Laboratory ventilating management control system

Abstract

The invention relates to the technical field of laboratory ventilating control equipment, in particular to a laboratory ventilating management control system. The laboratory ventilating management control system comprises a ventilating management controller, a first POWER, a differential pressure sensor, a temperature sensor, a plurality of ventilation hoods, a PC communication interface, a ventilating system starting device, an air supply air valve control/Venturi valve control device, an auxiliary exhausting air valve control/Venturi valve control device, a switching value air valve, an illuminating control device and a touch screen. The constant differential pressure is utilized, the differential pressure in a room is detected and compared with a preset value, and the size of a valve isadjusted (the air volume of a Venturi valve is adjusted), for example, when the preset value is larger than an actual value, under the condition of meeting the air exchange frequency, auxiliary exhausted air is increased, or supplied air is reduced; when the preset value is smaller than the actual value, under the condition of meeting the air exchange frequency, the auxiliary exhausted air is reduced, and the supplied air is increased; and intelligent control management is achieved, operation is easy, and use is convenient.

Description

technical field [0001] The invention relates to the technical field of laboratory ventilation control equipment, in particular to a laboratory ventilation management and control system. Background technique [0002] At present, laboratory energy saving is one of the biggest challenges for managers and users. The control of harmful chemical gases requires a large amount of air discharge. Therefore, in order to supplement the discharged air, the supply of laboratory air conditioners (cooling and heating) is a decisive cost— —A laboratory with the same area requires five times the air-conditioning supply than an office. [0003] The high-cost operation of the laboratory leads to high requirements for the variable air volume control system of the laboratory. On the premise of ensuring the safety of the wind speed on the surface of the fume hood, the air discharge is effectively limited. Then there are certain requirements for cleanliness in the laboratory, especially the clean...

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Problems solved by technology

[0002] At present, laboratory energy saving is one of the biggest challenges for managers and users. The control of harmful chemical gases requires a large amount of air to be discharged. Therefore, in order to supplement the discharged air, the supply of laboratory air conditioners (cooling and heating) is a decisive cost— —A laboratory with the same area requires five times the air conditioning supply than an office

[0003] The high-cost operation of the laboratory leads to high requirements for the variable air volume control system of the laboratory

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