ、この蒸発器で気化した冷媒が圧縮機に戻される圧縮式冷凍機を備え、前記蒸発器における冷媒の気化潜熱により低温水を生成する低温水製造装置において、圧縮機を備えず、外部からの排熱を利用して冷熱を生成する非圧縮式の冷凍機を備え、この非圧縮式冷凍機で生成された冷熱によって、前記圧縮式冷凍機の凝縮器に供給する冷却水の冷却を行なう構成とした低温水製造装置。A refrigerant discharged from the compressor is sent to an evaporator through a condenser, and the refrigerant vaporized in the evaporator is provided with a compression refrigerator in which the refrigerant is returned to the compressor.Low-temperature water is generated by latent heat of vaporization of the refrigerant in the evaporator. In the low-temperature water producing apparatus to be generated, the apparatus does not include a compressor, and includes a non-compression refrigerator that generates cold heat by using exhaust heat from the outside.By the cold generated by the non-compression refrigerator, A low-temperature water producing apparatus configured to cool cooling water supplied to a condenser of a compression refrigerator. 前記低温水製造装置は、さらに冷却塔を備え、この冷却塔にて冷却した冷却水と、前記非圧縮式冷凍機にて冷却した冷却水を、外部からの排熱の供給量や外気温等の諸条件に応じていずれか一方あるいは混合して前記圧縮式冷凍機の凝縮器に供給する構成としたことを特徴とする請求項１に記載の低温水製造装置。The low-temperature water production apparatus further includes a cooling tower, and the cooling water cooled by the cooling tower and the cooling water cooled by the incompressible refrigerator are supplied with an external heat supply amount, an outside air temperature, and the like. The low-temperature water production apparatus according to claim 1, wherein one or a mixture is supplied to the condenser of the compression refrigerator according to the various conditions. 前記圧縮機は、前記凝縮器への冷却水が冷却塔のみから供給される場合にはロードを下げて運転されるように構成してなる請求項２に記載の低温水製造装置。The low-temperature water production apparatus according to claim 2, wherein the compressor is configured to operate with a reduced load when cooling water to the condenser is supplied only from the cooling tower. 前記非圧縮式の冷凍機は、吸収式冷凍機である請求項１または２に記載の低温水製造装置。The low-temperature water production device according to claim 1 or 2, wherein the non-compression refrigerator is an absorption refrigerator.
JP2003124659A 2003-04-30 2003-04-30 Low temperature water manufacturing device Pending JP2004325048A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2003124659A JP2004325048A (en) 2003-04-30 2003-04-30 Low temperature water manufacturing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2003124659A JP2004325048A (en) 2003-04-30 2003-04-30 Low temperature water manufacturing device

Publications (1)

Publication Number Publication Date
JP2004325048A true JP2004325048A (en) 2004-11-18

Family

ID=33502132

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2003124659A Pending JP2004325048A (en) 2003-04-30 2003-04-30 Low temperature water manufacturing device

Country Status (1)

Country Link
JP (1) JP2004325048A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103090587A (en) * 2013-01-21 2013-05-08 深圳市庄合地能产业科技有限公司 Cold and hot external balance system for combined use of lithium bromide unit and refrigeration storage
CN103090592A (en) * 2013-01-21 2013-05-08 深圳市庄合地能产业科技有限公司 Cold and hot external balancer set
WO2014111011A1 (en) * 2013-01-21 2014-07-24 深圳市庄合智能产业科技有限公司 Cold and heat balance system combining lithium bromide unit and cold storage

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103090587A (en) * 2013-01-21 2013-05-08 深圳市庄合地能产业科技有限公司 Cold and hot external balance system for combined use of lithium bromide unit and refrigeration storage
CN103090592A (en) * 2013-01-21 2013-05-08 深圳市庄合地能产业科技有限公司 Cold and hot external balancer set
WO2014111011A1 (en) * 2013-01-21 2014-07-24 深圳市庄合智能产业科技有限公司 Cold and heat balance system combining lithium bromide unit and cold storage
WO2014111017A1 (en) * 2013-01-21 2014-07-24 深圳市庄合智能产业科技有限公司 External cold and heat balance unit
WO2014111014A1 (en) * 2013-01-21 2014-07-24 深圳市庄合智能产业科技有限公司 External cold and heat balance system combining lithium bromide unit and cold storage

Similar Documents

Publication Publication Date Title
CN105202804A (en) Adsorption and vapor compression cascade type refrigeration device and control method thereof
CN103649649A (en) Hybrid absorption-compression chiller
JP2004325048A (en) Low temperature water manufacturing device
US10837682B2 (en) Devices with hybrid vapour compression-adsorption cycle and method for implementation thereof
JP2002061980A (en) Compression type heat pump air conditioner and method for operating the same
JP2003056937A (en) Heat pump system
JP3821286B2 (en) Refrigeration system combining absorption type and compression type and its operating method
CN113124514A (en) Adsorption type cold accumulation air conditioning system
JP2776200B2 (en) Absorption type ice cold storage device
JP4156842B2 (en) Operation method of cold heat generation system and cold heat generation system
JPH05272837A (en) Compression absorption composite heat pump
KR200267157Y1 (en) refrigeration system
KR20030041380A (en) Refrigeration system
JP2003207223A (en) Exhaust heat recovery-type refrigerating device
JPH01208668A (en) Heat storage type cold and hot heat generating device
KR101775036B1 (en) Hybrid air conditioning system for vessel
JP2004028374A (en) Refrigerating equipment combined with absorption type and compression type
JP2003336929A (en) Absorbing and compression type refrigerator and method of operating the refrigerator
JP2004069276A (en) Waste heat recovering cooling system
JPH08247571A (en) Air-conditioner
JP2004028401A (en) Air-conditioner for vehicle
JP2003004330A (en) Exhaust heat recovery air conditioner
JPH04203857A (en) Absorption refrigerating machine
JPH05223405A (en) Method and device for supplying heat
JP4595129B2 (en) Package device for process cooling and air conditioning and its heat source supply method

Legal Events

Date Code Title Description
RD02 Notification of acceptance of power of attorney

Free format text: JAPANESE INTERMEDIATE CODE: A7422

Effective date: 20050411

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A821

Effective date: 20050411

A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20050826

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20080902

A02 Decision of refusal

Free format text: JAPANESE INTERMEDIATE CODE: A02

Effective date: 20090113