Water filter and water treatment system

Abstract

The utility model provides a water filter and a water treatment system.The water filter comprises at least one filter body and a siphon device, a filter cavity is defined by the filter body, the filter cavity comprises a filter material area used for containing filter materials, and the filter body is provided with a water inlet and a water outlet which are communicated with the interior and the exterior of the filter cavity; an inlet of the siphon device is positioned above the filter material area, an outlet of the siphon device is positioned on the outer side of the filter body and is lower than the bottom end of the filter body, and the highest point of the siphon device is higher than the water outlet. Through the arrangement of the water filter, the procedure of backwashing the filter material can be automatically operated by virtue of the hydraulic action and the siphon principle, the valve does not need to be manually operated, the operation cost and the risk of manual intervention are reduced, and the water filter is stable and reliable in operation, wide in application range, simple in equipment structure and simple and convenient to maintain.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of water treatment, in particular to a water filter and a water treatment system. BACKGROUND

[0002] Water treatment filter is a key technology and product of water resource purification treatment, and plays an irreplaceable important role in a wide range of application fields. Among them, the quartz sand filter is a filter using quartz sand as filter material, which can effectively remove suspended solids in water, and has obvious removal effect on colloids, iron, organic matter, pesticides, manganese, bacteria and viruses in water. It has the advantages of small filtration resistance, large specific surface area, strong acid and alkali resistance, oxidation resistance, wide application range, good pollution resistance, etc. and is widely used. However, the quartz sand filter on the market at present controls the backwashing process by manual operation of the valve, which increases the workload of manual operation and the influence of manual intervention on the stability of the quartz sand filter.

[0003] Therefore, it is necessary to design a new water filter and water treatment system to solve one of the above problems. SUMMARY

[0004] The present application provides a water filter and a water treatment system. The water filter and the water treatment system of the present application automatically run the backwashing process without human operation, thereby reducing the operation cost and the risk of human intervention.

[0005] In order to achieve the above-mentioned purpose, the technical scheme provided by the present application is as follows:

[0006] The present application provides a water filter, which comprises:

[0007] At least one filter body, the filter body surrounds a filter cavity, the filter cavity comprises a filter material area for placing filter material, and the filter body is provided with a water inlet and a water outlet connected inside and outside the filter cavity;

[0008] A siphon device, the inlet of the siphon device is located above the filter material area, the outlet of the siphon device is located outside the filter body and is lower than the bottom end of the filter body, and the highest point of the siphon device is higher than the water outlet.

[0009] Further, the siphon device comprises a siphon main pipe close to the inlet thereof, a siphon branch pipe close to the outlet thereof, and a siphon breaking pipe communicated with the siphon branch pipe, the upper end of the siphon breaking pipe is higher than the filter body, and the lower end of the siphon breaking pipe is located in the interval of the filter material area along the vertical direction.

[0010] Further, the siphon device further comprises an auxiliary pipe communicated with the siphon branch pipe and parallel to part of the structure of the siphon branch pipe, and the siphon breaking pipe is communicated with the auxiliary pipe.

[0011] Further, the siphon device further comprises a siphon standby pipe in communication with the siphon branch pipe, the connection between the siphon standby pipe and the siphon branch pipe is not lower than the upper end of the siphon breaking pipe, and the lower end of the siphon standby pipe is lower than the inlet of the siphon device.

[0012] Further, the siphon standby pipe comprises a pipe body and a connecting pipe for connecting the pipe body and the siphon branch pipe, the connecting pipe extends upward and outward from the side of the siphon branch pipe.

[0013] Further, a sewage discharge pipe for discharging sewage is further comprised, and the siphon device is fixed on the sewage discharge pipe.

[0014] Further, a distribution water tank, a water inlet pipe for connecting the distribution water tank and the filter cavity, the water inlet pipe is in a U shape, and the lowest point of the water inlet pipe is not higher than the filter material area.

[0015] Further, the distribution water tank is arranged higher than the filter body.

[0016] Further, the water filter comprises two filter bodies, the two filter bodies are connected through a connecting pipe, and the water inlet pipe comprises two and respectively connects the distribution water tank and the filter cavity.

[0017] The application further provides a water treatment system, which comprises the above water filter.

[0018] Compared with the related art, the water filter has the advantages that: the water filter automatically runs the filter material reverse cleaning program by relying on the hydraulic action and the siphon principle, without manual operation of the valve, the operation cost and the risk of manual intervention are reduced, the operation is stable and reliable, the application range is wide, the equipment structure is simple, and the maintenance is simple. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is the front view of the water filter of one embodiment of the water filter of the application.

[0020] Figure 2 is Figure 1 the top view of the water filter.

[0021] Figure 3 is Figure 2 the sectional view of the water filter along the A-A direction.

[0022] Figure 4 is Figure 3 the local enlarged view at B.

[0023] Wherein, 10-filter body, 11-filter cavity, 111-filter material area, 12-water inlet, 13-water outlet, 14-communication pipe, 20-siphon device, 21-siphon main pipe, 22-siphon branch pipe, 23-transition pipe, 24-siphon destruction pipe, 25-assistant pipe, 251-horizontal pipe, 252-vertical pipe, 253-inclined pipe, 26-siphon standby pipe, 261-pipe body, 262-connection pipe, 30-distribution water tank, 40-water inlet pipe, 50-water inlet pipe, 60-drain pipe, 70-sewage pool. DETAILED DESCRIPTION

[0024] In order to make the skilled in the art better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by the person skilled in the art without creative labor should belong to the scope of protection of the present application.

[0025] It should be noted that the terms "upper", "lower" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the auxiliary drawing, and are only for the convenience of simplifying the description of the present application, and do not indicate or imply that the device referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the scope of protection of the present application. Specifically, in the present application, the direction towards the ground is lower, and the direction away from the ground is upper, and other orientation descriptions are defined based on "upper" and "lower".

[0026] In various drawings of the present application, the sizes of some structures or parts may be exaggerated relative to other structural parts for the convenience of illustration, and therefore are only used to illustrate the basic structure of the subject matter of the present application.

[0027] The present application provides a water filter, such as Figures 1 to 4 As shown, for the preliminary purification or treatment of domestic water or industrial water, the water filter comprises at least one filter body 10, a siphon device 20, and the water filter of the present application automatically runs the filter material backwashing program through the siphon device 20, without manual operation of the valve, reducing the operation cost and the risk of manual intervention.

[0028] Specifically, the filter body 10 surrounds the filter cavity 11, and the filter cavity 11 comprises a filter material area 111 for placing filter material, and the filter material area 111 of the present application is located at the lower part of the filter cavity 11.

[0029] As Figure 1 and Figure 3As shown, the filter body 10 is provided with an inlet 12 and an outlet 13 for connecting the filter chamber 11. The inlet 12 is located in the middle of the filter body 10, that is, the inlet 12 is located above the filter media area 111. The middle part mentioned above does not refer to the middle part of the filter body 10, but to an area close to the middle part.

[0030] The outlet 13 is located at the upper part of the filter body 10. Generally, the filter body 10 also includes a water collection device (not shown) located in the filter chamber 11 for collecting the filtered purified water. The water collection device is connected to the outlet 13. After the water to be filtered enters the filter chamber 11 through the inlet 12, it flows to the bottom of the filter media under its own gravity. The water collection device collects the filtered purified water and then flows into the purified water tank (not shown) through the outlet 13. During this filtration process, pollutants such as colloids, iron, organic matter, pesticides, manganese, bacteria, and viruses contained in the water to be filtered are adsorbed onto the filter media.

[0031] In a preferred embodiment of this application, the water filter includes two filter bodies 10, which are connected by a connecting pipe 14. Each filter body 10 is matched with a siphon device 20, which can be used as backups for each other, or the two filter bodies 10 can work simultaneously, thereby increasing the efficiency and applicability of the water filter.

[0032] It is understood that the water filter may also include two or more filter bodies 10, and the siphon device 20 and the filter body 10 are respectively configured, all of which are within the protection scope of this application.

[0033] As another preferred embodiment of this application, such as Figure 3 As shown, the water filter also includes a distribution tank 30 and an inlet pipe 40 for connecting the distribution tank 30 and the filter chamber 11. The inlet pipe 40 is U-shaped, and the lowest point of the inlet pipe 40 is not higher than the filter media area 111. The water to be filtered enters the filter chamber 11 through the distribution tank 30. When the water passes through the lowest point of the inlet pipe 40, some impurities in the water settle at the lowest point of the inlet pipe 40 due to gravity, preventing these sediments from entering the filter chamber 11 with the inlet pipe 40. This allows the water to undergo primary sedimentation in the inlet pipe 40 before entering the filter chamber 11.

[0034] It is understood that the number of water inlet pipes 40 is the same as the number of filter bodies 10. That is, in an embodiment where there are two filter bodies 10, the water inlet pipes 40 include two and are used to connect the distribution tank 30 and the filter chamber 11 respectively, so as to inject water into each filter chamber 11 respectively.

[0035] In the application, the distribution water tank 30 is arranged higher than the filter body 10, which increases the path of the water to be filtered to reach the lowest point of the water inlet pipe 40, improves the effect of primary precipitation, and further improves the purification effect of the water filter as a whole.

[0036] The water inlet pipe 50 is arranged on the distribution water tank 30, which is used to transport the water to be filtered into the distribution water tank 30.

[0037] With the progress of the filtering process, suspended solids gradually accumulate on the filter material, which increases the resistance of water filtration and affects the normal progress of filtration. The water level above the filter material area 111 rises, and the water pressure above the filter material area 111 becomes larger. At this time, the filter material needs to be backwashed. The water filter of the application automatically controls the backwashing of the filter material by using the siphon device 20.

[0038] Specifically, the inlet of the siphon device 20 is located in the filter cavity 11 and above the filter material area 111, and the outlet of the siphon device 20 is located outside the filter body 10 and lower than the bottom end of the filter body 10, that is, the outlet of the siphon device 20 is lower than the inlet of the siphon device 20 in the up-down direction, so that the siphon device 20 can produce a siphon effect.

[0039] When the water pressure above the filter material area 111 continues to gradually increase, the water enters the siphon device 20 located above the filter material area 11, and after the water in the siphon device 20 reaches the highest point of the siphon device 20, it flows out through the outlet of the siphon device 20 under the action of gravity. Due to the height difference between the outlet and the inlet of the siphon device 20, the water above the filter material area 111 continues to be discharged through the siphon device 20 to the outside of the filter body 10. With the progress of the siphon process, the water in the filter cavity 11 moves from bottom to top, passes through the filter material and carries away the contaminants attached to the filter material, thereby starting the backwashing of the filter material.

[0040] Further, the siphon device 20 includes a siphon main pipe 21 close to the inlet of the siphon device 20, a siphon branch pipe 22 close to the outlet of the siphon device 20, and a transition pipe 23 connecting the siphon main pipe 21 and the siphon branch pipe 22. The transition pipe 23 is arranged higher than the filter body 10.

[0041] The siphon device 20 further includes a siphon breaking pipe 24 in communication with the siphon branch pipe 22. The upper end of the siphon breaking pipe 24 is arranged higher than the filter body 10, and the lower end of the siphon breaking pipe 24 is located in the interval along the up-down direction of the filter material area 111. During the backwashing process, the water level in the filter cavity 11 gradually decreases, and when the water level in the filter cavity 11 decreases to the siphon breaking pipe 24, air enters the siphon branch pipe 22, thereby breaking the siphon effect, ending the backwashing, and starting the filtration again.

[0042] As another preferred embodiment of the present application, as shown in Figure 3 and Figure 4 shown, the siphon device 20 further comprises an auxiliary pipe 25 which is in communication with the siphon branch pipe 22 and parallel to the partial structure of the siphon branch pipe 22, the auxiliary pipe 25 is arranged above the filter body 10, the siphon breaking pipe 24 is in communication with the auxiliary pipe 25, preventing water from entering the siphon breaking pipe 24 when the siphon effect occurs.

[0043] Specifically, as shown in Figure 4 shown, the auxiliary pipe 25 comprises a transverse pipe 251 which extends along the radial direction of the siphon branch pipe 22, a vertical pipe 252 which is in communication with the transverse pipe 251 and extends along the axial direction of the siphon branch pipe 22, and an inclined pipe 253 which is in communication with the vertical pipe 252 and the siphon branch pipe 22, the inclined pipe 253 extends obliquely towards the siphon branch pipe 22, the siphon breaking pipe 24 is in communication with the inclined pipe 253, increasing the path of the siphon breaking pipe 24 connecting with the siphon branch pipe 22, preventing water from entering the siphon breaking pipe 24 without affecting the action of the siphon breaking pipe 24.

[0044] As another preferred embodiment of the present application, as shown in Figure 3 and Figure 4 shown, the siphon device 20 further comprises a siphon standby pipe 26 which is in communication with the siphon branch pipe 22, the siphon standby pipe 26 is arranged in parallel with the siphon branch pipe 22, the connection between the siphon standby pipe 26 and the siphon branch pipe 22 is not lower than the upper end of the siphon breaking pipe 25, the lower end of the siphon standby pipe 26 is lower than the inlet of the siphon main pipe 21, when the siphon branch pipe 22 has a problem, the siphon standby pipe 26 replaces the siphon branch pipe 22 to complete the siphon process.

[0045] Specifically, the siphon standby pipe 26 comprises a pipe body 261 and a connecting pipe 262 which is in communication with the pipe body 261 and the siphon branch pipe 22, the connecting pipe 262 extends upwards and outwards from the side of the siphon branch pipe 22, that is, the extension direction of the connecting pipe 262 is opposite to the direction of water flow, preventing water from entering the siphon standby pipe 26 when the siphon branch pipe 22 works normally.

[0046] Further, as shown in Figure 2As shown, the water filter further comprises a sewage pipe 60 for discharging sewage, one end of the sewage pipe 60 is located above the filter material area 111, and the other end is located outside the filter body 10, since the inner diameter of the sewage pipe 60 is larger than the inner diameter of the siphon device 20, the sewage pipe 60 itself cannot generate a siphon effect, and can also improve the discharge speed of the sewage after backwashing, the sewage pipe 60 of the present application can also be used to fix the siphon device 20, that is, the siphon device 20 is fixed on the sewage pipe 60.

[0047] As shown in Figure 2 and Figure 3 As shown, the water filter further comprises a sewage pool 70 located below the filter body 10, the sewage pipe 70 and the outlet of the siphon device 20 both extend into the sewage pool 70 to facilitate the sewage pool 70 to collect the backwashing sewage.

[0048] The present application also provides a water treatment system, which comprises the above-mentioned water filter, the water treatment system using the above-mentioned water filter can automatically backwash the water filter without manual operation of the valve, thereby reducing the operation cost and the risk of manual intervention and improving the stability of the entire water treatment system.

[0049] In summary, the water filter of the present application can automatically run the filter material backwashing program by setting the siphon device 20 relying on the hydraulic action and the siphon principle, without manual operation of the valve, thereby reducing the operation cost and the risk of manual intervention, and being stable and reliable in operation, strong in adaptability and convenient to popularize.

[0050] It should be understood that although the present specification is described in terms of embodiments, each embodiment does not contain only one independent technical solution, and the description manner of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that those skilled in the art can understand.

[0051] The series of detailed descriptions listed above are only specific descriptions of the feasible embodiments of the present application, and are not used to limit the protection scope of the present application, and any equivalent embodiments or changes made without departing from the spirit of the present application should be included in the protection scope of the present application.

Claims

1. A water filter, characterized by, The water filter comprises: at least one filter body, which is arranged to form a filter cavity, the filter cavity comprising a filter material area for placing filter material, the filter body being provided with a water inlet and a water outlet connected between the inside and outside of the filter cavity; a siphon device, the inlet of the siphon device being located above the filter material area, the outlet of the siphon device being located outside the filter body and below the bottom end of the filter body, the highest point of the siphon device being located above the water outlet.

2. The water filter of claim 1, wherein, The siphon device comprises a siphon main pipe near the inlet of the siphon device, a siphon branch pipe near the outlet of the siphon device, and a siphon breaking pipe connected with the siphon branch pipe, the upper end of the siphon breaking pipe being located above the filter body, and the lower end of the siphon breaking pipe being located within the filter material area along the vertical direction.

3. The water filter of claim 2, wherein, The siphon device further comprises an auxiliary pipe connected with the siphon branch pipe and in parallel with part of the structure of the siphon branch pipe, and the siphon breaking pipe is connected with the auxiliary pipe.

4. The water filter of claim 2, wherein, The siphon device further comprises a siphon standby pipe connected with the siphon branch pipe, the connection between the siphon standby pipe and the siphon branch pipe being not lower than the upper end of the siphon breaking pipe, and the lower end of the siphon standby pipe being lower than the inlet of the siphon device.

5. The water filter of claim 4, wherein, The siphon standby pipe comprises a pipe body and a transition pipe for connecting the pipe body with the siphon branch pipe, the transition pipe extending upward and outward from the side of the siphon branch pipe.

6. The water filter of claim 1, wherein, The water filter further comprises a sewage discharge pipe for discharging sewage, and the siphon device is fixed on the sewage discharge pipe.

7. The water filter according to any one of claims 1 to 6, wherein The water filter further comprises a distribution water tank and a water inlet pipe for connecting the distribution water tank with the filter cavity, the water inlet pipe being in a U shape, and the lowest point of the water inlet pipe being not higher than the filter material area.

8. The water filter of claim 7, wherein, The distribution water tank is located above the filter body.

9. The water filter of claim 7, wherein, The water filter comprises two filter bodies connected by a connecting pipe, and the water inlet pipe comprises two pipes respectively connected with the distribution water tank and the filter cavity.

10. A water treatment system characterized by, The water filter comprises the water filter according to any one of claims 1 to 9.

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