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Mechanical causes of small air separation unit fin heat exchangers

Mechanical causes of small air separation unit fin heat exchangers
Plate and fin heat exchangers in actual operation will have a certain degree of fouling, corrosion and blockage problems, resulting in uneven distribution of logistics, due to the harsh operating environment, the heat exchanger will usually have a certain degree of tilt, received inertial forces and gravity double impact, the uneven distribution of logistics is significantly more serious than the horizontal state.
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Jul 10, 2020
On the morning of July 9, Zhao Wenfeng, director of Kaifeng Science and Technology Bureau, led deputy director Ma Lingzhi, deputy director Zhao Zhenxi
Jul 01, 2020
On July 1, it was reported that Liu Yuxia, section chief of Kaifeng Market Supervision and Administration Bureau, and leaders of Shunhe District Quali
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1500/100 Y-type solution for small air separation plant in new material industry
The new material industry system of our country has been initially formed and the development situation is good. With the introduction of national strategic planning such as "The development plan of national strategic emerging industries in the 13th Five-Year Plan" and "The development plan of new material industry in the 13th Five-Year PlanThe new material industry system of DEAR air separation has been initially formed and the development situation is good. With the introduction of national strategic planning such as "The development plan of national strategic emerging industries in the 13th Five-Years Plan" and "The development plan of new material industry in the 13th Five-Years Plan", it has created a good policy environment for the development of new material industry. Recently, DEAR air separation cooperated with clients on the 1500/100 Y-type project of small air separation plant. The overall design of the project is reasonable, and the one-time drive is successful, and all the
4500/4500-type solution for small and medium-sized air separation plant in nonferrous industry
According to the influence and reform of the general environment of the non-ferrous industry, the problems faced by this industry are becoming more and more serious, and the control of production capacity is particularly important. Recently, the 4500/4500 type small air separation equipment project signed with customers by DEAR Air Separation, through the trial run stage, all the technical indicators have reached or exceeded the design standard, and have been continuously sending nitrogen for several days, which has been well received by users.
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When the output pressure of turbine air compressor is constant, when the flow rate decreases to a certain value, surge will occur. Therefore, it is necessary to control the flow rate of the turbine air compressor and prevent its flow value from entering the surge zone. However, when the system resistance increases, the flow rate will surely decrease, which makes it possible for the flow value to enter the surge zone. Therefore, the common solution is to add a bypass valve from the outlet to the inlet or vent. When the turbine air compressor is normal, the valve is closed. The flow rate is reduced to a certain value, and then the flow through the turbine air compressor is increased.
Mar 14, 2025
In the air separation plant, the adsorption capacity of the adsorbents is expressed by static adsorption capacity and dynamic adsorption capacity. The static adsorption capacity is the largest amount of adsorbed substance when the adsorbents per unit mass (or unit volume) reach the adsorption equilibrium under certain temperature and certain concentration of absorbed components, that is the ratio of the maximum adsorptive capacity (equilibrium value) that can be reached by the adsorbents to the adsorbents. The dynamic adsorption capacity is the adsorptive capacity when the absorbents reach the "conversion point" (expressed by the average adsorptive capacity per unit of absorbents in the adsorber ). Generally, it is calculated by "conversion time", that is, the time from the fluid contacting the absorbents layer to the "conversion point. "Turning effect point" is the point where the concentration of absorbed component increases obviously when fluid flows out of the absorption layer. ...
Mar 03, 2025
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