EP3152447A1 - Hydraulische steuereinrichtung für ein schnellschluss-ventil einer dampfturbine und dampfturbinenanordnung - Google Patents
Hydraulische steuereinrichtung für ein schnellschluss-ventil einer dampfturbine und dampfturbinenanordnungInfo
- Publication number
- EP3152447A1 EP3152447A1 EP15730418.9A EP15730418A EP3152447A1 EP 3152447 A1 EP3152447 A1 EP 3152447A1 EP 15730418 A EP15730418 A EP 15730418A EP 3152447 A1 EP3152447 A1 EP 3152447A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- valve
- safety
- connection
- quick
- control device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D21/00—Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for
- F01D21/02—Shutting-down responsive to overspeed
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D17/00—Regulating or controlling by varying flow
- F01D17/10—Final actuators
- F01D17/12—Final actuators arranged in stator parts
- F01D17/14—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits
- F01D17/141—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits by means of shiftable members or valves obturating part of the flow path
- F01D17/145—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits by means of shiftable members or valves obturating part of the flow path by means of valves, e.g. for steam turbines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D17/00—Regulating or controlling by varying flow
- F01D17/20—Devices dealing with sensing elements or final actuators or transmitting means between them, e.g. power-assisted
- F01D17/22—Devices dealing with sensing elements or final actuators or transmitting means between them, e.g. power-assisted the operation or power assistance being predominantly non-mechanical
- F01D17/26—Devices dealing with sensing elements or final actuators or transmitting means between them, e.g. power-assisted the operation or power assistance being predominantly non-mechanical fluid, e.g. hydraulic
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D21/00—Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for
- F01D21/16—Trip gear
- F01D21/18—Trip gear involving hydraulic means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D9/00—Stators
- F01D9/06—Fluid supply conduits to nozzles or the like
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B20/00—Safety arrangements for fluid actuator systems; Applications of safety devices in fluid actuator systems; Emergency measures for fluid actuator systems
- F15B20/001—Double valve requiring the use of both hands simultaneously
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B20/00—Safety arrangements for fluid actuator systems; Applications of safety devices in fluid actuator systems; Emergency measures for fluid actuator systems
- F15B20/008—Valve failure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2220/00—Application
- F05D2220/30—Application in turbines
- F05D2220/31—Application in turbines in steam turbines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/30—Directional control
- F15B2211/315—Directional control characterised by the connections of the valve or valves in the circuit
- F15B2211/31505—Directional control characterised by the connections of the valve or valves in the circuit being connected to a pressure source and a return line
- F15B2211/31511—Directional control characterised by the connections of the valve or valves in the circuit being connected to a pressure source and a return line having a single pressure source
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/30—Directional control
- F15B2211/32—Directional control characterised by the type of actuation
- F15B2211/329—Directional control characterised by the type of actuation actuated by fluid pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/50—Pressure control
- F15B2211/505—Pressure control characterised by the type of pressure control means
- F15B2211/50509—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means
- F15B2211/50536—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means using unloading valves controlling the supply pressure by diverting fluid to the return line
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/80—Other types of control related to particular problems or conditions
- F15B2211/855—Testing of fluid pressure systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/80—Other types of control related to particular problems or conditions
- F15B2211/87—Detection of failures
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/80—Other types of control related to particular problems or conditions
- F15B2211/875—Control measures for coping with failures
- F15B2211/8755—Emergency shut-down
Definitions
- Hydraulic control device for a quick-closing valve
- the invention relates to a hydraulic control device for a quick-closing valve of a steam turbine, in detail with the features of the preamble of claim 1.
- the invention further relates to a steam turbine arrangement.
- Steam turbines for example in power plants, in which live steam is expanded from a boiler and thereby drives one or more turbine stages, must not exceed certain maximum speeds, in particular to prevent damage to the turbine components.
- a clutch break or the like it is known for example from DE 10 2004 042 891 B3 to provide a quick-closing valve which interrupts or reduces the steam mass flow to the turbine in the shortest possible time if, for example, the turbine speed exceeds a predetermined threshold or otherwise a threat of exceeding the maximum speed is detected.
- a quick-acting valve has a working cylinder or actuator which is vented by a hydraulic pressure against a biasing element, such as a spring, to actively open the quick-acting valve as long as the hydraulic pressure overcomes the bias of the biasing element.
- a biasing element such as a spring
- DE 10 2004 042 891 B3 proposes for this purpose a control device for a quick-closing valve of a steam turbine with a module for reducing a Hydraulic pressure by quickly opening a discharge valve, wherein a control valve assembly is provided with at least three safety directional valves, which are hydraulically connected so that they close the quick-closing valve only when at least two safety valves of the control valve assembly have moved to a quick-closing position.
- the control device is designed such that the hydraulic pressure can be reduced almost abruptly when a defined event occurs.
- 2oo3 circuit two out of three).
- a test in particular a so-called partial stroke test of the quick-closing valve are performed by starting, for example, the full or in an operating normal position open quick-closing valve, the hydraulic pressure is first reduced so that the Quick-closing valve completely or at least partially closes, for example, by the working cylinder or actuator performs a full or a partial stroke. Subsequently, the hydraulic pressure is increased again and the quick-closing valve is returned to its original position.
- the function of the quick-acting valve checks and so, for example, a stiffness or sticking, such as by scaling, are detected.
- DE 10 2011 082 599 A1 shows a valve arrangement, as it can be used for example for turbines.
- This valve assembly has 2oo3 logic.
- a first, a second and a third pilot valve are provided, wherein each of these Vorschaltventile controls two safety valves.
- three ball valves are each assigned two inlet valves and two drain valves. In this case, an arrangement is provided that one of the two inlet valves and one of the two drain valves in the first connection branch and the other inlet valve and the other drain valve are arranged in the further connection branch, but the other drain valve is fed to the first connection branch.
- Vorschaltventil according to the prior art is thus associated with a plurality of inlet and outlet valves in different connection branches. If a pilot valve is defective, this therefore affects two connecting branches. A redundant switching technology, such as a "2oo3" circuit is no longer functional.
- the current operation must be interrupted or at least waived the so-called TRIP function.
- the TRIP function consists, for example, of immediately switching off a steam turbine in an emergency. Three safety valves are switched. The triggering takes place via a 2oo3 (two out of three) circuit. This means that the control fluid is shut off for rapid shutdown by actuating at least two safety directional valves.
- the document EP 0433 791 A1 discloses an embodiment with three safety valves in the form of directional control valves with solenoid valves assigned to the safety valves to operate this known. In case of failure of one of the safety valves can be maintained by ab interviewedn the associated actuating valve, the operation anyway.
- the actuating valves serve only as an actuator of the safety valve and have no influence on the flow to the safety valve, which is why an exchange of a single safety valve during operation is not possible.
- the object of the invention is to provide a control device with a quick-closing valve for the operation of a turbine, in which in case of failure of a safety valve this can be replaced during operation.
- a hydraulic control device for a quick-closing valve of a steam turbine with a module for reducing a hydraulic pressure by rapidly opening a discharge valve and / or unloading or loading an actuator for actuating the quick-closing valve wherein in a Radioffensmakerss- and / or guide system, a control valve assembly with at least three safety valves is provided, which are so hydraulically interconnected that they open the outflow valve or load or load the actuator when a safety circuit passed through at least two safety valves of the control valve assembly in a quick-closing position, characterized in that each safety valve an independent of the other safety valves Vorschaltventil is hydraulically connected upstream, such that a respective Vorschaltventil downstream safety valve during operation hydraulically decoupled from this is. Under hydraulic precedence is an upstream arrangement in Strömungshchtung viewed from a pressure source to a pressure sink understood.
- Hydraulicically coupled or “decoupled” includes in particular hydraulically directly or indirectly connected via further connection channels, lines, rooms or intermediate components or a warranty or interruption of a fluidic connection.
- the basic idea of the invention is to associate a safety valve with a pilot valve, wherein the pilot valves are preferably coupled to each other. This makes it possible to replace a defective safety valve during operation.
- the pilot valve which is assigned to the defective safety valve, switches to a position in which the downstream safety valve can be removed, but nevertheless the pending pressure is forwarded, so that ongoing operation is not interrupted.
- the quick-closing function is automatically changed from a 2oo3 to a 1 oo2 (one out of two) circuit.
- This circuit arrangement can also be realized in a single device, so that a compact arrangement is given.
- the three Vorschaltventile are hydraulically coupled together.
- the coupling is preferably carried out in such a way that they are respectively coupled to a connecting line connected to the pressure source and to a connecting line connected to the pressure sink.
- the connection of the pilot valves to a pressure sink and a pressure source or a T and a P- line serves to reduce the P and T connections to a minimum on the hydraulic block.
- T stands for tank and P for pressure source.
- the coupling of the remaining lines is the 1 oo2 switching when operating a Vorschaltventiles.
- the individual ball valves are connected in parallel. This allows an independent of the other Vorschaltventilen operation free of interference with the connection of the other Vorschaltventile with the safety valves.
- the single feed valve preferably has at least two valve positions - a first valve position in which a connection for at least indirect coupling of the feed valve with a pressure source is fluidly connected to a connection for at least indirect fluid communication with a port on the safety valve and a second valve position, in which a connection for the at least indirect coupling of the supply valve with a pressure source is fluidly separated from a connection to the at least indirect fluid connection with a connection on the safety valve.
- the single ball valve is designed as a multi-way valve, in particular 6/2-way valve. This can be realized in a high functional concentration and minimal effort with a component a variety of tasks. By execution as a 6/2-way valve several functions, such as decoupling the safety valve to exchange the same and a connection of the remaining safety valves with a pressure sink (for 1 oo2 switching) by pressing only one valve can be realized.
- the individual safety valve is designed as a safety valve, comprising at least two connections - a connection for at least indirect coupling with a pressure source and a connection for at least indirect coupling with a pressure sink - and with at least two valve positions in a first valve position, the connection to the safety-way valve for the at least indirect fluidic connection with the upstream of the respective safety-way valve In a second valve position, the connection to the safety-way valve for at least indirect fluid communication with the, upstream of the respective safety-way valve upstream fluidly connected to a connection on the safety-way valve for at least indirect coupling connected to a pressure sink.
- the single safety-way valve is designed as a 4/2-way valve, comprising two connections each for fluid connection with connections on the safety directional valve upstream feed valve, a connection for coupling with a pressure sink and a connection for fluidic coupling with a connection to one of the other Vorschaltventile ,
- a test-control valve arrangement with at least one directional control valve arranged in series is additionally provided for carrying out a partial stroke test. Through this test, the function of the quick-acting valve can be checked independently of the control valve arrangement of the safety valves.
- a steam turbine arrangement designed according to the invention with a steam mass flow supply and a quick-closing valve in the steam mass flow feed is preferably characterized by a hydraulic control device associated with the quick-closing valve according to one of claims 1 to 10. This offers not only a redundant valve arrangement, the possibility of replacing one of the safety valves during operation, which increases the overall availability of the system and prevents unnecessary downtime.
- Fig. 1 is a Steuereinnchtung for operating a turbine with a
- FIG. 2 shows a control device according to FIG. 1, but with respect to FIG. 1 with a defective safety-way valve (MV1) and an external outflow valve
- Fig. 3 is a control device according to FIG. 2, but with respect to FIG. 2 with a defective safety-way valve (MV1) and an external outflow valve
- MV1 defective safety-way valve
- Fig. 3 is a control device according to FIG. 2, but with respect to FIG. 2 with a
- Fig. 4 shows a control device according to FIG. 1, but with respect to FIG. 1 with triggered quick-closing valve and an external outflow valve.
- the hydraulic control device 1 for a quick-closing valve 2 of a steam turbine 4 comprises a module M for reducing a hydraulic pressure by rapid actuation, in particular opening a valve, here a discharge valve 1 .6 and / or for loading or unloading an actuator 3 for actuating the Quick-closing valve 2, here to relieve the actuator 3 in the form of a cylinder-piston assembly via the opening of the outflow valve 1 .6 and arranged in a Massivstoffmakerss- and / or guide system 5 control valve assembly 6.
- the control valve assembly 6 has at least two, preferably as in Figure 1 reproduced three safety valves, which are so hydraulically interconnected that they the outflow valve 1 .6 open only when a safety circuit passed through at least two safety valves, here safety valves 1 .5 the control valve assembly in a position which also as SchnellInstitut- Position be is drawn.
- the safety valves are here designed as safety-way valves 1 .5, preferably as electromagnetically actuated multiple-way valves, in particular 4/2-way valves MV 1, MV 2 and MV 3, and characterized by at least two switching positions.
- a first switching position I blocks the connection between a connection to the valve which can be connected to a pressure medium source, in particular pump Pu, and to the pump a pressure sink, in particular tank Ta from, while in the second switching position II, the connection between the connectable to a pressure medium source port on the valve and a pressure sink, or connectable to the pressure sink port on the valve is present.
- each safety valve in particular safety-way valve 1 .5, is preceded by a hydraulic feed valve 1 .4 in the form of a multiple-way valve, wherein the individual pilot valve 1 .4 is designed to permit hydraulic shut-off of the downstream safety valve 1 .5 in at least one valve position.
- Hydraulically upstream means that the safety valve 1 .5 in the flow direction between the pressure source Pu and pressure sink Ta the pilot valve 1 .4 is arranged downstream and between a single pilot valve 1 .4 and a safety valve 1 .5 there is a fluid-conducting connection.
- the single feed valve 1 .4 is characterized by at least two switching positions, wherein one of the two switching positions corresponds to the valve position, which enables a hydraulic shut-off or decoupling of the safety-way valve 1 .5 from the pilot valve 1 .4.
- the illustrated module M comprises in a particularly advantageous embodiment in each case three such safety-way valves 1 .5 and in each case one, one of the safety-way valves 1 .5 upstream Vorschaltventil 1 .4. This ensures that at least two of the safety-way valves 1 .5 must be in the first switching position provided for this purpose in order to realize the quick-closing function.
- control device 1 and in particular the valve positions are shown in normal operation.
- the pump Pu pumps the control fluid in the lines into the primary valves I .4 located in a first position I.
- the single pilot valve 1 .4 downstream safety valve 1 .5 in particular the valve provided connection for direct or indirect connection via further intermediate units with a pressure medium source.
- the single feed valve 1 .4 is open, so that the control fluid from the respective Vorschaltventilen 1 .4 is performed to the Mehrfachwegventilen 1 .5.
- After switching on the power supply (not shown in the drawings) tighten the safety multi-way valves 1 .5 and take the position I shown in FIG. 1.
- the illustrated multi-way valves 1 .5 are closed, ie there is no flow-conducting connection between the connection for direct or indirect coupling to the pressure medium source and the connection for direct or indirect coupling to the pressure sink.
- the fluid-moderate connections of port P (in the region of the pump Pu as a pressure medium source) and port T (in the region of the tank Ta as a pressure medium sink) are thus closed.
- the control liquid flowing in via an adjustable orifice 1 .9 and a check valve 1 .7 in the region of the connection P with the pump Pu flows via a connection A into the actuator 3, moves the piston rod there and actuates the quick-closing valve 2 connected thereto.
- connection between the connection P and the connection T is made.
- the control fluid can flow into the tank Ta.
- the control fluid of the actuator 3 then flows via a discharge valve 1 .6 to the tank Ta.
- the quick-closing time is dependent on the spring force of the actuator 3.
- the quick-closing can also optionally (shown in dashed lines in FIG. 1: shown in the other as available) via an external outflow valve 1 .10 are additionally supported.
- an externally mounted discharge valve 1 .10 the quick-closing time can be reduced accordingly, depending on the nominal size of the valve.
- the connection X to the control device 1, in particular the module M the fluidic coupling takes place.
- a test control valve assembly 1 .3 is provided. This includes a first multiple-way valve 1 .1, here a 2/2-way valve and two further multiple way valves 1 .2, here 2/2-way valves MV4 and MV5.
- the module M and the test control valve assembly 1 .3 preferably form a structural unit. In particular, these two subunits can form a compact block and be attached to each other and / or a carrier. This facilitates the assembly of the complete control device 1 and reduces the required space.
- the module M and / or the test control valve assembly 1 .3 preferably have an end position monitoring to determine whether the valves are working properly, ie occupy the controlled end position (open or closed position)
- the safety-way valves 1 .5, in particular multi-way valves MV 1, MV 2 and MV 3 are preferably designed as 4/2-way solenoid valve.
- Valves of the module M preferably connect the actuator 3 to the tank Ta formed as a pressure sink or disconnect it from the pump Pu, which is designed as a pressure source, if they are not supplied with energy, ie. H. open in the de-energized state, the quick-closing valve 2.
- the test control valve assembly 1 .3 the quick-closing valve 2 with the pressure sink while disconnecting it from the pressure source when energized, d. H. Close in the energized state, the quick-closing valve 2.
- the multiple-way valve designed as a Vorschaltventil 1 .4 is preferably designed to implement different functions as a 6/2-way valve. This is located in the mode described in Figure 1 in the position I. In position I of the 6/2 - way valve, the inlet Z1 is connected to the outlet A2, the inlet Z3 to the outlet A4. Inlet Z5 and drain A6 are closed. Process A2 and sequence A4 are again in fluid communication with the corresponding safety-way valve 1 .5.
- FIG. 2 shows a situation in which the safety-way valve 1 .5 with the designation MV1 is defective. This remains, for example, in the open position II, while the other multi-way valves MV2 and MV3 are in the valve position I.
- the corresponding with this corresponding feed valve 1 .4 in particular multi-way valve to be actuated and transferred from its position shown in FIG. 1 I in the at least one further position II.
- the inlet Z1 and Z5 is connected to the outlet A6.
- the additional inlet Z3 and the other processes A2 and A4 are closed.
- the sequence A6 is in fluid communication with the further safety-way valves 1 .5 with the designation MV2 and MV3.
- Both safety valves 1 .5 with the designation MV2 and MV3 are in the closed position I.
- the connection between the connection P and the connection T is made.
- the control fluid can flow into the tank Ta.
- the control fluid of the actuator 3 flows via a discharge valve 1 .6 to the tank Ta.
- the external outflow valve 1 .10 supports with regard to the shortening of the quick-closing time.
- a reliable overspeed protection is indispensable for turbomachinery. For gas and steam turbines this means a reliable detection of the overspeed and in response to an immediate closing of the quick-closing valve.
- This hydraulic control device offers both functions in one device.
- An electronic evaluation unit detects the overspeed and an electro-hydraulic module takes over the immediate control of the quick-closing valve. 2
- the switchability of the individual valve devices is realized via corresponding control devices.
- the switchability of the safety valves which is characterized by the realization of the at least two valve positions, can be realized in various ways. Preferably find electromagnetic actuators application.
- the adjusting devices of the Vorschaltventile 1 .4 can be operated mechanically, electrically, hydraulically or otherwise. Preferably, these are manually operated mechanically against spring force in case of replacement.
- module M In all figures, the following connections are shown on module M:
- connection P to pump Pu connection T to tank Ta
- connection MMV1 to MV1 connection MMV2 to MV2
- connection MMV3 to MV3
- connection MMV4 to MV4
- connection MMV5 to MV5
- connection X to outflow valve 1 .10
- connection A to actuator 3 reproduced in the bypass to the discharge valve 1 .10.
- a throttle 1 .8 and 1 .9 in the connection to the pump Pu and AbströmventiM .10 or to the actuator.
- safety valve 1 .5 safety valve, in particular safety valve
- MMV3 connections to the multiway valves MV1, MV2 MMV4, MMV5 Connections to the 2/2-way valves MV4, MV5
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Control Of Turbines (AREA)
- Fluid-Pressure Circuits (AREA)
- Safety Valves (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102014210421 | 2014-06-03 | ||
| PCT/EP2015/062348 WO2015185607A1 (de) | 2014-06-03 | 2015-06-03 | Hydraulische steuereinrichtung für ein schnellschluss-ventil einer dampfturbine und dampfturbinenanordnung |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP3152447A1 true EP3152447A1 (de) | 2017-04-12 |
| EP3152447B1 EP3152447B1 (de) | 2020-05-27 |
Family
ID=53442732
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP15730418.9A Active EP3152447B1 (de) | 2014-06-03 | 2015-06-03 | Hydraulische steuereinrichtung für ein schnellschluss-ventil einer dampfturbine und dampfturbinenanordnung |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US10480346B2 (de) |
| EP (1) | EP3152447B1 (de) |
| CN (1) | CN106414907B (de) |
| DE (1) | DE102015210254A1 (de) |
| WO (1) | WO2015185607A1 (de) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9896962B2 (en) * | 2014-02-28 | 2018-02-20 | General Electric Company | Trip manifold assembly for turbine systems |
| US10900504B2 (en) * | 2015-12-31 | 2021-01-26 | Westinghouse Electric Company Llc | Hydraulic apparatus and hydraulic appliance usable therein |
| CN105715590B (zh) * | 2016-03-18 | 2017-11-24 | 广西柳工机械股份有限公司 | 装载机变速液压系统 |
| WO2020198599A1 (en) * | 2019-03-27 | 2020-10-01 | Salvatore Shifrin | Self contained hydraulic lock apparatus |
| JP7297617B2 (ja) * | 2019-09-13 | 2023-06-26 | 日本ムーグ株式会社 | 電動油圧アクチュエータシステム、電動油圧アクチュエータシステムの油圧回路、及びそれを含む蒸気タービンシステム |
| DE102019218694B4 (de) * | 2019-12-02 | 2023-01-05 | Turventil Gmbh & Co. Kg | Kombinationsventil aus Schnellschluss- und Regelventil für einen Dampfkreislauf |
| KR102212434B1 (ko) * | 2020-11-13 | 2021-02-04 | (주)한빛산업 | 방향제어 유압밸브 및 이를 포함하는 시스템 |
| JP7012394B1 (ja) | 2021-01-14 | 2022-01-28 | サーボ機電設備株式会社 | タービンの危急停止制御装置 |
| JP7113544B2 (ja) * | 2021-01-14 | 2022-08-05 | サーボ機電設備株式会社 | タービンの危急停止制御装置 |
| WO2023095103A1 (en) * | 2021-11-29 | 2023-06-01 | Rotex Automation Limited | Triple redundancy assembly in process control systems |
| US11867072B2 (en) | 2021-12-06 | 2024-01-09 | Woodward, Inc. | On-line verifiable trip and throttle valve actuator |
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| CH666132A5 (de) * | 1984-07-20 | 1988-06-30 | Bbc Brown Boveri & Cie | Einrichtung zur ueberwachung von physikalischen groessen an anlagen. |
| ATE104014T1 (de) * | 1989-12-21 | 1994-04-15 | Asea Brown Boveri | Antrieb fuer ein speiseventil. |
| DE4330038A1 (de) * | 1993-09-06 | 1995-03-09 | Abb Management Ag | Hydraulische Sicherheitsschaltung |
| US5626070A (en) * | 1996-02-29 | 1997-05-06 | Caterpillar Inc. | Control logic for a multiple use hydraulic system |
| EP1055077B1 (de) * | 1998-01-20 | 2007-06-06 | Invensys Systems, Inc. | Elektromagnet- vorrichtung mit zwei von drei elektromagneten die immer betätigt sind |
| US6478048B2 (en) * | 1999-01-19 | 2002-11-12 | Triconex, Incorporated | Two out of three voting solenoid arrangement |
| US6116258A (en) * | 1999-02-16 | 2000-09-12 | Compressor Controls Corporation | Method and apparatus for an electrohydraulic control system of a steam turbine |
| US7499761B2 (en) * | 2001-01-09 | 2009-03-03 | Sis-Tech Applications, L.P. | Variable function voting solenoid-operated valve apparatus having air-to-move valve actuators and testing method therefor |
| DE102004042891B3 (de) | 2004-08-31 | 2005-10-06 | Hydac System Gmbh | Sicherheitsschaltung für medienbetriebene Verbraucher und Verfahren zum Betrieb derselben |
| US7409965B2 (en) * | 2006-10-16 | 2008-08-12 | Elliott Company | Direct acting hydraulic trip block |
| US8151813B2 (en) * | 2007-06-22 | 2012-04-10 | Invensys Systems, Inc. | Quad-redundant hydraulic trip system |
| US20120011460A1 (en) * | 2010-07-12 | 2012-01-12 | Action Star Enterprise Co., Ltd. | System capable of simulating variety of output/input devices |
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| WO2012062404A1 (de) | 2010-11-08 | 2012-05-18 | Robert Bosch Gmbh | Hydraulischer oder pneumatischer antrieb zur betätigung einer armatur mit einem regel- oder schaltventil |
| DE102011082599B4 (de) | 2011-09-13 | 2013-08-14 | Keicher Hydraulik GmbH | Ventilanordnung, Verwendung, Turbine und Kraftwerk |
| CN202280483U (zh) | 2011-09-30 | 2012-06-20 | 杭州吉通机电有限公司 | 速关保安控制装置 |
| DE202011109158U1 (de) * | 2011-12-15 | 2012-01-24 | Karl Morgenbesser | Elektrohydraulische Sicherheitssteuerung |
| CN103195503A (zh) | 2013-04-16 | 2013-07-10 | 北京首钢国际工程技术有限公司 | 适用低温多效海水淡化系统用汽轮机的调节系统 |
| US9896962B2 (en) * | 2014-02-28 | 2018-02-20 | General Electric Company | Trip manifold assembly for turbine systems |
| US10119478B2 (en) * | 2015-06-25 | 2018-11-06 | Woodward, Inc. | High reliability high flow redundant trip block |
-
2015
- 2015-06-03 CN CN201580029817.4A patent/CN106414907B/zh active Active
- 2015-06-03 DE DE102015210254.8A patent/DE102015210254A1/de not_active Withdrawn
- 2015-06-03 WO PCT/EP2015/062348 patent/WO2015185607A1/de not_active Ceased
- 2015-06-03 US US15/316,261 patent/US10480346B2/en active Active
- 2015-06-03 EP EP15730418.9A patent/EP3152447B1/de active Active
Also Published As
| Publication number | Publication date |
|---|---|
| US20170152759A1 (en) | 2017-06-01 |
| US10480346B2 (en) | 2019-11-19 |
| DE102015210254A1 (de) | 2015-12-03 |
| WO2015185607A1 (de) | 2015-12-10 |
| CN106414907B (zh) | 2019-03-26 |
| CN106414907A (zh) | 2017-02-15 |
| EP3152447B1 (de) | 2020-05-27 |
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