CN104215560B - Sea cable water permeabillity test system - Google Patents
Sea cable water permeabillity test system Download PDFInfo
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- CN104215560B CN104215560B CN201410384894.9A CN201410384894A CN104215560B CN 104215560 B CN104215560 B CN 104215560B CN 201410384894 A CN201410384894 A CN 201410384894A CN 104215560 B CN104215560 B CN 104215560B
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Abstract
The invention discloses a kind of extra large cable water permeabillity test system, comprise the temperature measurement container of band first stop valve, pressurizing vessel with the second stop valve, the pressurized cylinder be communicated with described pressurizing vessel by the first solenoid valve, drive the loading unit of described pressurized cylinder, water delivering orifice to be communicated with described pressurizing vessel and the intake pump that is communicated with water source of water inlet, described intake pump water outlet is provided with the first retaining valve, described water source is communicated with described pressurized cylinder by the second retaining valve, is communicated with between described pressurizing vessel and temperature measurement container by the second solenoid valve.The present invention coordinates by solenoid valve and retaining valve the water filling achieving temperature measurement container and pressurizing vessel, and the pressurization of pressurizing vessel, facilitate the operation of water permeabillity test under conductor water permeabillity test and metallic sheath, and structure is simple, easy to use.Be applicable to the inspection of extra large cable.
Description
Technical field
The present invention relates to a kind of extra large cable pilot system, particularly relate to a kind of extra large cable water permeabillity test system.
Background technology
At present, along with global power, the greatly developing of communications industry, the demand of extra large cable increases severely thereupon, and the importance of extra large cable inspection also highlights day by day.Sea cable inspection need detect the indices of extra large cable, and one of them is the water permeability inspection of extra large cable.The water permeability inspection of sea cable need carry out water permeabillity test under conductor water permeabillity test and metallic sheath.Wherein, conductor water permeabillity test is under the darkest section cable fault scenario of the dummycable depth of water, the water providing conductor product to specify to conductor or seawater pressure environment, tested conductor longitudinal water-blocking performance; Under metallic sheath, water permeabillity test is damaged at offshore district cable for simulating, under the condition that its metallic sheath can not block water by external water pressure, the water providing conductor product to specify to conductor or seawater pressure environment and under making its heating condition that circulates to conductor intermittently power-on, longitudinal water-blocking performance under test cable metallic sheath.But also do not have at present special experimental system to carry out water permeabillity test under conductor water permeabillity test and metallic sheath to extra large cable, be unfavorable for production and the use of extra large cable like this.
Summary of the invention
The object of the invention is the deficiency in order to overcome above-mentioned background technology, a kind of extra large cable water permeabillity test system for carrying out water permeabillity test under conductor water permeabillity test and metallic sheath to extra large cable is provided.
In order to realize above object, one provided by the invention extra large cable water permeabillity test system, comprise the temperature measurement container of band first stop valve, pressurizing vessel with the second stop valve, the pressurized cylinder be communicated with described pressurizing vessel by the first solenoid valve, drive the loading unit of described pressurized cylinder, water delivering orifice to be communicated with described pressurizing vessel and the intake pump that is communicated with water source of water inlet, described intake pump water outlet is provided with the first retaining valve, described water source is communicated with described pressurized cylinder by the second retaining valve, is communicated with between described pressurizing vessel and temperature measurement container by the second solenoid valve.Coordinate by solenoid valve and retaining valve the water filling achieving temperature measurement container and pressurizing vessel, and the pressurization of pressurizing vessel, facilitate the operation of water permeabillity test under conductor water permeabillity test and metallic sheath, and structure is simple, easy to use.
In such scheme, pipeline between described second solenoid valve and described temperature measurement container is communicated with suction pump, the water inlet of described suction pump and the pipeline connection between described second solenoid valve and described temperature measurement container, the water delivering orifice of described suction pump is communicated with described water source, and the water inlet of described suction pump is provided with the 3rd solenoid valve.Achieve rapid evacuation temperature measurement container and pressurizing vessel by the suction pump added, improve test efficiency; And the 3rd solenoid valve added can prevent the water in process of the test in pipeline from flowing into suction pump.
In such scheme, the water inlet of described temperature measurement container is provided with the 4th solenoid valve.The 4th solenoid valve added can realize finding time alone of pressurizing vessel.
In such scheme, between described 4th solenoid valve and described temperature measurement container, be provided with the first filtrator.
In such scheme, between described second solenoid valve and described pressurizing vessel, be provided with the second filtrator.
In such scheme, the water inlet of described intake pump is provided with the 3rd filtrator.
In such scheme, between described suction pump and described 3rd solenoid valve, be provided with the 4th filtrator.
In such scheme, described temperature measurement container is provided with the thermopair for detecting extra large cable core temperature.
In such scheme, being provided with the first pressure unit for detecting described pressurized cylinder water side hydraulic pressure between described pressurized cylinder and described second retaining valve, between described pressurizing vessel and described first solenoid valve, being provided with the second pressure unit for detecting hydraulic pressure in described pressurizing vessel.
In such scheme, between described pressurized cylinder and described first solenoid valve, be provided with the safety valve being communicated with described water source.It is excessive that the safety valve added can prevent pressurized cylinder from pressurizeing.
The present invention is compared with the prior art, and fully its superiority of display is:
1, coordinate by solenoid valve and retaining valve the water filling achieving temperature measurement container and pressurizing vessel, and the pressurization of pressurizing vessel, facilitate the operation of water permeabillity test under conductor water permeabillity test and metallic sheath, and structure is simple, easy to use;
2, the suction pump by adding achieves rapid evacuation temperature measurement container and pressurizing vessel, improves test efficiency; And the 3rd solenoid valve added can prevent the water in process of the test in pipeline from flowing into suction pump;
3, the 4th solenoid valve added can realize finding time alone of pressurizing vessel;
4, it is excessive that the safety valve added can prevent pressurized cylinder from pressurizeing.
The present invention has that structure is simple, easy to operate, efficiency is high and the advantage such as reliable and stable.
Accompanying drawing explanation
Fig. 1 is the theory diagram of the present embodiment.
In figure, temperature measurement container 1, the first stop valve 1a, thermopair 1b, pressurizing vessel 2, the second stop valve 2a, the first solenoid valve 3, pressurized cylinder 4, loading unit 5, intake pump 6, the first retaining valve 7, second retaining valve 8, second solenoid valve 9, suction pump 10, the 3rd solenoid valve the 11, four solenoid valve 12, first filtrator 13, second filtrator the 14, three filtrator the 15, four filtrator 16, first pressure unit 17, second pressure unit 18, safety valve 19.
Embodiment
Below in conjunction with drawings and Examples, the present invention is described in further detail, but this embodiment should not be construed as limitation of the present invention.
As shown in Figure 1, present embodiment discloses a kind of extra large cable water permeabillity test system, comprise the temperature measurement container 1 of band first stop valve 1a, with the pressurizing vessel 2 of the second stop valve 2a, by the pressurized cylinder 4 that the first solenoid valve 3 is communicated with described pressurizing vessel 2, drive the loading unit 5 of described pressurized cylinder 4, water delivering orifice is communicated with described pressurizing vessel 2 and the intake pump 6 that is communicated with water source of water inlet, described intake pump 6 water outlet is provided with the first retaining valve 7, described water source is communicated with described pressurized cylinder 4 by the second retaining valve 8, be communicated with by the second solenoid valve 9 between described pressurizing vessel 2 and temperature measurement container 1.Coordinate by solenoid valve and retaining valve the water filling achieving temperature measurement container 1 and pressurizing vessel 2, and the pressurization of pressurizing vessel 2, facilitate the operation of water permeabillity test under conductor water permeabillity test and metallic sheath, and structure is simple, easy to use.
Pipeline between above-mentioned second solenoid valve 9 and described temperature measurement container 1 is communicated with suction pump 10, the water inlet of described suction pump 10 and the pipeline connection between described second solenoid valve 9 and described temperature measurement container 1, the water delivering orifice of described suction pump 10 is communicated with described water source, and the water inlet of described suction pump 10 is provided with the 3rd solenoid valve 11.Achieve rapid evacuation temperature measurement container 1 and pressurizing vessel 2 by the suction pump 10 added, improve test efficiency; And the 3rd solenoid valve 11 added can prevent the water in process of the test in pipeline from flowing into suction pump 10.The water inlet of described temperature measurement container 1 is provided with the 4th solenoid valve 12.The 4th solenoid valve 12 added can realize finding time alone of pressurizing vessel 2.
The first filtrator 13 is provided with between above-mentioned 4th solenoid valve 12 and described temperature measurement container 1.The second filtrator 14 is provided with between described second solenoid valve 9 and described pressurizing vessel 2.The water inlet of described intake pump 6 is provided with the 3rd filtrator 15.The 4th filtrator 16 is provided with between described suction pump 10 and described 3rd solenoid valve 11.The filtrator added can prevent pipeline and equipment blocking effectively.
Above-mentioned temperature measurement container 1 is provided with the thermopair 1b for detecting extra large cable core temperature.Being provided with the first pressure unit 17 for detecting described pressurized cylinder 4 water side hydraulic pressure between described pressurized cylinder 4 and described second retaining valve 8, between described pressurizing vessel 2 and described first solenoid valve 3, being provided with the second pressure unit 18 for detecting hydraulic pressure in described pressurizing vessel 2.
The safety valve 19 being communicated with described water source is provided with between above-mentioned pressurized cylinder 4 and described first solenoid valve 3.It is excessive that the safety valve 19 added can prevent pressurized cylinder 4 from pressurizeing.
The course of work of the present invention is as follows:
Conductor water permeabillity test: first, puts into pressurizing vessel 2 by one section of extra large cable sealing to be tested, then, close the second solenoid valve 9, and open the first solenoid valve 3 and the second stop valve 2a, then, start intake pump 6 to water filling in pressurizing vessel 2, after filling, close intake pump 6 and the second stop valve 2a, again then, pressurized cylinder 4 pairs of pressurizing vessels 2 are driven to pressurize, if when the piston of pressurized cylinder 4 is pressed onto extreme position, pressure in pressurizing vessel 2 does not also reach preset value, then close the first solenoid valve 3, and reverse drive pressurized cylinder 4, pressurized cylinder 4 is just from water source water suction (current in water source enter pressurized cylinder 4 through the second retaining valve 8), after water suction, forward drive pressurized cylinder 4 pressurizes again, when the pressure of pressurized cylinder 4 water side is identical with the pressure in pressurizing vessel 2, open the first solenoid valve 3, again pressurize until the pressure in pressurizing vessel 2 reaches preset value to pressurizing vessel 2, stop pressurization, and close the first solenoid valve 3, after pressurize a period of time, open the first solenoid valve 3, the water under high pressure in pressurizing vessel 2 enters in pressurized cylinder 4, and the pressure in pressurizing vessel 2 reduces to normal pressure, then, open the second stop valve 2a and pressurizing vessel 2 is communicated with air, open the second solenoid valve 9 and the 3rd solenoid valve 11 simultaneously, and close the 4th solenoid valve 12, start suction pump 10 and pressurizing vessel 2 is found time, finally, open pressurizing vessel 2 and take out sample (extra large cable namely to be tested), and peel off the length that sample crust detection water penetrates extra large cable cable core.
Water permeabillity test under metallic sheath: first, get two sections of extra large cables to be tested to seal respectively and cross temperature measurement container 1 and pressurizing vessel 2, and being transverse in the upper boring of the sample in temperature measurement container 1 (extra large cable namely to be tested), the end connector of thermopair 1b is inserted in described hole, the end connector of thermopair 1b is contacted with the cable core of sample, simultaneously peel off a circle crust being transverse in the middle part of the sample in pressurizing vessel 2, the cable core of sample is exposed; Then, close the 3rd solenoid valve 11, and open the first solenoid valve 3, second stop valve 2a, the second solenoid valve 9, the 4th solenoid valve 12 and the first stop valve 1a; Then, start intake pump 6 to water filling in temperature measurement container 1 and pressurizing vessel 2, after filling, close intake pump 6, first stop valve 1a, the 4th solenoid valve 12, second solenoid valve 9 and the second stop valve 2a; Again then, pressurized cylinder 4 pairs of pressurizing vessels 2 are driven to pressurize, if when the piston of pressurized cylinder 4 is pressed onto extreme position, pressure in pressurizing vessel 2 does not also reach preset value, then close the first solenoid valve 3, and reverse drive pressurized cylinder 4, pressurized cylinder 4 just absorbs water from water source, after water suction, then forward drive pressurized cylinder 4 pressurizes, when the pressure of pressurized cylinder 4 water side is identical with the pressure in pressurizing vessel 2, open the first solenoid valve 3, again pressurize until the pressure in pressurizing vessel 2 reaches preset value to pressurizing vessel 2, stop pressurization, and close the first solenoid valve 3; And then, with wire, two sections of described samples are connected on strong current generator two ends, utilize strong current generator to heat until preset temperature to two sections of samples; After heat-insulation pressure keeping a period of time, open the first solenoid valve 3, the water under high pressure in pressurizing vessel 2 enters in pressurized cylinder 4, and the pressure in pressurizing vessel 2 reduces to normal pressure; Then, opening the first stop valve 1a and the second stop valve 2a makes temperature measurement container 1 and pressurizing vessel 2 communicate with air respectively, open the second solenoid valve 9, the 3rd solenoid valve 11 and the 4th solenoid valve 12 simultaneously, start suction pump 10 and temperature measurement container 1 and pressurizing vessel 2 are found time (certainly, pressurizing vessel 2 of also can only finding time); Finally, open pressurizing vessel 2 and take out sample (extra large cable namely to be tested), and peel off the length that sample crust detection water penetrates extra large cable cable core.
Under above-mentioned metallic sheath in water permeabillity test process, the temperature of sample in indirect inspection pressurizing vessel 2 is got final product by the temperature measuring sample in temperature measurement container 1, thus avoid on the sample in pressurizing vessel 2 and hole, also without the need to sealing on pressurizing vessel 2, thermopair 1b is installed, improves the accuracy of test.
The present invention coordinates by solenoid valve and retaining valve the water filling achieving temperature measurement container 1 and pressurizing vessel 2, and the pressurization of pressurizing vessel 2, facilitate the operation of water permeabillity test under conductor water permeabillity test and metallic sheath, and structure is simple, easy to use; Achieve rapid evacuation temperature measurement container 1 and pressurizing vessel 2 by the suction pump 10 added, improve test efficiency; And the 3rd solenoid valve 11 added can prevent the water in process of the test in pipeline from flowing into suction pump 10; The 4th solenoid valve 12 added can realize finding time alone of pressurizing vessel 2; It is excessive that the safety valve 19 added can prevent pressurized cylinder 4 from pressurizeing.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. an extra large cable water permeabillity test system, it is characterized in that, comprise the temperature measurement container (1) of band first stop valve (1a), pressurizing vessel (2) with the second stop valve (2a), by the pressurized cylinder (4) that the first solenoid valve (3) is communicated with described pressurizing vessel (2), drive the loading unit (5) of described pressurized cylinder (4), water delivering orifice is communicated with described pressurizing vessel (2) and the intake pump (6) that is communicated with water source of water inlet, described intake pump (6) water outlet is provided with the first retaining valve (7), described water source is communicated with described pressurized cylinder (4) by the second retaining valve (8), be communicated with by the second solenoid valve (9) between described pressurizing vessel (2) and temperature measurement container (1).
2. extra large cable water permeabillity test system according to claim 1, it is characterized in that, pipeline between described second solenoid valve (9) and described temperature measurement container (1) is communicated with suction pump (10), the water inlet of described suction pump (10) and the pipeline connection between described second solenoid valve (9) and described temperature measurement container (1), the water delivering orifice of described suction pump (10) is communicated with described water source, and the water inlet of described suction pump (10) is provided with the 3rd solenoid valve (11).
3. extra large cable water permeabillity test system according to claim 1, it is characterized in that, the water inlet of described temperature measurement container (1) is provided with the 4th solenoid valve (12).
4. extra large cable water permeabillity test system according to claim 3, is characterized in that, be provided with the first filtrator (13) between described 4th solenoid valve (12) and described temperature measurement container (1).
5. extra large cable water permeabillity test system according to claim 1, is characterized in that, be provided with the second filtrator (14) between described second solenoid valve (9) and described pressurizing vessel (2).
6. extra large cable water permeabillity test system according to claim 1, it is characterized in that, the water inlet of described intake pump (6) is provided with the 3rd filtrator (15).
7. extra large cable water permeabillity test system according to claim 2, is characterized in that, be provided with the 4th filtrator (16) between described suction pump (10) and described 3rd solenoid valve (11).
8. extra large cable water permeabillity test system according to claim 1, it is characterized in that, described temperature measurement container (1) is provided with the thermopair (1b) for detecting extra large cable core temperature.
9. extra large cable water permeabillity test system according to claim 1, it is characterized in that, being provided with the first pressure unit (17) for detecting described pressurized cylinder (4) water side hydraulic pressure between described pressurized cylinder (4) and described second retaining valve (8), between described pressurizing vessel (2) and described first solenoid valve (3), being provided with the second pressure unit (18) for detecting described pressurizing vessel (2) interior hydraulic pressure.
10. extra large cable water permeabillity test system according to claim 1, is characterized in that, be provided with the safety valve (19) being communicated with described water source between described pressurized cylinder (4) and described first solenoid valve (3).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410384894.9A CN104215560B (en) | 2014-08-06 | 2014-08-06 | Sea cable water permeabillity test system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410384894.9A CN104215560B (en) | 2014-08-06 | 2014-08-06 | Sea cable water permeabillity test system |
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| CN104215560A CN104215560A (en) | 2014-12-17 |
| CN104215560B true CN104215560B (en) | 2015-09-02 |
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| CN105466837B (en) * | 2015-12-30 | 2018-03-02 | 上海电缆研究所有限公司 | Submarine cable water permeabillity test experimental rig and submarine cable water permeabillity test method |
| CN110631981B (en) * | 2019-10-25 | 2024-05-24 | 上海国缆检测股份有限公司 | Pressure water permeable device for joint outer protection layer test |
| CN111721639B (en) * | 2020-07-28 | 2023-09-08 | 中天科技海缆股份有限公司 | Submarine cable water permeability test system and method for deep sea |
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| CN201233349Y (en) * | 2008-08-01 | 2009-05-06 | 江苏通光信息有限公司 | Water pressure resistant and water penetration performance test device for submarine cable and underwater facilities thereof |
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| CN204008402U (en) * | 2014-08-06 | 2014-12-10 | 国网浙江省电力公司舟山供电公司 | Sea cable water permeabillity test system |
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2014
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Patent Citations (6)
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| US5206597A (en) * | 1990-08-27 | 1993-04-27 | The United States Of America As Represented By The Secretary Of The Navy | Capacitive moisture detection apparatus |
| CN201233349Y (en) * | 2008-08-01 | 2009-05-06 | 江苏通光信息有限公司 | Water pressure resistant and water penetration performance test device for submarine cable and underwater facilities thereof |
| CN101644648A (en) * | 2008-08-06 | 2010-02-10 | 江苏通光信息有限公司 | Method and device for testing water pressure resistance and water permeability of undersea cable and underwater facility thereof |
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Application publication date: 20141217 Assignee: ZHEJIANG ZHOUSHAN QIMING POWER CONSTRUCTION CO., LTD. Assignor: ZHOUSHAN POWER SUPPLY COMPANY OF STATE GRID ZHEJIANG ELECTRIC POWER COMPANY Contract record no.: 2017330000130 Denomination of invention: Submarine cable water-penetrating test system Granted publication date: 20150902 License type: Common License Record date: 20170914 |
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