79results about How to "Avoid flameout" patented technology

The auxiliarily combustion reactor of the present invention has improved nozzle structure, and the vapor process of preparing nano SiO2 is superior to available process, which has non-homogeneous temperature field and concentration field in combustion reactor, uneven retention time of material in the combustion reaction area, and easy scaling in the nozzle outlet and other demerits. The present invention has raised nano SiO2 product quality.

The invention discloses a power matching method based on torque and rotation speed compound control for a rotary drilling rig. The power matching method comprises the following steps: calculating target current according to pressure of a primary pump and a secondary pump and set target torque percentage; setting a speed drop value during interconversion of a rotation speed regulating module and a torque regulating module; when a real-time speed drop value of an engine is smaller than a set value, adopting the torque regulating module to carry out compensation regulation on target current; when the real-time speed drop value of the engine is greater than the set value, adopting the rotation speed regulating module to carry out compensation regulation on the target current; and outputting a final current value to an inverse proportion pressure-reducing valve to control a displacement regulator to change displacement of the primary pump, thereby controlling input power of the primary pump in real time. The power matching method is simple, reliable and high in practicability, has the characteristics of rotation speed control rapidity and torque control predictability, can effectively avoid severe speed drop of the engine, avoids a shut-down phenomenon, improves operation efficiency of the rotary drilling rig and guarantees operation stability of a control system.

The present invention relates to an apparatus and method for controlling a hydraulic pump of a construction machine. The disclosed apparatus of the present invention comprises: a pump control unit which controls a discharge pressure of the hydraulic pump driven by an engine, wherein the pump control unit includes a set pressure value calculation unit which calculates a set pressure value on the basis of an engine output torque estimation value or an engine RPM; and a failure- handling unit which selects either the set pressure value and a pressure instruction value in accordance with whether or not failures of a swash plate angle sensor have occurred, and outputs the selected value.; According to the present invention, the set pressure value is calculated on the basis of the engine output torque estimation value, and the pump is controlled in accordance with the calculated set pressure value. Thus, it is possible to prevent a suction torque value of the pump from exceeding the maximum torque value of the engine even upon the occurrence of failures in the swash plate angle sensor, thereby preventing engine stall even upon the occurrence of failures in the swash plate angle sensor in a high-load work condition of the engine.

Apparatus for regulating the flow rate of fuel to a turboshaft engine in acceleration or deceleration, the engine having a free turbine and a core engine, the apparatus including sensors transmitting information to regulator elements, the information relating: to a first speed of rotation NTL of the free turbine; to a second speed of rotation Ng of the engine's gas generator; to an internal temperature T4 of the gas at the inlet to the free turbine; to the external pressure; and to the external temperature. The apparatus further includes control elements activated by the regulator to actuate a fuel metering system of the engine. The regulator evaluates the flow rate of fuel to be supplied to the engine in acceleration or deceleration on the basis of at least one optimum regulation relationship, which determines a main modulated flow rate as a function of a modulated speed of rotation.

The invention relates to a method for diagnosing a switching signal of a clutch. By the method, the reliability of the switching signal of the clutch can be effectively diagnosed. The technical scheme of the method is that: the method for diagnosing the switching signal of the clutch comprises the following steps that: 1, an engine control unit identifies the change of gear information; 2, when the gear information changes, the engine control unit judges whether the switching signal of the clutch changes; if so, the engine control unit does not execute any operation; otherwise, the engine control unit executes a step 3; and 3, an engine fault unit starts fault alarm. The reliability of the switching signal of the clutch relates to the safety and drivability of an overall vehicle; at present, methods for diagnosing a single switching signal are a few; and by the method, the reliability of the switching signal of the clutch can be diagnosed through overall vehicle gear information and the phenomena of revolution speed increase of an engine, and engine flameout during gear shifting can be effectively avoided.

This invention discloses a ceramic air heating furnace with the emulsification slurry wind burning device including vertical air heating furnace and the emulsification slurry wind burning device. The air heating furnace includes an egg-shape furnace chamber and the heat air opening. The emulsification burning device consists of a front end wall, back end wall and the side crust inside which forms a cylindraceous burning space. There are at least one emulsification burning device and at least a fuel burning device or at least air burning device. The back end wall has an outlet opening which connects to the egg-shape furnace chamber by the pipe. The side of the crust sets two or more tangential wind inlet openings and there are at least one dreg outlet opening near the back end wall at the side of the bottom of the burning space. The ceramic air heating furnace of this invention utilizes the emulsification burning device and the emulsification slurry as fuel so as to save the cost and maximize the utilization of the resource.

The invention discloses an engineering machinery limit load control method and an engineering machinery limit load control device, which are applied to engineering machinery configured with a hydraulic system. The method comprises the following steps: obtaining a nominal power of an engine at the current rotate speed; determining the discharge threshold of an oil pump according to the nominal power, and arranging the upper limit of the controllable discharge capacity by an action handle according to the discharge threshold, wherein the upper limit of the discharge capacity is not more than the discharge threshold. By adopting the invention, the phenomenon of engine flameout resulting from the fact that the output power is larger than the nominal power can be prevented.

The invention discloses an ignition optimal control method for a sintering machine. The ignition optimal control method comprises the steps that valves controlling natural gas and air flow are connected with PLC / DCS systems correspondingly, and PID closed-loop control is adopted; a flow follow-up regulation mode is used, an air-fuel ratio and natural gas flow are set, and according to the formulathat natural gas flow*air-fuel ratio=air flow, the set air flow is obtained; then an ignition temperature control mode is used, and according to the deviation of target temperature and the current temperature, a new natural gas flow target value is calculated; then an ignition strength control module is used, the current ignition strength is obtained, and then target ignition strength is given according to the current ignition strength; and then according to the target ignition strength, the natural gas flow needing to be achieved is obtained, and then air flow is obtained through the air-fuelratio. According to the ignition optimal control method, a waste or flameout phenomenon of natural gas is avoided, meanwhile stability of PID closed-loop control in the regulation process is ensured,instable burning is prevented, and thus operation of the sintering machine is safer, more reliable and more stable.

The invention provides a hill start assisting system for a load-carrying vehicle and a control method thereof. The system comprises a two-position three-way solenoid valve and a control module connected with the two-position three-way solenoid valve. The two-position three-way solenoid valve is in series connection with a loop between a hand-braking handle and a relay valve. The relay valve is connected with a parking brake. According to the method, hill start assistance is conducted on the vehicle through the hill start assisting system. By the adoption of the system and the method, automatic coordination of clutch engaging and hand braking release through the hill start assisting system is achieved, the phenomenon of slide or flameout of an AMT vehicle during hill start is avoided, and smooth and steady start of the vehicle on a ramp is achieved; safety and simplicity are achieved, and engineering realization is easy; the system and the method can be applied to design of any hill start assisting control system of the load-carrying vehicle carrying an AMT, so that the pavement adaptability of the vehicle is improved.

This invention shows a fossil oil serum coke burning device including the shell that consists of fuel pouring wall, flame outpouring wall and the side wall. There is a burning space inside the shell of which the side wall sets interval two or more tangential intakes. The fuel pouring wall sets at least three atomization burners of fossil oil serum coke and at least one oil burner together with at least a gas burner. The inside diameter of the burning space inside the shell is 1 / 4 to one time of the vertical distance between the inside wall of the flame outpouring wall and the inside wall of the fuel pouring wall.

The invention discloses a fuel filter filtering element which comprises a filtering element shell which comprises a medium supporting part, a taper part and an in-out opening part which are connectedin sequence, and the cross section of the taper part is in a horn shape; a filtering body is arranged on the inner surface of the medium supporting part in an interference sealing fit manner, the filtering body is formed by tightly winding two layers of filtering media, the structures of the two layers of filtering media are the same, and the two layers of filtering media comprise flat-plate filter paper and corrugation filter paper; one end of the corrugation filter paper in the width direction and is flush with the flat-plate filter paper, an interval is reserved between the other end of thecorrugation filter paper and the end of the flat-plate filter paper, and a glue solution pasting layer is arranged at the interval; the closed end of the first layer of filtering medium is flush withthe opening end of the second layer of filtering medium; and an anti-flameout structure is arranged on the position, where the taper part is located, of the filtering element shell. By means of the fuel filter filtering element, engine flameout can be prevented, and the service life of the fuel filter filtering element is prolonged.

The invention discloses a diffusion type full-premixing burner comprising a fan, a transition section, a mixing section and a machine head which are connected sequentially. Communicated cavities are formed in the transition section, the mixing section and the machine head. A center gun is arranged in the cavities and extends from the transition section to the machine head. The transition section is provided with a first gas inlet. The center gun communicates with the first gas inlet through a first conveying channel. A burning nozzle is arranged at the end, at the machine head, of the center gun. The mixing section is provided with a second gas inlet. A gas ring communicating with the second gas inlet through a second conveying channel is arranged in the mixing section. The center gun is sleeved with the gas ring. Air conveyed in by the fan is mixed with gas conveyed in by the gas ring at the mixing section. The center gun penetrates out of the end of the machine head. The machine headis provided with a plurality of nozzles in the end position. With the structure, the problems that fire return and blocking are liable to occur to a metal fiber surface burning premixing type burner,and nitrogen oxide emissions of a diffusion type burner are large are at least solved.

The invention discloses a steel rail tread sander, relates to a steel rail maintaining device and aims to solve the problem of engine stalling when a sanding wheel rotates in the width direction of asteel rail. According to the technical scheme, the steel rail tread sander is characterized by comprising a rack, a grinding part adjusting mechanism, a grinding part and an engine connected with a grinding part to drive the grinding part to rotate, the grinding part adjusting mechanism is arranged on the rack, the grinding part and the engine are arranged on the grinding part adjusting mechanism,a supporting frame is arranged above the rack, an oil tank is arranged on the supporting frame and comprises an oil outlet, the engine comprises an oil inlet, a flexible oil supply pipe is connectedbetween the oil outlet and oil inlet, and the oil outlet is higher than the oil inlet. The oil tank is always located above the rack, and the oil outlet of the oil tank is higher than the oil inlet. Oil in the oil tank constantly flows into the engine, and the effect of effectively avoiding an engine stalling phenomenon is achieved.

The invention provides a clutch delaying device used in a vehicle starting process, comprising a friction block and an elastic ejector pin mechanism arranged on the upper part of a clutch rocker, wherein the elastic ejector pin mechanism comprises a sleeve and an ejector pin arranged in the sleeve; the bottom of the sleeve is hinged on a rack; a supporting spring is arranged between the internal end surface of the ejector pin and the bottom of the sleeve; a pulling rod is hinged at the side part of the sleeve; and the other end of the pulling rod is a driving end that is connected with a driving mechanism. In the clutch delaying device, by arranging the friction block and the elastic ejector pin mechanism on the upper part of the clutch rocker, the closing of the clutch rocker can be delayed after a clutch pedal is loosened, thereby prolonging the duration of half-clutching state in the middle of the process, therefore, an engine gradually drives a transmission to accelerate so as to avoid the phenomena of shaking of a vehicle or spark extinction of the engine after the clutch is quickly closed.

The invention discloses an automobile oil quantity monitoring alarm which comprises an oil quantity collecting module, an oil quantity signal processing module and an alarm module; the oil quantity collecting module is arranged inside an oil tank for collecting the oil quantity inside an automobile oil tank, the signal output end of the oil quantity collecting module is connected with the oil quantity signal processing module, the oil quantity signal processing module is used for processing oil quantity signals collected by the oil quantity collecting module, the oil quantity signal processingmodule comprises an amplifier and a trigger which are connected in sequence, the output end of the trigger is connected with a caution module, and the caution module is used for giving an alarm, andprompting that the oil quantity of an automobile owner is excessively low. The oil quantity of the automobile can be detected in real time, an alarm can be given in time when the oil tank lacks oil, the owner of the automobile is reminded to refuel in time, the phenomenon that flameout is caused due to the fact that the automobile lacks oil is avoided, safety traffic of the automobile is ensured,and the automobile oil quantity monitoring alarm is simple in structure, convenient to use, safe and reliable.

The present invention discloses an industrial boiler adopting emulsified coke slurry combustion equipment. It includes boiler self-body and emulsified coke slurry combustion equipment. The boiler self-body includes furnace cavity, boiler barrel set over the furnace cavity, water pipe which is set in the upper portion of said furnace cavity and is adjacent to the side wall of furnace cavity and fire pipe which is set in the central zone of boiler barrel and is soaked in the water of boiler barrel interior. Said emulsified coke slurry combustion equipment includes a shell body formed from front end wall, rear end wall and side wall, in said shell body interior a cylindrical combustion space is formed, on the front end wall are set at least one emulsified coke slurry combustor, at least one oil combustor and / or at least one gas combustor and on the rear end wall an outlet is cut, said outlet is communicated with the furnace cavity. Said invention also provides the working principle of said industrial boiler and its concrete operation method.

The invention relates to the technical field of heating furnaces, in particular to a burners control method for each furnace section of a soaking pit, wherein a smoke outlet is formed in each furnacesection. The method comprises the following steps of dividing all burners in a target furnace section into four types of burner groups; and adjusting the switching degree of each burner in the four types of burner groups to a corresponding preset opening degree, so that the switch degree of the first type burner group, the second type burner group, and the third type burner group is increased in sequence, and the switch degree of the fourth type burner group is reduced compared with the switch degree of the third burner group, thus the false judgment of a secondary control system of the soaking pit caused by higher temperature of a zone far away from a smoke outlet is effectively avoided, a stable combustion state is still ensured when the discharge temperature of a slab is lower, a flameout phenomenon is avoided, a secondary combustion of the smoke outlet is also reduced, the energy consumption of the heating furnace is reduced, the heating instruction of the slab is improved, and theservice life of a heat exchanger is prolonged.

This invention discloses an emulsification burning device that consists of a front end wall, back end wall and the side crust inside which forms a cylindraceous burning space. There are at least one emulsification burning device and at least a fuel burning device or at least air burning device. The side of the crust sets two or more tangential wind inlet openings each of which includes two or more tangential wind inlet openings which can make the tangential wind inside the burning space form circumfluence along the side of the crust. There are at least one dreg outlet opening near the back end wall at the side of the bottom of the burning space. The cross section of the dreg outlet opening lies between the cross section of the tangential wind inlet opening near the back end wall and the inside of the back end wall. The emulsification burning device of this invention can realize the liquid slag avoiding the deposition and coking of the flue gases on the heating surface.

The invention discloses a heating and condensing device for improving the sensitivity of an ICP-MS instrument. The heating and condensing device is characterized in that a heating part selects an infrared lamp tube with the same length as a double-channel atomizing chamber as a heating source, and the heating atomizing chamber is connected with a condensing fog chamber by using a straight quartz tube to form the heating and condensing device. Infrared radiation heating is adopted, the size of fog drops generated by atomization can be further reduced, part of solvent (water) becomes water vapor, then the water vapor is condensed through the condensation fog chamber, and the problems that most of the water vapor enters plasma (ICP), plasma energy consumption is caused, and even ICP flameoutis caused are solved. Through the combination of heating and condensation, the sensitivity of an ICPMS instrument is greatly improved, for 47 common determination elements, the signal enhancement factor of most elements is improved to 5-6 times, and the improvement amplitude of some high ionization energy elements can reach 7-8 times.

The invention discloses a heat-conducting oil stove used the emulsifying burnt plasma vortex burning device. It includes the oil stove body and the emulsifying burnt plasma vortex burner which includes the shell composed by the front wall, the back wall and the side wall. The burning room is formed in the shell. At least one emulsifying burnt plasma vortex burner and at least one oil burner or at least one gas burner is set in the front wall; an outlet is set in the back wall which is connected with the flame inlet of furnace chamber by the warm-air pipe. The two or above groups of tangential wind inlets are set on the shell side wall alternately; the outlet of the liquid slag is on the side wall of the burning room bottom which is near to the back wall. The invention uses the emulsifying burnt plasma as the fuel, so it can save the cost.

The invention discloses an electric car with a self-power-generation function. The electric car with the self-power-generation function comprises a frame, wheels, handlebars and a power device, wherein the power device comprises power-generation hubs, an electric energy processing module and a battery module; the power-generation hubs are arranged on the front wheel and / or the rear wheel of the electric car, both the electric energy processing module and the battery module are arranged in the frame of the electric car, the power-generation hubs are connected with the battery module through theelectric energy processing module, and the electric energy processing module comprises a bridge rectifier unit, a filter unit and an intelligent current identification unit which are sequentially connected; the intelligent current identification unit is connected with the battery module, the battery module comprises a battery management unit and a storage battery which are sequentially connected,and the storage battery is connected with an electric car battery through a power line. According to the electric car with the self-power-generation function, power is generated through rotation of the wheels and used by a display instrument and the electric car battery, so that the flameout phenomenon caused by power shortage of the electric car is prevented, safe running of the electric car isguaranteed, the structure is simple, use is convenient, and the electric car with the self-power-generation function is safe and reliable.

The invention discloses a telescopic decelerator for a mini tiller. The telescopic decelerator comprises a shell, a cavity, a push plate, a push rod, a one-way hydraulic-oil flowing device, an oil seal, an oil seal holder and hydraulic oil. The telescopic decelerator has a function of controlling rapid upward movement and slow downward movement of a tillage cutter; therefore, after the telescopicdecelerator is mounted on an existing four-wheel-drive mini tiller, frequent engine stalling caused by the fact that misoperation during low-speed running of the four-wheel-drive mini tiller causes the tillage cutter to be inserted into soil blocks and further leads to instant load increase is avoided. After the telescopic decelerator for the mini tiller is applied to the four-wheel-drive mini tiller, operations of the four-wheel-drive mini tiller are simplified, and the labor intensity of operators is reduced. The telescopic decelerator is simple in structure, and convenient to maintain.

The invention discloses a power matching method based on torque and rotation speed compound control for a rotary drilling rig. The power matching method comprises the following steps: calculating target current according to pressure of a primary pump and a secondary pump and set target torque percentage; setting a speed drop value during interconversion of a rotation speed regulating module and a torque regulating module; when a real-time speed drop value of an engine is smaller than a set value, adopting the torque regulating module to carry out compensation regulation on target current; when the real-time speed drop value of the engine is greater than the set value, adopting the rotation speed regulating module to carry out compensation regulation on the target current; and outputting a final current value to an inverse proportion pressure-reducing valve to control a displacement regulator to change displacement of the primary pump, thereby controlling input power of the primary pump in real time. The power matching method is simple, reliable and high in practicability, has the characteristics of rotation speed control rapidity and torque control predictability, can effectively avoid severe speed drop of the engine, avoids a shut-down phenomenon, improves operation efficiency of the rotary drilling rig and guarantees operation stability of a control system.

The invention discloses an automobile clutch and an accelerator linking device. An upper end of a buffer oil cylinder is connected with the upper and lower ends of a pedal rod of a clutch through a connecting rod; an adjusting lever is movably connected with a vehicle frame; an upper end of a servo oil cylinder is movably connected to the pedal rod of an accelerator through a plunger piston, and the lower end of the servo oil cylinder is connected with the adjusting lever and movably connected to the vehicle frame; and a lower oil chamber of the buffer oil cylinder is communicated with a lower oil chamber of the servo oil cylinder through an oil pipe. When the clutch is stepped on for a gear change, a slide valve in the buffer oil cylinder is pushed to a lower dead center; oil in the lower oil chamber is discharged to an upper part and is pressed down the lower oil chamber of the servo oil cylinder through the oil pipe; and an oil pipe passage is closed at the same time, so that the oil is accumulated in the lower oil chamber of the plunger piston to prevent the accelerator from being stepped on. After the gear change, the buffer oil cylinder restores the clutch based on the technical requirements of fast-slow-fast so as to avoid the phenomenon that the clutch is closed too fast; and an accelerator pedal connected with the servo oil cylinder enables the clutch to be well matched with the accelerator along with the actions of the clutch and the buffer oil cylinder for fuelling.