Ultralow-temperature instrument-controlled electrical penetration assembly

Abstract

The utility model relates to the technical field of instrument-controlled penetration joints, in particular to an ultralow-temperature instrument-controlled electrical penetration assembly, which comprises a male terminal fixing assembly and a small-sized low-temperature joint, a cable clamp clamps a cable, a conductor in the cable is crimped with a female wiring terminal, the female wiring terminal is fixed through the female terminal fixing assembly, and the male terminal fixing assembly is connected with the small-sized low-temperature joint. The female wiring terminal is connected with the male wiring terminal in an inserted mode, the male terminal fixing assembly is connected with the small-sized low-temperature connector through threads, and a conductor in the small-sized low-temperature connector is connected with the male wiring terminal in a pressed mode and fixes the male wiring terminal on the male terminal fixing assembly. And during connection, direct connection can be achieved only through a flange, better air tightness is achieved, and the effects of being smaller in size, convenient and fast to install and disassemble, efficient and capable of reducing cost are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of instrumentation and control penetration joints, in particular to an ultra-low temperature instrumentation and control electrical penetration piece. Background Art

[0002] A through-joint is a connector used to connect cables and wires. Its function is to connect the conductors of two insulated cables to allow current to flow. At the same time, it realizes the electrical insulation, moisture-proof and waterproof, shock-resistant and oxidation-resistant functions of the joint.

[0003] In LNG receiving stations, LNG liquefaction plants, LNG transport ships, and transportation projects of cryogenic media such as alkanes and olefins in chemical plants, cryogenic submersible pumps are required for the transportation, loading and unloading of cryogenic media. The through-joint is a cryogenic instrumentation and control through-fitting that matches the cryogenic submersible pump.

[0004] In the prior art, double-flange cryogenic instrumentation penetrations and small cryogenic instrumentation penetrations are commonly used, but the former are larger in size and heavier in weight; the latter do not have an air cavity and do not have a gas pressure detection function; the connection between the core wire of the penetration and the cable is mostly crimped, and the cable needs to be re-crimped after removal, which is inefficient and will also cause cable loss.

[0005] Based on the above reasons, the utility model designs an ultra-low temperature instrumentation and control electrical penetration, which is connected to the cable by plugging and will not cause loss to the cable. While having pressure detection, it has better air tightness and expansion functions. Summary of the invention

[0006] The purpose of the utility model is to overcome the deficiencies of the prior art and provide an ultra-low temperature instrumentation and control electrical penetration piece, which is connected to a cable by plugging and does not cause loss to the cable, and has better air tightness and expansion functions while having pressure detection.

[0007] In order to achieve the above-mentioned purpose, the utility model provides an ultra-low temperature instrumentation and control electrical penetration part, including a cable clamp, a female terminal, a female terminal fixing assembly, a male terminal, a male terminal fixing assembly and a small low-temperature joint. The cable clamp clamps the cable, the conductor in the cable is crimped with the female terminal, the female terminal is fixed by the female terminal fixing assembly, the female terminal is plug-connected with the male terminal, the male terminal fixing assembly is connected to the small low-temperature joint by a thread, and the conductor in the small low-temperature joint is crimped with the male terminal and fixed to the male terminal fixing assembly.

[0008] The penetration pieces are respectively arranged on both sides of the connecting flange assembly through small low-temperature joints.

[0009] Small cryogenic joints are connected via conductors within the connecting flange assembly.

[0010] The female terminal fixing assembly and the male terminal fixing assembly are fixed and fitted together by means of bolts.

[0011] The middle part of the connecting flange assembly is symmetrically provided with air supply ports.

[0012] The cable clamp is connected to the female terminal fixing assembly by means of bolts.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] The utility model does not require too many parts. The cable is directly set in the penetration piece. The connection with the low-temperature joint can be achieved by directly plugging the female terminal and the male terminal, avoiding cable loss. An air supply port is provided on the connecting flange assembly, and an external pressure detection system or other extension system can be connected at any time. When connecting, it only needs to be directly connected through the flange, which has better air tightness, achieves a smaller size, convenient installation and disassembly, and efficient cost reduction. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the utility model.

[0016] Figure 2 It is a partially enlarged schematic diagram of the utility model.

[0017] Description of reference numerals:

[0018] 1 is a cable clamp, 2 is a female terminal, 3 is a female terminal fixing assembly, 4 is a male terminal, 5 is a male terminal fixing assembly, 6 is a small low-temperature connector, 7 is a connecting flange assembly, 8 is a cable, and 9 is an air supply port. DETAILED DESCRIPTION

[0019] The utility model is now further described with reference to the accompanying drawings.

[0020] See also Figures 1-2 The utility model provides an ultra-low temperature instrumentation and control electrical penetration component, including a cable clamp 1, a female terminal 2, a female terminal fixing component 3, a male terminal 4, a male terminal fixing component 5 and a small low-temperature connector 6. The cable clamp 1 clamps a cable 8, the conductor in the cable 8 is crimped with the female terminal 2, the female terminal 2 is fixed by the female terminal fixing component 3, the female terminal 2 is plug-connected with the male terminal 4, the male terminal fixing component 5 is connected to the small low-temperature connector 6 by a thread, and the conductor in the small low-temperature connector 6 is crimped with the male terminal 4 and fixed to the male terminal fixing component 5.

[0021] The penetration pieces are respectively arranged on both sides of the connecting flange assembly 7 through small low-temperature joints 6 .

[0022] The small cryogenic joint 6 is connected in the connecting flange assembly 7 via a conductor.

[0023] The female terminal fixing assembly 3 and the male terminal fixing assembly 5 are fixed and fitted together by means of bolts.

[0024] A gas supply port 9 is symmetrically arranged in the middle of the connecting flange assembly 7 .

[0025] The cable clamp 1 is connected to the female terminal fixing assembly 3 by means of bolts.

[0026] Working principle:

[0027] The utility model does not require excessive debugging when in use. The front end cable 8 of the penetration piece is clamped by the cable clamp 1, and the conductor in the rear end of the cable 8 is crimped by the female terminal 2, and the female terminal 2 is fixed by the female terminal fixing component 3. At the same time, the male terminal 4 is crimped on the male terminal fixing component 5 through the conductor inside the small low-temperature joint 6. The other end of the small low-temperature joint 6 passes through the connecting flange component 7 and is connected through the internal conductor to form a symmetrical pair of penetration pieces. When in use, it is only necessary to insert the cable clamp 1 into the thread on the female terminal fixing component 3. At the same time, the female terminal 2 and the male terminal 4 are plugged in, and then the bolts on the cable clamp 1 are tightened.

[0028] 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.

[0029] 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.

[0030] The utility model solves the problems of large size, heavy weight, lack of gas detection device, cable loss, low installation and maintenance efficiency and other problems in the prior art as a whole. The cable is directly arranged in the penetration piece, and the connection with the low-temperature joint can be achieved by directly plugging the female terminal and the male terminal, thus avoiding the loss of the cable. In addition, a gas replenishment port is provided on the connecting flange assembly, so that an external pressure detection system or other extension system can be connected at any time. When connecting, it only needs to be directly connected through the flange, which has better air tightness, achieves a smaller size, convenient installation and disassembly, and efficient cost reduction.

Claims

1. An ultra-low temperature instrumentation and control electrical penetration, characterized in that: The invention comprises a cable clamp (1), a female terminal (2), a female terminal fixing component (3), a male terminal (4), a male terminal fixing component (5) and a small low-temperature connector (6), wherein the cable clamp (1) clamps a cable (8), a conductor in the cable (8) is crimped to the female terminal (2), the female terminal (2) is fixed by the female terminal fixing component (3), the female terminal (2) is plug-connected to the male terminal (4), the male terminal fixing component (5) is connected to the small low-temperature connector (6) by means of threads, and the conductor in the small low-temperature connector (6) is crimped to the male terminal (4) and fixed to the male terminal fixing component (5).

2. The ultra-low temperature instrumentation and control electrical penetration piece according to claim 1, characterized in that: The penetration pieces are respectively arranged on both sides of the connecting flange assembly (7) through the small low-temperature joint (6).

3. The ultra-low temperature instrumentation and control electrical penetration piece according to claim 2, characterized in that: The small low-temperature joint (6) is connected via a conductor inside the connecting flange assembly (7).

4. The ultra-low temperature instrumentation and control electrical penetration piece according to claim 1, characterized in that: The female terminal fixing assembly (3) and the male terminal fixing assembly (5) are fixedly fitted together by means of bolts.

5. The ultra-low temperature instrumentation and control electrical penetration piece according to claim 1, characterized in that: A gas supply port (9) is symmetrically arranged in the middle of the connecting flange assembly (7).

6. The ultra-low temperature instrumentation and control electrical penetration piece according to claim 1, characterized in that: The cable clamp (1) is connected to the female terminal fixing assembly (3) via bolts.

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