Descaling device and self-cleaning filtering pollution discharge mechanism thereof

Abstract

The utility model discloses a descaling device and a self-cleaning filtering pollution discharge mechanism thereof, and belongs to the technical field of evaporation cold descaling equipment. The device mainly comprises a rack, the rack is fixedly connected with a first cyclone, a second cyclone and a self-cleaning filtering pollution discharge mechanism, a first scale inhibitor is usually arranged at a liquid outlet of the first cyclone, a pollution discharge port of the first cyclone is connected with a liquid inlet of the second cyclone, and a second scale inhibitor is arranged at a liquid outlet of the second cyclone. A liquid outlet of the second swirler is communicated with the liquid inlet pipe through a first activator and a first one-way valve, a drain outlet of the second swirler is communicated with the filter screen basket, the liquid outlet is sequentially connected with an algae removal and sterilization mechanism and a filter mechanism, a liquid outlet of the filter mechanism is communicated with the filter screen basket, and a drain outlet of the swirling tank body is communicated with the filter screen basket. Multiple times of filtering separation are achieved through the three-stage rotational flow filtering device, scale is separated and discharged, purification and cyclic utilization of cooling water are achieved, water resources are greatly saved, and the descaling effect and the descaling efficiency are improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of evaporative cold descaling equipment, and more specifically, it relates to a descaling device and its self-cleaning filter and sewage discharge mechanism. Background Technology

[0002] Central air conditioning water systems or evaporative cooling equipment primarily rely on cooling water for cooling. However, this cooling water often contains calcium and magnesium ions, acidic carbonates, sand, silt, algae, and other particulate matter. When this cooling water flows over high-temperature metal surfaces, hydrocarbons are generated, forming scale. Additionally, dissolved oxygen in the cooling water can cause metal corrosion, leading to rust. Furthermore, microbial growth can also contribute to scale formation. Scale buildup corrodes pipes, shortens equipment lifespan, reduces heat exchange efficiency, weakens heat transfer capacity, increases electricity consumption, and further raises operating costs. The decreased heat dissipation can also cause excessively high internal temperatures, affecting the normal operation of the equipment.

[0003] The patent with authorization announcement number "CN221526773U" discloses an air conditioning system and a self-cleaning evaporative condensation system. In use, the solenoid valve is normally open in the spray cooling state, and the variable frequency water pump runs at the first speed, so that the spray assembly sprays cooling water onto the heat exchange tube assembly. In the descaling state, the solenoid valve opens and closes periodically, and the variable frequency water pump runs at the second speed, so that the spray assembly performs high-pressure and vibration descaling on the heat exchange tube assembly, achieving descaling without stopping the machine, improving the descaling effect and increasing the descaling efficiency.

[0004] However, the above system still has the following problems in actual use: 1. Spraying can only turn hard scale into soft scale, and the water after spraying contains a lot of soft scale, which cannot be recycled, resulting in serious waste of water resources; 2. The above descaling method cannot filter soft scale; 3. Since the evaporative cooler is an open structure, dust and bacteria in the air will continuously enter the evaporative cooler, and scale will continue to appear, thus affecting the heat exchange function of the radiator. The above structure cannot filter and adsorb dust and bacteria in the evaporative cooler. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a descaling device and its self-cleaning filtration and sewage discharge mechanism. It adopts a three-stage cyclone filtration device in conjunction with multiple strong magnetic scale inhibitors to cut large water molecule clusters into small water molecule clusters, effectively preventing calcium, magnesium and other ions in the liquid from forming scale. At the same time, the three-stage cyclone filtration device separates and discharges the scale through multiple filtrations, realizing the purification and recycling of cooling water, greatly saving water resources and improving the descaling effect and efficiency.

[0006] The self-cleaning filter and sewage discharge mechanism includes a cyclone tank, a sewage discharge port at the bottom of the cyclone tank, a liquid outlet at the top of the cyclone tank, and a liquid inlet pipe connected to the upper part of the cyclone tank along the tangential direction. The mechanism is characterized in that: at least two layers of metal filter screens are fixedly connected to the upper part of the cyclone tank, a carbon filter layer is filled between adjacent metal filter screens, a first arc-shaped filter screen is provided below the first metal filter screen, the first arc-shaped filter screen is positioned above the liquid inlet pipe, and a rotating cleaning mechanism is provided between the first arc-shaped filter screen and the metal filter screen located at the bottom, with a cleaning pipe connected to the rotating cleaning mechanism.

[0007] Preferably, the rotary cleaning mechanism includes a rotary head, with multiple evenly distributed flushing pipes connected to the circumference of the rotary head. The end of the flushing pipe away from the rotary head transitions downward at an angle. The rotary head is rotatably connected to the flushing pipes, and the flushing pipes are fixedly connected to the cyclone tank.

[0008] Preferably, the arc of the first arc-shaped filter screen is bent towards the side away from the rotating cleaning mechanism.

[0009] Preferably, a filter tank is provided at the bottom of the drain outlet. The filter tank includes a tank shell and a retractable filter basket inside the tank shell. At least two layers of metal filter mesh are provided at the bottom of the filter basket. The metal filter mesh is fixedly connected to the inner wall of the filter tank. A carbon filter layer is filled between adjacent metal filter meshes. A drain pipe is provided at the bottom of the filter tank, and an umbrella-shaped filter is fixedly connected to the drain pipe.

[0010] The descaling device includes a frame on which a first hydrocyclone, a second hydrocyclone, and the aforementioned self-cleaning filter and sewage discharge mechanism are fixedly connected. A first scale inhibitor is provided at the outlet of the first hydrocyclone. The sewage discharge port of the first hydrocyclone is connected to the inlet of the second hydrocyclone. The outlet of the second hydrocyclone is connected to the inlet pipe through an activator and a one-way valve. The sewage discharge port of the second hydrocyclone is connected to the filter basket. An algae removal and sterilization mechanism and a filtration mechanism are sequentially connected to the outlet. The outlet of the filtration mechanism is connected to the filter basket. The sewage discharge port of the hydrocyclone tank is connected to the filter basket.

[0011] Preferably, the drain pipe of the first hydrocyclone is equipped with an electromagnetic sand storage filter and a drain valve, the drain pipe of the second hydrocyclone is equipped with an electromagnetic sand storage filter and a control valve, and the drain pipe of the hydrocyclone tank is equipped with an electromagnetic sand storage filter and a control valve; a second arc-shaped filter screen is provided at the liquid outlet of the first hydrocyclone, the second hydrocyclone, and the hydrocyclone tank.

[0012] Preferably, the cleaning pipe is connected to the filter water tank or water supply system through a cleaning liquid inlet pipe, and a cleaning pump, an activator II, and a check valve II are installed on the cleaning liquid inlet pipe.

[0013] Preferably, the top of the frame is equipped with a solar photovoltaic panel, the frame is equipped with a storage battery, and the outlet of the filtration mechanism is equipped with a hydroelectric generator, which is connected to the storage battery.

[0014] Preferably, a water supply pipe is connected to the cyclone tank, and the water supply pipe is connected to the water supply system via a pump.

[0015] Preferably, the frame is equipped with a descaling liquid tank and a scale inhibition liquid tank. The bottom of the descaling liquid tank is connected to a spray pipe, and a control valve three and an inlet pump one are installed on the spray pipe. The scale inhibition liquid tank is connected to a filter water tank or an evaporative cooling water pool through a control valve four and an inlet pump two.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. The self-cleaning filtration and sewage discharge mechanism utilizes the swirling effect of the cyclone tank to perform the first filtration using centrifugal force, separating larger particles of impurities. A second filtration occurs through the first arc-shaped filter screen, separating slightly larger particles. The multi-layered filtration structure, consisting of a metal filter screen and a carbon filter layer, further adsorbs odors, pigments, and some tiny organic pollutants from the liquid, thus greatly purifying the cooling water. Finally, impurities are collected and filtered out through the filter water tank at the bottom of the sewage outlet, allowing the filtered water to be recycled, avoiding water waste and improving heat exchange efficiency.

[0018] 2. A rotating cleaning mechanism is added to the self-cleaning filter and sewage discharge mechanism. The self-cleaning filter and sewage discharge mechanism can spray water onto the first arc-shaped filter screen through the flushing pipe. The flushing pipe bends downwards at an angle. Under the reaction force of the water flow, the rotating head and flushing pipe can rotate automatically without power, thereby more effectively removing dirt and impurities attached to the filter screen.

[0019] 3. This utility model uses a three-stage cyclone filtration device in conjunction with multiple strong magnetic scale inhibitors to cut large water molecule clusters into small water molecule clusters, effectively preventing calcium, magnesium and other ions in the liquid from forming scale. At the same time, the three-stage cyclone filtration device separates and discharges the scale through multiple filtrations, realizing the purification, separation and recycling of cooling water, greatly saving water resources and improving the descaling effect and efficiency. Attached Figure Description

[0020] Figure 1 This is a front structural diagram of the present invention;

[0021] Figure 2 This is a schematic diagram of the rear structure of the present invention;

[0022] Figure 3 A schematic diagram of a self-cleaning filter and sewage discharge mechanism;

[0023] Figure 4 This is a cross-sectional schematic diagram of a self-cleaning filter and sewage discharge mechanism;

[0024] Figure 5 This is a schematic diagram of the rotary cleaning mechanism;

[0025] Figure 6 This is a schematic diagram of the external structure of the water filtration tank;

[0026] Figure 7 This is a schematic diagram of the internal structure of the water filtration tank;

[0027] Figure 8 This is a schematic diagram of the present invention.

[0028] In the diagram, 1. First hydrocyclone; 101. No. 1 strong magnetic scale-inhibiting ring; 102. Electromagnetic sand storage filter one; 2. Second hydrocyclone; 201. Electromagnetic sand storage filter two; 202. Control valve one; 203. Activator one; 204. Check valve one; 3. Self-cleaning filter and sewage discharge mechanism; 301. Hydrocyclone tank; 302. Inlet pipe; 303. Cleaning pipe; 304. Outlet; 305. Carbon filter layer one; 306. Metal filter screen one; 307. First arc-shaped filter screen; 308. Electromagnetic sand storage filter three; 309. Control valve two; 310. Cleaning pump; 311. Activator two; 312. Check valve two; 4. Filter water tank; 401. Water tank shell; 402. Filter screen basket; 403. Handle; 404. Metal filter screen two; 4 05. Carbon filter layer two; 406. Drain pipe; 407. Umbrella-shaped filter screen; 5. Filtration mechanism; 501. Second scale inhibitor; 502. Activator three; 503. Carbon filter; 6. Hydroelectric generator; 7. Solar photovoltaic panel; 8. First scale inhibitor; 9. Frame; 10. Descaling liquid tank; 1001. Control valve three; 1002. Inlet pump one; 1003. Spray pipe; 11. Scale inhibitor tank; 1101. Control valve four; 1102. Inlet pump two; 12. Controller; 13. Battery; 14. Algae removal and sterilization mechanism; 15. Rotary cleaning mechanism; 1501. Rotating head; 1502. Flushing pipe; 16. Evaporator cooling body; 17. Evaporator cooling water tank; 18. Evaporator cooling water pump; 19. Water supply pipe; 20. Second arc-shaped filter screen. Detailed Implementation

[0029] The present invention will be further described below with reference to the accompanying drawings:

[0030] The directional terms used in the detailed description paragraphs are only for the convenience of those skilled in the art to understand the technical solutions described in this application based on the visual orientation shown in the accompanying drawings. Unless otherwise expressly specified and limited, the terms "setting," "installation," "connection," etc., should be interpreted broadly, and those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0031] Example 1:

[0032] like Figures 3 to 7 As shown, the self-cleaning filter and sewage discharge mechanism includes a cyclone tank 301, which is preferably made of stainless steel. The bottom of the cyclone tank 301 is provided with a sewage discharge port, and the top of the cyclone tank 301 is provided with a liquid outlet 304. The upper part of the cyclone tank 301 is connected to a liquid inlet pipe 302 along the tangential direction. The cyclone tank 301 is essentially a cyclone filter. Under the action of the pump, cooling water enters the cyclone tank 301 along the tangential direction through the liquid outlet 304 to form a cyclone. Under the action of centrifugal force, some larger particles of impurities can be initially separated and discharged through the sewage discharge port, thereby improving the filtration efficiency. Under the action of centrifugal force, the filtered cooling water flows upward.

[0033] The upper part of the cyclone tank 301 is provided with a multi-layer filtration structure. Specifically, two or more layers of metal filter screens 306 are fixedly connected to the upper part of the cyclone tank 301. A carbon filter layer 305 is filled between adjacent metal filter screens 306. The metal filter screens 306 can further intercept small particulate impurities, and the carbon filter layer 305 has a rich pore structure, which can effectively adsorb odors, pigments and some small organic pollutants in the liquid, further purifying the cooling water.

[0034] A first arc-shaped filter 307 is located below the metal filter screen 306 and above the liquid inlet pipe 302. The first arc-shaped filter 307 filters the cooling water as it flows upward, removing larger particles. A rotary cleaning mechanism 15 is provided between the first arc-shaped filter 307 and the bottom metal filter screen 306, and a cleaning pipe 303 is connected to the rotary cleaning mechanism 15. The rotary cleaning mechanism 15 is used to periodically clean the first arc-shaped filter 307, removing dirt and impurities to ensure the continuity and stability of its filtration effect.

[0035] like Figure 5 As shown, the rotary cleaning mechanism 15 includes a rotary head 1501, with multiple evenly distributed flushing pipes 1502 connected to the circumference of the rotary head 1501. The end of each flushing pipe 1502 away from the rotary head 1501 bends downwards at an angle. The rotary head 1501 is rotatably connected to the cleaning pipe 303, and the cleaning pipe 303 is fixedly connected to the cyclone tank 301. By supplying water to the cleaning pipe 303, the flushing pipe 1502 can spray water onto the first arc-shaped filter screen 307. The downward bending of the flushing pipe 1502, combined with the reaction force of the water flow, enables the rotary head 1501 and the flushing pipes 1502 to rotate automatically without power, thereby more effectively removing dirt and impurities adhering to the filter screen.

[0036] The arc surface of the first arc-shaped filter screen 307 is bent away from the side of the rotating cleaning mechanism 15, which increases the filtration area and makes it easier for impurities to fall off when the rotating cleaning mechanism 15 is cleaning.

[0037] like Figure 6 and Figure 7 As shown, a filter tank 4 is located at the bottom of the drain outlet. The filter tank 4 is used to collect and filter out impurities such as soft scale, allowing the filtered water to be reused. Specifically, the filter tank 4 includes a tank shell 401, inside which is a pull-out filter basket 402. The filter basket 402 acts like a sieve, and this pull-out design facilitates regular cleaning of impurities inside the filter basket 402. At least two layers of metal filter mesh 404 are located at the bottom of the filter basket 402. The metal filter mesh 404 is fixedly connected to the inner wall of the filter tank 4. A carbon filter layer 405 is filled between adjacent metal filter meshes 404. The metal filter mesh 404 and the carbon filter layer 405 form a multi-layer filtration structure. The metal filter mesh 404 is used to intercept tiny particles in the water, and the carbon filter layer 405 utilizes the adsorption properties of activated carbon to deeply adsorb and purify the water. A drain pipe 406 is located at the bottom of the filter tank 4, and an umbrella-shaped filter screen 407 is fixedly connected to the drain pipe 406. In use, the drain pipe 406 is connected to the evaporative cooling water tank 17. That is, the purified water is filtered again through the umbrella-shaped filter screen 407 and then directly enters the evaporative cooling water tank 17 for recycling. The umbrella-shaped filter screen 407 is used to supplement the filtration and prevent impurities from entering the evaporative cooling water tank 17, thus ensuring the purity of the discharged liquid.

[0038] Example 2:

[0039] like Figures 1 to 8As shown, a descaling device includes a frame 9, which serves as the supporting structure for the entire device, providing a stable mounting base for other components. A first hydrocyclone 1, a second hydrocyclone 2, and the self-cleaning filter and sewage discharge mechanism 3 described in Embodiment 1 are fixedly connected to the frame 9. The first hydrocyclone 1 and the second hydrocyclone 2 are hydrocyclone separators. A second arc-shaped filter screen 20 is provided at the outlet of the first hydrocyclone 1, the second hydrocyclone 2, and the hydrocyclone tank 301. The outlet of the first hydrocyclone 1 is connected in sequence to a second strong magnetic scale-inhibiting ring and a first scale inhibitor 8 via a pipe. The first scale inhibitor 8 is a large strong magnetic scale inhibitor, capable of breaking large water molecule clusters into smaller water molecule clusters, effectively preventing calcium and magnesium ions in the liquid from forming scale and protecting the normal operation of subsequent equipment. The drain outlet of the first hydrocyclone 1 is connected to a drain pipe. The drain pipe of the first hydrocyclone 1 is equipped with an electromagnetic sand storage filter 102 and a drain valve. The end of the drain pipe is connected to the inlet of the second hydrocyclone 2. The outlet of the second hydrocyclone 2 is connected to the inlet pipe 302 through an activator 203 and a one-way valve 204. The drain outlet of the second hydrocyclone 2 is connected to a drain pipe. The drain pipe of the second hydrocyclone 2 is equipped with an electromagnetic sand storage filter 201 and a control valve 202. The end of the drain pipe is connected to a filter basket 402.

[0040] The outlet 304 of the self-cleaning filter and sewage discharge mechanism 3 is sequentially connected to the algae removal and sterilization mechanism 14 and the filter mechanism 5. The filter mechanism 5 includes a second scale inhibitor 501, an activator 502, and a carbon filter 503 connected in sequence. The second scale inhibitor 501 is a strong magnetic scale inhibitor. The algae removal and sterilization mechanism 14, the second scale inhibitor 501, the activator 502, and the carbon filter 503 are all existing technologies and are commercially available, so they will not be described in detail. A hydraulic generator 6 is provided at the outlet of the filter mechanism 5. The outlet of the hydraulic generator 6 is connected to the filter basket 402. The sewage discharge port of the cyclone tank 301 is provided with a sewage discharge pipe. The sewage discharge pipe of the cyclone tank 301 is provided with an electromagnetic sand storage filter 308 and a control valve 309. The outlet of this sewage discharge pipe is connected to the filter basket 402.

[0041] Electromagnetic sand storage filter 102, electromagnetic sand storage filter 201, and electromagnetic sand storage filter 308 have the same structure. They all include a sand storage cylinder, with electromagnets at both ends. When the electromagnets are energized, they can attract rust inside the sand storage cylinder. A heating cable is wrapped around the middle of the sand storage cylinder. In cold regions, the heating cable can heat the sand storage cylinder and prevent it from freezing.

[0042] In this embodiment, the cleaning pipe 303 is connected to the filter water tank 4 or the water supply system via a cleaning inlet pipe. A cleaning pump 310, an activator 311, and a one-way valve 312 are installed on the cleaning inlet pipe. Activating the cleaning pump 310 allows clean water or tap water filtered from the filter water tank 4 to be activated by the activator 311 and then fed into the cleaning pipe 303 and the rotating cleaning mechanism 15 to clean the first arc-shaped filter screen 307, thus improving the utilization rate of the filtered water.

[0043] This device does not require an external power supply. Specifically, a solar panel 7 is installed on the top of the frame 9, and a battery 13 is installed inside the frame 9. The hydroelectric generator 6 and the solar panel 7 are connected to the battery 13 through a rectifier and a charging controller. This connection method is existing technology and will not be described in detail. The above structure enables the battery 13 to be charged by solar energy, and during the evaporative cold descaling process, the hydroelectric generator 6 is driven by water circulation to charge the battery 13, allowing the entire device to operate normally without an external power source.

[0044] This device also has a liquid replenishment function. A water replenishment pipe 19 is connected to the cyclone tank 301. An activator and a one-way valve are installed on the water replenishment pipe 19. The water replenishment pipe 19 is connected to the water supply system through a pump. When the water level in the cyclone tank 301 is insufficient, the water supply system can replenish the cyclone tank 301.

[0045] like Figure 1 As shown, the frame 9 is also equipped with a descaling liquid tank 10 and a scale inhibition liquid tank 11. The bottom of the descaling liquid tank 10 is connected to a spray pipe 1003. The end of the spray pipe 1003 is connected to the original spray device of the evaporative cooler. The spray pipe 1003 is equipped with a control valve 1001 and an inlet pump 1002. When the evaporative cooler is initially descaled, that is, when the outside of the evaporative cooler is hard scale and inconvenient to clean, the descaling liquid tank 10 can be introduced into the spray pipe 1003 to help dissolve the hard scale into soft scale, improve the descaling efficiency, and facilitate subsequent treatment.

[0046] The scale inhibitor tank 11 is connected to the filter water tank 4 or the evaporative cooling water pool 17 through the control valve 4 1101 and the inlet pump 2 1102. The scale inhibitor enters the filter water tank 4 or the evaporative cooling water pool 17 to participate in circulation, which can prevent the formation of scale.

[0047] The device also includes a controller 12, and a battery 13 is connected to the controller 12 to supply power to the controller 12. The controller 12 is used to control multiple pumps and control valves in the device. The strong magnetic scale inhibitor and the strong magnetic scale inhibitor ring are existing technologies.

[0048] Working principle:

[0049] This utility model is used in conjunction with existing evaporative cooling equipment. The inlet pipe of the first hydrocyclone 1 is connected to the evaporative cooling water pump 18. A strong magnetic scale-resistant ring 101 is installed on the inlet pipe. The evaporative cooling water pump 18 is a water pump that comes with the evaporative cooling equipment. The evaporative cooling water pump 18 is connected to the evaporative cooling water tank 17.

[0050] During operation, the evaporative cooling equipment starts, i.e., the evaporative cooling water pump 18 starts, causing the water in the evaporative cooling water tank 17 to form a vortex. The circulating water, dirt, silt, and rust in the tank flow together into the No. 1 strong magnetic scale inhibitor ring 101 for scale inhibition treatment, and then into the first hydrocyclone 1 for the first filtration. After centrifugal separation, the filtered clean water flows upward through the second arc-shaped filter screen 20 for further filtration, and then enters the No. 2 strong magnetic scale inhibitor ring and the first scale inhibitor 8 for treatment, which breaks down large water molecule clusters into smaller water molecule clusters. Finally, it enters the spray system of the evaporative cooling equipment to spray and dissipate heat on the evaporative cooling pipes, thereby preventing the formation of hard scale and softening the hard scale on the evaporative cooling pipes until the hard scale falls off and enters the evaporative cooling water tank 17. This cycle is repeated many times, with the first hydrocyclone 1 continuously swirling to remove scale, rust, and mud.

[0051] Wastewater separated by centrifugation in the first hydrocyclone 1 enters the electromagnetic sand storage filter 102 under gravity. Under the action of strong magnetism, the electromagnetic sand storage filter 102 adsorbs rust and silt onto the tank wall. When the electromagnet is de-energized, the rust and silt are periodically discharged into the second hydrocyclone 2 along with the wastewater. The wastewater enters the second hydrocyclone 2 tangentially and is separated again by centrifugal force. The separated impurities flow downward into the electromagnetic sand storage filter 201 under gravity and are periodically discharged into the filter water tank 4 by the control valve 202. After being filtered and purified by the filter basket 402, the metal filter 404, and the carbon filter layer 405, it is filtered again by the umbrella-shaped filter 407 and flows back into the evaporation cold water pool 17.

[0052] The clean water separated and purified by the second hydrocyclone 2 is filtered through the second arc-shaped filter screen 20 and flows into the activator 203 for activation treatment. Then, it enters the hydrocyclone tank 301 through the one-way valve 204 for the third hydrocyclone separation. The separated impurities enter the electromagnetic sand storage filter 308 under the action of gravity. The electromagnetic sand storage filter 308 adsorbs rust and mud onto the tank wall under the action of strong magnetism. The control valve 309 can periodically discharge impurities and sewage into the filter water tank 4 for impurity separation and purification. A baffle is rotatably connected to the outer shell 401 of the water tank, and a handle 403 is fixedly connected to the baffle. The baffle can be opened by pulling the handle 403 outward. At this time, the filter basket 402 and the intercepted mud, sand, scale and impurities can be pulled out to achieve water-sludge separation. The water that has settled and filtered in the outer shell 401 of the water tank is filtered and purified by metal filter screen 404 and carbon filter layer 405, and then filtered again by umbrella-shaped filter screen 407 before flowing back into the evaporation cold water pool 17 for continued recycling.

[0053] After purification, the water in the cyclone tank 301 passes through the first arc-shaped filter 307, the metal filter 306, the carbon filter layer 305, the metal filter 306, and the second arc-shaped filter 20 for filtration and adsorption. Then, it flows into the algae removal and sterilization mechanism 14 for ultraviolet algae removal and sterilization treatment. After that, it flows into the second scale inhibitor 501 for strong magnetic scale inhibition, the activator 502 for activation treatment, and the carbon filter 503 for filtration and purification. Finally, it flows into the hydroelectric generator 6 for power generation and enters the filtered water tank 4.

[0054] When the water level in the cyclone tank 301 is insufficient and water needs to be added, the pump on the water supply pipe 19 is started. The pump is preferably a 24V pump, which uses tap water or well water to add water to the cyclone tank 301.

[0055] When the first arc-shaped filter screen 307 needs to be cleaned, the cleaning pump 310 is started when the evaporative cooling water system is stopped. Water can be supplied to the cleaning pipe 303 through the filter water tank 4 or the evaporative cooling water pool 17. The water is first activated by the activator 311 and then enters the cleaning pipe 303. It is sprayed out through the flushing pipe 1502 to flush the first arc-shaped filter screen 307. Under the reaction force of the water impact on the first arc-shaped filter screen 307, the rotating head 1501 will drive the flushing pipe 1502 to rotate at high speed, thereby flushing the first arc-shaped filter screen 307 in all aspects.

[0056] When performing evaporative cold spray descaling for the first time, the exterior of the evaporative cold spray is covered with hard scale, which is difficult to clean. By starting the control valve 1001 and the inlet pump 1002 through the controller 12, the descaling liquid can be introduced into the spray pipe 1003. This helps to dissolve the hard scale into soft scale, which is then ready for subsequent treatment.

[0057] A water quality analyzer is installed in the filter water tank 4 or the evaporative cooling water pool 17. The water quality analyzer is connected to the controller 12. The controller 12 can start the control valve 1101 and the liquid inlet pump 1102 according to the test results of the analyzer, so that the scale inhibitor liquid is introduced into the filter water tank 4 or the evaporative cooling water pool 17 to participate in the circulation, which can prevent the formation of scale.

[0058] Finally, although this specification describes embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for 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 embodiments that can be understood by those skilled in the art.

Claims

1. A self-cleaning filter and sewage discharge mechanism, comprising a cyclone tank (301), a sewage discharge port at the bottom of the cyclone tank (301), a liquid outlet (304) at the top of the cyclone tank (301), and a liquid inlet pipe (302) connected tangentially to the upper part of the cyclone tank (301), characterized in that: At least two layers of metal filter screens (306) are fixedly connected to the upper part of the cyclone tank (301). A carbon filter layer (305) is filled between adjacent metal filter screens (306). A first arc-shaped filter screen (307) is provided below the metal filter screens (306). The first arc-shaped filter screen (307) is located above the liquid inlet pipe (302). A rotating cleaning mechanism (15) is provided between the first arc-shaped filter screen (307) and the metal filter screens (306) located at the bottom. A cleaning pipe (303) is connected to the rotating cleaning mechanism (15).

2. The self-cleaning filter and sewage discharge mechanism according to claim 1, characterized in that: The rotary cleaning mechanism (15) includes a rotary head (1501), and a plurality of evenly distributed flushing pipes (1502) are connected to the circumference of the rotary head (1501). The end of the flushing pipe (1502) away from the rotary head (1501) is arranged to transition obliquely downward. The rotary head (1501) is rotatably connected to the cleaning pipe (303), and the cleaning pipe (303) is fixedly connected to the cyclone tank (301).

3. The self-cleaning filter and sewage discharge mechanism according to claim 2, characterized in that: The arc of the first arc-shaped filter (307) is bent on the side away from the rotating cleaning mechanism (15).

4. The self-cleaning filter and sewage discharge mechanism according to any one of claims 1 to 3, characterized in that: A filter tank (4) is provided at the bottom of the drain outlet. The filter tank (4) includes a tank shell (401). Inside the tank shell (401) is a pull-out filter basket (402). At least two layers of metal filter mesh (404) are provided at the bottom of the filter basket (402). The metal filter mesh (404) is fixedly connected to the inner wall of the filter tank (4). A carbon filter layer (405) is filled between adjacent metal filter meshes (404). A drain pipe (406) is provided at the bottom of the filter tank (4). An umbrella-shaped filter mesh (407) is fixedly connected to the drain pipe (406).

5. A descaling device, comprising a frame (9), characterized in that: The frame (9) is fixedly connected to a first hydrocyclone (1), a second hydrocyclone (2) and a self-cleaning filter and sewage discharge mechanism (3) as described in claim 4. The outlet of the first hydrocyclone (1) is provided with a first scale inhibitor (8). The sewage discharge port of the first hydrocyclone (1) is connected to the inlet port of the second hydrocyclone (2). The outlet of the second hydrocyclone (2) is connected to the inlet pipe (302) through an activator (203) and a one-way valve (204). The sewage discharge port of the second hydrocyclone (2) is connected to the filter basket (402). The outlet (304) is connected in sequence to an algae removal and sterilization mechanism (14) and a filter mechanism (5). The outlet of the filter mechanism (5) is connected to the filter basket (402). The sewage discharge port of the hydrocyclone tank (301) is connected to the filter basket (402).

6. The descaling device according to claim 5, characterized in that: The first hydrocyclone (1) is equipped with an electromagnetic sand storage filter 1 (102) and a drain valve on its drain pipe. The second hydrocyclone (2) is equipped with an electromagnetic sand storage filter 2 (201) and a control valve 1 (202) on its drain pipe. The hydrocyclone tank (301) is equipped with an electromagnetic sand storage filter 3 (308) and a control valve 2 (309) on its drain pipe. The first hydrocyclone (1), the second hydrocyclone (2), and the hydrocyclone tank (301) are all equipped with a second arc-shaped filter screen (20) at their liquid outlets.

7. The descaling device according to claim 6, characterized in that: The cleaning pipe (303) is connected to the filter water tank (4) or the water supply system through the cleaning liquid inlet pipe. The cleaning liquid inlet pipe is equipped with a cleaning pump (310), activator II (311) and check valve II (312).

8. The descaling device according to claim 7, characterized in that: The top of the frame (9) is equipped with a solar photovoltaic panel (7), and a storage battery (13) is installed inside the frame (9). A hydro generator (6) is installed at the outlet of the filter mechanism (5), and the hydro generator (6) and / or the solar photovoltaic panel (7) are connected to the storage battery (13).

9. The descaling device according to claim 8, characterized in that: A water supply pipe (19) is connected to the cyclone tank (301), and the water supply pipe (19) is connected to the water supply system through a pump.

10. The descaling device according to claim 9, characterized in that: The frame (9) is equipped with a descaling liquid tank (10) and a scale inhibition liquid tank (11). The bottom of the descaling liquid tank (10) is connected to a spray pipe (1003). The spray pipe (1003) is equipped with a control valve three (1001) and an inlet pump one (1002). The scale inhibition liquid tank (11) is connected to the filter water tank (4) or the evaporative cold water pool (17) through the control valve four (1101) and the inlet pump two (1102).

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