21results about How to "Increase intake air temperature" patented technology

The utility model discloses an intake preheating system of a methanol engine, the methanol engine and a vehicle, the intake preheating system comprises a methanol heater and an intake pipe, and a heated air outlet of the methanol heater is connected with an air inlet of the intake pipe through a heater throttle valve; an air outlet of the air filter is connected with an air inlet of the air inlet pipe through a throttle valve; according to the utility model, when the engine is in cold start, hot air heated by the heater is continuously input and directly enters the air inlet header pipe of the engine, so that the temperature after the hot air is mixed with fresh inlet air is increased, the air participating in ignition is hot air, and the success of low-temperature start of the methanol engine is further realized.

The utility model relates to a drying device, in particular to an efficient hot air circulation dryer which comprises a drying box, the drying box comprises a box body, a plurality of drying discs are arranged in the box body, drying pipelines are arranged among the drying discs, a circulation system is arranged on the outer side of the box body, and the drying pipelines are connected with the circulation system. By arranging the air inlet pipe and the flow dividing pipe, hot air is evenly dispersed below each layer of drying disc, the drying degree and the temperature of the hot air making contact with each drying disc are guaranteed to be consistent, the air collecting cover is arranged above each drying disc, negative pressure is generated at the air collecting cover through suction force of the air outlet draught fan, humid and hot air is exhausted, water vapor accumulation is avoided, and the drying efficiency is improved. The drying effect is improved, the drying time is shortened, the heat exchange box is arranged, the fresh air is heated through wet and hot air, the temperature difference between the fresh air and the wet and hot air is utilized, water vapor in the hot air is condensed, the air inlet temperature of a fresh air fan is increased, the temperature rising time is shortened, and the production efficiency is improved.

The application provides a gas generator set container, and relates to flue gas heat recycling. The container comprises a box body, a generator set, an exhaust system, a circulating air system and an air inlet system which are arranged in the box body. The generator set comprises an air filter, a generator set and an exhaust pipe which are in fluid communication. The exhaust system is in communication with the exhaust pipe. The circulating air system comprises a wind valve and a plurality of wind pipes which are connected in sequence. The wind valve is arranged in the first wind pipe and faces the exhaust pipe. The air inlet system comprises an air inlet box and a fan. The air inlet box is provided with an air inlet, a circulating air inlet and an air outlet which are in fluid communication. The air inlet is in communication with external air. The circulating air inlet is in fluid communication with the last wind pipe. The fan is arranged in the air outlet to blow air into the box. The application uses the temperature of waste flue gas to increase the temperature of inlet air, ensures sufficient combustion and realizes green environmental protection.

The present invention relates to the technical field of compressor cooling units, and in particular to a twin-screw compressor unit; the twin-screw compressor unit can increase the inlet temperature and pressure of gaseous refrigerant, reduce the internal limit temperature difference of the screw compressor, improve the internal temperature balance of the screw compressor and the compression efficiency of the gaseous refrigerant; it comprises a first unit and an evaporator, the first unit comprises a screw compressor body, an oil-gas separator, a condenser and a throttling and pressure-reducing component connected in sequence; the first unit also comprises a return air pipeline, a warming and boosting device, an oil-gas pipeline and an oil return component; the screw compressor body comprises a shell, a male screw rotatably installed in the shell, a female screw rotatably installed in the shell and meshing with the male screw, and a driving motor that provides power for the rotation of the male screw, and a hollow cavity is provided inside the female screw; the warming and boosting device is used for heating and pressurizing the low-temperature and low-pressure gaseous refrigerant refluxed at the evaporator.

The present invention discloses a spiral coil heating flame preheating plug and a diesel engine, belonging to the technical field of engine cold start auxiliary system. The spiral coil heating flame preheating plug comprises a flame cover, a shell, an electromagnetic induction evaporation net, an oil inlet pipe and an electromagnetic induction spiral coil, wherein the wall of the flame cover is provided with ventilation holes, and is coaxially arranged in the inner cavity of the lower part of the shell; the electromagnetic induction evaporation net is sandwiched between the inner wall of the shell and the outer wall of the flame cover; one end of the oil inlet pipe is connected to the electromagnetic induction evaporation net, and the other end can be connected to the oil pump; the electromagnetic induction wire spiral coil is spirally wound on the outer wall of the shell and the position corresponding to the electromagnetic induction evaporation net; the inner cavity of the upper part of the shell forms a mixed gas cavity. The spiral coil heating flame preheating plug can significantly improve the cold start performance of the diesel engine in extremely cold and harsh environments.

The present invention discloses a self-pressure-removing dehumidification and dust removal device for a flame photometer, which comprises: an air pressure tank, a dehumidification and dust removal box, a heat conductor and a self-pressure-removing valve. The air pressure tank is arranged on the flame photometer body, the self-pressure-removing valve is arranged at the bottom of the air pressure tank, the heat conductor is in a T-shape, the heat conductor comprises a horizontal part and a vertical part, the dehumidification and dust removal box is arranged above the horizontal part, and the vertical part is connected to the combustion furnace wall of the flame photometer. The self-pressure-removing dehumidification and dust removal device for a flame photometer of the present invention connects compressed air to the flame photometer through the air pressure tank, the heat conductor and the dehumidification and dust removal box, avoiding the compressed air being provided through pipelines; the heat conductor is used for preheating to increase the intake temperature of the flame photometer, improve the ignition rate, help reduce condensed water, and reduce gas energy consumption; the self-pressure-removing valve uses a pressure-removing method to discharge oil and condensed water in the pressure air tank, avoiding the influence of excessive impurities on the measurement of the flame photometer.

The utility model discloses a briquette coal production waste heat recovery device which comprises a recovery assembly, and the recovery assembly comprises a heat exchange box, a heat exchange pipe, a dehumidification box, a sealing plate, two positioning holes, a ventilation box, a rotating seat, a sliding column, a spring, two mounting seats, a pressing column, an air distribution plate and two guide rails. Hot air discharged by the briquette coal dryer is guided into the heat exchange pipe through the hot air inlet pipe, heat exchange work can be carried out at the moment, moisture in the hot air is adsorbed through the silica gel particles in the ventilation box, the hot air can be dehumidified, the dehumidified hot air flows into the air inlet pipe of the briquette coal dryer, and the heat exchange work can be carried out. Therefore, the air inlet temperature of the briquette coal dryer is increased, heat waste is avoided, the power consumption of the briquette coal dryer can be reduced, and the whole structure is simple. And the rotating seat is pulled upwards, so that the pressing column is moved out of the positioning hole, and the ventilating box can be taken out, so that the silica gel particles in the ventilating box can be dried or replaced.

The present invention discloses a disc-type coil heating type flame preheating plug and a diesel engine, belonging to the technical field of engine cold start auxiliary system. The disc-type coil heating type flame preheating plug comprises a flame cover, a disc-shaped electromagnetic induction coil, a disc-shaped electromagnetic induction heating element, an evaporation net and an oil pipe, wherein the wall of the flame cover is provided with ventilation holes, and the bottom of the flame cover is coaxially provided with a disc-shaped electromagnetic induction coil; the disc-shaped electromagnetic induction heating element is coaxially provided on the top surface of the disc-shaped electromagnetic induction coil; the evaporation net is coaxially provided on the top surface of the disc-shaped electromagnetic induction heating element; one end of the oil pipe passes through the flame cover and is inserted into the evaporation net, and the other end can be connected to the oil pump; the inner cavity of the flame cover forms a mixed gas cavity. The disc-type coil heating type flame preheating plug can significantly improve the cold start performance of the diesel engine in extremely cold and harsh environments.

The present invention discloses an engine start control method, device, electronic device and vehicle. The method comprises: obtaining the ambient temperature of the engine, the engine water temperature, and the voltage of the power supply device that drives the engine to start; obtaining the running state of the engine and the speed change rate of the engine within a preset time period; when the ambient temperature, engine water temperature, voltage, running state and speed change rate all meet preset conditions, determining that the engine is in a pseudo-idle condition, and performing an intake heating operation on the engine. The present invention solves the technical problem of poor engine starting performance in a low temperature environment.

The invention discloses an engine air inlet system which comprises a mixer, an air main pipe and an adjusting unit. The mixer is provided with an air inlet and an air outlet, and the air outlet is used for communicating with the air inlet end of an engine. The air main pipe communicates with an air inlet of the mixer and is used for introducing external air; the adjusting unit comprises a change-over valve, an air compressor, an air bypass pipeline and a working pipeline, the air bypass pipeline is communicated with an air inlet of the mixer, the working pipeline is used for being communicated with a pneumatic tool of the vehicle, and the change-over valve is connected with the outlet end of the air compressor, the air bypass pipeline and the working pipeline and can conduct the air compressor and the air bypass pipeline; or the air compressor and the working pipeline are conducted. According to the scheme, the air inlet temperature of the mixer can be effectively increased, freezing is prevented, compressed air generated by the air compressor can be conveyed into a pneumatic tool of a vehicle through the working pipeline when high-temperature compressed air of the air compressor does not need to compensate the air inlet temperature, and the utilization rate of the air compressor is increased.

The utility model discloses an efficient flue gas waste heat recovery device based on water vapor recirculation, which relates to the technical field of boiler flue gas waste heat recovery, and comprises a gas-fired boiler, a superheater, an enthalpy increasing device, a flue gas heat exchanger and a hot water circulation pipeline, the smoke heat exchanger is arranged on a smoke exhaust pipeline of the gas-fired boiler; the hot water circulating pipeline is sequentially communicated with the superheater, the enthalpy increasing device and the flue gas heat exchanger; a condensate water collecting bin of the flue gas heat exchanger is communicated with a water storage bin of the enthalpy increasing device through a condensate water return pipeline, the water storage bin is communicated with a spraying mechanism in the enthalpy increasing device, and the spraying mechanism is used for spraying gas in a gas inlet pipeline in the enthalpy increasing device; therefore, the utilization efficiency of high-temperature return water heat and the recovery efficiency of flue gas heat are improved, and meanwhile, the energy loss of the gas-fired boiler is reduced.

The application discloses an energy-saving natural gas internal combustion generator set, which is characterized by comprising a box shell, a generator set whole, an exhaust device, a filtering device and a preheating device; any side surface of the box shell in the width direction is provided with an air inlet, and the length direction side surface is provided with an air outlet; the exhaust device comprises an exhaust pipeline which extends upwards to the top of the box shell; the preheating device is arranged on the side surface of the box shell of the air inlet and is communicated with the air inlet; the preheating device comprises a plurality of heat exchange pipelines, and the gaps between the heat exchange pipelines are used for gas flow, so that the gas outside the box shell enters the box shell through the gaps; the preheating device further comprises an air inlet part and an air outlet part which are communicated with the two ends of the heat exchange pipelines; the air inlet part extends into the box shell and is communicated with the exhaust pipeline, and the air outlet part is communicated with the exhaust pipeline outside the box shell, so that the hot gas in the exhaust pipeline is introduced into the air channel and then is discharged into the exhaust pipeline through the air outlet part, thereby heating the cold gas flowing through the gaps and improving the temperature of the gas entering the box shell.

The invention relates to the technical field of diesel engines, and particularly discloses a quick starting device for a multi-cylinder diesel engine, the diesel engine and a method. The quick starting device is suitable for the multi-cylinder diesel engine comprising a first cylinder and a second cylinder, and comprises a connecting pipe which is arranged to be communicated with a first air inlet channel of the first cylinder and a second combustion chamber in the second cylinder; and the stop valve is connected to the connecting pipe and is arranged to selectively open and close a gas passage in the connecting pipe. According to the quick starting device, a part of pipelines and a stop valve are additionally arranged on the basis of the structure of an existing multi-cylinder diesel engine, gas in the exhaust stroke of the diesel engine can be secondarily utilized, the gas inlet temperature is increased in a self-heating mode, and then the low-temperature starting capacity is improved.

The invention provides a temperature control device and method for an intake manifold, and belongs to the technical field of engines. One end of the intercooling bypass branch is communicated with the intake manifold; the other end of the intercooler and the other end of the intercooling bypass branch are respectively communicated with the supercharger through the two-way butterfly valve; the controller is used for determining the pre-control opening degree of the two-way butterfly valve based on the target inter-cooling efficiency and the air inlet flow of the engine, determining the temperature deviation after inter-cooling based on the temperature deviation between the target air inlet manifold temperature and the actual air inlet manifold temperature, determining deviation PI control parameters based on the temperature deviation after inter-cooling, and controlling the pre-control opening degree of the two-way butterfly valve according to the deviation PI control parameters. And controlling the opening degree of the two-way butterfly valve by adopting a PID control strategy based on the pre-control opening degree and the deviation PI control parameter of the two-way butterfly valve. By additionally arranging the two-way butterfly valve, the technical problem that according to an existing scheme, the gas inlet temperature of an engine cannot be rapidly increased, and consequently a gas engine mixer and an EGR valve are frozen is solved.

The invention relates to a heat insulation cover for a stove and a gas stove using the heat insulation cover for a stove, comprising a cover body surrounded by a central hole, the cover body comprising a double-layer structure consisting of an upper cover and a middle cover, a cavity is formed between the upper cover and the middle cover, and also comprises a lower cover located below the middle cover, the bottom wall of the lower cover at least partially has at least two vertical preheating plates distributed along the circumferential direction at intervals, the lower cover is provided with an air supply port for supplying air to a burner located in the central hole at a position corresponding to the vertical preheating plates. Compared with the prior art, the advantage of the invention is that the heat insulation cover comprises an annular cover body, the cover body is a double-layer structure consisting of an upper cover, a middle cover and a lower cover, a cavity is formed between the upper cover and the middle cover, so that the upper cover can be blocked from transferring heat downward to the middle cover, and the middle cover gathers the radiant heat energy in the combustion process of the burner and conducts it downward to the vertical preheating plates, so as to preheat the air entering through the air supply port.

The invention relates to the technical field of compressor cooling units, in particular to a double-screw compressor unit. The air inlet temperature and the air inlet pressure of a gaseous refrigerant can be increased, the limit temperature difference value in the screw compressor is reduced, and the temperature balance in the screw compressor and the compression efficiency of the gaseous refrigerant are improved; comprising a first unit and an evaporator, and the first unit comprises a screw compressor body, an oil-gas separator, a condenser and a throttling depressurization assembly which are sequentially connected; the first unit further comprises a gas return pipeline, a temperature increasing and pressurizing device, an oil gas pipeline and an oil return assembly. The screw compressor body comprises a shell, a male screw rotationally mounted in the shell, a female screw rotationally mounted in the shell and meshed with the male screw, and a driving motor for providing power for rotation of the male screw, and a hollow cavity is formed in the female screw; and the warming and pressurizing device is used for warming and pressurizing the low-temperature and low-pressure gaseous refrigerant refluxed at the evaporator.

The invention discloses an adsorption material with adjustable aperture, a preparation method, an RTO pretreatment device and an RTO pretreatment process, and belongs to the technical field of waste gas treatment, the adsorption material takes a hydrophobic porous adsorption material as a matrix, and the surface of the matrix is coated with a layer of MOFs filter membrane. Furthermore, in the adsorption material, the matrix is a hydrophobic Y molecular sieve, and the MOFs filter membrane is MILs. According to the method, the pore size of the MILs porous membrane is controlled by utilizing humidity and temperature, so that the adsorption capacity of the hydrophobic Y molecular sieve under different concentrations is controlled, a peak-reducing and thickening RTO pretreatment process is provided by utilizing the adsorption material with the adjustable pore size, and stable and safe operation of an RTO device is ensured.

The utility model relates to the technical field of ozone treatment, and discloses a backflow energy-saving ozone tail gas destructor which comprises a bottom plate, a heating catalysis tank is fixedly connected to the top of the bottom plate, an electric cabinet is fixedly connected to the side wall of the heating catalysis tank, an air inlet pipe is fixedly connected to the side wall of the heating catalysis tank, and an air outlet pipe is fixedly connected to the air inlet pipe. A vortex fan and a backflow fan are fixedly connected to the top of the bottom plate, a first connecting pipe is fixedly connected between the heating catalysis tank and the vortex fan, a second connecting pipe is fixedly connected to the output end of the vortex fan, and a third connecting pipe is fixedly connected between the second connecting pipe and the input end of the backflow fan; a fourth connecting pipe is fixedly connected between the output end of the backflow fan and the air inlet pipe; according to the backflow energy-saving ozone tail gas destructor, the vortex fan and the backflow fan are used for introducing tail gas after heating catalysis treatment into the inner cavity of the gas inlet pipe and mixing the tail gas with original tail gas, so that the gas inlet temperature is increased, the subsequent heating energy consumption is reduced, and the power of the tail gas destructor is reduced.

This invention relates to an IoT-based environmentally friendly biogas generator monitoring system and a monitoring method using an intercooler with adjustable intake air temperature, for monitoring generator operation in a manner that reduces smoke generated during generator operation by mixing biogas with the intake air. The intercooler includes: an exhaust temperature sensor disposed at the intake exhaust port of the intercooler for measuring the intake air temperature; a temperature regulating pipe section that supplies uncooled intake air, bypassing a heat exchanger, based on the intake air temperature measured by the exhaust temperature sensor; and a mixing regulator that, as it slides inside the intercooler toward the intake direction, regulates the supply of uncooled intake air via the temperature regulating pipe section. When the intake air temperature is lower than a preset intake air temperature, the monitoring unit controls the mixing regulator to mix uncooled intake air that does not flow through the heat exchanger from the temperature regulating pipe section with cooled intake air, thereby supplying it to the engine in a state of regulated intake air temperature.

A device for improving the adaptability of an air-cooled fuel cell stack to a low-temperature environment includes a shell, one end of the shell is provided with an opening, a partition is provided in the shell along the axial direction of the opening, the partition divides the middle part of the inner cavity of the shell into an air inlet channel and an exhaust channel, a stack is provided on one side of the partition and at the entrance of the exhaust channel, a fan is provided in the exhaust channel, a baffle is provided in the shell, a rotating shaft is fixedly connected to the baffle, and a rotating shaft rotation drive mechanism is provided between the rotating shaft and the shell. The device for improving the adaptability of an air-cooled fuel cell stack to a low-temperature environment of the present invention recycles the heat released by the fuel cell itself during operation without additional heating, so that the fuel cell can maintain a higher operating temperature in a low-temperature environment, operate stably, and break the limitation of the low-temperature environment on the air-cooled fuel cell. The higher intake temperature makes the temperature of the front and rear sides of the fuel cell stack more uniform, which can increase its service life.

The utility model relates to the technical field of ozone tail gas destructors, and discloses an explosion-proof ozone tail gas destructor which comprises a machine shell, the machine shell is of a rectangular box body type structure, and the inner wall of the machine shell is provided with a processing cavity and an installation cavity through a partition plate. An explosion venting sheet, a gas heat exchanger, a catalytic converter and an electric heating pipe are sequentially arranged in the treatment cavity of the machine shell from top to bottom, and a gas inlet pipe is embedded in the back face of the machine shell. According to the explosion-proof ozone tail gas destructor, ozone tail gas enters equipment through a gas inlet pipe, sequentially flows through a gas heat exchanger, a conveying pipe, an electric heating pipe, a catalytic converter and a gas heat exchanger, is finally extracted by an axial flow fan and is discharged into the atmosphere, and the ozone tail gas is treated by adopting the principles of heating decomposition and catalytic decomposition in the whole scheme, the gas heat exchanger is arranged at the gas inlet end and can exchange heat with the heated tail gas, so that the gas inlet temperature is increased, the load of the electric heating pipe is reduced, the ozonolysis efficiency is improved, and the energy consumption is reduced.