NH3/CO2 Cascade Refrigeration System
1. NH3/CO2: The Core Principles of the Cascade Refrigeration System
The NH3/CO2 Cascade Refrigeration System is ingeniously designed with two distinct stages: a high-temperature stage that utilizes NH3 as its refrigerant, and a low-temperature stage powered by CO2. At the high-temperature level, NH3 evaporates to effectively condense the CO2 gas, which is expelled from the low-temperature level. A specially designed condensation evaporator seamlessly links these stages, acting as the condenser for the CO2 level and the evaporator for the NH3 level.
Heat load is dynamically transferred to the CO2 refrigerant through the end evaporator, with the heat absorbed by CO2 moving efficiently to the high-temperature NH3 refrigerant via the condensing evaporator. This NH3 refrigerant then disperses the heat to the high-temperature condenser, releasing it to the environment through a cooling medium. The condensed CO2 proceeds into a reservoir, then navigates through a filter and throttle valve to enter the CO2 gas-liquid separator. Liquid CO2 is circulated to the CO2 evaporator, and post-evaporation, the two-phase CO2 returns to the separator. Gaseous CO2 is then compressed into the condensing evaporator, perpetuating the entire refrigeration cycle in an uninterrupted loop.
In the NH3/CO2 Cascade Refrigeration System, both the high and low-temperature stages operate as independent refrigeration systems utilizing a single refrigerant. Each is equipped distinctly: the high-temperature NH3 system mirrors traditional setups with a compressor, condenser, liquid storage, separator, and throttle device, while the low-temperature CO2 system incorporates a compressor, condensing evaporator, reservoir, separator, filter dryer, pump, throttle device, evaporator, and expansion vessel.
The The CO2 gas-liquid separator is meticulously engineered to segregate CO2 gas droplets from the evaporator, preventing compressor wet strokes, maintaining liquid stability during pump operation, and storing liquid returns when the pump halts. When used as a reservoir, its capacity accommodates all system CO2 liquid. An auxiliary evaporator is strategically placed atop the separator to ensure CO2 pressure remains controlled post-shutdown. In this system, the condensing evaporator performs dual roles: as an NH3 evaporator and a CO2 condenser, facilitating heat absorption and condensation within the system.
2. Exceptional Advantages of the NH3/CO2 Cascade Refrigeration System
(1) Minimized NH3 Safety Concerns:
(1.(1)) The NH3/CO2 Cascade System dramatically diminishes NH3 condenser pressure, reducing the ammonia charge to roughly 1/10th of traditional systems;
(1.(2)) NH3 is securely confined within the machine and equipment rooms, akin to a 'tiger' securely 'caged', overseen by skilled professionals;
(1.(3)) This system fully exploits NH3's superior heat transfer properties in high-temperature environments, utilizing it to cool CO2.
(2) CO2 enters personnel-heavy operational areas, such as single-freezing machines and warehouses, ensuring heightened safety for 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 dedicated manufacturer, Qingdao Bingyan Refrigeration Equipment Co., Ltd. offers bespoke solutions tailored to your specific needs. If you're uncertain about the perfect model for your requirements, don't hesitate to reach out to us with a message.Our team of highly skilled engineers is ready to craft a personalized solution that perfectly fits your unique specifications.
Shandong Binzhou Huiyang Cold Chain Logistics Port
Nestled in a sprawling expanse of 60,542 square meters, this project embodies a monumental feat with a total construction area of 72,370.31 square meters. Encompassing a state-of-the-art production workshop and a vast cold storage area of 65,538.50 square meters, it stands as a beacon of innovation and efficiency in cold chain logistics.
Our company's main products are Condensing Units: These are essential components for effective refrigeration, ensuring optimal performance and energy efficiency.,Air Coolers: Designed to deliver powerful cooling, our air coolers are perfect for maintaining consistent temperatures in various environments.,Evaporative Condensers: These units offer superior heat exchange capabilities, ensuring your refrigeration system runs smoothly and efficiently.,Freezers: Built for reliability, our freezers provide optimal preservation for your products, keeping them fresh and safe.,Cold Room Doors: Engineered for durability, our doors offer excellent insulation and seamless accessibility, perfect for all your cold storage needs.,
Cold Storage Panels: These panels are crafted to provide robust insulation and structural integrity for your storage solutions., To explore more about our products, please click on the product name or product image to unveil detailed information and specifications.
Qingdao Bingyan Refrigeration Equipment Co., Ltd. Established in 2011, our company is nestled in the picturesque coastal city of Qingdao. We stand as a distinguished high-tech enterprise, seamlessly integrating industrial and commercial freezing, cold storage, refrigeration system innovation, and the design, manufacturing, and sales of state-of-the-art refrigeration equipment.
From the very beginning, we have been steadfastly committed to leading with 'science and technology' as our guiding light, and 'management' as our assurance. Our unwavering mission is to cater to market demands and provide unparalleled customer service, delivering comprehensive and flawless refrigeration system solutions, products, and services.
Our company proudly holds over ten national technology patents, and we are perpetually dedicated to the research and development of superior, energy-efficient, and eco-friendly refrigeration system configurations. Our offerings include high-efficiency refrigeration units, energy-saving barrel pumps, and PLC intelligent program control boxes, among others.
We excel in the program design and equipment customization for an array of projects, including food quick-freezing storage, cold storage, ultra-low temperature cold storage, pharmaceutical storage, atmospheric fruit and vegetable storage, workshop air conditioning, quick-freezing, freeze-drying, and thawing devices.
At BINGYAN, we pledge to deliver top-tier refrigeration solutions that are both scientifically advanced and perfectly tailored to the specific needs of our clients. Coupled with this, we offer superior engineering services and unparalleled after-sales support, ensuring every customer experiences excellence from start to finish.
Bingyan offers an all-encompassing service portfolio that covers sales, design, construction, and post-sale support, ensuring a seamless and satisfying customer journey.
1. Our sales department is dedicated to thoroughly understanding and capturing the unique needs of each customer. We ensure precise communication and maintain a strong, ongoing dialogue, bridging the gap between customer expectations and delivery with clarity and precision.
2. The design team at Bingyan is equipped to deliver expert, well-founded engineering advice. We craft bespoke, stable, and reliable refrigeration plans that perfectly align with the individual requirements of each client, ensuring sustainability and performance.
3. Our engineering department approaches each construction phase with unparalleled seriousness and precision. We meticulously complete every task, aiming for nothing less than excellence and crafting superior quality projects that stand the test of time.
4. Always at the ready, our after-sales department is on constant standby to guarantee customer success. We provide prompt and effective support, ensuring enduring satisfaction and optimal performance of our products.
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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