Liquid storage device for impurity removal

Abstract

The application discloses a liquid storage device for impurity removal, and relates to the technical field of carbon dioxide capture and transportation. The liquid storage device for impurity removal comprises a box body, a flow-through channel in the box body, and a plurality of filter units which are arranged in the flow-through channel at intervals. The filter unit comprises a filter screen and a filter box. The filter screen is arranged in the flow-through channel in an inclined manner, and the top and two sides of the filter screen are connected with the side wall of the box body respectively. The bottom of the filter screen and the side wall of the box body limit a flow channel. The mesh diameters of the plurality of filter screens decrease in turn from top to bottom. The filter box is arranged in the flow channel corresponding to the filter screen and is used for filtering impurities in the liquid flowing through the flow channel. The liquid storage device for impurity removal can perform graded filtration on the impurities in the liquid, collect the filtered impurities, avoid the blockage of the filter screen by the impurities, prolong the service life of the filter screen, and ensure the filtration efficiency of the impurities in the liquid.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of carbon dioxide capture, in particular to a liquid storage device for impurity removal. BACKGROUND

[0002] In the carbon capture and storage technology, the carbon capture system often uses absorbent to absorb and release carbon dioxide, that is, the lean absorbent entering from the top of the absorption tower reacts with the flue gas entering from the lower part of the absorption tower, carbon dioxide is dissolved in the absorbent, and the rich liquid after absorbing carbon dioxide is sent to the top of the regeneration tower from the circulation pipeline, reacts with the rising steam in the regeneration tower, desorbs carbon dioxide, and obtains lean liquid that can absorb carbon dioxide again. The lean liquid after regeneration reaches the bottom of the regeneration tower and reaches the absorption tower through the reheater and the circulation pipeline.

[0003] However, the absorbent will crystallize into large particle impurities after long-term circulation, and the large particle impurities will flow in the solution circulation system along the circulation pipeline, and will be attached or precipitated in the circulation pipeline and various devices, thereby causing the packing layer, pipeline, liquid distributor and other components in the carbon capture system to be blocked, affecting the normal operation of the system. SUMMARY

[0004] The present application aims to at least solve one of the technical problems in the related art to some extent.

[0005] To this end, the embodiment of the present application provides a liquid storage device for impurity removal, which can perform fractional filtration on impurities in the liquid and collect the filtered impurities, thereby avoiding the blockage of the filter screen by the impurities, prolonging the service life of the filter screen and ensuring the filtration efficiency of the impurities in the liquid.

[0006] The liquid storage device for impurity removal of the embodiment of the present application comprises:

[0007] a box body, the box body is provided with a flow passage extending in the up-down direction and passing through the liquid, and the cross section of the flow passage is rectangular;

[0008] a plurality of filter units, the plurality of filter units are arranged in the flow passage in the up-down direction, the filter unit comprises a filter screen and a filter box, the filter screen is arranged in the flow passage in an inclined manner, the top and both sides of the filter screen are connected with the side wall of the box body respectively, and a set distance is provided between the bottom of the filter screen and the corresponding side wall of the box body to limit the outflow channel, the mesh diameters of the plurality of filter screens decrease in turn from top to bottom, the filter box is arranged in the flow channel corresponding to the filter screen, the top of the filter box is provided with an opening, and the filter box is provided with at least one filter surface, and the filter box is used for filtering the impurities in the liquid flowing through the flow channel.

[0009] The liquid storage device for impurity removal can perform graded filtration on impurities in the liquid, and collect the filtered impurities, thereby avoiding the blockage of the filter screen by the impurities, prolonging the service life of the filter screen, and ensuring the filtration efficiency of the impurities in the liquid.

[0010] In some embodiments, the baffle is arranged in one-to-one correspondence with the filter box, and the baffle is movably arranged in the box. The baffle has a closed position, in which the baffle covers the filter box to block the flow channel. An openable and closable taking and placing window is arranged on the box corresponding to the filter box, and the filter box is movably arranged in the box.

[0011] In the embodiment, the size of the opened flow channel can be adjusted by moving the position of the baffle, and the flow channel can be closed. When the impurities collected in the filter box reach a certain amount and need to be cleaned, the baffle is moved to the closed position, the flow channel is blocked, and when the liquid level in the box is lower than the position height corresponding to the filter box, the taking and placing window can be opened, the corresponding filter box can be taken out, and the filter box can be replaced or cleaned, without affecting the filtration operation of the filter screen on the liquid.

[0012] In some embodiments, the baffle is arranged on the side wall of the box corresponding to the baffle. The side of the baffle close to the baffle is provided with a sealing gasket. In the closed position, the baffle is tightly attached to the lower side of the baffle.

[0013] In the embodiment, the baffle can shield the position where the side wall of the baffle contacts the side wall of the box, avoid the liquid passing through the gap between the baffle and the inner wall of the box, ensure the sealing property between the baffle and the baffle, and avoid the liquid leaking through the baffle position.

[0014] In some embodiments, the baffle is arranged in an inclined manner and the position of the baffle along the inclined direction is adjustable. The inclined direction of the baffle is opposite to the inclined direction of the filter screen. In the closed position, the top of the baffle abuts against the side wall of the box.

[0015] In some embodiments, the filter screen is provided with a rectangular hole, and the fixing frame is arranged on the filter screen corresponding to the rectangular hole. The inner side of the fixing frame is provided with a sealing strip in the circumferential direction. The baffle is arranged in the fixing frame and is sealingly connected to the fixing frame through the sealing strip.

[0016] In the embodiment, the fixing frame can provide support and limiting for the movement of the baffle, and seal the position where the filter screen is connected to the baffle through the fixing frame, thereby avoiding the liquid passing through the gap between the baffle and the filter screen.

[0017] In some embodiments, the baffle is arranged to swing on the side wall of the box, and a driving assembly is arranged between the baffle and the box, the driving assembly being configured to drive the baffle to rotate around a position connected to the box, and in the closed position, the bottom of the baffle abuts against the filter screen to block the flow channel.

[0018] In some embodiments, a support frame is arranged, the support frame comprising two guide rails arranged correspondingly and having an L-shaped cross section, and the filter box is arranged to slide between the two guide rails.

[0019] In the present embodiment, the filter box is supported by the support frame, and the movement direction of the filter box is constrained by the two guide rails, so that the filter box is conveniently installed.

[0020] In some embodiments, a flow guide cylinder is arranged in the flow channel, the flow guide cylinder has a rectangular cross section, and the length and width of the cross section of the flow guide cylinder decrease from top to bottom, and a driving piece is arranged on the guide rail and is adjustable in position in the up-down direction, the driving piece being configured to support the top of the filter box against the side wall of the flow guide cylinder.

[0021] In the present embodiment, the height of the driving piece is adjusted to adjust the height of the filter box, so that the bottom end of the flow guide cylinder extends into the filter box, and the top opening of the filter box is adapted to and sealed against the side of the flow guide cylinder, thereby ensuring the filtering effect of impurities in the liquid.

[0022] In some embodiments, a liquid level display meter is arranged on the box, or an observation window for displaying the liquid level height in the box is arranged on the box.

[0023] In some embodiments, in two adjacent filter units, the inclination directions of the filter screens are opposite to each other so that the corresponding extension surfaces are arranged alternately, and / or the filter unit comprises a vibration motor arranged correspondingly to the filter screen. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 FIG. 1 is a structural schematic view of a liquid storage device for impurity removal according to an embodiment of the present application.

[0025] Figure 2 FIG. 2 is a connection schematic view of a filter box and a baffle in a liquid storage device for impurity removal according to an embodiment of the present application.

[0026] Figure 3 FIG. 3 is a structural schematic view of a liquid storage device for impurity removal according to an embodiment of the present application.

[0027] Figure 4 FIG. 4 is a connection schematic view of a filter box and a baffle in a liquid storage device for impurity removal according to another embodiment of the present application.

[0028] Reference signs:

[0029] Box 1; flow passage 11; liquid discharge pipe 12; taking and placing window 13;

[0030] Filtering unit 2; filtering screen 21; filtering box 22; vibration motor 23;

[0031] Baffle 3;

[0032] Baffle 4; first connecting piece 41; second connecting piece 42;

[0033] Hydraulic electric push rod 5;

[0034] Fixing frame 6;

[0035] Driving assembly 7; first magnetic plate 71; second magnetic plate 72;

[0036] Support frame 8; guide rail 81; driving piece 82; guide rod 83; top supporting spring 84;

[0037] Flow guide cylinder 9. DETAILED DESCRIPTION

[0038] The embodiments of the present application are described in detail below with reference to the accompanying drawings. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application.

[0039] As shown in Figure 1 , Figure 2 , Figure 3 and Figure 4 , the liquid storage device for impurity removal of the embodiments of the present application comprises a box 1 and a plurality of filtering units 2, the box 1 is rectangular, and the box 1 is provided with a flow passage 11 extending in the up-down direction and for liquid to pass through, the cross section of the flow passage 11 is also rectangular, the plurality of filtering units 2 are provided in the flow passage 11 in the up-down direction at intervals, the filtering unit 2 comprises a filtering screen 21 and a filtering box 22, the filtering screen 21 is provided in the flow passage 11 in an inclined manner, and the top and both sides of the filtering screen 21 are connected with the side walls of the box 1 respectively, there is a set distance between the bottom of the filtering screen 21 and the corresponding side wall of the box 1 to limit the outflow channel, the mesh diameters of the plurality of filtering screens 21 decrease in turn in the direction from top to bottom, the filtering box 22 is provided in the flow channel corresponding to the filtering screen 21, the top of the filtering box 22 is provided with an opening, and the filtering box 22 is provided with at least one filtering surface, the filtering box 22 is used for filtering the impurities in the liquid flowing through the flow channel.

[0040] The liquid enters the flow channel 11 from the top of the box body 1 in use, the filter screen 21 at the top layer performs preliminary filtration on the impurities, the inclined arrangement of the filter screen 21 can increase the area of the single filter screen 21 under the condition that the sectional area of the flow channel 11 is constant, and the liquid entering the flow channel 11 at the same time reaches the surface of the filter screen 21 after different falling heights, so that the amount of the liquid entering the flow channel 11 per unit time is prevented from being greater than the amount of the liquid that can pass through the filter screen 21 per unit time to cause the accumulated liquid to flood the top surface of the entire filter screen 21, the flow velocity of the liquid at the position of the filter screen 21 is ensured, and the inclined filter screen 21 can move the impurities that cannot pass through the filter screen 21 to the filter box 22 along the inclined direction of the filter screen 21, the impurities are collected by the filter box 22, the effective filtration area of the filter screen 21 and the filtration efficiency on the liquid are further ensured, the plurality of filter screens 21 at the lower positions successively perform re-filtration on the liquid, and the diameters of the filter holes of the plurality of filter screens 21 successively decrease to reduce the impurity filtration amount of each filter screen 21 and ensure that each filter screen 21 can operate at the same time.

[0041] The liquid storage device for removing impurities can perform graded filtration on the impurities in the liquid, collect the filtered impurities, avoid the blockage of the filter screen 21 by the impurities, prolong the service life of the filter screen 21, and ensure the filtration efficiency on the impurities in the liquid.

[0042] It should be noted that the filter box 22 is provided with at least one filter surface, that is, the side surface of the filter box 22 is provided with a filter surface, the circumferential side of the filter box 22 is provided with one, two, three or four filter surfaces, or the bottom surface of the filter box 22 is provided with a filter surface, or the side surface and the bottom surface of the filter box 22 are both provided with a filter surface, and the circumferential side of the filter box 22 is provided with one, two, three or four filter surfaces.

[0043] Optionally, as shown in Figure 1 the bottom of the box body 1 is provided with a liquid discharge pipeline 12, the connection height of the liquid discharge pipeline 12 and the box body 1 is not higher than the connection height of the filter screen 21 at the bottom and the box body 1, a pump body is connected to the liquid discharge pipeline 12, and the pump body is used to discharge the filtered liquid in the box body 1 through the liquid discharge pipeline 12.

[0044] Optionally, the top of the box body 1 is provided with a liquid inlet pipe for the liquid to enter the box body 1, or the flow channel 11 penetrates through the top of the box body 1, the box body 1 is arranged at the bottom of an absorption tower, and the flow channel 11 is in communication with the inner cavity of the absorption tower.

[0045] In some embodiments, as shown in Figure 1 , Figure 2 and Figure 4As shown, the filter box 22 is movably arranged in the box 1, and the box 1 is provided with a baffle 3 corresponding to the filter box 22. The baffle 3 is movably arranged in the box 1. The baffle 3 has a closed position. In the closed position, the baffle 3 covers the filter box 22 to block the flow channel. The box 1 is provided with an openable and closable taking and placing window 13 corresponding to the filter box 22.

[0046] The baffle 3 is movably arranged in the box 1. By moving the position of the baffle 3, the size of the opened flow channel can be adjusted, and the flow channel can be closed. When the impurities collected in the filter box 22 reach a certain amount and need to be cleaned, the baffle 3 can be moved to the closed position. At this time, the baffle 3 blocks the flow channel, and the liquid continues to fall through the filter screen 21. The impurities filtered by the filter screen 21 are collected above the baffle 3, avoiding the impurities and the liquid from entering the filter box 22 through the flow channel. When the liquid level in the box 1 is lower than the position height corresponding to the filter box 22, the taking and placing window 13 can be opened, the corresponding filter box 22 can be taken out, and the filter box 22 can be replaced or cleaned, without affecting the filtering operation of the filter screen 21 on the liquid.

[0047] Optionally, as shown in Figure 2 and Figure 4 , the taking and placing window 13 is rotatably arranged on the outer side wall of the box 1, and the taking and placing window 13 is provided with a sealing gasket or a sealing ring to ensure the sealing between the taking and placing window 13 and the box 1 when the taking and placing window 13 is closed, avoiding the liquid from leaking out of the position of the taking and placing window 13.

[0048] In some embodiments, as shown in Figure 1 , Figure 2 and Figure 4 , the box 1 is provided with a baffle piece 4 corresponding to the baffle 3. The baffle piece 4 is arranged on the side wall of the box 1. The side of the baffle piece 4 close to the baffle 3 is provided with a sealing gasket. In the closed position, the baffle 3 is tightly arranged below the baffle piece 4. The baffle piece 4 can shield the position where the side wall of the baffle 3 contacts the side wall of the box 1, avoiding the liquid from passing through the gap between the baffle 3 and the inner wall of the box 1. Meanwhile, the bottom of the baffle piece 4 is provided with a sealing gasket, further realizing the sealing between the baffle 3 and the baffle piece 4. When the taking and placing window 13 is opened, the liquid can be prevented from leaking out of the position of the baffle 3.

[0049] Optionally, the baffle piece 4 is arranged corresponding to the baffle 3, and two baffle pieces 4 are arranged above each baffle 3.

[0050] In some embodiments, as shown in Figure 2 , the baffle 3 is arranged in an inclined manner and the position along the inclined direction is adjustable. The inclined direction of the baffle 3 is opposite to the inclined direction of the filter screen 21. In the closed position, the top of the baffle 3 abuts against the side wall of the box 1. The baffle 3 is arranged in an inclined manner to form a V-shaped collection groove with the filter screen 21, reducing the liquid on the side of the baffle 3 contacting the side wall of the box 1, ensuring the sealing of the baffle 3 in the closed position, and facilitating the taking out of the filter box 22.

[0051] It should be noted that the top of the baffle 3 refers to the higher side of the baffle 3 in the up-down direction.

[0052] Optionally, the top of the baffle 4 is connected with a first connecting piece 41, one side of the first connecting piece 41 is connected with the side wall of the box 1, and the bottom of the connecting piece is also provided with a sealing gasket, so as to ensure the sealing connection between the top of the baffle 3 and the side wall of the box 1 when the baffle 3 is in the closed position.

[0053] Optionally, the inclination angle of the baffle 3 is 5° to 30°.

[0054] Optionally, as shown in Figure 2 , the box 1 is provided with a hydraulic electric push rod 5 corresponding to the baffle 3, the hydraulic electric push rod 5 is arranged along the inclination direction of the baffle 3, and the extension rod of the hydraulic electric push rod 5 penetrates through the side wall of the box 1 and is fixedly connected with the baffle 3, and the position of the baffle 3 is adjusted by the retraction operation of the hydraulic electric push rod 5.

[0055] In some embodiments, as shown in Figure 2 , a fixed frame 6 is included, the filter screen 21 is provided with a rectangular hole, the fixed frame 6 is arranged on the filter screen 21 corresponding to the rectangular hole, the inner side of the fixed frame 6 is provided with a sealing strip in the circumferential direction, the baffle 3 penetrates through the fixed frame 6 and is sealingly connected with the fixed frame 6 through the sealing strip, the fixed frame 6 can provide support and limit for the movement of the baffle 3, and at the same time, the position where the filter screen 21 and the baffle 3 are connected is sealed through the fixed frame 6, so as to avoid that the liquid carries away impurities through the gap between the baffle 3 and the filter screen 21.

[0056] Optionally, the fixed frame 6 is fixedly connected with the box 1.

[0057] In some embodiments, as shown in Figure 4 , the baffle 3 is arranged to swing on the side wall of the box 1, and a driving assembly 7 is arranged between the baffle 3 and the box 1, the driving assembly 7 is used to drive the baffle 3 to rotate around the position connected with the box 1, and in the closed position, the bottom of the baffle 3 abuts against the filter screen 21 to block the flow channel.

[0058] The top of the baffle 3 is rotatably connected with the side wall of the box 1, by adjusting the rotation angle of the baffle 3, the position where the bottom of the baffle 3 is located can be adjusted, in the closed position of the baffle 3, the bottom of the baffle 3 abuts against the filter screen 21, the baffle 3 blocks the falling liquid and the impurities in the liquid, the liquid falls through the filter screen 21, and the impurities that cannot pass through the filter screen 21 are gathered at the position where the baffle 3 abuts against the filter screen 21, when the filter box 22 is replaced or cleaned, the taking and placing window 13 is closed, and the baffle 3 is adjusted to reset, so that the impurities enter the filter box 22.

[0059] Optionally, as shown in Figure 4As shown, the driving assembly 7 comprises a first magnetic plate 71 and a second magnetic plate 72, the first magnetic plate 71 is arranged on one side of the baffle 3 close to the side wall of the box 1, and the second magnetic plate 72 is arranged on the side wall of the box 1, the sides of the first magnetic plate 71 and the second magnetic plate 72 are magnetically identical, the second magnetic plate 72 is an electromagnetic plate and the magnetism is adjustable, according to the same repulsion principle of the magnet, the magnetism of the second magnetic plate 72 is increased to drive the first magnetic plate 71 to move away from the second magnetic plate 72 to realize the rotation angle of the baffle 3, so as to adjust the opening angle of the baffle 3 conveniently and reliably.

[0060] Optionally, the driving assembly 7 is a hydraulic push rod, two ends of the hydraulic push rod are respectively connected with the side wall of the box 1 and the baffle 3, the baffle 3 is driven to rotate through the extension and retraction operation of the hydraulic push rod, and then the rotation angle of the baffle 3 is adjusted.

[0061] Optionally, as shown in the drawings, Figure 4 The top and bottom of the baffle 4 are connected with the second connecting piece 42, one side of one of the second connecting pieces 42 is connected with the side wall of the box 1, and one side of the other second connecting piece 42 is connected with the filter screen 21, and the bottom of the second connecting piece 42 is also provided with a sealing gasket, so as to ensure the sealing connection between the top of the baffle 3 and the side wall of the box 1 and between the baffle 3 and the filter screen 21 when the baffle 3 is in the closed position.

[0062] In some embodiments, as shown in the drawings, Figure 3 The support frame 8 comprises two guide rails 81 which are correspondingly arranged and have an L-shaped cross section, and the filter box 22 is slidably arranged between the two guide rails 81, the filter box 22 is supported by the support frame 8, and the movement direction of the filter box 22 is constrained by the two guide rails 81, so that the filter box 22 is conveniently installed.

[0063] Optionally, the support frame 8 comprises a connecting plate connecting the two guide rails 81, and the connecting plate is arranged at the end of the guide rail 81 away from the side wall of the box 1.

[0064] In some embodiments, as shown in the drawings, Figure 1 , Figure 2 and Figure 4 The guide cylinder 9 is arranged in the flow channel, the cross section of the guide cylinder 9 is rectangular, the length and width dimensions of the cross section of the guide cylinder 9 decrease in the direction from top to bottom, the driving piece 82 is arranged on the guide rail 81 and is adjustable in the up-down direction, and the driving piece 82 is used to support the top of the filter box 22 to tightly abut against the side wall of the guide cylinder 9.

[0065] When the filter box 22 is installed, the height of the driving piece 82 is adjusted, the filter box 22 is placed on the driving piece 82, the height of the driving piece 82 relative to the guide rail 81 is adjusted, the driving piece 82 pushes the filter box 22 to move so that the bottom end of the flow guide cylinder 9 extends into the filter box 22, and the top opening of the filter box 22 is in abutment with the side surface of the flow guide cylinder 9 to form a continuous seal, so as to ensure the filtration of impurities in the liquid.

[0066] Optionally, as shown in Figure 3 , the guide rail 81 includes a horizontal plate segment and a vertical plate segment, the driving piece 82 is fixedly provided with a guide rod 83, the guide rod 83 slides through the horizontal plate segment, a top supporting spring 84 is sleeved on the guide rod 83, and the two ends of the top supporting spring 84 are fixedly connected with the driving piece 82 and the horizontal plate segment, respectively, and the side of the guide rod 83 penetrating through the horizontal plate segment is provided with a plug, which is in stop cooperation with the horizontal plate segment.

[0067] Optionally, the top of the filter box 22 is provided with a sealing gasket.

[0068] Optionally, the flow guide cylinder 9 is a conical cylinder, and the top of the flow guide cylinder 9 is fixedly and sealingly connected with the side wall of the box body 1 and the bottom of the filter screen 21.

[0069] In some embodiments, the box body 1 is provided with a liquid level display meter, and the liquid level height in the box body 1 is judged through the liquid level display meter to determine the timing of replacing or cleaning the filter box 22.

[0070] In some embodiments, the box body 1 is provided with an observation window for displaying the liquid level height in the box body 1, the filtration efficiency of each filter screen 21 can be observed through the observation window, so as to avoid that a single filter screen 21 is blocked and the filtration of the whole device is affected, and the liquid level height in the box body 1 can be determined through the observation window, and then the timing of replacing or cleaning each filter box 22 is determined.

[0071] In some embodiments, in the two adjacent filter units 2, the inclination directions of the filter screens 21 are opposite to each other, so that the corresponding extension surfaces are staggered, the liquid falling after being filtered by the upper filter screen 21 will pass through different falling heights to reach the surface of the lower filter screen 21, and when the amount of liquid entering the flow passage 11 per unit time is greater than the amount of liquid that can pass through the filter screen 21 per unit time, the liquid will be stored at the position of the filter box 22, so that the liquid filtered by the filter box 22 is filtered at the top of the next filter screen 21, and the filtration efficiency of the liquid is ensured.

[0072] In some embodiments, as shown in Figure 1 , Figure 2 and Figure 4As shown, the filter unit 2 comprises a vibration motor 23 arranged corresponding to the filter screen 21, when the liquid passes through the filter screen 21, the impurities clogging the filter screen 21 can be moved relative to the filter screen 21 by the vibration of the vibration motor 23, so as to facilitate the impurities to fall along the filter screen 21 into the filter box 22, avoiding the impurities from clogging the filter screen 21.

[0073] In the description of the present application, it needs to be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0074] In addition, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0075] In the present application, unless otherwise specifically defined and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected or in communication with each other; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication or interaction relationship of two elements, unless otherwise specifically limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0076] In the present application, unless otherwise specifically defined and limited, the first feature "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature "above", "over" and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "under" and "under" the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0077] In the description of the specification, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are contained in at least one embodiment or example of the present application. In the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any suitable manner in any one or more embodiments or examples. In addition, the person skilled in the art can combine and combine the different embodiments or examples described in the specification and the features of the different embodiments or examples without contradiction.

[0078] Although the embodiments of the present application have been shown and described above, it is understood that the above-described embodiments are exemplary and are not to be construed as limiting the present application, and those skilled in the art can make changes, modifications, replacements and variations to the above-described embodiments within the scope of the present application.

Claims

1. A liquid storage device for impurity removal, characterized by, The utility model provides a filter device, comprising: a box, which is internally provided with a flow channel extending in the up-down direction and through which liquid passes, the cross section of the flow channel being rectangular; a plurality of filter units, which are spaced apart in the up-down direction in the flow channel, the filter unit comprising a filter screen and a filter box, the filter screen being obliquely arranged in the flow channel, the top and two sides of the filter screen being respectively connected with the side wall of the box, and a set distance being present between the bottom of the filter screen and the corresponding side wall of the box to limit an outflow channel, the mesh diameters of the plurality of filter screens successively decreasing in the direction from top to bottom, the filter box being arranged in the flow channel corresponding to the filter screen, the top of the filter box being provided with an opening, and the filter box being provided with at least one filter surface, the filter box being used for filtering impurities in the liquid flowing through the flow channel; a baffle, which is arranged corresponding to the filter box, the baffle being movably arranged in the box, the baffle having a closed position, in which the baffle covers the filter box to block the flow channel, the box being provided with an openable and closable taking and placing window corresponding to the filter box, and the filter box being movably arranged in the box; the baffle being swingably arranged in the side wall of the box, a driving assembly being arranged between the baffle and the box, the driving assembly being used for driving the baffle to rotate about the position connected with the box, in the closed position, the bottom of the baffle abutting against the filter screen to block the flow channel.

2. The liquid storage device for impurity removal according to claim 1, wherein a stopper, which is arranged in the side wall of the box corresponding to the baffle, the side of the stopper close to the baffle being provided with a sealing gasket, in the closed position, the baffle closely abutting below the stopper.

3. The liquid storage device for impurity removal according to claim 2, wherein the baffle being obliquely arranged and the position of the baffle being adjustable in the oblique direction, the oblique direction of the baffle being opposite to the oblique direction of the filter screen, in the closed position, the top of the baffle abutting against the side wall of the box.

4. The liquid storage device for impurity removal according to claim 3, wherein a fixing frame, the filter screen being provided with a rectangular hole, the fixing frame being arranged in the filter screen corresponding to the rectangular hole, the inner side of the fixing frame being provided with a sealing strip in the circumferential direction, the baffle being arranged in the fixing frame and being sealingly connected with the fixing frame through the sealing strip.

5. The liquid storage device for impurity removal according to claim 1, wherein a support frame, the support frame comprising two guide rails arranged corresponding to each other and having an L-shaped cross section, the filter box being slidably arranged between the two guide rails.

6. The liquid storage device for impurity removal according to claim 5, wherein a flow guide cylinder, which is arranged in the flow channel, the cross section of the flow guide cylinder being rectangular, the length and width dimensions of the cross section of the flow guide cylinder decreasing in the direction from top to bottom, the guide rail being provided with a driving piece adjustable in the up-down direction, the driving piece being used for supporting the top of the filter box to closely abut against the side wall of the flow guide cylinder.

7. The liquid storage device for impurity removal according to claim 1, wherein the box being provided with a liquid level display meter, or the box being provided with an observation window for displaying the liquid level height in the box.

8. The reservoir for removing impurities according to any one of claims 1 to 7, wherein in the two adjacent filter units, the oblique directions of the filter screens are opposite to each other to make the corresponding extension surfaces staggered, and / or the filter unit comprising a vibration motor, the vibration motor being arranged corresponding to the filter screen.

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