CN203809704U - Axial-flow guide type multi-stage pressure-reduction high-pressure angle valve - Google Patents
Axial-flow guide type multi-stage pressure-reduction high-pressure angle valve Download PDFInfo
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- CN203809704U CN203809704U CN201420227270.1U CN201420227270U CN203809704U CN 203809704 U CN203809704 U CN 203809704U CN 201420227270 U CN201420227270 U CN 201420227270U CN 203809704 U CN203809704 U CN 203809704U
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- valve
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- guide
- sleeve
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- 238000007789 sealing Methods 0.000 claims abstract description 10
- 239000007788 liquid Substances 0.000 claims abstract description 7
- 230000006837 decompression Effects 0.000 claims description 27
- 238000012856 packing Methods 0.000 claims description 7
- 230000007704 transition Effects 0.000 claims description 3
- 239000002245 particle Substances 0.000 abstract description 14
- 239000007787 solid Substances 0.000 abstract description 11
- 230000035515 penetration Effects 0.000 abstract 3
- 230000003628 erosive effect Effects 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 239000012530 fluid Substances 0.000 description 10
- 239000003818 cinder Substances 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 239000004575 stone Substances 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
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Abstract
The utility model relates to an axial-flow guide type multi-stage pressure-reduction high-pressure angle valve comprising a valve body and a valve trim mounted in the valve body. The axial-flow guide type multi-stage pressure-reduction high-pressure angle valve is characterized in that in the valve trim, an inlet passage is arranged in the side wall of a sleeve, a valve seat is arranged below the sleeve and is in close fit with the same, a valve spool is arranged in the sleeve, and the lower end of the valve spool is in close fit with the valve seat. A guide control chamber is arranged on the upper portion of the valve spool, and the center of the bottom of the guide control chamber is provided with a guide through hole communicated with a central hole of the valve seat. The lower end of a guide valve spool is disposed in the guide control chamber, a guide travel spring sleeves the lower end of the guide valve spool, and a sealing head of the lower end of the guide valve spool is in close fit with the rim of the upper end of the guide through hole. A penetration cover is mounted at the top of the valve spool, the portion below a step of the guide valve spool is sealed in the guide control chamber by the penetration cover and is provided with an axial stroke, and the penetration cover is provided with guide balance holes. By the axial-flow guide type multi-stage pressure reduction high-pressure angle valve, cavitation erosion of liquid containing solid particles is prevented, noise is reduced, use and balance adjustment is reliable, control accuracy is high, and service life of the valve is greatly prolonged.
Description
Technical field
The utility model relates to a kind of decompression high-pressure angle valve, specifically a kind of axial flow leading type multi-step pressure reduction high-pressure angle valve for high pressure, High Pressure Difference and the special research and development design of operating mode occasion that contains solid particle fluid.
Background technique
In prior art, conventional decompression high-pressure angle valve is single seat unbalanced type structure, while overcoming High Pressure Difference, need the actuator stem force of super large, and produce serious cavitation cavitation phenomenons and be greater than 100dBA noise under large pressure reduction operating mode, and cause that valve, pipeline and whole device vibrate, not only do not reach control object, and whole device operation security has been brought to serious consequence.In addition, the window runner design of existing decompression high-pressure angle valve is unreasonable, if contain the large particle solid particle such as stone, cinder in fluid, jam phenomenon easily occurs, and affects the normal operation of equipment.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, a kind of axial flow leading type multi-step pressure reduction high-pressure angle valve is provided, its structural design is ingenious rationally, can prevent that the liquid that contains solid particle from producing cavitation cavitation and reducing noise, use adjustment is reliable, control accuracy is high, can greatly improve the working life of valve under harsh operating mode, is specially adapted to accurately to control heavy caliber, High Pressure Difference and contains the harsh operating mode occasion of solid particle fluid.
The technological scheme providing according to the utility model: axial flow leading type multi-step pressure reduction high-pressure angle valve, comprise valve body and be installed on the trim in valve body, valve body is provided with valve inlet and valve outlet port, it is characterized in that: described trim comprises guide's spool, guide's stroke spring, spool, sleeve and valve seat, described sleeve lateral wall is provided with inlet passage, and described inlet passage is connected with valve inlet; Described valve seat is positioned at sleeve below, and valve seat upper-end surface and sleeve lower end surface are sealed and matched, and sleeve lower ending opening is connected with valve outlet port by valve base center hole; Described spool is loaded in sleeve, and spool lower end can coordinate with valve base sealing, and described inlet passage space by spool periphery in the time that spool lifts is connected with valve base center hole, and inlet passage does not communicate with valve base center hole is isolated in the time that spool falls; Described spool top is provided with pilot control chamber, and described pilot control chamber bottom centre is provided with first via, and described first via is communicated with valve base center hole; It is indoor that guide's spool lower end is placed in pilot control, guide's spool lower end is set with guide's stroke spring, guide's stroke spring upper end is connected with the step on guide's spool, top, guide's stroke spring lower end is pressed in bottom, pilot control chamber, guide's spool lower end is provided with sealing head, and sealing head can be sealed and matched with edge, first via upper end; Described transparent cover is arranged on spool top, and the following position of step on described guide's spool is enclosed in pilot control chamber and has axial stroke by transparent cover, and described transparent cover is provided with guide's equalizing orifice.
As further improvement of the utility model, described spool periphery wall is provided with at least one ring decompression groove, between adjacent annular decompressing groove, is separated by by the outer step that reduces pressure; Described sleeve lining is provided with the annular groove consistent with ring decompression groove quantity, between adjacent annular groove, is separated by by the interior step that reduces pressure; In the time that spool lifts, the high-pressure liquid entering from inlet passage is from up to down circulated step by step and is discharged from valve base center hole by ring decompression groove, annular groove successively; In the time that spool falls, inlet passage is not communicating with valve base center hole is isolated.
As further improvement of the utility model, the outer step of described decompression has part with the interior step of decompression and is overlapping in the time that spool falls.
As further improvement of the utility model, the quantity of the annular groove on quantity and the described sleeve lining of the ring decompression groove on described spool periphery wall is three roads.
As further improvement of the utility model, the shape of cross section of described ring decompression groove is that bottom corners place adopts the trapezoidal of arc transition.
As further improvement of the utility model, the shape of cross section of described annular groove is rectangle.
As further improvement of the utility model, described transparent cover is fixedly connected on spool top by screw.
As further improvement of the utility model, described sleeve lower end surface is provided with sealed groove, and described valve seat upper-end surface is provided with ring packing boss, described ring packing boss and described sealed groove tabling.
compared with prior art, tool has the following advantages the utility model:
(1) valve core structure of the present utility model is designed to guide's balanced type valve core structure, and it has reduced the requirement to actuator stem force, joins less actuator and just can realize tight seal under large pressure reduction operating mode; Can also reduce operational noise, reduce fluid scouring loss simultaneously.
(2) spool of the present utility model, tube-in-tube structure and their mode that is sealed and matched have formed axial flow multi-step pressure reduction structure on the one hand, use adjustment reliable, and control accuracy is high, is applicable to accurately control the operating mode occasion of heavy caliber, High Pressure Difference.Form on the other hand large window runner, can allow particle solid particle as large in stone, cinder etc. to flow by and there will not be jam phenomenon, prevent that the liquid that contains solid particle from producing cavitation cavitation and reducing noise, greatly improve the working life of valve under harsh operating mode, be specially adapted to accurately to control heavy caliber, High Pressure Difference and contain the harsh operating mode occasion of solid particle fluid.
(3) spool of the present utility model, tube-in-tube structure and their mode that is sealed and matched have formed large window runner on the other hand, can allow particle solid particle as large in stone, cinder etc. to flow by and there will not be jam phenomenon, prevent that the liquid that contains solid particle from producing cavitation cavitation and reducing noise, greatly improve the working life of valve under harsh operating mode, be applicable to the harsh operating mode occasion that contains solid particle fluid.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model embodiment trim.
Fig. 2 is the fluid current intelligence schematic diagram of the utility model embodiment trim.
Description of reference numerals: step, 15-valve seat, 16-valve base center hole, 17-sealed groove, 18-ring packing boss, 19-pilot control chamber in 1-guide's spool, 2-transparent cover, 3-guide's equalizing orifice, 4-step, 5-guide's stroke spring, 6-sealing head, 7-spool, 8-sleeve, 9-inlet passage, 10-ring decompression groove, the outer step of 11-decompression, the first via of 12-, 13-annular groove, 14-decompression.
Embodiment
Below in conjunction with concrete drawings and Examples, the utility model is described in further detail.
As shown in the figure: the axial flow leading type multi-step pressure reduction high-pressure angle valve in embodiment comprises valve body and is installed on the trim in valve body, valve body is provided with valve inlet and valve outlet port, described trim is mainly made up of guide's spool 1, guide's stroke spring 5, spool 7, sleeve 8 and valve seat 15, described sleeve 8 sidewalls are provided with inlet passage 9, and described inlet passage 9 is connected with valve inlet; Described valve seat 15 is positioned at sleeve 8 belows, and valve seat 15 upper-end surfaces and sleeve 8 lower end surfaces are sealed and matched, and sleeve 8 lower ending openings are connected with valve outlet port by valve base center hole 16; Described spool 7 is loaded in sleeve 8, spool 7 lower ends can be sealed and matched with valve seat 15, described inlet passage 9 space by spool 7 peripheries in the time that spool 7 lifts is connected with valve base center hole 16, and inlet passage 9 does not communicate with valve base center hole 16 is isolated in the time that spool 7 falls; Described spool 7 tops are provided with pilot control chamber 19, and described pilot control chamber 19 bottom centre are provided with first via 12, and described first via 12 is communicated with valve base center hole 16; Guide's spool 1 lower end is placed in pilot control chamber 19, guide's spool 1 lower end is set with guide's stroke spring 5, guide's stroke spring 5 upper ends are connected with the step 4 on guide's spool 1, guide's stroke spring 5 tops, lower end are pressed in 19 bottoms, pilot control chamber, guide's spool 1 lower end is provided with sealing head 6, and sealing 6 can be sealed and matched with first via 12 edges, upper end; Described transparent cover 2 is fixedly mounted on spool 7 tops by screw, and the following position of step 4 on described guide's spool 1 is enclosed in pilot control chamber 19 and has axial stroke by transparent cover 2, and described transparent cover 2 is provided with guide's equalizing orifice 3.
As shown in Figure 1 and Figure 2, in the utility model embodiment, described spool 7 periphery walls are provided with three road ring decompression grooves 10, between adjacent annular decompressing groove 10, are separated by by the outer step 11 that reduces pressure; Described sleeve 8 inwalls are provided with three road annular grooves 13, between adjacent annular groove 13, are separated by by the interior step 14 that reduces pressure; In the time that spool 7 lifts, the high-pressure liquid entering from inlet passage 9 is from up to down circulated step by step and is discharged from valve base center hole 16 by ring decompression groove 10, annular groove 13 successively; In the time that spool 7 falls, inlet passage 9 is not communicating with valve base center hole 16 is isolated.While falling in order to improve spool 7, close sealability, in the outer step 11 of described decompression and decompression, step 14 has part and is overlapping in the time that spool 7 falls.
As shown in Figure 1 and Figure 2, in the utility model embodiment, the shape of cross section of described ring decompression groove 10 is that bottom corners place adopts the trapezoidal of arc transition.The shape of cross section of described annular groove 13 is rectangle.Can either ensure like this effect of easing stress of the present utility model, be conducive to again improve the circulation smoothness of fluid in angle valve.
As shown in Figure 1 and Figure 2, described sleeve 8 lower end surfaces are provided with sealed groove 17, described valve seat 15 upper-end surfaces are provided with ring packing boss 18, and described ring packing boss 18 and described sealed groove 17 tablings, be conducive to improve the sealing between sleeve 8 and valve seat 15 like this.
When concrete application, in the time opening angle valve, actuator's band movable valve plug 7 lifts, and guide's spool 1 also moves up, the fluid entering from inlet passage 9 enters valve base center hole 16 flowing through successively three road ring decompression groove 10He tri-road annular grooves 13, realizes decompression step by step; Meanwhile, segment fluid flow enters spool 7 superjacent air spaces by first via 12, pilot control chamber 19 and guide's equalizing orifice 3, makes spool pressure at two ends balance Shang Xia 7, just can open rapidly valve as long as join so less actuator.
Claims (8)
1. axial flow leading type multi-step pressure reduction high-pressure angle valve, comprise valve body and be installed on the trim in valve body, valve body is provided with valve inlet and valve outlet port, it is characterized in that: described trim comprises guide's spool (1), guide's stroke spring (5), spool (7), sleeve (8) and valve seat (15), described sleeve (8) sidewall is provided with inlet passage (9), and described inlet passage (9) is connected with valve inlet; Described valve seat (15) is positioned at sleeve (8) below, and valve seat (15) upper-end surface and sleeve (8) lower end surface are sealed and matched, and sleeve (8) lower ending opening is connected with valve outlet port by valve base center hole (16); Described spool (7) is loaded in sleeve (8), spool (7) lower end can be sealed and matched with valve seat (15), described inlet passage (9) space by spool (7) periphery in the time that spool (7) lifts is connected with valve base center hole (16), and inlet passage (9) does not communicate with valve base center hole (16) is isolated in the time that spool (7) falls; Described spool (7) top is provided with pilot control chamber (19), and described pilot control chamber (19) bottom centre is provided with first via (12), and described first via (12) is communicated with valve base center hole (16); Guide's spool (1) lower end is placed in pilot control chamber (19), guide's spool (1) lower end is set with guide's stroke spring (5), guide's stroke spring (5) upper end is connected with the step (4) on guide's spool (1), top, guide's stroke spring (5) lower end is pressed in bottom, pilot control chamber (19), guide's spool (1) lower end is provided with sealing head (6), and sealing head (6) can be sealed and matched with first via (12) edge, upper end; Described transparent cover (2) is arranged on spool (7) top, and the following position of step (4) on described guide's spool (1) is enclosed in pilot control chamber (19) and has axial stroke by transparent cover (2), and described transparent cover (2) is provided with guide's equalizing orifice (3).
2. axial flow leading type multi-step pressure reduction high-pressure angle valve as claimed in claim 1, is characterized in that: described spool (7) periphery wall is provided with at least one ring decompression groove (10), between adjacent annular decompressing groove (10), is separated by by the outer step of decompression (11); Described sleeve (8) inwall is provided with the annular groove (13) consistent with ring decompression groove (10) quantity, between adjacent annular groove (13), is separated by by step (14) in decompression; In the time that spool (7) lifts, the high-pressure liquid entering from inlet passage (9) is from up to down circulated step by step and is discharged from valve base center hole (16) by ring decompression groove (10), annular groove (13) successively; In the time that spool (7) falls, inlet passage (9) is not communicating with valve base center hole (16) is isolated.
3. axial flow leading type multi-step pressure reduction high-pressure angle valve as claimed in claim 2, is characterized in that: the outer step (11) of described decompression has part with the interior step (14) of decompression and is overlapping in the time that spool (7) falls.
4. axial flow leading type multi-step pressure reduction high-pressure angle valve as claimed in claim 2, is characterized in that: the quantity of the annular groove (13) on the quantity of the ring decompression groove (10) on described spool (7) periphery wall and described sleeve (8) inwall is three roads.
5. axial flow leading type multi-step pressure reduction high-pressure angle valve as claimed in claim 2, is characterized in that: the shape of cross section of described ring decompression groove (10) is that bottom corners place adopts the trapezoidal of arc transition.
6. axial flow leading type multi-step pressure reduction high-pressure angle valve as claimed in claim 2, is characterized in that: the shape of cross section of described annular groove (13) is rectangle.
7. axial flow leading type multi-step pressure reduction high-pressure angle valve as claimed in claim 1, is characterized in that: described transparent cover (2) is fixedly connected on spool (7) top by screw.
8. axial flow leading type multi-step pressure reduction high-pressure angle valve as claimed in claim 1, it is characterized in that: described sleeve (8) lower end surface is provided with sealed groove (17), described valve seat (15) upper-end surface is provided with ring packing boss (18), described ring packing boss (18) and described sealed groove (17) tabling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420227270.1U CN203809704U (en) | 2014-05-05 | 2014-05-05 | Axial-flow guide type multi-stage pressure-reduction high-pressure angle valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420227270.1U CN203809704U (en) | 2014-05-05 | 2014-05-05 | Axial-flow guide type multi-stage pressure-reduction high-pressure angle valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203809704U true CN203809704U (en) | 2014-09-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420227270.1U Expired - Lifetime CN203809704U (en) | 2014-05-05 | 2014-05-05 | Axial-flow guide type multi-stage pressure-reduction high-pressure angle valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203809704U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107654689A (en) * | 2017-09-21 | 2018-02-02 | 永嘉县荣信科技有限公司 | A kind of ball valve |
| CN108150656A (en) * | 2018-02-12 | 2018-06-12 | 无锡智能自控工程股份有限公司 | Type pilot string data adjusts stop valve |
| CN109404606A (en) * | 2018-12-29 | 2019-03-01 | 吴忠仪表有限责任公司 | Pressure balance type high-precision high voltage difference control valve |
| CN111852998A (en) * | 2020-06-30 | 2020-10-30 | 江苏大学 | Cavitation suppression wing section device |
| CN112049941A (en) * | 2020-07-28 | 2020-12-08 | 北京航天动力研究所 | Pressure reducing regulating valve |
| US11566714B2 (en) | 2020-01-15 | 2023-01-31 | Flowserve Management Company | Fluid flow control devices and related systems and methods |
-
2014
- 2014-05-05 CN CN201420227270.1U patent/CN203809704U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107654689A (en) * | 2017-09-21 | 2018-02-02 | 永嘉县荣信科技有限公司 | A kind of ball valve |
| CN108150656A (en) * | 2018-02-12 | 2018-06-12 | 无锡智能自控工程股份有限公司 | Type pilot string data adjusts stop valve |
| CN109404606A (en) * | 2018-12-29 | 2019-03-01 | 吴忠仪表有限责任公司 | Pressure balance type high-precision high voltage difference control valve |
| US11566714B2 (en) | 2020-01-15 | 2023-01-31 | Flowserve Management Company | Fluid flow control devices and related systems and methods |
| CN111852998A (en) * | 2020-06-30 | 2020-10-30 | 江苏大学 | Cavitation suppression wing section device |
| CN112049941A (en) * | 2020-07-28 | 2020-12-08 | 北京航天动力研究所 | Pressure reducing regulating valve |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140903 |
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| CX01 | Expiry of patent term |