Introduction to various parts of the fume hood: Understand the internal and external structure of the fume hood

Fume hoods are important equipment used in laboratories to remove harmful gases and dust. Their internal and external structures are complex, and all parts work together to ensure the safety and cleanliness of the laboratory environment. The following is a detailed introduction to each part of the fume hood:

First, external structure

Cabinet body

The cabinet body of a fume hood is usually made of high-quality steel, cold-rolled steel plates and other materials, and undergoes anti-corrosion treatment, such as acid washing, phosphating and then powder coating, which has excellent corrosion resistance and heat resistance.

Design: The cabinet body is reasonably designed with a solid structure, capable of withstanding certain pressure and impact. Meanwhile, the surface of the cabinet is smooth and flat, making it easy to clean.

Window

Materials: The Windows are mostly made of tempered glass, acrylic glass or plastic, featuring explosion-proof and impact-resistant properties.

Function: The window provides a visual operation interface for staff, facilitating the observation and operation of samples and instruments during the experiment. Meanwhile, the window can move up and down or left and right to adapt to different operational requirements.

Cabinet door

Material: Cabinet doors are usually made of high-quality steel or wood, and their surfaces have undergone anti-corrosion or fireproof treatment.

Function: The cabinet door is used to enclose the internal space of the fume hood to prevent the leakage of harmful gases and dust. The cabinet door can be opened up and down, facilitating the entry and exit of laboratory personnel and the placement of items.

Control panel

Location: The control panel is usually designed on the outside of the fume hood for easy observation and operation.

Function: The control panel is equipped with various control switches and indicator lights to control the working status of the fan, lighting and other equipment of the fume hood.

Handles and hinges

Materials: Handles and hinges are usually made of high-quality steel or alloy materials and have undergone anti-corrosion treatment.

Function: Handles and hinges are used to open and close the cabinet door, facilitating the entry and exit of laboratory personnel and the placement of items.

Second, internal structure

Work surface

Materials: The workbench surface is usually made of solid core physical and chemical boards, stainless steel plates and other materials, featuring resistance to acids and alkalis, strong corrosion and high temperatures.

Function: The workbench surface is the main platform for laboratory personnel to conduct experimental operations and can withstand the corrosion and impact of various chemical substances. Meanwhile, the workbench surface should also be easy to clean, so that the laboratory personnel can clean and maintain the workbench at any time.

Deflector plate

The material: The deflector plate is usually made of materials such as antistatic board, which has the characteristics of acid and alkali resistance and high temperature resistance.

Function: The deflector plate is used to guide the uniform distribution of air flow inside the fume hood and improve the exhaust effect. By adjusting the position and Angle of the deflector plates, the airflow distribution inside the fume hood can be optimized, and the collection efficiency of harmful gases can be improved.

Filter

The interior of a fume hood is usually equipped with two types of filters: primary filters and high-efficiency filters.

Function: The filter is used to filter out harmful substances produced during experiments, protecting the safety of laboratory personnel and the laboratory environment. The primary filter is used to filter out large particles such as dust and impurities. High-efficiency filters can efficiently filter out tiny particles and harmful gases in the air.

Fan

Function: The fan is one of the core components in the fume hood, responsible for discharging the harmful gases and dust inside the fume hood to the outside through the exhaust duct. Meanwhile, the fan also provides sufficient ventilation for the fume hood, ensuring that the personnel and samples during the experiment are fully protected.

Lighting equipment

Type: The interior of a fume hood is usually equipped with lighting devices such as fluorescent lamps or LED lights.

Function: The lighting equipment provides sufficient light for laboratory personnel, facilitating the observation and operation of samples and instruments during the experiment. At the same time, lighting equipment also needs to have functions such as dust-proof and water-proof to ensure its long-term stable operation.

Interface of water, electricity and gas

Function: The interior of the fume hood is also equipped with water pipes, power sockets, gas pipelines and other connection interfaces required for experiments, facilitating the connection of various experimental equipment and instruments by laboratory personnel.

Third, other accessories

Cup trough and faucet

Function: The cup slot is used to hold laboratory vessels, waste liquid bottles and other items. The faucet is used to provide the water source needed for the experiment. These accessories are usually installed above or on the side of the fume hood's work surface, making it convenient for laboratory personnel to access and operate them.

Pulleys and tracks

Function: Pulleys and tracks are used to support the movement and position adjustment of the window. These accessories are usually made of high-quality steel or plastic, featuring wear resistance and corrosion resistance, which can ensure the stable operation and long service life of the window.

In conclusion, the internal and external structure of a fume hood is complex and delicate, with all parts working in coordination to ensure the safety and cleanliness of the laboratory environment. When using fume hoods, laboratory personnel should fully understand their structural and functional features and strictly follow the operating procedures for operation and maintenance.