CN2900957Y - High pressure valve - Google Patents
High pressure valve Download PDFInfo
- Publication number
- CN2900957Y CN2900957Y CN 200620091059 CN200620091059U CN2900957Y CN 2900957 Y CN2900957 Y CN 2900957Y CN 200620091059 CN200620091059 CN 200620091059 CN 200620091059 U CN200620091059 U CN 200620091059U CN 2900957 Y CN2900957 Y CN 2900957Y
- Authority
- CN
- China
- Prior art keywords
- valve
- spool
- core housing
- valve core
- high pressure
- 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
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Abstract
The utility model relates to a high-pressure valve, comprising a valve body connected with the conduit, and a configurative space connected with a rear inner portion of the valve body and a port plate and a lateral bonnet, the utility model is characterized by a spool cover, a spool and a spring are provided in the configurative space, spool holes are openly provided on both ends of the spool cover, wherein one end of the spool with a spring are separately provided in the spool holes, the spool sleeved body is openly provided thru flow hole which are internally connected with both extremities of the spool holes, the spool on both sides of the spool sleeved body and the diverting flow circuit outlet of the spool sleeved body sides are contacted, the spool sleeve is capable of rising up and down in the configurative space, forming a switch between the fluid inlet and the connected bilateral diverting flow circuit. A complete force balance to the valve rod and a seal self-compensation increases the response speed of switch valve and improves the sealing property effectively.
Description
One, technical field: the utility model relates to a kind of high pressure valve that uses in the high-pressure liquid pipeline of carrying, fluid in particularly a kind of restrained line flows, just can constrain fluids flow with little driving force, and make and open and close easily, and high-pressure liquid cutting-off valve with wiper seal self compensation function.
Two, background technique: valve is the flow of streaming flow in the confinement tube, the parts of pressure.Be divided into cutting-off valve, check valve, pressure loading valve etc. with the application purpose difference.
Above-mentioned cutting-off valve is to cut off fluid to flow, and shutoff valve is arranged.The valve body two ends of shutoff valve are that fluid is gone into, exported, and going into, go out portion is flange.On the inherent horizontal center line of valve body seal valve seat is set, the sealed member on valve seat top is a valve plate, and the valve plate upper convex portion is connected with valve rod, and sealing part adopts sealings such as " O " type circle, filler, tetrafluoro in the valve.Valve rod top is connected with handwheel with screw thread, and during rotation hand wheel, valve plate produces ascending, descending with valve rod, forms opening or closing of shutoff valve.
Another kind of cutting-off valve is a gate valve, and the valve body two ends are going into, exporting of fluid, goes into, export department is flange.Valve inner is a containing space, and closure member is set in the containing space.Closure member is a flashboard cover, two flashboards.The containing space two ends are provided with seam, melting welding valve seat on the seam.Closure member is used with valve rod and is threaded, the handwheel that is threaded on valve rod top.Rotate handwheel, closure member produces ascending, descending with valve rod, and gate valve is opened or closed.
Above-mentioned gate valve as shown in Figure 1, runner 102 connects with valve body 100, has a valve seat 105 to contact with wedge shape closure member 106 on the breakthrough part seam, closure member 106 tops are that the tubulose containing space on valve body top can make closure member 106 ascending, descendings.
Closure member 106 is connected with threaded stem 110, and this threaded stem 110 connects with the valve gap on tubulose containing space top and links to each other.Rotate handwheel, threaded stem and closure member 106 produce ascending, descending.Be that closure member 106 is raised to tubulose containing space portion 105 ones of valve seats.
Above-mentioned several existing valve, surface of contact often causes seal failure because of entering of gas and foreign matter produces cavitation erosion or abrade during open and close.
The adsorbate of fluid is accumulated on valve internal or the surface of contact in addition, thereby has influenced the sealability of valve, and produces the pressure pulsation phenomenon of moment.
Three, summary of the invention:
1, goal of the invention: the utility model provides a kind of high pressure valve, its objective is when solving existing cutting-off valve open and close that surface of contact often produces cavitation erosion because of entering of gas and foreign matter or scratch causes seal failure, and the adsorbate of fluid, be accumulated on valve internal or the surface of contact, make the seal failure of valve, and produce the problems such as pressure pulsation phenomenon of moment.
2, technological scheme: the utility model is achieved through the following technical solutions:
A kind of high pressure valve, it is mainly by the valve body that is connected with pipeline, and valve body is connected the inner containing space that forms in back and constitutes with thrust plate and side valve lid; It is characterized in that: valve core housing, spool, spring are set in the containing space: the valve core housing two ends have spool bore, one end of spool is respectively in spring is arranged on spool bore, have through flow hole on the body of valve core housing with two ends spool bore internal communication, the body of valve core housing and on through flow hole face the fluid input setting of valve body, the spool of valve core housing body both sides contacts with the outlet of the shunting stream of valve body both sides, valve core housing can ascending, descending in containing space, shunts between the stream in fluid input and the both sides that are communicated with it and forms switch.
On the mating face of side valve lid and valve body thrust plate is set, the spool contacting point with valve body internal valve core retainer plate both sides on the thrust plate is a sliding sealing surface, and sliding sealing surface is provided with the guidance tape that makes things convenient for valve core housing and two ends spool slip lifting.
The sliding sealing surface that contacts with spool is provided with solid lubricant.
Valve core housing is connected with the valve rod lower end, the connecting rod that valve rod is as a whole, and the valve rod upper end is connected with the drive unit that drives the valve core housing integral elevating.
Through flow hole is at body four pipelines to be set upwards directly, two pipelines is set on axially, per two radial line and an axial pipeline connection, and the two ends of two axial pipelines all are communicated with the spool bore at valve core housing two ends.
3, advantage and effect: by the enforcement of technical solutions of the utility model, surface of contact often produces cavitation erosion because of entering of gas and foreign matter or scratch causes seal failure in the time of can solving existing cutting-off valve open and close well, and the adsorbate of fluid, be accumulated on valve internal or the surface of contact, make the seal failure of valve, and produce the problems such as pressure pulsation phenomenon of moment.The utility model has changed the valve core housing of existing high-pressure shut-off and spool and in valve body direction has been set, changed the flow direction of cutting off fluid, make valve core housing and spool in the containing space realize the switch of valve in face of the fluid input lifting, it is the stream pass valve of fluid, meets the basic principle of valve, and stability is better than fluid stream and drives valve, can not resemble stream holds and makes high-pressure liquid directly impact spool the valve, the spool jitter phenomenon that when closing, occurs, thus the bulk life time of valve influence, the increase rate of fault.The utility model spool contacts with the fluid outflow opening, the high-pressure liquid that flows into does not directly impact spool, spool shake in the time of can not occurring closing, and the setting of opening on the valve core housing, make flow of high-pressure fluid fashionable, flow into simultaneously in the spool bore at valve core housing two ends,, make spool close the self-compensating better effects if of back sealing like this in the double action of the spring force of high-pressure liquid.It also has following advantage:
1.. use the advantage of thrust plate: 1. replaceable, do not take engineering time; 2. can repair, save cost, reduce maintenance cost; 3. can adopt the high performance alloys material, the overall cost of high pressure valve is reduced, and overall performance be constant;
2.. the advantage of guiding is set: 1. do not have when guiding spool to be with matching gap not vertical with sliding sealing surface with spool, form the split-flow opening that bites and cause the valve seal inefficacy, can not use; 2. add a guidance tape on the split-flow opening, make split-flow opening become two semicircles, guarantee spool and sliding sealing surface, parallel all the time moves, and can not occurring bites causes seal wear; And embed solid lubricant on sliding sealing surface 24 surface of contact and guarantee sliding effect, the phenomenon of dry friction can not occur;
3.. adopt the advantage of whole valve rod: 1. whole valve rod guarantees that under hydrodynamic pressure pulsation condition valve rod is stable, can not cause phenomenon of rupture, guarantees equipment safety operation.
4.. reduce arm and driven power, avoided dry friction, prolonged the working life of two slip surfaces.
Four, description of drawings: accompanying drawing 1 is the internal structure schematic representation of conventional high-tension cut-off valve;
Accompanying drawing 2 is the surface structure schematic representation of the utility model high-pressure shut-off;
Accompanying drawing 3 is the assembly structure schematic representation of the utility model high pressure valve;
Accompanying drawing 4 is the valve core structure schematic representation of the utility model high pressure valve.
Accompanying drawing 5 is the structural representation that the spool of the utility model high pressure valve is connected with valve rod;
Five, embodiment:
Below in conjunction with accompanying drawing the utility model is described in detail as follows, but does not limit the utility model because of following embodiment.
Among the figure: 2. valve body; 4. support; 6,8. flange; 10,12. thrust plates; 14. drive unit; 16,18. side valves lid; 20. catchment port; 22a, 22b. split-flow opening; 24. sliding sealing surface; 30. valve core housing; 32,34. spools; S1, S2. spring; 36. valve rod; The upper and lower valve gap of 40a, 40b..
Embodiment 1:
As accompanying drawing 2,3, shown in 4, a kind of high pressure valve of the utility model, its side will comprise the valve body 2 that the pipeline that flows with the fluid levels direction is connected, above-mentioned valve body 2 with thrust plate 16 is housed, 18 side valve lid 10,12 connect its interior containing space that forms of back, be provided with valve core housing 30 in the containing space, in the spool bore at valve core housing 30 two ends spool 32 is set, 34, spool 32,34 respectively with spring S1, S2 is pressed in the spool bore together, spool 32,34 with thrust plate 16,18 sliding sealing surface 24 contacts, valve core housing 30 can lifting in containing space, valve rod 36 bottoms connect valve core housing 30, top connects drive unit 14, drive unit 14 makes valve core housing 30 slide with sliding sealing surface by valve rod 36 and rises, fall, shunt between the stream in fluid input and the both sides that are communicated with it and to form switch, as shown in Figure 5, the connecting rod that valve rod 36 is as a whole, guaranteed its serviceability, have through flow hole on the body of valve core housing 30 with two ends spool bore internal communication, the body of valve core housing 30 faces the fluid input setting of valve body, the body inlet porting of valve core housing 30 faces the through flow hole of fluid input, through flow hole is at body four pipelines to be set upwards directly, axially two pipelines are set, per two radial line and an axial pipeline connection, article two, the two ends of axial pipeline all are communicated with the spool 32 of valve core housing 30 body both sides with the spool bore at valve core housing 30 two ends, 34 contact with the outlet of the shunting stream of valve body 2 both sides.After valve cut out, high-pressure liquid and spring force double action by opening flows into closely contacted two spools all the time with sliding sealing surface place fluid output, realized the sealing auto-compensation.Above-mentioned sliding sealing surface 24 is provided with the guidance tape 26b that makes things convenient for valve core housing 30 and 32, the 34 slip liftings of two ends spool.The sliding sealing surface that contacts with spool 32,34 is provided with solid lubricant, guarantees dry friction can not occur.
Promptly, 2 liang of side flanges of above-mentioned valve body 6,8 are the entry and exit of fluid, and form containing spaces with the side valve lid 10,12 that thrust plate 16,18 is housed, flow mouth in the containing space on the sliding sealing surface is split-flow opening 22a, 22b, valve core housing 30 can be in containing space ascending, descending formed the split-flow opening 22a on 32,34 pairs of sliding sealing surfaces 24 of spool in 30 liang of stomidiums of valve core housing, the open and close of 22b.
Above-mentioned, guidance tape 26a, the 26b on split-flow opening 22a, the 22b on thrust plate 16,18 play the guiding role when being spool 32,34 ascending, descendings.
In addition, valve core housing 30 can be driven by the drive unit of electromagnet congenerous on the solenoid valve.Like this, the spool on the valve core housing 30 32,34 just can carry out optionally open and close to split-flow opening 22a, 22b.
And, be valve rod 36 in valve body 2 containing space internal valve core retainer plates 30 central upper with the vertical connected element that is connected drive unit 14 of valve core housing, valve rod 36 bottoms are passed in the pilot hole that valve core housing 30 enters valve body 2 bottoms.
Above-mentioned pilot hole is arranged on bottom flange 40b, and bottom flange 40b is connected with valve body 2 bottoms, and is arranged in the center hole of support 4, and the lower end of pilot hole is a seal structure, and support 4 is connected with valve body 2 bottoms.
Above-mentioned valve body 2 by thrust plate 16,18, side valve lid 10,12, end valve gap 40a, bottom flange 40b, bottom flange 40b forms.
Be split-flow opening 22a, the 22b of above-mentioned fluid, behind catchment port 22a, 22b, flow out outlet through the both sides fluid passage from the containing space of the valve body that enters the mouth.
Above-mentioned, in the valve core housing 30 two ends spool bore spring S is set
1, S
2, and be pressed into spool 32,34, make valve core housing 30 and spool 32,34 and spring form the spool bore space.Through flow hole on the valve core housing cylindrical communicates with spool bore, and spring force and hydrodynamic pressure are pressed against spool 32,34 on the sliding sealing surface 24.
That is, the utility model is by the driving force of drive unit 14, and actuate valve stem 36 makes valve core housing 30 ascending, descendings.The spool 32,34 at valve core housing 30 two ends forms split-flow opening 22a, 22b on the sliding sealing surface. switch, and the fluid passage by both sides is to catchment port 20a, 20b, the mobile break-make of control high-pressure liquid.
When valve core housing 30 along sliding sealing surface 24 rise, when exposing split-flow opening 22a, 22b, by the pipeline that is connected with flange, high-pressure liquid promptly flows into, flows out.On the contrary, when valve core housing 30 descends along sliding sealing surface 24, when spool 32,34 hid split-flow opening 22a, 22b, the high-pressure liquid of the pipeline that connects by flange 6,8 promptly was cut off.
The beneficial effect that the utility model provides improves the speed of response of valve under the high-pressure liquid state, has improved sealability greatly, and can prevent the generation of water hammer.
The utility model is in the hot rolling de-scaling of steel industry, can be used as Scale removing valve uses, control de-scaling high pressure water, and can close in high pressure water moment the time, prevent the generation of water hammer, when valve core housing 30 inner spools 32,34 produced wearing and tearing, the high-pressure liquid of spring s1, s2 in the valve core housing 30 and introducing valve core housing 30 two ends spool bore came on the sliding sealing surface valve core housing of wearing and tearing, has formed the automatic compensation of spool wearing and tearing.
The utility model is logical the control high-pressure liquid, when disconnected, with small driving force, just can be easy to the switch of control valve, and have good sealing effect.
Claims (5)
1, a kind of high pressure valve, it is mainly by the valve body that is connected with pipeline (2), and valve body (2) is connected the inner containing space that forms in back and constitutes with thrust plate (10,12) and side valve lid (16,18); It is characterized in that: valve core housing (30), spool (32,34), spring (S1, S2) are set in the containing space; Valve core housing (30) two ends have spool bore, one end of spool (32,34) is arranged in the spool bore with spring (S1, S2) respectively, have through flow hole on the body of valve core housing (30) with two ends spool bore internal communication, the body of valve core housing (30) and on through flow hole face the fluid input setting of valve body, the spool (32,34) of valve core housing (30) body both sides contacts with the outlet of the shunting stream of valve body (2) both sides, valve core housing (30) can ascending, descending in containing space, shunts between the stream in fluid input and the both sides that are communicated with it and forms switch.
2, high pressure valve according to claim 1, it is characterized in that: on the mating face of side valve lid (10,12) and valve body (2) thrust plate (16,18) is set, thrust plate (1 6,18) is gone up and spool (32, the 34) contacting point of valve body (2) internal valve core retainer plate (30) both sides is sliding sealing surface (24), and sliding sealing surface (24) is provided with the guidance tape (26b) that makes things convenient for valve core housing (30) and two ends spool (32,34) slip lifting.
3, high pressure valve according to claim 2 is characterized in that: the sliding sealing surface that contacts with spool (32,34) is provided with solid lubricant.
4, high pressure valve according to claim 1, it is characterized in that: valve core housing (30) is connected with valve rod (36) lower end, the as a whole connecting rod of valve rod (36), valve rod (36) upper end is connected with the drive unit (14) that drives valve core housing (30) integral elevating.
5, high pressure valve according to claim 1, it is characterized in that: through flow hole is at body four pipelines to be set upwards directly, axially two pipelines are set, per two radial line and an axial pipeline connection, the two ends of two axial pipelines all are communicated with the spool bore at valve core housing (30) two ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620091059 CN2900957Y (en) | 2006-05-29 | 2006-05-29 | High pressure valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620091059 CN2900957Y (en) | 2006-05-29 | 2006-05-29 | High pressure valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2900957Y true CN2900957Y (en) | 2007-05-16 |
Family
ID=38085120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620091059 Expired - Lifetime CN2900957Y (en) | 2006-05-29 | 2006-05-29 | High pressure valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2900957Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100392297C (en) * | 2006-05-29 | 2008-06-04 | 李原华 | High pressure valve |
| CN112503203A (en) * | 2019-09-16 | 2021-03-16 | 浙江三花制冷集团有限公司 | Control valve |
| CN117386836A (en) * | 2023-12-13 | 2024-01-12 | 中国空气动力研究与发展中心超高速空气动力研究所 | Quick response coaxial valve suitable for pulse wind tunnel and application method thereof |
-
2006
- 2006-05-29 CN CN 200620091059 patent/CN2900957Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100392297C (en) * | 2006-05-29 | 2008-06-04 | 李原华 | High pressure valve |
| CN112503203A (en) * | 2019-09-16 | 2021-03-16 | 浙江三花制冷集团有限公司 | Control valve |
| CN112503203B (en) * | 2019-09-16 | 2024-04-26 | 浙江三花商用制冷有限公司 | Control valve |
| CN117386836A (en) * | 2023-12-13 | 2024-01-12 | 中国空气动力研究与发展中心超高速空气动力研究所 | Quick response coaxial valve suitable for pulse wind tunnel and application method thereof |
| CN117386836B (en) * | 2023-12-13 | 2024-02-02 | 中国空气动力研究与发展中心超高速空气动力研究所 | Quick response coaxial valve suitable for pulse wind tunnel and application method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20080604 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |