NH3/CO2 Cascade Refrigeration System
1. NH3/CO2: The Cascade Refrigeration System Principle
The NH3/CO2 cascade refrigeration system is ingeniously designed with a dual-stage configuration: a high-temperature stage utilizing NH3 and a low-temperature stage employing CO2. In this sophisticated system, NH3 evaporates in the high-temperature stage to effectively condense CO2 gas from the low-temperature stage. A specially crafted condensation evaporator connects these stages, serving as both the condenser for the low-temperature level and the evaporator for the high-temperature level, ensuring seamless operation.
The brilliant heat transfer begins as the CO2 refrigerant absorbs heat from the end evaporator, transferring it seamlessly to the high-temperature NH3 refrigerant through the condensing evaporator. This high-temperature NH3 then efficiently releases the absorbed heat to the environment via the high-temperature condenser using a cooling medium. The condensed CO2 enters the reservoir and proceeds through a dryer filter and throttle valve to the gas-liquid separator. Propelled by the CO2 circulation pump, liquid CO2 flows to the evaporator, completing its cycle by returning as a two-phase CO2 to the gas-liquid separator. The gaseous CO2 is then compressed and recycled through the condensing evaporator, perpetuating the cascade refrigeration cycle.
In the NH3/CO2 cascade refrigeration setup, distinct high and low temperature systems utilize single refrigerants for optimal efficiency. The high-temperature NH3 system mirrors conventional configurations, comprising a refrigeration compressor, condenser, liquid storage, gas-liquid separator, and throttling apparatus. Meanwhile, the low-temperature CO2 system features a CO2 compressor, condensing evaporator, reservoir, gas-liquid separator, filter dryer, pump, throttling mechanism, evaporator, and expansion vessel, ensuring a sophisticated and complete refrigeration solution.
The CO2 gas-liquid separator performs the critical task of segregating CO2 gas droplets from the evaporator in the CO2 compression system. This prevents compressor wet stroke, maintains liquid levels when the pump operates, and ensures end equipment and pipeline safety upon pump deactivation. If utilized as a CO2 reservoir when idle, it must accommodate all system-wide CO2 liquid. Additionally, an auxiliary evaporator atop the separator prevents excessive CO2 pressure post-shutdown. In the NH3/CO2 cascade, the condensing evaporator functions dually as the NH3 side evaporator and the CO2 side condenser, facilitating compound liquid evaporation and CO2 condensation with superior heat absorption and stability.
2. Advantages of NH3/CO2 Cascade Refrigeration System
(1) Enhanced Safety with Reduced NH3 Factors:
(1.(1)) The NH3/CO2 cascade system significantly lowers the NH3 refrigerant charge condensing pressure to approximately one-tenth of traditional systems, ensuring heightened safety.
(1.(2)) NH3 is securely confined to the machine room and equipment room, akin to a 'tiger' in a 'cage,' under vigilant supervision by skilled professionals.
(1.(3)) Optimal use of NH3's superior heat transfer properties in high-temperature areas efficiently cools CO2.
(2) CO2, as a medium, is safely integrated into personnel-dense areas (such as single-freezing machines) and warehouses, providing robust protection for both personnel and assets.
91846f91
| 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 |
We are a distinguished manufacturer, dedicated to crafting tailor-made products that perfectly align with your unique requirements. Unsure of which model will cater to your needs? Feel free to reach out, and our expert team will guide you.Our team boasts several highly skilled professional engineers, ready to develop a bespoke solution tailored specifically for you.
Shandong Binzhou Huiyang Cold Chain Logistics Port
This expansive project encompasses a vast area of 60,542 square meters, with an impressive total construction area of 72,370.31 square meters. It includes a state-of-the-art production workshop and a spacious cold storage area, covering 65,538.50 square meters dedicated to preserving perishable goods at optimal temperatures.
At Qingdao Bingyan Refrigeration Equipment Co., Ltd., we proudly offer a diverse array of innovative solutions tailored to meet the needs of our clients. Our core offerings include cutting-edge Condensing Units, designed to optimize efficiency and performance in various applications.,State-of-the-art Air Coolers, which ensure superior cooling while maintaining energy efficiency.,Advanced Evaporative Condensers, engineered for maximum heat exchange and energy conservation.,High-performance Freezers that keep your products at the perfect temperature.,Durable and secure Cold Room Doors, crafted to provide excellent insulation and protection.,
Robust Cold Storage Panels, designed for optimal thermal efficiency in your storage solutions., If you're eager to explore further, feel free to click on any product name or image to uncover more information about our extensive range of solutions.
Qingdao Bingyan Refrigeration Equipment Co., Ltd. Founded in 2011 and nestled in the picturesque coastal city of Qingdao, our company seamlessly integrates the development, design, manufacturing, and sales of both industrial and commercial freezing and cold storage refrigeration systems. As a high-tech enterprise, we are dedicated to crafting cutting-edge solutions that redefine refrigeration standards.
Since its inception, Qingdao Bingyan Refrigeration Equipment Co., Ltd. has been steadfast in its commitment to pioneering 'science and technology' as its guiding beacon and 'management' as the cornerstone to ensure we satiate market demands and exceed customer expectations. Our ultimate aim is to deliver impeccable refrigeration solutions, products, and services that resonate with excellence.
With a robust portfolio of over ten national technology patents, our company continually focuses on innovating high-efficiency, energy-saving, and environmentally friendly refrigeration systems. Our offerings include state-of-the-art high-efficiency refrigeration units, energy-efficient barrel pumps, and sophisticated PLC intelligent program control boxes, among others.
Our expertise primarily lies in the program design and bespoke equipment customization for projects encompassing food quick-freezing storage, food cold storage, ultra-low temperature cold storage, medicinal storage, controlled-environment storage for fruits and vegetables, workshop climate control, rapid freezing and freeze-drying technologies, and advanced thawing devices.
At BINGYAN, we are passionately dedicated to delivering cutting-edge and scientifically sound refrigeration system solutions. Our commitment extends beyond systems to include top-tier engineering and exemplary after-sales services that ensure the highest customer satisfaction.
Bingyan stands as a beacon of comprehensive support, offering an all-encompassing suite of services that encompasses sales, bespoke design, meticulous construction, and dedicated after-sales assistance.
1. Our sales department excels in precisely identifying and capturing the unique needs of each customer. We ensure their intentions are communicated with crystal clarity, maintaining a seamless dialogue that nurtures strong customer relationships.
2. The design department is devoted to equipping customers with expert and thoughtfully crafted engineering advice, tailoring resilient and stable refrigeration plans carefully aligned with individual customer requirements.
3. Our engineering department is unwavering in its commitment to excellence, diligently addressing every construction phase with precision and dedication, aiming to deliver projects of the highest quality that exceed expectations.
4. Always on alert, our after-sales department is perpetually prepared to respond, ensuring our clients' success remains uninterrupted and their satisfaction continually sustained.
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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