High-voltage-resistant electrical penetration joint

Abstract

The utility model relates to the technical field of liquefied natural gas equipment, in particular to a high-voltage-resistant electrical penetration joint, which is characterized in that the inner layer of a main body is a heat shrink tube, the heat shrink tube is mounted on the outer layer of a conductor, the outer layer of the main body is a steel tube for sealing the conductor, the main body and the steel tube are integrally designed, and two ends of the main body are mounted on a low-temperature container through threads. According to the utility model, through integral design and direct installation on a low-temperature container, higher pressure bearing capacity is realized, leakage points are greatly reduced, and high flexibility and operability are realized.

Description

Technical Field

[0001] The utility model relates to the technical field of liquefied natural gas equipment, in particular to a high-voltage resistant electrical penetration joint. Background Art

[0002] The cryogenic joint is used to supply power to the internal equipment of the cryogenic container, and serves as an electrical connection between the inside and outside of the tank. Due to the special usage scenario, the electrical part must meet the requirements of preventing short circuits, sparks, overheating and other explosive factors, and the mechanical part must meet the sealing requirements to ensure that the gas in the cryogenic container will not leak.

[0003] The low-temperature joint in the prior art has a sealing effect by squeezing the sealing member through the threaded structure to cause the sealing member to deform, but there are still problems such as low pressure bearing, leakage points in the split structure, and inconvenient installation.

[0004] Based on the above reasons, the utility model designs a high-voltage resistant electrical through-connector, which realizes a small integrated structure, has a small installation space and is easy to disassemble and assemble while meeting a higher pressure-bearing capacity. Summary of the invention

[0005] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a high-voltage resistant electrical through-connector, which realizes a small integrated structure, has a small installation space and is easy to disassemble and assemble on the basis of meeting a higher pressure-bearing capacity.

[0006] In order to achieve the above-mentioned purpose, the utility model provides a high-voltage resistant electrical penetration joint, including a main body, a heat shrink tube and a conductor, the inner layer of the main body is a heat shrink tube, the heat shrink tube is installed on the outer layer of the conductor, the outer layer of the main body is a steel pipe that seals the conductor, the main body and the steel pipe are integrated in design, and both ends of the main body are installed on a low-temperature container through threads.

[0007] The conductor is a single conductor or multiple strands of wire.

[0008] The inner diameter of the heat shrink tubing is slightly larger than the outer diameter of the conductor.

[0009] Compared with the prior art, the utility model has the following beneficial effects:

[0010] The utility model does not require too many parts, and the main body, heat shrink tube and conductor are designed as an integrated whole. Before use, the conductor only needs to be shrunk through the heat shrink tube, and then it can be directly inserted into the interior of the main body without being taken out, and is sealed through the steel tubes on both sides to form a small whole to achieve higher pressure-bearing capacity, and then it is directly installed on the low-temperature container through the threads on both sides of the main body to achieve rapid installation of the large whole. A nut structure is also provided in the middle of the main body, which can be directly unscrewed when internal cleaning and maintenance are required without disassembling other parts. Its integrated design greatly reduces leakage points and has high flexibility and operability. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the utility model.

[0012] Description of reference numerals:

[0013] 1 is the main body, 2 is the heat shrink tube, and 3 is the conductor. DETAILED DESCRIPTION

[0014] The utility model is now further described with reference to the accompanying drawings.

[0015] See also Figure 1 The utility model provides a high-voltage resistant electrical penetration joint, including a main body 1, a heat shrink tube 2 and a conductor 3. The inner layer of the main body 1 is the heat shrink tube 2, the heat shrink tube 2 is installed on the outer layer of the conductor 3, the outer layer of the main body 1 is a steel tube that seals the conductor 3, the main body 1 and the steel tube are integrated, and both ends of the main body 1 are installed on a low-temperature container through threads.

[0016] The conductor 3 is a single conductor or a plurality of strands of wires.

[0017] The inner diameter of the heat shrink tube 2 is slightly larger than the outer diameter of the conductor 3 .

[0018] Working principle:

[0019] The utility model does not require much debugging when in use. After the conductor 3 is heat-shrunk by the heat shrink tube 2, the conductor 3 is passed into the interior of the main body 1. At this time, the steel pipes at both ends of the main body 1 realize the sealing of the conductor 3. The threaded structure at both ends of the main body 1 can be directly installed on the low-temperature container, which ensures the integrity of the container boundary, further reduces the risk of leakage and prolongs the service life.

[0020] The above are only preferred implementations of the present invention, which are only used to help understand the method and core ideas of the present application. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the idea of ​​the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

[0021] In the description of the present invention, it should be noted that the terms "upper", "lower", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0022] The utility model solves the problems of low pressure bearing capacity, leakage points in split structure, inconvenient installation and the like in the prior art. The main body, heat shrink tube and conductor are designed as an integrated whole and can be directly installed on the cryogenic container, thereby achieving higher pressure bearing capacity, greatly reducing leakage points and having high flexibility and operability.

Claims

1. A high voltage resistant electrical through-connector, characterized in that: The invention comprises a main body (1), a heat shrink tube (2) and a conductor (3), wherein the inner layer of the main body (1) is a heat shrink tube (2), the heat shrink tube (2) is installed on the outer layer of the conductor (3), the outer layer of the main body (1) is a steel tube that seals the conductor (3), the main body (1) and the steel tube are of an integrated design, and both ends of the main body (1) are installed on a low-temperature container by means of threads.

2. The high voltage resistant electrical through-connector according to claim 1, characterized in that: The conductor (3) is a single conductor or a plurality of wires.

3. The high voltage resistant electrical through-connector according to claim 1, characterized in that: The inner diameter of the heat shrink tube (2) is slightly larger than the outer diameter of the conductor (3).

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