A soft magnetic bridge nozzle shutter electrical conversion module

Abstract

The utility model discloses an industrial flow control technical field's soft magnetic type bridge type nozzle baffle electrical conversion module, and the baffle is designed to be the structure that one round plate is hung in the middle by four springs, and the elastic coefficient is smaller, and it is easier to deform under external force, set up two mutually parallel and perpendicular to the horizontal plane by the side plate of magnetic conductive material of making, and the electromagnetic coil is put aside, and the central shaft is parallel with the horizontal plane, when the electromagnetic coil is electrified, the side plate, bottom plate and baffle are magnetized simultaneously, and the electromagnetic coil has strengthened the force to the baffle. Compared with the similar product of adopting cantilever beam structure, the utility model has the technical effect of reducing the electromagnetic coil current, and reducing the power consumption.

Description

Technical Field

[0001] This utility model relates to the field of industrial flow control, and in particular to an electrical conversion module for a soft magnetic bridge nozzle baffle. Background Technology

[0002] Valve positioners, as key accessories for pneumatic control valves, play a vital role in improving the operational quality of control valves. Valve positioners can be categorized into pneumatic valve positioners, electric valve positioners, and intelligent valve positioners based on their input signals. Currently, in chemical production processes, pneumatic and electric valve positioners are used less frequently; over 95% of control valves utilize intelligent valve positioners to regulate valve opening.

[0003] The key component of an intelligent valve positioner is the electrical conversion module, whose main function is to convert electrical signals into pneumatic signals. By amplifying the back pressure and flow control of the nozzle, it provides sufficient power to operate the pneumatic regulating valve. The accuracy, real-time performance, reliability, vibration resistance, and low power consumption of the electrical conversion module directly affect the overall performance of the valve positioner. Designing a superior electrical conversion module is crucial for achieving intelligent valve positioner operation.

[0004] Traditional electrical conversion modules typically regulate gas pressure and flow by using baffles to block the nozzle. In the "An Electrical Conversion Module with Cantilever Separated Structure and Permanent Magnet Type Nozzle Baffle," the baffle is designed as a cantilever beam structure, thereby reducing the manufacturing cost of the baffle. However, to make such a structure bend, a relatively large force is required, and even with the addition of permanent magnets, the current in the electromagnetic coil remains relatively high. Utility Model Content

[0005] To address the aforementioned problems in existing technologies, this utility model provides a soft magnetic bridge-type nozzle baffle electrical conversion module. The baffle is designed as a circular plate suspended in the middle by four springs, resulting in a smaller elastic coefficient and easier deformation under external force. Two parallel side plates made of magnetically conductive material are provided, perpendicular to the horizontal plane, and the electromagnetic coil is placed on its side with its central axis parallel to the horizontal plane. When the electromagnetic coil is energized, the side plates, bottom plate, and baffle are simultaneously magnetized, thereby reducing the electromagnetic coil current and lowering power consumption.

[0006] The technical solution of this utility model is as follows:

[0007] A soft magnetic bridge-type nozzle baffle electrical conversion module includes a base plate 1, an electromagnetic coil 2, a nozzle 3, a valve stem 4, a baffle 5, a side plate 6, a magnetic rod 7, a baffle fixing screw 8, and a side plate fixing screw 9.

[0008] The base plate 1 is a rectangular thin plate structure with four through holes parallel to the thickness direction for connecting the side plate 6.

[0009] The side plate 6 is a rectangular thin plate structure, and there are two of them. Two threaded holes are provided on two end faces that are perpendicular to the thickness direction and parallel to each other. One end face threaded hole is used to connect to the bottom plate 1, and the other end face threaded hole is used to connect to the baffle 5.

[0010] Side plate fixing screws 9 pass through the through hole and threaded hole in sequence; both side plates 6 are connected to the same surface of the base plate 1 perpendicular to the thickness direction, and are parallel to each other without contact; when viewed from a plane perpendicular to the thickness direction of the side plates and parallel to the thickness direction of the base plate, the projections of the two side plates completely overlap.

[0011] The electromagnetic coil 2 is fixed on the side plate 6, and the central axis of the electromagnetic coil 2 is parallel to the bottom plate 1;

[0012] The valve stem 4 is a hollow cylindrical structure, fixed on the base plate 1, and its central axis is parallel to the side plate 6;

[0013] The nozzle 3 is fixed on the end face of the valve stem 4 away from the base plate 1. Gas flows into the valve stem 4 from below the base plate 1 and then flows out from the nozzle 3.

[0014] The baffle 5 is a thin plate structure with through holes; the baffle fixing screw 8 passes through the through holes of the baffle 5 and connects to the threaded holes of the side plate 6; after installation, the baffle 5 is located above the nozzle 3 and can move downward under the electromagnetic force of the electromagnetic coil 2 to block the nozzle 3.

[0015] The magnetic rod 7 is a solid cylindrical structure and is fixed at the center of the electromagnetic coil 2. In use, the electromagnetic coil 2 magnetizes the magnetic rod 7 to deform the baffle 5 and change the flow rate of the gas discharged from the nozzle 3.

[0016] Furthermore, the baffle 5 is cut from a thin plate and includes a circular plate 10, a mounting ring 11, and a spring 12. Viewed from directly above the base plate 1, the circular plate 10 completely covers the nozzle 3 and the valve stem 4. The mounting ring 11 has a circular structure, and the baffle fixing screw 8 passes through the threaded holes of the mounting ring 11 and the side plate 6 in sequence to fix the baffle 5 to the side plate 6. The spring 12 has a slender strip structure and is provided with multiple curved parts for connecting the circular plate 10 and the mounting ring 11.

[0017] When the electromagnetic coil 2 is energized, the spring 12 deforms, causing the circular plate 10 to move away from the nozzle 3.

[0018] Furthermore, the cross-section of the spring 12 is S-shaped.

[0019] Furthermore, there are four mounting rings 11 and four springs 12.

[0020] Furthermore, the base plate 1, baffle 5, and side plate 6 are made of soft magnetic material.

[0021] Furthermore, it also includes a circuit board 13, which is used to adjust the current of the electromagnetic coil 2; the circuit board 13 is fixed on the side plate 6.

[0022] The beneficial technical effects of this utility model are as follows:

[0023] Compared with similar products that use a cantilever beam structure, the electromagnetic coil current is reduced and the power consumption is lowered. Attached Figure Description

[0024] Figure 1 It's an exploded view;

[0025] Figure 2 This is an exterior view.

[0026] In the figure, the correspondence between the component names and the attached drawing numbers is as follows: 1. Base plate; 2. Electromagnetic coil; 3. Nozzle; 4. Valve stem; 5. Baffle; 6. Side plate; 7. Magnetic rod; 8. Baffle fixing screw; 9. Side plate fixing screw; 10. Circular plate; 11. Mounting ring; 12. Spring; 13. Circuit board. Detailed Implementation

[0027] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0028] Exploded view of the embodiment is as follows Figure 1 As shown, it consists of a base plate 1, an electromagnetic coil 2, a nozzle 3, a valve stem 4, a baffle 5, a side plate 6, a magnetic rod 7, baffle fixing screws 8, side plate fixing screws 9, and a circuit board 13. The finished appearance is shown in the diagram. Figure 2 As shown.

[0029] The base plate 1 is a rectangular thin plate structure with four through holes parallel to the thickness direction for connecting the side plates 6.

[0030] The side plate 6 is a rectangular thin plate structure, and there are two of them. Two threaded holes are provided on the two end faces that are perpendicular to the thickness direction and parallel to each other. The threaded hole on one end face is used to connect to the base plate 1, and the threaded hole on the other end face is used to connect to the baffle 5.

[0031] The side plate fixing screw 9 passes through the through hole of the bottom plate 1 and the threaded hole of the side plate 6 in sequence, and the side plate 6 can be connected to the bottom plate 1 to form an integral body. The two side plates 6 are both connected to the same surface of the bottom plate 1 perpendicular to the thickness direction and are parallel to each other without contact; when observed from a plane perpendicular to the side plate thickness direction and parallel to the bottom plate thickness direction, the projections of the two side plates completely coincide; when observed from a plane perpendicular to both the side plate thickness direction and the bottom plate thickness direction, the cross-section of the integral body formed by connecting the three is a "U" shape.

[0032] Both the bottom plate 1 and the side plate 6 are made of magnetic conductive materials and can be magnetized in the electromagnetic field of the electromagnetic coil 2 to enhance the acting force on the baffle 5.

[0033] The electromagnetic coil 2 is fixed on the side plate 6 and its central axis is parallel to the bottom plate 1. The magnetic conductive rod 7 is a solid cylindrical structure and is fixed at the center of the electromagnetic coil 2. When the electromagnetic coil 2 is powered on, the magnetic conductive rod 7 is magnetized, enhancing the acting force of the electromagnetic coil 2 on the baffle 5.

[0034] The valve stem 4 is a hollow cylindrical structure and gas can flow through the inside of the valve stem 4. The valve stem 4 is fixed on the bottom plate 1 and its central axis is parallel to the side plate 6. The nozzle 3 is fixed on the end face of the valve stem 4 far from the bottom plate 1, and gas flows into the valve stem 4 from below the bottom plate 1 and then flows out from the nozzle 3.

[0035] The baffle 5 is cut from a thin plate and can be divided into three parts: a circular plate 10, a mounting ring 11 and a spring 12. When looking down from directly above the bottom plate 1, the circular plate 10 completely blocks the nozzle 3 and the valve stem 4. There are a total of 4 mounting rings 11, which are circular ring structures. The baffle fixing screws 8 pass through the mounting rings 11 and the threaded holes of the side plate 6 in sequence to fix the baffle 5 on the side plate 6. There are a total of 4 springs 12, which are slender strip structures and are provided with multiple bending parts, and the cross-section is S-shaped, and are used to connect the circular plate 10 and the mounting ring 11. When the electromagnetic coil 2 is powered on, the spring 12 deforms, causing the circular plate 10 to move away from the nozzle 3.

[0036] The baffle 5 is designed with such a structure to reduce the elastic coefficient. Compared with the cantilever beam structure of "A Permanent Magnet Nozzle Baffle Electrical Conversion Module with a Cantilever Separation Structure", such a structure is obviously more likely to deform.

[0037] Circuit board 13 is fixed to side plate 6 and is used to adjust the current of electromagnetic coil 2. When electromagnetic coil 2 is not energized, baffle 5 moves towards base plate 1 under its own elastic force, so that the pressure of the gas flowing out of nozzle 3 reaches the maximum value and the flow rate reaches the minimum value, which is equivalent to closing the valve. When electromagnetic coil 2 is energized, magnetic rod 7, base plate 1, side plate 6 and baffle 5 are magnetized at the same time, so that baffle 5 moves away from base plate 1 under the combined action of its own elastic force and the force of electromagnetic coil 2, increasing the distance between it and nozzle 3, so that the pressure of the gas flowing out of nozzle 3 decreases and the flow rate increases. When the current of electromagnetic coil 2 reaches the maximum value, the pressure of the gas flowing out of nozzle 3 reaches the minimum value and the flow rate reaches the maximum value.

[0038] Although the embodiments of this utility model have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for this utility model. For those skilled in the art, and for those of ordinary skill in the art, various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. Therefore, without departing from the general concept defined by the claims and their equivalents, this utility model is not limited to the specific details.

Claims

1. A soft magnetic bridge-type nozzle baffle electrical conversion module, characterized in that: Includes a base plate (1), an electromagnetic coil (2), a nozzle (3), a valve stem (4), a baffle (5), a side plate (6), a magnetic rod (7), a baffle fixing screw (8), and a side plate fixing screw (9); The base plate (1) is a rectangular thin plate structure with four through holes parallel to the thickness direction for connecting the side plate (6); The side plate (6) is a rectangular thin plate structure, and there are two of them. Two threaded holes are provided on two end faces that are perpendicular to the thickness direction and parallel to each other. One end face threaded hole is used to connect to the bottom plate (1), and the other end face threaded hole is used to connect to the baffle (5). Side plate fixing screws (9) pass through the through hole and threaded hole in sequence; both side plates (6) are connected to the same surface of the base plate (1) perpendicular to the thickness direction, and are parallel to each other without contact; when viewed from a plane perpendicular to the thickness direction of the side plate and parallel to the thickness direction of the base plate, the projections of the two side plates are completely overlapping. The electromagnetic coil (2) is fixed on the side plate (6), and the central axis of the electromagnetic coil (2) is parallel to the bottom plate (1); The valve stem (4) is a hollow cylindrical structure, fixed on the base plate (1), and its central axis is parallel to the side plate (6); The nozzle (3) is fixed on the end face of the valve stem (4) away from the base plate (1). Gas flows into the valve stem (4) from below the base plate (1) and then flows out from the nozzle (3). The baffle (5) is a thin plate structure with through holes; the baffle fixing screw (8) passes through the through hole of the baffle (5) and connects to the threaded hole of the side plate (6); after installation, the baffle (5) is located above the nozzle (3) and can move downward under the electromagnetic force of the electromagnetic coil (2) to block the nozzle (3). The magnetic rod (7) is a solid cylindrical structure and is fixed at the center of the electromagnetic coil (2). When in use, the electromagnetic coil (2) magnetizes the magnetic rod (7) to cause the baffle (5) to deform and change the flow rate of the gas discharged from the nozzle (3).

2. The electrical conversion module for a soft magnetic bridge nozzle baffle according to claim 1, characterized in that: The baffle (5) is cut from a thin plate. The baffle (5) includes a circular plate (10), a mounting ring (11), and a spring (12). Looking down from directly above the bottom plate (1), the circular plate (10) completely covers the nozzle (3) and the valve stem (4). The mounting ring (11) is a circular ring structure. The baffle fixing screw (8) passes through the threaded holes of the mounting ring (11) and the side plate (6) in sequence to fix the baffle (5) on the side plate (6). The spring (12) is a slender strip structure with multiple bends for connecting the circular plate (10) and the mounting ring (11). When the electromagnetic coil (2) is energized, the spring (12) deforms, causing the circular plate (10) to move away from the nozzle (3).

3. The electrical conversion module for a soft magnetic bridge nozzle baffle according to claim 2, characterized in that, The cross-section of the spring (12) is S-shaped.

4. The electrical conversion module for a soft magnetic bridge nozzle baffle according to claim 2, characterized in that, The number of mounting rings (11) and springs (12) is four each.

5. The electrical conversion module for a soft magnetic bridge nozzle baffle according to claim 1, characterized in that, The base plate (1), baffle (5) and side plate (6) are made of soft magnetic material.

6. The electrical conversion module for a soft magnetic bridge nozzle baffle according to claim 1, characterized in that: It also includes a circuit board (13) for adjusting the current of the electromagnetic coil (2); the circuit board (13) is fixed on the side plate (6).

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