The invention discloses a subcritical, supercritical pressure, temperature and
phase state teaching experiment bench. The subcritical, supercritical pressure, temperature and
phase state teaching experiment bench includes an experiment box body, a
steam generation cylinder arranged in the experiment box body, a
light source generator located at the rear side of rear transparent
quartz glass, a
heating system arranged in the experiment box body, a cooling
system arranged in the experiment box body, a temperature sensor arranged on the
steam generation cylinder, a
pressure sensor arranged on the
steam generation cylinder, a vapor injection valve communicated with the steam generation cylinder, a liquid
discharge valve communicated with the steam generation cylinder, and an upper computer which is connected with the
light source generator, the
heating system, the cooling
system, the temperature sensor and the
pressure sensor respectively; and the front side end and the rear side end of the steam generation cylinder are provided with front transparent
quartz glass and the rear transparent
quartz glass respectively in a sealing manner. The subcritical, supercritical pressure, temperature and
phase state teaching experiment bench has the advantages of wide testing range, high bearing pressure, simple operation, safety and reliability, and can improve experiment efficiency.