CN219139924U - Piston type hydrogen valve - Google Patents
Piston type hydrogen valve Download PDFInfo
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- CN219139924U CN219139924U CN202222575978.3U CN202222575978U CN219139924U CN 219139924 U CN219139924 U CN 219139924U CN 202222575978 U CN202222575978 U CN 202222575978U CN 219139924 U CN219139924 U CN 219139924U
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Abstract
The utility model discloses a piston type hydrogen valve, which comprises a valve body, wherein a first mounting groove and a second mounting groove are respectively arranged on two sides of the valve body, the first mounting groove is communicated with the second mounting groove through a first channel in the valve body, an air inlet and an air outlet are respectively arranged on two ends of the valve body, the air inlet is communicated with the first channel through a second channel in the valve body, and the air outlet is communicated with the first mounting groove through a third channel in the valve body; a switch valve seat is arranged in the first mounting groove, a threaded groove and a through groove which are communicated are formed in the switch valve seat, a switch valve rod is arranged in the through groove, the switch valve rod is in threaded connection with the threaded groove, and one end of the switch valve rod, which is positioned in the first mounting groove, is clamped with an insert corresponding to the first channel; a safety valve seat is arranged in the second mounting groove, a pressure relief channel is arranged on the safety valve seat corresponding to the first channel, and one end of the safety valve seat, which is positioned in the second mounting groove, is sequentially connected with an explosion-proof piece and an annular sealing gasket. The utility model can ensure stable output of hydrogen without leakage and can avoid explosion accidents caused by over high air pressure.
Description
Technical Field
The utility model belongs to the field of valve equipment, and particularly relates to a piston type hydrogen valve.
Background
The valve is a pipeline accessory for opening and closing a pipeline, controlling flow direction, adjusting and controlling parameters, temperature, pressure and flow of a conveying medium, and can be divided into a shutoff valve, a check valve, a regulating valve and the like according to the functions of the valve, and the valve is a control part in a fluid conveying system and has the functions of stopping, adjusting, guiding, preventing backflow, stabilizing pressure, splitting or overflow pressure relief and the like.
The traditional hydrogen valve for hydrogen transportation has a single sealing structure, is easy to leak after long-term use, and cannot meet the hydrogen transportation requirement; in addition, the traditional hydrogen valve lacks a pressure relief mechanism, so that explosion accidents are easily caused once the air pressure in the pipe exceeds the expected air pressure.
Disclosure of Invention
The utility model aims to provide a piston type hydrogen valve which can ensure stable output of hydrogen and no leakage and can avoid explosion accidents caused by overhigh air pressure.
In order to achieve the purpose, the piston type hydrogen valve comprises a valve body, wherein a first mounting groove and a second mounting groove are respectively formed in two sides of the valve body, the first mounting groove is communicated with the second mounting groove through a first channel in the valve body, an air inlet and an air outlet are respectively formed in two ends of the valve body, the air inlet is communicated with the first channel through a second channel in the valve body, and the air outlet is communicated with the first mounting groove through a third channel in the valve body;
a switch valve seat is arranged in the first mounting groove, a thread groove and a through groove which are communicated are formed in the switch valve seat, a switch valve rod is arranged in the through groove and is in threaded connection with the thread groove, and one end of the switch valve rod positioned in the first mounting groove is clamped with an insert corresponding to the first channel;
the second mounting groove is internally provided with a safety valve seat, the safety valve seat is provided with a pressure relief channel corresponding to the first channel, and one end of the safety valve seat, which is positioned in the second mounting groove, is sequentially connected with an explosion-proof piece and an annular sealing gasket.
As a further scheme of the utility model: the first mounting groove is internally provided with a positioning protrusion which is positioned at one position of the channel and faces the switch valve rod, and the insert can completely cover the positioning protrusion.
As a further scheme of the utility model: and a plurality of O-shaped rings are sleeved on the part, located in the through groove, of the switch valve rod.
As a further scheme of the utility model: and a tetrafluoro gasket is arranged at the joint of the switch valve seat and the valve body.
As a further scheme of the utility model: one end of the switch valve rod, which is positioned outside the switch valve seat, is sleeved with an adjusting handle, and the adjusting handle is fixedly connected with the switch valve rod through a fixing bolt.
Compared with the prior art, the utility model has the following beneficial effects:
the connection of the switch valve rod and the switch valve seat forms a piston type adjusting mode, and the control of the gas circuit switch is realized by controlling the position relation between the insert and the positioning bulge;
the connection part of the switch valve seat and the valve body is provided with a tetrafluoro gasket, the switch valve rod is sleeved with an O-shaped ring, and the O-shaped ring is matched with the insert to form a multistage sealing structure, so that the sealing effect of hydrogen transportation can be ensured;
through connecting the safety valve seat that sets up on the valve body, utilize pressure release passageway and explosion-proof piece on the safety valve seat, can avoid inside atmospheric pressure too big to cause the explosion accident to take place.
Drawings
Fig. 1 is a schematic diagram of a closed state structure of a piston type hydrogen valve.
Fig. 2 is a schematic diagram showing an open state structure of the piston type hydrogen valve.
In the figure: 1. the valve body, 2, the second mounting groove, 3, the safety valve, 4, the pressure relief channel, 5, the explosion-proof piece, 6, the annular sealing gasket, 7, the first channel, 8, the second channel, 9, the air inlet, 10, the positioning protrusion, 11, the insert, 12 and the O-shaped ring, 13, a tetrafluoro gasket, 14, a switch valve seat, 15, a switch valve rod, 16, an adjusting handle, 17, a fixing bolt, 18, a thread groove, 19, a through groove, 20, a first mounting groove, 21, a third channel, 22 and an air outlet.
Detailed Description
The utility model is further described below with reference to the accompanying drawings.
As shown in fig. 1 and 2, the piston type hydrogen valve comprises a valve body 1, wherein a first mounting groove 20 and a second mounting groove 2 are respectively arranged on two sides of the valve body 1, the first mounting groove 20 and the second mounting groove 2 are communicated through a first channel 7 in the valve body 1, an air inlet 9 and an air outlet 22 are respectively arranged on two ends of the valve body 1, the air inlet 9 is communicated with the first channel 7 through a second channel 8 in the valve body 1, and the air outlet 22 is communicated with the first mounting groove 20 through a third channel 21 in the valve body 1;
the first mounting groove 20 is internally provided with a switch valve seat 14, the switch valve seat 14 is internally provided with a threaded groove 18 and a through groove 19 which are communicated, the through groove 19 is internally provided with a switch valve rod 15, the switch valve rod 15 is in threaded connection with the threaded groove 18, one end of the switch valve rod 15 positioned in the first mounting groove 20 is correspondingly clamped with the insert 11 corresponding to the first channel 7, the insert 11 is driven to move by the switch valve rod 15, a switch effect can be formed on the first channel 7, and the switch valve rod 15 is movably adjusted in the through groove 19 by utilizing a threaded connection relationship to form a piston type driving effect;
install relief valve 3 seats in the mounting groove two 2, corresponding passageway one 7 is equipped with pressure release passageway 4 on the relief valve 3 seats, and the one end in the mounting groove two 2 has been connected gradually explosion-proof piece 5 and annular sealing pad 6, and annular sealing pad 6 protects the sealing performance that relief valve 3 connects, and explosion-proof piece 5 can be broken when inside atmospheric pressure is too big, then releases pressure through pressure release passageway 4 to avoid causing the explosion accident.
In order to enable the insert 11 to better block the first channel 7 and achieve the switching effect, the positioning protrusion 10 is arranged in the first mounting groove 20, located at the first channel 7, towards the switch valve rod 15, the insert 11 can completely cover the positioning protrusion 10, the insert 11 can be tightly attached to the positioning protrusion 10 under the driving of the switch valve rod 15, the blocking effect on the first channel 7 is formed, and the sealing effect is guaranteed.
In order to further improve the connection tightness between the switch valve rod 15 and the through groove 19, a plurality of O-shaped rings 12 are sleeved on the part, located in the through groove 19, of the switch valve rod 15, grooves are formed in the switch valve rod 15, the O-shaped rings 12 are sleeved in the grooves, and a multistage sealing effect is formed by utilizing the O-shaped rings 12 distributed at intervals, so that the switch valve rod 15 has a piston type working effect.
In order to ensure the connection tightness between the switch valve seat 14 and the valve body 1, the connection part of the switch valve seat 14 and the valve body 1 is provided with a tetrafluoro gasket 13, so that the overall sealing effect is improved, and the leakage of internal gas is avoided.
For more convenient regulation to switch valve rod 15, make it reach the switching effect, the one end that is located the switch valve seat 14 on the switch valve rod 15 has cup jointed adjustment handle 16, and adjustment handle 16 passes through fixing bolt 17 and is connected fixedly with switch valve rod 15, through adjustment handle 16 can be convenient rotation adjustment switch valve rod 15, utilizes the threaded connection of switch valve rod 15 and thread groove 18, controls its removal regulation in logical groove 19, forms the switching action to passageway one 7 through mold insert 11.
The working process of the utility model comprises the following steps: when the hydrogen valve is in a closed state as shown in fig. 1, and the gas fed by the gas inlet 9 can be discharged from the gas outlet 22, the switch valve rod 15 can be rotated through the adjusting handle 16, the switch valve rod 15 is driven to move and adjust in the through groove 19 by using the threaded connection of the switch valve rod 15 and the threaded groove 18, so that the insert 11 is far away from the positioning protrusion 10, the sealing effect on the first channel 7 is relieved, and as shown in fig. 2, the gas enters through the gas inlet 9, sequentially passes through the third channel 21, the first channel 7, the first mounting groove 20 and the second channel 8 and finally is discharged through the gas outlet 22, and in the conveying process, if the internal gas pressure exceeds the preset value, the explosion-proof sheet 5 is broken, and the internal gas pressure is released through the pressure release channel 4, so that explosion accidents are avoided;
when the hydrogen valve is required to be closed, the switch valve rod 15 is rotated through the adjusting handle 16, the switch valve rod 15 is driven to move and adjust in the through groove 19 by utilizing the threaded connection of the switch valve rod 15 and the threaded groove 18, the insert 11 is attached to and pressed against the positioning protrusion 10, the sealing effect on the first channel 7 is formed, and the connection between the first channel 7 and the second channel 8 is cut off.
Claims (5)
1. The piston type hydrogen valve comprises a valve body (1), and is characterized in that a first mounting groove (20) and a second mounting groove (2) are respectively arranged on two sides of the valve body (1), the first mounting groove (20) and the second mounting groove (2) are communicated through a first channel (7) in the valve body (1), an air inlet (9) and an air outlet (22) are respectively arranged at two ends of the valve body (1), the air inlet (9) is communicated with the first channel (7) through a second channel (8) in the valve body (1), and the air outlet (22) is communicated with the first mounting groove (20) through a third channel (21) in the valve body (1);
a switch valve seat (14) is arranged in the first mounting groove (20), a threaded groove (18) and a through groove (19) which are communicated are formed in the switch valve seat (14), a switch valve rod (15) is arranged in the through groove (19), the switch valve rod (15) is in threaded connection with the threaded groove (18), and one end of the switch valve rod (15) positioned in the first mounting groove (20) is correspondingly clamped with the first channel (7) and is provided with an insert (11);
the anti-explosion device is characterized in that a safety valve (3) seat is arranged in the second mounting groove (2), a pressure release channel (4) is arranged on the safety valve (3) seat corresponding to the first channel (7), and one end of the safety valve (3) seat in the second mounting groove (2) is sequentially connected with an anti-explosion piece (5) and an annular sealing gasket (6).
2. The piston type hydrogen valve according to claim 1, wherein a positioning protrusion (10) is arranged in the first mounting groove (20) and located in the first channel (7) towards the switch valve rod (15), and the insert (11) can completely cover the positioning protrusion (10).
3. Piston type hydrogen valve according to claim 1 or 2, characterized in that the part of the switch valve rod (15) located in the through groove (19) is sleeved with a plurality of O-rings (12).
4. A piston hydrogen valve according to claim 1 or 2, characterized in that the connection of the switch valve seat (14) with the valve body (1) is provided with a tetrafluoro gasket (13).
5. The piston type hydrogen valve according to claim 1 or 2, wherein one end of the switch valve rod (15) located outside the switch valve seat (14) is sleeved with an adjusting handle (16), and the adjusting handle (16) is fixedly connected with the switch valve rod (15) through a fixing bolt (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222575978.3U CN219139924U (en) | 2022-09-28 | 2022-09-28 | Piston type hydrogen valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222575978.3U CN219139924U (en) | 2022-09-28 | 2022-09-28 | Piston type hydrogen valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219139924U true CN219139924U (en) | 2023-06-06 |
Family
ID=86560233
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222575978.3U Active CN219139924U (en) | 2022-09-28 | 2022-09-28 | Piston type hydrogen valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219139924U (en) |
-
2022
- 2022-09-28 CN CN202222575978.3U patent/CN219139924U/en active Active
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