Recently, Hunan Jiangbin Group built a gasoline engine piston production line with advanced domestic standards. The completion of this line has enabled Jiangbin Group to enter Changan Automobile's supporting system and realize strategic cooperation with BAIC Holdings, Yunnei Power, Dongan Power, and so on. Entering the middle and high-end gasoline engine piston market, a new basic platform has been built.
It is understood that Jiangbin Group has long been committed to the research and development and manufacture of middle-to-high-end diesel engine pistons. The development of pistons for gasoline engines is conducted under the conditions of existing key resources. It has always been in a state of low efficiency, high cost, and unstable quality. Far from adapting to the needs of the market and users. To this end, the company is actively exploring new ways to develop medium-to-high-end gasoline engine pistons in batches, proposing development ideas for “stronger bodies (middle and high-grade diesel engine pistons) and expansion of two wings (medium and high-grade gasoline engine pistons)â€. In particular, since 2010, Jiangbin will enter the mid- to high-end gasoline engine piston market, speeding up the adjustment of products and market structure as one of the “seven adjustments†of the company.
This year, Jiangbin Group, in conjunction with the ongoing production capacity of Phase II and Phase III technology transformation projects, officially established the first high-end gasoline engine piston production line that reached the domestic advanced level in early September. The current production line is under intense debugging. By then, it will form a monthly production capacity of 40,000 and an annual production capacity of 400,000 to 500,000 gasoline engine pistons.
The production line is mainly used for the production of the company's own design, with independent intellectual property rights of Beijing Automotive's piston engine new products. The completion of this line will be the next step into Changan Automobile's supporting system, and will realize strategic cooperation with BAIC, Yunnei, Dongan, etc., and then fully enter the medium-to-high end gasoline engine piston market and build a new basic platform.
It is reported that Jiangbin Group has specialized in producing engine pistons and other components for nearly 40 years. It is the professional manufacturing company with the earliest introduction, the most complete technology, and the best digestion and absorption technology in the domestic piston industry. One with wear-resistant insert ring, the first internal cold oil gallery, the first graphite spray, the first shaped pin hole, the first drum-shaped ellipse, the first combination, the first pendulum, the first An electron beam welds the piston. The company has assets of 410 million yuan, more than 1,000 sets of modern high-precision numerical control equipment, annual output of medium and high-grade engine pistons 3.8 million, the company and Guangxi Yuchai, Shandong Weichai, Hangfa, Chongqing Cummins, Nanjing Iveco and other domestic more than 20 companies Well-known companies have established stable support and important partnerships.
Electrostatic Precipitator
The principle of electrostatic precipitator is to use high voltage electric field to ionize the smoke. The dust charge in the airflow is separated from the airflow under the action of electric field. The negative electrode is made of metal wires with different cross-section shapes, called discharge electrodes.
Positive electrodes are made of metal plates of different shapes, called dust collecting electrodes. The performance of electrostatic precipitator is affected by three factors, such as dust property, equipment structure and flue gas velocity. The specific resistance of dust is an index to evaluate the conductivity. It has a direct effect on the efficiency of dust removal. When the resistance is too low, the dust particles are hard to keep on the dust collecting electrode, causing them to return to the airstream. When the specific resistance is too high, the charge of dust particles reaching the Dust Collector is not easy to release. The voltage gradient between the dust layers will cause partial breakdown and discharge. These conditions will result in a decrease in the efficiency of the dust removal.
Working principle
The basic principle of electrostatic precipitator is to collect dust in flue gas by electricity. It mainly includes four interrelated physical processes: (1) ionization of gases. (2) the charge of dust. (3) the charged dust moves toward the electrode. (4) the capture of charged dust.
The capture process of charged dust: on the two different metal anodes and cathodes with different radius of curvature, a high voltage direct current is used to maintain an electric field enough to ionize the gas. The electrons produced by the ionization of the gas, the anion and the cation, are adsorbed on the dust through the electric field, so that the dust can be charged. Under the action of the electric field force, the electrodes with different electrode properties move to the electrodes of different polarity and deposited on the electrode, so as to achieve the purpose of separation of dust and gas.
Characteristic
Compared with other dedusting equipment, electrostatic precipitator has less energy consumption and high dust removal efficiency. It is suitable for removing dust from 0.01 to 50 m in flue gas, and can be used in high temperature and pressure occasions. Practice shows that the larger the flue gas volume is, the more economical the investment and operation cost of electrostatic precipitator will be.
Technology of horizontal electrostatic precipitator with wide spacing
The HHD type wide spacing horizontal electrostatic precipitator is an introduction and reference of foreign advanced technology, combined with the characteristics of industrial furnace exhaust gas conditions in various industries in China, in order to adapt to the increasingly stringent emission requirements and the research and development of the WTO market standards. The results have been widely used in metallurgy, power, cement and other industries.
Optimum wide spacing and special plate configuration
The electric field intensity and the plate current distribution are more uniform, the drive speed can be increased by 1.3 times, and the trap dust is expanded to 101-1014 -cm in the range of resistance. It is especially suitable for the high resistance dust recovery of the waste gas of the vulcanized bed boiler, the new cement dry rotary kiln and the sintering machine and so on, and reduce or eliminate the reverse corona phenomenon.
A new RS corona line
The maximum length of up to 15 meters, with low halo voltage, corona current density, strong steel, never breakage, with high temperature resistance, resistance to heat change, combined with the top mode of blast cleaning effect is excellent. According to the concentration of dust, the corona wire density can be configured to meet the high dust concentration. The maximum allowable inlet concentration can reach 1000g/Nm 3.
Corona pole top vibrator
According to the theory of dust removal, the top electrode can be vibrated with strong vibration. Two optional ways of mechanical and electromagnetic can be adopted.
The free suspension of both yin and Yang
The dust collector and corona system of HHD electric dust collector use a three-dimensional suspension structure. When the exhaust gas temperature is too high, the dust collector and corona pole will expand freely in the three-dimensional direction. The collector system also specially designs the restraint structure of the heat resistant steel belt, which makes the HHD electric dust collector have a higher resistance to heat change and the commercial operation table. It is clear that the maximum temperature resistance of HHD electric dust collector is up to 390 degrees C.
Increase the acceleration of vibrator
The effect of dust cleaning is improved: the dust collector system has a direct effect on the efficiency of dust collecting. Most of the electric collector shows a decline in efficiency after a period of time. The main reason is the poor effect of the dust collecting plate. The HHD electric dust collector uses the latest impact theory and Practice results to change the traditional flat steel impact rod knot. It is constructed as a whole steel structure, and the structure of the side vibrator of the dust collector is simplified to reduce the drop weight by 2/3. The experiment shows that the minimum acceleration of the surface of the dust collector is increased from 220G to 356G.
Small area and light weight
As the discharge electrode system is designed by the top vibrator, and the unsymmetrical suspension design is used creatively for each electric field, and the design of the shell computer software is optimized by the American environmental equipment company, the total length of the electric dust collector is reduced by 3-5 meters and the weight is reduced by 15%.
High guarantee insulation system
In order to prevent the high voltage insulation material of the electrostatic precipitator from dewing and climbing, the shell is designed by the double inflatable roof of the heat storage. The electric heating adopts the latest PTC and PTS materials, and the bottom of the insulation casing is designed by the hyperbolic back blowing design, which completely eliminates the easy failure of the porcelain casing dew and creeping, and the maintenance and replacement are very convenient.
Matching L-C high system
High voltage control can be controlled by DSC system, upper computer operation, low voltage control using PLC control, and Chinese touch screen operation. The high voltage power supply uses constant current and high impedance DC power to match the HHD electrostatic precipitator body. It has the advantages of high dust removal efficiency, high specific resistance and high concentration.
High Pressure Electrostatic Precipitator
High Pressure Electrostatic Precipitator,High Voltage Electrostatic Precipitator,CDG High Voltage Electrostatic Precipitator
Botou Youjian Environmental Protection Equipment Co. LTD. , http://www.btdustmachine.com