Novel intelligent automatic-adjusting pressure-reducing pore plate

Abstract

The invention relates to the technical field of fluid control, in particular to a novel intelligent automatic adjusting pressure-reducing pore plate which comprises a pressure-reducing pore plate shell, a positioning plate, a bevel gear rotating disc, a pore diameter adjusting plate, a bevel gear, an electric control box and a pressure monitoring device, and a plurality of first sliding grooves are formed in the positioning plate; a plurality of second sliding grooves are formed in the conical tooth rotating disc. The aperture adjusting plate is arranged between the positioning plate and the bevel gear rotating disc, and the aperture adjusting plate is in sliding connection with the positioning plate and the bevel gear rotating disc; the bevel gear is meshed with the bevel gear turntable; the electric control box is arranged at the top of the decompression pore plate shell, and the bottom of the electric control box is fixedly connected with the bevel gear; and the pressure monitoring device is arranged on the outer surface of the decompression pore plate shell. Through the aperture adjusting plates which are uniformly and circumferentially distributed and the manual-automatic integrated electric control box, self-adaptive adjustment of the pipe network pressure is achieved, and meanwhile it is ensured that the adjusting action is smooth and reliable.

Description

Technical Field

[0001] This invention relates to the field of fluid control technology, and more specifically, to a novel intelligent automatic adjusting pressure reducing orifice plate. Background Technology

[0002] A pressure-reducing orifice plate is a throttling device used in fluid systems. It reduces the dynamic pressure of a liquid by installing an orifice plate with a specific orifice diameter in the pipeline. When fluid passes through the orifice plate, the flow cross-section suddenly narrows, increasing the flow velocity and decreasing the pressure, thus creating a pressure drop at the orifice plate. The design of a pressure-reducing orifice plate requires calculating the orifice diameter based on flow rate, pressure difference, and fluid properties to ensure stable and reliable pressure reduction performance. While it cannot precisely regulate pressure, it is suitable for applications requiring fixed pressure reduction and is often used in conjunction with other control valves.

[0003] Traditional pressure-reducing orifice plates in pipelines control outlet pressure by installing a stainless steel plate with a fixed orifice diameter in the pipeline. They cannot adjust the orifice diameter according to different flow rates, and the orifice diameter is pre-calculated, which is greatly affected by actual objective factors. Replacing the pressure-reducing orifice plate later is time-consuming and labor-intensive.

[0004] The existing adjustable pressure reducing orifice plate uses a stacked baffle mechanism for its orifice adjustment mechanism. Due to the structural limitations, the baffles are made of thin steel sheets, which have low strength and are easily deformed. If they fail, they can impact other equipment in the pipeline network and have serious consequences. Summary of the Invention

[0005] The purpose of this invention is to provide a novel intelligent automatic adjusting pressure-reducing orifice plate to improve the aforementioned problems. To achieve this purpose, the technical solution adopted by this invention is as follows:

[0006] This application provides a novel intelligent automatic adjusting pressure-reducing orifice plate, comprising: a pressure-reducing orifice plate housing, a positioning plate, a bevel gear turntable, an orifice diameter adjusting plate, a bevel gear, an electrical control box, and a pressure monitoring device. The positioning plate is provided with multiple first sliding grooves; the bevel gear turntable is provided with multiple second sliding grooves; the orifice diameter adjusting plate is disposed between the positioning plate and the bevel gear turntable, and is slidably connected to both the positioning plate and the bevel gear turntable; the bevel gear meshes with the bevel gear turntable; the electrical control box is disposed on the top of the pressure-reducing orifice plate housing, and its bottom is fixedly connected to the bevel gear; the pressure monitoring device is disposed on the outer surface of the pressure-reducing orifice plate housing.

[0007] Preferably, the positioning plate, the aperture adjustment plate, and the bevel gear turntable are disposed inside the housing of the pressure-reducing orifice plate, the aperture adjustment plate is evenly circumferentially arranged on the positioning plate, and the housing of the pressure-reducing orifice plate, the positioning plate, and the bevel gear turntable are all coaxially arranged.

[0008] Preferably, the positioning plate, the aperture adjustment plate, and the conical tooth turntable are arranged sequentially from the inlet side to the outlet side of the pressure reducing orifice plate, and the positioning plate is fixed to the inner wall of the outer shell of the pressure reducing orifice plate.

[0009] Optionally, the first slide grooves are spaced apart circumferentially along the positioning plate, and the plurality of first slide grooves are arranged at the same interval; the second slide grooves are spaced apart circumferentially along the bevel gear turntable, and the plurality of second slide grooves are arranged at the same interval; the number of first slide grooves, second slide grooves and the aperture adjusting plate are the same; the aperture adjusting plate is provided with a protruding slider, the slider is placed in the first slide groove and the second slide groove; the aperture adjusting plate is slidably connected to the positioning plate and the bevel gear turntable through the first slide groove and the second slide groove respectively.

[0010] Optionally, the bottom of the electrical control box is provided with a manual / automatic switching button, the output shaft is rotatably connected inside the electrical control box, the output shaft passes through the top of the electrical control box and is fixedly connected to a handle, the output shaft passes through the top of the pressure reducing plate housing and is fixedly connected to the bevel gear, and the output shaft drives the bevel gear turntable to rotate through the bevel gear.

[0011] Optionally, the electrical control box has a fixed frame inside, a drive motor is mounted on the top surface of the fixed frame, the output end of the drive motor passes through the fixed frame and is positioned downwards, the manual / automatic switching button passes through the bottom of the electrical control box and is positioned upwards by a rotating shaft, a gear set, a first rotating rod, a second rotating rod and the rotating shaft of the manual / automatic switching button are provided between the fixed frame and the bottom surface of the electrical control box, and the first rotating rod and the second rotating rod are rotatably connected to the bottom surface of the electrical control box respectively.

[0012] Optionally, the gears in the gear set are sleeved on the output shaft, the first rotating rod, the second rotating rod, the output end of the drive motor, and the rotating shaft of the manual / automatic switching button. The gears in the gear set mesh with each other, so that the output end of the drive motor can drive all the gears in the gear set to rotate synchronously.

[0013] Preferably, a spring is sleeved on the rotating shaft of the manual / automatic switching button, the top end of the spring is fixedly connected to the bottom surface of the fixing frame, and the bottom end of the spring is in contact with the top surface of the gear.

[0014] Preferably, the pressure monitoring device includes a pressure gauge and a pressure transmitter. The pressure gauge is connected to the outer surface of the pressure reducing orifice plate housing via a pipe, and the pressure transmitter is installed on the pipe.

[0015] Preferably, the pressure monitoring device is provided in two sets, and the two sets of pressure monitoring devices are respectively installed on the inlet side and the outlet side of the pressure reducing orifice plate.

[0016] The beneficial effects of this invention are as follows:

[0017] This invention utilizes a bevel gear-bevel gear turntable drive combined with a circumferentially distributed orifice adjustment plate design to achieve synchronous radial convergence or expansion movement of multiple orifice adjustment plates. This convergence adjustment method is compact and efficient, and can continuously and smoothly change the flow orifice diameter, providing excellent flow and pressure regulation characteristics. The orifice adjustment plates are made of stainless steel plates, and the thickness can be adjusted according to the pipeline pressure calculation. They are high in strength and corrosion resistant. Combined with optimized sliding groove guidance and necessary sealing design, the reliability of the orifice adjustment mechanism is fully guaranteed, and potential corrosion and jamming risks are effectively prevented.

[0018] Meanwhile, this invention monitors the pipeline pressure in real time through a pressure monitoring device, and remotely adjusts the orifice size of the pressure reducing orifice plate online according to the fluid pressure using an electrical control box to achieve adaptive pressure reduction. The device is equipped with a backup manual execution system to prevent misoperation, and can switch between manual and automatic modes to meet pressure reduction needs in different situations. It is more applicable and easier to adjust, ensuring that manual intervention can be performed through the backup system in case of power failure or electrical control failure, thus guaranteeing the basic functions of the system.

[0019] Other features and advantages of the invention will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing embodiments of the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures particularly pointed out in the written description, claims, and drawings. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the minimum aperture state of a novel intelligent automatic adjusting pressure reducing orifice plate as described in an embodiment of the present invention;

[0022] Figure 2 This is a schematic diagram of the maximum aperture state of a novel intelligent automatic pressure-reducing orifice plate as described in an embodiment of the present invention;

[0023] Figure 3 This is a rear view of a novel intelligent automatic adjusting pressure reducing orifice plate as described in an embodiment of the present invention;

[0024] Figure 4This is a schematic diagram of the internal component structure of the pressure relief orifice plate shell of a novel intelligent automatic adjusting pressure relief orifice plate as described in an embodiment of the present invention.

[0025] Figure 5 This is a schematic diagram of the aperture adjustment plate structure of a novel intelligent automatic pressure reducing orifice plate described in an embodiment of the present invention;

[0026] Figure 6 This is a schematic diagram of the first slide groove of a novel intelligent automatic adjusting pressure reducing orifice plate according to an embodiment of the present invention;

[0027] Figure 7 This is a schematic diagram of the internal structure of the electrical control box of a novel intelligent automatic adjusting pressure reducing orifice plate as described in an embodiment of the present invention;

[0028] Figure 8 for Figure 7 A magnified view of region A in the middle.

[0029] The markings in the diagram are: 1. Pressure reducing orifice plate housing; 101. Fixing block; 2. Positioning plate; 201. First slide groove; 3. Bevel gear turntable; 301. Second slide groove; 4. Orifice diameter adjustment plate; 401. Slider; 5. Bevel gear; 6. Electrical control box; 601. First gear; 602. Second gear; 603. Third gear; 604. Fourth gear; 605. Fifth gear; 606. Sixth gear; 607. Seventh gear; 608. Spring; 609. Fixing frame; 610. Drive motor; 611. First rotating rod; 612. Second rotating rod; 7. Handle; 8. Manual / automatic switching button; 9. Output shaft; 10. Pressure gauge; 11. Pressure transmitter. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0031] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, in the description of this invention, terms such as "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0032] Example 1:

[0033] like Figures 1 to 4 As shown, this embodiment provides a novel intelligent automatic adjusting pressure-reducing orifice plate, comprising: a pressure-reducing orifice plate housing 1, a positioning plate 2, a bevel gear turntable 3, an orifice diameter adjusting plate 4, a bevel gear 5, an electrical control box 6, and a pressure monitoring device. The positioning plate 2 is provided with multiple first sliding grooves 201; the bevel gear turntable 3 is provided with multiple second sliding grooves 301; the orifice diameter adjusting plate 4 is disposed between the positioning plate 2 and the bevel gear turntable 3, and is slidably connected to both the positioning plate 2 and the bevel gear turntable 3; the bevel gear 5 meshes with the bevel gear turntable 3; the electrical control box 6 is disposed on the top of the pressure-reducing orifice plate housing 1, and the bottom of the electrical control box 6 is fixedly connected to the bevel gear 5; the pressure monitoring device is disposed on the outer surface of the pressure-reducing orifice plate housing 1.

[0034] like Figures 1 to 4 As shown, the present invention utilizes the pressure monitoring device to monitor the pipeline pressure in real time. The electrical control box 6 controls the bevel gear 5 to drive the bevel gear turntable 3 to rotate. At this time, the orifice adjustment plate 4 moves with the bevel gear turntable 3 in the second slide groove 301 to achieve synchronous radial convergence or expansion, thereby adjusting the orifice size of the pressure reducing orifice plate and achieving the purpose of adjusting the pipeline pressure in real time according to the fluid pressure.

[0035] Example 2:

[0036] This embodiment is a further optimization based on Embodiment 1, specifically as follows: Figures 1 to 4 As shown, the positioning plate 2, the aperture adjustment plate 4, and the conical tooth turntable 3 are disposed inside the pressure reducing orifice plate housing 1. The aperture adjustment plate 4 is evenly arranged on the positioning plate 2. The pressure reducing orifice plate housing 1, the positioning plate 2, and the conical tooth turntable 3 are all coaxially arranged to ensure that the components are evenly stressed when fluid passes through.

[0037] Example 3:

[0038] This embodiment is a further optimization based on embodiment 2, specifically as follows: Figures 1 to 4As shown, the positioning plate 2, the orifice adjustment plate 4, and the conical tooth turntable 3 are arranged sequentially from the inlet side to the outlet side of the pressure reducing orifice plate. Multiple fixing blocks 101 are fixedly connected to the outer end of the positioning plate 2. Limiting blocks are provided on the fixing blocks 101. The outer end of the conical tooth turntable 3 is slidably connected to the limiting blocks. The positioning plate 2 is fixedly connected to the inner wall of the pressure reducing orifice plate shell 1, so that fluid can only pass through the pressure reducing hole.

[0039] Example 4:

[0040] This embodiment is a further optimization based on Embodiment 1, specifically as follows: Figures 4 to 6 As shown, the first slide groove 201 is arranged at intervals along the circumference of the positioning plate 2, and the plurality of first slide grooves 201 are arranged at the same intervals; the second slide groove 301 is arranged at intervals along the circumference of the bevel gear turntable 3, and the plurality of second slide grooves 301 are arranged at the same intervals. The number of first slide grooves 201, second slide grooves 301 and aperture adjusting plates 4 are the same. The aperture adjusting plate 4 is provided with a protruding slider 401, and the slider 401 is placed in the first slide groove 201 and the second slide groove 301. The aperture adjusting plate 4 is slidably connected to the positioning plate 2 and the bevel gear turntable 3 through the first slide groove 201 and the second slide groove 301, respectively.

[0041] Example 5:

[0042] This embodiment is a further optimization based on Embodiment 1, specifically as follows: Figure 1 and Figure 4 As shown, the bottom of the electrical control box 6 is provided with a manual / automatic switching button 8. The output shaft 9 is rotatably connected inside the electrical control box 6. The output shaft 9 passes through the top of the electrical control box 6 and is fixedly connected to a handle 7. The output shaft 9 passes through the top of the pressure reducing plate housing 1 and is fixedly connected to a bevel gear 5. The output shaft 9 drives the bevel gear turntable 3 to rotate through the bevel gear 5.

[0043] Example 6:

[0044] This embodiment is a further optimization based on embodiment 5, specifically as follows: Figure 7 and Figure 8 As shown, the electrical control box 6 has a fixed frame 609 inside, and a drive motor 610 is provided on the top surface of the fixed frame 609. The output end of the drive motor 610 passes through the fixed frame 609 and is set downwards. The manual / automatic switching button 8 passes through the bottom of the electrical control box 6 and is set upwards with a rotating shaft. A gear set, a first rotating rod 611, a second rotating rod 612 and the rotating shaft of the manual / automatic switching button 8 are provided between the fixed frame 609 and the bottom surface of the electrical control box 6. The first rotating rod 611 and the second rotating rod 612 are rotatably connected to the bottom surface of the electrical control box 6.

[0045] like Figure 7 and Figure 8 As shown, the present invention monitors the pipeline pressure in real time through the pressure monitoring device. The drive motor 610 has high torque and strong adjustment capability. It can remotely adjust the orifice size of the pressure reducing orifice plate according to the fluid pressure using the electric actuator 7 to achieve adaptive pressure reduction. The device is equipped with a backup manual execution system to prevent misoperation. The manual / automatic switching button 8 can meet the pressure reduction needs under different situations, making it more applicable and easier to adjust. It ensures that in case of power failure or electrical control failure, manual intervention can be performed through the backup system to guarantee the basic functions of the system.

[0046] Example 7:

[0047] This embodiment is a further optimization based on embodiment 6, specifically as follows: Figure 7 and Figure 8 As shown, the gear set includes a first gear 601, a second gear 602, a third gear 603, a fourth gear 604, a fifth gear 605, a sixth gear 606, and a seventh gear 607. The first gear 601 is sleeved on the output shaft 9. The second gear 602 and the third gear 603 are respectively sleeved on the first rotating rod 611, and the first gear 601 meshes with the second gear 602. The fourth gear 604 and the fifth gear 605 are respectively sleeved on the second rotating rod 612, and the third gear 603 meshes with the fourth gear 604. The manual / automatic switching button 8 passes through the bottom of the electrical control box 6 and is rotatably connected to the sixth gear 606. The fifth gear 605 meshes with the sixth gear 606. The seventh gear 607 is fixedly connected to the output end of the drive motor 610, and the sixth gear 606 meshes with the seventh gear 607.

[0048] When the aperture needs to be adjusted, the drive motor 610 inside the electrical control box 6 is started. The drive motor 610 drives the seventh gear 607 to rotate. Under meshing, the seventh gear 607 drives the sixth gear 606 to rotate. The fifth gear 605, which meshes with the sixth gear 606, drives the fourth gear 604 to rotate synchronously. At this time, the third gear 603, which meshes with the fourth gear 604, drives the second gear 602 to rotate. Finally, under the action of the second gear 602, the first gear 601 and the output shaft 9 can rotate. At this time, the bevel gear 5, which is fixed to the lower end of the output shaft 9, drives the bevel gear turntable 3, which meshes with it, to rotate. This causes the aperture adjustment plate 4 to move with the bevel gear turntable 3 in the second slide groove 301, realizing synchronous radial convergence or expansion, thereby adjusting the aperture size of the pressure reducing orifice plate.

[0049] Example 8:

[0050] This embodiment is a further optimization based on embodiment 7, specifically as follows: Figure 7 and Figure 8 As shown, a spring 608 is sleeved on the rotating shaft of the manual / automatic switching button 8. The top end of the spring 608 is fixedly connected to the bottom surface of the fixing frame 609, and the bottom end of the spring 608 is in contact with the top surface of the sixth gear 606.

[0051] like Figure 7 and Figure 8 As shown, the present invention can realize the decompression needs under different situations through the manual / automatic switching button 8. When it is necessary to switch to manual adjustment, simply press the manual / automatic switching button 8 at the bottom of the electrical control box 6 upward. The manual / automatic switching button 8 moves upward, driving the sixth gear 606 to disengage from the entire gear transmission mechanism. At this time, manually turning the handle 7 can drive the bevel gear turntable 3 to rotate, completing the manual adjustment. This ensures that in the event of power failure or electrical control failure, manual intervention can be performed through the backup system, guaranteeing the basic functions of the system.

[0052] Example 9:

[0053] This embodiment is a further optimization based on Embodiment 1, specifically as follows: Figure 7 As shown, the pressure monitoring device includes a pressure gauge 10 and a pressure transmitter 11. The pressure gauge 10 is connected to the outer surface of the pressure reducing orifice plate housing 1 through a pipe, and the pressure transmitter 11 is installed on the pipe.

[0054] Two sets of pressure monitoring devices are installed, one at the inlet and one at the outlet of the pressure-reducing orifice plate, respectively, to achieve real-time monitoring of pipeline pressure changes. The selection of pressure measuring points must reflect the true working pressure difference of the pressure-reducing orifice plate, providing effective feedback for pressure regulation.

[0055] Example 10:

[0056] This embodiment is a further optimization based on Embodiment 1. Specifically, all exposed components in this device are made of corrosion-resistant materials, such as 316L stainless steel, Babbitt metal, etc., depending on the fluid medium. The sliding / meshing surfaces are hardened, such as by nitriding, hard chrome plating, or by using wear-resistant coatings, to enhance corrosion resistance and wear resistance, ensuring that the device can still operate reliably for a long time in harsh fluid environments.

[0057] The aperture adjustment slider 4 is made of stainless steel plate, and the thickness can be adjusted according to the pipeline pressure. It has high strength and corrosion resistance, which fully ensures the reliability of the aperture adjustment mechanism.

[0058] Example 11:

[0059] This embodiment is a further optimization based on embodiment 7. Specifically, the present invention adopts DC24V non-polar two-bus power supply and communication technology, which significantly simplifies on-site wiring, improves construction efficiency and safety, and ensures reliable and stable remote communication control.

[0060] The remote monitoring system, such as a fire alarm control panel, building automation system, or dedicated controller, sends a digital signal containing the target pressure value or adjustment command to the electrical control box 6 via this bus. After receiving the command, the control unit in the electrical control box 6 calculates the deviation between the current pressure and the set target by combining the actual working pressure difference of the pressure reducing orifice plate monitored and uploaded in real time by the pressure monitoring device. Based on this, it generates a control command to drive the drive motor 610 to operate. The power is transmitted to the output shaft 9 through the gear set, and the bevel gear 5 fixed to the lower end of the output shaft 9 drives the bevel gear turntable 3 to rotate. This causes the orifice diameter adjustment plate 4, which is uniformly arranged circumferentially between the plate and the positioning plate 2, to move synchronously radially within the grooves of both plates. This precisely changes the size of the flow orifice diameter, forming a closed-loop feedback control. The adjustment continues until the pressure difference before and after the orifice plate stabilizes at the remotely set target value, realizing rapid, stable, and self-controlled adjustment of the pipeline pressure.

[0061] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention. In addition, the terms "first," "second," "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0062] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of these terms in this invention based on the specific circumstances.

[0063] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

[0064] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A novel intelligent automatic adjusting pressure-reducing orifice plate, characterized in that, include: Pressure reducing orifice plate housing (1); Positioning plate (2), wherein a plurality of first sliding grooves (201) are provided on the positioning plate (2); A bevel gear turntable (3) is provided with a plurality of second sliding grooves (301); Aperture adjustment plate (4) is disposed between the positioning plate (2) and the bevel gear turntable (3), and the aperture adjustment plate (4) is slidably connected to the positioning plate (2) and the bevel gear turntable (3) respectively; A bevel gear (5) meshes with the bevel gear turntable (3); An electrical control box (6) is located on the top of the pressure reducing orifice plate housing (1), and the bottom of the electrical control box (6) is fixedly connected to the bevel gear (5). A pressure monitoring device is disposed on the outer surface of the pressure relief orifice plate housing (1).

2. The novel intelligent automatic adjusting pressure reducing orifice plate according to claim 1, characterized in that: The positioning plate (2), the aperture adjustment plate (4) and the bevel gear turntable (3) are disposed inside the pressure relief plate housing (1). The aperture adjustment plate (4) is evenly arranged on the positioning plate (2). The pressure relief plate housing (1), the positioning plate (2) and the bevel gear turntable (3) are all coaxially arranged.

3. The novel intelligent automatic adjusting pressure reducing orifice plate according to claim 2, characterized in that: The positioning plate (2), the aperture adjustment plate (4), and the bevel gear turntable (3) are arranged sequentially from the inlet side to the outlet side of the pressure reducing orifice plate, and the positioning plate (2) is fixed to the inner wall of the outer shell (1) of the pressure reducing orifice plate.

4. The novel intelligent automatic adjusting pressure reducing orifice plate according to claim 1, characterized in that: The first slide groove (201) is arranged at intervals along the circumference of the positioning plate (2), and the plurality of first slide grooves (201) are arranged at the same intervals; the second slide groove (301) is arranged at intervals along the circumference of the bevel gear turntable (3), and the plurality of second slide grooves (301) are arranged at the same intervals. The number of first slide grooves (201), second slide grooves (301) and aperture adjustment plates (4) is the same. The aperture adjustment plates (4) are provided with protruding sliders (401). The sliders (401) are placed in the first slide grooves (201) and the second slide grooves (301). The aperture adjustment plates (4) are slidably connected to the positioning plate (2) and the bevel gear turntable (3) through the first slide grooves (201) and the second slide grooves (301), respectively.

5. The novel intelligent automatic adjusting pressure reducing orifice plate according to claim 1, characterized in that: The bottom of the electrical control box (6) is provided with a manual / automatic switching button (8). The output shaft (9) is rotatably connected inside the electrical control box (6). The output shaft (9) passes through the top of the electrical control box (6) and is fixedly connected to a handle (7). The output shaft (9) passes through the top of the pressure reducing plate housing (1) and is fixedly connected to a bevel gear (5). The output shaft (9) drives the bevel gear turntable (3) to rotate through the bevel gear (5).

6. The novel intelligent automatic adjusting pressure reducing orifice plate according to claim 5, characterized in that: The electrical control box (6) is equipped with a fixed frame (609) inside. A drive motor (610) is provided on the top surface of the fixed frame (609). The output end of the drive motor (610) passes through the fixed frame (609) and is set downward. The manual / automatic switching button (8) passes through the bottom of the electrical control box (6) and is set upward with a rotating shaft. A gear set, a first rotating rod (611), a second rotating rod (612) and the rotating shaft of the manual / automatic switching button (8) are provided between the fixed frame (609) and the bottom surface of the electrical control box (6). The first rotating rod (611) and the second rotating rod (612) are rotatably connected to the bottom surface of the electrical control box (6).

7. The novel intelligent automatic adjusting pressure reducing orifice plate according to claim 6, characterized in that: The gears in the gear set are sleeved on the output shaft (9), the first rotating rod (611), the second rotating rod (612), the output end of the drive motor (610), and the rotating shaft of the manual / automatic switching button (8). The gears in the gear set mesh with each other, so that the output end of the drive motor (610) can drive all the gears in the gear set to rotate synchronously.

8. The novel intelligent automatic adjusting pressure reducing orifice plate according to claim 7, characterized in that: A spring (608) is sleeved on the rotating shaft of the manual / automatic switching button (8). The top end of the spring (608) is fixedly connected to the bottom surface of the fixing frame (609), and the bottom end of the spring (608) is in contact with the top surface of the gear.

9. The novel intelligent automatic adjusting pressure reducing orifice plate according to claim 1, characterized in that: The pressure monitoring device includes a pressure gauge (10) and a pressure transmitter (11). The pressure gauge (10) is connected to the outer surface of the pressure reducing orifice plate housing (1) through a pipe, and the pressure transmitter (11) is installed on the pipe.

10. The novel intelligent automatic adjusting pressure reducing orifice plate according to claim 9, characterized in that: The pressure monitoring device is provided in two sets, which are respectively installed on the inlet side and the outlet side of the pressure reducing orifice plate.

Images