CN103579987B - A kind of anti-explosion cable joint sealing method - Google Patents

Abstract

The present invention relates to a kind of anti-explosion cable joint sealing method, its innovative point is: the anti-explosion cable joint of employing mainly comprises outer Glan body, interior Glan body, inner sleeve and locking ring set; The top of outer Glan body and interior Glan body bottom are connected by internal and external screw thread and are clamped in the outer conical surface of inner sleeve by the internal conical surface of locking ring set; By filling clay in the gap between inner sleeve and core, and clay front end is pinched tapered; Outer Glan body and interior Glan body are tightened and clay are extruded into interior Glan body line outlet completely by utilization, and after the anti-explosion cable joint after filling clay is left standstill 50 ~ 65Min, whether overhaul seals completely; Normal temperature cure is carried out after finally re-assemblying.The invention has the advantages that: in anti-explosion cable joint, fully can fill clay, construction quality is high, good seal performance; Efficiently solve cable seal and district's problem of altering of causing, possess sealing property strong, the features such as fire protecting performance is high, and security performance is good.

Description

A kind of anti-explosion cable joint sealing method

Technical field

The present invention relates to a kind of cable joint installation method, particularly a kind of anti-explosion cable joint sealing method.

Background technology

Cable joint Cablejoin has another name called Glan Cablegland, be widely used in plant equipment electrically, the fixing and protection of the electric wire of marine electrical equipment, corrosion protection equipment.

Its Main Function is the fastening of cable and sealing, also has the electric Glan that some Code in Hazardous Special Locations use.As the Waterproof connector of cable of shielding, be suitable for the cable with screen; Be applicable to the anti-explosion cable water joint etc. of the deathtraps such as mine.

In marine oil and gas and petrochemical iy produced process, relate to dangerous Production Regional.Domestic for explosion-proof area, use common explosion proof Glan, but when requirement of explosion proof is high, common Glan locking cable cannot reach effective sealing, and particularly multicore cable often cannot seal completely, gap is there is between core and core, after peelling off exterior insulation cover, so just likely form explosive source (gas, liquid, solid) alter district (as Fig. 1), to technique produce thread environment cause potential risk.

Novel explosion-proof Grange utilizes the sealing of filling clay to avoid above-mentioned defect of altering district, but also there is certain defect: namely adopt the new type explosion proof Glan of filling clay sealing when constructing, direct-on-line core line outlet plug clay, easily there is part filler incomplete, be difficult to ensure construction quality, and under burning sun direct projection, can produce crack, useful life is short.

Summary of the invention

The technical problem to be solved in the present invention be to provide a kind of fill clay completely, the anti-explosion cable joint sealing method of good seal performance.

For solving the problems of the technologies described above, technical scheme of the present invention is: a kind of anti-explosion cable joint sealing method, its innovative point is: the anti-explosion cable joint of employing mainly comprises an outer Glan body, this outer Glan body is a tubular body with step-like endoporus A, and the tubular body inner surface of this endoporus A macropore side arranges internal thread; In one, this interior Glan body of Glan body is a tubular body with step-like endoporus B, and the tubular body outer surface of this endoporus B macropore side arranges the external screw thread matched with described internal thread; One inner sleeve, this inner sleeve one end has an outer conical surface, and this end is equipped with a locking ring set, and this binding ring cover has an internal conical surface matched with outer conical surface; The top of outer Glan body and interior Glan body bottom are connected by internal and external screw thread and are clamped in the outer conical surface of inner sleeve by the internal conical surface of locking ring set;

Anti-explosion cable joint sealing method:

Step S1: first outward winding interior Glan body and outer Glan body, is divided into outer Glan body, locking ring set by anti-explosion cable joint, and inner sleeve, interior Glan body two parts, and then makes the internal conical surface of locking ring set leave the outer conical surface of inner sleeve;

Step S2: from outer to inner successively cable insulation, armour, sheath are pushed aside, and armature of cable layer, sheath and core are stretched out along on cable axle successively;

Step S3: by the front end sheath of cable successively through stretching in inner sleeve after outer Glan body, locking ring set, pushing armour aside, the armour outside sheath being then enclosed within the outer conical surface of inner sleeve bottom;

Step S4: tighten outer Glan body and interior Glan body, outer Glan body coordinates with interior Glan body and is pressed in the outer conical surface of inner sleeve by binding ring cover, and then clamps armour by locking ring set internal conical surface and inner sleeve outer conical surface;

Step S5: again outward winding outer Glan body and interior Glan body, make each strand core expose inner sleeve; Guarantee that binding ring is locked simultaneously and be tight against inner sleeve, armour is evenly distributed in the outer conical surface of inner sleeve;

Step S6: be that radiation evenly separates by each core;

Step S7: start to fill clay in the gap between inner sleeve and core, contacts until core does not independently exist with other core in clay;

Step S8: core is smoothed out with the fingers directly, clay is fully filled, and clay front end is pinched tapered;

Step S9: outer Glan body and interior Glan body are tightened, is extruded into interior Glan body line outlet completely, and additional clay is cleaned out by clay;

Step S10: the anti-explosion cable joint of filling after clay is left standstill 50 ~ 65Min;

Step S11: outward winding again outer Glan body and interior Glan body, checks the clay exposed outside inner sleeve, guarantees that the clay sealing between inner sleeve, core is complete;

Step S12: re-assembly outer Glan body and interior Glan body, and twist with spanner, make its complete locking cable;

Step S13: the clay of anti-explosion cable joint at normal temperatures 4 ~ 5h solidifies completely, completes installation.

The invention has the advantages that: in anti-explosion cable joint, fully can fill clay, construction quality is high, good seal performance; Efficiently solve cable seal and district's problem of altering of causing, possess sealing property strong, the features such as fire protecting performance is high, and security performance is good, there is good application prospect in the place high in the deathtrap such as petrochemical industry, oil-gas field development requirement of explosion proof.

Accompanying drawing explanation

Fig. 1 is anti-explosion cable joint design schematic diagram in the present invention.

Fig. 2 ~ 8 are anti-explosion cable joint sealing construction schematic diagram in the present invention.

Embodiment

Fig. 1 shows the anti-explosion cable joint design adopted in the present invention, and it comprises

One outer Glan body 1, this outer Glan body 1 is a tubular body with step-like endoporus A, and the tubular body inner surface of this endoporus A macropore side arranges internal thread.

Glan body 2 in one, this interior Glan body 2 is a tubular body with step-like endoporus B, and the tubular body outer surface of this endoporus B macropore side arranges the external screw thread matched with described internal thread.

One inner sleeve 3, this inner sleeve 3 one end has an outer conical surface, and this end is equipped with a locking ring set 4, and this locking ring set 4 has an internal conical surface matched with outer conical surface; The top of outer Glan body 1 and interior Glan body 2 bottom are connected by internal and external screw thread and are clamped in the outer conical surface of inner sleeve 3 by the internal conical surface of locking ring set 4.

Anti-explosion cable joint sealing method:

Step S1: first outward winding interior Glan body 2 and outer Glan body 1, is divided into outer Glan body 1, locking ring set 4 by anti-explosion cable joint, and inner sleeve 3, interior Glan body 2 two parts, and then makes the internal conical surface of locking ring set 4 leave the outer conical surface of inner sleeve 3.

Step S2: as shown in Figure 2, from outer to inner pushes aside cable insulation 5, armour 6, sheath 7 successively, and armature of cable layer 6, sheath 7 and core 8 are stretched out along on cable axle successively.

Step S3: as shown in Figure 3, stretches into the front end sheath 7 of cable in inner sleeve 3 through after outer Glan body 1, locking ring set 4 successively, pushes armour 6 aside, be enclosed within the outer conical surface of inner sleeve 3 bottom by the armour outside sheath 76.

Step S4: as shown in Figure 4, tightens outer Glan body 1 and interior Glan body 2, and outer Glan body 1 coordinates with interior Glan body 2 and is pressed on locking ring set 4 in the outer conical surface of inner sleeve 3, and then clamps armour 6 by locking ring set 4 internal conical surface and inner sleeve 3 outer conical surface.

Step S5: as shown in Figure 5, again outward winding outer Glan body 1 and interior Glan body 2, make each strand core 8 expose inner sleeve 3; Guarantee that locking ring set 4 tightly props up inner sleeve 3, armour 6 is evenly distributed in the outer conical surface of inner sleeve 3 simultaneously.

Step S6: as shown in Figure 6, evenly separates each core 8 in radiation.

Step S7: start to fill clay 9 in the gap between inner sleeve 3 and core 8, contacts until core does not independently exist with other core in clay 9.

Step S8: as shown in Figure 7, smoothes out with the fingers core 8 directly, clay is fully filled, and pinches tapered by clay 9 front end.

Step S9: as shown in Figure 8, tightens outer Glan body 1 and interior Glan body 2, clay 9 is extruded into completely interior Glan body 2 line outlet, and additional clay is cleaned out.

Step S10: the anti-explosion cable joint of filling after clay is left standstill 50 ~ 65Min.

Step S11: outward winding again outer Glan body 1 and interior Glan body 2, checks the clay 9 exposed outside inner sleeve 3, guarantees that the clay 9 between inner sleeve 3, core 8 seals completely.

Step S12: re-assembly outer Glan body 1 and interior Glan body 2, and twist with spanner, make its complete locking cable.

Step S13: the clay of anti-explosion cable joint at normal temperatures 4 ~ 5h solidifies completely, completes installation.

Claims (1)

1. an anti-explosion cable joint sealing method, is characterized in that: the anti-explosion cable joint of employing mainly comprises an outer Glan body, and this outer Glan body is a tubular body with step-like endoporus A, and the tubular body inner surface of this endoporus A macropore side arranges internal thread; In one, this interior Glan body of Glan body is a tubular body with step-like endoporus B, and the tubular body outer surface of this endoporus B macropore side arranges the external screw thread matched with described internal thread; One inner sleeve, this inner sleeve one end has an outer conical surface, and this end is equipped with a locking ring set, and this binding ring cover has an internal conical surface matched with outer conical surface; The top of outer Glan body and interior Glan body bottom are connected by internal and external screw thread and are clamped in the outer conical surface of inner sleeve by the internal conical surface of locking ring set;

Anti-explosion cable joint sealing method:

Step S1: first outward winding interior Glan body and outer Glan body, is divided into outer Glan body, locking ring set by anti-explosion cable joint, and inner sleeve, interior Glan body two parts, and then makes the internal conical surface of locking ring set leave the outer conical surface of inner sleeve;

Step S2: from outer to inner successively cable insulation, armour, sheath are pushed aside, and armature of cable layer, sheath and core are stretched out along on cable axle successively;

Step S3: by the front end sheath of cable successively through stretching in inner sleeve after outer Glan body, locking ring set, pushing armour aside, the armour outside sheath being then enclosed within the outer conical surface of inner sleeve bottom;

Step S4: tighten outer Glan body and interior Glan body, outer Glan body coordinates with interior Glan body and is pressed in the outer conical surface of inner sleeve by binding ring cover, and then clamps armour by locking ring set internal conical surface and inner sleeve outer conical surface;

Step S5: again outward winding outer Glan body and interior Glan body, make each strand core expose inner sleeve; Guarantee that binding ring is locked simultaneously and be tight against inner sleeve, armour is evenly distributed in the outer conical surface of inner sleeve;

Step S6: be that radiation evenly separates by each core;

Step S7: start to fill clay in the gap between inner sleeve and core, contacts until core does not independently exist with other core in clay;

Step S8: core is smoothed out with the fingers directly, clay is fully filled, and clay front end is pinched tapered;

Step S9: outer Glan body and interior Glan body are tightened, is extruded into interior Glan body line outlet completely, and additional clay is cleaned out by clay;

Step S10: the anti-explosion cable joint of filling after clay is left standstill 50 ~ 65Min;

Step S11: outward winding again outer Glan body and interior Glan body, checks the clay exposed outside inner sleeve, guarantees that the clay sealing between inner sleeve, core is complete;

Step S12: re-assembly outer Glan body and interior Glan body, and twist with spanner, make its complete locking cable;

Step S13: the clay of anti-explosion cable joint at normal temperatures 4 ~ 5h solidifies completely, completes installation.