Intelligent filtering device and liquid cooling system

Abstract

The utility model discloses an intelligent filtering device and a liquid cooling system. The device comprises a main pipeline, a bypass pipeline, a first electric valve and a filtering assembly, two ends of the main pipeline are respectively communicated with two ends of the bypass pipeline; the first electric valve is arranged on the main pipeline; the filtering assembly is arranged on the bypass pipeline; the first electric valve is used for being in communication connection with a PLC in the liquid cooling system so as to adjust the flow of a refrigerant flowing through the outlet end of the main pipeline according to an opening degree control signal sent by the PLC. The filtering assembly is used for filtering particulate impurities, colored substances and water in the refrigerant flowing through the bypass pipeline; the filtering assembly is further used for being in communication connection with the PLC so that whether a filter element in the filtering assembly is blocked or not can be detected through the PLC. According to the utility model, the opening degree of the first electric valve on the main pipeline is controlled, so that a refrigerant flows through the filter component on the bypass pipeline to be filtered, impurities in the refrigerant are removed, colored substances are adsorbed, water is removed, and the cleanness of the refrigerant is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of filtration, in particular to an intelligent filtration device and a liquid cooling system. Background Art

[0002] Liquid-cooled servers are gaining increasing attention as a highly efficient, energy-saving, and environmentally friendly heat dissipation solution. Immersion liquid cooling completely submerges the server in a refrigerant, relying on the circulation of liquid to remove heat. When the refrigerant runs for extended periods in a liquid cooling system, it inevitably comes into contact with air during operation and maintenance, potentially causing oxidation and discoloration. Furthermore, the intrusion of water vapor increases the refrigerant's moisture content, which in turn reduces its dielectric strength and impacts the server's operational safety. Consequently, the refrigerant in liquid cooling systems is subject to impurities, discoloration, and increased moisture content. Consequently, refrigerant filtration in liquid cooling systems is becoming increasingly important. In addition to filtering impurities from the refrigerant, discoloration must be addressed, and any moisture intrusion into the refrigerant must be filtered. Utility Model Content

[0003] The purpose of the present invention is to address the defects and shortcomings of the existing technology. The present invention provides an intelligent filtering device and a liquid cooling system, which can remove impurities from the refrigerant, adsorb colored substances and remove water.

[0004] In the first aspect, the utility model proposes an intelligent filtering device, which is applied to a liquid cooling system, comprising: a main line, a bypass line, a first electric valve and a filter assembly; the two ends of the main line are respectively connected to the two ends of the bypass line; the first electric valve is arranged on the main line; the filter assembly is arranged on the bypass line; wherein, the first electric valve is used to communicate and connect with the PLC controller in the liquid cooling system to adjust the refrigerant flow rate flowing through the outlet end of the main line according to the opening control signal sent by the PLC controller; the filter assembly is used to filter particulate impurities, colored substances and moisture in the refrigerant flowing through the bypass line; the filter assembly is also used to communicate and connect with the PLC controller to detect whether the filter element in the filter assembly is blocked through the PLC controller.

[0005] Furthermore, the filter assembly includes a first filter, a second filter and a third filter; one end of the first filter is connected to the inlet end of the bypass pipe, the other end of the first filter is connected to one end of the second filter, the other end of the second filter is connected to one end of the third filter, and the other end of the third filter is connected to the outlet end of the bypass pipe; wherein, the first filter is used to filter particulate impurities in the refrigerant flowing through the bypass pipe; the second filter is used to filter colored substances in the refrigerant flowing through the bypass pipe; the third filter is used to filter moisture in the refrigerant flowing through the bypass pipe; the first filter, the second filter and the third filter are also used to communicate with the PLC controller to detect whether the first filter, the second filter and the third filter are blocked through the PLC controller.

[0006] Furthermore, the first filter includes a first housing, a first filter element, a first pipe and a first pressure sensor; the interior of the first housing is connected to the inlet end of the bypass line; the first filter element is arranged inside the first housing, and the first filter element is connected to the second filter through the first pipe running through the first housing; the first pressure sensor is arranged on the top of the first housing, and the first pressure sensor is used to collect the pressure inside the first housing and transmit it to the PLC controller, so that the PLC controller can detect whether the first filter element is blocked according to the pressure inside the first housing.

[0007] Furthermore, the second filter includes a second housing, a second filter element, a second pipe and a second pressure sensor; the interior of the second housing is connected to the first pipe; the second filter element is arranged inside the second housing, and the second filter element is connected to the third filter through the second pipe running through the second housing; the second pressure sensor is arranged on the top of the second housing, and the second pressure sensor is used to collect the pressure inside the second housing and transmit it to the PLC controller, so that the PLC controller can detect whether the second filter element is blocked according to the pressure inside the second housing.

[0008] Furthermore, the third filter includes a third housing, a third filter element, a third pipe and a third pressure sensor; the interior of the third housing is connected to the second pipe; the third filter element is arranged inside the third housing, and the third filter element is connected to the outlet end of the bypass line through the third pipe running through the third housing; the third pressure sensor is arranged on the top of the third housing, and the third pressure sensor is used to collect the pressure inside the third housing and transmit it to the PLC controller, so that the PLC controller can detect whether the third filter element is blocked according to the pressure inside the third housing.

[0009] Furthermore, the filter assembly also includes a first drain pipe, a second drain pipe, a third drain pipe, a second electric valve, a third electric valve, a fourth electric valve and a drain main pipe; one end of the first drain pipe is connected to the bottom of the first filter, the other end of the first drain pipe is connected to one end of the second electric valve, and the other end of the second electric valve is connected to the drain main pipe; one end of the second drain pipe is connected to the bottom of the second filter, the other end of the second drain pipe is connected to one end of the third electric valve, and the other end of the third electric valve is connected to the drain main pipe; one end of the third drain pipe is connected to the bottom of the third filter, the other end of the third drain pipe is connected to one end of the fourth electric valve, and the other end of the fourth electric valve is connected to the drain main pipe; wherein, the second electric valve, the third electric valve and the fourth electric valve are used to communicate with the PLC controller.

[0010] Furthermore, the filter assembly also includes a laser detection module; the laser detection module is used to detect whether there is a preset amount of water inside the third sewage pipe.

[0011] Furthermore, the laser detection module includes a laser transmitter, a first laser receiver and a second laser receiver; the laser transmitter is arranged on one side of the third sewage pipe; the first laser receiver and the second laser receiver are arranged on the other side of the third sewage pipe.

[0012] Furthermore, the intelligent filtering device also includes a first bypass valve and a second bypass valve; the first bypass valve is arranged between the inlet end of the bypass line and the filter assembly; the second bypass valve is arranged between the outlet end of the bypass line and the filter assembly.

[0013] In the second aspect, the utility model also proposes a liquid cooling system, including a PLC controller and an intelligent filtering device as described in the first aspect; the PLC controller is communicatively connected with the first electric valve and the filter assembly in the intelligent filtering device; the PLC controller is used to send an opening control signal to the first electric valve and detect whether the filter element in the filter assembly is blocked.

[0014] Compared with the prior art, the present invention provides an intelligent filtering device and liquid cooling system, which includes a main line, a bypass line, a first electric valve, and a filter assembly. The two ends of the main line are respectively connected to the two ends of the bypass line. The first electric valve is arranged on the main line. The filter assembly is arranged on the bypass line. The first electric valve is used to communicate with the PLC controller in the liquid cooling system to adjust the flow of refrigerant flowing through the outlet end of the main line according to the opening control signal sent by the PLC controller. The filter assembly is used to filter particulate impurities, colored substances, and moisture in the refrigerant flowing through the bypass line. The filter assembly is also used to communicate with the PLC controller to detect whether the filter element in the filter assembly is clogged through the PLC controller. The present invention controls the opening of the first electric valve on the main line, thereby filtering the refrigerant through the filter assembly on the bypass line, removing impurities, adsorbing colored substances, and removing water from the refrigerant, and ensuring the cleanliness of the refrigerant. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 A schematic structural diagram of an intelligent filtering device provided in one embodiment of the present utility model;

[0017] Figure 2 A schematic structural diagram of a filter assembly provided in one embodiment of the present invention;

[0018] Figure 3 This is a structural schematic diagram of the third sewage pipe and laser detection module provided in one embodiment of the present utility model.

[0019] in:

[0020] 1. Main line; 2. Bypass line; 3. First electric valve; 4. Filter assembly; 40. First filter; 400. First housing; 401. First filter element; 402. First pipeline; 403. First pressure sensor; 41. Second filter; 410. Second housing; 411. Second filter element; 412. Second pipeline; 413. Second pressure sensor; 42. Third filter; 420. Third housing; 421. Third filter element; 422. Third pipeline; 423. Third pressure sensor; 43. First sewage pipe; 44. Second sewage pipe; 45. Third sewage pipe; 46. Second electric valve; 47. Third electric valve; 48. Fourth electric valve; 49. Main sewage pipe; 5. Laser detection module; 50. Laser transmitter; 51. First laser receiver; 52. Second laser receiver; 6. Clamp. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] Directional terms used in this disclosure, such as "upper," "lower," "front," "rear," "left," "right," "inner," "outer," and "side," refer only to directions in the accompanying drawings. Therefore, these directional terms are intended to illustrate and facilitate understanding of this disclosure and are not intended to limit this disclosure. Furthermore, in the accompanying drawings, similar or identical structures are denoted by the same reference numerals.

[0023] It will be understood that when used in this specification and the appended claims, the terms “comprises” and “comprising” indicate the presence of described features, integers, steps, operations, elements and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or groups thereof.

[0024] It should also be understood that the terms used in this specification are only for the purpose of describing specific embodiments and are not intended to limit the present invention. As used in this specification and the appended claims, the singular forms "a", "an" and "the" are intended to include plural forms unless the context clearly indicates otherwise.

[0025] It should be further understood that the term “and / or” used in the present specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0026] See also Figures 1 to 3 , Figure 1 A schematic structural diagram of an intelligent filtering device provided in one embodiment of the present utility model; Figure 2 A schematic structural diagram of a filter assembly provided in one embodiment of the present invention; Figure 3 This is a structural schematic diagram of the third sewage pipe and laser detection module provided in one embodiment of the present utility model.

[0027] The utility model provides an intelligent filtering device, which is applied to a liquid cooling system, comprising: a main line 1, a bypass line 2, a first electric valve 3 and a filter assembly 4; the two ends of the main line 1 are respectively connected to the two ends of the bypass line 2; the first electric valve 3 is arranged on the main line 1; the filter assembly 4 is arranged on the bypass line 2; wherein, the first electric valve 3 is used to communicate with the PLC controller in the liquid cooling system to adjust the refrigerant flow rate flowing through the outlet end of the main line 1 according to the opening control signal sent by the PLC controller; the filter assembly 4 is used to filter particulate impurities, colored substances and moisture in the refrigerant flowing through the bypass line 2; the filter assembly 4 is also used to communicate with the PLC controller to detect whether the filter element in the filter assembly 4 is blocked through the PLC controller (not shown).

[0028] In this embodiment, see Figure 1 The intelligent filtering device provided by the present invention includes a main line 1, a bypass line 2, a first electric valve 3, and a filter assembly 4. The two ends of the main line 1 are respectively connected to the two ends of the bypass line 2, that is, the main line 1 and the bypass line 2 are arranged in parallel, the inlet end of the main line 1 is connected to the inlet end of the bypass line 2, and the outlet end of the main line 1 is connected to the outlet end of the bypass line 2. Furthermore, the first electric valve 3 is installed on the main line 1 to regulate the flow of refrigerant flowing through the outlet end of the main line 1 through the first electric valve 3. The filter assembly 4 is installed on the bypass line 2 to filter the refrigerant flowing through the bypass line 2 through the filter assembly 4, thereby filtering out particulate impurities, colored matter, and moisture in the refrigerant.

[0029] In specific implementation, the intelligent filtering device is applied to the liquid cooling system, and the first electric valve 3 is controlled and the filter element in the filter assembly 4 is detected by the PLC controller in the liquid cooling system. Specifically, the refrigerant is oil coolant. When the liquid cooling system is working normally, Figure 1As shown, due to the flow resistance of the filter assembly 4, the refrigerant circulates in the main line 1. When the PLC controller sends an opening control signal to the first electric valve 3 on the main line 1, thereby controlling the first electric valve 3 to close a certain amount, the refrigerant flow rate flowing through the outlet end of the main line 1 is adjusted, so that there is a certain pressure difference between the inlet and outlet ends of the main line 1, so that the refrigerant not only flows through the main line 1, but also flows through the bypass line 2. The filter assembly 4 then filters the particulate impurities, colored substances and water in the refrigerant flowing through the bypass line 2, thereby achieving the refrigerant cleanliness without affecting the operation of the liquid cooling system. Preferably, the PLC controller can be set to send an opening control signal to the first electric valve 3 on the main line 1 at a preset time period, thereby regularly removing impurities, adsorbing colored substances and removing water from the refrigerant, wherein the preset time period is a period when the liquid cooling server in the liquid cooling system has less access, that is, a period when the refrigerant circulation volume required by the main line 1 is less. When the refrigerant flows through the filter assembly 4 of the bypass pipe 2 for filtration, the PLC controller will also detect whether the filter element in the filter assembly 4 is blocked. When the PLC controller detects that the filter element in the filter assembly 4 is blocked, the PLC controller can issue an alarm and relevant personnel will replace the corresponding filter element.

[0030] In a more specific embodiment, the filter assembly 4 includes a first filter 40, a second filter 41 and a third filter 42; one end of the first filter 40 is connected to the inlet end of the bypass line 2, the other end of the first filter 40 is connected to one end of the second filter 41, the other end of the second filter 41 is connected to one end of the third filter 42, and the other end of the third filter 42 is connected to the outlet end of the bypass line 2; wherein, the first filter 40 is used to filter particulate impurities in the refrigerant flowing through the bypass line 2; the second filter 41 is used to filter colored substances in the refrigerant flowing through the bypass line 2; the third filter 42 is used to filter moisture in the refrigerant flowing through the bypass line 2; the first filter 40, the second filter 41 and the third filter 42 are also used to communicate with the PLC controller to detect whether the first filter 40, the second filter 41 and the third filter 42 are blocked through the PLC controller.

[0031] In this embodiment, the filter assembly 4 is composed of a first filter 40, a second filter 41 and a third filter 42, and the first filter 40, the second filter 41 and the third filter 42 are connected in sequence in the bypass line 2. In a specific implementation, the refrigerant flowing into the bypass line 2 first enters the first filter 40, and the first filter 40 filters the particulate impurities in the refrigerant flowing in. Then, the refrigerant filtered by the first filter 40 flows into the second filter 41, and the colored substances in the refrigerant flowing in are filtered by the second filter 41. Finally, the refrigerant filtered by the second filter 41 flows into the third filter 42, and the moisture in the refrigerant flowing in is filtered by the third filter 42, so that the refrigerant that has been removed from the refrigerant, adsorbed with colored substances and dehydrated is discharged. At the same time, when the first filter 40, the second filter 41 and the third filter 42 filter the refrigerant, the PLC controller in the liquid cooling system will detect whether the filter elements in the first filter 40, the second filter 41 and the third filter 42 are blocked. When the PLC controller detects that any one or more filter elements in the first filter 40, the second filter 41 and the third filter 42 are blocked, the PLC controller can issue an alarm and the relevant personnel will replace the corresponding filter elements.

[0032] In a more specific embodiment, the first filter 40 includes a first shell 400, a first filter element 401, a first pipe 402 and a first pressure sensor 403; the interior of the first shell 400 is connected to the inlet end of the bypass line 2; the first filter element 401 is arranged inside the first shell 400, and the first filter element 401 is connected to the second filter 41 through the first pipe 402 that passes through the first shell 400; the first pressure sensor 403 is arranged at the top of the first shell 400, and the first pressure sensor 403 is used to collect the pressure inside the first shell 400 and transmit it to the PLC controller, so that the PLC controller can detect whether the first filter element 401 is blocked according to the pressure inside the first shell 400.

[0033] In this embodiment, the first filter 40 includes a first housing 400, a first filter element 401, a first pipe 402 and a first pressure sensor 403, wherein the first filter element 401 is mainly used to filter particulate impurities in the refrigerant flowing through the bypass pipe 2. Preferably, the first filter element 401 adopts a stainless steel folded membrane filter element. Furthermore, in order to achieve the purpose of rapid disassembly and assembly, the first filter element 401 can adopt a detachable filter element, and the connection between the first pipe 402 and the second filter 41 can be connected by a clamp 6. In specific implementation, the refrigerant flowing in through the inlet end of the bypass pipe 2 enters the interior of the first housing 400, and then the particulate impurities in the refrigerant flowing in are filtered by the first filter element 401 inside the first housing 400. Finally, the refrigerant that has been cleaned flows into the second filter 41 through the first pipe 402. At the same time, a first pressure sensor 403 is provided at the top of the first housing 400. The PLC controller monitors the pressure inside the first housing 400 in real time via the first pressure sensor 403, allowing the PLC controller to detect whether the first filter element 401 is clogged based on the pressure inside the first housing 400. In one embodiment, the PLC controller receives the pressure inside the first housing 400 collected by the first pressure sensor 403 as the current first pressure value, and compares the current first pressure value with a preset first initial pressure value. When it is detected that the difference between the current first pressure value and the first initial pressure value is greater than the preset first difference, it indicates that the current first pressure value is greater than the first initial pressure value to a certain extent, and it can be considered that the first filter element 401 is clogged. At this time, the PLC controller issues an alarm, and relevant personnel replace the first filter element 401.

[0034] In a more specific embodiment, the second filter 41 includes a second shell 410, a second filter element 411, a second pipe 412 and a second pressure sensor 413; the interior of the second shell 410 is connected to the first pipe 402; the second filter element 411 is arranged inside the second shell 410, and the second filter element 411 is connected to the third filter 42 through the second pipe 412 passing through the second shell 410; the second pressure sensor 413 is arranged at the top of the second shell 410, and the second pressure sensor 413 is used to collect the pressure inside the second shell 410 and transmit it to the PLC controller, so that the PLC controller can detect whether the second filter element 411 is blocked according to the pressure inside the second shell 410.

[0035] In this embodiment, the second filter 41 includes a second housing 410, a second filter element 411, a second pipe 412 and a second pressure sensor 413, wherein the second filter element 411 is mainly used to filter the colored substances in the refrigerant flowing through the bypass line 2 to ensure that the refrigerant is in a colorless and healthy state. Preferably, the second filter element 411 adopts an activated carbon filter element. Furthermore, in order to achieve the purpose of rapid disassembly and assembly, the second filter element 411 can adopt a detachable filter element, and the connection between the second pipe 412 and the third filter 42 can be connected by a clamp 6. In specific implementation, the refrigerant that has been cleaned by the first filter element 401 flows into the interior of the second housing 410 through the first pipe 402, and then the colored substances in the refrigerant flowing in are filtered by the second filter element 411 inside the second housing 410. Finally, the refrigerant that has been adsorbed by the pigment flows into the third filter 42 through the second pipe 412. At the same time, a second pressure sensor 413 is provided at the top of the second housing 410. The PLC controller monitors the pressure inside the second housing 410 in real time via the second pressure sensor 413, allowing the PLC controller to detect whether the second filter element 411 is clogged based on the pressure inside the second housing 410. In one embodiment, the PLC controller receives the pressure inside the second housing 410 collected by the second pressure sensor 413 as the current second pressure value, and compares the current second pressure value with a preset second initial pressure value. When it is detected that the difference between the current second pressure value and the second initial pressure value is greater than the preset second difference, it indicates that the current second pressure value is greater than the second initial pressure value to a certain extent, and it can be considered that the second filter element 411 is clogged. At this time, the PLC controller issues an alarm, and relevant personnel replace the second filter element 411.

[0036] In a more specific embodiment, the third filter 42 includes a third shell 420, a third filter element 421, a third pipe 422 and a third pressure sensor 423; the interior of the third shell 420 is connected to the second pipe 412; the third filter element 421 is arranged inside the third shell 420, and the third filter element 421 is connected to the outlet end of the bypass line 2 through the third pipe 422 passing through the third shell 420; the third pressure sensor 423 is arranged at the top of the third shell 420, and the third pressure sensor 423 is used to collect the pressure inside the third shell 420 and transmit it to the PLC controller, so that the PLC controller can detect whether the third filter element 421 is blocked according to the pressure inside the third shell 420.

[0037] In this embodiment, the third filter 42 comprises a third housing 420, a third filter element 421, a third pipe 422, and a third pressure sensor 423. The third filter element 421 is primarily used to filter moisture from the refrigerant flowing through the bypass line 2. Preferably, the second filter element 411 is a coalescing separation filter element, and the second filter element 411 is removable. In practice, the refrigerant, after adsorbing the pigment by the second filter element 411, flows into the interior of the third housing 420 through the second pipe 412. The moisture in the refrigerant is then filtered by the third filter element 421 within the third housing 420. Finally, the dehydrated refrigerant flows out through the outlet of the bypass line 2. Furthermore, a third pressure sensor 423 is provided at the top of the third housing 420. The PLC controller monitors the pressure within the third housing 420 in real time via the third pressure sensor 423, allowing the PLC controller to detect whether the third filter element 421 is clogged based on the pressure within the third housing 420. In one embodiment, the PLC controller receives the pressure inside the third shell 420 collected by the third pressure sensor 423 as the current third pressure value, and compares the current third pressure value with the preset third initial pressure value. When it is detected that the difference between the current third pressure value and the third initial pressure value is greater than the preset third difference, it means that the current third pressure value is greater than the third initial pressure value to a certain extent, and it can be considered that the third filter element 421 is already clogged. At this time, the PLC controller issues an alarm and the relevant personnel replace the third filter element 421.

[0038] In a more specific embodiment, the filter assembly 4 also includes a first drain pipe 43, a second drain pipe 44, a third drain pipe 45, a second electric valve 46, a third electric valve 47, a fourth electric valve 48 and a drain main pipe 49; one end of the first drain pipe 43 is connected to the bottom of the first filter 40, the other end of the first drain pipe 43 is connected to one end of the second electric valve 46, and the other end of the second electric valve 46 is connected to the drain main pipe 49; one end of the second drain pipe 44 is connected to the bottom of the second filter 41, the other end of the second drain pipe 44 is connected to one end of the third electric valve 47, and the other end of the third electric valve 47 is connected to the drain main pipe 49; one end of the third drain pipe 45 is connected to the bottom of the third filter 42, the other end of the third drain pipe 45 is connected to one end of the fourth electric valve 48, and the other end of the fourth electric valve 48 is connected to the drain main pipe 49; wherein, the second electric valve 46, the third electric valve 47 and the fourth electric valve 48 are used to communicate with the PLC controller.

[0039] In this embodiment, to facilitate drainage of the filter assembly 4, a drain pipe is connected to the bottom of each filter in the filter assembly 4 for drainage. Specifically, a first drain pipe 43 is connected to the bottom of the first filter 40, a second drain pipe 44 is connected to the bottom of the second filter 41, and a third drain pipe 45 is connected to the bottom of the third filter 42. The first drain pipe 43, the second drain pipe 44, and the third drain pipe 45 are connected to a main drain pipe 49 via a second electric valve 46, a third electric valve 47, and a fourth electric valve 48, respectively. The second electric valve 46, the third electric valve 47, and the fourth electric valve 48 are all controlled by a PLC controller, thereby enabling the second electric valve 46, the third electric valve 47, and the fourth electric valve 48 to control whether the first drain pipe 43, the second drain pipe 44, and the third drain pipe 45 are connected to the main drain pipe 49. In one embodiment, the first electric valve 3 on the main line 1 can be controlled to close a certain amount each time or multiple times to allow the refrigerant to flow through the filter assembly 4 on the bypass line 2 to filter particulate impurities, colored substances and moisture, and then the PLC controller controls the second electric valve 46, the third electric valve 47 and the fourth electric valve 48 to open for a period of time for timed sewage discharge, so that the dirt in the first filter 40, the second filter 41 and the third filter 42 are discharged to the sewage main pipe 49 through the first sewage pipe 43, the second sewage pipe 44 and the third sewage pipe 45 respectively, thereby realizing timed sewage discharge.

[0040] In a more specific embodiment, the filter assembly 4 further includes a laser detection module 5 ; the laser detection module 5 is used to detect whether there is a preset amount of water inside the third sewage pipe 45 .

[0041] In this embodiment, the third drain pipe 45 is a transparent tube located at the bottom of the third filter 42. The third filter 42 is used to filter water from the refrigerant flowing through the bypass line 2. After a long period of refrigerant filtration, the filtered water gradually accumulates and, due to its greater density than the refrigerant, gradually settles into the third drain pipe 45. However, since both the refrigerant and water are colorless, the presence of water in the third drain pipe 45 cannot be directly determined by the naked eye. Therefore, the filter assembly 4 also includes a laser detection module 5. Because the density of water is greater than that of the refrigerant, the refraction of laser light in the third drain pipe 45 is different. The laser detection module 5 detects whether a predetermined amount of water is present in the third drain pipe 45, facilitating timely drainage. Furthermore, the laser detection module 5 is communicatively connected to a PLC controller. The PLC controller can control the fourth electric valve 48 based on signals transmitted by the laser detection module 5. When the laser detection module 5 detects the presence of a predetermined amount of water in the third drain pipe 45, the PLC controller controls the fourth electric valve 48 to open and drain the water. In addition, the first sewage pipe 43 and the second sewage pipe 44 can be set as transparent pipes and inspected by relevant personnel. When dirt is found in the first sewage pipe 43 and / or the second sewage pipe 44 with the naked eye, the PLC controller is operated to control the second electric valve 46 and / or the third electric valve 47 to discharge sewage.

[0042] In a more specific embodiment, the laser detection module 5 includes a laser emitter 50, a first laser receiver 51 and a second laser receiver 52; the laser emitter 50 is arranged on one side of the third sewage pipe 45; the first laser receiver 51 and the second laser receiver 52 are arranged on the other side of the third sewage pipe 45.

[0043] In this embodiment, the laser detection module 5 is composed of a laser emitter 50, a first laser receiver 51 and a second laser receiver 52. The laser emitter 50 is arranged on one side of the third sewage pipe 45, and the first laser receiver 51 and the second laser receiver 52 are arranged at two different preset positions on the other side of the third sewage pipe 45. The laser emitter 50 emits a laser to the third sewage pipe 45. When the first laser receiver 51 receives the laser, it means that there is a preset amount of water inside the third sewage pipe 45, that is, at this time, the position inside the third sewage pipe 45 corresponding to the preset value is water, and sewage needs to be discharged; when the second laser receiver 52 receives the laser, it means that there is no preset amount of water inside the third sewage pipe 45, that is, at this time, the position inside the third sewage pipe 45 corresponding to the preset value is refrigerant, and sewage does not need to be discharged. Furthermore, the laser emitter 50, the first laser receiver 51 and the second laser receiver 52 are communicatively connected to the PLC controller, and the PLC controller controls the laser emitter 50 to start emitting laser. If the PLC controller receives a corresponding signal sent by the first laser receiver 51 when receiving the laser, the PLC controller controls the fourth electric valve 48 to open for drainage; if the PLC controller receives a corresponding signal sent by the second laser receiver 52 when receiving the laser, the PLC controller controls the fourth electric valve 48 to continue to close.

[0044] In a more specific embodiment, the intelligent filtering device also includes a first bypass valve (not shown) and a second bypass valve (not shown); the first bypass valve is arranged between the inlet end of the bypass line 2 and the filter assembly 4; the second bypass valve is arranged between the outlet end of the bypass line 2 and the filter assembly 4.

[0045] In this embodiment, a first bypass valve is set between the inlet end of the bypass line 2 and the filter assembly 4, and a second bypass valve is set between the outlet end of the bypass line 2 and the filter assembly 4. When the first bypass valve and the second bypass valve are both closed, the entire filter assembly 4 can be replaced, which facilitates the replacement of the filter assembly 4.

[0046] The present utility model also proposes a liquid cooling system, including a PLC controller and an intelligent filtering device as described in any of the aforementioned embodiments; the PLC controller is communicatively connected with the first electric valve 3 and the filter component 4 in the intelligent filtering device; the PLC controller is used to send an opening control signal to the first electric valve 3 and detect whether the filter element in the filter component 4 is blocked.

[0047] In this embodiment, see Figure 1 and Figure 2The PLC controller of the liquid cooling system controls the first electric valve 3 in the intelligent filtering device and detects the filter element in the filter assembly 4 in the intelligent filtering device. Specifically, the refrigerant is oil coolant. When the liquid cooling system is working normally, Figure 1 As shown, due to the flow resistance of the filter assembly 4, the refrigerant circulates in the main line 1. When the PLC controller sends an opening control signal to the first electric valve 3 on the main line 1, thereby controlling the first electric valve 3 to close a certain amount, the refrigerant flow rate flowing through the outlet end of the main line 1 is adjusted, so that there is a certain pressure difference between the inlet and outlet ends of the main line 1, so that the refrigerant not only flows through the main line 1, but also flows through the bypass line 2. The filter assembly 4 then filters the particulate impurities, colored substances and water in the refrigerant flowing through the bypass line 2, thereby achieving the refrigerant cleanliness without affecting the operation of the liquid cooling system. Preferably, the PLC controller can be set to send an opening control signal to the first electric valve 3 on the main line 1 at a preset time period, thereby regularly removing impurities, adsorbing colored substances and removing water from the refrigerant, wherein the preset time period is a period when the liquid cooling server in the liquid cooling system has less access, that is, a period when the refrigerant circulation volume required by the main line 1 is less. When the refrigerant flows through the filter assembly 4 of the bypass pipe 2 for filtration, the PLC controller will also detect whether the filter element in the filter assembly 4 is blocked. When the PLC controller detects that the filter element in the filter assembly 4 is blocked, the PLC controller can issue an alarm and relevant personnel will replace the corresponding filter element.

[0048] The utility model provides an intelligent filtering device and a liquid cooling system, which controls the opening of the first electric valve 3 on the main line 1, thereby allowing the refrigerant to flow through the filter assembly 4 on the bypass line 2 for filtration, thereby removing impurities from the refrigerant, adsorbing colored substances and removing water, thereby ensuring the cleanliness of the refrigerant.

[0049] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and such modifications or substitutions are intended to be within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be subject to the scope of protection of the claims.

Claims

1. An intelligent filtering device, characterized in that: Applied to liquid cooling system, including: main line, bypass line, first electric valve and filter assembly; The two ends of the main line are respectively connected to the two ends of the bypass line; the first electric valve is arranged on the main line; the filter assembly is arranged on the bypass line; The first electric valve is used to communicate with the PLC controller in the liquid cooling system to adjust the refrigerant flow through the outlet end of the main line according to the opening control signal sent by the PLC controller; The filter assembly is used to filter particulate impurities, colored substances and moisture in the refrigerant flowing through the bypass line; the filter assembly is also used to communicate with the PLC controller to detect whether the filter element in the filter assembly is blocked through the PLC controller.

2. The intelligent filtering device according to claim 1, characterized in that: The filter assembly includes a first filter, a second filter and a third filter; One end of the first filter is communicated with the inlet end of the bypass pipe, the other end of the first filter is communicated with one end of the second filter, the other end of the second filter is communicated with one end of the third filter, and the other end of the third filter is communicated with the outlet end of the bypass pipe; The first filter is used to filter particulate matter and impurities in the refrigerant flowing through the bypass pipe; the second filter is used to filter colored substances in the refrigerant flowing through the bypass pipe; and the third filter is used to filter moisture in the refrigerant flowing through the bypass pipe. The first filter, the second filter and the third filter are further configured to be connected to the PLC controller for communication, so as to detect whether the first filter, the second filter and the third filter are clogged via the PLC controller.

3. The intelligent filtering device according to claim 2, characterized in that: The first filter includes a first housing, a first filter element, a first pipe and a first pressure sensor; The interior of the first housing is communicated with the inlet end of the bypass line; the first filter element is disposed inside the first housing, and the first filter element is communicated with the second filter through the first pipe running through the first housing; The first pressure sensor is arranged on the top of the first shell, and is used to collect the pressure inside the first shell and transmit it to the PLC controller, so that the PLC controller can detect whether the first filter element is blocked according to the pressure inside the first shell.

4. The intelligent filtering device according to claim 3, characterized in that: The second filter includes a second housing, a second filter element, a second pipe and a second pressure sensor; The interior of the second housing is communicated with the first pipe; the second filter element is disposed inside the second housing, and the second filter element is communicated with the third filter via the second pipe running through the second housing; The second pressure sensor is arranged on the top of the second shell, and is used to collect the pressure inside the second shell and transmit it to the PLC controller, so that the PLC controller can detect whether the second filter element is blocked according to the pressure inside the second shell.

5. The intelligent filtering device according to claim 4, characterized in that: The third filter includes a third housing, a third filter element, a third pipe and a third pressure sensor; The interior of the third housing is communicated with the second pipe; the third filter element is disposed inside the third housing, and the third filter element is communicated with the outlet end of the bypass line through the third pipe running through the third housing; The third pressure sensor is arranged on the top of the third shell, and is used to collect the pressure inside the third shell and transmit it to the PLC controller, so that the PLC controller can detect whether the third filter element is blocked according to the pressure inside the third shell.

6. The intelligent filtering device according to any one of claims 2 to 5, characterized in that: The filter assembly further includes a first sewage pipe, a second sewage pipe, a third sewage pipe, a second electric valve, a third electric valve, a fourth electric valve and a sewage main pipe; One end of the first drain pipe is connected to the bottom of the first filter, the other end of the first drain pipe is connected to one end of the second electric valve, and the other end of the second electric valve is connected to the drain main pipe; one end of the second drain pipe is connected to the bottom of the second filter, the other end of the second drain pipe is connected to one end of the third electric valve, and the other end of the third electric valve is connected to the drain main pipe; one end of the third drain pipe is connected to the bottom of the third filter, the other end of the third drain pipe is connected to one end of the fourth electric valve, and the other end of the fourth electric valve is connected to the drain main pipe; The second electric valve, the third electric valve and the fourth electric valve are used for communication connection with the PLC controller.

7. The intelligent filtering device according to claim 6, characterized in that: The filter assembly further includes a laser detection module; the laser detection module is used to detect whether there is a preset amount of water inside the third sewage pipe.

8. The intelligent filtering device according to claim 7, characterized in that: The laser detection module includes a laser transmitter, a first laser receiver and a second laser receiver; The laser transmitter is arranged on one side of the third sewage pipe; the first laser receiver and the second laser receiver are arranged on the other side of the third sewage pipe.

9. The intelligent filtering device according to claim 1, characterized in that: Also included is a first bypass valve and a second bypass valve; The first bypass valve is arranged between the inlet end of the bypass line and the filter assembly; the second bypass valve is arranged between the outlet end of the bypass line and the filter assembly.

10. A liquid cooling system, characterized in that: comprising a PLC controller and an intelligent filtering device according to any one of claims 1 to 9; The PLC controller is in communication with the first electric valve and the filter assembly in the intelligent filtering device; the PLC controller is used to send an opening control signal to the first electric valve and detect whether the filter element in the filter assembly is blocked.

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