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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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∙ 10y 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
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
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.
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 throttle pressure regulator of a steam turbine?
Essentially its the pressure prior to entering the turbine chamber via the MSV (main stop valve)
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.
