2019年7月29日星期一

How to Choose Walk in Cold Rooms


How to Choose Walk in Cold Rooms


Walk in cold rooms are ideal solution to keep bulks of products fresh that require maximum storage capabilities. ONLYKEM walk in cold rooms are widely used for multiple cold storage applications in the Pharmaceutical, Cosmetic, Food & Beverages, Dairy & other industries for all kinds of products intended for storage at low temperatures.

3 Comprehensive Factors Should be Considered to Choose Walk in Cold Rooms

First, 6 factors should be considered when selecting or using walk in cold rooms.
Frozen foods need be kept with different temperature in walk in cold room based on its temperature requirements. Some foods need -25 degree, some foods need -18 degree.
If possible, please do not put too hot foods into walk in cold rooms directly, it is better to wait it cool down at room temperature, then move into cold room. But frozen foods need be move into cold room as soon as possible.
In order to avoid some food’s special smell effect other food, please store them in different room or use good seal box, then put food into cold room.
The refrigerated foods should be placed on the shelf, and the foods should be stacked to allow the cold air to pass. In particular, leave some space near the evaporator and do not stack foods.
Do not open the cold storage door frequently, and avoid opening the door for a long time when entering and leaving the food. After closing the door, be sure to check if the door is closed.
The cold storage should be cleaned every day to avoid accumulation of dirt and bacteria.









Second, maintenance recommendations of walk in cold room
Check the daily inspection time, and record the change of the storage temperature twice a day in order to find abnormalities and timely repair.
The engineering department regularly cleans the dust on the condenser to maintain the heat dissipation effect.
Regular defrost. When defrosting, you need to unplug the power to melt the cream naturally. Or defrosting with water, heating, etc. it is strictly forbidden to hit hard with hard objects.
Refrigerant leakage should be checked regularly, especially the pipeline connection with oil traces. Where there is oil, it is required to check with soapy liquid.
Master the use and maintenance procedures of refrigerators, and guide employees to use refrigerators correctly.
Regularly clean the foods in the cold storage, check the inside and outside of the cold storage every day to ensure the normal operation.



Third, price composition factor.
The dimension of walk in cold rooms

The size of the cold room is a very important factor affecting the price. For example, the same fruit and vegetable fresh-keeping cold storage, the cost of 50 cubic meters and 3000 cubic meters is not the same.
The usage of walk in cold room

The price of the cold room is related to the its use, broadly speaking, it related to the storage items. The same size of cold room, the price of storing fruit is different from that of storing medicine.
Temperature and cooling time

What kind of cold rooms do you want to build? Is the low temperature cold room or the high temperature cold room? Blast freezer or normal freezer? The requirements of cold room temperature and cooling time are also important factors affecting the construction price. Blast freezer is a cold room that requires stricter requirements in the cooling time, four hours or eight hours of cooling time, the cost is also different.
Refrigeration system

Different compressor, different brand, different machine type will have different cost. Generally large supermarkets require many different refrigeration facilities, such as display refrigerator, walk in cold room, chiller and freezer etc. This kind of project mainly chose rack unit. If only need walk in cold room, normal condensing unit a good choice. Especially, we developed a new type of smart unit this year. High quality, easy installation and maintenance. If you are interested in more details, please do not hesitate, contact us directly.

2019年7月4日星期四

OnlyKem Brand Commercial Refrigeration Condensing Unit for Fish


OnlyKem Brand Commercial Refrigeration Condensing Unit for Fish


Commercial refrigeration condensing unit is the key component of cold room or blast freezer room which is commonly used for fish or fruit cold storage. The split units have limitations in terms of cooling capacity and redundancy functions, so that they can not meet the increasingly stringent requirements of the market. Commercial refrigeration condensing unit is a refrigeration unit composed of two or more compressors, which shares a set of parallel refrigeration circuit. The commercial refrigeration condensing unit is usually used in large cold storage projects, energy-saving and redundant.

At present, our commercial refrigeration condensing unit is more used for fish storage and quick freezing. Firstly, the treated fish is put into the blast freezer within 2 to 6 hours for quick freeze, then stored in the freezer room for a long term storage. Usually we use Bitzer, Turin, Frascold etc compressors (according to customer preferences), they are the famous brand in the world.








Advantage of Commercial Refrigeration Condensing Unit
Energy Saving
For example, one fish freezer room for cold storage below -18 degrees and the capacity is 1200 m3 or 2400 m3, it can be designed to change the size of multiple compressors to match the actual load more smoothly and dynamically, then to realize the optimal energy regulation of load change, improve efficiency and save energy.
Accurate pipeline design can minimize pipeline pressure loss and maximize unit efficiency.
Equipped with a high-efficiency main oil separator, it can almost completely separate the lubricating oil from the compressor exhaust port, effectively improving the heat exchanger efficiency.
Provide multi-suction branch control, according to the need, one unit can be used for multiple evaporation temperatures, effectively use the cooling temperature of each evaporation temperature, so that the system runs in the most energy-saving conditions.

Sufficient Safety Valve
The hand valve is installed at both ends of the filter. When the filter element is replaced, only the hand valve needs to be closed, no need to discharge the Freon, and the cost is saved.
Safety valves are installed at both ends of the compressor. When the compressor is maintained, only the hand valve needs to be closed, no need to discharge the Freon, and the cost is saved.
The Freon reservoir is equipped with a pressure relief valve that automatically opens the pressure relief when the system pressure exceeds the set value.
The oil reservoir is provided with a pressure relief valve, and when the system pressure exceeds the set value, the pressure relief is automatically opened to avoid the danger.

Remote Control
Password level control, the client machine can be monitored remotely to know the real-time system running status.
When the customer’s machine is in poor working condition, it can promptly remind and assist the customer to adjust the parameters to ensure that the machine is running well.
The machine can be alarmed if it fails.
Strong database information can help engineers to maintain equipment.
Good machine operating parameters and data support will help OnlyKem’s technicians to assist in machine commissioning and maintenance.
It is not necessary to go to the site to carry out machine maintenance, system parameter setting, fast and fast, and reduce the impact on production.
Patent PLC System
Automatic control of the entire cold storage system. Automatically balance the running time of each machine head, so that the unit life is extended by more than 30% compared with the single unit. Full automation, this is not only control the rack unit, but also the whole cold storage(rack unit, condenser, evaporator).
The liquid Freon can be changed into a gaseous state by heat exchange in the gas-liquid separator, and the compressor is prevented from entering the compressor and causing the liquid hammer to damage the compressor.
The liquid tank is filled with a liquid level sensor alarm, remind Freon when the liquid level of the accumulator drops to a dangerous level.
Disaster Tolerance Function

When one of the compressors in the unit fails, the other compressors can continue to work normally without affecting the storage safety of all the goods, and can be repaired separately.




OnlyKem commercial refrigeration condensing unit is an optimized combination with high efficiency, reliability, convenient installation and good performance. It is suitable for cold rooms, farms, hotels, restaurants, hospitals, etc.. Welcome to any inquiries about refrigerators or commercial refrigeration and condensation units, your support is our driving force forward.