Tahser CompressorsTAHSER Screw Compressor Units

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INTRODUCTION

© 417
• Air-End (Screw) © 417
Air-End

Air-End is the heart of screw compressors. It compresses air by displacing between male and female rotors and Air-End's case.
 
• Advantages of Tahser © 417

Tahser 401

  • PLC based controller, graphical operation&display panel.
  • All settings can be done via operation&display panel. No mechanical settings.
  • Real time clock based trouble monitoring and recording ability.
  • Remote control and monitoring via modem (optional).
  • Spin-on separators. Up to 4000 hours separator life.
  • Automatic belt tensioning system.
  • Very low noise and vibration levels while running.
  • High quality cooler and fan.
  • Simple, less and standard spare parts.
  • High productivity, low electric consumption.
  • Full dismountable, easy reach, esthetics frame and enclosure.
  • Safe designed construction.
  • Service easiness.
 
Also:
  • Advantages of after sale services based on Tahser’s service experiences.
  • Warranty advantage.
• Suction Regulator © 417
Suction Regulator
Suction regulator controls the quantity of air which will be sucked by the Air-End, depending on air pressure and running conditions. Consequently, it regulates the compressed air delivery of the Air-End. When the suction regulator's air intake valve is open, the Air-End delivers compressed air with maximum capacity. That is called as "running on load". When the air intake valve is closed, the Air-End delivers compressed air with minimum quantity, only for internal control cycle. That is called as "running off load".
 
• Tahser Screw Compressors © 417
Tahser 301
Stationary (electrical), single stage, oil injected rotary screw compressor units.
 
Running Principle:
When the compressor unit has been started, the compressor runs off load till the main motor completes it's startup. Then, the suction regulator's air intake valve opens and the compressor begins to run on load. When the system pressure reaches to minimum output pressure level, minimum pressure valve opens and compressed air passes to the unit's outlet. While running on load, if the output air pressure  increases to the upper limit, suction regulator's air intake valve closes and the compressor begins to runs off load. In this phase, there is no compressed air delivery from the minimum pressure valve. And, there is only an internal circulation air pressure before the minimum pressure valve, in the sytem. When the output air pressure decreases to lower limit, the compressor unit loads itself again, begins and continues to running on load till the next upper limit signal occurence. Also, upper limit pressure is called as maximum working pressure. As a safety addition, there is an over pressure switch circuit which stops running of the compressor if the system pressure overs maximum working pressure setting due to any control failures. In Tahser compressor units, pressure values are monitored by transducers which send analog signals to the PLC. The PLC performs required function depending on analog signal which represents related pressure values. In addition to analog pressure inputs, a pressure switch is used as over pressure saffety device which sends on/off signal directly to the controller. Also, an analog signal based temperature monitoring is performed to protect system against over working temperatures etc.
 
• Separator © 417
Separator Element
For oil injected screw compressors, air compression performed by Air-End with help of oil. Also, the oil absorbes heat which is resulted from air compression and it lubricates the Air-End's rotor bearings. So, it is required to separate oil from air and to cool oil before returning it into the Air-End, again. Separator is a filter which separates air from oil and delivers air to the out, prevents oil to pass from inside to out.
 
• Minimum Pressure Valve © 417


Air-End delivers oil mixed compressed air to the oil reservoir tank, then to separator. The compressed air passes through the separator and comes to the minimum pressure valve. Minimum pressure valve prevents air to pass the compressor unit's outlet when the system pressure is under the minimum circulation pressure. It is required to keep system internal pressure at minimum level by preventing it to be less than oil circulation and suction regulator control pressure level. Also, it is useful for keeping separation pressure which prevents excessive air and oil flow through separator. In addition to above functions, minimum pressure valve is a non-return valve and prevents compressed air flow on reverse direction, from the unit's outlet to system inside.
 

• Oil-Air Cooler © 417

In oil injected compressor units, oil performs compression sealing, lubricant and cooling fluid functions.  It absorbes heat while compression stages in the Air-End. It is necessary to cool oil to the normal level via oil cooler for keeping compressor's running temperature within proper limits. Oil is cooled by circulating it through an air cooling type oil cooler. Then, cooled oil returns into the Air-End injection port after passing through oil filter.  In addition to oil coooling, compressed air is cooled just before coming to the compressor unit's outlet or just after compressor unit's outlet. The main purpose of compressed air cooling is to condense moisture in compressed air then to drain the condenstate more easily. And, to reduce the load of the compressed air dryer unit if it will be used.
 
 


Contact address for business and technical information:

E-Mail: info@tahser.com

Address:
Dereboyu Cad. Yonga Sokak No:5 Halkali / Kucukcekmece /ISTANBUL

Posta Kodu ( Zip Code ) : 34303

Tel: 00 90 212 485 30 00
Fax: 00 90 212 485 83 82