How to turn off the air conditioning in the hotel?

How to use the central air conditioner in the hotel is as follows: Set the switch of the hotel air conditioner according to the temperature of the hotel air conditioner. Just click on the adjustment temperature and set the air volume for adjusting the temperature. Whether the hotel air conditioner is cooling or heating, the air volume adjustment is a signal to strengthen or weaken, so it can be used.

If the hotel air conditioner is a manual switch, you can see that there are strong cold or weak cold and strong hot or weak hot buttons in the settings, just press them. If the hotel air conditioner is a remote control switch, there are generally high-grade, medium-grade and low-grade wind speeds. It can be simply set according to the indoor temperature requirements. ?

Refrigeration principle

Liquid vaporization refrigeration uses the heat absorption of liquid vaporization and the heat release of condensation to realize refrigeration. Liquid evaporates to form steam. When the liquid (refrigerant) is in a closed container, there is no other gas in the container except the liquid and the vapor generated by the liquid itself, and the liquid and vapor will reach equilibrium under a certain pressure.

The steam at this time is called saturated steam, the pressure is called saturated pressure, and the temperature is called saturated temperature. When the liquid is in equilibrium, it will no longer evaporate. At this time, if a part of steam is pumped out of the container, the liquid will inevitably continue to vaporize to generate a part of steam to maintain this balance. ?

When a liquid vaporizes, it absorbs heat, which is called latent heat of vaporization. The latent heat of vaporization comes from the cooled object, which makes the cooled object cool. In order to make this process continue, it is necessary to continuously extract steam from the container and condense it into liquid before returning to the container.

If the vapor extracted from the container is directly condensed into liquid, the temperature of the required cooling medium is lower than the evaporation temperature of the liquid. We hope that the condensation of steam is carried out at room temperature, so it is necessary to increase the pressure of steam to the saturation pressure at room temperature.

Refrigerant will evaporate at low temperature and low pressure, resulting in cold effect; And condense at normal temperature and high pressure to release heat to surrounding environment or cooling medium. Steam condenses into high-pressure liquid at normal temperature and high pressure, and its pressure needs to be reduced to evaporation pressure before it can enter the container.

The liquid vaporization refrigeration cycle consists of four processes: working medium vaporization, steam pressurization, high-pressure steam condensation and high-pressure liquid decompression.

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