NH3/CO2 Cascade Refrigeration System
1. The Principles of the NH3/CO2 Cascade Refrigeration System
Our NH3/CO2 cascade refrigeration system is ingeniously designed with two distinct stages: the high temperature stage and the low temperature stage. In this innovative setup, NH3 serves as the refrigerant for the high temperature stage, while CO2 is utilized for the low temperature stage. The brilliance of this system lies in its use of NH3 evaporation at the high temperature level to effectively condense CO2 refrigerant gas discharged from the low temperature level. These two parts are seamlessly connected by a condensation evaporator, which functions dually as the low temperature condenser and the high temperature evaporator.
The heat exchange process is a marvel of engineering. The heat load is absorbed by the CO2 refrigerant via the end evaporator, and subsequently, the heat absorbed by CO2 is transferred to the high-temperature NH3 refrigerant through the condensing evaporator. This NH3 refrigerant then skillfully transfers the heat to the high-temperature condenser, releasing it into the environment with the aid of a cooling medium. The cycle continues as the condensed CO2 exits the condensing evaporator and enters the CO2 reservoir. From there, it passes through a dryer filter and throttle valve, then enters the CO2 gas-liquid separator. Liquid CO2 is propelled to the CO2 evaporator by the CO2 circulation pump. Post-evaporation, the two-phase CO2 returns to the gas-liquid separator, where the gaseous CO2 is compressed and sent back to the condensing evaporator, perpetuating the cycle for uninterrupted refrigeration efficiency.
NH3/CO2 cascade systems are elegantly structured with distinct high and low temperature levels, each operating with a single refrigerant. The high-temperature NH3 refrigeration system mirrors conventional systems with a sophisticated array of components including the refrigeration compressor, condenser, liquid storage, and more. Meanwhile, the low-temperature CO2 system comprises a CO2 compressor, condensing evaporator, reservoir, gas-liquid separator, and additional components like a pump and expansion vessel, ensuring smooth, efficient operations across the board.
The CO2 gas-liquid separator is a crucial component, ingeniously designed to filter out CO2 gas droplets from the evaporator, preventing compressor wet stroke and maintaining a stable liquid level during pump operation. It also efficiently stores pipeline liquid return when the pump ceases operation. When the system is not in use, this separator can act as a reservoir, capable of accommodating the entire CO2 liquid volume. An auxiliary evaporator, positioned atop the gas-liquid separator, effectively prevents excessive CO2 pressure post-shutdown. In this cascade system, the condensing evaporator serves dual roles as both the NH3 evaporator and the CO2 condenser, facilitating seamless phase transition and heat absorption in a single, integrated unit.
2. Advantages of the NH3/CO2 Cascade Refrigeration System
(1) Enhanced Safety with Reduced NH3 Risks:
(1.(1)) The NH3/CO2 cascade system significantly minimizes the condensing pressure of NH3 refrigerant charge, reducing it to about 1/10 of what traditional systems require, thereby enhancing safety and sustainability;
(1.(2)) By confining NH3 to the machine and equipment rooms—akin to a 'tiger' safely caged—it is securely monitored by professional technicians;
(1.(3)) This state-of-the-art system maximizes NH3's excellent heat transfer properties in high-temperature zones to efficiently cool CO2.
(2) CO2 as a Safe Alternative for Occupied Spaces: CO2 is utilized in personnel-heavy areas, such as single-freezing machines and warehouses, ensuring utmost safety for both individuals and property.
2b193935
| 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 premier manufacturer, we offer the unique advantage of customizing our products to perfectly align with your specific requirements. If you're uncertain about which model best suits your needs, please feel free to reach out to us. Our dedicated team is eager to assist and guide you in making the optimal choice.We proudly house a team of highly skilled engineers, ready and equipped to craft a tailored solution that meets your every need. Let their expertise work for you, ensuring a customized approach that delivers exceptional results.
Shandong Binzhou Huiyang Cold Chain Logistics Port
Spanning an impressive 60,542 square meters, this project boasts a substantial total construction area of 72,370.31 square meters. It includes state-of-the-art production workshops and an expansive cold storage area covering 65,538.50 square meters, designed to accommodate high-volume storage with unparalleled efficiency.
Our company's main products are renowned for their exceptional quality and cutting-edge technology. They include: Condensing units, which boast superior energy efficiency and reliability for optimal performance.,Air Coolers, designed to provide powerful cooling while maintaining low energy consumption.,Evaporative condensers, engineered for enhanced heat transfer and reduced energy costs.,Freezers, offering state-of-the-art temperature control for preserved freshness of stored goods.,Cold Room Doors, crafted for durability and efficient insulation to minimize energy loss.,
Cold storage panels, built to provide excellent thermal insulation and structural integrity., For further insights into our innovative product range, please click on the product name or picture to explore more.
Qingdao Bingyan Refrigeration Equipment Co., Ltd. Established in 2011, Qingdao Bingyan Refrigeration Equipment Co., Ltd. is nestled in the scenic coastal city of Qingdao. We are a prestigious high-tech enterprise, seamlessly integrating expertise in industrial and commercial freezing and cold storage systems. Our scope of excellence includes comprehensive research, development, design, manufacturing, and sales of state-of-the-art refrigeration equipment.
Since our founding, we've been guided by the beacon of 'science and technology,' ensuring that our management practices are robust enough to guarantee unparalleled service. Our unwavering commitment is to cater to market demands with precision and to offer our esteemed clients impeccably crafted refrigeration system solutions, top-tier products, and exemplary services.
Boasting over ten national technology patents, our company is perennially devoted to pioneering the forefront of high-efficiency, energy-saving, and eco-friendly refrigeration system configurations. Our innovative offerings include cutting-edge high-efficiency refrigeration units, energy-conserving barrel pumps, and sophisticated PLC intelligent program control boxes.
Our expertise shines in program design and bespoke equipment customization for a diverse array of projects. These include food quick-freezing storage, food cold storage, ultra-low-temperature cold storage, pharmaceutical storage, fruit and vegetable air-conditioning storage, factory air conditioning, quick-freezing and freeze-drying, as well as advanced thawing devices.
BINGYAN IS DEDICATED TO DELIVERING CUSTOMERS WITH SCIENTIFICALLY ADVANCED AND WELL-REASONED REFRIGERATION SYSTEM SOLUTIONS, COUPLED WITH PREMIUM ENGINEERING AND EXEMPLARY AFTER-SALES SERVICES.
Bingyan offers an all-encompassing suite of services including precise sales, innovative design, expert construction, and comprehensive after-sales service.
1. Our sales department excels at understanding and fully comprehending customer needs, accurately reflecting customer intentions. We uphold open, continuous communication with our clients, ensuring seamless collaboration.
2. The design department crafts tailored engineering solutions, offering professional and meticulous advice. We design reliable and robust refrigeration plans perfectly aligned with each customer's specific needs.
3. Our engineering department meticulously attends to every detail of the construction process, executing each task with precision. We aim for perfection, producing projects of unrivaled quality.
4. The after-sales department remains vigilant and ever-prepared, ensuring our customers' ongoing success and satisfaction.
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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