CN110486105A - A kind of intermediate extraction regulating mechanism of small flow steam turbine - Google Patents
A kind of intermediate extraction regulating mechanism of small flow steam turbine Download PDFInfo
- Publication number
- CN110486105A CN110486105A CN201910816760.2A CN201910816760A CN110486105A CN 110486105 A CN110486105 A CN 110486105A CN 201910816760 A CN201910816760 A CN 201910816760A CN 110486105 A CN110486105 A CN 110486105A
- Authority
- CN
- China
- Prior art keywords
- valve
- steam
- regulations
- steam turbine
- small flow
- 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.)
- Pending
Links
- 230000007246 mechanism Effects 0.000 title claims abstract description 53
- 230000001105 regulatory effect Effects 0.000 title claims abstract description 41
- 238000000605 extraction Methods 0.000 title claims abstract description 35
- 230000033001 locomotion Effects 0.000 claims abstract description 12
- 238000010025 steaming Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 2
- 230000009471 action Effects 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
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
- F01D17/00—Regulating or controlling by varying flow
- F01D17/10—Final actuators
- F01D17/105—Final actuators by passing part of the fluid
-
- 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
-
- 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
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/28—Supporting or mounting arrangements, e.g. for turbine casing
-
- 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
- F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
- F01D5/02—Blade-carrying members, e.g. rotors
- F01D5/06—Rotors for more than one axial stage, e.g. of drum or multiple disc type; Details thereof, e.g. shafts, shaft connections
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K7/00—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating
- F01K7/34—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines being of extraction or non-condensing type; Use of steam for feed-water heating
- F01K7/38—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines being of extraction or non-condensing type; Use of steam for feed-water heating the engines being of turbine type
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Lift Valve (AREA)
- Control Of Turbines (AREA)
Abstract
The present invention relates to steam turbine technology field, in particular to a kind of intermediate extraction regulating mechanism of small flow steam turbine, comprising: oil motor, intermediate connecting rod mechanism, intermediate regulations valve, intermediate steam room and intermediate noxzzle group.Oil motor is connect by intermediate connecting rod mechanism with intermediate regulations valve, and oil motor drives intermediate connecting rod mechanism action, the motion parts of intermediate connecting rod mechanism lifts intermediate regulations valve；Intermediate noxzzle group is mounted on the exit of intermediate steam room；The fixed part of intermediate regulations valve is fixed on the side wall of intermediate steam room, and preceding cylinder is connected to by intermediate regulations valve with the intermediate steam room, and each intermediate steam room be correspondingly arranged there are two intermediate regulations valve.A kind of intermediate extraction regulating mechanism of small flow steam turbine provided by the invention, has simplified the mechanical structure of regulating valve, at the same improve vaporium into vapour efficiency；The accurate adjusting, it can be achieved that the throttle flow to intermediate vaporium is opened and closed by intermediate regulations valve group.
Description
Technical field
The present invention relates to steam turbine technology field, in particular to a kind of intermediate extraction regulating mechanism of small flow steam turbine.
Background technique
12-18MW high temperature and pressure back pressure type and condensing turbine are since its throttle flow is small, and volume flow is small, using routine
The blade height of pitch diameter steam turbine is low, and multiple pressure stages have partial admission, there are displacement loss, and governing stage part
Admission degree is small, and overall efficiency is lower, thus to improve efficiency, energy-saving and emission-reduction, the unit of this type parameter mostly uses greatly more at present
Efficient small pitch diameter steam turbine.By reducing the pitch diameter of unit entirety, blade heights at different levels are increased, reducing has portion
Divide admission degree pressure number of stages.And after pitch diameter reduces, the enthalpy drops at different levels undertaken are reduced, and increase accordingly the series of steam turbine,
Also steam turbine overall efficiency is improved.When this kind of small flow steam turbine needs intermediate adjustment steam extraction, used matched
Intermediate extraction regulating valve structure.
The extraction regulation valve arrangement of conventional design is suitable for conventional pitch diameter steam turbine, its regulating valve quantity is more,
It is larger by flow, it is not suitable for small flow steam turbine.And structure is too big, can not be directly installed in small flow steam turbine.
After directly reducing, internal structure is complicated, and safety economy cannot be guaranteed, and the requirement to production, installation and operation is also significantly
It improves.Therefore, it is necessary to a kind of novel regulating valve structure be designed, to meet the adjustment steam extraction requirement of small flow steam turbine.
Summary of the invention
The present invention is directed to the technology existing in the prior art for being difficult to effectively adjust the steam extraction of small flow steam turbine
Problem provides a kind of intermediate extraction regulating mechanism.
The technical scheme to solve the above technical problems is that
A kind of intermediate extraction regulating mechanism of small flow steam turbine, comprising: oil motor, intermediate connecting rod mechanism, intermediate regulations
Valve, intermediate steam room and intermediate noxzzle group；
The oil motor is connect by the intermediate connecting rod mechanism with the intermediate regulations valve, described in the oil motor driving
Intermediate connecting rod mechanism action, the motion parts of intermediate regulations valve described in the intermediate connecting rod mechanism lifts；The intermediate noxzzle group
It is mounted on the exit of the intermediate steam room；The fixed part of the intermediate regulations valve is fixed on the side of the intermediate steam room
Wall, preceding cylinder are connected to by the intermediate regulations valve with the intermediate steam room, and each described intermediate steam room correspondence is set
Intermediate regulations valve there are two setting；By the opening and closing of the intermediate regulations valve group, the adjusting to the throttle flow of intermediate vaporium is realized.
Further, further includes: mention plate；The intermediate connecting rod mechanism passes through the fortune for mentioning plate Yu the intermediate regulations valve
Dynamic part connects.
Further, the intermediate regulations valve includes: stop nut, valve rod, valve disc and valve seat；
Described mention offers perforative mounting hole up and down on plate；The stop nut is fixed on the upper end of the valve rod, institute
The lower end for stating valve rod passes through the mounting hole and is fixedly connected with the valve disc；The valve seat is fixed on the intermediate steam room,
The one end in the steam flow channel being provided in the valve seat, the steam flow channel is communicated with preceding cylinder, the steam flow channel it is another
End is communicated with the intermediate steam room；The valve disc is matched with the valve seat, realizes the on-off in the steam flow channel.
Further, further includes: spheric seating；
The lower end of the stop nut is set as spherical structure；The upper end of the spheric seating is provided with and the stop nut
The spherical groove that lower end matches；The bottom of the spherical groove is connected to the mounting hole.
Further, the intermediate steam room sets at least to one.
Further, the specification for the intermediate regulations valve being arranged in the same intermediate steam room is identical.
Further, the shaft length for the intermediate regulations valve being arranged in the different vaporiums is different.
A kind of intermediate extraction regulating mechanism of small flow steam turbine provided by the invention at least have following beneficial effect or
Advantage:
A kind of intermediate extraction regulating mechanism of small flow steam turbine provided by the invention, oil motor pass through intermediate connecting rod mechanism
It is connect with intermediate regulations valve, oil motor drives intermediate connecting rod mechanism action, the movement of intermediate connecting rod mechanism lifts intermediate regulations valve
Part；Intermediate noxzzle group is mounted on the exit of intermediate steam room；The fixed part of intermediate regulations valve is fixed on intermediate steam room
Side wall, preceding cylinder is connected to by intermediate regulations valve with intermediate steam room, and there are two each intermediate steam room is correspondingly arranged
Intermediate regulations valve, has simplified the mechanical structure of regulating valve, at the same improve vaporium into vapour efficiency；Pass through intermediate regulations valve group
Opening and closing, it can be achieved that the throttle flow to intermediate vaporium accurate adjusting.
Detailed description of the invention
Fig. 1 is the intermediate extraction regulating mechanism structural schematic diagram of small flow steam turbine provided in an embodiment of the present invention；
Fig. 2 is the intermediate extraction regulating mechanism structural schematic diagram of another small flow steam turbine provided in an embodiment of the present invention.
In attached drawing, parts list represented by the reference numerals are as follows:
1- oil motor, 2- intermediate connecting rod mechanism, 3- mention plate, 41- valve rod, 42- valve disc, 43- valve seat, 5- cylinder, among 6-
Vaporium, 7- intermediate noxzzle group.
Specific embodiment
The present invention is directed to the technology existing in the prior art for being difficult to effectively adjust the steam extraction of small flow steam turbine
Problem provides a kind of intermediate extraction regulating mechanism.
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Whole description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
The embodiment of the present invention, every other reality obtained by those of ordinary skill in the art without making creative efforts
Example is applied, shall fall within the protection scope of the present invention.
Referring to Fig. 1 and Fig. 2, the embodiment of the invention provides a kind of intermediate extraction regulating mechanism of small flow steam turbine,
Specifically include that oil motor 1, intermediate connecting rod mechanism 2, intermediate regulations valve [being not shown in the figure], intermediate steam room 6 and intermediate noxzzle group
7.Wherein, cylinder lower right is mounted on for manipulating the oil motor 1 of the movement of intermediate connecting rod mechanism 2；Oil motor 1 is connected by centre
Linkage 2 is connect with intermediate regulations valve, and oil motor 1 is for driving intermediate connecting rod mechanism 2 to act, and intermediate connecting rod mechanism 2 is for mentioning
The motion parts for rising intermediate regulations valve, when the motion parts of intermediate regulating valve are contacted with fixed part, intermediate regulations valve is closed；
When the motion parts of intermediate regulating valve are separated with fixed part, intermediate regulations valve is opened.Intermediate noxzzle group 7 is mounted on intermediate steaming
The exit of steam chest 6, intermediate noxzzle group 7 are used to spray to the steam in intermediate steam room 6 corresponding chamber inside steam turbine and do
Function.The fixed part of intermediate regulations valve is fixed on the side wall of intermediate steam room 6, and cylinder 5 passes through intermediate regulations valve and intermediate steam
Room 6 is connected to；Each intermediate steam room 6 is correspondingly arranged there are two intermediate regulations valve, and two intermediate regulations valves share a centre
Vaporium 6 has simplified the mechanical structure of regulating valve, meanwhile, the corresponding two intermediate regulations valves in an intermediate steam room 6 shorten steaming
The stroke of vapour, improve vaporium into vapour efficiency.The intermediate extraction of small flow steam turbine provided in an embodiment of the present invention is adjusted
Mechanism realizes the adjusting to the throttle flow of intermediate vaporium 6 by the opening and closing of intermediate regulations valve group.
Preferably, referring to Fig. 1 and Fig. 2, the intermediate extraction regulating mechanism of small flow steam turbine provided in an embodiment of the present invention
Further include: mention plate 3.Intermediate connecting rod mechanism 2 is connect by mentioning plate 3 with the motion parts of intermediate regulations valve.In the present embodiment, plate is mentioned
3 be the bindiny mechanism of intermediate connecting rod mechanism 2 and intermediate regulations valve, and the concrete shape for mentioning plate 3 and specification with no restriction, specifically may be used
The demands such as the space layout of quantity and steam turbine according to intermediate connecting rod mechanism 2 and intermediate regulations valve are defined, for example, this
In embodiment, plate 3 is mentioned using the plate structure of rectangle, intermediate connecting rod mechanism 2 is fixedly connected with the both ends for mentioning plate 3；Multiple centres
The movable part of regulating valve, which is uniformly arranged on, to be mentioned on plate 3.
Preferably, referring to Fig. 1 and Fig. 2, the intermediate extraction regulating mechanism of small flow steam turbine provided in an embodiment of the present invention
In, intermediate regulations valve includes: that stop nut [being not shown in the figure], valve rod 41, valve disc 42, valve seat 43 and spheric seating [do not show in figure
Out].Wherein, stop nut, valve rod 41 and valve disc 42 constitute the motion parts of intermediate regulations valve, and valve seat 43 constitutes intermediate regulations valve
Fixed part.It mentions and offers perforative mounting hole up and down on plate 3, the diameter of mounting hole is greater than the maximum outside diameter of valve rod 41.Limit
Position nut is fixed on the upper end of valve rod 41, and the lower end of valve rod 41 passes through mounting hole and is fixedly connected with valve disc 42.Valve seat 43 is fixed on
On intermediate steam room 6, the one end in the steam flow channel being provided in valve seat 43, steam flow channel is communicated with cylinder 5, steam flow channel it is another
One end is communicated with intermediate steam room 6；Valve disc 42 is matched with valve seat 43, realizes the on-off in steam flow channel.In the embodiment of the present invention,
The lower end of stop nut is set as spherical structure；It is recessed that the upper end of spheric seating is provided with the spherical surface matched with stop nut lower end
Slot；The bottom of spherical groove is connected to mounting hole.
In the embodiment of the present invention, referring to Fig. 1 and Fig. 2, intermediate steam room 6 sets at least to one, same intermediate steam room 6
The specification of two intermediate regulations valves of interior setting is identical.41 length of valve rod for the intermediate regulations valve being arranged in different vaporiums is not
Together, different value is set by 41 length of valve rod of intermediate regulations valve, is mainly used for that the unlatching order of each group intermediate regulations valve is arranged,
Regulating valve, which opens order, to be determined by the position of 41 upper cap nut of valve rod, nut with mention small (i.e. valve rod 41 at a distance between plate 3
Length is small) first turn on.
Intermediate noxzzle group 7 is mounted in intermediate steam room 6, and nozzle complete cycle arrangement is divided into two groups.For single intermediate regulations
Valve, it is related by the flow of intermediate regulations valve and the area (i.e. lift) and front and back pressure difference of intermediate regulations valve: when aperture is smaller
When, flow and lift are substantially in line relationship；When aperture continues out big, although flow area is increasing, pressure difference
Very little；After valve wide open, flow tends to be saturated, and is not further added by.With the variation of unit steam extraction amount, intermediate regulations valve is opened
Number is variation, and the intermediate extraction regulating valve of small flow steam turbine opens or closes control flow area by regulating valve to control
The flow that system passes through valve.1 piston of oil motor mentions plate 3 by the drive of intermediate regulations connecting rod and moves up and down, and mentions plate 3 and moves up and down
When, drive regulating valve to open or close by nut, the unlatching situation of regulating valve determines the throttle flow of intermediate steam room 6.
In the embodiment of the present invention, referring to Fig. 1 and Fig. 2, there are two in intermediate steam room 6 and four for small flow steam turbine setting
Between regulating valve, be divided into two groups, every group is correspondingly arranged on an intermediate steam room 6 and two intermediate regulations valves, every group of intermediate regulations
Valve controls one group of nozzle.When unit not steam extraction, all intermediate regulations valves are all turned on, with the increase of steam extraction, successively in closing
Between regulating valve.In regulating valve successively closing process, only completely closed in previous group intermediate regulations valve or close to completely closing
When, next group of intermediate regulations valve is just closed.And when steam extraction amount reduces, each group intermediate regulations valve is successively opened.As unit is taken out
The variation of vapour amount, it is variation that intermediate regulations valve, which opens number, and cut-out governing mode is mainly the through-flow face by changing governing stage
Product is to control throttle flow.1 piston of oil motor is mentioned plate 3 and is moved up and down by the drive of intermediate regulations connecting rod, when mentioning plate 3 and moving up and down,
Intermediate regulations valve is driven to open or close by nut.When oil motor 1 is mentioned plate 3 and moved up by the driving of intermediate regulations connecting rod, successively
Open each intermediate regulations valve.It is moved down when mentioning plate 3, turns down valve by spool gravity and vapor action power.
Light sheet products stamping device provided in an embodiment of the present invention and process for stamping at least have following beneficial effect or excellent
Point:
A kind of intermediate extraction regulating mechanism of small flow steam turbine provided in an embodiment of the present invention, oil motor are connected by centre
Linkage is connect with intermediate regulations valve, and oil motor drives intermediate connecting rod mechanism action, intermediate connecting rod mechanism lifts intermediate regulations valve
Motion parts；Intermediate noxzzle group is mounted on the exit of intermediate steam room；The fixed part of intermediate regulations valve is fixed on centre
The side wall of vaporium, preceding cylinder is connected to by intermediate regulations valve with intermediate steam room, and each intermediate steam room is correspondingly arranged
There are two intermediate regulations valve, simplified the mechanical structure of regulating valve, at the same improve vaporium into vapour efficiency；Pass through middle tone
That saves valve group is opened and closed the accurate adjusting, it can be achieved that the throttle flow to intermediate vaporium.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (7)
1. a kind of intermediate extraction regulating mechanism of small flow steam turbine, comprising: oil motor, intermediate connecting rod mechanism；It is characterized in that,
Further include: intermediate regulations valve, intermediate steam room and intermediate noxzzle group；
The oil motor is connect by the intermediate connecting rod mechanism with the intermediate regulations valve, and the oil motor drives the centre
Link mechanism acts, the motion parts of intermediate regulations valve described in the intermediate connecting rod mechanism lifts；The intermediate noxzzle group installation
In the exit of the intermediate steam room；The fixed part of the intermediate regulations valve is fixed on the side wall of the intermediate steam room,
Preceding cylinder is connected to by the intermediate regulations valve with the intermediate steam room, and each described intermediate steam room is correspondingly arranged on
Two intermediate regulations valves；By the opening and closing of the intermediate regulations valve group, the adjusting to the throttle flow of intermediate vaporium is realized.
2. the intermediate extraction regulating mechanism of small flow steam turbine according to claim 1, which is characterized in that further include: it mentions
Plate；The intermediate connecting rod mechanism mentions plate described in and connect with the motion parts of the intermediate regulations valve.
3. the intermediate extraction regulating mechanism of small flow steam turbine according to claim 2, which is characterized in that the middle tone
Saving valve includes: stop nut, valve rod, valve disc and valve seat；
Described mention offers perforative mounting hole up and down on plate；The stop nut is fixed on the upper end of the valve rod, the valve
The lower end of bar passes through the mounting hole and is fixedly connected with the valve disc；The valve seat is fixed on the intermediate steam room, described
The one end in the steam flow channel being provided in valve seat, the steam flow channel is communicated with preceding cylinder, the other end in the steam flow channel with
The intermediate steam room communicates；The valve disc is matched with the valve seat, realizes the on-off in the steam flow channel.
4. the intermediate extraction regulating mechanism of small flow steam turbine according to claim 3, which is characterized in that further include: ball
Face seat；
The lower end of the stop nut is set as spherical structure；The upper end of the spheric seating is provided with and the stop nut lower end
The spherical groove matched；The bottom of the spherical groove is connected to the mounting hole.
5. the intermediate extraction regulating mechanism of small flow steam turbine according to claim 1-4, which is characterized in that institute
It states intermediate steam room and sets at least to one.
6. the intermediate extraction regulating mechanism of small flow steam turbine according to claim 5, which is characterized in that it is same it is described in
Between the specification of the intermediate regulations valve that is arranged in vaporium it is identical.
7. the intermediate extraction regulating mechanism of small flow steam turbine according to claim 6, which is characterized in that the different steamings
The shaft length for the intermediate regulations valve being arranged in steam chest is different.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910816760.2A CN110486105A (en) | 2019-08-30 | 2019-08-30 | A kind of intermediate extraction regulating mechanism of small flow steam turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910816760.2A CN110486105A (en) | 2019-08-30 | 2019-08-30 | A kind of intermediate extraction regulating mechanism of small flow steam turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110486105A true CN110486105A (en) | 2019-11-22 |
Family
ID=68555678
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910816760.2A Pending CN110486105A (en) | 2019-08-30 | 2019-08-30 | A kind of intermediate extraction regulating mechanism of small flow steam turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110486105A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112360579A (en) * | 2020-11-12 | 2021-02-12 | 中国长江动力集团有限公司 | Novel middle steam extraction adjusting steam valve and connecting rod structure |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002097903A (en) * | 2000-09-27 | 2002-04-05 | Mitsubishi Heavy Ind Ltd | Steam valve |
| CN201013408Y (en) * | 2006-09-29 | 2008-01-30 | 上海汽轮机有限公司 | Built-in type steam pumping regulating valve |
| CN102022142A (en) * | 2009-09-23 | 2011-04-20 | 上海电气电站设备有限公司 | Built-in steam extraction controlling and regulating valve set for steam turbine |
| CN102536347A (en) * | 2012-02-21 | 2012-07-04 | 杭州汽轮机股份有限公司 | Steam extraction lifting plate type adjusting valve of steam turbine |
| WO2015113661A1 (en) * | 2014-01-28 | 2015-08-06 | Siemens Aktiengesellschaft | Steam turbine comprising a throttle device |
| CN210599129U (en) * | 2019-08-30 | 2020-05-22 | 中国长江动力集团有限公司 | Middle steam extraction adjusting mechanism of small-flow steam turbine |
-
2019
- 2019-08-30 CN CN201910816760.2A patent/CN110486105A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002097903A (en) * | 2000-09-27 | 2002-04-05 | Mitsubishi Heavy Ind Ltd | Steam valve |
| CN201013408Y (en) * | 2006-09-29 | 2008-01-30 | 上海汽轮机有限公司 | Built-in type steam pumping regulating valve |
| CN102022142A (en) * | 2009-09-23 | 2011-04-20 | 上海电气电站设备有限公司 | Built-in steam extraction controlling and regulating valve set for steam turbine |
| CN102536347A (en) * | 2012-02-21 | 2012-07-04 | 杭州汽轮机股份有限公司 | Steam extraction lifting plate type adjusting valve of steam turbine |
| WO2015113661A1 (en) * | 2014-01-28 | 2015-08-06 | Siemens Aktiengesellschaft | Steam turbine comprising a throttle device |
| CN210599129U (en) * | 2019-08-30 | 2020-05-22 | 中国长江动力集团有限公司 | Middle steam extraction adjusting mechanism of small-flow steam turbine |
Non-Patent Citations (1)
| Title |
|---|
| 亓东民: "石化汽轮机阀杆及阀碟螺栓断裂故障分析及对策", 内燃机与配件, pages 161 - 163 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112360579A (en) * | 2020-11-12 | 2021-02-12 | 中国长江动力集团有限公司 | Novel middle steam extraction adjusting steam valve and connecting rod structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101004655B1 (en) | Variable valve lift device for the lift adjustment of gas-exchange valves of an internal combustion engine | |
| US20030168618A1 (en) | Passive valve assembly | |
| CN201581950U (en) | Modified engine brake device | |
| CN110486105A (en) | A kind of intermediate extraction regulating mechanism of small flow steam turbine | |
| CN110094244A (en) | The electro-hydraulic full variable gas distribution actuator of one kind and its control method | |
| CN108194693A (en) | Gas proportion valve module and gas heater | |
| CN201013408Y (en) | Built-in type steam pumping regulating valve | |
| CN210599129U (en) | Middle steam extraction adjusting mechanism of small-flow steam turbine | |
| EP0309468B1 (en) | Variable actuator for a valve | |
| CN106837640B (en) | The controllable common-rail injector of needle valve movement speed | |
| CN110454247A (en) | Small pitch diameter intermediate extraction formula steam turbine | |
| CN106593569B (en) | A kind of Mechanical course valve actuating gear and control method | |
| CN109653829A (en) | A kind of electro-hydraulic regulation method and device of valve angle of lag | |
| CN201513211U (en) | Novel engine braking device | |
| CN202718715U (en) | Servo mechanism of air adjusting valve of turbine | |
| CN102852585A (en) | Continuous and changeable valve lift control mechanism | |
| CN107842407B (en) | A kind of variable valve actuator for air that 2/4 stroke can be achieved and exchanges | |
| CN101100987A (en) | Air pump of pneumatic high pressure greasing pump | |
| CN2895804Y (en) | Horizontal admission controller | |
| CN102877959B (en) | A kind of engine air valve controlling mechanism and controlling method thereof | |
| CN1103408C (en) | Internal combustion engine with hydraulic drive | |
| CN102705031A (en) | Stepless variable lift system of engine | |
| CN208793232U (en) | The fuel supply flow rate self-regulation sliding valve structure of helical-lobe compressor | |
| CN209228562U (en) | A kind of air pump of Pneumatic high pressure greasing pump | |
| CN208793708U (en) | Solenoid valve and compression set, cooling cycle system and air regulator with it |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |