1. Chain belt grate. The chain belt grate is a wide circular chain belt which is surrounded by and supported on the the front and rear axles via the chain wheels. At present, ZOZEN packaged chain grate steam boiler mainly adopts the large-block chain belt grate with a capacity of 1-20 tph.
2. Scale grate. The scale grate has many advantages. The obvious one is that there is less coal leakage. The scales can be replaced without shutting down the boiler. The ventilation is balanced, and the ventilation section is relatively small (6%). The chain grate bars only bears the stress or high temperature instead of both of them, which improves the working conditions of the chain grate.
3. Beam grate. Its main feature is that the width and length of the grate can be extended in a wide range, and the tonnage of the boiler can be larger. At present, the tonnage of the domestic beam chain grate steam boiler can reach 240 tph. The grate is featured with long service life, good durability, smooth arrangement and convenient replacement.
Chain Grate Boiler,Travelling Grate Boiler,Travelling Grate,Step Grate Boiler Jinan Yuanda Power Equipment Co.,Ltd. , https://www.ydboilerpart.com
The fuel used in modern automobiles is mainly gasoline and diesel. The working condition of the engine is in many cases directly related to the quality of the car's fuel and the work of the car's fuel system. Improper maintenance can cause serious damage to the car engine.
1. Diesel
Diesel oil, like gasoline, is mainly produced by petroleum processing. High-speed diesel engines generally use light diesel oil. In order to ensure the normal combustion of diesel, there are strict requirements on the quality of diesel: good combustion; good evaporation performance; suitable diesel viscosity; sulfur content is small; The octane number of diesel fuel represents an indicator of the ignition performance of diesel fuel in a combustion chamber. The higher the engine speed, the better the ignitability of diesel fuel and the higher the octane requirement. Diesel oil contains paraffin wax components. In diesel vehicles, it has the function of lubricating the precision parts on diesel vehicles and increasing the calorific value of diesel oil. It can prevent excessive wear of parts and components, thereby prolonging the service life of the parts. Paraffin is usually dissolved in diesel fuel, but when the ambient temperature decreases (usually above the freezing point), paraffin wax begins to crystallize. When the temperature is further reduced, crystals are formed and the filter is clogged, which seriously affects the normal oil supply, and finally causes the diesel to lose its fluidity. At high temperatures, paraffin waxes and other substances can also oxidize, forming gums in the injector needle valve and other parts, disrupting the normal operation of the oil supply system, and seriously affecting the driving performance and power performance of the vehicle.
To solve the problem of diesel fuel itself, traditional methods such as gasoline or alcohol are used to solve these problems, but at the same time it has caused many negative impacts on the engine oil supply system, such as: excessive wear of the spray nozzle and oil pump; for the fuel system Corrosion of parts, etc. Therefore, for the diesel engine, it is necessary to maintain good lubrication, reduce wear, but also to prevent the formation of colloidal and carbon deposition, only adding high-tech formula additives, improve the quality of diesel and regular thorough cleaning of the entire fuel system Maintenance can guarantee that the engine can be in the best working condition at any time. BG230 high-efficiency diesel engine combustion accelerator and BG248 diesel all-weather cleaning improver, containing special coagulation inhibitors, octane enhancers and cleaning acidic neutralizing substances and other components, to prevent diesel wax in the winter, so that the diesel is maintained at low temperatures Mobility; Improve fuel octane, reduce ignition, make engine work softer, reduce fuel consumption, but also can neutralize the acid produced in the combustion process, prevent engine parts corrosion, improve the accuracy of diesel pumps and injectors The lubrication capacity of the coupling prevents scratches and wear; it stabilizes the diesel in storage tanks and tanks, prevents oxidation and gelling, and keeps the engine in its optimum working condition in any environment (whether in summer or in winter). When BG230 is used in winter, the ratio of 1:1000 is blended into diesel, which can reduce the freezing point of No. 0 diesel to -15°C or less, which is particularly suitable for gas stations and field truck fleets.
2. Gasoline
Gasoline is a petroleum product containing refined petroleum distillates with appropriate additives. The quality and performance of gasoline are of great influence on the power, economy, reliability and service life of gasoline engines. The basic requirements for gasoline quality in general are: good evaporation, explosion resistance, stability (stability) and corrosion resistance. Gasoline contains various corrosive substances such as moisture, sulfides, organic acids and water-soluble acids. Alkali and other substances, if they do not pay attention to maintenance, will corrode components of the engine oil supply system. At the same time, gasoline is inevitably subjected to external pollution during storage and use, causing mechanical impurities and moisture in the air to enter the gasoline. These mechanical impurities will have It may block the carburetor orifices, fuel filters, fuel injectors, and other components. At the same time, these impurities will also exacerbate the wear of the carburetor orifices, piston rings, cylinder walls, injectors, etc., resulting in poor engine acceleration and difficulty in starting. , quiver and trembling, etc. The moisture in the gasoline may freeze in winter. In severe cases, it will clog the filter and the oil circuit, and even make the oil supply interrupted. In addition, the moisture will accelerate mechanical corrosion, dissolve the antioxidant, accelerate the gasoline gel, make the export agent, etc. Additive failure and other adverse effects. During the storage and transportation of gasoline, the oxidation reaction easily occurs to generate colloidal and acidic substances, which will increase the acid value of gasoline and reduce the quality of gasoline. When too much colloidal gas is generated in gasoline, it will block the oil circuit and valve. Adhesion is not tightly closed, causing excessive mixture of gas; at the same time the combustion chamber, valves, the top of the piston more carbon deposition, resulting in poor engine cooling, and then produce knock and pre-ignition, carbon deposition on the spark plug may also cause poor ignition, increase emissions Pollution.
In the past, many engine failures were to maintain the normal operation of the engine by repeatedly adjusting oil, circuits, etc. To be completely resolved, parts must be removed for cleaning or replacement; and parts may be damaged during disassembly, also during assembly. The level of assembly technology of the original car cannot be achieved, and the engine's power and economy cannot be completely restored. Today's automobiles have undergone tremendous changes and innovations in manufacturing technology. The oil and circuits of automobiles are directly controlled by computers and cannot be adjusted. The engine is very sensitive to the carbon deposits in the oil circuit and the interior. The traditional disassembly and cleaning can only clean the parts. The parts and components do not completely clean and maintain the entire fuel system.
Experts recommend that the fuel system should be regularly maintained from the start of the new vehicle, so that the fuel system, intake valves, combustion chambers and other components can be kept clean during the entire operation. The maintenance of the fuel system is the most critical system for the trouble-free operation of the vehicle. one. BG's fuel system curing products protect the internal carbon deposits (including fuel tanks, fuel supply lines, nozzles, valves, combustion chambers, etc.) of the fuel system (carburetor or electronically controlled fuel injection type) to protect various parts of the fuel system. Increasing the fuel storage stability and dispersing the moisture in the fuel has its own unique role.
Combining BG210 or BG211 (Fast and Efficient Cleaning System for Fuel System) with BG208 (Powerful Cleaning System for Fuel System) or BG203 (Carbon Cleaning and Maintenance Agent) can pre-soak hard deposits in valves, combustion chambers and piston crowns. It thoroughly cleans the carbon deposits of oil paths, carburetors, intake manifolds, and injectors. Elimination of engine vibration, knocking, power loss and other problems, long-term use can save about 10% of fuel, but also can protect the fuel system components rust and corrosion. BG202 has a special role in fuel storage stability. It can prevent the oxidation and gum formation of fuel during storage and use, maintain the cleanliness of the entire fuel system, make the oil path open, and improve engine performance. BG280 disperses the moisture in the fuel system and inhibits the condensation of water in the oil circuit. This ensures smooth starting of the engine at low temperatures and contains anti-oxidation and anti-corrosion components to prevent oil road corrosion and also has the function of cleaning. 
The chain grate is the combustion equipment of coal-fired steam boiler. There are three main types and structures: chain belt grate, scale grate and beam grate.