CN209982954U

CN209982954U - Low-noise air energy saving device for machine room

Info

Publication number: CN209982954U
Application number: CN201821431214.4U
Authority: CN
Inventors: 刘大刚
Original assignee: Shenyang Ningsheng Fan Co Ltd
Current assignee: Shenyang Ningsheng Fan Co Ltd
Priority date: 2018-09-03
Filing date: 2018-09-03
Publication date: 2020-01-21
Anticipated expiration: 2028-09-03

Abstract

The utility model provides a low noise computer lab air can economizer, indoor outer temperature sensor, automatic control are connected with frequency modulator, data output display device respectively, constitute automatic control system control circulation of air system. The air outlet, the elastic supporting fan, the heat exchanger and the air inlet are sequentially connected by a ventilating pipeline to form an air circulation system, indoor hot air is cooled by outdoor circulation, the automatic control system is not connected with the air conditioner at all, the air inside and outside a machine room is isolated, and air exchange does not occur, so that the air dust removal problem does not need to be considered; because the hot air is cooled by the outdoor heat exchanger instead of the air conditioner, the power consumption of the air conditioner is saved, and the efficiency of the air conditioner is improved; when the outdoor temperature is between 26 and 20 ℃, the utility model works in an energy-saving mode; when outdoor temperature reaches below 20 ℃, the fan work, the air conditioner is out of work, the utility model discloses with more efficient energy-conserving mode work, it is more energy-conserving.

Description

Low-noise air energy saving device for machine room

Technical Field

The invention relates to a machine room temperature control system, in particular to a low-noise machine room air energy saving device.

Background

A large number of electronic devices are installed in a computer room, a data center and a mobile communication room, the devices work 24 hours a day to generate a large amount of heat energy, so that the temperature in the computer room is continuously increased, and in order to keep the electronic devices to normally operate, a set of temperature control system is required to discharge the heat in the computer room to the outside so that the temperature in the computer room is kept at 15-25 ℃. The temperature control system of the existing machine room mostly adopts an air conditioner to control the temperature, the machine room is sealed and isolated from the outside, no matter how the outside temperature changes, the heat in the machine room is discharged by the air conditioner, even in winter on ice, snow and the like, and a large amount of electric energy is wasted.

Disclosure of Invention

The invention aims to provide a low-noise air energy saving device for a machine room, aiming at the defects in the prior art. It is an electromechanical integrated automatic system, and can automatically control indoor temperature no matter how the temperature changes in four seasons. Multiple advanced technologies are adopted, for example, an automatic controller is used for controlling the system to automatically run, and the system has a power failure self-starting recovery function, so that unmanned management is realized. The 'elastic support fan' technology with low noise can not generate noise influence on the surrounding environment. And the modular design is convenient for various machine rooms to select and expand. The method of partition is utilized to reasonably organize air flow, hot air with higher indoor temperature is sent to an outdoor heat exchanger through a fan and a pipeline, the hot air is cooled in the heat exchanger and the pipeline, and then the cooled air is sent back to a machine room through the pipeline; when the outdoor temperature is reduced to a certain temperature, the air conditioner can be even replaced by the fan, so that the air conditioner is in a high-efficiency energy-saving mode, and the purpose of saving the power consumption of a machine room is achieved.

The object of the invention is achieved by comprising: an outdoor temperature sensor, an indoor temperature sensor,

The automatic control system is characterized in that an outdoor temperature sensor and an indoor temperature sensor are respectively connected with the automatic controller through leads, the automatic controller is respectively connected with a frequency modulator and data output display equipment through leads, and an automatic control system is formed and controls an air circulation system. The air outlet, the elastic supporting fan, the heat exchanger, the air inlet and the ventilating pipeline which is divided into three sections or N sections are sequentially connected to form an air circulation system, and indoor hot air is cooled by outdoor circulation. The air conditioner and the electronic equipment cabinet are arranged in the machine room, the air outlet is arranged above the air outlet of the electronic equipment cabinet and is connected with the fan arranged outside the machine room through a pipeline, the fan conveys indoor hot air to the heat exchanger through the pipeline for cooling, the heat exchanger is connected with the air inlet through the pipeline, the cooled air is sent back to the machine room, and the air inlet is arranged near the air return opening of the air conditioner. A fixed partition and a movable partition are arranged in the large machine room and used for organizing air flow, and the machine room is suitable for feeding air from bottom to top, namely, cold air is fed from the bottom, and air with higher temperature flows back from the top. The movable partition is convenient to move and does not influence the walking of personnel, the movable partition is provided with a vertical movable partition and an inclined plane movable partition, and 2 wheels are arranged below a metal frame of the movable partition and are convenient to move. The space below 2 meters in the machine room is movably separated, the space above 2 meters is fixedly separated, and the separation panels are uniformly made of toughened glass. The machine room air conditioner system exists independently, and the automatic control system is not connected with the air conditioner at all, so that the work of the air conditioner is not influenced; the air in the machine room is isolated from the air outside, and no gas exchange occurs, so that the problem of air dust removal does not need to be considered; the outdoor temperature sensor and the indoor temperature sensor respectively transmit signals to the automatic controller through leads, and the automatic controller controls the frequency modulator and the fan through the leads and outputs data for display. The outdoor air temperature is greatly changed all the year round, a plurality of control points are determined from low to high in the range, the control points are arranged as t1, t2, t3, t4 and t5 in sequence, 2 outdoor temperature control points are respectively t1 and t5, 3 indoor temperature control points are respectively t2, t3 and t4, in the example, t2=17 ℃, t3=20 ℃, and t4=24 ℃, when the indoor temperature reaches the control point t3, the automatic controller controls the fan to start, hot air with higher indoor temperature is sent to the outdoor heat exchanger through a pipeline, the heat exchanger cools the air to be close to the outdoor temperature and then sends the air back to the vicinity of an air return opening of the air conditioner, because the hot air is not cooled by the air conditioner but is cooled by the outdoor heat exchanger, the power consumption of the air conditioner is saved, and the efficiency of the air conditioner is improved; when the indoor temperature is reduced to be below t3, the air conditioner stops working, the fan continues working, the fan replaces the air conditioner at the moment, the indoor temperature is between the two control points of t2 and t4, and if the outdoor temperature is also reduced to be below t3 at the moment, the fan has the capacity of keeping the indoor temperature between t2 and t4 all the time, and the purpose of high efficiency and energy saving is achieved because the power consumption of the fan is only 20 percent of that of the air conditioner.

The invention has the beneficial effects that: when the outdoor temperature is reduced to below 26 ℃, the fan and the air conditioner work simultaneously, the hot air with higher temperature generated by the electronic equipment is blocked by partition walls, the hot air is sent to the outdoor heat exchanger by the fan through a pipeline, the hot air passing through the heat exchanger is cooled, the temperature is almost equal to the outdoor temperature, the cooled air is sent to the indoor space through the pipeline and enters the air conditioner, the efficiency can be improved by 3% when the temperature of the air inlet of the air conditioner is reduced by 1 ℃, therefore, the fan enters an energy-saving mode as long as the fan starts to work, the temperature difference is larger, and the energy is saved more. 2. When the indoor temperature is reduced to below 20 ℃, the air conditioner stops working, the fan works independently at the moment, and the power consumption of the fan is only 20% of that of the air conditioner, so that 80% of electricity can be saved. 3. According to the above items, when the outdoor temperature is 26-20 ℃, the system works in an energy-saving mode; when the outdoor temperature reaches below 20 ℃, the fan works, the air conditioner does not work, and the system works in a high-efficiency energy-saving mode, so that the energy is saved by 80 percent.

Drawings

The invention is further illustrated by the following examples in conjunction with the accompanying drawings

FIG. 1 is a schematic diagram of the structure and air flow of the system of the present invention.

FIG. 2 is a schematic air flow diagram for the downflow and upflow mode of the present invention.

Fig. 3 is a schematic diagram of the control principle of the system of the present invention.

Fig. 4 is a schematic diagram of the operation procedure of the system of the present invention.

Fig. 5 is a schematic air flow diagram of temperature control of a prior art air conditioner.

In the figure, 1, an air conditioner, 2, an indoor temperature sensor, 3, an air inlet, 4, an automatic controller, 5, an electronic equipment cabinet, 6, a machine room, 7, an air outlet, 8, a fan, 9, a fixed partition, 10, a heat exchanger, 11, a pipeline, 12, an outdoor temperature sensor, 13, a floor, 14, a floor air opening, 15, an inclined plane movable partition, 16, a ceiling air opening and 17, a ceiling are arranged.

Detailed Description

As can be seen from figure 1, an air conditioner and an electronic equipment cabinet 5 are arranged in a machine room 6, an air outlet 7 is arranged above an air outlet of the electronic equipment cabinet, the air outlet is connected with a fan 8 arranged outside the machine room through a pipeline, the fan conveys indoor hotter air to a heat exchanger 10 through a pipeline to be cooled, the heat exchanger is connected with an air inlet 3 through a pipeline, the cooled air is sent back to the machine room, and the air inlet is arranged near a return air inlet of the air conditioner. A fixed partition and a movable partition are arranged in the large machine room and used for organizing air flow, and the machine room is suitable for feeding air from bottom to top, namely, cold air is fed from the bottom, and air with higher temperature flows back from the top. The air sent by the air conditioner 1 is 15 ℃, the temperature of the air reaching the electronic equipment cabinet 5 is 21 ℃ after the air is mixed with ambient air, the temperature is increased by 11 ℃ after passing through the electronic equipment cabinet 5 and reaches 32 ℃, the hot air with higher temperature is blocked by the fixed partition 9, enters the air outlet 7, passes through the ventilation pipeline 11, is sent to the fan 8, is sent to the outdoor heat exchanger 10 by the fan 8 through the ventilation pipeline 11, and then is sent back to the room through the ventilation pipeline 11 and the air inlet 3, the air temperature reaching the air inlet of the air conditioner 1 is below 28 ℃, the air conditioner and the fan work simultaneously at the moment, the air conditioner belongs to an energy-saving working mode, the efficiency of the air conditioner 1 is improved by 3% when the return air temperature is reduced by 1 ℃, the temperature difference. When the indoor temperature is lower than t3(20 ℃), the air conditioner 1 stops working, the fan works independently, at the moment, 80% of electricity can be saved, the air conditioner is in a high-efficiency energy-saving mode, and if the outdoor temperature is reduced to be lower than 20 ℃, the air conditioner cannot be started and can be in the high-efficiency energy-saving mode all the time. The ventilation duct and the heat exchanger in the drawing are arranged on the roof of a machine room, which only shows the connection relation, and during actual construction, the ventilation duct and the heat exchanger should be prevented from being directly irradiated by sunlight.

As can be seen from fig. 2, the lower part of the air conditioner 1 dedicated for machine room is an air outlet, the upper part is an air return opening, the air sent to the lower part of the floor is 15 ℃, the air temperature when the air is mixed with other air and then is discharged from the air outlet 14 of the floor is 21 ℃, the air is guided to enter the electronic equipment cabinet 5 through the inclined movable partition 15, the temperature is raised to 32 ℃ and then enters the ceiling through the inclined movable partition 15 and the ceiling air opening 16, the hotter air is blocked by the fixed partition 9 and can not be mixed with other indoor air, the hotter air is sent to the outdoor heat exchanger 10 through the air outlet 7 by the fan 8 and the ventilation pipeline 11, the temperature is cooled to below 26 ℃ in the heat exchanger 10 and then is sent to the indoor again through the ventilation pipeline 11 and the air inlet 3, the air is circulated continuously, the indoor hot air is cooled by the air conditioner 1 and the heat exchanger 10 together, therefore, energy, the air conditioner 1 stops working, and 80% of energy can be saved at the moment. The invention is suitable for large machine rooms, and the air flow organization is reasonable.

As can be seen from fig. 3, the outdoor temperature sensor 12 and the indoor temperature sensor 2 respectively send signals to the automatic controller 4 through wires, the automatic controller 4 controls the frequency modulator and the fan 8 through wires, and can output and display data, and the automatic controller 8 can adopt a PLC as a main control unit or a single chip microcomputer as a main control unit.

Fig. 4 is a schematic diagram of the working procedure of the present invention, wherein W ℃ is the outdoor temperature in degrees celsius and N ℃ is the indoor temperature in degrees celsius. In the figure, 5 control points are arranged from low to high, 2 outdoor control points are arranged, and 3 indoor control points are arranged. t1 is the stop point of the fan 8 controlled by the outdoor sensor 12, t2 is the stop point of the fan 8 controlled by the indoor temperature sensor 2, and mainly prevents the indoor temperature from being too low, and the fan 8 stops working under the lines of t1 and t 2. t3 is the air conditioner 1 stop point and the fan 8 start point, the air conditioner 1 stops working below the t3 line, and the fan 8 starts working above the t3 line. t4 is the start point of the air conditioner 1, t5 is the stop point of the fan 8 controlled by the outdoor temperature sensor 12, and the fan 8 stops working when the outdoor temperature is too high, thereby preventing high temperature air from being sent into the room. the blower 8 above the lines t4 and t5 does not work, only the air conditioner 1 works, and at the moment, the air conditioner is in a normal state and does not save energy. the shaded section from the point below the t4 and the t5 to the point above the t3 is that the air conditioner 1 and the fan 8 work simultaneously, and belongs to an energy-saving mode. the air conditioner 1 does not work under the line t3, only the fan 8 works, and the high-efficiency energy-saving mode is realized at the moment. When the fan 8 works alone, if the outdoor temperature continues to fall, the frequency modulator controls the fan 8 to reduce the rotating speed, the air inlet volume is reduced, the indoor temperature reduction is avoided being too fast, the fan 8 is also avoided being started frequently, and the energy-saving effect is better at the moment.

Taking the temperature of 2017 in Shenyang area in 8 months and 25 days as an example, the temperature is described by referring to FIG. 5, the temperature at that time is 13-25 ℃, the outdoor temperature is 15 ℃ at zero point, the indoor temperature is 18 ℃, the outdoor temperature sensor 12 sends a signal to the automatic controller 4, at this time, the fan 8 works, the air conditioner 1 does not work, the indoor temperature is controlled between t2 and t4, and the system is in a high-efficiency energy-saving mode; the fan 8 can not control the indoor temperature below t4 with the temperature rising in the daytime, when the indoor temperature reaches t4, the air conditioner 1 starts to work, the indoor temperature is controlled between t3 and t4, and the system is operated in the energy-saving mode. With the continuous reduction of the temperature at night and the reduction of the outdoor temperature below 20 ℃, the outdoor temperature sensor 12 sends a signal to the automatic controller 4, the fan 8 continues to work, the air conditioner 1 stops working completely, the system is in a high-efficiency energy-saving mode, and at the moment, 80% of energy can be saved.

As can be seen from fig. 5, this is a flow chart of temperature-controlled air in the prior art, the indoor and outdoor are sealed and isolated, the air sent by the air conditioner 1 is 15 ℃, the temperature when reaching the electronic equipment cabinet 5 is 21 ℃ after being mixed with ambient air, the temperature rises by 11 ℃ after passing through the electronic equipment cabinet 5 to reach 32 ℃, all the hot air with higher temperature is left indoors, and returns to the air inlet of the air conditioner 1 after being mixed with the indoor air, the return air temperature is 26 ℃, if the refrigerating capacity of the air conditioner 1 is greater than the heat productivity of the electronic equipment 5, the indoor temperature gradually drops, and when the return air temperature drops to 20 ℃, the air conditioner 1 stops working; when the return air temperature rises to 24 ℃, the air conditioner 1 starts to work again, and the operation is repeated in this way, so that the operation is carried out all the year round.

Claims

1. A low noise computer lab air can economizer includes: the automatic control system is characterized in that the outdoor temperature sensor and the indoor temperature sensor are respectively connected with the automatic controller through wires, the automatic controller is respectively connected with the frequency modulator and the data output display equipment through wires to form an automatic control system, the automatic control system controls an air circulation system, an air conditioner and an electronic equipment cabinet are arranged in a machine room, an air outlet is arranged above the air outlet of the electronic equipment cabinet, the fan and the heat exchanger are arranged outside the machine room, and an air inlet is arranged near the air return inlet of the indoor air conditioner; the air outlet, the elastic supporting fan, the heat exchanger and the air inlet are sequentially connected by three sections or N sections of ventilating ducts, a fixed partition and a movable partition are arranged in the large machine room, the movable partition is provided with a vertical movable partition and an inclined movable partition, is used for organizing air flow, and is suitable for feeding cold air from bottom to top, namely feeding cold air from bottom and refluxing air with higher temperature from top.

2. The low-noise air energy saving device for the machine room as claimed in claim 1, wherein a movable partition is adopted in a space below 2 m in the machine room, a fixed partition is adopted in a space above 2 m, and toughened glass is uniformly adopted as the partition panels.

3. The air energy saving device of low noise machine room of claim 1, wherein two wheels are installed under the metal frame of the movable partition.