Tubular air pre-heater leakage detection device

Abstract

The utility model relates to the technical field of air pre-heater leakage detection, in particular to a tubular air pre-heater leakage detection device which comprises a sound receiving portion, a sound conduction portion and a sound collection portion, the sound conduction portion is arranged on one side of the sound receiving portion, the sound collection portion is arranged on one side of the sound conduction portion, and the sound receiving portion comprises a fixing hoop. A sound insulation and sound receiving assembly is arranged on one side of the fixing hoop, the sound conduction part comprises a first connecting pipe, the first connecting pipe is arranged on one side of the sound insulation and sound receiving assembly, a detachable sound transmission assembly is arranged on one side of the first connecting pipe, and the sound collection part comprises a mounting shell which is arranged on one side of the detachable sound transmission assembly. According to the air pre-heater air leakage detection device, through the air leakage holes formed in the air pre-heater pipe, sound signals can be efficiently collected, leakage points can be accurately positioned, the leakage detection accuracy is effectively improved, safe and stable operation of an air pre-heater is ensured, and the energy loss and the equipment failure risk caused by air leakage are reduced.

Description

Technical Field

[0001] This utility model relates to the field of air preheater leak detection technology, and in particular to a tubular air preheater leak detection device. Background Technology

[0002] In industrial production, tubular air preheaters are crucial equipment, and their operating status directly affects the efficiency and stability of the entire system. However, during long-term use, air preheaters are prone to air leakage due to wear, corrosion, and aging of seals.

[0003] Traditional leak detection methods often rely on manual experience and simple sound judgment, which is not only inefficient but also difficult to guarantee accuracy. Furthermore, significant ambient noise interferes with the accuracy of leak detection personnel in capturing the sound of leaks, making it difficult to pinpoint the leak location. This, in turn, affects timely equipment repair and maintenance, resulting in energy waste and reduced production efficiency. In addition, some existing leak detection tools or devices are either complex in structure and inconvenient to install, hindering rapid on-site detection, or have limited functionality, failing to meet the practical needs of efficient and accurate leak detection. Therefore, we propose a tubular air preheater leak detection device. Utility Model Content

[0004] This invention addresses the shortcomings of existing leak detection methods, which often rely on manual experience and simple sound judgment, resulting in low efficiency and unreliable accuracy. Furthermore, significant ambient noise interferes with the accurate detection of leak sounds, making it difficult to pinpoint the leak location. This, in turn, hinders timely equipment repair and maintenance, leading to energy waste and reduced production efficiency. Additionally, existing leak detection tools or devices are either complex in structure and inconvenient to install, hindering rapid on-site detection, or have limited functionality, failing to meet the practical needs for efficient and accurate leak detection. Therefore, this invention proposes a tubular air preheater leak detection device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A leak detection device for a tubular air preheater includes a sound receiving section, a sound conducting section, and a sound collecting section. The sound conducting section is disposed on one side of the sound receiving section, and the sound collecting section is disposed on one side of the sound conducting section. The sound receiving section includes a fixing clamp, and a sound insulation and sound-collecting component is disposed on one side of the fixing clamp. The sound conducting section includes a connecting pipe, and the connecting pipe is disposed on one side of the sound insulation and sound-collecting component. A detachable sound transmission component is disposed on one side of the connecting pipe. The sound collecting section includes a mounting shell, and the mounting shell is disposed on one side of the detachable sound transmission component. A high-efficiency sound collecting component is disposed on one side of the mounting shell.

[0007] Preferably, the sound insulation and sound collection assembly includes a sound collection shell, which is disposed at the end of the fixing hoop. A sound insulation shell is disposed on the inner side wall of the sound collection shell, a sound transmission plate is fitted into one side of the sound collection shell, and a sound insulation ring is disposed on one side of the sound collection shell.

[0008] Preferably, the detachable sound transmission assembly includes a rubber sound transmission tube one, which is inserted into one end of a connecting tube one. A three-way connector is provided at one end of the rubber sound transmission tube one, and a rubber sound transmission tube two is provided at one end of the three-way connector. A connecting tube two is inserted into one end of the rubber sound transmission tube two.

[0009] Preferably, the high-efficiency sound collection component includes an air preheater tube, one side of the mounting shell is connected to one side of the connecting pipe, one end of the air preheater tube is threaded to the inside of the mounting shell, several air leakage holes are provided on the outside of the air preheater tube, a sealing cap is provided at the end of the air preheater tube away from the mounting shell, and sealing rings are provided between the sealing cap and the air preheater tube and between the mounting shell and the air preheater tube.

[0010] Preferably, the ends of both the connecting pipe and the tee connector are tapered.

[0011] Preferably, the sound insulation ring is made of sound insulation cotton.

[0012] In summary, the beneficial effects of this utility model are as follows:

[0013] Precise Leak Detection: By setting several air leakage holes on the air preheater tubes, sound signals can be collected efficiently to accurately locate leaks, effectively improving the accuracy of leak detection, ensuring the safe and stable operation of the air preheater, and reducing energy loss and equipment failure risks caused by air leakage.

[0014] Sound insulation and noise reduction: The sound insulation shell and sound insulation ring (made of sound insulation cotton) in the sound insulation and sound receiving components can effectively shield external interference noise, making the received sound signal clearer, which helps operators to accurately judge the air leakage situation and improve the efficiency and quality of leak detection work.

[0015] Easy to install and disassemble: The detachable sound transmission component adopts the plug-in method of rubber sound transmission tube and connecting tube, and is equipped with a three-way connector, which facilitates the installation, disassembly and maintenance of the device. It can save time and labor costs, and improve the service life and flexibility of the device, adapting to different working scenarios and equipment needs.

[0016] Excellent sealing: The sealing rings installed between the air preheater tube and the mounting shell and sealing cover ensure the airtightness of the device, prevent sound leakage and the entry of external impurities, further improve the accuracy and stability of sound collection, and thus enhance the reliability and practicality of the entire leak detection device. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the front axial side of this utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the present invention with a cross-section of the axial side.

[0019] Figure 3 This utility model Figure 2 A schematic diagram of the structure of A in the middle.

[0020] In the diagram: 1. Fixing hoop; 2. Sound receiving shell; 3. Sound transmission plate; 4. Sound insulation ring; 5. Sound insulation shell; 6. Connecting pipe one; 7. Rubber sound transmission tube one; 8. T-connector; 9. Rubber sound transmission tube two; 10. Connecting pipe two; 11. Mounting shell; 12. Air preheater pipe; 13. Air leakage hole; 14. Sealing cover; 15. Sealing ring. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] like Figures 1-3 As shown, a leak detection device for a tubular air preheater involves installing a sound-receiving shell 2 at the end of a fixing clamp 1, ensuring a tight connection between the two. A sound-insulating shell 5 is fixed to the inner wall of the sound-receiving shell 2 to enhance sound insulation. A sound-transmitting plate 3 is fitted and installed on one side of the sound-receiving shell 2, ensuring a secure and tight fit for effective sound reception. A sound-insulating ring 4 is installed on the same side of the sound-receiving shell 2. Since the sound-insulating ring 4 is made of sound-insulating cotton, it must be properly fixed to ensure its sound insulation performance.

[0023] Connecting the sound transmission section: Connect one end of connecting tube 6 to one side of the sound-receiving shell 2 in the sound insulation and sound-receiving assembly, ensuring a tight connection. Insert the rubber sound-transmitting tube 7 into the other end of connecting tube 6, utilizing the elasticity of the rubber sound-transmitting tube 7 to ensure a firm and leak-proof connection. Because the end of connecting tube 6 has a conical structure, it can better fit with the rubber sound-transmitting tube 7, enhancing the connection seal. Install a three-way connector 8 at one end of the rubber sound-transmitting tube 7, again utilizing its conical end to ensure a tight connection with the rubber sound-transmitting tube 7. Connect one end of rubber sound-transmitting tube 9 to one end of the three-way connector 8, and then insert connecting tube 10 into the other end of rubber sound-transmitting tube 9, completing the assembly of the sound transmission section.

[0024] Install the high-efficiency sound collection assembly: Connect the mounting housing 11 to one side of the connecting pipe 10 in a through-structure to ensure smooth sound transmission. Connect one end of the air preheater pipe 12 to the inside of the mounting housing 11 via threads, ensuring the threads are tightened to guarantee the stability and sealing of the connection. Install a sealing cap 14 at the end of the air preheater pipe 12 furthest from the mounting housing 11, and install sealing rings 15 between the sealing cap 14 and the air preheater pipe 12, and between the mounting housing 11 and the air preheater pipe 12, respectively, to ensure the sealing of the entire sound collection assembly and prevent sound leakage and the entry of external impurities.

[0025] This embodiment uses the method of usage.

[0026] Positioning and installation: Wrap the fixing hoop 1 around and fix it near the part of the tubular air preheater where air leakage may occur. Use the fixing hoop 1 to stably fix the entire detection device in the target position, so that the sound receiving shell 2 is close to the surface of the air preheater, which is convenient for receiving sound signals.

[0027] Sound collection and conduction: When there is air leakage in the air preheater, the sound generated by the leakage enters the sound-collecting shell 2 through the sound transmission plate 3. The sound insulation shell 5 and the sound insulation ring 4 can effectively isolate external noise, making the collected leakage sound purer. After the sound is collected by the sound-collecting shell 2, it is conducted through the connecting pipe 1 6 to the rubber sound transmission tube 1 7, then split through the tee connector 8 to the rubber sound transmission tube 2 9, and finally conducted through the connecting pipe 2 10 to the mounting shell 11.

[0028] Sound analysis and judgment: After sound enters the mounting shell 11, it is further collected and amplified through the air preheater tube 12, which is connected to the mounting shell 11. Operators can listen to the sound inside the air preheater tube 12 and, based on their experience or relevant testing standards, determine whether air leakage exists and its severity. Since several leakage holes 13 are provided on the outside of the air preheater tube 12, the sound intensity and characteristics received by leakage holes at different locations may vary. Operators can use this to initially determine the approximate direction of the leakage point, achieving precise location of the leak in the tubular air preheater.

[0029] This embodiment describes the device maintenance and disassembly.

[0030] Maintenance: Regularly check the connections of all components of the device to ensure they are secure, such as whether the fixing clamp 1 is loose, whether the connections between the pipes are tight, and whether the sealing ring 15 is aged or damaged. If the sound insulation ring 4 of the sound insulation cotton component is found to be damaged or its sound insulation effect is reduced, it should be replaced in time.

[0031] Disassembly: When disassembly of the device is required, first remove the sealing cap 14 from the air preheater tube 12, then rotate the air preheater tube 12 counterclockwise to separate it from the mounting shell 11. Next, sequentially disconnect the connecting tube 10 from the rubber sound transmission tube 9, the rubber sound transmission tube 9 from the tee connector 8, the rubber sound transmission tube 7 from the tee connector 8, and the rubber sound transmission tube 7 from the connecting tube 6. Finally, remove the receiver shell 2 from the fixing clamp 1 to complete the disassembly of the entire device for cleaning, maintenance, or component replacement.

[0032] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A tube air preheater leak detection device, characterized by, The application relates to a sound receiving device, which comprises a sound receiving part, a sound conducting part and a sound collecting part, the sound conducting part is arranged on one side of the sound receiving part, the sound collecting part is arranged on one side of the sound conducting part, the sound receiving part comprises a fixing hoop (1), one side of the fixing hoop (1) is provided with a sound insulation sound collecting assembly, the sound conducting part comprises a connecting pipe I (6), the connecting pipe I (6) is arranged on one side of the sound insulation sound collecting assembly, one side of the connecting pipe I (6) is provided with a detachable sound collecting assembly, the sound collecting part comprises a mounting shell (11), the mounting shell (11) is arranged on one side of the detachable sound collecting assembly, one side of the mounting shell (11) is provided with a high-efficiency sound collecting assembly.

2. A tube air preheater leak detection device according to claim 1, wherein The sound insulation sound collecting assembly comprises a sound collecting shell (2), the sound collecting shell (2) is arranged at the end of the fixing hoop (1), a sound insulation shell (5) is arranged on the inner side wall of the sound collecting shell (2), a sound collecting plate (3) is inlaid on one side of the sound collecting shell (2), and a sound insulation ring (4) is arranged on one side of the sound collecting shell (2).

3. A tube air preheater leak detection device according to claim 1, wherein The detachable sound collecting assembly comprises a rubber sound collecting pipe I (7), the rubber sound collecting pipe I (7) is inserted into one end of the connecting pipe I (6), one end of the rubber sound collecting pipe I (7) is provided with a three-way connector (8), one end of the three-way connector (8) is provided with a rubber sound collecting pipe II (9), and one end of the rubber sound collecting pipe II (9) is inserted into a connecting pipe II (10).

4. A tube air preheater leak detection device according to claim 3, wherein The high-efficiency sound collecting assembly comprises an air preheater pipe (12), one side of the mounting shell (11) is in communication with one side of the connecting pipe II (10) in a connecting mode, one end of the air preheater pipe (12) is screw-connected to the inner side of the mounting shell (11), a plurality of air leakage holes (13) are arranged on the outer side of the air preheater pipe (12), one end of the air preheater pipe (12) away from the mounting shell (11) is provided with a sealing cover (14), and sealing rings (15) are arranged between the sealing cover (14) and the air preheater pipe (12) and between the mounting shell (11) and the air preheater pipe (12).

5. A tube air preheater leak detection device according to claim 3, wherein The end of the connecting pipe I (6) and the three-way connector (8) is in a conical structure.

6. A tube air preheater leak detection device according to claim 2, wherein The sound insulation ring (4) is made of sound insulation cotton.

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