Device and method of detecting flow rate/liqiud kind, and device and method of detecting liquid kind

A flow rate/liquid type detecting method for detecting the flow rate of a fluid and, at the same time, detecting any one of or both the type of the fluid and the concentration of the fluid, characterized in that:

• by using a flow rate/liquid type detecting apparatus comprising;
• a main passage through which a fluid to be detected flows,
• an auxiliary passage branched from said main passage, and
• a flow rate/liquid type detecting sensor device provided in said auxiliary passage,
• is provided, and
• in conducting any one of or both the detection of the type of said fluid to be detected and the detection of the concentration of said fluid to be detected, said auxiliary passage opening/closing valve is closed, and said fluid to be detected is allowed to temporarily stay within said flow rate/liquid type detecting sensor device to conduct any one of or both the detection of the liquid type and the detection of the concentration, and
• in detecting the flow rate of the fluid to be detected, said auxiliary passage opening/closing valve is opened to allow the fluid to be detected to flow into said flow rate/liquid type detecting sensor device to detect the flow rate.

A liquid type detecting method for detecting any one of or both the liquid type and concentration of a fluid, comprising the steps of:

• providing a liquid type detecting apparatus comprising;
• a liquid type detecting chamber for allowing a fluid to be detected which has been introduced into a liquid type detecting apparatus body to temporarily stay therein,
• a liquid type detecting sensor disposed within said liquid type detecting chamber, and
• a flow control plate provided within said liquid type detecting chamber so as to surround said liquid type detecting sensor, and
• stopping the introduction of the fluid to be detected into said liquid type detecting apparatus body,
• allowing the fluid to be detected to temporarily stay within said liquid type detecting chamber, and
• conducting the detection of any one of or both the liquid type and concentration of the fluid to be detected.