CN2856618Y - Kernel-glass pneumatic butterfly valve - Google Patents
Kernel-glass pneumatic butterfly valve Download PDFInfo
- Publication number
- CN2856618Y CN2856618Y CN 200520078190 CN200520078190U CN2856618Y CN 2856618 Y CN2856618 Y CN 2856618Y CN 200520078190 CN200520078190 CN 200520078190 CN 200520078190 U CN200520078190 U CN 200520078190U CN 2856618 Y CN2856618 Y CN 2856618Y
- Authority
- CN
- China
- Prior art keywords
- valve
- butterfly valve
- valve body
- pneumatic
- kernel
- 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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- Fluid-Driven Valves (AREA)
- Lift Valve (AREA)
Abstract
The utility model provides a kernel-glass pneumatic butterfly valve for nuclear power station comprising a pneumatic device, a bracket, a gland cover, a packing assembly, a valve body, a butterfly plate, a sealing ring , and a press plate. Wherein the sealing ring is mounted on the valve body by the press plate. The sealing ring can be replaced only by detaching the press plate without disassembling the valve. The pneumatic device adopts a spring reset single action pneumatic device. This utility model has useful effects of convenient maintenance, simple structure, and high system security.
Description
Affiliated technical field
The utility model relates to a kind of nuclear level Pneumatic butterfly valve, particularly relates to the Pneumatic butterfly valve that a kind of nuclear power station uses.
Background technique
Using the nuclear level Pneumatic butterfly valve of the external import of using at nuclear power station at present, all is the structure that adopts center line line with rubber form, and valve shaft passes seal ring, valve all must be disintegrated when changing seal ring and just can carry out, and safeguards very inconvenience.
Summary of the invention
Safeguard the deficiency of inconvenience in order to overcome existing used in nuclear power station nuclear level Pneumatic butterfly valve, the utility model provides a kind of nuclear level Pneumatic butterfly valve easy to maintenance.
The technological scheme that its technical problem that solves the utility model adopts is a kind of nuclear level Pneumatic butterfly valve, comprise Pneumatic actuator, support, Gland, filler assembly, valve body, butterfly plate, seal ring, pressing plate, seal ring is installed on the valve body by pressing plate, when changing seal ring, only need pressing plate is pulled down, promptly replaceable, and will not disintegrate by valve; Pneumatic actuator is a spring reset formula single-acting Pneumatic actuator, when system's dead electricity, and can be by spring from horizontal reset.
The beneficial effects of the utility model are that valve is convenient for installation and maintenance, and are simple in structure, system safe.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 embodiment's sectional view.
Among the figure: 1. Pneumatic actuator; 2. support; 3. shaft coupling; 4. Gland; 5. filler assembly; 6. valve body; 7. pressing plate; 8. seal ring; 9. butterfly plate; 10. valve shaft; 11. pin; 12. end cap.
Embodiment
As shown in Figure 1, a kind of nuclear level Pneumatic butterfly valve comprises Pneumatic actuator 1, support 2, Gland 4, filler assembly 5, valve body 6, butterfly plate 9, seal ring 8, pressing plate 7.Pneumatic actuator 1 is connected by shaft coupling 3 with valve shaft 10, and valve shaft 10 compresses filler assembly 5 by Gland 4 and realizes sealing; Seal ring 8 is installed on the valve body 6 by pressing plate 7, when changing seal ring 8, only needs pressing plate 7 is pulled down, and is promptly replaceable, and will not disintegrate by valve, and valve body 6 passes through seal with O ring with end cap 12; Pneumatic actuator 1 is a spring reset formula single-acting Pneumatic actuator, when system's dead electricity, and can be by spring from horizontal reset.
Claims (2)
1, a kind of nuclear level Pneumatic butterfly valve comprises Pneumatic actuator, support, Gland, filler assembly, valve body, butterfly plate, seal ring, pressing plate, and it is characterized in that: described seal ring is installed on the described valve body by pressing plate.
2, nuclear level Pneumatic butterfly valve according to claim 1, it is characterized in that: described Pneumatic actuator is a spring reset formula single-acting Pneumatic actuator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520078190 CN2856618Y (en) | 2005-11-30 | 2005-11-30 | Kernel-glass pneumatic butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520078190 CN2856618Y (en) | 2005-11-30 | 2005-11-30 | Kernel-glass pneumatic butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2856618Y true CN2856618Y (en) | 2007-01-10 |
Family
ID=37599925
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520078190 Expired - Fee Related CN2856618Y (en) | 2005-11-30 | 2005-11-30 | Kernel-glass pneumatic butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2856618Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102182834A (en) * | 2011-05-05 | 2011-09-14 | 清华大学 | Ventilation control single-blade butterfly valve for high temperature reactor nuclear power plant |
-
2005
- 2005-11-30 CN CN 200520078190 patent/CN2856618Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102182834A (en) * | 2011-05-05 | 2011-09-14 | 清华大学 | Ventilation control single-blade butterfly valve for high temperature reactor nuclear power plant |
| CN102182834B (en) * | 2011-05-05 | 2012-11-14 | 清华大学 | Ventilation control single-blade butterfly valve for high temperature reactor nuclear power plant |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 226232 Nanyang Qidong Jiangsu Shentong Valve Co., Ltd., Jiangsu, China Patentee after: Jiangsu Shentong Valve Co., Ltd. Address before: 226232 Nanyang Qidong Jiangsu Shentong Valve Co., Ltd., Jiangsu, China Patentee before: Shentong Valve Co., Ltd., Jiangsu |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070110 Termination date: 20131130 |