CN203614763U - Large-conduction spherical electromagnetic differential pressure valve - Google Patents
Large-conduction spherical electromagnetic differential pressure valve Download PDFInfo
- Publication number
- CN203614763U CN203614763U CN201320807633.4U CN201320807633U CN203614763U CN 203614763 U CN203614763 U CN 203614763U CN 201320807633 U CN201320807633 U CN 201320807633U CN 203614763 U CN203614763 U CN 203614763U
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- Prior art keywords
- valve
- spherical
- seat
- conduction
- differential pressure
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- Expired - Fee Related
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Abstract
The utility model belongs to a large-conduction spherical electromagnetic differential pressure valve. The large-conduction spherical electromagnetic differential pressure valve comprises a two-position three-way electromagnetic valve (5) and a valve seat (6), and is characterized in that a spherical valve body (1) is fixed between the valve seat (6) and an upper valve seat (9), the spherical valve body (1) is connected with the two-position three-way electromagnetic valve (5), the two-position three-way electromagnetic valve (5) is connected with a valve plate seat (8) through a connecting pipe (7), and a valve plate (2) capable of sliding up and down is installed on the valve plate seat (8). The large-conduction spherical electromagnetic differential pressure valve is simple in structure. When a power failure occurs, the two-position three-way electromagnetic valve charges air into a valve body, the atmosphere pressure enables the valve plate to be upward instantly and close an entry of a system, the air enters a pump cavity, and oil inside the pump cavity is prevented from entering the system through a pipeline. When the power is on, vacuum is formed at the entry of a vacuum pump, and the valve body downwards slides under the action of self gravity to open the entry of the system. At the moment, the spherical space is large in conduction, and the air extraction characteristic of an oil sealed pump can be effectively improved.
Description
Technical field
The utility model belongs to control valve, particularly a kind of large admittance ball electromagnetic pressure difference valve using in vacuum pumping system.
Background technique
Large admittance electromagnetism pressure difference valve is that the protection vacuum system of installing between oil-sealed pump intakeport in vacuum pumping system and system pipeline is not by the pump oil control valve corroding that backflows.In the time having a power failure, by the automatic deflation throttle down of two-position three way magnetic valve, in vacuum pump, exit, avoid pump oil to return oil under atmospheric pressure simultaneously.Require venting fast, the cylinder shape valve admittance that tradition adopts is little, and height that need be longer when valve opening could meet the requirement of conductance.
Summary of the invention
The object of the invention is to overcome above-mentioned technical deficiency, provide a kind of simple in structure, the ball electromagnetic pressure difference valve that admittance is large.
The technological scheme that the utility model technical solution problem adopts is: a kind of large admittance ball electromagnetic pressure difference valve, comprise two-position three way magnetic valve and valve seat, it is characterized in that fixing a spherical valve body between valve seat and upper valve base, on spherical valve body, connect a two-position three way magnetic valve, between two-position three way magnetic valve and valve plate seat, be connected with connecting tube, on valve plate seat, the valve plate that can slide up and down be housed.
The beneficial effects of the utility model are: this model utility is simple in structure, and in the time having a power failure, two-position three way magnetic valve is inflated in valve body, and atmospheric pressure makes upwards shutdown system entrance of valve plate moment, and atmosphere enters pump chamber, has prevented that the oil in pump chamber from entering system along pipeline; When energising work, vacuum pump import forms vacuum, and valve body is at down sliding open system entrance under gravity.Now spheroid space admittance is large, can effectively improve oil-sealed pump Pumping characterization.
Accompanying drawing explanation
Illustrate with embodiment below in conjunction with accompanying drawing.
Fig. 1 is the plan view of large admittance ball electromagnetic pressure difference valve.
In figure: 1-spherical valve body; 2-valve plate; 3-flange; 4-rubber seal; 5-two-position three way magnetic valve; 6-valve seat; 7-connecting tube; 8-valve plate seat; 9-upper valve base.
Embodiment
Embodiment, with reference to accompanying drawing, a kind of large admittance ball electromagnetic pressure difference valve, comprise two-position three way magnetic valve 5 and valve seat 6, it is characterized in that fixing a spherical valve body 1 between valve seat 6 and upper valve base 9, on spherical valve body 1, connect a two-position three way magnetic valve 5, between two-position three way magnetic valve 5 and valve plate seat 8, be connected with connecting tube 7, the valve plate 2 that can slide up and down is housed on valve plate seat 8.Flange 3 is equipped with in valve seat 6 upper ends, between flange 3 and valve seat 6, rubber seal 4 is housed; Valve plate 2 is also equipped with rubber seal 4 above, in the time closing, between upper valve base 9 and the valve plate 2 of slip, seals.The utility model is (when vacuum pump work) in the time of the opening of valve, and larger admittance space is provided in very little working stroke.
Claims (1)
1. a large admittance ball electromagnetic pressure difference valve, comprise two-position three way magnetic valve (5) and valve seat (6), it is characterized in that fixing a spherical valve body (1) between valve seat (6) and upper valve base (9), at the upper two-position three way magnetic valve (5) that connects of spherical valve body (1), between two-position three way magnetic valve (5) and valve plate seat (8), be connected with connecting tube (7), the valve plate that can slide up and down (2) is housed on valve plate seat (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320807633.4U CN203614763U (en) | 2013-12-11 | 2013-12-11 | Large-conduction spherical electromagnetic differential pressure valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320807633.4U CN203614763U (en) | 2013-12-11 | 2013-12-11 | Large-conduction spherical electromagnetic differential pressure valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203614763U true CN203614763U (en) | 2014-05-28 |
Family
ID=50767412
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320807633.4U Expired - Fee Related CN203614763U (en) | 2013-12-11 | 2013-12-11 | Large-conduction spherical electromagnetic differential pressure valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203614763U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106870774A (en) * | 2017-03-27 | 2017-06-20 | 牡丹江等离子体物理应用科技有限公司 | Hydrogen peroxide low-temperature plasma sterilizer mechanical shutter valve |
-
2013
- 2013-12-11 CN CN201320807633.4U patent/CN203614763U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106870774A (en) * | 2017-03-27 | 2017-06-20 | 牡丹江等离子体物理应用科技有限公司 | Hydrogen peroxide low-temperature plasma sterilizer mechanical shutter valve |
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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: DALIAN VACUUM TECHNOLOGIES INC. Free format text: FORMER OWNER: CHEN DAMIN Effective date: 20141119 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20141119 Address after: 116600 Tieshan West Road, Dalian economic and Technological Development Zone, 3-1, No. Patentee after: DALIAN VACUUM TECHNOLOGIES INC. Address before: 116600 Liaoning province Dalian city Jinzhou District bamboo building 41 South Lane 3-4-1 Patentee before: Chen Damin |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140528 Termination date: 20191211 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |