Agricultural machinery maintenance, energy conservation and emission reduction is the savings and efficiency, is the concern of the majority of operators. During the spring ploughing period, it is also the peak period for the maintenance and use of agricultural machinery. In order to save energy and reduce emissions, we should master these key technical points--

Standard oil transfer technology

Meaning: The fuel pump manufacturer adjusts the standard oil quantity of the fuel injection pump through the standard system and passes it to the base fuel injection pump maintenance enterprise step by step for the process of fuel injection pump debugging.

The main technical contents include: standard oil quantity transfer method and commissioning process, calibration method of fuel injection pump test bench, standard fuel injection pump and standard fuel injector calibration method, and fuel injection pump repair industry. Planning and design of standard oil delivery points (including standard value transfer method and floating value transfer method).

Effect: According to the test statistics, the fuel injection pump commissioned by the tested fuel injection pump test bench has an average fuel saving of 5%. At the same time, the calibrated fuel injection pump can ensure the working condition of the diesel engine is good, which helps to extend the service life of the diesel engine. Reduce noise and reduce exhaust emissions.

Diesel engine exhaust pollutant reduction technology

Meaning: The technology for purifying exhaust gas based on the in-house purification measures and fuel upgrading of diesel engine exhaust.

The main technical contents include: different characteristics of nitrogen oxides (NOx), carbon monoxide (CO), hydrocarbons (HC) and particulate matter (PM) in diesel exhaust, using particulate filtration and capture, oxidation catalytic conversion, NOx reduction and conversion. And other non-filtering techniques.

Effect: Experiments show that the addition of an oxidizing catalytic converter to the diesel engine can reduce the HC and CO content in the exhaust by 50% and the PM displacement by 50-70%. Among them, polycyclic aromatic hydrocarbons and nitro polycyclic aromatic hydrocarbons There is also a significant reduction; the addition of a particulate filter has a high filtration efficiency for carbon, which can reach 60% to 90%; the addition of a NOx catalytic converter for good catalytic conversion of NOx in diesel exhaust can reduce its emissions. 20%~30%.

Fuel injection pump and injector debugging technology

Meaning: Under the specified conditions, repair and debug the fuel injection pump and fuel injector according to the correct maintenance process and commissioning method to achieve the function of the function.

The main technical contents include: the determination of the fuel supply starting position of each cylinder of the fuel injection pump, the inspection and adjustment of the fuel supply quantity, the inspection of the sealing performance of the fuel injection pump assembly, the inspection and adjustment of the governor characteristics, and the inspection of the injection pump accessories. Adjustment, injector injection pressure check and adjustment, atomization quality and distribution status inspection, sealing inspection, and commissioning work environment, technical conditions and equipment configuration requirements.

Effect: According to the sampling test of the tractors in use, the fuel consumption rate of small tractors is higher than the calibration value by 13.4%, the average size of large and medium-sized tractors is 6~10%, and the discharge of particulate matter is 4~5 times higher than the national standard. Accurate commissioning of the fuel injection pump and injector of the high-pressure oil circuit of the tractor diesel engine according to the regulations can significantly reduce energy consumption, emissions, recovery or improve its working performance.

Water-based cleaning technology

Meaning: Water-based cleaning medium, water-based cleaning agent instead of organic solvent, combined with different cleaning methods, a new environmentally friendly cleaning technology to remove parts and dirt quickly and efficiently. Water-based cleaning agent is a mixture of a small amount of surfactants, detergent builders, corrosion inhibitors, solubilizers, defoamers and foam stabilizers in water. It can replace flammable petroleum solvents and remove metals. Dirt on the surface of the parts, such as grease stains and mildew spots.

The main technical contents include: selection and preparation of water-based cleaning agents, application of cleaning methods such as high-pressure cleaning and ultrasonic cleaning.

Effect: According to the test statistics, 1 kg of water-based cleaning agent can replace 20 kg of organic solvent, and the cost is only 10-20% of organic solvent. Water-based cleaning agent can not only dissolve and dissolve various water-soluble dirt. Moreover, water-insoluble soils such as synthetic resins and fats can be removed.

Diesel engine performance adjustment optimization technology

Meaning: The advanced technical equipment is used to test the technical condition of the diesel engine, and the technical parameters are optimized and adjusted to restore the good technical state of the diesel engine.

The main technical contents include: detection and optimization adjustment of injection pressure, injection advance angle, valve clearance, valve timing, cylinder pressure, speed, oil pressure and oil valve dwell time.

Effect: According to the test statistics, after the diesel engine has been tested and optimized, it can generally increase its power by 8~15%, reduce fuel consumption by 10~20%, reduce engine failure rate by 14.6%, reduce maintenance cost by 13.5%, and reduce maintenance time by 24.8%. , reducing maintenance downtime by 16.8%.

Tractor does not disassemble detection and debugging technology

Meaning: Using advanced equipment and equipment, the tractor's comprehensive technical conditions are not disassembled and quickly tested and technically assessed, and corresponding maintenance and commissioning measures are taken to keep the tractor in good working condition, thus achieving the technology of energy saving and emission reduction.

The main technical contents include: comprehensive testing of power, fuel consumption and emissions of tractors, as well as special inspection and maintenance of transmission systems, hydraulic systems, braking systems, etc.

Effect: According to the test statistics, 8055 tractors were not disassembled, and 4,430 tractors with poor technical status were debugged. After commissioning, the technical status of the tractor has been significantly improved. The average power before commissioning is 7.35 kW, the average fuel consumption rate is 340 g/kWh, the average power after commissioning is 8.16 kW, the average fuel consumption rate is 299.2 g/kWh, and the total power is restored. Kilowatts, Taiwan's average fuel economy 120 kg / year.

Lubricating oil timely replacement technology

Meaning: Regularly test and analyze the quality of agricultural machinery lubricants, and change oil according to oil change standards to ensure good lubrication of agricultural machinery. At the same time, monitor the changes in the state of agricultural machinery technology and determine the maintenance strategy of agricultural machinery.

The main technical contents include: the physical and chemical properties of lubricating oil (viscosity, acid value, moisture, impurities, water-soluble acid and alkali) detection technology, the oil change standard and oil change cycle determination, the analysis of the working state of the lubrication system .

Effect: The replacement of agricultural machinery lubricants usually uses a fixed oil change interval. The use of regular testing and timely replacement technology can avoid replacing the quality of the oil at a fixed cycle, reducing the oil change, saving resources and reducing waste oil pollution. It can also be found that the quality of the lubricant has deteriorated before the replacement time. The problem is to avoid poor lubrication conditions, increased wear and serious mechanical failure.

Adhesive repair plugging technology

Meaning: In the process of maintenance and repair of agricultural machinery, the use of adhesives, the use of adhesive technology instead of the traditional riveting, welding and threading process, the repair of sealing connection failure and parts damage defects.

The main technical contents include: joint sealing, sealing and leakage of thread and pipe joints and fittings, leakage of metal and non-metal parts, and dimensional recovery of surface wear of fittings.

Effect: It adopts adhesive sealing and plugging technology. It is easy to operate, low in cost and does not require complicated equipment. It is an effective way to prevent oil leakage, water leakage and air leakage. It is especially suitable for cracking of parts such as the body and sand holes of castings. Repair of the stomata. In addition, it can also be used for the repair and size restoration of damaged parts of agricultural machinery with harsh working conditions and high strength requirements.