| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To prevent a residual material from attaching to surfaces, etc., of a float 13a and a float guide 13b of a float switch 10c in a storage tank, eliminate an adverse effect on the float switch 10c and maintain an original function for a long time. <P>SOLUTION: The liquid storage tank 10 is provided with a liquid supply pipe 10b disposed in a tank 10a for reserving a liquid and the float switch 10c for detecting a liquid level and operating, and controls the liquid supplied from the liquid supply pipe 10b into the tank 10a in response to operation of the float switch 10c. A cleaning liquid spray hole 12d is provided on the liquid supply pipe 10b. When the liquid is supplied into the tank 10a, the liquid is sprayed from the cleaning liquid spray hole 12d toward the float 13a and the float guide 13b and cleans their surfaces. <P>COPYRIGHT: (C)2004,JPO</p> |
