Quick-response pressure fine adjustment device

Abstract

The utility model discloses a quick-response pressure fine adjustment device, and belongs to the field of pressure fine adjustment devices.The quick-response pressure fine adjustment device comprises a valve seat and a valve element arranged in the valve seat, and the inlet end and the outlet end of the valve seat are provided with a first variable-diameter flange and a second variable-diameter flange respectively; the first variable-diameter flange and the second variable-diameter flange are connected through a lock bolt, and the valve element comprises a fixed valve plate fixedly installed in the inlet end of the valve seat and a closed valve plate rotationally installed in the valve seat and used for being matched with the fixed valve plate to adjust the opening degree of the valve. According to the quick-response pressure fine adjustment device, due to the fact that the combination of the servo motor and the driving mechanism is adopted, quick response and accurate adjustment of the material pressure can be achieved, meanwhile, high-precision fine adjustment of the material pressure can be achieved through real-time monitoring of the pressure sensor and accurate control of the servo motor, and the service life of the device is prolonged. And the high requirement on pressure stability in industrial production is met.

Description

Technical Field

[0001] The present application relates to the technical field of pressure fine-tuning devices, and in particular to a fast-response pressure fine-tuning device. Background Art

[0002] A pressure trimmer is a device that can fine-tune the pressure in a system or device as needed. It typically features high precision, high stability, and ease of operation, meeting pressure regulation requirements in a variety of complex operating conditions.

[0003] Pressure regulating devices, such as pressure regulating valves, are often installed on equipment requiring pressure regulation in industrial production. These valves are typically adjusted manually or electrically to change pressure by controlling the valve opening. However, during use, the pressure generated by these valves is unstable due to the kinetic energy of the gas or liquid flowing through them, making them ineffective in meeting the pressure stability requirements of industrial production.

[0004] Therefore, the present application provides a fast-response pressure fine-tuning device to solve the above-mentioned problems. Utility Model Content

[0005] The present application provides a fast-response pressure fine-tuning device, which aims to solve the problem in the background art that the existing pressure regulating device affects the pressure change when the material circulation generates kinetic energy and cannot provide stable pressure.

[0006] To achieve the above-mentioned objectives, the present application provides the following technical solution: a fast-response pressure fine-tuning device, comprising a valve seat and a valve core arranged in the valve seat.

[0007] The inlet end and the outlet end of the valve seat respectively have a first reducing flange and a second reducing flange, and the first reducing flange and the second reducing flange are both connected by a locking bolt.

[0008] The valve core includes a fixed valve plate fixedly installed in the inlet end of the valve seat and a closed valve plate rotatably installed in the valve seat for cooperating with the fixed valve plate to adjust the valve opening, and the side surface of the closed valve plate is provided with gear teeth.

[0009] A driving mechanism for driving the closed valve plate to rotate is provided inside the valve seat, and the driving mechanism includes a gear rod that moves longitudinally in the valve seat and engages with the gear teeth, a screw rod that passes through the center of the gear rod and is screwed to the gear rod, and a servo motor that is fixedly mounted on the valve seat and whose output shaft is connected to the end of the screw rod, wherein the gear rod is slidably connected to the inner wall of the valve seat.

[0010] A pressure sensor, connected to the servo motor signal, is fixedly mounted in the center of the fixed valve plate near the inlet. This combination of a servo motor and a drive mechanism enables rapid response and precise adjustment of material pressure. Furthermore, through real-time monitoring by the pressure sensor and precise control by the servo motor, high-precision fine-tuning of material pressure is possible, meeting the stringent pressure stability requirements of industrial production.

[0011] Preferably, the end of the screw away from the servo motor is rotatably connected to the inner wall of the valve seat through a sealing bearing, and the outer portion of the end of the screw close to the servo motor is sheathed with a sealing sleeve fixedly connected to the inner wall of the valve seat.

[0012] Preferably, a sealing ring is provided between the first reducing flange and the fixed valve plate, and between the second reducing flange and the closed valve plate.

[0013] Preferably, six valve holes distributed in a ring array along the axial direction are opened on the fixed valve plate, and through holes corresponding to the valve holes are opened on the closed valve plate.

[0014] Preferably, a sealing sheet is attached to one side of the fixed valve plate close to the closed valve plate, and the sealing sheet has six clamps distributed in a circular array on one side close to the fixed valve plate. A clamping groove corresponding to the clamp is provided on the fixed valve plate, and a clearance hole corresponding to the valve hole is also provided on the sealing sheet.

[0015] Preferably, the output end of the pressure sensor is connected to the input end of the servo motor and the input end of the external control center respectively, and the input end of the servo motor is also connected to the output end of the external control center.

[0016] This fast-response pressure fine-tuning device, due to the combination of a servo motor and a drive mechanism, can achieve rapid response and precise adjustment of material pressure. At the same time, through real-time monitoring of the pressure sensor and precise control of the servo motor, it can also achieve high-precision fine-tuning of material pressure, meeting the high requirements for pressure stability in industrial production.

[0017] The fast response pressure fine-tuning device can achieve fast response and fine-tuning of material pressure by continuously monitoring and adjusting the opening of the valve, ensuring that the pressure in the system or equipment is maintained within the set value range. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of a fast response pressure fine-tuning device;

[0019] Figure 2 A schematic diagram of a partially truncated structure of a fast-response pressure fine-tuning device;

[0020] Figure 3 A schematic diagram of the explosion structure of a valve core of a fast-response pressure fine-tuning device.

[0021] In the picture:

[0022] 1. Valve seat; 2. First reducing flange; 3. Second reducing flange;

[0023] 4. Valve core; 41. Fixed valve plate; 411. Valve hole; 42. Closing valve plate; 421. Gear teeth; 422. Through hole; 43. Sealing piece; 431. Clamp; 432. Clearance hole;

[0024] 5. Pressure sensor;

[0025] 6. Driving mechanism; 61. Gear rod; 62. Screw; 63. Servo motor; 64. Sealing sleeve;

[0026] 7. Lock bolt; 8. Sealing ring. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0028] This embodiment provides a fast response pressure fine-tuning device, such as Figure 1-Figure 3 As shown, the fast response pressure fine-tuning device includes a valve seat 1 and a valve core 4 arranged in the valve seat 1.

[0029] The inlet end and the outlet end of the valve seat 1 are respectively provided with a first reducing flange 2 and a second reducing flange 3 , and the first reducing flange 2 and the second reducing flange 3 are both connected by a locking bolt 7 .

[0030] The valve core 4 includes a fixed valve plate 41 fixedly installed in the inlet end of the valve seat 1 and a closed valve plate 42 rotatably installed in the valve seat 1 for cooperating with the fixed valve plate 41 to adjust the valve opening. The side of the closed valve plate 42 has gear teeth 421.

[0031] A driving mechanism 6 for driving the closed valve plate 42 to rotate is provided inside the valve seat 1. The driving mechanism 6 includes a gear rod 61 that moves longitudinally in the valve seat 1 and engages with the gear teeth 421, a screw rod 62 that passes through the center of the gear rod 61 and is screwed to the gear rod 61, and a servo motor 63 that is fixedly mounted on the valve seat 1 and whose output shaft is connected to the end of the screw rod 62, wherein the gear rod 61 is slidably connected to the inner wall of the valve seat 1.

[0032] A pressure sensor 5 connected to the servo motor 63 for signal connection is fixedly mounted at the center of one side of the fixed valve plate 41 close to the inlet end.

[0033] When in use, the pressure sensor 5 is installed on the side of the fixed valve plate 41 close to the inlet end, and is used to monitor the pressure of the material (gas or liquid) entering the valve seat 1 in real time. When there is a deviation between the monitored pressure and the set value, the pressure sensor 5 transmits a signal to the servo motor 63. The servo motor 63 drives the gear rod 61 to move longitudinally in the valve seat 1 by rotating the screw 62 according to the received signal. Since the gear rod 61 is engaged with the gear teeth 421 on the side of the closed valve plate 42, the movement of the gear rod 61 will drive the closed valve plate 42 to rotate, thereby changing the angle between it and the fixed valve plate 41, and then adjusting the opening of the valve; by continuously monitoring and adjusting the opening of the valve, the device can achieve rapid response and fine-tuning to the material pressure, ensuring that the pressure in the system or equipment remains within the set value range.

[0034] Furthermore, the end of the screw 62 away from the servo motor 63 is rotatably connected to the inner wall of the valve seat 1 through a sealed bearing, and the outer part of the end of the screw 62 close to the servo motor 63 is provided with a sealing sleeve 64 fixedly connected to the inner wall of the valve seat 1; the sealed bearing and the sealing sleeve 64 not only allow the screw 62 to rotate freely in the valve seat 1, but also effectively prevent the medium (such as gas or liquid) from leaking from the gap between the screw 62 and the valve seat 1, thereby ensuring the sealing inside the device.

[0035] Furthermore, there is a sealing ring 8 between the first reducing flange 2 and the fixed valve plate 41 and between the second reducing flange 3 and the closed valve plate 42; the sealing ring 8 fills the gap between the flange and the valve plate through its elastic deformation, preventing the medium from leaking therefrom, thereby ensuring the sealing of both ends of the valve seat 1.

[0036] Among them, six valve holes 411 distributed in a ring array along the axial direction are opened on the fixed valve plate 41, and through holes 422 corresponding to the valve holes 411 are opened on the closed valve plate 42; when the closed valve plate 42 is rotated to a certain angle, the through holes 422 are aligned with the valve holes 411, allowing the medium to pass through; when the closed valve plate 42 is rotated to other angles, the through holes 422 are misaligned with the valve holes 411, preventing the medium from passing through. In this way, the flow and pressure of the medium can be accurately controlled.

[0037] Furthermore, a sealing sheet 43 is attached to one side of the fixed valve plate 41 close to the closed valve plate 42. The sealing sheet 43 has six clamping heads 431 distributed in a ring array on one side close to the fixed valve plate 41. A clamping groove corresponding to the clamping head 431 is provided on the fixed valve plate 41. A clearance hole 432 corresponding to the valve hole 411 is also provided on the sealing sheet 43, wherein the side of the sealing sheet 43 away from the fixed valve plate 41 is in contact with the closed valve plate 42; the cooperation between the clamping head 431 and the clamping groove enables the sealing sheet 43 to be firmly fixed on the fixed valve plate 41. The sealing sheet 43 enhances the sealing effect between the fixed valve plate 41 and the closed valve plate 42, further improving the stability of pressure regulation.

[0038] It should be noted that the output end of the pressure sensor 5 is respectively connected to the input end of the servo motor 63 and the input end of the external control center, and the input end of the servo motor 63 is also connected to the output end of the external control center; when the pressure sensor 5 detects a change in the medium pressure, it will transmit a signal to the servo motor 63 and the external control center. The servo motor 63 adjusts its rotation speed and direction according to the received signal, thereby changing the opening of the valve to adjust the medium pressure. At the same time, the external control center can also send a control signal to the servo motor 63 as needed to realize remote monitoring and adjustment of the valve opening.

[0039] The above is only a preferred specific implementation method of the present application, but the scope of protection of the present application is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes based on the technical solution and concept of the present application within the technical scope disclosed in the present application, and they should be covered by the scope of protection of the present application.

Claims

1. A fast-response pressure fine-tuning device, comprising a valve seat (1) and a valve core (4) disposed within the valve seat (1), characterized in that: The inlet end and the outlet end of the valve seat (1) are respectively provided with a first reducing flange (2) and a second reducing flange (3), and the first reducing flange (2) and the second reducing flange (3) are both connected via a locking bolt (7); The valve core (4) comprises a fixed valve plate (41) fixedly mounted in the inlet end of the valve seat (1) and a closed valve plate (42) rotatably mounted in the valve seat (1) for cooperating with the fixed valve plate (41) to adjust the valve opening, wherein the closed valve plate (42) has gear teeth (421) on its side. A driving mechanism (6) for driving the closed valve plate (42) to rotate is provided inside the valve seat (1), the driving mechanism (6) comprising a gear rod (61) that moves longitudinally inside the valve seat (1) and meshes with the gear teeth (421), a screw rod (62) that passes through the center of the gear rod (61) and is screwed to the gear rod (61), and a servo motor (63) that is fixedly mounted on the valve seat (1) and whose output shaft is connected to the end of the screw rod (62), wherein the gear rod (61) is slidably connected to the inner wall of the valve seat (1); A pressure sensor (5) connected to the signal of the servo motor (63) is fixedly mounted at the center of one side of the fixed valve plate (41) close to the inlet end.

2. The fast-response pressure fine-tuning device according to claim 1, characterized in that: The end of the screw rod (62) away from the servo motor (63) is rotatably connected to the inner wall of the valve seat (1) through a sealing bearing, and the outer portion of the end of the screw rod (62) close to the servo motor (63) is sheathed with a sealing sleeve (64) fixedly connected to the inner wall of the valve seat (1).

3. The fast-response pressure fine-tuning device according to claim 2, characterized in that: A sealing ring (8) is provided between the first reducing flange (2) and the fixed valve plate (41), and between the second reducing flange (3) and the closed valve plate (42).

4. The fast-response pressure fine-tuning device according to claim 3, characterized in that: The fixed valve plate (41) is provided with six valve holes (411) distributed in a ring array along the axial direction, and the closed valve plate (42) is provided with through holes (422) corresponding to the valve holes (411).

5. The fast-response pressure fine-tuning device according to claim 4, characterized in that: A sealing sheet (43) is attached to one side of the fixed valve plate (41) close to the closed valve plate (42), and the sealing sheet (43) has six clamping heads (431) distributed in a ring array on one side close to the fixed valve plate (41). A clamping groove corresponding to the clamping heads (431) is provided on the fixed valve plate (41), and a clearance hole (432) corresponding to the valve hole (411) is also provided on the sealing sheet (43).

6. The fast-response pressure fine-tuning device according to claim 5, characterized in that: The output end of the pressure sensor (5) is respectively connected to the input end of the servo motor (63) and the input end of the external control center, and the input end of the servo motor (63) is also connected to the output end of the external control center.

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