LEAK DETECTION DEVICE FOR ROTARY TYPE FLUID TRANSPORTING MACHINE SHAFT SEAL PART

Title:

LEAK DETECTION DEVICE FOR ROTARY TYPE FLUID TRANSPORTING MACHINE SHAFT SEAL PART

Document Type and Number:

Japanese Patent JP04300499

Kind Code:

A

Abstract:

PURPOSE: To detect gas leakage from a shaft seal part quantitatively.

CONSTITUTION: Near a driving device 6, there is a gas sensor 2 which detects gas leakage from a cabin 9. An air suction vane 1 which directs the air near the cabin 9 to the driving device forcibly between the driving device of a rotating shaft 7 and the cabin 9. Moreover, a cylindrical windshield 4 is installed so as to surround the rotating shaft 7, the air suction vane 1 and the gas sensor 2, kept between the cabin 9 and the driving device 6. An arithmetic processing device 3 inputs an analyzing value signal which shows gas concentration from the gas sensor 2, and a signal which shows the rotating speed of the rotating shaft 7 from the driving device 6, and computes gas leakage amount = ventilating amount x gas concentration.

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Inventors:

Hosonuma, Akira
Takahashi, Saburo

Application Number:

JP1991000048640

Publication Date:

October 23, 1992

Filing Date:

February 22, 1991

Export Citation:

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Assignee:

MITSUI TOATSU CHEM INC

International Classes:

F17D5/02; F17D5/00; (IPC1-7): F17D5/02

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