JPH02217761A - Air-cooled heat pump type refrigerator with hot water heater - Google Patents
Air-cooled heat pump type refrigerator with hot water heaterInfo
- Publication number
- JPH02217761A JPH02217761A JP3618589A JP3618589A JPH02217761A JP H02217761 A JPH02217761 A JP H02217761A JP 3618589 A JP3618589 A JP 3618589A JP 3618589 A JP3618589 A JP 3618589A JP H02217761 A JPH02217761 A JP H02217761A
- Authority
- JP
- Japan
- Prior art keywords
- valve
- fluid
- heat exchanger
- pressure
- pressure regulating
- 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
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims description 11
- 230000001105 regulatory effect Effects 0.000 claims abstract description 13
- 238000005057 refrigeration Methods 0.000 claims abstract description 12
- 239000007788 liquid Substances 0.000 claims description 31
- 238000004378 air conditioning Methods 0.000 claims description 5
- 239000003507 refrigerant Substances 0.000 abstract description 14
- 238000007789 sealing Methods 0.000 abstract description 2
- 239000012530 fluid Substances 0.000 abstract 9
- 238000001816 cooling Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- UNPLRYRWJLTVAE-UHFFFAOYSA-N Cloperastine hydrochloride Chemical compound Cl.C1=CC(Cl)=CC=C1C(C=1C=CC=CC=1)OCCN1CCCCC1 UNPLRYRWJLTVAE-UHFFFAOYSA-N 0.000 description 1
- 241000254158 Lampyridae Species 0.000 description 1
- 244000061354 Manilkara achras Species 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- WDQNIWFZKXZFAY-UHFFFAOYSA-M fentin acetate Chemical compound CC([O-])=O.C1=CC=CC=C1[Sn+](C=1C=CC=CC=1)C1=CC=CC=C1 WDQNIWFZKXZFAY-UHFFFAOYSA-M 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
Landscapes
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
不発明は、冷凍サイクル内の異常圧力上昇による事故防
止に好適な冷凍サイクルに関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a refrigeration cycle suitable for preventing accidents due to abnormal pressure rise within the refrigeration cycle.
従来の裂直ば、公開技＠舒号８８−５４２２号に記載の
ように、液配管部が、逆止弁、受液器、電磁弁により形
成さルていた。しかし、この電路では、外気温式が高い
状態でテラーユニブトを停止した場せ、逆止弁とｔａｉ
ｌ弁により液封となり、圧力上昇により、受′ｅ、器用
安全弁の作動、配管の４裂発生等の問題があった。In the conventional straight pipe, the liquid piping section was formed by a check valve, a liquid receiver, and a solenoid valve, as described in Kokai Gi@Shun No. 88-5422. However, in this electric circuit, if the teller unit is stopped when the outside temperature is high, the check valve
The l valve created a liquid seal, and the increased pressure caused problems such as the operation of the receiver, the safety valve, and the occurrence of four cracks in the piping.
上記従来技術の冷凍サイクルを第２図に示す。 The refrigeration cycle of the above-mentioned prior art is shown in FIG.
この冷ＩｆＬｌｌクルでは、冷房運転時の冷媒の流れは
圧縮機１呻四万弁２→空気側熱交換器８−逆止弁８−？
受液器１１→電磁弁１３→膨張弁１ル→逆止弁１６→空
調用熱交遺器５→四方弁２→アキエムレータ１９→圧Ｍ
ａ機１となる。In this cold IfLll system, the flow of refrigerant during cooling operation is from compressor 1 to valve 2 to air side heat exchanger 8 to check valve 8 to ?
Liquid receiver 11 → Solenoid valve 13 → Expansion valve 1 → Check valve 16 → Air conditioning heat exchanger 5 → Four-way valve 2 → Akie emulator 19 → Pressure M
It will be Aircraft 1.
また、冷房＋給湯４転時の冷媒の流れは、圧縮機１→四
方弁Ｚ−給湯用熱交換器４−逆止弁９−受夜器１１→電
磁弁１８→膨張弁１４→逆止弁１６→ｇ！調用熱交換器
５→四方弁２→アキエムレータ１９−＋圧縮機ｌとなる
。In addition, the flow of refrigerant during cooling + hot water supply 4-turn is as follows: Compressor 1 -> Four-way valve Z - Hot water supply heat exchanger 4 - Check valve 9 - Night receiver 11 -> Solenoid valve 18 -> Expansion valve 14 -> Check valve 16 → g! Control heat exchanger 5 → four-way valve 2 → Akie emulator 19-+compressor 1.
このように、冷房、冷房及び給湯運転を必要とする外気
温度が高い状態でチラーユニットを停止させた場合、逆
止弁８，９．１０と４磁−Ｆｆ１１３゜２０により受液
器１１＠後の液配管部が液封となり、長時間停止させた
場合には、圧力のＡ常上昇によＱ受液器用安全９ｐＨの
作動、あるいは、配管等の４裂による冷媒洩ル等の事故
の危険性があつた。In this way, when the chiller unit is stopped in a state where the outside temperature is high and requires air conditioning, air conditioning, and hot water supply operation, the check valves 8, 9, and 10 and the 4-magnetic Ff113°20 prevent the liquid receiver 11 If the liquid piping becomes a liquid seal and is stopped for a long time, there is a risk of the Q liquid receiver safety 9 pH being activated due to a constant rise in pressure A, or accidents such as refrigerant leakage due to cracks in the piping, etc. The sex was hot.
本発明の目的は、液封による事故の防止をはかり、冷凍
サイクルの安全性の向上をはかる事にある。An object of the present invention is to prevent accidents caused by liquid sealing and to improve the safety of refrigeration cycles.
上記目的は、受ｇ滲出口液配ｆ部から、電磁弁、圧力調
整弁、逆止弁を介在した管路を空気１！ｌＩ熱交換器出
口部に接続することにより達成される。The above purpose is to connect air 1! to a pipe line with a solenoid valve, a pressure regulating valve, and a check valve interposed from the receiving g seepage liquid distribution part. This is achieved by connecting to the lI heat exchanger outlet.
１１ｔ４弁は、テラーユニブト停止時Ｖこ開となるよう
制御する。また、圧力調整弁は、一定圧力以上になった
４甘に開となるようにし、チラーユニット停止時、ｇ配
管部の圧力が異常Ｖこ上昇した場合に、電磁弁、圧力調
整弁、逆止弁により空気側熱交換器出口−に冷媒な放出
することにより達成される。The 11t4 valve is controlled to be V-open when the teller unit is stopped. In addition, the pressure regulating valve is set to open as soon as the pressure exceeds a certain level, and when the chiller unit is stopped and the pressure in the g piping increases abnormally, the solenoid valve, pressure regulating valve, check This is accomplished by discharging the refrigerant to the air side heat exchanger outlet through a valve.
〔作用〕 １［弁は、チラーユニット停止時に開となる。[Effect] 1 [The valve is opened when the chiller unit is stopped.
また、圧力、、４螢弁は、−・定圧力以上になった場合
間となるので、チラーユニット運転時は、１ｔｄｉ弁が
閉となっている丸め、冷媒が流れることはない。また、
逆止弁により、チラーユニット運転時でも停止時で本冷
媒が逆流することはない。In addition, the pressure of the four firefly valves becomes low when the pressure exceeds a constant pressure, so when the chiller unit is operating, the refrigerant does not flow unless the 1TDI valve is closed. Also,
The check valve prevents the refrigerant from flowing backwards even when the chiller unit is in operation or stopped.
以下、本発明の一実施例を第１図により説明すり〉１、
冷房運転時の冷媒の流れは、圧Ｉａ機１→四方弁２−＋
空気側熱交換器３→逆止弁８→受液器１１−電磁弁１８
→膨張弁１４−？逆止弁１６→空調用熱交換器５→四方
弁２→ア午ユムレータ１９→圧縮礪ｌに戻る。Hereinafter, one embodiment of the present invention will be explained with reference to FIG. 1. 1. The flow of refrigerant during cooling operation is as follows:
Air side heat exchanger 3 → check valve 8 → liquid receiver 11 - solenoid valve 18
→Expansion valve 14-? Check valve 16 → air conditioning heat exchanger 5 → four-way valve 2 → air humerator 19 → return to compression tank.
冷房＋給湯運転時の冷媒の流れは、圧縮機ｌ→四方弁２
→Ｉ＆湯用熱交換器４→逆止弁９→受液器１１→直磁弁
１３→彫張弁１４→逆止弁１６呻空＾用熱交換話５→四
方弁２−１−アキエムレータ１９→圧−機ｌの順に流通
する。The flow of refrigerant during cooling + hot water supply operation is from compressor 1 to four-way valve 2.
→ Heat exchanger for I & hot water 4 → Check valve 9 → Liquid receiver 11 → Direct magnetic valve 13 → Sculpture valve 14 → Check valve 16 Heat exchanger for air 5 → Four-way valve 2-1-Akiemulator 19 → It flows in the order of pressure - machine l.
冷房、冷房プ〉ス給湯運転時は、外′Ａ湿温度高い状態
で運転しており、この状態でチラーユニットを停止させ
ｆＦ、ｊａ合、電磁弁１３．２０は閉じており、逆止弁
８，９．１０と電磁弁１８．２０により受液器１１前後
のｔｉ、配管部が液封状１帳となる。チラーユニブトを
停止させ、長時間浄上させた場合、受液器１１内の冷媒
液が蒸発し、ガスとなＱ、受液器１１およびその前後の
配管部の圧力が上昇し、受液器用安全弁２１の作動、あ
るいは液配管のロー付部の亀裂等の危険があった。During cooling and hot water supply operation, the chiller unit is stopped and the solenoid valves 13 and 20 are closed and the check valve is closed. 8, 9.10 and the solenoid valve 18.20, the ti and piping section before and after the liquid receiver 11 form a single liquid seal. If the chiller unit is stopped and cleaned for a long time, the refrigerant liquid in the receiver 11 will evaporate and turn into gas, the pressure in the receiver 11 and the piping before and after it will increase, and the safety valve for the receiver will evaporate. There was a risk of the 21 operating or cracking of the brazed part of the liquid piping.
冷房、冷房グラス給湯運転の冷媒の流れは第２図の従来
例と同じであるが、受８！器１１の、出口配ｆ部に、％
磁弁２２、圧力調整弁２８、逆止弁２４を配置する。The flow of refrigerant during cooling and cooling glass hot water supply operation is the same as in the conventional example shown in Fig. At the outlet distribution part of the container 11, %
A magnetic valve 22, a pressure regulating valve 28, and a check valve 24 are arranged.
ｔ＋６弁２２は、チク−ユニットを停止させた場＠に開
とｌ々。また、圧力調整弁２８は、一定圧力以上になっ
た場合に開となる。The t+6 valve 22 opens when the chiku unit is stopped. Further, the pressure regulating valve 28 opens when the pressure exceeds a certain level.
従がって、外気温度が高い状態でチラーユニブトを停止
させた場合、受液器１１およびその前後の液配管部の圧
力が上昇した場合、冷媒は、電磁弁２２→圧力Ｓ整弁２
８→逆止弁２４を通り、空気側熱交換器８出口ｓＶｃ放
出される。Therefore, when the chiller unit is stopped while the outside temperature is high, and the pressure in the liquid receiver 11 and the liquid piping sections before and after it increases, the refrigerant is transferred from the solenoid valve 22 to the pressure S regulating valve 2.
8 → passes through the check valve 24 and is discharged to the air side heat exchanger 8 outlet sVc.
チラーユニット運転時は、電磁弁２２は閉となって分り
、また、逆止弁２４により、このバイパス管路を冷媒が
流れることはない。また、圧力調整弁２８により、受液
！１１および、前後の液配管部の圧力を一定圧力以下に
することができ、液配−Ｉｉ部が圧力低下することはな
い。また、受ｉ器１１内の冷媒液がなくなることがなく
、膨張弁１４がガス圧縮による故障等の心配がない。When the chiller unit is in operation, the solenoid valve 22 is closed, and the check valve 24 prevents refrigerant from flowing through this bypass pipe. In addition, the pressure regulating valve 28 allows liquid to be received! 11 and the pressure in the front and rear liquid piping sections can be kept below a certain pressure, and the pressure in the liquid distribution section Ii will not drop. Further, the refrigerant liquid in the receiver 11 will not run out, and there is no fear that the expansion valve 14 will malfunction due to gas compression.
本実施例によれば、受液器および前後の液配管が、液封
とならず、安全弁の作動、配管等の亀裂等の事故を防止
することができ、冷凍サイクルの安全性の向上をはかる
ことができる。According to this embodiment, the liquid receiver and the liquid piping before and after the liquid do not form a liquid seal, making it possible to prevent accidents such as activation of the safety valve and cracks in the piping, etc., thereby improving the safety of the refrigeration cycle. be able to.
本発明によれば、圧力上昇による安全弁の作動、配管の
４裂事故等を防止し、液封回路を防止することができる
ので、冷凍サイクルの安全性向上の効果がある。According to the present invention, it is possible to prevent the operation of the safety valve due to pressure increase, the piping tear accident, etc., and the liquid seal circuit can be prevented, so there is an effect of improving the safety of the refrigeration cycle.
第１図線本発明の一犬４例の冷凍サイクル図を示し、第
２図は従来の冷凍サイクル図である。
１・・・圧縮機 ２・・・四方弁 ８・・・空気側
熱交−換器
換器
４・・・給湯用熱交換器
１１・・・受液器
１４゜
５・・・仝制用熱交
１５・・・膨張弁
１９・・・アキュムレータ
２１・・・安全弁
・・・電磁弁
２８・・・圧力調整弁
２４・・・逆止弁
４鈴烏唱麩そ揄番
５ ダφ用４友＃セ番
す、１ ’１１石在奸
Ｂ、９．＋ｏ 差正身
＋４．Ｉｒ―帳神
ｌ６１７ 並止拝
８ 区＠オ（
９７もムし一タ
臣と１Fig. 1 shows a refrigeration cycle diagram of four examples of one dog according to the present invention, and Fig. 2 shows a conventional refrigeration cycle diagram. 1...Compressor 2...Four-way valve 8...Air side heat exchanger exchanger 4...Hot water supply heat exchanger 11...Liquid receiver 14° 5...For restriction Heat exchanger 15...Expansion valve 19...Accumulator 21...Safety valve...Solenoid valve 28...Pressure adjustment valve 24...Check valve 4 Suzu Usu Shou Fu Sono No. 5 4 for daφ Friend #Sebansu, 1 '11 Seki Zaijen B, 9. +o Seishin +4. Ir-Chogami l617 Namidokuhai 8 Ward @ O (97 Momushi Ichita Minister and 1
Claims (1)
、空調用熱交換器、受液器、減圧装置、アキュムレータ
から成る給湯器付空冷ヒートポンプ式冷凍装置において
、受液器出口液配管部より、電磁弁、圧力調整弁、逆止
弁を介し、空気側熱交換器出口部に接続される管路を設
けたことを特徴とする冷凍装置。1. In an air-cooled heat pump refrigeration system with a water heater consisting of a compressor, a four-way valve, an air side heat exchanger, a hot water supply heat exchanger, an air conditioning heat exchanger, a liquid receiver, a pressure reducing device, and an accumulator, the liquid receiver outlet A refrigeration system comprising a pipe line connected from a liquid pipe section to an air side heat exchanger outlet section via a solenoid valve, a pressure regulating valve, and a check valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3618589A JPH02217761A (en) | 1989-02-17 | 1989-02-17 | Air-cooled heat pump type refrigerator with hot water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3618589A JPH02217761A (en) | 1989-02-17 | 1989-02-17 | Air-cooled heat pump type refrigerator with hot water heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02217761A true JPH02217761A (en) | 1990-08-30 |
Family
ID=12462672
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3618589A Pending JPH02217761A (en) | 1989-02-17 | 1989-02-17 | Air-cooled heat pump type refrigerator with hot water heater |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02217761A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012163302A (en) * | 2011-02-09 | 2012-08-30 | Daikin Industries Ltd | Refrigeration apparatus |
| WO2021065113A1 (en) * | 2019-09-30 | 2021-04-08 | ダイキン工業株式会社 | Freezer and heat source unit |
| WO2021065114A1 (en) * | 2019-09-30 | 2021-04-08 | ダイキン工業株式会社 | Heat source unit and refrigeration device |
-
1989
- 1989-02-17 JP JP3618589A patent/JPH02217761A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012163302A (en) * | 2011-02-09 | 2012-08-30 | Daikin Industries Ltd | Refrigeration apparatus |
| WO2021065113A1 (en) * | 2019-09-30 | 2021-04-08 | ダイキン工業株式会社 | Freezer and heat source unit |
| JP2021055920A (en) * | 2019-09-30 | 2021-04-08 | ダイキン工業株式会社 | Refrigeration unit and heat source unit |
| WO2021065114A1 (en) * | 2019-09-30 | 2021-04-08 | ダイキン工業株式会社 | Heat source unit and refrigeration device |
| JP2021055918A (en) * | 2019-09-30 | 2021-04-08 | ダイキン工業株式会社 | Heat source unit and refrigeration unit |
| JP2021105511A (en) * | 2019-09-30 | 2021-07-26 | ダイキン工業株式会社 | Refrigerating device and heat source unit |
| CN114450542A (en) * | 2019-09-30 | 2022-05-06 | 大金工业株式会社 | Heat source unit and refrigerating device |
| CN114450542B (en) * | 2019-09-30 | 2023-01-17 | 大金工业株式会社 | Heat source unit and refrigerating device |
| US11573039B2 (en) | 2019-09-30 | 2023-02-07 | Daikin Industries, Ltd. | Heat source unit and refrigeration apparatus |
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