CN211975322U - Submersible pump electrical feedthrough - Google Patents
Submersible pump electrical feedthrough Download PDFInfo
- Publication number
- CN211975322U CN211975322U CN202020233978.3U CN202020233978U CN211975322U CN 211975322 U CN211975322 U CN 211975322U CN 202020233978 U CN202020233978 U CN 202020233978U CN 211975322 U CN211975322 U CN 211975322U
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- feed
- lead
- medium
- insulator
- submersible pump
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Abstract
The utility model relates to an immersed pump electric feed through belongs to cryogenic liquids conveying equipment technical field. The utility model provides a seal structure that the immersed pump electric feed through that exists now set up unreasonable problem. The utility model discloses a: the feed-through lead is used for circuit communication, the front side of the feed-through lead is a medium side, and the rear side of the feed-through lead is an atmosphere side; feed through the outside front end cover of wire and be equipped with the medium side flange that is used for the installation, the rear end of medium side flange be equipped with in proper order and feed through lid and feed through the body, feed through lid and feed through the body and feed through the wire between all be equipped with rather than the sealed compact heap of conical connection.
Description
Technical Field
The utility model relates to an immersed pump electric feed through belongs to cryogenic liquids conveying equipment technical field.
Background
The immersed pump is used for conveying low-temperature, dangerous, easily gasified and non-conductive liquid such as liquefied natural gas and the like, the immersed pump and the motor are immersed in the liquid during working, and sometimes the pump is also provided with a vibration sensor; the immersed pump needs to be connected with external power, instruments and the like through leads, and meanwhile, the immersed pump motor and the lead of the vibration sensor need to be led out from the low-temperature medium through electric feed-through. The electric feed-through needs to meet the requirements of low-temperature sealing, electric explosion prevention and the like, and the reliability of the electric feed-through directly influences the safety of the immersed pump system.
The current electric feed-through generally has the problem of not tight seal, obviously can not accord with the requirement of sealed and connection when being used in the structure of immersed pump installation in the cryogenic tank.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior immersed pump circuit connection and provides an immersed pump electric feed-through which is suitable for low-temperature and dangerous media; the feed-through lead adopts injection molding process and self-tightening conical surface sealing, and has high reliability and good safety
The utility model discloses an adopt following technical scheme to realize:
an submersible pump electrical feedthrough comprising:
the feed-through lead is used for circuit communication, the front side of the feed-through lead is a medium side, and the rear side of the feed-through lead is an atmosphere side;
feed through the outside front end cover of wire and be equipped with the medium side flange that is used for the installation, the rear end of medium side flange be equipped with in proper order and feed through lid and feed through the body, feed through lid and feed through the body and feed through the wire between all be equipped with rather than the sealed compact heap of conical connection.
Install through medium side flange, feed through lid and the inseparable lock of body of feeding through on the flange, will be closed completely with the clearance of wire of feeding through sealed compact heap simultaneously, prevent that the material from spilling over, realize the complete sealing of atmosphere side and medium side.
Preferably, the feed-through lead is of a three-layer structure and comprises a feed-through conductor in the middle, an insulator sleeved on the outer side of the feed-through conductor and a protective sleeve on the outer side;
the insulator is injected on the feed-through conductor, the insulator and the protective sleeve are matched and sealed through a conical surface structure, and one side with a large area of the insulator is close to the medium side. The insulating material and the protective sleeve are sealed by conical surface matching, the sealing between the insulating material and the protective sleeve is tighter under the action of medium pressure, and the medium leakage can be effectively avoided
Preferably, a first gasket is arranged between the medium-side flange and the feed-through cover;
and a second sealing gasket is arranged at the joint of the feed-through cover and the feed-through body. And a sealing gasket is added to prevent the materials from overflowing from the joint.
Preferably, a buffer cavity is arranged in the middle of one side of the feed-through body corresponding to the feed-through cover. The material that can protect the medium side through the cushion chamber can not leak the atmosphere side completely, even there is the material to leak the cushion chamber, also can keep in the cushion chamber, prevents to leak the atmosphere side.
The utility model has the advantages that:
(1) the utility model discloses an immersed pump electric feed through is provided with medium side flange, feed through lid and feed through body, closely cooperates through the three and seals, cooperates sealed compact heap will feed through the wire totally sealed, prevents that atmosphere side and medium side from communicating, totally seals when fine realization wire is connected;
(2) the electric feed-through of the immersed pump has the advantages that the insulator on the feed-through conductor is molded into a cone in an injection mode and is sealed with the protective sleeve in the cone shape, so that the insulator and the protective sleeve are sealed more tightly under the pressure action of the medium side, and the sealing performance is better;
(3) immersed pump electric feed through, be provided with the cushion chamber, make the medium directly leak the possibility greatly reduced to the atmosphere side through the cushion chamber.
Drawings
Fig. 1 is a front view of an embodiment of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 in cross-section;
in the figure: 1. a media side; 2. a media-side flange; 3. sealing the pressing block; 4. a first gasket; 5. a feed-through cover; 6. a second gasket; 7. a buffer chamber; 8. a feedthrough body; 9. a feedthrough lead; 10. a feedthrough conductor; 11. an insulator; 12. and (6) a protective sleeve.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
1-2, an electric submersible pump feed-through, according to the present invention, comprises:
a feed-through lead 9 for circuit communication, the feed-through lead 9 having a dielectric side 1 on the front side and an atmospheric side on the rear side;
the front end of the outer side of the feed-through lead 9 is sleeved with a medium side flange 2 for installation, the rear end of the medium side flange 2 is sequentially provided with a feed-through cover 5 and a feed-through body 8, and sealing compression blocks 3 which are in conical connection with the feed-through cover 5, the feed-through body 8 and the feed-through lead 9 are arranged between the feed-through cover 5 and the feed-through body 8;
preferably, the feed-through lead 9 is a three-layer structure, including a feed-through conductor 10 in the middle, an insulator 11 sleeved on the outer side of the feed-through conductor 10, and a protective sleeve 12 on the outer side;
the insulator 11 is injection molded on the feed-through conductor 10, the insulator 11 and the protective sleeve 12 are sealed by matching conical structures, and the side with large area of the insulator 11 is close to the medium side 1.
Preferably, a first gasket 4 is arranged between the medium-side flange 2 and the feed-through lid 5;
and a second sealing gasket 6 is arranged at the joint of the feed-through cover 5 and the feed-through body 8.
Preferably, a buffer cavity 7 is arranged in the middle of one side of the feed-through body 8 corresponding to the feed-through cover 5.
The utility model discloses a use as follows:
feed-through leads 9 extend through the feed-through lid 5 and the feed-through body 8, and are connected at their ends to leads from the medium side 1 and the atmosphere side, respectively, so that they form a passage. Two sealing compression blocks 3 are arranged on the periphery of each sealed feed-through lead 9 to fix the feed-through lead and seal the feed-through lead so as to prevent a medium from leaking to the buffer cavity 7 and the atmosphere side. The buffer chamber 7 is arranged so that the possibility of direct leakage of the medium to the atmosphere side is greatly reduced.
The feed-through conductors 9 are of three-layer construction: the core is a feed-through conductor 10, with an insulator 11 in the middle and a protective sheath 12 on the outside. A plurality of ring grooves are processed on the feed-through conductor 10, the insulator 11 is attached to the feed-through conductor by adopting an injection molding process, and the feed-through conductor 10 and the insulator 11 are firm, compact and gapless; the insulating material 11 and the protective sleeve 12 are sealed by conical surface matching, and the sealing between the insulating material and the protective sleeve is tighter under the action of medium pressure, so that the medium leakage can be effectively avoided.
The utility model discloses mainly apply to in the cryogenic liquids carries, the immersed pump carries out the place of circuit intercommunication with the outside.
Of course, the above description is only a preferred embodiment of the present invention, and should not be taken as limiting the scope of the embodiments of the present invention. The present invention is not limited to the above examples, and the technical field of the present invention is equivalent to the changes and improvements made in the actual range of the present invention, which should be attributed to the patent coverage of the present invention.
Claims (4)
1. An submersible pump electrical feedthrough comprising:
a feed-through lead (9) for circuit communication, the feed-through lead (9) having a dielectric side (1) on a front side and an atmospheric side on a rear side;
feed through the outside front end cover of wire (9) and be equipped with medium side flange (2) that are used for the installation, the rear end of medium side flange (2) be equipped with in proper order and feed through lid (5) and feed through body (8), feed through lid (5) and feed through body (8) and feed through wire (9) between all be equipped with rather than the sealed compact heap (3) of conical connection.
2. The submersible pump electrical feedthrough of claim 1, wherein: the feed-through lead (9) is of a three-layer structure and comprises a feed-through conductor (10) in the middle, an insulator (11) sleeved on the outer side of the feed-through conductor (10) and a protective sleeve (12) on the outer side;
the insulator (11) is injected on the feed-through conductor (10), the insulator (11) and the protective sleeve (12) are matched and sealed through a conical surface structure, and the side with a large area of the insulator (11) is close to the medium side (1).
3. The submersible pump electrical feedthrough of claim 1, wherein: a first sealing gasket (4) is arranged between the medium side flange (2) and the feed-through cover (5);
and a second sealing gasket (6) is arranged at the joint of the feed-through cover (5) and the feed-through body (8).
4. The submersible pump electrical feedthrough of any of claims 1-3, wherein: the feed-through body (8) is provided with a buffer cavity (7) in the middle of one side corresponding to the feed-through cover (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020233978.3U CN211975322U (en) | 2020-02-29 | 2020-02-29 | Submersible pump electrical feedthrough |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020233978.3U CN211975322U (en) | 2020-02-29 | 2020-02-29 | Submersible pump electrical feedthrough |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211975322U true CN211975322U (en) | 2020-11-20 |
Family
ID=73376941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020233978.3U Active CN211975322U (en) | 2020-02-29 | 2020-02-29 | Submersible pump electrical feedthrough |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211975322U (en) |
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2020
- 2020-02-29 CN CN202020233978.3U patent/CN211975322U/en active Active
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