NH3/CO2 Cascade Refrigeration System
1. Principle of NH3/CO2 Cascade Refrigeration System
The innovative NH3/CO2 cascade refrigeration system is a masterful orchestration of two distinct stages: high temperature and low temperature. In this sophisticated setup, NH3 serves as the refrigerant at the high temperature stage, while CO2 takes the helm at the low temperature stage. The system ingeniously leverages the evaporation of NH3 at the high temperature level to condense the CO2 emitted from the low temperature level. The interconnection of these stages is achieved through a condensation evaporator, serving dually as the condenser for the CO2 low level and the evaporator for the NH3 high level, ensuring optimal temperature management.
In this seamless dance of thermal exchange, the heat load is adeptly transferred to the CO2 refrigerant via the end evaporator. The absorbed heat by CO2 is then conveyed to the high-temperature NH3 through the condensing evaporator. NH3 subsequently releases the heat to the environment through a high-temperature condenser, assisted by a cooling medium. Post-condensation, CO2 enters the reservoir and continues its journey through a dryer filter and throttle valve into the CO2 gas-liquid separator. The CO2 circulatory pump propels liquid CO2 to the evaporator, where, post-evaporation, two-phase CO2 returns to the separator. The gaseous CO2 is then drawn by a compressor, initiating its compression in the condensing evaporator. This meticulous cycle ensures a continuous and efficient cascade refrigeration process.
Within this NH3/CO2 cascade refrigeration system, the high and low temperature levels are independent yet harmonious systems, each utilizing a single refrigerant. The equipment composition mirrors this duality: The high-temperature NH3 system aligns with conventional refrigeration systems, comprising a refrigeration compressor, condenser, liquid storage, gas-liquid separator, and throttling device. The low temperature CO2 system, in turn, features a specific configuration including a CO2 compressor, condensing evaporator, reservoir, gas-liquid separator, filter dryer, pump, throttling device, evaporator, and expansion vessel, all designed for maximum efficiency and reliability.
The The CO2 gas-liquid separator plays a crucial role in the CO2 compression refrigeration system, deftly separating CO2 gas droplets from the evaporator to prevent compressor wet stroke, ensure stable liquid levels during pump operation, and manage liquid return when the pump ceases. If utilized as a CO2 reservoir during non-operation, its capacity must accommodate all system CO2 liquid. The inclusion of an auxiliary evaporator at the gas-liquid separator's apex effectively mitigates excessive CO2 pressure post-shutdown. Furthermore, in the NH3/CO2 cascade system, the condensing evaporator doubles as both the NH3 side evaporator and CO2 side condenser, facilitating heat absorption and CO2 gas-to-liquid transition in an integrated shell-and-tube design.
2. Advantages of the NH3/CO2 Cascade Refrigeration System
(1) Enhanced Safety with Reduced NH3 Risks:
(1.(1))The NH3/CO2 cascade system significantly diminishes NH3 condensing pressure, reducing it to a mere tenth of the traditional ammonia system's charge, enhancing safety and efficiency.
(1.(2))NH3 is confined within the machine and equipment rooms, akin to a 'tiger in a cage,' expertly safeguarded by skilled personnel ensuring operational safety.
(1.(3))Maximizing NH3's superior heat transfer properties in the high-temperature zone to expertly cool CO2, this system offers enhanced thermal management.
(2) Utilizing CO2 ensures a safe environment in personnel-dense operational areas such as single-freezing machines and storage warehouses, prioritizing the safety of both personnel and property.
63cf4cbf
| 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, Qingdao Bingyan Refrigeration Equipment Co., Ltd. specializes in tailoring high-quality products to meet your specific needs. If you're uncertain about the ideal model for your project, feel free to reach out to us. Our team is ready to assist you in selecting the perfect solution.Our team of highly skilled engineers is dedicated to crafting bespoke solutions tailored to your unique requirements, ensuring optimal efficiency and performance for your CO2 Condensing Unit for Efficient Cold Storage and Processing.
Shandong Binzhou Huiyang Cold Chain Logistics Port
Spanning an expansive 60,542 square meters, this project offers a remarkable total construction area of 72,370.31 square meters. Within its bounds lie state-of-the-art production workshops and a dedicated cold storage area measuring 65,538.50 square meters, specifically designed for efficient CO2 refrigeration and optimized cold storage solutions.
Qingdao Bingyan Refrigeration Equipment Co., Ltd. proudly offers an exceptional range of high-performance refrigeration solutions, including: State-of-the-Art Condensing Units,Innovative Air Coolers,Advanced Evaporative Condensers,Versatile Freezers,Durable Cold Room Doors,
High-Quality Cold Storage Panels, Eager to explore more? Click on any product name or image to unveil detailed insights.
Qingdao Bingyan Refrigeration Equipment Co., Ltd. Qingdao Bingyan Refrigeration Equipment Co., Ltd., established in 2011, is strategically located in the picturesque coastal city of Qingdao. As a distinguished high-tech company, we specialize in the comprehensive integration of industrial and commercial freezing, cold storage, and advanced refrigeration systems. Our expertise spans the entire spectrum from research and development, innovative design, and robust manufacturing to dedicated sales and superior service delivery.
Since its founding, our company has embraced the power of 'science and technology' as our guiding beacon, coupled with 'management' as a steadfast assurance. Our unwavering mission is to cater seamlessly to market demands and deliver first-class customer service, ultimately providing flawless refrigeration system solutions, top-tier products, and exemplary services to our valued clientele.
With an impressive portfolio of over ten national technology patents, our company remains at the forefront of research and innovation. We are committed to developing high-efficiency, energy-saving, and environmentally friendly refrigeration system configurations. Our offerings include state-of-the-art refrigeration units, energy-efficient barrel pumps, and advanced PLC intelligent program control boxes, all designed to set new industry standards.
We excel in the tailored program design and equipment customization for a diverse range of projects. These include food quick-freezing storage, comprehensive cold storage solutions, ultra-low temperature cold storage, meticulous medicine storage, fruit and vegetable air-conditioning storage, efficient workshop air conditioning, as well as sophisticated quick-freezing and freeze-drying systems, and advanced thawing devices.
BINGYAN IS PASSIONATELY DEDICATED TO DELIVERING CUSTOMERS CUTTING-EDGE AND OPTIMALLY DESIGNED REFRIGERATION SYSTEM SOLUTIONS, COUPLED WITH EXCEPTIONAL ENGINEERING AND TOP-NOTCH AFTER-SALES SERVICES.
Bingyan offers an all-encompassing suite of services that spans sales, expert design, meticulous construction, and reliable after-sales support.
1. Our sales department deeply understands and precisely interprets customer requirements, effectively communicating customer visions while fostering a strong client partnership.
2. The design department delivers expert, tailored engineering advice, crafting refrigeration plans that are both dependable and customized to meet unique customer demands.
3. With a meticulous approach to every task, the engineering department ensures excellence in each phase of construction, delivering high-caliber projects that exceed expectations.
4. Our after-sales department stands ever-ready, ensuring unwavering support and success for every valued customer.
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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