Gas control valve for chemical equipment

Abstract

The present invention relates to the technical field of gas valves, and particularly to a gas regulating valve for chemical equipment, including a base and a mounting frame. The base is connected to the bottom of the mounting frame through a buffer mechanism. The upper end of the mounting frame is fixed with a regulation chamber. An intake pipe and an outlet pipe communicated with the regulation chamber are installed on the side wall of the mounting frame. Connection heads are installed at the ends of the intake pipe and the outlet pipe. A mounting plate is fixed on the inner wall of the regulation chamber. The bottom of the mounting plate is connected with an adjusting plate through a sealing spring. A plug is fixed at the bottom of the adjusting plate. A slot is opened at the upper end of the mounting frame. The advantages are as follows: In the present invention, by rotating the handle forward and backward, the height of the adjusting plate is adjusted, so as to adjust the lower space and the actual blocking area of the plug, and the passing rate can be effectively adjusted. The adjustment process is convenient and fast, and it is not easy to wear and leak.

Description

Technical Field

[0001] The present invention relates to the technical field of gas valves, and particularly to a gas regulating valve for chemical equipment. Background Art

[0002] A gas valve is a new type of safety supporting device for gas pipeline projects, used to cut off, connect, and regulate the gas in the pipeline. It has good control characteristics and closing and sealing performance, and is applicable to various gas medium pipelines such as city gas, liquefied petroleum gas, natural gas, and oxygen;

[0003] Although the gas regulating valves used in current life can adjust the size of the oral flow rate during use, in the event of a fire, once the sealing flap is burned out, the medium in the inlet chamber will leak to the outlet chamber, thus causing a larger fire and increasing the potential safety hazard. Summary of the Invention

[0004] The purpose of the present invention is to solve the problem of easy leakage in the prior art, and a gas regulating valve for chemical equipment is proposed.

[0005] To achieve the above purpose, the present invention adopts the following technical solution: A gas regulating valve for chemical equipment includes a base and a mounting frame. The base and the bottom of the mounting frame are connected by a buffer mechanism. The upper end of the mounting frame is fixed with a regulation chamber. The side wall of the mounting frame is provided with an inlet pipe and an outlet pipe that are connected to the regulation chamber. The ends of the inlet pipe and the outlet pipe are both provided with connectors. The inner wall of the regulation chamber is fixed with a mounting plate. The bottom of the mounting plate is connected to an adjustment plate by a sealing spring. The bottom of the adjustment plate is fixed with an insertion block. The upper end of the mounting frame is provided with a slot, and the slot corresponds to the position of the insertion block. The upper end of the adjustment plate is fixed with a bladder. The upper end of the mounting plate is fixed with an adjustment mechanism.

[0006] In the above-mentioned gas regulating valve for chemical equipment, the adjustment mechanism is composed of a driving component, an upward adjustment component, and a downward adjustment component. A pair of spacer rings are fixed to the upper end of the mounting plate. The driving component includes a rotating shaft rotatably connected to the upper end of the mounting plate. The upper end of the rotating shaft penetrates the top of the regulation chamber and is fixed with a rotating handle.

[0007] In the above-mentioned gas regulating valve for chemical equipment, the upward adjustment component includes an air extraction ring rotatably connected to the side wall of the rotating shaft through a one-way bearing. The side wall of the air extraction ring is fixed with an air extraction block. The inner wall of the regulation chamber is connected to an air extraction plate by an air extraction spring. The side wall of the air extraction plate is fixed with an air extraction strip. The air extraction strip abuts against the air extraction block. The air extraction plate is hermetically slidable with respect to the regulation chamber and the mounting plate.

[0008] In the above-mentioned gas regulating valve for chemical equipment, an external connection hole is penetrated and opened at the top of the regulation chamber, an air outlet hole is penetrated and opened at the upper end of the mounting plate, the position of the air outlet hole corresponds to that of the external connection hole, and check valves are provided inside both the air outlet hole and the external connection hole.

[0009] In the above-mentioned gas regulating valve for chemical equipment, the downward adjustment component includes an air inlet ring rotatably connected to the side wall of the rotating shaft through a one-way bearing, an air inlet block is fixed on the side wall of the air inlet ring, an air inlet plate is connected to the inner wall of the regulation chamber through an air inlet spring, an air inlet strip is fixed on the side wall of the air inlet plate, the air inlet strip abuts against the air inlet block, and the air inlet plate is in sealed sliding connection with both the regulation chamber and the mounting plate.

[0010] In the above-mentioned gas regulating valve for chemical equipment, an air inlet hole is penetrated and opened at the upper end of the mounting plate, a suction hole is penetrated and opened on the side wall of the air inlet plate, the position of the air inlet hole corresponds to that of the suction hole, the air inlet plate abuts against the corresponding side partition ring, and check valves are provided inside both the air inlet hole and the suction hole.

[0011] In the above-mentioned gas regulating valve for chemical equipment, the buffer mechanism includes a support sleeve fixed to the upper end of the base, a support block is fixed to the bottom of the mounting frame, the support block is in sealed sliding connection with the inner wall of the support sleeve, a support spring is jointly fixed to the support block and the upper end of the base, an oil tank is fixed to the outer wall of the support sleeve, an oil suction pipe communicating with the inside of the support sleeve is inserted into the side wall of the oil tank, a slider is in sealed sliding connection with the inner wall of the oil tank, a buffer spring is jointly fixed to the slider and the inner bottom of the oil tank, a sliding rod is fixed to the upper end of the slider, a support plate is fixed to the upper end of the sliding rod, a hanging plate is fixed to the side wall of the support plate, and a hanging block hooked to the hanging plate is fixed to the side wall of the mounting frame.

[0012] Compared with the existing technology, the advantages of the present invention are as follows:

[0013] 1. In the present invention, by rotating the turning handle forward and backward, the height of the adjusting plate is adjusted, so as to adjust the lower space and the actual blocking area of the inserting block, the passing rate can be effectively adjusted, the adjustment process is convenient and fast, and it is not easy to wear and leak.

[0014] 2. In the present invention, in case of high-temperature disasters such as fire, the adjusting plate can overcome the remaining small air pressure difference, quickly move downward under the action of the sealing spring, and then the inserting block is inserted into the slot, while the adjusting plate abuts against the upper end of the mounting frame, pressing and closing the air inlet pipe and the air outlet pipe.

[0015] 3. In the present invention, the inserting block can cut off the connection between the air inlet pipe and the air outlet pipe, so as to avoid continuous external gas supply, stop gas supply preferentially in the face of high-temperature environment, and completely seal and block according to the change of environmental temperature, avoiding leakage due to damage of the sealing parts.

[0016] 4. In the present invention, when impact jitter occurs during gas transmission, the up and down movement of the support plate can provide more stable support for the mounting frame and reduce the amplitude of jitter. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of a gas regulating valve for chemical equipment proposed by the present invention;

[0018] Figure 2 is a cross-sectional view of a gas regulating valve for chemical equipment proposed by the present invention;

[0019] Figure 3 is an enlarged view of the rotating shaft part of a gas regulating valve for chemical equipment proposed by the present invention;

[0020] Figure 4 is a schematic structural diagram of a buffer mechanism of a gas regulating valve for chemical equipment proposed by the present invention;

[0021] Figure 5 is a top view of the rotating shaft part of a gas regulating valve for chemical equipment proposed by the present invention;

[0022] Figure 6 is a side view of the hanging plate part of a gas regulating valve for chemical equipment proposed by the present invention;

[0023] Figure 7 is a side view of a spacer ring of a gas regulating valve for chemical equipment proposed by the present invention.

[0024] In the figure: 1 base, 2 mounting frame, 3 control chamber, 4 intake pipe, 5 outlet pipe, 6 connector, 7 mounting plate, 8 sealing spring, 9 adjusting plate, 10 insertion block, 11 insertion slot, 12 rotating shaft, 13 rotating handle, 14 spacer ring, 15 air extraction ring, 16 air extraction block, 17 air extraction spring, 18 air extraction plate, 19 air extraction strip, 20 external connection hole, 21 air outlet hole, 22 intake ring, 23 intake block, 24 intake spring, 25 intake plate, 26 intake strip, 27 suction hole, 28 intake hole, 29 support block, 30 support sleeve, 31 support spring, 32 oil tank, 33 oil extraction pipe, 34 buffer spring, 35 slider, 36 slide bar, 37 support plate, 38 hanging plate, 39 hanging block, 40 bladder. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] The following embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention.

[0026] Embodiment

[0027] Refer to Figure 1-7, a gas regulating valve for chemical equipment, comprising a base 1 and a mounting frame 2. The base 1 is connected to the bottom of the mounting frame 2 through a buffer mechanism. The upper end of the mounting frame 2 is fixed with a regulation chamber 3. The side wall of the mounting frame 2 is provided with an inlet pipe 4 and an outlet pipe 5 that are connected to the regulation chamber 3. Connectors 6 are installed at the ends of the inlet pipe 4 and the outlet pipe 5. A mounting plate 7 is fixed to the inner wall of the regulation chamber 3. The bottom of the mounting plate 7 is connected to an adjusting plate 9 through a sealing spring 8. A plug 10 is fixed to the bottom of the adjusting plate 9. A slot 11 is opened at the upper end of the mounting frame 2, and the position of the slot 11 corresponds to that of the plug 10. An air bag 40 is fixed to the upper end of the adjusting plate 9. The air bag 40 is filled with an evaporation liquid, which can be a mixed liquid. Different liquids evaporate and gasify at different temperatures, so that the air bag 40 expands an appropriate amount at the required temperature. An adjusting mechanism is fixed to the upper end of the mounting plate 7.

[0028] The adjusting mechanism consists of a driving component, an upward adjusting component, and a downward adjusting component. A pair of spacer rings 14 are fixed to the upper end of the mounting plate 7. The driving component includes a rotating shaft 12 rotatably connected to the upper end of the mounting plate 7. The upper end of the rotating shaft 12 penetrates through the top of the regulation chamber 3 and is fixed with a rotating handle 13.

[0029] The upward adjusting component includes an air extraction ring 15 rotatably connected to the side wall of the rotating shaft 12 through a one-way bearing. An air extraction block 16 is fixed to the side wall of the air extraction ring 15. The inner wall of the regulation chamber 3 is connected to an air extraction plate 18 through an air extraction spring 17. An air extraction strip 19 is fixed to the side wall of the air extraction plate 18. The air extraction strip 19 abuts against the air extraction block 16. The air extraction plate 18 slides in a sealed manner with both the regulation chamber 3 and the mounting plate 7.

[0030] An external connection hole 20 is penetrated and opened at the top of the regulation chamber 3. An air outlet hole 21 is penetrated and opened at the upper end of the mounting plate 7. The position of the air outlet hole 21 corresponds to that of the external connection hole 20. Check valves are provided inside both the air outlet hole 21 and the external connection hole 20. The rotating shaft 12 can only drive the air extraction ring 15 to rotate against external forces during forward rotation, while during reverse rotation, the air extraction ring 15 can rotate relative to the rotating shaft 12. Therefore, the inlet and outlet of the equipment do not occur simultaneously, and the up and down positions can be adjusted by forward and reverse rotation.

[0031] The downward adjusting component includes an air inlet ring 22 rotatably connected to the side wall of the rotating shaft 12 through a one-way bearing. An air inlet block 23 is fixed to the side wall of the air inlet ring 22. The inner wall of the regulation chamber 3 is connected to an air inlet plate 25 through an air inlet spring 24. An air inlet strip 26 is fixed to the side wall of the air inlet plate 25. The air inlet strip 26 abuts against the air inlet block 23. The air inlet plate 25 slides in a sealed manner with both the regulation chamber 3 and the mounting plate 7.

[0032] An air inlet hole 28 is penetrated and opened at the upper end of the mounting plate 7, and a suction hole 27 is penetrated and opened on the side wall of the air inlet plate 25. The air inlet hole 28 corresponds to the position of the suction hole 27. The air inlet plate 25 abuts against the corresponding side partition ring 14. Check valves are provided inside both the air inlet hole 28 and the suction hole 27. Since the sealing spring 8 is always in a compressed state, external air always has a tendency to enter the space between the mounting plate 7 and the adjusting plate 9. However, under the restriction of the air inlet spring 24, the air inlet plate 25 abuts tightly against the partition ring 14, resulting in the closure of the suction hole 27 and preventing external air from entering, which can ensure the stability of the position of the adjusting plate 9. Therefore, when the device is waiting to be used, it is in a partitioned and closed state. By reducing the air volume between the mounting plate 7 and the adjusting plate 9, the adjusting plate 9 moves upward under the action of air pressure, thereby gradually adjusting the flow rate. The compressed sealing spring 8 can also reduce the impact of fluid transfer and the influence on the flow rate.

[0033] The buffer mechanism includes a support sleeve 30 fixed to the upper end of the base 1. A support block 29 is fixed to the bottom of the mounting bracket 2. The support block 29 is hermetically and slidably connected to the inner wall of the support sleeve 30. A support spring 31 is jointly fixed to the upper end of the support block 29 and the base 1. An oil tank 32 is fixed to the outer wall of the support sleeve 30. A suction pipe 33 connected to the inside of the support sleeve 30 is inserted into the side wall of the oil tank 32. A slider 35 is hermetically and slidably connected to the inner wall of the oil tank 32. A buffer spring 34 is jointly fixed to the slider 35 and the inner bottom of the oil tank 32. A slide rod 36 is fixed to the upper end of the slider 35. A support plate 37 is fixed to the upper end of the slide rod 36. A hanging plate 38 is fixed to the side wall of the support plate 37. A hanging block 39 hooked to the hanging plate 38 is fixed to the side wall of the mounting bracket 2;

[0034] In the present invention, during actual use, the air inlet pipe 4 and the air outlet pipe 5 are connected to an external air supply pipeline through a connector 6. The gas enters the lower part of the regulation chamber 3 through the air inlet pipe 4 and is discharged through the air outlet pipe 5. The permeability of the lower region of the regulation chamber 3 determines the gas supply rate. By adjusting the height of the adjusting plate 9, the lower space and the actual blocking area of the insertion block 10 can be adjusted, and the passing rate can be effectively adjusted;

[0035] When adjustment is required, rotate the turning handle 13, so that the rotating shaft 12 rotates. The rotating shaft 12 drives the air extraction ring 15 and the air inlet ring 22 to rotate, so that the air extraction block 16 and the air inlet block 23 rotate. Due to the existence of the one-way bearing, the air extraction block 16 and the air inlet block 23 show different states when they encounter the air extraction strip 19 and the air inlet strip 26 respectively;

[0036] When the adjusting plate 9 is lowered when inflation is required, air needs to be supplied between the mounting plate 7 and the adjusting plate 9, so that the adjusting plate 9 is not affected by air pressure and moves downward under the action of the sealing spring 8. In this state, when the air intake block 23 contacts the air intake strip 26, it is restricted by the one-way bearing, and there is sufficient force between the air intake ring 22 and the rotating shaft 12, so that the air intake block 23 can push the air intake strip 26 to move. However, the air extraction block 16 is different. The air extraction ring 15 can rotate relative to the rotating shaft 12 downward, so that the air extraction block 16 is blocked by the air extraction plate 18 and cannot continue to rotate. The air extraction plate 18 will not move. Therefore, the air intake plate 25 will reciprocate, while the air extraction plate 18 will remain stationary. The reciprocating movement of the air intake plate 25 and the intermittent opening of the air intake holes 27 will cause the external air flow to continuously transfer and enter the space between the adjusting plate 9 and the mounting plate 7, thus completing the downward adjustment of the adjusting plate 9;

[0037] When needed, reverse the rotating shaft 12 to exchange the movement states of the air extraction plate 18 and the air intake plate 25, and the upward adjustment of the adjusting plate 9 can be completed, that is, the state shown in the figure;

[0038] In case of high-temperature disasters such as fire, the whole device will be in a high-temperature state, which will affect the performance of the sealing components of the equipment. In this state, the evaporation liquid inside the bladder 40 absorbs heat and vaporizes, so that the bladder 40 expands, and then changes the air pressure value between the mounting plate 7 and the adjusting plate 9, so that the adjusting plate 9 can overcome the remaining small air pressure difference and quickly move downward under the action of the sealing spring 8, and then the plug 10 is inserted into the slot 11, and the adjusting plate 9 abuts against the upper end of the mounting frame 2, pressing and sealing the air inlet pipe 4 and the air outlet pipe 5;

[0039] The plug 10 can cut off the connection between the air inlet pipe 4 and the air outlet pipe 5, thus avoiding continuous external air supply, stopping air supply first in the face of a high-temperature environment, and completely closing and blocking according to the change of the environmental temperature, avoiding leakage due to damage of the seal. The evaporation amount of the evaporation liquid inside the bladder 40 also increases with the increase of temperature. Therefore, the downward displacement of the adjusting plate 9 is different at different temperatures, and by changing the type of evaporation liquid, the triggering temperature can be regulated;

[0040] When there is impact and jitter during the air transportation process, the mounting frame 2 will shake. When the mounting frame 2 moves downward, the support block 29 will be buffered by the support spring 31, reducing the moving distance and maintaining the stability of the equipment. At the same time, it pushes the hydraulic oil inside the support sleeve 30 to enter the oil tank 32, making the support plate 37 move upward, so that the support plate 37 can further support the mounting frame 2 and improve the stability of the equipment;

[0041] When the mounting bracket 2 jitters upward, the support block 29 also moves upward, thereby extracting the hydraulic oil inside the oil tank 32, causing the support plate 37 to move downward. The downward movement of the support plate 37 will drive the hanging plate 38 to move downward, and the hanging plate 38 will hook the hanging block 39 to move downward, thereby applying a downward force to the mounting bracket 2 to keep the mounting bracket 2 stable and improve the stability of the equipment.

[0042] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. A gas control valve for chemical equipment, comprising a base and a mounting bracket, characterized in that, The base is connected to the bottom of the mounting frame through a buffer mechanism. A control chamber is fixed at the upper end of the mounting frame. An air inlet pipe and an air outlet pipe that are connected to the control chamber are installed on the side wall of the mounting frame. Connectors are installed at the ends of the air inlet pipe and the air outlet pipe. A mounting plate is fixed on the inner wall of the control chamber. An adjusting plate is connected to the bottom of the mounting plate through a sealing spring. A plug is fixed to the bottom of the adjusting plate. A slot is opened at the upper end of the mounting frame, and the slot corresponds to the position of the plug. An air bag is fixed to the upper end of the adjusting plate. An adjusting mechanism is fixed to the upper end of the mounting plate; The adjusting mechanism consists of a driving component, an upward adjusting component, and a downward adjusting component. A pair of spacer rings are fixed to the upper end of the mounting plate. The driving component includes a rotating shaft rotatably connected to the upper end of the mounting plate. The upper end of the rotating shaft penetrates through the top of the control chamber and is fixed with a rotating handle; The upward adjusting component includes an air extraction ring rotatably connected to the side wall of the rotating shaft through a one-way bearing. An air extraction block is fixed to the side wall of the air extraction ring. An air extraction plate is connected to the inner wall of the control chamber through an air extraction spring. An air extraction strip is fixed to the side wall of the air extraction plate. The air extraction strip abuts against the air extraction block. The air extraction plate is hermetically slidable with respect to the control chamber and the mounting plate; The downward adjusting component includes an air inlet ring rotatably connected to the side wall of the rotating shaft through a one-way bearing. An air inlet block is fixed to the side wall of the air inlet ring. An air inlet plate is connected to the inner wall of the control chamber through an air inlet spring. An air inlet strip is fixed to the side wall of the air inlet plate. The air inlet strip abuts against the air inlet block. The air inlet plate is hermetically slidable with respect to the control chamber and the mounting plate.

2. The gas regulating valve for chemical equipment according to claim 1, wherein An external connection hole is penetrated and opened at the top of the control chamber. An air outlet hole is penetrated and opened at the upper end of the mounting plate. The air outlet hole corresponds to the position of the external connection hole. Check valves are provided inside the air outlet hole and the external connection hole.

3. The gas regulating valve for chemical equipment according to claim 1, characterized in that, An air inlet hole is penetrated and opened at the upper end of the mounting plate. An air suction hole is penetrated and opened on the side wall of the air inlet plate. The air inlet hole corresponds to the position of the air suction hole. The air inlet plate abuts against the corresponding side spacer ring. Check valves are provided inside the air inlet hole and the air suction hole.

4. The gas regulating valve for chemical equipment according to claim 1, characterized in that, The buffer mechanism includes a support sleeve fixed to the upper end of the base. A support block is fixed to the bottom of the mounting frame. The support block is hermetically slidably connected to the inner wall of the support sleeve. A support spring is jointly fixed to the support block and the upper end of the base. An oil tank is fixed to the outer wall of the support sleeve. An oil extraction pipe that is connected to the inside of the support sleeve is inserted into the side wall of the oil tank. A slider is hermetically slidably connected to the inner wall of the oil tank. A buffer spring is jointly fixed to the slider and the inner bottom of the oil tank. A sliding rod is fixed to the upper end of the slider. A support plate is fixed to the upper end of the sliding rod. A hanging plate is fixed to the side wall of the support plate. A hanging block that is hooked to the hanging plate is fixed to the side wall of the mounting frame.

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