CN206522621U - Pressure Pipe Leakage Detection device - Google Patents

Abstract

The utility model discloses a kind of pressure Pipe Leakage Detection device, including pressure testing part and two plugs for closed conduct two ends.The pressure testing part is ring-type, and its inner ring surface is provided with annular groove, and the annular groove both sides are inlaid with sealing ring；Also include an air gauge, the air gauge is installed on pressure testing part and connected with annular groove；The pressure testing part is put together by the component of two semi-annular shapes；One end of described two components is connected by bearing pin, and the other end is provided with the boss for connection, the boss and is provided with the screw run through；Detection means with said structure, its is simple in construction, and detection process is efficient and convenient.It is adapted to less demanding in field etc., and the occasion of precision instrument can not be carried uses.

Description

Pressure pipeline leak detection device

technical field

The utility model relates to a device for detecting whether there is leakage in the welding seam of a pressure pipeline.

Background technique

Pressure piping refers to all piping subjected to internal or external pressure, regardless of the medium in the pipe. The pressure pipeline is a part of the pipeline. The pipeline is used to convey, distribute, mix, separate, discharge, measure, control and stop fluid flow. It consists of pipes, fittings, flanges, bolted connections, gaskets, valves, and other components. Or the assembly assembly composed of pressure parts and supports.

In order to increase the length of the pipes, welding between the pipes is essential. High-length pressure pipes are connected by multiple short pressure pipes. The two pressure pipes are connected by welding and other connection methods. After the pressure pipes have been working for a long time, the welded joints of the pressure pipes It is prone to aging, and the aged pressure pipeline will leak during the working process, which will not only cause waste of raw materials, but even affect the safe production of the enterprise.

Existing pressure pipeline detection equipment is generally relatively large and expensive, and the price cannot be afforded for some non-professional users.

Utility model content

Aiming at the above-mentioned technical problems, the utility model provides a pressure pipeline leakage detection device, which can test whether there is leakage at the weld seam of the pipeline. The utility model has a simple structure and is convenient for transportation.

In order to solve the above technical problems, the technical solution adopted by the utility model is: a pressure pipeline leakage detection device, including a pressure test component and two plugs for sealing the two ends of the pipeline.

The pressure test part is ring-shaped, and an annular groove is formed on the inner ring surface, and sealing rings are inlaid on both sides of the ring groove; a barometer is also included, and the barometer is installed on the pressure test part and connected with the ring recess. The grooves are connected; the pressure test part is composed of two semi-circular components; one end of the two components is connected by a pin, and the other end is provided with a boss for connection. the screw hole;

The plug includes a baffle for closing the opening of the pipeline and a connecting plate that can be fixed on the pipeline, and the baffle is provided with a connecting screw hole matching the position of the screw hole on the connecting plate; the baffle is provided with There is a circular platform, the outer diameter of the circular platform is consistent with the inner diameter of the pipeline; the junction of the circular platform and the baffle is provided with an annular installation groove, and the width of the bottom of the installation groove is consistent with the wall thickness of the pipeline; the installation groove is provided with O type sealing ring; and at least one baffle is provided with a joint connected with the compressed air tank, and the joint is provided with a valve.

As an improvement, a coil pipe is arranged between the air pressure gauge and the pressure testing component. Avoid instantaneous pressure from destroying the barometer.

As an improvement, it also includes several positioning bolts penetrating through the inner and outer ring surfaces of the pressure test part. Prevent the rotation of the pressure test parts from affecting the test results.

As an improvement, the front end of the circular table has chamfers. It plays a guiding role during assembly and can avoid scratching the inner wall of the pipe.

As a preference, a slope for guiding is provided at the opening of the installation groove.

The utility model is beneficial in that: the detection device with the above structure has a simple structure, and the detection process is fast and convenient. It is suitable for use in the field where the requirements are not high and precision instruments cannot be carried.

Description of drawings

Figure 1 is a cross-sectional view of the pressure test component.

Figure 2 Sectional view of pressure test components.

Fig. 3 is a schematic cross-sectional structural view of the plug.

Marks in the figure: 1 pressure test part, 2 annular groove, 3 boss, 4 pressure gauge, 5 coil, 6 baffle, 7 round platform, 8 sealing ring, 9 positioning bolt, 10 installation groove, 11O type sealing ring, 12 joints, 13 valves, 14 connection plates, 15 pipes.

detailed description

Below in conjunction with accompanying drawing, the utility model is described in detail.

In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

As shown in Figures 1-3, the utility model includes a pressure test component 1 and two plugs for sealing both ends of the pipeline.

The pressure test part 1 is ring-shaped, and its inner ring surface is provided with an annular groove 2, and a sealing ring 8 is inlaid on both sides of the annular groove 2; it also includes a barometer 4, and the barometer 4 is installed in the pressure test The component 1 communicates with the annular groove 2; a coil 5 is arranged between the air pressure gauge 4 and the pressure test component 1. The pressure test part 1 is composed of two semi-circular components; one end of the two components is connected by a pin, and the other end is provided with a boss 3 for connection, and the boss 3 is opened with a penetrating screw holes; including a number of positioning bolts 9 penetrating through the inner and outer ring surfaces of the pressure test component 1.

The plug includes a baffle 6 for closing the opening of the pipeline and a connecting plate 14 that can be fixed on the pipeline 15. The baffle 6 is provided with a connecting screw hole that matches the position of the screw hole on the connecting plate 14; The baffle plate 6 is provided with a circular platform 7, the outer diameter of the circular platform 7 is consistent with the inner diameter of the pipeline 15; the junction of the circular platform 7 and the baffle plate 6 is provided with an annular installation groove 10, and the width of the bottom of the installation groove 10 is the same as The pipe 15 has the same wall thickness; the installation groove 10 is provided with an O-ring 11 ; and at least one baffle 6 is provided with a joint 12 connected with a compressed air tank, and a valve 13 is provided on the joint 12 . The front end of the round table 7 has chamfers. A slope for guiding is provided at the opening of the installation groove 10 .

The structure of the connecting plate 14 is varied, as long as it can be fixed on the pipe 15 no matter by clamping or bolt positioning. I won't repeat it here.

When working, put the pressure test component 1 on the pipeline 15 to be tested, and align the annular groove 2 with the weld seam. The two bosses 3 are fastened by bolts, and positioned by positioning bolts 9 to prevent rotation. The two ends of the pipe 15 are closed by the baffle plate 6 with two plugs, the round platform 7 extends into the interior of the pipe 15, the edge of the pipe 15 is inserted into the installation groove 10, and finally the baffle plate 6 and the connecting plate fixed on the pipe 15 are connected by bolts. 14 connections.

Connect the joint 12 to the compressed air tank, open the valve 13 and put in the compressed air, then close the valve 13. Observe the barometer 4, if the pointer on the barometer 4 indicates that the air pressure continues to increase, it means that there is a leak in the weld. If the pointer does not move, it means there is no leak in the weld.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present utility model shall be included in this utility model. within the scope of protection of utility models.

Claims (5)

1. a kind of pressure Pipe Leakage Detection device, including pressure testing part and two plugs for closed conduct two ends；Its It is characterised by：

The pressure testing part is ring-type, and its inner ring surface is provided with annular groove, and the annular groove both sides are inlaid with sealing ring；Also wrap An air gauge is included, the air gauge is installed on pressure testing part and connected with annular groove；The pressure testing part is by two and half Circular component is put together；One end of described two components is connected by bearing pin, and the other end is provided with for the convex of connection The screw run through is provided with platform, the boss；

The plug includes opening on the connecting plate that is used for the baffle plate of closed conduct opening and can be fixed on pipeline, the baffle plate There is the connecting screw hole being coincide with the screwhole position on connecting plate；Round platform, the external diameter and pipe of the round platform are provided with the baffle plate Road internal diameter is consistent；The intersection of the round platform and baffle plate is provided with the mounting groove of annular, the installation groove bottom width and duct wall It is thick consistent；O-ring seal is provided with the mounting groove；And it is provided with least one piece baffle plate tank connected with compressed air Valve is provided with joint, and joint.

2. a kind of pressure Pipe Leakage Detection device according to claim 1, it is characterised in that：The air gauge and pressure testing Coil pipe is provided between part.

3. a kind of pressure Pipe Leakage Detection device according to claim 1, it is characterised in that：Also include some through examination The bolt of anchor ring inside and outside splenium part.

4. a kind of pressure Pipe Leakage Detection device according to claim 1, it is characterised in that：The round platform front end has Chamfering.

5. a kind of pressure Pipe Leakage Detection device according to claim 1, it is characterised in that：At the installation channel opening It is provided with the slope for guiding.