NH3/CO2 Cascade Refrigeration System
1. NH3/CO2: The Principle of Cascade Refrigeration System
The NH3/CO2 cascade refrigeration system is ingeniously crafted with two distinct segments: the high temperature stage and the low temperature stage. Deploying NH3 as the refrigerant for the high temperature stage and CO2 for the low, it creates a seamless cooling synergy. The evaporative action of NH3 at the high temperature level ingeniously condenses the CO2 refrigerant coming from the low temperature level, achieving an efficient energy exchange. A dual-purpose condensation evaporator harmoniously connects these systems, functioning both as the condenser for the low temperature and the evaporator for the high temperature stage.
Energy transfer is a marvel in this system: the heat load is skillfully channeled to the CO2 refrigerant via the end evaporator. As CO2 absorbs heat, it transfers it to the high-temperature NH3 refrigerant through the condensing evaporator. The NH3, in turn, releases this heat to the environment via the high-temperature condenser and a cooling medium. Post-condensation, CO2 enters the reservoir and makes its way to the gas-liquid separator through a dryer filter and throttle valve, ensuring purity and precision. The liquid CO2, moving through the circulation pump, reaches the evaporator. Post-evaporation, the two-phase CO2 finds its way back to the separator, while gaseous CO2 is expertly re-compressed into the condensing evaporator, perpetuating a flawless cycle.
In the NH3/CO2 cascade refrigeration system, each temperature level operates independently with a singular refrigerant, offering a tailored equipment composition. The high-temperature NH3 refrigeration system mirrors conventional setups, embracing components like the refrigeration compressor, condenser, liquid storage, gas-liquid separator, and throttling device. Meanwhile, the low temperature CO2 refrigeration system complements with its own CO2 compressor, condensing evaporator, reservoir, gas-liquid separator, filter dryer, pump, throttling device, evaporator, and expansion vessel, creating a balanced and efficient refrigeration ecosystem.
The The CO2 gas-liquid separator stands as a sentinel, effectively separating CO2 gas droplets post-evaporation in the CO2 compression refrigeration system. This diligent device prevents compressor wet strokes, maintains a stable liquid level during pump operation, and efficiently manages liquid returns when the pump ceases. When inactive, its reservoir function ensures ample volume to accommodate all system CO2 liquid. Additionally, an auxiliary evaporator at the separator's apex safeguards against excessive CO2 pressure post-shutdown. Within the NH3/CO2 cascade system, the condensing evaporator plays dual roles: an NH3-side evaporator and a CO2-side condenser, adeptly facilitating compound liquid evaporation and carbon dioxide gas liquefaction.
2. Advantages of NH3/CO2 Cascade Refrigeration System
(1) Reduced NH3 Unsafe Factors:
(1.(1)) The NH3/CO2 cascade system dramatically minimizes the condensing pressure of the NH3 refrigerant to merely 1/10 of that in traditional ammonia systems, revolutionizing safety and efficiency.
(1.(2)) NH3 confinement to the machinery and equipment rooms ensures maximum safety, akin to a 'tiger' securely caged and monitored by skilled professionals.
(1.(3)) The high-temperature region optimally utilizes NH3's superior heat transfer capabilities, facilitating efficient cooling of CO2.
(2) CO2 integration into high-traffic areas, such as operational rooms or warehouses, guarantees the utmost safety for personnel and property.
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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 dedicated manufacturer, Qingdao Bingyan Refrigeration Equipment Co., Ltd. offers tailored solutions to meet your specific needs. If you're uncertain about which model best suits your requirements, feel free to reach out, and our expert team will assist you in making the ideal choice.Our team of seasoned professional engineers is ready to craft a bespoke solution designed specifically for you, ensuring that your requirements are met with precision and expertise.
Experience the efficiency and innovation at the Shandong Binzhou Huiyang Cold Chain Logistics Port.
This impressive project spans a vast area of 60,542 square meters, with a total construction space of an astounding 72,370.31 square meters. It includes a state-of-the-art production workshop and a cold storage area covering 65,538.50 square meters, designed to meet all your logistical needs with excellence.
The cornerstone of our offerings includes: Advanced Condensing Units,Efficient Air Coolers,Innovative Evaporative Condensers,High-Performance Freezers,Robust Cold Room Doors,
Durable Cold Storage Panels, For more information and a deeper dive into our product lineup, simply click on the product name or image.
Qingdao Bingyan Refrigeration Equipment Co., Ltd. Established in 2011 in the picturesque coastal city of Qingdao, Qingdao Bingyan Refrigeration Equipment Co., Ltd. stands as a beacon of innovation, merging industrial and commercial freezing solutions with cutting-edge cold storage technology. We excel in the research, design, manufacturing, and sales of state-of-the-art refrigeration systems and equipment, marking us as a leader in the high-tech industry.
Since our founding, we have embraced the guiding principle of leveraging 'science and technology' while ensuring 'management' is our cornerstone. We are committed to meeting the ever-evolving market demands by delivering exceptional customer service and providing comprehensive refrigeration system solutions, products, and services tailored to our clients' unique needs.
Our company is proud to hold over ten national technology patents, consistently dedicating ourselves to the research and development of high-efficiency, energy-saving, and eco-friendly refrigeration system configurations. Our innovations include cutting-edge refrigeration units, energy-efficient barrel pumps, and advanced PLC intelligent program control boxes, exemplifying our dedication to technological excellence.
We specialize in customized program design and equipment solutions for diverse projects, including food quick-freezing storage, cold storage for perishable goods, ultra-low temperature facilities, pharmaceutical storage, air-conditioned storage for fruits and vegetables, industrial air conditioning, as well as quick-freezing, freeze-drying, and thawing devices. Our tailored solutions ensure optimal performance and reliability.
BINGYAN IS DEDICATED TO DELIVERING CUTTING-EDGE, SCIENTIFIC, AND WELL-REASONED REFRIGERATION SYSTEM SOLUTIONS. WE ALSO OFFER SUPERIOR ENGINEERING SUPPORT AND EXEMPLARY AFTER-SALES SERVICES THAT SPEAK VOLUMES ABOUT OUR COMMITMENT TO QUALITY.
Bingyan is your comprehensive partner in refrigeration, offering a full suite of services, from insightful sales guidance and innovative design solutions to meticulous construction and responsive after-sales support.
1. Our sales department excels in precisely understanding and capturing customer requirements. We ensure that customer intentions are communicated with clarity and maintain seamless, constant communication to foster trust and satisfaction.
2. The design department provides expert advice with professionalism—crafting reliable, robust refrigeration plans tailored precisely to meet the unique needs of our clients.
3. Our engineering department meticulously oversees every construction phase, demonstrating an unwavering commitment to excellence. We aim to deliver high-caliber projects that stand the test of time.
4. Standing by at all times, our after-sales department is your reliable ally, poised to ensure your enduring success and satisfaction.
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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