CN103326305A - Water tight method for cable incoming - Google Patents
Water tight method for cable incoming Download PDFInfo
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- CN103326305A CN103326305A CN2013102549926A CN201310254992A CN103326305A CN 103326305 A CN103326305 A CN 103326305A CN 2013102549926 A CN2013102549926 A CN 2013102549926A CN 201310254992 A CN201310254992 A CN 201310254992A CN 103326305 A CN103326305 A CN 103326305A
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- shrinkable
- bush
- cable
- stuffing box
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Abstract
The invention discloses a water tight method for cable incoming. According to the water tight method, a heat-shrinkable casing pipe can be tightly connected with a stuffing box in a matched mode mainly due to the fact that the heat-shrinkable casing pipe is additionally sleeved on a cable line so that the aim of sealing a cable incoming opening is achieved. The opening can be sealed due to the fact that the heat-shrinkable casing pipe is additionally arranged between the stuffing box and the cable, and water tightness is effectively improved when the cable comes in.
Description
Technical field
The present invention relates to a kind of cable joint field of sealing technology, particularly a kind of watertight method of long cable section of ingoing line.
Background technology
The inlet wire method of electric equipment relates generally to the electromechanical equipment industry.According to the authority file of every profession and trade, must satisfy the requirement of close property for the long cable section of ingoing line of electric equipment, to reach waterproof, protection against the tide, insulating requirements.But because the diameter of the long cable section of ingoing line mouth that adopts of device fabrication merchant and the required cable of equipment and not matching can not satisfy protection against the tide, the insulation function of code requirement when making the cable access arrangement.
At shipbuilding industry, mark the requirement of CBT3667.1-1995 according to ship: the requirement of incoming line stuffing box internal diameter and cable size such as following table.
Be the non-close-fitting structural representation of stuffing box incoming line and cable as Fig. 1, for example, when the stuffing box internal diameter of joining when equipment is 24mm, the diameter of cable may have only 12mm, has only modification equipment, the method of changing suitable incoming line stuffing box or changing cable can meet the demands, but the required cost of which kind of method is all very high, and workload is big.
On aspect the watertight method of long cable section of ingoing line, we have retrieved following open source literatures, for example:
1, Chinese patent, application number: CN201020578470.3, title: a kind of water-stop stuffing box of submerged cable inlet wire, summary: the water-stop stuffing box of this utility model submerged cable inlet wire, comprise filling tube, gland, go up inner pad and following inner pad, it is characterized in that: be connected by flange between described filling tube and the cable connection cabinet, or directly weld with the cable connection cabinet, in filling tube and between last inner pad and following inner pad, be provided with watertight construction, described watertight construction is by compression seal rubber, Expansion sealing rubber and compression-expansion part constitute and are O type coil structures, and the compression-expansion part places between compression seal rubber and the Expansion sealing rubber.This utility model need add a plurality of pads of cover could realize sealing function, so production process is comparatively complicated.
2, Chinese patent, application number: CN200510131180.8, title: the containment member of submerged cable, summary: this invention relates to a kind of containment member for submerged cable.This invention comprises that two ends are the snap joint of band small hose, it is characterized in that therebetween also being connected with a pair of reducing snap joint that is socket-connected by thick flexible pipe sealing, and is fastenedly connected with suitable sealing nut and forms.Sealed mouth and sealing nut by band taper surface in it are realized the sealing at thin, thick flexible pipe two ends.Realize that like this cable walks in the thick flexible pipe of sealing, with and cable on cable plug and socket plug within it.Because this invention only provides flexible pipe as snap joint, therefore use this technology to the mechanical splice of hard comparatively, difficult realization.
Summary of the invention
The watertight method that the purpose of this invention is to provide a kind of long cable section of ingoing line, the technological deficiency that can't seal when not meeting code requirement with the cable size size of the incoming line stuffing box that solves watertight equipment in the prior art and access arrangement.
A kind of watertight method of long cable section of ingoing line is characterized in that: may further comprise the steps,
Step 1: with the surface location of heat-shrinkable T bush A pyrocondensation to cable;
Step 2: after treating that heat-shrinkable T bush A cooling is fixing, heat-shrinkable T bush B two ends pyrocondensation to cable surface, is made the medium position of heat-shrinkable T bush B compress heat-shrinkable T bush simultaneously and forms the projection position;
Step 3: after treating that heat-shrinkable T bush B cooling is fixing, the projection position of heat-shrinkable T bush B is positioned in the clamping section of stuffing box, operates stuffing box subsequently the clamping section is clamped.
Principle of the present invention is as follows: by adding double-deck heat-shrinkable T bush, make heat-shrinkable T bush play sealing effectiveness, simultaneously, the heat-shrinkable T bush A of ground floor by the heat-shrinkable T bush B contracting packing of the second layer, make when stuffing box clamps heat-shrinkable T bush B, two-layer heat-shrinkable T bush can be compressed greatly, thereby reaches the purpose of close-fitting stuffing box.And adopting double-deck heat-shrinkable T bush as the sealing original paper, the thermal shrinkable sleeve B of the second layer and the heat-shrinkable T bush A of ground floor have played the effect of double structure double containment.
The length of heat-shrinkable T bush A described in the present invention and the equal in length of stuffing box, length is 30～50mm, and described heat-shrinkable T bush B is than the long 20mm～30mm of length of heat-shrinkable T bush A.The heat-shrinkable T bush A that is arranged so that like this can by heat-shrinkable T bush B packing fully, and the effect with stuffing box clamping section close-fitting is just in time played in the camber position.
Among the present invention, the control of described pyrocondensation temperature between 150～250 ℃, in this temperature heat-shrinkable T bush can pyrocondensation to cable surface; Described cooling fixed temperature is between 10～50 ℃, and in this temperature, heat-shrinkable T bush and cable surface cling after pyrocondensation.
The present invention has following beneficial effect:
1. adopt the mode of additional heat Heat-Shrinkable Tubings to make interface seal the watertightness when effectively raising long cable section of ingoing line between stuffing box of the present invention and the cable.
2. the present invention adopts the heat-shrinkable T bush of structure of two layers, plays the effect of double-decker double containment.
3. the present invention is simple in structure, and cost of manufacture is low, is convenient to promote.
Description of drawings
Fig. 1 is the non-close-fitting structural representation of stuffing box incoming line and cable;
Fig. 2 is the structural representation of cable when enclosing the individual layer heat-shrinkable T bush;
Fig. 3 is the structural representation after cable is enclosed two-layer heat-shrinkable T bush;
Fig. 4 is that cable and stuffing box are by two-layer heat-shrinkable T bush close-fitting syndeton schematic diagram.
Parts title and sequence number among the figure:
Embodiment
The watertight method of long cable section of ingoing line of the present invention is described below in conjunction with drawings and Examples.
Embodiment 1:
Shown in Fig. 2-4, stuffing box 1 length is 30mm, the watertight method of this invention long cable section of ingoing line, may further comprise the steps, choosing length is the heat-shrinkable T bush 3 of 30mm, adopt heat gun with the surface location of heat-shrinkable T bush A3 pyrocondensation to cable 2, the pyrocondensation temperature is 150 ℃, treat that subsequently heat-shrinkable T bush A3 is cooled to 40 ℃ and makes itself and cable 2 cold being solidly connected, choosing length is the heat-shrinkable T bush B4 of 50mm, to cable 2 surfaces, the pyrocondensation temperature is 150 ℃ to the employing heat gun with heat-shrinkable T bush B4 pyrocondensation, with making the medium position of heat-shrinkable T bush B4 compress heat-shrinkable T bush 3 and form protruding; After treating that heat-shrinkable T bush B4 cooling is fixed to 50 ℃, the projection position of overlapping heat-shrinkable T bush B4 is positioned in the clamping section of stuffing box 1, operates stuffing box 1 subsequently the clamping section is clamped.
Embodiment 2:
Difference from Example 1 is that stuffing box 1 and heat-shrinkable T bush A3 length are 40mm, and heat-shrinkable T bush B4 degree is 60mm, and the pyrocondensation temperature is 200 ℃, and the cooling fixed temperature is 30 ℃, and all the other execution modes are identical with embodiment 1.
Embodiment 3:
Difference from Example 1 is that stuffing box 1 and heat-shrinkable T bush A3 length are 50mm, and heat-shrinkable T bush B4 degree is 70mm, and the pyrocondensation temperature is 250 ℃, and the cooling fixed temperature is 20 ℃, and all the other execution modes are identical with embodiment 1.
Preferably provide data to support embodiment, below be reckoning, inaccurate:
Application examples 1:
Adopting internal diameter is the stuffing box 1 of 24mm and the cable 2 that external diameter is 12mm, the thickness gross thickness is 15mm when heat-shrinkable T bush 3 and convex heat-shrinkable T bush 4 malcompressions, thickness is 10mm when compressing, watertight method according to long cable section of ingoing line of the present invention connects cable 2 and stuffing box 1, any end is put into water carry out about 48 hours sealing test, it is 0.002% that the other end detects infiltration aluminium, and the acid and alkali corrosion degree is 0.004%.
Claims (5)
1. the watertight method of a long cable section of ingoing line is characterized in that: may further comprise the steps,
Step 1: with heat-shrinkable T bush A(3) pyrocondensation is to the surface location of cable (2);
Step 2: treat heat-shrinkable T bush A(3) cooling fixing after, with heat-shrinkable T bush B(4) the two ends pyrocondensation is to cable (2) surface, makes heat-shrinkable T bush B(4 simultaneously) medium position compress heat-shrinkable T bush (3) and form the projection position;
Step 3: treat heat-shrinkable T bush B(4) cooling fixing after, with heat-shrinkable T bush B(4) the projection position be positioned in the clamping section of stuffing box (1), operate stuffing box (1) subsequently the clamping section clamped.
2. the watertight method of long cable section of ingoing line according to claim 1, it is characterized in that: the equal in length of length described heat-shrinkable T bush A(3) and stuffing box (1), length is 30～50mm.
3. the watertight method of long cable section of ingoing line according to claim 1 and 2 is characterized in that: described heat-shrinkable T bush B(4) than heat-shrinkable T bush A(3) length will long 20mm～30mm.
4. the watertight method of long cable section of ingoing line according to claim 3 is characterized in that: described pyrocondensation temperature control is between 150～250 ℃.
5. the watertight method of long cable section of ingoing line according to claim 3, it is characterized in that: described cooling fixed temperature is between 10～50 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102549926A CN103326305A (en) | 2013-06-25 | 2013-06-25 | Water tight method for cable incoming |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102549926A CN103326305A (en) | 2013-06-25 | 2013-06-25 | Water tight method for cable incoming |
Publications (1)
| Publication Number | Publication Date |
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| CN103326305A true CN103326305A (en) | 2013-09-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013102549926A Pending CN103326305A (en) | 2013-06-25 | 2013-06-25 | Water tight method for cable incoming |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108879506A (en) * | 2017-05-10 | 2018-11-23 | 日立金属株式会社 | The water blocking structure and harness of cable |
| CN109167312A (en) * | 2018-10-12 | 2019-01-08 | 上海外高桥造船有限公司 | A kind of unit cable wears the encapsulating method of tank wall |
| CN109659044A (en) * | 2018-11-27 | 2019-04-19 | 无锡海核装备科技有限公司 | A kind of containment use is electrical to run through device |
| CN110487330A (en) * | 2019-08-22 | 2019-11-22 | 中船黄埔文冲船舶有限公司 | A kind of sensor detachable watertight protection cover |
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| DE2553755A1 (en) * | 1975-11-29 | 1977-06-02 | Koettgen Kg | Plastics joint box for electric cables - having cable entry ends bonded to polyethylene cable sleeve by heating plastics by wires embedded in plastics |
| CN2103211U (en) * | 1991-11-07 | 1992-04-29 | 成都市塑料管制品厂 | Reinforced heat-shrinkable sleeve for communication cable connection |
| EP0514788B1 (en) * | 1991-05-23 | 1995-07-26 | RXS Schrumpftechnik-Garnituren GmbH | Longitudinally watertight cable sleeve |
| CN1808812A (en) * | 2005-12-29 | 2006-07-26 | 国家海洋局第一海洋研究所 | Sealing components of submarine cable |
| CN201130842Y (en) * | 2007-12-26 | 2008-10-08 | 吉林市吉福新材料有限责任公司 | Thermal shrinkage water-joint for power cable |
| CN201191751Y (en) * | 2008-05-13 | 2009-02-04 | 河南省电力公司安阳供电公司 | Cable terminal head |
| EP1049228B1 (en) * | 1999-04-29 | 2009-09-16 | Prysmian Cables Et Systemes France | Sealing device of the gland type for a cable |
| CN201866420U (en) * | 2010-10-27 | 2011-06-15 | 广州文冲船厂有限责任公司 | Water-seal stuffing box of underwater cable inlet wire |
| CN102842880A (en) * | 2012-09-07 | 2012-12-26 | 江苏中兴水务有限公司 | Quadruple sealing structure of cable of submersible electric pump |
| CN202872313U (en) * | 2012-09-08 | 2013-04-10 | 江苏中兴水务有限公司 | Inner joint leakproof structure of submersible electric pump cable |
| CN103062512A (en) * | 2012-12-28 | 2013-04-24 | 广州文冲船厂有限责任公司 | Cable watertight stuffing box and using method thereof |
-
2013
- 2013-06-25 CN CN2013102549926A patent/CN103326305A/en active Pending
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|---|---|---|---|---|
| DE2553755A1 (en) * | 1975-11-29 | 1977-06-02 | Koettgen Kg | Plastics joint box for electric cables - having cable entry ends bonded to polyethylene cable sleeve by heating plastics by wires embedded in plastics |
| EP0514788B1 (en) * | 1991-05-23 | 1995-07-26 | RXS Schrumpftechnik-Garnituren GmbH | Longitudinally watertight cable sleeve |
| CN2103211U (en) * | 1991-11-07 | 1992-04-29 | 成都市塑料管制品厂 | Reinforced heat-shrinkable sleeve for communication cable connection |
| EP1049228B1 (en) * | 1999-04-29 | 2009-09-16 | Prysmian Cables Et Systemes France | Sealing device of the gland type for a cable |
| CN1808812A (en) * | 2005-12-29 | 2006-07-26 | 国家海洋局第一海洋研究所 | Sealing components of submarine cable |
| CN201130842Y (en) * | 2007-12-26 | 2008-10-08 | 吉林市吉福新材料有限责任公司 | Thermal shrinkage water-joint for power cable |
| CN201191751Y (en) * | 2008-05-13 | 2009-02-04 | 河南省电力公司安阳供电公司 | Cable terminal head |
| CN201866420U (en) * | 2010-10-27 | 2011-06-15 | 广州文冲船厂有限责任公司 | Water-seal stuffing box of underwater cable inlet wire |
| CN102842880A (en) * | 2012-09-07 | 2012-12-26 | 江苏中兴水务有限公司 | Quadruple sealing structure of cable of submersible electric pump |
| CN202872313U (en) * | 2012-09-08 | 2013-04-10 | 江苏中兴水务有限公司 | Inner joint leakproof structure of submersible electric pump cable |
| CN103062512A (en) * | 2012-12-28 | 2013-04-24 | 广州文冲船厂有限责任公司 | Cable watertight stuffing box and using method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 宋谦: "《船舶电工制作》", 30 September 2009 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108879506A (en) * | 2017-05-10 | 2018-11-23 | 日立金属株式会社 | The water blocking structure and harness of cable |
| CN113904278A (en) * | 2017-05-10 | 2022-01-07 | 日立金属株式会社 | Water blocking structure for cable and wire harness |
| CN109167312A (en) * | 2018-10-12 | 2019-01-08 | 上海外高桥造船有限公司 | A kind of unit cable wears the encapsulating method of tank wall |
| CN109659044A (en) * | 2018-11-27 | 2019-04-19 | 无锡海核装备科技有限公司 | A kind of containment use is electrical to run through device |
| CN109659044B (en) * | 2018-11-27 | 2024-04-23 | 无锡海核装备科技有限公司 | Electrical penetration device for containment |
| CN110487330A (en) * | 2019-08-22 | 2019-11-22 | 中船黄埔文冲船舶有限公司 | A kind of sensor detachable watertight protection cover |
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Application publication date: 20130925 |
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