CN203809794U - Valve element structure with double guides - Google Patents
Valve element structure with double guides Download PDFInfo
- Publication number
- CN203809794U CN203809794U CN201420079489.1U CN201420079489U CN203809794U CN 203809794 U CN203809794 U CN 203809794U CN 201420079489 U CN201420079489 U CN 201420079489U CN 203809794 U CN203809794 U CN 203809794U
- Authority
- CN
- China
- Prior art keywords
- valve
- spool
- guide sleeve
- valve seat
- guiding
- 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 - Lifetime
Links
- 230000033001 locomotion Effects 0.000 claims abstract description 12
- 210000003205 muscle Anatomy 0.000 claims description 11
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 7
- 239000000956 alloy Substances 0.000 claims description 4
- 229910045601 alloy Inorganic materials 0.000 claims description 4
- 229910052757 nitrogen Inorganic materials 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 239000000945 filler Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 9
- 230000005514 two-phase flow Effects 0.000 abstract description 7
- 238000001816 cooling Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 230000008685 targeting Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Details Of Valves (AREA)
- Lift Valve (AREA)
Abstract
Disclosed is a valve element structure with double guides. The valve element structure comprises a valve body, wherein a valve seat is installed in the valve body, a valve rod penetrates a valve cover, the end of the valve rod is fixedly connected with a valve element, a window is formed in the lower portion of the valve element to form a lower guide and forms an overflowing surface with the valve seat, a guide sleeve for the upper portion of the valve element to penetrate is arranged at the lower end of the valve cover, and an upper guide is formed between the valve element and the guide sleeve. During a process of from full-close to full-open of a valve, the valve element is provided with the two guides, so that stability of the valve element component during movement is greatly improved; the valve element structure is mainly applicable to an occasion where a medium is two-phase flow, particularly to an occasion for adjusting high pressure differential.
Description
Technical field
The utility model relates to a kind of valve that is mainly used in the two Pilot poppet structures under deep cooling operating mode, be especially suitable for the valve of the two Pilot poppet structures in the technological process of two phase flow, belong to low temperature mechanical equipment coordination valve part.
Background technique
In the technological process of existing two phase flow, as in air separation equipment, the deep cooling such as liquid air, liquid nitrogen (196 ° of C) MEDIA FLOW is when modulating valve throttle orifice, its pressure decreased, when pressure arrives or during lower than saturation vapour pressure in this fluid place situation, partially liq is just vaporizated into gas, produces bubble, forms the gas-liquid two-phase phenomenon that coexists.When medium leaves throttle orifice, pressure recovers again gradually, and bubble breaks, and produces and causes valve high vibration compared with large unbalance power.Existing common single-seat adjusting valve only depends on the guide sleeve guiding on spool top, and the result causing is when there is larger unbalanced force, and whole valve hole part is just than being easier to produce vibration.Serious vibration, spool can be shaken disconnected.
Model utility content
The purpose of this utility model is to overcome the deficiency that prior art exists, and provide a kind of for all kinds of modulating valve, in two phase flow technological process, can effectively resist the impact that in valve body, unbalanced force produces valve core movement, improve the valve of two Pilot poppet structures of valve core movement stability.
The purpose of this utility model completes by following technical solution, the valve of described pair of Pilot poppet structure, it mainly contains a valve body, one valve seat is installed in this valve body, between valve body top and valve gap, have seal ring, a valve rod penetrates from valve gap, is fixed with a spool being placed on valve seat in its end, described spool bottom offers the window that is formed with flow-passing surface with valve seat, and forms lower guiding; The underpart of described valve gap is provided with a guide sleeve passing for spool top, and between spool and guide sleeve, is forming guiding; Like this valve by complete shut-down in the process of standard-sized sheet, spool all has two guiding, the stability while so just having improved greatly valve hole part motion.Be used for adapting to the occasion that medium is two phase flow, be particularly useful for the adjusting occasion of High Pressure Difference.
Described valve seat is by screw threads for fastening in valve body, and the cold cover mode after described guide sleeve soaks by low temperature liquid nitrogen is directly pressed into the bottom of valve gap; The muscle pin of described formation spool window has guiding clearance with valve seat in valve seat, and spool top is inserted in the guide sleeve of valve gap, is upper and lower guide movement together with muscle pin is in valve seat.
Described valve gap is long tubular valve gap, and valve rod passes in the middle of valve gap, and lower end is connected with the spool guide rod that is arranged in guide sleeve, in the middle of the filler part that install from valve gap top upper end, passes.
For avoiding valve seat and the guide sleeve of spool and guiding to kill in deep cooling operating mode (196 ° of C), the inner side of described valve seat inner side and guide sleeve respectively on the inwall adjacent with spool guide rod with muscle pin all heap be welded with the Si Tailai alloy of increase wear resistance.
The utility model is mainly used in, in the two phase flow technological process of all kinds of modulating valve, being particularly useful for the adjusting occasion of High Pressure Difference, and it can resist the impact that in valve body, unbalanced force produces valve core movement effectively, improves the stability of valve core movement.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of spool described in the utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in detail: shown in Fig. 1, the valve of described in the utility model pair of Pilot poppet structure, it mainly contains a valve body 1, one valve seat 3 is installed in this valve body 1, between valve body 1 top and valve gap 5, has 7, valve rods 6 of seal ring to penetrate from valve gap 5, in its end, be fixed with a spool 2 being placed on valve seat, described spool 2 bottoms offer the window that is formed with flow-passing surface with valve seat 3, and form lower guiding, as shown in Figure 2; The underpart of described valve gap 5 is provided with a guide sleeve 4 passing for spool top, and between spool and guide sleeve 4, is forming guiding.
Valve seat 3 use screw threads for fastening described in the utility model are in valve body 1, and the cold cover mode after described guide sleeve 4 soaks by low temperature liquid nitrogen is directly pressed into the bottom of valve gap 5; The muscle pin 9 of described formation spool window had ebb interval with valve seat 3 in valve seat 3, and spool 2 tops are inserted in the guide sleeve 4 of valve gap 5, are upper and lower guide movement together with muscle pin 9 is in valve seat 3.
Described valve gap 5 is long tubular valve gap, and valve rod passes in the middle of valve gap, and lower end is connected with the spool guide rod that is arranged in guide sleeve, in the middle of the filler part that install from valve gap top upper end, passes.
Described valve seat 3 inner sides and the inner side of guide sleeve 4 respectively on the inwall adjacent with spool guide rod with muscle pin 9 all heap be welded with the Si Tailai alloy that increases wear resistance.
Shown in embodiment: Fig. 1,2, the utility model mainly comprises the parts such as valve body 1, spool 2, valve seat 3, guide sleeve 4, valve gap 5, valve rod 6, seal ring 7, double-screw bolt 8.On described spool 2, have window 10, window and valve seat 3 form flow-passing surface, different according to aperture, can carry out pressure and Flow-rate adjustment; Described spool 2, in movement process, forms between spool 2 and valve seat 3 between the guide sleeve 4 in guiding, spool 2 and valve gap 5 and forms and lead, like this valve by complete shut-down in the process of standard-sized sheet, spool 2 has two guiding all the time.Stability while so just having improved greatly spool 2 component movement.Be used for adapting to the occasion that medium is two phase flow, be particularly useful for the adjusting occasion of High Pressure Difference.
Described two Pilot poppet structures, valve seat 3 use screw threads for fastening are in valve body 1, and guide sleeve 4 is pressed into by cold cover mode in the valve gap 5 of valve, and guide sleeve 4 use low temperature liquid nitrogens are directly pressed in valve gap 5 after soaking.Form the muscle pin 9 of spool window in valve seat 3, and have certain interval with valve seat 3, spool 2 upper seat are in the guide sleeve 4 of valve gap 5, and valve is from complete shut-down to standard-sized sheet, and muscle pin 9 is all the time in the interior motion of valve seat 3, and spool 2 top targeting parts are all the time in guide sleeve 4.
Valve rod 6 is fixedly connected with spool 2, and by valve rod 6 transmission power, to spool 2, valve body 1 is connected by double-screw bolt 8 with valve gap 5, and centre is pressed with seal ring 7.
Described two Pilot poppet structures, for avoiding spool 2 and valve seat 3 and the guide sleeve 4 of guiding to kill in deep cooling operating mode (196 ℃), described valve seat 3 inner sides, the equal built-up welding Si Tailai alloy of guide sleeve 4, increase wear resistance.
Claims (3)
1. the valve core structure of two guiding, it mainly contains a valve body (1), one valve seat (3) is installed in this valve body (1), between valve body (1) top and valve gap (5), there is seal ring (7), a valve rod (6) penetrates from valve gap (5), in its end, be fixed with a spool (2) being placed on valve seat, it is characterized in that described spool (1) bottom offers the window that is formed with flow-passing surface with valve seat (3), and form lower guiding; The underpart of described valve gap (5) is provided with a guide sleeve (4) passing for spool top, and between spool (2) and guide sleeve (4), forms upper guiding; Described valve seat (3) is by screw threads for fastening in valve body (1), and the cold cover mode after described guide sleeve (4) soaks by low temperature liquid nitrogen is directly pressed into the bottom of valve gap (5); The muscle pin (9) of described formation spool window has guiding clearance with valve seat (3) in valve seat (3), and spool (2) top is inserted in the guide sleeve (4) of valve gap (5), is upper and lower guide movement together with muscle pin (9) is in valve seat (3).
2. the valve core structure of two guiding according to claim 1, it is characterized in that described valve gap (5) is for long tubular valve gap, valve rod (6) passes in the middle of valve gap (5), lower end is connected with the spool guide rod that is arranged in guide sleeve (4), in the middle of the filler part that install from valve gap (5) top upper end, passes.
3. the valve core structure of two guiding according to claim 1, the Si Tailai alloy that is welded with increase wear resistance is all piled on the inwall adjacent with spool guide rod with muscle pin (9) respectively in the inner side that it is characterized in that described valve seat (3) inner side and guide sleeve (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420079489.1U CN203809794U (en) | 2014-02-25 | 2014-02-25 | Valve element structure with double guides |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420079489.1U CN203809794U (en) | 2014-02-25 | 2014-02-25 | Valve element structure with double guides |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203809794U true CN203809794U (en) | 2014-09-03 |
Family
ID=51448544
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420079489.1U Expired - Lifetime CN203809794U (en) | 2014-02-25 | 2014-02-25 | Valve element structure with double guides |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203809794U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103821976A (en) * | 2014-02-25 | 2014-05-28 | 杭州杭氧工装泵阀有限公司 | Valve element structure with double guiding structures |
-
2014
- 2014-02-25 CN CN201420079489.1U patent/CN203809794U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103821976A (en) * | 2014-02-25 | 2014-05-28 | 杭州杭氧工装泵阀有限公司 | Valve element structure with double guiding structures |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140903 |
|
| CX01 | Expiry of patent term |