Air supplementary type air exhaust cabinet

Abstract

The invention relates to an air supplementary type air exhaust cabinet. The air supplementary type air exhaust cabinet is used for solving the problem of energy waste caused by air pumping when a traditional air exhaust cabinet is used. The air supplementary type air exhaust cabinet comprises a cabinet body, a door piece set, an air supplementary unit and an air guiding unit, wherein the cabinet body is provided with an inner shell, an operating chamber and an air inlet are formed by encircling of the inner shell, an operating window opening is formed in the surface, opposite to the air inlet,of the cabinet body, and a first airflow channel is formed between the cabinet body provided with the operating window opening and the inner shell provided with the air inlet; the door piece set comprises an outer door piece and an inner door piece, the outer door piece can be used for opening and closing the operating window opening, and the inner door piece can be used for opening and closing the air inlet of the inner shell; one end of the air supplementary unit is connected to the outdoor place through an outdoor pipe, and the other end of the air supplementary unit is connected to the first airflow channel through an extending pipe; and one end of the air guiding unit is connected to an air outlet of the inner shell, and the other end of the air guiding unit is connected to the outdoor place through a guiding pipe or air is treated intensively.

Description

technical field [0001] The invention relates to an exhaust cabinet used in a chemical work room, in particular to an exhaust cabinet used to supply outdoor air into the operating space of the exhaust cabinet, so as to prevent the exhaust cabinet from being directly carried out by an airtight air-conditioned room. Air extraction, resulting in insufficient air-conditioning cooling in the air-conditioning room and waste of energy. Background technique [0002] In the process of laboratory work, it is often necessary to carry out chemical preparation operations and microbial experiments. Since harmful substances are likely to be produced in the above operations, it is necessary to prevent the harmful substances from being exposed to the air and cause environmental pollution, and to prevent operators from accidentally inhaling them. These are important issues that the industry must guard against at present. [0003] Please refer to figure 1 , it is a kind of traditional exhaust...

AI Technical Summary

Problems solved by technology

[0005] The above-mentioned traditional exhaust cabinet adopts the supplementary air type exhaust, and through the operation window 92 opened by the door sheet 93, the compensation airflow is obtained from the supplementary wind power system of the building and enters the operation room A of the exhaust cabinet 9. Such a design, Air-conditioning energy consumption of air-conditioning equipment 90 due to supplementary air

Moreover, the supplementary air flow cannot establish a stable air flow pattern in the operating room A of the exhaust cabinet 9, so the problems of air turbulence and eddy current have not been solved, and the risk of overflow that endangers the health and safety of experimenters still exists

In addition, if multiple exhaust cabinets 9 are used in parallel in the airtight room of the air conditioner 90, it will result in higher energy consumption.

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