CN117171532B - Leakage monitoring method and device for air conditioner air supply system of data center module machine room - Google Patents

Leakage monitoring method and device for air conditioner air supply system of data center module machine room Download PDF

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CN117171532B
CN117171532B CN202311425759.XA CN202311425759A CN117171532B CN 117171532 B CN117171532 B CN 117171532B CN 202311425759 A CN202311425759 A CN 202311425759A CN 117171532 B CN117171532 B CN 117171532B
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air supply
machine room
air
data center
gap
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CN117171532A (en
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张振国
贾琨
李鹏
陈晓宇
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China Electronics Engineering Design Institute Co Ltd
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China Electronics Engineering Design Institute Co Ltd
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

Abstract

The invention discloses a leakage monitoring method and device for an air conditioner air supply system of a data center module machine room, which specifically comprise the following steps: acquiring area data in a data center module machine room; acquiring and analyzing pressure difference data of the air supply outlet, the data center module machine room, the raised floor gap and the data center module machine room; based on the pressure difference data, analyzing the relation between the air output at the air supply port of the area where each row of cabinets are positioned and the air output at the gap of the raised floor; and (5) giving an air conditioner air supply leakage monitoring result aiming at the area where each row of cabinets are located. The invention can rapidly evaluate the leakage condition of the air supply of the precision air conditioner of the data center module machine room, and provides support for the environmental diagnosis and optimization of the data center module machine room.

Description

Leakage monitoring method and device for air conditioner air supply system of data center module machine room
Technical Field
The invention belongs to the technical field of data center monitoring, and particularly relates to a leakage monitoring method and device for an air conditioner air supply system of a data center module machine room.
Background
Ideally, the air-conditioning air supply of the data center module machine room is sent to the server inlet through the air supply opening of the raised floor, so that the cooling purpose is achieved. Under the action of the air flow pressure field under the raised floors, part of air conditioner air supply can leak outwards through the gaps between the raised floors, so that the air conditioner refrigeration is wasted, and the cooling efficiency of the air conditioner is reduced. At present, the leakage quantity of air supply of an air conditioner caused by a gap of a raised floor is difficult to detect through an instrument, and cannot be monitored and diagnosed in real time.
In the prior art, a temperature sensor is generally arranged to monitor the temperature change of different areas to judge the leakage condition. Patent of inventionCN106843103a discloses a method and a system for judging cold and hot air leakage of a machine room, wherein the method comprises the following steps: selecting an air inlet of each cabinet or an air outlet of each cabinet in two rows of cabinets on two sides of a closed channel as a detection point, collecting the temperature of each detection point in real time, and calculating the temperature average value C of each detection point in preset time i,j The method comprises the steps of carrying out a first treatment on the surface of the According to the temperature average value C of the detection points i,j Calculating the temperature average value T of all detection points on two sides of a closed channel Cav The method comprises the steps of carrying out a first treatment on the surface of the According to the temperature average T of all detection points Cav Judging whether cold and hot air leakage occurs in the whole two rows of cabinets. The temperature data information of the air inlet and the air outlet of the cabinet is collected and data analysis is performed, so that whether the whole leakage of the machine room occurs or not is judged, and the leakage state of cold and hot air of the machine room can be monitored in real time.
However, when the temperature is monitored in real time, a large amount of temperature of the plurality of rows of cabinets is required to be collected within a preset time, and the cost of the sensor is increased. And whether the leakage of cold and hot air occurs is judged by calculating the average temperature in the preset time, so that when the leakage is just started, the calculated average temperature results have small fluctuation, and the judgment result is misjudged as that the leakage does not occur, and finally, the response speed of the judgment method to the leakage is slower. The existing judging method only takes a cabinet as a monitoring object to judge whether the mechanism leaks or not, and cannot be suitable for the leakage condition of air supply of an air conditioner when the air supply is sent to a server inlet through an air supply port of a raised floor.
Therefore, how to quickly and accurately evaluate the leakage condition of the air supply of the precision air conditioner of the data center module machine room is a problem to be solved by the technicians in the field.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a leakage monitoring method and device for an air conditioner air supply system of a data center module machine room. Acquiring area data in a data center module machine room; acquiring and analyzing differential pressure data of the air outlet, the data center module machine room, the raised floor gap and the data center module machine room; based on the pressure difference data, analyzing the relation between the air output at the air supply port of each row of cabinet areas and the air output at the gap of the raised floor; and giving the air conditioner air supply leakage monitoring results for the cabinet areas of each column. According to the invention, by acquiring and analyzing the differential pressure data of different parts of the raised floor and the environment of the data center module machine room, the rapid and accurate evaluation of the air supply leakage condition of the air conditioner of the data center module machine room can be realized, the support is provided for the diagnosis and optimization of the environment of the data center module machine room, the running risk of the data center module machine room is reduced, the waste of air conditioner refrigeration is reduced, and the cooling efficiency of the air conditioner is improved.
In a first aspect, the present invention provides a method for monitoring leakage of an air conditioning and air supply system of a data center module machine room, where the data center module machine room includes a plurality of columns of cabinets, and the air conditioning and air supply system of the data center module machine room includes: a plurality of spliced raised floors and raised floor gaps at the spliced positions, wherein the raised floors are provided with air supply openings corresponding to the areas where the cabinets are positioned, and air of an air conditioner air supply system is supplied to the inlets of the cabinets through the air supply openings;
the leakage monitoring method specifically comprises the following steps:
acquiring area data in a data center module machine room;
acquiring and analyzing pressure difference data of the air supply outlet, the data center module machine room, the raised floor gap and the data center module machine room;
based on the pressure difference data, analyzing the relation between the air output at the air supply port of the area where each row of cabinets are positioned and the air output at the gap of the raised floor;
and giving the air conditioner air supply leakage monitoring results for the cabinet areas of each column.
Further, the area data in the data center module machine room comprises the area of the data center module machine room and the area of the air supply outlet corresponding to the area where each row of cabinets are located.
Further, the method for acquiring and analyzing the differential pressure data of the air supply outlet and the data center module machine room, the raised floor gap and the data center module machine room specifically comprises the following steps:
arranging a plurality of first pressure difference measuring points and second pressure difference measuring points in the area where each row of cabinet is located, and acquiring test data of each pressure difference measuring point, wherein the first pressure difference measuring points are used for testing the air supply speed of an air supply port and the test pressure difference between the air supply port and a data center module machine room, and the second pressure difference measuring points are used for testing the air supply speed of an overhead floor gap and the test pressure difference between the overhead floor gap and the data center module machine room;
and acquiring and combining the aperture ratio of the air supply opening, the aperture ratio of the raised floor gap and the air density, and correcting each test pressure difference to respectively obtain pressure difference correction data of the air supply opening and the data center module machine room and pressure difference correction data of the raised floor gap and the data center module machine room.
Further, the air supply outlet opening ratio, the raised floor gap opening ratio and the air density are obtained and combined to correct each test pressure difference, so as to respectively obtain pressure difference correction data of the air supply outlet and the data center module machine room, and the raised floor gap and the data center module machine room, wherein the data are specifically expressed as follows:
wherein f (Δp) gap ) Correcting data for pressure difference between air supply port and data center module machine room, a 1 A is the aperture ratio of the air supply outlet 2 Is the aperture ratio of the gap of the raised floor, delta p gap For the test pressure difference between the air supply port and the data center module machine room, ρ is the air density, v gap Is the air blowing speed of the air blowing opening, f (delta p) tile ) Correction data deltap for pressure difference between gap of raised floor and module machine room of data center tile V is the test pressure difference between the gap of the raised floor and the data center module machine room tile The air supply speed is the air supply speed of the gap of the raised floor.
Further, based on the pressure difference data, analyzing the relation between the air output at the air supply port of the area where each row of cabinets are positioned and the air output at the gap of the raised floor, specifically comprising the following steps:
analyzing area data in a data center module machine room, and testing pressure difference and pressure difference correction data of an air supply outlet, the data center module machine room, an overhead floor gap and the data center module machine room;
respectively giving out the air output at the air supply port of the region where each row of cabinets are positioned and the air output at the gap of the raised floor;
and analyzing and obtaining the ratio of the air output at the air supply port of the area where each row of cabinets are positioned to the air output at the gap of the raised floor.
Further, the air outlet volume of the air outlet of the area where each row of cabinets are located is provided, and the method specifically comprises the following steps:
correcting data and the aperture ratio of the air supply port according to the pressure difference between the air supply port and the data center module machine room, and giving out the pressure loss coefficient of the air supply port;
based on the pressure loss coefficient of the air supply port, the area of the air supply port and the test pressure difference between the air supply port and the data center module machine room, giving the air output at the air supply port of the area where each row of cabinet is located;
the pressure loss coefficient of the air supply port is specifically expressed as:
wherein k is gap Is the pressure loss coefficient of the air supply port, f (Δp gap ) For the differential pressure correction data of the air supply outlet and the data center module machine room, delta p gap A is the test pressure difference between the air supply outlet and the data center module machine room 1 Is the aperture ratio of the air supply outlet.
Further, the air output of the gap of the raised floor in the area where each row of cabinets are located is given, and the method specifically comprises the following steps:
correcting data and the aperture ratio of the raised floor gap according to the pressure difference between the raised floor gap and the data center module machine room, and giving out the pressure loss coefficient of the raised floor gap;
based on the pressure loss coefficient of the raised floor gap, the gap area and the test pressure difference of the raised floor gap and the data center module machine room, giving out the air output of the raised floor gap in the area where each row of cabinet is located;
the pressure loss coefficient of the raised floor gap is specifically expressed as:
wherein k is tile Is the pressure loss coefficient of the raised floor gap, f (deltap tile ) Correction data deltap for pressure difference between gap of raised floor and module machine room of data center tile A is the test pressure difference between the gap of the raised floor and the data center module machine room 2 Is the aperture ratio of the gap of the raised floor.
Further, the ratio of the air output at the air supply port of the area where each row of cabinets are positioned to the air output at the gap of the raised floor is analyzed and obtained, and the specific expression is as follows:
wherein eta is the ratio of the air output at the air supply opening of the area where the cabinet is positioned to the air output at the gap of the raised floor, A floor Is the area of the air supply outlet, A tile Is the gap area of the raised floor, deltap gap For testing pressure difference delta p between air supply outlet and data center module machine room tile K is the test pressure difference between the gap of the raised floor and the data center module machine room gap Is the pressure loss coefficient, k of the air supply port tile Is the pressure loss coefficient of the gap of the raised floor.
Further, an air conditioner air supply leakage monitoring result for the area where each row of cabinets is located is provided, which specifically includes:
comparing the air conditioner air supply leakage monitoring results of the areas where the racks are located with a preset threshold value, obtaining the areas where the racks are located below the preset threshold value, and determining the areas as severe areas of air conditioner air supply leakage;
or sequencing the air-conditioning air supply leakage monitoring results of the areas where the racks are located, and determining the areas where the racks with preset ranks are located as the areas where the air-conditioning air supply leakage is serious.
In a second aspect, the present invention further provides a leakage monitoring device for an air conditioning and air supply system of a data center module machine room, where the leakage monitoring method for the air conditioning and air supply system of the data center module machine room includes:
the acquisition unit is used for acquiring area data in the data center module machine room;
the data analysis unit is used for acquiring and analyzing the pressure difference data of the air supply port and the data center module machine room, the raised floor gap and the data center module machine room, and analyzing the relation between the air output at the air supply port and the air output at the raised floor gap in the area where each row of cabinets are positioned based on the pressure difference data;
and the result output unit is used for giving the air conditioner air supply leakage monitoring result aiming at the area where each row of cabinets are located.
The invention provides a leakage monitoring method and device for an air conditioner air supply system of a data center module machine room, which at least comprise the following beneficial effects:
according to the invention, by acquiring and analyzing the differential pressure data of different parts of the raised floor and the environment of the data center module machine room, the rapid and accurate evaluation of the air supply leakage condition of the air conditioner of the data center module machine room can be realized, the support is provided for the diagnosis and optimization of the environment of the data center module machine room, the running risk of the data center module machine room is reduced, the waste of air conditioner refrigeration is reduced, and the cooling efficiency of the air conditioner is improved.
Drawings
FIG. 1 is a schematic diagram of an air conditioning and air supply system of a data center module machine room provided by the invention;
FIG. 2 is a schematic flow chart of a leakage monitoring method for an air conditioning and air supply system of a data center module machine room;
FIG. 3 is a schematic flow chart for analyzing the relation between the air output at the air supply port and the air output at the gap of the raised floor according to one embodiment of the present invention;
fig. 4 is a schematic diagram of arrangement of measuring points in an air conditioning and supplying system of a data center module machine room according to an embodiment of the present invention;
fig. 5 is a schematic diagram of a leakage monitoring device of an air conditioning and air supply system of a data center module machine room provided by the invention.
Reference numerals illustrate: 1-equipment cabinet, 2-air supply port, 3-raised floor gap, 4-air conditioner, 5-raised floor and 6-floor support.
Detailed Description
In order to better understand the above technical solutions, the following detailed description will be given with reference to the accompanying drawings and specific embodiments. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in this application and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise, the "plurality" generally includes at least two.
It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a product or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such product or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a commodity or device comprising such element.
As shown in fig. 1, the data center module machine room comprises a plurality of columns of cabinets 1, raised floors 5 of an air-conditioning air supply system of the data center module machine room are supported and fixed through floor supports 6, a plurality of raised floors 5 are spliced, the cabinets 1 and the air-conditioning 4 are arranged on the raised floors 5, air supply openings 2 are formed in openings of the raised floors 5 at the bottom of the cabinets 1, and a raised floor gap 3 is formed at the splicing position between adjacent raised floors 5.
Wherein, the air conditioner 4 carries cold air through the space of the floor support 6 below the raised floor 5, the cold air enters the cabinet 4 through the air supply opening 2, the channel directly acted by the air supply opening 2 in the cabinet 4 is a cold channel, the hot air formed after the cold air passes through the cabinet returns to the air conditioner 4 for cooling, wherein, a heat channel after heat exchange is formed between adjacent cabinets 4. And because the raised floor gaps 3 exist between the adjacent raised floors 5, when the air conditioner conveys cold air through the space of the floor support 6, the cold air can directly enter the data center module machine room through the raised floor gaps 3 under the action of an airflow pressure field, and finally, the cold air is directly fed back to the air conditioner 4 to finish circulation. For cold air passing through the raised floor gap 3, the cooling efficiency of the air conditioner 4 is eventually lowered since it does not pass through the cabinet 1.
Based on the structure of the data center module machine room and the problems existing during air supply of the air conditioner, the invention provides the leakage monitoring method of the air conditioner air supply system of the data center module machine room, which can rapidly evaluate the leakage condition of the air conditioner air supply of the data center module machine room, provide support for the environment diagnosis and optimization of the data center module machine room, reduce the running risk of the data center module machine room, reduce the waste of air conditioner refrigeration and improve the cooling efficiency of the air conditioner.
Specifically, the data center module computer lab includes multi-column rack 1, and data center module computer lab air conditioner air supply system includes: the raised floor 5 and the raised floor gap 3 at the joint of the plurality of the spliced raised floors, the raised floor 5 is provided with an air supply opening 2 corresponding to the area where the cabinet 1 is positioned, and the air of the air conditioner air supply system is sent to the inlet of the cabinet through the air supply opening 2.
As shown in fig. 2, the leakage monitoring method specifically includes the following steps:
acquiring area data in a data center module machine room;
acquiring and analyzing pressure difference data of the air supply outlet, the data center module machine room, the raised floor gap and the data center module machine room;
based on the pressure difference data, analyzing the relation between the air output at the air supply port of the area where each row of cabinets are positioned and the air output at the gap of the raised floor;
and (5) giving an air conditioner air supply leakage monitoring result aiming at the area where each row of cabinets are located.
The area data in the data center module machine room comprises the area of the data center module machine room and the area of the air supply outlet corresponding to the area where each row of cabinets are located.
The method comprises the following steps of obtaining and analyzing differential pressure data of an air supply outlet, a data center module machine room, an overhead floor gap and the data center module machine room, and specifically comprises the following steps:
arranging a plurality of first pressure difference measuring points and second pressure difference measuring points in the area where each row of cabinet is located, and acquiring test data of each pressure difference measuring point, wherein the first pressure difference measuring points are used for testing the air supply speed of an air supply port and the test pressure difference between the air supply port and a data center module machine room, and the second pressure difference measuring points are used for testing the air supply speed of an overhead floor gap and the test pressure difference between the overhead floor gap and the data center module machine room;
and acquiring and combining the aperture ratio of the air supply opening, the aperture ratio of the raised floor gap and the air density, and correcting each test pressure difference to respectively obtain pressure difference correction data of the air supply opening and the data center module machine room and pressure difference correction data of the raised floor gap and the data center module machine room.
The first differential pressure measuring point is arranged at the air supply port, the second differential pressure measuring point is arranged in the floor support around the cabinet, meanwhile, a third differential pressure measuring point which is in the same environment with the cabinet is also arranged in the data center module machine room, the pressure of the data center module machine room is tested, and the first differential pressure measuring point and the second differential pressure measuring point are matched to obtain the test differential pressure of the air supply port, the data center module machine room, the overhead floor gap and the data center module machine room.
In an actual application scene, the test pressure differences of the air supply opening, the data center module machine room and the raised floor gap and the data center module machine room are corrected in a field actual measurement mode, so that the pressure loss coefficient correction value calculation of different test pressure differences is realized.
Specifically, the opening ratio of the air supply outlet, the opening ratio of the raised floor gap and the air density are obtained and combined to correct each test pressure difference, so as to respectively obtain pressure difference correction data of the air supply outlet and the data center module machine room, and the raised floor gap and the data center module machine room, wherein the pressure difference correction data are specifically expressed as follows:
wherein f (Δp) gap ) Correcting data for pressure difference between air supply port and data center module machine room, a 1 A is the aperture ratio of the air supply outlet 2 Is the aperture ratio of the gap of the raised floor, delta p gap For the test pressure difference between the air supply port and the data center module machine room, ρ is the air density, v gap Is the air blowing speed of the air blowing opening, f (delta p) tile ) Correction data deltap for pressure difference between gap of raised floor and module machine room of data center tile V is the test pressure difference between the gap of the raised floor and the data center module machine room tile The air supply speed is the air supply speed of the gap of the raised floor.
After the pressure difference data is given, as shown in fig. 3, based on the pressure difference data, the relationship between the air output at the air supply port of the area where each row of cabinets are located and the air output at the gap of the raised floor is analyzed, which specifically includes the following steps:
analyzing area data in a data center module machine room, and testing pressure difference and pressure difference correction data of an air supply outlet, the data center module machine room, an overhead floor gap and the data center module machine room;
respectively giving out the air output at the air supply port of the region where each row of cabinets are positioned and the air output at the gap of the raised floor;
and analyzing and obtaining the ratio of the air output at the air supply port of the area where each row of cabinets are positioned to the air output at the gap of the raised floor.
The method specifically comprises the following steps of:
correcting data and the aperture ratio of the air supply port according to the pressure difference between the air supply port and the data center module machine room, and giving out the pressure loss coefficient of the air supply port;
the air supply speed of the air supply port is v gap Air supplyThe test pressure difference between the port and the data center module machine room is delta p gap The air density is ρ, the pressure loss coefficient of the air supply port is k gap Then
Therefore, the pressure loss coefficient of the air supply port is specifically expressed as:
wherein k is gap Is the pressure loss coefficient of the air supply port, f (Δp gap ) For the differential pressure correction data of the air supply outlet and the data center module machine room, delta p gap A is the test pressure difference between the air supply outlet and the data center module machine room 1 Is the aperture ratio of the air supply outlet.
And giving the air output of the air supply port in the area where each row of cabinet is located based on the pressure loss coefficient of the air supply port, the area of the air inlet and the test pressure difference between the air supply port and the data center module machine room.
The area of the air supply opening is A floor Air flow M passing through the air supply opening gap =ρA floor v gap 。
The method specifically comprises the following steps of:
correcting data and the aperture ratio of the raised floor gap according to the pressure difference between the raised floor gap and the data center module machine room, and giving out the pressure loss coefficient of the raised floor gap;
the air supply speed of the gap of the raised floor is v tile The test pressure difference between the gap of the raised floor and the data center module machine room is deltap tile The air density is ρ, and the pressure loss coefficient of the gap of the raised floor is k tile Then
Thus, raised floor gapPressure loss coefficient of (2)The method is specifically expressed as follows:
wherein k is tile Is the pressure loss coefficient of the raised floor gap, f (deltap tile ) Correction data deltap for pressure difference between gap of raised floor and module machine room of data center tile A is the test pressure difference between the gap of the raised floor and the data center module machine room 2 The aperture ratio of the gap of the raised floor;
and giving out air quantity at the raised floor gap of the area where each row of cabinets are positioned based on the pressure loss coefficient and the gap area of the raised floor gap and the test pressure difference of the raised floor gap and the data center module machine room.
The gap area of the raised floor is A tile Air flow M through the gap of the raised floor tile =ρA tile v tile 。
The ratio of the air output at the air supply port of the area where each row of cabinets are positioned to the air output at the gap of the raised floor is analyzed and obtained, and the specific expression is as follows:
wherein eta is the ratio of the air output at the air supply opening of the area where the cabinet is positioned to the air output at the gap of the raised floor, A floor Is the area of the air supply outlet, A tile Is the gap area of the raised floor, deltap gap For testing pressure difference delta p between air supply outlet and data center module machine room tile K is the test pressure difference between the gap of the raised floor and the data center module machine room gap Is the pressure loss coefficient, k of the air supply port tile Is the pressure loss coefficient of the gap of the raised floor.
When Deltap gap Within a certain range, the pressure loss coefficient k of the air supply port gap Mainly with the openings of the air supply outletsRate a 1 Related, k gap Warp Δp gap The modified formula is:
opening ratio a of air supply outlet 1 For the ratio of the opening area of the air supply opening to the corresponding raised floor area, the opening ratio a of the air supply opening of the data center module machine room 1 The number of (2) is generally in the range of 30% -50%.
When Deltap tile Within a certain range, the pressure loss coefficient k of the raised floor gap tile The aperture ratio a of the gap between the main floor and the raised floor 2 In relation to the air supply opening, the aperture ratio a of the raised floor gap 2 The value is very small, the fluctuation is less than 0.5%, and the value is usually in the range of 0.3% -0.5% in actual engineering, so k tile Warp Δp tile The modified formula is:
aperture ratio a of raised floor gap 2 Taking a certain value between 0.3% and 0.5%, the method can be simplified as follows:
in addition, A floor Can be obtained by on-site measurement, A tile The area is about 0.1% -0.5% of the area A of the module machine room, and can be estimated according to 0.3% of the area A. Then, the ratio η of the air output through the air outlet to the air output through the gap of the raised floor can be expressed as follows:
according to the above, for a data center module machine room in a certain practical application scene, after the area of the data center module machine room, the floor area of an air outlet of the data center module machine room, the aperture ratio of an air supply port and the aperture ratio of an overhead floor gap are obtained, the ratio eta of the air output through the air supply port to the air output through the overhead floor gap can be estimated by monitoring the pressure difference between the position and the non-aperture position of the data center module machine room and the data center module machine room.
According to the relation between the air output of the air supply port of each row of cabinet areas and the air output of the raised floor gaps, the invention can give the air conditioner air supply leakage monitoring result aiming at the area where each row of cabinets is located, and specifically comprises the following steps:
comparing the air conditioner air supply leakage monitoring results of the areas where the racks are located with a preset threshold value, obtaining the areas where the racks are located below the preset threshold value, and determining the areas as severe areas of air conditioner air supply leakage;
or sequencing the air-conditioning air supply leakage monitoring results of the areas where the racks are located, and determining the areas where the racks with preset ranks are located as the areas where the air-conditioning air supply leakage is serious.
According to the invention, the pressure difference correction data of different parts of the data center module machine room can be obtained by calling the calculation formula in a short-term actual measurement mode, and on the premise of obtaining the area of the data center module machine room, the area of the air supply opening, the aperture ratio of the air supply opening and the aperture ratio of the raised floor gap, namely, the ratio of the air output at the air supply opening of the area where each row of cabinets are positioned to the air output at the raised floor gap is calculated according to the corresponding formula, so that the air supply leakage condition of the air conditioner of the data center module machine room is evaluated.
As shown in fig. 4, in the practical application scenario, the module room area is a, and the air supply opening area is a floor L1, L2 and L3 rows of cabinets are shared in the data center module machine room, and the opening ratios of the air supply outlets corresponding to the areas where the cabinets are located are respectively a L1 、a L2 、a L3 The area of the air supply opening of each row of cabinets is A floo-Li The corresponding module machine room area is A Li By the number N of the cabinets i Total number of cabinets N to data center module roomRatio ofThe module machine room area corresponding to the L1-row cabinet can be obtained。
Arranging pressure difference measuring points (namely first pressure difference measuring points) at the air supply opening of each row of cabinet cold channels, and acquiring and monitoring the pressure difference deltap between the air supply opening and the data center module machine room gap Each cold channel is provided with 3 measuring points which are respectively positioned at two ends and the middle position of each row of cabinets, and the first pressure difference measuring point is arranged as indicated by "+.. At the same time, at 3 measuring points, the air supply speed v of the air supply port is tested gap From this, the differential pressure correction data f (Δp) of the air outlet and the data center module room can be calculated gap ). L1 row obtains the test differential pressure monitoring results of the air supply outlet and the machine room as delta p respectively gap-L1-1 、Δp gap-L1-2 、Δp gap-L1-3 Average value isCan be obtained in the same way、。
Arranging second differential pressure measuring points in each row of cabinet thermal channels (namely in the floor brackets around the cabinet), and acquiring and monitoring the test differential pressure deltap between the gap of the raised floor and the data center module machine room tile 4 measuring points are arranged around each row of cabinets and are respectively positioned at the center of the periphery of each row of cabinets, and the positions of the second pressure difference measuring points are marked as' in figure 4. At the same time, around 4 second differential pressure measuring points, the air supply speed V of the gap of the raised floor is tested tile From this, the differential pressure correction data f (Δp) of the raised floor gap and the data center module room can be calculated tile ). The test differential pressure monitoring results of the L1 column for obtaining the gap of the raised floor and the data center module machine room are delta p respectively tile-L1-1 Δp tile-L1-2 、Δp tile-L1-3 、Δp tile-L1-4 Average value isCan be obtained in the same way、。
The ratio eta of the air output at the air outlet of the cabinet area of the L1, L2 and L3 columns and the air output at the gap of the raised floor can be calculated by calculating the ratio of the air output at the air outlet to the air output at the gap of the raised floor 1 、η 2 、η 3 . Ith row of cabinet eta i The calculated results of (2) are:
by comparing eta i The air supply leakage condition of the air conditioner in different areas can be confirmed. If eta is lower, the air supply leakage of the air conditioner is obvious, and the situation that whether the raised floor is not tightly sealed, the bottom pipeline is jammed and the air supply amount of the air conditioner is far more than the cabinet requirement exists in the area is mainly checked.
As shown in fig. 5, the present invention further provides a leakage monitoring device for an air conditioning and air supply system of a data center module machine room, and the leakage monitoring method for the air conditioning and air supply system of the data center module machine room includes:
the acquisition unit is used for acquiring area data in the data center module machine room;
the data analysis unit is used for acquiring and analyzing the pressure difference data of the air supply port and the data center module machine room, the raised floor gap and the data center module machine room, and analyzing the relation between the air output at the air supply port and the air output at the raised floor gap in the area where each row of cabinets are positioned based on the pressure difference data;
and the result output unit is used for giving the air conditioner air supply leakage monitoring result aiming at the area where each row of cabinets are located.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiments and all such alterations and modifications as fall within the scope of the invention. It will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the spirit or scope of the invention. Thus, it is intended that the present invention also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.

Claims (7)

1. The utility model provides a data center module computer lab air conditioner air supply system leakage monitoring method which characterized in that, data center module computer lab includes many rows of racks, and data center module computer lab air conditioner air supply system includes: a plurality of spliced raised floors and raised floor gaps at the spliced positions, wherein the raised floors are provided with air supply openings corresponding to the areas where the cabinets are positioned, and air of an air conditioner air supply system is supplied to the inlets of the cabinets through the air supply openings;
the leakage monitoring method specifically comprises the following steps:
acquiring area data in a data center module machine room, wherein the area data in the data center module machine room comprises the area of the data center module machine room and the area of an air supply outlet corresponding to the area where each row of cabinets are positioned;
acquiring and analyzing pressure difference data of the air supply outlet, the data center module machine room, the raised floor gap and the data center module machine room;
based on the pressure difference data, analyzing the relation between the air output at the air supply port of the area where each row of cabinets are positioned and the air output at the gap of the raised floor, specifically comprising the following steps: analyzing area data in a data center module machine room, and testing pressure difference and pressure difference correction data of an air supply outlet, the data center module machine room, an overhead floor gap and the data center module machine room; respectively giving out the air output at the air supply port of the region where each row of cabinets are positioned and the air output at the gap of the raised floor; analyzing and obtaining the ratio of the air output at the air supply port of the area where each row of cabinets are positioned to the air output at the gap of the raised floor, and evaluating the air-conditioning air supply leakage condition of the data center module machine room;
giving an air conditioner air supply leakage monitoring result aiming at an area where each row of cabinets is located, and specifically comprising the following steps: comparing the air conditioner air supply leakage monitoring results of the areas where the racks are located with a preset threshold value, obtaining the areas where the racks are located below the preset threshold value, and determining the areas as severe areas of air conditioner air supply leakage;
or sequencing the air-conditioning air supply leakage monitoring results of the areas where the racks are located, and determining the areas where the racks with preset ranks are located as the areas where the air-conditioning air supply leakage is serious.
2. The method for monitoring leakage of air conditioning and air supply system of data center module machine room according to claim 1, wherein the method for acquiring and analyzing differential pressure data between an air supply port and the data center module machine room, between an overhead floor gap and the data center module machine room specifically comprises the following steps:
arranging a plurality of first pressure difference measuring points and second pressure difference measuring points in the area where each row of cabinet is located, and acquiring test data of each pressure difference measuring point, wherein the first pressure difference measuring points are used for testing the air supply speed of an air supply port and the test pressure difference between the air supply port and a data center module machine room, and the second pressure difference measuring points are used for testing the air supply speed of an overhead floor gap and the test pressure difference between the overhead floor gap and the data center module machine room;
and acquiring and combining the aperture ratio of the air supply opening, the aperture ratio of the raised floor gap and the air density, and correcting each test pressure difference to respectively obtain pressure difference correction data of the air supply opening and the data center module machine room and pressure difference correction data of the raised floor gap and the data center module machine room.
3. The method for monitoring leakage of an air conditioning and air supply system of a data center module machine room according to claim 2, wherein the method is characterized in that the method comprises the steps of obtaining and combining the opening ratio of an air supply port, the opening ratio of an overhead floor gap and the air density, correcting each test pressure difference to obtain pressure difference correction data of the air supply port and the data center module machine room, and the overhead floor gap and the data center module machine room respectively, wherein the data are specifically expressed as:
；
wherein f (Δp) gap ) Correcting data for pressure difference between air supply port and data center module machine room, a 1 A is the aperture ratio of the air supply outlet 2 Is the aperture ratio of the gap of the raised floor, delta p gap For the test pressure difference between the air supply port and the data center module machine room, ρ is the air density, v gap Is the air blowing speed of the air blowing opening, f (delta p) tile ) Correction data deltap for pressure difference between gap of raised floor and module machine room of data center tile V is the test pressure difference between the gap of the raised floor and the data center module machine room tile The air supply speed is the air supply speed of the gap of the raised floor.
4. The method for monitoring leakage of air conditioning and air supply system of data center module machine room according to claim 1, wherein the method for monitoring leakage of air supply system of air conditioner in data center module machine room is characterized by giving air output at air supply port of area where each row of cabinets is located, and comprises the following steps:
correcting data and the aperture ratio of the air supply port according to the pressure difference between the air supply port and the data center module machine room, and giving out the pressure loss coefficient of the air supply port;
based on the pressure loss coefficient of the air supply port, the area of the air supply port and the test pressure difference between the air supply port and the data center module machine room, giving the air output at the air supply port of the area where each row of cabinet is located;
the pressure loss coefficient of the air supply port is specifically expressed as:
；
wherein k is gap Is the pressure loss coefficient of the air supply port, f (Δp gap ) For the differential pressure correction data of the air supply outlet and the data center module machine room, delta p gap Is an air supply outlet and a data centerTest differential pressure of module machine room, a 1 Is the aperture ratio of the air supply outlet.
5. The method for monitoring leakage of an air conditioning and air supplying system of a data center module machine room according to claim 1, wherein the method for monitoring the leakage of the air conditioning and air supplying system of the data center module machine room is characterized by giving out the air quantity of the gap of the raised floor in the area where each row of cabinets are located, and specifically comprising the following steps:
correcting data and the aperture ratio of the raised floor gap according to the pressure difference between the raised floor gap and the data center module machine room, and giving out the pressure loss coefficient of the raised floor gap;
based on the pressure loss coefficient of the raised floor gap, the gap area and the test pressure difference of the raised floor gap and the data center module machine room, giving out the air output of the raised floor gap in the area where each row of cabinet is located;
the pressure loss coefficient of the raised floor gap is specifically expressed as:
；
wherein k is tile Is the pressure loss coefficient of the gap of the raised floor,f（Δp tile ) Correction data deltap for pressure difference between gap of raised floor and module machine room of data center tile A is the test pressure difference between the gap of the raised floor and the data center module machine room 2 Is the aperture ratio of the gap of the raised floor.
6. The method for monitoring leakage of an air conditioning and air supplying system of a data center module machine room according to claim 1, wherein the ratio of the air outlet volume at the air supplying port of the area where each row of cabinets are located to the air outlet volume at the gap of the raised floor is obtained by analysis and is specifically expressed as follows:
；
wherein eta is the ratio of the air output at the air supply opening of the area where the cabinet is positioned to the air output at the gap of the raised floor, A floor The air supply opening area is the air supply opening area,A tile is the gap area of the raised floor, deltap gap For testing pressure difference delta p between air supply outlet and data center module machine room tile K is the test pressure difference between the gap of the raised floor and the data center module machine room gap Is the pressure loss coefficient, k of the air supply port tile Is the pressure loss coefficient of the gap of the raised floor.
7. A leakage monitoring device for an air conditioning and air supply system of a data center module machine room, which is characterized in that the leakage monitoring method for the air conditioning and air supply system of the data center module machine room according to any one of claims 1 to 6 is adopted, and comprises the following steps:
the acquisition unit is used for acquiring area data in the data center module machine room;
the data analysis unit is used for acquiring and analyzing the pressure difference data of the air supply port and the data center module machine room, the raised floor gap and the data center module machine room, and analyzing the relation between the air output at the air supply port and the air output at the raised floor gap in the area where each row of cabinets are positioned based on the pressure difference data;
and the result output unit is used for giving the air conditioner air supply leakage monitoring result aiming at the area where each row of cabinets are located.
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