CN2529053Y - Automatic inflation water-proof sealing device for electrically operated valve actuator - Google Patents
Automatic inflation water-proof sealing device for electrically operated valve actuator Download PDFInfo
- Publication number
- CN2529053Y CN2529053Y CN 01270698 CN01270698U CN2529053Y CN 2529053 Y CN2529053 Y CN 2529053Y CN 01270698 CN01270698 CN 01270698 CN 01270698 U CN01270698 U CN 01270698U CN 2529053 Y CN2529053 Y CN 2529053Y
- Authority
- CN
- China
- Prior art keywords
- valve actuator
- actuator
- inflating
- sealing device
- inner casing
- 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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- Electrically Driven Valve-Operating Means (AREA)
Abstract
The utility model provides an automatic inflation water-proof sealing device for electrically operated valve actuator, which comprises a valve actuator, and is characterized in that the utility model is further provided with an outer casing, an inner casing and a fiber and water-absorption deflation object. The outer casing is protruded and extendedly arranged inside a hollow cavity of the valve actuator. A linkage point between an opened bottom end of the hollow cavity of the outer casing and the hollow cavity of the valve actuator is provided with the inner casing with a through hole. The fiber and water-absorption deflation objects are continuously filled in a cavity body formed by the outer casing and the inner casing from down to up, which ensures that internal of an automatic inflation water-proof sealing device is communicated with internal of an actuator, and the moisture inside the actuator is absorbed and dry air inside a sealing device is discharged. The utility model guarantees internal drying of the actuator and further maintains a certain internal pressure, and the actuator can be underwater used.
Description
Technical field
The utility model belongs to the seal arrangement on the valve electric actuator, and the electric valve actuator that particularly a kind of sealing of electric valve is under water used is with inflating waterproof seal certainly.
Background technique
The electric actuator sealing of now using has dual mode usually: 1, seal with elastometic washer; This kind sealing only can be accomplished relative sealing, thereby uses under long-term moist environment and then can bring certain danger.2, electric heating drives damp formula sealing; Add one " electric heating wire " in electric actuator inside, the aperture of and exterior is arranged on the final controlling element,, open electric heating and discharge moisture from tapping when moist when inner, its defective is: power consumption is big, can not use the strict place of power consumption.Certainly because there is a vent just more can not use under water.Therefore, the sealing of existing electric valve actuator seldom can be used under water because structure is limit, and especially when long-term moist environment used, electric actuator inside was easy to make moist, intake, and causes the control circuit action undesired.
Summary of the invention
The purpose of this utility model provides a kind of electric valve actuator with inflating waterproof seal certainly, guaranteed that not only final controlling element is inner dry, and guaranteed the pressure that final controlling element is inner certain, initiatively prevent the further intrusion of sealing, thoroughly solve electric valve at integrity problem very moist and that use under water.
The related electric valve actuator of the utility model is inflated waterproof seal with oneself, and valve actuator is arranged, and it is characterized in that: it also is provided with shell, inner casing, fiber and suction venting object; Its shell protrudes out and is arranged in the valve actuator cavity, has the inner casing of through hole at cavity pocket of outer cover open bottom and valve actuator cavity joining place device, fiberfill fibers and suction venting object in succession from bottom to top in the formed cavity of inner casing and shell; Make from inflating the inner inner aqueous vapor of absorption final controlling element that communicates with final controlling element inside of waterproof seal and emit dry gas in the seal arrangement.
Above-mentioned suction venting object can be calcium carbide, potassium peroxide, sodium peroxide.
Above-mentioned suction venting object the best is a calcium carbide.
Above-mentioned shell is that transparent material is made.
The beneficial effects of the utility model are: when moist aqueous vapor enters electric valve actuator inside, this device absorbs aqueous vapor and discharges dryness gas, thereby guaranteed the inner certain interior pressure of final controlling element, make water or aqueous vapor can not continue to enter final controlling element inside, thoroughly solve electric valve at integrity problem very moist and that use under water.
Description of drawings
Fig. 1 structural representation of the present utility model.
Among the figure: 1 shell, 2 inner casings, 3 fibers, 4 suction venting objects, 5 valve actuators.
Embodiment
The utility model is installed on the valve actuator 5, and makes that waterproof seal is inner to communicate with final controlling element inside from inflating.Its shell 1 protrudes out and is arranged in valve actuator 5 cavitys, has the inner casing 2 of through hole at cavity pocket of outer cover open bottom and valve actuator cavity joining place device, fiberfill fibers 3 and suction venting object 4 in succession from bottom to top in inner casing 2 and the shell 1 formed cavity; Make from inflating the inner aqueous vapor of waterproof seal absorption final controlling element and emit dry gas in the seal arrangement.
Its working principle is: when there is moist aqueous vapor final controlling element inside, be diffused on the suction venting object 4 after passing fiber 3, object 4 absorbs aqueous vapor and emits dry gas, has guaranteed that not only final controlling element is inner dry, and guaranteed the inner certain pressure of final controlling element, initiatively prevent the further intrusion of sealing.
Suction venting object should possess following characteristic:
Aqueous vapor+object=dry gas+reaction back solid product
The effect of fiber is that solid product is fallen into final controlling element inside after preventing suction venting object or reaction, so only allow aqueous vapor, dry gas to pass through.
Shell is a transparent material, so that observe the user mode of suction venting material.
Above-mentioned suction venting object can be calcium carbide, potassium peroxide, sodium peroxide.
Claims (4)
1, a kind of electric valve actuator has valve actuator with from inflating waterproof seal, it is characterized in that: it also is provided with shell, inner casing, fiber and suction venting object; Its shell protrudes out and is arranged in the valve actuator cavity, has the inner casing of through hole at cavity pocket of outer cover open bottom and valve actuator cavity joining place device, fiberfill fibers and suction venting object in succession from bottom to top in the formed cavity of inner casing and shell; Make from inflating the inner inner aqueous vapor of absorption final controlling element that communicates with final controlling element inside of waterproof seal and emit dry gas in the seal arrangement.
2, electric valve actuator according to claim 1 is with inflating waterproof seal certainly, and it is characterized in that: shell is that transparent material is made.
3, above-mentioned electric valve actuator according to claim 1 is characterized in that with inflating waterproof seal certainly: suction venting object can be calcium carbide, potassium peroxide, sodium peroxide.
4, above-mentioned electric valve actuator according to claim 2 is characterized in that with inflating waterproof seal certainly: above-mentioned suction venting object the best is a calcium carbide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01270698 CN2529053Y (en) | 2001-11-16 | 2001-11-16 | Automatic inflation water-proof sealing device for electrically operated valve actuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01270698 CN2529053Y (en) | 2001-11-16 | 2001-11-16 | Automatic inflation water-proof sealing device for electrically operated valve actuator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2529053Y true CN2529053Y (en) | 2003-01-01 |
Family
ID=33676263
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01270698 Expired - Fee Related CN2529053Y (en) | 2001-11-16 | 2001-11-16 | Automatic inflation water-proof sealing device for electrically operated valve actuator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2529053Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104676559A (en) * | 2013-11-27 | 2015-06-03 | 海洋王（东莞）照明科技有限公司 | Water-proof seal structure and lamp with same |
| CN110356524A (en) * | 2018-04-10 | 2019-10-22 | 优机国际有限公司 | Propulsion die and surfing equipment comprising it |
-
2001
- 2001-11-16 CN CN 01270698 patent/CN2529053Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104676559A (en) * | 2013-11-27 | 2015-06-03 | 海洋王（东莞）照明科技有限公司 | Water-proof seal structure and lamp with same |
| CN110356524A (en) * | 2018-04-10 | 2019-10-22 | 优机国际有限公司 | Propulsion die and surfing equipment comprising it |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |