Horizontal axis water flow power generation array device with fairing
Technical Field
The invention relates to a horizontal axis water flow power generation array device, and belongs to the technical field of water flow energy power generation.
Background
The water flow energy has the characteristics of large distribution range, small environmental pollution, large reserve energy and the like, and the total water flow energy development amount of China is about 4 hundred million kilowatts according to statistics. However, the existing water flow energy power generation device still has the bottleneck that the water utilization rate is not high, and the further development of the water flow energy power generation device is restricted due to less consideration of inland environment factors.
The horizontal shaft roller baffle type water flow power generation device disclosed by publication No. CN2937534Y adopts a roller baffle and a horizontal shaft water turbine to generate power, has good adaptability to water flow environment, but has the problems of easy interference of water flow sundries, low power generation efficiency of the device and the like, and has difficult arrayed arrangement.
The summary is thus as follows:
1. The aspect of water area utilization rate: the array power generation has great effect on improving the water flow energy capacity of the generator set, but the commercial development of the water flow power generation array device still has problems, and the related research has the problems of low importance and less research content.
2. Inland river flow condition factors: the current velocity of the inland environment water flow is greatly changed, so that the power generation stability of the power generation device is influenced; meanwhile, the problems of sundry interference, sediment accumulation, large water level fluctuation and the like exist in the inland river environment, and the problems restrict the large-scale application of the inland river water flow power generation field.
Disclosure of Invention
The invention provides a horizontal axis water flow power generation array device with a fairing, which aims to solve the problems that the current inland water flow energy capacity is low and more factors for disturbing a water flow power generator exist.
The technical scheme adopted by the invention for solving the problems is as follows: the invention comprises a plurality of fixed pile foundations, a platform, a plurality of horizontal shaft power generation equipment, a plurality of array auxiliary structures and a fairing;
The utility model discloses a plurality of fixed pile foundation equipartitions set up the lower surface at the platform, and a plurality of array auxiliary structure equipartitions set up the upper surface at the platform, and a plurality of horizontal axis power generation equipment all lay in the below of platform, and every horizontal axis power generation equipment is connected with a corresponding array auxiliary structure, and the radome fairing sets up the below at the platform front portion, and the radome fairing is located the place ahead of a plurality of horizontal axis power generation equipment.
Further, the array auxiliary structure comprises a gear box and a motor;
The horizontal shaft generator device is connected with the motor through a gear box.
Further, the lifting motor and the water level sensor are also included;
the lifting motor is fixed on the platform, the water level sensor is installed below the platform, and the horizontal shaft power generation equipment is connected with the lifting end of the lifting motor.
Further, the system also comprises an autonomous control module;
The automatic control module is arranged on the upper surface of the platform, the signal output end of the water level sensor is connected with the signal receiving end of the automatic control module, and the control signal output end of the automatic control module is connected with the control signal receiving end of the lifting motor.
Further, the device also comprises a sundry blocking net;
the debris blocking net is arranged on the lower surface of the platform, and is positioned in front of the fairing.
Further, the device also comprises two wake plates;
The two wake plates are arranged on the lower surface of the platform in a splayed shape, and the two wake plates are positioned behind the plurality of horizontal shaft power generation devices.
Further, the fairing is a horn-shaped fairing body with the outer contour gradually tapered from front to back.
The beneficial effects of the invention are as follows:
1. The invention adopts the design of the energy-gathering horizontal shaft array, and can effectively improve the energy capacity of inland river water flow compared with a single power generation machine; compared with the power generation array, the double-row staggered layout array design and energy-gathering air guide sleeve scheme can ensure that the high energy capturing efficiency of the power generation array can be realized under the conditions that wake flow field effect has small interference on the power generation array and the flow velocity of water flow has large change;
2. according to the invention, the structural design scheme of the horizontal shaft water turbine is adopted, and the effective power generation area of the horizontal shaft water turbine is maximum under the unit diameter, and meanwhile, the rotating speed of the horizontal shaft water turbine is higher, so that the power generation efficiency is higher;
3. The system design of the platform, the lifting mechanism and the array control module adopted by the invention can realize the self-position adjustment of the power generation array along with the river water level change; in addition, the design also allows maintenance personnel to lift the power generation array above the platform through the lifting mechanism, so that underwater operation is avoided, and the maintainability of the whole power generation device is improved;
4. The invention utilizes the sundry blocking net arranged in front of the platform, and the installation angle can reduce the flow velocity loss of the water flow caused by passing through the blocking net under the condition that sundry in the water flow is separated by the blocking net;
5. the invention utilizes the wake flow plate arranged at the rear of the power generation array, can realize high-efficiency capture of water flow energy and simultaneously reduce the influence of the wake flow field generated by the operation of the water turbine array on the water flow environment;
6. According to the invention, the array control module and the array monitoring module are arranged, so that the overall intelligent degree of the power generation array is effectively improved. The array control module can receive signal input from each sensor, process and send signals to the output end device by itself, so as to realize intelligent operation of the power generation device; the array monitoring module collects and monitors working parameters of each component of the power generation device in real time, and when the parameter index of a certain component exceeds a normal value, the array monitoring module can realize autonomous alarm to a user, so that maintainability of the power generation device is improved; and simultaneously, a user is allowed to remotely monitor the operation state of the power generation device through cloud data.
Drawings
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a front view of the present invention;
FIG. 3 is a side view of the present invention;
FIG. 4 is a top view of the present invention;
FIG. 5 is a bottom view of the present invention;
FIG. 6 is a flow chart of the operation of the present invention for normal power generation;
FIG. 7 is a maintenance flow chart of the present invention when maintenance is needed;
In fig. 1 to 5, 1-stationary pile foundation, 2-platform, 301-lifting motor, 302-water level sensor, 4-horizontal axis power plant, 501-gearbox, 502-motor, 7-fairing, 8-autonomous control module, 9-wake plate.
Detailed Description
In the description of the present invention, it should be understood that the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present invention, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.
The first embodiment is as follows: as shown in fig. 1 to 5, a horizontal axis water flow power generation array device with a fairing comprises a plurality of fixed pile foundations 1, a platform 2, a plurality of horizontal axis power generation equipment 4, a plurality of array auxiliary structures and a fairing 7;
The fixed pile foundations 1 are uniformly distributed on the lower surface of the platform 2, the array auxiliary structures are uniformly distributed on the upper surface of the platform 2, the horizontal shaft power generation equipment 4 are uniformly distributed below the platform 2, each horizontal shaft power generation equipment 4 is connected with one corresponding array auxiliary structure, the fairing 7 is arranged below the front part of the platform 2, and the fairing 7 is located in front of the horizontal shaft power generation equipment 4.
The fixed pile foundation 1 is fixed at the water bottom and is used for providing stability for the power generation device;
the platform 2 is arranged on the fixed pile foundation 1 and is rigidly connected with the fixed pile foundation 1, and the platform 2 provides an installation foundation for other parts of the device;
the horizontal shaft power generation equipment 4 is connected with the upright post on the lower surface of the platform 2 through an internal toothed bar, the horizontal shaft power generation equipment 4 can be lifted onto the platform 2 along the upright post, and the horizontal shaft power generation equipment 4 is used as a power-obtaining structure of a power generation device to capture water flow energy.
The fairing 7 is connected with the platform 2 through an elastic connecting rod; the function of the device is to collect water flow and improve the flow rate of the water flowing through the horizontal shaft power generation equipment 4 so as to improve the power generation efficiency of the power generation device.
The water flow passes through the sundries blocking net 6 to separate sundries in the water flow; the water flow passes through the fairing 7 to be converged, and the flow speed is increased; the high-speed water flow flows through the horizontal shaft power generation equipment 4, the impeller is impacted to drive the impeller to rotate so as to capture water flow energy, and the array auxiliary structure 5 converts the water flow energy captured by the horizontal shaft power generation equipment 4 into electric energy through the motor 502 and the gear box 501 and outputs the electric energy to the outside of the system; the water level sensor monitors water level information in real time; and then, the water flowing through the power generation array is mixed with wake generated by the rotation of the water turbine and passes through the wake plate 9 to be converged, so that the strength of the wake field is reduced, and the environment friendliness is improved.
The second embodiment is as follows: as shown in fig. 1 to 5, the array auxiliary structure includes a gear box 501 and a motor 502 on the basis of the first embodiment;
The horizontal axis generator apparatus 4 is connected to a motor 502 through a gear box 501.
The horizontal shaft power generation device 4 drives a rotor of the motor 502 to rotate through the gear box 501, so that water flow energy is converted into electric energy to be output.
And a third specific embodiment: as shown in fig. 1 to 5, the lifting device further comprises a lifting motor 301 and a water level sensor 302 on the basis of the first embodiment;
The lifting motor 301 is fixed on the platform 2, the water level sensor 302 is installed below the platform 2, and the horizontal shaft power generation device 4 is connected with the lifting end of the lifting motor 301.
When the water level sensor 302 detects the water level fluctuation, the autonomous control module 8 sends out a signal, and then the autonomous control module 8 feeds back to the lifting motor 301, and the lifting motor 301 lifts the horizontal shaft power generation device 4 to a proper water level.
The specific embodiment IV is as follows: as shown in fig. 1 to 5, on the basis of the first and third embodiments, an autonomous control module 8 is further included;
The autonomous control module 8 is disposed on the upper surface of the platform 2, the signal output end of the water level sensor 302 is connected with the signal receiving end of the autonomous control module 8, and the control signal output end of the autonomous control module 8 is connected with the control signal receiving end of the lifting motor 301.
The autonomous control module 8 is used for controlling the lifting motor 301 and the fairing 7 to change along with the water level, monitoring the working state of the power generation array in real time and giving an autonomous alarm to a user.
Fifth embodiment: as shown in fig. 1 to 5, the device further comprises a debris blocking net 6 according to the first embodiment;
The debris blocking net 6 is arranged on the lower surface of the platform 2, and the debris blocking net 6 is positioned in front of the fairing 7.
The lower part of the sundry blocking net 6 is fixed on the fixing device 1, so that the flow velocity loss of water flow caused by the sundry blocking net 6 is reduced under the condition that the water flow sundries interfere the horizontal shaft power generation equipment 4.
Specific embodiment six: as shown in fig. 1 to 5, on the basis of the first embodiment, two wake plates 9 are further included;
Two wake plates 9 are arranged in a splayed shape on the lower surface of the platform 2, and the two wake plates 9 are located behind the plurality of horizontal axis power generation devices 4.
The wake plate 9 is connected with the fixed pile foundation 1 through a connecting rod; the effect of the device is to effectively collect wake flow generated by the operation of the water turbine array by means of the arrangement angle, and reduce the influence of the wake flow on the water flow environment.
Seventh embodiment: as shown in fig. 1 to 5, in the first embodiment, the fairing 7 is a horn-shaped fairing body with an outer contour tapered from front to back.
Principle of operation
When the invention works, the horizontal shaft power generation equipment 4 is arranged below the platform 2 by means of the platform 2 and the fixed pile foundation system 1, water flow energy is efficiently captured in high-speed water flow converged by the fairing 7, and the water flow energy is converted into electric energy by means of the array auxiliary equipment 5 arranged behind the horizontal shaft power generation equipment 4. The anchoring of the fixed pile foundation system 1 at the water bottom provides stability to the device.
As the water level changes, the water level sensor 302 in the water level lifting mechanism 3 detects the water level change, and transmits a signal to the array control module of the self-control module 8, and the array control module sends a signal to the lifting motor 301 to lift the horizontal shaft power generation device 4 and the fairing 7 to a specified position.
The sundry blocking net 6 is arranged in front of the platform 2, and the water flow speed is ensured as much as possible under the condition that sundries are automatically separated by means of the installation angle; wake field effects due to operation of the turbine array are reduced by wake plates 9.
The array monitoring module of the autonomous control module 8 monitors the working state of the horizontal shaft power generation equipment 4 in real time, so that the maintainability of the energy-gathering power generation array device is enhanced; during maintenance, the array control module of the autonomous control module 8 can be operated to independently lift the horizontal shaft power generation equipment 4 onto the platform 2 for maintenance.
The present invention is not limited to the preferred embodiments, and the present invention is described above in any way, but is not limited to the preferred embodiments, and any person skilled in the art will appreciate that the present invention is not limited to the embodiments described above, while the invention has been described with respect to specific examples including presently preferred modes of carrying out the invention, those skilled in the art will appreciate that there are numerous variations and permutations of the above described embodiments that fall within the spirit and scope of the invention as set forth in the appended claims.