NH3/CO2 Cascade Refrigeration System
1. NH3/CO2: Understanding the Principle of the Cascade Refrigeration System
The NH3/CO2 cascade refrigeration system is ingeniously crafted with two distinct phases: a high-temperature stage utilizing NH3 as the refrigerant and a low-temperature stage with CO2. The brilliance of this system lies in the evaporation of NH3 at high temperatures, which effectively condenses the CO2 gas emitted from the low-temperature stage. At the core of this process is the condensation evaporator, a dual-purpose marvel serving as a condenser for the low-temperature phase and an evaporator for the high-temperature phase.
In this sophisticated system, the heat load is deftly transferred to the CO2 refrigerant through the end evaporator. The CO2 absorbs heat, which is then channeled to the high-temperature NH3 refrigerant using the condensing evaporator. This NH3 refrigerant disperses heat to a high-temperature condenser, releasing it into the environment via a cooling medium. Meanwhile, condensed CO2 moves to a reservoir and proceeds through a dryer filter and throttle valve to a gas-liquid separator, before being pumped to a CO2 evaporator. The cycle involves CO2 returning in a two-phase form to the gas-liquid separator, with gaseous CO2 compressed by the compressor into the condensing evaporator, perpetuating the seamless cascade refrigeration cycle.
In the cascade refrigeration system using NH3/CO2, both high and low-temperature levels are expertly designed as standalone refrigeration systems with singular refrigerants. The high-temperature NH3 system mirrors conventional systems, encompassing not just a compressor but also a condenser, liquid storage, gas-liquid separator, and throttling mechanism. Meanwhile, the low-temperature CO2 system is equally comprehensive, featuring a CO2 compressor, condensing evaporator, reservoir, gas-liquid separator, filter dryer, pump, and additional components like a throttling device, evaporator, and expansion vessel.
The The CO2 gas-liquid separator is an essential component, expertly designed to isolate CO2 gas droplets emerging from the evaporator in the CO2 compression refrigeration system. It plays a vital role in preventing the compressor's wet stroke, stabilizing the liquid level during pump operation, and efficiently managing liquid return when the pump halts. If this separator acts as a CO2 reservoir while idle, its capacity must accommodate all system CO2 liquid. Additionally, an auxiliary evaporator atop the separator guards against excessive CO2 pressure post-shutdown. Within the NH3/CO2 cascade system, the condensing evaporator doubles as the NH3 side evaporator and the CO2 side condenser, elegantly facilitating compound liquid evaporation and heat absorption in its tube, while the CO2 gas seamlessly condenses into liquid form in the shell.
2. The Remarkable Advantages of the NH3/CO2 Cascade Refrigeration System
(1) Enhanced Safety with Reduced NH3 Risks:
(1.(1)) The NH3/CO2 cascade refrigeration system significantly lowers the condensing pressure of NH3 refrigerant, achieving a reduction to nearly 1/10 of traditional ammonia systems;
(1.(2)) NH3 is confined to secure machine rooms or equipment chambers, akin to a 'tiger in a cage', under the vigilant watch of skilled technicians;
(1.(3)) This system maximizes NH3's exceptional heat transfer capabilities in high-temperature zones, efficiently cooling the CO2.
(2) Ensuring Safety in Personnel-Dense Environments: CO2 serves as the medium in operational areas and storage facilities, safeguarding both personnel and assets.
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| 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 proud manufacturer, Qingdao Bingyan Refrigeration Equipment Co., Ltd. stands ready to tailor our offerings to precisely meet your needs. Should you find yourself uncertain about the ideal model for your requirements, please feel free to send us a message. Our dedicated team is eager to assist and guide you through the selection process.Our team boasts several highly skilled engineers, each committed to crafting a bespoke solution tailored exclusively for you. Trust in our expertise to deliver the perfect fit for your refrigeration needs.
Shandong Binzhou Huiyang Cold Chain Logistics Port
The ambitious project unfolds across an impressive 60,542 square meters, boasting a total construction area of 72,370.31 square meters. This includes state-of-the-art production workshops alongside a cold storage area that spans 65,538.50 square meters, perfectly designed to meet modern logistical demands.
At Qingdao Bingyan Refrigeration Equipment Co., Ltd., we proudly present our core offerings: High-Efficiency Condensing Units,Advanced Air Coolers,Innovative Evaporative Condensers,Versatile Freezers,Durable Cold Room Doors,
Robust Cold Storage Panels, For a deeper dive into our offerings, click on any product name or image to discover more.
Qingdao Bingyan Refrigeration Equipment Co., Ltd. Established in 2011 and nestled in the picturesque coastal landscape of Qingdao, Qingdao Bingyan Refrigeration Equipment Co., Ltd. stands as a powerhouse in the realm of industrial and commercial freezing, cold storage, and comprehensive refrigeration systems. As a high-tech enterprise, we seamlessly integrate research, design, manufacturing, and sales, delivering top-tier refrigeration solutions that set industry standards.
From its very inception, our company has been driven by the mantra of 'science and technology' as our beacon, with 'management' as our steadfast anchor to cater to market demands and elevate customer service. Our mission is to deliver flawless refrigeration system solutions, along with unparalleled products and services that surpass customer expectations.
With over ten prestigious national technology patents, our company is committed to the relentless pursuit of innovation. We focus on developing high-efficiency, energy-saving, and eco-friendly refrigeration systems, crafting state-of-the-art refrigeration units, energy-efficient barrel pumps, and advanced PLC intelligent program control boxes, all designed to propel the industry forward.
Our expertise primarily lies in the specialized program design and bespoke equipment customization for a diverse range of projects. These include food quick-freezing storage, food cold storage, ultra-low temperature cold storage, pharmaceutical storage, fruit and vegetable air-conditioning storage, workshop air conditioning systems, quick-freezing and freeze-drying technologies, and advanced thawing devices, ensuring we cover a comprehensive spectrum of refrigeration needs.
BINGYAN IS STEADFAST IN ITS DEDICATION TO DELIVERING SCIENTIFICALLY BACKED, REASONABLY DESIGNED REFRIGERATION SYSTEM SOLUTIONS TO OUR CUSTOMERS. WE PRIDE OURSELVES ON PROVIDING HIGH-CALIBER ENGINEERING COUPLED WITH EXEMPLARY AFTER-SALES SERVICES.
At Bingyan, we offer a suite of comprehensive services that encompass sales, meticulous design, flawless construction, and unparalleled after-sales support.
1. Our sales department excels in astutely comprehending and addressing the specific needs of our customers, ensuring that every intention is clearly communicated and fostering close-knit, effective dialogues.
2. The design department offers customers expert, tailored engineering advice, crafting reliable and stable refrigeration plans precisely aligned with each customer's unique requirements.
3. Our engineering department approaches every phase of construction with meticulous attention to detail, relentlessly pursuing excellence to deliver superior-quality projects that stand the test of time.
4. Our after-sales department remains vigilant and ready at all times to ensure that every customer's success is guaranteed and supported without compromise.
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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