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Ventilation System Engineering Important Safety Equipment in the Laboratory

Nov 27, 2018

Laboratory Ventilation System Engineering:


In the laboratory ventilation engineering, mechanical ventilation is generally used, mainly through ventilation power devices and comprehensive ventilation and local ventilation equipment, such as: fume hood, atomic absorption hood, universal exhaust hood, etc.


Main ventilation equipment:


Fume hood: The fume hood is an important safety device in the laboratory and provides an effective means of local ventilation.

Use environment: carry out flammable, explosive and volatile toxic and harmful gas experimental operations, carry out detection of unknown performance items, qualitative and quantitative experimental operations.

Ventilation cabinet structure style: three-stage group desktop (top cabinet, operation countertop, lower cabinet); desktop fume hood step-in / floor-standing fume hood.

Fume hood type: steel wood fume hood, all steel fume hood, glass reinforced fume hood, PP fume hood.

Ventilation treatment system engineering:


  In the daily operation process, the laboratory will generate corresponding exhaust gas. If it is discharged into the atmosphere without treatment, it will cause pollution to the surrounding environment and cause damage to the human body. For the inorganic waste gas and organic waste gas contained in the exhaust gas, according to the exhaust gas. Different types of different exhaust gas treatment schemes are made.


Inorganic waste: inorganic waste gas such as nitrogen oxides, sulfides, hydrogen chloride, hydrogen cyanide, and sulfur dioxide.

The friend of the purification workshop project may not know which system components of the purification engineering system are mainly composed. The main components of the (purification engineering) system, through the introduction of this article, I hope that my friends can understand the purification project better, better, Better understand the purification system

The main components of the purification project are six parts: air duct system, ground system, electrical system, automatic control system, water supply and drainage system, and air filtration system.

Ground system: Epoxy resin is generally used to clean the ground. Envelope structure system: Simply speaking, it is the top part, the wall and the ground part, that is, the six sides that make up the three-dimensional confined space. To the fine, including doors and windows, decorative arcs, etc.;

Water supply and drainage system: water supply, drainage pipes, facilities and control devices;

Air duct system: including air supply, return air, fresh air, exhaust duct, control device, etc.; air conditioning system: including cold (hot) water unit (including water pump, cooling tower, etc.) (or air-cooled pipeline level, etc.), tube Road, combined purification air conditioning box (including mixed flow section, initial effect section, heating section, refrigeration section, dehumidification section, pressurization section, medium effect section, static pressure section, etc.);

Electrical system: lighting, power, and weak electricity, including purification lamps, sockets, electrical cabinets, lines, monitoring, telephone and other strong and weak systems;

Automatic control system: including temperature control, temperature control, air volume wind pressure control, opening sequence and time control;

Air filtration system: other purification equipment such as high-efficiency filter for junior high school: such as ultraviolet lamp, ozone, transfer window, air shower (including cargo shower), ultra-clean workbench, interconnection lock and other purification auxiliary equipment.