Manufacturer of desulfurizing defoamer. [Xingmiao chemical] continuously launched green environmental protection products to meet the market demand. Other important factors: 1. The water temperature in the working environment is lower than the design temperature (often seen in seasonal changes), which will lead to the degradation of membrane effluent performance. The change of pollutant type, concentration and water viscosity in water quality will also cause the permeability of membrane to be lower than expected. To solve these problems, it is necessary to consider the fluctuation range of low water temperature and water quality in the whole year at the beginning of membrane system design, and reserve a certain safety margin when selecting membrane area. Due to lack of design experience, excessive consideration of cost, insufficient safety margin of selected membrane area, and too high estimation of water production flux of membrane, the membrane can not reach the design capacity. Whether it is UF membrane or R0 membrane, sufficient membrane area must be ensured.
It is possible to change the scale inhibitor properly and frequently, as long as the original product in the system has been washed clean before using the new product. Frequent replacement will not cause instability of the system, as long as the operation is proper. What are the precautions for replacing the reverse osmosis scale inhibitor? I will introduce it to you today. I hope it will help you. In addition, Xiaobian needs to remind you here that before replacing the scale inhibitor, if another brand of reagent has been used before, it is necessary to thoroughly remove the residue of the former reagent to prevent chemical reaction, so as to reduce the efficacy. Some places often burn boilers, especially some manufacturers, so they will buy a large number of corrosion and scale inhibitors, and then remove the scale in the boiler. When the purchase amount is large, we need to do a good job in multiplication and division, but some situations and some people don't particularly understand how to do a good job in related storage. What should we pay attention to in the whole process, including some small details, we need to know something about them, and then we can do better Done.
The device is a fully automatic continuous configuration and dosing system for powdery chemicals. The dry powder agent enters the premixer from the screw propeller at the lower part of the hopper for premixing with clear water, the wetted material enters the preparation tank for dilution and mixing, and the preparation is conducted according to the concentration required by the user; the preparation solution enters the storage tank from the preparation tank through the maturing tank, and when the storage tank level is at a high level, the preparation process automatically stops, and when the solution drops to a low level, the automatic start-up dosing is over Cheng. The mixing tank and the maturing tank are equipped with agitators to fully ensure the dilution and maturing of the agent. The compounding flow and concentration can be determined by adjusting the inflow flow and adjusting the rotating speed of the screw shaft. The device is controlled by PLC, which has high automation, stable performance and simple operation.
Cleaning agent is a large category, there are many kinds, including inorganic cleaning and organic cleaning. The difference between organic cleaning agent and inorganic cleaning agent is simply that organic cleaning agent is a cleaning agent made of carbon containing compounds, and inorganic cleaning agent is a cleaning agent made of carbon free compounds, so they belong to inorganic substances. There are also many kinds of cleaning agents, which are different in different countries. We usually divide them into three categories: water system, semi water system and non water system cleaning agents. The requirements of cleaning agent are different for different oil stains. Therefore, it is necessary to select the appropriate industrial cleaning agent according to the type of oil contamination. In the process of processing, due to the requirements of processing technology (such as cooling, lubrication, abrasive, surface treatment, heat treatment, etc.), the metal has a variety of oil stains.
Nitrogen charging method is to charge nitrogen into the boiler water system and maintain a certain positive pressure to prevent air from entering. Because nitrogen is very inactive and non corrosive, it can prevent boiler shutdown corrosion. Its method is: before shutdown, connect the nitrogen charging pipeline. When the pressure in the furnace drops to 0.5 gauge pressure, Start to send nitrogen from nitrogen cylinder to boiler drum and economizer through temporary pipeline. Requirements: 1. Purity of nitrogen shall be above 99. 2. Nitrogen pressure in furnace shall be above 0.5 gauge pressure when filling nitrogen in empty furnace. 3. When filling nitrogen, all valves of boiler water system shall be closed and tight without leakage. 4. During nitrogen filling protection period, The pressure of nitrogen in the water system and the tightness of the boiler should be monitored frequently. If excessive nitrogen consumption is found, the leakage should be found and eliminated immediately. Disadvantages: strict attention should be paid to the problem of nitrogen leakage, which should be checked on time every day, and problems should be handled in time. This method is only applicable to the protection of short-term out of service boilers