151results about How to "Increase the windward area" patented technology

The invention discloses an efficient and compact pre-cooling heat exchanger for a pre-cooling gas sucking type engine. The efficient and compact pre-cooling heat exchanger for the pre-cooling gas sucking type engine comprises a pre-cooling heat exchanger body in the shape of a similar cylinder; the cross section of the similar cylinder is in the shape of a ring different in diameter; the longitudinal section of the similar cylinder is formed by two symmetrically arranged arc segments; the center angle of each arc segment is 45 degrees; the pre-cooling heat exchanger body comprises a cold flow outlet pipe, a cold flow inlet pipe and a plurality of heat exchanging pipes; each heat exchanging pipe is in the shape of an arc; the arc-shaped center angle of each heat exchanging pipe is 45 degrees; and the heat exchanging pipes are distributed into the similar cylinder in a crossed manner. The efficient and compact pre-cooling heat exchanger for the pre-cooling gas sucking type engine can have the engineer realizability on the premise that the heat exchanging effect is guaranteed, so that air incoming flow in front of a gas compressor can be pre-cooled, the high temperature over-running problem of gas compressor blades is solved, the engine thrust is increased, the flight envelop is extended, the welding difficulty is effectively reduced, the frosting blockage problem is effectively solved, the engineer realizability is achieved under the current technology, and after the efficient and compact pre-cooling heat exchanger for the pre-cooling gas sucking type engine is applied to the pre-cooling gas sucking type engine, the engine performance can be substantially improved.

The invention relates to a horizontal luffing grab portal crane, including a four-bar linkage level luffing boom system, a travelling mechanism and a gantry structure. The crane is characterized in that: a luffing mechanism comprises a triple screw, a screw pedestal and an electric transmission mechanism. The outside of the triple screw is provided with a telescopic cover, the inside of the screw pedestal is equipped with a sleeve with nuts, and two ends outside the sleeve are provided with bearings in the screw pedestal. The electric transmission mechanism comprises a motor, a driving gear and a brake apparatus. The end of the triple screw is hinged to a boom, and the luffing mechanism is equipped with a speed adjustable control system. The four-bar linkage boom system and a gantry beam are both girder construction which employs a T-shaped structure and a rectangular pipe. The T-shaped structure is a main chord member, and the rectangular pipe as a web member is welded on a web member gusset plate. In the blanking process, the T-shaped structure and the web member gusset plate are integrated through numerical control cutting. The crane of the invention has high operating cycle frequency which can reach 6 million times, high luffing speed, smooth running of grab bucket, high operating efficiency and long service life.

The invention provides a high-power wind-gathering airflow-guiding air operated machine, which includes a machine base, a main shaft, an impeller, wind-gathering covers, a rear helm, and a power outputting wheel. An annular airflow-guiding bracket around the peripheral outline of the impeller is arranged outside the impeller, the center of the upper cover of the airflow-guiding bracket is rotationally connected with the main shaft, and the center of the lower cover of the airflow-guiding bracket is rotationally connected with the machine base. The wind-gathering covers are two covers which are respectively arranged on the outer sides of the airflow-guiding bracket, and the two covers extend towards the rear and the two wings. The rear helm is arranged along the back and forth direction, the front end of the rear helm is hinged with the upside of the airflow-guiding bracket through a hinge shaft horizontally arranged. The invention integrates manifold advantages, can gather maximum wind power, can guide the airflow to form tornado type rotary airflow, can ensure that the rotor blades receive force continuously in 360 DEG C to accelerate, can generate electricity normally in 2-3 DEGC wind force, can control the wind volume, and can stabilize the rotation speed. The rear helm which can turn for 180 DEG C can resist the typhoon, and is safe and reliable. Large-diameter inertial wheel can cushion the impact of the blasts, and can enable the impeller to operate stably.

The invention discloses a vehicle drop protecting system and a vehicle drop protecting method. The vehicle drop protecting system is used for preventing a vehicle and passengers from being injured when the vehicle drops down; and the vehicle drop protecting system comprises a parachute, an airbag and an executing module, wherein the parachute is arranged on a vehicle roof; the airbag is arranged on the lower surface of a vehicle floor; and the executing module is used for opening the parachute and inflating the airbag when the vehicle drops down. The vehicle drop protecting system opens the parachute on the vehicle roof and the airbag below the floor when an automobile runs out of a road due to a too high speed and drops down, the airbag below the floor acts on the ground, the airbag is compressed, and at the moment, a one-way valve is opened, air in the airbag is released out gradually, so that the vehicle can land steadily, the impact of the ground on the vehicle is relieved, and the safety of the vehicle and the passengers is effectively protected.

The invention discloses an automatic fire extinguishing device suitable for a small power distribution cabinet. The device comprises a fixing box. A cylindrical barrel is fixedly mounted on the innertop wall of the fixed box. The bottom end of the cylindrical barrel is fixedly connected with a conical barrel. The bottom of the cylindrical barrel penetrates through the bottom wall of the fixed boxand extends to the outer side of the fixed box. A plurality of first storage boxes, a plurality of second storage boxes and a plurality of heat-resisting pipelines are symmetrically arranged on the inner side wall of the fixing box, each first storage box is provided with an opening mechanism and communicates with the corresponding heat-resisting pipeline through the opening mechanism, and an isolation mechanism is arranged in the cylindrical barrel. The fire extinguishing device is reasonable in structure, easy to install and suitable for small power distribution cabinets of various specifications. The device can automatically extinguish fire at the fire occurrence position at the initial stage of fire or in the smoldering state of an object, does not need manual monitoring, omits the process that managers discover the fire and find fire extinguishing device, and can remarkably reduce adverse effects caused by the fire.

The curved heat exhanger mainly includes heat exchanging tubes and heat exhanging fins, the windward side and lee side of the curved heat exchanger are made into the form of curved surface, and the circular arc of windward side and circular arc of lee side of the heat-exchanging fin are identical in arc centre, and coincided with axle centre of through-flow wind wheel of indoor machine of air-conditioner so as to ensure that the distances from all the place positions of circular arc to through-flow wind wheel are identical. The described heat-exchanging tubes are divided into two rows of straight tubes, between tube and tube they are connected by means of pipe connector. Said invented heat exchanger can improve air intake condition and air intake direction.

The invention belongs to the microrobot field, and concretely relates to a two-dimensional flutter miniature flapping flight robot mechanism. The miniature flapping flight robot mechanism comprises wings, internal and external flexible transmission parts, a transmission mechanism, a body, a body rotation shaft, an empennage, a motor and a control plate, wherein one end of the body rotation shaft is arranged on the body, the other end of the body rotation shaft is hinged to the internal and external flexible transmission parts, the internal and external flexible transmission parts are connected with the wings respectively, and the empennage is arranged on the body; the motor is arranged on the body and is in electric connection with the control plate on the body, one end of the transmission mechanism is connected with the output shaft of the motor, and the other end of the transmission mechanism is connected with the internal and external flexible transmission parts respectively through connection rods; and the internal and external flexible transmission parts are respectively provided with a flexible semi-ring, and each of the internal and external flexible transmission parts and the wings connected thereby has a freedom degree for flapping around the body rotation shaft in an up and down manner and a freedom degree for rotating with the flexible semi-rings. The miniature flapping flight robot mechanism which adopts a passive submissive hinge to realize a two-dimensional flutter function has the advantages of reduction of the complex degree of the mechanism, and improvement of the flight efficiency.

A vertical-axis wind turbine generator system with multi-layer wings and double swing vanes comprises a power generator, at least two layers of wind rotors and a frame mechanism. The at least two layers of wind rotors are installed on the frame mechanism sequentially from bottom to top. Wind pressure of the multiple layers of wind rotors is continuous and balanced, the torque of the wind rotors can be transferred to the power generator through the frame mechanism, and wind energy utilization rate and power generation capacity are high. Each vane and a corresponding supporting rod enables an upper-section vane and a lower-section vane of each vane to be kept vertical within a rated wind speed to obtain a maximum windward area by the aid of a first pin, a compression spring and a steel wire rope, the wind rotors rotates rapidly when run into strong wind, the upper-section vanes and the lower-section vanes form included angles with the supporting rods through the steel wire ropes and the compression springs, the rotation outlines of the whole vanes are V-shaped, and accordingly the windward area of a wind rotor group can be changed to adjust power output of the whole vertical-axis wind turbine generator system. The vertical-axis wind turbine generator system has the advantages of stability in operation, simplicity in structure, wide wind speed application range, high utilization rate of wind energy, long service life of the power generator and the like.

The invention provides a spiral heat exchanger and a manufacturing method thereof and an air conditioner. The spiral heat exchanger comprises a heat exchange pipe and a plurality of fins, the heat exchange pipe is spirally wound to be cylindrical, the centers of the fins are provided with mounting holes matched with the heat exchange pipe, and the outer portion of the heat exchange pipe is sleeved with the fins at intervals through the mounting holes. Air can be sucked around the spiral heat exchanger; compared with a mode that a traditional plane-shaped heat exchanger can only suck air with one side, the windward area of the spiral heat exchanger is increased by 2-3 times, and integral heat exchange efficiency of the spiral heat exchanger is greatly improved; in addition, according to the spiral heat exchanger, a semicircular connecting pipe does not need to be welded to the heat exchange pipe, the bending process and cost of the semicircular pipe are reduced, the technical risk of refrigerant leakage caused by poor pipe opening welding is avoided, the manufacturing of the spiral heat exchanger becomes simple and convenient, product quality is effectively guaranteed, and product production efficiency is improved.

The invention provides a novel intelligent antenna and a method for realizing the same. The method comprises the following steps that: antenna units which are used to form the intelligent antenna are randomly arranged according to random distance without needing to be equidistantly arranged according to the distance not exceeding half wavelength; the figuration of receiving a wave beam is realized by measuring the amplitude and the phase of a signal received by each receiving chain circuit and synthesizing the signal received by each chain circuit in a needed mode. The figuration of transmitting the wave beam is realized by focusing the signal transmitted by each antenna unit on a terminal. A multi-antenna array is controlled by software to be operated into an intelligent antenna, a diversity antenna or a multi-input and multi-output (MIMO) antenna. The novel intelligent antenna does not need mounting a transceiver especially for calibration and a special calibration chain circuit. A multifunctional multi-antenna system realization method is provided for wireless base stations of 3G, beyond 3G and 4G mobile communication networks.

The invention discloses a roof steering follow-up air resistance retarder comprising a control system, a fixed support and at least one sub-retarder. Each sub-retarder comprises a wind resisting blade, a steering follow-up mechanism, a transmission mechanism and a locking mechanism, wherein the steering follow-up mechanism is used for driving the wind resisting blade to perpendicularly rotate in relation to a car roof and mounted on the fixed support, the transmission mechanism is used for driving the wind resisting blade to horizontally swing in relation to the car roof and mounted on the steering follow-up mechanism, the transmission mechanism comprises rotating shafts and a motor, the rotating shafts are rotatably supported on the steering follow-up mechanism, the motor is movably connected with the rotating shafts, one wind resisting blade is fixedly connected to each rotating shaft, the locking mechanism disposed on the rotating shafts is used for limiting the swing angles of the rotating shafts which horizontally swing in relation to the car roof. The roof steering follow-up air resistance retarder has the advantages that the roof steering follow-up air resistance retarder has the steering follow-up function, a car is retarded by means of air resistance, thermal load of a frictional brake during vehicle continuous braking and continuous downhill running is distributed effectively, heat fading is prevented, vehicle driving safety is improved, and wear of the frictional brake is reduced.

The invention provides an environment-friendly efficient intelligent wind power generation system. Wind shields are arranged, and an air guide groove is formed between the two wind shields to guide wind to flow out of the side face, so that the wind energy utilization rate is better increased, and a larger torque force is also achieved. Wind from the side face is shielded, a horizontal transmission shaft is driven to rotate under the action of wind force, and the wind power utilization efficiency is further improved. In addition, the system can adapt to any-time changes of the wind direction.Wind shields capable of partially covering side frames are further arranged, so that the wind which is inclined towards the side face is conveniently blown into impellers, the impellers are driven torotate, and the wind power conversion efficiency is improved; and a wind adjusting plate is arranged, the counteractive wind is blocked and prevented from entering the impellers, the useless work is prevented, and the wind power conversion efficiency is improved. The wind power generation system is low in manufacturing cost, small in occupied space, convenient to transport, more environment-friendly and low in noise, does not cause damage to flying birds near a wind field and can generate electricity through breeze, and the generating capacity under the same wind field condition is 3-6 times that of the horizontal axis.

The invention provides a round tube web girder and a manufacturing method thereof and belongs to a main girder structural style applied to bridge construction. According to the structure, a traditional girder type thin-wall web structure is replaced with a hollow round tube (steel tube or reinforced concrete tube), and an upper frange plate and a lower frange plate are connected with the hollow round tube into a whole through connecting pieces. The structure is suitable for an upper structure of a simply supported girder bridge with a small span, and can also be used as a girder of a cable system bridge or a girder type component, both aesthetic and capable of bearing force, in a building structure. The structure can be constructed in a factory prefabricating and on-site assembling mode. The working period can be effectively shortened. Due to the fact that light can pass through the hollow part of the round tube, the structure has a unique aesthetic effect. Due to the adoption of the horizontally through structural style, the windward area of the structure is effectively reduced, and the negative influence of wind power on the structure is reduced. The round tube can be made to be a single-layer style or a multi-layer style according to aesthetic or force-bearing requirements, so that the diversified appearance effect and mechanical property are achieved.

The invention discloses an integrated swimming pool dehumidifier. The integrated swimming pool dehumidifier is divided into the two layers, an air exhaust channel is formed in the upper layer, and an air supply channel is formed in the lower layer. A first air exhaust condenser and a second air exhaust condenser are arranged in the air exhaust channel. Superfluous heat generated during operation of the dehumidifier is exhausted through the first air exhaust condenser and the second air exhaust condenser in a condensed mode. The air exhaust channel is formed in the upper layer of the integrated swimming pool dehumidifier, so that the advantage that an outdoor unit can be omitted is achieved. In addition, the first air exhaust condenser and the second air exhaust condenser in the air exhaust channel are two communicating channels arranged in parallel, so that the windward area is increased, and the structure size of the air exhaust channel is reduced.

The invention discloses a wall-mounted-type indoor unit of an air conditioner, wherein air can be introduced into a heat exchanger from different angles. The wall-mounted type indoor unit of the air conditioner comprises a shell, the heat exchanger and a wind wheel, wherein an air outlet and an air inlet are arranged on the shell, an air duct is formed between the air outlet and the air inlet, the heat exchanger and the wind wheel are arranged in the air duct, and the heat exchanger is of an arc body structure. The wall-mounted indoor unit of the air conditioner, with such a structure, not only has high heat-exchange efficiency and low noise, but also is beneficial to smooth flowing-down of condensed water at the same time.

The invention discloses an adjustable stability improving device of a hypersonic aircraft. The device comprises first tail skirts, second tail skirts, a first shaft sleeve, a second shaft sleeve and acenter shaft, wherein the first tail skirts and the second tail skirts are formed by a plurality of partially overlapped scales in a surrounding mode, and the scales of the first tail skirts are movably connected with the tail end of the aircraft and surround the aircraft by a circle; the scales of all the first tail skirts are connected with the first shaft sleeve through a framework; the scalesof the second tail skirts are movably connected with the tail ends of the scales of the first tail skirts in the axial direction of the aircraft, and the scales of all the second tail skirts are connected with the second shaft sleeve through a framework; the center shaft is sequentially sleeved with the first shaft sleeve and the second shaft sleeve in the axial direction of the aircraft, and thetension angles of the first tail skirts and the second tail skirts are changed freely along the central axis, so that the flight stability of the hypersonic aircraft is adjusted.

The invention relates to a low-temperature carbon-based combined desulfurization and denitrification flue gas system and a use method thereof. The system comprises a first reactor, a second reactor and a third reactor and the reactors have the same structures. Each one of the first reactor, the second reactor and the third reactor comprises a central carbon-based bed, left and right air distribution grilles and left and right gas collection tanks in the outer side. The carbon-based bed is filled with an activated carbon material. The system utilizes the three same reactors and has functions of fine desulfurization, denitration and regeneration. The fine desulfurization and denitratio processes are connected in series and are connected to the regeneration process in parallel and the processes are carried out simultaneously so that in-situ regeneration is really realized. The reactor comprises the central carbon-based bed, left and right air distribution grilles and left and right gas collection tanks. The bed has a large windward area so that uniform gas distribution in the work and regeneration processes is guaranteed and a floor space is reduced. The system further improves the desulfurization and denitrification performances of the activated carbon material.

The invention discloses a vertical windmill for fully utilizing bilateral wind energy. A vertical tower is provided with force arms capable of rotating horizontally by layering, and the rotating directions of the force arms of adjacent layers are opposite. Planar paddles can turn over around the force arms, rotate vertically into the wind and rotate horizontally against the wind. Once the force arms rotate for a cycle, the paddles turn over twice, and the turnover is finished by forcing an internal-tooth helical wheel to shift by means of strong rotating thrust of the force arms and interaction of control ring plates so as to push an external-tooth helical wheel to rotate by an angle of 90 degrees. Under the adjustment of a servo tracking device, the windmill can ensure that the paddles turn over at proper time and ensure that the force arms of the adjacent layers are staggered in an angle of 45 degrees when the paddles are in a turnover direction. Elastic blades arranged on the paddles have the wind release function and keep normal running when encountering strong wind. The windmill is free from auxiliary starting during running and can rotate positively or negatively during starting. The vertical windmill has the characteristics of novel structure, simple and convenient manufacture, large windward area, small upwind resistance, full utilization of bilateral wind energy and extremely high wind energy conversion efficiency, and is applicable to large-sized wind generating farms.

The invention relates to the technical field of bird-scaring units and discloses a bird scaring device for a scientific research test field. The bird scaring device comprises an inserted rod, whereinheat energy tubes are uniformly arranged at the middle part of the inserted rod, a dampproof box is fixedly mounted at the left side of the upper part of the inserted rod, a player is fixedly connected with the upper wall of the internal cavity of the dampproof box, a shaft sleeve is fixedly mounted at the upper end of the inserted rod, a rotary shaft is rotatably connected with the upper part ofthe shaft sleeve, a turntable is arranged on the rotary shaft, closed slots are formed in the turntable, symmetric cross rods are arranged on the rotary shaft, windward plates are uniformly arranged among the cross rods, and magnet sheets are arranged on the windward plates. According to the bird scaring device for the scientific research test field, through arranging the windward plates which arealways windward, power is generated when the windward plates rotate, the windward plates are matched with the heat energy tubes to heat up and generate vapor, the vapor spreads an offset pipe and ismatched with action of the player, and thus, the effect of better scaring birds by using self-produced electric power and better scaring the birds in case of no electric power is achieved.

The invention provides a rising swing blade type vertical-shaft wind generating set, wherein a hinged seat is arranged at one ends of support rods; the hinged seat is hinged to a rotating support through a first pin shaft and the axial direction of the first pin shaft is perpendicular to the length direction of the support rods; fan blades are hinged to the other ends of the support rods through a hinged mechanism; a buffer cushion is arranged between the rotating support and the support rods. Compared with the prior art, the support rods are hinged to the rotating support through the hinged seat and the first pin shaft, the stability of the vertical-shaft wind generating set is improved by virtue of the gyroscopic effect, and in the meantime, the buffer cushion made of an elastic material is arranged between the rotating support and the support rods of the rising swing blade type vertical-shaft wind generating set; the buffer cushion causes all the support rods to be located within the same horizontal plane, and as a result, the stability of the whole set is effectively guaranteed and the output power of the generator is kept stable. In addition, as the fan blades are hinged to the support rods through the hinged mechanism, the windward area of a wind wheel can be adjusted according to the wind power; the rising swing blade type vertical-shaft wind generating set is capable of generating power normally even at strong wind; the rising swing blade type vertical-shaft wind generating set is good in strong wind resistance, simple in structure without tail vane, material-saving and low in composite cost.

The invention relates to a vertical-axis wind turbine, specifically to a vertical-axis wind turbine in which a wind turbine impeller 10 is mounted within a volute 11; the exterior of an airflow channel inside the volute 11 is connected to a windward current collector 3 that can enlarge windward area, all the airflows of windward face are converged to the airflow channel inside the volute 11, the airflows in the airflow channel inside the volute 11 are used for driving all the blades of the wind turbine impeller 10 so that driving torque of the wind turbine is much higher than that of general vertical-axis wind turbine, and meanwhile, requirement of start-up wind speed of the wind turbine are greatly reduced, the start-up wind speed is lower than 2m/s and coefficient of utilization of wind energy is raised to above 0.8, thus realizing maximization of the efficiency of the wind turbine.