Stainless steel fume hood is a kind of equipment used in laboratories, mainly used to exhaust harmful gases in the room and ensure the air quality in the laboratory. Its core components include cabinet, air inlet, filter, exhaust device and control system, etc.
| Material: | Steel with powder coated/ stainless steel |
| Motor: | Available |
| Window: | tempered glass |
Fume hoods are an indispensable type of laboratory furniture. They play the role of exhaust and ventilation in the laboratory. The structure of the fume hood is up and down, with exhaust holes on the top, where fans can be installed. There are guide plates, circuit control touch switches, power sockets, etc. in the upper cabinet. The perspective window is made of tempered glass and can be moved left and right or up and down. For people to operate. The lower cabinet adopts the style of an experimental side table, with a countertop on the top and a cabinet body below. Small water cups and faucets can be installed on the countertop. The materials of the fume hood are various, including all-steel, steel-wood, all-wood, aluminum-wood, plastic-steel, PVC structure, etc. The countertop is the place that directly contacts the operator, and is composed of solid physical and chemical boards, stainless steel plates, PVC, ceramics and other materials. The fume hood is generally installed against the wall. In the middle of the front is a transparent door that can be moved up and down (mostly glass), and the opening height is generally 100-600 mm. Behind the door is the working surface for the experiment, with connections for experiments such as water pipes, sewers, power supplies, vacuum pumps, gas pipelines, etc., and there are lights with protective covers on them for lighting. After the air is drawn away by the exhaust fan at the top front of the cabinet, it is either led to another place through a duct (called full ventilation) or filtered and recycled (called ductless ventilation). Most fume hoods will sound an alarm to remind the operator when (1) the exhaust volume is too small or (2) the front glass door is opened too wide. Generally, the wind speed at the operating port after the glass door is opened should not be less than 0.5m/s. The internal exhaust fan speed and light have adjustable switches. When using, the person stands or sits in front of the cabinet, lowers the glass door as much as possible, and reaches into the cabinet through the door to conduct experiments. Because the exhaust fan draws air inward through the open door, harmful gases will not overflow in large quantities under normal circumstances.
Strong corrosion resistance:
Stainless steel is corrosion-resistant and can resist the erosion of a variety of chemicals, ensuring the accuracy and safety of the experimental process.
Excellent ventilation performance:
It is designed with multiple vents to keep the air flowing inside the cabinet, prevent odor or moisture, reduce the risk of fire, and ensure laboratory safety.
Strong and durable:
Stainless steel is strong and can withstand greater pressure and impact, and can maintain good use even in harsh environments.
Easy to clean and maintain:
The surface of stainless steel is smooth, not easy to accumulate dust and dirt, easy to clean, just wipe with a damp cloth to restore the gloss.
Beautiful and practical:
The appearance design is simple and generous, which improves the overall aesthetics and meets the diverse needs of different laboratories and users.
Long life:
All-steel fume hoods made of high-quality stainless steel materials have a long service life and low maintenance cost.
Environmental protection and energy saving:
Some stainless steel fume hoods use high-efficiency energy-saving fans and air circulation control technology to reduce energy consumption and exhaust emissions.
Fume hood classification method Fume hoods are classified according to the exhaust method: they are divided into three categories: upper exhaust type, lower exhaust type and upper and lower exhaust type. In order to ensure uniform wind speed in the working area, the fume hoods for the cold process should adopt the lower exhaust type, and the fume hoods for the hot process should adopt the upper exhaust type. For the process with unstable heat generation, exhaust ports can be set up at the top and bottom to adjust the ratio of the upper and lower exhaust volume with the change of heat generation in the cabinet, so as to obtain uniform wind speed.
Fume hoods are classified according to the air intake method: Full exhaust fume hood: The indoor air intake is circulated in the cabinet and then discharged to the outside, which is called full exhaust type. This is a very widely used type. Make-up air fume hood: When the fume hood is set in a room with heating or temperature and humidity control requirements, in order to save heating and air conditioning energy consumption, the method of taking supply air from the outside and circulating it in the cabinet and then discharging it to the outside is called a make-up air fume hood. Variable air volume fume hood: The ordinary fixed air volume system requires manual adjustment of the fixed blade air valve to adjust the exhaust volume of the fume hood. When the valve is adjusted to a certain angle, the desired surface wind speed is achieved. Variable air volume control is to change the air volume to achieve a given surface velocity by adjusting the sensor of the valve. Of course, the standard type has low cost and the variable air volume has high cost, which is suitable for occasions requiring high precision.
Fume hoods are classified according to the use status: they can be divided into integral lower open type, floor-standing type, two-sided type, three-sided glass type, desktop type, one-piece type, and special fume hoods designed for radioactive experiments, synthetic experiments, and perchloric acid experiments according to the needs of different experiments.
Chemical laboratory: In chemical experiments, stainless steel fume hoods can withstand the corrosion of various chemicals such as acids and alkalis to ensure the smooth progress of the experiment.
Biosafety laboratory: In the field of biosafety, stainless steel fume hoods can effectively prevent the spread and transmission of viruses, bacteria and other pathogens, while ensuring unimpeded air circulation.
Pharmaceutical R&D laboratory: In the process of drug development and production, stainless steel fume hoods can prevent drugs from corroding equipment and ensure that the quality and safety performance of drugs meet the standards.
Food industry: Stainless steel fume hoods meet food hygiene standards and are suitable for food testing laboratories without contaminating food samples.
Biopharmaceuticals: SUS304 stainless steel fume hoods are widely used in clean environments with high hygiene requirements such as biopharmaceuticals, and have excellent acid and alkali resistance and corrosion resistance.
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