Liquid cooled door, cabinet and control system

Abstract

The embodiment of the application provides a liquid cooling door, a cabinet and a control system, the liquid cooling door comprising: a shell, a cooling liquid circulation channel, a monitoring component and a controller; the shell is provided with an air inlet and an air outlet, the air inlet is used for air to enter the shell, and the air outlet is used for air after heat exchange with the cooling liquid circulation channel in the shell to be discharged; the monitoring component is used for detecting the inlet liquid temperature of the cooling liquid circulation channel to obtain a first temperature signal and detecting the temperature of the air discharged from the shell to obtain a second temperature signal; and the controller is used for judging that the difference between the temperature value indicated by the first temperature signal and the temperature value indicated by the second temperature signal is greater than a first preset value, and then determining that the cooling liquid circulation channel is blocked. Whether the cooling liquid circulation channel is blocked can be monitored through the monitoring component and the controller.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of cabinets, in particular to a liquid cooling door, a cabinet and a control system. BACKGROUND

[0002] A plurality of cabinets are usually arranged in a machine room, and the cabinets are arranged side by side and in series. The cabinet includes a cabinet body and a liquid cooling door.

[0003] Since the cabinet body is provided with electrical equipment and electronic equipment, a large amount of heat will be generated when the electrical equipment and electronic equipment are working, which will cause the temperature inside the cabinet to rise. However, if the temperature inside the cabinet is too high, it will affect the normal use of the electrical equipment and electronic equipment. In view of this, the liquid cooling door has heat exchange with the hot air inside the cabinet to achieve the effect of reducing the temperature inside the cabinet.

[0004] At present, a cooling liquid circulation channel is usually arranged in the liquid cooling door to cool the air passing through the liquid cooling door. If the cooling liquid circulation channel is blocked, the passing hot air cannot be cooled, which will affect the heat exchange function of the liquid cooling door and the normal work of the equipment in the cabinet.

[0005] CONTENT

[0006] The present application provides a liquid cooling door, a cabinet and a control system to monitor whether the cooling liquid circulation channel of the liquid cooling door is blocked, and ensure the heat exchange function of the liquid cooling door.

[0007] To achieve the above-mentioned purpose, the present application provides the following technical solutions:

[0008] In a first aspect, the present application provides a liquid cooling door, comprising: a shell, a cooling liquid circulation channel, a monitoring component and a controller; wherein the shell is provided with an air inlet and an air outlet, the air inlet is used for air to enter the shell, and the air outlet is used for discharging air after heat exchange with the cooling liquid circulation channel in the shell; the monitoring component is used for detecting the inlet temperature of the cooling liquid circulation channel to obtain a first temperature signal, and detecting the temperature of the air discharged from the shell to obtain a second temperature signal; the controller is used for determining that the difference between the temperature value indicated by the first temperature signal and the temperature value indicated by the second temperature signal is greater than a first preset value, and then determining that the cooling liquid circulation channel is blocked.

[0009] From the above content, it can be seen that in the liquid cooling door provided by the present application, the monitoring component can detect the inlet temperature of the cooling liquid circulation channel and the temperature of the air discharged from the shell; the controller can determine whether the cooling liquid circulation channel is blocked according to the size relationship between the difference between the inlet temperature and the temperature of the air detected by the monitoring component and the first preset value, so as to realize the monitoring of whether the cooling liquid circulation channel is blocked.

[0010] In a possible implementation, the monitoring component comprises: a first temperature sensor and a second temperature sensor, wherein: the first temperature sensor is arranged in the cooling liquid circulation channel to detect the temperature of the cooling liquid entering the cooling liquid circulation channel to obtain a first temperature signal; and the second temperature sensor is arranged at the air outlet of the shell to detect the temperature of the air discharged from the shell to obtain a second temperature signal.

[0011] In a possible implementation, the second temperature sensor is arranged in a plurality of numbers along the height direction of the air outlet, and the controller determines that the cooling liquid circulation channel is blocked when the difference between the temperature value indicated by the first temperature signal and the temperature value indicated by the second temperature signal is greater than a first preset value, and is configured to: calculate the average value of the temperature values indicated by the temperature signals detected by the plurality of second temperature sensors, and determine that the cooling liquid circulation channel is blocked when the difference between the temperature value indicated by the first temperature signal and the calculated average value is greater than the first preset value.

[0012] As can be seen from the above, the second temperature sensor is arranged in a plurality of numbers to detect the air outlet temperatures at different positions along the height direction of the air outlet, and the average value of the temperature values indicated by all the second temperature sensors is calculated as the air outlet temperature of the air outlet, thereby improving the accuracy of detecting the air outlet temperature of the air outlet and further improving the accuracy of determining whether the cooling liquid circulation channel is blocked.

[0013] In a possible implementation, the cooling liquid circulation channel comprises an inlet channel, a connecting pipeline, and an outlet channel that are sequentially connected; the inlet channel and the outlet channel both extend outside the shell, the connecting pipeline is located inside the shell and reciprocally bends in the shell, and the first temperature sensor is arranged in the inlet channel.

[0014] In a possible implementation, the liquid cooling door further comprises a heat dissipation fin arranged inside the shell, and the connecting pipeline is fixedly connected with the heat dissipation fin.

[0015] As can be seen from the above, the heat dissipation fin can increase the contact area of the connecting pipeline and the air for heat exchange, thereby improving the heat exchange efficiency.

[0016] In a possible implementation, the heat dissipation fin is arranged in a plurality of numbers in the shell.

[0017] As can be seen from the above, the heat dissipation fin is arranged in a plurality of numbers to increase the contact area of the connecting pipeline and the air for heat exchange, thereby improving the heat exchange efficiency.

[0018] In a possible implementation, the air outlet and the air inlet are distributed on a set of opposite surfaces of the shell, and both the air outlet and the air inlet are directed towards the cooling liquid circulation channel.

[0019] From the above, it can be seen that the air outlet and the air inlet are both directed to the cooling liquid circulation channel, which can shorten the distance of the air flow to the cooling liquid circulation channel and improve the heat exchange efficiency.

[0020] In one possible implementation, the liquid cooling door further comprises a blockage alarm device connected with the controller, which is used for the controller to determine that the cooling liquid circulation channel is blocked and to alarm.

[0021] From the above, it can be seen that the blockage alarm device is arranged on the liquid cooling door, which can remind the user when the cooling liquid circulation channel is determined to be blocked.

[0022] In one possible implementation, the liquid cooling door further comprises a temperature and humidity sensor connected with the controller, which is used for detecting the temperature and humidity of the air at the air inlet; the controller is further used to obtain the dew point temperature corresponding to the temperature and humidity detected by the temperature and humidity sensor, and to determine that the difference between the inlet liquid temperature of the cooling liquid circulation channel detected by the monitoring component and the dew point temperature is less than a second preset value, thereby determining that the cooling liquid circulation channel is condensed.

[0023] From the above, it can be seen that by arranging the temperature and humidity sensor and using the controller to determine the dew point temperature according to the temperature and humidity detected by the temperature and humidity sensor, the dew point temperature is compared with the inlet liquid temperature of the cooling liquid circulation channel, which can determine whether the cooling liquid circulation channel is condensed, thereby facilitating the user to obtain the condensation state of the cooling liquid circulation channel.

[0024] In one possible implementation, when the controller obtains the dew point temperature corresponding to the temperature and humidity detected by the temperature and humidity sensor, it is used to screen out the dew point temperature corresponding to the temperature and humidity obtained by the temperature and humidity sensor in the corresponding relationship between the temperature, humidity and dew point temperature pre-stored in the controller.

[0025] In one possible implementation, the liquid cooling door further comprises a condensation alarm device connected with the controller, which is used for the controller to determine that the cooling liquid circulation channel is condensed and to alarm.

[0026] From the above, it can be seen that the condensation alarm device is arranged on the liquid cooling door, which can remind the user when the cooling liquid circulation channel is determined to be condensed.

[0027] In the second aspect, the present application provides a cabinet, which comprises a cabinet body, a monitoring component as in the first aspect and some possible implementations of the first aspect, a controller as in the first aspect and some possible implementations of the first aspect, and a shell and a cooling liquid circulation channel of the liquid cooling door as in the first aspect and some possible implementations of the first aspect.

[0028] From the above, it can be seen that the cabinet includes a monitoring component and a controller, and the monitoring component is used to detect the inlet temperature of the cooling liquid circulation channel and the temperature of the air discharged from the shell; and the controller is used to determine whether the cooling liquid circulation channel is blocked according to the size relationship between the difference between the inlet temperature and the air temperature detected by the monitoring component and the first preset value. The monitoring component and the controller can be used to monitor whether the cooling liquid circulation channel is blocked.

[0029] In one possible implementation, the controller is installed in the cabinet body, and a temperature and humidity sensor is also installed in the cabinet body, the temperature and humidity sensor is used to detect the temperature and humidity of the air delivered to the air inlet; the temperature and humidity sensor is connected with the controller, and is used to detect the temperature and humidity of the air at the air inlet; the controller is further used to obtain a dew point temperature corresponding to the temperature and humidity detected by the temperature and humidity sensor, and determine that the difference between the temperature detected by the first temperature sensor and the dew point temperature is less than the second preset value, and then determine that the cooling liquid circulation channel is condensed.

[0030] From the above, it can be seen that by setting the temperature and humidity sensor, and using the controller to determine the dew point temperature according to the temperature and humidity detected by the temperature and humidity sensor, and comparing the dew point temperature with the inlet temperature of the cooling liquid circulation channel, it can be determined whether the cooling liquid circulation channel is condensed, which can facilitate the user to obtain the condensation state of the cooling liquid circulation channel.

[0031] In one possible implementation, the temperature and humidity sensor and the controller are integrated in the same installation box.

[0032] From the above, it can be seen that the temperature and humidity sensor and the controller are integrated, which can reduce the use of the installation box and reduce the occupied space.

[0033] In a third aspect, the application provides a control system, including a machine room control end, a refrigeration equipment controller, a water chiller and a water cooling tower, and a cabinet according to any one of the above; the machine room control end is used to receive a first signal sent by the controller, generate a first control instruction, and the first signal is generated by the controller when the cooling liquid circulation channel is condensed; the refrigeration equipment controller is used to receive the first control instruction and generate a second control instruction; the water chiller and the water cooling tower are used to receive the second control instruction, and in response to the second control instruction, reduce the compressor power of the water chiller and the water cooling tower, and the output ends of the water chiller and the water cooling tower are communicated with the cooling liquid circulation channel.

[0034] From the above, it can be seen that the machine room control end, the refrigeration equipment controller, the water chiller and the water cooling tower can be used to adjust the inlet temperature of the cooling liquid circulation channel of the cabinet, so as to solve the problem of condensation of the cooling liquid circulation channel. BRIEF DESCRIPTION OF DRAWINGS

[0035] Figure 1aAn application diagram of the cabinet provided by the prior art in a computer room;

[0036] Figure 1b A structural diagram of the cabinet when the liquid cooling door is closed, provided by the prior art;

[0037] Figure 1c A structural diagram of the cabinet when the liquid cooling door is opened, provided by the prior art;

[0038] Figure 1d A structural diagram of the inside of the liquid cooling door, provided by the prior art;

[0039] Figure 2a A structural diagram of the cabinet when the liquid cooling door is opened, provided by the present application;

[0040] Figure 2b A side view of the cabinet when the liquid cooling door is closed, provided by the present application;

[0041] Figure 2c A structural diagram of the inside of the liquid cooling door, provided by the present application;

[0042] Figure 2d A structural diagram of the liquid cooling door, provided by the present application;

[0043] Figure 2e Another structural diagram of the liquid cooling door, provided by the present application;

[0044] Figure 3a A structural diagram of the cabinet when the liquid cooling door is opened, provided by the present application;

[0045] Figure 3b A side view of the cabinet when the liquid cooling door is closed, provided by the present application;

[0046] Figure 4 A control logic diagram for adjusting the temperature of the cooling liquid in the liquid inlet channel, provided by the present application;

[0047] Wherein, Figures 1a to 1d 100 is the cabinet, 01 is the cabinet body, and 02 is the liquid cooling door;

[0048] 011 is the controller, 021 is the shell, 022 is the air inlet, 023 is the air outlet, 024 is the liquid inlet channel, and 025 is the liquid outlet channel;

[0049] 026 is the connecting pipeline, 027 is the heat dissipation fin, and 028 is the cooling liquid circulation channel;

[0050] Figures 2a to 4100 is a cabinet, 1 is a cabinet body, 2 is a liquid cooling door, 11 is a controller, 21 is a shell, 22 is an air inlet, 23 is an air outlet, 24 is a liquid inlet channel, 25 is a liquid outlet channel, 26 is a connecting pipeline, 27 is a heat dissipation fin, and 28 is a cooling liquid circulation channel;

[0051] 3 is a first temperature sensor, 4 is a second temperature sensor, and 5 is a temperature and humidity sensor. DETAILED DESCRIPTION

[0052] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. The terms used in the following embodiments are only for the purpose of describing the specific embodiments and are not intended to be limiting to the present application. As used in the specification and the appended claims of the present application, the singular forms “a,” “an,” and “the” are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms “one or more” as used in the embodiments of the present application refer to one, two, or more than two; “and / or” describes the associating relationship of the associated objects, which means that there can be three relationships; for example, A and / or B can represent the following three cases: A exists alone, A and B exist together, and B exists alone, where A and B can be singular or plural. The character “ / ” generally represents an “or” relationship between the associated objects.

[0053] In the present specification, the reference to “one embodiment” or “some embodiments” means that a particular feature, structure, or characteristic described in connection with the embodiment is included in one or more embodiments of the present application. Therefore, the statements “in one embodiment,” “in some embodiments,” “in other some embodiments,” “in yet some embodiments,” and the like appearing in various places in the specification are not necessarily all referring to the same embodiment, but mean “one or more but not all embodiments” unless otherwise specifically stated. The terms “include,” “have,” and their variants mean “including but not limited to,” unless otherwise specifically stated.

[0054] The plurality referred to in the embodiments of the present application means greater than or equal to two. It should be noted that in the description of the embodiments of the present application, the terms “first,” “second,” and the like are only used for the purpose of distinguishing the description and cannot be understood as indicating or implying relative importance or indicating or implying order.

[0055] Figures 1a to 1d The structure of the cabinet 0100 in the prior art is shown in FIG. 1, Figure 1a is an external structure diagram of the cabinet 0100 applied to a machine room, Figure 1b and Figure 1cThese are structural diagrams of rack 0100 with the liquid cooling door 02 closed and open, respectively. Figure 1d This is a diagram of the internal structure of the liquid-cooled door 02.

[0056] like Figure 1a As shown, a computer room typically houses multiple server racks 0100, arranged side-by-side and in series. Each rack 0100 includes a cabinet body 01 and a liquid-cooled door 02, which is connected to the cabinet body 01, for example, by a rotatable connection. The server rack 0100 is placed in the computer room, and the liquid-cooled door 02 can serve as the main entrance facing the user or as the back panel of the rack 0100.

[0057] Because cabinet 01 houses electrical and electronic equipment, which generates a significant amount of heat during operation, the internal temperature of cabinet 01 rises. Excessive heat inside cabinet 01 can impair the normal operation of the electrical and electronic equipment. Therefore, liquid-cooled door 02 exchanges heat with the hot air inside cabinet 01 to cool the internal temperature of cabinet 01.

[0058] like Figure 1b , Figure 1c and Figure 1d As shown, the liquid cooling door 02 includes a housing 021, heat dissipation fins 027, and a coolant circulation channel 028. The coolant circulation channel 028 includes an inlet channel 024, a connecting pipe 026, and an outlet channel 025. The housing 021 includes an air inlet 022 and an air outlet 023. The housing 021 is a hollow structure; the heat dissipation fins 027 and the connecting pipe 026 are installed inside the housing 021, while the inlet channel 024 and the outlet channel 025 are located on the outside of the housing 021. The two ends of the connecting pipe 026 are connected to the inlet channel 024 and the outlet channel 025, respectively. The air inlet 022 and the air outlet 023 are located on a set of opposite sides of the housing 021, and when the liquid cooling door 02 is closed relative to the cabinet 01, the end faces of the air inlet 022 and the air outlet 023 face the cabinet 01.

[0059] In some embodiments, the heat dissipation fins 027 are fixed inside the housing 021, and the heat dissipation fins 027 are used to support the mounting connection pipe 026. The arrangement of the heat dissipation fins 027 increases the heat exchange area compared to air only contacting the connection pipe 026.

[0060] In some embodiments, the heat dissipation fins 27 are metal plates, and multiple heat dissipation fins 027 are arranged along the z-direction of the housing 21.

[0061] It should be noted that: the connecting pipe 026 is located inside the housing 021 and runs along... Figure 1d The air inlet 022 and outlet 023 are bent repeatedly in the middle z direction; Figure 1dThe air inlet 022 and the air outlet 023 are opposite to the connecting pipeline 026, and the opposite means that the air inlet 022 and the air outlet 023 are both directed to the connecting pipeline 026. In some embodiments, the z direction and the y direction are perpendicular. In this description, the z direction is the height direction when the cabinet 01 is normally placed, and the y direction is the direction of the line connecting the two end surfaces of the liquid cooling door 02 opposite to the cabinet 01.

[0062] In combination with the above arrangement, the heat dissipation process of the cabinet 0100 of the machine room is as follows:

[0063] The heat generated by the electronic equipment and the electrical equipment inside the cabinet 01 forms hot air under the action of the fan inside the cabinet 01 of the cabinet 0100, and the hot air is blown to the liquid cooling door 02 by the fan. The hot air enters the liquid cooling door 02 through the air inlet 022 and exchanges heat with the connecting pipeline 026, and the heat is transferred to the cooling liquid in the connecting pipeline 026, and the cooled hot air is blown out through the air outlet 023. This process realizes the heat dissipation inside the cabinet 01.

[0064] In addition, in order to maintain the balance of the pressure inside and outside the cabinet 01 and realize air circulation, the cold air in the machine room will enter the cabinet 01 through the air inlet end of the cabinet 01 under the action of the fan, and exchange heat with the electronic equipment and the electrical equipment to carry away heat. It should be noted that the air inlet end of the cabinet 01 is usually arranged on the cabinet 01. In some embodiments, the air inlet end of the cabinet 01 and the liquid cooling door 02 are distributed on two opposite surfaces of the cabinet 01.

[0065] As can be seen from the above description, the cooling liquid circulation channel 028 is the main component for cooling the hot air in the cabinet 0100. If the cooling liquid circulation channel 028 is blocked, the hot air passing through it cannot be cooled, which affects the heat exchange function of the liquid cooling door 02 and affects the normal work of the equipment in the cabinet 0100.

[0066] In view of the above problems, the embodiment of the present application discloses a liquid cooling door 2 capable of monitoring whether the cooling liquid circulation channel 028 is blocked.

[0067] Figures 2a to 2d Both show the structure of the cabinet 100 provided with the liquid cooling door 2 according to the present application, wherein, Figure 2a and Figure 2b are the structure diagram of the cabinet 100 when the liquid cooling door 2 is opened and the front view of the cabinet 100 when the liquid cooling door 2 is closed, respectively; Figure 2c and Figure 2d are both structure diagrams of the liquid cooling door 2.

[0068] As Figures 2a to 2dAs shown, the cabinet 100 comprises a cabinet body 1 and a liquid cooling door 2. The cabinet body 1 is internally provided with electronic equipment and / or electrical equipment, and the cooling door 2 is hinged to the cabinet body 1 and has a heat exchange function. In addition, the cabinet body 1 is internally provided with a controller 11.

[0069] The liquid cooling door 2 comprises a shell 21, heat dissipation fins 27 and a cooling liquid circulation passage 28. The cooling liquid circulation passage 28 comprises an inlet passage 24, an outlet passage 25 and a connecting pipeline 26. The shell 21 is provided with an air inlet 22 and an air outlet 23.

[0070] The connecting relationship and relative position relationship of the shell 21, the heat dissipation fins 27, the cooling liquid circulation passage 28, the air inlet 22 and the air outlet 23 can be the same as the foregoing corresponding Figures 1a to 1d embodiment content, which will not be described here again.

[0071] In order to detect whether the cooling liquid circulation passage 28 is blocked, in the embodiment, a first temperature sensor 3 is arranged at the inlet passage 24, and a second temperature sensor 4 is arranged at the air outlet 23. The first temperature sensor 3 and the second temperature sensor 4 are in communication connection with the controller 11. The installation position and installation mode of the first temperature sensor 3 on the inlet passage 24 include but are not limited to clamping and threaded connection. The second temperature sensor 4 can be installed on the air outlet 23 in a hanging or bonding manner. In some embodiments, a grille is arranged at the air outlet 23, and the second temperature sensor 4 can be installed on the grille.

[0072] The probe of the first temperature sensor 3 extends into the inside of the inlet passage 24, for detecting the temperature of the cooling liquid in the inlet passage 24 and obtaining a first temperature signal. The temperature of the cooling liquid in the inlet passage 24 can be understood as the inlet temperature of the cooling liquid circulation passage 28. The first temperature sensor 3 sends the first temperature signal to the controller 11.

[0073] The second temperature sensor 4 is used for detecting the temperature of the air discharged from the air outlet 23 and obtaining a second temperature signal. The second temperature sensor 4 sends the second temperature signal to the controller 11.

[0074] After receiving the first temperature signal and the second temperature signal, the controller 11 can determine whether the cooling liquid circulation passage 28 is blocked by using the first temperature signal and the second temperature signal.

[0075] In some embodiments, the controller 11 calculates the difference between the temperature value indicated by the second temperature signal and the temperature value indicated by the first temperature signal, and judges whether the difference is greater than a first preset value. If the controller 11 judges that the difference is greater than the first preset value, it indicates that the cooling liquid circulation passage 28 is blocked. If the controller 11 judges that the difference is not greater than the first preset value, it indicates that the cooling liquid circulation passage 28 is not blocked.

[0076] It should be noted that the first preset value can be a specific value or a range value. In some embodiments, the first preset value can be set to 5℃, 8℃ or 10℃, or the first preset value can be set to 5℃-10℃.

[0077] It should also be noted that in order to remind the user that the cooling liquid circulation channel 28 is blocked, a blockage alarm device can also be installed on the cabinet 100, and the blockage alarm device is in communication connection with the controller 11. When the controller 11 determines that the cooling liquid circulation channel 28 is blocked, a control signal is sent to control the blockage alarm device to alarm.

[0078] In some embodiments, the blockage alarm device can be a sound alarm device or a light alarm device.

[0079] The liquid cooling door 2 can include one or more second temperature sensors 4. The foregoing embodiments are introduced by taking the liquid cooling door 2 including one second temperature sensor as an example. Figure 2e The liquid cooling door 2 shown is provided with three second temperature sensors 4. The following describes the liquid cooling door 2 provided with three second temperature sensors 4, of course, the liquid cooling door 2 can also be provided with other numbers of second temperature sensors 4, and the working process of each temperature sensor 5 and the controller 11 can refer to the content of this embodiment.

[0080] As shown in Figure 2e The three second temperature sensors 4 are uniformly arranged along the z direction of the air outlet 23, and the three second temperature sensors 4 can detect the air outlet temperature at different positions along the height direction of the air outlet 23.

[0081] The second temperature sensor 4 at the first position is used to detect the temperature of the air discharged by the air outlet 23 at the first position, and obtain a first position temperature signal. The second temperature sensor 4 at the first position is also used to send the first position temperature signal to the controller 11.

[0082] The second temperature sensor 4 at the second position is used to detect the temperature of the air discharged by the air outlet 23 at the second position, and obtain a second position temperature signal. The second temperature sensor 4 at the second position is also used to send the second position temperature signal to the controller 11.

[0083] The second temperature sensor 4 at the third position is used to detect the temperature of the air discharged by the air outlet 23 at the third position, and obtain a third position temperature signal. The second temperature sensor 4 at the third position is also used to send the third position temperature signal to the controller 11.

[0084] After receiving the first position temperature signal, the second position temperature signal, and the third position temperature signal, the controller 11 can use the first position temperature signal, the second position temperature signal, and the third position temperature signal to determine the temperature of the air discharged from the air outlet 23. In some embodiments, the controller 11 calculates the average of the temperature values ​​indicated by the first position temperature signal, the second position temperature signal, and the third position temperature signal, and uses the calculated average value as the temperature of the air discharged from the air outlet 23.

[0085] In this embodiment, multiple second temperature sensors 4 are used to detect the air temperature at different locations of the air outlet 23, and the average value of the temperature values ​​indicated by the multiple second temperature sensors 4 is calculated, which improves the accuracy of detecting the air temperature discharged from the air outlet 23. The controller 11 compares the average value of the second temperature sensors 4 with the temperature detected by the first temperature sensor 3 to determine whether the coolant circulation channel 28 is blocked, which improves the accuracy of detecting whether the coolant circulation channel 28 is blocked.

[0086] It should be noted that the three second temperature sensors 4 can also be arranged at different intervals along the z-direction; of course, multiple second temperature sensors 4 can also be set on the same horizontal plane of the air outlet 23 to improve the accuracy of detecting the temperature of the air discharged from the air outlet 23.

[0087] The above content, in conjunction with the first temperature sensor 3 and the second temperature sensor 4, explains the conditions for determining whether the coolant circulation channel 28 is blocked. In this embodiment, the first temperature sensor 3 on the inlet channel 24 and the dew point temperature of the environment where the cabinet 100 is located can also be used to determine whether condensation will occur in the coolant circulation channel 28.

[0088] The methods for obtaining the dew point temperature of the environment where the cabinet 100 is located include, but are not limited to, the following embodiments:

[0089] like Figure 3a and 3b As shown, Figure 3a This is a schematic diagram of the liquid-cooled door 2. Figure 3b This is a side view of the liquid cooling door 2. A temperature and humidity sensor 5 and a controller 11 are installed inside the cabinet 100. The placement of the temperature and humidity sensor 5 and controller 11 within the cabinet 1 is not specifically limited. In some embodiments, the temperature and humidity sensor 5 can be fixed inside the cabinet 1 and located near the liquid cooling door 2; alternatively, the temperature and humidity sensor 5 can be fixed inside the liquid cooling door 2 and located near the cabinet 1. The installation method of the temperature and humidity sensor 5 and controller 11 is also not specifically limited; for example, they can be connected by adhesive or thread. The relative positions of the temperature and humidity sensor 5 and controller 11 are also not specifically limited; for example, the temperature and humidity sensor 5 and controller 11 can be integrated into the same mounting box.

[0090] The cabinet 1 is internally provided with the controller 11 and the temperature and humidity sensor 5, and should also be installed with electrical equipment and / or electronic equipment.

[0091] The temperature and humidity sensor 5 is used to detect the temperature and humidity of the hot air delivered to the liquid cooling door 2, and obtain a temperature signal and a humidity signal. The temperature signal can indicate the temperature of the environment in which the cooling liquid circulation channel 28 is located, and the humidity signal can indicate the humidity of the environment in which the cooling liquid circulation channel 28 is located. The temperature and humidity sensor 5 can send the temperature signal and the humidity signal to the controller 11. The controller 11 pre-stores a corresponding relationship between temperature, humidity and dew point temperature, which includes the dew point temperature corresponding to the temperature and humidity of the environment in which the cooling liquid circulation channel 28 is located.

[0092] After receiving the temperature signal and the humidity signal, the controller 11 can use the temperature signal and the humidity signal to screen in the corresponding relationship, and screen out the dew point temperature corresponding to the temperature signal and the humidity signal.

[0093] In addition, the user can also obtain the dew point temperature corresponding to the temperature signal and the humidity signal by checking the table by himself / herself, and input it to the controller 11.

[0094] As the embodiment content corresponding Figures 2a to 2d The first temperature sensor 3 is used to detect the temperature of the cooling liquid in the liquid inlet channel 24, and obtain a first temperature signal. The temperature of the cooling liquid in the liquid inlet channel 24 can be understood as the inlet temperature of the cooling liquid circulation channel 28. The first temperature sensor 3 sends the first temperature signal to the controller 11.

[0095] After obtaining the dew point temperature and receiving the first temperature signal, the controller 11 can use the dew point temperature and the first temperature signal to determine whether the liquid inlet channel 24 produces condensation.

[0096] In some embodiments, the controller 11 calculates the difference between the temperature value indicated by the first temperature signal and the dew point temperature, and determines whether the difference is less than a second preset value. If the controller 11 determines that the difference is less than the second preset value, it indicates that the cooling liquid circulation channel 28 has condensation; if the controller 11 determines that the difference is not less than the second preset value, it indicates that the cooling liquid circulation channel 28 does not have condensation.

[0097] It should be noted that the second preset value can be a specific value or a range value. In some embodiments, the second preset value can be set to 3°C, 5°C or 8°C, or the first preset value can be set to 3°C-7°C.

[0098] In order to remind the user that the condensation is generated in the cooling liquid circulation channel 28, the cabinet 100 can be further provided with a condensation alarm device, which is in communication connection with the controller 11. When the controller 11 determines that the condensation is generated in the pipe of the cooling liquid circulation channel 28, a control signal is sent to control the condensation alarm device to alarm.

[0099] In some embodiments, the condensation alarm device can also be a sound alarm device or a light alarm device.

[0100] It should be noted that the condensation alarm device and the blockage alarm device can be the same alarm device or different alarm devices. If the condensation alarm device and the blockage alarm device are the same alarm device, the condensation alarm device and the blockage alarm device can be sound alarm devices, and the alarm modes of the condensation alarm device and the blockage alarm device can be different. For example, the condensation alarm device and the blockage alarm device are both sound alarm devices, the controller 11 determines that the pipe of the cooling liquid circulation channel 28 is blocked, the blockage alarm device plays a first alarm sound, the controller 11 determines that the pipe of the cooling liquid circulation channel 28 generates condensation, and the condensation alarm device plays a second alarm sound. Of course, the first alarm sound and the second alarm sound are different.

[0101] It should be further noted that the first temperature sensor 3, the second temperature sensor 4 and the temperature and humidity sensor 5 can be simultaneously arranged in the cabinet 100, so that the liquid cooling door 2 has the function of simultaneously detecting whether the cooling liquid circulation channel 28 is blocked and whether the cooling liquid circulation channel 28 generates condensation.

[0102] The above describes the judgment condition of whether the condensation is generated in the cooling liquid circulation channel 28 in combination with the first temperature sensor 3 and the temperature and humidity sensor 5. In some embodiments, if the controller 11 determines that the condensation problem exists in the pipe, the controller 11 can solve the condensation problem by increasing the temperature of the cooling liquid input in the liquid inlet channel 24.

[0103] Figure 4 The control logic diagram of the control system for adjusting the temperature of the cooling liquid in the liquid inlet channel.

[0104] As Figure 4 , the control system comprises a machine room control end, a refrigeration equipment controller, and a water chiller and a water cooling tower.

[0105] The controller 11 is in communication connection with the machine room control end, the machine room control end is in communication connection with the refrigeration equipment controller, the refrigeration equipment controller is in communication connection with the water chiller and the water cooling tower, and the output end of the water chiller and the output end of the water cooling tower are both in communication with the liquid inlet channel 24.

[0106] As previously described in correspondence with Figure 3a and Figure 3bIn the embodiment, the controller 11 can determine the condensation of the cooling liquid circulation passage 28 by using the first temperature signal detected by the first temperature sensor 3 and the temperature signal and the humidity signal detected by the temperature and humidity sensor, and send a first signal to the machine room control end.

[0107] The machine room control end receives the first signal and analyzes the first signal to determine that the condensation of the cooling liquid circulation passage 28 occurs, and then generates a first control instruction and sends the first control instruction to the refrigeration equipment controller.

[0108] The refrigeration equipment controller receives the first control instruction and analyzes the first control instruction to determine that the temperature of the cooling liquid circulation passage 28 needs to be increased, and then generates a second control instruction and sends the second control instruction to the water chiller and the water cooling tower.

[0109] The water chiller and the water cooling tower receive the second control instruction and analyze the second control instruction to determine that the refrigeration power of the water chiller and the water cooling tower needs to be reduced to increase the temperature of the cooling liquid circulation passage 28, and then the compressor power of the water chiller and the water cooling tower is reduced, so that the temperature of the cooling liquid output by the water chiller and the water cooling tower is increased, and then the temperature of the cooling liquid input into the liquid inlet passage 24 is increased.

[0110] In order to avoid the influence of the increase of the temperature of the cooling liquid in the liquid inlet passage 24 on the determination result of whether the cooling liquid circulation passage 28 is blocked, the controller 11 can detect whether the cooling liquid circulation passage 28 is blocked when the controller 11 determines that the cooling liquid circulation passage 28 does not have condensation.

[0111] The above embodiment of the present application is described by taking the first temperature sensor 3, the second temperature sensor 4, and the temperature and humidity sensor 5 as examples to detect whether the cooling liquid circulation passage 28 is blocked or has condensation. The first temperature sensor 3, the second temperature sensor 4, and the temperature and humidity sensor 5 can be understood as monitoring components, which have the function of monitoring temperature and / or humidity. Of course, other components that can detect temperature and / or humidity also belong to the scope of the monitoring components proposed in the embodiment of the present application.

Claims

1. A liquid-cooled door, characterized in that, include: Housing, coolant circulation channels, monitoring components, and controller; The housing is provided with an air inlet and an air outlet. The air inlet is used to allow air to enter the housing, and the air outlet is used to discharge the air that has exchanged heat with the coolant circulation channel inside the housing. The coolant circulation channel includes a reciprocating connecting pipe. The monitoring component is used to detect the inlet temperature of the coolant circulation channel to obtain a first temperature signal, and to detect the temperature of the air discharged from the housing to obtain a second temperature signal; The controller is used to determine that if the difference between the temperature value indicated by the first temperature signal and the temperature value indicated by the second temperature signal is greater than a first preset value, then it is determined that the coolant circulation channel is blocked. The monitoring component includes: a first temperature sensor and multiple second temperature sensors, wherein: The first temperature sensor is disposed in the coolant circulation channel and is used to detect the inlet temperature of the coolant circulation channel; The second temperature sensor is located at different positions at the air outlet of the housing to detect the temperature of the air discharged from the housing; Multiple second temperature sensors are arranged along the height direction of the air outlet. When the controller determines that the difference between the temperature value indicated by the first temperature signal and the temperature value indicated by the second temperature signal is greater than a first preset value, it determines that the coolant circulation channel is blocked. The controller is used to: calculate the average value of the temperature values ​​indicated by the multiple second temperature sensors, and determine that the difference between the temperature value indicated by the first temperature signal and the calculated average value is greater than a first preset value, and then determine that the coolant circulation channel is blocked.

2. The liquid-cooled door according to claim 1, characterized in that, The coolant circulation channel includes an inlet channel, a connecting pipe, and an outlet channel connected in sequence. Both the liquid inlet channel and the liquid outlet channel extend out of the housing. The connecting pipe is located inside the housing and bends back and forth within the housing. The first temperature sensor is located in the liquid inlet channel.

3. The liquid-cooled door according to claim 2, characterized in that, It also includes heat dissipation fins installed inside the housing, and the connecting pipe is fixedly connected to the heat dissipation fins.

4. The liquid-cooled door according to claim 3, characterized in that, The heat dissipation fins are arranged in multiple ways within the housing.

5. The liquid-cooled door according to claim 1, characterized in that, The air outlet and the air inlet are distributed on a set of opposite surfaces of the housing, and both the air outlet and the air inlet face the coolant circulation channel.

6. The liquid-cooled door according to any one of claims 1 to 5, characterized in that, It also includes a blockage alarm device, which is connected to the controller and is used by the controller to determine if the coolant circulation channel is blocked and to issue an alarm.

7. The liquid-cooled door according to any one of claims 1 to 5, characterized in that, It also includes a temperature and humidity sensor, which is connected to the controller and is used to detect the temperature and humidity of the hot air at the air inlet; The controller is also used to acquire the dew point temperature corresponding to the temperature and humidity detected by the temperature and humidity sensor, and to determine that if the difference between the inlet temperature and the dew point temperature of the coolant circulation channel detected by the monitoring component is less than a second preset value, then it is determined that condensation has occurred in the coolant circulation channel.

8. The liquid-cooled door according to claim 7, characterized in that, When the controller acquires the dew point temperature corresponding to the temperature and humidity detected by the temperature and humidity sensor, it is used for: From the pre-stored correspondence between temperature, humidity and dew point temperature in the controller, the dew point temperature corresponding to the temperature and humidity obtained by the temperature and humidity sensor is screened out.

9. The liquid-cooled door according to claim 7, characterized in that, It also includes a condensation alarm device, which is connected to the controller and is used by the controller to determine when condensation occurs in the coolant circulation channel and to issue an alarm.

10. A server rack, characterized in that, It includes a cabinet, a monitoring component as claimed in claim 1, a controller as claimed in any one of claims 1, 6 to 9, and a housing and coolant circulation channel for a liquid-cooled door as claimed in any one of claims 1, 2 to 5.

11. The cabinet according to claim 10, characterized in that, The controller is installed inside the cabinet, and a temperature and humidity sensor is also installed inside the cabinet. The temperature and humidity sensor is used to detect the temperature and humidity of the air delivered to the air inlet. The temperature and humidity sensor is connected to the controller and is used to detect the temperature and humidity of the air at the air inlet; The controller is also used to acquire the dew point temperature corresponding to the temperature and humidity detected by the temperature and humidity sensor, and to determine that if the difference between the temperature detected by the first temperature sensor and the dew point temperature is less than a second preset value, then it is determined that condensation has occurred in the coolant circulation channel.

12. The cabinet according to claim 11, characterized in that, The temperature and humidity sensor is integrated with the controller in the same mounting box.

13. A control system, characterized in that, Includes a computer room control terminal, a refrigeration equipment controller, a chiller unit and a water-cooled tower, and a cabinet as described in any one of claims 10 to 12; The computer room control terminal is used to receive a first signal sent by the controller and generate a first control command. The first signal is generated by the controller when it determines that condensation occurs in the coolant circulation channel. The refrigeration equipment controller is used to receive the first control command and generate a second control command; The chiller unit and the water-cooled tower are used to receive the second control command and, in response to the second control command, reduce the compressor power of the chiller unit and the water-cooled tower. The output ends of the chiller unit and the water-cooled tower are both connected to the coolant circulation channel.

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