CN220168600U - Light ventilating butterfly valve - Google Patents
Light ventilating butterfly valve Download PDFInfo
- Publication number
- CN220168600U CN220168600U CN202321466652.5U CN202321466652U CN220168600U CN 220168600 U CN220168600 U CN 220168600U CN 202321466652 U CN202321466652 U CN 202321466652U CN 220168600 U CN220168600 U CN 220168600U
- Authority
- CN
- China
- Prior art keywords
- butterfly valve
- valve
- sealing ring
- butterfly
- valve rod
- 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.)
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Links
- 238000007789 sealing Methods 0.000 claims abstract description 67
- 239000000919 ceramic Substances 0.000 claims abstract description 25
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 16
- 239000010935 stainless steel Substances 0.000 claims abstract description 16
- 238000009423 ventilation Methods 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 claims description 4
- -1 polytetrafluoroethylene Polymers 0.000 claims description 4
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 4
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 4
- 241000446313 Lamella Species 0.000 claims 1
- 239000012530 fluid Substances 0.000 description 7
- 230000007797 corrosion Effects 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- 239000002245 particle Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
Abstract
The utility model discloses a light ventilation butterfly valve, which relates to the technical field of valves and comprises a valve body, a valve rod and butterfly flaps, and is characterized in that: the valve rod longitudinally passes through the valve body, and the butterfly valve is connected with the valve rod through a first fastener; the butterfly valve is provided with a first O-shaped sealing ring, a ceramic sealing ring is arranged above the butterfly valve, a plurality of layers of stainless steel waveform gaskets are arranged below the butterfly valve, and the ceramic sealing ring and the plurality of layers of stainless steel waveform gaskets are sleeved on the valve rod; the valve rod is also provided with a shaft sleeve above the butterfly valve, and the upper end and the lower end of the shaft sleeve are provided with second O-shaped sealing rings. The utility model has compact structure, the butterfly valve is detachable and convenient to replace and maintain, and double sealing measures are carried out among the valve rod, the valve body and the butterfly valve through the O-shaped sealing ring, the ceramic sealing ring and the multilayer stainless steel wave-shaped gasket, so that the sealing performance is improved.
Description
Technical Field
The utility model relates to the technical field of valves, in particular to a light ventilating butterfly valve.
Background
The butterfly valve is a valve for controlling the flow of gas, and is mainly used for industrial applications such as ventilation, dust removal, waste gas treatment and the like. The valve consists of a valve body, a valve plate, a valve rod, a sealing ring and the like, and is usually operated manually or electrically.
The sealing performance of butterfly valves may be affected by solid particles in the fluid, resulting in leakage or clogging and reduced sealing performance.
Disclosure of Invention
Aiming at the problems that the sealing performance of a butterfly valve is possibly influenced by solid particles in fluid, so that leakage or blockage is caused and the sealing performance is reduced, the utility model provides a light ventilation butterfly valve, wherein butterfly valve sections can be detached and replaced, and double sealing measures are carried out among a valve rod, a valve body and the butterfly valve sections through O-shaped sealing rings, ceramic sealing rings and a plurality of layers of stainless steel waveform gaskets, so that the sealing performance is improved.
In order to achieve the above purpose, the specific technical scheme of the utility model is as follows:
the light ventilation butterfly valve comprises a valve body, a valve rod and a butterfly valve body, wherein the valve rod longitudinally penetrates through the valve body, and the butterfly valve body is connected with the valve rod through a first fastener; the butterfly valve is provided with a first O-shaped sealing ring, a ceramic sealing ring is arranged above the butterfly valve, a plurality of layers of stainless steel waveform gaskets are arranged below the butterfly valve, and the ceramic sealing ring and the plurality of layers of stainless steel waveform gaskets are sleeved on the valve rod; the valve rod is also provided with a shaft sleeve above the butterfly valve, and the upper end and the lower end of the shaft sleeve are provided with second O-shaped sealing rings.
Based on the technical characteristics, the ceramic sealing ring is concave, and a plurality of rubber springs are arranged between the ceramic sealing ring and the valve rod; the rubber spring is between the ceramic sealing ring and the second O-shaped sealing ring.
Based on the technical characteristics, preferably, the first O-ring and the butterfly valve are connected by a second fastener.
Based on the technical characteristics, preferably, the first O-ring is provided with at least 2 layers.
Based on the technical characteristics, preferably, a second O-shaped sealing ring is arranged between the valve rod below the butterfly valve and the valve body.
Based on the technical characteristics, preferably, the first O-ring is made of polytetrafluoroethylene material.
Compared with the prior art, the utility model has the beneficial effects that:
1. the butterfly valve is provided with the first O-shaped sealing ring which is made of polytetrafluoroethylene material, has good wear resistance and corrosion resistance, can keep stable sealing performance for a long time, and is clamped between the butterfly valve and the valve body when closed, so that a complete sealing structure is formed. When fluid flows through the valve, the fluid can closely cling to the inner wall of the pipeline to form an excellent sealing effect due to the elastic action of the first O-shaped sealing ring;
2. the ceramic sealing ring and the multilayer stainless steel corrugated gaskets are arranged on the end face of the valve rod, which is in contact with the butterfly valve, when the butterfly valve is closed, the multilayer stainless steel corrugated gaskets deform and fill gaps between the connecting pieces, so that sealing is realized, and the valve rod is high-temperature-resistant and corrosion-resistant.
Drawings
FIG. 1 is a schematic diagram of a front view of a light-duty butterfly valve with ventilation according to the present utility model;
list of drawing identifiers:
1. a valve body; 2. butterfly valve; 3. a valve stem; 4. a shaft sleeve; 5. A first fastener; 6. a first O-ring seal; 7. a second fastener; 8. a ceramic seal ring; 9. a rubber spring; 10. a second O-ring seal; 11. multilayer stainless steel corrugated gasket.
Description of the embodiments
The present utility model is further illustrated in the following drawings and detailed description, which are to be understood as being merely illustrative of the utility model and not limiting the scope of the utility model.
It should be noted that the words "upper" and "lower" used in the following description refer to directions in the drawings, and the words "inner" and "outer" refer to directions toward or away from, respectively, the geometric center of a particular component.
As shown in fig. 1, a light ventilation butterfly valve comprises a valve body 1, a valve rod 3 and a butterfly valve body 2, wherein the valve rod 3 longitudinally penetrates through the valve body 1, the butterfly valve body 2 and the valve rod 3 are connected by a first fastener 5, when the butterfly valve is blocked due to the influence of solid particles in fluid, the first fastener 5 can be sent out, and the valve rod 3 is pulled out for cleaning and maintenance.
The butterfly valve 2 is provided with a first O-shaped sealing ring 6 on the circumferential surface, and the first O-shaped sealing ring 6 is connected with the butterfly valve 2 through a second fastening piece 7. Preferably, the first O-ring 6 is at least provided with 2 layers, preferably, the first O-ring is made of polytetrafluoroethylene material, has good wear resistance and corrosion resistance, can maintain stable sealing performance for a long time, and is clamped between the butterfly valve and the valve body to form a complete sealing structure when closed. When fluid flows through the valve, due to the elastic action of the first O-shaped sealing rings, the fluid can closely cling to the inner wall of the pipeline to form an excellent sealing effect.
Ceramic sealing rings 8 are arranged above the butterfly valve 2, a plurality of layers of stainless steel waveform gaskets 11 are arranged below the butterfly valve 2, and the ceramic sealing rings 8 and the plurality of layers of stainless steel waveform gaskets 11 are sleeved on the valve rod.
The valve rod 1 is also provided with a shaft sleeve 4 above the butterfly valve 2, and the upper end and the lower end of the shaft sleeve 4 are provided with second O-shaped sealing rings 10. The ceramic sealing ring 8 is concave, and a plurality of rubber springs 9 are arranged between the ceramic sealing ring and the valve rod. The rubber spring 9 is arranged between the ceramic sealing ring 8 and the second O-shaped sealing ring 10, so that rigid friction between the ceramic sealing ring 8 and the second O-shaped sealing ring 10 is reduced, and axial deflection between the ceramic sealing ring 8 and the valve rod 3 is relieved.
The ceramic sealing ring 8 and the multilayer stainless steel corrugated gaskets 11 are arranged on the end face of the valve rod 3, which is in contact with the butterfly valve 2, when the butterfly valve 2 is closed, the multilayer stainless steel corrugated gaskets 11 deform and fill gaps between connecting pieces, so that sealing is realized, and the butterfly valve is high-temperature resistant and corrosion resistant.
In conclusion, the butterfly valve is compact in structure, the butterfly valve is detachable and convenient to replace and maintain, double sealing measures are carried out among the valve rod, the valve body and the butterfly valve through the O-shaped sealing ring, the ceramic sealing ring and the multi-layer stainless steel corrugated gaskets, and the sealing performance is improved.
It should be noted that the drawings merely illustrate the technical idea of the utility model and the shape is not intended to limit the scope of the utility model, and those skilled in the art can make several improvements and modifications without departing from the principles of the utility model, which fall within the scope of the claims of the utility model.
Claims (6)
1. The utility model provides a light-duty ventilation butterfly valve, includes valve body, valve rod and butterfly lamella, its characterized in that: the valve rod longitudinally passes through the valve body, and the butterfly valve is connected with the valve rod through a first fastener; the butterfly valve is provided with a first O-shaped sealing ring, a ceramic sealing ring is arranged above the butterfly valve, a plurality of layers of stainless steel waveform gaskets are arranged below the butterfly valve, and the ceramic sealing ring and the plurality of layers of stainless steel waveform gaskets are sleeved on the valve rod; the valve rod is also provided with a shaft sleeve above the butterfly valve, and the upper end and the lower end of the shaft sleeve are provided with second O-shaped sealing rings.
2. A lightweight, ventilated butterfly valve according to claim 1, wherein: the ceramic sealing ring is concave, and a plurality of rubber springs are arranged between the ceramic sealing ring and the valve rod; the rubber spring is between the ceramic sealing ring and the second O-shaped sealing ring.
3. A lightweight, ventilated butterfly valve according to claim 1, wherein: the first O-shaped sealing ring is connected with the butterfly valve through a second fastening piece.
4. A lightweight, ventilated butterfly valve according to claim 1, wherein: the first O-shaped sealing ring is at least provided with 2 layers.
5. A lightweight, ventilated butterfly valve according to claim 1, wherein: and a second O-shaped sealing ring is arranged between the valve rod below the butterfly valve and the valve body.
6. A lightweight, ventilated butterfly valve according to claim 1, wherein: the first O-shaped sealing ring is made of polytetrafluoroethylene materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321466652.5U CN220168600U (en) | 2023-06-09 | 2023-06-09 | Light ventilating butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321466652.5U CN220168600U (en) | 2023-06-09 | 2023-06-09 | Light ventilating butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220168600U true CN220168600U (en) | 2023-12-12 |
Family
ID=89066148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321466652.5U Active CN220168600U (en) | 2023-06-09 | 2023-06-09 | Light ventilating butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220168600U (en) |
-
2023
- 2023-06-09 CN CN202321466652.5U patent/CN220168600U/en active Active
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Legal Events
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| GR01 | Patent grant | ||
| GR01 | Patent grant |