Dynamic News

——

Advantages of wall-mounted chillers

When the summer arrives, it is said that the wall-mounted chiller is good. What are the advantages?
    1. Environmentally friendly products: It is an environmentally friendly product with no compressor and no cold coal. This is to use the outdoor fresh air evaporative cooling principle to cool down and convect the air with the room to achieve ventilation and cooling.
    2, low operating costs, wall-mounted chillers which brand is good, can quickly recover the investment: compared with the traditional compressor air-conditioning series, cool wind wall-mounted chillers, the power consumption is only 10%-12%.
    3, the cooling effect is obvious: in the damp areas (such as the southern region), generally can achieve a significant cooling effect of about 5-9 °C; in particularly hot and dry areas (such as the north, northwest), the cooling rate can reach about 10-15 °C or so.
    4. Low investment cost and no occupation of building area: compared with the traditional compressor air conditioning system, the cost is less than half of it, and the equipment does not occupy any building area.
    5, keep indoor air clean, clean and hygienic: doors and windows open for exhaust is a major feature of evaporative air-conditioners, wall-mounted air coolers, fresh air replacement methods make people always in a natural environment, no traditional air conditioning belt The sense of incompatibility.
    6, easy to maintain and install: the system is simple, easy to install and maintain quickly, without the need for professional maintenance personnel.
    7, to prevent air dry: it can moisturize the skin, and has certain benefits to the skin.
    8. Low noise and low vibration: At present, the air conditioner in the domestic similar products has low noise, which allows us to get a fresh and natural cool wind without knowing it; the body itself does not dissipate heat to the periphery.

Comparison of air outlet performance of air cooler

The air cooler is a summer refrigeration equipment that has been commonly used by our manufacturers. There are various types of air coolers. If we are careful, we will find that the way the air blows out of the air cooler is different. The air outlet of the air cooler is determined by the air outlet.
    Regarding the air outlet, the air cooler has three different air outlet modes, namely, the bottom air outlet, the side air outlet, and the top air outlet. Among them, the bottom wind is the most commonly used. Which kind of outlet is better? The following analysis of the application of different air outlets for environmentally friendly air conditioners will tell which one is the most suitable.
    1. The most commonly used air outlet type air cooler is the most common, the main reason is because its effect is relatively better than the other two. Compared with the side wind, the chiller at the bottom of the wind has a more wet curtain than it is, and it is self-evident that the effect is good or bad. For the top wind, although it also has four wet curtains, there will be one more elbow when installing, and it is near the air outlet, which will inevitably generate a lot of resistance and greatly affect the work of environmentally friendly air conditioners. effectiveness. Therefore, the opportunity to get out of the wind and cold wind is the most commonly used.
    2. Let's take a look at the side air outlets and the top outlets. Any enterprise that installs the air cooler, the first consideration is the cost of the installation. Although the effect of the bottom air is the best, if the installation of the air-conditioned workshop is located in the middle of the floor, then if you install the bottom air, you have to build a long duct. This will not increase the installation cost, so it is believed that the resistance generated by such a long air duct will not be small, and the effect will be much lower when the wind is transmitted to the workshop. At this time, if the installation side is out of the wind, only one shelf needs to be hung next to the window of the workshop, so that the contrast is obviously good for the side. Let's say that the wind is coming out. If the workshop is on the ground floor, then it will be more worthwhile to install the bottom wind. It is the best choice to install the top wind.
    Finally, make a summary, no matter which kind of air outlet of environmental protection air conditioner, according to the actual situation, the choice is right.

Various functions of negative pressure fans

The negative pressure fan is designed using the principle of air convection and negative pressure ventilation. The function is very powerful. It is generally installed outside the shop window, generally chooses the downwind, draws the wind out, and extracts the odor gas; it is mainly used in high temperature or smelly workshops, such as heat treatment plant, casting factory, plastic factory, aluminum profile factory, shoe factory, leather goods factory. , electroplating plants, various chemical plants; and employee-intensive enterprises: such as garment factories, various assembly workshops, Internet cafes; and horticultural greenhouses to cool down the greenhouses, livestock farms to cool down; and especially suitable for places that need to cool down and need a certain humidity: Such as cotton spinning mills, wool spinning mills, weaving mills, chemical fiber mills, warp knitting mills, knitting mills, and other textile mills, warehousing and logistics, including multi-smoke, sultry odor kitchen and canteen. Any machine with improved ventilation can improve the cooling effect by 90%-97%.

1. Agriculture: Negative pressure fans were used in greenhouses for farming, and orchids, or clock plants, used negative pressure fans.
2, animal husbandry: extended by the greenhouse seeds, is the use of animal husbandry. It is well known that the environment of chickens, ducks and pigs directly affects the yield and survival rate. In other words, the quality of the environment is related to the income of livestock.
3, industry: garment factory, shoe material factory, toy hardware factory, etc., negative pressure fans can be seen everywhere in various industrial fields.
4, public places: the common canteen is basically installed negative pressure fan, low cost and high efficiency, but also can improve the dense environment of dense population. There are also some shopping malls, auditoriums, stadiums, stations, hospitals, etc. can be used.
The negative pressure fan has very good effect and high efficiency. The blinds are automatically closed and closed to achieve dustproof, waterproof and beautiful appearance. It can be used for both air blowing and ventilation. It is the best choice for cooling and ventilation in modern workshops. The environmentally-friendly and energy-saving negative pressure fan will become the mainstream of the ventilation and cooling equipment market.

How does the air cooler defrost?

The defrosting of the air cooler plays an important role in the refrigeration process. Because the fins of the air cooler are extremely easy to block, when the fins are frosted, the cooling capacity of the fins is reduced and the cooling effect is affected. So how does the chiller defrosting? Let's look at it together. Ningbo City Air Cooler, Ningbo Air Cooler




   Manual defrost: There is also a balance between labor costs and operating expenses. Due to the different types of goods stored in each refrigeration plant, the packaging situation is different, and the speed of frosting of the pipes varies greatly. Therefore, the time interval of manual defrost can only be determined according to the specific conditions. The scientific practice is to apply the frost layer. The thickness provides a comprehensive and economical defrost cycle by comprehensively analyzing and comparing the operating electricity cost and the defrosting labor cost of the system. The specific analysis idea is that the accumulated operating cost of the frost layer thermal resistance in a reasonable defrost cycle is exactly equal to the labor cost of a defrosting.

   Ethylene glycol defrosting: The refrigerator uses a hot glycol defrosting method, which uses the heat generated by the compressor exhaust to heat and store the glycol in the heat exchanger to the storage tank, and the defrosting is required by the pump (cooling fan) , aluminum tube) evaporator, while closing the normal night, return valve. When the temperature of the evaporator rises, the frosting layer on the surface of the evaporator is melted or peeled off; the pre-cooling tank adopts a hot air melting method, which sends the high-pressure high-temperature gas discharged from the compressor to the evaporator to release the heat and defrost. The method of melting frost is economical and reliable, and the maintenance and management is convenient, and its investment and construction are not difficult.

   Electric defrosting: Electric defrosting is the use of an electric heating tube arranged in the cooling fan to heat the fins to melt the frost layer. This method is simple in system and more convenient in operation. However, the cooling heat exchanger has an electric heating tube of about 40~100W per square heat exchange area, which consumes too much electricity, and has a great influence on the fluctuation of the storage temperature. The power of the frost electric heating tube is very large, the quality of the heating tube is not good or the use time is long, it is easy to burn out or even cause a fire, and the electric heating frost has serious safety hazards.

   Water defrosting: Water blasting is a method of spraying water onto the outer surface of the evaporator by means of a water pump or a water spray device, so that the frost layer is melted by the heat of the water and washed away. Water rushing is a very effective defrosting method because of its simple operation and short time. In a cold storage with a very low temperature, after repeated frosting, the water temperature is too low, which will affect the effect of the frosting; if the frost is not cleaned within the set time, the frost layer may change after the cooling fan works normally. It becomes an ice layer, making it harder to make the next frost.

   Hot working fluid defrosting: The hot working defrosting is a superheated refrigerant vapor with a higher temperature discharged by a compressor. After passing through the oil separator, it enters the evaporator and temporarily uses the evaporator as a condenser, using the hot working fluid. The heat released during condensation melts the frost layer on the surface of the evaporator. At the same time, the refrigerant and lubricating oil originally accumulated in the evaporator are pressurized or gravity-discharged into the defroster drain bucket or the low-pressure circulation bucket by means of the hot working fluid. When the hot gas is defrosted, the load of the condenser is reduced, and the operation of the condenser can also save part of the electric energy. It can be seen that the thermal defrosting is the most economical way of defrosting the air cooler.