When choosing the 80-ton gas-fired steam boiler, the price determines the customer's upfront investment cost, so it is as important as the quality. However, the price is not determined by a single factor, it is related to many aspects, the price of 80-ton gas-fired steam boiler will be different with different choices. Let’s talk about what are the main factors that affect the 80-ton gas-fired steam boiler?
(1) The furnace drying time depends on the shape, structure and humidity of the furnace. It takes 4 ~ 7 days for small low-pressure boilers and 10 ~ 15 days for heavy furnace walls.
(2) First, bake with wood, on the ash hopper of the room furnace and the grate of the chain furnace, use small fire for natural ventilation within 2 ~ 3 hours. When the temperature of combustion chamber rises, the ventilation capacity will be improved, and the flue damper can be turned down a little. It is best to k...
(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 ...
Liquid fuels mainly include petroleum, gas oil, kerosene, heavy oil, coal tar, gasoline, alcohol and so on. The liquid fuel is mainly composed of seven components: carbon (C), hydrogen (H), oxygen (O), nitrogen (N), sulfur (S), ash (A) and moisture (M). It is characterized by high content of carbon and hydrogen and low moisture, so its calorific value is very high, usually 40600〜43100kJ/kg.
The first technical problem is the reconstruction of boiler body:
The coal-fired boiler is mainly grate firing boiler. For small water-tube hot-water boilers, it may lead to the water temperature at the outlet of the riser exceeding the limit or overheating boiling or even vaporization. For shell-and-tube boilers, the rising flue gas temperature at the furnace outlet will make the working conditions of the tube plate worse, thus causing cracks and leakage of the tube plate.
The higher heating value of natural gas refers to the total heat released when a specified amount of natural gas is completely burned, including the latent heat of vaporization released by the condensation of water vapor in flue gas into water.
The lower heating value of natural gas refers to the heat released when a specified amount of gas is completely burned, the temperature of combustion products is the same as the initial temperature of natural gas, and the generated steam remains ...
There are many valves commonly used in atmospheric gas-fired boilers, including gate valves and stop valves of main steam valves, water supply valves, check valves, exhaust valves, etc.
When the water pump is turned on, the pressure signal is transmitted to the on-off valve of the atmospheric gas-fired boiler through the pressure pipe, the valve is opened, and the water circulation is carried out. When the water pump stops, the pressure drops, and the on-off valve is closed slowly to av...
ATMOSPHERIC BOILER - a boiler in which combustion air/flue gases are drawn through the boiler without a fan. Modulating atmospheric boilers are designed to control the output (size of flame) to match the boilers variable load requirements. During this process the burner is designed to stay at the correct fuel / air ratios across the complete firing range ensuring maximum combustion and boiler efficiencies. Modulation refers to a boiler's ability to match firing rate - input - to meet the heating demand - output - of the system. (https://tlj-eng.com/news/heating-boilers-what-you-need-to-know.html)
