CN101629756A - Air source heat pump water heater with high energy efficiency - Google Patents
Air source heat pump water heater with high energy efficiency Download PDFInfo
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- CN101629756A CN101629756A CN200910099411A CN200910099411A CN101629756A CN 101629756 A CN101629756 A CN 101629756A CN 200910099411 A CN200910099411 A CN 200910099411A CN 200910099411 A CN200910099411 A CN 200910099411A CN 101629756 A CN101629756 A CN 101629756A
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Abstract
The invention relates to an air source heat pump water heater with high energy efficiency, comprising an aerofoil fan, a motor, a motor rotation shaft and a compressor, wherein the aerofoil fan consists of a wheel hub used as a rotation shaft and a blade, wherein the wheel hub is arranged on the motor rotation shaft; the blade is provided with a blade surface, a front edge, a rear edge and an outer blade edge; a plurality of the blades are arranged on the periphery of the wheel hub uniformly; the blade surface is S shaped in a transverse direction and is a large arc in a longitudinal direction; and a part of the front edge is thickened and is additionally provided with a front edge closed angle. The invention improves the aerofoil fan, thereby meeting the requirements for silence, energy saving and high efficiency of the heat pump water heater.
Description
Technical field
The present invention relates to a kind of Teat pump boiler, refer in particular to a kind of air source heat pump water heater with high energy efficiency.
Background technology
Air source hot pump water heater is to adopt contrary Carnot cycle principle design, heat in the low temperature environment is pumped in the water system of high temperature.According to the heat conservation principle, improve the performance of unit, be exactly to improve from the heat number of low temperature environment picked-up as far as possible, air source hot pump water heater generally is the aluminium foil finned heat exchanger that adopts the aerofoil fan forced-convection heat transfer from the heat equipment of low temperature environment picked-up.So the quality of aerofoil fan directly influences the performance of Teat pump boiler, the i.e. coefficient of performance and noise.Aerofoil fan in the market all exists air quantity too small, the phenomenon that noise is excessive, and when air quantity strengthened, noise more can sharply increase.Analyzing reason, mainly is because the blade of fan is too smooth and thickness evenly and partially approaches.Because the noise of aerofoil fan running mainly is made up of two kinds of noises, i.e. rotational noise and eddy current crack, wherein eddy current crack has the greatest impact.The mechanism that eddy current crack produces be since aerofoil fan when rotating at a high speed, the air-flow around its blade is subjected to rotating vane when stopping, can form and stream layer, and slowly move to certain along the blade surface curve radian and converge on a bit and finally at the vacuum side of blade lift-off.Stream layer blade surface not with the motion of air-flow downstream, but be in a static relatively state.The border of streaming between layer and tool periphery air-flow is unsettled, the periphery air communication is crossed tangential viscous force and is produced the effect of entrainmenting, a layer gas motion streamed in drive, near the bifurcation at the fan blade back side, formed the vortex embryo, and gradually grow up, along with eddy current embryo radius is increasing, after quality acquires a certain degree, the vortex embryo is just from the vacuum side of blade slippage, and moves downstream with air-flow.When the slippage of vortex embryo, near this district's opposite side bifurcation, can form a new vortex embryo, thereby begin one to above similar process.The eddy current embryo is big more, and noise is also big more.In addition, aerofoil fan is easy to generate the flutter phenomenon when rotating at a high speed, increases with rotating speed, and the flutter phenomenon can obviously increase, and then causes the vibration of fan, motor, electric machine support, even makes complete machine produce strong covibration.
Summary of the invention
The objective of the invention is to solve the used aerofoil fan of existing Teat pump boiler under the situation that increases air output, noise becomes the problem of sharply amplifying, a kind of air source heat pump water heater with high energy efficiency is provided, it improves aerofoil fan, to satisfy quiet, energy-conservation, the efficient requirement of Teat pump boiler.
For achieving the above object, the solution that the present invention takes is: a kind of air source heat pump water heater with high energy efficiency, it comprises aerofoil fan, motor and electric machine rotational axis, compressor, wherein aerofoil fan is made of wheel hub and blade as rotating shaft, wheel hub is installed on the electric machine rotational axis, and blade has blade face, leading edge, trailing edge, leaf outer rim, the peripheral evenly distributed some leaves of wheel hub, the blade face laterally becomes S shape, vertically is big camber line that the local thickening of leading edge also increases the leading edge wedge angle.
The invention mainly is leaf improvement the to the used outdoor aerofoil fan of Teat pump boiler, the streamline that makes the air-flow leaf is aerodynamic more, the radius of the vortex embryo that forms at vacuum side of blade when reducing aerofoil fan as far as possible and rotating at a high speed and the time of single vortex embryogenesis, and the flutter phenomenon of less as much as possible fan high speed rotary course, increase anti-vibration performance.The blade face is designed to laterally become S shape, vertically is big camber line, can reduce the eddy current radius and the single vortex embryogenesis time of vortex embryo well; The local thickening of leading edge, in order to reduce the flutter phenomenon of aerofoil fan rotary course, the wedge angle portion of outstanding leading edge can reduce air inlet angle and windage effectively exactly, improves rotating speed, reduces noise.It has increased air quantity effectively, has reduced noise, has improved the heat exchange effect of Teat pump boiler main frame.
Description of drawings
Fig. 1 is the structure chart of the used aerofoil fan air-flow inflow side of air source heat pump water heater with high energy efficiency.
Fig. 2 is the rearview of aerofoil fan shown in Figure 1.
Fig. 3 is the axonometric drawing of aerofoil fan shown in Figure 1.
Fig. 4 is the horizontal partial sectional view of aerofoil fan individual blade shown in Figure 1.
Among the figure: 10, wheel hub, 21a, leading edge, 21b, leading edge wedge angle, 22, the leaf outer rim, 23a, blade face cambered surface one, 23b, blade face cambered surface two, 24a, leaf trailing edge one, 24b, leaf trailing edge two.
The specific embodiment
Referring to Fig. 1-Fig. 4, a kind of air source heat pump water heater with high energy efficiency, it comprises aerofoil fan, motor and electric machine rotational axis, compressor, aerofoil fan is made of wheel hub 10 and the blade as rotating shaft, wheel hub 10 is installed on the electric machine rotational axis, and blade has blade face, leading edge 21a, trailing edge, leaf outer rim 22, wheel hub 10 peripheral evenly distributed some blades, the blade face laterally becomes S shape, vertically is big camber line that the local thickening of leading edge 21a also increases leading edge wedge angle 21b.Described blade has three.
Referring to Fig. 1-Fig. 3, described blade face partly is made up of cambered surface one 23a and blade face cambered surface two 23b two, S shape is formed by blade face cambered surface one 23a and blade face cambered surface two 23b, cambered surface one 23b in blade face is recessed to become big camber line to vacuum side of blade, the little camber line of the positive one-tenth of blade face cambered surface two 23a bulged blades, blade face cambered surface one 23a becomes big camber line recessed to vacuum side of blade with blade face cambered surface two 23b two part longitudinal directions simultaneously.
Referring to Fig. 1-Fig. 3, the local thickening of described leading edge 21a, promptly the bottom from blade face cambered surface two 23b thickeies to the root on blade face, and the thickness of reinforcement is 5.0mm-6.5mm, and the width of reinforcement is 25mm-35mm.38 ° of the wedge angle portion one-tenth of described leading edge wedge angle 21b are outstanding, and outstanding length is 50mm-65mm.
Referring to Fig. 1-Fig. 3, described trailing edge is made up of leaf trailing edge one 24a and leaf trailing edge two 24b, and leaf trailing edge one 24a and leaf trailing edge two 24b extend to place, the plane end of 5mm under the wheel hub 10 positive facial planes along with the camber line of blade face cambered surface one 23a and blade face cambered surface two 23b.
Referring to Fig. 1-Fig. 3, wheel hub 10 as rotating shaft is installed on the electric machine rotational axis, aerofoil fan is rotation at a high speed under the drive of motor, air-flow enters from leading edge wedge angle 21b, leading edge 21a, after boosting in blade face cambered surface one 23a, blade face cambered surface two 23b places, fly away from the blade face at a high speed at leaf trailing edge one 24a, leaf trailing edge two 24b places.
This air source heat pump water heater with high energy efficiency is compared with existing Teat pump boiler, and heat exchange efficiency improves about 5%, and noise reduces about 4d B (A).
Claims (6)
1, a kind of air source heat pump water heater with high energy efficiency, it comprises aerofoil fan, motor and electric machine rotational axis, compressor, aerofoil fan is made of wheel hub (10) and the blade as rotating shaft, wheel hub (10) is installed on the electric machine rotational axis, blade has blade face, leading edge (21a), trailing edge, leaf outer rim (22), the peripheral evenly distributed some blades of wheel hub (10) is characterized in that: the blade face laterally becomes S shape, vertically is big camber line that the local thickening of leading edge (21a) also increases leading edge wedge angle (21b).
2, air source heat pump water heater with high energy efficiency according to claim 1 is characterized in that: the blade of described aerofoil fan has three.
3, air source heat pump water heater with high energy efficiency according to claim 1, it is characterized in that: described blade face partly is made up of cambered surface one (23a) and blade face cambered surface two (23b) two, S shape is formed by blade face cambered surface one (23a) and blade face cambered surface two (23b), blade face cambered surface one (23b) is recessed to become big camber line to vacuum side of blade, the little camber line of the positive one-tenth of blade face cambered surface two (23a) bulged blade, blade face cambered surface one (23a) becomes big camber line recessed to vacuum side of blade with blade face cambered surface two (23b) two part longitudinal directions simultaneously.
4, air source heat pump water heater with high energy efficiency according to claim 1, it is characterized in that: the local thickening of described leading edge (21a) is promptly thickeied to the root on blade face from the bottom of blade face cambered surface two (23b), the thickness of reinforcement is 5.0mm-6.5mm, and the width of reinforcement is 25mm-35mm.
5, air source heat pump water heater with high energy efficiency according to claim 1 is characterized in that: 38 ° of the wedge angle portion one-tenth of described leading edge wedge angle (21b) are outstanding, and outstanding length is 50mm-65mm.
6, air source heat pump water heater with high energy efficiency according to claim 1, it is characterized in that: described trailing edge is made up of leaf trailing edge one (24a) and leaf trailing edge two (24b), and leaf trailing edge one (24a) and leaf trailing edge two (24b) extend to place, the plane end of 5mm under the positive facial plane of wheel hub (10) along with the camber line of blade face cambered surface one (23a) and blade face cambered surface two (23b).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910099411A CN101629756A (en) | 2009-06-06 | 2009-06-06 | Air source heat pump water heater with high energy efficiency |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910099411A CN101629756A (en) | 2009-06-06 | 2009-06-06 | Air source heat pump water heater with high energy efficiency |
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| Publication Number | Publication Date |
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| CN101629756A true CN101629756A (en) | 2010-01-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200910099411A Pending CN101629756A (en) | 2009-06-06 | 2009-06-06 | Air source heat pump water heater with high energy efficiency |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107436007A (en) * | 2017-09-12 | 2017-12-05 | 中山市壹比壹节能环保科技有限公司 | Axial-flow type mute air conditioning fan |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1629498A (en) * | 2003-12-15 | 2005-06-22 | 珠海格力电器股份有限公司 | Impeller for fan, fan using impeller and air conditioner using fan |
| CN2789475Y (en) * | 2005-03-09 | 2006-06-21 | 张本熖 | Improved fan balde structure |
| CN1818498A (en) * | 2006-02-27 | 2006-08-16 | 黄道德 | Hot-pump water heater with air source |
| CN101144487A (en) * | 2006-08-25 | 2008-03-19 | 三洋电机株式会社 | Axial fan and blade design method for the same |
| CN201159203Y (en) * | 2008-05-18 | 2008-12-03 | 威海克莱特菲尔风机有限公司 | Low noise axial fan blade |
| CN201488274U (en) * | 2009-06-06 | 2010-05-26 | 浙江正理生能科技有限公司 | Energy-efficient air source heat pump water heater |
-
2009
- 2009-06-06 CN CN200910099411A patent/CN101629756A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1629498A (en) * | 2003-12-15 | 2005-06-22 | 珠海格力电器股份有限公司 | Impeller for fan, fan using impeller and air conditioner using fan |
| CN2789475Y (en) * | 2005-03-09 | 2006-06-21 | 张本熖 | Improved fan balde structure |
| CN1818498A (en) * | 2006-02-27 | 2006-08-16 | 黄道德 | Hot-pump water heater with air source |
| CN101144487A (en) * | 2006-08-25 | 2008-03-19 | 三洋电机株式会社 | Axial fan and blade design method for the same |
| CN201159203Y (en) * | 2008-05-18 | 2008-12-03 | 威海克莱特菲尔风机有限公司 | Low noise axial fan blade |
| CN201488274U (en) * | 2009-06-06 | 2010-05-26 | 浙江正理生能科技有限公司 | Energy-efficient air source heat pump water heater |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107436007A (en) * | 2017-09-12 | 2017-12-05 | 中山市壹比壹节能环保科技有限公司 | Axial-flow type mute air conditioning fan |
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Application publication date: 20100120 |