CN2622504Y - One-way valve for vacuum system - Google Patents
One-way valve for vacuum system Download PDFInfo
- Publication number
- CN2622504Y CN2622504Y CN 03217745 CN03217745U CN2622504Y CN 2622504 Y CN2622504 Y CN 2622504Y CN 03217745 CN03217745 CN 03217745 CN 03217745 U CN03217745 U CN 03217745U CN 2622504 Y CN2622504 Y CN 2622504Y
- Authority
- CN
- China
- Prior art keywords
- valve
- spool
- vacuum system
- disposed
- way valve
- 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 vacuum system check valve comprises a combined valve bonnet, a valve base and a valve spool disposed in the valve cavity. The check valve is characterized in that one end of the nipple bonnet is connected with a pipe line while the other end is connected with the valve base by a fastener to form a check valve as a whole; brackets are independently disposed in the valve bonnet cavity and the valve cavity, both brackets are disposed with concentric sliding parts in the central part; a valve rod is penetrated through the closed hole of the sliding parts and fastens the valve spool, both the valve rod and spool are connected together; the valve base is disposed with an exhaust port; a seal ring is disposed on the joint part of the valve bonnet and base and another seal ring is disposed on the joint part of upside-down edges. The utility model has no movable axis pin, therefore, the valve spool will not fall off, in addition, the valve rod is designed with the function of guidance and the valve spool will not be blocked to return; besides, the pipe lines can be mounted horizontally, vertically or laterally. The utility model can be used in industries such as petroleum, chemical industry, light industry, ferment, food, irrigation works, coal, etc.
Description
Technical field
The utility model belongs to the one-way valve field, is specifically related to a kind of vacuum system one-way valve.
Background technique
Traditional one-way valve, more common have slat belt or a hinge-type.Connecting by active pin shaft of its spool and valve seat, the active pin shaft easy-to-rust often causes that active pin shaft comes off, spool comes off, or the influence of spool bite resets; And its mounting point in pipeline is limited, only can laterally install, can not be vertically or side direction install.
The model utility content
The purpose of this utility model is the no active pin shaft of design, can be laterally, vertically or a kind of vacuum system one-way valve of side direction installation.
Its technological scheme is: design a kind of vacuum system one-way valve, comprise valve gap, the valve seat of combination and be arranged on spool in the valve pocket, it is characterized in that:
Valve gap one end of pipe nipple formula docks with pipeline, and the other end connects formation one-way valve integral body by fastening piece and valve seat;
Support is set in the valve cover cavity, support also is set in the valve pocket, two supports are provided with sliding sealing part between two parties with one heart;
Valve rod runs through the closed hole of sliding sealing part, by the fixed block fixed spool, and valve rod, both affixed being integral of spool;
Valve seat is provided with exhaust port;
Valve gap and valve seat are provided with seal ring in the end-to-end joint part, and spool is being provided with seal ring with valve gap flange sticking part.
Above-mentioned vacuum system one-way valve is characterized in that described valve seat is provided with one or more relief openings; Above-mentioned vacuum system one-way valve is characterized in that described valve seat is provided with motor-driven capping; Above-mentioned vacuum system one-way valve is characterized in that described valve core diameter greater than the valve gap through-hole diameter, and its sectional shape can be sphere, arc or rectangle.
Compared with prior art, the utility model has the advantages that no active pin shaft, spool can not come off, and valve rod tool guide function, spool can not reset in the bite influence; Can be vertically in pipeline, laterally or side direction install.
Description of drawings
Fig. 1 is an an embodiment's of the present utility model structural representation.
Embodiment
Among the figure, pipe nipple formula valve gap 1, one end docks with pipeline, this end double as suction port 16, and the other end connects by fastening piece 2 and valve seat 3, constitutes the utility model integral body.Valve gap is provided with support 4 in 1 chamber, and support 6 equally also is set in the valve pocket 5, support 4 and support 6 both concentric between two parties respectively slide member 7 and 8 of being provided with.Valve rod 9 with guide function runs through the closed hole of slide member 7,8, by fixed block 10 fixed spools 11; Both are affixed is integral with valve rod 9 and spool 11.
Valve gap 1 is provided with seal ring 14 with valve seat 3 in the end-to-end joint part; Same spool 11 also is being provided with seal ring 15 with valve gap 1 flange sticking part.
According to on-the-spot needs, selected suitable relief opening is blocked with motor-driven capping 17 another standby mouthful during installation.
Under the normal condition, from the air-flow that system comes spool is pushed open to maximum folding degree (the solid line valve element position that shows among the figure) from closed state (the 18 dotted line valve element positions that show the figure), form path between the relief opening of suction port 16 and setting in advance, gas is realized resistanceless motion.
Suddenly have a power failure or vacuum system when breaking down, spool by moment back draught promote, shift to suction port, return closed state (the 18 dotted line valve element positions that show among the figure),, at the seal ring 15 that is provided with valve gap 1 flange sticking part air-flow is blocked by spool 11.Thereby realize sealing, prevent that system pressure from further rising, win the effective emergency processing time system; This measure simultaneously can effectively prevent accidents such as pollution that working liquid body (water, oil, the organic substance etc.) recoil of vacuum system enters system and cause, blast.
Can select materials such as carbon steel, stainless steel, engineering plastics for use according to the different needs of working medium.
The diameter of spool can be designed to φ 60～600mm, uses in 1Pa～10
5In the vacuum system of Pa, effect is all good.
The utility model can be widely used in industries such as oil, chemical industry, light industry, fermentation, food, water conservancy, coal.
Claims (5)
1. vacuum system one-way valve comprises valve gap, the valve seat of combination and is arranged on spool in the valve pocket, it is characterized in that:
Valve gap one end of pipe nipple formula docks with pipeline, and the other end connects formation one-way valve integral body by fastening piece and valve seat;
Support is set in the valve cover cavity, support also is set in the valve pocket, two supports are provided with sliding sealing part between two parties with one heart;
Valve rod runs through the closed hole of sliding sealing part, by the fixed block fixed spool, and valve rod, both affixed being integral of spool;
Valve seat is provided with exhaust port;
Valve gap and valve seat are provided with seal ring in the end-to-end joint part, and spool is being provided with seal ring with valve gap flange sticking part.
2. according to the described vacuum system one-way valve of claim 1, it is characterized in that described valve seat is provided with a relief opening.
3. according to the described vacuum system one-way valve of claim 1, it is characterized in that described valve seat is provided with an above relief opening.
4. according to the described vacuum system one-way valve of claim 1, it is characterized in that described valve seat is provided with motor-driven capping.
5. according to the described vacuum system one-way valve of claim 1, it is characterized in that described valve core diameter greater than the valve gap through-hole diameter, its sectional shape is sphere, arc or rectangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03217745 CN2622504Y (en) | 2003-05-28 | 2003-05-28 | One-way valve for vacuum system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03217745 CN2622504Y (en) | 2003-05-28 | 2003-05-28 | One-way valve for vacuum system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2622504Y true CN2622504Y (en) | 2004-06-30 |
Family
ID=34243668
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03217745 Expired - Fee Related CN2622504Y (en) | 2003-05-28 | 2003-05-28 | One-way valve for vacuum system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2622504Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103629397A (en) * | 2013-11-05 | 2014-03-12 | 马兆良 | Automatic pressure leakage block valve |
| CN111550584A (en) * | 2020-05-19 | 2020-08-18 | 淄博真空设备厂有限公司 | Check valve for inlet pipeline of liquid ring vacuum system |
-
2003
- 2003-05-28 CN CN 03217745 patent/CN2622504Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103629397A (en) * | 2013-11-05 | 2014-03-12 | 马兆良 | Automatic pressure leakage block valve |
| CN111550584A (en) * | 2020-05-19 | 2020-08-18 | 淄博真空设备厂有限公司 | Check valve for inlet pipeline of liquid ring vacuum system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20040630 Termination date: 20120528 |