Filtering structure and micro-ecological filter bed

Abstract

The filter structure comprises a filter cartridge, two ends of the filter cartridge are provided with openings, a filter screen is fixedly connected between the inner walls of the filter cartridge, a water inlet pipe is fixedly connected between the inner walls of the opening at one end of the filter cartridge, and two ends of the water inlet pipe are respectively positioned inside and outside the filter cartridge. The end, located in the filter cartridge, of the water inlet pipe extends to the lower portion of the filter screen through a through hole formed in the center of the filter screen, a sealing cover is detachably installed at an opening in the other end of the filter cartridge, a water storage box is fixedly connected to the outer portion of the upper end of the filter cartridge, and a water storage cavity is formed in the water storage box. The water storage cavity is communicated with the interior of the filter cartridge through a plurality of overflow holes which are formed in the filter cartridge and the surface of the water storage box in a penetrating mode and are in one-to-one correspondence, and a water outlet pipe is further integrally arranged on the outer wall of one side of the water storage box. And limitation in use is reduced.

Description

Technical Field

[0001] The utility model relates to the field of microecological filter beds, and in particular to a filtering structure and a microecological filter bed. Background Art

[0002] Microecological filter bed is a sewage treatment facility. Its principle is to use the biochemical reaction and physical adsorption during the growth of plants to remove organic matter, nitrogen, phosphorus and other pollutants in domestic wastewater or industrial wastewater. Specifically, the microecological filter bed uses plant roots, microorganisms and soil as treatment media. Through plant absorption, biological degradation and soil filtration, harmful substances in sewage are converted into harmless substances, and the purpose of purifying water quality is achieved. In addition, the microecological filter bed can also convert gray energy in sewage into plant bodies. The organic matter in sewage is decomposed by microorganisms and converted into nutrients required by plants, thereby realizing the transformation of gray resources into green sustainable resources.

[0003] Chinese Patent: CN220183016U discloses a microecological filter bed system, which belongs to the technical field of sewage treatment. It includes a sedimentation tank, a filter bed body and a water storage tank. A first water pipe is installed between the sedimentation tank and the filter bed body, a second water pipe is installed between the filter bed body and the water storage tank, a first filter net is fixed inside the filter bed body, and a second water pipe is installed between the filter bed body and the water storage tank. This application has a better purification effect.

[0004] However, the above scheme still has certain defects. The inventors have found through research that in the above scheme, a sedimentation tank is set upstream of the microecological filter bed system, and a filter net is set in the filter bed to preliminarily settle and filter the foreign matter and impurities in the water to be purified. This separate and independent setting will relatively take up more space, and may have certain limitations in use in some cases. It is also not convenient to clean and recover the foreign matter and impurities filtered out.

[0005] How to invent a filtration structure and a microecological filter bed to improve these problems has become an urgent problem to be solved by technicians in this field. Utility Model Content

[0006] In order to make up for the above shortcomings, the utility model provides a filtering structure and a microecological filter bed, which aims to improve the existing technology of setting a sedimentation tank upstream in the microecological filter bed system, and setting a filter net in the filter bed to preliminarily settle and filter foreign matter and impurities in the water to be purified. This kind of separate and independent setting will relatively take up more space, and may have certain limitations in use in some cases. It is also not convenient to clean and recover the foreign matter and impurities under filtration.

[0007] In the first aspect, the utility model provides a filtering structure, including a filter cartridge, wherein both ends of the filter cartridge are opened, a filter screen is fixedly connected between the inner walls of the filter cartridge, and a water inlet pipe is fixedly connected between the inner walls of the opening at one end of the filter cartridge, and both ends of the water inlet pipe are respectively located inside and outside the filter cartridge, and the end of the water inlet pipe located inside the filter cartridge extends to the bottom of the filter screen through a through hole provided at the center of the filter screen, and a sealing cover is detachably installed at the opening at the other end of the filter cartridge, and a water storage box is fixedly connected to the outside of the upper end of the filter cartridge, and a water storage cavity is provided inside the water storage box, and the water storage cavity is connected to the inside of the filter cartridge through a plurality of overflow holes that are evenly distributed in an annular shape and are opened and correspond to each other on the surfaces of the filter cartridge and the water storage box, and a water outlet pipe is also integrally provided on the outer wall of one side of the water storage box, and one end of the water outlet pipe is connected to the water storage cavity.

[0008] In a preferred technical solution of the utility model, a thread is arranged on the outer wall of the opening at one end of the filter cartridge, and the sealing cover is threadedly connected to the one end of the filter cartridge through a thread groove provided on the inner wall of the circumference thereof.

[0009] In a preferred technical solution of the utility model, a flexible card cover is integrally provided at the middle of the inner wall at the bottom of the sealing cover.

[0010] In a preferred technical solution of the utility model, a sealing ring is provided at an edge of one end of the flexible card cover away from the sealing cover.

[0011] In a preferred technical solution of the utility model, the overall vertical cross-section of the filter cartridge is rhombus-shaped, and the filter screen is arranged at the position where its diameter is the largest.

[0012] In a preferred technical solution of the utility model, the water inlet pipe and the overflow hole are both provided with connecting flanges at one end away from the water storage box.

[0013] In a preferred technical solution of the utility model, the connection point between the water outlet pipe and the water storage cavity is arranged at a lower part of the outer wall of the water storage box.

[0014] In a second aspect, the utility model further provides a microecological filter bed, comprising the above-mentioned filtering structure.

[0015] The beneficial effects of the utility model are as follows: the utility model obtains a filtering structure and a microecological filter bed through the above-mentioned design. When in use, the device is connected to the water inlet and outlet ends of the microecological filter bed. When upstream sewage enters the filter bed or the water in the filter bed is discharged, the water enters the water storage box from the filter cylinder in an overflow manner. During the process, the impurities and foreign matter therein are filtered through the filter screen and then discharged from the outlet pipe. At the same time, under the influence of gravity, the filtered impurities and foreign matter are deposited at the bottom of the filter cylinder. When a certain amount is accumulated, the foreign matter and impurities can be recovered and cleaned by opening the sealing cover to ensure the overall filtering effect. Performing the filtering and sedimentation steps at the same time can improve the filtering efficiency while reducing the space occupied by the overall equipment and reducing the limitations in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a schematic three-dimensional diagram of the overall structure provided by the embodiment of the utility model;

[0018] Figure 2 A schematic three-dimensional diagram of the overall cross-sectional structure provided for an embodiment of the utility model;

[0019] Figure 3 A schematic three-dimensional diagram of the overall cross-sectional separation structure provided by an embodiment of the utility model;

[0020] Figure 4 This is a schematic three-dimensional diagram of the overall structure of the filter cartridge provided in an embodiment of the utility model.

[0021] In the figure: 1-filter cartridge; 2-filter screen; 3-water inlet pipe; 4-water storage box; 5-sealing cover; 6-overflow hole; 7-water outlet pipe; 101-thread; 401-water storage chamber; 501-flexible card cover. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the implementation of the utility model clearer, the technical solution in the implementation of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation of the utility model. Obviously, the described implementation is a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figures 1 to 4 The utility model provides a technical solution: a filtering structure, including a filter cartridge 1, with openings at both ends of the filter cartridge 1, a filter screen 2 is fixedly connected between the inner walls of the filter cartridge 1, and a water inlet pipe 3 is fixedly connected between the inner walls of the opening at one end of the filter cartridge 1, and the two ends of the water inlet pipe 3 are respectively located inside and outside the filter cartridge 1, and one end of the water inlet pipe 3 located inside the filter cartridge 1 extends to the bottom of the filter screen 2 through a through hole arranged at the center of the filter screen 2, and a sealing cover 5 is detachably installed at the opening of the other end of the filter cartridge 1, and a water storage box 4 is fixedly connected to the outside of the upper end of the filter cartridge 1, and a water storage chamber 401 is arranged inside the water storage box 4, and the water storage chamber 401 is communicated with the inside of the filter cartridge 1 through a plurality of overflow holes 6 that are evenly distributed in an annular shape and are opened and correspond to each other on the surfaces of the filter cartridge 1 and the water storage box 4, and a water outlet pipe 7 is also integrally arranged on the outer wall of one side of the water storage box 4, and one end of the water outlet pipe 7 is communicated with the water storage chamber 401.

[0024] See also Figure 3 to Figure 4 A thread 101 is arranged on the outer wall of the opening at one end of the filter cartridge 1, and the sealing cover 5 is threadedly connected to one end of the filter cartridge 1 through a thread groove arranged on the inner wall of the circumference thereof.

[0025] The detachable connection between the sealing cover 5 and the filter cartridge 1 via the thread 101 can facilitate the removal and recovery of foreign matter inside the filter cartridge 1, thereby reducing the accumulation of a large amount of foreign matter inside the filter cartridge 1 that affects the overall filtering effect.

[0026] Furthermore, a flexible card cover 501 is integrally provided at the middle of the inner wall at the bottom of the sealing cover 5 .

[0027] The flexible card cover 501 is made of a deformable and highly tough material. When the sealing cover 5 is installed at one end of the filter cartridge 1, the outer wall of the flexible card cover 501 fits against the inner wall of the lower half of the filter cartridge 1, thereby improving the overall sealing effect of the filter cartridge 1 and reducing the occurrence of water seepage. At the same time, when it is necessary to open the sealing cover 5 to clean the inside of the filter cartridge 1, foreign matter filtered by the filter screen 2 is also accumulated in the flexible card cover 501, and is not easy to spill after removing the sealing cover 5.

[0028] Furthermore, a sealing ring is provided at an edge of one end of the flexible card cover 501 away from the sealing cover 5 .

[0029] By providing a sealing ring at the top edge of the flexible card cover 501, it can be more closely fitted to the inner wall of the filter cartridge 1, further improving the overall sealing effect.

[0030] Furthermore, the overall vertical cross-section of the filter cartridge 1 is a rhombus, and the filter screen 2 is arranged at the point where its diameter is the largest.

[0031] The upper and lower sections of the filter cartridge 1 on both sides of the filter screen 2 are both configured with a gradually contracting structure, thereby improving the foreign matter aggregation effect and increasing the overflow water pressure. The filter screen 2 is arranged at the maximum diameter of the filter cartridge 1 to ensure that the filter screen 2 filters foreign matter in the water with the largest area, thereby improving the filtration efficiency.

[0032] Furthermore, the water inlet pipe 3 and the overflow hole 6 are both provided with connecting flanges at their ends away from the water storage box 4 .

[0033] By providing a connecting flange at one end of the water inlet pipe 3 and the overflow hole 6, it is convenient to connect the whole to the water path of the microecological filter bed system, thereby improving the convenience of the installation and disassembly process.

[0034] Furthermore, the connection point between the water outlet pipe 7 and the water storage chamber 401 is arranged at a lower part of the outer wall of the water storage box 4 .

[0035] The water outlet pipe 7 is arranged at a lower position of the outer wall of the water storage box 4 to facilitate the discharge of water in the water storage cavity 401 after being filtered by the filter screen 2.

[0036] Working principle: connect one end of the water inlet pipe 3 to the sewage drain pipe or the microecological filter bed outlet pipe, connect one end of the overflow hole 6 to the microecological filter bed water inlet pipe or the water purification system drain pipe. When water enters the filter cartridge 1 from the water inlet pipe 3, it first gathers under the filter screen 2. As the amount of water inside the filter cartridge 1 increases, the water will flow to the upper end of the filter cartridge 1, and enter the water storage chamber 401 through the overflow hole 6, and then be discharged from 7. In this process, foreign matter and impurities in the water will be blocked by the filter screen 2 and stay in the lower half of the filter cartridge 1, and under the influence of gravity, foreign matter and impurities will be deposited at the bottom of the filter cartridge 1, reducing the situation where foreign matter blocks the filter screen 2 and reduces the filtering effect. When foreign matter and impurities inside the filter cartridge 1 accumulate to a certain extent, the sealing cover 5 can be opened, and the flexible card cover 501 can be taken out to recycle the filtered foreign matter and impurities.

[0037] The above description is only the preferred implementation of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A filtering structure, characterized in that: It includes a filter cartridge, both ends of which are opened, a filter screen is fixedly connected between the inner walls of the filter cartridge, a water inlet pipe is fixedly connected between the inner walls of the opening at one end of the filter cartridge, two ends of the water inlet pipe are respectively located inside and outside the filter cartridge, one end of the water inlet pipe located inside the filter cartridge extends to the bottom of the filter screen through a through hole provided at the center of the filter screen, a sealing cover is detachably installed at the opening at the other end of the filter cartridge, a water storage box is fixedly connected to the outside of the upper end of the filter cartridge, a water storage cavity is provided inside the water storage box, the water storage cavity is connected to the inside of the filter cartridge through a number of overflow holes that are evenly distributed in an annular shape and are opened and correspond to each other on the surfaces of the filter cartridge and the water storage box, a water outlet pipe is also integrally provided on the outer wall of one side of the water storage box, and one end of the water outlet pipe is connected to the water storage cavity.

2. The filtering structure according to claim 1, characterized in that: The outer wall of the opening at one end of the filter cartridge is provided with a thread, and the sealing cover is threadedly connected to the one end of the filter cartridge through a thread groove provided on the inner wall of the circumference thereof.

3. The filter structure according to claim 1, characterized in that: A flexible card cover is integrally arranged at the middle of the inner wall at the bottom of the sealing cover.

4. The filtering structure according to claim 3, characterized in that: A sealing ring is arranged at the edge of one end of the flexible card cover away from the sealing cover.

5. The filtering structure according to claim 1, characterized in that: The overall vertical cross-section of the filter cartridge is rhombus-shaped, and the filter screen is arranged at the position where its diameter is the largest.

6. The filtering structure according to claim 1, characterized in that: The water inlet pipe and the overflow hole are both provided with connecting flanges at one end away from the water storage box.

7. The filtering structure according to claim 1, characterized in that: The connection point between the water outlet pipe and the water storage cavity is arranged at a lower part of the outer wall of the water storage box.

8. A microecological filter bed, characterized in that: The filter structure comprises the filter structure described in any one of claims 1 to 7.

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