NH3/CO2 Cascade Refrigeration System
1. NH3/CO2: The Ingenious Principle Behind the Cascade Refrigeration System
The NH3/CO2 cascade refrigeration system is a sophisticated synergy of two distinct temperature stages: the high-temperature stage utilizing NH3 as the refrigerant, and the low-temperature stage employing CO2. The brilliance of this design lies in the evaporation process of NH3 in the high-temperature system, which efficiently condenses the CO2 gas emitted from the low-temperature level. Bridging these two stages is the remarkable condensation evaporator, functioning as the condenser for the low temperature and the evaporator for the high temperature.
In this intricate system, heat load is expertly transferred to the CO2 refrigerant through the terminal evaporator. The absorbed heat by CO2 then seamlessly transitions to the high-temperature NH3 refrigerant via the condensing evaporator. Subsequently, the NH3 refrigerant relinquishes its heat to the high-temperature condenser, releasing it gracefully into the environment through a cooling medium. The CO2, now condensed in the condensing evaporator, finds its way into the CO2 reservoir before traveling through a dryer filter and throttle valve to the CO2 gas-liquid separator. Liquid CO2 is then propelled by a circulation pump to the CO2 evaporator. Post evaporation, the CO2 returns in a two-phase state to the gas-liquid separator, where the gaseous CO2 is compressed by the compressor into the condensing evaporator, perpetuating the entire cascade refrigeration cycle with elegance and precision.
In the NH3/CO2 cascade refrigeration system, each temperature level operates as a standalone refrigeration system with its dedicated refrigerant. The high-temperature NH3 refrigeration system mirrors traditional setups but boasts additional components like the condenser, liquid storage, and throttling device. Meanwhile, the low-temperature CO2 refrigeration system features an array of sophisticated components including a CO2 compressor, condensing evaporator, reservoir, gas-liquid separator, filter dryer, pump, throttling device, evaporator, and expansion vessel, all working in harmony to ensure optimal performance.
The CO2 Gas-Liquid Separator: This essential component plays a pivotal role in isolating CO2 gas droplets from the evaporator in the CO2 compression refrigeration system. By averting the peril of the compressor's wet stroke, it ensures a stable liquid level during pump operations, while adeptly storing the return liquid from end equipment and pipelines when the pump is idle. When serving as a CO2 reservoir during inactivity, its volume is meticulously designed to accommodate the system's entire CO2 liquid. Additionally, an auxiliary evaporator atop the gas-liquid separator serves as a safeguard against excessive CO2 pressure post-shutdown. Within the NH3/CO2 cascade refrigeration system, the condensing evaporator simultaneously performs dual roles: acting as the NH3 side's evaporator and the CO2 side's condenser, where the compound liquid elegantly evaporates and captures heat within the tube, and CO2 gas transitions into a liquid form within the shell.
2. Unveiling the Advantages of the NH3/CO2 Cascade Refrigeration System
(1) Elevating Safety by Reducing NH3 Risks:
(1.(1)) The NH3/CO2 cascade refrigeration system ingeniously minimizes the condensing pressure of the NH3 refrigerant charge to a mere 1/10th of traditional ammonia systems, significantly enhancing safety.
(1.(2)) NH3 is deftly confined within the machine and equipment rooms, akin to a "tiger" kept securely "in a cage," vigilantly overseen by expert technical personnel.
(1.(3)) The system fully leverages the excellent heat transfer properties of NH3 in the high-temperature region, effectively utilizing it to cool CO2.
(2) With CO2 employed as a medium in personnel-dense areas such as single-freezing machines and warehouses, the system guarantees 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 distinguished manufacturer, Qingdao Bingyan Refrigeration Equipment Co., Ltd. takes pride in offering bespoke customization services to perfectly fit your unique requirements. If you are uncertain about the model best suited for your needs, we warmly invite you to reach out to us for expert guidance.Our team is comprised of highly skilled professional engineers who are dedicated to crafting a tailor-made solution that meets the specific demands of your project.
Shandong Binzhou Huiyang Cold Chain Logistics Port: A Hub of Refrigeration Excellence
This groundbreaking project spans an impressive 60,542 square meters, featuring a total construction area of 72,370.31 square meters. Within this expansive facility, you'll find a production workshop and a state-of-the-art cold storage area, which alone takes up a substantial 65,538.50 square meters, tailored for top-notch industrial refrigeration needs.
Our company's main products are Condensing units,Air Cooler,Evaporative condenser,Freezer,Cold Room Doors,
Cold storage panels, For a more detailed exploration of our extensive range of products, please click on the product name or image to discover more about each offering.
Qingdao Bingyan Refrigeration Equipment Co., Ltd. Established in 2011 in the picturesque coastal city of Qingdao, Qingdao Bingyan Refrigeration Equipment Co., Ltd. embodies a nexus of innovation in industrial and commercial freezing solutions. We specialize in cutting-edge refrigeration systems, bringing together research, development, design, manufacturing, and sales into a seamless high-tech enterprise.
From our inception, Qingdao Bingyan has been driven by the guiding light of 'science and technology,' with robust 'management' as our backbone. Our mission is to stay ahead of market needs, providing exceptional customer service, and delivering comprehensive refrigeration solutions that exceed expectations.
With a treasure trove of over ten national technology patents, our company is dedicated to pioneering high-efficiency, energy-saving, and eco-friendly refrigeration systems. Our portfolio includes advanced refrigeration units, energy-saving barrel pumps, and the sophisticated PLC intelligent program control box, all designed to elevate our clients' experiences.
We excel in customizing program designs and equipment setups for a diverse array of projects. Our expertise spans from food quick-freezing and cold storage to ultra-low temperature environments, medicine storage, and fruit and vegetable air-conditioning. Whether it's workshop climate control, quick-freezing, freeze-drying, or thawing devices, Qingdao Bingyan is your trusted partner.
BINGYAN IS RELENTLESSLY DEDICATED TO DELIVERING CUSTOMERS CUTTING-EDGE, SCIENTIFICALLY-BACKED REFRIGERATION SYSTEM SOLUTIONS. WITH OUR UNWAVERING COMMITMENT TO SUPREME ENGINEERING AND EXCEPTIONAL AFTER-SALES SUPPORT, WE STRIVE FOR PERFECTION IN EVERY INTERACTION.
Bingyan offers an all-encompassing array of services, including expert sales guidance, innovative design solutions, meticulous construction, and unparalleled after-sales service, ensuring a seamless customer experience from start to finish.
1. Our sales department is expertly trained to discern and comprehend customer needs with precision. We ensure that customer intents are conveyed with absolute clarity, maintaining an open line of communication that fosters a strong and enduring relationship.
2. The design department stands ready to provide customers with insightful and pragmatic engineering advice. We craft bespoke, dependable refrigeration plans tailored specifically to meet and exceed unique customer requirements.
3. Our engineering department approaches every construction process with meticulous attention to detail, executing each task with an unwavering commitment to excellence. We strive to deliver high-quality projects that reflect our dedication to craftsmanship.
4. The after-sales department remains perpetually prepared and vigilant, ready to step in and guarantee our customers' success. Our commitment to outstanding support ensures peace of mind long after the initial purchase.
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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