30results about How to "Reduce runaway" patented technology

The invention discloses a lateral suction range hood. The lateral suction range hood comprises a hood (1) and a movable smoke guide plate (2); the hood (1) is provided with a smoke inlet (10); the movable smoke guide plate (2) is switched between opening and closing states, and comprises multiple plates bodies (20, 21, 22); when the movable smoke guide plate (2) is located in the closing state, all the plate bodies (20, 21, 22) are arranged in a first direction (X) in sequence, and two adjacent plate bodies (20, 21, 22) in the first direction (X) are rotationally connected; and a rotating center line (O) of each plate body (20, 21, 22) is parallel to a second direction (Y). When the movable smoke guide plate (2) is located in the opening state, the movable smoke guide plate (2) is folded with the rotating center line of at least one plate body as a folding line, so that the extension length of the movable smoke guide plate is reduced.

The invention discloses a double-path connection M2M (machine-to-machine) system, which comprises an M2M terminal, an M2M platform and an application system, wherein the M2M terminal is respectively connected with the M2M platform and the application system, and the two paths of connection are based on different protocols; one path of connection realizes the data interaction between the M2M terminal and the M2M platform, and then the M2M platform and the application system establish a data transmission channel through the internet; and the other path of connection realizes the direct data interaction between the M2M terminal and the application system. The invention also discloses a double-path connection M2M terminal and a connection method thereof. The M2M system and the terminal disclosed by the invention have the characteristics of double paths of connection, the reliability of wireless communication is enhanced, and redundance backup and timely updating of acquired information are realized; and offline reconnection measures ensure connection online to the maximum extent, and the occurrence of a terminal incontrollable state is reduced.

A four-wheel-drive high-speed all-weather driverless patrol car system comprises a patrol car body and a control system. The patrol car body comprises two pairs of front and rear driving wheels, and each pair of driving wheels is driven by four direct-current motors in connection with planetary reducers. First front and rear environment detection and protection systems in a control system mainly comprise single-line laser radars and CCD cameras; each of second front and rear environment detection and protection systems mainly comprises two microwave radars; each of front and rear blind area detection and obstacle avoiding systems comprises three ultrasonic sensors; the single-line laser radars, the microwave radars, the CCD cameras and a first auxiliary controller are all connected with amaster controller; ultrasonic sensors and motor drivers are connected with the first auxiliary controller, and each motor driver is connected with four direct-current motors. The system is high in stability, reliability, cost performance, operation processing speed and flexibility and effective in resistance to severe weather.

An urban road sweeper for dust suction and haze removal is characterized in that a sweeping device, a dust-settling device, a sprinkling device and a haze removal device are arranged in the compartment, dust suction devices are disposed on two sides of the compartment, the sweeping device comprises a sweeping roller and a dust collection box, the sweeping roller is aligned with an opening of the dust collection box, a guide plate is arranged above the sweeping roller, a filter mesh is arranged at the top of the dust collection box, the dust-settling device comprises a water tank, a water pump and a spraying pipe connected in sequence through a pipeline, the spraying pipe is evenly provided with a plurality of spray nozzles that open to the inside of the compartment, the bottom of the compartment is provided with a water gathering box used for gathering water sprayed by the spray nozzles, the water gathering box is communicated with the bottom of the water tank, the bottom of the water gathering box is provided with a sprinkling port, the haze removal device comprises a centrifugal fan, an inlet of the centrifugal fan faces the compartment, an outlet of the centrifugal fan is communicated with the inlet of a haze removal electrode box, and the dust suction devices comprise windows arranged in the sidewalls of the compartment, and axial-flow fans for drawing air out of the compartment into the compartment are rotatably arranged at the windows.

The invention discloses a four-wheel-driven all-weather driverless patrol car system. The patrol car system comprises a patrol car body and a control system; the patrol car body is provided with a front pair of driving wheels and a rear pair of driving wheels, wherein the four driving wheels are driven by four direct-current motors respectively; each direct-current motor is connected with a planetary reducer; each of a first front environment detection and protection system and a first rear environment detection and protection system in the control system is mainly composed of a first single-laser radar, a second single-laser radar and a CCD camera; each of a second front environment detection and protection system and a second rear environment detection and protection system is mainly composed of two microwave radars; each of a front blind area detection and obstacle avoidance system and a rear blind area detection and obstacle avoidance system is composed of three ultrasonic sensors;the single-laser radars, the microwave radars, the CCD cameras, a wireless communication module and an auxiliary controller are all connected with a main controller; and the ultrasonic sensors and amotor driver are all connected with the auxiliary controller, and the motor driver is connected with the four direct-current motors respectively. The system is high in stability, reliability and costperformance, high in arithmetic processing speed, high in flexibility and capable of effectively coping with severe weather.

The invention discloses a device for preparing methanol into propylene. The device comprises a first reactor, a first material conveying pipe, a second material conveying pipe, a third material conveying pipe, a cooling unit, a dimethyl ether separation tower, a heating furnace, a second reactor, a separation unit, a C4 rectifying tower, a circulating hydrocarbon pipeline and a steam pipeline. Theinvention further discloses a corresponding method for preparing methanol into propylene. Isobutane is separated from circulating hydrocarbons, and a first product stream obtained by carrying out thereaction for preparing methanol into dimethyl ether in the first reactor is divided into three streams, so that the temperature flying phenomenon of the reactor can be reduced through dispersed feeding matched with different temperatures, and meanwhile, the high-efficiency temperature control of the reactor can be facilitated by adjusting the gas-liquid ratio fed from a side line.

The present invention relates to a pressurized gas sealing device for an atmosphere furnace, which belongs to the mechanical category and mainly includes a gas sealing device and a furnace body connected to the gas sealing device, and a channel is provided in the gas sealing device, and there are multiple The blocking part is formed with a storage chamber by blocking, and the storage chamber is used to pressurize the gas in the storage chamber through a gas pressurizing device, and each of the blocking parts is provided with a delivery port, so that when the furnace body When the gas flows in the direction of the gas sealing device, the gas pressurization device is used to fill the accommodating chamber with gas and pressurize, so that the air pressure in the accommodating chamber is slightly lower than the air pressure in the furnace body and suppressed, so that the gas in the furnace body can be reduced. Flow from the direction of the air seal device to achieve the effect of air seal.

The invention relates to a micro-channel reaction system and a method for preparing an epoxy compound. The micro-channel reaction system comprises a mixer and a micro-channel reactor; materials are fed according to the molecular design molar ratio of a target product and mixed into a mixture through the mixer; the micro-channel reactor comprises a micro-channel preheating section and a micro-channel reaction section, and the mixture is preheated through the micro-channel preheating section and then introduced into the micro-channel reaction section for reaction. According to the method, the raw materials are directly mixed and preheated, all the raw materials are fully mixed and react according to molecular design simulation positions, meanwhile, the reaction is controlled by adjusting the feeding speed of the mixture, and the temperature rise and the pressure rise caused by reaction heat release are both lower than design temperature and design pressure, and the design temperature and the design pressure are both lower than the highest bearing temperature and the highest bearing pressure of the equipment, so that safe reaction can be ensured under the condition that the reaction is out of control. Therefore, the reaction for preparing the epoxy compound is intrinsically safe and is more environment-friendly, and a product with higher purity is obtained.

The invention relates to a closed rotary type annular turbojet steam wheel. The annular turbojet steam wheel comprises a shell, a middle shaft, a sealed jet cavity, a jet ring, a sealing ring piece, an exhaust collector and an air inlet collector; the sealed jet cavity is fixedly mounted on the inner wall of the shell, the jet ring is arranged in the sealed jet cavity, and the sealing ring piece is rotationally mounted on the inner ring sealing jet cavity of the jet ring; the middle shaft is coaxially mounted in the middle of the shell, the exhaust collector and the air inlet collector sequentially and coaxially penetrate through the middle shaft in the shell from bottom to top, air inlet branch pipes are evenly distributed on the outer wall of the exhaust collector at intervals, exhaust branch pipes penetrate through the sealing ring piece to be connected with the jet ring, and the exhaust branch pipes evenly distributed at intervals penetrate through the sealing ring piece to connect the jet ring with the air inlet collector. According to the closed rotary type annular turbojet steam wheel, the steam loss in the jet process is effectively reduced, and the efficiency of steam acting is improved; meanwhile, corrosion of steam to parts is avoided, and the service life of the steam wheel is prolonged.

The invention relates to a small and medium-sized automobile tire burst emergency device that is an inner tire which is arranged in a small and medium-sized automobile tire and is made of a material with light weight, high strength and certain buffering capacity, can be a tire with a honeycomb-shaped, honeycomb-shaped, multi-dimensional and other hollow structures, is tightly combined with a rim by virtue of the elasticity of the tire, and keeps a certain distance with the small and medium-sized automobile tire. According to the tire burst emergency device, harm caused by tire burst of the automobile tire is reduced in a simple and reliable mode, the safety guarantee level of drivers and passengers is improved, and impact on automobile structures and parts is reduced.