CN113937689B

CN113937689B - Nested formula power cable fire protection device

Info

Publication number: CN113937689B
Application number: CN202111138044.7A
Authority: CN
Inventors: 郭梦楠; 闫学义; 李田
Original assignee: State Grid Henan Power Co Qinyang Power Supply Co
Current assignee: State Grid Henan Power Co Qinyang Power Supply Co
Priority date: 2021-09-27
Filing date: 2021-09-27
Publication date: 2023-01-24
Anticipated expiration: 2041-09-27
Also published as: CN113937689A

Abstract

The invention discloses a nested power cable fireproof protection device, which comprises: the wire clamping port is formed in the nesting seat, a wire inlet is formed in one side of the wire clamping port, cables are fixedly clamped among the nesting seats, and fixing components used for connecting the outside are connected to two sides of each nesting seat; the sealing assembly comprises a sealing plate and a sliding cavity, and the sliding cavity is formed in the embedding seat; the fire extinguishing assembly is fixedly installed at the upper end of one side of keeping away from the wire inlet on the embedded seat, the fire extinguishing assembly comprises a fire extinguishing tank, a spray head and a buckle cover, the mounting groove is formed in the upper side of the embedded seat, the fire extinguishing tank is clamped inside the mounting groove and is arranged at two ends of the fire extinguishing tank symmetrically, one side of the buckle cover is rotatably connected to one side of the embedded seat, and the buckle cover is arranged on the fire extinguishing tank. When the flame is generated, the flame can be processed in time, the cable and the nesting seat are protected, and the cable is prevented from being damaged by fire.

Description

Nested formula power cable fire protection device

Technical Field

The invention relates to the technical field of power cables, in particular to a nested power cable fireproof protection device.

Background

The cable is an electric energy or signal transmission device, usually it is made up of several or several groups of wire, the cable includes many, the electric power cable among them is mainly used in the strong current electric energy transmission in the power generating, distributing, transporting, changing, power supply line, the electric current passed is large (dozens of amperes to several kiloamperes), the voltage is high (220V to 500kV and above), the use range of the electric power cable is in the electric power system, information transmission, in the instrument system, along with the rapid development of the electric power cable project, the higher requirement put forward to the cable protection, the cable protective sleeve is made by shot blasting pretreatment, dipping plastic or coating, heating and solidifying process of polyethylene PE and high-quality steel pipe to use the protective sleeve of the cable. It is one of the most commonly used electrically insulating tubes for protecting wires and cables.

Most of power cables are buried underground, but some cables need to be arranged on the ground and erected on a wall of a building due to different use modes, but most of the existing ground power cables are fixedly connected through connecting devices in the installation process, and the connecting devices are not only complicated in installation steps, but also cannot randomly change the fixed shape of the cables when the cables are installed, and are poor in fire resistance, so that the ground cables cannot be protected from fire.

Disclosure of Invention

The invention aims to solve the following defects in the prior art that the overground power cable is mostly fixedly connected through connecting devices in the installation process, the connecting devices are complex in installation steps when the cable is installed, the fixed shape of the cable cannot be randomly changed, the fireproof performance is poor, and the overground cable cannot be protected against fire, so that the nested power cable fireproof protection device is provided.

In order to achieve the purpose, the invention adopts the following technical scheme:

a nested power cable fire protection device comprising:

the wire clamping port is formed in the nesting seat, a wire inlet is formed in one side of the wire clamping port, cables are fixedly clamped among the nesting seats, and fixing components used for connecting the outside are connected to two sides of each nesting seat;

the sealing assembly comprises a sealing plate and a sliding cavity, the sliding cavity is formed in the nesting seat, the sliding cavity is annular, openings at two ends of the sliding cavity are located on the upper side and the lower side of a wire inlet of the nesting seat, the sealing plate is arc-shaped, and the sealing plate is arranged on the upper side of the sliding cavity in a sealing and sliding manner;

the fire extinguishing assembly is fixedly installed at the upper end of one side, far away from the wire inlet, of the nesting seat and comprises a fire extinguishing tank, spray heads and a buckle cover, an installation groove is formed in the upper side of the nesting seat, the fire extinguishing tank is clamped in the installation groove, the two spray heads are symmetrically installed at two ends of the fire extinguishing tank and connected with the nesting seat through the clamping assembly, one side of the buckle cover is rotatably connected to one side of the nesting seat, and the buckle cover is covered on the fire extinguishing tank;

the sleeve is sleeved on the part of the cable between the two embedded seats.

Preferably, the fixing assemblies comprise fixing plates and bolts, the two fixing plates are symmetrically and fixedly connected to two sides of the nesting seat, the side faces of the fixing plates are provided with wire grooves matched with the wire clamping openings, the fixing plates are provided with threaded holes, and the bolts are fixedly connected with the outside through the threaded holes.

Preferably, the inside fixed connection spacing of opening at slip chamber both ends, seal one side fixedly connected with stopper that the board is located the slip intracavity portion, and other end fixedly connected with card strip.

Preferably, the section of the clamping strip is triangular and is made of elastic materials.

Preferably, the inside equidistance fixedly connected with of card line mouth is a plurality of contact strips, the contact strip is made by the elastic material of protection.

Preferably, the sleeve pipe is made by elastic fireproof materials, there is a fracture in sheathed tube side, there is the bayonet socket the downside of fracture, and the upside has the fixture block, the fixture block card is established inside the bayonet socket.

Preferably, the clamping component comprises clamping rings and clamping grooves, the clamping grooves are symmetrically clamped on two sides of the mounting groove, the clamping rings are sleeved on the spray head at intervals, and the middle part of the spray head is clamped inside the clamping grooves.

Preferably, the top of the nesting seat is fixedly connected with a detection head for detecting a fire source, and the detection head is used for controlling the opening of the spray head.

Preferably, the side end of the spray head is a spraying end, and the side is fixedly connected with a plurality of spraying pipes for extinguishing fire.

Compared with the prior art, the invention has the beneficial effects that:

1. in the using process, firstly, according to the arrangement route of the cables, the positions of the nesting seats are fixed through the fixing assembly, so that the cables can be arranged in different shapes, the mounted cables are clamped in the cable clamping opening, and at the moment, the sealing plate is moved in the sliding cavity through sliding of the sealing plate, so that the cables are fixed between the two nesting seats, and meanwhile, the cable part between the two nesting seats is sleeved through the sleeve;

2. the threaded holes and the bolts in the fixing plates are connected with the building, so that the nesting seats are fixed, and due to the difference of the shape and the use condition of the building, the nesting seats can be fixed at different positions through the fixed connection of the fixing assemblies, so that the cable can be conveniently bent and installed, and the conditions for bending and installing the cable are provided.

Drawings

Fig. 1 is a schematic front structural view of a nested power cable fire protection device according to the present invention;

fig. 2 is a schematic structural diagram of a front surface of a nest seat of the nested power cable fire protection device according to the present invention;

fig. 3 is a cross-sectional view of a nest of the nested power cable fire protection device according to the present invention;

fig. 4 is a schematic structural view of a nesting seat portion of a nested power cable fire protection device according to the present invention;

fig. 5 is a schematic structural diagram of a front side of a sleeve of a nested power cable fire protection device according to the present invention.

In the figure: the fire extinguishing device comprises a 1 embedding seat, a 2 wire clamping port, a 3 cable, a 4 fixing component, a 41 fixing plate, a 42 bolt, a 5 sealing component, a 51 sealing plate, a 52 sliding cavity, a 6 fire extinguishing component, a 61 fire extinguishing tank, a 62 spray head, a 63 buckle cover, a 7 clamping component, a 71 clamping ring, a 72 clamping groove, 8 sleeves, a 9 limiting block, a 10 clamping strip, a 11 contact strip, a 12 clamping block, a 13 detection head and a 14 spraying pipe.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-5, a nested power cable fire protection device includes:

the cable embedding device comprises embedding seats 1, wherein the embedding seats 1 are made of elastic fireproof materials, a cable clamping port 2 is formed in each embedding seat 1, a cable inlet is formed in one side of each cable clamping port 2, cables 3 are fixedly clamped among the embedding seats 1, and fixing assemblies 4 used for connecting the outside are connected to two sides of each embedding seat 1;

the sealing assembly 5 comprises a sealing plate 51 and a sliding cavity 52, the sliding cavity 52 is arranged in the nesting seat 1, the sliding cavity 52 is annular, openings at two ends of the sliding cavity are positioned on the upper side and the lower side of a wire inlet of the nesting seat 1, the sealing plate 51 is arc-shaped, and the sealing plate is arranged on the upper side of the sliding cavity 52 in a sealing and sliding manner;

the fire extinguishing assembly 6 is fixedly arranged at the upper end of one side, far away from a wire inlet, of the embedded sleeve seat 1, the fire extinguishing assembly 6 comprises fire extinguishing tanks 61, spray heads 62 and buckle covers 63, mounting grooves are formed in the upper side of the embedded sleeve seat 1, the fire extinguishing tanks 61 are clamped in the mounting grooves, carbon dioxide is filled in the fire extinguishing tanks 61 and used for spraying and extinguishing fire, the two spray heads 62 are symmetrically arranged at two ends of the fire extinguishing tanks 61 and connected with the embedded sleeve seat 1 through clamping assemblies 7, one sides of the buckle covers 63 are rotatably connected to one sides of the embedded sleeve seat 1, and the buckle covers 63 are arranged on the fire extinguishing tanks 61;

and the sleeve 8 is sleeved on the part of the cable 3 between the two nesting seats 1.

In the invention, in the use process, the positions of the nesting seats 1 are fixed through the fixing assemblies 4 according to the arrangement route of the cables 3, so that the cables 3 can be arranged in different shapes, the installed cables 3 are clamped in the cable clamping port 2, at the moment, the sealing plate 51 is moved in the sliding cavity 52 through the sliding sealing plate 51, so that the cables 3 are fixed between the two nesting seats 1, meanwhile, the cable 3 part between the two nesting seats 1 is sleeved through the sleeve 8, and when a fire source is generated at the position of the cable 3, carbon dioxide in the fire extinguishing tank 61 is sprayed through the spray nozzle 62, so that the flames at different positions are extinguished.

According to the preferable technical scheme in the embodiment, the fixing component 4 comprises fixing plates 41 and bolts 42, the two fixing plates 41 are symmetrically and fixedly connected to two sides of the nesting seat 1, the side faces of the two fixing plates are provided with wire grooves matched with the wire clamping ports 2, the fixing plates 41 are provided with threaded holes, the bolts 42 are fixedly connected with the outside through the threaded holes, mounting holes are clamped at positions needing to be fixed, and the threaded holes in the fixing plates 41 and the bolts 42 are used for being connected with a building, so that the nesting seat 1 is fixed;

the inner parts of openings at two ends of the sliding cavity 52 are fixedly connected with limiting strips, one side, located inside the sliding cavity 52, of the sealing plate 51 is fixedly connected with a limiting block 9, the other end of the sealing plate is fixedly connected with a clamping strip 10, the limiting block 9 and the clamping strip 10 fix and limit the position of the sealing plate 51, when the cable 3 needs to be installed, the sealing plate 51 is moved upwards, a wire inlet is exposed, the cable 3 is clamped inside the embedding seat 1, and after the cable 3 is clamped, the sealing plate 51 is fixed in position through the clamping strip 10, so that the position of the cable 3 is fixed;

the section of the clamping strip 10 is triangular and made of elastic materials, when the elastic clamping strip 10 is compressed and tightened to enter the bottom of the sliding cavity 52, the elastic clamping strip can be fixed from the position of the inner sealing plate 51, and when the sealing plate 51 needs to be disassembled, the clamping strip 10 is also compressed to be moved out of the sliding cavity 52;

a plurality of contact strips 11 are fixedly connected with the inside of the wire clamping port 2 at equal intervals, the contact strips 11 are made of protective elastic materials, the contact strips 11 play a role in reducing contact between the nesting seat 1 and the shell of the cable 3, and play a role in stopping the movement of the cable 3 in the nesting seat 1 in order to reduce the abrasion of the cable 3;

the sleeve 8 is made of elastic fireproof materials, a fracture is formed in the side edge of the sleeve 8, a bayonet is formed in the lower side of the fracture, a clamping block 12 is arranged on the upper side of the fracture, the clamping block 12 is clamped inside the bayonet, the sleeve 8 protects the cable 3 between the two embedded seats 1, and the sleeve 8 can be cut more, so that the sleeve 8 can be cut according to the length of the cable 3, and the protection and fireproof effects of the whole cable 3 can be completely met;

the clamping assembly 7 comprises clamping rings 71 and clamping grooves 72, the two clamping grooves 72 are symmetrically clamped at two sides of the mounting groove, the two clamping rings 71 are sleeved on the spray head 62 at intervals, the middle part of the spray head 62 is clamped in the clamping grooves 72, and the two clamping rings 71 are clamped at two sides of the clamping grooves 72 by the clamping assembly 7, so that the position of the fire extinguishing tank 61 cannot deviate when carbon dioxide is sprayed;

the top of the nesting seat 1 is fixedly connected with a detection head 13 for detecting a fire source, the detection head 13 is used for controlling the opening of the spray head 62, the detection head 13 detects the external fire source at any time, and when the fire light is detected, the spray head 62 is automatically controlled to spray carbon dioxide in the fire extinguishing tank 61;

the side of the spray head 62 is a spray end, the side fixedly connected with spray pipes 14 for extinguishing fire, and the spray area of carbon dioxide is enlarged through the spray pipes 14 for effectively extinguishing fire to fire sources around the nesting seat 1, so that a better fire extinguishing effect is achieved.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. The utility model provides a nested formula power cable fire protection device which characterized in that includes:

the cable connector comprises a nesting seat (1), wherein a cable clamping port (2) is formed in the nesting seat (1), a cable inlet is formed in one side of the cable clamping port (2), cables (3) are fixedly clamped among a plurality of nesting seats (1), and fixing components (4) used for connecting the outside are connected to two sides of the nesting seat (1);

the sealing assembly (5) comprises a sealing plate (51) and a sliding cavity (52), the sliding cavity (52) is arranged inside the nested seat (1), the sliding cavity (52) is annular, openings at two ends of the sliding cavity are positioned on the upper side and the lower side of a wire inlet of the nested seat (1), the sealing plate (51) is arc-shaped, and the sealing plate is arranged on the upper side of the sliding cavity (52) in a sealing and sliding mode;

the fire extinguishing assembly (6) is fixedly installed at the upper end of one side, away from the wire inlet, of the embedded seat (1), the fire extinguishing assembly (6) comprises fire extinguishing tanks (61), spray heads (62) and buckle covers (63), an installation groove is formed in the upper side of the embedded seat (1), the fire extinguishing tanks (61) are clamped inside the installation groove, the two spray heads (62) are symmetrically installed at two ends of the fire extinguishing tanks (61) and are connected with the embedded seat (1) through the clamping assembly (7), one side of the buckle covers (63) is rotatably connected to one side of the embedded seat (1), and the buckle covers (63) are arranged on the fire extinguishing tanks (61);

the cable (3) is arranged between the two embedding seats (1) and sleeved with the sleeve (8), and the sleeve (8) is sleeved on the part of the cable (3) between the two embedding seats (1).

2. The nested power cable fireproof protection device according to claim 1, wherein the fixing assembly (4) comprises two fixing plates (41) and bolts (42), the two fixing plates (41) are symmetrically and fixedly connected to two sides of the nested seat (1), a wire groove matched with the wire clamping port (2) is formed in a side surface of each fixing plate, a threaded hole is formed in each fixing plate (41), and the bolts (42) are fixedly connected with the outside through the threaded holes.

3. The nested power cable fire protection device according to claim 1, wherein a limiting strip is fixedly connected inside openings at two ends of the sliding cavity (52), a limiting block (9) is fixedly connected to one side of the sealing plate (51) located inside the sliding cavity (52), and a clamping strip (10) is fixedly connected to the other end of the sealing plate.

4. A nested power cable fire protection device according to claim 3, wherein the cross-section of the clamping strip (10) is triangular and is made of an elastic material.

5. A nested power cable fire protection device according to claim 1, characterized in that a plurality of contact strips (11) are fixedly connected to the inside of the wire clamping opening (2) at equal intervals, and the contact strips (11) are made of a protective elastic material.

6. The nested power cable fire protection device according to claim 1, wherein the sleeve (8) is made of an elastic fire-proof material, a fracture is formed on a side edge of the sleeve (8), a bayonet is formed on a lower side of the fracture, and a fixture block (12) is formed on an upper side of the fracture, and the fixture block (12) is clamped inside the bayonet.

7. The nested power cable fire protection device according to claim 1, wherein the clamping assembly (7) comprises two clamping rings (71) and two clamping grooves (72), the two clamping grooves (72) are symmetrically clamped at two sides of the mounting groove, the two clamping rings (71) are sleeved on the spray head (62) in a spacing mode, and the middle portion of the spray head (62) is clamped inside the clamping grooves (72).

8. The nested power cable fire protection device according to claim 1, wherein a detection head (13) for detecting a fire source is fixedly connected to the top of the nest (1), and the detection head (13) is used for controlling the opening of the spray head (62).

9. A nested power cable fire protection device according to claim 1, wherein the spray head (62) side end is a spray end and a plurality of spray pipes (14) for extinguishing fire are fixedly connected to the side.