CN108767804B - Double feed-through sealing device for power cable connection - Google Patents
Double feed-through sealing device for power cable connection Download PDFInfo
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- CN108767804B CN108767804B CN201810657489.8A CN201810657489A CN108767804B CN 108767804 B CN108767804 B CN 108767804B CN 201810657489 A CN201810657489 A CN 201810657489A CN 108767804 B CN108767804 B CN 108767804B
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- section
- temperature section
- electrode
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- air pressure
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- 238000007789 sealing Methods 0.000 title claims abstract description 73
- 238000002955 isolation Methods 0.000 claims abstract description 64
- 238000001514 detection method Methods 0.000 claims abstract description 24
- 230000000149 penetrating effect Effects 0.000 claims abstract description 6
- 239000000945 filler Substances 0.000 claims description 15
- 239000011261 inert gas Substances 0.000 claims description 13
- 230000001681 protective effect Effects 0.000 claims description 6
- 238000005056 compaction Methods 0.000 claims description 5
- 230000009977 dual effect Effects 0.000 claims 6
- 230000000694 effects Effects 0.000 description 15
- 238000012856 packing Methods 0.000 description 11
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 7
- 239000004020 conductor Substances 0.000 description 7
- 229910052802 copper Inorganic materials 0.000 description 7
- 239000010949 copper Substances 0.000 description 7
- 230000006835 compression Effects 0.000 description 6
- 238000007906 compression Methods 0.000 description 6
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 150000001335 aliphatic alkanes Chemical class 0.000 description 2
- 150000001336 alkenes Chemical class 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- WWYNJERNGUHSAO-XUDSTZEESA-N (+)-Norgestrel Chemical compound O=C1CC[C@@H]2[C@H]3CC[C@](CC)([C@](CC4)(O)C#C)[C@@H]4[C@@H]3CCC2=C1 WWYNJERNGUHSAO-XUDSTZEESA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 239000011335 coal coke Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000008093 supporting effect Effects 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G15/00—Cable fittings
- H02G15/20—Cable fittings for cables filled with or surrounded by gas or oil
- H02G15/24—Cable junctions
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G15/00—Cable fittings
- H02G15/20—Cable fittings for cables filled with or surrounded by gas or oil
- H02G15/28—Cable fittings for cables filled with or surrounded by gas or oil structurally associated with devices for indicating the presence or location of non-electric faults
Landscapes
- Cable Accessories (AREA)
Abstract
The invention discloses a double-feed-through sealing device for power cable connection, which relates to the field of cable sealing joints, and comprises a normal temperature section, a low temperature section and an electrode penetrating between the normal temperature section and the low temperature section, and is characterized in that: an intermediate isolation section is arranged between the normal temperature section and the low temperature section, the intermediate isolation section is in sealing connection with the normal temperature section and the low temperature Duan Jun, the electrode is arranged in the intermediate isolation section, two ends of the electrode are respectively penetrated and sealed in the normal temperature section and the low temperature section, and the electrode is in sealing connection with the normal temperature section and the low temperature Duan Jun; and air pressure detection ports are arranged between the middle isolation section and the low-temperature section and between the middle isolation section and the normal-temperature section. The double-feed-through sealing device for power cable connection can conveniently monitor air pressure and take quick and effective measures for leakage.
Description
Technical Field
The invention relates to a cable sealing joint, in particular to a double-feed-through sealing device for power cable connection.
Background
At present, low-temperature immersed pumps are required to be used for conveying low-temperature mediums such as alkane, alkene and the like in the conveying projects of low-temperature mediums such as LNG receiving stations, LNG liquefaction plants, LNG transport ships, floating LNG liquefaction storage devices, coal coke oven gas methanation to prepare LNG devices and chemical devices, loading and unloading vehicles and the like, and the low-temperature mediums such as LNG, alkane, alkene and the like have the characteristics of low temperature, flammability, explosiveness and vaporization. Therefore, the pump for conveying the medium has severe working conditions, very strict requirements on materials, sealing and other aspects, and the equipment has the requirements of safety and reliability in sealing.
The patent document of China patent publication No. CN106252907A discloses a power cable sealing transmission mechanism for a low-temperature immersed pump, which comprises a hollow cylindrical first insulating sleeve with one end open and the other end sealed, a hollow cylindrical second insulating sleeve with two ends open, and a copper conductor penetrating through the sealed end of the first insulating sleeve and fixedly and hermetically connected with the sealed end; the first insulating sleeve is used for fixedly and hermetically connecting with a motor end cover of the low-temperature immersed pump, and an opening end of the first insulating sleeve penetrates through the motor end cover to be led into the low-temperature immersed pump during connection; one end of the second insulating sleeve is fixedly and hermetically connected with the sealing end of the first insulating sleeve, and the other end of the second insulating sleeve is communicated with the outside of the low-temperature immersed pump; the first end of the copper conductor is positioned in the first insulating sleeve and is used for being connected with a motor wire; the second end of the copper conductor is positioned in the second insulating sleeve and is used for being connected with an external low-temperature power cable.
According to the technical scheme, the copper conductor penetrates through the sealing end of the first insulating sleeve, the two ends of the copper conductor are respectively connected with the motor wire and the external low-temperature power cable, the two ends of the copper conductor are respectively located at the high-pressure side and the low-pressure side, the high-pressure side liquid and the low-pressure side liquid are isolated in a pressing sealing mode between the first insulating sleeve and the motor end cover and between the copper conductor and the sealing pipe of the first insulating sleeve, and if leakage occurs at the two sides of the high pressure and the low pressure, the performance of different parts can be influenced.
Disclosure of Invention
The invention aims to provide a double-feed-through sealing device for connecting a power cable, which can monitor air pressure conveniently and take rapid and effective measures for leakage.
The technical aim of the invention is realized by the following technical scheme: the double-feed-through sealing device for power cable connection comprises a normal temperature section, a low temperature section and an electrode, wherein the normal temperature section and the low temperature section are connected, the electrode penetrates through the normal temperature section and the low temperature section, an intermediate isolation section is arranged between the normal temperature section and the low temperature section, the intermediate isolation section is in sealing connection with the normal temperature section and the low temperature Duan Jun, the electrode is arranged in the intermediate isolation section, two ends of the electrode penetrate through the normal temperature section and the low temperature section respectively, and the electrode is in sealing connection with the normal temperature section and the low temperature Duan Jun; and air pressure detection ports are arranged between the middle isolation section and the low-temperature section and between the middle isolation section and the normal-temperature section.
Through adopting above-mentioned technical scheme, set up the interlude section between normal atmospheric temperature section and low temperature section, can play the effect of mutual isolation to normal atmospheric temperature section and low temperature section, and interlude section and normal atmospheric temperature section and low temperature section all keep sealing connection, then can keep the inside atmospheric pressure of interlude section stable, utilize the atmospheric pressure detection mouth in two positions, just can carry out the atmospheric pressure monitoring to the position between low temperature section and the interlude section and between normal atmospheric temperature section and the interlude section respectively, because during normal work, the atmospheric pressure of low temperature section is higher than the interlude section, the atmospheric pressure of normal atmospheric temperature section is close to atmospheric pressure and is less than the interlude section, then monitor the in-process, regard the atmospheric pressure value of interlude section as a standard reference value, and utilize the atmospheric pressure detection mouth to carry out real-time monitoring, once the atmospheric pressure of which atmospheric pressure detection mouth department changes, then indicate this department has taken the leakage, just can take the measure to take the solution fast, can effectively avoid taking the follow-up problem because of leaking and can in time solve.
The invention is further provided with: and sealing connection structures are arranged between the middle isolation section and the low-temperature section and between the middle isolation section and the normal-temperature section, and each sealing connection structure comprises a middle flange which is in sealing connection with the middle isolation section and is in sealing connection with the normal-temperature section or the low-temperature section.
Through adopting above-mentioned technical scheme, all connect the intermediate flange at the both ends of intermediate isolation section to the intermediate flange at both ends can connect normal atmospheric temperature section and low temperature section respectively, because utilize the intermediate flange's because of the reason, thereby realized intermediate flange and normal atmospheric temperature section, low temperature section between can dismantle the relation of connection, easy to assemble and maintenance, and can realize good sealed effect.
The invention is further provided with: the air pressure detection port is arranged on the middle flange and is communicated with the middle isolation section or the normal temperature section.
By adopting the technical scheme, the air pressure detection port is arranged on the middle flange, so that air pressure is conveniently monitored, and if the air pressure detection port is communicated with the middle isolation section, when the air pressure of the air pressure detection port close to the low-temperature section is increased, leakage is indicated between the low-temperature section and the middle isolation section; when the air pressure near the air pressure detecting port at the normal temperature section decreases, it is indicated that leakage occurs between the normal temperature section and the intermediate isolation section. If the air pressure detecting port near the normal temperature section is communicated with the normal temperature section, when the air pressure of the air pressure detecting port increases, it is indicated that leakage occurs between the intermediate isolation section and the normal temperature section.
The invention is further provided with: the electrode is sealed with the middle flange and is detachably connected with the middle flange, and sealing filler is arranged between the electrode and the middle flange.
By adopting the technical scheme, the electrode is convenient to disassemble and assemble, the electrode is convenient to overhaul and replace, and the sealing filler is utilized to stably connect the electrode and the middle flange, so that good sealing performance is achieved.
The invention is further provided with: one side of the middle flange, which is away from the middle isolation section, is provided with a compression block which is sleeved on the electrode and is arranged between the electrode and the middle flange for tightly sealing the filler.
Through adopting above-mentioned technical scheme, utilize the compact heap can play tight effect to sealing filler, further promote the sealed effect between electrode and the intermediate flange, also rely on the compact heap to play good sealed cladding effect to the outside of electrode when the electrode wears to locate the intermediate flange.
The invention is further provided with: one side of the compression block, which is away from the middle flange, is provided with a locking plate, and the locking plate is abutted against the compression block and is provided with a locking bolt which is connected with the middle flange in a penetrating way.
Through adopting above-mentioned technical scheme, rotate the lock bolt, can support the compact heap tightly in intermediate flange terminal surface, simultaneously, make the compact heap can support tightly in sealing filler, make sealing filler produce deformation, further fill the space between intermediate flange and the motor, promote the connection stability between sealing filler, compact heap and the intermediate flange, and then promote sealing performance.
The invention is further provided with: one end of the compaction block, which is away from the middle flange, is detachably connected with an insulating sleeve, and the electrode penetrates through the insulating sleeve.
Through adopting above-mentioned technical scheme, can play good protection effect to the link of electrode to be convenient for install insulating sleeve.
The invention is further provided with: the middle isolation section is communicated with an inert gas inlet end and an inert gas outlet end.
Through adopting above-mentioned technical scheme, can be through inert gas entering the end and fill inert gas to the inside of interlude section to play the guard action to the electrode, make the electrode interlude work in good insulating environment, promote operational reliability.
The invention is further provided with: the electrode is arranged outside the middle isolation section and is sleeved with an insulating protective tube.
By adopting the technical scheme, the insulating protective tube is utilized to protect the electrode, so that the working reliability is improved.
The invention is further provided with: the end part of the insulating protection tube extends to the sealing connection structure and is abutted against the sealing connection structure.
By adopting the technical scheme, the insulating protective tube stretches into the sealing connection structure, so that a certain supporting effect can be achieved on the stability of the sealing connection structure, and the sealing connection structure is matched, so that the sealing effect between the electrode and the middle flange can be improved.
In summary, the invention has the following beneficial effects:
the method comprises the following steps: the insulating protective tube sleeved outside the combined electrode and the inert gas filled into the middle isolation section can double-protect the part of the electrode positioned in the middle isolation section, so that the working reliability is improved;
and two,: the air pressure detection port on the middle flange can be used for realizing real-time monitoring on the air pressure in the middle separation section, so that whether leakage occurs in the normal-temperature section and the low-temperature section or not is judged, and measures can be taken rapidly and effectively;
and thirdly,: the end part of the insulating protection pipe extends into the middle flange, the compression block and the locking block are matched, and the sealing filler is arranged between the compression block and the end part of the insulating protection pipe, so that the sealing performance between the electrode and the middle flange is improved.
Drawings
FIG. 1 is a cross-sectional view of the present embodiment;
fig. 2 is an enlarged view of a portion a of fig. 1, which is mainly used for representing the connection relationship between the electrode and the intermediate flange.
Reference numerals: 1. a normal temperature section; 2. an intermediate isolation section; 3. a low temperature section; 4. an air pressure detection port; 5. a sealing connection structure; 51. an intermediate flange; 52. a metal wrap pad; 6. sealing filler; 7. a compaction block; 8. a locking plate; 9. a locking bolt; 10. an insulating sleeve; 11. an insulating protective tube; 12. an inert gas inlet end; 13. an inert gas outlet port; 14. an electrode; 15. a connecting disc; 16. a bolt; 17. a nut; 18. a connection hole; 19. a mounting hole; 20. and (5) abutting the block.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The double feed-through sealing device for power cable connection is shown by referring to FIG. 1, and comprises a low-temperature section 3, a middle isolation section 2 and a normal-temperature section 1 which are sequentially arranged from left to right, wherein the three sections are coaxially arranged and are of hollow cylindrical structures, and sealing connection structures 5 are arranged between the adjacent low-temperature section 3 and the middle isolation section 2 and between the normal-temperature section 1 and the middle isolation section 2, so that three separated and non-communicated spaces are formed; at least one electrode 14 is arranged in the middle isolation section 2, the number of the electrodes 14 can be determined according to actual use conditions, and if a plurality of electrodes 14 are used, the plurality of electrodes 14 are arranged in parallel; the two ends of the electrode 14 extend to the low temperature section 3 and the normal temperature section 1 respectively, and the two ends of the electrode 14 are respectively penetrated and connected with the sealing connection structure 5 in a sealing way, so that the two ends of the electrode 14 can be normally connected with the power cable on the side of the low temperature section 3 and the power cable on the side of the normal temperature section 1 respectively.
For easy installation and disassembly, the two ends of the middle isolation section 2, the end of the low-temperature section 3 and the end of the normal-temperature section 1 facing the middle isolation section 2 are integrally formed with connecting discs 15 with diameters larger than the respective cylinder diameters, and the connecting discs 15 are connected to the sealing connection structure 5 through bolts 16 and nuts 17. The sealing connection structure 5 comprises an intermediate flange 51 detachably connected with the connecting discs 15, the intermediate flange 51 is in a solid disc shape, the diameter of the intermediate flange 51 is similar to that of the connecting discs 15, a plurality of connection holes 18 for penetrating bolts 16 are uniformly formed in the position, close to the edge, of the intermediate flange 51 along the circumferential direction, two ends of each bolt 16 penetrate through one connecting disc 15 respectively, and the connecting discs 15 and the intermediate flange 51 are fixed by nuts 17 at two ends of each bolt 16. In order to improve the sealing performance between the intermediate flange 51 and the connecting disc 15, the sealing connection structure 5 further comprises a metal winding pad 52 arranged between the end face of the intermediate flange 51 and the end face of the connecting disc 15, and under the action of the bolts 16 and nuts 17, the metal winding pad 52 can be abutted against the end face of the intermediate flange 51 by using the connecting disc 15, so that the sealing performance between the two is improved.
As shown in fig. 1 and 2, in order to mount the electrode 14 on the intermediate flange 51, the intermediate flange 51 is provided with a mounting hole 19 for penetrating the electrode 14, and in order to improve the sealing performance between the electrode 14 and the intermediate flange 51 after mounting, a gap between the electrode 14 and the intermediate flange 51 is filled with a sealing filler 6, and the thickness of the sealing filler 6 is smaller than that of the intermediate flange 51. The sealing packing 6 is provided with the packing block 7 coated on the outer side of the middle isolation section 2, the outer wall of the packing block 7 abuts against the inner wall of the mounting hole 19, the end face of the packing block 7 abuts against the sealing packing 6, the packing block 7 is integrally formed with the abutting block 20 with the diameter larger than that of the packing block 7 on the outer wall of the part extending out of the middle flange 51, the abutting block 20 is tightly attached to one end face of the middle flange 51, which is far away from the middle isolation section 2, in order that the packing block 7 can abut against the middle flange 51 and plays a role in extruding the packing 6, a locking plate 8 sleeved on the outer wall of the packing block 7 is arranged on one end face of the abutting block 20, the locking plate 8 abuts against the end face of the abutting block 20, and a locking bolt 9 in threaded connection with the middle flange 51 is penetrated on the locking plate 8, and under the action of the locking bolt 9, the packing block 7 can be abutted against the end face of the middle flange 51 by the locking plate 8. If a plurality of electrodes 14 are provided on the intermediate flange 51, the same locking plate 8 is used to achieve a tightening effect on each of the compression blocks 7.
In order to cooperate the tight effect of support of compact heap 7 and realize the protection effect to electrode 14, the outside cover of the part that is located middle isolation section 2 at electrode 14 is equipped with insulating pillar 11, and insulating pillar 11's both ends extend to in one of them intermediate flange 51 respectively to deviate from the terminal surface butt of compact heap 7 with sealing filler 6, thereby under the effect of locking plate 8, can make compact heap 7 and insulating pillar 11 realize the extrusion effect to sealing filler 6, and then realize the sealed effect between intermediate flange 51 and the electrode 14. The protection of the electrode 14 is further realized by combining with the illustration of fig. 1, an insulating sleeve 10 is sleeved on the outer wall of the end part of the pressing block 7, which is far away from the middle flange 51, and is in threaded connection with the outer wall, and the connecting end of the electrode 14 is arranged inside the insulating sleeve 10 and is connected with an external cable.
In synchronization, referring to fig. 1, in order to achieve a good protection effect on the electrode 14 during operation, an inert gas inlet end 12 and an inert gas outlet end 13 are connected to the intermediate isolation section 2, and in the use process, inert gas is filled into the intermediate isolation section 2 by using the inert gas inlet end 12, so that the insulation property inside the intermediate isolation section 2 can be maintained, and a good protection effect is achieved on the electrode 14.
In order to monitor the sealing performance between the middle isolation section 2 and the low-temperature section 3 and the normal-temperature section 1 in real time, the two middle flanges 51 are provided with the air pressure detection ports 4 bent at right angles, the air pressure detection port 4 close to one side of the low-temperature section 3 is communicated with the inside of the middle isolation section 2, one end of the air pressure detection port 4 far away from the center of the middle flange 51 penetrates through the outer wall of the middle flange 51 and is used for connecting an air pressure detection instrument or instrument, and when the air pressure in the middle isolation section 2 is detected to rise, leakage occurs between the low-temperature section 3 and the middle isolation section 2, so that effective solving measures can be rapidly taken. The air pressure detecting port 4 near the side of the normal temperature section 1 can be communicated with the middle isolation section 2 or communicated with the side of the normal temperature section 1, and one end of the air pressure detecting port 4 far away from the center of the middle flange 51 penetrates through the outer wall of the middle flange 51 and is used for connecting an air pressure detecting instrument or instrument, if the air pressure detecting port 4 is communicated with the middle isolation section 2, when the air pressure is detected to be reduced, leakage is shown between the normal temperature section 1 and the middle isolation section 2, and if the air pressure detecting port 4 is communicated with the normal temperature section 1, when the air pressure is detected to be increased, leakage is shown between the surface normal temperature section 1 and the middle isolation section 2.
The present embodiment is only for explanation of the present invention and is not to be construed as limiting the present invention, and modifications to the present embodiment, which may not creatively contribute to the present invention as required by those skilled in the art after reading the present specification, are all protected by patent laws within the scope of claims of the present invention.
Claims (7)
1. The utility model provides a power cable connects with two feed-through sealing device, includes normal atmospheric temperature section (1) and low temperature section (3) that are connected, wears electrode (14) between normal atmospheric temperature section (1) and low temperature section (3), characterized by: an intermediate isolation section (2) is arranged between the normal temperature section (1) and the low temperature section (3), the intermediate isolation section (2) is in sealing connection with the normal temperature section (1) and the low temperature section (3), the electrode (14) is arranged in the intermediate isolation section (2) and two ends of the electrode are respectively penetrated and sealed in the normal temperature section (1) and the low temperature section (3), and the electrode (14) is in sealing connection with the normal temperature section (1) and the low temperature section (3); an air pressure detection port (4) is formed between the middle isolation section (2) and the low-temperature section (3) and between the middle isolation section (2) and the normal-temperature section (1), wherein a first air pressure detection port is formed between the middle isolation section (2) and the low-temperature section (3), and a second air pressure detection port is formed between the middle isolation section (2) and the normal-temperature section (1);
a sealing connection structure (5) is arranged between the middle isolation section (2) and the low-temperature section (3) and between the middle isolation section (2) and the normal-temperature section (1), the sealing connection structure (5) comprises a middle flange (51) which is in sealing connection with the middle isolation section (2) and is in sealing connection with the normal-temperature section (1) or the low-temperature section (3), a first middle flange is arranged between the middle isolation section (2) and the low-temperature section (3), and a second middle flange is arranged between the middle isolation section (2) and the normal-temperature section (1);
the first air pressure detection port is arranged on the first middle flange, the second air pressure detection port is arranged on the second middle flange, the first air pressure detection port is communicated with the middle isolation section (2), and the second air pressure detection port is communicated with the normal temperature section (1);
wherein, when the air pressure of the first air pressure detection port is increased, the leakage exists between the low-temperature section (3) and the middle isolation section (2), and when the air pressure of the second air pressure detection port is increased, the leakage exists between the normal-temperature section (1) and the middle isolation section (2);
the middle isolation section (2) is communicated with an inert gas inlet end (12) and an inert gas outlet end (13).
2. The dual feed-through seal for power cable attachment of claim 1, wherein: the electrode (14) is in sealing and detachable connection with the intermediate flange (51), and a sealing filler (6) is arranged between the electrode (14) and the intermediate flange (51).
3. The dual feed-through seal for power cable connections of claim 2, wherein: one side of the middle flange (51) deviating from the middle isolation section (2) is provided with a compressing block (7) sleeved on the electrode (14) and arranged between the electrode (14) and the middle flange (51) for tightly sealing the filler (6).
4. A dual feed-through seal for a power cable connection as claimed in claim 3, wherein: one side of the compaction block (7) deviating from the middle flange (51) is provided with a locking plate (8), and the locking plate (8) is abutted against the compaction block (7) and is provided with a locking bolt (9) in a penetrating way, wherein the locking bolt is connected with the middle flange (51) in a threaded way.
5. A dual feed-through seal for a power cable connection as claimed in claim 3, wherein: one end of the compaction block (7) deviating from the middle flange (51) is detachably connected with an insulating sleeve (10), and the electrode (14) penetrates through the insulating sleeve (10).
6. The dual feed-through seal for power cable attachment of claim 1, wherein: the electrode (14) is arranged outside the middle isolation section (2) and is sleeved with an insulating protective tube (11).
7. The dual feed-through seal for power cable attachment of claim 6, wherein: the end part of the insulating protection tube (11) extends to the sealing connection structure (5) and is abutted against the sealing connection structure (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810657489.8A CN108767804B (en) | 2018-06-25 | 2018-06-25 | Double feed-through sealing device for power cable connection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810657489.8A CN108767804B (en) | 2018-06-25 | 2018-06-25 | Double feed-through sealing device for power cable connection |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108767804A CN108767804A (en) | 2018-11-06 |
| CN108767804B true CN108767804B (en) | 2024-03-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810657489.8A Active CN108767804B (en) | 2018-06-25 | 2018-06-25 | Double feed-through sealing device for power cable connection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108767804B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112576929A (en) * | 2020-11-29 | 2021-03-30 | 沪东重机有限公司 | Cable cabin-penetrating sealing device of pressure container |
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|---|---|---|---|---|
| CN103618156A (en) * | 2013-12-26 | 2014-03-05 | 大连深蓝泵业有限公司 | Electrical penetrating connector for ceramic welding |
| CN103633611A (en) * | 2013-12-26 | 2014-03-12 | 大连深蓝泵业有限公司 | Electric penetrating sealing joint for low temperature glass package |
| CN205141620U (en) * | 2015-09-29 | 2016-04-06 | 辽宁长志泵业有限公司 | LNG immersed pump is with sealed protection device of electric cable connection |
| CN106207600A (en) * | 2016-08-29 | 2016-12-07 | 武汉船用机械有限责任公司 | A kind of ceramic seal electrical connector |
| CN107968275A (en) * | 2017-09-30 | 2018-04-27 | 武汉船用机械有限责任公司 | A kind of electrical connection arrangement |
| CN208316267U (en) * | 2018-06-25 | 2019-01-01 | 杭州新亚低温科技有限公司 | Power cable connection double-fed leads to sealing device |
-
2018
- 2018-06-25 CN CN201810657489.8A patent/CN108767804B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103618156A (en) * | 2013-12-26 | 2014-03-05 | 大连深蓝泵业有限公司 | Electrical penetrating connector for ceramic welding |
| CN103633611A (en) * | 2013-12-26 | 2014-03-12 | 大连深蓝泵业有限公司 | Electric penetrating sealing joint for low temperature glass package |
| CN205141620U (en) * | 2015-09-29 | 2016-04-06 | 辽宁长志泵业有限公司 | LNG immersed pump is with sealed protection device of electric cable connection |
| CN106207600A (en) * | 2016-08-29 | 2016-12-07 | 武汉船用机械有限责任公司 | A kind of ceramic seal electrical connector |
| CN107968275A (en) * | 2017-09-30 | 2018-04-27 | 武汉船用机械有限责任公司 | A kind of electrical connection arrangement |
| CN208316267U (en) * | 2018-06-25 | 2019-01-01 | 杭州新亚低温科技有限公司 | Power cable connection double-fed leads to sealing device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108767804A (en) | 2018-11-06 |
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