CN113973473A - A kind of energy-saving refrigeration of data center computer room and refrigeration method thereof - Google Patents
A kind of energy-saving refrigeration of data center computer room and refrigeration method thereof Download PDFInfo
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- CN113973473A CN113973473A CN202111164107.6A CN202111164107A CN113973473A CN 113973473 A CN113973473 A CN 113973473A CN 202111164107 A CN202111164107 A CN 202111164107A CN 113973473 A CN113973473 A CN 113973473A
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- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
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- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
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Abstract
The invention discloses an energy-saving refrigerating system of a data center machine room and a refrigerating method thereof, wherein the refrigerating system divides the space in the machine room into at least two adjacent subregions by using the same heat exchange wall, and the heat exchange wall is embedded with at least one external circulation pipeline, internal circulation air channels with the same number as the subregions and an air guide device connected with the end parts of the internal circulation air channels; each sub-area forms internal circulation airflow through the air guide device corresponding to the area on the heat exchange wall body and the internal circulation air duct corresponding to the area; the external circulation pipeline is connected with an external circulation subsystem, and the external circulation subsystem is used for determining the heat exchange mode of a plurality of internal circulation air channels in the heat exchange wall according to the temperature of the internal circulation air flow. The invention can reduce the running power required by the air guide device so as to realize the energy-saving effect; in addition, the heat exchange wall can switch various heat exchange modes according to actual conditions to achieve the purpose of saving energy.
Description
Technical Field
The invention belongs to the technical field of machine room refrigeration, and particularly relates to energy-saving refrigeration and a refrigeration method for a data center machine room.
Background
At present, a large amount of unit equipment has been placed to data center computer lab, and unit equipment can produce certain heat at the during operation, if the high temperature, then can lead to the magnetic disk tape physics of the equipment in the computer lab to warp, finally leads to equipment operation life to receive the influence, consequently need refrigerate the cooling in order to maintain equipment normal operating to data center computer lab.
However, the area of the existing data center machine room is relatively large, and if circulating airflow is generated in the horizontal direction of the data center machine room, the heat generated in the large-area machine room can be taken away only by the airflow with relatively strong wind speed generated by the fan with relatively large power, so that the power consumption required by a cooling system of the data center machine room is relatively high; and the energy-conserving cooling system that current data center computer lab corresponds generally only possesses a refrigeration mode, and if only use air conditioner refrigeration, the air conditioner is opened for a long time and is consumed the energy also relatively more, if use natural wind to cool down the computer lab, then can only use winter or the higher region in height above sea level just can realize the cooling function, and then can't utilize natural wind to cool down under high temperature weather, still can not reach better energy-conserving effect.
Disclosure of Invention
In order to overcome the defects of the prior art, one of the purposes of the invention is to provide an energy-saving refrigeration system of a data center machine room, which can reduce the energy consumption of the refrigeration system and achieve the energy-saving effect.
The invention also aims to provide an energy-saving refrigeration method for a data center machine room, which is applied to the refrigeration system.
One of the purposes of the invention is realized by adopting the following technical scheme:
an energy-saving refrigeration system of a data center machine room divides the space in the machine room into at least two adjacent subregions by utilizing the same heat exchange wall, and at least one external circulation pipeline, internal circulation air ducts with the same number as the subregions and an air guide device connected with the end part of the internal circulation air duct are embedded in the heat exchange wall; each sub-area forms internal circulation airflow through the air guide device corresponding to the area on the heat exchange wall body and the internal circulation air duct corresponding to the area; the outer circulation pipeline is connected with the outer circulation subsystem, the outer circulation subsystem is used for determining a heat exchange mode of a plurality of inner circulation air channels in the heat exchange wall according to the temperature of inner circulation airflow, and the heat exchange mode comprises that heat exchange is directly carried out among the plurality of inner circulation air channels in the heat exchange wall or heat exchange is carried out among the plurality of inner circulation air channels and the outer circulation pipeline.
Further, the outer circulation subsystem includes:
the ventilation module is used for introducing circularly flowing natural wind into the external circulation pipeline when the external circulation pipeline is started;
the cooling module is used for introducing circularly flowing refrigerating gas or liquid into the external circulation pipeline during starting;
and the central control module is connected with the ventilation module and the cooling module and is used for controlling the working states of the ventilation module and the cooling module.
Furthermore, each internal circulation air duct is provided with a temperature sensor, and the temperature sensor of each internal circulation air duct is connected with the central control module and used for reporting and detecting the obtained air flow temperature in each internal circulation air duct.
Further, the air ducting on the heat exchange wall body includes:
the air deflectors are sequentially arranged and pivoted at the air opening of the heat exchange wall;
the driving assembly is connected with the air deflector and the central control module and is used for driving the air deflector to move in an opening and closing manner and/or rotate around the axis of the air port according to the instruction of the central control module;
and the fan assembly is connected with the central control module and arranged at the air port of the heat exchange wall, the fan assembly of the air guide device in the opposite position in the same sub-area is installed in the opposite direction, and the fan assembly is used for generating circulating air flows with different wind speeds according to the instruction of the central control module.
Furthermore, the heat exchange wall body is of a single-wall structure or a special-shaped structure formed by splicing two or more single walls.
Further, the inner circulation air duct and the outer circulation pipeline are both provided with aluminum profile pipelines, and the inner circulation air duct is attached to the end face of the outer circulation pipeline.
Furthermore, the end face of the cross section of the outer circulation pipeline, which is opposite to the inner circulation air duct, is set to be an arc-shaped end face matched with the cross section of the inner circulation air duct.
The second purpose of the invention is realized by adopting the following technical scheme:
an energy-saving refrigeration method of a data center machine room is applied to the energy-saving refrigeration system of the data center machine room, and the refrigeration method comprises the following steps:
controlling the air guide device corresponding to each sub-area on the heat exchange wall to be started so as to generate circulating air flow in each sub-area;
and receiving and detecting the obtained airflow temperature of each sub-region, comparing the airflow temperature of each sub-region, and controlling the working state of the outer circulation subsystem according to the comparison result so as to change the heat exchange mode among the plurality of inner circulation air channels in the heat exchange wall body, thereby realizing the cooling operation of all the sub-regions.
Further, the method for comparing the airflow temperature of each sub-area comprises the following steps:
if the temperature of the airflow of each sub-area is lower than the preset standard temperature, the external circulation subsystem is closed, and direct heat exchange is carried out among a plurality of internal circulation air channels in the heat exchange wall;
if the difference value between the average value of the airflow temperatures of all the sub-areas and the preset standard temperature is kept within the preset range, and the outside environment temperature is lower than the average value of the airflow temperatures of all the sub-areas, starting a ventilation module of the outer circulation subsystem to introduce natural wind into the outer circulation pipeline, so that the airflow in the plurality of inner circulation air channels in the heat exchange wall body exchanges heat with the natural wind in the outer circulation pipeline;
and if the difference value between the average value of the airflow temperatures of all the sub-areas and the preset standard temperature exceeds the preset range and the external environment temperature is higher than the average value of the airflow temperatures of all the sub-areas, starting a cooling module of the external circulation subsystem to introduce refrigerating gas or liquid into the external circulation pipeline, so that the airflow in the plurality of internal circulation air channels in the heat exchange wall exchanges heat with the refrigerating gas or liquid in the external circulation pipeline.
Further, if the temperature of the airflow circulating in any sub-area is higher than the temperature of the airflow circulating in other sub-areas through detection, the air guide device corresponding to the sub-area with the relatively high temperature is controlled to execute the speed-up operation.
Compared with the prior art, the invention has the beneficial effects that:
the space in the machine room is divided into a plurality of sub-areas by the heat exchange wall, the area of the sub-areas is reduced, so that an airflow circulation path in the sub-areas is shortened, and the running power required by the air guide device is reduced, thereby realizing the energy-saving effect; in addition, the heat exchange wall body can cool the internal circulation air channels of each sub-area in an external circulation mode, and the corresponding heat exchange mode can be automatically selected according to the temperature condition of each internal circulation air channel, so that multiple heat exchange modes can be switched according to actual conditions, and energy consumption is reduced.
Drawings
FIG. 1 is a schematic diagram of an energy-saving refrigeration system of a data center room of the present invention;
FIG. 2 is a schematic view of a heat exchange wall of the single-wall structure of the present invention;
FIG. 3 is a schematic view of the heat exchange wall body with an X-shaped structure according to the present invention;
fig. 4 is a schematic flow chart of an energy-saving refrigeration method for a data center room according to the present invention.
In the figure: 1. a heat exchange wall body; 2. an internal circulation air duct; 3. an external circulation pipe; 4. an air guide device; 5. an outer circulation subsystem.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that any combination of the embodiments or technical features described below can be used to form a new embodiment without conflict.
Example one
This embodiment provides an energy-conserving refrigerating system of data center computer lab, and this embodiment realizes the refrigerated effect of energy-conserving in the computer lab through heat transfer mode that adopts in heat transfer wall body 1 and the heat transfer wall body 1.
The heat exchange wall 1 of the embodiment can be improved in an original wall in a machine room, and a new heat exchange wall 1 can be added in the original machine room. In this embodiment, the heat exchange wall 1 may be disposed according to the original spatial distribution in the machine room, and the space in the machine room may be divided into a plurality of sub-areas by using the heat exchange wall 1.
The heat exchange wall body 1 in the embodiment can be a single-wall structure, and the single-wall structure can be a linear wall or an arc wall; in addition, the heat exchange wall 1 may also be configured as a special-shaped structure formed by splicing a plurality of single walls, such as a "Y" shaped structure, an "X" shaped structure, and the like, wherein the plurality of single walls in the special-shaped structure wall may be communicated with each other. As shown in fig. 2, when the heat exchange wall 1 is a single-wall structure, the space in the machine room can be divided into two adjacent sub-areas by using the same heat exchange wall 1; if the heat exchange wall body 1 is in a Y-shaped structure, the space in the machine room can be divided into three sub-areas; as shown in fig. 3, if the heat exchange wall 1 is configured as an "X" shaped structure, the space in the machine room can be divided into four sub-areas.
As shown in fig. 1, an external circulation pipeline 3 and an internal circulation air duct 2 are embedded in the heat exchange wall 1, wherein the number of the external circulation pipelines 3 is at least one, and can be adjusted according to the arrangement rule and the number of the internal circulation air ducts 2; the external circulation can be realized by utilizing the external circulation pipeline 3 and the external circulation subsystem 5 communicated with the external circulation pipeline 3, and the internal circulation air duct 2 in the heat exchange wall body 1 is subjected to heat exchange by utilizing the external circulation. The number of the internal circulation air ducts 2 in the heat exchange wall 1 is the same as that of the sub-areas. And inner loop wind channel 2 and outer circulating line 3 all can be equipped with the aluminium alloy pipeline, and the aluminium alloy pipeline has better thermal diffusivity relatively to accelerate heat exchange efficiency, simultaneously inner loop wind channel 2 and outer circulating line 3 all can be established to snakelike structure, and the flow time of multiplicable gas or liquid through crooked pipeline, thereby it is long when increasing the cooling refrigeration, can reach better cooling refrigeration effect. And the internal circulation air duct 2 is tightly attached to the end surface of the external circulation duct 3, the end surface of the cross section of the external circulation duct 3, which is right opposite to the internal circulation air duct 2, is arranged to be an arc-shaped end surface matched with the cross section of the internal circulation air duct 2, so that the contact area between the external circulation duct 3 and the internal circulation air duct 2 is increased, and the heat exchange effect of the external circulation duct is improved.
As shown in fig. 2 and 3, the single-line arrow direction outside the heat exchange wall 1 in the drawings is the airflow direction, the single-line arrow direction inside the heat exchange wall 1 is the airflow direction in the internal circulation air duct 2, and the double-line arrow direction inside the heat exchange wall 1 is the flow direction of the gas or liquid inside the external circulation pipeline 3; in the embodiment, the heat exchange effect is improved by the fact that the flowing direction of the gas or liquid in the external circulation pipeline 3 is opposite to the flowing direction of the airflow in the internal circulation air duct 2.
Meanwhile, a plurality of air guide devices 4 are further arranged on the heat exchange wall body 1, at least two air guide devices 4 are arranged in the same sub-area, air is discharged by one air guide device 4, and air is introduced by the other air guide device 4; the air guide device 4 of any sub-area is communicated with the internal circulation air duct 2 corresponding to the sub-area, namely, the two end parts of the internal circulation air duct 2 are respectively connected with the air guide device 4, when the air guide device 4 is started, internal circulation air flow can be formed in the sub-area, and the equipment in the sub-area is cooled by the internal circulation air flow.
Because the area of the sub-region obtained after the space in the machine room is divided by the heat exchange wall body 1 is relatively reduced, the air guide device 4 can be driven to start only by relatively low energy consumption so as to form internal circulation airflow in the sub-region, so that equipment in the sub-region is refrigerated or cooled, and the energy-saving effect is achieved.
In addition, the external circulation subsystem 5 comprises a ventilation module, a cooling module and a central control module, wherein the ventilation module is used for introducing circulating natural wind into the external circulation pipeline 3 when the external circulation subsystem is started; the cooling module is used for introducing circularly flowing refrigerating gas or liquid into the external circulation pipeline 3 when the external circulation pipeline is started; and the central control module is connected with the ventilation module and the cooling module and is used for controlling the working states of the ventilation module and the cooling module. The ventilation module can be a fan, and after the fan is started, outside air is introduced into the external circulation pipeline 3; and the cooling module can be an air conditioner or a cold water system formed by combining a cooling tower, a condenser and the like.
In the embodiment, the central control module controls the working states of the ventilation module and the cooling module according to the air temperature corresponding to each sub-region, a temperature sensor is arranged in each internal circulation air duct 2, the temperature sensor is in signal connection with the central control module, the temperature sensor can be used for measuring the air temperature in each internal circulation air duct 2, if the air temperature of each sub-region is lower than a preset standard temperature, the current temperature in the machine room reaches the standard, no external cold air is required to be added, the external circulation subsystem 5 can be closed at the moment, and direct heat exchange is performed among the multiple internal circulation air ducts 2 in the heat exchange wall 1; if the difference value between the average value of the airflow temperatures of all the sub-areas and the preset standard temperature is kept within the preset range, and the outside environment temperature is lower than the average value of the airflow temperatures of all the sub-areas, the ventilation module of the external circulation subsystem 5 can be started to introduce natural wind into the external circulation pipeline 3, so that the airflow in the internal circulation air channels 2 in the heat exchange wall 1 and the natural wind in the external circulation pipeline 3 exchange heat; if the difference between the average value of the airflow temperatures of all the sub-areas and the preset standard temperature exceeds the preset range and the outside environment temperature is higher than the average value of the airflow temperatures of all the sub-areas, at this time, the cooling module of the external circulation subsystem 5 needs to be started to introduce the refrigerating gas or liquid into the external circulation pipeline 3, so that the airflow in the plurality of internal circulation air channels 2 in the heat exchange wall 1 exchanges heat with the refrigerating gas or liquid in the external circulation pipeline 3, and the circulating airflow temperature of the sub-areas in the machine room is reduced.
In the embodiment, the heat exchange mode of the multiple internal circulation air channels 2 in the heat exchange wall 1 is changed on the basis of the air flow temperature of the sub-areas in the machine room and the external temperature, and under the condition that the air flow temperature in all the sub-areas is relatively low, the internal circulation air channels 2 directly exchange heat, so that the refrigeration function is not required to be started, and the energy consumption is reduced; when the temperature of the airflow in the sub-area in the machine room is not too high and is corresponding to the relatively low ambient temperature of the outside, natural air can be introduced, and the airflow in the internal circulation air duct 2 is cooled by utilizing the natural air; when the temperature of airflow in the subarea in the machine room is too high and the temperature of the external environment is relatively high, cold air or refrigerating liquid needs to be introduced, so that the temperature in the machine room is quickly reduced; compared with the traditional method of adjusting the temperature in the machine room only by using an air conditioner, the method of controlling the temperature in the machine room by changing the heat exchange mode in the heat exchange wall body 1 is more energy-saving.
The air guide device 4 on the heat exchange wall 1 in this embodiment comprises an air guide plate, a driving assembly and a fan assembly; in the embodiment, a plurality of air deflectors are sequentially arranged and pivoted on the air opening of the heat exchange wall body 1; the driving assembly is connected with the air deflector and the central control module and is used for driving the air deflector to move on and off and/or rotate around the axis of the air port according to the instruction of the central control module; the fan assembly is connected with the central control module and arranged at the air opening of the heat exchange wall body 1, the fan assembly mounting directions of the air guide devices 4 at the opposite positions in the same sub-area are opposite, the air guide devices 4 at the opposite positions can be used for generating circulating air flow in the sub-area, and meanwhile, the fan assembly can also generate circulating air flow with different wind speeds according to the instruction of the central control module.
After the central control module receives the airflow temperature data reported by each sub-area, the heat exchange mode corresponding to the heat exchange wall 1 can be selected according to the airflow temperature of each sub-area, and the swing angle and the air outlet speed of the air guide device 4 of each sub-area can be determined according to the airflow temperature data; specifically, when the temperature of any sub-area is relatively higher than the temperatures of other sub-areas, the air outlet speed of the air guide device 4 can be controlled to be increased, and the flow speed of the air flow in the sub-area is increased, so that heat generated by equipment in a machine room is taken away quickly, and the cooling and refrigerating efficiency is increased; in addition, the air guide device 4 of the sub-area can be adjusted to be in a swing mode, so that the wind sweeping range is increased, and the temperature in the sub-area is relatively uniform.
Example two
The embodiment provides an energy-saving refrigeration method for a data center room, which is applied to an energy-saving refrigeration system for a data center room according to the embodiment, and as shown in fig. 4, the refrigeration method includes:
controlling the air guide device 4 corresponding to each sub-area on the heat exchange wall 1 to be started to generate circulating air flow in each sub-area;
and receiving and detecting the obtained airflow temperature of each sub-region, comparing the airflow temperature of each sub-region, and controlling the working state of the outer circulation subsystem 5 according to the comparison result to change the heat exchange mode among the plurality of inner circulation air channels 2 in the heat exchange wall 1, thereby realizing the cooling operation of all the sub-regions.
In this embodiment, the method for comparing the airflow temperature of each sub-region includes:
if the temperature of the airflow in each sub-area is lower than the preset standard temperature, the external circulation subsystem 5 is closed, and direct heat exchange is carried out among the multiple internal circulation air channels 2 in the heat exchange wall 1;
if the difference value between the average value of the airflow temperatures of all the sub-areas and the preset standard temperature is kept within the preset range, and the outside environment temperature is lower than the average value of the airflow temperatures of all the sub-areas, starting a ventilation module of the external circulation subsystem 5 to introduce natural wind into the external circulation pipeline 3, so that the airflow in the multiple internal circulation air channels 2 in the heat exchange wall 1 exchanges heat with the natural wind in the external circulation pipeline 3;
if the difference between the average value of the airflow temperatures of all the sub-areas and the preset standard temperature exceeds the preset range and the outside environment temperature is higher than the average value of the airflow temperatures of all the sub-areas, the cooling module of the external circulation subsystem 5 is started to introduce refrigerating gas or liquid into the external circulation pipeline 3, so that the airflow in the internal circulation air channels 2 in the heat exchange wall 1 and the refrigerating gas or liquid in the external circulation pipeline 3 exchange heat.
In addition, if it is detected that the temperature of the airflow circulating in any sub-area is higher than the temperature of the airflow circulating in other sub-areas, the air guide device 4 corresponding to the sub-area with the relatively high temperature is controlled to execute the speed-up operation, so that the cooling and refrigerating speed of the sub-area with the relatively high temperature is increased.
The method in this embodiment and the system in the foregoing embodiment are based on two aspects of the same inventive concept, and the system implementation process has been described in detail in the foregoing, so that those skilled in the art can clearly understand the method implementation process in this embodiment according to the foregoing description, and for the brevity of the description, details are not repeated here.
The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are within the protection scope of the present invention.
Claims (10)
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| CN202111164107.6A CN113973473A (en) | 2021-09-30 | 2021-09-30 | A kind of energy-saving refrigeration of data center computer room and refrigeration method thereof |
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| CN202111164107.6A CN113973473A (en) | 2021-09-30 | 2021-09-30 | A kind of energy-saving refrigeration of data center computer room and refrigeration method thereof |
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Cited By (1)
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