NH3/CO2 Cascade Refrigeration System - A Perfect Harmony of Innovation and Efficiency
1. The Ingenious Principle Behind the NH3/CO2 Cascade Refrigeration System
The NH3/CO2 cascade refrigeration system is a marvel of engineering, ingeniously divided into two stages: high and low temperature. In this sophisticated setup, ammonia (NH3) serves as the refrigerant for the high-temperature stage, while carbon dioxide (CO2) takes on the role in the low-temperature stage. The brilliance lies in the evaporation process of NH3, which efficiently condenses the CO2 refrigerant gas from the low-temperature level. A pivotal condensation evaporator seamlessly connects these stages, functioning both as a condenser for the low temperature and an evaporator for the high temperature.
In this innovative system, the end evaporator facilitates heat transfer to the CO2 refrigerant, which then passes it onto the high-temperature NH3 refrigerant via the condensing evaporator. The NH3 refrigerant, now high in temperature, further dissipates this heat into the environment through a high-temperature condenser and cooling medium. As CO2 condenses in the evaporator, it enters the CO2 reservoir, moving through a dryer filter and throttle valve to reach the gas-liquid separator. Liquid CO2 circulates to the evaporator via a pump, initializing a cycle without an end cooling device, such as a standalone freezer or chiller. After passing through the evaporator, two-phase CO2 returns to its separator, where gaseous CO2 is compressed back into the evaporator, perpetuating this efficient cascade refrigeration cycle.
Within the NH3/CO2 cascade refrigeration system, distinct high and low temperature levels operate independently as single-refrigerant systems. The high-temperature NH3 system mirrors traditional refrigeration setups, featuring essential components like compressors, condensers, liquid storage, and more. Meanwhile, the low-temperature CO2 system comprises additional elements such as the condensing evaporator, reservoir, filter dryer, pump, throttling device, evaporator, and expansion vessel, establishing a robust and reliable refrigeration framework.
The The CO2 gas-liquid separator is a critical component in the CO2 compression refrigeration system, expertly designed to separate CO2 gas droplets from the evaporator, thereby preventing compressor wet strokes. It maintains a stable liquid level during pump operation and stores liquid return from end equipment and pipelines when the pump halts. When used as a CO2 reservoir, its volume ensures it can accommodate all system CO2. An auxiliary evaporator atop the separator prevents excess CO2 pressure post-shutdown. In this cascade system, the condensing evaporator is dual-functional, acting as both the NH3-side evaporator and CO2-side condenser, where the compound liquid evaporates to absorb heat, efficiently condensing CO2 gas into a liquid.
2. Exceptional Advantages of the NH3/CO2 Cascade Refrigeration System
(1) Enhanced Safety with Reduced NH3 Risks:
(1.(1)) The NH3/CO2 cascade system dramatically lowers NH3 refrigerant charge condensing pressure to approximately 1/10th of conventional ammonia systems;
(1.(2)) NH3 use is confined to machine and equipment rooms, akin to a 'tiger in a cage,' under the vigilance of skilled professionals;
(1.(3)) Maximizes NH3's superior heat transfer capabilities to efficiently cool CO2.
(2) CO2's Role in Safety: CO2's integration into crowded operation rooms and warehouses ensures both personnel and property safety.
fb985999
| Compressor type |
Piston, screw |
| Condensor |
enough condenser heat exchanger surface |
| Fan type |
Axial fan:High degree of protection, large Air flow, low noise |
| Unit kinds |
Open type, box type, side discharge type |
| Cooled type |
Air cooled |
| Refrigeration type |
R717;R507;R22;CO2 |
| Copper tube connector |
fitting reducer |
| Place to assemble |
Indoor/out door(concrete construction building/steel
construction building). |
| Voltage |
220V/50HZ, 220V/60HZ, 380V/50HZ etc |
| Controller |
Automatic electric controller, PLC |
| Warranty |
1 Year |
| Case material |
The galvanized sheet is coated with plastic powdered painted |
| Quality Assurance |
2.6Mpa leak-proof stress test |
| Package |
Plywood box and pallet |
As a leading manufacturer, we specialize in tailoring products precisely to your needs. Not sure which model fits you best? Simply send us a message, and our dedicated team will guide you to the perfect solution.Our team of expert engineers will craft a bespoke solution that perfectly aligns with your unique requirements.
Showcasing: Shandong Binzhou Huiyang Cold Chain Logistics Port
This impressive project spans an expansive area of 60,542 square meters, featuring a comprehensive total construction area of 72,370.31 square meters. Included within this vast space are the production workshop and a state-of-the-art cold storage area, together covering a remarkable 65,538.50 square meters.
At Qingdao Bingyan Refrigeration Equipment Co., Ltd., we take immense pride in offering an extensive array of superior-quality products: Cutting-edge Condensing Units,Innovative Air Coolers,Advanced Evaporative Condensers,High-Performance Freezers,Durable Cold Room Doors,
Efficient Cold Storage Panels, For a comprehensive overview and to discover more about our exceptional products, feel free to click on the product names or images provided.
Qingdao Bingyan Refrigeration Equipment Co., Ltd. Founded in 2011, Qingdao Bingyan Refrigeration Equipment Co., Ltd. is nestled in the picturesque coastal city of Qingdao. Our company is a high-tech enterprise that seamlessly integrates the design, research and development, manufacturing, and sales of industrial and commercial freezing and cold storage solutions, as well as comprehensive refrigeration systems and equipment.
From our inception, we have been guided by the principles of 'science and technology,' underpinned by a robust 'management' framework, ensuring we meet market demands with exceptional customer service. Our ultimate aim is to deliver flawless refrigeration system solutions, superior products, and outstanding services to our valued clients.
With a proud portfolio of over a dozen national technology patents, our company is relentlessly committed to spearheading the development of high-efficiency, energy-saving, and environmentally friendly refrigeration systems. Our product range includes efficient refrigeration units, energy-conserving barrel pumps, and state-of-the-art PLC intelligent program control boxes, among others.
We excel in program design and equipment customization for a variety of projects, including food quick-freezing storage, food cold storage, ultra-low temperature cold storage, medical storage, fruit and vegetable air-conditioning storage, workshop air conditioning, quick-freezing and freeze-drying solutions, and thawing devices.
Qingdao Bingyan Refrigeration Equipment Co., Ltd. is unwavering in its dedication to presenting customers with scientifically sound and meticulously crafted refrigeration system solutions. Our commitment extends to delivering unparalleled engineering prowess and exceptional post-sales service, ensuring a harmonious blend of quality and reliability.
Bingyan offers an all-encompassing suite of services, seamlessly integrating sales, design, construction, and after-sales support, to fulfill every refrigeration requirement with finesse.
1. Within our sales department, a keen focus is placed on thoroughly understanding and capturing the essence of customer needs. By effectively interpreting and conveying customer intentions, we ensure seamless and ongoing communication, fostering solid and enduring relationships.
2. Our design department is adept at presenting clients with insightful and expertly crafted engineering recommendations. We meticulously tailor reliable and robust refrigeration plans that align perfectly with individual customer requirements, promising optimal performance and satisfaction.
3. The engineering department approaches each construction endeavor with precision and dedication, meticulously ensuring that every task is executed to perfection. Our pursuit of excellence aims to deliver projects of the highest caliber, setting benchmarks in quality.
4. Our after-sales department remains poised and ever-ready to leap into action, ensuring the continuous success and satisfaction of our valued customers. With unwavering support, we uphold an enduring commitment to excellence.
Q:What's your advantage?
A: Through our professional designers according to your needs for your professional design, and select the appropriate refrigeration equipment. Ultimately, we achieve the purpose of high cooling efficiency, energy saving and power saving.
Q:How strong is your company?
A:Our company was established in 2011 and has a professional cold storage design team, installation team, and experienced after-sales maintenance personnel. We can provide a complete set of cold storage design, installation guidance, and after-sales maintenance services.
Q:Where are you?Can I visit you?
A: Sure,welcome to you visit our factory at any time.
Q:How about the delivery time?
A: Within 60 days after we confirm you requirement.
Q:what kind of payment does your company support?
A:Usually, a 30% down payment is made through T/T after confirming the Proforma Invoice (PI), and the balance will be paid after inspection and before shipment. We accept telegraphic transfer and sight letter of credit.
Q: When can I get the price?
A: Usually we quote within 24 hours after we get your inquiry.
Q: Which shipping way can you provide?
A: We can provide shipping by sea, by air and by express.
Audited Supplier 
){kind=link}