Device for increasing air flow speed and using its kinetic energy

专利摘要:
Apparatus for increasing the flow speed of a medium such as air and for recovering its kinetic energy, comprising a series of concentrical, substantially symmetrically arranged annular members separated by annular slots, said members in the direction towards length axis of the apparatus, which coincides with the flow direction of the medium, having successively and substantially symmetrically decreasing dimensions in the direction of said length axis to the formation of an inlet opening wherein said annular members have curved leading edges with intermediary annular slots for removal of turbulent medium, and to the formation of an outlet opening acting as a diffuser for the medium, wherein said annular members are successively thinner to the formation of sharp edges directed outwards from the length axis of the apparatus; the kinetic energy of the medium being recovered by conventional means. Separate accelerator means are also provided.
公开号:SU1218930A3
申请号:SU792732750
申请日:1979-01-29
公开日:1986-03-15
发明作者:Карлссон Ян；Раймель Герт
申请人:@Кб Виндкрафт И Гетеборг (Фирма)；
IPC主号:

专利说明:

one
The invention relates to the field of wind energy and relates to a device for increasing the flow rate of air and using its kinetic energy.
A device for increasing the flow rate of air and using its kinetic energy is known, comprising a conical housing and an air turbine installed therein l.
However, this device has low efficiency due to high turbulence of the air flow, which leads to loss of energy.
The purpose of the invention is to increase efficiency.
The goal is achieved by the fact that in the device for increasing the flow rate of air and using its kinetic energy, containing a conical casing and an air turbine installed in it, the conical casing is formed symmetrically arranged coaxially to the axis of the device with gaps relative to each other annular elements, each of which on the upstream side, it has an aerodynamically curved edge and a tapering edge bent outward from the longitudinal axis, on the outlet side, each subsequent annular the edge is shifted relative to the subsequent to form a conical inlet and outlet nozzles, and one or more air turbines are located in the center of the device coaxially to the central axis.
The number of ring elements is 3-5.
FIG. shows a device for increasing the air flow rate, a slit; in fig. 2 is the same, with annular elements having curvilinear walls in FIG. 3 - the same, with an external casing; in fig. 4 - the same, with an air turbine installed inside it; in fig. 5 - the same, with ring elements.
189302
made of sections of aerodynamic profiles with an air turbine installed inside.
The device for increasing the air flow rate and using its kinetic energy contains a conical case 1 and an air turbine 2 installed in it, the conical case is formed symmetrically coaxially located along the axis of the device with gaps relative to each other by ring elements 3, each of which is on the inlet side has aerody, j namically curved edge 4 and tapering edge 5 bent outward from the longitudinal axis from the exit side, each subsequent annular edge being shifted relatively 2 subsequent with the formation of conical inlet and outlet nozzles 6 and V. The device shown in FIG. 3, also has an external casing 8. The number of col25 elements 3 may be equal to 3-5 pieces.
When air enters the conical casing due to the constriction, an increase in its velocity occurs and some turbulence is inevitable in front of each section. Such turbulent air enters the conical inlet 6, and practically laminar air flow is maintained along the entire device.
The air turbine 2 is mounted at the outlet of the device, i.e. in the narrowest part of it. The air velocity is successively increased when it passes through successively the annular elements of the device, and the increase in speed approximately corresponds to a decrease in the cross-sectional area of the passage.
Therefore, such an embodiment of the device for increasing the flow rate of air and using its kinetic energy makes it possible to more effectively use
thirty
35
40
45
50
wind power.
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F

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Compiled by T. Dovgeli Editor O. Kolesnikova Tehred 3.Paly. Proof-reader I.Erdeyi
Order 1142/63 Circulation 448 Subscription
VNIIPI USSR State Committee
for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5
Branch PSh1 Patent, Uzhgorod, st. Project, 4
5

权利要求:
Claims (2)
[1]
1. DEVICE FOR INCREASING THE AIR FLOW SPEED AND USING ITS KINETIC ENERGY, comprising a conical casing and an air turbine installed in it, characterized in that, in order to increase efficiency, the conical casing is formed by annular elements symmetrically arranged coaxially to the axis of the device, with gaps relative to each other each of which has an aerodynamically curved edge on the inlet side of the stream and an edge tapering outwardly bent outward from the longitudinal axis on the outlet side, with each subsequent the annular edge is shifted relative to the subsequent one to form conical inlet and outlet nozzles, and one or more air turbines are located in the center of the device coaxially with the central axis ¹ . §
[2]
2. The device according to π. 1, characterized in that the number of ring elements is 3-5.
Priority 10.01.79 in π. 1. 01/30/78 according to paragraph 2.
SU „„ 1218930
Figure 1

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法律状态:

优先权:

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申请号 | 申请日 | 专利标题

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SE7801112A|SE7801112L|1978-01-30|1978-01-30|ACCELERATOR|

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SE7900241A|SE434977B|1979-01-10|1979-01-10|An apparatus for increasing the flow speed of a liquid or gaseous medium|

---