Monitoring device, purging unit and boiler
By setting up a reinforced structure on the waveguide tube and cleaning the fly ash with the purge unit, the problem of unstable connection of the boiler monitoring device is solved, and stable monitoring and extended service life are achieved.
Patent Information
- Application Number
- CN202421567908.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-03
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-07-03
AI Technical Summary
The connection between the existing boiler monitoring device and the boiler is unstable, which affects the normal use of the monitoring device, especially in boiler vibration and harsh environments.
A reinforcement structure is installed on the waveguide tube to connect it to the outer wall of the boiler body, add connection points, and clean the waveguide tube with a purge unit to ensure connection stability and monitoring efficiency.
It improves the connection stability of the monitoring device and the boiler, ensures the normal operation of the acoustic sensor, reduces the impact of fly ash accumulation, and extends the service life.
Smart Images
Figure CN223154459U_ABST
Abstract
Description
Technical Field
[0001] The present disclosure relates to the technical field of boiler detection, and specifically, to a monitoring device, a purging unit, and a boiler. Background Art
[0002] The four tubes of the boiler in a thermal power plant (including superheater tubes, economizer tubes, reheater tubes, and water wall tubes) are important components of the boiler. They almost bear all the heat of the boiler. The working environment of the four tubes is relatively harsh and leakage is likely to occur. Based on this, it is necessary to monitor the leakage of the four tubes to prevent leakage or deal with it in a timely manner when leakage occurs, so as to avoid affecting the normal operation of the thermal power plant.
[0003] Currently, for the monitoring of the four tubes, acoustic wave sensors are mostly used to detect the acoustic waves inside the four tubes to monitor whether the four tubes leak. However, since the boiler vibrates during operation and the environment where the monitoring device is located is relatively harsh, over time, the stability of the connection between the monitoring device and the boiler will be poor, affecting the normal use of the monitoring device. Summary of the Utility Model
[0004] The purpose of the present disclosure is to provide a monitoring device, a purging unit, and a boiler to ensure the stability of the connection between the monitoring device and the boiler, thereby at least partially solving the above technical problems.
[0005] To achieve the above purpose, in the first aspect of the present disclosure, a monitoring device is provided, including: a waveguide tube for connecting to the boiler body; an acoustic wave sensor connected to the waveguide tube for detecting acoustic waves inside the boiler body; and a strengthening structure provided on the waveguide tube and capable of connecting to the outer wall of the boiler body.
[0006] Optionally, the waveguide tube extends obliquely upward away from the boiler body, and the strengthening structure extends obliquely upward from the waveguide tube to the side of the boiler body, so that one end of the strengthening structure is connected to the waveguide tube and the other end can be connected to the boiler body.
[0007] Optionally, the waveguide tube includes a first waveguide tube and a second waveguide tube. The first waveguide tube is used to connect to the boiler body, and one end of the second waveguide tube is connected to the purging unit and the other end is detachably connected to the first waveguide tube.
[0008] Optionally, the strengthening structure is provided on the first waveguide tube or the second waveguide tube; the acoustic wave sensor is provided on the second waveguide tube and is located at one end of the second waveguide tube close to the first waveguide tube.
[0009] Optionally, a plurality of the strengthening structures are provided, and the plurality of strengthening structures are arranged on the waveguide tube at intervals along the circumferential direction or the axial direction of the waveguide tube.
[0010] Optionally, the strengthening structure is configured as a reinforcing rib.
[0011] In a second aspect of the present disclosure, a purging unit is provided, including: a purging main pipe; a plurality of purging branch pipes, the intake ports of the plurality of purging branch pipes are all communicated with the outlet port of the purging main pipe; and the above-mentioned monitoring device, at least one of the monitoring devices is arranged on each purging branch pipe, and the waveguide tube is communicated with the purging branch pipe.
[0012] Optionally, the purging branch pipe includes a main pipe and a branch pipe, the main pipe is communicated with the purging main pipe and communicated with at least one branch pipe, and at least one of the monitoring devices is arranged on the branch pipe.
[0013] Optionally, a solenoid valve is arranged on the purging main pipe or the main pipe, and the solenoid valve is signal-connected to a time control switch.
[0014] In a third aspect of the present disclosure, a boiler is provided, including a boiler body and the above-mentioned monitoring device, and / or the above-mentioned purging unit.
[0015] Through the above technical solution, the monitoring device of the present disclosure increases the connection points between the monitoring device and the boiler by arranging a strengthening structure on the waveguide tube, thereby ensuring the stability of the connection between the waveguide tube and the boiler body and ensuring the normal use of the monitoring device.
[0016] Other features and advantages of the present disclosure will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] The drawings are used to provide a further understanding of the present disclosure, and constitute a part of the specification. Together with the following specific implementation, they are used to explain the present disclosure, but do not constitute a limitation to the present disclosure. In the drawings:
[0018] Figure 1 is a schematic structural diagram of the monitoring device provided by an embodiment of the present disclosure;
[0019] Figure 2 is a top view of the first waveguide tube and the strengthening structure of the monitoring device provided by an embodiment of the present disclosure;
[0020] Figure 3 is a schematic structural diagram of the purging unit provided by an embodiment of the present disclosure.
[0021] DESCRIPTION OF THE REFERENCE NUMERALS
[0022] 1 - Waveguide; 11 - First waveguide; 12 - Second waveguide; 2 - Acoustic wave sensor; 3 - Reinforcing structure; 4 - Purge main pipe; 5 - Purge branch pipe; 51 - Main pipe; 52 - Branch pipe; 6 - Solenoid valve; 7 - Boiler body. Detailed implementation manners
[0023] The following will describe in detail the specific implementation manners of the present disclosure with reference to the accompanying drawings. It should be understood that the specific implementation manners described herein are only for explaining and illustrating the present disclosure, and are not used to limit the present disclosure.
[0024] In the present disclosure, unless otherwise stated, the orientation terms such as "upper" and "lower" generally refer to "upper" and "lower" relative to each other in the gravity direction when the corresponding components are in use. Specifically, reference may be made to Figure 1 the drawing direction of, and "inner" and "outer" refer to "inner" and "outer" relative to the contour of the corresponding component itself. In addition, the terms "first", "second", etc. used in the present disclosure are for distinguishing one element from another element, and do not have sequence and importance. In addition, in the following description, when referring to the accompanying drawings, unless otherwise explained, the same reference numerals in different drawings represent the same or similar elements. The above definitions are only for explaining and illustrating the present disclosure, and should not be construed as a limitation to the present disclosure.
[0025] The following will describe the monitoring device and the purge unit in the exemplary embodiments of the present disclosure with reference to the accompanying drawings.
[0026] Referring to Figures 1 to 3 as shown, in a first aspect of the present disclosure, a monitoring device is provided, including a waveguide 1, an acoustic wave sensor 2, and a reinforcing structure 3. Among them, the waveguide 1 is used to connect to the boiler body 7, that is, at least one of the four pipes (superheater pipe, economizer pipe, reheater pipe, and water wall pipe) in the boiler body 7 can be connected to the waveguide 1, so that the waveguide 1 can collect the acoustic waves in the four pipes; the acoustic wave sensor 2 is connected to the waveguide 1 and is used to detect the acoustic waves in the boiler body 7; the reinforcing structure 3 is disposed on the waveguide 1 and can be connected to the outer wall of the boiler body 7. After the waveguide 1 is connected to the four pipes of the boiler body 7, the reinforcing structure 3 thereon can also be connected to the boiler body 7, so as to increase the connection points between the monitoring device and the boiler body 7. When the boiler body 7 vibrates or the external environment impacts the waveguide 1, the waveguide 1 can still be stably connected to the boiler body 7, so that the acoustic wave sensor 2 located on the waveguide 1 can also work stably, ensuring the monitoring efficiency. Based on this, the reinforcing structure 3 of the present disclosure can ensure the stability of the connection between the waveguide 1 and the boiler body 7, ensuring that the monitoring device can be used normally.
[0027] In some implementation manners of the present disclosure, such as Figure 1As shown, the waveguide 1 extends obliquely upward away from the boiler body 7, and the strengthening structure 3 extends obliquely upward from the waveguide 1 to one side of the boiler body 7, so that one end of the strengthening structure 3 is connected to the waveguide 1 and the other end can be connected to the boiler body 7. The upward oblique extension of the waveguide 1 can minimize the accumulation of fly ash in the boiler body 7 on the waveguide 1, thereby extending the service life of the waveguide 1 to a certain extent. On this basis, the strengthening structure 3 extends obliquely upward from the waveguide 1, that is, the connection position of the strengthening structure 3 and the boiler body 7 is above the connection position of the waveguide 1 and the boiler body 7. In this way, the strengthening structure 3 can be located between the waveguide 1 and the boiler body 7, thereby reducing the space occupied by the strengthening structure 3, enabling the strengthening structure 3 to facilitate the installation of the monitoring device by the staff and saving the production cost of the monitoring device while ensuring the improvement of the stability between the waveguide 1 and the boiler body 7.
[0028] Of course, in some embodiments not shown, the strengthening structure 3 can also extend obliquely downward from the waveguide 1 to one side of the boiler body 7, that is, the connection position of the strengthening structure 3 and the boiler body 7 can be below the connection position of the waveguide 1 and the boiler body 7. The present disclosure does not limit this.
[0029] In some embodiments, as Figure 1 shown, the waveguide 1 includes a first waveguide 11 and a second waveguide 12. The first waveguide 11 is used to connect to the boiler body 7. One end of the second waveguide 12 is connected to the purging unit, and the other end is detachably connected to the first waveguide. That is, the waveguide 1 is provided in a split type. The split design can facilitate the installation of the waveguide 1 and when there is some fly ash in the waveguide 1 that is difficult to be removed by the purging device, the staff can start cleaning the inside of the waveguide 1 from the connection between the first waveguide 11 and the second waveguide 12, so as to timely remove the fly ash and ensure that the waveguide 1 can accurately transmit the sound wave to the acoustic wave sensor 2. In addition, when the waveguide 1 or the strengthening structure 3 on the waveguide 1 and the acoustic wave sensor 2 need to be replaced or repaired, the staff can also choose to remove the corresponding waveguide 1 according to the situation at that time, avoiding the need to disassemble the entire monitoring device.
[0030] Specifically, the first waveguide 11 and the second waveguide 12 can be connected by a flange to ensure the stability after their connection.
[0031] In some embodiments of the present disclosure, as Figure 1 and Figure 2As shown in the figure, the strengthening structure 3 is arranged in the first waveguide 11 or the second waveguide 12; the acoustic wave sensor 2 is arranged in the second waveguide 12 and is located at one end of the second waveguide 12 close to the first waveguide 11. That is, the strengthening structure 3 can be arranged in one of the first waveguide 11 and the second waveguide 12, and the staff can select it according to the on-site working environment in a timely manner. The setting position of the acoustic wave sensor 2 is close to the connection between the first waveguide 11 and the second waveguide 12, so that when there is a lot of fly ash in the waveguide 1 and the purging device cannot completely remove the fly ash, the staff can quickly and efficiently remove the fly ash near the acoustic wave sensor 2 from the connection between the first waveguide 11 and the second waveguide 12 to ensure the normal operation of the acoustic wave sensor 2.
[0032] Of course, as Figure 2 shown, multiple strengthening structures 3 can be provided. The multiple strengthening structures 3 can be arranged at intervals along the circumferential or axial direction of the waveguide 1. The arrangement of the multiple strengthening structures 3 can further improve the connection stability between the monitoring device and the boiler body 7.
[0033] Specifically, as Figure 1 and Figure 2 shown, the strengthening structure 3 can be configured as a reinforcing rib. The reinforcing rib can be integrally formed with the waveguide 1 and connected to the boiler body 7 through fasteners such as screws or bolts. Alternatively, the reinforcing rib can also be connected to the boiler body 7 by welding.
[0034] As Figure 3 shown, in the second aspect of the present disclosure, a purging unit is provided, including a purging main pipe 4, purging branch pipes 5 and the above-mentioned monitoring device. Among them, multiple purging branch pipes 5 are provided. The air inlets of the multiple purging branch pipes 5 are all communicated with the air outlet of the purging main pipe 4. At least one monitoring device is arranged on each purging branch pipe 5, and the waveguide 1 is communicated with the purging branch pipe 5. When the inside of the waveguide 1 is blocked due to fly ash accumulation or the normal use of the acoustic wave sensor 2 is affected, the compressed air in the purging main pipe 4 will enter the purging branch pipe 5 so that the compressed air can enter the waveguide 1 of the monitoring device through the purging branch pipe 5, thereby purging the fly ash in the waveguide 1 and ensuring the normal operation of the monitoring device.
[0035] In some embodiments of the present disclosure, as Figure 3 shown, the purging branch pipe 5 includes a main pipe 51 and branch pipes 52. The main pipe 51 is communicated with the purging main pipe 4 and is communicated with at least one branch pipe 52, and at least one monitoring device is arranged on the branch pipe 52. This can enable the purging unit to purge more monitoring devices and improve the utilization rate of the purging unit.
[0036] In some embodiments, as Figure 3As shown, a solenoid valve 6 is provided on the purging main pipe 4 or the main pipe 51, and the solenoid valve 6 is signal-connected to the time control switch. The solenoid valve 6 can control the purging main pipe 4 and the main pipe 51 to timely open and close the purging main pipe 4 and the main pipe 51, so as to avoid that when the purging unit is working, in addition to purging the waveguide 1 with more fly ash, it also purges the waveguide 1 that does not need to be cleaned, reducing the waste of resources; in addition, this can also avoid the situation that the purging main pipe 4 purges too many monitoring devices at the same time, resulting in insufficient purging pressure and unable to completely blow out the blocked fly ash from the waveguide 1, ensuring the normal operation of the purging unit; and the time control switch can regularly open and close the solenoid valve 6, that is, set the purging time in advance, so that the purging unit can regularly purge the waveguide 1, reducing or even avoiding the situation that the waveguide 1 is blocked or the staff needs to regularly check the waveguide 1; of course, the solenoid valve 6 can also be replaced by a manual valve, that is, the opening and closing of the purging main pipe 4 or the solenoid valve 6 is manually controlled.
[0037] In a third aspect of the present disclosure, a boiler is provided, which includes a boiler body 7 and the above-mentioned monitoring device, and / or includes the above-mentioned purging unit.
[0038] In summary, the present disclosure exemplarily shows the use process of the monitoring device and the purging unit.
[0039] After the waveguide tube 1 of the monitoring device is connected to the four tubes of the boiler body 7, the acoustic wave sensor 2 can determine whether there is a leakage in the four tubes according to the acoustic waves in the four tubes. Since the reinforcing ribs on the first waveguide tube 11 are connected to the boiler body 7, the connection points between the overall monitoring device and the boiler body 7 are increased. When the boiler body 7 vibrates or the external environment impacts the waveguide tube 1, the waveguide tube 1 can still be firmly connected to the boiler body 7, so that the acoustic wave sensor 2 located on the waveguide tube 1 can also work stably, ensuring the monitoring efficiency. Based on this, the strengthening structure 3 of the present disclosure can ensure the stability of the connection between the waveguide tube 1 and the boiler body 7, ensuring that the monitoring device can be used normally. After the monitoring device has been used for a long time, some fly ash will accumulate in the first waveguide tube 11 and the second waveguide tube 12, thus affecting the monitoring results of the acoustic wave sensor 2 and the normal use of the monitoring device. At this time, the fly ash in the waveguide tube 1 can be cleaned manually and / or by the purging unit. For example, the staff can directly or after the purging unit has completed purging, remove the second waveguide tube 12 and clean the fly ash in the first waveguide tube 11 and the second waveguide tube 12 manually. In addition, since the acoustic wave sensor 2 is close to the connection of the first waveguide tube 11 and the second waveguide tube 12, the fly ash around the acoustic wave sensor 2 can be reduced as much as possible to further improve the accuracy of the monitoring results of the acoustic wave sensor 2. When using the purging unit to purge the inside of the waveguide tube 1, the compressed air will first enter the main pipe 51 of the purge branch pipe 5 from the purge main pipe 4, and the time control switch controls when to open the purge main pipe 4 and the corresponding main pipe 51 to regularly and appropriately open some purge branch pipes 5 to purge the monitoring device. In this way, on the one hand, it can ensure that there will be no excessive accumulation of fly ash in the waveguide tube 1, and on the other hand, it also ensures the purging pressure of the purging unit, enabling the purging unit to operate normally.
[0040] The preferred embodiments of the present disclosure have been described in detail above with reference to the accompanying drawings. However, the present disclosure is not limited to the specific details in the above embodiments. Within the scope of the technical concept of the present disclosure, various simple modifications can be made to the technical solutions of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.
[0041] In addition, it should be noted that, in the various specific technical features described in the above specific embodiments, they can be combined in any suitable manner without conflict. To avoid unnecessary repetition, the present disclosure will not separately describe various possible combination methods.
[0042] Furthermore, any combination can be made between various different embodiments of the present disclosure as long as it does not violate the idea of the present disclosure, and it should also be regarded as the content disclosed by the present disclosure.
Claims
1. A monitoring device, characterized in that, Comprising: A waveguide tube for connecting to the boiler body; An acoustic wave sensor connected to the waveguide tube for detecting acoustic waves in the boiler body; And A strengthening structure provided on the waveguide tube and capable of connecting to the outer wall of the boiler body.
2. The monitoring device according to claim 1, wherein The waveguide tube extends obliquely upward in a direction away from the boiler body, and the strengthening structure extends obliquely upward from the waveguide tube to one side of the boiler body, so that one end of the strengthening structure is connected to the waveguide tube and the other end can be connected to the boiler body.
3. The monitoring device according to claim 1, characterized in that, The waveguide tube includes a first waveguide tube and a second waveguide tube. The first waveguide tube is used to connect to the boiler body. One end of the second waveguide tube is connected to a purging unit, and the other end is detachably connected to the first waveguide tube.
4. The monitoring device according to claim 3, characterized in that The strengthening structure is provided on the first waveguide tube or the second waveguide tube; The acoustic wave sensor is provided on the second waveguide tube and is located at one end of the second waveguide tube close to the first waveguide tube.
5. The monitoring device according to claim 1, characterized in that, A plurality of the strengthening structures are provided, and the plurality of strengthening structures are arranged at intervals along the circumferential or axial direction of the waveguide tube on the waveguide tube.
6. The monitoring device according to any one of claims 1-5, characterized in that, The strengthening structure is configured as a reinforcing rib.
7. A purging unit, characterized in that, Comprising: A purging main pipe; Purging branch pipes. A plurality of the purging branch pipes are provided, and the air inlets of the plurality of purging branch pipes are all communicated with the air outlet of the purging main pipe; And The monitoring device according to any one of claims 1-6, at least one of the monitoring devices is provided on each purging branch pipe, and the waveguide tube is communicated with the purging branch pipe.
8. The purging unit according to claim 7, wherein The purging branch pipe includes a main pipe and a branch pipe. The main pipe is communicated with the purging main pipe and is communicated with at least one branch pipe, and at least one of the monitoring devices is provided on the branch pipe.
9. The purging unit according to claim 8, wherein An electromagnetic valve is provided on the purging main pipe or the main pipe, and the electromagnetic valve is signal-connected to a time control switch.
10. A boiler, characterized in that, Comprising a boiler body and the monitoring device according to any one of claims 1-6, and / or the purging unit according to any one of claims 7-9.