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In the SO3 gas preparation unit, sulfur combustion in the sulfur-burning furnace will produce a high temperature of 700 ° C, and the inlet temperature of the conversion tower cannot be higher than 450 ° C, so that we will use the SO2 heat exchanger to use the temperature of the sulfur-fired furnace outlet with a cooling fan.
The cooling air is exchanged to carry the heat away, and the temperature is lowered to 420 ° C and sent to the conversion tower. Therefore, the temperature of the exhaust gas discharged from the SO2 heat exchanger can be as high as 300 ° C. The discharge of such high temperature exhaust gas into the atmosphere will be a great energy loss. By heat exchange of the exhaust gas through the residual heat, 0.4-0.6 can be produced. MPa saturated steam, the amount of steam can reach 200-1000KG / h (depending on different production capacity), steam generated by waste hot exhaust gas can be used for sulfur melting of sulfonation equipment. Therefore, after the waste heat recovery equipment is added, but after the production enters the normal state, the sulfonation unit will no longer need the supply of external saturated steam, and there will be excess saturated steam output. The economic benefits will be outstanding.
After the steam is produced, the separator is hydrated by the liquid level control soft water pump of the vapor-liquid separator to maintain its liquid level. The soft water in the vapor-liquid separator flows into the side of the inner tube of the heat exchanger by the circulation pump, and exchanges heat with the high-temperature air blown inside the heat exchanger, so that the water is instantaneously vaporized, and the vapor entrained by the vaporized steam is exchanged. The other side of the internal tube of the heat exchanger enters the vapor-liquid separator, in which the vapor-liquid separation is performed, and the upper output steam of the vapor-liquid separator is connected with the steam distribution tank of the workshop to conveniently control the steam. After the heat exchange, the hot air is directly vented.
In the SO3 gas preparation unit, sulfur combustion in the sulfur-burning furnace will produce a high temperature of 700 ° C, and the inlet temperature of the conversion tower cannot be higher than 450 ° C, so that we will use the SO2 heat exchanger to use the temperature of the sulfur-fired furnace outlet with a cooling fan.
The cooling air is exchanged to carry the heat away, and the temperature is lowered to 420 ° C and sent to the conversion tower. Therefore, the temperature of the exhaust gas discharged from the SO2 heat exchanger can be as high as 300 ° C. The discharge of such high temperature exhaust gas into the atmosphere will be a great energy loss. By heat exchange of the exhaust gas through the residual heat, 0.4-0.6 can be produced. MPa saturated steam, the amount of steam can reach 200-1000KG / h (depending on different production capacity), steam generated by waste hot exhaust gas can be used for sulfur melting of sulfonation equipment. Therefore, after the waste heat recovery equipment is added, but after the production enters the normal state, the sulfonation unit will no longer need the supply of external saturated steam, and there will be excess saturated steam output. The economic benefits will be outstanding.
After the steam is produced, the separator is hydrated by the liquid level control soft water pump of the vapor-liquid separator to maintain its liquid level. The soft water in the vapor-liquid separator flows into the side of the inner tube of the heat exchanger by the circulation pump, and exchanges heat with the high-temperature air blown inside the heat exchanger, so that the water is instantaneously vaporized, and the vapor entrained by the vaporized steam is exchanged. The other side of the internal tube of the heat exchanger enters the vapor-liquid separator, in which the vapor-liquid separation is performed, and the upper output steam of the vapor-liquid separator is connected with the steam distribution tank of the workshop to conveniently control the steam. After the heat exchange, the hot air is directly vented.
