Y-type filter with a blowdown valve

Abstract

The present application relates to separation, more particularly to the technical field of valve filter, and disclose a Y type filter with a blowdown valve, including Y type filter body, the Y type filter body is provided with filter part, the filter part is installed with sealing part, the sealing part is installed with scale prevention part, the sealing part is provided with the control of pollution part, the sealing part is connected with the blowdown part, the filter part includes front filter port, the front filter port is inserted in the filter port of Y type filter body, the inner wall of Y type filter body is fixedly connected with clamping block, the front filter port is provided with clamping groove, dynamic rotation scale prevention is adopted, static deposition problem is completely solved, the motor drives dynamic filter to rotate, makes the impurity evenly distributed and is thrown out by centrifugal force, avoids the defect that traditional fixed filter screen unilateral is blocked, compaction is scaled, prolongs the maintenance cycle of filter screen, reduces filter screen wear and tear and replacement cost.

Description

Technical Field

[0001] This invention relates to the field of separation, and more specifically to the field of valve filter technology, specifically a Y-type filter with a built-in drain valve. Background Technology

[0002] Y-type filters are a type of general-purpose filtration device widely used in industrial and civil fluid transport systems such as petrochemical, water supply and drainage, HVAC, metallurgy and power. Their core function is to trap solid particulate impurities in the fluid, protecting downstream precision equipment such as pumps, valves, and instruments from wear, blockage or damage, and ensuring the stable operation of the entire fluid system.

[0003] The traditional Y-type filter mainly consists of three parts: a Y-type valve body, a filter screen assembly, and end caps. During operation, fluid flows in from the filter inlet, is filtered by the filter screen, and the clean fluid flows out from the outlet through the filter screen pores, while solid impurities are trapped inside the filter screen.

[0004] In long-term practical applications, traditional Y-type filters lack a built-in drainage structure. When the amount of impurities trapped by the filter screen reaches a certain level, causing the pressure difference between the filter inlet and outlet to exceed the threshold, the system needs to be shut down for drainage and maintenance. During this process, the upstream and downstream shut-off valves must first be closed to drain the fluid from the filter. Then, the end caps must be removed, the filter screen taken out for cleaning, and after cleaning, the filter screen and end caps reassembled. Finally, the shut-off valves are opened to restore system operation. This operation method is not only cumbersome and time-consuming, but also causes intermittent shutdowns of the entire fluid transport system. For continuous production industrial scenarios, this results in significant capacity losses and downtime costs.

[0005] Traditional Y-type filters have a fixed filter screen assembly, while the flow channels of the Y-type valve body are angled. When fluid enters the filter chamber, it creates a biased flow field. Most solid impurities concentrate and deposit on the side of the filter screen facing the incoming fluid, while the other side has relatively less impurity deposition. This uneven deposition leads to rapid clogging of the pores on one side of the filter screen, significantly shortening the effective maintenance cycle and causing turbulent flow within the filter chamber, resulting in abnormally high local flow velocities. This further exacerbates the compaction and scaling of impurities in the clogged areas of the filter screen.

[0006] Traditional Y-type filters cannot monitor the impurity retention status of the filter screen in real time. They can only determine whether maintenance is needed through periodic inspections or manual readings of differential pressure gauges. If inspections are not timely, filter screen blockage will lead to a decrease in system fluid flow, an increase in energy consumption, and in severe cases, filter screen damage, allowing unfiltered fluid containing impurities to directly enter downstream equipment and cause equipment failure. Summary of the Invention

[0007] (a) Technical problems to be solved

[0008] To address the shortcomings of existing technologies, this invention provides a Y-type filter with a built-in drain valve, which solves the problems of cumbersome drain operation requiring shutdown, uneven impurity deposition on the filter screen leading to clogging and scaling, lack of real-time monitoring, and untimely maintenance associated with traditional Y-type filters.

[0009] (II) Technical Solution

[0010] To achieve the above objectives, the present invention provides the following technical solution: a Y-type filter with a built-in drain valve, comprising a Y-type filter body, a filter section disposed within the Y-type filter body, a sealing section installed on the filter section, an anti-scaling section installed on the sealing section, a dirt control section disposed within the sealing section, and a drain section connected to the sealing section.

[0011] Preferably, the filter section includes a front filter port, which is inserted into the filter port of the Y-type filter body. A locking block is fixedly connected to the inner wall of the Y-type filter body. A locking groove is provided on the front filter port, and the locking groove engages with the locking block. The front filter port has a cross-sectional structure on one side.

[0012] Preferably, a dynamic filter is rotatably connected to the other side port of the front filter port, and a connecting ring is fixedly connected to one end of the dynamic filter. The connecting ring extends to the outside of the port of the Y-shaped filter body and is fixedly fitted with a toothed ring.

[0013] Preferably, the sealing part includes a sealing seat, which is a cylindrical structure with openings at both ends. A sealing ring is fixedly connected to one end of the sealing seat, and a sealing ring is rotatably sleeved on the extension end of the connecting ring. A connecting arm is provided between the sealing ring and the sealing ring.

[0014] Preferably, the connecting arm has a U-shaped structure, and the two lug ends of the connecting arm are fixedly connected to sealing ring one and sealing ring two respectively. The teeth of the toothed ring are located between the lug ends of the connecting arm, and the sealing seat is fixedly installed on the filter port of the Y-shaped filter body through sealing ring two.

[0015] Preferably, the anti-scaling part includes a cover, which is fixedly installed on one side of the outer wall of the sealing seat. A motor is installed on the inner wall of the cover, and the output shaft of the motor is connected to a gear, which meshes with a gear ring.

[0016] Preferably, a sealing cover is fixedly installed on the inner wall of the other end of the sealing seat, a chassis is installed on the sealing cover, a microprocessor and a power system are installed inside the chassis, a push-button switch is installed on the outer wall of the chassis, and the motor is electrically connected to the microprocessor through the push-button switch.

[0017] Preferably, the contamination control unit includes a first sealing column, which is a semi-cylindrical structure. The arc surface of the first sealing column is fixedly connected to the inner wall of the sealing seat. An electric actuator is embedded at one end of the first sealing column, which is electrically connected to the microprocessor. A dynamic sealing column is provided inside the sealing seat. The dynamic sealing column includes a sealing sheet and a second sealing column with the same structure as the first sealing column. The sealing sheet and the second sealing column are fixedly connected. The movable end of the electric actuator is fixedly connected to the sealing sheet.

[0018] Preferably, the first sealing post and the second sealing post are fitted together, the second sealing post is slidably connected to the inner wall of the sealing seat, one end of both the first sealing post and the second sealing post extends to the inner wall of the connecting ring, and a forked rod is fixedly connected to the end face of the second sealing post.

[0019] Preferably, the sewage discharge part includes a sewage discharge port, which is integrally connected to the outer wall of the sealing seat and communicates with the sealing seat. One end of the sewage discharge port is open, and a slide is fixedly connected to the outer wall of the open end of the sewage discharge port. A baffle plate is fitted between the slides at the open end of the sewage discharge port. A groove is provided on the baffle plate to slide and cooperate with the slide. A slide arm is fixedly connected to the outer wall of the groove. A support arm is fixedly connected to one end of the slide arm. The support arm slides through the sealing cover and is fixedly connected to the sealing sheet of the dynamic sealing column. A touch plate is fixedly connected to the support arm, and the touch plate abuts against the push button switch.

[0020] (III) Beneficial Effects

[0021] Compared with the prior art, the present invention provides a Y-type filter with a built-in drain valve, which has the following beneficial effects:

[0022] 1. This Y-type filter with a built-in drain valve adopts dynamic rotation anti-scaling, which completely solves the problem of static deposition. The dynamic filter is driven by a motor to rotate, so that impurities are evenly distributed and thrown out by centrifugal force. This avoids the defects of traditional fixed filter screens, such as one-sided clogging and compaction of scale, which extends the maintenance cycle of the filter screen and reduces the wear and replacement cost of the filter screen.

[0023] 2. This Y-type filter with its own drain valve allows for non-stop draining, ensuring continuous system operation. Intermittent pre-stored scale discharge does not require shutting down the system or disassembling parts, avoiding the production capacity loss caused by traditional filter shutdowns for draining and meeting the needs of continuous industrial production.

[0024] 3. This Y-type filter with a built-in drain valve adopts a combination of sealing and draining to achieve leak-free scale removal. Through the linkage design of sealing column one and sealing column two with the baffle plate, the external drain outlet is blocked and the internal channel is opened when the scale is pre-stored. The reverse operation is performed when the scale is discharged to ensure that the fluid does not leak or pollute during the discharge process. At the same time, the pre-stored scale is isolated from the fluid channel and does not affect the water circulation quality.

[0025] 4. This Y-type filter with a built-in drain valve adopts a front filter port cross-section design to adapt to Y-type flow channels with different angles. The rotation speed of the dynamic filter is adjustable, and the sealing part adopts a multi-seal structure, which enables it to adapt to fluid media in different fields such as petrochemical, water supply and drainage, and HVAC, significantly improving its versatility.

[0026] 5. This Y-type filter with a built-in drain valve uses a microprocessor to achieve closed-loop control of intermittent self-inspection, automatic dirt storage, and automatic scale discharge. It eliminates the need for frequent manual inspections and operations, requiring only periodic checks of vulnerable components such as the motor and electric actuator, thus reducing manual maintenance costs and operational risks. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of a Y-type filter with a built-in drain valve proposed in this invention;

[0028] Figure 2 This is a schematic diagram of the other side of the overall structure of the invention;

[0029] Figure 3 This is an internal sectional view of the Y-type filter body of the present invention;

[0030] Figure 4 This is a plan view of the filter section of the present invention;

[0031] Figure 5 This is a diagram showing the fit between the filter section and the sealing section of the present invention;

[0032] Figure 6 This is a diagram showing the fit between the sealing part and the contamination control part of the present invention;

[0033] Figure 7 This is a schematic diagram of the anti-scaling part of the present invention;

[0034] Figure 8 This is a diagram showing the cooperation between the pollution control section and the sewage discharge section of the present invention;

[0035] Figure 9 This is a schematic diagram of the structure of the sealing column and the baffle plate of the present invention.

[0036] In the diagram: 1. Y-type filter body; 2. Filter section; 21. Front filter port; 22. Locking block; 23. Locking groove; 24. Dynamic filter; 25. Connecting ring; 26. Toothed ring; 3. Sealing section; 31. Sealing seat; 32. Sealing ring one; 33. Sealing ring two; 34. Connecting arm; 4. Anti-scaling section; 41. Cover; 42. Motor; 43. Sealing cover; 44. Casing; 45. Push button switch; 5. Sludge control section; 51. Sealing column one; 52. Electric push rod; 53. Dynamic sealing column; 54. Forked rod; 6. Sludge discharge section; 61. Sludge outlet; 62. Slide rail; 63. Baffle plate; 64. Slide groove; 65. Slide arm; 66. Support arm; 67. Contact plate. Detailed Implementation

[0037] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0038] Please see Figure 1 - Figure 9 The present invention provides a Y-type filter with a built-in drain valve, including a Y-type filter body 1, which serves as the core load-bearing structure. Its flow channels are distributed in a typical Y-shaped angle. A filter section 2 is provided inside the Y-type filter body 1. A sealing section 3 is installed on the filter section 2. An anti-scaling section 4 is installed on the sealing section 3. A dirt control section 5 is provided inside the sealing section 3. A drain section 6 is connected to the sealing section 3.

[0039] In this invention, the filter section 2 includes a front filter port 21, which is inserted into the filter port of the Y-type filter body 1. A locking block 22 is fixedly connected to the inner wall of the Y-type filter body 1. A locking groove 23 is provided on the front filter port 21, and the locking groove 23 engages with the locking block 22. The front filter port 21 has a cut-out structure on one side, and the angle between this cut-out and the inner wall of the Y-type filter body 1 is completely flush, forming a seamless transition surface. This fundamentally avoids the accumulation of dirt in the front filter port 21 caused by interface steps or gaps in traditional filters. To address the issue of the outer wall surface, ensuring unobstructed and stagnant fluid entry, a dynamic filter 24 is rotatably connected to the other side of the front filter port 21. A connecting ring 25 is fixedly connected to one end of the dynamic filter 24. The connecting ring 25 extends to the outside of the port of the Y-type filter body 1 and is fixedly fitted with a toothed ring 26. As the core filter element, the dynamic filter 24 extends to the outside of the port of the Y-type filter body 1 through the connecting ring 25 fixed at one end. The toothed ring 26 fixedly fitted on the connecting ring 25 becomes the key node for power transmission.

[0040] Furthermore, the sealing part 3 includes a sealing seat 31, which is a cylindrical structure with openings at both ends. A sealing ring 32 is fixedly connected to one end of the sealing seat 31, and a sealing ring 33 is rotatably fitted onto the extended end of the connecting ring 25. Both the sealing ring 32 and the sealing ring 33 are made of corrosion-resistant metal. A connecting arm 34 is provided between the sealing ring 32 and the sealing ring 33. The connecting arm 34 is a U-shaped structure, and its two lugs are fixedly connected to the sealing ring 32 and the sealing ring 33, respectively. The teeth of the toothed ring 26 are located between the lugs of the connecting arm 34. The sealing seat 31 is fixedly installed on the filter port of the Y-type filter body 1 through the sealing ring 33. The cylindrical structure with openings at both ends of the sealing seat 31 provides installation space for the dirt control part 5 and, through the cooperation of the sealing ring 32 and the connecting arm 34, achieves a rotational seal between the connecting ring 25 and the sealing seat 31 to prevent fluid leakage.

[0041] In this embodiment, the anti-scalding part 4 includes a cover 41, which is fixedly installed on one side of the outer wall of the sealing seat 31. A motor 42 is installed on the inner wall of the cover 41. The motor 42 is a low-speed DC motor, which is equipped with speed control by a microprocessor. The rotation speed can be adjusted according to different working conditions. The output shaft of the motor 42 is connected to a gear, which meshes with a gear ring 26 to form a power transmission path. The meshing adopts a precision module design, which has high transmission efficiency and low noise. A sealing cover 43 is fixedly installed on the inner wall of the other end of the sealing seat 31. A chassis 44 is installed on the sealing cover 43. The chassis 44 contains a microprocessor and a power system. The power system uses DC power supply and is equipped with a backup battery to ensure the stability of the equipment operation. A push-button switch 45 (LA167-D11BN) is installed on the outer wall of the chassis 44. The motor 42 is electrically connected to the microprocessor through the push-button switch 45. The start and stop control of the motor 42 is realized through the push-button switch 45, which constitutes the electrical control core.

[0042] It is worth noting that the contamination control unit 5 includes a sealing column 51, which is a semi-cylindrical structure. The arc surface of the sealing column 51 is fixedly connected to the inner wall of the sealing seat 31. One end of the sealing column 51 is embedded with an electric actuator 52, which is electrically connected to the microprocessor and can achieve precise extension and retraction. A dynamic sealing column 53 is provided inside the sealing seat 31. The dynamic sealing column 53 includes a sealing sheet and a second sealing column with the same structure as the sealing column 51. The sealing sheet and the second sealing column are fixedly connected. The movable end of the electric actuator 52 is fixedly connected to the sealing sheet. The sealing column 51 and the sealing column 52 are fixedly connected to each other. The two sealing columns fit together. The mating surfaces of the sealing column 51 and the sealing column 2 are precision machined to ensure that gaps only occur at preset positions during sliding, thus preventing fluid leakage from unexpected locations. The sealing column 2 is slidably connected to the inner wall of the sealing seat 31. The sealing column 2 slides and engages with the inner wall of the sealing seat 31, and forms a complete cylindrical structure when it is fully fitted with the sealing column 51. One end of both the sealing column 51 and the sealing column 2 extends to the inner wall of the connecting ring 25. A forked rod 54 is fixedly connected to the end face of the sealing column 2. The forked rod 54 can help guide fluid and dirt, preventing local accumulation.

[0043] It is worth noting that the sewage discharge section 6 includes a sewage discharge port 61, which is integrally connected to the outer wall of the sealing seat 31 and communicates with the sealing seat 31. One end of the sewage discharge port 61 is open, and a slide rail 62 is fixedly connected to the outer wall of the open end of the sewage discharge port 61. A baffle plate 63 is attached between the slide rails 62 at the open end of the sewage discharge port 61. The contact surface between the baffle plate 63 and the sewage discharge port 61 is made of wear-resistant sealing material to ensure the sealing performance during sealing and prevent leakage of pre-stored dirt. A slide groove 64 is provided on the baffle plate 63 to slide and cooperate with the slide rail 62. A slide arm 65 is fixedly connected to the outer wall of the slide groove 64. A support arm 66 is fixedly connected to one end of the slide arm 65. The support arm 66 slides through the sealing cover 43 and is fixedly connected to the sealing plate of the dynamic sealing column 53. A touch plate 67 is fixedly connected to the support arm 66, and the touch plate 67 abuts against the push button switch 45.

[0044] Working principle: The front filter port 21 of the filter section 2 is precisely engaged with the locking block 22 on the inner wall of the Y-type filter body 1 through the locking groove 23, achieving axial and circumferential positioning; In the initial state, the sealing column 1 51 and the sealing column 2 are completely fitted together, jointly blocking the inner channel of the connecting ring 25, and the baffle plate 63 is far away from the drain port 61 and does not form an obstruction; The touch plate 67 presses the button switch 45, and after the microprocessor receives the signal, it controls the motor 42 to be in the start state. The entire system is ready and waits for the fluid to enter before entering the normal operation stage.

[0045] When fluid enters the Y-type filter body 1, the system immediately enters the normal filtration and dynamic anti-scaling stage. The core objective is to achieve uniform filtration through the rotation of the dynamic filter 24, while intermittently discharging some deposited dirt to avoid static scaling. The fluid flows in from the inlet of the Y-type filter body 1 and is first guided by the pre-filter port 21. Because the cross-section of the pre-filter port 21 is flush with the inner wall of the Y-type body, the fluid does not need to bypass the interface obstruction and can directly and smoothly enter the filtration area without forming eddies or dirt deposits at the interface.

[0046] At this time, as the touch panel 67 continuously presses against the button switch 45, the microprocessor triggers the motor 42 to start. The output shaft of the motor 42 drives the gear to rotate, and the gear meshes with the gear ring 26 on the connecting ring 25, thereby driving the connecting ring 25 and the dynamic filter 24 to rotate synchronously. The rotation direction of the dynamic filter 24 is adapted to the fluid flow direction, and its rotation speed is controlled by the microprocessor according to preset parameters (fluid viscosity, preset anti-fouling frequency). It is usually kept in a low-speed stable rotation state, which ensures the filtration effect and avoids increased energy consumption or flow field disturbance due to excessive rotation.

[0047] The rotation of the dynamic filter 24 fundamentally solves the problem of uneven impurity deposition in traditional fixed filter screens: when the fluid impacts the rotating filter screen, the impurities cannot be concentrated on a single flow-facing side, but are evenly distributed on the filter screen surface under the combined action of centrifugal force and fluid impact force, and most of the light, free impurities are thrown to the edge area of ​​the filter screen by centrifugal force; at the same time, during this stage, the electric push rod 52 of the dirt control section 5 is in a retracted state, the sealing column 1 51 and the sealing column 2 remain in a close and sealed state, and the baffle plate 63 of the sewage discharge section 6 is in an open position away from the sewage outlet 61 because the support arm 66 is not under tension.

[0048] Throughout the normal filtration phase, the sealing rings 32 and 33 of the sealing part 3 maintain good sealing performance: the sealing ring 33 is fitted onto the extension end of the connecting ring 25, which not only meets the dynamic sealing requirements when the connecting ring 25 rotates, but also prevents fluid leakage from the gap between the connecting ring 25 and the sealing seat 31; at this time, the main flow channel of the fluid remains unobstructed: the clean fluid filtered by the dynamic filter 24 enters the outlet side of the Y-type filter body 1 through the filter screen pores and is transported to the downstream equipment. The entire water circulation process is not affected by the sewage discharge operation, the flow rate is stable, the pressure loss is small, and it fully meets the requirements of continuous operation of the industrial system.

[0049] To achieve thorough wastewater discharge without affecting system operation, the filter is equipped with an intermittent self-test program, which is initiated by the microprocessor at preset time intervals to enter the dirt pre-storage stage. The core logic of this stage is to guide stubborn or heavily deposited dirt on the filter screen surface into the drain outlet 61 for pre-storage without interrupting water circulation, thus avoiding fluid leakage or flow fluctuations caused by direct dirt discharge.

[0050] When the intermittent self-test program is triggered, the microprocessor first sends an extension signal to the electric actuator 52. The movable end of the electric actuator 52 extends outward, pushing the sealing plate of the dynamic sealing column 53 to slide along the inner wall of the sealing seat 31. Since the sealing column 2 is fixedly connected to the sealing plate, and the sealing column 2 and the inner wall of the sealing seat 31 are in sliding fit, the sliding of the sealing plate directly drives the sealing column 2 to move synchronously, creating a gap between the sealing column 2 and the sealing column 51. This gap is exactly aligned with the inner port of the drain outlet 61, thereby exposing the communication channel between the drain outlet 61 and the inside of the sealing seat 31.

[0051] As the second sealing column slides, the support arm 66, which is fixedly connected to the sealing plate, moves synchronously. The support arm 66 extends outward through the through hole of the sealing cover 43, driving the sliding arm 65 and the baffle plate 63 to slide along the slide rail 62. Due to the precise fit between the slide groove 64 of the baffle plate 63 and the slide rail 62 of the drain outlet 61, the baffle plate 63 gradually approaches the opening end of the drain outlet 61 during the sliding process, and finally completely blocks the external outlet of the drain outlet 61, realizing the state of the drain outlet 61 being connected inside and blocked outside. This structural linkage design cleverly solves the contradiction between sewage discharge and leakage prevention: at this time, dirt enters the interior of the drain outlet 61 through the gap between the first sealing column 51 and the second sealing column. Because the outside of the drain outlet 61 is blocked by the baffle plate 63, the dirt cannot leak out and can only be pre-stored inside the drain outlet 61. Meanwhile, the mainstream fluid still flows normally through the filter screen pores of the dynamic filter 24 and does not come into contact with the pre-stored dirt inside the drain outlet 61. The continuity and cleanliness of the water circulation are not affected.

[0052] As the support arm 66 moves, the contact plate 67 fixed on it moves away from the button switch 45. The microprocessor no longer receives the trigger signal from the button switch 45, and immediately controls the motor 42 to stop running, and the dynamic filter 24 to stop rotating. During the dirt pre-storage stage, the filter stops rotating to avoid excessive centrifugal force causing the pre-storage dirt to be re-rolled into the fluid channel. At the same time, it reduces the wear of the filter screen during the dirt cleaning process, ensuring that the pre-storage process is stable and efficient. At this time, a certain amount of stubborn dirt is collected in the drain port 61, and the inlet and outlet fluids of the Y-type filter body 1 remain unobstructed. There is no shutdown or sudden drop in flow, which perfectly solves the pain point of traditional filters requiring shutdown for sewage discharge.

[0053] When the pre-stored dirt reaches the preset time, the microprocessor starts the reset program, and the filter enters the reset and descaling stage to complete the discharge of the pre-stored dirt and restore normal filtration status; the core action of this stage is the reverse linkage of each component.

[0054] The microprocessor first sends a contraction signal to the electric actuator 52. The movable end of the electric actuator 52 drives the sealing plate to slide in the opposite direction. The second sealing column of the dynamic sealing column 53 then moves closer to the first sealing column 51 until the two are completely fitted again, forming a complete cylindrical structure and sealing the inner channel of the connecting ring 25. This reset action cuts off the communication channel between the drain port 61 and the inside of the sealing seat 31, so that the pre-stored dirt is no longer associated with the fluid channel, ensuring that the clean fluid will not be contaminated during subsequent dirt discharge.

[0055] As the second sealing column resets, the support arm 66 moves in the opposite direction, causing the sliding arm 65 and the baffle plate 63 to slide along the slide rail 62 away from the drain port 61, gradually opening the external outlet of the drain port 61. When the first sealing column 51 and the second sealing column are fully in contact, the baffle plate 63 is completely disengaged from the drain port 61, and both the internal and external channels of the drain port 61 are unobstructed. The dirt stored therein is quickly discharged from the drain port 61 to the outside of the filter under the push of gravity and residual fluid, completing one dirt cleaning.

[0056] As the support arm 66 resets, the touch plate 67 approaches and presses the button switch 45 again. The button switch 45 sends a trigger signal to the microprocessor, which controls the motor 42 to start again. The gear drives the gear ring 26 and the dynamic filter 24 to resume rotation, and the filter re-enters the normal filtration and dynamic anti-scaling stage. At this time, the drain port 61 has been emptied of dirt, and the baffle plate 63 remains open.

[0057] The key to the reset and descaling stage lies in the synchronization and precision of the actions of each component. This characteristic is achieved through the synergy of structural design and electrical control: the extension and retraction stroke of the electric push rod 52 is precisely controlled by a microprocessor to ensure that the sliding distance of the sealing column 2 just meets the opening and sealing requirements of the drain port 61; the connection rigidity between the support arm 66 and the baffle plate 63 has been optimized to avoid jamming or displacement during sliding; the contact position between the touch plate 67 and the push button switch 45 has been calibrated to ensure that the start and stop timing of the motor 42 is perfectly matched with the actions of the sealing column and the baffle plate 63; the entire reset process is fast and stable, and the interference to the system operation is almost negligible.

[0058] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A Y-type filter with a built-in drain valve, comprising a Y-type filter body (1), characterized in that: The Y-type filter body (1) is provided with a filter section (2) for dynamic anti-fouling. The filter section (2) is equipped with a sealing section (3) for ensuring the sealing of filtration and sewage discharge. The sealing section (3) is equipped with an anti-scaling section (4) for preventing static scaling. The sealing section (3) is provided with a dirt control section (5) for storing dirt, preventing leakage and circulating water. The sealing section (3) is connected to a sewage discharge section (6) for pre-storing dirt and automatic discharge without stopping the machine. The filter section (2) includes a front filter port (21), which is inserted into the filter port of the Y-type filter body (1). A locking block (22) is fixedly connected to the inner wall of the Y-type filter body (1). A slot (23) is provided on the front filter port (21), and the slot (23) is engaged with the locking block (22). One side of the front filter port (21) has a cross-section structure. A dynamic filter (24) is rotatably connected to the other side port of the front filter port (21). A connecting ring (25) is fixedly connected to one end of the dynamic filter (24). The connecting ring (25) extends to the outside of the port of the Y-type filter body (1) and is fixedly fitted with a toothed ring (26). The anti-scalding part (4) includes a cover (41), which is fixedly installed on one side of the outer wall of the sealing seat (31). A motor (42) is installed on the inner wall of the cover (41). The output shaft of the motor (42) is connected to a gear, which meshes with a gear ring (26). The sealing part (3) includes a sealing seat (31), and a sealing cover (43) is fixedly installed on the inner wall of the other end of the sealing seat (31). A chassis (44) is installed on the sealing cover (43). A microprocessor and a power system are provided inside the chassis (44). A push-button switch (45) is installed on the outer wall of the chassis (44). The motor (42) is electrically connected to the microprocessor through the push-button switch (45). The pollution control unit (5) includes a sealing column one (51), which is a semi-cylindrical structure. The arc surface of the sealing column one (51) is fixedly connected to the inner wall of the sealing seat (31). One end of the sealing column one (51) is embedded with an electric push rod (52). The electric push rod (52) is electrically connected to the microprocessor. The sealing seat (31) is provided with a dynamic sealing column (53). The dynamic sealing column (53) includes a sealing sheet and a sealing column two with the same structure as the sealing column one (51). The sealing sheet and the sealing column two are fixedly connected. The movable end of the electric push rod (52) is fixedly connected to the sealing sheet. The sealing column one (51) and the sealing column two are in contact with each other. The sealing column two is slidably connected to the inner wall of the sealing seat (31). One end of the sealing column one (51) and the sealing column two extends to the inner wall of the connecting ring (25). The end face of the sealing column two is fixedly connected to a forked rod (54). The sewage discharge section (6) includes a sewage discharge port (61), which is integrally connected to the outer wall of the sealing seat (31) and communicates with the sealing seat (31). One end of the sewage discharge port (61) is open. A slide rail (62) is fixedly connected to the outer wall of the open end of the sewage discharge port (61). A baffle plate (63) is attached between the slide rails (62) at the open end of the sewage discharge port (61). A groove (64) is provided on the baffle plate (63) to slide and cooperate with the slide rail (62). A slide arm (65) is fixedly connected to the outer wall of the groove (64). A support arm (66) is fixedly connected to one end of the slide arm (65). A touch plate (67) is fixedly connected to the support arm (66). The support arm (66) slides through the sealing cover (43) and is fixedly connected to the sealing sheet of the dynamic sealing column (53). The touch plate (67) abuts against the button switch (45).

2. A Y-type filter with a built-in drain valve according to claim 1, characterized in that: The sealing seat (31) is a cylindrical structure with openings at both ends. One end of the sealing seat (31) is fixedly connected to a sealing ring (32), and the extension end of the connecting ring (25) is rotatably fitted with a sealing ring (33). A connecting arm (34) is provided between the sealing ring (32) and the sealing ring (33).

3. A Y-type filter with a built-in drain valve according to claim 2, characterized in that: The connecting arm (34) is a U-shaped structure. The two ears of the connecting arm (34) are fixedly connected to the sealing ring one (32) and the sealing ring two (33) respectively. The teeth of the toothed ring (26) are located between the ears of the connecting arm (34). The sealing seat (31) is fixedly installed on the filter port of the Y-type filter body (1) through the sealing ring two (33).

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