CN201902611U - Three-way electromagnetic valve with diaphragm structure - Google Patents
Three-way electromagnetic valve with diaphragm structure Download PDFInfo
- Publication number
- CN201902611U CN201902611U CN2010206847589U CN201020684758U CN201902611U CN 201902611 U CN201902611 U CN 201902611U CN 2010206847589 U CN2010206847589 U CN 2010206847589U CN 201020684758 U CN201020684758 U CN 201020684758U CN 201902611 U CN201902611 U CN 201902611U
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- Prior art keywords
- valve body
- isolation diaphragm
- valve
- drive part
- seal ring
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- Expired - Fee Related
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Abstract
The utility model discloses a three-way electromagnetic valve with a diaphragm structure. The three-way electromagnetic valve comprises a valve body, an electromagnetic driving part, an electromagnetic coil, a first isolation diaphragm and a second isolation diaphragm, wherein the electromagnetic driving part is mounted on the valve body, the electromagnetic coil is mounted on the electromagnetic driving part, the first isolation diaphragm is arranged between the valve body and the electromagnetic driving part, and the second isolation diaphragm is arranged between the bottom of the valve body and a fixing part. A first seal ring is arranged between the electromagnetic driving part and the valve body, and a second seal ring is arranged between the valve body and the fixing part, so that when high-temperature liquid flows through the three-way electromagnetic valve with the isolation diaphragm structure, leakage caused by thermal expansion is effectively avoided.
Description
Technical field
The utility model relates to membrane configuration three-way magnetic valve technical field, relates in particular to the sealing configuration of membrane configuration three-way magnetic valve.
Background technique
Solenoid valve is to utilize the hot-wire coil excitation to produce electromagnetic force, drives the isolation diaphragm motion, to open or throttle down, changes the flow direction of fluid, thereby reaches the purpose that executive component changes the fluid motion direction.Its kind is a lot, has many uses, and is most important a kind of in the control valve.Wherein isolating film chip two logical reversing solenoid valves are used extremely wide in medical treatment and environmental analysis Detection range and life science.It comprises the cylinder shell formula coil drive portion of the valve body, valve seat and the interior dress hot-wire coil that are provided with fluid input and outlet, and circular isolation diaphragm and the link made by rubber material.
The corrosion protection solenoid valve extensively has been to be applied in any field of analytic instrument of using corrosive fluid at present, and the liquid portion that the connects material of corrosion protection solenoid valve adopts resin materials such as PTFE, PFA.
As shown in Figure 1, it is the solenoid valve 200 of the isolation diaphragm structure used in a kind of prior art, this solenoid valve 200 is provided with first isolation diaphragm, 230, the first isolation diaphragms 230 between valve body 210 and electromagnetic drive part 220 keeps apart the various resin component of various metallic elements on the electromagnetic drive part 220 and contact liq.Be provided with second isolation diaphragm 250 between the bottom of described valve body 210 and the fixed block 240, fixing between electromagnetic drive part 21 and valve body 210, the fixed block 240 by the screw assembling, the knee-action of first and second diaphragm 230,250 is realized opening and closing of stream.
When the temperature of fluid than higher the time, as the on-line analysis industry, fluid is the fluid of severe corrosive, temperature is up to nearly 200 degree.In this case, the heat of high temperature can make the valve body 210 of resin material that thermal expansion takes place.Temperature subsequently descends or after fluid had flowed, the resin valve body 210 of thermal expansion began to shrink, the screw when causing assembling is loosening, and then causes leaking around first or second isolation diaphragm 230,250.
Therefore, a kind of solenoid valve of isolation diaphragm structure need be provided at present, the situation that leakage takes place above-mentioned isolation diaphragm easily can be overcome on every side.
The model utility content
The purpose of this utility model is to provide a kind of three-way magnetic valve of isolation diaphragm structure, and the three-way magnetic valve of this isolation diaphragm structure can improve the sealability under the high-temp liquid environment.
For realizing above model utility purpose, the utility model adopts following technological scheme: a kind of membrane configuration three-way magnetic valve, comprise valve body, be installed in electromagnetic drive part on the valve body, be installed in electromagnetic coil on the electromagnetic drive part, be arranged on first isolation diaphragm between valve body and the electromagnetic drive part and be arranged on the bottom of valve body and second isolation diaphragm between the fixed block, it is characterized in that: be provided with first seal ring between described electromagnetic drive part and the valve body, be provided with second seal ring between described valve body and the fixed block.
As further improvement of the utility model, described first seal ring is arranged between the electromagnetic drive part and first isolation diaphragm.
As further improvement of the utility model, described second seal ring is arranged between the fixed block and second isolation diaphragm.
As further improvement of the utility model, described first and second seal ring is an O type circle.
As further improvement of the utility model, the part that described electromagnetic drive part contacts with liquid is an anticorrosive.
As further improvement of the utility model, described anticorrosive is the anti-corrosion resin material.
As further improvement of the utility model, fixing between described electromagnetic drive part and valve body, the fixed block by the screw assembling.
Compared to prior art, the utility model membrane configuration three-way magnetic valve is provided with first seal ring between electromagnetic drive part and valve body, between valve body and fixed block, be provided with second seal ring, therefore after high-temp liquid flows through the three-way magnetic valve of the utility model isolation diaphragm structure, avoided effectively causing the problem of leaking because of thermal expansion.
Description of drawings
Fig. 1 is the partial schematic sectional view of the solenoid valve of prior art isolation diaphragm structure.
Fig. 2 is the partial sectional view of the three-way magnetic valve of the utility model isolation diaphragm structure.
Embodiment
As shown in Figure 2, the utility model membrane configuration three-way magnetic valve 100, comprise valve body 10, be installed in electromagnetic drive part 21 on the valve body 10, be installed in electromagnetic coil 22 on the electromagnetic drive part 21, be arranged on first isolation diaphragm 31 between valve body 10 and the electromagnetic drive part 21 and be arranged on the bottom of valve body 10 and second isolation diaphragm 32 between the fixed block 50, be provided with first seal ring 41 between described electromagnetic drive part 21 and the valve body 10, be provided with second seal ring 42 between described valve body 10 and the fixed block 50.
In the utility model, fixing between described electromagnetic drive part 21 and valve body 10, the fixed block 50 by the screw assembling.Further, described first seal ring 41 is arranged between the electromagnetic drive part 21 and first isolation diaphragm 31.Described second seal ring 42 is arranged between the fixed block 50 and second isolation diaphragm 32.Described first and second seal ring 41,42 is an O type circle.The part that described electromagnetic drive part 21 contacts with liquid is an anticorrosive.Described anticorrosive is the anti-corrosion resin material.
When the liquid that flows through membrane configuration three-way magnetic valve 100 of the present utility model was high-temp liquid, this moment, the heat of high temperature made the anti-corrosion resin material generation thermal expansion of valve body 10.Subsequently temperature descends or after high-temp liquid has flowed, the anti-corrosion resin material of thermal expansion begins to shrink, the screw when causing assembling loosening, and the utility model increases, O type circle will compensate loosening that aforementioned screw produces, thereby makes membrane configuration three-way magnetic valve 100 of the present utility model avoid effectively causing the problem of leaking because of thermal expansion.
Therefore, the utility model membrane configuration three-way magnetic valve is provided with first and second seal ring 41 by increase, 42, thus make after high-temp liquid flows through the three-way magnetic valve 100 of the utility model isolation diaphragm structure, avoided effectively causing the problem of leaking because of thermal expansion.
In sum, it below only is preferred embodiment of the present utility model, should not limit scope of the present utility model with this, be that every simple equivalent of being done according to the utility model claims and model utility description changes and modifies, all should still belong in the scope that the utility model patent contains.
Claims (7)
1. a membrane configuration three-way magnetic valve (100), comprise valve body (10), be installed in valve body (10) and go up electromagnetic drive part (21), be installed in the electromagnetic coil (22) on the electromagnetic drive part (21), be arranged on first isolation diaphragm (31) between valve body (10) and the electromagnetic drive part (21) and be arranged on the bottom of valve body (10) and second isolation diaphragm (32) between the fixed block (50), it is characterized in that: be provided with first seal ring (41) between described electromagnetic drive part (21) and the valve body (10), be provided with second seal ring (42) between described valve body (10) and the fixed block (50).
2. membrane configuration three-way magnetic valve as claimed in claim 1 (100) is characterized in that: described first seal ring (41) is arranged between electromagnetic drive part (21) and first isolation diaphragm (31).
3. membrane configuration three-way magnetic valve as claimed in claim 1 (100) is characterized in that: described second seal ring (42) is arranged between fixed block (50) and second isolation diaphragm (32).
4. membrane configuration three-way magnetic valve as claimed in claim 1 (100) is characterized in that: described first and second seal ring (41,42) is an O type circle.
5. membrane configuration three-way magnetic valve as claimed in claim 1 (100) is characterized in that: the part that described valve body (10) contacts with liquid is an anticorrosive.
6. membrane configuration three-way magnetic valve as claimed in claim 5 (100) is characterized in that: described anticorrosive is the anti-corrosion resin material.
7. membrane configuration three-way magnetic valve as claimed in claim 1 (100) is characterized in that: fixing by the screw assembling between described electromagnetic drive part (21) and valve body (10), the fixed block (50).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206847589U CN201902611U (en) | 2010-12-28 | 2010-12-28 | Three-way electromagnetic valve with diaphragm structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206847589U CN201902611U (en) | 2010-12-28 | 2010-12-28 | Three-way electromagnetic valve with diaphragm structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201902611U true CN201902611U (en) | 2011-07-20 |
Family
ID=44273205
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206847589U Expired - Fee Related CN201902611U (en) | 2010-12-28 | 2010-12-28 | Three-way electromagnetic valve with diaphragm structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201902611U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102563118A (en) * | 2010-12-28 | 2012-07-11 | 高砂电气(苏州)有限公司 | Three-way electromagnetic valve with diaphragm structure |
-
2010
- 2010-12-28 CN CN2010206847589U patent/CN201902611U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102563118A (en) * | 2010-12-28 | 2012-07-11 | 高砂电气(苏州)有限公司 | Three-way electromagnetic valve with diaphragm structure |
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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: 20110720 Termination date: 20131228 |