High-Pressure Compressors
The compressor equipment, given its rugged type of construction, is made available on a larger scale
- to supply compressed air to high-voltage switchgear,
- to charge compressed-air cylinders, and
- for injection-moulding machines and pressure testing systems.
Applications
The A2 HV1 - 100/140 and A4 HV1 - 100/140 compressor installations are stationary air-cooled Vee type reciprocating compressor installations on a welded bedplate, of two-stage or four-stage design, resiliently direct-coupled to an electric motor. Specifically designed as units supplied to high-voltage switchgear installations, they are complemented in the latter by digital or analogue measuring and control instrumentation. Where such compressor installations are to be put to use for other applications they come with appropriate auxiliary devices (digital transducers, pressure gauges, safety relief valves, pressure regulators) as required.Advantages
The reciprocating compressor installation is often preferred as it requires little space. The reciprocating compressor and electric motors are mounted on a welded baseframe. It is not a major effort to place the unit on the prepared foundation and put it into service. Where the equipment is physically located in a closed operating area, care needs to be taken to ensure that the room is adequately ventilated. An AC 3phase motor is used as the driver. Balanced inertial forces in the running gear account for smooth compressor operation. The rugged design of the machines guarantees cost-effective, reliable and safe operation for decades.- Favourable cylinder design permits cooling air flow almost all around the working valves.
- Lubricating oil continuously cleaned by a magnetic filter cartridge to remove abraded metallic matter.
- Advantageous intermediate cooling
- High-intensity cooling air flow generated by a fan impeller driven by the flywheel.
Technical Specifications
| Series | A4 HV1 |
| Model | 100/140:EG-160 |
| Number of cylinders per stage | 2 off |
| Píston diameter | 140/75/45/28 mm |
| Piston stroke | 100 mm |
| Speed | 950 rpm |
| Volumetric flow rate per stroke | 1.333 l/min |
| Volumetric flow rate per stroke | 80 m³/h |
| Volumetric flow rate | 833 l/min |
| Volumetric flow rate | 50 m³/h |
| Final compression pressure | 160 bar |
| Power at coupling | 16.5 KW |
| Weight | 590 kg |
Control of the High-Pressure Compressor
The questions as to which is the correct type of control, and which the proper compressor size, can only be adequately answered once it is known which compressed air volume is required at which time. It is therefore recommended, rather than relying on mere estimates, to conduct measurements and calculations to determine the compressed air demand throughout the working time as closely as possible.
Unlike in previous times, a great variety of potential controls can now be resorted to.
While co-operating with customers, consultative talks are held to address objectives and identify potential solutions such that the appropriate method of control be determined for the given application.
Typically shown here is a revamped PLC control unit for a compressor station comprising three A4 HV1-100/140 compressors.