Cold storage device and air conditioning system

Abstract

The utility model relates to the technical field of air conditioners, in particular to a cold storage device and an air conditioning system, the cold storage device comprises a cold storage tank, a putting area is arranged in the cold storage tank, the cold storage device is suitable for switching between a normal state and a cold release state, in the normal state, the cold storage tank is filled with cold water, and in the cold release state, the cold storage tank is filled with cold water. And a refrigerating medium put in the putting area exchanges heat with water in the cold storage tank. The refrigerating medium circulates to refrigerate cold water in the cold release state, the water temperature in the cold storage tank is kept to continuously meet the water storage temperature requirement of the cold storage device, other intervention means are not needed for the interior of the machine room, and therefore long-acting stable refrigeration of the machine room is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of air conditioning, in particular to a cold storage device and an air conditioning system. Background Art

[0002] When a data center's chiller fails and cannot start, it can cause widespread and prolonged downtime in the entire computer room. Data centers use cold storage tanks to provide a 15-minute backup cooling time after a chiller failure. However, existing cold storage tanks have the following shortcomings:

[0003] 1) Cold storage tanks take up a lot of space and have a short backup time, which does not allow enough time for the refrigeration machine to handle faults;

[0004] 2) When the cooling system fails, axial fans, dry ice, or ice are placed in the computer room for auxiliary cooling. However, since there are many computer rooms and they are large in area, this requires a large number of personnel, which can easily lead to the neglect of other risks in the computer room and hinders computer room management and control.

[0005] 3) At the same time, the cooling effect of placing dry ice or ice in the computer room for auxiliary refrigeration is poor, and oxygen deficiency may occur over a long period of time. Utility Model Content

[0006] The present invention aims to solve at least one of the technical problems existing in the related art. To this end, the present invention proposes a cold storage device that circulates a refrigerant medium to cool cold water during a cooling state, maintaining the water temperature in the cold storage tank continuously meeting the water storage temperature requirements of the cold storage device. This eliminates the need for any other intervention within the computer room, thereby achieving long-term, stable cooling of the computer room.

[0007] The utility model also provides an air-conditioning system.

[0008] According to the first embodiment of the present invention, the cold storage device includes:

[0009] A cold storage tank is provided with a delivery area in the cold storage tank, and the cold storage device is suitable for switching between a normal state and a cooling state. In the normal state, the cold storage tank is filled with cold water. In the cooling state, the refrigerant medium placed in the delivery area exchanges heat with the water in the cold storage tank.

[0010] According to the cold storage device of the embodiment of the present invention, a delivery area is set in the cold storage tank. Under normal conditions, the cold storage tank is filled with cold water. Since the delivery area itself is interconnected with the interior of the cold storage tank, the delivery area is also filled with cold water. When the refrigeration system fails and the cold storage device needs to cool, that is, in the cooling state, a refrigerant is put into the delivery area to exchange heat with the cold water inside the cold storage tank. The cold water flows out from the interior of the cold storage tank to the air conditioner to cool the computer room, and then flows back to the interior of the cold storage tank by the air conditioner to exchange heat with the refrigerant again, so that the refrigerant medium circulates to cool the cold water in the cooling state, and keeps the water temperature in the cold storage tank continuously meeting the water storage temperature requirement of the cold storage device. No other intervention measures are required for the interior of the computer room, thereby achieving long-term and stable cooling of the computer room.

[0011] The cold storage device of the utility model extends the backup time by optimizing the structure of the cold storage tank. Under the premise of no additional increase in the volume of the cold storage tank, the cold storage capacity of the cold storage tank can be flexibly changed by adding a refrigerant medium. The cold storage device with flexible control of emergency response capability is introduced for the data center, which can expand the new refrigeration architecture of the data center, alleviate the disadvantages of dispersed layout of multiple computer rooms, chaotic emergency response, and high manpower input, optimize the cooling effect of the computer room, ensure the stability and reliability of the data center, and provide strong support for the stable operation and sustainable development of the data center.

[0012] According to one embodiment of the present invention, a partition is provided in the cold storage tank to separate the delivery area inside the cold storage tank, and a through hole is provided on the partition, which is suitable for connecting the delivery area with the interior of the cold storage tank.

[0013] According to one embodiment of the present invention, the partition cooperates with the inner wall of the cold storage tank to enclose the delivery area.

[0014] According to one embodiment of the present invention, the interior of the cold storage tank is divided into a water injection area and a gas area, the gas area is located above the water injection area, and the delivery area extends downward from the gas area to the water injection area.

[0015] According to one embodiment of the present invention, it further includes:

[0016] an adding chamber, the adding chamber being suitable for placing the refrigerant medium;

[0017] a delivery pipe, one end of which is connected to the storage tank, and the other end of which is passed through the cold storage tank and connected to the delivery area, so as to deliver the refrigerant medium in the addition bin to the delivery area;

[0018] a control valve, the control valve being arranged on the delivery pipe;

[0019] A fan is provided in the conveying pipe and is electrically connected to the control valve so as to control the start and stop of the fan according to the state of the control valve.

[0020] According to one embodiment of the present invention, it further includes:

[0021] a liquid inlet pipe, the liquid inlet pipe being inserted into the cold storage tank and extending upward along the height direction of the cold storage tank;

[0022] A liquid outlet pipe is inserted into the cold storage tank and is located below the liquid inlet pipe, and the liquid outlet pipe extends downward along the height direction of the cold storage tank.

[0023] According to one embodiment of the present invention, it further includes:

[0024] a first water distributor, the first water distributor being arranged inside the cold storage tank and being located between the end of the liquid inlet pipe and the inner wall of the cold storage tank;

[0025] The second water distributor is arranged inside the cold storage tank and is located between the end of the liquid outlet pipe and the inner wall of the cold storage tank.

[0026] According to one embodiment of the present invention, the delivery area extends downward from the top wall of the cold storage tank to between the first water distributor and the second water distributor.

[0027] According to an embodiment of the present invention, the delivery area is distributed in a ring shape and is arranged around the outside of the liquid inlet pipe.

[0028] According to the second embodiment of the present invention, the air conditioning system includes:

[0029] An air conditioner body, wherein the air conditioner body is provided with a water outlet and a water inlet;

[0030] In the cold storage device as described above, the water inlet pipe is connected to the water outlet, and the water outlet pipe is connected to the water inlet.

[0031] The above one or more technical solutions in the embodiments of the present invention have at least one of the following technical effects:

[0032] The cold storage device of the embodiment of the present invention is provided with a delivery area in the cold storage tank. Under normal conditions, the cold storage tank is filled with cold water. Since the delivery area itself is interconnected with the interior of the cold storage tank, the delivery area is also filled with cold water. When the refrigeration system fails and the cold storage device needs to cool, that is, in the cooling state, a refrigerant is put into the delivery area to exchange heat with the cold water inside the cold storage tank. The cold water flows out from the interior of the cold storage tank to the air conditioner to cool the computer room, and then flows back to the interior of the cold storage tank by the air conditioner to exchange heat with the refrigerant again, so that the refrigerant medium circulates to cool the cold water in the cooling state, and keeps the water temperature in the cold storage tank continuously meeting the water storage temperature requirement of the cold storage device. No other intervention measures are required for the interior of the computer room, thereby achieving long-term and stable cooling of the computer room.

[0033] The cold storage device of the utility model extends the backup time by optimizing the structure of the cold storage tank. Under the premise of no additional increase in the volume of the cold storage tank, the cold storage capacity of the cold storage tank can be flexibly changed by adding a refrigerant medium. The cold storage device with flexible control of emergency response capability is introduced for the data center, which can expand the new refrigeration architecture of the data center, alleviate the disadvantages of dispersed layout of multiple computer rooms, chaotic emergency response, and high manpower input, optimize the cooling effect of the computer room, ensure the stability and reliability of the data center, and provide strong support for the stable operation and sustainable development of the data center.

[0034] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or related technologies, the following briefly introduces the drawings required for use in the embodiments or related technical descriptions. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0036] Figure 1 This is a schematic structural diagram of a cold storage device provided by an embodiment of the present utility model;

[0037] Figure 2 It is a structural diagram of an air-conditioning system provided by an embodiment of the present utility model.

[0038] Reference numerals:

[0039] 100, cold storage tank; 110, delivery area; 120, partition; 130, water injection area; 140, gas area; 150, respirator;

[0040] 200, adding bin; 300, delivery pipe; 400, control valve; 500, fan; 600, liquid inlet pipe; 700, liquid outlet pipe; 800, first water distributor; 900, second water distributor; 1000, air conditioner body. DETAILED DESCRIPTION

[0041] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0042] In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as limiting the embodiments of the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance.

[0043] In the description of the embodiments of the present invention, it should be noted that, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of the present invention based on specific circumstances.

[0044] In the embodiments of the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, a first feature being "above," "above," or "above" a second feature may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below," "below," or "below" a second feature may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is lower in level than the second feature.

[0045] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiment of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples without contradiction.

[0046] like Figure 1 As shown, the cold storage device provided by the embodiment of the present invention includes a cold storage tank 100, and a delivery area 110 is provided in the cold storage tank 100. The cold storage device is suitable for switching between a normal state and a cooling state. In the normal state, the cold storage tank 100 is filled with cold water. In the cooling state, the refrigerant medium placed in the delivery area 110 exchanges heat with the water in the cold storage tank 100.

[0047] The cold storage device of the embodiment of the present invention is provided with a delivery area 110 in the cold storage tank 100. Under normal conditions, the cold storage tank 100 is filled with cold water. When the refrigeration system fails and the cold storage device needs to be cooled, that is, in the cooling state, a refrigerant is put into the delivery area 110 to exchange heat with the cold water inside the cold storage tank 100. The cold water flows out from the inside of the cold storage tank 100 to the air conditioner to cool the computer room, and then flows back to the inside of the cold storage tank 100 by the air conditioner to exchange heat with the refrigerant again, so that the refrigerant circulates to cool the cold water in the cooling state, and keeps the water temperature in the cold storage tank 100 to continuously meet the water storage temperature requirement of the cold storage device. No other intervention measures are required inside the computer room, thereby achieving long-term and stable cooling of the computer room.

[0048] The cold storage device of the present invention extends the backup time by optimizing the structure of the cold storage tank 100. Under the premise that the volume of the cold storage tank 100 does not increase, the cold storage capacity of the cold storage tank 100 can be flexibly changed by adding a refrigerant medium. The cold storage device of the present invention introduces a cold storage device with flexible control of emergency response capabilities for the data center, which can expand the new refrigeration architecture of the data center, alleviate the disadvantages of the dispersed layout of multiple computer rooms, chaotic emergency response, and high manpower input, optimize the cooling effect of the computer room, ensure the stability and reliability of the data center, and provide strong support for the stable operation and sustainable development of the data center.

[0049] According to one embodiment of the present invention, a partition 120 is provided within the cold storage tank 100 to separate a delivery area 110 within the cold storage tank 100. The partition 120 is provided with a through hole, which is suitable for connecting the delivery area 110 with the interior of the cold storage tank 100. In this embodiment, the delivery area 110 is separated from the interior of the cold storage tank 100 by the partition 120. The partition 120 is provided with a through hole, thereby maintaining communication between the partition 120 and the interior of the cold storage tank 100. That is, due to the action of the through hole, when the cold storage tank 100 is filled with cold water, the delivery area 110 is also filled with cold water. When a refrigerant is added to the delivery area 110, the refrigerant can transfer cold energy with the cold water in the delivery area 110 and the cold water in other areas within the cold storage tank 100.

[0050] In other embodiments, the partition 120 may also be a component made of metal material only, and the delivery area 110 may not be connected to the interior of the cold storage tank 100. Through the heat conduction function of the metal material, heat exchange can be performed between the refrigerant medium in the delivery area 110 and the cold water inside the cold storage tank 100.

[0051] In this embodiment, the separator 120 can be made of a stainless steel isolation net, the mesh of the isolation net is through holes, and the number of meshes of the isolation net is 10.

[0052] According to one embodiment of the present invention, a divider 120 cooperates with the inner wall of the cold storage tank 100 to enclose a delivery area 110. In this embodiment, the divider 120 is located close to the inner wall of the cold storage tank 100 and maintains a certain distance therefrom. The space between the divider 120 and the inner wall of the cold storage tank 100 at this distance defines the delivery area 110. This allows the delivery area 110 to be centrally located on the inner wall of the cold storage tank 100.

[0053] The edge of the partition 120 is connected to the inner wall of the cold storage tank 100 , which can save the amount of the partition 120 on the one hand, and further integrate and simplify the device structure on the other hand, making it easy to manufacture.

[0054] According to one embodiment of the present invention, the interior of the cold storage tank 100 is divided into a water injection area 130 and a gas area 140. The gas area 140 is located above the water injection area 130, and the delivery area 110 extends downward from the gas area 140 into the water injection area 130. In this embodiment, the interior of the cold storage tank 100 is divided into the gas area 140 and the water injection area 130 from top to bottom. That is, the upper space inside the cold storage tank 100 constitutes the gas area 140, and all other spaces constitute the water injection area 130. The boundary between the gas area 140 and the water injection area 130 is the water level of the cold water inside the cold storage tank 100 during normal operation. Therefore, the sizes of the gas area 140 and the water injection area 130 are determined based on the actual water level of the cold water inside the cold storage tank 100. The upper portion of the delivery area 110 is located in the gas area 140 , and then extends downward along the height direction of the cold storage tank 100 into the water injection area 130 , so that the middle and lower portions of the delivery area 110 are both located in the water injection area 130 .

[0055] The volatilized gas from the refrigerant in the delivery area 110 can enter the gas zone 140 through the upper portion of the delivery area 110, filling the upper space of the cold storage tank 100 with the volatilized gas. When the refrigerant is dry ice, the dry ice can volatilize CO2, replacing the existing nitrogen sealing device. At the same time, the refrigerant in the delivery area 110 can exchange heat with the cold water in the space located in the water injection area 130, thereby cooling the cold water.

[0056] In this embodiment, a breather 150 is provided on the top of the cold storage tank 100. The breather 150 is connected to the upper space of the cold storage tank 100. The gas volatilized by the refrigerant medium can be discharged through the breather 150. The breather 150 is connected to the atmosphere and is used to balance the internal and external pressures of the cold storage tank 100 when the water level in the cold storage tank 100 changes.

[0057] According to one embodiment of the present invention, the cold storage device also includes an addition bin 200, a delivery pipe 300, a control valve 400 and a fan 500. The addition bin 200 is suitable for placing a refrigerant medium; one end of the delivery pipe 300 is connected to the storage tank, and the other end is passed through the cold storage tank 100 and connected to the delivery area 110 to deliver the refrigerant medium in the addition bin 200 into the delivery area 110; the control valve 400 is arranged on the delivery pipe 300; the fan 500 is arranged on the delivery pipe 300, and the fan 500 is electrically connected to the control valve 400 to control the start and stop of the fan 500 according to the state of the control valve 400.

[0058] In this embodiment, the cold storage device primarily comprises a cold storage tank 100, a refilling chamber 200, a delivery pipe 300, a control valve 400, and a fan 500. The refilling chamber 200 is connected to a delivery area 110 within the cold storage tank 100 via the delivery pipe 300. An operator can add refrigerant to the refilling chamber 200, which is then delivered to the delivery area 110 via the delivery pipe 300. A control valve 400 is installed on the delivery pipe 300 before it enters the cold storage tank 100. The fan 500 provides power for the delivery pipe 300 to transport the refrigerant from the refilling chamber 200 to the delivery area 110.

[0059] The refrigerant dosage is indicated by the water temperature in the cold storage tank 100. By setting an alarm threshold for the water temperature in the cold storage tank 100, the opening and closing of the control valve 400 is controlled. Simultaneously, the control valve 400 is linked to the fan 500, which in turn starts and stops the fan 500. When the water temperature in the cold storage tank 100 reaches the alarm threshold, the control valve 400 is opened. Once fully opened, the fan 500 starts dosing the refrigerant. The amount of dry ice used is then determined by the exhaust volume from the upper portion of the respirator 150.

[0060] The addition of refrigerant is controlled according to the average design temperature N (7~21℃) of the cold storage tank 100. When the temperature reaches N+2℃, the control valve 400 is started, and the valve is fully opened to link the conveying fan 500. When the average temperature of the cold storage tank 100 reaches the set value N, the conveying fan 500 is stopped and the control valve 400 is closed. The fan 500 starts to convey and runs for at least 2 minutes to avoid frequent start and stop of the fan 500.

[0061] By providing a refill bin 200, a delivery pipe 300, a control valve 400, and a fan 500, the refrigerant can be automatically added to the delivery area 110, eliminating manual operation and enabling convenient refrigerant addition. This alleviates the drawbacks of dispersed deployment of multiple computer rooms, resulting in complex emergency response and high personnel requirements. Furthermore, the automation of emergency response shortens response time, improves response effectiveness, optimizes computer room cooling performance, ensures the stability and reliability of the data center, and provides strong support for its stable operation and sustainable development.

[0062] Correspondingly, a temperature detection device can be installed inside the cold storage tank 100 to detect the water temperature inside the cold storage tank 100. The temperature of the water inside the tank is monitored by the platform to determine the need for adding refrigerant, ensuring that the cooling temperature meets the required level. The refrigerant added to the refilling chamber 200 can be selected based on actual needs and can be dry ice or ice cubes.

[0063] According to one embodiment of the present invention, the cold storage device also includes a liquid inlet pipe 600 and a liquid outlet pipe 700. The liquid inlet pipe 600 is inserted into the cold storage tank 100 and extends upward along the height direction of the cold storage tank 100; the liquid outlet pipe 700 is inserted into the cold storage tank 100 and is located below the liquid inlet pipe 600, and the liquid outlet pipe 700 extends downward along the height direction of the cold storage tank 100.

[0064] In this embodiment, the cold storage device primarily comprises a cold storage tank 100, a refilling chamber 200, a delivery pipe 300, a control valve 400, a fan 500, a liquid inlet pipe 600, and a liquid outlet pipe 700. The liquid inlet pipe 600 delivers cold water into the cold storage tank 100, while the liquid outlet pipe 700 delivers the cold water out of the cold storage tank 100. The corresponding liquid inlet and outlet mounting holes of the cold storage tank 100 are both located at the bottom of the cold storage tank 100, with the liquid outlet mounting hole located below the liquid inlet mounting hole. The liquid inlet pipe extends upward along the height of the cold storage tank 100 after passing through the liquid inlet mounting hole. The outlet pipe's opening within the cold storage tank 100 is located below the normal operating water level of the cold water. The outlet pipe 700 extends downward along the height of the cold storage tank 100 after passing through the outlet mounting hole, but its opening within the cold storage tank 100 is a certain distance from the bottom of the cold storage tank 100.

[0065] The liquid supply pipe delivers cold water into the cold storage tank 100. After flowing out of the liquid supply pipe, the cold water flows from top to bottom within the cold storage tank 100, gradually accumulating upward from the bottom of the cold storage tank 100. During this process, the cold water can exchange heat with the refrigerant in the delivery area 110, reaching the required cooling temperature. The cold water at the bottom of the cold storage tank 100 can then flow out of the cold storage tank 100 through the liquid outlet pipe 700 to cool the machine room. The liquid inlet pipe 600 extends upward to approach the top of the cold storage tank 100, and the liquid outlet pipe 700 extends downward to approach the bottom of the cold storage tank 100. The liquid supply and outlet mounting holes are concentrated at the bottom of the cold storage tank 100. This is to maximize the flow path of the cold water within the cold storage tank 100 and improve the heat exchange and cooling effect of the cold water.

[0066] According to one embodiment of the present invention, the cold storage device also includes a first water distributor 800 and a second water distributor 900. The first water distributor 800 is arranged inside the cold storage tank 100 and is located between the end of the liquid inlet pipe 600 and the inner wall of the cold storage tank 100; the second water distributor 900 is arranged inside the cold storage tank 100 and is located between the end of the liquid outlet pipe 700 and the inner wall of the cold storage tank 100.

[0067] In this embodiment, the first water distributor 800 is located at the top of the cold storage tank 100, and the first water distributor 800 is annular. The inner edge of the first water distributor 800 is connected to the liquid inlet pipe 600, and the outer edge of the first water distributor 800 is connected to the inner wall of the cold storage tank 100. The position of the first water distributor 800 is slightly lower than the pipe mouth of the liquid inlet pipe 600. When the cold water is discharged from the liquid inlet pipe 600, it passes through the first water distributor 800 during the downward flow, so that the water flow is evenly distributed. The second water distributor 900 is located at the bottom of the cold storage tank 100, and the second water distributor 900 is annular. The inner edge of the second water distributor 900 is connected to the liquid outlet pipe 700, and the outer edge of the second water distributor 900 is connected to the inner wall of the cold storage tank 100. The position of the second water distributor 900 is slightly higher than the pipe mouth of the liquid outlet pipe 700. When the cold water is discharged from the liquid inlet pipe 600, it first passes through the first water distributor 800 in the process of flowing downward, flows to the bottom of the cold storage tank 100, and then passes through the second water distributor 900, and then gathers to the bottom of the cold storage tank 100 and flows out from the liquid outlet pipe 700. The second water distributor 900 makes the water flow evenly distributed again, thereby enhancing the water distribution effect.

[0068] According to one embodiment of the present invention, the delivery area 110 extends downward from the top wall of the cold storage tank 100 to between the first water distributor 800 and the second water distributor 900. In this embodiment, the delivery area 110 is centrally located at the upper portion of the cold storage tank 100. To facilitate communication with the delivery pipe 300, the upper end of the delivery area 110 is connected to the top wall of the cold storage tank 100. Once the delivery pipe 300 is connected to the top wall opening of the energy storage pipe, communication with the delivery area 110 is achieved without further entering the cold storage tank 100. The delivery area 110 extends downward from the top wall of the cold storage tank 100 along the height of the cold storage tank 100 to below the first water distributor 800, but does not reach the second water distributor 900, that is, it extends to the middle of the cold storage tank 100.

[0069] It is understandable that the extension range of the delivery area 110 can be adjusted according to actual conditions.

[0070] According to one embodiment of the present invention, the delivery area 110 is annularly distributed and surrounds the outside of the liquid inlet pipe 600. In this embodiment, the delivery area 110 is annular and distributed throughout the circumference of the sidewall of the cold storage tank 100. Due to its distribution height, it is mainly located outside the liquid inlet pipe 600, further expanding the distribution range of the delivery area 110 and improving the heat exchange effect between the refrigerant and the cold water. The cold storage device with flexible emergency response capacity adds an annular area along the upper half of the original cold storage tank 100 to store the refrigerant.

[0071] like Figure 2As shown, an embodiment of the present invention also provides an air-conditioning system, including an air-conditioning body 1000 and a cold storage device as in the above embodiment, the air-conditioning body 1000 is provided with a water outlet and a water inlet; the water inlet pipe is connected to the water outlet, and the water outlet pipe is connected to the water inlet.

[0072] The air conditioning system of this embodiment provides a novel cooling architecture for data centers, which can be used as a primary cooling architecture or as a backup cooling method. The liquid inlet pipe 600 of the cold storage tank 100 is connected to the cooling outlet of the air conditioner body 1000, and the liquid outlet pipe 700 of the cold storage tank 100 is connected to the cooling inlet of the air conditioner body 1000. When the refrigeration system fails and the cold storage device needs to be cooled, that is, in the cooling state, a refrigerant medium is put into the delivery area 110 to exchange heat with the cold water inside the cold storage tank 100. The cold water flows out from the inside of the cold storage tank 100 and flows to the water inlet of the air-conditioning body 100 through the liquid outlet pipe 700 to cool the computer room. Then it flows back from the water outlet of the air-conditioning body 1000 to the liquid inlet pipe 600 and flows to the inside of the cold storage tank 100 to exchange heat with the refrigerant medium again, so that the refrigerant medium circulates to cool the cold water in the cooling state, and keeps the water temperature in the cold storage tank 100 to continuously meet the water storage temperature requirements of the cold storage device. No other intervention measures are required inside the computer room, thereby achieving long-term and stable cooling of the computer room.

[0073] Finally, it should be noted that the above embodiments are intended only to illustrate the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the embodiments, those skilled in the art will appreciate that various combinations, modifications, or equivalent substitutions of the technical solutions of the present invention do not depart from the spirit and scope of the technical solutions of the present invention and are intended to be encompassed by the claims of the present invention.

Claims

1. A cold storage device, characterized in that: include: A cold storage tank (100) is provided with a delivery area (110) in the cold storage tank (100), and the cold storage device is suitable for switching between a normal state and a cooling state. In the normal state, the cold storage tank (100) is filled with cold water. In the cooling state, the refrigerant medium delivered to the delivery area (110) exchanges heat with the water in the cold storage tank (100).

2. The cold storage device according to claim 1, characterized in that A partition (120) is provided in the cold storage tank (100) to separate the delivery area (110) inside the cold storage tank (100); a through hole is provided on the partition (120), and the through hole is suitable for connecting the delivery area (110) with the interior of the cold storage tank (100).

3. The cold storage device according to claim 2, characterized in that The partition (120) cooperates with the inner wall of the cold storage tank (100) to enclose the delivery area (110).

4. The cold storage device according to claim 1, wherein: The interior of the cold storage tank (100) is divided into a water injection area (130) and a gas area (140), the gas area (140) is located above the water injection area (130), and the delivery area (110) extends downward from the gas area (140) into the water injection area (130).

5. The cold storage device according to claim 1, wherein: Also includes: an adding chamber (200), the adding chamber (200) being suitable for placing the refrigerant medium; a delivery pipe (300), one end of the delivery pipe (300) being connected to the storage tank, and the other end of the delivery pipe (300) being passed through the cold storage tank (100) and connected to the delivery area (110), so as to deliver the refrigerant medium in the addition chamber (200) to the delivery area (110); a control valve (400), the control valve (400) being arranged on the delivery pipe (300); A fan (500) is provided in the delivery pipe (300), and the fan (500) is electrically connected to the control valve (400) so as to control the start and stop of the fan (500) according to the state of the control valve (400).

6. The cold storage device according to any one of claims 1 to 5, characterized in that: Also includes: a liquid inlet pipe (600), the liquid inlet pipe (600) being inserted into the interior of the cold storage tank (100) and extending upward along the height direction of the cold storage tank (100); A liquid outlet pipe (700) is inserted into the cold storage tank (100) and is located below the liquid inlet pipe (600), and the liquid outlet pipe (700) extends downward along the height direction of the cold storage tank (100).

7. The cold storage device according to claim 6, characterized in that Also includes: a first water distributor (800), the first water distributor (800) being arranged inside the cold storage tank (100) and located between the end of the liquid inlet pipe (600) and the inner wall of the cold storage tank (100); A second water distributor (900) is provided inside the cold storage tank (100) and is located between the end of the liquid outlet pipe (700) and the inner wall of the cold storage tank (100).

8. The cold storage device according to claim 7, characterized in that The delivery area (110) extends downward from the top wall of the cold storage tank (100) to between the first water distributor (800) and the second water distributor (900).

9. The cold storage device according to claim 7, characterized in that The delivery area (110) is distributed in a ring shape and is arranged around the outside of the liquid inlet pipe (600).

10. An air conditioning system, characterized in that: include: An air conditioner body (1000), wherein the air conditioner body (1000) is provided with a water outlet and a water inlet; The cold storage device according to any one of claims 7 to 9, wherein the liquid inlet pipe is connected to the water outlet, and the liquid outlet pipe is connected to the water inlet.

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