Self-cleaning water filter

Abstract

The utility model discloses a self-cleaning water filter, which relates to the technical field of cooling water filtration, and comprises a water filter tank, a high-pressure water washing mechanism and an air disturbance mechanism, the water filter tank is provided with an accommodating cavity with a water inlet and a water outlet, a filter screen is arranged in the accommodating cavity, the water inlet and the water outlet are respectively communicated with a water inlet pipe and a water outlet pipe, and the air disturbance mechanism is arranged in the accommodating cavity. The high-pressure water washing mechanism communicates with the bottom of the water filtering tank and is provided with a washing end facing the filter screen; the air disturbance mechanism communicates with the water filtering tank and is used for injecting high-speed air into the accommodating cavity; in the technical scheme provided by the utility model, the high-pressure water washing mechanism can wash the filter screen through pressurized water, high-speed air enters the accommodating cavity and can disturb air and water flow in the accommodating cavity, and the high-speed air can blow away attachments such as sediments, sludge and biological membranes on the filter screen; the flushing effect of the high-pressure water flushing mechanism is more remarkable, and the cleaning efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cooling water filtration, in particular to a self-cleaning water filter. Background Art

[0002] Cooling water filters are devices used to remove suspended solids, particulate matter, and dirt from cooling water systems to prevent these impurities from damaging heat exchangers, cooling towers, and other equipment. They typically include filters, control systems, and other components, effectively extending system life, improving cooling efficiency, and reducing maintenance costs. Cooling water filters are widely used in air conditioning, refrigeration, and cooling systems in industrial, commercial, and residential buildings.

[0003] Since the filter is prone to clogging during long-term use, resulting in reduced water filtration efficiency and poor water filtration effect, a backwash system is usually set up to clean the filter. In related technologies, the backwash system usually includes a set of high-pressure water gun devices, which pressurize water to obtain high-pressure water, and use the high-pressure water to impact the filter to clean the attachments on the filter. However, the high-pressure water flushing cleaning process is limited by the water pressure, and the cleaning effect is not good for attachments that have been deposited on the filter for a long time. Utility Model Content

[0004] The main purpose of the utility model is to provide a self-cleaning water filter, which aims to provide a self-cleaning water filter with good cleaning effect on attachments that have been deposited on the filter screen for a long time.

[0005] To achieve the above-mentioned purpose, the self-cleaning water filter proposed in the present invention comprises:

[0006] A water filter box, wherein the water filter box is provided with a receiving cavity having a water inlet and a water outlet, a filter screen is provided in the receiving cavity, and the water inlet and the water outlet are connected to a water inlet pipe and a water outlet pipe respectively;

[0007] a high-pressure water flushing mechanism, the high-pressure water flushing mechanism being connected to the bottom of the water filter box and having a flushing end facing the filter screen; and

[0008] An air disturbance mechanism is connected to the water filter box and is used to inject high-speed air into the accommodating cavity.

[0009] In one embodiment, the self-cleaning water filter further includes a mixing tube, the mixing tube is connected to the water filter tank, and the high-pressure water flushing mechanism and the air disturbance mechanism are connected to the mixing tube.

[0010] In one embodiment, the self-cleaning water filter further includes a bypass connecting pipe, both ends of which are connected to the water inlet pipe and the water outlet pipe respectively, and the bypass connecting pipe is provided with a bypass electric door.

[0011] In one embodiment, the water filter box is provided with a sewage pipe, the sewage pipe is connected with the accommodating cavity and the outside, and the sewage pipe is provided with a sewage valve.

[0012] In one embodiment, the water inlet pipe and the water outlet pipe are respectively provided with an electric water inlet door and an electric water outlet door, and the electric water inlet door and the electric water outlet door are used to control the on-off of the water inlet pipe and the water outlet pipe respectively.

[0013] In one embodiment, the water filter box is further provided with an openable and closable exhaust valve.

[0014] In one embodiment, the high-pressure water flushing mechanism includes a clean water tank and a water pump. The clean water tank is connected to the mixing pipe. The water pump is provided in the passage between the clean water tank and the mixing pipe to pressurize the water.

[0015] In one embodiment, the high-pressure water flushing mechanism further includes a solenoid valve, which is disposed in a passage between the clean water tank and the mixing pipe and is used to control the opening and closing of the passage.

[0016] In one embodiment, the water inlet pipe is provided with a flow meter.

[0017] In one embodiment, the air disturbance mechanism includes an air compressor and an air intake valve, and the air intake valve is used to control the air intake of the air compressor.

[0018] In the technical solution of the present utility model, a self-cleaning water filter is proposed, including a water filter box, a high-pressure water flushing mechanism and an air disturbance mechanism. A filter screen for filtering cooling water is provided in the water filter box. The high-pressure water flushing mechanism is connected to the bottom of the water filter box and a flushing end is set toward the filter screen. The air disturbance structure is also connected to the water filter box. When cleaning the filter screen, the high-pressure water flushing mechanism and the air disturbance mechanism are opened at the same time and injected into the accommodating cavity of the water filter box. The high-pressure water flushing mechanism can flush the filter screen with pressurized water, and high-speed air enters the accommodating cavity, which can disturb the air and water flow in the accommodating cavity. The high-speed air can blow away attachments on the filter screen, such as sediment, sludge, biofilm, etc., so that the flushing effect of the high-pressure water flushing mechanism is more significant, thereby improving the cleaning efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0020] Figure 1This is a structural schematic diagram of an embodiment of the self-cleaning water filter provided by the utility model.

[0021] Description of Figure Numbers:

[0022] 1000. Self-cleaning water filter; 1. Water filter tank; 11. Filter screen; 12. Drain pipe; 121. Drain valve; 13. Exhaust valve; 14. Water inlet pipe; 141. Water inlet electric door; 142. Flow meter; 15. Water outlet pipe; 151. Water outlet electric door; 2. High-pressure water flushing mechanism; 21. Clean water tank; 22. Water pump; 23. Flushing end; 3. Air disturbance mechanism; 31. Air compressor; 32. Inlet valve; 4. Mixing pipe; 5. Bypass connecting pipe; 51. Bypass electric door.

[0023] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0025] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0026] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0027] Cooling water filters are devices used to remove suspended solids, particulate matter, and dirt from cooling water systems to prevent these impurities from damaging heat exchangers, cooling towers, and other equipment. They typically include filters, control systems, and other components, effectively extending system life, improving cooling efficiency, and reducing maintenance costs. Cooling water filters are widely used in air conditioning, refrigeration, and cooling systems in industrial, commercial, and residential buildings.

[0028] Since the filter is prone to clogging during long-term use, resulting in reduced water filtration efficiency and poor water filtration effect, a backwash system is usually set up to clean the filter. In related technologies, the backwash system usually includes a set of high-pressure water gun devices, which pressurize water to obtain high-pressure water, and use the high-pressure water to impact the filter to clean the attachments on the filter. However, the high-pressure water flushing cleaning process is limited by the water pressure, and the cleaning effect is not good for attachments that have been deposited on the filter for a long time.

[0029] In order to solve the above problems, the utility model proposes a self-cleaning water filter, which aims to provide a self-cleaning water filter with good cleaning effect on attachments that have been deposited on the filter screen for a long time. Figure 1 The figure is a structural diagram of an embodiment of the self-cleaning water filter provided by the utility model.

[0030] Please refer to Figure 1 The utility model proposes a self-cleaning water filter 1000, including a water filter box 1, a high-pressure water flushing mechanism 2 and an air disturbance mechanism 3. The water filter box 1 is provided with a receiving chamber having a water inlet and a water outlet, and a filter screen 11 is provided in the receiving chamber. The water inlet and the water outlet are respectively connected to an inlet pipe 14 and a water outlet pipe 15. The high-pressure water flushing mechanism 2 is connected to the bottom of the water filter box 1 and is provided with a flushing end 23 facing the filter screen 11. The air disturbance mechanism 3 is connected to the water filter box 1 and is used to inject high-speed air into the receiving chamber.

[0031] In the technical solution of the present invention, a self-cleaning water filter 1000 is proposed, including a water filter box 1, a high-pressure water flushing mechanism 2 and an air disturbance mechanism 3. A filter screen 11 for filtering cooling water is provided in the water filter box 1. The high-pressure water flushing mechanism 2 is connected to the bottom of the water filter box 1 and a flushing end 23 is set toward the filter screen 11. The air disturbance structure is also connected to the water filter box 1. When cleaning the filter screen 11, the high-pressure water flushing mechanism 2 and the air disturbance mechanism 3 are opened at the same time and injected into the accommodating cavity of the water filter box 1. The high-pressure water flushing mechanism 2 can flush the filter screen 11 with pressurized water, and high-speed air enters the accommodating cavity, which can disturb the air and water flow in the accommodating cavity. The high-speed air can blow away attachments on the filter screen 11, such as sediment, sludge, biofilm, etc., so that the flushing effect of the high-pressure water flushing mechanism 2 is more significant, thereby improving the cleaning efficiency.

[0032] In order to further improve the cleaning efficiency, in one embodiment of the present invention, the self-cleaning water filter 1000 further includes a mixing tube 4. For details, please refer to Figure 1 The flushing end 23 of the high-pressure water flushing mechanism 2 and the air outlet end of the air disturbance mechanism 3 are both connected to the branch of the mixing pipe 4. When the high-pressure water flushing mechanism 2 and the air disturbance mechanism 3 are simultaneously activated, the high-pressure water is fully mixed with the high-speed air and then sprayed onto the filter 11 together, effectively cleaning the attached objects on the filter 11. At the same time, the high-speed air flow has a good disturbance effect on the air and high-pressure water flow in the water filter box 1, making it easier to separate stubborn attachments from the filter 11. The air disturbance mechanism 3 includes an air compressor 31 and an air inlet valve 32, which is used to control the air intake of the air compressor 31.

[0033] To ensure that the cooling water is not affected when cleaning the filter 11, the self-cleaning water filter 1000 also includes a bypass connecting pipe 5. When the filter 11 of the water filter tank 1 is being cleaned, the cooling water can still flow through the bypass connecting pipe 5. The two ends of the bypass connecting pipe 5 are respectively connected to the water inlet pipe 14 and the water outlet pipe 15. When the water inlet electric door 141 and the water outlet electric door 151 are closed, the bypass electric door 51 on the bypass connecting pipe 5 opens, and the cooling water can only be discharged through the bypass connecting pipe 5, so that the cooling water is not affected when cleaning the filter 11. The water filter tank 1 is equipped with a drain pipe 12, which is connected to a drain valve 121. The high-pressure water flushing can discharge the attached debris from the drain pipe 12.

[0034] To maintain pressure balance within the filter tank 1, the filter tank 1 is equipped with an openable and closable exhaust valve 13. This valve prevents dangerous situations caused by excessive water pressure, such as rupture or damage to the filter tank 1. The exhaust valve 13 automatically adjusts the water pressure. When the water pressure exceeds the set value, the valve opens, releasing some water to maintain the water pressure within a safe range. This ensures the safety of the filter tank 1 and the surrounding environment, preventing potential dangers caused by excessive water pressure. The high-pressure water flushing mechanism 2 includes a clean water tank 21 and a water pump 22. The clean water tank 21 is connected to the mixing tube 4. The water pump 22 is located in the passage between the clean water tank 21 and the mixing tube 4 to pressurize the water. To control the operation and stopping of the water pump 22, the high-pressure water flushing mechanism 2 also includes a solenoid valve, which controls the opening and closing of the passage between the clean water tank 21 and the mixing tube 4.

[0035] In one embodiment of the present invention, to monitor the cooling water inlet flow rate, a flow meter 142 is installed in the water inlet pipe 14. This flow meter 142 is an instrument used to measure the flow rate of a fluid (such as water, oil, or gas) passing through a pipeline or device. It calculates the flow rate by detecting certain fluid flow parameters (such as velocity, pressure, and volume). Common flow meters 142 include electromagnetic flow meters 142, turbine flow meters 142, and ultrasonic flow meters 142. Each flow meter 142 has its own specific operating principle and application range.

[0036] The above description is merely an exemplary embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made using the contents of the present invention specification and drawings under the technical concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A self-cleaning water filter, characterized in that: include: A water filter box, wherein the water filter box is provided with a receiving chamber having a water inlet and a water outlet, a filter screen is provided in the receiving chamber, and the water inlet and the water outlet are connected to a water inlet pipe and a water outlet pipe respectively; A high-pressure water flushing mechanism, the high-pressure water flushing mechanism is connected to the bottom of the water filter box and is provided with a flushing end facing the filter screen; and An air disturbance mechanism is connected to the water filter box and is used to inject high-speed air into the accommodating chamber.

2. The self-cleaning water filter according to claim 1, characterized in that The self-cleaning water filter also includes a mixing tube, which is connected to the water filter box, and the high-pressure water flushing mechanism and the air disturbance mechanism are connected to the mixing tube.

3. The self-cleaning water filter according to claim 2, characterized in that: The self-cleaning water filter also includes a bypass connecting pipe, the two ends of which are respectively connected to the water inlet pipe and the water outlet pipe, and the bypass connecting pipe is provided with a bypass electric door.

4. The self-cleaning water filter according to claim 1, characterized in that The water filter box is provided with a sewage pipe, the sewage pipe is connected with the accommodating cavity and the outside, and the sewage pipe is provided with a sewage valve.

5. The self-cleaning water filter according to any one of claims 1 to 4, characterized in that: The water inlet pipe and the water outlet pipe are respectively provided with a water inlet electric door and a water outlet electric door, and the water inlet electric door and the water outlet electric door are respectively used to control the on-off of the water inlet pipe and the water outlet pipe.

6. The self-cleaning water filter according to any one of claims 1 to 4, characterized in that: The water filter box is also provided with an openable and closable exhaust valve.

7. The self-cleaning water filter according to claim 2, characterized in that: The high-pressure water flushing mechanism comprises a clean water tank and a water pump. The clean water tank is connected to the mixing tube. The water pump is arranged in the passage between the clean water tank and the mixing tube to pressurize the water.

8. The self-cleaning water filter according to claim 7, characterized in that The high-pressure water flushing mechanism also includes a solenoid valve, which is arranged in the passage between the clean water tank and the mixing pipe and is used to control the opening and closing of the passage.

9. The self-cleaning water filter according to any one of claims 1 to 4, characterized in that: The water inlet pipe is provided with a flow meter.

10. The self-cleaning water filter according to any one of claims 1 to 4, characterized in that: The air disturbance mechanism includes an air compressor and an air intake valve, and the air intake valve is used to control the air intake of the air compressor.

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