30results about How to "Avoid Explosion Hazards" patented technology

The invention discloses an inflatable bag capable of intelligently monitoring the pressure of an air valve, and belongs to the field of inflatable bags. The inflatable bag capable of intelligently monitoring the pressure of the air valve comprises an inflatable bag body, ventilation pipes are arranged on the surface of the inflatable bag body at equal intervals, the tops of the ventilation pipes are communicated with an inflation opening of the inflatable bag body, the bottoms of the ventilation pipes are communicated with an air column body, sealing structures are arranged in the ventilation pipes, and the air valve is arranged below the sealing structures. The problems that in the inflation process in the prior art, if the pressure is too large, the air column bag swells, and consequently the air column bag is exploded due to falling or collision in the transportation process are solved, the pressure of the inflation bag body is continuously monitored, when it is monitored that the pressure in the air column body is close to the predicted pressure, the sealing structure is closed, and the air column bag is prevented from being damaged. It is guaranteed that the pressure of the inflatable bag body is within the pressure threshold value range all the time, and the situation that due to the fact that the pressure is too large, the inflatable bag body explodes, and packaged products are damaged in the transportation process is avoided.

The invention discloses a mining air-leakage-stopping flame-retardant anti-static spraying foaming material and a preparation method thereof, and relates to the technical field of spraying foaming materials, the mining air-leakage-stopping flame-retardant anti-static spraying foaming material comprises a first component and a second component, the first component comprises the following raw materials in parts by weight: polyether polyol, a flame retardant, a catalyst, a foam stabilizer, an antistatic agent, a filler, a plasticizer and a foaming agent; the second component is prepared from the following raw materials in parts by weight: diisocyanate, a plasticizer, a flame retardant and filler. Efficient anti-static is achieved through the modified conductive graphite, and the problem that a traditional antistatic agent is poor in compatibility is solved; the flame retardant property is remarkably improved by adopting an efficient flame retardant composition, and spontaneous combustion in a high-temperature environment is prevented; the combination of polyether polyol and diisocyanate is optimized, so that the compressive property and the mechanical strength are improved; and low-temperature reaction reduces potential safety hazards, construction is convenient, and various conditions are adapted. The material effectively solves the problems of insufficient anti-static, flame-retardant and compression-resistant properties, and provides safe and reliable technical guarantee for underground coal mines.

The invention discloses an airflow stirring device with a high-temperature sealing effect and a using method thereof. The airflow stirring device comprises a stirring container, a gas distributor arranged at the bottom of the stirring container, a driving stirring mechanism arranged on the stirring container and the gas distributor, and a multi-stage sealing assembly arranged on the gas distributor and the driving stirring assembly. The stirrer is matched with the gas distributor for use, the dispersion capacity is high, the circulation capacity is good, the problems of high-temperature caking and poor suspension effect of mixed materials are solved, the multi-stage sealing assembly is adopted, the sealing performance is enhanced, and the danger of explosion caused by sealing failure and gas leakage at the high temperature is prevented; the sealing reliability of the stirring device under severe working conditions such as high temperature is greatly improved, the possibility of explosion caused by gas leakage is reduced, the multi-stage cooling assembly is adopted, the temperature of a sealing part is reduced, downward heat transfer is reduced, and it is guaranteed that the device operates stably at the high temperature.

The invention discloses a high-pressure gaseous hydrogen peroxide supply apparatus, and a high-pressure substrate processing apparatus and method using the same. The high-pressure substrate processing method includes: a step of reacting hydrogen gas and oxygen gas; a step of obtaining a generated hydrogen oxide having a first pressure; a step of converting the generated hydrogen oxide into a treated gaseous hydrogen oxide having a second pressure higher than the first pressure and atmospheric pressure; and a step of causing the processing gaseous hydrogen oxide to act on the substrate to be processed in the processing chamber.

The invention provides a testing system suitable for a bamboo joint pipe type solid oxide fuel cell, and the system comprises an anode gas circuit which is used for conveying anode gas and / or anode tail gas; the cathode gas path is used for conveying cathode gas and / or cathode tail gas; the SOFC single tube testing device is used for assembling a single cell tube and is respectively communicated with the anode gas path and the cathode gas path, so that the anode gas and the cathode gas are subjected to electrochemical reaction on the single cell tube; the adjusting assemblies are respectively arranged on the anode gas path and the cathode gas path and are used for adjusting output parameters of the anode gas and the cathode gas; and the detection assembly is used for collecting and analyzing the performance parameters of the anode gas and the cathode gas and the electrochemical performance parameters of the single battery tube. Through the test system provided by the invention, the problems that the current test system is not suitable for bamboo joint tubular battery test, the test condition consistency is poor, the obtained test data is single, and explosion is easy to occur are solved.

The invention relates to the technical field of glass processing, and discloses a modified glass kiln which comprises a mounting plate, the mounting plate is fixedly mounted at the bottom of the kiln, a flame gun is arranged on one side of the mounting plate, a sliding device is mounted between the flame gun and the mounting plate, and the sliding device is used for driving the flame gun to move transversely. A lifting mechanism is arranged on one side of the flame gun and comprises a first gear and a rack which are meshed with each other, a transmission mechanism is arranged on one side of the first gear and comprises a first chain wheel, a chain and a second chain wheel which are meshed with each other, and a rotating shaft is fixedly installed on the second chain wheel. A power device is arranged at one end of the second chain wheel; the flame gun is arranged to replace traditional coal combustion, environmental protection is achieved, the double spray guns are arranged, replacement can be achieved during long-time use, damage to the spray guns due to too high temperature is avoided, and the situation that the spray guns cannot work when blocked can be prevented.

The invention relates to the technical field of environmental protection, and discloses an industrial furnace dry sludge powder co-processing device with a pulverizing system, which comprises a coal mill, an inlet of the coal mill is connected with a coal feeder, an outlet of the coal mill is connected with a coarse powder separator through a powder conveying pipeline, and an outlet of the coarse powder separator is connected with a fine powder separator through a powder conveying pipeline. An outlet of the fine powder separator is connected with a powder exhauster through a powder conveying pipeline, the pneumatic conveying pipeline is provided with a flow limiting valve and an isolating valve, and an outlet of the pneumatic conveying pipeline is connected with the powder conveying pipeline. According to the industrial furnace dry sludge powder co-processing device with the pulverizing system, the problems that unorganized emission, dust explosion and deliquescence are prone to occurring in the processes of coal mixing, conveying and entering the pulverizing system, so that energy waste is caused, and the output and efficiency of the pulverizing system are reduced are solved.

The utility model discloses a raw coal crushing device, including;Box body;The mounting bracket of symmetrical setting in the box body;The breaker board of linear array in the side wall of mounting bracket, is provided with the cavity in the breaker board, the spray head of linear array in the top of breaker board. The raw coal crushing device provided by the utility model, through the drive sliding frame drive fixed plate reciprocating movement, make fixed plate and two adjacent breaker board between each other cooperate and carry out the crushing of raw coal, make fixed plate and breaker board can break raw coal into powder, in the process that breaker board carries out the crushing of raw coal, through the spray head of breaker board top installation and spray out the water mist to the raw coal crushing area and cover, make the dust of raw coal crushing process can be fast dust fall, not only avoid the dust floating to the air and cause environmental pollution and human body damage, also reduce the waste of water resources in the dust fall process, avoid the danger of dust explosion simultaneously.

The utility model discloses a vehicle-mounted storage battery internal resistance detector which comprises a device shell, a side opening door, a control panel and heat dissipation holes, a movable body is arranged, a rod frame connected with the right end of a sliding plate drives a blade to rotate on the outer side of a screw rod and move towards the tail end of the screw rod, the effect of driving airflow is achieved, and when the blade reaches the tail end of the screw rod, the blade is driven to rotate to the tail end of the screw rod. And a second limiting block is arranged at the tail end of a screw rod, so that blades cannot fall off, a sliding plate continues to move to drive a center block to return to the original position, hot air in the device shell is discharged out of heat dissipation holes in a one-to-one manner, and the risk of explosion of the storage battery due to the fact that the temperature in the device shell is too high is avoided.

The application discloses an explosion-proof electric actuator, which comprises an electric actuator body, a pressure relief device and a protection device, a detection assembly is arranged in the protection device, bolts for assembling the electric actuator body and the protection device are arranged in the detection assembly, and a light plate and a laser radio frequency device for monitoring the movement of the bolts are arranged on one side of the bolts, and particularly relates to the technical field of electric actuators. The explosion-proof electric actuator is provided with an inductor ring matched with the bolts, if the bolts of the actuator are loose, the displacement of the offset bolts is transmitted to the contact block through the inductor ring, the contact block contacts the transmission rod, the transmission rod rotates around the hinge and drives the contact plate to swing, the contact plate swings downward and presses the flat plate, the flat plate moves downward, the flat plate drives the light plate to move, the distance between the light plate and the laser radio frequency device is changed, the fastening condition of the bolts can be monitored, and the personnel are reminded to pay attention to the use safety of the actuator.

The invention belongs to the field of ferrous metallurgy equipment, and relates to an electric furnace annular hole bundling powder spraying oxygen lance. The multi-layer sleeve spray gun which is formed by connecting and combining a water cooling assembly, a cluster spray pipe assembly and a carbon powder spray pipe assembly into a whole through sealing flanges and bolts has the functions of thermal protection, cluster oxygen injection, long-distance powder injection, combustion heating and the like. Powder of the cluster powder spraying oxygen lance flows out from the interior of supersonic jet flow, and carbon powder sprayed out at the position away from the molten pool liquid level is wrapped by the jet flow and directly fed into molten steel of a molten pool. The powder spraying pipe adopts the wear-resistant ceramic pipe, the powder leakage protection pipe and the powder leakage warning pipe are arranged outside the ceramic pipe, and the gap is reserved between the ceramic pipe and the protection pipe, so that smoke alarm can be given out once the ceramic pipe is worn by carbon powder to penetrate through the powder leakage warning pipe, equipment maintenance personnel can conveniently replace the powder leakage warning pipe in time, the harm of accidental production halt is eliminated, and the service life of the oxygen lance is prolonged.

The present application provides an online activation system, method and vehicle for a fuel cell, and relates to the field of fuel cell technology. The system includes: a bidirectional DC converter, a fuel cell, and vehicle equipment, and the vehicle equipment includes: a power battery and electrical equipment on the vehicle; a hydrogen control valve is provided on the hydrogen intake pipe of the fuel cell, a hydrogen circulation pump and a hydrogen-water separator are provided on the hydrogen circulation pipe of the fuel cell, and the hydrogen circulation pipe is connected to the hydrogen intake pipe; an air control valve, an air compressor, an intercooler and a first humidifier are provided on the air intake pipe of the fuel cell, an air-water separator, a three-way valve and a second humidifier are provided on the air circulation pipe of the fuel cell, and the air circulation pipe is connected to the air intake pipe, and the connection position of the air circulation pipe and the air intake pipe is located between the air control valve and the air compressor. Through the system of the present application, the on-board fuel cell can be automatically activated by multi-cycle hydrogen pump and high-power activation when the whole vehicle is running.

The invention relates to scintillator glass melted in a high-concentration hydrogen atmosphere and a preparation method and application thereof. The preparation method comprises the following steps: preparing raw materials and mixing the raw materials; charging and melting in a high-concentration hydrogen atmosphere: charging the powder into a high-purity alumina crucible, then putting the crucible into a hearth of a high-concentration hydrogen atmosphere furnace, vacuumizing, introducing mixed gas into the high-concentration hydrogen atmosphere furnace, controlling the total flow of the mixed gas, and melting in the high-concentration hydrogen atmosphere furnace, when the pressure in the hearth is in a micro-positive pressure state, opening a one-way stop valve, controlling tail gas emission, starting an atmosphere furnace heating system, and heating, preserving heat and founding for a certain time; clarifying and homogenizing; molding by casting and annealing; and processing to obtain the scintillator glass. According to the invention, efficient formation and uniform dispersion of Ce < 3 + > are guaranteed through sufficient reduction, and finally, the scintillator glass reaches better levels in transmittance, light yield, decay time and irradiation resistance.

The utility model discloses a fixed heating device of an internal serial box type graphitization furnace, and belongs to the technical field of lithium battery material production. The graphitization furnace comprises a furnace box and a conductive structure penetrating through the whole furnace box, the conductive structure comprises first conductive strips, second conductive strips and cushion blocks, the cross section of each first conductive strip is an isosceles trapezoid, the cross section of each second conductive strip is a right trapezoid, and a plurality of first trapezoid slopes are attached end to end to form a row; a cushion block is connected right below the joint of the two conductive strips by using an adhesive; the conductive structures are arranged in a plurality of columns, each column is provided with a plurality of layers, the cushion blocks of the first layer of conductive structures are adhered to the bottom of the furnace box through adhesives, and then the cushion blocks of each layer are adhered to the top faces of the conductive strips through adhesives. The graphitization furnace can avoid large explosion danger, and is low in construction cost, high in productivity and suitable for popularization.

This invention discloses a crane winch descent energy recovery system and method, belonging to the field of hydraulic system control technology. It solves the problems of traditional gravitational potential energy recovery via accumulators, which result in throttling and heating, large accumulator size, pressure differential, and safety hazards. This recovery system includes a hydraulic pump, electric motor, battery, generator, engine, hydraulic motor, multi-way valve, flow control module, winch motor, and brake. The flow control module consists of a pressure compensation valve and a balance valve connected in series. During descent, the load drives the winch motor to reverse and output high-pressure oil, which drives the hydraulic motor to generate electricity and store it in the battery. During ascent, the battery powers the hydraulic pump, and the electrical energy can also be used for lighting and control systems. This invention replaces the accumulator with a battery, reducing size and extending pressure holding time; the flow control module ensures that the speed does not change with the load weight, but only with the current of the multi-way valve, improving the controllability of lifting speed.

The utility model discloses a multichannel hydrogen fuel electric pile pipeline, which relates to the technical field of hydrogen fuel pipelines and comprises a hydrogen fuel main force transmission pipe and a protective sealing box, and the hydrogen fuel main force transmission pipe penetrates through the surfaces of two ends of the protective sealing box. The box body sucking pump is located in the protective sealing box, the gas content in the protective sealing box is monitored through the gas content monitor, it is guaranteed that the oxygen content is low, once the oxygen content is high, the first setting disc on the box body vacuumizer is directly used for controlling the box body sucking pump to be started for sucking gas, and therefore the oxygen content is high. And gas in the protective sealing box is pumped into the box body vacuumizer and finally exhausted into the environment through the exhaust pipe, so that oxygen in the protective sealing box is reduced, the content of oxygen on the outer surfaces of the hydrogen fuel main transmission pipe and the hydrogen fuel split-flow transmission pipe is reduced, and the explosion hidden danger in the hydrogen fuel transportation process is avoided.

The utility model provides a kind of compound fertilizer packaging machine, it is related to compound fertilizer packaging machine field, including packaging machine base, transmission belt and hopper are installed on packaging machine base, hopper is located above transmission belt, two cylinders are fixedly installed on packaging machine base, two cylinders are respectively located at the front and back of hopper, the output end of two cylinders opposite is fixedly installed with sealing clamping plate, packaging bag support plate is set to the both sides of hopper, two electric telescopic rods are fixedly installed on packaging machine base, two packaging bag support plates are respectively installed on two electric telescopic rods.The utility model, by clamping mechanism, both play sealing bag mouth to prevent compound fertilizer bagging process spills, and cooperate dust extraction pipe and dust extraction ring can collect dust generated during bagging, prevent environmental pollution, and avoid the danger of dust explosion.

The utility model provides a dust interception type bag clamping mechanism which comprises a mounting plate and a discharging hopper fixed on the mounting plate, and further comprises a dustproof assembly and a bag clamping assembly, and the discharging hopper is provided with a feeding end and a discharging end. The dustproof assembly comprises a rotating shaft penetrating through the discharging end, a turning plate door located in the discharging end and matched with the discharging end, bearing blocks fixed to the outer wall of the discharging hopper, a swing block connected to one end of the rotating shaft and a driving air cylinder controlling the rotating shaft to rotate through the swing block, and the two bearing blocks are connected to the two ends of the rotating shaft through bearings respectively. A fixed arm is connected to the mounting plate, one end of the driving cylinder is in transmission connection with the swing block, the other end of the driving cylinder is fixed to the fixed arm through a cylinder seat, a connecting seat matched with the rotating shaft is arranged at the bottom of the turning plate door, and the driving cylinder controls the rotating shaft through the swing block to drive the turning plate door to turn over, so that opening and closing of a port of the discharging end are achieved. According to the utility model, floating dust in the air in the production process can be reduced, so that the production environment becomes cleaner, the production safety is high, and the blanking weighing precision can be improved.

The utility model discloses an explosion-proof combustible gas detector, which relates to the technical field of explosion-proof combustible gas detectors and comprises an outer protection unit, a pipe body unit, a drawing unit and an opening and closing unit. The drawing unit comprises an outer frame movably arranged in the front end of the outer protection unit and explosion-proof glass mounted in the outer frame and used for sealing and observing gas detection; the opening and closing unit comprises a micro motor installed in the bottom end of the outer protection unit and a sleeve sealing plate movably arranged in the bottom end of the outer protection unit and used for controlling gas to enter. The explosion-proof combustible gas detector provided by the utility model is simple in connection, disassembly and assembly structure, convenient for workers to operate and convenient for later replacement or maintenance of the detector, and can be automatically opened and closed according to the input quantity of combustible gas, thereby avoiding the danger of explosion caused by excessive input quantity of the combustible gas; and the safety performance of the device is improved, and good practicability is achieved.

The invention relates to the technical field of nitrocellulose, and discloses a nitrocellulose benzene substance content detection method, which comprises: preparing standard benzene-free nitrocellulose, preparing a benzene-free nitrocellulose standard solution, preparing a benzene substance standard solution, and preparing a benzene-containing nitrocellulose standard solution, testing by using a headspace-gas chromatograph, drawing a standard curve, dissolving the nitrocellulose sample, detecting by using the headspace-gas chromatograph, and obtaining the content of the benzene substances in the nitrocellulose sample through the standard curve. The detection method is high in test speed, high in accuracy and wide in application range.

The utility model discloses a meteorological automatic inflation fine device of sounding, including hydrogen storage tank, hydrogen pipeline, weighing sensor and control box, hydrogen pipeline is divided into the former section and the latter section, and hydrogen pipeline former section is connected with hydrogen storage tank, hydrogen pipeline latter section is divided into the outer sphere inflation pipeline and the inner sphere inflation pipeline, and two are communicated with the outer sphere of double -layer sounding balloon and the inner sphere through the outer sphere inflation hose, the inner sphere inflation hose respectively, and are equipped with the outer sphere pipeline solenoid valve, the inner sphere pipeline solenoid valve respectively, weighing sensor is fixed on the inflation platform and is connected with double -layer sounding balloon through sounding special rope, and weighing sensor is used for measuring net lifting force, and net lifting force real -time signal is transmitted to control box, control box is used for receiving, display net lifting force to real -time control outer sphere pipeline solenoid valve and the opening and close of inner sphere pipeline solenoid valve according to net lifting force size. The utility model can realize the accurate control to the balloon net lifting force in the process of the flat drift double -layer sounding balloon inflation.

The utility model relates to battery box technology field especially, more particularly to a new energy automobile battery box and car that is provided with cooling structure, including water cooling plate, the periphery of water cooling plate is fixed with frame beam, water cooling plate inside is equipped with water cooling plate coolant circulating channel, the side of water cooling plate is fixed with the water inlet joint and the water outlet joint that communicate with water cooling plate coolant circulating channel, water cooling plate coolant circulating channel in along its extension direction evenly is equipped with a plurality of circular cooling column mechanism. The utility model has the advantages of: the heat that battery module operation produced is passed to the coolant in water cooling plate coolant circulating channel through liquid cooling plate, and the circular cooling column mechanism can effectively increase the heat exchange area of coolant, accelerates the cooling to effectively increase the heat exchange efficiency of water cooling plate.

The utility model relates to the technical field of industrial calcining, in particular to a calcining tunnel kiln for calcining black talc bricks, which comprises a kiln body component, a conveying mechanism, two lifting components and a plurality of vortex tubes, two ends of the two lifting components are fixedly connected with two ends of the kiln body component respectively, the conveying mechanism is fixed at the lower end of the kiln body component, and the vortex tubes are fixed at the lower end of the kiln body component. Materials needing to be calcined are placed on the bearing assembly, then the materials on the bearing assembly are conveyed into the inner cavity of the body through the power assembly, then the two ends of the body are sealed through the material sealing door driven by the lifting assembly, and due to the fact that the material sealing door is located at the upper end of the bearing assembly, the materials in the inner cavity of the body are calcined and heated through the vortex tube; by means of the arrangement, the poor calcining effect caused by excessive heat loss can be avoided, meanwhile, internal gas expanded due to temperature rise can flow out of the inner cavity of the body through the lower end of the bearing assembly, the danger of explosion caused by gas expansion in the inner cavity of the body is avoided, and safety production is more convenient.

This utility model relates to auxiliary equipment in the machinery manufacturing industry, and discloses a grease dispensing pressure tank, including an outer tank with a barrel lug fixedly connected to its exterior. An auxiliary fixing mechanism is slidably connected to the exterior of the outer tank, and a pressing mechanism is fixedly connected to its interior. A top-layer assembly is slidably connected to the top of the outer tank. The pressing mechanism includes an inner tank, with its bottom fixedly connected to the interior of the outer tank. A sealing ring is slidably connected to the interior of the inner tank, and a piston is fixedly connected inside the sealing ring. An exhaust port is provided inside the piston, and an oil outlet assembly is fixedly connected to the top of the piston. This utility model allows non-flowing grease to be smoothly dispensed. A safety valve automatically releases pressure when it is too high, preventing the risk of explosion due to exceeding the safety pressure threshold. A pressure-reducing valve allows for manual pressure release when not in use, ensuring safe and convenient operation.

The invention relates to the technical field of water treatment engineering, and particularly discloses a sectional purification isopropanol waste liquid concentration method and system.The system comprises a raw water storage tank, the raw water storage tank is connected with a security filter, a booster pump is arranged on a pipeline between the security filter and the raw water storage tank, the security filter is connected with a first membrane filtration assembly, and the first membrane filtration assembly is connected with a second membrane filtration assembly; a first high-pressure pump is arranged on the pipeline between the membrane filtration assembly I and the security filter, a produced water outlet of the membrane filtration assembly I is connected with a cooling produced water tank, a concentrated water outlet of the membrane filtration assembly I is connected with a temporary storage tank, and a circulating pump is arranged on the pipeline between the raw water storage tank and the temporary storage tank; the temporary storage box is connected with a second membrane filtering assembly, and a second high-pressure pump is arranged on a pipeline between the second membrane filtering assembly and the temporary storage box; cooling assemblies are connected to the raw water storage tank and the temporary storage tank in a penetrating manner. The device has the characteristics of high integration degree and small occupied area.

The utility model relates to the technical field of ferrous metallurgy, and discloses a fake electrode welding tool for seamless steel tube electroslag remelting, which comprises a fake electrode body, a first tube body and a second tube body. The first pipe body is connected with one end of the fake electrode body in a welded mode through the first auxiliary fixing plate, and a first exhaust hole is formed in the first pipe body. The second pipe body sleeves the part of the first pipe body, a first exhaust hole formed in the first pipe body is exposed out of the second pipe body, a second exhaust hole is formed in the second pipe body, the diameter of the second pipe body is larger than that of the first pipe body, and the corresponding ends of the first pipe body and the second pipe body are welded and connected through a second auxiliary fixing plate. According to the electroslag remelting device, it can be guaranteed that electroslag remelting is conducted smoothly, the quality of remelted steel ingots is guaranteed, in the electroslag remelting process, gas generated in the first pipe body and gas generated in the second pipe body can be discharged smoothly, the danger of explosion caused by the fact that internal air pressure is increased is avoided, and the safety of the electroslag remelting process is guaranteed.

The invention discloses a needle valve seating bounce driving control method for an injector of a direct-injection hydrogen engine, which comprises the following steps of: S1, constructing a three-order current driving model by a controller, the magnitude and duration time of main pull-up current used for controlling the electromagnetic valve of the hydrogen ejector to be completely opened and the magnitude and duration time of auxiliary pull-up current used for reducing the vibration jump amplitude generated when the electromagnetic valve of the hydrogen ejector is opened are defined. And a magnitude and duration of a buffer current for reducing a vibration jump amplitude generated when the hydrogen injector solenoid valve is closed; and S2, the controller controls a PWM module according to the definition in the three-order current driving model, so that current is provided for an electromagnetic coil of the electromagnetic valve of the hydrogen ejector, and the vibration jump problem of the electromagnetic valve of the hydrogen ejector is solved. The collision problem generated in the opening process and the collision problem generated in the seating process are effectively solved, and the explosion danger caused by hydrogen leakage is avoided.

The invention relates to the technical field of flow detection, and discloses a detection device and method for detecting the flow of a gas-liquid two-phase flow, the detection device comprises a detection mechanism, the detection mechanism further comprises a conveying pipe, the outer wall of the conveying pipe is fixedly connected with a rectangular block, and the bottom of the rectangular block is provided with a rectangular groove; when the flow speed of fluid is too high, a sliding plate can rotate rapidly, generated centrifugal force can force a first spring telescopic rod to drive the sliding plate to expand outwards, the sliding plate continues to rotate to make contact with a toothed plate after expanding outwards, then the toothed plate is forced to drive a strip-shaped block to slide leftwards, and a V-shaped block drives a special-shaped plate to slide in a sliding groove; when the groove in the special-shaped plate coincides with the sliding groove, the baffle is not blocked by the special-shaped plate any more, the pulling force borne by the second spring disappears, then the baffle is driven to move downwards, the baffle slides downwards in the second movable groove after moving downwards, and the baffle makes contact with the inner wall of the conveying pipe after sliding downwards; fluid is prevented from continuing to be conveyed through the conveying pipe.

The utility model discloses a kind of spraying devices for steel structural member production, including connecting shell, the modular mechanical arm is set in the connecting shell inside bottom end, further including the three-way adjusting mechanism being set on modular mechanical arm, the spraying mechanism is set in the front end of three-way adjusting mechanism, a kind of spraying device for steel structural member production, by spray head, centrifugal fan, flexible baffle and negative pressure recovery air duct, ensure that stable negative pressure field is formed before coating atomization, timely capture atomized particle, prevent paint mist from spreading to workshop environment, reduce the risk that operator inhales paint mist, simultaneously avoid the explosion hidden danger caused by flammable gas accumulation in workshop, cooperate primary filter device and paint mist separation equipment, solvent-based coating after separation can be recycled, water-based paint can be treated and discharged up to standard, reduce hazardous waste disposal quantity, reduce environmental protection compliance cost, efficiently recover splashed coating, reduce material loss.

The utility model relates to the field of RTO waste gas treatment, and discloses three-chamber RTO purification equipment with a purging function, which comprises a furnace body, a plurality of waste gas guide ports are arranged on the lower end surface of the furnace body in a penetrating manner, the lower end surfaces of the plurality of waste gas guide ports are fixedly connected with a waste gas guide pipe, and a filter pipe is fixedly arranged at one end, far away from the plurality of waste gas guide ports, of the waste gas guide pipe. A base is fixedly connected to the lower end face of the filter pipe, a plurality of clamping blocks are fixedly connected to the inner side wall of the filter pipe, a filter screen is fixedly connected to the inner side walls of the clamping blocks, an air inlet is fixedly connected to the end, away from the waste gas guide pipe, of the filter pipe, and an air bellow is fixedly arranged at the end, away from the filter pipe, of the air inlet; and a driving fan is fixedly arranged on one side of the air bellow. The RTO purification equipment disclosed by the utility model has the function of filtering waste gas entering the device, and also has the function of purging the internal cavity, so that tail gas residues are prevented from being contained in the RTO purification equipment.