CN211507134U - Fire-resistant electric penetration assembly - Google Patents
Fire-resistant electric penetration assembly Download PDFInfo
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- CN211507134U CN211507134U CN202020107999.0U CN202020107999U CN211507134U CN 211507134 U CN211507134 U CN 211507134U CN 202020107999 U CN202020107999 U CN 202020107999U CN 211507134 U CN211507134 U CN 211507134U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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Abstract
The utility model discloses a fire-resistant electric penetration piece, which comprises a normal temperature terminal box, a penetration cylinder and a fire-resistant terminal box, wherein the penetration cylinder penetrates through a separator, and two ends of the penetration cylinder are respectively connected with the normal temperature terminal box and the fire-resistant terminal box; the fire-resistant terminal box's inside is equipped with the fire-resistant feedthrough of multicore and the fire-resistant feedthrough of single core, the fire-resistant feedthrough of multicore and the fire-resistant feedthrough of single core all pass through the end connection of inner seal flange with running through the barrel. The utility model discloses a three warm areas design carry out corresponding thermal-insulated structural design of fire prevention to the temperature in different regions, can effectively keep apart the diffusion and the conduction of high temperature district heat to the low temperature district, guarantee the electrical property under the high temperature condition between the electric conductor, make it can last reliable work under the fire-resistant condition of regulation.
Description
Technical Field
The utility model relates to an electrical equipment field, concretely relates to fire-resistant electric penetration piece.
Background
Electrical penetrations or electrical penetrations play an increasingly important role both inside and outside the containment of nuclear power generation and inside and outside special purpose structures, not only to transmit electrical energy and signals to electrical equipment inside and outside these facilities, but also to become part of the structure, to assume mechanical and sealing functions, and to provide safety functions in nuclear power plants. In the current nuclear power station, the current electrical penetration piece product mainly has two basic forms, one is to use the electrical conductor of glass or ceramic material and the outside metal casing sintering together to form the electrical penetration piece of high temperature resistance, this type of electrical penetration piece is the highest short time temperature resistant about 350 ℃, but has the defects of not high temperature resistance of the end connection part, reduced insulating property of the connector under the loss of coolant accident, etc. The other type is a feed-through wire made of non-metallic materials and a metal sealing structure, and the electric penetration piece of the type can resist temperature of about 250 degrees at the highest short time and has the defects of high temperature resistance and pressure resistance. In the two types of electrical penetration assemblies, the insulation and mechanical sealing performance between the wires can fail under extreme temperature and pressure conditions, the requirement that the novel nuclear power station continuously works for 3 hours under the condition of fire cannot be met, and the serious consequence of radioactive leakage is easily caused.
SUMMERY OF THE UTILITY MODEL
In view of the above-mentioned shortcomings of the prior art, it is an object of the present invention to provide a fire resistant electrical penetration that solves the problems noted in the background.
In order to achieve the above and other related objects, the present invention provides a fire-resistant electrical penetration assembly, including a normal temperature terminal box, a penetration cylinder and a fire-resistant terminal box, wherein the penetration cylinder penetrates through a partition, and both ends of the penetration cylinder are respectively connected with the normal temperature terminal box and the fire-resistant terminal box, and the outer surface of the fire-resistant terminal box and the connection part of the penetration cylinder and the partition are both provided with a first layer of heat-insulating material;
the fire-resistant terminal box is characterized in that a multi-core fire-resistant feed-through wire and a single-core fire-resistant feed-through wire are arranged inside the fire-resistant terminal box, one ends of the multi-core fire-resistant feed-through wire and one end of the single-core fire-resistant feed-through wire are connected with the end part penetrating through the barrel through inner sealing flanges, a second layer of heat-insulating material is arranged outside each conducting wire in the multi-core fire-resistant feed-through wire and the single-core fire-resistant feed-through wire, the conducting wires and the outer parts of the single-core fire-resistant feed-through wires are coated through high-temperature-resistant sleeves;
every the tip of wire all is connected with the one end of multicore connection external member, the other end of multicore connection external member passes through fire-resistant glan and outside multicore cable connection, the internally mounted of fire-resistant terminal box has the mount, multicore connection external member fixed mounting is on the mount, the tip of the fire-resistant feed-through line of single core is connected with the one end of single core connection external member, the other end of single core connection external member is connected with outside single core cable through another fire-resistant glan.
Preferably, the fire-resistant terminal box and the possible fire area penetrating through the outer part of the cylinder body are a first temperature area, and the temperature of the first temperature area does not exceed 1300 ℃ at most; the inner space of the fire-resistant terminal box is a second temperature zone, and the temperature of the second temperature zone is not more than 800 ℃ at most; the inner parts of the multi-core fire-resistant feed-through wire and the single-core fire-resistant feed-through wire are provided with a third temperature zone, and the highest temperature of the third temperature zone is not more than 250 ℃.
Preferably, the high temperature resistant sleeve and the third layer of insulating material both coat the multi-core fire feed-through and the part of the single-core fire feed-through protruding from the inner sealing flange.
Preferably, aerogel materials are adopted in the first layer of heat insulation material, the second layer of heat insulation material and the third layer of heat insulation material.
Preferably, the high-temperature-resistant sleeve is made of quartz fiber materials.
Preferably, the multi-core connecting sleeve and the single-core connecting sleeve are ceramic connecting terminals.
Preferably, the penetrating cylinder is connected with the normal-temperature terminal box through an external sealing flange.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses a three warm areas design, carry out corresponding fire prevention thermal insulation structural design to the temperature of different regions, wherein, it sets up first layer heat-insulating material to run through barrel and fire-resistant terminal box surface, make it can tolerate 3 hours high temperature barbecue under 1300 ℃, the adiabatic structure does not collapse, guarantee that fire-resistant terminal box inner space temperature is less than 800 ℃, and the surface of single core fire-resistant feed-through line and the fire-resistant feed-through line of multicore cladding second floor heat-insulating material in proper order, high temperature resistant sleeve pipe and third layer heat-insulating material, guarantee that feed-through line inner temperature is less than 250 ℃, can effectively keep apart the diffusion and the conduction of high temperature district heat to the low temperature district, guarantee the electric property under the high temperature condition between the electric conductor, make it can last reliable work under the fire-resistant condition of regulation.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a partially enlarged schematic view of fig. 1.
Wherein the reference numerals are specified as follows: the high-temperature-resistant cable comprises a normal-temperature terminal box 1, a penetrating cylinder 2, a spacer 3, a first layer of heat-insulating material 4, an inner dense layer flange 5, a multi-core fire-resistant feed-through wire 6, a lead wire 7, a second layer of heat-insulating material 8, a high-temperature-resistant sleeve 9, a third layer of heat-insulating material 10, a multi-core connecting sleeve 11, a fixing frame 12, a fire-resistant terminal box 13, an external multi-core cable 14, a fire-resistant glan 15, an external single-core cable 16, a single-core connecting sleeve 17, a single-core fire-resistant.
Detailed Description
The following description is provided for illustrative purposes, and other advantages and features of the present invention will become apparent to those skilled in the art from the following detailed description.
It should be understood that the structure, ratio, size and the like shown in the drawings of the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by those skilled in the art, and are not used for limiting the limit conditions that the present invention can be implemented, so that the present invention does not have the essential significance in the technology, and any modification of the structure, change of the ratio relationship or adjustment of the size should still fall within the scope of the technical content disclosed in the present invention without affecting the function and the achievable purpose of the present invention. Meanwhile, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for convenience of description, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof may be made without substantial technical changes, and the present invention is also regarded as the scope of the present invention.
As shown in fig. 1, the utility model provides a fire-resistant electric penetration assembly, including normal atmospheric temperature terminal box 1, run through barrel 2 and fire-resistant terminal box 13, run through barrel 2 and run through isolation 3 (generally be wall body or protective housing casing), and its both ends are connected with normal atmospheric temperature terminal box 1 and fire-resistant terminal box 13 respectively, and the surface of fire-resistant terminal box 13 and the coupling part that runs through barrel 2 and isolation 3 all are provided with first layer heat-insulating material 4.
As shown in fig. 2, a multi-core fire-resistant feed-through wire 6 and a single-core fire-resistant feed-through wire 18 are arranged inside the fire-resistant terminal box 13, one ends of the multi-core fire-resistant feed-through wire 6 and the single-core fire-resistant feed-through wire 18 are connected with the end part penetrating through the barrel 2 through an inner sealing flange 5, the inner sealing flange 5 plays a role in sealing and pressure bearing at the same time, a second layer of heat-insulating material 8 is arranged outside each lead 7 in the multi-core fire-resistant feed-through wire 6 and the single-core fire-resistant feed-through wire 18, the lead 7 and the outside of the single-core fire-resistant feed-through wire 18 are both coated through a high-temperature-resistant sleeve 9, and a third.
The end of each lead 7 is connected with one end of a multi-core connection kit 11, the other end of the multi-core connection kit 11 is connected with an external multi-core cable 14 through a fire-resistant flange 15, a fixing frame 12 is installed inside a fire-resistant terminal box 13, the multi-core connection kit 11 is fixedly installed on the fixing frame 12, the end of a single-core fire-resistant feed-through line 18 is connected with one end of a single-core connection kit 17, and the other end of the single-core connection kit 17 is connected with an external single-core cable 16 through another fire-resistant flange 15.
Through the technical scheme, the fire-resistant terminal box 13 and the possibly-fired area penetrating through the outer part of the barrel 2 are a first temperature area, and the highest temperature of the first temperature area is not more than 1300 ℃; the inner space of the fireproof terminal box 13 is a second temperature zone, and the temperature of the second temperature zone is not more than 800 ℃ at most; the inside of the multicore fire-resistant feed-through 6 and the single-core fire-resistant feed-through 18 is a third temperature zone, and the maximum temperature of the third temperature zone is not more than 250 ℃. The normal temperature terminal box 1 may be configured as in the case of the fire-resistant terminal box 13, if necessary, depending on the environmental conditions.
In this embodiment, the refractory sheath 9 and the third layer of insulation 10 both cover the multi-core refractory feedthrough 6 and the part of the single-core refractory feedthrough 18 that protrudes from the inner sealing flange 5.
In this embodiment, the first layer of thermal insulation material 4, the second layer of thermal insulation material 8, and the third layer of thermal insulation material 10 are made of aerogel material, or nano-silica material, and are used alternately with refractory quartz fiber, ceramic fiber, or high silica fiber, so that they have good mechanical strength and radiation resistance.
In this embodiment, the high temperature resistant sleeve 9 is made of quartz fiber material, or ceramic fiber, high silica fiber or glass fiber material, which all have good high temperature resistance.
In this embodiment, the multi-core connection kit 11 and the single-core connection kit 17 are ceramic connection terminals, and connection forms such as a crimp tube covered heat shrink tube, a metal connector, or a coaxial connector may also be adopted.
In this embodiment, the penetration cylinder 2 is connected to the normal temperature terminal box 1 through the outer sealing flange 19, and the outer sealing flange 19 simultaneously plays a role in sealing and bearing pressure.
When in use, the utility model adopts the design of three temperature zones, corresponding fireproof and heat-insulating structure design is carried out aiming at the temperatures of different areas, wherein, a first layer of heat-insulating material 4 is arranged on the outer surface of the penetration cylinder 2 and the fireproof terminal box 1, so that the high-temperature barbecue of the fire-resistant terminal box can be endured for 3 hours at 1300 ℃, the heat-insulating structure is not collapsed, the temperature of the inner space of the fireproof terminal box 1 is ensured to be less than 800 ℃, and the outer surfaces of the single-core fireproof feed-through wire 18 and the multi-core fireproof feed-through wire 6 are sequentially coated with a second layer of heat-insulating material 8, a high-temperature-resistant sleeve 9 and a third layer of heat-insulating material 10, the inner temperature of each feed-through wire is ensured to be less than 250 ℃, the diffusion and conduction of the heat of the high temperature zone to the low temperature zone can be effectively isolated, the electrical, and transmitting power and signals for the required electric equipment.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (7)
1. A fire-resistant electric penetration piece is characterized by comprising a normal-temperature terminal box (1), a penetration cylinder (2) and a fire-resistant terminal box (13), wherein the penetration cylinder (2) penetrates through a partition (3), two ends of the penetration cylinder are respectively connected with the normal-temperature terminal box (1) and the fire-resistant terminal box (13), and the outer surface of the fire-resistant terminal box (13) and the connecting part of the penetration cylinder (2) and the partition (3) are respectively provided with a first layer of heat-insulating material (4);
a multi-core fire-resistant feed-through wire (6) and a single-core fire-resistant feed-through wire (18) are arranged inside the fire-resistant terminal box (13), one ends of the multi-core fire-resistant feed-through wire (6) and the single-core fire-resistant feed-through wire (18) are connected with the end part penetrating through the barrel body (2) through inner sealing flanges (5), a second layer of heat-insulating material (8) is arranged outside each lead (7) in the multi-core fire-resistant feed-through wire (6) and the single-core fire-resistant feed-through wire (18), the leads (7) and the single-core fire-resistant feed-through wire (18) are coated through high-temperature-resistant sleeves (9), and a third layer of heat-insulating material (10) is arranged on the outer surfaces of the high-temperature-;
every the tip of wire (7) all is connected with the one end of multicore connection external member (11), the other end of multicore connection external member (11) is connected with outside multicore cable (14) through fire-resistant glan (15), the internally mounted of fire-resistant terminal case (13) has mount (12), multicore connection external member (11) fixed mounting is on mount (12), the tip of the fire-resistant feed-through line of single core (18) is connected with the one end of single core connection external member (17), the other end of single core connection external member (17) is connected with outside single core cable (16) through another fire-resistant glan (15).
2. A fire-resistant electrical penetration according to claim 1, wherein: the fire-resistant terminal box (13) and the possibly ignited area outside the penetrating cylinder body (2) are a first temperature area, and the temperature of the first temperature area is not more than 1300 ℃ at most; the inner space of the fire-resistant terminal box (13) is a second temperature zone, and the temperature of the second temperature zone is not more than 800 ℃ at most; the interiors of the multi-core fire-resistant feed-through wire (6) and the single-core fire-resistant feed-through wire (18) are a third temperature zone, and the highest temperature of the third temperature zone is not more than 250 ℃.
3. A fire-resistant electrical penetration according to claim 1, wherein: the high-temperature-resistant sleeve (9) and the third layer of heat-insulating material (10) cover the multi-core fire-resistant feed-through wire (6) and the part of the single-core fire-resistant feed-through wire (18) extending from the inner sealing flange (5).
4. A fire-resistant electrical penetration according to claim 1, wherein: the first layer of heat-insulating material (4), the second layer of heat-insulating material (8) and the third layer of heat-insulating material (10) are made of aerogel materials.
5. A fire-resistant electrical penetration according to claim 1, wherein: the high-temperature-resistant sleeve (9) is made of quartz fiber materials.
6. A fire-resistant electrical penetration according to claim 1, wherein: the multi-core connecting sleeve (11) and the single-core connecting sleeve (17) are ceramic wiring terminals.
7. A fire-resistant electrical penetration according to claim 1, wherein: the penetrating cylinder body (2) is connected with the normal-temperature terminal box (1) through an outer sealing flange (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020107999.0U CN211507134U (en) | 2020-01-17 | 2020-01-17 | Fire-resistant electric penetration assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020107999.0U CN211507134U (en) | 2020-01-17 | 2020-01-17 | Fire-resistant electric penetration assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211507134U true CN211507134U (en) | 2020-09-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020107999.0U Active CN211507134U (en) | 2020-01-17 | 2020-01-17 | Fire-resistant electric penetration assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211507134U (en) |
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2020
- 2020-01-17 CN CN202020107999.0U patent/CN211507134U/en active Active
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