Pressure test platform for preventing deformation of valve

Abstract

The utility model relates to the technical field of special pressure test platforms for valves, in particular to a pressure test platform for preventing deformation of a valve, which is more accurate in sealing test result of a hard-sealed valve and does not cause deformation and damage of the valve. Comprising a pressure test platform and a pressure plate, the pressure test platform is provided with a fixing hole, and the pressure plate is in threaded connection with the fixing hole.

Description

Technical Field

[0001] The utility model relates to the technical field of a special pressure testing platform for valves, in particular to a pressure testing platform for preventing valve deformation. Background Art

[0002] After the valve is assembled and before it leaves the factory, it needs to be tested for sealing. This needs to be done on a dedicated pressure test machine. Conventional pressure test machines fix the valve by pressing the upper and lower sides of the valve.

[0003] Existing pressure testing machines easily cause deformation of the valve, which in turn affects the deformation of the sealing surface fit, affecting the pressure test results and valve performance. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a pressure test platform for preventing valve deformation, which can make the test results of the sealing performance of hard-sealed valves more accurate and will not cause valve deformation and damage.

[0005] The utility model discloses a pressure testing platform for preventing valve deformation, comprising a pressure testing platform and a pressure plate, wherein the pressure testing platform is provided with a fixing hole, and the pressure plate is threadedly connected to the fixing hole; the valve to be tested for sealing is placed on the pressure testing platform, the pressure plate presses the flange at the lower end of the valve, bolts pass through the pressure plate and the fixing hole, and nuts are used to adjust the tightness, so that the sealing structure and the force required for sealing during the test are limited to the flange part, thereby reducing the pressure on the entire valve body, reducing unnecessary deformation of the valve body during the sealing test, and being closer to actual usage, so the effect is good.

[0006] Preferably, the pressure test platform includes a bracket, a water inlet pipe, a water outlet pipe and a base. The pressure test platform is provided with an annular groove, a sealing ring is embedded in the annular groove, the upper surface of the bracket is connected to the lower surface of the base, and the water inlet pipe and the water outlet pipe are symmetrically installed inside the base; the sealing ring is placed in the annular groove, and the valve to be tested for sealing is placed at the center of the pressure test platform. The pressure plate presses the lower flange of the valve to form a sealed state. The valve is opened, water is introduced from the water inlet pipe, the inner cavity of the valve is filled with water and the air is exhausted, and then the valve is closed. The pressure test is carried out according to the pressure test standard. After the pressure test is completed, the water is discharged from the water outlet pipe.

[0007] Preferably, the pressure test platform is a circular platform; through the above arrangement, when the pressure test platform is subjected to pressure, the force distribution is more uniform, thereby improving its safety performance.

[0008] Preferably, a plurality of fixing holes are provided and threads are provided inside the fixing holes; through the above arrangement, the valve to be tested can be conveniently fixed.

[0009] Preferably, the sealing ring is provided with a reinforced square tube, and the threaded hole is avoided when being welded to the base; through the above arrangement, the bearing capacity and protective performance of the bracket are enhanced, and at the same time, the fixation of the valve to be tested is not affected.

[0010] Compared with the prior art, the beneficial effects of the utility model are as follows: the valve to be tested for sealing is placed on a pressure test platform, the pressure plate presses the flange at the lower end of the valve, the bolts pass through the pressure plate and the fixing holes, and the nuts are used to adjust the tightness. The sealing structure and the force required for sealing during the test are limited to the flange part, thereby reducing the pressure on the entire valve body and reducing unnecessary deformation of the valve body during the sealing test. This is closer to actual usage and therefore has a good effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of the utility model;

[0012] Figure 2 yes Figure 1 A partial enlarged structural diagram of the middle part;

[0013] Figure 3 This is the top view of the pressure test platform;

[0014] Figure 4 This is the left view of the pressure test platform;

[0015] Figure 5 It is a structural diagram of a conventional pressure testing machine.

[0016] Markings in the attached figure: 01, pressure test platform; 02, pressure plate; 03, fixing hole; 04, sealing ring; 05, bracket; 06, water inlet pipe; 07, water outlet pipe; 08, base; 09, ring groove; 10, lower pressure plate; 11, valve to be tested; 12, upper pressure plate. DETAILED DESCRIPTION

[0017] In order to facilitate the understanding of the utility model, the utility model will be described more comprehensively below with reference to the relevant drawings. The utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive.

[0018] like Figure 5 As shown, a conventional pressure test machine fixes the valve to be tested by an upper pressure plate and a lower pressure plate. The valve is opened to allow water to flow in from the upper side. After the valve is filled with water and exhausted, the valve is closed and the pressure test is performed according to the pressure test standard. After the pressure test is completed, the water is discharged from the lower side.

[0019] The utility model provides a pressure test platform for preventing valve deformation, comprising a pressure test platform 01 and a pressure plate 02, wherein the pressure test platform 01 is provided with a fixing hole 03, and the pressure plate 02 is threadedly connected to the fixing hole 03; the pressure test platform 01 comprises a bracket 05, a water inlet pipe 06, a water outlet pipe 07 and a base 08, the pressure test platform 01 is provided with an annular groove 09, a sealing ring 04 is embedded in the annular groove 09, the upper surface of the bracket 05 is connected to the lower surface of the base 08, the water inlet pipe 06 and the water outlet pipe 07 are symmetrically installed inside the base 08; the pressure test platform 01 is a circular platform; a plurality of fixing holes 03 are provided and threads are provided inside the fixing holes 03; the sealing ring 04 is provided with a reinforced square tube, and avoids the threaded holes when being welded to the base 08.

[0020] like Figures 1 to 5 As shown, the utility model is a pressure test platform for preventing valve deformation. When it is working, the valve to be tested for sealing is placed on the pressure test platform 01, the pressure plate 02 presses the flange at the lower end of the valve, the bolts pass through the pressure plate 02 and the fixing holes 03, and the nuts are used to adjust the tightness. The sealing structure and the force required for sealing during the period are limited to the flange part, the sealing ring 04 is placed in the ring groove 09, the valve to be tested for sealing is placed at the center of the pressure test platform 01, the pressure plate 02 presses the flange at the lower end of the valve to form a sealed state, the valve is opened, water is introduced from the water inlet pipe 06, the valve cavity is filled with water and the air is exhausted, and then the valve is closed, and the pressure test is performed according to the pressure test standard. After the pressure test is completed, the water is discharged from the water outlet pipe 07.

[0021] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A pressure test platform for preventing valve deformation, characterized in that: The pressure test platform (01) comprises a pressure test platform (01) and a pressure plate (02). The pressure test platform (01) is provided with a fixing hole (03), and the pressure plate (02) is threadedly connected to the fixing hole (03). The pressure test platform (01) comprises a bracket (05), a water inlet pipe (06), a water outlet pipe (07) and a base (08). The pressure test platform (01) is provided with an annular groove (09), and a sealing ring (04) is embedded in the annular groove (09). The upper surface of the bracket (05) is connected to the lower surface of the base (08), and the water inlet pipe (06) and the water outlet pipe (07) are symmetrically installed inside the base (08).

2. A pressure testing platform for preventing valve deformation as claimed in claim 1, characterized in that: The pressure test platform (01) is a circular platform.

3. A pressure testing platform for preventing valve deformation as claimed in claim 2, characterized in that: A plurality of fixing holes (03) are provided and threads are provided inside the fixing holes (03).

4. A pressure testing platform for preventing valve deformation as claimed in claim 3, characterized in that: The sealing ring (04) is provided with a reinforced square tube, and the threaded hole is avoided when welding with the base (08).

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