CN110894882B

CN110894882B - Regulating valve

Info

Publication number: CN110894882B
Application number: CN201910885098.6A
Authority: CN
Inventors: 钟福来; 赵芳; 詹宁
Original assignee: Beijing Siemens Cerberus Electronics Ltd
Current assignee: Beijing Siemens Cerberus Electronics Ltd
Priority date: 2019-09-19
Filing date: 2019-09-19
Publication date: 2024-10-01
Anticipated expiration: 2039-09-19
Also published as: CN110894882A

Abstract

The regulating valve comprises a valve body (10), a flexible pipe (20), a plurality of regulating blades (30) and a regulating piece (40). The valve body has a valve opening (11) which is arranged through in a first direction (D1). The flexible pipe passes through the valve hole and locates the valve body. A plurality of adjustment vanes are arranged around the flexible tube. Each adjusting blade is rotatably connected with the valve body, and the rotation axis is parallel to the first direction. Each adjusting vane has an adjusting end (311) remote from its axis of rotation in a radial direction perpendicular to its axis of rotation. Each of the regulating blades can be rotated to make its regulating end extend into or withdraw from the valve hole along a locus perpendicular to the first direction, and can regulate the inner diameter of the flexible pipe by abutting against the flexible pipe. The adjusting piece can drive the plurality of adjusting blades to rotate. The regulating valve has good sealing performance.

Description

Regulating valve

Technical Field

The invention relates to a regulating valve, in particular to a regulating valve with good sealing performance.

Background

Currently, the flaps of most regulating valves are located in a conduit for the passage of a fluid, in use in direct contact with the fluid. The valve opening can be controlled by moving the valve rod to adjust the position of the valve clack. The valve stem needs to pass through the valve body, and thus a dynamic seal is required between the valve stem and the valve body. Because dynamic sealing has the abrasion problem, the sealing effect can be influenced after long-term use.

Disclosure of Invention

The invention aims to provide the regulating valve which has better sealing performance.

The invention provides a regulating valve which comprises a valve body, a flexible pipe, a plurality of regulating blades and a regulating piece. The valve body has a valve hole penetrating along a first direction. The flexible pipe passes through the valve hole and locates the valve body. A plurality of adjustment vanes are arranged around the flexible tube. Each adjusting blade is rotatably connected with the valve body, and the rotation axis is parallel to the first direction. Each adjusting vane has an adjusting end remote from its axis of rotation in a radial direction perpendicular to its axis of rotation. Each of the regulating blades can be rotated to make its regulating end extend into or withdraw from the valve hole along a locus perpendicular to the first direction, and can regulate the inner diameter of the flexible pipe by abutting against the flexible pipe. The adjusting piece can drive the plurality of adjusting blades to rotate.

The regulating valve can squeeze the flexible pipe to different degrees by driving the regulating blades to rotate, so that the inner diameter of the flexible pipe is changed, and the effect of regulating the fluid flow is achieved. When the regulating valve is used, the sealing of the whole valve can be realized only by static sealing of two ports of the flexible pipe, so that dynamic sealing is not needed, the reliability is higher, and the service life is longer.

In another exemplary embodiment of the regulator valve, the flexible tube includes one tubular portion and two cuff portions. The tubular part passes through the valve hole and is arranged on the valve body. The two burring parts are respectively connected to both ends of the tubular part in the first direction. Each cuff portion surrounds the tubular portion and extends outwardly along a plane perpendicular to the first direction. The structure is simpler and the sealing effect is better.

In yet another exemplary embodiment of the regulator valve, the outer edge of the burring is in the shape of a ring protruding in the first direction and the opposite direction. The outer edges of the two flanging parts are respectively embedded into two end surfaces of the valve body along the first direction. Thereby improving the sealing effect.

In yet another exemplary embodiment of the regulator valve, the regulator valve further comprises two tubular joints. The two tubular joints are respectively fixedly connected with two ends of the valve body in the first direction, and are respectively connected with two flanging parts of the flexible pipe in a sealing manner through abutting. The external pipeline can be directly connected with the two tubular connectors, so that the abrasion of the flexible pipe caused by repeated disassembly and assembly is avoided, and the service life of the regulating valve is prolonged.

In yet another exemplary embodiment of the regulator valve, each regulator blade includes a regulator blade layer and a driver blade layer. The adjusting end is arranged on the adjusting sheet layer. The adjusting sheet layers of the plurality of adjusting blades are arranged along a plane perpendicular to the first direction. The driving sheet layer is disposed on one side of the regulating sheet layer in the first direction. The adjusting piece drives the adjusting blade to rotate through the driving sheet layer. In each adjacent two adjusting blades, the adjusting sheet layer of one adjusting blade and the driving sheet layer of the other adjusting blade are always at least partially overlapped along the first direction. The mechanical strength of the control valve can thereby be increased by the mutual abutment of the control vanes.

In a further exemplary embodiment of the adjusting valve, the adjusting end of each adjusting vane forms a receiving slot for receiving an adjusting end of an adjacent adjusting vane. Each adjusting vane can be rotated to extend into the accommodating groove of one adjusting vane adjacent to the adjusting vane. Thereby realizing space abdication and being beneficial to reducing the volume of the regulating valve.

In a further exemplary embodiment of the control valve, each control vane has a control lever extending in the first direction. The regulating member includes an annular portion disposed around the valve hole and located on one side of the plurality of regulating blades in the first direction. The annular part is rotatably connected with the valve body, and the rotation axis of the annular part is parallel to the first direction and is positioned in the valve hole. The inner edge of the annular part is recessed to form a plurality of sliding grooves. The adjusting rods penetrate through the sliding grooves in a one-to-one correspondence manner, and can slide in the sliding grooves under the pushing of the groove walls of the sliding grooves when the annular part rotates, so that the adjusting blades are driven to rotate along the same clockwise direction. The structure is simple and the stability is good.

In a further exemplary embodiment of the regulator valve, the valve body has an annular chamber surrounding the valve bore. The plurality of adjusting blades and the annular portion are disposed in the annular cavity. The adjustment member also includes an adjustment handle. One end of the adjusting handle is connected with the annular part, the other end extends to the outside of the valve body. The important parts are arranged in the annular cavity, so that the overall stability of the regulating valve is improved.

In yet another exemplary embodiment of the regulator valve, the regulator valve further includes a return spring connecting the valve body and an end of the regulator handle outside the valve body to continuously apply a force to the regulator handle that can withdraw the regulating ends of the plurality of regulator blades from the valve bore. Therefore, the two-way adjustment of the opening of the valve can be realized by only providing a unidirectional driving force for the adjusting handle, the requirement on a driving mechanism is reduced, and the cost is saved.

In yet another exemplary embodiment of the regulator valve, the chamber wall of the annular chamber is in sliding engagement with the outer edge of the annular portion to define the axis of rotation of the annular portion. The structure is beneficial to saving space and facilitating processing.

In yet another exemplary embodiment of the regulator valve, the regulator valve further comprises an actuator. The actuator is connected with the valve body and can drive the adjusting piece to drive the plurality of adjusting blades to rotate.

Drawings

The following drawings are only illustrative of the invention and do not limit the scope of the invention.

Fig. 1 is a schematic structural view of an exemplary embodiment of a regulator valve.

Fig. 2 is an exploded view of the regulator valve shown in fig. 1.

Fig. 3 is a cross-sectional view of the regulator valve shown in fig. 1.

Fig. 4 is a top view of the valve body of the regulator valve shown in fig. 1 in a first direction.

Fig. 5 is a schematic structural view of a flexible tube of the regulator valve shown in fig. 1.

Fig. 6 is a view for showing one use state of the adjusting vane and the flexible tube of the adjusting valve shown in fig. 1.

Fig. 7 is a schematic view of the structure of the adjusting vane of the adjusting valve shown in fig. 1.

Fig. 8 is a view for showing another use state of the adjusting vane and the flexible tube of the adjusting valve shown in fig. 1.

Fig. 9 is a schematic structural view of another exemplary embodiment of a regulator valve.

Description of the reference numerals

10. Valve body

11. Valve hole

12. Annular cavity

20. Flexible pipe

21. Tubular portion

22. Flanging part

221. Outer edge

30. Adjusting blade

31. Regulating sheet layer

311. Adjusting end

312. Accommodating groove

32. Driving sheet layer

33. Adjusting rod

34. Rotating rod

40. Adjusting piece

41. Annular part

411. Sliding chute

42. Adjusting handle

50. Tubular joint

60. Return spring

70. Actuator

D1 First direction

Detailed Description

For a clearer understanding of the technical features, objects and effects of the present invention, embodiments of the present invention will now be described with reference to the drawings, in which like reference numerals refer to identical or structurally similar but functionally identical components throughout the separate views.

In this document, "schematic" means "serving as an example, instance, or illustration," and any illustrations, embodiments described herein as "schematic" should not be construed as a more preferred or advantageous solution.

Herein, "first", "second", etc. do not indicate the degree of importance or order thereof, etc., but merely indicate distinction from each other to facilitate description of documents.

For the sake of simplicity of the drawing, the parts relevant to the present invention are shown only schematically in the figures, which do not represent the actual structure thereof as a product. In addition, for simplicity and ease of understanding, components having the same structure or function in some of the figures are shown schematically only one of them, or only one of them is labeled.

Fig. 1 is a schematic structural view of an exemplary embodiment of a regulating valve, fig. 2 is a corresponding exploded view, and fig. 3 is a corresponding sectional view. As shown in fig. 1 to 3, the regulating valve includes a valve body 10, a flexible tube 20, six regulating blades 30, and a regulating member 40, wherein the flexible tube is omitted in fig. 2. Fig. 4 is a top view of the valve body 10 shown in fig. 1 in the first direction D1. As shown in fig. 4, the valve body 10 has one valve hole 11, and the valve hole 11 is provided to penetrate in the first direction D1. The flexible tube 20 is inserted through the valve hole 11 in the valve body 10 and is used for fluid passage.

Fig. 5 is a schematic structural view of the flexible tube 20. As shown in fig. 3 and 5, the flexible tube 20 includes one tubular portion 21 and two burring portions 22. The tubular portion 21 passes through the valve hole 11 and is provided in the valve body 10. The two burring parts 22 connect both ends of the tubular part 21 in the first direction D1, respectively. Each burring 22 surrounds the tubular portion 21 and extends outwardly along a plane perpendicular to the first direction D1. When the regulating valve is connected with an external pipeline, sealing can be realized by abutting against the flanging part 22, and the sealing structure is simpler and has better sealing effect, but the regulating valve is not limited to the sealing structure. The flexible pipe is made of flexible rubber material, for example, and has good ductility and restoring force. Alternatively, the flexible tube may also be made of a rubber membrane with a longer service life.

In the present exemplary embodiment, the outer edge 221 of the burring 22 has a ring shape protruding in the first direction D1 and the opposite direction. The outer edges 221 of the two burring parts 22 are respectively fitted into both end surfaces of the valve body 10 in the first direction D1. Specifically, on both end surfaces of the valve body 10 in the first direction D1, a groove corresponding to the outer edge 221 of the burring 22 is provided, respectively, and the outer edge 221 may be fitted into the corresponding groove. Thereby improving the sealing effect. But is not limited thereto.

As shown in fig. 2 and 3, the valve body 10 has an annular chamber 12 surrounding the valve bore 11. Six adjustment vanes 30 are provided in the annular chamber 12.

As shown in fig. 1 to 3, in the present exemplary embodiment, the valve body 10 is formed by combining two parts, which enclose the annular chamber 12, whereby assembly can be facilitated, but is not limited thereto. As shown in fig. 2, six adjusting blades 30 are looped. Fig. 6 is a view for explaining the positional relationship of the six regulating blades 30 and the flexible tube 20, the viewing angle direction of which is the opposite direction to the first direction D1. As shown in fig. 6, six adjusting blades 30 are arranged around the flexible tube 20.

Fig. 7 is a schematic view of the structure of the regulating blade 30. As shown in fig. 2 and 7, each of the adjustment blades 30 has a rotation lever 34 extending in the first direction D1. The rotation lever 34 is rotatably inserted into the valve body 10, and the rotation axis is parallel to the first direction D1. Each adjustment vane 30 has an adjustment end 311 remote from its axis of rotation in a radial direction perpendicular to its axis of rotation. Each of the regulating blades 30 can be inserted into or withdrawn from the valve hole 11 along a locus perpendicular to the first direction D1 by rotating the regulating end 311 thereof, and can regulate the inner diameter of the flexible tube 20 by abutting against the flexible tube 20. Fig. 6 and 8 show the change in the inner diameter of the flexible tube 20 at different rotational positions of the adjustment blade 30, respectively. Wherein, in fig. 6, the inner diameter of the flexible pipe 20 is the largest, and the opening of the regulating valve is the largest; in fig. 8, the flexible tube 20 has a zero inside diameter, no fluid is allowed to pass through, and the opening of the regulator valve is minimal. The direction of movement of the regulator blade 30 is substantially perpendicular to the direction of fluid flow, and the amount of force required to actuate the rotation of the regulator blade is less to facilitate closing the valve at higher differential pressures.

The adjustment member 40 is capable of driving the six adjustment blades 30 to rotate. Specifically, in the present exemplary embodiment, as shown in fig. 2 and 7, each of the adjustment blades 30 has one adjustment lever 33 extending in the first direction D1. The adjustment lever 33 and the rotation lever 34 are provided at both ends of the adjustment blade 30 in the first direction D1, respectively. The adjusting lever 33 and the rotating lever 34 are respectively provided on surfaces of the adjusting blades 30 opposite to each other, and protrude in opposite directions. For example, the adjusting lever 33 extends in the first direction D1, and the rotating lever protrudes in the direction opposite to the first direction. As shown in fig. 2, the regulating member 40 includes an annular portion 41 and a regulating handle 42, the annular portion 41 being disposed around the valve hole 11 and located at one side of the six regulating blades 30 in the first direction D1. The annular portion 41 is rotatably connected to the valve body 10 with its rotational axis parallel to the first direction D1 and located in the valve hole 11. The inner edge of the annular portion 41 is recessed to form six slide grooves 411 (only one of which is indicated in the drawing). The six adjusting rods 33 are correspondingly arranged on the six sliding grooves 411 in a penetrating manner, and can slide in the sliding grooves 411 under the pushing of the groove walls of the sliding grooves 411 when the annular portion 41 rotates, so that the six adjusting blades 30 are driven to rotate in the same clockwise direction. But is not limited thereto, in other exemplary embodiments, the slide slot 411 may also be a slide hole. The annular portion 41 is disposed in the annular cavity 12, and one end of the adjusting handle 42 is connected to the annular portion 41, and the other end extends to the outside of the valve body 10 for driving the annular portion 41 to rotate.

The regulating valve of the present exemplary embodiment can compress the flexible pipe 20 to various degrees by driving the rotation of the regulating blade 30, thereby changing the inner diameter of the flexible pipe 20, thereby functioning to regulate the flow rate of fluid. When the regulating valve is used, the sealing of the whole valve can be realized only by static sealing of two ports of the flexible pipe 20, so that dynamic sealing is not needed, the reliability is higher, and the service life is longer.

In the present exemplary embodiment, the number of the adjustment blades 30 is set to six, but is not limited thereto, and in other exemplary embodiments, the number of the adjustment blades 30 may be adjusted as needed. The manner of driving the adjusting blade is not limited to the example given in fig. 2, but can also be implemented by other transmission mechanisms. For example, a rotation of the adjusting blade in a direction perpendicular to the first direction D1 may be converted into a linear movement in a certain direction or into a rotational movement about an axis perpendicular to the first direction D1.

In the present exemplary embodiment, the cavity wall of the annular cavity 12 is in sliding engagement with the outer edge 221 of the annular portion 41 to define the axis of rotation of the annular portion 41. The structure is beneficial to saving space and facilitating processing. But is not limited thereto.

As shown in fig. 7, in the exemplary embodiment, each conditioning vane 30 includes one conditioning sheet 31 and one driving sheet 32. The adjustment end 311 is provided on the adjustment sheet 31, and the adjustment rod 33 is provided on the driving sheet 32. The adjustment lamellae 31 of the six adjustment vanes 30 are arranged along a plane perpendicular to the first direction D1. The driving sheet 32 is disposed on one side of the regulating sheet 31 in the first direction D1. Referring to fig. 2, 6 and 8, in each adjacent two of the regulating blades 30, the regulating blade layer 31 of one regulating blade 30 is always partially overlapped with the driving blade layer 32 of the other regulating blade 30 in the first direction D1. Whereby the mechanical strength of the regulating valve can be increased by the mutual abutment of the regulating blades 30.

As shown in fig. 7, in the exemplary embodiment, the adjustment end 311 of each adjustment vane 30 forms a receiving groove 312 for receiving the adjustment end 311 of an adjacent adjustment vane 30. As shown in fig. 8, the adjustment end 311 of each adjustment vane 30 can be rotated to extend into the receiving groove 312 of one adjustment vane 30 adjacent thereto. Thereby, a spatial yielding is achieved such that the individual adjusting blades, when they are rotated into the minimum opening position, have a smaller area around the central opening formed. In this case, the regulating valve can realize almost no leakage at the minimum opening degree in consideration of the pipe wall thickness of the flexible pipe itself and the redundancy of flexibility. At the same time, the design is beneficial to reducing the volume of the regulating valve.

As shown in fig. 1, in the exemplary embodiment, the regulating valve further includes a return spring 60 connecting the valve body 10 and one end of the regulating handle 42 located at the outside of the valve body 10 to continuously apply a force to the regulating handle 42 capable of withdrawing the regulating ends 311 of the six regulating blades 30 from the valve hole 11. Thereby, the bidirectional adjustment of the valve opening can be realized by only providing unidirectional driving force for the adjusting handle 42, the requirement on a driving mechanism is reduced, and the cost is saved.

Fig. 9 is a schematic structural view of another exemplary embodiment of a regulating valve, in which two tubular joints 50 and one actuator 70 are added to the regulating valve shown in fig. 1.

The two tubular joints 50 are fixedly connected to both ends of the valve body 10 in the first direction D1, respectively, and sealingly connect the two burring portions 22 of the flexible pipe 20 by abutting against each other. The external pipeline can be directly connected with the two tubular joints 50, so that the abrasion of the flexible pipe 20 caused by repeated disassembly and assembly is avoided, and the service life of the regulating valve is prolonged.

The actuator 70 is connected with the valve body 10 and can drive the adjusting piece 40 to rotate, so as to drive the plurality of adjusting blades 30 to rotate, and the opening degree of the valve is adjusted. The actuator 70 is connected to the valve body 10 to improve stability of the regulator valve.

It should be understood that although the present disclosure has been described in terms of various embodiments, not every embodiment is provided with a separate technical solution, and this description is for clarity only, and those skilled in the art should consider the disclosure as a whole, and the technical solutions in the various embodiments may be combined appropriately to form other embodiments that will be understood by those skilled in the art.

The above list of detailed descriptions is only specific to practical examples of the present invention, and they are not intended to limit the scope of the present invention, and all equivalent embodiments or modifications, such as combinations, divisions or repetitions of features, without departing from the technical spirit of the present invention are included in the scope of the present invention.

Claims

1. The governing valve, its characterized in that includes:

A valve body (10) having a valve hole (11), said valve hole (11) being arranged through in a first direction (D1); a flexible tube (20) passing through the valve hole (11) and passing through the valve body (10);

-a plurality of adjustment blades (30), the plurality of adjustment blades (30) being arranged around the flexible tube (20); each of the adjustment blades (30) is rotatably connected to the valve body (10) and the axis of rotation is parallel to the first direction (D1); each of said adjustment blades (30) has an adjustment end (311) remote from its axis of rotation in a radial direction perpendicular to its axis of rotation; each of the regulating blades (30) is capable of extending or retracting the regulating end (311) thereof into or from the valve hole (11) along a locus perpendicular to the first direction (D1) by rotating, and regulating the inner diameter of the flexible tube (20) by abutting against the flexible tube (20); and

An adjusting member (40) capable of driving the plurality of adjusting blades (30) to rotate;

each of the adjustment blades (30) comprises:

-a regulating lamina (31), said regulating end (311) being arranged on said regulating lamina (31), said regulating lamina (31) of said plurality of regulating blades (30) being arranged along a plane perpendicular to the first direction (D1); and

A driving sheet (32) provided on one side of the regulating sheet (31) in the first direction (D1); the adjusting piece (40) drives the adjusting blade (30) to rotate through the driving sheet layer (32); -in each adjacent two of said adjustment blades (30), said adjustment sheet (31) of one of said adjustment blades (30) at least partially overlaps said driving sheet (32) of the other adjustment blade (30) along said first direction (D1);

the adjustment end (311) of each adjustment blade (30) forms a receiving slot (312) for receiving the adjustment end (311) of an adjacent adjustment blade (30); each of the adjustment blades (30) is rotatable into the receiving slot (312) of an adjacent adjustment blade (30).

2. The regulator valve according to claim 1, wherein the flexible tube (20) comprises:

A tubular portion (21) penetrating the valve body (10) through the valve hole (11);

Two burring parts (22) respectively connecting both ends of the tubular part (21) in the first direction (D1); each of the burring portions (22) surrounds the tubular portion (21) and extends outwardly along a plane perpendicular to the first direction (D1).

3. A regulating valve according to claim 2, wherein the outer edge (221) of the flange portion (22) is in the form of a ring protruding in the first direction (D1) and in the opposite direction; the outer edges (221) of the two burring parts (22) are respectively embedded into both end surfaces of the valve body (10) in the first direction (D1).

4. A regulating valve according to claim 3, further comprising two tubular joints (50); the two tubular joints (50) are fixedly connected to both ends of the valve body (10) in the first direction (D1), respectively, and are sealingly connected to the two burring portions (22) of the flexible pipe (20) by abutting against each other, respectively.

5. A regulating valve according to claim 1, wherein each of said regulating blades (30) has a regulating stem (33) extending in the first direction (D1); the adjusting member (40) comprises an annular portion (41), the annular portion (41) being disposed around the valve hole (11) and being located on one side of the plurality of adjusting blades (30) in the first direction (D1); the annular portion (41) is rotatably connected to the valve body (10) with its axis of rotation parallel to the first direction (D1) and located in the valve hole (11); the inner edge of the annular part (41) is concavely formed into a plurality of sliding grooves (411); the adjusting rods (33) are correspondingly arranged in the sliding grooves (411) in a penetrating mode, and can slide in the sliding grooves (411) under the pushing of the groove walls of the sliding grooves (411) when the annular portion (41) rotates, so that the adjusting blades (30) are driven to rotate in the same clockwise direction.

6. A regulator valve according to claim 5, wherein said valve body (10) has an annular cavity (12) surrounding said valve orifice (11), said plurality of regulator blades (30) and said annular portion (41) being disposed in said annular cavity (12); the adjusting piece (40) further comprises an adjusting handle (42), one end of the adjusting handle (42) is connected with the annular part (41), and the other end of the adjusting handle extends to the outer side of the valve body (10).

7. The regulator valve according to claim 6, further comprising a return spring (60) connecting the valve body (10) and an end of the regulator handle (42) located outside the valve body (10) to continuously apply a force to the regulator handle (42) capable of withdrawing the regulating ends (311) of the plurality of regulator blades (30) from the valve hole (11).

8. A regulating valve according to claim 6, wherein the chamber wall of the annular chamber (12) is in sliding engagement with the outer rim (221) of the annular portion (41) to define the axis of rotation of the annular portion (41).

9. The regulator valve according to claim 1, further comprising an actuator (70), said actuator (70) being coupled to said valve body (10) and being capable of driving said regulating member (40) to rotate said plurality of regulating blades (30).