The fast boiler

The price of an 8 ton gas-fired steam boiler is used in a chemical plant

Time : 2021-11-08
Gas-fired steam boilers are used in many industries such as chemical plants, fertilizer plants, and feed plants. Not only can the output steam be used in production and processing, but also can be used as power energy to promote equipment. Take a chemical plant as an example. It basically requires a 4-8 ton steam boiler.

So how much does the chemical plant cost to purchase an 8-ton gas fired steam boiler? Zhengzhou Fangkuai Boiler Factory has recently come into contact with such a user in the chemical industry. After many phone calls and field visits to the user’s site, Zhengzhou Fangkuai Boiler Factory has customized an 8-ton gas-fired steam boiler for him. The market price of this type of boiler ranges from $6,000 to $200,000.

At the same time, Zhengzhou Fangkuai Boiler Factory also reminds you that it is necessary to do a hydraulic test of the gas steam boiler to ensure the safe and stable operation of the boiler in the later stage.
       1. The water pressure test should be carried out when the surrounding air temperature is higher than 5℃, and antifreeze measures must be taken when the temperature is lower than 5℃. The water used in the water pressure test should be kept at a temperature higher than the surrounding dew point to prevent condensation on the surface of the boiler. Inaccurate conditions such as water seepage will cause confusion and increase the difficulty of inspection; however, it should not be too high to prevent vaporization (making leakage difficult to find) and excessive temperature stress, generally 20°C to 70°C.
       2. After the water is full, when the pressure is gradually increased to 0.4MPa, a tightness inspection is performed, and the bolts of the flange, manhole door and hand hole cover can be tightened once if necessary.
       3. During the water pressure test, the water pressure should rise and fall slowly. When the water pressure rises to the working pressure, the pressure rise should be suspended to check for leaks or abnormal phenomena, and then the pressure should be raised to the test pressure and maintained for 20 minutes. If there is no drop, it is reduced to working pressure for inspection.
       4. Any leakage should be recorded so that it can be repaired when the pressure is reduced to atmospheric pressure.

When the water pressure test of a gas steam boiler meets the following conditions, it is considered qualified:
       1. There is no water droplets and water mist on the metal walls and welds of the pressure components;
       2. After the hydraulic test, there is no visible residual deformation;
       3. There is no water leakage in the pipe and interface of the economizer.
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