CO2 Condensing Unit for Effective Cold Storage and Processing

• Customization: Available
• Cooling System: Water Cooling
• Power Source: AC Power
• Installation Type: Stationary Type
• Performance: Low Noise, Variable Frequency, Explosion-Proof
• Drive Mode: Electric
• After Sales Service: Engineers Can Go Overseas for Repairs
• Coolant: CO2, Ammonia and Freon
• Temperature: -70~+20deg.C
• Refrigerant: R717;R507;R22;CO2
• Cooling Capacity: 0~18000kw
• Product Certificate: CE RoHS ISO9001 ISO14001
• Usage: Food/Medicine/Chemicals/Workshop
• Condensing Method: Water Cooling
• Compressor Brand: B Itzer, Fusheng, Kobelco etc.
• Model Range: High Temperature to Low Temperature
• Transport Package: Wood Packaging
• Specification: Customized
• Origin: China
• HS Code: 8418692090

Product Description

Product Description

NH3/CO2 Cascade Refrigeration System
1. NH3/CO2: The Principle of Cascade Refrigeration System
The NH3/CO2 cascade refrigeration system is a marvel of engineering, divided into two distinct stages: the high-temperature stage and the low-temperature stage. In this ingenious system, NH3 serves as the refrigerant for the high-temperature stage, while CO2 takes on the role for the low-temperature stage. The process begins as the NH3 refrigerant evaporates at the high temperature level, expertly condensing the CO2 refrigerant gas expelled from the low temperature level. This seamless connection between the two temperature levels is achieved through a condensation evaporator, which ingeniously functions as both the condenser for the low-temperature level and the evaporator for the high-temperature level. It's a testament to efficient and effective cooling technology.

In this sophisticated system, the heat load is transferred to the CO2 refrigerant via the end evaporator. As the CO2 refrigerant absorbs heat, it is then transferred to the high-temperature NH3 refrigerant through the condensing evaporator. The NH3 refrigerant, in turn, transfers this heat to the high-temperature condenser, effectively releasing it to the environment through the cooling medium. The condensed CO2, now in the condensing evaporator, enters the CO2 reservoir, proceeding to the CO2 gas-liquid separator via the dryer filter and throttle valve. Liquid CO2 is propelled to the CO2 evaporator by the CO2 circulation pump, bypassing the need for an end cooling device like a freezer or chiller. Post-evaporation, the two-phase CO2 returns to the gas-liquid separator, where gaseous CO2 is drawn in by the compressor and compressed into the condensing evaporator. This cycle repeats, ensuring a seamless and efficient cascade refrigeration process.

In the NH3/CO2 cascade refrigeration system, the high and low temperature levels operate as individual refrigeration systems, each utilizing a single refrigerant. The structure of the equipment reflects this division as well. The high-temperature NH3 refrigeration system mirrors a conventional setup, comprising not only a refrigeration compressor but also a condenser, liquid storage, a gas-liquid separator, and a throttling device. Meanwhile, the low-temperature CO2 refrigeration system, aside from the CO2 compressor, integrates a condensing evaporator, reservoir, gas-liquid separator, filter dryer, pump, throttling device, evaporator, and expansion vessel. It's a comprehensive and efficient design for optimal performance.

The The CO2 gas-liquid separator is crucial in separating CO2 gas droplets from the evaporator in the CO2 compression refrigeration system. This process helps prevent wet strokes in the compressor and maintains a stable liquid level during pump operation, while also storing the return liquid from end equipment and pipelines when the pump stops. If, when not operational, the gas-liquid separator serves as a CO2 reservoir, its volume must accommodate all the CO2 liquid within the system. Additionally, an auxiliary evaporator positioned atop the gas-liquid separator effectively prevents excessive CO2 pressure post-shutdown. In the NH3/CO2 cascade system, the condensing evaporator impeccably functions as both the NH3 side evaporator and the CO2 side condenser, with compound liquid evaporating to absorb heat within the tube and carbon dioxide gas condensing into liquid form in the shell. This innovative setup ensures efficiency and reliability.

2. Advantages of the NH3/CO2 Cascade Refrigeration System.
(1) Reduced NH3 Safety Concerns:
(1.(1)) The NH3/CO2 cascade refrigeration system significantly minimizes the condensing pressure of the NH3 refrigerant charge, reducing it to about one-tenth of that in traditional ammonia refrigeration systems. This remarkable reduction enhances safety and efficiency.
(1.(2)) NH3 is confined to the machine room and equipment room, akin to a "tiger" securely enclosed in a "cage," watched over by skilled professional and technical personnel, ensuring utmost safety and control.
(1.(3)) This system leverages the excellent heat transfer properties of NH3 in the high-temperature zone to effectively cool CO2, optimizing performance and reliability.
(2) CO2, serving as a medium, is introduced into personnel-intensive operational areas, such as single-freezing machines and warehouses, ensuring the safety of both personnel and property. This strategic use of CO2 enhances the safety profile of operations, providing peace of mind.
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Product Parameters

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

PROJECT DISPLAY

Shandong Binzhou Huiyang Cold Chain Logistics Port
Spanning an impressive 60,542 square meters, this ambitious project is a testament to innovation in logistics. The total construction area reaches a remarkable 72,370.31 square meters, thoughtfully designed to include production workshops and dedicated cold storage spaces covering 65,538.50 square meters.

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Company Profile

Qingdao Bingyan Refrigeration Equipment Co., Ltd. Founded in 2011, Qingdao Bingyan Refrigeration Equipment Co., Ltd. is nestled in the picturesque coastal city of Qingdao. Our company is a beacon of technological innovation, integrating industrial and commercial freezing, cold storage solutions, refrigeration systems, and equipment R&D, design, manufacturing, and sales, all under one roof as a premier high-tech enterprise.

From the very beginning, we have embraced the philosophy of using "science and technology" as our guiding light and "management" as our assurance. Our mission is to outshine in meeting market demands and deliver unrivaled customer service. We are dedicated to offering our clients the most comprehensive and flawless refrigeration system solutions, products, and services available.

Boasting over ten national technology patents, our unwavering commitment lies in the research and development of high-efficiency, energy-saving, and eco-friendly refrigeration systems. Our portfolio includes top-notch refrigeration units, energy-efficient barrel pumps, and advanced PLC intelligent program control boxes, showcasing our dedication to cutting-edge innovation.
Our expertise shines in the design and customization of equipment for an array of projects, including food quick-freezing storage, food cold storage, ultra-low temperature cold storage, medicine storage, and fruit and vegetable air-conditioning storage. We also excel in workshop air conditioning, rapid freezing, freeze-drying, and thawing device solutions, ensuring optimal performance and satisfaction for each unique application.

Our Advantages

BINGYAN IS DEDICATED TO DELIVERING CUTTING-EDGE REFRIGERATION SYSTEM SOLUTIONS THAT ARE BOTH SCIENTIFICALLY SOUND AND REASONABLY PRICED, ENSURING HIGH-QUALITY ENGINEERING AND EXCEPTIONAL AFTER-SALES SERVICES.

Bingyan offers an all-encompassing range of services that includes expert sales, innovative design, precise construction, and superb after-sales support.

1. The Sales Department excels in thoroughly understanding and capturing the nuanced needs of our customers. We ensure accurate transmission of customer intentions and maintain seamless, ongoing communication.
2. Our Design Department offers expert, professional engineering advice. We craft dependable and robust refrigeration plans, precisely tailored to meet the unique needs of each customer.
3. With meticulous attention to detail, our Engineering Department approaches every construction process with the utmost seriousness. We aim for nothing less than excellence in delivering top-tier projects.
4. Always on alert, our After-Sales Department is prepared to provide unwavering support to guarantee our customers' success.

Packaging & Shipping

FAQ

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.