Novel submersible valve test bench

Abstract

The invention discloses a novel submersible valve test bench, and relates to the technical field of valve test benches, the novel submersible valve test bench comprises a water tank, a workbench and a pressure gauge, the top of the water tank is connected with the workbench, and the front part of the workbench is provided with the pressure gauge. According to the novel diving valve test bench, the water inlet valve can be opened firstly to fill the water tank with water, one side of the movable blind plate can abut against the other end of the valve to be detected, the movable blind plate and the fixed blind plate can abut against the valve to be detected at the moment, then the water inlet valve is opened, then the exhaust ball valve is opened to submerge the valve, and when water emerges from the exhaust pipe, the valve is closed. If no air exists in the water tank and the water tank, compressed air is filled into the valve, whether the valve leaks or not can be judged by observing whether bubbles emerge from water or not, and the operation mode is not prone to oil leakage, so that workers can observe bubble emerging conveniently, the accuracy of valve external leakage detection can be improved, and the working efficiency is improved. And meanwhile, the working table can be used for double-station valve external leakage detection.

Description

Technical Field

[0001] The invention relates to the technical field of valve test benches, in particular to a novel submersible valve test bench. Background Art

[0002] Valves are pipeline accessories used to open and close pipelines, control flow direction, and adjust and control the parameters of the conveying medium (such as temperature, pressure and flow). Valves have functions such as shut-off, regulation, diversion, prevention of backflow, pressure stabilization, diversion or overflow pressure relief.

[0003] In the prior art, valves are an important branch of general mechanical products with unique functions. They play an important role in controlling the on-off and flow rate of working media in a wide range of fluid engineering pipelines. The external leakage of valves is an important indicator of valve quality. When testing valve external leakage, diving test is a common method. During the test, the valve is submerged in water, compressed air is filled into the valve cavity, and whether the valve has external leakage is determined by observing whether bubbles emerge. Traditional testing equipment uses a lifting cylinder to submerge the test equipment together with the valve into water. During the lifting process of the lifting cylinder, the piston rod will have a slight oil-carrying phenomenon. At the same time, the cylinder or hydraulic motor of the clamping mechanism will also have a small amount of oil leakage during work. In this way, the hydraulic oil flows into the water tank, causing pollution of the water in the water tank. The hydraulic oil will float on the water surface, and the valve will adhere to the surface of the valve after it comes out of the water. It is also not conducive to observing the emergence of bubbles. Summary of the invention

[0004] The purpose of the present invention is to provide a novel submersible valve test bench to solve the problem raised in the above background technology that the valve test benches currently on the market are not conducive to observing the emergence of bubbles.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a new type of submersible valve test bench, comprising: a water tank, a workbench and a pressure gauge, the top of the water tank is connected to the workbench, the front of the workbench is equipped with a pressure gauge, the outside of the workbench is equipped with a water inlet valve, the front of the water tank is equipped with a drain valve, the inside of the water tank is equipped with water filling and discharging pipes, the outside of the workbench away from the water inlet valve is respectively equipped with an air source two-piece and a first position control valve, a partition is installed on the inside of the workbench, a second position control valve is installed on the surface of the partition, and a pull rod and a fixed blind plate are respectively installed on the inside of the workbench.

[0006] Preferably, a first station oil cylinder and a second station oil cylinder are respectively installed on the back of the workbench, and the output ends of the first station oil cylinder and the second station oil cylinder are connected to movable blind plates. An exhaust pipe is installed on the back of the water tank, and an exhaust ball valve is installed at the end of the exhaust pipe.

[0007] Preferably, the workbench has a water tank inside, and the water tank is connected to the top of the water filling and discharging pipeline.

[0008] Preferably, two groups of fixed blind plates are symmetrically arranged about the center of the workbench.

[0009] Preferably, the pull rod is made of stainless steel.

[0010] Compared with the prior art, the beneficial effects of the present invention are as follows: the new submersible valve test bench can first open the water inlet valve to fill the water tank with water, the first station control valve can control the output end of the first station oil cylinder to move forward, and when the first station oil cylinder is in operation, it can drive the movable blind plate at its end to move, and when the movable blind plate moves to the specified position, one side of the movable blind plate can be against the other end of the valve to be tested, at this time, the movable blind plate and the fixed blind plate can be pressed against the valve to be tested, and the pull rod can provide a tightening reaction force, the pressure gauge is the cylinder pressure of the first station oil cylinder and the second station oil cylinder, and then open the water inlet valve, and then open the exhaust ball valve to submerge the valve with water, when water emerges in the exhaust pipe, it means that there is no air in the water tank and the water tank, and then fill the valve with compressed air, and by observing whether there are bubbles emerging in the water, it can be judged whether the valve has external leakage, and this operation mode is not prone to oil leakage, so that it is convenient for the staff to observe the emergence of bubbles, and the accuracy of valve external leakage detection can be improved. At the same time, the workbench can perform double-station valve external leakage detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the main structure of the present invention;

[0012] Figure 2 It is a schematic diagram of the cutaway structure of the workbench of the present invention from the left side;

[0013] Figure 3 It is a schematic diagram of the top structure of the present invention.

[0014] In the figure: 1. water tank; 2. workbench; 3. pressure gauge; 4. water inlet valve; 5. drain valve; 6. water charging and discharging pipes; 7. air source two-piece; 8. first station control valve; 9. partition; 10. second station control valve; 11. pull rod; 12. fixed blind plate; 13. first station oil cylinder; 14. second station oil cylinder; 15. movable blind plate; 16. exhaust pipe; 17. exhaust ball valve. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0016] See also Figure 1-Figure 3 It can be seen that the present invention provides a technical solution: a new type of submersible valve test bench, comprising: a water tank 1, a workbench 2 and a pressure gauge 3, the top of the water tank 1 is connected to the workbench 2, the front of the workbench 2 is equipped with a pressure gauge 3, the outside of the workbench 2 is equipped with a water inlet valve 4, the front of the water tank 1 is equipped with a drain valve 5, the inside of the water tank 1 is equipped with a water filling and discharging pipe 6, the outside of the workbench 2 away from the water inlet valve 4 is respectively equipped with an air source two-piece 7 and a first position control valve 8, a partition 9 is installed on the inside of the workbench 2, and a second position control valve 10 is installed on the surface of the partition 9. A pull rod 11 and a fixed blind plate 12 are respectively installed on the inner side of the workbench 2, and a first-station oil cylinder 13 and a second-station oil cylinder 14 are respectively installed on the back of the workbench 2. The output ends of the first-station oil cylinder 13 and the second-station oil cylinder 14 are connected with a movable blind plate 15. An exhaust pipe 16 is installed on the back of the water tank 1, and an exhaust ball valve 17 is installed at the end of the exhaust pipe 16. The inside of the workbench 2 is a water tank, which is connected to the top of the water filling and discharging pipe 6. Two groups of fixed blind plates 12 are symmetrically arranged about the center of the workbench 2. The pull rod 11 is made of stainless steel, and the exhaust pipe 16 is L-shaped.

[0017] In specific implementation, when conducting valve external leakage detection, oil leakage is prone to occur inside the traditional valve test bench, which is not conducive to observing the emergence of bubbles, resulting in the accuracy of valve external leakage detection being not high enough. The water inlet valve 4 can be opened first to fill the water tank 1 with water, and the valve to be tested can be placed inside the workbench 2 near the first workstation control valve 8, and then one end of the valve can be connected to the fixed blind plate 12 near the first workstation control valve 8. At this time, the first workstation control valve 8 can be started, and the first workstation control valve 8 can control the first workstation The output end of the cylinder 13 moves forward. When the first-station cylinder 13 is running, it can drive the movable blind plate 15 at its end to move. When the movable blind plate 15 moves to the specified position, one side of the movable blind plate 15 can be against the other end of the valve to be tested. At this time, the movable blind plate 15 and the fixed blind plate 12 can press the valve to be tested, and the pull rod 11 can provide a tightening reaction force. The pressure gauge 3 is the cylinder pressure of the first-station cylinder 13 and the second-station cylinder 14. Then open the water inlet valve 4, and then open the exhaust ball valve 17 to submerge the valve with water.

[0018] See also Figure 1-Figure 3 It can be seen that when water comes out of the exhaust pipe 16, it means that there is no air in the water tank 1 and the water tank. Then compressed air is filled into the valve. By observing whether there are bubbles in the water, it can be determined whether the valve has external leakage. This operation method is not prone to oil leakage, which makes it convenient for staff to observe the bubbles coming out. The accuracy of valve external leakage detection can be improved. At the same time, the workbench 2 can perform double-position valve external leakage detection.

[0019] To sum up, when using the new submersible valve test bench, you can first open the water inlet valve 4 to fill the water tank 1 with water, and place the valve to be tested on the workbench 2 near the first position control valve 8, and then connect one end of the valve to the fixed blind plate 12 near the first position control valve 8. By observing whether there are bubbles in the water, it can be determined whether the valve has external leakage, and this operation method is not prone to oil leakage, which makes it convenient for staff to observe the bubbles, and can improve the accuracy of valve external leakage detection. At the same time, the workbench 2 can perform double-position valve external leakage detection. The content not described in detail in this description belongs to the existing technology known to professional and technical personnel in this field.

[0020] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A new type of submersible valve test bench, including: The water tank (1), the workbench (2) and the pressure gauge (3) are characterized by: The top of the water tank (1) is connected to a workbench (2), and a pressure gauge (3) is installed at the front of the workbench (2); A water inlet valve (4) is installed on the outside of the workbench (2), a drain valve (5) is installed on the front of the water tank (1), a water filling and discharging pipe (6) is installed inside the water tank (1), an air source two-piece (7) and a first position control valve (8) are installed on the outside of the workbench (2) away from the water inlet valve (4), a partition (9) is installed on the inside of the workbench (2), a second position control valve (10) is installed on the surface of the partition (9), and a pull rod (11) and a fixed blind plate (12) are installed on the inside of the workbench (2).

2. A new type of submersible valve test bench according to claim 1, characterized in that: A first working position oil cylinder (13) and a second working position oil cylinder (14) are respectively installed on the back of the workbench (2), and the output ends of the first working position oil cylinder (13) and the second working position oil cylinder (14) are both connected to a movable blind plate (15). An exhaust pipe (16) is installed on the back of the water tank (1), and an exhaust ball valve (17) is installed at the end of the exhaust pipe (16).

3. A new type of submersible valve test bench according to claim 2, characterized in that: The workbench (2) has a water tank inside, and the water tank is connected to the top of the water filling and discharging pipeline (6).

4. A new type of submersible valve test bench according to claim 3, characterized in that: The fixed blind plates (12) are arranged in two groups symmetrically about the center of the workbench (2).

5. A new type of submersible valve test bench according to claim 1, characterized in that: The pull rod (11) is made of stainless steel.

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