CN203617045U - Cable vacuum pumping and moisture removing device - Google Patents
Cable vacuum pumping and moisture removing device Download PDFInfo
- Publication number
- CN203617045U CN203617045U CN201320726390.1U CN201320726390U CN203617045U CN 203617045 U CN203617045 U CN 203617045U CN 201320726390 U CN201320726390 U CN 201320726390U CN 203617045 U CN203617045 U CN 203617045U
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- China
- Prior art keywords
- cable
- valve
- vacuum
- pressure
- nitrogen gas
- 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 - Fee Related
Links
- 238000005086 pumping Methods 0.000 title abstract 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 69
- 238000003860 storage Methods 0.000 claims abstract description 10
- 229910052757 nitrogen Inorganic materials 0.000 claims description 32
- 239000007789 gas Substances 0.000 claims description 8
- 239000000463 material Substances 0.000 abstract description 7
- 230000032683 aging Effects 0.000 abstract description 4
- 230000003647 oxidation Effects 0.000 abstract description 4
- 238000007254 oxidation reaction Methods 0.000 abstract description 4
- 239000002699 waste material Substances 0.000 abstract description 3
- 238000007789 sealing Methods 0.000 abstract description 2
- 229910001873 dinitrogen Inorganic materials 0.000 abstract 5
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 229920003023 plastic Polymers 0.000 description 7
- 239000004033 plastic Substances 0.000 description 7
- 238000009413 insulation Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 230000035882 stress Effects 0.000 description 3
- 210000004534 cecum Anatomy 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000009489 vacuum treatment Methods 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 239000011265 semifinished product Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
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Abstract
The utility model discloses a cable vacuum pumping and moisture removing device which comprises a frame and comprises a mechanical vacuum pump and a nitrogen gas storage bottle in the frame. The cable vacuum pumping and moisture removing device is characterized in that the bottom of the frame is provided with universal wheels, the mechanical vacuum pump is orderly communicated with a vacuum master valve, a vacuum gauge, a thermo-hygrometer, a value before a meter, a cable connection port, a discharge valve, a nitrogen gas master valve, a pressure reducing valve, a nitrogen gas cylinder switch and the nitrogen gas storage bottle through a pipeline, the gap between a cable core and a cable insulated layer is utilized, the cable sealing is subjected to vacuum processing, nitrogen gas with certain pressure is used to bring a part of moisture away through the cable core, the cable moisture removal is realized, the insulated level of the cable is raised, the aging and oxidation speeds of the cable are lowered, the service life of the cable is prolonged, the stability of a cable performance index is ensured, the waste of material caused by cable replacement is avoided at the same time, and a lot of manpower and material resources are saved.
Description
Technical field
The utility model relates to a kind of cable and vacuumizes aerating device, relates in particular to a kind of cable and vacuumizes damp-eliminating apparatus.
Background technology
Existing cables manufacturing technology is mainly cable extrusion device, this device is mainly that high temperature plastics reserves naturally, semi-finished product cable is passed from the core rod of mould, by the extensibility of plastics self, be attached to half-finished surface, form the outer layer plastic of protection cable, this ground technology can complete the work of cable outer layer plastic production, but still there are a lot of defects, between cable outer layer plastics and cable, gap is large, there is a large amount of air cable inside, easily cause cable aging, oxidation etc., due to different from the characteristic of various plastics, the property upheld pulling force is also different, easily cause plastics fracture, easily there is the power failure causing because making moist in the cable using at power department like this.
In the higher area of some levels of ground water, in cable ditch, cable well, often there is ponding, cable intermediate joint is immersed in water, it is comparatively general that moisture enters core phenomenon by transition joint, after cable watered and wetting, under the effect of electric field, can there is water-treeing phenomenon, finally cause cable breakdown.Processing method only has the partial cables excision replacing of making moist, and needs a large amount of human and material resources, and repair time is also often longer, at least needs more than four days.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of cable simple in structure, that dehumidifying is effective and easy to operate and vacuumizes damp-eliminating apparatus.
For solving the problems of the technologies described above, technical solution adopted in the utility model is: a kind of cable vacuumizes damp-eliminating apparatus, comprise vehicle frame, and vehicle frame internal mechanical vacuum pump and nitrogen storage gas cylinder, it is characterized in that described vehicle frame bottom is provided with universal wheel, described oil-sealed rotary pump is communicated with valve, cable connectivity port, vent valve, nitrogen main valve, pressure-reducing valve, nitrogen cylinder switch and described nitrogen storage gas cylinder before vacuum main valve, vacuum gauge, Hygrothermograph, table successively by pipeline.
Preferably, described oil-sealed rotary pump is connected with PLC control module, and described PLC control module is connected with touch-screen.
Preferably, described cable connectivity port is made up of A valve, the B valve valve that is connected with C that is connected that is connected, and described A valve, the B valve valve that is connected with C that is connected that is connected is equipped with the connector suitable with cable.
Preferably, described pressure-reducing valve is provided with high-pressure side Pressure gauge and low-pressure end Pressure gauge.
The beneficial effect that adopts technique scheme to produce is: the utility model utilizes the gap existing between cable core and cable insulation, its cable seal is carried out to vacuum treatment, take away part moisture by core with the nitrogen of certain pressure, realize cable dehumidifying, improve cable insulation level, reduce aging, the oxidation rate of cable, improve the useful life of cable, guarantee the stable of cable performance indexes, avoided cable to change the waste of material causing, energy-conservation a large amount of human and material resources simultaneously.
Accompanying drawing explanation
Fig. 1 is the utility model theory structure schematic diagram;
Wherein, oil-sealed rotary pump 1, vacuum main valve, 2 vacuum gauges 3, Hygrothermograph 4, valve 5 before table, the A valve 6 that is connected, the B valve 7 that is connected, the C valve 8 that is connected, vent valve 9, nitrogen main valve 10, pressure-reducing valve 11, nitrogen cylinder switch 12, nitrogen storage gas cylinder 13.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
As shown in Figure 1, the utility model is that a kind of cable vacuumizes damp-eliminating apparatus, comprise vehicle frame, and vehicle frame internal mechanical vacuum pump 1 and nitrogen storage gas cylinder 13, it is characterized in that described vehicle frame bottom is provided with universal wheel, described oil-sealed rotary pump 1 by pipeline successively with vacuum main valve 2, vacuum gauge 3, Hygrothermograph 4, valve 5 before table, cable connectivity port, vent valve 9, nitrogen main valve 10, pressure-reducing valve 11, nitrogen cylinder switch 12 and described nitrogen storage gas cylinder 13 are communicated with, described oil-sealed rotary pump is connected with PLC control module, described PLC control module is connected with touch-screen, described cable connectivity port is by the A valve 6 that is connected, B valve 7 valve 8 that is connected with C that is connected forms, the described A valve 6 that is connected, B valve 8 valve 8 that is connected with C that is connected is equipped with the connector suitable with cable, described pressure-reducing valve 11 is provided with high-pressure side Pressure gauge and low-pressure end Pressure gauge.
Use principle of the present utility model is: first two ends cable insulation is exposed to 200mm left and right, by its wiped clean, with suitable jiont treatment on the insulating barrier exposing, use cutting ferrule clamping cables simultaneously, assurance joint sealing is good, the other end at cable is installed special cecum plug by same method, and the suitable joint connecting is connected to the corresponding cable of equipment connectivity port.Before opening of device, whether checkout facility is connected firmly everywhere, whether valve is in closed condition everywhere, open nitrogen main valve 10 and nitrogen cylinder switch 12, what now pressure-reducing valve 11 principal pressure tables showed is the nitrogen pressure in nitrogen cylinder, the pressure of secondary stress table is zero, the pressure regulation bar of slow circumvolve pressure-reducing valve 11 clockwise, the pressure of pressure-reducing valve 11 secondary stress tables raises gradually, what show is the output pressure of nitrogen storage gas cylinder 13, operating pressure while being phase cable inflated with nitrogen, switch on power, vacuum gauge 3 and Hygrothermograph 4 show normal, can start oil-sealed rotary pump 1, open vacuum main valve 2(vacuum main valve only just can open under oil-sealed rotary pump opening), open again the front valve 5 of table, now, on vacuum gauge 3, show the vacuum degree in cable, Hygrothermograph 4 shows the humidity that deflates (instantly the humidity in cable), when vacuum degree and humiture reach after the requirement of defined, continue again to vacuumize about 30 minutes, then close the front valve 5 of table, close again vacuum main valve 2, finally close oil-sealed rotary pump 1.After its cable is vacuumized, carry out again inflated with nitrogen, first each valve cuts out, open nitrogen main valve 10 and nitrogen cylinder switch 12, open again the corresponding A valve 6 that is connected, B valve 7 or the C valve 8 that is connected that is connected rushes nitrogen in cable, now the pressure of the secondary stress table of pressure-reducing valve 11 can slightly decline, in the time that the pressure of Pressure gauge demonstration recovers setting pressure, show that in cable, nitrogen is full of, can close nitrogen main valve 10, inflated with nitrogen finishes, open vent valve 9, unnecessary nitrogen is emitted, make the nitrogen pressure in cable return to atmospheric pressure, finally corresponding adaptive joint and cecum plug are removed, cable dehumidifying work is complete.
The utility model utilizes the gap existing between cable core and cable insulation, its cable seal is carried out to vacuum treatment, take away part moisture by core with the nitrogen of certain pressure, realize cable dehumidifying, improve cable insulation level, reduce aging, the oxidation rate of cable, improve the useful life of cable, guarantee the stable of cable performance indexes, avoided cable to change the waste of material causing, energy-conservation a large amount of human and material resources simultaneously.
Claims (4)
1. a cable vacuumizes damp-eliminating apparatus, comprise vehicle frame, and vehicle frame internal mechanical vacuum pump (1) and nitrogen storage gas cylinder (13), it is characterized in that: described vehicle frame bottom is provided with universal wheel, described oil-sealed rotary pump (1) is communicated with valve (5), cable connectivity port, vent valve (9), nitrogen main valve (10), pressure-reducing valve (11), nitrogen cylinder switch (12) and described nitrogen storage gas cylinder (13) before vacuum main valve (2), vacuum gauge (3), Hygrothermograph (4), table successively by pipeline.
2. cable according to claim 1 vacuumizes damp-eliminating apparatus, it is characterized in that: described oil-sealed rotary pump is connected with PLC control module, and described PLC control module is connected with touch-screen.
3. cable according to claim 1 vacuumizes damp-eliminating apparatus, it is characterized in that: described cable connectivity port is made up of A valve (6), B valve (7) valve (8) that is connected with C that is connected that is connected, described A valve (6), B valve (8) valve (8) that is connected with C that is connected that is connected is equipped with the connector suitable with cable.
4. cable according to claim 1 vacuumizes damp-eliminating apparatus, it is characterized in that: described pressure-reducing valve (11) is provided with high-pressure side Pressure gauge and low-pressure end Pressure gauge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320726390.1U CN203617045U (en) | 2013-11-18 | 2013-11-18 | Cable vacuum pumping and moisture removing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320726390.1U CN203617045U (en) | 2013-11-18 | 2013-11-18 | Cable vacuum pumping and moisture removing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203617045U true CN203617045U (en) | 2014-05-28 |
Family
ID=50769674
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320726390.1U Expired - Fee Related CN203617045U (en) | 2013-11-18 | 2013-11-18 | Cable vacuum pumping and moisture removing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203617045U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107046253A (en) * | 2017-05-05 | 2017-08-15 | 王学峰 | Cable watered and wetting processing unit |
| CN107768029A (en) * | 2017-12-04 | 2018-03-06 | 长沙恒飞电缆有限公司 | The method and apparatus of silanes crosslinked cable |
| CN110470106A (en) * | 2019-09-03 | 2019-11-19 | 海南电网有限责任公司电力科学研究院 | A kind of power cable moisture removal platform and method |
| CN110994437A (en) * | 2019-11-22 | 2020-04-10 | 重庆泰山电缆有限公司 | High-voltage cable water inlet treatment method |
| CN113653945A (en) * | 2021-08-18 | 2021-11-16 | 华能山东石岛湾核电有限公司 | Inflating device and inflating method for high-voltage cable |
-
2013
- 2013-11-18 CN CN201320726390.1U patent/CN203617045U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107046253A (en) * | 2017-05-05 | 2017-08-15 | 王学峰 | Cable watered and wetting processing unit |
| CN107046253B (en) * | 2017-05-05 | 2023-07-28 | 王学峰 | Cable water inlet humidifying treatment device |
| CN107768029A (en) * | 2017-12-04 | 2018-03-06 | 长沙恒飞电缆有限公司 | The method and apparatus of silanes crosslinked cable |
| CN110470106A (en) * | 2019-09-03 | 2019-11-19 | 海南电网有限责任公司电力科学研究院 | A kind of power cable moisture removal platform and method |
| CN110994437A (en) * | 2019-11-22 | 2020-04-10 | 重庆泰山电缆有限公司 | High-voltage cable water inlet treatment method |
| CN113653945A (en) * | 2021-08-18 | 2021-11-16 | 华能山东石岛湾核电有限公司 | Inflating device and inflating method for high-voltage cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140528 |