CN102494145A - Bidirectional full metal hard seal butterfly valve - Google Patents
Bidirectional full metal hard seal butterfly valve Download PDFInfo
- Publication number
- CN102494145A CN102494145A CN201110412312XA CN201110412312A CN102494145A CN 102494145 A CN102494145 A CN 102494145A CN 201110412312X A CN201110412312X A CN 201110412312XA CN 201110412312 A CN201110412312 A CN 201110412312A CN 102494145 A CN102494145 A CN 102494145A
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- valve
- butterfly
- butterfly plate
- valve body
- hard seal
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Abstract
The invention relates to a valve, in particular to a seal structure inside the valve. A bidirectional full metal hard seal butterfly valve comprises a valve body, a butterfly plate, a valve seat, a valve rod, a pin, a metal gasket, packing, a packing press cover and an adjusting bolt. The valve rod is connected with the butterfly plate through the pin, and the rotation center of the valve rod and a shaft hole arranged on the valve body are located at the same return center. The butterfly plate is made of integrated metal materials and located in a flow channel of the valve body, and the seal face of the butterfly plate is formed by processing a butterfly plate body or through bed welding of alloy materials. The valve seat is an annular integral metal ring and is connected with the valve body through the bolt, the metal gasket is arranged between the adjacent planes of the valve seat and the valve body, one side of an outlet of the valve body is provided with a step hole concentric with a valve body channel, and the cylindrical face of the step hole is in mutual match with the cylindrical face on the outer side of the valve seat. The bidirectional full metal hard seal butterfly valve is reliable in seal performance, small in the number of parts, simple in processing technology, high in production efficiency and suitable for volume production or mass production.
Description
Technical field
The present invention relates to a kind of valve, particularly the sealing configuration of valve internal.
Background technique
Present modal hard seal butterfly valve is three eccentric multilayered structures, and butterfly valve seat is positioned on the valve body and can not be split, and is unadjustable; Seal ring is that sheet stainless steel coil and graphite flake are composited; Seal ring is fixed through pressure ring and bolt and butterfly plate.
The drawback of the maximum of this structure is: valve uses the initial stage, and sealability is better.But along with medium constantly washes away seal ring, cause graphite flake to come off, cause valve leak, the inefficacy of seal ring causes the valve complete machine to scrap.
Because the valve seat of three eccentric multi-level butterfly valves is the part that valve body can not be split; In the time of processing valve seat (particularly large-diameter butterfly valve valve seat) sealing surface; Whole valve body all will be rotated, and just can process complete sealing surface of seat, and this just requires the turning radius of lathe enough big; So not only improve cost of production, and caused resource and energy waste.
Other three eccentric multi-level butterfly valve butterfly plate assembly parties are by butterfly plate, pressure ring, and seal ring, bolt, a plurality of accessories such as pad are formed, and need multiple clamping processing.This structure manufacturing procedure is many, complex process, and manufacturing efficiency is low.
Summary of the invention
The invention discloses a kind of two-way full-metallic hard seal butterfly valve, aim to provide the two way sealed reliable performance, number of fitting parts is few, and processing technology is simple, and manufacturing efficiency is high, the butterfly valve that is suitable for producing in batches.
The object of the invention is realized through following technical measures:
A kind of two-way full-metallic hard seal butterfly valve; Comprise valve body, butterfly plate, valve seat, valve rod, pin, filler, Gland, adjusting bolt, drive unit, said valve rod is connected through pin with said butterfly plate; Axis hole on said valve rod rotating center and the said valve body is positioned at same gyration center; Said butterfly plate is that integral metal material is processed, and is positioned at said valve flowing channel, and said valve seat is a ring-type bulk metal circle; Be connected on the said valve body through said bolt, be provided with metallic shim between said valve seat and the said valve body adjacent planar.
Further structure of the present invention is:
Preferably; The two-way full-metallic hard seal butterfly valve of the present invention adopts three eccentric structures; The sealing surface cross section is tilting conical surface; The rotating center of said valve rod and said sealing surface of seat center-biased distance are A, and the rotating center of said valve rod and said valve channel center-biased distance are B, and the angle of tilting circular cone center line and valve channel center line is a °.
Preferably, said valve outlet one side has the step hole concentric with said valve channel, and the cylndrical surface of said step hole and cylndrical surface, the said valve seat outside cooperatively interact.
Preferably, said butterfly plate is that integral metal material is processed, and said butterfly plate sealing surface can be processed by said butterfly plate body, but also build-up welding alloy material.
The present invention overcomes the deficiency of existing butterfly valve product, is a kind of novel butterfly valve product that forms through technological innovation, the invention has the beneficial effects as follows:
Butterfly plate according to the invention is that integral metal material is processed, and the butterfly plate sealing surface can be processed by the butterfly plate body, but also build-up welding alloy material.When high-velocity fluid passed through, the butterfly plate sealing surface can not come off, can be by erosion, and the sealability of valve can arrive greatly and promote, and makes the same life-span of valve complete machine and pipeline.
Valve seat according to the invention is that integral metal material is processed, and fixes through bolt and said valve body.Need not process sealing surface with said valve body assembling, available anchor clamps batch process, manufacturing efficiency is high, and processing technology is simple, has interchangeability, but said sealing surface of seat build-up welding alloy material.
Valve seat of the present invention and valve body are detachable, when valve assembles, can guarantee the seal pressure between the sealing surface, thereby effectively guarantee the two way sealed performance of valve through the thickness of the said metallic shim of adjustment.
Description of drawings
Fig. 1 is the plan view of the two-way full-metallic hard seal butterfly valve of the present invention;
Fig. 2 is that the two-way full-metallic hard seal butterfly valve of the present invention is according to the cross-sectional view shown in the C-C cross section of Fig. 1;
Fig. 3 is that the two-way full-metallic hard seal butterfly valve of the present invention is according to the cross-sectional view shown in the D-D cross section of Fig. 2;
Fig. 4 is that the two-way full-metallic hard seal butterfly valve of the present invention is according to I position and placed macrostructure schematic representation shown in Figure 3.
Description of reference numerals:
1, butterfly plate, 2, valve seat, 3, valve body, 4, axle sleeve, 5, metallic shim, 6, pin; 7, valve rod, 8, filler, 9, drive unit, 10, bolt, 11, support; 12, connecting bolt, 13, hold-down bolt, 14, Gland, 15, regulate bolt, 16, lower end cap.
Embodiment
To combine accompanying drawing that the present invention is done to specify further below, but not constitute any restriction of the present invention.
Fig. 1 is the plan view of the two-way full-metallic hard seal butterfly valve of the present invention, and Fig. 2 is that the two-way full-metallic hard seal butterfly valve of the present invention is according to the cross-sectional view shown in the C-C cross section of Fig. 1.A kind of two-way full-metallic hard seal butterfly valve; Comprise valve body 3, butterfly plate 1, valve seat 2, valve rod 7, pin 6, metallic shim 5, filler 8, Gland 14, regulate bolt 15; It is characterized in that, also comprise: valve body 3, be installed in the butterfly plate 1 that is connected through pin 6 with valve rod 7 in the valve flowing channel, the valve seat 2 through regulating bolt 15 and valve body 3 connections, the metallic shim 5 between valve body 3 and valve seat 2, the axle sleeve 4 that matches with valve body 3 and valve rod 7, the support 11 that is connected through connecting bolt 12 with valve body 3, compress the Gland 14 of filler 8 and parts compositions such as drive unit 9 that is connected with support 11 with bolt 10 and lower end cap 16 through hold-down bolt 13.
More specifically, said metallic shim 5 seals between said valve body 3 and said valve seat 2.
More specifically, said butterfly plate 1 is processed for integral metal material, and butterfly plate 1 sealing surface can be processed by said butterfly plate 1 body, but also build-up welding alloy material.
More specifically, said valve seat 2 is processed for integral metal material, fixes through said adjusting bolt 15 and said valve body 3.
Fig. 1 is the plan view of the two-way full-metallic hard seal butterfly valve of the present invention, and Fig. 3 is that the two-way full-metallic hard seal butterfly valve of the present invention is according to the cross-sectional view shown in the D-D cross section of Fig. 2.The two-way full-metallic hard seal butterfly valve of the present invention adopts three eccentric structures; The sealing surface cross section is tilting conical surface; The rotating center of valve rod 7 and said valve seat 2 sealing surface center-biaseds distance are A; The rotating center of said valve rod 7 and said valve body 3 channel center's offset or dishes are B, and the angle of tilting circular cone center line and said valve body 3 channel centerlines is a °.
Fig. 4 is that the two-way full-metallic hard seal butterfly valve of the present invention is according to I position and placed macrostructure schematic representation shown in Figure 3.Said valve body 3 outlets one side has and the concentric step hole of said valve body 3 passages, and the cylndrical surface of said step hole and cylndrical surface, said valve seat 2 outside cooperatively interact.
Below in conjunction with structure of the present invention, working procedure of the present invention and working principle are described once:
Butterfly plate 1 according to the invention is processed for integral metal material, and butterfly plate 1 sealing surface can be processed by butterfly plate 1 body, but also build-up welding alloy material.When high-velocity fluid passed through, the butterfly plate sealing surface can not come off, can be by erosion, and the sealability of valve can arrive greatly and promote, and makes the same life-span of valve complete machine and pipeline.
At last, should be pointed out that above embodiment only is the more representational example of the present invention.Obviously, the invention is not restricted to the foregoing description, many distortion can also be arranged.Every foundation technical spirit of the present invention all should be thought to belong to protection scope of the present invention to any simple modification, equivalent variations and modification that above embodiment did.
Claims (4)
1. two-way full-metallic hard seal butterfly valve; Comprise valve body, butterfly plate, valve seat, valve rod, pin, filler, Gland, adjusting bolt, drive unit, said valve rod is connected through pin with said butterfly plate; Axis hole on said valve rod rotating center and the said valve body is positioned at same gyration center; It is characterized in that: said butterfly plate is that integral metal material is processed, and is positioned at said valve flowing channel, and said valve seat is a ring-type bulk metal circle; Be connected on the said valve body through said bolt, be provided with metallic shim between said valve seat and the said valve body adjacent planar.
2. according to the said two-way full-metallic hard seal butterfly valve of claim 1; It is characterized in that: the sealing surface cross section is tilting conical surface; The rotating center of said valve rod and said sealing surface of seat center-biased distance are A; The rotating center of said valve rod and said valve channel center-biased distance are B, and the angle of tilting circular cone center line and valve channel center line is a °.
3. according to the said two-way full-metallic hard seal butterfly valve of claim 1, it is characterized in that: said valve outlet one side has the step hole concentric with said valve channel, and the cylndrical surface of said step hole and cylndrical surface, the said valve seat outside cooperatively interact.
4. according to the said two-way full-metallic hard seal butterfly valve of claim 1, it is characterized in that: said butterfly plate is that integral metal material is processed, and said butterfly plate sealing surface can be processed by said butterfly plate body, but also build-up welding alloy material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110412312XA CN102494145A (en) | 2011-12-03 | 2011-12-03 | Bidirectional full metal hard seal butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110412312XA CN102494145A (en) | 2011-12-03 | 2011-12-03 | Bidirectional full metal hard seal butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102494145A true CN102494145A (en) | 2012-06-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110412312XA Pending CN102494145A (en) | 2011-12-03 | 2011-12-03 | Bidirectional full metal hard seal butterfly valve |
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| Country | Link |
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| CN (1) | CN102494145A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110735952A (en) * | 2019-11-25 | 2020-01-31 | 方正阀门集团有限公司 | Double-flap check valve |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2212111Y (en) * | 1995-01-27 | 1995-11-08 | 鹿彪 | Metal hard sealing butterfly valve |
| CN2244121Y (en) * | 1995-12-26 | 1997-01-01 | 沈永达 | Metal hard seal material butterfly valve |
| CN202048221U (en) * | 2011-05-19 | 2011-11-23 | 宣达实业集团浙江耐森蝶阀有限公司 | Bidirectional pressure bearing metal sealing butterfly valve having movable valve seat |
| CN202349233U (en) * | 2011-12-03 | 2012-07-25 | 宣达实业集团浙江耐森阀业有限公司 | Bidirectional full-metal hard sealing butterfly valve |
-
2011
- 2011-12-03 CN CN201110412312XA patent/CN102494145A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2212111Y (en) * | 1995-01-27 | 1995-11-08 | 鹿彪 | Metal hard sealing butterfly valve |
| CN2244121Y (en) * | 1995-12-26 | 1997-01-01 | 沈永达 | Metal hard seal material butterfly valve |
| CN202048221U (en) * | 2011-05-19 | 2011-11-23 | 宣达实业集团浙江耐森蝶阀有限公司 | Bidirectional pressure bearing metal sealing butterfly valve having movable valve seat |
| CN202349233U (en) * | 2011-12-03 | 2012-07-25 | 宣达实业集团浙江耐森阀业有限公司 | Bidirectional full-metal hard sealing butterfly valve |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110735952A (en) * | 2019-11-25 | 2020-01-31 | 方正阀门集团有限公司 | Double-flap check valve |
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Application publication date: 20120613 |