Double-cavity homologous backwashing multiplication filtering device

Abstract

The utility model discloses a double-cavity homologous backwashing multiplication filtering device, which belongs to the technical field of filtering equipment and comprises a filter body, a raw water inlet pipe, a sewage outlet pipe and a purified water outlet pipe, the inside of the filter body is divided into a left cavity and a right cavity by a partition plate, and a first liquid inlet / outlet and a second liquid inlet / outlet are arranged at the bottom of the filter body. The first liquid inlet and outlet is communicated with the left cavity, the second liquid inlet and outlet is communicated with the right cavity, and a third liquid inlet and outlet is formed in the top of the filter body. The left filter cavity and the right filter cavity are arranged in the filter body, and two groups of backwash are formed between the electromagnetic valves, so that the backwash intensity is multiplied and the backwash effect is improved under the condition of one filter pump.

Description

Technical Field

[0001] The utility model relates to filtering equipment, in particular to a double-cavity homologous backwash multiplication filtering device. Background Art

[0002] The structure of traditional mechanical filter is as follows Figure 2 As shown, during normal filtration, the first and fourth electric valves are open, while the second and third electric valves are closed. Raw water passes through the first electric valve, then flows from the top of the filter through the filter layer, out the bottom of the filter, and then out through the fourth electric valve, completing the filtration process. When the control cabinet receives a backwash signal, the first and fourth electric valves close, and the second and third electric valves open. Raw water now enters the bottom of the filter through the third electric valve, passes through the filter layer, and out the top, then exits the filter through the second electric valve, completing the backwash process. This shows that without an additional filter pump, the flow cross-sections for filtration and backwash are equal, meaning the filtration and backwash intensities are the same. However, according to research data, to achieve ideal backwash performance, the backwash intensity should be approximately twice the filtration intensity. Existing mechanical filter structures cannot achieve ideal backwash performance. Utility Model Content

[0003] The purpose of the utility model is to provide a double-cavity homologous backwash multiplication filtering device.

[0004] The technical solution of the utility model is: a double-cavity homologous backwash multiplier filtration device, including a filter body, a raw water inlet pipe, a sewage outlet pipe, and a clean water outlet pipe. The filter body is divided into a left cavity and a right cavity by a partition. The bottom of the filter body is provided with a first liquid inlet and a second liquid inlet and a outlet, the first liquid inlet and an outlet are connected to the left cavity, the second liquid inlet and an outlet are connected to the right cavity, and the top of the filter body is provided with a third liquid inlet and an outlet.

[0005] A further technical solution is that a filter pump is provided at the end of the raw water inlet pipe; the sewage outlet pipe is connected to the third liquid inlet and outlet, and the first liquid inlet and outlet and the second liquid inlet and outlet are respectively connected to the clean water outlet pipe.

[0006] In a further technical solution, the raw water inlet pipe is connected to the third liquid inlet and outlet through a first electric valve; the third liquid inlet and outlet are connected to the sewage outlet pipe through a second electric valve;

[0007] The raw water inlet pipe is connected to the second liquid inlet and outlet through the third electric valve; the second liquid inlet and outlet are connected to the purified water outlet pipe through the fourth electric valve;

[0008] The raw water inlet pipe is connected to the first liquid inlet and outlet through the fifth electric valve; the first liquid inlet and outlet is connected to the clean water outlet pipe through the sixth electric valve.

[0009] Beneficial effects of the utility model:

[0010] The utility model provides a filter body with a left filter chamber and a right filter chamber, and utilizes electromagnetic valves to form two groups of backwashing, thereby achieving double the backwashing intensity under the condition of one filter pump and improving the backwashing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the structure of the utility model

[0012] Figure 2 It is a structural diagram of a mechanical filter in the prior art.

[0013] Among them, 1. filter body, 2. left chamber, 3. right chamber, 4. raw water inlet pipe, 5. sewage outlet pipe, 6. clean water outlet pipe, 7. first liquid inlet and outlet, 8. second liquid inlet and outlet, 9. third liquid inlet and outlet, 10. filter pump, 11. first electric valve, 12. second electric valve, 13. third electric valve, 14. fourth electric valve, 15. fifth electric valve, 16. sixth electric valve. DETAILED DESCRIPTION

[0014] The present invention will be further described and understood below through non-limiting examples.

[0015] like Figure 1 As shown, the utility model provides a dual-cavity homologous backwash multiplier filtration device, including a filter body 1, a raw water inlet pipe 4, a sewage outlet pipe 5, and a clean water outlet pipe 6. The filter body 1 is divided into a left cavity 2 and a right cavity 3 by a partition. A first liquid inlet and outlet 7 and a second liquid inlet and outlet 8 are provided at the bottom of the filter body 1. The first liquid inlet and outlet 7 is connected to the left cavity 2, and the second liquid inlet and outlet 8 is connected to the right cavity 3. A third liquid inlet and outlet 9 is provided at the top of the filter body 1.

[0016] A filter pump 10 is provided at the end of the raw water inlet pipe 4; the sewage outlet pipe 5 is connected to the third liquid inlet and outlet 9, and the first liquid inlet and outlet 7 and the second liquid inlet and outlet 8 are respectively connected to the purified water outlet pipe 6.

[0017] The raw water inlet pipe 4 is connected to the third liquid inlet and outlet 9 through the first electric valve 11; the third liquid inlet and outlet 9 is connected to the sewage outlet pipe 5 through the second electric valve 12;

[0018] The raw water inlet pipe 4 is connected to the second liquid inlet and outlet 8 through the third electric valve 13; the second liquid inlet and outlet 8 is connected to the purified water outlet pipe 6 through the fourth electric valve 14;

[0019] The raw water inlet pipe 4 is connected to the first liquid inlet and outlet 7 through a fifth electric valve 15 ; the first liquid inlet and outlet 7 is connected to the purified water outlet pipe 6 through a sixth electric valve 16 .

[0020] During normal filtration, the first electric valve 11, the fourth electric valve 14, and the sixth electric valve 16 are opened, and the second electric valve 12, the third electric valve 13, and the fifth electric valve 15 are closed. After passing through the first electric valve 11, the raw water enters the filter body 1 from the third liquid inlet and outlet 9 on the upper part of the filter body 1. After being filtered through the filter material layer in the filter body 1, it flows out from the first liquid inlet and outlet 7 or the second liquid inlet and outlet 8 of the filter body 1, and then flows out through the fourth electric valve 14 and the sixth electric valve 16 through the clean water outlet pipe 6, completing the filtration process.

[0021] When the control cabinet receives the backwash signal:

[0022] First, backwash the left chamber 2. At this time, the second electric valve 12 and the fifth electric valve 15 are opened, and the first electric valve 11, the third electric valve 13, the fourth electric valve 14, and the sixth electric valve 16 are closed. At this time, the raw water enters the first liquid inlet and outlet 7 at the lower part of the filter body 1 through the fifth electric valve 15, passes through the left half of the inner filter layer of the filter body 1, and then flows out from the third liquid inlet and outlet 9 at the upper part. After passing through the second electric valve 12, it is discharged from the filter body 1 through the sewage outlet pipe 5, completing the backwash process.

[0023] Then backwash the right chamber 3. At this time, the second electric valve 12 and the third electric valve 13 are opened, and the first electric valve 11, the fifth electric valve 15, the fourth electric valve 14 and the sixth electric valve 16 are closed. At this time, the raw water enters the second liquid inlet and outlet 8 at the lower part of the filter through the third electric valve 13, passes through the right half of the filter layer in the filter body 1, and flows out from the third liquid inlet and outlet 9 at the upper part. After passing through the second electric valve 12, it is discharged from the filter body 1 through the sewage outlet pipe 5, completing the backwash process.

[0024] It can be seen from this that, when there is no additional filter pump 10, the flow cross section during backwashing is half of the filtration cross section during filtration, that is, the backwash intensity is twice the filtration intensity.

[0025] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A dual-chamber homologous backwash multiplication filtration device, characterized by: It includes a filter body, a raw water inlet pipe, a sewage outlet pipe, and a clean water outlet pipe. The filter body is divided into a left cavity and a right cavity by a partition. The bottom of the filter body is provided with a first liquid inlet and a second liquid inlet and a second liquid inlet. The first liquid inlet and the outlet are connected to the left cavity, and the second liquid inlet and the outlet are connected to the right cavity. The top of the filter body is provided with a third liquid inlet and the outlet.

2. A dual-chamber homologous backwash multiplication filtration device according to claim 1, characterized in that: A filter pump is provided at the end of the raw water inlet pipe; the sewage outlet pipe is connected to the third liquid inlet and outlet, and the first liquid inlet and outlet and the second liquid inlet and outlet are respectively connected to the purified water outlet pipe.

3. The dual-chamber homologous backwash multiplication filtration device according to claim 1, characterized in that: The raw water inlet pipe is connected to the third liquid inlet and outlet through the first electric valve; the third liquid inlet and outlet are connected to the sewage outlet pipe through the second electric valve; The raw water inlet pipe is connected to the second liquid inlet and outlet through the third electric valve; the second liquid inlet and outlet are connected to the purified water outlet pipe through the fourth electric valve; The raw water inlet pipe is connected to the first liquid inlet and outlet through the fifth electric valve; the first liquid inlet and outlet is connected to the clean water outlet pipe through the sixth electric valve.

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