NH3/CO2 Cascade Refrigeration System
1. Unveiling the NH3/CO2 Cascade Refrigeration System
The NH3/CO2 cascade refrigeration system is an innovative solution that brilliantly combines two distinct refrigeration stages: the high-temperature stage, where NH3 serves as the refrigerant, and the low-temperature stage, utilizing CO2. In this seamless system, the NH3 refrigerant in the high-temperature stage evaporates to efficiently condense the CO2 refrigerant gas from the low-temperature stage. A condensation evaporator artfully bridges the two stages, performing dual roles as both the high-temperature evaporator and the low-temperature condenser.
At the heart of this system, the heat load is delicately transferred to the CO2 refrigerant via the end evaporator. The CO2 refrigerant absorbs the heat, which is then conveyed to the high-temperature NH3 refrigerant through the condensing evaporator. This NH3 refrigerant, now imbued with heat, passes it on to a high-temperature condenser, which efficiently releases it into the environment using a cooling medium. Once condensed, the CO2 moves from the condensing evaporator to a CO2 reservoir, then travels through a dryer filter and throttle valve into a CO2 gas-liquid separator. The liquid CO2 is propelled to the CO2 evaporator by a circulation pump, where it returns in a two-phase state to the separator. The gaseous CO2 is compressed by the compressor and cycled back to the condensing evaporator, completing this efficient and dynamic cascade refrigeration cycle.
Within the NH3/CO2 cascade refrigeration system, each stage is a marvel of engineering, utilizing single refrigerants for dedicated cooling tasks. The high-temperature NH3 system mirrors traditional setups, including not just the refrigeration compressor but also a suite of components such as the condenser, liquid storage, gas-liquid separator, and throttling device. The low-temperature CO2 system is equally comprehensive, featuring a CO2 compressor, condensing evaporator, reservoir, gas-liquid separator, filter dryer, pump, throttling device, evaporator, and an expansion vessel, all working harmoniously to ensure optimal refrigeration performance.
The The CO2 gas-liquid separator plays a crucial role in the CO2 compression refrigeration system, expertly separating CO2 gas droplets post-evaporation to prevent compressor wet stroke and maintain stable liquid levels during pump operation. It also serves as a reservoir when idle, with a capacity to contain the entire system's CO2 liquid. Additionally, an auxiliary evaporator atop the separator effectively curtails excess CO2 pressure post-shutdown. In this NH3/CO2 cascade configuration, the condensing evaporator doubles as both the NH3-side evaporator and CO2-side condenser, facilitating compound liquid evaporation and heat absorption while CO2 gas condenses into liquid.
2. Key Advantages of the NH3/CO2 Cascade Refrigeration System
(1) Enhancing Safety by Reducing NH3 Risks:
(1.(1)) The NH3/CO2 cascade system significantly lowers the condensing pressure of the NH3 refrigerant charge, reducing it to about 1/10th of the traditional ammonia systems, enhancing safety and reliability.
(1.(2)) NH3 is strategically confined to machine and equipment rooms, akin to a 'tiger in a cage,' vigilantly monitored by skilled professionals to ensure safety.
(1.(3)) Maximum utilization of NH3's superior heat transfer capabilities in high-temperature zones to effectively cool CO2, optimizing performance.
(2) Utilizing CO2 as a medium in high-traffic operation areas like single freezers and warehouses, ensuring the utmost safety for 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, we pride ourselves on our ability to tailor-make products that meet your exact specifications. Unsure which model fits your needs perfectly? Simply reach out to us, and we'll guide you through the selection process.Our team of highly skilled engineers stands ready to craft a bespoke solution that perfectly aligns with your unique requirements.
Showcasing the Shandong Binzhou Huiyang Cold Chain Logistics Port
This ambitious project spans an impressive 60,542 square meters, featuring a total construction expanse of 72,370.31 square meters. It encompasses state-of-the-art production workshops and a sprawling cold storage area, covering a vast 65,538.50 square meters.
Our company's main products proudly include a range of high-performance and reliable refrigeration solutions: Condensing units - Efficiently engineered for optimal performance and energy savings in industrial settings,Air Coolers - Designed to deliver unparalleled cooling with superior air distribution and low noise,Evaporative condensers - Innovative technology to ensure maximum cooling capacity and efficiency,Freezers - Robust and dependable, ideal for preserving the freshness of your products,Cold Room Doors - Durable and insulating, keeping your cold storage secure and energy-efficient,
Cold storage panels - Versatile and sturdy, offering excellent thermal insulation for your storage needs, To explore more product details or view exciting visuals, simply click on the product name or picture. Discover quality and innovation with each selection.
Qingdao Bingyan Refrigeration Equipment Co., Ltd. Established in 2011 in the picturesque coastal city of Qingdao, Qingdao Bingyan Refrigeration Equipment Co., Ltd. is a distinguished high-tech enterprise. We specialize in the innovation, development, design, manufacturing, and sales of cutting-edge industrial and commercial refrigeration systems, as well as state-of-the-art freezing and cold storage solutions.
From the very beginning, our company has been driven by the guiding principle of leveraging 'science and technology' to spearhead innovation. 'Management' remains our steadfast guarantee as we strive to meet market demands and deliver unparalleled customer service, offering comprehensive refrigeration system solutions, superior products, and exceptional services to our valued clients.
With an impressive portfolio of over ten national technology patents, Qingdao Bingyan is at the forefront of research and development. Our focus is on creating high-efficiency, energy-saving, and environmentally conscious refrigeration configurations. Our product lineup includes advanced high-efficiency refrigeration units, energy-efficient barrel pumps, and intelligent PLC-controlled program boxes, among others.
Our expertise primarily lies in the tailored program design and equipment customization for various projects. These include food quick-freezing storage, food cold storage, ultra-low temperature facilities, pharmaceutical storage, and air-conditioned storage for fruits and vegetables. We also cater to workshop air conditioning, quick-freezing, freeze-drying, and thawing device requirements, ensuring optimal solutions for each unique application.
BINGYAN IS DEDICATED TO DELIVERING CUSTOMERS SCIENTIFIC, LOGICAL, AND INNOVATIVE REFRIGERATION SYSTEM SOLUTIONS, ALONG WITH SUPERIOR ENGINEERING AND EXCEPTIONAL AFTER-SALES SERVICES.
Bingyan extends a full spectrum of services, encompassing sales, meticulous design, expert construction, and unparalleled after-sales support.
1. Our sales department precisely identifies and understands customer requirements, ensuring an accurate relay of customer intentions and fostering close-knit communication channels for seamless interaction.
2. The design department offers expertly crafted and sound engineering recommendations, tailoring reliable and stable refrigeration plans meticulously to meet customer-specific needs.
3. The engineering department approaches every construction process with precision, completing every task with dedication, and striving for perfection to deliver projects of superior quality.
4. Our after-sales department remains perpetually prepared and on high alert, ensuring the success and satisfaction of our valued customers.
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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