It consists of two parts: the heating chamber and the evaporating chamber. The heating chamber provides the liquid with the heat required to vaporize the liquid to boil. The vaporizing chamber is completely separated by two phases. e liquid vaporizer The steam generated in the heating chamber has a large amount of foam, and after the evaporation chamber of the larger space, e liquid vaporizer the liquid can be separated from the vapor by its own function of condensing or defoaming. Usually the foaming device is located at the top of the evaporator.
The evaporator is divided into three types: normal pressure, pressure and pressure. According to the motion of the solution in the evaporator, there are: a circulating type. The boiling solution is repeatedly heated surface in the heating chamber, such as the central circulation tube type, the hanging basket type, the external heat type, the column type and the forced circulating type, etc. One way type. The boiling solution is applied to the heating chamber by heating the surface and not circulating, which is to discharge the concentrate, such as rising film, falling film type, e liquid vaporizer stirring film type and centrifugal film type. Direct contact. Direct contact heat transfer between heating medium and solution, such as submerged combustion evaporator. In the process of operation, the evaporator is used to consume a large amount of heating steam. In order to save the heating steam, the multi-effect evaporator and steam recompression evaporator can be used. Evaporator is widely used in chemical industry, light industry and other departments.
Volatile inhalation anesthetics are liquid at room temperature. Evaporator can effectively vaporize volatile anesthetics and regulate the concentration of the vapor output of anesthetics. The evaporation of anesthetics requires heat, e liquid vaporizer and the temperature around the evaporator is a major factor in determining the evaporation rate of volatile anesthetics. Contemporary anesthesia machine widely used in the temperature of a flow compensation type evaporator, the change in temperature or fresh air flow, can be compensated by the automatic mechanism to keep the volatile inhalation anesthetics evaporation rate constant, e liquid vaporizer to guarantee the stability of the output concentration of inhalation anesthetics from evaporator. Due to the boiling point of different volatile inhalation anesthetics and saturated vapor pressure and other physical properties, therefore, evaporator with drug specificity, halothane as evaporator, isoflurane evaporator, etc., each other can't general. e liquid vaporizer The evaporator of a modern anesthetic machine is placed outside the anesthetic breathing loop, and there is a separate oxygen flow that is connected to it. The vaporized anesthetic vapor is mixed with the main air and then inhaled by the patient.