CN101265872A - Hydroturbine possessing reel type valve servo - Google Patents
Hydroturbine possessing reel type valve servo Download PDFInfo
- Publication number
- CN101265872A CN101265872A CNA2008100530214A CN200810053021A CN101265872A CN 101265872 A CN101265872 A CN 101265872A CN A2008100530214 A CNA2008100530214 A CN A2008100530214A CN 200810053021 A CN200810053021 A CN 200810053021A CN 101265872 A CN101265872 A CN 101265872A
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- servomotor
- cylinder
- type valve
- piston rod
- piston
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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 invention relates to a hydraulic turbine with a cylinder-type valve servomotor which comprises a cylinder-type valve body, a hydraulic turbine top cap, a servomotor cylinder, a servomotor piston, a piston rod thereof, and an upper servomotor cylinder head and a lower servomotor cylinder head, both of which are solidly connected with the servomotor cylinder. Oil tubs which can enter the cavity of the servomotor are arranged at the upper servomotor cylinder head and the lower servomotor cylinder head; the piston rod of the servomotor is solidly connected with the cylinder-type valve body; the lower servomotor cylinder head of the servomotor is solidly connected with the upper side of the top cap; the piston rod has a guide sleeve; the aperture at a medial segment of the cylinder body of a piston hole which is at the lower servomotor cylinder head is increased and matched with the guide sleeve when the guide sleeve is inserted. As mechanical buffer devices are both arranged at the upper servomotor cylinder head and the lower servomotor cylinder head; even though an external control system fails, the cylinder valve can still have buffering effect when closing to a closed state or an open state, thus avoiding accidents; owing to an adjusting pad ring, the accuracy of the relative installation positions of the cylinder valve and the servomotor is guaranteed.
Description
Technical field
The invention belongs to a kind of water turbine, particularly relate to a kind of water turbine that has cylinder type valve servo.
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 present invention 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 cylinder type valve servo convenient for installation and maintenance simple in structure.
The present invention 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 present invention 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 good effect that the present invention 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 invention when being placed on horizontal position;
Fig. 2 is the enlarged diagram of Fig. 1 middle washer.
Embodiment
For further understanding content of the present invention, 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 cylinder type valve servo, 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 cylinder type valve servo 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 cylinder type valve servo 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 cylinder type valve servo 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 |
|---|---|---|---|
| CNB2008100530214A CN100557232C (en) | 2008-05-07 | 2008-05-07 | The water turbine that has cylinder type valve servo |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2008100530214A CN100557232C (en) | 2008-05-07 | 2008-05-07 | The water turbine that has cylinder type valve servo |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101265872A true CN101265872A (en) | 2008-09-17 |
| CN100557232C CN100557232C (en) | 2009-11-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2008100530214A Expired - Fee Related CN100557232C (en) | 2008-05-07 | 2008-05-07 | The water turbine that has cylinder type valve servo |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100557232C (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101865069A (en) * | 2010-06-09 | 2010-10-20 | 常州液压成套设备厂有限公司 | Locking device for servomotor |
| CN101985914A (en) * | 2010-12-01 | 2011-03-16 | 常州液压成套设备厂有限公司 | Hydraulic servomotor for hydroelectric generating set |
| CN102011681A (en) * | 2010-06-05 | 2011-04-13 | 常州液压成套设备厂有限公司 | Underground workshop servomotor |
| CN103511173A (en) * | 2013-09-24 | 2014-01-15 | 东方电气集团东方电机有限公司 | Water turbine provided with four servomotors on top cover |
| CN103645349A (en) * | 2013-12-03 | 2014-03-19 | 镇江腾龙智能科技有限公司 | Improved design for cooperation between a lower piston and probe base of online streaming potential measuring instrument |
| CN108843479A (en) * | 2018-06-28 | 2018-11-20 | 中国电建集团华东勘测设计研究院有限公司 | Cylindrical valve overcurrent characteristic test method and measuring device |
| CN110985744A (en) * | 2018-10-02 | 2020-04-10 | 通用电气再生能源技术公司 | Device and method for ring door closure optimization |
| CN115430994A (en) * | 2022-07-14 | 2022-12-06 | 国家能源集团科学技术研究院有限公司 | Integral assembling process for large mechanical synchronous cylindrical valve |
-
2008
- 2008-05-07 CN CNB2008100530214A patent/CN100557232C/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102011681A (en) * | 2010-06-05 | 2011-04-13 | 常州液压成套设备厂有限公司 | Underground workshop servomotor |
| CN101865069A (en) * | 2010-06-09 | 2010-10-20 | 常州液压成套设备厂有限公司 | Locking device for servomotor |
| CN101985914A (en) * | 2010-12-01 | 2011-03-16 | 常州液压成套设备厂有限公司 | Hydraulic servomotor for hydroelectric generating set |
| CN101985914B (en) * | 2010-12-01 | 2012-07-18 | 常州液压成套设备厂有限公司 | Hydraulic servomotor for hydroelectric generating set |
| CN103511173A (en) * | 2013-09-24 | 2014-01-15 | 东方电气集团东方电机有限公司 | Water turbine provided with four servomotors on top cover |
| CN103511173B (en) * | 2013-09-24 | 2016-01-27 | 东方电气集团东方电机有限公司 | Top cover arrangement has the water turbine of four servomotors |
| CN103645349A (en) * | 2013-12-03 | 2014-03-19 | 镇江腾龙智能科技有限公司 | Improved design for cooperation between a lower piston and probe base of online streaming potential measuring instrument |
| CN108843479A (en) * | 2018-06-28 | 2018-11-20 | 中国电建集团华东勘测设计研究院有限公司 | Cylindrical valve overcurrent characteristic test method and measuring device |
| CN108843479B (en) * | 2018-06-28 | 2024-03-19 | 中国电建集团华东勘测设计研究院有限公司 | Cylindrical valve overcurrent characteristic test method and measurement device |
| CN110985744A (en) * | 2018-10-02 | 2020-04-10 | 通用电气再生能源技术公司 | Device and method for ring door closure optimization |
| CN110985744B (en) * | 2018-10-02 | 2023-06-06 | 通用电气再生能源技术公司 | Apparatus and method for loop door closure optimization |
| CN115430994A (en) * | 2022-07-14 | 2022-12-06 | 国家能源集团科学技术研究院有限公司 | Integral assembling process for large mechanical synchronous cylindrical valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100557232C (en) | 2009-11-04 |
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Granted publication date: 20091104 Termination date: 20150507 |
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| EXPY | Termination of patent right or utility model |