NH3/CO2 Cascade Refrigeration System
1. NH3/CO2: The Ingenious Principle of Cascade Refrigeration Systems
Within the NH3/CO2 cascade refrigeration system, this innovative design comprises two integral stages: the high temperature stage, utilizing NH3 as the refrigerant, and the low temperature stage, using CO2. The NH3 refrigerant evaporates at the high-temperature level to efficiently condense the CO2 refrigerant gas emitted from the low-temperature stage. An integrated condensation evaporator acts as a vital conduit, linking both temperature levels. This dual-purpose device serves as the condenser for the low-temperature stage and the evaporator for the high-temperature level, ensuring seamless and efficient operation.
In this innovative system, the heat load is expertly transferred to the CO2 refrigerant through the end evaporator. The absorbed heat is then conveyed to the high-temperature NH3 refrigerant via the condensing evaporator. The NH3 refrigerant subsequently transfers the heat to a high-temperature condenser, releasing it into the environment using a cooling medium. Condensed CO2 in the evaporator is directed into the CO2 reservoir, proceeding to the CO2 gas-liquid separator through a dryer filter and throttle valve. The CO2 circulation pump sends the liquid CO2 to the evaporator, initiating a refined cycle with no end cooling device, like a single freezer or chiller. Post-evaporation, a two-phase CO2 returns to the gas-liquid separator, where the gaseous CO2 is compressed into the condensing evaporator by the compressor, perpetuating the entire cascade refrigeration cycle.
Within the NH3/CO2 cascade refrigeration system, the high and low temperature levels function as independent refrigeration systems, each utilizing a single refrigerant. The high-temperature NH3 system mirrors a conventional refrigeration setup, encompassing a refrigerant compressor, along with a condenser, liquid storage, gas-liquid separator, and throttling device. Meanwhile, the low-temperature CO2 system is equipped with a CO2 compressor, condensing evaporator, reservoir, gas-liquid separator, filter dryer, pump, throttling device, evaporator, and expansion vessel, exemplifying a comprehensive and efficient cooling mechanism.
The The CO2 gas-liquid separator ingeniously separates CO2 gas droplets from the evaporator in the CO2 compression refrigeration system. This prevents the compressor's wet stroke, ensures a stable liquid level during pump operation, and effectively stores any liquid returns from end equipment and pipelines when the pump ceases operation. Should the gas-liquid separator function as a CO2 reservoir during inaction, its volume must accommodate all system CO2 liquid. An auxiliary evaporator atop the separator ensures CO2 pressure remains controlled post-shutdown. In the NH3/CO2 cascade system, the condensing evaporator serves as both the NH3 side evaporator and the CO2 side condenser. Here, complex liquids evaporate, absorbing heat within the tube, while CO2 gas transforms into liquid within the shell.
2. Unveiling the Advantages of the NH3/CO2 Cascade Refrigeration System
(1) Mitigating NH3 Safety Concerns:
(1.(1)) The NH3/CO2 cascade refrigeration system dramatically cuts the condensing pressure of NH3 refrigerant medium by approximately 90% compared to traditional ammonia systems.
(1.(2)) NH3 confinement to the machine and equipment rooms positions it as a 'caged tiger,' safely monitored by skilled professionals.
(1.(3)) By maximally exploiting NH3's excellent heat transfer capabilities in high-temperature zones, it efficiently cools CO2.
(2) CO2's role as an operational medium in personnel-dense environments (e.g., single-freezing machines and warehouses) bolsters safety for both individuals and assets.
c7970c20
| 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 premier manufacturer in the industry, Qingdao Bingyan Refrigeration Equipment Co., Ltd. is proud to offer bespoke customization services for our valued clients. Whether you have specific requirements or are unsure which model suits your needs, our team is here to assist. Simply reach out to us with your inquiries, and we will guide you towards the perfect solution.Our esteemed team boasts several highly experienced engineers, each equipped with the expertise to craft tailored solutions just for you. Rest assured, your unique needs will be met with precision and excellence.
Shandong Binzhou Huiyang Cold Chain Logistics Port
The project spans a vast area of 60,542 square meters, with an impressive total construction area encompassing 72,370.31 square meters. It features a dedicated production workshop and an expansive cold storage section, which together measure a substantial 65,538.50 square meters.
At Qingdao Bingyan Refrigeration Equipment Co., Ltd., we proudly offer a comprehensive suite of industry-leading products, including: High-performance Condensing Units,Efficient Air Coolers,Advanced Evaporative Condensers,Reliable Freezers,Durable Cold Room Doors,
Robust Cold Storage Panels, To uncover more of our exceptional offerings, simply click on the product name or product image for detailed insights.
Qingdao Bingyan Refrigeration Equipment Co., Ltd. Established in the vibrant coastal hub of Qingdao in 2011, Qingdao Bingyan Refrigeration Equipment Co., Ltd. stands as a beacon of innovation, seamlessly integrating industrial and commercial freezing, cold storage, and advanced refrigeration systems. We excel in the research, development, design, manufacturing, and sales of cutting-edge refrigeration equipment, positioning ourselves as a powerhouse in high-tech enterprise solutions.
From our inception, we have driven forward with "science and technology" as our compass and "management" as our backbone, keenly attuned to market demands to exceed customer expectations. Our unwavering commitment is to deliver unparalleled refrigeration system solutions, tailored products, and exceptional service that perfectly align with customer needs.
Our company proudly holds over ten national technology patents, dedicating resources to the perpetual innovation of high-efficiency, energy-saving, and eco-friendly refrigeration systems. Our portfolio includes robust refrigeration units, energy-saving barrel pumps, and state-of-the-art PLC intelligent program control boxes, underscoring our dedication to advanced technological excellence.
We specialize in bespoke program design and equipment customization for a diverse array of projects, such as food quick-freezing storage, food cold storage, ultra-low temperature cold storage, medicine storage, fruit and vegetable air-conditioning storage, workshop air conditioning, as well as quick-freezing and freeze-drying and thawing devices, ensuring precise and reliable solutions for every need.
At BINGYAN, we pledge to deliver cutting-edge refrigeration system solutions that are both scientifically advanced and meticulously tailored to meet your needs. Our commitment extends beyond just products; we offer unparalleled engineering expertise and exceptional after-sales support to ensure your utmost satisfaction.
Bingyan is your comprehensive partner, offering an all-encompassing suite of services from initial sales and innovative design to precise construction and attentive after-sales support.
1. Our dedicated sales team is adept at understanding and pinpointing your specific needs, ensuring that your exact intentions are communicated effectively. We maintain a seamless line of communication, forging lasting relationships with our clients.
2. The design department excels in offering expert and practical engineering advice. We specialize in crafting bespoke refrigeration plans that are not only reliable but also perfectly aligned with your unique requirements.
3. Our engineering department approaches each construction phase with precision and dedication, meticulously completing every task. We aim for nothing short of excellence, crafting high-quality projects that stand the test of time.
4. Always vigilant and prepared, our after-sales department ensures your ongoing success and provides peace of mind with our responsive and proactive support services.
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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