Multi-stage multi-medium filter

Abstract

The utility model discloses a multi-stage multi-medium filter and belongs to the technical field of filters. A multi-stage multi-medium filter comprises a main filter shell and two auxiliary filter shells, circulating pipes are installed between the main filter shell and the auxiliary filter shells, pneumatic pumps are installed at the rear ends of the auxiliary filter shells, and air valves are installed between the pneumatic pumps and the auxiliary filter shells. The multi-medium filter solves the problems that in the actual using process of an existing multi-medium filter, the water filtering mode is single, and the filtering effect cannot be improved, multi-medium filtering work is conducted through the kieselguhr and the glass fiber cloth in the auxiliary filter shell, filtered clean water flows into the water outlet pipe through the water guiding channel, and the water quality is improved. And the sewage which is not completely filtered can be compressed through the pneumatic pump, so that the sewage enters the circulating pipe under the pressure, and then is secondarily filtered through the filter element, the filtering effect is improved, and long-term work is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of filters, in particular to a multi-stage multi-media filter. Background Technique

[0002] A filter is a device made of a variety of materials with a filtering and intercepting function for filtering impurities in water. The filter can intercept most of the impurities in water and discharge relatively clean water.

[0003] Chinese Patent with the publication number CN215310758U discloses a layered multi-stage multi-media filter, which relates to the technical field of filters, including an outer cylinder, an inner cylinder, a water inlet pipe and an end cover. A through hole is arranged in the middle of the top of the outer cylinder, and a water inlet pipe is fixedly installed in the through hole. And an opening is arranged at the bottom of the outer cylinder, and an inner cylinder is threadedly installed at the opening, which facilitates the replacement and cleaning of the inner cylinder. At the same time, a second filtering mechanism is arranged in the inner cylinder, and diatomaceous earth and a first filtering mechanism are arranged inside the outer cylinder. First, the water is preliminarily filtered by the second filtering mechanism. After the filtration is completed, the water flows into the outer cylinder through a one-way valve. After being filtered again by the diatomaceous earth and the first filtering mechanism, finally, the filtered water is discharged from the bottom of the inner cylinder. And both the first filtering mechanism and the second filtering mechanism are composed of filter felt, quartz sand, activated carbon and porous ceramic plates. Adopting a multi-stage multi-media filtering method greatly improves the filtering effect of the device.

[0004] During the actual use of the multi-media filter of the above patent, the filtering method for water quality is single and the filtering effect cannot be improved. Therefore, it does not meet the existing requirements. For this reason, we propose a multi-stage multi-media filter. Content of the Utility Model

[0005] The purpose of the utility model is to provide a multi-stage multi-media filter, which solves the problem that the filtering method for water quality is single and the filtering effect cannot be improved during the actual use of the multi-media filter proposed in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A multi-stage multi-media filter includes a main filter housing and two auxiliary filter housings. The two auxiliary filter housings are respectively arranged on both sides of the main filter housing. A circulation pipe is installed between the main filter housing and the auxiliary filter housing, and an air pressure pump is installed at the rear end of the auxiliary filter housing. And an air valve is installed between the air pressure pump and the auxiliary filter housing. The incompletely filtered sewage can compress air through the air pressure pump, so that the sewage is pressured into the circulation pipe, thereby performing secondary filtration, improving the filtering effect, and being beneficial to long-term operation.

[0007] Preferably, a maintenance plate is installed outside the main filter housing, and a water outlet pipe is installed below the main filter housing. A water guiding channel is provided between the water outlet pipe and the auxiliary filter housing. The disassembly work is carried out through the maintenance plate, and the filtered clear water flows into the water outlet pipe through the water guiding channel to complete the multi-layer filtering work.

[0008] Preferably, a filter element is installed inside the main filter housing, a partition plate is installed below the filter element, and return channels are provided on both sides of the partition plate. The return channels are respectively communicated with the main filter housing and the auxiliary filter housing. The sewage is filtered by the filter element and then flows into the return channels, and multi-media filtering work is carried out through the diatomaceous earth and fiberglass cloth inside the auxiliary filter housing.

[0009] Preferably, a pull-out box is installed on one side outside the auxiliary filter housing. The pull-out box is hermetically connected to the auxiliary filter housing, and a sewage discharge pipe is installed inside the pull-out box. The sewage discharge pipe is opened for cleaning work.

[0010] Preferably, diatomaceous earth is provided inside the auxiliary filter housing, and fiberglass cloth is provided below the diatomaceous earth. By adopting a multi-stage multi-media filtering method, the filtering effect of the device is greatly improved, and the purity of water is increased.

[0011] Preferably, a feed box is installed above the main filter housing. The feed box is hermetically connected to the circulation pipe, a feed pipe is installed above the feed box, a water guiding pipe is installed at the lower end inside the feed pipe, and a check valve is installed below the water guiding pipe. By adopting a multi-stage multi-media filtering method, the filtering effect of the device is greatly improved.

[0012] Compared with the prior art, the beneficial effects of the present utility model are:

[0013] When the multi-stage filter of the present utility model works, sewage is introduced through the feed box, the feed pipe guides the sewage into the check valve, the sewage is filtered by the filter element inside the main filter housing, the sewage is filtered by the filter element and then flows into the return channels, and multi-media filtering work is carried out through the diatomaceous earth and fiberglass cloth inside the auxiliary filter housing. The filtered clear water flows into the water outlet pipe through the water guiding channel to complete the multi-layer filtering work. The unfiltered sewage can be compressed by air pressure pump to make the sewage enter the circulation pipe under pressure, and then pass through the filter element again for secondary filtering, improving the filtering effect and being beneficial for long-term work. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is an isometric view of the front view of the present utility model;

[0015] Figure 2 is an isometric view of the bottom view of the present utility model;

[0016] Figure 3 This is the internal structure diagram of the present utility model.

[0017] In the figure: 1. Main filter housing; 101. Maintenance panel; 102. Outlet pipe; 103. Filter element; 104. Partition board; 2. Auxiliary filter housing; 201. Circulation pipe; 202. Drawer box; 203. Drain pipe; 204. Air pressure pump; 205. Air valve; 206. Diatomite; 207. Return channel; 208. Fiberglass cloth; 209. Water conduction channel; 3. Feed box; 301. Feed pipe; 302. Water guide pipe; 303. Check valve. Specific embodiments

[0018] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present utility model.

[0019] In order to solve the problem that in the actual use process of the existing multi-media filter, the water quality filtration method is single and the filtration effect cannot be improved, please refer to Figure 1 - Figure 3 This embodiment provides the following technical solutions:

[0020] A multi-stage multi-media filter includes a main filter housing 1 and two auxiliary filter housings 2. The two auxiliary filter housings 2 are respectively arranged on both sides of the main filter housing 1. A circulation pipe 201 is installed between the main filter housing 1 and the auxiliary filter housing 2, and an air pressure pump 204 is installed at the rear end of the auxiliary filter housing 2. An air valve 205 is installed between the air pressure pump 204 and the auxiliary filter housing 2. The incompletely filtered sewage can compress air through the air pressure pump 204, so that the sewage is pressurized and enters the circulation pipe 201, and then passes through the filter element 103 again for secondary filtration, improving the filtration effect and being beneficial to long-term operation.

[0021] In addition, a maintenance panel 101 is installed outside the main filter housing 1, and an outlet pipe 102 is installed below the main filter housing 1 for disassembly through the maintenance panel 101.

[0022] In addition, a water conduction channel 209 is arranged between the outlet pipe 102 and the auxiliary filter housing 2, and the filtered clear water flows into the outlet pipe 102 through the water conduction channel 209 to complete the multi-layer filtration work.

[0023] In addition, a filter element 103 is installed inside the main filter housing 1, a partition 104 is installed below the filter element 103, and return channels 207 are provided on both sides of the partition 104. The return channels 207 are respectively communicated with the main filter housing 1 and the auxiliary filter housing 2. After the sewage is filtered by the filter element 103, it flows into the return channels 207, and multi-media filtration is carried out through the diatomaceous earth 206 and the fiberglass cloth 208 inside the auxiliary filter housing 2.

[0024] Specifically, after the sewage is filtered by the filter element 103, it flows into the return channels 207, and multi-media filtration is carried out through the diatomaceous earth 206 and the fiberglass cloth 208 inside the auxiliary filter housing 2. The filtered clear water flows into the outlet pipe 102 through the water guiding channel 209 to complete the multi-layer filtration work. The sewage that is not completely filtered can be compressed by the air pressure pump 204 to make the sewage enter the circulation pipe 201 under pressure, so as to be filtered again by the filter element 103, improving the filtration effect and being beneficial to long-term operation.

[0025] In order to solve the problem that sewage is not convenient to divert during the actual use of the existing multi-media filter, please refer to Figure 1 - Figure 3 In this embodiment, the following technical solutions are provided:

[0026] In addition, a drawer box 202 is installed on one side of the outside of the auxiliary filter housing 2. The unfiltered wastewater is stored in the drawer box 202 for centralized storage, which is convenient for subsequent treatment. The drawer box 202 is hermetically connected to the auxiliary filter housing 2, and a sewage discharge pipe 203 is installed inside the drawer box 202. The sewage discharge pipe 203 is opened for cleaning work.

[0027] In addition, diatomaceous earth 206 is provided inside the auxiliary filter housing 2, and a fiberglass cloth 208 is provided below the diatomaceous earth 206. By adopting a multi-stage multi-media filtration method, the filtration effect of the device is greatly improved, and the purity of water is increased.

[0028] In addition, a feed box 3 is installed above the main filter housing 1. The feed box 3 is hermetically connected to the circulation pipe 201, and a feed pipe 301 is installed above the feed box 3. A water guiding pipe 302 is installed at the lower end inside the feed pipe 301, and a check valve 303 is installed below the water guiding pipe 302. When the multi-stage filter works, sewage is introduced through the feed box 3, the feed pipe 301 introduces the sewage into the check valve 303, and the sewage is filtered by the filter element 103 inside the main filter housing 1.

[0029] Specifically, when the multi-stage filter works, sewage is introduced through the feed box 3. The feed pipe 301 introduces the sewage into the one-way valve 303, and the sewage is filtered through the filter element 103 inside the main filter housing 1. A sewage discharge pipe 203 is installed inside the draw box 202. By opening and closing the sewage discharge pipe 203, the cleaning work can be carried out. By adopting a multi-stage and multi-media filtering method, the filtering effect of the device is greatly improved, and the purity of water is increased.

[0030] Working principle: When the multi-stage filter works, sewage is introduced through the feed box 3. The feed pipe 301 introduces the sewage into the one-way valve 303, and the sewage is filtered through the filter element 103 inside the main filter housing 1. After being filtered by the filter element 103, the sewage flows into the return channel 207, and multi-media filtering work is carried out through the diatomite 206 and fiberglass cloth 208 inside the auxiliary filter housing 2. The filtered clear water flows into the water outlet pipe 102 through the water guide channel 209, completing the multi-layer filtering work. The sewage that has not been completely filtered can be compressed by the air pump 204 to make the sewage enter the circulation pipe 201 under pressure, so as to pass through the filter element 103 again for secondary filtering, improving the filtering effect and being conducive to long-term operation. A sewage discharge pipe 203 is installed inside the draw box 202. By opening and closing the sewage discharge pipe 203, the cleaning work can be carried out. By adopting a multi-stage and multi-media filtering method, the filtering effect of the device is greatly improved.

[0031] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0032] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention.

Claims

1. A multi-stage multi-media filter, comprising a main filter housing (1) and two auxiliary filter housings (2), characterized in that: The two auxiliary filter housings (2) are respectively arranged on both sides of the main filter housing (1), a circulation pipe (201) is installed between the main filter housing (1) and the auxiliary filter housing (2), and an air pressure pump (204) is installed at the rear end of the auxiliary filter housing (2), and an air valve (205) is installed between the air pressure pump (204) and the auxiliary filter housing (2).

2. A multi-stage multi-media filter according to claim 1, characterized in that: A filter element (103) is installed inside the main filter housing (1), a partition (104) is installed below the filter element (103), and return channels (207) are provided on both sides of the partition (104), and the return channels (207) are respectively connected to the main filter housing (1) and the auxiliary filter housing (2).

3. A multi-stage multi-media filter according to claim 1, characterized in that: A pull-out box (202) is installed on one side of the exterior of the auxiliary filter housing (2), and the pull-out box (202) is sealedly connected to the auxiliary filter housing (2).

4. A multi-stage multi-media filter according to claim 1, characterized in that: Diatomaceous earth (206) is arranged inside the auxiliary filter housing (2), and glass fiber cloth (208) is arranged below the diatomaceous earth (206).

5. The multi-stage multi-media filter according to claim 1, characterized in that: A feed box (3) is installed above the main filter housing (1), and the feed box (3) is sealedly connected to the circulation pipe (201).

6. A multi-stage multi-media filter according to claim 5, characterized in that: A feed pipe (301) is installed above the feed box (3), and a water guide pipe (302) is installed at the lower end of the feed pipe (301), and a one-way valve (303) is installed below the water guide pipe (302).

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