The weather in summer is usually so hot that many families turn on the air conditioning 24 hours a day! I think I owe my life to central air conditioning. But you probably don't know about air coolers? According to reports, many enterprises, factories and their public places are using air coolers. What is the reason for this? Can it be said that the cooling effect of air cooler is better than that of central air conditioning? Many people are not very understanding of the air cooler, do not know what the basic principle of the air cooler is, and even do not know how the cooling effect of the air cooler is? Next, Xiaobian will talk to you about the principle of the air cooler and the cooling effect? Why are so many areas using air coolers instead of central air conditioning?

Principle of Air cooler

The cooling principle of air cooler (evaporative air conditioner) is as follows: When the air cooler runs into the cavity and causes negative pressure, the main air passes through the porous structure of the wet curtain surface to drive the dry bulb temperature of the curtain air to close to the humidity of the main air, that is, the dry bulb temperature at the outlet of the air cooler is 5-12℃ lower than the outdoor dry bulb temperature (air dry areas can reach 15℃), the more dry air, the greater the temperature difference, the better the cooling effect. Because the air is brought into the room from the outside all the time, (now called positive pressure system software), so it can keep the air in the room fresh; And because the equipment uses the basic principle of volatile cooling, it has multiple functions of cooling and humidifying (air humidity can reach up to 75%). It is applied in the production workshops of textiles and knitwear, which can not only improve the cooling and humidifying standards, but also purify the air, reduce the rate of needle break in the knitting process and improve the quality of needle textile products.

The air cooler (evaporative air conditioner) is equipped with special materials around the honeycomb wet curtain, has a certain area, according to the water circulation system on the wet curtain continuous humidification; The wet curtain air cooler is equipped with a high efficiency, noise and low energy saving fan. When the centrifugal fan is in operation, the negative pressure of the wet curtain air cooler makes the main air flow through the porous structure of the wet curtain into the fuselage, because the heat absorbed by the moisture evaporation on the wet curtain drives the air passing through the wet curtain to cool down. And because the water in the wet curtain volatilizes to the air flowing through the wet curtain, the ambient humidity of the air is increased, so the wet curtain air cooler has multiple functions of cooling and humidifying.

Cooling effect of air cooler

As far as I am familiar with, air coolers can not be compared with central air conditioning wind cooling capacity, but the price is lower. Compared with the central air conditioning price of 10%~20%, the electricity consumption is only about 2% of the central air conditioning, so it is still deeply attracted to many consumers. In different types of areas in China, the application effect of air cooler is not the same, but the cooling effect is stronger than that of general fans, reducing the temperature by at least 3~8℃. The hotter the climate, the more serious the cooling effect, the higher the wind speed, the better the cooling effect.

Green air coolers can generate fresh air for the company's production workshops and public places, as well as commercial services, games, entertainment and other venues, and can completely cool down the air quickly. This product is characterized by no refrigeration compressor, no refrigerant, no air conditioning copper tube, and its key essence is evaporative wet curtain. The 1.1KW main motor used by this kind of resource-saving device is one eighth of the power consumption of traditional intermediate air conditioning, and its power-saving effect is the company's first choice.

The environmental protection air conditioner cools the air outside the workshop and then sends it to the workshop for cooling. The utility model is provided with an environmental protection air conditioner on the outer wall of the workshop. The environmental protection air conditioner supplies air to the interior of the workshop through a fan. When the fresh air from the outside passes through a wet curtain soaked in water, The air and water are fully contacted, and the sensible heat at the air focus is absorbed to achieve cooling, ventilation and dust removal, and the oxygen content of the air in the workshop is improved. The scheme is especially suitable for high temperature and crowded places.

The cooling curtain system used for the cooling and ventilation of the factory floor sends the air outside the workshop to the workshop for secondary cooling. A cooling water curtain is set at the window opposite or on one side wall of the negative pressure fan in the workshop. Through the cooling water curtain, the replenishing air flowing into the workshop is carried out secondary cooling. The cooling effect of this method is very good with the negative pressure fan. Attention should be paid to the quantity and flow rate of the air flow in the water curtain cooling system should be enough to supplement the quantity and flow rate of the hot air flow out of the workshop. At the same time, the sealing work of the workshop should be done well, and the air flow into the workshop should be ensured as far as possible through the water curtain cooling system.

The negative pressure fan is used for cooling and ventilating the high temperature and sultry air in the workshop. By setting negative pressure fans in the workshop walls and Windows of the workshop, a large number of high temperature and sultry air gathered inside the workshop is forced to the outside of the workshop, resulting in a negative pressure situation inside the workshop, and the air outside the workshop is forced to flow into the workshop for convection ventilation, which reduces the high temperature and sultry air inside the workshop and increases the air flow speed inside the workshop. This method is suitable for the original poor air flow And the whole workshop has high temperature and hot conditions to be solved.

When the air cooler is in normal operation, it is usually used with drinking water. For a long time, it is easy to appear that the key parts of the wet curtain and the water in the chamber have a lot of dirt in drinking water, water residual and the machine itself damaged residue. In order to ensure the actual effect of ventilation and cooling of the air cooler, the following aspects about the correct maintenance of the industrial water cooler can be referred to by everyone.

1. When the air cooler stops using, clean the frost layer and ice block in the finned tube radiator with clean cold water, discharge the water in the inflow tray, and then change the axial flow fan to dry the water;

2. When cleaning the cold air machine, first pull out the power cord plug, loosen the screw, take out the back cover, and then wipe the filter screen and wet curtain neatly with a wet rag. Pay attention to not wetting other components when wiping, so as to prevent corrosion of components;

3. The fan of the air cooler should be placed horizontally, and the area placed should be far away from fire or flammable materials to prevent the machine from being burned down without cause;

4. When the air cooler is used, check whether there is dust and other obstacles in the inlet vent. If there is any obstacle, wipe it with a dry rag and use it again.

5. The cold air machine should be cleaned frequently to avoid the blockage of the antipollution filter net or volatile hole. If the air cooler is used for a long time but is cleaned regularly, it will also lead to the continuous deposition of the machine basin dirt, leading to common faults of the machine, which will seriously affect the application and reduce its service life

Before we apply the wet curtain air cooler, we need to check whether there is dust and other dirt in the reservoir, which should be cleaned 1-2 times in the service life of the year. The water in the pool should be drinking water or other clean water.

1. The centrifugal fan is the heart of the wet curtain air cooler. If there is a fault, the power should be turned off immediately and the electrician should be asked to repair it immediately. When assembling, attention should be paid to connecting the ground wire. When disassembling the centrifugal impeller, the center should be used to prevent the leaf deformation from colliding with the shell.

2. If the float switch of the wet curtain air cooler fails to operate, and there is less water in the pool or overflow water seepage is found, it should be corrected and replaced in time.

3. If it is found that the power supply of the cooling water curtain is not enough or uneven, it is necessary to check whether there is less water in the pool, whether the water pump is running, and whether the small round hole on the water supply pipe road and the water pump inlet part, especially the spray pipe road, is blocked, and check whether the spray pipe road is located in the middle of the cooling water curtain. Normal sprinkling relative height should be more than 80mm.

4. Because the centrifugal fan of the wet curtain air cooler is of low voltage type (negative pressure and gas pressure are small), there is no way to extend the pipeline in the air vent of the industrial air cooler to exhaust air for long distance.

5. The circuit of the centrifugal fan and water pump of the wet curtain air cooler should be centralized control system, and the control circuit should be installed in the room.

6. In winter, when environmental protection air conditioning and industrial air cooler are not needed, the water in the pool should be added to the net, and the shell should be tied up with plastic film or cloth to prevent sand and dust from entering the room. Odor Solution

The first key factor is that the environmental protection air conditioning is not cleaned on time, and the second is because the water body produces mildew. Because of the long-term use of environmental air conditioning, dust accumulated to the top of the filter, for this matter will emit a smell.

7. When the environmental protection air conditioning application for a period of time, the inside of the filter screen and metal sheet will deposit dust, when the dust is too much will cause odor, seriously affect the quality of the air, affect the exhaust air volume.

8. Because the environmental protection air conditioning is cold, there is often some moisture inside, so after the environmental protection air conditioning is turned off, it is not dry manic mildew reduction function of environmental protection air conditioning is immediately slow down, so that the moisture inside will always be in the inside, for a long time, there will be aspergillus flavus and odor formation.