18results about How to "Improve emission performance" patented technology

The invention provides a methanol engine. The methanol engine comprises an air inlet channel, an electronic injection assembly, an atomization assembly and a power assembly. The electronic injection assembly is suitable for injecting methanol steam into the air inlet channel. The atomization assembly is partially arranged in the air inlet channel, the atomization assembly is suitable for optimizing the jet flow field of methanol steam jetted by the electronic injection assembly, and non-vaporized methanol liquid drops jetted by the electronic injection assembly drop on the atomization assembly to be heated and vaporized to form methanol steam through an electric heating field. And the mixed gas is mixed with methanol steam injected by the electronic injection assembly and air in the air inlet channel to form combustible mixed gas. The power assembly is arranged at the gas outlet end of the gas inlet channel and suitable for converting chemical energy of the combustible mixed gas into mechanical energy and discharging the first gas through the gas outlet channel.

The utility model relates to a discharging device, in particular to an automatic discharging device for flue gas purification in rubber production. The utility model provides an automatic flue gas purifying and discharging device for rubber production. A rubber production flue gas purifying and automatic discharging device comprises a filtering frame, the left side of the filtering frame is communicated with a flue gas inlet pipe used for discharging flue gas into the filtering frame, the right side of the filtering frame is communicated with a flue gas outlet pipe, the inner left portion of the filtering frame is evenly connected with six storage plates used for containing activated carbon in a clamped mode, and the activated carbon can absorb harmful substances in the flue gas; seven clamping plates are uniformly clamped at the inner right part of the filtering frame, and filtering cotton plates for filtering dust in smoke are placed in the seven clamping plates. According to the utility model, harmful substances, impurities and dust in flue gas are filtered through the activated carbon and the filter cotton plate, so that the effect of purifying the flue gas can be achieved, the circulation of the flue gas can be accelerated by utilizing the ventilation fan, the purpose of automatic emission is achieved, and a better emission effect is achieved.

The present invention provides an external flow-guiding fire-proof check valve, comprising a valve body and a valve flap, wherein the valve body is mounted on a residential exhaust duct and is located outside the residential exhaust duct, the valve body comprises a valve housing and a valve seat, the valve housing is used to provide an exhaust passage, the valve seat is arranged on the valve housing and is located on the air inlet side of the exhaust passage, the air outlet side of the exhaust passage is connected with the air inlet of the residential exhaust duct, the valve flap is rotatably arranged on the valve housing and cooperates with the valve seat to open or close the exhaust passage, wherein the valve housing is provided with a flow-guiding portion, and the flow-guiding portion cooperates with the opened valve flap to guide the gas to be discharged obliquely upward from the air outlet side of the exhaust passage. The present invention places the fire-proof check valve as a whole completely outside the residential exhaust duct, does not occupy the internal space of the residential exhaust duct, does not hinder the smoke discharge of the residential exhaust duct, and has the advantages of small system wind resistance and good smoke discharge effect.

The utility model relates to the technical field of methanol cracking gas engines, in particular to a high-explosion-resistance methanol cracking gas engine system utilizing waste gas backflow. The system comprises an engine part and an engine control part, the engine part comprises a spark plug, a sensor, an engine air cylinder, a fuel air inlet pipeline, an air inlet pipeline, a waste gas backflow pipeline and a mixed gas pipeline, the engine control part is connected with the spark plug and the sensor, and the fuel air inlet pipeline is connected with the engine air cylinder. The air inlet pipeline and the waste gas backflow pipeline are combined and connected to a mixed gas pipeline, and the mixed gas pipeline is connected with an engine air cylinder. According to the utility model, the problem of knocking of the methanol cracking gas engine is solved by controlling and delaying the ignition time of the sparking plug, adjusting the fuel and adjusting the ratio of backflow waste gas to air, and meanwhile, the NOx emission performance of the engine is improved by utilizing a waste gas backflow mode.

The utility model belongs to the technical field of gas turbines, and relates to a bifurcated exhaust pipe of a gas turbine, which meets the emission requirements of smoke on two sides. The forked exhaust pipe of the gas turbine has the advantages of being simple in structure, stable in performance, efficient, environmentally friendly and the like. The bifurcate exhaust pipe can effectively meet the requirement for simultaneous emission of smoke on the two sides, the bifurcate exhaust pipe with the divergence angle smaller than 7 degrees and the smooth streamline face is adopted, exhaust noise, heat loss and emission resistance are reduced, the structural strength, rigidity and heat resistance of the bifurcate exhaust pipe are enhanced, and the overall performance and efficiency of the gas turbine are improved. In addition, in a high-temperature environment, the bifurcated exhaust pipe can still keep a good emission effect and durability.

The utility model provides a hydrogen supply mechanism of a diesel engine, which relates to the technical field of diesel engines and comprises a shell body, the shell body comprises a left shell, and a first insulating sheet is arranged on one side of the left shell. According to the utility model, the generated hydrogen is supplied into the cylinder of the engine and is mixed with diesel oil for combustion and acting, and the combustion rate of the hydrogen is higher than that of the diesel oil, so that the hydrogen can be quickly ignited and the diesel oil can be quickly ignited after compression ignition, and the combustion performance is improved, so that the diesel oil can be quickly ignited and fully combusted; therefore, harmful substances are reduced, the emission performance of the engine is improved, and environmental protection is facilitated; meanwhile, the combustion product of hydrogen is only water, so that the environment is not polluted; in addition, diesel oil is rapidly ignited and fully combusted through hydrogen, and under the condition that the same power is output, the injected diesel oil fuel is reduced, and the fuel economy of the diesel engine is improved.

The invention discloses a secondary ignition circuit and method based on HCS08SG. The secondary ignition circuit comprises a power supply processing module, a signal processing module, an IGBT (Insulated Gate Bipolar Translator) driving module, a sampling module and an HCS08SG single chip microcomputer, wherein the power supply processing module is used for supplying power to the whole circuit; the signal processing module is connected between the ECU and the HCS08SG single-chip microcomputer and used for collecting ECU signals, processing the ECU signals and outputting the ECU signals to the HCS08SG single-chip microcomputer; the IGBT driving module is connected between the HCS08SG single chip microcomputer and an IGBT and is used for driving the IGBT to carry out first ignition and second ignition according to the control signal of the HCS08SG single chip microcomputer; the sampling module is connected between the HCS08SG single chip microcomputer and the IGBT and is used for detecting the primary current flowing through the IGBT and feeding back the detected current information to the HCS08SG single chip microcomputer; the HCS08SG single chip microcomputer is used for outputting a control signal to control the IGBT driving module to drive the IGBT to perform first ignition; after the first ignition, the HCS08SG single-chip microcomputer performs sampling detection at the emitting electrode of the IGBT through the sampling module; when it is detected that the primary current of the IGBT is reduced, the HCS08SG single-chip microcomputer delays for a certain time and then outputs a control signal to control the IGBT driving module to drive the IGBT to conduct secondary ignition. According to the invention, the ignition coil can perform secondary ignition, so that the ignition coil can still provide relatively high energy at a low rotating speed, fuel oil is combusted more sufficiently, the fuel oil combustion rate and ignition energy are improved, better power is provided, the ignition stability of an engine is maintained, and the oil consumption and emission performance of the engine are improved.

The utility model relates to the technical field of washing machine drainage valves, in particular to a washing machine drainage valve with a drainage acceleration structure, which comprises a main drainage pipe, a valve body is arranged on the upper surface of the main drainage pipe, a top ring is arranged on the top surface in the valve body, and a pressure sensor is arranged in the top ring. A telescopic cylinder and a spring body are sequentially arranged on the lower surface of the top ring from left to right; and the piston ring is installed on the lower surface of the spring body, and the piston ring is matched with the valve body. Certain pressure can be generated on the pressure sensor through compression of the spring body, after the pressure sensor senses the pressure, the pressure sensor sends out an electric signal to start the telescopic rod to ascend, and therefore the telescopic rod can drive the side block and the check block to ascend in the acceleration frame, and an opening in the acceleration frame is opened; water discharge can be accelerated, the overall discharge effect is good, and frequent manual operation is not needed.

The invention relates to the technical field of automobile control, in particular to a carbon tank opening degree control method and device, a medium and a vehicle control unit. In the dynamic opening and closing process of the carbon tank, when the carbon tank is not in the diagnosis process, the target opening degree of the carbon tank is obtained, and filtering is calculated according to the current opening degree of the carbon tank and the target opening degree to obtain the filtered carbon tank opening degree; and according to the opening of the filtering carbon tank, driving the carbon tank to open and close for several times, so that the error between the current opening and the target opening of the carbon tank is within the preset filtering range. On the premise that carbon tank diagnosis is prevented from being affected, the opening degree of the carbon tank is properly controlled in the opening and closing process of the carbon tank, so that rotating speed fluctuation caused by air-fuel ratio changes due to dramatic changes of the opening degree of the carbon tank is improved. And the driving performance, the emission performance and the fuel economy of the motorcycle under the condition are improved.

The application discloses a kind of carbon load determination method, device, vehicle and storage medium of particle trap, the method comprises: obtaining the current carbon load pressure difference of particle trap;Obtain the carbon load pressure difference correction value corresponding to particle trap of vehicle under current working condition;According to carbon load pressure difference correction value, the current carbon load pressure difference is corrected, and actual carbon load pressure difference is obtained;According to actual carbon load pressure difference, the actual carbon load of particle trap is determined.The application not only helps to reduce fuel consumption, but also can significantly improve the use performance of particle trap, and then optimizes the emission performance and economic performance of vehicle.

The invention provides efficient desulfurization equipment and desulfurization method for copper smelting flue gas. The efficient desulfurization equipment comprises a desulfurization tower, an exhaust fan is arranged in the desulfurization tower, a furnace body cabin is arranged at the top of the desulfurization tower, one end of the top of the furnace body cabin is communicated with an alkali desulfurization cabin, and an alkalization assembly is oppositely arranged at the gas outlet end of the alkali desulfurization cabin; the liquid outlet end of the alkalization assembly is in a spraying type, and the spraying direction is opposite to the gas flow guide direction of the alkali desulfurization cabin; the alkalization assembly is communicated with an impurity removal cooling cabin, the impurity removal cooling cabin is located on the outer peripheral side of the alkali desulfurization cabin, a cooling liquid box is arranged at the end, close to the furnace body cabin, of the impurity removal cooling cabin, the top of the cooling liquid box is communicated with an oxidation box body, gas flowing out of the cooling liquid box flows to the oxidation box body in a one-way mode, and the upper portion of the oxidation box body is connected with a dust removal cabin; according to the flue gas desulfurization device, the flue gas is guided by the pipeline type equipment to realize the twice desulfurization effect in a variable-speed and variable-temperature manner, so that the one-time full-impurity desulfurization effect can be realized, the more optimized flue gas emission purification degree is obtained, and the environmental pollution is reduced.

The present invention provides a catalytic article comprising: a) a substrate; b) a first zone coated with a first catalytic layer; and c) a second region coated with a second catalytic layer, wherein the first catalytic layer comprises platinum supported on a ceria-zirconia mixed oxide or a ceria-alumina composite, or both; and rhodium supported on the ceria-zirconia mixed oxide or ceria-alumina composite, or both, wherein the second catalytic layer comprises palladium supported on the ceria-zirconia mixed oxide, alumina, ceria-alumina composite, or any combination thereof; and rhodium supported on a ceria-zirconia mixed oxide, alumina, ceria-alumina composite, or any combination thereof wherein the first zone occupies an inflow end portion of the substrate and the second zone occupies an outflow end portion of the substrate. The invention also provides a method for preparing the catalytic article. The invention further provides an exhaust gas treatment system for an internal combustion engine comprising a catalytic article according to the invention. The invention further provides a method of treating a gaseous exhaust stream comprising hydrocarbons, carbon monoxide and nitrogen oxides.

The utility model discloses a kind of top-mounted vehicle-mounted air conditioners, including the roof body of the air conditioner cowling assembly being provided with air conditioner outer machine on inside, air conditioner outer machine includes shell, condenser and evaporator assembly arranged in parallel with the parallel arrangement of roof body are arranged in shell, evaporator assembly is equipped with condensate water flow guide structure;With the position of evaporator assembly corresponding roof body and shell between pad plate are equipped, pad plate and air conditioner cowling assembly are connected together, and air circulation communication structure is equipped between air conditioner cowling assembly and evaporator assembly;With the position of condenser corresponding shell and roof body between spacing, and multiple flow-through holes are equipped on shell. The thickness of air conditioner outer machine is small, the height of whole vehicle is reduced, the passability is guaranteed, and the removal effect of condensate water is improved;Air conditioner cowling assembly realizes small-size design, not only guarantees the normal circulation flow of air, but also reduces the space occupancy rate in vehicle, is convenient to disassemble and repair and maintenance.

This application discloses a burner and a cooktop, belonging to the technical field of gas stoves. The burner includes a main body and a fan assembly. The main body has a gas blowing channel, at least one flue gas recirculation channel, and multiple flame outlets. The gas blowing channel has a first inlet and a first outlet. The flue gas recirculation channel has a flue gas recirculation port and a flue gas outlet. The first inlet is connected to the flue gas outlet, and the first outlet is connected to at least some of the flame outlets. The first outlet, the flue gas recirculation port, and the flame outlets are all upward-facing. At least a portion of the fan assembly is disposed within the main body. The fan assembly is used to form an airflow from the first inlet to the flame outlets within the gas blowing channel. This embodiment can extend the residence time of the flue gas generated by the burner, thereby improving the heat exchange effect between the flue gas and the bottom of the cookware, and thus improving thermal efficiency.

The invention relates to the technical field of diesel engines, in particular to an optimal design method for an oil-gas separator of a high-power diesel engine. The method comprises the following steps: determining demand analysis of the oil-gas separator; determining a separation technology and a structure of an oil-gas separator based on the demand analysis; determining detailed parameters of the oil-gas separator; simulation and analysis are carried out, and then part design and strength and safety evaluation are carried out. The blow-by amount of the crankcase of the diesel engine is accurately designed; oil-gas separator design or model selection is optimized; the filtering efficiency of the oil-gas separator is optimized; the emission performance of the diesel engine is optimized; the engine oil consumption rate of the diesel engine is reduced; and economic benefits and social benefits of the diesel engine are improved.

The invention discloses a multi-mode clutch-switching-free electro-hydraulic coupling type stepless speed change device which comprises a power source transmission line coupling unit, an engine transmission line coupling unit, an engine transmission line coupling unit and an engine transmission line coupling unit. The output end transmission line coupling unit comprises a hydraulic stepless transmission line and a mechanical-electric-hydraulic composite transmission middle line arranged at the bottom of the hydraulic stepless transmission line; mode switching of the engine transmission route, the hydraulic stepless transmission route and the mechanical-electric-hydraulic composite transmission intermediate route is achieved through a synchronizer. The multi-mode clutch-free double-gear synchronizer has the beneficial effects that through the multi-mode clutch-free switching electric drive and hydrostatic transmission coupling design, synchronizer double-gear switching is achieved, the electromechanical-hydraulic integration level is simplified, and the control difficulty is lowered. Multiple transmission modes and gear combinations are set, the adaptability of the transmission is improved, the situation that input shunting and output shunting of the same planet row coexist in a specific mode can be formed, and working points of an engine and a motor generator can be changed so as to improve the dynamic property under different driving working conditions and operation working conditions.

This invention discloses a control method for a piston cooling spray hook, relating to engine control technology. The method involves acquiring the engine's oil pressure and temperature, and combining these to obtain a first oil flow requirement for the oil pump. A second oil flow rate for the piston cooling spray hook is calibrated based on the engine's real-time throttle opening, and the change in oil flow rate of the piston cooling spray hook is obtained based on the change in the second oil flow rate. This change in oil flow rate is then superimposed on the first oil flow requirement to obtain a target flow requirement. Finally, the oil pump is controlled to output an oil flow rate consistent with the target flow requirement. This invention achieves coordinated control of the oil pump flow rate and the piston cooling spray hook flow rate, ensuring lubrication and cooling functions are met under high loads, while reducing oil flow rate and decreasing the driving power of the oil pump under low loads.

The present invention discloses an intelligent petroleum proppant raw material conveying equipment, which relates to the technical field of petroleum exploitation, and comprises a conveying mechanism for conveying the petroleum proppant raw material to the interior of an oil field. A control module is loaded on the conveying mechanism, and the control module collects a first historical training data set in advance. Based on the first historical training data set, the control module trains a first machine learning model for predicting the injection flow value of the petroleum proppant raw material in the conveying mechanism; the control module collects injection pressure data, formation pressure data and formation temperature data of the conveying mechanism in real time; the flow rate of the petroleum proppant raw material injected into the oil wellbore by the conveying mechanism is precisely controlled, and it can be ensured that the petroleum proppant raw material is injected into the oil reservoir at an optimal rate, thereby achieving the best formation coverage and support effect, which is helpful to improve the production efficiency of the oil reservoir and increase the output.