Self-flushing filtering device

Abstract

The utility model discloses a self-flushing filtering device. The self-flushing filtering device comprises a box body, a water inlet pipe, a first water outlet pipe, a first flushing assembly and a first blow-off pipe, a partition plate is arranged in the box body to divide an inner cavity of the box body into a first area and a second area, a connecting channel is formed between the upper end of the partition plate and the top wall of the box body to communicate the first area with the second area, a filtering assembly is arranged in the first area and divides the first area into a water inlet area and an overflow area, and the water inlet area is located below the overflow area. The water inlet pipe is connected with the water inlet area. The first water outlet pipe is connected with the second area. The first flushing assembly is located above the filtering assembly and used for flushing the filtering assembly. And the first blow-off pipe is connected with the water inlet area. The self-flushing filtering device can filter impurities in water and self-clean the filtering assembly, frequent replacement of the filtering assembly is avoided, time and labor are saved, the working efficiency is improved, and the self-flushing filtering device can be used for filtering circulating cooling water in the chilling casting process of thin films such as low-temperature heat-sealing matt films and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of filtering devices, in particular to a self-flushing filtering device. Background Art

[0002] In the manufacturing process of films such as low-temperature heat-sealing matte films, the water containing impurities flowing out of the quench water tank needs to be filtered by a filtering device, and then cooled to a certain temperature by a cooling exchanger and then re-circulated back to the quench water tank to realize water circulation and control the temperature of the water tank. However, the filter cotton of the filtering device gradually becomes dirty after 1-2 days of use, the filtering effect weakens, the water inflow decreases, resulting in insufficient makeup water in the quench water tank, and it is necessary to stop the machine to replace the filter cotton, which is time-consuming, laborious and inefficient. Content of the Utility Model

[0003] The utility model aims to solve at least one of the technical problems in the related art to some extent. For this purpose, the utility model provides a self-flushing filtering device.

[0004] An embodiment of the utility model provides a self-flushing filtering device, which comprises:

[0005] A box body, wherein a partition is arranged inside the box body to divide the inner cavity of the box body into a first area and a second area, a connection channel is formed between the upper end of the partition and the top wall of the box body to communicate the first area and the second area, a filtering component is arranged in the first area, the filtering component divides the first area into a water inlet area and an overflow area, and the water inlet area is located below the overflow area;

[0006] A water inlet pipe, connected to the water inlet area;

[0007] A first water outlet pipe, connected to the second area;

[0008] A first flushing component, located above the filtering component and used for flushing the filtering component;

[0009] A first sewage pipe, connected to the water inlet area.

[0010] The self-flushing filtration device according to the embodiments of the present utility model has at least the following technical effects: During the cyclic operation, the first sewage discharge pipe is closed, and water enters the water inlet area through the water inlet pipe and gradually spreads upward to pass through the filtration component to reach the overflow area. The filtration component can filter impurities in the water, and the filtered water enters the second area through the connection channel in the overflow area and is discharged through the first water outlet pipe. When it is necessary to clean the filtration component, the first sewage discharge pipe is opened and the water inlet pipe is closed, and the first flushing component flushes the filtration component downward to clean the filtration component. The sewage flows downward into the water inlet area and is discharged through the first sewage discharge pipe. This self-flushing filtration device can filter impurities in the water and can self-clean the filtration component, avoiding the need to frequently replace the filtration component, saving time and effort, improving work efficiency, and can be used for filtering circulating cooling water in the film quenching and casting process of films such as low-temperature heat-sealing matte films.

[0011] According to some embodiments of the present utility model, the first flushing component includes a first water supply pipe and a plurality of first flushing pipes. The first water supply pipe is respectively connected to the plurality of first flushing pipes. The first flushing pipes are located above the filtration component, and the plurality of first flushing pipes are arranged at intervals. A plurality of first water outlet holes are provided on the lower side of the first flushing pipe.

[0012] According to some embodiments of the present utility model, a part of the first flushing pipe is located in the second area so that the first flushing pipe can flush the second area, and a second sewage discharge pipe is connected to the second area.

[0013] According to some embodiments of the present utility model, the filtration component includes filter cotton and two relatively arranged clamping components. One clamping component is fixedly installed on the inner side wall of the box body, and the other clamping component is fixedly installed on one side of the partition board. The two clamping components jointly clamp the filter cotton.

[0014] According to some embodiments of the present utility model, the clamping component includes a support block and a pressing block. The support block is used to support the filter cotton. The pressing block is located above the support block and presses the filter cotton tightly. The support block is fixedly installed on the box body, and the pressing block is detachably connected to the box body.

[0015] According to some embodiments of the present utility model, the self-flushing filtration device further includes a cylinder body. The water inlet end of the cylinder body is connected to the first water outlet pipe. A cylindrical filter net is provided in the cylinder body. The cylindrical filter net divides the inner cavity of the cylinder body into a filtration area and a water outlet area. The first water outlet pipe is connected to the filtration area, and a second water outlet pipe is connected to the water outlet area.

[0016] According to some embodiments of the present utility model, the self-flushing filtration device further includes a second flushing assembly and a third sewage discharge pipe. The second flushing assembly is used to flush the cylindrical filter net, and the third sewage discharge pipe is connected to the water outlet area.

[0017] According to some embodiments of the present utility model, the second flushing assembly includes a second water supply pipe and a plurality of second flushing pipes. The second water supply pipe is respectively connected to the plurality of second flushing pipes, and the second flushing pipes are inserted into the cylindrical filter net. A plurality of second water outlet holes are provided on a part of the second flushing pipes located inside the cylindrical filter net.

[0018] According to some embodiments of the present utility model, the self-flushing filtration device further includes a water pump and a heat exchanger. The water pump is respectively connected to the second water outlet pipe and the water inlet end of the heat exchanger, and the water outlet end of the heat exchanger is connected to the water inlet pipe.

[0019] According to some embodiments of the present utility model, the first sewage discharge pipe is connected to the bottom of the water inlet area.

[0020] Additional aspects and advantages of the present utility model will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present utility model. Description of the Drawings

[0021] The above and / or additional aspects and advantages of the present utility model will become apparent and be readily understood from the description of the embodiments in conjunction with the following drawings, wherein:

[0022] Figure 1 is a schematic structural diagram of the self-flushing filtration device according to some embodiments of the present utility model;

[0023] Figure 2 is a partial structural cross-sectional view of the self-flushing filtration device according to some embodiments of the present utility model;

[0024] Figure 3 is a partial structural three-dimensional cross-sectional view of the self-flushing filtration device according to some embodiments of the present utility model;

[0025] Figure 4 is a cross-sectional view of the cylinder according to some embodiments of the present utility model;

[0026] Figure 5 is a three-dimensional cross-sectional view of the cylinder according to some embodiments of the present utility model.

[0027] Reference Numerals in the Drawings:

[0028] Cabinet 100, partition 110, first area 120, water inlet area 121, overflow area 122, second area 130, connection channel 140, water inlet pipe 150, first water outlet pipe 160, first sewage pipe 170, second sewage pipe 180;

[0029] Filter assembly 200, filter cotton 210, clamping assembly 220, support block 221, pressing block 222;

[0030] First flushing assembly 300, first water supply pipe 310, first flushing pipe 320, first water outlet hole 321;

[0031] Cylinder body 400, cylindrical filter net 410, filtering area 420, water outlet area 430, second water outlet pipe 440, second flushing assembly 450, second water supply pipe 460, second flushing pipe 470, second water outlet hole 471, third sewage pipe 472, water pump 480, heat exchanger 490. Detailed implementation mode

[0032] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, in which the same or similar reference numerals indicate the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present invention, and should not be construed as a limitation of the present invention.

[0033] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as up, down, front, back, left, right, etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0034] In the description of the present invention, the meaning of several is one or more, the meaning of multiple is two or more, greater than, less than, exceeding, etc. are understood as not including the present number, above, below, within, etc. are understood as including the present number. If there is a description of first and second, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or the sequence relationship of the indicated technical features.

[0035] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific content of the technical solution.

[0036] The embodiments of the present invention will be further described below with reference to the drawings.

[0037] According to some embodiments of the present invention, with reference to Figures 1 to 2 , the self-flushing filtration device includes a box body 100, a water inlet pipe 150, a first water outlet pipe 160, a first flushing assembly 300, and a first sewage discharge pipe 170. A partition 110 is provided inside the box body 100 to divide the inner cavity of the box body 100 into a first area 120 and a second area 130, and the first area 120 is located on the left side of the second area 130. The front side of the partition 110 is attached to and fixedly connected to the front inner side wall of the box body 100, the rear side of the partition 110 is attached to and fixedly connected to the rear inner side wall of the box body 100, and a connection channel 140 is formed between the upper end of the partition 110 and the top wall of the box body 100 to communicate the first area 120 and the second area 130. A filtration assembly 200 is provided in the first area 120, and the filtration assembly 200 divides the first area 120 into a water inlet area 121 and an overflow area 122. The water inlet area 121 is located below the overflow area 122. The left, front, and rear sides of the filtration assembly 200 are attached to the inner side wall of the box body 100, and the right side of the filtration assembly 200 is attached to the left side wall of the partition 110. The water inlet pipe 150 is connected to the water inlet area 121. The first water outlet pipe 160 is connected to the second area 130. The first flushing assembly 300 is located above the filtration assembly 200 and is used to flush the filtration assembly 200. The first sewage discharge pipe 170 is connected to the water inlet area 121, and the first sewage discharge pipe 170 is connected to the bottom of the water inlet area 121.

[0038] During the circulating operation, the first sewage discharge pipe 170 is closed, water enters the water inlet area 121 through the water inlet pipe 150 and gradually spreads upward. The water spreads upward and then passes through the filtration assembly 200 to reach the overflow area 122. The filtration assembly 200 can filter impurities in the water, and the filtered water enters the second area 130 through the connection channel 140 from the overflow area 122, and then the water is discharged through the first water outlet pipe 160.

[0039] When it is necessary to clean the filtration assembly 200, the first sewage discharge pipe 170 is opened and the water inlet pipe 150 is closed. The first flushing assembly 300 flushes downward to clean the impurities on the filtration assembly 200. The impurities and water are mixed to form sewage and flow downward into the water inlet area 121, and finally the sewage is discharged through the first sewage discharge pipe 170.

[0040] The self-flushing filtration device can filter impurities in the water and can self-clean the filtration assembly 200, avoiding the need to frequently replace the filtration assembly 200, saving time and effort, improving work efficiency, and can be used for filtering circulating cooling water in the process of film quenching and casting of films such as low-temperature heat-sealing matte films.

[0041] According to some embodiments of the present invention, with reference to Figure 2 and Figure 3, the first flushing assembly 300 includes a first water supply pipe 310 and a plurality of first flushing pipes 320. The first water supply pipe 310 is respectively connected to the plurality of first flushing pipes 320. The first flushing pipes 320 are located above the filtering assembly 200 and extend in the left - right direction. The plurality of first flushing pipes 320 are arranged at intervals in the front - back direction. A plurality of first water outlet holes 321 are provided on the lower side of the first flushing pipe 320, and the plurality of first water outlet holes 321 are arranged at intervals in the left - right direction. The water inlet end of the first water supply pipe 310 is connected to a water source. Water is diverted from the first water supply pipe 310 into the plurality of first flushing pipes 320, and the water in the first flushing pipes 320 flushes out through the first water outlet holes 321 to clean the filtering assembly 200, so that the impurities on the filtering assembly 200 fall into the water inlet area 121.

[0042] According to some embodiments of the present invention, referring to Figure 2 and Figure 3 , a part of the first flushing pipe 320 is located in the second area 130 so that the first flushing pipe 320 can flush the second area 130. The second sewage pipe 180 is connected to the second area 130. The first flushing pipe 320 can flush the second area 130 while flushing the filtering assembly 200, thereby cleaning the entire box body 100 and ensuring that the inside of the box body 100 is clean.

[0043] According to some embodiments of the present invention, referring to Figure 2 and Figure 3 , the filtering assembly 200 includes a filter cotton 210 and two oppositely arranged clamping assemblies 220. One clamping assembly 220 is fixedly installed on the inner side wall of the box body 100, and the other clamping assembly 220 is fixedly installed on one side of the partition 110. The two clamping assemblies 220 jointly clamp the filter cotton 210. The clamping assembly 220 includes a support block 221 and a pressing block 222. The support block 221 is used to support the filter cotton 210, the pressing block 222 is located above the support block 221 and presses the filter cotton 210. The support block 221 is fixedly installed on the box body 100, and the pressing block 222 is detachably connected to the box body 100.

[0044] It can be understood that in the clamping assembly 220 on the left side, the support block 221 is fixedly connected to the left inner side wall of the box body 100. After the filter cotton 210 is placed on the support block 221, the pressing block 222 presses the filter cotton 210 and is relatively fixed to the left inner side wall of the box body 100 through bolts. In the clamping assembly 220 on the right side, the support block 221 is fixedly connected to the left side wall of the partition 110. After the filter cotton 210 is placed on the support block 221, the pressing block 222 presses the filter cotton 210 and is relatively fixed to the partition 110 through bolts.

[0045] According to some embodiments of the present invention, referring to Figure 1 , Figure 4 and Figure 5, the self-flushing filtration device further includes a cylinder body 400. The water inlet end of the cylinder body 400 is connected to the first water outlet pipe 160. A cylindrical filter net 410 is arranged inside the cylinder body 400. The cylindrical filter net 410 divides the inner cavity of the cylinder body 400 into a filtration area 420 and a water outlet area 430. The inner cavity of the cylindrical filter net 410 is the filtration area 420. The axial direction of the cylindrical filter net 410 is the left-right direction. The right end of the cylindrical filter net 410 is closed, and the opening of the cylindrical filter net 410 faces left. The water inlet end of the cylinder body 400 is located on the left side. The left end of the cylindrical filter net 410 covers the water inlet end of the cylinder body 400. The first water outlet pipe 160 is connected to the filtration area 420, and the second water outlet pipe 440 is connected to the water outlet area 430.

[0046] During the circulating operation, water enters the cylinder body 400 through the first water outlet pipe 160 to enter the filtration area 420. The water passes through the cylindrical filter net 410 for filtration. The filtered water enters the water outlet area 430, and the filtered water is discharged from the water outlet area 430 through the second water outlet pipe 440.

[0047] According to some embodiments of the present invention, referring to Figure 4 and Figure 5 , the self-flushing filtration device further includes a second flushing assembly 450 and a third sewage discharge pipe 472. The second flushing assembly 450 is used to flush the cylindrical filter net 410. The third sewage discharge pipe 472 is connected to the water outlet area 430. The second flushing assembly 450 includes a second water supply pipe 460 and a plurality of second flushing pipes 470. The plurality of second flushing pipes 470 are arranged at intervals in the left-right direction. The second flushing pipes 470 extend in the up-down direction. The second water supply pipe 460 is respectively connected to the plurality of second flushing pipes 470. The second flushing pipes 470 are inserted into the cylindrical filter net 410. A plurality of second water outlet holes 471 are provided on some of the second flushing pipes 470 located inside the cylindrical filter net 410.

[0048] When it is necessary to clean the cylindrical filter net 410, the first water outlet pipe 160 and the second water outlet pipe 440 are closed, the third sewage discharge pipe 472 is opened, the water inlet end of the second water supply pipe 460 is connected to a water source, water is diverted into the plurality of second flushing pipes 470 through the second water supply pipe 460, and the water in the second flushing pipes 470 flushes out through the second water outlet holes 471 to clean the cylindrical filter net 410, so that the impurities on the cylindrical filter net 410 fall into the water outlet area 430. Subsequently, the sewage formed by the mixture of water and impurities is discharged through the third sewage discharge pipe 472.

[0049] According to some embodiments of the present invention, referring to Figure 1, the self-flushing filtration device further includes a water pump 480 and a heat exchanger 490. The water pump 480 is respectively connected to the second water outlet pipe 440 and the water inlet end of the heat exchanger 490. The water outlet end of the heat exchanger 490 is connected to the water inlet pipe 150. The water pump 480 pumps the water in the second water outlet pipe 440 into the heat exchanger 490 for heat exchange.

[0050] In the description of this specification, the description referring to the term "some embodiments" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expression of the above term does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0051] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the claims and their equivalents.

Claims

1. A self-flushing filtration device, characterized in that, Comprising: A box body (100), inside which a partition board (110) is provided to divide the inner cavity of the box body (100) into a first area (120) and a second area (130). A connection channel (140) is formed between the upper end of the partition board (110) and the top wall of the box body (100) to communicate the first area (120) and the second area (130). A filtering component (200) is provided in the first area (120), and the filtering component (200) divides the first area (120) into a water inlet area (121) and an overflow area (122), and the water inlet area (121) is located below the overflow area (122); A water inlet pipe (150), connected to the water inlet area (121); A first water outlet pipe (160), connected to the second area (130); A first flushing component (300), located above the filtering component (200) and used for flushing the filtering component (200); A first sewage discharge pipe (170), connected to the water inlet area (121).

2. The self-flushing filtration device according to claim 1, wherein The first flushing component (300) includes a first water supply pipe (310) and a plurality of first flushing pipes (320). The first water supply pipe (310) is respectively connected to the plurality of first flushing pipes (320). The first flushing pipes (320) are located above the filtering component (200), and the plurality of first flushing pipes (320) are arranged at intervals. A plurality of first water outlet holes (321) are provided on the lower side of the first flushing pipe (320).

3. The self-flushing filtration device according to claim 2, wherein A part of the first flushing pipe (320) is located in the second area (130) so that the first flushing pipe (320) can flush the second area (130), and a second sewage discharge pipe (180) is connected to the second area (130).

4. The self-flushing filtration device according to claim 1, wherein The filtering component (200) includes a filter cotton (210) and two relatively arranged clamping components (220). One clamping component (220) is fixedly installed on the inner side wall of the box body (100), and the other clamping component (220) is fixedly installed on one side of the partition board (110). The two clamping components (220) jointly clamp the filter cotton (210).

5. The self-flushing filtration device according to claim 4, wherein, The clamping component (220) includes a support block (221) and a pressing block (222). The support block (221) is used to support the filter cotton (210), and the pressing block (222) is located above the support block (221) and presses the filter cotton (210). The support block (221) is fixedly installed on the box body (100), and the pressing block (222) is detachably connected to the box body (100).

6. The self-flushing filtration device according to claim 1, wherein, The self-flushing filtration device further includes a cylinder body (400). The water inlet end of the cylinder body (400) is connected to the first water outlet pipe (160). A cylindrical filter screen (410) is provided inside the cylinder body (400). The cylindrical filter screen (410) divides the inner cavity of the cylinder body (400) into a filtration area (420) and a water outlet area (430). The first water outlet pipe (160) is connected to the filtration area (420), and a second water outlet pipe (440) is connected to the water outlet area (430).

7. The self-flushing filtration device according to claim 6, wherein The self-flushing filtration device further includes a second flushing assembly (450) and a third sewage discharge pipe (472). The second flushing assembly (450) is used to flush the cylindrical filter screen (410). The third sewage discharge pipe (472) is connected to the water outlet area (430).

8. The self-flushing filtration device according to claim 7, characterized in that, The second flushing assembly (450) includes a second water supply pipe (460) and a plurality of second flushing pipes (470). The second water supply pipe (460) is respectively connected to the plurality of second flushing pipes (470). The second flushing pipes (470) are inserted into the cylindrical filter screen (410). A plurality of second water outlet holes (471) are provided on a part of the second flushing pipes (470) located inside the cylindrical filter screen (410).

9. The self-flushing filtration device according to claim 6, wherein The self-flushing filtration device further includes a water pump (480) and a heat exchanger (490). The water pump (480) is respectively connected to the second water outlet pipe (440) and the water inlet end of the heat exchanger (490). The water outlet end of the heat exchanger (490) is connected to the water inlet pipe (150).

10. The self-flushing filtration device according to claim 1, wherein, The first sewage discharge pipe (170) is connected to the bottom of the water inlet area (121).

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