JPH0224456B2 - - Google Patents
Info
- Publication number
- JPH0224456B2 JPH0224456B2 JP10446083A JP10446083A JPH0224456B2 JP H0224456 B2 JPH0224456 B2 JP H0224456B2 JP 10446083 A JP10446083 A JP 10446083A JP 10446083 A JP10446083 A JP 10446083A JP H0224456 B2 JPH0224456 B2 JP H0224456B2
- Authority
- JP
- Japan
- Prior art keywords
- gas
- safety valve
- purger
- discharge pipe
- oil tank
- 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.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
- G01M3/06—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by observing bubbles in a liquid pool
- G01M3/08—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by observing bubbles in a liquid pool for pipes, cables or tubes; for pipe joints or seals; for valves; for welds
- G01M3/086—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by observing bubbles in a liquid pool for pipes, cables or tubes; for pipe joints or seals; for valves; for welds for valves
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Examining Or Testing Airtightness (AREA)
Description
【発明の詳細な説明】
本発明は安全弁の作動をガスパージヤーの油槽
中の泡として検知し、併せて放出管から安全弁出
口側への水分の浸入を盲パツキンにより防ぎ、フ
ロン系冷媒使用の場合等に安全弁本体の腐食を防
止することのできる安全弁の漏洩検知方法並びに
その装置に係るものである。Detailed Description of the Invention The present invention detects the operation of the safety valve as bubbles in the oil tank of the gas purifier, and also prevents moisture from entering from the discharge pipe to the safety valve outlet side using a blind packing. The present invention relates to a safety valve leak detection method and device that can prevent corrosion of the safety valve body.
一般に冷凍装置においては、冷凍圧力容器、熱
交換器等に高圧の冷媒ガス、蒸気が異常に溜ると
器内圧力が著しく上昇し、過剰エネルギーによる
各種トラブルを誘発するため、該トラブルを防止
するための保護装置として安全弁が広く利用され
ている。 In general, in refrigeration equipment, if high-pressure refrigerant gas or steam accumulates abnormally in the refrigeration pressure vessel, heat exchanger, etc., the internal pressure will rise significantly, causing various troubles due to excess energy. Safety valves are widely used as protection devices.
従来、安全弁は該弁が作動したときの噴出ガス
を安全弁出口側に接続した放出管によつて外部の
大気中に導き放出しているが、該放出管が長いと
冷媒ガス漏洩の検知が困難であるばかりでなく、
安全弁のばねの疲労や弁座面への塵埃の噛み込み
等による冷媒ガスの少量の連続的な漏洩は検知す
る術はなく、気付かない内に冷凍能力が低下する
等の大事に到る惧れがあつた。またフロン系冷媒
使用の場には、放出管の湿度変化による呼吸作用
のため放出管より安全弁出口側に水分が浸入して
水分の残溜を生じ、フロン系冷媒が漏洩した場合
に該冷媒が加水分解を起こし、酸性溶液となり、
安全弁の弁体及び弁座等を腐食させるという大な
る欠点を存するものである。 Conventionally, safety valves guide and release the ejected gas when the valve is activated into the outside atmosphere through a discharge pipe connected to the safety valve outlet side, but if the discharge pipe is long, it is difficult to detect refrigerant gas leaks. Not only is it
There is no way to detect continuous leakage of a small amount of refrigerant gas due to fatigue of the safety valve spring or dust getting caught in the valve seat surface, and there is a risk that the refrigerating capacity may decrease without you noticing. It was hot. In addition, in places where fluorocarbon-based refrigerants are used, moisture infiltrates from the release pipe to the safety valve outlet side due to the breathing effect due to humidity changes in the discharge pipe, resulting in residual moisture.If the fluorocarbon-based refrigerant leaks, the refrigerant Hydrolysis occurs and becomes an acidic solution,
This has a major drawback in that it corrodes the valve body, valve seat, etc. of the safety valve.
然るに本発明においては、安全弁の出口側に放
出管とガスパージヤー及びガスパージヤー用油槽
とを並列に接続し、該放出管に安全弁よりの噴出
ガスが所定の圧力に達すると破裂するような盲パ
ツキンを設けたから、安全弁が作動してガスが噴
出すると、該ガスはストツプ弁を介してガスパー
ジヤー用油槽に入り、該油槽中の泡として素早く
安全弁よりの漏洩を検知することができ、該ガス
圧が所定の圧力に達すると盲パツキンが破裂し、
該噴出ガスを放出管から外部の大気中に放出する
ことができるものである。また本発明において
は、安全弁のばねの疲労や弁座面への塵埃の噛み
込み等による冷媒ガスの少量の連続的な漏洩も盲
パツキンにより直接放出管より外部の大気中にそ
のまゝ放出せず、ガスパージヤー用油槽に導入す
るから、容易に泡として検知可能である。しかも
放出管より安全弁出口側への大気中の水分の浸入
は盲パツキンにより防止されるから、安全弁出口
側に水分が残溜せず、安全弁よりのフロン系冷媒
の漏洩があつても弁本体の腐食を未然に防止し得
るものである。 However, in the present invention, a discharge pipe, a gas purger, and an oil tank for the gas purger are connected in parallel to the outlet side of the safety valve, and a blind packing is installed in the discharge pipe that ruptures when the gas ejected from the safety valve reaches a predetermined pressure. Therefore, when the safety valve is activated and gas is ejected, the gas enters the oil tank for the gas purger through the stop valve, and leakage from the safety valve can be quickly detected as bubbles in the oil tank. When reaches a predetermined pressure, the blind seal ruptures,
The ejected gas can be discharged into the outside atmosphere from a discharge pipe. Furthermore, in the present invention, even if a small amount of continuous leakage of refrigerant gas occurs due to fatigue of the safety valve spring or dust getting caught in the valve seat surface, the blind gasket prevents the gas from being directly released into the outside atmosphere from the discharge pipe. First, since it is introduced into the gas purger oil tank, it can be easily detected as bubbles. In addition, the blind packing prevents atmospheric moisture from entering from the discharge pipe to the safety valve outlet side, so no moisture remains on the safety valve outlet side, and even if fluorocarbon refrigerant leaks from the safety valve, the valve body This can prevent corrosion.
今、ここに本発明実施の一例を示す添付図面に
ついて詳説する。 Reference will now be made in detail to the accompanying drawings that illustrate one example of the implementation of the invention.
１は安全弁で、冷媒装置の冷凍圧力容器、熱交
換器等（図示せず）に安全弁元弁２を介して接続
したものである。３は放出管で、安全弁１の出口
側に接続し、安全弁１が作動したとき噴出した冷
媒ガスを屋外又は船外等に導き放出するものであ
る。４，４は一対のフランジで、該放出管３の中
間部に設備し、５は盲パツキンで該一対のフラン
ジ４，４間に介在し、1.5mm厚さの天然ゴム製と
し、実測で4.8〜5.0Kg／cm2の圧力で破裂するもの
である。６は配管で、安全弁１の出口側と該フラ
ンジ４，４との間の放出管３より分岐したもの
で、中間部にストツプ弁７を介在したものであ
る。８はガスパージヤー、９はガスパージヤー用
油槽で、一端をガスパージヤー８の冷媒ガス入口
兼エアー放出口１０にストツプ弁１１を介して接
続し、他端をガスパージヤー用油槽９の油中に開
口した配管１２により夫々を連結したもので、配
管６で安全弁１の出口側とガスパージヤー８及び
ガスパージヤー用油槽とを並列に接続するもので
ある。１３は排出管で、ガスパージヤー用油槽９
で泡として放出される冷媒ガスを排出する。 Reference numeral 1 denotes a safety valve, which is connected to a freezing pressure vessel, a heat exchanger, etc. (not shown) of a refrigerant system via a safety valve main valve 2. Reference numeral 3 denotes a discharge pipe, which is connected to the outlet side of the safety valve 1 and guides and discharges the refrigerant gas spouted out when the safety valve 1 is activated outdoors or overboard. 4 and 4 are a pair of flanges installed in the middle of the discharge pipe 3, and 5 is a blind packing interposed between the pair of flanges 4 and 4, which is made of natural rubber with a thickness of 1.5 mm, and is actually 4.8 mm thick. It ruptures at a pressure of ~5.0Kg/ cm2 . A piping 6 branches from the discharge pipe 3 between the outlet side of the safety valve 1 and the flanges 4, and has a stop valve 7 interposed in the middle. 8 is a gas purger, and 9 is an oil tank for the gas purger, one end of which is connected to the refrigerant gas inlet/air discharge port 10 of the gas purger 8 via a stop valve 11, and the other end opened into the oil of the oil tank 9 for the gas purger. The piping 6 connects the outlet side of the safety valve 1, the gas purger 8, and the oil tank for the gas purger in parallel. 13 is a discharge pipe, and oil tank 9 for gas purger
The refrigerant gas is released as bubbles.
本発明は以上の如き構成で、これを使用するに
当つては、異常高圧で安全弁が作動した場合に、
放出管３より冷媒ガスが外部の大気中に放出し易
くするために、またガスパージヤー用油槽９を保
護するために、更には前記排出管１３より機関室
に大量の冷媒が放出されないようにするためにス
トツプ弁７を極く僅かだけ開けて使用する。それ
にガスパージヤー８からガスパージヤー用油槽９
への配管１２はガスパージヤー８のエアー放出ラ
インと共用しているため、ガスパージヤー８の作
動時の泡が空気か、冷媒ガスかの区別ができない
ため、ガスパージヤー８のガス入口兼エアー放出
口１０をストツプ弁１１で閉めてガスパージヤー
８とガスパージヤー用油槽との同時使用を避ける
ものである。 The present invention has the above-described configuration, and when using the present invention, when the safety valve is activated due to abnormally high pressure,
In order to facilitate the release of refrigerant gas into the outside atmosphere from the discharge pipe 3, to protect the gas purger oil tank 9, and to prevent a large amount of refrigerant from being released into the engine room from the discharge pipe 13. Therefore, the stop valve 7 should be opened only slightly. In addition, from the gas purger 8 to the oil tank 9 for the gas purger
Since the piping 12 to the gas purifier 8 is shared with the air discharge line of the gas purger 8, it is not possible to distinguish whether the bubbles generated when the gas purger 8 is activated are air or refrigerant gas. 10 is closed with a stop valve 11 to avoid simultaneous use of the gas purger 8 and the oil tank for the gas purger.
添付図面は本発明実施の一例を示すもので、そ
の概略配管図を示す。
１……安全弁、２……安全弁元弁、３……放出
管、４……フランジ、５……盲パツキン、６……
配管、７……ストツプ弁、８……ガスパージヤ
ー、９……ガスパージヤー用油槽、１０……ガス
入口兼エアー放出口、１１……ストツプ弁、１２
……配管、１３……排出管。
The accompanying drawings show an example of the implementation of the present invention, and show a schematic piping diagram thereof. 1...Safety valve, 2...Safety valve main valve, 3...Discharge pipe, 4...Flange, 5...Blind packing, 6...
Piping, 7...Stop valve, 8...Gas purger, 9...Oil tank for gas purger, 10...Gas inlet/air discharge port, 11...Stop valve, 12
...Piping, 13...Discharge pipe.
Claims (1)
設した所定の圧力で破裂する盲パツキンによりス
トツプ弁を介在した配管を通してガスパージヤー
のストツプ弁を付設したガス入口兼エアー放出口
とガスパージヤーの油槽との中に導入し、該ガス
入口兼エアー放出口をストツプ弁で閉塞し、油槽
中に泡として検知することを特徴とする安全弁の
漏洩検知方法。 ２ 安全弁の出口側を分岐し、一方にストツプ弁
を介してストツプ弁を付設したガスパージヤーの
ガス入口兼エアー放出口及びガスパージヤー用油
槽を並列に配管で接続し、他方に外部への放出管
を接続し、該放出管の中間に一対のフランジを設
備し、該フランジ間に所定の圧力で破裂する盲パ
ツキンを介在させることを特徴とする安全弁の漏
洩検知装置。[Scope of Claims] 1. Gas leakage from the safety valve outlet side is prevented by a blind gasket attached to the discharge pipe that ruptures at a predetermined pressure, through a pipe with a stop valve interposed between the gas inlet and air outlet equipped with a stop valve of the gas purger. 1. A method for detecting leakage in a safety valve, characterized by introducing the gas into an outlet and an oil tank of a gas purger, closing the gas inlet/air discharge port with a stop valve, and detecting bubbles in the oil tank. 2 The outlet side of the safety valve is branched, and the gas inlet and air discharge port of the gas purger equipped with a stop valve and the oil tank for the gas purger are connected in parallel via a stop valve on one side, and a discharge pipe to the outside is connected on the other side. A leakage detection device for a safety valve, characterized in that a pair of flanges is installed in the middle of the discharge pipe, and a blind packing that ruptures at a predetermined pressure is interposed between the flanges.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10446083A JPS59228142A (en) | 1983-06-10 | 1983-06-10 | Method and device for detecting leakage of safety valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10446083A JPS59228142A (en) | 1983-06-10 | 1983-06-10 | Method and device for detecting leakage of safety valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59228142A JPS59228142A (en) | 1984-12-21 |
| JPH0224456B2 true JPH0224456B2 (en) | 1990-05-29 |
Family
ID=14381203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10446083A Granted JPS59228142A (en) | 1983-06-10 | 1983-06-10 | Method and device for detecting leakage of safety valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59228142A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107462373A (en) * | 2017-09-19 | 2017-12-12 | 合肥通用机械研究院 | A kind of valve leak rate automatic testing equipment based on bubble method |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6035700A (en) * | 1997-10-10 | 2000-03-14 | Apv Corporation | Method of leak testing an assembled plate type heat exchanger |
| KR100524601B1 (en) * | 2000-12-02 | 2005-11-01 | 주식회사 포스코 | Leak Detecting Apparatus of a Shutoff Valve |
| KR20030062188A (en) * | 2002-01-16 | 2003-07-23 | 홍성식 | GAS leak checker |
| CN104880281B (en) * | 2014-02-28 | 2019-10-29 | 北京谊安医疗系统股份有限公司 | Outer airtight test device |
| CN104880284B (en) * | 2014-02-28 | 2019-10-29 | 北京谊安医疗系统股份有限公司 | Interior airtight test device |
| CN106404303A (en) * | 2016-11-07 | 2017-02-15 | 捷开通讯(深圳)有限公司 | Horn airtightness detector |
| CN111855191B (en) * | 2020-06-08 | 2022-05-31 | 合肥通用机械研究院有限公司 | A low temperature safety valve performance test system and test method |
-
1983
- 1983-06-10 JP JP10446083A patent/JPS59228142A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107462373A (en) * | 2017-09-19 | 2017-12-12 | 合肥通用机械研究院 | A kind of valve leak rate automatic testing equipment based on bubble method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59228142A (en) | 1984-12-21 |
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