Wellhead air heater

Abstract

The invention discloses a wellhead air heater. The wellhead air heater comprises a tank, an air heat exchanger, a first draught fan and a motor, wherein the tank is provided with an air inlet and an air outlet; the air heat exchanger is arranged in the tank, close to the air inlet and configured to perform heat exchange with air entering the tank via the air inlet; the first draught fan is arranged between the air heat exchanger and the air outlet and used for transmitting air subjected to heat exchange to the air outlet; the motor is connected with the first draught fan; the air heat exchanger comprises a throttling device, an air heat exchanger, a compressor and a second draught fan; and the throttling device, the air heat exchanger and the compressor are connected in series. Original boiler heating equipment is replaced with steam compression cycle, and pollution to the environment is avoided; and the air heat exchanger containing refrigerants is utilized, the heating effect is achieved through heat dissipation of condensation phase change of the refrigerants, the heat exchange efficiency is high, and the energy-saving effect is good.

Description

technical field [0001] The invention relates to a device installed at the wellhead of a coal mine to provide hot air for the shaft, in particular to a wellhead hot air blower capable of cooling down in summer. Background technique [0002] The wellhead heater is a kind of mine ventilation heating equipment, mainly to solve the freezing phenomenon that may occur at the wellhead due to the low temperature in winter, to ensure that the temperature of the wellhead ventilation is controlled above 2°C, to effectively prevent freezing and ensure safe production. [0003] The wellhead air heater is the core equipment for mine heating and ventilation. An air heating room is installed next to the wellhead, and a hot air fan is installed in the air heating room. The air outlet of the hot air blower is connected to the air duct to send the heated air to the wellhead to ensure the heating heat load of the wellhead. Requirement, and this well head hot air blower is finished by boiler in t...

AI Technical Summary

Problems solved by technology

[0003] The wellhead air heater is the core equipment for mine heating and ventilation. An air heating room is installed next to the wellhead, and a hot air fan is installed in the air heating room. The air outlet of the hot air blower is connected to the air duct to send the heated air to the wellhead to ensure the heating heat load of the wellhead. Requirements, while this kind of wellhead hot air blower in the prior art is completed by the boiler, due to the serious air pollution at present, the use of the boiler will only bring a heavier burden to the air

[0004] However, the existing wellhead air heaters can only meet the needs of heating air in winter, and cannot meet the cooling requirements of wellhead ventilation in summer, nor can they meet the humidity adjustment requirements of wellhead ventilation.

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