Oil-water separator with adjustable level control and multiple zones

Abstract

The present invention is an oil-water separator with an adjustable liquid level control device and is provided with multiple partitions, which are sequentially provided with a cyclone separator, a separation tank, a heating separation box, and a water outlet tank; the bottom end of the cyclone separator is connected to a main sewage pipe, which is used to discharge solid impurities; the top of the cyclone separator is connected to the separation tank, and the horizontal position of the filter screen of the separation tank is higher than the water inlet of the cyclone separator; the first water outlet pipe of the separation tank is connected to the heating separation box, and a liquid level monitoring box is provided at the top of the heating separation box, and the liquid level monitoring box is provided with a partition device with adjustable height, which divides the liquid level monitoring box into an oil storage chamber and a connecting chamber, the connecting chamber is connected to the heating separation box, and the oil storage chamber is isolated from the heating separation box; the heating separation box is provided with a liquid level connecting pipe connected to the water outlet tank; the water outlet tank is used to discharge sewage; the liquid level can be monitored for incoming oil layers of different thicknesses, and the oil layers can be discharged in a targeted manner; the structural design of the oil-water separation is compact.

Description

Technical Field

[0001] The invention relates to the technical field of oil-water separators, and in particular to an oil-water separator with an adjustable liquid level control device and provided with multiple partitions. Background Art

[0002] At present, most of the finished catering oil-water separators on the market use physical methods to separate oil and water. The principle is that the specific gravity of oil is less than that of water. The oil-water mixture flows into the oil-water separator and stands for a period of time, the oil and water are separated, and then the floating oil or water is discharged separately. The oil discharge methods include manual cleaning, conveyor belt type or scraper oil scraping method; adding an oil discharge valve at the working liquid level of the oil-water separator to discharge the grease floating on the surface; another design is to use a top cone structure in the oil-water separator design, the working liquid level of the oil-water separator is at the cone structure, and an oil discharge port is set below the working liquid level. When the oil needs to be discharged, open the oil discharge switch on the oil discharge pipe to discharge the grease.

[0003] However, a lot of kitchen waste now contains both solid residues and oil stains. In this more complex material environment, the existing equipment usually uses multiple filtrations and then allows the oil to stand to drain for this complex material. However, for concentrated and complex materials such as kitchen waste, filtering can easily cause the risk of being difficult to clean, and the oil in the kitchen waste is prone to solidification during the standing process, so this method is not suitable for use. At the same time, since the content of each incoming material is different, the existing oil-water separation device cannot control the boundary between oil discharge and water isolation very well. Therefore, there is an urgent need for an oil-water separation device suitable for complex incoming materials such as kitchen waste. Summary of the invention

[0004] In order to solve the existing problems, the present invention provides an oil-water separator with an adjustable liquid level control device and multiple partitions; according to the different oil layer thicknesses of the incoming materials, different liquid levels are adjusted to achieve accurate discharge of oil pollution.

[0005] To achieve the above-mentioned purpose, the present invention provides an oil-water separator with an adjustable liquid level control device and multiple partitions, which are arranged in sequence according to the material flow direction: a cyclone separator, a separation tank, a heating separation box, and a water outlet tank; the bottom end of the cyclone separator is connected to a main sewage pipe, and the main sewage pipe is used to discharge solid impurities; the top of the cyclone separator is connected to the separation tank, and the horizontal position of the filter screen of the separation tank is higher than the water inlet of the cyclone separator; the first water outlet pipe of the separation tank is connected to the heating separation box, and the top of the heating separation box is provided with a liquid level monitoring box, and the liquid level monitoring box is provided with a partition device with adjustable height, and the partition device divides the liquid level monitoring box into an oil storage chamber and a connecting chamber, the connecting chamber is connected to the heating separation box, and the oil storage chamber is isolated from the heating separation box; the heating separation box is provided with a liquid level connecting pipe connected to the water outlet tank; the water outlet tank is used to discharge sewage.

[0006] Preferably, a water inlet member is provided at one end of the cyclone separator close to the filter screen, the water inlet member is embedded in the inner cavity of the cyclone separator, and the water inlet direction of the water inlet member is the tangent direction of the cyclone separator.

[0007] Preferably, the water inlet component includes a threaded opening, and a wedge-shaped conduit connected to one end of the threaded opening, the threaded opening is used to connect to an external feed pipe, the cross-section of the wedge-shaped conduit gradually decreases from one end connected to the threaded opening to one end connected to the cyclone separator, and a side wall of the wedge-shaped conduit close to the cyclone separator is a curved wall, and the curved wall fits against the side wall of the cyclone separator.

[0008] Preferably, a movable pendulum is provided at one end of the curved wall embedded in the cyclone separator, and the outlet size of the wedge-shaped duct is expanded when the movable pendulum is squeezed.

[0009] Preferably, the filter screen is arranged between the water inlet member and the first water outlet pipe, and the filter screen is in a spherical shape with low sides and a raised middle.

[0010] Preferably, the heating separation box is a rectangular parallelepiped, and heating plates are attached to the four side walls thereof, and the heating plates are also attached to a heat-insulating cotton cover plate.

[0011] Preferably, the heating separation box is also provided with a partition plate, and a partition is provided between the upper end of the partition plate and the top of the heating separation box; the partition plate divides the heating separation box into a first chamber and a second chamber, the output end of the first water outlet pipe is placed at the bottom of the first chamber, the first end of the liquid level connecting pipe is arranged at the bottom of the second chamber, and the second end of the liquid level connecting pipe is connected with the water outlet tank; and the connecting chamber is connected with the second chamber; when the first chamber is full, the material overflows into the second chamber and then flows into the second chamber.

[0012] Preferably, the liquid level connecting pipe is provided with an input section, a horizontal flow section and an output end in sequence, the input section extends into the bottom of the second cavity, the horizontal flow section and the bottom shell of the liquid level monitoring box are on the same horizontal plane; the output section extends into the water outlet tank.

[0013] Preferably, the output section is threadedly connected to the horizontal flow section, and the output section is rotated with the horizontal flow section as the center to adjust the horizontal height of the output section; the liquid level monitoring box and the water outlet tank form a communicating vessel structure through the liquid level connecting pipe; wherein the partition device adjusts the height to change the liquid level of the liquid level monitoring box.

[0014] Preferably, the separating device comprises a fixed plate and a movable plate, the fixed plate separating the liquid level monitoring box into an oil storage chamber and a connecting chamber, and isolating the oil storage chamber from the heating separation box; the fixed plate is provided with a fixed column, and the movable plate is provided with a slide groove adapted to the fixed column; the height of the movable plate is adjusted to control the overflow of the oil layer.

[0015] The beneficial effects of the present invention are as follows: the present invention proposes an adjustable liquid level control device and an oil-water separator with multiple partitions, which are arranged in sequence according to the material flow direction: a cyclone separator, a separation tank, a heating separation box, and a water outlet box; the bottom end of the cyclone separator is connected to a main sewage pipe, which is used to discharge solid impurities; the top of the cyclone separator is connected to a separation tank, and the horizontal position of the filter screen of the separation tank is higher than the water inlet of the cyclone separator; the first water outlet pipe of the separation tank is connected to the heating separation box, and a liquid level monitoring box is arranged on the top of the heating separation box, and the liquid level monitoring box is provided with a partition device with adjustable height, which divides the liquid level monitoring box into an oil storage chamber and a connecting chamber, the connecting chamber is connected to the heating separation box, and the oil storage chamber is isolated from the heating separation box; the heating separation box is provided with a liquid level connecting pipe connected to the water outlet box; the water outlet tank is used to discharge sewage; the liquid level of incoming oil layers of different thicknesses can be monitored, and the oil layers can be discharged in a targeted manner; the structural design of the oil-water separation is compact. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0017] Figure 2 It is a schematic diagram of the structure of the cyclone separator and the water inlet member of the present invention;

[0018] Figure 3 This is a schematic diagram of the internal structure of the separation tank of the present invention when the top cover is removed;

[0019] Figure 4 It is the structural diagram of the heating separation box of the present invention;

[0020] Figure 5This is a structural diagram of the heating separation box of the present invention from another angle;

[0021] Figure 6 It is a schematic diagram of the water outlet tank and the liquid level connecting pipe of the present invention;

[0022] Figure 7 It is a schematic diagram of the structure of the liquid level monitoring box of the present invention.

[0023] The main component symbols are described as follows:

[0024] 1. Cyclone separator; 11. Water inlet; 111. Threaded port; 112. Wedge-shaped conduit; 1121. Curved wall;

[0025] 2. separation tank; 21. filter screen; 22. first water outlet pipe;

[0026] 3. Heating and separation box; 31. Heating plate; 32. Insulation cotton cover; 33. Separation plate; 331. First chamber; 332. Second chamber; 34. Liquid level observation tube; 35. Dosing port;

[0027] 4. Water outlet tank;

[0028] 5. Main sewage pipe;

[0029] 6. Liquid level monitoring box; 61. Separation device; 611. Fixed plate; 612. Movable plate; 62. Oil storage chamber; 63. Communication chamber;

[0030] 7. Liquid level connecting pipe; 71. Input section; 72. Horizontal flow section; 73. Output section. DETAILED DESCRIPTION

[0031] In order to more clearly illustrate the present invention, the present invention is further described below in conjunction with the accompanying drawings.

[0032] In the following description, general election example details are given to provide a deeper understanding of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all embodiments. It should be understood that the specific embodiments are only used to explain the present invention and are not used to limit the present invention.

[0033] It should be understood that when the terms "comprise" and or "include" are used in this specification, they indicate the existence of the stated features, integers, steps, operations, elements or components, but do not exclude the existence or addition of one or more other features, integers, steps, operations, elements, components or combinations thereof.

[0034] The present invention proposes an adjustable liquid level control device and an oil-water separator with multiple partitions, please refer to Figure 1-Figure 7. According to the material flow direction, the following are arranged in sequence: a cyclone separator 1, a separation tank 2, a heating separation box 3, and a water outlet box 4; the bottom end of the cyclone separator 1 is connected to a main sewage pipe 5, which is used to discharge solid impurities; the top of the cyclone separator 1 is connected to a separation tank 2, and the filter screen 21 of the separation tank 2 is horizontally higher than the water inlet of the cyclone separator; the first water outlet pipe 22 of the separation tank 2 is connected to the heating separation box 3, and the top of the heating separation box 3 is provided with a liquid level monitoring box 6, and the liquid level monitoring box 6 is provided with a height-adjustable partition device 61, the partition device 61 divides the liquid level monitoring box 6 into an oil storage chamber 62 and a connecting chamber 63, the connecting chamber 63 is connected to the heating separation box 3, and the oil storage chamber 62 is isolated from the heating separation box 3; the heating separation box 3 is provided with a liquid level connecting pipe 7 connected to the water outlet box 4; the water outlet box 4 is used to discharge sewage; wherein, the cyclone separator is a cone with a large top and a small bottom, and the horizontal height of the separation tank is higher than the liquid level monitoring box, and the main sewage pipe is also provided with a branch sewage pipe connected to the bottom of the heating separation box; and a water valve is provided between each sewage pipe. It rotates at high speed under the pressure of the water pump, and under the action of centrifugal force. Solid particles are thrown to the wall of the device and swirl down to the bottom of the cone. Clean water and oil flow into the middle separation tank of the equipment through the upper filter screen; therefore, solid materials such as kitchen waste are first separated by the cyclone separator, and the solid waste is discharged from the main sewage pipe. The liquid waste is slowly lifted up in the cyclone separator, filtered again in the separation tank, and then flows into the heating separation box for heating and oil-water separation; the heating is because the oil is easy to solidify, so it is necessary to heat it all the time to ensure the flow state; the material in the separator is slowly lifted up in the cyclone separator, and then slowly filtered through the filter screen, and the residue is intercepted in the cyclone separator to keep The larger water level difference prevents the sewage from falling into the heating separation box and adhering to the bottom shell of the separation box; the sewage flows into the heating separation box after being filtered, and then is heated to prevent solidification. At the same time, the liquid level rises slowly, and the oil floats on the upper layer and finally enters the liquid level observation box. Since the liquid level observation box and the water outlet tank form a communicating vessel, the liquid level is maintained at the same height. At the same time, the water level is adjusted by the partition device, and the liquid level monitoring box is a transparent device, so the dividing boundary between the oil layer and the water can be observed intuitively, so that the oil layer overflows into the oil storage cavity, and the water is discharged from the liquid level connecting pipe.

[0035] In this example, see Figure 2The end of the cyclone separator 1 close to the filter screen 21 is provided with a water inlet 11, which is embedded in the inner cavity of the cyclone separator 1, and the water inlet direction of the water inlet is the tangential direction of the cyclone separator. Because the cross section of the cyclone separator is a circular surface, feeding along the tangential direction can improve the high-speed rotation effect of the material and the centrifugal force during separation, so that the material separation and output are more convenient. At the same time, because the cyclone separator is a rotating state of sewage lifting and then passing through the filter screen, and the position of the first outlet pipe is higher than the position of the water inlet, if the water inlet is simply set to a straight-in type, it will inevitably cause backflow. If it is injected along the tangential direction, its water pressure is consistent with the internal movement direction of the cyclone separator, and the rising water flow also has a rotating force, so it is not easy to cause backflow.

[0036] In this embodiment, the water inlet 11 includes a threaded port 111 and a wedge-shaped conduit 112 connected to one end of the threaded port 111. The threaded port 111 is used to connect to an external feed pipe. The cross section of the wedge-shaped conduit 112 gradually decreases from the end connected to the threaded port to the end connected to the cyclone separator, and the side wall of the wedge-shaped conduit close to the cyclone separator is a curved wall 1121, and the curved wall fits the side wall of the cyclone separator. A movable pendant is provided at one end of the curved wall 1121 embedded in the cyclone separator, and the outlet size of the wedge-shaped conduit is expanded when the movable pendant is squeezed; because it is necessary to adapt to different incoming material costs, for materials containing more solid waste, it may be blocked at the gradually reduced wedge-shaped conduit, and the movable pendant provides such a temporarily enlarged input end to prevent blockage.

[0037] In this example, see Figure 3 The filter screen 21 is arranged between the water inlet 11 and the first water outlet pipe 22, and the filter screen is spherical with low sides and a raised center. Because the rising water flow itself is in a rotating state, if a flat grid is used, the pressure on the material is the greatest at the periphery, so the remaining solid waste is easy to be trapped at the edge of the flat grid, thereby affecting the overall rotation effect of the cyclone separator. However, a spherical design is adopted. When the material touches the edge, it is not easy to get stuck at the edge of the filter screen because the contact surface is inclined. Instead, it will slowly slow down and gather in the center of the cyclone. Due to the vortex effect, the solid matter in the center of the cyclone will be slowly squeezed by the water flow and gradually sink to the bottom. On the one hand, it prevents the garbage intercepted by the filter screen from having a rotating effect on the cyclone separator, and also allows the solid waste to gather in the center of the vortex and sink to the bottom, forming a virtuous cycle.

[0038] In this example, see Figure 4-Figure 5 The heating separation box 3 is a rectangular parallelepiped, and the four side walls thereof are attached with heating plates 31, and the heating plates are also attached with heat-insulating cotton cover plates 32. By heating the heating separation box, the oil stains are prevented from adhering to the side walls and the bottom shell, and the oil stains are ensured to float on the uppermost layer of the liquid.

[0039] In this embodiment, the heating separation box 3 is also provided with a partition plate 33, and a gap is provided between the upper end of the partition plate 33 and the top of the heating separation box; the partition plate 33 divides the heating separation box 3 into a first chamber 331 and a second chamber 332, the output end of the first outlet pipe 22 is placed at the bottom of the first chamber, the first end of the liquid level connecting pipe 7 is arranged at the bottom of the second chamber, and the second end of the liquid level connecting pipe is connected to the water outlet box; and the connecting chamber is connected to the second chamber; when the first chamber is full, the material overflows into the second chamber and then flows into the second chamber. Therefore, the liquid is first heated by sedimentation in the first chamber, and then overflows the partition plate and flows into the second chamber. After the second chamber is filled, it flows into the liquid level monitoring box. Since there is a partition device made of transparent material in the liquid level monitoring box, the removal of the oil layer can be manually controlled. When the liquid gradually rises in the connecting chamber, the oil layer overflows the partition device and flows into the oil storage chamber; the water is discharged from the water outlet tank.

[0040] In this example, see Figure 6 The liquid level connecting pipe 7 is provided with an input section 71, a horizontal flow section 72 and an output end 73 in sequence. The input section 71 extends into the bottom of the second cavity 332, and the horizontal flow section 72 is on the same horizontal plane as the bottom shell of the liquid level monitoring box 6; the output section extends into the water outlet tank; only when the liquid level monitoring box is set to be on the same horizontal plane as the horizontal flow section can the water flow be ensured to rise slowly instead of rising too fast. Then, a matching structure is to design the top of the heating separation box into a conical structure, and the top of the cone is connected to the liquid level monitoring box, so that the oil pollution can be concentrated in the liquid level monitoring box body.

[0041] In this embodiment, the output section 73 is threadedly connected to the horizontal section 72, and the output section rotates with the horizontal section as the center to adjust the horizontal height of the output section; the liquid level monitoring box and the water outlet box form a communicating vessel structure through the liquid level connecting pipe; wherein, the height of the separator is adjusted to change the liquid level of the liquid level monitoring box; since the horizontal position of the outlet of the output section limits the lifting height of the liquid in the liquid level monitoring box, for materials with different thicknesses of oily layers, two-way adjustment is performed: one is to adjust the height of the separator; the other is to adjust the horizontal position of the output section, thereby forming a good adaptability. Please refer to Figure 7As a specific solution, the partition device 61 includes a fixed plate 611 and a movable plate 612. The fixed plate 611 separates the liquid level monitoring box into an oil storage chamber and a connecting chamber, and isolates the oil storage chamber from the heating separation box; the fixed plate is provided with a fixed column, and the movable plate is provided with a slideway adapted to the fixed column; the height of the movable plate is adjusted to control the overflow of the oil layer. Specifically, an aeration pipe is provided inside the heating separation box, specifically at the position of the first chamber, to prevent solid impurities from condensing; and a transparent liquid level observation tube 34 is provided on the side walls of the first chamber and the second chamber; and the bottoms of the water outlet tank, the first chamber and the second chamber are connected to the main sewage pipe; and a dosing port 35 is also provided at the upper part of the heating separation box to meet the needs of chemical agent delivery and equipment maintenance.

[0042] Working process:

[0043] Materials mixed with solid impurities, sewage and oil are injected into the water inlet along the tangential direction of the cyclone separator; after the cyclone separator is turned on, the solid matter components sink and are discharged from the main sewage pipe, and the liquid mixed with sewage and oil is slowly lifted to the separation tank and filtered again by the spherical filter screen of the separation tank. The liquid overflowing the filter screen flows from the first outlet pipe into the first chamber of the heating separation box. At the same time, the aeration pipe and the heating plate are turned on to prevent the oil from condensing on the wall of the box. After the liquid in the first chamber is filled, it flows into the second chamber over the partition plate. After the second chamber is slowly filled, the liquid enters the connecting chamber of the liquid level monitoring box. At this time, the thickness of the oil layer can be observed, and the height of the fixed plate is adjusted according to the thickness of the oil layer. degree, and then rotate the output section to adjust the horizontal height to ensure that the communicating vessel formed by the communicating chamber and the water outlet tank can meet the requirements of oil removal and subsequent drainage; at the same time, since the top shape of the liquid level monitoring box is conical, in the process of continuously injected liquid separation, it is necessary to consider how the subsequent oil layer will float up after the oil layer is removed, because the water flow has filled the conical part, which will cause certain obstacles to the subsequent floating of oil pollution. Therefore, after draining the thick oil pollution layer, the horizontal position of the output section can be adjusted to discharge some water to make the oil pollution float up again, and then return to the appropriate horizontal position; repeating this process can achieve appropriate adjustment for mixed incoming materials with different impurity structures and oil pollution contents.

[0044] The technical effects of the present invention are:

[0045] 1. Use cyclone separator for slag removal. Water enters along the tangent line. It rotates at high speed under the pressure of the water pump. Under the action of centrifugal force, solid particles are thrown to the wall of the device and swirl down to the bottom of the cone. Clean water and oil flow into the middle separation tank of the equipment through the spherical filter above;

[0046] 2. Oil-water separation uses aeration and stirring to prevent the oil and residue from sticking together to form a hard shell;

[0047] 3. The oil-water separation equipment adopts external heating to prevent the heating device from sticking to the oil-containing suspended matter and being easily damaged;

[0048] 4. Oil-water separation adopts the method that both the oil outlet level and the water outlet level can be adjusted to adjust the oil outlet height;

[0049] 5. The oil-water separation structure is compact.

[0050] The above disclosures are only several specific embodiments of the present invention, but the present invention is not limited thereto, and any changes that can be conceived by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. An oil-water separator with an adjustable liquid level control device and multiple partitions, characterized in that: According to the material flow direction, the following are arranged in sequence: a cyclone separator, a separation tank, a heating separation box, and a water outlet box; the bottom end of the cyclone separator is connected to a main drain pipe, and the main drain pipe is used to discharge solid impurities; the top of the cyclone separator is connected to the separation tank, and the horizontal position of the filter screen of the separation tank is higher than the water inlet of the cyclone separator; the first water outlet pipe of the separation tank is connected to the heating separation box, and a liquid level monitoring box is arranged at the top of the heating separation box, and the liquid level monitoring box is provided with a height-adjustable partition device, and the partition device divides the liquid level monitoring box into an oil storage chamber and a connecting chamber, and the connecting chamber is connected to the heating separation box, and the oil storage chamber is isolated from the heating separation box; the heating separation box is provided with a liquid level connecting pipe connected to the water outlet tank; the water outlet tank is used to discharge sewage; Wherein, the cyclone separator is a cone with a larger top and a smaller bottom, and the horizontal height of the separation tank is higher than the liquid level monitoring box, and the main sewage pipe is also provided with a branch sewage pipe connected to the bottom of the heating separation box; the heating separation box is a rectangular parallelepiped, and heating plates are attached to its four side walls, and the heating plates are also attached with a heat-insulating cotton cover plate; the heating separation box is also provided with a partition plate, and a space is provided between the upper end of the partition plate and the top of the heating separation box; the partition plate divides the heating separation box into a first chamber and a second chamber, and the output end of the first water outlet pipe is placed at the bottom of the first chamber, the first end of the liquid level connecting pipe is arranged at the bottom of the second chamber, and the second end of the liquid level connecting pipe is connected to the water outlet tank; and the connecting chamber is connected to the second chamber; when the first chamber is full, the material overflows into the second chamber and then flows into the second chamber; The liquid level connecting pipe is provided with an input section, a horizontal flow section and an output section in sequence, the input section extends into the bottom of the second cavity, the horizontal flow section and the bottom shell of the liquid level monitoring box are on the same horizontal plane; the output section extends into the water outlet box; The output section is threadedly connected to the advection section, and the output section is rotated with the advection section as the center to adjust the horizontal height of the output section; the liquid level monitoring box and the water outlet box form a communicating vessel structure through the liquid level connecting pipe; wherein the height of the partition device is adjusted to change the liquid level of the liquid level monitoring box; The separating device comprises a fixed plate and a movable plate, wherein the fixed plate separates the liquid level monitoring box into an oil storage chamber and a connecting chamber, and isolates the oil storage chamber from the heating separation box; the fixed plate is provided with a fixed column, and the movable plate is provided with a slide groove adapted to the fixed column; the height of the movable plate is adjusted to control the overflow of the oil layer.

2. The oil-water separator with adjustable liquid level control device and multiple partitions according to claim 1, characterized in that: A water inlet is arranged at one end of the cyclone separator close to the filter screen. The water inlet is embedded in the inner cavity of the cyclone separator, and the water inlet direction of the water inlet is the tangent direction of the cyclone separator.

3. The oil-water separator with adjustable liquid level control device and multiple partitions according to claim 2, characterized in that: The water inlet component includes a threaded opening and a wedge-shaped conduit connected to one end of the threaded opening, the threaded opening is used to connect to an external feed pipe, the cross-section of the wedge-shaped conduit gradually decreases from one end connected to the threaded opening to one end connected to the cyclone separator, and a side wall of the wedge-shaped conduit close to the cyclone separator is a curved wall, and the curved wall fits with the side wall of the cyclone separator.

4. The oil-water separator with adjustable liquid level control device and multiple partitions according to claim 3, characterized in that: The curved wall is embedded in one end of the cyclone separator and is provided with a movable pendulum. When the movable pendulum is squeezed, the outlet size of the wedge-shaped conduit is expanded.

5. The oil-water separator with adjustable liquid level control device and multiple partitions according to claim 2, characterized in that: The filter screen is arranged between the water inlet member and the first water outlet pipe, and the filter screen is in a spherical shape with low sides and a raised middle.

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