Cable connector for single-phase insulation sealing connection of electric pump cable

Abstract

The utility model discloses a cable connector for single-phase insulation sealing connection of an electric pump cable, and belongs to the technical field of oil production engineering. The cable connector comprises a pressing cylinder, and a first rubber sleeve and a second rubber sleeve which are connected with each other are arranged in the pressing cylinder. A first connector and a second connector which are connected are arranged in the first rubber sleeve, the first connector is connected with a first cable, and the second connector is connected with a second cable. According to the utility model, the technical problem of connection, insulation and sealing of the electric pump cable in a high-temperature and high-pressure underground liquid environment is solved, and the technical effect of rapid and efficient connection of the electric pump cable is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of oil production engineering, in particular to a cable connector for single-phase insulation and sealing connection of electric pump cables. Background Art

[0002] Currently, offshore oilfield production primarily relies on electric submersible pumps (ESPs) for lifting, relying on three-phase power cables to transmit power and data signals for monitoring ESP operation and wellbore dynamics. However, on-site ESP maintenance requires the completion of three-phase insulation seal connections for the power cables. Currently, this method uses a crimped copper sleeve followed by insulation wrapping, which is time-consuming, consumes a lot of materials, and places high demands on operators, hindering efficiency in on-site operations. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a cable connector for single-phase insulation and sealing connection of electric pump cables.

[0004] The utility model is realized by adopting the following technical solutions.

[0005] A cable connector for single-phase insulated and sealed connection of electric pump cables comprises a pressure cylinder, wherein a first rubber sleeve and a second rubber sleeve connected to each other are arranged inside the pressure cylinder; a first joint and a second joint connected to each other are arranged inside the first rubber sleeve, wherein the first joint is connected to a first cable, and the second joint is connected to a second cable.

[0006] Furthermore, the first connector is a hollow structure, including a second connecting channel and a third connecting channel, the first cable is connected to the second connecting channel, and the second connector is connected to the third connecting channel.

[0007] Furthermore, the first cable and the second connecting channel are interference fit, and the first cable and the second connecting channel are connected by a snap-fit manner.

[0008] Furthermore, the bottom of the second connector is concave to form a fourth connection channel, and the second cable is connected to the fourth connection channel.

[0009] Furthermore, the second connector is connected to the second cable in a threaded manner.

[0010] Furthermore, the second rubber sleeve is buckled and connected to the first rubber sleeve.

[0011] Furthermore, the second rubber sleeve abuts against an end of the second joint away from the first joint.

[0012] Furthermore, both ends of the pressing cylinder are respectively connected to a first locking head and a second locking head.

[0013] Furthermore, the first locking head and the second locking head have the same structure.

[0014] Furthermore, the first locking head and the second locking head are connected to the pressing cylinder through threads.

[0015] This application has the following beneficial effects.

[0016] The utility model solves the technical problem of insulation and sealing of electric pump cables in high-temperature and high-pressure downhole liquid environments by clamping the first cable with the first connector, threading the second cable with the second connector, and locking the first connector, the second connector, the first rubber sleeve and the second rubber sleeve in the pressure cylinder through the first locking head and the second locking head, thereby achieving the technical effect of fast and efficient connection of electric pump cables. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural diagram of the utility model;

[0018] Figure 2 This utility model Figure 1 Enlarged view of part A in the middle;

[0019] Figure 3 This utility model Figure 1 Enlarged view of part B in the middle.

[0020] Among them, 1, pressing cylinder; 11, first connecting channel; 12, second internal thread;

[0021] 2. First connector; 21. Second connecting channel; 22. Third connecting channel;

[0022] 3. Second joint; 31. Fourth connecting channel; 32. First internal thread;

[0023] 4. First rubber sleeve;

[0024] 5. Second rubber sleeve;

[0025] 6. First locking head; 61. External thread;

[0026] 7. Second locking head;

[0027] 8. First cable;

[0028] 9. Second cable. DETAILED DESCRIPTION

[0029] The present patent application is further described below with reference to the embodiments.

[0030] like Figure 1-3As shown, a cable connector for single-phase insulated and sealed connection of electric pump cables is used. In actual application, the cable connector is used to connect a first cable 8 with a second cable 9. It includes: a pressing cylinder 1, a first joint 2, a second joint 3, a first rubber sleeve 4 and a second rubber sleeve 5 arranged in the pressing cylinder 1, wherein the first joint 2 is connected to the second joint 3.

[0031] In some embodiments, the pressing cylinder 1 is a hollow structure, wherein the hollow portion is a first connecting channel 11 for accommodating the first joint 2 , the second joint 3 , the first rubber sleeve 4 and the second rubber sleeve 5 provided in the pressing cylinder 1 .

[0032] Furthermore, the first connector 2 is adapted to the second connector 3, wherein the first connector 2 is a hollow structure, which includes a second connecting channel 21 provided in the upper half, and a third connecting channel 22 provided in the lower half, wherein the second connecting channel 21 is used to connect to the first cable 8, and the third connecting channel 22 is connected to the second connector 3, thereby connecting the first connector 2 to the second connector 3.

[0033] Furthermore, the second connector 3 has a concave bottom structure, wherein the second connector 3 is adapted to the third connection channel 22, so that the second connector 3 can be connected to the third connection channel 22 in a plug-in manner. In some embodiments, the concave portion of the bottom of the second connector 3 is a fourth connection channel 31, and the fourth connection channel 31 is connected to the second cable 9, thereby connecting the two sets of cables by using the first connection 2 and the second connector 3 to cooperate with each other.

[0034] In some embodiments, the first cable 8 is adapted to the second connection channel 21 . For example, the first cable 8 is interference fit with the second connection channel 21 , and the first cable 8 and the second connection channel 21 can be connected by snapping.

[0035] In some embodiments, the fourth connecting channel 31 is further provided with a first internal thread 32, so that the second connector 3 can be connected to the second cable 9 by a threaded connection. Because the connection between the second connector 3 and the second cable 9 may be located inside the equipment or wellhead, which is inconvenient for maintenance or connection, the connection between the second cable 9 and the second connector 3 is set as a threaded connection, which can effectively enhance the stability of the connection between the second cable 9 and the second connector 3.

[0036] In some embodiments, the first rubber sleeve 4 is a hollow structure, covering the first joint 2 and the second joint 3. Furthermore, the second rubber sleeve 5 is also a hollow structure, and is snap-fitted to the first rubber sleeve 4. The second rubber sleeve 5 is also connected to the end of the second joint 3 away from the first joint 2. Thus, the first and second rubber sleeves 4 and 5 are deformed to secure the first and second joints 2 and 3 in the first connecting channel 11. Furthermore, the provision of the first and second rubber sleeves 4 and 5 in the pressing cylinder 1 not only provides insulation but also enhances sealing.

[0037] Furthermore, the cable connector also includes: a first locking head 6 and a second locking head 7 with the same structure, the first locking head 6 and the second locking head 7 are hollow structures, and the hollow space can be used for the first cable 8 and the second cable 9 to pass through respectively, the first locking head 6 and the second locking head 7 are respectively connected to the two ends of the pressing cylinder 1, and are used to lock the first joint 2, the second joint 3, the first rubber sleeve 4 and the second rubber sleeve 5 in the pressing cylinder 1.

[0038] In some embodiments, a second internal thread 12 is further provided at both ends of the first connecting channel 11, and an external thread 61 that is compatible with the second internal thread 12 is provided on the outer periphery of the first locking head 6 and the second locking head 7. The external thread 61 is threadedly connected to the second internal thread 12 to realize the connection process between the first locking head 6 and the second locking head 7 and the pressing cylinder 1.

[0039] The embodiments of this specific implementation method are all preferred embodiments of the present utility model, and are not intended to limit the scope of protection of the present utility model. Therefore, any equivalent changes made based on the structure, shape, and principle of the present utility model should be included in the scope of protection of the present utility model.

Claims

1. A cable connector for single-phase insulated and sealed connection of electric pump cables, characterized by: The invention comprises a pressing cylinder (1), wherein a first rubber sleeve (4) and a second rubber sleeve (5) are provided in the pressing cylinder (1); a first joint (2) and a second joint (3) are provided in the first rubber sleeve (4), wherein the first joint (2) is connected to a first cable (8), and the second joint (3) is connected to a second cable (9).

2. A cable connector for single-phase insulated and sealed connection of electric pump cables according to claim 1, characterized in that: The first connector (2) is a hollow structure, comprising a second connecting channel (21) and a third connecting channel (22); the first cable (8) is connected to the second connecting channel (21), and the second connector (3) is connected to the third connecting channel (22).

3. A cable connector for single-phase insulated and sealed connection of electric pump cables according to claim 2, characterized in that: The first cable (8) and the second connecting channel (21) are interference-fitted, and the first cable (8) and the second connecting channel (21) are connected by a snap-fitting manner.

4. A cable connector for single-phase insulated and sealed connection of electric pump cables according to claim 1, characterized in that: The bottom of the second connector (3) is concave to form a fourth connecting channel (31), and the second cable (9) is connected to the fourth connecting channel (31).

5. A cable connector for single-phase insulated and sealed connection of electric pump cables according to claim 4, characterized in that: The second connector (3) is connected to the second cable (9) in a threaded connection manner.

6. The cable connector for single-phase insulated and sealed connection of electric pump cables according to claim 1, characterized in that: The second rubber sleeve (5) is buckled and connected to the first rubber sleeve (4).

7. The cable connector for single-phase insulated and sealed connection of electric pump cables according to claim 1, characterized in that: The second rubber sleeve (5) abuts against an end of the second joint (3) away from the first joint (2).

8. The cable connector for single-phase insulated and sealed connection of electric pump cables according to claim 1, characterized in that: The two ends of the pressing cylinder (1) are also connected to a first locking head (6) and a second locking head (7) respectively.

9. A cable connector for single-phase insulated and sealed connection of electric pump cables according to claim 8, characterized in that: The first locking head (6) and the second locking head (7) have the same structure.

10. The cable connector for single-phase insulated and sealed connection of electric pump cables according to claim 8, characterized in that: The first locking head (6) and the second locking head (7) are connected to the pressing cylinder (1) through threads.

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