A liquid heat engine and power output device

Abstract

The invention discloses a liquid heating machine and relates to the technical field of a power machine , and the liquid heating machine comprises an expansion box and a hydraulic cylinder, wherein a thermal expansion liquid working medium is arranged in the expansion box, the hydraulic cavity of the hydraulic cylinder is connected with the expansion box and provided with a working medium heating device and a working medium cooling device. The liquid heating machine is simple in structure, high in direct output torque and efficiency and low in heating medium demand and temperature difference, the heating machine can be normally operated in the temperature difference of 30-50 degrees centigrade, and wide in application range and low in noise, the piston of the hydraulic cylinder has low reciprocating working frequency and fully utilizes enormous pressure occurred due to thermal expansion of the liquid. The liquid heating machine is used to recycle heat energy and converse it into mechanical energy in a vehicle heat removal system, and the mechanical energy can be further conversed into electric energy for storage and utilization.

Description

technical field [0001] The invention relates to the technical field of power machinery, and in detail relates to a liquid heat engine and a power output device with simple structure, large direct output torque, high efficiency and low noise. Background technique [0002] We know that traditional steam engines and steam turbines are large in size and noisy, and their use is limited. For example, the power plant of a nuclear submarine is generally a steam engine. When submerged in the sea, the noise is not conducive to concealment, and it is not suitable to use loud noise machinery in daily life. Although the existing Stirling engine solves the noise problem, it uses gas as a working medium. Because the gas has poor thermal conductivity and is easy to be compressed, although the Stirling engine rotates fast, the direct output torque is small, and it cannot directly drive heavy vehicles. Load, and requires a large temperature difference (above 500-700 ℃) to work normally, high...

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Problems solved by technology

[0002] We know that traditional steam engines and steam turbines are large in size and noisy, and their use is limited

For example, the power plant of a nuclear submarine is generally a steam engine. When submerged in the sea, the noise is not conducive to concealment, and it is not suitable to use loud noise machinery in daily life.

Although the existing Stirling engine solves the noise problem, it uses gas as a working medium. Because the gas has poor thermal conductivity and is easy to be compressed, the Stirling engine has a fast speed but the direct output torque is small, and it cannot directly drive heavy vehicles. Load, and requires a large temperature difference (above 500-700 ℃) to work normally, high heat medium requirements, narrow application range, low efficiency

The external components of the Stirling engine need multiple, rapid and repeated cycles of work in order to output high power externally; the piston, casing and transmission components of the engine are damaged quickly and have a short service life

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