CN111411926A - Heating cable wiring device - Google Patents
Heating cable wiring device Download PDFInfo
- Publication number
- CN111411926A CN111411926A CN201910010879.0A CN201910010879A CN111411926A CN 111411926 A CN111411926 A CN 111411926A CN 201910010879 A CN201910010879 A CN 201910010879A CN 111411926 A CN111411926 A CN 111411926A
- Authority
- CN
- China
- Prior art keywords
- heating cable
- explosion
- locking mechanism
- proof
- locking
- 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.)
- Pending
Links
- 238000010438 heat treatment Methods 0.000 title claims abstract description 88
- 230000007246 mechanism Effects 0.000 claims abstract description 45
- 239000000853 adhesive Substances 0.000 claims description 25
- 230000001070 adhesive effect Effects 0.000 claims description 25
- 238000007789 sealing Methods 0.000 claims description 17
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 239000000919 ceramic Substances 0.000 claims description 3
- 239000011153 ceramic matrix composite Substances 0.000 claims description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 2
- 229910052709 silver Inorganic materials 0.000 claims description 2
- 239000004332 silver Substances 0.000 claims description 2
- 239000011347 resin Substances 0.000 abstract description 3
- 229920005989 resin Polymers 0.000 abstract description 3
- 238000005485 electric heating Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 239000010779 crude oil Substances 0.000 description 3
- 239000003129 oil well Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000002500 effect on skin Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
- E21B43/24—Enhanced recovery methods for obtaining hydrocarbons using heat, e.g. steam injection
- E21B43/2401—Enhanced recovery methods for obtaining hydrocarbons using heat, e.g. steam injection by means of electricity
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
- E21B17/028—Electrical or electro-magnetic connections
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B36/00—Heating, cooling or insulating arrangements for boreholes or wells, e.g. for use in permafrost zones
- E21B36/04—Heating, cooling or insulating arrangements for boreholes or wells, e.g. for use in permafrost zones using electrical heaters
-
- 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
- H01R4/04—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 using electrically conductive adhesives
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/02—Details
- H05B3/06—Heater elements structurally combined with coupling elements or holders
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Cable Accessories (AREA)
Abstract
The embodiment of the application provides a heating cable termination, it includes explosion-proof cavity, the intussuseption of explosion-proof cavity is filled with the conducting resin, the first locking mechanism that is used for locking first heating cable is installed to explosion-proof cavity's left end, the second locking mechanism that is used for locking second heating cable is installed to explosion-proof cavity's right-hand member, first heating cable with second heating cable passes through conducting resin electric connection. The embodiment of the application can improve the explosion-proof performance of the heating cable wiring device.
Description
Technical Field
The application relates to the technical field of oil well electric heating cable wiring, in particular to a heating cable wiring device.
Background
Oil well electric heating is an auxiliary technology capable of improving the lifting effect of heavy oil wells. The electric heating cable can be put into the well from the hollow rod, and the electric heating cable is controlled by a ground power supply to heat the electric heating cable at the whole well section in the well, and the skin effect principle is reused, so that a large amount of heat is generated on the external surface of the hollow rod to heat liquid in the shaft, the viscosity of crude oil in the shaft is reduced, the flow resistance of the crude oil is reduced, the ground is favorable for crude oil extraction, and meanwhile, the electric heating cable can be used for preventing the oil pipeline from being frozen and blocked in winter.
At present, the key technology and research direction of electric heating of an oil well mainly focus on: the medium frequency cabinet self-energy control, the heating cable energy-saving research, the heating cable eccentric wear prevention, the guiding research and the like; but lack the research on explosion prevention of the heating cable connection device. Therefore, a heating cable connection device with explosion-proof function is needed.
Disclosure of Invention
An object of the embodiment of this application is to provide a heating cable termination to improve heating cable termination's explosion-proof ability.
In order to achieve the above object, the embodiment of the present application provides a heating cable wiring device, including explosion-proof cavity, explosion-proof cavity intussuseption is filled with conductive adhesive, first locking mechanism that is used for locking first heating cable is installed to explosion-proof cavity's left end, second locking mechanism that is used for locking second heating cable is installed to explosion-proof cavity's right-hand member, first heating cable with second heating cable passes through conductive adhesive electric connection.
The heating cable termination of the embodiment of the application, the conductive adhesive comprises conductive silver adhesive.
In the heating cable connection device of the embodiment of the application, the first locking mechanism and the second locking mechanism are taper locking mechanisms.
The heating cable termination of the embodiment of this application, tapering locking mechanism includes: the taper locking mechanism comprises a taper locking mechanism body with a clamping jaw, wherein a locking nut is installed on the clamping jaw, one or more rows of clamping teeth are arranged on the inner wall of the taper locking mechanism body, and the extending direction of the clamping teeth is parallel to the central shaft of the explosion-proof cavity.
In the heating cable connection device according to the embodiment of the present application, the locking teeth include one-way T-shaped locking teeth or one-way tapered locking teeth.
The heating cable wiring device of the embodiment of the application is characterized in that an insulating layer is arranged on the inner wall of the taper locking mechanism.
The heating cable termination of this application embodiment, the material package ceramic matrix composite of insulating layer.
The heating cable termination of this application embodiment, first heating cable with first locking mechanism's junction, and second heating cable with second locking mechanism's junction all is equipped with the sealing rubber spare, first heating cable with second heating cable all pass corresponding sealing rubber spare with conducting resin electric connection.
The heating cable wiring device of the embodiment of the application is characterized in that an annular boss used for limiting and fixing the sealing rubber piece is arranged on the inner wall of the explosion-proof cavity.
The heating cable wiring device of the embodiment of the application, the explosion-proof cavity is an explosion-proof aluminum tube or an explosion-proof ceramic tube.
According to the technical scheme provided by the embodiment of the application, the heating cable wiring device comprises the explosion-proof cavity, the explosion-proof cavity is filled with the conductive adhesive, the left end of the explosion-proof cavity is provided with the first locking mechanism used for locking the first heating cable, the right end of the explosion-proof cavity is provided with the second locking mechanism used for locking the second heating cable, and the first heating cable and the second heating cable are electrically connected through the conductive adhesive. Because the wiring end between first heating cable and the second heating cable is arranged in the explosion-proof cavity, the heating cable termination of this application embodiment has explosion-proof or flame proof function to the explosion-proof performance of heating cable termination has been improved.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only some embodiments described in the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without any creative effort. In the drawings:
FIG. 1 is a schematic view of a heating cable connection device according to an embodiment of the present invention (without a heating cable connected);
fig. 2 is a schematic structural view of a heating cable wiring device (connected heating cable) according to an embodiment of the present application.
Description of reference numerals:
1 explosion-proof cavity
2 conductive adhesive
3a first locking mechanism
3b second locking mechanism
31 taper locking mechanism body
32 lock nut
33 clamping tooth
4 insulating layer
5 sealing rubber piece
6 annular boss
Detailed Description
In order to make those skilled in the art better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application. For example, in the following description, forming the second component over the first component may include embodiments in which the first and second components are formed in direct contact, embodiments in which the first and second components are formed in non-direct contact (i.e., additional components may be included between the first and second components), and so on.
Also, for ease of description, some embodiments of the present application may use spatially relative terms such as "above …," "below …," "top," "below," etc., to describe the relationship of one element or component to another (or other) element or component as illustrated in the various figures of the embodiments. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements or components described as "below" or "beneath" other elements or components would then be oriented "above" or "over" the other elements or components.
Referring to fig. 1, the heating cable connection device according to some embodiments of the present application may include an explosion-proof cavity 1, the explosion-proof cavity 1 may be filled with a conductive adhesive 2, a first locking mechanism 3a for locking a first heating cable may be installed at a left end of the explosion-proof cavity 1, correspondingly, a second locking mechanism 3b for locking a second heating cable may be installed at a right end of the explosion-proof cavity 1, and the first heating cable and the second heating cable may pass through the conductive adhesive 2 electrically connected. Because the wiring end between first heating cable and the second heating cable of this application above-mentioned embodiment is placed in explosion-proof cavity 1 is interior, therefore the heating cable termination of this application embodiment has explosion-proof or flame proof function.
In some embodiments of the present application, the purpose of the electrical connection between the first heating cable and the second heating cable through the conductive adhesive 2 is to further improve the wiring device of the heating cable, and the weight is taken into consideration as much as possible (obviously, the conductive adhesive 2 is lighter in weight compared to a metal material). in an exemplary embodiment, the conductive adhesive 2 may be a conductive adhesive having a temperature resistance range of-55 to 500 ℃ and a resistivity of not more than 2 × 10-4 Ω · cm.
In some embodiments of the present application, the first locking mechanism 3a and the second locking mechanism 3b can effectively prevent the heating cable from stretching due to pulling, which reduces the reliability and the conductive effect of the cable connection. In an embodiment of the present application, the first locking mechanism 3a and the second locking mechanism 3b may both adopt a taper locking mechanism, and since the cross section of the heating cable is generally circular, a better locking effect can be achieved by the taper locking mechanism.
In an embodiment of the present application, the taper locking mechanism may include a taper locking mechanism body 31 having a jaw, the jaw is provided with a locking nut 32, and the inner wall of the taper locking mechanism body 31 is provided with one or more rows of locking teeth 33; in this way, the locking effect of the taper locking mechanism can be further enhanced by the latch 33. In addition, since the cable stretching direction is generally parallel to the extending direction of the latch 33 and the central axis of the explosion-proof cavity 1, the extending direction of the latch 33 can also be set to be parallel to the central axis of the explosion-proof cavity 1, so that the locking effect of the latch 33 can be maximized. In an exemplary embodiment of the present application, the latch 33 is, for example, a one-way T-shaped latch or a one-way tapered latch.
In an embodiment of the present application, the inner wall of the taper locking mechanism may be provided with an insulating layer 4 in consideration of the working environment of the heating cable connection device. The insulating layer 4 not only can play an insulating role, but also has the properties of high temperature resistance, high pressure resistance, high strength, corrosion resistance and the like. In view of the above, it is preferable that the insulating layer 4 is made of a ceramic matrix composite. In an exemplary embodiment, the insulating layer 4 may have a withstand temperature of 1300 ℃ or more, and an insulation resistance of 500M Ω or more.
In an embodiment of the present application, a connection portion between the first heating cable and the first locking mechanism 3a and a connection portion between the second heating cable and the second locking mechanism 3b may be respectively provided with a sealing rubber member 5, and both the first heating cable and the second heating cable may pass through the corresponding sealing rubber member 5 and be electrically connected to the conductive adhesive 2. The conductive adhesive 2 can be sealed and blocked better by the sealing rubber piece 5. The sealing rubber member 5 may have a suitable thickness to facilitate the insertion of the heating cable through and into the conductive paste 2.
In an embodiment of the present application, in order to fix the sealing rubber member 5 in a limited manner, an annular boss 6 for fixing the sealing rubber member 5 in a limited manner may be disposed on an inner wall of the explosion-proof cavity 1. The sealing rubber piece 5 is positioned at the outer end of the corresponding annular boss 6, and the annular boss 6 is matched with the explosion-proof cavity 1 to form an accommodating space for accommodating the conductive adhesive 2. When the conductive adhesive 2 is packaged, one end of the explosion-proof cavity 1 can be plugged by one sealing rubber piece 5, then a proper amount of conductive adhesive 2 (namely, the containing space is filled) is injected into the explosion-proof cavity 1 from the other end of the explosion-proof cavity 1, and then the other end of the explosion-proof cavity 1 is plugged by the other sealing rubber piece 5. The conductive adhesive 2 sealed in the accommodating space can be gradually cured, and the cured conductive adhesive 2 can better meet the corresponding conductive performance.
In an embodiment of the present application, the explosion-proof cavity 1 may be an explosion-proof aluminum tube or an explosion-proof ceramic tube, so as to reduce the weight of the heating cable connection device as much as possible while playing an explosion-proof role. In an embodiment of the present application, the size of the explosion-proof cavity 1 can be customized according to needs, for example, in an exemplary embodiment, the diameter of the explosion-proof cavity 1 can be 4cm, and the length can be 20 cm.
As shown in fig. 2, in an embodiment of the present application, when a heating cable needs to be connected, cable ends of two heating cables to be connected may respectively penetrate through corresponding sealing rubber pieces 5 and be inserted into the electric glue 2 in the explosion-proof cavity 1, so that the two heating cables can be electrically connected through the electric glue 2; the locking nut 32 is then tightened to secure the cable ends of the two heating cables together, thereby completing the cable connection process.
The embodiments in the present specification are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.
Claims (10)
1. The utility model provides a heating cable termination, its characterized in that, includes explosion-proof cavity, the intussuseption of explosion-proof cavity is filled with conductive adhesive, the first locking mechanism that is used for locking first heating cable is installed to the left end of explosion-proof cavity, the second locking mechanism that is used for locking second heating cable is installed to the right-hand member of explosion-proof cavity, first heating cable with second heating cable passes through conductive adhesive electric connection.
2. The heating cable junction device of claim 1 wherein said conductive adhesive comprises conductive silver adhesive.
3. The heating cable termination of claim 1, wherein the first locking mechanism and the second locking mechanism are each a tapered locking mechanism.
4. A heating cable termination apparatus as claimed in claim 3, wherein the taper lock mechanism comprises: the taper locking mechanism comprises a taper locking mechanism body with a clamping jaw, wherein a locking nut is installed on the clamping jaw, one or more rows of clamping teeth are arranged on the inner wall of the taper locking mechanism body, and the extending direction of the clamping teeth is parallel to the central shaft of the explosion-proof cavity.
5. The heating cable junction device of claim 4 wherein said latches comprise one-way T-shaped latches or one-way tapered latches.
6. A heating cable termination according to claim 3, wherein the inner wall of the tapered locking means is provided with an insulating layer.
7. A heating cable junction device according to claim 6 wherein said insulating layer comprises a ceramic matrix composite.
8. The heating cable connection device according to claim 1, wherein a sealing rubber member is disposed at a connection portion of the first heating cable and the first locking mechanism, and a connection portion of the second heating cable and the second locking mechanism, and the first heating cable and the second heating cable are electrically connected to the conductive adhesive through the corresponding sealing rubber members.
9. A heating cable wiring device as claimed in claim 8, wherein an annular boss for fixing the sealing rubber member in a limited manner is provided on an inner wall of the explosion-proof chamber.
10. A heating cable wiring device as defined in claim 1, wherein said explosion-proof chamber is an explosion-proof aluminum tube or an explosion-proof ceramic tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910010879.0A CN111411926A (en) | 2019-01-07 | 2019-01-07 | Heating cable wiring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910010879.0A CN111411926A (en) | 2019-01-07 | 2019-01-07 | Heating cable wiring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111411926A true CN111411926A (en) | 2020-07-14 |
Family
ID=71490618
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910010879.0A Pending CN111411926A (en) | 2019-01-07 | 2019-01-07 | Heating cable wiring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111411926A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2408236Y (en) * | 2000-01-26 | 2000-11-29 | 辽河石油勘探局机械修造公司 | Energy saving anti-explosion electric heater for thick oil well |
| CN2640081Y (en) * | 2003-08-21 | 2004-09-08 | 乔梁 | Sealing fastening device |
| US20080227341A1 (en) * | 2007-03-15 | 2008-09-18 | Schlumberger Technology Corporation | Connector assembly for use with an electrical submersible component in a deepwater environment |
| CN202384738U (en) * | 2012-01-12 | 2012-08-15 | 刘金炜 | Energy release-type cable middle connector explosion-proof safe protection box |
| CN103382814A (en) * | 2013-07-25 | 2013-11-06 | 沧州润涛石油设备有限公司 | Flexible electric heating sucker rod |
| CN105633610A (en) * | 2016-01-15 | 2016-06-01 | 安徽冠东电子科技有限公司 | Electric wire connector |
| CN107732562A (en) * | 2017-09-25 | 2018-02-23 | 南方电网科学研究院有限责任公司 | Cable joint explosion-proof device and installation method thereof |
-
2019
- 2019-01-07 CN CN201910010879.0A patent/CN111411926A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2408236Y (en) * | 2000-01-26 | 2000-11-29 | 辽河石油勘探局机械修造公司 | Energy saving anti-explosion electric heater for thick oil well |
| CN2640081Y (en) * | 2003-08-21 | 2004-09-08 | 乔梁 | Sealing fastening device |
| US20080227341A1 (en) * | 2007-03-15 | 2008-09-18 | Schlumberger Technology Corporation | Connector assembly for use with an electrical submersible component in a deepwater environment |
| CN202384738U (en) * | 2012-01-12 | 2012-08-15 | 刘金炜 | Energy release-type cable middle connector explosion-proof safe protection box |
| CN103382814A (en) * | 2013-07-25 | 2013-11-06 | 沧州润涛石油设备有限公司 | Flexible electric heating sucker rod |
| CN105633610A (en) * | 2016-01-15 | 2016-06-01 | 安徽冠东电子科技有限公司 | Electric wire connector |
| CN107732562A (en) * | 2017-09-25 | 2018-02-23 | 南方电网科学研究院有限责任公司 | Cable joint explosion-proof device and installation method thereof |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200714 |
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| RJ01 | Rejection of invention patent application after publication |