Steam turbine heater

Abstract

The invention provides a turbine heater which comprises an air inlet passage, a steam inlet pipe and a hot air outlet passage. Air and steam enter a mixing chamber through corresponding pipelines to be mixed; the mixing chamber is positioned in a host housing; the air inlet passage is connected with the host housing in a sealing manner; steam spray nozzles are arranged at the end part of the steam inlet pipe, which is positioned in the host housing; the steam spray nozzles are uniformly distributed into a strip arc shape along the periphery of the steam inlet pipe; centrifuge blades are uniformly distributed on the peripheries of the steam spray nozzles; the tangential direction of each arc steam spray nozzle outlet passage is opposite to that of each arc centrifuge blade; a centrifugal impeller consisting of the centrifuge blades is connected with a rotating shaft by a fixing part; the maximum included angle alpha between the tangential direction of an outlet of each steam spray nozzle outlet passage and a string of each arc centrifuge blade is 90 degrees; and a demister is arranged in the host housing or in the hot air outlet passage. The turbine heater adopts steam as a heating source and a fan power source, enables the air to be directly heated, and does not require a heat exchanger and an electric motor so as to overcome the defects in the prior art.

Description

technical field [0001] The invention relates to antifreeze equipment for mine wellheads, which is a steam turbine heater. Background technique [0002] At present, the equipment used in mine wellhead antifreeze is mainly heating equipment such as steam-type industrial hot air heaters, steam-type air heaters or hot air stoves. It is blown out and sent to the wellhead for antifreeze at the wellhead. The shortcomings are: 1. Due to the indirect heating method of air and heat medium, the equipment consumes a lot of metal pipes to manufacture the heat exchanger, which is costly, and the maintenance rate of the heat exchanger is high and the service life is limited; 2. The power of the motor is large and the cost is high. High energy consumption and safety hazards, and the hot air ejected from the equipment is dry hot air, which is easy to blow up environmental dust, and the dust is larger; 3. The angle of the air inlet and outlet is also difficult to adjust according to needs. ...

AI Technical Summary

Problems solved by technology

Its shortcomings are: 1. Due to the indirect heating method of air and heat medium, the equipment consumes a large amount of metal pipes to manufacture heat exchangers, which is expensive, and the maintenance rate of heat exchangers is high, and the service life is limited; 2. The power of the motor is large, and the cost High, energy consumption is high and there are safety hazards at the same time, and the hot air emitted by the equipment is dry and hot air, which is easy to blow up environmental dust, and the dust is large; 3. The angle of the air inlet and outlet is also difficult to adjust according to needs, etc.

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