Device for measuring relationship between compression amount of filter spring and gas pressure

Abstract

The utility model discloses a device for measuring the relationship between the compression amount of a filter spring and the gas pressure, which comprises a machine body, a barrel body arranged in the machine body and a spring arranged in the barrel body, and is characterized in that a piston is arranged in the barrel body in a sliding manner, and the upper end of the machine body is communicated with a gas outlet valve and a gas inlet valve; a pressure gauge is arranged on one side of the air inlet valve in a communicating mode, scale marks are arranged on the barrel, the pressure of air introduced into the barrel is changed through the opening degree of the air inlet valve and the opening degree of the air outlet valve, the air pushes the piston to compress the spring, and the compression amount of the spring is fed back through the scale marks. According to the device, the first seat body, the barrel body, the second seat body, the piston and the spring form a structure which utilizes gas to push the piston to extrude the spring, and the compression amount of the spring under the corresponding gas pressure intensity can be measured by utilizing the scales on the outer surface of the barrel body; a person selects a proper spring to be installed in the gas filter according to the working limit of the spring.

Description

Technical Field

[0001] This utility model relates to the field of gas processing equipment technology, specifically a device for measuring the relationship between filter spring compression and gas pressure. Background Technology

[0002] In the field of industrial gas filtration, the performance and reliability of gas filters are crucial. Gas filters filter gas through filter elements, and the fixing and support of the filter elements typically rely on springs. There is a direct relationship between the spring compression and the gas pressure, and the selection of the spring directly determines the stability of the filter element and the operational reliability of the filter.

[0003] In the existing technology, the selection of springs for gas filters has the following problems:

[0004] 1. Difficulty in spring selection: In practical applications, the gas pressure varies greatly under different operating conditions, requiring the selection of appropriate spring specifications based on the specific gas pressure. However, there is currently a lack of an effective device to measure the compression of the spring under different gas pressures, leading to spring selection relying primarily on experience, which makes it difficult to ensure accuracy.

[0005] 2. Sealing Issues: The sealing of the device is crucial during measurement and use. Poor sealing can lead to inaccurate measurement results and affect the reliability of spring selection. Existing devices often fail to maintain a proper seal after repeated disassembly and reassembly, further reducing measurement accuracy.

[0006] In summary, existing technologies have significant shortcomings in terms of gas filter spring selection, measuring device sealing, and measurement accuracy, making it difficult to meet the requirements for spring selection and reliable use in the industrial gas filtration field. Utility Model Content

[0007] The technical problem to be solved by this invention is to provide a device that can more accurately measure the relationship between spring compression and gas pressure, so as to improve the design and reliability of gas filters.

[0008] This utility model is achieved through the following technical solution: A device for measuring the relationship between the compression of a filter spring and gas pressure includes a body, a cylinder within the body, and a spring placed inside the cylinder. The device is characterized by a piston slidably disposed within the cylinder. An outlet valve and an inlet valve are connected to the upper end of the body. A pressure gauge is connected to one side of the inlet valve. A scale is provided on the cylinder. The opening degree of the inlet and outlet valves changes the pressure of the gas entering the cylinder. The gas pushes the piston to compress the spring, and the scale provides feedback on the spring's compression.

[0009] A further technical solution includes a body comprising a first seat and a second seat, which are connected by fasteners. The cylinder is fixedly disposed between the first seat and the second seat, and a sealing structure is provided between the cylinder and the first and second seats. The second seat is also provided with a limiting structure for limiting the spring.

[0010] A further technical solution includes a fastener comprising multiple screws, with two nuts threadedly connected at both ends of each screw. After the screws pass through the second base and the first base, the nuts clamp and fix the second base and the first base.

[0011] A further technical solution includes a sealing structure comprising a first groove disposed on the lower end face of the first seat, a first sealing ring disposed in the first groove, the cylindrical body inserted into the first groove and abutting against the first sealing ring, a second groove disposed in the second seat, a second sealing ring disposed in the second groove, the cylindrical body inserted into the second groove and abutting against the second sealing ring.

[0012] A further technical solution includes a limiting structure comprising a placement groove disposed within the second seat, wherein a base is fixedly disposed within the placement groove, and the spring is sleeved on the outer surface of the base.

[0013] In a further technical solution, the outer surface of the piston is provided with an upper and a lower mounting groove. A first piston sealing ring is fitted inside the upper mounting groove, and a second piston sealing ring is fitted inside the lower mounting groove. The first piston sealing ring and the second piston sealing ring abut against the inner end wall of the cylinder.

[0014] In a further technical solution, the diameter of the upper part of the piston is larger than the diameter of the lower part of the piston, and the diameter of the first piston sealing ring is larger than the diameter of the second piston sealing ring.

[0015] In a further technical solution, the upper end face of the piston is provided with a first inner hole, and the lower end face of the piston is provided with a second inner hole.

[0016] In a further technical solution, the cylinder is made of a transparent material.

[0017] The beneficial effects of this utility model are as follows: First, the device forms a structure by means of a first seat, a cylinder, a second seat, a piston, and a spring, which uses gas to push the piston to compress the spring. The compression of the spring under the corresponding gas pressure intensity can be measured by using the scale on the outer surface of the cylinder, so that personnel can select a suitable spring to install in the gas filter according to the working limit of the spring.

[0018] 2. The first base, screw, nut, cylinder and second base are connected by a detachable method, which makes it easy for personnel to disassemble the device and replace the springs of different specifications and put them on the outer surface of the base.

[0019] Third, by utilizing the first groove, the first sealing ring, the second groove, the second sealing ring, the first seat, the second seat, the cylinder, the piston, the second piston sealing ring, the first piston sealing ring, and the mounting groove, a sealed piston structure is formed as a whole to improve the accuracy of measurement, and the same sealing performance can be maintained after disassembly and reassembly.

[0020] Fourth, the base is tapered to guide and position the spring, and the bottom of the piston is provided with a second inner hole, which can effectively lock and limit the top of the spring, so that the base can apply downward force and compress correctly, avoiding tilting. Attached Figure Description

[0021] For ease of explanation, the present invention will be described in detail below with reference to specific embodiments and accompanying drawings.

[0022] Figure 1 This is a schematic diagram of the overall structure of a device for measuring the relationship between filter spring compression and gas pressure according to the present invention.

[0023] Figure 2 for Figure 1 A schematic diagram of the structure after removing the cylindrical body;

[0024] Figure 3 for Figure 2 A bottom-view structural diagram of the central device;

[0025] Figure 4 for Figure 1 A cross-sectional view of the device in the middle;

[0026] Figure 5 for Figure 1 Schematic diagram of the structure of each component of the device;

[0027] In the figure, the components are: second seat 11, second groove 12, base 13, placement groove 14, second sealing ring 15, spring 16, first sealing ring 17, first seat 18, pressure gauge 19, air inlet valve 21, air outlet valve 22, piston 23, second piston sealing ring 24, cylinder 25, screw 26, nut 27, first piston sealing ring 29, first inner hole 31, second inner hole 32, mounting groove 33, and first groove 34. Detailed Implementation

[0028] like Figures 1-5 As shown, this utility model will be described in detail. For ease of description, the directions mentioned below are defined as follows: the directions of up, down, left, right, front, and back mentioned below are the same as... Figure 1 The projection relationship is consistent in all directions (up, down, left, right, front, back). This utility model discloses a device for measuring the relationship between the compression of a filter spring and gas pressure. It includes a body with a cylinder 25 inside. A spring 16 is placed inside the cylinder 25, and a piston 23 is slidably mounted inside the cylinder 25. An outlet valve 22 and an inlet valve 21 are connected to the upper end of the body. A pressure gauge 19 is connected to one side of the inlet valve 21. The cylinder 25 has graduations. By manually controlling the opening of the inlet valve 21 and the outlet valve 22, the pressure of the gas entering the cylinder 25 is changed, causing the gas to push the piston 23 and compress the spring 16. After placing springs 16 of different specifications, the compression under different gas pressures can be observed using the graduations. This allows for the determination of the spring 16's maximum operating range after installation in a gas filter, preventing the filter element from being pushed downwards and compressing the spring 16 if the gas pressure exceeds the limit, ultimately causing the filter element to detach and the filter to fail.

[0029] Advantageously, the body includes a first seat 18 and a second seat 11, which are connected by fasteners. A cylinder 25 is fixedly disposed between the first seat 18 and the second seat 11. A sealing structure is provided between the cylinder 25 and the first seat 18 and the second seat 11. A limiting structure for limiting the spring 16 is also provided on the second seat 11.

[0030] Advantageously, the fastener includes a plurality of screws 26, with threads at both ends of the screws 26, and two nuts 27 are threadedly connected to the threads. After the screws 26 pass through the second seat 11 and the first seat 18, the nuts 27 are used to clamp and fix the second seat 11 and the first seat 18, and the cylinder 25 is fixed between the first seat 18 and the second seat 11 by the above structure.

[0031] Advantageously, the sealing structure includes a first groove 34 disposed on the lower end face of the first seat 18, a first sealing ring 17 disposed in the first groove 34, a cylindrical body 25 inserted into the first groove 34 and abutting against the first sealing ring 17, a second groove 12 disposed in the second seat 11, a second sealing ring 15 disposed in the second groove 12, and a cylindrical body 25 inserted into the second groove 12 and abutting against the second sealing ring 15.

[0032] Advantageously, the limiting structure includes a placement groove 14 disposed in the second seat 11, a base 13 is fixedly disposed in the placement groove 14, and a spring 16 is sleeved on the outer surface of the base 13.

[0033] Advantageously, the outer surface of the piston 23 is provided with an upper and a lower mounting groove 33. The upper mounting groove 33 is fitted with a first piston sealing ring 29, and the lower mounting groove 33 is fitted with a second piston sealing ring 24. The first piston sealing ring 29 and the second piston sealing ring 24 abut against the inner end wall of the cylinder 25 to form a sealed piston structure.

[0034] Advantageously, the upper portion of piston 23 has a larger diameter than the lower portion of piston 23, and the first piston seal ring 29 has a larger diameter than the second piston seal ring 24.

[0035] Advantageously, the upper end face of the piston 23 is provided with a first inner hole 31, and the lower end face of the piston 23 is provided with a second inner hole 32, the second inner hole 32 being used to compress the spring 16.

[0036] Beneficially, the cylinder 25 is made of transparent material, preferably high-pressure resistant borosilicate glass.

[0037] By setting up a body that is detachable, the first base 18 can be removed, and springs 16 of different specifications are then installed on the outer surface of the base 13. Air is introduced through the inlet valve 21 and discharged through the outlet valve 22. By adjusting the opening of the inlet valve 21 and the outlet valve 22, the gas pressure above the piston 23 in the cylinder 25 is measured using the pressure gauge 19. Then, due to the gas pressure acting on the piston 23, the piston 23 compresses the spring 16. The elastic compression of the spring 16 under the corresponding pressure can be determined by using the scale lines on the outer surface of the cylinder 25.

[0038] In the initial stage, the position of the top of spring 16 on the outer surface of cylinder 25 is recorded when no high-pressure gas is introduced. Then, after high-pressure gas is introduced, piston 23 compresses spring 16, and the position of the top of spring 16 is recorded again. By subtracting the two scale positions, the elastic compression of spring 16 under this pressure intensity can be obtained, so as to measure the working limit of spring 16 under this pressure condition. This avoids the filter element of the gas filter from slipping due to greater expansion and contraction under higher pressure, so that personnel can select the appropriate spring 16 to install in the gas filter under different working conditions.

[0039] When replacing spring 16, loosen the nuts 27 on the upper and lower sides of the first seat 18 from the upper end of the screw 26, and then remove the first seat 18 from the upper side; or loosen the nuts 27 on the upper and lower sides of the second seat 11 from the lower end of the screw 26, and then remove the second seat 11 from the lower side.

[0040] After removing the first base 18, remove the piston 23 from the cylinder 25, then take out the spring 16, replace it with a spring of a different specification, and fit it onto the outer surface of the base 13.

[0041] After removing the second base 11, simply take out the spring 16, replace it with a spring of a different specification, and fit it onto the outer surface of the base 13.

[0042] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions conceived without creative effort should be included within the protection scope of this utility model; therefore, the protection scope of this utility model should be determined by the scope defined in the claims.

Claims

1. A device for measuring the relationship between filter spring compression and gas pressure, comprising a body, wherein a cylinder (25) is disposed within the body, and a spring (16) is placed inside the cylinder (25), characterized in that, A piston (23) is slidably disposed inside the cylinder (25). An exhaust valve (22) and an intake valve (21) are connected to the upper end of the machine body. A pressure gauge (19) is connected to one side of the intake valve (21). A scale line is provided on the cylinder (25). The opening degree of the intake valve (21) and the exhaust valve (22) changes the pressure of the gas entering the cylinder (25). The gas pushes the piston (23) to compress the spring (16). The compression amount of the spring (16) is fed back by the scale line.

2. The device for measuring the relationship between filter spring compression and gas pressure according to claim 1, characterized in that: The body includes a first seat (18) and a second seat (11), which are connected by fasteners. The cylinder (25) is fixedly disposed between the first seat (18) and the second seat (11). A sealing structure is provided between the cylinder (25) and the first seat (18) and the second seat (11). The second seat (11) is also provided with a limiting structure for limiting the spring (16).

3. The device for measuring the relationship between filter spring compression and gas pressure according to claim 2, characterized in that: The fastener includes multiple screws (26), and two nuts (27) are threadedly connected to both ends of the screws (26). After the screws (26) pass through the second seat (11) and the first seat (18), the nuts (27) clamp and fix the second seat (11) and the first seat (18).

4. The device for measuring the relationship between filter spring compression and gas pressure according to claim 2, characterized in that: The sealing structure includes a first groove (34) disposed on the lower end face of the first seat (18), a first sealing ring (17) disposed in the first groove (34), the cylindrical body (25) being inserted into the first groove (34) and abutting against the first sealing ring (17), a second groove (12) disposed in the second seat (11), a second sealing ring (15) disposed in the second groove (12), the cylindrical body (25) being inserted into the second groove (12) and abutting against the second sealing ring (15).

5. The device for measuring the relationship between filter spring compression and gas pressure according to claim 2, characterized in that: The limiting structure includes a placement groove (14) disposed in the second seat (11), a base (13) is fixedly disposed in the placement groove (14), and the spring (16) is sleeved on the outer surface of the base (13).

6. The apparatus for measuring the relationship between filter spring compression and gas pressure according to any one of claims 1-5, characterized in that: The piston (23) has an upper and a lower mounting groove (33) on its outer surface. The upper mounting groove (33) is fitted with a first piston sealing ring (29), and the lower mounting groove (33) is fitted with a second piston sealing ring (24). The first piston sealing ring (29) and the second piston sealing ring (24) abut against the inner end wall of the cylinder (25).

7. The device for measuring the relationship between filter spring compression and gas pressure according to claim 6, characterized in that: The upper portion of the piston (23) has a larger diameter than the lower portion of the piston (23), and the first piston seal (29) has a larger diameter than the second piston seal (24).

8. The device for measuring the relationship between filter spring compression and gas pressure according to claim 6, characterized in that: The piston (23) has a first inner hole (31) on its upper end face and a second inner hole (32) on its lower end face.

9. The device for measuring the relationship between filter spring compression and gas pressure according to claim 1, characterized in that: The cylindrical body (25) is made of transparent material.

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