NH3/CO2 Cascade Refrigeration System
1. NH3/CO2: The Innovative Principle of the Cascade Refrigeration System
The NH3/CO2 cascade refrigeration system is a state-of-the-art dual-stage solution, consisting of a high-temperature stage utilizing NH3 as the refrigerant and a low-temperature stage employing CO2. In this seamless integration, the evaporative cooling of NH3 in the high-temperature system effectively condenses the CO2 refrigerant gas from the low-temperature stage. A sophisticated condensing evaporator bridges these two stages, serving as both the condenser in the low-temperature level and the evaporator in the high-temperature level, ensuring top-notch efficiency and reliability.
Within this advanced system, thermal energy is adeptly transferred to the CO2 refrigerant via the end evaporator. This absorbed heat is then passed on to the NH3 refrigerant through the condensing evaporator. Subsequently, the high-temperature NH3 efficiently transfers the heat to a high-temperature condenser, where it's seamlessly released into the environment through a cooling medium. The condensed CO2 is systematically routed to the CO2 reservoir, progressing through a dryer filter and throttle valve, finally arriving at the CO2 gas-liquid separator. Here, the liquid CO2 is expertly delivered to the CO2 evaporator by the CO2 circulation pump, ensuring a continuous, end-to-end cooling process. Post-evaporation, the two-phase CO2 cycles back to the separator, while the gaseous CO2 is drawn by the compressor and reintegrated into the condensing evaporator, perpetuating the efficient cascade refrigeration cycle.
In the NH3/CO2 cascade refrigeration system, both high and low-temperature stages are dedicated single-refrigerant systems. The high-temperature NH3 system mirrors a conventional setup, complete with a refrigeration compressor, condenser, liquid storage, gas-liquid separator, and a throttling device for optimal performance. The low-temperature CO2 system is equally comprehensive, featuring a CO2 compressor, condensing evaporator, reservoir, gas-liquid separator, filter dryer, circulation pump, throttling device, evaporator, and expansion vessel, all meticulously designed for superior cooling efficiency.
The In the refined CO2 compression refrigeration system, the CO2 gas-liquid separator performs a critical role: separating CO2 gas droplets from the evaporator to prevent compressor wet strokes, ensuring a stable liquid level during pump operation, and securely storing end equipment and pipeline liquid returns when the pump ceases operation. As a multifunctional component, it can even act as a CO2 reservoir when idle, with ample capacity to hold the entire system's liquid CO2. Additionally, an auxiliary evaporator at the top safeguards against excessive pressure post-shutdown. In the NH3/CO2 cascade system, the condensing evaporator doubles as the NH3-side evaporator and CO2-side condenser, where compound liquids evaporate to absorb heat, and CO2 gas transforms into a liquid within the shell.
2. Unparalleled Advantages of the NH3/CO2 Cascade Refrigeration System
(1) Minimized NH3 Safety Concerns:
(1.(1)) The innovative NH3/CO2 cascade system drastically cuts down the NH3 refrigerant charge, maintaining it at approximately 1/10th of traditional ammonia systems, ensuring maximum safety and efficiency.
(1.(2)) NH3 is securely confined to the machine room, akin to a 'tiger' in a 'cage', expertly monitored by skilled personnel, ensuring unparalleled safety.
(1.(3)) The system fully leverages NH3's excellent high-temperature heat transfer properties, effectively cooling CO2 for superior performance.
(2) CO2 serves as a safe medium in high-traffic operational areas, such as single-freezing machines and warehouses, effectively safeguarding personnel and assets with its intrinsic safety benefits.
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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 leading manufacturer in refrigeration technology, Qingdao Bingyan Refrigeration Equipment Co., Ltd. is proud to offer tailored solutions to meet your specific needs. Unsure which model is perfect for you? Simply reach out to us! Our team is here to assist and provide guidance.Our expert team of engineers is ready to craft a bespoke solution designed just for you. Benefit from our extensive expertise and innovative approach to meet your unique requirements.
Shandong Binzhou Huiyang Cold Chain Logistics Port
This impressive project encompasses a sprawling 60,542 square meters, with a total construction area of 72,370.31 square meters. It features state-of-the-art production workshops and an expansive cold storage facility, covering 65,538.50 square meters, perfectly designed for seamless operations and efficiency in the cold chain logistics industry.
Unveiling our company's flagship selections, we proudly present our main products: Advanced Condensing Units,High-Efficiency Air Coolers,Innovative Evaporative Condensers,State-of-the-Art Freezers,Precision Cold Room Doors,
Durable Cold Storage Panels, To explore our full range of products, simply click on the product name or image to discover more details.
Qingdao Bingyan Refrigeration Equipment Co., Ltd. Established in the enchanting coastal city of Qingdao in 2011, Qingdao Bingyan Refrigeration Equipment Co., Ltd. is at the forefront of innovation, seamlessly integrating industrial and commercial freezing solutions, cold storage facilities, and state-of-the-art refrigeration systems. As a high-tech enterprise, we excel in research and development, design, manufacturing, and sales, positioning ourselves as leaders in the refrigeration industry.
From our inception, we have been driven by a steadfast commitment to 'science and technology' as our guiding principle, coupled with 'management' as our assurance to exceed market demands. Our mission is to deliver unparalleled customer service and provide comprehensive refrigeration system solutions, products, and specialized services that exceed expectations.
Our company proudly holds over ten national technology patents, with a perpetual dedication to pioneering research and development. We focus on creating high-efficiency, energy-saving, and environmentally friendly refrigeration configurations. Our offerings include advanced refrigeration units, energy-efficient barrel pumps, and cutting-edge PLC intelligent program control boxes, among other innovations.
We specialize in the meticulous design and customization of equipment for a diverse range of projects, including rapid food freezing storage, cold storage for food preservation, ultra-low temperature facilities, pharmaceutical storage, fruit and vegetable climate-controlled storage, workshop air conditioning, and advanced solutions for quick-freezing, freeze-drying, and thawing processes.
BINGYAN IS PASSIONATELY DEDICATED TO DELIVERING CUSTOMERS SCIENTIFICALLY ENGINEERED, WELL-THOUGHT-OUT REFRIGERATION SYSTEM SOLUTIONS, ALONGSIDE TOP-NOTCH ENGINEERING WORKMANSHIP AND EXCEPTIONAL AFTER-SALES SUPPORT.
Bingyan offers an all-encompassing suite of services, encompassing sales, innovative design, meticulous construction, and unrivaled after-sales support.
1. Our sales department keenly understands and perfectly grasps the nuances of customer needs, ensuring precise communication of customer intentions, and maintaining a seamless line of communication with our valued clients.
2. The design department delivers expert, professional recommendations tailored to each client, crafting reliable and stable refrigeration plans that precisely meet their needs.
3. Our engineering department approaches each construction process with the utmost seriousness, meticulously executing each task to perfection, thereby creating superior quality projects.
4. The after-sales department remains ever-ready, poised to ensure the ongoing success and satisfaction of our customers.
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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