CN218847443U

CN218847443U - Power cable intermediate head state on-line monitoring equipment

Info

Publication number: CN218847443U
Application number: CN202223595972.9U
Authority: CN
Inventors: 张强; 冯彪; 陈涛
Original assignee: Sichuan Zhongdi Electric Power Engineering Co ltd
Current assignee: Sichuan Zhongdi Electric Power Engineering Co ltd
Priority date: 2022-12-30
Filing date: 2022-12-30
Publication date: 2023-04-11
Anticipated expiration: 2032-12-30

Abstract

The application relates to power cable intermediate head state on-line monitoring equipment, which comprises a shell and a temperature detector for monitoring temperature, wherein the shell comprises a first shell and a second shell, the first shell is hinged with the second shell, the first shell and the second shell are fixedly connected through a fixing component, the temperature detector is arranged on the first shell, the second shell is provided with a bearing block for being jointed with a cable, the first shell is provided with a sliding block in a sliding manner along the direction close to or far away from the bearing block, the sliding block and the bearing block are both used for being abutted against the cable, and the first shell is provided with a sliding piece for driving the sliding block to slide; the first shell and the second shell are buckled on the cable and the middle joint, and when the cables with different diameters face each other, the sliding block can be driven by the sliding piece to move, so that the sliding block and the bearing block can clamp and fix the cables.

Description

Power cable intermediate head state on-line monitoring equipment

Technical Field

The application relates to the technical field of power monitoring equipment, in particular to power cable intermediate head state on-line monitoring equipment.

Background

The cable intermediate head is usually arranged in a cable bridge, and once the cable intermediate head catches fire, the cable intermediate head causes great harm to other peripheral operating cable lines, facilities and personnel, even can cause the occurrence of secondary accidents, and further enlarges the power failure accident range and brings great loss to various large enterprises and factories. In order to ensure the safety of the power system, a monitoring device is needed to monitor the temperature of the intermediate joint.

Chinese patent with publication number CN209282805U discloses an explosion-proof fire-extinguishing and state-monitoring device for a cable intermediate joint, which comprises an upper shell, a lower shell and a monitoring fire-extinguishing device; the upper shell is provided with a pressure relief plug; the monitoring fire extinguishing device comprises a mounting bracket, a control unit and an aerosol fire extinguishing unit; a water level sensor is arranged below one end of the lower shell; the aerosol fire extinguishing unit is fixed on the inner wall of the upper shell and is positioned at one end, close to the control unit, of the upper shell; the aerosol fire extinguishing unit is connected with a temperature control switch unit; and the water level sensor, the temperature control switch unit and the aerosol fire extinguishing unit are electrically connected with the control unit. The explosion-proof fire extinguishing and state monitoring device for the cable intermediate joint can reduce the damage caused by the explosion of the cable intermediate joint, and has higher reliability and safety.

With the related art described above, when facing cables of different diameters, the cables of different diameters cannot be clamped, resulting in a low applicability of the device.

SUMMERY OF THE UTILITY MODEL

In order to improve the suitability to a certain extent, the application provides a power cable intermediate head state on-line monitoring equipment.

The application provides a power cable intermediate head state on-line monitoring equipment adopts following technical scheme:

the utility model provides a power cable intermediate head state on-line monitoring equipment, includes the shell and is used for monitoring the temperature's temperature-sensing detector, the shell includes first casing and second casing, first casing is articulated with the second casing, first casing and second casing pass through fixed subassembly fixed connection, the temperature-sensing detector sets up in first casing, the second casing is provided with and is used for accepting the piece with the cable laminating, first casing slides along the direction that is close to or keeps away from and is provided with the sliding block, sliding block and bearing piece all are used for with the cable butt, first casing is provided with and is used for ordering about the gliding slider of sliding block.

Through adopting above-mentioned technical scheme, detain first casing and second casing on cable and middle joint, when facing the cable of different diameters, the accessible slider drives the sliding block and removes for the sliding block with accept the purpose that the piece played the centre gripping fixed cable, thereby the temperature-sensing detector of being convenient for can carry out temperature monitoring to the cable joint, is convenient for carry out the centre gripping to the cable of different diameters, thereby can improve the suitability of device to a certain extent.

Optionally, the sliding piece is a screw, the screw thread penetrates through the first shell, and the screw is connected with the sliding block through the buffer component.

Through adopting above-mentioned technical scheme, through rotating the screw rod, screw rod and first casing threaded connection make the screw rod remove along self axis direction to realize the gliding purpose of sliding block, buffering subassembly is favorable to preventing the too big bad cable of sliding block range of motion.

Optionally, the fixed thickened block that is provided with of first casing, set up the storage tank that is used for holding buffering subassembly in the thickened block, buffering subassembly includes slide bar, briquetting and buffer spring, slide bar and briquetting all slide along the slip direction of sliding block and set up in the storage tank, the one end of screw rod runs through into storage tank and briquetting butt, the one end and briquetting fixed connection, the other end of slide bar link up storage tank and sliding block fixed connection, the slide bar is located to the buffer spring cover, buffer spring's one end and the diapire butt of briquetting butt, the other end and storage tank.

Through adopting above-mentioned technical scheme, when the screw rod removed along self axis direction, thereby the screw rod promoted the slide bar with the briquetting butt and slides, and buffer spring hinders the slide bar and slides, is favorable to reducing the gliding range of slide bar to reduce the sliding amplitude of sliding block when the screw rod rotates, prevent the too big bad cable of sliding block motion amplitude.

Optionally, the bearing block is fixedly provided with a first elastic pad, and the first elastic pad is used for being abutted to the cable.

Through adopting above-mentioned technical scheme, first cushion is favorable to reducing the degree of wear of cable and bearing piece, is convenient for protect the cable.

Optionally, the fixed fire extinguishing tank that is used for holding the fire extinguishing agent that is provided with of first casing, fire extinguishing tank intercommunication is provided with the discharging pipe, the discharging pipe is provided with the solenoid valve, the discharging pipe is used for letting in the fire extinguishing agent to the shell.

Through adopting above-mentioned technical scheme, when the temperature-sensing detector detects the cable joint high temperature when catching fire, the staff can start the solenoid valve and let in the fire extinguishing agent in the opposite direction shell and put out a fire.

Optionally, the discharging pipe is communicated with a branch pipe, the branch pipe extends along the length direction of the shell, and the branch pipe is communicated with a plurality of nozzles along the length direction of the branch pipe.

Through adopting above-mentioned technical scheme, in the fire extinguishing agent in the discharge tube sprayed into the shell along branch pipe and shower nozzle, be favorable to increasing the scope of putting out a fire of fire extinguishing agent, be favorable to improving fire control effect.

Optionally, the fixing assembly comprises a first lug plate, a second lug plate and a connecting bolt, the first lug plate is fixedly arranged on the first shell, the second lug plate is fixedly arranged on the second shell, and the connecting bolt is threaded in the first lug plate and the second lug plate simultaneously.

Through adopting above-mentioned technical scheme, the connecting bolt screw thread is worn to establish in first otic placode and second otic placode, is favorable to realizing dismantling of first casing and second casing and is connected.

Optionally, the side walls of the first shell and the second shell which are far away from each other are provided with heat insulation layers.

Through adopting above-mentioned technical scheme, under high temperature weather, the insulating layer is favorable to reducing the heat in the external entering shell to the high temperature in the shell under the prevention high temperature weather.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the first shell and the second shell are buckled on the cable and the middle joint, when facing cables with different diameters, the sliding block can be driven by the sliding part to move, so that the sliding block and the bearing block can achieve the purpose of clamping and fixing the cable, the temperature detector can conveniently monitor the temperature of the cable joint, the cables with different diameters can be conveniently clamped, and the applicability of the device can be improved to a certain extent;

2. in high-temperature weather, the heat insulation layer is beneficial to reducing the heat entering the shell from the outside, so that the overhigh temperature in the shell in the high-temperature weather is prevented;

3. when the temperature-sensitive detector detects that the temperature of the cable joint is too high and the fire is on fire, the worker can start the electromagnetic valve to inject the fire extinguishing agent into the shell to extinguish the fire.

Drawings

FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present application;

FIG. 2 is a cross-sectional view of the overall structure of an embodiment of the present application;

FIG. 3 is a schematic structural diagram of a temperature-sensing detector, a controller and a solenoid valve according to an embodiment of the present application;

FIG. 4 is a schematic structural diagram of a slider and a buffer assembly according to an embodiment of the present application.

Description of the reference numerals: 11. a cable; 12. an intermediate joint; 13. a fire extinguishing tank; 14. a discharge pipe; 141. a branch pipe; 142. a spray head; 15. a temperature-sensitive detector; 16. a controller; 17. an electromagnetic valve; 2. a housing; 21. a first housing; 211. a support plate; 22. a second housing; 23. a screw; 231. rotating the sleeve; 24. thickening blocks; 241. a containing groove; 25. a push block; 3. a fixing assembly; 31. a first ear plate; 32. a second ear panel; 33. a connecting bolt; 34. a gasket; 41. a bearing block; 411. a first elastic pad; 42. a slider; 421. a second elastic pad; 5. a buffer assembly; 51. a slide bar; 52. pressing into blocks; 53. a buffer spring.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses power cable intermediate head state on-line monitoring equipment.

Referring to fig. 1, an on-line monitoring device for the state of an intermediate joint of a power cable comprises a housing 2 covering a cable 11 and an intermediate joint 12, and a temperature-sensitive detector 15 for monitoring temperature, wherein the temperature-sensitive detector 15 is a conventional technology and is not described herein again. The outer shell 2 comprises a first shell 21 and a second shell 22, and the side walls of the first shell 21 and the second shell 22 which are far away from each other are coated with heat insulation layers. The heat insulation layer is made of a foamed ceramic material, the foamed ceramic material is made of an inorganic ceramic material through high-temperature roasting, and the fireproof performance is excellent. A gasket 34 is fixedly arranged on the side wall of the first housing 21 close to the second housing 22, and the side wall of the gasket 34 far away from the first housing 21 is abutted against the second housing 22.

Referring to fig. 1, one side edge of the first casing 21 is hinged to one side edge of the second casing 22, and the first casing 21 and the second casing 22 are fixedly connected by the fixing assembly 3. The fixing component 3 comprises a first ear plate 31, a second ear plate 32 and a connecting bolt 33, the first ear plate 31 is fixedly arranged on the first shell 21, the first ear plate 31 is arranged on the side of the hinge point far away from the first shell 21 and the second shell 22, the second ear plate 32 is fixedly arranged on the second shell 22, the second ear plate 32 is arranged on the side of the hinge point far away from the first shell 21 and the second shell 22, the sealing gasket 34 is arranged between the first ear plate 31 and the second ear plate 32, the first ear plate 31 and the second ear plate 32 are abutted to the sealing gasket 34, and the connecting bolt 33 is threaded in the first ear plate 31, the second ear plate 32 and the sealing gasket 34.

Referring to fig. 2 and 3, the temperature-sensitive detector 15 is disposed on a side wall of the first casing 21 close to the second casing 22, a receiving block 41 for being attached to the cable 11 is fixedly disposed on a side wall of the second casing 22 close to the first casing 21, the receiving block 41 is an arc-shaped block, the receiving block 41 is fixedly disposed with a first elastic pad 411, and the first elastic pad 411 is used for being abutted to the cable 11. First casing 21 slides along the direction that is close to or keeps away from to accept piece 41 and is provided with sliding block 42, and sliding block 42 sets up to the arc piece, and sliding block 42 all is used for with cable 11 butt with accepting piece 41, and sliding block 42 is close to the fixed second cushion 421 that is provided with of lateral wall of butt piece, and second cushion 421 and cable 11 butt. The first elastic pad 411 and the second elastic pad 421 are both made of a rubber material.

Referring to fig. 2 and 3, a fire extinguishing tank 13 for containing a fire extinguishing agent is fixedly arranged on the outer wall of the first shell 21, the fire extinguishing agent is liquid carbon dioxide, a discharge pipe 14 is arranged on the fire extinguishing tank 13 in a communicating manner, the discharge pipe 14 is provided with an electromagnetic valve 17, the discharge pipe 14 is communicated with the outer shell 2, and the discharge pipe 14 is used for introducing the fire extinguishing agent into the outer shell 2. The discharge pipe 14 is provided with a branch pipe 141 in communication, the branch pipe 141 extends along the length direction of the housing 2, the branch pipe 141 is provided with a plurality of spray heads 142 in communication along the length direction of the branch pipe 141, and the spray heads 142 are used for introducing fire extinguishing agent into the housing 2. The controller 16 is fixedly arranged on the first shell 21, the temperature-sensitive detector 15 is electrically connected with the controller 16, and the controller 16 controls the opening of the electromagnetic valve 17 after receiving a high-temperature signal sent by the temperature-sensitive detector 15.

Referring to fig. 3 and 4, the first housing 21 is provided with a sliding part for driving the sliding block 42 to slide, the sliding part is provided as a screw 23, the screw 23 is threaded through the first housing 21, a rotating sleeve 231 is fixedly sleeved at the top end of the screw 23 for facilitating rotation of the screw 23, and the screw 23 is connected with the sliding block 42 through the buffer assembly 5. First casing 21 is fixed to be provided with thickening piece 24, has seted up in thickening piece 24 and is used for holding the storage tank 241 of buffering subassembly 5, and buffering subassembly 5 includes slide bar 51, briquetting 52 and buffer spring 53, and slide bar 51 and briquetting 52 all slide along sliding block 42's slip direction and set up in storage tank 241, and the one end of screw rod 23 is run through into storage tank 241 and briquetting 52 butt, and screw rod 23 is close to the lateral wall rotating sleeve 231 of briquetting 52 and is equipped with ejector pad 25, ejector pad 25 and briquetting 52 butt. One end of the sliding rod 51 is fixedly connected with the pressing block 52, the other end of the sliding rod penetrates through the containing groove 241 and is fixedly connected with the side wall of the sliding block 42 far away from the bearing block 41, the buffer spring 53 is sleeved on the sliding rod 51, one end of the buffer spring 53 is abutted against the side wall of the pressing block 52 far away from the push block 25, and the other end of the buffer spring is abutted against the bottom wall of the containing groove 241.

The implementation principle of the power cable intermediate head state online monitoring equipment in the embodiment of the application is as follows: detain first casing 21 and second casing 22 on cable 11 and intermediate head 12, when facing the cable 11 of different diameters, accessible screw rod 23 drives sliding block 42 and removes for sliding block 42 plays the purpose of centre gripping fixed cable 11 with accepting piece 41, thereby the temperature-sensing detector 15 of being convenient for can carry out temperature monitoring to cable 11 joint, is convenient for carry out the centre gripping to the cable 11 of different diameters, thereby can improve the suitability of device to a certain extent.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides an online monitoring facilities of power cable intermediate head state which characterized in that: including shell (2) and temperature detector (15) that are used for monitoring the temperature, shell (2) are including first casing (21) and second casing (22), first casing (21) are articulated with second casing (22), first casing (21) and second casing (22) are through fixed subassembly (3) fixed connection, temperature detector (15) set up in first casing (21), second casing (22) are provided with and are used for accepting piece (41) with cable (11) laminating, first casing (21) slide along the direction that is close to or keeps away from to accept piece (41) and are provided with sliding block (42), sliding block (42) and accept piece (41) all are used for with cable (11) butt, first casing (21) are provided with and are used for ordering about the gliding slider of sliding block (42).

2. An on-line power cable intermediate joint status monitoring device according to claim 1, wherein: the sliding piece is a screw rod (23), the screw rod (23) penetrates through the first shell (21) in a threaded mode, and the screw rod (23) is connected with the sliding block (42) through the buffer component (5).

3. An on-line power cable intermediate joint status monitoring device according to claim 2, wherein: first casing (21) is fixed and is provided with thickened block (24), set up storage tank (241) that are used for holding buffering subassembly (5) in thickened block (24), buffering subassembly (5) are including slide bar (51), briquetting (52) and buffer spring (53), slide bar (51) and briquetting (52) all slide along the slip direction of sliding block (42) and set up in storage tank (241), the one end of screw rod (23) is run through into storage tank (241) and briquetting (52) butt, the one end and briquetting (52) fixed connection of slide bar (51), the other end run through storage tank (241) and sliding block (42) fixed connection, slide bar (51) are located in buffer spring (53) cover, the one end and briquetting (52) butt of buffer spring (53), the diapire butt of the other end and storage tank (241).

4. An on-line power cable intermediate joint status monitoring device according to claim 1, wherein: the bearing block (41) is fixedly provided with a first elastic pad (411), and the first elastic pad (411) is used for being abutted to the cable (11).

5. An on-line power cable intermediate joint status monitoring device according to claim 1, wherein: first casing (21) are fixed to be provided with extinguishing chamber (13) that are used for holding the fire extinguishing agent, extinguishing chamber (13) intercommunication is provided with discharging pipe (14), discharging pipe (14) are provided with solenoid valve (17), discharging pipe (14) are used for letting in the fire extinguishing agent in to shell (2).

6. An on-line power cable intermediate joint status monitoring device according to claim 5, wherein: the discharge pipe (14) is provided with a branch pipe (141) in a communicating mode, the branch pipe (141) extends along the length direction of the shell (2), and the branch pipe (141) is provided with a plurality of spray heads (142) in a communicating mode along the length direction of the branch pipe (141).

7. An on-line power cable intermediate joint status monitoring device according to claim 1, wherein: fixed subassembly (3) include first otic placode (31), second otic placode (32) and connecting bolt (33), first otic placode (31) are fixed to be set up in first casing (21), second otic placode (32) are fixed to be set up in second casing (22), connecting bolt (33) screw thread is worn to locate in first otic placode (31) and second otic placode (32) simultaneously.

8. An on-line power cable intermediate joint status monitoring device according to claim 1, wherein: the side walls of the first shell (21) and the second shell (22) which are far away from each other are provided with heat insulation layers.