Steam pipeline purging target plate fixing device
By designing a target plate fixing device with double-ended fixation in the steam pipeline, combined with a buffer rubber block and spring structure, the vibration problem caused by unstable target plate installation was solved, achieving stable target plate installation and accurate judgment of purging effect, thus avoiding economic losses.
Patent Information
- Application Number
- CN202521123837.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-04
- Publication Date
- 2026-05-12
- Estimated Expiration
- 2035-06-04
AI Technical Summary
The existing steam pipeline purging target plate is unstable in installation, which leads to increased vibration, affects the judgment of purging effect, and may also cause the target plate to break, resulting in economic losses.
A steam pipeline purging target plate fixing device was designed. The target plate is stably installed by fixing the target plate at both ends of the mounting sleeve and the target frame, combined with the buffer structure of buffer rubber block and spring, and the connection stability and sealing performance are improved by fixing rod and sealing gasket.
This improved the installation stability of the target plate, reduced vibration, ensured the accuracy of the purging effect, reduced the risk of target plate breakage, and guaranteed the normal operation of the steam unit.
Smart Images

Figure CN224222242U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of purging target plate equipment, specifically a steam pipeline purging target plate fixing device. Background Technology
[0002] During the piping process of a steam engine, unavoidable impurities such as rust and welding slag will remain inside the pipes. If these impurities are carried into the high-speed rotating steam turbine, the steam unit will shut down due to excessive vibration, and in more serious cases, it will directly damage the steam engine rotor, or even require the replacement of the entire turbine unit, resulting in significant economic losses. Therefore, before commissioning a steam unit, the inside of the pipes must be purged with steam to ensure normal operation. The purging effect is based on the results of target plate trace detection. The target plate is a metal plate made according to the material and dimensions specified in this standard and is used to inspect the quality standards of the blowdown.
[0003] The target plate is mounted on the target frame. The fixing device only fixes one end of the target frame, while the other end is embedded in the groove. During purging, huge pressure and steam flow are generated. When the target plate is purged, it will cause the target plate to vibrate, which increases the possibility of the target plate breaking during purging and affects the judgment of the purging effect. Utility Model Content
[0004] In order to overcome the problem of unstable target plate installation in the existing technology, which affects the judgment of the structure, this utility model provides a steam pipeline purging target plate fixing device.
[0005] The technical solution adopted by this utility model to solve its technical problem is: a steam pipeline purging target plate fixing device, including an installation sleeve, a target frame is fixedly installed inside the installation sleeve, a target plate is fixedly installed on the side of the target frame, an upper fixing rod is installed through the installation sleeve and the target frame, a lower fixing rod is installed through the other end of the target frame, a buffer rubber block is sleeved on the outside of the target frame, a through groove is opened inside the buffer rubber block, and a plurality of second springs are fixedly installed inside the through groove.
[0006] In the aforementioned steam pipeline purging target plate fixing device, an upper connecting ring is fixedly connected to the side of the mounting sleeve, a pipeline is fixedly connected to the lower end of the upper connecting ring, a lower connecting ring is fixedly connected to the lower end of the pipeline, and the target frame passes through the interior of the pipeline.
[0007] In the aforementioned steam pipeline purging target plate fixing device, a connecting plate is fixedly installed on the side of both the mounting sleeve and the upper connecting ring, and a fixing plate is fixedly installed on the upper end of the mounting sleeve.
[0008] In the aforementioned steam pipeline purging target plate fixing device, a fixing block is embedded inside the lower connecting ring, the target frame is fixedly connected to the fixing block, and a lower fixing rod is installed through the target frame and the fixing block.
[0009] In the aforementioned steam pipeline purging target plate fixing device, sealing gaskets are fitted on the outside of both the upper and lower fixing rods, and first springs are symmetrically installed on the outside of both the upper and lower fixing rods.
[0010] In the aforementioned steam pipeline purging target plate fixing device, the buffer rubber block has a connecting groove inside, and the target frame passes through the connecting groove and is symmetrically installed on the outside of the target frame.
[0011] This utility model provides a steam pipeline purging target plate fixing device, which has the following beneficial effects:
[0012] This invention features a target plate fixing device. The target frame is fixed at both ends. During installation, the target plate is fixed onto the target frame, and then the target frame passes through the inside of the mounting sleeve and the inside of the pipe. Both ends of the target frame are connected to sleeves, and a fixing rod is used to secure them. The fixing rod passes through the inside of the target frame, and bolts are used to stabilize the target frame. During use, the target plate vibrates due to the airflow. Therefore, a buffer rubber block is fitted onto the outside of the target frame, fitting snugly against the inside of the sleeve. Multiple through slots are formed inside the sleeve, and multiple springs are installed inside these slots to buffer the vibrations. Springs are also fitted onto the outside of the fixing rod to reduce the up-and-down swaying of the target frame, increasing the stability of the target plate during use and allowing for better judgment of the purging effect. Attached Figure Description
[0013] Figure 1 A three-dimensional structural diagram of a utility model steam pipeline purging target plate fixing device;
[0014] Figure 2 A cross-sectional structural schematic diagram of a utility model steam pipeline purging target plate fixing device;
[0015] Figure 3 A three-dimensional structural diagram of the target frame for a steam pipeline purging target plate fixing device of a utility model.
[0016] Figure 4 A three-dimensional structural diagram of the buffer rubber block for the steam pipeline purging target plate fixing device of the utility model.
[0017] In the diagram: 1. Pipe; 2. Upper connecting ring; 3. Lower connecting ring; 4. Connecting plate; 5. Mounting sleeve; 6. Fixing plate; 7. Upper fixing rod; 8. Buffer block; 9. Target plate; 10. Fixing block; 11. Lower fixing rod; 12. Target frame; 13. Sealing gasket; 14. First spring; 15. Connecting groove; 16. Through groove; 17. Second spring. Detailed Implementation
[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0019] Please see Figure 1-4 This utility model provides a solution: a steam pipeline purging target plate fixing device, including an installation sleeve 5 for fixing a target frame 12. The target frame 12 is fixedly installed inside the installation sleeve 5, and a target plate 9 is fixedly installed on the side of the target frame 12. The target plate 9 is fixedly installed on the side of the target frame 12 by bolts. An upper fixing rod 7 is installed through the installation sleeve 5 and the target frame 12. The upper fixing rod 7 passes through the installation sleeve 5 and the inside of the target frame 12. Both ends of the upper fixing rod 7 are threaded columns. After the through installation, it is tightened by bolts. During installation, the first spring 14 is first inserted into the inside of the installation sleeve 5 and then sleeved on the outside of the upper fixing rod 7. Then, the first spring 14 is inserted through the target frame 12 and then sleeved on the outside of the upper fixing rod 7, so that the first spring 14 is symmetrically installed on the upper fixing rod. Externally, the upper fixing rod 7 has threaded columns at both ends. The upper fixing rod 7 is installed through the bolts and the threaded columns to stably connect the target frame 12 to the mounting sleeve 5. The other end of the target frame 12 is installed through the lower fixing rod 11. The target frame 12 passes through the inside of the pipe 1 and is fixedly connected to the fixing block 10 at the other end, so that the target frame 12 is stably installed inside the pipe 1. A buffer rubber block 8 is fitted on the outside of the target frame 12. The buffer rubber block 8 has the same internal size as the upper connecting ring 2. The buffer rubber block 8 is quadrilateral in shape, which can reduce the shaking of the target frame 12 during use. The buffer rubber block 8 has a through groove 16 inside. Multiple second springs 17 are fixedly installed inside the through groove 16. The second springs 17 absorb the vibration generated by the target frame 12.
[0020] In this embodiment, an upper connecting ring 2 is fixedly connected to the side of the mounting sleeve 5, and a pipe 1 is fixedly connected to the lower end of the upper connecting ring 2. A lower connecting ring 3 is fixedly connected to the lower end of the pipe 1, which facilitates the installation of the target frame 12 and the target plate 9. The target frame 12 passes through the inside of the pipe 1 for better purging operation. A connecting plate 4 is fixedly installed on the side of both the mounting sleeve 5 and the upper connecting ring 2 to facilitate fastening and increase stability during connection. A fixing plate 6 is fixedly installed at the upper end of the mounting sleeve 5 for protection and to increase stability during purging operation. A fixing block 10 is embedded inside the lower connecting ring 3 to increase the stability of the target frame 12. The double-end fixed installation increases the stability of the target frame 12 during use and reduces vibration. The target frame 12 is fixedly connected to the fixing block 10, and a lower fixing rod 11 is installed through the target frame 12 and the fixing block 10 for easy installation, disassembly and replacement.
[0021] In this embodiment, sealing gaskets 13 are fitted on the outside of both the upper fixing rod 7 and the lower fixing rod 11 to increase the internal sealing during purging and improve the detection effect. First springs 14 are symmetrically installed on the outside of both the upper fixing rod 7 and the lower fixing rod 11 to reduce the up-and-down shaking of the target frame 12 during purging. A connecting groove 15 is opened inside the buffer rubber block 8, and the target frame 12 passes through the inside of the connecting groove 15 and is symmetrically installed on the outside of the target frame 12 to absorb the vibration of the target frame 12 and increase the stability of the target frame 12 in use.
[0022] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A steam pipeline purging target plate fixing device, including an installation sleeve (5), characterized in that: The mounting sleeve (5) is fixedly installed with a target frame (12) inside. The target frame (12) is fixedly installed with a target plate (9) on its side. An upper fixing rod (7) is installed through the mounting sleeve (5) and the target frame (12). A lower fixing rod (11) is installed through the other end of the target frame (12). A buffer rubber block (8) is sleeved on the outside of the target frame (12). A through groove (16) is opened inside the buffer rubber block (8). A plurality of second springs (17) are fixedly installed inside the through groove (16).
2. The steam pipeline purging target plate fixing device according to claim 1, characterized in that: The side of the mounting sleeve (5) is fixedly connected to an upper connecting ring (2), the lower end of the upper connecting ring (2) is fixedly connected to a pipe (1), the lower end of the pipe (1) is fixedly connected to a lower connecting ring (3), and the target frame (12) passes through the inside of the pipe (1).
3. The steam pipeline purging target plate fixing device according to claim 2, characterized in that: The mounting sleeve (5) and the upper connecting ring (2) are both fixedly mounted with connecting plates (4), and the upper end of the mounting sleeve (5) is fixedly mounted with a fixing plate (6).
4. The steam pipeline purging target plate fixing device according to claim 2, characterized in that: A fixing block (10) is embedded inside the lower connecting ring (3). The target frame (12) is fixedly connected to the fixing block (10). A lower fixing rod (11) is installed through the target frame (12) and the fixing block (10).
5. The steam pipeline purging target plate fixing device according to claim 1, characterized in that: Both the upper fixing rod (7) and the lower fixing rod (11) are fitted with sealing gaskets (13), and both the upper fixing rod (7) and the lower fixing rod (11) are symmetrically fitted with first springs (14).
6. The steam pipeline purging target plate fixing device according to claim 1, characterized in that: The buffer block (8) has a connecting groove (15) inside, and the target frame (12) passes through the inside of the connecting groove (15) and is symmetrically installed on the outside of the target frame (12).
