The boiler manhole-lids are mounted from the inside of the boiler so that the boiler pressure will help to keep them tight. Hence the manholes have to be elliptical in shape to make it possible to take the lid out from the boiler.
In delivery, the boiler is packaged in separate unit as follows:
Boiler body assembly and burner assembly;
Economizer and condenser (according to the actual list);
3Platform ladders and railing;
Auxiliaries include (according to the actual list): FD fan and ID fan (motor and FD fan base included), electric control cabinet, air preheater, etc.
Chimney and flue gas duct;
Feed water device, instrument, valve and piping.
Technical documents include: quality certificate, boiler drawings, pre...
Horizontal steam boiler structure
The horizontal internal combustion boiler has a large-diameter shell, in which a furnace is arranged, and the burner is placed in the furnace to form an internal combustion chamber. Both ends of the furnace are respectively connected with the front and rear tube plates, and the smoke tube is arranged between the front and rear tube plates, so there is no need for bricklaying walls outside the boiler. The structure is mainly composed of boiler shell, furnace, f...
Raw water: refers to water that has not been disinfected and filtered, such as river water, stream water, well water, reservoir water, etc.
Feed water: refers to the chemical water delivered from deaerator to boiler by feed pump.
Make-up water: Make-up water for boiler is to make up the lost part or externally supplied part after completing a steam-water cycle, so that the boiler can always operate at a safe water level.
Recycling condensing water: When the heat energy of steam or hot water i...
(1) The boiler and all auxiliary equipment are installed, and all tests such as ball passing test, hydrostatic test and air tightness test are qualified.
(2) All rotating devices, feed water pumps, condensate pumps, salt solution pumps, blowers and induced draft fans for coal conveying, combustion and ash removal are qualified for trial operation.
(3) The fuel and water supply are guaranteed, the steam, water and flue gas piping system are normal, and the connection unrelated to the boiler to ...
The main water quality indexes of medium and high pressure steam boiler water are hardness, dissolved oxygen, iron, copper, sodium and silicon dioxide.
Low pressure and high temperature: the thermal oil heater can obtain higher working temperature at lower operating pressure, and the maximum temperature of liquid phase can reach 400°C.
When it is found that the boiler steam pressure can't rise, the first thing we should do is to check whether the water pump of the gas-fired steam boiler works and how much the pressure of the water pump of the gas-fired steam boiler can reach. When installing the water pump of the gas-fired steam boiler, a pressure gauge is installed on the water pump. This is because, if the gas-fired steam boiler does not add water, it can be detected whether it is caused by the water pump.
