CN207649026U - A kind of control system of air conditioning air flow - Google Patents
A kind of control system of air conditioning air flow Download PDFInfo
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- CN207649026U CN207649026U CN201721606173.3U CN201721606173U CN207649026U CN 207649026 U CN207649026 U CN 207649026U CN 201721606173 U CN201721606173 U CN 201721606173U CN 207649026 U CN207649026 U CN 207649026U
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Abstract
The utility model discloses a kind of control systems of air conditioning air flow, including at least two layers of data center and at least two air-conditionings, and being deployed at least an air-conditioning, the control system in every layer data center further includes：It is fixed on the containment channel of data center's outer wall；The containment channel is hollow pipeline, and at least one end is connected to external environment；The secondary side exhaust outlet of every air-conditioning is connect with the containment channel, or the secondary side air inlet of every air-conditioning is connect with the containment channel, and the distance between the either end that the secondary side air inlet or secondary side exhaust outlet of any air-conditioning and the containment channel are connected to external environment is not less than setting length.The fractional energy savings of air-conditioning is improved in the utility model embodiment.
Description
Technical field
The utility model is related to Evaporative Cooling Air Conditioning technical field more particularly to a kind of control systems of air conditioning air flow.
Background technology
The cold air-conditioning technical of indirect evaporation is using regenerative resource air in natural environment, during direct evaporating-cooling
Air and water after cooling is final to obtain the one of cold to air pending in cooling chamber by contactless heat exchanger
The type of cooling of kind environment-friendly high-efficiency and economy, is the refrigeration air-conditioner skill of energy conservation and environmental protection and sustainable development truly
Art plays an important role in the energy-saving and emission-reduction in China.Since traditional air conditioner in machine room Energy Efficiency Ratio is generally 3.5 or so, and
Indirect evaporating-cooling can reach 10 or so in many local Energy Efficiency Ratio, therefore more and more Constructing data center persons start to close
Note indirect evaporating-cooling air-conditioning (hereinafter referred to as air-conditioning).
Apply the indirect evaporating-cooling system schematic of air-conditioning technical in the prior art as shown in Figure 1, there are primary side and
Secondary side, left side as shown in Figure 1 (left and right shown in Fig. 1) is that primary side is entered the wind, and includes the hot return air of data center, right side
(left and right shown in Fig. 1) is primary side air draft, includes the cold wind that data center is sent to through supercooling, lower section is (shown in Fig. 1
Be up and down) that secondary side is entered the wind, including outdoor fresh air, top is secondary side air-out, include by the air draft of heat exchange, air-conditioning it is secondary
The state of side air inlet air largely influences the degree of power conservation of system.The structure of each module of indirect evaporating-cooling system
Can according to the air current composition of data center and there are many mode of texturing, but all necessarily follow the mode of Fig. 1 schematic diagrames, exist
The air inlet/outlet of primary side and the air inlet/outlet of secondary side, and there is intersection in the two air-flow.
In practical applications, when more air conditioning applications are in single layer, the secondary side air inlet of air-conditioning can place and secondary side
Air draft is placed on the same side, for example, Fig. 2 is the roof applied in data center machine room, in the direction all around of view,
The case where more air-conditionings can be placed, hot air reflux is not present；It is illustrated in figure 3 and applies in the side of data center machine room,
More air-conditionings can be generally placed on the front-rear direction of view, and the situation of hot wind short circuit is also not present.
It is illustrated in figure 4 the schematic diagram of more air-conditioning multilayers placement, there are two layers of data center, 1 layer of sum numbers of data center
It is placed with corresponding air-conditioning respectively according to 2 layers of center, and the primary side of every air-conditioning and the air inlet/outlet of secondary side are as shown, number
May be sucked by the air-conditioning of 2 layers of data center according to the hot wind of the air-conditioning secondary side discharge at 1 layer of center, that is, air-conditioning secondary side
Air inlet/outlet the case where there are hot air refluxes.By to air conditioning applications multilayer CFD (Computational Fluid
Dynamics, computational fluid dynamics) analysis, change primary side and secondary side and air inlet/outlet direction in any case, the two of air-conditioning
Always all there is the case where hot air reflux in secondary side air inlet/outlet, upper layer air-conditioning can suck the hot wind of lower layer's air-conditioning discharge.According to air-conditioning
The simulation analysis data in multilayer are applied, when environment temperature is 30 DEG C, the leaving air temp of lower layer's air-conditioning is 42 DEG C, upper layer air-conditioning
40 DEG C of inlet air temperature average out to, the inlet air temperature of upper layer air-conditioning is higher than environment temperature, it may thus be appreciated that upper layer air-conditioning is inhaled in large quantities
The hot wind of Ru Liao lower layers air-conditioning discharge, there are hot air refluxes, after the spacing of the unit of upper layer and lower layer air-conditioning is increased to 10 meters, root
According to increase spacing after air conditioning applications multilayer simulation analysis data, when environment temperature be 30 DEG C when, the outlet air of lower layer's air-conditioning
Temperature is 42 DEG C, and 37 DEG C of the inlet air temperature average out to of upper layer air-conditioning, the inlet air temperature of upper layer air-conditioning is still higher than environment temperature, can
The hot wind that sees upper layer air-conditioning still and can suck lower layer's air-conditioning discharge, the phenomenon that still remaining hot air reflux, only compared to
Weakened away from hot air reflux phenomenon before increase (air-conditioning cold flow and air quantity are different, and bilevel effect of distance is also different, this
Single air conditioner cold 600kW in example).But the height of the actually each floor of data center is generally 4 to 5 meters, removes air-conditioning
Unit 3 to 4 meters of height, remaining height deficiency to avoid levels hot air reflux, it may thus be appreciated that when air conditioning applications exist
When Multilayer datacenter, no matter air-conditioning primary side and secondary sidewind how to combine, the secondary side of levels air-conditioning air inlet and
All there is the phenomenon that hot air reflux in air draft, upper layer air-conditioning can suck the hot air draft of lower layer's air-conditioning, to weaken the fractional energy savings of air-conditioning,
Influence the energy-saving effect of air-conditioning.
Utility model content
The utility model provides a kind of control system of air conditioning air flow, existing to solve to exist in the prior art hot air reflux
As the problem for causing air conditioner energy saving rate low.
The utility model provides a kind of control system of air conditioning air flow, including at least two layers of data center and at least two skies
It adjusts, being deployed at least an air-conditioning, the control system in every layer data center further includes：It is fixed on holding back for data center's outer wall
Channel processed；
The containment channel is hollow pipeline, and at least one end is connected to external environment；
The secondary side exhaust outlet of every air-conditioning is connect with the containment channel, and the secondary side air inlet of any air-conditioning, and
The distance between either end that the containment channel is connected to external environment is not less than setting length；Or
The secondary side air inlet of every air-conditioning is connect with the containment channel, and the secondary side exhaust outlet of any air-conditioning, and
The distance between either end that the containment channel is connected to external environment is not less than setting length.
Further, the containment channel is at least one；
The setting length is not less than the unit length of an air-conditioning.
Further, the control system further includes：Control module, the control module include at least one sensor and
Control device；
The sensor is connect with the conduit wall in the containment channel, the monitor value for acquiring installation site；
The control device is connect with the sensor, for receiving the collected monitor value of the sensor, judges institute
State monitor value whether be more than setting monitoring threshold, if so, the control module control it is described containment channel in air quantity or
Cold.
Further, if the sensor includes differential pressure pickup；
The differential pressure pickup is specifically used for the pressure difference in acquisition containment channel and external environment；
Whether the control device is connect with every air-conditioning, be more than the pressure set specifically for the pressure difference for judging to receive
Poor threshold value, if so, the control module reduces the condensation fan rotating speed with the channel attached air-conditioning of containment.
Further, if the sensor includes air velocity transducer；
The air velocity transducer is specifically used for acquiring the gas velocity angle value in the containment channel；
Whether the control device is connect with every air-conditioning, be more than setting specifically for the gas velocity angle value for judging to receive
Air velocity threshold value, if so, the control module reduces the condensation fan rotating speed with the channel attached air-conditioning of the containment.
Further, the control system further includes：At least one temperature sensor and at least one spray head, Mei Gechuan
Sensor is fixed on the secondary side air inlet of air-conditioning, and each spray head is fixed on the machine unit shell of air-conditioning, and each spray head with
Water supply line connects；
The temperature sensor is specifically used for the temperature value of the secondary side air inlet of acquisition air-conditioning；
Whether the control device is more than the temperature threshold set specifically for the temperature value for judging to receive, such as
Fruit is that the control module opens the spray head, and reduces turn with the condensation fan of the channel attached air-conditioning of containment
Speed.
Further, the control system further includes：At least one wind turbine；
At least one wind turbine is connected to the either end that the containment channel is connect with external environment.
Further, the control system further includes：Connecting tube corresponding with every air-conditioning；It is arranged on containment channel side wall
Have a third through-hole corresponding with connecting tube, the secondary side air inlet of the side of connecting tube and corresponding air-conditioning connects, or with it is corresponding
Air-conditioning secondary side exhaust outlet connection；The other side of connecting tube is connected with corresponding third through-hole on containment channel side wall.
Further, the control system further includes：The air-valve being connected in each connecting tube.
The utility model provides a kind of control system of air conditioning air flow, including at least two layers of data center and at least two
Air-conditioning, being often deployed at least an air-conditioning, the control system in layer data center further includes：It is fixed on data center's outer wall
Contain channel；The containment channel is hollow pipeline, and at least one end is connected to external environment；The secondary side row of every air-conditioning
Air port is connect with the containment channel, and the secondary side air inlet of any air-conditioning and the containment channel are connected to external environment
The distance between either end not less than setting length；Or the secondary side air inlet of every air-conditioning is connect with the containment channel,
And the distance between the either end that the secondary side exhaust outlet of any air-conditioning and the containment channel are connected to external environment is not less than
Set length.The secondary side exhaust outlet of every air-conditioning or secondary side air inlet connect with containment channel in the utility model embodiment
It connecing, the secondary side that air-conditioning has been isolated is entered the wind and secondary side air-out, the secondary side air inlet or secondary side exhaust outlet of any air-conditioning, and
The distance between either end that containment channel is connected to external environment avoids not less than setting length and hot air reflux phenomenon occurs
To improve the fractional energy savings of air-conditioning.
Description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, other drawings may also be obtained based on these drawings.
Fig. 1 is the indirect evaporating-cooling system schematic using indirect evaporating-cooling air-conditioning technical；
Fig. 2 is roof schematic diagram of the indirect evaporating-cooling air conditioning applications in single layer data central machine room；
Fig. 3 is side schematic diagram of the indirect evaporating-cooling air conditioning applications in single layer data central machine room；
Fig. 4 is the schematic diagram that more indirect evaporating-cooling air-conditionings are placed in Multilayer datacenter；
Fig. 5 is a kind of control system schematic diagram for air conditioning air flow that the utility model embodiment 1 provides；
Fig. 6 is the control system schematic diagram for another air conditioning air flow that the utility model embodiment 1 provides；
Fig. 7 is a kind of front view of the control system for air conditioning air flow that the utility model embodiment 2 provides；
Fig. 8 is a kind of side view of the control system for air conditioning air flow that the utility model embodiment 2 provides；
Fig. 9 is the control system front view for another air conditioning air flow that the utility model embodiment 2 provides；
Figure 10 is the side view of the control system for another air conditioning air flow that the utility model embodiment 2 provides；
Figure 11 is a kind of control process schematic for control module that the utility model embodiment 3 provides；
Figure 12 is the logical schematic that a kind of control module that the utility model embodiment 3 provides is controlled；
Figure 13 is a kind of control system schematic diagram for air conditioning air flow that the utility model embodiment 4 provides；
Figure 14 is a kind of control system schematic diagram for air conditioning air flow that the utility model embodiment 5 provides.
Specific implementation mode
In order to avoid there is hot air reflux phenomenon to improve the fractional energy savings of air-conditioning, the utility model embodiment provides one
The control system of kind air conditioning air flow.
In order to keep the purpose of this utility model, technical solution and advantage clearer, below in conjunction with attached drawing, this practicality is new
Type is described in further detail, it is clear that and described embodiment is only a part of the embodiment of the utility model, rather than
Whole embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work
Under the premise of the every other embodiment that is obtained, shall fall within the protection scope of the present invention.
Embodiment 1：
The utility model embodiment provides a kind of control system of air conditioning air flow, including at least two layers of data center and extremely
Lack two air-conditionings, being deployed at least an air-conditioning, the control system in every layer data center further includes：It is fixed on data center
The containment channel of outer wall；
The containment channel is hollow pipeline, and at least one end is connected to external environment；
The secondary side exhaust outlet of every air-conditioning is connect with the containment channel, and the secondary side air inlet of any air-conditioning, and
The distance between either end that the containment channel is connected to external environment is not less than setting length；Or
The secondary side air inlet of every air-conditioning is connect with the containment channel, and the secondary side exhaust outlet of any air-conditioning, and
The distance between either end that the containment channel is connected to external environment is not less than setting length.
In order to avoid there is hot air reflux phenomenon to improve the fractional energy savings of air-conditioning, the utility model embodiment provides one
The control system of kind air conditioning air flow, the control system of the air conditioning air flow can be applied to the data center of multilayer.
Air-conditioning described in the utility model embodiment is the air-conditioning for applying indirect evaporating-cooling air-conditioning technical, i.e., indirectly
Evaporative Cooling Air Conditioning, hereinafter referred to as air-conditioning.
Since in the data center of multilayer, the secondary side of the air-conditioning of the data center deployment on upper layer is entered the wind, and can be sucked down
, there is hot air reflux phenomenon, it is preferred that the air conditioning air flow in the hot wind of the secondary side discharge of the air-conditioning of layer data center deployment
Control system in the data center of multilayer, the number of plies of data center can be 2 layers, 3 layers or 5 layers etc..Air-conditioning it is secondary
Side is entered the wind and secondary side air draft process is realized by the unit of air-conditioning.
Due to not changed to the air-conditioning disposed in data center in the utility model embodiment, the unit of air-conditioning
Secondary side exhaust outlet and secondary side air inlet are identical as existing air-conditioned construction and position, and the primary side of the unit of air-conditioning into
Air port is also identical as now air-conditioned construction and position as primary side exhaust outlet, is every layer data center deployment at least sky
It adjusts, and the side wall per layer data center is provided with first through hole corresponding with the air-conditioning of deployment and the second through-hole, first through hole
It is connect with the primary side air inlet of air-conditioning, the primary side exhaust outlet connection of the second through-hole and air-conditioning.
The primary side of air-conditioning is used to carry out air-flow with data center module to exchange, and specifically the primary side air inlet of air-conditioning is for inhaling
Enter the hot return air of data center, the primary side return air inlet of air-conditioning by cold wind after cooling for that will be sent to data center.Air-conditioning
Secondary side be used to carry out air-flow with external environment to exchange, specifically the secondary side air inlet of air-conditioning is for sucking external environment
Cold wind, that is, outdoor fresh air, the secondary side exhaust outlet of air-conditioning are used to the hot wind after heat exchange being discharged to external environment.
The control system of the air conditioning air flow includes at least two layers of data center and at least two air-conditionings, and in order to protect
The normal work for demonstrate,proving equipment in data center all disposes an at least air-conditioning per layer data center.Assuming that there are two layers of data
Center at least can be then to be deployed in upper layer data center in the presence of an at least air-conditioning in two air-conditionings, remaining air-conditioning is deployed in
Lower data center can also be that an at least air-conditioning is deployed in lower data center, remaining air-conditioning is deployed in upper layer data
The heart.
Further include containment channel in the control system of the air conditioning air flow, containment channel is fixed on data center's outer wall, contains
Channel can be that data center's outer wall is fixed on by way of fixing piece, can also be to be with ground if fixing piece is pipe clamp
Benchmark is built to be fixedly connected with data center outer wall, and containment channel is at least one.
Contain that channel is the pipeline for containing air-flow, specifically contains that channel is the secondary side air draft for air-conditioning to be isolated
With the pipeline of secondary side air inlet.
Containment channel is hollow pipeline, and the material in the containment channel can be steel plate, galvanized sheet, stainless steel, plastics ventilation
Pipe and composite material ventilation duct etc., can complete the pipeline of air inlet and air-exhausting function can apply, in the utility model reality
It applies in example and does not repeat.At least one end in containment channel is connected to external environment, cold airflow for sucking external environment or to
Thermal current is discharged in external environment.
When containment channel, which only has one end, to be connected to external environment, contain another end seal that channel is not connected to external environment
It closes.
Specifically, when containing channel vertically (level ground that compares vertical) deployment, then usually contain passage end
It is connected to external environment, other end closing, when containing channel horizontal (level for the level ground that compares) deployment, then usually holds back
The both ends in channel processed are connected to external environment.
The secondary side exhaust outlet of every air-conditioning connect with containment channel, the secondary side air inlet of containment channel separation air-conditioning with
Between secondary side air draft, and the secondary side air inlet of any air-conditioning, and the either end that is connected to external environment of containment channel away from
From not less than setting length, the secondary side air inlet of upper layer data center air-conditioner is avoided to a certain extent, sucks lower data
The hot wind of the secondary side discharge of center air-conditioner；The secondary side air inlet of every air-conditioning is connect with containment channel, contains channel separation
The secondary side air inlet of air-conditioning and secondary side air draft, and the secondary side exhaust outlet of any air-conditioning, and containment channel and external environment
The distance between either end of connection avoids the secondary of upper layer data center air-conditioner to a certain extent not less than setting length
Side is entered the wind, the hot wind of the secondary side discharge of sucking lower data center air-conditioner.
Can be secondary side air draft when the secondary side exhaust outlet and/or secondary side air inlet of air-conditioning are connect with containment channel
Mouth and/or secondary side air inlet and corresponding connecting tube, then connect with containment channel by connecting tube.
When at least one containment channel is connect with the secondary side exhaust outlet of every air-conditioning, can be and lower data center
Every air-conditioning secondary side exhaust outlet connection, can also be with per layer data center every air-conditioning secondary side exhaust outlet connect
It connects, wherein lower data center includes the data center of other layers in addition to the data center of top.Contain channel with it is every
Can be connect with the secondary side air inlet of every air-conditioning at upper layer data center when the secondary side air inlet connection of platform air-conditioning,
Can also be to be connect with the secondary side air inlet of every air-conditioning per layer data center, wherein upper layer data center includes removing most bottom
The data center of other layers except the data center of layer.
The setting length is not less than the unit length of an air-conditioning.According to each actual product, the unit knot of air-conditioning
The length, width and height of structure size can have different definition, such as can be using the minimum value on unit appearance and size three-dimensional as unit
Length, can also be using the maximum value on unit appearance and size three-dimensional as unit length etc..
Pre-determined distance is removed with the unit length phase of air-conditioning outside the Pass in practical application, it is also necessary to consider the temperature in external environment
Degree, many factors such as the ability to work of air-conditioning, and the crushing in containment channel, it is believed that those skilled in the art can be according to practical feelings
Setting length can be arranged in condition, and carries out the deployment in containment channel.
The control system of the air conditioning air flow to being provided in the utility model embodiment of illustrating below illustrates.
Fig. 5 is a kind of control system schematic diagram for air conditioning air flow that the utility model embodiment provides, the air conditioning air flow
Control system includes 3 layers of 2 layers of data center and data center, and three air-conditionings, every air-conditioning are all deployed in every layer data center
Secondary side air inlet and secondary side air-out as shown, be also deployed in the control system of the air conditioning air flow two containment channels,
This two containment channel one end Jun You are connected to external environment, wherein a containment channel and 2 layers of data center and data center 3
The secondary side exhaust outlet of a left side (left, center, right as shown in Figure 5) the side air-conditioning of layer and intermediate air-conditioning connect, another contain channel and
The intermediate air-conditioning of 3 layers of 2 layers of data center and data center is connected with the secondary side exhaust outlet of right side air-conditioning, and this two containments
The distance between secondary side air inlet of one end and air-conditioning that channel is connected to external environment is not less than setting length, as schemed institute
Show length of the setting length not less than the unit of an air-conditioning, to ensure that the secondary side air inlet of air-conditioning does not suck the secondary of air-conditioning
The hot wind of side discharge.
Fig. 6 is the control system schematic diagram for another air conditioning air flow that the utility model embodiment provides, the air conditioning air flow
Control system include 3 layers of 2 layers of data center and data center, be all deployed with three air-conditionings, every air-conditioning per layer data center
Secondary side air inlet and secondary side air-out as shown, be also deployed in the control system of the air conditioning air flow two containment channels,
The both ends in this two containment channels are connected to external environment, wherein air-conditioning for containing 2 layers of channel and data center is secondary
The secondary side exhaust outlet of the connection of side exhaust outlet, the air-conditioning of 3 layers of another containment channel and data center is connect, and any air-conditioning
Secondary side exhaust outlet and the distance between the either end that connect with external environment of corresponding containment channel grow not less than setting
Degree sets length of the length not less than the unit of an air-conditioning as shown in the figure, to ensure that the secondary side air inlet of air-conditioning does not suck
The hot wind of the secondary side discharge of air-conditioning.
Due to the secondary side exhaust outlet of every air-conditioning in the utility model embodiment or secondary side air inlet and containment channel
Connection, the secondary side that air-conditioning has been isolated is entered the wind and secondary side air-out, the secondary side air inlet or secondary side exhaust outlet of any air-conditioning,
The distance between either end for be connected to external environment of containment channel avoids not less than length is set and hot air reflux occurs and show
As to improve the fractional energy savings of air-conditioning.
Embodiment 2：
It is described in the utility model embodiment in order to ensure the reliability service of system on the basis of the various embodiments described above
Control system further includes：Control module, the control module include at least one sensor and control device；
The sensor is connect with the conduit wall in the containment channel, the monitor value for acquiring installation site；
The control device is connect with the sensor, for receiving the collected monitor value of the sensor, judges institute
State whether monitor value is more than the monitoring threshold set, if so, control module controls the air quantity in the containment channel.
It further include control module in the control system of the air conditioning air flow provided in the utility model embodiment, and control module
Including at least one sensor and control device, sensor acquires the monitor value of installation site, and control module is true when control device
Air quantity when determining monitor value more than monitoring threshold in control containment channel is to ensure cold.
Can be that sensor is fixed on structural member, by sensor when sensor is connect with the conduit wall in containment channel
The modes such as welding, bonding or riveting that may be used are fixed on conduit wall or are fixed on structural member.
Can be deployed at least one biography on the conduit wall for contain channel at this when there are a containment channel
Sensor；Can dispose at least one sensor on the arbitrarily conduit wall in containment channel when there are a plurality of containment channel, compared with
Goodly, can be deployed at least one sensor on every conduit wall for containing channel.
In order to enable the monitoring result of sensor is more accurate, preferably, can be by sensor and containment channel interior air-flow
The corresponding conduit wall connection in stable region.
The type and quantity for the sensor disposed on the conduit wall in every containment channel can be arbitrary, specifically, Ke Yigen
Contain the sensor of deployment setting value volume and range of product on the conduit wall in channel at every according to actual demand.
Different types of sensor can collect containment channel interior air-flow inhomogeneity when the air-flow in channel is contained in detection
The monitor value of type.Sensor can acquire in real time, can be the time every setting when acquiring the monitor value of installation site
Interval is acquired, and can also be to be acquired at preset time point.
Control module in the control system of the air conditioning air flow further includes control device, which can be desktop meter
The electronic equipments such as calculation machine, portable computer, smart mobile phone, tablet computer, network side equipment.
When the air quantity or cold in channel are contained in control module control, it can be controlled by adjusting the rotating speed of air-conditioning draught fan
Air quantity further can also ensure cold, in the utility model embodiment by opening on air-conditioner set fixed spray head
Fixed position of the spray head on air-conditioner set with it is existing identical, be all integrally fixed under air-conditioner set secondary side condensation fan
Side, this will not be repeated here.
Collected installation site monitor value in monitoring process can be reported to control device, control device by each sensor
The collected monitor value of sensor can be received, if control device judges that monitor value is more than the monitoring threshold of setting, is controlled
Air quantity in molding block control containment channel.
Monitoring threshold is pre-stored in control device, for same type of sensor in different containment channels, control
The corresponding monitoring threshold preserved in control equipment can be identical, can be different.
Since the sensor that different containment channel interiors is affixed one's name to is different, control device can be according to different sensors
The monitor value reported determines the corresponding containment channel of sensor, to which control module can control in corresponding containment channel
Air quantity.
Specifically, each biography that the identification information in containment channel is preserved in control device and is deployed in the containment channel
The correspondence of the identification information of sensor, sensor carry the identification information of itself in the air-flow monitoring data reported, control
For control equipment according to the identification information of the sensor in air-flow detection data, the correspondence preserved with itself determines the sensor
The identification information in corresponding containment channel, so that it is determined that the corresponding containment channel of sensor.
For every containment channel, if only there are one sensors for deployment in the containment channel, control device can root
Judge whether being more than monitoring threshold according to the collected monitor value of the sensor, if so, control module control containment channel
Interior air quantity is to ensure cold；If there are same kind of multiple sensors in containment channel interior administration, control device can be with
Judge whether each monitor value is more than monitoring threshold, if it is the air quantity or cold in control module control containment channel,
Can be in the average value and value for judging each monitor value, maximum value and minimum value at least one of with the presence or absence of be more than monitoring
Threshold value, if it is the air quantity in control module control containment channel to be to ensure cold, can also be according to each monitor value and
The new monitor value that other optimization algorithms determine, when the new monitor value is deposited when abnormal in then control module control containment channel
Air quantity or cold；If containment channel interior administration there are different types of multiple sensors, the biography of each type can be integrated
The collected monitor value of sensor judges whether the monitor value of the sensor of each type is more than monitoring threshold, if it is control mould
Air quantity in block control containment channel is to ensure cold.
It is also illustrated with above-described embodiment, Fig. 7 is a kind of control for air conditioning air flow that the utility model embodiment provides
The front view of system, Fig. 7 are on the basis of Fig. 5, and in containment channel interior administration, there are two sensors, for acquiring installation site
Monitor value, as shown in fig. 7, air-conditioning of the data center on vertical height direction unit share one containment channel, it is secondary
Side air inlet i.e. outdoor fresh air can suck (bottom as shown in Figure 7 by the bottom of air-conditioning and/or front and/or side
Portion, front or side), it is then discharged by top (top as shown in Figure 7), i.e., by containing what channel was connect with external environment
One end is discharged, and by containing that channel detaches the cold-hot wind of the air-conditioning on vertical height direction, improves the fractional energy savings of air-conditioning.
Fig. 8 is a kind of side view of the control system for air conditioning air flow that the utility model embodiment provides, and Fig. 8 is Fig. 7's
Side view, as shown in figure 8, the primary side air inlet and primary side return air of air-conditioning are as shown, secondary side air inlet is namely outdoor new
Wind can be immediately ahead of the both sides of the unit of air-conditioning or underface (both sides or lower section as shown in Figure 8), the unit of air-conditioning
Contain channel and control device.
Fig. 9 is the control system front view for another air conditioning air flow that the utility model embodiment provides, and Fig. 9 is in Fig. 6
On the basis of, the unit per the air-conditioning of layer data center in the horizontal direction shares a containment channel, in each containment channel
Interior deployment is there are one sensor, the monitor value for acquiring installation site, and secondary side air inlet can be with the both sides or lower section of unit
The air draft front of (both sides or lower section as shown in Figure 9), unit is containment channel and control device, by the sky in horizontal direction
The cold-hot wind of the unit of tune detaches, and improves the fractional energy savings of air-conditioning.
Figure 10 is the side view of the control system for another air conditioning air flow that the utility model embodiment provides, and Figure 10 is figure
9 side view, the primary side air inlet and primary side return air of air-conditioning are as shown, be containment channel and control immediately ahead of the air draft of air-conditioning
Control equipment.
Since at least one sensor is connect with the conduit wall in containment channel in the utility model embodiment, installation position is acquired
The monitor value set, therefore control module can be when control device determines that monitor value is more than monitoring threshold, in control containment channel
Air quantity to ensure cold, to ensure that the stability of system.
Embodiment 3：
In order to further ensure the stability of system, on the basis of the various embodiments described above, in the utility model embodiment,
The sensor includes differential pressure pickup；
The differential pressure pickup is specifically used for the pressure difference in acquisition containment channel and external environment；
Whether the control device is connect with every air-conditioning, be more than the pressure set specifically for the pressure difference for judging to receive
Poor threshold value, if so, control module reduces the condensation fan rotating speed with the channel attached air-conditioning of containment.
The sensor includes air velocity transducer；
The air velocity transducer is specifically used for acquiring the gas velocity angle value in the containment channel；
Whether the control device is connect with every air-conditioning, be more than setting specifically for the gas velocity angle value for judging to receive
Air velocity threshold value, if so, control module reduces the condensation fan rotating speed with the channel attached air-conditioning of the containment.
Control device realizes control module in containment channel according to the collected monitor value of different types of sensor
The further control of air quantity or cold, to further ensure the stabilization and reliability service of system.
The type of sensor includes at least differential pressure pickup and air velocity transducer, therefore is disposed on the conduit wall in containment channel
At least one sensor be at least one of above type.
Differential pressure pickup can be used for acquiring the pressure difference in containment channel and external environment, and external environment can be air-conditioning
External environment where unit contains that the both ends in channel are connect with external environment.
The air quantity that the collected pressure difference of differential pressure pickup can characterize in containment channel can be with if pressure difference is excessive
Think to contain that the air quantity in channel is excessive, crushing, the noise that may result in containment channel are excessive, it is also possible to occur in channel
Airflow leaks, reduce the stability of system, can also reduce the fractional energy savings of air-conditioning.
Air velocity transducer can be used for acquiring the gas velocity angle value in containment channel.
The collected gas velocity angle value of air velocity transducer can characterize the air quantity in containment channel, if gas velocity angle value mistake
Greatly, it is believed that the air quantity in containment channel is excessive, and crushing, the noise that may result in containment channel are excessive, it is also possible to go out
Airflow leaks in existing channel, reduce the stability of system, can also reduce the fractional energy savings of air-conditioning.
In addition, gas velocity angle value and pressure difference can be converted by algorithm, the transfer process of air velocity and pressure difference
Belong to the prior art, is not repeated in the utility model embodiment.
Different types of collected monitor value of sensor is different, therefore control device judges whether monitor value is more than monitoring
The process of threshold value also different from.
If sensor be differential pressure pickup, control device judge the collected pressure difference of differential pressure pickup whether be more than
The threshold pressure differential of setting, if it is, in order to ensure that the stability of system, control module reduce and contains channel attached air-conditioning
Condensation fan rotating speed, make air-conditioning reduce sucking air quantity or discharge air quantity, to realize to containment channel in air quantity
Control.
According to the collected pressure difference of one or more differential pressure pickups, judge pressure difference whether be more than threshold pressure differential mistake
Journey judges whether monitor value is more than monitoring threshold with above-described embodiment according to the collected monitor value of one or more sensors
Process is identical, is not repeated in the utility model embodiment.
Threshold pressure differential is pre-stored in control device, and threshold pressure differential is set as according to empirical value setting or this field
The empirical value of technical staff's setting, under normal circumstances threshold pressure differential need according to the cold and air quantity of unit, containment channel design
The combined factors such as pressure difference, level of noise, the economy allowed determine.
If control device determines that pressure difference is no more than the threshold pressure differential of setting, control module keeps the condensating wind of air-conditioning
The current rotating speed of machine is constant, does not control the air-flow in containment channel.
If sensor is air velocity transducer, whether control device judges the collected gas velocity angle value of air velocity transducer
More than the air velocity threshold value of setting, if it is, in order to ensure the stability of system, control module is reduced to be connected with containment channel
The rotating speed of the condensation fan of the air-conditioning connect makes air-conditioning reduce the air quantity of sucking or the air quantity of discharge, to realize to containing channel
The control of interior air quantity.
According to the collected gas velocity angle value of one or more air velocity transducers, judge whether gas velocity angle value is more than air-flow
The process of threshold speed judges whether monitor value surpasses with above-described embodiment one or more sensors according to collected monitor value
The process for crossing monitoring threshold is identical, is not repeated in the utility model embodiment.
Air velocity threshold value is pre-stored in control device, and air velocity threshold value is set as being set according to empirical value
Or the empirical value of those skilled in the art's setting.
If control device determines that gas velocity angle value is no more than the air velocity threshold value of setting, control module keeps air-conditioning
Condensation fan current rotating speed it is constant, not to containment channel in air-flow control.
Due to can be converted by algorithm between pressure difference and gas velocity angle value, pressure difference can also be converted
For gas velocity angle value, judge accordingly and control, or gas velocity angle value is converted to pressure difference, be sentenced accordingly
Disconnected and control.
In order to further ensure the cold of data center, the control system further includes：At least one temperature sensor and
At least one spray head, each sensor are fixed on the secondary side air inlet of air-conditioning, and each spray head is fixed on the unit of air-conditioning
On, and each spray head is connect with water supply line；
The temperature sensor is specifically used for the temperature value of the secondary side air inlet of acquisition air-conditioning；
The control device is specifically used for the condensation fan rotating speed in the reduction and the channel attached air-conditioning of containment
Before, judge whether the temperature value received is more than the temperature threshold set, if so, control module opens the spray
Head, and reduce the rotating speed with the condensation fan of the channel attached air-conditioning of containment.
If there is different types of sensor in containment channel interior administration, control module can be according to the sensing of each type
Air-flow in the monitor value co- controlling containment channel of device is to ensure cold.
Temperature sensor is used to acquire the temperature value of the secondary side air inlet of air-conditioning, specifically the collected temperature of temperature sensor
Angle value is the temperature value of the secondary side air inlet for the air-conditioning for being equipped with the temperature sensor.
If at least one sensor further includes temperature sensor, in order to ensure the stability of system, air-conditioning is being reduced
Condensation fan rotating speed before, control device judge the collected air-conditioning of temperature sensor secondary side air inlet temperature value whether
More than the temperature threshold of setting, if so, control module control is fixed at least one spray head on the machine unit shell of air-conditioning
Unlatching, and the rotating speed with the condensation fan for containing channel attached air-conditioning is reduced, so that air-conditioning is reduced the air quantity or discharge sucked
Air quantity is to ensure cold.
According to the collected temperature value of one or more temperature sensors, judge temperature value whether be more than temperature threshold mistake
Journey judges whether monitor value is more than monitoring threshold with above-described embodiment one or more sensors according to collected monitor value
Process is identical, is not repeated in the utility model embodiment.
Temperature threshold is pre-stored in control device, and temperature threshold is set as according to empirical value setting or this field
The empirical value of technical staff's setting.
Specific spray head can be fixed on the machine unit shell of air-conditioning, and positioned at the lower section of condensation fan.
Spray head is fixed on the secondary side exhaust outlet of air-conditioning under normal conditions, and is located at the lower section of corresponding condensation fan,
It opens spray and is further ensured that the cold of data center is constant, to make data center's steady operation.
In addition it is also related with the collected temperature value of temperature sensor that spray can whether be opened, when as too low such as temperature value,
Spray head may have the phenomenon that freezing, and be not suitable for spraying at this time, and water can go out when temperature value is less than 0 degree Celsius under normal conditions
It now freezes, therefore when temperature value is less than 0 degree Celsius, it is believed that temperature value is too low.
Control device judges whether temperature value includes working as more than temperature threshold before the condensation fan rotating speed for reducing air-conditioning
When control device judges that pressure difference is more than threshold pressure differential, judge whether temperature value is more than temperature threshold, if it is, control module
It opens spray head and reduces the condensation fan rotating speed of air-conditioning, if not, the condensation fan of control module holding air-conditioning works as forward
Speed is constant；And/or when control device judges that gas velocity angle value is more than air velocity threshold value, judge whether temperature value is more than temperature
Threshold value, if it is, control module opens spray head and reduces the condensation fan rotating speed of air-conditioning, if not, control module is kept
The current rotating speed of the condensation fan of air-conditioning is constant.
The process that control module control spray head is turned on and off includes control module by controlling spray head water supply line
On valve member be turned on and off, and be turned on and off with the water pump of water supply line, spray head be turned on and off to realize.
Such as there are one differential pressure pickup and a temperature sensors for containment channel interior administration, as shown in figure 11, control is set
It is standby to judge whether the collected pressure difference Δ P of differential pressure pickup is more than the threshold pressure differential Δ Pset set, if so, illustrating to contain
Pressure value in channel is bigger than normal, it is possible to condense that air quantity is excessive, and channel crushing is excessive, and noise is excessive, if it is not, then illustrating to contain
Pressure value in channel is normal, then control module is maintained the statusquo, and keeps the current rotating speed of the condensation fan of air-conditioning constant；Judge temperature
Spend whether the collected temperature value Ta of sensor is more than the temperature threshold Tset set, if it is, control module opens spray,
Rotation speed of fan is reduced, to radiate by the unit secondary side for spraying auxiliary air conditioner, and condensation air quantity is reduced, if Ta does not surpass
Tset is crossed, then illustrating to spray at this time cannot use, if condensation air quantity can not be reduced at this time, it is believed that whole system can not
Normal operation then needs to alert to maintenance personnel, maintenance personnel is reminded to search problem, wherein the reason of condensation air quantity cannot be reduced
Including：Because reducing or needing to be adjusted the unit of air-conditioning according to data center's workload demand when increasing condensation air quantity,
If reducing the rotating speed of condensation fan by force, the cold of the unit of air-conditioning is reduced, then can influence the safety fortune of data center apparatus
Row.
The logical schematic that control module is specifically controlled is as shown in figure 12, and control module opens spray, reduces condensation
The process of air quantity specifically includes unlatching spray, reduces condensation fan rotating speed, judges the temperature of the temperature value monitored and external environment
The corresponding temperature difference of angle value, if it is more than the temperature difference threshold of setting, the rotating speed of condensation fan is continued growing if it is control module,
If otherwise control module reduces the rotating speed of condensation fan.Each unit in containment channel needs to control spray as procedure described above
The cooperation of leaching and condensation fan rotating speed, wherein when the rotating speed of adjustment condensation fan can with the step-length of setting or the step-length of variation into
Row adjustment.
Since in the utility model embodiment, control device monitors number according to the collected air-flow of different types of sensor
According to, realize control module to contain channel interior air-flow further control, to further ensure system stabilization and can
By operation.
Embodiment 4：
In order to promote air inlet or the air draft of containing channel, on the basis of the various embodiments described above, the utility model embodiment
In, the control system further includes：At least one wind turbine；
At least one wind turbine is connected to the either end that the containment channel is connect with external environment.
When containing that channel is long or narrow, containment in-passage pressure damage will increase, and control module is empty by controlling
The rotating speed of the condensation fan of tune is not enough to overcome the increased crushing in this part, appoints at this time what containment channel was connect with external environment
One end series connection wind turbine, the air inlet in auxiliary containment channel or air draft.
When containing that the secondary side air inlet in channel and air-conditioning connects, and contain the either end that channel is connect with external environment
The wind turbine of connection can promote the air inlet for containing channel；When containing that the secondary side air outlet in channel and air-conditioning connects, and containment
The wind turbine for the either end connection that channel is connect with external environment can promote the air draft for containing channel.
Such as control module is when determining that the collected monitor value of sensor is more than monitoring threshold, can reduce it is logical with containment
On the basis of the rotating speed of the condensation fan of the air-conditioning of road connection, starts and contain channel attached at least one wind turbine.
The process that is turned on and off of control module control wind turbine include control module to wind turbine send opening control signal or
Closing control signal, to be turned on and off wind turbine.The specific different types of wind turbine for different vendor's production, control module
The opening control signal and closing control signal different from of transmission, it is believed that those skilled in the art can be used according to practical
The type of wind turbine determines the opening and closing of control the type wind turbine, and this will not be repeated here.
Figure 13 is a kind of control system schematic diagram for air conditioning air flow that the utility model embodiment provides, the air conditioning air flow
Control system includes 2 layers of 1 layer of data center and data center, is all deployed with three air-conditionings per layer data center, every air-conditioning
Secondary side is entered the wind and secondary side air draft contains channel as shown, being also deployed with one in the control system of the air conditioning air flow, should
Containment channel connect with the secondary side exhaust outlet of the air-conditioning of 1 layer of data center and 2 layers of data center, and the containment channel and outside
The both ends of boundary's environment connection are connect at least one wind turbine respectively.
Since the either end being connect with external environment in the containment channel in the utility model embodiment connects wind turbine,
Promote air inlet or the air draft in containment channel.
Embodiment 5：
The phenomenon that in order to which cold-hot wind is isolated, avoids the occurrence of hot air reflux, on the basis of the various embodiments described above, this practicality is new
In type embodiment, the control system further includes：Connecting tube corresponding with every air-conditioning；It is provided with and connects on containment channel side wall
Take over corresponding third through-hole, the secondary side air inlet of the side of connecting tube and corresponding air-conditioning connects, or with corresponding air-conditioning
Secondary side exhaust outlet connection；The other side of connecting tube is connected with corresponding third through-hole on containment channel side wall.
The control system further includes：The air-valve being connected in each connecting tube.
At least one air-valve is disposed in the connecting tube that containment channel is connect with air-conditioning, it can be cold by closing air-valve isolation
Hot wind avoids the occurrence of backflow phenomenon.
Containment channel can be connected by connecting tube when being connect with air-conditioning, then contain and be provided with and connect on channel side wall
Corresponding third through-hole is managed, the side of connecting tube and the secondary side air inlet of air-conditioning connect, or the secondary side exhaust outlet with air-conditioning
Connection, the other side of connecting tube are connected with corresponding third through-hole on containment channel side wall.
Specifically, when containing that the secondary side air inlet of channel and air-conditioning connects, the side of connecting tube and air-conditioning it is secondary
Side air inlet connection, the other side of connecting tube is connected with corresponding third through-hole；When the secondary side air draft in containment channel and air-conditioning
When mouth connection, the side of connecting tube and the secondary side exhaust outlet of air-conditioning connect, the other side of connecting tube and corresponding third through-hole
Connection.
It is connected with air-valve in each connecting tube, when with containing that the unit of channel attached a certain air-conditioning is not run, control
Module closes the air-valve in corresponding connecting tube, and when the unit operation of air-conditioning, control module will be in corresponding connecting tube
Air-valve is opened, and is prevented the unit for the air-conditioning not run due to being in containment channel, is influenced by the pressure field in containment channel
The situation of existing air-flow confusion.
Figure 14 is a kind of control system schematic diagram for air conditioning air flow that the utility model embodiment provides, the air conditioning air flow
Control system includes 2 layers of 1 layer of data center and data center, is all deployed with three air-conditionings per layer data center, every air-conditioning
Secondary side is entered the wind and secondary side air draft contains channel as shown, being also deployed with one in the control system of the air conditioning air flow, should
Containment channel is connect with the secondary side exhaust outlet of the air-conditioning of 2 layers of 1 layer of data center and data center, and the containment channel and a left side
There are one air-valves for deployment respectively in the connecting tube of side (left and right as shown in figure 14) two air-conditionings.
As shown in figure 14, it is assumed that the unit of 1 layer of left side air-conditioning of data center is in off-mode and does not run, if without wind
Valve blocks the gas channel for the secondary side that it is left side air-conditioning, then the heat of right side air-conditioning discharge that may be in 1 layer of data center
Wind will blow to the intermediate air-conditioning of 1 layer of data center, and hot wind will be from the secondary side air inlet of the intermediate air-conditioning of 1 layer of data center
Discharge, the hot wind of discharge may can eject again by the secondary side air inlet discharge of the intermediate air-conditioning of 1 layer of data center
Hot wind may can be sucked by the right side air-conditioning of 1 layer of data center or the air-conditioning of 2 layers of data center again, occur hot wind again
The phenomenon that reflux, upsets the arrangement of original cold-hot wind isolation, influences the fractional energy savings of other air-conditionings.So not operating unit
Air-valve close the isolation it is ensured that cold and hot channel, the case where avoiding the occurrence of hot air reflux.
The air-valve of the unit junction deployment of the 1 layer of left side air-conditioning in the containment channel and data center is closed, the containment channel
It is opened with the air-valve of the unit junction deployment of 2 layers of data center left side air-conditioning.
Due to deploying at least one wind in the connecting tube that containment channel is connect with air-conditioning in the utility model embodiment
Valve can be isolated cold-hot wind by closing air-valve, avoid and backflow phenomenon occur.
Although the preferred embodiment of the application has been described, created once a person skilled in the art knows basic
Property concept, then additional changes and modifications can be made to these embodiments.So it includes excellent that the following claims are intended to be interpreted as
It selects embodiment and falls into all change and modification of the application range.
Obviously, those skilled in the art can carry out the utility model various modification and variations without departing from this practicality
Novel spirit and scope.If in this way, these modifications and variations of the present invention belong to the utility model claims and
Within the scope of its equivalent technologies, then the utility model is also intended to include these modifications and variations.
Claims (9)
1. a kind of control system of air conditioning air flow, including at least two layers of data center and at least two air-conditionings, per layer data center
In be deployed with an at least air-conditioning, which is characterized in that the control system further includes：The containment for being fixed on data center's outer wall is logical
Road；
The containment channel is hollow pipeline, and at least one end is connected to external environment；
The secondary side exhaust outlet of every air-conditioning is connect with the containment channel, and the secondary side air inlet of any air-conditioning and described
The distance between either end that containment channel is connected to external environment is not less than setting length；Or
The secondary side air inlet of every air-conditioning is connect with the containment channel, and the secondary side exhaust outlet of any air-conditioning and described
The distance between either end that containment channel is connected to external environment is not less than setting length.
2. control system as described in claim 1, which is characterized in that the containment channel is at least one；
The setting length is not less than the unit length of an air-conditioning.
3. control system as described in claim 1, which is characterized in that the control system further includes：Control module, the control
Molding block includes at least one sensor and control device；
The sensor is connect with the conduit wall in the containment channel, the monitor value for acquiring installation site；
The control device is connect with the sensor, for receiving the collected monitor value of the sensor, judges the prison
Whether measured value is more than the monitoring threshold set, if so, the control module controls the air quantity in the containment channel.
4. control system as claimed in claim 3, which is characterized in that the sensor includes differential pressure pickup；
The differential pressure pickup is specifically used for the pressure difference in acquisition containment channel and external environment；
Whether the control device is connect with every air-conditioning, be more than the pressure difference threshold set specifically for the pressure difference for judging to receive
Value, if so, the control module reduces the condensation fan rotating speed with the channel attached air-conditioning of containment.
5. control system as claimed in claim 3, which is characterized in that the sensor includes air velocity transducer；
The air velocity transducer is specifically used for acquiring the gas velocity angle value in the containment channel；
Whether the control device is connect with every air-conditioning, be more than the gas set specifically for the gas velocity angle value for judging to receive
Threshold speed is flowed, if so, the control module reduces the condensation fan rotating speed with the channel attached air-conditioning of containment.
6. control system as described in claim 4 or 5, which is characterized in that the control system further includes：At least one temperature
Sensor and at least one spray head, each sensor are fixed on the secondary side air inlet of air-conditioning, and each spray head is fixed on sky
On the unit of tune, and each spray head is connect with water supply line；
The temperature sensor is specifically used for the temperature value of the secondary side air inlet of acquisition air-conditioning；
The control device, be specifically used for the reduction and the channel attached air-conditioning of the containment condensation fan rotating speed it
Before, judge whether the temperature value received is more than the temperature threshold set, if so, the control module opens the spray
Head is drenched, and reduces the rotating speed with the condensation fan of the channel attached air-conditioning of containment.
7. control system as claimed in claim 6, which is characterized in that the control system further includes：At least one wind turbine；
At least one wind turbine is connected to the either end that the containment channel is connect with external environment.
8. control system as described in claim 1, which is characterized in that the control system further includes：It is corresponding with every air-conditioning
Connecting tube；It is provided with third through-hole corresponding with connecting tube, the side of connecting tube and corresponding air-conditioning on containment channel side wall
The connection of secondary side air inlet, or connected with the secondary side exhaust outlet of corresponding air-conditioning；The other side of connecting tube and containment channel
Corresponding third through-hole connection on side wall.
9. control system as claimed in claim 8, which is characterized in that the control system further includes：It is connected to each connection
Air-valve on pipe.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721606173.3U CN207649026U (en) | 2017-11-27 | 2017-11-27 | A kind of control system of air conditioning air flow |
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|---|---|---|---|
| CN201721606173.3U CN207649026U (en) | 2017-11-27 | 2017-11-27 | A kind of control system of air conditioning air flow |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112254271A (en) * | 2020-09-30 | 2021-01-22 | 青岛海尔空调器有限总公司 | Method and device for solving problem of reverse air suction of air conditioner and air conditioner |
| CN112524706A (en) * | 2020-12-08 | 2021-03-19 | 四川斯普信信息技术有限公司 | Control system and method for noise reduction and precooling of air-cooled air conditioner external unit and application |
-
2017
- 2017-11-27 CN CN201721606173.3U patent/CN207649026U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112254271A (en) * | 2020-09-30 | 2021-01-22 | 青岛海尔空调器有限总公司 | Method and device for solving problem of reverse air suction of air conditioner and air conditioner |
| CN112254271B (en) * | 2020-09-30 | 2022-01-21 | 青岛海尔空调器有限总公司 | Method and device for solving problem of reverse air suction of air conditioner and air conditioner |
| CN112524706A (en) * | 2020-12-08 | 2021-03-19 | 四川斯普信信息技术有限公司 | Control system and method for noise reduction and precooling of air-cooled air conditioner external unit and application |
| CN112524706B (en) * | 2020-12-08 | 2021-12-03 | 四川斯普信信息技术有限公司 | Control system and method for noise reduction and precooling of air-cooled air conditioner external unit and application |
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