Efficient water jacket heating furnace

Abstract

The invention discloses an efficient water jacket heating furnace. The efficient water jacket heating furnace comprises a water jacket, a chimney, a heat exchanger, a medium coil pipe and a smoke pipe; a circulating liquid coil pipe is arranged in the chimney; a gas coil pipe is arranged in the heat exchanger; the medium coil pipe and the smoke pipe are arranged in the water jacket; a honeycomb pipe communicated with the chimney is arranged in the water jacket; the honeycomb pipe is connected with a fire cylinder through the smoke pipe; the fire cylinder is connected with a combustor; a liquid flowing cavity is formed in an inner cavity of the heat exchanger; the circulating liquid coil pipe is connected with the heat exchanger and enables liquid media in the circulating liquid coil pipe and the heat exchanger to flow and replace; the gas coil pipe is connected with a gas pipe of the combustor; an airflow channel is formed in a cavity of the chimney; and the chimney is connected with an air pipe of the combustor. The efficient water jacket heating furnace has the advantages that gas and air are mixed and burnt more thoroughly, and the utilization efficiency of the gas is improved; and air and fuel gas entering the combustor are preheated through flue gas waste heat, the flue gas waste heat recycling efficiency is effectively improved, and the heat efficiency of the water jacket heating furnace is improved.

Description

technical field [0001] The invention relates to an oilfield auxiliary heating equipment, in particular to a high-efficiency water jacket heating furnace. Background technique [0002] Jacket water heater is a commonly used equipment for indirect heating in oil fields. It is widely used in oil and gas gathering and transportation systems. It is mainly used for heating and reducing viscosity of oil and gas products. The gas transfers heat to the medium in the water jacket furnace, and the temperature of the flue gas gradually decreases, and finally it is discharged from the chimney. However, the thermal efficiency of the water jacket furnace currently in service in the oil field is low, and the exhaust gas temperature of the flue gas is relatively high. The flue gas is discharged through the chimney. The heat carried by the high-temperature flue gas is not effectively utilized, and is directly released into the surrounding environment, causing unnecessary heat loss, increasing...

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Problems solved by technology

[0002] Jacket water heater is a commonly used equipment for indirect heating in oil fields. It is widely used in oil and gas gathering and transportation systems. It is mainly used for heating and reducing viscosity of oil and gas products. The gas transfers heat to the medium in the water jacket furnace, and the temperature of the flue gas gradually decreases, and finally it is discharged from the chimney. However, the thermal efficiency of the water jacket furnace currently in service in the oil field is low, and the exhaust gas temperature of the flue gas is relatively high. The flue gas is discharged through the chimney. The heat carried by the high-temperature flue gas is not effectively utilized, and is directly released into the surrounding environment, causing unnecessary heat loss, increasing redundant fuel consumption, reducing the thermal efficiency of the heating furnace, and affecting the temperature field of the surrounding environment. According to statistics, the heat loss from exhaust smoke accounts for more than 10% of the total heat released by fuel combustion. Chimney exhaust smoke is a waste heat resource with great potential. Fully recycling and utilizing waste heat resources is of great significance for improving the thermal efficiency of water jacket heating furnaces. At present, petrochemical In the field, there are few equipment and facilities for the heat recovery of the chimney of the water jacket heating furnace. Even if the chimney heat recovery device is used in some places, it is generally only a fuss about the pipeline, and its structural design is seriously unreasonable. The problem is that the heat is not effectively used

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