CN212657339U - High-pressure gas pneumatic switch valve - Google Patents
High-pressure gas pneumatic switch valve Download PDFInfo
- Publication number
- CN212657339U CN212657339U CN202021802517.XU CN202021802517U CN212657339U CN 212657339 U CN212657339 U CN 212657339U CN 202021802517 U CN202021802517 U CN 202021802517U CN 212657339 U CN212657339 U CN 212657339U
- Authority
- CN
- China
- Prior art keywords
- valve
- valve body
- valve core
- pressure gas
- cylinder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Fluid-Driven Valves (AREA)
Abstract
The utility model relates to a high-pressure gas pneumatic switch valve, including cylinder cap, cylinder, preceding valve body, back valve gap, the cylinder cap links to each other with the cylinder, the cylinder links to each other with preceding valve body, preceding valve body links to each other with the back valve body, back valve body links to each other with the back valve gap. The high-pressure gas pneumatic switch valve has small valve volume and high pressure resistance, and the maximum pressure can reach 42 MPa; simple structure, reliable action, long service life and wide application range.
Description
Technical Field
The utility model relates to a gas pipeline field, specially adapted high-pressure gas steel bottle fills dress field, concretely relates to pneumatic ooff valve of high-pressure gas.
Background
Along with the development of scientific technology, the requirements on the automation degree and the safety of a factory are higher and higher, particularly in the field of high-pressure gas steel cylinder filling, the existing high-pressure gas pneumatic switch valve is a basic condition for realizing the automatic filling of high-pressure steel cylinders, but products in the field are all manual valves in China, and have large volume and high cost; if the method completely depends on import, the problems of long purchasing period and high cost can be caused, and a new product with high automation degree, safety and stability is urgently needed to fill the domestic blank along with the development of the domestic gas industry.
SUMMERY OF THE UTILITY MODEL
The utility model discloses to prior art's not enough, provide a high-pressure gas pneumatic switch valve, this utility model has compensatied the blank in internal this field.
The utility model discloses a realize through following technical scheme:
the utility model provides a high-pressure gas pneumatic switch valve, includes cylinder cap, cylinder barrel, preceding valve body, back valve gap, the cylinder cap links to each other with the cylinder barrel, the cylinder barrel links to each other with preceding valve body, preceding valve body links to each other with back valve body, back valve body links to each other with back valve gap.
Preferably, the cylinder cover, the cylinder barrel, the front valve body, the rear valve body and the rear valve cover are designed to be hollow, a valve core limiting bolt is arranged at the center of the cylinder cover and connected with a switching nut, a valve core position indicating shaft is arranged at the center of the valve core limiting bolt, the switching nut is connected with a center shaft of a piston in the cylinder barrel, a spring is sleeved outside the switching nut and abuts against the outer wall of the piston, a gland is arranged in the front valve body, a valve seat is arranged at the joint of the front valve body and the rear valve body, the piston is connected with the valve core towards the right, the valve core sequentially penetrates through the gland and the valve seat and extends into the rear valve cover through the rear valve body, a gas cabin is arranged between the piston and the gland, a first vent hole is arranged in the front valve body, a second vent hole is arranged in the rear valve body, and when, or the second vent hole is used as a gas outlet, the first vent hole is used as a gas inlet, a safety valve and a power gas source joint are arranged on the opposite surface of the front valve body vent hole, and the safety valve is connected with the gas bin.
Preferably, the piston is externally provided with a piston guide seal.
Preferably, a first valve core guide sleeve, a second valve core guide sleeve, a first valve core sealing element and a second valve core sealing element are respectively sleeved on the left and the right of the valve core, the first valve core guide sleeve is connected with the first valve core sealing element and is positioned in the front valve body, and the second valve core guide sleeve is connected with the second valve core sealing element and is positioned in the rear valve body.
Preferably, a valve core sealing gasket is arranged at the position where the valve seat is contacted with the valve core.
Preferably, one end of the rear valve cover, which is far away from the rear valve body, is provided with a groove structure.
Preferably, the cylinder cover, the cylinder barrel, the front valve body, the rear valve body and the rear valve cover are made of brass, and the valve core is made of stainless steel or nickel alloy.
The utility model has the advantages that: the high-pressure gas pneumatic switch valve has small valve volume and high pressure resistance, and the maximum pressure can reach 42 MPa; the structure is simple, the action is reliable, the service life is long, and the application range is wide; the valve body part is made of brass, the copper content is lower than 70%, the valve core is made of stainless steel or nickel alloy, and the valve core can be suitable for non-corrosive gas including oxygen.
Drawings
Fig. 1 is an external schematic view of a high-pressure gas pneumatic switch valve of the present invention;
fig. 2 is a sectional view of the pneumatic switch valve of the present invention;
fig. 3 is a schematic structural view of the cylinder head of the present invention;
fig. 4 is a schematic structural view of the cylinder tube of the present invention;
fig. 5 is a schematic structural view of the front valve body of the present invention;
fig. 6 is a cross section of the front valve body of the present invention;
fig. 7 is a schematic structural view of the rear valve body of the present invention;
fig. 8 is a cross section of the rear valve body of the present invention;
fig. 9 is a schematic structural view of the rear valve cover of the present invention;
fig. 10 is a schematic view of the valve core connection structure of the switching valve of the present invention.
Shown in the figure:
1. the air cylinder comprises an air cylinder barrel, 2, a power air source connector, 3, a safety valve, 4, an air cylinder cover, 5, a valve core limiting bolt, 6, a spring, 7, a piston, 8, a piston guide sealing piece, 9, an air bin, 10, a gland, 11, a first valve core guide sleeve, 12, a first valve core sealing piece, 13, a front valve body, 14, a valve core, 15, a valve core sealing pad, 16, a valve seat, 17, a rear valve body, 18, a second air vent, 19, a second valve core sealing piece, 20, a second valve core guide sleeve, 21, a rear valve cover, 22 and a first air vent.
Detailed Description
In order to clearly illustrate the technical features of the present solution, the present solution is explained below by way of specific embodiments.
Referring to fig. 1, the high-pressure gas pneumatic switch valve comprises a cylinder cover 4, a cylinder barrel 1, a front valve body 13, a rear valve body 17 and a rear valve cover 21, wherein the cylinder cover 4 is connected with the cylinder barrel 1, the cylinder barrel 1 is connected with the front valve body 13, the front valve body 13 is connected with the rear valve body 17, and the rear valve body 17 is connected with the rear valve cover 21. The cylinder cover 4, the cylinder barrel 1, the front valve body 13, the rear valve body 17 and the rear valve cover 21 are made of brass, and the valve core 14 is made of stainless steel or nickel alloy. The material meets the national standard requirements and is suitable for non-corrosive gases including oxygen. One end of the rear valve cover 21, which is far away from the rear valve body 17, is provided with a groove structure, the design increases the overall heat exchange area of the valve, and the capacity of the valve for coping with temperature changes is improved.
Referring to fig. 2-10, the cylinder head 4, cylinder barrel 1, front valve body 13, rear valve body 17 and rear valve cover 21 are hollow, a valve core limiting bolt 5 is arranged at the center of the cylinder cover 4, the valve core limiting bolt 5 is connected with a switching nut, a valve core 14 position indicating shaft is arranged at the center of the valve core limiting bolt 5, the adapter nut is connected with the middle shaft of the piston 7 in the cylinder barrel 1, a spring 6 is sleeved outside the switching nut, the spring 6 props against a piston 7, a piston guide sealing piece 8 is arranged outside the piston 7, a gland 10 is arranged in the front valve body 13, a valve seat 16 is arranged at the joint of the front valve body 13 and the rear valve body 17, the piston 7 is connected with a valve core 14 towards the right, the valve core 14 sequentially passes through the gland 10 and the valve seat 16, the rear valve body 17 extends into the rear valve cover 21, and a valve core sealing gasket 15 is arranged at the contact position of the valve seat 16 and the valve core 14. The gas storage tank 9 is arranged between the piston 7 and the gland 10, the front valve body 13 is provided with a first vent hole 22, the rear valve body 17 is provided with a second vent hole 18, when the first vent hole 22 is used as a gas outlet, the second vent hole 18 is used as a gas inlet, or the second vent hole 18 is used as a gas outlet, the first vent hole 22 is used as a gas inlet, the safety valve 3 and the power gas source connector 2 are arranged on the opposite surface of the surface where the vent hole of the front valve body 13 is located, and the safety valve 3 is connected with the gas storage tank 9.
The left side and the right side of the valve core 14 are respectively sleeved with a first valve core guide sleeve 11, a second valve core guide sleeve 20, a first valve core sealing element 12 and a second valve core sealing element 19, the first valve core guide sleeve 11 is connected with the first valve core sealing element 12 and is positioned in the front valve body 13, and the second valve core guide sleeve 20 is connected with the second valve core sealing element 19 and is positioned in the rear valve body 17.
The utility model discloses a theory of operation: the utility model discloses a high-pressure gas pneumatic switch valve explained, power air supply's trachea is connected power air supply and is connected 2, under usual state, because under the effect of spring 6, the valve is in the closed condition, connects 2 entering gas storehouse 9 when power air supply passes through power air supply, and under the promotion of atmospheric pressure, piston 7 drives case 14 and removes to 4 directions of cylinder cap, has realized the intercommunication between first blow vent 22 and the second blow vent 18, and the valve is in the open mode this moment. The opening size of the valve is controlled by adjusting the position of the valve core limiting bolt 5, so that the on-off of the high-pressure gas in the pipeline is controlled.
The gas bin 9 of the high-pressure gas pneumatic switch valve is connected with the safety valve 3, and when the pressure of the gas bin 9 is too high, the safety valve 3 is automatically opened to discharge redundant gas, so that the cylinder barrel 1 of the cylinder is protected.
Of course, the above description is not limited to the above examples, and technical features of the present invention that are not described in the present application may be implemented by or using the prior art, and are not described herein again; the above embodiments and drawings are only used for illustrating the technical solutions of the present invention and are not intended to limit the present invention, and the present invention has been described in detail with reference to the preferred embodiments, and those skilled in the art should understand that changes, modifications, additions or substitutions made by those skilled in the art within the spirit of the present invention should also belong to the protection scope of the claims of the present invention.
Claims (8)
1. A high-pressure gas pneumatic switch valve is characterized in that: including cylinder cap (4), cylinder (1), preceding valve body (13), back valve body (17), back valve gap (21), cylinder cap (4) link to each other with cylinder (1), cylinder (1) links to each other with preceding valve body (13), preceding valve body (13) link to each other with back valve body (17), back valve body (17) link to each other with back valve gap (21).
2. The high-pressure gas pneumatic switching valve according to claim 1, wherein: the air cylinder cover (4), the air cylinder barrel (1), the front valve body (13), the rear valve body (17) and the rear valve cover (21) are designed in a hollow mode, a valve core limiting bolt (5) is arranged at the center of the air cylinder cover (4), the valve core limiting bolt (5) is connected with a switching nut, the switching nut is connected with a center shaft of a piston (7) in the air cylinder barrel (1), a spring (6) is sleeved outside the switching nut, the spring (6) abuts against the outer wall of the piston (7), a gland (10) is arranged in the front valve body (13), a valve seat (16) is arranged at the joint of the front valve body (13) and the rear valve body (17), the piston (7) is connected with the valve core (14) in a right-turning mode, the valve core (14) sequentially penetrates through the gland (10) and the valve seat (16) and extends into the rear valve cover (21) through the rear valve body (17), and an air chamber (9, preceding valve body (13) are equipped with first blow-off port (22), are equipped with second blow-off port (18) on back valve body (17), and when first blow-off port (22) as the gas outlet, then second blow-off port (18) are as the air inlet, perhaps second blow-off port (18) are as the gas outlet, then first blow-off port (22) are as the air inlet, be equipped with relief valve (3) and power air supply joint (2) on the relative face of preceding valve body (13) blow-off port place face, relief valve (3) link to each other with gas storehouse (9).
3. The high-pressure gas pneumatic switching valve according to claim 2, wherein: and a piston guide sealing piece (8) is arranged outside the piston (7).
4. The high-pressure gas pneumatic switching valve according to claim 2, wherein: the left side and the right side of the valve core (14) are respectively sleeved with a first valve core guide sleeve (11), a second valve core guide sleeve (20), a first valve core sealing element (12) and a second valve core sealing element (19), the first valve core guide sleeve (11) is connected with the first valve core sealing element (12) and is positioned in the front valve body (13), and the second valve core guide sleeve (20) is connected with the second valve core sealing element (19) and is positioned in the rear valve body (17).
5. The high-pressure gas pneumatic switching valve according to claim 2, wherein: and a valve core sealing gasket (15) is arranged at the contact position of the valve seat (16) and the valve core (14).
6. The high-pressure gas pneumatic switching valve according to claim 1, wherein: and one end of the rear valve cover (21) far away from the rear valve body (17) is provided with a groove structure.
7. The high-pressure gas pneumatic switching valve according to claim 2, wherein: and a valve core (14) position indicating shaft is arranged in the center of the valve core limiting bolt (5).
8. The high-pressure gas pneumatic switching valve according to claim 2, wherein: the cylinder cover (4), the cylinder barrel (1), the front valve body (13), the rear valve body (17) and the rear valve cover (21) are made of brass, and the valve core (14) is made of stainless steel or nickel alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021802517.XU CN212657339U (en) | 2020-08-26 | 2020-08-26 | High-pressure gas pneumatic switch valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021802517.XU CN212657339U (en) | 2020-08-26 | 2020-08-26 | High-pressure gas pneumatic switch valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212657339U true CN212657339U (en) | 2021-03-05 |
Family
ID=74769874
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021802517.XU Active CN212657339U (en) | 2020-08-26 | 2020-08-26 | High-pressure gas pneumatic switch valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212657339U (en) |
-
2020
- 2020-08-26 CN CN202021802517.XU patent/CN212657339U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN212657339U (en) | High-pressure gas pneumatic switch valve | |
| CN210739436U (en) | Eccentric half ball valve of fluorine lining high-risk medium | |
| CN112066073A (en) | High-pressure gas pneumatic switch valve | |
| CN212657338U (en) | Pneumatic regulating valve for high-pressure gas | |
| CN102797695B (en) | Cyclic protection control system and cyclic protection control method for mechanical seal | |
| CN218235636U (en) | High-voltage energy accumulator and integrated block connecting structure | |
| CN208474540U (en) | A kind of longitudinal single weld seam all-welded ball valve of spherical | |
| CN201096198Y (en) | High purity high pressure gas valve | |
| CN214063975U (en) | Poppet valve packing chamber sealing structure | |
| CN213018329U (en) | Pneumatic type pipeline sealing actuator | |
| CN213332517U (en) | Elastic sealing device for fixed ball valve | |
| CN207796167U (en) | Two-bit triplet reversal valve | |
| CN103671935A (en) | Special valve for multiple sealing structure chlorine conveying pipeline | |
| CN112066074A (en) | Pneumatic regulating valve for high-pressure gas | |
| CN208565895U (en) | A kind of dock Leakless valve | |
| CN208058017U (en) | A kind of gas control threeway angle valve | |
| CN213776494U (en) | High-temperature-resistant safety valve | |
| CN214466377U (en) | Combination valve body suitable for safe pressure relief operation of sampling steel bottle | |
| CN218408651U (en) | Built-in swash plate type check valve | |
| CN216952188U (en) | Safe explosion-proof self sealss rotary compensator | |
| CN219510602U (en) | Filling and emptying integrated valve for low-temperature liquefied gas | |
| CN221762769U (en) | Inflating sealing type gas valve packing gland | |
| CN213451720U (en) | Novel valve | |
| CN220622938U (en) | Throttle two-stage pressure reducing valve structure | |
| CN109163104A (en) | Saturated vapor valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |