CN207297224U - Hydraulic generator failure and without electric emergency stop device - Google Patents
Hydraulic generator failure and without electric emergency stop device Download PDFInfo
- Publication number
- CN207297224U CN207297224U CN201720843284.XU CN201720843284U CN207297224U CN 207297224 U CN207297224 U CN 207297224U CN 201720843284 U CN201720843284 U CN 201720843284U CN 207297224 U CN207297224 U CN 207297224U
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- China
- Prior art keywords
- lever
- emergency stop
- stop valve
- valve
- pressure oil
- 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.)
- Expired - Fee Related
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- 230000006835 compression Effects 0.000 claims abstract description 11
- 238000007906 compression Methods 0.000 claims abstract description 11
- 239000000463 material Substances 0.000 claims description 5
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 5
- 230000000694 effects Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 5
- 230000005611 electricity Effects 0.000 description 5
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 2
- 238000005119 centrifugation Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Landscapes
- Control Of Water Turbines (AREA)
Abstract
The utility model provides a kind of hydraulic generator failure and without electric emergency stop device; to the lever pulling device of leverage when including top base, lever, emergency stop valve and overcoming the valve rod compression reseting spring of emergency stop valve; emergency stop valve and lever pulling device are located at lever homonymy; the end of valve rod and lever contact, lever upper end rotate axis connection with top base.When hydrogenerator works normally, lever pulling device pulls lever, and the resetting spring of lever compression valve rod is so that the high pressure oil port opening of emergency stop valve.When power failure occurs; lever pulling device trip lever; valve rod resets the high-pressure oil passage port closing for making emergency stop valve under the action of resetting spring; pressure oil is introduced directly into the control guide vane of servomotor oil cylinder or one end of nozzle closing at the same time; pressure oil promotes piston to be moved to the direction of guide vane closing or nozzle; closed until by guide vanes of water turbine or nozzle, realize the emergency shutdown of the hydraulic turbine.
Description
Technical field
The utility model belongs to rotary speed of generator group control technology field, and in particular to a kind of hydraulic generator failure
And without electric emergency stop device.
Background technology
In the turbine-generator units largely used at present, the adjustment of rotational speed of unit is by micro-processor controlled hydraulic follow-up system
What system was realized.It is specifically designed in this Hydrawlic Slave System and has installed an electromagnetism emergency stop valve additional.In this hydraulic system
Electromagnetism emergency stop valve is an electromagnetism two-position four-way valve.The effect of the valve is when unit normal operation, this valve electromagnet does not work,
In power failure state.But when unit occurs certain failure and needs emergency shutdown, then a signal is triggered by the source of trouble, make emergency stop
Solenoid valve electromagnet obtain it is electric be attracted promote displacement of valve rod arrive another state, in this case emergency stop solenoid valve blocked first lead change
To the oil circuit of solenoid valve, at the same by pressure oil be introduced directly into servomotor oil cylinder guide vane close one end, pressure oil promote piston
Move to the direction of guide vane closing, closed until by guide vanes of water turbine.The oil return of servomotor oil cylinder opposite side then passes through emergency stop valve
Emptying oil circuit backflow oil return box.
This mode of operation have one it is very big the drawbacks of, the action of emergency stop valve must be completed anxious in the case where there is external power
Stop acting, but emergency stop can not be realized if losing power supply, and turbine-generator units are needed most and stopped in emergency at this time, otherwise can
Generating unit speed superelevation (flying ease) is caused, hydraulic turbine bearing shell is burnt and brings other dangerous.
Utility model content
In order to solve also realize stopping in emergency for turbine-generator units in the event of a power failure, the utility model provides one
Plant hydraulic generator failure and without electric emergency stop device.
In order to solve the above-mentioned technical problem, its technical solution is：
A kind of hydraulic generator failure and without electric emergency stop device, including top base, lever, emergency stop valve and overcome
The lever pulling device of leverage, emergency stop valve and lever pulling device are located at during the valve rod compression reseting spring of emergency stop valve
Lever homonymy, the end of valve rod and the contact of lever, lever upper end rotate axis connection, lever pulling device drawing thick stick with top base
The resetting spring of lever compression valve rod is so that between the P mouths of the high pressure oil port opening of emergency stop valve, i.e. emergency stop valve and A mouthfuls during bar
Oil circuit turns on, and valve rod resets under the action of resetting spring during lever pulling device trip lever the high-pressure oil passage of emergency stop valve
Mouth is closed, i.e. oil circuit is truncated between P mouthfuls and A mouthfuls, while pressure oil is introduced directly into control guide vane or the spray of servomotor oil cylinder
One end that nozzle is closed, pressure oil promote piston to be moved to the direction of guide vane closing or nozzle, until by guide vanes of water turbine or nozzle
Close, realize the emergency shutdown of the hydraulic turbine.
Wherein, the lever pulling device is normally closed electromagnet, and lever material is ferrous material.When being powered by electromagnet
The electromagnetic force of generation is attracted connection.
Wherein, the lever pulling device can also use watt centrifugal speed governor.
Further, the watt centrifugal speed governor includes motor, centrifugal globe, swing rod, connecting rod, pull rod and is arranged on motor turn
Compression reseting spring between axis and pull rod, centrifugal globe are connected with machine shaft by swing rod and are rotated with motor, the connecting rod
The swing rod that one end is connected with centrifugal globe or with centrifugal globe rotates axis connection, and the other end is connected with pull rod by a bi-directional push-pull bearing
Connect, the pull rod other end is connected to lever.When motor drives connecting rod and centrifugal globe rotates, pull rod is not rotated and can only turned with motor
Speed, which increases when centrifugal globe drives connecting rod to compress compression reseting spring, to be moved horizontally.
Further, lever is equipped with below the lever in manual reversion to the high pressure oil port opening state for making emergency stop valve
The locking bar for locking lever after (i.e. oil circuit turns between P mouthfuls and A mouthfuls).Locking bar is rotatablely connected with the shaft on bottom base, lever
Lower end and locking bar locked by latching, the shaft is equipped with and is fixed on around axis torsion spring, spring one end on bottom base, separately
One end is fixed on locking bar.
Further, the lock includes the groove that is arranged on locking bar and is arranged on lever end that the groove can be fastened on
Interior convex block.
Further, the position limiting pile for limiting its position is equipped with below the locking bar.
Further, the utility model further includes alarming device, and trigger attention device sends police when the locking bar pins lever
Show signal, such as light, the sound or other warning ways.The effect of this alarm signal is to enter to work normally in turbine-generator units
When have to release manual locking lever, in case during next failure emergency stop the mechanism normal operation.
When hydraulic turbine generator works, normally closed electromagnet or watt centrifugal speed governor is attracted lever or retracts lever, passes through
Emergency stop valve valve rod is pushed into by lever, and is in neutral position state, and generator works normally at this time.The normally closed electricity when power failure occurs
Magnet or watt centrifugal speed governor trip lever, the release of emergency stop valve valve rod spring, emergency stop valve is in running order and makes the hydraulic turbine
Guide vane servomotor makes guide vane close rapidly using the pressure oil in bellows accumulator, that is, realizes black closing.The effect of lever is to subtract
The traction load of small electromagnet.
So when starting water turbine set (black starting-up) in the case of no electricity, manual locking bar has the effect that：
1st, emergency stop lever manual is resetted, because there is no electric power at this time, so electromagnet or watt centrifugal speed governor can not
It is attracted drawing lever.
2nd, lift on manual locking bar is pinned lever through designed special buckle.
3rd, emergency stop valve has been completed with manpower at this time to reset, it can be achieved that manually (black to open without the hydraulic turbine is started under the conditions of electricity
It is dynamic).
4th, electric power has successfully been recovered when starting, has there is an alarming device, such as alarming singal lights on operating surface at this time, prompted manual
Locking bar not yet resets.
5th, manual locking bar under Manual press, in manpower and under axis spring collective effect, disengagement lever lock makes emergency stop to the bar
Lever is on stand-by operation position (powered electromagnet or the watt centrifugal speed governor of operation are attracted drawing lever), in case lower priority
Stop or " black " shutdown enters working status.
6th, another effect around axis spring is under no manual operation, and manual locking bar will not occur automatically into locking work
Condition is so as to ensure safety.
7th, the effect of alarming singal lights is that the prompting of " flashing " signal is sent when equipment is in the working condition of lock artificially
Operating personnel at once will exit locking bar after starter motor forms work(, " flashing " blackout after exiting.
Brief description of the drawings
Fig. 1 is the structure diagram of the first embodiment device of the utility model when hydraulic turbine generator works.
Fig. 2 is the structure diagram of the first embodiment device of the utility model when power failure occurs.
Fig. 3 is the structure diagram of the second embodiment device of the utility model when hydraulic turbine generator works.
Structure diagram when Fig. 4 is the locking bar pinning lever involved in the utility model.
Embodiment
The utility model is described in further detail with reference to the accompanying drawings and detailed description.
A kind of hydraulic generator failure of embodiment and without electric emergency stop device as shown in Figure 1 to Figure 3, including it is upper
Pedestal 10, lever 12, emergency stop valve 13 and overcome the lever pulling device of the valve rod 130 of emergency stop valve 13 to the active force of lever 12,
Emergency stop valve 13 and lever pulling device are located at 12 homonymy of lever, and the end of valve rod 130 is contacted with lever 12,12 upper end of lever with
Top base 10 rotates axis connection.
In Fig. 1, Fig. 3,12 compression valve rod 130 of lever is so that the height of emergency stop valve 13 when lever pulling device pulls lever 12
Oil circuit turns between the P mouths of pressure oil port opening, i.e. emergency stop valve and A mouthfuls.In Fig. 2, valve during lever pulling device trip lever 12
Bar 130 is resetted in the effect of resetting spring 131 makes emergency stop valve in running order, high pressure oil port closing, i.e. P mouthful and A mouths
Between oil circuit be truncated, while by pressure oil be introduced directly into servomotor oil cylinder control guide vane or nozzle close one end, pressure oil
Promote piston to be moved to the direction of guide vane closing or nozzle, closed until by guide vanes of water turbine or nozzle, realize the tight of the hydraulic turbine
Emergency stop machine.The oil return of servomotor oil cylinder opposite side is then backflowed oil return box by the emptying oil circuit of emergency stop valve.
Embodiment as shown in Figure 1 and Figure 2, lever pulling device are normally closed electromagnet 14, lever 12 and normally closed electromagnet 14
It is to be pulled together by the electromagnetism the suction-combining force that electromagnet produces, therefore lever 12 is ferrous material.The hydraulic turbine as shown in Figure 1
During generator operation, normally closed electromagnet 14 obtains electric actuation lever 12, so that the valve rod 130 of emergency stop valve 13 is pushed into by lever 12,
Make 13 high pressure oil port opening of emergency stop valve, in normal operating conditions.As shown in Fig. 2, the control system when power failure occurs
Cut off the power supply of normally closed electromagnet 14 and make normally closed 14 dead electricity trip lever 12 of electromagnet, the resetting spring 131 of emergency stop valve 13 makes
Valve rod 130 resets, and emergency stop valve 13 is in oil circuit cut-off state and makes guide vane servomotor using the pressure in bellows accumulator
Power oil makes guide vane close rapidly, if the hydraulic turbine is also to close nozzle by the current driving of nozzle certainly, realizes the hydraulic turbine
Emergency shutdown.
Embodiment as shown in Figure 3, lever pulling device are watt centrifugal speed governor 18.Watt centrifugal speed governor device 18
Including motor 180, centrifugal globe 181, swing rod 182, connecting rod 183, pull rod 184 and it is arranged between machine shaft and pull rod 184
Compression reseting spring 185, centrifugal globe 181 are connected with 180 shaft of motor by swing rod 182 and are rotated with motor 180, the company
The swing rod 182 that 183 one end of bar is connected with centrifugal globe 181 or with centrifugal globe 181 rotates axis connection, and other end pull rod 184 passes through one
A bi-directional push-pull bearing 186 connects, and 184 other end of pull rod is connected to lever 12.
When hydraulic turbine generator as shown in Figure 3 works, motor 180 drives 181 turns of centrifugal globe on two swing rods 182
Dynamic, centrifugal globe 181 produces centrifugal force so as to drive pull rod 184 to be recycled to motor drive direction, i.e., pull rod 184 compresses spring 185, from
And lever 12 is pushed into the valve rod 130 of emergency stop valve 13, make 13 high pressure oil port opening of emergency stop valve, in normal operating conditions.
180 power supply of system shutdown motor is controlled when power failure occurs, motor 180 stalls, and lever 12 is pushed outwardly by spring 185,
Lever be pushed out after state diagram as Fig. 2, the release of 13 valve rod spring of emergency stop valve, emergency stop valve is in oil circuit cut-off state and makes
Guide vane servomotor makes guide vane close rapidly using the pressure oil in bellows accumulator, if the hydraulic turbine is by nozzle certainly
Current driving the emergency shutdown for also closing nozzle, realizing the hydraulic turbine.
Due to carrying out there is no electric power during black starting-up emergency stop lever manual is resetted, electromagnet or watt centrifugation adjust
Fast device can not be attracted drawing lever.Therefore it is equipped with the locking bar 15 of 12 lock artificially of lever below lever 12, locking bar 15 is with
Shaft 110 on pedestal 11 is rotatablely connected, and the lower section of locking bar 15, which is equipped with, limits the position limiting pile 17 that its lower sticking position is put, the lower end of lever 12
Connected with locking bar 15 by latching.Latching the groove 150 for including being arranged on locking bar 15 and being arranged on 12 end of lever to engage
Convex block 151 in the groove 150.Lift on locking bar 15 is pinned lever 12 through designed special buckle, referring to Fig. 4.
Emergency stop valve 13 is completed with manpower at this time to reset, it can be achieved that being again started up the hydraulic turbine.
Automatically into locking operating mode security incident occurs for locking bar in order to prevent.Shaft 110 is equipped with around axis spring 16, bullet
16 one end of spring is fixed on bottom base 11, and the other end is fixed on locking bar 15.Locking bar 15 has successfully recovered electricity after pinning lever 12
Meeting trigger attention device sends alarm signal during power, prompts manual locking bar not yet to reset.
In addition, when the hydraulic turbine occur accident fly ease when excitation system by frequency detecting to overspeed frequency when, it may occur that solve
Encourage the instruction such as governor removal of load.Governor power supply also can be cut off at the same time, and make this set mechanism action of emergency stop valve, rapidly by guide vane
Close.
Claims (8)
- A kind of 1. hydraulic generator failure and without electric emergency stop device, it is characterised in that：Including top base (10), lever (12), emergency stop valve (13) and when overcoming valve rod (130) compression reseting spring (131) of emergency stop valve (13) to lever (12) active force Lever pulling device, emergency stop valve (13) and lever pulling device are located at lever (12) homonymy, the end of valve rod (130) and lever (12) contact, lever (12) upper end rotates axis connection, lever when lever pulling device pulls lever (12) with top base (10) (12) resetting spring (131) of compression valve rod (130) is so that the high pressure oil port opening of emergency stop valve (13), lever pulling device Valve rod (130) resets under the action of resetting spring (131) during trip lever (12) exports the high-pressure oil passage of emergency stop valve (13) Close, while pressure oil is introduced directly into the control guide vane of servomotor oil cylinder or one end of nozzle closing.
- 2. hydraulic generator failure according to claim 1 and without electric emergency stop device, it is characterised in that：It is described Lever pulling device is normally closed electromagnet (14), and lever (12) lever material is ferrous material.
- 3. hydraulic generator failure according to claim 1 and without electric emergency stop device, it is characterised in that：It is described Lever pulling device is watt centrifugal speed governor (18).
- 4. hydraulic generator failure according to claim 3 and without electric emergency stop device, it is characterised in that：It is described Watt centrifugal speed governor (18) includes motor (180), centrifugal globe (181), swing rod (182), connecting rod (183), pull rod (184) and sets Put the compression reseting spring (185) between machine shaft and the pull rod (184), centrifugal globe (181) by swing rod (182) with Motor (180) shaft is connected and rotated with motor (180), described connecting rod (183) one end and centrifugal globe (181) or and centrifugal globe (181) swing rod (182) of connection rotates axis connection, and the other end is connected with pull rod (184) by a bi-directional push-pull bearing (186) Connect, pull rod (184) other end is connected to lever (12).
- 5. hydraulic generator failure according to claim 1-4 any claim and without electric emergency stop device, It is characterized in that：Lever (12) is equipped with below the lever (12) in manual reversion to opening the high pressure oil export of emergency stop valve (13) Open the locking bar (15) for lever (12) being locked after state, locking bar (15) is rotatablely connected with the shaft (110) on bottom base (11), thick stick The lower end of bar (12) is locked with locking bar (15) by latching, and the shaft (110) is equipped with around axis torsion spring (16), spring (16) one end is fixed on bottom base (11), and the other end is fixed on locking bar (15).
- 6. hydraulic generator failure according to claim 5 and without electric emergency stop device, it is characterised in that：It is described The groove (150) can be fastened on by latching the groove (150) for including being arranged on locking bar (15) and being arranged on lever (12) end Interior convex block (151).
- 7. hydraulic generator failure according to claim 5 and without electric emergency stop device, it is characterised in that：It is described The position limiting pile (17) for limiting its position is equipped with below locking bar (15).
- 8. hydraulic generator failure according to claim 5 and without electric emergency stop device, it is characterised in that：Also wrap Alarming device is included, trigger attention device sends alarm signal when the locking bar (15) pins lever (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720843284.XU CN207297224U (en) | 2017-07-12 | 2017-07-12 | Hydraulic generator failure and without electric emergency stop device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720843284.XU CN207297224U (en) | 2017-07-12 | 2017-07-12 | Hydraulic generator failure and without electric emergency stop device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207297224U true CN207297224U (en) | 2018-05-01 |
Family
ID=62450649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720843284.XU Expired - Fee Related CN207297224U (en) | 2017-07-12 | 2017-07-12 | Hydraulic generator failure and without electric emergency stop device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207297224U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114687914A (en) * | 2022-03-30 | 2022-07-01 | 赣州黄金沃特发电设备有限公司 | Black shut-off for low-pressure hydroelectric generating set |
-
2017
- 2017-07-12 CN CN201720843284.XU patent/CN207297224U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114687914A (en) * | 2022-03-30 | 2022-07-01 | 赣州黄金沃特发电设备有限公司 | Black shut-off for low-pressure hydroelectric generating set |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180501 |