How to improve the operating efficiency of hydrogen compressors?

In today's world, the common problem facing the world is the exhaustion of non-renewable energy and waste of resources. Under the premise of limited energy, how to reduce energy consumption has become a major exploration goal and problem in all walks of life. Manufacturers are studying how to improve the operating efficiency of hydrogen compressors, oxygen compressors and CO2 compressors.

Main point：

Compressor overview and development status

Increase the operating rate of hydrogen compressors

Compressor overview and development status

The compressor types that are now available mainly include piston compressors (mainly with crankshaft connecting rod type), screw compressors, scroll compressors, centrifugal compressors and other compressors with unique structural types, etc. . Their working compression ratio is generally less than 10. This is especially true for the compression ratio requirements of models other than piston compressors. Otherwise, the displacement will be reduced to the point that it loses its normal operation. There are many types of hydrogen-nitrogen compressors, which are widely used in the production of chemical enterprises. Their role is very important and has become an indispensable important equipment. Due to the strong continuity of chemical production, the reciprocating piston nitrogen-hydrogen compressor is taken as an example. In long-term use, there are many reasons for failures that may affect normal production, and it is also likely due to nitrogen and hydrogen leakage at high flow rate. (Electrical generation) or in the event of an open fire, causing a fire hazard, which poses a greater threat to the safety of life and property. Therefore, it was found in time that the fault of the hydrogen-nitrogen machine was dealt with in time, so that the vehicle was not stayed overnight to avoid the breeding and expansion of safety production accidents.

Increase the operating rate of hydrogen compressors

l  Anti-overheating measures

1. According to the nature of the compressed hydrogen ammonia gas, select a high-grade grease with high flash point and low carbon precipitation after oxidation. The oil injection amount is appropriate, and the oil quality analysis, oil replacement, and oil cleaning are determined. The grease used in the hydrogen compressor is supervised during inspection and inspection.

2. Regularly remove dirt during hydrogen compressor operation to ensure smooth cooling water and quality of cooling water. Ensure that the cooling system temperature alarm of the compressor unit and the parking interlock protection device are intact.

3. Always check that the oil-water separator is working properly and discharge the separated oil and water in time.

l  Anti-overpressure

1. The compressor outlet is installed with a good quality single-flow valve instead of the shut-off valve to prevent overpressure caused by the load flow after loading.

2. Set high and low pressure alarms at the inlet and outlet of the compressor and high-voltage over-limit interlock shutdown protection device to realize remote automatic monitoring. Prevent accidents.

l  Hydrogen sulfide corrosion

1. According to the actual situation on site, increase the simple desulfurization device, reduce the hydrogen sulfide content in the medium, and reduce the corrosion of hydrogen sulfide on the internal components of the compressor unit.

2. According to the operating time limit, replace the individual key components of the compressor to prevent corrosion and other potential accidents.

3. The materials, pipelines, fittings, valves, flanges, gaskets, etc. that are in contact with the compressed hydrogen and nitrogen in the booster station are replaced by sulfur-resistant materials.

l  Fire and explosion prevention measures

1. The compressor intake and outlet lines are equipped with automatic shut-off valves. When a hydrogen-nitrogen leak, fire or other accident occurs, the operator can close the shut-off valve in time to cut off the air supply.

2. The booster station adds a flammable gas detection and alarm system to monitor, alarm and interlock the flammable gas leaked during the operation.

3. Regularly perform system testing and leak detection on the booster station.

4. After the compressor overhaul operation is completed, the compressor is manually cranked when the nitrogen is replaced, so that the inlet and outlet valves of the compression cylinder are automatically opened to form a circuit, and the air in the compression cylinder is replaced to ensure hydrogen nitrogen and air during operation. not in contact.

l  Perfect process design

1. Replace the manual control valve of the inlet and outlet of the compressor with an automatic control valve to automatically cut off the air supply and relieve pressure in an emergency.

2. Install bearing vibration monitoring device and vibration high limit alarm and over limit automatic stop device for compressor unit: add bearing temperature intake air temperature monitoring device, temperature high limit alarm, over limit automatic stop device to compressor; add shaft to compressor unit Displacement detection, alarm and over-limit automatic stop device: The compressor dry gas sealing system is equipped with a venting over-limit alarm device: the compressor inlet and outlet increase the high, low pressure alarm and the high jade limit stop device.

As a demand for compressors, people are becoming more and more dependent. Improving the efficiency of compressors means improving production and bringing higher profits to manufacturers.