CN204283723U - To overrun prober and comprise the water turbine overspeed protection device of prober of overrunning - Google Patents
To overrun prober and comprise the water turbine overspeed protection device of prober of overrunning Download PDFInfo
- Publication number
- CN204283723U CN204283723U CN201420768004.XU CN201420768004U CN204283723U CN 204283723 U CN204283723 U CN 204283723U CN 201420768004 U CN201420768004 U CN 201420768004U CN 204283723 U CN204283723 U CN 204283723U
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- Prior art keywords
- shell fragment
- prober
- fragment seat
- housing
- overrun
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- 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
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- Hydraulic Turbines (AREA)
Abstract
The utility model discloses a kind of prober and comprise the water turbine overspeed protection device of prober of overrunning of overrunning, described prober of overrunning comprises housing, touching shell fragment and expansion device, described enclosure interior is provided with a cavity, expansion device is movably arranged in enclosure interior cavity, described expansion device comprises shell fragment seat and spring, the top of shell fragment seat is circumferentially provided with annular lug, described spring housing is contained on shell fragment seat, the upper end of spring is fixed on the lower end of annular lug, the lower end of spring and the bottom connection of housing hollow touch, the upper surface of shell fragment seat contacts with the top of cavity under the action of the spring, the middle part of described shell fragment seat upper surface is provided with groove, centrifugal-block is provided with in groove, with bolt, centrifugal-block is fixed in described groove, described touching shell fragment is arranged on the lower surface of shell fragment seat.The utility model changes the size of centrifugal force by the counterweight amount adjusting centrifugal-block, and its structure is simple, easy accessibility, and decreases dismounting cost.
Description
Technical field
The utility model relates to water turbine field, particularly a kind of prober and comprise the water turbine overspeed protection device of prober of overrunning of overrunning.
Background technique
The water turbine used at present prober of overrunning is all adopt spring, adjusts by the precompression of Regulation spring working value of overrunning, generally in manufacturing firm by experimental test, adjust the precompression of spring, no longer change after fixing.Overspeed protection device uses as proterctive equipment; action when only there is accident in power station; some power stations just do not have action after Installation and Debugging; test tachypragia protector be a kind of destructive test for water turbine, and water turbine price is high; generally can not do experiment; whether normally detect protector, fast prober can only be pulled down on Special test platform and go test to adjust, such words is time-consuming requires great effort again.
Summary of the invention
In order to solve the problems of the technologies described above, the utility model provides that a kind of structure is simple, the prober and comprise the water turbine overspeed protection device of prober of overrunning of overrunning of easy accessibility.
The technological scheme that the utility model solves the problem is: a kind of water turbine is overrun prober, comprise housing, touching shell fragment and expansion device, described enclosure interior is provided with a cavity, expansion device is movably arranged in enclosure interior cavity, described expansion device comprises shell fragment seat and spring, the top of shell fragment seat is circumferentially provided with annular lug, described spring housing is contained on shell fragment seat, the upper end of spring is fixed on the lower end of annular lug, the lower end of spring and the bottom connection of housing hollow touch, the upper surface of shell fragment seat contacts with the top of cavity under the action of the spring, the bottom of shell fragment seat is exposed outside housing through the bottom of cavity, the middle part of described shell fragment seat upper surface is provided with groove, centrifugal-block is provided with in groove, with bolt, centrifugal-block is fixed in described groove, described touching shell fragment is arranged on the lower surface of shell fragment seat.
Above-mentioned water turbine is overrun in prober, and the bottom of described shell fragment seat is along the circumferential direction provided with annular groove, the sidewall of described housing is arranged with two caging bolts, and the screw rod of caging bolt stretches in the annular groove of shell fragment seat bottom through housing sidewall.
Above-mentioned water turbine is overrun in prober, and when the upper surface of described shell fragment seat contacts with cavity top, the screw rod of described caging bolt just contacts with the lower end surface of described annular groove.
Above-mentioned water turbine is overrun in prober, and the middle part of described housing upper surface is just provided with the first circular hole to the groove of shell fragment seat.
Above-mentioned water turbine is overrun in prober, and the middle part of described housing lower surface is provided with the second circular hole, and the bottom of shell fragment seat is exposed outside housing through the second circular hole.
Above-mentioned water turbine is overrun in prober, described housing and shell fragment seat all cylindrical.
A kind of water turbine overspeed protection device; comprise prober of overrunning, main shaft anchor ear, equilibrate counterweight, electrical apparatus release, hydrovalve and electric signal switch; main shaft anchor ear holds main shaft tightly; on the main shaft anchor ear that prober and the equilibrate counterweight symmetry of overrunning is arranged on main shaft circumference place and with main axis; electrical apparatus release is arranged on main shaft side and leaves spacing with prober of overrunning; hydrovalve, electric signal switch connect electrical apparatus release, described in prober of overrunning be above-mentioned prober of overrunning.
The beneficial effects of the utility model are:
1, prober of overrunning of the present utility model is provided with centrifugal-block in expansion device, and can be changed the size of centrifugal force by the counterweight amount adjusting centrifugal-block, its structure is simple, centrifugal-block easy accessibility, improves dismounting efficiency while reducing dismounting cost;
2, prober of overrunning of the present utility model does not need entirety to pull down Special test platform, as long as change governor weight block, just can test under unit rated speed, whether check system is normal, the need of adjustment, decrease the time of test, also reduce the cost of test;
3, overspeed protection device of the present utility model can close when water turbine set rotating speed is too high water turbine stator mechanism or close water inlet butterfly valve realize compressor emergency shutdown, guarantee that power plant safety runs.
Accompanying drawing explanation
Fig. 1 is that the utility model is overrun the structural representation of prober.
Fig. 2 be the utility model overrun prober test time structural representation.
Fig. 3 is the structural representation of the utility model overspeed protection device.
Embodiment
As shown in Figure 1, prober of overrunning comprises housing 1, touching shell fragment 2 and expansion device, described housing 1 is cylindrical, its inside is provided with a cavity 3, expansion device is movably arranged in housing 1 internal cavities 3, described expansion device comprises shell fragment seat 4 and spring 5, shell fragment seat 4 is cylindrical, its top is circumferentially provided with annular lug 6, described spring 5 is sleeved on shell fragment seat 4, the upper end of spring 5 is fixed on the lower end of annular lug 6, the lower end of spring 5 and the bottom connection of housing 1 cavity 3 touch, the bottom of described shell fragment seat 4 is along the circumferential direction provided with annular groove 9, the sidewall of described housing 1 is arranged with two caging bolts 10, the screw rod of caging bolt 10 stretches in the annular groove 9 of shell fragment seat 4 bottom through housing 1 sidewall, the middle part of described shell fragment seat 4 upper surface is provided with groove 7, centrifugal-block 8 is provided with in groove 7, with bolt 13, centrifugal-block 8 is fixed in described groove 7, described touching shell fragment 2 is arranged on the lower surface of shell fragment seat 4, under the effect of spring 5, the upper surface of shell fragment seat 4 contacts with the top of cavity 3, now the screw rod of described caging bolt 10 just contacts with the lower end surface of described annular groove 9, the middle part of described housing 1 upper surface is just provided with the first circular hole 11 to the groove 7 of shell fragment seat 4, be convenient to the dismounting of centrifugal-block 8, the middle part of the lower surface of housing 1 is provided with the second circular hole 12, , the bottom of shell fragment seat 4 is exposed outside housing 1 through the second circular hole 12.
As shown in Figure 1 and Figure 2; in order to make centrifugal-block 8 easy accessibility; configuration two cover centrifugal-block 8, namely one is operation block, the weight that weight set is adjusted needed for action for overrunning; another is test block; can weight set be that rated speed just can the weight of action, so action when testing overspeed protection device, as long as operation block taken off; install test block, about unit being reached nominal operation rotating speed, observe action situation.
As shown in Figure 3, overspeed protection device comprises main shaft anchor ear 31, equilibrate counterweight 32, electrical apparatus release 33, hydrovalve 34, electric signal switch 35 and above-mentioned prober 36 of overrunning, main shaft anchor ear 31 holds main shaft 30 tightly, the main shaft anchor ear 31 that prober 36 and equilibrate counterweight 32 symmetry of overrunning is arranged on main shaft 30 circumference place rotates with main shaft 30, electrical apparatus release 33 is arranged on main shaft 30 side and leaves spacing with prober 36 of overrunning, hydrovalve 34, electric signal switch 35 connects electrical apparatus release 33, when the rotating speed of water turbine set raises, the centrifugal-block 8 of overrunning in prober 36 Compress Spring 5 under the influence of centrifugal force, touching shell fragment 2 protracts and touches electrical apparatus release 33, electrical apparatus release 33 action, hydrovalve 34 commutates, oil circuit is switched, its stator butterfly valve controlled or other device actions, electric signal switch 35 action simultaneously, send signal.When after trouble shooting, hand resetting electrical apparatus release 33, hydrovalve 34 and electric signal switch 35 reset simultaneously.
Claims (7)
1. a water turbine is overrun prober, it is characterized in that: comprise housing, touching shell fragment and expansion device, described enclosure interior is provided with a cavity, expansion device is movably arranged in enclosure interior cavity, described expansion device comprises shell fragment seat and spring, the top of shell fragment seat is circumferentially provided with annular lug, described spring housing is contained on shell fragment seat, the upper end of spring is fixed on the lower end of annular lug, the lower end of spring and the bottom connection of housing hollow touch, the upper surface of shell fragment seat contacts with the top of cavity under the action of the spring, the bottom of shell fragment seat is exposed outside housing through the bottom of cavity, the middle part of described shell fragment seat upper surface is provided with groove, centrifugal-block is provided with in groove, with bolt, centrifugal-block is fixed in described groove, described touching shell fragment is arranged on the lower surface of shell fragment seat.
2. water turbine as claimed in claim 1 is overrun prober, it is characterized in that: the bottom of described shell fragment seat is along the circumferential direction provided with annular groove, the sidewall of described housing is arranged with two caging bolts, the screw rod of caging bolt stretches in the annular groove of shell fragment seat bottom through housing sidewall.
3. water turbine as claimed in claim 2 is overrun prober, and it is characterized in that: when the upper surface of described shell fragment seat contacts with cavity top, the screw rod of described caging bolt just contacts with the lower end surface of described annular groove.
4. water turbine as claimed in claim 1 is overrun prober, it is characterized in that: the middle part of described housing upper surface is just provided with the first circular hole to the groove of shell fragment seat.
5. water turbine as claimed in claim 1 is overrun prober, and it is characterized in that: the middle part of described housing lower surface is provided with the second circular hole, the bottom of shell fragment seat is exposed outside housing through the second circular hole.
6. water turbine as claimed in claim 1 is overrun prober, it is characterized in that: described housing and shell fragment seat all cylindrical.
7. a water turbine overspeed protection device; comprise prober of overrunning, main shaft anchor ear, equilibrate counterweight, electrical apparatus release, hydrovalve and electric signal switch; main shaft anchor ear holds main shaft tightly; on the main shaft anchor ear that prober and the equilibrate counterweight symmetry of overrunning is arranged on main shaft circumference place and with main axis; electrical apparatus release is arranged on main shaft side and leaves spacing with prober of overrunning; hydrovalve, electric signal switch connect electrical apparatus release, it is characterized in that: described in overrun the overrun prober of prober according to any one of claim 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420768004.XU CN204283723U (en) | 2014-12-09 | 2014-12-09 | To overrun prober and comprise the water turbine overspeed protection device of prober of overrunning |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420768004.XU CN204283723U (en) | 2014-12-09 | 2014-12-09 | To overrun prober and comprise the water turbine overspeed protection device of prober of overrunning |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204283723U true CN204283723U (en) | 2015-04-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420768004.XU Active CN204283723U (en) | 2014-12-09 | 2014-12-09 | To overrun prober and comprise the water turbine overspeed protection device of prober of overrunning |
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| Country | Link |
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| CN (1) | CN204283723U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113638838A (en) * | 2021-08-12 | 2021-11-12 | 武汉三联电工有限公司 | Hydraulic turbine mechanical over-speed protection device |
-
2014
- 2014-12-09 CN CN201420768004.XU patent/CN204283723U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113638838A (en) * | 2021-08-12 | 2021-11-12 | 武汉三联电工有限公司 | Hydraulic turbine mechanical over-speed protection device |
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