NH3/CO2 Cascade Refrigeration System
1. The Ingenious NH3/CO2 Cascade Refrigeration System Principle
The pioneering NH3/CO2 cascade refrigeration system is intelligently crafted with two dynamic stages: the high-temperature stage and the low-temperature stage. In this ingenious system, NH3 is employed as the refrigerant for the high-temperature stage, while CO2 takes center stage in the low-temperature phase. This sophisticated cycle utilizes the evaporation of NH3 to elegantly condense the CO2 gas emanating from the low-temperature phase. The magic happens in the condensation evaporator, which serves a dual function: seamlessly connecting the high and low temperature components as both a condenser for the low-temperature phase and an evaporator for the high-temperature stage. A marvel of refrigeration engineering!
The heat exchange marvel continues as the end evaporator transfers the heat load to the industrious CO2 refrigerant. This heat journey carries on as the absorbed heat by CO2 is transferred to the ever-capable high-temperature NH3 refrigerant, which then skillfully dissipates it to the environment via the high-temperature condenser. In the condensing evaporator, CO2 is meticulously condensed and enters the CO2 reservoir, eventually finding its way through the dryer filter and throttle valve to the CO2 gas-liquid separator. The brilliant cycle continues as the liquid CO2 is propelled to the CO2 evaporator by the circulating pump—without the need for an end cooling device. After the evaporator, the two-phase CO2 makes a triumphant return to the gas-liquid separator, where the compressor takes charge to compress it back into the condensing evaporator, repeating the entire cascade cycle with unwavering precision.
In the NH3/CO2 cascade refrigeration system, each temperature level functions as an independent refrigeration system, utilizing a single refrigerant. The high-temperature NH3 system mirrors conventional setups, complete with a trusty refrigeration compressor, condenser, liquid storage, gas-liquid separator, and throttling device. Meanwhile, the low-temperature CO2 system is packed with technological marvels, including a CO2 compressor, condensing evaporator, reservoir, gas-liquid separator, filter dryer, pump, throttling device, evaporator, and expansion vessel. A testament to engineering excellence!
The The CO2 gas-liquid separator is a crucial component, expertly separating CO2 gas droplets from the evaporator in the CO2 compression system. This ensures that the compressor avoids the dreaded wet stroke, maintains a stable liquid level during pump operation, and stores end equipment and pipeline liquid return when the pump halts. Ingeniously, if the separator doubles as a CO2 reservoir during downtime, it boasts the capacity to hold all CO2 liquid within the system. Additionally, an auxiliary evaporator is strategically placed atop the separator to deftly prevent excessive CO2 pressure post-shutdown. In the NH3/CO2 cascade system, the condensing evaporator artfully toggles between roles: evaporator on the NH3 side and condenser on the CO2 side. Inside, the compound liquid gracefully evaporates, absorbing heat, while CO2 gas is seamlessly transformed into liquid within the shell—a symphony of thermodynamic prowess.
2. Unmatched Advantages of the NH3/CO2 Cascade Refrigeration System
(1) Enhanced Safety with Lowered NH3 Risks:
(1.(1)) The NH3/CO2 cascade system ingeniously mitigates NH3 condensing pressure, reducing it to a mere 1/10 of what traditional systems endure.
(1.(2)) NH3 remains confined to the machine and equipment rooms, akin to a 'tiger' safely within a 'cage', vigilantly watched over by skilled professionals, ensuring unparalleled safety.
(1.(3)) Fully capitalizes on NH3's remarkable heat transfer properties in high-temperature regions, efficiently cooling CO2.
(2) CO2, a safe medium, extends its reach into bustling operation rooms and warehouses (such as single-freezing machines), safeguarding both people and properties with commendable efficacy.
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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 |
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Qingdao Bingyan Refrigeration Equipment Co., Ltd. proudly presents an extensive array of core and complementary products, specially engineered to meet your refrigeration needs: High-Performance Condensing Units,Efficient Air Coolers,Innovative Evaporative Condensers,Advanced Freezers,Durable Cold Room Doors,
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Qingdao Bingyan Refrigeration Equipment Co., Ltd. Established in the picturesque coastal city of Qingdao in 2011, Qingdao Bingyan Refrigeration Equipment Co., Ltd. stands as a beacon of innovation. We specialize in integrating industrial and commercial freezing, cold storage, and comprehensive refrigeration system solutions. Our expertise spans research, design, manufacturing, and sales, making us a leading high-tech enterprise.
From day one, our company has been driven by a commitment to cutting-edge science and technology. We focus on strategic management to ensure we meet market demands and exceed customer expectations. Our mission is to deliver unparalleled refrigeration system solutions, superior products, and exceptional services.
With an impressive portfolio of over ten national technology patents, we are dedicated to advancing efficient, energy-saving, and eco-friendly refrigeration systems. Our offerings include high-performance refrigeration units, energy-efficient barrel pumps, and state-of-the-art PLC intelligent program control boxes.
Our expertise extends to designing and customizing equipment for diverse projects. These include food quick-freezing and cold storage, ultra-low temperature solutions, pharmaceutical storage, climate-controlled storage for fruits and vegetables, as well as air conditioning for workshops, quick-freezing, freeze-drying, and thawing devices.
BINGYAN IS DEDICATED TO DELIVERING INNOVATIVE AND METICULOUSLY ENGINEERED REFRIGERATION SYSTEM SOLUTIONS, COUPLED WITH EXCEPTIONAL ENGINEERING EXPERTISE AND UNPARALLELED AFTER-SALES SUPPORT.
Bingyan offers an all-encompassing suite of services that includes meticulous sales, innovative design, precise construction, and dedicated after-sales service.
1. The sales department is adept at discerning and capturing customer requirements, ensuring precise communication of customer intentions, and maintaining seamless and open communication channels with clients.
2. The design department crafts tailored, professional, and robust engineering solutions, formulating reliable and stable refrigeration plans meticulously aligned with customer specifications.
3. The engineering department approaches each construction phase with precision and care, flawlessly executing every task and consistently pursuing excellence to deliver projects of the highest quality.
4. The after-sales department remains ever-vigilant and prepared to guarantee customer satisfaction and success.
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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