Pressure detection instrument for pressure vessel leakage detection

Abstract

The utility model discloses a pressure detection instrument used for pressure vessel leakage detection, and aims to solve the technical problems that the assembly is tedious and complex, and the pressure detection instrument cannot be adjusted and used according to the diameter of a pipeline in the prior art. Comprising a pipeline and a sealing cover, a sealing gasket is fixedly connected to the inner side wall of the sealing cover, the end face of the pipeline abuts against the sealing gasket, a baffle is in threaded connection with the side wall of the sealing cover, the baffle is annular, a fastener is arranged on the side wall of the pipeline, the baffle abuts against the fastener, and a connector is fixedly connected to the center of the side wall of the sealing cover; according to the pipeline sealing device, the baffles and the locking pieces of different models can be selected for use according to the diameter of a pipeline, the end of the pipeline can be conveniently sealed, meanwhile, the pipeline sealing device is matched with the connector to inject gas, and the pipeline sealing device can be used for judging the sealing performance of the interior of the pipeline.

Description

Technical Field

[0001] The utility model belongs to the technical field of leakage detection, and in particular relates to a pressure detection instrument used for leakage detection of pressure vessels. Background Art

[0002] Pipeline pressure testing refers to the process of monitoring and testing the pressure inside the pipeline system, especially in the fields of liquid or gas transportation, industrial production, fire protection systems, etc. Too high or too low pressure in the pipeline system may cause system failure, leakage or other safety issues. By regularly testing the pipeline pressure, you can ensure that the system is within a safe working range and promptly discover and resolve potential safety hazards.

[0003] After the installation of the pipeline, it needs to be tested for sealing. General testing methods include water pressure test, air pressure test, etc. The water pressure test process is relatively slow and requires a large amount of water to be injected into the pipeline. If the pipeline is used for gas medium transportation, the residual moisture inside it will affect the gas transportation and pipeline maintenance. Secondly, the existing air pressure testing equipment is cumbersome and complicated to assemble, and has poor versatility, which is not conducive to practical application.

[0004] Therefore, a pressure detection instrument for pressure vessel leakage detection is designed to change the above technical defects. Utility Model Content

[0005] (1) Technical issues to be solved

[0006] In view of the deficiencies of the prior art, the purpose of the utility model is to provide a pressure detection instrument for pressure vessel leakage detection, which aims to solve the technical problems of the prior art that the assembly is cumbersome and complicated and the use cannot be adjusted according to the pipe diameter.

[0007] (2) Technical solution

[0008] In order to solve the above technical problems, the utility model provides a pressure detection instrument for pressure vessel leakage detection, including a pipeline and a sealing cover, the inner wall of the sealing cover is fixedly connected with a sealing gasket, the end face of the pipeline abuts against the sealing gasket, the side wall of the sealing cover is threadedly connected with a baffle, the baffle is annular, the side wall of the pipeline is provided with a fastener, the baffle abuts against the fastener, and a joint is fixedly connected at the center of the side wall of the sealing cover.

[0009] Furthermore, the fastener comprises two arc-shaped plates, bolts are arranged between the two arc-shaped plates, a plurality of screw holes are arranged on the end faces of the arc-shaped plates, and push rods are threadedly connected in the screw holes.

[0010] Furthermore, a ball is movably connected to the end surface of the push rod, and the baffle plate abuts against the ball.

[0011] Furthermore, a plurality of annular grooves are provided on the inner side wall of the baffle, and the balls are located in the annular grooves.

[0012] Furthermore, the baffle is hexagonal in shape, and circular holes are respectively provided on the six side walls of the baffle.

[0013] Furthermore, the inner side walls of the arc-shaped plates are fixedly connected with rubber pads.

[0014] Furthermore, a plurality of grooves are provided on the side wall of the sealing gasket, the grooves are annular, and the end faces of the pipes abut against the grooves.

[0015] (3) Beneficial effects

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] The utility model, through the design of the pipeline, sealing cover, baffle and fastener, can select different types of baffles and locking parts according to the diameter of the pipeline, so as to facilitate the sealing of the end of the pipeline. At the same time, the gas is injected into the joint to judge the sealing inside the pipeline, and the problem of cumbersome and complicated assembly of existing medium air pressure testing machinery is effectively solved, thereby improving its convenience of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional diagram of the utility model;

[0019] Figure 2 It is a cross-sectional structural schematic diagram of the utility model;

[0020] Figure 3 This is a schematic cross-sectional structural diagram of the baffle of the utility model;

[0021] Figure 4 It is a structural schematic diagram of the locking member of the utility model;

[0022] Figure 5 It is a structural schematic diagram of the top rod of the utility model;

[0023] Figure 6 For this utility model Figure 2 Enlarged view of point A in .

[0024] The markings in the attached drawings are: 1. pipe; 2. sealing cover; 3. baffle; 4. sealing gasket; 5. arc plate; 6. bolt; 7. rubber pad; 8. push rod; 9. screw hole; 10. ball; 11. annular groove; 12. round hole; 13. joint; 14. slot. DETAILED DESCRIPTION

[0025] This specific embodiment is a pressure detection instrument for pressure vessel leakage detection, and its structural schematic diagram is as follows Figure 1-Figure 6As shown, it includes a pipeline 1 and a sealing cover 2, the inner wall of the sealing cover 2 is fixedly connected with a sealing gasket 4, the end face of the pipeline 1 abuts against the sealing gasket 4, the side wall of the sealing cover 2 is threadedly connected with a baffle 3, the baffle 3 is annular, the side wall of the pipeline 1 is provided with a fastener, the baffle 3 abuts against the fastener, and a joint 13 is fixedly connected at the center of the side wall of the sealing cover 2.

[0026] The sizes of the baffle 3 and the locking member are not limited to the present solution, and can be selected and used according to the actual testing of pipelines 1 in different fields, so that they have good flexibility.

[0027] like Figure 3 As shown, the fastener includes two arc plates 5, a bolt 6 is installed between the two arc plates 5, and a plurality of screw holes 9 are provided on the end surface of the arc plate 5, and a push rod 8 is threadedly connected in each of the screw holes 9. A ball 10 is movably connected to the end surface of the push rod 8, and the baffle plate 3 abuts against the ball 10. A plurality of annular grooves 11 are provided on the inner side wall of the baffle plate 3, and the ball 10 is located in the annular groove 11. A rubber pad 7 is fixedly connected to the inner side wall of the arc plate 5.

[0028] Specifically, when installing the arc plate 5 on the pipe 1, the approximate installation position of the arc plate 5 is first calculated according to the movement stroke of the baffle 3, and then locked by the bolts 6 to ensure that the arc plate 5 will not loosen when subjected to force. At the same time, when used in conjunction with the rubber pad 7, the friction between the arc plate 5 and the pipe 1 can be further enhanced, and the surface of the pipe 1 can also be protected.

[0029] like Figure 1 and Figure 2 As shown, the baffle plate 3 is hexagonal in shape, and circular holes 12 are respectively formed on the six side walls of the baffle plate 3 .

[0030] Specifically, the inner wall of the baffle 3 is provided with a thread for connecting with the sealing cover 2, and the outer wall of the baffle 3 is hexagonal, which is convenient for use with a wrench. During assembly, the baffle 3 can be rotated with a wrench to achieve a tightening effect; in addition, if a wrench is not available, a crowbar can also be used. The crowbar can be inserted into the circular hole 12, and pressing the crowbar can also drive the baffle 3 to rotate, which is more flexible.

[0031] like Figure 2 and Figure 3 As shown, the side wall of the sealing gasket 4 is provided with a plurality of grooves 14 , the grooves 14 are annular, and the end surface of the pipe 1 abuts against the grooves 14 .

[0032] The cross-sectional shape of the slot 14 is a trapezoid, so as to facilitate the insertion of the end face of the pipe 1 and is suitable for pipes 1 with different wall thicknesses.

[0033] Working principle: When sealing the end face of the pipeline 1, first select a baffle 3 of appropriate size and put it on the pipeline 1 first, then put the arc plates 5 on both sides on the pipeline 1, and use bolts 6 to lock it so that it is firmly put on the pipeline 1, then put the sealing cover 2 against the end face of the pipeline 1, and rotate the baffle 3 so that the baffle 3 can be translated along the sealing cover 2 through the thread, and at the same time, the inner wall of the baffle 3 is against the ball 10. In order to ensure further sealing, the baffle 3 can be rotated by a wrench or a crowbar, so that the baffle 3 is close to the push rod 8, and at the same time, the end face of the pipeline 1 fits in the groove 14 to achieve the sealing purpose, and then the gas is injected into the pipeline 1 through the joint 13, and the pressure change is observed after the negative pressure in the pipeline 1 to achieve the purpose of leak detection.

[0034] All technical features in this embodiment can be freely combined according to actual needs.

[0035] The above embodiments are preferred implementation schemes of the present invention. In addition, the present invention can also be implemented in other ways. Any obvious replacement without departing from the concept of the present technical solution is within the protection scope of the present invention.

Claims

1. A pressure detection instrument for pressure vessel leakage detection, characterized in that: The invention comprises a pipeline (1) and a sealing cover (2), wherein a sealing gasket (4) is fixedly connected to the inner side wall of the sealing cover (2), the end face of the pipeline (1) abuts against the sealing gasket (4), a baffle (3) is threadedly connected to the side wall of the sealing cover (2), the baffle (3) is annular, a fastener is provided on the side wall of the pipeline (1), the baffle (3) abuts against the fastener, and a joint (13) is fixedly connected at the center of the side wall of the sealing cover (2).

2. The pressure detection instrument for pressure vessel leakage detection according to claim 1, characterized in that: The fastener comprises two arc-shaped plates (5), a bolt (6) is installed between the two arc-shaped plates (5), and a plurality of screw holes (9) are opened on the end surface of the arc-shaped plate (5), and a push rod (8) is threadedly connected in each of the screw holes (9).

3. The pressure detection instrument for pressure vessel leakage detection according to claim 2, characterized in that: The end surface of the push rod (8) is movably connected with a ball (10), and the baffle (3) abuts against the ball (10).

4. The pressure detection instrument for pressure vessel leakage detection according to claim 3, characterized in that: The inner side wall of the baffle (3) is provided with a plurality of annular grooves (11), and the balls (10) are located in the annular grooves (11).

5. The pressure detection instrument for pressure vessel leakage detection according to claim 1, characterized in that: The baffle (3) is hexagonal in shape, and circular holes (12) are respectively provided on the six side walls of the baffle (3).

6. The pressure detection instrument for pressure vessel leakage detection according to claim 2, characterized in that: The inner side walls of the arc-shaped plates (5) are fixedly connected with rubber pads (7).

7. The pressure detection instrument for pressure vessel leakage detection according to claim 1, characterized in that: The side wall of the sealing gasket (4) is provided with a plurality of grooves (14), the grooves (14) are annular, and the end faces of the pipes (1) abut against the grooves (14).

Images