CN214589871U - A protection screen rack for transformer substation - Google Patents

Abstract

The utility model discloses a protection screen rack for transformer substation relates to power equipment technical field. The utility model discloses a protection outer container, rack, insulating bottom plate, waterproof bottom plate and insulating protection screen, wherein the inside and the fixedly connected with rack of protection outer container, the front and the insulating protection screen fixed connection of rack, the below and the insulating bottom plate fixed connection of protection outer container, the below and the waterproof bottom plate fixed connection of insulating bottom plate. The utility model discloses a protection outer container, rack, insulating bottom plate, waterproof bottom plate and insulating protection screen have solved that current transformer substation's rack protection screen security is low, dampproofing and waterproofing performance is low and lack bottom insulation system's problem.

Description

A protection screen rack for transformer substation

Technical Field

The utility model belongs to the technical field of power equipment, especially, relate to a protection screen rack for transformer substation.

Background

The transformer substation is a place for transforming voltage and current in an electric power system, receiving electric energy and distributing electric energy, the transformer substation in a power plant is a boosting transformer substation, the function of the boosting transformer substation is to boost the electric energy generated by a generator and feed the boosted electric energy into a high-voltage power grid, a small-sized transformation mechanism is needed for normally distributing the electric current to users, the transformer substation is a place for transforming, concentrating and distributing the voltage and the current of the electric energy in the electric power system, in order to ensure the quality of the electric energy and the safety of equipment, voltage adjustment, load flow (the flow direction and distribution of the voltage, the current and the power in each node and branch in the electric power system) control and the protection of a transmission and distribution line and main electrical equipment are needed in the transformer substation, the transformer substation is mainly used for protecting the electric power equipment, and the existence of the equipment is wide, generally, the device is installed at intersections, districts, streets and other places, and the importance and universality in life are found that the device has the following disadvantages:

1. the existing transformer substation cabinet adopts a protection screen to isolate and protect the inside of the transformer substation cabinet, and the common protection screen adopts common glass, although the common glass is generally non-conductive, the common glass is lack of certain safety, and only the common glass is adopted for isolation, so that a corresponding high-efficiency insulation structure is lacked, and certain danger exists;

2. the existing transformer substation cabinet is incomplete in moisture-proof and waterproof facilities, and the moisture-proof and waterproof functions are incomplete, so that not only can the transformer substation be corroded, but also the dryness of an internal dry environment can be reduced, the content of water molecules in the internal environment is increased, once too many water molecules are contained in the air, the internal circuit can be influenced, the connection of the circuit and the operation of a machine are influenced, the short circuit of the circuit and the breakage of the circuit are caused, and the damage of the whole short circuit of a transformer can be caused under severe conditions;

3. the existing transformer substation cabinet is not generally primed by adopting an insulation structure, but a common bottom plate is used as the bottom surface, although the bottom surface is convenient and cheap to implement, once the condition that an electric wire is broken and hangs down to the ground occurs in the transformer substation, a great potential safety hazard is generated, the voltage of the ground around the transformer substation can be changed, the voltage is greatly boosted, a fire disaster can be caused, an electric shock can be caused to people passing by at that time, and serious people can die due to high voltage.

Therefore, the existing substation cabinet cannot meet the requirements in practical use, so that an improved technology is urgently needed in the market to solve the problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a protection screen rack for transformer substation, through protection outer container, rack, insulating bottom plate, waterproof bottom plate and insulating protection screen, solved current transformer substation's rack protection screen security low, dampproofing and waterproofing performance low and lack bottom insulation system's problem.

In order to solve the technical problem, the utility model discloses a realize through following technical scheme:

the utility model relates to a protection screen cabinet for transformer substation, which comprises a protection outer box, a cabinet, an insulation bottom plate, a waterproof bottom plate and an insulation protection screen, wherein the cabinet is fixedly connected inside the protection outer box, the protection outer box is an outer protection shell of the cabinet, plays a role in protecting an internal circuit from external factors, ensures the operation stability of an internal device, the cabinet is a main structure of the transformer substation and is a place for transforming, concentrating and distributing the voltage and the current of electric energy, the front side of the cabinet is fixedly connected with the insulation protection screen, the insulation protection screen is a front isolation structure of the cabinet and is used for isolating and protecting circuit equipment inside the cabinet, the lower part of the protection outer box is fixedly connected with the insulation bottom plate, the insulation bottom plate is a bottom connecting plate of the cabinet, the physical and mechanical properties are good, the insulation performance is good, and the cabinet can work in an environment with high dielectric coefficient requirement, the below and the waterproof bottom plate fixed connection of insulating bottom plate, waterproof bottom plate is insulating bottom plate's lower floor waterproof layer for prevent that moisture from getting into cabinet body inside through ground, cause the influence to internal circuit structure.

Further, the protection outer container includes chamber door, heat dissipation window, handle, box, roof and key hole, the front of chamber door is provided with the heat dissipation window, there are handle and chamber door fixed connection in one side of the below of heat dissipation window, there is key hole fixed connection in the inside of chamber door in one side of handle, the one end and the box swing joint of chamber door, the top and the roof fixed connection of box, chamber door are used for sealing the internal environment, play the guard action to the internal circuit, and the heat dissipation window is used for exporting the diffusion to the heat that the internal circuit produced, prevents the heat siltation, and the roof is used for carrying on waterproofly to the top of box, prevents that water overstocking at the top.

Further, the rack includes circuit device, quick-witted case, door frame and handle, circuit device fixed connection is in the inside of quick-witted case, the front and the door frame swing joint of machine case, positive one side and the handle fixed connection of door frame, circuit device include circuit structure such as instrument relay room, isolator operation structure, mutual-inductor structure, observation window and short circuiter operation structure mechanism, are the place that transforms, concentrates and distributes the voltage and the electric current of electric energy, and the machine case is circuit device fixed connection's structure, and the door frame is the fixed structure of insulating protection screen, and the handle is used for providing the pulling structure for opening the rack.

Furthermore, the insulation bottom plate comprises an upper conductor shielding layer, an insulation shielding layer, a metal shielding layer, a flame-retardant layer, a lower conductor shielding layer and a cushion layer, wherein the lower part of the upper conductor shielding layer is fixedly connected with the insulation layer, the lower part of the insulation layer is fixedly connected with the insulation shielding layer, the lower part of the insulation shielding layer is fixedly connected with the metal shielding layer, the lower part of the metal shielding layer is fixedly connected with the flame-retardant layer, the lower part of the flame-retardant layer is fixedly connected with the lower conductor shielding layer, the lower part of the lower conductor shielding layer is fixedly connected with the cushion layer, the upper conductor shielding layer and the lower conductor shielding layer are used for shielding conductors and preventing the conductors from electric shock after contacting, the insulation layer has no conductivity and is used for preventing the current from conducting to the periphery, the insulation shielding layer is used for isolating the insulation layer and preventing the insulation layer from being influenced by the external conditions, the metal shielding layer is used for shielding the effect of outside metal, and fire-retardant layer has high temperature resistance for to inside or outside influence when preventing to give off the conflagration, the bed course is insulation system's substructure, is used for supporting superstructure.

Further, the waterproof bottom plate comprises a balance layer, an upper isolation layer, a base material layer, a lower isolation layer, a sealing layer, a water absorbing layer and an anti-abrasion layer, the lower part of the balance layer is fixedly connected with the upper isolation layer, the lower part of the upper isolation layer is fixedly connected with the base material layer, the lower part of the substrate layer is fixedly connected with the lower isolation layer, the lower part of the lower isolation layer is fixedly connected with the sealing layer, the lower part of the sealing layer is fixedly connected with the water-absorbing layer, the lower part of the water-absorbing layer is fixedly connected with the anti-abrasion layer, the anti-abrasion layer can prolong the service life of the waterproof floor and can play a role in water prevention, the sealing layer plays a role in sealing, can block the infiltration of water, draw the water layer and play the effect of absorbing moisture, the isolation layer carries out the bilayer to waterproof floor and seals, and the substrate layer adopts solid core material to make for the support of structure, balanced layer forms a balanced trend to waterproof floor.

Further, the insulation protection screen comprises an inner conductor isolation layer, an inner insulation layer, high-temperature-resistant glass, a shielding layer and an outer conductor isolation layer, wherein one side of the inner conductor isolation layer is fixedly connected with the inner insulation layer, one side of the inner insulation layer is fixedly connected with the high-temperature-resistant glass, one side of the high-temperature-resistant glass is fixedly connected with the shielding layer, one side of the shielding layer is fixedly connected with the outer conductor isolation layer, the inner conductor isolation layer and the outer conductor isolation layer are used for isolating the conductor, the electric shock phenomenon after the conductor is contacted is prevented, the inner insulation layer has excellent insulation performance, isolation performance is realized in the environment with high dielectric coefficient, the high-temperature-resistant glass can bear high temperature influence, the high toughness is realized, the shielding layer can shield the influence of foreign objects, and the influence of the foreign objects on the internal environment is prevented.

The utility model discloses following beneficial effect has:

1. the utility model solves the problem of low safety of the prior substation cabinet protection screen by arranging the insulation protection screen, the insulation protection screen is provided with an inner conductor isolation layer, an inner insulation layer, high temperature resistant glass, a shielding layer and an outer conductor isolation layer, wherein the inner conductor isolation layer and the outer conductor isolation layer are used for isolating conductors to prevent the electric shock phenomenon after the conductors are contacted, the inner insulation layer has excellent insulation performance and has isolation performance to the environment with higher dielectric coefficient, the high temperature resistant glass can bear higher temperature influence and has higher toughness, the shielding layer can shield the influence of foreign objects to prevent the foreign objects from influencing the internal environment, the safety performance of the protection screen can be improved through the inner conductor isolation layer, the inner insulation layer, the high temperature resistant glass, the shielding layer and the outer conductor isolation layer, and the pressure resistance of the protection screen can also be improved, the service efficiency of the protection screen is greatly improved.

2. The utility model solves the problem of low waterproof and moisture-proof performance of the existing transformer substation cabinet by arranging the waterproof bottom plate, the waterproof bottom plate is provided with the balance layer, the upper isolation layer, the substrate layer, the lower isolation layer, the sealing layer, the water absorbing layer and the anti-abrasion layer, wherein the wear-resistant layer can prolong the service life of the waterproof floor and can also play a role of waterproofing, the sealing layer plays a role of sealing, can prevent water from permeating, the water drawing layer has the function of absorbing water, the isolation layer is used for carrying out double-layer sealing on the waterproof floor, the base material layer is made of solid materials, a support for the structure, balanced layer forms a balanced trend to waterproof floor, through setting up balanced layer, upper isolation layer, substrate layer, lower floor's isolation layer, sealing layer, water drawing layer and abrasionproof layer, has not only improved the waterproof ability of transformer substation greatly, still increases terrain clearance, more is favorable to hoisting device's waterproof performance.

3. The utility model discloses a set up insulating bottom plate, the problem that current transformer substation's rack lacks bottom insulation system has been solved, be provided with upper conductor shielding layer in the insulating bottom plate, the insulating layer, insulating shield, the metallic shield, fire-retardant layer, lower floor's conductor shielding layer and bed course, wherein upper conductor shielding layer and lower floor's conductor shielding layer are used for the shielding to the conductor, prevent to take place electric shock phenomenon after the conductor contact, the insulating layer does not have electric conductivity, be used for preventing the electric current to conduction all around, insulating shield is used for the isolation to the insulating layer, prevent that the insulating layer from receiving the influence of external conditions, the metallic shield is used for shielding the effect of outside metal, fire-retardant layer has high temperature resistant effect, be used for preventing to inside or outside influence when putting away the conflagration, the bed course is insulating structure's substructure, be used for supporting upper structure, through setting up upper conductor shielding layer, Insulating layer, insulating shield layer, metallic shield layer, fire-retardant layer, lower floor's conductor shield layer and bed course have not only improved the insulating effect of transformer substation bottom greatly, still increase terrain clearance, more are favorable to the security of rack.

Of course, it is not necessary for any particular product to achieve all of the above-described advantages at the same time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the present invention;

FIG. 3 is a schematic view of the protective outer case of the present invention;

fig. 4 is a schematic view of the cabinet and the insulating protection screen of the present invention;

fig. 5 is a schematic view of the insulating bottom plate and the waterproof bottom plate of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1. protecting the outer box; 101. a box door; 102. a heat dissipation window; 103. a handle; 104. a box body; 105. a top plate; 106. a key hole; 2. a cabinet; 201. a circuit device; 202. a chassis; 203. a door frame; 204. a handle; 3. an insulating base plate; 301. an upper conductor shield layer; 302. an insulating layer; 303. an insulating shield layer; 304. a metal shielding layer; 305. a flame retardant layer; 306. a lower conductor shield layer; 307. a cushion layer; 4. a waterproof bottom plate; 401. a balancing layer; 402. an upper isolation layer; 403. a substrate layer; 404. a lower isolation layer; 405. a sealing layer; 406. drawing a water layer; 407. an anti-wear layer; 5. an insulating protection screen; 501. an inner conductor isolation layer; 502. an inner insulating layer; 503. high temperature resistant glass; 504. a shielding layer; 505. an outer conductor isolation layer.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

Referring to fig. 1-5, the present invention relates to a protection screen cabinet for a transformer substation, which comprises a protection outer box 1, a cabinet 2, an insulating bottom plate 3, a waterproof bottom plate 4 and an insulating protection screen 5, wherein the interior of the protection outer box 1 is fixedly connected with the cabinet 2, the interior of a box body 104 of the protection outer box 1 is fixedly connected with the cabinet 2, the cabinet 2 is isolated from the external environment by the internal fixing mode of the cabinet 2, the front side of the cabinet 2 is fixedly connected with the insulating protection screen 5, the interior of a door frame 203 of the cabinet 2 is fixedly connected with the insulating protection screen 5, the insulating protection screen 5 is fixed and supported by the mode that the insulating protection screen 5 is fixed in the door frame 203, the lower part of the protection outer box 1 is fixedly connected with the insulating bottom plate 3, the lower part of the box body 104 of the protection outer box 1 is fixedly connected with the insulating bottom plate 3, and the lower part of the box body 104 is fixedly connected with the insulating bottom plate 3, the waterproof structure is used for enhancing the compactness of the structure and improving the insulating property of the bottom of a transformer substation, the lower part of the insulating base plate 3 is fixedly connected with the waterproof base plate 4, the lower part of the cushion layer 307 of the insulating base plate 3 is fixedly connected with the balance layer 401 of the waterproof base plate 4, and the tightness and the connectivity of the structure are enhanced through the mode of fixedly connecting the cushion layer 307 and the balance layer 401.

As shown in fig. 1-3, the protective outer box 1 includes a box door 101, a heat dissipation window 102, a handle 103, a box body 104, a top plate 105 and a key hole 106, the heat dissipation window 102 is disposed on the front side of the box door 101, the handle 103 is disposed on one side below the heat dissipation window 102 and fixedly connected to the box door 101, the key hole 106 is disposed on one side of the handle 103 and fixedly connected to the inside of the box door 101, one end of the box door 101 is movably connected to the box body 104, the top of the box body 104 is fixedly connected to the top plate 105, the height of the box door 101 is the same as the height of the front side of the box body 104 and is flush with the height of the cabinet 2, the door 101 is fixed and an enough opening area is reserved for the insulating protection screen 5, the heat dissipation window 102 is distributed and has a large covering area, which is convenient for dissipating heat from the inside, an inclined plate is disposed above the heat dissipation window 102, the downward covering area of the inclined plate is larger than the heat dissipation window 102 and is used for shielding rainwater, the handle 103 is disposed in the middle of the right side of the front side of the box door 101, the door 101 can be opened conveniently by matching with the key hole 106, and the coverage area of the top plate 105 is larger than the bottom area of the box body 104, so that rainwater can be better shielded.

As shown in fig. 1, 2, and 4, the cabinet 2 includes a circuit device 201, a chassis 202, a door frame 203, and a handle 204, the circuit device 201 is fixedly connected inside the chassis 202, the front surface of the chassis 202 is movably connected to the door frame 203, one side of the front surface of the door frame 203 is fixedly connected to the handle 204, the circuit device 201 is an existing substation device, the chassis 202 is attached to the inside of the box 104 for preventing the chassis 202 from moving, the width of the chassis 202 is smaller than that of the box 104 for reserving a fixing space of the door 101, an opening area is provided at the front end of the chassis 202, one end of the opening area is fixed to the door frame 203 through a rotary clamping structure for opening and fixing the door frame 203, and the handle 204 is fixedly connected to the right side frame of the front surface of the door frame 203 for providing a condition for opening the door frame 203.

As shown in fig. 1, 2, and 5, the insulating base plate 3 includes an upper conductor shielding layer 301, an insulating layer 302, an insulating shielding layer 303, a metal shielding layer 304, a flame retardant layer 305, a lower conductor shielding layer 306, and a pad layer 307, where the lower part of the upper conductor shielding layer 301 is fixedly connected to the insulating layer 302, the lower part of the insulating layer 302 is fixedly connected to the insulating shielding layer 303, the lower part of the insulating shielding layer 303 is fixedly connected to the metal shielding layer 304, the lower part of the metal shielding layer 304 is fixedly connected to the flame retardant layer 305, the lower part of the flame retardant layer 305 is fixedly connected to the lower conductor shielding layer 306, the lower part of the lower conductor shielding layer 306 is fixedly connected to the pad layer 307, and the insulating base plate 3 has a simple structure and is well-graded, and the upper conductor shielding layer 301, the insulating layer 302, the insulating shielding layer 303, the metal shielding layer 304, the flame retardant layer 305, the lower conductor shielding layer 306, and the pad layer 307 are sequentially arranged from top to bottom, where the upper conductor shielding layer 301 and the lower conductor shielding layer 306 are used for separating the internal structure of the insulating base plate 3 From the enclosure, the backing 307 supports the insulating base plate 3 and provides a fixed structure for the waterproof base plate 4.

As shown in fig. 1, 2 and 5, the waterproof bottom plate 4 includes a balance layer 401, an upper isolation layer 402, a substrate layer 403, a lower isolation layer 404, a sealing layer 405, a water-drawing layer 406 and an anti-abrasion layer 407, the lower part of the balance layer 401 is fixedly connected with the upper isolation layer 402, the lower part of the upper isolation layer 402 is fixedly connected with the substrate layer 403, the lower part of the substrate layer 403 is fixedly connected with the lower isolation layer 404, the lower part of the lower isolation layer 404 is fixedly connected with the sealing layer 405, the lower part of the sealing layer 405 is fixedly connected with the water-drawing layer 406, the lower part of the water-drawing layer 406 is fixedly connected with the anti-abrasion layer 407, the waterproof structure adopts a conversion concept, the bottom of the transformer substation is waterproofed by inverting the waterproof structure layer, the structural layers of the waterproof structure are sequentially the balance layer 401, the upper isolation layer 402, the substrate layer 403, the lower isolation layer 404, the sealing layer 405, the water-drawing layer 406 and the anti-abrasion layer 407 from top to bottom, and the total height of the structure is larger than ten millimeters, for raising the ground clearance.

As shown in fig. 1, 2 and 4, the insulating protection screen 5 includes an inner conductor isolation layer 501, an inner insulation layer 502, a high temperature resistant glass 503, a shielding layer 504 and an outer conductor isolation layer 505, one side of the inner conductor isolation layer 501 is fixedly connected with the inner insulation layer 502, one side of the inner insulation layer 502 is fixedly connected with the high temperature resistant glass 503, one side of the high temperature resistant glass 503 is fixedly connected with the shielding layer 504, one side of the shielding layer 504 is fixedly connected with the outer conductor isolation layer 505, the insulating protection screen 5 is an integrated structural layer, and the arrangement mode of the integrated structural layer is that the inner conductor isolation layer 501, the inner insulation layer 502, the high temperature resistant glass 503, the shielding layer 504 and the outer conductor isolation layer 505 are sequentially arranged from inside to outside, wherein the inner conductor isolation layer 501 and the outer conductor isolation layer 505 are used for protecting and isolating the inner insulation layer 502, the high temperature resistant glass 503 and the shielding layer 504, the high temperature resistant glass 503 is fixed between the inner insulation layer 502 and the shielding layer 504, the inner conductor isolation layer 501, the inner insulation layer 502, the shielding layer 504 and the outer conductor isolation layer 505 are transparent in appearance and convenient to observe, and are the substrate structure of the insulation protection screen 5.

One specific application of this embodiment is: when the transformer substation needs to be adjusted and maintained, firstly, a door lock is opened through the key hole 106, then the box door 101 is opened by pulling the handle 103, after the door lock is opened, the internal situation is observed through the insulating protection screen 5, a mechanism needing to be maintained or adjusted is locked, then the door frame 203 is pulled open through the handle 204, then the corresponding circuit equipment 201 is adjusted and maintained, and after the adjustment or maintenance is finished, the insulating protection screen 5 and the box door 101 are closed in sequence.

The above is only the preferred embodiment of the present invention, and the present invention is not limited thereto, any technical solutions recorded in the foregoing embodiments are modified, and some technical features thereof are replaced with equivalent ones, and any modification, equivalent replacement, and improvement made thereby all belong to the protection scope of the present invention.

Claims (6)

1. The utility model provides a protection screen rack for transformer substation, includes protection outer container (1), rack (2), insulating bottom plate (3), waterproof bottom plate (4) and insulating protection screen (5), its characterized in that: the inside fixedly connected with rack (2) of protection outer container (1), the front and insulating protection screen (5) fixed connection of rack (2), the below and insulating bottom plate (3) fixed connection of protection outer container (1), the below and waterproof bottom plate (4) fixed connection of insulating bottom plate (3).

2. The protection screen cabinet for the transformer substation of claim 1, wherein the protection outer box (1) comprises a box door (101), a heat dissipation window (102), a handle (103), a box body (104), a top plate (105) and a key hole (106), the heat dissipation window (102) is arranged on the front surface of the box door (101), the handle (103) is fixedly connected with the box door (101) on one side below the heat dissipation window (102), the key hole (106) is fixedly connected inside the box door (101) on one side of the handle (103), one end of the box door (101) is movably connected with the box body (104), and the top of the box body (104) is fixedly connected with the top plate (105).

3. A protection screen cabinet for a substation according to claim 1, characterized in that the cabinet (2) comprises circuit equipment (201), a cabinet (202), a door frame (203) and a handle (204), the circuit equipment (201) is fixedly connected inside the cabinet (202), the front of the cabinet (202) is movably connected with the door frame (203), and one side of the front of the door frame (203) is fixedly connected with the handle (204).

4. A protection screen cabinet for a substation according to claim 1, the insulating bottom plate (3) comprises an upper conductor shielding layer (301), an insulating layer (302), an insulating shielding layer (303), a metal shielding layer (304), a flame-retardant layer (305), a lower conductor shielding layer (306) and a cushion layer (307), the lower part of the upper conductor shielding layer (301) is fixedly connected with an insulating layer (302), the lower part of the insulating layer (302) is fixedly connected with an insulating shielding layer (303), the lower part of the insulating shielding layer (303) is fixedly connected with the metal shielding layer (304), the lower part of the metal shielding layer (304) is fixedly connected with the flame-retardant layer (305), the lower part of the flame-retardant layer (305) is fixedly connected with a lower conductor shielding layer (306), the lower part of the lower conductor shielding layer (306) is fixedly connected with a cushion layer (307).

5. The protection screen cabinet for the transformer substation of claim 1, wherein the waterproof bottom plate (4) comprises a balance layer (401), an upper isolation layer (402), a base material layer (403), a lower isolation layer (404), a sealing layer (405), a water-absorbing layer (406) and an anti-abrasion layer (407), the lower portion of the balance layer (401) is fixedly connected with the upper isolation layer (402), the lower portion of the upper isolation layer (402) is fixedly connected with the base material layer (403), the lower portion of the base material layer (403) is fixedly connected with the lower isolation layer (404), the lower portion of the lower isolation layer (404) is fixedly connected with the sealing layer (405), the lower portion of the sealing layer (405) is fixedly connected with the water-absorbing layer (406), and the lower portion of the water-absorbing layer (406) is fixedly connected with the anti-abrasion layer (407).

6. The protection screen cabinet for the transformer substation of claim 1, wherein the insulation protection screen (5) comprises an inner conductor isolation layer (501), an inner insulation layer (502), high temperature resistant glass (503), a shielding layer (504) and an outer conductor isolation layer (505), one side of the inner conductor isolation layer (501) is fixedly connected with the inner insulation layer (502), one side of the inner insulation layer (502) is fixedly connected with the high temperature resistant glass (503), one side of the high temperature resistant glass (503) is fixedly connected with the shielding layer (504), and one side of the shielding layer (504) is fixedly connected with the outer conductor isolation layer (505).

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