A stainless steel hot-rolled plate strip cooling device

Abstract

The utility model discloses a stainless steel hot rolling plate strip cooling device relates to stainless steel hot rolling plate strip cooling technical field, including bottom plate, high pressure cleaning component, cooling component and steam recovery component, the bottom plate upper end is equipped with high pressure cleaning component, cooling component and steam recovery component, high pressure cleaning component contains installation groove, filter plate, guide wheel no.

Description

Technical Field

[0001] This utility model relates to the field of stainless steel hot-rolled strip cooling technology, specifically a stainless steel hot-rolled strip cooling device. Background Technology

[0002] With the rapid development of the steel rolling industry, the competition in the plate and strip market is becoming increasingly fierce. Achieving mass production of high-end products has become the primary goal of the industry. At the same time, due to the rapid development of industries such as aviation, automobiles, and home appliances in recent years, users have increasingly higher requirements for high surface quality and high value-added plate and strip products, and the demand is increasing day by day. Furthermore, with the continuous development of the trend of replacing cold-rolled steel plates with hot-rolled steel plates in the rolling field, the requirements and indicators for the surface quality of hot-rolled plates and strips are also constantly improving. Among the existing technologies, the authorized announcement number CN212093752U proposes a cooling device for hot-rolled strip steel for molds. The device includes a cooling chamber, a support frame, a cooler, a feed plate, and a discharge plate. A set of U-shaped return pipes are connected downwards to the left and right sides of the cooling chamber. A set of discharge plates parallel to the feed plate are installed on the upper side of the feed plate via a support rod. A set of push plates is provided inside the right side of the cooling chamber. A pressure rod is fixedly connected to the right side of the push plates via a connecting rod and is located inside the buffer chamber. A lifting chamber is opened inside the left side of the cooling chamber. A set of second hydraulic cylinders is fixedly installed at the bottom of the lifting chamber. A hydraulic rod is provided at the upper output end of the second hydraulic cylinders. A top block with a right-angled triangular structure is fixedly installed on the top of the hydraulic rod. In existing technologies, during the cooling process, cooling water comes into contact with high-temperature stainless steel, causing the cooling water to boil and evaporate, generating a large amount of hot steam. This hot steam cannot be collected for recycling. During hot rolling, the surface of the stainless steel hot-rolled strip undergoes cooling oxidation, which often damages the surface quality of the stainless steel hot-rolled strip, causing surface defects and affecting product quality. Therefore, we propose a stainless steel hot-rolled strip cooling device. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the existing defects and provide a stainless steel hot-rolled strip cooling device that can collect and recycle the large amount of water vapor generated during cooling, remove the oxide layer on the surface during cooling, and detect whether there are hidden defects inside the stainless steel. This can effectively solve the problems in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a stainless steel hot-rolled strip cooling device, comprising a base plate, a high-pressure cleaning assembly, a cooling assembly, and a steam recovery assembly; Base plate: The upper part is equipped with high-pressure cleaning components, cooling components and steam recovery components; High-pressure cleaning assembly: includes a mounting slot, filter plate, guide wheel 1, high-pressure pipe, nozzle, pulley, belt, gear, motor, water tank, and connecting pipe 1. The mounting slot is fixedly connected to the front end of the base plate. Six guide wheels 1 are rotatably connected to the inner side of the mounting slot, corresponding vertically. A filter plate is slidably connected to the lower front end of the mounting slot. High-pressure pipes are rotatably connected between the guide wheels 1 on the same side. The inner left end of the high-pressure pipe is rotatably connected to the connecting pipe 1 via a sealed bearing. A water tank is fixedly connected to the upper left side of the base plate. A water pump is installed inside the water tank. The outlet of the water tank is connected to the connecting pipe 1. A pulley is fixedly connected to the right end of the high-pressure pipe. Pulleys on the same side are connected via a belt. A gear is fixedly connected to the left outer side of the rear high-pressure pipe, with two gears meshing. A motor is installed at the right end of the mounting slot. The output shaft of the motor is fixedly connected to the rotation center of a pulley. Multiple nozzles are installed at the outlet of the high-pressure pipe.

[0005] The device integrates a high-pressure cleaning component, a cooling component, and a steam recovery component on a base plate. The high-pressure cleaning component is fixed to the front end of the base plate through a mounting groove. Its six guide wheels form a strip conveying channel through which the stainless steel hot-rolled strip passes. The motor drives the high-pressure pipe to rotate for significant adjustment via belt and gear linkage. The water pump in the water tank supplies water to the high-pressure pipe through a connecting pipe. The nozzles spray water at multiple angles, cooling the stainless steel hot-rolled strip while simultaneously performing high-pressure cleaning of the oxide scale on the surface of the stainless steel hot-rolled strip. The filter plate is removable for collecting and filtering impurities.

[0006] Furthermore, the cooling assembly includes a cooling pool, support wheels, guide wheels, and an electromagnetic ultrasonic metal flaw detector. The cooling pool is located at the rear end of the base plate. Multiple support wheels are rotatably connected to the lower inner side of the cooling pool. Two guide wheels are respectively located at the front and rear ends of the cooling pool. An electromagnetic ultrasonic metal flaw detector is located at the middle of the upper inner side of the cooling pool.

[0007] The cooling pool of the cooling assembly is located at the rear end of the base plate. The support wheel supports the strip, the guide wheel adjusts the running trajectory, and the electromagnetic ultrasonic metal flaw detector detects internal defects of the strip in real time. At the same time, the cooling pool cools down the stainless steel hot-rolled strip.

[0008] Furthermore, the cooling assembly also includes a temperature and water level detector, an inlet and an outlet. The outlet and inlet are respectively provided on the front and rear sides of the right end of the cooling pool. A temperature and water level detector is provided in the middle of the right side of the cooling pool, and the probe of the temperature and water level detector is inside the cooling pool.

[0009] The cooling pool forms a circulating water path through the inlet and outlet, and temperature and water level detectors monitor the coolant status.

[0010] Furthermore, the steam recovery assembly includes a water vapor collection hood, a second connecting pipe, a negative pressure fan, an installation pipe, an electric telescopic rod, and a push plate. The water vapor collection hood is provided on the upper side of the high-pressure cleaning assembly and the cooling assembly at the upper end of the base plate. The upper rear side of the water vapor collection hood is connected to one end of the second connecting pipe, and the other end of the second connecting pipe is connected to the air inlet of the negative pressure fan. The air outlet of the negative pressure fan is connected to the installation pipe. An electric telescopic rod is provided at the upper end of the installation pipe, and a push plate is provided at the lower end of the electric telescopic rod. The push plate is slidably connected to the inner side of the installation pipe, and multiple through holes are provided on the push plate.

[0011] The cooling pool cools the stainless steel hot-rolled strip, generating a large amount of water vapor. The water vapor collection hood covers the work area, and the negative pressure fan draws the steam to the installation pipe through the connecting pipe. The water vapor is absorbed by the sponge, and the electric telescopic rod pushes the perforated push plate to compress the sponge, quickly squeezing out the water inside the sponge.

[0012] Furthermore, the steam recovery assembly also includes a sponge mounting cylinder, a high-temperature resistant sponge, a sliding plate, a threaded connecting pipe, a water collection tank, and an air outlet. A water collection tank is provided at the upper left rear part of the base plate, a threaded connecting pipe is provided at the upper end of the water collection tank, and an air outlet is provided at the upper end of the water collection tank. A high-temperature resistant sponge is fixed to the lower inner side of the sponge mounting cylinder, a sliding plate is provided at the upper end of the high-temperature resistant sponge, and a sliding plate is slidably connected to the upper inner side of the sponge mounting cylinder. The upper and lower inner ends of the sponge mounting cylinder are threadedly connected to the mounting pipe and the threaded connecting pipe, respectively.

[0013] The sponge installation cylinder is connected in series with the installation pipe and the water collection tank. The high-temperature resistant sponge absorbs water vapor. The electric telescopic rod pushes the perforated push plate to push the sliding plate to compress the sponge, quickly squeezing out the water inside the sponge. The threaded connection pipe enables quick assembly and disassembly of the sponge.

[0014] Furthermore, the steam recovery assembly also includes a filter box, which is located at the middle of the upper right side of the base plate. The inlet of the filter box is connected to the water collection tank and the mounting groove, respectively, and the outlet of the filter box is connected to the water storage tank.

[0015] The filter box connects the water collection tank and the water storage tank, and the recycled water is filtered a second time before being reinjected into the cleaning system.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows: This stainless steel hot-rolled strip cooling device has the following advantages: 1. This stainless steel hot-rolled strip cooling device features a high-pressure cleaning component fixed to the front end of the base plate via a mounting groove. Its six guide wheels form a strip conveying channel through which the stainless steel hot-rolled strip passes. The motor drives the high-pressure pipe to rotate via a belt and gear linkage for significant adjustments. A water pump from the water tank supplies water to the high-pressure pipe via a connecting pipe. The nozzles spray water at multiple angles, simultaneously cooling the stainless steel hot-rolled strip and high-pressure cleaning the oxide scale on its surface. The filter plate is removable for collecting and filtering impurities, removing the surface oxide layer during cooling. At the same time, an electromagnetic ultrasonic metal flaw detector detects internal defects in the strip in real time, detecting any hidden damage inside the stainless steel during cooling.

[0017] 2. This stainless steel hot-rolled strip cooling device uses a cooling pool to cool the stainless steel hot-rolled strip, which generates a large amount of water vapor. A water vapor collection hood covers the work area, and a negative pressure fan draws steam through a connecting pipe to the installation pipe. The water vapor is absorbed by a sponge, and an electric telescopic rod pushes a perforated push plate to compress the sponge, quickly squeezing out the water inside the sponge. The filter box connects the water collection tank and the water storage tank, and the recycled water is filtered a second time and then reinjected into the cleaning system. This device can collect and recycle the large amount of water vapor generated during cooling. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the left side structure of this utility model; Figure 3 This is a partial structural diagram of the high-pressure cleaning component of this utility model; Figure 4 This is a cross-sectional view of the cooling component of this utility model; Figure 5 This is a partial cross-sectional view of the steam recovery assembly of this utility model.

[0019] In the diagram: 1. Base plate; 3. High-pressure cleaning assembly; 31. Mounting slot; 32. Filter plate; 33. Guide wheel one; 34. High-pressure pipe; 35. Nozzle; 36. Pulley; 37. Belt; 38. Gear; 39. Motor; 310. Water storage tank; 311. Connecting pipe one; 4. Cooling assembly; 41. Cooling pool; 42. Support wheel; 43. Guide wheel two; 44. Electromagnetic ultrasonic metal flaw detector; 45. Temperature and water level detector; 46. Water inlet; 47. Water outlet; 5. Steam recovery assembly; 51. Water vapor collection hood; 52. Connecting pipe two; 53. Negative pressure fan; 54. Mounting pipe; 55. Electric telescopic rod; 56. Sponge mounting cylinder; 57. Push plate; 58. High-temperature resistant sponge; 59. Sliding plate; 510. Threaded connecting pipe; 511. Water collection tank; 512. Air outlet; 513. Filter box. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-5 This embodiment provides a technical solution: a stainless steel hot-rolled strip cooling device, including a base plate 1, a high-pressure cleaning component 3, a cooling component 4 and a steam recovery component 5; Base plate 1: The upper end is equipped with a high-pressure cleaning component 3, a cooling component 4, and a steam recovery component 5; High-pressure cleaning component 3 includes a mounting groove 31, a filter plate 32, guide wheels 33, a high-pressure pipe 34, a nozzle 35, pulleys 36, a belt 37, a gear 38, a motor 39, a water tank 310, and a connecting pipe 311. The mounting groove 31 is fixedly connected to the front end of the base plate 1. Six guide wheels 33 are rotatably connected to the inner side of the mounting groove 31. The filter plate 32 is slidably connected to the lower front end of the mounting groove 31. High-pressure pipes 34 are rotatably connected between the guide wheels 33 on the same side. The inner left end of the high-pressure pipe 34 is connected to the connecting pipe 311 via a sealed bearing. The upper left side of the base plate 1 is fixedly connected to a water storage tank 310. A water pump is installed inside the water storage tank 310. The outlet of the water storage tank 310 is connected to the connecting pipe 311. The right end of the high pressure pipe 34 is fixedly connected to a pulley 36. The pulley 36 on the same side is connected by a belt 37. The left side of the rear high pressure pipe 34 is fixedly connected to a gear 38. The two gears 38 mesh. The right end of the mounting groove 31 is equipped with a motor 39. The output shaft of the motor 39 is fixedly connected to the rotation center of a pulley 36. The outlet of the high pressure pipe 34 is equipped with multiple nozzles 35.

[0022] The device integrates a high-pressure cleaning component 3, a cooling component 4, and a steam recovery component 5 on a base plate 1. The high-pressure cleaning component 3 is fixed to the front end of the base plate through a mounting groove 31. Its six guide wheels 33 form a strip conveying channel through which the stainless steel hot-rolled strip passes. The motor 39 drives the high-pressure pipe 34 to rotate for large adjustments via a belt 37 and a gear 38. The water pump in the water tank 310 supplies water to the high-pressure pipe 34 through a connecting pipe 311. The nozzle 35 sprays water at multiple angles to cool the stainless steel hot-rolled strip while simultaneously cleaning the oxide scale on its surface. The filter plate 32 is detachable for collecting and filtering impurities.

[0023] The cooling assembly 4 includes a cooling pool 41, support wheels 42, guide wheels 43, and an electromagnetic ultrasonic metal flaw detector 44. The cooling pool 41 is located at the rear end of the base plate 1. Multiple support wheels 42 are rotatably connected to the lower inner side of the cooling pool 41. Two guide wheels 43 are respectively located at the front and rear ends of the cooling pool 41. The electromagnetic ultrasonic metal flaw detector 44 is located at the middle of the upper inner side of the cooling pool 41.

[0024] The cooling pool 41 of the cooling assembly 4 is located at the rear end of the base plate, the support wheel 42 supports the strip, the guide wheel 43 adjusts the running trajectory, the electromagnetic ultrasonic metal flaw detector 44 detects internal defects of the strip in real time, and at the same time cools down the stainless steel hot-rolled strip through the cooling pool 41.

[0025] The cooling assembly 4 also includes a temperature and water level detector 45, an inlet 46 and an outlet 47. The outlet 47 and the inlet 46 are respectively provided on the front and rear sides of the right end of the cooling pool 41. The temperature and water level detector 45 is provided in the middle of the right side of the cooling pool 41, and the probe of the temperature and water level detector 45 is inside the cooling pool 41.

[0026] The cooling pool 41 forms a circulating water path through the inlet 46 and the outlet 47, and the temperature and water level detectors 45 monitor the coolant status.

[0027] The steam recovery assembly 5 includes a water vapor collection hood 51, a connecting pipe 52, a negative pressure fan 53, an installation pipe 54, an electric telescopic rod 55, and a push plate 57. The water vapor collection hood 51 is installed on the upper side of the high-pressure cleaning assembly 3 and the cooling assembly 4 at the upper end of the base plate 1. The upper rear side of the water vapor collection hood 51 is connected to one end of the connecting pipe 52, and the other end of the connecting pipe 52 is connected to the air inlet of the negative pressure fan 53. The air outlet of the negative pressure fan 53 is connected to the installation pipe 54. An electric telescopic rod 55 is installed at the upper end of the installation pipe 54, and a push plate 57 is installed at the lower end of the electric telescopic rod 55. The push plate 57 is slidably connected to the inner side of the installation pipe 54, and multiple through holes are provided on the push plate 57.

[0028] Cooling pool 41 cools and de-cools stainless steel hot-rolled strip, generating a large amount of water vapor. Water vapor collection hood 51 covers the work area. Negative pressure fan 53 draws steam to installation pipe 54 through connecting pipe 2 52. Water vapor is absorbed by sponge. Electric telescopic rod 55 pushes perforated push plate 57 to compress sponge, quickly squeezing out the water inside the sponge.

[0029] The steam recovery assembly 5 also includes a sponge mounting cylinder 56, a high-temperature resistant sponge 58, a sliding plate 59, a threaded connecting pipe 510, a water collection tank 511, and an air outlet 512. A water collection tank 511 is provided on the upper left rear part of the base plate 1. A threaded connecting pipe 510 is provided on the upper end of the water collection tank 511. An air outlet 512 is provided on the upper end of the water collection tank 511. A high-temperature resistant sponge 58 is fixed to the lower inner side of the sponge mounting cylinder 56. A sliding plate 59 is provided on the upper end of the high-temperature resistant sponge 58. The sliding plate 59 is slidably connected to the upper inner side of the sponge mounting cylinder 56. The upper and lower inner sides of the sponge mounting cylinder 56 are threadedly connected to the mounting pipe 54 and the threaded connecting pipe 510, respectively.

[0030] The sponge installation cylinder 56 is connected in series with the installation pipe 54 and the water collection tank 511. The high-temperature resistant sponge 58 absorbs water vapor. The electric telescopic rod 55 pushes the perforated push plate 57 to push the sliding plate 59 to compress the sponge, quickly squeezing out the water inside the sponge. The threaded connection pipe 510 enables the sponge to be quickly installed and removed.

[0031] The steam recovery assembly 5 also includes a filter box 513. The filter box 513 is located in the middle of the upper right side of the base plate 1. The inlet of the filter box 513 is connected to the water collection tank 511 and the mounting groove 31 respectively, and the outlet of the filter box 513 is connected to the water storage tank 310.

[0032] The filter box 513 connects the water collection tank 511 and the water storage tank 310, and the recycled water is filtered twice and then reinjected into the cleaning system.

[0033] The working principle of the stainless steel hot-rolled strip cooling device provided by this utility model is as follows: The stainless steel hot-rolled strip is guided into the high-pressure cleaning assembly 3 by guide wheel 33. The motor 39 drives the high-pressure pipe 34 to rotate through the belt 37 and gear 38. Water is supplied by the water tank 310 and sprayed at multiple angles through the nozzle 35, achieving preliminary cooling while removing surface oxide scale. Impurities are collected by the detachable filter plate 32. After treatment, the strip enters the cooling pool 41 of the cooling assembly 4, where it is supported by the support wheel 42. The guide wheel 43 adjusts the trajectory. The circulating water path maintains the flow of coolant through the inlet 46 and outlet 47. The temperature and water level detectors 45 monitor the cooling status, and the electromagnetic ultrasonic metal flaw detector 44 simultaneously detects internal defects. The steam recovery assembly 5 covers the work area through the water vapor collection hood 51. The negative pressure fan 53 draws steam and delivers it to the installation pipe 54 through the connecting pipe 2 52. After the high temperature resistant sponge 58 absorbs the moisture, the electric telescopic rod 55 drives the push plate 57 to compress the sliding plate 59 and squeeze the liquid into the water collection tank 511. The filter box 513 purifies the recovered water and then re-injects it into the water storage tank 310 for recycling.

[0034] It is worth noting that, in the above embodiments, the input terminals of the motor 39, the electromagnetic ultrasonic metal flaw detector 44, and the electric telescopic rod 55 are electrically connected to the output terminal of the external power supply through an external PLC controller, and the output terminal of the temperature and water level detector 45 is electrically connected to the external PLC controller. The motor 39 is a servo motor, and the external PLC controller controls the operation of the motor 39, the electromagnetic ultrasonic metal flaw detector 44, and the electric telescopic rod 55 using methods commonly used in the prior art.

[0035] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A cooling device for hot-rolled stainless steel strip, characterized in that: It includes a base plate (1), a high-pressure cleaning assembly (3), a cooling assembly (4), and a steam recovery assembly (5); Base plate (1): The upper end is equipped with a high-pressure cleaning component (3), a cooling component (4) and a steam recovery component (5); High-pressure cleaning assembly (3): includes mounting groove (31), filter plate (32), guide wheel (33), high-pressure pipe (34), nozzle (35), pulley (36), belt (37), gear (38), motor (39), water tank (310), and connecting pipe (311). The mounting groove (31) is fixedly connected to the front end of the base plate (1). Six guide wheels (33) are rotatably connected to the inner side of the mounting groove (31). The filter plate (32) is slidably connected to the front side of the lower end of the mounting groove (31). The high-pressure pipe (34) is rotatably connected between the guide wheels (33) on the same side. The inner side of the left end of the high-pressure pipe (34) is connected to the connecting pipe (311) through a sealed bearing. Rotary connection, a water storage tank (310) is fixedly connected to the upper left side of the base plate (1), a water pump is provided inside the water storage tank (310), the outlet of the water storage tank (310) is connected to the connecting pipe (311), a pulley (36) is fixedly connected to the right end of the high pressure pipe (34), the pulley (36) on the same side is connected by a belt (37), a gear (38) is fixedly connected to the left end of the outer side of the high pressure pipe (34), the two gears (38) mesh, a motor (39) is provided at the right end of the mounting groove (31), the output shaft of the motor (39) is fixedly connected to the rotation center of a pulley (36), and multiple nozzles (35) are provided at the outlet of the high pressure pipe (34).

2. The stainless steel hot-rolled strip cooling device according to claim 1, characterized in that: The cooling assembly (4) includes a cooling pool (41), support wheels (42), guide wheels (43), and an electromagnetic ultrasonic metal flaw detector (44). The cooling pool (41) is provided at the rear end of the base plate (1). Multiple support wheels (42) are rotatably connected to the lower inner side of the cooling pool (41). Two guide wheels (43) are respectively provided at the front and rear ends of the cooling pool (41). An electromagnetic ultrasonic metal flaw detector (44) is provided at the middle of the upper inner side of the cooling pool (41).

3. A stainless steel hot-rolled strip cooling device according to claim 2, characterized in that: The cooling assembly (4) also includes a temperature and water level detector (45), an inlet (46) and an outlet (47). The outlet (47) and the inlet (46) are respectively provided on the front and rear sides of the right end of the cooling pool (41). The temperature and water level detector (45) is provided in the middle of the right side of the cooling pool (41). The probe of the temperature and water level detector (45) is inside the cooling pool (41).

4. A stainless steel hot-rolled strip cooling device according to claim 1, characterized in that: The steam recovery assembly (5) includes a water vapor collection hood (51), a connecting pipe (2) (52), a negative pressure fan (53), an installation pipe (54), an electric telescopic rod (55), and a push plate (57). The water vapor collection hood (51) is provided on the upper side of the high-pressure cleaning assembly (3) and the cooling assembly (4) at the upper end of the base plate (1). The upper rear side of the water vapor collection hood (51) is connected to one end of the connecting pipe (2) (52). The other end of the connecting pipe (2) (52) is connected to the air inlet of the negative pressure fan (53). The air outlet of the negative pressure fan (53) is connected to the installation pipe (54). The upper end of the installation pipe (54) is provided with an electric telescopic rod (55). The lower end of the electric telescopic rod (55) is provided with a push plate (57). The push plate (57) is slidably connected to the inner side of the installation pipe (54). The push plate (57) is provided with multiple through holes.

5. A stainless steel hot-rolled strip cooling device according to claim 4, characterized in that: The steam recovery assembly (5) also includes a sponge mounting cylinder (56), a high-temperature resistant sponge (58), a sliding plate (59), a threaded connecting pipe (510), a water collection tank (511), and an air outlet (512). A water collection tank (511) is provided on the upper left rear part of the bottom plate (1). A threaded connecting pipe (510) is provided on the upper end of the water collection tank (511). An air outlet (512) is provided on the upper end of the water collection tank (511). A high-temperature resistant sponge (58) is fixed on the lower inner side of the sponge mounting cylinder (56). A sliding plate (59) is provided on the upper end of the high-temperature resistant sponge (58). A sliding plate (59) is slidably connected to the upper inner side of the sponge mounting cylinder (56). The upper and lower inner sides of the sponge mounting cylinder (56) are threadedly connected to the mounting pipe (54) and the threaded connecting pipe (510), respectively.

6. A stainless steel hot-rolled strip cooling device according to claim 5, characterized in that: The steam recovery assembly (5) also includes a filter box (513). The filter box (513) is provided in the middle of the upper right side of the base plate (1). The inlet of the filter box (513) is connected to the water collection tank (511) and the mounting groove (31) respectively. The outlet of the filter box (513) is connected to the water storage tank (310).

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