CN202901510U - Elastic valve stuffing press cover - Google Patents
Elastic valve stuffing press cover Download PDFInfo
- Publication number
- CN202901510U CN202901510U CN 201220623539 CN201220623539U CN202901510U CN 202901510 U CN202901510 U CN 202901510U CN 201220623539 CN201220623539 CN 201220623539 CN 201220623539 U CN201220623539 U CN 201220623539U CN 202901510 U CN202901510 U CN 202901510U
- Authority
- CN
- China
- Prior art keywords
- gland
- press cover
- elastic valve
- spring
- 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
The utility model relates to a press cover, in particular to an elastic valve stuffing press cover. The elastic valve stuffing press cover comprises a press cover. A spring is connected below the press cover. A sealing press ring is connected below the spring. According to the elastic valve stuffing press cover, expansion and shrinkage caused by temperature variation can be compensated, the temperature of a valve body is maintained between -10 DEG C to 220 DEG C, pressure of the press cover to stuffing is small and oil leakage of a valve rod caused by the temperature variation is avoided.
Description
Technical field
The utility model relates to a kind of gland, is specifically related to a kind of elastic valve Gland.
Background technique
The Circulation and Hot Oil Spray system of rectifier unit comes controlling opening of valve with pneumatic diaphragm control valve, the sealing of regulating valve rod is generally regulated by artificial degree of tightness valve packing gland bolt, if valve stem packing is pressed to get tension, regulate easy jam during operation, valve gap support and valve rod easily rupture; If it is too loose that filler is pressed, when then valve opening and closing operated, medium easily leaked; Because temperature is 220 ℃ during the thermal oil system normal operation; temperature is normal temperature during shutdown; minimum to-10 ℃; the temperature difference is larger; the variation of gland bolt Yin Wendu and the deformation range that expands with heat and contract with cold is also larger, and valve gland is the integral rigidity structure, lacks flexibility; the pressure that causes being added in filler changes greatly, easily produces leakage phenomenon.
Summary of the invention
It is a kind of simple in structure, easy to use that the purpose of this utility model is to provide, and the dilation that causes because of temperature variation had the elastic valve Gland of compensating action.
The technical solution of the utility model is:
The elastic valve Gland comprises gland, gland below linking springs, and the spring below connects seal joint.
Concrete, spring adopts cylindroid helicalcoil compression spring, and its ratio of height to diameter is less than 2.6.
Concrete, the spring outer diameter size is less than the outside dimension of gland, and the outside dimension of gland outside dimension and seal joint is identical.
During work, the utility model is enclosed within on the valve rod, the gland upper end connects gland flange.
The beneficial effects of the utility model are: the utility model has compensating action to the dilation that causes because of temperature variation, and the temperature of valve body is in-10 ℃～220 ℃, and gland is less to the pressure of filler, has avoided the valve rod leakage of oil that causes because of temperature variation; The utility model has corresponding relation to the pressure of filler and the deformation length of spring, and the length after the measuring spring compression can accurately be determined gland to the pressure of filler, the convenient grasp; Because little to the pressure range of filler, the loss that can alleviate filler reduces the replacement number of times, reduces working strength.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the utility model scheme of installation.
1 gland bolt, 2 gland flange, 3 glands, 4 springs, 5 seal joints, 6 fillers, 7 valve rods.
Embodiment
During work, such as Fig. 2, elastic valve filler 6 glands 3 are enclosed within on the valve rod 7, seal joint 5 lower ends contact with filler 6, and gland 3 upper ends are connected with gland flange 2, and gland 3 bolts 1 are fixing with gland flange 2.
Should be noted that at last: above embodiment is only in order to illustrate that the technical solution of the utility model is not intended to limit; Although with reference to preferred embodiment the utility model is had been described in detail, those of ordinary skill in the field are to be understood that: still can make amendment or the part technical characteristics is equal to replacement embodiment of the present utility model; And not breaking away from the spirit of technical solutions of the utility model, it all should be encompassed in the middle of the technological scheme scope that the utility model asks for protection.
Claims (3)
1. the elastic valve Gland comprises gland, it is characterized in that, gland below linking springs, and the spring below connects seal joint.
2. described elastic valve Gland according to claim 1 is characterized in that, spring adopts cylindroid helicalcoil compression spring, and its ratio of height to diameter is less than 2.6.
3. described elastic valve Gland according to claim 1 is characterized in that, the spring outer diameter size is less than the outside dimension of gland, and the outside dimension of gland outside dimension and seal joint is identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220623539 CN202901510U (en) | 2012-11-23 | 2012-11-23 | Elastic valve stuffing press cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220623539 CN202901510U (en) | 2012-11-23 | 2012-11-23 | Elastic valve stuffing press cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202901510U true CN202901510U (en) | 2013-04-24 |
Family
ID=48122181
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220623539 Expired - Fee Related CN202901510U (en) | 2012-11-23 | 2012-11-23 | Elastic valve stuffing press cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202901510U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110469714A (en) * | 2019-09-01 | 2019-11-19 | 永嘉企达知识产权咨询有限公司 | A kind of on-line maintenance gate valve |
-
2012
- 2012-11-23 CN CN 201220623539 patent/CN202901510U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110469714A (en) * | 2019-09-01 | 2019-11-19 | 永嘉企达知识产权咨询有限公司 | A kind of on-line maintenance gate valve |
| CN110469714B (en) * | 2019-09-01 | 2020-12-01 | 浙江慧博阀门科技有限公司 | Online maintenance gate valve |
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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: 20130424 Termination date: 20131123 |