Emptying method for hydraulic strength test

Abstract

The invention discloses a hydraulic strength test emptying method which is characterized in that when a strength test is carried out, after water is discharged from equipment, a hollow plastic floating ball is always positioned above the water surface under the action of buoyancy, so that a pipe orifice of a plastic pipe fixed on the hollow plastic floating ball is always positioned above the water surface, and air in the equipment is led out. The device can be placed in any direction, exhaust can be conveniently and easily achieved, the exhaust effect is good, potential safety hazards caused by gas accumulation at the top of a container in the water filling process are avoided, and the pressing time of a hydraulic pressure test is shortened.

Description

Technical Field

[0001] The invention relates to the field of hydraulic testing, and in particular to a hydraulic strength test emptying method. Background Art

[0002] In the chemical and petroleum special equipment industries, the final process of manufacturing special equipment such as large storage, separation, and reaction equipment is often completed by hydraulic testing for strength testing, and airtightness testing is usually completed by airtightness testing. When the equipment is undergoing a hydraulic test, water needs to be filled into the container. At this time, the air inside the container needs to be exhausted. If the gas inside the container cannot be completely exhausted, it will affect the test results of the container strength. For large equipment, due to its large size and heavy weight, it is difficult to change the orientation after manufacturing. Often, there is no venting point for the air in the container during the hydraulic test water filling process, and more gas accumulates on the top of the equipment, resulting in a long pressurization time and a certain safety hazard.

[0003] Therefore, it is necessary to develop a new type of hydraulic strength test emptying method to overcome the above problems. Summary of the invention

[0004] Purpose of the invention: In view of the shortcomings and defects of the prior art, the present invention provides a hydraulic strength test evacuation method. The equipment can be placed in any orientation and can be easily and conveniently ventilated. The venting effect is good, which avoids the safety hazard caused by gas accumulation on the top of the container during the water filling process and shortens the pressure test time of the water pressure test.

[0005] Technical solution: A hydraulic strength test emptying method of the present invention is characterized in that: when conducting a strength test, after the equipment is drained of water, the hollow plastic float is always located above the water surface under the action of buoyancy, so that the mouth of the plastic pipe fixed thereon is always located above the water surface, thereby draining the air in the equipment.

[0006] The hollow plastic float is connected to a plastic tube, and the plastic tube is a fabric-reinforced silicone hose.

[0007] Wherein, the fabric-reinforced silicone hose comprises a silicone layer, and a mesh fabric layer is arranged outside the silicone layer.

[0008] The hollow plastic float is a three-layer hollow structure with two hollow chambers.

[0009] Wherein, a wireless sensor probe is arranged on the top of the hollow plastic float, and the water inlet valve is automatically closed when the water level reaches the set position.

[0010] Wherein, the temperature of the strength test is 5-50 degrees.

[0011] Among them, the plastic pipe is connected to the metal pipe and clamped and fixed by a clamp, and the plastic pipe is connected to the hollow plastic float; the metal pipe is connected to the flange cover, and the connecting flange is connected to the equipment through a connecting pipe; the flange cover is connected to the ball valve.

[0012] The tail end of the plastic tube is connected to the hollow plastic float, and the clamp is set at the connection between the plastic tube and the metal tube.

[0013] Wherein, the metal pipe and the flange cover, and the connecting flange and the connecting pipe are all connected by welding.

[0014] Wherein, the ball valve is installed on the flange cover.

[0015] Beneficial effects: Compared with the prior art, the present invention has the following significant advantages: the device of the present invention can be placed in any orientation, and can be easily and conveniently exhausted, with good exhaust effect, avoiding the potential safety hazard caused by gas accumulation on the top of the container during the water filling process, and shortening the pressure test time of the water pressure test. In addition, the present invention has a simple structure, is safe and easy to operate, is easy to manufacture, and has low cost, and can be applied to water pressure tests of equipment of various specifications. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the present invention;

[0017] Figure 2 It is a structural schematic diagram of the hollow plastic float of the present invention;

[0018] In the figure, 1 is a plastic pipe; 2 is a clamp; 3 is a metal pipe; 4 is a connecting pipe; 5 is a connecting flange; 6 is a flange cover; 7 is a ball valve; 8 is a hollow plastic float; and 9 is equipment. DETAILED DESCRIPTION

[0019] The technical solution of the present invention is further described below in conjunction with the accompanying drawings and specific implementation methods.

[0020] According to the hydraulic strength test emptying method of the present invention, when conducting a strength test, after the equipment 9 is drained of water, the hollow plastic float 8 is always located above the water surface under the action of buoyancy, so that the mouth of the plastic pipe 1 fixed thereon is always located above the water surface, thereby draining the air in the equipment 9.

[0021] The hollow plastic float 8 is connected to the plastic pipe 1, and the plastic pipe 1 is a fabric-reinforced silicone hose with the characteristics of lightness, softness, pressure resistance, high temperature resistance, and torsion resistance. The fabric-reinforced silicone hose includes a silicone layer, and a mesh fabric layer is provided outside the silicone layer. The hollow plastic float 8 is a three-layer hollow structure with two hollow chambers. A wireless sensor probe is provided on the top of the hollow plastic float 8, and the water inlet valve is automatically closed when the water level reaches the set position. The temperature of the strength test is 5-50 degrees.

[0022] The plastic pipe 1 of the present invention is connected to the metal pipe 3 and clamped and fixed by the clamp 2. The plastic pipe 1 is connected to the hollow plastic float 8; the metal pipe 3 is connected to the flange cover 6, and the connecting flange 5 is connected to the equipment 9 through the connecting pipe 4; the flange cover 6 is connected to the ball valve 7.

[0023] The clamp 2 is sleeved at the connection between the plastic pipe 1 and the metal pipe 3. The tail end of the plastic pipe 1 is connected to the hollow plastic float 8. The metal pipe 3 is connected to the flange cover 6 through a welding structure. The connecting flange 5 is connected to the connecting pipe 4 through a welding structure. The ball valve 7 is installed on the flange cover 6 to control the air discharge.

[0024] The device of the present invention can be placed in any orientation, and can be easily and conveniently ventilated, with good venting effect, avoiding the potential safety hazard caused by gas accumulation on the top of the container during the water filling process, and shortening the pressure test time of the water pressure test. In addition, the present invention has a simple structure, is safe and easy to operate, is easy to manufacture, and has low cost, and is suitable for water pressure tests of equipment of various specifications.

Claims

1. A method for emptying a hydraulic strength test, characterized in that: When conducting a strength test, after the device (9) is drained of water, the hollow plastic float (8) is always located above the water surface due to the buoyancy, so that the mouth of the plastic pipe (1) fixed thereon is always located above the water surface, thereby leading the air in the device (9) out.

2. The method for emptying the hydraulic strength test according to claim 1, characterized in that: The hollow plastic float (8) is connected to the plastic pipe (1), and the plastic pipe (1) is a fabric-reinforced silicone hose.

3. The method for emptying the hydraulic strength test according to claim 2, characterized in that: The fabric-reinforced silicone hose comprises a silicone layer, and a mesh fabric layer is arranged outside the silicone layer.

4. The method for emptying the hydraulic strength test according to claim 1, characterized in that: The hollow plastic float (8) is a three-layer hollow structure and is provided with two hollow chambers.

5. The method for emptying the hydraulic strength test according to claim 1, characterized in that: A wireless sensor probe is arranged on the top of the hollow plastic float (8), and the water inlet valve is automatically closed when the water level reaches a set position.

6. The method for emptying the hydraulic strength test according to claim 1, characterized in that: The temperature of the strength test is 5-50 degrees.

7. The method for emptying the hydraulic strength test according to claim 1, characterized in that: The plastic pipe (1) is connected to the metal pipe (3) and is clamped and fixed by a clamp (2); the plastic pipe (1) is connected to the hollow plastic float (8); the metal pipe (3) is connected to the flange cover (6); the connecting flange (5) is connected to the equipment (9) through the connecting pipe (4); the flange cover (6) is connected to the ball valve (7).

8. The method for emptying the hydraulic strength test according to claim 7, characterized in that: The tail end of the plastic pipe (1) is connected to the hollow plastic float (8), and the clamp (2) is sleeved at the connection between the plastic pipe (1) and the metal pipe (3).

9. The method for emptying the hydraulic strength test according to claim 7, characterized in that: The metal pipe (3) and the flange cover (6), as well as the connecting flange (5) and the connecting pipe (4) are connected by welding.

10. The method for emptying the hydraulic strength test according to claim 7, characterized in that: The ball valve (7) is installed on the flange cover (6).

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