CN214248354U - Governing valve with prevent changeing function - Google Patents
Governing valve with prevent changeing function Download PDFInfo
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- CN214248354U CN214248354U CN202022617393.4U CN202022617393U CN214248354U CN 214248354 U CN214248354 U CN 214248354U CN 202022617393 U CN202022617393 U CN 202022617393U CN 214248354 U CN214248354 U CN 214248354U
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Abstract
The utility model relates to the technical field of valves, specifically disclose a governing valve with prevent changeing function, including valve body, valve rod, valve gap, valve cage and case, the valve cage sets up in the valve body, and the top of valve cage compresses tightly through the valve gap, and the valve gap is fixed on the valve body, and in stretching into the valve cage behind the valve gap was passed to the one end of valve rod, the case setting stretched into the one end in the valve cage at the valve rod, and the valve rod drives case and valve cage cooperation, and the hole of valve cage is multilateral hole, and the outer wall of case is the polygon with the hole matched with of valve cage. The utility model discloses governing valve with prevent changeing function simple structure, processing is convenient, adopts polygon complex design between valve case and the case, has prevented the rotation between case and the valve case to reduce the wearing and tearing of case, valve case, solved the problem that case and valve rod connect not hard up, make the governing valve can use in the high velocity of flow operating mode; meanwhile, the damage to the actuator is also prevented, and the service life of the valve is prolonged.
Description
Technical Field
The utility model belongs to the technical field of the valve, specifically a governing valve with prevent changeing function.
Background
The regulating valve is also called a control valve, changes the flow of fluid by receiving a control signal output by a regulating control unit and by means of power operation, and plays an important role in the modern industrial field. The existing cage type regulating valve comprises a valve body and a valve cover, wherein a water inlet cavity and a water outlet cavity are respectively arranged on two sides of the valve body, a sleeve is arranged between the water inlet cavity and the water outlet cavity, an opening is formed in the sleeve, a valve seat is arranged at the lower end of the sleeve, a valve core is arranged at the center of the valve seat, the valve core is connected with a valve rod above the valve core, and the valve rod is controlled by an actuator and plays a role in opening, closing, throttling and pressure regulating through the lifting of the valve core. When the valve core of the prior cage type regulating valve is partially opened, fluid enters the inner cavity of the valve body through the water inlet cavity and then enters the water outlet cavity through the opening on the sleeve. When fluid enters the valve body water outlet cavity from the water inlet cavity, the valve core is driven to rotate due to overhigh medium flow velocity, so that the valve core and the valve cage are abraded; the valve core and the valve rod are connected and loosened to influence the stroke of the valve; in severe cases, the push rod of the actuator can be driven to rotate, and the actuator is damaged.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a governing valve with prevent changeing function is provided, the above-mentioned problem that proposes is solved.
For solving the technical problem, the utility model provides a governing valve with prevent changeing function, including valve body, valve rod, valve gap, valve cage and case, the valve cage sets up in the valve body, the top of valve cage compresses tightly through the valve gap, the valve gap is fixed on the valve body, the one end of valve rod is passed stretch into behind the valve gap in the valve cage, the case sets up the valve rod stretches into one end in the valve cage, the valve rod drives the case with the valve cage cooperation, the hole of valve cage is multilateral hole, the outer wall of case be with the hole matched with polygon of valve cage.
Furthermore, an inner hole of the upper section of the valve cage is a polygonal hole, an inner hole of the lower section of the valve cage is a circular hole, and the diameter of the circular hole is smaller than that of the polygonal hole; the middle section of the valve core is provided with a polygonal boss matched with the polygonal hole, and the lower section of the valve core is provided with a cylinder matched with the circular hole.
Furthermore, a plurality of adjusting flow channels are arranged on the lower section of the valve cage, and the cross-sectional area of each adjusting flow channel is gradually reduced from top to bottom.
Further, the internal bore of the cage may comprise a pentagonal, hexagonal, heptagonal, or octagonal bore.
Furthermore, a balance hole penetrating through the valve core is formed in the valve core.
Furthermore, the valve rod is connected with the valve core through threads, and the lower end connecting port is welded and sealed.
Furthermore, sealing gaskets are arranged between the valve body and the contact surface of the outer end face of the valve cage.
Further, the valve cover and the valve body are fixed through bolts.
Furthermore, a packing group is arranged between the valve cover and the valve rod and is pressed tightly through a gland.
The utility model has the advantages that: the utility model discloses governing valve with prevent changeing function simple structure, processing is convenient, adopts polygon complex design between valve case and the case, has prevented the rotation between case and the valve case to reduce the wearing and tearing of case, valve case, solved the problem that case and valve rod connect not hard up, make the governing valve can use in the high velocity of flow operating mode; meanwhile, the damage to the actuator is also prevented, and the service life of the valve is prolonged.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings needed for the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a sectional view showing the overall structure of a valve body of a regulator valve having an anti-rotation function;
FIG. 2 is a schematic illustration of a cage of a regulator valve having an anti-rotation feature;
fig. 3 is a schematic structural view of a spool of a regulator valve having an anti-rotation function.
In the figure: 1-valve body, 2-valve rod, 3-valve cover, 4-valve cage, 5-valve core, 6-packing group, 41-polygonal hole, 42-circular hole, 43-adjusting flow passage, 51-polygonal boss, 52-cylinder and 53-balancing hole.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
In a specific embodiment of the utility model, as shown in fig. 1-3, specifically disclose a governing valve with prevent changeing function, including valve body 1, valve rod 2, valve gap 3, valve cage 4 and case 5, valve cage 4 sets up in the valve body 1, be equipped with sealed the pad between valve body 1 and the valve cage 4, the top of valve cage 4 compresses tightly through valve gap 3, pass through bolt fastening between valve gap 3 and the valve body 1.
One end of the valve rod 2 penetrates through the valve cover 3 and then extends into the valve cage 4, the valve core 5 is arranged at one end of the valve rod 2 extending into the valve cage 4, the valve rod 2 is connected with the valve core 5 through threads, a lower end connecting port is welded and sealed, and the valve rod 2 drives the valve core 5 to be matched with the valve cage 4.
The upper section of the inner hole of the valve cage 4 is an octagonal hole 41, the lower section of the inner hole is a circular hole 42, the diameter of the circular hole 42 is smaller than that of the polygonal hole 41, and the inner hole of the valve cage 4 is preferably an octagonal hole. The lower section of the valve cage 4 is provided with a plurality of adjusting flow passages 43, and the cross-sectional area of the adjusting flow passages 43 is gradually reduced from top to bottom, so that the medium flow is gradually increased when the valve core 5 is gradually opened.
The outer wall of the valve core 5 is a polygon matched with the inner hole of the valve cage 4, preferably, a polygon boss 51 matched with the polygon hole 41 is arranged at the middle section of the valve core 5, and a cylinder 52 matched with the circular hole 42 is arranged at the lower section of the valve core 5. The valve core 5 is further provided with a balance hole 53 penetrating through the valve core 5, and the balance hole 53 is used for relieving the pressure of medium flow.
And a packing group 6 is arranged between the valve cover 3 and the valve rod 2, and the packing group 6 is compressed through a gland.
The utility model discloses the working process of governing valve with prevent changeing the function does: two flow passages are arranged in a valve body 1 of the regulating valve, wherein one side of the flow passage is a flow passage inlet, the other side of the flow passage inlet is a flow passage outlet, an actuator is opened, a valve rod 2 drives a valve core 5 to vertically operate in a valve cage 4, a polygonal boss 51 of the valve core 5 is matched with a polygonal hole 41 of the valve cage 4, and the valve core 5 and the valve cage 4 cannot rotate during operation; when the valve core 5 is jointed with the valve cover 3, the medium flows from the flow channel inlet, flows through the adjusting flow channel on the valve cage 4, enters the valve cage 4 and then flows to the flow channel outlet.
The above disclosure is only a preferred embodiment of the present invention, and certainly should not be taken as limiting the scope of the invention, which is defined by the claims and their equivalents.
Claims (9)
1. The adjusting valve with the rotation preventing function comprises a valve body (1), a valve rod (2), a valve cover (3), a valve cage (4) and a valve core (5), wherein the valve cage (4) is arranged in the valve body (1), the upper part of the valve cage (4) is tightly pressed through the valve cover (3), the valve cover (3) is fixed on the valve body (1), one end of the valve rod (2) penetrates through the valve cover (3) and then extends into the valve cage (4), the valve core (5) is arranged at one end of the valve rod (2) extending into the valve cage (4), and the valve rod (2) drives the valve core (5) to be matched with the valve cage (4).
2. An anti-rotation regulating valve according to claim 1, characterized in that the upper section of the inner bore of the cage (4) is a polygonal bore (41), the lower section of the inner bore is a circular bore (42), and the diameter of the circular bore (42) is smaller than that of the polygonal bore (41); the middle section of the valve core (5) is provided with a polygonal boss (51) matched with the polygonal hole (41), and the lower section of the valve core is provided with a cylinder (52) matched with the circular hole (42).
3. The adjusting valve with rotation prevention function according to claim 2, characterized in that the lower section of the valve cage (4) is provided with a plurality of adjusting flow passages (43), and the cross-sectional area of the adjusting flow passages (43) is gradually decreased from top to bottom.
4. An anti-rotation regulating valve according to claim 1, characterized in that the inner bore of the cage (4) comprises a pentagonal, hexagonal, heptagonal or octagonal bore.
5. The regulating valve with rotation prevention function according to claim 1, characterized in that the valve core (5) is provided with a balance hole (53) penetrating through the valve core (5).
6. The regulating valve with the rotation prevention function according to claim 1, characterized in that the valve rod (2) and the valve core (5) are connected through threads, and are welded and sealed at the lower end connection port.
7. An anti-rotation regulating valve according to claim 1, characterized in that a sealing gasket is provided between the contact surfaces of the valve body (1) and the cage (4).
8. An anti-rotation regulating valve according to claim 1, wherein the valve cover (3) and the valve body (1) are fixed by bolts.
9. An anti-rotation regulating valve according to claim 1, characterized in that a packing set (6) is provided between the valve cover (3) and the valve stem (2), and the packing set (6) is compressed by a gland.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022617393.4U CN214248354U (en) | 2020-11-12 | 2020-11-12 | Governing valve with prevent changeing function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022617393.4U CN214248354U (en) | 2020-11-12 | 2020-11-12 | Governing valve with prevent changeing function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214248354U true CN214248354U (en) | 2021-09-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022617393.4U Active CN214248354U (en) | 2020-11-12 | 2020-11-12 | Governing valve with prevent changeing function |
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| CN (1) | CN214248354U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114135686A (en) * | 2021-12-09 | 2022-03-04 | 温州芝寰流体技术有限公司 | Plunger type porous decompression flash valve |
-
2020
- 2020-11-12 CN CN202022617393.4U patent/CN214248354U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114135686A (en) * | 2021-12-09 | 2022-03-04 | 温州芝寰流体技术有限公司 | Plunger type porous decompression flash valve |
| CN114135686B (en) * | 2021-12-09 | 2023-08-25 | 浙江芝寰流体技术有限公司 | Plunger type porous pressure-reducing flash valve |
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