Integrated activated carbon water purification device with backwashing function

Abstract

The utility model provides an integrated activated carbon water purifying device with a backwashing function, which comprises an activated carbon filtering cabin, a heat exchange cabin, a first water cabin and a second water cabin, and a backwashing water filtering cabin is arranged between the first water cabin and the second water cabin; a first connecting hole and a second connecting hole are respectively formed in the top end and the bottom end of the activated carbon filtering cabin, the first connecting hole is connected with the first water cabin, and the second connecting hole is connected with the second water cabin through a backwashing water pump; and an air heat energy pump for heating an output object of the backwashing water pump is arranged in the heat exchange cabin. According to the utility model, an integrated structure is adopted, the activated carbon filtering cabin and other cabins for realizing a backwashing function are integrated, and the backwashing water filtering cabin is utilized, so that backwashing water is recycled, and the total water consumption during backwashing is reduced; separation of impurities and the water purification filter material layer is promoted through the air energy heat pump, the ozone generator, the sound wave generator and the like, the backwashing effect is improved, and hardening failure of the water purification filter material layer is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to water treatment equipment technical field especially is related to a integrated activated carbon purifier with backwashing function. BACKGROUND

[0002] In the high-tech industry such as crystalline silicon, the quality of pure water is directly related to the performance and quality of products. Generally, due to the large amount of pure water, the wafer factory will set up a pure water treatment system to replace the purchase of pure water and reduce the production cost. In the pure water treatment system, an activated carbon purifier is usually arranged to purify water. The activated carbon filter material in the activated carbon purifier can not only filter the solid impurities in raw water, but also can absorb the oily impurities in raw water, and has good water purification effect.

[0003] However, with the use of the activated carbon purifier, the deposition amount of solid impurities and the adsorption amount of oily impurities gradually increase, which reduces the speed of water passing through the activated carbon filter material, reduces the adsorption amount of oily impurities in the incoming raw water, and greatly reduces the water purification efficiency and effect. In severe cases, it can also cause the activated carbon filter material to be hardened and fail.

[0004] To solve the above problems, the field uses a regular backwashing method to clean the activated carbon filter material to prolong its service life and improve its water purification efficiency and effect. Backwashing is to pass backwashing water from the water purification side of the activated carbon filter material (referring to the water purification side in the water purification process) to flush the activated filter material against the water purification flow direction. The impurities that cannot pass through the activated carbon filter material are carried away by the backwashing water and discharged from the raw water side of the activated carbon filter material (referring to the raw water side in the water purification process). In the above backwashing process, backwashing water needs to be continuously passed in, and in order to ensure the backwashing effect, the backwashing water needs to use purified water, which will consume a large amount of purified water and increase the backwashing cost. In addition, only through the flushing action of purified water, it is difficult to remove the adsorption of oily impurities and activated carbon filter material, and it is difficult to effectively solve the problem of the decrease of water purification effect and the hardening of activated carbon filter material caused by the accumulation of oily impurities. CONTENT OF THE UTILITY MODEL

[0005] The utility model aims at providing a integrated activated carbon purifier with backwashing function to solve the problems in the background art.

[0006] The technical scheme of the utility model comprises: a integrated activated carbon purifier with backwashing function, which comprises an activated carbon filter cabin, a heat exchange cabin, a first water cabin and a second water cabin, a backwashing water filter cabin is arranged between the first water cabin and the second water cabin; the top and bottom ends of the activated carbon filter cabin are respectively provided with a first connecting hole and a second connecting hole, the first connecting hole is connected with the first water cabin, and the second connecting hole is connected with the second water cabin through a backwashing water pump; and an air heat energy pump for heating the output of the backwashing water pump is arranged in the heat exchange cabin.

[0007] Furthermore, the bottom of the activated carbon filter chamber is provided with a third connection hole, which is connected to an ozone generator located on its outside; the first water chamber is provided with an exhaust hole, which is connected to an ozone destroyer located on its outside.

[0008] Furthermore, the activated carbon filter chamber includes an activated carbon filter chamber top plate, an activated carbon filter chamber bottom plate, and an activated carbon filter chamber side plate for connecting the two. A first material separator filter screen is configured between the activated carbon filter chamber top plate and the activated carbon filter chamber bottom plate. The first material separator filter screen is detachably connected to the activated carbon filter chamber side plate in the side direction, and a water purification filter media layer is configured below it. A sound wave generator corresponding to the position of the water purification filter media layer is configured on the activated carbon filter chamber side plate.

[0009] Furthermore, the activated carbon filter chamber is provided with a water inlet, a water outlet, a packing hole, and a first material replacement hole. The water inlet and the packing hole are located above the first material separating filter screen, and the water outlet and the first material replacement hole are located below the first material separating filter screen.

[0010] Furthermore, the water purification filter layer is an acid-modified activated carbon layer.

[0011] Furthermore, the heat exchange chamber includes a heat exchange chamber bottom plate located below the activated carbon filter chamber and a heat exchange chamber side plate for connecting the heat exchange chamber bottom plate and the activated carbon filter chamber, and the heat exchange chamber side plate is provided with a plurality of heat exchange holes.

[0012] Furthermore, the first connection hole is connected to the first water tank through the first water supply pipe, and the two ends of the backwash water pump are connected to the second water tank and the second connection hole through the second water supply pipe and the third water supply pipe, respectively. The first water supply pipe and the third water supply pipe are equipped with on / off valves, pressure gauges, flow meters and / or TOC instruments; the water purification device is provided with a connection compartment for accommodating the backwash water pump, the first water supply pipe, the second water supply pipe and / or the third water supply pipe.

[0013] Furthermore, the backwash water filtration chamber is configured with:

[0014] The first compartment filter screen used to separate the backwash water filter chamber and the first water chamber.

[0015] The second compartment filter screen is used to separate the backwash water filter chamber and the second water chamber.

[0016] A second separating filter screen is located between the first compartment filter screen and the second compartment filter screen, and backwash water filter media layers are respectively formed on both sides of the second separating filter screen.

[0017] In addition, at least a portion of the pores correspond to the second material exchange pores of the backwash water filter media layer.

[0018] Furthermore, the backwash water filter media layer includes at least a fiber filter cloth layer and a polyurethane activated carbon honeycomb sponge layer, with the fiber filter cloth layer located above the polyurethane activated carbon honeycomb sponge layer.

[0019] Furthermore, the second water tank is provided with a water inlet and a drain outlet, with the drain outlet located at the bottom of the second water tank.

[0020] The beneficial effects of this utility model are as follows: This activated carbon water purification device adopts an integrated structure, which integrates the activated carbon filter chamber and other chambers that realize the backwashing function. By utilizing the backwash water filter chamber, the backwash water can be recycled, reducing the total water consumption during backwashing, reducing costs, and saving water resources. Through air source heat pumps, ozone generators, and sound wave generators, the separation of impurities from the water purification filter layer is promoted, especially the desorption and decomposition of stubborn oil and dirt impurities, which improves the backwashing effect, avoids the decline in the water purification effect of the water purification filter layer or its failure due to caking, and extends its service life. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0022] Figure 2 This is a schematic diagram of the activated carbon filter chamber and heat exchange chamber in an embodiment of this utility model;

[0023] Figure 3 This is a schematic diagram of the backwash water filter chamber in an embodiment of this utility model.

[0024] In the diagram: 1. Activated carbon filter chamber; 1.1. Top plate of activated carbon filter chamber; 1.11. Packing hole; 1.2. Bottom plate of activated carbon filter chamber; 1.21. Second connection hole; 1.22. Third connection hole; 1.3. Side plate of activated carbon filter chamber; 1.31. Water inlet; 1.32. Water outlet; 1.33. First material replacement hole; 1.34. First connection hole; 1.4. First separator filter screen; 1.5. Water purification filter media layer;

[0025] 2. Heat exchange chamber; 2.1. Heat exchange chamber bottom plate; 2.2. Heat exchange chamber side plate;

[0026] 3. Connecting compartment;

[0027] 4. First water tank; 4.1. Vent vent;

[0028] 5. Second water tank; 5.1 Water inlet hole; 5.2 Drain hole;

[0029] 6. Backwash water filtration chamber; 6.1. First compartment filter screen; 6.2. Second compartment filter screen; 6.3. Second material separation filter screen; 6.4. Backwash water filter media layer; 6.41. Fiber filter cloth layer; 6.42. Polyurethane activated carbon honeycomb sponge layer; 6.5. Second material replacement port;

[0030] 7. Air source heat pump;

[0031] 8. Backwash water pump;

[0032] 9. Ozone generator;

[0033] 10. Sound wave generator;

[0034] 11. Ozone destroyer;

[0035] 12. First water supply pipe;

[0036] 13. Second water supply pipe;

[0037] 14. Third water supply pipe;

[0038] 15. On / off valve;

[0039] 16. Pressure gauge;

[0040] 17. Flow meter;

[0041] 18. TOC instrument. Detailed Implementation

[0042] The technical solution of this utility model will be clearly and completely described below with reference to its embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0043] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0044] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0045] Reference Appendix Figure 1 This embodiment provides an integrated activated carbon water purification device with backwashing function, which includes an activated carbon filter chamber 1, a heat exchange chamber 2, a connecting chamber 3, a first water chamber 4, a second water chamber 5, and a backwash water filter chamber 6. The heat exchange chamber 2 is located at the bottom of the activated carbon filter chamber 1, and the connecting chamber 3 is located to the side of the activated carbon filter chamber 1 and the heat exchange chamber 2. The first water chamber 4, the backwash water filter chamber 6, and the second water chamber 5 are all located on the other side of the connecting chamber 3, and the three are arranged in descending order of height, that is, the backwash water filter chamber 6 is located between the first water chamber 4 and the second water chamber 5. An air source heat pump 7 is configured in the heat exchange chamber 2, and an air source heat pump 7 is configured in the connecting chamber 3. The backwash water pump 8 and the pipes for connecting related compartments are provided. The top and bottom ends of the activated carbon filter compartment 1 are respectively provided with a first connection hole 1.34 and a second connection hole 1.21. The first connection hole 1.34 is connected to the first water compartment 4, and the second connection hole 1.21 is connected to the second water compartment 5 through the backwash water pump 8. The air source heat pump 7 is used to heat the output of the backwash water pump 8. The second water compartment 5 is provided with a water inlet hole 5.1 and a drain hole 5.2. The drain hole 5.2 is located at the bottom of the second water compartment 5. When the water level of the second water compartment 5 is low, the water inlet hole 5.1 can be opened to replenish water. The drain hole can be used for periodic water replacement of the second water compartment 5.

[0046] In this embodiment, the structure of the activated carbon filter chamber 1 and the water flow direction during the water purification process are the same as in the prior art. Specifically, the activated carbon filter chamber 1 is filled with a water purification filter layer 1.5 (containing activated carbon). The raw water to be purified flows into the water purification filter layer 1.5 from the top. After filtration and adsorption by the water purification filter layer 1.5, the purified water flows out from the bottom of the water purification filter layer 1.5. After prolonged purification of raw water, a large amount of solid and oily impurities will accumulate in the water purification filter layer 1.5, significantly reducing its purification efficiency and effect. At this time, the backwash water pump 8 can continuously input the backwash water (purified water) pre-stored or temporarily added in the second water chamber 5 into the activated carbon filter chamber 1 through the second connection hole 1.21, causing the backwash water to flow from bottom to top, backwashing the water purification filter layer 1.5, and discharging the solid and oily impurities along with the backwash water through the first connection hole 1.34. The backwash water containing the aforementioned impurities enters the first water chamber 4. Due to gravity, it flows downward spontaneously and is filtered by the backwash water filter chamber 6 before re-entering the second water chamber 5 for recycling. This reduces the amount of backwash water consumed during the entire backwashing process and lowers costs. Furthermore, after being output by the backwash water pump 8, the backwash water can be heated by the air-source heat pump 7. The heated backwash water then enters the activated carbon filter chamber 1, which promotes the de-adsorption of oily impurities and activated carbon substances in the water purification filter layer 1.5, thereby improving the backwashing effect.

[0047] Reference Appendix Figure 2 The activated carbon filter chamber 1 includes an activated carbon filter chamber top plate 1.1, an activated carbon filter chamber bottom plate 1.2, and an activated carbon filter chamber side plate 1.3 for connecting the two. A first material separator filter screen 1.4 is configured between the activated carbon filter chamber top plate 1.1 and the activated carbon filter chamber bottom plate 1.2. The first material separator filter screen 1.4 is detachably connected to the activated carbon filter chamber side plate 1.3 in the side direction. The water purification filter layer 1.5 is configured below the first material separator filter screen 1.4. The first material separator filter screen 1.4 can prevent activated carbon substances in the water purification filter layer 1.5 from being washed away by the backwash water flow during backwashing, thereby reducing the content loss of the water purification filter layer 1.5. However, in actual production, due to long-term water erosion, it is difficult to guarantee zero loss of the water purification filter media layer 1.5. Therefore, a packing hole 1.11 can be constructed on the activated carbon filter chamber 1 to replenish the material. Alternatively, a first material replacement hole 1.33 can be constructed on the activated carbon filter chamber 1 to discharge the water purification filter media layer 1.5 after it has been used for a long time and has failed, and then new material can be filled in through the packing hole 1.11.

[0048] To achieve the basic functions of the activated carbon filter chamber 1, an inlet hole 1.31 and an outlet hole 1.32 are essential. The inlet hole 1.31 is used to introduce the raw water to be purified, and the outlet hole 1.32 is used to output the purified water. Therefore, the inlet hole 1.31 and the outlet hole 1.32 should be located on the upper and lower sides of the first separating filter screen 1.4, respectively, so that the raw water can be fully purified by the water purification filter media layer 1.5 below the first separating filter screen 1.4. To facilitate filling and replacement of the filter media, the filling hole 1.11 and the first replacement hole 1.33 are also located on the upper and lower sides of the first separating filter screen 1.4, respectively. (The attached diagram of this embodiment is not included in the provided text.) Figure 2 In this example, the packing hole 1.11 is disposed on the top plate 1.1 of the activated carbon filter chamber, the water inlet hole 1.31 is disposed on the upper part of the side plate 1.3 of the activated carbon filter chamber, and the water outlet hole 1.32 and the first material replacement hole 1.33 are disposed on the lower part of the side plate 1.3 of the activated carbon filter chamber. However, those skilled in the art can also adapt the positions of the above holes according to actual needs, and no specific limitation is made here.

[0049] Furthermore, this utility model specifically selects an air-source heat pump 7 to heat the backwash water. The air-source heat pump 7 can transfer the heat of the air in the silicon wafer production plant (heating the air due to heat dissipation from other equipment in the plant) to the backwash water output by the backwash water pump 8, which can greatly reduce the energy consumption of backwashing. To facilitate heat exchange, the heat exchange chamber 2 can be configured to include a heat exchange chamber bottom plate 2.1 located below the activated carbon filter chamber 1 and a heat exchange chamber side plate 2.2 for connecting the heat exchange chamber bottom plate 2.1 and the activated carbon filter chamber 1. The heat exchange chamber side plate 2.2 is provided with several heat exchange holes. Through the heat exchange chamber side plate 2.2 with the perforated plate design, the air outside the heat exchange chamber 2 (the air in the silicon wafer production plant) and the air inside the heat exchange chamber 2 can circulate with each other, efficiently transferring air heat energy to the air-source heat pump 7, improving the heating efficiency of the backwash water, and cooling the environment inside the plant at the same time.

[0050] In addition to heating the backwash water, this embodiment also includes an ozone generator 9 and a sound wave generator 10 to improve the desorption effect of oily impurities on the water purification filter media layer 1.5. (See attached document.) Figure 2 The activated carbon filter chamber bottom plate 1.2 is provided with a third connection hole 1.22, which is connected to the ozone generator 9 located on its outside. The first water chamber 4 is provided with an exhaust hole 4.1, which is connected to the ozone destroyer 11 located on its outside. The sound wave generator 10 is provided on the activated carbon filter chamber side plate 1.3 and corresponds to the position of the water purification filter layer 1.5.

[0051] The third connection hole 1.22 is located at the bottom of the water purification filter layer 1.5. Ozone generated by the ozone generator 9 enters the activated carbon filter chamber 1 through the third connection hole 1.22 and diffuses from bottom to top, increasing the contact area between ozone and backwash water. Utilizing the oxidizing properties of ozone, it decomposes the organic matter flushed down by the backwash water, reducing its adsorption force on the water purification filter layer 1.5 and improving the water quality of the backwash water to meet the requirements of recycling. Meanwhile, the ozone destroyer 11 absorbs excess ozone, preventing it from remaining in the backwash water and affecting subsequent treatment processes, while also preventing ozone from escaping and harming the environment or human health. To improve the integration of this water purification device, the ozone generator 9 can be placed in the heat exchange chamber 2.

[0052] To prevent the activated carbon in the water purification filter layer 1.5 from having its structural integrity damaged by ozone during backwashing, an acid-modified activated carbon layer can be used as the water purification filter layer 1.5. As the name suggests, the acid-modified activated carbon layer contains activated carbon that has undergone acid modification treatment. The acidic functional groups (such as carboxyl groups) introduced into the activated carbon can, to a certain extent, regulate the surface charge and chemical activity of the activated carbon, making it more selective in adsorbing ozone and reducing the damage of ozone to the activated carbon structure.

[0053] The acoustic generator 10, corresponding to the position of the water purification filter media layer 1.5, generates acoustic waves of a specific frequency during operation. These acoustic waves propagate in the water, causing water molecules to vibrate. This vibration effect is transmitted to solid impurities and oily impurities, weakening their adsorption or binding forces. Especially for oily impurities adsorbed on the inner wall of the activated carbon filter chamber 1 or on the water purification filter media layer 1.5, the acoustic vibration can disrupt the original adsorption balance, causing the oily impurities to detach from their adsorption sites and redisperse in the water. This makes it easier for ozone to decompose them or for them to be carried away with the backwash water. At the same time, the acoustic vibration can also reduce the adsorption of ozone by the activated carbon, preventing it from affecting the subsequent water purification efficiency of the activated carbon. In practice, by adjusting the frequency and power of the acoustic generator 10, precise desorption effects can be achieved for impurities of different types and sizes, further optimizing the backwashing capability of this device.

[0054] To facilitate control of backwashing efficiency and adjust backwashing effect, in this embodiment, the first connection hole 1.34 is connected to the first water tank 4 via the first water supply pipe 12. The two ends of the backwash water pump 8 are connected to the second water tank 5 and the second connection hole 1.21 via the second water supply pipe 13 and the third water supply pipe 14, respectively. The first water supply pipe 12, the second water supply pipe 13, and the third water supply pipe 14 are at least partially located in the connection chamber 3. The first water supply pipe 12 and the third water supply pipe 14 are equipped with on / off valves 15, pressure gauges 16, flow meters 17, and TOC meters 18, etc. Through an external programmable controller or by connecting to the existing industrial control computer in the plant, the flow rate and internal pressure of the backwash water, as well as the water quality of the backwash water, can be monitored and controlled in real time to improve the automation level and quality of the backwashing operation. The ozone generator 9 can also be connected to the third connection hole 1.22 via a Venturi flow meter 17 (not shown in the figure) to monitor and adjust the ozone input.

[0055] Reference Appendix Figure 3 In this embodiment, the backwash water filter chamber 6 is configured with: a first compartment filter 6.1 for separating the backwash water filter chamber 6 and the first water chamber 4; a second compartment filter 6.2 for separating the backwash water filter chamber 6 and the second water chamber 5; and a second material separation filter 6.3 located between the first compartment filter 6.1 and the second compartment filter 6.2. Backwash water filter media 6.4 are respectively configured on both sides of the second material separation filter 6.3. The side wall of the backwash water filter chamber 6 is also configured with second material exchange holes 6.5, at least partially corresponding to the backwash water filter media 6.4. The first compartment filter 6.1 and the second compartment filter 6.2 are used to prevent the backwash water filter media 6.4 from being impacted by backwash water and freely diffused into the first water chamber 4 or the second water chamber 5, thereby causing blockage of related pipes, etc. The second separator filter 6.3 is used to separate adjacent backwash water filter media layers 6.4. The backwash water filter media layers 6.4 on both sides of the second separator filter 6.3 can be the same or different. The number of the second separator filter 6.3 and the backwash water filter media layers 6.4 can also be configured according to actual usage requirements. This embodiment only shows an exemplary scheme with one second separator filter 6.3 and two backwash water filter media layers 6.4. The two backwash water filter media layers 6.4 are located on the top and bottom sides of the second separator filter 6.3, respectively. The backwash water filter media layer 6.4 at the top is a fiber filter cloth layer 6.41 for filtration, and the backwash water filter media layer 6.4 at the bottom is a polyurethane activated carbon honeycomb sponge layer 6.42 for filtration and adsorption of impurities.

[0056] When cleaning the backwash water filter chamber 6 is required, the fiber filter cloth layer 6.41 can be removed from the second material replacement hole 6.5 for cleaning or replacement. Because of its upper position, this is convenient and will not cause excessive interference to the lower polyurethane activated carbon honeycomb sponge layer 6.42. As for the polyurethane activated carbon honeycomb sponge layer 6.42, due to its inherent strength and elasticity, after long-term use, adsorbed impurities can be removed through gentle cleaning, restoring some of its adsorption performance. This layered design reduces the maintenance and replacement costs of the backwash water filter media layer 6.4, and the two layers work together to extend their respective service lives, ensuring the long-term stable operation of the backwash water filter chamber 6. This continuously plays a crucial role in the efficient backwashing of the entire integrated activated carbon water purification device, effectively guaranteeing the water purification effect.

[0057] This integrated activated carbon water purification device adopts an integrated design. Each chamber, connecting pipe, first compartment filter 6.1, second compartment filter 6.2, and second separation filter 6.3 can be made of 316 stainless steel and welded together. The first separation filter 1.4 is made of 316 stainless steel and can adopt a multi-piece splicing structure. The splicing method is riveting. The outer periphery is fixed to the inner wall of the activated carbon filter chamber side plate 1.3 by snaps, which facilitates disassembly when adding water purification filter media layer 1.5.

[0058] It is worth noting that the air source heat pump 7, ozone generator 9, ozone destroyer 11, and sound wave generator 10 mentioned above are all mature technologies, and their structures will not be described in detail in this embodiment. Valves can be installed at the locations of the water inlet 1.31, water outlet 1.32, water supply hole 5.1, water drain hole 5.2, packing hole 1.11, first material replacement hole 1.33, and second material replacement hole 6.5 as needed to control their opening and closing. Manual inspection ports can be added to the side walls of each compartment to facilitate equipment maintenance at any time. All valves and manual inspection ports are sealed using gaskets or sealing packing.

[0059] The following describes the various operating conditions of this integrated activated carbon water purification device:

[0060] During water purification: the backwash water pump 8, air source heat pump 7, ozone generator 9, ozone destroyer 11 and sound wave generator 10 are turned off, the valves of the first water supply pipe 12 and the third water supply pipe 14 are closed, the water inlet 1.31 and water outlet 1.32 of the activated carbon filter chamber 1 are opened, the raw water to be purified is input from the water inlet 1.31, passes through the first separator filter screen 1.4 and the water purification filter layer 1.5 in sequence, and the purified water is output from the water outlet 1.32.

[0061] During backwashing: Taking the case where there is sufficient backwash water in the second water tank 5 as an example, the inlet 1.31 and outlet 1.32 of the activated carbon filter chamber 1 are closed. The backwash water pump 8, air source heat pump 7, ozone generator 9, ozone destroyer 11 and sound wave generator 10 are started. The valves of the first water supply pipe 12, the second water supply pipe 13 and the third water supply pipe 14 are opened. The backwash water in the second water tank 5 passes through the second water supply pipe 13, the backwash water pump 8 and the third outlet pipe in sequence, and then enters the activated carbon filter chamber 1 from the second connection hole 1.21. Under the flushing of the backwash water flow and the assistance of ozone and sound waves, the backwash water carries away the solid impurities and oily impurities accumulated on the water purification filter layer 1.5. Then the backwash water is output from the first connection hole 1.34, and then passes through the first water supply pipe 12, the first water tank 4 and the backwash water filter chamber 6 in sequence, and returns to the second water tank 5 for recycling.

[0062] During forward washing: After backwashing, referring to the opening and closing status of each instrument and valve during water purification as described above, clean water is input from the inlet 1.31 of the activated carbon filter chamber 1 and output from the outlet 1.32 of the activated carbon filter chamber 1 to flush away impurities that may be introduced into the water purification filter media layer 1.5 by the recycled backwash water.

[0063] Compared with the prior art, the beneficial effects of this utility model are as follows: This activated carbon water purification device adopts an integrated structure, integrating the activated carbon filter chamber 1 and other chambers that realize the backwashing function, and utilizing the backwash water filter chamber 6 to recycle the backwash water, reducing the total water consumption during backwashing, reducing costs and saving water resources; through the air source heat pump 7, ozone generator 9, sound wave generator 10, etc., the separation of impurities from the water purification filter layer 1.5 is promoted, especially the desorption and decomposition of stubborn oily impurities, improving the backwashing effect, avoiding the decline of the water purification effect or caking failure of the water purification filter layer 1.5, and extending its service life.

[0064] The above are preferred embodiments of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. An integrated activated carbon water purification device with backwashing function, characterized in that, The device includes an activated carbon filter chamber, a heat exchange chamber, a first water chamber, and a second water chamber. A backwash water filter chamber is configured between the first water chamber and the second water chamber. The activated carbon filter chamber has a first connection hole and a second connection hole at its top and bottom ends, respectively. The first connection hole connects to the first water chamber, and the second connection hole connects to the second water chamber through a backwash water pump. An air heat pump for heating the output of the backwash water pump is configured in the heat exchange chamber.

2. The integrated activated carbon water purification device with backwashing function according to claim 1, characterized in that, The bottom of the activated carbon filter chamber is provided with a third connection hole, which is connected to an ozone generator located on its outside; the first water chamber is provided with an exhaust hole, which is connected to an ozone destroyer located on its outside.

3. The integrated activated carbon water purification device with backwashing function according to claim 1 or 2, characterized in that, The activated carbon filter chamber includes a top plate, a bottom plate, and a side plate for connecting the two. A first material separator is disposed between the top plate and the bottom plate. The first material separator is detachably connected to the side plate and has a water purification filter layer disposed below it. A sound wave generator is disposed on the side plate corresponding to the position of the water purification filter layer.

4. The integrated activated carbon water purification device with backwashing function according to claim 3, characterized in that, The activated carbon filter chamber is provided with a water inlet, a water outlet, a packing hole, and a first material replacement hole. The water inlet and the packing hole are located above the first material separating filter screen, and the water outlet and the first material replacement hole are located below the first material separating filter screen.

5. The integrated activated carbon water purification device with backwashing function according to claim 3, characterized in that, The water purification filter media layer is an acid-modified activated carbon layer.

6. The integrated activated carbon water purification device with backwashing function according to any one of claims 1-2 and 4-5, characterized in that, The heat exchange chamber includes a heat exchange chamber bottom plate located below the activated carbon filter chamber and a heat exchange chamber side plate for connecting the heat exchange chamber bottom plate and the activated carbon filter chamber. The heat exchange chamber side plate is provided with a plurality of heat exchange holes.

7. The integrated activated carbon water purification device with backwashing function according to claim 6, characterized in that, The first connection hole is connected to the first water tank through the first water supply pipe. The two ends of the backwash water pump are connected to the second water tank and the second connection hole through the second water supply pipe and the third water supply pipe, respectively. The first water supply pipe and the third water supply pipe are equipped with on / off valves, pressure gauges, flow meters and / or TOC instruments. The water purification device is provided with a connection compartment for accommodating the backwash water pump, the first water supply pipe, the second water supply pipe and / or the third water supply pipe.

8. The integrated activated carbon water purification device with backwashing function according to any one of claims 1-2, 4-5, and 7, characterized in that, The backwash water filtration chamber is configured with: The first compartment filter screen used to separate the backwash water filter chamber and the first water chamber. The second compartment filter screen is used to separate the backwash water filter chamber and the second water chamber. A second separating filter screen is located between the first compartment filter screen and the second compartment filter screen, and backwash water filter media layers are respectively formed on both sides of the second separating filter screen. In addition, at least a portion of the pores correspond to the second material exchange pores of the backwash water filter media layer.

9. The integrated activated carbon water purification device with backwashing function according to claim 8, characterized in that, The backwash water filter media layer includes at least a fiber filter cloth layer and a polyurethane activated carbon honeycomb sponge layer, with the fiber filter cloth layer located above the polyurethane activated carbon honeycomb sponge layer.

10. The integrated activated carbon water purification device with backwashing function according to any one of claims 1-2, 4-5, 7, and 9, characterized in that, The second water tank is provided with a water inlet and a drain outlet, with the drain outlet located at the bottom of the second water tank.

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