Explosion-proof Air Conditioner

Solution of Explosion-proof Air Conditioner

I. Overview of Explosion-proof Air Conditioner
The explosion-proof air conditioner is an air conditioning equipment specially designed for operation in flammable and explosive environments. Through special structures and technologies, it effectively prevents factors such as electrical sparks and high temperatures that may cause explosions, ensuring the safety and comfort of the workplace.

 

II. Demand Assessment
1. Determine the hazard level of the usage place, such as Zone I and Zone II for gas explosion-proof, or Zone 20, Zone 21, and Zone 22 for dust explosion-proof, etc.
2. Measure the area and height of the usage space, and calculate the required cooling/heating load.
3. Understand the variation range of environmental temperature and humidity, as well as the special requirements for air quality.

III. Product Selection
1. Selection of Explosion-proof Type
    - Flameproof Type: Suitable for places with high-energy ignition sources.
    - Increased Safety Type: Used in areas with lower ignition source energy.
2. Cooling/Heating Capacity
    - Select an air conditioning unit with the appropriate power based on the calculated load.
    - Consider the energy efficiency ratio of the equipment to reduce operating costs.
3. Function Configuration
    - Dehumidification Function: Ensure dry air in a high-humidity environment.
    - Air Purification: Remove harmful gases and particulate matter.

 

IV. System Design
1. Air Conditioner Layout
    - Arrange the positions of the indoor and outdoor units reasonably to ensure good ventilation.
    - Consider the pipeline direction to reduce energy loss.
2. Electrical System
    - Adopt explosion-proof electrical components, such as explosion-proof motors and controllers, etc.
    - Wiring complies with explosion-proof requirements to prevent spark generation.
3. Control and Monitoring
    - Equip with an intelligent control system to achieve remote monitoring and operation.
    - Install temperature and pressure sensors to monitor the operating status in real-time.

V. Explosion-proof Treatment
1. For window-type explosion-proof air conditioners, mainly conduct explosion-proof treatment on the internal circuit control part, compressor, etc. The installation method is the same as that of ordinary window-type air conditioners.
2. For split-type explosion-proof air conditioners (wall-mounted and cabinet-type), conduct explosion-proof treatment on the indoor and outdoor units separately. Special processes and manufacturing methods are adopted to ensure reliable explosion-proof performance.
3. Explosion-proof air conditioners are suitable for Zone 1 and Zone 2 hazardous locations, as well as Class IIA, IIB, and IIC gaseous environments, comply with the requirements of GB3836-2000 and IEC60079 or EN60079 standards.
4. According to the structural form, explosion-proof air conditioners are divided into single-unit type, wall-mounted type, and cabinet type. According to the function, they are divided into single-cooling type and cooling and heating type to meet different environments and requirements.

 

VI. Installation and Commissioning
1. Construction is carried out by a professional installation team, following relevant explosion-proof installation specifications.
2. Conduct airtightness tests to ensure the sealing of the air conditioning system.
3. Commission various parameters of the air conditioner, such as temperature and wind speed, to meet the design requirements.

 

VII. Fault Solution:
1. The reasons for the explosion-proof air conditioner not cooling may include insufficient refrigerant, poor heat dissipation of the condenser, compressor failure, etc. Timely inspection and repair are required.
2. Regularly clean the filter screen of the explosion-proof air conditioner to avoid problems of poor or no air output caused by dust accumulation.
3. Check whether the refrigeration copper pipe has leaks or cracks and replace the damaged components in time.

 

VIII. Maintenance and Service
1. Regularly inspect the appearance of the air conditioner for any damage or corrosion.
2. Clean the filter screen and heat exchanger to ensure good heat exchange and ventilation effects.
3. Inspect and maintain the electrical system and calibrate the sensors.

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