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Full guide to installation and grounding specifications for explosion-proof double-layer glass reaction kettle
Date: 2025-11-21Read: 1
Explosion proof double-layer glass reactorWidely used in high-temperature, high-pressure, or negative pressure chemical reactions involving flammable and explosive solvents, its safety performance not only depends on the design of the equipment itself, but is also closely related to standardized installation and reliable grounding. Once poorly grounded or improperly installed, it can easily lead to static electricity accumulation, electric sparks, and even explosion accidents.
1、 Installation environment requirements
The equipment should be placed in an explosion-proof laboratory with good ventilation, no open flames, and away from heat sources. The ground should be flat and sturdy, and sufficient space for operation and maintenance should be reserved (it is recommended to have a circumference of ≥ 80 cm). Avoid direct sunlight to prevent glass aging. If using oil bath or electric heating, it is necessary to ensure that the heating system has independent temperature control and over temperature power-off protection.
2、 Key points of mechanical installation
Stable bracket: Made of original stainless steel frame, with bolts tightened in place to prevent shaking during operation;
Jacket connection: The inlet and outlet directions of the cooling/heating medium are correct, and high-temperature resistant silicone or metal hoses are used to avoid pulling the glass interface under stress;
Sealing inspection: Apply vacuum grease to all grinding ports (such as kettle covers, condensers, and drip funnels) to ensure airtightness, but not in excess to avoid contaminating the reaction system.
3、 Electrical and Explosion proof Grounding Specification
Special grounding terminal: Explosion proof motors, agitator housings, and metal brackets must be connected to the laboratory's independent explosion-proof grounding electrode through a yellow green dual color copper core wire (cross-sectional area ≥ 2.5 mm ²), with a grounding resistance of ≤ 4 Ω;
Prohibition of shared grounding: It is not allowed to share grounding wires with water pipes, heating pipes, or other equipment;
Static electricity export: If dealing with low flash point solvents, a static eliminator should be installed at the feed inlet and ensure that the metal components of the entire flow path are equipotential connected;
Power requirements: Connect to an explosion-proof distribution box with leakage protection, with voltage fluctuations not exceeding ± 5%.
4、 Acceptance and testing
After installation, conduct a no-load trial run of the mixing system to check for any abnormal vibrations; Perform a negative pressure holding test at 0.09 MPa for another 30 minutes to confirm no leakage; Finally, professional electricians will test the grounding continuity and insulation resistance.
Strictly following the above specifications can maximize the benefitsExplosion proof double-layer glass reactorThe safety performance provides a solid guarantee for high-risk experiments.