JPS60125553U - Gas piping leak detection device - Google Patents

Gas piping leak detection device

Info

Publication number
JPS60125553U
JPS60125553U JP1168584U JP1168584U JPS60125553U JP S60125553 U JPS60125553 U JP S60125553U JP 1168584 U JP1168584 U JP 1168584U JP 1168584 U JP1168584 U JP 1168584U JP S60125553 U JPS60125553 U JP S60125553U
Authority
JP
Japan
Prior art keywords
detection device
leak detection
gas piping
thermistors
piping leak
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
JP1168584U
Other languages
Japanese (ja)
Inventor
朝来野　邦弘
黒田　直之
Original Assignee
日本ドライケミカル株式会社
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 日本ドライケミカル株式会社 filed Critical 日本ドライケミカル株式会社
Priority to JP1168584U priority Critical patent/JPS60125553U/en
Publication of JPS60125553U publication Critical patent/JPS60125553U/en
Pending legal-status Critical Current

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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

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本考案に係る実施例の概略図である。 第２図は概略配線図。第３図は他の実施例を示す概略図
である。 １ａ・・・・・・基準用サーミスタ、１ｂ・・曲測定用
サーミスタ、２・・・・・・配管、３・・・・・・装置
、４・・・・・・比較回路。FIG. 1 is a schematic diagram of an embodiment of the present invention. Figure 2 is a schematic wiring diagram. FIG. 3 is a schematic diagram showing another embodiment. 1a...Reference thermistor, 1b...Thermistor for curve measurement, 2...Piping, 3...Device, 4...Comparison circuit.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] ２つのサーミスタを直列に接続した検出部と、基準回路
と、これらの回路からの出力を比較演算する比較演算回
路とを有し、検出部のサーミスタの少くとも一方を配管
内に設けて、配管内の気流による２つのサーミスタの温
度差の時間的変化を測定し、漏れを検出する配管の漏れ
検出装置。It has a detection section in which two thermistors are connected in series, a reference circuit, and a comparison calculation circuit that compares and calculates the outputs from these circuits, and at least one of the thermistors in the detection section is installed inside the piping. A pipe leak detection device that detects leaks by measuring temporal changes in the temperature difference between two thermistors due to airflow inside the pipe.
JP1168584U 1984-02-01 1984-02-01 Gas piping leak detection device Pending JPS60125553U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1168584U JPS60125553U (en) 1984-02-01 1984-02-01 Gas piping leak detection device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1168584U JPS60125553U (en) 1984-02-01 1984-02-01 Gas piping leak detection device

Publications (1)

Publication Number Publication Date
JPS60125553U true JPS60125553U (en) 1985-08-23

Family

ID=30494033

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1168584U Pending JPS60125553U (en) 1984-02-01 1984-02-01 Gas piping leak detection device

Country Status (1)

Country Link
JP (1) JPS60125553U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04301732A (en) * 1991-03-29 1992-10-26 Tatsuta Electric Wire & Cable Co Ltd Leakage detection device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4933672A (en) * 1972-07-25 1974-03-28
JPS5086366A (en) * 1973-11-29 1975-07-11
JPS50123462A (en) * 1974-03-15 1975-09-27

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4933672A (en) * 1972-07-25 1974-03-28
JPS5086366A (en) * 1973-11-29 1975-07-11
JPS50123462A (en) * 1974-03-15 1975-09-27

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04301732A (en) * 1991-03-29 1992-10-26 Tatsuta Electric Wire & Cable Co Ltd Leakage detection device

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