摘要:
Provided is a device for supporting a center reflector stably and firmly. The device improves the setting density of heliostats and is capable of reducing the blocking and the shadowing of the beams of light reflected by the heliostats. In a beam down system solar generation device, the center reflector is attached, in a cantilever manner, to a supporting post standing upright. A pylon is provided to stand on the top of the supporting post. A stay member is attached to the pylon and is used for fixing the center reflector. A second stay member is provided to support the supporting post. This second stay member connects: the pylon; a jut extending out from the back side of the supporting post; and a base.
摘要:
Lower heat-collection efficiency and a much smaller amount of solar heat may result from the providing of only a single receiver on a supporting post to collect lights coming from both heliostats located at nearby positions and heliostats located at faraway positions. A solar heat power generation device to be provided by the invention can avoid such problems. The solar heat power generation device has the following characteristic features. The solar heat power generation device comprises: a supporting post 4 including a receiver 1 that receives sunlight; and a plurality of heliostats 6 which are provided concentrically around the supporting post 4 and which reflect the sunlight towards the receiver 1. The supporting post 4 includes at least two receivers 1a and 1b that are arranged in the up-and-down direction. The receiver 1a provided at an upper-side position receives reflected lights L1 coming from the heliostats 6a located at faraway positions, and the receiver 1b provided at a lower-side position receives reflected lights L2 coming from the heliostats 6b located at nearby positions.
摘要:
An object is to provide a solar ray lighting device which is capable of reducing the blocking and the shadowing of beams of light reflected by heliostats and which is capable of fixing firmly and stably a heavy and large-sized center reflector. In a beam-down type solar ray lighting device, at least three supporting blocks are assembled together to form a pyramidal shape. In addition, an outer circumferential edge of the center reflector is fixed to the supporting posts so that the outer circumferential edge of the center reflector can internally touch the supporting posts.
摘要:
An object is to provide a solar ray lighting device which is capable of reducing the blocking and the shadowing of beams of light reflected by heliostats and which is capable of fixing firmly and stably a heavy and large-sized center reflector. In a beam-down type solar ray lighting device, at least three supporting blocks are assembled together to form a pyramidal shape. In addition, an outer circumferential edge of the center reflector is fixed to the supporting posts so that the outer circumferential edge of the center reflector can internally touch the supporting posts.
摘要:
Provided are a method for controlling a heliostat used for collecting of sunlight and a device of the method that achieve: a high sunlight collecting efficiency with a high light collecting rate by allowing no deviation of a light collecting point (a focal point) of sunlight; and a high area arrangement efficiency by having such a configuration in which no rotation by means of a rotation mechanism is carried out. The method is a method for controlling a heliostat being used for collecting of sunlight and having multiple reflecting mirrors in a way that the heliostat tracks the sun in motion, reflects sunlight, and collects the sunlight at a predetermined focal point. The method includes: a step of adjusting the multiple reflecting mirrors so that the multiple reflecting mirrors have a focal point at a predetermined distance; and a step of controlling the multiple reflecting mirrors to track the sun while light beams reflected from the reflecting mirrors have a focal point at an arbitrary point, the multiple reflecting mirrors being configured to tilt in conjunction with each other. In the method, while maintaining a state where the coordinates of predetermined points of the respective reflecting mirrors are fixed, the reflecting mirrors are operated in conjunction with each other.
摘要:
The direction of a solar light tracking sensor is set easily with high accuracy. A solar light tracking guide (35) is installed on the optical axis (11) of the reflected light collected by a heliostat (2). An optical telescope (47) is so attached to the rear end part of the guide (35) as to be aligned with the guide axis (C) of the guide (35). The posture of the solar light tracking guide (35) is so adjusted that a cross provided in the field of view of the telescope (47) agrees with the center (10a) of the light collection target position and fixed to the base (38). Then, a solar light tracking sensor (12) is fastened to the rear end part of the guide (35) in place of the optical telescope (47).
摘要:
The direction of a solar light tracking sensor is set easily with high accuracy. A solar light tracking guide (35) is installed on the optical axis (11) of the reflected light collected by a heliostat (2). An optical telescope (47) is so attached to the rear end part of the guide (35) as to be aligned with the guide axis (C) of the guide (35). The posture of the solar light tracking guide (35) is so adjusted that a cross provided in the field of view of the telescope (47) agrees with the center (10a) of the light collection target position and fixed to the base (38). Then, a solar light tracking sensor (12) is fastened to the rear end part of the guide (35) in place of the optical telescope (47).
摘要:
An engine control apparatus includes a hydraulic pump driven by an engine, a hydraulic actuator to which pressure oil discharged form the hydraulic pump is supplied, an operation lever configured to operate the hydraulic actuators, a detection means detecting operation amounts of operation lever means, an target flow rate calculation unit (50) calculating an target flow rate of the hydraulic pump based on the operation amount of the operation lever, a first target speed calculation unit (61) calculating a first target speed of the engine according to the target flow rate, a pump output limit value calculation unit (500) limiting the maximum target speed of the engine in an relief operation according to a load pressure of the hydraulic pump, a fourth engine target speed calculation unit (63).
摘要:
An electronic timepiece with a generator function, including a generating means, a storage means that stores electrical energy produced by the generating means, a timekeeping control means that is driven by the electrical energy stored in the storage means, a time display means that is controlled by the timekeeping control means and displays time, a power generation detection means that detects the power generation state of the generating means, and a power generation display means that displays the power generation state based on a detection result signal output from the power generation detection means. The power generation detection means includes a hand and an actuator that drives the hand in both forward and reverse directions.
摘要:
An electronic timepiece with a calendar display function that drives a piezo-electric actuator to drive a rotation of a piezo-electric rotor, and stops the drive of the piezo-electric actuator when the amount of the piezo-electric rotor advances is detected by a spring switch. Photoreflectors are used for day detection accomplished using gears having a small speed reduction ratio relative to the piezo-electric rotor, and spring switches are used in month detection and year detection.