20 tph SZL biomass-fired water tube boiler project for oil refining industry 20 tph SZL biomass-fired water tube boiler project for oil refining industry

Steam boilers are used for refining, bleaching, deacidification, deodorization, fractionation and other processes in the palm oil production. PT.Mikie...

7MW WNS gas-fired hot water boiler project for Yinlang ranch 7MW WNS gas-fired hot water boiler project for Yinlang ranch

Hot water boilers are used to provide thermal energy for agricultural greenhouse, flowers shed, poultry house and other places. Founded in 1947, Yinla...

1.5MW gas-fired thermal fluid heater for paper industry 1.5MW gas-fired thermal fluid heater for paper industry

Thermal fluid heaters are mainly used to provide heat energy for pulping, hot-melt, drying, sizing and other processes in the paper industry. Founded ...

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1. The air in the economizer and condenser has not drained yet when firing. The safety valves of economizer and condenser need to be turned on to exhaust steam. Return pipe valves also need to be turned on, enabling the steam in the economizer and condenser to return to softened water tank.

2. The outlet water temperature is so high that economizer and condenser will have vaporization phenomenon. The outlet water temperature of economizer and condenser need to be controlled.

3. The check valve of the inlet of economizer and condenser is not at normal conditions. The check valve needs to be repaired.
1. The bed temperature rises sharply.

2. Oxygen levels go down and sometimes drop to zero.

3. The electric current of primary air fan is less and wind pressure of air compartment is higher.

4. Negative pressure of furnace is increased while the electric current of induced draft fan is reduced.

5. The slag discharge is difficult or unsuccessful.

6. When appearing bed clinkering, the bed temperature and bed pressure will be uneven distributed and not at normal condition; the measuring point of part bed temperature rises or falls abnormally.

7. The indicator of bed pressure has a very small fluctuation.
1. The fire grate is damaged and needs to be replaced.

2. There are excessive gaps of fire grate, which need to be adjusted.

3. The proportion of coal powder is too high. The coal need to be screened.
The life of the heat medium oil for thermal fluid heater is related to the operating temperature, and the life is shorter when the operating temperature is high.

After half a year, the heat medium oil is used for sampling every 2-3 months. When the flash point of the heat medium oil changes by more than 20%, the acid value is less than 0.5 mgKOH/g, and the residual carbon is less than 1.5 wo/o, when the color of oil becomes dark, it indicates that it has failed and needed to be replaced.

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