Environment-friendly double valve filter tank

Abstract

The utility model discloses a kind of environmental protection double-valve filter tank, it is related to backwash equipment technical field.The environmental protection double-valve filter tank, the water inlet pipe is fixedly connected on one side of filter tank, the water outlet pipe is fixedly connected on one side of filter tank, the inside fixedly connected with filter device of filter tank, the bottom fixedly connected with second filter screen of filter device, valve is rotatably connected on water inlet pipe and water outlet pipe, the bottom of filter device and filter tank is fixedly connected with support frame respectively.The environmental protection double-valve filter tank, when needing recycling, close the valve on water injection pipe, can open the valve on return pipe and connecting pipe, start pressurizing pump, filtered water in sink is sent into filter tank again through return pipe, pressurizing pump, connecting pipe, as backwash supplementary water source, reduce fresh water consumption, simultaneously utilize sink and first filter screen to realize sewage resource, reduce waste water discharge, form the closed-loop environmental protection system of filtration-cleaning-reuse, significantly improve the operation efficiency and environmental protection performance of filter tank.

Description

Technical Field

[0001] This utility model relates to the technical field of backwashing equipment, and in particular to an environmentally friendly dual-valve filter. Background Technology

[0002] Patent application number CN202223042941.0 discloses an environmentally friendly and energy-saving sewage treatment filter. In this technical solution, a sewage discharge channel is set on one side of the top of the filter body, and a sewage discharge inlet is connected to one end of the sewage discharge channel. The filter body is fixed with filter plates and other structures to solve the problem that sewage needs to be discharged into the sewage treatment filter for preliminary filtration before subsequent sewage treatment. The power consumption of the later sewage treatment is large. The existing technology lacks a sewage treatment tank that can generate electricity and save energy. However, this solution lacks a backwashing cleaning mechanism specifically for the filter media layer.

[0003] During long-term operation, the filter media layer will continuously trap suspended impurities, colloidal particles and other pollutants in the raw water. As impurities accumulate, the pores of the filter media gradually become blocked, leading to increased filtration resistance and decreased effluent flow, which seriously affects filtration efficiency and water quality. At this time, the operator needs to shut down the filter tank for maintenance and clean it by manually disassembling the filter media layer. This is not only cumbersome and labor-intensive, but it also interrupts the continuous operation of the water treatment system and increases operation and maintenance costs.

[0004] Furthermore, the wastewater generated during the cleaning process of existing filters, as well as the occasional sewage discharge during the filtration stage, is usually discharged directly to the outside. Although this wastewater contains a large number of impurities, there are still water resources that can be recycled. Direct discharge not only causes serious waste of water resources, but may also pollute the surrounding environment due to excessive pollutants in the wastewater. Although some improved filters have added simple sewage discharge pipes, they can only achieve directional discharge of wastewater and cannot perform deep filtration treatment of wastewater. They also do not have the function of returning the treated reclaimed water to the filter backwashing system, which means that the backwashing process still consumes a large amount of clean water, which is contrary to the current concept of energy-saving and environmentally friendly water treatment. Utility Model Content

[0005] The purpose of this utility model is to solve at least one of the technical problems existing in the prior art, and to provide an environmentally friendly dual-valve filter that can solve the above-mentioned problems.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an environmentally friendly dual-valve filter, comprising a filter, an inlet pipe fixedly connected to one side of the filter, an outlet pipe fixedly connected to one side of the filter, a filter device fixedly connected inside the filter, a second filter screen fixedly connected to the bottom of the filter device, valves rotatably connected to the inlet pipe and the outlet pipe respectively, and a support frame fixedly connected to the bottom of the filter device and the filter.

[0007] A connecting pipe is fixedly connected to the bottom of the filter tank. A pressure pump is fixedly connected to one end of the connecting pipe. A water injection pipe is fixedly connected to one side of the pressure pump. A return pipe is fixedly connected to the other side of the pressure pump. Valves are rotatably connected to the connecting pipe, the water injection pipe, and the return pipe.

[0008] Preferably, the inlet pipe and the outlet pipe pass through one side of the filter tank, and one end of the inlet pipe is fixedly connected to the filter device.

[0009] Preferably, a drain pipe is fixedly connected to the other side of the filter tank. The drain pipe is in the shape of a "7", and one end of the drain pipe is fixedly connected to the filter device, while the other end of the drain pipe is rotatably connected to a valve.

[0010] Preferably, one end of the return pipe is fixedly connected to a water tank, a fixed frame is slidably connected inside the water tank, a first filter screen is fixedly connected inside the fixed frame, and a support frame is fixedly connected to the bottom of the water tank.

[0011] Preferably, the fixing frame and the water tank are slidably connected.

[0012] Preferably, a second filter screen is fixedly connected to the bottom of the filtering device.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] (1) When the environmentally friendly dual-valve filter needs to be recycled, the valve on the water injection pipe is closed, and the valves on the return pipe and the connecting pipe are opened. The booster pump is started, and the filtered water in the water tank is sent back into the filter tank through the return pipe, the booster pump and the connecting pipe as a supplementary water source for backwashing, reducing the consumption of clean water. At the same time, the fixing frame can slide along the water tank, which facilitates the disassembly, cleaning or replacement of the first filter screen. This design enhances the backwashing force through the booster pump, improves the sewage discharge effect by combining the structure optimization of the sewage pipe, and realizes the resource utilization of sewage by using the water tank and the first filter screen, reducing wastewater discharge and forming a closed-loop environmental protection system of filtration-cleaning-reuse, which significantly improves the operating efficiency and environmental performance of the filter tank.

[0015] (2) When the raw water needs to be filtered, the raw water to be treated is transported to the filter tank through the inlet pipe. At this time, the operator opens the valve on the inlet pipe to control the inlet flow rate. The raw water flows in continuously through the inlet pipe under pressure. Since one end of the inlet pipe is fixedly connected to the filter device, the raw water directly enters the filter device. The second filter screen inside the filter device will intercept and adsorb pollutants such as suspended impurities and colloidal particles in the raw water, thereby completing the purification process. The purified water is discharged from the outlet pipe. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0017] Figure 1 This is a schematic diagram of the environmentally friendly dual-valve filter tank of this utility model;

[0018] Figure 2 This is a cross-sectional view of the environmentally friendly dual-valve filter tank of this utility model;

[0019] Figure 3 This is a partial schematic diagram of the environmentally friendly dual-valve filter tank of this utility model;

[0020] Figure 4 This is a partial sectional view of the environmentally friendly dual-valve filter tank of this utility model.

[0021] Reference numerals in the attached drawings: 1. Filter tank; 2. Inlet pipe; 3. Valve; 4. Outlet pipe; 5. Support frame; 6. Injection pipe; 7. Booster pump; 8. Return pipe; 9. Water tank; 10. First filter screen; 11. Sewage pipe; 12. Second filter screen; 13. Filtration device; 14. Connecting pipe; 15. Fixing frame. Detailed Implementation

[0022] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0023] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0024] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of terms like "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the quantity or sequence of the indicated technical features.

[0025] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0026] Please see Figure 1-4This utility model provides a technical solution: an environmentally friendly dual-valve filter, including a filter tank 1, an inlet pipe 2 fixedly connected to one side of the filter tank 1, an outlet pipe 4 fixedly connected to one side of the filter tank 1, a filter device 13 fixedly connected inside the filter tank 1, a second filter screen 12 fixedly connected to the bottom of the filter device 13, valves 3 rotatably connected to the inlet pipe 2 and the outlet pipe 4 respectively, and support frames 5 fixedly connected to the bottom of the filter device 13 and the filter tank 1 respectively.

[0027] The inlet pipe 2 and the outlet pipe 4 pass through one side of the filter tank 1, and one end of the inlet pipe 2 is fixedly connected to the filter device 13.

[0028] When raw water needs to be filtered, the raw water to be treated is transported to the filter tank 1 through the inlet pipe 2. At this time, the operator opens the valve 3 on the inlet pipe 2 to control the inlet flow rate. The raw water flows continuously through the inlet pipe 2 under pressure. Since one end of the inlet pipe 2 is fixedly connected to the filter device 13, the raw water directly enters the filter device 13.

[0029] The second filter 12 inside the filter device 13 will intercept and adsorb pollutants such as suspended impurities and colloidal particles in the raw water, thereby completing the purification process. The purified water is discharged from the outlet pipe 4.

[0030] Furthermore, a sewage pipe 11 is fixedly connected to the other side of the filter tank 1, a connecting pipe 14 is fixedly connected to the bottom of the filter tank 1, a booster pump 7 is fixedly connected to one end of the connecting pipe 14, a water injection pipe 6 is fixedly connected to one side of the booster pump 7, and a return pipe 8 is fixedly connected to the other side of the booster pump 7.

[0031] One end of the return pipe 8 is fixedly connected to a water tank 9, a fixed frame 15 is slidably connected inside the water tank 9, a first filter screen 10 is fixedly connected inside the fixed frame 15, and a support frame 5 is fixedly connected to the bottom of the water tank 9.

[0032] The drain pipe 11 is shaped like a "7", and one end of the drain pipe 11 is fixedly connected to the filter device 13. The other end of the drain pipe 11 is rotatably connected to a valve 3. Valves 3 are rotatably connected to the connecting pipe 14, the water injection pipe 6, and the return pipe 8, respectively.

[0033] When the filter device 13 needs backwashing, close the valves 3 of the inlet pipe 2 and the outlet pipe 4 to cut off the raw water inlet and clean water outlet. Then, open the valves 3 on the connecting pipe 14, the water injection pipe 6 and the sewage discharge pipe 11, and start the booster pump 7. External clean water enters the booster pump 7 through the water injection pipe 6. After being pressurized, it is transported to the bottom of the filter tank 1 through the connecting pipe 14. The water flow impacts the filter media layer of the filter device 13 in the opposite direction, stripping away the trapped impurities. The sewage containing impurities is discharged from the filter device 13 through the "7"-shaped sewage discharge pipe 11 and discharged under the control of the valve 3 on the sewage discharge pipe 11, thus achieving efficient cleaning of the filter media layer.

[0034] After the wastewater enters the water tank 9, it undergoes secondary filtration by the first filter screen 10 supported by the fixed frame 15, which traps the residual suspended impurities in the wastewater. The preliminarily purified water is temporarily stored in the water tank 9. When it needs to be recycled, the valve 3 on the water inlet pipe 6 is closed, and the valve 3 on the return pipe 8 and the connecting pipe 14 is opened. The booster pump 7 is started, and the filtered water in the water tank 9 is sent back into the filter tank 1 through the return pipe 8, the booster pump 7, and the connecting pipe 14 as a supplementary water source for backwashing, reducing the consumption of clean water. At the same time, the fixed frame 15 can slide along the water tank 9, which facilitates the disassembly, cleaning, or replacement of the first filter screen 10. During the entire process, the water in the water tank 9 enters the filter tank 1 through the path of return pipe 8 → booster pump 7 → connecting pipe 14 with the help of the booster pump 7. This not only realizes the backwashing function, but also reduces the consumption of clean water through wastewater reuse, reflecting the concept of environmental protection design.

[0035] The above-mentioned filtration device is used for filtering domestic drinking water. The first filter screen 10 and the second filter screen 12 are preferably made of quartz sand and activated carbon. The filter device 13 is made of stainless steel to balance safety and filtration effect. This design enhances the backwashing force through the pressure pump 7 and improves the sewage discharge effect by combining the structure optimization of the sewage pipe 11. At the same time, the water tank 9 and the first filter screen 10 are used to realize the resource utilization of sewage, reduce wastewater discharge, and form a closed-loop environmental protection system of filtration-cleaning-reuse, which significantly improves the operating efficiency and environmental performance of the filter tank 1.

[0036] Working principle: When raw water needs to be filtered, the raw water to be treated is transported to the filter tank 1 through the inlet pipe 2. At this time, the operator opens the valve 3 on the inlet pipe 2 to control the inlet flow rate. The raw water flows continuously through the inlet pipe 2 under pressure. Since one end of the inlet pipe 2 is fixedly connected to the filter device 13, the raw water directly enters the filter device 13.

[0037] The second filter 12 inside the filter device 13 will intercept and adsorb pollutants such as suspended impurities and colloidal particles in the raw water, thereby completing the purification process. The purified water is discharged from the outlet pipe 4.

[0038] When the filter device 13 needs backwashing, close the valves 3 of the inlet pipe 2 and the outlet pipe 4 to cut off the raw water inlet and clean water outlet. Then, open the valves 3 on the connecting pipe 14, the water injection pipe 6 and the sewage discharge pipe 11, and start the booster pump 7. External clean water enters the booster pump 7 through the water injection pipe 6. After being pressurized, it is transported to the bottom of the filter tank 1 through the connecting pipe 14. The water flow impacts the filter media layer of the filter device 13 in the opposite direction, stripping away the trapped impurities. The sewage containing impurities is discharged from the filter device 13 through the "7"-shaped sewage discharge pipe 11 and discharged under the control of the valve 3 on the sewage discharge pipe 11, thus achieving efficient cleaning of the filter media layer.

[0039] After the wastewater enters the water tank 9, it undergoes secondary filtration by the first filter screen 10 supported by the fixed frame 15, which traps residual suspended impurities in the wastewater. The preliminarily purified water is temporarily stored in the water tank 9. When recycling is required, the valve 3 on the water inlet pipe 6 is closed, and the valves 3 on the return pipe 8 and the connecting pipe 14 are opened. The booster pump 7 is then started, and the filtered water in the water tank 9 is sent back into the filter tank 1 through the return pipe 8, the booster pump 7, and the connecting pipe 14 as a supplementary water source for backwashing, reducing the consumption of clean water. At the same time, the fixed frame 15 can slide along the water tank 9, which facilitates the disassembly, cleaning, or replacement of the first filter screen 10. This design enhances the backwashing force through the booster pump 7 and improves the sewage discharge effect by combining the structural optimization of the sewage pipe 11. At the same time, the water tank 9 and the first filter screen 10 realize the resource utilization of wastewater, reduce wastewater discharge, and form a closed-loop environmental protection system of filtration-cleaning-reuse, which significantly improves the operating efficiency and environmental performance of the filter tank 1.

[0040] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. An environmentally friendly dual-valve filter, comprising a filter (1), characterized in that: A water inlet pipe (2) is fixedly connected to one side of the filter pool (1), a water outlet pipe (4) is fixedly connected to one side of the filter pool (1), a filter device (13) is fixedly connected inside the filter pool (1), and a second filter screen (12) is fixedly connected to the bottom of the filter device (13). A connecting pipe (14) is fixedly connected to the bottom of the filter tank (1). A pressure pump (7) is fixedly connected to one end of the connecting pipe (14). A water injection pipe (6) is fixedly connected to one side of the pressure pump (7). A return pipe (8) is fixedly connected to the other side of the pressure pump (7).

2. The environmentally friendly dual-valve filter according to claim 1, characterized in that: The inlet pipe (2) and outlet pipe (4) pass through one side of the filter tank (1) respectively, and one end of the inlet pipe (2) is fixedly connected to the filter device (13).

3. The environmentally friendly dual-valve filter according to claim 2, characterized in that: A drain pipe (11) is fixedly connected to the other side of the filter (1). The drain pipe (11) is in the shape of a "7". One end of the drain pipe (11) is fixedly connected to the filter device (13), and the other end of the drain pipe (11) is rotatably connected to a valve (3).

4. The environmentally friendly dual-valve filter according to claim 3, characterized in that: One end of the return pipe (8) is fixedly connected to a water tank (9), a fixed frame (15) is slidably connected inside the water tank (9), a first filter screen (10) is fixedly connected inside the fixed frame (15), and a support frame (5) is fixedly connected to the bottom of the water tank (9).

5. The environmentally friendly dual-valve filter according to claim 4, characterized in that: The fixed frame (15) and the water tank (9) are slidably connected.

6. The environmentally friendly dual-valve filter according to claim 5, characterized in that: The bottom of the filter device (13) is fixedly connected to a second filter screen (12).

7. The environmentally friendly dual-valve filter according to claim 6, characterized in that: Valves (3) are rotatably connected to the inlet pipe (2), outlet pipe (4), connecting pipe (14), injection pipe (6), and return pipe (8).

8. An environmentally friendly dual-valve filter according to claim 7, characterized in that: The bottom of the filter device (13) and the filter tank (1) are respectively fixedly connected to the support frame (5).

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