62results about How to "Increase the swept area" patented technology

The invention relates to a method for lengthening a wind power blade, in particular to a method for connecting a new tip to the tip of the wind wheel blade of the conventional wind driven generator. The invention comprises a blade tip lengthened connecting structure and a process scheme. According to the wind wheel blade tip lengthening scheme for the wind driven generator, the lengthened blade has a safe structure, and the method is simple in process, low in cost and high in implementation feasibility.

The invention discloses a detachable H-shaped vertical axis wind power generation device and a work method thereof, and belongs to the wind power generation technology field. The detachable H-shaped vertical axis wind power generation device comprises a vane, a vane wheel rotation shaft, a connection rod, an electric generator and a bottom seat. The vane, the vane rotation shaft and the connectionrod which are of multi-segment telescopic structure are used, and the telescopic length of the vane, the vane rotation shaft and the connection rod is controlled according to actual air conditions, and therefore efficient capturing of wind energy in a large wind speed range is achieved. Furthermore, all the components adopt the detachable structure, and therefore the detachable H-shaped verticalaxis wind power generation device is simple and rapid to assemble and disassemble, and convenient to store and carry, can be rapidly structured in any place, and meets urgent power usage demands.

An air conditioner with four air outlets is mainly composed of an outer shell, two cross-flow fans, two evaporators and a controller. The two fans and the two evaporators are symmetrically arranged in the outer shell, and through flow dividing of a flow dividing board, air obtained after heat exchange is blown to the interior of a room from the four air outlets in the outer shell, the air sweeping area is larger, and the temperature adjusting capacity is higher.

The invention discloses a blade tip improvement or repairing method of a wind turbine blade. The blade tip improvement or repairing method includes the following steps that a blade tip lengthened section divided into two parts of shell bodies in the axial direction is fixed to the blade; additional reinforcement is carried out on the splicing area of the two parts of shell bodies, so that a new blade tip is formed. The blade tip of the original blade is lengthened or the damaged blade tip of the original blade is repaired, so that the sweeping area of the blade is increased, the generation efficiency of a wind turbine is improved, the economic benefits are obvious, the implementation is simple, and the improvement cost is low. The invention further discloses a blade tip lengthened section structure of the wind turbine blade for improving or repairing the original blade tip. The blade tip lengthened section structure comprises two parts of shell bodies divided in the axial direction. The two parts of shell bodies include the front edge shell body and the rear edge shell body which are spliced and bonded into a whole, and a new blade tip is formed. Or the two parts of shell bodies include the windward side shell body and the leeward side shell body which are spliced and bonded into a whole, and a new blade tip is formed.

The invention discloses a low-cost floating yaw type anti-typhoon wind power generation device and a typhoon resisting method, and provides a low-cost structure configuration and control strategy for improving the anti-typhoon capacity and reducing the degree of typhoon, and the characteristic that a floating system can freely rotate on a water body without a bearing and a rail is utilized. A set of expensive yaw bearing and control system of a traditional fan is omitted, the cost of a tower drum and a transmission chain structure can be further optimized through the self-adaptive directional stress state, and a structure that blades of a wind wheel can be put down and folded together under the typhoon condition is constructed. And in combination with control of the yaw system and the downwind blowing effect of wind power, all the blades point to the downwind direction in the typhoon environment, the upsetting moment of the wind power device is balanced, and therefore the typhoon disaster resisting capacity is greatly improved, and the safe operation capacity of a large fan within the 30-year service life is guaranteed.

The invention discloses a device for cleaning rainwater on a rearview mirror by using automobile exhaust waste heat. The device comprises a first ventilation pipe, a gas storage box body and an air port swing control device; the first ventilation pipe is fixedly arranged above the middle of an exhaust conveying pipe, and an automatic air interchanger is arranged in the first ventilation pipe; thegas storage space and a temperature adjusting device are arranged inside the gas storage box body; the gas storage box body is in ventilation connection with the first ventilation pipe; a gas outlet device is arranged at the front end of the gas storage box body; and the air port swing control device is arranged on the rearview mirror and is in ventilation connection with the air outlet device. Automatic collection of tail gas can be achieved, and the treated tail gas is used for cleaning rainwater on the automobile rearview mirror.

The invention relates to a telescopic wind turbine blade. The telescopic wind turbine blade comprises a blade root telescopic part, a sealing partition plate, an air cylinder barrel, a pressure regulating piston and a driving mechanism, wherein the blade root telescopic part is a root cylinder section of wind turbine blade; the sealing partition plate is used for sealing the bottom end of the blade root expansion part so as to enable the blade root telescopic part to form a piston form; the two ends of the air cylinder barrel are opened, the air cylinder barrel is fixed on a hub of the wind turbine, and the blade root telescopic part is assembled in one end of the air cylinder barrel; the pressure regulating piston is arranged at the other end of the inner cavity wall of the air cylinder barrel, so that the sealing end part of the blade root telescopic part and the pressure regulating piston define a sealing space in the interior of the air cylinder barrel; and the driving mechanism isused for driving the pressure regulating piston to extend and contract in the other end of the air cylinder barrel so as to adjust the pressure in the air cylinder barrel, and the blades of the windturbine realize the expansion and contraction in the rotating process. By adopting the structure, the blades can be stretched and retracted for a limited stroke along with the rotation period, so thatthe wind catching load is limited, and the load of the blades is balanced, thereby reducing the alternating load.

The invention discloses an individual pitch control device for a vane. The individual pitch control device comprises a vane root, an air cylinder barrel, a pressure regulating piston, a driving mechanism and a pitch control mechanism, wherein the vane root is cylindrical and an opening in the end part of the vane root is sealed in a piston form; the air cylinder barrel is fixed to a wheel hub of awind turbine, two ends of the air cylinder barrel are opened, and the vane root and the air cylinder barrel are in hermetical sliding fit; the pressure regulating piston is arranged at the other endof an inner cavity wall of the air cylinder barrel; the driving mechanism is used for driving the pressure regulating piston to adjust the pressure in the air cylinder barrel; and the pitch control mechanism comprises a spiral driving part connecting the vane root and the air cylinder barrel, and when the vane root shrinks in an inner cavity of the air cylinder barrel, the spiral driving part automatically drives the vane to reverse relative to the air cylinder barrel. The individual pitch control device can inhibit an alternating load reliably with a low cost.

The invention provides an indoor unit of an air conditioner and the air conditioner. The indoor unit of the air conditioner comprises an air conditioner bottom shell (1) and a spiral casing (3), wherein the air conditioner bottom shell is provided with an air conditioner vent hole (2); the spiral casing (3) is positioned in the air conditioner bottom shell (1) and forms an air duct of the indoor unit of the air conditioner; furthermore, the spiral casing (3) can move so as to extend out of the air conditioner bottom shell (1) at the air conditioner vent hole (2). The air conditioner provided by the invention can effectively enlarge a wind sweeping angle and a wind sweeping area, thus improving the indoor comfort degree; the technical problems that the existing air conditioner is small in air supply angle, short in air supply distance and poor in complete machine comfort are effectively solved.

The invention discloses a variable pitch device for a wind turbine. The variable pitch device comprises a blade root, an air cylinder barrel, a pressure adjusting piston and a driving mechanism, wherein the blade root is a column-shaped body; an opening in the end of the blade root is sealed; the air cylinder barrel is used for fixing a hub of the wind turbine; two ends of the air cylinder barrel are opened; one end of the wall of an inner cavity of the air cylinder barrel is matched with the column-shaped body of the blade root by a spiral groove and a spiral guide rail structure; the pressure regulating piston is arranged at the other end of the wall of the inner cavity of the air cylinder barrel, and a sealing space is defined by a sealing end of the blade root and the pressure adjusting piston in the air cylinder barrel; and the driving mechanism is used for driving the pressure adjusting piston to expand and retract in the other end of the air cylinder barrel to further adjust the pressure in the air cylinder barrel; a blade of the wind turbine drives the blade root to expand and retract in the inner cavity of the air cylinder barrel under the self gravity and the air pressure action in the air cylinder barrel in the rotating process, and when the blade root expands and retracts, the spiral groove and the spiral guide rail structure automatically drive the blade to twist. The variable pitch device can reliably inhibit alternating load.