An electric valve filter device and an electric valve

Abstract

The utility model discloses an electric valve filter device and electric valve relates to electric valve technical field. Electric valve filter device includes filter subassembly, clamping subassembly, filter subassembly includes filter pipeline, filter piece, and the water inlet communication of the passage in the valve body of one end opening of filter pipeline with electric valve is connected, and the other end opening of filter pipeline communicates with the water pipeline, and the lateral surface of filter pipeline is set up and is installed the slot, and filter piece passes through the installation slot, and is installed in filter pipeline, and clamping subassembly is installed on filter pipeline, and clamping subassembly is used to hold fixed the filter piece of installing in filter pipeline, the utility model provides electric valve filter device, through installing filter subassembly on electric valve, it is convenient to filter the water flow through electric valve, can effectively reduce the probability of electric valve in the block, and through setting up and installing the slot in the lateral surface of filter pipeline, it is convenient to filter piece and is quickly disassembled, improves the maintenance efficiency to electric valve, ensures the stable work of electric valve.

Description

Technical Field

[0001] This utility model relates to the field of electric valve technology, and in particular to an electric valve filter device and an electric valve. Background Technology

[0002] An electric valve is a device that controls the opening and closing of a valve using an electric actuator. Boiler blowdown electric valves are commonly used in boiler systems to control water levels or perform blowdown operations. If the electric valve becomes clogged, water level control may fail, preventing proper water level regulation within the boiler. This can affect the safe operation of the boiler, as both excessively high and low water levels can lead to boiler malfunctions. Clogged electric valves can also affect the boiler's thermal efficiency. If blowdown is inadequate, scale and impurities inside the boiler cannot be removed in time and may adhere to the boiler tube walls, reducing heat transfer efficiency. This will cause the boiler to consume more energy to maintain normal operation, increasing operating costs. Utility Model Content

[0003] In view of this, the purpose of this utility model is to overcome the shortcomings in related technologies. This utility model provides an electric valve filter device and an electric valve.

[0004] This utility model provides the following technical solution:

[0005] An electric valve filter device includes a filter assembly and a clamping assembly.

[0006] The filter assembly includes a filter pipe and a filter element. One end of the filter pipe is connected to the inlet of a channel inside the electric valve body, and the other end of the filter pipe is connected to a water supply pipe. A mounting groove corresponding to the filter element is provided on the side of the filter pipe. The filter element passes through the mounting groove and is installed inside the filter pipe. A clamping assembly is installed on the filter pipe to clamp and fix the filter element installed inside the filter pipe.

[0007] As a further improvement to the above technical solution, the clamping assembly includes a driving component and clamping frames. The driving component is mounted on the filter pipe, and there are two clamping frames, which are symmetrically arranged on both sides of the filter. The driving component can drive the two clamping frames to move closer to the filter and clamp and fix the filter.

[0008] As a further improvement to the above technical solution, the filter element includes a filter plate and a filter frame. The filter plate is disposed on the filter frame, and a sealing ring corresponding to the clamping frame is provided between the two end faces of the filter frame. The sealing ring is located between the filter frame and the corresponding clamping frame.

[0009] As a further improvement to the above technical solution, a sliding frame is embedded in the filter frame, and the sliding frame can slide relative to the filter frame along the axis of the filter pipe. The filter plate is installed on the sliding frame. A damper and a pressure sensor are installed on the end face of the sliding frame away from the water supply pipe. The damper and the pressure sensor are both located between the limiting platform of the filter frame and the sliding frame. The pressure sensor is connected to the data of an external control system.

[0010] As a further improvement to the above technical solution, multiple dampers and pressure sensors are evenly distributed circumferentially relative to the sliding frame, and the dampers and pressure sensors are alternately arranged.

[0011] As a further improvement to the above technical solution, at least two drive components are provided in the circumferential direction relative to the filter pipe.

[0012] As a further improvement to the above technical solution, the driving component includes a lead screw motor and a transmission lead screw. The lead screw motor is fixedly mounted on the filter pipe, and the lead screw motor is drivingly connected to the transmission lead screw. The axis of the transmission lead screw is parallel to the axis of the filter pipe. The transmission lead screw passes through two clamping frames in sequence via threaded engagement. The threads of the two clamping frames and the transmission lead screw have opposite directions of rotation. The lead screw motor drives the transmission lead screw to rotate, which in turn drives the two clamping frames to move synchronously towards the filter element along the axial direction of the filter pipe, thereby clamping and fixing the filter element.

[0013] As a further improvement to the above technical solution, the filter assembly further includes a snap-fit ​​block. The filter pipe is provided with a guide rod corresponding to the snap-fit ​​block. The snap-fit ​​block is sleeved on the guide rod. The axis of the guide rod is perpendicular to the axis of the filter pipe. The snap-fit ​​block is driven by the transmission member and the transmission screw. The rotation of the transmission screw can drive the transmission member to move along the axis of the guide rod, thereby tightening and limiting the side of the filter element.

[0014] As a further improvement to the above technical solution, the transmission component includes a transmission shaft and a conveying screw. Both the transmission shaft and the conveying screw are mounted on the filter pipe. One end of the transmission shaft is connected to the transmission screw via a bevel gear, and the end of the transmission shaft away from the transmission screw is connected to the conveying screw via a gear. The conveying screw is threaded onto the locking block. The rotation of the transmission screw can drive the transmission shaft to rotate, which in turn drives the conveying screw to rotate, ultimately causing the transmission component to move along the axial direction of the guide rod.

[0015] As a further improvement to the above technical solution, the filter pipe is provided with a telescopic seat, the telescopic seat has a telescopic cavity, the telescopic cavity is connected to the mounting groove, the telescopic seat is equipped with a cylinder, the telescopic rod of the cylinder passes through the telescopic cavity, the end of the telescopic rod away from the cylinder is equipped with an electromagnet, the side of the filter element is provided with an adsorption part corresponding to the electromagnet, the electromagnet can be adsorbed and connected with the adsorption part; when the electromagnet is adsorbed and connected with the adsorption part, the cylinder drives the telescopic rod to move telescopically, which can pull the filter element to move radially along the filter pipe, the telescopic seat has an installation port communicating with the telescopic cavity, the end face of the installation port is perpendicular to the axis of the filter pipe, and the installation port is equipped with a sealing opening and closing door.

[0016] The present invention also provides an electric valve, including an electric valve filter device as described in any of the claims above.

[0017] Compared with related technologies, the beneficial effects of this utility model are:

[0018] The electric valve filtration device provided by this utility model aims to improve the working stability of the electric valve and reduce the risk of blockage caused by water impurities.

[0019] A filter pipe is installed at the inlet of the internal channel of the electric valve to facilitate the filtration of water flowing through the valve. To effectively filter impurities in the water, a filter element is passed through the mounting groove and placed in a suitable position inside the filter pipe. After placing the filter element, a clamping assembly is used to clamp and fix it inside the filter pipe to prevent it from shifting or loosening under the impact of water flow.

[0020] When the electric valve is opened by the motor inside the valve body, the water flowing through it first enters the filter pipe. Inside the filter pipe, the water passes through the filter element. Here, the filter element effectively performs its filtering function, trapping impurities in the water, while the filtered, clean water continues to flow forward and eventually passes through the electric valve. This method effectively reduces wear and clogging of the electric valve's internal structure caused by impurities in the water flow, significantly reducing the probability of blockage and extending the valve's service life.

[0021] Furthermore, the installation groove on the side wall of the filter pipe offers significant maintenance advantages. During actual use, filter elements gradually accumulate impurities over time, or may become clogged or damaged due to prolonged water flow. When these issues arise, operators no longer need to disconnect the entire pipe connection for filter element replacement and maintenance as in traditional methods. Simply by moving the clamping assembly to release the filter element, the operator can easily remove it from the installation groove. After removal, the filter element can be cleaned, repaired, or replaced with a new one. Then, the process is reversed, and the filter element is reinstalled in the filter pipe and clamped again using the clamping assembly. The entire process is simple and quick, enabling rapid disassembly and installation of filter elements, greatly improving the maintenance efficiency of the electric valve, ensuring its continuous and stable operation, and reducing production interruptions caused by improper maintenance or excessive maintenance time.

[0022] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model 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.

[0024] Figure 1 This is a schematic diagram of the electric valve filter device from one perspective in one embodiment of the present invention;

[0025] Figure 2 This invention provides a schematic diagram of the electric valve filter device from another perspective in one embodiment of the present invention.

[0026] Figure 3 This is a partial structural schematic diagram of the electric valve filter device from one perspective in one embodiment of the present invention;

[0027] Figure 4 It shows Figure 3 A magnified schematic diagram of the uniform distribution at point A in the middle;

[0028] Figure 5 A schematic diagram of the filter element from one perspective is shown in one embodiment of the present invention.

[0029] Explanation of key component symbols:

[0030] 100-Valve body; 110-Motor; 200-Filter assembly; 210-Filter pipe; 211-Mounting groove; 220-Filter element; 221-Filter plate; 222-Filter frame; 223-Sealing ring; 224-Sliding frame; 225-Damper; 226-Pressure sensor; 227-Adsorption part; 300-Clamping assembly; 310-Drive component; 311-Screw motor; 312-Transmission screw; 320-Clamping frame; 330-Snap-fit ​​block; 331-Guide rod; 340-Transmission component; 341-Transmission shaft; 342-Conveying screw; 400-Telescopic seat; 410-Cylinder; 411-Telescopic rod; 420-Electromagnet; 430-Mounting port; 431-Sealed opening and closing door. Detailed Implementation

[0031] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0032] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to 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 utility model.

[0033] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0034] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0035] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0036] Combination Figure 1 , Figure 2 , Figure 3 As shown, an embodiment of the present invention provides an electric valve filter device, including a filter assembly 200 and a clamping assembly 300.

[0037] The filter assembly 200 includes a filter pipe 210 and a filter element 220. One end of the filter pipe 210 is connected to the inlet of a channel inside the electric valve body 100, and the other end of the filter pipe 210 is connected to a water supply pipe. A mounting groove 211 corresponding to the filter element 220 is provided on the side of the filter pipe 210. The filter element 220 passes through the mounting groove 211 and is installed inside the filter pipe 210. A clamping assembly 300 is installed on the filter pipe 210 and is used to clamp and fix the filter element 220 installed inside the filter pipe 210.

[0038] The electric valve filtration device provided in this embodiment facilitates the filtration of water flowing through the electric valve by connecting a filter pipe 210 to the inlet of the internal channel of the electric valve body 100. To effectively filter impurities in the water, a filter element 220 is passed through the mounting groove 211 and placed in a suitable position inside the filter pipe 210. After placing the filter element 220, a clamping assembly 300 is used to clamp and fix it within the filter pipe 210, preventing displacement or loosening under the impact of water flow.

[0039] When the electric valve is opened by the motor 110 inside the valve body 100, the water flowing through the electric valve first enters the filter pipe 210. Inside the filter pipe 210, the water flows through the filter element 220. At this time, the filter element 220 fully performs its filtering function, trapping impurities in the water, while the filtered clean water continues to flow forward and eventually passes through the electric valve. In this way, the wear and blockage of the electric valve's internal structure by impurities in the water flow is effectively reduced, greatly decreasing the probability of blockage caused by water flowing through the electric valve and extending its service life.

[0040] Furthermore, the installation groove 211 on the side wall of the filter pipe 210 offers significant maintenance advantages. During actual use, the filter element 220 may gradually accumulate impurities over time, or become clogged or damaged due to prolonged water flow. In these situations, operators do not need to disconnect the entire pipe connection to replace and maintain the filter element 220 as in traditional methods. Simply by driving the clamping assembly 300 to release the clamp on the filter element 220, the operator can easily remove it directly from the installation groove 211. After removing the filter element 220, it can be cleaned, repaired, or replaced with a new one. Then, the reverse process is repeated to reinstall it back into the filter pipe 210 and clamp it again using the clamping assembly 300. The entire process is simple and quick, enabling rapid disassembly and installation of the filter element 220, greatly improving the maintenance efficiency of the electric valve, ensuring its continuous and stable operation, and reducing production interruptions caused by improper maintenance or excessive maintenance time.

[0041] In some specific embodiments, the clamping assembly 300 includes a driving member 310 and clamping frames 320. The driving member 310 is mounted on the filter pipe 210. There are two clamping frames 320, which are symmetrically arranged on both sides of the filter element 220. The sides of the clamping frames 320 are in sliding sealing fit with the inner sidewall of the filter pipe 210. The driving member 310 can drive the two clamping frames 320 to move closer to the filter element 220 and clamp and fix the filter element 220. By clamping and fixing the filter element 220 in two directions, it is easier to improve the fixing effect of the filter element 220 and to accurately limit the fixed position of the filter element 220, thus ensuring the assembly reliability of this embodiment.

[0042] In some specific embodiments, the filter element 220 includes a filter plate 221 and a filter frame 222. The filter plate 221 is disposed on the filter frame 222. The filter plate 221 is usually made of stainless steel filter mesh, sintered metal felt or multi-layer composite filter material, etc. Its pore size parameters are customized according to actual working conditions to achieve effective interception of impurities of different particle sizes.

[0043] To ensure reliable sealing between the filter element 220 and the electric valve body 100, sealing rings 223 matching the shape of the clamping frame 320 are installed on both ends of the filter frame 222. These sealing rings 223 are made of corrosion-resistant and aging-resistant silicone rubber or fluororubber, possessing excellent elastic recovery properties. When the filter element 220 is installed into the filter pipe 210, axial pressure is applied to the filter frame 222 by the clamping assembly 300 (such as a bolt fastening mechanism or a spring clamping device). The sealing rings 223 undergo controllable deformation, with the compression controlled within the design range of 15%-30%. At this time, the sealing rings 223 simultaneously form a double sealing contact zone with the bottom surface of the sealing groove of the filter frame 222 and the corresponding contact surface of the clamping frame 320, effectively compensating for any minor dimensional or positional errors that may exist during machining.

[0044] like Figure 5 As shown, in some specific embodiments, a sliding frame 224 is embedded within the filter frame 222. The sliding frame 224 can slide relative to the filter frame 222 along the axis of the filter pipe 210. The filter plate 221 is mounted on the sliding frame 224. A damper 225 and a pressure sensor 226 are mounted on the end face of the sliding frame 224 away from the water supply pipe. The damper 225 and the pressure sensor 226 are both located between the limiting platform of the filter frame 222 and the sliding frame 224. The pressure sensor 226 is connected to an external control system. Specifically, when water flows through the filter pipe 210, the intercepted impurities gradually accumulate on the surface of the filter plate 221 to form a filter cake layer, causing the fluid resistance to continuously increase. According to the principles of fluid mechanics, the pressure difference ΔP generated before and after the filter plate 221 is 0.5ρ(v1) / 2. 2 -v2 2 (where ρ is the fluid density, and v1 and v2 are the inlet and outlet velocities) will be directly converted into an axial thrust on the sliding frame 224. At this time, the sliding frame 224 will begin to move under the action of hydraulic pressure, overcoming the initial resistance of the damper 225. The amount of displacement is linearly related to the pressure difference change.

[0045] Pressure sensor 226 indirectly acquires differential pressure data by monitoring the displacement change of sliding frame 224. Its signal acquisition frequency is set to 10Hz and is transmitted to the external control system in real time via shielded cable or wireless connection. Damper 225 plays a dual role in this process: firstly, it provides a stable damping force (usually set to 0.2-0.5 N·m / rad) under normal operating conditions to prevent sliding frame 224 from oscillating due to water flow pulsation; secondly, it buffers the transmission of impact load through the damping effect when the differential pressure changes abruptly, protecting pressure sensor 226 from damage by instantaneous overload.

[0046] The control system incorporates an intelligent diagnostic algorithm that continuously analyzes the differential pressure-time curve fed back by pressure sensor 226. When the differential pressure rise rate exceeds 0.05 MPa / min or the sustained differential pressure value exceeds a preset threshold (usually set to 300% of the initial differential pressure), the system immediately triggers a three-level response mechanism: first, a red alarm message is displayed on the HMI interface, and a text message notification is sent to the maintenance personnel's mobile phone; if no response is received within 15 minutes, the backup filter channel is automatically activated and the current valve group is closed; finally, when the differential pressure value exceeds the safety limit (usually 0.8 MPa), the power supply to the electric valve is forcibly cut off to protect the equipment.

[0047] In some specific embodiments, multiple dampers 225 and pressure sensors 226 are evenly distributed around the sliding frame 224. The dampers 225 and pressure sensors 226 are alternately arranged to obtain more accurate data on the pressure difference change of the sliding frame 224 during operation, thus ensuring the reliability of this embodiment.

[0048] In some specific embodiments, at least two drive members 310 are provided circumferentially relative to the filter pipe 210. By driving the two clamping frames 320 from multiple positions, it is easy to ensure the stability of the clamping frames 320 during movement, and also to ensure the reliability of the clamping and fixing of the filter element 220 by the two clamping frames 320.

[0049] In some specific embodiments, the driving component 310 includes a lead screw motor 311 and a transmission lead screw 312. The lead screw motor 311 is fixedly mounted on the filter pipe 210, and the lead screw motor 311 is connected to the transmission lead screw 312. The axis of the transmission lead screw 312 is parallel to the axis of the filter pipe 210. The transmission lead screw 312 passes through two clamping frames 320 in sequence by means of threaded engagement. The threads of the two clamping frames 320 and the transmission lead screw 312 have opposite directions of rotation. The lead screw motor 311 drives the transmission lead screw 312 to rotate, which can drive the two clamping frames 320 to move synchronously towards the filter element 220 along the axial direction of the filter pipe 210, and clamp and fix the filter element 220. During the clamping action, the lead screw motor 311 receives a pulse signal from the control system and starts rotating at a uniform speed of 0.5 r / s, converting the rotational motion into linear motion through the lead screw thread. When the clamping frame 320 contacts the end face of the filter element 220, the system enters the pressure holding stage. At this time, the motor stall current is limited to within 150% of the rated value to prevent overload damage. The unique self-locking characteristic of the threaded fit plays a key role here: when the motor stops, the helix angle φ (approximately 3°) of the trapezoidal thread is less than the equivalent friction angle ρ (approximately 8.5°), forming a reliable mechanical self-locking. Even under the action of pipeline water pressure impact (maximum instantaneous pressure 1.2MPa), the clamping frame 320 will not shift or loosen.

[0050] This design achieves three major technical advantages through the organic combination of mechanical transmission and self-locking mechanism: First, the multi-tooth meshing characteristics of the threaded pair ensure uniform clamping force distribution, and actual measurement data shows that the standard deviation of the pressure on the 220 end face of the filter element is ≤0.05MPa; Second, the reverse thread configuration eliminates the problem of asynchronous clamping on both sides caused by the manufacturing error of the lead screw, and the synchronization error is controlled within ±0.1mm; Third, the self-locking structure eliminates the need for an additional braking device, simplifying the system structure and improving reliability.

[0051] like Figure 4 As shown, in some specific embodiments, the filter assembly 200 further includes a snap-fit ​​block 330. The filter pipe 210 is provided with a guide rod 331 corresponding to the snap-fit ​​block 330. The snap-fit ​​block 330 is sleeved on the guide rod 331. The axis of the guide rod 331 is perpendicular to the axis of the filter pipe 210. The snap-fit ​​block 330 is driven by the transmission member 340 and the transmission screw 312. The rotation of the transmission screw 312 can drive the transmission member 340 to move along the axis of the guide rod 331, thereby pressing and limiting the side of the filter element 220. This facilitates clamping and fixing the filter element 220 from the side, further ensuring the reliability of the filter element 220's fixed position within the filter channel.

[0052] In some specific embodiments, the transmission component 340 includes a transmission shaft 341 and a conveying screw 342. Both the transmission shaft 341 and the conveying screw 342 are mounted on the filter pipe 210. One end of the transmission shaft 341 is connected to the transmission screw 312 via a bevel gear, and the end of the transmission shaft 341 facing away from the transmission screw 312 is connected to the conveying screw 342 via a gear. The conveying screw 342 is threaded onto the locking block 330. The rotation of the transmission screw 312 can drive the transmission shaft 341 to rotate, which in turn drives the conveying screw 342 to rotate, ultimately driving the transmission component 340 to move along the axial direction of the guide rod 331, pressing and fixing the filter element 220, further ensuring the assembly reliability of the filter element 220 and the filter pipe 210.

[0053] In some specific embodiments, the filter pipe 210 is provided with a telescopic seat 400, and the telescopic seat 400 has a telescopic cavity that communicates with the mounting groove 211. A cylinder 410 is mounted on the telescopic seat 400, and the telescopic rod 411 of the cylinder 410 passes through the telescopic cavity. An electromagnet 420 is mounted on the end of the telescopic rod 411 facing away from the cylinder 410. An adsorption portion 227 corresponding to the electromagnet 420 is provided on the side of the filter element 220. The electromagnet 420 can be adsorbed and connected to the adsorption part 227; when the electromagnet 420 is adsorbed and connected to the adsorption part 227, the cylinder 410 drives the telescopic rod 411 to extend and retract, which can pull the filter element 220 to move radially along the filter pipe 210. The telescopic seat 400 is provided with an installation port 430 communicating with the telescopic cavity. The end face of the installation port 430 is perpendicular to the axis of the filter pipe 210. A sealing opening and closing door 431 is installed on the installation port 430.

[0054] When pressure sensor 226 detects a differential pressure exceeding a set threshold, it sends an alarm to the PLC control system via a current signal. The control system then executes a three-stage response procedure:

[0055] Adsorption preparation stage: The telescopic rod 411 of cylinder 410 extends to its limit position, and electromagnet 420 is energized (DC24V, current 2A) to generate adsorption force, which adsorbs and connects with the adsorption part 227 of filter element 220.

[0056] During the loosening and transfer stage: the control system sends a reverse command to the screw motor 311 of the clamping assembly 300, and the clamping frames 320 on both sides move away from the filter element 220 simultaneously. At the same time, the cylinder 410 controls the telescopic rod 411 to retract, dragging the filter element 220 into the telescopic cavity.

[0057] Replacement and reset phase: The operator opens the sealing door 431, takes out the failed filter element 220 and puts in the new element, closes the sealing door 431 and confirms the locking signal, and the control system drives each component to reset in the reverse sequence. The new filter element 220 is pushed into the filter channel and clamped and fixed.

[0058] The above-described process of replacing filter element 220 can greatly improve the maintenance efficiency of the electronically controlled valve and ensure the continuity of the entire equipment operation.

[0059] This utility model also provides an electric valve, which can be divided into on / off type, regulating type and other types of electric valves according to its different application scenarios. It includes the sealing component in the above embodiment. The electric valve has all the beneficial effects of the electric valve filtering device, which will not be described in detail here.

[0060] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0061] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. An electric valve filter device, characterized in that, include: A filter assembly (200) includes a filter pipe (210) and a filter element (220). One end of the filter pipe (210) is connected to the inlet of a channel inside the electric valve body (100), and the other end of the filter pipe (210) is connected to a water supply pipe. A mounting groove (211) corresponding to the filter element (220) is provided on the side of the filter pipe (210). The filter element (220) passes through the mounting groove (211) and is installed inside the filter pipe (210). A clamping assembly (300) is installed on the filter pipe (210) to clamp and fix the filter element (220) installed in the filter pipe (210).

2. The electric valve filter device according to claim 1, characterized in that, The clamping assembly (300) includes a drive member (310) and a clamping frame (320). The drive member (310) is mounted on the filter pipe (210). There are two clamping frames (320), which are symmetrically arranged on both sides of the filter element (220). The drive member (310) can drive the two clamping frames (320) to move closer to the filter element (220) and clamp and fix the filter element (220).

3. The electric valve filter device according to claim 2, characterized in that, The filter element (220) includes a filter plate (221) and a filter frame (222). The filter plate (221) is disposed on the filter frame (222). A sealing ring (223) corresponding to the clamping frame (320) is provided between the two end faces of the filter frame (222). The sealing ring (223) is located between the filter frame (222) and the corresponding clamping frame (320).

4. The electric valve filter device according to claim 3, characterized in that, The filter frame (222) is embedded with a sliding frame (224). The sliding frame (224) can slide relative to the filter frame (222) along the axis of the filter pipe (210). The filter plate (221) is mounted on the sliding frame (224). A damper (225) and a pressure sensor (226) are mounted on the sliding frame (224) away from the end face of the water supply pipe. The damper (225) and the pressure sensor (226) are both located between the limiting platform of the filter frame (222) and the sliding frame (224). The pressure sensor (226) is connected to the external control system.

5. The electric valve filter device according to claim 2, characterized in that, At least two drive units (310) are provided circumferentially relative to the filter pipe (210).

6. The electric valve filter device according to claim 2, characterized in that, The driving component (310) includes a lead screw motor (311) and a transmission lead screw (312). The lead screw motor (311) is fixedly mounted on the filter pipe (210). The lead screw motor (311) is connected to the transmission lead screw (312) in a transmission manner. The axis of the transmission lead screw (312) is parallel to the axis of the filter pipe (210). The transmission lead screw (312) passes through the two clamping frames (320) in sequence by means of threaded engagement. The threads of the two clamping frames (320) and the transmission lead screw (312) have opposite directions of rotation. The lead screw motor (311) drives the transmission lead screw (312) to rotate, which can drive the two clamping frames (320) to move synchronously toward the filter element (220) along the axial direction of the filter pipe (210) and clamp and fix the filter element (220).

7. The electric valve filter device according to claim 6, characterized in that, The filter assembly (200) further includes a snap-fit ​​block (330). The filter pipe (210) is provided with a guide rod (331) corresponding to the snap-fit ​​block (330). The snap-fit ​​block (330) is sleeved on the guide rod (331). The axis of the guide rod (331) is perpendicular to the axis of the filter pipe (210). The snap-fit ​​block (330) is driven by the transmission member (340) and the transmission screw (312). The rotation of the transmission screw (312) can drive the transmission member (340) to move along the axis of the guide rod (331) to tighten and limit the side of the filter assembly (220).

8. The electric valve filter device according to claim 7, characterized in that, The transmission component (340) includes a transmission shaft (341) and a conveying screw (342). Both the transmission shaft (341) and the conveying screw (342) are mounted on the filter pipe (210). One end of the transmission shaft (341) is connected to the transmission screw (312) via a bevel gear. The end of the transmission shaft (341) away from the transmission screw (312) is connected to the conveying screw (342) via a gear. The conveying screw (342) is threaded onto the snap-fit ​​block (330). The rotation of the transmission screw (312) can drive the transmission shaft (341) to rotate, thereby driving the conveying screw (342) to rotate, and finally driving the transmission component (340) to move along the axial direction of the guide rod (331).

9. The electric valve filter device according to any one of claims 1 to 8, characterized in that, The filter pipe (210) is provided with a telescopic seat (400), and the telescopic seat (400) is provided with a telescopic cavity. The telescopic cavity is connected to the mounting groove (211). The telescopic seat (400) is equipped with a cylinder (410). The telescopic rod (411) of the cylinder (410) passes through the telescopic cavity. An electromagnet (420) is installed at the end of the telescopic rod (411) away from the cylinder (410). The side of the filter element (220) is provided with an adsorption part (227) corresponding to the electromagnet (420). The electromagnet (420) The electromagnet (420) can be adsorbed and connected with the adsorption part (227); when the electromagnet (420) is adsorbed and connected with the adsorption part (227), the cylinder (410) drives the telescopic rod (411) to move in and out, which can pull the filter element (220) to move radially along the filter pipe (210). The telescopic seat (400) is provided with an installation port (430) that communicates with the telescopic cavity. The end face of the installation port (430) is perpendicular to the axis of the filter pipe (210). The installation port (430) is provided with a sealing opening and closing door (431).

10. An electric valve, characterized in that, Includes the electric valve filter device as described in any one of claims 1 to 9.

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