CN2725676Y - Filler less regulating valve valve rod seal - Google Patents
Filler less regulating valve valve rod seal Download PDFInfo
- Publication number
- CN2725676Y CN2725676Y CN 200420078766 CN200420078766U CN2725676Y CN 2725676 Y CN2725676 Y CN 2725676Y CN 200420078766 CN200420078766 CN 200420078766 CN 200420078766 U CN200420078766 U CN 200420078766U CN 2725676 Y CN2725676 Y CN 2725676Y
- Authority
- CN
- China
- Prior art keywords
- core bar
- barrier film
- medium
- seal
- sealing
- 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
The utility model discloses a filler less regulating valve rod seal, comprising a core bar (1), a lower cover (2), an upper cap (8) and an upper seal (9). The core bar (1) is composed of upper and lower portions, the upper portion passed through the an upper diaphragm (11), and the centre hole of a lower diaphragm (13) is connected with the lower portion into integration. A pressure chamber (10) is filled with liquid pressure transmitter substance, an upper seal (9) on the core bar adopts O-typed and Y-typed seal rings adjusting the distance to the flowing-through transmitter substance. Overcoming the defect of filling material seal, the utility model has the advantages of good seal performance, simple structure and reliable performance.
Description
Technical field
The utility model belongs to the regulating valve rod sealing configuration.
Background technique
The sealing of tradition regulating valve rod, adopt the sealing of V-arrangement fluorine filler or packing filling, though high temperature resistant, corrosion resistance is strong, because it is sealed into motive sealing, valve rod toward being subjected to motion to cause easily that valve rod produce to scratch, wearing and tearing, filler can produce aging following the string and wait and produce leakage.For the leakage of strong corrosive media, the lighter's damage equipment, weight causes human casualty accident.
Summary of the invention
The purpose of this utility model is the shortcoming that overcomes prior art, changes the regulating valve rod sealing configuration, and medium in the valve pocket is carried out static seal, thereby improves the reliability of sealing.
The utility model is achieved by the following technical solution: a kind of no filler regulating valve rod sealing, comprise that core bar, lower cover, loam cake, device are stoping liquid pressure medium to seal on external leakage by core bar on the core bar, it is characterized in that core bar is divided into two-part up and down, the center hole that barrier film, lower diaphragm plate are passed in top connects as one by screw thread and bottom, forms the interior medium of blocking-up valve pocket simultaneously by the sealing of core bar to external leakage; Lower cover, loam cake and skeleton connect by screw, will go up barrier film, lower diaphragm plate and skeleton and clamp, and form medium in the blocking-up valve pocket by the sealing to external leakage of last barrier film, lower diaphragm plate cylindrical portion; Form the pressure chamber of contain fluid pressure medium simultaneously, in pressure chamber, be filled with the liquid pressure medium of pressure medium in the balance valve pocket; On be sealed into y-shaped ring or O RunddichtringO., barrier film is vertical section on it
The disk of shape, lower diaphragm plate are vertical section
The disk of shape, the heart respectively has the center hole that can penetrate core bar therein.
The beneficial effects of the utility model are: owing to adopted said structure, changing traditional filler motive sealing is static seal, good seal performance, the big reliability that has improved sealing; The structure of upper and lower barrier film has been utilized the incompressibility of liquid, makes the barrier film working pressure bring up to 10Mpa.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 goes up the barrier film sectional drawing;
Fig. 3 is the lower diaphragm plate sectional drawing;
Among the figure: 1, core bar, 2, lower cover, 3, pad, 4, screw, 5, dust cap, 6, peep hole down, 7, go up peep hole, 8, loam cake, 9, go up sealing, 10, pressure chamber, 11, go up barrier film, 12, skeleton, 13, lower diaphragm plate, 14, screw, 15, center hole, 16, center hole.
Embodiment
Below in conjunction with accompanying drawing the utility model is further specified
With reference to Fig. 1: core bar (1) is divided into two-part up and down, and barrier film (11) center hole is passed on top, lower diaphragm plate (13) center hole (16) connects as one by screw thread and bottom, forms simultaneously to block the interior medium of valve pocket by the sealing of core bar (1) to external leakage; Lower cover (2), loam cake (8) and skeleton (12) connect by screw (14), will go up barrier film (11), lower diaphragm plate (13) and skeleton (12) and clamp, and form the interior medium of blocking-up valve pocket by the sealing to external leakage of last barrier film (11), lower diaphragm plate (13) outer edge; Set up the pressure chamber (10) of contain fluid pressure medium simultaneously, in pressure chamber (10), be filled with the pressure that liquid pressure medium is used for medium in the balance valve pocket.Peep hole (6) and peep hole (7) are respectively applied for checks whether interior medium of valve pocket and the interior liquid pressure medium of pressure chamber (10) have leakage phenomenon, and pad (3) and screw (4) are used to check whether barrier film (11), lower diaphragm plate (13) damage.Last envelope close (9) adopts y-type seal ring or O type to seal the examinee's name on an exam-paper so as to prevent fraudulence circle, is used for occluding pressure intracavity liquid pressure medium and passes through core bar (1) to external leakage, and the distance that flows through medium by adjustment seal ring and valve makes temperature be no more than operating range.
With reference to Fig. 2 and Fig. 3, last barrier film is
The disk of shape, lower diaphragm plate are vertical section
The disk of shape, the design of last barrier film (11), lower diaphragm plate (13) utilizes the incompressibility of liquid, makes the working pressure of barrier film reach 10Mpa.Liquid pressure medium in the pressure chamber (10) adopts the non-corrosiveness liquid pressure medium.
Claims (3)
1, a kind of no filler regulating valve rod sealing, comprise that core bar (1), lower cover (2), loam cake (8) device stop liquid pressure medium to seal (9) by core bar (1) to going up of external leakage on core bar, it is characterized in that core bar (1) is divided into two-part up and down, the center hole that barrier film (4), lower diaphragm plate (13) are passed in top connects as one by screw thread and bottom, forms the interior medium of blocking-up valve pocket simultaneously by the sealing of core bar (1) to external leakage; Lower cover (2), loam cake (8) and skeleton (12) connect by screw (14), will go up barrier film (11), lower diaphragm plate (13) and skeleton (12) and clamp, and form the interior medium of blocking-up valve pocket by the sealing to external leakage of last barrier film (11), lower diaphragm plate (13) cylindrical portion; Form the pressure chamber (10) of contain fluid pressure medium simultaneously, in pressure chamber (10), be filled with the liquid pressure medium of pressure medium in the balance valve pocket; Last sealing (9) is y-shaped ring or O RunddichtringO.
2, a kind of no filler regulating valve rod sealing according to claim 1 is characterized in that barrier film (11) is vertical section
The disk of shape, lower diaphragm plate (13) are vertical section and are
The disk of shape, the heart respectively has center hole (15), (16) that can penetrate core bar therein.
3, a kind of no filler regulating valve rod sealing according to claim 1, it is characterized in that on lower shell body and upper shell, being respectively equipped with check in the valve pocket in the medium and pressure chamber (10) the following peep hole (6) of liquid pressure medium and on peep hole (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420078766 CN2725676Y (en) | 2004-08-16 | 2004-08-16 | Filler less regulating valve valve rod seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420078766 CN2725676Y (en) | 2004-08-16 | 2004-08-16 | Filler less regulating valve valve rod seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2725676Y true CN2725676Y (en) | 2005-09-14 |
Family
ID=35040395
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420078766 Expired - Fee Related CN2725676Y (en) | 2004-08-16 | 2004-08-16 | Filler less regulating valve valve rod seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2725676Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3714992A1 (en) * | 2019-03-29 | 2020-09-30 | Robatech AG | Device for dispensing a flowable medium and method for operating such a device |
-
2004
- 2004-08-16 CN CN 200420078766 patent/CN2725676Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3714992A1 (en) * | 2019-03-29 | 2020-09-30 | Robatech AG | Device for dispensing a flowable medium and method for operating such a device |
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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: 20050914 Termination date: 20130816 |