Filtering device

Abstract

The utility model provides a filtering device. In the filtering device, the tank body is divided into the first tank, the second tank and the third tank by using the filter screen structure and the overflow plate, so that liquid is introduced into the first tank and can be filtered by the filter screen structure to enter the second tank, and meanwhile, the third tank is also separated, so that the liquid can be filtered by the overflow plate. Therefore, when the liquid level of the liquid introduced into the first tank is higher, the liquid can overflow to the third tank, so that the problem that excessive liquid overflows from the tank body can be avoided. Moreover, the filter screen structure of the filter device is detachably mounted on the tank body, so that the filter screen structure can be detached to be independently cleaned, the cleaning difficulty of the filter screen structure is reduced, the cleaning effect is improved, the service life of the filter screen structure is prolonged, and the cost is reduced.

Description

Technical Field

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

[0002] Liquid filtration is involved in industries such as steel, electronics, chemicals, automobiles, environmental protection, semiconductors, and electricity. For example, during wastewater pretreatment, wastewater samples are taken for monitoring, and the sampled wastewater generally needs to be filtered before it reaches the monitoring instrument through the instrument pipeline to avoid the accumulation of granular impurities such as silt, rust, and floating matter in the pipeline during long-term operation, which may block the instrument pipeline and cause misjudgment of the detection instrument indicators.

[0003] However, the following problems often occur when filtering using a filtering device:

[0004] (1) The filter device is blocked by impurities and the pipeline cannot pass water, causing the online monitoring instrument to report an error and lose functionality;

[0005] (2) The filter is not easy to disassemble, which is not conducive to convenient operation when it is damaged or needs to be cleaned and disassembled;

[0006] (3) Contaminants and impurities accumulate in the equipment for a long time, causing the parts to age faster and then become damaged, resulting in procurement costs, labor costs, and maintenance costs. Utility Model Content

[0007] One of the purposes of the utility model is to provide a filtering device to solve the problem that the existing filtering device is difficult to clean after being clogged by impurities.

[0008] To this end, the utility model provides a filtering device, comprising: a trough body and a detachable filter screen structure and an overflow plate installed in the trough body, and the trough body is divided into a first trough, a second trough and a third trough; wherein the filter screen structure separates the first trough and the second trough, the first trough is used to pass liquid, and the liquid is filtered through the filter screen structure and enters the second trough; the overflow plate separates the first trough and the third trough, and the top of the overflow plate has a portion whose height is lower than the top of the trough body to form an overflow port, which is used to enter the third trough through the overflow port when the height of the liquid in the first trough reaches the height of the overflow port.

[0009] Optionally, a groove is provided on the side wall of the trough body corresponding to the installation position of the filter screen structure, and the filter screen structure can be slidably inserted into the groove.

[0010] Optionally, a groove is provided on the side wall of the trough body corresponding to the installation position of the overflow plate, and the overflow plate can be slidably inserted into the groove.

[0011] Optionally, the filter screen structure includes a frame and a filter screen arranged on the frame.

[0012] Optionally, a water inlet is provided at the bottom of the first tank for introducing liquid; a first water outlet is provided at the bottom of the second tank for discharging filtered liquid; and a second water outlet is provided at the bottom of the third tank for discharging liquid overflowing into the third tank.

[0013] Optionally, a sampling port is further provided in the second tank for extracting the filtered liquid sample.

[0014] Optionally, the sampling port is arranged at the bottom of the second tank. Also, a sampling tube is arranged in the second tank, and the sampling tube is detachably mounted on the sampling port, so that the outlet of the sampling tube is connected to the sampling port, and the inlet height of the sampling tube is higher than the first predetermined height and lower than the height of the tank body.

[0015] Optionally, an overflow pipe may be provided in the third tank, and the overflow pipe may be detachably mounted on the second water outlet so that the outlet of the overflow pipe is docked with the second water outlet, and the inlet height of the overflow pipe is higher than the second predetermined height and lower than the height of the tank body.

[0016] Optionally, the inlet height of the sampling tube is lower than the inlet height of the overflow tube.

[0017] Optionally, the trough body is a square structure, and the filter screen structure and the overflow plate are installed along the length direction of the trough body to separate the trough body into a second trough, a first trough and a third trough arranged in sequence along its length direction.

[0018] Optionally, the tank body is a transparent tank body.

[0019] In the filter device provided by the utility model, the tank body is divided into a first tank, a second tank and a third tank by using a filter screen structure and an overflow plate, so that the liquid is passed into the first tank, and the liquid can be filtered through the filter screen structure and enter the second tank. At the same time, the third tank is also separated, so that when the liquid level of the liquid passed into the first tank is high, it can overflow to the third tank, thereby avoiding the problem of excessive liquid overflowing the tank body. In addition, the filter screen structure of the filter device in the utility model is detachably installed on the tank body, so that when the filter device is cleaned, the filter screen structure can be directly disassembled for separate cleaning, which reduces the cleaning difficulty of the filter screen structure, and can also improve the cleaning effect of the filter screen structure, which is conducive to extending the service life of the filter screen structure and reducing costs. The filter device provided by the utility model can better avoid the problem that the pipeline cannot pass water due to impurities blocking, prevent the online monitoring instrument from reporting errors, and can improve the phenomenon of accelerated aging of accessories caused by long-term accumulation of polluted impurities in the equipment, thereby reducing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic structural diagram of a filtering device in one embodiment of the utility model.

[0021] Figure 2 It is a schematic diagram of the filter screen structure of the filter device in one embodiment of the utility model.

[0022] Figure 3 It is a schematic diagram of an overflow plate of a filtering device in one embodiment of the utility model.

[0023] Figure 4 It is a schematic diagram of the bottom of the tank of the filtering device in one embodiment of the utility model.

[0024] The reference numerals are as follows:

[0025] 100-slot body;

[0026] 110 - first slot;

[0027] 120 - second slot;

[0028] 130 - third slot;

[0029] 110a / 120a / 130a-bottom of the tank;

[0030] 200-filter screen structure;

[0031] 210-border;

[0032] 220-filter;

[0033] 300-overflow plate;

[0034] 310-overflow port;

[0035] 410-water inlet;

[0036] 420-first water outlet;

[0037] 430-second water outlet;

[0038] 510-sampling port;

[0039] 520-sampling tube;

[0040] 600-Overflow pipe. DETAILED DESCRIPTION

[0041] The filtering device proposed in the utility model is further described in detail below in conjunction with the accompanying drawings. According to the following description, the advantages and features of the utility model will be clearer. It should be noted that the accompanying drawings are all in a very simplified form and use non-precise proportions, which are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the utility model. It should be recognized that relative terms such as "above", "below", "top", "bottom", "above" and "below" shown in the accompanying drawings can be used to describe the relationship between various elements. These relative terms are intended to cover different orientations of elements other than the orientations depicted in the accompanying drawings. For example, if the device is inverted relative to the view in the accompanying drawings, an element described as "above" another element will now be below the element.

[0042] Figure 1 This is a schematic diagram of the structure of a filtering device in one embodiment of the utility model. Figure 2 Schematic diagram of the filter screen structure of the filter device in one embodiment of the utility model. Figure 3 Schematic diagram of an overflow plate of a filter device in one embodiment of the utility model. Figure 4 It is a schematic diagram of the bottom of the tank of the filtering device in one embodiment of the utility model.

[0043] Key References Figure 1 As shown, the filtering device includes: a tank body 100 and a detachable filter mesh structure 200 and an overflow plate 300 installed in the tank body 100, and the tank body 100 is divided into a first tank 110, a second tank 120 and a third tank 130 by the filter mesh structure 200 and the overflow plate 300.

[0044] The filter mesh structure 200 separates the first tank 110 and the second tank 120. The first tank 110 is used to pass liquid, and the liquid is filtered through the filter mesh structure 200 and enters the second tank 120. In a specific example, the second tank 120 can be used as a sampling tank for further extracting a liquid sample to be monitored from the sampling tank. In addition, the overflow plate 300 separates the first tank 110 and the third tank 130, and the top of the overflow plate 300 has a portion whose height is lower than the top of the tank body 100 to form an overflow port, which is used for the liquid in the first tank 110 to enter the third tank 130 through the overflow port when the height reaches the height of the overflow port, so as to avoid the problem that the liquid passed into the first tank 110 cannot be filtered into the second tank 120 in time and overflows the tank body 100.

[0045] In one example, the tank body 100 is a square structure, and the filter screen structure 200 and the overflow plate 300 are installed inside along the length direction of the tank body 100, so as to divide the tank body 100 into a second tank 120, a first tank 110 and a third tank 130 arranged in sequence along the length direction thereof. That is, the second tank 120, the first tank 110 and the third tank 130 are arranged in a horizontal direction, and the first tank 110 for passing liquid is adjacent to the second tank 120 and the third tank 130 at the same time, so that the disturbance of the water body can be effectively alleviated, the stability of the sampled liquid can be ensured, and the accuracy of the monitoring results can be improved.

[0046] In this embodiment, the filter mesh structure 200 is a detachable filter mesh structure. Therefore, when cleaning the filter device, the filter mesh structure 200 can be disassembled for cleaning to remove pollutants attached to the filter mesh structure 200 after long-term use, thereby avoiding clogging of the filter mesh, reducing the difficulty of cleaning the filter mesh structure 200, and improving the cleaning effect of the filter mesh structure 200, which is beneficial to extending the service life of the filter mesh structure 200 and reducing costs.

[0047] In an optional solution, the overflow plate 300 can also be detachably installed in the tank body 100, and then when cleaning the filter device, the overflow plate 300 can also be removed for cleaning. That is to say, when cleaning the filter device, the filter screen structure 200 and the overflow plate 300 can be removed for cleaning separately. At this time, the first tank 110, the second tank 120 and the third tank 130 are interconnected, which is more conducive to cleaning the inner wall and bottom surface of the tank body 100 and improving the cleaning efficiency.

[0048] Exemplarily, the tank body 100 may be provided with a groove (not shown) corresponding to the installation position of the filter mesh structure 200, and the filter mesh structure 200 may be slidably inserted into the groove. Specifically, a groove may be provided on the side wall of the tank body 100 corresponding to the installation position of the filter mesh structure 200, and the filter mesh structure 200 is vertically inserted into the groove.

[0049] Exemplarily, the tank body 100 may also be provided with a groove (not shown in the figure) corresponding to the installation position of the overflow plate 300, and the overflow plate 300 may be slidably inserted into the groove. Specifically, a groove may be provided on the side wall of the tank body 100 corresponding to the installation position of the overflow plate 300, and the overflow plate 300 is vertically inserted into the groove. Since the filter screen structure 200 and the overflow plate 300 are pluggable and removable on the tank body 100, the difficulty of disassembly is relatively low, and ordinary personnel can operate it, further improving the cleaning efficiency.

[0050] Specific combination Figure 1 and Figure 2 As shown, the filter screen structure 200 includes a frame 210 and a filter screen 220 disposed on the frame 210. The periphery of the filter screen 220 can be bonded and fixed to the frame 210; or, the filter screen 220 can also be fixed to the frame 210 by bolts, for example, a threaded blind hole can be provided on the frame 210, and the filter screen 220 can be fixed to the frame 210 by bolts. The material of the filter screen 220 can include glass fiber, for example, because the glass fiber has good chemical stability, physical filtration can be achieved during filtration without causing changes in the physical and chemical properties of the liquid, so that when the filtered liquid is monitored, the measurement result can be guaranteed to be true and the chemical index of the liquid can be accurately reflected. In addition, the aperture of the filter screen 220 can be adjusted according to actual needs, for example, the aperture of the filter screen 220 can be set to 20 meshes, so that it can be used to filter out particles larger than 0.85 mm.

[0051] Then combine Figure 1 and Figure 3 As shown, the top of the overflow plate 300 has a portion whose height is lower than the top of the tank body 100 to form an overflow port 310, and the height of the overflow port 310 can also be made not higher than the top of the filter screen structure 200. In an optional example, only a portion of the top of the overflow plate 300 is lower than the top of the tank body 100 to form a recess, for example Figure 3 The overflow plate 300 has a lower height only in the middle area of ​​its top to form an overflow port 310, so that the overflow plate 300 can present a "concave"-shaped structure; however, in other examples, the entire top of the overflow plate 300 can be made lower than the top of the trough body 100 to form a wider overflow port.

[0052] Further, it is possible to combine body 1 and Figure 4As shown, the bottom 110a of the first tank 110 is provided with a water inlet 410 for introducing liquid. The bottom 120a of the second tank 120 may be provided with a first water outlet 420 for discharging filtered liquid. And the bottom 130a of the third tank 130 may be provided with a second water outlet 420 for discharging liquid overflowing to the third tank 130. Liquid circulation can be achieved through the water inlet 410, the first water outlet 420 and the second water outlet 430.

[0053] In one example, the second tank 120 can be used as a sampling tank, so a sampling port 510 can be provided in the second tank 120 for extracting the filtered liquid sample, and the sampling port 510 can be provided at the tank bottom 120a of the second tank 120. Furthermore, the size of the sampling port 510 can be made smaller than the size of the first water outlet 420.

[0054] For more information, please refer to Figure 1 As shown, a sampling tube 520 is also provided in the second tank 120, and the sampling tube 520 is detachably mounted on the sampling port 510, so that the outlet of the sampling tube 520 is docked with the sampling port 510, and the inlet height of the sampling tube 520 can be higher than the first predetermined height, so that the sampling tube 520 can be used to extract the liquid sample from a higher position of the second tank 120, rather than extracting the liquid sample from the bottom position of the second tank 120, so as to avoid a large amount of particles and the like being deposited at the bottom of the tank after the filter device is used for a long time and mixed into the liquid sample, thereby affecting the monitoring result. For example, the inlet height of the sampling tube 520 can be higher than half the height of the tank body 100, and lower than the overall height of the tank body 100. Exemplarily, the sampling tube 520 can be a strip-shaped pipe structure, and the strip-shaped sampling tube 520 is vertically mounted above the sampling port 510.

[0055] For optional solutions, continue to refer to Figure 1 As shown, an overflow pipe 600 may also be provided in the third tank 130, and the overflow pipe 600 may be detachably mounted on the second water outlet 430, so that the outlet of the overflow pipe 600 is docked with the second water outlet 430, and the inlet height of the overflow pipe 600 may be higher than the second predetermined height, so when the liquid height in the third tank 130 reaches the inlet height of the overflow pipe 600, the liquid therein may be discharged through the overflow pipe 600. Exemplarily, the overflow pipe 600 may also be a strip-shaped pipe structure, and the strip-shaped overflow pipe 600 is vertically mounted above the second water outlet 430.

[0056] Furthermore, the inlet height of the overflow pipe 600 in the third tank 130 can be higher than the inlet height of the sampling tube 520 in the second tank 120, that is, the inlet height of the sampling tube 520 is lower than the inlet height of the overflow pipe 600, so that the liquid can flow to the sampling tube 520, ensuring the extraction of the liquid sample. In addition, the bottom surface height of the overflow port 310 in the overflow plate 300 can be adjusted to be higher than the inlet height of the sampling tube 520, and the control of the liquid flow direction can also be achieved, for example, the bottom surface height of the overflow port 310 in the overflow plate 300 can be made consistent with the inlet height of the overflow pipe 600.

[0057] Combine the following Figure 1-Figure 4 , the working process is explained by taking the filtering device in a specific example, specifically: the liquid enters the first tank 110 through the water inlet 410, the liquid in the first tank 110 enters the second tank 120 after being filtered by the filter mesh structure 200, and when the liquid level in the second tank 120 reaches the inlet height of the sampling tube 510, the liquid can enter the sampling tube 510 for liquid sampling; during this process, the liquid in the second tank 120 can also be discharged through the first water outlet 420, so that the liquid in the tank body 100 can maintain a relatively stable dynamic flow. However, after long-term use, some suspended matter, particulate matter, etc. will adhere to the filter net, causing the filtration speed of the filter net structure 200 to decrease, causing the liquid level in the first tank 110 to rise, and after the liquid level reaches the height of the overflow port 310, it will overflow into the third tank 130; after continuous use, the liquid level in the third tank 130 will gradually rise, and after the liquid level reaches the inlet height of the overflow pipe 600, the liquid can be discharged from the overflow pipe 600.

[0058] It should be noted that, in practical applications, the sizes of the first water outlet 420 and the second water outlet 430 can be adjusted accordingly according to specific circumstances, thereby controlling the discharge speed of the liquid in the tank body 100. In addition, a water pressure regulating device can be connected to the water inlet 410 to adjust the water flow pressure of the liquid introduced, so that the liquid introduction speed and discharge speed in the tank body 100 remain substantially constant, thereby maintaining continuous sampling of the sampling tube 520 and ensuring real-time monitoring of the liquid.

[0059] Furthermore, when the filter device needs to be cleaned, the overflow pipe 600 can be removed first to expose the second water outlet 430 at the bottom to facilitate the rapid discharge of the liquid in the tank body; then, the overflow plate 300 and the filter structure 200 are removed. At this time, the first tank 110, the second tank 120 and the third tank 130 are interconnected, and the liquid in the tank body 100 can be discharged through the first water outlet 420 and the second water outlet 430.

[0060] Exemplarily, the tank body 100 can be a transparent tank body, so that the state of the liquid in the tank body can be observed. For example, by observing the liquid level in the third tank 130, it can be determined whether cleaning is required. When the liquid level in the third tank 130 is high, it means that the filter screen may have a serious blockage problem and needs to be cleaned. Moreover, for the transparent tank body 100, it is more intuitive and convenient to observe the cleanliness of the equipment during cleaning, which is convenient for timely maintenance. In addition, the sampling tube 520 and the overflow pipe 600 in the filter device can also be transparent tubes, wherein the materials of the tank body 100, the sampling tube 520 and the overflow pipe 600 can include PVC or UPVC, for example.

[0061] In summary, in the filter device provided by the present disclosure, the tank body is divided into a first tank, a second tank and a third tank by using a filter screen structure and an overflow plate, so that the liquid is passed into the first tank, and the liquid can be filtered through the filter screen structure and enter the second tank. At the same time, the third tank is also separated, so that when the liquid level of the liquid passed into the first tank is high, it can overflow to the third tank, thereby avoiding the problem of excessive liquid overflowing the tank body. In addition, the filter screen structure in the filter device is detachably mounted on the tank body, so that when the filter device is cleaned, the filter screen structure can be directly disassembled for separate cleaning, which reduces the cleaning difficulty of the filter screen structure, and can also improve the cleaning effect of the filter screen structure, which is conducive to extending the service life of the filter screen structure and reducing costs. Further, the overflow plate in the filter device can also be detachably mounted on the tank body, so that the filter screen structure and the overflow plate can be removed during the cleaning process, which is more conducive to cleaning the filter screen structure, the overflow plate and the tank body, and improves the cleaning efficiency and cleaning cleanliness.

[0062] The filtering device provided by the present disclosure can be used in the semiconductor field, for example. Specifically, it can filter wastewater when treating wastewater from semiconductor processing, and transport the filtered liquid to a monitoring instrument for monitoring.

[0063] It should be noted that, although the present invention has been disclosed as a preferred embodiment, the above embodiment is not intended to limit the present invention. For any technician familiar with the art, without departing from the scope of the technical solution of the present invention, the above disclosed technical content can be used to make many possible changes and modifications to the technical solution of the present invention, or modified into equivalent embodiments of equivalent changes. Therefore, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the scope of protection of the technical solution of the present invention.

[0064] It should also be recognized that the terms described herein are only used to describe specific embodiments and are not used to limit the scope of the utility model. It must be noted that the singular forms "one" and "a kind" used herein and in the appended claims include plural references unless the context clearly indicates the opposite meaning. For example, a reference to "a step" or "a device" means a reference to one or more steps or devices, and may include secondary steps and secondary devices. All conjunctions used should be understood in the broadest sense. And, the word "or" should be understood to have a logical "or" definition, rather than a logical "exclusive or" definition, unless the context clearly indicates the opposite meaning. In addition, the implementation of the method and / or device in the embodiment of the utility model may include performing the selected task manually, automatically, or in combination.

Claims

1. A filtering device, characterized in that: include: A tank body and a detachable filter screen structure and an overflow plate installed in the tank body, and the tank body is divided into a first tank, a second tank and a third tank; The filter mesh structure separates the first slot and the second slot, and the first slot is used to allow liquid to pass through, and the liquid is filtered through the filter mesh structure and enters the second slot; The overflow plate separates the first tank and the third tank, and the top of the overflow plate has a portion whose height is lower than the top of the tank body to form an overflow port for the liquid in the first tank to enter the third tank through the overflow port when the height of the liquid in the first tank reaches the height of the overflow port.

2. The filtering device according to claim 1, characterized in that A groove is provided on the side wall of the tank body corresponding to the installation position of the filter screen structure, and the filter screen structure can be slidably inserted into the groove.

3. The filtering device according to claim 1, characterized in that A groove is provided on the side wall of the trough body corresponding to the installation position of the overflow plate, and the overflow plate can be slidably inserted into the groove.

4. The filtering device according to claim 1, characterized in that: The filter screen structure comprises a frame and a filter screen arranged on the frame.

5. The filtering device according to claim 1, characterized in that: The bottom of the first tank is provided with a water inlet for introducing liquid; the bottom of the second tank is provided with a first water outlet for discharging filtered liquid; and the bottom of the third tank is provided with a second water outlet for discharging liquid overflowing into the third tank.

6. The filtering device according to claim 5, characterized in that The second tank is also provided with a sampling port for extracting the filtered liquid sample.

7. The filtering device according to claim 6, characterized in that The sampling port is arranged at the bottom of the second tank; Furthermore, a sampling tube is provided in the second tank, and the sampling tube is detachably mounted on the sampling port so that the outlet of the sampling tube is docked with the sampling port, and the inlet height of the sampling tube is higher than the first predetermined height and lower than the height of the tank body.

8. The filtering device according to claim 7, characterized in that An overflow pipe may also be provided in the third tank. The overflow pipe may be detachably mounted on the second water outlet so that the outlet of the overflow pipe is connected to the second water outlet. The inlet height of the overflow pipe is higher than the second predetermined height and lower than the height of the tank body.

9. The filtering device according to claim 8, characterized in that The inlet height of the sampling tube is lower than the inlet height of the overflow tube.

10. The filtering device according to claim 1, characterized in that The tank body is in a square structure, and the filter screen structure and the overflow plate are installed along the length direction of the tank body to separate the tank body into a second tank, a first tank and a third tank which are sequentially arranged along the length direction thereof.

11. The filtering device according to claim 1, characterized in that: The tank body is a transparent tank body.

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