CN219977165U - Heat exchange system - Google Patents
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- CN219977165U CN219977165U CN202320836392.XU CN202320836392U CN219977165U CN 219977165 U CN219977165 U CN 219977165U CN 202320836392 U CN202320836392 U CN 202320836392U CN 219977165 U CN219977165 U CN 219977165U
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- 239000007788 liquid Substances 0.000 claims abstract description 91
- 238000001816 cooling Methods 0.000 claims abstract description 64
- 230000017525 heat dissipation Effects 0.000 claims description 30
- 239000000110 cooling liquid Substances 0.000 claims description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 5
- 230000007613 environmental effect Effects 0.000 description 4
- 238000005265 energy consumption Methods 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000002826 coolant Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Abstract
The specification provides a heat exchange system, relates to the field of heat exchange. A heat exchange system, comprising: the cooling system comprises a cold liquid distribution unit, a closed cooling tower, a controller, an electric three-way valve, a first temperature sensor and a second temperature sensor; the electric three-way valve is communicated with the second input end and the second output end, or the first output end and the second input end; the controller is respectively connected with the first temperature sensor, the second temperature sensor and the electric three-way valve; when the temperature detected by the first temperature sensor is not higher than a first preset temperature, the controller turns on the second input end and the second output end and turns off the first output end and the second input end; when the detected temperature of the first temperature sensor is higher than a first preset temperature or the detected temperature of the second temperature sensor is higher than a second preset temperature, the controller conducts the first output end and the second input end. By the heat exchange system, the energy-saving effect of the heat exchange system is improved.
Description
Technical Field
The present disclosure relates to the field of heat exchange technologies, and in particular, to a heat exchange system.
Background
A large amount of network equipment and servers are required to be deployed in large-scale data centers and the like, and a large amount of heat is generated, so that a cooling system is required to be paved during construction to avoid equipment damage caused by overhigh temperature of the data centers.
The heat exchange system radiates heat to network equipment and servers in the data center through heat exchange between heat conducting media, such as by adopting a cold plate type liquid cooling mode, and along with importance of people on environmental protection, how to more reasonably realize radiation to the data center, and the reduction of energy loss generated by the heat exchange system is a problem to be solved urgently by the technicians in the field.
Disclosure of Invention
To overcome the problems in the related art, the present specification provides a heat exchange system.
With reference to a first aspect of embodiments of the present specification, the present utility model provides a heat exchange system, comprising: the cooling liquid distribution unit, the closed cooling tower and the controller;
the cold liquid distribution unit is used for carrying out heat exchange on cold liquid provided by a heat dissipation object and comprises a first input end and a first output end;
the closed cooling tower comprises a second input end and a second output end, and the second input end is connected with the first output end;
the heat exchange system further comprises an electric three-way valve, a first temperature sensor and a second temperature sensor;
the electric three-way valve is communicated with the second input end and the second output end, and the first output end and the second input end are disconnected, or the first output end and the second input end are communicated;
the first temperature sensor is arranged at the first output end, and the second temperature sensor is arranged at the first input end;
the input end of the controller is respectively connected with the first temperature sensor and the second temperature sensor, and the output end of the controller is connected with the electric three-way valve;
when the temperature detected by the first temperature sensor is not higher than a first preset temperature, the controller sends a first control signal to the electric three-way valve to conduct the second input end and the second output end; when the detected temperature of the first temperature sensor is higher than a first preset temperature or the detected temperature of the second temperature sensor is higher than a second preset temperature, the controller sends a second control signal to the electric three-way valve, and the first output end and the second input end are conducted.
Optionally, the heat exchange system further comprises a cold liquid unit;
the cold liquid unit comprises a third input end and a third output end, the third input end is connected with the second output end, and the third output end is connected with the first input end;
the heat exchange system further comprises a third temperature sensor, a fourth temperature sensor, a first electric valve, a second electric valve, a third electric valve and a fourth electric valve;
the first electric valve is arranged on a first connecting pipeline between the closed cooling tower and the first input end, the second electric valve is arranged between the cold liquid unit and the first connecting pipeline, the third electric valve is arranged on a second connecting pipeline between the second input end and the second output end, and the fourth electric valve is arranged on a pipeline close to the second output end;
the third temperature sensor is arranged on a pipeline close to the second input end, and the fourth temperature sensor is arranged on a pipeline close to the second output end;
the input end of the controller is respectively connected with the third temperature sensor and the fourth temperature sensor, and the output end of the controller is respectively connected with the first electric valve, the second electric valve, the third electric valve and the fourth electric valve;
when the temperature difference between the third temperature sensor and the fourth temperature sensor is higher than a third preset temperature, the controller sends a third control signal to the first electric valve and the fourth electric valve, and the second output end and the first input end are conducted; when the temperature difference between the third temperature sensor and the fourth temperature sensor is not higher than a third preset temperature, the controller sends a fourth control signal to the second electric valve and the third electric valve, and the first output end, the third input end, the third output end and the first input end are respectively conducted.
Optionally, the heat exchange system further comprises: an air conditioner heat exchanger;
the air conditioner heat exchanger is used for carrying out heat exchange on cold liquid provided by an air conditioner and comprises a fourth input end and a fourth output end, wherein the fourth output end is connected with the first input end, and the first output end is respectively connected with the fourth input end and the second input end;
the heat exchange system further comprises a fifth electric valve and a sixth electric valve;
the fifth electric valve is arranged on a pipeline close to the fourth input end, and the sixth electric valve is arranged on a pipeline close to the fourth output end;
the input end of the controller is connected with the closed cooling tower, and the output end of the controller is connected with the fifth electric valve and the sixth electric valve;
when the controller detects a fault signal of the closed cooling tower, the controller respectively sends a fifth control signal to the fifth electric valve and the sixth electric valve, and the first input end, the fourth output end, the fourth input end and the first output end are conducted.
Optionally, the heat exchange system further comprises: an air conditioner heat exchanger;
the air conditioner heat exchanger is used for carrying out heat exchange on cold liquid provided by an air conditioner and comprises a fourth input end and a fourth output end, wherein the fourth output end is connected with the first input end, and the first output end is respectively connected with the fourth input end and the second input end;
the heat exchange system further comprises a fifth electric valve and a sixth electric valve;
the fifth electric valve is arranged on a pipeline close to the fourth input end, and the sixth electric valve is arranged on a pipeline close to the fourth output end;
the input end of the controller is respectively connected with the closed cooling tower and the cold liquid unit, and the output end of the controller is connected with the fifth electric valve and the sixth electric valve;
when the controller detects a fault signal of the closed cooling tower and/or a fault number of the cooling liquid unit, the controller respectively sends a fifth control signal to the fifth electric valve and the sixth electric valve, and the first input end, the fourth output end, the fourth input end and the first output end are conducted.
Optionally, the heat exchange system further comprises a fifth temperature sensor and a sixth temperature sensor;
the fifth temperature sensor is arranged at the fourth input end, and the sixth temperature sensor is arranged at the fourth output end;
the input end of the controller is respectively connected with the fifth temperature sensor and the sixth temperature sensor;
when the temperature difference between the fifth temperature sensor and the sixth temperature sensor is higher than a fourth preset temperature, the controller respectively sends seventh control signals to the fifth electric valve and the sixth electric valve, and the flow between the first input end and the fourth output end is improved; when the temperature difference between the fifth temperature sensor and the sixth temperature sensor is not higher than the fourth preset temperature, the controller respectively sends eighth control signals to the fifth electric valve and the sixth electric valve, and the flow between the first input end and the fourth output end is reduced.
Optionally, in the heat exchange system, the number of the cooling liquid units is not less than two.
Optionally, at least two water pumps are arranged between the second input end and the first output end of the heat exchange system.
The technical scheme provided by the embodiment of the specification can comprise the following beneficial effects:
in this description embodiment, when the temperature through detecting cold liquid distribution unit's first input and first output both sides satisfies the settlement temperature, disconnection first output and second input, switch on second input and second output, in the cold liquid pipeline of heat dissipation object, the cold liquid also can satisfy the heat dissipation demand of heat dissipation object under the condition that cold liquid passes through cold liquid distribution unit direct reflux, avoid needing to flow back the energy that the closed cooling tower consumed with cold liquid, promoted heat exchange system's energy-conserving effect.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the specification and together with the description, serve to explain the principles of the specification.
Fig. 1 is a schematic view of a heat exchange system according to an embodiment of the present utility model;
FIG. 2 is a schematic diagram of another heat exchange system according to an embodiment of the present utility model;
FIG. 3 is a schematic view of another heat exchange system according to an embodiment of the present utility model;
fig. 4 is a schematic structural view of another heat exchange system according to an embodiment of the present utility model.
Detailed Description
Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present specification.
The present utility model provides a heat exchange system, as shown in fig. 1, comprising: the cooling system comprises a cold liquid distribution unit, a closed cooling tower and a controller. And the cold liquid distribution unit is used for carrying out heat exchange on cold liquid provided by a heat dissipation object, wherein the heat dissipation object can comprise network equipment and a server, and the cold liquid is circulated to the network equipment and the server through pipelines to take away heat generated in the network equipment and the server.
A cold liquid distribution unit comprising a first input 10 and a first output 20; the closed cooling tower comprises a second input end 11 and a second output end 21, wherein the second input end 11 is connected with the first output end 20.
In order to enhance the energy saving effect of the heat exchange system, the heat exchange system further includes an electric three-way valve 30, a first temperature sensor 40, and a second temperature sensor 41.
The electric three-way valve 30 is communicated with the second input end 11 and the second output end 21, or is communicated with the first output end 20 and the second input end 11, and the connection of the first output end 20, namely whether the first output end 20 and the second input end 11 are conducted or not, can be switched through the electric three-way valve 30, so that the switching of a cold liquid circulation mode is realized.
The first temperature sensor 40 is disposed at the first output terminal 20, and the second temperature sensor 41 is disposed at the first input terminal 10.
The input end 50 of the controller is respectively connected with the first temperature sensor 40 and the second temperature sensor 41, and the output end 51 of the controller is connected with the electric three-way valve 30. Subsequently, the connection of the controller to other devices is indicated by the suspended dashed line.
Wherein, when the temperature detected by the first temperature sensor 40 is not higher than the first preset temperature, the controller sends a first control signal to the electric three-way valve 30 to turn on the second input end 11 and the second output end 21 and disconnect the first output end 20 and the second input end 11; when the first temperature sensor 40 detects that the temperature is higher than the first preset temperature or the second temperature sensor 41 is higher than the second preset temperature, the controller sends a second control signal to the electric three-way valve 30 to conduct the first output terminal 20 and the second input terminal 11.
When the heat dissipation object in the data center dissipates heat, the current environmental temperature of the data center needs to be considered, for example, the environmental temperature in summer is higher, the temperature of the cold liquid circulating in the pipeline and the closed cooling tower can be increased, the environmental temperature in winter is lower, the temperature of the cold liquid circulating in the pipeline and the closed cooling tower can be reduced, and the heat dissipation efficiency of the pipeline and the closed cooling tower can be reduced. Therefore, the staff can confirm that the heat exchange system can realize the heat dissipation of the heat dissipation object through the refrigerant circulation of the staff in winter. When the first temperature sensor 40 detects that the temperature is not higher than a first preset temperature (for example, 30 °), a first control signal is generated by the controller to act on the electric three-way valve 30, so that the second input end 11 and the second output end 21 are connected, the first output end 20 and the second input end 11 are disconnected, the cold liquid of the second output end 21 is directly returned to the second input end 11, that is, heat exchange of a closed cooling tower is not needed, and the cold liquid distribution unit can complete heat dissipation of the server and the network equipment through circulation of the cold liquid distribution unit. It should be noted that, the cooling liquid in the pipeline for radiating the server and the network device and the cooling liquid in the pipeline such as the closed cooling tower shown in the figure cannot directly exchange liquid, that is, the cooling liquid in the closed cooling tower and the cooling liquid in the pipeline for radiating the server and the network device exchange heat through the cooling liquid distribution unit, but the cooling liquid in the two pipelines circulates independently. Therefore, when the electric three-way valve 30 turns on the second input end 11 and the second output end 21, the cold liquid in the closed cooling tower is not circulated to the cold liquid distribution unit, and the cold liquid in the heat dissipation pipelines of the server and the network equipment is not cooled. The circulation in the drawing may be referred to as a primary-side circulation, and the cold liquid pipe line connecting the cold liquid distribution unit and the server or the network device (heat sink) may be referred to as a secondary-side circulation, that is, the cold liquid in the primary-side circulation and the secondary-side circulation may not be directly exchanged, but only exchanged by the cold liquid distribution unit.
When the first temperature sensor 40 detects a temperature higher than the first preset temperature or when the second temperature sensor 41 detects a temperature higher than the second preset temperature (for example, 25 °), the cold liquid output from the first output terminal 20 of the cold liquid distribution unit or the cold liquid flowing into the first input terminal 10 of the cold liquid distribution unit may have a possibility that the heat radiation object temperature is too high or the reflowed cold liquid cannot meet the heat radiation object requirement. At this time, in order to meet the heat dissipation requirement, the controller needs to send a second control signal to the electric three-way valve 30, so that the electric three-way valve 30 conducts the first output end 20 and the second input end 11, and cools the cold liquid circulated in the pipeline through the closed cooling tower, thereby meeting the heat dissipation requirement of the liquid cooling on the heat dissipation object.
When the temperatures of the first input end and the two sides of the first output end of the cold liquid distribution unit are detected to meet the set temperature, the second input end and the second output end are conducted, the heat dissipation requirement of a heat dissipation object can be met under the condition that cold liquid directly flows back through the cold liquid distribution unit in a cold liquid pipeline (secondary side circulation) of a server and network equipment, the energy consumed by the cold liquid flowing back to a closed cooling tower is avoided, and the energy saving effect of a heat exchange system is improved.
Optionally, as shown in fig. 2, the heat exchange system further includes a liquid cooling unit, where the liquid cooling unit is used to cool the cooling liquid in the pipeline.
The cooling liquid unit comprises a third input end 12 and a third output end 22, wherein the third input end 12 is connected with a second output end 21, and the third output end 22 is connected with the first input end 10.
The heat exchange system further includes a third temperature sensor 42, a fourth temperature sensor 43, a first electrically operated valve 31, a second electrically operated valve 32, a third electrically operated valve 33, and a fourth electrically operated valve 34.
The first electrically operated valve 31 is disposed on the first connecting line 60 between the closed cooling tower and the first input 10, the second electrically operated valve 32 is disposed between the cooling unit and the first connecting line 60, the third electrically operated valve 33 is disposed on the second connecting line 61 between the second input 11 and the second output 21, and the fourth electrically operated valve 34 is disposed on the line near the second output 21.
The third temperature sensor 42 is arranged on the line near the second input end 11 and the fourth temperature sensor 43 is arranged on the line near the second output end 21.
The input end 50 of the controller is respectively connected with the third temperature sensor 42 and the fourth temperature sensor 43, and the output end 51 of the controller is respectively connected with the first electric valve 31, the second electric valve 32, the third electric valve 33 and the fourth electric valve 34.
When the temperature difference between the third temperature sensor 42 and the fourth temperature sensor 43 is higher than the third preset temperature (for example, 5 °), which indicates that the closed cooling tower reliably achieves cooling of the cooling liquid in the pipeline, the controller sends the third control signal to the first electric valve 31 and the fourth electric valve 34, so as to conduct the second output end 21 and the first input end 10.
When the temperature difference between the third temperature sensor 42 and the fourth temperature sensor 43 is not higher than the third preset temperature, it is indicated that the closed cooling tower cannot achieve cooling of the coolant in the pipeline, and heat needs to be dissipated in a manner with higher energy consumption (such as a coolant unit) to meet the cooling requirement of the heat dissipating object, and then the controller sends fourth control signals to the second electric valve 32 and the third electric valve 33 to respectively conduct the first output end 20 and the third input end 12 and the third output end 22 and the first input end 10. In this case, the electric three-way valve 30 maintains the first output port 20 and the second input port 11 in conduction, but the first output port 20 is connected to the third input port 12 due to conduction of the third electric valve 33, and the first output port 20 is connected to the second input port 11 but cannot form a cycle due to disconnection of the fourth electric valve 34, so that the cold liquid finally flows into the cold liquid machine set through the third electric valve 33 to the third input port 12. If the electric three-way valve 30 controls to disconnect the first output end 20 and the second input end 11, the cold liquid in the cold liquid distribution unit in the primary side circulation cannot exchange heat through the cold liquid unit.
Through the mode, when the heat dissipation requirement can be met, heat dissipation is achieved through the closed cooling tower with low energy consumption, and when the heat dissipation requirement cannot be met through the closed cooling tower, cooling of cold liquid is achieved through the cold liquid unit with high energy consumption, and reliable heat dissipation is provided. In this way, the flexibility of the control of the heat exchange system is also possible.
Optionally, according to the actual requirement of heat dissipation, the number of the reserved cooling liquid units is not less than two groups.
Optionally, at least two water pumps are arranged between the second input 11 and the first output 20.
Based on actual demand, can adjust different cold liquid cooling demands through the difference that sets up the quantity of cold liquid unit, can adjust the flow velocity demand of cold liquid in the pipeline through the difference that sets up the quantity of water pump.
Optionally, as shown in fig. 3, the heat exchange system further includes: an air conditioner heat exchanger;
the air conditioner heat exchanger is used for performing heat exchange on cold liquid provided by an air conditioner and comprises a fourth input end 13 and a fourth output end 23, the fourth output end 23 is connected with the first input end 10, and the first output end 20 is respectively connected with the fourth input end 13 and the second input end 11, so that the cold liquid flowing out of the first output end 20 is split into a closed cooling tower and the air conditioner heat exchanger. The air conditioner heat exchanger can be divided into a primary side circulation and a secondary side circulation, the primary side circulation is a pipeline in the diagram, the secondary side circulation is one side of a heat dissipation object connected with the air conditioner heat exchanger, the secondary side circulation of the air conditioner heat exchanger is the primary side circulation for cooling, cold liquid between the primary side circulation and the secondary side circulation does not exchange liquid, and only heat exchange is performed.
The heat exchange system further includes a fifth electrically operated valve 35 and a sixth electrically operated valve 36.
The fifth electrically operated valve 35 is disposed on the line adjacent the fourth input end 13 and the sixth electrically operated valve 36 is disposed on the line adjacent the fourth output end 23.
The input end 50 of the controller is connected with the closed cooling tower, and the output end 51 of the controller is connected with the fifth electric valve 35 and the sixth electric valve 36. The connection between the controller and the closed cooling tower can be a liquid level detector in the closed cooling tower so as to determine whether a fault occurs according to the capacity of the cold liquid in the closed cooling tower, or a temperature sensor arranged in the closed cooling tower so as to determine whether the fault occurs by detecting the temperature of the cold liquid in the closed cooling tower, or the fault determination of the closed cooling tower can be realized by other detection devices.
When the controller detects a fault signal of the closed cooling tower, the controller sends a fifth control signal to the fifth electric valve 35 and the sixth electric valve 36 respectively, and the first input end 10 and the fourth output end 23, the fourth input end 13 and the first output end 20 are conducted. The cold liquid pipeline of the primary side circulation in the air conditioner heat exchanger can be used as the supplement of the closed cooling tower to realize more reliable heat dissipation.
Optionally, as shown in fig. 4, the heat exchange system further includes: an air conditioner heat exchanger and a cold liquid unit;
the air conditioner heat exchanger is used for performing heat exchange on cold liquid provided by an air conditioner and comprises a fourth input end 13 and a fourth output end 23, wherein the fourth output end 23 is connected with the first input end 10, and the first output end 20 is respectively connected with the fourth input end 13 and the second input end 11.
The heat exchange system further includes a fifth electrically operated valve 35 and a sixth electrically operated valve 36.
The fifth electrically operated valve 35 is disposed on the line adjacent the fourth input end 13 and the sixth electrically operated valve 36 is disposed on the line adjacent the fourth output end 23.
The input end 50 of the controller is respectively connected with the closed cooling tower and the liquid cooling unit, and the output end 51 of the controller is connected with the fifth electric valve 35 and the sixth electric valve 36.
When the controller detects a fault signal of the closed cooling tower and/or a fault signal of the cooling liquid unit, the controller respectively sends a fifth control signal to the fifth electric valve 35 and the sixth electric valve 36, and the first input end 10 and the fourth output end 23, the first output end 20 and the fourth input end 13 are conducted.
Through the mode, the air conditioner heat exchanger and the pipelines of the air conditioner are connected to the heat exchange system, so that when the closed cooling tower of fig. 3 fails, or when the closed cooling tower and/or the cold liquid unit of fig. 4 fails, the cold liquid in the secondary side circulation pipeline of the air conditioner heat exchanger is used as standby cooling cold liquid to exchange heat with the cold liquid pipeline of the heat exchange system, the cold liquid in the heat exchange system is cooled, and the reliability of the heat exchange system is further improved.
Optionally, the heat exchange system, as shown in fig. 4, further includes a fifth temperature sensor 44 and a sixth temperature sensor 45.
The fifth temperature sensor 44 is disposed at the fourth input 13, and the sixth temperature sensor 45 is disposed at the fourth output 23.
The input 50 of the controller is connected to the fifth temperature sensor 44 and the sixth temperature sensor 45, respectively.
Wherein when the temperature difference between the fifth temperature sensor 44 and the sixth temperature sensor 45 is higher than a fourth preset temperature (for example, 10 °), the controller sends seventh control signals to the fifth electric valve 35 and the sixth electric valve 36, respectively, to increase the flow rate between the first input terminal 10 and the fourth output terminal 23; when the temperature difference between the fifth temperature sensor 44 and the sixth temperature sensor 45 is higher than the fourth preset temperature, the controller sends eighth control signals to the fifth electrically operated valve 35 and the sixth electrically operated valve 36, respectively, reducing the flow between the first input 10 and the fourth output 23.
The opening and closing degree of the fifth electric valve 35 and the sixth electric valve 36 is controlled by acquiring the temperature difference between the fourth input end 13 and the fourth output end 23 of the air-conditioner heat exchanger, so that the circulation degree of the air-conditioner heat exchanger in the cold liquid pipeline is adjusted, and the heat exchange through the air-conditioner heat exchanger has higher flexibility.
The technical scheme provided by the embodiment of the specification can comprise the following beneficial effects:
in this description embodiment, when the temperature through detecting cold liquid distribution unit's first input and first output both sides satisfies the settlement temperature, disconnection first output and second input, switch on second input and second output, in the cold liquid pipeline of heat dissipation object, the cold liquid also can satisfy the heat dissipation demand of heat dissipation object under the condition that cold liquid passes through cold liquid distribution unit direct reflux, avoid needing to flow back the energy that the closed cooling tower consumed with cold liquid, promoted heat exchange system's energy-conserving effect.
In addition, it should be noted that the closed cooling tower, the cooling liquid unit and the air conditioner heat exchanger may be set at the same time or part thereof, and the heat dissipation mode may be selected according to the actual heat dissipation requirement, and in the case of simultaneous or partial existence, the control mode may be deployed according to the temperature and the operation state, or the selected priority may be set in the controller, which is not limited.
It is to be understood that the present description is not limited to the precise arrangements and instrumentalities shown in the drawings, which have been described above, and that various modifications and changes may be made without departing from the scope thereof.
The foregoing description of the preferred embodiments is provided for the purpose of illustration only, and is not intended to limit the scope of the disclosure, since any modifications, equivalents, improvements, etc. that fall within the spirit and principles of the disclosure are intended to be included within the scope of the disclosure.
Claims (7)
1. A heat exchange system, comprising: the cooling liquid distribution unit, the closed cooling tower and the controller;
the cold liquid distribution unit is used for carrying out heat exchange on cold liquid provided by a heat dissipation object and comprises a first input end and a first output end;
the closed cooling tower comprises a second input end and a second output end, and the second input end is connected with the first output end;
the heat exchange system further comprises an electric three-way valve, a first temperature sensor and a second temperature sensor;
the electric three-way valve is communicated with the second input end and the second output end, or the first output end and the second input end;
the first temperature sensor is arranged at the first output end, and the second temperature sensor is arranged at the first input end;
the input end of the controller is respectively connected with the first temperature sensor and the second temperature sensor, and the output end of the controller is connected with the electric three-way valve;
when the temperature detected by the first temperature sensor is not higher than a first preset temperature, the controller sends a first control signal to the electric three-way valve, the second input end and the second output end are conducted, and the first output end and the second input end are disconnected; when the detected temperature of the first temperature sensor is higher than a first preset temperature or the detected temperature of the second temperature sensor is higher than a second preset temperature, the controller sends a second control signal to the electric three-way valve, and the first output end and the second input end are conducted.
2. The system of claim 1, further comprising a chiller;
the cold liquid unit comprises a third input end and a third output end, the third input end is connected with the second output end, and the third output end is connected with the first input end;
the system further comprises a third temperature sensor, a fourth temperature sensor, a first electric valve, a second electric valve, a third electric valve and a fourth electric valve;
the first electric valve is arranged on a first connecting pipeline between the closed cooling tower and the first input end, the second electric valve is arranged between the cold liquid unit and the first connecting pipeline, the third electric valve is arranged on a second connecting pipeline between the second input end and the second output end, and the fourth electric valve is arranged on a pipeline close to the second output end;
the third temperature sensor is arranged on a pipeline close to the second input end, and the fourth temperature sensor is arranged on a pipeline close to the second output end;
the input end of the controller is respectively connected with the third temperature sensor and the fourth temperature sensor, and the output end of the controller is respectively connected with the first electric valve, the second electric valve, the third electric valve and the fourth electric valve;
when the temperature difference between the third temperature sensor and the fourth temperature sensor is higher than a third preset temperature, the controller sends a third control signal to the first electric valve and the fourth electric valve to conduct the second output end and the first input end; when the temperature difference between the third temperature sensor and the fourth temperature sensor is not higher than a third preset temperature, the controller sends a fourth control signal to the second electric valve and the third electric valve, and the first output end, the third input end, the third output end and the first input end are respectively conducted.
3. The system of claim 1, further comprising: an air conditioner heat exchanger;
the air conditioner heat exchanger is used for carrying out heat exchange on cold liquid provided by an air conditioner and comprises a fourth input end and a fourth output end, wherein the fourth output end is connected with the first input end, and the first output end is respectively connected with the fourth input end and the second input end;
the system further comprises a fifth electrically operated valve and a sixth electrically operated valve;
the fifth electric valve is arranged on a pipeline close to the fourth input end, and the sixth electric valve is arranged on a pipeline close to the fourth output end;
the input end of the controller is connected with the closed cooling tower, and the output end of the controller is connected with the fifth electric valve and the sixth electric valve;
when the controller detects a fault signal of the closed cooling tower, the controller respectively sends a fifth control signal to the fifth electric valve and the sixth electric valve, and the first input end, the fourth output end, the fourth input end and the first output end are conducted.
4. The system of claim 2, further comprising: an air conditioner heat exchanger;
the air conditioner heat exchanger is used for carrying out heat exchange on cold liquid provided by an air conditioner and comprises a fourth input end and a fourth output end, wherein the fourth output end is connected with the first input end, and the first output end is respectively connected with the fourth input end and the second input end;
the system further comprises a fifth electrically operated valve and a sixth electrically operated valve;
the fifth electric valve is arranged on a pipeline close to the fourth input end, and the sixth electric valve is arranged on a pipeline close to the fourth output end;
the input end of the controller is respectively connected with the closed cooling tower and the cold liquid unit, and the output end of the controller is connected with the fifth electric valve and the sixth electric valve;
when the controller detects a fault signal of the closed cooling tower and/or a fault number of the cold liquid unit, the controller respectively sends a fifth control signal to the fifth electric valve and the sixth electric valve, and the first input end, the fourth output end, the fourth input end and the first output end are conducted.
5. The system of claim 3 or 4, further comprising a fifth temperature sensor and a sixth temperature sensor;
the fifth temperature sensor is arranged at the fourth input end, and the sixth temperature sensor is arranged at the fourth output end;
the input end of the controller is respectively connected with the fifth temperature sensor and the sixth temperature sensor;
when the temperature difference between the fifth temperature sensor and the sixth temperature sensor is higher than a fourth preset temperature, the controller respectively sends seventh control signals to the fifth electric valve and the sixth electric valve, and the flow between the first input end and the fourth output end is improved; and when the temperature difference between the fifth temperature sensor and the sixth temperature sensor is not higher than a fourth preset temperature, the controller respectively sends eighth control signals to the fifth electric valve and the sixth electric valve to reduce the flow between the first input end and the fourth output end.
6. The system of claim 2, wherein the number of sets of cold liquid is not less than two sets.
7. The system of claim 1, wherein at least two water pumps are disposed between the second input and the first output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320836392.XU CN219977165U (en) | 2023-04-12 | 2023-04-12 | Heat exchange system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320836392.XU CN219977165U (en) | 2023-04-12 | 2023-04-12 | Heat exchange system |
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