NH3/CO2 Cascade Refrigeration System
1. NH3/CO2: The Principle of Cascade Refrigeration System
The NH3/CO2 cascade refrigeration system is ingeniously engineered to incorporate two distinct stages: a high-temperature stage using NH3 as the refrigerant, and a low-temperature stage leveraging CO2. In this system, the evaporation of NH3 at the high-temperature level is strategically utilized to condense the CO2 refrigerant gas expelled from the low-temperature level. A condensation evaporator seamlessly bridges the high and low-temperature stages, doubling as the condenser for the CO2 and the evaporator for the NH3, facilitating a harmonious integration of these stages.
In this sophisticated process, the heat load is expertly transferred to the CO2 refrigerant via the end evaporator. The absorbed heat by CO2 is then efficiently shifted to the high-temperature NH3 refrigerant through the condensing evaporator. Subsequently, the NH3 refrigerant dispels this heat to the environment through the high-temperature condenser, using a cooling medium. As the CO2 condenses in the evaporator, it enters the CO2 reservoir, proceeding to the gas-liquid separator after passing through the dryer filter and throttle valve. Liquid CO2 is pumped to the CO2 evaporator, bypassing any end-cooling devices, and after evaporation, the two-phase CO2 is directed back to the separator. Gaseous CO2 is then compressed and returned to the cycle, ensuring an uninterrupted cascade refrigeration process.
Within the NH3/CO2 cascade refrigeration framework, the high and low-temperature levels are distinctly designed as individual refrigerant systems. The high-temperature NH3 system mirrors conventional refrigeration systems, incorporating essential components like compressors, condensers, liquid storage, separators, and throttling devices. The low-temperature CO2 system uniquely includes a CO2 compressor, condensing evaporator, reservoir, gas-liquid separator, filter dryer, pump, throttling device, evaporator, and expansion vessel, all intricately harmonized for optimal performance.
The The CO2 gas-liquid separator is meticulously engineered to efficiently segregate CO2 gas droplets emanating from the evaporator, safeguarding against compressor wet strokes. It adeptly maintains a stable liquid level during pump operations and stores the returning liquid when the pump halts. When used as a reservoir, it is vital that the separator's volume can accommodate all system CO2 liquid. An auxiliary evaporator is strategically positioned atop the separator to mitigate excessive CO2 pressure post-shutdown. In this cutting-edge NH3/CO2 cascade system, the condensing evaporator plays a dual role as both the NH3 evaporator and the CO2 condenser, facilitating seamless heat absorption and condensation processes.
2. Advantages of the NH3/CO2 Cascade Refrigeration System
(1) Enhanced Safety by Reducing NH3 Risks:
(1.(1)) The NH3/CO2 cascade refrigeration system dramatically minimizes the NH3 refrigerant charge, curtailing it by approximately 90% compared to traditional ammonia systems, enhancing safety.
(1.(2)) NH3 is securely confined to mechanical and equipment rooms, akin to 'the tiger in a cage,' safeguarded by skilled professionals.
(1.(3)) Maximizes NH3's excellent heat transfer capabilities in high-temperature regions to efficiently cool CO2.
(2) Safeguarding Personnel and Property: CO2 is utilized as the refrigerant in high-occupancy areas like operation rooms and warehouses, ensuring a secure environment for personnel and assets.
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| 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 distinguished manufacturer, we at Qingdao Bingyan Refrigeration Equipment Co., Ltd. take pride in offering tailor-made solutions specifically designed to meet your unique requirements. Should you find yourself uncertain about the ideal model for your needs, please do not hesitate to reach out to us. Our team is ready to assist you in identifying the perfect fit.Our esteemed team of professional engineers is dedicated to crafting bespoke solutions that cater to your exact specifications and desires, ensuring optimal performance and satisfaction.
Shandong Binzhou Huiyang Cold Chain Logistics Port
This remarkable project spans an impressive 60,542 square meters, with a total construction area reaching 72,370.31 square meters. It features state-of-the-art production workshops and a vast cold storage area measuring 65,538.50 square meters, designed to provide unparalleled efficiency and capacity.
At Qingdao Bingyan Refrigeration Equipment Co., Ltd., our flagship offerings include: State-of-the-art Condensing Units,High-Efficiency Air Coolers,Cutting-edge Evaporative Condensers,Reliable Freezers,Durable Cold Room Doors,
Premium Cold Storage Panels, For an in-depth exploration of our product line, please click on the product name or image for more details.
Qingdao Bingyan Refrigeration Equipment Co., Ltd. Established in 2011 in the enchanting coastal city of Qingdao, Qingdao Bingyan Refrigeration Equipment Co., Ltd. stands as a leading high-tech enterprise. We specialize in the comprehensive integration of industrial and commercial freezing, advanced cold storage solutions, cutting-edge refrigeration systems, and state-of-the-art refrigeration equipment. Our expertise spans research and development, innovative design, precision manufacturing, and strategic sales.
From the moment of our inception, we have embraced 'science and technology' as our guiding principle, with 'management' serving as our steadfast guarantee. This ensures that we not only meet but exceed market demands and customer expectations. Our mission is to deliver impeccable refrigeration system solutions and unparalleled products and services to our valued clients.
Our company proudly holds over ten national technology patents and is dedicated to the relentless pursuit of developing high-efficiency, energy-saving, and environmentally friendly refrigeration system configurations. Our product line includes ultra-efficient refrigeration units, energy-conserving barrel pumps, and PLC intelligent program control boxes, crafted to perfection.
We excel in the meticulous program design and bespoke equipment customization for various projects, including food quick-freezing storage, advanced food cold storage, ultra-low temperature cold storage, pharmaceutical storage, fruit and vegetable air-conditioning storage, workshop air conditioning, rapid quick-freezing, freeze-drying, and sophisticated thawing devices.
At BINGYAN, we are passionately dedicated to delivering scientifically crafted and meticulously planned refrigeration system solutions. Our commitment extends beyond just quality products; we provide exceptional engineering expertise and unparalleled after-sales services to ensure absolute customer satisfaction.
Bingyan offers an all-encompassing suite of services that include expert sales consultations, innovative design solutions, meticulous construction, and comprehensive after-sales support.
1. Our dedicated sales department excels at accurately identifying and understanding your unique needs, ensuring your intentions are clearly communicated and maintaining seamless and open lines of communication.
2. Our design department is equipped with the expertise to offer you professional, thoughtful engineering recommendations. We meticulously craft reliable and stable refrigeration plans tailored specifically to your precise requirements.
3. Our engineering department approaches every construction phase with intense precision and care, executing each task with a commitment to excellence to deliver projects of the highest quality.
4. Our vigilant after-sales department is perpetually prepared and on alert, ensuring the continued success and satisfaction of our esteemed customers.
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.
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