CN208074347U - A special tooling for socket pressure test - Google Patents

Abstract

The utility model discloses a special tooling for socket pressure test, comprising a pressing sleeve (1), one end of the pressing sleeve (1) is provided with a hypotenuse structure (6), the diameter of the hypotenuse structure (6) is determined by the The middle part of the pressing sleeve (1) gradually increases toward the end, the other end of the pressing sleeve (1) is provided with a hem (4), and the middle part of the pressing sleeve (1) is provided with a water injection hole communicating with the inside and outside, The water injection hole is used for installing the pressure nozzle (2), and the pressure nozzle (2) is connected with a hydraulic machine to realize the hydraulic pressure test of the pipeline to be tested. The special tooling for the socket pressure test of the utility model is convenient to connect the pressure sleeve with the end of the pipeline to be tested by setting the bevel structure and the folded edge, and a pressure nozzle is provided directly at the two sealing rings of the pipeline to be tested, which is convenient for connecting the hydraulic machine for hydraulic pressure testing. Pressure test, so as to realize the overall hydraulic test of the pipeline to be tested, not only the structure is simple, the installation and disassembly are convenient and fast, but also the efficiency of hydraulic test is greatly improved.

Description

A special tooling for socket pressure test

technical field

The utility model belongs to the technical field of hydraulic testing, and more particularly relates to a special tooling for socket pressure testing.

Background technique

A pipeline is a device used to transport gas, liquid or fluid with solid particles connected by pipes, pipe connectors and valves. Usually, after the fluid is pressurized by blowers, compressors, pumps and boilers, it flows from the high-pressure part of the pipeline to the low-pressure part, and it can also be transported by the pressure or gravity of the fluid itself. Pipes are widely used, mainly in water supply, drainage, heat supply, gas supply, long-distance transportation of oil and natural gas, agricultural irrigation, hydraulic engineering and various industrial devices. Due to the advantages of low cost, energy saving, high safety and stable supply, pipeline transportation has been widely used in all walks of life and has become an indispensable part of modern society.

Insulation pipes are required for thermal insulation projects in petroleum, chemical, aerospace, military, central heating, central air conditioning, municipal and other pipelines. In low-temperature environments, such as the Northeast affected by high latitudes, there are many deep seasonally frozen soil areas. In order to avoid pipeline ruptures induced by low-temperature environments (such as pipes cracking due to volume expansion after freezing water), pipelines often need to have thermal insulation; in addition, In southern China, although the temperature is high in winter, there is still the possibility of severe cold extreme weather conditions, and severe cold weather will also induce damage to outdoor pipes (especially water pipes), affecting normal production and life. The traditional thermal insulation pipeline adopts the "pipe-in-pipe" mode of pressure pipeline + insulation layer + outer protective tube. The insulation layer is only in physical contact with the inner and outer pipelines. In addition, the commonly used inner and outer pipeline materials (such as steel and other metal materials) themselves conduct heat. If the coefficient is large, it will have a negative effect on heat preservation and affect the heat preservation effect of heat preservation pipes.

Bamboo material is a renewable green environmental protection material. In recent years, with the increasing maturity of bamboo composite pressure pipe related technologies (for example, Chinese patent documents CN105546230A, CN101571213A and CN202327397U), bamboo composite pipe, as a pipeline that can withstand a certain pressure, is used in In water supply and drainage projects, petrochemical anti-corrosion and other occasions, it can generally replace polyvinyl chloride pipes, polyethylene pipes, glass steel pipes, glass fiber reinforced plastic sand pipes, etc., and has a good application prospect.

After the bamboo winding pipes are delivered for use, they need to be hydrostatically tested after they are assembled at the construction site. During the test, all the pipe openings should be sealed, and a certain pressure should be applied, generally three times the normal water pressure, to observe whether there are cracks, excessive deformation or even water leakage in the pipes.

At present, the bamboo winding pipeline has been installed when the hydraulic test is carried out in practice. The operation of sealing the pipeline is to use the sealing plug to weld the ports at both ends of the pipeline. The plug is equipped with a water inlet, a drain and an air outlet. , When testing is required, the plug is first welded to both ends of the pipe, and then the water inlet is used to raise a certain pressure of water in the inner hole of the pipe, and the water is emptied after the pressure is maintained for a certain period of time, and then the plug is removed. The entire pressure test process takes a long time, and the welding and disassembly of the plug is cumbersome, which is easy to damage the end of the pipeline. After the plug is removed, the pipeline needs to be welded to relieve stress later, and the test cost increases. In addition, once the seal leakage problem occurs, it needs to be disassembled as a whole, which is inefficient, labor-intensive, costly, and delays the construction period. If the hydraulic pressure test is performed on the pipeline alone, and there is no suitable device, it is guaranteed to carry out the hydraulic pressure test on the pipeline conveniently and quickly.

Utility model content

In view of the above defects or improvement needs of the prior art, the utility model provides a special tooling for socket pressure testing, which aims to solve the problems of inconvenient overall testing and low efficiency during pipeline hydraulic testing.

In order to achieve the above purpose, the utility model provides a special tooling for socket pressure test, the special tooling includes a pressing sleeve;

One end of the pressure sleeve is provided with a bevel structure, and the diameter of the bevel structure gradually increases from the middle of the pressure sleeve to the end, so as to realize a smooth transition and facilitate the installation of the pipeline to be tested and the pressure sleeve;

The other end of the pressure sleeve is provided with a folded edge, which is convenient for the end of the pipeline to be tested to abut against the folded edge during installation, so as to ensure that the pipeline to be tested is installed in place;

A water injection hole communicating with the inside and outside is provided in the middle of the pressure sleeve, and the water injection hole is used for installing a pressure nozzle, and the pressure nozzle is connected with a hydraulic machine to realize the hydraulic test of the pipeline to be tested.

As a further preference of the present invention, the pressure nozzle is arranged between two sealing rings at the end of the pipeline to be tested.

As a further preference of the present invention, the detachable connection between the pressing nozzle and the pressing sleeve is realized through bolts.

As a further preference of the present invention, a plurality of small holes are provided on the folded edge of the pressing sleeve.

As a further preference of the present invention, the pressure sleeve is a hollow ring structure with openings at both ends, and its diameter can be directly determined according to the pipe to be tested.

As a further preference of the present invention, a handle is provided on the side wall of the pressing sleeve.

Generally speaking, compared with the prior art, the above technical solutions conceived by the utility model can achieve the following beneficial effects:

(1) The special tooling for the socket pressure test of the utility model is convenient to connect the pressure sleeve with the end of the pipeline to be tested by setting the hypotenuse structure and the folded edge, and a pressure nozzle is provided directly at the two sealing rings of the pipeline to be tested, which is convenient for connection The hydraulic machine performs the hydraulic test to realize the overall hydraulic test of the pipeline to be tested. Not only is the structure simple, the installation and disassembly are convenient and quick, but the efficiency of the hydraulic test is greatly improved.

(2) The special tooling for socket pressure test of the utility model is provided with a small hole on the flange at the end of the collar. After the installation is in place, the inner ring is offset against the end of the pipe. If the leak is not tight, it is difficult to observe, or if the leak is small, the leaked water cannot flow out in time and cannot be observed. After setting the small hole, the leak will be found in time to improve the reliability of detection.

(3) In the special tooling for socket pressure test of the present utility model, one end of the pressure sleeve is an open bevel, which can be quickly introduced into the pipeline to be tested; Separation under action.

(4) The special frock for socket pressure test of the present utility model is equipped with a handle on the outer wall of the collar to facilitate moving the frock, and the handle can also be used as a suspension ring to facilitate the hoisting and transportation of the frock.

Description of drawings

Fig. 1 is a three-dimensional structural schematic diagram of a special tooling for socket pressure test according to the embodiment of the present invention;

Fig. 2 is a front view of a special tooling for socket pressure test according to the embodiment of the present invention;

Fig. 3 is a side view of a special tooling for socket pressure test according to the embodiment of the present invention.

In all the drawings, the same reference numerals represent the same technical features, specifically: 1-pressing sleeve, 2-pressing nozzle, 3-small hole, 4-folding, 5-handle, 6-bevel structure.

Detailed ways

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. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute conflicts with each other.

Fig. 1 is a three-dimensional structural schematic diagram of a special tooling for socket pressure test according to the embodiment of the present invention. As shown in FIG. 1 , the special tooling for the socket pressure test includes a pressing sleeve 1 , a pressing nozzle 2 , a small hole 3 , a folded edge 4 and a handle 5 . Wherein, the pressure sleeve 1 is a hollow ring structure with openings at both ends, and its diameter can be directly determined according to the pipe to be tested. The special tooling for socket pressure test of the utility model is convenient to connect the pressure sleeve with the end of the pipeline to be tested by setting the bevel structure and the folded edge, and a pressure nozzle is provided at the direct position of the two sealing rings of the pipeline to be tested, which is convenient to connect the hydraulic machine for water Pressure test, so as to realize the overall hydraulic test of the pipeline to be tested, not only the structure is simple, the installation and disassembly are convenient and fast, but also the efficiency of the hydraulic test is greatly improved.

As shown in Figure 1, on the outer circumference of the pressure sleeve, it is preferable to set a water injection hole connected to the inside and outside of the middle of the pressure sleeve 1. The water injection hole is used to install the pressure nozzle 2, and the pressure nozzle 2 and the pressure sleeve 1 can be disassembled, such as Bolt connection.

In a preferred embodiment of the present utility model, as shown in Figure 1, the position of the water injection hole corresponds to the sealing structure of the port of the pipeline to be tested, and the end of the pipeline to be tested is generally provided with two sealing grooves for corresponding installation of two sealing grooves. There are two sealing rings, and the pressure nozzle 2 is set between the two sealing rings. On the one hand, it can ensure that water injection or drainage can be smoothly realized through the pressure nozzle 2, and at the same time, it can ensure that the pipe to be tested is well sealed and does not leak.

In a preferred embodiment of the present utility model, as shown in FIG. 1 , the other end of the pressure sleeve 1 is provided with a flange 4 , which is convenient for the end of the pipeline to be tested to abut against it during installation, thereby ensuring that the pipeline to be tested is installed in place.

In a preferred embodiment of the present utility model, as shown in Figure 1, a handle 5 is also provided on the side wall of the compression sleeve 1, and there are multiple handles 5 (2 in Figure 2, and arranged symmetrically left and right), which is convenient Move the tooling. In addition, the handle 5 can also be used as a suspension ring to facilitate the lifting and transportation of the tooling.

As shown in Figure 1, after the installation is in place, the inner ring is in contact with the end of the pipe. If the sealing ring on the side close to the inner ring is not tight and leaks, it is difficult to observe, or the leak is small, and the leaked water cannot flow out in time. Unobservable. In order to solve the above problems, as another improvement of the present utility model, a plurality of small holes (4 in Fig. 2, and arranged symmetrically and evenly on the flange 4) are set on the flange 4 of the pressing sleeve 1, which is convenient for observation The situation in the pipeline to be tested, the leakage at one end will be discovered in time, thereby improving the reliability of the hydraulic test.

Fig. 3 is a side view of a special tooling for socket pressure test according to the embodiment of the present invention. As shown in Figure 3, in order to facilitate the connection between the pipeline to be tested and the special tooling for pressure testing of the socket, one end of the pressure sleeve 1 is designed as a hypotenuse structure 6, and the diameter of the bevel structure gradually increases from the middle of the pressure sleeve 1 to the end. , to achieve a smooth arc transition, and play a guiding role, thereby facilitating the installation of the pipeline to be tested and the compression sleeve 1.

The working principle of the socket pressure test tool is as follows: before the hydraulic test, the sealing ring is installed on the pipe to be tested, and the end of the pipe is two sealing grooves. Then put the pressure sleeve 1 at the end of the pipe, the guiding bevel structure 6 at the end of the pressure sleeve 1 is conducive to the butt joint between the pipe and the pressure sleeve 1, and extend the pipe into the pressure sleeve 1 until the edge 4 between the end of the pipe and the other end of the collar offset. The pressure nozzle 2 is located in the middle of the pressure sleeve 1, corresponding to the sealing structure of the pipe port to be tested. The pressure nozzle 2 should face the position between the two sealing rings. The pressure nozzle 2 can be connected to the external hydraulic machine to perform water injection and pressure test. .

It is easy for those skilled in the art to understand that the above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Improvements and the like should all be included within the protection scope of the present utility model.

Claims (6)

1. a kind of socket pressure testing special tooling, which is characterized in that the special tooling includes suppressing set (1)；

Described one end for suppressing set (1) is equipped with bevel edge structure (6), and the diameter of the bevel edge structure (6) is by the set (1) of suppressing Middle part gradually increases to end, realizes rounding off, and set (1) cooperation installation is suppressed with described convenient for pipeline to be tested；

The other end for suppressing set (1) be equipped with flanging (4), convenient for pipe under test end installation when with the flanging (4) phase It abuts, it is ensured that pipe under test is installed in place；

The inside and outside water injection hole of the medium position setting connection for suppressing set (1), the water injection hole suppress mouth (2) for installing, The mouth (2) of suppressing is connect with hydraulic press, realizes the hydraulic pressure test to pipe under test.

2. a kind of socket pressure testing special tooling according to claim 1, which is characterized in that the mouth (2) of suppressing is set to institute Between the two seals for stating pipe under test end.

3. a kind of socket pressure testing special tooling according to claim 1 or 2, which is characterized in that described to suppress mouth (2) and beat It is detachably connected by bolt realization between pressing sleeve (1).

4. a kind of socket pressure testing special tooling according to claim 1, which is characterized in that the flanging for suppressing set (1) (4) multiple apertures (3) are provided on.

5. a kind of socket pressure testing special tooling according to claim 1 or 4, which is characterized in that described to suppress during set (1) is Idle loop assembling structure, both ends open, diameter can be according to the direct determinations of pipeline to be tested.

6. a kind of socket pressure testing special tooling according to claim 1 or 4, which is characterized in that the side for suppressing set (1) Wall is equipped with handle (5).