53results about How to "Play the role of rectification" patented technology

The invention relates to a rainwater discarding / afflux device which comprises a discarding well and a water storage pond, wherein a water inlet pipe, a water outlet pipe and a discarding pipe are arranged inside the discarding well; the water inlet pipe is communicated with a rainwater pipe network; the water outlet pipe is communicated with the water storage pond; the discarding pipe is communicated with a municipal sewage pipe network; and the rainwater discarding / afflux device is also provided with an automatic on-off electric control valve of a liquid level control signal and a PLC (programmable logic controller ) system. The rainwater discarding / afflux device has the characteristic of high automatic operation; the problems of the automatic on-off and the discarding time control of a discarding valve are solved effectively; the design plays the role of rectification; the advantages that traditional overflow well and rectifying well discharge the precontamination rainwater in a mode of overflow are integrated; and the disadvantages that the traditional overflow well and rectifying well cannot discard the rainwater of fixed quantity at regular time are abandoned.

The invention relates to a cyclone-type waste plastic crushing, sorting, and washing system. Along a material delivery direction, the system comprises the following components arranged sequentially: a crusher used for crushing waste plastic, a flotation tank used for sorting waste plastic pieces according to density differences of flotation medium and the waste plastic pieces; and one or more than two serially connected cyclone sorting and washing devices used for carrying out cyclone sorting and waste plastic piece washing through a fluid medium. The invention also relates to a cyclone-type waste plastic crushing, sorting, and washing method. According to the system and the method, the structure is simple, waste plastic treatment process continuity and automation are realized, treatment efficiency and treatment effect are effectively improved, and waste plastic automatic sorting and washing are realized. The system and the method belong to the technical field of waste plastic recovery.

The invention provides a thruster of a hydrogen-oxygen catalytic ignition mini rocket, comprising a catalytic ignition device and a combustor device, wherein the catalytic ignition device comprises an end socket, a catalytic cylinder and a catalytic cylinder baseplate; and the combustor device comprises a graphite lining, a graphite precombustion chamber, a precombustion chamber sleeve, a nozzle steel jacket and a tungsten-doped copper nozzle. The thruster is used for realizing hydrogen-oxygen catalytic ignition which can be used for realizing the purpose of repeated ignition. Hydrogen inletsare uniformly distributed at the back semi-section of the combustor in the thruster in the circumferential direction, thus adjusting the hydrogen-oxygen mixing ratio and achieving an afterburning effect. The thruster is simple in structure and ensures that parts can be disassembled and replaced easily.

The invention relates to a novel vortex-preventing cone for water feeding of a water pump, belonging to the technical field of hydraulic engineering. The vortex-preventing cone is arranged under a suction flared pipe nozzle of the water pump, the tip of the vortex-preventing cone is just opposite to the center of the suction flared pipe nozzle of the water pump, vortex-preventing teeth are arranged on the conical surface of the vortex-preventing cone, and the plane area of the vortex-preventing cone is more than the area of the suction flared pipe nozzle of the water pump. The uneven vortex-preventing teeth are arranged on the conical surface of the vortex-preventing cone, and the section shape of a rack of the vortex-preventing teeth is rectangular or triangular or trapezoidal. A cone axial line of a flat cone and a pipe core line of a suction flared pipe of the water pump are arranged on the same straight line. The invention has the advantages of simple and scientific structure and reasonable design; the primary basis of a vortex strip is destroyed from the starting point of the vortex strip, circular quantity of water flow in a water inlet region can not accumulate, and the condition of generating high-intensity vortexes is deprived, the water flow in the water inlet region is smooth, the pressure fluctuation is reduced, and the pump vibration is avoided. The invention is suitable for inlets of various water pumps, ensures no vortex or corresponding hydraulic vibration, reduces hydraulic loss and improves properties of pumps.

The invention discloses a single-stage centrifugal pump capable of achieving self balance of axial force. The single-stage centrifugal pump comprises a pump body, an impeller assembly, a pump shaft and a shaft sleeve. One end of the pump shaft extends into the pump body. The pump shaft is in sealing connection with the pump body through the shaft sleeve. The pump shaft is in clearance fit with the shaft sleeve. The impeller assembly is installed at the tail end, extending into the pump body, of the pump shaft and is in clearance fit with an impeller installation cavity inside the pump body. The impeller assembly comprises an impeller, a front impeller cover plate and a rear impeller cover plate. The impeller is installed in a cavity which is defined by the front impeller cover plate and the rear impeller cover plate. A circle of rear impeller ring which is coaxial with the impeller is arranged on the outer surface of the rear impeller cover plate. The inner diameter of the rear impeller ring of the rear impeller cover plate is greater than the outer diameter of a front impeller ring of the front impeller cover plate. Grooves are formed in the outer surface of the rear impeller ring. The single-stage centrifugal pump has the beneficial effects that internal flow of the impeller is stable; vibration of the centrifugal pump is reduced; the reliability and efficiency of the centrifugal pump are improved; the axial force balance effect is effectively improved; generation of the cavitation phenomenon can be inhibited through a jet hole of the pump shaft.

The invention relates to a pipeline flow boundary layer damping device, particularly to a boundary layer damping device applied to a conveying pipeline with larger wall viscosity resistance and turbulence intensity. Under the condition that the conventional pipeline is not treated with special processing, a thin wall inner pipe is mounted inside the pipeline, and small holes are formed in the pipe wall of the inner pipe; a gradually shrinking spray pipe is arranged at the fluid inlet of the inner pipe, so that the purpose of forming jetting on the wall surface of the inner pipe is achieved, and the viscosity resistance loss is reduced. For turbulence flow, the boundary layer damping device further has the functions of attenuation of turbulence loss in the pipe diameter direction and rectification. In turbulence flow, when the speed in the pipe diameter direction is higher than the jetting speed, liquid enters an interlayer, when the speed in the pipe diameter direction is not greater than the jetting speed, the jetting effect can be played, so that impact rebound of the fluid on the pipe wall can be reduced, the radial velocity of the mainstream can be quickly offset, and the turbulence is rectified into laminar flow.

The invention relates to a flue gas pollutant purifying tower. The flue gas pollutant purifying tower comprises a purifying tower body and members in the purifying tower body, wherein the purifying tower body is provided with a cavity which penetrates through the whole purifying tower body; the cavity is used as an air ventilating area, the air ventilating area comprises a gas inlet flue, a gas chamber and a gas outlet flue, and the gas chamber is separated into a gas inlet chamber and a gas outlet chamber by a separating plate; a purifying agent area is arranged in the purifying tower body, is arranged around the air chamber, and is used for separating the purifying tower body into the air ventilating area, the purifying agent area and a flue area from interior to exterior; the purifyingagent area comprises porous plates and a purifying agent, and the purifying agent is positioned in an interlayer formed by the porous plates; a louver wing plate is arranged at the outer side of eachporous plate at one side, in contact with the gas inlet chamber, of the purifying agent in an incline-up way; a wing plate is arranged at the inner side of the interlayer formed by the porous plates in an incline-down way. The flue gas pollutant purifying tower has the advantages that by improving the structure of the purifying tower, the structure is simple, the land occupation area is small, theflue gas is uniformly dispersed in the tower, the flowing drag is small, the contact area between the purifying agent and the flue gas is large, the utilization rate is high, the removal efficiency is obviously improved, and the considerable economic benefit is realized.

The invention discloses an electrically-assisted heating device of an air conditioner, which is arranged at the upper side of an air outlet of a spiral case fan in a shell of an indoor unit of the air conditioner. The electrically-assisted heating device is in a grid type structure consisting of a plurality of electric hot plates and a plurality of fins which are longitudinally and horizontally crossed vertically and is provided with quadrate through holes. The electric hot plates are horizontally arranged at intervals, and the fins are longitudinally arranged at intervals so as to form the grid type structure. In the electrically-assisted heating device of the air conditioner, the electrically-assisted heating device is made into the grid type structure so as to play the role of rectification, and airflow coming out of the spiral case of the fan can exchange heat sufficiently and evenly with the electrically-assisted heating device. Meanwhile, because the electrically-assisted heating device is provided with a grid hole, impact noise generated by the indoor unit of the air conditioner due to the electrically-assisted heating device is completely avoided.

The invention discloses a novel piezoelectric valveless micromixer, which comprises a pump body and an upper matrix fixed above the pump body. A piezoelectric vibrator is fixed right above a matrix pump cavity; the pump body is provided with a pump inlet mixing unit, a pump body cavity, an outlet mixing unit and an outlet buffer cavity; a pump inlet one and a pump inlet two are communicated with the inlet mixing unit; the inlet mixing unit is communicated with the pump body cavity; the pump body cavity is communicated with the outlet mixing unit; the outlet mixing unit is communicated with an outlet buffer cavity; the outlet buffer cavity is communicated with a pump outlet; the pump body cavity is communicated with the matrix cavity; the inlet mixing unit and the outlet mixing unit are both composed of (i) n ( / i) basic mixing units, which are connected smoothly end to end; and the contour of a horizontal axis section of a single basic mixing unit comprises four logarithmic spiral lines and straight lines, wherein the four logarithmic spiral lines have a same pole shank. The mixing unit comprising logarithmic spiral lines is merged into the piezoelectric pump as a system for conveying the mixed fluid, and has low power consumption and simple structure.

The invention discloses a range hood. The range hood comprises an exhaust fume collecting hood and an exhaust fume gathering component, wherein a main air inlet is formed in the exhaust fume collecting hood; and an exhaust fume collecting cavity is formed inside the exhaust fume collecting hood. The range hood is characterized in that the exhaust fume gathering component comprises a first exhaustfume gathering plate and a second exhaust fume gathering plate; the first exhaust fume gathering plate is arranged at the left side of the exhaust fume collecting hood; the second exhaust fume gathering plate is arranged at the right side of the exhaust fume collecting hood; a first auxiliary air inlet is formed in the bottom of the first exhaust fume gathering plate; a second auxiliary air inletis formed in the bottom of the second exhaust fume gathering plate; the first auxiliary air inlet and the second auxiliary air inlet are in communication with the exhaust fume collecting cavity; and the first exhaust fume gathering plate and the second exhaust fume gathering plate can be in a closed state in which the corresponding auxiliary air inlets are located inside the exhaust fume collecting hood, and in the expanded state in which the corresponding auxiliary air inlets are at least partially located outside the exhaust fume collecting hood.

The invention discloses a fuel assembly blending screenwork with rectifying type blending wings. The fuel assembly blending screenwork comprises an outer strip and a plurality of inner strips, wherein the plurality of inner strips are intercrossed to form a grid structure, the grid structure is provided with a plurality of hollow grid units, the outer strip surrounds the periphery of the grid structure and is fixed together with the inner strips, the grid structure is provided with a plurality of blending wings, the blending wings are stretched into the grid units, and flow guide grooves are formed in the surfaces, facing to the interiors of the grid units, of the blending wings. The fuel assembly blending screenwork disclosed by the invention can be used for reducing the shunt phenomenon of a coolant towards the left and right sides of the blending wings, limiting the irregular flow of the fluid, playing a rectifying function and ensuring that the blending wings are used for improving the thermal balance effect of the fuel assembly.

The invention relates to an elevator device. The elevator device comprises flow division components (118, 128) which are arranged on the upper and lower sides of a cage (112) for inducing an air flow, wherein the tops of the flow division components are smaller than the bottoms; the front surfaces of the flow division components towards a landing door (108) are vertical surfaces, left and right surfaces are provided with lateral inclined parts extending from the middles of the tops to the two sides of the bottoms, and the rear surfaces are provided with rear inclined parts extending from the front spaces of the tops towards the rear sides of the bottoms. The flow division component on the upper side of the cage is fixedly arranged at a position on a traction rope (116) with the top facing upwards where the flow division component does not conflict with a traction wheel (114), and the size of the horizontal projection of the flow division component is smaller than a floor rope hole (106) in a machine room floor (104). The flow division component on the lower side of the cage is fixedly arranged on a compensation rope (126) with the top facings downwards. Thus, the elevator device can achieve the effects of air rectification and noise reduction with low cost under the condition that the height of a well is not increased and the load of the elevator device is not greatly increased.

The invention discloses a window-type air conditioner with a water coolant anti-spattering structure at the outdoor side, comprising a compressor, an indoor heat exchanger, an outdoor heat exchanger, an indoor fan, an outdoor fan, a shell, a chassis and a baffle which is arranged on the chassis and divides the air conditioner into an indoor part and an outdoor part; and a circular-arc anti-spattering grille is increased on the inner side of the air-inlet grille on an outer shell of the chassis. The window-type air conditioner of the invention intercepts the spattered water coolant caused by the rotation of the increased anti-spattering grille to the outdoor side fan, leads the water coolant to continuously fall back on the chassis; and the increased anti-spattering grille plays a rectification effect on the inlet air at the outdoor side, decreases the generation of vortex, and reduces the noise at the outdoor side.

The invention relates to a three-impeller axial flow fan of a subway traction motor brake cooling system, which can efficiently reduce the wind resistance and the fan noise and improve the fan efficiency, and comprises a double-impeller axial flow fan of the traction motor brake cooling system, wherein an impeller is installed on the machine body of a motor in the double-impeller axial flow fan. The invention has the advantages that: firstly, because the impeller located between a front impeller and a back impeller can form great dynamic match with the front impeller and the back impeller, and can avoid the disadvantages of the background technology basically so as to efficiently improve the efficiency of the fan, reduce the noise and the wind resistance of the fan and meet the requirements of the subway traction motor on brake and cooling; secondly, because the fan has lower wind resistance coefficient and higher efficiency, the purpose of saving energy is achieved; thirdly, due to the arrangement of a streamline-shaped guide plate, the purpose of fixing the three-impeller axial flow fan is realized, and the function of rectification is also realized, such that the three-impeller axial flow fan realizes the purpose of flow stabilization, high speed and powerfulness.

The invention discloses a DC brushless self-driven rotor wing device on the basis of an integrated scheme for integrating rotor wings and electromagnetic drive. Mainly, a drive device is composed of an electromagnet (1) and a permanent magnet (2), a rotor wing device is composed of a rotary ring (4) and blades (5), a measuring device is composed of a position sensor (6), and a supporting device is composed of a support (3). An electromagnetic field is generated after the electromagnet (1) is powered on, the permanent magnet (2) is pushed to move, and therefore the rotary ring (4) and the blades (5) are driven to rotate, and lifting force or power is generated for the device when the blades (5) rotate and move; the supply voltage is changed, and then the strength of the magnetic field generated by the electromagnet (1) can be changed, then the rotating speed of the rotary ring (4) and the blades (5) is changed, and the magnitude of lifting force or power generated by the device is changed; the position sensor (6) can sense the real-time position or rotating speed of the rotary ring, signals are provided outwards, the external supply voltage is changed, and the rotating speed of the blades (5) is controlled.

The invention provides an experimental testing device for a flow field effect of a flow control technology under a limited channel condition. The experimental testing device comprises a contraction section, a rectification section, a replaceable testing section and a tail section which are sequentially connected to form a fluid flow area, wherein the contraction section adopts an expansion reducing structure, and the inner diameter of the contraction section is increased along with the flow direction; a rectification device is arranged in the rectification section; two ends of the replaceabletesting section are respectively connected with the rectification section and the tail section through quick release flanges; a CCD (Charge coupled device) camera is arranged at the upper part of thereplaceable testing section and is used for carrying out visual shooting on an experiment; the replaceable testing section comprises adjustable wall surfaces, a bluff body, a partition plate and a quick release plate, the adjustable wall surfaces are arranged at two sides of the bottom in the replaceable testing section, and the width parameter of the replaceable testing section can be changed byadjusting the placing positions of the adjustable wall surfaces; and the bluff body and the partition plate are arranged on the quick release plate and are placed in a flow channel through the detachable connection of the quick release plate and the replaceable testing section. The experimental testing device provided by the invention has the advantages of simplicity in disassembly and maintenance, easiness in adjusting structural parameters, high experimental efficiency, accurate experimental result and the like.

The invention provides an agricultural seeder provided with a seed premixing, separating and conveying device and belongs to the field of automated equipment of agricultural cultivation machinery. The agricultural seeder is characterized in that the agricultural seeder further comprises a sowing mechanism, the sowing mechanism comprises a seed cabin, a powder cabin, a material mixing cabin, a seed separation cabin and a sowing wheel, the seed cabin and the powder cabin are communicated with the material mixing cabin through material guide pipes, and the material mixing cabin is connected with the sowing wheel through the seed separation device; the material mixing cabin is in a hollow sphere shape, and a spiral material mixing strip hole is formed in the material mixing cabin. According to the agricultural seeder, the seeds and medical powder can be evenly and stably stirred in advance, materials can be sorted and separated timely, the seeds can be separated from one another in the sowing process, the sowing success rate is greatly raised, and powerful guarantee is provided for agriculture income increase.

The invention discloses a low-temperature gas throttle valve plate for a refrigerating machine, which is mounted at a heat end of a low-temperature heat regenerator of a G-M refrigerating machine. The valve plate is made of a material with high specific heat capacity at low temperature below 50K; the outer diameter of the valve plate and the inner diameter of the low-temperature heat regenerator are in interference fit with each other; a plurality of micro-pores are formed on the valve plate; the diameters of the micro-pores are 0.2-0.6mm; and the thickness of the valve plate is 5-15mm. After the low-temperature gas throttle valve plate provided by the invention is additionally arranged at an inlet of the heat end of the low-temperature heat regenerator, a function for throttling and cooling secondary air inflow is achieved, the heat load of the low-temperature heat regenerator is reduced, the airflow distribution in the low-temperature heat regenerator is improved, the heat exchange efficiency between gas and cooling material is increased, the flow resistance loss is reduced and the whole property of the refrigerating machine is increased.

The invention relates to a range hood. The range hood comprises an exhaust fume collecting hood, a first oil guide plate, a second oil guide plate, an oil cup and a third oil guide plate; the exhaust fume collecting hood is provided with an exhaust fume collecting cavity and an air inlet, the first oil guide plate is arranged in the exhaust fume collecting cavity, is located at the front part of the exhaust fume collecting hood, and is obliquely arranged backwards from top to bottom, and the second oil guide plate is arranged in the exhaust fume collecting cavity, is located at the rear part of the exhaust fume collecting hood, and is obliquely arranged backwards from top to bottom; the oil cup is arranged, and the third oil guide plate is arranged in the exhaust fume collecting cavity, is obliquely arranged backwards from top to bottom, and is used for receiving oil dripping from the first oil guide plate and guiding the oil to the second oil guide plate; and the third oil guide plate, the first oil guide plate and the second oil guide plate jointly divide the exhaust fume collecting cavity into a first cavity corresponding to the upstream of the exhaust fume flowing direction and a second cavity corresponding to the downstream of the exhaust fume flowing direction, and the front side and the rear side of the third oil guide plate are provided with a first air suction opening and a second air suction opening. Through the cooperation of all the oil guide plates, the purpose of guiding the oil can be achieved, the exhaust fume flowing path can be changed, exhaust fume is rectified, and then the oil fume suction effect is improved.

The invention relates to a heat exchanger water sprinkling device. The heat exchanger water sprinkling device comprises a shell assembly and a water receiving plate which is disposed on the shell assembly and used for collecting water. When the amount of water entering the water receiving plate is larger than the capacity of the water receiving plate, the water in the water receiving plate can overflow from the edge of a plate opening of the water receiving plate to a heat exchanger. The water receiving plate in the heat exchanger water sprinkling device can achieve the effects of water collecting and rectifying, firstly, the water is gathered in the water receiving plate, after the water receiving plate is full of the water, and the water can uniformly overflow from the edge of the plateopening and then are uniformly sprinkled onto the heat exchanger, so that the problem that non-uniform distribution of water on the heat exchanger causes low utilization ratio of water and incompleteheat exchange of water and heat exchanger is solved.

The invention discloses a device for reducing fluid oscillation in a moon pool in sailing of a drilling ship. The device comprises a first damping box and a second damping box, wherein the first damping box and the second damping box are arranged at the bottom of the moon pool; one end of each of the first damping box and the second damping box is hinged to the inner wall of the moon pool; the other ends of the first damping box and the second damping box are both circular arc-shaped; when the first damping box and the second damping box are horizontal, the bottom of the moon pool can be sealed by the first damping box and the second damping box; the first damping box and the second damping box are respectively connected with a driving device; the driving device is used for driving the first damping box and the second damping box to rotate around the inner wall of the moon pool. By adoption of the device for reducing fluid oscillation in the moon pool in sailing of the drilling ship, vortexes caused by sudden structure change when fluid flows through the bottom of the moon pool with a large opening can be well reduced by virtue of the damping boxes, impact of the vortexes to the inner wall of the moon pool can be weakened, ship shaking can be reduced, and ship sailing resistance can be reduced.

The invention discloses a high-control premixing advancing type agricultural seeder, and belongs to the field of mechanical automation equipment for agricultural farming. The high-control premixing advancing type agricultural seeder is characterized in that a walking mechanism, a material mixing bin, a seed separating device and a seeding wheel are included, and the material mixing bin is connected with the seeding wheel through the seed separating device; the material mixing bin is shaped like a hollow sphere, and helical material mixing strip holes are formed in the material mixing bin; the material mixing bin is driven by a stirring-mixing drive device to rotate. The high-control premixing advancing type agricultural seeder can freely advance under the rugged mountain road condition, seeds and pesticide powder can be uniformly and stably stirred in advance through the agricultural seeder, and finishing and material separating can be performed in time, so that the seeds are clear when seeding is performed. The high-control premixing advancing type agricultural seeder also has the advantages that a conveying switch of the seeds can be accurately controlled to work, not only is seeding while advancing achieved, but also the seeding work can be immediately stopped without needing to stop advancing in the stirring and mixing process, and use is more flexible and convenient. Accordingly, the seeding success rate is greatly increased, and a strong guarantee is supplied to agricultural income increasing.

The invention provides an advancing wheel type seeding machine for material premixing and distribution and belongs to the field of automatic mechanical equipment for agricultural cultivation. The advancing wheel type seeding machine for material premixing and distribution is characterized by further including a mixing silo, a seed distributing device, a seeding wheel and a walking mechanism, wherein the mixing silo is connected with the seeding wheel through the seed distributing device and is in a hollow sphere shape, and spiral material-mixing strip-shaped holes are formed in the mixing silo. The mixing silo is driven to rotate by a stirring-mixing driving device. The advancing wheel type seeding machine can freely perform advancing operation on rugged mountain land, can further evenly stir seeds and medicine powder in advance, independently deliver the seeds one by one and perform automatic seeding, greatly improves the seeding success rate and provides powerful guarantee for agricultural income increase.

The invention relates to an automatic dewatering device of an oil storage tank and an application method of the automatic dewatering device. The device comprises a differential pressure gauge and a sealed tank body, wherein the tank body is internally provided with a floating ball with the density between densities of oil and water and a tapered groove is formed in the bottom of the tank body; the bottom of the floating ball can be completely matched with the tapered groove; the bottom of the tapered groove is communicated with a water drainage pipe; the top of the tank body is communicated with an oil inlet pipe and an oil returning pipe respectively; valves are arranged on the water drainage pipe, the oil inlet pipe and the oil returning pipe respectively; a flow meter is arranged on each of the water drainage pipe and the oil inlet pipe; and two measuring ends of the differential pressure gauge are located in the tank body and the water drainage pipe respectively. The device has good reliability, accuracy in dewatering and low cost.

The invention provides an auxiliary transformer cabinet draught fan comprising a machine shell assembly, an air inlet, an impeller, an air outlet and a power source. The machine shell assembly is of abox-shaped shell structure formed by a machine shell cover plate, machine shell side plates and a machine shell bottom plate. An installation opening used for installing the air inlet is formed in the machine shell cove plate. At least two air outlets are formed in the machine shell bottom plate. The windward side of the air inlet is an arc-shaped face. The impeller is arranged in the box-shapedshell structure and is of a backward centrifugal type impeller structure. The impeller comprises a front wheel disc and blades. The surface of the end, close to the air inlet, of the front wheel discis an arc-shaped face. The blades are arc-shaped blades. When the draught fan is applied, the effect that the structure is simplified is achieved. By means of the unique design of the four parts, namely, the machine shell assembly, the air outlet, the air inlet and the impeller, the internal flow field of the draught fan can be well optimized, gas flow can be smoother, the overall work efficiencyof the auxiliary transformer cabinet draught fan can be better improved, generation of eddy noise can be well reduced, and the aims of energy conservation and noise reduction are achieved.

The invention relates to the technical field of automobile energy saving and emission reduction, and specifically discloses a bionic heavy truck pneumatic damping device. The pneumatic damping deviceis installed between a tractor and a trailer. The pneumatic damping device includes a connecting surface, a rectifying surface and two side faces, the connecting surface is fixed on the side, near thetractor, of the trailer, the rectifying surface includes an outward convex surface, an inward concave surface and a tail extension surface, the outward convex surface is located above the inward concave surface, and the outward convex surface is tangent to the top surface of the trailer. By means of the pneumatic damping device, flow separation of air flow on the top of a container of the traileris weakened, the separating area is reduced, the drag reduction efficiency of the entire vehicle is as high as 15%, and an effective rectifying effect is achieved.

The invention relates to the technical field of floating power generation devices, and discloses a floating power generation device comprehensively utilizing ocean renewable energy. The floating powergeneration device comprehensively utilizing the ocean renewable energy comprises a floating pipe body, a fixed supporting plate and fan blades, the fixed supporting plate is fixedly installed on theinner wall of the floating pipe body, a double-head power generator is fixedly installed in the middle of the fixed supporting plate, a rotating long rod is arranged on the left side of the double-head power generator, and a flow guide cone is fixedly installed at one end, away from the double-head power generator, of the rotating long rod. According to the floating power generation device comprehensively utilizing the ocean renewable energy, the double-head power generator is arranged, the number of the power generators is increased by one on the original basis, an output shaft of the additionally-arranged power generator is connected with the flow guide cone, through arrangement of the flow guide cone, on one hand, the flow guide cone can bring extra power output to the newly-added powergenerator in the rotating process, and therefore the generating capacity can be improved; and on the other hand, the flow guide cone can throw out sundries attached to the flow guide cone in the rotating process, and the electricity generation amount is guaranteed.