CN101713466B - Bias lining type wear resistant dust and gas butterfly valve - Google Patents
Bias lining type wear resistant dust and gas butterfly valve Download PDFInfo
- Publication number
- CN101713466B CN101713466B CN200910144529XA CN200910144529A CN101713466B CN 101713466 B CN101713466 B CN 101713466B CN 200910144529X A CN200910144529X A CN 200910144529XA CN 200910144529 A CN200910144529 A CN 200910144529A CN 101713466 B CN101713466 B CN 101713466B
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- valve body
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- disc
- butterfly plate
- wear resistant
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Abstract
The invention discloses a bias lining type wear resistant dust and gas butterfly valve which comprises a valve body, wherein the valve body is internally provided with a valve shaft, and a disc is arranged on the valve shaft in the valve body; the disc consists of a disc small circle side and a disc large circuit side; the valve body is internally and fixedly provided with a semi-circular wear resistant lining plate mutually matched with the inner wall of the valve body; the inner wall of the semi-circular wear resistant lining plate and the inner wall at one side of the valve body are respectively and fixedly provided with a first valve seat and a second valve seat; the disc small circle side and the disc large circuit side of the disc are respectively and mutually matched with the first valve seat and the second valve seat; a first gap is reserved between the end part of the disc small circle side of the disc and the inner wall of the semi-circular wear resistant lining plate; and a second gap is reserved between the end part of the disc large circuit side and the inner wall of the valve body. The invention has the advantages that the structure is simple, and an asymmetrical disc and asymmetrical valve body structure is adopted to replace a traditional universal symmetrical structure; material layouts are reasonable, thus cost is saved, and the service life of the valve body is prolonged; an original sealing property is not changed; and the process is simple and easy to apply.
Description
Technical field
The present invention relates to a kind of dust and gas butterfly valve, relate in particular to a kind of bias lining type wear resistant dust and gas butterfly valve.
Background technique
Dust and gas butterfly valve usually is used to recovery, exchange, dedusting and waste heat recycling of blast furnace gas in the iron and steel metallurgical industry.In order to regulate air quantity, butterfly plate often is in various opening angles position, when the opening angle of butterfly plate was spent less than 20, high speed dirt entraining air stream was stopped by butterfly plate, the offset straight line direction, directly rush at valve body, cause the body cavity part seriously to wash away, even ultrashort time wearing and tearing penetrate, to valve is scrapped in advance, the pipe network blowing-out stops production, in advance maintenance.
Summary of the invention
Technical problem to be solved by this invention is: provide a kind of simple in structure, working life long bias lining type wear resistant dust and gas butterfly valve.
In order to solve the problems of the technologies described above, the technical solution used in the present invention is: bias lining type wear resistant dust and gas butterfly valve, comprise: valve body, in valve body, be provided with valve shaft, valve body is provided with some mounting holes, the valve shaft of valve inner is provided with butterfly plate, butterfly plate is made up of butterfly plate roundlet side and butterfly plate great circle side, be provided with the semicircular arc abrasion-proof backing block that cooperatively interacts with valve interior wall at described valve body internal fixation, on the inwall of the inwall of semicircular arc abrasion-proof backing block and valve body one side, be set with first valve seat and second valve seat respectively, the butterfly plate roundlet side of butterfly plate and butterfly plate great circle side cooperatively interact with first valve seat and second valve seat respectively, between the end of the butterfly plate roundlet side of butterfly plate and semicircular arc abrasion-proof backing block inwall, leave first gap, between the end of butterfly plate great circle side and valve interior wall, leave second gap.
Advantage of the present invention is: the bias lining type wear resistant dust and gas butterfly valve of said structure, simple in structure, adopt asymmetric butterfly plate and asymmetric valve body structure, the symplex structure that replaces traditional common, the material rational deployment is saved cost, has prolonged the working life of valve body, original sealability is constant, and is simple for process.
Description of drawings
Fig. 1 is the structural representation of bias lining type wear resistant dust and gas butterfly valve of the present invention.
Fig. 2 is the A-A direction sectional structure schematic representation of Fig. 1.
Among the figure: 1, valve body, 2, valve shaft, 3, mounting hole, 4, butterfly plate, 41, butterfly plate roundlet side, 42, butterfly plate great circle side, 5, the semicircular arc abrasion-proof backing block, 6, first valve seat, 7, second valve seat, 8, first gap, 9, second gap.
Embodiment
Describe particular content of the present invention in detail below in conjunction with the drawings and specific embodiments.
As Fig. 1, shown in Figure 2, bias lining type wear resistant dust and gas butterfly valve, comprise: valve body 1, in valve body 1, be provided with valve shaft 2, valve body 1 is provided with some mounting holes 3, the valve shaft 2 of valve body 1 inside is provided with butterfly plate 4, butterfly plate 4 is made up of butterfly plate roundlet side 41 and butterfly plate great circle side 42, be provided with the semicircular arc abrasion-proof backing block 5 that cooperatively interacts with valve body 1 inwall at described valve body 1 internal fixation, on the inwall of the inwall of semicircular arc abrasion-proof backing block 5 and valve body 1 one sides, be set with first valve seat 6 and second valve seat 7 respectively, the butterfly plate roundlet side 41 of butterfly plate 4 and butterfly plate great circle side 42 cooperatively interact with first valve seat 6 and second valve seat 7 respectively, between the end of the butterfly plate roundlet side 41 of butterfly plate 4 and semicircular arc abrasion-proof backing block 5 inwalls, leave first gap 8, between the end of butterfly plate great circle side 42 and valve body 1 inwall, leave second gap 9.
When the bias lining type wear resistant dust and gas butterfly valve of said structure is worked, when rising to block to the dirt gas medium, bias lining type wear resistant dust and gas butterfly valve does the time spent, butterfly plate 4 is located the complete shut-down position in valve body 1 inner chamber, first gap, 8 appropriateness between the end of butterfly plate roundlet side 41 and semicircular arc abrasion-proof backing block 5 inwalls, and it is identical mutually with first valve seat 6, second gap, 9 appropriateness between butterfly plate great circle side 42 and valve body 1 inwall, and identical mutually with first valve seat 7, guarantee the reliable seal action of butterfly valve; When bias lining type wear resistant dust and gas butterfly valve plays regulating action to dirt gas medium air-flow; rotary valve shaft 2; make butterfly plate 4 open arbitrary minute angle; the dirt air-flow acutely is flushed on semicircular arc abrasion-proof backing block 5 inwalls fast; protected valve body 1 inwall; make valve body 1 inwall avoid acutely washing away, prolonged the working life of valve body 1.
Claims (1)
1. bias lining type wear resistant dust and gas butterfly valve, comprise: valve body (1), in valve body (1), be provided with valve shaft (2), valve body (1) is provided with some mounting holes (3), the inner valve shaft (2) of valve body (1) is provided with butterfly plate (4), butterfly plate (4) is made up of butterfly plate roundlet side (41) and butterfly plate great circle side (42), it is characterized in that: be provided with the semicircular arc abrasion-proof backing block (5) that cooperatively interacts with valve body (1) inwall at described valve body (1) internal fixation, on the inwall of the inwall of semicircular arc abrasion-proof backing block (5) and valve body (1) one side, be set with first valve seat (6) and second valve seat (7) respectively, the butterfly plate roundlet side (41) of butterfly plate (4) and butterfly plate great circle side (42) cooperatively interact with first valve seat (6) and second valve seat (7) respectively, between the end of the butterfly plate roundlet side (41) of butterfly plate (4) and semicircular arc abrasion-proof backing block (5) inwall, leave first gap (8), between the end of butterfly plate great circle side (42) and valve body (1) inwall, leave second gap (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910144529XA CN101713466B (en) | 2009-08-14 | 2009-08-14 | Bias lining type wear resistant dust and gas butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910144529XA CN101713466B (en) | 2009-08-14 | 2009-08-14 | Bias lining type wear resistant dust and gas butterfly valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101713466A CN101713466A (en) | 2010-05-26 |
| CN101713466B true CN101713466B (en) | 2011-05-18 |
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ID=42417356
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910144529XA Expired - Fee Related CN101713466B (en) | 2009-08-14 | 2009-08-14 | Bias lining type wear resistant dust and gas butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101713466B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102080729A (en) * | 2011-01-31 | 2011-06-01 | 吉林恒联精密铸造科技有限公司 | Regulating valve |
| CN106402412A (en) * | 2016-11-21 | 2017-02-15 | 河钢股份有限公司承德分公司 | Cutting device for medium of dust removal pipeline and manufacturing method of cutting device |
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2009
- 2009-08-14 CN CN200910144529XA patent/CN101713466B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN101713466A (en) | 2010-05-26 |
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Granted publication date: 20110518 Termination date: 20150814 |
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