Vehicle-mounted three-dimensional finned tube air preheater

Abstract

The invention discloses a vehicle-mounted three-dimensional finned tube air preheater. The air preheater comprises a coil furnace combustion pool provided with a combustion controller, wherein coils are arranged in the combustion pool, the axes of the coils coincide with flue gas flowing path in the combustion pool, the coils are composed of three-dimensional finned tubes, the water inlet ends ofthe coils are connected with a tank car high-pressure pump, and the outlet ends of the coils are connected with a paraffin removal pipeline; one air preheating pipe is coaxially arranged on a flue gasoutlet pipe of the combustion pool, an induced draft fan and an air outlet pipe are arranged on the two side walls of the air preheating pipe correspondingly, and the air outlet pipe communicates with an air inlet of the combustion controller; each of the upper portion and the lower portion of the air preheating pipe is internally and horizontally provided with one closed baffle, heat absorptionpipes composed of the three-dimensional finned tubes are evenly arranged between the upper closed baffle and the lower closed baffle at intervals, an air preheating chambers is formed among the air preheating pipe, the upper closed baffle and the lower closed baffle, and the air preheating chamber communicates with the induced draft fan and the air outlet pipe; and a flue gas channel formed by theheat absorption pipes. The vehicle-mounted three-dimensional finned tube air preheater can reduce the diesel consumption, improves the heat exchange efficiency, and protects the environment.

Description

technical field [0001] The invention relates to a vehicle-mounted three-dimensional finned tube air preheater, which belongs to oil field heat washing and wax removal equipment. Background technique [0002] At present, there are two ways of thermal cleaning for pumping wells in oilfields: 1. Chemical wax removal; 2. Thermal wax removal by hot oil truck. Ninety percent of the current oilfields use hot oil trucks to remove wax. Existing problems: 1. The heat generated by the combustion of diesel oil in hot oil vehicles heats the wax removal water in the coil, and injects the oil pipe from the casing pipe to return to dissolve the wax. The exhaust gas after diesel combustion is directly discharged from the heating furnace, emitting black smoke, causing great air pollution and failing to meet the current environmental protection emission standards; 2. Using diesel to heat the water in the coil at ambient temperature to the melting temperature, and the consumption of diesel is ...

AI Technical Summary

Problems solved by technology

Existing problems: 1. The heat generated by the combustion of diesel oil in hot oil vehicles heats the wax removal water in the coil, and injects the oil pipe from the casing and returns it to dissolve the wax

Generally, 600m³ wax cleaning water needs to be pickled once, which lasts 2 hours, high cost and low delivery time

Acid can easily cause environmental pollution and personal injury

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