Blowing damage prevention device for included angle of heating surface of low-temperature reheater
By designing an anti-blow-loss device for the angle of the heating surface of the low-temperature reheater that includes a guard plate, a connecting block, a semicircular groove and a return spring, the problem of blow-damage at the angle of the low-temperature reheater is solved, and full protection of the pipeline is achieved. Cover protection and easy installation.
Patent Information
- Application Number
- CN202421003172.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-10
- Publication Date
- 2025-01-21
- Estimated Expiration
- 2034-05-10
AI Technical Summary
The angles of the horizontal pipe and suspension pipe of the low-temperature reheater are easily blown to damage, and existing protective measures have difficulties and incomplete problems in installation and protection effects.
A low-temperature reheater heating surface angle anti-blow damage device is designed, which includes a first guard plate, a connecting frame, a second guard plate, a connecting block, a semicircular groove, a semicircular block, an extension rod, a circular plate and a return spring. The cooperation of these components achieves full coverage and protection of the angular channels of the pipeline, and reduces blow damage by changing the air flow flushing.
It achieves full coverage and protection of the angular channel on the heating surface of the low-temperature reheater pipe, reduces the occurrence of blow damage, and improves the stability and convenience of protection.
Smart Images
Figure CN222378075U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of anti-blow damage devices, and more specifically, to an anti-blow damage device for the angle of a heating surface of a low-temperature reheater. Background Art
[0002] A reheater is a steam superheater that reheats low-pressure steam that has done work to a certain temperature. It has two main functions: one is to reduce the humidity of water vapor, which is beneficial to protecting the turbine blades; the other is to improve the relative internal efficiency and absolute internal efficiency of the turbine.
[0003] In the actual use of the low-temperature reheater, the angle between the horizontal tube and the suspended tube is easily damaged by the soot blower, which requires frequent tube replacement. The existing anti-blow damage protection measure is mainly to add protective tiles directly on the angle. However, during the installation of the protective tiles, the installation becomes difficult due to the small space. In addition, there is a mismatch between the protective tiles and the pipeline, and there are dead corners, so the protection is not comprehensive. As a result, signs of blow damage are still found at the angle of the pipeline during actual inspection, so improvements are needed. Utility Model Content
[0004] In order to overcome the deficiencies of the prior art, the utility model provides a low-temperature reheater heating surface angle blow-off prevention device, which has the advantage of protecting the low-temperature reheater heating surface angle.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a low-temperature reheater heating surface angle blow-off prevention device, comprising a first guard plate, a connecting frame is fixedly installed on the left side of the front end of the first guard plate, the left end of the first guard plate is movably connected to the second guard plate, a connecting block is fixedly installed on the right side of the front end of the second guard plate, the right side of the outer surface of the connecting block and the inner surface of the connecting frame are movably connected, a semicircular groove is provided on the right side of the top of the connecting block, a semicircular block is movably connected inside the semicircular groove, an extension rod is fixedly installed on the top of the semicircular block, the top of the extension rod passes through the connecting frame and extends to the outside of the connecting frame and is fixedly connected with a circular plate, a reset spring is fixedly installed on the bottom end of the circular plate, and the other end of the reset spring is fixedly connected to the top of the connecting frame.
[0006] As a preferred technical solution of the utility model, fixing rods are fixedly installed on the left and right sides of the front end of the first guard plate and the second guard plate, and the front end of the outer surface of the fixing rod is fixedly sleeved with a first baffle. The number of the fixing rods and the first baffles are eight and the shapes and sizes are the same.
[0007] As a preferred technical solution of the utility model, the outer surfaces of the eight fixed rods are respectively movably connected with a first rotating rod and a second rotating rod located on the right side of the first rotating rod, the number of the first rotating rods and the second rotating rods are four each, and the outer surfaces of the four first rotating rods and the second rotating rods are movably connected to the outer surface of the first baffle.
[0008] As a preferred technical solution of the utility model, connecting springs are fixedly installed on the bottom ends of the right ends of the four first rotating rods, and the number of the connecting springs is four. The other ends of the four connecting springs are fixedly connected to the bottom ends of the left ends of the four second rotating rods, and straight grooves are opened inside the top ends of the four first rotating rods and the second rotating rods.
[0009] As a preferred technical solution of the utility model, the inner surface of the straight slot is movably sleeved with a connecting rod, the front end of the outer surface of the connecting rod is fixedly sleeved with a second baffle, the number of the connecting rods and the second baffles are eight and the shapes and sizes are the same, and the outer surfaces of the eight second baffles are movably connected to the outer surfaces of the four first rotating rods and the second rotating rods respectively.
[0010] As a preferred technical solution of the utility model, fixed blocks are fixedly installed on the left and right sides of the top of the first guard plate and the second guard plate respectively, and a long groove is opened inside the fixed block, and the inner surface of the long groove is movably connected with the outer surface of the connecting rod.
[0011] As a preferred technical solution of the utility model, the rear ends of the eight connecting rods are respectively fixedly installed with a first clamping block located behind the first rotating rod and a second clamping block located behind the second rotating rod, the right end of the first clamping block and the left end of the second clamping block are movably connected, and the number of the first clamping block and the second clamping block are four each and the shapes and sizes are the same.
[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:
[0013] 1. The utility model provides a first guard plate, a connecting frame, a second guard plate, a connecting block and a semicircular block. When the second guard plate is pulled, the connecting block will move together, so that the semicircular groove pushes the semicircular block to move up with the extension rod and the circular plate and stretch the reset spring. Under the restoring action of the reset spring, the circular plate will be forced to return to its original position. With the mutual cooperation of the semicircular groove, the semicircular block and the reset spring, the first guard plate and the second guard plate can be quickly disassembled and connected, thereby achieving full coverage protection of the angle channel of the heating surface of the pipeline. At the same time, the L-shaped design of the first guard plate and the second guard plate can effectively reduce the blowing loss at the angle by changing the airflow scouring.
[0014] 2. The utility model provides a first rotating rod, a second rotating rod, a connecting spring, a first clamping block and a second clamping block. When the first clamping block and the second clamping block move in opposite directions, the connecting rod will move together, so that the connecting rod generates a thrust on the straight slot, pushing the first rotating rod and the second rotating rod to rotate in the opposite direction with the fixed rod as the axis and compressing the connecting spring. Under the restoring action of the connecting spring, the first rotating rod and the second rotating rod will be forced to return to their original positions, so that the first clamping block and the second clamping block clamp the pipe, thereby realizing the rapid fixation of the anti-blow damage device. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a schematic diagram of the structure of the utility model;
[0016] Figure 2 It is a schematic diagram of the cross-sectional structure of the front side of the utility model;
[0017] Figure 3 It is a schematic cross-sectional view of the extension rod of the utility model;
[0018] Figure 4 for Figure 2 A schematic diagram of the local enlarged structure at point A in the middle;
[0019] Figure 5 for Figure 2 A schematic diagram of the local enlarged structure at B in the middle;
[0020] Figure 6 for Figure 3 Schematic diagram of the local enlarged structure at point C in the middle.
[0021] In the figure: 1. first guard plate; 2. connecting frame; 3. second guard plate; 4. connecting block; 5. semicircular groove; 6. semicircular block; 7. extension rod; 8. round plate; 9. return spring; 10. fixing rod; 11. first baffle; 12. first rotating rod; 13. second rotating rod; 14. connecting spring; 15. straight notch; 16. connecting rod; 17. second baffle; 18. fixing block; 19. long groove; 20. first clamping block; 21. second clamping block. DETAILED DESCRIPTION
[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0023] like Figures 1 to 6As shown, the utility model provides a low-temperature reheater heating surface angle blow-off prevention device, comprising a first guard plate 1, a connecting frame 2 is fixedly installed on the left side of the front end of the first guard plate 1, a second guard plate 3 is movably connected to the left end of the first guard plate 1, a connecting block 4 is fixedly installed on the right side of the front end of the second guard plate 3, the right side of the outer surface of the connecting block 4 and the inner surface of the connecting frame 2 are movably sleeved, a semicircular groove 5 is opened on the right side of the top of the connecting block 4, a semicircular block 6 is movably sleeved inside the semicircular groove 5, an extension rod 7 is fixedly installed on the top of the semicircular block 6, the top of the extension rod 7 passes through the connecting frame 2 and extends to the outside of the connecting frame 2 and is fixedly sleeved with a circular plate 8, a reset spring 9 is fixedly installed on the bottom end of the circular plate 8, and the other end of the reset spring 9 is fixedly connected to the top of the connecting frame 2.
[0024] When the second guard plate 3 is pulled, the second guard plate 3 will move to the left with the connecting block 4. At this time, as the connecting block 4 moves, the inner surface of the semicircular groove 5 will generate a thrust on the outer surface of the semicircular block 6, pushing the semicircular block 6 to move upward with the extension rod 7 and the circular plate 8 and stretching the reset spring 9. With the mutual cooperation of the semicircular groove 5, the semicircular block 6 and the reset spring 9, the first guard plate 1 and the second guard plate 3 can be quickly disassembled and connected, thereby improving the stability and convenience of the connection between the first guard plate 1 and the second guard plate 3. The connection and assembly of the first guard plate 1 and the second guard plate 3 realizes full coverage protection of the angle channel of the pipeline, and the L-shaped design of the first guard plate 1 and the second guard plate 3 can reduce blowing loss by changing the airflow scouring.
[0025] Among them, fixing rods 10 are fixedly installed on the left and right sides of the front end of the first guard plate 1 and the second guard plate 3 respectively, and the front end of the outer surface of the fixing rod 10 is fixedly sleeved with a first baffle 11. The number of fixing rods 10 and the first baffle 11 are both eight and the shape and size are the same.
[0026] The fixing rod 10 and the first baffle plate 11 provide support and fixation.
[0027] Among them, the outer surfaces of the eight fixed rods 10 are respectively movably connected with the first rotating rod 12 and the second rotating rod 13 located on the right side of the first rotating rod 12. The number of the first rotating rod 12 and the second rotating rod 13 are four each, and the outer surfaces of the four first rotating rods 12 and the second rotating rods 13 are all movably connected to the outer surface of the first baffle 11.
[0028] When the first rotating rod 12 and the second rotating rod 13 are pushed, they will rotate in opposite directions with the fixed rod 10 as the axis.
[0029] Among them, connecting springs 14 are fixedly installed on the bottom ends of the right ends of the four first rotating rods 12, and the number of connecting springs 14 is four. The other ends of the four connecting springs 14 are fixedly connected to the bottom ends of the left ends of the four second rotating rods 13, and straight slots 15 are opened inside the top ends of the four first rotating rods 12 and the second rotating rods 13.
[0030] Due to the existence of the connecting spring 14, the first rotating rod 12 and the second rotating rod 13 will return to their original positions after rotating.
[0031] Among them, the inner surface of the straight slot 15 is movably sleeved with a connecting rod 16, and the front end of the outer surface of the connecting rod 16 is fixedly sleeved with a second baffle 17. The number of connecting rods 16 and second baffles 17 are both eight and the shape and size are the same. The outer surfaces of the eight second baffles 17 are movably connected to the outer surfaces of the four first rotating rods 12 and the second rotating rods 13 respectively.
[0032] When the connecting rod 16 moves, the outer surface of the connecting rod 16 will generate a thrust on the inner surface of the straight slot 15, pushing the first rotating rod 12 and the second rotating rod 13 to rotate in opposite directions.
[0033] Among them, fixed blocks 18 are fixedly installed on the left and right sides of the top of the first guard plate 1 and the second guard plate 3 respectively. A long groove 19 is opened inside the fixed block 18, and the inner surface of the long groove 19 is movably connected to the outer surface of the connecting rod 16.
[0034] The existence of the fixing block 18 and the long slot 19 will limit the movement of the connecting rod 16 .
[0035] Among them, the rear ends of the eight connecting rods 16 are respectively fixedly installed with a first clamping block 20 located behind the first rotating rod 12 and a second clamping block 21 located behind the second rotating rod 13. The right end of the first clamping block 20 and the left end of the second clamping block 21 are movably connected. The number of the first clamping block 20 and the second clamping block 21 are both four and the shape and size are the same.
[0036] The first clamping block 20 and the second clamping block 21 cooperate with each other to fix the positions of the first guard plate 1 and the second guard plate 3 .
[0037] The working principle and use process of this utility model:
[0038] First, when the operator connects and assembles the first guard plate 1 and the second guard plate 3, the operator aligns the connecting block 4 with the connecting frame 2 and inserts it into the interior of the connecting frame 2. At this time, the semicircular block 6 will be squeezed and move upward along the inner surface of the connecting frame 2 with the extension rod 7 and the circular plate 8 and stretch the reset spring 9. When the semicircular block 6 and the semicircular groove 5 are aligned, the semicircular block 6 will return to its original position under the restoring action of the reset spring 9, so that the semicircular block 6 is embedded in the semicircular groove 5. In this way, the connection and assembly of the first guard plate 1 and the second guard plate 3 can be realized, thereby achieving full coverage protection of the angle channel of the heating surface of the low-temperature reheater pipeline. At the same time, the L-shaped design of the first guard plate 1 and the second guard plate 3 can also change the airflow scouring, thereby effectively reducing blowing loss.
[0039] Then the operator aligns the gap between the first clamp block 20 and the first clamp block 20 with the pipeline and pushes it toward the pipeline. Since the rear sides of the first clamp block 20 and the second clamp block 21 are inclined surfaces, the first clamp block 20 and the second clamp block 21 will move in opposite directions as the operator pushes. At this time, the connecting rod 16 will move together, so that the outer surface of the connecting rod 16 generates a thrust against the inner surface of the straight groove 15, pushing the first rotating rod 12 and the second rotating rod 13 to rotate in the opposite direction while compressing the connecting spring 14. When the pipeline is stuck in the arc-shaped notch on the outer surface of the first clamp block 20 and the second clamp block 21, the first rotating rod 12 and the second rotating rod 13 will return to their original positions under the restoring action of the connecting spring 14, so that the first clamp block 20 and the second clamp block 21 clamp the pipeline, thereby realizing the rapid fixed installation of the anti-blow damage device, thereby improving the convenience of installing the anti-blow damage device.
[0040] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.
[0041] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A low-temperature reheater heating surface angle blow-off prevention device, comprising a first guard plate (1), characterized in that: A connecting frame (2) is fixedly installed on the left side of the front end of the first guard plate (1), and a second guard plate (3) is movably connected to the left end of the first guard plate (1). A connecting block (4) is fixedly installed on the right side of the front end of the second guard plate (3). The right side of the outer surface of the connecting block (4) is movably sleeved with the inner surface of the connecting frame (2). A semicircular groove (5) is provided on the right side of the top end of the connecting block (4). A semicircular block (6) is movably sleeved inside the semicircular groove (5). An extension rod (7) is fixedly installed on the top end of the semicircular block (6). The top end of the extension rod (7) passes through the connecting frame (2) and extends to the outside of the connecting frame (2) and is fixedly sleeved with a circular plate (8). A reset spring (9) is fixedly installed on the bottom end of the circular plate (8). The other end of the reset spring (9) is fixedly connected to the top end of the connecting frame (2).
2. A low-temperature reheater heating surface angle blow-off prevention device according to claim 1, characterized in that: Fixed rods (10) are fixedly mounted on the left and right sides of the front ends of the first guard plate (1) and the second guard plate (3), respectively; the front ends of the outer surfaces of the fixed rods (10) are fixedly sleeved with first baffles (11); the number of the fixed rods (10) and the first baffles (11) are both eight and the shapes and sizes are the same.
3. A low-temperature reheater heating surface angle blow-off prevention device according to claim 2, characterized in that: The outer surfaces of the eight fixed rods (10) are respectively movably connected with a first rotating rod (12) and a second rotating rod (13) located on the right side of the first rotating rod (12), and the number of the first rotating rod (12) and the second rotating rod (13) is four, and the outer surfaces of the four first rotating rods (12) and the four second rotating rods (13) are movably connected to the outer surface of the first baffle (11).
4. A low-temperature reheater heating surface angle blow-off prevention device according to claim 3, characterized in that: A connecting spring (14) is fixedly installed at the bottom of the right end of each of the four first rotating rods (12), and the number of the connecting springs (14) is four. The other ends of the four connecting springs (14) are fixedly connected to the bottom of the left end of each of the four second rotating rods (13), and straight notches (15) are provided inside the top ends of the four first rotating rods (12) and the second rotating rods (13).
5. A low-temperature reheater heating surface angle blow-off prevention device according to claim 4, characterized in that: The inner surface of the straight slot (15) is movably sleeved with a connecting rod (16), and the front end of the outer surface of the connecting rod (16) is fixedly sleeved with a second baffle (17). The number of the connecting rods (16) and the second baffles (17) are both eight and the shapes and sizes are the same. The outer surfaces of the eight second baffles (17) are movably connected to the outer surfaces of the four first rotating rods (12) and the second rotating rods (13), respectively.
6. A low-temperature reheater heating surface angle blow-off prevention device according to claim 1, characterized in that: A fixing block (18) is fixedly installed on the left and right sides of the top of the first guard plate (1) and the second guard plate (3), respectively. A long groove (19) is provided inside the fixing block (18), and the inner surface of the long groove (19) is movably connected to the outer surface of the connecting rod (16).
7. A low-temperature reheater heating surface angle blow-off prevention device according to claim 5, characterized in that: A first clamping block (20) located behind the first rotating rod (12) and a second clamping block (21) located behind the second rotating rod (13) are respectively fixedly mounted at the rear ends of the eight connecting rods (16); the right end of the first clamping block (20) and the left end of the second clamping block (21) are movably connected; the number of the first clamping blocks (20) and the number of the second clamping blocks (21) are both four and the shapes and sizes are the same.