High-pressure backwashing filter device and sewage treatment equipment

Abstract

This utility model relates to the field of wastewater filtration technology, and in particular to a high-pressure backwashing filtration device and wastewater treatment equipment. The high-pressure backwashing filtration device includes: a filter element disposed within a housing assembly, with a wastewater zone formed on a first side of the filter element and a clean water zone formed on a second side; a drive shaft disposed in the clean water zone, with the filter element rotating together with the drive shaft; a turbulence-inducing component mounted on the drive shaft and having a turbulence-inducing portion extending into the wastewater zone; a water inlet channel on the housing assembly connecting to the outlet of a water pump; and a jetting component disposed in the clean water zone, with a jetting channel on the jetting component, the inlet end of which connects to the outlet end of the water inlet channel, and the outlet end of the jetting channel facing the second side of the filter element. This utility model enables high-pressure water output from the water pump to be jetted out through the jetting channel, combining with the vortex formed by the rotating turbulence-inducing component and the centrifugal force generated by the rotating filter element to achieve efficient and thorough cleaning of impurities deposited on the surface of the filter element.

Description

Technical Field

[0001] This utility model relates to the field of sewage filtration technology, and in particular to a high-pressure backwashing filtration device and sewage treatment equipment. Background Technology

[0002] Wastewater treatment equipment can effectively treat domestic sewage and industrial wastewater, preventing sewage and impurities from directly flowing into water bodies, which is of great significance for improving the ecological environment and promoting economic development. Current wastewater treatment methods require the use of filters to remove particulate matter. However, after a period of use, impurities easily accumulate on the surface of the filters, affecting their filtration efficiency. Therefore, the surface of the filters needs to be cleaned. Cleaning methods include manual cleaning (removing the filters from the equipment and washing them manually with a brush) and automatic cleaning (rinsing the filter surface with water). Manual cleaning is time-consuming, labor-intensive, and inefficient, while automatic cleaning may result in some areas of the filter surface not being removed, leading to unsatisfactory cleaning results. Utility Model Content

[0003] In view of this, the purpose of this application is to provide a high-pressure backwashing filter device and sewage treatment equipment to solve the problem that existing sewage treatment equipment requires cleaning of the filter screen surface after a period of use. Manual cleaning is time-consuming, labor-intensive, and inefficient, while automatic cleaning is not thorough.

[0004] The first aspect of this utility model provides a high-pressure backwashing filter device, comprising: Housing components; A filter element is disposed within the housing assembly, wherein a wastewater zone is formed on a first side of the filter element and a clean water zone is formed on a second side of the filter element; A drive assembly includes a drive element and a transmission shaft driven to rotate by the drive element; the transmission shaft is disposed in the water purification zone; the filter element rotates together with the transmission shaft; A flow-dispersing component, mounted on the drive shaft and having a flow-dispersing portion extending into the wastewater zone; A water pump is mounted on the housing assembly, and the housing assembly has an inlet channel that connects to the outlet of the water pump; A spray element is disposed in the water purification area. The spray element has a spray channel. The inlet end of the spray channel is connected to the outlet end of the water inlet channel. The outlet end of the spray channel faces the second side of the filter element.

[0005] Preferably, the spray element is mounted on the housing assembly; the spray element is formed as a strip structure extending along the axis of the drive shaft; a high-pressure water outlet is formed at the outlet end of the spray channel, and a plurality of the high-pressure water outlets are arranged at intervals along the length direction of the spray element.

[0006] Preferably, the end of the high-pressure water outlet facing the second side is formed as a flared structure.

[0007] Preferably, the drive shaft includes: The first axis is connected to the drive component; The second shaft is connected to the end of the first shaft away from the drive member. The second shaft has a water outlet channel that communicates with the water purification area. A water outlet cavity that communicates with the water outlet channel is formed between the housing assembly and the second shaft. The water outlet cavity communicates with the water inlet of the water pump. Preferably, both the water pump and the drive component are driven by hydraulic oil; The water pump has a first oil inlet and a first oil return port; the drive unit has a second oil inlet and a second oil return port. The first oil inlet and the second oil return port are connected via an oil pipeline, or the first oil return port and the second oil inlet are connected via an oil pipeline. Preferably, the outlet of the water pump is connected to the inlet channel through a high-pressure cleaning pipeline, and a high-pressure water control valve is provided on the high-pressure cleaning pipeline. The high-pressure water control valve drives the valve core to move through hydraulic oil, thereby connecting or disconnecting the outlet of the water pump from the inlet channel. The oil inlet on the oil control pipeline connecting the high-pressure water-hydraulic control valve is connected in parallel with the oil inlet on the drive component, or the oil inlet on the oil control pipeline connecting the high-pressure water-hydraulic control valve is connected in parallel with the oil inlet on the water pump.

[0008] Preferably, the water pump is provided with an adapter, the adapter having a first connecting part, a second connecting part and a third connecting part, the first connecting part being connected to the outlet of the water pump, the second connecting part being connected to the high-pressure cleaning pipeline, and the third connecting part being connected to the high-pressure water receiving device.

[0009] Preferably, the housing assembly has an inlet hole communicating with the wastewater zone, and a pressure reducing valve is installed on the housing assembly, the pressure reducing valve having a filtered water outlet hole communicating with the purified water zone. Preferably, the outer casing assembly has a sewage discharge hole that communicates with the sewage area; The high-pressure backwashing filter device also includes: A drain valve is installed on the housing assembly and has a drain channel that can connect to the sewage discharge hole. The drain valve is driven by hydraulic oil to make the drain channel connect or disconnect from the sewage discharge hole. The oil inlet on the oil control pipeline connecting the drain valve is connected in parallel with the oil inlet on the drive unit, or the oil inlet on the oil control pipeline connecting the drain valve is connected in parallel with the oil inlet on the water pump.

[0010] The second aspect of this utility model provides a wastewater treatment device, including the high-pressure backwashing filter device described in any of the above technical solutions.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: In this high-pressure backwashing filtration device, a filter element is disposed within a housing assembly. A wastewater zone is formed on the first side of the filter element, and a clean water zone is formed on the second side. The drive assembly includes a drive element and a transmission shaft driven to rotate by the drive element. The transmission shaft is disposed in the clean water zone. The filter element rotates together with the transmission shaft, and the rotation of the filter element generates centrifugal force, causing impurities deposited on the surface of the filter element to be thrown outward. A turbulence-inducing element is installed on the transmission shaft and has a turbulence-inducing part extending into the wastewater zone. When the transmission shaft rotates, a vortex is formed within the housing assembly under the agitation of the turbulence-inducing part, thereby rinsing the impurities on the surface of the filter element. A water pump is installed on the housing assembly, and the housing assembly has an inlet channel communicating with the outlet of the water pump. The spray nozzle is located in the clean water area and has a spray channel. The inlet end of the spray channel is connected to the outlet end of the inlet channel, and the outlet end of the spray channel faces the second side of the filter element. This allows the high-pressure water output by the water pump to enter the inlet channel through the water pump outlet and then be sprayed out at high pressure through the outlet end of the spray channel. Since most of the deposited impurities are concentrated on the first side of the filter element, pressurizing from the second side to the first side is more conducive to cleaning the filter element, thereby achieving the purpose of efficiently and thoroughly cleaning the impurities deposited on the surface of the filter element. This allows the sewage treatment equipment to be efficiently and thoroughly cleaned without disassembling or replacing the filter element, which is convenient for maintenance and extends the service life of the equipment.

[0012] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0013] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0014] Figure 1 An isometric view of the high-pressure backwashing filter device provided in Embodiment 1 of this utility model; Figure 2 A schematic diagram of the high-pressure backwashing filter device provided in Embodiment 1 of this utility model from a first-view perspective; Figure 3 For along Figure 2 Cross-sectional view taken at point AA in the middle; Figure 4 A schematic diagram of the high-pressure backwashing filter device provided in Embodiment 1 of this utility model from a second perspective; Figure 5 A schematic diagram of the high-pressure backwashing filter device provided in Embodiment 1 of this utility model from a third-person perspective; Figure 6 An isometric view of the high-pressure backwashing filter device provided in Embodiment 2 of this utility model; Figure 7 A schematic diagram of the high-pressure backwashing filter device provided in Embodiment 2 of this utility model from a first-view perspective; Figure 8 For along Figure 7 Cross-sectional view taken at point BB in the middle; Figure 9 A schematic diagram of the high-pressure backwashing filter device provided in Embodiment 2 of this utility model from a second perspective; Figure 10 A schematic diagram of the high-pressure backwashing filter device provided in Embodiment 2 of this utility model from a third-person perspective; Figure 11 This is a schematic diagram of the spray component in the high-pressure backwashing filter device provided in Embodiments 1 and 2 of this utility model.

[0015] Icons: 10-Outer shell assembly; 11-Main shell; 12-Bearing housing; 13-Bearing cover; 14-Injector; 140-Injection channel; 101-Water inlet channel; 102-High-pressure water outlet; 103-Water inlet hole; 104-Filtered water outlet; 105-Sewage discharge hole; 110-Stop valve; 20-Filter element; 21-Sewage zone; 22-Clean water zone; 31-Drive component; 311-Second oil inlet; 312-Second oil return port; 32-Drive shaft; 321-First shaft; 322-Second shaft; 3221-Water outlet channel; 3222 - Water outlet chamber; 40- Turbulence-disrupting component; 41- Turbulence-disrupting part; 50- Water pump; 51- First oil inlet; 52- First oil return port; 60- Adapter joint; 601- First connecting part; 602- Second connecting part; 603- Third connecting part; 61- Oil delivery pipeline; 62- High-pressure cleaning pipeline; 63- Oil control pipeline; 631- Oil passage; 64- Water inlet pipe; 71- Pressure reducing valve; 72- High-pressure water control valve; 73- Drain valve; 731- Drain channel; 81- Bearing; 82- Oil nozzle; 83- Exhaust valve; 90- Seal; 100- Adapter joint. Detailed Implementation

[0016] The following detailed embodiments are provided to help the reader gain a comprehensive understanding of the methods, apparatus, and / or systems described herein. However, various changes, modifications, and equivalents of the methods, apparatus, and / or systems described herein will be apparent after understanding the disclosure of this application. For example, the order of operations described herein is merely illustrative and is not limited to the order set forth herein; changes that will be apparent after understanding the disclosure of this application are possible, except for operations that must occur in a specific order. Furthermore, for clarity and brevity, descriptions of features known in the art may be omitted.

[0017] The features described herein may be implemented in different forms and should not be construed as being limited to the examples described herein. Rather, the examples described herein have been provided merely to illustrate some of the many feasible ways of implementing the methods, apparatus, and / or systems described herein that will be apparent upon understanding the disclosure of this application.

[0018] Throughout the specification, when an element (such as a layer, region, or substrate) is described as being "on" another element, "connected to" another element, "bonded to" another element, "on" another element, or "covering" another element, it may be directly "on" another element, "connected to" another element, "bonded to" another element, "on" another element, or "covering" another element, or there may be one or more other elements in between. In contrast, when an element is described as being "directly on" another element, "directly connected to" another element, "directly bonded to" another element, "directly on" another element, or "directly covering" another element, there may be no other elements in between.

[0019] As used herein, the term “and / or” includes any one of the relevant items listed and any combination of any two or more items.

[0020] Although terms such as “first,” “second,” and “third” may be used herein to describe individual components, assemblies, regions, layers, or parts, these components, assemblies, regions, layers, or parts are not limited by these terms. Rather, these terms are used only to distinguish one component, assembly, region, layer, or part from another. Therefore, without departing from the teachings of the examples described herein, the first component, assembly, region, layer, or part referred to as the second component, assembly, region, layer, or part may also be referred to as the second component, assembly, region, layer, or part.

[0021] For ease of description, spatial relation terms such as “above,” “upper,” “below,” and “lower” are used herein to describe the relationship between one element and another, as shown in the accompanying drawings. Such spatial relation terms are intended to include not only the orientation depicted in the drawings but also different orientations of the device during use or operation. For example, if the device in the drawings is flipped, an element described as being “above” or “upper” relative to another element will subsequently be “below” or “lower” relative to that other element. Therefore, the term “above” includes both “above” and “below” orientations depending on the spatial orientation of the device. The device may also be positioned in other ways (e.g., rotated 90 degrees or in other orientations), and the spatial relation terms used herein will be interpreted accordingly.

[0022] The terminology used herein is for the purpose of describing various examples only and is not intended to limit this disclosure. Unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. The terms “comprising,” “including,” and “having” enumerate the stated features, quantities, operations, components, elements, and / or combinations thereof, but do not exclude the presence or addition of one or more other features, quantities, operations, components, elements, and / or combinations thereof.

[0023] Variations in the shapes shown in the accompanying drawings may occur due to manufacturing techniques and / or tolerances. Therefore, the examples described herein are not limited to the specific shapes shown in the accompanying drawings, but include changes in shape that may occur during manufacturing.

[0024] The features of the examples described herein can be combined in various ways that will be apparent upon understanding the disclosure of this application. Furthermore, although the examples described herein have a wide variety of constructions, other constructions are possible, as will be apparent upon understanding the disclosure of this application.

[0025] According to a first aspect of the present invention, a high-pressure backwashing filtration device is provided, which includes a housing assembly 10, a filter element 20, a drive assembly, a baffle element 40, and a water pump 50.

[0026] The specific structure of the above-mentioned components of the high-pressure backwashing filter according to this embodiment will be described below.

[0027] Example 1 In this embodiment, as Figures 1 to 5As shown, the housing assembly 10 has a water inlet hole 103 for introducing water to be filtered into the housing assembly 10. A filter element 20 is disposed inside the housing assembly 10. The filter element 20 is formed as a filter screen structure with multiple through holes on its surface. A wastewater zone 21 is formed on the first side of the filter element 20, and a clean water zone 22 is formed on the second side of the filter element 20. The first and second sides of the filter element 20 are respectively located at opposite ends of the through holes on the filter element 20 along the axial direction. That is, the water to be filtered is located on the first side of the filter element 20 before passing through it, and on the second side after passing through it. In this way, the filter element 20 blocks impurities in the water to be filtered in the wastewater zone 21, and the filtered water enters the clean water zone 22.

[0028] like Figure 3 As shown, the drive assembly includes a drive member 31 and a drive shaft 32 driven to rotate by the drive member 31; the drive shaft 32 is disposed in the clean water zone 22; the filter element 20 rotates together with the drive shaft 32, and the rotation of the filter element 20 can generate centrifugal force, causing impurities deposited on the surface of the filter element 20 to be thrown outward. The filter element 20 can be directly or indirectly fixed to the drive shaft 32. For example, the filter element 20 can be installed on the baffle 40, thus achieving fixation relative to the drive shaft 32 through the baffle 40 installed on the drive shaft 32; the baffle 40 has a baffle portion 41 extending into the sewage zone 21. When the drive shaft 32 rotates, a vortex is formed in the housing assembly 10 under the agitation of the baffle portion 41, so as to wash the impurities on the surface of the filter element 20; the baffle 40 can be a turbine, and the baffle portion 41 is the blade on the turbine.

[0029] like Figures 1 to 5 As shown, the water pump 50 is mounted on the housing assembly 10. Specifically, the water pump 50 can be mounted on the outer wall of the housing assembly 10. The housing assembly 10 has an inlet channel 101 that connects to the outlet of the water pump 50. When the water pump 50 is working, it can output high-pressure water to the outlet, and the output high-pressure water can enter the inlet channel 101.

[0030] Figure 3 and Figure 11As shown, the spray element 14 is disposed in the clean water zone 22. The spray element 14 has a spray channel 140. The inlet end of the spray channel 140 is connected to the outlet end of the water inlet channel 101. The outlet end of the spray channel 140 faces the second side of the filter element 20. This allows the high-pressure water output by the water pump 50 to enter the water inlet channel 101 through the outlet of the water pump 50, and then spray out through the spray channel 140. Since the first side of the filter element 20 forms a sewage zone 21, most of the deposited impurities accumulate on the first side of the filter element 20. Therefore, pressurizing from the second side to the first side is more conducive to cleaning the filter element 20. Combined with the vortex formed by the rotating turbulence element 40 and the centrifugal force generated by the rotating filter element 20, the purpose of efficiently and thoroughly cleaning the impurities deposited on the surface of the filter element 20 is achieved. This allows the sewage treatment equipment to be efficiently and thoroughly cleaned without disassembling or replacing the filter element 20, which is convenient for maintenance and extends the service life of the equipment.

[0031] It should be noted that in this embodiment, when the filter element 20 needs to be cleaned, the drive unit 31 and the water pump 50 are started. The drive unit 31 drives the transmission shaft 32 to rotate, and the water pump 50 outputs high-pressure water. When the filter element 20 does not need to be cleaned, the drive unit 31 and the water pump 50 can be turned off to perform normal filtration.

[0032] Preferably, in this embodiment, such as Figure 3 As shown, the filter element 20 is formed into a cylindrical structure, such as a cylindrical structure with a circular or polygonal cross-section, so that the interior of the filter element 20 forms a clean water zone 22, and the outer wall of the filter element 20 and the outer shell assembly 10 form a wastewater zone 21, and at least part of the drive shaft 32 extends into the cylindrical structure of the filter element 20.

[0033] Furthermore, in this embodiment, as Figure 3 and Figure 11 As shown, the spray element 14 is mounted on the housing assembly 10, thereby fixing the spray element 14 relative to the housing assembly 10. Specifically, the spray element 14 is formed as a strip-shaped structure extending along the axis of the drive shaft 32, for example, the spray element 14 is formed as a rod-shaped structure. The spray element 14 and the drive shaft 32 are spaced apart in the radial direction of the drive shaft 32. The spray channel 140 is disposed inside the strip-shaped structure and preferably extends along the length direction of the strip-shaped structure. A high-pressure water outlet 102 is formed at the outlet end of the spray channel 140. Multiple high-pressure water outlets 102 are arranged at intervals along the length direction of the spray element 14, so that the filter element 20 can rotate in coordination with the high-pressure water flow sprayed from the multiple high-pressure water outlets 102 to achieve a thorough rinsing of the filter element 20 around its circumference.

[0034] Furthermore, in this embodiment, as Figure 11As shown, the end of the high-pressure water outlet 102 facing the second side is formed into a flared structure. The flared structure can be a trumpet-shaped or funnel-shaped structure, which increases the contact area between the sprayed high-pressure water flow and the filter element 20 and improves the cleaning effect of the filter element 20.

[0035] In this embodiment, as Figures 1 to 5 As shown, the housing assembly 10 includes a housing body 11, bearing seats 12 and bearing covers 13. As described above, the water inlet 103 is opened on the housing body 11. The inner wall of the housing body 11 and the filter element 20 form a sewage area 21. Two bearing seats 12 are respectively arranged on both sides of the housing body 11. The drive element 31 is arranged on the side of one of the bearing seats 12 away from the housing body 11. The bearing cover 13 is arranged on the side of the other bearing seat 12 away from the housing body 11. The two ends of the drive shaft 32 in the axial direction are respectively engaged with the two bearing seats 12.

[0036] Furthermore, in this embodiment, to facilitate the replacement of the filter element 20 and improve assembly processability, such as Figure 3 As shown, the drive shaft 32 includes a first shaft 321 and a second shaft 322 connected to each other axially. One axial end of the filter element 20 is fixed to the first shaft 321, and the other axial end of the filter element 20 is fixed to the second shaft 322. Preferably, the axes of the first shaft 321 and the second shaft 322 are collinear. The first shaft 321 mates with one of the two bearing seats 12, and the second shaft 322 mates with the other of the two bearing seats 12. Specifically, the first shaft 321 is connected to the drive member 31, and the second shaft 322 is connected to the end of the first shaft 321 away from the drive member 31, so that the drive member 31 drives the first shaft 321 to rotate, and the second shaft 322 rotates synchronously with the first shaft 321. The water inlet channel 101 described above can be provided on the bearing seat 12 that mates with the first shaft 321.

[0037] like Figure 3 As shown, the baffle 40 can be installed on the second shaft 322. The second shaft 322 has a water outlet channel 3221 that connects to the water purification zone 22. A water outlet cavity 3222 that connects to the water outlet channel 3221 is formed between the outer shell assembly 10 and the second shaft 322. Part of the water outlet cavity 3222 is formed as an annular structure formed by the inner wall of the bearing seat 12 being recessed inward or by the outer wall of the second shaft 322 being recessed inward. The remaining water outlet cavity 3222 is formed as a channel structure that connects the annular structure and the outside of the bearing seat 12, so that the water outlet cavity 3222 can connect to the water inlet of the water pump 50, thereby supplying water to the water pump 50.

[0038] In other alternative embodiments, the drive shaft 32 is formed as a single unit.

[0039] In this embodiment, as Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, the water inlet and outlet chamber 3222 of the water pump 50 are connected through the water inlet pipe 64, and the water outlet and water inlet channel 101 of the water pump 50 are connected through the high-pressure cleaning pipeline 62. It should be noted that an adapter 100 can be installed on the outside of the water pump 50. The adapter 100 can be a block structure, which is conducive to the connection of various interfaces on the water pump 50. The water inlet, water outlet, and the first oil inlet 51 and the first oil return port 52 described below are all connected to the openings on the adapter 100. The water inlet pipe 64, the high-pressure cleaning pipeline 62, and the oil delivery pipeline 61 described below can be directly assembled with the adapter 100.

[0040] Furthermore, in this embodiment, as Figure 3 As shown, a bearing 81 is provided between the bearing housing 12 and the drive shaft 32. The bearing housing 12 is provided with an opening that connects to the bearing 81. An oil nozzle 82 is installed on the opening so that lubricating oil for lubricating the bearing 81 can be injected. An exhaust valve 83 is installed on other openings of the bearing 81 to ensure that the lubricating oil is injected smoothly and to meet the lubrication requirements of the bearing 81.

[0041] In a preferred embodiment, such as Figures 1 to 5 As shown, both the water pump 50 and the drive unit 31 are driven by hydraulic oil. The drive unit 31 can be configured as a hydraulic motor. Specifically, the water pump 50 has a first oil inlet 51 and a first oil return port 52. Hydraulic oil can enter the water pump 50 from the first oil inlet 51 and then flow out from the first oil return port 52 to drive the water pump 50 to work. The drive unit 31 has a second oil inlet 311 and a second oil return port 312. Hydraulic oil can enter the drive unit 31 from the second oil inlet 311 and then flow out from the second oil return port 312 to drive the drive unit 31 to work.

[0042] Specifically, in the first preferred embodiment, the first oil inlet 51 and the second oil return port 312 are connected via the oil supply pipeline 61. At this time, the second oil inlet 311 can be connected to the oil supply system, so that hydraulic oil flows in from the second oil inlet 311 and flows out from the second oil return port 312. After flowing out, it directly enters the first oil inlet 51 via the oil supply pipeline 61 and then flows out from the first oil return port 52. In the second preferred embodiment, the first oil return port 52 and the second oil inlet 311 are connected via the oil supply pipeline 61. At this time, the first oil inlet 51 can be connected to the oil supply system, so that hydraulic oil flows in from the first oil inlet 51 and flows out from the first oil return port 52. After flowing out, it directly enters the second oil inlet 311 via the oil supply pipeline 61 and then flows out from the second oil return port 312. In the first and second preferred embodiments, the hydraulic oil circuits of the water pump 50 and the drive unit 31 can be connected in series, so that the water pump 50 and the drive unit 31 can be started synchronously. In other alternative embodiments, the water pump 50 may be driven by a power source such as a motor or cylinder, and the drive unit 31 may be a power source such as a motor or cylinder.

[0043] In a preferred embodiment, such as Figures 1 to 5 As shown, a pressure reducing valve 71 is installed on the housing assembly 10. The pressure reducing valve 71 has a filtered water outlet 104 that connects to the clean water zone 22, so that the pressure reducing valve 71 is connected to the water outlet chamber 3222 as described above, in order to control the water outlet pressure and avoid high water pressure from damaging water-using equipment, such as providing low-pressure water for spraying inside the tunneling machine to extend the life of the sealing structure. In this embodiment, as Figures 1 to 5 As shown, the housing assembly 10 has a sewage discharge hole 105 that communicates with the sewage area 21. Impurities in the water can be discharged from the housing assembly 10 through the sewage discharge hole 105. The sewage discharge hole 105 can be located at the bottom of the housing assembly 10. The sewage discharge hole 105 and the water inlet hole 103 can be arranged opposite each other on both sides of the housing assembly 10 in the radial direction.

[0044] Furthermore, in this embodiment, the high-pressure backwashing filter also includes a drain valve 73. The drain valve 73 is mounted on the housing assembly 10 and has a drain channel 731 that connects to the sewage discharge hole 105. By controlling whether the drain channel 731 is connected to the sewage discharge hole 105, the discharge of impurities from the housing assembly 10 is controlled. Specifically, the drain valve 73 is provided with a valve core. The movement of the valve core can connect or disconnect the drain channel 731 from the sewage discharge hole 105, thereby enabling normal sewage discharge when connected. Figure 1 As shown, the shut-off valve 110 is connected to the drain channel 731 of the drain valve 73. When the drain valve 73 or other structures malfunction and cannot be cleaned, the shut-off valve 110 can be temporarily closed to facilitate maintenance so as not to affect the operation of downstream equipment.

[0045] In a preferred embodiment, the drain valve 73 is driven by hydraulic oil to connect the drain valve 73 to the oil supply system together with the hydraulic oil-driven water pump 50 or the hydraulic oil-driven drive component 31. Specifically, in a first preferred embodiment, the oil inlet on the oil control pipeline 63 connecting the drain valve 73 is connected in parallel with the oil inlet on the drive component 31 (i.e., the second oil inlet 311 as described above). In a second optional embodiment, the oil inlet on the oil control pipeline 63 connecting the drain valve 73 is connected in parallel with the oil inlet on the water pump 50 (i.e., the first oil inlet 51 as described above).

[0046] Furthermore, in this embodiment, the high-pressure backwashing filter device also includes a seal 90, which can be an annular sealing structure. Specifically, as shown... Figure 3As shown, at least two seals 90 are radially disposed between the outer wall of the second shaft 322 and the inner wall of the bearing housing 12, and are respectively disposed at the two axial ends of the annular structure of the water outlet cavity 3222 to achieve a seal on the water outlet cavity 3222; at least one seal 90 is radially disposed between the outer wall of the first shaft 321 and the inner wall of the bearing housing 12, and is axially disposed on the side of the bearing 81 facing the clean water zone 22 to achieve a seal on the clean water zone 22 and prevent the lubricating oil of the bearing 81 from entering the clean water zone 22; at least one seal 90 is radially disposed between the outer wall of the bearing housing 12 and the filter element 20 to achieve a seal on the clean water zone 22 and prevent water from the sewage zone 21 from entering and affecting the filtration accuracy. In this embodiment, the seal 90 is a rotary seal structure, such as a Glyd ring.

[0047] Example 2 In this embodiment, as Figures 6 to 10 As shown, the difference between Embodiment 2 and Embodiment 1 is that no oil pipeline 61 is provided between the water pump 50 and the drive component 31, so that the water pump 50 and the drive component 31 are no longer connected in series, and the water pump 50 and the drive component 31 can be controlled independently. It should be noted that in this embodiment, the water pump 50 and the drive component 31 can also be driven by hydraulic oil.

[0048] Furthermore, in this embodiment, such as Figures 6 to 10 As shown, a high-pressure water control valve 72 is installed on the high-pressure cleaning pipeline 62. Whether the high-pressure water control valve 72 is opened or not determines whether the high-pressure water output by the water pump 50 can enter the water inlet channel 101, thereby determining whether the filter element 20 needs to be cleaned.

[0049] In a preferred embodiment, such as Figures 6 to 10 As shown, the high-pressure water-hydraulic control valve 72 controls the connection or disconnection of the water pump 50's outlet and inlet channel 101 by driving the valve core movement with hydraulic oil. The high-pressure water-hydraulic control valve 72 and the hydraulically driven drive component 31 or the hydraulically driven water pump 50 can be connected together to the oil supply system. Specifically, in the first preferred embodiment, the oil inlet on the control pipeline 63 connecting the high-pressure water-hydraulic control valve 72 is connected in parallel with the oil inlet on the drive component 31 (i.e., the second oil inlet 311 as described above). In the second optional embodiment, the oil inlet on the control pipeline 63 connecting the high-pressure water-hydraulic control valve 72 is connected in parallel with the oil inlet on the water pump 50 (i.e., the first oil inlet 51 as described above).

[0050] Furthermore, in a preferred embodiment, such as Figure 8As shown, the housing of the high-pressure water-hydraulic control valve 72 can be installed on the side of the housing of the drain valve 73 facing away from the outer casing assembly 10. The oil chamber of the drain valve 73 and the oil chamber of the high-pressure water-hydraulic control valve 72 are connected through the oil passage 631. In this way, the drain valve 73 and the high-pressure water-hydraulic control valve 72 can be controlled simultaneously by only one external oil control pipeline 63, making the external pipeline layout neat.

[0051] Furthermore, in this embodiment, such as Figure 6 , Figure 7 , Figure 9 and Figure 10 As shown, the water pump 50 is equipped with an adapter 60, which has a first connecting part 601, a second connecting part 602, and a third connecting part 603 that are interconnected. The first connecting part 601 is connected to the outlet of the water pump 50, the second connecting part 602 is connected to the high-pressure cleaning pipeline 62, and the third connecting part 603 is connected to the high-pressure water receiving equipment. This allows the pump 50 to supply high-pressure water for rinsing the filter element 20 while also supplying high-pressure water to other equipment requiring it, thus improving the utilization rate of the water pump 50. The adapter 60 can be a tee connector, a four-way connector, a five-way connector, etc., as long as it meets the requirement of connecting a sufficient number of high-pressure water receiving devices. According to the high-pressure backwashing filtration device of this utility model, the filter element 20 is disposed inside the housing assembly 10, a wastewater zone 21 is formed on the first side of the filter element 20, and a clean water zone 22 is formed on the second side of the filter element 20; the driving assembly includes a driving member 31 and a transmission shaft 32 driven to rotate by the driving member 31; the transmission shaft 32 is disposed in the clean water zone 22; the filter element 20 rotates together with the transmission shaft 32, and the rotation of the filter element 20 can generate centrifugal force, causing impurities deposited on the surface of the filter element 20 to be thrown outward; a turbulence member 40 is installed on the transmission shaft 32 and has a turbulence part 41 extending into the wastewater zone 21, so that when the transmission shaft 32 rotates, a vortex is formed in the housing assembly 10 under the agitation of the turbulence part 41, so as to wash the impurities on the surface of the filter element 20; a water pump 5 The filter element 20 is installed on the housing assembly 10, which has an inlet channel 101 that connects to the outlet of the water pump 50. The spray element 14 is located in the clean water area 22 and has a spray channel 140. The inlet end of the spray channel 140 is connected to the outlet end of the inlet channel 101, and the outlet end of the spray channel 140 faces the second side of the filter element 20. This allows the high-pressure water output by the water pump 50 to enter the inlet channel 101 through the outlet of the water pump 50 and then be sprayed out under high pressure through the spray channel 140. Since most of the deposited impurities are concentrated on the first side of the filter element 20, pressurizing from the second side to the first side is more conducive to cleaning the filter element 20, thereby achieving the purpose of efficiently and thoroughly cleaning the impurities deposited on the surface of the filter element 20.

[0052] The second aspect of this utility model provides a sewage treatment equipment, including the high-pressure backwashing filter device as described above. The sewage treatment equipment can be efficiently and thoroughly cleaned without disassembling or replacing the filter elements, which facilitates maintenance and extends the service life of the equipment.

[0053] Finally, it should be noted that the above-described embodiments are merely specific implementations of this application, used to illustrate the technical solutions of this application, and not to limit them. The protection scope of this application is not limited thereto. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any person skilled in the art can still modify or easily conceive of changes to the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features, within the technical scope disclosed in this application. Such modifications, changes, or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be covered within the protection scope of this application. Therefore, the protection scope of this application should be determined by the protection scope of the claims.

Claims

1. A high pressure backwash filter apparatus, characterized by, include: Housing components; A filter element is disposed within the housing assembly, wherein a wastewater zone is formed on a first side of the filter element and a clean water zone is formed on a second side of the filter element; A drive assembly includes a drive element and a transmission shaft driven to rotate by the drive element; the transmission shaft is disposed in the water purification zone; the filter element rotates together with the transmission shaft; A flow-dispersing component, mounted on the drive shaft and having a flow-dispersing portion extending into the wastewater zone; A water pump is mounted on the housing assembly, and the housing assembly has an inlet channel that connects to the outlet of the water pump; A spray element is disposed in the water purification area. The spray element has a spray channel. The inlet end of the spray channel is connected to the outlet end of the water inlet channel. The outlet end of the spray channel faces the second side of the filter element.

2. The high pressure backflush filter apparatus of claim 1 wherein, The spray element is mounted on the housing assembly; the spray element is formed as a strip structure extending along the axis of the drive shaft and is spaced apart from the drive shaft in the radial direction of the drive shaft; a high-pressure water outlet is formed at the outlet end of the spray channel; and a plurality of the high-pressure water outlets are arranged at intervals along the length direction of the spray element.

3. The high pressure backflush filter apparatus of claim 2 wherein, The high-pressure water outlet facing the second side is formed into a flared structure.

4. The high pressure backflush filter apparatus of claim 1 wherein, The drive shaft includes: The first axis is connected to the drive component; The second shaft is connected to the end of the first shaft away from the drive member. The second shaft has a water outlet channel that communicates with the water purification area. A water outlet cavity that communicates with the water outlet channel is formed between the housing assembly and the second shaft. The water outlet cavity communicates with the water inlet of the water pump.

5. The high pressure backflush filter apparatus of claim 1 wherein, Both the water pump and the drive component are driven by hydraulic oil. The water pump has a first oil inlet and a first oil return port; the drive unit has a second oil inlet and a second oil return port. The first oil inlet and the second oil return port are connected via an oil pipeline, or the first oil return port and the second oil inlet are connected via an oil pipeline.

6. The high pressure backflush filter apparatus of claim 1 wherein, The outlet of the water pump is connected to the inlet channel through a high-pressure cleaning pipeline. A high-pressure water control valve is installed on the high-pressure cleaning pipeline. The high-pressure water control valve drives the valve core to move through hydraulic oil, thereby connecting or disconnecting the outlet of the water pump from the inlet channel. The oil inlet on the oil control pipeline connecting the high-pressure water-hydraulic control valve is connected in parallel with the oil inlet on the drive component, or the oil inlet on the oil control pipeline connecting the high-pressure water-hydraulic control valve is connected in parallel with the oil inlet on the water pump.

7. The high pressure backflush filter apparatus of claim 6 wherein, The water pump is equipped with an adapter, which has a first connecting part, a second connecting part and a third connecting part. The first connecting part is connected to the outlet of the water pump, the second connecting part is connected to the high-pressure cleaning pipeline, and the third connecting part is connected to the high-pressure water receiving device.

8. The high pressure backflush filter apparatus of claim 1 wherein, The outer casing assembly has an inlet hole that connects to the wastewater zone, and a pressure reducing valve is installed on the outer casing assembly. The pressure reducing valve has a filtered water outlet hole that connects to the clean water zone.

9. The high pressure backflush filter apparatus of claim 1 wherein, The outer casing assembly has a sewage discharge hole that communicates with the sewage area; The high-pressure backwashing filter device also includes: A drain valve is installed on the housing assembly and has a drain channel that can connect to the sewage discharge hole. The drain valve is driven by hydraulic oil to make the drain channel connect or disconnect from the sewage discharge hole. The oil inlet on the oil control pipeline connecting the drain valve is connected in parallel with the oil inlet on the drive component, or the oil inlet on the oil control pipeline connecting the drain valve is connected in parallel with the oil inlet on the water pump.

10. A sewage treatment apparatus characterised in that, Includes the high-pressure backwashing filter device as described in any one of claims 1 to 9.

Images