CN219198146U - Evacuating valve - Google Patents
Evacuating valve Download PDFInfo
- Publication number
- CN219198146U CN219198146U CN202320264957.1U CN202320264957U CN219198146U CN 219198146 U CN219198146 U CN 219198146U CN 202320264957 U CN202320264957 U CN 202320264957U CN 219198146 U CN219198146 U CN 219198146U
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- valve
- vacuum
- evacuation
- valve rod
- valve body
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Abstract
The utility model provides an evacuating valve, which comprises a valve body and a valve head connected with the valve body; the valve head comprises a valve rod and a vacuum valve core sleeved on the valve rod, and a handle is arranged at one end of the valve rod, which is far away from the vacuum valve core; the valve body comprises a valve seat sleeved on the vacuum valve core, one end of the valve seat, far away from the handle, is connected with a valve body, one end of the valve body, far away from the valve seat, is connected with a vacuumizing joint in threaded connection with the vacuum valve core, and one side of the valve body is provided with a vacuumizing hose. According to the evacuation valve disclosed by the utility model, the evacuation hose is communicated with a pipeline of a vacuum system, and then the top handle is rotated to drive the vacuum valve core connected with the handle to move, so that the vacuum valve core can be lifted away from the evacuation joint, and the pipeline is evacuated.
Description
Technical Field
The utility model relates to the technical field of cryogenic liquid transportation, in particular to an evacuation valve.
Background
The evacuation valve refers to an element used to achieve a vacuum in a pipe during transportation or to seal the vacuum after the pipe has been evacuated. Cryogenic, generally referred to as the warm region range of 233K-77K. 233K (about-40 ℃) is generally the lower temperature limit that can be effectively reached by single-stage vapor compression refrigeration, and 77K (about-196 ℃) is the atmospheric boiling point temperature of liquid nitrogen. Liquefied gases having a boiling point below 120K are commonly referred to as cryogenic liquids and may be liquid nitrogen or liquid argon, hydrogen, helium, neon, methane, carbon monoxide and the like.
In the prior art, the low-temperature storage and transportation equipment needs vacuum insulation, and the equipment needs to be vacuumized, but because the equipment is often moved or transported, the equipment can be vacuumized again after one time, and the time for vacuumizing is long. The existing pipeline vacuumizing is realized through a small copper pipe, the copper pipe is cut off after the vacuum extraction is finished, and the vacuumizing mode can only be used once and can cause destructive and irreversible damage to the copper pipe.
Disclosure of Invention
The utility model aims to provide an evacuation valve which is used for solving the technical problems that a pipeline vacuumizing mode in the prior art can only be used once and cannot be operated repeatedly.
To achieve the above object, in one embodiment of the present utility model, there is provided an evacuation valve including a valve body and a valve head connected to the valve body;
the valve head comprises a valve rod and a vacuum valve core sleeved on the valve rod, and a handle is arranged at one end of the valve rod, which is far away from the vacuum valve core;
the valve body comprises a valve seat sleeved on the vacuum valve core, one end of the valve seat, far away from the handle, is connected with a valve body, one end of the valve body, far away from the valve seat, is connected with a vacuumizing joint in threaded connection with the vacuum valve core, and one side of the valve body is provided with a vacuumizing hose.
Preferably, one end of the valve seat, which is close to the handle, is provided with a compression nut, and the compression nut is connected with a tightening nut which is sleeved on the outer side of the valve seat.
Preferably, a valve rod fixing ring is arranged between the valve seat and the valve rod, a valve rod sealing upper pressing ring is arranged above the valve rod fixing ring, and the valve rod sealing upper pressing ring is sleeved on the valve rod.
Preferably, the valve rod fixing ring is connected with a sealing ring sleeved on the valve rod.
Preferably, a plurality of rubber rings are arranged between the sealing ring and the valve rod and between the sealing ring and the valve seat.
Preferably, a plurality of rubber rings are arranged between the valve core and the vacuumizing connector, and a plurality of rubber rings are arranged between the valve body and the vacuumizing connector.
Preferably, the vacuum hose is arranged perpendicular to the valve body.
In summary, the beneficial effects of the utility model are as follows:
1. according to the evacuation valve disclosed by the utility model, the evacuation hose is communicated with a pipeline of a vacuum system, and then the top handle is rotated to drive the vacuum valve core connected with the handle to move, so that the vacuum valve core can be lifted away from the evacuation joint, and the pipeline is evacuated.
2. The evacuation valve of the present utility model is used to seal off a vacuum without leaking the vacuum after evacuation of the pipe is completed.
3. The evacuation valve can realize repeated operation, and is convenient to disassemble, assemble and use.
Drawings
Fig. 1 is a schematic structural view of an embodiment of the present utility model.
The valve comprises a 1-valve rod, a 2-vacuum valve core, a 3-handle, a 4-valve seat, a 5-valve body, a 6-vacuumizing connector, a 7-vacuumizing hose, an 8-compression nut, a 9-tightening nut, a 10-valve rod fixing ring, an 11-valve rod sealing upper compression ring, a 12-sealing ring and a 13-rubber ring.
Detailed Description
The utility model provides an evacuating valve, which comprises a valve body and a valve head connected with the valve body, wherein the valve body and the valve head are matched with each other to finish the evacuating treatment of a pipeline.
The valve head comprises a valve rod 1 and a vacuum valve core 2 sleeved on the valve rod, wherein the vacuum valve core 2 is used for being matched with a valve body, so that the opening and closing of the evacuation valve are realized. One end of the valve rod 1 far away from the vacuum valve core 2 is provided with a handle 3, and the handle 3 is arranged at the top of the valve rod 1.
The valve seat 4 is provided with a compression nut 8 near one end of the handle 3, and the compression nut 8 is used for enabling a valve rod fixing rod 10 described below to be in a compression expansion state so as to achieve the sealing purpose. The compression nut 8 is connected with a tightening nut 9, and the tightening nut 9 is sleeved outside the valve seat 4.
A valve rod fixing ring 10 is arranged between the valve seat 4 and the valve rod 1, and the valve rod fixing ring 10 is used for limiting the valve rod 1 to move axially only and not move radially. The valve rod sealing upper pressure ring 11 is arranged above the valve rod fixing ring 10, and the valve rod sealing upper pressure ring 11 is sleeved on the valve rod 1, and the valve rod sealing upper pressure ring 11 is used for preventing vacuum leakage when the handle 3 moves. The valve rod fixing ring 10 is connected with a sealing ring 12 sleeved on the valve rod 1, the sealing ring 12 is positioned below the valve rod 1 fixing ring, and a plurality of rubber rings 13 are arranged between the sealing ring 12 and the valve rod 1 and between the sealing ring 12 and the valve seat 4. The rubber ring 13 is used for enhancing the tightness and preventing the sealing ring 12 from frosting and icing caused by valve air leakage.
The valve body comprises a valve seat 4 sleeved on the vacuum valve core 2, one end, far away from the handle 3, of the valve seat 4 is connected with a valve body 5, and the valve seat 4 and the valve body 5 are integrated. One end of the valve body 5, which is far away from the valve seat 4, is connected with a vacuumizing connector 6 which is in threaded connection with the vacuum valve core 2. A plurality of rubber rings 13 are arranged between the vacuum valve core 2 and the vacuumizing connector 6, a plurality of rubber rings 13 are arranged between the valve body 5 and the vacuumizing connector 6, the rubber rings 13 are used for further increasing the sealing performance of the vacuumizing valve, the rubber rings 13 at the two positions are fluororubber, and a sealing line formed between the vacuum valve core 2 and the vacuumizing connector 6 is inclined by 45 degrees, so that a guiding effect is achieved. One side of the valve body 5 is provided with a vacuum-pumping hose 7 communicated with the valve body, the vacuum-pumping hose 7 is used for being connected with a pipeline, and the vacuum-pumping hose 7 is arranged vertically to the valve body 5.
Working principle and process: the evacuation valve of the utility model is characterized in that the evacuation hose 7 is communicated with a pipeline of a vacuum system, and then the top handle 3 is rotated to drive the vacuum valve core 2 connected with the handle 3 to move, so that the vacuum valve core 2 can be lifted away from the evacuation joint 6, thereby completing the evacuation of the pipeline.
When the vacuum of the pipeline where the vacuumizing joint 6 is located needs to be sealed, the handle 3 is pressed downwards, the vacuumizing joint 6 is pressed in with the vacuum valve core 2, and then the handle 3 is rotated to separate the valve rod 1 from the valve core 2. After the vacuumizing joint 6 is blocked by the vacuum valve core 2, the vacuum of the pipeline where the vacuumizing joint 6 is positioned cannot leak, and the vacuumizing process is completed.
Although specific embodiments of the utility model have been described in detail with reference to the accompanying drawings, it should not be construed as limiting the scope of protection of the present patent. Various modifications and variations which may be made by those skilled in the art without the creative effort are within the scope of the patent described in the claims.
Claims (7)
1. An evacuation valve, characterized in that: comprises a valve body and a valve head connected with the valve body;
the valve head comprises a valve rod and a vacuum valve core sleeved on the valve rod, and a handle is arranged at one end of the valve rod, which is far away from the vacuum valve core;
the valve body comprises a valve seat sleeved on the vacuum valve core, one end, far away from the handle, of the valve seat is connected with a valve body, one end, far away from the valve seat, of the valve body is connected with a vacuumizing connector in threaded connection with the vacuum valve core, and one side of the valve body is provided with a vacuumizing hose.
2. An evacuation valve as claimed in claim 1 wherein: the valve seat is provided with a compression nut near one end of the handle, the compression nut is connected with a tightening nut, and the tightening nut is sleeved outside the valve seat.
3. An evacuation valve as claimed in claim 1 or claim 2 wherein: a valve rod fixing ring is arranged between the valve seat and the valve rod, a valve rod sealing upper pressing ring is arranged above the valve rod fixing ring, and the valve rod sealing upper pressing ring is sleeved on the valve rod.
4. An evacuation valve as claimed in claim 3 wherein: the valve rod fixing ring is connected with a sealing ring sleeved on the valve rod.
5. An evacuation valve as claimed in claim 4 wherein: a plurality of rubber rings are arranged between the sealing ring and the valve rod and between the sealing ring and the valve seat.
6. An evacuation valve as claimed in claim 1 wherein: a plurality of rubber rings are arranged between the valve core and the vacuumizing connector, and a plurality of rubber rings are arranged between the valve body and the vacuumizing connector.
7. An evacuation valve as claimed in claim 1 wherein: the vacuumizing hose is perpendicular to the valve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320264957.1U CN219198146U (en) | 2023-02-20 | 2023-02-20 | Evacuating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320264957.1U CN219198146U (en) | 2023-02-20 | 2023-02-20 | Evacuating valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219198146U true CN219198146U (en) | 2023-06-16 |
Family
ID=86712435
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320264957.1U Active CN219198146U (en) | 2023-02-20 | 2023-02-20 | Evacuating valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219198146U (en) |
-
2023
- 2023-02-20 CN CN202320264957.1U patent/CN219198146U/en active Active
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