CN212081582U - Lower air supply cabinet air supply device - Google Patents
Lower air supply cabinet air supply device Download PDFInfo
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- CN212081582U CN212081582U CN202020874370.9U CN202020874370U CN212081582U CN 212081582 U CN212081582 U CN 212081582U CN 202020874370 U CN202020874370 U CN 202020874370U CN 212081582 U CN212081582 U CN 212081582U
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- air
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- air supply
- static pressure
- blower
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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
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Abstract
The utility model discloses a lower rack air supply arrangement that supplies air, include: the air inlet of the static pressure box is connected with an air-conditioning air supply pipeline, and an air feeder is arranged at the air outlet of the static pressure box; the air inlet of the cold channel is communicated with the air outlet of the static pressure box, and the periphery of the cold channel is provided with an air supply channel communicated with the air inlet of the cabinet; an air supply temperature sensor; the air quantity sensor is arranged at an air inlet of the cabinet; a return air temperature sensor; the air inlet of the hot channel is communicated with the air outlet of the cabinet, and the air outlet of the hot channel is connected with an air conditioner return air pipeline; the power collector is used for obtaining the equipment running power of the cabinet; and a controller. The embodiment of the utility model provides a lower air supply rack air supply arrangement utilizes the output amount of wind of the poor control forced draught blower of amount of wind, has improved amount of wind control precision, can solve because the static pressure of static pressure case changes the poor problem of amount of wind control precision that leads to.
Description
Technical Field
The utility model belongs to the technical field of air conditioner fan control, especially, relate to a lower air supply rack air supply arrangement.
Background
With the continuous growth of high-density equipment, virtualization and cloud computing, the thermal environment of a data center computer room becomes more and more complex. Inside the machine room, the heat generation amount of each cabinet is greatly different due to different functions and configurations. Even the same cabinet can operate in different time periods, so that the energy consumption difference is obvious. In the face of diversified load environments and diversified load states, the conventional scheme is to lay an intelligent air supply floor in a machine room so as to solve the problem that the air volume cannot be adjusted in the traditional air supply mode.
However, in the lower air supply cabinet air supply device provided by the prior art, due to the design problem of the air duct, the air volume sent into the cabinet is influenced by the static pressure box under the floor, and when the static pressure in the static pressure box changes, the air volume also changes correspondingly, so that the actual air volume is not adapted to the required air volume.
Therefore, how to solve the problem that the actual air volume does not match the required air volume is a subject to be studied by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a lower air supply rack air supply arrangement, through the installation air sensor of air intake department at the rack, utilize the air volume difference to control in order to improve amount of wind control accuracy to solve above-mentioned technical problem.
To achieve the purpose, the utility model adopts the following technical proposal:
a lower air supply cabinet air supply device comprises:
the static pressure box is arranged below the floor, an air inlet of the static pressure box is connected with an air supply pipeline of an air conditioner, and an air supply blower is arranged at an air outlet of the static pressure box;
the cold channel is arranged on the floor, an air inlet of the cold channel is communicated with an air outlet of the static pressure box, and an air supply channel communicated with the air inlet of the cabinet is arranged on the periphery of the cold channel;
the air supply temperature sensor is arranged at an air inlet of the cabinet;
the air quantity sensor is arranged at an air inlet of the cabinet;
the return air temperature sensor is arranged at an air outlet of the cabinet;
the air inlet of the hot channel is communicated with the air outlet of the cabinet, and the air outlet of the hot channel is connected with an air conditioner return air pipeline;
the power collector is used for obtaining the equipment running power of the cabinet;
and the controller is electrically connected with the air feeder, the air supply temperature sensor, the air quantity sensor, the return air temperature sensor and the power collector respectively.
Optionally, the lower blower cabinet blower device further includes:
the air supply valve is arranged at an air outlet of the static pressure box;
the air valve actuator is electrically connected with the air supply valve;
the frequency converter is electrically connected with the air blower;
the air valve actuator and the frequency converter are respectively and electrically connected with the controller.
Optionally, the cabinet is provided with a front door and a rear door, the air inlet of the cabinet is arranged on the front door, and the air outlet of the cabinet is arranged on the rear door;
the air quantity sensor is arranged on the front door 1 meter away from the floor, the air supply temperature sensor is arranged on the front door 1.5 meter away from the floor, and the return air temperature sensor is arranged on the top of the rear door.
Optionally, the cabinet is a 42U cabinet.
Optionally, at least two said blowers are included.
Optionally, a precision air conditioner for cooling return air is arranged between the air conditioner air supply pipeline and the air conditioner return air pipeline.
Optionally, the controller is a programmable logic controller.
Optionally, the power harvester comprises:
the voltage transformer is used for collecting the equipment operating voltage of the cabinet;
and the current transformer is used for collecting the equipment running current of the cabinet.
Compared with the prior art, the embodiment of the utility model provides a following beneficial effect has:
during the use, acquire air supply temperature, return air temperature and equipment operating power respectively through air supply temperature sensor, return air temperature sensor and power collector, the controller obtains the demand amount of wind of rack with this three data calculation, then utilizes the difference of the actual amount of wind that air sensor measured and demand amount of wind to control the output amount of wind of forced draught blower, makes actual amount of wind and demand amount of wind suit finally, has improved amount of wind control accuracy. The embodiment of the utility model provides a lower air supply rack air supply arrangement utilizes the output amount of wind of the poor control forced draught blower of amount of wind, has improved amount of wind control precision, can solve because the static pressure of static pressure case changes the poor problem of amount of wind control precision that leads to.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
The structure, ratio, size and the like shown in the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention has no technical essential significance, and any structure modification, ratio relationship change or size adjustment should still fall within the range which can be covered by the technical content disclosed by the present invention without affecting the efficacy and the achievable purpose of the present invention.
Fig. 1 is a structural diagram of an air supply device of a lower air supply cabinet provided by the embodiment of the utility model;
fig. 2 is a diagram of a blower of an air supply device of a lower air supply cabinet according to an embodiment of the present invention;
fig. 3 is a schematic block diagram of an air supply device of a lower air supply cabinet provided in an embodiment of the present invention.
Illustration of the drawings:
the device comprises a controller 10, a static pressure box 11, a blower 12, a cold channel 13, a hot channel 14, a blowing air temperature sensor 15, a return air temperature sensor 16, an air volume sensor 17, a blowing valve 18, a power collector 19, a precision air conditioner 20, an air conditioning blowing pipeline 21, an air conditioning return air pipeline 22, a cabinet 30, equipment 31, a frequency converter 41, an air valve actuator 42 and a floor 50.
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the embodiments of the present invention are clearly and completely described with reference to the drawings in the embodiments of the present invention, and obviously, the embodiments described below are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1 to 3, the present embodiment provides a lower blowing cabinet blowing device for cooling equipment 31 (including servers) in a cabinet 30 to prevent the temperature of the equipment 31 from being too high. The lower air supply cabinet air supply device is particularly suitable for a data center machine room.
Specifically, this air supply cabinet air supply arrangement includes down:
the static pressure box 11, the static pressure box 11 is installed under the floor 50, the air inlet of the static pressure box 11 is connected with the air-conditioning air supply pipeline 21, and the air outlet of the static pressure box 11 is provided with the blower 12;
the cold channel 13 is arranged on the floor 50, an air inlet of the cold channel 13 is communicated with an air outlet of the static pressure box 11, an air supply channel communicated with the air inlet of the cabinet 30 is arranged on the peripheral side of the cold channel 13, and the cold channel 13 can be a closed channel and is used for improving the utilization efficiency of cold air;
the air supply temperature sensor 15, the air supply temperature sensor 15 is installed at the air inlet of the cabinet 30;
the air quantity sensor 17, the air quantity sensor 17 is installed at the air inlet of the cabinet 30;
the return air temperature sensor 16, the return air temperature sensor 16 is installed at the air outlet of the cabinet 30;
an air inlet of the hot channel 14 is communicated with an air outlet of the cabinet 30, and an air outlet of the hot channel 14 is connected with an air conditioner return air pipeline 22;
the power collector 19 is used for obtaining the equipment operation power of the cabinet 30;
the controller 10, the controller 10 is electrically connected with the blower 12, the blowing air temperature sensor 15, the air quantity sensor 17, the return air temperature sensor 16 and the power collector 19 respectively.
Specifically, in the present embodiment, a precision air conditioner 20 for cooling return air is provided between the air-conditioning supply duct 21 and the air-conditioning return duct 22. The precision air conditioner 20 feeds the cooled cold air to the plenum box 11 through the air conditioner blowing duct 21, and then to the cabinet 30 through the cold aisle 13 to cool the equipment 31 inside the cabinet 30. The cold air passes through the cabinet 30 to become hot air, and then returns to the precision air conditioner 20 through the hot channel 14 and the air conditioner return duct 22, and the precision air conditioner 20 cools the hot air again to become cold air, so that circulation is formed. It should be noted that the cold air and the hot air are relative terms, and in the heating and ventilation technology field, the temperature of the cold air is lower than that of the hot air, that is, the supply temperature of the precision air conditioner 20 is lower than the return temperature of the precision air conditioner 20.
Further, as an optional manner of this embodiment, the power harvester 19 includes:
the voltage transformer is used for collecting the equipment operating voltage of the cabinet 30;
and the current transformer is used for collecting the equipment operation current of the cabinet 30.
And then calculating the running power of the equipment according to the mathematical relationship among the running voltage of the equipment, the running current of the equipment and the running power of the equipment.
In summary, the controller 10 can obtain the supply air temperature, the return air temperature, the actual air volume (i.e. the real-time air volume) measured by the air volume sensor 17, and the device operation power respectively.
Further, the controller 10 can calculate the required air volume of the cabinet 30 according to the device operation power, the supply air temperature and the return air temperature. As an optional manner of this embodiment, the calculation formula of the required air volume is as follows:
g is the required air volume, alpha is the thermal disturbance coefficient, the value range is 1.1-1.3, the specific numerical value can be selected and determined according to the type of equipment 31 in the cabinet 30, Q is the equipment running power, rho is the air density, and the value can be 1.2kg/m3、G0The specific heat capacity of air can be 1.01kj (kg.k), and T can be obtained2-T1For difference between return and return temperatures, alpha, rho and G0Are all pre-calibrated values.
Finally, the controller 10 controls the output air volume of the blower 12 according to the difference between the actual air volume and the required air volume, so that the actual air volume is adapted to the required air volume, and the problem of poor air volume control accuracy caused by the static pressure change of the static pressure box 11 can be solved.
The present embodiment discloses controlling the output air volume of the blower 12 using an air volume difference (difference between the actual air volume and the required air volume) to solve the problem of poor air volume control accuracy due to the static pressure change of the static pressure tank 11.
There are various ways of changing the output air volume of the blower 12, including: adjusting the opening of the blower valve 18, adjusting the rotation speed of the blower 12, and adjusting the number of operations of the blower 12. On the basis of obtaining the air volume difference, how to adjust the opening degree of the air supply valve 18, or adjust the rotation speed of the air supply device 12, or adjust the operation number of the air supply device 12 by using the air volume difference can be realized by adopting an automatic control technology. As an alternative to this embodiment, the controller 10 is a programmable logic controller, and the programmable logic controller may adopt a PID (proportional Integral Differential) control technique to adjust the opening of the air supply valve 18, or adjust the rotation speed of the air supply blower 12, or adjust the number of the air supply blower 12, so that the air volume difference tends to zero, that is, the actual air volume is adapted to the required air volume, so as to improve the air volume control accuracy.
Specifically, lower air supply cabinet air supply arrangement still includes:
the blast valve 18, the blast valve 18 is set up in the air outlet of the static pressure box 11;
the air valve actuator 42 is electrically connected with the air supply valve 18, and is used for adjusting the opening of the air supply valve 18;
the frequency converter 41 is electrically connected with the air blower 12 and is used for controlling the starting, the stopping and the rotating speed of the air blower 12, and when a plurality of air blowers 12 are arranged, each frequency converter 41 controls the starting, the stopping and the rotating speed of one air blower 12;
the air valve actuator 42 and the frequency converter 41 are respectively electrically connected with the controller 10.
The controller 10 can output a numerical value in a range of 0-10V to the air valve actuator 42 according to the air volume difference so as to adjust the opening of the air supply valve 18 and further change the actual air volume;
the controller 10 can also output a numerical value in a range of 0-10V to the frequency converter 41 according to the air volume difference so as to adjust the rotating speed of the blower 12 and further change the actual air volume;
the controller 10 can also control the number of the operation of the blowers 12 according to the magnitude of the air volume difference, thereby changing the actual air volume.
Therefore, in this embodiment, any one of the above manners or a combination of two or more manners may be adopted, and the air valve actuator and the frequency converter are controlled according to the magnitude of the air volume difference, so as to finally make the air volume difference approach to zero.
It should be noted that the cabinet 30 provided in the present embodiment is a 42U cabinet, and the 42U cabinet is one of standard cabinets. U is a unit representing the external size of the server, and is an abbreviation of unit, and the detailed size is determined by EIA (Electronic Industry Association, american Electronic industries Association) which is a group of the Industry.
The 42U cabinet is provided with a front door and a rear door, an air inlet of the cabinet 30 is arranged at the front door, and an air outlet of the cabinet 30 is arranged at the rear door;
the air quantity sensor 17 is arranged on the front door and is 1 m away from the floor 50, the air supply temperature sensor 15 is arranged on the front door and is 1.5 m away from the floor 50, and the return air temperature sensor 16 is arranged on the top of the rear door.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (8)
1. The utility model provides a lower air supply cabinet air supply arrangement which characterized in that includes:
the static pressure box is arranged below the floor, an air inlet of the static pressure box is connected with an air supply pipeline of an air conditioner, and an air supply blower is arranged at an air outlet of the static pressure box;
the cold channel is arranged on the floor, an air inlet of the cold channel is communicated with an air outlet of the static pressure box, and an air supply channel communicated with the air inlet of the cabinet is arranged on the periphery of the cold channel;
the air supply temperature sensor is arranged at an air inlet of the cabinet;
the air quantity sensor is arranged at an air inlet of the cabinet;
the return air temperature sensor is arranged at an air outlet of the cabinet;
the air inlet of the hot channel is communicated with the air outlet of the cabinet, and the air outlet of the hot channel is connected with an air conditioner return air pipeline;
the power collector is used for obtaining the equipment running power of the cabinet;
and the controller is electrically connected with the air feeder, the air supply temperature sensor, the air quantity sensor, the return air temperature sensor and the power collector respectively.
2. The lower plenum cabinet plenum apparatus of claim 1, further comprising:
the air supply valve is arranged at an air outlet of the static pressure box;
the air valve actuator is electrically connected with the air supply valve;
the frequency converter is electrically connected with the air blower;
the air valve actuator and the frequency converter are respectively and electrically connected with the controller.
3. The lower blower cabinet blower arrangement of claim 1 further comprising:
the cabinet is provided with a front door and a rear door, an air inlet of the cabinet is arranged on the front door, and an air outlet of the cabinet is arranged on the rear door;
the air quantity sensor is arranged on the front door 1 meter away from the floor, the air supply temperature sensor is arranged on the front door 1.5 meter away from the floor, and the return air temperature sensor is arranged on the top of the rear door.
4. The lower blower cabinet blower arrangement of claim 3 wherein:
the cabinet is a 42U cabinet.
5. The lower blower cabinet blower arrangement of claim 1 further comprising:
comprises at least two air blowers.
6. The lower blower cabinet blower arrangement of claim 1 further comprising:
and a precise air conditioner for cooling return air is arranged between the air conditioner air supply pipeline and the air conditioner return air pipeline.
7. The lower blower cabinet blower arrangement of claim 1 further comprising:
the controller is a programmable logic controller.
8. The lower plenum cabinet plenum apparatus of claim 1, wherein the power harvester comprises:
the voltage transformer is used for collecting the equipment operating voltage of the cabinet;
and the current transformer is used for collecting the equipment running current of the cabinet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020874370.9U CN212081582U (en) | 2020-05-22 | 2020-05-22 | Lower air supply cabinet air supply device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020874370.9U CN212081582U (en) | 2020-05-22 | 2020-05-22 | Lower air supply cabinet air supply device |
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| Publication Number | Publication Date |
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| CN212081582U true CN212081582U (en) | 2020-12-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020874370.9U Active CN212081582U (en) | 2020-05-22 | 2020-05-22 | Lower air supply cabinet air supply device |
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| CN (1) | CN212081582U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111457566A (en) * | 2020-05-22 | 2020-07-28 | 东莞深证通信息技术有限公司 | Lower air supply cabinet air supply device and control method thereof |
| CN113873834A (en) * | 2021-09-23 | 2021-12-31 | 浪潮通信信息系统有限公司 | Down-blowing precise air conditioner airflow control system and data center machine room |
| CN115413178A (en) * | 2021-05-26 | 2022-11-29 | 中国移动通信集团浙江有限公司 | Ventilation floor of data center and temperature adjusting method |
| CN118102685A (en) * | 2024-04-29 | 2024-05-28 | 深圳前海中碳综合能源科技有限公司 | Heat dissipation system, air quantity adjusting method, device and equipment of server cabinet group |
-
2020
- 2020-05-22 CN CN202020874370.9U patent/CN212081582U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111457566A (en) * | 2020-05-22 | 2020-07-28 | 东莞深证通信息技术有限公司 | Lower air supply cabinet air supply device and control method thereof |
| CN111457566B (en) * | 2020-05-22 | 2024-09-24 | 东莞深证通信息技术有限公司 | Air supply device of lower air supply cabinet and control method thereof |
| CN115413178A (en) * | 2021-05-26 | 2022-11-29 | 中国移动通信集团浙江有限公司 | Ventilation floor of data center and temperature adjusting method |
| CN113873834A (en) * | 2021-09-23 | 2021-12-31 | 浪潮通信信息系统有限公司 | Down-blowing precise air conditioner airflow control system and data center machine room |
| CN113873834B (en) * | 2021-09-23 | 2023-03-24 | 浪潮通信信息系统有限公司 | Down-blowing precise air conditioner airflow control system and data center machine room |
| CN118102685A (en) * | 2024-04-29 | 2024-05-28 | 深圳前海中碳综合能源科技有限公司 | Heat dissipation system, air quantity adjusting method, device and equipment of server cabinet group |
| CN118102685B (en) * | 2024-04-29 | 2024-08-02 | 深圳前海中碳综合能源科技有限公司 | Heat dissipation system, air quantity adjusting method, device and equipment of server cabinet group |
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