Cooling water filtering and draining device of cooling system of integrated leveler and working method

Abstract

The invention relates to the technical field of marine electromagnetic induction heating leveler cooling systems, and discloses an integrated leveler cooling system cooling water filtering and draining device which comprises a main body frame, a cooling box, a heating power source and a heating coil, a filtering device is arranged on one side of the main body frame, and an electric control box is arranged on the other side of the main body frame; the filtering device is vertically arranged and sequentially provided with a base, a tray, a layered filter element and a cylinder cover from bottom to top, a magnetic filter frame is arranged in the layered filter element, a cylinder body sleeves the layered filter element, a cooling water inlet is formed in the middle of the cylinder cover, and a cooling water outlet is formed in the side wall of the cylinder body close to the bottom; the cylinder body comprises an inner cylinder with an opening in one end, the layered filter element is arranged in the inner cylinder through a buckle, and the opening end of the inner cylinder faces the cylinder cover. By adopting a layered structure and combining the design of a self-cleaning function of the surface of the filter element, the cooling water can be filtered in a graded manner, the filtering precision and smoothness are remarkably improved, the problem of blockage of the filter element is avoided, and long-term stable operation of a cooling system is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of cooling systems for marine electromagnetic induction heating levelers, and in particular to a cooling water filtering and drainage device and a working method for an integrated leveler cooling system. Background Art

[0002] During shipbuilding, most hull structures utilize thin steel plates to reduce weight and increase load-bearing capacity. However, these steel plates are susceptible to non-uniform local heat input during welding and assembly processes, which can easily generate thermal stress and deformation, thus affecting the accuracy of the hull structure. Leveling machines, as an important thermal straightening device, are widely used for precision correction of thin steel plates. They generate an alternating magnetic field through an alternating current in an induction coil, inducing eddy currents on the workpiece surface, causing localized heating and softening of the steel plate. Leveling is then completed under the action of mechanical pressure or restraint. However, in actual working environments, leveling machines must be frequently moved and operate under extremely harsh conditions, often accompanied by high temperatures, electromagnetic radiation, metal dust, and oil mist contamination. In particular, cooling systems operate in a state of high-frequency start-stop and high-flow circulation for long periods of time. Internal components of the system, such as water pipe interfaces, heating coils, and circulation loops, are susceptible to corrosion and deposit contamination from the cooling water. Especially after the operation is completed, if the residual cooling water in the pipeline and heating coil is not discharged in time, the long-term retention will not only cause scale crystallization and rust formation, but also accelerate the aging of the pipeline and corrosion of the coil, and then produce various types of metal particles and non-metallic impurities. These impurities accumulate in the system and can easily cause blockage of the cooling passage. In severe cases, it will lead to poor cooling of the heating coil, affecting the leveling efficiency and equipment stability.

[0003] Chinese invention patent: Announcement number "CN116889761B", titled "A cooling water filter offline cleaning device", discloses a cooling water filter offline cleaning device, including a cleaning tank body; a sealed tank cover is detachably mounted on the top of the cleaning tank body; a first water injection pipe is connected to the top of the sealed tank cover; a second water injection pipe is connected to the bottom of the cleaning tank body; a water outlet pipe is fixedly connected to the bottom of the sealed tank cover; the end of the first water injection pipe is arranged at a position corresponding to the inside of the water outlet pipe. This technical solution achieves the function of making the cooling water filter cleaner by placing the cooling water filter into the interior of the cleaning tank body and adding water to the interior of the cleaning tank body through the first water injection pipe and the second water injection pipe to flush the inner and outer walls of the cooling water filter. This effectively solves the problem that a large amount of impurities are accumulated inside and outside the cooling water filter due to improper cleaning of the filter, causing a large amount of impurities to enter the pipeline system and affect the water output of the nozzle. However, this technical solution still has the following shortcomings: First, this type of filter cannot achieve layered and classified filtration of impurities of different particle sizes, which makes the filter element easy to clog, affecting the filtration efficiency and system stability; Second, the cleaning cycle of the filter screen and filter element is short, and the overall structure is inconvenient to disassemble and assemble, and the maintenance operation is complicated, which significantly increases the operation and maintenance costs; Third, the device lacks an adaptive adjustment mechanism for dynamic changes in the flow rate, water pressure fluctuations and other dynamic changes in the leveling machine cooling system during operation, and it is difficult to meet the stable operation requirements under complex working conditions; Fourth, this type of structure is mostly a rigid fixed design, which lacks effective buffering and shock absorption function during equipment movement or vibration impact, and is easy to cause damage to the internal filter elements, thereby affecting the overall service life and reliability. Summary of the Invention

[0004] To address the problems of the prior art, which lacks tiered impurity filtration, leading to filter element clogging, and lacks an adaptive adjustment mechanism for dynamic changes in flow rate and water pressure, making it difficult to maintain stable operation under complex operating conditions, this invention proposes an integrated cooling water filtration and drainage device and operating method for a leveler cooling system. This device features a compact structure and highly integrated functions, including magnetic coarse filtration, tiered fine filtration, adaptive tensioning and sealing for vibration reduction, and automatic drainage.

[0005] The present invention is achieved through the following technical solutions: it includes a main frame, a cooling box is arranged inside the main frame, a heating power supply and a heating coil are arranged on the top of the main frame, the heating coil is electrically connected to the heating power supply, a filtering device is arranged on one side of the main frame, and an electrical control box is arranged on the side of the main frame away from the filtering device, the inlet and outlet of the filtering device are respectively connected to the cooling box through pipelines, the filtering device is electrically connected to the electrical control box, and the cooling box is connected to the heating coil through pipelines; the filtering device is vertically arranged and is provided with a base, a tray, a layered filter element and a cylinder cover in sequence from bottom to top, a magnetic filter frame is arranged inside the layered filter element and a cylinder body is provided on the outside, a cooling water inlet is arranged in the middle of the cylinder head, and a cooling water outlet is arranged on the side wall of the cylinder body near the bottom; the cylinder body includes an inner cylinder with an opening at one end, the layered filter element is built into the inner cylinder by a snap fastener arranged at the end of the inner cylinder away from the opening, and the open end of the inner cylinder faces the cylinder cover.

[0006] Furthermore, a single-axis motor is fixedly connected to the middle of the end of the inner cylinder away from the opening, and the output end of the single-axis motor is vertically arranged and extends into the interior of the inner cylinder; the magnetic filter frame includes a sleeve, a rectangular frame, a scraper, a filter core and a first mounting port; the rectangular frame is arranged in an array along the circumferential direction of the outer surface of the sleeve, and the long side of the rectangular frame is vertically arranged; a plurality of first mounting ports are provided on the short side of the rectangular frame, and the filter core is fixedly connected to the rectangular frame through the first mounting port and is vertically arranged; the sleeve is sleeved on the output end of the single-axis motor and fixedly connected to the output end of the single-axis motor.

[0007] Furthermore, the layered filter element as a whole is composed of two layers, an inner layer and an outer layer, and a hollow cylindrical structure is vertically arranged. The inner layer of the layered filter element is provided with a plurality of coarse filter holes, the outer layer of the layered filter element is provided with a plurality of fine filter holes, and a magnetic filter frame is provided in the hollow middle part of the layered filter element; the layered filter element is provided with a second mounting port that cooperates with the buckle on one side close to the buckle, and the layered filter element is fixedly connected to the buckle on the top surface of the base through the second mounting port.

[0008] Furthermore, a number of spring supports are arranged between the tray and the base, and the cylinder body also includes a horizontally arranged spring limiter, the spring limiter is arranged on the side wall of the cylinder body, and a horizontally arranged spring is arranged inside the spring limiter. The end of the spring away from the cylinder body is fixedly connected to the outer shell of the spring limiter, and the other end of the spring is connected to the slider. The slider is L-shaped as a whole, one side of the slider is vertical and the other side is horizontal, the vertical side of the slider is fixedly connected to the spring, and the horizontal side of the slider extends between the inner cylinder and the tray.

[0009] Furthermore, the filtering device also includes a drainage device, which includes a connecting slide rail, a one-way valve, a front drain pipe, a water pump and a rear drain pipe; the connecting slide rail is connected to the pipeline at the cooling water outlet; the water pump is arranged inside the base and connected to the connecting slide rail through the front drain pipe, and the water pump is also connected to the rear drain pipe.

[0010] Furthermore, a first lifting shaft and a first lifting slide rail are vertically arranged between the inner cylinder and the cylinder body; one end of the first lifting shaft is fixedly connected to the inner cylinder, and the other end of the first lifting shaft extends into the first lifting slide rail; a plurality of columnar protrusions are provided on the side of the tray away from the inner cylinder, and a plurality of second lifting slide rails are vertically arranged inside the base, and the second lifting slide rails cooperate with the protrusions on the tray and are the same in number.

[0011] Furthermore, a scraper may be provided on the side of the rectangular frame away from the sleeve.

[0012] Furthermore, universal wheels are provided at the bottom of the main frame.

[0013] Furthermore, the cylinder cover is fixedly connected to the second interface provided on the cylinder body through the first interface by screw threads. A second rubber pad is provided between the inner cylinder and the cylinder cover, and a first rubber pad is provided between the cylinder body and the cylinder cover.

[0014] The present invention also provides a working method for the cooling water filtration and drainage device of the integrated leveler cooling system of the present invention, comprising the following steps:

[0015] Step 1: Close the one-way valve and correctly connect the cooling water inlet and outlet of the filter device to the inlet and outlet pipes of the cooling box respectively;

[0016] Step 2: Start the single-axis motor. Cooling water flows from the cooling box into the filter device and first passes through the filter core. The cooling water then passes through the coarse filter holes and the fine filter holes in sequence. After the cooling water enters the inner cylinder, a certain water pressure is generated. The spring limiter pushes the slider to move, driving the inner cylinder to move up and down dynamically. The filtered cooling water returns to the cooling box through the cooling water outlet and then enters the heating coil for cooling.

[0017] Step 3: When the leveling operation is completed, open the one-way valve and start the water pump. The cooling water flows through the water pump along the front drain pipe and is discharged from the system through the rear drain pipe.

[0018] Step 4: After the filter device has been running continuously for a long time, remove the filter device from the leveler cooling system, thoroughly clean and inspect the layered filter element and cylinder body, and remove deposited impurities.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. The present invention adopts a layered structure of magnetic filter element, coarse filter holes and fine filter holes, combined with the design of self-cleaning function of the filter element surface, which can realize the graded filtration of metal chips, rust particles and non-metallic impurities in cooling water, significantly improve the filtration accuracy and patency, avoid the problem of filter element clogging, and ensure the long-term stable operation of the cooling system.

[0021] 2. The present invention introduces an adaptive tensioning mechanism, so that the filter element can dynamically adjust the degree of fit according to the water pressure. At the same time, it has a buffering and vibration reduction function, which can effectively resist the impact of the leveling machine during movement or vibration, reduce internal structural damage, extend the service life of the device, and adapt to the operating requirements under complex working conditions; through the adaptive tensioning and vibration reduction structure, it automatically adapts to changes in water pressure and improves stability under harsh working conditions.

[0022] 3. The device designed in this invention integrates filtering and drainage functions. After operation, it automatically drains residual cooling water from the pipes and heating coils to prevent corrosion and scaling. Furthermore, its modular structure facilitates installation, disassembly, and maintenance, significantly reducing labor and maintenance costs and improving overall equipment reliability and operational efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the overall structure of the cooling water filtration and drainage device of the integrated leveler cooling system of the present invention.

[0024] Figure 2 This is an assembly view of the cooling water filtration and drainage device of the integrated leveler cooling system of the present invention.

[0025] Figure 3 This is an exploded view of the cooling water filtration and drainage device of the integrated leveler cooling system of the present invention.

[0026] Figure 4 This is a half-sectional view of the filtering device of the cooling water filtration and drainage device of the integrated leveling machine cooling system of the present invention.

[0027] Figure 5 This is a half-section view of the supplementary cylinder of the cooling water filtration and drainage device of the integrated leveler cooling system of the present invention.

[0028] Figure 6 This is a half-section view of the layered filter element structure of the cooling water filtration and drainage device of the integrated leveler cooling system of the present invention.

[0029] Figure 7 This is a half-sectional view of the drainage device of the integrated leveler cooling system cooling water filtration and drainage device of the present invention.

[0030] Indicated in the figure:

[0031] 1. Heating coil; 2. Heating power supply; 3. Electric control box; 4. Filter device; 5. Cooling box; 41. Cylinder head; 42. Cylinder body; 43. Base; 44. Magnetic filter rack; 45. Layered filter element; 46. Tray; 47. Drain device; 411. Cooling water inlet; 412. First rubber pad; 413. Second rubber pad; 414. First interface; 421. Single-axis motor; 422. Buckle; 423. Spring limiter; 424. Second lifting rail; 4 25. Second interface; 426. Inner cylinder; 427. First lifting shaft; 428. First lifting slide rail; 429. Cooling water outlet; 431. Spring support; 441. First mounting port; 442. Scraper; 443. Filter core; 444. Sleeve; 451. Coarse filter hole; 452. Fine filter hole; 453. Second mounting port; 471. Connecting slide rail; 472. One-way valve; 473. Front drain pipe; 474. Water pump; 475. Rear drain pipe. DETAILED DESCRIPTION

[0032] The advantages and features of the present invention are illustrated and explained by the following non-limiting description of preferred embodiments thereof, which are given by way of example only with reference to the accompanying drawings.

[0033] like Figures 1 to 7 As shown, the present invention provides an integrated leveling machine cooling system cooling water filtration and drainage device, comprising a main frame, within which a cooling box 5 is disposed for storing cooling water. A heating power supply 2 and a heating coil 1 are disposed on the top of the main frame. The heating coil 1 is electrically connected to the heating power supply 2, which provides power to the heating coil 1. A filter device 4 is disposed on one side of the main frame, and an electrical control box 3 is disposed on the side of the main frame away from the filter device 4. The inlet and outlet of the filter device 4 are respectively connected to the cooling box 5 via water pipes. The filter device 4 is electrically connected to the electrical control box 3 and controlled by the electrical control box 3. The outlet of the filter device 4 is connected to the cooling box 5 via a pipeline, and the inlet of the filter device 4 is connected to the cooling box 5. The cooling box 5 is also connected to the heating coil 1 via a pipeline. Universal wheels can be provided at the bottom of the main frame to facilitate the movement of the entire filtration and drainage device, allowing it to adapt to various working conditions.

[0034] Before electromagnetic induction heating and leveling the thin steel plates, the cooling water in the cooling tank 5 is first filtered through the filter device 4 for layered fine filtration. The filter device 4, designed in the present invention, features a multi-layered filter structure consisting of a magnetic filter element, coarse filter holes, and fine filter holes. Furthermore, because the operating environment is often characterized by high temperatures, electromagnetic radiation, metal dust, and oil contamination, the cooling water is susceptible to large amounts of corrosive impurities and solid particles, which can easily cause traditional filter elements to loosen, deform, or clog. Therefore, an adaptive tensioning assembly has been designed and integrated to automatically adjust the fit between the filter element and the housing based on changes in water pressure, maintaining the tightness and filtration efficiency of the filter unit. This effectively removes metal shavings, rust particles, and non-metallic impurities generated in the system, ensuring stable cooling water flow. After filtration, the cooling water flows to the heating coil 1 for cooling to prevent overheating and failure during the high-frequency induction heating process. Thereafter, the cooling water returns to the main cooling tank 5 through the water path, forming a stable closed-loop circulation system. Subsequently, the heating power supply 2 is activated to generate a high-frequency current, rapidly heating the heating coil 1 and commencing the thermal leveling process on the thin steel plates.

[0035] like Figures 2 to 7Figure 4 shows a schematic diagram of an integrated cooling water filtration and drainage device according to the present invention. The filter device 4 comprises a cylinder head 41, a cylinder body 42, a base 43, a magnetic filter frame 44, a layered filter element 45, a tray 46, and a drainage device 47. From bottom to top, the filter device 4 comprises the base 43, drainage device 47, tray 46, layered filter element 45, and cylinder head 41. The magnetic filter frame 44 is positioned within the layered filter element 45, and the cylinder body 42 is positioned over the layered filter element 45. The cylinder head 41, cylinder body 42, and base 43 form a container that houses the other components of the filter device 4. The container formed by the cylinder head 41, cylinder body 42, and base 43 is preferably cylindrical, with the axial direction of the container vertically arranged. The cylinder body 42 includes an inner cylinder 426, within which the layered filter element 45 is located. The inner cylinder 426 is a cylindrical container with one end open, with the open end facing the cylinder head 41. A single-axis motor 421 is fixedly connected to the middle portion of the inner cylinder 426, distal from the opening. The output end of the single-axis motor 421 is vertically positioned and extends into the interior of the inner cylinder 426. The magnetic filter frame 44 comprises a sleeve 444, a rectangular frame, a scraper 442, a filter core 443, and a first mounting opening 441. The rectangular frame is arranged in an array along the circumference of the outer surface of the sleeve 444, with its long sides arranged vertically. A scraper 442 may be provided on the side of the rectangular frame distal from the sleeve 444 to remove residue from the layered filter core 45. The rectangular frame is preferably three in number. Several first mounting openings 441 are provided on the short sides of the rectangular frame, through which the filter core 443 is fixedly connected to the rectangular frame. The filter core 443 is vertically positioned to provide preliminary magnetic absorption of larger metal impurities in the cooling water. The sleeve 444 fits over the output end of the single-axis motor 421 and is fixedly connected to the output end of the single-axis motor 421. A cooling water inlet 411 is provided in the middle of the cylinder head 41 , and a cooling water outlet 429 is provided on the side wall of the cylinder body 42 near the bottom.

[0036] The inner cylinder 426 is further provided with a buckle 422 at the end away from the opening, and the layered filter element 45 is fixedly connected to the inner cylinder 426 via the buckle 422. The cylinder head 41 is fixedly connected to the second interface 425 provided on the cylinder body 42 via a first interface 414 by means of threads, ensuring a reliable overall seal and a firm connection. A second rubber pad 413 is provided between the inner cylinder 426 and the cylinder head 41, and a first rubber pad 412 is provided between the cylinder body 42 and the cylinder head 41. The second rubber pad 413 cooperates with the layered filter element 45 and the inner cylinder 426 to prevent turbulent flow of cooling water. The first rubber pad 412 is used to prevent cooling water from leaking out of the filter device 4. The shapes of the first rubber pad 412 and the second rubber pad 413 can be determined according to the size of the filter device 4 and the actual situation, and will not interfere with the normal flow path of the cooling water. This is a prior art and will not be described in detail in the present invention.

[0037] A plurality of spring supports 431 are provided between the tray 46 and the base 43. The spring supports 431 are used to support the tray 46 and, during operation, to apply force to the inner cylinder 426 so that the inner cylinder 426 and the second rubber pad 413 are tightly fitted. The cylinder body 42 also includes a spring retainer 423, which is provided on the side wall of the cylinder body 42. The spring retainer 423 is arranged horizontally and contains a horizontally arranged spring. The end of the spring away from the cylinder body 42 is fixedly connected to the outer shell of the spring retainer 423, and the other end of the spring is connected to a slider. The slider is generally L-shaped, with one side of the slider being vertical and the other side being horizontal. The vertical side of the slider is fixedly connected to the spring, and the horizontal side of the slider extends between the inner cylinder 426 and the tray 46. When the slider is not in operation, i.e., when there is no cooling water in the filter device 4, it separates the inner cylinder 426 from the tray 46. When the slider is in operation, i.e., when there is cooling water in the filter device 4, the cooling water pushes the slider away from the cylinder body 42, thereby being drawn out from between the inner cylinder 426 and the tray 46. When the inner cylinder 426 moves downward and contacts the tray 46, the spring support 431 is compressed, and simultaneously generates an upward reaction force, which securely adheres the layered filter element 45 to the inner wall where the second leaky rubber pad 413 is located. After filtration is completed, the cooling water flows out from the cooling water outlet 429.

[0038] In order to prevent the inner cylinder 426 and the tray 46 from shifting during movement, a first lifting shaft 427 and a first lifting rail 428 can be provided between the inner cylinder 426 and the cylinder body 42. The first lifting shaft 427 and the first lifting rail 428 are both vertically arranged. One end of the first lifting shaft 427 is fixedly connected to the inner cylinder 426, and the other end of the first lifting shaft 427 extends into the first lifting rail 428 and cooperates with the first lifting rail 428 to limit the movement of the inner cylinder 426. The tray 46 is provided with a plurality of columnar protrusions on the side away from the inner cylinder 426. The base 43 is vertically provided with a plurality of second lifting rails 424. The number of the second lifting rails 424 is the same as that of the protrusions on the tray 46. The second lifting rails 424 cooperate with the protrusions on the tray 46 to limit the movement of the tray 46.

[0039] like Figure 6The figure shows a schematic diagram of the structure of the layered filter element 45 of the present invention. The layered filter element 45 is a hollow cylindrical structure as a whole and is arranged vertically. A magnetic filter frame 44 is provided in the hollow part of the middle of the layered filter element 45. The layered filter element 45 consists of two layers, inner and outer. The inner layer of the layered filter element 45 is provided with a number of coarse filter holes 451, and the outer layer of the layered filter element 45 is provided with a number of fine filter holes 452. The layered filter element 45 is provided with a second mounting port 453 that cooperates with the buckle 422 on the side close to the buckle 422. The layered filter element 45 is fixedly connected to the buckle 422 on the top surface of the base 43 through the second mounting port 453, and the overall structure is stable and reliable. The scraper 442 on the magnetic filter frame 44 contacts the inner layer of the layered filter element 45, and the scraper 442 is preferably a curved surface structure that fits the inner layer of the layered filter element 45. The scraper 442 is used to clear large particles of solid impurities attached to the inner layer of the layered filter element 45.

[0040] When cooling water flows from cooling water inlet 411 into inner cylinder 426 of cylinder body 42 of filter device 4, it first passes through filter core 443 to remove metal particles. It then passes sequentially through coarse filter holes 451 and fine filter holes 452 in layered filter element 45, achieving a step-by-step filtration of non-metallic particles, significantly improving filtration efficiency and impurity removal. If larger impurities clog coarse filter holes 451, scraper 442, driven by single-axis motor 421, rotates and cleans them, scraping away obstructions adhering to the filter holes, maintaining a clear filter element and ensuring continuous and stable cooling water flow.

[0041] like Figure 7 As shown, the drainage device 47 includes a connecting rail 471, a one-way valve 472, a front drain pipe 473, a water pump 474, and a rear drain pipe 475. The connecting rail 471 is connected to the pipeline at the cooling water outlet 429. The water pump 474 is disposed within the base 43 and connected to the connecting rail 471 via the front drain pipe 473. The water pump 474 is also connected to a rear drain pipe 475, which is used to drain the cooling water pumped out of the water pump 474. The front drain pipe 473 is provided with a one-way valve 472, which can be opened and closed to control the flow of residual cooling water from the filter device 4 into the water pump 474.

[0042] The drainage piping of drainage device 47 is connected as follows: first, connect the front end of connecting rail 471 to cooling water outlet 429 of filter device 4, and the rear end to front drain pipe 473; then, connect the other end of front drain pipe 473 to the inlet of pump 474, and finally, connect the outlet of pump 474 to rear drain pipe 475, forming a complete drainage path. After the leveling operation is completed, open check valve 472, start pump 474, and pump cooling water from front drain pipe 473 to rear drain pipe 475 and out of the system. This effectively removes residual cooling water from heating coil 1 and the piping, preventing long-term water retention during shutdown, which could cause corrosion in the piping or damage to heating coil 1, thereby extending the service life of the equipment.

[0043] The present invention also provides a working method for the cooling water filtration and drainage device of the integrated leveler cooling system of the present invention, comprising the following steps:

[0044] Before connecting the filtration and drainage system to the leveler cooling system, first inspect the overall sealing of the filter unit 4. Specifically, check that the first and second rubber gaskets 412, 413 are intact and free of signs of aging, wear, or damage. Also, confirm that the layered filter element 45 is securely attached to the clips 422 to prevent cooling water leakage caused by loose connections, thereby ensuring reliable system sealing and safe operation.

[0045] Step 1: Close the one-way valve 472 and properly connect the cooling water inlet 411 and cooling water outlet 429 of the filter device 4 to the inlet and outlet pipes of the cooling box 5, ensuring that the cooling water flows clearly and is connected in the correct direction. After connection, check each interface for cooling water leaks to ensure that the system connection is tight and reliable.

[0046] Step 2: Start the single-axis motor 421, and the cooling water flows from the cooling box 5 into the filter device 4. First, the metal impurities in the cooling water are subjected to primary magnetic filtration through the filter core 443 in the magnetic filter frame 44. The cooling water then passes through the coarse filter holes 451 and the fine filter holes 452 on the layered filter element 45 in turn, completing the layered filtration of non-metallic impurities of different particle sizes, and realizing three-stage filtration and purification. During the filtration process, the scraper 442 at the end of the rectangular frame of the magnetic filter frame 44 rotates continuously under the drive of the single-axis motor 421, effectively removing larger impurities blocked on the surface of the coarse filter holes 451, preventing the filter element from being blocked, and ensuring that the cooling water continues to flow smoothly. During this process, a certain water pressure is formed after the cooling water enters the inner cylinder 426. This pressure acts on the spring limiter 423 to push the slider to move, and the dynamic lifting of the inner cylinder 426 is realized with the help of the first lifting shaft 427 and the first lifting rail 428. When inner cylinder 426 descends to tray 46, spring support 431 is compressed, generating an upward reaction force that forces layered filter element 45 to adhere tightly to the inner wall of second rubber pad 413, effectively improving sealing and filtration efficiency. The filtered cooling water flows back to cooling tank 5 through cooling water outlet 429, then enters heating coil 1 for cooling. This prevents damage to heating coil 1 due to excessive temperature rise during electromagnetic induction heating, forming a highly efficient closed-loop cooling circuit.

[0047] Step 3: After the leveling operation is completed, open the check valve 472 in the drainage device 47 and start the water pump 474. The cooling water flows along the front drainage pipe 473, passes through the water pump 474, and is discharged from the system through the rear drainage pipe 475. This process effectively drains the residual liquid in the heating coil 1 and cooling pipeline, preventing corrosion of the pipeline or damage to the heating coil 1 caused by the long-term retention of cooling water during shutdown, thereby extending the operating life of the entire system.

[0048] Step 4: After the device has been running continuously for a long time, remove the filter device 4 from the leveler cooling system, thoroughly clean and inspect the layered filter element 45 and the bottom structure of the cylinder 42, remove deposited impurities, restore the filtering efficiency, and ensure long-term stable operation of the system.

[0049] In addition to the above embodiments, the present invention may also have other implementation methods. Any technical solutions formed by equivalent replacement or equivalent transformation fall within the protection scope required by the present invention.

Claims

1. A cooling water filtration and drainage device for an integrated leveling machine cooling system, comprising a main frame, a cooling box (5) disposed inside the main frame, a heating power supply (2) and a heating coil (1) disposed on the top of the main frame, the heating coil (1) being electrically connected to the heating power supply (2), and characterized in that: A filter device (4) is provided on one side of the main frame, and an electric control box (3) is provided on the side of the main frame away from the filter device (4). The inlet and outlet of the filter device (4) are respectively connected to the cooling box (5) through pipelines. The filter device (4) is electrically connected to the electric control box (3), and the cooling box (5) is connected to the heating coil (1) through pipelines. The filter device (4) is vertically arranged and is provided with a base (43), a tray (46), a layered filter element (45) and a cylinder cover (41) in sequence from bottom to top. The layered filter A magnetic filter frame (44) is provided inside the core (45), and a cylinder body (42) is provided on the outside. A cooling water inlet (411) is provided in the middle of the cylinder cover (41), and a cooling water outlet (429) is provided on the side wall of the cylinder body (42) near the bottom. The cylinder body (42) includes an inner cylinder (426) with an opening at one end. The layered filter element (45) is built into the inner cylinder (426) through a buckle (422) provided at an end of the inner cylinder (426) away from the opening, and the opening end of the inner cylinder (426) faces the cylinder cover (41).

2. The cooling water filtration and drainage device of the integrated leveling machine cooling system according to claim 1 is characterized by: A single-axis motor (421) is fixedly connected to the middle of one end of the inner cylinder (426) away from the opening, and the output end of the single-axis motor (421) is vertically arranged and extends into the interior of the inner cylinder (426); the magnetic filter frame (44) comprises a sleeve (444), a rectangular frame, a scraper (442), a filter core (443) and a first mounting port (441); the rectangular frame is arranged in an array along the circumferential direction of the outer surface of the sleeve (444), and the long side of the rectangular frame is vertically arranged; a plurality of first mounting ports (441) are provided on the short side of the rectangular frame, and the filter core (443) is fixedly connected to the rectangular frame through the first mounting ports (441) and is vertically arranged; the sleeve (444) is sleeved on the output end of the single-axis motor (421) and fixedly connected to the output end of the single-axis motor (421).

3. The cooling water filtration and drainage device of the integrated leveler cooling system according to claim 2 is characterized by: The layered filter element (45) as a whole is composed of an inner and outer layer and a vertically arranged hollow cylindrical structure. The inner layer of the layered filter element (45) is provided with a plurality of coarse filter holes (451), and the outer layer of the layered filter element (45) is provided with a plurality of fine filter holes (452). A magnetic filter frame (44) is provided in the hollow portion of the middle of the layered filter element (45); a second mounting port (453) cooperating with the buckle (422) is provided on one side of the layered filter element (45) close to the buckle (422), and the layered filter element (45) is fixedly connected to the buckle (422) on the top surface of the base (43) through the second mounting port (453).

4. The cooling water filtration and drainage device of the integrated leveler cooling system according to claim 3 is characterized by: A plurality of spring supports (431) are provided between the tray (46) and the base (43). The cylinder body (42) further comprises a horizontally arranged spring stopper (423). The spring stopper (423) is provided on the side wall of the cylinder body (42). A horizontally arranged spring is provided inside the spring stopper (423). One end of the spring away from the cylinder body (42) is fixedly connected to the outer shell of the spring stopper (423), and the other end of the spring is connected to the slider. The slider is L-shaped as a whole, with one side of the slider being vertical and the other side being horizontal. The vertical side of the slider is fixedly connected to the spring, and the horizontal side of the slider extends between the inner cylinder (426) and the tray (46).

5. The cooling water filtration and drainage device of the integrated leveler cooling system according to claim 4 is characterized by: The filtering device (4) further comprises a drainage device (47), wherein the drainage device (47) comprises a connecting slide rail (471), a one-way valve (472), a front drainage pipe (473), a water pump (474), and a rear drainage pipe (475); the connecting slide rail (471) is connected to the pipeline at the cooling water outlet (429); the water pump (474) is arranged inside the base (43) and connected to the connecting slide rail (471) via the front drainage pipe (473); and the water pump (474) is also connected to the rear drainage pipe (475).

6. The cooling water filtration and drainage device of the integrated leveler cooling system according to claim 5, characterized in that: A first lifting shaft (427) and a first lifting rail (428) are vertically arranged between the inner cylinder (426) and the cylinder body (42); one end of the first lifting shaft (427) is fixedly connected to the inner cylinder (426), and the other end of the first lifting shaft (427) extends into the first lifting rail (428); a plurality of columnar protrusions are arranged on the side of the tray (46) away from the inner cylinder (426), and a plurality of second lifting rails (424) are vertically arranged inside the base (43), and the second lifting rails (424) cooperate with the protrusions on the tray (46) and are the same in number.

7. The cooling water filtration and drainage device of the integrated leveler cooling system according to claim 5, characterized in that: A scraper (442) may be provided on a side of the rectangular frame away from the sleeve (444).

8. The cooling water filtration and drainage device of the integrated leveler cooling system according to claim 5, characterized in that: Universal wheels are provided at the bottom of the main frame.

9. The cooling water filtration and drainage device of the integrated leveler cooling system according to claim 5, characterized in that: The cylinder cover (41) is fixedly connected to a second interface (425) provided on the cylinder body (42) through a first interface (414) by means of a thread. A second rubber pad (413) is provided between the inner cylinder (426) and the cylinder cover (41), and a first rubber pad (412) is provided between the cylinder body (42) and the cylinder cover (41).

10. A method for operating the cooling water filtration and drainage device of the integrated leveler cooling system according to any one of claims 5 to 9, characterized in that: The following steps are involved: Step 1: Close the one-way valve (472) and correctly connect the cooling water inlet (411) and cooling water outlet (429) of the filter device (4) to the inlet and outlet pipes of the cooling box (5) respectively; Step 2: Start the single-axis motor (421), and the cooling water flows from the cooling box (5) into the filter device (4), first passing through the filter core (443); then the cooling water passes through the coarse filter hole (451) and the fine filter hole (452) in sequence, and forms a certain water pressure after the cooling water enters the inner cylinder (426). The spring limiter (423) pushes the slider to move, driving the inner cylinder (426) to perform dynamic lifting; the filtered cooling water flows back to the cooling box (5) through the cooling water outlet (429), and then enters the heating coil (1) for cooling treatment; Step 3: After the leveling operation is completed, the one-way valve (472) is opened, and the water pump (474) is started. The cooling water flows through the water pump (474) along the front drain pipe (473) and is discharged from the system through the rear drain pipe (475); Step 4: After the filter device (4) has been running continuously for a long time, the filter device (4) is removed from the cooling system of the leveler, and the layered filter element (45) and the cylinder body (42) are thoroughly cleaned and inspected to remove deposited impurities.

Images