Immersion cooling system

Abstract

A cooling system includes: a sump region configured to contain a dielectric fluid; a bath region that receives the computer component; a first filter; a second filter; and a pump that draws the dielectric fluid from the sump region, passes the dielectric fluid through at least one of the first filter or the second filter, and delivers the dielectric fluid to the bath region. The bath region contains a dielectric fluid.

Description

[0001] Cross-reference to related applications

[0002] This application claims priority to U.S. Provisional Application No. 63 / 529,194, filed July 27, 2023, which relates to PCT Publication WO2020 / 102090, filed November 11, 2019, the entire contents of each of the aforementioned applications are incorporated herein by reference. Technical Field

[0003] This disclosure relates to processes and systems for using dual filters, clamping caps, and stabilizers in liquid immersion cooling platforms. Background Technology

[0004] Halogenated hydrocarbons, such as perfluorocarbon liquid dielectric fluids (e.g., 3M's NOVEC™), are frequently used in immersion cooling of computer components, such as servers. As the dielectric fluid circulates through the system, it washes away various contaminants and debris that can be detrimental to computer components and / or other aspects of the liquid immersion cooling system. Therefore, it is desirable to incorporate a filtration system into the immersion cooling platform to separate these harmful contaminants and debris.

[0005] Additionally, in immersion cooling platforms, it is sometimes desirable to replace computer components. Therefore, some immersion cooling platforms provide a cover to allow access to and removal of the computer component. These immersion cooling platforms provide a large cover that is secured to the body of the tank using screws. Therefore, it is desirable to provide a cover that can be easily removed.

[0006] Furthermore, some immersion cooling platforms can be mounted on a moving body. In such platforms, the tank can shake and vibrate. Therefore, it is desirable to minimize any moving impacts on the immersion cooling platform and its components.

[0007] This document discloses filters, covers, and stabilization methods and systems for liquid immersion cooling platforms. These and other objects, features, and advantages of the exemplary embodiments of this disclosure will become apparent when read in conjunction with the following detailed description of the exemplary embodiments of this disclosure in conjunction with the appended claims. Summary of the Invention

[0008] In one aspect, a cooling system includes: a reservoir region configured to contain dielectric fluid; a bath region configured to receive computer components; a first filter; a second filter; and a pump configured to draw the dielectric fluid from the reservoir region, pass the dielectric fluid through the first filter or the second filter, and deliver the dielectric fluid to the bath region. The bath region is configured to contain the dielectric fluid.

[0009] In another aspect, which can be combined with any other aspect, the first filter and the second filter are positioned in the storage tank area.

[0010] In another aspect, which can be combined with any other aspect, a pH sensor is fluidly connected to the second filter. The pH sensor is configured to indicate the pH of the dielectric fluid flowing through the second filter.

[0011] In another aspect, which can be combined with any other aspect, the first filter includes a first housing and a first nozzle extending from the first housing. The second filter includes a second housing and a second nozzle extending from the second housing. The pump is configured to deliver the dielectric fluid to the bath area through the first nozzle or the second nozzle.

[0012] In another aspect, which can be combined with any other aspect, the pump is configured to guide the dielectric fluid through at least one of the first filter or the second filter when the computer component is placed in the bath area.

[0013] In another aspect, which can be combined with any other aspect, the cooling system includes a container having a reservoir area and a bath area. The bath area is configured to receive computer components. The bath area and the reservoir area are configured to contain the dielectric fluid. The cooling system also includes a first filter, a second filter, and a pump configured to move the dielectric fluid through the cooling system. During a threshold time period, the pump is configured to draw the dielectric fluid from the reservoir area, pass the dielectric fluid through the first filter, and deliver the dielectric fluid to the bath area. After the threshold time period, the pump is configured to draw the dielectric fluid from the reservoir area, pass the dielectric fluid through the second filter, and deliver the dielectric fluid to the bath area.

[0014] In another aspect, which can be combined with any other aspect, the valve is in fluid communication with the pump, a first conduit is fluidly connected to the valve and the first filter, and a second conduit is fluidly connected to the valve and the second filter.

[0015] In another aspect, which can be combined with any other aspect, during the threshold time period, the valve fluidly connects the pump and the first filter, and fluidly isolates the pump from the second filter. After the threshold time period, the valve fluidly connects the pump and the second filter, and fluidly isolates the pump from the first filter.

[0016] In another aspect, which can be combined with any other aspect, the pressure sensor is configured to determine the pressure drop across the first filter.

[0017] In another aspect, which can be combined with any other aspect, the pump is configured to allow the dielectric fluid to pass through the first filter when the voltage drop across the first filter is less than a threshold. When the voltage drop across the first filter is greater than the threshold, the pump is configured to allow the dielectric fluid to pass through the second filter.

[0018] In another aspect, which can be combined with any other aspect, the flow sensor is configured to determine the flow rate passing through the first filter.

[0019] In another aspect, which can be combined with any other aspect, when the flow rate through the first filter is greater than a threshold, the pump forces the dielectric fluid through the first filter. When the flow rate through the first filter is less than the threshold, the pump forces the dielectric fluid through the second filter.

[0020] In another aspect, which can be combined with any other aspect, a pH sensor is fluidly connected to the second filter. The pH sensor is configured to determine the pH of the dielectric fluid flowing through the second filter after the threshold time period.

[0021] In another aspect, which can be combined with any other aspect, the threshold time period is fourteen days.

[0022] In another aspect, which can be combined with any other aspect, the cooling system includes a container having a reservoir area and a bath area. The bath area is configured to receive computer components. The bath area and the reservoir area are configured to contain dielectric fluid. The cooling system further includes: an expandable bellows configured to regulate the internal pressure of the container; a filter having a housing and a nozzle extending from the housing; and a pump configured to draw the dielectric fluid from the reservoir area, pass the dielectric fluid through the filter, and deliver the dielectric fluid through the nozzle to the bath area.

[0023] In another aspect, which can be combined with any other aspect, the door is selectively coupled to the container. The door is movable between an open position and a closed position. The door provides access to the container in the open position and seals the container in the closed position.

[0024] In another aspect, which can be combined with any other aspect, the door is coupled to the container by an electric clamp configured to move the door between the open position and the closed position.

[0025] In another aspect, which can be combined with any other aspect, the container is positioned inside the shell, and the shock absorber is positioned between the shell and the container.

[0026] In another aspect, which can be combined with any other aspect, the damper is an active damper, and the stiffness of the active damper is adjusted based on the stress characteristics applied to the container.

[0027] In another aspect, which can be combined with any other aspect, the filter is a first filter, the housing is a first housing, and the nozzle is a first nozzle. The cooling system further includes a second filter having a second housing and a second nozzle extending from the second housing. The pump is configured to deliver the dielectric fluid through the first filter and through the first nozzle to the bath area during the threshold time period. The pump is configured to deliver the dielectric fluid through the second filter and through the second nozzle to the bath area after the threshold time period.

[0028] Other aspects of this disclosure will become apparent when the detailed description and accompanying drawings are taken into consideration. Attached Figure Description

[0029] Various embodiments of the present disclosure, as well as further objects and advantages, can be best understood from the following description taken in conjunction with the accompanying drawings.

[0030] Figure 1 This is a schematic diagram illustrating the features of a liquid immersion cooling system.

[0031] Figure 2 This is a schematic diagram illustrating the features of a liquid immersion cooling system.

[0032] Figure 3 This is a perspective view showing the features of a liquid immersion cooling system.

[0033] Figure 4 yes Figure 3 A perspective view of a liquid immersion cooling system, with a portion of the housing removed.

[0034] Figure 5 yes Figure 3 A side view of a liquid immersion cooling system, with a portion of the housing removed.

[0035] Figure 6 It is along Figure 3 The perspective view of the cross-section of the liquid-immersed cooling system, taken by line 6-6.

[0036] Figure 7 yes Figure 3A perspective view of a liquid immersion cooling system, with a portion of the housing removed.

[0037] Figure 8 It is along Figure 5 The cross-sectional view of the liquid immersion cooling system is shown in line 8-8. Detailed Implementation

[0038] The following description of the embodiments provides non-limiting representative examples of reference numerals to specifically describe the features and teachings of different aspects of this disclosure. The described embodiments should be considered as being able to be implemented separately or in combination with other embodiments described from the embodiments. Those skilled in the art who read the description of the embodiments should be able to learn and understand the different descriptive aspects of this disclosure. The description of the embodiments is intended to facilitate understanding of this disclosure such that other implementations not specifically covered but within the knowledge of those skilled in the art who read the description of the embodiments will be understood to be consistent with the application of this disclosure.

[0039] In one example embodiment, the immersion cooling system or container may include a bath area, a storage tank area, a computing device, a robot, a pressure control system, a temperature control system, and a management system. The container may be a pressure-controlled tank maintained at atmospheric pressure (or within a range thereof). The computing device may be immersed in dielectric fluid within the bath area of ​​the container. The computing device may be connected to a network and perform various processing tasks while immersed in the dielectric fluid. The container may include a cover for accessing the bath area, the computing device, and the storage tank area. The container may be fluidly coupled to the pressure control system. When the cover is opened, the robot may lift the computing device from the bath area of ​​the container. The robot may place the lifted computing device in a tray or vehicle provided for storing the computing device. The robot may also lift the computing device from the tray (or vehicle) and place it in the bath area at the location of the aforementioned lifted computing device.

[0040] In one example embodiment, the container may contain a certain amount of dielectric fluid, such that the bath area is filled with dielectric fluid, and there may be overflow of dielectric fluid in the storage area. A full bath area ensures that the computing device is completely immersed in the dielectric fluid. A pump can draw dielectric fluid from the storage area and pass the fluid through a filter. After passing through the filter, the dielectric fluid can return to the bath area. The container may include various pipes connecting the storage area, the pump, the filter, and the bath area.

[0041] Figure 1A liquid immersion cooling system 100 including a filter 121 is shown. The liquid immersion cooling system 100 may include a container 110 (also referred to as housing 110) and a vehicle 120. Container 110 may include a bath area 111, a reservoir area 112, fluid 113 (e.g., dielectric fluid), computer component 114, pump 115, filter 121, door 116, and management system 117. Bath area 111 and reservoir area 112 contain fluid 113. Computer component 114 may be immersed in fluid 113. Vehicle 120 may include a robot 123. When door 116 is open, robot 123 may lift computer component 114 and place computer component 114 onto vehicle 120.

[0042] Filter 121 may include one or more filter cartridges or elements. Each cartridge may filter dielectric fluid 113 for different types of contaminants, particles, substances, diluents, or solutes. In one example, a cartridge may include activated carbon (charcoal). In another example, a cartridge may include activated aluminum.

[0043] A liquid immersion cooling system may include more than one filter. For example, the liquid immersion cooling system may include a first filter 121A and a second filter 121B. In one example, one or more of filters 121A and 121B are located outside the container 110. When filters 121A and / or 121B are located outside the container 110, maintenance personnel can replace one or more filters without opening the door 116 of the container 110. In another example, one or more of filters 121A and 121B are located inside the container 110.

[0044] A filter can be coupled to a filter controller 121C. The filter controller 121C may include a processor, memory, one or more valves, one or more motors or actuators for controlling the valves, an interface for communicating with the management system 117, one or more pressure readers, and / or one or more flow meters. The filter controller 121C can (directly or via instructions from the management system 117) direct fluid 113 to one, both, or no filters, either of filters. For example, filter 121A may be a dedicated filter used for the first few minutes after the computer component 114 is placed in the liquid immersion cooling system 100, while filter 121B may be a dedicated filter used after filter 121A has been used for a threshold time period.

[0045] Filter controller 121C can (directly or via instructions from management system 117) determine when to switch the flow of fluid 113 between filters 121A and 121B. For example, filter controller 121C can perform pressure or flow tests and determine whether one or both filters 121A and 121B need replacement. For example, if the pressure drop of fluid 113 through filter 121A is greater than a threshold (or a threshold number), or if the flow rate through filter 121A is less than a threshold number, filter controller 121C can (directly or via instructions from management system 117) switch the flow of fluid 113 from filter 121A to filter 121B, or direct the flow of fluid 113 to both filters 121A and 121B. The threshold number relates to the accumulation of debris and / or contaminants in filters 121A and 121B. The threshold number can be any suitable number that defines the point at which filters 121A and 121B are no longer suitable for use and should be replaced.

[0046] In some examples, when container 110 receives an instruction, for example, via management system 117, that computer component 114 needs to be replaced or that a new computer component 114 is being added to container 110, management system 117 can signal filter controller 121C to execute a replacement routine once computer component 114 is added to container 110. In practice, most debris and contaminants are introduced into container 110 when it is added. Therefore, when computer component 114 is added, filter 121A can filter initial debris and contaminants from fluid 113, and after a threshold time period, filter controller 121C can switch the flow of fluid from flow to filter 121A to flow to filter 121B. The threshold time period can be, for example, fourteen days, ten days, seven days, or any other suitable amount of time sufficient to remove initial debris and contaminants from fluid 113.

[0047] The filter may include a pH indicator. Maintaining a neutral pH environment is important for keeping computer components deployed in fluids in good working order. The indicator may come into contact with a dielectric fluid and change color if the dielectric fluid becomes acidic. In one example, the indicator may include phenolphthalein. In one example, filters 121A and 121B each have a pH indicator. Filters 121A and 121B may be placed outside container 110. In this example, each of filters 121A and 121B may include a color indicator visible outside container 110.

[0048] The filter may include a color detection sensor that can detect color changes in the indicator and, if a color change is detected, send a signal to a management system (or another system). In one example, the indicator may be positioned within a housing or chamber including a glass enclosure. Therefore, color changes in the indicator are visible outside the housing. A camera may be positioned near the housing. The camera can take a photograph of the indicator (behind the glass enclosure) and send the photograph to the management system. If the management system (or a user of the system) detects a color change in the indicator (using data provided by the camera or color sensor), the management system can trigger remedial measures, such as notifying a maintenance system or shutting down the system. In one example, for instance, when filters 121A and 121B are placed outside container 110, color changes in the indicator are visible outside container 110.

[0049] In one example, the liquid immersion cooling system 100 may include one or more doors 116. Each door 116 is movable between an open position and a closed position. In the open position, door 116 provides an entrance into container 110. In the closed position, door 116 seals container 110 to prevent entry into container 110. Each door 116 may correspond to a predetermined number of computer components 114. In one example, each door 116 may correspond to a set of computer components 114, thereby minimizing the computer's exposure to the external environment outside container 110.

[0050] In one example, each door 116 may be secured to and seal container 110 using a clamp (e.g., toggle clamp 122). Toggle clamp 122 provides easy access to container 110. In this example, a seal may be placed between the door and container 110 to maintain a consistent internal operating environment. In one example, the clamp may be motorized and operated using signals received from management system 117. In one example, the clamp may only allow door 116 to be opened upon receiving authorization from management system 117. In one example, management system 117 instructs the clamp to open only when maintenance personnel provide a password or scan an RFID card.

[0051] In one example, the immersion cooling system 100 can be placed on a moving body. During movement, the container 110 can experience various forms of mechanical stress. Therefore, one or more resilient mechanisms can be provided to minimize the stress on the container 110 and its components.

[0052] Figure 2 It shows that it can be used with Figure 1 The cooling system 100 shown is a liquid immersion cooling system. Components of the liquid immersion cooling system 200 are labeled as being the same as similar components of the liquid immersion cooling system 100.

[0053] In one example, container 110 may be placed within housing 210. In one example, various resilient mechanisms may be provided between housing 210 and container 110. For example, liquid immersion cooling system 200 may include one or more dampers 211 between housing 210 and container 110. In one example, liquid immersion cooling system 200 may include one or more springs between housing 210 and container 110.

[0054] In one example, an active damper may be positioned between the shell 210 and the container 110. The active damper may be an electronically controlled damper capable of altering its behavior based on stress characteristics. For example, the stiffness of the active damper may be adjusted to change its performance. In one example, the liquid immersion cooling system 200 may include one or more sensors, such as speedometers and accelerometers, that can determine the movement of the container and the stress characteristics applied to it. In one example, based on sensor readings, the management system 117 may determine the stress characteristics and, in response, provide various signals to the active damper to minimize damage to the container 110 and its components.

[0055] In one example, the immersion cooling system 200 may include a power distribution unit 220. The power distribution unit 220 can operate as a switch within the system. For example, the power distribution unit 220 may allow power to the immersion cooling system 200 to be switched on and off at zero current. In one example, the power distribution unit 220 may eliminate voltage spikes. The power distribution unit 200 supplies power to computational loads and control systems. The power distribution unit 200 can be configured for a variety of single-phase and three-phase input voltages. The power distribution unit 200 is compatible with at least both 50Hz and 60Hz. The power distribution unit 200 can also be configured for single or redundant power input sources. The power distribution unit 200 consists of an input power supply, a main power disconnect, power disconnect / interrupt devices (fuses or circuit breakers) for each server / branch, and relays for each server / branch that can be controlled by a unit controller.

[0056] Figures 3 to 8 A liquid cooling system 300 is shown. Components of the liquid cooling system 300 are labeled as being the same as those of similar components in liquid cooling systems 100 and 200. Any component or feature of the liquid cooling systems 100 and 200 described herein may be included in the liquid cooling system 300. Similarly, any component or feature of the liquid cooling system 300 described herein may be in either the liquid cooling system 100 or 200.

[0057] refer to Figure 3The liquid cooling system 300 includes a control panel 304. The control panel 304 is recessed relative to the outer surface of the container 110. The control panel 304 includes a shut-off switch 308 and a connection port 309 to allow local management and control of the liquid cooling system 300. The shut-off switch 308 can be actuated, for example, to disconnect power to the liquid cooling system 300. The control panel 304 can be connected to, for example, a management system 117 and / or a power distribution unit 220. Figure 2 ).

[0058] Continue to refer to Figure 3 Multiple clamps 122 are used to secure the door 116 to the container 110. The clamps 122 can be positioned around the entire perimeter of the container 110. Alternatively, the clamps 122 can be positioned only on a selected number of sides of the container 110. In the illustration, the liquid cooling system 300 includes clamps 122 that extend along three sides of the container 110.

[0059] refer to Figure 4 and Figure 5 A first filter 121A and a second filter 121B are fluidly connected to a pump system 312. The pump system 312 pumps fluid 113 from the reservoir area 112 through the first filter 121A or the second filter 121B, and to the bath area 111. The pump system 312 includes a first pump 316A. The pump system 312 may also include a second pump 316B. The second pump 316B may be a redundant pump, which does not operate during the operation of the first pump 316A and is selectively operated after a failure of the first pump 316A. In some examples, the pump system 312 may include only the first pump 316A.

[0060] Continue to refer to Figure 4 and Figure 5 A valve 320 (e.g., a three-way valve) selectively connects the pump system 312 fluidly to either the first filter 121A or the second filter 121B. Thus, the valve 320 fluidly isolates the pump system 312 from either the first filter 121A or the second filter 121B. The first filter 121A is connected to the valve 320 via a first conduit 324, the second filter 121B is connected to the valve 320 via a second conduit 328, and the valve 320 is connected to the pump system 312 via a third conduit 332. The valve 320 can be adjusted, for example, by a filter controller 121C, to fluidly connect the pump system 312 to the first filter 121A via the first conduit 324, or to the second filter 121B via the second conduit 328.

[0061] In some examples, the pump system 312, valve 320, and first conduit 324, second conduit 328, and third conduit 332 are fully positioned within the reservoir area 112, and the first filter 121A and second filter 121B are partially positioned within the reservoir area 112. In other examples, each of the pump system 312, valve 320, first conduit 324, second conduit 328, third conduit 332, first filter 121A, and second filter 121B may be positioned within or outside the container 110 at any suitable location to move fluid 113 from the reservoir area 112 to the bath area 111.

[0062] Continue to refer to Figure 4 and Figure 5 The cooling system 300 includes a pH indicator 336. The pH indicator 336 shown is connected to a second filter 121B. This pH indicator can come into contact with fluid 113 and changes color if fluid 113 becomes acidic. The pH indicator 336 includes a glass housing 338. The color of the pH indicator 336 is visible through the glass housing 338. A camera or sensor 340 (such as...) Figure 3 The pH indicator 336 (as shown) can be positioned near the pH indicator 336, which can detect color changes in the pH indicator 336, and if a color change in the pH indicator is detected, it can send a signal to the management system 117 (or another system). In other examples, a pH indicator 336 can be connected to both the first filter 121A and the second filter 121B.

[0063] The cooling system 300 may include a flow control valve 342 connected to each of the first filter 121A and the second filter 121B. Each flow control valve 342 can regulate the flow rate of fluid 113 through the corresponding first filter 121A or second filter 121B. Each flow control valve 342 can additionally or alternatively monitor the flow rate of fluid 113 through the corresponding first filter 121A or second filter 121B. In some examples, the flow control valve 342 may be connected to the first conduit 324 and the second conduit 328 respectively, instead of as shown below. Figure 4 It is shown to be connected to the first filter 121A and the second filter 121B.

[0064] The cooling system 300 may include a pressure sensor 344 connected to the pump system 312 and / or the third conduit 332. The pressure sensor 344 may indicate whether the pump system 312 is operating normally or, for example, whether there is a blockage in the first filter 121A or the second filter 121B. For example, when the first filter 121A or the second filter 121B is ready to be replaced, the pressure sensor 344 may detect an increase in back pressure.

[0065] Continue to refer to Figure 4 and Figure 5 The cooling system 300 includes a float sensor 348. The float sensor 348, as shown, is positioned in the reservoir area 112 and adjacent to the pump system 312. The float sensor 348 indicates the level of fluid 113 within the reservoir area 112. The level of fluid 113 can be used, for example, to determine whether the pump system 312 is correctly pumping fluid 113 from the reservoir area 112 to the bath area 111.

[0066] Continue to refer to Figure 4 and Figure 5 The cooling system 300 includes a control system 352. The control system 352 is located within the container 110 and adjacent to the bath area 111 and the storage tank area 112. The control system 352 may include, for example, a management system 117, a filter controller 121C, a power distribution unit 220, and any other components that control the operation of the cooling system 300. The control system 352 is connected to a control panel 304.

[0067] Cooling system 300 includes a condenser 356. When the fluid is in a liquid and / or gaseous state, condenser 356 circulates a coolant, such as water, to cool fluid 113. The condenser 356 shown is positioned above control system 352. Condenser 356 is connected to a coolant inlet 360 and a coolant outlet 364. Coolant flows into condenser 356 through coolant inlet 360 and flows out of condenser 356 through coolant outlet 364. Coolant inlet 360 and coolant outlet 364 each extend within and outside container 110. A temperature sensor may be connected to coolant inlet 360. This temperature sensor can measure the temperature of the coolant flowing into condenser 356 to, for example, indicate whether condenser 356 is receiving coolant at a temperature sufficient for cooling fluid 113 in cooling system 300. In other examples, cooling system 300 may have temperature sensors connected to other components of cooling system 300 to monitor the operating status of cooling system 300. A flow sensor can be connected to coolant outlet 364. This flow sensor can measure the flow rate of coolant out of condenser 356 to, for example, indicate whether there is a blockage within condenser 356 that inhibits its performance. In other examples, cooling system 300 may have flow sensors connected to other components of cooling system 300 to monitor the operating status of cooling system 300.

[0068] The cooling system 300 includes a desiccant 368 positioned within a container 110. The desiccant 368 removes water vapor from the interior of the container 110. The desiccant 368 is connected to a pressure relief valve 372. The pressure relief valve 372, as shown, is positioned outside the container 110. Air enters or exits the container 110 through the pressure relief valve 372. When air enters the container 110 through the pressure relief valve 372, air flows through the desiccant 368 to prevent moisture from entering the container 110.

[0069] The cooling system 300 includes a moisture sensor 376. The moisture sensor 376 detects the amount of water vapor in the container 110. The moisture sensor 376 can send a signal to the control system 352. Excessive moisture within the container 110 is undesirable and may damage the computer components 114. Therefore, if the moisture level within the container 110 reaches a critical level, the control system 352 can, for example, warn the user.

[0070] refer to Figure 6 The first filter 121A includes a first housing 380 and a first filter cartridge 384 positioned within the first housing 380. The first filter 121A also includes a first nozzle 388 extending from the first housing 380. The second filter 121B includes a second housing 392 and a second filter cartridge 396 positioned within the second housing 392. The second filter 121B also includes a second nozzle 400 extending from the second housing 392. Depending on which filter 121A or 121B is being used, fluid 113 enters the first filter 121A or the second filter 121B, passes through the corresponding first filter cartridge 384 or second filter cartridge 396, and then exits the first filter 121A or the second filter 121B through the corresponding first nozzle 388 or second nozzle 400.

[0071] refer to Figure 7 The first nozzle 388 and the second nozzle 400 are positioned above the wall 404 that separates the bath area 111 and the reservoir area 112. The first nozzle 388 and the second nozzle 400 may be, for example, one inch, two inches, etc., above the wall 404. Thus, fluid 113 exits from the first nozzle 388 and the second nozzle 400 and enters the bath area 111. In some examples, the first nozzle 388 and the second nozzle 400 extend above the wall 404 such that the outlet of each of the first nozzle 388 and the second nozzle 400 is positioned above the bath area 111. In other examples, the first nozzle 388 and the second nozzle 400 may have any suitable length and extend from any portion of the respective first housing 380 and second housing 392 to guide fluid 113 into the bath area 111.

[0072] Continue to refer to Figure 7Each computer component 114 includes a handle 408. Each handle 408 can assist in removing the corresponding computer component 114 from the bath area 111 and / or inserting the corresponding computer component 114 into the bath area 111.

[0073] refer to Figure 8 The liquid cooling system includes a bellows 412. The bellows 412 is positioned on the side of the door 116 opposite to the container 110. The bellows 412 is fluidly connected to the inside of the container 110 via a channel 416 extending through the door 116. The bellows 412 regulates the internal pressure of the container 110. As the pressure fluctuates within the container 110, the bellows 412 can expand or contract to regulate these pressure fluctuations, thereby maintaining a relatively constant pressure within the container 110. For example, the bellows 412 can allow the pressure within the container 110 to be maintained at or near atmospheric pressure (i.e., one atmosphere). Fluid 113 can enter the bellows 412 in a gaseous state and then condense within the bellows 412. The inside of the bellows 412 and / or the bellows support plate 126 may include structures (e.g., ramp structures) for guiding the condensed fluid 113 back into the container 110. The bellows 412 can be made of a non-rigid material such as a polyester film.

[0074] During the assembly of the cooling system 300, door 116 is moved to the open position, and computer component 114 is placed in bath area 111 and immersed in fluid 113. While computer component 114 is being placed in container 110, debris and / or contaminants may enter container 110. Door 116 is then moved to the closed position.

[0075] During operation, computer component 114 heats up (i.e., temperature rises), which causes fluid 113 in bath area 111 to heat up. As fluid 113 heats up, it may boil. Some fluid 113 may overflow wall 404 and flow into storage area 112. Some fluid 113 may evaporate and subsequently condense, for example, by condenser 356. The condensed fluid 113 may fall into either bath area 111 or storage area 112. Fluid 113 in storage area 112 is then pumped back into bath area 111. Pump system 312 draws fluid 113 from storage area 112 into third conduit 332. Pump system 312 pushes fluid 113 through valve 320 and then through first conduit 324 into first filter 121A. Fluid 113 flows through first filter 121A and then exits first filter 121A through first nozzle 388. The fluid 113 is then delivered to the bath area 111. This process is repeated during the threshold time period.

[0076] After the threshold time period, debris and / or contaminants that entered container 110 during assembly have been captured by the first filter 121A. Filter controller 121C regulates valve 320 to direct fluid 113 into the second conduit 328 instead of the first conduit 324. Pump system 312 then pumps fluid 113 from reservoir area 112 through third conduit 332, valve 320, second conduit 328, and into second filter 121B. Fluid 113 flows through second filter 121B and then exits second filter 121B through second nozzle 400. Fluid 113 is then delivered to bath area 111. This process is repeated until second filter 121B needs replacement. Second filter 121B has a lifespan much longer than the aforementioned threshold time period, such as six months, one year, two years, or longer.

[0077] Although some embodiments of this disclosure have been described in conjunction with exemplary two-stage immersion cooling systems, those skilled in the art will recognize that the same teachings can also be applied to single-stage immersion cooling systems.

[0078] Various embodiments have been described in the foregoing description with reference to the accompanying drawings. However, it will be apparent that various modifications and alterations can be made thereto, and additional embodiments can be implemented, without departing from the broader scope of this disclosure as set forth in the appended claims. Therefore, the description and drawings are to be considered illustrative rather than restrictive.

Claims

1. A cooling system, comprising: A storage tank region, the storage tank region being configured to accommodate dielectric fluid; A bath area configured to receive computer components, the bath area configured to accommodate the dielectric fluid; First filter; Second filter; as well as A pump configured to draw the dielectric fluid from the storage tank area, pass the dielectric fluid through the first filter or the second filter, and deliver the dielectric fluid to the bath area.

2. The cooling system according to claim 1, wherein, The first filter and the second filter are positioned in the storage tank area.

3. The cooling system of claim 1, further comprising a pH sensor fluidly connected to the second filter, wherein the pH sensor is configured to indicate the pH of the dielectric fluid flowing through the second filter.

4. The cooling system according to claim 1, wherein, The first filter includes a first housing and a first nozzle extending from the first housing. The second filter includes a second housing and a second nozzle extending from the second housing, and The pump is configured to deliver the dielectric fluid to the bath area through the first nozzle or the second nozzle.

5. The cooling system according to claim 1, wherein, The pump is configured to guide the dielectric fluid through the first filter or the second filter when the computer component is placed in the bath area.

6. A cooling system, comprising: A container comprising a storage tank area and a bath tank area, the bath tank area being configured to receive computer components, and the bath tank area and the storage tank area being configured to contain dielectric fluid; First filter; Second filter; as well as A pump, configured to move the dielectric fluid through the cooling system, During a threshold time period, the pump is configured to draw the dielectric fluid from the reservoir area, pass the dielectric fluid through the first filter, and deliver the dielectric fluid to the bath area. After the threshold time period, the pump is configured to draw the dielectric fluid from the storage tank area, pass the dielectric fluid through the second filter, and deliver the dielectric fluid to the bath area.

7. The cooling system according to claim 6, further comprising: The valve is in fluid communication with the pump. A first conduit fluidly connects the valve and the first filter, and A second conduit fluidly connects the valve and the second filter.

8. The cooling system according to claim 7, wherein, During the threshold time period, the valve fluidly connects the pump and the first filter and fluidly isolates the pump from the second filter, and wherein, after the threshold time period, the valve fluidly connects the pump and the second filter and fluidly isolates the pump from the first filter.

9. The cooling system of claim 6, further comprising a pressure sensor configured to determine the pressure drop across the first filter.

10. The cooling system according to claim 9, wherein, When the voltage drop across the first filter is less than a threshold, the pump is configured to pass the dielectric fluid through the first filter, and wherein when the voltage drop across the first filter is greater than the threshold, the pump is configured to pass the dielectric fluid through the second filter.

11. The cooling system of claim 6, further comprising a flow sensor configured to determine the flow rate through the first filter.

12. The cooling system according to claim 11, wherein, When the flow rate through the first filter is greater than a threshold, the pump causes the dielectric fluid to pass through the first filter, and when the flow rate through the first filter is less than the threshold, the pump causes the dielectric fluid to pass through the second filter.

13. The cooling system of claim 6, further comprising a pH sensor fluidly connected to the second filter, wherein the pH sensor is configured to determine the pH of the dielectric fluid flowing through the second filter after the threshold time period.

14. The cooling system according to claim 6, wherein, The threshold time period is fourteen days.

15. A cooling system, comprising: A container comprising a storage tank area and a bath tank area, the bath tank area being configured to receive computer components, and the bath tank area and the storage tank area being configured to contain dielectric fluid; An expandable bellows, configured to regulate the internal pressure of the container; A filter having a housing and an outlet extending from the housing; as well as A pump configured to draw the dielectric fluid from the reservoir area, pass the dielectric fluid through the filter, and deliver the dielectric fluid to the bath area through the nozzle.

16. The cooling system of claim 15, further comprising a door selectively coupled to the container, wherein the door is movable between an open position and a closed position, wherein the door provides access to the container in the open position, and wherein the door seals the container in the closed position.

17. The cooling system according to claim 16, wherein, The door is attached to the container by an electric clamp configured to move the door between the open position and the closed position.

18. The cooling system according to claim 16, wherein, The container is positioned within the shell, and a shock absorber is positioned between the shell and the container.

19. The cooling system according to claim 18, wherein, The shock absorber is an active shock absorber, and the stiffness of the active shock absorber is adjusted based on the stress characteristics applied to the container.

20. The cooling system according to claim 16, wherein, The filter is the first filter. The housing is the first housing. The nozzle is the first nozzle. The cooling system further includes a second filter having a second housing and a second nozzle extending from the second housing. The pump is configured to pass the dielectric fluid through the first filter and deliver it to the bath area through the first nozzle during a threshold time period. The pump is configured to pass the dielectric fluid through the second filter and deliver the dielectric fluid to the bath area through the second nozzle after the threshold time period.

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