NH3/CO2 Cascade Refrigeration System
1. NH3/CO2 - The Innovative Principle of Cascade Refrigeration Systems
The NH3/CO2 cascade refrigeration system ingeniously fuses two distinct phases: a high-temperature stage utilizing NH3, and a low-temperature stage employing CO2. In this groundbreaking setup, NH3's evaporation in the high-temperature system effectively condenses the CO2 gas from the low-temperature level. A sophisticated condensation evaporator acts as a bridge, serving both as the condenser for the low-temperature CO2 and the evaporator for the high-temperature NH3. This dual functionality ensures seamless and efficient energy transfer between stages.
Experience superior thermal management as the CO2 refrigerant absorbs heat through the end evaporator. This absorbed heat is flawlessly transferred to the high-temperature NH3 refrigerant via the condensing evaporator. The NH3 efficiently releases this heat to the environment through a high-temperature condenser, facilitated by a cooling medium. Post-condensation, CO2 enters a storage reservoir and is meticulously filtered and throttled before entering the gas-liquid separator. Liquid CO2 is propelled to the evaporator, and after evaporation, the cycle continues with CO2 gas returning to the separator, ensuring relentless refrigeration performance.
The dual-layered NH3/CO2 cascade system distinguishes itself by compartmentalizing the cooling process. The high-temperature NH3 system mirrors conventional setups, boasting components like compressors, condensers, and separators. Meanwhile, the low-temperature CO2 system is equipped with advanced elements including compressors, condensing evaporators, and expansion vessels, reflecting state-of-the-art refrigeration technology.
The The CO2 gas-liquid separator is a critical component, efficiently segregating CO2 droplets from evaporator output to prevent compressor wet strokes. It ensures liquid stability during operation and accommodates system liquid during shutdowns. Its design allows it to serve as a CO2 reservoir, with the capacity to hold all the system's CO2 liquid. An auxiliary evaporator prevents excessive CO2 pressure post-shutdown. Within the NH3/CO2 cascade, the condensing evaporator duals as both NH3 evaporator and CO2 condenser, optimizing heat transfer and phase change.
2. Unveiling the Advantages of the NH3/CO2 Cascade Refrigeration System
(1) Enhanced Safety with Reduced NH3 Risk Factors:
(1.(1))The NH3/CO2 cascade system significantly lowers NH3 condensing pressures, utilizing only about 1/10 of the ammonia compared to traditional systems, thereby diminishing potential hazards.
(1.(2))NH3 is securely confined to machinery and equipment rooms, functioning like a 'tiger in a cage', under the vigilant supervision of experts.
(1.(3))Capitalizes on NH3's excellent heat transfer capabilities in high-temperature regions to efficiently cool CO2.
(2) CO2 - The Safer Choice for High-Occupancy Areas: With CO2 as the medium, safety is prioritized in personnel-dense areas like operating rooms and storage spaces, safeguarding both human and material assets.
f53f7c80
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 premier manufacturer, Qingdao Bingyan Refrigeration Equipment Co., Ltd. is dedicated to tailoring our cutting-edge products specifically to meet your unique demands. Unsure of the ideal model for your needs? Simply reach out to us, and our team will guide you towards the perfect choice.Our team of highly skilled engineers is ready to craft a bespoke solution tailored exclusively for you, ensuring that our Advanced Refrigeration Unit with Explosion-Proof Features for Safety meets all your specific requirements and preferences.
Shandong Binzhou Huiyang Cold Chain Logistics Port
Encompassing an impressive 60,542 square meters, this groundbreaking project boasts a total construction area of 72,370.31 square meters. It features state-of-the-art production workshops and a dedicated cold storage area spanning 65,538.50 square meters, designed to enhance efficiency and capacity.
At Qingdao Bingyan Refrigeration Equipment Co., Ltd., we pride ourselves on offering an exceptional array of high-quality products, including: - Advanced and Efficient Condensing Units,- Superior Air Coolers,- Innovative Evaporative Condensers,- Reliable Freezers,- Durable Cold Room Doors,
- High-Quality Cold Storage Panels, For a deeper insight into our extensive offerings, simply click on the product name or image to discover more.

Qingdao Bingyan Refrigeration Equipment Co., Ltd. Founded in 2011, Qingdao Bingyan Refrigeration Equipment Co., Ltd. is beautifully nestled in the scenic coastal city of Qingdao. As an innovative high-tech enterprise, we specialize in the comprehensive realm of industrial and commercial freezing, cold storage, and sophisticated refrigeration systems. With expertise spanning research and development, design, manufacturing, and sales, we are your one-stop solution for advanced refrigeration needs.
Since our inception, we have passionately embraced 'science and technology' as our guiding beacon and 'management' as our steadfast assurance. Our relentless pursuit is to exceed market expectations and deliver unparalleled customer service. Our mission is to provide customers with flawless refrigeration system solutions, products, and services that are second to none.
Proudly holding over ten national technology patents, we are dedicated to the relentless research and development of highly efficient, energy-saving, and environmentally conscious refrigeration system configurations. Our offerings include advanced high-efficiency refrigeration units, energy-saving barrel pumps, and state-of-the-art PLC intelligent program control boxes, designed to elevate your refrigeration experience.
Our expertise shines in the program design and bespoke equipment customization for a myriad of projects, including food quick-freezing storage, food cold storage, ultra-low temperature cold storage, pharmaceutical storage, fruit and vegetable air-conditioning storage, workshop air conditioning, quick-freezing and freeze-drying, and thawing devices. Whatever your cooling needs, we are poised to deliver exceptional solutions tailored to your specific requirements.
BINGYAN DEDICATES ITSELF TO DELIVERING CUTTING-EDGE, SCIENTIFICALLY-BACKED REFRIGERATION SYSTEM SOLUTIONS. WE PROVIDE TOP-NOTCH ENGINEERING AND AFTER-SALES SUPPORT TO ENSURE SUPERIOR CUSTOMER SATISFACTION.
Bingyan offers an all-encompassing suite of services, including astute sales, innovative design, meticulous construction, and dedicated after-sales support.
1. Our sales department excels at precisely identifying and understanding customer needs, efficiently conveying these insights, and maintaining seamless communication with clients to ensure total alignment and satisfaction.
2. Our proficient design department delivers expert, tailored engineering recommendations, crafting reliable and stable refrigeration plans that are perfectly aligned with individual customer requirements.
3. Our engineering department approaches every construction phase with utmost seriousness and precision, relentlessly pursuing excellence to deliver exemplary, high-quality projects.
4. Our responsive after-sales department stands ready and vigilant, committed to ensuring our customers' continued 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.