CN214378964U - Sealing and insulating device for underground large-current male connector - Google Patents
Sealing and insulating device for underground large-current male connector Download PDFInfo
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- CN214378964U CN214378964U CN202022891039.0U CN202022891039U CN214378964U CN 214378964 U CN214378964 U CN 214378964U CN 202022891039 U CN202022891039 U CN 202022891039U CN 214378964 U CN214378964 U CN 214378964U
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Abstract
The utility model discloses a sealing and insulating device for a downhole heavy-current male connector, which comprises an insulating main body (9); the insulating main body (9) is of a cylindrical structure; the top of the insulating main body (9) is connected with the instrument main body (13); the insulation main body (9) is sequentially provided with a guide head (1), insulation pipes and a charged ring from bottom to top; a group of wires and reinforcing rods (4) are arranged in the insulating main body (9); the conducting wires are connected with the corresponding live rings; the top of the conducting wire and the reinforcing rod (4) is provided with a locking block (11), and the locking block (11) is connected with the insulating main body (9) in a locking way through a screw (12). The utility model discloses three major diameter wires have been arranged to the male joint inside at minor diameter, have realized the sealed insulation requirement of heavy current power supply. The high strength and rigidity of the whole structure are improved by the reinforcing rods. The operability and reliability of the whole structure are improved. The insulativity between the charged ring and the metal part and between the copper core and the metal part is ensured.
Description
Technical Field
The utility model relates to a big current male joint in pit is with sealed insulation device belongs to instrument structure technical field in the pit.
Background
In the fields of oil and gas field or coal mine exploration, geothermal well logging, and marine investigation, wet butt joint and other processes in the well are often used for supplying power to underground instruments so as to carry out construction operations such as well logging, perforation, coring and the like. The problems of reliable power supply and long-term sealing insulation need to be solved by the underground electrified wet joint. The existing multi-core wet joint is limited by various factors such as the outer diameter of an instrument, the outer diameter of a lead and the like, so that the structure is more complex and the reliability is unsatisfactory. Therefore, the prior art still has the defects and needs to be further improved.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a big current male joint in pit is with sealed insulator arrangement to realize reliable heavy current power supply between multiunit major diameter wire and the electrified ring, thereby overcome the not enough of prior art existence.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model discloses a sealing and insulating device for a downhole heavy-current male connector, which comprises an insulating main body; the insulating main body is of a cylindrical structure; the top of the insulating main body is connected with the instrument main body; the insulation main body is sequentially provided with a guide head, an insulation pipe A, a charged ring A, an insulation pipe B, a charged ring B, an insulation pipe C and a charged ring C from bottom to top; the insulation main body is internally provided with a lead A, a lead B, a lead C and a reinforcing rod; the lower end of the lead A is connected with the electrified ring A, and the lower end of the lead B is connected with the electrified ring B; the lower end of the C lead is connected with the C electrified ring; the top of the A lead, the top of the B lead, the top of the C lead and the top of the reinforcing rod are provided with locking blocks, and the locking blocks are connected with the insulating main body in a locking mode through screws.
In the sealing and insulating device for the underground large-current male connector, the lower part of the guide head is a cone, and the cone head is of a spherical structure; the upper portion of the guide head is of a cylindrical structure, an eccentric blind hole is formed in the top surface of the cylinder, a threaded hole is formed in the bottom of the eccentric blind hole, a group of sealing grooves are formed in the side walls of the blind hole, and sealing rings are arranged in the sealing grooves.
In the sealing and insulating device for the underground high-current male connector, external threads are processed at both ends of the reinforcing rod; the external thread at the upper end of the reinforcing rod is connected with the internal thread on the locking block; the external thread at the lower end of the reinforcing rod is connected with the threaded hole on the guide head.
In the sealing and insulating device for the underground large-current male connector, a boss is arranged at the upper part of an insulating main body, an external thread is processed above the boss, and the external thread on the boss is connected with an internal thread on an instrument main body; a sealing ring is arranged at the joint of the instrument main body and the insulating main body; the inner hole of the instrument main body is filled with motor oil.
In the sealing and insulating device for the underground high-current male connector, rectangular grooves or rectangular keys are arranged at the bottom end of the instrument main body, the insulating pipe A, the charged ring A, the insulating pipe B, the charged ring B, the two ends of the insulating pipe C and the charged ring C, and the top end of the guide head; the instrument main body, the insulation pipe A, the charged ring A, the insulation pipe B, the charged ring B, the insulation pipe C, the charged ring C and the guide head are sequentially connected in an anti-rotation mode through rectangular grooves or rectangular keys.
In the sealing and insulating device for the underground large-current male connector, a group of sealing grooves are formed in the joints of the insulating tube A, the charged ring B, the charged tube C and the charged ring C and the insulating main body, and sealing rings are arranged in the sealing grooves.
In the sealing and insulating device for the underground high-current male connector, a group of screw holes are formed in the electrified ring A, conductive screws are arranged in the screw holes, and the electrified ring A is electrically connected with the screw holes in the copper core of the wire A through the conductive screws; a group of screw holes are formed in the B electrified ring, conductive screws are arranged in the screw holes, and the B electrified ring is electrically connected with the screw holes in the B lead copper core through the conductive screws; and the C electrified ring is provided with a group of screw holes, conductive screws are arranged in the screw holes, and the C electrified ring is electrically connected with the screw holes in the C lead copper core through the conductive screws.
In the sealing and insulating device for the underground high-current male connector, insulating glue is filled between the wire A, the wire B and the wire C and the threading holes of the insulating main body.
In the sealing and insulating device for the underground large-current male connector, the lead A, the lead B and the lead C are arranged in an isosceles triangle and parallel to the central line of the insulating main body; the reinforcing rod is arranged opposite to the B wire and is parallel to the central line of the insulating main body.
Since the technical scheme is used, the utility model discloses three major diameter wires have been arranged inside the male joint of minor diameter, cooperate other structures, have guaranteed the sealed insulation requirement of heavy current power supply. A reinforcing rod is eccentrically arranged in the small-diameter male connector, so that the high strength and rigidity of the whole structure are ensured. Although the adoption of the multiple eccentric structure increases certain processing difficulty, the whole sealing insulation structure is simplified, and the installation operability and the reliability of the whole structure are improved. The three insulating tubes and the insulating main body are made of high-strength non-metallic insulating materials, and the sealing strength of the thin wall of the whole structure is guaranteed. The three insulating tubes and the insulating main body are made of high-strength non-metallic insulating materials, so that the insulativity between the charged ring and the metal part and between the copper core and the metal part is ensured.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;
FIG. 3 is a cross-sectional view taken along line B-B of FIG. 1;
FIG. 4 is a cross-sectional view taken along line C-C of FIG. 1;
fig. 5 is an external view of the present invention.
The labels in the figures are: 1-guide head, 2-motor oil, 3.1-A insulating tube, 3.2-B insulating tube, 3.3-C insulating tube, 4-reinforcing rod, 5.1-A charged ring, 5.2-B charged ring, 5.3-C charged ring, 6-conductive screw, 7-sealing ring, 8.1-A wire, 8.2-B wire, 8.3-C wire, 9-insulating main body, 10-boss, 11-locking block, 12-screw, 13-instrument main body, 14-insulating glue and 15-rectangular key are connected with rectangular groove.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
The utility model discloses a sealing and insulating device for a downhole heavy current male connector, which comprises an insulating main body 9, as shown in figures 1-5; the insulating main body 9 is of a cylindrical structure; the top of the insulating main body 9 is connected with the instrument main body 13; the insulation main body 9 is sequentially provided with a guide head 1, an insulation tube A3.1, a charged ring A5.1, an insulation tube B3.2, a charged ring B5.2, an insulation tube C3.3 and a charged ring C5.3 from bottom to top; the insulating main body 9 is internally provided with a lead A8.1, a lead B8.2, a lead C8.3 and a reinforcing rod 4; the lower end of the lead wire 8.1A is connected with the charged ring 5.1A, and the lower end of the lead wire 8.2B is connected with the charged ring 5.2B; the lower end of the C lead 8.3 is connected with a C charged ring 5.3; and the tops of the A lead 8.1, the B lead 8.2, the C lead 8.3 and the reinforcing rod 4 are provided with locking blocks 11, and the locking blocks 11 are connected with the insulating main body 9 in a locking manner through screws 12. The lower part of the guide head 1 is a cone, and the cone head is of a spherical structure; the upper portion of the guide head 1 is of a cylindrical structure, an eccentric blind hole is formed in the top surface of the cylinder, a threaded hole is formed in the bottom of the eccentric blind hole, a group of sealing grooves are formed in the side walls of the blind hole, and sealing rings 7 are arranged in the sealing grooves. External threads are processed at both ends of the reinforcing rod 4; the external thread at the upper end of the reinforcing rod 4 is connected with the internal thread on the locking block 11; the external thread at the lower end of the reinforcing rod 4 is connected with the threaded hole on the guide head 1. A boss 10 is arranged at the upper part of the insulation main body 9, an external thread is processed above the boss 10, and the external thread on the boss 10 is connected with an internal thread on the instrument main body 13; a sealing ring 7 is arranged at the joint of the instrument main body 13 and the insulating main body 9; the inner hole of the instrument main body 13 is filled with motor oil 2. Rectangular grooves or rectangular keys 15 are arranged at the bottom end of the instrument main body 13, the two ends of the insulation main body 9, the insulation tube A3.1, the charged ring A5.1, the insulation tube B3.2, the charged ring B5.2, the insulation tube C3.3 and the charged ring C5.3, and the top end of the guide head 1; the instrument main body 13, the insulating main body 9, the A insulating tube 3.1, the A charged ring 5.1, the B insulating tube 3.2, the B charged ring 5.2, the C insulating tube 3.3, the C charged ring 5.3 and the guide head 1 are sequentially connected in an anti-rotation mode through rectangular grooves or rectangular keys 15. The joints of the A insulating tube 3.1, the A charged ring 5.1, the B insulating tube 3.2, the B charged ring 5.2, the C insulating tube 3.3 and the C charged ring 5.3 with the insulating main body 9 are all provided with a group of sealing grooves, and sealing rings 7 are arranged in the sealing grooves. A group of screw holes are arranged on the A charged ring 5.1, conductive screws 6 are arranged in the screw holes, and the A charged ring 5.1 is electrically connected with the threaded holes on the A lead 8.1 copper core through the conductive screws 6; a group of screw holes are formed in the B charged ring 5.2, conductive screws 6 are arranged in the screw holes, and the B charged ring 5.2 is electrically connected with threaded holes in the copper core of the B lead 8.2 through the conductive screws 6; a group of screw holes are formed in the C charged ring 5.3, conductive screws 6 are arranged in the screw holes, and the C charged ring 5.3 is electrically connected with threaded holes in the C lead 8.3 copper core through the conductive screws 6. Insulating glue 14 is filled between the A lead 8.1, the B lead 8.2 and the C lead 8.3 and the threading holes of the insulating main body 9. The A lead 8.1, the B lead 8.2 and the C lead 8.3 are arranged in an isosceles triangle and parallel to the central line of the insulation main body 9; the reinforcing rod 4 is arranged opposite to the B wire 8.2 and is parallel to the central line of the insulating main body 9.
Examples
The present invention will be described in detail with reference to a sealing and insulating device for a large current male connector connecting three wires, as shown in fig. 1 to 5.
The whole structure of the embodiment bears great external pressure applied by well fluid; the structural space is less than 28 mm; the insulation main body 9 is axially provided with three charged rings and three insulators which are distributed in a staggered manner; the diameter of a single wire is about 6mm, the wire belongs to a thicker wire, and the current passing through the wire is very large;
the outer side of the insulation main body 9 is distributed with a guide head 1, three insulation tubes 3 and three electrified rings 5 at intervals from bottom to top. The inner holes of the parts are all provided with a plurality of groups of grooves which are mutually prevented from rotating by adopting the grooves, and the sealing performance of the whole structure and the insulativity among the charged rings are ensured by sealing rings; the insulating tube 3 and the insulating main body 9 are both made of high-strength non-metallic insulating materials.
Three deep holes with different depths are eccentrically arranged at the upper half part in the insulating main body 9 and are used for connecting a copper core of a wire partially stripped of an insulating skin to a corresponding charged ring; the insulation glue 14 is filled and sealed at the wire peeling position of the side opening part at the top of the insulation main body 9, so that the insulation between the copper core of the wire and the locking block 11 is improved;
three groups of six small holes are formed in the corresponding positions of the insulating main body 9 and the charged ring; the conductive screw 6 penetrates through the insulation main body 9 and is in threaded connection with the copper core of the lead, so that the conduction between the copper core of the lead and the charged ring is realized; a sealing ring 7 is sleeved on the conductive screw 6 to ensure the sealing property; the sealing ring 7 can adopt an O-shaped ring;
the lower half part inside the insulating main body 9 is eccentrically provided with a threaded hole for installing the reinforcing rod 4; the upper end and the lower end of the reinforcing rod 4 are respectively connected with the guide head 1 and the locking block 11 by threads, so that the whole structural part is axially locked; in order to prevent the screw thread from loosening, a locking block 11 is fixed on the insulating main body 9 by using a screw 12;
motor oil is filled in the inner cavity of the whole structure, so that the internal insulativity is further improved;
the utility model discloses under the very little condition of external diameter, whole structure adopts multiple eccentric structure, guarantees under the condition of part intensity and rigidity, realizes setting for the function.
The installation process of the whole structure is as follows:
1. an O-shaped ring is arranged on the part needing to be sleeved with the sealing ring 7;
2. according to the position relation shown in figure 1, three charged rings, three insulating tubes and a guide head 1 are sleeved on an insulating main body 9 from top to bottom;
3. after the reinforcing rod 4 is connected with the guide head 1, the locking block 11 and the screw 12 are screwed tightly;
4. stripping the insulation skins of the three wires with corresponding lengths, and sequentially penetrating the three wires into corresponding positions from the upper end of the insulation main body 9; the mouth part is encapsulated with insulating glue 14;
5. the conductive screw 6 penetrates through the insulation main body 9 and is in threaded connection with the copper core of the lead;
6. the whole is then screwed to the instrument body 13.
The utility model discloses a sealed insulation construction suitable for big current male joint in pit, the relevant structure of processes such as wet-type butt joint in specially adapted use in pit to instrument power supply in pit belongs to instrument structure technical field in the pit.
Claims (9)
1. A sealing and insulating device for a downhole high-current male connector comprises an insulating main body (9); the method is characterized in that: the insulating main body (9) is of a cylindrical structure; the top of the insulating main body (9) is connected with the instrument main body (13); the insulation main body (9) is sequentially provided with a guide head (1), an insulation tube A (3.1), a charged ring A (5.1), an insulation tube B (3.2), a charged ring B (5.2), an insulation tube C (3.3) and a charged ring C (5.3) from bottom to top; a lead A (8.1), a lead B (8.2), a lead C (8.3) and a reinforcing rod (4) are arranged in the insulating main body (9); the lower end of the lead (8.1) A is connected with the charged ring (5.1) A, and the lower end of the lead (8.2) B is connected with the charged ring (5.2) B; the lower end of the C lead (8.3) is connected with a C electrified ring (5.3); a lead (8.1), B lead (8.2), C lead (8.3) and stiffener (4) top are equipped with locking piece (11), and locking piece (11) are connected with insulating main part (9) locking through screw (12).
2. The seal insulation device for the downhole high-current male connector according to claim 1, wherein: the lower part of the guide head (1) is a cone, and the cone head is of a spherical structure; the upper portion of the guide head (1) is of a cylindrical structure, an eccentric blind hole is formed in the top surface of the cylinder, a threaded hole is formed in the bottom of the eccentric blind hole, a group of sealing grooves are formed in the side walls of the blind hole, and sealing rings (7) are arranged in the sealing grooves.
3. The seal insulation device for the downhole high-current male connector according to claim 1, wherein: external threads are machined at two ends of the reinforcing rod (4); the external thread at the upper end of the reinforcing rod (4) is connected with the internal thread on the locking block (11); the external thread at the lower end of the reinforcing rod (4) is connected with the threaded hole on the guide head (1).
4. The seal insulation device for the downhole high-current male connector according to claim 1, wherein: a boss (10) is arranged at the upper part of the insulation main body (9), an external thread is processed above the boss (10), and the external thread on the boss (10) is connected with an internal thread on the instrument main body (13); a sealing ring (7) is arranged at the joint of the instrument main body (13) and the insulating main body (9); the inner hole of the instrument main body (13) is filled with motor oil (2).
5. The seal insulation device for the downhole high-current male connector according to claim 1, wherein: rectangular grooves or rectangular keys (15) are arranged at the bottom end of the instrument main body (13), the insulating main body (9), the A insulating tube (3.1), the A charged ring (5.1), the B insulating tube (3.2), the B charged ring (5.2), the C insulating tube (3.3), the two ends of the C charged ring (5.3) and the top end of the guide head (1); the instrument main body (13), the insulation main body (9), the A insulation tube (3.1), the A charged ring (5.1), the B insulation tube (3.2), the B charged ring (5.2), the C insulation tube (3.3), the C charged ring (5.3) and the guide head (1) are sequentially connected in an anti-rotation mode through rectangular grooves or rectangular keys (15).
6. The seal insulation device for the downhole high-current male connector according to claim 1, wherein: a group of sealing grooves are formed in the joints of the A insulating pipe (3.1), the A charged ring (5.1), the B insulating pipe (3.2), the B charged ring (5.2), the C insulating pipe (3.3) and the C charged ring (5.3) and the insulating main body (9), and sealing rings (7) are arranged in the sealing grooves.
7. The seal insulation device for the downhole high-current male connector according to claim 1, wherein: a group of screw holes are formed in the A charged ring (5.1), conductive screws (6) are arranged in the screw holes, and the A charged ring (5.1) is electrically connected with the threaded holes in the copper core of the A lead (8.1) through the conductive screws (6); a group of screw holes are formed in the B charged ring (5.2), conductive screws (6) are arranged in the screw holes, and the B charged ring (5.2) is electrically connected with the threaded holes in the copper core of the B lead (8.2) through the conductive screws (6); a group of screw holes are formed in the C charged ring (5.3), conductive screws (6) are arranged in the screw holes, and the C charged ring (5.3) is electrically connected with the threaded holes in the C lead (8.3) copper core through the conductive screws (6).
8. The seal insulation device for the downhole high-current male connector according to claim 1, wherein: insulating glue (14) is filled between the A lead (8.1), the B lead (8.2) and the C lead (8.3) and the threading holes of the insulating main body (9).
9. The seal insulation device for the downhole high-current male connector according to claim 1, wherein: the lead A (8.1), the lead B (8.2) and the lead C (8.3) are arranged in an isosceles triangle and parallel to the central line of the insulating main body (9); the reinforcing rod (4) is opposite to the B lead (8.2) and is parallel to the central line of the insulating main body (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022891039.0U CN214378964U (en) | 2020-12-04 | 2020-12-04 | Sealing and insulating device for underground large-current male connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022891039.0U CN214378964U (en) | 2020-12-04 | 2020-12-04 | Sealing and insulating device for underground large-current male connector |
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| Publication Number | Publication Date |
|---|---|
| CN214378964U true CN214378964U (en) | 2021-10-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022891039.0U Active CN214378964U (en) | 2020-12-04 | 2020-12-04 | Sealing and insulating device for underground large-current male connector |
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| CN (1) | CN214378964U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112421281A (en) * | 2020-12-04 | 2021-02-26 | 贵州航天凯山石油仪器有限公司 | Sealing insulation structure for underground large-current male connector |
-
2020
- 2020-12-04 CN CN202022891039.0U patent/CN214378964U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112421281A (en) * | 2020-12-04 | 2021-02-26 | 贵州航天凯山石油仪器有限公司 | Sealing insulation structure for underground large-current male connector |
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