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Designed for Hazardous Environments
- Wirings conform to NEC/NFPA 70
- Comply with ATEX/IECEx
- Special design and material to prevent ignition
- Suitable for Zone1/Division 1 and Zone 2/Division 2
- High cooling capacity: 3 to 200 tons
Your Trusted Explosion-Proof Chiller Manufacturer and Supplier
For hazardous environments with flammable gases, vapors, or dust, ChillerOne has specially engineered explosion-proof chillers. These chillers are designed to prevent possible ignition or cause internal sparks while achieving optimal cooling.
With every chiller unit, our engineers carefully select materials and designs to ensure no part can cause fire. Whether you are using our chillers in demanding industries such as aerospace, chemical processing, mining, paint, and oil and gas, our chillers guarantee 100% safety.
ChillerOne explosion-proof chillers feature heavy-duty and reinforced construction, with all components that can cause ignition carefully isolated.
For example, all electrical components like switches and relays are locked in explosion-proof electrical boxes. At the same time, we may incorporate a positive-pressure system with inert gas within the enclosure. This eliminates the possibility of sparking or ignition within the enclosure.
Other parts, like motors, compressors, and water pumps, are also enclosed to prevent ignition. For some chiller designs, we use non-metallic fans to reduce the chances of explosion.
Additionally, ChillerOne explosion-proof chillers have safety sensors that initiate auto shutdown and activate alarm systems. From accurate temperature control, gas detection, to pressure relief systems, we have integrated them into the control system. They ensure the external temperature does not exceed T-Rating.
At ChillerOne, we customize both air-cooled chillers and water-cooled chillers to conform to the safety standards you need for your hazardous environments. Tell us more about your process needs, for a custom-made explosion-proof chillers – talk to our engineers now.
Ideal for commercial and industrial usage, Air-cooling use with explosion proof exterior and components.
Efficient cooling system that uses water to ensure lifespan longevity and has remote control.
Explosion-proof stainless steel material and great cooling system with negative 80 degree temperature control.
High-quality and controlled temperature with manual remote. Great quality and heat dissipation.
Blast fan cooling with Manual and Digital control type. Freezer type and adjustable temperature with different doors.
Supports explosion-proof materials and ideal for industrial use, easy to operate and reduced noise level.
Provides high-productivity and helps keep temperature cool low with no manual control and automatic heat dissipation.
High precision and calculated temperature, has an explosion proof exterior and has available dual control types, manual and digital control.
Reliable Certification
Equipped with complete international certifications, this chiller meets overseas safety codes and is widely adopted by global industrial clients.
Applications of Explosion Proof Chillers
Our explosion proof chiller can effectively deal with the explosive environment formed by the leakage of flammable solvents and gases in the petrochemical production process. It provides cooling for key equipment such as reaction vessels, distillation columns and condensers, which is a crucial equipment for ensuring continuous and safe production.
Our explosion proof design ensures that the production process of antibiotics, vitamins and other drugs can operate safely and reliably even in the presence of flammable and explosive gases such as alcohol and acetone. At the same time, it also meets the strict requirements for process stability in drug production.
In oil and gas extraction and processing sites, our explosion proof chillers can be used to cool compressor units, oil and gas recovery devices, etc., and have an excellent response effect on the inherent flammable gas environment.
In the crushing and drying stages of grain processing and feed production, it can operate safely in workshops filled with flammable dust, prevent dust explosion accidents, and effectively protect your safety.
- Successful Application Examples
The Natural Gas Processing Project of the United Arab Emirates
A certain natural gas processing facility in the United Arab Emirates is located in Zone 2, a hazardous area. The process heat exchange equipment requires continuous cooling. Chillerone delivered an 80-ton explosion-proof chiller. The electrical components and control cabinets were classified and configured by area to avoid introducing conventional ignition sources. After the equipment was put into use, it operated stably in an environment containing combustible gases and met the installation requirements for the hazardous area of the project.
Corrosive Environment in Saudi Petrochemical Plant
A certain petrochemical plant in Saudi Arabia has its cooling equipment exposed to corrosive gases containing H₂S for a long time. The project selected a 120-ton chiller designed for the site’s hazardous-area classification and corrosive operating conditions. The explosion-protection requirements for electrical components and the corrosion resistance of exposed materials were evaluated separately. The final equipment configuration must meet the applicable hazardous-area certification requirements and the site’s material-compatibility specifications. After continuous operation, the equipment did not fail due to chemical corrosion, and the customer considered this solution suitable for harsh industrial environments.
German Solvent Recovery Low-Temperature Process
A certain solvent recovery system in Germany needs to cool ethylene glycol to -5°C, and there are flammable vapors around. Chillerone provided a 15-ton explosion-proof water cooler, with a low-temperature explosion-proof design, to provide a stable cold source for the recovery loop. After the system operation, both the low-temperature process and the requirements for the hazardous area were met, and the solvent recovery efficiency remained stable.
Turkish Paint Production Workshop
A paint factory in Turkey has flammable solvent vapors in its production area, and the cooling equipment must be installed on-site. After evaluating the explosion rating, the project team selected a 30-ton explosion-proof water chiller to provide 18°C process water for the mixing equipment. The equipment configuration was selected to meet the project’s Zone 2 hazardous-area requirements. Before installation, the applicable explosion-protection certification, electrical equipment classification, and site installation requirements were verified against the project’s specifications.
See the Explosion Proof Chiller in Action
Watch how the explosion proof chiller delivers stable temperature control, fast cooling response, and reliable performance in real industrial working conditions.
What Is An Explosion Proof Chiller?
ChillerOne explosion proof chiller is a special industrial cooling equipment specifically designed for flammable and explosive environments such as chemical and petroleum industries. All its electrical components and structures have been designed for explosion-proof purposes, which can effectively isolate electric sparks and prevent the ignition of surrounding gases, dust or vapors.
It not only has the refrigeration function of a conventional chiller, but also has passed strict explosion-proof certification, which is a key equipment for ensuring process cooling and production safety in hazardous locations.
Working Principles of Explosion Proof Chillers
- Step 1: The explosion proof compressor compresses the low-temperature and low-pressure refrigerant gas into high-temperature and high-pressure steam.
- Step 2: The high-temperature and high-pressure steam enters the condenser and dissipates heat to the outside through air cooling or water cooling, condensing into a medium-temperature and high-pressure liquid.
- Step 3: The liquid refrigerant flows through the expansion valve for throttling and is reduced to a low-temperature and low-pressure gas-liquid mixture.
- Step 4: The low-temperature and low-pressure mixture absorbs the heat of the cooling water flowing through its interior in the evaporator and completely evaporates into gas.
- Step 5: The temperature of the cooling water that has absorbed heat drops, and it is sent by the water pump to the equipment that needs to be cooled for heat exchange. After the cooling process is completed, it flows back to the evaporator.
- Step 6: The low-temperature and low-pressure refrigerant gas that has absorbed heat returns to the compressor again to start the next cycle.
Core Components of Explosion Proof Chillers
Explosion Proof Compressor
Explosion proof compressors mainly provide power for the circulation of refrigerants and complete the compression of refrigerant gas. Its motor, junction box and starting device are all sealed in a special explosion-proof enclosure to prevent electric sparks generated inside or high surface temperatures from igniting the external environment. It is the component with the highest explosion-proof grade requirements and the highest cost in our explosion proof chiller.
Explosion Proof Electrical Control System
The explosion proof electrical control system controls the operation of the entire chiller and can also monitor parameters and protect the system. The entire electrical control cabinet, including PLC, contactors, relays and all other electrical components, is integrated into a sturdy flameproof control box to ensure that any electric sparks generated internally are isolated within the box.
Evaporator
The evaporator helps you achieve the cooling effect by allowing the low-temperature and low-pressure refrigerant to exchange heat with the water that needs to be cooled.
Condenser
The condenser mainly dissipates the heat of the high-temperature and high-pressure refrigerant discharged by the compressor to the external environment through air or water. Although both the condenser and the evaporator are heat exchange components, their design and manufacturing quality directly affect the energy efficiency and stability of the explosion proof chiller.
Explosion Proof Water Pump
The water pump drives the cooling water to circulate between the chiller and the equipment that needs to be cooled. Our water pump motor also adopts explosion-proof design to ensure that it will not become a hazard source due to motor problems when pumping liquids.
Explosion Proof Sensor
Detection components installed in various parts of the equipment, such as temperature sensors, pressure sensors, and flow switches, are themselves potential sources of ignition. They must either limit the circuit energy so that it cannot generate a spark sufficient to ignite in any fault state or isolate it with a sturdy casing.
Drier Filter
It can remove contaminants and impurities existing in the system, and at the same time prevent potential harmful physical impurities from entering the cooling system, avoiding malfunctions of your equipment.
Common Types of Explosion Proof Chillers
Explosion Proof Scroll Chiller
The explosion proof chiller with scroll compressors features a compact structure, stable operation and low noise. It usually has a relatively small single-unit capacity and a high energy efficiency ratio, which is mainly suitable for explosion-proof applications with medium and small cooling capacity requirements.
Explosion Proof Screw Chiller
The features of the chiller with explosion-proof screw compressor are high power, strong durability and adjustable capacity. It is specially designed for large-scale industrial cooling and can meet the continuous and high-intensity cooling requirements of industries such as chemical engineering in explosion-proof environments.
Air Cooled Explosion Proof Chiller
The air cooled explosion proof chiller directly uses ambient air for heat dissipation through the built-in explosion-proof fan and finned condenser. It does not require additional cooling towers or water sources, which is easy to install, but is greatly affected by environmental temperature. It is more suitable for explosion-proof areas with scarce water resources or limited installation space.
Water Cooled Explosion Proof Chiller
The water cooled explosion proof chiller needs to be equipped with an external cooling tower to operate. It uses water as the cooling medium and dissipates heat through the shell and tube condenser. It features high heat exchange efficiency, more stable operation and greater cooling capacity under the same volume, which is mainly suitable for heavy industrial explosion-proof working conditions with stable water sources and high requirements for cooling power and stability.
Features of Explosion Proof Chillers
Special Electrical Design
All components that may generate electric sparks, arcs or high-temperature surfaces are sealed in specially designed flameproof enclosures to ensure that internal faults will not ignite the external environment.
Sturdy and Durable
To adapt to harsh industrial environments, our equipment is usually made of heavy steel or corrosion-resistant materials, with a solid structure and high reliability, making it your ideal choice.
Precise Temperature Control
Our explosion proof chiller is equipped with a high-precision temperature control system, which can provide stable cooling capacity for your project even in flammable and explosive environments.
High-Efficiency Heat Dissipation
According to the design, there are two main types: air-cooled and water-cooled.
Unique Application Fields
Our explosion proof chillers are specially designed for environments where flammable and explosive gases, vapors or dust may exist, such as chemical workshops, oil platforms, paint warehouses, etc.
Advantages of Using Explosion Proof Chillers
Ensure Safety
Our explosion proof chiller seals all electrical components within an explosion-proof enclosure through a special structural design, effectively isolating potential electric sparks inside. This fundamentally prevents the risk of explosion in flammable and explosive harsh industrial environments, ensuring your life and property safety.
Ensure Process Stability
Our equipment can provide continuous and precise temperature control in high-risk environments, avoiding the impact of chiller failure and shutdown or temperature fluctuations on your process, ensuring the continuity of your production process, and improving product consistency and yield.
Meet Compliance Requirements
The sturdy structure and explosion-proof features of the ChillerOne explosion proof chiller enable it to operate reliably in places with hazardous media such as chemical, pharmaceutical, and oil and gas industries. Our equipment has passed the national mandatory certification and meets the requirements of safety production regulations and industry supervision. It is an important part for you to achieve legal and compliant production.
Long-Term Reliability
The durable components and high-standard manufacturing processes adopted by our explosion proof chillers ensure their long service life and low failure rate under harsh working conditions. This high reliability reduces production losses caused by unplanned downtime and avoids risks that may arise from the use of non-explosion-proof equipment.
Ordinary chillers only focus on cooling performance, while the core of explosion proof chillers is to prevent them from becoming ignition sources. All its electrical components have undergone special explosion-proof treatment, so even if electric sparks occur inside, they will not ignite external dangerous gases or dust.
The explosion-proof grade must be determined by experts based on the classification of hazardous areas in your workshop and the types of hazardous substances present. You can provide your hazardous area division map to consult our professional engineers, and we will recommend the most suitable model for you.
No. Our explosion proof chiller is professionally designed on the core refrigeration system to ensure its excellent refrigeration performance and energy efficiency ratio. The explosion-proof design not only ensures absolute safety but also has excellent cooling efficiency.
Sure. Whether it is special antifreeze requirements, inlet and outlet temperatures, or specific explosion-proof grades and installation dimensions, we can provide flexible customized services. Please tell us your specific process requirements, and we will create the most suitable solution for you.
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