CN104358885A - High-pressure difference and high-flow rate adjustable ratio control valve - Google Patents
High-pressure difference and high-flow rate adjustable ratio control valve Download PDFInfo
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- CN104358885A CN104358885A CN201410614797.4A CN201410614797A CN104358885A CN 104358885 A CN104358885 A CN 104358885A CN 201410614797 A CN201410614797 A CN 201410614797A CN 104358885 A CN104358885 A CN 104358885A
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- pressure difference
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/36—Valve members
- F16K1/38—Valve members of conical shape
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
Abstract
The invention relates to a high-pressure difference and high-flow rate adjustable ratio control valve. A valve base is arranged in a valve cavity of a valve body; a valve core mounting hole is formed in the valve base; a valve cover is fixedly arranged on the top of the valve body in a sealing way; a sleeve is arranged in the valve cavity and is arranged above the valve base; a big valve core is moveably arranged in an inner hole of the sleeve and the valve core mounting hole of the valve base; the upper part of the big valve core is connected with a valve core sleeve; a valve rod penetrates through the valve cover; the lower end of the valve rod is connected with the big valve core; a valve core upper cavity and a valve core through hole are formed in the big valve core; the lower end of the valve rod penetrates through the valve core sleeve to be inserted into the valve core upper cavity and the valve core through hole; a driving sheet is arranged on the part, positioned in the valve core upper cavity, of the valve rod; a small valve core integrated with the valve rod is connected to the lower end of the valve rod and is arranged in the valve core through hole. The ratio control valve is characterized in that two or more threaded flowing passages with different start points are arranged on the small valve core and are provided with a plurality of cross points. The ratio control valve is novel in structure and can resist high temperature and high pressure difference, wide-range flow control can also be realized, and an adjustment curve is good.
Description
Technical field
The present invention relates to a kind of High Pressure Difference high-flow adjustable ratio control valve, belong to valve manufacturing technical field.
Background technique
Along with the raising day by day of industrial automation level, the flow control of wide range has become a kind of development trend.And the working environment of control valve is also more and more severe now, sometimes control valve needs to use under the harsh operating modes such as High Pressure Difference, high temperature, large regulating ratio.But the control valve ubiquity of at present domestic production can not high temperature resistant, High Pressure Difference, and can not realize wide range flow control, the shortcomings such as adjustment curve difference, mostly the control valve used under the harsh operating modes such as High Pressure Difference, high temperature, large regulating ratio is to depend on import.
For the occasion of above harsh operating mode, particularly boiler feed water application, applying unit and designing institute generally all adopt inlet control valve, on the one hand because there is the adjustment requirement of High Temperature High Pressure, the wide range flow control especially large regulating ratio of High Pressure Difference; On the other hand because position is important, product performance require high.Even if but external valve producer does not have the valve of new structure can meet the requirement of High Pressure Difference, the large regulating ratio of flow yet simultaneously, pure large regulating ratio can not meet High Pressure Difference requirement on the one hand; Select high pressure difference limen can not realize wide range flow control again on the other hand, so domestic applying unit generally all selects import high-pressure multistage step-down formula telescoping valve comparatively reliably, but this valve is very poor for wide flow control, substantially cannot regulate within the scope of small flow.Or select external needle-valve, but this valve is short for working life for High Pressure Difference, need often to change spool with satisfied adjustment requirement, this just means necessary standing spool, considerably increases user cost, and also extreme influence production line normally runs simultaneously.Also there is employing two deck valve jointly to use, realize Staged cotrol principle, or step-down adjustment, both waste great amount of cost like this, control again the complicated demand for development being difficult to adapt to new process.Even if imported product, also there will be working life short, noise is large, the problems such as regulation range is limited, so domestic a lot of applying unit has and strong is desirably in the domestic product that can buy substituting import one.
In order to break the monopoly position of overseas enterprise, also in order to improve the domestic technique level of this occasion lower valve, simultaneously also for my company enters rapidly this high-end field, my company, through creationary design, have developed the large adjustable control valve of a kind of High Pressure Difference flow, unborn problem is thoroughly eliminated, fundamentally solve the usage requirement of large regulating ratio high differential pressure control valve, both meet above working condition requirement, again reduced complete machine cost, also extend the working life of valve simultaneously.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of High Pressure Difference high-flow adjustable ratio control valve is provided, it can meet onsite application requirement well by novel structural design, can high temperature resistant, High Pressure Difference, wide range flow control can be realized again, and adjustment curve is good, instead of import completely.
According to technological scheme provided by the invention: High Pressure Difference high-flow adjustable ratio control valve, comprise valve body, valve gap, valve rod, valve seat, sleeve, big valve core and valve core housing, valve pocket is provided with in described valve body, valve seat is contained in valve pocket, valve seat is supported by the step in valve body valve pocket, the contact position of valve seat and valve body is in being tightly connected, and valve seat is provided with spool mounting hole, and described valve gap fixing seal is arranged on body top; Described sleeve to be contained in valve pocket and to be placed in above valve seat, and offset bottom sleeve top and valve gap, sleeve bottom and valve seat top offset, and sleeve perisporium is evenly provided with several through holes; Described big valve core activity is assemblied in the endoporus of sleeve and the spool mounting hole of valve seat, big valve core top connection valve core retainer plate, the periphery wall of valve core housing and the inner hole wall of sleeve seal and are slidably matched, and the spool mounting hole inner wall sealing of big valve core bottom outer wall and valve seat is slidably matched; Described valve rod is through valve gap, and utilize sealing configuration to seal between valve rod and valve gap, valve rod lower end is connected with big valve core, and on valve rod, cover has the holddown spring in compressive state, and holddown spring upper end is connected with valve gap, and holddown spring lower end is pressed on valve core housing; Described valve body is provided with medium inlet and media outlet, and media outlet is communicated with valve seat mounting hole lower end, and medium inlet is communicated with sleeve space outerpace with valve seat; Be provided with spool epicoele and valve core through hole in described big valve core, spool epicoele and valve core through hole are interconnected and axial through big valve core; Described valve rod lower end is inserted in spool epicoele and valve core through hole through valve core housing, and the part that valve rod is positioned at spool epicoele is provided with driving plate, and described driving plate periphery wall and spool epicoele inner wall sealing are slidably matched; Described valve rod lower end is connected with the small valve core be wholely set with it, and described small valve core is contained in valve core through hole, and small valve core periphery wall and valve core through hole inner wall sealing are slidably matched; It is characterized in that: described small valve core is provided with two or more the screw thread runner with different starting point, and many described screw thread runners have multiple point of intersection.
As a further improvement on the present invention, the pitch of many described screw thread runners is identical.
As a further improvement on the present invention, the bottom of described big valve core is provided with spool cavity of resorption, and the internal diameter of described spool cavity of resorption is greater than the internal diameter of valve core through hole, uniformly on the perisporium of spool cavity of resorption is provided with multiple through hole.
As a further improvement on the present invention, described valve cup bottom end face is provided with valve base sealing annular groove, in valve base sealing annular groove, be provided with valve washer; Described valve gap bottom end is provided with valve bonnet seal annular groove, is provided with valve gap packing ring in valve bonnet seal annular groove.
As a further improvement on the present invention, described valve washer and valve gap packing ring all adopt winding packing ring.
As a further improvement on the present invention, described valve gap is provided with the upper locating slot matched with holddown spring diameter dimension with the position of holddown spring tip contact, described holddown spring bottom embeds in upper locating slot; Described valve core housing top is provided with the positioning ring groove matched with holddown spring diameter dimension, and described holddown spring bottom embeds in positioning ring groove.
As a further improvement on the present invention, described valve core housing coordinates with being threaded connection between big valve core, and the position of valve core housing can turn adjustment.
As a further improvement on the present invention, described sealing configuration comprises matrix liner, filler, filler pressing sleeve and Gland, stem outer circumference in described valve gap is provided with filler, matrix liner is provided with below filler, filler pressing sleeve is provided with above filler, filler pressing sleeve is pushed down by the Gland of side disposed thereon, and described Gland is fixedly connected with by the second fastening connection piece with between valve gap.
As a further improvement on the present invention, described second fastening connection piece comprises the second stud, the second hexagon nut and belleville spring, described second stud lower end is connected on gland, and the second stud upper end is set with belleville spring after passing Gland and spiral shell fills the second hexagon nut.
As a further improvement on the present invention, described filler pressing sleeve inwall is provided with inner seal ring groove, and inner seal ring groove is built with an O RunddichtringO; Described filler pressing sleeve outer wall is provided with external sealed annular groove, and external sealed annular groove is built with the 2nd O RunddichtringO.
compared with prior art, tool has the following advantages in the present invention:
(1) small valve core of the present invention has the unique design of many screw thread runners, many screw thread runner has point of intersection as much as possible, now just can think in each point of intersection, it is exactly the place that fluid-phase knock against each other hits, often clash into a fluid energy will loss once, the number of times of shock is more, so pressure drop more of fluid, add big valve core and sleeve is all designed to multi-step pressure reduction structure, just all can realize resisting High Pressure Difference in total travel.
(2) the present invention can realize wide range flow control under the large regulating ratio of flow, when flow is little, pressure reduction is large, resist High Pressure Difference by the structural design of small valve core, angle and the degree of depth of many screw thread runners on small valve core can design arbitrarily, to meet minimum discharge requirement.When small valve core upwardly opens, big valve core, due to the pressure of spring and medium, meets zero leakage requirement, therefore can not affect small flow and regulate; When small valve core is all opened, big valve core and holddown spring is then driven upwards to run, now big valve core and sleeve play regulatory role, and big valve core and sleeve all have multiple through hole, and the number of through hole and diameter and distribution situation can design arbitrarily to meet the traffic requirement under different situations.
(3) use of described preloading spring ensure that the pretension specific pressure under big valve core in off position, and the flow direction that the end goes out is entered when ensure that small valve core regulates in side, and big valve core is in strict closed condition.
(4) a large amount of component in control valve of the present invention can use existing mill run, cheap for manufacturing cost.
Accompanying drawing explanation
Fig. 1 is the overall structure figure of embodiment of the present invention High Pressure Difference high-flow adjustable ratio control valve.
Fig. 2 is the perspective view of small valve core in Fig. 1.
Fig. 3 is the A portion enlarged diagram in Fig. 1.
Fig. 4 is the structural representation of big valve core in Fig. 1.
Fig. 5 is the circumference expanding map at the spool cavity of resorption position of Fig. 4 bottom.
Fig. 6 is the structural representation of Fig. 1 middle sleeve.
Fig. 7 is circumference expanding map sleeve having through hole position.
Description of reference numerals: 1-valve body, 1a-medium inlet, 1b-media outlet, 2-valve gap, 3-small valve core, 3a-screw thread runner, 4-big valve core, 4a-spool epicoele, 4b-valve core through hole, 4c-spool cavity of resorption, 5-valve seat, 5a-spool mounting hole, 6-sleeve, 7-holddown spring, 8-valve rod, 8a-driving plate, 9-first hexagon nut, 10-first stud, 11-matrix liner, 12-filler, 13-filler pressing sleeve, 14-Gland, 15-second stud, 16-belleville spring, 17-second hexagon nut, 18-the one O RunddichtringO, 19-the 2nd O RunddichtringO, 20-valve gap packing ring, 21-valve core housing, 22-valve washer.
Embodiment
Below in conjunction with concrete drawings and Examples, the invention will be further described.
As shown in the figure: the High Pressure Difference high-flow adjustable ratio control valve in embodiment is primarily of valve body 1, valve gap 2, small valve core 3, big valve core 4, valve seat 5, sleeve 6, holddown spring 7, valve rod 8, first hexagon nut 9, first stud 10, matrix liner 11, filler 12, filler pressing sleeve 13, Gland 14, second stud 15, belleville spring 16, second hexagon nut 17, one O RunddichtringO 18, 2nd O RunddichtringO 19, valve gap packing ring 20, the compositions such as valve core housing 21 and valve washer 22.
As shown in Fig. 1 ~ Fig. 3, be provided with valve pocket in described valve body 1, valve seat 5 is contained in valve pocket, valve seat 5 is supported by the step in valve body 1 valve pocket, the contact position of valve seat 5 and valve body 1 is in being tightly connected, and valve seat 5 is provided with spool mounting hole 5a, and described valve gap 2 fixing seal is arranged on valve body 1 top; Described sleeve 6 to be contained in valve pocket and to be placed in above valve seat 5, offsets, offset, sleeve 6 perisporium is evenly provided with several through holes bottom sleeve 6 with valve seat 5 top bottom sleeve 6 top and valve gap 2; The activity of described big valve core 4 is assemblied in the endoporus of sleeve 6 and the spool mounting hole 5a of valve seat 5, big valve core 4 top connection valve core retainer plate 21, the periphery wall of valve core housing 21 and the inner hole wall of sleeve 6 seal and are slidably matched, and the spool mounting hole 5a inner wall sealing of big valve core 4 bottom outer wall and valve seat 5 is slidably matched; Described valve rod 8 is through valve gap 2, utilize sealing configuration to seal between valve rod 8 and valve gap 2, valve rod 8 lower end is connected with big valve core 4, and on valve rod 8, cover has the holddown spring 7 in compressive state, holddown spring 7 upper end is connected with valve gap 2, and holddown spring 7 lower end is pressed on valve core housing 21; Described valve body 1 is provided with medium inlet 1a and media outlet 1b, and media outlet 1b is communicated with valve seat mounting hole 5a lower end, and medium inlet 1a is communicated with sleeve 6 space outerpace with valve seat 5; Be provided with spool epicoele 4a and valve core through hole 4b in described big valve core 4, spool epicoele 4a and valve core through hole 4b is interconnected and axial through big valve core 4; Described valve rod 8 lower end is inserted in spool epicoele 4a and valve core through hole 4b through valve core housing 21, and the part that valve rod 8 is positioned at spool epicoele 4a is provided with driving plate 8a, and described driving plate 8a periphery wall and spool epicoele 4a inner wall sealing are slidably matched; Described valve rod 8 lower end is connected with the small valve core 3 be wholely set with it, and described small valve core 3 is contained in valve core through hole 4b, and small valve core 3 periphery wall and valve core through hole 4b inner wall sealing are slidably matched; Described small valve core 3 is provided with two or more the screw thread runner 3a with different starting point, and many described screw thread runner 3a have multiple point of intersection.
As shown in Fig. 1,3,6,7, in the present invention, it is identical that many described screw thread runner 3a are preferably designed to pitch.The bottom of described big valve core 4 is provided with spool cavity of resorption 4c, and the internal diameter of described spool cavity of resorption 4c is greater than the internal diameter of valve core through hole 4b, uniformly on the perisporium of spool cavity of resorption 4c is provided with multiple through hole.
As shown in Figure 1, described valve gap 2 with between valve body 1 by being fixedly connected with by the fastening connection piece of the first stud 10 with the first hexagon nut 9, first stud 10 lower end is threaded on valve body 1, and the first stud 10 upper end fills the first hexagon nut 9 through spiral shell after valve gap 2.
As shown in Figure 1,3, described valve seat 5 bottom end is provided with valve base sealing annular groove, is provided with valve washer 22 in valve base sealing annular groove; Described valve gap 2 bottom end is provided with valve bonnet seal annular groove, is provided with valve gap packing ring 20 in valve bonnet seal annular groove; Valve seat 5 can be ensured like this, between valve gap 2 and valve body 1, there is more excellent sealability.Described valve washer 22 and valve gap packing ring 20 preferably adopt and are wound around packing ring.
As shown in Figure 1, in the present invention, described valve gap 2 is provided with the upper locating slot matched with holddown spring 7 diameter dimension with the position of holddown spring 7 tip contact, described holddown spring 7 bottom embeds in upper locating slot; Described valve core housing 21 top is provided with the positioning ring groove matched with holddown spring 7 diameter dimension, and described holddown spring 7 bottom embeds in positioning ring groove.Holddown spring 7 position stability can be made like this, thus stability when improving control valve work.
As shown in Figure 1, Figure 3, in the present invention, described valve core housing 21 coordinates with being threaded connection between big valve core 4, and the position of valve core housing 21 can turn adjustment.Be conducive to the stroke regulating big valve core 4 according to actual service condition like this, widen Applicable scope of the present invention.
As shown in Figure 1, Figure 3, in the present invention, described sealing configuration forms primarily of matrix liner 11, filler 12, filler pressing sleeve 13 and Gland 14, valve rod 8 periphery in described valve gap 2 is provided with filler 12, matrix liner 11 is provided with below filler 12, be provided with filler pressing sleeve 13 above filler 12, filler pressing sleeve 13 is pushed down by the Gland 14 of side disposed thereon, and described Gland 14 is fixedly connected with by the second fastening connection piece with between valve gap 2.Described second fastening connection piece forms primarily of the second stud 15, second hexagon nut 17 and belleville spring 16, described second stud 15 lower end is connected on gland, and the second stud 15 upper end is through suit belleville spring 16 after Gland 14 and spiral shell fills the second hexagon nut 17.
As shown in Figure 1, in the present invention, described filler pressing sleeve 13 inwall is provided with inner seal ring groove, and inner seal ring groove is built with an O RunddichtringO 18; Described filler pressing sleeve 13 outer wall is provided with external sealed annular groove, and external sealed annular groove is built with the 2nd O RunddichtringO 19.A described O RunddichtringO 18 is for improving the sealing between filler pressing sleeve 13 and valve rod 8, and described 2nd O RunddichtringO 19 is for improving the sealing between filler pressing sleeve 13 and valve gap 2.
Working principle of the present invention and working procedure as follows:
During embody rule, medium flows into from medium inlet 1a, first through sleeve 6, again through big valve core 4, eventually pass many screw thread runner 3a on small valve core 3, can find out more intuitively from figure, owing to small valve core 3 having the particular design of many screw thread runner 3a, when in small flow situation, sleeve 6 is far longer than small valve core 3 with the negotiability of big valve core 4, but medium, can change flow direction generation turning through sleeve 6 and big valve core 4, just there will be energy loss, can play good decompression.If do not have sleeve 6 and big valve core 4, medium directly will wash away the screw thread runner 3a on small valve core 3, and noise can be very large on the one hand, and the screw thread runner 3a on the other hand on small valve core 3 is not long for working life.When screw thread runner 3a on small valve core 3 has medium to circulate, medium can produce shock in the point of intersection of two screw thread runner 3a, the more number of corners in point of intersection are more, more multi-energy loss is larger for the number of times clashed into, so sleeve 6, big valve core 4 and small valve core 3 can resist most pressure drop, greatly realize opposing High Pressure Difference.
As can be seen from Figure 2, the screw thread runner 3a in the present invention on small valve core 3 can design angles different arbitrarily, the degree of depth and different strokes, realizes minimum discharge requirement.As can be seen from Fig. 1 and Fig. 3, when small valve core 3 upwardly opens, big valve core 4, owing to being subject to the pressure of holddown spring 7 and medium, can meet zero leakage requirement, therefore can not affect small flow and regulate; When small valve core 3 is all opened, holddown spring 7 is then driven upwards to run, now big valve core 4 and sleeve 6 play regulatory role, big valve core 4 and sleeve 6 all there is multiple through hole [as Suo Shi Fig. 4 ~ Fig. 7], and the number of through hole and diameter and distribution situation can design arbitrarily, to meet the traffic requirement under different situations.Visible, adjustable under big valve core 4 and sleeve 6 can realize large discharge, small valve core 3 is adjustable under can realizing small flow, and after comprehensive, flow adjustment range is wide, realizes the equal flow of size adjustable.
Claims (10)
1. High Pressure Difference high-flow adjustable ratio control valve, comprise valve body (1), valve gap (2), valve rod (8), valve seat (5), sleeve (6), big valve core (4) and valve core housing (21), described valve body is provided with valve pocket in (1), valve seat (5) is contained in valve pocket, valve seat (5) is supported by the step in valve body (1) valve pocket, the contact position of valve seat (5) and valve body (1) is in being tightly connected, valve seat (5) is provided with spool mounting hole (5a), and described valve gap (2) fixing seal is arranged on valve body (1) top; Described sleeve (6) to be contained in valve pocket and to be placed in valve seat (5) top, and sleeve (6) top offsets with valve gap (2) bottom, and sleeve (6) bottom and valve seat (5) top offset, and sleeve (6) perisporium is evenly provided with several through holes; Described big valve core (4) activity is assemblied in the endoporus of sleeve (6) and the spool mounting hole (5a) of valve seat (5), big valve core (4) top connection valve core retainer plate (21), the periphery wall of valve core housing (21) and the inner hole wall of sleeve (6) seal and are slidably matched, and spool mounting hole (5a) inner wall sealing of big valve core (4) bottom outer wall and valve seat (5) is slidably matched; Described valve rod (8) is through valve gap (2), sealing configuration is utilized to seal between valve rod (8) and valve gap (2), valve rod (8) lower end is connected with big valve core (4), the upper cover of valve rod (8) has the holddown spring (7) in compressive state, holddown spring (7) upper end is connected with valve gap (2), and holddown spring (7) lower end is pressed on valve core housing (21); Described valve body (1) is provided with medium inlet (1a) and media outlet (1b), and media outlet (1b) is communicated with valve seat mounting hole (5a) lower end, and medium inlet (1a) is communicated with sleeve (6) space outerpace with valve seat (5); Be provided with spool epicoele (4a) and valve core through hole (4b) in described big valve core (4), spool epicoele (4a) and valve core through hole (4b) are interconnected and axial through big valve core (4); Described valve rod (8) lower end is inserted in spool epicoele (4a) and valve core through hole (4b) through valve core housing (21), the part that valve rod (8) is positioned at spool epicoele (4a) is provided with driving plate (8a), and described driving plate (8a) periphery wall and spool epicoele (4a) inner wall sealing are slidably matched; Described valve rod (8) lower end is connected with the small valve core (3) be wholely set with it, and described small valve core (3) is contained in valve core through hole (4b), and small valve core (3) periphery wall and valve core through hole (4b) inner wall sealing are slidably matched; It is characterized in that: described small valve core (3) is provided with two or more the screw thread runner (3a) with different starting point, and many described screw thread runners (3a) have multiple point of intersection.
2. High Pressure Difference high-flow adjustable ratio control valve as claimed in claim 1, is characterized in that: the pitch of many described screw thread runners (3a) is identical.
3. High Pressure Difference high-flow adjustable ratio control valve as claimed in claim 1, it is characterized in that: the bottom of described big valve core (4) is provided with spool cavity of resorption (4c), the internal diameter of described spool cavity of resorption (4c) is greater than the internal diameter of valve core through hole (4b), uniformly on the perisporium of spool cavity of resorption (4c) is provided with multiple through hole.
4. High Pressure Difference high-flow adjustable ratio control valve as claimed in claim 1, is characterized in that: described valve seat (5) bottom end is provided with valve base sealing annular groove, is provided with valve washer (22) in valve base sealing annular groove; Described valve gap (2) bottom end is provided with valve bonnet seal annular groove, is provided with valve gap packing ring (20) in valve bonnet seal annular groove.
5. High Pressure Difference high-flow adjustable ratio control valve as claimed in claim 4, is characterized in that: described valve washer (22) and valve gap packing ring (20) all adopt and be wound around packing ring.
6. High Pressure Difference high-flow adjustable ratio control valve as claimed in claim 1, it is characterized in that: described valve gap (2) position that is upper and holddown spring (7) tip contact is provided with the upper locating slot matched with holddown spring (7) diameter dimension, and described holddown spring (7) bottom embeds in upper locating slot; Described valve core housing (21) top is provided with the positioning ring groove matched with holddown spring (7) diameter dimension, and described holddown spring (7) bottom embeds in positioning ring groove.
7. High Pressure Difference high-flow adjustable ratio control valve as claimed in claim 1, is characterized in that: be threaded connection between described valve core housing (21) with big valve core (4) and coordinate, and the position of valve core housing (21) can turn adjustment.
8. High Pressure Difference high-flow adjustable ratio control valve as claimed in claim 1, it is characterized in that: described sealing configuration comprises matrix liner (11), filler (12), filler pressing sleeve (13) and Gland (14), valve rod (8) periphery in described valve gap (2) is provided with filler (12), filler (12) below is provided with matrix liner (11), filler (12) top is provided with filler pressing sleeve (13), filler pressing sleeve (13) is pushed down by the Gland (14) of side disposed thereon, be fixedly connected with by the second fastening connection piece between described Gland (14) with valve gap (2).
9. High Pressure Difference high-flow adjustable ratio control valve as claimed in claim 8, it is characterized in that: described second fastening connection piece comprises the second stud (15), the second hexagon nut (17) and belleville spring (16), described second stud (15) lower end is connected on gland, and the second stud (15) upper end is set with belleville spring (16) afterwards through Gland (14) and spiral shell fills the second hexagon nut (17).
10. High Pressure Difference high-flow adjustable ratio control valve as claimed in claim 8, it is characterized in that: described filler pressing sleeve (13) inwall is provided with inner seal ring groove, inner seal ring groove is built with an O RunddichtringO (18); Described filler pressing sleeve (13) outer wall is provided with external sealed annular groove, and external sealed annular groove is built with the 2nd O RunddichtringO (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410614797.4A CN104358885B (en) | 2014-11-04 | 2014-11-04 | High-pressure difference and high-flow rate adjustable ratio control valve |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410614797.4A CN104358885B (en) | 2014-11-04 | 2014-11-04 | High-pressure difference and high-flow rate adjustable ratio control valve |
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| CN104358885A true CN104358885A (en) | 2015-02-18 |
| CN104358885B CN104358885B (en) | 2017-01-25 |
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| CN201410614797.4A Active CN104358885B (en) | 2014-11-04 | 2014-11-04 | High-pressure difference and high-flow rate adjustable ratio control valve |
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Cited By (9)
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| CN105134984A (en) * | 2015-10-16 | 2015-12-09 | 吴忠仪表有限责任公司 | Low-flow-rate high-differential-pressure double-helix pressure reduction control valve |
| CN105909803A (en) * | 2016-04-21 | 2016-08-31 | 杭州艾诺流体控制仪表有限公司 | Tapered thread type micro-flow regulating valve |
| CN108317298A (en) * | 2018-03-04 | 2018-07-24 | 江苏江进泵业有限公司 | Low leakage pilot-operated type single-seat adjusting valve spool |
| CN108426075A (en) * | 2018-03-21 | 2018-08-21 | 江苏大学 | A kind of big regulating ratio High Pressure Difference sleeve adjusting valve |
| CN109654242A (en) * | 2019-02-19 | 2019-04-19 | 成都乘风阀门有限责任公司 | High-pressure angle type throttle valve |
| CN110220044A (en) * | 2019-06-24 | 2019-09-10 | 吴忠仪表工程技术服务有限公司 | Double rotational directions multispiral staggered form valve core structure |
| CN113357378A (en) * | 2021-06-01 | 2021-09-07 | 陕钢集团汉中钢铁有限责任公司 | High-temperature-resistant gas one-way valve |
| CN113738948A (en) * | 2021-08-25 | 2021-12-03 | 浙江大学 | Valve core structure capable of realizing large adjustable ratio and high adjustment precision, adjusting valve and method |
| CN114263754A (en) * | 2021-12-20 | 2022-04-01 | 无锡卓尔阀业有限公司 | Flow regulation structure and double-helix conical sealing pressure reduction regulating valve with same |
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| CN105134984A (en) * | 2015-10-16 | 2015-12-09 | 吴忠仪表有限责任公司 | Low-flow-rate high-differential-pressure double-helix pressure reduction control valve |
| CN105909803A (en) * | 2016-04-21 | 2016-08-31 | 杭州艾诺流体控制仪表有限公司 | Tapered thread type micro-flow regulating valve |
| CN108317298A (en) * | 2018-03-04 | 2018-07-24 | 江苏江进泵业有限公司 | Low leakage pilot-operated type single-seat adjusting valve spool |
| CN108426075A (en) * | 2018-03-21 | 2018-08-21 | 江苏大学 | A kind of big regulating ratio High Pressure Difference sleeve adjusting valve |
| CN109654242A (en) * | 2019-02-19 | 2019-04-19 | 成都乘风阀门有限责任公司 | High-pressure angle type throttle valve |
| CN110220044A (en) * | 2019-06-24 | 2019-09-10 | 吴忠仪表工程技术服务有限公司 | Double rotational directions multispiral staggered form valve core structure |
| CN113357378A (en) * | 2021-06-01 | 2021-09-07 | 陕钢集团汉中钢铁有限责任公司 | High-temperature-resistant gas one-way valve |
| CN113357378B (en) * | 2021-06-01 | 2023-06-20 | 陕钢集团汉中钢铁有限责任公司 | High-temperature-resistant gas one-way valve |
| CN113738948A (en) * | 2021-08-25 | 2021-12-03 | 浙江大学 | Valve core structure capable of realizing large adjustable ratio and high adjustment precision, adjusting valve and method |
| CN114263754A (en) * | 2021-12-20 | 2022-04-01 | 无锡卓尔阀业有限公司 | Flow regulation structure and double-helix conical sealing pressure reduction regulating valve with same |
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Denomination of invention: High pressure differential flow large adjustable ratio control valve Effective date of registration: 20220429 Granted publication date: 20170125 Pledgee: Jiangsu SINOSURE technology microfinance Co.,Ltd. Pledgor: WUXI YADI FLUID CONTROL TECHNOLOGY Co.,Ltd. Registration number: Y2022320000199 |
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