NH3/CO2 Cascade Refrigeration System
1. NH3/CO2: The Ingenious Principle of Cascade Refrigeration System
The NH3/CO2 cascade refrigeration system is a marvel of modern engineering, ingeniously divided into two distinct parts: the high-temperature stage and the low-temperature stage. The high-temperature stage operates with NH3 as its refrigerant, while the low-temperature stage uses CO2. Through a seamless integration, the evaporation of NH3 in the high-temperature system efficiently condenses CO2 emitted from the low-temperature stage. A sophisticated condensation evaporator artfully bridges the high and low temperature stages, serving as the condenser for CO2 and the evaporator for NH3.
In this advanced system, the heat load is adeptly transferred to CO2 refrigerant via the end evaporator. This absorbed heat is then conveyed to NH3 refrigerant through the condensing evaporator, which further transfers heat to a high-temperature condenser, subsequently releasing it into the environment through a cooling medium. Following this, the condensed CO2 is stored in the CO2 reservoir and proceeds through the gas-liquid separator via a dryer filter and throttle valve. The CO2 circulation pump then sends liquid CO2 to the evaporator, and after processing, the two-phase CO2 returns to the separator. Gaseous CO2, now in its next stage, is compressed by the compressor back into the condensing evaporator, perpetuating a continuous and efficient cascade refrigeration cycle.
NH3/CO2 cascade refrigeration systems boast a dual-layered structure, each dedicated to a single refrigerant. The high-temperature NH3 system mirrors conventional refrigeration setups, inclusive of a compressor, condenser, liquid storage, and separation and throttling devices. Meanwhile, the low-temperature CO2 system is outfitted with a CO2 compressor, condensing evaporator, reservoir, separator, filter dryer, pump, throttling device, evaporator, and expansion vessel, all working harmoniously to achieve exceptional cooling performance.
The CO2 gas-liquid separator plays a pivotal role in the CO2 compression refrigeration system by separating moisture droplets from CO2 gas, thereby preventing compressor wet stroke and ensuring liquid stability during pump operations. When the pump halts, it adeptly stores end equipment and pipeline liquid. If utilized as a CO2 reservoir, its design ensures capacity to accommodate the entire system's CO2 liquid. Furthermore, an auxiliary evaporator at the top safeguards against excessive CO2 pressure post-shutdown. Within the NH3/CO2 cascade system, the condensing evaporator doubles as the NH3-side evaporator and CO2-side condenser, where the compound liquid skillfully absorbs heat, transforming gaseous CO2 into liquid.
2. Unveiling the Advantages of NH3/CO2 Cascade Refrigeration System
(1) Diminished NH3 Risks:
(1.(1)) The NH3/CO2 cascade system significantly diminishes NH3 charge condensing pressure, reducing it to a mere tenth of what traditional systems would require;
(1.(2)) NH3 is strategically confined to controlled environments like machine rooms, dubbed as the "tiger in a cage," monitored by skilled technicians;
(1.(3)) The system leverages NH3's superior heat transfer qualities in high-temperature zones to effectively cool CO2.
(2) Safe Integration of CO2: CO2's usage extends safely into personnel-dense areas, such as single-freezing machines and warehouses, ensuring both safety and security for people and assets.
5351560a
| 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 leading manufacturers in the industry, Qingdao Bingyan Refrigeration Equipment Co., Ltd. takes pride in tailoring our High-Performance Cold Storage Equipment with Variable Frequency Refrigeration to meet your specific needs. If you're uncertain which model suits your requirements best, feel free to reach out to us for expert guidance.Our team of skilled engineers is at your service, ready to design a bespoke solution that aligns perfectly with your refrigeration needs.
Shandong Binzhou Huiyang Cold Chain Logistics Port
This impressive project spans an expansive 60,542 square meters, and boasts a remarkable total construction area of 72,370.31 square meters. It includes state-of-the-art production workshops alongside a vast cold storage space of 65,538.50 square meters, designed to meet the most demanding requirements of cold chain logistics.
At Qingdao Bingyan Refrigeration Equipment Co., Ltd., we proudly offer a diverse range of cutting-edge products to meet your refrigeration needs: State-of-the-Art Condensing Units,Efficient Air Coolers,Advanced Evaporative Condensers,Premium Freezers,Durable Cold Room Doors,
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Qingdao Bingyan Refrigeration Equipment Co., Ltd. Founded in 2011, nestled in the picturesque coastal city of Qingdao, Qingdao Bingyan Refrigeration Equipment Co., Ltd. is a pioneering force in the realm of industrial and commercial freezing and cold storage. We specialize in the innovative design, meticulous manufacturing, and strategic sales of cutting-edge refrigeration systems and equipment, establishing ourselves as a beacon of high-tech excellence.
Since our inception, we have steadfastly embraced 'science and technology' as our guiding beacon and 'management' as our unwavering anchor, striving to fulfill market demands with precision. Our ultimate mission is to deliver impeccable solutions and services, providing comprehensive refrigeration system solutions and outstanding customer service to consistently exceed expectations.
Our company proudly holds more than ten prestigious national technology patents, reflecting our enduring commitment to advancing high-efficiency, energy-saving, and environmentally sustainable refrigeration systems. Our innovations include sophisticated high-efficiency refrigeration units, energy-conserving barrel pumps, and state-of-the-art PLC intelligent program control boxes, positioning us at the forefront of technological advancement.
We are dedicated to the bespoke design and customization of equipment for a diverse array of projects. Our expertise encompasses food quick-freezing storage, food cold storage, ultra-low temperature facilities, pharmaceutical storage, and fruit and vegetable air-conditioning storage. Additionally, we excel in workshop air conditioning, quick-freezing, freeze-drying, and thawing device solutions, ensuring unparalleled service and precision for our clients.
At BINGYAN, our unwavering commitment is to deliver meticulously crafted refrigeration system solutions that are both scientific and reasonable. Our dedication extends beyond just systems; we offer unparalleled engineering precision and premium after-sales services to ensure your complete satisfaction.
Bingyan is your one-stop destination for all refrigeration needs. Our comprehensive suite of services spans sales, expert design, precise construction, and dedicated after-sales support, ensuring a seamless experience at every stage.
1. Our Sales Department excels in precisely discerning customer needs, effectively conveying intentions, and maintaining robust and seamless communication. We prioritize understanding and collaboration to ensure every project meets your expectations.
2. The Design Department offers expertly crafted solutions, providing professional and tailored engineering advice. We meticulously design reliable and stable refrigeration plans that align with your specific requirements.
3. Our Engineering Department approaches each project with precision and care, meticulously executing every task. With a commitment to excellence, we aim to deliver outstanding, high-quality projects that exceed expectations.
4. Our After-Sales Department is perpetually ready and attentive, poised to guarantee your success with prompt and effective support whenever needed.
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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