JPS6233809B2 - - Google Patents
Info
- Publication number
- JPS6233809B2 JPS6233809B2 JP12169982A JP12169982A JPS6233809B2 JP S6233809 B2 JPS6233809 B2 JP S6233809B2 JP 12169982 A JP12169982 A JP 12169982A JP 12169982 A JP12169982 A JP 12169982A JP S6233809 B2 JPS6233809 B2 JP S6233809B2
- Authority
- JP
- Japan
- Prior art keywords
- gas
- amount
- cable
- pressure
- filling
- 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
- 230000001186 cumulative effect Effects 0.000 claims description 2
- 239000007789 gas Substances 0.000 description 42
- 238000007789 sealing Methods 0.000 description 5
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- 238000007872 degassing Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Gas Or Oil Filled Cable Accessories (AREA)
- Measuring Volume Flow (AREA)
Description
【発明の詳細な説明】
本発明は通信ケーブルの、ガスによるシース状
態の検査におけるガス充填装置に係り、特にガス
の流量計測、制御をするガス充填装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a gas filling device for inspecting the sheath condition of a communication cable using gas, and more particularly to a gas filling device for measuring and controlling the flow rate of gas.
従来、通信ケーブルのシース状態の検査は、ケ
ーブルの巻始端を気密処理して、巻終端はガスバ
ルブ付の気密処理を行なつて、このガスバルブか
ら窒素ガスあるいは乾燥空気を所定の封入圧力
（例えば600±100ｇ／cm2）で充填し、その圧力の
経時変化をチエツクしてケーブル被覆にガスリー
クやピンホール等が無いことを確認しているのが
一般的である。 Conventionally, to inspect the sheath condition of a communication cable, the starting end of the cable is airtight, the end of the winding is airtight with a gas valve, and nitrogen gas or dry air is supplied from the gas valve to a predetermined sealed pressure (for example, 600 It is common practice to fill the cable with a pressure of ±100 g/cm 2 ) and check the change in pressure over time to confirm that there are no gas leaks or pinholes in the cable coating.
ケーブルへのガス充填方法としては、ケーブル
封入圧力に等しい充填圧力で充填する方法があ
り、これはケーブル内圧力が所定の封入圧力に達
する（安定化）まで長時間かかるため圧力計で封
入圧を確認するのは難かしく、補正時間もそれに
応じて必要となり非能率的であるという難点があ
る。また、封入圧力よりも高い充填圧力で、充填
圧力あるいは充填時間を一定にして圧力あるいは
時間を計測、制御する方法があり、これは全く同
じケーブルサイズ、対数、条長のケーブルであつ
ても端末の気密処理の具合でガスの流れ（ガス流
抵抗）が異なつたり、さらにケーブル長と充填圧
力或は充填時間との関係が複雑で、温度によるば
らつきもあるという難点がある。 One way to fill the cable with gas is to fill it with a filling pressure equal to the cable sealing pressure.This method takes a long time for the cable internal pressure to reach (stabilize) the predetermined sealing pressure, so it is necessary to measure the sealing pressure with a pressure gauge. It is difficult to confirm and requires a corresponding amount of correction time, which is inefficient. In addition, there is a method of measuring and controlling the pressure or time by keeping the filling pressure or filling time constant at a filling pressure higher than the sealing pressure. There are also disadvantages in that the gas flow (gas flow resistance) varies depending on the degree of airtightness, and the relationship between cable length and filling pressure or filling time is complex and varies depending on temperature.
本発明は上記難点に鑑みなされたもので、ケー
ブル内のガス容積つまりケーブルサイズ、対数毎
の単位長当りのケーブル内ガス容量から、充填さ
れる積算ガス流量を計測、制御して正確なガス封
入ができるようにしたガス充填装置を提供するこ
とを目的とする。 The present invention was created in view of the above-mentioned difficulties, and accurately fills gas by measuring and controlling the cumulative gas flow rate to be filled from the gas volume within the cable, that is, the cable size, and the gas volume within the cable per unit length for each logarithm. The purpose of the present invention is to provide a gas filling device that enables the following.
以下本発明の好ましい実施例を図面により説明
する。 Preferred embodiments of the present invention will be described below with reference to the drawings.
本発明は図面に示すように、ガス充填装置１は
カプラ２，２′を接続体としてガスボンベ３と複
数本のケーブル４との間に介在している。装置１
ではガス道Ａにレギユレータ５を挾んで前後に圧
力計６，７が設けられ、ガスメータ８、ニードル
バルブ９および電磁弁９′を介してカプラ２′に接
続されている。ガスメータ８からはガス供給量に
対する信号が積算計１０に送られ、積算計１０か
らはカウンタ１１および定量装置１２に夫々信号
が送られる。定量装置１２はスイツチボツクス１
３と積算計１０の信号により、電磁弁９′を開閉
させる作動装置１４を制御している。 In the present invention, as shown in the drawings, a gas filling device 1 is interposed between a gas cylinder 3 and a plurality of cables 4 using couplers 2 and 2' as connecting bodies. Device 1
Pressure gauges 6 and 7 are provided in the gas path A in front and behind the regulator 5, and are connected to the coupler 2' via a gas meter 8, a needle valve 9, and a solenoid valve 9'. The gas meter 8 sends a signal regarding the gas supply amount to the totalizer 10, and the totalizer 10 sends signals to a counter 11 and a metering device 12, respectively. The quantitative device 12 is a switchbox 1
3 and the signals from the totalizer 10 control an actuating device 14 that opens and closes the solenoid valve 9'.
以上のような構成によるガス充填装置１は、ガ
スボンベ３の減圧弁の２次側を調節して圧力計６
をP1Kg／cm2にし、さらにレギユレータ５を調節し
て圧力計７の読みP2がP1−P2２Kg／cm2となるよ
うにすると、ガスメータ８はP2Kg／cm2のガス供給
量を計測し、積算計１０に0.1毎にパルスを送
る。積算計１０はガスメータ８から送られたパル
スに応じてカウンタ１１の目盛を制御し、且つ定
量装置１２にその積算量の信号を送る。定量装置
１２ではケーブル４への全ガス供給量がスイツチ
ボツクス１３により設定できるようになつてお
り、つまりケーブルに充填すべきガス量をケーブ
ルサイズ、対数毎の単位長当りのケーブル内ガス
容量から、温度補正や封入圧力を鑑みて計算して
設定し、この設定量と積算計１０からの積算量を
比較して、これが一致したときに電磁弁９′を閉
じるように作動装置１４を制御してケーブル４へ
所定量のガスを充填するようになつている。 The gas filling device 1 configured as described above adjusts the secondary side of the pressure reducing valve of the gas cylinder 3 and adjusts the pressure gauge 6.
is set to P 1 Kg/cm 2 and further adjusts the regulator 5 so that the reading P 2 of the pressure gauge 7 becomes P 1 −P 2 2Kg/cm 2 .The gas meter 8 indicates that the gas is P 2 Kg/cm 2 . Measure the supply amount and send a pulse to the totalizer 10 every 0.1. The totalizer 10 controls the scale of the counter 11 according to the pulses sent from the gas meter 8, and also sends a signal of the integrated amount to the metering device 12. In the metering device 12, the total amount of gas supplied to the cable 4 can be set using a switch box 13. In other words, the amount of gas to be filled into the cable is determined based on the cable size and the gas capacity inside the cable per unit length for each logarithm. The actuating device 14 is controlled to close the solenoid valve 9' when the set amount is calculated and set in consideration of temperature correction and sealing pressure, and the set amount is compared with the integrated amount from the totalizer 10. The cable 4 is filled with a predetermined amount of gas.
このようにして、ガスが充填されたケーブル４
はバルブ（図示せず）が締められ、カプラ２′か
ら取り外されて圧力計（図示せず）が取り付けら
れる。そして、ケーブル４内のガス圧は暫く放置
の後に所定のガス圧に均一になり、この圧力を所
定時間毎にチエツクして、ケーブル被覆のガスリ
ークやピンホールの有無の確認を行なうものであ
る。 In this way, the cable 4 filled with gas
A valve (not shown) is tightened, the coupler 2' is removed and a pressure gauge (not shown) is installed. The gas pressure within the cable 4 becomes uniform to a predetermined gas pressure after being left for a while, and this pressure is checked at predetermined intervals to check for gas leaks or pinholes in the cable coating.
従つて、ガス充填を予め設定された量のガス
を、その流量を測定して行なつているため、封入
ガス圧の精度が向上し、且つ複数本のケーブルを
同時にガス充填、検査ができるようになる。 Therefore, gas filling is performed by measuring the flow rate of a preset amount of gas, which improves the accuracy of the filled gas pressure and makes it possible to gas fill and inspect multiple cables at the same time. become.
以上、実施例からも明らかなように本発明によ
れば、従来経験に頼つていたケーブルへの充填ガ
ス量の計装化が計られ誰にでも作業できるように
なり、且つ封入ガス圧の精度の向上によつて再充
填およびガス抜きの頻度が少なくなり作業時間が
短縮できるようになる。 As is clear from the above examples, according to the present invention, the amount of gas filled into the cable, which conventionally relied on experience, has been instrumented, allowing anyone to perform the work, and the pressure of the filled gas can be measured. Improved accuracy means less frequent refilling and degassing, which saves time.
図面は本発明のガス充填装置におけるシステム
図である。
２，２′……カプラ、４……ケーブル、８……
ガスメータ、１０……積算計、１２……定量装
置、１４……作動装置。
The drawing is a system diagram of the gas filling device of the present invention. 2, 2'...Coupler, 4...Cable, 8...
Gas meter, 10... totalizer, 12... quantitative device, 14... operating device.
Claims (1)
るガスの供給量を計測するガスメータと、前記ガ
ス供給量を積算する積算計と、該積算計のガス積
算量と予め定められた設定ガス量を比較する定量
装置と、該定量装置に制御され前記ガス積算量と
設定量とが一致したときに電磁弁を閉じる作動装
置とを備えてなることを特徴とするガス充填装
置。1. A gas meter that measures the amount of gas supplied from a cylinder to a cable via a solenoid valve, an integrated meter that integrates the amount of gas supplied, and a comparison between the integrated gas amount of the integrated meter and a predetermined set gas amount. 1. A gas filling device comprising: a metering device that controls the amount of gas; and an actuating device that is controlled by the metering device and closes a solenoid valve when the cumulative gas amount and the set amount match.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57121699A JPS5911711A (en) | 1982-07-12 | 1982-07-12 | Gas filler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57121699A JPS5911711A (en) | 1982-07-12 | 1982-07-12 | Gas filler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5911711A JPS5911711A (en) | 1984-01-21 |
| JPS6233809B2 true JPS6233809B2 (en) | 1987-07-23 |
Family
ID=14817688
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57121699A Granted JPS5911711A (en) | 1982-07-12 | 1982-07-12 | Gas filler |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5911711A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62184126A (en) * | 1986-02-04 | 1987-08-12 | 帝人株式会社 | Polyamide yarn having built-in antibacterial property applied thereto and its production |
| JP2004207052A (en) * | 2002-12-25 | 2004-07-22 | Yazaki Corp | Method and apparatus for supplying fuel gas to fuel cell system |
-
1982
- 1982-07-12 JP JP57121699A patent/JPS5911711A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5911711A (en) | 1984-01-21 |
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