CN106252907B - A kind of low temperature immersed pump power cable sealing transmission mechanism - Google Patents
A kind of low temperature immersed pump power cable sealing transmission mechanism Download PDFInfo
- Publication number
- CN106252907B CN106252907B CN201610814734.2A CN201610814734A CN106252907B CN 106252907 B CN106252907 B CN 106252907B CN 201610814734 A CN201610814734 A CN 201610814734A CN 106252907 B CN106252907 B CN 106252907B
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- CN
- China
- Prior art keywords
- insulating sleeve
- low temperature
- immersed pump
- power cable
- temperature immersed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
- H01R13/502—Bases; Cases composed of different pieces
- H01R13/506—Bases; Cases composed of different pieces assembled by snap action of the parts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
- F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
- F04D13/08—Units comprising pumps and their driving means the pump being electrically driven for submerged use
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/28—Clamped connections, spring connections
- H01R4/30—Clamped connections, spring connections utilising a screw or nut clamping member
- H01R4/305—Clamped connections, spring connections utilising a screw or nut clamping member having means for facilitating engagement of conductive member or for holding it in position
-
- 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
- H02G15/25—Stop junctions
Abstract
The present invention relates to a kind of low temperature immersed pump power cables to seal transmission mechanism, the power cable sealing transmission structure include in another end closure of one end open hollow tubular the first insulating sleeve, in the hollow tubular of both ends open the second insulating sleeve and through the first insulating sleeve sealing end and with the copper conductor of sealing end fixed seal connection；Wherein, the first insulating sleeve is for the electric motor end cap fixed seal connection with low temperature immersed pump, and the open end of the first insulating sleeve penetrates the inside that electric motor end cap leads to low temperature immersed pump when connection；The sealing end fixed seal connection of one end of the second insulating sleeve and the first insulating sleeve, the other end lead to the outside of low temperature immersed pump；The first end of copper conductor is located in the first insulating sleeve, for being connect with motor wire；The second end of copper conductor is located in the second insulating sleeve, for being connect with external low temperature power cable.The present invention solves the problems, such as the power cable sealing transmission structure for lacking and matching with low temperature immersed pump domestic at present.
Description
Technical field
The present invention relates to a kind of cable seal transmission mechanisms more particularly to a kind of low temperature immersed pump power cable to seal biography
Transfer mechanism.
Background technology
LNG receiving stations, LNG liquefaction plants, LNG cargo ships, floating LNG liquefied storages device, coal tar furnace gas methanation take
In LNG devices and chemical plant installations in the conveying project of the cryogenic medias such as alkane, alkene, it is both needed to carry out using low temperature immersed pump low
The operations such as the conveying of warm medium and loading-unloading vehicle.But since the cryogenic medias such as LNG, alkane, alkene have low temperature, inflammable, explosive
And the characteristic easily vaporized, cause the operating condition of such medium delivery pump severe, the requirement to various aspects such as cable connection, sealings
It is very harsh, it is desirable that equipment has the characteristics that power transmission is safe and reliable.Because design difficulty is big, manufacture and experiment are difficult, at present
The country lacks the power cable that matches with low temperature immersed pump and seals transmission structure, leads to that Related product is expensive, technology branch
Hold the problems such as not catching up with.
Invention content
In view of the above-mentioned problems, the object of the present invention is to provide a kind of low temperature immersed pump power cables to seal transmission mechanism,
Solve the problems, such as the power cable sealing transmission structure for lacking and matching with low temperature immersed pump domestic at present.
To achieve the above object, the present invention takes following technical scheme：A kind of low temperature immersed pump power cable sealing biography
Transfer mechanism, which is characterized in that the power cable seals transmission mechanism and includes：In one end open, the hollow tubular of another end closure
The first insulating sleeve, in the second insulating sleeve of the hollow tubular of both ends open, and the envelope through first insulating sleeve
Mouthful end and with the copper conductor of the sealing end fixed seal connection；Wherein, first insulating sleeve is used for and low temperature immersed pump
Electric motor end cap fixed seal connection, and when connecting described in the open end of the first insulating sleeve penetrate the electric motor end cap and lead to institute
State the inside of low temperature immersed pump；One end of second insulating sleeve and the sealing end fixing seal of first insulating sleeve connect
It connects, the other end leads to the outside of the low temperature immersed pump；The first end of the copper conductor is located in first insulating sleeve, uses
It is connect in motor wire；The second end of the copper conductor is located in second insulating sleeve, is used for and external low temperature power
Cable connection.
The external surrounding of the sealing end of first insulating sleeve has been wholely set erecting bed, and first insulating sleeve is logical
It crosses screw the erecting bed is pressed on the electric motor end cap, be used between first insulating sleeve and the electric motor end cap
It is pressed into contact with sealing.
First insulating sleeve and the second insulating sleeve are made of polytetrafluoroethylene (PTFE).
Position in the middle part of the copper conductor close to the first end is provided with positioning block reinforcement, close to the position of the second end
It is provided with screw thread, the sealing end of first insulating sleeve offers mounting hole, and the second end of the copper conductor is worn
The mounting hole is crossed, and so that the positioning block reinforcement is pressed on first insulating sleeve tightly by locking nut and nut
On the sealing end；It is used between the copper conductor and first insulating sleeve and is pressed into contact with sealing.
Between the first end and the motor wire of the copper conductor, the second end of the copper conductor with it is described
The mode that bolt presses connecting terminal is all made of between external low temperature power cable crimps, while anti-using lock washer with double ears
Pine.
It is additionally provided with seal washer between the nut and the sealing end of first insulating sleeve.
The locking nut and nut are made of no-spark metal.
The invention adopts the above technical scheme, which has the following advantages：1, a kind of low temperature immersed pump of the invention is used
Power cable seals transmission mechanism, by between the first insulating sleeve and electric motor end cap, between copper conductor and the first insulating sleeve
Compression be tightly connected, high-pressure side can be isolated with low-pressure side cryogenic liquid, prevents high-pressure side cryogenic media from entering low-pressure side,
Solve the problems, such as that cryogenic media is leaked from high side to low side, the performance for avoiding low temperature immersed pump declines, and ensures low temperature
The normal work of immersed pump and entire process system.2, the present invention by copper conductor will on high-tension side external low temperature power cable and
The motor wire of low-pressure side connects, and realizes the power transmission under low temperature environment, solves domestic at present lack and low temperature immersed pump
The problem of power cable sealing transmission structure to match.3, the present invention uses easy-to-dismount cabled manner, prevents low
Cable bad in warm immersed pump dismounting repair, reduces the maintenance replacement cost of entire process unit.4, structure of the invention letter
It is single, it is easily manufactured, Aided design and the manufacture of domestic large-scale low-temperature immersed pump are can be widely applied to, the latent liquid of low temperature is also beneficial to
Pump the application extension in the projects such as alkanes and hydro carbons.
Description of the drawings
Fig. 1 is assembling structure schematic diagram of the present invention in low temperature immersed pump；
Fig. 2 is the enlarged structure schematic diagram in the portions A in Fig. 1；
Fig. 3 is the structural schematic diagram of the present invention.
Specific implementation mode
The present invention is described in detail below with reference to the accompanying drawings and embodiments.
As shown in Figure 1, Figure 2 and Figure 3, a kind of low temperature immersed pump provided by the invention seals transmission mechanism with power cable
100 comprising the first insulating sleeve 1, the second insulating sleeve 2 and copper conductor 3；Wherein, the first insulating sleeve 1 in one end open,
The hollow tubular of another end closure, power cable seal transmission structure 100 and pass through the first insulating sleeve 1 and low temperature immersed pump 500
200 fixed seal connection of electric motor end cap, and connect when the first insulating sleeve 1 open end penetrate electric motor end cap 200 lead to it is low
Inside warm immersed pump 500；Second insulating sleeve 2 is in the hollow tubular of both ends open, the sealing end of one end and the first insulating sleeve 1
11 fixed seal connections, the other end lead to outside low temperature immersed pump 500；Copper conductor 3 runs through the sealing end 11 of the first insulating sleeve 1
And with 11 fixed seal connection of sealing end of the first insulating sleeve 1, so that the first end 31 of copper conductor 3 is located at the first insulating sleeve 1
It is interior, for being connected with motor wire 300, pass through between the junction and electric motor end cap 200 of motor wire 300 and copper conductor 3
First insulating sleeve 1 realizes insulation and high pressure resistant impact；The second end 32 of copper conductor 3 is located in the second insulating sleeve 2, for
External low temperature power cable 400 connects, between external low temperature power cable 400 and the junction and electric motor end cap 200 of copper conductor 3
Insulation and high pressure resistant impact are realized by the second insulating sleeve 2.The electricity of on high-tension side external world's low temperature power cable 400 and low-pressure side
Machine conducting wire 300 is realized by copper conductor 3 and is connected, while ensureing 500 inside of low temperature immersed pump and external sealed separation, to realize
Power transmission under low temperature environment is that the low temperature immersed pump 500 in holding vessel 600 is powered.
In above-described embodiment, the external surrounding of the sealing end 11 of the first insulating sleeve 1 has been wholely set erecting bed 12, and first
Erecting bed 12 is pressed on by insulating sleeve 1 by screw to be realized on electric motor end cap 200 and is fixedly connected with electric motor end cap 200, together
It is pressed into contact with sealing between the first insulating sleeves of Shi Shixian 1 and electric motor end cap 200.
In above-described embodiment, the first insulating sleeve 1 and the second insulating sleeve 2 are made of low temperature seal material, and low temperature is close
Closure material can be polytetrafluoroethylene (PTFE).
In above-described embodiment, 3 middle part of copper conductor is provided with positioning block reinforcement 33 close to the position of first end 31, close to second end
32 position is provided with screw thread, and the sealing end 11 of the first insulating sleeve 1 offers mounting hole, and the second end 32 of copper conductor 3 passes through
Mounting hole simultaneously blocks positioning by positioning block reinforcement 33, then so that positioning block reinforcement 33 is pressed tightly by copper locking nut 4 and copper nut 5
Tightly on the sealing end 11 of the first insulating sleeve 1, to realize that the fixed of 1 sealing end 11 of copper conductor 3 and the first insulating sleeve connects
It connects, while realizing and being pressed into contact with sealing between copper conductor 3 and the first insulating sleeve 1.
In above-described embodiment, between the first end 31 and motor wire 300 of copper conductor 3, the second end 32 of copper conductor 3 with it is outer
It connects to be all made of bolt 34 between low temperature power cable 400 and compress the mode of connecting terminal and crimp, replacement easy to disassemble；It uses simultaneously
Lock washer with double ears is locking, and anti-loosing effect is good.
In above-described embodiment, seal washer 6 is additionally provided between copper nut 5 and the sealing end 11 of the first insulating sleeve 1.
In above-described embodiment, copper locking nut 4 and copper nut 5 are made of no-spark metal, to prevent with certain
Only produce pyrophoric function.
A kind of low temperature immersed pump of the present invention seals transmission mechanism 100 when in use with power cable, as shown in Figure 1, logical
Normal low temperature immersed pump 500 is mounted in holding vessel 600, and since holding vessel 600 is stored for LNG, internal pressure is higher, is high pressure
Side region；And then pressure is relatively low in low temperature immersed pump 500, is low pressure side region.As shown in Fig. 2, opening the first insulating sleeve 1
Mouth end penetrates electric motor end cap 200 and leads to low temperature immersed pump 500 internally on the electric motor end cap 200 of low temperature immersed pump 500,
And it is sealed by screw in compression；11 fixed seal connection of sealing end of 2 one end of the second insulating sleeve and the first insulating sleeve 1, separately
One end is led to outside low temperature immersed pump 500；Copper conductor 3 through the first insulating sleeve 1 sealing end 11 and with the first insulating sleeve 1
Sealing end 11 between be tightly connected by being fixed, the first end 31 of copper conductor 3 is located in the first insulating sleeve 1, second
End 32 is located in the second insulating sleeve 2；By the first end 31 of copper conductor 3 and second end 32 respectively with motor wire 300 and external
Low temperature power cable 400 is connected.By between the first insulating sleeve 1 and electric motor end cap 200, copper conductor 3 and the first insulation sleeve
High-pressure side, can be isolated with low-pressure side cryogenic liquid, high-pressure side low temperature is prevented to be situated between by the compression sealing between the sealing end 11 of pipe 1
Matter enters low-pressure side, and the performance for avoiding low temperature immersed pump 500 declines, and ensures low temperature immersed pump 500 and entire process system
Normal work；Meanwhile on high-tension side external low temperature power cable 400 and the motor wire 300 of low-pressure side being connected by copper conductor 3
It connects, and uses easy-to-dismount cabled manner, prevent the cable bad in the dismounting repair of low temperature immersed pump 500, it is final real
Power transmission under existing low temperature environment is that the low temperature immersed pump 500 in holding vessel 600 is powered.
The various embodiments described above are merely to illustrate the present invention, wherein the structure of each component, connection type etc. are all can be
Variation, every equivalents carried out based on the technical solution of the present invention and improvement should not be excluded the present invention's
Except protection domain.
Claims (6)
1. a kind of low temperature immersed pump seals transmission mechanism with power cable, which is characterized in that the power cable seals transmission mechanism
Including：
In one end open, the first insulating sleeve of the hollow tubular of another end closure,
In the second insulating sleeve of the hollow tubular of both ends open, and
Through first insulating sleeve sealing end and with the copper conductor of the sealing end fixed seal connection；
Wherein, first insulating sleeve is for electric motor end cap fixed seal connection with low temperature immersed pump, and when connecting described in
The open end of first insulating sleeve penetrates the inside that the electric motor end cap leads to the low temperature immersed pump；Second insulating sleeve
One end and first insulating sleeve sealing end fixed seal connection, the other end leads to the outside of the low temperature immersed pump；
The first end of the copper conductor is located in first insulating sleeve, for being connect with motor wire；The second of the copper conductor
End is located in second insulating sleeve, for being connect with external low temperature power cable；
The external surrounding of the sealing end of first insulating sleeve has been wholely set erecting bed, and first insulating sleeve passes through spiral shell
The erecting bed is pressed on the electric motor end cap by nail, using compression between first insulating sleeve and the electric motor end cap
Contact sealing.
2. a kind of low temperature immersed pump as described in claim 1 seals transmission mechanism with power cable, which is characterized in that described the
One insulating sleeve and the second insulating sleeve are made of polytetrafluoroethylene (PTFE).
3. a kind of low temperature immersed pump as described in claim 1 seals transmission mechanism with power cable, which is characterized in that the copper
Position in the middle part of conductor close to the first end is provided with positioning block reinforcement, the position of the second end is provided with screw thread, institute
The sealing end for stating the first insulating sleeve offers mounting hole, and the second end of the copper conductor passes through the mounting hole,
And the positioning block reinforcement is set to be pressed on the sealing end of first insulating sleeve tightly by locking nut and nut；
It is used between the copper conductor and first insulating sleeve and is pressed into contact with sealing.
4. a kind of low temperature immersed pump as described in claim 1 seals transmission mechanism with power cable, which is characterized in that the copper
Between the first end and the motor wire of conductor, the second end of the copper conductor and the external low temperature power electric
The mode that bolt presses connecting terminal is all made of between cable crimps, while locking using lock washer with double ears.
5. a kind of low temperature immersed pump as claimed in claim 3 seals transmission mechanism with power cable, which is characterized in that the spiral shell
It is female to be additionally provided with seal washer between the sealing end of first insulating sleeve.
6. a kind of low temperature immersed pump as claimed in claim 3 seals transmission mechanism with power cable, which is characterized in that the lock
Tight nut and nut are made of no-spark metal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610814734.2A CN106252907B (en) | 2016-09-09 | 2016-09-09 | A kind of low temperature immersed pump power cable sealing transmission mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610814734.2A CN106252907B (en) | 2016-09-09 | 2016-09-09 | A kind of low temperature immersed pump power cable sealing transmission mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106252907A CN106252907A (en) | 2016-12-21 |
| CN106252907B true CN106252907B (en) | 2018-07-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610814734.2A Active CN106252907B (en) | 2016-09-09 | 2016-09-09 | A kind of low temperature immersed pump power cable sealing transmission mechanism |
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| CN (1) | CN106252907B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107725393A (en) * | 2017-09-30 | 2018-02-23 | 武汉船用机械有限责任公司 | A kind of low temperature immersed pump |
| CN109347052B (en) * | 2018-12-10 | 2023-09-19 | 重庆科技学院 | High-pressure-resistant one-hole multi-line sealing structure |
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| CN201661498U (en) * | 2009-12-11 | 2010-12-01 | 上海邦浦实业集团有限公司 | Cable sealing base used for submersible sewage pump |
| CN103474941A (en) * | 2013-09-05 | 2013-12-25 | 中国海洋石油总公司 | High-low pressure cavity cable connection seal box for low-temperature immersed centrifugal turbine generator power transmission |
| 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 |
| CN204179631U (en) * | 2014-10-26 | 2015-02-25 | 浙江丰球泵业股份有限公司 | The resistance to oil sealing device of submersible electric pump cable line |
| CN204407848U (en) * | 2014-12-31 | 2015-06-17 | 上海连成（集团）有限公司 | A kind of mini submersible sewage pump long cable section of ingoing line structure of improvement |
| CN206003975U (en) * | 2016-09-09 | 2017-03-08 | 中国海洋石油总公司 | Low temperature immersed pump power cable seals transmission mechanism |
-
2016
- 2016-09-09 CN CN201610814734.2A patent/CN106252907B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201661498U (en) * | 2009-12-11 | 2010-12-01 | 上海邦浦实业集团有限公司 | Cable sealing base used for submersible sewage pump |
| CN103474941A (en) * | 2013-09-05 | 2013-12-25 | 中国海洋石油总公司 | High-low pressure cavity cable connection seal box for low-temperature immersed centrifugal turbine generator power transmission |
| 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 |
| CN204179631U (en) * | 2014-10-26 | 2015-02-25 | 浙江丰球泵业股份有限公司 | The resistance to oil sealing device of submersible electric pump cable line |
| CN204407848U (en) * | 2014-12-31 | 2015-06-17 | 上海连成（集团）有限公司 | A kind of mini submersible sewage pump long cable section of ingoing line structure of improvement |
| CN206003975U (en) * | 2016-09-09 | 2017-03-08 | 中国海洋石油总公司 | Low temperature immersed pump power cable seals transmission mechanism |
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| Publication number | Publication date |
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| CN106252907A (en) | 2016-12-21 |
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Address after: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing Co-patentee after: CNOOC Gas & Power Group Patentee after: China Offshore Oil Group Co., Ltd. Address before: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing Co-patentee before: CNOOC Gas & Power Group Patentee before: China National Offshore Oil Corporation |