CN111853332A - Axial direction movement adjustable disc valve hydraulic control device - Google Patents
Axial direction movement adjustable disc valve hydraulic control device Download PDFInfo
- Publication number
- CN111853332A CN111853332A CN202010554343.8A CN202010554343A CN111853332A CN 111853332 A CN111853332 A CN 111853332A CN 202010554343 A CN202010554343 A CN 202010554343A CN 111853332 A CN111853332 A CN 111853332A
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- CN
- China
- Prior art keywords
- servomotor
- valve
- locking
- control device
- hydraulic control
- 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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B11/00—Parts or details not provided for in, or of interest apart from, the preceding groups, e.g. wear-protection couplings, between turbine and generator
- F03B11/004—Valve arrangements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K35/00—Means to prevent accidental or unauthorised actuation
- F16K35/10—Means to prevent accidental or unauthorised actuation with locking caps or locking bars
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
- F16K37/0008—Mechanical means
- F16K37/0016—Mechanical means having a graduated scale
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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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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanically-Actuated Valves (AREA)
Abstract
The invention provides a disc valve hydraulic control device capable of moving and adjusting in the axial direction, which comprises a shaft sleeve, a pin shaft, a transmission shaft, a bracket, a left-handed nut, a link rod rotating sleeve, a locking bolt, a locking nut, a servomotor and a valve core of a valve, wherein the shaft sleeve is arranged on the shaft sleeve; according to the disc valve hydraulic control device capable of moving and being adjusted in the axial direction, a simple rotary sleeve structure is adopted, and the problem of installation and adjustment of the axial length of a valve is solved; the locking problem of full closing and full opening of the valve is solved by only one locking bolt; the integrated servomotor realizes lightweight design and saves cost; the open full stroke of the valve is observed by utilizing a simple scale plate structure.
Description
Technical Field
The invention relates to the field of hydroelectric facility equipment, in particular to a hydraulic control device of a disc valve, which can move in an axial direction and be adjusted.
Background
The disc-shaped drain valve of the water turbine is one of key components of the unit, and the overhauling drain quantity of the unit depends on the accumulated water quantity in the volute, the tail water pipe and the pressure pipeline and the water leakage quantity of the upstream and downstream water blocking gates. In order to ensure that a large amount of accumulated water in the volute and the pressure pipeline can automatically drain as much as possible, a drain pipe and a drain valve are arranged at the lowest part of the volute or the pressure pipeline and communicated with a tail water pipe, so that a large amount of accumulated water higher than the downstream tail water level is automatically drained, and the residual water is drained by a water pump. When the power station is overhauled, the bottom of the tail water pipe diffusion section is provided with a drain pipe and a drain valve which are communicated with the water collecting well, so that accumulated water at the bottom of the tail water pipe is drained.
The operation modes of the disc-shaped drain valve of the water turbine are generally divided into mechanical operation and hydraulic operation, and different operation modes are designed according to the actual requirements of power stations so as to meet the requirements of different power stations. The patent relates to a hydraulic operating device of a disc valve, which aims to ensure that the disc valve can be operated safely and reliably and is beneficial to normal sealing and opening and closing of a disc drain valve; if the disc drain valve works normally, the safety of normal operation and maintenance of the unit is directly influenced.
At present, a traditional disc valve hydraulic control device is commonly used, as shown in figure 1, the hydraulic control device is connected with a valve core 1-16 of a valve through a shaft sleeve 1-1, a pin shaft 1-2 and a transmission shaft 1-3; the servomotor of the hydraulic control device consists of a piston rod 1-6, a gland 1-7, an upper seal seat 1-8, a piston 1-9 and a servomotor cylinder 1-10, bolts 1-12 are used for fixing the servomotor cylinder 1-10 and a rear cover 1-11, and the servomotor is fixed on a bracket 1-4 through bolts 1-14; the travel switches 1-5 and the pointers 1-15 are used for providing full-off and full-on signals of the hydraulic control device; the technical scheme has the following defects: 1. the transmission shaft and the servomotor rod are connected by adopting single internal and external threads, so that the axial direction cannot be adjusted, and the installation is difficult; 2. the travel switch can only provide a full-closed state or a full-open state of the valve, and when foreign matter is blocked, signals cannot be transmitted; 3. the hydraulic device adopts a split servomotor, has a complex structure and is inconvenient to install; 4. the full-closed and full-open are not provided with locking devices, and the use is inconvenient.
Disclosure of Invention
The invention provides a disc valve hydraulic control device capable of moving and adjusting in the axial direction aiming at the problems and the defects in the background technology, and the invention adopts a simple rotary sleeve structure to solve the problem of installation and adjustment of the axial length of a valve; the locking problem of full closing and full opening of the valve is solved by only one locking bolt; the integrated servomotor realizes lightweight design and saves cost; the open full stroke of the valve is observed by utilizing a simple scale plate structure.
The technical scheme adopted by the invention is as follows:
a disc valve hydraulic control device capable of moving and adjusting in the axial direction comprises a shaft sleeve, a pin shaft, a transmission shaft, a bracket, a left-handed nut, a link rod rotating sleeve, a locking bolt, a locking nut, a servomotor and a valve core of a valve;
the servomotor is arranged above the bracket, a piston rod of the servomotor extends downwards into the bracket, the lower end of the piston rod of the servomotor is connected with the transmission shaft through the link rod rotary sleeve, the transmission shaft is connected with the valve core of the valve through the shaft sleeve and the pin shaft, the left-handed nut is arranged at the upper end of the transmission shaft and used for locking the transmission shaft and the link rod rotary sleeve, and the locking nut is arranged at the lower end of the piston rod of the servomotor and used for locking the piston rod and the link rod rotary sleeve of the servomotor;
The support is internally provided with a positioning plate, threaded through holes which are communicated left and right are formed in the positioning plate, a locking bolt is in threaded connection with the threaded through holes in the positioning plate and is positioned on the left side of the locking bolt, a first through hole is formed in the left side wall of the support, the left end of the locking bolt penetrates through the first through hole, an upper positioning groove and a lower positioning groove are formed in the left side wall of the connecting rod rotating sleeve on the right side of the locking bolt, and the positioning grooves are matched with the locking bolt and used for locking the positions of the upper end point and the lower end point of the connecting rod rotating.
In one embodiment, a second through hole is formed in the right side wall of the support, a guide rod is vertically arranged on the right side wall of the link rod turnsleeve, a pointer is arranged at the right end of the guide rod, the right end of the guide rod penetrates through the second through hole, a scale plate is arranged on the outer surface of the right side wall of the support, and the scale plate is located at the edge of the second through hole.
In one embodiment, the servomotor is an integral servomotor.
In one embodiment, the servomotor is connected with the bracket through a stud.
Compared with the prior art, the hydraulic control device of the disc valve with adjustable axial direction movement, provided by the invention, has the following advantages:
1. According to the disc valve hydraulic control device capable of moving and adjusting in the axial direction, the transmission shaft and the servomotor are connected through the left-handed nut, the connecting rod rotating sleeve and the locking bolt, the adjustment of the axial size of the transmission shaft and the servomotor is achieved, and correction of installation height errors is facilitated.
2. According to the disc valve hydraulic control device capable of moving and adjusting in the axial direction, the outer wall of the connecting rod rotating sleeve is provided with the upper groove and the lower groove which are used for limiting the position of the connecting rod rotating sleeve, and the limiting of the position of the upper end point and the position of the lower end point of the connecting rod rotating sleeve is carried out by matching with the locking bolt, so that the valve core of the valve can be locked in a fully closed state and a fully opened state correspondingly.
3. The disk valve hydraulic control device capable of moving and adjusting in the axial direction, provided by the invention, has the advantages that the servomotor is fixedly arranged on the bracket by using the stud, so that hydraulic control operation is realized, the servomotor adopts the integrated servomotor, finished products are directly purchased, the structure is simple, the size is small, field installation and test are not needed, a unit can stably run for a long time, and the economic benefit of a power station is effectively guaranteed.
4. The disc valve hydraulic control device capable of moving and adjusting in the axial direction directly reflects the axial moving numerical value of the connecting rod rotating sleeve on the scale plate through the guide rod, the pointer and the scale plate, so that an operator can visually observe the states of full-closing, full-opening and middle positions of the valve conveniently.
Drawings
FIG. 1 is a schematic diagram of a conventional disc valve pilot operated device;
fig. 2 is a schematic structural diagram of a disc valve hydraulic control device of the invention.
Detailed Description
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and the like are used in the indicated orientations and positional relationships based on the orientation shown in the drawings for convenience in describing the invention and simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be considered as limiting.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
As shown in FIG. 2, for convenience of description, the "up", "down", "left", "right", "front" and "back" orientation references in the present invention are based on the orientation shown in FIG. 2;
a hydraulic control device of a disc valve capable of moving and being adjusted in the axial direction comprises a shaft sleeve 1, a pin shaft 2, a transmission shaft 4, a bracket 6, a left-handed nut 7, a link rod rotating sleeve 8, a locking bolt 9, a locking nut 10, a servomotor 12 and a valve core 16;
The servomotor 12 is arranged above the bracket 6, a piston rod of the servomotor 12 extends downwards into the bracket 6, the lower end of the piston rod of the servomotor 12 is connected with the transmission shaft 4 through the link rod rotary sleeve 8, the transmission shaft 4 is connected with the valve spool 16 through the shaft sleeve 1 and the pin shaft 2, the left-handed nut 7 is arranged at the upper end of the transmission shaft 4 and used for locking the transmission shaft 4 and the link rod rotary sleeve 8, and the locking nut 10 is arranged at the lower end of the piston rod of the servomotor 12 and used for locking the piston rod of the servomotor 12 and the link rod rotary sleeve 8;
the inner part of the bracket 6 is provided with a positioning plate 17, the positioning plate 17 is provided with a threaded through hole which is communicated left and right, a locking bolt 9 is screwed in the threaded through hole on the positioning plate 17, the left side wall of the bracket 6 positioned on the left side of the locking bolt 9 is provided with a first through hole 18, the left end of the locking bolt 9 penetrates through the first through hole 18, the left side wall of the connecting rod turnbuckle 8 positioned on the right side of the locking bolt 9 is provided with an upper positioning groove 20 and a lower positioning groove 20, and the locking bolt 9 is matched with the positioning grooves 20 to lock the upper end point and the lower.
In the embodiment, the transmission shaft 4 and the servomotor 12 are preferably connected through the left-handed nut 7, the link rod turnbuckle 8 and the locking bolt 9, so that the adjustment of the axial size of the valve is realized, and correspondingly, mechanisms such as a telescopic joint and the like can be adopted for adjusting the axial length of the valve;
In the embodiment, preferably, the outer wall of the link rod rotating sleeve 8 is provided with an upper groove 20 and a lower groove 20 for limiting the position of the link rod rotating sleeve 8, and the upper end point and the lower end point of the link rod rotating sleeve 8 are limited by matching with the locking bolt 9, so that the full-closed and full-open states of the valve core of the valve are correspondingly locked, and correspondingly, other hydraulic or mechanical locking mechanisms can be adopted to lock the full-closed or full-open positions of the valve.
In the present embodiment, the servomotor 12 is preferably a hydraulically driven servomotor, and accordingly, the operation of the servomotor may be controlled by a driving mode such as gas control.
In this embodiment, a second through hole 19 is formed in the right side wall of the bracket 6, a guide rod 14 is vertically arranged on the right side wall of the link rod rotating sleeve 8, a pointer 15 is arranged at the right end of the guide rod 14, the right end of the guide rod 14 penetrates through the second through hole 19, a scale plate 13 is arranged on the outer surface of the right side wall of the bracket 6, and the scale plate 13 is located at the edge of the second through hole 19.
In the embodiment, the axial movement value of the connecting rod rotary sleeve 8 is preferably directly reflected on the scale plate 13 through the guide rod 14 and the pointer 15 in cooperation with the scale plate 13, so that an operator can visually observe the fully closed, fully opened and intermediate positions of the valve conveniently, and correspondingly, other automatic elements with analog signal functions can be installed to monitor the opening state of the valve.
Preferably, the servomotor 12 is an integrated servomotor, the servomotor 12 adopts the integrated servomotor, finished products are directly purchased, the structure is simple, the size is small, field installation and test are not needed, the long-term stable operation of the unit is facilitated, and the economic benefit of the power station is effectively guaranteed.
Preferably, the servomotor 12 is connected with the bracket 6 through a stud.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (4)
1. A disc valve hydraulic control device capable of moving and adjusting in the axial direction is characterized by comprising a shaft sleeve, a pin shaft, a transmission shaft, a support, a left-handed nut, a link rod rotating sleeve, a locking bolt, a locking nut, a servomotor and a valve core;
The servomotor is arranged above the bracket, a piston rod of the servomotor extends downwards into the bracket, the lower end of the piston rod of the servomotor is connected with the transmission shaft through the link rod rotary sleeve, the transmission shaft is connected with the valve core of the valve through the shaft sleeve and the pin shaft, the left-handed nut is arranged at the upper end of the transmission shaft and used for locking the transmission shaft and the link rod rotary sleeve, and the locking nut is arranged at the lower end of the piston rod of the servomotor and used for locking the piston rod and the link rod rotary sleeve of the servomotor;
the support is internally provided with a positioning plate, threaded through holes which are communicated left and right are formed in the positioning plate, a locking bolt is in threaded connection with the threaded through holes in the positioning plate and is positioned on the left side of the locking bolt, a first through hole is formed in the left side wall of the support, the left end of the locking bolt penetrates through the first through hole, an upper positioning groove and a lower positioning groove are formed in the left side wall of the connecting rod rotating sleeve on the right side of the locking bolt, and the positioning grooves are matched with the locking bolt and used for locking the positions of the upper end point and the lower end point of the connecting rod rotating.
2. The hydraulic control device for a disc valve with adjustable axial movement according to claim 1, wherein a second through hole is formed in a right side wall of the bracket, a guide rod is vertically arranged on a right side wall of the link rod rotating sleeve, a pointer is arranged at the right end of the guide rod, the right end of the guide rod penetrates through the second through hole, a scale plate is arranged on the outer surface of the right side wall of the bracket, and the scale plate is located at the edge of the second through hole.
3. The hydraulic control device for the disc valve with adjustable axial movement according to claim 1, wherein the servomotor is an integrated servomotor.
4. The hydraulic control device for the disc valve with adjustable axial movement according to any one of claims 1 to 3, wherein the servomotor is connected with the bracket through a stud.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010554343.8A CN111853332A (en) | 2020-06-17 | 2020-06-17 | Axial direction movement adjustable disc valve hydraulic control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010554343.8A CN111853332A (en) | 2020-06-17 | 2020-06-17 | Axial direction movement adjustable disc valve hydraulic control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111853332A true CN111853332A (en) | 2020-10-30 |
Family
ID=72986741
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010554343.8A Withdrawn CN111853332A (en) | 2020-06-17 | 2020-06-17 | Axial direction movement adjustable disc valve hydraulic control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111853332A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115826626A (en) * | 2023-02-20 | 2023-03-21 | 湖南云箭科技有限公司 | Method and system for controlling speed of offshore lifesaving airdrop aircraft |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101220865A (en) * | 2007-12-05 | 2008-07-16 | 施大钟 | Corniform regulating valve |
| CN202195067U (en) * | 2011-06-30 | 2012-04-18 | 哈尔滨电机厂有限责任公司 | Exhaust water pipe disc valve for overhauling of large-medium water turbine power generating unit |
| CN205859163U (en) * | 2016-07-18 | 2017-01-04 | 湖南云箭集团有限公司 | A kind of hydraulic turbine disc drainage valve |
| CN108730528A (en) * | 2018-08-28 | 2018-11-02 | 江苏华太电力仪表有限公司 | High sealing instrument block valve |
-
2020
- 2020-06-17 CN CN202010554343.8A patent/CN111853332A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101220865A (en) * | 2007-12-05 | 2008-07-16 | 施大钟 | Corniform regulating valve |
| CN202195067U (en) * | 2011-06-30 | 2012-04-18 | 哈尔滨电机厂有限责任公司 | Exhaust water pipe disc valve for overhauling of large-medium water turbine power generating unit |
| CN205859163U (en) * | 2016-07-18 | 2017-01-04 | 湖南云箭集团有限公司 | A kind of hydraulic turbine disc drainage valve |
| CN108730528A (en) * | 2018-08-28 | 2018-11-02 | 江苏华太电力仪表有限公司 | High sealing instrument block valve |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115826626A (en) * | 2023-02-20 | 2023-03-21 | 湖南云箭科技有限公司 | Method and system for controlling speed of offshore lifesaving airdrop aircraft |
| CN115826626B (en) * | 2023-02-20 | 2023-06-09 | 湖南云箭科技有限公司 | Method and system for controlling speed of maritime lifesaving air-drop aircraft |
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Application publication date: 20201030 |