CN201590639U - Explosion-proof cable outdoor terminal - Google Patents
Explosion-proof cable outdoor terminal Download PDFInfo
- Publication number
- CN201590639U CN201590639U CN2009202826237U CN200920282623U CN201590639U CN 201590639 U CN201590639 U CN 201590639U CN 2009202826237 U CN2009202826237 U CN 2009202826237U CN 200920282623 U CN200920282623 U CN 200920282623U CN 201590639 U CN201590639 U CN 201590639U
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- Prior art keywords
- explosion
- pressure disc
- rupture pressure
- proof
- tail pipe
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- Expired - Lifetime
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Abstract
The utility model relates to a high-voltage and ultrahigh-voltage cable terminal accessory, in particular to an explosion-proof cable outdoor terminal which comprises a sleeve (1), a flange (2), a cable (5), a sealing device (7), a stress cone (8), insulating oil (9), a tail pipe (17) and an outgoing line rod (6) connected with the upper part of the cable (5), wherein the sealing device (7) comprises a sealing cover (3) connected with the top end of the sleeve (1); the outgoing line rod (6) extends outside from a middle hole of the sealing cover (3); the tail pipe (17) comprises a tail pipe bottom plate (19); the sealing cover (3) is provided with an upper explosion-proof hole (3-1) which is provided with an upper explosion-proof film (10); and the tail pipe bottom plate (19) is provided with a lower explosion-proof hole (19-1), and a lower explosion-proof film (20) is arranged under the lower explosion-proof hole (19-1). The explosion-proof cable outdoor terminal has the advantages of simple structure, safety and reliability, and good explosion-proof effect.
Description
Technical field
The utility model relates to a kind of high pressure, extra-high-tension cable terminal attachment, particularly a kind of explosion-proof type cable outdoor terminal.
Background technology
In the high pressure of 66kV and the above electric pressure of 66kV, the ultrahigh voltage power cable connected system, the cable outdoor terminal is main electric cable accessories, can realize that by it cable is connected with the reliable of overhead transmission line.The main at present a kind of cable filling type outdoor terminal that uses, referring to Fig. 4, it comprises sleeve pipe, flange, cable, sealing device, stress cone and insulating oil and tail pipe, also comprises the outlet bar that is connected with cable top, insulating oil is contained in the sleeve pipe, and stress cone is contained on the interior cable of sleeve pipe.Sealing device comprises the seal cover that is connected with cannula tip, and the outlet bar stretches out from the seal cover interstitial hole, and tail pipe includes the tail pipe base plate.This cable filling type outdoor terminal mainly exists following defective: because design or defective mounting, sometimes the abnormal work situation can appear in cable or annex, under this abnormal work situation, the pressure of cable filling type outdoor terminal inside can increase rapidly, when pressure is enough big, will produce blast, thereby cause the damage of casualties and equipment on every side, particularly sleeve pipe is generally porcelain bushing, and the splash loss of the personal injury that brought and property of porcelain material blast is more serious.Therefore present this cable filling type outdoor terminal exists great potential safety hazard and risk.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, provide a kind of simple in structure, explosion-proof effect good, safe and reliable explosion-proof type cable outdoor terminal.
Realize that the above-mentioned purpose technical scheme is: a kind of explosion-proof type cable outdoor terminal, comprise sleeve pipe, flange, cable, sealing device, stress cone and insulating oil and tail pipe, also comprise the outlet bar that is connected with cable top, sealing device comprises the seal cover that is connected with cannula tip, the outlet bar stretches out from the seal cover interstitial hole, tail pipe includes the tail pipe base plate, having explosionproof hole on the seal cover, be provided with rupture pressure disc above the last explosionproof hole, be provided with down rupture pressure disc below the explosionproof hole under on the tail pipe base plate, having, following explosionproof hole.
Further, described upward rupture pressure disc is clamped in two to be gone up between the rupture pressure disc clamping flange, and the hole above the last rupture pressure disc clamping flange is relative with last explosionproof hole.
Further, described rupture pressure disc down is clamped between two following rupture pressure disc clamping flanges, and the hole above the following rupture pressure disc clamping flange is relative with following explosionproof hole.
Further, described any one making of going up in rupture pressure disc employing stainless steel, copper, three kinds of materials of aluminium.
Further, described rupture pressure disc down adopts any one making in stainless steel, copper, three kinds of materials of aluminium.
Further, described going up between rupture pressure disc clamping flange and the seal cover is provided with sealing ring.
Further, be provided with sealing ring between described rupture pressure disc clamping flange down and the tail pipe base plate.
After adopting technique scheme, have a lot of benefits: (1), simple in structure, explosion-proof effect is good, and is safe and reliable.The utility model has carried out improving innovation on the basis of existing structure, having explosionproof hole on the seal cover, be provided with rupture pressure disc above the last explosionproof hole, has time explosionproof hole on the tail pipe base plate, is provided with down rupture pressure disc below the following explosionproof hole.This structure makes the utility model the abnormal work situation occur at cable or annex, inner pressure increases when acquiring a certain degree rapidly, the last rupture pressure disc at last explosionproof hole place plays the effect of venting of dust explosion mouth, the following rupture pressure disc at following explosionproof hole place also plays the effect of venting of dust explosion mouth, after last rupture pressure disc and following rupture pressure disc are washed open, can carry out instantaneous pressure release, sleeve pipe with certain intensity etc. is not blasted, play explosion-proof.The utility model is simple in structure, and is easy for installation, safe and reliable, has explosion-proof venting of dust explosion function, eliminated potential safety hazard, and explosion-proof effect is good, and venting of dust explosion is rapid, avoided personnel's the injures and deaths and the loss of property; (2), cost is low.Just often internal pressure is little owing to the utility model, generally have only several kilograms, and the blast pressure value is very big, reach the hundreds of kilogram, it is big in pressure difference just often and when blasting to be rupture pressure disc, and the rupture pressure disc that satisfies this requirement is easy to manufacture, makes the utility model low cost of manufacture.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the local structure for amplifying schematic diagram on the utility model top;
Fig. 3 is the local structure for amplifying schematic diagram of the utility model bottom;
Fig. 4 is a prior art cable filling type outdoor terminal structural representation.
Embodiment
Below in conjunction with drawings and Examples the utility model is described in further detail.
Embodiment one
As shown in Figure 1 to Figure 3, a kind of explosion-proof type cable outdoor terminal, comprise sleeve pipe 1, flange 2, grading shield 4, cable 5, sealing device 7, stress cone 8 and insulating oil 9 and tail pipe 17, also comprise outlet bar 6 with cable 5 top Joints, also include tail pipe 17 and wrapped band 18, insulating oil 9 is contained in the sleeve pipe 1, and stress cone 8 is contained on the cable 5 in the sleeve pipe 1.Flange 2 includes upper flange 2-1 and mounting flange 2-2, and post insulator 25 is housed on the mounting flange 2-2.Sealing device 7 comprises and the seal cover 3 of sleeve pipe 1 top Joint, and cover plate 14 is housed on the seal cover 3, and sealing device 7 also comprises the sealing ring 15 that is arranged on outlet bar 6 and seal cover 3 joints, the sealing ring 16 that is arranged on seal cover 3 and sleeve pipe 1 joint.Outlet bar 6 stretches out from seal cover 3 interstitial holes.Tail pipe 17 includes tail pipe base plate 19 and tail pipe cover 23, and tail pipe 17 is by tail pipe base plate 19 and mounting flange 2-2 Joint.Having explosionproof hole 3-1 on the seal cover 3, be provided with rupture pressure disc 10 above the last explosionproof hole 3-1, on tail pipe base plate 19, have explosionproof hole 19-1 down, be provided with down rupture pressure disc 20 below the following explosionproof hole 19-1, last rupture pressure disc 10 and following rupture pressure disc 20 all adopt stainless steel material to make, last rupture pressure disc 10 and following rupture pressure disc 20 are a circular sheet, the centre of circular sheet has cross line style weak spot, when pressure increases rapidly under the abnormal conditions such as interior insulation breakdown, being easy to will to go up rupture pressure disc 10 in weak spot washes open, also be easy to will descend rupture pressure disc 20 to wash open in weak spot, the effect that internal pressure is descended rapidly is better.Last rupture pressure disc 10 is clamped in two to be gone up between the rupture pressure disc clamping flange 11, and the hole 11-1 above the last rupture pressure disc clamping flange 11 is relative with last explosionproof hole 3-1, and rupture pressure disc clamping flange 11 passes through screw 13 Joints with seal cover 3.Be provided with sealing ring 12 between last rupture pressure disc clamping flange 11 and the seal cover 3, sealing ring 12 is contained in a following lower surface of going up rupture pressure disc clamping flange 11 and locates in the groove.Following rupture pressure disc 20 is clamped between two following rupture pressure disc clamping flanges 21, and the hole 21-1 above the following rupture pressure disc clamping flange 21 is relative with following explosionproof hole 19-1, and following rupture pressure disc clamping flange 21 passes through screw 22 Joints with tail pipe base plate 19.Be provided with sealing ring 24 between following rupture pressure disc clamping flange 21 and the tail pipe base plate 19, in the upper end surface groove of a following rupture pressure disc clamping flange 21 of sealing ring 24 top loadings.
Embodiment two
As shown in Figure 1 to Figure 3, present embodiment and embodiment one are basic identical, and different is to go up rupture pressure disc 10 all to adopt copper product to make with following rupture pressure disc 20.
Embodiment three
As shown in Figure 1 to Figure 3, present embodiment and embodiment one are basic identical, and different is to go up rupture pressure disc 10 all to adopt aluminum to make with following rupture pressure disc 20.
In addition to the implementation, the rupture pressure disc 10 of going up of the present utility model also can adopt other material with following rupture pressure disc 20, and the quantity that the utility model has explosionproof hole 3-1 and following explosionproof hole 19-1 can be provided with according to the requirement of satisfying explosion venting area.
The utility model is not limited to the foregoing description, and the technical scheme that all employings are equal to replacement or equivalence replacement formation all belongs to the claimed scope of the utility model.
Claims (7)
1. explosion-proof type cable outdoor terminal, comprise sleeve pipe (1), flange (2), cable (5), sealing device (7), stress cone (8) and insulating oil (9) and tail pipe (17), also comprise the outlet bar (6) that is connected with cable (5) top, sealing device (7) comprises the seal cover (3) that is connected with sleeve pipe (1) top, outlet bar (6) stretches out from seal cover (3) interstitial hole, tail pipe (17) includes tail pipe base plate (19), it is characterized in that: on seal cover (3), have explosion-proof (3-1), be provided with rupture pressure disc (10) above the last explosionproof hole (3-1), be provided with down rupture pressure disc (20) below the explosionproof hole (19-1) under on tail pipe base plate (19), having, following explosionproof hole (19-1).
2. explosion-proof type cable outdoor terminal according to claim 1, it is characterized in that: described upward rupture pressure disc (10) is clamped in two to be gone up between the rupture pressure disc clamping flange (11), and the hole (11-1) above the last rupture pressure disc clamping flange (11) is relative with last explosion-proof (3-1).
3. explosion-proof type cable outdoor terminal according to claim 1, it is characterized in that: described rupture pressure disc (20) down is clamped between two following rupture pressure disc clamping flanges (21), and the hole (21-1) above the following rupture pressure disc clamping flange (21) is relative with following explosion-proof (19-1).
4. explosion-proof type cable outdoor terminal according to claim 1 is characterized in that: described any one making of going up in rupture pressure disc (10) employing stainless steel, copper, three kinds of materials of aluminium.
5. explosion-proof type cable outdoor terminal according to claim 1 is characterized in that: described rupture pressure disc (20) down adopts any one making in stainless steel, copper, three kinds of materials of aluminium.
6. explosion-proof type cable outdoor terminal according to claim 2 is characterized in that: described going up between rupture pressure disc clamping flange (11) and the seal cover (3) is provided with sealing ring (12).
7. explosion-proof type cable outdoor terminal according to claim 3 is characterized in that: be provided with sealing ring (24) between described rupture pressure disc clamping flange (21) down and the tail pipe base plate (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202826237U CN201590639U (en) | 2009-12-25 | 2009-12-25 | Explosion-proof cable outdoor terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202826237U CN201590639U (en) | 2009-12-25 | 2009-12-25 | Explosion-proof cable outdoor terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201590639U true CN201590639U (en) | 2010-09-22 |
Family
ID=42750433
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202826237U Expired - Lifetime CN201590639U (en) | 2009-12-25 | 2009-12-25 | Explosion-proof cable outdoor terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201590639U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106998053A (en) * | 2017-05-26 | 2017-08-01 | 国网天津市电力公司 | The method of production of outdoor cable terminal protection device |
-
2009
- 2009-12-25 CN CN2009202826237U patent/CN201590639U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106998053A (en) * | 2017-05-26 | 2017-08-01 | 国网天津市电力公司 | The method of production of outdoor cable terminal protection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: JIANGSU ANKURA SMART TRANSMISSION ENGINEERING TECH Free format text: FORMER NAME: JIANGSU ANKURA EHV CABLE ACCESSORIES CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 213333 Tianmu Lake Industrial Park, Liyang Economic Development Zone, Jiangsu, China Patentee after: Jiangsu Ankura Smart Transmission Engineering Technology Co., Ltd. Address before: 213333 Tianmu Lake Industrial Park, Liyang Economic Development Zone, Jiangsu, China Patentee before: Jiangsu Ankura EHV Cable Accessories Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100922 |