TWM623408U - Filtering device - Google Patents

Abstract

This case is about a filter device. The filtering device includes a first columnar groove body, a second columnar groove body, a communication pipe structure, a filter screen structure and a first pipe body. An annular flow channel is arranged in the first columnar groove body. The first column-shaped groove body has a cavity, and the bottom of the second column-shaped groove body is connected to the top of the first column-shaped groove body. The communication tube structure is arranged in the first columnar groove body and the annular flow channel surrounds the communication tube structure. The first opening of the communication tube structure is connected to the annular flow channel and the second opening is connected to the bottom of the second columnar groove body. The filter screen structure is arranged in the second column-shaped groove body, and the annular filter screen of the filter screen structure is connected to the bottom plate and the chambers are divided into an inner chamber and an outer ring chamber. The water outlet of the first pipe body is connected to the side wall of the first columnar tank body, and the water outlet of the first pipe body faces the tangential direction of the annular flow channel.

Description

filter

This case relates to a filter device, especially a water filter device.

Fluid purification has always been the focus of attention in all walks of life. Taking aquaculture and fishery as an example, the common filtering equipment is a sand filter or a drum filter.

The sand filter bucket allows the fluid to flow through a single layer of sand and gravel layers or multiple layers of sand and gravel layers of varying thickness, and uses the gaps of the sand and gravel layers to capture the impurity particles in the fluid for deep filtration. The advantage is that the structure is simple and the cost is cheap, but the disadvantage is that a high-pressure pump must be used for filtration, which causes energy consumption problems. In addition, the sand body maintenance process is heavy and it is difficult to clean it by backwashing.

The particulate filter makes the fluid flow through the filter screen, and uses the filter screen to intercept the impurity particles in the fluid for surface filtration. However, the filter screen of the particulate filter adopts an open design (the filter screen is not completely immersed in the fluid to be filtered), which makes it difficult to adjust the water level and the filter screen utilization rate is only 50%. In addition, the particulate filter also consumes energy to drive the motor to rotate the filter screen, and its components are complex, difficult to maintain and expensive.

In view of this, the creator proposes a filtering device. The filtering device includes a first columnar groove body, a second columnar groove body, a communication pipe structure, a filter screen structure and a first pipe body. The first column-shaped groove body includes a first side wall, and the first column-shaped groove body has an annular flow channel. The second column-shaped groove body includes a second side wall, the first column-shaped groove body has a cavity, and the bottom of the second column-shaped groove body is connected to the top of the first column-shaped groove body. The communication tube structure is disposed in the first columnar groove body and the annular flow channel surrounds the communication tube structure. The communication tube structure has a first opening and a second opening, the first opening is connected to the annular flow channel, and the first opening is connected to the annular flow channel. The two openings are connected to the bottom of the second columnar groove body. The filter screen structure is disposed in the second columnar groove body, the filter screen structure includes a bottom plate and an annular filter screen, the bottom plate faces the second opening of the communication pipe structure and is spaced apart from the second opening, the annular filter screen It is connected to the bottom plate and distinguishes the chamber into an inner chamber and an outer ring chamber. The first pipe body includes a water inlet and a water outlet, the water outlet of the first pipe body is connected to the first side wall of the first columnar tank body, and the water outlet of the first pipe body faces the tangent of the annular flow channel direction, so that the fluid flows along the annular flow channel after entering the first cylindrical groove body from the first pipe body.

Some examples are provided below to illustrate the disclosure of the present invention in detail. Those with ordinary knowledge in the field to which the present invention pertains can easily understand the advantages and technical effects of the present invention after reading the disclosure of this specification, and can also be further implemented or applied in in other different specific embodiments. Therefore, based on the following embodiments to implement the disclosure of the present invention, simple modifications and/or adjustments can be made without departing from the scope of its creative spirit and application. Also, any element or method disclosed in any particular embodiment of this specification may be combined with any other element or method. It should be understood that the present invention is not limited to the devices or methods disclosed in the specific embodiments of the present specification, and the claims of the present invention should be based on the contents described in the patent application scope of the present invention.

The proportions, structures, dimensions and other features shown in the drawings of the present invention are only used to illustrate the described embodiments of the present invention, so as to facilitate reading and understanding of the present invention by those skilled in the art to which the present invention belongs, and are not intended to limit the present invention. New scope of rights. In addition, any alteration, modification or adjustment of the aforementioned features shall fall within the scope of the claims of the present invention without affecting the design purpose and effect of the present invention.

As described in this specification, when the terms "comprising", "including" or "having" are used, unless otherwise specified, it may additionally include other elements, components, structures, regions, components, devices, systems, steps, connections, etc., other specifications should not be excluded.

As described in this manual, the terms "up", "top", "down", "bottom", "left", "right", "inside", "outside", "near" and "far" should be used. The reference is only to illustrate the technical content or relative relationship of the embodiments of the present invention, and is not intended to limit the scope of application of the present invention unless otherwise specified. Therefore, any adjustment, exchange or change of relative positions and relationships, as long as it does not substantially change the technical content of the present invention, shall fall within the scope of the claims of the present invention.

As described in this specification, when the terms "first" and "second" are used in the order, they are only cited for the convenience of describing or distinguishing specifications such as elements, components, structures, regions, components, devices, systems, etc., and are not intended to be used. It does not limit the scope of application of the present invention, nor does it limit the spatial sequence relationship between such specifications. In addition, unless otherwise stated, the singular term "a" in this specification is also applicable to the plural usage situation, and the terms "or" and "and/or" can also be used interchangeably.

The filter device 10 of the present invention is suitable for fluid filtration, and the fluid can be a liquid fluid such as water or oil, so as to filter out the impurity particles existing in the fluid. In some embodiments, the filter device 10 can be applied to a water tank or drainage system in aquaculture, such as a water circulation pipeline installed in the water tank, but is not limited thereto, such as aquarium ornamental tanks and sewage treatment plants.

FIG. 1 is a schematic perspective view of the filter device disclosed in an embodiment of the present application; FIG. 2 is an exploded schematic view of the filter device disclosed in an embodiment of the present application. Please refer to FIGS. 1 and 2 together. According to some embodiments, the filtering device 10 includes a first columnar tank body 101 , a second columnar tank body 102 , a communication pipe structure 104 , a filter screen structure 105 , a first pipe body 106 and a second pipe body 107 .

The first columnar groove body 101 includes a first side wall 1011 surrounding the first side wall 1011 to form a closed cavity. The appearance of the first column-shaped groove body 101 can be a cylindrical groove body, so as to facilitate the revolving of the fluid in the closed chamber to form an annular flow channel C. As shown in FIG. However, it is not limited to this, for example, the exterior adopts a polygonal cylinder or a columnar groove of other shapes, and the closed cavity inside forms a structure of a cylinder, a polygonal cylinder or other shapes. A flange can be formed on one side of the column-shaped groove body to facilitate assembly. For example, in the embodiment of FIG. 2 , the top 1012 of the first column-shaped groove body 101 extends outward to form a flange structure, so as to facilitate disposing the second column-shaped groove body 102 on the first column-shaped groove body 101 The top 1012. In another embodiment, the bottom portion 1023 of the second column-shaped groove body 102 extends outward to form a flange structure, so as to facilitate disposing the first column-shaped groove body 101 on the bottom portion 1023 of the second column-shaped groove body 102 , or , the top 1012 of the first column-shaped groove body 101 and the bottom 1023 of the second column-shaped groove body 102 both extend outward to form a flange structure. The annular flow channel C may refer to the space formed in the closed chamber of the first cylindrical groove body 101 to allow fluid to flow around, such as a concentric or helical closed chamber, or it may refer to the fluid in the closed chamber. Flow direction. Here, the annular shape is not limited to the circular shape. In one embodiment, the bottom 1013 of the first columnar groove body 101 forms an indented inclined surface, and the bottom 1013 of the first columnar grooved body 101 includes a drain hole 10131 (refer to FIG. 4 ) disposed at the center of the indented inclined surface. As shown in FIG. 1 , the bottom 1013 of the first columnar tank body 101 forms a funnel-shaped structure, allowing part of the fluid to flow downward from the sewage hole 10131 , which will be described in detail later. The first pipe body 106 is connected to the first side wall 1011 of the first columnar groove body 101 and forms a water outlet 1062 on the wall surface of the first side wall 1011 , or extends through the wall surface and extends into the closed chamber to form the water outlet 1062 . The water outlet 1062 of the first pipe body 106 faces the tangential direction of the annular flow channel C. Here, the direction may refer to the flow direction of the fluid after flowing out of the water outlet 1062 . In some embodiments, the flow direction is the normal direction of the plane where the water outlet 1062 is located. In some embodiments, the flow direction is the axial direction of the first tube body 106 coupled to the first side wall 1011 of the first columnar groove body 101 . In this way, after the fluid enters the first cylindrical groove body 101 from the first pipe body 106 , it flows along the annular flow channel C around a center.

The second columnar groove body 102 includes a second side wall 1021 surrounding the second side wall 1021 to form a closed cavity 1024 . The appearance of the second cylindrical groove body 102 can be a cylindrical groove body, so as to facilitate the fluid to revolve in the closed chamber 1024 . Alternatively, the exterior adopts a polygonal cylinder or a columnar groove of other shapes, and the closed chamber 1024 in the interior forms a structure of a cylinder, a polygonal cylinder or other shapes. In the embodiment of FIG. 1 , the diameter of the second columnar groove body 102 is greater than that of the first columnar groove body 101 , but it is not limited thereto, and the diameter of the former can also be smaller than or equal to that of the latter. The diameter can also refer to the maximum width of the section. The bottom 1023 of the second column-shaped groove body 102 is connected to the top 1012 of the first column-shaped groove body 101. As mentioned above, the front and the latter can be joined through the flange structure, or can also be glued, snapped, or buckled. It can be connected by means of closing, locking, welding, welding, etc., or it is made by integral molding. In one embodiment, the top 1022 of the second side wall 1021 is provided with an exhaust valve 112 to communicate with the closed chamber 1024 inside the second columnar tank 102 and the atmosphere outside the second columnar tank 102 .

The communication pipe structure 104 communicates with the closed chamber inside the first columnar tank 101 and the closed chamber 1024 in the second columnar tank 102 , allowing fluid to flow from the first columnar tank 101 to the second columnar tank 102 . The communication pipe structure 104 is disposed in the first columnar groove body 101 . In one embodiment, please refer to FIG. 1 , the communication pipe structure 104 may be disposed in the center of the annular flow channel C. As shown in FIG. In this way, the fluid rotates around the communication pipe structure 104 in the first columnar groove body 101 . In addition, the pipe wall of the communication pipe structure 104 is perpendicular to the direction of the water outlet 1062 of the first pipe body 106 (or, the first opening 1041 of the communication pipe structure 104 does not directly face the water outlet 1062 of the first pipe body 106 ), The fluid flowing out of the first pipe body 106 does not directly rush into the communication pipe structure 104 and enters the second columnar groove body 102 , but flows in the first columnar groove body 101 before. In one embodiment, the communication pipe structure 104 extends downward from the top 1012 of the first columnar groove body 101 to exceed the length of the lower edge of the aperture of the water outlet 1062 of the first pipe body 106 . In one embodiment, the top of the communication pipe structure 104 (the position of the second opening 1042 ) or the pipe wall of the middle section of the pipe body can extend outward to form a flange structure, so that the communication pipe structure 104 can be connected to the first columnar groove body. 1012 on top of 101. For example, referring to FIG. 2 , a flange structure is formed on the top of the communication pipe structure 104 , and another flange structure is formed on the top 1012 of the first columnar groove body 101 , on which the other flange structure is formed. The surface is concave to form a concave portion sufficient to accommodate the flange structure of the communicating pipe structure 104, so as to facilitate the engagement of the two. However, the connection method of the two is not limited to this, and it is sufficient that all or part of the communication pipe structure 104 is fixed in the first columnar groove body 101 . The fixing is not limited to detachable or non-detachable connection. The second opening 1042 of the communication tube structure 104 is connected to the bottom 1023 of the second column-shaped groove body 102 , and the second opening 1042 may be an opening directly disposed on the bottom surface of the second column-shaped groove body 102 , or the communication tube structure 104 An opening formed through the bottom surface of the second column-shaped groove body 102 and extending into the closed cavity 1024 of the second column-shaped groove body 102 .

The filter screen structure 105 includes a bottom plate 1051 and an annular filter screen 1052 . In one embodiment, the filter screen structure 105 forms a columnar structure. The columnar structure may be, but is not limited to, a column. For example, as shown in FIG. 2 , the bottom plate 1051 of the filter screen structure 105 is a disc, the annular filter screen 1052 forms a cylinder, and the height of the cylinder is smaller than the height of the second column-shaped groove body 102 so as to be accommodated in the first column. inside the two columnar groove bodies 102 . The bottom plate 1051 and the annular filter screen 1052 of the filter screen structure 105 may both be composed of filter screens, or the bottom plate 1051 may be composed of a water-impermeable baffle plate. The pore size of the filter screen can be designed according to the fluid to be filtered and the size of impurities usually contained therein. For example, in order to filter out the sediment in the water, a filter screen of 150-450 mesh specifications is used according to the size of the sediment. In one embodiment, the annular filter 1052 is made of metal, such as steel, aluminum, or a material with better rigidity such as carbon, or the aforementioned material is used as a skeleton to support the flexible filter to avoid fluid impact and cause the filter. Structure 105 deforms. The filter screen structure 105 further forms an inner chamber 10241 with a smaller range in the inner chamber 1024 of the second columnar groove body 102 , and the part outside the filter screen structure 105 is an outer ring chamber 10242 . In this way, when the fluid to be treated flows from the outer ring chamber 10242 into the inner chamber 10241 , it is filtered by the filter screen structure 105 , and the impurity particles in the fluid are retained on the outer wall surface of the filter screen structure 105 . In one embodiment, the top of the filter screen structure 105 is open (ie, has no top surface) and is fixed on the top surface of the second columnar tank body 102 , so that the filter screen structure 105 is suspended from the second columnar tank body 102 Inside, and the bottom plate 1051 and the second opening 1042 of the communication tube structure 104 are kept at a distance, so as to facilitate the flow of fluid toward the second side wall 1021 of the second columnar groove body 102 . In another embodiment, the bottom plate 1051 of the filter structure 105 can also be erected on a bracket disposed on the bottom 1023 of the second columnar groove body 102 , and the bottom plate 1051 and the second opening 1042 of the communicating tube structure 104 are kept at a distance.

The first pipe body 106 is suitable for introducing sewage into the filtering device 10 , and the second pipe body 107 is suitable for leading purified water out of the filtering device 10 . As mentioned above, the first pipe body 106 is connected to the first side wall 1011 of the first columnar groove body 101 . The second pipe body 107 is connected to the inner chamber 10241 of the second columnar tank body 102 to lead out the purified water inside the screen structure 105 . In one embodiment, the second pipe body 107 is connected to the top surface of the inner chamber 10241 of the second cylindrical tank body 102 , and a water inlet 1071 is formed on the top surface of the inner chamber 10241 . Alternatively, the second pipe body 107 passes through the top surface of the inner chamber 10241 and extends into the closed chamber 1024 of the second cylindrical groove body 102 to form a water inlet 1071 . The connection can be connected by gluing, snapping, snap-fitting, locking, welding, welding, etc., or it can be formed integrally. In one embodiment, the water inlet 1061 of the first pipe body 106 and/or the water outlet 1072 of the second pipe body 107 are respectively coupled to a water pump 111, so that the speed of the fluid entering and leaving the filter device 10 can be adjusted, or the fluid is provided The kinetic energy required to enter the next water purification stage of the filter device 10. In one embodiment, when the water pump 111 is in a power-off state, the fluid channel inside the water pump 111 is in a channel state, so that the fluid can flow into or out of the filter device 10 by hydraulic pressure; when the water pump 111 is in an energized state, the flow rate of the fluid can be further controlled. adjust. In one embodiment, as shown in FIG. 2 , the water pump 111 can be disposed on the top surface of the second cylindrical tank body 102 to draw the purified water in the inner chamber 10241 .

In one embodiment, the filter device 10 includes a first columnar tank body 101, a second columnar tank body 102, a third columnar tank body 103, a communication pipe structure 104, a filter screen structure 105, a first pipe body 106, a third columnar tank body 103, a The second tube body 107 and the third tube body 108 . The third columnar groove body 103 includes a third side wall 1031 surrounding the third side wall 1031 to form a closed chamber. The external appearance of the third columnar groove body 103 may be a cylindrical groove body, or, the external appearance adopts a polygonal cylindrical body or a cylindrical groove body of other shapes, and the closed cavity inside is formed of a cylindrical, polygonal cylindrical body or other shapes. structure. In the embodiment of FIG. 1 , the diameter of the third columnar groove body 103 is equal to that of the first columnar groove body 101 , but it is not limited thereto, and the diameter of the former can be smaller or greater than that of the latter. The diameter can also refer to the maximum width of the section. The top portion 1032 of the third column-shaped groove body 103 is connected to the bottom portion 1023 of the second column-shaped groove body 102 . The third pipe body 108 is adapted to lead the sewage out of the filter device 10 . The third pipe body 108 is connected to the third side wall 1031 of the third columnar tank body 103, and forms a water inlet 1081 on the wall surface of the third side wall 1031, or extends through the wall surface and extends into the closed chamber to form a water inlet 1081. The connection can be joined through the flange structure, and can also be connected by gluing, snapping, snapping, locking, welding, welding, etc., or it can be made by integral molding. In one embodiment, the water inlet 1061 of the first pipe body 106 and/or the water outlet 1082 of the third pipe body 108 are respectively connected to a water valve 113 . The water valve 113 can be selected from a solenoid valve, a ball valve, a globe valve, a butterfly valve, a check valve, a gate valve, and a diaphragm valve (diaphragm valve) and blowdown valve (blowdown valve). Thus, the filter device 10 can regulate the input of water to be treated and/or the output of sewage. For example, when the user or the automatic control system is cleaning/maintaining the filter device 10, the water valve 113 of the water inlet 1061 of the first pipe body 106 is closed to suspend the filter process; When the water concentration or treatment station is in the cleaning/maintenance process, the user or the automatic control system closes the water valve 113 of the water outlet 1082 of the third pipe body 108 to suspend the output of sewage.

In one embodiment, the filter device 10 includes a first columnar tank body 101 , a second columnar tank body 102 , a communicating pipe structure 104 , a cone 109 , a filter screen structure 105 , a first pipe body 106 and a second pipe body 107. The cone 109 may be a cone or a pyramid. The tapered member 109 has a narrow end 1092 and a wide end 1093. As shown in FIG. 2, the narrow end 1092 of the tapered member 109 may include an upwardly extending neck. The narrow end 1092 of the conical member 109 extends from the first opening 1041 of the communication tube structure 104 into the tube body of the communication tube structure 104 . In one embodiment, the neck portion of the narrow end 1092 may extend upward to the second opening 1042 of the communication tube structure 104 , or to the bottom plate 1051 of the filter screen structure 105 in the second columnar groove body 102 . In one embodiment, the narrow end 1092 may include a bracket to fix the position of the cone 109 . For example, referring to FIG. 2 , the narrow end 1092 of the tapered member 109 includes a bracket extending outward in four directions, the bracket is used to abut the inner wall surface of the communication pipe structure 104 , and the length of the bracket is consistent with the cone The shaped piece 109 is fixed to the central axis of the communicating tube structure 104 . Therefore, when the fluid flows in the annular flow channel C, it surrounds the communication pipe structure 104 and the conical member 109 . FIG. 4 is a schematic cross-sectional view of the filtering device 10 disclosed in an embodiment of the present application, please refer to FIG. 4 . The conical surface 1091 of the conical member 109 faces the first opening 1041 of the communicating tube structure 104 and the bottom surface of the conical member 109 faces the drain hole 10131 in the bottom 1013 of the first columnar groove 101 . From the height of the second opening 1042 of the communicating tube structure 104 or the bottom plate 1051 of the filter screen structure 105 , the minimum length of the conical piece 109 is sufficient to make the taper surface 1091 of the conical piece 109 communicate with the first opening 1041 of the communicating tube structure 104 spaced apart, so that the fluid can flow into the communication pipe structure 104 through the gap between the conical surface 1091 of the conical member 109 and the first opening 1041; The bottom 1013 of the trough body 101 is spaced apart by a distance, so that the fluid can pass through the drainage hole 10131 through the gap between the bottom surface of the cone 109 and the drainage hole 10131 , and can further flow into the third columnar trough body 103 . In one embodiment, the diameter (or maximum width) of the bottom surface of the conical piece 109 is larger than the diameter (or maximum width) of the communicating pipe structure 104 , so that the wide end 1093 of the conical piece 109 is relative to the pipe of the communicating pipe structure 104 . The walls protrude outwards. Through the configuration of the conical piece 109, the function of separating the purified water and the sewage is achieved.

FIG. 3 is a schematic diagram of the fluid flow of the filter device 10 disclosed in an embodiment of the present application. Please refer to FIGS. 3 and 4 together. The fluid to be treated enters the first columnar tank body 101 from the first pipe body 106 along the flow direction a. The fluid to be treated surrounds the annular flow channel C along the flow direction b, and the impurity particles in the fluid to be treated move toward the direction of the first side wall 1011 due to centrifugal force. Therefore, the purified water is distributed in the position where the annular flow channel C is deviated from the center, and the sewage with impurity particles is distributed in the position where the annular flow channel C is away from the center. In addition, in one embodiment, the conical member 109 is arranged in the center of the annular flow channel C, so that the position where the centrifugal force of the fluid in the annular flow channel C is zero is occupied by the conical member 109, so that the impurity particles will not accumulate in the The case of the center of the annular flow channel C. Based on this, the sewage with impurity particles is precipitated by gravity, and flows along the flow direction c' to the sewage hole 10131 in the bottom 1013 of the first columnar tank 101, and enters the third columnar tank 103. Finally, the sewage collected in the third columnar tank body 103 is discharged by the third pipe body 108 along the flow direction d'. The preliminarily purified fluid enters the second columnar tank body 102 along the flow direction c due to the push of hydraulic pressure. Here, in one embodiment, the bottom plate 1051 of the filter screen structure 105 is a water-impermeable baffle plate, so that the fluid will not directly rush into the inner chamber 10241 of the filter screen structure 105 and cause most impurity particles to gather on the bottom plate of the filter screen structure 105 1051 , and make the fluid flow toward the second side wall 1021 along the gap between the bottom plate 1051 of the screen structure 105 and the bottom 1023 of the second columnar groove body 102 . The fluid to be treated rotates along the flow direction b in the annular flow channel C of the first cylindrical tank body 101. Due to the viscous force of the fluid, the initially purified fluid also flows along the flow direction d in the outer annular chamber 10242 of the second cylindrical tank body 102. rotate. The fluid enters the inner chamber 10241 from the outer annular chamber 10242 of the second cylindrical groove body 102 along the flow direction e, and is filtered by the annular filter screen 1052 . Part of the filtered impurity particles adhere to the outer wall of the ring filter 1052 . Finally, the purified fluid leaves the filter device 10 from the second pipe body 107 at the top 1022 of the second columnar tank body 102 along the flow direction f.

It should be understood that FIG. 3 and FIG. 4 only schematically represent the main flow direction of the fluid in the filter device 10 by arrows, so as to facilitate the understanding of the technical effect of the filter device 10 in some embodiments of the present application, but not for restricting the fluid in the filter device. The only flow within 10. For example, fast-flowing fluids generate turbulent flow that deviates from the main flow directions shown in FIGS. 3 and 4 . For another example, the first pipe body 106 in FIG. 3 is connected to the first side wall 1011 along the clockwise tangential direction of the annular flow channel C; if the aforementioned connecting direction is adjusted to the counterclockwise tangential direction, the fluid will flow in the annular flow channel C. The flow direction b of C and the flow direction d of the outer ring chamber 10242 are opposite to those shown in FIG. 3 .

In one embodiment, the filter device 10 includes a first columnar tank body 101 , a second columnar tank body 102 , a communication pipe structure 104 , a filter screen structure 105 , a spray head 110 , a first pipe body 106 and a second pipe body 107 . The spray head 110 is disposed on the top 1022 of the second cylindrical tank body 102 , and the nozzle of the spray head 110 is located in the inner chamber 10241 of the second cylindrical tank body 102 and faces the annular filter screen 1052 . In this way, when the user or the automatic control system cleans/maintains the filter device 10, the impurity particles adhering to the outer wall of the annular filter 1052 can be backwashed by the liquid sprayed from the nozzle (the filter device 10 can be used for purification). The finished fluid, the same fluid as the fluid to be treated and free of impurity particles or purified water). The sewage generated by backwashing the filter screen structure 105 can flow to the first columnar tank body 101 through the communication pipe structure 104 and the conical member 109 , and then be discharged through the sewage hole 10131 in the bottom 1013 of the first columnar tank body 101 . In one embodiment, the water pump 111 ′ is disposed on the top 1022 of the second columnar tank body 102 and connected to the spray head 110 to pressurize the liquid and then input it to the spray head 110 . In one embodiment, the bottom 1023 of the second columnar groove body 102 forms an inward inclined surface, and the second opening 1042 of the communicating tube structure 104 is disposed at the center of the indented inclined surface of the bottom 1023 of the second columnar groove body 102 . In this way, the sewage generated by the backwashing filter screen structure 105 is concentrated by the inwardly retracted inclined surface and flows to the communication pipe structure 104 .

To sum up, the filter device 10 of the present application provides a double-effect filtration method of centrifugal and filter screen, and the filter screen structure 105 is completely arranged in the second columnar tank body 102, so that the utilization rate of the filter screen surface can reach 100%. On the other hand, the filter device 10 can be operated by the water pressure of the fluid to be treated. In one embodiment, the nozzle 110 of the filter device 10 can also be operated by the water pressure of the backwashing fluid itself, so as to achieve an energy saving effect. Through a unique structural design, this creation provides the technical benefits that traditional sand filter buckets and particle filters can bring. Moreover, under the same processing flow rate, the total volume and weight of the filter device 10 are greatly reduced to 1/20 to 1/10 of the conventional device, which is easy to install and operate.

10: Filter device 101: The first columnar groove 1011: First Sidewall 1012: Top 1013: Bottom 10131: drain hole 102: The second columnar groove 1021: Second Sidewall 1022: Top 1023: Bottom 1024: Chamber 10241: Inner chamber 10242: Outer Ring Chamber 103: The third cylindrical groove 1031: Third Sidewall 1032: Top 104: Unicom tube structure 1041: The first opening 1042: Second Opening 105: Filter structure 1051: Bottom Plate 1052: Ring filter 106: The first tube body 1061: Water inlet 1062: Water outlet 107: Second body 1071: Inlet 1072: Water outlet 108: The third body 1081: Inlet 1082: Water outlet 109: Tapered pieces 1091: Cone 1092: narrow end 1093: wide end 110: Nozzle 111, 111': water pump 112: Exhaust valve 113: Water valve C: annular flow channel a,b,c,c',d,d',e,f: flow direction

[FIG. 1] is a schematic perspective view of a filter device disclosed in an embodiment of the present application. [Fig. 2] is an exploded schematic diagram of the filter device disclosed in an embodiment of the present case. [FIG. 3] is a schematic diagram of the fluid flow of the filter device disclosed in an embodiment of the present application. [FIG. 4] is a schematic cross-sectional view of a filter device disclosed in an embodiment of the present application.

10: Filter device

101: The first columnar groove

1011: First Sidewall

1012: Top

1013: Bottom

102: The second columnar groove

1021: Second Sidewall

1022: Top

1023: Bottom

1024: Chamber

10241: Inner chamber

10242: Outer Ring Chamber

103: The third cylindrical groove

1031: Third Sidewall

1032: Top

104: Unicom tube structure

105: Filter structure

1051: Bottom Plate

1052: Ring filter

106: The first tube body

1061: Water inlet

107: Second body

108: The third body

1081: Inlet

1082: Water outlet

110: Nozzle

111, 111': water pump

112: Exhaust valve

113: Water valve

C: annular flow channel

Claims (9)

A filter device comprising: a first column-shaped groove body, comprising a first side wall, the first column-shaped groove body has an annular flow channel; a second column-shaped groove body comprising a second side wall, the first column-shaped groove body has a cavity, and the bottom of the second column-shaped groove body is connected to the top of the first column-shaped groove body; A communication pipe structure is disposed in the first cylindrical groove body and the annular flow channel surrounds the communication pipe structure. The communication pipe structure has a first opening and a second opening, and the first opening is connected to the annular flow channel , the second opening is connected to the bottom of the second columnar groove; A filter screen structure is disposed in the second columnar groove body, the filter screen structure includes a bottom plate and an annular filter screen, the bottom plate faces the second opening of the communication pipe structure and is spaced apart from the second opening, the an annular filter is connected to the bottom plate and divides the chamber into an inner chamber and an outer ring chamber; and A first pipe body includes a water inlet and a water outlet, the water outlet of the first pipe body is connected to the first side wall of the first columnar tank body, and the water outlet of the first pipe body faces the annular flow the tangential direction of the channel, so that the fluid flows along the annular flow channel after entering the first columnar groove body from the first pipe body. The filtering device according to claim 1, further comprising a second pipe body and a water pump, the second pipe body includes a water inlet and a water outlet, and the water inlet of the second pipe body is connected to the second columnar body In the inner chamber of the tank body, the water outlet of the second pipe body is connected to the water pump. The filter device as claimed in claim 1, further comprising an exhaust valve disposed on the top of the second side wall to communicate with the chamber and the atmospheric environment. The filter device according to claim 1, further comprising a conical piece, the conical piece has a narrow end and a wide end, the narrow end of the conical piece extends from the first opening into the communication pipe structure, And the conical surface of the conical piece faces the first opening and is spaced apart from the first opening by a distance. The filtering device of claim 4, wherein the bottom of the first columnar groove body forms a retracted slope, the bottom of the first columnar groove body includes a drain hole, and the drain hole is located in the retraction. the center of the slope. The filtering device according to claim 5, further comprising a third column-shaped groove body and a third pipe body, the third column-shaped groove body includes a third side wall, and the top of the third column-shaped groove body is connected At the bottom of the second columnar tank body, the third pipe body includes a water inlet and a water outlet, and the water inlet of the third pipe body is connected to the third side wall of the third columnar tank body. The filtering device according to claim 6, further comprising two water valves, which are respectively disposed at the water inlet of the first pipe body and the water outlet of the third pipe body. The filtering device according to claim 1, further comprising a spray head disposed on the top of the second column-shaped groove body, the spray head including a nozzle, the nozzle is located in the inner chamber of the second column-shaped groove body and faces the Ring filter. A filter device comprising: a first columnar tank body, comprising a first side wall, the first columnar tank body has an annular flow channel, and the first side wall includes a water inlet, which communicates with the annular flow channel; a second column-shaped groove body comprising a second side wall, the first column-shaped groove body has a cavity, and the bottom of the second column-shaped groove body is connected to the top of the first column-shaped groove body; A communication pipe structure is disposed in the first cylindrical groove body and the annular flow channel surrounds the communication pipe structure. The communication pipe structure has a first opening and a second opening, and the first opening is connected to the annular flow channel , the second opening is connected to the bottom of the second columnar groove; and A filter screen structure is disposed in the second columnar groove body, the filter screen structure includes a bottom plate and an annular filter screen, the bottom plate faces the second opening of the communication pipe structure and is spaced apart from the second opening, the The annular filter screen is connected to the bottom plate and divides the chamber into an inner chamber and an outer ring chamber.

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