CN215214771U - Double-flap adjusting butterfly valve - Google Patents
Double-flap adjusting butterfly valve Download PDFInfo
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- CN215214771U CN215214771U CN202120658447.3U CN202120658447U CN215214771U CN 215214771 U CN215214771 U CN 215214771U CN 202120658447 U CN202120658447 U CN 202120658447U CN 215214771 U CN215214771 U CN 215214771U
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- valve
- clack
- valve body
- double
- butterfly valve
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Abstract
The utility model discloses a bivalve butterfly valve of adjusting, including valve body, valve shaft, valve clack and drive arrangement, be equipped with the baffle in the valve body one, separate into two semi-circular cavities with the valve body, be equipped with a valve clack in every semi-circular cavity, be connected with the valve body through two valve shafts on the valve clack, at least one valve shaft and the drive arrangement of every valve clack are connected, the surperficial central line and the both sides of valve clack are equipped with the guide plate with fluid direction syntropy. The flow rate can be adjusted under different working pressures, the adjusting precision is high, and the adjusting characteristics are equal in percentage.
Description
Technical Field
The utility model belongs to the valve field especially relates to a butterfly valve is adjusted to bivalve.
Background
A butterfly valve, also called a flap valve, is a regulating valve with simple structure, and can be used for the on-off control of low-pressure pipeline media, namely a valve which is opened and closed by rotating around a valve shaft, wherein a closing member (a valve clack or a butterfly plate) is a disk.
The valve can be used for controlling the flow of various types of fluids such as air, water, steam, various corrosive media, slurry, oil products, liquid metal, radioactive media and the like. The pipe mainly plays a role in cutting off and throttling. The butterfly valve opening and closing piece is a disc-shaped butterfly plate and rotates around the axis of the butterfly plate in the valve body, so that the opening and closing or adjusting purpose is achieved.
The existing butterfly valve has to be researched in the aspects of large-caliber airflow interference and adjustability, and particularly has the problems of adjusting different flow and adjusting precision under different working pressures.
Disclosure of Invention
In order to overcome the weak point of above-mentioned prior art, the utility model provides a butterfly valve is adjusted to bivalve adjusts different flow under different operating pressure to adjust the precision height, adjust the percentage such as characteristic one-tenth.
In order to achieve the above purpose, the utility model adopts the following technical scheme: a double-flap adjusting butterfly valve comprises a valve body, valve shafts, valve flaps and a driving device, wherein a partition plate is arranged in the valve body to divide the valve body into two semicircular cavities, one valve flap is arranged in each semicircular cavity, the valve flaps are connected with the valve body through the two valve shafts, at least one valve shaft of each valve flap is connected with the driving device, and guide plates in the same direction as the fluid direction are arranged on the surface center line and the two sides of each valve flap.
In the technical scheme, an arc rib plate is arranged between the guide plates on one side of the valve clack on the back surface.
In the above technical solution, the valve flap has a rotation range of 0 to 90 °.
In the technical scheme, an anti-corrosion stainless steel layer is arranged on a sealing surface which forms a seal with the valve clack in the valve body.
In the technical scheme, the shaft seat of the valve body is provided with the reinforcing guard plate and the supporting rib plate.
In the above technical solution, the driving device is a hydraulic cylinder.
The utility model has the advantages that: through fluid analysis, the structure has small interference effect on the stability of the airflow behind the valve, has good flow state characteristic and is accurate equal-percentage flow characteristic.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a view a-a of fig. 1.
Fig. 3 is a schematic structural view of the valve body in fig. 1.
Fig. 4 is a schematic view of the valve flap of fig. 1.
Fig. 5 is a left side view of fig. 4.
Wherein: 1. the valve comprises a valve body, 2 parts of a valve shaft, 3 parts of a valve clack, 4 parts of a driving device, 5 parts of a partition plate, 6 parts of a guide plate, 7 parts of an arc-shaped rib plate, 8 parts of a reinforced guard plate and 9 parts of a supporting rib plate.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific embodiments.
The double-disc adjusting butterfly valve shown in fig. 1 to 5 comprises a valve body 1, a valve shaft 2, a valve disc 3 and a driving device 4, wherein a partition plate 5 is arranged in the valve body 1 to divide the valve body 1 into two semicircular chambers, one valve disc 3 is arranged in each semicircular chamber, the valve disc 3 is connected with the valve body 1 through the two valve shafts 2, at least one valve shaft of each valve disc 3 is connected with the driving device 4, and guide plates 6 in the same direction as the fluid are arranged on the surface center line and two sides of the valve disc 3. The two valve flaps 3 are each rotated by a drive 4, so that the two valve flaps 3 are in an open or closed state, and the purpose of adjusting the medium is achieved.
In the technical scheme, an arc rib plate 7 is arranged between the guide plates on one side of the back surface of the valve clack 3, so that the integral rigidity is enhanced.
In the above technical solution, the rotation range of the valve flap 3 is 0-90 °.
In the technical scheme, an anti-corrosion stainless steel layer is arranged on a sealing surface which forms a seal with the valve clack 3 in the valve body 1. Because the material that valve body 1 generally adopted corrodes relatively easily, weld a layer of stainless steel layer in the contact position of valve clack 3 and valve body 3, be difficult to corrode, sealed effectual.
In the technical scheme, the shaft seat of the valve body 1 is provided with the reinforced guard plate 8 and the supporting rib plate 9, so that the valve body stress is ensured to be in an allowable range under the most dangerous working condition.
In the above technical solution, the driving device 4 is a hydraulic cylinder.
Through fluid analysis, the structure has small interference effect on the stability of the airflow behind the valve, has good flow state characteristic and is accurate equal-percentage flow characteristic.
As shown in fig. 4 and 5, the arc rib 7 has different distribution on two sides of the valve shaft due to the connection position of the valve shaft and the valve flap, so that the whole rigidity is good.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention.
Claims (6)
1. The utility model provides a butterfly valve is adjusted to bivalve which characterized by: the valve comprises a valve body, valve shafts, valve clacks and a driving device, wherein a partition plate is arranged in the valve body to divide the valve body into two semicircular cavities, one valve clack is arranged in each semicircular cavity, the valve clack is connected with the valve body through the two valve shafts, at least one valve shaft of each valve clack is connected with the driving device, and guide plates in the same direction as the fluid are arranged on the surface center line and two sides of the valve clack.
2. The double-disc regulating butterfly valve of claim 1, wherein: an arc rib plate is arranged between the guide plates on one side of the valve clack on the back surface.
3. The double-disc regulating butterfly valve of claim 1, wherein: the valve flap has a range of rotation of 0-90 deg..
4. The double-disc regulating butterfly valve of claim 1, wherein: and an anti-corrosion stainless steel layer is arranged on a sealing surface which forms a seal with the valve clack in the valve body.
5. The double-disc regulating butterfly valve of claim 1, wherein: and a shaft seat of the valve body is provided with a reinforced guard plate and a supporting rib plate.
6. The double-disc regulating butterfly valve of claim 1, wherein: the driving device is a hydraulic cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120658447.3U CN215214771U (en) | 2021-03-31 | 2021-03-31 | Double-flap adjusting butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120658447.3U CN215214771U (en) | 2021-03-31 | 2021-03-31 | Double-flap adjusting butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215214771U true CN215214771U (en) | 2021-12-17 |
Family
ID=79444901
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120658447.3U Active CN215214771U (en) | 2021-03-31 | 2021-03-31 | Double-flap adjusting butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215214771U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116255463A (en) * | 2023-03-09 | 2023-06-13 | 五洲阀门股份有限公司 | Double-plate adjusting butterfly valve |
-
2021
- 2021-03-31 CN CN202120658447.3U patent/CN215214771U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116255463A (en) * | 2023-03-09 | 2023-06-13 | 五洲阀门股份有限公司 | Double-plate adjusting butterfly valve |
| CN116255463B (en) * | 2023-03-09 | 2023-09-19 | 五洲阀门股份有限公司 | Double-plate adjusting butterfly valve |
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