What pump is used to transport liquid alkali?
In the chemical, pharmaceutical, water treatment and other industries, the transportation of liquid alkali (such as sodium hydroxide solution) is a common requirement. Due to the highly corrosive and highly viscous nature of liquid caustic soda, choosing the right pump is crucial. This article will combine the hot topics and hot content on the Internet in the past 10 days to give you a detailed introduction to pump selection, precautions and market mainstream products for transporting liquid alkali.
1. Characteristics of liquid alkali and requirements for pumps
Liquid caustic soda (NaOH solution) usually has the following characteristics:
| Features | influence |
|---|---|
| Strongly corrosive | The pump body material is required to be corrosion-resistant |
| High viscosity (when concentration is high) | It is necessary to choose a pump type suitable for high viscosity liquids |
| Easy to crystallize | Need to prevent clogging |
2. Pump types suitable for transporting liquid alkali
Based on recent industry discussions and practical applications, the following pump types are best suited for transporting liquid caustic soda:
| Pump type | Advantages | Disadvantages | Applicable scenarios |
|---|---|---|---|
| Fluorine plastic centrifugal pump | Strong corrosion resistance and smooth operation | Not suitable for high viscosity liquids | Low concentration liquid alkali transportation |
| Pneumatic diaphragm pump | No leaks, can run dry | Traffic is small | Small flow transportation |
| Magnetic drive pump | Zero leakage, high safety | higher cost | high risk places |
| screw pump | Suitable for high viscosity liquids | Maintenance is more complicated | High concentration liquid alkali transportation |
3. Reference for key parameters of pump selection
According to recent industry technology forum discussions, the following parameters need to be focused on when selecting a pump:
| parameters | Recommended value | Description |
|---|---|---|
| traffic | According to process requirements | Generally 5-100m³/h |
| Lift | According to pipeline design | Usually 20-80m |
| temperature | -20℃~120℃ | Requires special materials |
| concentration | ≤50% | High concentrations require special handling |
4. Recommendations for recent popular pump types
According to data from e-commerce platforms and industry websites in the past 10 days, the following pump types have attracted the most attention:
| brand | Model | price range | Features |
|---|---|---|---|
| Southern Pump Industry | NFM50-32-160 | ¥8,000-12,000 | Fluoroplastic lining |
| Grundfos | CR32-5 | ¥15,000-20,000 | Magnetic drive |
| Kaiquan | IHF100-80-160 | ¥6,000-9,000 | Economical and practical |
5. Precautions for use
According to the analysis of recent safety accident cases, special attention should be paid to the following when using liquid alkali pumps:
1.Check seals regularly: Liquid caustic soda leakage may cause serious injury
2.Avoid idling: Dry running will damage the pump body
3.Antifreeze in winter: Liquid caustic soda crystallization may cause damage to the pump
4.Supporting protective measures: It is recommended to install a leak alarm device
6. Maintenance suggestions
Referring to recent industry technical articles, the maintenance cycle recommendations for liquid caustic soda pumps are as follows:
| Project | cycle | content |
|---|---|---|
| Lubrication check | monthly | Replenish grease |
| Seal inspection | quarterly | Replace wear parts |
| Comprehensive overhaul | every year | disassembly inspection |
7. Future development trends
According to recent industry exhibition information, the technological development directions of liquid alkali transfer pumps include:
1.Intelligent: Equipped with IoT sensors to achieve remote monitoring
2.New material applications: Such as ceramics, special plastics and other more corrosion-resistant materials
3.Energy saving design: Optimize hydraulic model and reduce energy consumption
Choosing a suitable liquid alkali transfer pump requires comprehensive consideration of media characteristics, process requirements, budget and other factors. It is recommended that users consult professional technicians before purchasing to conduct detailed working condition analysis to ensure the accuracy of selection.
check the details
check the details
en
