COLD ROOM

                          China cold room introduction The choice of cold storage or cold storage is good, and many friends are very uptight. Some confuse the air cooler with the air-cooled air-conditioning unit. Some do not know how to choose. What is the best choice for the cold-storage air-conditioning system?Generally speaking, we do recommend the use of air coolers for easy installation. If it is a large-scale cold room, when the exterior height of the cold storage is high, the internal machine adopts a row tube, so the installation is inconvenient and has a certain potential safety hazard. The chiller is easy to dismantle and is suitable for use in high temperature storage.Low-temperature cold storage or ultra-low temperature cold storage, refrigeration encyclopedia recommended to use the row of tubes, the market to do low-temperature cold storage, using a row of tubes out of many machines. Considering from a long-term perspective, the use of platoon pipes makes the cooling capacity in the cold storage even and saves energy and power, but it also has certain disadvantages. The price is relatively high, and it is inconvenient to install compared to chillers.It is perfectly possible to use a chiller at a low temperature of minus 18 degrees or minus 25 degrees, and there is no need to worry about the frosting problem. However, if it is a cryogenic cold storage, it is recommended to use a platoon pipe. Of course, this is closely related to the budget of the cold storage owners.Cold storage chooses cooling fan or row pipe from the following points of view1. From the cooling effect:The cooling effect of the pipe is slightly better than that of the cooling fan. The heat conduction of the pipe is faster than the cooling fan, especially the aluminum row, so the general high-temperature library can be used with a cooling fan. We recommend using the pipe for low temperature or ultra-low temperature storage. , And because the distribution of the pipe is relatively balanced, so the cooling capacity is relatively uniform, can achieve the effect of energy saving.2. From the scope of application:Because the row pipe is a pipe type evaporator, it can strongly lock in moisture. Because the air blower is a wind blower, it will evaporate water, making the product in the store dry and wither. Therefore, it is suitable for products with a lot of water, such as pipe line. Ice cream ice cream, fruits and vegetables, etc., and the chiller, then apply to dry goods, dried fresh, frozen meat, etc., so generally choose to install pipe or fan, mainly to see which match your product more.3. From the height of the library:If it is a large-scale cold storage, and the cold room library has a relatively high external height, it is recommended that the internal unit use a cooling fan. If the exhaust pipe is used, the installation is very inconvenient and there is a certain potential safety hazard. The chiller is more convenient to use in high warehouses because of disassembly and assembly.4. From the perspective of economic adjustment:In general, due to the cooling performance and production cost of the pipe, the price of the pipe is generally slightly higher than that of the cooling fan, especially the aluminum pipe. However, the long-term operation of the cooler bank consumes more power than the aluminum pipe storage. Whether it is a fan or a fan, it is still based on the budget.  

Blast freezer FAQ: Core Function, Compressor, Volume & PriceI. Core FunctionQ1: What is the core function of a Blast freezer?A1: The core function of a Blast freezer, especially a commercial blast freezer, is to freeze products to the target temperature of -18℃ within a preset time. As a professional -18℃ blast freezer, its rapid freezing process can effectively inhibit microbial growth, reduce large ice crystal formation in products, retain product nutrition, taste and appearance, and ensure frozen storage quality. It is widely applied in food processing and cold chain logistics, suitable for freezing meat, aquatic products, fruits, vegetables, rice flour products and other items that require frozen preservation.Q2: Is -18℃ the only target freezing temperature for blast freezeer?A2: -18℃ is the standard target temperature for most blast freezer, including commercial Blast freezer, complying with national food safety standards for frozen storage. For special products (e.g., high-end seafood, biological products), a -18℃ quick-freezing warehouse can be customized to lower temperatures (-25℃, -30℃), but this customization will directly affect blast freezer compressor selection and increase overall equipment costs.II. Compressor SelectionQ3: How does freezing time affect blast freezer compressor selection?A3: Freezing time directly determines the refrigeration capacity required by a Blast freezer, which is the core basis for quick-freezing warehouse compressor selection. Short freezing time requires a high-power compressor (such as a screw compressor for blast freezer ) to provide sufficient cooling capacity to reach -18℃ on schedule; longer freezing time only needs a medium-power piston compressor for blast freezer. Different compressor types and power levels are precisely matched based on freezing time, ensuring the freezing efficiency and stability of the blast freezer .Q4: What are the common compressors for blast freezer and their matching rules?A4: Common compressors for blast freezer and their matching rules: 1. Piston compressor for blast freezer: Suitable for small/medium blast freezer with long freezing time (4-8 hours to -18℃), featuring stable operation and low initial cost, making it an ideal choice for small food processing plants. 2. Screw compressor for blast freezer: Suitable for large blast freezer or scenarios requiring short freezing time (2-4 hours to -18℃), with large cooling capacity and high efficiency but higher cost. For ultra-fast freezing (less than 2 hours to -18℃), high-power screw compressors for blast freezer or multi-compressor parallel systems are needed to meet the demand.III. Volume SelectionQ5: What is the key principle for blast freezer volume selection?A5: The core principle for blast freezer volume selection is "suitable for product capacity, not excessively large"—that is, to choose a suitable volume blast freezer. Volume should be determined by daily/batch freezing capacity, product stacking method (height, gap), and auxiliary space for equipment. Choosing a suitable volume quick-freezing warehouse avoids refrigeration energy waste and effectively reduces initial investment and long-term operation costs.Q6: What risks come with an overly large blast freezer?A6: Overly large volume of a blast freezer leads to three main risks: 1. Increased energy consumption: More energy is needed to maintain the target temperature of -18℃ in a larger space of the quick-freezing warehouse, significantly raising daily electricity costs. 2. Higher initial investment: More insulation materials, steel structures and larger-scale refrigeration equipment are required for a large blast freezer, increasing purchase and construction costs. 3. Low utilization rate: Idle space causes uneven temperature distribution in the blast freezer and reduced freezing efficiency, failing to exert the optimal performance of the equipment.Q7: How to accurately calculate the required volume?A7: To accurately calculate the volume of a suitable volume blast freezer, you can follow these simple steps: 1. Confirm daily freezing capacity (e.g., 5 tons/day). 2. Determine freezing cycle (e.g., 6 hours/batch, 4 batches/day). 3. Calculate single-batch capacity (5÷4=1.25 tons/batch). 4. Calculate volume based on product density and stacking coefficient (e.g., 1.25 tons of frozen meat needs 1.5-2 m³, plus auxiliary space for equipment installation and operation, the total volume of the blast freezer is about 2.5-3 m³/batch). It is recommended to consult professional technical personnel to adjust the calculation based on specific products and on-site workshop conditions.IV. Price-Related QuestionsQ8: What are the main factors affecting blast freezer prices?A8: Core factors affecting blast freezer price: 1. Compressor type and power: Shorter freezing time means higher power and cost (screw compressor for blast freezer is more expensive than piston compressor for blast freezer ). 2. Warehouse volume: Larger volume of the blast freezer increases material, equipment and construction costs. 3. Customized requirements: Customizing lower temperature than -18℃, adding advanced temperature monitoring systems, using high-quality insulation materials, etc., will all add to the blast freezer price. Among them, compressor selection and warehouse volume are the key determinants of the base price of a blast freezer.Warm Reminder: To customize a cost-effective blast freezer, especially a suitable volume blast freezer that meets production needs, it is recommended to provide suppliers with the following key information: 1. Daily/batch freezing capacity of products; 2. Required freezing time (to reach -18℃); 3. Specific type and characteristics of products;4. Workshop space size and layout restrictions. Professional suppliers will tailor a targeted solution based on these details, balancing freezing efficiency, equipment cost and operation cost.

What is a blast freezer?Quick-freezing cold storage refers to a method of quickly freezing food through its maximum ice crystal generation area and quickly freezing when the average temperature reaches -18 ° C.The temperature of the freezer is generally -15 ° C to -35 ° C. Mainly used for low-temperature fast freezing of food, medicine, medicinal materials, chemical raw materials and other items. With fast cooling, good freshness and so on.The so-called rapid freezing refers to the method of quickly freezing food through its maximum ice crystal generation area and quickly freezing when the average temperature reaches -18 ° C.During the freezing process, various changes occur in food, such as physical changes (volume, thermal conductivity, specific heat, dry loss, etc.), chemical changes (protein denaturation, discoloration, etc.), changes in cell tissue, and biological and microbial Changes, etc.The characteristic of fast frozen food is that it maintains the original nutritional value and color and aroma of the food to the maximum extent.That is to say, during the freezing process, a quick guarantee must be kept to ensure that the above-mentioned various changes in food have reached the greatest reversibility.Large-scale quick-freezing warehouses are all part of cold storage, and are built with other storage areas (low-temperature storage, shady storage, etc.).If you want to build a small-scale quick-freezing warehouse, you can choose a combined cold storage, which is the assembly type said in the industry. Such an assembly cold storage saves costs, saves construction time, and has complete functions.

China blast freezer Container blast freezer can be assembled in the container, can be based on customer quick freezer demand, equipped with refrigeration equipment. and heat preservation body selection integrated planning, compact construction, high refrigeration efficiency. Freezer is usually controlled at -35 to -40 degrees, fast cooling speed and high efficiency. The cold storage container uses the standard IC type container, the basic construction scale is 6058mm*2438mm*2438mm, equipped with central main temperature zone, built-in shelf, the front part is the sub-temperature zone and storage area, the rear part is the generator cabin and the refrigeration unit. The key parts of Refrigeration Unit are selected by famous Brand in the World Products, unit running firmly, leading control, excellent function, simple installation, efficient saving electricity, low protection rate. The unit is divided into a single unit and a two-stage cryogenic unit, according to the size of the sensitive matching. According to some special occasions, can also be customized noise reducing chassis cover.In the main temperature area of the container cold storage, the large plate insulation structure is used, and the scale (L*W *H) is 3100mm*1920mm *1740mm. The inside of the container freezer is divided into two parts by the static pressure air plate, the upper part is the static air chamber, the lower part is the constant temperature region, the height is 270mm and 1740mm. In order to decrease the temperature difference in the constant temperature zone, the structure of the over static pressure chamber can produce stable and uniform layer flow wind, and the first place in the constant temperature area needs to be refrigerated. High temperature curing resin adhesive is used for the main temperature zone wall plate. The aluminum profile skeleton, rust proof aluminum plate, heat insulation bridge and rigid polyurethane foam are bonded and limited to form, the thickness is 10. 0mm. The top of the back wall is provided with an air vent and an external transpiration cabin. The transpiration system is installed in the transpiration tank, and the wall plate structure is the same as the main temperature zone, and the thickness is 80 mm.

Low temperature and humidity thawing device adopts unique efficient humidifier, guarantees the thawing process under different temperature environment humidity requirement, make different thaw frozen meat to achieve high quality, through the control program to realize automatic thawing process.Low temperature high humidity defrosting machine realized that the time of defrosting was shortened, the defrost was uniform, the temperature of the food center was small and the temperature of the surface temperature was small, the loss rate of the juice was low, so that the meat returned to fresh condition after thawing.The low temperature high humidity vacuum defrosting machine adopts full automatic control.Defrost time and temperature can be adjusted according to different frozen product requirements. After defrosting, it will automatically be refrigerated to keep fresh, and fresh food can be taken out of the refrigerated state at any time.The advantages of other thawing methods cannot be compared, and it is widely used in meat, aquatic products and other frozen foods.Frozen meat thawing line, frozen chicken leg defrosting machine features:1. Reduce the loss of food moisture, lock the nutrient content, and reduce the loss rate of the product (the actual loss rate is within 1%)2 PLC touch screen full automatic control, can be adjusted according to different defrost requirements, easy to operate3 frozen meat defrosting assembly line, frozen chicken leg defrosting machine defrosted after defrosting to be automatically converted to refrigerated preservation state, with the use, maintain the fresh condition of defrost products4 the whole defrosting process is in a low temperature environment, which can be used to remove the bacteria and meet the food safety and health requirementsIt is widely used in meat and aquatic processing industries such as poultry meat, pig, beef and mutton, squid, etc6 frozen meat defrosting assembly line, frozen chicken leg defrosting machine ideal thawing curve, the source of quality products!Frozen thawed lines, frozen chicken legs thawed machine the equipment is under the condition of constant temperature, constant humidity, constant current, the boiler high temperature steam as heat source, through the step-down, air-conditioning into low temperature steam equipment to thaw frozen raw meat.The water-saving effect of thawing machine is significant, and the water consumption of the raw meat is only 0.5%.