CN201190627Y - Water turbine with valve servo - Google Patents
Water turbine with valve servo Download PDFInfo
- Publication number
- CN201190627Y CN201190627Y CNU2008200746708U CN200820074670U CN201190627Y CN 201190627 Y CN201190627 Y CN 201190627Y CN U2008200746708 U CNU2008200746708 U CN U2008200746708U CN 200820074670 U CN200820074670 U CN 200820074670U CN 201190627 Y CN201190627 Y CN 201190627Y
- Authority
- CN
- China
- Prior art keywords
- servomotor
- piston rod
- cylinder cover
- piston
- cylinder
- 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 - Lifetime
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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
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- Hydraulic Turbines (AREA)
Abstract
The utility model relates to a hydraulic turbine with a valve servomotor. The hydraulic turbine comprises a cylindrical valve body, a hydraulic turbine top cover, a servomotor cylinder body, a servomotor piston, a servomotor piston rod, and upper servomotor cylinder cover and a lower servomotor cylinder cover which are fixedly connected with the servomotor cylinder body; the upper servomotor cylinder cover and the lower servomotor cylinder cover are provided with oil pipes accessing to the inner chamber of the servomotor, the servomotor piston rod and the cylindrical valve body are fixedly connected together, and the lower servomotor cylinder cover is fixedly connected above the top cover; the piston rod is provided with a guide sleeve; the aperture of the upper piston hole on the lower servomotor cylinder cover at one section of the inside of the cylinder body is enlarged and matched with each other when the guide sleeve is inserted in; one surface of the upper servomotor cylinder cover towards the servomotor cylinder body is provided with upwards concave circular grooves of which diameters match with each other when the upper end of the piston rod is inserted upwards. Because the upper servomotor cylinder cover and the lower servomotor cylinder cover are provided with mechanical buffering devices, even if the external control system fails, the cylindrical valve is buffered when approximately full switched off or switched on, thereby accidents are avoided; and because of the regulating gasket ring, the precision of the opposite installation positions of the cylindrical valve and the servomotor is guaranteed.
Description
Technical field
The utility model belongs to a kind of water turbine, particularly relates to a kind of water turbine that has the valve servomotor.
Background technique
When water turbine adopts the cartridge type valve as the valve that starts and stop water turbine, for controlling the cartridge type valve body with the servomotor of hydraulic operation.Servomotor needs to satisfy a various operating mode of valve operation, and particularly the valve body of the cartridge type valve that is driven by the servomotor piston rod need proceed slowly when running near the end of travel that opens or closes.And existing servomotor just has unidirectional buffer structure in order to achieve the above object, and the oil channel structures complexity that is adopted, and it is poor to be easy to damage its reliability.This structure also is not easy to install and safeguard.In use also can't monitor in addition for the valve body position of cartridge type valve.
Summary of the invention
The utility model provides a kind of and can proceed slowly when the cartridge type valve body runs near the end of travel that opens or closes for solving the technical problem that exists in the known technology, and the water turbine that has the valve servomotor convenient for installation and maintenance simple in structure.
The utility model for the technological scheme that solves the technical problem that exists in the known technology and take is: it includes cartridge type valve body, water-turbine top cover, servomotor cylinder body, servomotor piston and piston rod thereof and the servomotor that is fixed together with servomotor cylinder body cylinder cap up and down, on the cylinder cap oil pipe that can lead to the servomotor inner chamber is arranged up and down at described servomotor, described servomotor piston rod and described cartridge type valve body are fixed together, and cylinder cap is connected in described water-turbine top cover top under the described servomotor; Described piston rod is fixed with guide sleeve below piston; Wearing the hole of piston rod under the described servomotor on the cylinder cap is strengthening towards the aperture of one section of the inboard one side of servomotor cylinder body, aperture after it strengthens is for gapped each other when described guide sleeve inserts, and there is cylinder cap oil pipe in addition under the servomotor at the place, crack during this time; Described servomotor upper cylinder cover simultaneously has the fovea superior circular groove towards servomotor cylinder body inboard, and the diameter of this fovea superior circular groove is for gapped each other when insert the piston rod upper end, and the crack is located to have towards servomotor upper cylinder cover oil pipe in addition during this time.
The utility model can also adopt following technological scheme:
Be fixed with gasket ring above described water-turbine top cover, cylinder cap is fixed on the described gasket ring under the described servomotor.
There is a slotted hole in this slotted hole of described piston rod, to be inserted with linear displacement transducer at described servomotor piston rod center; One end of described linear displacement transducer is fixed on the described servomotor upper cylinder cover.
The hole that the hole that fixing described servomotor piston rod is arranged on described cartridge type valve body, described servomotor piston rod end are passed on the described cartridge type valve body is fixed together with saddle shaped washer and nut and described cartridge type valve body.
Advantage and the good effect that the utlity model has are: because employing covers at servomotor cylinder mechanical cushioning device is arranged all, when piston moves near servomotor cylinder cap (end of travel), the motion speed of piston can slow down, thereby promptly be externally under the malfunctioning situation of control system, servomotor can guarantee that still a valve has certain buffering near complete shut-down (standard-sized sheet) time, thereby accidents such as bump do not take place in assurance; Owing on the position of servomotor bottom and top cover installation, the gasket ring that can be used for adjusting is arranged, so just make the work of adjusting tube valve and servomotor relative mounting positions convenient, simple, improved the accuracy on a valve and the servomotor relative mounting positions; At the servomotor upper cylinder cover displacement transducer that is used to detect piston position is housed also, position of piston can be passed to constantly level controlling system, thereby guaranteed the safety and precise operation of system.
Description of drawings
Fig. 1 is the structural representation of servomotor of the present utility model when being placed on horizontal position;
Fig. 2 is the enlarged diagram of Fig. 1 middle washer.
Embodiment
For further understanding summary of the invention of the present utility model, characteristics and effect, exemplify following examples (being that structure shown in Figure 1 is holded up in use, the state of servomotor cylinder body above water-turbine top cover) now, and conjunction with figs. is described in detail as follows:
As Fig. 1, shown in 2, the through hole that passes piston rod 4 is arranged on cartridge type valve body 1, during installation after piston rod 4 passes, on saddle type pad 3 pads, then with attaching nut's 2 lockings, piston rod 4 passes water-turbine top cover 5, gasket ring 6, cylinder cap 7 and piston 10 under the servomotor, fixedly connected with piston 10 by upper piston nut 11 again, gasket ring 6 is welded on the top cover 5, gasket ring 6 then, cylinder cap 7 is connected with servomotor cylinder body 9 usefulness piston bolts under the servomotor, servomotor upper cylinder cover 14 is connected with bolt equally with servomotor cylinder body 9, and displacement transducer 14 is installed on servomotor upper cylinder cover 13, porosely in piston rod 4 is used to hold sensor 14.Piston rod 4 is equipped with guide sleeve 17 below piston 10, pass the hole of piston rod 4 at following cylinder cap 7, the aperture 8 that one section expansion is arranged near the aperture of servomotor cylinder body 9 inner chambers one side, when guide sleeve 17 inserts 8 one sections in apertures, 8 is gapped each other with the external diameter of guide sleeve 17 in the aperture, and there is the oil pipe that leads to beyond the cylinder cap 7 down at 8 places in the aperture.At upper cylinder cover 13 the trapezoidal fovea superior circular groove that holds piston unt 11 and piston rod upper end is arranged near servomotor cylinder body 9 inner chambers one side.Inserting piston rod 4 upper end parts at upper cylinder cover 13 trapezoidal fovea superior circular grooves has one section groove internal diameter to dwindle part 12, dwindle the external diameter of one section internal diameter of part 12 at this groove internal diameter greater than piston rod 4 upper end parts, be that between is gapped, and dwindle part 12 places at this groove internal diameter the oil pipe that leads to beyond the upper cylinder cover 13 is arranged.There are turnover oilhole and servomotor piston cavity to connect in addition on the cylinder cap up and down at servomotor.Concrete course of action is as follows: when cartridge type valve body 1 is closed, the upper cavity pressure oil of servomotor piston 10 enters by the oil pipe of upper cylinder cover 13, the cavity of resorption oil of piston 10 is by the oil pipe discharge of cylinder cap 7 down, piston 10 promotes piston rod 4 and moves downward, piston rod 4 promotes cartridge type valve body 1 action downwards then, thereby realization cartridge type valve body 1 is closed.When cartridge type valve body 1 is opened, the cavity of resorption oil-feed of piston 10, the epicoele oil extraction, piston 10 promotion piston rods 4 move upward then, and piston rod 4 is mentioned cartridge type valve body 1 and is moved upward, thereby realizes the unlatching of cartridge type valve body 1.When piston 10 was near the complete shut-down position, the guide sleeve 17 of piston rod 4 was inserted into down 8 the insides, aperture that cylinder cap 7 is worn piston rod 4 holes, reduced area of passage thereby form the gap, reduce oily flow velocity, reduce oil extraction speed, reduce the piston motion speed, thereby realize the purpose of buffering.When piston 10 was near fully open position, the upper end of piston rod 4 was inserted upper cylinder cover 13 trapezoidal fovea superior circular groove groove internal diameters and is dwindled among the part 12, reduces area of passage thereby form the gap equally, realizes the purpose of buffering.When piston 10 run near servomotor up and down the buffering during cylinder cap 13,7 be pure mechanical damping, under any state, all can realize function.When mounted, adjust the installation perpendicularity that axial distance between servomotor cylinder body 9 and the cartridge type valve body 1 is adjusted cylinder type valve servo piston rod 4 by the thickness of reconditioning gasket ring 6, also can be if the installation perpendicularity of axial distance between servomotor cylinder body 9 and the cartridge type valve body 1 and cylinder type valve servo piston rod 4 is suitable without this gasket ring 6.Adjust the axial location of the axis of cartridge type valve body 1 by the adjustment piece 15 that is welded on the top cover 5 then, can install and adjust to the tram very easily like this with respect to hole on the cartridge type valve body 1.After adjustment was finished, design had locking nut on adjustment bolt 16, is used for fixing the relative position of servomotor cylinder body 9 and top cover 5.After the servomotor installation, the high-precision position transducer 14 of height is inserted in servomotor upper cylinder cover 13 and the piston rod 4 from top, then that displacement transducer 14 is fixing with upper cylinder cover 13, thus finish the structure assembling.
Claims (4)
1. water turbine that has the valve servomotor, it includes cartridge type valve body, water-turbine top cover, servomotor cylinder body, servomotor piston and piston rod thereof and the servomotor that is fixed together with servomotor cylinder body cylinder cap up and down, on the cylinder cap oil pipe that can lead to the servomotor inner chamber is arranged up and down at described servomotor, described servomotor piston rod and described cartridge type valve body are fixed together, and it is characterized in that: cylinder cap is connected in described water-turbine top cover top under the described servomotor; Described piston rod is fixed with guide sleeve below piston; Wearing the hole of piston rod under the described servomotor on the cylinder cap is strengthening towards the aperture of one section of the inboard one side of servomotor cylinder body, aperture after it strengthens is for gapped each other when described guide sleeve inserts, and there is cylinder cap oil pipe in addition under the servomotor at the place, crack during this time; Described servomotor upper cylinder cover simultaneously has the fovea superior circular groove towards servomotor cylinder body inboard, and the diameter of this fovea superior circular groove is for gapped each other when insert the piston rod upper end, and the crack is located to have towards servomotor upper cylinder cover oil pipe in addition during this time.
2. the water turbine that has the valve servomotor according to claim 1 is characterized in that: be fixed with gasket ring above described water-turbine top cover, cylinder cap is fixed on the described gasket ring under the described servomotor.
3. the water turbine that has the valve servomotor according to claim 1 and 2 is characterized in that: have a slotted hole to be inserted with linear displacement transducer in this slotted hole of described piston rod at described servomotor piston rod center; One end of described linear displacement transducer is fixed on the described servomotor upper cylinder cover.
4. the water turbine that has the valve servomotor according to claim 1, it is characterized in that: the hole of fixing described servomotor piston rod is arranged on described cartridge type valve body, and the hole that described servomotor piston rod end is passed on the described cartridge type valve body is fixed together with saddle shaped washer and nut and described cartridge type valve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200746708U CN201190627Y (en) | 2008-05-07 | 2008-05-07 | Water turbine with valve servo |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200746708U CN201190627Y (en) | 2008-05-07 | 2008-05-07 | Water turbine with valve servo |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201190627Y true CN201190627Y (en) | 2009-02-04 |
Family
ID=40334787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200746708U Expired - Lifetime CN201190627Y (en) | 2008-05-07 | 2008-05-07 | Water turbine with valve servo |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201190627Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103711634A (en) * | 2013-12-29 | 2014-04-09 | 国家电网公司 | Magnetic ring stroke sensing type water turbine blade stroke feedback device |
| CN105971805A (en) * | 2016-06-21 | 2016-09-28 | 中国水利水电科学研究院 | Integrated francis type water turbine-generator unit for regulating flow through cylindrical valve |
-
2008
- 2008-05-07 CN CNU2008200746708U patent/CN201190627Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103711634A (en) * | 2013-12-29 | 2014-04-09 | 国家电网公司 | Magnetic ring stroke sensing type water turbine blade stroke feedback device |
| CN105971805A (en) * | 2016-06-21 | 2016-09-28 | 中国水利水电科学研究院 | Integrated francis type water turbine-generator unit for regulating flow through cylindrical valve |
| CN105971805B (en) * | 2016-06-21 | 2018-05-29 | 中国水利水电科学研究院 | A kind of self-contained Francis hydroturbine generator set using tubular valve regulating flow |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20080507 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |