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When steam is introduced to a turbine during start up, drain valves are

fully open. They drain to the condenser until the turbine

reaches a certain load. Once that load is reached, the valves are closed and turbine runs normally.

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11y ago

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Nozzle clearance how to steam turbine?

Steam turbine nozzle clearance is the total energy content available in steam. This is through a valve.


What is actuator in turbine?

Which actually Actuates the Steam Control Valve


How ESV in turbine works?

The Emergency Stop Valve (ESV) in a turbine is placed between the steam engine and the turbine structure. It is designed to rapidly close and prevent steam from reaching the turbine in case of emergency.


Can you tell how emergency stop valve of turbine operates?

Unless it is an electronic governor on the turbine, there is a mechanical overspeed trip device which closes the trip valve (or trip throttle valve [TTV] on small turbines). This device is a spring loaded weighted pin set into the turbine shaft. At a particular set speed (110% of maximum operating speed, typically) the pin overcomes the force of the spring, flying part way out of the shaft and striking the trip mechanism linkage. This linkage up to that point was holding the trip valve open, now with the release of the linkage the spring on the trip valve instantly closes the valve stopping all flow of steam to the turbine. On electronic governors, when the set point on the turbine speed is reached it opens a solenoid valve (which requires a manual reset) which dumps all hydraulic pressure from the trip valve, allowing it to close.


What is main steam stop valve?

Used in power generation. When steam turbine is on-line the Main Steam Stop Valve is fully open. When offline it is closed. Steam to turbine is controlled thru control valves after Main Steam Stop Valve

Related Questions

How do you drain your baseboard radiators?

If there is no drain valve at the radiator you can drain the system at the drain valve on the boiler


how do you drain the how tub?

There should be a drain valve where you can hook up a hose and then open the valve to drain.


What is the function of a wastegate valve?

The function of the wasegate valve is to divert exhaust gases away from the turbine in the engine system. This enables it to control the speed of the turbine.


Nozzle clearance how to steam turbine?

Steam turbine nozzle clearance is the total energy content available in steam. This is through a valve.


What is actuator in turbine?

Which actually Actuates the Steam Control Valve


How ESV in turbine works?

The Emergency Stop Valve (ESV) in a turbine is placed between the steam engine and the turbine structure. It is designed to rapidly close and prevent steam from reaching the turbine in case of emergency.


What is a water drain valve on a jet ski?

It's a valve that allows you to drain the water from a jet ski. It's used after washing the bilge or to drain the bilge after riding.


How to drain raditor?

bottom of rad you will see a small drain valve


Is my hot water heater leaking from the drain valve?

To determine if your hot water heater is leaking from the drain valve, check for water pooling around the valve or any visible signs of water dripping or leaking. If you notice these signs, it is likely that the drain valve is the source of the leak.


What is better a drain pump or a drain valve in a washing machine?

A"drain pump" machine uses a drain tube that is higher than the the level of water in the basin and therefore uses a mechanical pump to empty the tank overthat threshold pipe. A "dump valve" drain uses a mechanical valve at the bottom of the basin and simply opens to drain the tank.


What is the effect of steam turbine control valve throttling in turbine efficiency?

In Boiler follow turbine mode , Boiler produces a constant pressure behind throttling valve and throttling valve adjusts necessary pressure and required steam as High Pressure steam for entering the turbine . In Valves Wide Open (VWO) mode the efficiency is maximum and we haven't any loss. (It's nearly 106% Turbine MCR) . In Turbine MCR , we have a little loss and consequently a little bit worse heat rate . In partial load , loss is more and efficiency worse.


How do you get to the radiator valve to drain coolant on a 2002 Dakota quad cab?

I have a 2001 4.7l. Mine had no drain valve on it. I just took off the lower hose and let it drain that way.