Water filter

Abstract

The utility model discloses a water filter which comprises a water inlet header pipe, a water outlet header pipe and a plurality of tank bodies, water inlet branch pipes are connected to the upper ends of the tank bodies, the upper ends of the water inlet branch pipes are connected with the water inlet header pipe, water inlet electromagnetic valves are arranged on the water inlet branch pipes, water outlet branch pipes are connected to the upper portion of the water outlet header pipe, and the upper ends of the water outlet branch pipes extend into the tank bodies and are connected with filters. The side face of the tank body is connected with a drainage pipe which is provided with a drainage electromagnetic valve. According to the utility model, water can be effectively filtered.

Description

Technical Field

[0001] This utility model relates to the field of filter technology, and more specifically, to a water filter. Background Technology

[0002] With the increasing scarcity of water resources, the rational development and utilization of complex water sources such as Yellow River water and reclaimed water for agricultural irrigation has become one of the effective ways to alleviate the water shortage problem. Drip irrigation, due to its advantages of precise and controllable flow, is considered the most reliable method of water-saving irrigation, and the development of drip irrigation for complex water sources has broad application prospects. However, reclaimed water and Yellow River water are usually rich in a large amount of particulate matter, organic matter, and other impurities, which can easily cause blockage of the sprinkler system, thus posing a great risk to the safe operation of the drip irrigation system. To ensure the normal operation of irrigation systems such as sprinkler and drip irrigation, effective filtration of irrigation water is necessary. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a water filter.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] This utility model discloses a water filter, including an inlet main pipe, an outlet main pipe, and several tanks. The upper end of each tank is connected to an inlet branch pipe, the upper end of which is connected to the inlet main pipe. An inlet solenoid valve is installed on the inlet branch pipe. An outlet branch pipe is connected to the upper part of the outlet main pipe. The upper end of the outlet branch pipe extends into the tank and is connected to a filter element. A drain pipe is connected to the side of the tank, and a drain solenoid valve is installed on the drain pipe.

[0006] Furthermore, the filter element includes a water collection pipe, the lower end of which is connected to the upper end of the water outlet branch pipe. A water collection ring is provided on the water collection pipe, and several filter units are connected to the water collection ring.

[0007] Furthermore, there are two water collection rings, and the filter units on the two water collection rings are arranged alternately, one above the other.

[0008] Furthermore, the filter unit includes a mounting head, one end of which is connected to a water collection ring, and the other end of which is connected to a filter element. The other end of the filter element is connected to a top cap, and several stacked discs are fitted on the filter element. A nut is threaded onto the filter unit.

[0009] Furthermore, the filter element is fitted with a baffle plate one, a baffle ring and a baffle plate two. The baffle plate one is located below the bottommost stack of plates, the baffle plate two is located above the topmost stack of plates, and the baffle ring is located in the middle of the filter element, between the two stacks of plates.

[0010] Furthermore, grooves are provided on both the upper and lower parts of the laminate, and the grooves are evenly distributed on the laminate. The spacing between the inner ends of the grooves is smaller than the spacing between the outer ends of the grooves.

[0011] Furthermore, pressure gauges and pressure transmitters are installed on the inlet and outlet main pipes.

[0012] The beneficial effects of this utility model are: the filter formed by stacked discs, combined with the filter core formed by stacked quartz sand or ceramic particles, can better intercept impurity particles and effectively improve the filtration capacity. Moreover, the combination of the two helps to improve backwashing efficiency and reduce backwashing blind spots. By adding the filter unit formed by stacked discs and the quartz sand or other filter media in the tank, the sand filter and the disc filter can be integrated into one, saving space and controlling costs. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of one structure of the water filter in this embodiment;

[0014] Figure 2 This is a cross-sectional view of the water filter in this embodiment;

[0015] Figure 3 This is a schematic diagram of one structure of the filter in this embodiment;

[0016] Figure 4 This is a schematic diagram of one structure of the filtering unit in this embodiment;

[0017] Figure 5 This is a cross-sectional view of the filtering unit in this embodiment;

[0018] Figure 6 This is a schematic diagram of one structure of the stacked sheets in this embodiment.

[0019] Reference numerals in the attached diagram: 1. Main inlet pipe; 2. Main outlet pipe; 3. Branch inlet pipe; 4. Solenoid valve for inlet water; 5. Branch outlet pipe; 6. Drain pipe; 7. Solenoid valve for drain water; 8. Pressure gauge; 9. Pressure transmitter; 10. Filter; 11. Water collection pipe; 12. Water collection ring; 13. Filter unit; 14. Mounting head; 15. Filter element; 16. Top cap; 17. Disc; 18. Nut; 19. Baffle plate one; 20. Baffle ring; 21. Baffle plate two; 22. Groove; 23. Tank body. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] like Figures 1-6As shown, a water filter includes an inlet main pipe 1, an outlet main pipe 2, and at least two tanks 23. The inlet main pipe 1 and the outlet main pipe 2 are configured with one end open and the other end closed, and the opening directions of the inlet main pipe 1 and the outlet main pipe 2 are different. Pressure gauges 8 and pressure transmitters 9 are installed on the inlet main pipe 1 and the outlet main pipe 2.

[0022] The inlet main pipe 1, tank body 23, and outlet main pipe 2 are arranged from top to bottom. An inlet branch pipe 3 is connected to the upper end of the tank body 23, and the upper end of the inlet branch pipe 3 is connected to the inlet main pipe 1. An inlet solenoid valve 4 is installed on the inlet branch pipe 3. An outlet branch pipe 5 is connected to the upper part of the outlet main pipe 2. The upper end of the outlet branch pipe 5 extends into the tank body 23 and is connected to a filter element 10. The tank body 23 and the outlet branch pipe 5 are sealed together. A drain pipe 6 is connected to the side of the tank body 23, and a drain solenoid valve 7 is installed on the drain pipe 6. The connection point between the drain pipe 6 and the tank body 23 is positioned higher than the filter element 10. The filter element 10 includes a water collection pipe 11, the upper end of which is closed, and the lower end of which is connected to the upper end of the outlet branch pipe 5. A water collection ring 12 is installed on the water collection pipe 11, and several filter units 13 are connected to the water collection ring 12. A water distribution plate is installed inside the tank 23 below the connection between the inlet branch pipe 3 and the tank 23. After the raw water enters the tank 23 through the inlet branch pipe 3, the water flow is evenly distributed by the water distribution plate. After the suspended solids and other impurities in the water are intercepted and filtered by the filter unit 13, the clean water enters the water collection pipe 11, and then enters the water outlet main pipe 2 through the water outlet branch pipe 5.

[0023] The tank 23 contains a filter layer made of stacked quartz sand or ceramsite, forming a sand and gravel filter. This creates a three-dimensional filtration channel with strong filtration capabilities, primarily filtering softer impurities. The sand and gravel filter, combined with filter unit 13, further enhances the filtration capacity.

[0024] like Figure 3 As shown, there are two water collection rings 12 on the water collection pipe 11, and the filter units 13 on the two water collection rings 12 are arranged alternately, thereby increasing the contact with the raw water and filtering more raw water.

[0025] like Figure 4 , Figure 5 As shown, the filter unit 13 includes a mounting head 14, one end of which is connected to the water collection ring 12, and the other end of which is connected to a filter element 15. The other end of the filter element 15 is connected to a top cap 16. Several stacked discs 17 are fitted on the filter element 15, and a nut 18 is threaded onto the filter unit 13. By tightening the nut 18, the stacked discs 17 are pressed together.

[0026] The tank 23 contains filter media such as quartz sand or ceramic granules for primary filtration, and the filter element 15 is fitted with several discs 17 for secondary filtration. By combining the filter units formed by the stacked discs with the quartz sand or other filter media in the tank, the sand filter and the disc filter can be integrated into one, saving space and controlling costs.

[0027] The filter element 15 is fitted with a first baffle 19, a retaining ring 20, and a second baffle 21. The first baffle 19 is located at the connection between the mounting head 14 and the filter element 15, that is, below the lowermost stacked disc 17. The second baffle 21 is located above the uppermost stacked disc 17. The retaining ring 20 is located in the middle of the filter element 15, between the two stacked discs 17. The first baffle 19 and the second baffle 21 are used to increase the contact area with the stacked discs 17, so as to better press the stacked discs 17 together.

[0028] like Figure 6 As shown, grooves 22 are formed on both the upper and lower parts of the stacked plates 17. The grooves 22 are evenly distributed on the stacked plates 17 and are not arranged radially along the stacked plates 17. The spacing of the grooves 22 at their inner ends is smaller than the spacing at their outer ends. The stacked plates 17 are stacked on top of each other to form irregular water flow channels. The grooves 22 can create turbulence in the water flow, increasing the probability of collision between particles in the raw water and the grooves 22. After impurity particles are intercepted by the grooves 22, they settle or are adsorbed on the stacked plates 17, achieving the purpose of purifying the water quality. At the same time, the filter element 15 located inside the stacked plates 17 can play a further filtration and interception role.

[0029] During normal filtration, open the inlet solenoid valve 4 on the inlet branch pipe 3 and close the drain solenoid valve 7 on the drain pipe 6. Water flowing in from the main inlet pipe 1 enters the tank 23 through the inlet branch pipe 3 for filtration. The filtered water is then flushed out through the branch pipe 5 and discharged into the main outlet pipe 2.

[0030] As impurities increase between the filter plates 17 during the filtration process, the filtration effect is affected. When the pressure at the inlet main pipe 1 and outlet main pipe 2, as measured by pressure gauge 8, reaches a certain value, it indicates that backwashing is required. The backwashing process uses filtered water as the flushing water flow. The inlet solenoid valve 4 at the inlet branch pipe 3 of the tank 23 that needs backwashing is closed, while the drain solenoid valve 7 on the drain pipe 6 of that tank 23 is opened. Water from the other tank 23, which has been normally filtered, will flow out of the main pipe 2 and outlet branch pipe 5 and into the backwashing tank 23, backwashing the filter element 10 inside that tank 23, causing impurities in the filter element 10 to be discharged with the water flow from the drain pipe 6.

[0031] Because the trapped impurity particles differ in density and size from filter media such as quartz sand or ceramsite, the impurity particles, being smaller in both density and size than the filter media, will be discharged with the upward water flow, thus achieving the purpose of cleaning the filter layer.

[0032] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A water filter, characterized by, The utility model relates to a water purifying device, including water inlet main pipe (1), water outlet main pipe (2) and a plurality of jar (23), the upper end of jar (23) is connected with water inlet branch pipe (3), water inlet branch pipe (3) upper end is connected with water inlet main pipe (1), be provided with water inlet solenoid valve (4) on water inlet branch pipe (3), water outlet branch pipe (5) is connected to the upper portion of water outlet main pipe (2), water outlet branch pipe (5) upper end stretches into jar (23) and is connected with filter piece (10), jar (23) side is connected with drain pipe (6), be provided with drain solenoid valve (7) on drain pipe (6).

2. The water filter of claim 1, wherein The filter piece (10) includes a water collecting pipe (11), the lower end of the water collecting pipe (11) is connected with the upper end of the water outlet branch pipe (5), the water collecting pipe (11) is provided with a water collecting ring (12), and a plurality of filter units (13) are connected to the water collecting ring (12).

3. The water filter of claim 2, wherein, The water collecting ring (12) is provided with two, and the filter units (13) on the two water collecting rings (12) are arranged alternately.

4. The water filter according to claim 2 or 3, wherein The filter unit (13) includes a mounting head (14), one end of the mounting head (14) is connected with the water collecting ring (12), the other end of the mounting head (14) is connected with a filter core (15), the other end of the filter core (15) is connected with a top cap (16), a plurality of laminations (17) are sleeved on the filter core (15), and a nut (18) is threadedly connected to the filter unit (13).

5. The water filter of claim 4, wherein, The filter core (15) is sleeved with a first baffle (19), a baffle ring (20) and a second baffle (21), the first baffle (19) is located below the lowermost lamination (17), the second baffle (21) is located above the uppermost lamination (17), the baffle ring (20) is located at the middle position of the filter core (15), and the baffle ring (20) is located between two laminations (17).

6. The water filter of claim 5, wherein, The upper and lower parts of the lamination (17) are provided with grooves (22), the grooves (22) are uniformly distributed on the lamination (17), and the interval of the inner end of the groove (22) is smaller than the interval of the outer end of the groove (22).

7. The water filter of claim 1, wherein The water inlet main pipe (1) and the water outlet main pipe (2) are provided with a pressure gauge (8) and a pressure transmitter (9).

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