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Baike Teao Explosion-proof Refrigerator Series
Release time:
Aug 07,2023
Source:
The Baike Teao brand explosion-proof refrigerator is suitable for departments such as petroleum, chemical industry, pharmaceuticals, aerospace, laboratories, storage rooms, and military, designed for hazardous locations in Zone 1 or Zone 2 with explosive gas mixtures of Group II B and temperature class T4. The BL series industrial-grade integrated explosion-proof refrigerator is manufactured using integrated explosion-proof technology according to the requirements of industrial environments, featuring a Group II B explosion-proof refrigeration system.
The Baike Teao explosion-proof refrigerator uses an electronic temperature control system, which is the second generation of products following the mechanical temperature control explosion-proof refrigerator. The main difference between the electronic temperature control explosion-proof refrigerator and the mechanical temperature control explosion-proof refrigerator lies in the different structures of the temperature controller and its electrical circuits, while the cabinet structure and refrigeration working principle are roughly the same as those of mechanical temperature control refrigerators, which will not be repeated here.
The electronic temperature control stainless steel explosion-proof refrigerator comes in both direct cooling and indirect cooling types, with a variety of control functions. In addition to controlling the compressor's operation based on the temperatures of the refrigeration and freezing compartments, it can automatically display the temperatures of these compartments, defrost automatically based on frost thickness and compressor working time, and has functions such as over-voltage protection, automatic deodorization, and voice prompts. Generally speaking, electronic temperature control is more complex than mechanical temperature control. Whether it is electronically controlled or computer-controlled explosion-proof refrigerators, they represent the latest application of fuzzy control systems, solving the control issues of multifunctional explosion-proof refrigerators; however, the complexity of control also brings many inconveniences to maintenance personnel.
Electronic temperature control mostly uses thermistor temperature controllers (temperature sensors), as their resistance decreases with increasing temperature and increases with decreasing temperature. Utilizing this characteristic allows for the control of the compressor's operation and shutdown, thus achieving circuit control.
Implementation Standards
The entire explosion-proof refrigerator adopts internationally leading ultra-weak electric technology to isolate intrinsically safe circuits, manufactured and explosion-proof treated through special processes. The design and manufacturing of the product strictly adhere to national relevant standards:
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GB/T3836.1-2021 Electrical equipment for explosive gas atmospheres - Part 1: General requirements for equipment
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GB/T3836.2-2021 Electrical equipment for explosive gas atmospheres - Part 2: Equipment protected by flameproof enclosures "d"
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GB/T3836.4-2021 Electrical equipment for explosive gas atmospheres - Part 4: Equipment protected by intrinsic safety "i"
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GB/T3836.9-2021 Electrical equipment for explosive gas atmospheres - Part 9: Equipment protected by encapsulation "m"
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GB/T3836.15-2017 Electrical equipment for explosive gas atmospheres - Part 15: Design, selection, and installation of electrical installations.
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