JPS60134166A - Refrigerator - Google Patents
RefrigeratorInfo
- Publication number
- JPS60134166A JPS60134166A JP24190383A JP24190383A JPS60134166A JP S60134166 A JPS60134166 A JP S60134166A JP 24190383 A JP24190383 A JP 24190383A JP 24190383 A JP24190383 A JP 24190383A JP S60134166 A JPS60134166 A JP S60134166A
- Authority
- JP
- Japan
- Prior art keywords
- economizer
- screw compressor
- cycle
- port
- connecting pipe
- 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
Landscapes
- Devices That Are Associated With Refrigeration Equipment (AREA)
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】
〔発明の利用分野〕
本発明は冷凍装置に係り、詳しくは圧縮機としてスクリ
ュー圧縮機を使用すると共に、エコノマイザサイクルを
構成した冷凍装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a refrigeration system, and more particularly to a refrigeration system that uses a screw compressor as a compressor and has an economizer cycle.
この種、従来の冷凍装置においては、エコノマイザサイ
クルのエコノマイザとスクリュー圧縮機の中間圧縮部と
を配管のみで接続した構成となっているので、スクリュ
ー圧縮機内で圧力変動が発生した場合、スクリュー圧縮
機とエコノマイザとの接続配管およびエコノマイザは前
記圧力変動の影響により圧縮、膨張のくり返し応力を受
けることになる。接続配管については、その肉厚を厚く
するか、材質を変更すれば圧力変動による問題を一解決
できるが、しかしエコノマイザ内のコルゲートサーモフ
ィンは材質変更できないので、圧力変動の影響を接続配
管の途中、しかもスクリュー圧縮機近傍でなくす必要が
ある。In this type of conventional refrigeration equipment, the economizer of the economizer cycle and the intermediate compression section of the screw compressor are connected only by piping, so if pressure fluctuations occur in the screw compressor, the screw compressor The connecting piping between and the economizer and the economizer are subjected to repeated compression and expansion stress due to the influence of the pressure fluctuation. As for the connection piping, problems caused by pressure fluctuations can be solved by increasing the wall thickness or changing the material.However, since the material of the corrugated thermofin in the economizer cannot be changed, the effect of pressure fluctuations can be resolved in the middle of the connection piping. Moreover, it is necessary to eliminate it near the screw compressor.
本発明の目的は、スクリュー圧縮機内で発生する圧力変
動をスクリュー圧縮機近傍で遮断して、エコノマイザは
勿論のこと接続配管の大部分が圧力変動の影響を受けな
いで済む冷凍装置を提供することにある。An object of the present invention is to provide a refrigeration system in which pressure fluctuations occurring within a screw compressor are blocked near the screw compressor, so that not only the economizer but also most of the connecting pipes are not affected by pressure fluctuations. It is in.
この目的を達成するために、本発明の冷凍装置は、スク
リュー圧縮機とエコノマイザとの接続配管のスゲリュー
Ｅａ機近傍に逆止弁を設けたことを特徴とする。In order to achieve this object, the refrigeration system of the present invention is characterized in that a check valve is provided in the vicinity of the Sugeryu Ea machine in the connecting pipe between the screw compressor and the economizer.
以下、本発明の実施例を図面に従って説明する。図は本
発明による冷凍装置の冷凍サイクル系統図を示し、圧縮
途中にポート２を有するスクリュー圧縮機１、逆止弁３
、コンデンサ４、エコノマイザ５、′電磁弁６、膨張弁
７、クーラ８を配管接続して主サイクルを構成している
。またコンデンサ４の出口側に配管接続した電磁弁９、
キャピラリー１０．エコノマイザ５、該エコノマイザ５
の出口側とズクリュニ圧縮機１の前記ポート２とを、
ヅ′
接続する接続配管１１によりエコノマイザサイクルを構
成している。そして、前記接続配管１１のスクリュー圧
縮機１近傍に逆止弁１２τ設けている。Embodiments of the present invention will be described below with reference to the drawings. The figure shows a refrigeration cycle system diagram of a refrigeration system according to the present invention, including a screw compressor 1 having a port 2 in the middle of compression, and a check valve 3.
, a condenser 4, an economizer 5, a solenoid valve 6, an expansion valve 7, and a cooler 8 are connected via piping to form a main cycle. In addition, a solenoid valve 9 connected to the outlet side of the condenser 4 via piping,
Capillary 10. economizer 5, said economizer 5
and the port 2 of the Zucruny compressor 1,
ㅅ' The connecting pipe 11 constitutes an economizer cycle. A check valve 12τ is provided in the connection pipe 11 near the screw compressor 1.
次に本発明の作用について説明する。Next, the operation of the present invention will be explained.
主サイクルの冷媒の流れを実線の矢印で、エコノマイザ
サイクルの冷媒の流れを破線の矢印でそれぞれ示してい
る。まず、主サイクルに２いては、スクリュー圧縮機１
より吐出されたガス冷媒が逆止弁３を経てコンデンサ４
に流人し、ここで凝縮液化され、その液冷媒はエコノマ
イザ５を流通する過程で該エコノマイザ５を流れるエコ
ノマイザサイクルの冷媒により過冷却される。過冷却さ
れた液冷媒は電磁弁６を経て膨張弁７で減圧されクーラ
８内で媒体（全紙、水等）で熱交換してガス化し、′予
りリユー圧縮機１に戻る。The flow of refrigerant in the main cycle is shown by solid arrows, and the flow of refrigerant in the economizer cycle is shown by dashed arrows. First, in main cycle 2, screw compressor 1
The gas refrigerant discharged from the tank passes through the check valve 3 and enters the condenser 4.
The liquid refrigerant is condensed and liquefied there, and in the process of flowing through the economizer 5, the liquid refrigerant is supercooled by the refrigerant of the economizer cycle flowing through the economizer 5. The supercooled liquid refrigerant passes through a solenoid valve 6, is depressurized by an expansion valve 7, and is gasified by heat exchange with a medium (whole paper, water, etc.) in a cooler 8, and then returns to the ReU compressor 1.
また、エコノマイザサイクルにおいては、コンデンサ４
からの高温高圧の液冷媒が電磁弁９を経てキャピラリー
１０で中間圧力まで減圧されて中間温度まで低下し、エ
コノマイザ５を流通する過程で主サイクルの高嵩高圧の
液冷媒と熱交換してガス化する。そのガス冷媒は接続配
管１１、逆止弁１２を通ってスクリュー圧縮機１のポー
ト２より中間圧縮部に吸入される。Also, in the economizer cycle, capacitor 4
The high-temperature, high-pressure liquid refrigerant passes through the electromagnetic valve 9, is depressurized to an intermediate pressure in the capillary 10, and is lowered to an intermediate temperature.In the process of flowing through the economizer 5, it exchanges heat with the high-volume, high-pressure liquid refrigerant in the main cycle, and becomes gas. become The gas refrigerant passes through the connecting pipe 11 and the check valve 12 and is sucked into the intermediate compression section from the port 2 of the screw compressor 1.
この冷凍装置において、スクリュー圧縮機１内で圧力変
動が発生した場合、該スクリュー圧縮機１のポート２は
圧力変動を受けることになる。そして、ポート２部のモ
カが圧力変動によってキャピラリー１０で減圧された冷
媒の中間圧力よりも高くな−った場合には、前記ポート
２部からガス冷媒が接続配管１１へ逆流することになる
。しかし接続配管１１のスクリュー圧縮機近傍に介在す
る逆止弁１２によってガス冷媒の逆流が阻止される、即
ち逆止弁１２からエコノマイザ５までの接続配管１１お
よびエコノマイザ５は前記圧力変動の影響を受けること
がない。In this refrigeration system, if a pressure fluctuation occurs within the screw compressor 1, the port 2 of the screw compressor 1 will experience the pressure fluctuation. If the pressure in the port 2 section becomes higher than the intermediate pressure of the refrigerant depressurized in the capillary 10 due to pressure fluctuations, the gas refrigerant will flow back from the port 2 section to the connecting pipe 11. However, the backflow of the gas refrigerant is prevented by the check valve 12 interposed in the connecting pipe 11 near the screw compressor, that is, the connecting pipe 11 and the economizer 5 from the check valve 12 to the economizer 5 are affected by the pressure fluctuations. Never.
以上説明したように、本発明によれば、スクリュー圧縮
機内で発生する圧力変動をスクリュー圧縮機近傍で遮断
するようにしたから、エコノマイザは勿論のこと接続配
管の大部分に圧力変動の影響を与えないで済む。As explained above, according to the present invention, the pressure fluctuations occurring within the screw compressor are blocked near the screw compressor, so that the pressure fluctuations do not affect not only the economizer but also most of the connecting piping. You don't have to.
図面は本発明の冷凍装置の冷凍サイクル系統図を示す。
１・・・スクリュー圧縮機 ２・・・ポート ４・・・
コンデンサ ５・・・エコノマイザ ７・・・膨張弁
８・−・クーラ １０・・−キャピラリー １１・・・
接続配管 １２・・・逆止弁。The drawing shows a refrigeration cycle system diagram of the refrigeration apparatus of the present invention. 1...Screw compressor 2...Port 4...
Capacitor 5... Economizer 7... Expansion valve
8...Cooler 10...-Capillary 11...
Connection piping 12...Check valve.
Claims (1)
サ、エコノマイザ、膨張弁、クーラ等により主サイクル
を構成し、前記コンデンサの出口側に配官接続されるキ
ャピラリー、前記エコノマイザ、該エコノマイザとスク
リュー圧縮機の前記ポートとを接続する接続配管により
エコノマイザサイクルを構成している冷凍装置であって
、前記接続配管のスクリュー圧縮機近傍に逆止弁を設け
たことを特徴とする冷凍装置。The main cycle is composed of a screw compressor having a port in the middle of compression, a condenser, an economizer, an expansion valve, a cooler, etc., a capillary arranged and connected to the outlet side of the condenser, the economizer, and the components of the economizer and the screw compressor. 1. A refrigeration system in which an economizer cycle is configured by a connecting pipe that connects a port, the refrigeration system being characterized in that a check valve is provided in the vicinity of a screw compressor in the connecting pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24190383A JPS60134166A (en) | 1983-12-23 | 1983-12-23 | Refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24190383A JPS60134166A (en) | 1983-12-23 | 1983-12-23 | Refrigerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60134166A true JPS60134166A (en) | 1985-07-17 |
Family
ID=17081265
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24190383A Pending JPS60134166A (en) | 1983-12-23 | 1983-12-23 | Refrigerator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60134166A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5148296A (en) * | 1987-12-25 | 1992-09-15 | Fuji Xerox Co., Ltd. | Original document reading apparatus |
-
1983
- 1983-12-23 JP JP24190383A patent/JPS60134166A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5148296A (en) * | 1987-12-25 | 1992-09-15 | Fuji Xerox Co., Ltd. | Original document reading apparatus |
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