CN201391622Y - Linear-motion digital valve regulation mechanism - Google Patents
Linear-motion digital valve regulation mechanism Download PDFInfo
- Publication number
- CN201391622Y CN201391622Y CN200920012768U CN200920012768U CN201391622Y CN 201391622 Y CN201391622 Y CN 201391622Y CN 200920012768 U CN200920012768 U CN 200920012768U CN 200920012768 U CN200920012768 U CN 200920012768U CN 201391622 Y CN201391622 Y CN 201391622Y
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- China
- Prior art keywords
- valve
- spool
- flow
- linear
- binary system
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Abstract
The utility model relates to a linear-motion digital valve regulation mechanism for a flow regulation valve, which comprises a valve seat, valve cores, a valve body, an upper valve cover, valve rods, gland covers and gland packing, wherein a plurality of valve cores are arranged on the valve seat, the fluid circulation area of each valve core is arranged according to the binary system; and flow is regulated by controlling the opening and closing states of each valve core. Each valve core is of a sleeve type structure, the side of the sleeve is provided with one or more holes as fluid passages, and the fluid passage area of each hole is arranged according to the binary system. The utility model has the following advantages: the precision is high, and the linear-motion regulation mechanism can reach any wanted precision, since the sleeve type valve cores are used, the rigidity of the valve rods is enhanced.
Description
Technical field
The utility model relates to a kind of flow control valve, particularly a kind of straight journey digital valve controlling mechanism.
Background technique
In the prior art, adjusting innervalve assembly in the control valve field all is the adjusting that realizes fluid flow by spool and the relative variation between the valve seat, its precision generally can only reach hundredths, and be a general numerical value, adding all modulating valve is in operation, theoretically, its final controlling element part all has false stroke.Not only reduced conventional valve regulation precision, and regulate whether to put in place and also be not too standard, dosed a feedback means for this reason, be used for reporting actual position, to increase reliability, certain this conventional valve can satisfy conventional market demands, but for the specific occasion of some very high specific industry of precision prescribed, does not just satisfy usage requirement.
Summary of the invention
The purpose of this utility model provides a kind of reasonable in design, straight journey digital valve controlling mechanism that precision is high.
For achieving the above object, the utility model is achieved through the following technical solutions:
Straight journey digital valve controlling mechanism comprises valve seat, spool, valve body, bonnet, valve rod, Gland, stuffing box packing, it is characterized in that, is provided with a plurality of spools on valve seat, and the fluid flow area of each spool is pressed binary system and arranged; By controlling the open and-shut mode of each spool, realize the adjusting of flow.
Described spool is a telescoping structure, and being provided with perforate in the side of sleeve is the fluid passage, and perforate is provided with one or more; The sectional area of each spool perforate is pressed binary system and is arranged.
The utility model has the advantages that:
1) precision height, that can realize the straight journey controlling mechanism anyly wants the precision that reaches.
2) use the sleeve type spool, improved the valve rod rigidity.
3) small valve core is easy to process, has reduced difficulty of processing.
Description of drawings
Fig. 1 is the structural representation of straight journey digital valve controlling mechanism;
Fig. 2 is that spool is arranged schematic representation;
Fig. 3-the 1st, spool is opened view;
Fig. 3-the 2nd, spool off status schematic representation.
Embodiment
See Fig. 1, straight journey digital valve controlling mechanism, comprise valve seat 1, spool 2, valve body 3, bonnet 4, valve rod 5, Gland 6, stuffing box packing 7, on valve seat 1, be provided with a plurality of spools 2, spool 2 tops are connected with valve rod 5, spool 2 matches with the hole on the bonnet 4, by moving up and down the realization Flow-rate adjustment.The flow of the fluid flow area of each spool 2 or each spool 2 of process is pressed binary system and is arranged; By controlling the open and-shut mode of each spool, realize Flow-rate adjustment.
See Fig. 2, spool is arranged schematic representation, can be by realize the binary system of flow at the Flow area of the side of spool perforate.
See Fig. 3-1, Fig. 3-2, spool 2 is a telescoping structure, and being provided with perforate in the side of sleeve is the fluid passage, and perforate can be provided with one or more, and the Flow area of each perforate is pressed binary system and arranged.
With a straight journey digital valve controlling mechanism by 8 hole parallel connections is example.If every orifice flow amount area is S
0, S
1, S
2, S
3, S
4, S
5, S
6, S
7Be respectively 2
0, 2
1, 2
2, 2
3, 2
4, 2
5, 2
6, 2
7, promptly ratio is 1,2,4,8,16,32,64,128 between the hole, because of straight journey modulating valve maximum caliber generally at Φ 300～Φ 350, therefore mostly be small-bore valve greatly.So become sleeve type proper spool design, the flow size can realize with the cartridges sides perforate like this, sees Fig. 2, i.e. n
1Flow is 2
0, then open a hole in cartridges sides; n
2Flow 2
1, 2 holes, n are opened in the side
3Flow 2
2, 4 holes are opened in the side, when big as if sleeve, directly get final product at the cartridges sides opening by the discharge area.Promptly make things convenient for processing also to improve the rigidity of valve rod.See Fig. 2, n
1, n
2, n
3, n
4, n
5, n
6, n
7Represent each spool respectively.
Because the spool of digital valve controlling mechanism has only two positions, i.e. standard-sized sheet or complete shut-down, as shown in Figure 3.So switch puts in place, flow is accurate, thereby has guaranteed the accuracy of flow, has also saved feedback means.
Its precision of controlling mechanism is determined that by hole count the many more precision of hole count are high more.As 8 holes, can reach 1/255=0.39%, 9 holes are that 1/511=1.96 ‰, 10 hole is that 1/1023=0.98 ‰, 10 hole probably can meet the demands in the industrial production at present fully.
It is step-type that the aperture of digital valve controlling mechanism is regulated, and working procedure is achieved like this: with 8 holes is example, and standard-sized sheet is 255, and complete shut-down is 0, only opens n
1Be 1/255, only open n
2Be 2/255, only open n
1, n
2, be 3/255 then, the rest may be inferred, and its aperture can realize by 1/255～255/255 various states.
Claims (2)
1, straight journey digital valve controlling mechanism comprises valve seat, spool, valve body, bonnet, valve rod, Gland, stuffing box packing, it is characterized in that, is provided with a plurality of spools on valve seat, and the fluid flow area of each spool is pressed binary system and arranged; By controlling the open and-shut mode of each spool, realize the adjusting of flow.
2, straight journey digital valve controlling mechanism according to claim 1 is characterized in that, described spool is a telescoping structure, and being provided with perforate in the side of sleeve is the fluid passage, and perforate is provided with one or more; The sectional area of each spool perforate is pressed binary system and is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920012768U CN201391622Y (en) | 2009-04-05 | 2009-04-05 | Linear-motion digital valve regulation mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920012768U CN201391622Y (en) | 2009-04-05 | 2009-04-05 | Linear-motion digital valve regulation mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201391622Y true CN201391622Y (en) | 2010-01-27 |
Family
ID=41598447
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920012768U Expired - Fee Related CN201391622Y (en) | 2009-04-05 | 2009-04-05 | Linear-motion digital valve regulation mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201391622Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103388693A (en) * | 2013-07-22 | 2013-11-13 | 中国航天科技集团公司第六研究院第十一研究所 | Multi-channel flow synchronization regulation device capable of preventing self-oscillation |
| DE102017129246A1 (en) | 2017-12-08 | 2019-06-13 | Samson Aktiengesellschaft | Control valve arrangement and method for actuating a control valve arrangement |
| CN110040117A (en) * | 2018-01-15 | 2019-07-23 | (株)盛昌汽车科技 | It is easy to carry out the vehicle-mounted brake booster negative pressure adjusting device of both air flow modulation |
-
2009
- 2009-04-05 CN CN200920012768U patent/CN201391622Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103388693A (en) * | 2013-07-22 | 2013-11-13 | 中国航天科技集团公司第六研究院第十一研究所 | Multi-channel flow synchronization regulation device capable of preventing self-oscillation |
| CN103388693B (en) * | 2013-07-22 | 2016-01-20 | 中国航天科技集团公司第六研究院第十一研究所 | One can prevent self oscillations multichannel flow synchronizing controls |
| DE102017129246A1 (en) | 2017-12-08 | 2019-06-13 | Samson Aktiengesellschaft | Control valve arrangement and method for actuating a control valve arrangement |
| US11391381B2 (en) | 2017-12-08 | 2022-07-19 | Samson Aktiengesellschaft | Control valve assembly and method for operating a control valve assembly |
| CN110040117A (en) * | 2018-01-15 | 2019-07-23 | (株)盛昌汽车科技 | It is easy to carry out the vehicle-mounted brake booster negative pressure adjusting device of both air flow modulation |
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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: 20100127 Termination date: 20110405 |