CN120141309A - Valve core opening detection device, oil motor assembly and steam turbine - Google Patents
Valve core opening detection device, oil motor assembly and steam turbine Download PDFInfo
- Publication number
- CN120141309A CN120141309A CN202510130434.1A CN202510130434A CN120141309A CN 120141309 A CN120141309 A CN 120141309A CN 202510130434 A CN202510130434 A CN 202510130434A CN 120141309 A CN120141309 A CN 120141309A
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- Prior art keywords
- valve
- sleeve
- detection device
- extension piece
- opening detection
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D17/00—Regulating or controlling by varying flow
- F01D17/10—Final actuators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D17/00—Regulating or controlling by varying flow
- F01D17/20—Devices dealing with sensing elements or final actuators or transmitting means between them, e.g. power-assisted
- F01D17/22—Devices dealing with sensing elements or final actuators or transmitting means between them, e.g. power-assisted the operation or power assistance being predominantly non-mechanical
- F01D17/26—Devices dealing with sensing elements or final actuators or transmitting means between them, e.g. power-assisted the operation or power assistance being predominantly non-mechanical fluid, e.g. hydraulic
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D21/00—Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for
- F01D21/003—Arrangements for testing or measuring
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Indication Of The Valve Opening Or Closing Status (AREA)
Abstract
本公开涉及一种阀芯开度检测装置、油动机总成及汽轮机，该阀芯开度检测装置用于汽轮机的油动机的调节阀，其包括直线位移传感器和延长件，直线位移传感器用于安装于油动机，直线位移传感器具有沿竖直方向延伸的反馈杆，延长件沿竖直方向延伸，延长件的第一端与反馈杆相连，延长件的第二端用于与连接于调节阀的阀杆的阀杆行程固定支架相连，其中，延长件构造为能够在阀杆行程固定支架移动时，传递阀杆行程固定支架在竖直方向上的位移，并且能够在阀杆行程固定支架的移动方向与竖直方向呈角度时发生弯曲。上述方案有效避免了受高温影响，直线位移传感器无法正常使用的情况发生。此外，有效避免了反馈杆受到倾斜的作用力，导致反馈杆断裂的情况发生。
The present disclosure relates to a valve core opening detection device, an oil motor assembly and a steam turbine. The valve core opening detection device is used for a regulating valve of an oil motor of a steam turbine, and includes a linear displacement sensor and an extension piece. The linear displacement sensor is used to be installed on the oil motor. The linear displacement sensor has a feedback rod extending in a vertical direction. The extension piece extends in a vertical direction. The first end of the extension piece is connected to the feedback rod. The second end of the extension piece is used to be connected to a valve stem stroke fixing bracket connected to a valve stem of the regulating valve, wherein the extension piece is constructed to be able to transmit the displacement of the valve stem stroke fixing bracket in the vertical direction when the valve stem stroke fixing bracket moves, and can bend when the moving direction of the valve stem stroke fixing bracket is at an angle to the vertical direction. The above scheme effectively avoids the situation where the linear displacement sensor cannot be used normally due to the influence of high temperature. In addition, it effectively avoids the situation where the feedback rod is subjected to the tilting force, resulting in the feedback rod being broken.
Description
Technical Field
The disclosure relates to the technical field of valve element opening detection of a regulating valve of an oil motor, in particular to a valve element opening detection device, an oil motor assembly and a steam turbine.
Background
The engine of the steam turbine is an actuating mechanism for adjusting the steam valve, which converts the secondary oil signal input by an amplifier or an electrohydraulic converter into a stroke output with enough function to operate the adjusting valve and control the steam turbine to enter steam, thereby adjusting the rotating speed and the symbol load of the steam turbine unit, and the engine is an important component of the steam turbine unit of the thermal power plant.
In the related art, a linear displacement sensor (for example, an LVDT, i.e., a linear variable differential transformer) is generally provided at a valve of a regulator valve of a motor to detect an opening degree of the motor regulator valve of the motor. On the one hand, because the feedback rod of the linear displacement sensor is usually connected with the valve rod through the valve rod stroke fixing support, the distance between the feedback rod and the high-temperature valve is relatively short, and the valve with relatively high temperature can influence the resistance characteristic of the sleeve coil of the linear displacement sensor, on the other hand, if the valve rod stroke fixing support and/or the valve rod deviate in the use process, the feedback rod is subject to inclined acting force and is easy to break.
Disclosure of Invention
The disclosure aims to provide a valve element opening detection device, a hydraulic motor assembly and a steam turbine, so as to solve the technical problems in the related art.
According to a first aspect of the present disclosure, there is provided a valve element opening degree detection device for a regulating valve of an oil mover of a steam turbine, including:
the linear displacement sensor is used for being mounted on the oil motor and provided with a feedback rod extending along the vertical direction;
an extension member extending in the vertical direction, a first end of the extension member being connected to the feedback rod, a second end of the extension member being adapted to be connected to a stem travel bracket of a stem coupled to the regulator valve;
Wherein the extension member is configured to be capable of transmitting displacement of the valve stem stroke fixing bracket in the vertical direction when the valve stem stroke fixing bracket is moved, and to be bent when the moving direction of the valve stem stroke fixing bracket makes an angle with the vertical direction.
Optionally, the valve element opening detection device further comprises a first sleeve and a first nut, the feedback rod penetrates through the first sleeve and is in threaded connection with the first sleeve, the first nut is in threaded connection with the feedback rod and abuts against one end, close to the linear displacement sensor, of the first sleeve, and the first end of the extension piece is connected with the first sleeve.
Optionally, the first end of the extension piece is penetrated through the first sleeve, and the first sleeve is in pressure connection with the first end of the extension piece.
Optionally, the valve element opening detection device further comprises a fixing bolt, a second nut and a third nut, wherein the second end of the extension piece is connected with the first end of the fixing bolt, and the second end of the fixing bolt is used for penetrating through a mounting hole on the valve rod stroke fixing bracket;
The second nut and the third nut are in threaded connection with the fixing bolt and are respectively arranged on two sides of the valve rod stroke fixing support, and the second nut and the third nut can jointly clamp the valve rod stroke fixing support.
Optionally, the valve element opening detection device further comprises a second sleeve and a fourth nut, the first end of the fixing bolt penetrates through the second sleeve and is in threaded connection with the second sleeve, the fourth nut is in threaded connection with the fixing bolt and abuts against one end, close to the valve rod stroke fixing support, of the second sleeve, and the second end of the extension piece is connected with the second sleeve.
Optionally, the second end of the extension piece is penetrated through the second sleeve, and the second sleeve is in pressure connection with the second end of the extension piece.
Optionally, the extension is configured as a metallic flexible shaft.
Optionally, the length of the extension is 100mm-200mm.
According to a second aspect of the present disclosure there is provided a prime mover assembly comprising a prime mover and a valve spool opening detection apparatus as described above, the prime mover comprising a regulator valve and a valve stem travel fixed bracket connected to a valve stem of the regulator valve, a second end of an extension of the valve spool opening detection apparatus being connected to the valve stem travel fixed bracket.
According to a third aspect of the present disclosure there is provided a steam turbine comprising a prime mover assembly as described above.
Through the technical scheme, as the extension direction of the feedback rod in the extension piece is the same as that of the linear displacement sensor, the first end of the extension piece is connected with the feedback rod, the second end of the extension piece is connected with the valve rod travel fixing support connected with the valve rod of the regulating valve, and the extension piece is configured to be capable of transmitting the displacement of the valve rod fixing support in the vertical direction, in other words, the linear displacement sensor can be connected with the valve rod travel fixing support through the extension piece, the distance between the feedback rod and the valve with higher temperature is far, the distance between the valve with higher temperature and the feedback rod and other parts on the linear displacement sensor is far, the heat of the valve is not easy to be transmitted to the linear displacement sensor, the situation that the linear displacement sensor is affected by high temperature and cannot be normally used is effectively avoided.
For example, when the linear displacement sensor is an LVDT sensor (i.e., a linear variable differential transformer), the sleeve coil of the LVDT sensor is not susceptible to high temperatures.
In addition, because extension piece structure takes place to warp when valve rod stroke fixed bolster's direction of movement and vertical direction are the angle, even like this, in the use, valve rod stroke fixed bolster and/or valve rod self take place the skew, the effort of acting on the extension piece along the incline direction can make the extension piece crooked, and not directly act on the feedback pole obliquely, has effectively avoided the feedback pole to receive the effort of slope, leads to the cracked condition emergence of feedback pole, has improved the life of feedback pole effectively.
Additional features and advantages of the present disclosure will be set forth in the detailed description which follows.
Drawings
The accompanying drawings are included to provide a further understanding of the disclosure, and are incorporated in and constitute a part of this specification, illustrate the disclosure and together with the description serve to explain, but do not limit the disclosure. In the drawings:
Fig. 1 is a schematic front view of a valve element opening degree detection device according to an exemplary embodiment of the present disclosure mounted on an oil motor.
Fig. 2 is an enlarged view of a in fig. 1.
Fig. 3 is an enlarged view of B in fig. 1.
Description of the reference numerals
1-Linear displacement sensor, 11-feedback rod, 2-extension piece, 3-first sleeve, 4-first nut, 5-fixing bolt, 6-second nut, 7-third nut, 8-second sleeve, 9-fourth nut, 20-oil motor and 21-valve rod stroke fixing bracket.
Detailed Description
Specific embodiments of the present disclosure are described in detail below with reference to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating and illustrating the disclosure, are not intended to limit the disclosure.
In the present disclosure, it is to be understood that the use of directional terms such as "upper, lower," and "vertical direction" etc. are defined in the direction of the drawing figures, are merely for convenience in describing the present disclosure and simplifying the description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, as well as a specific orientation configuration and operation, and thus should not be construed as limiting the present disclosure. The term "inner and outer" refers to the inner and outer of the corresponding structural profile. In addition, it should be noted that terms such as "first", "second", etc. are used to distinguish one element from another element, and do not have order or importance. In addition, in the description with reference to the drawings, the same reference numerals in different drawings denote the same elements.
In the description of the present disclosure, it should also be noted that, unless explicitly stated and limited otherwise, the terms "disposed," "connected," and "mounted" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, or may be directly connected or indirectly connected via an intermediate medium. The specific meaning of the terms in this disclosure will be understood by those of ordinary skill in the art as the case may be.
As shown in fig. 1 to 3, according to a first aspect of the present disclosure, there is provided a valve element opening detection device for a regulating valve of a hydraulic motor 20 of a steam turbine, including a linear displacement sensor 1 and an extension member 2, the linear displacement sensor 1 being for being mounted to the hydraulic motor 20, the linear displacement sensor 1 having a feedback rod 11 extending in a vertical direction, the extension member 2 extending in the vertical direction, a first end of the extension member 2 being connected to the feedback rod 11, a second end of the extension member 2 being for being connected to a valve stem stroke fixing bracket 21 connected to a valve stem of the regulating valve, wherein the extension member 2 is configured to be capable of transmitting displacement of the valve stem stroke fixing bracket 21 in the vertical direction when the valve stem stroke fixing bracket 21 moves, and to be bent when the moving direction of the valve stem stroke fixing bracket 21 makes an angle with the vertical direction.
When the valve element opening detection device is applied to the regulating valve of the steam turbine engine 20, the linear displacement sensor 1 can be installed on the shell of the steam turbine engine 20, for example, the feedback rod 11 of the linear displacement sensor 1 is connected with the valve rod stroke fixing bracket 21 connected with the valve rod of the regulating valve through the extension piece 2, so that when the opening of the regulating valve is changed, the valve rod stroke fixing bracket 21 can move under the action of the valve rod to drive the extension piece 2 and the feedback rod 11 to move, and the linear displacement sensor 1 can detect the moving distance of the valve rod of the regulating valve by detecting the moving distance of the feedback rod 11, thereby detecting the change of the valve element opening of the regulating valve.
Here, the specific type of the linear displacement sensor 1 is not limited in the present disclosure, and the linear displacement sensor 1 may be any linear displacement sensor 1 suitable for measuring the change in the opening degree of the servomotor 20, for example, the linear displacement sensor 1 may be an LVDT (linear variable differential transformer), and the linear displacement sensor 1 may be an optoelectronic linear displacement sensor 1.
Through the technical scheme, as the extension directions of the feedback rod 11 in the extension piece 2 and the linear displacement sensor 1 are the same, the first end of the extension piece 2 is connected with the feedback rod 11, the second end of the extension piece 2 is connected with the valve rod travel fixing support 21 connected with the valve rod of the regulating valve, and the extension piece 2 is configured to be capable of transmitting the displacement of the valve rod fixing support in the vertical direction, in other words, the linear displacement sensor 1 can be connected with the valve rod travel fixing support 21 through the extension piece 2, the distance between the feedback rod 11 and a valve with higher temperature is far, the distance between the valve with higher temperature and the feedback rod 11 and other parts on the linear displacement sensor 1 is far, the heat of the valve is not easy to be transmitted to the linear displacement sensor 1, and the situation that the linear displacement sensor 1 cannot be normally used due to the influence of high temperature on the linear displacement sensor 1 is effectively avoided.
For example, when the linear displacement sensor 1 is an LVDT sensor, a sleeve coil of the LVDT sensor is not easily affected by high temperature.
In addition, because the extension piece 2 is bent when the moving direction of the valve rod stroke fixing bracket 21 is angled to the vertical direction, even if the valve rod stroke fixing bracket 21 and/or the valve rod are offset in the moving process in the use process, the acting force acting on the extension piece 2 along the inclined direction can lead the extension piece 2 to be bent instead of directly acting on the feedback rod 11 in an inclined manner, thereby effectively avoiding the situation that the feedback rod 11 is broken due to the inclined acting force, and effectively prolonging the service life of the feedback rod 11.
The specific connection manner of the feedback rod 11 of the linear displacement sensor 1 and the extension member 2 is not limited in the present disclosure, for example, the feedback rod 11 and the extension member 2 may be fixedly connected (e.g., welded) or detachably connected.
As an embodiment provided in the present disclosure, as shown in fig. 1 and 2, the valve element opening detecting device further includes a first sleeve 3 and a first nut 4, the feedback rod 11 is threaded through the first sleeve 3 and is connected with the first sleeve 3, the first nut 4 is threaded with the feedback rod 11 and abuts against one end of the first sleeve 3, which is close to the linear displacement sensor 1, and the first end of the extension member 2 is connected with the first sleeve 3. In other words, the feedback rod 11 is connected with the extension piece 2 through the first sleeve 3, the connection between the feedback rod 11 and the extension piece 2 is reliable, and the feedback rod 11 and the extension piece 2 are not easy to loosen. Furthermore, the feedback rod 11 is detachably connected to the first sleeve 3, and the extension member 2 of different length can be replaced according to the actual distance between the valve stem stroke fixing bracket 21 and the feedback rod 11.
In addition, because above-mentioned case aperture detection device still includes first nut 4, first nut 4 and feedback pole 11 threaded connection and support the one end that is close to linear displacement sensor 1 at first sleeve 3, first nut 4 can play the locking effect to first sleeve 3, has effectively avoided threaded connection's feedback pole 11 and first sleeve 3 not hard up, and the position change of first sleeve 3 on feedback pole 11 leads to the valve rod travel distance that linear displacement sensor 1 measured to take place with the different condition of valve rod actual travel distance.
The connection relationship between the extension member 2 and the first sleeve 3 is not limited in the present disclosure, as long as the connection between the extension member 2 and the first sleeve 3 is reliable, for example, the extension member 2 and the first sleeve 3 may be fixedly connected (e.g., welded) or detachably connected, etc.
As an embodiment provided in the present disclosure, the first end of the extension piece 2 is inserted into the first sleeve 3, and the first sleeve 3 is crimped to the first end of the extension piece 2, that is, after the first end of the extension piece 2 is inserted into the first sleeve 3, the first sleeve 3 is flattened by an external force, so that the first sleeve 3 is in interference fit with the extension piece 2, and the first sleeve 3 is crimped to the first end of the extension piece 2. The first sleeve 3 and the extension piece 2 which are connected in a crimping way are reliably connected, the installation is simple and convenient, and the assembly efficiency of the valve element opening indicating device is improved.
The connection relationship between the extension member 2 and the stem travel fixing bracket 21 is not limited in this disclosure, and for example, the extension member 2 may be welded to the stem travel fixing bracket 21 or detachably connected to the stem travel fixing bracket 21 by a fastener.
As an embodiment provided by the present disclosure, as shown in fig. 1 and 3, the valve element opening detection device further includes a fixing bolt 5, a second nut 6 and a third nut 7, the second end of the extension member 2 is connected to the first end of the fixing bolt 5, the second end of the fixing bolt 5 is used for penetrating through a mounting hole on the valve stem stroke fixing bracket 21, the second nut 6 and the third nut 7 are in threaded connection with the fixing bolt 5 and are respectively disposed on two sides of the valve stem stroke fixing bracket 21, and the second nut 6 and the third nut 7 can jointly clamp the valve stem stroke fixing bracket 21. The second nut 6 and the third nut 7 can jointly play a limiting role on the fixing bolt 5 connected with the extension piece 2, so that the situation that the fixing bolt 5 moves in the vertical direction and the valve rod moving distance measured by the linear displacement sensor 1 is different from the actual valve rod moving distance is effectively avoided.
The specific connection relationship between the extension member 2 and the fixing bolt 5 is not limited in the present disclosure, as long as the connection between the extension member 2 and the fixing bolt 5 is reliable, for example, the extension member 2 may be welded to the fixing bolt 5.
As an embodiment provided in the present disclosure, as shown in fig. 1 and 3, the valve element opening detection device further includes a second sleeve 8 and a fourth nut 9, the first end of the fixing bolt 5 is threaded through the second sleeve 8 and is connected with the second sleeve 8, the fourth nut 9 is threaded with the fixing bolt 5 and abuts against one end of the second sleeve 8 near the valve rod stroke fixing support 21, and the second end of the extension member 2 is connected with the second sleeve 8.
In other words, the extension piece 2 is connected with the fixing bolt 5 through the second sleeve 8, the connection between the extension piece 2 and the fixing bolt 5 is reliable, and no relative movement is generated between the extension piece 2 and the fixing bolt 5. And, the extension piece 2 is detachably connected with the fixing bolt 5, so that the extension piece 2 can be replaced conveniently.
In addition, because above-mentioned case aperture detection device still includes fourth nut 9, fourth nut 9 and fixing bolt 5 threaded connection and support and push up in the one side that second sleeve 8 is close to valve rod stroke fixed bolster 21, fourth nut 9 can play locking effect to second sleeve 8, has effectively avoided threaded connection's fixing bolt 5 and second sleeve 8 not hard up, and the second sleeve 8 changes in the position on fixing bolt 5, leads to the valve rod displacement distance that linear displacement sensor 1 measured to take place with the different condition of valve rod actual displacement distance.
Here, it should be noted that the specific connection relationship between the extension member 2 and the second sleeve 8 is not limited in the present disclosure, as long as the connection between the extension member 2 and the second sleeve 8 is reliable, for example, the extension member 2 may be welded to the second sleeve 8.
As an embodiment provided in the present disclosure, the second end of the extension member 2 is inserted into the second sleeve 8, and the second sleeve 8 is crimped to the second end of the extension member 2, that is, after the second end of the extension member 2 is inserted into the second sleeve 8, the second sleeve 8 is flattened by an external force, so that the second sleeve 8 is in interference fit with the extension member 2, and the second sleeve 8 is crimped to the second end of the extension member 2. The second sleeve 8 connected by crimping is reliably connected with the extension piece 2, and the installation is simple and convenient, thereby being beneficial to improving the assembly efficiency of the valve element opening indicating device.
The present disclosure is not limited to the specific type of the extension member 2, and as an embodiment of the present disclosure, the extension member 2 may be configured as a metal flexible shaft. The length of the metal flexible shaft in the axial direction of the metal flexible shaft cannot be changed, but can deform along the radial direction of the metal flexible shaft, so that the use requirement that the displacement of the valve rod stroke fixing support 21 in the vertical direction is transmitted when the valve rod stroke fixing support 21 moves and the metal flexible shaft is bent when the moving direction of the valve rod stroke fixing support 21 is in an angle with the vertical direction can be met.
As other embodiments of the present disclosure, the extension member 2 may be formed as a universal flexible shaft having a plurality of shaft bodies capable of rotating with each other, so that the use requirement of transmitting displacement of the valve stem stroke fixing bracket 21 in the vertical direction when the valve stem stroke fixing bracket 21 moves and bending when the moving direction of the valve stem stroke fixing bracket 21 is at an angle to the vertical direction can be satisfied.
The length of the extension member 2 is not limited in the present disclosure, and as an embodiment of the present disclosure, the length of the extension member 2 is 100mm to 200mm. The extension piece 2 with the length larger than 100mm can effectively increase the distance between the feedback rod 11 of the linear displacement sensor 1 and the valve with higher temperature, so that the condition that the valve with higher temperature affects the normal use of the linear displacement sensor 1 is avoided. The extension piece 2 with the length smaller than 200mm can also have certain rigidity, so that the extension piece 2 is prevented from bending when the valve rod and the valve rod stroke fixing support 21 normally move along the vertical direction, and the displacement measured by the linear displacement sensor 1 and the actual movement distance of the valve rod are different.
According to a second aspect of the present disclosure, there is provided a motor assembly including a motor 20 and a valve spool opening degree detection device as described above, the motor 20 including a regulator valve and a valve stem stroke fixing bracket 21 connected to a valve stem of the regulator valve, a second end of an extension member 2 of the valve spool opening degree detection device being connected to the valve stem stroke fixing bracket 21.
The valve body opening degree detecting means mounted on the motor 20 can measure the actual moving distance of the valve rod through the valve rod stroke fixing bracket 21, thereby measuring the valve body opening degree of the regulator valve of the motor 20.
The oil motor assembly has all the beneficial effects of the valve element opening detection device, and the description is omitted here.
The number of the valve element opening degree detecting devices used in the above-mentioned engine 20 is not limited in the present disclosure, and optionally, as shown in fig. 1, the number of the valve element opening degree detecting devices is two, and the two valve element opening degree detecting devices are respectively disposed at two sides of the valve rod stroke fixing bracket 21 of the engine 20. The two valve core opening degree detection devices respectively arranged at two sides of the valve rod stroke fixing support 21 can simultaneously measure the displacement of the valve rod stroke fixing support 21, and the accuracy of detecting the opening degree of the oil motor 20 is effectively improved.
According to a third aspect of the present disclosure there is provided a steam turbine comprising a prime mover assembly as described above.
The steam turbine has all the beneficial effects of the valve element opening detection device or the oil motor assembly, and the description is omitted here.
The preferred embodiments of the present disclosure have been described in detail above with reference to the accompanying drawings, but the present disclosure is not limited to the specific details of the embodiments described above, and various simple modifications may be made to the technical solutions of the present disclosure within the scope of the technical concept of the present disclosure, and all the simple modifications belong to the protection scope of the present disclosure.
In addition, the specific features described in the foregoing embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, the present disclosure does not further describe various possible combinations.
Moreover, any combination between the various embodiments of the present disclosure is possible as long as it does not depart from the spirit of the present disclosure, which should also be construed as the disclosure of the present disclosure.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202510130434.1A CN120141309A (en) | 2025-02-05 | 2025-02-05 | Valve core opening detection device, oil motor assembly and steam turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202510130434.1A CN120141309A (en) | 2025-02-05 | 2025-02-05 | Valve core opening detection device, oil motor assembly and steam turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN120141309A true CN120141309A (en) | 2025-06-13 |
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ID=95960190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202510130434.1A Pending CN120141309A (en) | 2025-02-05 | 2025-02-05 | Valve core opening detection device, oil motor assembly and steam turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN120141309A (en) |
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2025
- 2025-02-05 CN CN202510130434.1A patent/CN120141309A/en active Pending
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