Development status:
Colloid mills are widely used in various fields of national economy and people's livelihood. Due to the need to meet the requirements of various working conditions, the variety of colloidal mills is huge. China's colloid mill manufacturing industry is very large. There are thousands of colloid mill manufacturers throughout the country. At present, China has become one of the countries with the largest amount of colloid mill production and market demand in the world.
Most colloidal grinding industries in China are small and medium-sized enterprises. There are less than 10 companies with an annual output value exceeding 100 million yuan. Even if compared with other domestic machinery industries, there is a big gap between equipment and technology. There are very few units that have the capacity to independently research and develop high-end products. Therefore, in the major projects such as large-scale nuclear power, petrochemical, and oil and gas long-distance transmission pipelines, the colloid mills are mainly imported.
development trend:
The theoretical research of colloidal drying technology can be summarized as the low-pressure space, theoretical research of low-temperature heat and mass transfer, and the study of thermal properties and measurement methods. The low-pressure low-temperature heat and mass transfer theory has been studied earlier and the results are relatively obvious. The recognized colloidal grinding models can be summarized into three types: (1) The steady-state model (URIF) of the uniform ice back interface proposed by Sanda11 et al. in 1967. (2) The quasi-steady state model proposed by Dryer et al. in 1968; (3) Adsorption-sublimation model proposed by Litchield et al., 1979.
All of these models can describe the process of colloidal grinding, but they all have their own shortcomings. They describe the heat transfer process is more accurate and describe the error of the mass transfer process. The main problem is that the solid-vapor phase transition occurs during the mass transfer process. The water vapor is transmitted through the porous channel. The length of the channel changes with time and is an unsteady process. The structural dimensions of the porous channels are also related to the pre-freezing speed and the material structure of the colloid milled product. No new breakthroughs have been seen in recent research reports.
Metal Body Square Water Cooling Tower
This series of products run stable, low noise, energy-saving, in office buildings, shopping malls, hotels, residential areas and other central air-conditioning supporting the use of better results.
The company's standard cooling tower according to the international design conditions design, can also provide customers with non-standard operating conditions or specific sizes under the special, special design.
The circulating water pump suction port shall be located below the water level of the cooling tower catchment basin, and the cooling tower outlet pipe shall not be allowed to be higher than the maximum water level of the catchment basin.
Pipe mounts should be pipe racks and cooling towers should not be allowed to directly bear the weight of the pipes.
The rehydration pipe of the cooling tower should be provided with a support stand to avoid vibration of the pipe when the float valve is rehydrated.
Rehydration pressure should be below 5m water pressure, national standard
The flannage pressure is 1.0Mpa.
When two or more units are assembled, our company will provide a connecting balance tube to balance the chassis water level. The tower top inlet should be set with a conditioning valve in order to enter each
.The water level of the tower is uniform.
The noise is measured at dm1.13VL-W at the equivalent diameter of the cooling tower (Dm1.13VL*W), 1.5 meters above the ground height, wherein L and W are the shape rulers of the tower
inch long and wide).
The use of cellular continuous blister series of diversion,heat dissipation, water collection three-in-one native filler, the whole suspension, gravity cloth water, low drop of water, with cold effect
High, low energy consumption, less drift water, less noise and so on, floating water rate is less than 0.001%.
When connecting different types of towers, the bottom basin water level height of different types of towers must be taken into account, and the base height must be adjusted to maintain the water level balance of the towers.
Metal Body Square Water Cooling Tower,Tower Water Cooler,Water Cooled Cooling Tower,Tower Cooling System
Wuxi Ark Fluid Science Technology Co., Ltd. , https://www.fangzhouarkfluid.com