Revolutionary NH3/CO2 Cascade Refrigeration System
1. Innovative Principle of NH3/CO2 Cascade Refrigeration System
NH3/CO2, the cascade refrigeration system ingeniously integrates two distinct temperature stages: the high-temperature stage utilizes NH3 as its refrigerant, while the low-temperature stage leverages CO2. In the high-temperature stage, NH3 evaporates to condense CO2 gas discharged from the low-temperature stage. A sophisticated condensation evaporator bridges these stages, serving as the condenser for the low-temperature stage and the evaporator for the high-temperature stage, ensuring seamless thermal exchange.
Heat load is meticulously transferred to the CO2 refrigerant through the terminal evaporator. The heat absorbed by the CO2 refrigerant is then conveyed to the high-temperature NH3 refrigerant via the condensing evaporator. The high-temperature NH3 refrigerant subsequently releases this heat to the environment via a high-temperature condenser and cooling medium. Condensed CO2 in the condensing evaporator flows into the CO2 reservoir and then proceeds through a dryer filter and throttle valve to the CO2 gas-liquid separator. Liquid CO2 is pumped to the CO2 evaporator, initiating a cycle where, post-evaporation, two-phase CO2 returns to the gas-liquid separator. The gaseous CO2 is compressed back into the condensing evaporator, perpetuating this efficient cascade refrigeration cycle.
NH3/CO2, within the cascade refrigeration framework, operates distinct high and low-temperature refrigeration systems using single refrigerants. The high-temperature NH3 system mirrors conventional refrigeration setups, comprising a refrigeration compressor, condenser, liquid storage, gas-liquid separator, and throttling device. The low-temperature CO2 system includes a CO2 compressor, condensing evaporator, reservoir, gas-liquid separator, filter dryer, pump, throttling device, evaporator, and expansion vessel, showcasing a symbiotic blend of components for optimal performance.
The CO2 gas-liquid separator plays a pivotal role in segregating CO2 gas droplets from the evaporator within the CO2 compression refrigeration system. This prevents compressor wet strokes, stabilizes liquid levels during pump operation, and accommodates liquid returns when the pump ceases. When utilized as a CO2 reservoir during inactivity, its volume must encompass all system-contained CO2 liquid. An auxiliary evaporator atop the separator efficiently mitigates CO2 pressure spikes post-shutdown. In the NH3/CO2 cascade refrigeration ecosystem, the condensing evaporator serves dual roles, functioning as the NH3 side evaporator and CO2 side condenser, wherein the compound liquid's evaporation and carbon dioxide gas's condensation dynamically facilitate heat absorption and fluid transition.
2. Unmatched Advantages of NH3/CO2 Cascade Refrigeration System
(1) Enhanced Safety Measures for NH3:
(1.(1)) The NH3/CO2 cascade refrigeration system dramatically diminishes NH3's condensing pressure, slashing it to about 1/10 of conventional ammonia systems.
(1.(2)) NH3 is restricted to designated machine and equipment rooms, akin to containing a 'tiger' in a 'cage', overseen by skilled professionals.
(1.(3)) This system maximizes NH3's superior heat transfer properties in high-temperature regions to effectively cool CO2.
(2) CO2 is deployed as the medium in personnel-dense operational areas (e.g., single-freezing machines) and storage facilities, ensuring the utmost safety of both personnel and property.
97290a8c
| 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 |
Our company, Qingdao Bingyan Refrigeration Equipment Co., Ltd., proudly offers an expansive collection of innovative products:
High-Efficiency Condensing Units,Advanced Air Coolers,State-of-the-Art Evaporative Condensers,Top-Tier Freezers,Durable Cold Room Doors,
Premium Cold Storage Panels, To discover more about our extensive product lineup, simply click on the product names or images.
Qingdao Bingyan Refrigeration Equipment Co., Ltd. Founded in 2011 in the picturesque coastal city of Qingdao, our company is a premier high-tech enterprise specializing in the comprehensive integration of industrial and commercial freezing, cold storage, and cutting-edge refrigeration systems. Our portfolio spans research and development, design, manufacturing, and sales of advanced refrigeration equipment.
Since its inception, our company has upheld a guiding principle of innovation, driven by 'science and technology' and fortified by 'management excellence.' Our unwavering goal is to meet market demands and offer unparalleled customer service by providing bespoke refrigeration system solutions, superior products, and exceptional services.
With a portfolio boasting over ten national technology patents, we are steadfastly dedicated to the research and development of high-efficiency, energy-saving, and environmentally-friendly refrigeration systems. Our offerings include high-performance refrigeration units, energy-efficient barrel pumps, and PLC intelligent program control boxes, among others.
Our expertise primarily encompasses the design and customization of refrigeration systems for a range of projects, including food quick-freezing storage, cold storage, ultra-low temperature storage, pharmaceutical storage, fruit and vegetable air-conditioning storage, workshop air conditioning, quick-freezing and freeze-drying solutions, and thawing devices.
BINGYAN IS DEDICATED TO DELIVERING CUSTOMERS SCIENTIFICALLY ENGINEERED REFRIGERATION SYSTEM SOLUTIONS, COUPLED WITH SUPERIOR ENGINEERING EXPERTISE AND EXCEPTIONAL AFTER-SALES SUPPORT.
Bingyan offers a full spectrum of services encompassing sales, design, meticulous construction, and reliable after-sales support.
1. Our sales department excels in understanding and pinpointing customer requirements, conveying intentions with precision, and maintaining seamless, clear communication.
2. Our design department provides expert engineering advice and crafts bespoke and stable refrigeration plans tailored to each customer's unique needs.
3. Our engineering department approaches every construction phase with diligence, ensuring meticulous execution to deliver top-tier, high-quality projects.
4. Our after-sales team remains ever-ready and on standby to ensure the continuous success and satisfaction of our customers.
Q:What's your advantage?
A: Our team of professional designers crafts solutions tailored to your unique needs, ensuring the selection of optimal refrigeration equipment. This approach guarantees high cooling efficiency while maximizing energy and power savings.
Q: How strong is your company?
A: Since our inception in 2011, Qingdao Bingyan Refrigeration Equipment Co., Ltd. has developed an expert cold storage design and installation team, along with seasoned after-sales maintenance personnel. We deliver comprehensive cold storage design, installation guidance, and robust after-sales support.
Q:Where are you? Can I visit you?
A: Absolutely! We warmly welcome you to visit our factory at any time.
Q:How about the delivery time?
A: Delivery will be within 60 days after confirming your requirements.
Q:What kind of payment does your company support?
A: Typically, a 30% down payment is made via T/T after confirming the Proforma Invoice (PI), with the balance due after inspection and before shipment. We accept telegraphic transfers and sight letters of credit.
Q: When can I get the price?
A: We usually provide a quote within 24 hours of receiving your inquiry.
Q: Which shipping way can you provide?
A: We offer shipping by sea, air, and express delivery.
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