This standard is mainly used for the formulation of standards, compilation of technical documents, writing and translation of professional manuals, teaching materials and books. GB/T 2900.46-1983 Electrical terminology Steam turbine and its accessories GB/T2900.46-1983 standard download decompression password: www.bzxz.net

National Standard of the People's Republic of China
Electrical Terminology
Steam Turbine and Its Accessories
Electrotechnic al terminologySteam turbineadauxillaryeqalpmentsUDC 621.125
GB 2900.46—83
This standard is mainly used for the formulation of standards, the compilation of technical documents, the writing and translation of professional manuals, teaching materials and books. This standard specifies the special terminology of steam turbine and its accessories. The terminology used in various standards related to steam turbine and its accessories must comply with GB2900.1-82 "Basic terminology of electrical terminology", this standard and the national standards for terminology of various electrical professions. Any terminology not specified in the above standards may be specified in various standards and technical documents. 1 Steam turbine
1.1 Types and models
1.1.1 Steam turbine, steam turbine
steam turbine
A rotary power machine with blades that expands steam and converts heat energy into mechanical energy. It is a type of turbine machinery. 1.1.2 Impulse turbine
impulse turbine
A steam turbine in which steam expands mainly in the nozzle or stationary blades. 1.1.3
Reaction turbine
A steam turbine in which steam expands in both the nozzle (or stationary blades) and the moving blades. 1.1.4 Condensing turbine
condensing lurbine
A steam turbine in which steam expands in the turbine and performs work before being discharged into the condenser. 1.1.5 Back pressure turbine
back pressure turbine
A steam turbine with exhaust pressure higher than ten atmospheric pressures. Extraction turbine
extraction turbine
A steam turbine with adjustable extraction.
Exhaust steam turbine
exhaust stcam turbine
A steam turbine that uses low-pressure exhaust steam from other steam equipment or low-match steam produced as a by-product in industrial production processes as a working medium. Saturated steam turbine:
saturated steam turbine, wet steam turbineA steam turbine that uses saturated steam as a working medium.
Multi-pressure steam turbine
multipressure tur binc
National Bureau of Standards 1983-1028 Issued
1984-06-01 Implementation
GB 2800.46—83
A steam turbine that supplies steam of different pressures to different pressure sections in the same steam turbine. 1.1.10 Axial flow turbine
&xial flow turbine
A steam turbine in which the steam flows basically in the axial direction. 1.1.11 Radial flow turbine
radial flow lurbine
A steam turbine in which the steam flows basically in the radial direction. 1.1.12 Subcritical (pressure) steam turbine
subcritical pressure turbineA steam turbine in which the main steam pressure is close to the critical pressure. 1.1.13 Supercritical (pressure) turbine
supercritical pressure turbine A turbine with a main steam pressure higher than the critical pressure. 1.1.14 Regenerative turbine
regenerative turbine
A turbine that extracts steam from the intermediate stage of a condensing steam turbine to heat boiler feed water. 1.1.15 Reheat turbine
reheat turbine
A turbine in which steam is drawn out during the expansion process for reheating and then returned to continue expanding. 1.1.16 Single-shaft (system) turbine
tandern compound turbine
A turbine in which the shafts of the cylinders of a multi-cylinder turbine are connected in series to form a shaft system. 1.1.17 Double-shaft (system) turbine
cross compound turbine
A turbine in which the shafts of the cylinders of a multi-cylinder turbine are separated into two shaft systems. 1.1.18 Power generation turbine, power station turbinepower generation turbine
A steam turbine that drives a generator.
1.1.19 Drive turbine
Mechanical-drive turbine
A steam turbine that drives various industrial machinery. 1.1.20 Industrial turbine
Induslrial steam turbine
A general term for drive turbines in various industrial enterprises and power station turbines for generating electricity. 1.1.21 Marine steam turbine
Marine steam turbine
A steam turbine used for ship propulsion or driving auxiliary machinery. 1.1.22 Super posed turbine
A back-pressure steam turbine in which the exhaust steam is used as the working medium of other steam turbines. 1.2 General terms, principles and design
1.2.1 Throttle governing
throttle governing
Control valve opening to change steam flow and parameters to control turbine power. 1.2.2 Nozzle governing
nozzle governing
GB 2900.46—83
Control nozzle opening quantity to change steam flow to control turbine power. 1.2.3 Bypass governing
by pass governing
Control by bypass valve to adjust turbine power. 1.2,4 Electro-hydraulic control
electro-hydraulic control
Control by hydraulic actuator to control turbine operation after comprehensive amplification of electrical signals such as pressure, power and speed of steam turbine. Full admission
fullarc admission
The method of steam admission through nozzles distributed over the entire circumference. 1.2.6 Partial admission
partial arc admission
The method of steam admission through nozzles on part of the circumference. 1.2.7 Admission
degree of admission
The ratio of the arc segment occupied by the nozzles in the partial admission stage to the entire circumference. 1.2.8 Main steam
main steam
Steam before the main steam valve of the steam turbine.
1.2.9 New steam
initial steam
Steam before the nozzle group after the regulating valve
1.2.10 Reheat steam
reheat steam
Steam extracted from the steam turbine and heated in the boiler reheater. 1.2.11 Extraction steam
extraction steam
Steam extracted from the intermediate stage of a steam turbine.
1.2.12 Regenerative extraction steam
Regenerative extraction steam Steam used to heat boiler feed water.
1.2.13 Regulated extraction steam
Regulated extraction steam
Steam extracted from a steam turbine and maintained within a certain pressure range. 1.2.14 Exhaust steam
exhaust stearm
Steam exhausted from the exhaust cylinder of a steam turbine.
1. 2. 15 Bark pressure
The pressure of steam exhausted from a back-pressure steam turbine. 1.2.16 Warming up
warming
GB 2900.46—83
The process of turning the steam turbine and sending a small amount of steam to heat its parts evenly. 1.2.17 Cooling down
cooling shut down
The process of shutting down the steam turbine while cooling it down by lowering the steam pressure and temperature. 1.2.18 Vacuum break
vacuum break
The process of opening the vacuum break valve to allow air to enter the condenser in order to shorten the idling time when the steam turbine is shut down. 1.2.19 Starting
starting
The process of increasing the speed of the steam turbine from a stationary state to an operating state. 1.2.20 Cold starting
cold slarting
The steam turbine is operating when its metal temperature is close to room temperature or in accordance with the design requirements. 1.2.21 Hot starting
hot starting
The steam turbine is started again after its metal temperature has not dropped to the cold starting temperature after being shut down. 1.2.2 Starting characteristic curve of steam turbine
starting characteristic curve represents the relationship curve between various variables of the steam turbine (such as unit temperature rise, expansion, etc.) and speed or time during startup. 1.2.23 Initial load
initial load
The minimum generator power maintained within a specified time in the initial stage after the steam turbine generator set is connected to the grid. 1.2.24 Rate of load up
The amount of load increase within a single time period.
1.2.25 Oil whipping
The resonance phenomenon caused by the natural vibration of the bearing oil film and the natural vibration caused by the deflection of the steam turbine rotor. 1.2.26 Centering support system
A system for keeping the various components of the steam turbine stator in the center position during thermal expansion or contraction. 1.2.27 Dead center
Dead center
The reference point when the stator expands relative to the lower foundation. 1.2.28 relative dead center
relative dead center
reference point of the rotor relative to the static expansion. 1.2.29 idle time
idle time
time required for the turbine to completely stop rotating from the moment the steam supply to the turbine is cut off at rated speed. 1.2.30 minimum load operation
minimun load operation
GB 2900.46-83
operation at the minimum load that can be operated safely and continuously. 1.2.31 load limited operation
load limited operation
operation by controlling the opening of the regulating valve through the power limiter so that the load does not exceed the given value. 1.2.32 no-load operation
no-load operation
operation of the unit idling at a specified speed without power input. 1.2.8 speed governing operation The operation of increasing or decreasing the load of the unit through the action of the regulating system to control the frequency of the power system. 1.2.34 phasing operation The operation of the steam turbine generator set with reactive power to improve the small power factor of the power grid. 1.2.35 upper-limit of speed regulator The upper limit of the speed regulation range of the speed regulator 1.2. 36 lower-limit of speed regulator The lower limit of the speed regulation range of the speed regulator. 1. 2. 37 slatic balancing The process of adjusting the mass distribution of rotating parts so that the deviation of the center of gravity measured in the non-rotating state from the geometric center is less than the allowable range.
1.2.88 dynamic balancing
dynamic balancing
The process of adjusting the mass distribution of the rotor so that the unbalance of the forces and couples measured in the rotating state is less than ten permissible limits.
1.2.39 rigid rotor
rigid rotor
A rotor with an operating speed lower than the first critical speed. 1.2.40 flexible rotor
A rotor with an operating speed higher than the first critical speed. 1.2.41 manual tripping
manual tripping
The action of emergency stopping by manually actuating the safety system. 1.2.42 electromagnetic tripping
soleniod tripping
The action of stopping by tripping due to electromagnetic action. 1.2.43 Overspeed tripping
overspecd tripping
The action of shutting down due to overspeed of the steam turbine. 1.2. 44 Main steam parameters, inlet steam parameters main steam condition
GB2900.46—83
General term for the pressure, temperature, humidity, etc. of the main steam. 1.2.45 Final parameters: exhaust steam parameters
end condition
General term for the pressure, temperature, humidity, etc. of the exhaust steam. 1.2.46 Rated parameters
rated steam condition
Main steam parameters and final parameters given during design. 1.2.47 Main steam flow
Main steam flow
The amount of steam entering the main steam chamber of the steam turbine.
1.2.48 Stage
Stationary grating and moving grating are the basic working units that can complete or convert steam energy. 1.2.49 Thermodynamic process line; condition process line condition curve
From the initial state to the final state, it represents the process line of the state points of each stage in the steam turbine on the flame diagram. 1.2.50 Isenlropic enthalpy drop: ideal enthalpy drop
isenlropic enthalpy drop, ideal enthalpy drapa: a. In the isotropic process, the difference in flame value between the initial static point and the final static point (isotropic static drapa); b. In the isotropic process, the difference in melting value between the initial stagnation point and the final stagnation point (isotropic stagnation drapa); c. In the isotropic process, the difference in value between the initial stagnation point and the final stagnation point (isotropic stagnation drapa); c. In the isotropic process, the difference in value between the initial stagnation point and the final stagnation point (isotropic stagnation drapa). 1.2.51 Actual enthalpy drop
actual enthalpy drop
During the expansion process of a steam turbine (or stage), the difference between the stagnation state and the final state after deducting the dynamic loss, stator loss, residual speed loss, leakage loss, blast loss, wheel friction loss, etc. 1.2.52 Degrre of superheat
The value of the steam temperature exceeding the saturation temperature at a certain pressure. 1.2.58 Reheat temperature
reheat temperature
The temperature of steam at the inlet of the reheat valve.
1.2.54 Reheat pressure
reheat pressure
The steam at the inlet of the reheat valve.
1.2.55 Feed water temperature
Feed water temperature at the outlet of the last heater. 1.2.56 Residual velocity
leaving-velocity
The absolute velocity of steam when it leaves the turbine stage. 1.2.57 Reheat factor
The ratio of the sum of the steam reduction of each stage of a multi-stage steam turbine to the steam reduction of the whole machine is called the reheat factor. 1.2.58 Shafting
GB 2900.46—83
The whole system consisting of the main shaft and the driven shaft of the steam turbine. 1.2.59 Steam bending stress
steam bending stress
Bending stress caused by the force of steam acting on the blades 1.2.60 Flow passage
The general term for the whole steam flow passage and components in the center of the steam turbine body from the regulating valve to the cylinder exhaust port. 1.2.61 Degree of reactian
The ratio of the constant direct drop from inlet pressure to outlet pressure to the constant direct drop of the stage in a moving blade. 1.2. 62 Blade profile
Blade profile
The cross-sectional shape of the lower working part of a stationary or moving blade. 1. 2. 63 Cascade
Cascade
The combination of blades arranged in a certain pattern. 1.2.64 Blade height
Blade height
The height of the working part of a blade.
1. 2. 65 Blade width*
Blade width
The vertical distance between the front lines of the inlet and outlet steam edges of the cascade. Note: The front line refers to the line connecting the corresponding points of the inlet steam edges of each blade profile in the blade profile. 1. 2.66 Chord length*
The length of the projection of the blade on the chord line.
1. 2. 67 Pitch*
The distance between corresponding points on two adjacent blades in the blade cascade along the frontal line. 1.2.68 Stagger angle*
The sharp angle between the chord line and the frontal line of the blade.
1. 2. 69 (Blade) Inlet angle*
Biade inlet angle
The angle between the tangent of the biade line at the leading edge point and the frontal line of the blade cascade. Note: The biade line of the blade refers to the line connecting the centers of all inscribed circles in the blade. 1.2.70 (Blade) Outlet angle*
blade outlet angle
The angle between the tangent of the blade profile arc at the trailing edge point and the blade cascade line. *See Appendix A.
1.2.71 Throat opening
GB 2900.46-83
The minimum width of the passage between adjacent blades of the blade cascade. 1.2.2 Throat area
throat area
The minimum passage area between adjacent blades of the blade cascade. 1.2.73 Area ratio; Blade area ratio
area ratio
The ratio of the throat area of ​​the moving blade cascade to the throat area of ​​the stationary blade cascade. 1.2.74 Relative pitch
relative pitch
The ratio of pitch to chord length,
1.2.75 Aspect ratio; Relative blade height
aspect ralios relative blade heightThe ratio of blade height to chord length.
1.2.76 Inlet angle
flow inlet angle
The angle between the direction of the absolute [relative] velocity of the steam flow at the inlet of the stationary [moving] blade cascade and the frontal line. 1.2.77 Outlet angle
flow outlet angle
The angle between the direction of the absolute [relative] velocity of the steam flow at the outlet of the stationary [moving] blade cascade and the frontal line. 1.2. 78 Flow coefficient
flow cocfficient
The ratio of the actual flow rate through the stationary blade (or moving blade) to the theoretical flow rate. 1.2.79 Velocity coefficientwwW.bzxz.Net
velocity coefficjent
The ratio of the actual velocity of the steam leaving the stationary blade (or moving blade) to the theoretical velocity. 1.2. 80 Speed ​​ratio
velocily ratio
. The ratio of the circumferential velocity at the average diameter or each specified cross section of the steam turbine stage to the ideal steam flow velocity of the stage: b. The ratio of the circumferential velocity at the average diameter or each specified cross section of the steam turbine stage to the steam flow velocity at the exit of the stationary blade (nozzle).
1.2.81 Blade diameter length ratio
blade diameter length ratio
The ratio of the average point diameter of the stage to the blade height. 1. 2. 82 Velocity triangle
velocity triangle
The loss diagram of the steam flow velocity at the inlet and outlet of the moving blade according to a certain ratio. 1.2. 83 Profile loss
profile loss
Energy loss caused by friction and detachment in the boundary layer of the blade profile, vortex phenomenon in the wake, etc. 1.2. 84 End loss
blade-end loss
Due to the influence of the end wall boundary layer and secondary flow, the loss of each section at the blade end exceeds the part of the profile loss, which is called end loss.
GB2900.46—83
Note: "Primary flow refers to the secondary flow formed near the two end surfaces due to the existence of the end wall boundary layer. 1.2.86 Static blade loss
Stalionary blade loss
The sum of the static blade surface loss and the end loss. 1.2.86 Moving blade loss
Moving blade loss
The sum of the moving blade surface loss and the end loss (including the influence of the high-speed steam flow ejected from the static blade hitting the edge of the moving blade inlet, the instability of the steam flow, the coverage at the moving blade inlet, the expansion pressure after the steam flow enters the moving blade, etc.). Note: Cover refers to the size of the moving blade exceeding the height of the static blade (or nozzle), including the end gain and the root gain. 1.2.8 Incidence loss
loss
The loss at the blade inlet caused by the inconsistency between the steam inlet angle and the blade inlet angle. 1.2.8Leaving velocity loss
The kinetic energy taken away by the steam flow at the blade outlet. 1.2.89Disc friction loss
Disc friction loss
When the disc rotates, it produces friction with the steam around it and drives this part of the steam to move. A part of the useful work consumed. 1.2.90Windage loss
Windage loss
In the partial steam inlet stage, a part of the useful work consumed by the fan effect when the moving blades of the non-steam inlet part move in the steam.
1.2.91Arc end loss; repulsion loss
Arc end lass
In the partial steam inlet stage, the energy loss generated at the two ends of the steam inlet arc segment. 1.2.9Leakage loss
leakage loss
The loss caused by the leakage of steam through the gap between the rotor and the stator can be divided into partition leakage loss, shaft end leakage loss, blade leakage loss, etc.
1.2.93 Moisture loss
moisture loss
Additional loss caused by the operation of the steam turbine stage in the wet steam area 1, including supersaturation loss, steam flow resistance loss, braking loss and drainage loss.
1.2.94 Shock loss
Shock loss
A kind of energy loss caused by the shock wave generated by supersonic flow. 1.2.95 Throttling loss
throttlitig lass
Steam pressure loss caused by throttling. 1.2. 96 Ideal power
ideal powcr
The mechanical work converted by the isentropic reduction of steam in unit time. 1.2. 97 Internal power
interllal power
GB 2900.46—83
The mechanical work converted from the actual steam drop in the turbine (or stage) in unit time1.2,98Shaft power
Shaft power
The power output at the shaft end of the turbine.
1.2. 99Electrical power
Electrical power
Electrical energy output from the generator line end in unit time. 1.2.100Internal efficiency
internal efficiency
The ratio of the actual drop to the equivalent drop.
1,2.101Wheel efficiency
Wheel efficiency
The ratio of the work done by steam in the moving blades to the equivalent drop of the stage. 1.3 Structure and Components
1.3.1 Main Steam Valve
Main Stop Valve
A valve that allows the main steam to enter the turbine and can be closed quickly. 1.3.2 Steam Chamber
Steam Chest
A chamber set up before the steam from the main steam valve enters the regulating valve to balance the steam flow. 1.3.3 Cylinder
casing
cylinder
The casing that contains the rotor and bears the pressure and is used to install partitions, static bells, etc. 1.3.4
barrel-type casing
especially a cylinder with a horizontal flange in the shape of a cylinder.
t.3.5 Nozzle chamber
nozzle box
The cavity before the nozzle of the regulating valve is opened.
The disc for installing moving blades.
bladed disc
The wheel disc with moving blades.
1.3.8 (steam turbine) main shaft
main shaft
The shaft for the impeller to transmit the turbine power.
rotor body
rotor without blades
rotor without moving blades.
1.8.10 Rotor
GB 2900.46—83
The whole of the rotating parts consisting of the rotor body (or main shaft and impeller), moving blades, etc. 1.3.11 Integral forged rotor
Integral rotor
Rotor forged as a whole and equipped with moving blades. 1..12 Assembled rotor
Assembled rotor
Rotor with an assembled impeller.
1. 3.13 Welded disc rotor
Welded disc rotor
Rotor welded from several forgings and equipped with moving blades. 1.3.14 Nozzle
Nozzle
Part that effectively converts the thermal energy of steam into kinetic energy and plays a certain guiding role on the steam flow. 1. 3. 15 Blade
A part used to change steam flow parameters in the flow section to achieve energy conversion. It is generally composed of a blade root and a blade body with a specific profile.
1. 3. 16 Shroud
Strip metal with or added to the top of the blade. 1.3.17 Moving blade
moving blade
rotor blade
The blade on the rotor.
1.3.18 Stationary blade
Stator blade
The blade on the stationary parts such as partitions and cylinders. 1.3.19 Guide blade
Stator blade that mainly plays a guiding role in the flow passage. 1.3.20 Twist blade
twist blade
The blade whose blade shape and installation angle (or just the installation angle) change according to a certain rule along the blade height. 1.3.21 Straight blade
straight blade
The blade whose blade shape and installation angle remain unchanged along the blade height. 1. 8., 22 Final blade
final Blade
The blade that is installed at the end of the wheel or rotor body and fixed with a special method, and plays a role in locking the row of blades. 1. 3.23 Blade root
blade rot
GB 2900.46—B3
The blade part with a certain size and shape that fixes the blade on the wheel [rotor body] or cylinder [holding ring]. 1.3.24 Spacer
spacer
The part installed between the roots of adjacent blades to maintain the blade pitch and flow channel width. 1.3.25 Locking piece
locking piece
The part that is installed at the end of the cylinder, wheel, etc. and fixed with a special method, and plays a role in locking the blade. 1.3.26 Lacing wire
lacing wire
The metal wire that runs between the blades to play the role of frequency modulation and damping. 1.3.27 Balancing hole
balancing hole
A circular hole evenly arranged on the impeller to reduce the axial thrust of the impulse turbine. 1.3.28 Diaphragm
Two semicircular plates or full circular plates equipped with stationary blades. 1.3.29 Guide blade carrier
The component for installing guide blades.
1.3.30 Stationary blade carrier: The outer edge of the diaphragm
blade carrier
is installed in the cylinder groove, and the inner edge can be equipped with the intermediate supporting parts of the stationary blade or diaphragm. 1.3.31 Exhaust chamber
exhaust chamber
The chamber that guides the exhaust steam into the condenser.
1. 3.32 Crass over pipe
Steam pipe used to connect adjacent cylinders in a multi-cylinder steam turbine. 1.8.33Journal bearing
Journal bearing
Sliding bearing that bears the radial load of the turbine rotor. 1.3.34Thrust bearing
Thrust-bearing
Sliding bearing that bears the axial load of the turbine rotor. 1.3.35Thrust-journail bearing
Sliding bearing that bears both the axial load and the radial load of the turbine rotor. 1.3.36Bearing pedestal
A component mounted on the chassis or foundation of the turbine to support the bearing. 1.3.87Thrust collar
A disc that can transmit the axial thrust of the rotor to the thrust bearing.22 Final blade
final blade
The blade that is last installed in the wheel disc or rotor body and fixed by some special method, and has a locking effect on the row of blades. 1. 3.23 Blade root
blade rot
GB 2900.46—B3
The blade part with a certain size and shape that fixes the blade on the wheel disc [rotor body] or cylinder [holding ring]. 1.3.24 Spacer
tt||The part installed between the roots of adjacent blades to maintain the blade pitch and flow channel width. 1.3.25 Locking piece
locking piece
The part that is last installed in the cylinder, wheel disc, etc. and fixed with it by some special method, and has a locking effect on the blade. 1.3.26 Lacing wire
Metal wire that runs between blades to play a role in frequency modulation and damping. 1.3.27 Balancing hole
Circular hole evenly arranged on the wheel disc to reduce the axial thrust of the impulse turbine. 1.3.28 Diaphragm
Two semicircular plates or full circular plates with stationary blades. 1.3.29 Guide blade carrier
Parts for installing guide blades.
1.3.30 Stationary blade carrier: The outer edge of the diaphragm sleeve
blade carrier
is installed in the cylinder groove, and the inner edge can be installed with the intermediate supporting parts of the stationary blade or diaphragm. 1.3.31 Exhaust chamber
Exhaust chamber
The chamber that guides exhaust steam into the condenser.
1. 3.32 Crass over pipe
The steam pipe used to connect adjacent cylinders in a multi-cylinder steam turbine. 1.8.33 Journal bearing
Journal bearing
Sliding bearing that bears the radial load of the turbine rotor. 1. 3. 34 Thrust bearing
Thrust-bearing
Sliding bearing that bears the axial load of the turbine rotor. 1.3.35 Thrust-journail bearing
Sliding bearing that bears both the axial load and the radial load of the turbine rotor. 1.3.36 Bearing pedestal
A component mounted on the chassis or foundation of the turbine to support the bearing. 1.3.87 Thrust collar
A disc that can transmit the axial thrust of the rotor to the thrust bearing.22 Final blade
final blade
The blade that is last installed in the wheel disc or rotor body and fixed by some special method, and has a locking effect on the row of blades. 1. 3.23 Blade root
blade rot
GB 2900.46—B3
The blade part with a certain size and shape that fixes the blade on the wheel disc [rotor body] or cylinder [holding ring]. 1.3.24 Spacer
tt||The part installed between the roots of adjacent blades to maintain the blade pitch and flow channel width. 1.3.25 Locking piece
locking piece
The part that is last installed in the cylinder, wheel disc, etc. and fixed with it by some special method, and has a locking effect on the blade. 1.3.26 Lacing wire
Metal wire that runs between blades to play a role in frequency modulation and damping. 1.3.27 Balancing hole
Circular hole evenly arranged on the wheel disc to reduce the axial thrust of the impulse turbine. 1.3.28 Diaphragm
Two semicircular plates or full circular plates with stationary blades. 1.3.29 Guide blade carrier
Parts for installing guide blades.
1.3.30 Stationary blade carrier: The outer edge of the diaphragm sleeve
blade carrier
is installed in the cylinder groove, and the inner edge can be installed with the intermediate supporting parts of the stationary blade or diaphragm. 1.3.31 Exhaust chamber
Exhaust chamber
The chamber that guides exhaust steam into the condenser.
1. 3.32 Crass over pipe
The steam pipe used to connect adjacent cylinders in a multi-cylinder steam turbine. 1.8.33 Journal bearing
Journal bearing
Sliding bearing that bears the radial load of the turbine rotor. 1. 3. 34 Thrust bearing
Thrust-bearing
Sliding bearing that bears the axial load of the turbine rotor. 1.3.35 Thrust-journail bearing
Sliding bearing that bears both the axial load and the radial load of the turbine rotor. 1.3.36 Bearing pedestal
A component mounted on the chassis or foundation of the turbine to support the bearing. 1.3.87 Thrust collar
A disc that can transmit the axial thrust of the rotor to the thrust bearing.
Tip: This standard content only shows part of the intercepted content of the complete standard. If you need the complete standard, please go to the top to download the complete standard document for free.