A heat exchange system

Abstract

The utility model discloses a heat exchange system relates to according to center heat dissipation technical field, including refrigerant distribution subassembly and with refrigerant distribution subassembly intercommunication's multiple liquid cooling subassembly, and refrigerant distribution subassembly is used for to each liquid cooling subassembly delivery coolant, and liquid cooling subassembly is used for cooling heat source equipment, and refrigerant distribution subassembly includes liquid distribution pipe and collecting liquid pipe, and is provided with a plurality of exports on liquid distribution pipe, and every export is connected with the entrance of a liquid cooling subassembly, and is provided with a plurality of inlets on collecting liquid pipe, and every inlet is connected with the export of a liquid cooling subassembly, and multiple temperature control components are set up one to one with multiple liquid cooling subassembly, and temperature control component sets up between liquid cooling subassembly and the corresponding inlet on collecting liquid pipe, and temperature control component is used for controlling the on-off of the passage between liquid cooling subassembly and the corresponding inlet on collecting liquid pipe.

Description

Technical Field

[0001] This utility model relates to the field of data center heat dissipation technology, specifically to a heat exchange system. Background Technology

[0002] The heat exchange system on the secondary side of the server is a key component near the end of the server in the liquid cooling architecture of the data center. It is mainly responsible for accurately distributing the coolant (such as water or ethylene glycol solution) to each server rack and collecting the return liquid after heat absorption. It is a bridge connecting the cold source side and the heat-generating end of the server.

[0003] In existing heat exchange systems, when a server or heat source in the system is not working, the system flow still passes through that device, and the pump of the secondary side CDU (Coolant Distribution Unit) does useless work. Utility Model Content

[0004] This invention aims to solve one of the technical problems in related technologies to a certain extent. Therefore, this invention provides a heat exchange system.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a heat exchange system, comprising a refrigerant distribution component and a plurality of liquid cooling components connected to the refrigerant distribution component, wherein the refrigerant distribution component is used to supply coolant to each of the liquid cooling components, and the liquid cooling components are used to cool heat source equipment; the system also includes a plurality of temperature control components; the refrigerant distribution component includes a distribution pipe and a collection pipe; the distribution pipe is provided with a plurality of outlets, each of which is connected to an inlet of one of the liquid cooling components; the collection pipe is provided with a plurality of inlets, each of which is connected to an outlet of one of the liquid cooling components; the plurality of temperature control components are arranged one-to-one with the plurality of liquid cooling components, and the temperature control components are arranged between the liquid cooling components and the corresponding inlets on the collection pipe, and the temperature control components are used to control the opening and closing of the passage between the liquid cooling components and the corresponding inlets on the collection pipe.

[0006] The present invention has the following advantages: by setting a temperature control component between the liquid cooling component and the corresponding inlet on the liquid collection pipe, the flow of coolant between the liquid cooling component and the corresponding inlet on the liquid collection pipe is controlled. When a heat source device is not generating heat, the flow of coolant in the liquid cooling component is cut off, thus avoiding energy waste caused by ineffective flow and achieving real-time matching between cooling capacity and heat generation of the heat source device.

[0007] Optionally, the refrigerant distribution assembly further includes multiple liquid distribution branches and multiple liquid collection branches. The multiple liquid distribution branches are arranged one-to-one with multiple liquid cooling components. The inlets of the multiple liquid distribution branches are all connected to the liquid distribution branches, and the outlets of the multiple liquid distribution branches are connected to the inlets of the corresponding liquid cooling components. The multiple liquid collection branches are arranged one-to-one with multiple liquid cooling components. The outlets of the multiple liquid collection branches are all connected to the liquid collection branches, and the inlets of the multiple liquid collection branches are connected to the outlets of the corresponding liquid cooling components.

[0008] Optionally, the temperature control component includes a controller, a control valve, and a temperature sensor. The control valve is disposed on the liquid collection branch pipe. The controller is electrically connected to both the control valve and the temperature sensor. The temperature sensor is used to send the temperature of the liquid cooling component outlet to the controller. When the temperature of the liquid cooling component outlet is lower than a preset temperature, the controller sends a first control signal, and upon receiving a second control signal, controls the control valve to close. When the temperature of the liquid cooling component outlet is greater than or equal to the preset temperature, the controller sends a second control signal, and upon receiving the second control signal, controls the control valve to open.

[0009] Optionally, the temperature control component includes a self-regulating temperature control valve, which is installed on the liquid collection branch pipe and is used to open when the temperature reaches a preset temperature.

[0010] Optionally, it also includes a plurality of first manual valves and a plurality of second manual valves, wherein the number of first manual valves is the same as the number of liquid distribution branches, and the first manual valves are arranged one-to-one on the liquid distribution branches; the number of second manual valves is the same as the number of liquid collection branches, and the second manual valves are arranged one-to-one on the liquid collection branches.

[0011] Optionally, it also includes an air-cooling component, the air outlet of which faces the liquid-cooling component, and the air-cooling component is used to introduce liquid cooling air into the area where the liquid-cooling component is located.

[0012] Optionally, it also includes a heat exchanger, wherein the inlet of the liquid distribution pipe is connected to the primary side outlet of the heat exchanger, the outlet of the liquid collection pipe is connected to the primary side inlet of the heat exchanger, and the secondary side of the heat exchanger is used to connect to a cold source.

[0013] The air-cooled assembly includes a heat exchange coil and a fan. The heat exchange coil is located on the air outlet side of the fan. The air blown out by the fan is cooled by the heat exchange coil and then blown towards the area where the liquid-cooled assembly is located. The inlet of the heat exchange coil is connected to the secondary side inlet of the heat exchanger, and the outlet of the heat exchange coil is connected to the secondary side outlet of the heat exchanger.

[0014] Optionally, a power pump is also included, which is disposed between the inlet of the liquid separator and the primary outlet of the heat exchanger.

[0015] Optionally, the liquid cooling assembly includes a cold plate, and the cold plate is provided with a pipe for the flow of coolant; each outlet of the distributor pipe is connected to a pipe inlet of the cold plate, and each inlet of the collector pipe is connected to a pipe outlet of the cold plate.

[0016] Optionally, the liquid cooling assembly includes an immersion tank having a chamber for containing a heat source device and coolant, and the wall of the immersion tank having an outlet and an inlet communicating with the chamber; each outlet of the distribution pipe is connected to an inlet of the immersion tank, and each inlet of the collection pipe is connected to an outlet of the immersion tank.

[0017] These features and advantages of this utility model will be disclosed in detail in the following specific embodiments and accompanying drawings. The preferred embodiments or means of this utility model will be shown in detail in conjunction with the accompanying drawings, but are not intended to limit the technical solutions of this utility model. In addition, each of these features, elements and components appearing in the following text and drawings is multiple and is labeled with different symbols or numbers for convenience, but all represent parts with the same or similar structure or function. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings:

[0019] Figure 1 This is a schematic diagram of the structure of this utility model.

[0020] Among them, 10 is the liquid cooling component; 20 is the refrigerant distribution component; 21 is the liquid distribution pipe; 22 is the liquid collection pipe; 30 is the temperature control component; 41 is the first manual valve; 42 is the second manual valve; 50 is the heat exchanger; and 60 is the air cooling component. Detailed Implementation

[0021] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described are intended to explain this utility model and should not be construed as limiting it.

[0022] The terms "an embodiment," "example," or "trademark" used in this specification refer to a particular feature, structure, or characteristic described in connection with the embodiment itself that may be included in at least one embodiment disclosed in this patent. The phrase "in an embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment.

[0023] like Figure 1 As shown, an embodiment of this utility model provides a heat exchange system, including a refrigerant distribution component 20 and a plurality of liquid cooling components 10 connected to the refrigerant distribution component 20. The refrigerant distribution component 20 is used to supply coolant to each of the liquid cooling components 10, and the liquid cooling components 10 are used to cool heat source equipment. The refrigerant distribution component 20 includes a distribution pipe 21 and a collection pipe 22. The distribution pipe 21 has a plurality of outlets, each outlet being connected to an inlet of one of the liquid cooling components 10. The collection pipe 22 has a plurality of inlets, each inlet being connected to an outlet of one of the liquid cooling components 10. A plurality of temperature control components 30 are arranged correspondingly to the plurality of liquid cooling components 10. The temperature control components 30 are disposed between the liquid cooling components 10 and the corresponding inlets on the collection pipe 22, and are used to control the opening and closing of the passage between the liquid cooling components 10 and the corresponding inlets on the collection pipe 22.

[0024] In some embodiments, the refrigerant distribution assembly 20 further includes a plurality of distributing branch pipes and a plurality of collecting branch pipes. The plurality of distributing branch pipes are arranged one-to-one with a plurality of liquid cooling assemblies 10. The inlets of the plurality of distributing branch pipes are all connected to the distributing pipe 21, and the outlets of the plurality of distributing branch pipes are connected to the inlets of the corresponding liquid cooling assemblies 10. The plurality of collecting branch pipes are arranged one-to-one with a plurality of liquid cooling assemblies 10. The outlets of the plurality of collecting branch pipes are all connected to the collecting pipe 22, and the inlets of the plurality of collecting branch pipes are connected to the outlets of the corresponding liquid cooling assemblies 10.

[0025] In some embodiments, the temperature control component 30 includes a controller, a control valve, and a temperature sensor. The control valve is disposed on the liquid collection branch pipe. The controller is electrically connected to both the control valve and the temperature sensor. The temperature sensor is used to send the temperature of the outlet of the liquid cooling component 10 to the controller. When the temperature at the outlet of the liquid cooling component is lower than a preset temperature, the controller sends a first control signal. After receiving a second control signal, the controller controls the control valve to close. When the temperature at the outlet of the liquid cooling component is greater than or equal to the preset temperature, the controller sends a second control signal. After receiving the second control signal, the controller controls the control valve to open.

[0026] In some embodiments, the temperature control component 30 includes a self-regulating temperature control valve, which is disposed on the liquid collection branch pipe and is used to conduct when the temperature reaches a preset temperature. Specifically, the CDU in a data center is generally set to differential pressure control, with a stable supply liquid temperature of A℃. The preset temperature of the self-regulating temperature control valve is A℃+3℃. When a certain heat source device (server) is not in standby mode, the temperature in the liquid collection branch pipe is no different from the supply liquid temperature A℃, and the self-regulating temperature control valve is insufficient to open, i.e., it acts as a throttling valve, shutting off (leaving a small opening to avoid the formation of a stagnant water zone that could cause bacterial contamination) the server's liquid path, reducing the secondary side flow demand and lowering pump power. When the server generates heat, the supply and return temperature difference increases, and the return water temperature meets the condition of A℃+3℃. Under the action of the heat transfer fluid, the self-regulating temperature control valve opens, the system flow demand increases adaptively, and the temperature returning to the CDU plate heat exchanger is higher, which can fully increase the heat exchange efficiency of the plate heat exchanger. This application model is not limited to servers; it can also be used for any hot load.

[0027] It should be noted that the self-regulating temperature control valve used in this invention is not particularly limited; any self-regulating temperature control valve well-known to those skilled in the art is acceptable. The self-regulating temperature control valve utilizes the principle of liquid thermal expansion and the incompressibility of liquids to achieve automatic regulation. The liquid expansion within the temperature sensor is uniform, and its control function is proportional regulation. When the temperature of the controlled medium changes, the volume of the temperature-sensing liquid within the sensor expands or contracts accordingly. When the temperature of the controlled medium is lower than the set value, the temperature-sensing liquid contracts, and the return spring pushes the valve core downward to close the valve, reducing the flow rate of the working medium. When the temperature of the controlled medium is higher than the set value, the temperature-sensing liquid expands, pushing the valve core open and increasing the flow rate of the working medium.

[0028] In some embodiments, the system further includes a plurality of first manual valves 41 and a plurality of second manual valves 42. The number of first manual valves 41 is the same as the number of the distribution branches, and each first manual valve 41 is correspondingly disposed on one of the distribution branches. The number of second manual valves 42 is the same as the number of the collection branches, and each second manual valve 42 is correspondingly disposed on one of the collection branches. Providing manual valves on the collection and distribution branches increases the ease of maintenance for the branches.

[0029] In some embodiments, the system further includes an air-cooling component 60, the air outlet of which faces the liquid-cooling component 10, and the air-cooling component 60 is used to introduce liquid cooling air into the area where the liquid-cooling component 10 is located.

[0030] In some embodiments, the system further includes a heat exchanger 50, wherein the inlet of the liquid distribution pipe 21 is connected to the primary side outlet of the heat exchanger 50, the outlet of the liquid collection pipe 22 is connected to the primary side inlet of the heat exchanger 50, and the secondary side of the heat exchanger 50 is used to connect to a cold source.

[0031] The air-cooled assembly 60 includes a heat exchange coil and a fan. The heat exchange coil is located on the air outlet side of the fan. The air blown out by the fan is cooled by the heat exchange coil and then blown towards the area where the liquid-cooled assembly 10 is located. The inlet of the heat exchange coil is connected to the secondary side inlet of the heat exchanger 50, and the outlet of the heat exchange coil is connected to the secondary side outlet of the heat exchanger 50. The air-cooled assembly and the liquid-cooled assembly share the same cold source, which simplifies the system architecture, reduces initial investment and space occupation, improves cold source utilization, and reduces total energy consumption.

[0032] In some embodiments, a power pump is also included, which is disposed between the inlet of the separator 21 and the primary outlet of the heat exchanger 50.

[0033] In some embodiments, the liquid cooling assembly 10 includes a cold plate with a pipe for coolant flow inside; each outlet of the distributor 21 is connected to a pipe inlet of the cold plate, and each inlet of the collector 22 is connected to a pipe outlet of the cold plate.

[0034] In some embodiments, the liquid cooling assembly 10 includes an immersion tank having a chamber for containing a heat source device and a coolant, and the wall of the immersion tank having an outlet and an inlet communicating with the chamber; each outlet of the distribution pipe 21 is connected to an inlet of the immersion tank, and each inlet of the collection pipe 22 is connected to an outlet of the immersion tank.

[0035] The embodiments of this utility model control the flow of coolant between the liquid cooling component and the liquid cooling branch pipe by setting a temperature control component on the liquid collection branch pipe. When a server is not generating heat, the flow of coolant in the liquid cooling component's liquid collection branch pipe is cut off, avoiding energy waste caused by ineffective flow and achieving real-time matching between cooling capacity and heat source equipment heating.

[0036] The above are merely specific embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Those skilled in the art should understand that this utility model includes, but is not limited to, the contents described in the accompanying drawings and the specific embodiments above. Any modifications that do not depart from the functional and structural principles of this utility model will be included within the scope of the claims.

Claims

1. A heat exchange system comprising a coolant distribution assembly (20) for delivering coolant to a plurality of liquid cooling assemblies (10) in communication with the coolant distribution assembly (20), the liquid cooling assemblies (10) being for cooling a heat source device, characterized in that, It also includes multiple temperature control components (30). The refrigerant distribution component (20) includes a liquid distribution pipe (21) and a liquid collection pipe (22). The liquid distribution pipe (21) is provided with multiple outlets, each of which is connected to an inlet of one of the liquid cooling components (10). The liquid collection pipe (22) is provided with multiple inlets, each of which is connected to an outlet of one of the liquid cooling components (10). The multiple temperature control components (30) are arranged one-to-one with the multiple liquid cooling components (10). The temperature control components (30) are arranged between the liquid cooling components (10) and the corresponding inlets on the liquid collection pipe (22). The temperature control components (30) are used to control the opening and closing of the passage between the liquid cooling components (10) and the corresponding inlets on the liquid collection pipe (22).

2. The heat exchange system according to claim 1, characterized in that, The refrigerant distribution assembly (20) further includes multiple liquid distribution branches and multiple liquid collection branches. The multiple liquid distribution branches are arranged one-to-one with the multiple liquid cooling assemblies (10). The inlets of the multiple liquid distribution branches are all connected to the liquid distribution pipe (21), and the outlets of the multiple liquid distribution branches are connected to the inlets of the corresponding liquid cooling assemblies (10). The multiple liquid collection branches are arranged one-to-one with the multiple liquid cooling assemblies (10). The outlets of the multiple liquid collection branches are all connected to the liquid collection pipe (22), and the inlets of the multiple liquid collection branches are connected to the outlets of the corresponding liquid cooling assemblies (10).

3. The heat exchange system according to claim 2, characterized in that, The temperature control component (30) includes a controller, a control valve, and a temperature sensor. The control valve is disposed on the liquid collection branch pipe. The controller is electrically connected to the control valve and the temperature sensor respectively. The temperature sensor is used to send the temperature of the outlet of the liquid cooling component (10) to the controller. When the temperature of the outlet of the liquid cooling component is less than a preset temperature, the controller sends a first control signal. After receiving the second control signal, the controller controls the control valve to close. When the temperature of the outlet of the liquid cooling component is greater than or equal to the preset temperature, the controller sends a second control signal. After receiving the second control signal, the controller controls the control valve to open.

4. The heat exchange system according to claim 2, characterized in that, The temperature control component (30) includes a self-operated temperature control valve, which is installed on the liquid collection branch pipe and is used to open when the temperature reaches the preset temperature.

5. The heat exchange system according to claim 3 or 4, characterized in that, It also includes multiple first manual valves (41) and multiple second manual valves (42). The number of first manual valves (41) is the same as the number of liquid distribution branches, and the first manual valves (41) are arranged one-to-one on the liquid distribution branches; the number of second manual valves (42) is the same as the number of liquid collection branches, and the second manual valves (42) are arranged one-to-one on the liquid collection branches.

6. The heat exchange system according to claim 1, characterized in that, It also includes an air-cooled assembly (60) with its air outlet facing the liquid-cooled assembly (10), and the air-cooled assembly (60) is used to introduce liquid cooling air into the area where the liquid-cooled assembly (10) is located.

7. The heat exchange system according to claim 6, characterized in that, It also includes a heat exchanger (50), the inlet of the liquid distribution pipe (21) is connected to the primary side outlet of the heat exchanger (50), the outlet of the liquid collection pipe (22) is connected to the primary side inlet of the heat exchanger (50), and the secondary side of the heat exchanger (50) is used to connect to a cold source. The air-cooled assembly (60) includes a heat exchange coil and a fan. The heat exchange coil is located on the air outlet side of the fan. The air blown out by the fan is cooled by the heat exchange coil and then blown towards the area where the liquid-cooled assembly (10) is located. The inlet of the heat exchange coil is connected to the secondary side inlet of the heat exchanger (50), and the outlet of the heat exchange coil is connected to the secondary side outlet of the heat exchanger (50).

8. The heat exchange system according to claim 7, characterized in that, It also includes a power pump, which is located between the inlet of the liquid separator (21) and the primary outlet of the heat exchanger (50).

9. The heat exchange system according to any one of claims 1-8, characterized in that, The liquid cooling assembly (10) includes a cold plate, and a pipe for coolant flow is provided inside the cold plate; each outlet of the liquid distribution pipe (21) is connected to a pipe inlet of the cold plate, and each inlet of the liquid collection pipe (22) is connected to a pipe outlet of the cold plate.

10. The heat exchange system according to any one of claims 1-8, characterized in that, The liquid cooling assembly (10) includes an immersion tank having a chamber for containing a heat source device and a coolant, and the wall of the immersion tank is provided with an outlet and an inlet communicating with the chamber; each outlet of the liquid distribution pipe (21) is connected to an inlet of the immersion tank, and each inlet of the liquid collection pipe (22) is connected to an outlet of the immersion tank.

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