NH3/CO2 Cascade Refrigeration System
1. NH3/CO2: The Principle of Cascade Refrigeration System
In the innovative NH3/CO2 cascade refrigeration system, a harmonious synergy between the high and low temperature stages is achieved. The high temperature stage ingeniously utilizes NH3 as its refrigerant, while the low temperature stage employs CO2. This dynamic duo operates seamlessly, where NH3's evaporation in the high temperature system skillfully condenses the CO2 refrigerant from the low temperature system. A sophisticated condensation evaporator artistically bridges these two stages, functioning both as a condenser for CO2 at low temperatures and as an evaporator for NH3 at high temperatures.
Within this cutting-edge cascade system, the heat load is effectively transferred to the CO2 refrigerant through the end evaporator. The CO2 refrigerant, after absorbing heat, passes it to the high-temperature NH3 refrigerant through the condensing evaporator. The NH3 then channels this heat to a high-temperature condenser, where it is gracefully released into the environment, facilitated by a cooling medium. The CO2, now condensed, is directed to a reservoir, subsequently entering a gas-liquid separator. There, after passing through a dryer filter and throttle valve, the liquid CO2 is propelled to the evaporator via a circulation pump. Post-evaporation, the two-phase CO2 returns to the gas-liquid separator, while the gaseous CO2 is compressed again, perpetuating this elegant cycle of refrigeration.
In the NH3/CO2 cascade system, each temperature level stands as an independent entity using a singular refrigerant. The high-temperature NH3 system mirrors traditional refrigeration setups, encompassing a refrigeration compressor, condenser, liquid storage, gas-liquid separator, and throttling device. The low-temperature CO2 system, on the other hand, is equipped with a CO2 compressor, condensing evaporator, reservoir, gas-liquid separator, filter dryer, pump, throttling device, evaporator, and expansion vessel, making it a comprehensive and efficient refrigeration solution.
The The CO2 gas-liquid separator plays a pivotal role in efficiently isolating CO2 gas droplets from the evaporator within the CO2 compression refrigeration system. This meticulous separation is crucial to prevent compressor wet strokes, ensure stable liquid levels during pump operation, and manage liquid return when the pump halts. When used as a CO2 reservoir during downtime, its capacity must accommodate the full system's CO2 liquid volume. Additionally, an auxiliary evaporator is strategically positioned atop the separator to prevent excessive CO2 pressure post-shutdown. In the NH3/CO2 cascade system, the condensing evaporator remarkably serves as both an NH3 side evaporator and a CO2 side condenser, facilitating a flawless heat exchange where the liquid compound evaporates and CO2 gas transforms into liquid within the shell.
2. Advantages of NH3/CO2 Cascade Refrigeration System
(1) Enhanced Safety with Reduced NH3 Factors:
(1.(1))The NH3/CO2 cascade technology significantly lowers the NH3 refrigerant charge pressure, trimming it to a mere 1/10 of what traditional ammonia systems demand;
(1.(2))NH3 confinement to designated machine and equipment rooms is akin to a 'tiger' safely caged, constantly monitored by skilled professionals;
(1.(3))Exemplary utilization of NH3's superior heat transfer properties in the high-temperature zone to efficiently cool CO2.
(2) CO2's Role in Personnel-Rich Zones: This medium confidently enters areas bustling with activity, such as single-freezing machines and warehouses, ensuring both personnel and property safety.
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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 |
We are a leading manufacturer renowned for our exceptional ability to tailor products precisely to meet your specific needs and preferences. If you are unsure about which model best suits your purposes, feel free to reach out to us for expert guidance.Our team consists of highly skilled professional engineers, dedicated to crafting bespoke solutions tailored uniquely for you.
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Spanning an impressive 60,542 square meters, this project includes a total construction area of 72,370.31 square meters. It boasts a state-of-the-art production workshop and a dedicated cold storage area covering an expansive 65,538.50 square meters, designed to enhance and streamline your cold storage operations efficiently.
At Qingdao Bingyan Refrigeration Equipment Co., Ltd., we pride ourselves on our comprehensive range of state-of-the-art refrigeration solutions, including: High-Efficiency Condensing Units,Innovative Air Coolers,Cutting-Edge Evaporative Condensers,Robust Freezers,Durable Cold Room Doors,
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Qingdao Bingyan Refrigeration Equipment Co., Ltd. Established in 2011 in the picturesque coastal city of Qingdao, Qingdao Bingyan Refrigeration Equipment Co., Ltd. epitomizes innovation by integrating industrial and commercial freezing, cold storage, and cutting-edge refrigeration systems. As a high-tech enterprise, we specialize in comprehensive R&D, meticulous design, manufacturing excellence, and the strategic sales of top-tier refrigeration equipment.
From our inception, we have passionately embraced 'science and technology' as our guiding light, with 'management' as our unwavering backbone. This steadfast commitment allows us to adeptly meet market demands and deliver unparalleled customer service. Our mission is clear: to offer impeccable refrigeration system solutions, premier products, and exceptional services to our valued clientele.
Boasting over ten prestigious national technology patents, we are steadfast in our dedication to pioneering high-efficiency, energy-saving, and environmentally conscious refrigeration systems. Our innovative lineup includes superior refrigeration units, energy-efficient barrel pumps, and advanced PLC intelligent program control boxes, setting new benchmarks in the industry.
Our expertise lies in the bespoke design and customization of equipment for an array of projects. These include food quick-freezing storage, ultra-low temperature cold storage, medical storage solutions, and specialized climate-controlled environments for fruits and vegetables. We also excel in workshop air conditioning, quick-freezing, freeze-drying, and sophisticated thawing devices, ensuring versatility and precision for every application.
At Qingdao Bingyan Refrigeration Equipment Co., Ltd., we are fervently dedicated to offering our esteemed clients exceptionally scientific and well-reasoned refrigeration system solutions. We pride ourselves on delivering top-tier engineering services and unparalleled after-sales support, ensuring satisfaction from start to finish.
Bingyan expertly delivers a full spectrum of services, encompassing everything from sales and meticulous design, to precise construction and comprehensive after-sales care.
1. Our sales department is adept at discerning and understanding the nuanced needs of each customer. We ensure the accurate conveyance of client intentions and maintain an open, seamless line of communication, perfectly aligning our services with your unique requirements.
2. The design department excels in offering customers expert engineering suggestions that are both professional and astutely reasoned. We customize robust and stable refrigeration plans tailored uniquely to meet your specific demands.
3. Our engineering department is committed to precision in every construction phase, meticulously accomplishing each task. We strive for nothing less than excellence, dedicated to executing high-quality projects that exceed expectations.
4. The after-sales department stands ever-ready, always on alert to ensure uninterrupted success for our valued customers, providing unwavering support whenever needed.
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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