CN220605398U - Pressure equalizing gas exchange valve device of normal pressure closed ring main unit - Google Patents
Pressure equalizing gas exchange valve device of normal pressure closed ring main unit Download PDFInfo
- Publication number
- CN220605398U CN220605398U CN202322283447.1U CN202322283447U CN220605398U CN 220605398 U CN220605398 U CN 220605398U CN 202322283447 U CN202322283447 U CN 202322283447U CN 220605398 U CN220605398 U CN 220605398U
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- Prior art keywords
- valve
- air
- air passage
- main body
- gas exchange
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- 238000009423 ventilation Methods 0.000 claims abstract description 20
- 229920000742 Cotton Polymers 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 6
- 238000012545 processing Methods 0.000 claims description 2
- 238000003466 welding Methods 0.000 claims description 2
- 230000002000 scavenging effect Effects 0.000 abstract description 8
- 239000000428 dust Substances 0.000 description 5
- 238000011161 development Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Valve Housings (AREA)
Abstract
The utility model discloses a pressure equalizing and scavenging valve device of a normal pressure closed ring main unit in the field of ring main units, which comprises a valve main body, wherein a main air passage is formed in the middle of the valve main body, the front part of the valve main body is connected with a gas tank through a fixed structure, a scavenging valve cover is arranged at the rear part of the valve main body, and the main air passage is communicated with the scavenging valve cover and the gas tank. After the valve main body is installed with the air box through the front fixing structure, the main air passage is communicated with the air box and the ventilation valve cover, so that external air can enter the air box through the ventilation valve cover and the main air passage, pressure balance is realized, and the air in the air box can be clean and dust-free.
Description
Technical Field
The utility model relates to a scavenging valve in the field of ring main units.
Background
The normal-pressure closed ring main unit is a novel environment-friendly ring main unit, and is more environment-friendly and lower in cost compared with the ring main unit of an air tank needing SF6 gas for pressurization. The method omits the trouble of inflating and treating the air leakage of the air tank, does not adopt an SF6 composite switch, accords with the concept of energy conservation and emission reduction, accords with the requirement of green development, has longer service life, and reduces the frequency of maintenance. However, the normal pressure airtight ring main unit, the air box of which needs to be communicated with the atmosphere, so a valve needs to be installed, the pressure balance between the air box and the outside is ensured, meanwhile, the air in the air box is ensured to be clean and dust-free, and the valve is simple and convenient to install.
Disclosure of Invention
The utility model aims to provide a pressure equalizing gas exchange valve device of a normal pressure closed ring main unit, which ensures that gas smoothly passes through, and air in a gas tank can be completely and dustlessly filled and is effectively matched with the gas tank.
In order to achieve the aim, the utility model provides a pressure equalizing gas exchange valve device of a normal pressure closed ring main unit, which comprises a valve main body, wherein a main gas passage is formed in the middle of the valve main body, the front part of the valve main body is connected with a gas tank through a fixed structure, a gas exchange valve cover is arranged at the rear part of the valve main body, and the main gas passage is communicated with the gas exchange valve cover and the gas tank.
Compared with the prior art, the utility model has the beneficial effects that after the valve main body is installed with the air box through the front fixing structure, the main air passage is used for communicating the air box with the ventilation valve cover, so that the outside air can enter the air box through the ventilation valve cover and the main air passage, the pressure balance is realized, and the air in the air box can be clean and dust-free.
As a further improvement of the utility model, the fixing structure comprises a fixing nut which is welded on the inner wall of the air box and matched with the vent hole on the air box, and the outer periphery of the front part of the valve main body is provided with an external thread matched with the fixing nut.
The fixing nut is welded on the air box, and the valve main body is screwed into the fixing nut at the air box part, so that the assembly of the valve main body and the air box is achieved, and the assembly is simple and convenient.
As a further improvement of the utility model, the ventilation valve cover comprises a front stud, the rear part of the valve main body is provided with an end nut, the front stud is matched with the end nut, the tail part of the front stud is provided with an end cap, a rear air passage is arranged in the front stud, and the rear air passage is communicated with the main air passage and a ventilation hole arranged on the end cap.
Thus, the air vent, the rear air passage and the main air passage are communicated with each other, so that the air in the air box is communicated with the outside air, and the air vent can also prevent large-particle impurities from entering the air box.
As a further improvement of the utility model, a plurality of ventilation holes are arranged and distributed on the side circumference of the end cap.
Thus, the outside air laterally enters and exits from the air vent of the end cap rather than linearly flows, so that the entry of large-particle dust in the air is further reduced, and the clean dust-free air box is ensured.
As a further development of the utility model, a sealing ring is arranged on the front stud.
Therefore, the tightness between the scavenging valve and the air box can be improved, and dust and water vapor are prevented from entering the air box.
As a further improvement of the utility model, the front channel of the end nut is provided with a filter cotton pad.
The filter cotton pad is positioned between the main air passage and the rear air passage, so that dust and water gas can be more effectively placed into the air box, and the air box is ensured to be dry and dust-free.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model.
Fig. 2 is an exploded view of the present utility model.
Fig. 3 is an exploded view of the present utility model.
FIG. 4 is a schematic view of the valve body structure of the present utility model.
Fig. 5 is an exploded view of the valve body of the present utility model.
The device comprises a sealing ring 1, a fixing nut 2, a valve body 3, a main air passage 4, a head nut 5, a ventilation valve cover 6, a ventilation hole 7, a front stud 8, a rear air passage 9 and a filter cotton pad 10.
Description of the embodiments
The utility model is further described below with reference to the accompanying drawings:
the pressure equalizing and scavenging valve device of the normal pressure closed ring main unit shown in figures 1-5 comprises a valve main body 3, wherein a main air passage 4 is formed in the middle of the valve main body 3, the front part of the valve main body 3 is connected with a gas tank through a fixed structure, a scavenging valve cover 6 is arranged at the rear part of the valve main body 3, and the main air passage 4 is communicated with the scavenging valve cover 6 and the gas tank.
The fixed knot constructs including fixation nut 2, fixation nut 2 welding on the gas tank inner wall with the air vent phase-match on the gas tank, the anterior periphery processing of valve main part 3 has with fixation nut 2 assorted external screw thread. The ventilation valve cover 6 comprises a front stud 8, the rear part of the valve main body 3 is processed with a head nut 5, the front stud 8 is matched with the head nut 5, the tail part of the front stud 8 is provided with an end cap, a rear air passage 9 is arranged in the front stud 8, and the rear air passage 9 is communicated with the main air passage 4 and the ventilation hole 7 arranged on the end cap.
The ventilation holes 7 are provided in plurality and are distributed on the side circumference of the end cap. A sealing ring 1 is arranged on the front stud 8. The front channel of the end nut 5 is provided with a filter cotton pad 10.
In the utility model, a fixed nut 2 is welded on the inner wall of an air box, the center of the nut coincides with the center of a vent hole on the air box, a filter cotton sheet pad 10 is placed in a valve main body 3 and positioned at the forefront end in a head nut 5, and a main air passage 4 can be just divided into two parts.
The front stud 8 of the ventilation valve cover 6 is screwed into the end nut 5, and the forefront end of the front stud 8 is abutted against the filter cotton pad 10, so that the filter cotton pad 10 can be pressed in the valve main body 3; the rear air passage 9 in the front stud 8 extends into the rear section of the main air passage 4, so that the main air passage 4 and the rear air passage 9 are communicated, and a filter cotton pad 10 is arranged in the middle for separation.
The ventilation valve cover 6 is also provided with an end cap which is hollow and arranged at the rear end of the front stud 8 so as to be communicated with the rear air passage 9, and the ventilation holes 7 arranged on the side periphery of the end cap are communicated with the rear air passage 9.
A sealing ring 1 is sleeved on the front part of the valve main body 3, so that the front part of the valve main body 3 is inserted into a vent hole on the air box outside the air box and screwed into the fixing screw, the whole front end enters the air box, the main air passage 4 is communicated with the air box, and the sealing ring 1 is tightly pressed between the front end of the end nut 5 and the outer wall of the air box, so that the joint of the front end and the air box is kept sealed.
The air box and the external air can be communicated through the main air passage 4, the rear air passage 9 and the air vent 7, so that dynamic balance between the air box and the external pressure is ensured, the air vent 7 at the side periphery can ensure that large granular substances cannot enter the air box, the filter cotton pad 10 can prevent small granular dust from entering the air box, and moisture in the external air can be adsorbed, so that the air in the air box is dry and dust-free. The filter pad 10 needs to be replaced periodically to ensure the effect of drying the dust insulation.
The utility model can ensure the pressure balance between the air box and the outside air and can also ensure the drying and dust-free air inside the air box.
The present utility model is not limited to the above-described embodiments, and based on the technical solutions of the present disclosure, those skilled in the art may make some substitutions and modifications to some technical features thereof without creative efforts, which are all within the scope of the present utility model.
Claims (6)
1. The utility model provides a pressure equalizing gas exchange valve device of airtight looped netowrk cabinet of ordinary pressure which characterized in that: the air-exchanging valve comprises a valve main body, wherein a main air passage is formed in the middle of the valve main body, the front part of the valve main body is connected with an air box through a fixing structure, a ventilation valve cover is arranged at the rear part of the valve main body, and the main air passage is communicated with the ventilation valve cover and the air box.
2. The pressure equalizing gas exchange valve device of the normal pressure closed ring main unit according to claim 1, wherein: the fixed knot constructs including fixation nut, fixation nut welding on the gas tank inner wall with the last air vent phase-match of gas tank, the anterior periphery processing of valve main part has with fixation nut assorted external screw thread.
3. The pressure equalizing gas exchange valve device of the normal pressure closed ring main unit according to claim 2, wherein: the ventilation valve cover comprises a front stud, an end nut is machined at the rear part of the valve body, the front stud is matched with the end nut, an end cap is arranged at the tail part of the front stud, a rear air passage is arranged in the front stud, and the rear air passage is communicated with the main air passage and a ventilation hole arranged on the end cap.
4. A pressure equalizing gas exchange valve device of a normal pressure closed ring main unit according to claim 3, wherein: the ventilation holes are arranged in a plurality and are distributed on the side circumference of the end cap.
5. The pressure equalizing gas exchange valve device of the normal pressure closed ring main unit according to claim 4, wherein: a sealing ring is arranged on the front stud.
6. The pressure equalizing gas exchange valve device of the normal pressure closed ring main unit according to claim 5, wherein: the front channel of the end nut is provided with a filter cotton pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322283447.1U CN220605398U (en) | 2023-08-24 | 2023-08-24 | Pressure equalizing gas exchange valve device of normal pressure closed ring main unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322283447.1U CN220605398U (en) | 2023-08-24 | 2023-08-24 | Pressure equalizing gas exchange valve device of normal pressure closed ring main unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220605398U true CN220605398U (en) | 2024-03-15 |
Family
ID=90179792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322283447.1U Active CN220605398U (en) | 2023-08-24 | 2023-08-24 | Pressure equalizing gas exchange valve device of normal pressure closed ring main unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220605398U (en) |
-
2023
- 2023-08-24 CN CN202322283447.1U patent/CN220605398U/en active Active
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