Vertical measurement supporting device for steam turbine partition plate
By designing a vertical measurement support device for turbine diaphragms, the vertical placement and fixation of the diaphragms are achieved using a track assembly and a moving column, solving the deformation problem when the diaphragms are laid flat and improving measurement accuracy and efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-25
- Publication Date
- 2026-03-10
AI Technical Summary
In existing technologies, when measuring turbine diaphragms, the diaphragms are laid flat on the ground and are affected by the support method and gravity, which leads to deformation and affects the measurement accuracy.
A turbine diaphragm vertical measurement support device was designed. The diaphragm is vertically fixed by a track assembly and a moving column. Combined with electrical control and buffer guide devices, gravity deformation is reduced and measurement accuracy is improved.
It significantly reduces deformation caused by gravity, improves measurement accuracy and efficiency, and also has good versatility and operability.
Smart Images
Figure CN223981708U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a steam turbine partition plate vertical measurement support device belongs to frock technical field. BACKGROUND
[0002] Steam turbine through-flow clearance is one of the key parameters in steam turbine, because it directly influences the thermal efficiency and power output of steam turbine. The size of through-flow clearance is related to the relative position between rotor and partition plate, and is also affected by factors such as thermal expansion, thermal deformation, mechanical displacement. Therefore, the accuracy and timeliness of measuring steam turbine through-flow clearance is very important for the safe, reliable and efficient operation of steam turbine.
[0003] At present, the partition plate is mainly measured by component-level optical measurement method: this method is to use optical equipment to calculate the geometric parameters of the partition plate by measuring the position, height and spacing of the measuring points on the partition plate. Through multi-point measurement and using digital processing method, the more accurate partition plate parameters can be obtained. However, this method needs to simulate the support mode of working state to ensure the accuracy of measurement. The conventional measurement scheme places the partition plate flat on the ground. Affected by the support mode and gravity, the partition plate will produce large deformation, which affects the measurement accuracy. UTILITY MODEL CONTENT
[0004] The utility model aims at: in view of the above-mentioned problems, provide a kind of steam turbine partition plate vertical measurement support device, can simulate the state of steam turbine unit operation, fixed in the vertical state of partition plate, to complete measurement.
[0005] The technical scheme adopted by the utility model is as follows:
[0006] A steam turbine partition plate vertical measurement support device, including base, the left and right sides on the base are each equipped with track group, the track group is arranged along left and right direction;The track group on left and right sides is respectively equipped with movable column that can move along track group, the movable column is respectively equipped with the compression assembly that can be opened / closed, the opening of two groups of compression assembly is oppositely arranged;It further includes electrical control cabinet for controlling compression assembly and track group operation.
[0007] Optionally, the opposite sides of the movable column are provided with a buffer guide device, the buffer guide device includes a guide block, the inner side surface of the guide block is inclined, and the outer side of the guide block is connected with the movable column through a damping member.
[0008] Optionally, the movable column is provided with a mounting groove, the opening of the mounting groove faces the other movable column, and the damping member is arranged in the mounting groove.
[0009] Alternatively, the pressing assembly comprises a support plane arranged on the moving column and a pressing head hinged to the moving column, the rear end of the pressing head is provided with a control end, and a hydraulic cylinder is arranged between the control end and the moving column.
[0010] Alternatively, the pressing head is a T-shaped pressing head, the T-shaped section of the pressing head is parallel to the hinged rotation shaft of the pressing head, and the two branches of the T-shaped pressing head are further provided with pressing point parts.
[0011] The track group comprises a driving moving track group and a linear guide rail group, the linear guide rail group comprises two groups, the two linear guide rail groups are arranged at the two ends of the bottom of the moving column respectively, and the driving moving track group is arranged between the linear guide rail groups.
[0012] The driving moving track group comprises a rack arranged in the left-right direction, the bottom of the moving column is provided with a gear matched with the rack, and the gear is connected with a motor.
[0013] The linear guide rail group comprises a sliding rail fixed to the base, the bottom of the moving column is provided with a sliding block matched with the sliding rail, and the sliding rail is provided with an organ case.
[0014] The left and right ends of the base are provided with limit switches which can directly or indirectly contact the moving column.
[0015] The moving column is connected with a track-type drag chain used for placing electric wires.
[0016] As described above, by adopting the technical scheme, the present application has the following beneficial effects:
[0017] The steam turbine partition plate vertical placement measuring support device provided by the present application can significantly reduce the deformation caused by gravity, improve the measuring accuracy and efficiency, and has good versatility and operability. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 It is a structural schematic diagram of the present application.
[0019] Figure 2 It is Figure 1 the enlarged view of A in
[0020] Figure 3 It is Figure 1 the enlarged view of B in
[0021] Marked in the figure: 1-base, 2-moving column, 3-track group, 31-driving moving track group, 311-motor, 32-linear guide rail group, 4-pressing assembly, 41-support plane, 42-pressing head, 43-control end, 44-hydraulic cylinder, 45-pressing point part, 5-electrical control cabinet, 6-buffering and guiding device, 7-track-type drag chain. Detailed Implementation
[0022] The present invention will now be described in detail with reference to the accompanying drawings.
[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.
[0024] A vertical measuring support device for steam turbine diaphragms, such as Figures 1-3 As shown, the system includes a base 1, with rail groups 3 on both the left and right sides of the base 1, the rail groups 3 being arranged in the left-right direction; each of the left and right rail groups 3 is provided with a movable column 2 that can move along the rail group 3, and each movable column 2 is provided with a clamping component 4 that can be opened / closed, the openings of the two sets of clamping components 4 being arranged facing each other; it also includes an electrical control cabinet 5 for controlling the operation of the clamping components 4 and the rail group 3.
[0025] Specifically, the partition is placed between two movable columns 2. Track assemblies 3 are provided on both sides of the base 1, arranged in a left-right direction to ensure the movable columns 2 can move smoothly on the tracks. The movable columns 2 are mounted on the track assemblies 3 and can move along the tracks. The movable columns 2 can be adjusted in position along the tracks to accommodate partitions of different sizes, enhancing the versatility of the device. Each movable column 2 is equipped with an openable clamping assembly 4 for fixing the partition. The opening and closing design of the clamping assembly 4 simplifies the fixing and releasing process of the partition, making it easy to operate. The openings of the two sets of clamping assemblies 4 face each other, clamping the two protruding parts at the upper end of the partition to ensure that the partition is firmly clamped when placed upright. The design of the movable columns 2 and clamping assemblies 4 allows the partition to be supported and fixed at the upper end, naturally standing upright, effectively reducing deformation caused by gravity, thereby improving measurement accuracy. The control cabinet manages the operation of the clamping assembly 4 and the track assembly 3, ensuring the partition remains stable during measurement. The introduction of the electrical control cabinet 5 enables automated operation, reduces human error, and improves measurement efficiency.
[0026] Preferably, the track groups 3 are two groups respectively located on the left and right sides, with each movable column 2 located on one track group 3. Alternatively, they can be a single group, with two movable columns 2 located on the left and right sides of the same track group 3.
[0027] In another specific implementation, the movable column 2 is provided with buffer guide devices 6 on both sides facing each other. Each buffer guide device 6 includes a guide block, the inner side of which (i.e., the side facing the partition) is an inclined surface. The outer side of the guide block is connected to the movable column 2 via a damping element. When the partition falls, it first contacts the upper inclined surface of the guide block, generating a damping effect between the guide block and the damping element. The partition gradually descends along the inclined surface, reducing the impact load caused by the partition's fall and greatly improving the accuracy of partition measurement. Furthermore, there can be more than one buffer guide device 6 on a single movable column 2. When there are two or more buffer guide devices 6, they are distributed vertically, with the lower buffer guide device 6 protruding beyond the upper buffer guide device 6 to accommodate the outer circumferential curvature of the partition.
[0028] In another specific embodiment, the movable column 2 is provided with a mounting groove, the opening of which faces another movable column 2, and the damping element is disposed within the mounting groove. This can reduce the degree to which the damping element protrudes from the movable column 2 while ensuring the length and damping effect of the damping element, and can also allow the guide block to retract into the movable column 2 when the distance between the partition and the movable column 2 is small.
[0029] In another specific embodiment, the clamping assembly 4 includes a support plane 41 disposed on the movable column 2 and a pressure head 42 hinged to the movable column 2. The rear end of the pressure head 42 has a control end 43, and a hydraulic cylinder 44 is also provided between the control end 43 and the movable column 2. The support plane 41 ensures that the partition has a stable contact surface when it is placed upright. The hinge axis of the pressure head 42 faces the front-back direction. The hydraulic cylinder 44 is connected between the control end 43 of the pressure head 42 and the movable column 2. By hydraulically driving the opening and closing of the pressure head 42, the pressure head 42 is rotated around the hinge point, cooperating with the support plane 41 to achieve the clamping and releasing of the partition. Preferably, the support plane 41 is a pad or block disposed on the movable column 2, but the movable column 2 can also provide the support plane 41.
[0030] In another specific embodiment, the pressure head 42 is a T-shaped pressure head 42, the T-shaped cross-section of which is parallel to the hinge axis of the pressure head 42. The two ends of the T-shape of the pressure head 42 are also provided with pressure points 45. The upper lateral extension of the T-shaped pressure head 42 increases its working length, and the two pressure points contact the upper surfaces of the upper protrusions of the partition plate. The pressure points 45 are bolts that allow for adjustment of the pressure point height to increase adaptability.
[0031] In another specific implementation, the track assembly 3 includes a drive rail assembly 31 and a linear guide rail assembly 32. The linear guide rail assembly 32 comprises two sets, each located at one end of the bottom of the moving column 2. The drive rail assembly 31 is positioned between the linear guide rail assemblies 32. The use of the drive rail assembly 31 enables automatic movement of the moving column 2, improving operational efficiency. The linear guide rail assembly 32 ensures precise and stable horizontal movement of the moving column 2.
[0032] In another specific implementation, the drive rail assembly 31 includes a rack arranged in the left-right direction, and a gear that meshes with the rack is provided at the bottom of the moving column 2. The gear is connected to a motor 311. The motor 311 can precisely control the rotation of the gear, ensuring that the moving column 2 moves evenly on the track, thereby precisely controlling the moving distance and speed of the moving column 2. Compared with other complex drive systems, the combination of the motor 311 and the gear is simpler to maintain and easier to replace parts.
[0033] Furthermore, the hydraulic cylinder 44 is connected to a hydraulic control assembly, which is protected by a protective cover. The motor 311 is also protected by a motor cover. These features protect the hydraulic control assembly and the motor 311 from external environmental influences, extending their service life.
[0034] In another specific embodiment, the linear guide rail assembly 32 includes a slide rail fixed to the base 1, and a slider at the bottom of the movable column 2, the slider engaging with the slide rail; the slide rail is equipped with an accordion cover. The design of the slider-slide rail engagement results in low friction, allowing the movable column 2 to move more smoothly on the rail. The accordion cover, in conjunction with the movement of the slider, provides a telescopic effect, effectively preventing dust and foreign objects from entering between the slide rail and the slider, reducing wear and contamination.
[0035] In another specific implementation, the left and right ends of the base 1 are provided with limit switches that can directly or indirectly contact the movable column 2. The limit switches can limit the movement range of the movable column 2 on the track, prevent the movable column 2 from exceeding the predetermined track range, and avoid equipment damage or measurement errors.
[0036] In another specific embodiment, the movable column 2 is connected to a tracked cable carrier 7 for placing electrical wires. This effectively protects the wires and cables on the movable column 2 from damage due to friction, stretching, or external physical damage during movement. The tracked cable carrier 7 can bend as the movable column 2 moves, providing greater flexibility for the movement of the electrical wires.
[0037] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. The present utility model extends to any new features or combinations disclosed in this specification, and any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model. It is obvious to those skilled in the art that the present utility model is not limited to the details of the above exemplary embodiments, and that detailed technical features not disclosed in this embodiment, such as specific structures and connection methods, can be obtained by those skilled in the art from the prior art; the present disclosure does not specifically limit these aspects.
[0038] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.
[0039] In this embodiment of the invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature include the first feature being directly above or diagonally above the second feature, or simply indicating that the first feature is at a higher horizontal level than the second feature.
[0040] In the description of the embodiments of this utility model, it should be understood that the terms "length", "width", "vertical", "horizontal", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model.
Claims
1. A support device for turbine diaphragm stand measurement, characterized by: The base is provided with track groups on the left and right sides, and the track groups are arranged along the left-right direction; the track groups on the left and right sides are respectively provided with movable columns which can move along the track groups, and the movable columns are respectively provided with openable / closable compression assemblies, and the openings of the two compression assemblies are oppositely arranged; the base is further provided with an electrical control cabinet for controlling the operation of the compression assemblies and the track groups.
2. The turbine diaphragm stand-off measurement support device of claim 1, wherein: The opposite sides of the movable column are provided with buffer guiding devices, and the buffer guiding devices include guiding blocks, the inner side surface of the guiding block is a slope, and the outer side of the guiding block is connected with the movable column through a damping member.
3. The turbine diaphragm stand-off measurement support device of claim 2, wherein: The movable column is provided with a mounting groove, the opening of the mounting groove faces the other movable column, and the damping member is arranged in the mounting groove.
4. The turbine diaphragm stand-off measurement support device of claim 1, wherein: The compression assembly includes a support plane arranged on the movable column and a pressing head hinged to the movable column, the rear end of the pressing head is provided with a control end, and a hydraulic cylinder is further arranged between the control end and the movable column.
5. The turbine diaphragm stand-off measurement support device of claim 4, wherein: The pressing head is a T-shaped pressing head, the T-shaped cross section of the pressing head is parallel to the hinge shaft of the pressing head, and the two branch ends of the T-shaped pressing head are further provided with pressing point parts.
6. The turbine diaphragm stand-off measurement support device of claim 1, wherein: The track group includes a driving track group and a linear guide rail group, the linear guide rail group includes two groups, the two linear guide rail groups are respectively arranged at the two ends of the bottom of the movable column, and the driving track group is arranged between the linear guide rail groups.
7. The turbine diaphragm stand-off measurement support device of claim 6, wherein: The driving track group includes a rack arranged along the left-right direction, the bottom of the movable column is provided with a gear matched with the rack, and the gear is connected with a motor.
8. The turbine diaphragm stand-off measurement support device of claim 6, wherein: The linear guide rail group includes a slide rail fixed to the base, the bottom of the movable column is provided with a sliding block matched with the slide rail, and the slide rail is provided with an organ case.
9. The turbine diaphragm stand-off measurement support device of claim 1, wherein: The left and right ends of the base are provided with limit switches which can directly or indirectly contact with the movable column.
10. The turbine diaphragm stand-off measurement support device of claim 1, wherein: The movable column is connected with a caterpillar type drag chain for placing electric wires.