JPS63254363A - Bleeding device for cold and hot changeover type absorption refrigerator - Google Patents
Bleeding device for cold and hot changeover type absorption refrigeratorInfo
- Publication number
- JPS63254363A JPS63254363A JP8903887A JP8903887A JPS63254363A JP S63254363 A JPS63254363 A JP S63254363A JP 8903887 A JP8903887 A JP 8903887A JP 8903887 A JP8903887 A JP 8903887A JP S63254363 A JPS63254363 A JP S63254363A
- Authority
- JP
- Japan
- Prior art keywords
- cold
- pipe
- absorption refrigerator
- type absorption
- bleed
- 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.)
- Granted
Links
- 238000010521 absorption reaction Methods 0.000 title claims description 22
- 230000000740 bleeding effect Effects 0.000 title 1
- 239000006096 absorbing agent Substances 0.000 claims description 16
- 238000001816 cooling Methods 0.000 claims description 12
- 238000000605 extraction Methods 0.000 claims description 12
- 239000012530 fluid Substances 0.000 claims description 2
- 239000007789 gas Substances 0.000 description 29
- 239000000243 solution Substances 0.000 description 24
- 239000003507 refrigerant Substances 0.000 description 19
- 239000007788 liquid Substances 0.000 description 15
- 238000010438 heat treatment Methods 0.000 description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 238000000926 separation method Methods 0.000 description 5
- 239000012141 concentrate Substances 0.000 description 4
- 239000000498 cooling water Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- AMXOYNBUYSYVKV-UHFFFAOYSA-M lithium bromide Chemical compound [Li+].[Br-] AMXOYNBUYSYVKV-UHFFFAOYSA-M 0.000 description 2
- 229910052763 palladium Inorganic materials 0.000 description 2
- KDLHZDBZIXYQEI-UHFFFAOYSA-N palladium Substances [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
（１′）産業上の利用分野
本発明は蒸発器に内蔵した熱交換器より冷温流体を取出
し得るよう配管構成した冷温切換型の吸収冷凍機の抽気
装置に関する。DETAILED DESCRIPTION OF THE INVENTION (1') Industrial Application Field The present invention relates to an air bleed device for a cold/hot switching type absorption refrigerator having piping configured to take out cold/hot fluid from a heat exchanger built into an evaporator.
ｃｏ）従来の技術
上記型式の吸収冷凍機においては、その冷房運転時には
不凝縮ガスが主に吸収器内に集中して滞留する一方、暖
房運転時には主に蒸発器内に集中して滞留する。co) Prior art In the absorption refrigerator of the above type, noncondensable gas mainly concentrates and stays in the absorber during cooling operation, while it mainly concentrates and stays in the evaporator during heating operation.
そのため、上記型式の吸収冷凍機における抽気装置の従
来の技術として、例えば実開昭６０−１８０９７２号公
報や特開昭６１−１１５７８号公報などにみられるよう
に、抽気装置と吸収冷凍機の蒸発器および吸収器の気相
部とを抽気管路で接続し、これら抽気管路のそれぞれに
開閉弁を備えたものが知られている。Therefore, as a conventional technique for the extraction device in the above-mentioned type of absorption refrigerator, as seen in, for example, Japanese Utility Model Application Publication No. 180972/1982 and Japanese Patent Application Laid-open No. 11578/1982, It is known that the gas phase portion of the absorber and the absorber are connected by an air bleed pipe, and each of these air bleed pipes is provided with an on-off valve.
Ｑ９発明が解決しようとする問題点
上述のような従来の装置においては、吸収冷凍機の冷暖
房運転の切替毎に開閉弁の開閉の切換えを行う必要があ
り、煩雑となる問題点があった。Q9 Problems to be Solved by the Invention In the conventional apparatus as described above, it is necessary to switch the on-off valve to open and close each time the absorption refrigerator is switched between cooling and heating operations, which is a problem that becomes complicated.
本発明は、この問題点に鑑み、冷温切換型吸収冷凍機用
の簡便な抽気装置の提供を目的としたものである。In view of this problem, the present invention aims to provide a simple air extraction device for a cold/hot switching type absorption refrigerator.
（→問題点を解決するための手段
本発明は、上記の問題点を解決する手段として、冷温切
換型吸収冷凍機の蒸発器および吸収器ならびに凝縮器の
気相部と抽気装置とを抽気管路で結び、かつ、凝縮器の
気相部と結んだ抽気管路にオリフィスを備える構成とし
たものである。(→Means for Solving the Problems) The present invention, as a means for solving the above problems, connects the evaporator and absorber of a cold-temperature switching type absorption refrigerator, the gas phase part of the condenser, and the bleed device to a bleed pipe. In this configuration, an orifice is provided in the bleed air pipe connected to the gas phase section of the condenser.
（ホ）作用
本発明の抽気装置は冷温切換型吸収冷凍機の冷房運転時
には不凝縮ガスの集中的に滞留しやすい吸収器および凝
縮器内のガスの抽気作用を主として発揮し、暖房運転時
には不凝縮ガスの集中的に滞留しやすい蒸発器内のガス
の抽気作用を主として発揮する。(E) Function The bleed device of the present invention mainly performs the bleed action of the gas in the absorber and condenser where non-condensable gas tends to accumulate intensively during the cooling operation of the cold-temperature switching type absorption refrigerator, and the non-condensable gas bleeds during the heating operation. Mainly acts as a gas bleeder in the evaporator, where condensed gas tends to stay concentrated.
（勺実施例
図面は本発明による冷温切換型吸収冷凍機用抽気装置の
一実施例を示した概略構成説明図である。(The drawings are schematic structural explanatory diagrams showing an embodiment of an air extraction device for a cold-temperature switching type absorption refrigerator according to the present invention.
図において、（１）は高温発生器、（２）は低温発生器
、（３）は凝縮器、（４）は蒸発器、（５）は吸収器。In the figure, (1) is a high temperature generator, (2) is a low temperature generator, (3) is a condenser, (4) is an evaporator, and (5) is an absorber.
（６）、 （７）は低温、高温溶液熱交換器、（８）は
冷媒液用ポンプ、（９）は希６溶液用ポンプ、（１０）
は濃溶液用ポンプであり、これら機器は希溶液用管路（
１１）、 （１２） 、 （１３）、（１４）、中間濃
度の溶液用管路（１５）、（１６）、濃溶液用管路（１
７）、 （１８）、冷媒用管路（１９） 。(6), (7) are low temperature and high temperature solution heat exchangers, (8) is a pump for refrigerant liquid, (9) is a pump for dilute 6 solution, (10)
is a pump for concentrated solutions, and these devices are connected to pipelines for dilute solutions (
11), (12), (13), (14), pipes for intermediate concentration solutions (15), (16), pipes for concentrated solutions (1
7), (18), refrigerant pipe (19).
（２０）、冷媒液流下用管路（２１）、冷媒液還流用管
路（２２）、 （２３）により接続されて従来の吸収冷
凍機と同様の冷媒〔水〕および溶液〔臭化リチウム水溶
液〕の循環路が形成され、吸収冷凍サイクルが生成され
るようになっている。また、 （２４）は蒸発器（４）
および吸収器（５）の器用と冷媒用管路（１９）とを接
続した冷媒蒸気用管路、（２５）は上記器用と溶液用管
路（１５）とを接続した管路であり、これら管路にはそ
れぞれ冷温切替弁（Ｖｌ）、（ｖ２）が備えである。(20), a refrigerant liquid flow pipe (21), a refrigerant liquid return pipe (22), and (23), which are connected to the same refrigerant [water] and solution [lithium bromide aqueous solution] as in conventional absorption refrigerators. ) circulation path is formed to generate an absorption refrigeration cycle. Also, (24) is the evaporator (4)
and a refrigerant vapor pipe connecting the absorber (5) and the refrigerant pipe (19); (25) is a pipe connecting the above-mentioned pipe and the solution pipe (15); The pipes are each equipped with cold/hot switching valves (Vl) and (v2).
また、 （２６）は高温発生器（１）のバーナー、（２
７）は低温発生器（２）の加熱器、（２８）は凝縮器（
３）の冷却器、（２９）は蒸発器（４）の熱交換器、
（３０）は吸収器（５）の冷却器である。In addition, (26) is the burner of the high temperature generator (1), (2
7) is the heater of the low temperature generator (2), and (28) is the condenser (
3) cooler, (29) is the evaporator (4) heat exchanger,
(30) is a cooler for the absorber (5).
そして、上述の構成の冷暖切換型吸収冷凍機においては
、従来の冷暖切換型吸収冷凍機と同様、冷房時に浴温切
替弁（Ｖ、）、（Ｖｌ） を閉じて運転して吸収冷凍
サイクルを生成させつつ熱交換器（２９）での冷媒の気
化作用で冷水を得る一方、暖房時に上記冷温切換弁を開
き、かつ、冷却器（３０）、（２８）への通水を断って
運転し、熱交換器（２９）での冷媒の凝縮作用により温
水を得る。In the cooling/heating switching type absorption refrigerating machine having the above configuration, like the conventional cooling/heating switching type absorption refrigerating machine, the bath temperature switching valves (V, ), (Vl) are closed during cooling to operate the absorption refrigeration cycle. While generating cold water through the vaporization of the refrigerant in the heat exchanger (29), during heating the cold/temperature switching valve is opened and water flow to the coolers (30) and (28) is cut off. , hot water is obtained by the condensation action of the refrigerant in the heat exchanger (29).
（Ｅｌ）、 （Ｅ２）はそれぞれ不凝縮ガス抽気用のエ
ゼクタ−、（３１）は吸収器（５）の気相部とエゼクタ
−（Ｅ、）とを結ぶ抽気管、（３２）、 （３３鳳エゼ
クタ−（Ｅ２）と凝縮器（３）の気相部、蒸発器（４）
の気相部とを結ぶ抽気管であり、抽気管（３２）にオリ
フィス（０、）が備えである。(El) and (E2) are ejectors for non-condensable gas extraction, (31) are extraction pipes connecting the gas phase part of the absorber (5) and the ejector (E,), (32), (33) Gas phase part of Otori ejector (E2) and condenser (3), evaporator (4)
The bleed pipe (32) is equipped with an orifice (0,).
（３４）はその下端を希溶液用管路（１２）と接続した
溶液用導管で、その分岐管（３５）、 （３６）がそれ
ぞれエゼクタ−（Ｅ、）、（Ｅ２）に接続されている。(34) is a solution conduit whose lower end is connected to the dilute solution conduit (12), and its branch pipes (35) and (36) are connected to the ejectors (E, ) and (E2), respectively. .
（Ｓ）は溶液用導管（３４）に配備したストレーナ−で
あり、これによりエゼクタ−（Ｅｌ）、 （Ｅ２）の溶
液噴射部の目詰りを防ぐようにしている。(S) is a strainer provided in the solution conduit (34), which prevents clogging of the solution injection parts of the ejectors (El) and (E2).
（Ｓ、）はエゼクタ−（Ｅυ、（Ｅ２）で噴射された溶
液とこれによるエゼクタ作用で抽気された不凝縮ガスと
が押し出されて流下する管（３７）、 （３８）を接続
した気液分離槽である。（３９）は気液分離槽（Ｓｏ）
と不凝縮ガス排気用ポンプ（Ｐ）とを接続した排気管で
、この管には開閉弁（Ｖｓ）、 （Ｖ４）が配備されて
いる。また、（４０）は排気管（３９）に備えた水銀マ
ノメータであり、 （４１）は排気管（４０）と抽気管
（３１）とを結んだ開閉弁（Ｖ、）付きの管である。(S,) is a gas-liquid connected to pipes (37) and (38) through which the solution injected by the ejector (Eυ, (E2)) and the non-condensable gas extracted by the ejector action are pushed out and flowed down. It is a separation tank. (39) is a gas-liquid separation tank (So)
This is an exhaust pipe that connects the non-condensable gas exhaust pump (P) to the non-condensable gas exhaust pump (P), and this pipe is equipped with on-off valves (Vs) and (V4). Further, (40) is a mercury manometer provided in the exhaust pipe (39), and (41) is a pipe with an on-off valve (V,) connecting the exhaust pipe (40) and the bleed pipe (31).
なお、 （ＰＣ）は水素ガス排出用のパラジウム・セル
である。Note that (PC) is a palladium cell for discharging hydrogen gas.
（４２）は気液分離槽（Ｓｏ）底部と吸収器（５）の溶
液溜めとを接続した溶液戻し管である。(42) is a solution return pipe connecting the bottom of the gas-liquid separation tank (So) and the solution reservoir of the absorber (5).
次に、このように構成された抽気装置の動作例を冷暖切
換型吸収冷凍機の運転動作と併せて説明する。Next, an example of the operation of the air extraction device configured as described above will be described together with the operation of the cooling/heating switching type absorption refrigerator.
吸収冷凍機の冷房運転時、溶液から分離した冷媒蒸気と
共に不凝縮ガスは凝縮器（３）および蒸発器（４）へ流
れ、これらの気相部に集中して滞留する。そして、この
冷房運転時、凝縮器（３）内の不凝縮ガスと多量の冷媒
蒸気とが抽気管（３２）、 （３３）を通して低圧側の
蒸発器（４）内に流れ込むのを抽気管（３２）めオリフ
ィス（０１）の圧力降下作用で防いでいるため、凝縮器
（３）内の不凝縮ガスは抽気管（３２）を介してエゼク
タ−（Ｅ２）により抽気され。During cooling operation of the absorption refrigerator, non-condensable gas flows to the condenser (3) and evaporator (4) together with the refrigerant vapor separated from the solution, and concentrates in these gas phases. During this cooling operation, the non-condensable gas in the condenser (3) and a large amount of refrigerant vapor flow into the low pressure side evaporator (4) through the bleed pipes (32) and (33). 32) Since this is prevented by the pressure lowering effect of the orifice (01), the non-condensable gas in the condenser (3) is extracted by the ejector (E2) via the extraction pipe (32).
また、吸収器（５）内の不凝縮ガスは抽気管（３１）を
介してエゼクタ−（Ｅ、）により抽気される。Further, the non-condensable gas in the absorber (5) is extracted by the ejector (E,) via the extraction pipe (31).
一方、吸収冷凍機の暖房運転時、不凝縮ガスは溶液から
分離した冷媒蒸気と共に管路（１９）、 （２４）を通
して蒸発器（４）および吸収器（５）の器用内へ主に流
れ、ここから蒸発器（４）の気相部へ流れてここに集中
して滞留する。そして、不凝縮ガスは抽気管（３３）を
介してエゼクタ−（Ｅ２）により抽気される。なお、暖
房運転時、不凝縮ガスのごく一部が、凝縮器（３）側へ
流れるため、抽気管（３２）を介してエゼクタ−（Ｅ２
）により抽気される。On the other hand, during heating operation of the absorption refrigerator, the non-condensable gas mainly flows into the evaporator (4) and absorber (5) through the pipes (19) and (24) together with the refrigerant vapor separated from the solution. From there, it flows into the gas phase of the evaporator (4) and concentrates there. The non-condensable gas is then extracted by the ejector (E2) via the extraction pipe (33). Note that during heating operation, a small portion of the non-condensable gas flows to the condenser (3) side, so it is transferred to the ejector (E2) via the bleed pipe (32)
).
抽気された不凝縮ガスは気液分離槽（Ｓｏ）の気相部に
貯えられ、ここから排気ポンプ（Ｐ）やパラジウム・セ
ル（ＰＣ）により機外へ排出される。The extracted non-condensable gas is stored in the gas phase part of the gas-liquid separation tank (So), and is exhausted from there to the outside of the machine by the exhaust pump (P) and palladium cell (PC).
このように、本発明の抽気装置によれば、冷温切換型吸
収冷凍機のいずれの運転時においても。As described above, according to the air bleed device of the present invention, no matter when the cold/hot switching type absorption refrigerator is operated.
機内の不凝縮ガスを簡便かつ確実に抽気することができ
るのである。The non-condensable gas inside the aircraft can be easily and reliably extracted.
なお、図において、 （４３）は冷媒液還流用管路（２
２） （２３）を結んだオリフィス付き管路、（４４）
は冷媒液還流用管路（２２）と吸収器（５）の溶液溜め
とを結んだ弁付き管路、（４５）は弁付き冷媒液ブロー
用管路、（０２）、 （０，）、 （０４）はそれぞれ
冷媒用管路（２０）、冷媒液還流用管路（２３） 、溶
液用導管（３４）に備えたオリフィス、 （Ｄｌ）、
（Ｄ２）、 （Ｄ３）、 （Ｄ、）はそれぞれ希溶液用
管路（１２）内、溶液用管路（１６）内、濃溶液用管路
（１８）内、冷媒液還流用管路（２３）内ニ配備シタタ
ンバー、（Ｖ６）、（ｖ７）、（Ｖａ ）。In the figure, (43) is the refrigerant liquid return pipe (2).
2) Pipe line with orifice connecting (23), (44)
is a valved pipe connecting the refrigerant liquid return pipe (22) and the solution reservoir of the absorber (5), (45) is a valved refrigerant liquid blow pipe, (02), (0,), (04) are orifices provided in the refrigerant pipe (20), the refrigerant liquid return pipe (23), and the solution pipe (34), (Dl),
(D2), (D3), and (D,) are respectively inside the dilute solution pipe (12), the solution pipe (16), the concentrated solution pipe (18), and the refrigerant liquid return pipe ( 23) Internally deployed sita tambar, (V6), (v7), (Va).
（Ｖｏ）、 （Ｖｔ。）はそれぞれ高温発生器（１）、
低温、高温溶液熱交換器（６）、（７）、希溶液用管路
（１２）、冷媒液還流用管路（２３）に設けた液抜き用
弁、（Ｖｒ ｔ ）は高温発生器（１）の気相部の開放
用弁、（Ｖ１□）、（Ｖｓ ａ ）、（Ｖｌ、）、 （
Ｖ、りはエルボ型の弁、（Ｖｌａ）は逆止弁であり、（
Ｖ、、）はフロート弁である。また。(Vo) and (Vt.) are the high temperature generator (1), respectively;
The liquid drain valves provided in the low temperature and high temperature solution heat exchangers (6), (7), the dilute solution pipe (12), and the refrigerant liquid return pipe (23), (Vr t ) are the high temperature generator ( 1) Gas phase opening valves, (V1□), (Vsa), (Vl,), (
V and ri are elbow-type valves, (Vla) is a check valve, and (
V, , ) is a float valve. Also.
（４６）は冷却水用管路（４７）と冷温水用管路（４８
）とを接続した弁（１８）付き管路であり、（Ｖｔ ＊
）、（Ｖ２Ｏ）、（Ｖ＝＋）、（Ｖｚ−）はそれぞれ
冷却水用管路（４７） 、 （４９）、冷温水用管路（
４８）、（５０）に備えた弁である。(46) is a cooling water pipe (47) and a cold/hot water pipe (48).
) is a conduit with a valve (18) connected to (Vt *
), (V2O), (V=+), (Vz-) are cooling water pipes (47), (49), cold and hot water pipes (
48) and (50).
（５１）は管路（１２）と管路（２５）とを結んだ管で
あり。(51) is a pipe connecting the pipe line (12) and the pipe line (25).
（５２）は管路（１７）、（１８）を結んだ管である。(52) is a pipe connecting the pipes (17) and (18).
（ト）発明の効果
以上のとおり、本発明によれば、従来の抽気装置のよう
に抽気路に備えた開閉弁の開閉を吸収冷凍機の冷暖房運
転の切替毎に切換えるという煩雑さから解放され、簡便
かつ確実に不凝縮ガスを冷暖房運転のいずれの際にも抽
気し得る効果がもたらされる。(G) Effects of the Invention As described above, the present invention eliminates the trouble of switching the on-off valve provided in the air bleed path every time the absorption chiller switches between cooling and heating operations, which is required in conventional air bleed devices. This brings about the effect that non-condensable gas can be easily and reliably extracted during both cooling and heating operations.
図面は本発明による冷温切換型吸収冷凍機用抽気装置の
一実施例を示した概略構成説明図である。
（３）・・・凝縮器、（４）・・・蒸発器、（５）・・
・吸収器、 （２９）・・・熱交換器、 （３１）、
（３２）、 （３３）・・・抽気管路、 （Ｅｌ）、（
Ｅ、）・・・エゼクタ−、（Ｏｓ）・・・オリフィス、
（Ｓ、）・・・気液分離槽。The drawing is a schematic structural explanatory diagram showing an embodiment of the extraction device for a cold/temperature switching type absorption refrigerator according to the present invention. (3)... Condenser, (4)... Evaporator, (5)...
・Absorber, (29)...Heat exchanger, (31),
(32), (33)...Air bleed pipe, (El), (
E, )... Ejector, (Os)... Orifice,
(S,)... Gas-liquid separation tank.
Claims (1)
るように配管構成されている冷温切換型吸収冷凍機の機
内の不凝縮ガスを抽気する装置において、その抽気路で
冷温切換型吸収冷凍機の吸収器および蒸発器ならびに凝
縮器の気相部と抽気装置とが結ばれ、かつ、凝縮器と抽
気装置とを結んだ抽気路にはオリフィスが備えられてい
ることを特徴とした冷温切換型吸収冷凍機の抽気装置。(1) In a device that bleeds non-condensable gas inside a cold-temperature switching type absorption refrigerator whose piping is configured so that cold and hot fluid can be obtained from the heat exchanger built into the evaporator, the cold-temperature switching type absorber is used in the extraction path. A cold temperature cooling system characterized in that an absorber, an evaporator, a gas phase part of a condenser, and a bleed device are connected to each other, and an orifice is provided in a bleed path that connects the condenser and the bleed device. Air extraction device for switching type absorption refrigerator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8903887A JPH0754220B2 (en) | 1987-04-10 | 1987-04-10 | Extraction device for cold / heat switching absorption refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8903887A JPH0754220B2 (en) | 1987-04-10 | 1987-04-10 | Extraction device for cold / heat switching absorption refrigerator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63254363A true JPS63254363A (en) | 1988-10-21 |
| JPH0754220B2 JPH0754220B2 (en) | 1995-06-07 |
Family
ID=13959721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8903887A Expired - Lifetime JPH0754220B2 (en) | 1987-04-10 | 1987-04-10 | Extraction device for cold / heat switching absorption refrigerator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0754220B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0461160A1 (en) * | 1989-03-01 | 1991-12-18 | FRENCH, Andrew Boyd | Snowmaking method and device |
| WO1992008936A1 (en) * | 1990-11-07 | 1992-05-29 | Andrew Boyd French | Snowmaking method and device |
-
1987
- 1987-04-10 JP JP8903887A patent/JPH0754220B2/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0461160A1 (en) * | 1989-03-01 | 1991-12-18 | FRENCH, Andrew Boyd | Snowmaking method and device |
| EP0461160B1 (en) * | 1989-03-01 | 1998-03-25 | Polar Technologies International Pty Limited | Snowmaking device |
| WO1992008936A1 (en) * | 1990-11-07 | 1992-05-29 | Andrew Boyd French | Snowmaking method and device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0754220B2 (en) | 1995-06-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107192153A (en) | Twin-stage sweat cooling system with injector | |
| JPH0886530A (en) | Absorption type water cooling and heating machine | |
| JPS63254363A (en) | Bleeding device for cold and hot changeover type absorption refrigerator | |
| US1489641A (en) | Apparatus for concentrating solutions | |
| KR0180599B1 (en) | Absorptive type refrigerator | |
| JPH0531488Y2 (en) | ||
| JPS63254364A (en) | Bleeding device for absorption refrigerator | |
| JP2645847B2 (en) | Bleeding device for absorption refrigerator | |
| JPH01244262A (en) | Bleeding device for cooling-heating switching type absorption refrigerator | |
| JP3314441B2 (en) | Absorption chiller / heater | |
| JPH01225873A (en) | Double effect absorbing refrigerating machine | |
| JP3416289B2 (en) | Pressure difference sealing device for absorption refrigerators and water heaters | |
| JPH0345090Y2 (en) | ||
| JPH0345091Y2 (en) | ||
| JPS618578A (en) | Discharger for noncondensable gas from absorption refrigerator | |
| JPH01273974A (en) | Gas extracting device for low temperature changing-over type absorption refrigerating machine | |
| US1369365A (en) | Method of refrigeration | |
| JP2594099B2 (en) | Non-condensable gas discharge device of absorption chiller / heater | |
| JPS6325469A (en) | Bleeding device for cold and hot changeover type absorption refrigerator | |
| JPH0413583Y2 (en) | ||
| JPS60221671A (en) | Absorption heat pump | |
| JPS61153351A (en) | Absorption type water chiller and heater | |
| JPS6222977A (en) | Bleeding device for absorption type heat pump | |
| JPH024182A (en) | Non-condensed gas extracting device for absorption type refrigerating machine | |
| JPH0788994B2 (en) | Extraction device for cold / heat switching absorption refrigerator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |