Axial flow pressure regulating valve

Abstract

The present disclosure relates to the field of valve technology, and in particular to an axial flow pressure regulating valve. It includes a valve body, a rectifying member and a collar; the rectifying member and the collar are both arranged in the valve body, the collar is an elastic structure, and the collar is sleeved on the outer periphery of the rectifying member; a controller and a control channel are also provided, one end of the control channel is connected to the controller, and the other end of the control channel is connected to the valve body, and the controller and the control channel are used to apply control pressure to the collar. When the pressure regulating valve is in the closed state, the collar is tightly attached to the rectifying member, and a gap is provided between the collar and the valve body; when the pressure regulating valve is in the open state, a gap is provided between the collar and the rectifying member. Through the above-mentioned arrangement, the present disclosure provides an axial flow pressure regulating valve, which is only composed of a valve body, a rectifying member and a collar, and has a simple structure, a small size and a light weight.

Description

Technical Field

[0001] The present disclosure relates to the field of valve technology, and in particular to an axial flow pressure regulating valve. Background Art

[0002] A pressure regulating valve is a device for controlling the pressure of a medium in a process pipeline. In the prior art, a traditional pressure regulating valve is usually complex in structure and high in cost. Utility Model Content

[0003] In order to solve the above technical problems, the present disclosure provides an axial flow pressure regulating valve.

[0004] The present disclosure provides an axial flow pressure regulating valve, comprising a valve body, a rectifying member and a collar;

[0005] The rectifying member and the collar are both arranged in the valve body, the collar is an elastic structure, and the collar is sleeved on the outer periphery of the rectifying member;

[0006] A controller and a control channel are also provided. One end of the control channel is communicated with the controller, and the other end of the control channel is communicated with the valve body. The controller and the control channel are used to apply control pressure to the sleeve.

[0007] When the pressure regulating valve is in a closed state, the collar is tightly attached to the rectifying member, and a gap is provided between the collar and the valve body;

[0008] When the pressure regulating valve is in an open state, a gap is provided between the collar and the rectifying member.

[0009] Optionally, in the radial direction of the fairing, the diameter of the collar is smaller than the diameter of the fairing.

[0010] Optionally, the rectifying element comprises a first rectifying grid and a second rectifying grid, and the first rectifying grid and the second rectifying grid are connected via a fixing element.

[0011] Optionally, the fixing member includes a bolt and a rectifying nut, the first rectifying grid and the second rectifying grid are both provided with a center hole, the bolt passes through the center hole, and the rectifying nut is installed at one end of the bolt extending out of the second rectifying grid.

[0012] Optionally, a plurality of reinforcing ribs are provided on the outer wall of the collar.

[0013] Optionally, a first sealing member is provided on the inner wall of the valve body, a first sealing groove is provided on the outer wall of the sleeve ring, and the first sealing member is clamped in the first sealing groove.

[0014] Optionally, a second sealing groove is provided on a side of the rectifying nut close to the bolt, and a second sealing member is provided in the second sealing groove.

[0015] Optionally, the first rectifying grid is provided with a plurality of inclined slots for gas to pass through, and the inclined slots are arranged along the circumference of the first rectifying grid.

[0016] Optionally, the second rectifying grid is also provided with a plurality of inclined slots for gas to pass through, and the inclined slots are arranged along the circumference of the second rectifying grid.

[0017] Optionally, a gasket is further included, and the gasket is arranged between the head of the bolt and the first rectifying grid.

[0018] Compared with the prior art, the technical solution provided by the embodiments of the present disclosure has the following advantages:

[0019] The present disclosure provides an axial flow pressure regulating valve. The valve comprises a valve body, a rectifying member and a collar, wherein the collar is sleeved on the outer periphery of the rectifying member, and the entirety formed by the collar and the rectifying member is installed in the valve body. In addition, there are a controller and a control flow channel, wherein one end of the control flow channel is connected to the controller, and the other end of the control flow channel is connected to the valve body, and the controller and the control flow channel are used to apply a control pressure to the collar. When the pressure regulating valve needs to be closed, the controller controls the gas to enter the control flow channel, and the pressure of the gas acts evenly on the outer surface of the collar. At this time, the pressure on the outer surface of the collar is greater than the pressure on the inner surface of the collar. Due to the effect of the pressure difference, the collar will fit tightly on the rectifying member, and the pressure regulating valve is closed, and the gas cannot pass from the inlet of the valve through the rectifying member and the collar to the outlet. When the pressure regulating valve needs to be opened, the controller continues to control the pressure on the outer surface of the collar to be less than the pressure on the inner surface of the collar. At this time, due to the effect of the pressure difference, the collar will separate from the rectifying member, so that there is a gap between the collar and the rectifying member, and the pressure regulating valve is opened, and the gas can pass from the inlet of the valve through the rectifying member and the collar to the outlet of the valve. Through the above arrangement, the present disclosure provides an axial flow pressure regulating valve, which is only composed of a valve body, a rectifying member and a sleeve ring, and has a simple structure, a small size and a light weight. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0022] Figure 1 This is an overall structural diagram of the axial flow pressure regulating valve according to an embodiment of the present disclosure;

[0023] Figure 2It is a cross-sectional view of the axial flow pressure regulating valve according to the embodiment of the present disclosure;

[0024] Figure 3 It is a structural schematic diagram of the sleeve according to the embodiment of the present disclosure;

[0025] Figure 4 This is a schematic diagram of the structure of the first rectifier grid according to an embodiment of the present disclosure.

[0026] Among them, 1. valve body; 11. first sealing member; 2. rectifying member; 21. first rectifying grid; 22. second rectifying grid; 3. collar; 31. reinforcing rib; 32. first sealing groove; 4. controller; 5. control flow channel; 6. fixing member; 61. bolt; 62. rectifying nut; 621. second sealing groove; 622. second sealing member; 7. gasket. DETAILED DESCRIPTION

[0027] In order to more clearly understand the above-mentioned objectives, features and advantages of the present disclosure, the scheme of the present disclosure will be further described below. It should be noted that the embodiments of the present disclosure and the features in the embodiments can be combined with each other without conflict.

[0028] In the following description, many specific details are set forth to facilitate a full understanding of the present disclosure, but the present disclosure may also be implemented in other ways different from those described herein; it is obvious that the embodiments in the specification are only part of the embodiments of the present disclosure, rather than all of the embodiments.

[0029] The present disclosure provides an axial flow pressure regulating valve, comprising a valve body 1, a rectifying member 2 and a collar 3. The rectifying member 2 and the collar 3 are both arranged in the valve body 1, and the collar 3 is an elastic structure, and the collar 3 is sleeved on the outer periphery of the rectifying member 2. A controller 4 and a control flow channel 5 are also provided, one end of the control flow channel 5 is connected to the controller 4, and the other end of the control flow channel 5 is connected to the valve body 1, and the controller 4 and the control flow channel 5 are used to apply control pressure to the collar 3.

[0030] When the pressure regulating valve is in a closed state, the collar 3 is tightly attached to the rectifying member 2 , and a gap is provided between the collar 3 and the valve body 1 .

[0031] When the pressure regulating valve is in the open state, a gap is provided between the collar 3 and the rectifying member 2 .

[0032] like Figures 1 to 4 As shown, the present disclosure provides an axial flow pressure regulating valve, which includes a valve body 1, a rectifying member 2 and a collar 3, wherein the collar 3 is sleeved on the outer periphery of the rectifying member 2, and the collar 3 and the rectifying member 2 are integrally installed in the valve body 1. In addition, there are a controller 4 and a control flow channel 5, one end of the control flow channel 5 is connected to the controller 4, and the other end of the control flow channel 5 is connected to the valve body 1, and the controller 4 and the control flow channel 5 are used to apply control pressure to the collar 3.

[0033] When the pressure regulating valve needs to be closed, the controller 4 controls the gas to enter the control flow channel 5, and the pressure of the gas acts evenly on the outer surface of the collar 3. At this time, the pressure on the outer surface of the collar 3 is greater than the pressure on the inner surface of the collar 3. Due to the pressure difference, the collar 3 will fit tightly on the rectifying member 2, the pressure regulating valve is closed, and the gas cannot pass from the inlet of the valve through the rectifying member 2 and the collar 3 to the outlet.

[0034] When the pressure regulating valve needs to be opened, the controller 4 continues to control the pressure on the outer surface of the collar 3 to be lower than the pressure on the inner surface of the collar 3. At this time, due to the pressure difference, the collar 3 will separate from the rectifying component 2, so that there is a gap between the collar 3 and the rectifying component 2. The pressure regulating valve opens, and the gas can pass from the inlet of the valve through the rectifying component 2 and the collar 3 to the outlet of the valve.

[0035] Through the above arrangement, this embodiment provides an axial flow pressure regulating valve, which is only composed of a valve body 1, a rectifying member 2 and a sleeve ring 3, and has a simple structure, a small size and a light weight.

[0036] Further, in the radial direction of the fairing 2, the diameter of the collar 3 is smaller than the diameter of the fairing 2. In the present embodiment, in the radial direction of the fairing 2, the diameter of the collar 3 is smaller than the diameter of the fairing 2. When the collar 3 and the fairing 2 are combined together, since the diameter of the fairing 2 is slightly larger than the diameter of the collar 3, the fairing 2 and the collar 3 will have an interference fit, and due to the elasticity of the collar 3, the collar 3 will fit tightly on the side wall of the fairing 2, forming a seal on the fairing 2.

[0037] Specifically, the rectifying member 2 includes a first rectifying grid 21 and a second rectifying grid 22, and the first rectifying grid 21 and the second rectifying grid 22 are connected by a fixing member 6. The rectifying member 2 in this embodiment includes a first rectifying grid 21 and a second rectifying grid 22, and the first rectifying grid 21 can evenly apply the pressure at the valve inlet to the sleeve ring 3, and then when the pressure flows to the valve outlet, the pressure at the valve outlet will also be relatively uniform, thereby reducing the noise and cavitation caused by uneven airflow.

[0038] In order to connect the first rectifying grid 21 and the second rectifying grid 22, a fixing member 6 is provided, and the fixing member 6 includes a bolt 61 and a rectifying nut 62. The first rectifying grid 21 and the second rectifying grid 22 are both provided with a central hole, and the bolt 61 passes through the central hole, and the rectifying nut 62 is installed at an end of the bolt 61 extending out of the second rectifying grid 22. Through the arrangement of the bolt 61 and the rectifying nut 62, the first rectifying grid 21 and the second rectifying grid 22 in this embodiment can be integrated, and thus installed together in the valve body 1.

[0039] Furthermore, if Figure 3As shown, a plurality of reinforcing ribs 31 are provided on the outer wall of the collar 3. The reinforcing ribs 31 are evenly distributed on the outer surface of the collar 3 and along the radial direction of the collar 3, which can increase the strength of the collar 3, effectively improve the initial sealing performance, and avoid the wear of the collar 3 by the valve body 1.

[0040] In this embodiment, a first sealing member 11 is disposed on the inner wall of the valve body 1, a first sealing groove 32 is disposed on the outer wall of the collar 3, and the first sealing member 11 is clamped in the first sealing groove 32. Figure 2 As shown, in this embodiment, a first seal 11 is provided on the inner wall of the valve body 1, and the first seal 11 is arranged along the circumference of the inner wall of the valve body 1. A first sealing groove 32 is provided on the outer wall of the collar 3, and the first sealing groove 32 is arranged along the circumference of the outer wall of the collar 3. The first seal 11 is embedded in the first sealing groove 32, and the pre-tightening force between the bolt 61 and the rectifying nut 62 can press the first seal 11 into the first sealing groove 32. Thus, the seal between the rectifying member 2 and the collar 3 is achieved. In order to achieve sealing, the width of the first seal 11 can be slightly larger than the width of the first sealing groove 32, so as to achieve an interference fit.

[0041] In addition, a second sealing groove 621 is provided on a side of the rectifying nut 62 close to the bolt 61, and a second sealing member 622 is provided in the second sealing groove 621. Figure 2 As shown, a second sealing groove 621 is provided on one side surface of the rectifying nut 62, and the second sealing groove 621 is arranged along the circumferential direction of the rectifying nut 62. A second sealing member 622 is provided in the second sealing groove 621. The second sealing member 622 is an elastic member embedded in the second sealing groove 621, so as to realize the sealing of the rectifying nut 62 and the second rectifying grid 22 by utilizing the pre-tightening force of the bolt 61.

[0042] Furthermore, a plurality of inclined grooves for gas to pass through are provided on the first rectifying grid 21, and the inclined grooves are arranged along the circumference of the first rectifying grid 21. By providing a plurality of inclined grooves, the pressure at the valve inlet can be evenly applied to the collar 3.

[0043] Furthermore, the second rectifying grid 22 is also provided with a plurality of inclined slots for gas to pass through, and the inclined slots are arranged along the circumference of the second rectifying grid 22. Through the arrangement of the plurality of inclined slots, the fluid in the collar 3 can be decomposed into a plurality of streams, and the total energy in the collar 3 can be decomposed into a plurality of small energy units, and the partial energies can be offset each other after flowing through the second rectifying grid 22, thereby reducing cavitation and noise phenomena.

[0044] In addition, a gasket 7 is included, and the gasket 7 is arranged between the head of the bolt 61 and the first rectifying grid 21. In this embodiment, a groove is also arranged on the gasket 7, through which the gas at the valve inlet can enter the center of the rectifying element 2, so as to avoid the pressure difference between the center of the rectifying element 2 and the pressure at the valve inlet and outlet, thereby damaging the rectifying element 2.

[0045] It should be noted that, in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0046] The above description is only a specific embodiment of the present disclosure, so that those skilled in the art can understand or implement the present disclosure. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present disclosure. Therefore, the present disclosure will not be limited to the embodiments described herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An axial flow pressure regulating valve, characterized in that: It comprises a valve body (1), a rectifying part (2) and a sleeve ring (3); The rectifying member (2) and the collar (3) are both arranged in the valve body (1); the collar (3) is an elastic structure, and the collar (3) is sleeved on the outer periphery of the rectifying member (2); A controller (4) and a control channel (5) are also provided, one end of the control channel (5) is in communication with the controller (4), and the other end of the control channel (5) is in communication with the valve body (1), and the controller (4) and the control channel (5) are used to apply a control pressure to the collar (3); When the pressure regulating valve is in a closed state, the collar (3) is tightly attached to the rectifying member (2), and a gap is provided between the collar (3) and the valve body (1); When the pressure regulating valve is in an open state, a gap is provided between the collar (3) and the rectifying member (2).

2. The axial flow pressure regulating valve according to claim 1, characterized in that: In the radial direction of the fairing (2), the diameter of the collar (3) is smaller than the diameter of the fairing (2).

3. The axial flow pressure regulating valve according to claim 1, characterized in that: The rectifying element (2) comprises a first rectifying grid (21) and a second rectifying grid (22), wherein the first rectifying grid (21) and the second rectifying grid (22) are connected via a fixing element (6).

4. The axial flow pressure regulating valve according to claim 3, characterized in that: The fixing member (6) comprises a bolt (61) and a rectifying nut (62); the first rectifying grid (21) and the second rectifying grid (22) are both provided with a central hole; the bolt (61) passes through the central hole; and the rectifying nut (62) is mounted on an end of the bolt (61) extending out of the second rectifying grid (22).

5. The axial flow pressure regulating valve according to claim 1, characterized in that: A plurality of reinforcing ribs (31) are provided on the outer wall of the collar (3).

6. The axial flow pressure regulating valve according to claim 1, characterized in that: A first sealing member (11) is provided on the inner wall of the valve body (1), a first sealing groove (32) is provided on the outer wall of the collar (3), and the first sealing member (11) is clamped in the first sealing groove (32).

7. The axial flow pressure regulating valve according to claim 4, characterized in that: A second sealing groove (621) is provided on a side of the rectifying nut (62) close to the bolt (61), and a second sealing member (622) is provided in the second sealing groove (621).

8. The axial flow pressure regulating valve according to claim 3, characterized in that: The first rectifying grid (21) is provided with a plurality of inclined slots for gas to pass through, and the inclined slots are arranged along the circumference of the first rectifying grid (21).

9. The axial flow pressure regulating valve according to claim 3, characterized in that: The second rectifying grid (22) is also provided with a plurality of inclined slots for gas to pass through, and the inclined slots are arranged along the circumference of the second rectifying grid (22).

10. The axial flow pressure regulating valve according to claim 4, characterized in that: It also includes a gasket (7), which is arranged between the head of the bolt (61) and the first rectifying grid (21).

Images