Active split washing circulating cleaning equipment

Abstract

The invention provides active split washing circulating cleaning equipment, and relates to the technical field of industrial fluid treatment, the active split washing circulating cleaning equipment comprises a box body, a recovery assembly and a liquid outlet pipeline, and a negative pressure generation device, a liquid level regulation and control assembly and a filter screen are sequentially arranged in the box body from top to bottom; the filter screen is arranged in the middle of the box body and divides the bottom of the box body into a water purification area; the liquid level regulation and control assembly is used for controlling the liquid level of the cooling liquid in the box body to be located between the filter screen and the negative pressure generation device; the recycling assembly is connected with a collecting pipeline, and the end of the collecting pipeline penetrates through the side wall of the box body and extends to the position between the filter screen and the liquid level adjusting and controlling assembly. The liquid outlet pipeline is communicated with the bottom of the box body and is used for leading out the cooling liquid in the water purification area. According to the technical scheme, the multiple pollution problems of metal dust, oil mist and cutting fluid in a small numerical control machine tool and a machining center can be solved at the same time.

Description

Technical Field

[0001] This invention relates to the field of industrial fluid treatment technology, and in particular to an active, split-type water washing and circulating cleaning device. Background Technology

[0002] In modern metal cutting processes, the high-speed rotation of machine tool spindles generates a large amount of metal dust, cutting debris, and oil mist due to friction between the cutting tool and the workpiece. These pollutants not only remain suspended in the air but also often mix with cutting fluid, forming solid-liquid waste. If these pollutants are not removed in a timely manner, they will have multiple negative impacts on the production environment, equipment precision, operator health, and resource costs.

[0003] Current technology typically involves placing a tray under the workpiece to catch falling debris and cutting fluid, which are then collected and settled. However, this method struggles to address dust and oil mist contamination issues, which are particularly pronounced in small CNC machine tools and machining centers where space is limited. Summary of the Invention

[0004] The present invention aims to solve the problems in the background art by providing an active split-type water washing and circulating cleaning device, which simultaneously solves the multiple pollution problems of metal dust, oil mist and cutting fluid in small CNC machine tools and machining centers.

[0005] To achieve the above objectives, the technical solution used in this invention is as follows: An active, split-type water-washing and circulating cleaning device includes: The housing contains, from top to bottom, a negative pressure generating device, a liquid level control component, and a filter screen. The filter screen is located in the middle of the housing, dividing the bottom of the housing into a clean water zone. The liquid level control component is used to control the liquid level of the coolant in the housing between the filter screen and the negative pressure generating device.

[0006] The recovery assembly is connected to a collection pipe, the end of which passes through the side wall of the tank and extends between the filter and the liquid level control assembly.

[0007] The coolant outlet pipe is connected to the bottom of the tank and is used to draw out the coolant from the clean water area.

[0008] Furthermore, the liquid level control component includes a float that floats on the surface of the coolant, and a detection device for detecting the position of the float is provided on the inner wall of the tank.

[0009] Furthermore, the liquid level control assembly also includes a circular baffle cover that can move up and down along the tank body, with a float located in the middle of the baffle cover and several vent holes evenly distributed around the float.

[0010] Furthermore, the vent is arc-shaped, and baffles are provided at both the top and bottom ends of the vent, making the cross-section of the vent a meander pattern.

[0011] Furthermore, a condensate tray is fixedly installed on the top of the baffle cover. The condensate tray is a funnel-shaped disc with an open top, and its upper end has a gap with the inner wall of the box to allow gas to pass through; the outer surface of the condensate tray has a hydrophilic coating.

[0012] Furthermore, the negative pressure generating device includes a drive motor and an impeller driven by the drive motor. A cylindrical air filter cover is provided at the front end of the impeller. The lower end of the air filter cover is open and extends into the inside of the funnel-shaped opening of the condensate pan at a preset height from the bottom of the condensate pan. A filter element is installed at the lower end opening of the air filter cover.

[0013] Furthermore, the lower opening edge of the air filter cover has an outwardly extending sealing flange, and a corresponding sealing groove is provided on the funnel-shaped inner wall of the condensate tray; the condensate tray can move upward with the baffle cover, so that the sealing flange is embedded in the sealing groove to form a sealing connection.

[0014] Furthermore, the filter screen is detachably installed at the bottom of a cylindrical mounting frame, the top of the cylindrical mounting frame extends outward with a frame, the inner wall of the box is provided with an annular step for supporting the frame, and a sealing ring is provided between the annular step and the frame; the end of the collection pipe that extends into the box is bent upward to form a vertically upward nozzle, the outlet of the nozzle points to the float and is located below the liquid surface.

[0015] Furthermore, the recovery assembly includes a cone-shaped housing with an upward opening, at which a filter disc is detachably mounted; the sidewalls of the recovery assembly are smooth, concave conical surfaces for guiding trapped impurities to the bottom region; and the collection pipe is detachably connected to the sidewalls of the recovery assembly.

[0016] Furthermore, it also includes a blower; the blower is connected to the space above the recovery assembly via an air supply duct and is used to blow airflow into the open area of ​​the recovery assembly.

[0017] Compared with the prior art, the beneficial effects of the present invention are: it is equipped with a negative pressure generating device, which can actively recover the cutting fluid in the recovery component, and can absorb the metal dust and oil mist generated during the cutting process through the recovery component. The outlet of the collection pipe is set below the liquid surface of the cutting fluid to complete the water washing of the exhaust gas, thereby simultaneously solving the multiple pollution problems of metal dust, oil mist and cutting fluid in small CNC machine tools and machining centers. Attached Figure Description

[0018] Figure 1 This is a cross-sectional schematic diagram of an active split-type water washing and circulating cleaning device in an embodiment of the present invention; Figure 2 This is a schematic diagram of the appearance of the active split-type water washing and circulating cleaning device in an embodiment of the present invention; Figure 3 This is a schematic diagram of the liquid level control component in an embodiment of the present invention; Figure 4 This is a bottom view of the baffle cover in an embodiment of the present invention; Figure 5 For the present invention Figure 4 A cross-sectional view of the middle baffle cover along AA; Figure 6 This is a schematic diagram of the negative pressure generating device in an embodiment of the present invention; Figure 7 This is a schematic diagram of the filter installation in an embodiment of the present invention; Figure 8 This is a schematic diagram of the structure of the recycling component in this embodiment of the present invention.

[0019] Among them, 1: box body; 2: negative pressure generating device; 3: liquid level control component; 4: filter screen; 5: recovery component; 6: collection pipe; 7: liquid outlet pipe; 11: box cover; 21: drive motor; 22: air filter cover; 31: float; 32: flow baffle cover; 33: vent hole; 34: condensate tray; 41: cylindrical mounting bracket; 51: conical shell; 52: filter plate. Detailed Implementation

[0020] It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0021] 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 a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0022] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly. The connection can be a direct connection or an indirect connection.

[0023] Furthermore, in this invention, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this invention.

[0024] One embodiment of this application provides an active, split-type water-washing and circulating cleaning device, such as... Figure 1 and Figure 2 As shown, the active split-type water washing and circulating cleaning device provided in this embodiment includes: The housing 1 contains, from top to bottom, a negative pressure generating device 2, a liquid level regulating component 3, and a filter screen 4. The filter screen 4 is located in the middle of the housing 1, dividing the bottom of the housing 1 into a clean water zone. The liquid level regulating component 3 is used to control the liquid level of the coolant in the housing 1 to be between the filter screen 4 and the negative pressure generating device 2.

[0025] The negative pressure generating device 2 can be any mechanism capable of generating negative pressure within the housing 1, preferably a suction power system consisting of a brushless drive motor 21 and an impeller. The filter screen 4 is used to filter the cutting fluid recovered under negative pressure. The upper and lower parts of the housing need to be completely separated to prevent debris from the cutting fluid from entering the clean water area. The liquid level control component 3 can be a mechanical float valve, an electronic sensor, or an overflow structure, or a combination of these. The liquid level control component 3 controls the liquid level to be lower than the negative pressure generating device 2, preventing excessively high liquid levels from entering the negative pressure generating device 2, thus isolating it from contaminated liquid and avoiding equipment damage or affecting negative pressure generation. The liquid level control component 3 also controls the liquid level to be higher than the filter screen 4, ensuring that the coolant to be filtered can fully contact and flow through the filter screen 4 for effective filtration.

[0026] The recovery component 5 is connected to a collection pipe 6, the end of which passes through the side wall of the housing 1 and extends between the filter screen 4 and the liquid level control component 3.

[0027] The recovery component 5 is positioned upwards below the machine tool's machining area to actively absorb metal dust, oil mist, and coolant containing impurities. In air-cooled machine tools, it can also be positioned on the side of the machining area or upside down above the side of the machining area to further enhance its ability to capture metal dust and oil mist. The collection pipe 6 can be relatively thick to prevent debris from clogging it. The recovery component 5 is preferably connected to the collection pipe 6 using a quick-release structure for easy cleaning and replacement. The collection pipe 6 can also be connected to other suction heads for cleaning the equipment. The outlet of the collection pipe 6 is located between the filter screen 4 and the liquid level control component 3, ensuring the outlet is below the liquid level. The cutting action in the housing 1 allows for water washing of the waste liquid and exhaust gas collected in the collection pipe 6, removing contaminants from the gas.

[0028] The liquid outlet pipe 7 is connected to the bottom of the housing 1 and is used to draw out the coolant from the clean water area.

[0029] The coolant outlet pipe 7 draws the coolant directly from the clean water area, ensuring the cleanliness of the output liquid. The drawn coolant can be transported to the equipment that needs cooling for recycling. Preferably, it can provide a power source for the coolant outlet pipe 7 to improve the initiative of coolant circulation. The coolant outlet pipe 7 can be detachably connected to the external spray pipe.

[0030] In summary, this embodiment includes a negative pressure generating device 2, which actively recovers the cutting fluid from the recovery component 5. The recovery component 5 also absorbs metal dust and oil mist generated during the cutting process. The outlet of the collection pipe 6 is positioned below the cutting fluid level, allowing for the washing of exhaust gases. This enables a single device to simultaneously address the multiple pollution problems of metal dust, oil mist, and cutting fluid in small CNC machine tools and machining centers. This embodiment achieves efficient interception of solid impurities in the waste fluid and recycling of the cutting fluid through a circulation structure, reducing resource consumption and environmental pressure.

[0031] In this embodiment, the housing 1 can be equipped with a portable handle and adjustment knob on the top, and lockable casters on the bottom for easy transport of the equipment. This not only reduces the space occupied by the equipment but also allows for flexible adaptation to different machine tool workstations or temporary processing areas, making it particularly suitable for small, mobile, or high-precision processing equipment.

[0032] like Figures 3 to 5 As shown, in this embodiment, the liquid level control component 3 includes a float 31, which floats on the surface of the coolant. The inner wall of the housing 1 is provided with a detection device for detecting the position of the float 31.

[0033] The detection device can be a photoelectric sensor or a position sensor. In this embodiment, the liquid level control component 3 combines a float 31 and a detection device to separate the "sensing" and "execution" functions. The float 31 is only responsible for reliably reflecting the liquid level, while the execution action is completed by the detection device. The detection device can be connected to the solenoid valves on the collection pipe 6 and the outlet pipe 7, and can also be connected to an alarm device to close the pipes and sound an alarm when the liquid level is too high. Compared with existing mechanical float valves, this embodiment can avoid the problems of jamming and wear that may occur due to mechanical linkage, resulting in control failure, and has higher reliability.

[0034] In this embodiment, the liquid level control component 3 also includes a circular baffle cover 32, which can move up and down along the box body 1. A float 31 is disposed in the middle of the baffle cover 32, and a number of vent holes 33 are evenly distributed around the float 31.

[0035] The baffle 32 can be a disc-shaped component with a diameter slightly smaller than the inner diameter of the housing 1, located on the surface of the coolant. It works in conjunction with the float 31 to stabilize the flow. The float 31 is positioned in the middle of the baffle 32 to block external liquid from entering and prevent splashing. Vent holes 33 are located at the edge of the baffle to extend the air passage and reduce moisture in the gas. The float 31 can also be integrated into the baffle 32 as an inverted groove structure. More preferably, the inverted groove structure is filled with a buoyant material to improve the stability of the float 31. The baffle 32 can have a clearance to avoid contact with the collection pipe 6. This clearance prevents the baffle 32 from contacting the collection pipe 6 when it moves up and down, ensuring the operational stability of the liquid level control component 3.

[0036] like Figure 5 As shown, in this embodiment, the vent 33 is arc-shaped, and baffles are provided at both the upper and lower ends of the vent 33, so that the cross-section of the vent 33 is a meander pattern.

[0037] Multiple vents 33 are arranged concentrically on the baffle cover 32, forming an overall arc-shaped distribution pattern. At the inlet and outlet of each vent 33, a raised strip structure is provided, forming a maze-like channel that forces any fluid entering or leaving the channel to change its initial vertical direction, potentially turning again in the middle of the channel, and finally being blocked and guided out by the lower baffle. This embodiment not only prevents liquid from entering the upper space of the tank 1 when the liquid surface sloshes, but also allows water vapor-containing gas to repeatedly collide with the inner walls of the vents 33 as it passes through. Small droplets coalesce into larger droplets, which eventually flow back along the wall due to gravity, reducing the passage of particles and water vapor in the gas, achieving the effects of reduced flow rate, splash prevention, and gas-liquid separation.

[0038] In this embodiment, a condensate tray 34 is fixedly installed on the top of the baffle cover 32. The condensate tray 34 is a funnel-shaped disc with an open top, and its upper end has a gap with the inner wall of the box 1 to allow gas to pass through; the outer surface of the condensate tray 34 has a hydrophilic coating.

[0039] The condensate tray 34 is fixed to the top of the baffle cover 32 and can move up and down with the baffle cover 32. Its flared structure protects the area directly below the negative pressure generator 2, allowing gas to pass through the annular gaps around it, further protecting the negative pressure generator 2 and preventing droplet splashing and contamination. The flared structure at the top gradually widens radially, forming a large contact area. When the rising hot and humid airflow impacts the inclined inner wall of the flared condensate tray 34, the water vapor condenses into droplets on the tray surface due to the relatively low temperature of the tray. Under the influence of gravity, the condensed droplets flow downwards along the inclined wall of the flared tray and eventually drip back below the baffle cover 32, achieving recovery. The partially dried gas continues to be drawn upwards by the negative pressure device through the gap between the upper end of the condensate tray 34 and the tank wall. The outer surface of the condensate tray 34 has a hydrophilic coating, which further enhances its condensation effect on the hot and humid airflow.

[0040] like Figure 6 The diagram shown is a structural schematic of the negative pressure generating device in this embodiment. In this embodiment, the negative pressure generating device 2 includes a drive motor 21 and an impeller driven by the drive motor 21. A cylindrical air filter cover 22 is provided at the front end of the impeller. The lower end of the air filter cover 22 is open and extends into the inside of the funnel-shaped opening of the condensate pan 34, at a preset height from the bottom of the condensate pan 34. A filter element is installed at the lower end opening of the air filter cover 22.

[0041] The negative pressure generating device 2 can be installed on the cover 11 of the housing 1 and can be connected to the housing by a snap-fit ​​for easy disassembly. The drive motor 21 can be set outside the cover, and its main shaft is connected to the impeller. The impeller rotates at high speed, continuously drawing air out of the housing 1 through the cylindrical air filter cover 22, thereby establishing a stable negative pressure environment in the housing 1. In this embodiment, the impeller is preferably an axial flow impeller. The cylindrical air filter cover 22 not only protects the impeller from accidental contact with the high-speed rotating impeller by external objects, but also further extends the gas passage by nesting with the condenser plate. After the airflow enters from the upper end of the funnel-shaped opening of the condensate plate 34, it needs to descend and bypass the cylindrical wall of the cylindrical air filter cover 22, and then enter from the bottom of the cylindrical air filter cover 22, increasing the flow distance of the hot and humid gas, further reducing the gas humidity, and protecting the drive motor 21. The filter element can be secured to the bottom of the air filter cover 22 via a hook. The filter element is preferably a HEPA high-efficiency particulate air filter. The bottom of the condensate tray 34 forms a relatively stable airflow convergence area, which helps maintain stable airflow before passing through the filter element. The standard for a HEPA high-efficiency particulate air filter is that it can filter at least 99.97% of particles with a diameter greater than or equal to 0.3 micrometers. The filtration targets used here are extremely small coolant aerosols, oil mist, and dust from the ambient air that may penetrate the condensate tray 34.

[0042] This embodiment ensures that the air entering the centrifugal impeller and drive motor 21 is extremely clean and dry through dual protection of condensation recovery and physical interception. This solves the problems of internal corrosion, scale buildup, lubrication failure, dynamic imbalance, and even motor short circuit caused by the intake of oil mist and moisture in negative pressure pumps in such equipment, thereby reducing the failure rate of core power components and extending their service life by several times.

[0043] In this embodiment, the lower opening edge of the air filter cover 22 has an outwardly extending sealing flange, and the condensate tray 34 has a corresponding sealing groove on its funnel-shaped inner wall; the condensate tray 34 can move upward with the baffle cover 32, so that the sealing flange is embedded in the sealing groove to form a sealing connection.

[0044] The condensate tray 34 can be connected to the baffle cover 32 via a snap-fit, facilitating disassembly and cleaning. When the water level rises sharply, the float 31 pushes the condensate tray 34 upward through the baffle cover 32, allowing the sealing flange to nest with the sealing groove. Preferably, an elastic material can be coated on the sealing flange and sealing groove to generate sufficient pressure on their contact surface to block the gas passage, forming a physical barrier that effectively prevents liquid leakage. This embodiment can promptly seal the air filter cover 22 when there is excessive cutting fluid in the tank 1, protecting the drive motor 21 and greatly improving the safety level. This gives the active split-type water washing and circulating cleaning equipment provided in this embodiment the advantages of long-term reliability and ease of maintenance. The intelligent control system and anti-backflow design in this embodiment can ensure the safe, stable, and reliable operation of the equipment in complex industrial environments, avoiding common faults such as waste liquid backflow, motor short circuit, and filter screen 4 clogging.

[0045] like Figure 7 The diagram shows the installation of the filter screen in this embodiment. In this embodiment, the filter screen 4 is detachably installed at the bottom of a cylindrical mounting bracket 41. A frame extends outward from the top of the cylindrical mounting bracket 41. The inner wall of the housing 1 is provided with an annular step for supporting the frame. A sealing ring is provided between the annular step and the frame. The end of the collecting pipe 6 that extends into the housing 1 is bent upward to form a vertically upward nozzle. The outlet of the nozzle points to the float 31 and is located below the liquid surface.

[0046] The cylindrical mounting bracket 41 is enclosed on all four sides, and the sealing of the bottom clean water area of ​​the housing 1 is further improved by gaskets. A vertical filtration channel is formed above the clean water area. The cutting fluid entering the clean water area must pass through the cylindrical space of the cylindrical mounting bracket 41 and flow through the filter screen 4 at its bottom, preventing unfiltered cutting fluid from entering the clean water area. A handle can be provided on the cylindrical mounting bracket 41 for easy disassembly and cleaning. The bottom of the cylindrical mounting bracket 41 is provided with a skeleton structure to support the filter screen 4. The filter screen 4 can also be equipped with a quick-release structure to connect with the cylindrical mounting bracket 41, improving cleaning efficiency. The upward-facing nozzle of the collection pipe 6 can prevent the fluid from impacting the filter screen 4, and the nozzle outlet is located below the liquid surface, which can wash the incoming gas-liquid mixture and purify the gas. The upward-facing nozzle outlet helps to form a local vortex, which can entrain suspended impurities near the bottom of the float 31, achieving efficient and active targeted removal. In this embodiment, all structures can be connected by a modular quick-release structure, which makes it easy for users to disassemble components such as filter screen 4, housing 1, and various pipes, so as to achieve rapid cleaning and reduce maintenance costs and downtime.

[0047] like Figure 8The diagram shown is a structural schematic of the recycling component in this embodiment. In this embodiment, the recycling component 5 includes a cone-shaped shell 51 with an upward opening, and a filter disc 52 is detachably installed at the opening. The sidewall of the recycling component 5 is a smooth, concave cone surface, which is used to guide the trapped impurities to the bottom area. The collection pipe 6 is detachably connected to the sidewall of the recycling component 5.

[0048] The recovery component 5 serves as the first filtration barrier before wastewater and dust enter the housing 1. Its conical opening significantly expands the impurity capture area, ensuring the effective collection of cutting fluid and efficiently intercepting more floating impurities. Compared to existing technologies, this embodiment utilizes a negative pressure generator 2 connected to the conical housing 51 to actively adsorb particulate impurities such as metal shavings, reducing the concentrated accumulation of particulate impurities on the filter disc 52. The detachable filter disc 52 at the opening constitutes an effective primary filter, intercepting large particles to prevent downstream pipe blockage and protect the subsequent system. The filter disc 52 can be made of stainless steel porous filter screen 4 or polymer composite filter screen 4, intercepting solid particles larger than 1mm in diameter, achieving coarse-fine separation, preventing large particles from entering the housing 1 and causing blockages. Furthermore, the housing 1 only stores fine particles, greatly increasing storage capacity and eliminating the need for frequent cleaning, thus improving the user experience. The filter disc 52 can be connected to the conical housing 51 via a snap-fit ​​or magnetic structure, allowing for quick disassembly and cleaning. This removes large particles from the filter disc 52 without opening the housing 1, saving time on equipment cleaning and maintenance. The detachable connection between the recovery component 5 and the pipe allows for easy cleaning or replacement of both the filter disc 52 and the interior of the housing, significantly reducing the complexity and time cost of equipment maintenance. It also allows for changing the suction head to clean the machine tool. The separate design of the recovery component 5 and the collection pipe 6 enables the active, separate water-washing circulation cleaning device provided in this embodiment to be used as a handheld device for cleaning inside machine tools or in confined spaces, greatly improving the device's flexibility and applicability. The collection pipe 6 can also be equipped with various suction heads, expanding the cleaning range.

[0049] In this embodiment, the active split-type water washing and circulating cleaning equipment provided in this embodiment also includes a blower; the blower is connected to the space above the recycling component 5 through an air supply pipe and is used to blow airflow into the open area of ​​the recycling component 5.

[0050] The blower can be any device capable of generating directional airflow, preferably an independent blower or fan. It blows air into the space above the recovery assembly 5 through an air supply duct. The shape of the air supply duct is designed to ensure that the airflow blows vertically or obliquely from directly above the recovery assembly 5 towards its open area, helping to guide and capture impurities. This embodiment can actively blow airflow to direct impurities in the air in the machine tool processing area to the filter disc 52 of the recovery assembly 5, reducing the diffusion of impurities in the machine tool processing area and improving the capture speed and capacity. The blower, in conjunction with the negative pressure generating device 2, may form an airflow circulation, assisting the gas flow within the housing 1, promoting the evaporative cooling effect, and indirectly enhancing the cooling performance.

[0051] The above description is merely a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. An active split water washing cycle cleaning apparatus, characterized by, The utility model provides a kind of water cooling system, including: Box (1), the box (1) inside is sequentially provided with negative pressure generating device (2), liquid level control component (3) and filter screen (4) from top to bottom;The filter screen (4) is arranged in the middle of the box (1), and the bottom of the box (1) is separated into clean water area;The liquid level control component (3) is used to control the liquid level of cooling liquid in the box (1) between the filter screen (4) and the negative pressure generating device (2); Recycling assembly (5), the recycling assembly (5) is connected with collection pipeline (6), and the end of the collection pipeline (6) penetrates through the side wall of the box (1) and extends between the filter screen (4) and the liquid level control component (3); Liquid outlet pipeline (7) is communicated with the bottom of the box (1), and is used to lead out the cooling liquid in the clean water area.

2. The active split-wash cycle cleaning appliance of claim 1, wherein, The liquid level control component (3) includes a float (31) that floats on the surface of the cooling liquid, and the inner wall of the box (1) is provided with a detection device for detecting the position of the float (31).

3. The active split-wash cycle cleaning appliance of claim 2, wherein, The liquid level control component (3) further includes a circular plate-shaped flow blocking cover (32) that can move up and down along the box (1), the float (31) is arranged in the middle of the flow blocking cover (32), and a plurality of air vents (33) are uniformly distributed around the float (31).

4. The active split-wash cycle cleaning appliance of claim 3, wherein, The air vent (33) is arc-shaped, and the upper and lower ends of the air vent (33) are provided with a baffle, so that the cross section of the air vent (33) is a fret-shaped.

5. The active split-wash cycle cleaning appliance of claim 3, wherein, The top of the flow blocking cover (32) is fixedly installed with a condensate pan (34), which is a horn-shaped disc with an open upper end, and the upper end has a gap with the inner wall of the box (1) for accommodating gas passing through; The outer surface of the condensate pan (34) has a hydrophilic coating.

6. The active split-wash cycle cleaning appliance of claim 5, wherein, The negative pressure generating device (2) includes a drive motor (21) and an impeller driven by the drive motor (21), and the front end of the impeller is provided with a cylindrical air filter cover (22); The lower end of the air filter cover (22) is open, and extends to the inside of the horn-shaped opening of the condensate pan (34), at a predetermined height from the bottom of the condensate pan (34); A filter element is installed at the lower end opening of the air filter cover (22).

7. The active split-wash cycle cleaning appliance of claim 6, wherein, The lower end opening edge of the air filter cover (22) forms a sealing flange extending outward, and a sealing groove is correspondingly provided on the horn-shaped inner wall of the condensate pan (34); The condensate pan (34) can move upward with the flow blocking cover (32), so that the sealing flange is embedded in the sealing groove to form a sealed connection.

8. The active split-wash cycle cleaning appliance of claim 2, wherein, The filter screen (4) is detachably installed at the bottom of a cylindrical mounting bracket (41), the top of the cylindrical mounting bracket (41) extends outward to a frame, the inner wall of the box (1) is provided with a ring-shaped step for supporting the frame, and a sealing ring is arranged between the ring-shaped step and the frame; The end of the collection pipeline (6) extending into the box (1) is bent upward to form a vertical upward nozzle, and the outlet of the nozzle points to the float (31) and is below the liquid level.

9. The active split-wash cycle cleaning appliance of claim 8, wherein, The recycling assembly (5) comprises a conical shell (51) with an upwardly open top, and a filter disc (52) is detachably installed at the open top of the conical shell (51); the sidewall of the recycling assembly (5) is a smooth concave conical surface for guiding the trapped impurities to the bottom area; and the collecting pipe (6) is detachably connected with the sidewall of the recycling assembly (5).

10. The active split-wash cycle cleaning appliance of claim 9, wherein, The air blowing device is in communication with the space above the recycling assembly (5) through an air blowing pipe, and is used for blowing air flow to the open top area of the recycling assembly (5).

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