CN207961047U - A kind of wind turbine of Wind Volume low-power consumption - Google Patents
A kind of wind turbine of Wind Volume low-power consumption Download PDFInfo
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- CN207961047U CN207961047U CN201820326000.4U CN201820326000U CN207961047U CN 207961047 U CN207961047 U CN 207961047U CN 201820326000 U CN201820326000 U CN 201820326000U CN 207961047 U CN207961047 U CN 207961047U
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- 238000005452 bending Methods 0.000 claims abstract description 8
- 239000007789 gas Substances 0.000 claims description 27
- 230000036651 mood Effects 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 230000005611 electricity Effects 0.000 claims 1
- 238000004378 air conditioning Methods 0.000 abstract description 15
- 238000009423 ventilation Methods 0.000 description 14
- 238000005265 energy consumption Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 6
- 230000003247 decreasing effect Effects 0.000 description 4
- 239000003507 refrigerant Substances 0.000 description 4
- 230000007423 decrease Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 241000784732 Lycaena phlaeas Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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Abstract
The utility model is related to a kind of wind turbines of Wind Volume low-power consumption：Gas-powered component in wind turbine or to be formed in the fan blade of the round and smooth bending of length direction, or by the fan blade of axial flow blower and the wind wheel of centrifugal blower.The curved surface outlet air surface of revolution shape is constituted when gas-powered component rotates, the curved surface air-out area of wind turbine is more than the air-out area of the axial flow blower with diameter.The outlet air of wind turbine is in addition to the component axially flowed, the also component of Radial Flow.In addition to shaft core position, other outlet air air velocities everywhere are essentially identical.It is big with air-out area, the characteristics of outlet air wind speed is small, and air-out volume is big, wind turbine small power consumption.The utility model can make draft fan energy saving 30% 90%, and reduce noise；It can effectively reduce the condenser of air-conditioning heat pump, the air inlet/outlet temperature difference of evaporator, improve COP 10% 25%.
Description
Technical field
The utility model is related to a kind of wind turbines of Wind Volume low-power consumption, belong to ventilation, air-conditioning, refrigeration, art of heat pumps.
Background technology
In ventilation, air-conditioning, refrigeration, art of heat pumps, need to make gas flowing, the air for making flowing and refrigerant hand over by wind turbine
Heat exchange amount.Using wind turbine power consumption as small as possible, the air quantity for reaching as big as possible is the target pursued in industry.
In air-conditioning heat pump field, the air quantity of wind turbine counts for much to the COP of system.Outdoor heat exchange such as under standard condition
In device, the air inlet/outlet temperature difference is generally at 10 DEG C or more, if air quantity can be made to increase by 50%, the air inlet/outlet temperature difference substantially reduces 30%,
System refrigerant high-low temperature difference is set to decline 3 DEG C or more, under the premise of not considering wind turbine power consumption, system COP increases by 15% or more.
In existing conventional air-conditioning and air source heat pump system, outdoor unit generally installs axial flow blower, the power of wind turbine
Fan blade radius for the 5%-10% of compressor horsepower, axial flow blower is limited by the size of equipment, and the outlet air open area of wind turbine is not
Can arbitrarily it expand.Under the premise of wind turbine outlet air cross-sectional area is constant, if it is desired that outdoor unit heat exchanger air quantity increases to 2 times,
Then outlet air wind speed also must be added to 2 times, and the kinetic energy of the per kilogram air of outlet air air-flow can increase to original 4 times, flow simultaneously
Original 4 times can also be increased to by crossing the per kilogram air drag of outdoor unit heat exchanger, may require that the power of wind turbine increases in this way
Originally 8 times of power, this, which allows for power of fan, increases to the 40%-80% of compressor horsepower.Energy consumption of compressor in this way subtracts
Few value<<The total energy consumption of the value added of fan energy consumption, system is increased, it is clear that is lost more than gain.So existing air-conditioning and
The structure of heat pump system, wind turbine limits the raising of air quantity, and the air inlet/outlet temperature difference of outdoor unit heat exchanger is made to be limited to higher number
In value, generally more than 10 DEG C.Also there is similar phenomenon on many indoor set heat exchangers.
It is analyzed from another angle, in air-conditioning and heat pump system, when air draught leaves two devices (condenser and evaporator),
The kinetic energy possessed in itself will be taken away, kinetic energy cannot be utilized again.So same air quantity, it is desirable to which the energy that it is taken away is smaller more
Good namely outlet air wind speed is the smaller the better.
In air-conditioning and air source heat pump system, if the air quantity for flowing through two devices increases, the temperature difference of air inlet/outlet can be reduced, increased
The temperature difference of refrigerant in air and condenser, evaporator, to increase the heat conduction of velocity and heat output of air and refrigerant.So
The increase of fan delivery can be the heat exchange area and volume for reducing condenser and evaporator, cost-effective create conditions.
In ventilation air draft field, work(made by wind turbine is substantially transitioned to the kinetic energy of outlet air air-flow, frictional resistance band in air duct
The energy consumption come accounts for the ratio very little of total energy consumption.As can using the wind speed decreased of general mood stream, and keep throughput constant, wind can be reduced
The power of machine；Or outlet air air-flow wind speed decreased and power of fan is constant that air quantity is made to increase.
In a word：In air-conditioning, heat pump assembly, if there is method is not increasing or reduce plus under the premise of fan energy consumption, make
The air quantity of wind turbine increases considerably, and to improving the COP of air conditioner heat pump system, has significant effect.In ventilation field, do not increase
Energy consumption and so that the air quantity of wind turbine is increased, or do not reduce air quantity and make wind speed decreased, this means that energy saving.
Utility model content
The utility model is directed to the deficiency of existing wind turbine, discloses a kind of wind turbine of Wind Volume low-power consumption, wind turbine includes motor
With gas driving part, define gas-powered component axis of rotation centered on axis 2., define fan operation when gas-powered portion
2. outside outlet air surface that part rotates the revolution shape of formation around central shaft be S1 6., define S1 and be projected as S2 7. in axial, it is fixed
The area of adopted S1 is that the area of A, S2 are B, it is characterized in that the outlet air surface S1 is not a plane；At least portion on outlet air surface S1
Subregional normal and the angle of central shaft 2.>30 °, at least angle of the normal Yu central shaft of subregion 2.<60°；A/B
>1.2；At least there are radial component, and the flow direction of the gas in part from the flow direction of the outlet air surface S1 gases flowed out
The angle 2. formed with central shaft>30°；Define 6. maximum radius of gyration that S1 arrives central shaft maximum distance 2. namely revolution
For for D, S1 6. on leave central shaft 2. distance be more than the ratio between the air side gas flow rates of any two position of 0.35D
C, 1/2≤C≤2.
The principles of the present invention are illustrated below：Wind turbine outlet air gas flow Q=outlet air wind speed V × air outlet is horizontal
Sectional area M, airflow kinetic energy value E=ρ × QV2/ 2=ρ × MV3/ 2=ρ × Q3/2M2, ρ is the proportion of air.It can be with from formula
Find out：If M is constant, airflow kinetic energy E and wind speed V3With air mass flow Q3It is directly proportional, if Q is constant, airflow kinetic energy E and M2It is inversely proportional.
Such as gas flow Q it is constant when, if cross-sectional area is made to increase to 1.5M from M, speed is reduced to V/1.5, airflow kinetic energy from V
It is reduced to 1/1.52× E=0.444E, reduction ratio are 1-0.444=0.556=55.6%.In another example air outlet cross-sectional area
Increasing to 3M from M, wind speed becomes 0.7V from V, then gas flow becomes 3M × 0.7V=2.1Q, kinetic energy=ρ × 2.1 × Q ×
(0.7V)2ρ × 2.1/2=× 0.49QV2/ 2=1.03 ρ × QV2/ 2, i.e., gas flow increases to 2.1 times at this time, and kinetic energy becomes
1.03 times, kinetic energy values are basically unchanged.In the utility model, the fan blade of the not conventional axial flow blower of gas-powered component,
Fan blade is in the round and smooth bending of length direction or is that axial-flow leaf is combined with centrifugal wind wheel, makes the outlet air surface of wind turbine from a circle
6. plane or annular plane are turned into the outside curve S1 of a revolution, revolution is still circle in the projection of central axis direction
7. plane or annular plane S2, because the area A of the outside curve S1 of revolution 6. are more than the area Bs of S2 7., increase in this way
Total outlet air cross-sectional area of wind turbine, can not increase in air quantity or air quantity increases ratio and is less than outlet air cross-sectional area and increases ratio
Under the premise of example, the kinetic energy of per kilogram gas in air-flow is made significantly to decline, reduces the total kinetic energy that wind turbine outlet air gas is taken away.
Meanwhile 6. the ratio between flowing velocity of each zone gas is no more than 1 to outlet air surface S1 in the utility model：2, make the flowing of all gas
Speed is uniform as possible so that when identical air quantity, the total kinetic energy that outlet air air-flow is taken away is minimum.
Summarize the core concept of the utility model：In axial projective area when not increasing the gas-powered component rotation of wind turbine
Under the premise of, the axial direction for becoming the present faces S1 from the axial outlet air of conventional axial flow blower adds radial outlet air, makes the outlet air surface of wind turbine
Product increases, while keeping each outlet air region wind speed uniform.The utility model expands air-out area, because of the total kinetic energy E of outlet air air-flow
It is constant and go out the uniform premise of wind velocity in air mass flow Q so compare axial flow blower with square being inversely proportional for air-out area M
Under, considerably reduce the kinetic energy and wind turbine power consumption of outlet air air-flow；Either while air quantity increases, make the increasing of wind turbine power consumption
Far smaller than axial flow blower is added to be proportional to air quantity Q3Power consumption increase, it might even be possible to make air quantity increase and wind turbine power consumption does not increase or
Reduce.It is finally reached the purpose of small wind turbine power consumption Wind Volume, so that the COP of air-conditioning and heat pump system is significantly improved, makes ventilation device
Energy consumption be remarkably decreased.
As preferred：
1, the flowing side of the flow direction of the gas of any non axial flowing in wind turbine outlet air and the gas axially flowed
It is not more than 90 ° to mutual angle, the axial component of all outlet air air-flows is same direction.
2, the fan blade in the wind turbine in existing similar axial flow blower, and have the wind wheel in similar centrifugal blower, the wind
Leaf and wind wheel are driven by same motor.Effect is simple in structure, and air-out area is big.
3, wind turbine has several air-ducting rings or guide vane.The air-ducting ring or guide vane are mounted on the outlet air of curved surface S1
Side, the flow direction for using general mood body change towards the direction of needs.It is the flow direction trend axial direction for using general mood body that it, which is acted on,
The direction of flowing, using general mood body as possible no longer becomes the air inlet of wind turbine.
4, the gas-powered component be several in length direction be round and smooth bending fan blade, wind turbine fan blade when rotated
Form the revolution of a parabolic shape.
5, the gas-powered component be several in length direction be round and smooth bending fan blade, wind turbine fan blade when rotated
Form a spherical revolution.
The beneficial effects of the utility model
One, the utility model compares axial flow blower, when power of fan is constant, can increase ventilation quantity in ventilation field
50%-300%；Air quantity can be with energy saving 50%-90% when constant.It simultaneously can noise-decreasing.
Two, under the premise of not increasing the overall physical dimensions of air-conditioning heat pump equipment, not increasing considerably wind turbine power consumption, make
The air quantity of outdoor unit heat exchanger dramatically increases, and is effectively reduced the air inlet/outlet temperature difference of outdoor unit heat exchanger, according to different operating modes,
The air inlet/outlet temperature difference reduces amplitude between 2 DEG C -5 DEG C, improves the COP of air conditioner heat pump system between 10%-25%.If indoor
Machine wind turbine can also be equally transformed, and the COP of air conditioner heat pump system is improved more.
Three, when the utility model is used for air-conditioning heat pump equipment, in equipment using the micro-channel heat exchanger of small windage as two
Device, while when keeping the front face area of micro-channel heat exchanger identical as common copper pipe finned heat exchanger area, not increasing wind turbine
Under the premise of power, the air quantity of two devices can be further increased, the air inlet/outlet temperature difference of two devices is reduced, significantly improves air-conditioning heat pump
COP。
Description of the drawings
Fig. 1 is the axial flow blower and the combined blower fan structure schematic diagram of centrifugal blower of the utility model.
Fig. 2 is the utility model plus wind loop axial flow blower and the combined blower fan structure schematic diagram of centrifugal blower.
Fig. 3 is the structural schematic diagram of the spherical wind turbine of the utility model.
Fig. 4 is the structural schematic diagram of the utility model parabolic shape wind turbine.
Fig. 5 is the structural schematic diagram that the utility model parabolic shape wind turbine adds air-ducting ring.
Fig. 6 is the schematic diagram of the utility model outlet air surface S1 and outlet air surface in axis projection S2.
In figure：1. fan blade 2. central shaft 3. air-ducting ring 4. wind wheel 5. tapered guide duct 6. S1 7. S2 8. wind loops
9. ventilation shaft 10. wall.
Specific implementation mode
Below by embodiment, the structure, function, advantage of the utility model is expanded on further.
Embodiment 1:Cylindric wind turbine
In the present embodiment, referring to Fig. 1, Fig. 2, have in wind turbine the fan blade of axial flow blower 1. with the wind wheel in centrifugal blower 4.,
1. 4. fan blade is relatively fixed with wind wheel, driven by the same motor, 1. fan blade generates axial air-flow, 4. wind wheel generates radial
Air-flow.In addition to the central shaft where motor 2. position near zone, axial flow and the just radial air flow of disengaging wind wheel 4.
Speed is essentially identical, and mutual wind speed difference is no more than 50%.Radial air-out area is not less than the 1/2 of axial air-out area,
The cylinder side surface area that i.e. wind wheel is formed is not less than the 1/2 of the area of a circle on cylinder top.There are several wind-guidings in cylinder outside
3. or guide vane circle, makes radial outlet air be deflected toward axial flow direction, and avoiding radial outlet air again becomes the air inlet of wind turbine.According to reality
It needs, can be arranged or is not provided with wind loop 8..
Such as a diameter of 50 centimetres of cylinder, the length of wind wheel is 25 centimetres, then the cylindrical tip area of a circle is 0.5 × 0.5
× 3.14/4=0.196 meters2, cylindrical side area is 3.14 × 0.5 × 0.25=0.392 meters2.I.e. in the case, axis is compared
Flow fan, air-out area increase to 3 times, if keeping air quantity constant, outlet air air velocity is uniform, then wind speed is reduced to former wind speed
1/3, the kinetic energy of air-flow is reduced to original 1/9；If wind speed is reduced to original 70%, air quantity is about original axis stream wind
2.1 times of machine, the kinetic energy of air-flow are 2.1 × 0.7 × 0.7=1.029 times of original axial flow blower, i.e. air quantity increases 110%,
Total outlet air airflow kinetic energy does not almost increase.
If the present embodiment is for air draft occasion of divulging information, because the wind turbine work done overwhelming majority is converted into the dynamic of outlet air air-flow
Can, energy loss ratio is very low caused by gas current friction, therefore when air quantity is constant, it is possible to reduce 80% or more energy consumption,
When wind turbine power consumption is constant, it can increase by 100% air quantity.
3. or guide vane if the present embodiment is used for the outdoor unit of air-conditioning heat pump, air-ducting ring need to be generally installed, air-ducting ring
3. or guide vane can 4. be rotated together with wind wheel, can also be fixed, and 4. radial outlet air that wind wheel drives is made to change
Direction deflects towards axial flow direction, radial outlet air gas is avoided to come back to the heat exchanger of outdoor unit.In conventional axial flow blower outlet air
Wind speed be more than 8 meter per seconds occasion, 60% or more of the work done of general wind turbine institute is converted into the kinetic energy of outlet air gas, remaining for gram
Convinced stream flows through the frictional resistance of two devices.In this example, the kinetic energy of outlet air gas reduces about 90% compared in axial flow blower,
Make 90% frictional resistance for overcoming air-flow to flow through two devices of the power consumption of wind turbine, is 2.2 times of original 40% ratio, equally
Power of fan, air quantity about 30% can be increased, such as use the air inlet/outlet temperature difference of the outdoor unit heat exchanger of routine axial flow blower for 12
DEG C, then it can reduce about 3.5 DEG C of the air inlet/outlet temperature difference, COP improves 15% or more.
Embodiment 2:Parabolic shape wind turbine
Referring to Fig. 4, Fig. 5, in the present embodiment 1. the fan blade of wind turbine is round and smooth bending in length direction, 1. wind turbine is rotating
Shi Fengye forms the revolution of a parabolic shape, and in addition to the central shaft 2. region of neighbouring installation motor, other outlet air surface S1 are 6.
The speed of the air-flow of each position is essentially identical, and mutual wind speed difference is no more than 50%.
If the utility model is aerated air draft for two spaces being isolated, indoor air is such as discharged to outdoor,
3. general wind turbine does not install flow deflector and baffle liner.
If wind turbine is used for air-conditioning and air source heat pump, then flow deflector or baffle liner generally need to be installed 3., flow deflector or lead
3. stream circle can be integrally fixed on wind turbine and be rotated together with wind turbine, can also be to be fixed on device housings not with wind turbine
Rotation.
Embodiment 3:Spherical draft fan
Referring to Fig. 3, in the present embodiment 1. the fan blade of wind turbine is round and smooth bending in length direction, wind turbine fan blade when rotated
1. forming a spherical revolution shape outlet air surface, ventilation of the assembling inside air draft side, revolution with a perforation wall 10.
9. pipeline is connected, 9. air draught side of the air inlet in wall 10., ventilation shaft air inlet connect a tapered guide duct to ventilation shaft
5. the cross-sectional area ecto-entad of tapered guide duct 5. is gradually reduced, the serrated end of tapered guide duct 5. and ventilation shaft 9. phase
Connection, 9. diameter is identical with ventilation shaft for the serrated end diameter of tapered guide duct 5..Except installation motor central shaft 2. position is attached
The speed of near field, other outlet air surface S1 6. air-flows of each position is essentially identical, and mutual wind speed difference is no more than 50%.
Assuming that the diameter L of a diameter of pipeline of fan blade of conventional axial flow blower, the diameter of the sphere of the utility model is wind
1.5 times of leaf diameter L, subtract the part that is connected with pipeline, then 6. surface area is about 2.25L to the S1 of orbicule2×3.14×
80%, and the air-out area of the axial flow blower of a diameter of L is L2/ 4 × 3.14, the two area ratio is 2.25 × 0.8 × 4=
7.2 again；Same ventilation quantity, wind speed ratio are 1：7.2, the kinetic energy that the air-flow of the utility model is taken away is axial flow blower
1/7.22, about 2% or so, therefore a large amount of energy consumption can be saved.
The above various embodiments is several concrete applications of the utility model and every claim to the utility model
Be specifically described, the gas-powered component in the utility model may be constructed variously-shaped revolution when wind turbine rotates, such as
Taper, trapezoidal, hemispherical etc..As long as having the feature disclosed in the utility model claims, it is new to belong to this practicality
The protection domain that type is covered.
Claims (6)
1. a kind of wind turbine of Wind Volume low-power consumption, wind turbine includes motor and gas driving part, defines the rotation of gas-powered component
Axis centered on the shaft heart, the outer side air-out for the revolution shape that gas-powered component is formed around center axis rotation when defining fan operation
Face is S1, defines S1 and is projected as S2 in axial, the area for defining S1 is that the area of A, S2 are B, it is characterized in that the outlet air
Face S1 is not a plane；At least angle of the normal and central shaft of subregion on outlet air surface S1>30 °, at least part area
The normal in domain and the angle of central shaft<60°；A/B>1.2；At least part has from the flow direction of the outlet air surface S1 gases flowed out
Radial component, and the angle that the flow direction of the gas is formed with central shaft>30°；Maximum distances of the definition S1 to central shaft
I.e. the maximum radius of gyration of revolution is the air side gas that any two position of the central shaft distance more than 0.35D is left on D, S1
The ratio between body flowing velocity is C, 1/2≤C≤2.
2. the wind turbine of a kind of Wind Volume low-power consumption according to claim 1, it is characterized in that wind turbine outlet air is any non axial
The flow direction of the gas of flowing is not more than 90 ° with the mutual angle in the flow direction of the gas axially flowed, i.e., all
The axial component of outlet air air-flow is same direction.
3. the wind turbine of a kind of Wind Volume low-power consumption according to claim 1, it is characterized in that being wrapped in the gas-powered component
Including makes gas make the fan blade axially flowed, also includes that gas is made to make the wind wheel of Radial Flow, the fan blade and wind wheel are by same electricity
Machine drives.
4. the wind turbine of a kind of Wind Volume low-power consumption according to claim 1, it is characterized in that wind turbine has several air-ducting rings
Or guide vane, the air-ducting ring or guide vane are mounted on the air side of outlet air surface S1, use the flow direction of general mood body towards needs
Direction change.
5. the wind turbine of a kind of Wind Volume low-power consumption according to claim 1, if it is characterized in that the gas-powered component is
Do the fan blade in length direction being round and smooth bending, the revolution of wind turbine one parabolic shape of fan blade formation when rotated.
6. the wind turbine of a kind of Wind Volume low-power consumption according to claim 1, if it is characterized in that the gas-powered component is
The fan blade in length direction being round and smooth bending is done, fan blade forms a spherical revolution to wind turbine when rotated.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820326000.4U CN207961047U (en) | 2018-03-09 | 2018-03-09 | A kind of wind turbine of Wind Volume low-power consumption |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820326000.4U CN207961047U (en) | 2018-03-09 | 2018-03-09 | A kind of wind turbine of Wind Volume low-power consumption |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108167228A (en) * | 2018-03-09 | 2018-06-15 | 郏松筠 | A kind of wind turbine of Wind Volume low-power consumption |
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2018
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108167228A (en) * | 2018-03-09 | 2018-06-15 | 郏松筠 | A kind of wind turbine of Wind Volume low-power consumption |
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