详情描述

Full Steel Ventilation Cabinets

1. Cabinet: Made of 1.0mm thick Shanghai Baosteel hot-dipped galvanized steel plate, coated with epoxy resin electrostatic powder spray through an automatic assembly line, high-temperature cured, resistant to acid and alkali corrosion, suitable for chemical laboratories. Features include sturdy and heavy-duty.

2. Drainage plate (liner sideboard): Made of 5mm thick High-Density Polyethylene (HDPE) board)

3. Countertop: 12.7mm thick solid-core melamine board with reinforced front edge up to 25.4mm.

4. Glass Sliding Door: Equipped with synchronous wheel + synchronous belt + synchronous shaft for easy and smooth operation. Can stop at any position without gears, the sliding door remains level. The viewing window is made of PVC profiles + 5mm tempered clear glass, with a counterweight system featuring a rear sliding groove and a noise-reducing sealing felt strip.

5. Features a liquid crystal control panel for operation.

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

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

 

Fume hoods, also known as smoke cupboards or ventilation cabinets, are large pieces of equipment commonly used in laboratories, especially 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 first line of defense in protecting personnel from toxic chemical fumes. They act as critical safety backup equipment, effectively expelling harmful gases during chemical experiments gone awry, chemical smoke, dust, and toxic gases, thereby safeguarding both 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. Place your hand through the bottom of the door to access the cabinet for the experiment. Due to the exhaust fan drawing air inward through the open door, harmful gases should not溢出 in large quantities under normal circumstances. Caution: When two or more fume hoods are operated with a single fan, to prevent operational errors or mishaps, the fan's on/off should be controlled by only one operator. While in use, the fume hoods should be supplemented with 10 minutes of make-up air every two hours.

Caution for the Use of Fume Hoods

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

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In the laboratory, ventilation should be maintained regularly even when the fume hood is not in use, which is beneficial to the health of the experimenters.

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When more than two fume hoods share one fan, to prevent operational errors or misuse, the "on" and "off" controls of the fan must be handled by only one operator; if another fume hood is temporarily not in use or needs to be shut down, use the airflow adjustment valve to seal the ventilation opening; avoid repeatedly turning the fan "on" and "off" simultaneously, as this not only harms the fan's lifespan but also affects the experimental results.

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When in use, avoid disturbances caused by personnel movement that may create counter-ventilation to the fume hood.

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