CN109869886A - A kind of energy-saving air-conditioning orientation air supply device based on rotating jet - Google Patents
A kind of energy-saving air-conditioning orientation air supply device based on rotating jet Download PDFInfo
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Abstract
The invention discloses a kind of, and the energy-saving air-conditioning based on rotating jet orients air supply device, including main ventilation cavity, whirlwind generator, annular rectification cellular board and the multidirectional biform air-supply plate of three-level；Whirlwind generator includes whirlwind generator shell cavity, motor support frame, dc motor and spiral rotating body；Annular rectification cellular board is sleeved on whirlwind generator shell cavity, and is located at main ventilation inside cavity；Three-level multidirectional biform air-supply plate include plate shell, level-one be circular layout orient convergent nozzle group, second level is circular layout and orients convergent nozzle group and whirlwind air outlet；Plate shell includes bottom case and shell；The upper end of bottom case is mounted on the lower end of main ventilation cavity；Shell is coaxially connected with bottom case；Whirlwind air outlet is connected to the lower end of whirlwind generator shell cavity；The present invention realizes air-supply region, personalized, realizes in the identical situation of fixed point place required airflow, the effect that ventilation quantity substantially reduces reaches energy-saving and emission-reduction purpose.
Description
Technical field
The invention belongs to Heating, Ventilation and Air Conditioning (HVAC) Technology air-conditioning equipment fields, and in particular to a kind of energy-saving air-conditioning based on rotating jet is fixed
To air supply device.
Background technique
With science and technology and economic rapid development, requirement of the people for life at present has been not limited to simple clothing ,food and housing
Row.For living environment, people have higher requirement.Building energy conservation and comfortableization have no unexpectedly to become people couple
The requirements at the higher level of living environment.
In today's society, building energy consumption accounts for about the 1/3 of national total energy consumption.Heating,Ventilating and Air Conditioning energy consumption is big in building energy consumption
Family, Heating,Ventilating and Air Conditioning energy consumption accounts for the 65% of building energy consumption in developed country according to statistics, is accounted in terms of the 356% of total energy consumption by building energy consumption
It calculates, the ratio that Heating,Ventilating and Air Conditioning energy consumption accounts for total energy consumption is up to 22.75%, it can be seen that the emphasis of Building Energy-saving Work should be HVAC
The energy conservation of air-conditioning.
Therefore, existing air-conditioning is transformed very urgent.Most of air-conditioning on the market is plane formula blow-through wind at present,
This wind is difficult to maintain energy, easily dissipates, and cannot achieve indoor orientation air-supply, cannot achieve air-supply region, therefore will increase
The energy consumption of air-conditioning.
Therefore, a kind of air supply device that can overcome the above problem is needed in the prior art.
Summary of the invention
To realize the present invention purpose and the technical solution adopted is that a kind of such, energy-saving air-conditioning based on rotating jet
Orient air supply device, it is characterised in that: multidirectional double including main ventilation cavity, whirlwind generator, annular rectification cellular board and three-level
Form air-supply plate.
The main ventilation cavity is cylindrical shape, and the upper end is air inlet, which connects air-conditioning, and lower end is outlet air
Mouthful.
The whirlwind generator includes whirlwind generator shell cavity, motor support frame, dc motor and spiral shape
Rotary body.
The whirlwind generator shell cavity is cylindrical shape.The whirlwind generator shell cavity is located at the main ventilation chamber
In vivo, the upper end is equal with the upper end of the main ventilation cavity, and lower end is pierced by out of described main ventilation cavity.
The motor support frame is mounted on the inner wall of the whirlwind generator shell cavity.
The dc motor is mounted on the motor support frame.
The spiral rotating body is mounted on the output shaft of the dc motor.
The annular rectification cellular board is sleeved on the whirlwind generator shell cavity, and is located at the main ventilation cavity
It is internal.
The multidirectional biform air-supply plate of the three-level includes that plate shell, level-one are circular layout and orient convergent nozzle group, two
Grade, which is circular layout, orients convergent nozzle group and whirlwind air outlet.
The plate shell includes bottom case and shell.
The bottom case is cylindrical shell, and upper and lower side is open, is wherein equipped with annular flange I in the opening of lower end.
The upper end of the bottom case is mounted on the lower end of the main ventilation cavity.
The shell is cylindrical the shell, upper and lower side is open, is wherein equipped with annular flange II in the opening of lower end.
The shell and the bottom case are coaxially connected, and wherein the upper end of shell is fixed in the annular flange I of the bottom case
Wall.
The whirlwind air outlet is hollow cylinder.The whirlwind air outlet is mounted in the annular flange II of the shell
Wall.
The whirlwind air outlet is connected to the lower end of the whirlwind generator shell cavity.
It includes several orientations convergent nozzle I that the level-one, which is circular layout and orients convergent nozzle group,.
Several described orientation convergent nozzle I are circumferentially evenly arranged on the annular flange I, and respectively with annular flange I
Surface arranges that each orientation convergent nozzle I is connected with bottom shell at the elevation angle.
It includes several orientations convergent nozzle II that the second level, which is circular layout and orients convergent nozzle group,.
Several described orientation convergent nozzle I are circumferentially evenly arranged on the annular flange I, in the annular flange I table
Face is scattered at elevation angle shape, each orientation convergent nozzle I is connected with bottom shell.
It includes several orientations convergent nozzle II that the second level, which is circular layout and orients convergent nozzle group,.
Several described orientation convergent nozzle II are circumferentially evenly arranged on the annular flange II, in the annular flange II
Surface is scattered at elevation angle shape, each orientation convergent nozzle II is connected with interior of shell.
When air-conditioner wind is blown into from the air inlet of the main ventilation cavity, air-conditioner wind is divided into two parts.A part of wind warp
The annular rectification cellular board rectification is crossed, the wind after rectification is circular layout into the level-one orients convergent nozzle group and two-stage ring
Shape arrangement orientation convergent nozzle group, finally sends out from orientation convergent nozzle I and orientation convergent nozzle II orientation.Another part wind warp
The whirlwind generator shell cavity is crossed, drives the spiral rotating body to rotate by dc motor rotation, generates
It is sent out after rotary wind from the whirlwind air outlet.
Further, the main ventilation cavity includes the left outside shell of main ventilation cavity and main ventilation cavity right casing.
The main ventilation cavity is spliced by the left outside shell of the main ventilation cavity and main ventilation cavity right casing.
Further, it is described orientation convergent nozzle I and the annular flange I junction and the orientation convergent nozzle II and
The junction of the annular flange II is provided with sealing ring.
Further, the outside of the multidirectional biform air-supply plate of the three-level is equipped with temperature sensor.
Switch is mounted on the orientation convergent nozzle I and orientation convergent nozzle II.The switch connection automatically controls
System.The temperature sensor exports temperature signal to automatic control system, and automatic control system is opened by automatically controlling change
Close with the contact area of nozzle and then complete the adjusting of air output.
Further, the switch is piece type spout opening and closing device.
Further, the top surface of the annular flange I is denoted as the face H.The top surface of the annular flange II is denoted as the face L.
Two orientation convergent nozzle II of each orientation convergent nozzle I and its most proximity are denoted as one group.By institute
The intersection point of the axis and the face H of stating orientation convergent nozzle I is denoted as intersection I, the axis of two neighboring orientation convergent nozzle II and the face L
Intersection point is denoted as intersection I I and intersection I II respectively.The perpendicular bisector of the intersection I I and intersection I II line are denoted as vertical line I, it should
Projection of the vertical line I in the face H is denoted as vertical line II.The vertical line II passes through the intersection I.
Further, the dc motor is driven by the switch that single-chip microcontroller controls electromagnetic relay.
The solution have the advantages that unquestionable, it has the advantages that
1) present invention is combined by both the blow-through wind for being sprayed whirlwind and the tapered spout of orientation, realizes air-supply region
Change, it is personalized, the shortcomings that tradition is blown is optimized, is realized in the identical situation of fixed point place required airflow, ventilation quantity significantly subtracts
Few effect reaches energy-saving and emission-reduction purpose, while human comfort in air-conditioned room increased, so that air borne is more
Added with effect.
2) present invention can adapt to different environmental demands, can household can also be used for commercial plant etc..
3) air-conditioner air outlet of the invention can be sent by the wind pushing form of change air outlet when interior does not need the total space
It can allow sensing device when wind and realize fixed point air-supply, compared to traditional air outlet, guaranteeing that indoor occupant requires constant situation
Under, fixed point orientation air-supply can effectively reduce air output, to achieve energy-saving and emission reduction purposes.User can be by present information
Technology realizes air feed compartmentalization by effective air-out area of adjusting air outlet, personalized.Reducing unnecessary volume of air supply
Increase human comfort again simultaneously.
4) it has the advantages of simple structure and easy realization, it is easy to install and use.
Detailed description of the invention
Fig. 1 is oblique cross-sectional view of the invention；
Fig. 2 is full sectional view of the invention；
Fig. 3 is the structural schematic diagram of whirlwind generator；
Fig. 4 is structural representation Fig. 1 of the multidirectional biform air-supply plate of three-level；
Fig. 5 is structural representation Fig. 2 of the multidirectional biform air-supply plate of three-level；
Fig. 6 is floor map of the invention；
Fig. 7 is the scheme of installation of annular rectification cellular board；
Fig. 8 is the arrangement schematic diagram of whirlwind generator；
Fig. 9 is the angle arrangement labeled graph for orienting convergent nozzle group；
Figure 10 is the coordinate schematic diagram for orienting convergent nozzle group；
Figure 11 is orientation convergent nozzle angle list figure；
Figure 12 is the model schematic 1 of calculating process；
Figure 13 is the model schematic 2 of calculating process；
Variation diagram of the jet stream nondimensional mass flow along the jet stream longitudinal axis that Figure 14 is rotating jet difference Ω；
Figure 15 is the model schematic 3 of calculating process；
Figure 16 is the model schematic 4 of calculating process.
In figure: the left outside shell 11 of main ventilation cavity 1, main ventilation cavity, main ventilation cavity right casing 12, whirlwind generator 2, rotation
Air generator shell cavity 21, motor support frame 22, dc motor 23, spiral rotating body 24, annular rectification cellular board
3, three-level multidirectional biform air-supply plate 4, plate shell 41, bottom case 411, annular flange I4111, shell 412, annular flange
II4121, level-one are circular layout and orient convergent nozzle group 42, orientation convergent nozzle I421, second level are circular layout and orient convergent nozzle
Group 43, orientation convergent nozzle II431, whirlwind air outlet 44 and switch 5.
Specific embodiment
Below with reference to embodiment, the invention will be further described, but should not be construed the above-mentioned subject area of the present invention only
It is limited to following embodiments.Without departing from the idea case in the present invention described above, according to ordinary skill knowledge and used
With means, various replacements and change are made, should all include within the scope of the present invention.
Embodiment 1:
Referring to Fig. 1 to Fig. 7, a kind of energy-saving air-conditioning orientation air supply device based on rotating jet, including main ventilation cavity
1, whirlwind generator 2, annular rectification cellular board 3 and the multidirectional biform air-supply plate 4 of three-level.
The main ventilation cavity 1 includes the left outside shell 11 of main ventilation cavity and main ventilation cavity right casing 12.
The main ventilation cavity 1 is spliced by the left outside shell 11 of the main ventilation cavity and main ventilation cavity right casing 12
At cylinder, the upper end is air inlet, the air inlet connect air-conditioning, lower end be air outlet.
The whirlwind generator 2 includes whirlwind generator shell cavity 21, motor support frame 22,23 and of dc motor
Spiral rotating body 24.
The whirlwind generator shell cavity 21 is cylindrical shape.It is logical that the whirlwind generator shell cavity 21 is located at the master
In wind cavity 1, the upper end is equal with the upper end of the main ventilation cavity 1, and lower end is pierced by out of described main ventilation cavity 1.
The motor support frame 22 is mounted on the inner wall of the whirlwind generator shell cavity 21 by welding
On.
The dc motor 23 is mounted on the motor support frame 22.
The spiral rotating body 24 is mounted on the output shaft of the dc motor 23.
The annular rectification cellular board 3 is sleeved on the whirlwind generator shell cavity 21, and is located at the main ventilation
Inside cavity 1.
The multidirectional biform air-supply plate 4 of three-level is circular layout including plate shell 41, level-one and orients convergent nozzle group
42, second level, which is circular layout, orients convergent nozzle group 43 and whirlwind air outlet 44.
The plate shell 41 includes bottom case 411 and shell 412.
The bottom case 411 is cylindrical shell, and upper and lower side is open, is wherein equipped with annular flange in the opening of lower end
I4111。
The upper end of the bottom case 411 is by being hingedly mounted on the lower end of the main ventilation cavity 1.
The shell 412 is cylindrical shell, and upper and lower side is open, is wherein equipped with annular flange in the opening of lower end
II4121。
The shell 412 and the bottom case 411 are coaxially connected, and wherein the upper end of shell 412 is fixed on the bottom case 411
Annular flange I4111 inner wall.
The whirlwind air outlet 44 is hollow cylinder.The whirlwind air outlet 44 is mounted on the annulus of the shell 412
Flange II4121 inner wall.
The whirlwind air outlet 44 is connected to the lower end of the whirlwind generator shell cavity 21, is sealed by sealing ring
It is good.
It includes several orientations convergent nozzle I421 that the level-one, which is circular layout and orients convergent nozzle group 42, in this implementation,
The quantity for orienting convergent nozzle I421 is eight.
Eight orientation convergent nozzle I421 are circumferentially evenly arranged on the annular flange I4111, convex in the annulus
The surface edge I4111 is scattered at elevation angle shape, each orientation convergent nozzle I421 with 411 internal switching of bottom case.
It includes several orientations convergent nozzle II431 that the second level, which is circular layout and orients convergent nozzle group 43, in this implementation,
The quantity for orienting convergent nozzle II431 is eight.
Eight orientation convergent nozzle II431 are circumferentially evenly arranged on the annular flange II4121, in the annulus
The surface flange II4121 is scattered at elevation angle shape, each orientation convergent nozzle II431 with 412 internal switching of shell.
Referring to Fig. 8, the top surface of the annular flange I4111 is denoted as the face H.The top surface of the annular flange II4121 is remembered
For the face L.
Two orientation convergent nozzle II431 of each orientation convergent nozzle I421 and its most proximity are denoted as one
Group.The intersection point of the axis of the orientation convergent nozzle I421 and the face H is denoted as intersection I, two neighboring orientation convergent nozzle II431
Axis and the intersection point in the face L be denoted as intersection I I and intersection I II respectively.The intersection I I and the vertical of intersection I II line are divided equally
Line is denoted as vertical line I, and projection of the vertical line I in the face H is denoted as vertical line II.The vertical line II passes through the intersection I.
When air-conditioner wind is blown into from the air inlet of the main ventilation cavity 1, air-conditioner wind is divided into two parts.A part of wind warp
It crosses the annular rectification cellular board 3 to rectify, the wind after rectification is circular layout into the level-one and orients determining for convergent nozzle group 42
It is circular layout to convergent nozzle I421 and second level and orients the orientation convergent nozzle II431 orientation submitting of convergent nozzle group 43, realize
Stronger direction propagation allows air-flow to propagate farther, has higher propagation accuracy.Another part wind occurs by the whirlwind
Device shell cavity 21 drives the spiral rotating body 24 to rotate, after generating rotary wind by the dc motor 23 rotation
It is sent out from the whirlwind air outlet 44.
The outside of the multidirectional biform air-supply plate 4 of three-level is equipped with temperature sensor.
Switch 5, the present embodiment switch 5 are mounted on the orientation convergent nozzle I421 and orientation convergent nozzle II431
For piece type spout opening and closing device.Described type spout opening and closing device connection automatically controls system.The temperature sensor believes temperature
To automatic control system, automatic control system receives output control instruction after signal and automatically controls change piece type spout to open for number output
It closes the contact area of device and nozzle and then completes the adjusting of air output, to realize three kinds of air supply patterns: full-space mode, a
Property mode and region air supply pattern.
Full-space mode: when selecting this mode, piece type spout opening and closing device is all opened wide, and whole air outlet collectives send
Wind realizes total space covering.
Customizing mode: according to indoor occupant demand, the folding of air outlet is controlled by piece type spout opening and closing device, to institute
Demand space is oriented air-supply.
Region air supply pattern: level-one, which is circular layout, orients convergent nozzle group 42 and second level is circular layout and orients convergent nozzle
Group 43 is divided into eight plates according to 45 °, can be blown according to the requirement of the interior space to the space.
It is worth noting that the difference of customizing mode and region air supply pattern is, customizing mode, when indoor appearance
When personnel walk about, by the whereabouts of the traceable personnel of temperature sensor under setting infrared ray sensing technical support, to change
The opening and closing of air outlet, and region air supply pattern, can only blow to directional space.
Preferably, the junction of the orientation convergent nozzle I421 and annular flange I4111 and the orientation are tapered
The junction of the jet pipe II431 and annular flange II4121 is provided with sealing ring, and main purpose is anti-locking apparatus in reality
Air leakage phenomena in operational process.
Preferably, the dc motor 23 is driven by the switch that single-chip microcontroller controls electromagnetic relay.
Embodiment 2:
The present embodiment primary structure with embodiment 1, specific data to the three-level multidirectional biform air-supply plate 4 and
Correlation formula calculating is described further.
Gas stitches injection outward from aperture, ozzle or item and is formed by flowing, referred to as gas jet.Since jet stream is turbulent flow
Type, turbulent lateral pulsation cause that quality, momentum-exchange constantly occur between jet stream and surrounding medium, drive surrounding medium stream
It is dynamic, so that the area of section of the mass flow of jet stream, jet stream is continuously increased along direction, form the cone-shaped stream spread to surrounding
Dynamic field.
If the radius of circle cross section jet area is R, it is directly proportional with the distance started from pole,
R=kx (formula one).
From jet stream knowledge
The turbulence factor a of the known nozzle with contraction mouth is 0.071, and 2 α of angle of flare is 27 ° 10 ', with wind deflector
The turbulence factor a of axial ventilator is 0.12, and 2 α of angle of flare is 44 ° 30 '.A value determines that the outside boundary line of jet boundary layer is just
It determines, jet stream travels forward according to certain diffusion angle.Using this feature, jet radius edge is found out to circle cross section jet stream and is penetrated
The changing rule of journey, has:
According to the measurement result of A Bola Abramovich:
Had by semiempirical formula:
It can be obtained in conjunction with above-mentioned formula:
For formula one into Chinese style seven, X is distance of the section to pole, and k is experiment coefficient, and α is angle of flare, and a is turbulence factor,
Indicate the characteristic coefficient of jet flow structure, r0For outlet air port radius, s is axial line distance of the air outlet to fixed point,For from pole
The zero dimension distance of start of calculation, y are arbitrary point to axle center distance on cross section, and R is jet radius on the section, and V is speed on y point
Degree, v0For core speed, vm is the sectional axis speed.
It is worth noting that discussing two kinds of models in the present embodiment, and to two kinds of models in two kinds of different air outlet works
Make the across comparison that amount of energy saving is carried out under state.
The first model is constructed under the same conditions, it is assumed that needs to be area at wind to be 1m2Border circular areas S, radius R1=
0.56m.Referring to Figure 11, three-dimensional space rectangular coordinate system is established, and determines origin (0,0,0) coordinate as illustrated.
If needing the central coordinate of circle of wind border circular areas S is P (0.0m, 1.8m, 3.0m).
Setting out air port central coordinate of circle is M (5.4m, 1.8m, 3.0m).
1) referring to Figure 13, radius r0With contraction mouth nozzle orientation air-supply (turbulence factor a be 0.071, angle of flare
2 α are 27 ° 10 ').
So:
Formula eight is into formula 11, QvIt is 1m to need area at wind2Border circular areas S flow, Qv0It is r for radius0Have
The nozzle air outlet flow of contraction mouth, d0For air outlet diameter,For P point to M point distance, a1It is r for radius0With receive
The nozzle air outlet turbulence factor of necking.
2) referring to Figure 12, radius 4r0The axial ventilator blow-through air-supply with wind deflector (turbulence factor a is
0.12,2 α of angle of flare are 44 ° 30 ').
It is approximately 22.5 ° for diffusion angle to analyze, by R=2.24m known to geometric knowledge according to formula eight,
So:
As Q 'v0=Qv0,
12 formulas are into formula 15, a2For the turbulence factor of the axial ventilator with wind deflector, Q 'vTo need to be at wind
Area is 1m2Border circular areas S flow, Q 'v0It is 4r for radius0The axial ventilator air outlet stream with wind deflector
Amount, QvThe gas flow of wind border circular areas S, Q are needed when orienting air feed for single jet pipev0Wind circle is needed when orienting air feed for single jet pipe
The gas flow of shape region S is QvWhen air outlet gas flow.
Estimation and Measurement domestic air conditioning air outlet is 70cm*8cm, and homalographic is reduced to border circular areas, radius r=13cm,
That is d0=0.26m.
So:
By data it is found that guaranteeing that need wind be area is 1m2Border circular areas S flow it is equal under conditions of, compared to
Radius is 4r0With wind deflector axial ventilator blow-through air-supply, use radius for r0With contraction mouth nozzle orientation
Air-supply energy conservation 72.67%.
Second model is constructed under the same conditions, it is assumed that needs to be four areas at wind to be 1m2Border circular areas S, radius
R1=0.56m.Referring to Figure 11, Figure 15 and Figure 16, establish three-dimensional space rectangular coordinate system, and as illustrated determine origin (0,0,
0) coordinate.
If four need the central coordinate of circle of wind border circular areas S to be respectively as follows: A1 (0.6m, 0.3m, 2.0m), A2 (0.6m, 2.2m,
1.0m), A3 (4.1m, 0.3m, 2.0m), A4 (4.1m, 2.2m, 1.0m).
Setting out air port central coordinate of circle is (5.4m, 1.8m, 3.0m).
1) four radiuses are r0The nozzle orientation air-supply with contraction mouth (turbulence factor a is 0.071, and 2 α of angle of flare is
27°10′)。
So the sum of four nozzle exit air quantity are as follows:
Formula 16 into formula 17,For A, B, C, tetra- areas of D are 1m2The center of circle border circular areas S (A1, A2, A3,
A4 the distance of air outlet, Q) are arrivedvTo need to be area at wind to be 1m2Border circular areas S flow, Qv0A, Qv0B, Qv0C, Qv0DRespectively
Four areas are 1m2Border circular areas S flow, QV0 is totalIt is r for radius0The nozzle air outlet total flow with contraction mouth.
2) radius is 4r0With wind deflector axial ventilator blow-through air-supply (turbulence factor a be 0.12, angle of flare 2
α is 44 ° 30 ').
Four border circular areas known to angle analysis can not all be covered in the case where orienting outlet air state, but can achieve the area A, B
Wind is given in domain simultaneously, and wind is given simultaneously in the region C, D.Therefore carry out approximate processing.
Analyze A, B area, referring to front view 15, take A, B border circular areas midpoint O (0.65m, 1.25m, 1.5m), MO and
The distance of AB is
So A is sent to while met at M, it is S that B area, which needs the section at wind, and S diameter is Ds=AB+0.56*2=
3.26m。
So meeting A, B area flow reaches demand QvWhen, air-out flow is
The region C, D is analyzed, referring to front view 16, the distance of CD is
C, D border circular areas midpoint N (4.1m, 1.25m, 1.5m) are taken, so C is sent to while met at M, the region D is needed at wind
Section be P, the distance of P diameter and MN are
DP=CD+0.56*2=3.27m,
It obtains
So that jet stream is penetrated less than in the range of C, D two o'clock radius 0.56m, therefore C, D are individually calculated,
C point:
D point:
Formula 19 is into formula 20, QABFor A, B two the sum of the flows needed at wind, QC,QDThe flow at wind, Q are needed for C, D1
It is 4r for radius0The axial ventilator air outlet flow with wind deflector,For o point to M point distance,For C point
To M point distance,For D point to M point distance.
To sum up whole calculating process of second model, four jet pipe wind outlet flows: known d0=0.065m is then
Radius is 4r0The axial ventilator wind outlet flow with wind deflector: known d '0=0.26m is then
By data it is found that guaranteeing 4 to need wind being area to be 1m2Border circular areas S flow it is equal under conditions of, compare
In radius be 4r0With wind deflector axial ventilator blow-through air-supply, use radius for r0The nozzle with contraction mouth it is fixed
To air-supply energy conservation 8.67%.
In conclusion traditional wind pushing form cannot achieve compartmentalization.If only one indoor region or several regions need
Air-supply, traditional air conditioner can only improve device and compartmentalization orientation air-supply may be implemented to entire indoor air-supply, to save remaining
It is not required to the air output of air-supply region, reaches energy-saving effect.By taking four people's dormitories as an example, under four people's dormitory models, only one is sent
Wind, improvement air-out mode through known to calculating compared to traditional air supply mode amount of energy saving up to 72.67%.To in different location
When four people blow, improvement air-out mode through known to calculating compared to traditional air supply mode amount of energy saving up to 8.66%.
It is spreaded to by single oriented nozzle to a second level and orients convergent nozzle group, jet pipe group arrangement is as shown in Figure 9.With jet pipe group institute
Premised on the air-flow of ejection can cover room, corresponding jet pipe angle is calculated, referring to Figure 10 to Figure 11.
Rotating jet is essentially characterized in that rotation, and rotation is so that jet stream obtains the centrifugal force spread around.With it is general
Jet stream compares, and angle of flare is much bigger, range much shorter.The turbulent fluctuation of jet stream is much better than, if two times of angles of flare of general jet stream
It is 28 °, then rotating jet can reach 90 ° or more.The momentum-exchange being greatly promoted between jet stream and surrounding medium in this way, heat
Amount exchange and concentration exchange.
By rotating jet along axis nondimensional mass flow empirical equation:
In formula 21 and formula 22, QVFor along section flow, Q where jet stream longitudinal axis xV0For on spout outlet section
Flow, x are jet axis direction distance, and d is cyclone outlet cross section diameter, L0When entering cyclone for fluid, relative to rotation
The moment of momentum of shaft, K0For the mean momentum on cyclone outlet section, Ω is spin intensity.
Modified-image of the jet stream nondimensional mass flow along the jet stream longitudinal axis for making different Ω, referring to Figure 14, it is known that Ω value is bigger,
The ability that rotating jet volume inhales surrounding medium is stronger, especially existsWithin range,Growth rate is especially fast.
The feature of above-mentioned rotating jet can be well solved since the diffusion angle of convergent nozzle is small, cause closely to supply
The problem of wind deficiency.By adjusting the revolving speed of dc motor, and then change the Ω of cyclone, and can accomplish to adjust rotary wind
Flow.Compared to conventional jet, the momentum-exchange of rotating jet and surrounding medium, heat exchange and concentration exchange efficiency are significantly
Increase, reaches effects of energy saving and emission reduction.
Claims (7)
1. a kind of energy-saving air-conditioning based on rotating jet orients air supply device, it is characterised in that: including the main ventilation cavity
(1), whirlwind generator (2), annular rectification cellular board (3) and multidirectional biform air-supply plate (4) of three-level；
The main ventilation cavity (1) is cylindrical shape, and the upper end is air inlet, which connects air-conditioning, and lower end is air outlet；
The whirlwind generator (2) includes whirlwind generator shell cavity (21), motor support frame (22), dc motor
(23) and spiral rotating body (24)；
The whirlwind generator shell cavity (21) is cylindrical shape；It is logical that the whirlwind generator shell cavity (21) is located at the master
In wind cavity (1), the upper end is equal with the upper end of the main ventilation cavity (1), and lower end is worn out of described main ventilation cavity (1)
Out；
The motor support frame (22) is mounted on the inner wall of the whirlwind generator shell cavity (21)；
The dc motor (23) is mounted on the motor support frame (22)；
The spiral rotating body (24) is mounted on the output shaft of the dc motor (23)；
Annular rectification cellular board (3) is sleeved on the whirlwind generator shell cavity (21), and is located at the main ventilation
Cavity (1) is internal；
Multidirectional biform air-supply plate (4) of the three-level includes that plate shell (41), level-one are circular layout and orient convergent nozzle group
(42), second level, which is circular layout, orients convergent nozzle group (43) and whirlwind air outlet (44)；
The plate shell (41) includes bottom case (411) and shell (412)；
The bottom case (411) is cylindrical shell, and upper and lower side is open, is wherein equipped with annular flange I in the opening of lower end
(4111)；
The upper end of the bottom case (411) is mounted on the lower end of the main ventilation cavity (1)；
The shell (412) is cylindrical shell, and upper and lower side is open, is wherein equipped with annular flange II in the opening of lower end
(4121)；
The shell (412) and the bottom case (411) are coaxially connected, and wherein the upper end of shell (412) is fixed on the bottom case
(411) annular flange I (4111) inner wall；
The whirlwind air outlet (44) is hollow cylinder；The whirlwind air outlet (44) is mounted on the circle of the shell (412)
Ring flange II (4121) inner wall；
The whirlwind air outlet (44) is connected to the lower end of the whirlwind generator shell cavity (21)；
It includes several orientations convergent nozzle I (421) that the level-one, which is circular layout and orients convergent nozzle group (42),；
Several described orientation convergent nozzle I (421) are circumferentially evenly arranged on the annular flange I (4111), in the annulus
Flange I scatters on (4111) surface at elevation angle shape, each orientation convergent nozzle I (421) with bottom case (411) internal switching；
It includes several orientations convergent nozzle II (431) that the second level, which is circular layout and orients convergent nozzle group (43),；
Several described orientation convergent nozzle II (431) are circumferentially evenly arranged on the annular flange II (4121), in the circle
Ring flange II scatters on (4121) surface at elevation angle shape, each orientation convergent nozzle II (431) connects with shell (412) inside
It is logical.
When air-conditioner wind is blown into from the air inlet of the main ventilation cavity (1), air-conditioner wind is divided into two parts；A part of wind passes through
Annular rectification cellular board (3) rectification, wind after rectification enter the level-one be circular layout orient convergent nozzle group (42) and
Second level, which is circular layout, orients convergent nozzle group (43), finally from orientation convergent nozzle I (421) and orientation convergent nozzle II (431)
Orientation is sent out；Another part wind passes through the whirlwind generator shell cavity (21), is rotated by the dc motor (23)
It drives the spiral rotating body (24) to rotate, is sent out after generating rotary wind from the whirlwind air outlet (44).
2. a kind of energy-saving air-conditioning based on rotating jet according to claim 2 orients air supply device, it is characterised in that:
The main ventilation cavity (1) includes the left outside shell of main ventilation cavity (11) and main ventilation cavity right casing (12)；
The main ventilation cavity (1) is spliced by the left outside shell of main ventilation cavity (11) and main ventilation cavity right casing (12)
At.
3. a kind of energy-saving air-conditioning based on rotating jet according to claim 1 orients air supply device, it is characterised in that:
The junction and the orientation convergent nozzle II (431) of orientation convergent nozzle I (421) and the annular flange I (4111)
Sealing ring is provided with the junction of the annular flange II (4121).
4. a kind of energy-saving air-conditioning based on rotating jet according to claim 1 orients air supply device, it is characterised in that:
The outside of multidirectional biform air-supply plate (4) of three-level is equipped with temperature sensor；
Switch (5) are mounted in the orientation convergent nozzle I (421) and orientation convergent nozzle II (431)；The switch (5)
Connection automatically controls system；The temperature sensor exports temperature signal to automatic control system, and automatic control system passes through certainly
The contact area of dynamic control change switch (5) and nozzle and then the adjusting for completing air output.
5. a kind of energy-saving air-conditioning based on rotating jet according to claim 4 orients air supply device, it is characterised in that:
The switch (5) is piece type spout opening and closing device.
6. a kind of energy-saving air-conditioning based on rotating jet according to claim 1 orients air supply device, it is characterised in that:
The top surface of the annular flange I (4111) is denoted as the face H；The top surface of the annular flange II (4121) is denoted as the face L；
Two orientation convergent nozzle II (431) of each orientation convergent nozzle I (421) and its most proximity are denoted as one
Group；The intersection point of the axis of orientation convergent nozzle I (421) and the face H is denoted as intersection I, two neighboring orientation convergent nozzle II
(431) intersection point of axis and the face L is denoted as intersection I I and intersection I II respectively；By the vertical of the intersection I I and intersection I II line
Bisector is denoted as vertical line I, and projection of the vertical line I in the face H is denoted as vertical line II；The vertical line II passes through the intersection I.
7. a kind of energy-saving air-conditioning based on rotating jet according to claim 1 orients air supply device, it is characterised in that:
The dc motor (23) is driven by the switch that single-chip microcontroller controls electromagnetic relay.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910247188.2A CN109869886B (en) | 2019-03-29 | 2019-03-29 | Directional air supply arrangement of energy-conserving air conditioner based on rotatory efflux |
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|---|---|---|---|
| CN201910247188.2A CN109869886B (en) | 2019-03-29 | 2019-03-29 | Directional air supply arrangement of energy-conserving air conditioner based on rotatory efflux |
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| CN109869886B CN109869886B (en) | 2020-09-15 |
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|---|---|---|---|
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113465091A (en) * | 2021-08-06 | 2021-10-01 | 西安建筑科技大学 | Columnar cyclone type humidifying and oxygen increasing device in low-pressure environment |
| CN114303923A (en) * | 2022-01-06 | 2022-04-12 | 福建省中科生物股份有限公司 | Slot jet heat dissipation device of plant factory and matched cultivation frame |
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| Publication number | Publication date |
|---|---|
| CN109869886B (en) | 2020-09-15 |
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