CN101956831A - Solid metal three-eccentric butterfly valve - Google Patents
Solid metal three-eccentric butterfly valve Download PDFInfo
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- CN101956831A CN101956831A CN 201010501353 CN201010501353A CN101956831A CN 101956831 A CN101956831 A CN 101956831A CN 201010501353 CN201010501353 CN 201010501353 CN 201010501353 A CN201010501353 A CN 201010501353A CN 101956831 A CN101956831 A CN 101956831A
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Abstract
The invention relates to a butterfly valve, in particular to a solid metal three-eccentric butterfly valve. According to the technical scheme provided by the invention, the solid metal three-eccentric butterfly valve comprises a valve body which is internally provided with a valve cavity, a first opening and a second opening are respectively formed at both ends of the valve cavity and communicated, a valve plate is arranged in the valve cavity corresponding to one end where the second opening is formed, the valve plate is fixedly connected with a transmission shaft, a valve seat is arranged at one end of the valve plate and provided with a seat pressure ring which is fixedly connected with the valve seat and the valve body through screws, and the valve plate can rotate relative to the valve seat. The invention can prolong the service life of the valve, ensure the stable performance of the valve and the safe and stable operation of the equipment device and improve the production efficiency.
Description
Technical field
The present invention relates to a kind of butterfly valve, especially a kind of solid metal three eccentric butterfly valve.
Background technique
Along with the continuous development of domestic control valve technology, butterfly valve has become one of industrial control process main flow control apparatus, in the process control to the requirement of the reliability of butterfly valve also in continuous raising.This just has higher requirement to reliability, the stability of butterfly valve.In prior art, the seal ring of existing three eccentric butterfly valve all adopts metallic graphite carbon interlayer seal ring, this class seal ring relies on the elasticity of the metal ring in the sandwich structure and graphite is realized valve to the compensation of sealing surface sealing, graphite material can't antiscour, cause the valve applications scope narrow, can not adapt to the High Pressure Difference operating mode, graphite layer is in a single day damaged in the seal ring, valve will produce interior leakage accident, causes economic loss.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, a kind of solid metal three eccentric butterfly valve is provided, it can prolong valve working life, guarantees that valve performance is stable, guarantees that apparatus moves safely and smoothly, enhances productivity.
According to technological scheme provided by the invention, described solid metal three eccentric butterfly valve comprises valve body, is provided with valve pocket in the described valve body, and the two ends of described valve pocket form first opening and second opening respectively; Described first opening is connected with second opening; Be provided with valve plate corresponding to an end that forms second opening in the valve pocket, described valve plate is provided with fixedly connected transmission shaft; One end of described valve plate is provided with valve seat, and described valve seat is provided with a trim ring, and described seat trim ring utilizes screw and valve seat, valve body to be fastened and connected; Described valve plate can rotate relative to valve seat.
Described valve plate is provided with seal ring corresponding to the end that valve seat is set, and described seal ring is provided with the ring trim ring; Described ring trim ring, seal ring utilize bolt and valve plate to be fastened and connected.Described valve seat corresponding to and valve body between be provided with the valve seat pad.Be provided with the trim ring pad between described seat trim ring and valve body.Be provided with the seal ring pad between described seal ring and valve plate.The material of described valve seat comprises Hastelloy or Ying Kenaier.The material of described seal ring comprises Hastelloy or Ying Kenaier.
Of the present invention having a few:
1, actuator's moment of torsion drives the transmission shaft rotation, even sufficient elasticity distortion is provided for the seal ring circumference conical surface, and seal ring and valve seat fit tightly, good airproof performance;
2, since seal ring and valve seat be solid metal and process, can select high temperature resistant, corrosion-resistant, the wear-resisting anti-particulate metal material that washes away of some application for use, or the sealing surface of common stainless steel material carried out different materials built-up welding, spraying, reach case-hardened effect, improved high temperature resistant, corrosion-resistant, the wear-resisting abrasion resistance energy of valve seat and seal ring, can be applicable to high temperature, high pressure, High Pressure Difference, corrosivity operating mode, expanded the application area of the type valve;
3, owing to seal ring, valve seat are the solid metal structure, the natural fire-proof function that has of valve;
4, this structure easy removal, part is easily changed, and is easy to maintenance.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Embodiment
The invention will be further described below in conjunction with concrete drawings and Examples.
As shown in Figure 1: the present invention includes valve body 1, valve pocket 2, first opening 3, valve plate 4, valve seat pad 5, seal ring 6, bolt 7, second opening 8, transmission shaft 9, ring trim ring 10, seal ring pad 11, screw 12, seat trim ring 13, trim ring pad 14 and valve seat 15.
As shown in Figure 1: be provided with valve pocket 2 in the described valve body 1, the two ends of described valve pocket 2 form first opening 3 and second opening 8 respectively; Described first opening 3 utilizes valve pocket 2 to be connected with second opening 8; Circulation medium can flow to second opening 8 or flow to first opening 3 from second opening 8 from first opening 3.Be provided with valve plate 4 in the described valve pocket 2, described valve plate 4 is provided with fixedly connected transmission shaft 9; Transmission shaft 9 utilizes bearing pin to fixedly connected with valve plate 4; Transmission shaft 9 links to each other with actuator corresponding to the other end that links to each other with valve plate 4, and actuator drives transmission shaft 9 and rotates.
Described valve plate 4 is provided with seal ring 6, and described seal ring 6 is enclosed within on the valve plate 4.Seal ring 6 valve bodies 1 are corresponding to the end that second opening 8 is set.4 of seal ring 6 and valve plates are provided with seal ring pad 11, and seal ring 6 is provided with ring trim ring 10, and described ring trim ring 10 utilizes bolt 7 and valve plate 4 to be fastened and connected.The edge of seal ring 6 forms cone structure.Also be provided with valve seat 15 on the valve plate 4, valve seat 15 is enclosed within valve plate 4 corresponding to the end that seal ring 6 is set.Valve seat 15 also is a cone structure with seal ring 6 corresponding inwalls; The conical surface on the valve seat 15 is corresponding with the conical surface at seal ring 6 edges, makes the valve seat 15 and the end of seal ring 6 form effective sealing configuration.The end of valve seat 15 contacts with valve body 1 inwall; And valve seat 15 is provided with valve seat pad 5 with valve body 1 contacted inwall.Described valve seat 15 utilizes seat trim ring 13 to be pressed in the valve body 1.Between seat trim ring 13 and valve body 1 contacted inwall trim ring pad 14 is set, described seat trim ring 13 is provided with screw 12; Described screw 12 penetrates in the valve body 1 after passing a trim ring 13, valve seat 15, and seat trim ring 13, valve seat 15 are fastened and connected with valve body 1.Described valve plate 4 can rotate relative to valve seat 15.
During installation, seal ring pad 11 is installed in valve plate 4 seal grooves, the endoporus of seal ring 6 aligns with the location cylindrical of valve plate 4 upper end portions, and between the location cylindrical of the endoporus of seal ring 6 and valve plate 4 ends the adjusting play is arranged, and ring trim ring 10 is overlying on the seal ring 6; Ring trim ring 10 is fixed on the valve plate 2 by bolt 7, and bolt 7 wouldn't be tightened, at this moment, and about seal ring 6 energy, rotatablely move.Valve seat pad 14 is mounted in the seal groove of valve seat 15, valve seat 15 is put into the valve seat installation position of valve body 1, according to adding ready-made aperture mark on valve seat 15 in man-hour, about, rotation slide and movable valve base 7, the sealing tilted conical surface of valve seat 15 and the preliminary centering of the tilted conical surface of seal ring 6 are located; Fitting seat trim ring 13 on valve seat 15, seat trim ring 13 utilizes screw 12 and valve body 1 to fix, but screw 12 and valve body 1 is not tightened.When transmission shaft 9 with after final controlling element is connected, drive valve plate 4 slow switch motions by final controlling element, the adjustment centering makes the sealing cone of seal ring 6 overlap fully with the sealing cone of valve seat 15, tights a bolt 7 and screw 12, finishes the installation of whole butterfly valve.
On the described valve plate 2 transmission shaft 9 is set, transmission shaft 9 links to each other with actuator.Actuator drives transmission shaft 9 and rotates, and gives valve plate 2 by transmission shaft 9 transmitting torques, allows the seal ring 6 whole circle sealing the margins that are contained on the valve plate 2 produce certain elastic deformation, thereby fits tightly the good seal performance of valve with the sealing surface of the valve seat 15 that matches.
Because seal ring 6 is solid metal with valve seat 15 and processes, can select high temperature resistant, corrosion-resistant, the wear-resisting anti-particulate metal materials that wash away of some application (as Ha Shi C, Ying Kenaier) for use, or the sealing surface of common stainless steel material carried out different materials (safe like that Lay) built-up welding, spraying (as sprayed wc, Ni60 etc.), reach case-hardened effect, improved high temperature resistant, corrosion-resistant, the wear-resisting abrasion resistance energy of valve seat and seal ring, can be applicable to high temperature, high pressure, High Pressure Difference, corrosivity operating mode, expanded the application area of the type valve.
This The Application of Technology makes valve when maintenance and repair, simply, quick and easy, need not other component in the whole deck valve body of dismounting, only need unclamp the screw 12 and bolt 7 of a trim ring 13 and ring trim ring 10 correspondences, be easily damaged partss such as replaceable valve seat pad 5, valve seat 15, trim ring pad 14, seal ring pad 11, seal ring 6, time saving and energy saving.
As shown in Figure 1: during work, therefore the center line of described transmission shaft 9 and valve body 1 can drive valve plates 4 by transmission shaft 9 and rotate not on same straight line.Actuator drives transmission shaft 9 and rotates, and the rotation of transmission shaft 9 can drive valve plate 4 and rotate relative to valve seat 15; When valve plate 4 turns to several angle, first opening 3 can be connected with second opening 8 or block.When first opening 3 was connected with second opening 8, flowing medium can flow to second opening 8 or flow to first opening 3 from second opening 8 from first opening 3; When first opening 3 and second opening 8 during by valve plate 14 blocking-up, flowing medium will be blocked at first opening 3 or second opening 8.
The technology of the present invention of the present invention adopts the effective sealing that realizes valve that fits tightly of seal ring 6 and valve seat 15 oblique cone sealing surfaces.Seal ring 6 makes up with the solid metal material variation of valve seat 15, surface treatment, has expanded the application area of valve.。
Claims (5)
1. solid metal three eccentric butterfly valve, comprise valve body (1), be provided with valve pocket (2) in the described valve body (1), the two ends of described valve pocket (2) form first opening (3) and second opening (8) respectively, and described first opening (3) is connected with second opening (8); Be provided with valve plate (4) corresponding to an end that forms second opening (8) in the valve pocket (2), described valve plate (4) is provided with fixedly connected transmission shaft (9); It is characterized in that: an end of described valve plate (4) is provided with valve seat (15), and described valve seat (15) is provided with a trim ring (13), and described seat trim ring (13) utilizes screw (12) and valve seat (15), valve body (1) to be fastened and connected; Described valve plate (4) can rotate relative to valve seat (15).
2. solid metal three eccentric butterfly valve according to claim 1 is characterized in that: described valve plate (4) is provided with seal ring (6) corresponding to the end that valve seat (15) is set, and described seal ring (6) is provided with ring trim ring (10); Described ring trim ring (10), seal ring (6) utilize bolt (7) and valve plate (4) to be fastened and connected.
3. solid metal three eccentric butterfly valve according to claim 1 is characterized in that: described valve seat (15) corresponding to and valve body (1) between be provided with valve seat pad (5).
4. solid metal three eccentric butterfly valve according to claim 1 is characterized in that: be provided with trim ring pad (14) between described seat trim ring (13) and valve body (1).
5. solid metal three eccentric butterfly valve according to claim 2 is characterized in that: be provided with seal ring pad (11) between described seal ring (6) and valve plate (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010501353 CN101956831A (en) | 2010-10-11 | 2010-10-11 | Solid metal three-eccentric butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010501353 CN101956831A (en) | 2010-10-11 | 2010-10-11 | Solid metal three-eccentric butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101956831A true CN101956831A (en) | 2011-01-26 |
Family
ID=43484342
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010501353 Pending CN101956831A (en) | 2010-10-11 | 2010-10-11 | Solid metal three-eccentric butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101956831A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104896121A (en) * | 2015-05-25 | 2015-09-09 | 蚌埠南自仪表有限公司 | Valve plate and valve body sealing cooperation structure of three-eccentric hard sealing butterfly valve |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5181690A (en) * | 1990-08-16 | 1993-01-26 | Xomox International Gmbh & Co. | Shut-off valve |
| CN2366626Y (en) * | 1999-03-26 | 2000-03-01 | 郑州蝶阀集团有限公司 | Three-D eccentric metallic sealing butterfly valve |
| CN2610178Y (en) * | 2003-04-15 | 2004-04-07 | 吴斌 | Three-D eccentric metal sealing butterfly valve |
| JP2005127412A (en) * | 2003-10-23 | 2005-05-19 | Tomoe Tech Res Co | Fire-resisting eccentric butterfly valve and seat ring for use in it |
| CN2903595Y (en) * | 2005-12-26 | 2007-05-23 | 陈国顺 | Positive pyramid float valve seat dual direction sealing butterfly valve |
| CN201326750Y (en) * | 2008-11-20 | 2009-10-14 | 无锡智能自控工程有限公司 | Triple eccentric high-pressure metal seal butterfly valve |
| CN201377599Y (en) * | 2009-03-12 | 2010-01-06 | 上海一核阀门制造有限公司 | Integrated sealing ring suitable for triple eccentric butterfly valve |
| CN201858367U (en) * | 2010-10-11 | 2011-06-08 | 无锡智能自控工程有限公司 | Solid metal tri-eccentric butterfly valve |
-
2010
- 2010-10-11 CN CN 201010501353 patent/CN101956831A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5181690A (en) * | 1990-08-16 | 1993-01-26 | Xomox International Gmbh & Co. | Shut-off valve |
| CN2366626Y (en) * | 1999-03-26 | 2000-03-01 | 郑州蝶阀集团有限公司 | Three-D eccentric metallic sealing butterfly valve |
| CN2610178Y (en) * | 2003-04-15 | 2004-04-07 | 吴斌 | Three-D eccentric metal sealing butterfly valve |
| JP2005127412A (en) * | 2003-10-23 | 2005-05-19 | Tomoe Tech Res Co | Fire-resisting eccentric butterfly valve and seat ring for use in it |
| CN2903595Y (en) * | 2005-12-26 | 2007-05-23 | 陈国顺 | Positive pyramid float valve seat dual direction sealing butterfly valve |
| CN201326750Y (en) * | 2008-11-20 | 2009-10-14 | 无锡智能自控工程有限公司 | Triple eccentric high-pressure metal seal butterfly valve |
| CN201377599Y (en) * | 2009-03-12 | 2010-01-06 | 上海一核阀门制造有限公司 | Integrated sealing ring suitable for triple eccentric butterfly valve |
| CN201858367U (en) * | 2010-10-11 | 2011-06-08 | 无锡智能自控工程有限公司 | Solid metal tri-eccentric butterfly valve |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104896121A (en) * | 2015-05-25 | 2015-09-09 | 蚌埠南自仪表有限公司 | Valve plate and valve body sealing cooperation structure of three-eccentric hard sealing butterfly valve |
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Application publication date: 20110126 |