chain grate steam boiler parts

After the chain grate steam boiler parts to produce steam also need to pay attention to them? Steam boilers purpose is to generate steam to conduct heat, but when the steam produced by the boiler equipment should not be on the matter, or to pay more attention after the steam, because this time the steam boiler will start boost, while furnace the saturation temperature of the water also began to increase. Since the temperature of the water in the rising steam boilers, gas bubbles and metal evaporation heating surface wall temperature also began to rise at any time, need to pay attention to thermal expansion and the temperature of thermal stress, because the bubble wall thickness is thick, the main heating process in the boiler the problem is thermal stress. At the same time, but also consider the overall thermal expansion problems, especially for pipe heating surface of the steam boiler because the wall thickness, length of problems in the heating process is thermally integrated for expansion, but also pay attention to thermal stresses, to prevent neglect caused the failure. Generating steam in a steam boiler and boost heating process, the temperature difference between the bubble there is a temperature difference along the thickness of the vertical wall and, when the temperature is higher than the outer wall temperature of the inner wall, the upper wall surface temperature is above the lower case, in order to prevent excessive thermal stress, the boiler must be slow step. The steam boiler ignition during bootstrapping, the operating state of the steam parameters of the boiler, the water level and the respective members is constantly changing. Therefore, in order to effectively prevent the occurrence of abnormal conditions and other hazards, be sure to arrange professional staff to closely monitor a variety of changes in the meter indication. By adjusting the control pressure, some of the process parameters of temperature, the normal water level in the range of the allowable, but also the reliability of the assessment, a variety of security instruments, valves and other components, so as to ensure adequate safety and stable operation of the steam boiler . The higher pressure steam boiler, energy consumption will be higher and higher, the corresponding steam pressure equipment and piping, and the valve will also increase accepted, which also makes maintenance protection boiler steam demand is relatively increased, and steam generated in the heat generation and transport processes and also increase the proportion wandered. High pressure steam mouth of salt will increase with increasing pressure and that the heated area of ​​the waterwall tubes salt, smoke tubes and the like drum phenomenon generating structure, resulting in overheating foaming, clogging phenomenon, can cause severe pipeline explosion and other dangerous accidents.

ZG as 70 years horizontal chain grate steam boiler parts manufacturer will reply you as follows:

First we must know turbine's inlet pressure and temperature (depend on design ) , mass flow of steam to turbine (for 2,5 MW) and efficiency of turbine (for calculate of exhaust conditions ). Example : 100 MW double exhaust steam turbine need to 160 ton steam boiler at 500 C and 50 bar for high pressure and 40 ton steam boiler at 200 C and 5 bar for low pressure.

Boiler body as aluminum silicate blanket insulation materials, welding and pipeline are set ultrafine centrifugal glass cotton insulation materials, two-pronged approach to ensure good sealing performance of the boiler, the heat loss to a minimum.

Handan: Before the end of October to complete the transformation of more than 10 tons of steam gas boiler burning low nitrogen

A few days ago, Handan City issued "on the deadline to complete the nitrogen oxide gas boiler governance" (the "Notice"), clear objectives, tasks nitrogen oxides governance gas boiler, expected to be completed more than 10 steam tons of gas before the end of October this year, low NOx combustion boiler reconstruction. "Notice" to the objectives and tasks of nitrogen oxide gas boiler control, time requirements, safeguard measures have been clearly defined.

First, the implementation of the transformation of ultra-low emissions

By the end of June 2020, the existing non-electrical gas steam boiler, hot water boiler, Stoker stoker furnace and completed the transformation of a low nitrogen combustion, soot, sulfur dioxide and nitrogen oxides reach 5mg / m³, 10mg / m³ , 30mg / m³, the new gas combustion boiler synchronizing means and is mounted low nitrogen meet emission standards. 20 tons of steam / hour or more gas-fired boiler installation atmospheric pollution automatic monitoring facilities, and networking with the environmental protection department, install a distributed control system (DCS system). 20 t steam / hour to be mounted gas-fired boiler exhaust gas nitrogen oxide analyzer.

Second, the phased completion of the task of transformation of governance

10 before the end 2018, to complete the combustion of the transformation Boilers nitrogen over 10 tons of steam, to complete the 1-10 tons of steam (having a steam tons and 10 tons of steam) combustion transform low nitrogen gas boiler before the end of October 2019, 2020 at the end of 6 before completing the transformation of low-nitrogen combustion gas steam boiler 1 ton. Counties (cities, districts) according to the actual situation, to be completed in advance of nitrogen oxides governance gas boiler.

Third, both subsidies and penalties

"Notice" requirement for acceptance of project management, to give appropriate subsidies comprehensive financial subsidies to control air pollution. Due to the unfinished task of governance be ordered to stop production of governance. For excessive emissions, fraud, unauthorized outage environmental protection facilities, waste-water treatment snuck issues such as rectification and punishment according to law; wrongdoing, be held criminally relevant personnel.

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