A gas pressure regulator debugging platform and a calibration method thereof

Abstract

The present application relates to the technical field of sealing detection, and discloses a gas pressure regulator debugging platform and a calibration method thereof, which comprises a workbench and a control box matched with the workbench, a water tank is formed in the workbench, a sealed box is arranged in the water tank, and a communication port is formed in the side wall of the sealed box and communicates with the water tank. The sealed box and the water tank form a fully-closed water sealing environment through the communication port, the leaked gas is firmly confined in the sealed space and cannot escape, the visual monitoring is realized by cooperating with the liquid level difference change, the outside gas interference is effectively isolated, the detection precision is greatly improved, the mechanical structures such as the floating ball, the top rod and the valve core are directly linked, the automatic cut-off after the leakage detection can be realized without power driving, and the system failure risk is reduced. In addition, the heating sheet adopts an indirect water bath heating mode, which can accurately adjust the temperature in the sealed box, simulate the potential leakage risk under the high-temperature and low-temperature working conditions, and ensure the detection safety through the design of being isolated from the gas.

Description

Technical Field

[0001] This invention belongs to the field of sealing test technology, specifically, it relates to a gas pressure regulator debugging platform and its calibration method. Background Technology

[0002] As a key piece of equipment in the gas transmission system, the performance of the gas pressure regulator directly affects the stability and safety of the gas supply. Therefore, it is particularly important to conduct accurate leak detection and performance debugging of the gas pressure regulator.

[0003] Currently, most traditional methods for detecting leaks in gas pressure regulators are conducted in open or semi-open environments. When a gas pressure regulator leaks, the leaked gas diffuses directly into the air. To prevent the gas from accumulating in the air and causing safety accidents, additional adsorption components are usually required to adsorb the leaked gas. However, these adsorption components cannot completely collect the leaked gas, and some of it may still diffuse in the environment, not only polluting the air but also potentially forming flammable and explosive mixtures locally. Furthermore, if the leaked gas comes into contact with an external heat source, it may pose a safety hazard.

[0004] In view of this, the present invention is proposed. Summary of the Invention

[0005] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by the present invention is as follows: A gas pressure regulator commissioning platform includes a workbench and its corresponding control box.

[0006] The workbench is equipped with a water tank, the water tank is equipped with a sealed box, and the sealed box is equipped with a top cover for sealing. The side wall of the sealed box is equipped with a communication port that communicates with the water tank. The sealed box is equipped with a communication component that is connected to a gas pressure regulator. The sealed box is slidably mounted with a support platform for placing the gas pressure regulator. The liquid level of the sealed box and the water tank is below the gas pressure regulator, and the connecting port is below the liquid level. When the gas pressure regulator leaks, it squeezes the liquid level of the sealed box to move down to serve as a warning. A valve seat is installed on the connecting component, and a valve core is installed on the valve seat. A float ball is connected to the bottom of the valve core to control its rise and fall and floats in the water tank liquid surface. When the liquid level in the sealing box drops, it lifts the water tank liquid level to rise and controls the opening and closing of the valve seat. The sealing box is equipped with heating elements on its side wall, which are used to control the operating temperature and are positioned below the liquid level in the sealing box.

[0007] In a preferred embodiment of the present invention, the control box housing is installed at the bottom of the workbench, and four support legs are installed at the bottom of the control box. Reinforcing ribs of different heights are installed between adjacent support legs. An observation window is provided on the surface of the sealed box, and scale lines are printed on the observation window.

[0008] In a preferred embodiment of the present invention, a sealing groove is provided on the top of the sealing box, a recess is provided at the center of the sealing box, a boss is installed at the bottom of the top cover, the boss and the recess correspond to each other, and a locking bolt is screwed between them, and a sealing gasket is installed at the bottom of the top cover, and the sealing gasket and the sealing groove are mutually compatible.

[0009] In a preferred embodiment of the present invention, the connecting component includes an inlet pipe, an outlet pipe, and a pressure relief pipe. One end of the inlet pipe is connected to the gas delivery system inside the control box, and one end of the outlet pipe is connected to the gas recovery system inside the control box. Both the inlet pipe and the outlet pipe pass through the sealed box. The ends of the inlet pipe and the outlet pipe are connected to flexible hoses, and the two flexible hoses are connected to the inlet and outlet of the gas pressure regulator. The pressure relief pipe is connected to the pressure relief port of the gas pressure regulator.

[0010] In a preferred embodiment of the present invention, positioning seats are installed on the air inlet pipe and the air outlet pipe, and the positioning seats are installed on the water tank. A first valve is installed on the air inlet pipe, and a connecting pipe is installed on the side wall of the pressure relief pipe located at the bottom of the top cover. A second valve is installed on the connecting pipe, and the connecting pipe is used to discharge the leaked gas inside the sealed box. The pressure relief pipe is connected to the gas recovery system.

[0011] In a preferred embodiment of the present invention, a sliding plate is installed on the side wall of the support platform, and a guide rod is movably disposed through the sliding plate. The bottom of the guide rod is installed on the water tank, and a compression spring is sleeved on the guide rod. One end of the compression spring is engaged with the end face of the water tank, and the other end is engaged with the bottom of the sliding plate. A sleeve is installed on the top of the top cover, and the sleeve is inserted into the guide rod, with the end of the sleeve pressing against the sliding plate.

[0012] In a preferred embodiment of the present invention, a notch is provided on the support platform, a retaining shaft is installed on the notch, and a pressing plate is installed on the retaining shaft. The pressing plate flips to position the gas pressure regulator. A first torsion spring is sleeved on the retaining shaft. The two ends of the first torsion spring are engaged with the side wall of the notch and the pressing plate. A push rod is installed at the rotation center of the pressing plate, and the push rod is in an inclined state. The push rod corresponds to the base installed on the water tank and is used to deflect the push rod.

[0013] In a preferred embodiment of the present invention, a fixing seat is installed on the outer wall of the sealing box, a synchronous shaft is installed on the fixing seat, a fixing block is installed on the synchronous shaft, a second torsion spring is sleeved on the synchronous shaft, one end of the second torsion spring is engaged with the side wall of the fixing block, the other end of the second torsion spring is engaged with the side wall of the fixing seat, and a cover plate is installed on the end face of the fixing block. The diameter of the cover plate is larger than the diameter of the communication opening, and the cover plate covers the outer wall of the communication opening.

[0014] In a preferred embodiment of the present invention, the valve seat has a valve port connected to the air inlet pipe, a valve core is movably inserted into the valve port, a return spring is snapped onto the valve core at the end of the valve seat, the compression direction of the return spring and the movement direction of the valve core are on the same straight line, a push rod is installed at the bottom of the valve core, and the push rod movably passes through the valve seat, and the bottom of the push rod is connected to the float.

[0015] A calibration method for a gas pressure regulator, comprising the following steps: Step 1: Equipment and environment inspection. Check whether each component of the commissioning platform is intact, including the sealing of the sealed box and top cover, the water level in the water tank, the power supply of the control box, and the function of the heating element. Step 2: Install and fix the pressure regulator. Place the gas pressure regulator stably in the center of the support platform, align the gas inlet, gas outlet and hose, and press the top cover to make the boss and groove fit together. Fix it with the locking bolts. At the same time, the top cover presses against the support platform, causing the sliding plate to slide down and make the pressing plate fit tightly against the outer wall of the pressure regulator. Step 3: Basic debugging and leak detection. The gas delivery system in the control box supplies gas to the gas regulator through the air inlet pipe and hose. Observe the changes in the liquid level in the sealing box and the scale line in the observation window. If the gas regulator leaks, the liquid level in the sealing box will drop and the liquid level in the water tank will rise. The float will drive the valve core through the push rod to cut off the air intake of the air inlet pipe. Record the leak situation. Step 4: Temperature simulation calibration. Set the heating element temperature through the control box to place the gas pressure regulator in different temperature environments. Continuously monitor the leakage and pressure regulation performance of the pressure regulator under high and low temperature conditions and record the data.

[0016] Compared with the prior art, the present invention has the following advantages: This invention combines a mechanical seal structure with the principle of communicating vessels. The sealed box and water tank are connected by a connecting port to create a fully enclosed water-sealed environment. Leaking gas is firmly confined within the sealed space and cannot escape. Combined with changes in liquid level difference, it enables visual monitoring, effectively isolating external gas interference and greatly improving detection accuracy. At the same time, the direct linkage of mechanical structures such as the float, push rod, and valve core enables automatic shut-off after leak detection without the need for electric drive, reducing the risk of system failure. In addition, the heating element adopts an indirect water bath heating method, which can accurately adjust the temperature inside the sealed box, simulate the potential leakage risk under high and low temperature conditions, and reduce the risk of explosion through the design of isolation from gas, ensuring detection safety and providing strong support for comprehensive and reliable testing of gas pressure regulators.

[0017] The specific embodiments of the present invention will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0018] In the attached diagram: Figure 1 A 3D diagram of a gas pressure regulator commissioning platform; Figure 2 This is an overall diagram of a gas pressure regulator commissioning platform; Figure 3 This is a partial view of a gas pressure regulator commissioning platform; Figure 4 A cross-sectional view of the valve seat of a gas pressure regulator commissioning platform; Figure 5 A cross-sectional view of the sealed enclosure of a gas pressure regulator commissioning platform; Figure 6 For a gas pressure regulator commissioning platform Figure 5 Bottom view; Figure 7 For a gas pressure regulator commissioning platform Figure 6 Enlarged view of point A in the middle; Figure 8 This is a structural diagram of the support platform for a gas pressure regulator debugging platform.

[0019] In the picture: 1. Workbench; 11. Control box; 111. Support leg; 112. Reinforcing rib; 12. Water tank; 121. Sealing box; 122. Observation window; 123. Positioning seat; 124. Base; 13. Air inlet pipe; 131. First valve; 14. Air outlet pipe; 15. Hose; 16. Top cover; 161. Sealing gasket; 162. Boss; 163. Groove; 164. Sealing groove; 17. Pressure relief pipe; 171. Connecting pipe; 172. Second valve; 2. Support platform; 21. Slide plate; 211. Guide rod; 212. Compression spring; 213. Sleeve; 22. Extrusion plate; 221. Push rod; 222. Snap pin; 223. First torsion spring; 224. Notch; 3. Connecting port; 31. Cover plate; 311. Fixing block; 312. Synchronous shaft; 313. Second torsion spring; 314. Fixing base; 4. Valve seat; 41. Valve core; 411. Valve port; 42. Float; 421. Push rod; 422. Return spring; 5. Heating element. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate the present invention. Example 1:

[0021] like Figures 1 to 8 As shown, a gas pressure regulator debugging platform includes a workbench 1 and its adapted control box 11.

[0022] A water tank 12 is provided on the workbench 1. A sealed box 121 is provided inside the water tank 12. The sealed box 121 is provided with a top cover 16 for sealing. A communication port 3 communicating with the water tank 12 is provided on the side wall of the sealed box 121. A communication component connected to the gas pressure regulator is installed inside the sealed box 121. A support platform 2 for placing a gas pressure regulator is slidably installed on the sealed box 121. The liquid level of the sealed box 121 and the water tank 12 is below the gas pressure regulator, and the connecting port 3 is always below the liquid level. When the gas pressure regulator leaks, it squeezes the liquid level of the sealed box 121 to move down to serve as a warning. A valve seat 4 is installed on the connecting component, and a valve core 41 is installed on the valve seat 4. The bottom of the valve core 41 is connected to a float ball 42 that controls its rise and fall and floats in the liquid level of the water tank 12. When the liquid level of the sealed box 121 drops, it lifts the liquid level of the water tank 12 to rise and controls the opening and closing of the valve seat 4. A heating element 5 is installed on the side wall of the sealed box 121 to control the working temperature and is always placed below the liquid level of the sealed box 121.

[0023] like Figures 1 to 8 As shown, in a specific embodiment, the control box 11 is mounted on the bottom of the workbench 1. Four support legs 111 are installed on the bottom of the control box 11, and reinforcing ribs 112 of varying heights are installed between adjacent support legs 111. An observation window 122 is provided on the surface of the sealed box 121, and scale lines are printed on the observation window 122. The reinforcing ribs enhance the structural stability of the control box, and the observation window and scale lines facilitate the operator's intuitive acquisition of liquid level change data, improving detection efficiency.

[0024] like Figures 1 to 8 As shown, the top of the sealed box 121 has a sealing groove 164, and the center of the sealed box 121 has a recess 163. A boss 162 is installed at the bottom of the top cover 16, and the boss 162 and the recess 163 correspond to each other and are tightened together with a locking bolt. A sealing gasket 161 is installed at the bottom of the top cover 16, and the sealing gasket 161 and the sealing groove 164 are mutually compatible. This structural design ensures the high airtightness of the sealed box, prevents external gases from interfering with the test results, and avoids leakage of gas. Example 2:

[0025] The difference between the above embodiments and this embodiment is that: Figures 1 to 8 As shown, the connecting components include an inlet pipe 13, an outlet pipe 14, and a pressure relief pipe 17. One end of the inlet pipe 13 is connected to the gas delivery system inside the control box 11, and one end of the outlet pipe 14 is connected to the gas recovery system inside the control box 11. Both the inlet pipe 13 and the outlet pipe 14 pass through the sealed box 121. Flexible hoses 15 are connected to the ends of the inlet pipe 13 and the outlet pipe 14, and both hoses 15 are connected to the inlet and outlet of the gas pressure regulator. The pressure relief pipe 17 is connected to the pressure relief port of the gas pressure regulator. The gas delivery system and the gas recovery system are existing technologies, and their working principles will not be described in detail here.

[0026] like Figures 1 to 8 As shown, in a specific embodiment, positioning seats 123 are installed on the air inlet pipe 13 and the air outlet pipe 14, and the positioning seats 123 are installed on the water tank 12. A first valve 131 is installed on the air inlet pipe 13. A connecting pipe 171 is installed on the side wall of the pressure relief pipe 17 located at the bottom of the top cover 16. A second valve 172 is installed on the connecting pipe 171, and the connecting pipe 171 is used to discharge leaked gas inside the sealed box 121. The pressure relief pipe 17 is connected to the gas recovery system. The closed-loop gas delivery system, combined with the pressure relief pipe design, ensures normal gas supply for detection and can safely handle leaked or excess gas, avoiding pollution and danger.

[0027] like Figures 1 to 8 As shown, a sliding plate 21 is further installed on the side wall of the support platform 2. A guide rod 211 is movably connected through the sliding plate 21. The bottom of the guide rod 211 is installed on the water tank 12, and a compression spring 212 is sleeved on the guide rod 211. One end of the compression spring 212 is engaged with the end face of the water tank 12, and the other end is engaged with the bottom of the sliding plate 21. A sleeve 213 is installed on the top of the top cover 16. The sleeve 213 is inserted into the guide rod 211, and the end of the sleeve 213 is pressed against the sliding plate 21. When the top cover 16 is pressed, the sleeve 213 moves down, pushing the sliding plate 21 to slide down along the guide rod 211. The compression spring 212 is compressed, causing the support platform 2 to descend smoothly, ensuring that the gas regulator is slowly and safely immersed in the liquid in the sealed box 121. Example 3:

[0028] The difference between the above embodiments and this embodiment is that: Figures 1 to 8 As shown, the support platform 2 has a notch 224, on which a retaining shaft 222 is installed. A pressing plate 22 is installed on the retaining shaft 222. The pressing plate 22 flips to position the gas regulator. A first torsion spring 223 is sleeved on the retaining shaft 222, with both ends of the first torsion spring 223 engaged with the sidewall of the notch 224 and the pressing plate 22. A push rod 221 is installed at the rotation center of the pressing plate 22, and the push rod 221 is in an inclined state. The push rod 221 corresponds to the base 124 installed on the water tank 12, and is used to press the push rod 221 to deflect. When the support platform 2 descends, the push rod 221 gradually approaches the base 124 and is eventually pressed by the inclined surface at the top of the base 124, forcing the pressing plate 22 to rotate around the retaining shaft 222 and flip towards the gas regulator. The first torsion spring 223 deforms and accumulates elastic force, causing the pressing plate 22 to fit tightly against the outer wall of the gas regulator, achieving elastic fixation of the regulator and avoiding damage caused by hard contact.

[0029] like Figures 1 to 8 As shown, in a specific embodiment, a fixing seat 314 is installed on the outer wall of the sealing box 121. A synchronous shaft 312 is installed on the fixing seat 314, and a fixing block 311 is installed on the synchronous shaft 312. A second torsion spring 313 is sleeved on the synchronous shaft 312. One end of the second torsion spring 313 is engaged with the side wall of the fixing block 311, and the other end of the second torsion spring 313 is engaged with the side wall of the fixing seat 314. A cover plate 31 is installed on the end face of the fixing block 311. The diameter of the cover plate 31 is larger than the diameter of the connecting opening 3. During normal testing, the second... Under the elastic force of the torsion spring 313, the cover plate 31 tightly covers the outer wall of the connecting port 3, preventing external liquid in the water tank 12 from entering the sealed box 121 and ensuring the stability of the temperature field inside the box. When the liquid in the sealed box 121 expands or leaks due to heating, causing an abnormal increase in pressure, the air pressure inside the box generates a lateral thrust on the cover plate 31 through the connecting port 3. When the thrust exceeds the preload of the second torsion spring 313, the cover plate 31 rotates and flips around the synchronous shaft 312, the connecting port 3 opens, and the liquid is discharged into the water tank 12, thus releasing the pressure.

[0030] like Figures 1 to 8As shown, the valve seat 4 further includes a valve port 411 connected to the air inlet pipe 13. A valve core 41 is movably inserted into the valve port 411. A return spring 422 is engaged with the valve core 41 at the end of the valve seat 4. The compression direction of the return spring 422 and the movement direction of the valve core 41 are on the same straight line. A push rod 421 is installed at the bottom of the valve core 41, and the push rod 421 movably passes through the valve seat 4. The bottom of the push rod 421 is connected to the float 42. When the gas regulator leaks, the liquid level in the sealing box 121 drops, and the liquid level in the water tank 12 rises, causing the float 42 to float. The float 42 pushes the valve core 41 upward through the push rod 421, compressing the return spring 422 until the valve core 41 blocks the valve port 411, cutting off the gas input to the air inlet pipe 13 and realizing the automatic leak cut-off function.

[0031] This invention also discloses a calibration method for a gas pressure regulator, the steps of which are as follows: Step 1: Equipment and environment inspection. Check whether each component of the debugging platform is intact, including the sealing of the sealed box 121 and the top cover 16, the water level of the water tank 12, the power supply of the control box 11, and the function of the heating element 5. Step 2: Install and fix the pressure regulator. Place the gas pressure regulator stably in the center of the support platform 2, align the gas inlet, gas outlet and hose 15, and press the top cover 16 so that the boss 162 and the groove 163 cooperate. Fix it with the locking bolts. At the same time, the top cover 16 presses against the support platform 2, causing the slide plate 21 to slide down, so that the pressing plate 22 fits tightly against the outer wall of the pressure regulator. Step 3: Basic debugging and leak detection. The gas delivery system in the control box 11 supplies gas to the gas regulator through the air inlet pipe 13 and the hose 15. Observe the changes in the liquid level in the sealing box 121 and the scale line in the observation window 122. If the gas regulator leaks, the liquid level in the sealing box 121 will drop and the liquid level in the water tank 12 will rise. The float ball 42 will drive the valve core 41 through the push rod 421 to cut off the air intake of the air inlet pipe 13. Record the leakage situation. Step 4: Temperature simulation calibration. Set the temperature of heating element 5 through control box 11 to place the gas pressure regulator in different temperature environments. Continuously monitor the leakage and pressure regulation performance of the pressure regulator under high and low temperature conditions and record the data.

[0032] The implementation principle of the gas pressure regulator debugging platform of the present invention is as follows: During commissioning, the gas pressure regulator is first placed on the support platform 2 inside the sealed box 121. Then, the top cover 16 is pressed down, causing the protrusion 162 at the bottom of the top cover 16 to gradually embed into the groove 163 of the sealed box 121. At the same time, the sealing gasket 161 at the bottom of the top cover 16 is simultaneously squeezed into the sealing groove 164. During the pressing of the top cover 16, the sleeve 213 at the top of the top cover 16 moves down with the top cover 16, gradually contacting and squeezing the sliding plate 21 on the side wall of the support platform 2. The sliding plate 21 slides down along the guide rod 211, compressing the compression spring 212 sleeved on the guide rod 211, causing the support platform 2 to move downward as a whole until the bottom of the gas pressure regulator enters the area below the liquid surface inside the sealed box 121. At this time, the extrusion plate 22 on the support platform 2 moves down with the support platform, and its inclined push rod 221 gradually approaches the base 124 on the water tank 12. After the top cover 16 is fully secured by the locking bolts, the push rod 221 is pressed by the inclined surface at the top of the base 124, forcing the pressing plate 22 to rotate around the retaining shaft 222 and flip towards the gas pressure regulator. The first torsion spring 223 deforms and accumulates elastic force due to the rotation of the pressing plate 22, making the pressing plate 22 fit tightly against the outer wall of the gas pressure regulator. This multi-structure collaborative elastic fixing design avoids damage to the pressure regulator from hard contact and achieves rapid positioning and stable support through mechanical linkage, significantly improving operational convenience and testing stability.

[0033] At this point, the top cover 16 is fixed by the engagement of the boss 162 and the groove 163 and the locking bolts. The sealing gasket 161 is embedded in the sealing groove 164 to ensure the high airtightness of the sealing box 121. At the same time, the sealing box 121 and the water tank 12 form a communicating vessel through the connecting port 3. The liquid levels of both are located below the gas pressure regulator, and the connecting port 3 is submerged below the liquid level, forming a water-sealed environment. The mechanism consisting of the fixing seat 314, the synchronous shaft 312, and the second torsion spring 313 on the outer wall of the sealing box 121 ensures that the cover plate 31 tightly covers the outer wall of the connecting port 3, further enhancing the sealing effect. When it is necessary to drain the liquid from the sealing box 121, the elastic force of the second torsion spring 313 can be overcome by external force, and the cover plate 31 can be rotated to open the connecting port 3, so as to quickly drain the liquid and facilitate maintenance and cleaning. This design, which combines the mechanical seal structure with the communicating vessel principle, not only realizes the visual detection of leakage by utilizing the change in liquid level difference, but also effectively isolates external gas interference through the water seal method, greatly improving the accuracy and reliability of leakage detection.

[0034] The gas delivery system inside control box 11 supplies gas to the gas regulator via inlet pipe 13 and hose 15. After passing through the regulator, the gas enters the gas recovery system through outlet pipe 14, forming a closed loop. When the gas regulator leaks, the leaking gas enters the sealed box 121, causing the liquid level inside to drop. Due to the connection effect of connecting port 3, the liquid level in water tank 12 rises synchronously. Operators can visually judge the liquid level change and monitor the leak through the observation window 122 and scale lines on the surface of sealed box 121. At the same time, the rise in the liquid level in water tank 12 causes float ball 42 to rise. Float ball 42 pushes valve core 41 upward through push rod 421, compressing return spring 422 until valve core 41 blocks valve port 411, cutting off the gas input from inlet pipe 13. This design, which directly links liquid level detection and valve control through a mechanical structure, achieves a rapid response mechanism of leak detection and automatic shut-off, requiring no additional power drive. This improves safety while reducing system complexity and failure rate.

[0035] The heating element 5, located below the liquid surface on the sealed housing 121, allows for precise temperature regulation via the control box 11. The heating element 5 acts directly on the liquid inside the sealed housing 121, rapidly and evenly conducting heat through the liquid medium, ensuring the gas pressure regulator is completely immersed in the set temperature environment. This design overcomes the limitations of traditional room-temperature testing, enabling targeted detection of potential leakage risks in the pressure regulator due to increased material thermal expansion gaps and softening / deformation of rubber seals at high temperatures, or embrittlement of metal components and hardening / cracking of plastic parts at low temperatures.

[0036] The heating element 5 employs an indirect water bath heating method, with the heating element 5 completely immersed in the liquid. This isolates it from any potential gas leaks within the sealed enclosure 121, eliminating the risk of explosion caused by electrical sparks or high-temperature surfaces. Even if the pressure regulator leaks and gas accumulates in the space above the liquid surface, the heating element 5, being encased in liquid, cannot directly ignite the gas, significantly improving the safety of detection under high-temperature conditions.

[0037] During temperature simulation, the cover plate 31 on the outer wall of the sealed chamber 121, connected to the second torsion spring 313 via the synchronous shaft 312, tightly covers the outside of the connecting port 3 during normal testing. The elastic force of the second torsion spring 313 keeps the cover plate 31 sealed, preventing external liquid from the water tank 12 from entering the sealed chamber 121 through the connecting port 3, thus ensuring the stability of the temperature field inside the sealed chamber 121 and preventing external room temperature liquid from mixing in and affecting temperature accuracy. When the sealed chamber 121 experiences abnormal pressure rise due to liquid expansion or leakage caused by heating, the internal pressure will exert a lateral thrust on the cover plate 31 through the connecting port 3. When the thrust exceeds the preload of the second torsion spring 313, the cover plate 31 rotates and flips around the synchronous shaft 312, opening the connecting port 3, and the liquid is discharged into the water tank 12 through the connecting port 3, thus achieving discharge.

Claims

1. A gas pressure regulator debugging platform, comprising a workbench (1) and a matching control box (11), characterized in that: A water tank (12) is provided on the workbench (1). A sealed box (121) is provided inside the water tank (12). The sealed box (121) is provided with a top cover (16) for sealing. A communication port (3) communicating with the water tank (12) is provided on the side wall of the sealed box (121). A communication component connected to the gas pressure regulator is installed inside the sealed box (121). The sealed box (121) is slidably mounted with a support platform (2) for placing the gas pressure regulator. The liquid level of the sealed box (121) and the water tank (12) is located below the gas pressure regulator, and the connecting port (3) is located below the liquid level. When the gas pressure regulator leaks, the liquid level of the sealed box (121) is squeezed down to serve as a warning. A valve seat (4) is installed on the connecting component, and a valve core (41) is installed on the valve seat (4). A float (42) is connected to the bottom of the valve core (41) to control its rise and fall and floats in the liquid surface of the water tank (12). When the liquid level of the sealing box (121) drops, the liquid level of the water tank (12) rises, controlling the opening and closing of the valve seat (4). The sealing box (121) is equipped with a heating element (5) on its side wall for controlling the working temperature and located below the liquid surface in the sealing box (121).

2. The gas pressure regulator debugging platform according to claim 1, characterized in that, The outer shell of the control box (11) is installed at the bottom of the workbench (1). Four support legs (111) are installed at the bottom of the control box (11). Reinforcing ribs (112) of different heights are installed between adjacent support legs (111). An observation window (122) is provided on the surface of the sealed box (121). Scale lines are printed on the observation window (122).

3. The gas pressure regulator debugging platform according to claim 1, characterized in that, The top of the sealing box (121) is provided with a sealing groove (164), and the center of the sealing box (121) is provided with a groove (163). The bottom of the top cover (16) is provided with a boss (162), and the boss (162) and the groove (163) correspond to each other and are tightened with a locking bolt. The bottom of the top cover (16) is provided with a sealing gasket (161), and the sealing gasket (161) and the sealing groove (164) are compatible with each other.

4. A gas pressure regulator debugging platform according to claim 1, characterized in that, The connecting components include an inlet pipe (13), an outlet pipe (14), and a pressure relief pipe (17). One end of the inlet pipe (13) is connected to the gas delivery system inside the control box (11), and one end of the outlet pipe (14) is connected to the gas recovery system inside the control box (11). Both the inlet pipe (13) and the outlet pipe (14) pass through the sealed box (121). The ends of the inlet pipe (13) and the outlet pipe (14) are connected to flexible hoses (15), and the two flexible hoses (15) are connected to the inlet and outlet of the gas pressure regulator. The pressure relief pipe (17) is connected to the pressure relief port of the gas pressure regulator.

5. A gas pressure regulator debugging platform according to claim 4, characterized in that, Positioning seats (123) are installed on the air inlet pipe (13) and the air outlet pipe (14), and the positioning seats (123) are installed on the water tank (12). A first valve (131) is installed on the air inlet pipe (13). A connecting pipe (171) is installed on the side wall of the pressure relief pipe (17) located at the bottom of the top cover (16). A second valve (172) is installed on the connecting pipe (171). The connecting pipe (171) is used to discharge the leaked gas inside the sealed box (121), and the pressure relief pipe (17) is connected to the gas recovery system.

6. A gas pressure regulator debugging platform according to claim 1, characterized in that, A slide plate (21) is installed on the side wall of the support platform (2). A guide rod (211) is movably installed through the slide plate (21). The bottom of the guide rod (211) is installed on the water tank (12), and a compression spring (212) is sleeved on the guide rod (211). One end of the compression spring (212) is clamped to the end face of the water tank (12), and the other end is clamped to the bottom of the slide plate (21). A sleeve (213) is installed on the top of the top cover (16). The sleeve (213) is inserted into the guide rod (211), and the end of the sleeve (213) is pressed against the slide plate (21).

7. A gas pressure regulator debugging platform according to claim 1, characterized in that, The support platform (2) has a notch (224), a retaining shaft (222) is installed on the notch (224), and a pressing plate (22) is installed on the retaining shaft (222). The pressing plate (22) flips to position the gas pressure regulator. A first torsion spring (223) is sleeved on the retaining shaft (222). The two ends of the first torsion spring (223) are clamped to the side wall of the notch (224) and the pressing plate (22). A push rod (221) is installed at the rotation center of the pressing plate (22), and the push rod (221) is in an inclined state. The push rod (221) corresponds to the base (124) installed on the water tank (12) and is used to squeeze the push rod (221) to deflect.

8. A gas pressure regulator debugging platform according to claim 1, characterized in that, A fixing seat (314) is installed on the outer wall of the sealing box (121). A synchronous shaft (312) is installed on the fixing seat (314). A fixing block (311) is installed on the synchronous shaft (312). A second torsion spring (313) is sleeved on the synchronous shaft (312). One end of the second torsion spring (313) is clamped to the side wall of the fixing block (311), and the other end of the second torsion spring (313) is clamped to the side wall of the fixing seat (314). A cover plate (31) is installed on the end face of the fixing block (311). The diameter of the cover plate (31) is larger than the diameter of the connecting opening (3), and the cover plate (31) covers the outer wall of the connecting opening (3).

9. A gas pressure regulator debugging platform according to claim 1, characterized in that, The valve seat (4) has a valve port (411) connected to the air inlet pipe (13). A valve core (41) is movably inserted into the valve port (411). A return spring (422) is snapped onto the valve core (41) at the end of the valve seat (4). The compression direction of the return spring (422) and the movement direction of the valve core (41) are on the same straight line. A push rod (421) is installed at the bottom of the valve core (41), and the push rod (421) moves through the valve seat (4). The bottom of the push rod (421) is connected to the float (42).

10. A calibration method for a gas pressure regulator, characterized in that, The calibration method for a gas pressure regulator, applicable to any one of claims 1 to 9, comprises the following steps: Step 1: Equipment and environment inspection. Check whether each component of the debugging platform is intact, including the sealing of the sealed box (121) and the top cover (16), the water level of the water tank (12), the power supply of the control box (11), and the function of the heating element (5). Step 2: Install and fix the pressure regulator. Place the gas pressure regulator stably in the center of the support platform (2), align the inlet, outlet and hose (15), and press the top cover (16) so that the boss (162) and the groove (163) fit together. Fix it with the locking bolts. At the same time, the top cover (16) squeezes the support platform (2), causing the slide plate (21) to slide down, so that the extrusion plate (22) fits tightly against the outer wall of the pressure regulator. Step 3: Basic debugging and leak detection. The gas delivery system in the control box (11) supplies gas to the gas regulator through the inlet pipe (13) and hose (15). Observe the changes in the liquid level of the sealing box (121) and the scale line of the observation window (122). If the gas regulator leaks, the liquid level in the sealing box (121) drops and the liquid level in the water tank (12) rises. The float (42) drives the valve core (41) through the top rod (421) to cut off the gas intake of the inlet pipe (13). Record the leakage situation. Step 4: Temperature simulation calibration. Set the temperature of the heating element (5) through the control box (11) to make the gas pressure regulator be in different temperature environments. Continuously monitor the leakage and pressure regulation performance of the pressure regulator under high temperature and low temperature conditions and record the data.

Images