Description
Deeply explore the GH duplex steel and hastelloy screw vacuum pumps suitable for high - performance applications. Understand their technical specifications, product advantages, application cases in the chemical industry, as well as equipment usage, installation, and answers to common questions, and comprehensively master this advanced equipment.
Summary
This article comprehensively introduces GH duplex steel and hastelloy screw vacuum pumps, details the technical parameters of models LG30G/H - LGB180G/H, expounds on the advantages such as corrosion resistance of special materials, shares application cases in the chemical industry, introduces the equipment used, process flow, and installation key points, and answers common questions to help comprehensively understand the product.
Keywords
GH Duplex Steel Screw Vacuum Pumps, Hastelloy Screw Vacuum Pumps, High - Performance Applications, Chemical Industry, Technical Specifications of Screw Vacuum Pumps, Corrosion - Resistant Vacuum Pumps, High - Efficiency and Stable Structure, Safety Production Guarantee, Equipment Installation, Common Questions about Vacuum Pumps
Product Advantages
1. Excellent Corrosion - Resistance Performance
Using special materials such as 2205/2507 duplex steel and hastelloy, it provides more targeted anti - corrosion solutions for various highly corrosive media, effectively extends the service life of the equipment, and reduces maintenance costs.
2. High - Efficiency Alternative Solution
It can completely replace equipment such as water - ring pumps and reciprocating pumps, meet the technological transformation needs of complex working conditions, improve production efficiency, and reduce equipment operation costs.
3. High - Efficiency and Stable Structure Design
The unique structural design ensures that the equipment operates more efficiently and stably during operation, reduces the frequency of failures, and improves production continuity.
4. Multiple Safety Guarantees
The exhaust end adopts a multiple - seal design of oil seal, nitrogen seal, and mechanical seal to escort safe production, effectively prevent gas leakage, and ensure the safety of the working environment.
5. Low - Noise Operation
Precision components are selected to effectively reduce the operating noise of the equipment and provide a more comfortable working environment for operators.
6. Complete After - Sales Support
It provides 24 - hour technical support to ensure that users can get timely solutions when they encounter problems during use, with worry - free after - sales service.
Technical Specifications of GH Duplex Steel and Hastelloy Screw Vacuum Pumps
Case
A chemical enterprise has long been troubled by equipment corrosion problems when producing highly corrosive chemicals. The water - ring pumps used before frequently malfunctioned under the action of highly corrosive media, with high maintenance costs and seriously affecting the production progress. After adopting the GH duplex steel screw vacuum pump (model LGB150G/H), the situation has been fundamentally improved. Its 2205 duplex steel material effectively withstood the erosion of highly corrosive media, and the equipment operates stably. The pumping rate of 150L/S meets the production demand for rapid gas extraction, and the maximum exhaust pressure of 1.2bar ensures smooth gas discharge. The high - efficiency and stable structural design enables the equipment to maintain good performance under long - term high - load operation. The multiple - seal design at the exhaust end effectively prevents the leakage of harmful gases and ensures production safety. The production efficiency of the chemical enterprise has been greatly improved, and the equipment failure rate has been significantly reduced, bringing considerable economic benefits to the enterprise.
Application Field - Chemical Industry
In chemical production, GH duplex steel and hastelloy screw vacuum pumps play a key role in all aspects from the reaction and distillation of raw materials to the drying of products. During the vacuum extraction of the reaction kettle, their stable pumping rate and ultimate full pressure ensure that the reaction takes place in a suitable vacuum environment; in the distillation process, they can efficiently transport various corrosive vapors, ensuring the continuity and stability of chemical production.
Equipment Used
The main equipment is the GH duplex steel and hastelloy screw vacuum pump (such as different models of LG30G/H - LGB180G/H), and it also includes motors, reducers, pipelines, valves, condensers, recovery devices, a cooling system (including a cooling water tank, water pump, etc.), and a nitrogen supply system (for special process requirements).
Process Flow
1. Preparation before Start - up
Check whether all components of the equipment are firmly connected, whether the lubricating oil and grease are sufficient, whether the electrical system is normal, and whether the cooling system and nitrogen system can work properly. Conduct a leak - tightness check on the pipelines and valves to ensure there are no leaks.
2. Starting the Equipment
First, start the cooling system to ensure the normal circulation of the cooling medium, and then start the nitrogen system (if required). Then start the motor and drive the screw pump to operate through the reducer.
3. Operation Monitoring
Real - time monitor parameters such as the pumping rate, vacuum degree, motor current, temperature, cooling water flow rate and pressure, nitrogen system pressure and flow rate to ensure the normal operation of the equipment. According to the process requirements, control the gas flow rate and pressure by adjusting the valves.
4. Stopping the Equipment
First, stop the motor, then close the cooling system and nitrogen system (if they are turned on), and close the relevant valves. Clean and maintain the equipment, check the wear of vulnerable parts, and replace them in a timely manner.
Equipment Installation
1. Foundation Preparation
According to the weight and size of the screw vacuum pump, make a suitable concrete foundation to ensure that the foundation is flat and firm and can withstand the vibration and weight during the operation of the equipment.
2. Equipment Positioning
Use lifting equipment to hoist the screw vacuum pump onto the foundation, adjust the position of the equipment to make its levelness meet the requirements. Connect the inlet and exhaust pipelines well, and pay attention to the slope and tightness of the pipelines.
3. Electrical Connection
Connect the power lines and control lines of the motor according to the electrical schematic diagram to ensure that the electrical connection is correct and safe. Install a grounding device to prevent electric leakage accidents.
4. Connection of Cooling and Nitrogen Systems
Connect the cooling water pipelines to ensure the correct flow direction of the cooling water and good sealing of the interfaces; connect the nitrogen system pipelines to ensure that the pressure and flow rate meet the equipment requirements.
5. Commissioning and Operation
After completing the equipment installation and connection, conduct commissioning and operation. Check the operating status of the equipment, adjust the relevant parameters to make it reach the best working state.
Answers to Common Questions about GH Duplex Steel and Hastelloy Screw Vacuum Pumps
1. How to Select the Appropriate Model of GH Duplex Steel and Hastelloy Screw Vacuum Pumps According to Actual Working Conditions?
Select according to parameters such as the required pumping rate, ultimate full pressure, maximum exhaust pressure, etc., combined with the corrosiveness, temperature, pressure, and other conditions of the actual working conditions. At the same time, consider factors such as motor power and installation space. For example, if the required pumping rate in chemical production is 540m³/h, the LGB150G/H model can be selected.
2. What are the Reasons and Solutions for Excessive Noise during the Operation of GH Duplex Steel and Hastelloy Screw Vacuum Pumps?
Possible reasons include loose installation, insufficient lubrication, and component wear. Solutions include re - tightening the installation components, adding or replacing lubricating grease and oil, and checking and replacing worn components.
3. How to Maintain the Corrosion - Resistance Performance of GH Duplex Steel and Hastelloy Screw Vacuum Pumps?
Regularly check whether there are corrosion signs on the equipment surface, avoid over - temperature and over - pressure operation of the equipment, clean and maintain the equipment at the specified time intervals, and replace the damaged anti - corrosion components in a timely manner.
4. What Problems Need to be Noted When this Series of Screw Vacuum Pumps Replace Equipment Such as Water - Ring Pumps?
It is necessary to consider the adaptability of installation dimensions, the rationality of pipeline connections, the compatibility of the electrical system, etc. At the same time, adjust the process flow and operation specifications according to the performance parameters of the new equipment.
5. How to Maintain the Oil Seal, Nitrogen Seal, and Mechanical Seal at the Exhaust End?
Regularly check the wear of the seals, and replace the seals in a timely manner according to the requirements of the equipment operation manual. Ensure that the lubricating oil of the oil seal is sufficient, the nitrogen pressure of the nitrogen seal is stable, and the sealing performance of the mechanical seal is good.
6. How Often Should the Lubricating Oil and Grease of GH Duplex Steel and Hastelloy Screw Vacuum Pumps be Replaced?
According to the operating time and working environment of the equipment, generally, the lubricating oil is replaced every 1000 - 1500 hours of operation, and the lubricating grease is replenished or replaced every 500 - 800 hours of operation.
7. What to Do if the Cooling Water Temperature is too High during the Operation of this Series of Screw Vacuum Pumps?
Check whether the cooling system is blocked and clean the cooling water pipelines; check whether the cooling water pump is working properly and repair or replace it if necessary; increase the cooling water volume or reduce the inlet water temperature.
8. What is the Function of the Nitrogen System in GH Duplex Steel and Hastelloy Screw Vacuum Pumps?
In some special processes, the nitrogen system is used to provide a protective gas to prevent the medium from contacting the air and causing oxidation, explosion, and other dangers. It can also be used to purge the inside of the equipment to keep the equipment clean.
9. How to Judge Whether the Pumping Rate of GH Duplex Steel and Hastelloy Screw Vacuum Pumps is Normal?
Monitor the pumping rate through a flow meter installed on the pipeline and compare it with the rated pumping rate of the equipment. If the actual pumping rate is significantly lower than the rated value, check whether the pipeline is leaking, whether the pump body is worn, and whether the valve is opened normally.
10. How to Ensure the 24 - Hour Technical Support after Purchasing GH Duplex Steel and Hastelloy Screw Vacuum Pumps?
The manufacturer will provide a special technical support hotline that users can call at any time when they encounter problems. At the same time, the manufacturer will arrange professional technical personnel to provide solutions for users as soon as possible after receiving user feedback, and on - site technical services can be arranged if necessary.
