CN215217954U

CN215217954U - Detection apparatus for pipeline under pressure

Info

Publication number: CN215217954U
Application number: CN202121756685.4U
Authority: CN
Inventors: 李贤雷; 孙月琴
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-07-28
Filing date: 2021-07-28
Publication date: 2021-12-17
Anticipated expiration: 2031-07-28

Abstract

The utility model discloses a pipeline tightness detection device technical field's a pipeline under pressure detection device, including U-shaped pipe clamp, installation department, driving screw, sealing, arc wall, sealed chamber, detection seat, intercommunicating pore, piston, slip chamber, response piece, displacement sensor uses with the cooperation of response piece, has seted up the intercommunicating pore on the piston end face, and the slip intracavity is equipped with an elastic component, and elastic component elasticity is supported the piston and is driven piston end face and the offset of slip intracavity lateral wall. Through sealing portion and pipeline under pressure outer wall counterbalance, the gaseous medium of pipeline under pressure leakage point gets into the sealed intracavity to under atmospheric pressure effect, promote the piston and remove, make displacement sensor produce the displacement signal of response piece, and then judge that the pipeline under pressure outer wall position that sealing portion corresponds has the leakage point, through setting up drive screw, drive screw is the thread closure soon on the installation department, can drive sealing portion and support tight pipeline under pressure outer wall, avoids producing detection error.

Description

Detection apparatus for pipeline under pressure

Technical Field

The utility model relates to a pipeline leakproofness detection device technical field specifically is a pipeline under pressure's detection device.

Background

Pressure pipes are understood to be all pipes which are subjected to internal or external pressure, irrespective of the medium in the pipe. Pressure pipes are part of pipes for transporting, distributing, mixing, separating, discharging, metering, controlling and stopping the flow of fluids, and are assembled assemblies of pipes, tubes, flanges, bolted connections, gaskets, valves, other components or pressure parts and supports.

The pressure pipeline is in a high-pressure environment for a long time, the pressure pipeline is long in laying distance, extremely individual leakage points can be caused inevitably during use, the leakage points are generated in various ways, the generated positions are uncertain, manual judgment is needed when the leakage points occur, if a liquid medium is conveyed in the pressure pipeline, the liquid medium can seep out of the leakage points, the leakage of the liquid medium is relatively easy to judge, but when a gas medium is conveyed in the pressure pipeline, the leakage points cannot be easily judged, particularly the gas flow rate of the gas medium leakage is small, judgment cannot be carried out through touch, and further the suspected leakage points of the pressure pipeline cannot be detected.

Based on this, the utility model designs a pipeline under pressure's detection device to solve above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a pipeline under pressure's detection device, because be in high-pressure environment for a long time in solving the above-mentioned background art and put forward, and pipeline under pressure lays the distance longer, can appear extremely individual leak point during the use unavoidably, and the production of leak point is various, therefore the position of its production is also uncertain, when the leak point appears, need the manual work to judge, the messenger's of carrying in pipeline under pressure fluid medium, fluid medium can be followed the leak point and oozed, this kind of fluid medium leaks and judges relatively more easily, but when the pipeline under pressure is carried gas medium, just can't easily judge the leak point, especially gas medium's the gas flow rate of leaking is less, can't judge through the sense of touch, and then lead to the suspected problem that detects to pipeline under pressure.

In order to achieve the above object, the utility model provides a following technical scheme: a detection device for a pressure pipeline comprises a U-shaped pipe clamp arranged on the pressure pipeline, wherein the U-shaped pipe clamp comprises two straight sections and an arc-shaped section, two ends of the arc-shaped section are respectively connected with the lower ends of the two straight sections, an installation part is jointly connected with the two straight sections, a driving screw rod is threaded on the installation part in a penetrating way, a sealing part is rotatably connected on the driving screw rod, an arc-shaped groove matched with the appearance of the pressure pipeline is formed in the sealing part, a sunken sealing cavity is formed in the outer wall of the arc-shaped groove, a detection seat is arranged on the outer wall of the sealing part, a communication hole communicated with the sealing cavity is coaxially formed in the detection seat, a piston is arranged in the detection seat, a sliding cavity for clamping the piston and horizontally and freely sliding is further formed in the detection seat, an induction block is arranged on the piston, a displacement sensor is arranged in the communication hole, and the displacement sensor is matched with the induction block for use, the end face of the piston is provided with a communicating groove which is staggered with the communicating hole and is in a through hole form, an elastic piece is arranged in the sliding cavity, and the elastic piece elastically props against the piston and drives the end face of the piston to prop against the inner side wall of the sliding cavity.

Preferably, the elastic member is a return spring, and two ends of the return spring in the elastic direction respectively elastically abut against the piston and the inner side wall of the sliding cavity.

Preferably, the detection seat is provided with a pressure relief hole communicated with the sliding cavity.

Preferably, the straight section is provided with a plurality of nuts in a threaded sleeve manner, and the nuts are screwed on the straight section to adjust the length of the upper end of the straight section exposed out of the mounting part.

Preferably, a ball head is coaxially arranged on the driving screw rod, a protruding portion is arranged on the sealing portion, and a spherical clamping groove which is used for clamping the ball head and can rotate freely is arranged in the protruding portion.

Preferably, the sealing portion is made of a rubber material as a whole.

Compared with the prior art, the beneficial effects of the utility model are that: through sealing portion and pipeline under pressure outer wall counterbalance, the gaseous medium of pipeline under pressure leakage point gets into the sealed intracavity to under atmospheric pressure effect, promote the piston and remove, make displacement sensor produce the displacement signal of response piece, and then judge that the pipeline under pressure outer wall position that sealing portion corresponds has the leakage point, through setting up drive screw, drive screw is the thread closure soon on the installation department, can drive sealing portion and support tight pipeline under pressure outer wall, avoids producing detection error.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic view of the assembly three-dimensional structure of the present invention;

FIG. 2 is a schematic partial cross-sectional view of the three-dimensional structure of FIG. 1;

FIG. 3 is an exploded view of the pressure line of FIG. 2;

fig. 4 is an enlarged schematic view of a partial three-dimensional structure at a in fig. 2.

In the drawings, the components represented by the respective reference numerals are listed below:

1-pressure pipeline, 2-U-shaped pipe clamp, 3-installation part, 4-driving screw, 5-bulge, 6-sealing part, 7-detection seat, 8-displacement sensor, 9-ball head, 10-spherical clamping groove, 11-piston, 12-reset spring, 13-pressure relief hole, 14-communication groove, 15-sliding cavity, 16-communication hole and 17-sealing cavity.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a detection device for a pressure pipeline comprises a U-shaped pipe clamp 2 arranged on the pressure pipeline 1, wherein the U-shaped pipe clamp 2 comprises two straight sections and an arc-shaped section, two ends of the arc-shaped section are respectively connected with the lower ends of the two straight sections, a plurality of nuts are sleeved on the straight sections through threads, the nuts are screwed on the straight sections through the threads to adjust the length of the upper ends of the straight sections, the installation part 3 is exposed out of the upper ends of the straight sections, meanwhile, the U-shaped pipe clamp 2 can be sleeved on the pressure pipeline 1, the installation part 3 is jointly connected with the two straight sections, a driving screw rod 4 penetrates through the threads on the installation part 3, a sealing part 6 is rotatably connected on the driving screw rod 4, specifically, a ball head 9 is coaxially arranged on the driving screw rod 4, a convex part 5 is arranged on the sealing part 6, a spherical clamping groove 10 which is clamped by the ball head 9 and can freely rotate is arranged in the spherical clamping groove 10 and is limited, so that the driving screw rod 4 is rotatably connected with the sealing part 6, an arc-shaped groove matched with the shape of the pressure pipeline 1 is formed on the sealing part 6, a sunken sealing cavity 17 is formed on the outer wall of the arc-shaped groove, the U-shaped pipe clamp 2 is sleeved on the pressure pipeline 1, the sealing part 6 corresponds to a suspected leakage point of the pressure pipeline 1, then the driving screw rod 4 is rotated, the driving screw rod 4 is screwed on the mounting part 3 and is rotatably connected with the sealing part 6, the sealing part 6 is tightly propped against the outer part of the pressure pipeline 1, the propping surface of the sealing cavity 17 and the outer wall of the pressure pipeline 1 is in a sealing state, a detection seat 7 is arranged on the outer wall of the sealing part 6, a communication hole 16 communicated with the sealing cavity 17 is coaxially formed on the detection seat 7, a piston 11 is arranged in the detection seat 7, a sliding cavity 15 which is clamped by the piston 11 and can horizontally and freely slide is further formed in the detection seat 7, an induction block is arranged on the piston 11, and a displacement sensor 8 is arranged in the communication hole 16, the displacement sensor 8 is used in cooperation with the induction block, a through hole type communication groove 14 staggered with the communication hole 16 is formed in the end face of the piston 11, a return spring 12 is arranged in the sliding cavity 15, two ends of the return spring 12 in the elastic force direction elastically abut against the inner side walls of the piston 11 and the sliding cavity 15 respectively, and the end face of the piston 11 is driven to abut against the inner side wall of the sliding cavity 15, because the communication groove 14 on the piston 11 and the communication hole 16 are staggered, the abutting face of the piston 11 and the sliding cavity 15 is in a sealing state, when the sealing cavity 17 is positioned on a leakage point of the pressure pipeline 1, gas medium in the leakage point can enter the sealing cavity 17, as the gas medium is accumulated more, the gas medium enters the communication hole 16 and then generates air pressure thrust on the piston 11, so that the piston 11 is far away from the sealing part 6, and further the gas medium can enter the sliding cavity 15 through the communication hole 16 and the communication groove 14, because the gas medium has promoted piston 11 and has produced the removal, make the response piece produce corresponding displacement, and then make displacement sensor 8 detect the displacement of response piece, and produce signal feedback to external control ware, external control ware judges that pipeline under pressure 1 corresponds the position of sealing 6 and has the leak source, need maintain, in addition, be equipped with the pressure release hole 13 with sliding cavity 15 intercommunication on the detection seat 7, the gas medium that gets into sliding cavity 15 can carry out the pressure release through pressure release hole 13, sealing 6 is whole to be made by the rubber material, make the leakproofness after sealing cavity 17 on the sealing 6 and the laminating of pipeline under pressure 1 outer wall better like this, through above-mentioned method, can remove sealing 6 to pipeline under pressure 1 on a plurality of suspected leak sources, and then judge the leakage of pipeline under pressure 1.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A detection device for a pressure pipeline comprises a U-shaped pipe clamp (2) installed on the pressure pipeline (1), wherein the U-shaped pipe clamp (2) comprises two straight sections and an arc-shaped section, the two ends of the arc-shaped section are respectively connected with the lower ends of the two straight sections, the detection device is characterized in that an installation part (3) is jointly connected with the two straight sections, a driving screw (4) is arranged on the installation part (3) in a penetrating mode through threads, a sealing part (6) is connected onto the driving screw (4) in a rotating mode, an arc-shaped groove matched with the appearance of the pressure pipeline (1) is formed in the sealing part (6), a sunken sealing cavity (17) is formed in the outer wall of the arc-shaped groove, a detection seat (7) is arranged on the outer wall of the sealing part (6), a communication hole (16) communicated with the sealing cavity (17) is coaxially formed in the detection seat (7), a piston (11) is arranged in the detection seat (7), the detection device is characterized in that a sliding cavity (15) which is used for clamping a piston (11) and can horizontally and freely slide is further formed in the detection seat (7), an induction block is arranged on the piston (11), a displacement sensor (8) is arranged in the communication hole (16), the displacement sensor (8) is matched with the induction block for use, a communication groove (14) which is staggered with the communication hole (16) and is in a through hole form is formed in the end face of the piston (11), an elastic piece is arranged in the sliding cavity (15), and the elastic piece elastically abuts against the piston (11) and drives the end face of the piston (11) to abut against the inner side wall of the sliding cavity (15).

2. The pressure pipeline detection device according to claim 1, wherein the elastic member is a return spring (12), and two ends of the return spring (12) in the elastic direction elastically abut against the inner side walls of the piston (11) and the sliding cavity (15), respectively.

3. The device for detecting the pressure pipeline according to claim 1, wherein the detection seat (7) is provided with a pressure relief hole (13) communicated with the sliding cavity (15).

4. The device for detecting the pressure pipeline according to claim 1, wherein a plurality of nuts are sleeved on the straight section in a threaded manner, and the nuts are screwed on the straight section in a threaded manner so as to adjust the length of the upper end of the straight section exposed out of the mounting part (3).

5. The device for detecting the pressure pipeline according to claim 1, wherein a ball head (9) is coaxially arranged on the driving screw rod (4), a protruding portion (5) is arranged on the sealing portion (6), and a spherical clamping groove (10) which is used for clamping the ball head (9) and can rotate freely is arranged in the protruding portion (5).

6. A device for detecting a pressure pipe according to claim 1, characterized in that the sealing part (6) is made entirely of rubber.