CN206488903U - Pressure pipeline weld seam detection means - Google Patents

Abstract

The utility model discloses a pressure pipe welding seam detection device, which comprises a ring-shaped pressure test part, an annular groove is opened on the inner ring surface of the pressure test part, and sealing rings are inlaid on both sides of the ring groove; it also includes a A connecting pipe, one end of the connecting pipe is connected with the pressure test part and leads to the annular groove, and the other end is provided with a joint connected with the compressed air tank; the connecting pipe is provided with a valve; it also includes an air pressure gauge, the air pressure gauge Connected between the valve and the pressure test part; the pressure test part is composed of two semicircular components; one end of the two components is connected by a pin, and the other end is provided with a boss for connection. There are through screw holes on the boss. 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

Pressure pipeline weld detection device

technical field

The utility model relates to a simple device for detecting whether the welding seam of a pressure pipeline leaks.

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 shorter 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 welding seam connection Aging is prone to occur in the place, and the aging 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 weld seam detection device, which can test whether there is leakage at the weld seam of the pipeline, and 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 weld seam detection device, which includes an annular pressure test part, and the inner ring surface of the pressure test part is provided with an annular groove, and the annular groove Sealing rings are inlaid on both sides; a connecting pipe is also included, one end of the connecting pipe is connected with the pressure test part and reaches the annular groove, and the other end is provided with a joint connected with the compressed air tank; the connecting pipe is provided with a valve; It includes an air pressure gauge, which is connected between the valve and the pressure test part; 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 A boss for connection is provided, and a through screw hole is opened on the boss.

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

As an improvement, a rubber gasket is provided on the end surface of the boss. Increase the airtightness between the end faces of the bosses, thereby improving the accuracy of detection.

As an improvement, there are four sealing rings arranged on both sides of the annular groove to improve the airtightness between the pressure test part and the pipe to be tested.

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

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

Fig. 1 is a schematic cross-sectional structure diagram of the utility model.

Figure 2. Schematic diagram of the cross-sectional structure of the pressure test parts.

Marks in the figure: 1 pressure test part, 2 annular groove, 3 boss, 4 connecting pipe, 5 valve, 6 barometer, 7 coil, 8 sealing ring.

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 Figure 1 and Figure 2, the utility model includes an annular pressure test part 1, the inner ring surface of the pressure test part 1 is provided with an annular groove 2, and a sealing ring 8 is inlaid on both sides of the annular groove 2; There are 4 sealing rings 8, which are arranged on both sides of the annular groove 2, and are used to improve the airtightness between the pressure test part and the pipe to be tested. It also includes a connecting pipe 4, one end of the connecting pipe 4 is connected with the pressure test part 1 and reaches the annular groove 2, and the other end is provided with a joint connected with the compressed air tank; the connecting pipe 4 is provided with a valve 5; An air pressure gauge 6 is included, and the air pressure gauge 6 is connected between the valve 5 and the pressure testing part 1; a coil pipe 7 is arranged between the air pressure gauge 6 and the connecting pipe 4. 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 has a through hole screw holes. Rubber gaskets are arranged on the end faces of the convex 3 sets. It also includes several positioning bolts 9 penetrating through the inner and outer ring surfaces of the pressure test component 1 .

When in use, the pressure test component 1 is set on the pipe to be tested, and the annular groove 2 is aligned with the weld seam. The two bosses 3 are fastened by bolts, and positioned by positioning bolts 9 to prevent rotation. Connect the joint of the connecting pipe 4 to the compressed air tank, open the valve 5 to put in compressed air, and then close the valve 5. Observe the barometer 6, if the pointer on the barometer 6 indicates that the air pressure continues to decrease, 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 pipeline weld seam detection means, it is characterised in that：Pressure testing part including ring-type, the pressure testing part inner ring Face is provided with annular groove, and the annular groove both sides are inlaid with sealing ring；Also include connecting tube, described connecting tube one end with Pressure testing part is connected and sensible annular groove, and the other end is provided with and the tank connected joint of compressed air；Set in the connecting tube It is equipped with valve；Also include an air gauge, the air gauge is connected between valve and pressure testing part；The pressure testing part is by two The component of individual semi-annular shape is put together；One end of described two components is connected by bearing pin, and the other end is provided with for connecting Boss, be provided with the screw run through on the boss.

2. a kind of pressure pipeline weld seam detection means according to claim 1, it is characterised in that：The air gauge is with being connected Coil pipe is provided between pipe.

3. a kind of pressure pipeline weld seam detection means according to claim 1, it is characterised in that：Set on the raised head face It is equipped with rubber sheet gasket.

4. a kind of pressure pipeline weld seam detection means according to claim 1, it is characterised in that：The sealing ring is 4, It is respectively in annular groove both sides.

5. a kind of pressure pipeline weld seam detection means according to claim 1, it is characterised in that：Also include some through examination The bolt of anchor ring inside and outside splenium part.