Liquid piston hot air engine

Abstract

The invention discloses a liquid piston hot air engine. The liquid piston hot air engine comprises a first air cylinder, a second air cylinder, a heater, a heat regenerator, a cooler and a power output pipe, wherein liquid pistons communicated with the bottoms are arranged inside the first air cylinder and the second air cylinder; the heater, the heat regenerator and the cooler are sequentially connected; the first air cylinder is connected with the heater; the second air cylinder is connected with the cooler; the cooler comprises an air-cooling pipeline exposed in air, a water-cooling pipeline connected with the air-cooling pipeline and a water jacket covering the water-cooling pipeline. The liquid piston hot air engine provided by the invention has the advantages of good cooling effect and stable working property.

Description

technical field [0001] The present invention relates to a heat engine, in particular to a liquid piston heat engine. Background technique [0002] A heat engine is a closed-cycle reciprocating piston heat engine with external combustion. It was invented by Stirling in Scotland in 1816, so it is also called a Stirling engine, also known as a heat engine or an external combustion engine. Since the hot air engine avoids the problem of detonation work of the traditional internal combustion engine, low noise, low pollution and low operating cost are realized. The power and efficiency of the hot air machine are not affected by altitude, which is very suitable for use in high altitude areas. [0003] The hot chamber, heater, regenerator, cooler and cold chamber of the hot air machine are connected in sequence to form a gas channel, and the heater is heated by an external heat source so that the gas in the gas channel flows between the cold chamber and the hot chamber. The recipro...

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Problems solved by technology

At the initial stage of boiler operation, the cooling effect of the cooler 11 is better due to the low return water temperature of the boiler; after the boiler has been in operation for a period of time, as the return water temperature rises, it will be much higher than room temperature, which will reduce the cooling effect of the cooler 11. Cooling effect, which in turn affects the stability and power of the heat engine

[0008] In order to overcome this problem, the approach that can be taken is to supplement the cooling water in the cooler 11 from outside the water circulation system of the boiler, which can improve the cooling effect of the cooler 11, but it will increase the expenditure of water charges, which is very precious in water resources. At the moment, such a treatment seems to outweigh the gain

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