Power feed-through assembly

Abstract

The utility model discloses a power supply feed-through assembly, and relates to the technical field of immersed pumps, the power supply feed-through assembly comprises a first connecting flange and a second connecting flange, a sealing ring is arranged between the first connecting flange and the second connecting flange, the first connecting flange is provided with a first conductive element, the second connecting flange is provided with a second conductive element, and the first conductive element and the second conductive element are electrically connected. And the first conductive element is electrically connected with the second conductive element. The sealing ring is arranged between the first connecting flange and the second connecting flange for sealing, so that the sealing performance of the whole power supply feed-through assembly is improved, and the stability and safety of electrified operation of the immersed pump are guaranteed.

Description

Technical Field

[0001] This application relates to the field of submersible pump technology, specifically to a power supply component. Background Technology

[0002] The cryogenic submersible pump is installed in the lower part of the pump well inside the cryogenic storage tank. The power supply of the submersible pump needs to be connected to the outside through the pump well in order to be powered on and operated. The inside of the pump well contains flammable and explosive LNG and natural gas, while the outside is the atmospheric environment. The power connection point is a high-risk location for leakage. In order to ensure the stability and safety of the submersible pump's powered operation, a power supply component with good sealing is required. Utility Model Content

[0003] The main objective of this application is to provide a power supply component that addresses the aforementioned technical problems.

[0004] The technical solution adopted in this application is as follows:

[0005] A power supply assembly includes a first connecting flange and a second connecting flange, a sealing ring is provided between the first connecting flange and the second connecting flange, a first conductive element is provided on the first connecting flange, a second conductive element is provided on the second connecting flange, and the first conductive element and the second conductive element are electrically connected.

[0006] Optionally, the first connecting flange and the second connecting flange are fixed together by bolts.

[0007] Optionally, the first connecting flange is provided with a first mounting hole for assembling the first conductive element.

[0008] Optionally, the first conductive element includes a first conductor, which is encapsulated within the first mounting hole by a first encapsulation material.

[0009] Optionally, the first encapsulation material includes a nickel alloy welded to the outer periphery of the first conductor and an encapsulation glass wrapped around the nickel alloy.

[0010] Optionally, the second connecting flange is provided with a second mounting hole for assembling the second conductive element.

[0011] Optionally, the second conductive element includes a second conductor, which is encapsulated within the second mounting hole by a second encapsulation material.

[0012] Optionally, the second encapsulation material includes a nickel alloy welded to the outer periphery of the second conductor and an encapsulation glass wrapped around the nickel alloy.

[0013] Optionally, a cavity is formed between the first connecting flange and the second connecting flange, and the two ends of the second connecting flange are provided with a first countersunk bolt hole and a second countersunk bolt hole that communicate with the cavity, and countersunk bolts with sealing rings are provided in the first countersunk bolt hole and the second countersunk bolt hole.

[0014] Optionally, the first conductive element and the second conductive element are interlocked.

[0015] Compared with the prior art, the beneficial effects of this application are:

[0016] The power supply assembly proposed in this application improves the sealing performance of the entire power supply assembly by setting a sealing ring between the first connecting flange and the second connecting flange, thereby ensuring the stability and safety of the submersible pump's energized operation. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the power supply feedthrough component provided in an embodiment of this application;

[0018] Figure 2 This is a sectional view of the first connecting flange;

[0019] Figure 3 This is a sectional view of the second connecting flange.

[0020] Explanation of the labels in the attached drawings:

[0021] 1-First connecting flange, 2-Second connecting flange, 3-First conductive unit, 301-First conductor, 302-First encapsulation material, 4-Second conductive unit, 401-Second conductor, 402-Second encapsulation material, 5-Nickel alloy, 6-Encapsulation glass, 7-Bolt, 8-Sealing ring, 9-Cavity, 10-First countersunk bolt hole, 11-Second countersunk bolt hole, 12-Annular groove, 13-Socket. Detailed Implementation

[0022] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0023] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0024] In this application, unless otherwise expressly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0025] Furthermore, if the embodiments of this application involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0026] See attached document Figures 1 to 3 As shown in the figure, this application embodiment provides a power supply assembly, including a first connecting flange 1 and a second connecting flange 2. The first connecting flange 1 and the second connecting flange 2 are assembled and connected by bolts 7. The first connecting flange 1 is fixedly connected to the top cover of the power cable of the submersible pump, and the second connecting flange 2 is fixedly connected to the external flange of the submersible pump. Simultaneously, a first conductive element is provided on the first connecting flange 1, and a second conductive element is provided on the second connecting flange 2. The first and second conductive elements are electrically connected, so that the cable located inside the pump well is connected to the first conductive element, and the cable located outside the pump well is connected to the second conductive element. Thus, the submersible pump connects to the outside world through the first and second conductive elements, enabling the submersible pump to operate. An annular groove 12 is provided on the flange end face of the second connecting flange 2 facing the first connecting flange 1. A sealing ring 8 is installed in the annular groove 12. It can be imagined that after the first connecting flange 1 and the second connecting flange 2 are assembled by bolts 7, a seal is formed between the first connecting flange 1 and the second connecting flange 2 by the sealing ring 8, thereby improving the sealing performance of the entire power supply assembly and ensuring the stable and safe operation of the submersible pump.

[0027] In the above, the first conductive element and the second conductive element, as terminals, each include both positive and negative terminals. Specifically, for example... Figure 2 As shown, the first connecting flange 1 is provided with a first mounting hole for assembling a first conductive element, wherein the first conductive element includes a first conductor 301, the first conductor 301 being made of metallic copper, and is encapsulated within the first mounting hole by a first encapsulation material 302. In one embodiment, the first encapsulation material 302 includes a nickel alloy 5 welded to the outer periphery of the first conductor 301 and an encapsulation glass 6 fused to the nickel alloy 5. Similarly, as... Figure 3 As shown, the second connecting flange 2 is provided with a second mounting hole for assembling the second conductive element, wherein the second conductive element includes a second conductor 401. The second conductor 401 is made of copper and is encapsulated in the second mounting hole by a second encapsulation material 402. The second encapsulation material 402 includes a nickel alloy 5 welded to the outer periphery of the second conductor 401 and an encapsulation glass 6 that is fused to the nickel alloy 5.

[0028] Meanwhile, in the above embodiments, the first conductive element and the second conductive element are interlocked. Specifically, the second conductor 401 is provided with a socket 13 on the side adjacent to the first conductor 301. After the first connecting flange 1 and the second connecting flange 2 are assembled together by bolts 7, the first conductor 301 is inserted into the socket 13 at one end of the second conductor 401, and the first conductor 301 and the second conductor 401 are in contact, thereby forming an electrical connection.

[0029] In this embodiment, as Figure 3 As shown, the second connecting flange 2 has a recessed cavity on the side facing the first connecting flange 1. After the first connecting flange 1 and the second connecting flange 2 are assembled, a cavity 9 is formed between them. The two ends of the second connecting flange 2 are provided with a first countersunk bolt hole 10 and a second countersunk bolt hole 11 that communicate with the cavity 9. Nitrogen gas is introduced into the first countersunk bolt hole 10 for purging, and the gas is discharged through the second countersunk bolt hole 11. At the same time, countersunk bolts are installed in the first countersunk bolt hole 10 and the second countersunk bolt hole 11. The countersunk bolts can be removed when purging the cavity 9. After purging, the countersunk bolts are screwed into the first countersunk bolt hole 10 and the second countersunk bolt hole 11, and a sealing ring is fitted on the countersunk bolt. After the countersunk bolts are screwed in, the sealing ring is pressed tightly against the first countersunk bolt hole 10 and the second countersunk bolt hole 11 to form a seal.

[0030] The above description is only a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A power feedthrough assembly, characterized by, The first connecting flange and the second connecting flange are provided with a sealing ring therebetween, the first connecting flange is provided with a first conductive element, the second connecting flange is provided with a second conductive element, and the first conductive element and the second conductive element are electrically connected; the first connecting flange is provided with a first assembly hole for assembling the first conductive element; and the second connecting flange is provided with a second assembly hole for assembling the second conductive element.

2. The power feedthrough assembly of claim 1, wherein, The first connecting flange and the second connecting flange are fixed through bolts.

3. The power feedthrough assembly of claim 1, wherein, The first conductive element comprises a first conductor which is encapsulated in the first assembly hole through a first encapsulating material.

4. The power feedthrough assembly of claim 3, wherein, The first encapsulating material comprises a nickel alloy welded to the outer periphery of the first conductor and encapsulating glass wrapped outside the nickel alloy.

5. The power feedthrough assembly of claim 1, wherein, The second conductive element comprises a second conductor which is encapsulated in the second assembly hole through a second encapsulating material.

6. The power feedthrough assembly of claim 5, wherein, The second encapsulating material comprises a nickel alloy welded to the outer periphery of the second conductor and encapsulating glass wrapped outside the nickel alloy.

7. The power feedthrough assembly of claim 1, wherein, A cavity is formed between the first connecting flange and the second connecting flange, both ends of the second connecting flange are provided with a first countersunk bolt hole and a second countersunk bolt hole which are in communication with the cavity, and countersunk bolts with sealing rings are arranged in the first countersunk bolt hole and the second countersunk bolt hole.

8. The power feedthrough assembly of claim 1, wherein, The first conductive element and the second conductive element are mutually inserted.

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