Efficient fiber filtering equipment for rainwater purification

Abstract

The utility model discloses high-efficiency fiber filtering equipment for rainwater purification, which relates to the field of filtering and comprises a perforated movable plate, a pre-filtering water pressing area is arranged above the perforated movable plate, and a pre-filtering water pressing area is arranged above the pre-filtering water pressing area. The utility model has the beneficial effects that a set of fiber density adjusting device and a fixed partition plate with a filter cap are designed and mounted, the fiber density adjusting device is a polyvinyl chloride (PVC) movable plate with holes, and one end of a fiber bundle of a fiber filter material layer is fixed on the adjusting device; a filter cap is mounted on the fixed partition plate, and the partition plate separates the filter area from the filtered water storage area, so that the backwash water distribution amount is ensured to be uniform and stable, pollutants such as turbidity, COD (Chemical Oxygen Demand), total nitrogen, total phosphorus, ammonia nitrogen and the like in runoff rainwater can be effectively removed, and the treated rainwater can meet the requirement of direct discharge or reuse; the device has the advantages of high filtering precision, small occupied area, small filtering resistance, low power consumption, simplicity in operation, low labor intensity and the like.

Description

Technical Field

[0001] The utility model relates to the field of filtration, in particular to a high-efficiency fiber filtration device used for rainwater purification. Background Art

[0002] As the proportion of non-permeable ground areas such as urban roads, squares, and parking lots continues to increase, the peak value of rainwater runoff in urban areas has increased significantly and the outflow time has shortened.

[0003] If we study rainwater utilization methods with rainwater storage, rainwater infiltration and rainwater treatment as the main links, we can reduce rainwater runoff, reduce flood peaks, improve urban flood control capabilities, reduce investment in municipal drainage networks, alleviate urban water resource shortages, reduce water pollution and improve urban ecological environment, thereby bringing huge social and economic benefits and ecological prospects. Utility Model Content

[0004] The purpose of the utility model is to provide a high-efficiency fiber filtering device for rainwater purification to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A high-efficiency fiber filtration device for rainwater purification comprises a perforated movable plate, a pre-filtration water pressing area is located above the perforated movable plate, a fiber filter material layer is arranged below the perforated movable plate, a fixed partition is arranged below the fiber filter material layer, a plurality of filter caps are arranged on the fixed partition, and a post-filtration water storage area is located below the fixed partition.

[0007] As a further solution of the utility model: a water inlet pipe and a backwashing drain pipe are arranged in the water pressure area before filtration.

[0008] As a further solution of the utility model: a water outlet pipe and a backwashing air inlet pipe are arranged at the water storage area after filtration, and the water outlet pipe serves as a backwashing water inlet pipe during backwashing.

[0009] As a further solution of the utility model: the water pressure zone before filtration is provided with a sampling port, and the fiber filter material layer is provided with a sampling port.

[0010] As a further solution of the utility model: the fiber filter material layer is provided with a plurality of sampling ports.

[0011] Compared with the prior art, the utility model has the following beneficial effects: the utility model is designed and installed with a set of fiber density adjustment device and a fixed partition with a filter cap, the fiber density adjustment device is a PVC movable plate with holes, and one end of the fiber bundle of the fiber filter material layer is fixed on the adjustment device; a filter cap is installed on the fixed partition, and the partition separates the filtration area and the post-filtration water storage area, which is conducive to ensuring that the backwash water distribution volume is uniform and stable, and can effectively remove pollutants such as turbidity, COD, total nitrogen, total phosphorus and ammonia nitrogen in the runoff rainwater, so that the treated rainwater can meet the requirements of direct discharge or reuse, and has the advantages of high filtration accuracy, small footprint, small filtration resistance, low power consumption, simple operation, low labor intensity, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the structure of a high-efficiency fiber filtration device for rainwater purification.

[0013] In the figure: 1-perforated movable plate, 2-water pressure area before filtration, 3-fiber filter material layer, 4-fixed partition, 5-filter cap, 6-water storage area after filtration, 7-water inlet pipe, 8-backwash drain pipe, 9-water outlet pipe, 10-backwash air inlet pipe, 11-sampling port. DETAILED DESCRIPTION

[0014] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0015] See also Figure 1 A high-efficiency fiber filtering device for rainwater purification includes a perforated movable plate 1, a pre-filtration water pressure area 2 is located above the perforated movable plate 1, a fiber filter material layer 3 is arranged below the perforated movable plate 1, a fixed partition plate 4 is arranged below the fiber filter material layer 3, a plurality of filter caps 5 are arranged on the fixed partition plate 4, and a post-filtration water storage area 6 is located below the fixed partition plate 4.

[0016] In the specific embodiment: please refer to Figure 1 One end of the fiber bundle filter material of the fiber filter material layer 3 is fixed on the PVC perforated movable plate 1. Under the action of water flow and gravity, the PVC perforated movable plate 1 pushes the fiber bundle downward, so that the porosity of the filter layer along the water flow direction gradually decreases from large to small, thus forming a particularly ideal variable porosity deep filtration state. The filter cap 5 is installed on the fixed partition 4 to evenly distribute the backwash water and air intake. The fiber filter material is corrosion-resistant, high-temperature-resistant, and anti-oxidation, and is suitable for the precision filtration of various acids, alkalis, salts, and various organic solvents; it has high filtration efficiency and can be pressed or filtered.

[0017] In this example: See Figure 1 A water inlet pipe 7 and a backwash drain pipe 8 are provided at the pre-filtration water pressure area 2.

[0018] The water inlet pipe 7 is used to introduce water to be filtered, and the backwashing drain pipe 8 is used to discharge the flushing water when flushing the equipment.

[0019] In this example: See Figure 1 The filtered water storage area 6 is provided with a water outlet pipe 9 and a backwashing air inlet pipe 10. The water outlet pipe 9 serves as a backwashing water inlet pipe 7 during backwashing.

[0020] The filtered water in the filtered water storage area 6 flows out through the outlet pipe 9; when the equipment is clean and needs to be flushed, the outlet pipe 9 is used as the backwash water inlet pipe 7 to introduce flushing water, and the backwash air inlet pipe 10 introduces flushing gas. The flushing water and flushing gas pass through the filtered water storage area 6, the fixed partition 4, the fiber filter material layer 3, the PVC perforated movable plate 1, the pre-filtration water pressure area 2, and finally flow out through the backwash drain pipe 8.

[0021] In this example: See Figure 1 The pre-filtration water pressure zone 2 is provided with a sampling port 11, and the fiber filter material layer 3 is provided with a sampling port 11.

[0022] In this example: See Figure 1 The fiber filter material layer 3 is provided with a plurality of sampling ports 11 .

[0023] A sampling port 11 is provided to sample water and detect the filtering effect.

[0024] The working principle of the utility model is as follows: the water to be filtered is introduced through the water inlet pipe 7, reaches the pre-filter water pressure area 2, and then reaches the fiber filter material layer 3 through the perforated movable plate 1. Under the action of water flow and gravity, the PVC perforated movable plate 1 pushes the fiber bundle downward, so that the porosity of the filter layer along the water flow direction gradually decreases from large to small, thereby forming a particularly ideal variable porosity deep filtration state. The filter cap 5 is installed on the fixed partition plate 4 to evenly distribute the backwash water and air intake; the filtered water is finally discharged through the outlet in the post-filter water storage area 6.

[0025] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, the embodiments should be considered as exemplary and non-restrictive in all respects.

[0026] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A high-efficiency fiber filtration device for rainwater purification, characterized in that: The high-efficiency fiber filtration equipment for rainwater purification includes a perforated movable plate, a pre-filtration water pressing area is above the perforated movable plate, a fiber filter material layer is arranged below the perforated movable plate, a fixed partition is arranged below the fiber filter material layer, a plurality of filter caps are arranged on the fixed partition, and a post-filtration water storage area is arranged below the fixed partition.

2. The high-efficiency fiber filtration device for rainwater purification according to claim 1 is characterized in that: The water pressure area before filtration is provided with a water inlet pipe and a backwashing drain pipe.

3. The high-efficiency fiber filtration device for rainwater purification according to claim 1, characterized in that: A water outlet pipe and a backwash air inlet pipe are arranged at the water storage area after filtration, and the water outlet pipe serves as a backwash water inlet pipe during backwashing.

4. The high-efficiency fiber filtration device for rainwater purification according to claim 1, characterized in that: The water pressure zone before filtration is provided with a sampling port, and the fiber filter material layer is provided with a sampling port.

5. The high-efficiency fiber filtration device for rainwater purification according to claim 4, characterized in that: The fiber filter material layer is provided with a plurality of sampling ports.

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