Quick-release electromagnetic type automatic control instrument

Abstract

The invention provides a quick-release electromagnetic type automatic control instrument, and relates to the technical field of automatic control instruments. The first connecting shell is provided with a first fluid channel in the first direction, and is provided with a mounting cavity communicated with the first fluid channel in the second direction; the electromagnetic core body is used for measuring fluid flow, and a fluid detection channel is formed in the electromagnetic core body; a second fluid channel communicating with the first fluid channel is formed in the second connecting shell, and a flow control structure used for flow regulation and control is arranged in a path of the second fluid channel; the third connecting shell is provided with a driving mechanism capable of driving the working condition of the flow control structure; and the control unit is electrically connected with the electromagnetic core body and the driving mechanism. The control unit obtains flow data through the electromagnetic core body and adjusts the working condition of the flow control structure through the driving mechanism so as to adjust the value of flow flowing through the second fluid channel. The quick-release electromagnetic automatic control instrument can effectively solve the problems that an existing quick-release electromagnetic automatic control instrument is not easy to detach and complex in installation and maintenance process.

Description

Technical Field

[0001] The present invention relates to the technical field of automatic control instruments, in particular to a quick-release electromagnetic automatic control instrument. Background Art

[0002] Against the backdrop of today's booming industrial automation and intelligentization, various control instruments play an indispensable and critical role in numerous fields, and are widely used in industries such as chemical, pharmaceutical, food and beverage, and energy. Among them, electromagnetic automatic controllers, which achieve precise control based on the principle of electromagnetic induction, are highly favored.

[0003] Currently, the installation process for traditional electromagnetic automatic controllers is extremely complex, requiring specialized technicians to perform meticulous commissioning and calibration based on specific environmental and equipment requirements. This not only consumes significant manpower and time, but also places extremely high demands on the technicians' professionalism. Even the slightest deviation in the installation process can significantly reduce the performance of the automatic controller, affecting the operational stability and control accuracy of the entire system. Subsequent maintenance is extremely difficult due to the complex internal structure and numerous components, making troubleshooting and replacing damaged parts extremely challenging. This often requires significant downtime, severely impacting production efficiency. Summary of the Invention

[0004] In view of the above shortcomings of the prior art, an object of the present invention is to provide a quick-release electromagnetic automatic control instrument, which can solve the above problems existing in the prior art.

[0005] To achieve the above-mentioned and other related purposes, the present invention discloses a quick-release electromagnetic automatic control instrument, which includes:

[0006] A first connecting housing is provided with a first fluid passage along a first direction and a mounting cavity connected to the first fluid passage along a second direction;

[0007] an electromagnetic core body, detachably disposed in the mounting cavity, for measuring fluid flow, wherein a fluid detection channel is defined therein, and when the electromagnetic core body is located in the mounting cavity, the fluid detection channel is in communication with and coaxial with the first fluid channel;

[0008] a second connecting housing connected to the first connecting housing, wherein a second fluid channel connected to the first fluid channel is defined therein, and a flow control structure for regulating flow is provided in the path of the second fluid channel;

[0009] a third connecting housing connected to the second connecting housing, and configured to provide a driving mechanism capable of driving the flow control structure; and

[0010] a control unit, electrically connected to the electromagnetic core and the driving mechanism respectively;

[0011] The control unit obtains flow data through the electromagnetic core, and adjusts the working condition of the flow control structure through the driving mechanism to adjust the flow value flowing through the second fluid channel.

[0012] In one embodiment, the first direction is perpendicular to the second direction, and the mounting cavity is provided through the first connecting housing;

[0013] Wherein, a first sealing structure and a second sealing structure for sealing the openings at both ends of the installation cavity are connected to the first connecting shell.

[0014] In one embodiment, the first sealing structure comprises:

[0015] a first sealing plate connected to the first connecting shell via a flange structure;

[0016] a first connecting block, located on a side of the first sealing plate close to the mounting cavity, and connected to the first sealing plate via a screw that is screwed onto the first sealing plate;

[0017] By rotating the screw, the distance between the first connecting block and the first sealing plate can be adjusted.

[0018] In one embodiment, a first connecting plate is provided in the installation cavity and is slidably connected to the first connecting shell;

[0019] Wherein, a first sliding groove is provided on the inner wall of the first connecting shell and is arranged axially along the installation cavity, and the first connecting plate is slidably arranged in the first sliding groove; and

[0020] A thrust spring is provided in the first sliding groove, which enables the first connecting plate to maintain a movement trend toward the first fluid channel in real time.

[0021] In one embodiment, the second sealing structure includes:

[0022] a second sealing plate connected to the first connection housing via a flange structure, and a second connection block being screwed onto the second sealing plate;

[0023] a second connecting plate, slidably connected to the mounting cavity, and having a side surface connected to the second connecting block;

[0024] Wherein, the electromagnetic core is arranged between the first connecting plate and the second connecting plate.

[0025] In one embodiment, a limiting structure is provided between the first connecting shell and the electromagnetic core, and the limiting structure includes:

[0026] A plurality of limiting protrusions axially arranged along the electromagnetic core, and a plurality of limiting notches axially arranged along the inner wall of the mounting groove;

[0027] Wherein, the limiting protrusion is arranged corresponding to the limiting notch, and the limiting protrusion and the limiting notch are clamped together.

[0028] In one embodiment, a first power docking structure is provided between the electromagnetic core and the first connecting plate, comprising a first male connector and a first female connector that are connectable to each other; and

[0029] A second power docking mechanism is provided on the first connection housing, comprising a second male connector and a second female connector that can be connected to each other;

[0030] Wherein, the first male connector is electrically connected to the electromagnetic core, and the first female connector is electrically connected to the second male connector.

[0031] In one embodiment, the flow control structure includes:

[0032] a fixed wheel and a rotating wheel disposed in the second fluid channel;

[0033] The fixed wheel is fixedly connected to the second connecting shell, and the rotating wheel is rotatably connected to the lower side of the fixed wheel;

[0034] Wherein, flow holes are respectively opened on the fixed wheel and the rotating wheel, and the overlap amount of the flow holes on the fixed wheel and the rotating wheel is adjusted by adjusting the angle of the rotating wheel relative to the fixed wheel.

[0035] In one embodiment, the driving mechanism comprises:

[0036] a driving motor fixedly connected to the first connecting housing; and

[0037] a worm wheel and a worm screw meshing with each other and disposed in the third connecting housing;

[0038] The worm is connected to the main shaft of the driving motor, and the rotating shaft of the worm wheel is connected to the rotating wheel through a connecting shaft.

[0039] In one embodiment, it further includes a plurality of sealing rings located between the electromagnetic core and the first connecting shell, and the plurality of sealing rings are divided into two groups and respectively disposed on both sides of the flow measurement channel.

[0040] The beneficial effects of this application are:

[0041] 1. The first / second / third connection shells are connected in series through a standard flange structure, making the disassembly time of a single flange less than 2 minutes, which is 80% more efficient than the maintenance of traditional welded structures and supports "dismantle and replace" online maintenance.

[0042] 2. The electromagnetic core is inserted into the mounting cavity using a "spring preload + slideway" mechanism, enabling mechanical positioning and electrical connection with a single push. Furthermore, the spring thrust and double-ended thread adjustment create a clamp-like fixation, effectively minimizing axial error. The clearance between the stopper protrusion and the notch further ensures fluid channel coaxiality deviation of less than 0.1°.

[0043] 3. The overlapping area of ​​the flow holes of the fixed wheel and the rotating wheel can be continuously adjusted from 0 to 100%. Combined with the worm gear reduction, the electric adjustment resolution reaches 0.05%, which is 10 times higher than the manual valve control accuracy and can be used in high-precision fluid control scenarios.

[0044] 4. The control unit can collect the flow signal of the electromagnetic core in real time at a frequency of 100Hz, and combine it with the position data of the driving mechanism to form a "detection-calculation-adjustment" closed loop, so that the dynamic error of flow control is effectively reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] The above and other features, advantages and aspects of the embodiments of the present invention will become more apparent with reference to the following detailed description in conjunction with the accompanying drawings. The accompanying drawings are provided for a better understanding of the present invention and do not constitute a limitation of the present invention. In the accompanying drawings, the same or similar reference numerals represent the same or similar elements, among which:

[0046] Figure 1 This is a schematic diagram of the overall structure of the quick-release electromagnetic automatic control instrument of the present invention;

[0047] Figure 2 A schematic diagram of the overall structure of the quick-release electromagnetic automatic control device of the present invention from another perspective;

[0048] Figure 3 It is a cross-sectional structural diagram of the quick-release electromagnetic automatic control instrument of the present invention;

[0049] Figure 4 for Figure 3 A schematic diagram of the structure enlarged in the middle;

[0050] Figure 5 It is a structural schematic diagram of the limit notch of the quick-release electromagnetic automatic control instrument of the present invention;

[0051] Figure 6 It is a structural schematic diagram of the electromagnetic core of the quick-release electromagnetic automatic control instrument of the present invention;

[0052] In the picture:

[0053] 100, first connecting housing; 101, first fluid channel; 102, mounting cavity;

[0054] 110. Electromagnetic core; 111. Electrode; 112. Fluid detection channel;

[0055] 120, first sealing structure; 121, first sealing plate; 122, first connecting block; 123, screw;

[0056] 130. Second sealing structure; 131. Second sealing plate; 132. Second connecting block; 133. Second connecting plate;

[0057] 140. First connecting plate; 141. Spring; 142. First sliding groove;

[0058] 150. First power connection structure; 151. First male connector; 152. First female connector;

[0059] 160. Second power connection mechanism; 161. Second male connector; 162. Second female connector;

[0060] 170. Limiting structure; 171. Limiting protrusion; 172. Limiting notch;

[0061] 180, sealing ring;

[0062] 200, second connecting housing; 210, flow control structure; 211, fixed wheel; 212, rotating wheel; 220, second fluid channel;

[0063] 300, third connecting housing; 310, driving mechanism; 311, motor; 312, worm gear; 313, worm; 314, connecting shaft; 320, lining; 321, bearing; 322, oil seal;

[0064] 400, control unit;

[0065] DY, first direction; DX, second direction. DETAILED DESCRIPTION

[0066] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0067] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0068] See also Figures 1 to 6 It should be noted that the structures, proportions, sizes, etc. depicted in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions under which the present invention can be implemented. Therefore, they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in the present invention without affecting the efficacy and purpose of the present invention.

[0069] See also Figures 1 to 6 The present invention provides a quick-release electromagnetic automatic controller, which can be used to improve the problems of the current quick-release electromagnetic automatic controller in that it is not easy to disassemble and has complicated installation and maintenance processes.

[0070] Specifically, the quick-release electromagnetic automatic controller provided by the present invention includes a first connecting shell 100, an electromagnetic core 110, a second connecting shell 200, a third connecting shell 300 and a control unit 400. Among them, the second connecting shell 200 is connected to the first connecting shell 100, and the third connecting shell 300 is connected to the second connecting shell 200. Specifically, the connection between the second connecting shell 200 and the first connecting shell 100, and the connection between the third connecting shell 300 and the second connecting shell 200 are respectively connected by a detachable flange structure. By connecting the three shells through the detachable flange structure, the independent and quick disassembly of each component is realized, and maintenance or replacement can be completed without complex tools, which greatly shortens the downtime.

[0071] Furthermore, a first fluid channel 101 is provided in the first connecting shell 100 along the first direction DY, and a mounting cavity 102 connected to the first fluid channel 101 is provided along the second direction DX. In one embodiment, the first direction DY and the second direction DX are arranged perpendicular to each other. For example, when the quick-release electromagnetic automatic controller is placed horizontally, the first direction DY is perpendicular to the horizontal plane, and the second direction DX is located in the horizontal plane. It can be understood that the structure in which the first fluid channel 101 and the mounting cavity 102 are arranged perpendicularly allows the electromagnetic core 110 to be installed horizontally on the side of a horizontal pipe, avoiding the cumbersome operation of cutting the pipe required for traditional axial installation. At the same time, the vertical / horizontal channel layout when placed horizontally is particularly suitable for scenarios where space is limited on industrial sites, reducing the installation space requirements.

[0072] The electromagnetic core 110 is removably mounted within the mounting cavity 102 and is used to measure fluid flow. A fluid detection channel 212 is defined within the electromagnetic core 110. When the electromagnetic core 110 is within the mounting cavity 102, the fluid detection channel 212 is coaxially connected to the first fluid channel 101. Furthermore, when fluid passes through the detection channel, the electromagnetic core 110 can be used to detect the flow rate of the fluid. The electromagnetic core 110 is a standalone module that can be removably mounted within the housing, enabling quick online replacement without interrupting the main pipeline, significantly reducing maintenance time.

[0073] Specifically, the electromagnetic core 110 includes a sensing unit and a signal conversion unit, wherein the sensing unit includes a measuring tube, an electrode 111, an excitation system and a protective shell.

[0074] Specifically, the measuring tube is made of corrosion-resistant stainless steel or another insulating material, such as polytetrafluoroethylene. Its smooth inner wall ensures smooth fluid flow without reacting with the medium. It also provides a fluid flow channel while isolating the internal measurement from interference from external magnetic fields. As will be appreciated, in this embodiment, the fluid detection channel is located within the measuring tube.

[0075] Electrodes 111 are positioned within the measuring tube and are symmetrically mounted on either side of the tube, in direct contact with the fluid. Electrodes 111 are used to detect the induced electromotive force generated by the fluid flow and transmit it to the converter. The excitation system, which includes an excitation coil and a magnetic yoke, generates a uniform magnetic field. Excitation methods include DC excitation, AC excitation, and low-frequency square wave excitation. In this embodiment, low-frequency square wave excitation is often used to reduce polarization interference and zero drift.

[0076] It can be understood that the excitation system and the measuring tube are arranged in a protective shell, and the protective shell is made of metal to protect the internal components and prevent electromagnetic interference.

[0077] Furthermore, the conversion unit includes a signal processing circuit, which is electrically connected to the control unit 400, and includes modules such as amplification, filtering, demodulation, and A / D conversion, which are used to amplify the weak induced electromotive force signal detected by the electrode 111 and convert it into a standard electrical signal.

[0078] In one embodiment, the first direction DY is perpendicular to the second direction DX, and the mounting cavity 102 is provided through the first connection housing 100. A first sealing structure 120 and a second sealing structure 130 are connected to the first connection housing 100 to seal the openings at both ends of the mounting cavity 102. The provision of the first and second sealing structures 120, 130 enables quick disassembly and positioning adjustment of the electromagnetic core 110 and the first connection housing 100. The independent sealing structures at both ends enable single-sided maintenance without disassembling the entire sensor. Furthermore, the flange-type sealing plate design is compatible with industry-standard interfaces and can directly replace traditional welded structures.

[0079] Specifically, the first sealing structure 120 includes a first sealing plate 121, a first connecting block 122 and a screw 123. Among them, the first sealing plate 121 is connected to the first connecting shell 100 through a flange structure to facilitate the disassembly of the first sealing plate 121. The first connecting block 122 is located on the side of the first sealing plate 121 close to the mounting cavity 102, and the first connecting block 122 is connected to the first sealing plate 121 through a screw 123 that is spirally connected to the first sealing plate 121. Therefore, by rotating the screw 123, it can be used to adjust the distance between the first connecting block 122 and the first sealing plate 121. It can be understood that the micron-level sealing force adjustment is achieved through the screw 123 transmission system to compensate for the relaxation caused by aging of the sealing material.

[0080] It is important to note that a first connecting plate 140 is disposed within the mounting cavity 102 and is slidably connected to the first connecting housing 100. A first slot 142 is defined on the inner wall of the first connecting housing 100, extending axially along the mounting cavity 102. The first connecting plate 140 is slidably disposed within the slot 142. A thrust spring 141 is disposed within the slot 142, ensuring that the first connecting plate 140 maintains a constant movement toward the first fluid channel 101. This thrust spring 141 pushes the connecting plate against the electromagnetic core 110, automatically compensating for any gaps in the mounting arrangement.

[0081] When the electromagnetic core 110 is installed in the mounting cavity 102, one end of the electromagnetic core 110 is connected to the first connecting plate 140, and the other end of the first connecting plate 140 is connected to the first connecting block 122. Through bolt adjustment, the positioning base of the electromagnetic core 110 can be precisely moved along the axis of the mounting cavity 102, enabling adaptive adjustment of different core sizes. Therefore, the electromagnetic core 110 can be adjusted within the mounting cavity 102 for different sizes or lengths of electromagnetic cores 110.

[0082] As you can understand, upgrading the traditional fixed installation method to a dynamic adaptive system not only meets the need for rapid switching between different core models, but also improves long-term operational reliability through the spring 141-slide linkage mechanism. This is particularly suitable for flexible production lines with frequent product changeovers. The spring 141 preload and sliding positioning technology significantly improves the compatibility and installation accuracy of the electromagnetic core 110.

[0083] It should be noted that a first power docking structure 150 is provided between the electromagnetic core 110 and the first connecting plate 140, comprising a first male connector 151 and a first female connector 152 that are interconnected. A second power docking mechanism 160 is provided on the first connecting housing 100, comprising a second male connector 161 and a second female connector 162 that are interconnected. The first male connector 151 is electrically connected to the electromagnetic core 110, and the first female connector 152 is electrically connected to the second male connector 161. Therefore, when the electromagnetic core 110 is disposed within the mounting cavity 102, it can be directly connected via the first male connector 151 and the first female connector 152, and power can be transmitted via the second power docking mechanism 160.

[0084] Furthermore, the second female connector 162 can be electrically connected to the control unit 400 to achieve electrical connection between the control unit 400 and the electromagnetic core 110. During actual installation, the electromagnetic core 110 can be directly installed within the installation cavity 102. Furthermore, the interconnection between the first male connector 151 and the first female connector 152 ensures the positioning accuracy of the electromagnetic core 110 within the installation cavity 102. Therefore, the connector mating surface serves as a mechanical positioning reference, forming a three-point positioning system together with the sliding first connecting plate 140.

[0085] It can be understood that the power docking structure design and the integrated quick-plug solution significantly improve the installation efficiency and electrical connection reliability of the electromagnetic flowmeter.

[0086] Furthermore, the second sealing structure 130 includes a second sealing plate 131, a second connecting block 132, and a second connecting plate 133. Specifically, the second sealing plate 131 is connected to the first connection housing 100 via a flange structure, and the second connecting block 132 is screwed onto the second sealing plate 131. The second connecting plate 133 is slidably connected within the mounting cavity 102, and one side is connected to the second connecting block 132. The electromagnetic core 110 is disposed between the first connecting plate 140 and the second connecting plate 133.

[0087] Therefore, by rotating the second connecting block 132, the position of the second connecting block 132 relative to the second sealing plate 131 is adjusted. At the same time, the connection on one side of the electromagnetic core 110 is achieved through the second connecting plate 133. After one side of the electromagnetic core 110 is connected by the first connection positioning, the other side of the electromagnetic core 110 is locked by the second connecting plate 133.

[0088] At the same time, the position of the electromagnetic core 110 within the mounting cavity 102 can be adjusted by rotating the screw 123 or the second connecting block 132, thereby improving the adjustability of the device during actual use. It can be understood that the clamp-type positioning system formed by the preload of the spring 141 of the first connecting plate 140 and the threaded adjustment of the second connecting plate 133 provides high axial positioning accuracy.

[0089] Furthermore, when disassembly and maintenance are necessary, the second sealing structure 130 can be removed first to inspect the signal end separately, without touching the fluid-side connection, thus reducing the risk of medium leakage. Furthermore, when the second connecting block 132 is released, the spring 141 automatically pushes the core out 5-8 mm, making it easier to remove and replace it manually.

[0090] It is understandable that by upgrading the traditional "rigid fixation" to the "elastic clamping + precision fine-tuning" system, long-term stability under high temperature and high pressure conditions is guaranteed, and maintenance convenience is greatly improved.

[0091] Furthermore, in order to improve the connection accuracy between the electromagnetic core 110 and the installation cavity 102 , a limiting structure 170 may be provided between the first connection housing 100 and the electromagnetic core 110 .

[0092] Specifically, the limiting structure 170 includes a plurality of limiting protrusions 171 arranged axially along the electromagnetic core 110, and a plurality of limiting notches 172 arranged axially along the inner wall of the installation slot. The limiting protrusions 171 and the limiting notches 172 are arranged correspondingly, and the limiting protrusions 171 and the limiting notches 172 are arranged in a snap-fit ​​arrangement. Therefore, during actual installation, it is only necessary to align the limiting notches 172 with the limiting protrusions 171 to ensure that the fluid detection channel 212 and the first fluid channel 101 overlap.

[0093] Therefore, the precise fit between the limiting protrusion 171 and the limiting notch 172 ensures that the coaxial deviation between the fluid detection channel 212 and the main pipeline is less than 0.1°.

[0094] See also Figure 3, also includes multiple sealing rings 180 located between the electromagnetic core 110 and the first connecting housing 100. These sealing rings 180 are divided into two groups, one on each side of the fluid detection channel 212. Thus, two groups of sealing rings 180, one on each side of the fluid detection channel 212, form a double sealing barrier, significantly improving sealing reliability and ensuring fluid stability. Furthermore, with one group of sealing rings 180 on each side of the fluid detection channel 212, a double "inlet + outlet" barrier is formed, reducing leakage by over 90% compared to a single group of sealing rings.

[0095] See also Figure 3 In one embodiment, the second connecting shell 200 is connected to the first connecting shell 100, and a second fluid channel 220 connected to the first fluid channel 101 is opened therein, and a flow control structure 210 for flow regulation is provided in the path of the second fluid channel 220.

[0096] Specifically, the flow control structure 210 includes a fixed wheel 211 and a rotating wheel 212 disposed within the second fluid channel 220. The fixed wheel 211 is fixedly connected to the second connecting housing 200, while the rotating wheel 212 is rotatably attached to the underside of the fixed wheel 211. Flow holes are defined on each of the fixed wheel 211 and the rotating wheel 212. Adjusting the angle of the rotating wheel 212 relative to the fixed wheel 211 adjusts the overlap between the flow holes on the fixed wheel 211 and the rotating wheel 212.

[0097] It can be understood that the angle of the rotating wheel 212 of 0-90° corresponds to the overlap area of ​​the flow holes of 0-100%, achieving a linear adjustment of the range ratio of 0.5%-100% with an adjustment resolution of 0.1%.

[0098] See also Figure 3 In one embodiment, the third connecting housing 300 is connected to the second connecting housing 200 and is used to set a driving mechanism 310 that can drive the flow control structure 210 to work.

[0099] Specifically, the drive mechanism 310 includes a drive motor 311 and a worm gear 312 and a worm 313 that mesh with each other and are arranged in the third connection housing 300. Among them, the drive motor 311 is fixedly connected to the first connection housing 100, the worm 313 is connected to the main shaft of the drive motor 311, and the rotating shaft of the worm gear 312 is connected to the rotating wheel 212 through a connecting shaft 314. Therefore, the control unit 400 accurately adjusts the flow control structure 210 through the drive motor 311 to achieve dynamic regulation of the flow of the second fluid channel 220. It can be understood that the drive motor 311 cooperates with the worm gear 312 and the worm 313 to reduce speed, achieving precise control of the angle of the rotating wheel 212 at the level of 0.1°, and the flow regulation resolution reaches 0.05%, which is 10 times more efficient than manual adjustment. At the same time, the control unit 400 collects the flow sensor signal in real time and can automatically adjust the speed of the motor 311 through the PID algorithm. The flow control accuracy reaches ±0.5% FS and the response time is ≤500ms.

[0100] Furthermore, when the helix angle of the worm 313 is less than 3.5°, mechanical self-locking is formed to prevent the rotating wheel 212 from drifting in the event of power failure or failure, thereby ensuring process safety.

[0101] Specifically, the second connection housing 200 is provided with an inner liner 320, and the connecting shaft 314 is rotatably connected to the inner liner 320. The connecting shaft 314 and the inner liner 320 are connected by a bearing 321 to improve the rotational accuracy of the connecting shaft 314. Furthermore, multiple oil seals 322 are connected to the connecting shaft 314 and the inner liner 320 at one end near the second fluid passage 220 to improve sealing.

[0102] It should be noted that the control unit 400 is electrically connected to the electromagnetic core 110 and the driving mechanism 310 , respectively, and the control unit 400 obtains flow data through the electromagnetic core 110 .

[0103] Specifically, the control unit 400 collects flow signals from the electromagnetic core 110 in real time at a 100Hz frequency. This, combined with the position data from the drive mechanism 310, forms a closed-loop "detection-calculation-adjustment" system, effectively reducing dynamic flow control errors. The control unit 400 incorporates a built-in PID / fuzzy control algorithm that automatically adapts adjustment parameters to different media (e.g., water, slurry, or corrosive liquids), further shortening response time compared to traditional open-loop control.

[0104] It is important to note that the control unit 400 can also compensate in real time for the effects of changes in fluid temperature and conductivity on measurements. For example, the temperature compensation range is -20°C to +80°C, and the conductivity compensation range is 5μS / cm to 5S / cm, thereby ensuring data reliability under complex working conditions.

[0105] Furthermore, the control unit 400 monitors the electromagnetic core 110 signal stability such as electrode 111 contamination warning and the driving mechanism 310 operating status such as worm gear 312 worm 313 wear warning in real time, thereby improving the accuracy of fault identification and thus improving maintenance efficiency.

[0106] In summary, the present invention provides a quick-release electromagnetic automatic controller. Its first, second, and third connecting shells are connected in series via a standard flange structure. Single-flange disassembly takes less than 2 minutes, improving maintenance efficiency by 80% compared to traditional welded structures and supporting "dismantle and replace" online maintenance. The electromagnetic core 110 is inserted into the mounting cavity 102 via a "spring 141 preload + slideway sliding" mechanism, enabling mechanical positioning and electrical connection with a single push. Furthermore, the thrust of spring 141 and the double-ended threaded adjustment create a clamp-like fixation, effectively reducing axial error. The clearance between the limiting protrusion 171 and the notch further ensures that the coaxiality deviation of the fluid channel is less than 0.1°. The overlapping area of ​​the flow orifices of the fixed wheel 211 and the rotating wheel 212 is continuously adjustable from 0-100%. Combined with the deceleration of the worm gear 312 and the worm 313, the electric adjustment resolution reaches 0.05%, 10 times higher than the control accuracy of manual valves, making it suitable for high-precision fluid control scenarios. The control unit 400 can allow the flow signal of the electromagnetic core 110 to be collected in real time at a frequency of 100 Hz, and combined with the position data of the driving mechanism 310 to form a "detection-calculation-adjustment" closed loop, so that the dynamic error of the flow control is effectively reduced.

[0107] The above-described specific embodiments of the present invention do not limit the scope of protection of the present invention. Those skilled in the art will appreciate that various modifications, combinations, sub-combinations, and substitutions may be made based on design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention are intended to be included within the scope of protection of the present invention.

Claims

1. A quick-release electromagnetic automatic control instrument, characterized in that: include: A first connecting housing (100) is provided with a first fluid channel (101) along a first direction (DY), and a mounting cavity (102) connected to the first fluid channel (101) is provided along a second direction (DX); an electromagnetic core (110) detachably disposed in the installation cavity (102) for measuring fluid flow, wherein a fluid detection channel (212) is provided therein; when the electromagnetic core (110) is located in the installation cavity (102), the fluid detection channel (212) is communicated with and coaxial with the first fluid channel (101); a second connecting housing (200) connected to the first connecting housing (100), wherein a second fluid channel (220) connected to the first fluid channel (101) is provided, and a flow control structure (210) for flow regulation is provided in the path of the second fluid channel (220); A third connecting housing (300) is connected to the second connecting housing (200) and is used to provide a driving mechanism (310) capable of driving the flow control structure (210); and a control unit (400) electrically connected to the electromagnetic core (110) and the driving mechanism (310); The control unit (400) obtains flow data through the electromagnetic core (110), and adjusts the working condition of the flow control structure (210) through the driving mechanism (310) to adjust the flow value flowing through the second fluid channel (220).

2. The quick-release electromagnetic automatic control instrument according to claim 1, characterized in that: The first direction (DY) is perpendicular to the second direction (DX), and the mounting cavity (102) is provided through the first connecting shell (100); Wherein, a first sealing structure (120) and a second sealing structure (130) for sealing the openings at both ends of the installation cavity (102) are connected to the first connection shell (100).

3. The quick-release electromagnetic automatic control instrument according to claim 2, characterized in that: The first sealing structure (120) comprises: A first sealing plate (121) is connected to the first connecting shell (100) via a flange structure; a first connecting block (122), which is located on a side of the first sealing plate (121) close to the mounting cavity (102), and the first connecting block (122) is connected to the first sealing plate (121) via a screw (123) screwed to the first sealing plate (121); By rotating the screw rod (123), the distance between the first connecting block (122) and the first sealing plate (121) can be adjusted.

4. The quick-release electromagnetic automatic control instrument according to claim 3, characterized in that: A first connecting plate (140) is provided in the installation cavity (102) and is slidably connected to the first connecting shell (100); Wherein, a first sliding groove (142) is provided on the inner wall of the first connecting shell (100) and is arranged axially along the installation cavity (102), and the first connecting plate (140) is slidably arranged in the first sliding groove (142); and A thrust spring (141) is provided in the first sliding groove (142), which enables the first connecting plate (140) to maintain a movement tendency toward the first fluid channel (101) in real time.

5. The quick-release electromagnetic automatic control instrument according to claim 4, characterized in that: The second sealing structure (130) comprises: A second sealing plate (131) is connected to the first connection housing (100) via a flange structure, and a second connection block (132) is screwed onto the second sealing plate (131); A second connecting plate (133) is slidably connected in the installation cavity (102), and one side surface is connected to the second connecting block (132); Wherein, the electromagnetic core (110) is arranged between the first connecting plate (140) and the second connecting plate (133).

6. The quick-release electromagnetic automatic control instrument according to claim 5, characterized in that: A limiting structure (170) is provided between the first connecting shell (100) and the electromagnetic core (110), wherein the limiting structure (170) comprises: a plurality of limiting protrusions (171) axially arranged along the electromagnetic core (110), and a plurality of limiting notches (172) axially arranged along the inner wall of the installation groove; The limiting protrusion (171) and the limiting notch (172) are arranged correspondingly, and the limiting protrusion (171) and the limiting notch (172) are arranged in a snap-fit ​​manner.

7. The quick-release electromagnetic automatic control instrument according to claim 6, characterized in that: A first power docking structure (150) is provided between the electromagnetic core (110) and the first connecting plate (140), comprising a first male connector (151) and a first female connector (152) that can be connected to each other; and A second power docking mechanism (160) is provided on the first connection housing (100), comprising a second male connector (161) and a second female connector (162) that can be connected to each other; The first male connector (151) is electrically connected to the electromagnetic core (110), and the first female connector (152) is electrically connected to the second male connector (161).

8. The quick-release electromagnetic automatic control instrument according to claim 1, characterized in that: The flow control structure (210) includes: a fixed wheel (211) and a rotating wheel (212) disposed in the second fluid channel (220); The fixed wheel (211) is fixedly connected to the second connecting shell (200), and the rotating wheel (212) is rotatably connected to the lower side of the fixed wheel (211); Flow holes are respectively provided on the fixed wheel (211) and the rotating wheel (212), and the overlap of the flow holes on the fixed wheel (211) and the rotating wheel (212) is adjusted by adjusting the angle of the rotating wheel (212) relative to the fixed wheel (211).

9. The quick-release electromagnetic automatic control instrument according to claim 8, characterized in that: The driving mechanism (310) comprises: a driving motor (311), fixedly connected to the first connecting housing (100); and a worm wheel (312) and a worm (313) meshing with each other and disposed in the third connecting housing (300); The worm (313) is connected to the main shaft of the driving motor (311), and the rotating shaft of the worm wheel (312) is connected to the rotating wheel (212) via a connecting shaft (314).

10. The quick-release electromagnetic automatic control instrument according to claim 1, characterized in that: It also includes a plurality of sealing rings (180) located between the electromagnetic core (110) and the first connecting shell (100), and the plurality of sealing rings (180) are divided into two groups and respectively arranged on both sides of the flow measurement channel.

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