
The metering pump is a type of pump that can meet the requirements of various strict process flows, and its flow rate can be within0-100%A special positive displacement pump with stepless adjustment within a range, used for conveying liquids (especially corrosive liquids). Metering pumps are also known as quantitative pumps or proportional pumps. The metering pump belongs to the reciprocating positive displacement pump and is used for precise metering. Generally, the stability accuracy of the metering pump is required not to exceed±1%. Generally speaking, there are two types of metering pumps: plunger metering pumps and diaphragm metering pumps.
Plunger metering pumpIt has the advantages of high measurement accuracy, wide adjustment range and high pressure. However, there is leakage at the packing seal. After the packing is corroded and worn, it will affect the measurement accuracy of the pump. The flow rate of this type of metering pump is generally4~4000l/At that time, the pressure is generally around5×105Below par.
Diaphragm metering pumpIts main advantage is that there is no leakage, so it is particularly suitable for situations where leakage is not allowed, such as transporting flammable, explosive, toxic and radioactive media. It can also be used to transport liquids containing solid particles, so its development is very fast. The flow rate of this type of metering pump is generally within2500l/Below a certain time, the pressure is acceptable35Megapascals.
For metering pumps, what we should all pay attention to is daily maintenance and regular inspection of the product. The purpose of doing this is to ensure the normal operation and use of the product. Now let's talk about the points to note in the daily operation and maintenance of metering pumps in winter.
I. Basic Operation
1When starting or stopping the pump, strictly follow the operating procedures.
2Always keep the surface of the equipment and the surrounding environment clean and tidy.
Ii. Winter Maintenance
1. The lubricating oil is in its initial operation250It needs to be replaced after an hour. From now on, every2500Change the lubricating oil every hour or every six months.
2. Check the check valve and diaphragm every six months and decide whether to replace them based on the actual usage conditions.
3. Ambient temperature is lower than100℃At that time, the winter lubricating oil should be replaced.
Iii. Regular Inspection
1Regularly check whether the flow rate, pressure, current and rotational speed meet the requirements.
2Regularly check whether all parts of the equipment are operating normally and whether there are any abnormalities or leaks.
3Regularly check the oil quantity in the transmission garment box, analyze the oil quality, and replenish or replace it in a timely manner as required.
The above are the points to note for the daily operation and maintenance of metering pumps in winter. If you have any questions regarding the operation and maintenance of metering pumps, please consult Beijing Yuanlai Water Treatment Equipment Co., LTD., which focuses on the water treatment industry15In this year, you can trust us!

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