Shenzhen Dejieli Refrigeration Technology Co., Ltd.
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Middle Capacity Liquid Nitrogen Freezer
product description
The liquid nitrogen quick-freezer uses liquid nitrogen as the quick-freezing medium. Liquid nitrogen is a colorless, odorless and non-toxic inert gas that will not react with things that will be exposed during the freezing process. Liquid nitrogen has a fast freezing speed and a safe process, making it the best choice for quick freezing.
Brief introduction
| Equipment material: | Inner and outer cavities of equipment are made of SUS304 stainless steel, durable and non-corrosive. |
| Power distribution: | Distribute according to customer's local voltage |
| Working temperature: | -120℃~ Room temperature |
| Temperature control precision: | ±2℃ |
| Temperature uniformity: | ±3℃ |
| Liquid nitrogen pressure: | 5~10 bar |
| Temperature sensor: | A grade PT100 platinum resistor |
| Insulation of equipment: | 150mm thickness, foam polyurethane insulation, excellent insulation performance |
| Liquid nitrogen control valve:
| Combined control of automatic valve and manual stop valve, equipped with redundant system to ensure adequate safety. |
| Convection circulation:
| The long shaft motor is equipped with a strengthened axial flow fan, with the maximum wind speed up to 10m/s, fast and uniform cooling rate. |
| Electrical control:
| Man-machine interface +PLC, easy to learn input, intuitive and reliable control, with temperature monitoring and alarm functions, electrical interlock, to ensure the safety of equipment and process operation. |
| Equipment maintenance:
| The long-life and low-consumable design, simple and rapid replacement of vulnerable part, excellent maintainability. |
The style change of Ultra Low Temperature Iqf Liquid Nitrogen Freezer Machine Cryogenic Freezing Chamber:
-Single-door cabinet freezer: Applicable to individual quick-freezing (IQF) and tray freezing. It is suitable for internal testing,developing and small-lot production. Small land occupation and low energy consumption.
-Double-door cabinet freezer: It is composed of two boxes, each box can be controlled separately, work alone, convenient for the situation that the quick-frozen food quantity is not full, only need to start one box to work, save the cost of liquid nitrogen. If two boxes are used at the same time, the exhaust gas can be used to precool each other.
-Multi-door cabinet freezer: It is composed of multiple boxes, each box can be controlled separately, work alone, If multiple boxes are used at the same time, the exhaust gas can be used to precool each other.
-Laboratory cabinet freezer: Commonly used in scientific research sites of schools and companies.
For different customers, we can also provide the following services:
FAQ:
1. What is the refrigerant of DJL liquid nitrogen freezer? Is it safe? Do I need to go through any special procedures
The refrigerant used in the DJL liquid nitrogen freezer is liquid nitrogen. Liquid nitrogen is separated from the air by cryogenic air separation technology. It is neutral and non-combustible and non-explosive. However, high concentration of nitrogen should be prevented from causing oxygen deprivation in confined Spaces; In addition, the limbs should not be placed in low temperature for a long time, nor can the limbs be immersed in liquid nitrogen, which will cause frostbite. Relative to others, liquid nitrogen is a relatively safe refrigerant.
It should be noted that when liquid nitrogen storage tank is used, it shall be submitted for approval for filing, which can be generally handled by the liquid nitrogen supplier.
2. What is the dry consumption of liquid nitrogen quick freezing?
For seafood naked freezing with high water content, after froze by DJL liquid nitrogen freezing technology, its dry consumption is about 1‰ to 5‰, while the traditional freezing method is generally within 3~5% . If the product with a relatively high unit price, alarge part of the loss of economic value can be avoided by dry consumption weight.
3. How much is the refrigeration consumption cost of liquid nitrogen freezer?
The consumption cost of liquid nitrogen freezer is mainly divided into two parts, one is the electric charge, the other is the consumption of liquid nitrogen.The electricity cost is negligible compared with the traditional iqf freezer.
The consumption cost of liquid nitrogen quick freezing is liquid nitrogen. The liquid nitrogen consumption of quick-frozen food is mainly related to several factors such as water content, effective thickness, initial temperature, whether with packaging, and cooling method;. According to theoretical calculation and many years of experience at home and abroad, the consumption of liquid nitrogen for 1 ton of quick-frozen products is generally between 0.5~2 tons, and the consumption of liquid nitrogen for most naked frozen products is about 1.5 tons per ton. Some companies will deliberately say low consumption in order to get customers to buy equipment, but what we want is for customers to have real information to make rational decisions, rather than to be misled into a wrong cost model. We believe that the key for customers to choose liquid nitrogen quick-freezing technology is to greatly improve the quality of customers' products and bring premium and competitiveness, and the small increase in customer costs can be absorbed by the previous two items.
The price of liquid nitrogen will vary due to consumption and region, but if the quantity is large, the average price per ton will be RMB600-800 per ton, and the price will be lower in a few regions. DJL company can help customers find the lowest price of liquid nitrogen suppliers.