General size of fruit fresh-keeping cabinet
Ordinary two-door display cabinet: This fresh-keeping cabinet is designed with two doors in size of 1 meter and 1.2 meters. This simple and elegant, suitable for general convenience store fruit preservation.
Ordinary three-door display cabinet: This is the same style as the 903, but this one has three doors. The length of this one can be 1.8 meters, which is larger.
Vertical ordering cabinet: This machine can be used as an ordering cabinet or a fruit preservation cabinet, with beautiful appearance and comprehensive display. It has refrigeration and freezing functions, and the freezing temperature is not very low to ensure that the fruit will not be frostbitten. The size can be 1.2 meters, 1.4 meters, 1.6 meters, 1.87 meters.
Fruit air curtain cabinet: This is a relatively high-grade freezer, generally suitable for large supermarkets, fruit specialty stores, and imported fruit stores. This luxurious and generous size can be made from 1 meter to 3 meters, and it can also be reasonably lengthened according to the needs of businesses.
When customizing a freezer, you need to express your needs, such as what type of freezer, size, size, material, and specific style, to the sales staff of Ou Xue freezer, and we will customize the corresponding freezer according to your needs. .
There are several kinds of fruit fresh-keeping cabinets
The fresh-keeping cabinets on the market can be divided into air-cooled open fresh-keeping cabinets and direct-cooled glass-door fresh-keeping cabinets, whose function is to reduce the temperature and slow down the activities of bacteria inside the food speed, to extend the shelf life. At present, the most popular ones on the market are fresh-keeping cabinets for cooked food, fresh-keeping cabinets for fresh meat, fresh-keeping cabinets for yogurt, and fresh-keeping cabinets for clean vegetables.
At present, the most popular ones on the market are the fresh-keeping cabinets for cooked food, fresh-keeping fresh meat, yogurt and fresh-keeping vegetables.
Other similar products: vacuum storage cabinets, vacuum storage boxes, vacuum storage buckets, vacuum storage tanks and high vacuum storage cabinets.
There are also all kinds of anti-oxidation, anti-rot, anti-mildew, anti-insect and other fresh-keeping equipment.
The function of fresh-keeping cabinets
The fresh-keeping cabinets on the market can be divided into air-cooled open fresh-keeping cabinets and direct-cooled glass-door fresh-keeping cabinets. to extend the shelf life.
How to choose a fresh cabinet
Refrigerator, fresh-keeping cabinet, refrigerated display cabinet, refrigerated display cabinet are durable consumer goods, so you should choose a refrigerator of reliable quality. With the upgrading of my country’s refrigerator industry, the differences in the manufacturing quality of refrigerators of various brands have been very small. When measuring the quality of refrigerators, it may be considered more from the perspectives of technical grade and raw material use. Refrigerator is a household appliance with complex manufacturing process. Its design level and production process have a great impact on the quality of refrigerators. The quality of refrigerators produced by manufacturers with a high technical starting point is guaranteed. The selection of components, especially key components, has a great impact on the service life of the refrigerator. High-quality refrigerators generally use high-quality components such as pure copper tubes and imported coated steel plates to ensure the life of the refrigeration system and the rust resistance of the refrigerator.
The difference between different styles of fresh-keeping cabinets
The direct cooling type is similar to the refrigerator you use at home, relying on the copper pipes on the inner wall of the refrigerator for cooling; while the air-cooling type is similar to the air conditioner in your home, relying on the cold air blown out for cooling.
Direct cooling type
The low temperature natural convection on the surface of the evaporator reduces the temperature in the box, but the temperature is not uniform. It is more power-saving, and the effective volume is large under the same volume. The advantages of direct cooling technology are low manufacturing cost, good preservation effect and low power consumption, but non-drawer freezers sometimes require manual defrosting. The direct cooling type has low power consumption, low noise, low price, and refrigerated food preservation; slow speed and poor temperature uniformity. Mainly in the Chinese and European markets.
Air-cooled
The freezer with air-cooling technology does not need to be defrosted, clean and refreshing, and the cold air is forced to be blown into the space by the air duct, causing circulation, uniform temperature. The automatic defrosting of the freezer compartment is low in humidity, and the cooling is uniform to achieve the effect of precise temperature control, and the food will not freeze together, which greatly reduces the phenomenon of mutual smell. Its shortcomings are that the air-cooling technology costs more and consumes more electricity; food is easy to air-dry and dehydrate, and it is suitable for use in humid areas. The power consumption is higher than that of the direct cooling type, and the effective volume is small under the same volume. The air-cooled type has fast freezing speed, no frost (automatic defrosting), food preservation, and good temperature uniformity; but it has high power consumption, high noise and high price. Mainly in the United States, Japan, South Korea and southern China markets.
Quality comparison of fresh-keeping cabinets
When purchasing fresh-keeping cabinets in supermarkets, the first thing to examine is the performance of fresh-keeping cabinets. The main indicators of the fresh-keeping cabinet are listed as follows:
High-quality characteristics
1. The effective volume of the supermarket fruit fresh-keeping cabinet is larger
The mark of the technical parameters of the high-quality fresh-keeping cabinet All of them are in accordance with the requirements of international standards, and all of them have passed the sampling inspection of the national quality and technical supervision agency over the years.
2. The temperature of the supermarket fresh-keeping cabinet is constant and the cooling speed is fast
The working temperature of the high-quality supermarket fresh-keeping cabinet is the most suitable for food storage or fresh-keeping Temperature distinction, the refrigerator is suitable for plant-based food, which can ensure that the juice contained in the food is not lower than the freezing point and maintains its fresh state. The temperature of the freezer is -18 degrees Celsius, and the shelf life of food stored at this temperature is up to 1 month. The high-quality fresh-keeping cabinet not only ensures that the temperature of the fresh-keeping cabinet meets the requirements according to the standard, but also makes the cooling speed of the high-quality fresh-keeping cabinet faster by adopting special-shaped evaporating tubes and matching the unit with suitable cooling capacity.
3. Commercial high-power compressors for supermarket fresh-keeping cabinets
All high-quality fresh-keeping cabinets use commercial compressors. In addition to good start-up performance and complete cooling capacity from small to large, commercial compressors can be configured differently according to different product requirements. Only commercial compressors can adapt to the harsh operating environment, frequent starts, and long running time of commercial fresh-keeping cabinets to ensure product quality. Although the price of commercial compressors is higher than that of domestic compressors, the failure rate is lower than 2 in 1,000.
4. The material of the supermarket fresh-keeping cabinet is better
All the evaporation tubes of the high-quality supermarket fresh-keeping cabinet are made of high-quality copper coils and processed into wide-faced special-shaped. The surface of the stainless steel plate is smooth and clean, and the thickness of the whole plate is uniform. The appropriate thickness can not only ensure a long service life, but also make the appearance of the fresh-keeping cabinet smooth and strong. Compared with aluminum pipes or composite pipes, copper pipes have better cooling effect and better corrosion resistance. High-quality copper coil pipes have the advantages of high cleanliness in the pipes and fewer pipe joints, which can effectively prevent leakage or blockage in the refrigeration system. The round tube is processed into a rectangle, so that the contact between the evaporation tube and the cooling liner changes from point contact to surface contact, which enlarges the transfer area and speeds up the cooling speed.
5. The heat preservation effect of the supermarket fresh-keeping cabinet is better
The quality of the thermal insulation performance of the insulation layer during the production process of the fresh-keeping cabinet is not only an important quality indicator of the fresh-keeping cabinet , is an important factor in the economical use of the fresh-keeping cabinet. In order to achieve good thermal insulation performance, appropriate raw materials must be selected, and the bulk density and cell diameter must be controlled within the optimal range. Therefore, only by adopting the ability to control the material temperature, cooperate with special fixtures, and master the mature foaming process, can the fresh-keeping cabinet with good thermal insulation effect be produced.
6. The structure of the supermarket fresh-keeping cabinet is more sturdy
The structural firmness of the supermarket fresh-keeping cabinet is directly related to the length of the service life of the fresh-keeping cabinet. There is an integral angle steel frame between the shell and the inner tank of the high-quality supermarket fresh-keeping cabinet, which is equivalent to placing steel bars in the cement prefabricated board, and the firmness is greatly increased. After the door frame is all welded and formed, the whole is foamed and formed at one time, which avoids the defect that the cabinet door is easy to fall off due to the poor assembly of the door frame. The advantages of one-time forming of the overall steel frame are obvious, why do other manufacturers not use it? Because the fixture requirements are complex and the clamping is difficult, it is not a manufacturer who always considers the interests of consumers, so it is absolutely impossible to adopt this structure and process.
Inferior features
1. Performance
Inferior and low-price supermarket fresh-keeping cabinets, the performance of the fresh-keeping cabinets is poor, which is reflected in three aspects:
A: The cooling power of the air curtain display cabinet is small. Its matching unit power is relatively small by about 30% to 40%. Usually 1.0 cubic four-door supermarket fresh-keeping cabinets match 1/2HP compressors, while low-priced four-door supermarket fresh-keeping cabinets are equipped with 1/3 or 3/8HP compressors.
B: The cooling temperature of the air curtain display cabinet is high. Its working temperature signs are confusing, some are marked 0 degrees, and users actually reflect that the cabinet temperature is between 8 degrees and 12 degrees in summer. This poses a safety hazard to food preservation that requires a constant low temperature environment.
C: The cooling speed of the air curtain display cabinet is slow. Because these low-cost supermarket fresh-keeping cabinets and fresh-keeping cabinets have low compressor power, the condenser area, condenser fan power and air volume, and evaporator area that match their systems are reduced accordingly. That is to say, the cooling capacity is small, so the cooling speed is slow. If such fresh-keeping cabinets and supermarket fresh-keeping cabinets are only used in winter, spring, autumn, or only in northern areas, they can handle it so-so. On the contrary, this kind of fresh-keeping cabinet will not be able to drop the temperature of the fresh-keeping cabinet due to the high temperature during the day and night in summer, or due to the large amount of loaded food and the large turnover of food, and the hygiene and safety of the stored food will not be guaranteed.
2. The service life of the air curtain display cabinet
From the structural point of view, the low-quality and low-cost supermarket fresh-keeping cabinet has no integral steel frame. A six-door cabinet is composed of a two-door cabinet and a four-door cabinet. The door frame is assembled after the cabinet is foamed, and such a fresh-keeping cabinet cannot withstand multiple movements. Door frames fall off within a few years and are difficult to repair. From the perspective of materials, low-quality and low-cost fresh-keeping cabinets, supermarket fresh-keeping cabinets are made of whatever materials are cheap, and stainless steel is replaced by stainless iron or aluminum plate, copper pipes are replaced by aluminum pipes or composite steel pipes, and ABS engineering plastics are replaced with ordinary ones. plastic. The material of the fresh-keeping cabinet has become thick and thin, and copper has become iron, and its performance and service life are shortened, which is reasonable and reasonable. In particular, it should be pointed out that the low-quality and low-cost fresh-keeping cabinets and the built-in evaporating tubes of supermarket fresh-keeping cabinets are obviously made of composite pipes (ie steel pipes) coated with a layer of copper, but they dare to say that they also use copper pipes. The compressor used in the low-cost cabinet is a household type with low starting torque, which is not suitable for the frequent opening and frequent starting requirements of commercial fresh-keeping cabinets. The compressor needs to be started repeatedly to run. Due to the low power of the household compressor, the fresh-keeping cabinet will run all day without stopping in the season with high temperature, and the compressor loss is very large. The manufacturer’s practice of replacing commercial compressors with household models has greatly harmed the interests of customers.
3. Expenditure on the use of air curtain display cabinets
Although inferior supermarket fresh-keeping cabinets save some money when they are purchased, they continue to be used for many years. Spend more money. First of all, because the fresh-keeping cabinet is used continuously for many years, the electricity bill is not a small amount. The power consumption is mainly reflected in the thermal insulation performance in terms of the performance of the fresh-keeping cabinet. To achieve good thermal insulation performance, in addition to ensuring the thickness of the thermal insulation layer, it is also necessary to reduce the thermal conductivity of the thermal insulation layer. Only a high-pressure foaming machine with high control precision can meet this requirement. Because the high-pressure foaming machine and the high-pressure foaming fixture have large investment and complex technical requirements, the manufacturers of low-cost fresh-keeping cabinets use free foaming by hand, and the thermal conductivity of the thermal insulation layer is much larger than that of the high-pressure thermal insulation layer. To make matters worse, these low-cost fresh-keeping cabinets fill bricks, stones and a large amount of waste hard foam before foaming, and then pour a layer of foaming material on the surface to deceive consumers. How effective is this insulation layer? Using such a supermarket fresh-keeping cabinet means that it consumes 2-3 kWh more electricity every day than a high-quality fresh-keeping cabinet with the same cabinet temperature, and the difference in purchase price will be consumed in 2 to 4 years, and the more you use it, the more you lose. many. If the volume shrinking account, the service life shortening account, and the repair cost account are all calculated, wouldn’t the cost of buying these inferior and low-priced cabinets be higher?
Maintenance of fruit fresh-keeping cabinets
1. When the supermarket fresh-keeping cabinet is used for the first time, it should be run empty for 1-2 hours. When the operation reaches a stable state, it should be turned off, and then put in food and then turned on;
2. The supermarket fresh-keeping cabinets all use fully automatic digital display numerical control microcomputer thermometers. In order to prevent frequent calls and power failures (or frequent switching on and off) to protect the compressors, the compressors will be delayed for two minutes to start after all products are turned on (although there are delays).
3. The temperature of the supermarket fresh-keeping cabinet has been adjusted and locked when it leaves the factory, so there is no need to adjust it;
4. The supermarket fresh-keeping cabinet When storing items, handle with care, and do not throw items into the cabinet to avoid damage to the inner wall;
5. Keep a certain distance between the front and rear near the cabinet wall, and do not place food too close to the air outlet and goods Appropriate clearance should be reserved when placing, so as to facilitate the convection of cold air and uniform temperature.
6. The ambient temperature of the supermarket fresh-keeping cabinet should be lower than 32°C (the design ambient temperature of the air curtain cabinet is +25°C), and it should not be exposed to direct sunlight or used in the oven room.
7. At least 100MM space is left behind the cabinet of the supermarket fresh-keeping cabinet, which is conducive to the good ventilation of the refrigerator to ensure the cooling effect of the equipment.
8. The power supply of the supermarket fresh-keeping cabinet must use an independent socket, the current capacity of the socket and the power cord should not be less than the number of A specified by our company, and the socket must be reliably grounded;
9. The supermarket fresh-keeping The cabinet power supply generally uses 220V, 50HZ single-phase alternating current (some 380V), the voltage range is 187-242V, when the voltage is unstable, please use a voltage regulator with more than five times the power;
10. Supermarket fresh-keeping cabinets The defrosting is automatically controlled by a microcomputer, and the freezer will automatically stop running and enter the defrosting state (note: it is normal for the temperature to rise slightly during defrosting), and the freezer will automatically perform cooling operation after defrosting.
11. In order to save electricity, the number of opening doors should be minimized and the opening time should be shortened.
