CN102829223A - Multistage adjusting constant flow valve - Google Patents
Multistage adjusting constant flow valve Download PDFInfo
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- CN102829223A CN102829223A CN2012103322690A CN201210332269A CN102829223A CN 102829223 A CN102829223 A CN 102829223A CN 2012103322690 A CN2012103322690 A CN 2012103322690A CN 201210332269 A CN201210332269 A CN 201210332269A CN 102829223 A CN102829223 A CN 102829223A
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- valve
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- throttle
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Abstract
The invention relates to a multistage adjusting constant flow valve which comprises a valve body, a valve seat, a valve core, a valve cover, a spring, a seal member and an installation piece. A seal face matched with the valve seat is arranged on the lower end face of the valve core. The multistage adjusting constant flow valve is mainly characterized in that a valve sleeve is installed between the outer circumference of the seal face of the valve seat and the lower end face of the valve cover; a through hole is arranged on the circumferential wall of the valve sleeve; the valve core is in a shaft type multistage throttling step structure; the outer circular face of the valve core is moveably matched with the inner circular face of the valve sleeve; a valve cylinder is arranged between the outer circular face of the valve sleeve and the cavity wall of the valve body; a throttling channel is formed between the valve cylinder and the valve sleeve; a channel communicated with a valve body outlet is formed between the throttling channel and the inner wall of the valve body; a sealing distance ring is arranged between the valve cylinder and the valve sleeve outside the lower end face of each stage of throttling step of the valve core; a through hole is arranged on the circumference of the valve cylinder on the upper side of the upmost stage of sealing distance ring; a pressure storage tank is connected on a channel between the valve cylinder and the inner wall of the valve body; and a pressure valve is connected with a rear cavity of the pressure storage tank. The multistage adjusting constant flow valve provided by the invention has the advantages of good constant water injection effect, wide range of adjusting pressure difference and the like, and is suitable for working conditions of water injection for an oil well.
Description
Technical field
The present invention relates to valve field, particularly about adjustable permanent-flow valve.The present invention is applicable to that oilfield etc. needs the production status of steady water filling.
Background technique
Existing permanent-flow valve changes circulation area through the piston of medium promotion lumen, reaches the purpose of regulating flow.Like the patent No. is 200920197520.0 permanent-flow valve, comprises valve body, valve gap; Sealing, constant current spool, constant current spring and dynamic seal; The constant current spool is located in the body cavity, and the constant current spring housing is on the constant current spool, and an end heads on valve gap; The other end heads on constant current spool base, and the outside of constant current spool base cooperates indent in the middle of the constant current spool base bottom with the body cavity sidewall is movable; Body cavity is divided into pressurized chamber and constant current control chamber, and the constant current spool is provided with vertical flow channel and lateral stream passage, when the water pipe intake pressure changes, can regulate the pipeline constant flow automatically.Its major defect is: only through once regulating, and built-in spring receives the impact of current, also is prone to the build-up of pressure fluctuation, the weak effect of constant current water filling, and adjustment pressure reduction is little.
Summary of the invention
The objective of the invention is shortcoming, a kind of multistage adjusting that has is provided, effective, the big multistage regulating type permanent-flow valve of adjustment pressure differential range of constant current water filling to the existing technology existence.
Technological scheme of the present invention comprises valve body, valve seat, spool, valve gap, spring, Sealing and assembling set, and the spool lower end surface has the sealing surface that cooperatively interacts with valve seat; Mainly be that a valve pocket is installed between sealing surface of seat outer circumference and valve gap lower end surface, be shaped on through hole on the valve pocket peripheral wall, spool is a shaft type multistage throttle ledge structure, and spool periphery and valve pocket inner headed face are movingly; Be provided with valve barrel between valve pocket periphery and the body cavity wall; Form throttling passage between this valve barrel and the valve pocket; With form the passage be communicated with valve outlet between the valve interior wall; Between the valve barrel in the outside, each grade throttling step lower end surface of spool and valve pocket, be provided with the sealing spacer ring, on the valve barrel circumference of upper level sealing spacer ring upside, be shaped on through hole; On the passage between valve barrel and the valve interior wall, be connected a pressure-stored tank, the back cavity of this pressure-stored tank connects an air pressure valve.
In above technological scheme, the upper end of spool is passed valve gap and is connected with spring seat, and spring is installed in spring seat and regulates between the nut, and spool cooperates with the bonnet central bore motive sealing.
In above technological scheme; Be provided with throttle valve in the inlet passage of valve body; This throttle valve is made up of throttle valve body and throttle valve lever, and the throttle valve body sealing and fixing is installed on the valve body, and thread seal is connected between throttle valve lever and the throttle valve body; Be shaped on cylindrical flap in the end of throttle valve lever, this cylindrical flap is positioned at the valve body inlet passage.
In above technological scheme, the through hole on the valve pocket lower circumference wall is T shape hole, and the through hole on the peripheral wall of top is a circular port.
Beneficial effect compared with prior art of the present invention is: adopt the spool of shaft type multistage throttle ledge structure and valve pocket, valve barrel to form the multistage throttle valve arrangement; And on the passage between valve barrel and the valve interior wall, be connected a pressure-stored tank, its constant current water filling effective, the adjustment pressure differential range is big.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Embodiment
Multistage regulating type permanent-flow valve as shown in Figure 1 comprises valve body 3, valve seat 4, spool 5, valve gap 12, spring 8, Sealing and assembling set, and spool 5 lower end surfaces have the sealing surface that cooperatively interacts with valve seat 4; One valve pocket 6 is installed between valve seat 4 sealing surface outer circumference and valve gap 12 lower end surfaces, is shaped on through hole on valve pocket 6 peripheral wall, spool 5 is a shaft type multistage throttle ledge structure, and spool 5 peripheries and valve pocket 6 inner headed faces are movingly; Be provided with valve barrel 7 between valve pocket 6 peripheries and valve body 3 internal chamber walls; Form throttling passage between this valve barrel 7 and the valve pocket 6; Export the passage that is communicated with formation between valve body 3 inwalls with valve body 3; Between valve barrel 7 outside each grade throttling step lower end surface of spool 5 and valve pocket 6, be provided with sealing spacer ring 13, on valve barrel 7 circumference of the top primary seal spacer ring 13 upsides, be shaped on through hole, when spool 5 and valve seat 4 are sealed and matched state; Align with the lower end surface of spool 5 steps in the last plane of sealing spacer ring 13; The import medium overcomes spring force and promotes spool 5 risings, and medium enters into the throttling passage between valve pocket 6 and the valve barrel 7 between the first order step of valve seat 4 and spool 5 through the through hole on valve pocket 6 peripheral wall, and the lower plane from sealing spacer ring 13 enters in the circular groove between spool 5 first order steps and the second step then; Enter in the throttling passage on plane on the sealing spacer ring 13 from the lower end surface of spool 5 second steps, form the multistage throttle valve arrangement.Medium gets into throttling passage topmost between the last plane of lower end surface and the sealing spacer ring 13 of one-level steps topmost from spool 5 at last, and exports through the inflow of the through hole on valve barrel 7 circumference valve body 3.The progression of spool 5 steps confirms that according to the size of medium differential pressure regulation range the pressure reduction regulation range is big more, and then the progression of spool 5 steps is many more; On the passage between valve barrel 7 and valve body 3 inwalls, be connected a pressure-stored tank 9; The back cavity of this pressure-stored tank 9 connects an air pressure valve 10, when valve body 3 outlet pressures are lower than setting pressure, and pressurising in the passage of pressure-stored tank 9 between valve barrel 7 and valve body 3 inwalls; Otherwise; When valve body 3 outlet pressures were higher than setting pressure, the medium between valve barrel 7 and valve body 3 inwalls in the passage played the effect of further stablizing valve body 3 outlet pressures to pressure-stored tank 9 pressurisings.
The upper end of spool 5 is passed valve gap 12 and is connected with spring seat, and spring 8 is installed in spring seat and regulates between the nut, and spool 5 cooperates with valve gap 12 center hole motive sealings.Regulate nut and be installed on the block 11, make spring 8 and media isolated, prevent that spring 8 is washed away by medium, improve the stability of valve body 3 outlet pressure mediums through screw-thread fit.
Be provided with throttle valve in the inlet passage of valve body 3; This throttle valve is made up of throttle valve body 1 and throttle valve lever 2; Throttle valve body 1 sealing and fixing is installed on the valve body 3; Thread seal is connected between throttle valve lever 2 and the throttle valve body 1, is shaped on cylindrical flap in the end of throttle valve lever 1, and this cylindrical flap is positioned at valve body 3 inlet passages.Can regulation valve body 3 inlet pressures through regulating throttle valve lever 1, make the pressure that gets into valve seat 4 places adjust to suitable scope.
Through hole on the valve pocket 6 lower circumference walls is T shape hole, and the through hole on the peripheral wall of top is a circular port.Realize multistage continuously adjusting flow rate.
Claims (4)
1. a multistage regulating type permanent-flow valve comprises valve body (3), valve seat (4), spool (5), valve gap (12), spring (8), Sealing and assembling set, and spool (5) lower end surface has the sealing surface that cooperatively interacts with valve seat 4; It is characterized in that a valve pocket (6) is installed between valve seat (4) sealing surface outer circumference and valve gap (12) lower end surface, be shaped on through hole on valve pocket (6) peripheral wall, spool (5) is a shaft type multistage throttle ledge structure, and spool (5) periphery and valve pocket (6) inner headed face are movingly; Be provided with valve barrel (7) between valve pocket (6) periphery and valve body (3) internal chamber wall; Constitute throttling passage between this valve barrel (7) and the valve pocket (6); Form between valve barrel (7) and valve body (3) inwall with valve body (3) and export the passage that is communicated with; Between valve barrel (7) outside each grade throttling step lower end surface of spool (5) and valve pocket (6), be provided with sealing spacer ring (13), on valve barrel (7) circumference of the top primary seal spacer ring (13) upside, be shaped on through hole; On the passage between valve barrel (7) and valve body (3) inwall, be connected a pressure-stored tank (9), the back cavity of this pressure-stored tank (9) connects an air pressure valve (10).
2. multistage regulating type permanent-flow valve according to claim 1, the upper end that it is characterized in that spool (5) is passed valve gap (12) and is connected with spring seat, and spring (8) is installed in spring seat and regulates between the nut, and spool (5) cooperates with valve gap (12) center hole motive sealing.
3. multistage regulating type permanent-flow valve according to claim 1 and 2; It is characterized in that being provided with throttle valve in the inlet passage of valve body (3); This throttle valve is made up of throttle valve body (1) and throttle valve lever (2), and throttle valve body (1) sealing and fixing is installed on the valve body (3), and thread seal is connected between throttle valve lever (2) and the throttle valve body (1); End at throttle valve lever (1) is shaped on cylindrical flap, and this cylindrical flap is positioned at valve body (3) inlet passage.
4. multistage regulating type permanent-flow valve according to claim 1 and 2 is characterized in that the through hole on valve pocket (6) the lower circumference wall is T shape hole, and the through hole on the peripheral wall of top is a circular port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103322690A CN102829223A (en) | 2012-09-08 | 2012-09-08 | Multistage adjusting constant flow valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103322690A CN102829223A (en) | 2012-09-08 | 2012-09-08 | Multistage adjusting constant flow valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102829223A true CN102829223A (en) | 2012-12-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012103322690A Pending CN102829223A (en) | 2012-09-08 | 2012-09-08 | Multistage adjusting constant flow valve |
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| Country | Link |
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| CN (1) | CN102829223A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114617453A (en) * | 2021-04-21 | 2022-06-14 | 九阳股份有限公司 | Food processing machine |
| WO2022134314A1 (en) * | 2020-12-23 | 2022-06-30 | 江苏科技大学 | Mechanical self-operated constant flow control combined device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2379671Y (en) * | 1999-06-01 | 2000-05-24 | 乐山市长江仪表厂 | Balancing and directly loading type safety valve |
| CN201236982Y (en) * | 2007-12-18 | 2009-05-13 | 浙江凯瑞特阀业有限公司 | Constant-current valve |
| CN102410388A (en) * | 2011-07-25 | 2012-04-11 | 浙江凯瑞特阀业有限公司 | Balance type multi-stage regulating valve |
| CN202790747U (en) * | 2012-09-08 | 2013-03-13 | 环球阀门集团有限公司 | Multi-stage regulating-type constant flow valve |
-
2012
- 2012-09-08 CN CN2012103322690A patent/CN102829223A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2379671Y (en) * | 1999-06-01 | 2000-05-24 | 乐山市长江仪表厂 | Balancing and directly loading type safety valve |
| CN201236982Y (en) * | 2007-12-18 | 2009-05-13 | 浙江凯瑞特阀业有限公司 | Constant-current valve |
| CN102410388A (en) * | 2011-07-25 | 2012-04-11 | 浙江凯瑞特阀业有限公司 | Balance type multi-stage regulating valve |
| CN202790747U (en) * | 2012-09-08 | 2013-03-13 | 环球阀门集团有限公司 | Multi-stage regulating-type constant flow valve |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022134314A1 (en) * | 2020-12-23 | 2022-06-30 | 江苏科技大学 | Mechanical self-operated constant flow control combined device |
| CN114617453A (en) * | 2021-04-21 | 2022-06-14 | 九阳股份有限公司 | Food processing machine |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121219 |