With the improvement of people's living standards, it is imperative to reduce the energy consumption of air conditioning system. General air conditioning system adopts large temperature difference system of cold water. By changing the operation parameters of cold water and cooling water, the energy consumption of transmission and distribution pump is reduced to realize energy saving. In order to realize the energy saving effect of large temperature difference system of cold water, we will analyze the influence of temperature difference of cold water on the performance parameters of card fan coil and put forward corresponding improvement measures.
When the inlet water temperature and temperature difference are not the same, the performance parameters of the card fan coil also show different laws:.
(1) For the same water supply temperature, with the increase of water supply temperature difference, the total heat cooling capacity, sensible heat cooling capacity, latent heat cooling capacity and dehumidification coefficient of the card fan coil unit decrease, while the heat-moisture ratio increases, and the change of sensible heat cooling capacity is relatively slow, the change of latent heat cooling capacity is relatively fast, and the change of total heat cooling capacity is between the two.
(2) The cold water supply temperature of the air cooler coil is reduced, and the influence of the water supply temperature difference on the total heat and cooling capacity, sensible heat and cooling capacity, latent heat and humidity coefficient of the card fan coil will be reduced accordingly.
It can be seen that with the increase of water supply temperature difference, while the cooling capacity of the card fan coil decreases, the dehumidification capacity of the card fan coil also decreases obviously, which easily leads to that the dehumidification requirements of the air-conditioned room cannot be met. From the above analysis, it can be seen that in order to achieve the purpose of energy saving in operation with large temperature difference design, certain measures must be taken to make up for the adverse effects brought by large temperature difference.
(1) Reduce the inlet temperature of cold water and reduce the temperature of chilled water supply, which can improve the dehumidification and cooling capacity of the cassette fan coil, and partially offset the adverse effects of the increase in the temperature difference of cold water supply on the cassette fan coil.
(2) Increase the number of rows of coils and increase the number of rows of cassette fan coils. The fan coil can improve the cooling capacity and dehumidification capacity of the cassette fan coil, and achieve the same effect with small temperature difference.
(3) A spoiler is installed inside the coil to enhance heat exchange to achieve the purpose of reducing the number of water coil rows.
The above is the effect of cold water temperature difference on the performance of the card fan coil and the improvement measures. I hope it can help everyone. As the air-conditioning equipment manufacturing industry, the above factors will be comprehensively considered, energy-saving technology will be integrated into the design to improve the performance of the card fan coil, and continuous efforts will be made to create a more comfortable and healthy life.
The cassette fan coil fan sends the indoor air or outdoor mixed air into the room after being cooled or heated by the surface cooler, so that the indoor temperature is reduced or increased to meet people's comfort requirements. The assembly of the cassette fan coil It is related to whether the air quality can be improved, so we must pay attention to it. Let's simply understand the fan coil:.
Card fan coil unit is mainly composed of low noise motor, coil, etc. The fan of card fan coil unit must pay attention to the selection of motor. When the noise of the unit is detected in static pressure requirements, the motor should not make roar. The size of the wind wheel selected for card fan coil unit should be careful, with more air volume requirements, and be careful not to select too large or too small.
In addition, when assembling the cassette fan coil unit, attention should be paid to the sealing problem of the unit. When the cassette fan coil unit manufactured in this way runs under dry conditions, it can achieve an environment in which there is no condensate, no humidity and no bacteria in the construction room, which can effectively improve the air quality of the air-conditioned room.
The assembly of the cassette fan coil is generally operated by professionals. When we supervise, we also need to have a certain understanding of the contents of the assembly. Therefore, in order to better play the role of the cassette fan coil, the specific assembly work must be done.
Shandong Xingheng Environmental Technology Group Co., Ltd. is located in Luquantun Development Zone, Dezhou, Shandong Province, the hometown of glass fiber reinforced plastic in China. The company has three-level qualification for construction mechanical and electrical installation engineering, three-level qualification for environmental protection engineering, and safety production license. It is the first in the industry to pass ISO9001 quality management system certification, ISO14001 environmental management system certification, OHSAS18001 occupational health management system certification, an axial fan invention patent, a fan utility model patent, EIA, three at the same time waiting for complete procedures