CN103364149A - Testing device and testing method for water tightness of cable - Google Patents
Testing device and testing method for water tightness of cable Download PDFInfo
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- CN103364149A CN103364149A CN2013103272395A CN201310327239A CN103364149A CN 103364149 A CN103364149 A CN 103364149A CN 2013103272395 A CN2013103272395 A CN 2013103272395A CN 201310327239 A CN201310327239 A CN 201310327239A CN 103364149 A CN103364149 A CN 103364149A
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Abstract
The invention relates to a testing device and a testing method for the water tightness of a cable. The testing device is characterized in that a pressure gauge, a pressure release valve, a water source interface and a pressurizing interface are respectively arranged on a pipe body of a pressure chamber, the two ends of the pipe body of the pressure chamber are respectively provided with a flange in a fixed mode, a fastening nut with a line passing hole or a fastening nut without the line passing hole is screwed at each of the two ends of the pressure chamber through O-ring seals, a measuring cylinder is arranged below the fastening nut with the line passing hole, and a pressuring device is connected with the pressurizing interface. The testing method comprises the following steps of: inserting the manufactured cable into the pressure chamber, sealing the two ends of the pressure chamber by the fastening nuts through the O-ring seals, and placing two ends or one end of the cable extending out of the fastening nuts with the line passing hole in the measuring cylinder; filling the pressure chamber with water; pressuring the pressure chamber; and after ending the test, checking whether water leaks at the two ends of the cable, or measuring the volume of leaking water in the measuring cylinder. The testing device and the testing method can be used for really simulating the high-pressure state under water and effectively detecting the water tightness of the cable and have the characteristics of good repeatability, small errors and the like.
Description
Technical field
The present invention relates to a kind of cable test device and method of testing, be particularly related to a kind of cable watertightness test device and method of testing, watertightness test device and method of testing, the watertightness that is mainly used in extra large cable and underwater cable detects, can by different modes of emplacement detection streamers laterally, direction waterproof, the block water cable watertightness performance of packing material of test different structure, difference that can be authentic and valid, the data of test have preferably repeatability, have reduced to greatest extent test error.
Background technology
Sea cable and underwater cable are waterborne, the nervous centralis of naval vessel electric power and communication system under water, undertaking the transmission of electric power supply and photosignal, the reliability of cable is directly connected to the normal operation of whole naval vessel electric power and communication system, so the reliability of cable, security are particularly important.On detection means, be the requirement of watertightness with the difference of other cable maximums, watertightness is one of extra large cable and underwater cable important performance, domestic light water tightness test device is applicable to complete machine or instrument and equipment, can't detect cable, for this reason my company's designed, designed, grind and made a cover device for detecting water tightness, provide a kind of detection means for the reliability of cable detects.
Summary of the invention
In view of the situation that prior art exists, the invention provides really high pressure conditions under the Simulated Water, effective detection streamer watertightness performance has a kind of cable watertightness test device and the method for testing of the characteristics such as good reproducibility, error are little.
The present invention for achieving the above object, the scheme of taking is: a kind of cable watertightness test device, it is characterized in that: comprise clamp nut, O-ring seal, flange, tensimeter, pressure chamber, blowdown valve, water source interface, suppress equipment, suppress interface, graduated cylinder, described pressure chamber is tubular body, body at pressure chamber is respectively equipped with tensimeter, blowdown valve, water source interface, suppress interface, on the two ends of pressure chamber body, fix respectively a flange, be spirally connected with the described clamp nut of cable-through hole or without the described clamp nut of the cable-through hole flange by O-ring seal and pressure chamber one end, be spirally connected with the described clamp nut of cable-through hole or without the described clamp nut of the cable-through hole flange by O-ring seal and the pressure chamber other end, below with the clamp nut of cable-through hole, be provided with graduated cylinder, described suppress equipment by sebific duct with suppress interface and be connected.
A kind of cable watertightness test method, it is characterized in that: step is as follows,
A, the horizontal watertightness test of cable:
The first step, sample preparation: get the finished cable of suitable length, if pressure chamber length is L, cable length is answered 〉=L+1m, so that the detection of leaking after the placement of cable and the off-test is generally 8～10 meters, the cable two ends are suitably processed making the termination smooth, the detection of being convenient to leak;
Second step, the cable for preparing is inserted in the pressure chamber, the flange that is fixed on the pressure chamber two ends and O-ring seal are passed respectively and with the clamp nut of cable-through hole in the two ends of cable, locking is sealed at both ends with pressure chamber by O-ring seal with the clamp nut of cable-through hole, and the two ends of stretching out with the outer cable of the clamp nut of cable-through hole place respectively in the graduated cylinder;
The 3rd step, open the running water pipe switch, will fill with water in the pressure chamber by water source interface;
The 4th step, suppress in pressure chamber by suppressing equipment, by observing manometric numerical value, pressure in the pressure chamber is controlled at corresponding force value 1MPa～10MPa, general according to different product structures and request for utilization, force value is different, and blowdown valve is safety precautions, reaches releasing pressure automatically after the preset pressure;
The 5th step, the equipment of suppressing makes the force value of keeping setting in the pressure chamber constant in real time according to the pressure ftercompction in the pressure chamber, and 0.5h within the regular hour～168h keeps force value constant, general according to different product structures and request for utilization, the retention time is different;
The 6th step checked the whether water clock water outlet of cable two ends after the off-test, as the volume that leaks in the weighing graduated cylinder that leaks, and finished watertightness test;
B, cable direction waterproof property testing:
The first step, sample preparation: get the finished cable of suitable length, if pressure chamber length is L, cable length is answered 〉=L/2+0.5m, so that the detection of leaking after the placement of cable and the off-test is generally 4～5 meters, cable two end-grain cutting are flat, and two end faces of cable are exposed fully;
Second step, end with the cable for preparing, the flange that passes successively clamp nut, the O-ring seal with cable-through hole and be fixed on pressure chamber one end places pressure chamber, locking seals pressure chamber one end by O-ring seal with the clamp nut of cable-through hole, to be connected with the flange that is fixed on the pressure chamber other end by O-ring seal without the clamp nut of cable-through hole, with the sealing of the pressure chamber other end, an end that stretches out with the outer cable of the clamp nut of cable-through hole places in the graduated cylinder;
The 3rd step, open the running water pipe switch, will fill with water in the pressure chamber by water source interface;
The 4th step, suppress in pressure chamber by suppressing equipment, by observing manometric numerical value, pressure in the pressure chamber is controlled at corresponding force value 1MPa～10MPa, general according to different product structures and request for utilization, force value is different, and blowdown valve is safety precautions, reaches releasing pressure automatically after the preset pressure;
The 5th step, the equipment of suppressing makes the force value of keeping setting in the pressure chamber constant in real time according to the pressure ftercompction in the pressure chamber, and 0.5h within the regular hour～168h keeps force value constant, general according to different product structures and request for utilization, the retention time is different;
The 6th step checked the whether water clock water outlet of cable two ends after the off-test, as the volume that leaks in the weighing graduated cylinder that leaks, and finished watertightness test.
Characteristics of the present invention are: O-ring seal is the wear-resistant seal cushion rubber, and the aperture of O-ring seal is slightly less than the outside diameter of cable, can guarantee to be repeatedly used, and satisfies the requirement of repeatedly groping data.Pressure chamber is high strength pressure cabin, adopts high tensile steel tube, can satisfy the watertightness test of 10MPa, simulates 1000 meters depth capacity pressure environments.Pressure chamber is tubular body, two ends are equipped with clamp nut, O-ring seal, flange for sealing, can all expose the cable two ends outside the pressure chamber, be used for the horizontal watertightness performance of test cable, also cable one end can be exposed outside the pressure chamber, one end places in the pressure chamber, is used for test cable direction waterproof performance, and two kinds of methods can easily be switched.The equipment of suppressing can according to manometric real-time display module internal pressure value automatic compensation, guarantee stipulated time internal pressure cabin constant pressure for automatically suppressing equipment.Whether graduated cylinder leaks for detection of cable socket, as the accurately weighing of the leaking volume that leaks, the watertightness performance of reflection cable.Blowdown valve adopts automatic decompression valve, it is a kind of safety device, can preset pressure value, when for example carrying out the 6MPa waterproof test, blowdown valve can default to 6.3MPa(a little more than test hydraulic pressure), when automatically suppressing device fails or the other reasons build-up of pressure is too high, when pressure surpasses the blowdown valve preset value, blowdown valve is opened automatically, prevents security incident.In a word, real high pressure conditions under the Simulated Water, effective detection streamer watertightness performance has the advantages such as good reproducibility, error are little.
Description of drawings
Fig. 1 is the structural representation that the present invention is used for the horizontal watertightness performance of test cable;
Fig. 2 is the structural representation that the present invention is used for test cable direction waterproof performance.
Embodiment
Such as Fig. 1, shown in 2, a kind of cable watertightness test device, comprise clamp nut 1, O-ring seal 2, flange 3, tensimeter 4, pressure chamber 5, blowdown valve 6, water source interface 7, suppress equipment 8, suppress interface 9, graduated cylinder 10, pressure chamber 5 is tubular body, body at pressure chamber 5 is respectively equipped with tensimeter 4, blowdown valve 6, water source interface 7, suppress interface 9, the spiral shell dress is fixed a flange 3 respectively on the two ends of pressure chamber 5 bodys, be spirally connected by the flange 3 of O-ring seal 2 with pressure chamber 5 one ends with the clamp nut 1 of cable-through hole or without the clamp nut 1 of cable-through hole, be spirally connected by the flange 3 of O-ring seal 2 with pressure chamber 5 other ends with the clamp nut 1 of cable-through hole or without the clamp nut 1 of cable-through hole, below with the clamp nut 1 of cable-through hole, be provided with graduated cylinder 10, suppress equipment 8 by sebific duct with suppress interface 9 and be connected.
O-ring seal 2 is the wear-resistant seal cushion rubber.Pressure chamber 5 is high strength pressure cabin.Blowdown valve 6 is automatic decompression valve.Suppress equipment 8 for automatically suppressing equipment.
A kind of cable watertightness test method, its step is as follows:
A, the horizontal watertightness test of cable, as shown in Figure 1:
The first step, sample preparation: the finished cable 11 of getting suitable length, if pressure chamber 5 length are L, cable 11 length are answered 〉=L+1m, so that the detection of leaking after the placement of cable 11 and the off-test, be generally 8～10 meters, cable 11 two ends suitably processed making the termination smooth, the detection of being convenient to leak;
Second step, the cable 11 for preparing is inserted in the pressure chamber 5, the flange 3 that is fixed on pressure chamber 5 two ends and O-ring seal 2 are passed respectively and with the clamp nut 1 of cable-through hole in the two ends of cable 11, locking is sealed at both ends with pressure chamber by O-ring seal 2 with the clamp nut 1 of cable-through hole, cable 11 in the pressure chamber 5 is for being horizontally disposed with, and the two ends of stretching out with the cable 11 outside the clamp nut 1 of cable-through hole place respectively in the graduated cylinder 10;
The 3rd step, open the running water pipe switch, will fill with water in the pressure chamber 5 by water source interface 7;
The 4th step, suppress in pressure chamber 5 by suppressing equipment 8, by observing the numerical value of tensimeter 4, pressure in the pressure chamber 5 is controlled at corresponding force value 1MPa～10MPa, general according to different product structures and request for utilization, force value is different, and blowdown valve 6 is safety precautions, reaches releasing pressure automatically after the preset pressure;
The 5th step, suppress equipment 8 in real time according to the pressure ftercompction in the pressure chamber 5, make the force value of keeping setting in the pressure chamber 5 constant, 0.5h within the regular hour～168h keeps force value constant, general according to different product structures and request for utilization, the retention time is different;
The 6th step checked the whether water clock water outlet of cable 11 two ends after the off-test, as the volume that leaks in the weighing graduated cylinder 10 that leaks, and finished watertightness test;
B, cable direction waterproof property testing, as shown in Figure 2:
The first step, sample preparation: get the finished cable 11 of suitable length, if pressure chamber 5 length are L, cable 11 length are answered 〉=L/2+0.5m, so that the detection of leaking after the placement of cable 11 and the off-test is generally 4～5 meters, 11 liang of end-grain cutting of cable are flat, and 11 two end faces of cable are exposed fully;
Second step, end with the cable 11 for preparing, the flange 3 that passes successively clamp nut 1, the O-ring seal 2 with cable-through hole and be fixed on pressure chamber 5 one ends places pressure chamber 5, locking seals pressure chamber one end by O-ring seal 2 with the clamp nut 1 of cable-through hole, to be connected with the flange 3 that is fixed on pressure chamber 5 other ends by O-ring seal 2 without the clamp nut 1 of cable-through hole, the pressure chamber other end is sealed, cable 11 in the pressure chamber 5 is for being horizontally disposed with, and an end that stretches out with the cable 11 outside the clamp nut 1 of cable-through hole places in the graduated cylinder 10;
The 3rd step, open the running water pipe switch, will fill with water in the pressure chamber 5 by water source interface 7;
The 4th step, suppress in pressure chamber 5 by suppressing equipment 8, by observing the numerical value of tensimeter 4, pressure in the pressure chamber 5 is controlled at corresponding force value 1MPa～10MPa, general according to different product structures and request for utilization, force value is different, and blowdown valve 6 is safety precautions, reaches releasing pressure automatically after the preset pressure;
The 5th step, suppress equipment 8 in real time according to the pressure ftercompction in the pressure chamber 5, make the force value of keeping setting in the pressure chamber 5 constant, 0.5h within the regular hour～168h keeps force value constant, general according to different product structures and request for utilization, the retention time is different;
The 6th step checked the whether water clock water outlet of cable 11 two ends after the off-test, as the volume that leaks in the weighing graduated cylinder 10 that leaks, and finished watertightness test.
Claims (6)
1. cable watertightness test device, it is characterized in that: comprise clamp nut (1), O-ring seal (2), flange (3), tensimeter (4), pressure chamber (5), blowdown valve (6), water source interface (7), suppress equipment (8), suppress interface (9), graduated cylinder (10), described pressure chamber (5) is tubular body, body at pressure chamber (5) is respectively equipped with tensimeter (4), blowdown valve (6), water source interface (7), suppress interface (9), on the two ends of pressure chamber (5) body, fix respectively a flange (3), be spirally connected by the flange (3) of O-ring seal (2) with pressure chamber (5) one ends with the described clamp nut (1) of cable-through hole or without the described clamp nut (1) of cable-through hole, be spirally connected by the flange (3) of O-ring seal (2) with pressure chamber (5) other end with the described clamp nut (1) of cable-through hole or without the described clamp nut (1) of cable-through hole, be provided with graduated cylinder (10) in the below with the clamp nut (1) of cable-through hole, described suppress equipment (8) by sebific duct with suppress interface (9) and be connected.
2. a kind of cable watertightness test device according to claim 1, it is characterized in that: O-ring seal (2) is the wear-resistant seal cushion rubber.
3. a kind of cable watertightness test device according to claim 1 is characterized in that: pressure chamber (5) is high strength pressure cabin.
4. a kind of cable watertightness test device according to claim 1, it is characterized in that: blowdown valve (6) is automatic decompression valve.
5. a kind of cable watertightness test device according to claim 1 is characterized in that: suppress equipment (8) for automatically suppressing equipment.
6. cable watertightness test method, it is characterized in that: step is as follows,
A, the horizontal watertightness test of cable:
The first step, sample preparation: the finished cable (11) of getting suitable length, if pressure chamber (5) length is L, cable (11) length is answered 〉=L+1m, so that the detection of leaking after the placement of cable (11) and the off-test, be generally 8～10 meters, cable (11) two ends suitably processed making the termination smooth, the detection of being convenient to leak;
Second step, the cable (11) for preparing is inserted in the pressure chamber (5), the flange (3) that is fixed on pressure chamber (5) two ends and O-ring seal (2) are passed respectively and with the clamp nut (1) of cable-through hole in the two ends of cable (11), locking is sealed at both ends with pressure chamber by O-ring seal (2) with the clamp nut (1) of cable-through hole, and the two ends of stretching out the cable (11) outside the clamp nut (1) with cable-through hole place respectively in the graduated cylinder (10);
The 3rd step, open the running water pipe switch, will fill with water in the pressure chamber (5) by water source interface (7);
The 4th step, suppress in pressure chamber (5) by suppressing equipment (8), by observing the numerical value of tensimeter (4), pressure in the pressure chamber (5) is controlled at corresponding force value 1MPa～10Mpa, general according to different product structures and request for utilization, force value is different, and blowdown valve (6) is safety precautions, reaches releasing pressure automatically after the preset pressure;
The 5th step, suppress equipment (8) in real time according to the pressure ftercompction in the pressure chamber (5), make the force value of keeping setting in the pressure chamber (5) constant, 0.5h within the regular hour～168h keeps force value constant, general according to different product structures and request for utilization, the retention time is different;
The 6th step checked the whether water clock water outlet of cable (11) two ends after the off-test, as the volume that leaks in the weighing graduated cylinder (10) that leaks, and finished watertightness test;
B, cable direction waterproof property testing:
The first step, sample preparation: the finished cable (11) of getting suitable length, if pressure chamber (5) length is L, cable (11) length is answered 〉=L/2+0.5m, so that the detection of leaking after the placement of cable (11) and the off-test, be generally 4～5 meters, cable (11) two end-grain cutting are flat, and (11) two end faces of cable are exposed fully;
Second step, end with the cable (11) for preparing, pass successively the clamp nut (1) with cable-through hole, O-ring seal (2) and the flange (3) that is fixed on pressure chamber (5) one ends place pressure chamber (5), locking seals pressure chamber one end by O-ring seal (2) with the clamp nut (1) of cable-through hole, to be connected with the flange (3) that is fixed on pressure chamber (5) other end by O-ring seal (2) without the clamp nut (1) of cable-through hole, with the sealing of the pressure chamber other end, an end that stretches out the cable (11) outside the clamp nut (1) with cable-through hole places in the graduated cylinder (10);
The 3rd step, open the running water pipe switch, will fill with water in the pressure chamber (5) by water source interface (7);
The 4th step, suppress in pressure chamber (5) by suppressing equipment (8), by observing the numerical value of tensimeter (4), pressure in the pressure chamber (5) is controlled at corresponding force value 1MPa～10Mpa, general according to different product structures and request for utilization, force value is different, and blowdown valve (6) is safety precautions, reaches releasing pressure automatically after the preset pressure;
The 5th step, suppress equipment (8) in real time according to the pressure ftercompction in the pressure chamber (5), make the force value of keeping setting in the pressure chamber (5) constant, 0.5h within the regular hour～168h keeps force value constant, general according to different product structures and request for utilization, the retention time is different;
The 6th step checked the whether water clock water outlet of cable (11) two ends after the off-test, as the volume that leaks in the weighing graduated cylinder (10) that leaks, and finished watertightness test.
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| CN103604455A (en) * | 2013-11-27 | 2014-02-26 | 大连理工大学 | Deepwater pressure chamber combination experiment device |
| CN104502029A (en) * | 2014-12-31 | 2015-04-08 | 湖南华菱线缆股份有限公司 | Deep-sea cable radial and longitudinal water-blocking pressure test device |
| CN104614246A (en) * | 2015-01-09 | 2015-05-13 | 芜湖市金贸流体科技股份有限公司 | Through-wall pipe type test method |
| CN105466651A (en) * | 2015-12-23 | 2016-04-06 | 中国人民解放军海军工程大学 | Sealing detection device of cable gland |
| CN106353050A (en) * | 2016-08-16 | 2017-01-25 | 中天科技海缆有限公司 | Sealing device for submarine cable water resistance test |
| CN108061625A (en) * | 2017-11-30 | 2018-05-22 | 贝兹维仪器(苏州)有限公司 | A kind of dismountable device for detecting sealability |
| CN108120559A (en) * | 2016-11-30 | 2018-06-05 | 安徽联嘉祥特种电缆有限公司 | A kind of water-proof cable radial direction waterproof test chamber and test method |
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| CN103604455A (en) * | 2013-11-27 | 2014-02-26 | 大连理工大学 | Deepwater pressure chamber combination experiment device |
| CN104502029A (en) * | 2014-12-31 | 2015-04-08 | 湖南华菱线缆股份有限公司 | Deep-sea cable radial and longitudinal water-blocking pressure test device |
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| CN108828370A (en) * | 2016-06-06 | 2018-11-16 | 丽水市信裕机械制造有限公司 | Seepage of water experimental rig at power cable connector |
| CN108828370B (en) * | 2016-06-06 | 2020-09-11 | 国网江西省电力有限公司九江供电分公司 | Water permeability test device for power cable joint |
| CN106353050A (en) * | 2016-08-16 | 2017-01-25 | 中天科技海缆有限公司 | Sealing device for submarine cable water resistance test |
| CN108120559A (en) * | 2016-11-30 | 2018-06-05 | 安徽联嘉祥特种电缆有限公司 | A kind of water-proof cable radial direction waterproof test chamber and test method |
| CN108061625A (en) * | 2017-11-30 | 2018-05-22 | 贝兹维仪器(苏州)有限公司 | A kind of dismountable device for detecting sealability |
| CN110291374A (en) * | 2017-12-07 | 2019-09-27 | 苏州富强科技有限公司 | A kind of watertightness test device |
| CN110291374B (en) * | 2017-12-07 | 2021-08-24 | 苏州富强科技有限公司 | Water tightness testing device |
| CN108362442B (en) * | 2018-03-29 | 2024-04-19 | 山东和富工程检测有限公司 | Sealing ring-free leakage test device for groove type pipe joint for fire control |
| CN108362442A (en) * | 2018-03-29 | 2018-08-03 | 山东和富工程检测有限公司 | A kind of fire-fighting plough groove type pipe joint reveals experimental rig without sealing ring |
| CN108535586A (en) * | 2018-04-18 | 2018-09-14 | 中国船舶科学研究中心（中国船舶重工集团公司第七0二研究所） | A kind of watertight cable pressure pot experiment automatic checkout system |
| CN109269911A (en) * | 2018-07-25 | 2019-01-25 | 安徽顺信线缆有限公司 | A kind of water-proof cable test method and its test device |
| CN109085065A (en) * | 2018-08-01 | 2018-12-25 | 水利部交通运输部国家能源局南京水利科学研究院 | A kind of wall bushing waterproof ability test device and method |
| CN109269741A (en) * | 2018-11-09 | 2019-01-25 | 安徽宇测线缆质检技术有限公司 | A kind of cable longitudinally water blocking detection device |
| CN110987309A (en) * | 2019-12-25 | 2020-04-10 | 深圳金信诺高新技术股份有限公司 | Sealing detection system and method for underwater full-sealing device |
| CN110987309B (en) * | 2019-12-25 | 2021-09-10 | 深圳金信诺高新技术股份有限公司 | Sealing detection system and method for underwater full-sealing device |
| CN111664999A (en) * | 2020-05-28 | 2020-09-15 | 山西汾西重工有限责任公司 | Safe pressure relief mechanism and pressure relief method for closed cabin of underwater detector |
| CN111664999B (en) * | 2020-05-28 | 2024-05-28 | 山西汾西重工有限责任公司 | Safety pressure relief mechanism and pressure relief method for closed cabin of underwater detector |
| CN111751262A (en) * | 2020-07-18 | 2020-10-09 | 河南通达电缆股份有限公司 | Rapid test method for verifying longitudinal water resistance of conductor |
| CN112038996B (en) * | 2020-08-25 | 2022-01-07 | 广船国际有限公司 | Water retaining sealing device for cable protection pipe and sealing detection method |
| CN112038996A (en) * | 2020-08-25 | 2020-12-04 | 广船国际有限公司 | Water retaining sealing device for cable protection pipe and sealing detection method |
| CN115356228A (en) * | 2022-10-19 | 2022-11-18 | 常州艾博格电器有限公司 | Wearability and leakproofness check out test set are used in pencil production |
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