by admin admin

PIR Polyurethane insulation panels exported to Costa rica

Our factory manufacture PUR insulation panels, PIR insulation panels and Cam lock Panels for cold storage room

Our company adopts the most advanced continuous production line to produce fast-fit panel,the foaming material is made in high temperature environment of the double-belt machine,full reaction,uniform foam,no stoma,and the insulation performance is better.

PIR insulation panels features:

Good heat conductivity, great water absorption, good in temperature preservation performance,
excellent compressive strength and tensile strength, not easy to deformation, it is widely used in maintaining the combination of cold storage structure.

 

by admin admin

Portable moveable 20ft and 40ft container cold storage room

Atlascool container type cold rooms and cold storages is portable and moveable, you can put it anywhere , you can move it or hire it, the fact that it is portable offers you many advantages. Many business owners, and especially fishing companies prefer portable container type cold storages.

Our mobile container type cold room and cold storage is suitable for international container transport standards. it can be used directly after you receive the goods. The container cold room can be pre-assemble in the factory, that will save your more installation time and cost.

Refrigerated containers are also preferred due to practical and ease of use. You just need to provide energy to operate the system and will obtain required cooling within an hour.

We design and manufacture right type of portable refrigerated containers that fully meet your requirements. We design container type refrigeration for different purpose of use such as cold storage, chilling room, freezing room or blast freezing. We offer custom made solutions according to your demand by installing proper refrigeration unit, pu panels and suitable doors. Container type cold rooms and cold storage will be used in many industries to preserve wide range of products such as fresh fruits, meats, fish, ice cream, chicken, vaccinations, sensitive chemicals etc.

According to the place of use; containers cold room can be designed for different temperatures
Ambient Cooling: +12°C / +16°C
Cold Storage: -5°C / +8°C
Frozen Storage: -18°C / -25°C
Blast Freezing : -35°C / -40°C

WHAT SIZE ARE REFRIGERATED CONTAINERS COLD ROOMS?                                                                            Refrigerated containers cold room come in two main sizes, 6m containers (20ft) and 12m containers(40ft). The 20ft containers have a cubic capacity of 28mᶟ and the 40ft containers 66mᶟ. They both have an external width of 2.2m.

For more information on our cold storage containers and shipping container cold rooms, contact us today on +86 15508661121 info@atlascool.com

 

 

by admin admin

Cold Storage Room for Fruits and Vegetables

In order to increase the value of fruits and vegetables, we need cold storage rooms to store fruits and vegetables to keep their fresh, there are many factors to affect how fresh produce should be stored. Now let’s learn how to use cold storage room to stock and distribute your fresh products and the most important factors to consider when using cold storage room for fruit and vegetables.

1, Fruits and vegetables must be selected and sorted before entering the cold room storage.

The selection work should be done carefully, it will remove the fruits and vegetables with mechanical injuries, insect injuries or different maturities. Because the fruits and vegetables contain a lot of water and nutrients, it is a good medium for microbiological life. Fruits and vegetables contaminated by microorganisms will soon rot and deteriorate.

While fruits and vegetables of different maturities should not be mixed and preserved. Because more mature fruits and vegetables will rot faster. After selecting those with good quality that can be refrigerated for a long time should be wrapped with paper one by one and packed in boxes or baskets.

The paper used to wrap fruits and vegetables should not be too hard or too thin. It is better to use paper that has been treated with chemicals that do not have any adverse effects on fruits and vegetables. During the whole selection and sorting process, special care should be taken to handle gently to prevent injury to the fruit due to careless work.

2, For Fruits and vegetables cold storage room, we will take a gradual cooling method.

After the fruits and vegetables are harvested, it is better to cool them in the place where the raw materials are produced in time to dissipate the heat inside them. After cooling, the fruits and vegetables are transported to the cold storage room by a refrigerated truck directly. If the fruits and vegetables from the raw materials are not cooled, after entering the cold storage room, a gradual cooling method should be adopted to prevent certain physiological diseases.

For example, some flowers fruits, roots and leaves vegetables must enter the cold storage room as soon as possible for storing. Such as: broccoli, celery, purple camomile, bitter gourd, yam and so on.

Vegetables that generate a lot of heat must be treated with ice water. After the water tank is filled with 0 ° C ice water, all the vegetables are immersed in the ice water to cool the vegetables to 7-8 ° C, and then remove the drained water. Then enter the cold storage room to save. Such as: corn, green beans, stemless beans, rattan, etc.

The vegetables after processing, they must be kept in fresh-keeping bags to prevent the evaporation of moisture when entering the cold storage room.

For leafy vegetables, they must be sprayed with ice water in time before entering the cold storage room.

For other vegetables: the products are sprayed with ice water or covered with a cooling cloth to cool down, and sprayed once every hour during the overnight period Keep the water cool and fresh. Such as: green pepper, eggplant, onion garlic seedlings, tomatoes (immature), potatoes, dumplings, pumpkin, winter melon, yarrow, burdock, etc.

3, Different types of fruits and vegetables should be stored at their optimal temperature.

Produce Type Optimum Temperature °C Optimum humidity % Storage life
Apples -1~+1℃ 85%~90% 3-8 months
Peach -1~+1℃ 85%~90% 1-4 weeks
Grape -1~0℃ 80%~90% 1-2 weeks
Orange 0~+1℃ 85%~90% 8-10 weeks
Grapefruit 0~+10℃ 85%~90% 3-12 months
Pear -0.5~+1.5℃ 85%~90% 1-6 months
Eggs -2~0℃ 80%~85% 5-7 months
Cabbage, spinach, coriander, carrots,kale, celery, lettuce -1~+1℃

 

90%~95% 1-3 months
Potato +2~+4℃ 85%~90% 1-6 months

Our cold rooms are a great solution for any business looking for custom cold storage for their fruits and vegetables. If  you’re looking for quality cold storage for fruit and vegetables, contact us today on 0086 15508661121. Alternatively, contact us online or click here to see out range of suitable cold storage room options.

by admin admin

Fish and Seafood Industry Cold Storage Room

The fish and seafood cold room is a low temperature room to keep the fresh of all kinds of fish and seafood.

According to the storage time, it can be divided into fresh seafood cold storage room, frozen seafood cold storage room and seafood blast freezer cold room.

Any fresh fish or sea food needs very strict storage requirement as there is a high risk of rapid bacterial growth which can waste the storage. Also it needs to keep separate from all other type of food stored.

1, Fresh seafood cold storage room;

They are mainly used for the temporary turnover and trading of fresh seafood. The general storage period is 1-2 days, and the temperature range is -5 ~ -12 ℃. If the product is not sold within a 1-2 day period, the seafood should be moved in the blast freezer room for quick freezing.

2, Frozen seafood cold storage room;

They are mainly used for long-term  preservation of frozen seafood. The general storage period is 1-180 days, and the temperature range is -20 ~ -25 ℃. Quick-frozen seafood from the blast freezer room  is transferred to this low temperature cold room.

3, Fish and seafood blast freezer cold room;

The quick freezing time is generally between 5 hours and 8 hours, and the storage temperature is between -30 ~ -35℃;

The difference between seafood cold storage room and common cold storage room is that seafood generally contains more salt, and salt has a corrosive effect on materials. If the cold storage does not do some anti-corrosion  treatment, it will rot and perforate after long-term corrosion. We advice that using stainless steel panels for building fish and seafood cold room. Evaporators use blue hydrophilic aluminum foil fins.

We offers a range of refrigeration products and services to the fish industry. Our range of cold room solutions is designed to keep your fish as close as possible to the same condition in which they were caught.

We have a choice of blast freezers and cold storage in a range of capacities suitable for storing a large variety of your products. With the short lifespan of fish once caught, it is essential for them to be quickly and permanently frozen almost from the time of being caught to the time it is purchased by the consumer.

Portable blast freezer container

It will use the brand new ref containers, Bitzer compressor and LUVE evaporators.

High capacity unit for freezing seafood and meats. Efficient and full air flow for maximum loads.
20feet blast freezer container -35℃ 1.8~2 tons/8 hours;

40 feet blast freezer container -40℃ 2.5~3 tons/8 hours;

The mobile container type freezing tunnel is portable, you can put where you want, or you can rent it, to be portable gives you many advantages. You can use your garden from where you can win or loading in factory where cover is provided.

The blast freezer containers are reliable, mobile, quick freeze solutions for high-value seafood and meats.

We meet the needs of the fishing industry through a selection of features specifically designed to allow your company to be more efficient and effective in your cold storage abilities.

by admin admin

Guide to Meat Cold Room Refrigeration Technologies

Understanding the correct meat cold room procedures whether frozen or chilled, is important if you want produce that is as fresh, delicious and safe as possible.

Harmful bacteria begin to develop in raw meat from the moment an animal is slaughtered, making storage an incredibly time sensitive process. If you want or need to prolong the life of your meat for as long as possible, it’s crucial that you follow the correct safe storage procedures.

Usually the temperature dropped below -18 ℃, the food freezing rate was high, the microorganisms and enzymes basically stopped moving and growing, and the oxidation was also very slow. Therefore, the food can be stored for a longer period of time and has better frozen quality. In addition, frozen food also requires that the temperature in the storehouse be relatively stable. Excessive temperature fluctuations will cause spoilage of the food.

Meat cold room is mainly used for the cold processing of meat carcasses such as pigs, cattle, and sheep.

1, Pre-cooling room

The freezing point of meat juice is -0.6 ~ -1.2 ℃. When the carcass temperature after slaughtering is about 35  ℃, it is sent to a cold room. The designed room temperature is about 0 ~ -2  ℃. The meat temperature is reduced to 4  ℃ in the cold room. Due to the small heat capacity and thermal conductivity of the air, increasing the air flow rate can increase the cooling rate. However, an excessively strong air flow rate cannot increase the cooling rate compared with the same period of the previous year, but it will greatly increase the dry shrinkage loss and power consumption of the meat surface. Therefore, in the cooling process, the wind speed in the cargo room of the cold room is suitable not to exceed 2m / s, and generally the above 0.5m / s is used. The air circulation times are 50 ~ 60 times / h, and the cooling time is 10 ~ 20h. The average dry body consumption is about 1.3%.

2, Cooling processing

A, The temperature is -10 ~ -15 ℃, the air velocity is 1.5 ~ 3m / s, and the cooling time is 1-4h. The average enthalpy value of the meat at this stage is about 40kj / kg, which makes the surface of the meat form a layer of ice. Not only reduces the dry consumption, but also accelerates the cooling process (the thermal conductivity of ice is 4 times that of water).

B, The cold room temperature is about -1 ℃, the air velocity is 0.5 ~ 1.5m / s, and the cooling time is 10 ~ 15h, so that the surface temperature gradually increases and the internal temperature gradually decreases, so that the temperature of the body is balanced until the thermal center temperature reaches 4 ℃. The meat cooled by this method has good color, aroma, taste and tenderness, which shortens the cooling time and reduces the dry consumption by 40% to 50%. The following picture shows the process conditions for rapid cooling of meat.

3, How long can you freeze meats for?

The first thing to understand when considering storage options is that not all meats are equal and that their storage times reflect this. It’s important to remember that the fat and water content, as well as the size of the cut, will change how long a piece of meat should be stored for in a blast freezer.

These timings are a good indication of how long regular cuts of meat will stay fresh at -18°C if storage procedures, up until this point, have been followed correctly.

Beef and lamb generally have a longer storage time because they are made up of hard fats, which are partially saturated. However younger meats, such as veal and pork, will deteriorate much faster as they have a lower level of saturated fat. Larger cuts of meat will almost always have a smaller storage time, as they take longer to blast freeze initially.
Alongside this, you should be careful never to overfill your cold storage container as this can cause meat to freeze slowly or unevenly, leaving your customers susceptible to food borne illness.

These guidelines are guidelines only and proper safety and quality control checks should always be undertaken before meat is served to customers.

Working in the food industry, it’s important to make your food go as far as possible. Wasted food stops your business from being profitable but with the help of a blast freezer or cold room, you can keep produce fresher for longer periods of time. You can increase your profits and serve food to your customers without the worry of tainted produce. Any meat cold room inquiry, contact us info@atlascool.com.

by admin admin

Fruits cold room and Bitzer screw compressors exported to Singapore

We specialise in the design and installation of cold rooms, our company is the leading cold room and refrigeration unit designer, manufacturer and exporter dedicated in supplying finest quality cold room solutions to worldwide customers. we exported a large selection of fruits and vegetables cold rooms and refrigeration units to Philippines and Singapore. Our fruits and vegetables storage cold rooms are made of high quality materials and low energy consumption.

100mm cold room panels with 0.5mm thickness double face steel.

Bitzer air cooled condensing units

Bitzer CSH screw compressors

As your cold room experts, we had been specializing in delivering turn key cold room solutions to worldwide customers for 18 years. We had provided many types of effective and states of the art cold rooms and freezer rooms to over 40 countries. We have been exporetd cold rooms to Swiss, Sweden, Australia, USA, Canada, New Zealand, Pakistan, Spain, India, Malaysia, Singapore, Malaysia, Philippines, South Africa, Argentina, Indonesia, Kenya, Algeria, Ghana, Guyana, Mongolia, Chile, Peru, Dubai, Poland, Mexico, Brazil, Lebanon, Thailand, Kazakhstan, Turkmenistan, Bangladesh, Colombia, Bahrain, Papua New Guinea and so on

 

by admin admin

Why the cold room temperature drops slowly?

1, Poor heat insulation and sealing of cold room causes losing large cooling;

Poor insulation performance is due to insufficient thickness and lower quality of insulation on refrigeration pipes, cold room insulation walls, etc., It is mainly caused by improper selection of insulation panels thickness during design or poor quality of insulation material during construction. In addition, during the construction, the moisture resistance of heat insulation materials may be damaged, causing the insulation panels to be damped, deformed, or even eroded. Its heat insulation capacity is reduced, and the loss cooling of cold storage room is increased accordingly, then cause the cold room temperature slows down.

Another important reason for the large cooling loss is the poor sealing performance of the cold room, and more hot air penetrates into the cold room from the leak. Generally, if condensation occurs on the sealing strip of the cold room doors or the seal of the cold storage room insulation wall, it indicates that the seal is not tight. In addition, frequent opening and closing of the cold room doors or a large number of people entering the cold room together will also increase the cooling loss. Try to avoid opening the cold room doors to prevent a lot of hot air entering the cold room. Of course, when the cold room frequently receives goods or the quantity is too large, the thermal load increases sharply, and it usually takes a long time to cool down to the required temperature.

2, The thick frost and more dust on the surface of the refrigeration evaporator will cause the heat ex-changer reducing;

Another important reason for the cold room temperature dropping slowly is the low heat ex-changer of the evaporator, which is mainly caused by the thick frost or much dust on the evaporator surface. Since the surface temperature of the evaporator in the cold room is mostly lower than 0 ° C, and the humidity of the warehouse is relatively high, the moisture in the air is likely to frost and even freeze on the surface of the evaporator, which affects the evaporator heat ex-changer. In order to prevent the thick frost on the surface of the evaporator, it needs to be defrosted regularly.

3, More air or refrigeration oil in the evaporator will cause the heat ex-changer reducing.

Once more refrigerant oil is attached to the inner surface of the evaporator heat ex-changer tubes, its heat ex-changer coefficient will decrease. Similarly, if there is more air in the heat ex-changer tubes, the heat ex-changer area of the evaporator will decrease and its heat ex-changer will be reduced. So the temperature in cold room will dropping slowly. Therefore, in the daily operation and maintenance, should pay more attention to timely removing the oil on the inner surface of the heat ex-changer tubes and exhausting the air in the evaporator to improve the heat transfer efficiency of the evaporator.

4, Improperly adjusted or blocked of the throttle valve will cause the refrigerant flow too large or too small.

Improper adjustment or blockage of the throttle valve will directly affect the refrigerant flow into the evaporator. When the opening degree of the throttle valve is too large, the flow rate of the refrigerant is too large, and the evaporation pressure and the evaporation temperature are also increased, and the temperature of the cold room will drop slowly. At the same time, when the opening degree of the throttle valve is too small or blocked, the refrigerant flow rate is also reduced, the cooling capacity of the system is also reduced, and cold room temperature will also drop slowly. Generally, you can judge whether the refrigerant flow rate of the throttle valve is appropriate by observing the evaporation pressure, evaporation temperature, and frosting of the suction pipe. Throttle valve clogging is an important factor that affects the flow of refrigerant.

5,  Low efficiency of the refrigeration compressor will cause lower cooling capacity;

Due to the long-term operation of the refrigeration compressor, severe wear of the cylinder liner and piston ring and other components, the clearance will increase, the sealing performance will decrease accordingly, the air transmission coefficient of the refrigeration compressor will also decrease, and the cooling capacity will decrease. When the cooling capacity is less than the heat load of the cold room, the temperature of the cold room will drop slowly. The refrigeration capacity of the compressor can be roughly judged by observing the suction and discharge pressure of the compressor.

6, Lack of refrigerant in the refrigeration system;

There are two main reasons for the lack of refrigerant. First, the refrigerant charge less. Another reason is that there is a lot of refrigerant leakage in the system. In this case, you should first find the leak point, focus on the inspection of the pipeline and valve connections, repair the leaked part, and then fill the refrigerant with sufficient amount.

by admin admin

How to build cold room and design the refrigeration system?

What is a cold room?

Cold room is a building warehouse using refrigeration machine to reach a certain temperature and has insulation to hold the temperature.

It is also a constant temperature and humidity storage room for foods, liquid, chemical, pharmaceutical, vaccine, scientific experiments and other items. The refrigeration system of the cold room is still a core component of the construction of the entire cold storage room.

1, Cold room refrigeration system refrigerant:
Ammonia: the oldest in history, the best choice in the field of industrial refrigeration worldwide. Due to the characteristics of the ammonia system, it is generally used for centralized refrigeration, with a special machine room for large-scale refrigeration systems (more than 10,000 tons of cold storage). There is a trend toward miniaturization and modulation, with an emphasis on improving safety and reducing the amount of charging.

Freon: It is widely used in cold storage to disperse refrigeration. It is suitable for small and medium-sized cold storage and large-scale cold storage with limited ammonia. For environmental protection, large-scale cold storage The Freon system should be avoided as much as possible.

CO2: The cold storage application is mainly based on cascade system and loading system. The low-temperature field is more suitable for cascade. The high-temperature field is suitable for loading. The cascade system is more expensive than the traditional ammonia and Freon system.
According to the cold room temperature:
High temperature cold room design temperature (-2~8°C)
Medium temperature cold room design temperature (-10~-23°C)
Low temperature cold room design temperature (-23~-30°C)
Ultra-low temperature cold room design temperature (-30~-80°C)
According to the cold room scale:
Large cold storage over 10,000 tons
Medium-sized cold storage 1000-10,000 tons
Small cold storage less than 1000 tons
The polyurethane cold room panels is made of lightweight polyurethane as the inner material of the cold room panels. There are Pu panels, PUR panels and PIR panels. Jointing type is Cam lock, tongue and groove, hook and pin. The surface materials has galvanized color steel, stainless steel, and aluminum sheet.
The cold room panels thickness is 50mm, 75mm, 100mm, 120mm, 150mm, 175mm, 200mm, 250mm. The quality of cold room panels is also an important reason to affect the cold room temperature.
The most important in purchasing cold room panels is the density and air tightness of the panels.

2, Refrigeration system compressor unit choice:

The compressor is the heart of the refrigeration system. According to the scale of the cold room and the design temperature, the rational selection of the refrigeration compressor unit is the key to the design of the refrigeration system.

In the cold room applications, we mainly use reciprocating compressors, screw compressors and scroll compressors.

Ammonia refrigeration systems generally use open-type compressors, mainly using open screw compressors. Freon refrigeration systems generally use scroll compressors and semi-hermetic or hermetic compressors. When the cooling capacity is small, semi hermetic reciprocating compressors are generally used. When the cooling capacity is large, open screw compressors are generally used. In order to meet the economic requirements of the refrigeration system under different load conditions, and to ensure the reliability of the operation of the refrigeration system, the compressor unit can be used in parallel with multiple compressors.

3, Liquid supply type choice:

The liquid supply of the refrigeration system are divided into four types: direct expansion supply, gravity supply, liquid pump supply, and air pump supply.

The common liquid supply for cold room refrigeration systems are direct expansion type liquid supply and liquid pump forced supply. Usually, the small refrigeration system uses a direct expansion type liquid supply system, and the large refrigeration system uses a barrel pump forced liquid supply system.

The advantages of the barrel pump are as follows: 1 the evaporator has high heat exchange efficiency and good cooling effect; 2 can ensure long-distance liquid supply; 3 the operating condition of the refrigeration compressor can be improved to ensure the safe operation of the refrigeration compressor And improve the refrigeration efficiency of the compressor; 4 system operation is simple and reliable, easy to centralize control and automation.

The disadvantages of it: 1 the refrigerant charging is large, the machine room area is increased, and the initial investment is increased; 2 the system oil return is complicated, and the faulty treatment will cause the entire refrigeration system running failure.

4, Refrigeration system automation control

For large refrigeration systems, centralized PLC control systems are generally used.

 

by admin admin

How to do in the first time cooling of cold room?

Before running one cold room especially low temperature cold room, the system debugging of the low-temperature cold room is a very important thing. Only the cooling adjustment can reach the temperature it needs, and avoiding the damage of the civil structure of the cold room due to the sudden temperature drop. Let’s learn how to do during the first time cooling of cold room?

First of all, we should do the corresponding preparation work, and do the vacuuming work for the refrigeration system. The cold room temperature will gradually decrease by a slow method.

Next, we can evaluate an effect of cooling. Why we should do slow cooling? It makes the moisture contained in the construction project to be slowly discharged to the outside. And also avoids the damage of civil structure works because of sudden temperature and due to freezing of water. It can also prevent a phenomenon of cold shrinkage caused by excessive temperature drop, which will cause damage of the external wall structure of civil engineering. This is actually an important part in the installation process of low temperature cold room.

Before starting the cold room cooling, for example, before the filling of the refrigerant, must be done vacuuming, so that it can check whether the system has strictness, and can also promote the air and moisture discharge in the cold room. And it should also be done with nitrogen filling and check leaking. This is also a better treatment method. Each cold room building materials is different, so the cooling temperature speed is also different.

The first time cooling step:
1, charge nitrogen using the pressure difference
2, supply liquid to the evaporator properly .
3, Do slowly cooling to the cold room temperature.
4, Do extremely rapid cooling. At this time, verify how is the cooling effect