Blasting test bed

Abstract

The utility model discloses a blasting test bench, which relates to the technical field of test equipment and comprises an equipment shell, a detection space and a control space are arranged on the equipment shell, and a rear cover and a detection component are detachably mounted on the equipment shell. Comprising an anti-explosion housing installed in a detection space, a sample piece installation plate installed in the anti-explosion housing, a high-pressure oil pipe assembly installed in the detection space and a gas-liquid booster pump installed in a control space. According to the utility model, the design structure is reasonable, the pressure regulating assembly and the liquid feeding assembly can be automatically or manually controlled through the control assembly, the pressure regulating assembly is used for accurately regulating the air pressure conveyed into the gas-liquid booster pump, and then the liquid feeding assembly is used for conveying filtered liquid into the gas-liquid booster pump; the gas-liquid booster pump can automatically or manually adjust the pressure of liquid accurately, the skill requirement of operators is lowered, the pressure deviation during workpiece testing is reduced, and the accuracy of a detection result is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of experimental equipment, in particular to a blasting test bench. Background Art

[0002] The burst test bench is a device used to continuously apply pressure through liquid or air on the surface of a certain specification of polymer sheet (such as film, leather, etc.) or the inner surface of a pipe or container to test the maximum pressure when the sample suddenly breaks, so as to obtain the burst strength of the material.

[0003] Traditional explosion test benches often require complex mechanical or hydraulic systems when adjusting pressure, which not only increases the complexity of the equipment, but also makes it difficult to accurately control the pressure. In addition, due to the need for fine pressure control, any slight deviation may lead to inaccurate test results or test failure, which requires extremely high skills from the operator. To this end, we provide a burst test bench to solve the above problems. Utility Model Content

[0004] 1) Technical issues solved

[0005] The purpose of the utility model is to make up for the deficiencies of the prior art and to provide a blasting test bench.

[0006] 2) Technical solution

[0007] To achieve the above purpose, the utility model provides the following technical solutions: a blasting test bench, comprising:

[0008] The device housing is provided with a detection space and a control space, and a back cover is detachably mounted on the device housing.

[0009] The detection component includes an explosion-proof cover installed in the detection space, a sample mounting plate installed in the explosion-proof cover, a high-pressure oil pipe assembly installed in the detection space, and a gas-liquid booster pump installed in the control space, wherein the output end of the gas-liquid booster pump is connected to the high-pressure oil pipe assembly.

[0010] The boosting component comprises a pressure regulating component for adjusting the air pressure in the gas-liquid boosting pump and a liquid conveying component for conveying liquid in the gas-liquid boosting pump.

[0011] The collecting component is arranged in the device housing and is used for collecting the liquid after the test.

[0012] The control component is arranged on the equipment housing and is used for automatic and manual control of the boosting component.

[0013] Furthermore, the pressure regulating assembly includes an air-liquid booster pump, an air two-piece, a pressure regulating valve and a pressure relief valve. The air two-piece is connected to the pressure regulating valve through an air pipe, and the air-liquid booster pump is connected to the pressure regulating valve and the sample mounting plate through an air pipe.

[0014] Furthermore, the liquid delivery component includes a liquid tank and a self-priming pump installed on the liquid tank. An oil filter is installed at the input end of the self-priming pump. The end of the oil filter away from the self-priming pump is connected to the liquid tank through an oil pipe. An output end of the self-priming pump is connected to the input end of the gas-liquid booster pump through an oil pipe and a one-way valve.

[0015] Furthermore, the collection assembly includes an explosion-proof box joint fixedly connected to the explosion-proof cover, and one end of the explosion-proof box joint away from the explosion-proof cover is fixedly connected to the liquid tank through an oil pipe.

[0016] Furthermore, a take-out port and an inspection port are provided on the device housing, a first explosion-proof door is hinged on the take-out port, and a second explosion-proof door is hinged on the inspection port.

[0017] Furthermore, an oil receiving pan is placed on the inner bottom wall of the equipment housing, and the explosion-proof box joint is located directly above the oil receiving pan.

[0018] Furthermore, the control component includes a display screen, an industrial computer, a driving air pressure gauge, a digital hydraulic pressure gauge, a high-pressure pressure gauge, a water pump switch, an automatic switch, and a manual switch, and the water pump switch is electrically connected to the self-priming pump.

[0019] Furthermore, the control component also includes an electromagnetic overflow valve, an electro-hydraulic proportional valve, a transfer valve block, an oil-water separator, a pressure transmitter and an electromagnetic reversing valve. The oil-water separator is installed on the electromagnetic reversing valve, and the other delivery end of the self-priming pump is connected to the electromagnetic overflow valve, the electro-hydraulic proportional valve, the transfer valve block and the pressure transmitter through a one-way valve and an oil pipe.

[0020] 3) Beneficial effects:

[0021] Compared with the existing technology, the blasting test bench has the following beneficial effects:

[0022] The utility model realizes the coordinated arrangement among the gas-liquid booster pump, the pressure regulating component, the liquid delivery component and the control component. The control component can automatically or manually control the pressure regulating component and the liquid delivery component, and utilizes the pressure regulating component to accurately adjust the gas pressure delivered to the gas-liquid booster pump. The liquid delivery component is then utilized to deliver filtered liquid in the gas-liquid booster pump, so that the gas-liquid booster pump can automatically or manually accurately regulate the pressure of the liquid, thereby reducing the skill requirements for the operator, reducing the deviation of the pressure during the workpiece test, and improving the accuracy of the test result. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a three-dimensional diagram of the utility model;

[0024] Figure 2 This is a back view of the utility model with the rear cover removed.

[0025] In the figure: 1. Equipment casing; 2. Explosion-proof cover; 3. Sample mounting plate; 4. High-pressure oil pipe assembly; 5. First explosion-proof door; 6. Display screen; 7. Inspection port; 8. Second explosion-proof door; 9. Industrial computer; 10. Oil receiving tray; 11. Self-priming pump; 12. Gas-liquid booster pump; 13. Liquid tank; 14. Oil filter; 15. Explosion-proof box connector; 16. Solenoid overflow valve; 17. Electro-hydraulic proportional valve; 18. Adapter valve block; 19. Oil-water separator; 20. Pressure transmitter; 21. Solenoid reversing valve; 22. Back cover; 23. Pressure regulating valve; 24. Drive air pressure gauge; 25. Digital hydraulic gauge; 26. High-pressure pressure gauge; 27. Water pump switch; 28. Pressure relief valve; 29. ​​Access port. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] like Figure 1-2 As shown, the utility model provides a technical solution: a blasting test bench, comprising an equipment housing 1, a detection component, a pressurization component, a collection component and a control component.

[0028] A detection space and a control space are provided on the device housing 1 , and a back cover 22 is detachably mounted on the device housing 1 .

[0029] The detection components include an explosion-proof cover 2 installed in the detection space, a sample mounting plate 3 installed in the explosion-proof cover 2, a high-pressure oil pipe assembly 4 installed in the detection space, and an air-liquid booster pump 12 installed in the control space, and the output end of the air-liquid booster pump 12 is connected to the high-pressure oil pipe assembly 4.

[0030] The gas-liquid booster pump 12 adopts the working principle of Pascal, that is, a large area pushes a small area, and the ratio of the driving gas pressure to the pressure of the boosted medium is formed by the ratio of the driving gas working area to the area of ​​the boosted medium cylinder. The larger the area ratio, the greater the pressure formed, and the driving cylinder area × driving pressure = boosted cylinder area × boosted medium pressure.

[0031] The workpiece can be placed in the sample mounting plate 3 and connected to the workpiece through the high-pressure oil pipe assembly 4, and the workpiece is tested in the explosion-proof cover 2. The high-pressure oil pipe assembly 4 provides oil inlet and outlet pipes and joints for the test piece.

[0032] The boosting component includes a pressure regulating component for adjusting the air pressure in the gas-liquid boosting pump 12 and a liquid delivery component for delivering liquid in the gas-liquid boosting pump 12 .

[0033] The pressure regulating assembly includes an air-liquid booster pump 12, an air two-piece, a pressure regulating valve 23 and a pressure relief valve 28. The air two-piece is connected to the pressure regulating valve 23 through an air pipe, and the air-liquid booster pump 12 is connected to the pressure regulating valve 23 and the sample mounting plate 3 through an air pipe.

[0034] The external gas is connected to the air two-piece through a joint, the air two-piece is used to filter the gas, and the gas pressure is adjusted by the pressure regulating valve 23, and the pressure relief valve 28 can release the pressure in a manual state, thereby reducing the air pressure.

[0035] The liquid delivery component includes a liquid tank 13 and a self-priming pump 11 installed on the liquid tank 13. An oil filter 14 is installed at the input end of the self-priming pump 11. The end of the oil filter 14 away from the self-priming pump 11 is connected to the liquid tank 13 through an oil pipe. An output end of the self-priming pump 11 is connected to the input end of the gas-liquid booster pump 12 through an oil pipe and a one-way valve.

[0036] The self-priming pump 11 can extract the liquid in the liquid tank 13 and transport it to the oil filter 14 for filtering, so as to prevent the impurities in the liquid from affecting the accuracy of the detection result.

[0037] The collecting component is arranged in the equipment housing 1, and is used to collect the liquid after the test. The collecting component includes an explosion-proof box joint 15 fixedly connected to the explosion-proof cover 2. The end of the explosion-proof box joint 15 away from the explosion-proof cover 2 is fixedly connected to the liquid tank 13 through an oil pipe. The explosion-proof box joint 15 can centrally collect the waste liquid generated after the detection in the explosion-proof cover 2, and these liquids can be returned to the liquid tank 13 through the explosion-proof box joint 15 for reuse.

[0038] The equipment housing 1 is provided with a take-out port 29 and an inspection port 7. The take-out port 29 is hinged with a first explosion-proof door 5, which can close the opening of the explosion-proof cover 2 to prevent the detection workpiece or liquid from splashing out of the explosion-proof cover 2. The inspection port 7 is hinged with a second explosion-proof door 8. An oil receiving pan 10 is placed on the inner bottom wall of the equipment housing 1, and the explosion-proof box joint 15 is located directly above the oil receiving pan 10.

[0039] The control component is arranged on the equipment housing 1, and is used for automatic and manual control of the boosting component. The control component includes a display screen 6, an industrial computer 9, a driving air pressure gauge 24, a digital hydraulic gauge 25, a high-pressure pressure gauge 26, a water pump switch 27, an automatic switch, and a manual switch. The water pump switch 27 is electrically connected to the self-priming pump 11. The display screen 6 can digitally display the program in the industrial computer 9, and the digital hydraulic gauge 25 can digitally display the liquid pressure. The value is accurate to two decimal places. The opening and closing of the self-priming pump 11 can be controlled by the water pump switch 27, and the driving air pressure gauge 24 is used to monitor the air pressure of the external gas entering the equipment.

[0040] The control assembly also includes an electromagnetic overflow valve 16, an electro-hydraulic proportional valve 17, a transfer valve block 18, an oil-water separator 19, a pressure transmitter 20 and an electromagnetic reversing valve 21. The oil-water separator 19 is installed on the electromagnetic reversing valve 21. The other delivery end of the self-priming pump 11 is connected to the electromagnetic overflow valve 16, the electro-hydraulic proportional valve 17, the transfer valve block 18 and the pressure transmitter 20 through a one-way valve and an oil pipe.

[0041] The electromagnetic relief valve 16 is used to control the hydraulic pressure in the pipeline to the set pressure under automatic control. When the hydraulic pressure exceeds the set value, it can start to discharge the excess hydraulic pressure. The electro-hydraulic proportional valve 17 is used to accurately control the proportional relationship between the electrical signal and the hydraulic pressure under automatic operation to ensure the stability of the test pressure. The adapter valve block 18 is used to connect the pipelines of multiple components in the hydraulic system. The oil-water separator 19 is used to filter the gas in the air pipe, remove the water and oil in the pipeline, and ensure the purity of the incoming gas. The pressure transmitter 20 is used to maintain the balance of the pipeline hydraulic pressure. The electromagnetic reversing valve 21 is used to switch the inlet and outlet gas direction.

[0042] Working principle: Pneumatic part: After the external gas passes through the air two-piece to filter out impurities in the gas, it enters the pressure regulating valve 23 to adjust the gas pressure, and then drives the air pressure gauge 24 to observe the current gas pressure. If it is automatic control, turn on the automatic switch, and the gas enters the inspection port 7 to control the proportional control of the electrical signal and the gas pressure; if it is manual debugging, turn off the automatic switch, turn on the manual switch, and the gas directly enters the gas-liquid booster pump 12 to control the system liquid pressure.

[0043] Hydraulic part: The liquid is transported from the liquid tank 13 to the oil filter 14 through the self-priming pump 11 for filtration and then transported to the gas-liquid booster pump 12. The liquid enters the inner cavity of the gas-liquid booster pump 12 through a one-way valve on one side for pressurization, and passes through a one-way valve on the other side through a digital hydraulic gauge 25 and a high-pressure pressure gauge 26 for liquid pressure detection. At the same time, the detected liquid pressure is fed back to the industrial computer 9, and its pressure is adjusted using the hydraulic program in the industrial computer 9.

[0044] It should be noted that, in this article, the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model; the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the terms "fixed", "installed", "connected", and "connected" should be understood in a broad sense. For example, "installed" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a mechanical connection or an electrical connection; "connected" can be a direct connection, an indirect connection through an intermediate medium, or a connection between the two elements. For ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood according to specific circumstances.

[0045] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A blasting test bench, characterized in that: include: A device housing (1), wherein a detection space and a control space are provided on the device housing (1), and a back cover (22) is detachably mounted on the device housing (1); The detection component comprises an explosion-proof housing (2) installed in the detection space, a sample mounting plate (3) installed in the explosion-proof housing (2), a high-pressure oil pipe assembly (4) installed in the detection space, and a gas-liquid booster pump (12) installed in the control space, wherein the output end of the gas-liquid booster pump (12) is connected to the high-pressure oil pipe assembly (4); The boosting component comprises a pressure regulating component for adjusting the gas pressure in the gas-liquid boosting pump (12) and a liquid delivery component for delivering liquid in the gas-liquid boosting pump (12); A collection component, arranged in the device housing (1), for collecting the liquid after the test; The control component is arranged on the device housing (1) and is used for automatically and manually controlling the boosting component.

2. A blasting test bench according to claim 1, characterized in that: The pressure regulating assembly comprises an air-liquid booster pump (12), an air two-piece, a pressure regulating valve (23) and a pressure relief valve (28); the air two-piece is connected to the pressure regulating valve (23) via an air pipe; the air-liquid booster pump (12) is connected to the pressure regulating valve (23) and the sample mounting plate (3) via an air pipe.

3. The explosion test bench according to claim 1, characterized in that: The liquid delivery assembly comprises a liquid tank (13), a self-priming pump (11) mounted on the liquid tank (13), an oil filter (14) being mounted on the input end of the self-priming pump (11), an end of the oil filter (14) away from the self-priming pump (11) being connected to the liquid tank (13) via an oil pipe, and an output end of the self-priming pump (11) being connected to the input end of the gas-liquid booster pump (12) via an oil pipe and a one-way valve.

4. The explosion test bench according to claim 3, characterized in that: The collection assembly comprises an explosion-proof box joint (15) fixedly connected to the explosion-proof housing (2); one end of the explosion-proof box joint (15) away from the explosion-proof housing (2) is fixedly connected to the liquid tank (13) via an oil pipe.

5. The explosion test bench according to claim 1, characterized in that: The equipment housing (1) is provided with a take-in / take-out port (29) and an inspection port (7); the take-in / take-out port (29) is hingedly connected to a first explosion-proof door (5); and the inspection port (7) is hingedly connected to a second explosion-proof door (8).

6. The explosion test bench according to claim 4, characterized in that: An oil receiving pan (10) is placed on the inner bottom wall of the equipment housing (1), and the explosion-proof box joint (15) is located directly above the oil receiving pan (10).

7. The explosion test bench according to claim 3, characterized in that: The control assembly comprises a display screen (6), an industrial computer (9), a driving air pressure gauge (24), a digital hydraulic pressure gauge (25), a high-pressure pressure gauge (26), a water pump switch (27), an automatic switch, and a manual switch. The water pump switch (27) is electrically connected to the self-priming pump (11).

8. The explosion test bench according to claim 7, characterized in that: The control assembly further comprises an electromagnetic overflow valve (16), an electro-hydraulic proportional valve (17), a switching valve block (18), an oil-water separator (19), a pressure transmitter (20) and an electromagnetic reversing valve (21); the oil-water separator (19) is mounted on the electromagnetic reversing valve (21); and the other delivery end of the self-priming pump (11) is connected to the electromagnetic overflow valve (16), the electro-hydraulic proportional valve (17), the switching valve block (18) and the pressure transmitter (20) via a one-way valve and an oil pipe.

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