详情描述

All-steel ventilation cabinet:

1. Cabinet: Constructed from 1.0mm thick Shanghai Baosteel hot-dipped galvanized steel plate, finished with automatic epoxy resin electrostatic powder coating and high-temperature curing, resistant to acid and alkali corrosion, suitable for chemical laboratories. It features sturdy and load-bearing capabilities.

2. Drainage plate (liner sideboard): Made of 5mm thick HPL board.

3. Countertop: Made of 12.7mm thick core chemical board, reinforced to 25.4mm at the front edge.

4. Glass Sliding Door: Equipped with synchronous wheels, synchronous belts, and synchronous shaft for smooth and effortless opening. Offers infinite stopping positions at any point without tilting. The view window is made of PVC profiles and 5mm tempered clear glass, with a counterweight system of rear sliding track and noise-reducing sealing felt strip.

5. Features a liquid crystal control panel for operation.

6. Includes 4 10A single 5-hole outlets.

7. Lighting mode: Instant-start LED three-proof lamp.

 

Fume hoods, also known as smoke cabinets or ventilation cabinets, are large equipment used in laboratories, particularly chemical labs. Their purpose is to minimize contact between the experimenter and harmful gases. Full isolation requires the use of a glove box. Fume hoods serve as the primary barrier to protect personnel from the hazards of toxic chemical fumes. They can act as crucial safety backup equipment, effectively expelling harmful gases during chemical experiment failures, chemical smoke, dust, and toxic gas emissions, thereby safeguarding staff and the laboratory environment.

Ventilation Hood Usage

First, stand or sit in front of the cabinet, then lower the glass door as much as possible. Simply reach your hand through the bottom of the door to perform the experiment. Since the exhaust fan draws air inward through the open door, harmful gases will not溢出in large quantities under normal circumstances. Caution: When two or more fume hoods share one fan, only one operator should control the on/off of the fan to avoid operational errors or mismanagement. When in use, the fume hood should be topped up with air for 10 minutes every 2 hours.

Safety Precautions for the Use of Fume Hoods

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Indoor air temperature ranges between -5℃ and +40℃, with a 24-hour average not exceeding +25℃.

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Always ensure proper ventilation in the laboratory, even when fume hoods are not in use, as it benefits the health of laboratory personnel.

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When two or more fume hoods are operating with a single fan, to prevent operation errors or misuse, the "on" and "off" controls of the fan must be handled by a single operator; if another fume hood is temporarily not in use or needs to be shut down, use the air volume control valve to seal the ventilation opening; avoid repeatedly turning the fan on and off, as this not only damages the fan's lifespan but also affects the experimental results.

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When in use, avoid disturbances to the fume hood caused by reverse airflow from personnel movement.

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The fume hood should be supplemented with 10 minutes of fresh air every 2 hours (i.e., by opening windows for ventilation); for use exceeding 5 hours, windows should be left open to prevent negative pressure inside.