Multi-stage filtration treatment device for drinking water

Abstract

The utility model relates to a multi-stage filtering treatment device for drinking water, which comprises a water inlet header pipe, a water outlet header pipe, a water pump, a Y-shaped filter, a filter cartridge, a filler layer, a support filter screen and a water outlet branch pipe, the water inlet branch pipe, the water outlet branch pipe and the water inlet branch pipe are respectively provided with a gas outlet pipe and a backwashing water outlet pipe, and the upper part and the lower part of the filler layer are respectively provided with a backwashing spray pipe and a steam distributor. The backwashing spray pipe is connected with a backwashing water inlet pipe, the steam distributor is connected with a steam inlet pipe, and the steam inlet pipe is connected with a steam conveying pipe. According to the utility model, the backwashing spray pipe and the steam distributor are respectively arranged above and below the filler layer in the filter cartridge, the backwashing spray pipe is connected with the backwashing water inlet pipe, and the steam distributor is connected with the steam inlet pipe, so that after the filler layer is used for a period of time, backwashing water can be introduced to wash the filler layer, filter material regeneration is carried out, and the filtering effect is recovered; and steam is introduced for steam washing after backwashing, so that steam washing sterilization is realized, and the device is cleaner.

Description

Technical Field

[0001] The utility model relates to a multi-stage filtering and processing device for drinking water, belonging to the technical field of filtering and processing equipment. Background Art

[0002] Before drinking water is delivered to users through the water supply network, it needs to be filtered to remove impurities in the water, making the water purer and better for users. The current filtration treatment device first installs a Y-type filter on the water inlet main pipe, then sets up multiple parallel filter cartridges, and then sets a packing layer in the filter cartridge to perform a second filtration to achieve multi-stage filtration. However, the packing layer in the current filter cartridge will reduce the filtration effect after long-term use. The current treatment method is to replace the packing layer, but this is more troublesome and increases labor intensity. Utility Model Content

[0003] The utility model provides a multi-stage filtering treatment device for drinking water, which solves the problem that the packing layer in the current filter cartridge will reduce the filtering treatment effect after long-term use. The current treatment method is to replace the packing layer, but this is more troublesome and increases labor intensity.

[0004] The utility model relates to a multi-stage filtering treatment device for drinking water, comprising a water inlet main pipe and a water outlet main pipe, wherein the water inlet main pipe is provided with a water pump and a Y-type filter, a plurality of filter cartridges are connected in parallel between the water inlet main pipe and the water outlet main pipe, the filter cartridge is fixed with a bracket, a filler layer is provided in the filter cartridge, support filter screens are provided above and below the filler layer, a water outlet branch pipe and a water inlet branch pipe are provided at the top and bottom of the filter cartridge respectively, an air outlet pipe and a backwash outlet pipe are provided on the water outlet branch pipe and the water inlet branch pipe respectively, a backwash nozzle and a steam distributor are provided above and below the filler layer respectively, the backwash nozzle is connected with a backwash water inlet pipe, the steam distributor is connected with a steam inlet pipe, the steam inlet pipe is connected with a steam delivery pipe, the backwash water inlet pipe is connected with a backwash water delivery pipe, and valves are provided on the water inlet main pipe, the water outlet branch pipe, the water inlet branch pipe, the air outlet pipe, the backwash outlet pipe, the backwash water inlet pipe, the steam inlet pipe, the backwash water delivery pipe and the steam delivery pipe.

[0005] As a preferred embodiment, a limiting ring is provided at the outer end of the supporting filter to conveniently support and limit the supporting filter.

[0006] As a preferred embodiment, the backwash nozzle is vortex-shaped, and a plurality of backwash nozzle holes are provided at the bottom of the backwash nozzle, which can evenly distribute the washing liquid and increase the washing effect. The steam distributor includes a hemispherical distribution ball, and the outer wall of the distribution ball is evenly provided with distribution air holes. The bottom of the distribution ball is fixedly connected to the steam inlet pipe, and a distribution orifice plate is fixed on the inner side of the bottom of the distribution ball, which can evenly distribute the steam and increase the steam washing effect.

[0007] As a preferred embodiment, a reinforcing rod is provided on the backwash nozzle to make the backwash nozzle more stable.

[0008] As a preferred embodiment, the backwash outlet pipe is connected to the output pipe, the output pipe is connected to the collecting box, the bottom of the collecting box is fixed with a discharge pipe, the air outlet pipe is connected to the air supply pipe, the air supply pipe is connected to the air distribution pipe, the air distribution pipe is arranged at the lower part of the collecting box, and the top of the air distribution pipe is provided with multiple air distribution holes, which can collect the liquid after washing to avoid disorderly discharge, and the steam discharged during steam washing can be passed into the collected washing liquid to heat the washing liquid and collect heat energy for convenient subsequent use.

[0009] The utility model has the following beneficial effects:

[0010] Backwash nozzles and steam distributors are respectively provided above and below the packing layer in the filter cartridge. The backwash nozzles are connected to the backwash water inlet pipe, and the steam distributor is connected to the steam inlet pipe. After the packing layer has been used for a period of time, backwash water can be introduced to flush the packing layer to regenerate the filter material and restore the filtering effect. After backwashing, steam can be introduced for steam washing to achieve steam washing and sterilization, making it cleaner. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural diagram of the utility model;

[0012] Figure 2 It is a structural diagram of the filter cartridge;

[0013] Figure 3 for Figure 2 Schematic diagram of the enlarged structure at A in the middle;

[0014] Figure 4 Schematic diagram of the bottom structure of the backwash nozzle;

[0015] In the figure: 1. water outlet main pipe, 2. water outlet branch pipe, 3. backwash water delivery pipe, 4. backwash water inlet pipe, 5. steam delivery pipe, 6. water inlet branch pipe, 7. Y-type filter, 8. water pump, 9. water inlet main pipe, 10. backwash outlet pipe, 11. output pipe, 12. air distribution pipe, 13. collection box, 14. steam inlet pipe, 15. bracket, 16. filter cartridge, 17. air delivery pipe, 18. air outlet pipe, 19. backwash nozzle, 20. support filter, 21. packing layer, 22. distribution ball, 23. distribution orifice plate. DETAILED DESCRIPTION

[0016] The present invention will be further described below with reference to the embodiments.

[0017] Example 1, as Figures 1 to 4As shown, the utility model is a multi-stage filtration treatment device for drinking water, including an inlet main pipe 9 and an outlet main pipe 1, a water pump 8 and a Y-type filter 7 are provided on the inlet main pipe 9, a plurality of filter cartridges 16 are connected in parallel between the inlet main pipe 9 and the outlet main pipe 1, the filter cartridge 16 is fixed with a bracket 15, a packing layer 21 is provided in the filter cartridge 16, and a support filter 20 is provided above and below the packing layer 21, the top and bottom of the filter cartridge 16 are respectively provided with an outlet branch pipe 2 and an inlet branch pipe 6, and an air outlet pipe 1 is provided on the outlet branch pipe 2 and the inlet branch pipe 6. 8 and backwash outlet pipe 10, a backwash nozzle 19 and a steam distributor are respectively provided above and below the packing layer 21, the backwash nozzle 19 is connected to the backwash water inlet pipe 4, the steam distributor is connected to the steam inlet pipe 14, the steam inlet pipe 14 is connected to the steam delivery pipe 5, the backwash water inlet pipe 4 is connected to the backwash water delivery pipe 3, and valves are provided on the water inlet main pipe 9, the water outlet main pipe 1, the water outlet branch pipe 2, the water inlet branch pipe 6, the air outlet pipe 18, the backwash outlet pipe 10, the backwash water inlet pipe 4, the steam inlet pipe 14, the backwash water delivery pipe 3 and the steam delivery pipe 5.

[0018] During the filtering process, the valves on the air outlet pipe 18, the backwash outlet pipe 10, the backwash water inlet pipe 4, the steam inlet pipe 14, the backwash water delivery pipe 3 and the steam delivery pipe 5 are closed, and the valves on the water inlet main pipe 9, the water outlet main pipe 1, the water outlet branch pipe 2 and the water inlet branch pipe 6 are opened. Water enters the water inlet main pipe 9 and passes through the Y-type filter 7 to filter out large impurities. Then, it enters the filter cartridge 16 through the water inlet branch pipe 6, and is filtered twice by the supporting filter screen 20 below in the filter cartridge 16. Then, it is filtered three times through the packing layer 21. The filtered water enters the water outlet main pipe 1 through the water outlet branch pipe 2 and is discharged. When backwashing is needed after a period of use, close the valves on the water outlet branch pipe 2 and the water inlet branch pipe 6 corresponding to the filter cartridge 16 that needs backwashing, then open the valves on the backwash outlet pipe 10 and the backwash water inlet pipe 4, and the backwash water is sprayed from the upper part of the filler from the backwash nozzle 19 for backwashing, and the backwash water is discharged from the backwash outlet pipe 10. After backwashing, close the valves on the backwash outlet pipe 10 and the backwash water inlet pipe 4, open the valves on the steam inlet pipe 14 and the air outlet pipe 18, and steam sterilize the filler and the supporting filter screen 20 in the filter cartridge 16. The gas is discharged from the air outlet pipe 18, and the condensed water flows downward. The valve on the backwash outlet pipe 10 is opened regularly to discharge the liquid, and then the backwashing and steam washing are completed, and the valves on the steam inlet pipe 14 and the air outlet pipe 18 are closed again, and the valves on the water outlet branch pipe 2 and the water inlet branch 6 are opened for filtering.

[0019] Example 2: Based on Example 1, a limiting ring is provided at the outer end of the supporting filter 20.

[0020] The backwash nozzle 19 is vortex-shaped, and a plurality of backwash nozzle holes are provided at the bottom of the backwash nozzle 19. The steam distributor includes a hemispherical distribution ball 22, and distribution air holes are evenly provided on the outer wall of the distribution ball 22. The bottom of the distribution ball 22 is fixedly connected to the steam inlet pipe 14, and a distribution orifice plate 23 is fixed on the inner side of the bottom of the distribution ball 22.

[0021] The backwash nozzle 19 is provided with a reinforcing rod.

[0022] The backwash outlet pipe 10 is connected to the output pipe 11, the output pipe 11 is connected to the collecting box 13, the bottom of the collecting box 13 is fixed with a discharge pipe, the air outlet pipe 18 is connected to the air supply pipe 17, the air supply pipe 17 is connected to the air distribution pipe 12, the air distribution pipe 12 is arranged at the lower part of the collecting box 13, and the top of the air distribution pipe 12 is provided with multiple air distribution holes. The waste steam discharged during steam washing is passed into the backwash wastewater collected in the collecting box to heat the wastewater, which is convenient for subsequent wastewater treatment and heat energy recovery.

[0023] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method 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 can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

[0024] In the description of the present invention, the terms "inside", "outside", "longitudinal", "lateral", "upper", "lower", "top", "bottom", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and do not require that the present invention must be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

Claims

1. A multi-stage filtration treatment device for drinking water, comprising an inlet main pipe (9) and an outlet main pipe (1), wherein the inlet main pipe (9) is provided with a water pump (8) and a Y-type filter (7), a plurality of filter cartridges (16) are connected in parallel between the inlet main pipe (9) and the outlet main pipe (1), a bracket (15) is fixed to the filter cartridge (16), a packing layer (21) is provided in the filter cartridge (16), and support filter screens (20) are provided above and below the packing layer (21), and an outlet branch pipe (2) and an inlet branch pipe (6) are provided at the top and bottom of the filter cartridge (16), respectively, characterized in that: An air outlet pipe (18) and a backwash outlet pipe (10) are respectively provided on the outlet branch pipe (2) and the inlet branch pipe (6). A backwash nozzle (19) and a steam distributor are respectively provided above and below the packing layer (21). The backwash nozzle (19) is connected to the backwash water inlet pipe (4). The steam distributor is connected to the steam inlet pipe (14). The steam inlet pipe (14) is connected to the steam delivery pipe (5). The backwash water inlet pipe (4) is connected to the backwash water delivery pipe (3). The inlet main pipe (9), the outlet main pipe (1), the outlet branch pipe (2), the inlet branch pipe (6), the air outlet pipe (18), the backwash outlet pipe (10), the backwash water inlet pipe (4), the steam inlet pipe (14), the backwash water delivery pipe (3) and the steam delivery pipe (5) are all provided with valves.

2. A drinking water multi-stage filtration treatment device according to claim 1, characterized in that: The outer end of the supporting filter (20) is provided with a limiting ring.

3. The multi-stage filtration treatment device for drinking water according to claim 1, characterized in that: The backwash nozzle (19) is vortex-shaped, and a plurality of backwash nozzle holes are provided at the bottom of the backwash nozzle (19). The steam distributor includes a hemispherical distribution ball (22), and distribution air holes are evenly provided on the outer wall of the distribution ball (22). The bottom of the distribution ball (22) is fixedly connected to the steam inlet pipe (14), and a distribution orifice plate (23) is fixed on the inner side of the bottom of the distribution ball (22).

4. The drinking water multi-stage filtration treatment device according to claim 3, characterized in that: A reinforcing rod is provided on the backwash nozzle (19).

5. The drinking water multi-stage filtration treatment device according to claim 1, characterized in that: The backwash water outlet pipe (10) is connected to an output pipe (11), the output pipe (11) is connected to a collection box (13), a discharge pipe is fixed to the bottom of the collection box (13), the air outlet pipe (18) is connected to an air supply pipe (17), the air supply pipe (17) is connected to an air distribution pipe (12), the air distribution pipe (12) is arranged at the lower part of the collection box (13), and a plurality of air distribution holes are provided on the top of the air distribution pipe (12).

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