NH3/CO2 Cascade Refrigeration System
1. Unveiling the NH3/CO2 Cascade Refrigeration System Principles
The NH3/CO2 cascade refrigeration system is an engineering marvel comprised of two distinct stages: a high temperature stage utilizing NH3 as the key refrigerant, and a low temperature stage where CO2 takes center stage. This system ingeniously uses the evaporation of NH3 in the high temperature phase to effectively condense the CO2 gas emitted from the low temperature phase. A unique condensation evaporator serves as the bridge between the two stages, acting as both the condenser for the CO2 and the evaporator for the NH3, thereby seamlessly integrating both levels of temperature regulation.
In this sophisticated system, the heat load is efficiently transferred to the CO2 refrigerant via the end evaporator. This absorbed heat is then channeled to the high-temperature NH3 refrigerant through the condensing evaporator, which subsequently expels it to the environment through a high-temperature condenser, aided by a cooling medium. The condensed CO2, now in liquid form, makes its way into the CO2 reservoir before passing through the dryer filter and throttle valve to enter the CO2 gas-liquid separator. From here, the liquid CO2 progresses to the CO2 evaporator with the help of a circulation pump. After evaporating, the CO2 returns in two-phase form to the gas-liquid separator, while the gaseous CO2 is drawn into the compressor for compression into the condensing evaporator, perpetuating the cycle of this remarkable refrigeration process.
The NH3/CO2 cascade refrigeration system is brilliantly divided into two separate refrigeration systems: the high-temperature stage is a conventional NH3 system, complete with a refrigeration compressor, condenser, and other key components. Meanwhile, the low-temperature stage boasts a dedicated CO2 refrigeration system, featuring a CO2 compressor, condensing evaporator, reservoir, gas-liquid separator, and more. This dual-system approach ensures efficiency and precision across varying temperature demands, solidifying its stature as a leader in refrigeration technology.
The The CO2 gas-liquid separator plays a pivotal role in the CO2 compression refrigeration system by ensuring the separation of CO2 gas droplets from the evaporator. This function prevents compressor wet strokes, maintains a stable liquid level during pump operation, and accommodates liquid returns when the pump halts. When not operational, the separator can serve as a CO2 reservoir, designed to encapsulate all system CO2 liquid. Additionally, an auxiliary evaporator is strategically placed atop the separator to effectively curtail any pressure surges post-shutdown. Within the NH3/CO2 cascade system, the condensing evaporator skillfully serves dual purposes, acting as the NH3 evaporator and the CO2 condenser, facilitating efficient heat absorption and condensation processes.
2. Exploring the Advantages of the NH3/CO2 Cascade Refrigeration System
(1) Enhancing Safety with Reduced NH3 Risk Factors:
(1.(1)) The NH3/CO2 cascade refrigeration system significantly diminishes the condensing pressure of the NH3 refrigerant charge, reducing it to approximately 1/10th of what is found in traditional ammonia systems, thereby elevating safety standards;
(1.(2)) By confining NH3 to the machine and equipment rooms, akin to a 'tiger in a cage,' it is vigilantly overseen by skilled professionals, ensuring stringent safety protocols;
(1.(3)) The system capitalizes on NH3's superior heat transfer properties in the high-temperature regions, optimizing its efficacy in cooling CO2.
(2) CO2 as a Safe Refrigerant: CO2 is strategically utilized in personnel-rich environments such as single-freezing machines and warehouses, guaranteeing the utmost safety for both people 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 leading manufacturer, we are dedicated to crafting tailored solutions that perfectly align with your specific requirements. If you are uncertain about which model best suits your needs, we warmly invite you to reach out to us with your inquiries.Our team of seasoned professional engineers is at your service, ready to design a bespoke solution that caters exclusively to your unique demands.
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This extraordinary project spans an impressive 60,542 square meters, boasting a total construction area of 72,370.31 square meters. Within this state-of-the-art facility, there is a dedicated production workshop and a vast cold storage area covering 65,538.50 square meters, meticulously designed to cater to your cold chain logistics needs.
At Qingdao Bingyan Refrigeration Equipment Co., Ltd., we specialize in providing cutting-edge solutions in the refrigeration sector. Our main products include: Efficient and Reliable Condensing Units,High-Performance Air Coolers,Advanced Evaporative Condensers,Durable Freezers with Precision,Robust Cold Room Doors,
High-Quality Cold Storage Panels, If you're eager to discover more about our product offerings, we invite you to click on the product name or product picture for detailed information.
Qingdao Bingyan Refrigeration Equipment Co., Ltd. Founded in 2011 and nestled in the picturesque coastal city of Qingdao, our company embodies innovation and excellence. We are a high-tech enterprise that seamlessly integrates industrial and commercial freezing and cold storage, cutting-edge refrigeration systems, and state-of-the-art equipment. From research and development to design, manufacturing, and sales, we deliver comprehensive solutions.
Since our inception, Qingdao Bingyan Refrigeration Equipment Co., Ltd. has been steadfast in our commitment to pioneering 'science and technology' as our guiding principle, while ensuring 'management' as the backbone of our operations. Our mission is clear: to satisfy market demand and offer exceptional customer service, providing flawless refrigeration solutions, outstanding products, and unparalleled services to our valued clients.
With over ten national technology patents, we are devoted to the relentless pursuit of research and development. Our expertise lies in crafting high-efficiency, energy-saving, and environmentally friendly refrigeration system configurations. From high-performance refrigeration units to energy-conserving barrel pumps and PLC intelligent program control boxes, our innovations are setting new standards in the industry.
Our expertise extends to the meticulous program design and bespoke equipment customization for an array of projects. Whether it’s food quick-freezing storage, ultra-low temperature cold storage, pharmaceutical storage, or fruit and vegetable air-conditioning storage, we provide tailored solutions. Our capabilities also include sophisticated workshop air conditioning, quick-freezing and freeze-drying systems, and advanced thawing devices.
BINGYAN IS DEDICATED TO DELIVERING SCIENTIFIC AND REASONABLE REFRIGERATION SYSTEM SOLUTIONS, ALONG WITH TOP-NOTCH ENGINEERING AND EXEMPLARY AFTER-SALES SUPPORT TO OUR CUSTOMERS.
Bingyan offers an all-encompassing suite of services that includes sales, expert design, precise construction, and outstanding after-sales support.
1. Our sales department is adept at precisely understanding and capturing customer requirements, ensuring clear communication of their intentions, and fostering robust customer relationships through continuous engagement.
2. The design department excels at providing our clients with expert and insightful engineering advice, crafting reliable and stable refrigeration plans meticulously tailored to their specific needs.
3. Our engineering department approaches every construction phase with diligence and meticulous attention, executing each task with precision and a commitment to excellence, aspiring to deliver projects of the highest quality.
4. The after-sales department stands perpetually prepared and vigilant, ensuring that our clients achieve success and satisfaction at every step of their journey.
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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