Self-cleaning filter, pipeline system and liquid cooling device

Abstract

The utility model relates to the technical field of filtering devices, in particular to a self-cleaning filter, a pipeline system and a liquid cooling device. A cup-shaped filter screen of the self-cleaning filter is positioned in the accommodating cavity, and an opening of the cup-shaped filter screen is butted and matched with the liquid outlet pipe; the multiple first disturbance pieces are freely arranged in the containing cavity and located outside the cup-shaped filter screen; the stirring mechanism is configured to stir the liquid in the containing cavity. According to the self-cleaning filter, through the synergistic effect of liquid flow disturbance, multi-point cleaning contact and deposition separation, the purpose of automatically cleaning the filter without manual disassembly and washing is achieved, and when the self-cleaning filter is applied to a liquid cooling device, the operation stability and maintenance convenience of a liquid cooling system and circulating filtration equipment can be greatly improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of filtering devices, in particular to a self-cleaning filter, a pipeline system and a liquid cooling device. BACKGROUND

[0002] The working medium used by the liquid cooling system of the liquid cooling device is high-concentration ethylene glycol. Since flocculation will occur in the ethylene glycol solution during use and the flocculation will increase, and the cooling flow channel of the cooling equipment is relatively narrow, the slight impurities in the liquid cooling system can block the cooling flow channel.

[0003] In the related art, a Y-type filter is added before the pump, and a fine filter is added after the pump, and multiple filters or high-mesh screens are used to filter impurities. However, as the flocculation increases, the screen will be frequently blocked, the filter screen will be frequently dirty and blocked, and it is difficult to disassemble and clean, resulting in the need for a large amount of manpower. Practical new type content

[0004] In order to solve the above technical problems, the present application provides a self-cleaning filter, a pipeline system and a liquid cooling device.

[0005] According to a first aspect of the present application, the embodiments of the present application provide a self-cleaning filter, comprising:

[0006] A housing is formed with an accommodation cavity inside, the bottom end of the housing is provided with a dirt collecting piece, the internal space of the dirt collecting piece is in communication with the accommodation cavity, and a first filter plate is arranged between the accommodation cavity and the dirt collecting piece;

[0007] A liquid inlet pipe and a liquid outlet pipe are connected to the side wall of the housing and are in communication with the accommodation cavity, and a second filter plate is arranged in the liquid inlet pipe;

[0008] A cup-shaped filter screen is located in the accommodation cavity and its opening is in butt joint with the liquid outlet pipe;

[0009] A plurality of first disturbance pieces are freely arranged in the accommodation cavity and located outside the cup-shaped filter screen, and the first filter plate and the second filter plate are used to block the first disturbance pieces;

[0010] A stirring mechanism is configured to stir the liquid in the accommodation cavity.

[0011] Further, the first disturbance piece comprises a main body and a plurality of protrusions arranged on the surface of the main body.

[0012] Further, the main body is a rubber ball, and the protrusions are in the shape of a cylinder.

[0013] Further, the stirring mechanism comprises a driving member, a driving shaft and an impeller, the driving member is arranged on the top of the shell, and the impeller is arranged in the accommodating cavity and below the cup-shaped filter screen.

[0014] Further, a third filter plate is arranged in the liquid outlet pipe and opposite the opening of the cup-shaped filter screen, and a second disturbing member is arranged in the cup-shaped filter screen, and the third filter plate is used for blocking the second disturbing member.

[0015] Further, the pollution collecting member comprises a pollution discharging pipe communicated with the accommodating cavity and a cup-shaped plug connected to the pollution discharging pipe, and the first filter plate is arranged in the pollution discharging pipe.

[0016] According to the second aspect of the present application, a pipeline system is further provided, which comprises a first pipeline, a second pipeline, a pump and the self-cleaning filter provided in the first aspect of the present application, the first pipeline is communicated with the liquid inlet pipe, the second pipeline is communicated with the liquid outlet pipe, and the pump is arranged in series on the second pipeline.

[0017] Further, a first sensor for detecting the liquid inlet pressure of the self-cleaning filter is arranged on the first pipeline, and a second sensor for detecting the liquid outlet pressure of the self-cleaning filter is arranged on the second pipeline.

[0018] Further, a first valve is arranged on the first pipeline, and a second valve is arranged on the second pipeline.

[0019] According to the third aspect of the present application, a liquid cooling device is further provided, which comprises the self-cleaning filter provided in the first aspect of the present application or the pipeline system provided in the second aspect of the present application.

[0020] The self-cleaning filter provided by the application is used in actual use. Liquid working medium enters the containing cavity through the liquid inlet pipe, is filtered by the cup-shaped filter screen, and is then discharged through the liquid outlet pipe. Impurities or flocculation in the working medium are intercepted by the cup-shaped filter screen, and are left in the containing cavity, are hung on the inner wall of the shell, that is, the wall of the containing cavity, and are hung on the outer wall of the cup-shaped filter screen. Under the driving of the turbulent flow formed by the liquid flow, the plurality of first disturbance members move in the containing cavity with the fluid, constantly collide with and slide on the outer wall of the filter screen and the inner wall of the shell, and clean the adhering impurities or flocculation. The peeled-off impurities slowly settle with the liquid, enter the dirt collecting member through the first filter plate, and finally enter the dirt collecting member. To prevent the first disturbance members from leaving the containing cavity, the second filter plate prevents the first disturbance members from entering the liquid inlet pipe, and the first filter plate prevents the first disturbance members from entering the dirt collecting member, so that the first disturbance members are always limited in the effective disturbance area for circulation. Through the synergistic effect of liquid flow disturbance, multi-point cleaning contact and deposition separation, the self-cleaning filter realizes the purpose of automatic cleaning of the filter without manual disassembly and washing. When the self-cleaning filter is applied to a liquid cooling device, the operation stability and maintenance convenience of the liquid cooling system and the circulating filtration equipment can be greatly improved. BRIEF DESCRIPTION OF DRAWINGS

[0021] The accompanying drawings, which form a part of this application, are used to provide further understanding of the application, so that the other features, purposes and advantages of the application become more apparent. The illustrative embodiment drawings of the application and their descriptions are used to explain the application, and do not constitute an improper limitation on the application. In the drawings:

[0022] Figure 1 The internal structure of the self-cleaning filter provided by the embodiment of the application is schematically shown Figure 1 ;

[0023] Figure 2 The internal structure of the self-cleaning filter provided by the embodiment of the application is schematically shown Figure 2 ;

[0024] Figure 3 The internal structure of the self-cleaning filter provided by the embodiment of the application is schematically shown

[0025] Figure 4 The structure diagram of the pipeline system provided by the embodiment of the application is schematically shown.

[0026] In the drawings:

[0027] 100, self-cleaning filter;

[0028] 110, shell; 111, containing cavity;

[0029] 120, liquid inlet pipe;

[0030] 130, liquid outlet pipe;

[0031] 140. cup-shaped filter;

[0032] 150. first disturbing member; 151. main body; 152. protrusion;

[0033] 160. stirring mechanism; 161. driving member; 162. driving shaft; 163. impeller;

[0034] 170. dirt collecting member; 171. dirt discharging pipe; 172. cup-shaped plug;

[0035] 181. first filter plate; 182. second filter plate; 183. third filter plate;

[0036] 190. second disturbing member;

[0037] 200. first pipeline;

[0038] 300. second pipeline;

[0039] 400. pump;

[0040] 500. first sensor;

[0041] 600. second sensor;

[0042] 700. first valve;

[0043] 800. second valve;

[0044] 900. electric control box. DETAILED DESCRIPTION

[0045] In order to make the personnel in the art better understand the scheme of the present application, the technical scheme in the embodiments of the present application will be clearly and completely described below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by the person of ordinary skill in the art without making any creative effort should fall within the protection scope of the present application.

[0046] It should be noted that the terms “include” and “have” and any variations thereof in the specification and claims of the present application and the above-mentioned drawings are intended to cover the inclusion not the exclusion, for example, a system, product or device including a series of units does not have to be limited to those units clearly listed, but can include those units not clearly listed or inherent to these products or devices.

[0047] In this application, the terms "upper," "lower," "inner," "middle," and "outer," etc., 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 this application 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.

[0048] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0049] Furthermore, the terms "set up," "connect," and "fix" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0050] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0051] This application provides a self-cleaning filter 100, such as... Figure 1 and 2 As shown, the self-cleaning filter 100 mainly includes a housing 110, an inlet pipe 120, an outlet pipe 130, a cup-shaped filter 140, a first agitator 150, and a stirring mechanism 160. The self-cleaning filter 100 structure provided in this embodiment can be applied to pipelines that require the separation of impurities or flocs in liquid working fluids, such as liquid raw material pipelines in process equipment, water treatment pipelines, and working fluid circulation systems of equipment under various temperature conditions, and is particularly suitable for working fluid pipelines in liquid cooling devices.

[0052] The self-cleaning filter 100 comprises a housing 110, a first filter plate 181, a second filter plate 182, a plurality of first disturbing members 150, a stirring mechanism 160, and a collecting member 170. The housing 110 has a containing cavity 111 formed therein. The bottom end of the housing 110 is provided with the collecting member 170. The interior space of the collecting member 170 is in communication with the containing cavity 111. The containing cavity 111 and the collecting member 170 are provided with the first filter plate 181 therebetween. An inlet pipe 120 and an outlet pipe 130 are connected to the side wall of the housing 110 and are in communication with the containing cavity 111. The inlet pipe 120 is provided with the second filter plate 182. A cup-shaped filter screen is located in the containing cavity 111 and its opening is in abutting cooperation with the outlet pipe 130. The first disturbing members 150 are freely arranged in the containing cavity 111 and are located outside the cup-shaped filter screen. The first filter plate 181 and the second filter plate 182 are used to block the first disturbing members 150. The stirring mechanism 160 is configured to stir the liquid in the containing cavity 111.

[0053] The hollow accommodating cavity 111 is arranged inside the shell 110 and is used to accommodate liquid working medium and internal elements. The bottom of the shell 110 is provided with a dirt collecting element 170 for collecting the impurities and flocs that have settled down. The liquid inlet pipe 120 is used to guide the liquid working medium into the accommodating cavity 111, and the liquid outlet pipe 130 is used to discharge the filtered liquid. The second filter plate 182 is arranged in the liquid inlet pipe 120 and is used to block the first disturbing element 150 in the accommodating cavity 111 from entering the liquid inlet pipe 120. The second filter plate 182 is a strip-shaped or mesh-shaped filter plate with a through-hole structure, and the size of the filter holes is smaller than the minimum outer diameter of the first disturbing element 150, thereby forming an effective blockage. The cup-shaped filter screen is arranged in the accommodating cavity 111, and the opening thereof faces the liquid outlet pipe 130 and cooperates with the liquid outlet pipe 130, and is used to perform fine filtration on the impurities or flocs in the working medium. The cup-shaped filter screen is provided with a hole structure for filtration, and the filter hole diameter of the cup-shaped filter screen can be selected according to the filtration requirements, for example, the mesh number can be 40-100 meshes. The outer wall of the cup-shaped filter screen is exposed to the main flow path of the liquid working medium in the accommodating cavity 111. The plurality of first disturbing elements 150 (which can be irregular elastic balls, sheet-shaped disturbing elements, floating elements with brush structures, etc.) are freely placed in the accommodating cavity 111 and are located outside the cup-shaped filter screen. The plurality of first disturbing elements 150 move with the liquid during the liquid flow, thereby constantly impacting and scraping the outer wall of the cup-shaped filter screen and the inner wall of the accommodating cavity 111. In this way, the impurities attached to the cup-shaped filter screen or the wall of the shell 110 can be carried away from the surface by the disturbing elements, thereby avoiding the formation of accumulation and blockage. The first filter plate 181 is arranged between the accommodating cavity 111 and the dirt collecting element 170 and is used to block the disturbing elements from entering the dirt collecting element 170. The first filter plate 181 is similar in structure to the second filter plate 182, and the size of the filter holes is smaller than the size of the first disturbing element 150, thereby forming a reliable physical blockage. The stirring mechanism 160 is arranged to open or periodically open and strongly disturb the liquid in the accommodating cavity 111 as needed, thereby enhancing the turbulent flow effect of the liquid and improving the moving efficiency and impact frequency of the first disturbing element 150, which is beneficial to the enhancement of the self-cleaning capability.

[0054] In actual use, the liquid working fluid enters the receiving cavity 111 through the inlet pipe 120. After being filtered by the cup-shaped filter screen, it is discharged through the drain pipe. Impurities or flocs in the working fluid are intercepted by the cup-shaped filter screen and remain in the receiving cavity 111, hanging on the inner wall of the housing 110 (i.e., the wall of the receiving cavity 111), or wrapped around the outer wall of the cup-shaped filter screen. Driven by the turbulence formed by the liquid flow, multiple first disturbance elements 150 move with the fluid in the receiving cavity 111, constantly colliding and rubbing against the outer wall of the filter screen and the inner wall of the housing 110, thereby cleaning the adhesive impurities or flocs. The detached impurities slowly settle with the liquid, and after passing through the first filter plate 181, finally enter the dirt collection element 170. To prevent the first disturbance element 150 from detaching from the receiving cavity 111, the second filter plate 182 prevents it from entering the liquid inlet pipe 120, and the first filter plate 181 prevents it from entering the dirt collection component 170, thereby ensuring that the first disturbance element 150 is always confined to the effective disturbance area for repeated use.

[0055] The self-cleaning filter 100 provided in this embodiment achieves the purpose of automatic cleaning of the filter without manual disassembly and washing through the synergistic effect of liquid flow disturbance, multi-point cleaning contact and sediment separation. When the self-cleaning filter 100 is applied to a liquid cooling device, it can greatly improve the operational stability and maintenance convenience of the liquid cooling system and the circulating filtration equipment.

[0056] In some implementations, such as Figure 3 As shown, the first disturbance member 150 includes a main body 151 and a plurality of protrusions 152 disposed on the surface of the main body 151. The surface protrusions 152 help to increase the contact pressure and friction when the first disturbance member 150 contacts the cup-shaped filter screen or the inner wall of the housing 110, thereby more effectively removing adhering impurities or flocculent matter. Through the arrangement of the protrusions 152, the first disturbance member 150, driven by liquid flow, not only has the ability to impact the filter screen and the housing 110, but also can disturb and remove the adhering matter through various contact methods such as scraping and stirring, further improving the self-cleaning ability of the filter. In addition, the presence of the protrusions 152 can also break the stability of the local flow field and promote the formation of liquid turbulence, thereby improving the cleaning efficiency of the entire receiving cavity 111. During the rotation, tumbling, or drifting of the first disturbance element 150, the numerous protrusions 152 will form complex overlapping trajectories. Their movement paths are more multidirectional and have a wider coverage than those of a smooth sphere or a few protrusions, which helps to improve the comprehensiveness of self-cleaning. In particular, traditional cleaning blind spots such as filter seams and the corners of the housing 110 can also be frequently touched.

[0057] The main body 151 can be spherical, ellipsoidal or irregular geometric shape for free movement in the liquid flow in the containing cavity 111, and a plurality of protrusions 152 arranged on the surface of the main body 151 can be conical, hemispherical or strip-shaped structure. Preferably, the main body 151 is a rubber ball, and the shape of the protrusions 152 is cylindrical. The rubber ball material has good elasticity and corrosion resistance, can adapt to the relatively complex flow environment in the liquid cooling system, avoid causing wear to the internal structure of the filter, and at the same time has good buffering effect during movement. The cylindrical protrusions 152 are uniformly distributed on the surface of the rubber ball, can continuously contact the outer wall of the cup-shaped filter screen and the inner wall of the shell 110 during the liquid flow, and use the local contact force and friction of the protrusions 152 to effectively scrape off the impurities or flocculation attached to the surface of the filter screen and the inner wall, thereby improving the self-cleaning ability and prolonging the service life of the filter.

[0058] Designing the protrusions 152 on the surface of the first disturbance member 150 as cylindrical shape can enhance the disturbance effect and form local high-frequency vortex flow. Specifically, the cylindrical protrusions 152 can cause significant Karman vortex street effect in the liquid flow, and small-scale vortex flow structure is formed at the tail of the protrusions 152. These vortex flows can reduce the tendency of impurities to adhere to the cup-shaped filter screen and the inner wall of the shell 110, and make the flocculation more easily peeled off. Compared with spherical or conical protrusions 152, the “disturbance wake” of the cylindrical protrusions 152 in the fluid is more intense, which helps to increase the liquid disturbance frequency and improve the cleaning effect. Compared with other special-shaped protrusions 152 (such as conical or spike-shaped), the cylindrical protrusions 152 are less likely to be stuck in the mesh of the cup-shaped filter screen, thereby reducing the risk of damage to the cup-shaped filter screen.

[0059] In some embodiments, the stirring mechanism 160 includes a driving member 161, a driving shaft 162 and an impeller 163. The driving member 161 is arranged on the top of the shell 110, and the impeller 163 is located in the containing cavity 111 and below the cup-shaped filter screen. Specifically, the driving member 161 is arranged on the top of the shell 110, the driving shaft 162 is arranged through the top of the shell 110 and extends into the containing cavity 111, and the impeller 163 is mounted at the end of the driving shaft 162 and arranged below the cup-shaped filter screen. This arrangement enables the impeller 163 to perform stirring operation in the lower space of the containing cavity 111. Considering that the plurality of first disturbance members 150 are prone to sink to the lower area of the containing cavity 111 due to their own gravity during the liquid flow, arranging the impeller 163 below the cup-shaped filter screen helps to directly generate disturbance force on the first disturbance members 150 located at the bottom, so as to promote the first disturbance members 150 to constantly roll, swim and impact the inner wall of the containing cavity 111 and the outer surface of the cup-shaped filter screen, thereby enhancing the self-cleaning effect.

[0060] The impeller 163 not only forms a wide range of circulating disturbance to the working medium during rotation, but also forms local turbulence in its vortex wake, which pushes the disturbing member to move irregularly in the containing cavity 111, effectively breaking the phenomenon of the disturbing member being stacked and immobile at the bottom, avoiding cleaning dead angles. In addition, since the impeller 163 is located below the cup-shaped filter screen, it can also produce fluid disturbance to the area above the dirt collecting member 170 to some extent, so as to make the detached impurities contact the channel of the dirt collecting member 170 at a higher frequency and increase the possibility of entering the dirt collecting member 170.

[0061] In some embodiments, a third filter plate 183 is arranged opposite the opening of the cup-shaped filter screen in the liquid outlet pipe 130, and a second disturbing member 190 is freely arranged in the cup-shaped filter screen. The third filter plate 183 is used to block the second disturbing member 190, that is, the third filter plate 183 is arranged to block the second disturbing member 190 from leaving the liquid outlet pipe 130, so as to ensure the stability and safety of the system operation.

[0062] During the operation of the self-cleaning filter 100, the liquid working medium flows into the containing cavity 111 through the liquid inlet pipe 120, is filtered by the cup-shaped filter screen, and is then discharged from the liquid outlet pipe 130. Impurities or flocculation are mainly blocked outside the cup-shaped filter screen. Since the cup-shaped filter screen itself is a static structure, impurities are easily attached to its outer wall to form a blockage. At this time, the second disturbing member 190 moves freely inside the cup-shaped filter screen under the action of the liquid flow, constantly impacts the inner wall of the cup-shaped filter screen, and thus produces a slight vibration to the cup-shaped filter screen, effectively loosening the flocculation or particulate impurities attached to the outer wall. At the same time, the first disturbing member 150 outside constantly scours the outer wall of the filter screen, effectively pushing the loosened impurities from the cup-shaped filter screen to the containing cavity 111. Through this "internal and external cooperative" self-cleaning mechanism, the second disturbing member 190 actively disturbs the cup-shaped filter screen on the inner wall, promotes the loosening of external impurities and facilitates their detachment, and the combined action of the first disturbing member 150 and the second disturbing member 190 significantly improves the self-cleaning efficiency of the filter as a whole, delays the filter screen blockage time, reduces the frequency of manual maintenance, and is particularly suitable for liquid scenarios containing flocculation impurities or adhesion impurities, such as the use of high-concentration ethylene glycol working medium in a liquid cooling system.

[0063] In some embodiments, the dirt collecting member 170 includes a dirt outlet pipe 171 in communication with the containing cavity 111 and a cup-shaped plug 172 connected to the dirt outlet pipe 171, and the first filter plate 181 is arranged in the dirt outlet pipe 171. The cup-shaped plug 172 has a containing cavity inside for collecting impurities. During the operation of the self-cleaning filter 100, impurities and flocculation in the liquid working medium gradually settle at the bottom of the containing cavity 111 under the action of disturbance and gravity, fall into the dirt outlet pipe 171 through the first filter plate 181, and finally collect in the containing cavity of the cup-shaped plug 172. When cleaning is needed, the user can unscrew the cup-shaped plug 172, without disassembling the entire filter structure, and directly pour out the impurities in the cup-shaped plug 172 to complete the dirt removal operation. This design not only allows impurities to be concentrated and collected for easy cleaning, but also simplifies the maintenance process and significantly improves the practicality of the filter.

[0064] The application also provides a pipeline system, as shown in the drawings, which specifically includes a first pipeline 200, a second pipeline 300, a pump 400, and the self-cleaning filter 100 provided by the aforementioned embodiments of the application. The first pipeline 200 is in communication with the liquid inlet pipe 120, the second pipeline 300 is in communication with the liquid outlet pipe 130, and the pump 400 is arranged in series on the second pipeline 300. Figure 4 The first pipeline 200 is in communication with the liquid inlet pipe 120 of the self-cleaning filter 100 and is used to deliver the liquid working medium into the containing cavity 111 of the filter; the second pipeline 300 is in communication with the liquid outlet pipe 130 of the filter and is used to deliver the filtered liquid working medium to subsequent equipment; and the pump 400 is arranged in series in the second pipeline 300 and is used to provide fluid delivery power for the entire system.

[0065] By arranging the self-cleaning filter 100 at the front end of the pump 400, impurities and flocculation in the liquid working medium can be effectively filtered before the pump 400 is operated, preventing impurities from entering the pump 400 and subsequent load equipment and causing blockage or wear. In combination with the self-cleaning function of the self-cleaning filter 100, the maintenance frequency can be significantly reduced, and the continuity and reliability of system operation can be improved. The pipeline system is particularly suitable for liquid cooling equipment, circulating cooling systems, water treatment devices, and other scenarios with high requirements for liquid cleanliness.

[0066] The connection mode between the first pipeline 200 and the liquid inlet pipe 120, and the connection mode between the second pipeline 300 and the liquid outlet pipe 130, can be threaded connection or flange connection. By adopting threaded connection, quick disassembly and assembly can be achieved, facilitating maintenance and replacement; flange connection is suitable for high-pressure or large-diameter scenarios, and the connection is more stable and has better sealing performance. According to specific use requirements, the connection mode can be flexibly selected to improve the adaptability and installation convenience of the system.

[0067] In some embodiments, the first pipeline 200 is provided with a first sensor 500 for detecting the inlet pressure of the self-cleaning filter 100, and the second pipeline 300 is provided with a second sensor 600 for detecting the outlet pressure of the self-cleaning filter 100. Preferably, the first sensor 500 is located within 200 mm from the port of the inlet pipe 120, and the second sensor 600 is located within 200 mm from the port of the outlet pipe 130. The pressure difference between the inlet and outlet can be obtained by the first sensor 500 and the second sensor 600 to determine the degree of blockage of the self-cleaning filter 100, which serves as a basis for determining whether to start the stirring mechanism 160.

[0068] Through the above arrangement, the pressure data of the inlet and outlet of the self-cleaning filter 100 can be accurately obtained, and the pressure difference between the two ends of the self-cleaning filter 100 can be calculated. The pressure difference can be used as an important basis for determining the degree of blockage of the filter. When the pressure difference exceeds a predetermined threshold, it can be used to trigger the start command of the stirring mechanism 160, so that the stirring mechanism 160 works to drive the liquid to disturb the first disturbing member 150, thereby assisting in cleaning the impurities on the inner wall of the filter housing 110 and the outer wall of the cup-shaped filter screen, thereby improving the self-cleaning efficiency of the filter and the operation stability of the system.

[0069] In some embodiments, the first pipeline 200 is provided with a first valve 700, and the second pipeline 300 is provided with a second valve 800. The first valve 700 and the second valve 800 can be used to adjust the flow of the inlet and outlet pipes 130, to ensure the stable flow of the liquid through the self-cleaning filter 100, and when the filter needs to be maintained, cleaned or replaced, the two valves can be closed to cut off the pipeline to avoid unnecessary liquid leakage. Preferably, the first valve 700 and the second valve 800 are gate valves. The advantage of using a gate valve is that it has good sealing performance and durability, and can effectively control the opening and closing of the liquid flow.

[0070] The embodiments of the present application also provide a cleaning method for a filter, which is implemented by the pipeline system provided by the foregoing embodiments of the present application. In order to cooperate with the implementation of the cleaning method, a specific control unit can be integrated into an electric control box 900. When the pipeline system is used in a refrigeration device, the electric control box 900 can also integrate the control of the air conditioning refrigeration / heat circulation system and the cooling working medium system.

[0071] The cleaning method mainly includes the following steps:

[0072] Obtaining the inlet pressure P1 and the outlet pressure P2 of the self-cleaning filter 100, and the difference between P1 and P2 is the inlet and outlet pressure difference ΔP;

[0073] If the inlet-outlet pressure difference ΔP is greater than the first preset pressure difference, or the inlet-outlet pressure difference ΔP is 0 and the pump 400 is in a shutdown state, the stirring mechanism 160 is controlled to start to agitate the liquid in the containing cavity 111, and the first disturbance member 150 is used to flush the cup-shaped filter screen and the inner wall of the shell 110. The inlet liquid pressure P1 is measured by the first sensor 500, and the outlet liquid pressure P2 is measured by the second sensor 600. The first preset pressure difference can be specifically set according to requirements, for example, can be 20 kPa.

[0074] In the above embodiment, according to the measured inlet-outlet pressure difference ΔP, it is judged whether the stirring mechanism 160 needs to be started for auxiliary cleaning operation: if the inlet-outlet pressure difference ΔP is greater than the first preset pressure difference (for example, 20 kPa), it indicates that there is a certain blockage or flow obstruction in the self-cleaning filter 100, and the stirring mechanism 160 needs to be started for auxiliary enhanced cleaning. If the inlet-outlet pressure difference ΔP is 0 and the pump 400 is in a shutdown state, it means that the system is in a shutdown state, at this time, the stirring mechanism 160 is triggered to further agitate and deposit impurities into the dirt collecting member 170 at the bottom of the shell 110, and the cleaning operation is completed. Once it is judged that the cleaning condition is met, the control unit controls the stirring mechanism 160 to start, and the stirring mechanism 160 agitates the liquid in the containing cavity 111. Through stirring, the first disturbance member 150 flushes the cup-shaped filter screen and the inner wall of the shell 110, and removes the impurities and flocculation attached to the outer wall of the cup-shaped filter screen and the inner wall of the shell 110. Under the action of stirring and disturbance, the impurities and flocculation are flushed down, and finally deposited at the bottom of the containing cavity 111 and collected to the dirt collecting member 170 to be discharged from the system. This cleaning process can effectively keep the self-cleaning filter 100 unobstructed and prolong the service life of the filter.

[0075] The control unit of the method can automatically judge the cleaning time according to the real-time monitored pressure difference, and adjust the working state of the stirring mechanism 160, to ensure that the system can automatically clean when needed, thereby avoiding human intervention. In addition, the control system integrated in the electric control box 900 can also intelligently start or stop the cleaning operation according to the state of the liquid cooling device, to improve the automation and efficiency of the equipment. The self-cleaning process can be completed during operation, to continuously maintain the efficient work of the final equipment to which the pipeline system is applied, and effectively reduce the system failure and maintenance cost caused by self-cleaning blockage.

[0076] In some embodiments, if the inlet-outlet pressure difference ΔP is greater than or equal to a second preset pressure difference, which is greater than the first preset pressure difference, the pump 400, the first pipeline 200 and the second pipeline 300 are closed, the inside of the containing cavity 111 and the first disturbing member 150 are manually cleaned, the second pipeline 300 is opened after the manual cleaning is completed, the cup-shaped filter screen is back-flushed by the liquid stored in the second pipeline 300, and the stirring mechanism 160 is started. The first pipeline 200 is closed by the first valve 700, and the second pipeline 300 is closed by the second valve 800. This cleaning method can ensure that when the self-cleaning filter 100 is seriously blocked, thorough cleaning and maintenance are performed, the service life of the equipment is prolonged, and the working efficiency of the system is improved.

[0077] Specifically, when the inlet-outlet pressure difference ΔP is greater than or equal to the second preset pressure difference, the control unit can alarm to prompt the maintenance personnel to manually clean. The second preset pressure difference can be specifically set according to the needs, for example, can be 100 kPa.

[0078] In this case, the specific cleaning process can be specifically described as follows.

[0079] Step (1), the pump 400 is closed, and the first valve 700 and the second valve 800 are closed;

[0080] Step (2), the pollution collector 170 at the bottom of the self-cleaning filter 100 is removed, and the impurities accumulated in the pollution collector 170 are cleaned;

[0081] Step (3), the first filter plate 181 at the bottom of the shell 110 is removed, the first disturbing member is taken out and the impurities adhered and wound thereon are cleaned, and if the cleaning is not clean, a new first disturbing member is replaced;

[0082] Step (4), the cleaned or new first disturbing member is reloaded into the containing cavity 111, and the first filter plate 181 and the pollution collector 170 are installed;

[0083] Step (5), the second valve 800 is opened, the liquid stored in the second pipeline 300 is back-flushed to back-flush the cup-shaped filter screen, and the stirring mechanism 160 is started at the same time, the liquid in the containing cavity 111 and the first disturbing member are stirred, and the back-flushing is continued for 1-2 hours;

[0084] Step (6), the second valve 800 and the stirring mechanism 160 are closed, and steps (2) and (3) are repeated multiple times;

[0085] Step (7), after the state of the pipeline system is restored, the self-cleaning filter 100 is put into use again.

[0086] In some embodiments of the cleaning method, if the inlet-outlet pressure difference ΔP is less than the second preset pressure difference and the inlet-outlet pressure difference ΔP is greater than or equal to a third preset pressure difference, wherein the third preset pressure difference is greater than the first preset pressure difference, the first pipeline 200 is closed, the pump 400 is used to pump out the liquid in the self-cleaning filter 100, and then the pump 400 is quickly closed, the cup-shaped filter screen is back-flushed by the liquid in the second pipeline 300, and the stirring mechanism 160 is started at the same time. The third preset pressure difference can be specifically set according to requirements, for example, it can be 80 kPa. The duration of the water pump 400 pumping water depends on the distance between the pump 400 and the self-cleaning filter 100, and generally 3-5 s is enough.

[0087] In the embodiment, the first pipeline 200 is closed to prevent liquid from entering the self-cleaning filter 100 from the inlet pipe 120, the liquid in the self-cleaning filter 100 is pumped out, and then the pump 400 is quickly closed to ensure that the liquid no longer flows, the cup-shaped filter screen is back-flushed by the liquid accumulated in the second pipeline 300, and the stirring mechanism 160 is started at the same time, thereby further enhancing the cleaning effect. The cleaning method is suitable for relatively heavy blockage that can avoid manual cleaning by disassembling the self-cleaning device, can quickly and effectively clean, prolong the service life of the self-cleaning filter 100, and maintain the efficient operation of the system.

[0088] When the above steps are performed, if the inlet-outlet pressure difference ΔP is still greater than or equal to the third preset pressure difference, the above embodiment is not performed again until the next manual cleaning by the maintenance personnel.

[0089] When the above steps are performed, if the inlet-outlet pressure difference ΔP is still greater than or equal to the third preset pressure difference, but the decrease is less than 20%-30%, the back-flushing is repeated. Specifically, on the basis of the above embodiment, after the pump 400 is stopped for 20-30 s, the process of the above embodiment is repeated again, that is, the pump 400 is started to pump out the liquid in the self-cleaning filter 100, the cup-shaped filter screen is back-flushed by the liquid in the second pipeline 300 in reverse flow again, and the basic structure is started at the same time. After repeating 2-3 times, the first valve 700 on the first pipeline 200 is opened, and the pipeline system is put into normal use. When the improvement effect is still not obvious after the repeated back-flushing, the back-flushing is not performed again, and the maintenance personnel performs manual cleaning.

[0090] The embodiments of the present application also correspondingly protect a liquid cooling device, which comprises the self-cleaning filter 100 or the pipeline system provided by the aforementioned embodiments of the present application. The application of the liquid cooling device is mainly aimed at equipment or systems that need liquid circulation cooling, such as high-performance computers, industrial equipment or other thermal management systems. By integrating the self-cleaning filter 100 or the pipeline system into the liquid cooling device, impurities or flocculation in the working medium can be effectively removed, avoiding the blockage of the cooling flow channel or the load equipment, thereby improving the operating efficiency and stability of the system. The introduction of the self-cleaning filter 100 not only reduces the labor cost of frequent disassembly and cleaning of the filter, but also ensures the efficient operation of the liquid cooling device in the long-term use. Through the pressure sensor and valve control, the liquid cooling device can intelligently start the self-cleaning function according to the real-time monitored pressure difference change, ensuring the smoothness of the liquid circulation system. In addition, combined with the design of the stirring mechanism 160 and the disturbing piece, the self-cleaning filter 100 can effectively remove the deposited impurities during the operation of the liquid cooling system, thereby prolonging the service life of the liquid cooling device and reducing the maintenance requirements.

[0091] Some embodiments in the specification are described in a progressive or parallel manner, and each embodiment focuses on the difference from other embodiments. The same or similar parts between various embodiments can be referred to each other.

[0092] The above is only a specific embodiment of the present application, which enables those skilled in the art to understand or implement the present application. Various modifications of these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features applied herein.

Claims

1. A self-cleaning filter, characterized by, The self-cleaning filter comprises: a housing, in which a containing cavity is formed, a bottom end of the housing is provided with a dirt collecting member, an inner space of the dirt collecting member is communicated with the containing cavity, and a first filter plate is arranged between the containing cavity and the dirt collecting member; a liquid inlet pipe and a liquid outlet pipe are respectively connected to a side wall of the housing and communicated with the containing cavity, and a second filter plate is arranged in the liquid inlet pipe; a cup-shaped filter screen is located in the containing cavity and an opening thereof is in abutting fit with the liquid outlet pipe; a plurality of first disturbing members are freely arranged in the containing cavity and located outside the cup-shaped filter screen, and the first filter plate and the second filter plate are used to block the first disturbing members; a stirring mechanism is configured to stir liquid in the containing cavity.

2. The self-cleaning filter of claim 1, wherein, The first disturbing member comprises a main body and a plurality of protrusions arranged on a surface of the main body.

3. The self-cleaning filter of claim 2, wherein, The main body is a rubber ball, and the protrusions are in a cylindrical shape.

4. The self-cleaning filter of claim 1, wherein, The stirring mechanism comprises a driving member, a driving shaft and an impeller, the driving member is arranged on a top of the housing, and the impeller is located in the containing cavity and below the cup-shaped filter screen.

5. The self-cleaning filter of claim 1, wherein, A third filter plate is arranged in the liquid outlet pipe opposite the opening of the cup-shaped filter screen, a second disturbing member is freely arranged in the cup-shaped filter screen, and the third filter plate is used to block the second disturbing member.

6. The self-cleaning filter of claim 1, wherein, The dirt collecting member comprises a dirt discharging pipe communicated with the containing cavity and a cup-shaped plug connected to the dirt discharging pipe, and the first filter plate is arranged in the dirt discharging pipe.

7. A piping system, characterized by The pipeline system comprises a first pipeline, a second pipeline, a pump and the self-cleaning filter according to any one of claims 1-6, the first pipeline is communicated with the liquid inlet pipe, the second pipeline is communicated with the liquid outlet pipe, and the pump is arranged in series on the second pipeline.

8. The plumbing system of claim 7, wherein, A first sensor for detecting liquid inlet pressure of the self-cleaning filter is arranged on the first pipeline, and a second sensor for detecting liquid outlet pressure of the self-cleaning filter is arranged on the second pipeline.

9. The plumbing system of claim 7, wherein, A first valve is arranged on the first pipeline, and a second valve is arranged on the second pipeline.

10. A liquid cooling device, characterized by, The pipeline system comprises the self-cleaning filter according to any one of claims 1-6 or the pipeline system according to any one of claims 7-9.

Images