control air sequenced presentation
TRANSCRIPT
GE Power Systems
Revision Date: 02/10/2000Revision Date: 02/10/2000 Property of Power Systems University- Proprietary Information for Training Purposes Only!Property of Power Systems University- Proprietary Information for Training Purposes Only!
Control Air Overview
GE Power Systems
Revision Date: 02/10/2000Revision Date: 02/10/2000 Property of Power Systems University- Proprietary Information for Training Purposes Only!Property of Power Systems University- Proprietary Information for Training Purposes Only!
Objectives- Control Air System
At the completion of this lesson you will be able to:
• explain its purpose; • identify the key components and their device
numbers, and describe their functions; • and describe the operation.
GE Power Systems
Revision Date: 02/10/2000Revision Date: 02/10/2000 Property of Power Systems University- Proprietary Information for Training Purposes Only!Property of Power Systems University- Proprietary Information for Training Purposes Only!
Designed for the supply of Air which isCleanCoolRegulated PressureUsed for pneumatic control equipment
Control Air Operation
GE Power Systems
Revision Date: 02/10/2000Revision Date: 02/10/2000 Property of Power Systems University- Proprietary Information for Training Purposes Only!Property of Power Systems University- Proprietary Information for Training Purposes Only!
GE Power Systems
Revision Date: 02/10/2000Revision Date: 02/10/2000 Property of Power Systems University- Proprietary Information for Training Purposes Only!Property of Power Systems University- Proprietary Information for Training Purposes Only!
Air is stripped from the compressor discharge casing at AD-3
GE Power Systems
Revision Date: 02/10/2000Revision Date: 02/10/2000 Property of Power Systems University- Proprietary Information for Training Purposes Only!Property of Power Systems University- Proprietary Information for Training Purposes Only!
Air is stripped from the compressor discharge casing at AD-3
The circuit is isolated via solenoid 20AP. This stops water ingress during an off-line water wash.
GE Power Systems
Revision Date: 02/10/2000Revision Date: 02/10/2000 Property of Power Systems University- Proprietary Information for Training Purposes Only!Property of Power Systems University- Proprietary Information for Training Purposes Only!
Air is stripped from the compressor discharge casing at AD-3
The circuit is isolated via solenoid 20AP. This stops water ingress during an off-line water wash.
The air is cooled using a air to air finned cooler. This is enhanced by a forced air fan 88AD-1, which is controlled by temperature switch 26AD-1 (110of ▲).
GE Power Systems
Revision Date: 02/10/2000Revision Date: 02/10/2000 Property of Power Systems University- Proprietary Information for Training Purposes Only!Property of Power Systems University- Proprietary Information for Training Purposes Only!
Air is stripped from the compressor discharge casing at AD-3
The circuit is isolated via solenoid 20AP. This stops water ingress during an off-line water wash.
The air is cooled using a air to air finned cooler. This is enhanced by a forced air fan 88AD-1, which is controlled by temperature switch 26AD-1 (110of ▲).
The air temperature is then tested by
GE Power Systems
Revision Date: 02/10/2000Revision Date: 02/10/2000 Property of Power Systems University- Proprietary Information for Training Purposes Only!Property of Power Systems University- Proprietary Information for Training Purposes Only!
Air is stripped from the compressor discharge casing at AD-3
The circuit is isolated via solenoid 20AP. This stops water ingress during an off-line water wash.
The air is cooled using a air to air finned cooler. This is enhanced by a forced air fan 88AD-1, which is controlled by temperature switch 26AD-1 (110of ▲).
The air temperature is then tested by
• 26AP-1 (45of ▼) Which controls heat tracing
GE Power Systems
Revision Date: 02/10/2000Revision Date: 02/10/2000 Property of Power Systems University- Proprietary Information for Training Purposes Only!Property of Power Systems University- Proprietary Information for Training Purposes Only!
Air is stripped from the compressor discharge casing at AD-3
The circuit is isolated via solenoid 20AP. This stops water ingress during an off-line water wash.
The air is cooled using a air to air finned cooler. This is enhanced by a forced air fan 88AD-1, which is controlled by temperature switch 26AD-1 (110of ▲).
The air temperature is then tested by
• 26AP-1 (45of ▼) Which controls heat tracing
• 26AP-2 (160of ▲) Which will cause a high temperature alarm
GE Power Systems
Revision Date: 02/10/2000Revision Date: 02/10/2000 Property of Power Systems University- Proprietary Information for Training Purposes Only!Property of Power Systems University- Proprietary Information for Training Purposes Only!
• 26AD-1 (110of ▲) Which controls the cooling fan
GE Power Systems
Revision Date: 02/10/2000Revision Date: 02/10/2000 Property of Power Systems University- Proprietary Information for Training Purposes Only!Property of Power Systems University- Proprietary Information for Training Purposes Only!
• 26AD-1 (110of ▲) Which controls the cooling fan
The air is then regulated via VPR67-1 (110 psi)
GE Power Systems
Revision Date: 02/10/2000Revision Date: 02/10/2000 Property of Power Systems University- Proprietary Information for Training Purposes Only!Property of Power Systems University- Proprietary Information for Training Purposes Only!
• 26AD-1 (110of ▲) Which controls the cooling fan
The air is then regulated via VPR67-1 (110 psi)
The air now passes through a manual isolating valve.
GE Power Systems
Revision Date: 02/10/2000Revision Date: 02/10/2000 Property of Power Systems University- Proprietary Information for Training Purposes Only!Property of Power Systems University- Proprietary Information for Training Purposes Only!
• 26AD-1 (110of ▲) Which controls the cooling fan
The air is then regulated via VPR67-1 (110 psi)
The air now passes through a manual isolating valve.
The air is now dried in 34AD-1.
GE Power Systems
Revision Date: 02/10/2000Revision Date: 02/10/2000 Property of Power Systems University- Proprietary Information for Training Purposes Only!Property of Power Systems University- Proprietary Information for Training Purposes Only!
• 26AD-1 (110of ▲) Which controls the cooling fan
The air is then regulated via VPR67-1 (110 psi)
The air now passes through a manual isolating valve.
The air is now dried in 34AD-1.
The 34AD-1 air dryer uses desiccant crystals to accomplish the drying without the use of heat.
GE Power Systems
Revision Date: 02/10/2000Revision Date: 02/10/2000 Property of Power Systems University- Proprietary Information for Training Purposes Only!Property of Power Systems University- Proprietary Information for Training Purposes Only!
• 26AD-1 (110of ▲) Which controls the cooling fan
The air is then regulated via VPR67-1 (110 psi)
The air now passes through a manual isolating valve.
The air is now dried in 34AD-1.
The 34AD-1 air dryer uses desiccant crystals to accomplish the drying without the use of heat.
The output pressure of the dryer is monitored by 63AD-4 (85 psi ▼), producing a low pressure alarm.
GE Power Systems
Revision Date: 02/10/2000Revision Date: 02/10/2000 Property of Power Systems University- Proprietary Information for Training Purposes Only!Property of Power Systems University- Proprietary Information for Training Purposes Only!
• 26AD-1 (110of ▲) Which controls the cooling fan
The air is then regulated via VPR67-1 (100 psi)
The air now passes through a manual isolating valve.
The air is now dried in 34AD-1.
The 34AD-1 air dryer uses desiccant crystals to accomplish the drying without the use of heat.
The output pressure of the dryer is monitored by 63AD-4 (85 psi ▼), producing a low pressure alarm.