CN201827457U - Ceramic sealed swing check valve - Google Patents
Ceramic sealed swing check valve Download PDFInfo
- Publication number
- CN201827457U CN201827457U CN2009201795496U CN200920179549U CN201827457U CN 201827457 U CN201827457 U CN 201827457U CN 2009201795496 U CN2009201795496 U CN 2009201795496U CN 200920179549 U CN200920179549 U CN 200920179549U CN 201827457 U CN201827457 U CN 201827457U
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- CN
- China
- Prior art keywords
- valve
- ceramic
- swing check
- check valve
- flap
- 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
A ceramic sealed swing check valve comprises a valve body, a valve seat, a valve flap, a rocking bar, a body head, a pin shaft, a valve cover, etc., and is characterized in that a valve sealing element is made of ceramic materials and an inner cavity of the valve body is coated with a ceramic coating layer. The ceramic sealed swing check valve, which achieves application performance improvement, good sealing performance, good wear-resistant performance, leakage rate reduction, service lifetime prolongation, saves investments in terms of time and manpower during the maintenance, reliably guarantees the safe operation of an ash removing system, and is quite suitable for pipelines of ash (mortar and residual slurry) removing water systems in thermal power plants to prevent media from counterflowing.
Description
Technical field:
The utility model relates to a kind of rotary-open type wear-resisting (pottery) safety check, is specially adapted to stop medium counter flow on thermal power plant water ash disposal (mortar, the slag slurry) system pipeline.
Background technique:
Valve is a kind of piping element of controlling fluid motion.Swing check valve is a kind of of valve, and Swing check valve commonly used mostly is the metallic safety check, not erosion resistance and wearing and tearing, and working life is short.
Summary of the invention:
The utility model aims to provide a kind of wear-resistant ceramic safety check that is specially adapted on thermal power plant water ash disposal (mortar, the slag slurry) system pipeline, adopt the high stupalith of wear-resisting property by sealing pair at Swing check valve, improve usability, sealability and wear-resisting property, reduce leakage rate, improve working life at work; Save the input of engineering time and manpower, for the ash disposal system safe operation provides reliable assurance.
The utility model ceramic seal Swing check valve comprises valve body, valve seat, flap, rocking bar, body head, bearing pin, valve gap etc.; Be provided with import and outlet on valve body, the valve seal element is a stupalith, and body cavity spraying ceramic coat or spraying ceramic coat not are as Fig. 1, shown in 2.
The stupalith of the utility model safety check can be a zirconia-based ceramics, alumina-based ceramic, silica-based pottery, mullite-based ceramic, silicon-nitride-based ceramic.
The working principle of the utility model safety check is seen embodiment.
Description of drawings:
Fig. 1 is a closed condition overall structure schematic representation for the utility model ceramic seal Swing check valve;
Fig. 2 is an opening state overall structure schematic representation for the utility model ceramic seal Swing check valve; Among the figure:
The 1-valve body; The 2-valve seat insert; 3-flap seal ring; The 4-flap; The 5-body cavity;
Embodiment:
With inside nominal diameter DN200, the present invention of nominal pressure PN1.6MPa is embodiment.
The pipe-line system that the present invention is used for the Water of Power Plant ash disposal.Import and export flange A, the B of valve body 1 (referring to Fig. 1) are installed in respectively in the conveyance conduit of fluid.The flap seal ring 3 of flap 4 adopts structural ceramics, and valve seat insert 2 also is a structural ceramics, and body cavity 5 is spraying ceramic coat not.
As shown in Figure 1, direction shown in the valve upward arrow be MEDIA FLOW to.When medium flowed in a direction indicated by the arrow, flap under the drive of rocking bar, rotarily opened around bearing pin under the effect of medium; When medium counter flow, under the acting in conjunction of flap deadweight and medium reaction force, cause the applying of flap and sealing surface of seat and close, reach the requirement of seal for pipe joints.
Under the present invention in off position, medium enters from import A, and flap 4 rotarily opens under the effect of medium, the medium circulation; After inlet pressure disappears, during medium counter flow, under the acting in conjunction of flap 4 deadweights and medium reaction force, cause flap seal ring 3 and valve seat insert 2 applyings and close the realization sealing, thereby reach the purpose that stops medium counter flow.
Because valve seal of the present invention adopted the ceramic seal form, make the present invention have to resistance to wear, corrosion-resistant, characteristics such as sealing is tight that be greatly improved working life.
Claims (2)
1. a ceramic seal Swing check valve comprises valve body, valve seat, flap, rocking bar, body head, bearing pin, valve gap etc.; It is characterized in that the valve seal element is a stupalith, the body cavity spraying ceramic coat.
2. according to the described ceramic seal Swing check valve of claim 1, it is characterized in that pottery is zirconia-based ceramics or alumina-based ceramic or types of silicon carbide-based ceramics or mullite-based ceramic or silicon-nitride-based ceramic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201795496U CN201827457U (en) | 2009-10-12 | 2009-10-12 | Ceramic sealed swing check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201795496U CN201827457U (en) | 2009-10-12 | 2009-10-12 | Ceramic sealed swing check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201827457U true CN201827457U (en) | 2011-05-11 |
Family
ID=43965992
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201795496U Expired - Fee Related CN201827457U (en) | 2009-10-12 | 2009-10-12 | Ceramic sealed swing check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201827457U (en) |
-
2009
- 2009-10-12 CN CN2009201795496U patent/CN201827457U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| DD01 | Delivery of document by public notice |
Addressee: Zhang Junhua Document name: Notification to Go Through Formalities of Registration |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160624 Address after: 300308 No. 106 South Central Road, Tianjin Airport Economic Zone Patentee after: Shengkai (Tianjin) Industrial Co. Ltd. Address before: 300308 No. 106 South Central Road, Tianjin Airport Economic Zone Patentee before: Tianjin Shengkai Industrial Techn Development Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110511 Termination date: 20181012 |