Immersion tank for cooling electronic equipment

Abstract

An immersion tank system includes an outer frame and an immersion tank disposed within the outer frame. A method for operating an immersion tank system includes inserting a payload into an immersion tank; flowing a source fluid from the external environment to the heat exchanger through a conduit coupled to the immersion tank; cooling the working fluid using the heat exchanger and the source fluid; flowing the working fluid through one or more ports of the immersion tank; filling a submerged tank comprising a payload to a predetermined level through the one or more ports with a working fluid; transferring heat from the payload to the working medium fluid; discharging gas and / or liquid from one or more discharge ports defining a top surface of the immersion tank; and starting one or more variable speed pumps to enable the working medium fluid to flow to the heat exchanger.

Description

[0001] Cross-references to related applications

[0002] This application claims priority to U.S. Provisional Application No. 63 / 524,337, filed June 30, 2023, and U.S. Patent Application No. 18 / 632,034, filed April 10, 2024, the entire contents of which are incorporated herein by reference for all purposes. Background Technology

[0003] Large-scale server systems, or any power-intensive electronic system performing high-density computing, generate and / or dissipate significant amounts of heat during operation. Furthermore, for electronic devices where heat generation is a byproduct of their primary function, thermal management can benefit from cooling systems. These servers are typically rack-mounted, with fans built into the system to cool the server rack.

[0004] Despite progress in the field of high-density computing systems, there is still a need for improved methods and systems related to cooling of high-density computing systems. Summary of the Invention

[0005] This disclosure generally relates to immersion cooling systems, and in particular to thermal management for high-density computing.

[0006] According to one embodiment, an immersion tank system includes: an outer frame and an immersion tank disposed within the outer frame. The immersion tank further includes one or more ports, one or more pumps, a control system, one or more sensors, and a heat exchanger.

[0007] The immersion tank system may include various alternative embodiments. One or more ports may be used to fill or drain the immersion tank. One or more ports may be disposed on a surface of the immersion tank. The surface may be the bottom surface of the immersion tank. One or more pumps may be variable speed pumps. The immersion tank system may further include sliding guide rails. The immersion tank system may further include a shock-absorbing cage disposed within the outer frame, and the shock-absorbing cage may include a front inlet / outlet cover. Shock-absorbing mounts coupled to the outer frame may provide shock absorption for the immersion tank. The immersion tank may slide in and out of the shock-absorbing cage on the sliding guide rails. The immersion tank may further include sealed inlet / outlet covers. At least one of one or more sensors may be a leak detection sensor. At least one of one or more sensors may be a fluid level sensor. At least one of one or more sensors may be a tank breather health status sensor. At least one of one or more sensors may be a fluid quality sensor. The heat exchanger may include a brazed plate heat exchanger. The immersion tank may drain into an expansion tank.

[0008] According to another embodiment, a method for operating an immersion tank system adaptable to various environments includes: inserting a payload into an immersion tank; allowing a source fluid from an external environment to flow through a conduit connected to the immersion tank to a heat exchanger; using the heat exchanger and the source fluid to cool a working fluid; allowing the working fluid to flow through one or more ports of the immersion tank; filling the immersion tank, including the payload, to a predetermined level with the working fluid through the one or more ports; transferring heat from the payload to the working fluid; and discharging gas and / or liquid from one or more vents defining a top surface of the immersion tank. The gas and / or liquid is discharged into an expansion tank connected to the immersion tank. The method further includes: activating one or more variable-speed pumps to allow the working fluid to flow to the heat exchanger. The various steps can be repeated until the payload is removed from the immersion tank.

[0009] The method may include various alternative embodiments. The method may further include using one or more control sensors in a shock-absorbing cage surrounding the immersion tank to monitor for leaks. The method may further include using a fluid quality sensor to monitor health indicators of the working fluid. The method may further include using a fluid level sensor to monitor the level of the working fluid in the expansion tank. The method may further include draining the working fluid from the immersion tank through the one or more ports before removing the payload from the immersion tank.

[0010] According to yet another embodiment, a method for accessing an immersion tank system includes: providing an immersion tank including one or more ports, one or more variable-speed pumps, a control system, one or more control sensors, one or more health status sensors, and a heat exchanger. The method further includes: removing a front inlet / outlet plate from a shock-absorbing cage surrounding the immersion tank; attaching a pump and discharging a working fluid from the immersion tank through the one or more ports; sliding the immersion tank out of the shock-absorbing cage; removing an immersion tank cover from the immersion tank; and removing a payload from the immersion tank system.

[0011] The method may include various alternative embodiments. The method may further include: using one or more control sensors in a shock-absorbing cage surrounding the immersion tank to monitor for leakage. The method may further include: using a fluid quality sensor to monitor health indicators of the working fluid. The method may further include: using a fluid level sensor to monitor the level of the working fluid in an expansion tank in fluid communication with the immersion tank. The method may further include: discharging the working fluid from the immersion tank through one or more ports before removing the payload from the immersion tank.

[0012] This disclosure offers numerous benefits compared to conventional technologies. Embodiments of the invention implement single-phase immersion cooling, which improves computational density, reduces power consumption, enhances reliability, and reduces environmental noise. Embodiments of the invention further reduce the footprint of the cooling system and mitigate the risk of backward incompatibility with future high-power electronic devices. The immersion cooling system embodiments described herein optimize rack space, provide modularity, optimize cooling, and achieve higher payload computational density. These and other embodiments of this disclosure, along with their many advantages and features, will be described in more detail below and in the accompanying drawings. Attached Figure Description

[0013] Figure 1 This is a perspective view of an immersion tank system according to an embodiment of the present invention.

[0014] Figure 2A This is a block diagram of an immersion tank system according to an embodiment of the present invention.

[0015] Figure 2B This is according to an embodiment of the present invention. Figure 2A A block diagram of the immersion tank shown.

[0016] Figure 2C This is according to an embodiment of the present invention. Figure 2A The diagram shows a block diagram of the fluid subsystem.

[0017] Figure 3 This is a side view of an immersion tank system according to an embodiment of the present invention.

[0018] Figure 4 This is a front view of an immersion tank system according to an embodiment of the present invention.

[0019] Figure 5 This is an exploded perspective view of an immersion tank system according to an embodiment of the present invention.

[0020] Figure 6A This is a perspective view of an immersion tank according to an embodiment of the present invention.

[0021] Figure 6B This is a front perspective view of the fluid subsystem of an immersion tank according to an embodiment of the present invention.

[0022] Figure 6C This is a rear perspective view of the fluid subsystem of an immersion tank according to an embodiment of the present invention.

[0023] Figure 6D This is a cross-sectional side view of an immersion tank having a fluid subsystem according to an embodiment of the present invention.

[0024] Figure 7This is a flowchart of a method according to an embodiment of the present invention. Detailed Implementation

[0025] This disclosure generally relates to immersion cooling systems, and in particular to thermal management for high-density computing.

[0026] With the continued growth in demand for high-density computing and storage resources, limitations arise regarding available expansion space, building and equipment costs, and communication latency. The increasing processing power and storage capacity configured on a single server, the increasing number of servers placed in a single rack, and / or the increasing number of servers and / or rails deployed in a single server farm present significant thermal challenges. As the demand for high-performance embedded systems increases, air cooling technology cannot keep pace with the shrinking size and increasing functionality of computer hardware. Furthermore, traditional fan-based cooling systems require significant power and associated costs. Additionally, air cooling of electronic components requires careful consideration of air quality parameters, including temperature, humidity, and airborne particles and contaminants. Therefore, embodiments of the present invention provide improved methods and systems related to the cooling of server systems.

[0027] Infrastructure as a Service (IaaS) solutions exacerbate this problem. Some commercial markets have implemented immersion technologies in data centers to address compute density and cooling issues. Shipborne computing, particularly shipborne cloud computing and advanced networking, significantly increases the demand for computing resources in constrained environments. Ships can include all maritime vessels, such as submarines, as well as offshore platforms, such as oil rigs. Therefore, there is a need for systems with increased computing capacity that can overcome the limitations of shipborne environments, such as size, power, cooling, weight, shock, and vibration. The systems described in this paper can be applied to any other mobile or stationary applications using ruggedized edge systems, such as those used in oil and gas.

[0028] Various embodiments of this disclosure provide an immersion tank system for cooling electronic circuitry. The immersion tank system includes an immersion tank. For example, the immersion tank system includes a ruggedized immersion tank. One or more components of the immersion tank system or the immersion tank are environmentally sealed using compression washers, retaining screws, and / or latches, thereby enabling portable and transportable operation of the immersion tank. For example, environmental sealing allows the immersion tank to have a greater range of pitch, roll, and yaw motions compared to conventional immersion tanks not equipped to handle a wide range of motion. However, as those skilled in the art will recognize upon reading this disclosure, embodiments of the system described herein can operate in more fixed but harsh environments. The immersion tank system described herein is equipped with a series of frames that provide shock and vibration resistance, enabling the immersion tank to be used in relatively unstable environments, such as those encountered during shipboard, airborne, or vehicle-mounted operations. For example, the immersion tank may be a ruggedized immersion tank. The isolation enclosures, particularly the isolation mounts, discussed below, mitigate shock input. In some environments, less robust systems may fail, while this system functions well without additional isolation. For example, the immersion tank can be integrated with a shock-absorbing enclosure for operation in or out of a rack. Furthermore, in addition to custom solutions designed or modified for immersion, shock isolation and vibration tolerance are also applicable to commercial-off-the-shelf (COTS) systems and / or electronic hardware. According to at least some embodiments, the immersion tank, as described herein, can be removed from the external frame and shock cage and installed in a standard rack (e.g., a naval rack).

[0029] Figure 1 This is a perspective view of an immersion tank system according to an embodiment of the present invention. For example, Figure 1 This is a perspective view of a reinforced immersion tank system. System 100 includes an outer frame 102, which can be mounted to a surface in the operating environment of system 100. For clarity, various support features and / or sidewalls of the outer frame 102 have been removed in this view. In various embodiments, the outer frame 102 may include sealing gasket assemblies and mating surfaces to maintain alignment between components of the outer frame 102 and / or to environmentally seal it. System 100 also includes a shock absorber 104 disposed within the outer frame 102. According to various embodiments, the shock absorber 104 is mounted inside the outer frame 102. According to at least some embodiments, the shock absorber 104 may be mounted to the outer frame 102 using shock and / or vibration damping components 105 to adapt to relatively unstable environments, such as those encountered during shipboard operations, airborne operations, vehicle-mounted operations, etc.

[0030] System 100 includes an immersion tank 106 coupled to a fluid subsystem 108. Fluid subsystem 108 includes a heat exchanger 109. Heat exchanger 109 receives a source fluid from the external environment, such as relatively cold circulating water in a shipboard system. In other embodiments, heat exchanger 109 receives a source fluid from any external source. Heat exchanger 109 uses the source fluid to cool a working fluid (e.g., a dielectric fluid) in a manner that will be understood by one of ordinary skill in the art upon reading this disclosure. For example, heat exchanger 109 uses the source fluid to cool the working fluid, and heat exchanger 109 outputs a heated source fluid.

[0031] According to various embodiments, the payload 110 can be inserted into the immersion tank 106. In at least some embodiments, the payload 110 can be inserted into the immersion tank 106 using a locking frame 112. The locking frame 112 is configured to hold the payload 110 in a vertical position (e.g., Figure 1 As shown in the diagram, the system 100 supports the payload 110 as fluid is discharged, dried, or otherwise removed from the payload 110. In various embodiments, fluid is discharged from the immersion tank 106 to a lower volume through one or more ports (not shown) before the payload 110 is removed from the immersion tank 106. The immersion tank 106 may be mounted on a sliding rail 114, allowing the immersion tank 106 to slide in and out of the shock absorber 104. For example, the mounting of the immersion tank 106 may conform to the Electronic Industries Alliance (EIA-310) standard. According to some embodiments, the immersion tank 106 is positioned on the sliding rail 114 to achieve a top access. The combination of the sliding rail 114 and the top access (e.g., an environmentally sealed top access cover on the immersion tank 106, not shown) enables the installation and / or removal or maintenance of the payload, which is often critical for providing the required cooling capacity. In some embodiments, the system 100 described herein includes a lifting mechanism for facilitating the loading and unloading of the payload 110 from the immersion tank 106.

[0032] The fluid subsystem 108 may include one or more variable-speed pumps 116 for use in conjunction with piping to allow the working fluid and / or source fluid to flow through the system 100. In various embodiments, the one or more variable-speed pumps 116 may be constant-speed pumps or a combination of one or more variable-speed pumps and one or more constant-speed pumps. In at least some embodiments, one or more variable-speed pumps 116 may be activated to allow the working fluid to flow to a heat exchanger. The fluid subsystem 108 may further include hose and cable management for optimizing space within the shock absorber 104 and the external frame 102.

[0033] According to various embodiments, the immersion tank 106 is coupled to one or more data and / or power input / output (I / O) cable connectors 118. The I / O cable connectors 118 provide data and / or power input / output to the system 100 in a manner that will be understood by one of ordinary skill in the art upon reading this disclosure.

[0034] In various embodiments, the fluid subsystem 108 includes one or more filters 120 for filtering water and / or particulates from the working fluid. In at least some embodiments, the filters 120 for the working fluid are provided to provide moisture and particulate removal. Monitoring of accumulated moisture in the filters 120 may also be provided to issue a maintenance alarm to replace the filter tank when the liquid level in the containing tank is full.

[0035] The immersion tank 106 includes one or more vents 122 for discharging gas and / or fluid from the immersion tank 106 into an expansion tank (not shown), and the expansion tank discharges gas and / or fluid into a tank breather coupled thereto. For example, when the payload 110 is heated in use and then cooled by the working fluid, the working fluid expands in the immersion tank 106. As the working fluid expands, gas can be discharged through one or more vents 122 defining the top surface of the immersion tank 106, such as... Figure 1 As shown in the diagram, as the working fluid contracts, air is drawn in through a desiccant, which dries the air to ensure that moisture (e.g., water vapor) does not enter system 100. For example, the immersion tank 106 may include vents at each corner of its top surface. One or more vents 122 allow the fluid to expand within the immersion tank 106. The one or more vents 122 may be multi-port vents, which help to control the level and pressure as the temperature and dynamic conditions of the immersion tank 106 change. In at least some embodiments, the one or more vents 122 may be unidirectional vents, which do not allow gas and / or fluid to return to the immersion tank 106. In an exemplary embodiment, the one or more vents 122 provide a pathway for air to exit and enter the immersion tank 106 as the level in the immersion tank 106 changes. Therefore, the pressure in the immersion tank 106 is maintained at or near atmospheric pressure and does not become a vacuum or pressure vessel.

[0036] According to various embodiments, the immersion tank 106 is fluidly connected to the expansion tank. When the system 100 is filled, air is pushed from the immersion tank 106 into the expansion tank, and then the air is further pushed into the atmosphere through the expansion tank and the tank breather. The immersion tank 106 is otherwise sealed, and the only interface between this closed system and the outside air is through one or more vents at the top of the expansion tank.

[0037] In various embodiments, the immersion tank 106 is filled from bottom to top through one or more ports (not shown), which define the bottom surface of the immersion tank 106. In other embodiments, the immersion tank 106 is filled from one or more surfaces (rather than the bottom surface) such that any air is expelled upwards and exits the immersion tank 106, as will be understood by those skilled in the art upon reading this disclosure. According to some embodiments, one or more ports may be located at or near the bottom surface of the immersion tank 106. The immersion tank 106 can be filled to a predetermined level with a working fluid through one or more ports. For example, the predetermined level may be set such that the payload (e.g., payload 110) is substantially covered by the working fluid. The predetermined level may be set such that the immersion tank 106 is filled to an appropriate level on the expansion tank, for example, filled as much as possible without overflowing. As the immersion tank 106 is filled through one or more ports, air may be diverted towards the top surface of the immersion tank 106 by the working fluid filling the immersion tank. One or more vents 122 discharge air from the immersion tank 106 into the expansion tank, and from the expansion tank, the air is discharged into the atmosphere through a tank breather, ensuring that the immersion tank 106 is filled with the working fluid as much as possible. One or more vents 122 in the immersion tank 106 prevent the formation of bubbles in the immersion tank 106 that could lead to uneven cooling. Bubbles can also cause excessive fluid movement (e.g., sloshing) that may occur in a mobile environment. For example, a fully filled immersion tank 106 is easier to control during dynamic events than a partially filled immersion tank due to fluid sloshing, etc. Therefore, it is desirable for the immersion tank 106 to be fully filled to ensure that the payload 110 is never exposed or no longer submerged in the fluid at any time, especially during dynamic events that could cause bubbles to migrate within the immersion tank 106.

[0038] Embodiments of this disclosure optimize rack space utilization by maximizing payload volume and utilizing server depth (through vertically mounted payloads, such as payload 110). For example, embodiments of this disclosure minimize the amount of cooling fluid used for a given payload. The system 100 described herein implements modularity of the cooling distribution unit (CDU), immersion tank 106, and input / output (I / O). In some embodiments, the CDU of system 100 is optimized to have a cooling capacity of 40 kW and 6 °C cooling water. The CDU of system 100 may be connected to more than one immersion tank, as will be understood by those skilled in the art upon reading this disclosure. In other embodiments, the CDU may be less than 40 kW or greater than 40 kW, depending on the capacity of the immersion tank 106.

[0039] According to at least some embodiments of this disclosure, system 100 provides higher payload computing density compared to conventional air-cooled systems by having an improved core count per socket, an increased number of CPU and / or GPU sockets per motherboard, and multiple motherboards packaged in a single unit. Because fans and airflow-guiding structures are removed or eliminated, the space that these components would otherwise occupy can be used to process hardware in the immersion system described herein, thereby increasing overall processing density.

[0040] Figure 2A This is a block diagram of an immersion tank system according to an embodiment of the present invention. For example, Figure 2A This is a block diagram of a reinforced immersion tank system. (About...) Figure 1 The description of system 100 applies to the description of a block diagram of a mobile immersion tank system. System 200 includes an external frame 102. In at least some embodiments, the external frame 102 can be mounted to a surface within the operating environment. For example, the external frame 102 can be mounted to one or more walls, pillars, other equipment, other structures, etc., inside a ship, aircraft, vehicle, or other unstable environment. In various embodiments, system 200 can be implemented in addition to Figure 2A In any existing cabinet other than the configuration shown, embodiments of the invention can be integrated into existing enclosures currently used for enclosed air cooling systems.

[0041] System 200 also includes a shock-absorbing cage 104 disposed within an external frame 102. In various embodiments, the shock-absorbing cage 104 may also be referred to as a secondary tank. In at least some embodiments, the shock-absorbing cage 104 serves as a secondary containment tank, providing fluid containment in addition to that provided by the immersion tank 106. The immersion tank 106 or components thereof are environmentally sealed. Furthermore, the shock-absorbing cage 104 provides mechanical shock and / or vibration damping capabilities and may include additional shock and / or vibration support components to accommodate unstable environments encountered during shipboard operations, airborne operations, vehicle-mounted operations, etc. The shock-absorbing cage 104 provides a rigid structure to support components stored therein during normal operation and dynamic events. An isolation system connected to and attached to the outside of the shock-absorbing cage 104 attenuates most of the dynamic input. For example, the shock-absorbing cage 104 is configured to withstand dynamic events such that system 200 remains functional during dynamic events. In various embodiments, the shock-absorbing cage 104 provides rigid support for the immersion tank 106 disposed therein during static operation and during dynamic events that may otherwise deform less rigid conventional structures. Therefore, the isolation system connected to the shock absorber 104 not only provides shock absorption but also acts as a secondary fluid containment chamber in case of fluid leakage from the immersion tank 106 and / or the fluid subsystem. The shock absorber 104 is rigid and provides support for securing the immersion tank 106 and other system components within the isolated environment. For example, the shock absorber 104 may be connected to a portion of the door or front access panel 502 (such as...). Figure 5 As shown in the diagram, the front inlet / outlet plate 502 seals the lower half of the front of the shock absorber 104, so that any fluid that may leak from the immersion tank 106 is contained within the shock absorber 104.

[0042] In various embodiments, the fluid subsystem 108 may be coupled to or integrated with the immersion tank 106. (See also: Regarding...) Figure 2C More fully discussed, the fluid subsystem 108 includes a heat exchanger 109. The heat exchanger 109 receives source fluid 202 from the external environment, such as relatively cold circulating water in a shipboard system. In other embodiments, the heat exchanger 109 receives source fluid 202 cooled from any external source, such as heat exchanger support system 201. The heat exchanger 109 cools the working fluid (e.g., a dielectric fluid) in a manner that will be understood by those skilled in the art upon reading this disclosure. For example, the heat exchanger 109 uses source fluid 202 to output cooled working fluid 204 to immersion tank 106, and the heat exchanger 109 outputs heated source fluid 203 for reuse or otherwise disposed of (e.g., via heat exchanger support system 201). The heated working fluid 205 is directed through the fluid subsystem 108 for recooling and recirculation, as will be understood by those skilled in the art upon reading this disclosure.

[0043] In at least some embodiments, one or more leak detection sensors 212 (such as...) Figure 2A The shock absorber cage 104 (shown in the diagram) may be housed within the shock absorber cage 104. One or more leak detection sensors 212 may be used to monitor for fluid leaks (described in further detail below) from the immersion tank 106 into the shock absorber cage 104. The shock absorber cage 104 may further include a discharge port 214 that seals any fluid leaking from the immersion tank 106 into the shock absorber cage 104 (described in further detail below). Thus, the shock absorber cage 104 can serve as a secondary containment container for any fluid released from the immersion tank 106 in the system 200.

[0044] According to various embodiments, command / control signals 207 can be exchanged between immersion tank 106 and fluid subsystem 108 in a manner that will be understood by those skilled in the art.

[0045] Figure 2B This is according to an embodiment of the present invention. Figure 2A The diagram shows a block diagram of an immersion tank. In various embodiments, system 200 includes an immersion tank 106 for storing a payload 110. The payload 110 may include any type of data rail, server rail, etc. Immersion tank 106 may be an environmentally sealed dielectric immersion tank. The payload 110 can be inserted into immersion tank 106 using a locking rack 112 or other electronic hardware mounting method. The locking rack 112 is configured to hold the payload 110 in a vertical position to support the payload 110 when fluid is drained from immersion tank 106, dried, or otherwise removed, such as... Figure 1 As shown and described. In various embodiments, before removing the payload 110 from the immersion tank 106, fluid flows through one or more ports 210 of the fluid subsystem 108 (which will be discussed below at least regarding...). Figure 2C (Further detailed description) Discharge from immersion tank 106. Port 210 can be used to fill immersion tank 106 with working fluid 204 and / or discharge working fluid 205 from system 200. One or more ports 210 may be integrated quick-disconnect fill and drain ports for providing moisture inflow and outflow control.

[0046] In various embodiments, the immersion tank 106 is in fluid communication with the expansion tank 216 via one or more vents 122 and vent lines 211. The expansion tank 216 may be located at a remote location relative to the immersion tank 106, for example, mounted on the shock absorber 104. The immersion tank 106 is configured to discharge excess working fluid into the expansion tank 216 via the vent lines 211. For example, the working fluid may expand in volume due to an increase in temperature and be discharged into the expansion tank 216 via the vent lines. As the working fluid contracts in volume, it may flow from the expansion tank 216 to the immersion tank 106 via the vent lines 211. The expansion tank 216 may vent to the atmosphere. Therefore, the expansion tank 216 is configured to receive any excess gas and / or liquid discharged from the immersion tank 106 such that the immersion tank 106 does not pressurize during operation. In some embodiments, the expansion tank 216 is coupled to the shock absorber 104. For example, the expansion tank 216 may be disposed on the outer surface of the shock absorber 104 and located within the outer frame 102. The expansion tank 216 may include one or more fluid level sensors 218 for detecting the amount of fluid captured in the expansion tank 216.

[0047] In various embodiments, the immersion tank 106 may further include a tank breather 220. The tank breather 220 allows air exchange between the expansion tank 216 and the atmosphere to ensure that the immersion system 106 does not pressurize during operation. The tank breather 220 includes a desiccant for removing moisture from the air within the system 200. The tank breather 220 may include a tank breather health sensor 222 that monitors the health status (e.g., integrity) of the desiccant. The tank breather health sensor 222 may output a signal indicating that the desiccant should be replaced.

[0048] The immersion tank 106 may further include one or more sensors 224, such as multi-property sensors. The one or more sensors 224 may include one or more fluid quality sensors. Fluid quality sensors can monitor health indicators (e.g., properties) of the working fluid flowing through the system 200. For example, the one or more sensors 224 may include one or more fluid quality sensors that monitor dielectric constant, temperature, dielectric degradation, etc. Dielectric fluid quality monitoring may also be provided to monitor density or viscosity and other fluid properties to ensure that electronic equipment is in a proper immersion environment. According to at least some embodiments, measurements derived from one or more sensors 224 may affect the flow rate and / or operation of the pump in the system 200. In some embodiments, the immersion tank 106 includes a top cover sensor 226 that indicates whether the environmental seal inlet / outlet cover 228 of the immersion tank 106 is in an open and / or closed position.

[0049] Figure 2C This is according to an embodiment of the present invention. Figure 2AThe diagram shows a block diagram of the fluid subsystem. One or more variable-speed pumps 116 control the flow of the cooled working fluid 204 and the heated working fluid 205. The one or more variable-speed pumps 116 may include at least two variable-speed pumps. The one or more variable-speed pumps 116 may be coupled to or otherwise cooperate with one or more valves and / or one or more check valves to further control the flow rates of the cooled working fluid 204 and / or the heated working fluid 205 through the system 200. According to various embodiments, the one or more variable-speed pumps 116 of the immersion tank 106 described herein may be hot-swappable pumps for uninterrupted cooling of immersion electronics. The one or more variable-speed pumps 116 may be a set of redundant variable-speed pumps. The pump speed may be varied based on the temperature of the dielectric fluid (e.g., the working fluid) recorded by the temperature sensor in one or more of the aforementioned sensors 224.

[0050] According to at least some embodiments, the fluid subsystem 108 includes a filter 120 for filtering water and / or particulates from the heated working fluid 205. In at least some embodiments, the filter 120 for the heated working fluid 205 is provided to provide moisture and particulate removal. Monitoring of accumulated moisture in the filter 120 may also be provided to issue a maintenance alarm for replacing the filter tank when the water / moisture level in the containing tank is full. For example, a corresponding filter replacement sensor 208 is provided for monitoring criteria indicating whether the filter 120 should be replaced.

[0051] Refer again Figure 2CThe fluid subsystem 108 may include a control system 230 for receiving and / or processing data and / or measurements from any sensors in the immersion tank 106, for example, to modify the flow rate controlled by one or more variable-speed pumps 116. In an exemplary embodiment, the fluid subsystem 108 includes programmable logic controller (PLC) system control. The control system of system 200 may be implemented at other locations within system 200 and may include other methods besides PLC system control. System 200 includes various system control sensors and system health sensors to monitor the characteristics of various fluids and components of system 200. Furthermore, the control system 230 works in conjunction with a user interface 231, enabling a user to monitor and control system 200. According to various embodiments, monitoring and / or controlling system 200 may be performed locally or remotely. In various embodiments, the fluid subsystem 108 further includes a temperature sensor 232, a first pressure sensor 233, and a second pressure sensor 234 for monitoring temperature and pressure in system 200, respectively. Temperature sensor 232 is used to measure the temperature of the working fluid that is heated before entering heat exchanger 109. The pressure difference between the first pressure sensor 233 and the second pressure sensor 234 can be used to calculate the flow rate through heat exchanger 109. Data and / or measurement results from temperature sensor 232, first pressure sensor 233 and second pressure sensor 234 can be further used by control system 230, individually or in combination, to adjust parameters within system 200, such as temperature, flow rate of one or more variable speed pumps 116, etc.

[0052] Figure 3 This is a side view of an immersion tank system according to an embodiment of the present invention. For example, Figure 3 This is a side view of the reinforced immersion tank system. About Figure 1 The description of systems 100 and 200 depicted in Figure 2 applies to the description of a side view of the immersion tank system. As can be seen in this view, the outer frame 102 provides mechanical support for the shock-absorbing cage 104. In this embodiment, the shock-absorbing cage 104 is mounted to the outer frame 102 using shock and / or vibration damping components 105. In other embodiments, the outer frame is shock / vibration isolated, and the shock and / or vibration damping components 105 are optional. Sliding guides 114 allow the immersion tank 106 and the fluid subsystem 108 to be moved into and out of the shock-absorbing cage 104.

[0053] The fluid subsystem 108 connected to the immersion tank 106 includes a heat exchanger 109. The heat exchanger 109 is configured to transfer heat between a working fluid (e.g., a dielectric fluid) and a source fluid (chilled water from the external environment, such as seawater when the system 200 is on a ship).

[0054] Figure 4This is a front view of an immersion tank system according to an embodiment of the present invention. For example, Figure 4 This is a front view of the reinforced immersion tank system. About Figures 1-3 The descriptions of systems 100 and 200 are applicable to the description of the immersion tank system from a front view. As can be seen in this view, the fluid subsystem 108 may include one or more variable-speed pumps 116 for use in conjunction with piping to allow the working fluid to flow through system 100. The fluid subsystem 108 may further include hose and cable management for optimizing space within the shock-absorbing cage 104 and the external frame 102. The fluid subsystem 108 further includes a filter 120 for filtering water and / or particulate matter from the working fluid as it is pumped through associated piping using one or more variable-speed pumps 116.

[0055] Figure 5 This is an exploded perspective view of an immersion tank system according to an embodiment of the present invention. For example, Figure 5 This is an exploded perspective view of the reinforced immersion tank system. About Figures 1-4 The descriptions of system 100 and system 200 are applicable to Figure 5 Description of the exploded perspective view of the immersion tank system shown. System 100 is shown in assembly form, and the assembled immersion tank system includes an outer frame 102, a shock cage 104, and an immersion tank 106. As seen in this view, the shock cage 104 includes a front inlet / outlet plate 502 mounted on the front of the shock cage 104. The front inlet / outlet plate 502 seals the lower half of the front of the shock cage 104, allowing any fluid (e.g., working fluid) that might leak from the immersion tank 106 to be contained within the shock cage 104, thus achieving a secondary fluid containment function for the shock cage 104. When the front inlet / outlet plate 502 is removed from the shock cage 104, the operator can slide the immersion tank 106 out of the shock cage 104 to access the immersion tank 106 and the payload stored within it. The payload stored within the immersion tank 106 can be accessed from an environmentally sealed inlet / outlet cap (described in further detail below) located on the top surface of the immersion tank 106.

[0056] According to at least some embodiments, system 100 includes a control system 230 coupled to an immersion tank 106 and / or a shock-absorbing cage 104 within an external frame 102. The payload data management system 504 may include an external switch and any other electronic system hardware known in the art. For example, at least some embodiments described herein include an immersion network switch for internal data distribution, reducing input / output. Reduced input / output on the immersion tank reduces the number of potential points of leakage or failure. At least some embodiments of this disclosure include partitions and / or connector-type cable interfaces that allow power and data cables to pass through immersion tank inlet / outlet covers while providing sealed interfaces.

[0057] As can be seen in this view, system 100 includes an expansion groove 216. In some embodiments, the expansion groove 216 is coupled to the shock absorber cage 104; for example, the expansion groove 216 may be disposed on the outer surface of the shock absorber cage 104 and located within the outer frame 102, such as... Figure 5 As shown in the image.

[0058] According to at least some embodiments, system 100 can be used as a hybrid immersion cooling and air cooling system. For example, components capable of air cooling (not shown), such as solid-state drives, can be mounted in the space between the top of the immersion tank 106 and the top of the shock-absorbing cage 104. Thus, system 100 provides both immersion cooling and air cooling capabilities simultaneously.

[0059] Figure 6A This is a perspective view of an immersion tank according to an embodiment of the present invention. Regarding... Figures 1-5 The descriptions of systems 100 and 200 apply to the description of the immersion tank. Immersion tank 106 includes an inlet / outlet cover 602 defining the top surface of immersion tank 106. The inlet / outlet cover 602 is an environmentally sealed inlet / outlet cover that prevents leakage from immersion tank 106 into the shock absorber. For example, inlet / outlet cover 602 includes a gasket spaced along the outer periphery of inlet / outlet cover 602. Inlet / outlet cover 602 can be removed to access a payload 110 stored within immersion tank 106. In at least some embodiments, inlet / outlet cover 602 may include an observation window 604 for monitoring the liquid level without removing inlet / outlet cover 602. In at least some embodiments, inlet / outlet cover 602 is secured to immersion tank 106 using one or more fasteners 606, such as screw and washer assembly (SEMS) fasteners. In other embodiments, other fasteners (such as latches) may be used to secure inlet / outlet cover 602 to immersion tank 106. In various embodiments, the input / output cable connector 118 is disposed on the inlet / outlet cover 602 or the top surface of the immersion tank 106 for providing data and / or power to the immersion tank 106. In other embodiments, the input / output connector 118 may be disposed at other locations relative to the immersion tank 106, as would be determined by a person skilled in the art based on the intended application. In various embodiments, the immersion tank 106 further includes an electromagnetic interference (EMI) gasket to minimize radiated emissions. For example, the EMI gasket may include a metal-impregnated resilient gasket, other waveguide gaskets, or a cover geometry, etc.

[0060] The immersion tank 106 can be filled from the bottom through one or more ports 210. The one or more ports 210 may be integrated quick-disconnect fill and drain ports. The one or more ports 210 supply working fluid to the immersion tank 106, filling it. Air is discharged from the immersion tank 106 by introducing working fluid, and is discharged through one or more vents 122 disposed on the top surface of the immersion tank 106.

[0061] Immersion tank 106 further includes sliding guide rail 114, which allows immersion tank 106 to be positioned as described above (e.g. Figure 1 (As shown) the shock absorber cage 104 is moved in and out (e.g., slid in and out). The immersion tank 106 is configured to slide in and out of the shock absorber cage on the sliding rail 114 in a manner that will be understood by one of ordinary skill in the art upon reading this disclosure.

[0062] Immersion tank 106 is in fluid communication with fluid subsystem 108 for allowing the working fluid to flow through it. In various embodiments, fluid subsystem 108 includes filter 120 for filtering water and / or particulate matter from the working fluid. Monitoring of accumulated moisture in filter 120 can be provided to issue a maintenance alarm for replacing the filter tank when the water / moisture level in the containing tank is full. Fluid subsystem 108 will be described below. Figures 6B-6D The details are described further in the text.

[0063] Figure 6B This is a front perspective view of the fluid subsystem of an immersion tank according to an embodiment of the present invention. Regarding... Figures 1-6A The descriptions of systems 100, 200, and immersion tank 106 are applicable to the description of the front perspective view of the immersion tank fluid subsystem. Fluid subsystem 108 allows a working fluid (e.g., a dielectric fluid) to flow through the immersion tank and a source fluid (e.g., a chilled fluid from an external source) to flow through heat exchanger 109. According to various embodiments, heat exchanger 109 may be a brazed plate heat exchanger. Heat exchanger 109 receives chilled source fluid through source fluid conduit 630 and outputs source fluid that has been heated by the working fluid flowing through heat exchanger 109 in parallel, as will be understood by one of ordinary skill in the art upon reading this disclosure. Heat exchanger 109 also includes working fluid conduit 626 for allowing the heated working fluid from the immersion tank to flow to heat exchanger 109 for heat transfer between the working fluid and the source fluid. According to various embodiments, the heated working fluid from the immersion tank flows from the top of the immersion tank to the heat exchanger 109, as shown by the directional flow 621 of the heated working fluid.

[0064] The fluid subsystem 108 includes one or more variable-speed pumps 116 for directing a working fluid through a working fluid conduit 626. The one or more variable-speed pumps 116 may be coupled to or otherwise cooperate with one or more valves 632 for further control of the flow rate of the working fluid and / or source fluid. According to various embodiments, the one or more variable-speed pumps 116 may be hot-swappable pumps for uninterrupted cooling of immersed electronic equipment. The one or more variable-speed pumps 116 may be redundant.

[0065] According to various embodiments, the fluid subsystem 108 includes a port 210 for filling and / or discharging the working fluid from the immersion tank. Port 210 may be an integrated quick-disconnect fill and discharge port for providing control over the inflow and outflow of the working fluid.

[0066] The fluid subsystem 108 may include a filter 120 for filtering water and / or particulate matter from the working fluid. In at least some embodiments, the filter 120 is provided for a dielectric fluid to provide removal of moisture and particulate matter. Monitoring of accumulated moisture in the filter 120 may also be provided to issue a maintenance alarm for replacing the filter tank when the water / moisture level in the containing tank is full.

[0067] Figure 6C This is a rear perspective view of the fluid subsystem of an immersion tank according to an embodiment of the present invention. Regarding... Figures 1-6B The descriptions of systems 100, 200, and immersion tank 106 apply to the description of the immersion tank fluid subsystem from a rear perspective view. As seen in this view, fluid subsystem 108 includes filter conduit 638 for guiding the working fluid from fluid conduit 626 through filter 120 (not visible in this view). Fluid subsystem 108 directs cooled working fluid from heat exchanger 109 to the bottom of the immersion tank, as indicated by cooled working fluid direction flow 639.

[0068] like Figure 6C As shown, the cooled source fluid directional flow 640 flows into the heat exchanger 109, and the heated source fluid directional flow 641 flows out of the heat exchanger 109. Further details of the heated working fluid directional flow 621 and the cooled working fluid directional flow 639 will be provided below. Figure 6D Detailed description is provided.

[0069] Figure 6D This is a cross-sectional side view of an immersion tank having a fluid subsystem according to an embodiment of the present invention. Regarding... Figures 1-6C The descriptions of systems 100, 200, and immersion tank 106 are applicable to the description of a side view of an immersion tank with a fluid subsystem. Figure 6D In the diagram, the flow of the heated working fluid is represented by the fluid direction flow 621, and the flow of the cooled working fluid is represented by the fluid direction flow 639.

[0070] After being cooled by the heat exchanger 109, the cooled working fluid flows through the working fluid conduit 626 and into the distribution manifold 628 of the immersion tank 106. The distribution manifold 628 provides directional routing for the fluid, guiding the cooled working fluid (which is cooled in the heat exchanger 109) to the bottom of the immersion tank 106. The cooled working fluid at the bottom of the immersion tank 106 then flows upward, passing between the payload 110 and / or other electronic equipment mounted in the immersion tank 106. Figure 6D In the embodiment shown, a single payload 110 is illustrated.

[0071] As the working fluid flows through the effective load, it moves towards the top of the immersion tank 106. This is due to both natural convection caused by the heating of the working fluid and forced flow caused by the distribution manifold 628. Figure 6D As shown, the heated working fluid leaves the immersion tank 106, passes through a screen 610 before entering one or more variable-speed pumps 116, and partially flows through a filter 120. Although in Figure 6D The cross-sectional view shown only shows one variable speed pump, but Figure 6B and 6C One or more variable speed pumps 116 are shown for use in some embodiments. The working fluid can be continuously partially filtered through filter 120 to remove particulates and moisture from the working fluid, keeping it clean and moisture-free. In some embodiments, filter 120 is a partial flow filter, and not all working fluid passes through filter 120 in each cycle.

[0072] To access the contents of the immersion tank 106 (i.e., the payload installed in the immersion tank), one can do so via the filling port ( Figure 6D Not shown in the image, the fill port can refer to... Figure 6B and 6C The filling port 210 shown discharges the working fluid from the immersion tank 106 through the bottom of the immersion tank 106. In an exemplary embodiment, the filling port is a single port that can be used to fill and discharge the working fluid. In at least some embodiments, the filling port may be located at or near the bottom surface of the immersion tank 106. In other embodiments, the filling port may be located anywhere in the immersion tank 106, such as on one or more sidewalls, through the top surface, on a secondary bottom surface (e.g., a surface near the bottom of the immersion tank 106 but not the bottommost surface), etc.

[0073] According to the various embodiments described herein, the payload is not air-cooled and no fan is used to cool the system. Removing the fan results in reduced ambient noise. Embodiments of this disclosure provide an immersion subsystem with airborne noise (ABN) of less than 40 dBA (e.g., less than in a quiet office).

[0074] Figure 7 This is a flowchart of a method according to an embodiment of the present invention. Specifically, Figure 7 This is a flowchart of a method for operating an immersion tank system. Method 700 includes inserting a payload into the immersion tank (702). The immersion tank can be connected to... Figures 1-6D The immersion tank 106 in the described system 100 and system 200 is similar. The method also includes allowing a source fluid from the external environment to flow through a pipe connected to the immersion tank to a heat exchanger (704). Allowing the source fluid to flow through the pipe to the heat exchanger can be used to cool the working fluid (706) using the heat exchanger and the source fluid.

[0075] The method further includes flowing a working fluid through one or more ports (708) of an immersion tank. Various embodiments of this disclosure may guide the fluid via alternative methods and various surfaces of the immersion tank. For example, according to various embodiments, the working fluid may flow through one or more ports along a bottom surface, a top surface, one or more sidewalls, or any combination thereof. In one exemplary embodiment, the working fluid fills the immersion tank from bottom to top, such that the working fluid displaces any excess air from the immersion tank, thereby filling the immersion tank with the working fluid and reducing splashing and bubbles. For example, the method includes filling an immersion tank, including a payload, to a predetermined level (710) with the working fluid through one or more ports. The method further includes transferring heat from the payload to the working fluid (712). The payload in the system generates heat during operation. Heat transfer between the payload and the working fluid may occur in a manner that will be understood by those skilled in the art.

[0076] In various embodiments, method 700 includes discharging gas and / or liquid from one or more vents (714) defining the top surface of an immersion tank. In some embodiments, the gas and / or liquid is discharged into an expansion tank coupled to the immersion tank. For example, the expansion tank may be in fluid communication with the immersion tank to receive any excess gas and / or liquid from the immersion tank. The method may include activating one or more pumps to direct the working fluid to a heat exchanger (716). The steps described above may be repeated until the payload is removed from the immersion tank. For example, to remove the payload from the immersion tank, the front inlet / outlet plate of the shock-absorbing cage surrounding the immersion tank may be removed. Pumps may be attached for discharging the immersion tank through one or more ports. The immersion tank may be slid out of the shock-absorbing cage, and the immersion tank cover may be removed to remove the payload from the immersion tank system. In some embodiments, the method includes discharging the working fluid from the immersion tank through the one or more ports before removing the payload from the immersion tank.

[0077] Method 700 may further include monitoring various components of the immersion tank system. The method may include using one or more control sensors within a shock-absorbing cage surrounding the immersion tank to monitor for leaks. In various embodiments, the one or more control sensors are leak detection sensors for detecting fluid within the shock-absorbing cage of the immersion tank system. The method may further include using a fluid quality sensor to monitor health indicators of the working fluid. The method may further include using a fluid level sensor to monitor the level of the working fluid in the expansion tank.

[0078] Various examples of this disclosure are provided below. As described below, any reference to a series of examples should be understood as a disjunctive reference to each of those examples (e.g., "Example 1-4" should be understood as "Example 1, Example 2, Example 3, or Example 4").

[0079] Example 1 is an immersion tank system comprising an external frame and an immersion tank disposed within the external frame. The immersion tank also includes one or more ports, one or more pumps, a control system, one or more sensors, and a heat exchanger.

[0080] Example 2 is the immersion tank system described in Example 1, wherein the one or more ports are configured to fill or drain the immersion tank.

[0081] Example 3 is an immersion tank system as described in any one of Examples 1-2, wherein the one or more ports are disposed on the surface of the immersion tank.

[0082] Example 4 is the immersion tank system described in Example 3, wherein the surface is the bottom surface of the immersion tank.

[0083] Example 5 is an immersion tank system as described in any one of Examples 1-4, wherein the one or more pumps are variable speed pumps.

[0084] Example 6 is an immersion tank system as described in any one of Examples 1-5, further comprising a sliding guide rail.

[0085] Example 7 is an immersion tank system as described in any one of Examples 1-6, further comprising a shock-absorbing cage disposed within the outer frame, the shock-absorbing cage including a front inlet / outlet cover.

[0086] Example 8 is the immersion tank system described in Example 7, wherein a shock-absorbing mount connected to the external frame provides shock absorption for the immersion tank.

[0087] Example 9 is the immersion tank system described in Example 7, wherein the immersion tank is configured to slide into and out of the shock-absorbing cage on a sliding guide rail.

[0088] Example 10 is an immersion tank system as described in any one of Examples 1-9, wherein the immersion tank further includes a sealed inlet / outlet cover.

[0089] Example 11 is an immersion tank system as described in any one of Examples 1-10, wherein at least one of the one or more sensors is a leak detection sensor.

[0090] Example 12 is an immersion tank system as described in any one of Examples 1-11, wherein at least one of the one or more sensors is a fluid level sensor.

[0091] Example 13 is an immersion tank system as described in any one of Examples 1-12, wherein at least one of the one or more sensors is a tank breather health status sensor.

[0092] Example 14 is an immersion tank system as described in any one of Examples 1-13, wherein at least one of the one or more sensors is a fluid quality sensor.

[0093] Example 15 is an immersion tank system as described in any one of Examples 1-14, wherein the heat exchanger comprises a brazed plate heat exchanger.

[0094] Example 16 is an immersion tank system as described in any one of Examples 1-15, wherein the immersion tank is configured to drain into an expansion tank.

[0095] Example 17 is a method for operating an immersion tank system adaptable to various environments. The method includes: a) inserting a payload into an immersion tank; b) allowing a source fluid from an external environment to flow through a conduit connected to the immersion tank to a heat exchanger; c) cooling a working fluid using the heat exchanger and the source fluid; d) allowing the working fluid to flow through one or more ports of the immersion tank; e) filling the immersion tank, including the payload, to a predetermined level with the working fluid through the one or more ports; f) transferring heat from the payload to the working fluid; g) venting gas and / or liquid from one or more vents defining the top surface of the immersion tank, wherein the gas and / or liquid is vented into an expansion tank connected to the immersion tank; and h) activating one or more variable-speed pumps to allow the working fluid to flow to the heat exchanger; and repeating steps b) to h) until the payload is removed from the immersion tank.

[0096] Example 18 is the method of Example 17, further comprising: using one or more control sensors in a shock-absorbing cage surrounding the immersion tank to monitor for leaks.

[0097] Example 19 is the method of any one of Examples 17-18, further comprising: monitoring health indicators of the working fluid using a fluid quality sensor.

[0098] Example 20 is the method of any one of Examples 17-19, further comprising: monitoring the level of the working fluid in the expansion tank using a fluid level sensor.

[0099] Example 21 is a method according to any one of Examples 17-20, further comprising: discharging the working fluid from the immersion tank through the one or more ports before removing the payload from the immersion tank.

[0100] Example 22 is a method for using a contact immersion tank system, comprising: providing an immersion tank. The immersion tank includes one or more ports, one or more variable-speed pumps, a control system, one or more control sensors, one or more health status sensors, and a heat exchanger. The method includes: removing a front inlet / outlet plate from a shock-absorbing cage surrounding the immersion tank; attaching a pump and discharging a working fluid from the immersion tank through the one or more ports; sliding the immersion tank out of the shock-absorbing cage; removing an immersion tank cover from the immersion tank; and removing a payload from the immersion tank system.

[0101] Example 23 is the method of Example 22, further comprising: using one or more control sensors in a shock-absorbing cage surrounding the immersion tank to monitor for leaks.

[0102] Example 24 is the method of any one of Examples 22-23, further comprising: monitoring health indicators of the working fluid using a fluid quality sensor.

[0103] Example 25 is the method of any one of Examples 22-24, further comprising: using a fluid level sensor to monitor the level of the working fluid in an expansion tank in fluid communication with the immersion tank.

[0104] Example 26 is a method according to any one of Examples 22-25, further comprising: discharging the working fluid from the immersion tank through the one or more ports before removing the payload from the immersion tank.

[0105] The scope of the technology described and claimed herein is not limited to the specific preferred embodiments disclosed herein, as these embodiments are intended to illustrate various aspects of the technology and not to limit it. Any equivalent embodiments are intended to fall within the scope of the technology. In fact, various modifications to the technology other than those shown and described herein will become apparent to those skilled in the art from the foregoing description. Such modifications are also intended to fall within the scope of the appended claims.

Claims

1. An immersion tank system, comprising: External framework; An immersion tank disposed within the outer frame, the immersion tank further comprising: One or more ports; One or more pumps; Control system; One or more sensors; and Heat exchanger.

2. The immersion tank system according to claim 1, wherein, The one or more ports are configured to fill or drain the immersion tank.

3. The immersion tank system according to claim 1, wherein, The one or more ports are disposed on the surface of the immersion tank.

4. The immersion tank system according to claim 3, wherein, The surface is the bottom surface of the immersion tank.

5. The immersion tank system according to claim 1, wherein, The one or more pumps are variable speed pumps.

6. The immersion tank system according to claim 1, further comprising a sliding guide rail.

7. The immersion tank system according to claim 1, further comprising: The shock-absorbing cage is installed within the external frame, and the shock-absorbing cage includes a front inlet / outlet cover.

8. The immersion tank system according to claim 7, wherein, The shock-absorbing mounts connected to the external frame provide vibration damping for the immersion tank.

9. The immersion tank system according to claim 7, wherein, The immersion tank is configured to slide into and out of the shock-absorbing cage on a sliding guide rail.

10. The immersion tank system according to claim 1, wherein, The immersion tank also includes sealed inlet and outlet covers.

11. The immersion tank system according to claim 1, wherein, At least one of the one or more sensors is a leak detection sensor.

12. The immersion tank system according to claim 1, wherein, At least one of the one or more sensors is a fluid level sensor.

13. The immersion tank system according to claim 1, wherein, At least one of the one or more sensors is a tank respirator health status sensor.

14. The immersion tank system according to claim 1, wherein, At least one of the one or more sensors is a fluid quality sensor.

15. The immersion tank system according to claim 1, wherein, The heat exchanger includes a brazed plate heat exchanger.

16. The immersion tank system according to claim 1, wherein, The immersion tank is configured to drain into the expansion tank.

17. A method for operating an immersion tank system adaptable to a variety of environments, comprising: a) Insert the payload into the immersion tank; b) Allow the source fluid from the external environment to flow to the heat exchanger through pipes connected to the immersion tank; c) Using the heat exchanger and the source fluid to cool the working fluid; d) Allow the working fluid to flow through one or more ports of the immersion tank; e) Fill the immersion tank, including the payload, to a predetermined level using the working fluid through one or more ports; f) Transferring heat from the payload to the working fluid; g) Discharge gas and / or liquid from one or more vents defining the top surface of the immersion tank, wherein the gas and / or liquid is discharged into an expansion tank connected to the immersion tank; as well as h) Start one or more variable speed pumps to allow the working fluid to flow to the heat exchanger; as well as Repeat steps b) to h) until the payload is removed from the immersion tank.

18. The method of claim 17, further comprising: One or more control sensors are used in the shock-absorbing cage surrounding the immersion tank to monitor for leaks.

19. The method of claim 17, further comprising: The health indicators of the working fluid are monitored using a fluid quality sensor.

20. The method of claim 17, further comprising using a fluid level sensor to monitor the level of the working fluid in the expansion tank.

21. The method of claim 17, further comprising: Before removing the payload from the immersion tank, the working fluid is discharged from the immersion tank through one or more ports.

22. A method for a contact immersion tank system, comprising: An immersion tank is provided, comprising: One or more ports; One or more variable speed pumps; Control system; One or more control sensors; One or more health status sensors; and Heat exchanger; Remove the front inlet / outlet plate of the shock absorber cage from the shock absorber cage surrounding the immersion tank; An attached pump discharges the working fluid from the immersion tank through one or more of the ports; Slide the immersion tank out of the shockproof cage; Remove the immersion tank cover from the immersion tank; and Remove the payload from the immersion tank system.

23. The method of claim 22, further comprising using one or more control sensors in a shock-absorbing cage surrounding the immersion tank to monitor for leakage.

24. The method of claim 22, further comprising: The health indicators of the working fluid are monitored using a fluid quality sensor.

25. The method of claim 22, further comprising: The level of the working fluid in the expansion tank, which is in fluid communication with the immersion tank, is monitored using a fluid level sensor.

26. The method of claim 22, further comprising: Before removing the payload from the immersion tank, the working fluid is discharged from the immersion tank through one or more ports.

Images