TW202249575A - Gas storage device and two-phase immersion cooling system - Google Patents

Abstract

A gas storage device includes a casing, a lift platform, a lift mechanism, a driving mechanism, an exhaust valve and a gas joint. The lift platform is movably disposed in the casing, wherein a gas storage space is between a bottom of the casing and the lift platform. The lift mechanism is disposed in the casing and connected to the lift platform. The driving mechanism is connected to the lift mechanism. The driving mechanism drives the lift mechanism to drive the lift platform to move. The exhaust valve is connected to the lift platform and communicates with the gas storage space. The gas joint is connected to the bottom of the casing and communicates with the gas storage space.

Description

Gas storage device and two-phase immersion cooling system

The present invention relates to a gas storage device and a two-phase immersion cooling system, in particular to a gas storage device with pressure regulation function and a two-phase immersion cooling system equipped with the gas storage device.

Two-phase immersion cooling systems use a dielectric fluid to move heat away from electronic components through a phase change. Two-phase immersion cooling systems typically have a gas storage device that temporarily holds excess dielectric liquid vapor. Generally speaking, the gas in the cooling system can only flow passively through the pressure difference between the cooling tank and the gas storage device (or the outside world). The valve or the pipeline connected with the gas storage device reduces the pressure in the cooling tank to close to the external pressure. The pressure in the cooling tank cannot be lowered lower, which increases the possibility of leakage of the dielectric liquid vapor in the cooling tank.

The present invention provides a gas storage device with pressure regulation function and a two-phase immersion cooling system equipped with the gas storage device to solve the above problems.

According to one embodiment, the gas storage device of the present invention includes a casing, a lifting platform, a lifting mechanism, a driving mechanism, an exhaust valve and a gas delivery pipe. The lifting platform is movably arranged in the casing, and one of the gas storage spaces is between the bottom of the casing and the lifting platform. The lifting mechanism is arranged in the housing and connected to the lifting platform. The driving mechanism is connected to the lifting mechanism. The driving mechanism drives the lifting mechanism to drive the lifting platform to move. The exhaust valve is connected to the lifting platform, and the exhaust valve communicates with the air storage space. The air delivery pipe is connected to the bottom of the casing, and the air delivery pipe communicates with the air storage space.

According to another embodiment, the two-phase immersion cooling system of the present invention comprises the gas storage device as described above and a cooling tank. The cooling tank is connected to the gas pipeline.

To sum up, the gas storage device of the present invention can control the movement of the lifting platform through the driving mechanism and the lifting mechanism, and control the opening and closing of the exhaust valve and the gas delivery pipe, so that the gas moves into or out of the cooling tank to control the pressure in the cooling tank. Since the movement of the lifting platform is driven by the driving mechanism, the present invention can reduce the pressure in the cooling tank regardless of whether the pressure in the cooling tank is greater than the external pressure. The cooling tank is compressed by a larger external pressure to narrow the gap, which can reduce the leakage of the dielectric liquid vapor in the cooling tank. Of course, the present invention can also increase the pressure in the cooling tank to normal pressure or a constant value according to actual needs.

The advantages and spirit of the present invention can be further understood through the following detailed description of the invention and the accompanying drawings.

Please refer to Figures 1 to 5, Figure 1 is a perspective view of a gas storage device 10 according to an embodiment of the present invention, Figure 2 is an exploded view of the gas storage device 10 in Figure 1, and Figure 3 is an installation The cross-sectional view of the two-phase immersion cooling system 1 provided with the gas storage device 10 in Fig. 1, Fig. 4 is a cross-sectional view after the lifting platform 102 in Fig. 3 moves upward, and Fig. 5 is the cross-sectional view in Fig. 3 The sectional view of the lifting platform 102 after moving downward.

As shown in FIG. 1 to FIG. 3 , the gas storage device 10 includes a casing 100 , a lifting platform 102 , a lifting mechanism 104 , a driving mechanism 106 , an exhaust valve 108 and a gas delivery pipe 110 . The lifting platform 102 is movably disposed in the casing 100 , and a gas storage space 112 is interposed between the bottom 1000 of the casing 100 and the lifting platform 102 . The lifting mechanism 104 is disposed in the casing 100 and connected to the lifting platform 102 . The driving mechanism 106 is connected to the lifting mechanism 104 . The driving mechanism 106 is used to drive the lifting mechanism 104 to drive the lifting platform 102 to move up and down. The exhaust valve 108 is connected to the lifting platform 102 , and the exhaust valve 108 communicates with the air storage space 112 . The air delivery pipe 110 is connected to the bottom of the casing 10 , and the air delivery pipe 110 communicates with the air storage space 112 .

As shown in FIG. 3 , the two-phase immersion cooling system 1 includes the above-mentioned gas storage device 10 and a cooling tank 12 . The cooling tank 12 is connected to the gas delivery pipe 110 of the gas storage device 10 . The cooling tank 12 stores a dielectric liquid 120 with a low boiling point. Electronic components (not shown in the figure) can be immersed in the dielectric liquid 120 . The dielectric liquid 120 evaporates into vapor after absorbing heat generated by the electronic components. The steam enters the casing 100 of the gas storage device 10 through the gas delivery pipe 110 and is stored in the gas storage space 112 .

In this embodiment, the gas storage device 10 may further include a sealing gasket 114 , which is sleeved around the lifting platform 102 and abuts against the inner wall of the casing 100 . The sealing gasket 114 can prevent the steam from leaking to the outside, and prevent outside air from entering the gas storage space 112 . In this embodiment, there are two sealing gaskets 114 sleeved around the lifting platform 102 , but it is not limited thereto. The number of sealing gaskets 114 can be determined according to actual applications. Sealing gasket 114 may be an O-ring or other similar element.

In this embodiment, the gas storage device 10 may further include a condensing device 116 disposed in the gas delivery pipe 110 . The condensing device 116 can reduce the temperature of the steam passing through the gas pipeline 110 , so that the steam can be condensed into a dielectric liquid, and then flow back to the cooling tank 12 for recovery. Thereby, the loss of dielectric liquid vapor can be reduced. In addition, the bottom 1000 of the casing 100 may have an inclined surface 1002 , wherein the inclined surface 1002 is inclined toward the gas delivery pipe 110 . After the dielectric liquid vapor condenses into liquid in the gas storage space 112 , the liquid can flow back to the cooling tank 12 along the slope 1002 .

In this embodiment, the gas storage device 10 may further include an air intake valve 118 connected to the gas delivery pipe 110 . The intake valve 118 is used as a switch for the gas delivery pipe 110 .

In this embodiment, the driving mechanism 106 may include a motor 1060 and a moving part 1062 . The motor 1060 is connected to the moving part 1062 , and the moving part 1062 is connected to the lifting mechanism 104 . The motor 1060 is used to drive the moving part 1062 to move forward and backward, so that the moving part 1062 drives the lifting mechanism 104 to drive the lifting platform 102 to move up and down.

In this embodiment, the lifting mechanism 104 can be a scissors linkage combination. Further, the lifting mechanism 104 may include a first support 1040 and a second support 1042 . In addition, the lifting platform 102 has a sliding slot 1020 . The first supporting member 1040 is pivotally connected to the second supporting member 1042 . Two ends of the first supporting member 1040 are pivotally connected to the moving member 1062 and the lifting platform 102 . Two ends of the second supporting member 1042 are pivotally connected to the top 1004 of the casing 100 and the sliding slot 1020 of the lifting platform 102 . Thus, when the motor 1060 drives the moving part 1062 to move back and forth, the moving part 1062 will drive the lifting mechanism 104 to drive the lifting platform 102 to move up and down.

The present invention can reduce the pressure of the cooling tank 12 to a specific value through the operation of the gas storage device, even lower than the external pressure. Firstly, the intake valve 118 is opened, the exhaust valve 108 is closed, and the lifting mechanism 104 is driven by the driving mechanism 106 to drive the lifting platform 102 to move upward (as shown in Figure 4), so that the gas in the cooling tank 12 flows to the gas storage Space 112. In this embodiment, the top 1004 of the casing 100 has an opening 1006 , wherein the position of the opening 1006 corresponds to the position of the exhaust valve 118 . As shown in FIG. 4 , after the lifting platform 102 moves upward, the exhaust valve 118 passes through the opening 1006 to prevent interference between the exhaust valve 118 and the top 1004 of the casing 100 . Then, close the intake valve 118, open the exhaust valve 108, and drive the lifting mechanism 104 to drive the lifting platform 102 to move downward through the driving mechanism 106 (as shown in Figure 5), so that the gas in the gas storage space 112 is discharged from the shell Body 100. Next, the above steps are repeated to make the pressure of the cooling tank 12 lower than the external pressure. By compressing the cooling tank 12 with a larger external pressure to narrow the gap, the leakage of the dielectric liquid vapor in the cooling tank 12 can be reduced.

When it is necessary to increase the pressure in the cooling tank 12 to normal pressure, the intake valve 118 can be opened, and the lifting mechanism 104 is driven by the driving mechanism 106 to drive the lifting platform 102 to move downward, so that the gas in the gas storage space 112 flows to the cooling tank. Slot 12. If more gas needs to be replenished, the exhaust valve 108 can be opened to introduce outside gas into the gas storage space 112 so that the internal and external pressures of the cooling tank 12 are balanced.

If it is necessary to make the pressure in the cooling tank 12 rise to a constant value, the exhaust valve 108 can be opened, the intake valve 118 can be closed, and the lifting mechanism 104 can be driven by the driving mechanism 106 to drive the lifting platform 102 to move upward, so as to suck the outside air into the storage tank. air space 112 . Next, the exhaust valve 108 is closed, the intake valve 118 is opened, and the lifting mechanism 104 is driven by the driving mechanism 106 to drive the lifting platform 102 to move downward, so as to inject the gas in the gas storage space 112 into the cooling tank 12 . Next, the above steps are repeated to increase the pressure of the cooling tank 12 to a constant value.

To sum up, the gas storage device of the present invention can control the movement of the lifting platform through the driving mechanism and the lifting mechanism, and control the opening and closing of the exhaust valve and the gas delivery pipe, so that the gas moves into or out of the cooling tank to control the pressure in the cooling tank. Since the movement of the lifting platform is driven by the driving mechanism, the present invention can reduce the pressure in the cooling tank regardless of whether the pressure in the cooling tank is greater than the external pressure. The cooling tank is compressed by a larger external pressure to narrow the gap, which can reduce the leakage of the dielectric liquid vapor in the cooling tank. Of course, the present invention can also increase the pressure in the cooling tank to normal pressure or a constant value according to actual needs.

In an embodiment of the present invention, the two-phase immersion cooling system of the present invention can be applied to a server, and the server can be used for artificial intelligence (English: Artificial Intelligence, AI for short) computing, edge computing (edge computing) ), it can also be used as a 5G server, cloud server or Internet of Vehicles server. The above descriptions are only preferred embodiments of the present invention, and all equivalent changes and modifications made according to the scope of the patent application of the present invention shall fall within the scope of the present invention.

1: Two-phase immersion cooling system 10: Gas storage device 12: cooling tank 100: shell 102: Lifting platform 104: Lifting mechanism 106: Driving mechanism 108: exhaust valve 110: air pipe 112: gas storage space 114: Gasket 116: Condensing device 118: intake valve 120: Dielectric fluid 1000: bottom 1002: Bevel 1004:top 1006: opening 1020: Chute 1040: the first support 1042: the second support 1060: motor 1062: Moving parts

Fig. 1 is a perspective view of a gas storage device according to an embodiment of the present invention. Figure 2 is an exploded view of the gas storage device in Figure 1. Fig. 3 is a cross-sectional view of a two-phase immersion cooling system equipped with the gas storage device in Fig. 1. Fig. 4 is a cross-sectional view of the lifting platform in Fig. 3 after it moves upwards. Fig. 5 is a cross-sectional view of the lifting platform in Fig. 3 after moving downwards.

1: Two-phase immersion cooling system

10: Gas storage device

12: cooling tank

100: shell

102: Lifting platform

104: Lifting mechanism

106: Driving mechanism

108: exhaust valve

110: air pipe

112: gas storage space

114: Gasket

116: Condensing device

118: intake valve

120: Dielectric fluid

1000: bottom

1002: Bevel

1004: top

1006: opening

1020: Chute

1040: the first support

1042: the second support

1060: motor

1062: Moving parts

Claims (10)

A gas storage device, comprising: a shell; A lifting platform is movably arranged in the casing, and a gas storage space is between the bottom of the casing and the lifting platform; A lifting mechanism is arranged in the housing and connected to the lifting platform; A driving mechanism, connected to the lifting mechanism, the driving mechanism drives the lifting mechanism to drive the lifting platform to move; an exhaust valve connected to the lifting platform, the exhaust valve communicated with the air storage space; and An air delivery pipe is connected to the bottom of the casing, and the air delivery pipe communicates with the air storage space. The gas storage device according to claim 1 further includes a sealing gasket, which is sleeved around the lifting platform and abuts against the inner wall of the housing. The gas storage device according to claim 1, wherein the top of the casing has an opening, and the position of the opening corresponds to the position of the exhaust valve. The gas storage device according to claim 1, wherein the bottom of the casing has an inclined surface, and the inclined surface is inclined toward the direction of the gas delivery pipe. The gas storage device as described in Claim 1 further includes a condensing device disposed in the gas delivery pipe. The gas storage device according to claim 1, wherein the driving mechanism includes a motor and a moving part, the motor is connected to the moving part, the moving part is connected to the lifting mechanism, and the motor drives the moving part to move, so that the The moving part drives the lifting mechanism to drive the lifting platform to move. The gas storage device according to claim 6, wherein the lifting mechanism includes a first support and a second support, the lifting platform has a chute, the first support is pivotally connected to the second support, Two ends of the first support member are pivotally connected to the moving member and the lifting platform, and two ends of the second support member are pivotally connected to the top of the housing and the slide groove. The gas storage device as claimed in claim 1, wherein the lifting mechanism is a scissors-type linkage combination. The gas storage device as described in claim 1 further includes an air inlet valve connected to the gas delivery pipe. A two-phase immersion cooling system comprising: The gas storage device as described in any one of Claims 1 to 9; and A cooling tank is connected to the gas delivery pipe.

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