CN211599583U - Ventilation butterfly valve - Google Patents
Ventilation butterfly valve Download PDFInfo
- Publication number
- CN211599583U CN211599583U CN201922414266.1U CN201922414266U CN211599583U CN 211599583 U CN211599583 U CN 211599583U CN 201922414266 U CN201922414266 U CN 201922414266U CN 211599583 U CN211599583 U CN 211599583U
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- China
- Prior art keywords
- main valve
- valve body
- cavity
- lifting cylinder
- wind
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- Expired - Fee Related
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Abstract
The utility model relates to the technical field of butterfly valves, in particular to a ventilation butterfly valve, which comprises a main valve body, an upper valve body and a lifting cylinder; a main valve cavity, an air inlet pipeline and an air outlet pipeline are arranged in the main valve body, the air inlet pipeline and the air outlet pipeline are respectively positioned on two sides of the main valve cavity and are communicated with the main valve cavity, and a wind baffle is arranged in the main valve cavity; the upper valve body is arranged above the main valve body, and the lifting cylinder is arranged above the upper valve body; a piston rod of the lifting cylinder is connected to the wind shield, and a first sealing ring is arranged at the upper part of the wind shield; the bottom of the main valve cavity is provided with a groove, and the bottom of the wind shield can be tightly matched with the bottom of the groove.
Description
Technical Field
The utility model relates to a butterfly valve technical field, concretely relates to ventilation butterfly valve.
Background
The ventilation butterfly valve is applied to dust-containing cold air or hot air gas pipelines of ventilation and environmental protection projects in the industries of chemical engineering, building materials, power stations, glass and the like, and is used as a pipeline control device for regulating the flow or cutting off a gas medium. Most of the devices are horizontally arranged, the structure is compact, the weight is light, the device is convenient to install, the flow resistance is small, the flow capacity is large, the influence of high-temperature expansion is avoided, and the operation is light. No connecting rod or bolt, reliable operation and long service life. Can be installed in multiple stations without being influenced by the flow direction of the medium.
At present, the improvement of the ventilation butterfly valve is mainly focused on improving the strength of the valve plate, for example, reinforcing ribs are additionally arranged, and materials with high toughness are used, however, after the workers observe for a long time, in the prior art, the defects that the required power is high in the moment of starting and the flow of the pipeline at the position is difficult to adjust still exist, the adaptability of the pipeline in work is further influenced, and the sealing performance is poor.
SUMMERY OF THE UTILITY MODEL
To the technical problem who mentions in the above-mentioned background art, consequently, the utility model provides a ventilation butterfly valve.
A ventilation butterfly valve comprises a main valve body, an upper valve body and a lifting cylinder; a main valve cavity, an air inlet pipeline and an air outlet pipeline are arranged in the main valve body, the air inlet pipeline and the air outlet pipeline are respectively positioned on two sides of the main valve cavity and are communicated with the main valve cavity, and a wind baffle is arranged in the main valve cavity; the upper valve body is arranged above the main valve body, and the lifting cylinder is arranged above the upper valve body; a piston rod of the lifting cylinder is connected to the wind shield, and a first sealing ring is arranged on the upper portion of the wind shield and the upper portion of the main valve cavity; the bottom of the main valve cavity is provided with a groove, and the bottom of the wind shield can be tightly matched with the bottom of the groove.
Preferably, two ends of the main valve body are respectively provided with a flange, and the flange is provided with a threaded hole.
Preferably, the main valve body and the upper valve body are connected through a bolt, and a second sealing gasket is arranged at the joint of the main valve body and the upper valve body.
Preferably, a PLC control device is disposed inside the housing of the upper valve body, and the PLC control device is configured to control the lifting cylinder.
Preferably, the air outlet pipeline is provided with a wind sensor, and the wind sensor is connected to the PLC control device.
Preferably, a dustproof net is arranged at the joint of the main valve cavity and the air inlet pipeline.
The utility model provides a ventilation butterfly valve, which has the advantages that the device is provided with a lifting cylinder, the lifting of a wind shield can be controlled through the lifting cylinder, thereby controlling the gas flow, avoiding the inaccuracy of controlling the gas flow by manpower, the upper part of the wind shield is provided with a first sealing ring, thereby ensuring that the gas can not leak from the upper part of a main valve cavity when the wind shield moves; the utility model discloses the device has set up PLC control system and wind force sensor, monitors the gas flow who goes out tuber pipe way department to give PLC control system signals, rethread PLC control system control lift cylinder has realized the automation process of this device.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic structural diagram of the device of the present invention;
in the figure, 1, a main valve body; 2. an upper valve body; 3. a lifting cylinder; 4. a main valve chamber; 41. a groove; 5. An air inlet pipeline; 6. an air outlet pipeline; 7. a wind deflector; 8. a first seal ring; 9. a bolt; 10. a second gasket; 11. a PLC control device; 12. a wind sensor; 13. a dust screen; 14. a flange plate; 141. a threaded bore.
Detailed Description
The embodiment provides a ventilation butterfly valve which is used for adjusting and controlling air quantity in a smoke exhaust, dust removal and ventilation system and has the function of controlling the on/off of air through a lifting wind shield 7.
As shown in fig. 1, the ventilation butterfly valve is made of cast iron as a main material and manufactured by a hot press molding process, and comprises a main valve body 1, an upper valve body 2 and a lifting cylinder 3.
The main valve body 1 is integrally in a long cylindrical shape, and a main valve cavity 4, an air inlet pipeline 5 and an air outlet pipeline 6 are arranged in the main valve body. The air inlet pipeline 5 and the air outlet pipeline 6 are respectively positioned at two sides of the main valve cavity 4 and are communicated with the main valve cavity 4, and a wind shield 7 is arranged inside the main valve cavity 4. The air enters from the air inlet pipe 5, enters the main valve cavity 4 and then flows out from the air outlet pipe 6.
The upper valve body 2 is arranged above the main valve body 1, and the lifting cylinder 3 is arranged above the upper valve body 2. The piston rod of the lifting cylinder 3 is connected with the wind shield 7, and the lifting cylinder 3 can drive the wind shield 7 to lift in the main valve cavity 4, so that the opening or the finishing of the main valve cavity 4 is controlled. And a first sealing ring 8 is arranged on the upper part of the wind shield 7 and the upper part of the main valve cavity 4, so that gas is prevented from leaking from the upper part of the main valve cavity 4 when the wind shield 7 moves. The bottom of the main valve cavity 4 is provided with a groove 41, and the bottom of the wind shield 7 can be tightly matched with the bottom of the groove 41, so that the wind shield 7 can be positioned; on the other hand, the close fit of the wind deflector 7 with the groove 41 serves to prevent leakage. Impurities are often mixed in the gas, and long-term accumulation can block the whole main valve cavity 1, so that the wind shield 7 cannot be completely closed, and therefore a dustproof net 13 is arranged at the joint of the main valve cavity 4 and the air inlet pipeline 5, and the impurities in the gas are prevented from entering the main valve cavity 4.
The utility model discloses in, the both ends of the main valve body 1 respectively are equipped with a ring flange 14, dispose screw hole 141 on the ring flange 14. The air inlet pipeline 5 and the air outlet pipeline 6 can be respectively connected with a gas pipeline through the flange 14, and similarly, a sealing ring is arranged at the joint of the flange 14 and the gas pipeline, so that the sealing property between the butterfly valve and the gas pipeline is ensured.
Similarly, the main valve body 1 and the upper valve body 2 are connected through a bolt 9, and a second sealing gasket 10 is arranged at the joint of the main valve body 1 and the upper valve body 2. The second sealing ring 10 is adopted to ensure the sealing performance between the main valve body 1 and the upper valve body 2.
In addition, in order to realize the automation process of the device, a PLC control device 11 is arranged inside the housing of the upper valve body 1, and the PLC control device 11 is used for controlling the lifting cylinder 3. The air outlet pipeline 6 is provided with a wind sensor 12, and the wind sensor 12 is connected to the PLC control device 11.
The utility model discloses the theory of operation of device:
when in use, the butterfly valve is arranged on a gas pipeline, and a sealing ring is arranged between the flange plate 14 and the gas pipeline in order to ensure the sealing property between the butterfly valve and the gas pipeline. When the butterfly valve is opened to needs, lift cylinder 3 starts, deep bead 7 is under lift cylinder's effect, upward movement, main valve chamber 4 is opened, gas gets into main valve chamber 4 from intake stack 5, flow into air-out pipeline 6 from main valve chamber 4 again, the gas flow condition can be detected to wind-force sensor 12 of air-out pipeline 6 department, and give PLC control system 11 with signal transmission, the gas flow condition that PLC control system 11 adjusted as required, control lift cylinder 3, when lift cylinder 3 makes deep bead 7 rebound, gas flow can increase, when lift cylinder 3 makes deep bead 7 rebound, gas flow can reduce.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A ventilation butterfly valve is characterized by comprising a main valve body, an upper valve body and a lifting cylinder; a main valve cavity, an air inlet pipeline and an air outlet pipeline are arranged in the main valve body, the air inlet pipeline and the air outlet pipeline are respectively positioned on two sides of the main valve cavity and are communicated with the main valve cavity, and a wind baffle is arranged in the main valve cavity; the upper valve body is arranged above the main valve body, and the lifting cylinder is arranged above the upper valve body; a piston rod of the lifting cylinder is connected to the wind shield, and a first sealing ring is arranged at the upper part of the wind shield; the bottom of the main valve cavity is provided with a groove, and the bottom of the wind shield can be tightly matched with the bottom of the groove.
2. The vent butterfly valve of claim 1, wherein the main valve body has a flange at each end, the flange having a threaded bore.
3. The vent butterfly valve of claim 1, wherein the main valve body and the upper valve body are bolted together, and a second gasket is disposed at the junction of the main valve body and the upper valve body.
4. The ventilation butterfly valve of claim 1, wherein a PLC control device is disposed inside the housing of the upper valve body, the PLC control device being configured to control the lift cylinder.
5. The ventilation butterfly valve according to claim 4, wherein a wind sensor is arranged on the outlet pipeline, and the wind sensor is connected to a PLC control device.
6. The ventilation butterfly valve of claim 1, wherein a dust screen is provided at a junction of the main valve chamber and the intake duct.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922414266.1U CN211599583U (en) | 2019-12-27 | 2019-12-27 | Ventilation butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922414266.1U CN211599583U (en) | 2019-12-27 | 2019-12-27 | Ventilation butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211599583U true CN211599583U (en) | 2020-09-29 |
Family
ID=72596988
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922414266.1U Expired - Fee Related CN211599583U (en) | 2019-12-27 | 2019-12-27 | Ventilation butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211599583U (en) |
-
2019
- 2019-12-27 CN CN201922414266.1U patent/CN211599583U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200929 Termination date: 20211227 |