CN201202828Y - Pneumatic diaphragm valve - Google Patents
Pneumatic diaphragm valve Download PDFInfo
- Publication number
- CN201202828Y CN201202828Y CNU2008200664229U CN200820066422U CN201202828Y CN 201202828 Y CN201202828 Y CN 201202828Y CN U2008200664229 U CNU2008200664229 U CN U2008200664229U CN 200820066422 U CN200820066422 U CN 200820066422U CN 201202828 Y CN201202828 Y CN 201202828Y
- Authority
- CN
- China
- Prior art keywords
- valve
- flap
- air bladder
- sealing
- valve seat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a pneumatic film valve which comprises a valve body; a valve flap is arranged in the valve body; a valve cover is connected on the valve body; the valve flap is connected with the valve rod; the other end of the valve rod is connected with a pneumatic film device; a valve base is arranged in the valve body; the section of the valve base is T-shaped; the top surface of the valve base is the second sealing surface; the hole wall of the valve base is the first sealing surface; the lower section of the valve flap is T-shaped; the contact surface of the valve flap and the valve base hole wall is the first sealing surface; the contact surface of the valve flap and the valve base top surface is the second sealing surface; a sealing device is arranged on the contact surface of the valve flap and the valve base top surface. The pneumatic film valve adopts the double sealing structure between the valve plate and the valve base so that the sealing effect of the valve is greatly improved; the second seal adopts the buffer sealing mode to reduce the impact and abrasion on the sealing surface and facilitate maintenance. The pneumatic film valve has the advantages of good sealing effect, long service life, convenient maintenance, low maintenance cost, being applicable to chemical and metallurgical industries.
Description
Technical field
The utility model belongs to the pneumatic valve on the industries such as being applied to chemical industry, metallurgy, is specifically related to a kind of air bladder valve.
Background technique
What the sealing of existing air bladder valve relied on is that flap and valve seat hole wall surface of contact seal, and promptly has only one sealing.In actual motion, particularly under some specific condition, owing to the foreign material in high temperature, the high velocity air (as superheated vapor) to the washing away for a long time of sealing surface, corrode the damage that causes sealing surface, make to produce seal failure and leak.Have again in the using process of air bladder valve, when impurity in the air-flow is trapped on the sealing surface, make seal failure, produce and leak.Therefore above-mentioned air bladder valve is short working life, the maintenance cost height.
Summary of the invention
The purpose of this utility model is to provide a kind of good sealing effect, and the air bladder valve that the life-span is long is to address the above problem.
The technical solution of the utility model is: the air bladder valve, it comprises valve body, establish flap in the valve body, connect valve gap on the valve body, flap connects valve rod, and the other end of valve rod connects the air bladder device, establish valve seat in the valve body, the valve seat cross section is a T-shape, and the end face of valve seat is a secondary sealing area, and the hole wall of valve seat is a primary sealing area; The lower section of flap is a T-shape, and the surface of contact of flap and valve seat hole wall is a primary sealing area, and the surface of contact of flap and valve seat end face is a secondary sealing area, and the surface of contact of flap and valve seat end face is provided with seal arrangement.
Adopt double sealing structure between air bladder valve flap of the present utility model and the valve seat, improve the sealing effect of valve greatly, the cushion seal form is adopted in the sealing of second road, has reduced the impact and the wearing and tearing of sealing surface, and is convenient to maintenance.This valve seal is effective, and long service life is easy to maintenance, and maintenance cost is low.Be suitable for using on the industries such as chemical industry, metallurgy.
Description of drawings
Fig. 1 air bladder valve arrangement schematic representation.
Fig. 2 air bladder valve seal closing structure I enlarged diagram.
Sealing configuration I enlarged diagram during Fig. 3 air bladder opening of valves.
Fig. 4 air bladder valve seal closing structure II enlarged diagram.
Sealing configuration II enlarged diagram during Fig. 5 air bladder opening of valves.
Embodiment
As shown in Figure 1, establish flap 2 in the valve body 1, connect valve gap 3 on the valve body 1, flap 3 connects valve rod 4, and the other end of valve rod 4 connects air bladder device 5, air bladder device 5 comprises upper cavity 6, lower chamber 7 connects film apparatus between upper cavity 6 and the lower chamber 7, and film apparatus comprises film shell 8, establish film 9 on the film shell 8, establish spring 10 in the upper cavity 6.Valve rod 4 is connected with film apparatus.
Establish valve seat 11 in the valve body 1, when valve closing, seal between valve seat 11 and the flap 2.
As shown in Figure 2, valve seat 11 cross sections are T-shape, and the end face 12 of valve seat is a secondary sealing area, and the hole wall 13 of valve seat is a primary sealing area.Grooved ring 14 is established on the top of the hole wall of valve seat 11 in the present embodiment, and grooved ring 14 has increased the seal length of primary sealing area.The lower section of flap 2 is a T-shape, and flap 2 is a primary sealing area with the surface of contact 15 of valve seat hole wall 13, and flap 2 is a secondary sealing area with the surface of contact 16 of valve seat end face 12, and the surface of contact 16 of flap and valve seat end face is provided with seal arrangement 17.The corresponding grooved ring 14 contact matching formation sealing surface of establishing on boss 18 and the hole wall on the flap 2 in the present embodiment.
But seal arrangement 17 can also be the compensation sealing device, and shown in Fig. 4,5, flap 2 is connected to form by bolt 2-3 by last flap 2-1 and lower Disc 2-2 in the present embodiment.Offer closure gasket groove or closed hole 2-4 on the lower Disc 2-2, closure gasket groove or closed hole 2-4 cross section are inverted cones, closure gasket groove or closed hole 2-4 are provided with spring 31 and seal ring or seal ring 2-5, and spring 31 contacts with seal ring or seal ring 2-5, and present embodiment adopts seal ring 2-5.Spring 31 is a wavy spring.
Claims (9)
1, a kind of air bladder valve, it comprises valve body, establish flap in the valve body, connect valve gap on the valve body, flap connects valve rod, and the other end of valve rod connects the air bladder device, it is characterized in that establishing in the valve body valve seat, the valve seat cross section is a T-shape, and the end face of valve seat is a secondary sealing area, and the hole wall of valve seat is a primary sealing area; The lower section of flap is a T-shape, and the surface of contact of flap and valve seat hole wall is a primary sealing area, and the surface of contact of flap and valve seat end face is a secondary sealing area, and the surface of contact of flap and valve seat end face is provided with seal arrangement.
2, air bladder valve according to claim 1, the seal arrangement that it is characterized in that described flap and valve seat end face surface of contact comprise and are opened in closure gasket groove or closed hole on the flap, are provided with Sealing in closure gasket groove or the closed hole.
3, as air bladder valve as described in the claim 2, it is characterized in that described Sealing comprises elastic component, elastic component is divided into seal ring or seal ring.
4, air bladder valve as claimed in claim 1 or 2, but it is characterized in that described seal arrangement is the compensation sealing device.
5, as air bladder valve as described in the claim 4, it is characterized in that flap is connected to form by last flap and lower Disc.Offer closure gasket groove or closed hole on the lower Disc, but the compensation sealing device is located in closure gasket groove or the closed hole.
6, as air bladder valve as described in the claim 5, it is characterized in that closure gasket groove or closed hole cross section are inverted cones.
7, as air bladder valve as described in the claim 5, but it is characterized in that described compensation sealing device comprises that closure gasket groove or closed hole are provided with spring and seal ring or seal ring, spring contacts with seal ring or seal ring.
8, air bladder valve according to claim 1 is characterized in that grooved ring is established on the top of the hole wall of described valve seat, and corresponding grooved ring contact matching of establishing on boss and the hole wall forms sealing surface on the flap.
9, as air bladder valve as described in the claim 3, it is characterized in that seal ring and elastic component are connected on the flap by bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200664229U CN201202828Y (en) | 2008-04-10 | 2008-04-10 | Pneumatic diaphragm valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200664229U CN201202828Y (en) | 2008-04-10 | 2008-04-10 | Pneumatic diaphragm valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201202828Y true CN201202828Y (en) | 2009-03-04 |
Family
ID=40425139
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200664229U Expired - Fee Related CN201202828Y (en) | 2008-04-10 | 2008-04-10 | Pneumatic diaphragm valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201202828Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103542129A (en) * | 2012-07-09 | 2014-01-29 | 上海阀门五厂有限公司 | Biological antibacterial pneumatic tank bottom valve |
| CN105090530A (en) * | 2015-07-23 | 2015-11-25 | 苏州科迪流体控制设备有限公司 | Stop valve |
| CN106286853A (en) * | 2016-08-23 | 2017-01-04 | 成都欧浦特控制阀门有限公司 | Service life length control valve |
| CN108930821A (en) * | 2018-09-05 | 2018-12-04 | 河南盛誉实业有限公司 | A kind of ceramics Bidirectional intelligent commutator |
| CN112302735A (en) * | 2020-10-26 | 2021-02-02 | 华北电力科学研究院有限责任公司 | Steam turbine main valve auxiliary system and control method thereof |
-
2008
- 2008-04-10 CN CNU2008200664229U patent/CN201202828Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103542129A (en) * | 2012-07-09 | 2014-01-29 | 上海阀门五厂有限公司 | Biological antibacterial pneumatic tank bottom valve |
| CN105090530A (en) * | 2015-07-23 | 2015-11-25 | 苏州科迪流体控制设备有限公司 | Stop valve |
| CN106286853A (en) * | 2016-08-23 | 2017-01-04 | 成都欧浦特控制阀门有限公司 | Service life length control valve |
| CN108930821A (en) * | 2018-09-05 | 2018-12-04 | 河南盛誉实业有限公司 | A kind of ceramics Bidirectional intelligent commutator |
| CN112302735A (en) * | 2020-10-26 | 2021-02-02 | 华北电力科学研究院有限责任公司 | Steam turbine main valve auxiliary system and control method thereof |
| CN112302735B (en) * | 2020-10-26 | 2022-08-02 | 华北电力科学研究院有限责任公司 | Steam turbine main valve auxiliary system and control method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: WUHAN LUOPU VALVE SCIENCE CO., LTD. Free format text: FORMER OWNER: WUHAN CITY TONGTAI METALLURGY CRAFT EQUIPMENT ROMPLAST-14 O., LTD Effective date: 20090807 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20090807 Address after: A, three gate, 430080 Star Road, Youyi Road, Qingshan District, Hubei, Wuhan Province, 1103 Patentee after: Wuhan Universal Valve Technology Co., Ltd. Address before: A, three gate, 430080 Star Road, Youyi Road, Qingshan District, Hubei, Wuhan Province, 1103 Patentee before: Wuhan Tongtai Metallurgy Process Equipment Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090304 Termination date: 20130410 |