JPS5541306A - Controlling device for feeding and discharging air for environmental test chamber - Google Patents

Controlling device for feeding and discharging air for environmental test chamber

Info

Publication number
JPS5541306A
JPS5541306A JP11221178A JP11221178A JPS5541306A JP S5541306 A JPS5541306 A JP S5541306A JP 11221178 A JP11221178 A JP 11221178A JP 11221178 A JP11221178 A JP 11221178A JP S5541306 A JPS5541306 A JP S5541306A
Authority
JP
Japan
Prior art keywords
air
signal
feeding
transmitter
specimen
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP11221178A
Other languages
Japanese (ja)
Inventor
Seishiro Ogasawara
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP11221178A priority Critical patent/JPS5541306A/en
Publication of JPS5541306A publication Critical patent/JPS5541306A/en
Pending legal-status Critical Current

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  • Ventilation (AREA)

Abstract

PURPOSE: To enable to control feeding and discharging proper and necessary volumes of air automatically by securing a supply of air consumed by a specimen in a chamber and a ventilating air necessary for workmen in the chamber under keeping a pressure in the environmental test chamber.
CONSTITUTION: When an air volume consumed by a specimen 2 installed in an environmental test chamber is less than a ventilating air volume necessary for workmen, a control valve 3 for feeding air inputs a signal from a transmitter 5 for controlling ventilated volume by an operation of a signal switching device 7 and a control valve 4 for discharging air inputs a signal from a transmitter 6 for controlling indoor pressure by an operation of a signal switching device 8. When the air volume consumed by the specimen 2 is increased, the control valve 4 for discharging air is closed and the signal from the transmitter 6 for controlling the indoor pressure is interrupted by the signal switching device 8, while, the control valve 3 for feeding air is interrupted from the signal of the transmitter 5 by the operation of the signal switch in device 7 and inputs the signal from the transmitter 6 for controlling the indoor pressure, thereby, a control for feeding air of which volume is corresponding to the air volume consumed by the specimen 2 is effected.
COPYRIGHT: (C)1980,JPO&Japio
JP11221178A 1978-09-14 1978-09-14 Controlling device for feeding and discharging air for environmental test chamber Pending JPS5541306A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11221178A JPS5541306A (en) 1978-09-14 1978-09-14 Controlling device for feeding and discharging air for environmental test chamber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11221178A JPS5541306A (en) 1978-09-14 1978-09-14 Controlling device for feeding and discharging air for environmental test chamber

Publications (1)

Publication Number Publication Date
JPS5541306A true JPS5541306A (en) 1980-03-24

Family

ID=14581026

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11221178A Pending JPS5541306A (en) 1978-09-14 1978-09-14 Controlling device for feeding and discharging air for environmental test chamber

Country Status (1)

Country Link
JP (1) JPS5541306A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01309998A (en) * 1988-06-07 1989-12-14 Nippon Steel Corp Production of composite electroplated steel sheet having superior corrosion resistance and fine surface luster

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01309998A (en) * 1988-06-07 1989-12-14 Nippon Steel Corp Production of composite electroplated steel sheet having superior corrosion resistance and fine surface luster
JPH055914B2 (en) * 1988-06-07 1993-01-25 Nippon Steel Corp

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