Insulated joint leak detection structure

Abstract

The utility model discloses an insulation joint leak detection structure, and relates to the insulation joint technology field. The insulation joint leakage detection structure comprises a first joint pipeline and a second joint pipeline, opposite sides of the first joint pipeline and the second joint pipeline are fixedly connected with connecting flanges, and one end of the first joint pipeline is fixedly connected with a sealing gasket. The ends, opposite to each other, of the first connector pipeline and the second connector pipeline are in threaded connection with plugs used for sealing the first connector pipeline and the second connector pipeline. According to the insulation joint leakage detection structure, at the moment, leakage media, whether liquid or gas, can enable the air bag to expand, so that the air bag expands to enable the top plate to slide upwards, then the top plate applies pressure to the pressure sensor, and the pressure sensor transmits information to the outside to remind external personnel of leakage of the insulation joint; therefore, the insulating joint has a good self-checking effect, after leakage occurs, external personnel can know the leakage at the first time, and resource waste caused by medium leakage is further reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of insulating joints, in particular to an insulating joint leakage detection structure. Background Art

[0002] As a major component in the pipeline cathodic protection system, the insulating joint is used to electrically insulate the pipelines at both ends of the insulating joint, prevent the loss of cathodic protection current, and improve the cathodic protection effect of the pipeline. At the same time, the insulating joint is installed in the pipeline and should have good sealing performance to prevent leakage of internal media.

[0003] Patent number CN218761977U discloses an insulation leak detection quick connector, which is directly fixed on the insulation shell through a second fixing seat, and the top rod sliding seal is arranged in the insulation shell, the structure is simpler and more compact, and at the same time, the threads of the threaded parts of the fixing parts on both sides of the insulation shell are arranged oppositely, and the fixing parts will not loosen during the process of reciprocating the wrench, so that the operation is smoother;

[0004] The insulating joint obtained by the above patent does not have a leakage self-detection function during actual use. Therefore, when the joint leaks during long-term use, it is impossible for external staff to be informed of the leakage of the joint in the first time, which will cause waste of resources caused by medium leakage and it is impossible to replace it in time. As the medium is flushed, the leakage at the joint will intensify and cause the joint to completely rupture, thus affecting normal use. Utility Model Content

[0005] The utility model aims to solve at least one of the technical problems existing in the prior art and to provide an insulating joint leakage detection structure, which can solve the problem that the insulating joint does not have a leakage self-detection function.

[0006] To achieve the above object, the utility model provides the following technical solutions: an insulating joint leak detection structure, comprising a first joint pipe and a second joint pipe, the first joint pipe and the second joint pipe are fixedly connected with a connecting flange on opposite sides, one end of the first joint pipe is fixedly connected with a sealing gasket, and the first joint pipe and the second joint pipe are threadedly connected with a plug for sealing the opposite ends;

[0007] The first joint pipe and the second joint pipe are provided with a leakage detection mechanism, and the leakage detection mechanism is used to perform leakage detection on the connection between the first joint pipe and the second joint pipe;

[0008] The leakage detection mechanism includes a housing slidably connected to the first joint pipe;

[0009] The leakage detection mechanism also includes a built-in sealing sleeve slidably connected to the second joint pipeline;

[0010] The built-in sealing sleeve is threaded onto the inside of the housing.

[0011] Preferably, the shell and the built-in sealing sleeve are both provided with leakage detection holes, and the shell is fixedly connected with an air bag which is interconnected with the leakage detection hole, and the air bag is used to detect whether there is leakage at the connection of the insulating joint;

[0012] When the internal sealing sleeve and the outer shell threaded connection port are connected, the leakage detection holes opened in the two are in a vertically overlapping state;

[0013] A detection shell is fixedly connected to the shell, and the airbag is located inside the detection shell;

[0014] A sliding groove is provided inside the detection shell, and a top plate is slidably connected inside the detection shell.

[0015] Preferably, a battery and a pressure sensor are fixedly installed inside the detection housing, and the battery is used to supply electrical energy to the pressure sensor.

[0016] Preferably, a slider is slidably connected inside the sliding groove, and a spring is fixedly connected to the slider. The spring is used to reset the slider, and the other end of the spring is fixedly connected to the inside of the sliding groove.

[0017] Preferably, a rubber sealing pad is fixedly connected to the inner wall of the built-in sealing sleeve, and the leakage detection hole passes through the rubber sealing pad. The rubber sealing pad is provided to improve the sealing effect of the built-in sealing sleeve, which can effectively prevent leakage of the medium.

[0018] Preferably, the second joint pipe is provided with a solenoid valve, which can be automatically closed after receiving a signal, so that the interior of the second joint pipe is closed, so that the medium cannot flow;

[0019] The battery supplies power to the solenoid valve through wires, and the pressure sensor is electrically connected to the solenoid valve through a PLC control circuit board. When the pressure sensor receives a pressure signal, the pressure sensor sends a signal to the solenoid valve through the PLC control circuit board, and the solenoid valve automatically closes.

[0020] Compared with the prior art, the beneficial effects of the utility model are:

[0021] (1) The insulating joint leak detection structure has a structure in which when a leak occurs at the insulating joint connection, the leak will flow inside the built-in sealing sleeve and the outer shell that have covered the outer side of the connection, and then be injected into the airbag through the leak detection hole. At this time, the leaking medium, whether liquid or gas, will cause the airbag to expand. The expansion of the airbag causes the top plate to slide upward, and the top plate applies pressure to the pressure sensor. The pressure sensor transmits information to the outside world, thereby reminding outsiders that the insulating joint has a leak. Therefore, the insulating joint has a good self-detection effect, so that outsiders can be informed of the leak in the first time after the leak occurs, thereby reducing the waste of resources caused by the medium leakage.

[0022] (2) The insulating joint leakage detection structure improves the sealing effect of the built-in sealing sleeve by setting a rubber sealing pad, which can effectively prevent medium leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0024] Figure 1 This is a structural schematic diagram of an insulating joint leakage detection structure of the utility model;

[0025] Figure 2 This is a schematic diagram of the splitting of the first joint pipeline and the second joint pipeline of the utility model;

[0026] Figure 3 This is the internal intention of the built-in sealing sleeve of the utility model;

[0027] Figure 4 This is a schematic cross-sectional view of the interior of the detection shell of the utility model.

[0028] Figure numerals: 1. first joint pipe; 2. second joint pipe; 3. plug; 4. solenoid valve; 5. built-in sealing sleeve; 6. housing; 7. detection housing; 8. sealing gasket; 9. connecting flange; 10. airbag; 11. leakage detection hole; 12. rubber sealing gasket; 13. battery; 14. top plate; 15. pressure sensor; 16. slider; 17. spring; 18. sliding groove. DETAILED DESCRIPTION

[0029] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0030] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0031] In the description of the present utility model, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0032] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0033] See also Figure 1-4 The utility model provides a technical solution: an insulating joint leak detection structure, comprising a first joint pipe 1 and a second joint pipe 2, the first joint pipe 1 and the second joint pipe 2 are both fixedly connected with a connecting flange 9 on opposite sides, and one end of the first joint pipe 1 is fixedly connected with a sealing gasket 8;

[0034] Wherein, the opposite ends of the first joint pipe 1 and the second joint pipe 2 are both threadedly connected with plugs 3 for sealing them;

[0035] When the insulating joint needs to be inspected, one of the plugs 3 can be removed, so that one of the pipes can be connected to the external medium conveying equipment.

[0036] The first joint pipe 1 and the second joint pipe 2 are provided with a leakage detection mechanism, which is used to perform leakage detection on the connection between the first joint pipe 1 and the second joint pipe 2;

[0037] The leakage detection mechanism comprises a housing 6 slidably connected to the first joint pipe 1;

[0038] The leakage detection mechanism also includes a built-in sealing sleeve 5 slidably connected to the second joint pipe 2;

[0039] Wherein, the built-in sealing sleeve 5 is threadedly connected to the inside of the housing 6;

[0040] When the insulating joint is needed, it is only necessary to weld the first joint pipe 1 and the second joint pipe 2 to the external pipe respectively, and fix the first joint pipe 1 and the second joint pipe 2 together through the connecting flanges 9 on the first joint pipe 1 and the second joint pipe 2;

[0041] Furthermore, a leakage detection hole 11 is provided on the outer shell 6 and the built-in sealing sleeve 5, and an air bag 10 which is in communication with the leakage detection hole 11 provided thereon is fixedly connected to the outer shell 6, and the air bag 10 is used to detect whether leakage occurs at the connection of the insulating joint;

[0042] When the internal sealing sleeve 5 and the outer shell 6 are threadedly connected, the leakage detection holes 11 opened by the two are in a vertically overlapping state;

[0043] The outer shell 6 is fixedly connected with a detection shell 7, and the airbag 10 is located inside the detection shell 7;

[0044] The detection housing 7 has a sliding groove 18 formed inside, and the top plate 14 is slidably connected to the inside of the detection housing 7;

[0045] A battery 13 and a pressure sensor 15 are fixedly installed inside the detection housing 7, and the battery 13 is used to supply power to the pressure sensor 15;

[0046] The sliding groove 18 is slidably connected to the slider 16, and the slider 16 is fixedly connected to the spring 17, which is used to reset the slider 16, and the other end of the spring 17 is fixedly connected to the inside of the sliding groove 18;

[0047] When the insulating joint leaks, the built-in sealing sleeve 5 and the outer shell 6 have covered the outer side of the joint, so the leakage generated at the joint will flow inside the built-in sealing sleeve 5, and then be injected into the airbag 10 through the leakage detection hole 11. At this time, the leaking medium, whether liquid or gas, will cause the airbag 10 to expand. Therefore, the expansion of the airbag 10 causes the top plate 14 to slide upward, and then the top plate 14 applies pressure to the pressure sensor 15. Therefore, the pressure sensor 15 transmits information to the outside world, thereby reminding outsiders that the insulating joint is leaking. Therefore, the insulating joint has a good self-detection effect, so that outsiders can know it immediately after the leakage occurs;

[0048] Furthermore, a rubber sealing pad 12 is fixedly connected to the inner wall of the built-in sealing sleeve 5, and the leakage detection hole 11 passes through the rubber sealing pad 12;

[0049] The rubber sealing pad 12 is provided to improve the sealing effect of the built-in sealing sleeve 5, and can effectively prevent medium leakage;

[0050] Furthermore, the second joint pipe 2 is provided with a solenoid valve 4, which can be automatically closed after receiving a signal, so that the interior of the second joint pipe 2 is closed, so that the medium cannot flow;

[0051] The battery 13 supplies power to the solenoid valve 4 through the wire, and the pressure sensor 15 is electrically connected to the solenoid valve 4 through the PLC control circuit board;

[0052] When the pressure sensor 15 receives the pressure signal, the pressure sensor 15 sends a signal to the solenoid valve 4 through the PLC control circuit board, and the solenoid valve 4 is automatically closed.

[0053] Working principle: When leakage occurs at the connection of the insulating joint, the built-in sealing sleeve 5 and the outer shell 6 have already covered the outer side of the connection, so the leakage at the connection will flow inside the built-in sealing sleeve 5, and then be injected into the interior of the airbag 10 through the leakage detection hole 11. At this time, the leakage medium, whether liquid or gas, will cause the airbag 10 to expand. Therefore, the expansion of the airbag 10 causes the top plate 14 to slide upward, and then the top plate 14 applies pressure to the pressure sensor 15. Therefore, the pressure sensor 15 transmits information to the outside world, thereby reminding outsiders that the insulating joint is leaking. Therefore, the insulating joint has a good self-detection effect, so that outsiders can be informed of the leakage at the first time.

[0054] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. An insulating joint leak detection structure, comprising a first joint pipe (1) and a second joint pipe (2), wherein the first joint pipe (1) and the second joint pipe (2) are fixedly connected to a connecting flange (9) on opposite sides thereof, and a sealing gasket (8) is fixedly connected to one end of the first joint pipe (1), characterized in that: The ends of the first joint pipe (1) and the second joint pipe (2) facing away from each other are both threadedly connected with plugs (3) for sealing them; The first joint pipe (1) and the second joint pipe (2) are provided with a leakage detection mechanism, and the leakage detection mechanism is used to perform leakage detection on the connection between the first joint pipe (1) and the second joint pipe (2); The leakage detection mechanism comprises a housing (6) slidably connected to the first joint pipe (1); The leakage detection mechanism also includes a built-in sealing sleeve (5) slidably connected to the second joint pipe (2); The built-in sealing sleeve (5) is threadedly connected to the inside of the housing (6).

2. The insulating joint leakage detection structure according to claim 1, characterized in that: The outer shell (6) and the built-in sealing sleeve (5) are both provided with a leakage detection hole (11), and the outer shell (6) is fixedly connected with an air bag (10) which is in communication with the leakage detection hole (11) provided thereon, and the air bag (10) is used to detect whether leakage occurs at the connection of the insulating joint; When the internal sealing sleeve (5) and the outer shell (6) are threadedly connected, the leakage detection holes (11) provided in the two are in a vertically overlapping state; A detection housing (7) is fixedly connected to the housing (6), and the airbag (10) is located inside the detection housing (7); A sliding groove (18) is provided inside the detection housing (7), and a top plate (14) is slidably connected inside the detection housing (7).

3. The insulating joint leakage detection structure according to claim 2, characterized in that: A storage battery (13) and a pressure sensor (15) are fixedly installed inside the detection housing (7), and the storage battery (13) is used to supply electric energy to the pressure sensor (15).

4. The insulating joint leakage detection structure according to claim 3 is characterized in that: The sliding groove (18) is slidably connected to a slider (16), and the slider (16) is fixedly connected to a spring (17). The spring (17) is used to reset the slider (16), and the other end of the spring (17) is fixedly connected to the inside of the sliding groove (18).

5. The insulating joint leakage detection structure according to claim 4, characterized in that: A rubber sealing pad (12) is fixedly connected to the inner wall of the built-in sealing sleeve (5), and the leakage detection hole (11) passes through the rubber sealing pad (12). The rubber sealing pad (12) is provided to improve the sealing effect of the built-in sealing sleeve (5), thereby effectively preventing leakage of the medium.

6. The insulating joint leakage detection structure according to claim 5, characterized in that: The second joint pipe (2) is provided with a solenoid valve (4), and the solenoid valve (4) can be automatically closed after receiving a signal, thereby closing the interior of the second joint pipe (2) so that the medium cannot flow; The battery (13) supplies power to the solenoid valve (4) through electric wires, and the pressure sensor (15) is electrically connected to the solenoid valve (4) through a PLC control circuit board. When the pressure sensor (15) receives a pressure signal, the pressure sensor (15) sends a signal to the solenoid valve (4) through the PLC control circuit board, and the solenoid valve (4) is automatically closed.

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