NH3/CO2 Cascade Refrigeration System
1. Principle of NH3/CO2 Cascade Refrigeration System
In the NH3/CO2 cascade refrigeration system, our innovative design comprises two pivotal stages: the high-temperature stage, utilizing NH3 as the refrigerant, and the low-temperature stage, where CO2 takes the lead. Ingeniously, the evaporated NH3 at the high-temperature level condenses the CO2 gas, seamlessly discharged from the lower temperature level. A sophisticated condensation evaporator unites these stages, serving dually as the low-temperature condenser and the high-temperature evaporator.
Harnessing the power of thermal transfer, the CO2 refrigerant absorbs heat via the end evaporator. This heat is skillfully transferred to the high-temperature NH3 through the condensing evaporator. The high-temperature NH3 then efficiently releases this heat to the environment using a cooling medium through the high-temperature condenser. After condensation, the CO2 flows into the CO2 reservoir, journeying through a dryer filter and throttle valve into the gas-liquid separator. Propelled by the CO2 circulation pump, the liquid travels to the CO2 evaporator, completing a cycle as two-phase CO2 returns to the separator, then compressed by the compressor back into the condensing evaporator. This cycle ensures a continuous, efficient cascade refrigeration process.
The NH3/CO2 cascade system divides into two sophisticated segments: the high-temperature NH3 refrigeration system, mirroring traditional systems with a compressor, condenser, liquid storage, and more; and the low-temperature CO2 system, featuring CO2 compressor, condensing evaporator, reservoir, and additional components like a gas-liquid separator, ensuring comprehensive refrigeration capabilities.
The Our CO2 gas-liquid separator plays a crucial role in refining the NH3/CO2 system. It meticulously separates droplets from CO2 gas post-evaporation, averting compressor wet stroke and ensuring liquid stability during pump operation. Acting as a reservoir during downtimes, it accommodates all CO2 liquid, complemented by an auxiliary evaporator that adeptly manages CO2 pressure post-shutdown. The condensing evaporator ingeniously serves dual roles, evaporating compound liquid on the NH3 side and converting CO2 gas into liquid on the other, maximizing thermal efficiency.
2. Advantages of NH3/CO2 Cascade Refrigeration System
(1) Reduced NH3 Safety Risks:
(1.(1)) Our NH3/CO2 cascade system significantly minimizes NH3 condensing pressure, reducing cooling medium charge by approximately 90% compared to traditional systems.
(1.(2)) NH3 is confined to controlled environments such as machine and equipment rooms, akin to a 'tiger in a cage', under expert supervision.
(1.(3)) This system exploits NH3's superior heat transfer properties in high-temperature regions to effectively cool CO2.
(2) CO2 as a Safe Medium: CO2 is safely integrated into personnel-dense operational areas, like freezing machines and warehouses, safeguarding both personnel and 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 distinguished manufacturer, Qingdao Bingyan Refrigeration Equipment Co., Ltd. takes pride in offering tailor-made products that meet your unique specifications. If you're uncertain about the ideal model for your needs, feel free to reach out to us. We are here to assist you in selecting the perfect fit.Leveraging our team of highly skilled engineers, we are dedicated to crafting a customized solution specifically designed for you.
Shandong Binzhou Huiyang Cold Chain Logistics Port
Spanning a vast expanse of 60,542 square meters, this ambitious project showcases a total construction area of 72,370.31 square meters. It features a sophisticated production workshop, complemented by an extensive cold storage area of 65,538.50 square meters, where state-of-the-art refrigeration technology meets unparalleled functionality.
Our company's main products include a diverse range of top-quality and innovative refrigeration solutions. Condensing units, which offer superior energy efficiency and performance.,Air Cooler, designed to deliver optimal cooling and climate control.,Evaporative condenser, engineered to enhance your system's efficiency and reliability.,Freezer, crafted to preserve your valuable perishables with precision.,Cold Room Doors, featuring robust construction for secure and insulated storage spaces.,
Cold storage panels, providing unparalleled insulation to maintain optimal storage conditions., To explore our full range of products, please click on the product name or image for detailed insights and specifications.
Qingdao Bingyan Refrigeration Equipment Co., Ltd. Established in 2011 and nestled in the picturesque coastal city of Qingdao, Qingdao Bingyan Refrigeration Equipment Co., Ltd. stands as a beacon of innovation in the realm of industrial and commercial freezing. We are a high-tech enterprise that seamlessly integrates research, design, manufacturing, and sales of advanced refrigeration systems and equipment.
Since its inception, our company has embraced 'science and technology' as our guiding light and 'management' as our cornerstone. Our mission is to meet market demands and exceed customer expectations by delivering impeccable refrigeration system solutions, products, and services.
With a portfolio boasting over ten national technology patents, we are perpetually devoted to pioneering high-efficiency, energy-saving, and environmentally conscious refrigeration system configurations. Our cutting-edge offerings include high-efficiency refrigeration units, energy-conserving barrel pumps, and PLC intelligent program control boxes, among others.
Our expertise primarily lies in the bespoke design and customization of equipment for an array of projects, including food quick-freezing storage, food cold storage, ultra-low temperature cold storage, pharmaceutical storage, fruit and vegetable air-conditioning storage, workshop air conditioning, as well as quick-freezing, freeze-drying, and thawing devices.
BINGYAN IS DEDICATED TO DELIVERING CUSTOMERS CUTTING-EDGE, SCIENTIFIC, AND HIGHLY EFFECTIVE REFRIGERATION SYSTEM SOLUTIONS, COMPLEMENTED BY EXCEPTIONAL ENGINEERING AND UNPARALLELED AFTER-SALES SERVICES.
Bingyan offers a full spectrum of services encompassing sales, design, construction, and impeccable after-sales service, ensuring an all-encompassing customer experience.
1. Our sales department possesses a profound understanding of customer needs, adeptly conveying their intentions with precision. We maintain seamless and close communication, ensuring every requirement is met with the utmost attention.
2. The design department is committed to providing expert engineering advice. We craft tailored, reliable, and stable refrigeration plans that align perfectly with the unique demands of our clients.
3. Our engineering department approaches every construction process with diligence, meticulously executing each task to perfection. We strive for excellence, ensuring our projects are of the highest quality.
4. The after-sales department is ever-ready and on alert to guarantee the uninterrupted success and satisfaction of our customers, standing by to address any need that may arise.
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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