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First, the Upright Freezer evaporator has more air or refrigerated oil, and the heat transfer effect is reduced. More refrigerant oil is attached to the heat transfer tube of Upright Freezer evaporator, and the heat transfer coefficient is greatly reduced. Similarly, if there is more air in the electric heating pipe, the heat transfer area of the refrigerated cabinet evaporator will be reduced, the heat transfer efficiency will be significantly reduced, and the temperature reduction rate will also slow down.

Second, the frost or dust of the Upright Freezer evaporator is too thick, and the heat transfer effect is reduced. Another main reason for the slow temperature drop of the Upright Freezer is the low heat transfer efficiency of the evaporator. This is mainly because the frost layer on the outside of the Upright Freezer evaporator is too thick or too dusty. Because the external temperature of the evaporator is mostly lower than 0 degrees Celsius, the humidity of the Upright Freezer is relatively high, and the moisture in the air is sandwiched with cream or frozen outside the evaporator, which affects the heat transfer effect of the Upright Freezer evaporator.

Counter Top Cooler can be mainly divided into three types: tube type, corrugated plate type and air-cooled type. Among them, the tube-and-tube heat exchanger can be divided into double tube type, vertical type, horizontal type, floating head type, etc. The characteristic of the tube-and-tube heat exchanger is that the water used for cooling flows through the inside of the tube, while the oil is Flowing through the distance of the tube, the centrally arranged folding plate allows the oil to baffle, and the two-way or even four-way movement method it uses makes its cooling effect more intense; the corrugated plate heat exchanger can also be divided into herringbone and oblique corrugation It mainly uses the contact points placed in the corrugated structure, which allows the fluid to form turbulent flow when the flow rate is not high, which greatly improves the heat dissipation effect; the air-cooled heat exchanger can be divided into direct type and fixed type. It has the characteristics of simple structure, small size, light weight and convenient use. Next, we will take the tubular heat exchanger as an example to explain the working principle of the heat exchanger.

The tubular Counter Top Cooler is mainly composed of two parts: the outer shell and the inner heat exchanger body. The outer shell includes a cylinder, a water divider cover and a water return cover. There are oil inlet pipes, oil outlet pipes, water inlet pipes, and water outlet pipes, and are attached with oil drain, drain, exhaust screw plugs, and zinc rod device holes. Thermometer interface, etc. The heat exchanger body includes heat exchanger tubes, fixed orifice disks, movable orifice disks, baffles, etc. The two ends of the heat exchanger tube are connected with the fixed and movable orifice disks, and the fixed orifice disk is connected with the outer body flange. The movable orifice disk can be freely elastic in the outer body to eliminate the influence of temperature on the heat exchanger tube due to thermal expansion and contraction. . The baffle can enhance the heat transfer and support the heat exchanger tube.

The heat medium of the tube-and-tube Counter Top Cooler flows from the receiving inlet on the cylinder to the receiving outlet in a zigzag manner through the baffle channels. The heat exchanger medium adopts double-pipe-pass activity, that is, the heat exchanger medium enters half of the heat exchanger tubes from the water inlet through the water divider cover, and then flows from the return water cover into the other half of the heat exchanger tubes, and enters the other side of the branch. Water cover and outlet pipe. In the process of double-pipe pass flow of the cold medium, the waste heat released by the absorbing heat medium is discharged from the water outlet, so that the working medium maintains the rated working temperature.

1. It should be placed in a place away from heat sources and direct sunlight. Because it needs to exchange heat with the outside during work, it will dissipate heat to the outside through the condenser. The higher the ambient temperature, the slower the heat dissipation, which will cause commercial refrigerators and refrigerators. The longer the working time, the higher the power consumption and the poorer cooling effect.

 2. It should be placed in a place with low humidity. Since the shell of the refrigerator, condenser and compressor are all metal materials, if the air humidity is too high, these parts will rust and shorten the service life of the refrigerator. At the same time, humid and overheated environment will cause condensation on the surface of the freezer and affect the performance of electrical appliances.

 3. It should be placed in a well-ventilated place. If the freezer is full of debris or is too close to the wall, it is not good for heat dissipation and will affect the cooling effect. There should be a space of at least 30cm on the top of the refrigerator, and a space of at least 10cm on the back and sides to facilitate heat dissipation.

 4. It should be placed on a flat and solid ground and the compressor should be kept level. This is not only for safety, but also makes the compressor work smoothly, reducing vibration and noise.

 5. It should not be placed in a place where the temperature is too low. Because the temperature is too low, it is difficult to start the compressor, and the refrigeration of the freezer compartment of the refrigerator is poor, which cannot be overcome. The refrigerator can turn on the temperature compensation switch of the refrigerator compartment.

 6. It should not be placed in an environment with flammable, explosive and corrosive materials. At the same time, do not place such items inside.

 7. Do not place heavy objects on the top of the refrigerator to prevent the objects from falling due to the switch and causing injury to the family. 5 Upright Freezer is better or horizontal type is better Vertical type refrigerator and horizontal type refrigerator are not only different in form and structure, but also different in function types. In addition to direct cooling with air, the cooling method can also be indirect cooling with water as the refrigerant. The storage of food in the horizontal freezer is easy to accumulate, which is not as convenient as the vertical freezer. However, the open door method of the horizontal freezer reduces the loss of cooling capacity. The structure is simpler than the vertical freezer and the price is cheaper.

 We can feel the advantages of Upright Freezer from its appearance. The main point is to save space and not occupy space. It can also meet various temperature requirements of food. A major feature of the horizontal freezer is that the product has a good flat display effect and the products in the cabinet are at a glance. This feature makes it favored by major shopping malls and supermarkets.

One, Upright Freezer's cooling performance

The performance of refrigeration is mainly based on the comprehensive evaluation of the refrigeration effect and cooling speed of the freezer. As long as these two aspects can meet certain standards, it can be regarded as a freezer with better refrigeration performance, just like if we store it in a freezer. When there is a lot of food, you can observe the refrigeration effect of the freezer to see how long the food in the freezer can achieve the effect of low temperature preservation. The vertical Upright Freezer has the advantage that it is beneficial to us to store food, and it is better to choose the right one The temperature range preserves our food. Today's refrigerators will use vertical microcomputer temperature control technology and electronic microcomputer-designed temperature controllers. The temperature controller can automatically adjust the overall temperature of the refrigerator to ensure the freshness and safety of the food stored in the refrigerator. .

2. Understand the energy-saving issues of Upright Freezer

The power consumption of refrigerators is a problem that many businesses who need refrigerators will consider. They will give priority to some low-energy refrigerators. In fact, I tell everyone that they are not necessarily low-energy refrigerators. We use them as good ones. The actual demand. Although some refrigerators have relatively low energy consumption, their power is also relatively small. If we want to store more food when we use it, the power of the refrigerator will not meet the requirements and the cooling requirements , Affect our use, when we choose the freezer, we should not deliberately pursue the lowest power consumption of the freezer, so as not to affect our use.

Three, Upright Freezer design

At present, when people buy freezers, they actually see the overall appearance of the freezer at first glance to see if the appearance can meet our requirements. Especially commercial freezers are used in supermarkets and convenience stores with a relatively large flow of people. Locally, the aesthetic appearance is very important, but the practicality of the freezer must also be considered, and whether the raw materials used in the freezer can be durable and corrosion-resistant.