Filter and water purifier

Abstract

This invention discloses a filter and a water purifier, belonging to the field of wastewater treatment technology. The filter includes an inlet vertical flow section, a water distribution tank, a filtration zone, a water collection zone, a clear water cylinder, and an outlet / backwash pipe. The water distribution tank is located above the filtration zone, and the water collection zone is located below the filtration zone. The outlet end of the inlet vertical flow section is connected to the water distribution tank, which has multiple water distribution holes. The clear water cylinder is located in the water collection zone and the filtration zone, and the outlet / backwash pipe is connected to the clear water cylinder. The water purifier includes a filter, a vortex reaction zone, a preliminary suspension clarification zone, an inclined tube sedimentation zone, a secondary suspension clarification zone, and a sludge chamber. The filtration zone of the filter is used to filter wastewater. The vortex reaction zone of the water purifier promotes flocculation in wastewater containing chemicals. The inclined tube sedimentation zone is used to filter wastewater. The filter, vortex reaction zone, and inclined tube sedimentation zone work together to treat wastewater, thereby further improving the wastewater purification effect of the water purifier with the filter.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment technology, specifically to filters and water purifiers. Background Technology

[0002] Wastewater treatment involves the removal of suspended solids, turbidity, colloids, and other pollutants. Conventional multi-media filters, self-cleaning filters, filter cloth filters, microfiltration membrane filters, and vacuum filtration have good filtration effects, but some have poor cleaning effects, some require additional pump energy, and some have limited functions, large footprint, high cost, and high operating expenses. Summary of the Invention

[0003] The purpose of this invention is to solve at least one problem in the prior art by providing a filter and a water purifier.

[0004] In a first aspect, the present invention provides a filter, comprising an inlet vertical flow section, an annular water distribution tank, a filtration zone, a water collection zone, a clean water cylinder, and an outlet / backwash pipe, wherein:

[0005] The annular water distribution trough is provided with multiple water distribution holes. The annular water distribution trough is located above the filtration zone, and the water collection zone is located below the filtration zone. The water outlet and backwash pipe is connected to the water collection zone.

[0006] The outlet end of the vertical inlet section is connected to the annular water distribution trough, and the vertical inlet section is arranged circumferentially along the outer periphery of the annular water distribution trough. The outlet end of the vertical inlet section is located at the top of the vertical inlet section. When the vertical inlet section supplies water to the annular water distribution trough, the water supply is a water flow that is evenly distributed along the circumference of the annular water distribution trough and moves freely inward along the top outer periphery of the annular water distribution trough.

[0007] The filtration zone is equipped with a backwash drainage collection tank, which is located below the middle area of ​​the annular water distribution tank, and the backwash drainage collection tank is connected to a backwash drainage pipe.

[0008] The water tank is located in the filtration zone and the water collection zone, and is situated below the backwash drainage collection tank. The lower side wall of the water tank has multiple through holes equidistantly arranged along the circumference of the water tank. The water tank communicates with the water collection zone through the through holes, and the water outlet / backwash pipe is connected to the water tank.

[0009] According to one embodiment of the present invention, the ratio of the distance between the annular water distribution trough and the outlet port of the inlet vertical flow section to the height of the annular water distribution trough is 1.3-1.5:1.

[0010] According to one embodiment of the present invention, the ratio of the distance between the annular water distribution tank and the filtration zone to the height of the filtration zone is 1.3-1.5:1.

[0011] According to one embodiment of the present invention, the ratio of the radial dimension of the annular water distribution tank to the radial dimension of the filtration zone is 1:1.4-1:1.6.

[0012] According to one embodiment of the present invention, the horizontal distance between the annular water distribution tank and the backwash drainage collection tank is 0.3-0.5m.

[0013] According to one embodiment of the present invention, a plurality of water distribution holes are circumferentially distributed around the bottom center of the annular water distribution trough and distributed from the lower part to the upper part of the side wall near the center of the annular water distribution trough. The distance between any two adjacent water distribution holes is 5cm-10cm, and the diameter of each of the plurality of water distribution holes is 1cm-2cm.

[0014] According to one embodiment of the present invention, the spacing between any two adjacent through holes is 10cm-20cm, and the diameter of each of the plurality of through holes is 15-20cm.

[0015] According to one embodiment of the present invention, the system further includes a plurality of air distribution pipes, a backwash air inlet pipe, and a main air distribution pipe. The plurality of air distribution pipes are all disposed at the bottom of the filter zone, and the plurality of air distribution pipes are all connected to the main air distribution pipe. The backwash air inlet pipe is connected to the plurality of air distribution pipes through the main air distribution pipe, and the plurality of air distribution pipes are provided with a plurality of air distribution holes.

[0016] According to one embodiment of the present invention, the filtration zone includes, from bottom to top, a filter head plate, a quartz sand filter layer, an activated carbon filter layer, and a ceramic granule filter layer disposed above the water collection zone, wherein:

[0017] The quartz sand filter layer has a height of 0.5-0.8m and a particle size of 0.5-1.0mm; the activated carbon filter layer has a height of 0.3-0.5m and a particle size of 0.8-2mm; and the ceramsite filter layer has a height of 0.3-0.5m and a particle size of 3-5mm.

[0018] In a second aspect, the present invention provides a water purifier, including the above-mentioned filter, and further including a vortex reaction zone, a preliminary suspension clarification zone, an inclined tube sedimentation zone, a secondary suspension clarification zone and a sludge chamber, wherein;

[0019] The swirling reaction zone is inverted conical in shape; the preliminary suspension clarification zone is located above the swirling reaction zone; the secondary suspension clarification zone is located above the preliminary suspension clarification zone; the inclined tube sedimentation zone is located between the preliminary suspension clarification zone and the secondary suspension clarification zone; the filter is located above the secondary suspension clarification zone and is connected to the secondary suspension clarification zone through the inlet vertical flow section; a main inlet pipe is provided at the bottom of the swirling reaction zone.

[0020] The initial suspension clarification zone has a central cylinder at its center. The lower part of the central cylinder is in the shape of an inverted frustum. The central cylinder extends downward into the swirling reaction zone. A central cylinder sludge discharge pipe is provided on the side near the bottom. The central cylinder sludge discharge pipe passes through the conical surface of the swirling reaction zone and connects to the sludge chamber. The sludge chamber surrounds the lower part of the outer periphery of the swirling reaction zone.

[0021] According to one embodiment of the present invention, the water purifier is a cylindrical body that is smaller at the bottom and larger at the top, or has the same diameter at both the top and bottom, formed as a single piece.

[0022] According to one embodiment of the present invention, the top of the sludge chamber is provided with a sludge chamber supernatant discharge port, and the bottom is provided with a sludge discharge valve.

[0023] The present invention has the following beneficial effects:

[0024] 1. In this invention, through the coordinated use of the vortex reaction zone, inclined tube sedimentation zone, and filter in the water purifier, wastewater undergoes a first clarification treatment in the vortex reaction zone, followed by filtration in the inclined tube sedimentation zone for a second clarification treatment, and finally filtration in the filter for a third clarification treatment. This multi-stage process improves the clarity of the treated water, and the wastewater treatment at different stages is continuous, providing continuous wastewater purification capabilities and increasing the efficiency of wastewater purification. The filter is connected to the secondary suspension clarification zone via an inlet vertical flow section, facilitating the discharge of wastewater from the secondary suspension clarification zone into the filter for further purification, thus increasing the clarity of the treated water.

[0025] 2. In this invention, the combination of the filter's water distribution tank and filtration zone ensures that wastewater is evenly distributed within the filtration zone and permeates into it. This allows the wastewater to be filtered into clean water, improving its clarity. The inclusion of a clear water cylinder for unified discharge helps control the filtration rate, resulting in more uniform filtration and improved filtration efficiency. The combined outlet and backwash pipe allows for backwashing of the filtration zone, providing maintenance and extending its lifespan. Attached Figure Description

[0026] Figure 1 A schematic diagram of the filter structure of the present invention is shown;

[0027] Figure 2 A schematic diagram of the structure of the water purifier of the present invention is shown;

[0028] Attached reference numerals: 1-Water distribution tank; 2-Inlet vertical flow section; 3-Backwash drain pipe; 4-Filtration zone; 5-Water collection zone; 6-Clear water cylinder; 7-Water distribution hole; 8-Outlet and backwash pipe; 9-Backwash drain collection tank; 10-Main air distribution pipe; 11-Main inlet water pipe; 12-Sludge chamber; 13-Central cylinder; 14-Inclined tube sedimentation zone; 15-Sludge chamber supernatant discharge port; 16-Sludge discharge valve; 17-Swirl reaction zone; 18-Primary suspension clarification zone; 19-Central cylinder sludge discharge pipe; 20-Through hole; 21-Secondary suspension clarification zone; 22-Backwash air inlet pipe. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention; that is, the described embodiments are only a part of the embodiments of the invention, and not all of them.

[0030] In this invention, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing the invention and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0031] Furthermore, in addition to indicating direction or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in certain situations to indicate a dependency or connection. Those skilled in the art can understand the specific meaning of these terms in this invention based on the specific circumstances.

[0032] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; 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, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this invention based on the specific circumstances.

[0033] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, elements, or components (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, elements, or components. Unless otherwise stated, "a plurality of" means two or more.

[0034] Firstly, this embodiment provides a filter, such as... Figure 1 As shown, it includes an inlet vertical flow section 2, an annular water distribution tank 1, a filtration zone 4, a water collection zone 5, a clean water cylinder 6, and an outlet / backwash pipe 8, wherein:

[0035] The annular water distribution trough 1 is provided with a plurality of water distribution holes 7. The annular water distribution trough 1 is located above the filtration zone 4, and the water collection zone 5 is located below the filtration zone 4.

[0036] The outlet end of the water inlet vertical flow section 2 is connected to the water distribution trough 1, and the water inlet vertical flow section 2 is arranged circumferentially along the outer periphery of the annular water distribution trough 1. The outlet end of the water inlet vertical flow section 2 is located at the top of the water inlet vertical flow section 2. When the water inlet vertical flow section 2 delivers water to the annular water distribution trough 1, the water delivery is a water flow that is evenly distributed circumferentially along the annular water distribution trough 1 and moves freely inward along the top outer periphery of the annular water distribution trough 1.

[0037] The filtration zone 4 is provided with a backwash drainage collection tank 9, which is located below the middle area of ​​the annular water distribution tank 1, and the backwash drainage collection tank 9 is connected to a backwash drainage pipe 3.

[0038] The water tank 6 is disposed in the filtration zone 4 and the water collection zone 5, and the water tank 6 is located below the backwash drainage collection tank 9. The lower side wall of the water tank 6 has a plurality of through holes 20 that are equidistantly arranged along the circumference of the water tank 6. The water tank 6 is connected to the water collection zone 5 through the through holes 20, and the water outlet and backwash pipe 8 is connected to the water tank 6.

[0039] In this embodiment, a filter zone 4 and an annular water distribution trough 1 are sequentially arranged above the water collection zone 5, and multiple water distribution holes 7 are opened on the annular water distribution trough 1. The water inlet vertical flow section 2 is arranged around the annular water distribution trough 1, and the top of the water inlet vertical flow section 2 is connected to the annular water distribution trough 1. The backwash drainage collection trough 9 is arranged on the filter zone 4, and the backwash drainage collection trough 9 is located below the center of the annular water distribution trough 1. The backwash drainage pipe 3 is connected to the lower side wall of the backwash drainage collection trough 9, and the backwash drainage collection trough 9 is connected to the backwash drainage pipe 3. The clean water cylinder 6 is arranged in the middle of the filter zone 4 and the water collection zone 5, and the clean water cylinder 6 is located below the backwash drainage collection trough 9. Multiple through holes 20 are opened on the lower side wall of the clean water cylinder 6, and the multiple through holes 20 are arranged around the circumference of the clean water cylinder 6. The water outlet and backwash pipe 8 is connected to the clean water cylinder 6.

[0040] Wastewater flows into the annular distribution tank 1 through the inlet vertical flow section 2, and the water flow is evenly distributed around the circumference of the annular distribution tank 1. The water flows freely from the top outer circumference of the annular distribution tank 1 into the interior of the annular distribution tank 1. The wastewater falling on the annular distribution tank 1 is evenly sprinkled onto the filtration zone 4 through the distribution holes 7 on the distribution tank 1. The wastewater is filtered by the filtration zone 4 to obtain clean water. The water collection zone 5 collects the clean water obtained by the filtration zone 4. Further clean water enters the clean water cylinder 6 through the through hole 20. The clean water cylinder 6 accumulates clean water and then discharges from the outlet and backwash pipe 8. When cleaning the filtration zone 4, water enters the clean water cylinder 6 through the outlet and backwash pipe 8, and then enters the water collection zone 5 from the clean water cylinder 6. The clean water then rises through the water collection zone 5 and enters the filtration zone 4, thus rinsing the filtration zone 4 and preventing excessive impurities and caking in the filtration zone 4 after long-term use, which would affect the filtration efficiency and effect of the wastewater.

[0041] In this embodiment, the combination of the annular water distribution tank 1 and the filtration zone 4 ensures that wastewater is evenly distributed in the filtration zone 4 and permeates into it. Thus, the wastewater is filtered through the filtration zone 4 to obtain clean water, improving the clarity of the water. The inlet vertical flow section 2 is arranged circumferentially along the outer periphery of the annular water distribution tank 1, with its outlet located at the top. This arrangement ensures that when the inlet vertical flow section 2 delivers water to the annular water distribution tank 1, the water flow is evenly distributed circumferentially along the annular water distribution tank 1 and then falls freely into the annular water distribution tank 1 from its top outer periphery. This improves the water flow, ensuring that all water falls within the annular water distribution tank 1. Furthermore, the annular water distribution tank 1 can evenly distribute water onto the filtration zone 4. The outlet and backwash pipe 8 allows for backwashing of the filtration zone 4, maintaining its integrity and increasing its service life.

[0042] The annular water distribution trough 1 is designed as an annular structure to prevent wastewater from spilling into the backwash drainage collection trough 9 when the backwash drainage collection trough 9 is located on the filter zone 4 below the annular water distribution trough 1, thus preventing the wastewater from being unfiltered. The backwash drainage collection trough 9 is used to collect the backwash water generated during backwashing of the filter zone 4, preventing the backwash water from remaining on the filter zone 4 and failing to demonstrate the backwashing effect. The backwash water flows directly into the backwash drainage collection trough 9 and is then discharged from the backwash drain pipe 3 on the backwash drainage collection trough 9. In this embodiment, the arrangement of the backwash drainage collection trough 9 and the backwash drain pipe 3 facilitates the discharge of backwash water, the structure is easy to set up, and the operation is simple.

[0043] The inclusion of the clear water cylinder 6 allows for the unified collection and discharge of clear water, which helps control the filtration rate, resulting in more uniform filtration and improved filtration efficiency in the filtration zone 4. The clear water cylinder 6 also increases the area for collecting clear water. Combined with the through-hole 20 on the lower side wall of the clear water cylinder 6, clear water from the collection zone 5 enters the clear water cylinder 6 through the through-hole 20. The outlet / backwash pipe 8 is connected to the clear water cylinder 6, discharging the clear water from inside the clear water cylinder 6. When backwashing the filtration zone 4, both the clear water cylinder 6 and the collection zone 5 are simultaneously cleaned.

[0044] In some embodiments, the backwash drainage collection tank 9 and the clean water cylinder 6 are integrally formed. Specifically, a cylinder is provided from the bottom of the filter, passing sequentially through the water collection area 5 and the filtration area 4. The bottom of the cylinder is a closed structure, and the top of the cylinder is an open structure. A partition is provided near the top of the cylinder, dividing the cylinder into upper and lower areas. The upper area is the backwash drainage collection tank 9, and the lower area is the clean water cylinder 6. The integral formation of the backwash drainage collection tank 9 and the clean water cylinder 6 facilitates structural installation.

[0045] In some embodiments, a plurality of through holes 20 are arranged in a wave-like structure circumferentially on the side wall of the water tank 6 to increase the stability of the water tank 6 in the water collection area 5 and the filtration area 4.

[0046] In some embodiments, the outlet water and backwash pipe 8 is equipped with a valve. When backwashing the filter zone 4, the backwash water enters the filter zone 4 through the outlet water and backwash pipe 8 to backwash the filter zone 4 by switching the valve on the outlet water and backwash pipe 8.

[0047] In some embodiments, the water outlet and backwash pipe 8 is provided with two branch pipes, one branch pipe for clean water discharge and the other branch pipe for water inlet during backwashing. The arrangement of clean water discharge and backwash water inlet being introduced into different through holes facilitates operation.

[0048] In some embodiments, the water collection area 5 includes multiple supporting steel plates, which are staggered to support the filter area 4, providing space for collecting clean water and improving the stability of the filter structure.

[0049] In some embodiments, the backwashing cycle can be selected as automatic backwashing or automatic backwashing once every 4 hours or once every 8 hours, depending on the influent water quality. When the turbidity of the product water is ≥10 NTU, automatic backwashing can be performed. When the turbidity of the product water remains at 5 NTU, the automatic backwashing cycle can be set to once every 4 hours or once every 8 hours.

[0050] In some embodiments, both the filtration zone 4 and the water collection zone 5 are annular structures, and the clear water cylinder 6 is located at the center of the annular structure, making the structure compact.

[0051] According to one embodiment of the present invention, such as Figure 1 As shown, the ratio of the distance between the annular water distribution trough 1 and the outlet port of the inlet vertical flow section to the height of the annular water distribution trough is 1.3-1.5:1. Specifically, the distance between the outlet port of the inlet vertical flow section 2 and the annular water distribution trough 1 is 30cm-50cm.

[0052] In this embodiment, by setting the ratio of the distance between the outlet port of the water inlet vertical flow section 2 and the annular water distribution trough 1 to the height of the annular water distribution trough, it is ensured that the water on the water inlet vertical flow section 2 is evenly distributed in the annular water distribution trough 1, so that the annular water distribution trough 1 can evenly distribute the water on the filtration zone 4.

[0053] According to one embodiment of the present invention, the ratio of the distance between the annular water distribution tank 1 and the filtration zone 4 to the height of the filtration zone 4 is 1.3-1.5:1. Specifically, the distance between the annular water distribution tank 1 and the filtration zone 4 is 30-50cm.

[0054] In this embodiment, by setting the ratio of the distance between the annular water distribution tank 1 and the filter zone 4 to the height of the filter zone 4, when water from the annular water distribution tank 1 falls onto the filter zone 4, the filter zone 4 filters the wastewater that falls first, while the water that cannot be filtered in time remains in the distance between the filter zone 4 and the annular water distribution tank 1. The filter zone 4 filters the falling water in sequence, and the height of the filter zone 4 increases the effect of filtering wastewater.

[0055] According to one embodiment of the present invention, the radial dimension of the annular water distribution tank 1 is in the ratio of the radial dimension of the filtration zone 4 to 1:1.4-1:1.6, ensuring that the water on the annular water distribution tank 1 is evenly distributed on the filtration zone 4.

[0056] According to one embodiment of the present invention, such as Figure 1As shown, the horizontal distance between the annular water distribution tank 1 and the backwash drainage collection tank 9 is 0.3-0.5m. This ensures that the wastewater on the annular water distribution tank 1 always falls onto the filtration zone 4, preventing it from falling into the backwash drainage collection tank 9 and thus failing to be filtered. This reasonable distance increases the structural tightness and also prevents backwash water from rising and entering the water distribution tank 1.

[0057] According to one embodiment of the present invention, a plurality of water distribution holes 7 are circumferentially distributed around the bottom center of the annular water distribution trough 1 and distributed from the lower part to the upper part of the side wall near the center of the annular water distribution trough 1. The distance between any two adjacent water distribution holes 7 is 5cm-10cm, and the diameter of each plurality of water distribution holes 7 is 1cm-2cm.

[0058] In this embodiment, by creating water distribution holes 7 at the bottom and on the side wall near the center of the annular water distribution trough 1, the uniformity and flow rate of water flowing into the filtration zone 4 from the annular water distribution trough 1 are improved. The diameter of the water distribution holes 7 is also adjusted to improve the uniformity of wastewater being distributed from the annular water distribution trough 1 into the filtration zone 4.

[0059] According to one embodiment of the present invention, the spacing between any two adjacent through holes 20 is 10cm-20cm, and the diameter of each of the plurality of through holes 20 is 15-20cm.

[0060] In this embodiment, the rate at which water flows from the water collection area 5 into the clear water cylinder 6 is increased by setting the through hole 20.

[0061] In some embodiments, the through holes 20 are provided with 8 to 18 holes to increase the speed at which clean water from the water collection area 5 enters the clean water cylinder 6, and also to facilitate backwashing by allowing the clean water to flow quickly from the clean water cylinder 6 to the clean water area.

[0062] According to one embodiment of the present invention, such as Figure 1 As shown, it also includes multiple air distribution pipes, a backwash air inlet pipe 22, and a main air distribution pipe 10. The multiple air distribution pipes are all located at the bottom of the filter zone 4, and the multiple air distribution pipes are all connected to the main air distribution pipe 10. The backwash air inlet pipe 22 is connected to the multiple air distribution pipes through the main air distribution pipe 10. The multiple air distribution pipes are each distributed with multiple air distribution holes. The main air distribution pipe 10 is arranged around the circumference of the clear water cylinder 6, and the multiple air distribution pipes are arranged around the outer circumference of the main air distribution pipe 10.

[0063] In this embodiment, a distribution pipe, a backwash inlet pipe 22, and a main distribution pipe 10 are configured. When backwashing the filter zone 4, gas is first introduced into the backwash inlet pipe 22, and then the gas is sent to each distribution pipe through the main distribution pipe 10. Each distribution pipe delivers gas to the filter zone 4, thereby aerating the filter zone 4. The air washing disperses the suspended matter and colloids attached to the filter zone 4, followed by water washing, increasing the cleanliness of the filter zone 4 and further increasing the efficiency of the water washing process. The arrangement of multiple distribution pipes increases the air washing area of ​​the filter zone 4 and improves the working efficiency. In some ways, water vapor and air washing are carried out simultaneously, and the generated bubbles can also wash away impurities attached to the filter zone 4. The evenly spaced air distribution holes facilitate backwashing aeration.

[0064] According to one embodiment of the present invention, such as Figure 1 As shown, the filtration zone 4 includes, from bottom to top, a filter head plate, a quartz sand filter layer, an activated carbon filter layer, and a ceramic granule filter layer arranged above the water collection zone 5, wherein:

[0065] The quartz sand filter layer has a height of 0.5-0.8m and a particle size of 0.5-1.0mm; the activated carbon filter layer has a height of 0.3-0.5m and a particle size of 0.8-2mm; and the ceramsite filter layer has a height of 0.3-0.5m and a particle size of 3-5mm.

[0066] By setting different filter media layers, filter media layer heights, and filter media particle sizes, the filtration effect of filtration zone 4 is improved. Filtration and adsorption work together to treat wastewater, further enhancing the filtration effect of filtration zone 4 and thus increasing the clarity of the filtered water.

[0067] Secondly, the present invention provides a water purifier, such as... Figure 2 As shown, the filter includes the aforementioned filter, as well as a cyclone reaction zone 17, a preliminary suspension clarification zone, an inclined tube sedimentation zone 14, a secondary suspension clarification zone 21, and a sludge chamber 12, wherein:

[0068] The swirling reaction zone 17 is inverted conical; the preliminary suspension clarification zone is located above the swirling reaction zone 17; the secondary suspension clarification zone 21 is located above the preliminary suspension clarification zone; the inclined tube sedimentation zone 14 is located between the preliminary suspension clarification zone and the secondary suspension clarification zone 21; the filter is located above the secondary suspension clarification zone 21, and the filter is connected to the secondary suspension clarification zone 21 through the inlet vertical flow section 2; a main inlet pipe 11 is provided at the bottom of the swirling reaction zone 17.

[0069] The initial suspension clarification zone has a central cylinder 13 at its center. The lower part of the central cylinder 13 is in the shape of an inverted frustum. The central cylinder 13 extends downward into the swirling reaction zone 17. A central cylinder sludge discharge pipe 19 is provided on the side near the bottom. The central cylinder sludge discharge pipe 19 passes through the conical surface of the swirling reaction zone 17 and connects to the sludge chamber 12. The sludge chamber 12 surrounds the lower part of the outer periphery of the swirling reaction zone 17.

[0070] In this embodiment, the preliminary suspension clarification zone is placed on the inverted conical swirling reaction zone 17, the inclined tube sedimentation zone 14 is placed above the preliminary suspension clarification zone, the secondary suspension clarification zone 21 is placed above the inclined tube sedimentation zone 14, and the filter is placed above the preliminary suspension clarification zone. The secondary suspension clarification zone 21 is introduced into the inlet vertical flow section 2 outside the filter, so that the filter is connected to the secondary suspension clarification zone 21 through the inlet vertical flow section 2. A central cylinder 13 is set in the center of the preliminary suspension clarification zone. The top of the central cylinder 13 is an open structure, the bottom of the central cylinder 13 is a closed structure, and the lower part of the central cylinder 13 is inverted frustum shape. The central cylinder 13 extends downward into the swirling reaction zone 17, and a central cylinder sludge discharge pipe 19 is provided on the side of the central cylinder 13 near the bottom. The central cylinder sludge discharge pipe 19 passes through the conical surface of the swirling reaction zone 17 and is connected to the sludge chamber 12. The sludge chamber 12 surrounds the lower part of the outer periphery of the swirling reaction chamber.

[0071] Wastewater containing chemicals first flows through the vortex reaction zone 17 and then into the primary suspension clarification zone 18. Because the vortex reaction zone 17 has an inverted conical structure, the wastewater rises in a swirling motion, creating agitation. During this swirling process, the wastewater mixes with the chemicals, causing flocculation. The separated impurities enter the central cylinder 13, while the wastewater continues to rise to the primary suspension clarification zone 18. The wastewater then continues to rise through the inclined tube sedimentation zone 14, where it is filtered. Some impurities adhere to the inclined tube sedimentation zone 14. The filtered wastewater then enters the secondary suspension clarification zone 21 and flows through the inlet vertical flow section 2 into the annular water distribution tank 1 of the filter. The filter further filtrations the wastewater, improving the purification effect of the clean water. Impurities falling into the central cylinder 13 are discharged through the central cylinder sludge discharge pipe 19 and fall into the sludge chamber 12.

[0072] In this embodiment, the cyclone reaction zone 17, the inclined tube sedimentation zone 14, and the filter work together. Wastewater undergoes a first clarification process in the cyclone reaction zone 17, followed by filtration in the inclined tube sedimentation zone 14 for a second clarification process, and finally filtration in the filter for a third clarification process. This multi-stage process improves the clarity of the treated water, and the wastewater treatment at different stages is continuous, providing continuous wastewater purification capabilities and increasing the efficiency of wastewater purification. The filter is connected to the secondary suspension clarification zone 21 via the inlet vertical flow section 2, facilitating the discharge of wastewater from the secondary suspension clarification zone 21 into the filter for further purification, thus increasing the clarity of the treated water. The main inlet pipe 11 facilitates the entry of wastewater into the cyclone reaction zone 17, thereby purifying the incoming wastewater.

[0073] The sludge chamber 12 is used for impurity collection to prevent impurities generated by flocculation from entering the filter with the wastewater.

[0074] This embodiment features a high degree of structural integration and compactness, resulting in a smaller footprint. Its structure is easy to install, facilitates water purification, and provides excellent purification performance, making it suitable for modular production and widespread adoption.

[0075] In some embodiments, the filter is positioned above the secondary suspension clarification zone 21, increasing the integration of the structure and reducing the footprint of the purifier.

[0076] Alternatively, the clarifier can be adjacent to the secondary suspension clarification zone 21, increasing the number of installation methods for the structure to adapt to different application scenarios, thus having the characteristic of a wide range of applications.

[0077] In some embodiments, the inclined tube sedimentation zone 14 includes a plurality of inclined tubes arranged and connected, the outermost inclined tube is connected to the sidewall of the primary suspension clarification zone 18, the upper ends of the plurality of inclined tubes are connected to the secondary suspension clarification zone 21, and the upper ends of the plurality of inclined tubes are connected to the primary suspension clarification zone 18, so that the primary suspension clarification zone 18 is connected to the secondary suspension clarification zone 21 through the plurality of inclined tubes.

[0078] According to one embodiment of the present invention, such as Figure 2 As shown, the water purifier is a cylindrical body that is smaller at the bottom and larger at the top, or has the same diameter at both the top and bottom, formed as one piece.

[0079] In this embodiment, when the water purifier is a one-piece cylindrical body with a smaller bottom and a larger top, the outer peripheral sidewall of the water inlet vertical flow section 2 is protruding and mounted on the water purifier. When the water purifier is a one-piece cylindrical body with the same diameter at both the top and bottom, the outer peripheral sidewall of the water inlet vertical flow section 2 and the side of the water purifier are on the same vertical plane. The water purifier's design adapts to different needs.

[0080] According to one embodiment of the present invention, such as Figure 2As shown, the top of the sludge chamber 12 is provided with a sludge chamber 12 supernatant discharge port, and the bottom is provided with a sludge discharge valve 16.

[0081] In this embodiment, since the top of the central cylinder 13 is open, in addition to impurities, some wastewater also enters the central cylinder 13. Therefore, the wastewater, along with the impurities, flows into the sludge chamber 12 through the central cylinder sludge discharge pipe 19 on the central cylinder 13. The impurities settle to the bottom of the sludge chamber 12, separating from the wastewater. The wastewater rises and is discharged from the supernatant discharge port, while the impurities are discharged through the sludge discharge valve 16. Because the wastewater has undergone one flocculation reaction and separated from the impurities in the sludge chamber 12, the wastewater is initially purified and can be used in applications with lower requirements for water clarity. Alternatively, it can be purified again to improve the clarity to meet the requirements.

[0082] The foregoing description of embodiments of the invention has been provided for purposes of illustration and description. The foregoing description is not exhaustive and is not intended to limit the invention to the exact forms disclosed; various modifications and variations may be made in accordance with the foregoing teachings, or may be derived from the practice of the invention. These embodiments were chosen and described to illustrate the principles of the invention and its practical application, enabling those skilled in the art to utilize the invention in various embodiments and with various modifications to suit the particular purpose of the concept.

Claims

1. A water purifier, characterized in that, It includes a filter, a cyclone reaction zone, a preliminary suspension and clarification zone, an inclined tube sedimentation zone, a secondary suspension and clarification zone, and a sludge chamber, wherein: The swirling reaction zone is inverted conical in shape; the preliminary suspension clarification zone is located above the swirling reaction zone; the secondary suspension clarification zone is located above the preliminary suspension clarification zone; the inclined tube sedimentation zone is located between the preliminary suspension clarification zone and the secondary suspension clarification zone; the filter is located above the secondary suspension clarification zone and is connected to the secondary suspension clarification zone through a vertical inlet section; a main inlet pipe is provided at the bottom of the swirling reaction zone. The filter includes an inlet vertical flow section, an annular water distribution tank, a filtration zone, a water collection zone, a clean water cylinder, and an outlet / backwash pipe, wherein: The annular water distribution trough is provided with multiple water distribution holes. The annular water distribution trough is located above the filtration zone, the water collection zone is located below the filtration zone, and the water outlet and backwash pipe is connected to the water collection zone. The outlet end of the vertical inlet section is connected to the annular water distribution trough, and the vertical inlet section is arranged circumferentially along the outer periphery of the annular water distribution trough. The outlet end of the vertical inlet section is located at the top of the vertical inlet section. When the vertical inlet section supplies water to the annular water distribution trough, the water supply is a water flow that is evenly distributed along the circumference of the annular water distribution trough and moves freely inward along the top outer periphery of the annular water distribution trough. The filtration zone is equipped with a backwash drainage collection tank, which is located below the middle area of ​​the annular water distribution tank, and the backwash drainage collection tank is connected to a backwash drainage pipe. The water tank is disposed in the filtration zone and the water collection zone, and the water tank is located below the backwash drainage collection tank. The lower side wall of the water tank has multiple through holes arranged along the circumference of the water tank. The water tank is connected to the water collection zone through the through holes. The water outlet and backwash pipe is connected to the water tank. The ratio of the distance between the annular water distribution trough and the outlet port of the vertical inlet section to the height of the annular water distribution trough is 1.3-1.5:1; The ratio of the distance between the annular water distribution tank and the filtration zone to the height of the filtration zone is 1.3-1.5:1; The horizontal distance between the annular water distribution trough and the backwash drainage collection trough is 0.3-0.5m; The filtration zone includes, from bottom to top, a filter head plate, a quartz sand filter layer, an activated carbon filter layer, and a ceramic granule filter layer arranged above the water collection zone.

2. The water purifier as described in claim 1, characterized in that, The ratio of the radial dimension of the annular water distribution trough to the radial dimension of the filtration zone is 1:1.4-1:1.

6.

3. The water purifier as described in claim 1, characterized in that, The plurality of water distribution holes are circumferentially distributed around the bottom center of the annular water distribution trough and distributed from the lower part to the upper part of the side wall near the center of the annular water distribution trough. The distance between any two adjacent water distribution holes is 5cm-10cm, and the diameter of each of the plurality of water distribution holes is 1cm-2cm.

4. The water purifier as described in claim 1, characterized in that, The spacing between any two adjacent through holes is 10cm-20cm, and the diameter of each of the through holes is 15-20cm.

5. The water purifier as described in claim 1, characterized in that, It also includes multiple air distribution pipes, a backwash air inlet pipe and a main air distribution pipe. The multiple air distribution pipes are all located at the bottom of the filter area. The multiple air distribution pipes are all connected to the main air distribution pipe. The backwash air inlet pipe is connected to the multiple air distribution pipes through the main air distribution pipe. The multiple air distribution pipes are each distributed with multiple air distribution holes.

6. The water purifier as described in claim 1, characterized in that, The quartz sand filter layer has a height of 0.5-0.8m and a particle size of 0.5-1.0mm; the activated carbon filter layer has a height of 0.3-0.5m and a particle size of 0.8-2mm; and the ceramsite filter layer has a height of 0.3-0.5m and a particle size of 3-5mm.

7. The water purifier as described in claim 1, characterized in that, The initial suspension clarification zone has a central cylinder at its center. The lower part of the central cylinder is in the shape of an inverted frustum. The central cylinder extends downward into the swirling reaction zone. A central cylinder sludge discharge pipe is provided on the side near the bottom. The central cylinder sludge discharge pipe passes through the conical surface of the swirling reaction zone and connects to the sludge chamber. The sludge chamber surrounds the lower part of the outer periphery of the swirling reaction zone.

8. The water purifier as described in claim 1, characterized in that, The water purifier is a cylindrical body that is smaller at the bottom and larger at the top, or has the same diameter at both the top and bottom, formed as one piece.

9. The water purifier as described in claim 1, characterized in that, The sludge chamber is equipped with a sludge chamber supernatant discharge port at the top and a sludge discharge valve at the bottom.

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