CN202756762U - Single seat regulating valve for corrugated pipe sealing structure - Google Patents
Single seat regulating valve for corrugated pipe sealing structure Download PDFInfo
- Publication number
- CN202756762U CN202756762U CN 201220430861 CN201220430861U CN202756762U CN 202756762 U CN202756762 U CN 202756762U CN 201220430861 CN201220430861 CN 201220430861 CN 201220430861 U CN201220430861 U CN 201220430861U CN 202756762 U CN202756762 U CN 202756762U
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- CN
- China
- Prior art keywords
- valve
- sealing structure
- bellows
- corrugated pipe
- bonnet
- 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 single seat regulating valve for a corrugated pipe sealing structure. The single seat regulating valve for the corrugated pipe sealing structure comprises a valve body (1), an upper valve cover (8) and a middle valve cover (6), wherein the middle valve cover (6) is arranged between the upper valve cover (8) and the valve body (1), two ends of the middle valve cover (6) are respectively connected with the upper valve cover (8) and the middle valve cover (6) through bolts, the corrugated pipe (5) is arranged inside the middle valve cover (6), and a valve rod (4) is arranged inside the corrugated pipe (5) and welded to the corrugated pipe (5). The single seat regulating valve for the corrugated pipe sealing structure has the advantages that the service life is prolonged and the using safety is ensured.
Description
Technical field
The utility model relates to the valve field, especially a kind of corrugated tube sealing structure single-seat adjusting valve.
Background technique
Bellows regulating valve is an extension product of conventional modulating valve.Under the operating mode of routine, on the commercial Application such as petrochemical industry, food medicine, power station, filler is all used in motive sealing place of its valve rod.Can wear and tear along with increasing of valve rod time of movement when packing seal is used, cause a small amount of seepage of medium.At some special occasions, in hypertoxic, volatile, easy to leak, inflammable and explosive medium adjustment process, must guarantee that process medium is without leakage.The method that adopts at present adopts sylphon seal exactly.Utilize the elastic performance of bellows to guarantee the motive sealing of valve rod.Such complicated operation, cost is high, and sealability is bad, the maintenance trouble.
The model utility content
In order to overcome the deficiencies in the prior art, the utility model provides a kind of corrugated tube sealing structure single-seat adjusting valve.
Its technological scheme of the utility model solution is in order to achieve the above object: a kind of corrugated tube sealing structure single-seat adjusting valve, comprise valve body 1, bonnet 8 and middle valve gap 6, middle valve gap 6 is arranged between bonnet 8 and the valve body 1, the two ends of middle valve gap 6 respectively by bolt and bonnet 8 be connected valve gap 6 and be connected, be provided with bellows 5 in the described middle valve gap 6, be provided with valve rod 4 in the bellows 5, valve rod 4 is welded on the bellows 5.
According to the technical solution of the utility model, be provided with filler 9 and rotating prevention sleeve 7 in the bonnet 8, rotating prevention sleeve 7 is arranged on the below of filler 9.Bellows-welding just stretches and compress bellows during the valve rod action on valve rod, and medium remains in the middle valve gap; Damage such as bellows, the condiment at bonnet place forms secondary seal, guarantees that medium can not leak from valve rod.
According to the technical solution of the utility model, be provided with valve seat 2 in the valve body 1, be provided with spool 3 in the valve seat 2, spool 3 is connected by pin 11 with valve rod 4, and the outside of spool 3 is provided with guide sleeve 10.
The beneficial effects of the utility model are: whole bellows is at valve rod weld and middle valve gap and confined space of valve body composition, and during work, valve rod band movable valve plug moves up and down adjust flux, and bellows also compresses accordingly and stretches.The adding of rotating prevention sleeve has prevented the excessive rotation of bellows and has affected the life-span that stuffing box can play the effect of a secondary seal, prevents just in case bellows bursts causes catastrophic consequence, has guaranteed the Security of using.
Description of drawings
The utility model will illustrate by example and with reference to the mode of accompanying drawing, wherein:
Fig. 1 is sectional view of the present utility model;
Fig. 2 is the partial enlarged view at the utility model A place.
Reference character is: 1 is valve body, and 2 is valve seat, and 3 is spool, and 4 is valve rod, and 5 is bellows, and 6 is middle valve gap, and 7 is rotating prevention sleeve, and 8 is bonnet, and 9 is filler, and 10 is guide sleeve, and 11 is pin.
Embodiment
Disclosed all features in this specification, or the step in disclosed all methods or the process except mutually exclusive feature and/or step, all can make up by any way.
Disclosed arbitrary feature in this specification (comprising any accessory claim, summary and accompanying drawing) is unless special narration all can be replaced by other equivalences or the alternative features with similar purpose.That is, unless special narration, each feature is an example in a series of equivalences or the similar characteristics.
By a kind of corrugated tube sealing structure single-seat adjusting valve illustrated in figures 1 and 2, comprise valve body 1, bonnet 8 and middle valve gap 6, middle valve gap 6 is arranged between bonnet 8 and the valve body 1, the two ends of middle valve gap 6 respectively by bolt and bonnet 8 be connected valve gap 6 and be connected, be provided with bellows 5 in the described middle valve gap 6, be provided with valve rod 4 in the bellows 5, valve rod 4 is welded on the bellows 5.Be provided with filler 9 and rotating prevention sleeve 7 in the bonnet 8, rotating prevention sleeve 7 is arranged on the below of filler 9.Bellows-welding just stretches and compress bellows during the valve rod action on valve rod, and medium remains in the middle valve gap; Damage such as bellows, the condiment at bonnet place forms secondary seal, guarantees that medium can not leak from valve rod.Be provided with valve seat 2 in the valve body 1, be provided with spool 3 in the valve seat 2, spool 3 is connected by pin 11 with valve rod 4, and the outside of spool 3 is provided with guide sleeve 10.Whole bellows is at valve rod weld and middle valve gap and confined space of valve body composition, and during work, valve rod band movable valve plug moves up and down adjust flux, and bellows also compresses accordingly and stretches.The adding of rotating prevention sleeve has prevented the excessive rotation of bellows and has affected the life-span that stuffing box can play the effect of a secondary seal, prevents just in case bellows bursts causes catastrophic consequence, has guaranteed the Security of using.
The utility model is not limited to aforesaid embodiment.The utility model expands to any new feature or any new combination that discloses in this manual, and the arbitrary new method that discloses or step or any new combination of process.
Claims (3)
1. corrugated tube sealing structure single-seat adjusting valve, comprise valve body (1), bonnet (8) and middle valve gap (6), middle valve gap (6) is arranged between bonnet (8) and the valve body (1), the two ends of middle valve gap (6) respectively by bolt and bonnet (8) be connected valve gap (6) and be connected, it is characterized in that, be provided with bellows (5) in the middle valve gap (6), be provided with valve rod (4) in the bellows (5), valve rod (4) is welded on the bellows (5).
2. a kind of corrugated tube sealing structure single-seat adjusting valve according to claim 1 is characterized in that, is provided with filler (9) and rotating prevention sleeve (7) in the bonnet (8), and rotating prevention sleeve (7) is arranged on the below of filler (9).
3. a kind of corrugated tube sealing structure single-seat adjusting valve according to claim 1, it is characterized in that, be provided with valve seat (2) in the valve body (1), be provided with spool (3) in the valve seat (2), spool (3) is connected by pin (11) with valve rod (4), and the outside of spool (3) is provided with guide sleeve (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220430861 CN202756762U (en) | 2012-08-29 | 2012-08-29 | Single seat regulating valve for corrugated pipe sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220430861 CN202756762U (en) | 2012-08-29 | 2012-08-29 | Single seat regulating valve for corrugated pipe sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202756762U true CN202756762U (en) | 2013-02-27 |
Family
ID=47735946
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220430861 Expired - Fee Related CN202756762U (en) | 2012-08-29 | 2012-08-29 | Single seat regulating valve for corrugated pipe sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202756762U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103821948A (en) * | 2014-02-25 | 2014-05-28 | 杭州杭氧工装泵阀有限公司 | Bellows seal valve |
-
2012
- 2012-08-29 CN CN 201220430861 patent/CN202756762U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103821948A (en) * | 2014-02-25 | 2014-05-28 | 杭州杭氧工装泵阀有限公司 | Bellows seal valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130227 Termination date: 20190829 |