boiler quality steel prices 2012 2014

Inside the Fangkuai boiler quality steel prices 2012 2014 plant, there is a special corrugated furnace bladder production line, which can be processed according to the computer setting mode. At the same time, this is also a unique processing technology of Fangkuai Boiler. The cost of natural gas fuel alone exceeds 5 million yuan per year. The corrugated furnace liner fired by this production line can not only increase the heating surface of the boiler, but also alleviate the damage caused by the thermal expansion and contraction to the combustion chamber, and greatly extend the service life of the boiler.

Extend the life of the boiler quality steel prices 2012 2014 maintenance shutdown (boiler) 1. Within the boiler water off after the shutdown, open for all internal inspection hole hand hole corroded, remove the pot shell and silt debris collection box. 2. Clear fouling heated surface to enhance heat transfer, reduce heat resistance. 3. Check hearth furnace wall, the repair of damaged insulation, air leaks to eliminate smoke leakage. 4. Check each boiler drain valve switch is flexible, the sealing situation is good. The wet boiler maintenance: After pot scale, rust and other cleared, by injection into the boiler supply pump is full softening, oxygen qualified demineralized water, and adding an alkaline solution, the oxygen with the metal surface of the pot water inert to the reaction, the metal from corrosion. Before dosing, and closing the relevant check valve to prevent leakage into the operating system alkaline solution, while preventing leakage of water into the pan operation of the system, so alkaline concentration.

This paper introduces the classification of gas-fired steam boiler quality steel prices 2012 2014 and the precision of hydraulic press. 1. Industrial gas steam boiler: for industrial production and heating, etc. Most of them are low-parameter, small-capacity boilers, fire bed combustion and low thermal efficiency. 2, utility boilers: mainly used for power generation. Most of them are high-parameter, large-capacity boilers, fire chamber combustion and high efficiency. 3, marine boilers: used in ship power. This kind of boiler is generally low and medium parameters, fuel, small volume, light weight, easy to move. 4, locomotive boiler: the main use is locomotive power. The overall parameter is low, belongs to small capacity pot Furnace, fire bed combustion, require compact structure, movable. Gas-fired steam boilers are classified according to the types of working fluids and output states, and can be divided into: 1. Steam boilers: steam for export working fluids. 2. Hot water boilers: export working fluids for hot water. 3. Special working fluid boilers: outlet for special working fluids, Some organic matter, etc. Three gas-fired steam boilers can be divided into: 1. Ultra-high pressure boilers: outlet steam pressure is 14MPA (140kgf/cm) .2, high-pressure boiler: outlet steam pressure is 10MPA (100kgf/cm) .3, Secondary medium pressure boiler: outlet working fluid pressure is 2. 5MPa.4, medium pressure boiler: outlet steam pressure is 3.9MPa (39kgf/cm) .5, supercritical pressure boiler: outlet steam pressure is about 25MPa (about 250kgf/cm) .6, Subcritical pressure boiler: outlet steam pressure is 17MPa (170kgfxcm?) .7, low pressure boiler: outlet working fluid pressure (gauge pressure) is less than or equal to 1.3MPa (13kgf/cm). The precision of hydraulic press determines the precision of parts. However, it is not very accurate to use static precision only to measure the precision of press. That's because, uh, the pressure machine The size of the mechanical strength of the body has a great impact on the stamping accuracy. If the strength of the press itself is low, it will cause the deformation of the pressure machine tool ao at the moment of reaching the blanking pressure. In this way, even if the above conditions are adjusted very well in the static state, the deformation of the sample bed will be caused by the strength effect and there will be differences in the deformation of the sample bed. It can be seen that the precision of the press has a great relationship with the strength, and the size of the strength has a great impact on the stamping work, so in the blanking high-precision workpiece and the cold stamping production with strong continuity, the higher precision should be chosen. And rigid press.

Gas hot water boiler quality steel prices 2012 2014 use and maintenance of common sense What? Gas pump water boiler, burner, heat transfer equipment, automatic control of electrical and complex mechanical structures in one of the high-tech a hot water supply, heating, with heating, hot water conduit system correctly correct or not will greatly affect the connection, installation, commissioning, operation and maintenance and other safety performance and service life.