CN218780431U - Hydraulic turbine speed regulator and hydraulic turbine speed regulator segmentation closed system - Google Patents
Hydraulic turbine speed regulator and hydraulic turbine speed regulator segmentation closed system Download PDFInfo
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- CN218780431U CN218780431U CN202223013123.8U CN202223013123U CN218780431U CN 218780431 U CN218780431 U CN 218780431U CN 202223013123 U CN202223013123 U CN 202223013123U CN 218780431 U CN218780431 U CN 218780431U
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- switching valve
- roller
- governor
- inflection point
- hydraulic turbine
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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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Abstract
The utility model relates to a hydroelectric generation technical field discloses a hydraulic turbine speed regulator and hydraulic turbine speed regulator segmentation closed system, and hydraulic turbine speed regulator segmentation closed system includes: a sectional closing valve; one end of the crank arm is connected with the servomotor telescopic hinged support, and the other end of the crank arm is connected with the speed regulating shaft; the inflection point roller is connected with the inflection arm through a plurality of adjusting bolts, a first step and a second step which are in smooth transition are arranged on the peripheral surface of the inflection point roller, and the second step is higher than the first step; the switching valve is used for controlling a control oil path of the sectional closing valve and comprises a switching valve stroke rod, and the switching valve stroke rod is provided with a switching valve roller which is in elastic contact with the outer peripheral surface of the inflection point roller; when the adjusting bolt is loosened, the turning point roller is rotated to adjust the turning point angle of the speed adjusting shaft; when the switching valve roller rolls from the first step to the second step, the switching valve stroke rod is compressed, and the switching valve controls the sectional valve closing action. Therefore, the switching valve is convenient to adjust the stroke, convenient to adjust and measure the rotation angle of the speed regulating shaft and high in adjustment precision.
Description
Technical Field
The utility model relates to a hydroelectric generation technical field, more specifically say, relate to a hydraulic turbine speed regulator segmentation closed system. Furthermore, the utility model discloses still relate to a hydraulic turbine governor of including above-mentioned hydraulic turbine governor segmentation closed system.
Background
The sectional closing system of the water turbine speed regulator comprises a sectional closing valve, a stroke inflection point mechanism and a switching valve, wherein the front end of the switching valve is provided with a stroke rod.
When the opening degree of the guide vane is reduced to the sectional closing inflection point, the stroke inflection point mechanism compresses the stroke rod of the switching valve, and the switching valve controls the direction switching of the oil way so as to enable the sectional closing valve to act.
The relative position change of the stroke inflection point mechanism and the switching valve can lead the guide vane opening degree to be different when the sectional closing valve acts. The existing stroke inflection point mechanism is formed by welding square steel and channel steel, is difficult to adjust relative position and needs to be assembled on site; the steel has low hardness and is easy to wear, and the welding joint has high maintenance difficulty; the guide vane servomotor is used for indirectly adjusting the rotation angle of the speed adjusting shaft, and the adjusting precision is relatively low.
In summary, an urgent need exists in the art to provide a segmented closing system which is convenient for adjusting and measuring the rotation angle of the speed adjusting shaft and has high adjustment precision.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing a new system is closed in hydraulic turbine governor segmentation, and diverter valve stroke control easy operation is convenient for adjust and measure speed governing axle rotation angle, and the regulation precision is higher.
Furthermore, the utility model also provides a hydraulic turbine governor of including above-mentioned hydraulic turbine governor segmentation closed system.
In order to achieve the above object, the present invention provides the following technical solutions:
a governor sectionalizing closing system of a hydro turbine, comprising:
a sectional closing valve;
one end of the crank arm is used for being connected with the servomotor telescopic hinged support, and the other end of the crank arm is used for being connected with the speed regulation shaft;
the inflection point roller is connected with the inflection arm through a plurality of adjusting bolts, a first step and a second step which are in smooth transition are arranged on the peripheral surface of the inflection point roller, and the second step is higher than the first step;
the switching valve is used for controlling a control oil path of the segmented closing valve, a switching valve stroke rod is arranged on the switching valve, and the switching valve stroke rod is provided with a switching valve roller which is in elastic contact with the outer peripheral surface of the inflection point roller;
when the adjusting bolt is loosened, the inflection point roller is rotated to adjust the inflection point angle of the speed adjusting shaft;
when the switching valve roller rolls from the first step to the second step, the switching valve stroke rod is compressed, and the switching valve controls the segmented closing valve action.
Preferably, the second step is arranged between any two adjacent first steps.
Preferably, the degree of the central angle corresponding to the first step is the same as the degree of the central angle corresponding to the second step.
Preferably, the first steps are uniformly distributed along the outer circumferential surface of the inflection point roller, and the second steps are uniformly distributed along the outer circumferential surface of the inflection point roller.
Preferably, the end face of the inflection point roller is uniformly provided with a plurality of arc grooves along the circumferential direction, and the arc grooves are used for installing the adjusting bolts.
Preferably, the switching valve is connected with an internal support assembly of the hydro governor through a switching valve support.
A hydro governor including a hydro governor segment closure system as described in any one of the above.
The utility model provides a water turbine speed regulator segmentation closed system when using, the servomotor promotes the flexible free bearing of servomotor to move, and the flexible free bearing of servomotor drives the turning arm and rotates, and the turning arm drives the rotation of speed governing axle, and when the diverter valve gyro wheel rolled along first step tangential, diverter valve stroke pole position was unchangeable, and the control oil circuit of segmentation closed valve maintains initial condition, and the segmentation closed valve does not move; when the switching valve roller rolls from the first step to the second step, the switching valve stroke rod is compressed, the switching valve stroke rod pushes the switching valve spool to move, and then the control oil path switching oil path of the sectional closing valve is controlled, and the sectional closing valve acts.
Therefore, the utility model provides a hydraulic turbine speed regulator segmentation closed system, the first step and the second step of usable flex point gyro wheel outer peripheral face, the stroke of adjusting the diverter valve stroke pole changes the switching of diverter valve, and then the operating condition of control segmentation shut-off valve compares in prior art, adjusts convenient, the operation of being convenient for.
Meanwhile, the sectional closing system of the water turbine speed regulator can rotate the inflection point roller to adjust the inflection point angle of the speed regulating shaft when the adjusting bolt is loosened, is convenient to adjust and high in adjusting precision, can directly measure the inflection point angle of the speed regulating shaft, and is convenient to measure.
Furthermore, the utility model also provides a hydraulic turbine governor of including above-mentioned hydraulic turbine governor segmentation closed system.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic front view of an embodiment of a hydro governor sectionalizing closing system provided by the present invention;
FIG. 2 is a schematic side view of FIG. 1;
FIG. 3 is an enlarged view of a portion of FIG. 1;
FIG. 4 is a hydraulic schematic of the sectionalized closure system.
In fig. 1-4:
the device comprises a crank arm 1, a knee roller 2, a first step 21, a second step 22, an adjusting bolt 23, a switching valve 3, a travel rod 31, a switching valve bracket 4, a sectional closing valve 5, a servomotor telescopic hinge seat 6, a speed adjusting shaft 7 and a built-in bracket assembly 8.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.
The core of the utility model is to provide a new system is closed in hydraulic turbine speed regulator segmentation, and diverter valve stroke is adjusted easy operation, is convenient for adjust and measure speed governing axle rotation angle, and adjusts the precision higher.
Furthermore, the utility model also provides a hydraulic turbine governor of including above-mentioned hydraulic turbine governor segmentation closed system.
Referring to fig. 1-4, fig. 1 is a schematic front view of a sectional closing system of a governor of a hydraulic turbine according to an embodiment of the present invention; FIG. 2 is a schematic side view of FIG. 1; FIG. 3 is an enlarged view of a portion of FIG. 1; FIG. 4 is a hydraulic schematic of the sectionalized closure system.
The utility model provides a hydraulic turbine speed regulator segmentation closed system, include:
a sectional closing valve 5;
one end of the crank arm 1 is used for being connected with a servomotor telescopic hinged support 6, and the other end of the crank arm is used for being connected with a speed regulating shaft 7;
the inflection point roller 2 is connected with the crank arm 1 through a plurality of adjusting bolts 23, the outer peripheral surface of the inflection point roller is provided with a first step 21 and a second step 22 which are in smooth transition, and the second step 22 is higher than the first step 21;
a switching valve 3 for controlling a control oil path of the section closing valve 5, on which a switching valve stroke rod 31 is provided, the switching valve stroke rod 31 being provided with a stroke rod roller for elastically contacting with an outer peripheral surface of the inflection point roller 2;
when the adjusting bolt 23 is loosened, the turning point angle of the speed regulating shaft can be adjusted by rotating the turning point roller 2;
when the selector valve roller rolls from the first step 21 to the second step 22, the selector valve stroke rod 31 is compressed, and the selector valve 3 controls the operation of the stage closing valve 5.
Referring to fig. 1, one end of a crank arm 1 is movably connected with a servomotor telescopic hinged support 6, and the other end is connected with a speed regulating shaft 7 through a half-key joint; the switching valve 3 is connected with an internal support assembly 8 of the hydraulic turbine governor through a switching valve support 4.
The specific shapes, structures and dimensions of the crank arm 1, the switching valve 3 and the sectional closing valve 5 are determined according to the actual production requirements by referring to the prior art, and are not described in detail herein.
The inflection point idler wheel 2 is connected with the inflection arm 1 through a plurality of adjusting bolts 23, and when the adjusting bolts 23 are loosened, the inflection point angle of the speed regulating shaft 7 can be adjusted by rotating the inflection point idler wheel 2; in order to stably connect the inflection point roller 2 and the inflection arm 1, preferably, a plurality of arc grooves may be formed in the end surface of the inflection point roller 2 in the circumferential direction, and the arc grooves are used for installing the adjusting bolts 23.
The outer peripheral face of inflection point gyro wheel 2 is equipped with first step 21 and second step 22, and the gentle transition setting of the two to keep the diverter valve gyro wheel of diverter valve 3 and the outer peripheral face elastic contact of inflection point gyro wheel 2, avoid the diverter valve gyro wheel jamming even to block.
The number of the first steps 21 and the second steps 22 is at least one, and considering the mass center balance problem of the inflection point roller 2, it is preferable that the first steps 21 are uniformly distributed along the outer circumferential surface of the inflection point roller 2, and the second steps 22 are uniformly distributed along the outer circumferential surface of the inflection point roller 2, so that the center of gravity of the inflection point roller 2 is located on the geometric center of gravity thereof.
In order to facilitate the rapid adjustment of the opening and closing of the switching valve 3, referring to fig. 3, preferably, a second step 22 may be disposed between any two adjacent first steps 21.
Preferably, in order to facilitate the processing and manufacturing of the outer peripheral surface of the inflection point roller 2, the number of the central angles corresponding to the first step 21 may be set to be the same as the number of the central angles corresponding to the second step 22.
When the sectional type switching valve is used, the servomotor pushes the servomotor telescopic hinged support 6 to move, the servomotor telescopic hinged support 6 drives the crank arm 1 to rotate, the crank arm 1 drives the speed regulating shaft 7 to rotate, when a roller of the switching valve rolls along the tangential direction of the first step 21, the position of the stroke rod 31 of the switching valve is unchanged, the control oil path of the sectional type closing valve 5 maintains the initial state, and the sectional type closing valve 5 does not act; when the selector valve roller rolls from the first step 21 to the second step 22, the selector valve stroke rod 31 is compressed, the selector valve stroke rod 31 pushes the valve body of the selector valve 3 to move, and the control oil path switching oil path of the stage shutoff valve 5 is controlled, so that the stage shutoff valve 5 operates.
In this embodiment, the first step 21 and the second step 22 on the outer peripheral surface of the inflection point roller 2 can be used to adjust the stroke of the stroke rod 31 of the switching valve to change the switching of the switching valve 3, so as to control the working state of the stage closing valve 5.
Meanwhile, the sectional closing system of the water turbine speed regulator can rotate the inflection point idler wheel 2 to adjust the inflection point angle of the speed regulating shaft when the adjusting bolt 23 is loosened, is convenient to adjust and high in adjusting precision, can directly measure the inflection point angle of the speed regulating shaft, and is convenient to measure.
In addition to the above-mentioned governor segment closing system, the present invention further provides a governor segment closing system including the governor segment closing system disclosed in the above-mentioned embodiment, and the structure of other parts of the governor segment is referred to the prior art, which is not described herein again.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
It is right above the utility model provides a hydraulic turbine speed governor and hydraulic turbine speed governor segmentation closed system has carried out the detailed introduction. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the scope of the appended claims.
Claims (7)
1. A governor staged shutdown system for a hydro turbine, comprising:
a sectional closing valve;
one end of the crank arm is used for being connected with the servomotor telescopic hinged support, and the other end of the crank arm is used for being connected with the speed regulation shaft;
the inflection point idler wheel is connected with the inflection arm through a plurality of adjusting bolts, a first step and a second step which are in smooth transition are arranged on the peripheral surface of the inflection point idler wheel, and the second step is higher than the first step;
the switching valve is used for controlling a control oil path of the segmented closing valve, a switching valve stroke rod is arranged on the switching valve, and the switching valve stroke rod is provided with a switching valve roller which is in elastic contact with the outer peripheral surface of the inflection point roller;
when the adjusting bolt is loosened, the inflection point roller is rotated to adjust the inflection point angle of the speed adjusting shaft;
when the switching valve roller rolls from the first step to the second step, the switching valve stroke rod is compressed, and the switching valve controls the segmented closing valve action.
2. The governor segment closure system of claim 1, wherein the second step is disposed between any adjacent two of the first steps.
3. The governor segment closure system of claim 1, wherein the first step corresponds to a center angle in the same number of degrees as the second step.
4. The governor subsection shutdown system of claim 1, wherein the first steps are evenly distributed along the outer circumferential surface of the knee roller, and the second steps are evenly distributed along the outer circumferential surface of the knee roller.
5. The segmental closure system of a hydro governor according to any of claims 1 to 4, wherein the end surface of the knee roller is uniformly provided with a plurality of arc grooves in the circumferential direction, and the arc grooves are used for mounting the adjusting bolts.
6. The governor break shut-off system of any of claims 1-4, wherein the switching valve is connected to the governor built-in bracket assembly by a switching valve bracket.
7. A hydro governor including the hydro governor segment closure system of any one of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223013123.8U CN218780431U (en) | 2022-11-11 | 2022-11-11 | Hydraulic turbine speed regulator and hydraulic turbine speed regulator segmentation closed system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223013123.8U CN218780431U (en) | 2022-11-11 | 2022-11-11 | Hydraulic turbine speed regulator and hydraulic turbine speed regulator segmentation closed system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218780431U true CN218780431U (en) | 2023-03-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223013123.8U Active CN218780431U (en) | 2022-11-11 | 2022-11-11 | Hydraulic turbine speed regulator and hydraulic turbine speed regulator segmentation closed system |
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| Country | Link |
|---|---|
| CN (1) | CN218780431U (en) |
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2022
- 2022-11-11 CN CN202223013123.8U patent/CN218780431U/en active Active
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