Revolutionary NH3/CO2 Cascade Refrigeration System
1. The Ingenious Principle of NH3/CO2 Cascade Refrigeration
The NH3/CO2 cascade refrigeration system ingeniously integrates two distinct stages: the high-temperature stage employing NH3 as its refrigerant and the low-temperature stage utilizing CO2. This innovative system operates by evaporating the NH3 refrigerant at the high-temperature stage, which subsequently condenses the CO2 refrigerant gas emitted from the low-temperature stage. The two stages are seamlessly connected through a condensation evaporator, serving as both the condenser for CO2 and the evaporator for NH3, ensuring efficient heat transfer and cooling.
The remarkable heat transfer mechanism begins as the heat load is absorbed by the CO2 refrigerant via the end evaporator. This absorbed heat is then transferred to the high-temperature NH3 refrigerant through the condensing evaporator. The NH3 refrigerant, now carrying the heat, efficiently releases it to the environment through the high-temperature condenser. The process continues as the condensed CO2 is directed into the CO2 reservoir, passing through the dryer filter and throttle valve, and is circulated back to the evaporator by the CO2 circulation pump. The two-phase CO2 returns to the gas-liquid separator, completing the cycle as gaseous CO2 is compressed back into the condensing evaporator, achieving a continuous and effective cascade refrigeration cycle.
Within the NH3/CO2 cascade refrigeration system, each temperature level operates as a distinct refrigeration system utilizing a single refrigerant. The high-temperature NH3 refrigeration system mirrors traditional systems and includes a compressor, condenser, liquid storage, gas-liquid separator, and throttling device. The low-temperature CO2 system, on the other hand, encompasses a CO2 compressor, condensing evaporator, reservoir, gas-liquid separator, filter dryer, pump, throttling device, evaporator, and expansion vessel, working in harmony to deliver superior cooling efficiency.
The The CO2 gas-liquid separator plays a crucial role in the CO2 compression refrigeration system by effectively isolating CO2 gas droplets from the evaporator, preventing compressor wet strokes, and maintaining a stable liquid level during pump operation. It also serves as a reservoir for returning liquid when the pump ceases to operate. To ensure optimal performance, if utilized as a reservoir while inactive, its volume should accommodate all CO2 liquid within the system. Moreover, an auxiliary evaporator should be strategically placed atop the separator to avert excessive CO2 pressure after shutdown. In this sophisticated NH3/CO2 cascade system, the condensing evaporator uniquely serves dual functions, acting as the NH3 side evaporator and CO2 side condenser, with compound liquids evaporating to absorb heat, while CO2 gas condenses into liquid within the shell, epitomizing efficient energy transfer.
2. Outstanding Advantages of the NH3/CO2 Cascade Refrigeration System
(1) Enhanced Safety with Reduced NH3 Risk Factors:
(1.(1)) The NH3/CO2 system significantly diminishes the condensing pressure of NH3 refrigerant, using only about 1/10 of the traditional ammonia system charge, thus enhancing safety.
(1.(2)) NH3 is confined to the machine and equipment rooms, akin to a 'tiger in a cage,' under the vigilant supervision of professional experts, ensuring controlled operation.
(1.(3)) The system fully exploits NH3's excellent heat transfer properties in the high-temperature region for the efficient cooling of CO2.
(2) CO2 serves as a medium within personnel-intensive areas, such as single-freezing units and warehouses, ensuring the utmost safety for both personnel and property.
0c8d29fb
| 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. is poised to tailor-make products to meet your specific needs. If you're unsure about the model that best suits your requirements, don't hesitate to reach out to us with your queries.Our team of skilled and knowledgeable engineers is ready to craft a bespoke solution just for you, ensuring that your needs are met with precision and expertise.
Shandong Binzhou Huiyang Cold Chain Logistics Port
This remarkable project spans a vast area of 60,542 square meters, with an impressive total construction area of 72,370.31 square meters. It encompasses a state-of-the-art production workshop as well as an expansive cold storage area of 65,538.50 square meters, designed to optimize efficiency and performance.
At Qingdao Bingyan Refrigeration Equipment Co., Ltd., we proudly present a diverse range of premium products, centered on innovative refrigeration solutions. Our flagship offerings include: High-Efficiency Condensing Units,State-of-the-Art Air Coolers,Advanced Evaporative Condensers,Reliable Freezers,Precision-Engineered Cold Room Doors,
Durable Cold Storage Panels, For a deeper insight into our full product line, we invite you to click on the specific product name or image. Discover the future of refrigeration with us.
Qingdao Bingyan Refrigeration Equipment Co., Ltd. Established in the year 2011 and nestled in the picturesque coastal city of Qingdao, Qingdao Bingyan Refrigeration Equipment Co., Ltd. stands as a beacon of innovation and excellence. We are an esteemed high-tech enterprise, seamlessly integrating the realms of industrial and commercial freezing, cold storage solutions, advanced refrigeration systems, and cutting-edge equipment design. Our expertise spans the entire lifecycle from research and development to impeccable manufacturing and sales.
From our very inception, we have passionately embraced the pinnacle of 'science and technology' as our guiding light. With 'management' as our steadfast assurance, we strive to cater to market demands and deliver exceptional customer service. Our mission is to furnish our clients with perfect refrigeration system solutions, optimal products, and unparalleled services.
Boasting over ten national technology patents, our company is perpetually devoted to pioneering research and development. Our focus is on crafting high-efficiency, energy-saving, and environmentally conscious refrigeration system configurations. Our offerings include high-efficiency refrigeration units, energy-saving barrel pumps, and sophisticated PLC intelligent program control boxes, among others.
We specialize in the avant-garde program design and bespoke equipment customization for a diverse range of projects. These projects encompass food quick-freezing storage, food cold storage, ultra-low temperature cold storage, medicine storage, fruit and vegetable air-conditioning storage, workshop air conditioning, and advanced quick-freezing and freeze-drying solutions, as well as state-of-the-art thawing devices.
BINGYAN IS DEDICATED TO DELIVERING NOT ONLY SCIENTIFICALLY SOUND AND REASONABLE REFRIGERATION SYSTEM SOLUTIONS BUT ALSO SUPERIOR ENGINEERING AND EXEMPLARY AFTER-SALES SERVICES TO OUR ESTEEMED CLIENTS.
Bingyan offers an all-encompassing suite of services, seamlessly integrating sales, innovative design, meticulous construction, and dedicated after-sales support.
1. Our sales department meticulously comprehends and captures the unique needs of our clients, ensuring their intentions are conveyed with precision and maintaining seamless and effective communication throughout the entire process.
2. The design department is committed to delivering expert and strategic engineering advice, crafting customized, reliable, and stable refrigeration solutions that are precisely tailored to meet the specific needs of our clients.
3. Our engineering department approaches each construction phase with precision and dedication, completing every task with meticulous attention to detail, striving for excellence to deliver projects of unmatched quality.
4. The after-sales department stands ever vigilant and prepared, ensuring customer success with unwavering support and readiness at all times.
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}