CN110854635B

CN110854635B - Photoelectric separation connecting device

Info

Publication number: CN110854635B
Application number: CN201810821676.5A
Authority: CN
Inventors: 谢斌; 潘勇; 芦志伟; 段胜男; 王宁博; 胡承军; 孙新; 姬小娟; 汪志; 楚恒智
Original assignee: Petrochina Co Ltd
Current assignee: Petrochina Co Ltd
Priority date: 2018-07-24
Filing date: 2018-07-24
Publication date: 2021-08-27
Anticipated expiration: 2038-07-24
Also published as: CN110854635A

Abstract

The invention provides a photoelectric separation connecting device, comprising: the optical cable connector comprises a plurality of connector assemblies, a plurality of connecting pieces and a plurality of connecting pieces, wherein each connector assembly is provided with an optical-electrical separation piece and a plurality of switching pieces, the switching pieces are fixedly arranged, the optical-electrical separation pieces separate cables and optical fibers of an optical-electrical composite cable, and the separated cables and optical fibers are connected with the switching pieces; and the adapter pieces of different joint assemblies are correspondingly connected one by one through connecting wires penetrating through the sealing cavities. The invention solves the problem of poor sealing performance of the photoelectric separation connecting device in the prior art.

Description

Photoelectric separation connecting device

Technical Field

The invention relates to the technical field of petroleum logging, in particular to a photoelectric separation connecting device.

Background

At present, the optical fiber microseismic detector and the optical fiber microseismic monitoring technology are widely applied abroad, and are not only used for guiding the fracturing exploitation process of a plurality of places, but also applied to the real-time geophysical monitoring and well completion process. In the use of above-mentioned instrument, often can need to correspond cable and optic fibre in the photoelectric composite cable with cable and optic fibre in the photoelectric acquisition nipple joint in the pit respectively and be connected and sealed, but do not have corresponding device among the prior art, and the leakproofness of adopting its connection of traditional connecting device is relatively poor, and the oil gas in the well can exert an influence to the monitoring data that optic fibre and cable obtained to lead to detecting inaccurate problem.

Disclosure of Invention

The invention mainly aims to provide a photoelectric separation connecting device, which solves the problem of poor sealing performance of the photoelectric separation connecting device in the prior art.

In order to achieve the above object, the present invention provides an optical electrical separation connecting apparatus, comprising: the optical cable connector comprises a plurality of connector assemblies, a plurality of connecting pieces and a plurality of connecting pieces, wherein each connector assembly is provided with an optical-electrical separation piece and a plurality of switching pieces, the switching pieces are fixedly arranged, the optical-electrical separation pieces separate cables and optical fibers of an optical-electrical composite cable, and the separated cables and optical fibers are connected with the switching pieces; and the adapter pieces of different joint assemblies are correspondingly connected one by one through connecting wires penetrating through the sealing cavities.

Further, the joint assembly further comprises: the photoelectric separation piece is arranged in the first joint; the second connects, and the one end that the second connects encloses into with first joint and connects and connect the chamber, and the other end that the second connects encloses into sealed chamber with coupling assembling, connects chamber and sealed chamber and separates the setting, and the adaptor is fixed to be set up in the second connects, and the one end of part adaptor stretches into and connects the intracavity.

Further, the adaptor includes: the contact pins are fixed in the second connector, and one ends of the contact pins of different connector assemblies extending into the sealing cavity are connected in a one-to-one correspondence manner through connecting wires; the clamping sleeve is fixedly arranged in the second connector and provided with a passage for optical fibers to pass through, and one ends of the clamping sleeves of different connector components extending into the sealing cavity are connected in a one-to-one correspondence mode through connecting wires.

Furthermore, the contact pins are multiple, a plurality of jacks are formed in the circumferential direction of the second connector, and the contact pins and the jacks are arranged in a one-to-one correspondence mode.

Furthermore, the connecting wire of the connecting pin is a copper wire, and/or the connecting wire of the connecting ferrule is a bare fiber.

Further, the joint assembly further comprises a seal disposed between the adaptor and the second joint to seal a gap between the adaptor and the second joint.

Further, the joint assembly further comprises a sealing element, the sealing element is arranged in the sealing cavity and divides a part of the sealing cavity to be used as a transition cavity, and one end, far away from the connecting cavity, of the adapter piece extends into the transition cavity.

Furthermore, a through hole for the cable and the optical fiber to pass through is arranged on the sealing element.

Further, the photoelectric separating member has a plurality of passages through which the cable and the optical fiber are respectively passed to perform photoelectric separation.

Further, the channels are inclined away from each other in a direction in which the optical/electrical composite cable is inserted into the joint assembly.

Furthermore, the joint component also comprises an elastic piece, and the elastic piece is arranged at the inlet of the joint component and sleeved outside the photoelectric composite cable so as to protect the photoelectric composite cable.

Further, at least one of the splice components includes a winder plate about which portions of the cable and/or optical fiber can be routed to maintain the cable and/or optical fiber in the sealed cavity taut.

Further, the connection assembly includes: the connecting joint and the plurality of joint components enclose a plurality of sealing cavities; and the connecting piece is arranged between the sealing cavities enclosed by the different connector assemblies and the connecting joint, so that the cables and the optical fibers in the different sealing cavities are respectively connected.

Further, the optical electrical separation connecting device further comprises a shell which is sleeved outside the joint assembly and/or the connecting assembly to protect the joint assembly and/or the connecting assembly.

By applying the technical scheme of the invention, the optical fiber and the cable in the photoelectric composite cable are separated by arranging the plurality of joint components, the optical fiber and the cable are respectively connected and fixed on the adapter pieces, and oil gas caused by the sliding of the optical fiber and the cable is prevented from entering the sealing cavity from a sliding gap through the connection between the adapter pieces, so that the stability and the accuracy of data signal transmission are ensured, the connecting component and the joint components jointly enclose a sealing cavity, so that the cable and the optical fiber which are mutually connected in the two photoelectric composite cables are connected and sealed, the photoelectric composite cable and the photoelectric acquisition short section are independently installed and respectively transported, and the assembling and transporting difficulty is reduced.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 shows a schematic structural diagram of an opto-electronic separation junction arrangement of the present invention;

FIG. 2 shows a schematic view of a joint assembly of FIG. 1;

fig. 3 shows a schematic structural view of the connection assembly of fig. 1; and

fig. 4 shows a schematic view of another joint assembly of fig. 1.

Wherein the figures include the following reference numerals:

10. a joint assembly; 11. a photoelectric separation element; 12. an adapter; 121. inserting a pin; 122. a card sleeve; 13. a first joint; 14. a second joint; 15. a connecting cavity; 16. sealing the cavity; 17. a seal member; 18. an elastic member; 19. a wire winding plate; 20. a connecting assembly; 21. connecting a joint; 22. a connecting member; 30. a housing.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

It is noted that, unless otherwise indicated, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

In the present invention, unless specified to the contrary, use of the terms of orientation such as "upper, lower, top, bottom" or the like, generally refer to the orientation as shown in the drawings, or to the component itself in a vertical, perpendicular, or gravitational orientation; likewise, for ease of understanding and description, "inner and outer" refer to the inner and outer relative to the profile of the components themselves, but the above directional words are not intended to limit the invention.

The invention provides a photoelectric separation connecting device, aiming at solving the problem that the sealing performance of the photoelectric separation connecting device in the prior art is poor.

As shown in fig. 1 and fig. 2, an optical electrical separation connection apparatus includes a plurality of connector assemblies 10 and a connection assembly 20, each connector assembly 10 has an optical electrical separation member 11 and a plurality of adapter members 12, the adapter members 12 are fixedly disposed, the optical electrical separation member 11 separates a cable and an optical fiber of an optical electrical composite cable, and the separated cable and optical fiber are connected to the adapter members 12; the joint assemblies 10 are connected through the connecting assembly 20, and together with the connecting assembly 20, a sealed cavity 16 is defined, and the adapters 12 of different joint assemblies 10 are connected in a one-to-one correspondence mode through connecting lines penetrating through the sealed cavity 16.

This embodiment is through being provided with a plurality of joint Assembly 10, thereby separate optic fibre and cable in the compound cable of photoelectricity, and connect optic fibre and cable respectively and fix on adaptor 12, through the connection between adaptor 12, the oil gas that the slip of having avoided optic fibre and cable leads to enters into sealed chamber 16 in the gliding clearance, thereby guaranteed data signal transmission's stable accuracy, coupling assembling 20 encloses into sealed chamber 16 with joint Assembly 10 jointly, thereby will make cable and the optical fiber connection and the sealing of interconnect in two compound cables of photoelectricity, and realize that compound cable of photoelectricity and photoelectricity gather the nipple joint and independently install, transport respectively, reduce the assembly, the transportation degree of difficulty.

In this embodiment, the connector assembly 10 further includes a first connector 13 and a second connector 14, the optoelectronic separator 11 being disposed within the first connector 13; one end of the second joint 14 and the first joint 13 enclose a connecting cavity 15, the other end of the second joint 14 and the connecting assembly 20 enclose a sealing cavity 16, the connecting cavity 15 and the sealing cavity 16 are arranged in a separated mode, the adapter 12 is fixedly arranged in the second joint 14, and one end of part of the adapter 12 extends into the connecting cavity 15.

Specifically, the two connector assemblies 10 for connecting the cable and the optical fiber of the present embodiment each include a first connector 13 and a second connector 14, the first connector 13 and the second connector 14 are connected to form one connector assembly 10, the first connector 13 has a concave region, both ends of the second connector 14 have concave regions, and the two concave regions of the second connector 14 are separated from each other, so that a connection cavity 15 is formed when the first connector 13 and the second connector 14 are connected, a sealing cavity 16 is formed when the second connector 14 and the connecting assembly 20 are connected, the cable and the optical fiber respectively extend into the connection cavity 15 from the inlet end of the first connector 13, and are fixed on the adaptor 12 in the connection cavity 15 so as to separate and fix the optical-electrical composite cable.

In the present embodiment, the adaptor 12 includes pins 121 and ferrules 122, the pins 121 are fixed in the second connector 14, and one ends of the pins 121 of different connector assemblies 10 extending into the sealed cavity 16 are connected in a one-to-one correspondence by connecting wires; ferrule 122 is fixedly disposed within second connector 14, ferrule 122 has a passage for optical fibers to pass through, and the ends of ferrules 122 of different connector assemblies 10 extending into sealed cavity 16 are connected one-to-one by connecting wires. The plug 121 is used for connecting a cable, the ferrule 122 is used for fixing an optical fiber, and both the plug 121 and the ferrule 122 are fixed on the part between the two concave areas of the second connector 14, so that the cable and the optical fiber can be respectively connected and fixed with the corresponding adaptor 12, and operation and installation are convenient. A socket is further opened on the second connector 14, a portion of the pin 121 is inserted into the socket, and a cable is inserted into the socket to be connected with the pin 121, thereby reliably connecting the cable with the pin 121.

Optionally, the number of the pins 121 is multiple, a plurality of jacks are circumferentially formed in the second connector 14, and the pins 121 and the jacks are arranged in a one-to-one correspondence. Since the number of cables is generally more than one, and only one optical fiber is used, ferrule 122 is disposed at the axial position of second connector 14, and pins 121 are circumferentially disposed around ferrule 122.

It should be noted that the connecting wire of the connecting pin 121 is a copper wire, and the connecting wire of the connecting ferrule 122 is a bare fiber. Therefore, when the photoelectric composite cable slides, the copper wires and the bare fibers in the sealed cavity 16 are not affected, and the influence on the sealing performance of the sealed cavity 16 caused by the sliding of the connecting wires is avoided.

In this embodiment, the joint assembly 10 further comprises a seal 17, the seal 17 being disposed within the seal chamber 16 and dividing a portion of the seal chamber 16 to serve as a transition chamber into which an end of the adaptor 12 remote from the connection chamber 15 projects.

Specifically, the sealing member 17 is a rubber plug, and the rubber plug is disposed in the sealing chamber 16 at a position close to the first joint 13, so as to partition a part of the sealing chamber 16 to serve as a transition chamber, so as to facilitate installation of the insertion needle 121 and the ferrule 122, and a via hole for passing a connection line is also formed on the rubber plug, so as to further ensure the sealing property of the sealing chamber 16.

In one embodiment, not shown, the seal 17 of the coupling assembly 10 is a sealing ring, and the seal 17 is disposed between the adaptor 12 and the second coupling 14 to seal a gap between the adaptor 12 and the second coupling 14.

In this embodiment, the optical-electrical separating member 11 is a three-cone sleeve having a plurality of channels through which the cable and the optical fiber are respectively passed to perform optical-electrical separation, thereby separating the optical fiber and the cable.

Preferably, one end of the tricone sleeve is used as an access end of the optical-electrical composite cable, after the optical-electrical composite cable is accessed to the tricone sleeve, the optical fiber enters the connection cavity 15 along the middle channel, each cable enters the connection cavity 15 along the surrounding channel, and along the direction that the optical-electrical composite cable is inserted into the connector assembly 10, each channel inclines towards the direction away from each other, so that the cables and the optical fiber are prevented from interfering with each other, and the accuracy and the reliability of separation are ensured.

In this embodiment, the connector assembly 10 further includes an elastic member 18, i.e. a spring, and the elastic member 18 is disposed at the entrance of the connector assembly 10 and sleeved outside the optical composite cable to protect the optical composite cable. Thus, when the photoelectric composite cable is bent at the position where the photoelectric composite cable is connected into the three taper sleeves, the elastic part 18 can reduce the bending degree of the photoelectric composite cable, so that the photoelectric composite cable is protected.

As shown in fig. 4, at least one of the splice components 10 also includes a winder plate 19, and a portion of the cable and/or optical fiber can be routed around the winder plate 19 to keep the cable and/or optical fiber taut within the sealed cavity 16. A plurality of winding plates 19 are arranged in the sealed cavity 16 of the joint assembly 10, so that redundant connecting wires are wound on the winding plates 19, the connecting wires in the sealed cavity 16 can be kept tight, and the measuring accuracy is guaranteed.

As shown in fig. 3, the connection assembly 20 includes a connection joint 21 and a connection piece 22, the connection joint 21 and the plurality of joint assemblies 10 enclose a plurality of sealed cavities 16; the connecting member 22 is disposed between the different connector assemblies 10 and the sealed cavity 16 enclosed by the connecting connector 21, so as to connect the cables and the optical fibers in the different sealed cavities 16 respectively.

Specifically, both ends of the connection joint 21 also have a structure shaped like a Chinese character 'ao', so as to enclose two sealed cavities 16 with two second joints 14, the connection piece 22 is the same as the adaptor 12, and is also a pin and a ferrule and arranged in one-to-one correspondence with the pin 121 and the ferrule 122 on the second joint 14, by arranging the connection piece 22, the cables and the optical fibers extending out of the two second joints 14 are connected, so that the purpose of correspondingly connecting and sealing the cables and the optical fibers in the photoelectric composite cable with the cables and the optical fibers in the downhole photoelectric acquisition pup joint respectively is achieved.

As shown in fig. 1, the optical electrical separation connecting apparatus further includes a housing 30, and the housing 30 is sleeved outside the connector assembly 10 and the connecting assembly 20 to protect the connector assembly 10 and the connecting assembly 20. A plurality of seal rings are disposed between the coupling assembly 10 and the coupling assembly 20 and the housing 30. So as to seal the gap between the connector assembly 10 and the connecting assembly 20 and the housing 30, and ensure the sealing performance of the optical electrical separation connecting device. The housing 30 may be provided in plural or may be provided as one integral body.

From the above description, it can be seen that the above-described embodiments of the present invention achieve the following technical effects:

1. the problem of poor sealing performance of the photoelectric separation connecting device in the prior art is solved;

2. the integral structure is simple, the use is convenient, and the sealing performance is good;

3. the cable and the optical fiber are respectively connected through the copper wire and the bare fiber through the adapter, so that the accuracy of signal transmission is ensured;

4. the photoelectric composite cable and the photoelectric acquisition short section are independently installed and respectively transported, so that the assembly and transportation difficulty is reduced.

It is to be understood that the above-described embodiments are only a few, but not all, embodiments of the present invention. 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 invention.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular is intended to include the plural unless the context clearly dictates otherwise, and it should be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of features, steps, operations, devices, components, and/or combinations thereof.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An opto-electrical separation connection, comprising:

the optical cable connector comprises a plurality of connector assemblies (10), wherein each connector assembly (10) is provided with an optical-electrical separation piece (11) and a plurality of adapter pieces (12), the adapter pieces (12) are fixedly arranged, the optical-electrical separation pieces (11) separate the optical fiber and the cable of the optical-electrical composite cable, and the separated optical fiber and the cable are connected with the adapter pieces (12);

the connector assemblies (10) are connected through the connecting assemblies (20), a sealing cavity (16) is defined by the connector assemblies (20) and the adaptor pieces (12) of different connector assemblies (10) are correspondingly connected one by one through connecting lines penetrating through the sealing cavity (16);

the joint assembly (10) further comprises:

a first connector (13), the optoelectronic separator (11) being arranged within the first connector (13);

the second connects (14), the one end that the second connects (14) with first joint (13) enclose into connecting chamber (15), the other end that the second connects (14) with coupling assembling (20) enclose into sealed chamber (16), connecting chamber (15) with sealed chamber (16) separate the setting, adaptor (12) are fixed to be set up in the second connects (14), and part the one end of adaptor (12) stretches into in connecting chamber (15).

2. The opto-electric separation connection arrangement according to claim 1, characterized in that the adapter piece (12) comprises:

the pins (121) are fixed in the second connector (14), and one ends, extending into the sealed cavity (16), of the pins (121) of different connector assemblies (10) are connected in a one-to-one correspondence manner through the connecting lines;

the ferrule (122) is fixedly arranged in the second connector (14), the ferrule (122) is provided with a passage for the optical fiber to pass through, and one ends of the ferrules (122) of different connector assemblies (10) extending into the sealed cavity (16) are connected in a one-to-one correspondence mode through the connecting wires.

3. The optical electrical separation connecting device as claimed in claim 2, wherein the number of the pins (121) is plural, the second connector (14) has a plurality of jacks formed in a circumferential direction, and the pins (121) and the jacks are arranged in a one-to-one correspondence.

4. The opto-electrical separation connection according to claim 2 characterized in that the connection wires connecting the pins (121) are copper wires and/or the connection wires connecting the ferrules (122) are bare fibers.

5. The opto-electrical separation connection arrangement according to claim 1, characterized in that the connector assembly (10) further comprises a sealing member (17), the sealing member (17) being arranged between the adapter member (12) and the second connector (14) to seal a gap between the adapter member (12) and the second connector (14).

6. The opto-electrical separation connection according to claim 1, characterized in that the connector assembly (10) further comprises a sealing member (17), the sealing member (17) being arranged in the sealing chamber (16) and dividing a portion of the sealing chamber (16) as a transition chamber into which an end of the adapter member (12) remote from the connection chamber (15) projects.

7. The opto-electric separation connection according to claim 6, characterized in that the sealing member (17) is provided with a through hole for passing the cable and the optical fiber.

8. The optical electrical separation connection apparatus according to claim 1, wherein the optical electrical separation member (11) has a plurality of passages through which the cable and the optical fiber are respectively passed to perform optical electrical separation.

9. The opto-electronic separation connection according to claim 8, characterized in that the channels are inclined away from each other in the direction of insertion of the composite optical cable into the connector assembly (10).

10. The optical electrical separation connection apparatus of claim 8, wherein the connector assembly (10) further comprises an elastic member (18), and the elastic member (18) is disposed at an inlet of the connector assembly (10) and sleeved outside the optical electrical composite cable to protect the optical electrical composite cable.

11. The opto-electric separation connection according to claim 1, characterized in that at least one of the connector components (10) further comprises a winding plate (19), on which winding plate (19) parts of the cable and/or the optical fiber can be wound to keep the cable and/or the optical fiber taut within the sealed cavity (16).

12. The opto-electric separation connection arrangement according to any one of claims 1 to 11, characterized in that the connection assembly (20) comprises:

a connection fitting (21), said connection fitting (21) enclosing a plurality of said sealed chambers (16) with a plurality of said fitting assemblies (10);

the connecting piece (22) is arranged between the sealing cavities (16) enclosed by the different connector assemblies (10) and the connecting connector (21), so that the cables and the optical fibers in the different sealing cavities (16) are respectively connected.

13. The opto-electric separation connection according to any of claims 1 to 11, characterized in that it further comprises a housing (30), the housing (30) being fitted over the outside of the joint component (10) and/or the connection component (20) to protect the joint component (10) and/or the connection component (20).