Throttle controller for valve

Abstract

The utility model belongs to the technical field of pipeline transportation, and particularly relates to a throttling controller for a valve. The throttling controller comprises a body fixedly arranged at the end of the valve clack, the body is constructed to be matched with a valve seat of the valve, a throttling channel is formed in the body, and when the valve is in an open state, fluid in the valve body passes through the throttling channel and flows through the throttling channel. Therefore, the sealing positions of the valve clack and the valve seat are prevented from being scoured by fluid. The throttling controller can protect the valve clack and the valve seat and prevent fluid from scouring the valve clack and the valve seat, so that the valve clack and the valve seat are prevented from being damaged, and the service life of the valve is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of pipeline transportation, and in particular relates to a throttling controller for a valve. Background Art

[0002] The valve sleeve type drain valve used in natural gas extraction is mainly used for draining after the separator. The valve sleeve type drain valve is evolved from the gate. The valve stem is driven by the rotation of the hand wheel. The up and down movement of the valve stem drives the valve disc to move up and down, and the distance between the valve disc and the valve seat is changed to achieve the purpose of opening and closing. However, the valve sleeve type drain valve has the problem that the valve core is easily damaged. Once the valve core is damaged, the valve sleeve type drain valve loses its shut-off and drain control functions.

[0003] The opening, closing, and throttling discharge of the valve sleeve type sewage valve are all achieved by changing the distance between the valve disc and the valve seat. When the valve sleeve type sewage valve is opened, the valve disc of the valve sleeve type sewage valve leaves the valve seat. When the valve sleeve type sewage valve is closed, the valve disc hard seal is pressed on the valve seat to form a hard seal, and at the same time, the soft seal (polytetrafluoroethylene pad) embedded in the valve disc is pressed against the end face of the valve seat to form a second seal. When the valve sleeve sewage valve is opened to control the discharge, the valve disc is driven up and down by the valve stem to control the distance between the valve disc and the valve seat to control the flow rate of the discharged fluid (liquid, solid impurities).

[0004] Therefore, the fluid (liquid, solid impurities, etc.) in the pipeline must flow through the valve disc and valve seat when passing through the valve sleeve type sewage valve. When the fluid flows through the valve disc and valve seat, there is a pressure difference between the upstream and downstream, and the fluid flow rate increases. The high-speed fluid (liquid, solid impurities) will impact the valve disc and valve seat, and eventually damage the valve disc and valve seat, resulting in a loose seal between the valve disc and the valve seat, and the valve sleeve type sewage valve loses its shut-off function. The only option is to replace a new valve. The cost of replacing the valve equipment is high and the safety risk of natural gas leakage is high. Utility Model Content

[0005] In view of the technical problems mentioned above, the utility model aims to provide a throttling controller for a valve, which can prevent the fluid from scouring the valve disc and the valve seat, thereby avoiding failure of the sewage valve and reducing maintenance costs.

[0006] According to the utility model, a throttle controller for a valve is provided, wherein the valve comprises a valve body and a valve flap, the valve flap cooperates with a valve seat of the valve body to realize the opening and closing of the valve, the throttle controller for the valve comprises a body fixedly arranged at the end of the valve flap, the body is configured to be adapted to the valve seat of the valve,

[0007] A throttling channel is provided on the body. When the valve is in an open state, the fluid in the valve body passes through the throttling channel, thereby preventing the fluid from scouring the sealing position of the valve flap and the valve seat.

[0008] In a specific embodiment, the body is configured to be cylindrical, and the outer wall of the body is adapted to the inner wall of the valve seat.

[0009] In a specific embodiment, the throttling channel is arranged on the side of the body, and a water inlet cavity is arranged at the lower end of the body, and the water inlet cavity is communicated with the throttling channel.

[0010] In a specific embodiment, a plurality of the throttling channels are evenly arranged on the side surface of the body along the axial direction.

[0011] In a specific embodiment, the body is coaxially fixed to the lower end of the valve flap, and the total opening of the throttling channel can be adjusted by controlling the opening of the valve flap relative to the valve seat, thereby adjusting the flow rate.

[0012] In a specific embodiment, a plurality of the throttling channels are evenly arranged on the side surface of the body along the circumferential direction.

[0013] In a specific embodiment, the body is connected to the valve flap by bolt connection.

[0014] In a specific embodiment, a mounting hole for mounting a bolt is provided at the upper end of the body.

[0015] In a specific embodiment, the mounting hole is communicated with the water inlet cavity at the lower end of the body.

[0016] In a specific embodiment, the outer wall of the body is movably sealed with the inner wall of the valve seat.

[0017] Compared with the prior art, the advantages of this application are as follows:

[0018] The utility model provides a throttle controller for a valve, which is arranged at the end of the valve disc. When the valve disc is away from the valve seat, the valve is opened and the fluid can pass through the valve. In the process of the fluid passing through the valve, the fluid can only flow through the gap between the valve disc and the valve seat. Since the throttle controller of the utility model is arranged between the valve disc and the valve seat, the throttle controller can protect the valve disc and the valve seat, prevent the fluid from scouring the valve disc and the valve seat, thereby avoiding damage to the valve disc and the valve seat and extending the service life of the valve.

[0019] During routine maintenance, the throttling controller only needs to be repaired or replaced regularly, thereby reducing costs.

[0020] The throttling controller comprises a body and a throttling channel arranged on the body. The opening of the throttling channel on the body can be controlled by controlling the opening of the valve flap relative to the valve seat, thereby achieving the purpose of controlling the flow rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The utility model will be described below with reference to the accompanying drawings.

[0022] Figure 1 A schematic diagram showing an embodiment of a throttling controller according to the utility model is shown;

[0023] Figure 2 A schematic diagram showing an embodiment of a throttling controller according to the utility model installed in a valve;

[0024] Figure 3 A schematic diagram showing the structure of a throttling channel of a throttling controller according to the utility model is shown;

[0025] Figure 4 Shows Figure 3 Schematic diagram of the throttling controller installed in the valve.

[0026] In the figure: 100, throttle controller; 1, body; 2, throttle channel; 3, mounting hole; 4, water inlet chamber;

[0027] 10. Valve; 11. Valve disc; 12. Valve body; 121. Valve seat; 122. Liquid inlet channel; 123. Liquid outlet channel; 13. Valve core.

[0028] In the present application, all drawings are schematic drawings, which are only used to illustrate the principles of the present utility model and are not drawn according to the actual scale. DETAILED DESCRIPTION

[0029] The utility model is introduced below by means of the accompanying drawings.

[0030] It should be noted that the directional terms or qualifiers "upper", "lower", "left", "right", etc. used in this application are all relative to the referenced Figure 2 They are not intended to define the absolute positions of the components involved, but may vary depending on the specific circumstances.

[0031] According to the utility model, a throttling controller 100 is provided, such as Figure 2 As shown, the throttle controller 100 is installed in the valve 10 .

[0032] In this embodiment, the valve 10 is a valve sleeve type drain valve. Figure 2 As shown, the valve 10 includes a valve body 12, which serves as the outer shell of the valve 10. A liquid inlet channel 122 is horizontally arranged on the left side of the valve body 12, and a liquid outlet channel 123 is horizontally arranged on the right side of the valve body 12. A valve seat 121 is arranged in the middle of the valve body 12, and one axial end of the valve seat 121 is connected to the liquid inlet channel 122, and the other axial end of the valve seat 121 is connected to the liquid outlet channel 123.

[0033] In this embodiment, the central axis of the valve seat 121 is arranged in the vertical direction, that is, perpendicular to the liquid inlet flow channel 122 and the liquid outlet flow channel 123. The axial lower end of the valve seat 121 is connected to the liquid inlet flow channel 122, and the axial upper end of the valve seat 121 is connected to the liquid outlet flow channel 123. After the fluid enters the liquid inlet flow channel 122, it can only enter the liquid outlet flow channel 123 through the valve seat 121.

[0034] A valve core 13 is vertically arranged in the middle of the valve body 12. The central axis of the valve core 13 coincides with the central axis of the valve seat 121, and the lower end of the valve core 13 extends into the interior of the valve body 12. A valve flap 11 is coaxially fixedly arranged at the lower end of the valve core 13. The valve core 13 can move up and down in the vertical direction relative to the valve body 12, thereby driving the valve flap 11 to move up and down relative to the valve seat 121. When the valve flap 11 moves to abut against the upper end of the valve seat 121, the valve flap 11 can seal the valve seat 121, so that the fluid in the inlet flow channel 122 cannot enter the outlet flow channel 123 through the valve seat 121.

[0035] In a preferred embodiment, a sealing member is further provided on the valve flap 11 for strengthening the sealing with the valve seat 121. In this embodiment, the sealing member is made of a soft sealing material, such as polytetrafluoroethylene.

[0036] like Figure 1 As shown, the throttle controller 100 includes a body 1. In this embodiment, the outer shape of the body 1 is configured as a cylindrical shape, and the outer diameter D of the body 1 is adapted to the diameter of the valve seat 121.

[0037] Specifically, Figure 1 and Figure 2 As shown, the upper end of the body 1 is fixedly connected to the lower end of the valve disc 11, and the body 1 can move up and down following the valve disc 11. At the same time, the body 1 can pass through the valve seat 121. The lower end of the body 1 passes through the valve seat 121 and is located in the liquid inlet channel 122 at the lower end of the valve seat 121, and the upper end of the body 1 is located in the liquid outlet channel 123 at the upper end of the valve seat 121.

[0038] In a specific embodiment, the body 1 and the valve seat 121 are movably sealed, that is, there is no gap between the outer wall of the body 1 and the valve seat 121 , and the fluid cannot pass between the outer wall of the body 1 and the valve seat 121 .

[0039] According to the utility model, a throttling channel 2 is provided on the main body 1. When the valve 10 is closed, the valve flap 11 seals the upper end of the valve seat 121. When the valve 10 is opened, the main body 1 moves upward relative to the valve seat 121 following the valve flap 11, the valve flap 11 contacts the seal of the valve seat 121, and the throttling channel 2 on the main body 1 connects the inlet flow channel 122 and the outlet flow channel 123, so that the fluid in the inlet flow channel 122 can flow to the outlet flow channel 123 without passing through the contact surface between the valve flap 11 and the valve seat 121, thereby avoiding the possibility of the valve flap 11 and the valve seat 121 being damaged by the fluid. By controlling the height of the valve flap 11 relative to the valve seat 121, the opening of the throttling channel 2 can be controlled, thereby achieving the purpose of controlling the flow rate.

[0040] In a specific embodiment, Figure 1 As shown, a water inlet chamber 4 is provided at the lower part of the body 1, and a throttling channel 2 is provided on the side of the body 1, and the water inlet chamber 4 connects the liquid inlet channel 122 with the throttling channel 2. Under this arrangement of the present embodiment, during the opening of the valve 10, the valve flap 11 drives the body 1 to move upward relative to the valve seat 121 until at least part of the throttling channel 2 moves to the top of the valve seat 121, at which time the throttling channel 2 is connected with the liquid outlet channel 123, so that the fluid in the liquid inlet channel 122 can pass through the water inlet chamber 4 and the throttling channel 2 in sequence, and finally flow to the liquid outlet channel 123. Since the water inlet chamber 4 is located inside the body 1, the fluid will not directly contact the contact surface of the valve flap 11 and the valve seat 121 during the process of flowing from the liquid inlet channel 122 to the liquid outlet channel 123, thereby avoiding the failure of the seal between the valve flap 11 and the valve seat 121.

[0041] In a specific embodiment, the water inlet chamber 4 is configured in a cylindrical shape, such as Figure 1 As shown, the arrangement of the water inlet chamber 4 makes the body 1 as a whole structured into a generally cylindrical shape with a closed upper end and an open lower end. The throttling channel 2 is arranged on the side of the body 1 and communicates with the water inlet chamber 4. Under this arrangement, the lower end of the body 1 is communicated with the liquid inlet channel 122 through the water inlet chamber 4, thereby preventing the fluid from flowing through the contact surface of the valve disc 11 and the valve seat 121.

[0042] In a preferred embodiment, Figure 3 and Figure 4 As shown, the shape of the throttling channel 2 is set to be an arc coaxial with the body 1. Under this setting, the throttling channel 2 has the characteristics of easy processing and large flow area. The size of the axial spacing between adjacent throttling channels 2 can be set according to the pitch of the valve screw (the valve core 13 with threads on the outer surface), ensuring that the throttling channel 2 will not overlap with the valve seat 121 when the screw rotates a corresponding number of turns, thereby preventing fluid impurities from directly scouring the valve seat 121 and causing damage to the valve seat 121.

[0043] In a specific embodiment, Figure 4 As shown, the valve core 13 is connected to the valve body 12 by a threaded connection, that is, the number of turns of the hand wheel is proportional to the distance of the axial movement of the valve core 13. Under this setting, the opening of the throttling channel 2 is controlled by the number of turns of the hand wheel, that is, the size of the throttling channel 2 that exceeds the valve seat 121 and communicates with the outlet flow channel 123 is related to the number of turns of the hand wheel.

[0044] In a preferred embodiment, a plurality of throttling channels 2 are evenly arranged on the side of the body 1 along the axial direction, and each throttling channel 2 is connected to the water inlet chamber 4. Under this arrangement, combined with the structure in which the valve core 13 moves upward during the opening of the valve 10, the purpose of accurately controlling the flow rate can be achieved. In a specific embodiment, if the hand wheel rotates one circle to expose one throttling channel 2, the hand wheel rotates three circles to expose two throttling channels 2, the hand wheel rotates five circles to expose three throttling channels 2, and so on, the purpose of accurately controlling the flow rate is achieved in this way.

[0045] It should be noted that the opening size of the throttling channel 2 corresponding to the number of revolutions of the hand wheel can be adjusted according to actual conditions, and the protection scope of the utility model is not limited to the embodiments given in the utility model.

[0046] In a preferred embodiment, a plurality of throttling channels 2 are evenly arranged on the side of the body 1 along the circumferential direction.

[0047] According to the present invention, the body 1 is connected to the valve flap 11 by bolt connection. Figure 1 and Figure 2 As shown, in a specific embodiment, a mounting hole 3 for mounting a bolt is provided at the upper end of the body 1, and the lower end of the mounting hole 3 is connected to the water inlet chamber 4. Under this arrangement, when the body 1 is mounted to the lower end of the valve disc 11, the bolt is passed through the water inlet chamber 4 and the mounting hole 3 from bottom to top, and is connected to the valve disc 11 or the valve core 13 through a thread, and finally the bolt head of the bolt abuts against the upper end wall of the water inlet chamber 4, and the body 1 is fixed to the lower end of the valve disc 11.

[0048] In a preferred embodiment, a sealing process is performed between the bolt and the mounting hole 3 to prevent the fluid from flowing between the bolt and the mounting hole 3 .

[0049] In a preferred embodiment, the sealing member on the valve flap 11 for sealing with the valve seat 121 is also fixed by the bolts. Specifically, the sealing member is located between the valve flap 11 and the body 1, and the bolts fix the body 1 and the valve flap 11 while also fixing the sealing member.

[0050] It should be noted that the structure of the valve 10 in this embodiment is only a schematic illustration and is not intended to limit the protection scope of the present invention. The throttle controller 100 of the present invention can be installed on various valves as long as the throttle controller 100 can ultimately prevent the fluid from directly scouring the valve flap and valve seat of the valve.

[0051] In the present invention, the valve flap 11 and the valve seat 121 control the opening and closing of the valve 10, and the opening of the throttling channel 2 of the throttling controller 100 controls the size of the flow rate. When the valve 10 is opened, the discharged fluid forms throttling at the throttling channel 2 of the throttling controller, and the fluid (liquid, solid impurities) will only impact and damage the throttling channel 2 of the throttling controller 100, and will not impact the valve flap 11 and the valve seat 121. The valve flap 11 and the valve seat 121 will not be damaged, and the structure of the valve 10 will not be damaged. Therefore, it is only necessary to regularly check the damage of the throttling channel 2 of the throttling controller 100, replace or repair the throttling controller 100, and there is no need to replace the valve 10 as a whole, which greatly reduces the cost of replacing valve equipment.

[0052] In the description of the present invention, "plurality" means two or more than two, unless otherwise clearly and specifically defined.

[0053] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0054] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0055] Finally, it should be noted that the above is only a preferred embodiment of the utility model and does not constitute any limitation to the utility model. Although the utility model is described in detail with reference to the aforementioned embodiments, it is still possible for a person skilled in the art to modify the technical solutions described in the aforementioned embodiments or to replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A throttling controller for a valve, the valve (10) comprising a valve body (12) and a valve flap (11), the valve flap (11) cooperates with a valve seat (121) of the valve body (12) to realize the opening and closing of the valve, characterized in that: The throttle controller for a valve comprises a body (1) fixedly arranged at the end of the valve flap (11), wherein the body (1) is configured to be matched with the valve seat (121) of the valve (10). A throttling channel (2) is provided on the body (1); when the valve (10) is in an open state, the fluid in the valve body (12) passes through the throttling channel (2), thereby preventing the fluid from scouring the sealing position of the valve flap (11) and the valve seat (121).

2. The throttle controller according to claim 1, characterized in that: The body (1) is configured to be cylindrical in shape, and the outer wall of the body (1) is adapted to the inner wall of the valve seat (121).

3. The throttle controller according to claim 2, characterized in that: The throttling channel (2) is arranged on the side of the main body (1), and a water inlet chamber (4) is arranged at the lower end of the main body (1), and the water inlet chamber (4) is communicated with the throttling channel (2).

4. The throttle controller according to claim 3, characterized in that: The plurality of throttling channels (2) are evenly arranged on the side surface of the body (1) along the axial direction.

5. The throttle controller according to claim 4, characterized in that: The body (1) is coaxially fixed to the lower end of the valve flap (11), and the total opening of the throttling channel (2) can be adjusted by controlling the opening of the valve flap (11) relative to the valve seat (121), thereby adjusting the flow rate.

6. The throttle controller according to any one of claims 3 to 5, characterized in that: The plurality of throttling channels (2) are evenly arranged on the side surface of the body (1) along the circumferential direction.

7. The throttle controller according to any one of claims 1 to 5, characterized in that: The body (1) is connected to the valve flap (11) by means of bolt connection.

8. The throttle controller according to claim 7, characterized in that: A mounting hole (3) for mounting a bolt is provided at the upper end of the body (1).

9. The throttle controller according to claim 8, characterized in that: The mounting hole (3) is in communication with the water inlet cavity (4) at the lower end of the body (1).

10. The throttle controller according to any one of claims 1 to 5, characterized in that: The outer wall of the body (1) is movably sealed with the inner wall of the valve seat (121).

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