NH3/CO2 Cascade Refrigeration System
1. NH3/CO2: The Innovative Principle of Cascade Refrigeration Systems
The NH3/CO2 cascade refrigeration system is ingeniously designed with two distinctive stages: a high-temperature stage utilizing NH3 as the refrigerant, and a low-temperature stage employing CO2. In this intricate system, the evaporation of refrigerant NH3 in the high-temperature stage is pivotal for condensing the CO2 refrigerant gas emanating from the low-temperature stage. This seamless transition is facilitated by a sophisticated condensation evaporator, which intricately connects the high and low-temperature levels, serving dual functions as both the condenser of the low-temperature level and the evaporator of the high-temperature level.
The thermal energy is masterfully transferred to the CO2 refrigerant via the end evaporator, and the absorbed heat is then efficiently relayed to the NH3 refrigerant in the high-temperature stage through the condensing evaporator. This high-temperature NH3 refrigerant subsequently disperses the heat to the high-temperature condenser, which releases it into the surrounding environment via a cooling medium. The condensed CO2 within the condensing evaporator advances to the CO2 reservoir, and thereafter, it travels through a series of components including a dryer filter and throttle valve, reaching the CO2 gas-liquid separator. From here, the liquid CO2 is propelled to the CO2 evaporator through a circulation pump, lacking additional end cooling devices like single freezers or chillers. Post-evaporation, the two-phase CO2 is directed back to the gas-liquid separator, and the gaseous CO2 is compressed by the compressor into the condensing evaporator. This meticulously planned cycle repeats itself, completing a full cascade refrigeration cycle.
NH3/CO2: Within this cascade refrigeration marvel, the high and low-temperature levels are distinct refrigeration systems each utilizing a singular refrigerant. The equipment is thoughtfully divided into two segments: the high-temperature NH3 refrigeration system mirrors a conventional system, incorporating crucial components such as refrigeration compressors, condensers, liquid storage, gas-liquid separators, and throttling devices. On the other hand, the low-temperature CO2 refrigeration segment comprises a CO2 compressor, condensing evaporator, reservoir, gas-liquid separator, filter dryer, pump, throttling device, evaporator, and expansion vessel, orchestrating an advanced refrigeration symphony.
The The CO2 gas-liquid separator is expertly designed to segregate CO2 gas droplets emerging from the evaporator in the CO2 compression refrigeration system, preventing wet strokes in the compressor. It ensures a stable liquid level when the pump operates and accommodates the liquid return from terminal equipment and pipelines when the pump ceases operation. If utilized as a CO2 reservoir during non-operation periods, its volume must accommodate the system's entire CO2 liquid capacity. Simultaneously, the auxiliary evaporator, strategically placed atop the gas-liquid separator, effectively prevents potential CO2 pressure surges post-shutdown. In the NH3/CO2 cascade refrigeration configuration, the condensing evaporator skillfully doubles as the NH3 side evaporator and the CO2 side condenser, facilitating the evaporation of compound liquids which absorb heat within the tube, while CO2 gas undergoes condensation into a liquid within the shell.
2. Unveiling the Advantages of the NH3/CO2 Cascade Refrigeration System.
(1) Enhanced Safety with Reduced NH3 Risks:
(1.(1)) The NH3/CO2 cascade refrigeration system markedly diminishes the condensing pressure associated with the NH3 refrigeration medium by approximately one-tenth compared to traditional ammonia systems, revolutionizing safety measures.
(1.(2)) NH3 is meticulously confined to the machine and equipment rooms, akin to a "tiger" securely housed in a "cage", under the vigilant supervision of professional and technical experts.
(1.(3)) This innovation leverages NH3's superior heat transfer properties in high-temperature zones to efficiently cool CO2.
(2) CO2: A Safe Medium for Occupied Rooms, Including Single Freezing Units and Warehouses, Safeguarding Personnel and Property Alike.
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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 leading manufacturer, we specialize in crafting tailored product solutions to perfectly meet your unique specifications. If you're unsure which model aligns best with your needs, feel free to send us a message, and we'll guide you to the perfect fit.Our team comprises several highly skilled engineers, dedicated to devising a bespoke solution that caters precisely to your requirements.
Shandong Binzhou Huiyang Cold Chain Logistics Port
This ambitious project spans an impressive 60,542 square meters, boasting a total construction area of 72,370.31 square meters. It features a comprehensive production workshop and a vast cold storage area that encompasses a remarkable 65,538.50 square meters.
At Qingdao Bingyan Refrigeration Equipment Co., Ltd., we proudly present a diverse range of state-of-the-art refrigeration solutions, including: Highly Efficient Condensing Units,Advanced Air Coolers for Optimal Performance,Innovative Evaporative Condensers,Robust and Reliable Freezers,Secure and Durable Cold Room Doors,
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Qingdao Bingyan Refrigeration Equipment Co., Ltd. Founded in 2011 in the picturesque coastal city of Qingdao, Qingdao Bingyan Refrigeration Equipment Co., Ltd. stands as a beacon of innovation and expertise in the realm of industrial and commercial freezing. We are a high-tech enterprise that seamlessly integrates the design, research and development, manufacturing, and sales of refrigeration systems and equipment, with a dedication to excellence and cutting-edge technology.
Since our establishment, we have been driven by the principles of "science and technology" as our guiding star and "management" as our unwavering assurance. Our mission is to meet the evolving market demands by delivering impeccable customer service and providing comprehensive refrigeration system solutions tailored to our clients' needs. Our commitment to excellence in products and services remains our foremost goal.
Our company proudly holds over ten national technology patents and is steadfastly devoted to pioneering the development of high-efficiency, energy-saving, and environmentally friendly refrigeration systems. Our innovations include high-efficiency refrigeration units, energy-saving barrel pumps, and advanced PLC intelligent program control boxes, all contributing to our reputation as leaders in the industry.
Qingdao Bingyan excels in the program design and equipment customization for a diverse array of projects. We cater to industries requiring food quick-freezing storage, food cold storage, ultra-low temperature cold storage, and medicine storage. Our expertise extends to fruit and vegetable air-conditioning storage, workshop air conditioning, quick-freezing and freeze-drying processes, as well as thawing devices. Each solution is crafted to meet the specific requirements of our clients, ensuring optimal performance and reliability.
At Bingyan, we are unwaveringly devoted to delivering scientifically-backed and meticulously crafted refrigeration system solutions to our valued customers. Our commitment extends beyond merely providing solutions; we ensure high-caliber engineering excellence and unparalleled after-sales services.
Bingyan offers an all-encompassing suite of services that span sales, innovative design, expert construction, and dedicated after-sales support, all tailored to meet the specific needs of each client.
1. Our sales department excels in meticulously understanding and capturing the unique needs of our clients. We ensure precise communication of customer intentions, maintaining seamless and close communication to forge strong and trustworthy relationships.
2. The design department is dedicated to offering expert engineering insights. We craft professional and tailored refrigeration plans that are both reliable and stable, precisely meeting the diverse needs of our customers.
3. Our engineering department approaches every construction process with utmost seriousness. We meticulously manage every project detail, striving for perfection to ensure the creation of top-tier, high-quality projects that stand the test of time.
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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.
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A: Sure,welcome to you visit our factory at any time.
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A: Within 60 days after we confirm you requirement.
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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.
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A: Usually we quote within 24 hours after we get your inquiry.
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A: We can provide shipping by sea, by air and by express.
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