CN208252810U - A kind of cam flexure regulating valve suitable for High Pressure Difference operating condition containing solid particle - Google Patents
A kind of cam flexure regulating valve suitable for High Pressure Difference operating condition containing solid particle Download PDFInfo
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- CN208252810U CN208252810U CN201820715393.8U CN201820715393U CN208252810U CN 208252810 U CN208252810 U CN 208252810U CN 201820715393 U CN201820715393 U CN 201820715393U CN 208252810 U CN208252810 U CN 208252810U
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Abstract
The utility model belongs to valve technology field, and in particular to a kind of cam flexure regulating valve suitable for High Pressure Difference operating condition containing solid particle.Cam flexure regulating valve regulating valve provided by the utility model suitable for High Pressure Difference operating condition containing solid particle includes: valve body, core assembly, valve seat, valve rod, guide post, upper guide sleeve, lower guide sleeve and pressing ring nut；Under its operating condition that can contain a large amount of solid particles in High Pressure Difference, especially medium, long-period stable operation.
Description
Technical field
The utility model belongs to valve technology field, and in particular to a kind of suitable for the convex of High Pressure Difference operating condition containing solid particle
Wheel flexure regulating valve.
Background technique
It mainly includes valve body, spool, valve seat, valve rod etc. that cam, which bends regulating valve, and spool couples with valve rod, is passed by valve rod
Torque delivery drives valve core rotation, to complete closing and opening of the spool to valve seat.Cam flexure regulating valve absorbs ball valve and butterfly
The certain advantages of valve, have that structure is simple, also can a system such as steady operation, use temperature range be wide under sealed reliable, small guide vane
Column advantage, big, slurry and granule medium adjusting and cutting especially suitable for viscosity, be widely used in petroleum, chemical industry, metallurgy,
In the industrial productions such as coal chemical industry.
Existing cam flexure regulating valve has preferable performance under low voltage difference operating condition, but in High Pressure Difference, contain solid particle
There are a series of problems under operating condition, specific as follows:
1) spool is limited to the selection of material, and under High Pressure Difference, operating condition containing solid particle, spool spherical crown is tighter by erosion
Weight.
2) one-part form valve rod occupies flow channel space, causes flow resistance larger, while washing away also spool than more serious.
3) valve seat water passage surface is washed away seriously under High Pressure Difference, operating condition containing solid particle, washes away will cause valve seat larynx for a long time
The problem of diameter increases, degree of regulation reduces, and valve seat wall is thinning, intensity reduces.
4) setting of body base guiding counterbore increases casting, difficulty of processing, and is difficult to ensure processing quality, is unfavorable for
Installation and maintenance.
5) rotation of spool and valve body generate friction, and abrasion can be generated to valve body for a long time by continuing, and influence life of valve.
6) if valve rod is not connected with executing agency, under high pressure operating condition, valve rod can even fly out from guide sleeve, cause to be situated between
Matter leakage, brings security risk.
Therefore, it needs to develop a kind of cam flexure regulating valve suitable for High Pressure Difference operating condition containing solid particle, to solve
Above-mentioned technical problem.
Summary of the invention
The technical problem to be solved by the present invention is to provide a kind of cams suitable for High Pressure Difference operating condition containing solid particle
Regulating valve is bent, solves the problems, such as that the cam flexure regulating valve of prior art cannot be run steadily in the long term.
In order to realize the purpose, the technical scheme adopted by the utility model is that:
A kind of cam flexure regulating valve suitable for High Pressure Difference operating condition containing solid particle, regulating valve includes: valve body, spool group
Part, valve seat, valve rod, guide post, upper guide sleeve, lower guide sleeve and pressing ring nut；
Guide post is arranged in the part of installing guiding counterbore in valve body, and guide post is specially that lower end cross section is transversal greater than upper end
The through-hole opened up below the cylinder in face, guide post and valve body is adapted；
Several screw-threaded counterbores are set by the through-hole that valve body opens up, and the lower end of guide post is provided with the through-hole of identical quantity, leads
It is fixed below valve body to column by holding screw, gasket is also set up between guide post and valve body and is sealed；
Core assembly is split type structure, is equipped with spool bracket, spool alloy, spool bracket is c-type curved boom structure, with valve
Core alloy is bolted；
Spool bracket curved boom lower end is adapted with guide post, and lower guide sleeve is mounted on guide post and spool bracket attachment portion
Annular gap in, spool bracket and lower guide sleeve are interference fit, and lower guide sleeve and guide post are clearance fit, core assembly
Curved boom lower end is directly contacted with lower guide sleeve；
Spool bracket curved boom upper end and valve rod connection, when valve rod rotates, coupling structure transmits torque, by spool bracket
Curved boom drives core assembly rotation, completes opening and closing of the core assembly to valve seat；
Valve seat is compressed by pressing ring nut, is combined closely with the spherical surface of spool alloy, and sealing is reached；
Upper guide sleeve is the T shape rotary body for being provided with through-hole, is set on valve body ring-shaped step, upper guide sleeve lower end and spool
Bracket curved boom upper end directly contacts；Upper guide sleeve from bottom to up successively install isolated tube, Packing seat, filler assembly, filler pressure pipe,
Hold-down grid passes through the hold-down grid bolt and nut on hold-down grid) it is connected to valve body, to compress trim；
In annular gap between lower guide sleeve insertion guide post and spool bracket；
Isolated tube is provided with T shape through-hole；
The shaft shoulder is arranged in valve rod, and shaft shoulder diameter is greater than T shape through-hole end diameter in isolated tube, and shaft shoulder diameter is greater than Packing seat
Internal diameter, shaft shoulder diameter, which is greater than, is less than T shape through-hole outside diameter in isolated tube, and the axial position in valve rod direction is limited by the valve rod shaft shoulder
It moves.
Further, a kind of cam suitable for High Pressure Difference operating condition containing solid particle as above bends regulating valve, spool group
Spool alloy material in part is hard alloy.
Further, a kind of cam suitable for High Pressure Difference operating condition containing solid particle as above bends regulating valve, spool branch
Frame span is greater than valve inlet diameter and valve export diameter.
Further, a kind of cam suitable for High Pressure Difference operating condition containing solid particle as above bends regulating valve, spool branch
Binding face between frame and spool alloy is step surface；Spool rack platform is set as step surface, is bonded with spool rack platform
Spool alloy matched step surface is set.
Further, a kind of cam suitable for High Pressure Difference operating condition containing solid particle as above bends regulating valve, spool branch
The connection type of frame and spool alloy is one of following manner:
1. through-hole is arranged perpendicular to spool alloy step surface, the screw thread with quantity is equipped with perpendicular to spool bracket step surface
Hole is welded on spool frame bottom after screw bolt passes through-hole, threaded hole；
2. spool alloy is welded on spool bracket；
3. spool alloy step surface compatible with spool bracket is by being equipped with external screw thread, internal screw thread is coupled.
Further, a kind of cam suitable for High Pressure Difference operating condition containing solid particle as above bends regulating valve, valve rod with
The connection of core assembly is one of following form: spline, welding.
Further, a kind of cam suitable for High Pressure Difference operating condition containing solid particle as above bends regulating valve, valve seat
Valve seat runner carries out Surface hardened layer: spraying, surfacing, pile-up welding hard alloy by one of following form.
Further, a kind of cam suitable for High Pressure Difference operating condition containing solid particle as above bends regulating valve, and valve seat is logical
One of following two form is crossed to be hardened:
1. valve seat is composite valve holder assembly structure, including valve seat alloy and valve seat set, valve seat alloy uses hard alloy,
Valve seat is arranged with T shape through-hole, and valve seat alloy is T shape rotary body, and valve seat alloy covers interior T shape through-hole with valve seat and is adapted；
2. valve seat takes the form of whole hard alloy to be hardened.
Further, a kind of cam suitable for High Pressure Difference operating condition containing solid particle as above bends regulating valve, and valve rod is set
Set the anti-blow structure of the shaft shoulder.
The utility model has the beneficial effects that: provided by the utility model suitable for High Pressure Difference operating condition containing solid particle
Cam is bent under the operating condition that regulating valve can contain a large amount of solid particles in High Pressure Difference, especially medium, long-period stable operation,
Specific effect is as follows:
1, core assembly uses split-type design in the utility model, and spool alloy can be used hard alloy, effectively overcome
The erosion of High Pressure Difference, operating condition containing solid particle to spool spherical crown.
2, spool bracket by D type structure is changed to c-type structure in the utility model, spool bracket c-type span be greater than valve into,
Outlet diameter ensure that runner is unobstructed, reduces flow resistance, and reduce and wash away to spool bracket.
3, spool bracket and spool alloy binding face are step surface in the utility model, and core assembly is effectively avoided to connect spiral shell
Bolt bears cross shear.
4, spool bracket curved boom lower end is adapted with guide post in the utility model, curved boom upper end and valve rod by spline or
The connection of the forms such as key, can specifically be chosen by duty requirements.
5, valve seat can be used a variety of hardened forms in the utility model, including the hardening of valve seat water passage surface, valve component, whole
The forms such as body hard alloy can specifically be chosen by duty requirements.
6, the utility model cancels body base guiding counterbore, reduces valve body casting, difficulty of processing, ensure that processing matter
Amount is conducive to installation, maintenance.
7, the above setting of guide sleeve, lower guide sleeve in the utility model, avoids core assembly from directly contacting with valve body, reduces
Abrasion to valve body extends life of valve.
8, the anti-blow structure of the shaft shoulder is arranged in valve rod in the utility model, and valve rod is prevented to be not connected with executing agency, and valve insertion
When for high-pressure medium, valve rod flies out from axle sleeve.
Detailed description of the invention
Fig. 1 is the utility model regulating valve structure schematic diagram；
Fig. 2 is core assembly structural schematic diagram；
Fig. 3 is valve component structural schematic diagram；
Fig. 4 is valve seat whole hard alloy schematic diagram；
Fig. 5 is the anti-blow schematic diagram of valve rod.
In figure: 1 valve body, 2 core assemblies, 3 valve seats, 4 valve rods, 5 guide posts, guide sleeve on 6,7 lower guide sleeves, 8 pressing ring spiral shells
Mother, 9 isolated tubes, 10 Packing seats, 11 filler assemblies, 12 filler pressure pipes, 13 hold-down grids, 14 hold-down grid bolt and nuts, 15 is close
Packing, 16 holding screws, 17 spool brackets, 18 spool alloys, 19 core assembly bolts, 20 valve seat sets, 21 valve seat alloys.
Specific embodiment
Technical solutions of the utility model are described in detail in the following with reference to the drawings and specific embodiments.
As shown in Figure 1, a kind of cam suitable for High Pressure Difference operating condition containing solid particle of the utility model bends regulating valve, adjust
Saving valve includes: valve body 1, core assembly 2, valve seat 3, valve rod 4, guide post 5, upper guide sleeve 6, lower guide sleeve 7 and pressing ring nut 8；
Guide post 5 is arranged in the part of installing guiding counterbore in valve body 1, and guide post 5 is specially that lower end cross section is greater than upper end
The through-hole opened up below the cylinder of cross section, guide post 5 and valve body 1 is adapted；
Several screw-threaded counterbores are set by the through-hole that valve body 1 opens up, the lower end of guide post 5 is provided with the through-hole of identical quantity,
Guide post 5 is fixed on the lower section of valve body 1 by holding screw 16, also set up between guide post 5 and valve body 1 gasket 15 carry out it is close
Envelope；
Core assembly 2 is split type structure, is equipped with spool bracket 17, spool alloy 18, and spool bracket 17 is c-type curved boom knot
Structure, it is fixed by bolt 19 with spool alloy 18；
18 material of spool alloy in core assembly 2 is hard alloy；
As shown in Fig. 2, 17 curved boom lower end of spool bracket is adapted with guide post 5, lower guide sleeve 7 be mounted on guide post 5 with
In the annular gap of 17 coupling part of spool bracket, spool bracket 17 and lower guide sleeve 7 are interference fit, lower guide sleeve 7 with lead
It is clearance fit to column 5,2 curved boom lower end of core assembly is directly contacted with lower guide sleeve 7；
17 curved boom upper end of spool bracket and valve rod 4 couple, and when valve rod 4 rotates, coupling structure transmits torque, pass through spool branch
Curved boom drives core assembly 2 to rotate on frame 17, completes opening and closing of the core assembly 2 to valve seat 3；
17 span of spool bracket is greater than valve inlet diameter and valve export diameter；Spool bracket 17 and spool alloy 18 it
Between binding face be step surface；17 platform of spool bracket is set as step surface, the spool alloy being bonded with 17 platform of spool bracket
The 18 matched step surfaces of setting；
The connection type of spool bracket 17 and spool alloy 18 is one of following manner:
1. through-hole is arranged perpendicular to 18 step surface of spool alloy, the spiral shell with quantity is equipped with perpendicular to 17 step surface of spool bracket
Pit, bolt 19 are welded on 17 bottom of spool bracket after sequentially passing through through-hole, threaded hole；
2. spool alloy 18 is welded on spool bracket 17；
3. spool alloy 18 is with the compatible step surface of spool bracket 17 by being coupled equipped with external screw thread, internal screw thread；
Valve seat 3 is compressed by pressing ring nut 8, is combined closely with the spherical surface of spool alloy 18, and sealing is reached；
The valve seat runner of valve seat 3 carries out Surface hardened layer: spraying, surfacing, pile-up welding hard alloy by one of following form；
Valve seat 3 is hardened by one of following two form:
1. valve seat closes as shown in figure 3, valve seat 3 is composite valve holder assembly structure, including valve seat alloy 21 and valve seat set 20
Gold 21 uses hard alloy, and valve seat set 20 is equipped with T shape through-hole, and valve seat alloy 21 is T shape rotary body, valve seat alloy 21 and valve seat set
T shape through-hole is adapted in 20；
2. as shown in figure 4, valve seat takes the form of whole hard alloy to be hardened；
Upper guide sleeve 6 is the T shape rotary body for being provided with through-hole, is set on 1 ring-shaped step of valve body, upper 6 lower end of guide sleeve with
17 curved boom upper end of spool bracket directly contacts；Upper guide sleeve 6 successively installs isolated tube 9, Packing seat 10, filler assembly from bottom to up
11, filler pressure pipe 12, hold-down grid 13 are connected to valve body 1 by the hold-down grid bolt and nut 14 on hold-down grid 13, thus
Compress trim；
Lower guide sleeve 7 is embedded in the annular gap between guide post 5 and spool bracket 17；
As shown in figure 5, isolated tube 9 is provided with T shape through-hole；
The shaft shoulder is arranged in valve rod 4, and shaft shoulder diameter is greater than T shape through-hole end diameter in isolated tube 9, and shaft shoulder diameter is greater than Packing seat
10 internal diameter, shaft shoulder diameter, which is greater than, is less than T shape through-hole outside diameter in isolated tube 9, limits 4 direction of valve rod by 4 shaft shoulder of valve rod
Axial displacement.
The connection of valve rod 4 and core assembly 2 is one of following form: spline, welding.
The anti-blow structure of the shaft shoulder is arranged in valve rod 4.
Basic principles and main features and advantage of the invention have been shown and described above.The present invention is not by above-mentioned embodiment party
It is the principle of the present invention described in the limitation of formula, above embodiment and specification, is not departing from spirit of that invention and model
Under the premise of enclosing, there are also meeting various changes and modifications, these changes and improvements to both fall within claimed invention model by the present invention
In enclosing.Claimed range is invented to be defined by the appending claims and its equivalent thereof.
Claims (10)
1. a kind of cam suitable for High Pressure Difference operating condition containing solid particle bends regulating valve, it is characterised in that:
Regulating valve include: valve body (1), core assembly (2), valve seat (3), valve rod (4), guide post (5), upper guide sleeve (6), under lead
To set (7) and pressing ring nut (8)；
Guide post (5) are arranged in the part of installing guiding counterbore in valve body (1), and guide post (5) is specially lower end cross section greater than upper
The cylinder of cross section is held, the through-hole opened up below guide post (5) and valve body (1) is adapted；
Several screw-threaded counterbores are set by the through-hole that valve body (1) opens up, the lower end of guide post (5) is provided with the through-hole of identical quantity,
Guide post (5) is fixed below valve body (1) by holding screw (16), also sets up gasket between guide post (5) and valve body (1)
(15) it is sealed；
Core assembly (2) is split type structure, is equipped with spool bracket (17), spool alloy (18), and spool bracket (17) is that c-type is curved
Arm configuration, it is fixed by bolt (19) with spool alloy (18)；
Spool bracket (17) curved boom lower end is adapted with guide post (5), and lower guide sleeve (7) is mounted on guide post (5) and spool branch
In the annular gap of frame (17) coupling part, spool bracket (17) and lower guide sleeve (7) are interference fit, lower guide sleeve (7) with
Guide post (5) is clearance fit, and core assembly (2) curved boom lower end is directly contacted with lower guide sleeve (7)；
Spool bracket (17) curved boom upper end and valve rod (4) connection, when valve rod (4) rotates, coupling structure transmits torque, passes through spool
Curved boom drives core assembly (2) rotation on bracket (17), completes the opening and closing of core assembly (2) to valve seat (3)；
Valve seat (3) is compressed by pressing ring nut (8), is combined closely with the spherical surface of spool alloy (18), is reached sealing；
Upper guide sleeve (6) is the T shape rotary body for being provided with through-hole, is set on valve body (1) ring-shaped step, upper guide sleeve (6) lower end
It is directly contacted with spool bracket (17) curved boom upper end；Upper guide sleeve (6) successively installs isolated tube (9), Packing seat from bottom to up
(10), filler assembly (11), filler pressure pipe (12), hold-down grid (13), pass through the hold-down grid bolt on hold-down grid (13)
Nut (14) is connected to valve body (1), to compress trim；
In annular gap between lower guide sleeve (7) insertion guide post (5) and spool bracket (17)；
Isolated tube (9) is provided with T shape through-hole；
The shaft shoulder is arranged in valve rod (4), and shaft shoulder diameter is greater than isolated tube (9) interior T shape through-hole end diameter, and shaft shoulder diameter is greater than Packing seat
(10) internal diameter, shaft shoulder diameter, which is greater than, is less than isolated tube (9) interior T shape through-hole outside diameter, limits valve rod by valve rod (4) shaft shoulder
(4) axial displacement in direction.
2. a kind of cam suitable for High Pressure Difference operating condition containing solid particle as described in claim 1 bends regulating valve, feature
Be: spool alloy (18) material in core assembly (2) is hard alloy.
3. a kind of cam suitable for High Pressure Difference operating condition containing solid particle as described in claim 1 bends regulating valve, feature
Be: spool bracket (17) span is greater than valve inlet diameter and valve export diameter.
4. a kind of cam suitable for High Pressure Difference operating condition containing solid particle as described in claim 1 bends regulating valve, feature
Be: the binding face between spool bracket (17) and spool alloy (18) is step surface；Spool bracket (17) platform is set as platform
Matched step surface is arranged in terrace, the spool alloy (18) being bonded with spool bracket (17) platform.
5. a kind of cam suitable for High Pressure Difference operating condition containing solid particle as claimed in claim 4 bends regulating valve, feature
Be: the connection type of spool bracket (17) and spool alloy (18) is one of following manner:
1. through-hole is arranged perpendicular to spool alloy (18) step surface, the spiral shell with quantity is equipped with perpendicular to spool bracket (17) step surface
Pit, bolt (19) are welded on spool bracket (17) bottom after sequentially passing through through-hole, threaded hole；
2. spool alloy (18) is welded on spool bracket (17)；
3. spool alloy (18) step surface compatible with spool bracket (17) is by being equipped with external screw thread, internal screw thread is coupled.
6. a kind of cam suitable for High Pressure Difference operating condition containing solid particle as described in claim 1 bends regulating valve, feature
Be: the connection of valve rod (4) and core assembly (2) is one of following form: spline, welding.
7. a kind of cam suitable for High Pressure Difference operating condition containing solid particle as described in claim 1 bends regulating valve, feature
Be: the valve seat runner of valve seat (3) carries out Surface hardened layer: spraying, surfacing, pile-up welding hard alloy by one of following form.
8. a kind of cam suitable for High Pressure Difference operating condition containing solid particle as described in claim 1 bends regulating valve, feature
Be: valve seat (3) is hardened by one of following two form:
1. valve seat (3) is composite valve holder assembly structure, including valve seat alloy (21) and valve seat set (20), valve seat alloy (21) are adopted
With hard alloy, valve seat set (20) is equipped with T shape through-hole, and valve seat alloy (21) is T shape rotary body, valve seat alloy (21) and valve seat set
(20) interior T shape through-hole is adapted；
2. valve seat takes the form of whole hard alloy to be hardened.
9. a kind of cam suitable for High Pressure Difference operating condition containing solid particle as described in claim 1 bends regulating valve, feature
Be: the anti-blow structure of the shaft shoulder is arranged in valve rod (4).
10. a kind of cam suitable for High Pressure Difference operating condition containing solid particle as described in claim 1 bends regulating valve, feature
Be: spool alloy (18) material in core assembly (2) is hard alloy；
Spool bracket (17) span is greater than valve inlet diameter and valve export diameter；
Binding face between spool bracket (17) and spool alloy (18) is step surface；Spool bracket (17) platform is set as step
Matched step surface is arranged in face, the spool alloy (18) being bonded with spool bracket (17) platform；
The connection type of spool bracket (17) and spool alloy (18) is one of following manner:
1. through-hole is arranged perpendicular to spool alloy (18) step surface, the spiral shell with quantity is equipped with perpendicular to spool bracket (17) step surface
Pit, bolt (19) are welded on spool bracket (17) bottom after sequentially passing through through-hole, threaded hole；
2. spool alloy (18) is welded on spool bracket (17)；
3. spool alloy (18) step surface compatible with spool bracket (17) is by being equipped with external screw thread, internal screw thread is coupled；
The connection of valve rod (4) and core assembly (2) is one of following form: spline, welding；
The valve seat runner of valve seat (3) carries out Surface hardened layer: spraying, surfacing, pile-up welding hard alloy by one of following form；
Valve seat (3) is hardened by one of following two form:
1. valve seat (3) is composite valve holder assembly structure, including valve seat alloy (21) and valve seat set (20), valve seat alloy (21) are adopted
With hard alloy, valve seat set (20) is equipped with T shape through-hole, and valve seat alloy (21) is T shape rotary body, valve seat alloy (21) and valve seat set
(20) interior T shape through-hole is adapted；
2. valve seat takes the form of whole hard alloy to be hardened；
The anti-blow structure of the shaft shoulder is arranged in valve rod (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820715393.8U CN208252810U (en) | 2018-05-15 | 2018-05-15 | A kind of cam flexure regulating valve suitable for High Pressure Difference operating condition containing solid particle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820715393.8U CN208252810U (en) | 2018-05-15 | 2018-05-15 | A kind of cam flexure regulating valve suitable for High Pressure Difference operating condition containing solid particle |
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| Publication Number | Publication Date |
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| CN208252810U true CN208252810U (en) | 2018-12-18 |
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ID=64634563
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| Application Number | Title | Priority Date | Filing Date |
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| CN201820715393.8U Active CN208252810U (en) | 2018-05-15 | 2018-05-15 | A kind of cam flexure regulating valve suitable for High Pressure Difference operating condition containing solid particle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110486493A (en) * | 2018-05-15 | 2019-11-22 | 北京航天石化技术装备工程有限公司 | A kind of cam flexure regulating valve suitable for High Pressure Difference operating condition containing solid particle |
-
2018
- 2018-05-15 CN CN201820715393.8U patent/CN208252810U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110486493A (en) * | 2018-05-15 | 2019-11-22 | 北京航天石化技术装备工程有限公司 | A kind of cam flexure regulating valve suitable for High Pressure Difference operating condition containing solid particle |
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