NH3/CO2 Cascade Refrigeration System: Cutting-edge Technology in Refrigeration
1. The Principle of NH3/CO2 Cascade Refrigeration System: Ingenious Design for Optimal Performance
The NH3/CO2 cascade refrigeration system is an innovative two-tiered approach, consisting of a high temperature stage utilizing NH3 as the refrigerant, and a low temperature stage employing CO2 as the refrigerant. In this sophisticated system, the evaporation of NH3 in the high temperature stage effectively condenses CO2 gas discharged from the low temperature stage. These two stages are intricately connected by a condensation evaporator, serving as both the condenser for the low temperature stage and the evaporator for the high temperature stage, ensuring seamless operation and energy efficiency.
The heat load is expertly transferred to the CO2 refrigerant via the end evaporator. CO2 absorbs the heat, which is then transferred to the high-temperature NH3 refrigerant through the condensing evaporator. The high-temperature NH3 refrigerant subsequently disperses this heat to the environment via the high-temperature condenser and cooling medium. The condensed CO2 moves into the CO2 reservoir and then proceeds through the dryer filter and throttle valve to the CO2 gas-liquid separator. Driven by the CO2 circulation pump, the liquid CO2 reaches the CO2 evaporator. Post-evaporation, the CO2 transitions back into a gas-liquid separator. The gaseous CO2 is drawn by the compressor and compressed into the condensing evaporator. This dynamic cycle repeats to complete an efficient cascade refrigeration cycle, ensuring optimal cooling performance.
In the NH3/CO2 cascade refrigeration system, the high and low temperature stages are distinct refrigeration circuits, each utilizing a single refrigerant. The high-temperature NH3 refrigeration system mirrors conventional systems and includes not only a refrigeration compressor but also a condenser, liquid storage, gas-liquid separator, and throttling device. Meanwhile, the low-temperature CO2 refrigeration system comprises a CO2 compressor, condensing evaporator, reservoir, gas-liquid separator, filter dryer, pump, throttling device, evaporator, and expansion vessel. This comprehensive setup ensures robust and reliable cooling performance across varying temperature demands.
The The CO2 gas-liquid separator is crucial for segregating CO2 gas droplets from the evaporator in the CO2 compression refrigeration system. This prevents the detrimental wet stroke in the compressor and maintains a stable liquid level, even as the pump operates. It efficiently stores end equipment and pipeline liquid return when the pump ceases operation. When used as a CO2 reservoir during idle periods, its capacity should accommodate all system CO2 liquid. Furthermore, an auxiliary evaporator at the top of the gas-liquid separator ensures CO2 pressure remains controlled post-shutdown. In the NH3/CO2 cascade refrigeration system, the condensing evaporator serves dual roles: it's both the NH3 side evaporator and the CO2 side condenser. Here, the compound liquid evaporates and absorbs heat inside the tube, while carbon dioxide gas condenses into a liquid within the shell, exemplifying its advanced heat exchange capabilities.
2. Advantages of the NH3/CO2 Cascade Refrigeration System: A New Standard in Refrigeration Excellence
(1) Enhanced Safety Profile with Reduced NH3 Risks:
(1.(1)) The NH3/CO2 cascade refrigeration system significantly minimizes NH3 condensing pressure, reducing it to approximately 1/10th of traditional ammonia systems, dramatically lowering potential risks.
(1.(2)) NH3 is confined to the machine room, akin to a 'tiger' securely 'caged', and is managed by skilled technical personnel, enhancing operational safety.
(1.(3)) Maximum utilization of NH3's excellent heat transfer properties in high-temperature regions to efficiently cool CO2, optimizing energy use and performance.
(2) CO2 as a Safe Medium for Personnel-Intensive Areas: By introducing CO2 into operational rooms and warehouses, such as single-freezing machines, this system ensures the utmost safety for personnel and protection of 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, we specialize in tailoring products to meet your unique requirements. If you're unsure about the right model for your needs, please feel free to reach out to us. Our team is ready to assist you with personalized guidance.Our team includes several highly skilled engineers who are committed to crafting a bespoke solution perfectly suited to your requirements.
Shandong Binzhou Huiyang Cold Chain Logistics Port
Spanning an impressive 60,542 square meters, this groundbreaking project features a comprehensive construction expanse of 72,370.31 square meters. It includes a state-of-the-art production workshop alongside a vast cold storage area of 65,538.50 square meters, meticulously designed to uphold superior standards.
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Qingdao Bingyan Refrigeration Equipment Co., Ltd. Established in 2011, Qingdao Bingyan Refrigeration Equipment Co., Ltd. is nestled in the picturesque coastal city of Qingdao. We are a pioneering high-tech enterprise, expertly integrating various facets of industrial and commercial freezing, cold storage, and comprehensive refrigeration systems. Our core competencies span research and development, design innovation, manufacturing excellence, and seamless sales strategies, making us an industry leader.
From the very beginning, our company has been steadfast in its commitment to 'science and technology' as the cornerstone of our operations. Guided by robust management practices, we are dedicated to fulfilling market needs and exceeding customer expectations. Our unwavering mission is to offer impeccable refrigeration solutions, top-tier products, and unparalleled service quality.
Boasting over ten prestigious national technology patents, our company is dedicated to perpetual innovation and excellence. We focus on crafting high-efficiency, energy-saving, and eco-friendly refrigeration system configurations. Our offerings include cutting-edge high-efficiency refrigeration units, energy-conserving barrel pumps, and advanced PLC intelligent program control boxes, showcasing our commitment to sustainable technology.
Our expertise extends to the program design and bespoke customization of equipment for various projects. We cater to specialized needs in food quick-freezing storage, cold storage solutions for food, ultra-low temperature preservation, pharmaceutical storage, and air-conditioned storage for fruits and vegetables. Additionally, our services cover workshop air conditioning, quick-freezing, freeze-drying, and sophisticated thawing devices, ensuring comprehensive solutions for diverse industries.
BINGYAN IS DEDICATED TO DELIVERING CUTTING-EDGE REFRIGERATION SYSTEM SOLUTIONS THAT ARE SCIENTIFICALLY SOUND AND HIGHLY EFFICIENT. OUR PROMISE INCLUDES PROVIDING EXCEPTIONAL ENGINEERING AND UNPARALLELED AFTER-SALES SERVICES TO OUR VALUED CLIENTS.
At Bingyan, we pride ourselves on offering a full spectrum of services that encompass sales, meticulous design, precise construction, and comprehensive after-sales support.
1. Our sales department excels at fully understanding and capturing the unique needs of our customers. We ensure that the intentions of our clients are conveyed with utmost accuracy and maintain seamless, unwavering communication to build strong relationships.
2. The design department is dedicated to delivering expert, well-considered engineering advice, crafting custom-tailored refrigeration plans that are both reliable and exceptionally stable, always aligning with the specific needs of our clients.
3. Our engineering department approaches every construction phase with meticulous attention to detail, meticulously executing each task with a commitment to excellence, thereby creating projects of the highest quality.
4. Our after-sales department stands ever-ready and vigilant, fully committed to ensuring the continued success and satisfaction of our customers 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.
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