NH3/CO2 Cascade Refrigeration System - Cutting-Edge Technology
1. The Principle Behind NH3/CO2 Cascade Refrigeration System
NH3/CO2, the cascade refrigeration system ingeniously integrates two stages: a high-temperature stage utilizing NH3 (Ammonia) as the refrigerant, and a low-temperature stage employing CO2 (Carbon Dioxide) as the refrigerant. The evaporative action of NH3 at the high temperature stage condenses the CO2 refrigerant gas from the low temperature stage. A sophisticated condensation evaporator bridges these stages, functioning dually as the condenser for the CO2 and the evaporator for NH3. This seamless integration ensures optimal cooling performance and energy efficiency.
The heat load is meticulously transferred to the CO2 refrigerant through the end evaporator, while the absorbed heat by CO2 is further transferred to the high-temperature NH3 refrigerant via the condensing evaporator. The NH3 refrigerant then disperses the heat into the environment through the high-temperature condenser with the aid of a cooling medium. The condensed CO2 is collected in a reservoir and filtered before entering the CO2 gas-liquid separator. Subsequently, a CO2 circulation pump directs the liquid CO2 to the evaporator, after which the two-phase CO2 returns to the separator. The compressor then re-compresses the gaseous CO2, continuing this efficient cycle.
In this sophisticated NH3/CO2 cascade refrigeration system, both high and low-temperature levels operate as independent refrigeration systems using single refrigerants. The high-temperature NH3 system is parallel to conventional setups, comprising a refrigeration compressor, condenser, liquid storage, gas-liquid separator, and a throttling device. Meanwhile, the low-temperature CO2 system features a CO2 compressor, condensing evaporator, reservoir, gas-liquid separator, filter dryer, pump, throttling device, evaporator, and an expansion vessel, ensuring a comprehensive and streamlined refrigeration process.
TheCO2gas-liquid separator is pivotal in isolating CO2 gas droplets from the evaporator within the CO2 compression refrigeration system, preventing compressor wet strokes and ensuring a stable liquid level during pump operations. When inactive, it serves as a reservoir, capable of holding the entire CO2 liquid volume. Equipped with an auxiliary evaporator, it adeptly prevents excessive CO2 pressure buildup post-shutdown. In the NH3/CO2 cascade system, the condensing evaporator plays a dual role, efficiently acting as both the NH3 evaporator and CO2 condenser, where compound liquid evaporation and heat absorption occur within the tube, condensing CO2 gas into liquid within the shell.
2. Outstanding Advantages of the NH3/CO2 Cascade Refrigeration System
(1) Enhanced Safety with Reduced NH3 Risks:
(1.(1))The NH3/CO2 cascade system markedly diminishes NH3 condensing pressure, requiring only about 1/10th of the traditional ammonia system charge.
(1.(2))NH3 is securely confined to the machine room, akin to a "tiger in a cage," under the vigilant supervision of skilled technicians.
(1.(3))Optimal utilization of NH3's superior heat transfer properties in high-temperature regions to efficiently cool CO2.
(2) Introduction of CO2 into high-traffic areas (e.g., single-freezing machines and warehouses) ensures enhanced safety for personnel and assets.
61604916
| 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 |
Qingdao Bingyan Refrigeration Equipment Co., Ltd. Founded in 2011 and nestled in the picturesque coastal city of Qingdao, Qingdao Bingyan Refrigeration Equipment Co., Ltd. is a pioneering high-tech enterprise that integrates industrial and commercial freezing systems, cold storage solutions, and advanced refrigeration equipment. From research and development to design, manufacturing, and sales, we offer a comprehensive suite of refrigeration solutions.
Since our inception, we have steadfastly adhered to a philosophy of 'science and technology' as our guiding principles and 'management' as our foundation. Our mission is to meet market demands and provide exemplary customer service by delivering perfect refrigeration system solutions, products, and services.
With over ten national technology patents, our company is perpetually committed to the research and development of high-efficiency, energy-saving, and eco-friendly refrigeration systems. Our portfolio includes high-efficiency refrigeration units, energy-saving barrel pumps, PLC intelligent program control boxes, among other cutting-edge technologies.
We specialize in the design and customization of refrigeration programs and equipment for a wide array of applications. Our projects include food quick-freezing storage, cold storage, ultra-low temperature storage, pharmaceutical storage, fruit and vegetable air-conditioning storage, workshop air conditioning, quick-freezing and freeze-drying systems, and thawing devices.
BINGYAN IS DEDICATED TO DELIVERING SCIENTIFICALLY DESIGNED AND REASONABLY ENGINEERED REFRIGERATION SYSTEM SOLUTIONS, ALONG WITH TOP-TIER ENGINEERING SERVICES AND EXCEPTIONAL AFTER-SALES SUPPORT.
Bingyan offers a full spectrum of services encompassing sales, design, construction, and after-sales support, ensuring a seamless experience from start to finish.
1. Our sales department excels in understanding and precisely articulating customer needs, ensuring that client intentions are accurately conveyed and maintaining robust communication throughout the process.
2. The design department delivers expert and pragmatic engineering advice, crafting reliable and stable refrigeration plans tailored to the unique requirements of each client.
3. Our engineering department approaches every construction process with meticulous attention to detail and a commitment to excellence, striving to deliver superior quality projects.
4. The after-sales department remains vigilant and ready, ensuring continuous support and the ultimate success of our customers.
Q:What's your advantage?
A: Leveraging our team of professional designers, we tailor refrigeration solutions to meet your specific needs, selecting the most suitable equipment to ensure optimal cooling efficiency, energy conservation, and power savings.
Q: How strong is your company?
A: Established in 2011, our company boasts a seasoned team of cold storage designers, installation experts, and experienced after-sales maintenance personnel. We offer a comprehensive suite of services, including cold storage design, installation guidance, and ongoing maintenance.
Q:Where are you located? Can I visit you?
A: Absolutely! We warmly invite you to visit our factory at your convenience.
Q:How about the delivery time?
A: Delivery is typically within 60 days after confirming your requirements.
Q:What kind of payment methods does your company support?
A: We generally require a 30% down payment via T/T upon confirming the Proforma Invoice (PI), with the remaining balance due after inspection and before shipment. We accept telegraphic transfer and sight letter of credit.
Q: When can I get the price?
A: We usually provide a quote within 24 hours after receiving your inquiry.
Q: Which shipping methods can you provide?
A: We offer shipping by sea, by air, and by express delivery.
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