Water-vapor separation device with active drainage function

Abstract

The invention provides a water-vapor separation device with an active drainage function. The water-vapor separation device comprises a vacuum water-vapor separation vessel, wherein a water accumulation membrane is arranged in the vacuum water-vapor separation vessel; one end of a first vacuum tube is communicated with the bottom of the vacuum water-vapor separation vessel, and the other end of thefirst vacuum tube is communicated with the atmosphere; one end of a second vacuum tube is communicated with the lateral part of the vacuum water-vapor separation vessel, and the other end of the second vacuum tube is communicated with a hollow fiber tube; an air inlet end of a second normally closed solenoid valve is communicated with the top of the vacuum water-vapor separation vessel; a first port of a first two-position three-way solenoid valve is communicated with an air outlet end of the second normally closed solenoid valve; an air inlet end of a vacuum pump is communicated with a second port of the first two-position three-way solenoid valve; a second port of a second two-position three-way solenoid valve is communicated with an air outlet end of the vacuum pump; an air inlet end of a second normally open solenoid valve is communicated with a third port of the second two-position three-way solenoid valve; and an air outlet end of the second normally open solenoid valve is communicated with the top of the vacuum water-vapor separation vessel. The water-vapor separation device provided by the invention solves the problems that the accumulated water is quickly discharged and water and vapor are not separated thoroughly.

Description

technical field [0001] The invention belongs to the field of medical equipment, in particular to a water vapor separation device with an active drainage function. Background technique [0002] In the ultrasonic tumor treatment system, the ultrasonic wave emitted by the phased array ultrasonic transducer must pass through the medium water to be coupled into the tissue and focus. Because the degassed water has good sound permeability and is cheap, degassed water is often used as the medium water. When the treatment head When working with high strength and high power, the degassing completeness of the degassed water is affected by the water temperature in the hollow fiber degassing membrane, the vacuum pressure value of the vacuum pump and the vacuum flow rate of the vacuum pump, and the temperature of the medium water in the hollow fiber membrane rises during the treatment process. The dissolved oxygen content in the degassed water will decrease. Insufficient vacuum will lead ...

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Problems solved by technology

[0003] The current conventional equipment usually has the following defects: high vacuum pump negative pressure, large number of booster pumps, high volume and high power, high noise, complex pipeline design, lack of risk analysis and risk measures for single failure of pipelines, installation position between accessories There are strict location requirements, it is not easy to integrate small and portable, the design of the water collector is unreasonable, there is no water accumulation film, the water vapor separation efficiency is low, there is no active water drainage function, the drainage function is poor in adapting to the environment, and there is no constant value of dissolved oxygen. Based on ( Vacuum pressure value, vacuum pump flow rate, degassed water temperature,) vacuum pump speed regulation closed-loop control

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