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Environment control system and method

A control system and environment technology, applied in general control systems, control/regulation systems, program control, etc., can solve the problems of not paying attention to local exhaust valves, users being exposed to harmful substances, etc., to reduce the possibility of Effect

Inactive Publication Date: 2018-09-14
YAMATAKE HONEYWELL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] When the local exhaust valve connected to the fume hood is closed in the closed position as described above, and the user opens the window frame of the fume hood to handle chemicals, since the local exhaust valve is closed, no exhaust will occur. gas, potentially exposing the user to hazardous substances
Especially when the local exhaust valve has been closed due to the contact input of the local exhaust valve or the contact input of the control device, the user may not notice that the local exhaust valve is closed and then start the fume hood. usage of

Method used

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  • Environment control system and method

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Embodiment Construction

[0034] Embodiments of the present invention will be described below with reference to the drawings. figure 1 It is a block diagram showing the configuration of the environmental control system according to the embodiment of the present invention. The environment control system of the present embodiment is made up of following components: fume hood 101, it is arranged in the room 100; Local exhaust pipe 102, it is connected with fume hood 101; Ordinary exhaust duct 104, which discharges the air of room 100; local exhaust valve EXV, which adjusts the air volume of local exhaust duct 102; intake valve MAV, which adjusts the air volume of air intake duct 103; ordinary exhaust valve GEX, It adjusts the air volume of the common exhaust pipe 104; the controller 105 controls the local exhaust valve EXV; the controller 106 controls the intake valve MAV; the controller 107 controls the common exhaust valve GEX; control the entire system; and a communication line 109 that connects the r...

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Abstract

The invention provides an environment control system and method, which can reduce the possibility that a user is exposed to harmful substances. The environment control system comprises a fuming hood (101), which is arranged in a room (100); a local exhaust valve (EXV), which can adjust the exhaust amount of the fuming hood (101); a controller (105), which closes the local exhaust valve (EXV) afterreceiving an external command; and a controller (108), which opens the local exhaust valve (EXV), when detecting that the fuming hood (101) is in a on-state, and the local exhaust valve (EXV) is in aoff-state.

Description

technical field [0001] The invention relates to an environment control system for controlling the exhaust air volume of a local exhaust device such as a fume hood, which locally exhausts harmful substances generated in research facilities, hospitals, factories, etc. . Background technique [0002] The environmental control system is a system for strictly controlling the temperature, humidity, pressure, air flow, and cleanliness of indoor air in research facilities, hospitals, factories, etc., for safety management and quality assurance. In this extreme environment system, a fume hood (fume hood) is used as a device to prevent the diffusion of harmful substances generated in chemical experiments and the like into the room and to prevent contamination of the human body. [0003] The fume hood has an enclosure (casing) with a frame door that can be opened and closed up and down or left and right, and a user can protrude into the casing from the frame door. In order to prevent...

Claims

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Application Information

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IPC IPC(8): G05B19/042B08B15/02
CPCB08B15/023G05B19/0423G05B2219/25257B01L1/00B01L2200/0684B01L2300/048B01L2300/049B01L2300/10B08B15/02F24F7/007F24F7/08G05D7/0635
Inventor 大村林太郎大泽信雄
Owner YAMATAKE HONEYWELL CO LTD
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