NH3/CO2 Cascade Refrigeration System
1. NH3/CO2: The Principle of Cascade Refrigeration System
The NH3/CO2 cascade refrigeration system is a marvel of engineering, artfully composed of two distinct stages: high temperature and low temperature. The high temperature stage operates with NH3 as its refrigerant, while the low temperature stage employs CO2. In an ingenious process, the evaporation of NH3 refrigerant at the high temperature stage is leveraged to condense CO2 gas expelled from the low temperature side. Acting as a bridge between these stages is the condensation evaporator, a dual-purpose marvel serving as both the condenser for the CO2 and the evaporator for the NH3, seamlessly uniting the high and low temperature phases.
The intricate dance of heat transfer begins at the end evaporator, where the heat load moves to the CO2 refrigerant. This heat is then masterfully transferred to the high-temperature NH3 refrigerant via the condensing evaporator. Subsequently, the NH3 refrigerant releases this heat to the environment through the high-temperature condenser, utilizing a cooling medium. Following condensation in the evaporator, CO2 progresses to the CO2 reservoir, continuing through the dryer filter and throttle valve to enter the CO2 gas-liquid separator. The liquid CO2 is propelled to the CO2 evaporator by the CO2 circulation pump, continuing the cycle. As the evaporator completes its role, a mixture of phases returns to the separator, where gaseous CO2 is drawn into the compressor, compressed, and reintroduced to the condensing evaporator, perpetuating the elegant cycle of the cascade refrigeration system.
NH3/CO2 in the cascade refrigeration system represents a sophisticated integration of dual refrigerant systems, each dedicated to its temperature level. The high-temperature NH3 refrigeration system mimics traditional setups, complete with a refrigeration compressor, condenser, liquid storage, gas-liquid separator, and throttling device. Meanwhile, the low-temperature CO2 system boasts components such as a CO2 compressor, condensing evaporator, reservoir, and more, seamlessly interwoven for optimal performance.
The The CO2 gas-liquid separator stands as a guardian in the CO2 compression refrigeration system, diligently isolating CO2 gas droplets from the evaporator to avert compressor wet stroke, ensure stable liquid levels during pump operation, and accommodate liquid return when inactive. When the system is at rest, the separator doubles as a CO2 reservoir, with volume sufficient to contain all CO2 liquid. Furthermore, an auxiliary evaporator atop the separator precludes excessive CO2 pressure post-shutdown. In the NH3/CO2 cascade system, the condensing evaporator transcends its dual role as both NH3 evaporator and CO2 condenser, expertly facilitating compound liquid evaporation and heat absorption in the tube, while condensing CO2 gas into liquid form in the shell.
2. Advantages of NH3/CO2 Cascade Refrigeration System
(1) Reduced NH3 Safety Risks:
(1.(1)) The NH3/CO2 cascade system is a triumph in safety, drastically diminishing the NH3 refrigerant charge condensing pressure to approximately one-tenth of traditional systems;
(1.(2)) NH3 is safely confined within the machine and equipment rooms, akin to a controlled 'tiger in a cage,' diligently monitored by skilled professionals;
(1.(3)) The superior heat transfer qualities of NH3 are fully exploited in the high-temperature region, ingeniously used for cooling CO2.
(2) CO2 is utilized as a medium in densely populated operation zones, such as single-freezing units and storage areas, prioritizing the safety of both personnel and property.
650e809d
| 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 distinguished manufacturer, Qingdao Bingyan Refrigeration Equipment Co., Ltd. takes pride in offering tailored solutions to meet your unique needs. Unsure which model perfectly aligns with your requirements? Simply reach out to us, and let us guide you through the selection process with ease.Our team boasts several highly skilled engineers, dedicated to crafting a bespoke solution that perfectly fits your requirements. Rely on our expertise to deliver a customized experience just for you.
Shandong Binzhou Huiyang Cold Chain Logistics Port
Encompassing an impressive expanse of 60,542 square meters, this project boasts a grand total construction footprint of 72,370.31 square meters. It features a state-of-the-art production workshop and a vast cold storage area spanning an expansive 65,538.50 square meters, designed to meet all your logistical needs with unparalleled efficiency and innovation.
At Qingdao Bingyan Refrigeration Equipment Co., Ltd., we proudly offer an array of core products that cater to various refrigeration needs. Our state-of-the-art Condensing Units are designed to deliver optimal performance and reliability.,Cutting-edge Air Coolers that ensure efficient temperature management for diverse applications.,Innovative Evaporative Condensers providing superior heat exchange capabilities.,Advanced Freezers that meet the highest standards of efficiency and storage capacity.,Durable Cold Room Doors engineered for enhanced insulation and stability.,
High-quality Cold Storage Panels that offer exceptional thermal protection and structural integrity., To discover more about our extensive product offerings, simply click on the product name or image for detailed insights.
Qingdao Bingyan Refrigeration Equipment Co., Ltd. Established in 2011, Qingdao Bingyan Refrigeration Equipment Co., Ltd. is nestled in the enchanting coastal city of Qingdao. It is a pioneering high-tech enterprise that seamlessly integrates comprehensive industrial and commercial freezing and cold storage solutions. Our expertise spans research, design, manufacturing, and sales of advanced refrigeration systems and equipment.
Since its inception, Qingdao Bingyan has steadfastly embraced 'science and technology' as its guiding force, with 'management' as the backbone to effectively cater to market demands. Our mission is to deliver impeccable customer service and tailor-made refrigeration system solutions, aiming to surpass customer expectations with our outstanding products and services.
The company proudly boasts over ten national technology patents, consistently dedicating itself to the innovation of high-efficiency, energy-saving, and environmentally friendly refrigeration system configurations. Our offerings include cutting-edge refrigeration units, energy-efficient barrel pumps, and state-of-the-art PLC intelligent program control boxes, among others.
We excel in the program design and equipment customization for a diverse array of projects, including food quick-freezing storage, food cold storage, ultra-low temperature cold storage, medicine storage, fruit and vegetable air-conditioning storage, workshop air conditioning, as well as quick-freezing, freeze-drying, and thawing devices.
At BINGYAN, we are wholeheartedly committed to delivering not only scientific and meticulously crafted refrigeration system solutions, but also unmatched high-quality engineering and comprehensive after-sales services designed to exceed customer expectations.
Bingyan offers a full spectrum of services, seamlessly integrating sales, innovative design, expert construction, and dedicated after-sales support to ensure a superior customer experience.
1. Our sales department excels in accurately interpreting and fulfilling customer requirements, precisely communicating customer intentions, and maintaining a seamless and continuous dialogue to foster strong client relationships.
2. Our design department is dedicated to providing clients with expert engineering advice, crafting bespoke and reliable refrigeration solutions meticulously tailored to meet individual needs with precision.
3. Our engineering department approaches each construction process with meticulous attention to detail, ensuring every task is flawlessly executed to achieve outstanding quality in every project we undertake.
4. Our after-sales department remains ever vigilant and ready to provide unwavering support, guaranteeing the ultimate success and satisfaction of our clients.
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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