Air conditioning unit performance optimization measures In order to ensure that all types of air conditioning units, fan coils can fully play their performance in operation, to meet energy, environmental protection, comfort and other requirements, designers should cooperate with the manufacturer to make product selection and Match work. There are mainly the following aspects: accurate system calculation, reducing fan energy consumption and noise, and improving the operation stability of the air-conditioning system cause the unstable operation of the air-conditioning system, most of which is caused by improper selection of air-conditioning equipment. To solve this problem, we need to accurately calculate the air volume and system resistance loss of the air conditioning system. At the same time, the equipment manufacturer should assist in the equipment selection according to the cold load, the loss of pipeline resistance and the place of use, or separately determine the air cooler and fan of the air conditioning unit according to actual needs.
High-efficiency and low-noise fans are selected. At present, there are many wind turbine manufacturers that are compatible with air-conditioning equipment in China. The performance of the wind turbines is different. To ensure that the fans are operated in an efficient and low-noise state, it is recommended to establish a wind turbine information base and then perform the performance of different types of wind turbines. The curve is fitted, and the computer can select the fan with the highest efficiency and the minimum power required in the model. Then compare the different types of fans to optimize the selection of the fans. The balance and size of the fan and pulley are determined. The pulley drive of the fan is used in a large number of applications in the combined air conditioner. However, the selection of the pulley has not yet attracted the attention of the design and manufacturing units.
At present, the wind turbine manufacturer balances the impeller of each fan, and the dynamic balance of the pulley is often neglected, which makes the combined air conditioner often have vibration and bearing damage, which affects the normal operation of the air conditioner. Therefore, it is recommended that the wind turbine manufacturer should perform a dynamic balance test on the pulley. The correct use of the forward multi-wing fan has the characteristics of high wind pressure and small size. Therefore, under the same size conditions, it has the advantages of low rotation speed and low noise. Most of the combined air conditioners provided by foreign manufacturers are equipped with forward multi-wing type fans, which are currently widely used in domestic air conditioning systems. Since the characteristic curve of the forward multi-wing type fan is not the same as that of the backward vane type fan, attention should be paid to the design. Therefore, when using a forward multi-wing type fan, the designed air volume and wind pressure should be as accurate as possible, and it is not appropriate to blindly increase the safety factor, which is more important than the backward blade type fan.
Improve the structure of the air-conditioning unit and reduce the air leakage rate According to the national standard, when the static pressure of the combined air conditioner is 70Pa, the air leakage rate of the unit should not exceed 3%. According to foreign data, the air leakage rate is 10%, and the fan shaft power Increase by 3%; thus, it can be seen that reducing the air leakage rate is an important condition for ensuring energy-saving operation of air-conditioning units. However, the air leakage phenomenon of the domestic combined air conditioner is generally serious. The air leakage point is generally in the four corners of the unit, the bottom plate, the functional section connection, etc. The main reason is that the unit structure design is unreasonable, the sealing material quality is poor, and the site installation is not Pay attention to balance and so on. Excessive air leakage rate not only affects the temperature and humidity requirements in the room, but also increases the power consumption. The air conditioning unit is one of the important components of the centralized air conditioning system. To fully utilize its performance and meet the requirements of energy saving, environmental protection and comfort, it is necessary to cooperate in design and manufacture.
Mingguan Company is an auto parts manufacturer integrating R&D, production, sales and service. The company specializes in the production of automotive fan motors. The products are divided into truck series, van series, pickup series, Toyota series, general series, Honda series, Chery series, Nissan series, micro-car series and ultra-thin motor series according to the type of vehicles. The products are matched with many domestic OEMs and exported to Europe, America, Southeast Asia, Australia, Africa and other places.
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