CN200986046Y - Buffering valve used in the time of ultra-high pressure load-off - Google Patents
Buffering valve used in the time of ultra-high pressure load-off Download PDFInfo
- Publication number
- CN200986046Y CN200986046Y CN 200620151734 CN200620151734U CN200986046Y CN 200986046 Y CN200986046 Y CN 200986046Y CN 200620151734 CN200620151734 CN 200620151734 CN 200620151734 U CN200620151734 U CN 200620151734U CN 200986046 Y CN200986046 Y CN 200986046Y
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- Prior art keywords
- valve
- valve core
- valve body
- spool
- hole
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- Expired - Fee Related
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Abstract
The utility model belongs to valve category. The proposal aims at solving the problem of a tremendous impact will be generated when uninstalling at extra high pressure. The utility model is composed of a valve body, a valve core, a compressed spring and limit component. The inside of the valve body has a step hole while the valve core is a step axis whose smaller end is conical surface and with a through hole at the middle; the larger diameter surface is provided with a plurality of incomplete cylinder grooves which are equally distributed as circumference. The compressed spring is arranged between the valve body and the valve core. The limit component is used for locating the axial direction position of the valve core. The valve core is fixed on the left and the liquid can flow freely under the function of the spring. The pressure difference makes the liquid flow towards right with high speed when uninstalling and then push the valve core close the valve body; the liquid flows through the hole and plays a part in damping; the valve core repositions automatically when the pressure is steady. The buffer valve can eliminate the impact vibration and noise caused by the uninstalling at extra high pressure, improve the working condition and prolong the service life of the machine, yet not influence the through flow of ordinary work.
Description
Technical field: the utility model belongs to valve type.It is specifically related to a kind of structure of trimmer valve of ultrahigh pressure unloading usefulness.
Technical background: hydraulic pressure is used more and more extensivelyr on industrial technology, and the trend of oriented more high pressure development.Traditional hydraulic system pressure is no more than 31.5MPa, and the hydrovalve below this pressure is quite ripe in engineering is used.But work as pressure greater than 31.5MPa, strict technical requirements all will be arranged all kinds of valves.When ultra-high pressure condition unloading of following moment, can form very big impact, appear as very big vibration and noise, equipment and operator are produced bad influence.
Summary of the invention: the purpose of this utility model is vibration and the special this programme that proposes of noise problem---the trimmer valve when being used in the ultrahigh pressure unloading that causes when ultra-high pressure condition unloads down for solving, it has adopted the principle of fluid damping to solve shock and vibration, can improve the working life of equipment, and improve working condition.
By as above design, the trimmer valve that this programme provided when being used in the ultrahigh pressure unloading, it is characterized in that it is made up of valve body, spool, pressure spring, the inner headed face of valve body is a step hole, the appearance of spool is a step axle, and both large-diameter portion are divided into relation movingly, and the small end of spool becomes the conical surface and center that one small through hole is arranged, on the big end cylndrical surface of spool a plurality of elongated slots are arranged, valve body and valve core chamber are equipped with pressure spring.
In this programme, the sectional shape of a plurality of elongated slots on the spool great circle cylinder be with axis parallel and circumference on uniform not exclusively cylindrical, its quantity is 4～8.The limit element that one spool is arranged at the big stomidium of valve body.
Adopt this programme can embody following superiority: 1. machine in service under ultra-high voltage environment, can cause the flow at high speed of liquid during unloading, form very big impact for each element on the pipeline, form vibration and noise, equipment and operator are caused bad influence; 2. a plurality of incomplete cylindrical grooves are arranged on the great circle cylinder of spool, can satisfy normally passing through of general flow at ordinary times, the instantaneous flow increment is very big when ultrahigh pressure unloads, to promote spool moves to right, the conical surface of spool props up and take in the hole of closed valve step hole, and fluid can only pass through the damping hole from spool, has reduced flow velocity, avoid vibration and noise, realized self regulating of pressure and flow; 3. this trimmer valve is simple in structure, and is easy for installation, and effect is obvious.
Description of drawings: Fig. 1, Fig. 2 are the structural representations that this programme is used in the trimmer valve in ultrahigh pressure when unloading, and Fig. 2 is the side view of Fig. 1.
Embodiment: the trimmer valve that this programme is used in ultrahigh pressure when unloading is the enormous impact that superhigh pressure liquid produces when alleviating unloading.It is made up of valve body 1, spool 2, spring 3 and limit element 4.Valve inner is a step hole, spool is a step axle, their large-diameter portion is divided into relation movingly, the small end of spool is the conical surface, there is a small through hole centre, a plurality of through-flow grooves are arranged on the major diameter face of spool, and this groove is the incomplete cylinder groove of circumference uniform distribution, and a pressure spring is arranged between valve body and the spool.A plurality of at ordinary times grooves can satisfy normal working flow, and the big flow of moment is pushed spool to right-hand when ultrahigh pressure unloads, and the conical surface is with the shoulder sealing of the hole on the valve body, super high pressure fluid can only flow by aperture, play damping function, when treating that pressure steadily gets off, valve core reset recovers normal state.This programme has been alleviated impact, has solved vibration and noise.It has simple in structure, reliable operation, improved working environment and improves the characteristics of life of equipment.
Claims (3)
1. one kind is used in the ultrahigh pressure trimmer valve in when unloading, it is characterized in that it is made up of valve body (1), spool (2), pressure spring (3), the inner headed face of valve body is a step hole, the appearance of spool is a step axle, both large-diameter portion are divided into relation movingly, the small end of spool becomes the conical surface and center that one small through hole is arranged, and on the big end cylndrical surface of spool a plurality of elongated slots is arranged, and valve body and valve core chamber are equipped with pressure spring.
2. according to the described trimmer valve of claim 1, it is characterized in that the sectional shape of a plurality of elongated slots on the spool great circle cylinder for axis parallel and circumference on uniform not exclusively cylindrical, its quantity is 4～8.
3. according to the described trimmer valve of claim 1, it is characterized in that being equipped with the limit element (4) of a spool at the big nose end of valve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620151734 CN200986046Y (en) | 2006-12-14 | 2006-12-14 | Buffering valve used in the time of ultra-high pressure load-off |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620151734 CN200986046Y (en) | 2006-12-14 | 2006-12-14 | Buffering valve used in the time of ultra-high pressure load-off |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200986046Y true CN200986046Y (en) | 2007-12-05 |
Family
ID=38915502
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620151734 Expired - Fee Related CN200986046Y (en) | 2006-12-14 | 2006-12-14 | Buffering valve used in the time of ultra-high pressure load-off |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200986046Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104896161A (en) * | 2015-06-16 | 2015-09-09 | 无锡市豫达换热器有限公司 | Flow control buffer value |
| CN105020444A (en) * | 2015-06-29 | 2015-11-04 | 黄福成 | Emergent cutoff valve |
| CN105042134A (en) * | 2015-06-29 | 2015-11-11 | 黄福成 | Rapid cut-off valve |
-
2006
- 2006-12-14 CN CN 200620151734 patent/CN200986046Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104896161A (en) * | 2015-06-16 | 2015-09-09 | 无锡市豫达换热器有限公司 | Flow control buffer value |
| CN104896161B (en) * | 2015-06-16 | 2017-11-14 | 无锡市豫达换热器有限公司 | A kind of flow controls trimmer valve |
| CN105020444A (en) * | 2015-06-29 | 2015-11-04 | 黄福成 | Emergent cutoff valve |
| CN105042134A (en) * | 2015-06-29 | 2015-11-11 | 黄福成 | Rapid cut-off valve |
| CN105020444B (en) * | 2015-06-29 | 2017-08-11 | 黄福成 | Quick action emergency 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: 20071205 Termination date: 20111214 |