NH3/CO2 Cascade Refrigeration System
1. NH3/CO2: The Innovative Principle of Cascade Refrigeration System
The NH3/CO2 cascade refrigeration system, a marvel of engineering, consists of two distinct stages: the high-temperature stage and the low-temperature stage. NH3 serves as the refrigerant for the high-temperature stage, while CO2 cools the low-temperature stage. Ingeniously, the evaporation of NH3 within the high-temperature system facilitates the condensation of CO2 gas expelled from the low-temperature system. A condensation evaporator seamlessly links these stages, acting dually as the condenser for the low temperature and the evaporator for high temperature.
In this sophisticated system, the heat load transitions to the CO2 refrigerant via the end evaporator. The heat absorbed by CO2 is then efficiently transferred to the high-temperature NH3 refrigerant through the condensing evaporator, before being ultimately released to the environment via a high-temperature condenser and cooling medium. The condensing evaporator plays a pivotal role by channeling the condensed CO2 into a reservoir, which then proceeds through a dryer filter and throttle valve into a gas-liquid separator. This seamless operation sends liquid CO2 to the evaporator via a circulation pump, ensuring a constant cycle that sustains the entire refrigeration process. Post evaporation, CO2 in its two-phase returns to the gas-liquid separator, where gaseous CO2 is efficiently compressed back into the condensing evaporator, perpetuating the cycle.
The NH3/CO2 cascade refrigeration system distinguishes itself by employing single refrigerant systems at each temperature level. The high-temperature NH3 system mirrors conventional setups, encompassing not just a compressor but also a condenser, liquid storage, gas-liquid separator, and throttling device. Meanwhile, the low-temperature CO2 system features an impressive array of components: a CO2 compressor, a condensing evaporator, a reservoir, a gas-liquid separator, filter dryer, pump, throttling device, evaporator, and an expansion vessel.
The Within the CO2 compression refrigeration setup, the gas-liquid separator is crucial for isolating CO2 gas droplets from the evaporator. This prevents compressor wet strokes, maintains stable liquid levels during pump operations, and manages liquid return during pump halts. If utilized as a non-operational reservoir, the separator must accommodate all CO2 liquid within the system. An auxiliary evaporator is strategically placed atop the separator to counteract excessive CO2 pressure post-shutdown. In this cascade system, the condensing evaporator serves a dual purpose: acting as the NH3-side evaporator and the CO2-side condenser, facilitating efficient heat absorption and CO2 condensation.
2. Unveiling the Advantages of the NH3/CO2 Cascade Refrigeration System
(1) Minimizing NH3 Safety Hazards:
(1.(1)) This advanced NH3/CO2 cascade system impressively curtails NH3's condensing pressure charge to about 1/10 of traditional ammonia systems, enhancing safety.
(1.(2)) NH3 is confined to secured areas like machine rooms, akin to a 'tiger in a cage,' with expert oversight ensuring utmost safety.
(1.(3)) Leveraging NH3's remarkable heat transfer capabilities in high-temperature regions to effectively cool CO2.
(2) CO2's utilization as a medium in densely populated operation rooms and warehouses bolsters personnel and property safety.
073543a1
| 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 |
At Qingdao Bingyan Refrigeration Equipment Co., Ltd., we pride ourselves as leading manufacturers offering personalized solutions tailored specifically to meet your unique requirements. Unsure of which model fits your needs best? Simply reach out and send us a message.Our team boasts a cadre of highly skilled professional engineers dedicated to crafting bespoke solutions that are perfectly aligned with your specifications.
Shandong Binzhou Huiyang Cold Chain Logistics Port
Spanning an impressive 60,542 square meters, this project boasts a total construction space of 72,370.31 square meters. It includes a state-of-the-art production workshop and a vast cold storage area covering 65,538.50 square meters. This facility is a cornerstone for efficient cold chain logistics, ensuring optimal storage and distribution solutions.
Our company's main products are Condensing units,Air Cooler,Evaporative condenser,Freezer,Cold Room Doors,
Cold storage panels, To explore our diverse selection of products, please click on the product name or image.
Qingdao Bingyan Refrigeration Equipment Co., Ltd. Established in 2011 and nestled in the picturesque coastal city of Qingdao, Qingdao Bingyan Refrigeration Equipment Co., Ltd. stands as a beacon of innovation and excellence. We are a high-tech enterprise that brilliantly integrates industrial and commercial freezing, cold storage, as well as comprehensive refrigeration system research, development, design, manufacturing, and sales.
From our inception, we have steadfastly adhered to the principle of 'Science and Technology' as our guiding star, complemented by 'Management' as our steadfast assurance. Our mission is to exceed market demands and elevate customer service by delivering flawless refrigeration system solutions, top-tier products, and unparalleled services to our valued clientele.
We proudly hold more than ten national technology patents, demonstrating our unwavering commitment to advancing high-efficiency, energy-saving, and environmentally friendly refrigeration solutions. Our innovative offerings include high-efficiency refrigeration units, energy-conserving barrel pumps, and cutting-edge PLC intelligent program control boxes, all designed to push the boundaries of modern refrigeration technology.
Our expertise primarily spans the meticulous program design and bespoke customization of equipment for an array of projects including food quick-freezing storage, food cold storage, ultra-low temperature cold storage, medicine storage, fruit and vegetable air-conditioning storage, workshop air conditioning, as well as quick-freezing, freeze-drying, and thawing devices. We are dedicated to crafting solutions that enhance preservation and efficiency at every stage.
At BINGYAN, we are steadfastly devoted to delivering our valued customers with cutting-edge, scientifically grounded refrigeration system solutions. Our commitment extends beyond the initial sale with high-quality engineering and exceptional after-sales services.
Bingyan offers an all-encompassing service suite covering sales, design, construction, and unparalleled after-sales support.
1. Our sales department is adept at precisely understanding and capturing the essence of customer needs. We ensure clear and effective communication, accurately conveying customer intentions to maintain a seamless dialogue with our clients.
2. The design department is dedicated to crafting professional, expert engineering suggestions, tailoring reliable and stable refrigeration solutions meticulously aligned with our customers' specific requirements.
3. Our engineering department approaches each construction phase with seriousness and meticulous attention to detail, consistently striving for excellence to deliver high-quality, superior projects that exceed expectations.
4. The after-sales department is perpetually prepared and on alert, ensuring that our customers' success is continually supported and guaranteed.
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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