news_news_Shunde District of Foshan City Jinling Kitchen Equipment Co., Ltd.

11-19 

What problems should be paid attention to when transforming a warehouse into a cold storage

In order to store fruits for a long time, many vendors have transformed their original warehouses into fruit fresh-keeping cold storages. However, there are still big differences between warehouses and cold storages. So what issues should be paid attention to when transforming warehouses into cold storages! 1. It is necessary to consider whether the thermal insulation structure of the original warehouse is suitable for cold storage and preservation. Generally, the exterior of the warehouse is made of polystyrene double-layer color steel plates or rock wool boards. This type of structure is not suitable for refrigeration, preservation, and quick-freezing. It is only suitable for storage at 15°C. If it is lower than 15°C ℃, it is recommended to add polyurethane double-sided color steel warehouse board of corresponding thickness in the warehouse. Generally, this kind of warehouse board has good heat preservation effect and high fire resistance level. 2. The bearing capacity of the steel structure at the top of the original warehouse needs to be considered. Some warehouse roofs use arc-shaped round pipe structures, which have limited force and cannot withstand large-area cold storage roofs. This is also the need to pay attention to the transformation. 3. Some warehouses are simple cement floors and are not suitable for reconstruction and construction of cold storage. Therefore, ground insulation treatment needs to be considered. If the temperature is below 0℃, the ventilation pipe must be pre-embedded to prevent the foundation from sinking due to the low temperature. In this way, the bottom material should be extruded board, air- and moisture-proof layer, concrete layer, etc., in short, moisture, water and heat preservation should be done. 4. Consider the carrying capacity of power equipment. Since it used to be an ordinary warehouse, the original power may not take into account the use of later equipment, so we also need to pay attention to power cables. Electricity for cold storage generally requires 380V commercial electricity. Maungsheng Refrigeration does not recommend using 220V for cold storage construction, even small fresh-keeping cold storage is not recommended. The specific cold storage construction uses 200V electricity or 380V electricity can see detailed analysis. 5. It is necessary to consider whether the warehouse can penetrate the wall hole, because the cold storage needs to be connected with the internal unit during installation to ensure its freezing effect. 6. The design of cold storage shelves also needs to consider other factors, such as: the selection of welding electrodes in the cold storage should correspond to the material and welding process requirements of the welding base material and ensure the welding quality of the welds. The characteristics of frosting in the cold storage should be considered, the weight gain should be appropriately considered when calculating the shelf selection, and the customer's refrigeration and defrosting process should be considered for the corrosion resistance of the structural spray coating.

11-19 

Precautions for the use of cold storage

Cold storage refers to constant temperature storage air-conditioning equipment for food, dairy products, meat, aquatic products, chemicals, medicine, seedlings, scientific experiments, etc. In fact, the cold storage is very similar to the refrigerator, but the area of the cold storage is much larger than that of the refrigerator, and the temperature range is wider than that of the refrigerator. The ultra-low temperature freezing of the cold storage is not reachable by the refrigerator, but they have the same refrigeration principle. The following Lengdi Refrigeration will explain to you the precautions for using the cold storage! (1) Under normal circumstances, it is not recommended to manually control the temperature of the refrigeration switch to ensure the appropriate temperature for automatic operation; (2) Regularly check the operation control and temperature changes of the unit by the control cabinet,

01-10 

The importance of cold storage design

Usually, customers will ask the cold storage engineering company to produce a detailed cold storage design plan in the initial stage of consulting the construction of the cold storage. Especially for large-scale cold storage, the design plan is the most important part of the entire cold storage construction process. Today, I will introduce to you the importance of cold storage design.

12-18 

Maintenance methods for horizontal refrigerators and kitchen freezers

Maintenance methods for horizontal refrigerators and kitchen freezers 1. Maintenance method for horizontal refrigerators First, if there are not many items stored, you can place a slightly larger beverage bottle containing salt water in the horizontal refrigerator or kitchen freezer , In this way, the temperature difference inside the cabinet can be balanced, thereby reducing the number of times the compressor is switched on and off, and extending the service life of the compressor. 　　 Second, if horizontal refrigerators and kitchen freezers are open, electric fans and air conditioners should be avoided. The night curtain should be closed during non-business hours. 　　 Third, if the condensers of horizontal refrigerators and kitchen freezers are finned, they should be used every other month or so.

12-18 

The working principle and structure analysis of vehicle-mounted refrigerated cabinet

The working principle and structural analysis of the vehicle-mounted refrigerator 　　 The basic working principle of the refrigerator is the same as that of the general land-based refrigerator, but due to the particularity of the car air conditioner installed on the moving car. The main differences are: 　　First, the general power on land is electricity, and the power for car operation is taken from the car engine; 　　Second, general on-land parking is achieved by controlling the compressor motor circuit to turn on and off, while the car is extended and turned on. Ang controls the power on and off of the windings of this shrinking chamber; 　　 Third, in order to reduce vibration and noise, small refrigerators often use hermetic compressors, while automobile air conditioners are more ineffective than compressor and engine power transmission.

12-18 

What problems should be paid attention to when custom-made commercial refrigerators?

What problems should be paid attention to when custom-made commercial refrigerators? , There are too many things to pay attention to. Should it be refrigerated or stored at low temperature? Which material do you want? 　　Part 1: The refrigeration system part of the freezer This part is the central part of the entire freezer. We have to choose freezer machinery and equipment according to the size, temperature, and storage of the freezer. What needs to be considered at this time is the performance, brand, and quality of the machine. Therefore, the refrigeration company's freezer quotes have high and low points. We need to pay attention to the selection of the unit and the standard configuration of the fan exhaust pipe. The second part: the heat preservation part of the freezer cabinet. At this time, we have to have a certain degree of what heat preservation material to choose.

12-18 

The difference between a freezer and a freezer in a supermarket freezer and a freezer

We don’t distinguish between freezers and freezers in life. Both freezers and freezers play a role in keeping food fresh, but in a strict sense, there is a difference between freezers and freezers: 　　 1. Freezers are used for storage. All kinds of equipment for frozen food, simple frozen food, large space, mostly horizontal structure, generally used in shops or food stores, not suitable for family use 2. Freezer is another name for refrigerators and freezers , Generally divided into two storage spaces, one of the frozen food temperature is below -18 degrees, the other temperature is between 1-10 degrees for short-term food preservation, mostly vertical, suitable

12-18 

Analysis and treatment of electric leakage in the refrigerated cabinet

Analysis and processing of the leakage of refrigerated cabinets. A successful refrigerated display cabinet needs to make full and reasonable use of the unique space; complete the practical functions of the displayed products, beautiful and novel appearance, attract attention, and give people a good impression; it is suitable for merchants CI requirements. For the various display purposes of the refrigerator, the whole structure of the refrigerator also uses all detachable and assembleable parts, without any glue material, a screwdriver can complete the disassembly and assembly of the entire refrigerator, which is convenient for disassembly, assembly and transportation. Wait. 　　 But mostly because the refrigerator has been used for a long time, the parts are aging or damaged, and the condensation in the refrigerator

12-18 

Why can't the refrigerator start immediately after stopping

Reason: In the operation of the refrigerator bai, the suction side of its refrigeration series compressor is called the low pressure side of the dao, and its pressure is slightly higher than the atmospheric pressure of shu. The discharge side of the compressor is called the high pressure side, and the pressure is as high as about 117.7 Pa (12 kg/cm²). The pressure difference between the two sides is very large, and the system on both sides still maintains this pressure difference after shutdown. If it is started immediately, the compressor piston pressure and motor starting torque cannot overcome such a high pressure difference, so that the motor cannot be started and is in a locked-rotor state. The motor winding current will increase sharply and the temperature will increase. If the time is too long, it is likely to burn the motor. .

12-18 

Refrigeration compressor maintenance knowledge

The correct position should be observed when the unit is loaded. At this time, the oil level should not be higher than half; the oil return pipe is blocked; the device of the oil return pipe (the distance from the bottom of the oil separation core) does not meet the requirements; the exhaust pressure is too low when the unit is running; The oil separation core is broken; the internal partition of the separation cylinder is damaged; the unit has oil leakage; the coolant is degenerated or used for an extended period of time. 1 Trouble phenomenon: The exhaust temperature of the unit is high (over 100°C) The coolant level of the unit is too low (should be seen from the oil sight glass but not more than half) The oil cooler is dirty; the oil filter core is blocked; the temperature control valve Failure (bad component) The oil cut-off solenoid valve is not energized or the coil is damaged; the oil cut-off solenoid valve diaphragm is broken