Adjustable pressure reducing and stabilizing valve

Abstract

The utility model discloses an adjustable pressure reducing and stabilizing valve, belongs to the technical field of pressure stabilizing valves, and solves the problem that the pressure reducing and stabilizing valve cannot meet the requirement of reducing pressure in a pipeline due to the fact that an operator is difficult to find the acting force without the help of other detection tools. Comprising a valve body, an inlet pipe communicated with the valve body and a plurality of outlet pipes, the inlet pipe can be arranged in an on-off mode, the outlet pipes are located on the same plane, the central axis of the inlet pipe is perpendicular to the plane where the outlet pipes are located, a switching piece for switching the outlet pipes to be communicated with the inlet pipe is arranged in the valve body, and the outlet pipes are used for communicating to conduct different levels of pressure reduction. The air pressure sensor is used for monitoring the air pressure of the inlet pipe in real time, different high-pressure states are judged through the multi-stage voltage comparison circuit, the controller automatically adjusts communication of the inlet pipe and the outlet pipe, air pressure balance is rapidly achieved, excessive pressure reduction is avoided, the step that an operator manually adjusts the air pressure threshold value is omitted, and the operation process is greatly simplified.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure-stabilizing valves, in particular to an adjustable pressure-reducing and pressure-stabilizing valve. Background Art

[0002] The pressure reducing and stabilizing valve is a valve that automatically adjusts fluid pressure and is widely used in industrial and civil fields, such as water supply and gas systems. It senses changes in downstream pressure through internal mechanical components such as springs and pistons, and automatically adjusts the degree of opening of the valve to maintain the preset output pressure. The valve body is the main body of the valve, which bears the fluid pressure; the valve seat and the valve disc cooperate to form a sealing surface to control the flow of fluid; the valve disc opens or closes the valve according to changes in downstream pressure; the spring maintains the preset pressure difference; the adjusting screw is used to set and adjust the output pressure. In addition, the pressure reducing and stabilizing valve may be equipped with additional functions such as pressure gauge interface, overpressure protection device and remote control interface to meet different application requirements. When selecting, it is necessary to consider the working pressure range, flow capacity and medium characteristics to ensure the reliable operation of the valve. At the same time, regular maintenance and inspection are the key to ensure its long-term stable operation.

[0003] In the prior art, the controllable air pressure of the pressure reducing and stabilizing valve is adjusted by adjusting the tightness of the spring compression. The operator needs to make adjustments in advance according to the tightness generated when the spring is compressed. However, the tightness of the spring is relatively vague. It is difficult for the operator to find out the size of the force without the help of other detection tools, which may result in the inability to achieve the pressure reduction in the pipeline by the pressure reducing and stabilizing valve.

[0004] Therefore, an adjustable pressure reducing and stabilizing valve is proposed to solve or alleviate the above problems. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and proposes an adjustable pressure reducing and stabilizing valve.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] An adjustable pressure reducing and stabilizing valve comprises a valve body, an inlet pipe connected to the valve body, and a plurality of outlet pipes, wherein the inlet pipe can be opened and closed, the plurality of outlet pipes are located on the same plane, and the central axis of the inlet pipe is arranged perpendicular to the plane where the plurality of outlet pipes are located, a switching member for switching the connection between the outlet pipes and the inlet pipe is arranged in the valve body, and the outlet pipes are used for connecting to achieve different levels of pressure reduction.

[0008] Preferably, the number of the outlet pipes is four, and the four outlet pipes include outlet pipe one, outlet pipe two, outlet pipe three, and outlet pipe four, and the diameters of outlet pipe one, outlet pipe two, outlet pipe three, and outlet pipe four are gradually reduced.

[0009] Preferably, the switching member is a valve ball, the rotation axis of the valve ball is the same as the central axis of the inlet pipe, and a channel connecting the outlet pipe and the inlet pipe is opened on the valve ball, the inlet aperture of the channel is the same as the diameter of the inlet pipe, and the outlet aperture of the channel is the same as the diameter of the outlet pipe.

[0010] Preferably, it also includes a valve cover fixed to the valve body by connecting bolts, a motor fixedly connected to the valve cover, an air pressure sensor arranged in the inlet pipe, and a controller, the air pressure sensor is coupled to the controller through a multi-stage comparison circuit, the controller is coupled to the motor, the output shaft of the motor passes through the valve cover and is fixedly connected to the valve ball, the inlet pipe is connected to a solenoid valve, and the solenoid valve is coupled to the controller.

[0011] Preferably, the multi-stage comparison circuit includes a primary voltage comparison circuit, a secondary voltage comparison circuit, a tertiary voltage comparison circuit, and a fourth voltage comparison circuit connected in parallel, and the primary voltage comparison circuit, the secondary voltage comparison circuit, the tertiary voltage comparison circuit, and the fourth voltage comparison circuit are all coupled to a controller.

[0012] Preferably, a connecting plane is formed on the valve ball, a connecting cylinder is fixedly connected to the connecting plane, and the output shaft of the motor is embedded in the connecting cylinder.

[0013] Preferably, a sealing sleeve is detachably connected to the valve cover and is sleeved between the motor and the valve cover.

[0014] The utility model has the following beneficial effects:

[0015] The utility model detects the air pressure in the inlet pipe through an air pressure sensor. When the air pressure is in different high pressure states, it can be judged through a multi-level voltage comparison circuit, and the controller controls the inlet pipe to be connected with the corresponding outlet pipe, thereby accelerating the adjustment of the air pressure therein to a balanced state instead of excessively reducing the air pressure in the inlet pipe. There is no need for an operator to manually adjust the air pressure threshold borne by the flow channel therein, thereby reducing the operating difficulty of the operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the valve ball in the utility model;

[0018] Figure 3 It is a structural block diagram of the air pressure sensor, multi-level voltage comparison circuit and controller in the utility model.

[0019] 1. Valve body; 2. Inlet pipe; 3. Outlet pipe 4; 4. Outlet pipe 3; 5. Outlet pipe 2; 6. Outlet pipe 1; 7. Valve cover; 8. Connecting bolts; 9. Sealing sleeve; 10. Motor; 11. Valve ball; 12. Inlet; 13. Outlet; 14. Connecting plane; 15. Connecting cylinder. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] An adjustable pressure reducing and stabilizing valve, such as Figure 1 As shown, it includes a valve body 1, an inlet pipe 2 connected to the valve body 1 and capable of being opened and closed, a plurality of outlet pipes, a valve cover 7 to which the valve body 1 is fixed by connecting bolts 8, a motor 10 fixedly connected to the valve cover 7, an air pressure sensor arranged in the inlet pipe 2, and a controller. The valve cover 7 is detachably connected with a sealing sleeve 9 which is sleeved between the motor 10 and the valve cover 7.

[0022] Several outlet pipes are located on the same plane, and the central axis of the inlet pipe 2 is arranged perpendicular to the plane where the several outlet pipes are located. A switching member for switching the connection between each outlet pipe and the inlet pipe 2 is arranged in the valve body 1, and the outlet pipes are used to connect for different levels of pressure reduction. The number of outlet pipes is four, and the four outlet pipes include outlet pipe one 6, outlet pipe two 5, outlet pipe three 4, and outlet pipe four 3. The diameters of outlet pipe one 6, outlet pipe two 5, outlet pipe three 4, and outlet pipe four 3 are gradually reduced.

[0023] like Figure 2 As shown, the switching member is a valve ball 11, the rotation axis of the valve ball 11 is the same as the central axis of the inlet pipe 2, and a channel connecting the outlet pipe and the inlet pipe 2 is opened on the valve ball 11, the aperture of the inlet 12 of the channel is the same as the diameter of the inlet pipe 2, the aperture of the outlet 13 of the channel is the same as the diameter of the outlet pipe 6, and a connecting plane 14 is opened on the valve ball 11, and a connecting cylinder 15 is fixedly connected to the connecting plane 14, and the output shaft of the motor 10 is embedded in the connecting cylinder 15.

[0024] like Figure 3 As shown, the multi-stage comparison circuit includes a primary voltage comparison circuit, a secondary voltage comparison circuit, a tertiary voltage comparison circuit, and a quaternary voltage comparison circuit connected in parallel, and the primary voltage comparison circuit, the secondary voltage comparison circuit, the tertiary voltage comparison circuit, and the quaternary voltage comparison circuit are all coupled to the controller, the primary voltage comparison circuit, the secondary voltage comparison circuit, the tertiary voltage comparison circuit, and the quaternary voltage comparison circuit are all voltage comparators, the air pressure sensor is coupled to the controller through the multi-stage comparison circuit, the controller is coupled to the motor 10, the output shaft of the motor 10 passes through the valve cover 7 and is fixedly connected to the valve ball 11, the inlet pipe 2 is connected to a solenoid valve, and the solenoid valve is coupled to the controller.

[0025] When the utility model is actually applied, the air pressure sensor in the inlet pipe 2 detects the air pressure therein, and compares it through the primary voltage comparison circuit, the secondary voltage comparison circuit, the tertiary voltage comparison circuit, and the quaternary voltage comparison circuit in the multi-level voltage comparison circuit, so as to determine whether any one of the primary voltage comparison circuit, the secondary voltage comparison circuit, the tertiary voltage comparison circuit, and the quaternary voltage comparison circuit meets the requirements, and then outputs the corresponding comparison signal to the controller, which controls the motor 10 to rotate, so that the output shaft of the motor 10 drives the valve ball 11 to rotate through the connecting tube 15 until the inlet 12 is connected to the corresponding outlet pipe. The diameters of the outlet pipes are different, so the pressure relief efficiency is also different.

[0026] If none of them meet the requirements, the controller will control the solenoid valve to block the inlet pipe 2.

[0027] In the above manner, the air pressure sensor can be used for detection, and there is no need for the operator to manually adjust the pressure relief threshold, so that the pressure reducing and stabilizing valve can be automatically adjusted without requiring the operator to have judgment experience.

[0028] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An adjustable pressure reducing and stabilizing valve, characterized in that: The invention comprises a valve body (1), an inlet pipe (2) connected to the valve body (1), and a plurality of outlet pipes, wherein the inlet pipe (2) can be set to be on and off, the plurality of outlet pipes are located on the same plane, and the central axis of the inlet pipe (2) is arranged perpendicular to the plane where the plurality of outlet pipes are located, and a switching member for switching the connection between each outlet pipe and the inlet pipe (2) is arranged in the valve body (1), and the outlet pipes are used to be connected to achieve different levels of pressure reduction.

2. The adjustable pressure reducing and stabilizing valve according to claim 1, characterized in that: The number of the outlet pipes is four, and the four outlet pipes include outlet pipe one (6), outlet pipe two (5), outlet pipe three (4), and outlet pipe four (3). The diameters of the outlet pipe one (6), outlet pipe two (5), outlet pipe three (4), and outlet pipe four (3) are gradually reduced.

3. The adjustable pressure reducing and stabilizing valve according to claim 2, characterized in that: The switching member is a valve ball (11), the rotation axis of the valve ball (11) is the same as the central axis of the inlet pipe (2), and a channel connecting the outlet pipe and the inlet pipe (2) is opened on the valve ball (11), the inlet (12) of the channel has the same diameter as the inlet pipe (2), and the outlet (13) of the channel has the same diameter as the outlet pipe (6).

4. The adjustable pressure reducing and stabilizing valve according to claim 3, characterized in that: It also includes a valve cover (7) fixed to the valve body (1) by connecting bolts (8), a motor (10) fixedly connected to the valve cover (7), an air pressure sensor arranged in the inlet pipe (2), and a controller, wherein the air pressure sensor is coupled to the controller through a multi-stage comparison circuit, the controller is coupled to the motor (10), the output shaft of the motor (10) passes through the valve cover (7) and is fixedly connected to the valve ball (11), the inlet pipe (2) is connected to a solenoid valve, and the solenoid valve is coupled to the controller.

5. The adjustable pressure reducing and stabilizing valve according to claim 4, characterized in that: The multi-stage comparison circuit includes a primary voltage comparison circuit, a secondary voltage comparison circuit, a tertiary voltage comparison circuit, and a fourth voltage comparison circuit connected in parallel, and the primary voltage comparison circuit, the secondary voltage comparison circuit, the tertiary voltage comparison circuit, and the fourth voltage comparison circuit are all coupled to a controller.

6. The adjustable pressure reducing and stabilizing valve according to claim 4, characterized in that: The valve ball (11) is provided with a connection plane (14), a connection cylinder (15) is fixedly connected to the connection plane (14), and the output shaft of the motor (10) is embedded in the connection cylinder (15).

7. The adjustable pressure reducing and stabilizing valve according to claim 6, characterized in that: The valve cover (7) is detachably connected to a sealing sleeve (9) sleeved between the motor (10) and the valve cover (7).

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