Air Cooler Water Pump Manufacturers

Core knowledge of air cooler pumps

I. Definition of air cooler pumps

Air cooler pumps are an important part of air coolers (evaporative cooling fans). Their main function is to drive the water in the water tank to circulate. During the operation of the air cooler, the water pump extracts the water in the water tank and transports it to the evaporative wet curtain to keep the wet curtain moist, thereby achieving heat exchange between air and water and achieving the effect of cooling. It can be said that it is one of the "power sources" for the air cooler to complete the refrigeration cycle.

II. Working principle of air cooler pumps

Air cooler pumps mostly adopt the centrifugal working principle. When the water pump is started, the motor drives the internal impeller to rotate at high speed, and the blades on the impeller will push the water body to move in a circular motion. Under the action of centrifugal force, water is thrown from the center of the impeller to the edge, forming a high-pressure water flow and discharged from the outlet to the evaporative wet curtain. At the same time, a low-pressure area is formed in the center of the impeller due to the water flow being thrown out. The water in the water tank is continuously sucked into the center of the impeller through the water inlet pipe under the action of atmospheric pressure, thereby realizing the continuous circulation of water.​

III. Common types of air cooler water pumps ​
1. What are the characteristics of submersible pumps? ​
Submersible pumps are a common type of air cooler. They are placed directly in the water tank of the air cooler. Its advantages are easy installation, low noise during operation, and the ability to directly transport water from the water tank upward to the cooling pad. However, due to long-term immersion in water, it has high requirements for its waterproof performance and needs to be sealed to prevent internal components from being damaged by moisture. ​
2. What are the characteristics of single pumps? ​
Single pumps are usually installed outside the water tank of the air cooler and are connected to the water tank through pipes to extract water. Its structure is relatively independent, maintenance and repair are relatively convenient, and the power selection range is wide, which can meet the needs of air coolers of different specifications. However, compared with submersible pumps, its noise during operation may be slightly louder, and the connection sealing of the pipes also needs to be considered during installation. ​
3. What are the types of air cooler water pumps according to the power supply method? ​
According to the power supply method, air cooler water pumps can be divided into AC pumps and DC pumps. AC pumps generally use 220V household AC power, with high power and strong pumping capacity, but relatively high energy consumption, which is suitable for large air coolers. DC pumps are mostly powered by 12V or 24V low voltage, with low energy consumption and good safety. They can also be matched with renewable energy systems such as solar energy, and are often used in small or portable air coolers. ​

IV. Key technical parameters of air cooler pumps ​
1. What is the significance of head to air cooler pumps? ​
Head refers to the vertical height to which the water pump can transport water, in meters. It directly determines whether the water pump can smoothly transport water to the top of the evaporative wet curtain to ensure that the wet curtain is fully wetted. If the head is insufficient, the water may not be able to reach the height of the wet curtain, affecting the cooling effect of the air cooler. Therefore, a water pump with a suitable head needs to be selected according to the height of the air cooler. ​
2. What is the effect of flow on the cooling effect of the air cooler? ​
Flow refers to the volume of water transported by the water pump per unit time, usually in liters/minute. If the flow rate is too large, water may overflow from the wet curtain; if the flow rate is too small, the wet curtain cannot be fully moistened, which will affect the heat exchange efficiency. Therefore, the flow rate needs to match the specifications of the air cooler and the area of ​​the wet curtain to ensure the stability of the cooling effect. ​
3. What is the relationship between power and the performance of the air cooler pump? ​
Power is a parameter that measures the output capacity of the water pump, and the unit is watt. The greater the power, the stronger the pumping capacity and head of the water pump are usually, which can meet the needs of large air coolers or long-distance water delivery, but at the same time, the energy consumption will increase accordingly. The power of the water pump of a household air cooler is generally 10-30W, and the power of the water pump of a commercial or industrial air cooler may be higher. ​

V. Common faults of the water pump of the air cooler ​
1. What may be the reason why the water pump does not pump water?​
The water pump may not pump water for many reasons, such as the water level in the water tank is too low, the water pump cannot suck water; the water inlet pipe or impeller is blocked by debris, hindering the flow of water; the motor failure cannot drive the impeller to rotate; or the internal seal of the water pump is not tight, there is leakage, destroying the vacuum environment, and unable to form effective suction. ​
2. What is the matter with the excessive noise when the water pump is running? ​
The noise is too loud when the water pump is running. It may be that the impeller is worn or deformed, resulting in unbalanced vibration noise during rotation; it may also be that the motor bearing is lacking oil or worn, and the friction increases when rotating, making abnormal noise; it may also be that the water pump and the air cooler casing are not firmly fixed, and resonance occurs during operation. ​

VI. Air cooler water pump maintenance method ​
1. What effect does regular cleaning have on the air cooler water pump? ​
It is very important to clean the water pump regularly. The water pump should be taken out every once in a while to remove debris and scale on the impeller and the water inlet pipe to prevent blockage from affecting water flow. At the same time, clean the dirt in the water tank to prevent impurities from entering the water pump and causing wear and tear to ensure the normal operation of the water pump.​
2. What is the significance of waterproof sealing? ​
For submersible pumps, waterproof sealing is the focus of maintenance. Check the seals of the water pump regularly to see if they are intact. If the seals are found to be aging or damaged, they should be replaced in time to prevent water from seeping into the motor and causing short circuit failures, which will affect the service life of the water pump. ​
3. What is the impact of reasonable use on the water pump of the air cooler? ​
When using the air cooler, pay attention to keeping the water level in the water tank within a reasonable range to avoid idling the water pump in a state of lack of water, so as to avoid damage to the impeller and motor due to dry grinding. In addition, when the air cooler is not in use, the water in the water tank should be drained to keep the water pump in a dry state to prevent corrosion of internal components. ​

VII. Key points for purchasing water pumps for air coolers ​
1. How to choose a water pump according to the specifications of the air cooler? ​
When purchasing, choose a water pump with appropriate parameters based on the size of the air cooler and the area of ​​the evaporative wet curtain. Small air coolers can choose water pumps with low power, moderate flow and head; large air coolers require water pumps with large power, high flow and head to ensure that the water can fully cover the wet curtain. ​
2. How to consider the cost difference of different types of water pumps? ​
Submersible pumps are usually low in cost due to their relatively simple structure and easy installation; single-unit pumps may be slightly more expensive due to their independent structure and easy maintenance. When purchasing, you need to combine your own budget and usage needs. If you are sensitive to noise, you can give priority to submersible pumps; if you focus on maintenance convenience, single-unit pumps may be more suitable.