45results about How to "Meet emissions" patented technology

The invention essentially relates to a filter material for treating sewage, in particular to relate to a filtering material used in the sewage process technique of aeration biology filtering pool. The filtering material of sewage process of the aeration biology filtering pool is characterized in that the components of the raw material of the filtering material consists of by fly ash of 60 to 75 percent, portland cement of 10-20 percent, quick lime of 10-20 percent, gypsum 3-5 percent and degreasing aluminum powder of 0.06-0.08 percent. The preparation includes the following steps of pulping, stirring, pouring, cutting forming and ball milling. Under the optimal proportion of the air and water and the optimal water force load, the life sewage is treated by the aeration biology filtering pool with adding the fly ash to the gas concrete particle. When the average concentration of the water inlet is 176mg/L, the average removal rate of the CODis 75.3 percent, the average concentration of water inlet is 42.7mg/L, the average removal rate of the NH3-N is 96.4 percent, the average concentration of the water outlet is 0.87mg/L which meets the GB18918-2002 grade A standard of the sewage discharging.

The invention relates to a hydrogen-doped inlet air and oxygen-enriched gasoline engine with EGR and a combustion control method. The device mainly comprises a gasoline engine, an EGR cooler, an EGR valve, a water electrolysis device, a hydrogen storage, an oxygen storage, a pressure control device, a hydrogen injection device and an oxygen injection device. According to the hydrogen-doped inlet air and oxygen-enriched gasoline engine, in-cylinder combustion modes of four air inlet modes including inlet air doped with hydrogen and oxygen, small-scale exhaust gas recirculation and hydrogen doping, large-scale exhaust gas recirculation and hydrogen doping and oxygen enrichment are respectively adopted in a cold start and idling condition, a medium or small load condition, a large load condition and a full load condition of the engine, so that the effects that the thermal efficiency is obviously improved and the HC and CO discharge is reduced at the cold start and idling stage of the gasoline engine can be achieved; the pumping loss of the engine is greatly reduced in the medium or small load condition, and the oil consumption and NOx discharge are greatly reduced; the engine power is obviously increased within short time when a throttle valve is fully opened. The hydrogen-doped inlet air and oxygen-enriched gasoline engine has excellent overall properties such as low emission, low oil consumption and instantaneous high power output.

A multilayer tube comprises at least the following three layers: an inner layer contactable with a fuel component, a barrier layer preventing the fuel component permeating, and an outermost layer. In the multilayer tube, the inner layer comprises a poly(butylene terephthalate) resin composition containing at least (A) a poly(butylene terephthalate) resin, the barrier layer comprises a polyester resin composition, and the outermost layer comprises a poly(butylene terephthalate) resin composition containing (A) a poly(butylene terephthalate) resin, (B) an elastomer component, (C) an aromatic polycarbodiimide compound, and (D) an antioxidant.

Methods and systems are provided for identifying and rejecting asymmetric faults that cause engine emissions to be biased rich or lean. In one example, a method for an engine system comprises generating a UEGO sensor feedback set-point adjustment based on slower and faster time components within an outer loop of a catalyst control system; generating an inner-loop bias-offset correction from the slower time component; and indicating degradation of the engine system based on a comparison of the bias-offset correction to a degradation threshold. In this way, the total outer-loop control authority is increased while maintaining drivability and noise, vibration, and harshness (NVH) constraints and meeting emission standards in the presence of an air-to-fuel ratio biasing fault.

Methods and systems are provided for operating an engine having a plurality of notch settings. One example method comprises, during a first notch setting, adjusting engine injection timing in a first proportion to an increasing temperature, and during a second notch setting higher than the first notch setting, adjusting engine injection timing in a second proportion to the increasing temperature, the second proportion lower than the first proportion.

The embodiment of the invention provides a hybrid power system and a coupling operation method thereof. The system comprises a fuel cell system, an internal combustion engine system, and a hybrid transmission, wherein the fuel cell system comprises a fuel cell stack, a storage battery, an inverter, a motor, a converter and a hydrogen tank, the internal combustion engine system comprises an internal combustion engine, a storage battery, a hydrogen tank, an oil tank and a clutch, the first input end of the hybrid transmission is connected with the motor, and the second input end of the hybrid transmission is connected with the torque output end of the internal combustion engine through the clutch. According to the hybrid power system and the coupling operation method thereof provided by theembodiment of the invention, when the hybrid power system works normally, the fuel cell system serves as a first power source, the internal combustion engine carries out power assistance according tothe working condition demand, and efficient and clean combustion of the internal combustion engine can be achieved by controlling the operation modes of the internal combustion engine under differentworking conditions. The fuel cell system can meet stricter emission and fuel consumption regulations, meanwhile the manufacturing cost of the fuel cell system is reduced by introducing the internal combustion engine system with low cost and reliable operation, and the hybrid power system has a good application prospect.

The invention relates to the manufacturing field of hard brittle materials, in particular to a diamond brazing tool which is in the combining structure of joint and staircase-like steps. The invention comprises a bit, a saw blade and a grinding wheel, and is mainly used for the drilling, cutting, grinding and polishing of stone materials, concrete, glass, ceramics, crystal, hard alloy and the like materials. The matrix structure of the working area of the diamond brazing bit, the saw blade and the grinding wheel is designed to a combining structure of joint and staircase-like steps, diamond abrasive is brazed on the step surface and in the joint, and the diamond abrasive is put into use step by step when in the process of drilling, cutting, grinding and polishing, thereby the contact surface with the processing object is reduced, the grinding force is small and the cutting efficiency is high.

The invention discloses a method for removing dust and oil from coal-chemical engineering wastewater. The method comprises following steps: (1), dust removing: wastewater enters a water channel through a dust removing water inlet valve and rotates for 360 degrees in the water channel to flow upwards, pressure difference is formed, the wastewater enters a center water distributor through a grid and a dust removing filter material under the action of the pressure difference and then flows out from a dust removing water outlet valve, suspended solids are intercepted by the dust removing filter material, and the dust removing of the wastewater is completed; (2), oil removing: the wastewater after dust removing enters a tank through an oil removing water inlet valve and moves downwards under the action of gravity, lipophilic groups of the filter material absorb dispersed oil drops in the wastewater when the wastewater passes an oil removing particle membrane, oil is enabled to be demulsified on the oil removing particle membrane, a thin film is formed, water after oil removing continuously flows downwards and is discharged from an oil removing water outlet valve, oil molecules are intercepted and accumulated to form oil drops, the enriched oil drops are separated in a large oil drop form and float upwards to the top end of the tank, and oil removing is completed. The invention further discloses a dust and oil removing system implementing the method.

The invention discloses a leakage block, which belongs to the technical field of automobiles. The leakage block structure comprises a fixing structure, a blocking pad and a suspended structure, wherein the leakage block is integrally fixed to a structure where a leakage hole is positioned by the fixing structure; and the blocking pad is arranged on the suspended structure and is vertically arranged by covering the leakage hole. When no liquid leaks from the leakage hole, the blocking pad has a sealing effect on the leakage hole; and when liquid flows out from the leakage hole, a gap is produced between the blocking pad and the outer edge of the leakage hole under the hydraulic action, so that the liquid is discharged from the gap. The leakage block guarantees the drainage function of the leakage hole and meanwhile can be used for sealing the leakage hole in case of no liquid discharge to solve the problem of air leakage of the leakage hole, so that the noise, vibration and harshness performance of the structure for mounting the leakage hole can be improved.

The invention discloses a stepless variable drive system for series dual-motor differential power dividing. The system comprises an engine output/differential input shaft, a first motor, a second motor, a motor controller, a power dividing device, a clutch, a gearbox, an engine power output shaft and a storage battery; the first motor and the second motor are connected in series, power of an engine is transmitted to the first motor through the engine output/differential input shaft for power generation, and meanwhile, the engine output/differential input shaft outputs power outwards through the power dividing device, the clutch and the gearbox to form a first power path; the first motor supplies power to the second motor and the storage battery through the motor controller, and the secondmotor outputs power outwards through the power dividing device, the clutch and the gearbox to form a second power path. The stepless variable drive system has the two power paths of mechanical power and electric power.

The invention discloses a recycling and regeneration method of an alkaline etching liquid. The recycling and regeneration method of the alkaline etching liquid includes the steps that S1, a regenerated etching liquid in a regenerated liquid tank is transported to an alkaline etching line (SES) for etching, and then a generated waste etching liquid is collected into an etching waste liquid tank; S2, the waste etching liquid is transported from the etching waste liquid tank to a copper extraction separator to separate and capture copper ions with a copper extractant; S3, after extraction is carried out, the waste etching liquid is separated from the extractant, and the waste etching liquid is collected into a regenerated liquid blending tank, the concentration of the waste etching liquid isblended and the blended waste etching liquid is re-transported to the regenerated liquid tank; and S4, the copper extractant is transported to a stripping separator, and the copper ions are subjectedto stripping and separated by a sulfuric acid solution to prepare the copper ions containing a copper solution to facilitate the treatment of the waste copper ions. By adopting the recycling and regeneration device and method of the alkaline etching liquid, the recycling and regeneration of the etching waste liquid is realized, the utilization rate can be above 98%, and thus the discharge of pollution waste from PCB enterprises is greatly reduced.

The invention discloses a parallel dual-motor differential power dividing continuously variable transmission system. The parallel dual-motor differential power dividing continuously variable transmission system is connected with an engine output shaft and comprises the engine output shaft, a first motor, a second motor, a motor controller, a differential mechanism, a clutch, a gearbox, a power output shaft and a storage battery; the first motor and the second motor are arranged in parallel, the engine output shaft transmits power of the engine to the first motor for generating electricity, meanwhile, the engine output shaft outputs power outwards to form a first power path through the differential mechanism, the clutch and the gearbox, the first motor supplies power to the second motor andthe storage battery through the motor controller, and the second motor outputs power outwards to form a second power path through the differential mechanism, the clutch and the gearbox. Accordingly,two power paths of mechanical power and electric power can be achieved.

The invention discloses a dry type pure suction sweeper truck which comprises a chassis and a dustbin body, the chassis is provided with side suction devices located on the two sides of the middle section of the chassis, a rear suction device located on the tail section of the chassis and a pneumatic conveying device located on the chassis. The pneumatic conveying device is positioned in an area between the vehicle head on the chassis and the dustbin; a multi-stage dry type dust removal device is arranged at the airflow input end of the pneumatic conveying device, and the pneumatic conveying device communicates with the inner cavity of the dustbin through the multi-stage dry type dust removal device so that vacuum negative pressure is formed in the inner cavity of the dustbin, and dust particles in the dustbin can are prevented from entering the atmosphere through the pneumatic conveying device; the side suction device and the rear suction and pickup device are independently arranged and communicate with the interior of the dustbin so as to suck and pick up garbage on the road surface through vacuum negative pressure in the dustbin. The road edge garbage can be effectively swept, operation flying dust can be effectively controlled, the content of solid particles in exhausted gas is small, and the environmental protection requirement can be met.

The invention discloses a process for generating power by coupling an intermediate storage type coal pulverizing system with sludge drying incineration. The process utilizes the intermediate storage type coal pulverizing system, the intermediate storage type coal pulverizing system comprises a furnace smoke suction pipe and a steel ball coal mill, the steel ball coal mill uses sludge conveyed by apumping system, the furnace smoke suction pipe is used for sucking hot smoke at the bottom of a boiler hearth and sending the hot smoke into the steel ball coal mill for pre-drying of the sludge. According to the process, with addition of the furnace smoke suction pipe, the hot smoke at the bottom of the hearth is sucked to enter the steel ball coal mill, so that the drying capacity of the coal pulverizing system is improved, sludge can be fully dried by the hot smoke, moisture-carrying exhaust gas finally enters the hearth through a tertiary air nozzle, staged combustion is achieved, and NOxemission is reduced; and the hot smoke sucked by the furnace smoke suction pipe can form inert atmosphere in the coal pulverizing system, therefore, the adaptability of the coal pulverizing system tovolatile components mixed with the sludge is improved, and the explosion-proof risk is reduced.

The invention discloses an engine with an EGR system, a control method and a vehicle, the engine comprises an engine body, wherein a plurality of air cylinders are arranged in the engine body, and the engine body is provided with an intake manifold and an exhaust manifold; an EGR assembly, wherein one end of the EGR assembly is communicated with the exhaust manifold; and a three-way valve and a catalyst, wherein an air inlet of the three-way valve communicates with the exhaust manifold, and a first air outlet and a second air outlet of the three-way valve communicate with the other end of the EGR assembly and the catalyst correspondingly so that waste gas in the exhaust manifold can selectively enter the catalyst or the EGR assembly. Therefore, the engine can be rapidly ignited, it is guaranteed that tail gas emission under the idling and starting working conditions meets the use requirements, the engine can operate in the low-temperature state, and after the temperature of the catalyst is high and the engine is switched to the medium-high-speed working condition, the EGR assembly is controlled to intervene in the working process of the engine, and the application range of the engine is widened.