218results about How to "Avoid scalding accidents" patented technology

The invention discloses electrically-driven ultra-large-displacement well cementation equipment. The electrically-driven ultra-large-displacement well cementation equipment comprises a first loading body and a second loading body; an auxiliary motor, a main motor, a clear water module, a pumping module, a control module, a hydraulic module and a mixing module are fixedly loaded on the first loading body; and a frequency converter module is fixedly loaded on the second loading body. The electrically-driven ultra-large-displacement well cementation equipment has the beneficial effects that the main motor is adopted to drive a plunger pump, torque converters are reduced, the layout space of the whole vehicle is increased, the auxiliary motor is adopted to drive a whole vehicle hydraulic system, and the number of driving motors is reduced; the frequency converter module and the well cementation equipment are loaded separately, the loading requirement is lowered, the structure is simpler, the occupied space is reduced, one frequency converter module can supply power to all the modules on the multiple first loading bodies at the same time, and use is flexible; and the main motor, the auxiliary motor and the hydraulic heat dissipation device are intensively distributed on the front portion of the first loading body, wiring is simple, connection is convenient, heat dissipation of equipment is intensively achieved, scalding accidents of workers in the operation process are avoided, and operation safety is improved.

The invention discloses a pressure alarm device for an electric pressure cooker and a method for using the same. The pressure alarm device comprises a base and an outer casing, wherein a spacing bossis arranged above the base, and the outer casing is arranged above the spacing boss. The top of the outer casing is provided with a transparent protective cover, the upper side surface of the outer casing is provided with a display screen casing, the display screen casing is provided with a liquid crystal display, and the rear side of the liquid crystal display is provided with a backlight set. The beneficial effects are as follows: 1. the temperature and pressure information inside the electric pressure cooker can be automatically monitored and displayed, which is convenient for the user to check the use condition of the electric pressure cooker; 2. the pressure can be automatically relieved to avoid the danger of excessive internal pressure of the electric pressure cooker, and the pressure is released, an alarm signal is sent to facilitate the user to find out in time; 3. when the electric pressure cooker is powered off, the internal condition of the electric pressure cooker can be continuously monitored to avoid danger; and 4. the temperature of hot air discharged during the pressure relief can be reduced to avoid scald accidents, and the security is good.

The invention relates to a device for adding soup in a hot pot. The device comprises a table, wherein a heating device and a control device are arranged on the table; a pot is placed on the upper portion of the heating device; a tabletop of the table is hinged to a movable door; a soup discharging tube which is driven to ascend or descend via a lifting driving device is arranged below the movable door; the movable door can be opened when the lifting driving device drives the soup discharging tube to ascend; the lifting driving device is fixedly arranged on the inner side wall of the table; the soup discharging tube is connected with an outputting end of an electric pump through a flexible pipeline; an inputting end of the electric pump is connected with a soup tank through a pipeline; and the electric pump, the lifting driving device and the heating device are electrically connected with the control device. By the device, soup can be automatically added in the hot pot when a user eats chafing dish, if the soup level in the hot pot reaches the maximum level, the soup is stopped from being added in the hot pot, the device is intelligent and safe, and the user can feel good when eating the chafing dish.

The invention discloses a water heater with lower inner liner pressure. The water heater comprises an inner liner, a water inlet pipe, a water outlet pipe, a hydraulic valve and a cold water pipeline communicated with the water inlet pipe and the hydraulic valve; the water heater also comprises a first electromagnetic valve used to control the disconnection or connection of the water inlet pipe, a second electromagnetic valve used to control the inner liner to connect or disconnect with the atmosphere, a water flow detector used to detect the water flow in the cold water pipeline and a controller used to output control signals for controlling the disconnection or connection of the first electromagnetic valve and second electromagnetic valve according to the detection signals of the water flow detector. When hot water is not used, the electromagnetic valve on the water inlet pipe of the water heater of the invention is used to close the water inlet pipe all along, thus avoiding that the inner liner always bears the tap water pressure; and the electromagnetic valve on the water outlet pipe is used to ensure that the water outlet pipe is communicated with the atmosphere, thus avoiding the pressure on the inner liner owning to the volume expansion of water in heating process. When hot water is used, the water heater of the invention can avoid that hot water flows directly from themixing valve to scald human.

The invention relates to a hinge, in particular to a hinge used between a furnace door and a furnace body of an electric steaming furnace. The hinge comprises a hinge rotating component, a hinge fixing seat (2) and a hinge positioning sheet (3), wherein the hinge rotating component comprises a shell (1), a positioning sheet connecting component (4) and a tension spring (5); the lower end of the positioning sheet connecting component (4) is connected with the hinge positioning sheet (3); the upper end of the positioning sheet connecting component (4) is connected with one end of the tension spring (5) through a tension spring lower end fixing rod (9); the side wall of the positioning sheet connecting component (4) is in sliding fit with a limit groove (11) on the shell (1) through a bulge; and the other end of the tension spring (5) is connected with a tension spring upper end fixing rod (8) on the shell (1). The hinge is characterized in that: a distance between the tension spring upper end fixing rod (8) and the tension spring lower end fixing rod (9) is greater than the length of the tension spring (5) in a natural state. The hinge for the electric steaming furnace has a reasonable structure and is higher in sealing property.

The present invention relates to a hot-water boiler for a hot-water mat, in which a water storage tank, having a refill water storage compartment and a hot-water storage compartment, is arranged above and connected to a water-heating tank provided with an electric heater, such that hot water circulates throughout the interior of the hot-water mat using the vacuum suction force generated in the water-heating tank at the moment the hot water heated by the electric heater in the water-heating tank flows toward the hot-water storage compartment of the water storage tank by means of the steam pressure generated in the water-heating tank. In the event a hot-water hose is clogged or the interior of the water-heating tank is filled with air, refill water stored in the refill water storage compartment of the water storage tank is automatically supplied to the interior of the water-heating tank.

The invention relates to a table top hot pot soup adding device which comprises a table. A heating device and a control device are disposed on the table. A pot is disposed on the upper portion of the heating device. A soup discharge pipe is arranged on the lateral side of the heating device. The soup discharge pipe is connected with the output end of an electric pump through a pipeline. The input end of the electric pump is connected with a soup pot through a pipeline. The electric pump and the heating device are electrically connected with the control device. The control device comprises a central control module, a first photoelectric sensor, a second photoelectric sensor and an electric pump drive circuit, wherein the first photoelectric sensor for detecting the lowest soup level in the pot, the second photoelectric sensor for detecting the highest soup level in the pot and the electric pump drive circuit are connected with the central control module, and the first photoelectric sensor and the second photoelectric sensor are mounted on the inner surface of the opening of the pot. The table top hot pot soup adding device has the advantages that automatic soup adding is achieved when people enjoy the hot pot, soup adding can be automatically stopped by detecting whether the soup level in the pot reaches the highest soup level or not, the table top hot pot soup adding device is intelligent and safe, and good hot pot experience can be provided to users.

The invention discloses a constant-temperature shower system and a control method thereof. The constant-temperature shower system comprises a water inlet pipeline, a water outlet pipeline, a water storage tank, a storage water inlet pipe, a storage water outlet pipe, a hot water proportional valve, a cold water proportional valve, a water mixing valve, a first temperature sensor and an electronic controller; the water inlet pipeline comprises a hot water pipeline and a cold water pipeline; the storage water inlet pipe is communicated with the water outlet pipeline and the water storage tank; a first solenoid valve is arranged on the storage water inlet pipe; the storage water outlet pipe is communicated with the cold water pipeline and the water storage tank; the hot water proportional valve is used for controlling the flow of hot water which flows out from the hot water pipeline; the cold water proportional valve is used for controlling the flow of cold water which flows out from the cold water pipeline; the hot water and the cold water form mixed water in the water mixing valve; the first temperature sensor is used for monitoring the temperature of the outlet water at the outlet of the water mixing valve; the electronic controller controls the on-off state of the first solenoid valve and corresponding actions of the hot water proportional valve and the cold water proportional valve according to the data provided by the first temperature sensor. According to the constant-temperature shower system and the control method thereof provided by the invention, the problems of water resource waste and instable water temperature caused in the process of debugging a water temperature are solved.

The invention relates to an oven, which comprises a main body having a liner, wherein a roller-type grill basket module which can be driven by a driving motor to rotate is installed inside the liner, the roller-type grill basket module comprises an upper grill basket and a lower grill basket, which are connected with each other in the vertical direction in an open-close way, the roller-type grillbasket module is provided with a rotating shaft to be coupled and connected with the driving motor, the roller-type grill basket module is detachably connected with a handle module, and the liner is provided with an internal circulating airflow module. The inner bottom parts of the upper grill basket and the lower grill basket are respectively provided with a stop block. The edges of openings at one sides of the upper and the lower grill baskets respectively extend out to form a wind breaking plate to be symmetric to each other, and the edges of openings at the other sides of the upper and the lower grill baskets are respectively connected with the wind breaking plates in a buckling way. The roller-type grill basket module is rotated along the rotation of the motor, annular airflow is produced by the internal circulating airflow module inside the liner, and through holes and the wind breaking plates are arranged on the roller-type grill basket module to be more convenience for the annular airflow to pass through, so the roller-type grill basket module can be quickly preheated, the energy consumption is low, the cooking efficiency is high, the use cost can be saved, and the environmental protection concept of modern people can be satisfied.

The present invention is the preparation process of tripterygium extractive. The preparation process includes low temperature dynamic countercurrent extraction of tripterygium material with organic solvent, decompressing concentration of the extracted liquid, extraction of the concentrated liquid with organic solvent, normal pressure recovering of organic solvent and vacuum drying to obtain coarse tripterygium extractive. The said process has short extraction period, reduced organic solvent throwing amount, low power consumption for recovering organic solvent, less damage to the effective components of tripterygium, high extraction rate of the effective components and high product quality.

The invention discloses automatic electromagnetic pancake production equipment, and belongs to the field of automatic production equipment of pancakes. The automatic electromagnetic pancake production equipment is characterized by comprising the following parts: a metal pancake making plate, a rotary-plate rotating power device, an electromagnetic heating device, a batter distributing device, a uniform scraping device and a pancake dishing-off device. The electromagnetic heating mode is utilized to replace conventional gas or coal combustion heating so as to ensure more uniform heating; thus, no artificial heat control is required, and the use of the equipment is convenient and environmentally friendly. After performing of a large amount of experience summarization and equipment operation experiments, the inventor has come to the conclusion that only scientific technical parameters can ensure perfect match of the batter distributing step, the uniform scraping step and the pancake dishing-off step during the production processes of the pancakes so as to ensure that the shaped pancakes are thin and not cracked, as well as wholly cooked. Tests have proven that the qualified rates of the pancakes produced by the equipment are up to 95% or higher.

The invention discloses a material injection device of a die casting machine. The material injection device comprise a material cylinder and a plunger, wherein the material cylinder is used for containing molten metal liquid, the plunger is arranged in an inner cavity of the material cylinder, the material cylinder comprises a flat part and a gooseneck part which are in transition connection by an inclining part, the lowest point of the inclining part is lower than the lowest point of a material outlet of the gooseneck part, the plunger comprises a plunger head and a second plunger head which are connected by a plunger rod, a non-pressure chamber for containing the molten metal liquid is formed among the plunger head, the second plunger head, the plunger rod and the flat part, a pressure chamber for containing to-be-injected molten metal liquid is formed among the plunger head, the gooseneck part and the flat part, and a one-way flowing device is arranged between the non-pressure chamber and the pressure chamber, is sealed during material injection, and is opened in the plunger resetting process. The material injection device of the die casting machine has the advantages that the die casting cycle is short, the production efficiency is high, the qualified rate of products is higher, the heating temperature of the metal liquid is lowered, and the service life of a die and other parts is prolonged.

The invention provides a door-opening type stick-withdrawing vehicle of a single crystal furnace, relating to a stick-withdrawing vehicle of a single crystal furnace. The stick-withdrawing vehicle comprises a vehicle frame, wherein the bottom of the vehicle frame is provide with an orientation wheel and a universal wheel with a brake; the vehicle frame is provided with a lifting system and a horizontal telescopic clamping system; and the lifting system mainly comprises an oil pump component, an oil box, a hydraulic cylinder, a top rod, a lifting-up footboard, a lifting-down footboard, a lifting guide rod, a guide rod bracket and a guide rod limiting board. The horizontal telescopic clamping system is arranged above the top rod of the hydraulic cylinder, and mainly comprises a telescopic hand wheel, a telescopic screw rod, a guide cylinder, a telescopic arm, a clamping screw rod, a clamping hand wheel, a locking pin, a pressing arm, a clamping block, a shaft pin, a pallet, a chain and a suspending hook. The door-opening type stick-withdrawing vehicle can avoid the accident and overcome the quality problem of the product since workers are scalded when withdrawing the stick to lead a single crystal silicon stick to be fallen off, thereby being capable of safer and more accurately completing the process of stick withdrawing.

The invention discloses an electric connector tinning device. The electric connector tinning device comprises guide columns fixed to a base, a positioning board, handles and positioning blocks, wherein the positioning board can move up and down in the guide columns, and the height of the positioning board is limited through limiting sleeves; the handles can move horizontally at the two ends of the positioning board and are used for limiting the rising height of the positioning board through the guide columns; the positioning blocks can move on the positioning board horizontally and are fixed to the positioning board through fixing nuts and fixing screws. An electric connector is positioned and clamped through positioning pins and puller screws fixed to the positioning blocks. The electric connector tinning device can be applicable to electric connectors of different specifications, the tinning height of a welding pin of the electric connector in a tin pan is controllable, and assembling and disassembling are easy.

Provided are an intelligent faucet and a control method thereof. The intelligent faucet comprises a faucet body, a valve element, a faucet handle, a water route assembly and a control system, whereinthe control system comprises a control chip and a temperature sensor; the water route assembly comprises a three way magnetic valve, a hot water inlet pipe, a cold water inlet pipe, a mixed water pipeand a water outlet pipe; a back flow pipeline, a first valve, a second valve and a miniature water pump are arranged in the water outlet pipe; the three way magnetic valve, the first valve, the second valve and the miniature water pump are electrically connected with the control system; and the control system comprises a controller and the temperature sensor, and the temperature sensor is electrically connected with the controller. The controller receives the temperature signal fed back from the temperature sensor, judges the relation between the temperature signal and the threshold value, and then controls the valves and the miniature water pump to guide the residual high-temperature hot water in the water outlet pipe to the back flow pipeline to achieve the effect of preventing scald. The intelligent faucet is simple in structure, convenient to use and capable of achieving scalding prevention well, meanwhile the residual high-temperature hot water is recycled, and water conservationcan be achieved.

The invention relates to a carbon calcinations rotary kiln in the production field of an aluminum anode, in particular to a carbon calcinations rotary kiln secondary wind pipe installation structure and installation method. The carbon calcinations rotary kiln secondary wind pipe installation structure comprises a rotary kiln cylinder body and a kiln liner, and is characterized in that: the rotarykiln cylinder body and the kiln liner are respectively provided with an installation hole, a secondary wind pipe with a fire-resisting pouring material protection layer is arranged inside the installation hole, a sealing sleeve is sleeved on the secondary wind pipe at the outer side of the rotary kiln cylinder body, the upper end of the sealing sleeve is provided with an upper end flange with a suspension overturning bolt, the middle-upper part of the secondary wind pipe is provided with a fixed flange which is fixedly arranged on the upper end flange, and flexible heat-resisting sealing stuffing is arranged between the sealing sleeve and the secondary wind pipe. The fire-resisting pouring material protection layer which is coated outside the secondary wind pipe can be laid in a safe and wide field outside the kiln, so the construction quality of the pouring material protection layer can be guaranteed. Due to the adoption of the installation structure and the installation method, the repairing time can be greatly shortened, the calcinations production capacity of a rotary kiln can be improved, the structure is simple, economical performance and practicability can be realized, and easiness for implementation can be realized.

Disclosed is a forward and reverse rotation frying pan. A body of the frying pan comprises an upper cover, a base, a food container, a fan component and a heating element. The forward and reverse rotation frying pan is characterized in that the food container horizontally and axially rotates, an opening of the food container clockwise and anticlockwise rotates relative to an air outlet of the fan component, so that part of food in the food container is driven to be clockwise or anticlockwise rolled and mixed along the inner wall of the food container, and the food is uniformly heated. The frying pan has the advantages of simple and reasonable design, energy conservation, environmental protection, cleanness and wide application range, and can be widely applied to kitchen cookers such as a fryer and an oven.

The invention discloses a processing system for an amorphous alloy magnetic core belt material of a mutual inductor. The processing system comprises an amorphous alloy smelting furnace, a smelting furnace movable support, a smelting furnace sliding guide rail, an amorphous alloy pouring container, an amorphous alloy belt material cooling roller and an amorphous alloy belt material collecting pipe. The amorphous alloy smelting furnace is fixedly arranged on the smelting furnace movable support. A plurality of support movable rolling wheels are arranged at the bottom of the smelting furnace movable support. The multiple support movable rolling wheels are all arranged on the smelting furnace sliding guide rail. The two ends of the amorphous alloy belt material collecting pipe are provided with a belt material collecting inlet end and a belt material collecting outlet end, and a plurality of cooling gas high-speed sprayers are arranged on the inner side wall of the amorphous alloy belt material collecting pipe. Each cooling gas high-speed sprayer obliquely faces the axis of the amorphous alloy belt material collecting pipe and further faces the belt material collecting outlet end. By the adoption of the processing system, the influence on all supporting members by high temperatures can be reduced, and waste of the magnetic core belt material in the collecting operation process can be reduced.

The invention relates to the technical field of water heaters, and in particular, discloses a water heater system control method and a water heater. The water heater system control method comprises the steps of: (S1) detecting a present water flow Q in a water inlet and outlet pipeline within unit time; and (S2) judging if the present water flow Q is higher than a preset water flow P; if so, turning on a pressurizing mode of a water heater system; and if not, turning on a circulating mode of the water heater system. The method detects and judges if the present water flow Q is higher than the preset water flow P to effectively judge if users are using the water heater to determine the present mode of the water heater system, so that the scald accident caused by higher water temperature at the time of opening a water outlet end of the water heater system by the users due to wrong opening of the pressurizing mode of the water heater system under the condition of needing to open the circulating mode is prevented. Meanwhile, the wrong opening of the circulating mode of the water heater system under the condition of needing to open the pressurizing mode is prevented, so that the water heater system can provide enough water use pressure.

The invention belongs to the field of garment processing and provides an ironing machine for garment production. A steam generator, a conveying pipe and a gas collection tank are arranged in a workbench, one end of the conveying pipe is connected with the steam generator, and the other end of the conveying pipe is connected with the gas collection tank; an ironing table is arranged on the workbench and located over the gas collection tank, multiple jet holes are formed in the ironing table, and a vertical rod is arranged on the workbench at one side of the ironing table and connected to a rotation rod through a hinge; the rotation rod is connected with a placement plate through a universal connector, a supporting column for supporting the placement plate is arranged at the other side, corresponding to the vertical rod, of the ironing table, and a supporting rack is further arranged on the workbench; an air cylinder is arranged on the supporting rack, and a pressure disc is arranged below the air cylinder and located over the ironing table. The ironing machine for garment production is better in ironing effect, has less damage to garments and avoids hidden safe dangers.

The invention is applied to the field of robots, and provides a robot meal delivery control method. The method comprises the following steps of receiving ordering information of a user, and taking ordered meal according to ordering information and calculating the optimal path to the meal position of the user; controlling the robot to detect whether an obstacle exists in the path in real time according to the optimal path; when it is detected that an obstacle exists in the detection path, adjusting the advancing direction to avoid the obstacle; when the robot arrives at the user's meal position, acquiring the size information of the spare position of the dining table of the user; judging whether the meal product can be placed on the dining table or not; and when it is judged that the food product cannot be placed on the dining table, reminding the user to move the position of the meal product on the dining table; and when it is judged that the meal product can be placed on the dining table, placing the meal product and returning. According to the robot meal delivery control method provided by the invention, the obstacles in the path are detected in real time, so that the possibilityof collision during the advancing process is effectively avoided, and the meal delivery robot does not need to depend on magnetic navigation, and the cost is greatly reduced; in addition, a meal product can be taken independently, and extra human assistance is not needed; and meanwhile, an accident that scald is caused due to overhigh temperature of a meal product can be avoided, so that the method is suitable for popularization and application.

The invention relates to a continuous vacuum drying roasting method for small crystal grain 5A molecular sieve. The method includes the following steps: (1) filling a feed tank with the 5A molecular sieve material; (2) performing vacuumizing on the feed tank; (3) performing vacuumizing on a vertical disc rotary vacuum roasting furnace; and sucking the 5A molecular sieve into the vertical disc rotary vacuum roasting furnace, and performing heating in sections to obtain a dried roasted and activated 5A molecular sieve; (4) performing vacuumizing on a product bin; (5) opening an automatic controlvalve V of a material inlet II of the product bin, and automatically closing the automatic control valve V after a weighing system of the product bin shows full tank; (6) performing cooling to 50 DEGC in the product bin through a jacket to obtain a product; and (7) discharging the product from the product bin; and at the same time, performing switching to start a spare product bin. The method has precise temperature control, safety and environmental protection, and can realize continuous operation under a high vacuum degree.

The invention discloses a multifunctional water supply system for a wall-hanging furnace, which comprises a cold water pipeline and a hot water pipeline; a constant temperature valve for adjusting the water temperature to be constant is interconnected to the middle of the cold water pipeline and the hot water pipeline; the cold water pipeline and the hot water pipeline are communicated with a water inlet and a hollow valve cavity of the constant temperature valve respectively; and a piston capable of changing along with the temperature and vertically moving is arranged in the valve hollow cavity and used for controlling overflow surfaces of two water inlets, so that the mixed water in the valve body is discharged from the outlet of the valve body after reaching the set temperature. The temperature of the mixed water outlet temperature of the constant temperature device has very excellent stability and can be used for bath; the other one high temperature hot water pipeline is used for heating or used for supplying water for kitchen. Meanwhile, the constant temperature device of the wall-hanging device is further provided with an eccentric elbow and an adjustable tube joint, so that the cross distance and the longitudinal distance between two water inlet and outlet pipe can be effectively adjusted to satisfy the different models of the wall-hanging furnace with water inlet and outlet holes spaced at different distances.

The invention relates to a cutting machine used for hardware machining and having a good heat dissipation effect. The cutting machine comprises a bottom box, a cutting piece, a rotating pipe, two bearings and two connecting boxes, wherein the shape of the connecting boxes and the shape of the bottom box are both rectangular, the cutting piece is installed on the rotating pipe, and the rotating pipe is located between the two connecting boxes; a mounting hole is formed in the side, close to the cutting pipe, of each connecting box, the rotating pipe penetrates through the mounting holes, and the rotating pipe and the mounting holes are in sliding and sealing connection; and the bearings are in one-to-one correspondence to the connecting boxes, the bearings are located between the connectingboxes and the cutting piece, an auxiliary mechanism is arranged in the bottom box, and heat dissipation mechanisms are arranged in the two connecting boxes. The cutting machine used for hardware machining and having a good heat dissipation effect achieves the function of eliminating sparks during cutting, avoids scald accidents and improves the safety. Moreover, the heat dissipation effect of thecutting piece and the rotating pipe is also promoted through the heat dissipation mechanisms.

The invention discloses a hot melt connection mechanism for a novel plastic pipe. Anti-scalding plates which are parallel to a heat plate and can get close to or away from the heat plate are arranged on supports on two sides of the heat plate; through holes matched with melt heads are formed in corresponding positions on the anti-scalding plates; the end part of the pipe penetrates through the through holes and is in contact with the melt heads. Aiming at the defects of frequency scalding accidents caused by easily careless operation of a conventional hot melt machine in the market, the hot melt connection mechanism for the novel plastic pipe is improved and optimized for corresponding structures. When the hot melt connection mechanism for the novel plastic pipe is used for connecting the pipe, the end part of a pipe fitting penetrates through the through holes in the anti-scalding plates for pipe orifice melting; the anti-scalding plates are positioned between hands of an operator and the heat plate; in case of misoperation caused by improper force, the operator pushes the anti-scalding plates to be in contact with the heat plate or the melt heads, to avoid direct contact between the hands and the heat plate or the melt heads, thus avoiding a scalding accident and improving the safety in the working process.

The invention discloses a single-hole double-track tunnel two-side horizontal guide type rescue station fire model test system. The system comprises a tunnel system, a fire source simulation device, asmoke exhaust device and a monitoring device. The tunnel system comprises a main tunnel passage, parallel evacuation passages and transverse connecting passages, the two parallel evacuation passagesare arranged on the two sides of the main tunnel passage in parallel, and the transverse connecting passages are perpendicular to and communicate with the main tunnel passage and the parallel evacuation passages. The fire source simulation device is arranged in the tunnel system; the smoke exhaust device comprises a smoke prevention fan, a smoke exhaust pipeline and a smoke exhaust fan, the smokeprevention fan is arranged in the transverse connecting passages, the smoke exhaust pipeline is communicated with the main tunnel passage, and the smoke exhaust fan is arranged at the tail end of thesmoke exhaust pipeline and exhausts smoke to the outside of the tunnel; the monitoring device is arranged in the tunnel system and used for monitoring the smoke concentration and the smoke flowing rule in the main tunnel passage, the parallel evacuation passages and the transverse connecting passages. Modularized assembling is adopted, assembling is easy and convenient, and the real tunnel fire situation can be fully simulated.

The invention discloses a wool drying device. The wool drying device comprises a box body (1), wherein an air inlet (2) is formed in the top of the box body (1); the air inlet (2) is connected with an air inlet tube (3); the end part of the air inlet tube (3) is further equipped with a hot air blower (4); an air outlet (5) is formed in the bottom of the box body (1); the air outlet (5) is equipped with an exhaust fan (6); the air outlet (5) is further equipped with an air outlet tube (7); a condenser (8) is mounted in the air outlet tube (7); a hollow drying main tube (9) is arranged inside the box body (1); the top end of the drying main tube (9) communicates with the air inlet tube (3); a drying tray (10) with a hollow inner part is arranged on the drying main tube (9); a gas outlet (11) is formed in the drying tray (10); the drying tray (10) communicates with the drying main tube (9); and a net disc (12) is arranged on the drying tray (10). The wool drying device has the advantages of being capable of quickly drying wool, and being good in drying effect.

The invention provides a water cooling fault detection and protection system of a microwave ablation instrument. The water cooling fault detection and protection system comprises a water flow detection module which is used for arranging a plurality of ultrasonic devices on the two sides of a peristaltic pipe of the microwave ablation instrument; a water flow state determining and water quantity detection module which is used for determining water inlet information and water outlet information of the peristaltic pipe; a fault detection module which is used for receiving the water flow state, the water inlet information and the water outlet information, and sending a fault signal when the water cooling fault occurs through a preset water cooling fault judgment model; and a fault alarm modulewhich is used for controlling the microwave ablation instrument to stop acting. The beneficial effects of the invention are that: the system is suitable for industrial production; by detecting the water cooling system of the microwave ablation instrument, the microwave ablation needle of the microwave ablation instrument can be prevented from breaking down when a human body operation is carried out, and if the breaking down can be found in advance or immediately, the execution action of the microwave ablation instrument is turned off, so that an operator and a surgeon cannot be scalded by high temperature.

The invention relates to the technical field of household appliances and discloses a water dispenser flush button for preventing school-age children from scalding. The water dispenser flush button forpreventing school-age children from scalding comprises a casing and a hot water valve rod, wherein a hydraulic cylinder is fixedly mounted on one side of the casing, a cavity dividing cylinder is fixedly mounted at one end of the inner chamber of the hydraulic cylinder, the other end of the inner chamber of the hydraulic cylinder is connected to a plunger in a sliding manner, an ejector rob is fixedly connected to one side of the plunger, the ejector rob is aligned with the hot water valve rod, and one end of the inner chamber of the hydraulic cylinder is divided into an upper chamber and a lower chamber by the cavity dividing cylinder. According to the water dispenser flush button provided by the invention, the hydraulic cylinder is arranged between the casing and the hot water valve rod, two sets of sealed pistons, compression bars and reset springs are arranged inside the hydraulic cylinder, the two sets of mechanisms are arranged on upper and lower sides separately, two shiatsu plates are required to be pressed for properly pressing the ejector rob to be in place, so as to press the hot water valve rod for water yielding. Therefore, by increasing the distance between the two shiatsu plates, and using the characteristic that school-age children can not press the two shiatsu plates simultaneously by one hand, the occurrence of scalding caused by hot water due to the pressingof school-age children can be prevented.