Condenser exhaust steam pipeline leak detection structure

Abstract

The utility model relates to pipeline leak detection technical field, and disclose a kind of condenser exhaust steam pipeline leak detection structure, including mounting disc, the bottom of mounting disc is fixedly connected with connecting pipe, and ultrasonic sensor probe is installed in the through-penetration of connecting pipe, the top of mounting disc is provided with control panel, and control panel is electrically connected with ultrasonic sensor probe, the bottom of mounting disc is fixedly connected with two connecting frames symmetrically, and the inboard of two connecting frames is all clamped with U-shaped block.The utility model uses simply, by using the ultrasonic sensor probe of the radio cover paste on exhaust steam pipe wall, ultrasonic sensor probe will receive the specific frequency ultrasonic wave generated by high pressure steam when exhaust steam pipe leaks, to carry out the detection of leakage area, water-absorbing cloth can be pasted on exhaust steam pipe wall and move to absorb the moisture produced after steam condensation is soaked, the process can directly determine the leakage position and be more sensitive to tiny leakage.

Description

Technical Field

[0001] This utility model relates to the field of pipeline leak detection technology, specifically a leak detection structure for condenser exhaust steam pipeline. Background Technology

[0002] The condenser exhaust steam pipeline is a very important pipeline in power plants that use condensers, such as thermal power plants and nuclear power plants. Leaks in the exhaust steam pipeline will directly lead to a decrease in vacuum, which will seriously affect the unit efficiency and output, and may allow untreated wet steam and air to enter the turbine building.

[0003] Existing leak detection structures for condenser exhaust steam pipes employ traditional candle flame and thin-film methods. These methods are inefficient and pose a risk of combustion. While they can detect leaks, they are not sensitive to minute leaks. Therefore, those skilled in the art have provided a leak detection structure for condenser exhaust steam pipes to address the problems mentioned in the background section. Utility Model Content

[0004] The purpose of this invention is to provide a leak detection structure for condenser exhaust steam pipelines to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a leak detection structure for condenser exhaust steam pipeline, comprising an installation plate, a connecting pipe fixedly connected to the bottom of the installation plate, and an ultrasonic sensor probe installed through the connecting pipe; a control panel is provided on the top of the installation plate, and the control panel is electrically connected to the ultrasonic sensor probe; two connecting brackets are symmetrically fixedly connected to the bottom of the installation plate, and U-shaped blocks are snapped into the inner sides of the two connecting brackets; telescopic rods are fixedly connected to the opposite sides of the two U-shaped blocks, and rectangular plates are fixedly connected to the opposite ends of the two telescopic rods; the same circular frame is fixedly connected to the bottom of the two rectangular plates, and absorbent cloth is fixedly embedded in the circular frame.

[0006] As a further improvement of this utility model: a handle is fixedly connected to the top of the mounting plate, and the handle is located directly above the control panel.

[0007] As a further improvement of this utility model: a sound-receiving cover is fixedly connected to the bottom of the connecting pipe, and the sound-receiving cover covers the ultrasonic sensor probe inside.

[0008] As a further improvement of this utility model: the bottom of both connecting frames is fixedly connected with an arc-shaped plate, and the two arc-shaped plates are respectively located on both sides of the ultrasonic sensor probe.

[0009] As a further improvement of this utility model: both sides of the inner wall of the connecting pipe are provided with threaded holes, and each of the two threaded holes is threaded with a screw rod. The opposite ends of the two screw rods are respectively threaded to both sides of the ultrasonic sensor probe.

[0010] As a further embodiment of this utility model: a spring is sleeved on the outer wall of the telescopic rod, and one end of the spring is fixedly connected to the side of the U-shaped block near the rectangular plate, and the other end of the spring is fixedly connected to the side of the rectangular plate near the U-shaped block.

[0011] As a further improvement of this utility model: the absorbent cloth is located directly below the ultrasonic sensor probe, and both connecting brackets are L-shaped.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] After holding the handle and adjusting it through the control panel, attach the microphone cover to the wall of the exhaust steam pipe that needs to be tested. This is because the high-pressure steam leaking out when the exhaust steam pipe leaks will generate ultrasonic waves of a specific frequency, which will be received by the ultrasonic sensor probe. The circular frame is equipped with a water-absorbing cloth, which can be placed on the pipe wall of the approximate area of ​​the leak and moved around. When the steam comes into contact with the water-absorbing cloth, it will be blocked and the water-absorbing cloth will be contaminated with the moisture from the condensation of the steam.

[0014] This invention is simple to use. By attaching a microphone cover to the wall of the exhaust steam pipe and using an ultrasonic sensor probe, the ultrasonic sensor probe receives ultrasonic waves of a specific frequency generated by the high-pressure steam when the exhaust steam pipe leaks, thereby detecting the leak area. The absorbent cloth can be attached to the wall of the exhaust steam pipe and moved to absorb the moisture generated after the steam condenses and becomes wetted. This process can directly determine the location of the leak and is more sensitive to minor leaks. Attached Figure Description

[0015] Figure 1 This is a three-dimensional schematic diagram of the entire utility model;

[0016] Figure 2 This is a three-dimensional exploded view of the present invention;

[0017] Figure 3 This is a three-dimensional schematic diagram of the absorbent cloth in this utility model;

[0018] Figure 4 This is a three-dimensional cross-sectional view of the present invention.

[0019] In the diagram: 1. Mounting plate; 2. Handle; 3. Control panel; 4. Connecting pipe; 5. Microphone cover; 6. Connecting frame; 7. Rectangular plate; 8. U-shaped block; 9. Arc plate; 10. Spring; 11. Circular frame; 12. Screw hole; 13. Screw; 14. Ultrasonic sensor probe; 15. Telescopic rod; 16. Absorbent cloth. Detailed Implementation

[0020] 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. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0021] Please see Figures 1-4 In this embodiment of the present invention, a leak detection structure for condenser exhaust steam pipeline includes an installation plate 1. A connecting pipe 4 is fixedly connected to the bottom of the installation plate 1, and an ultrasonic sensor probe 14 is installed through the connecting pipe 4. A control panel 3 is provided on the top of the installation plate 1, and the control panel 3 is electrically connected to the ultrasonic sensor probe 14. Two connecting brackets 6 are symmetrically fixedly connected to the bottom of the installation plate 1, and U-shaped blocks 8 are snapped into the inner side of each of the two connecting brackets 6. Telescopic rods 15 are fixedly connected to the opposite side of each of the two U-shaped blocks 8, and rectangular plates 7 are fixedly connected to the opposite end of each of the two telescopic rods 15. The same circular frame 11 is fixedly connected to the bottom of the two rectangular plates 7, and an absorbent cloth 16 is fixedly embedded in the circular frame 11.

[0022] In this embodiment, a handle 2 is fixedly connected to the top of the installation disk 1, and the handle 2 is located directly above the control panel 3.

[0023] In this embodiment, a sound-receiving cover 5 is fixedly connected to the bottom of the connecting pipe 4, and the sound-receiving cover 5 covers the ultrasonic sensor probe 14 inside.

[0024] In this embodiment, the bottom of each of the two connecting frames 6 is fixedly connected to an arc plate 9, and the two arc plates 9 are located on both sides of the ultrasonic sensor probe 14.

[0025] In this embodiment, threaded holes 12 are provided on both sides of the inner wall of the connecting pipe 4, and threaded screws 13 are threaded through the two threaded holes 12. The opposite ends of the two screws 13 are respectively threaded through and connected to the two sides of the ultrasonic sensor probe 14.

[0026] In this embodiment, a spring 10 is sleeved on the outer wall of the telescopic rod 15, and one end of the spring 10 is fixedly connected to the side of the U-shaped block 8 near the rectangular plate 7, and the other end of the spring 10 is fixedly connected to the side of the rectangular plate 7 near the U-shaped block 8.

[0027] In this embodiment, the absorbent cloth 16 is located directly below the ultrasonic sensor probe 14. Both connecting brackets 6 are L-shaped. Two rectangular plates 7 are inserted horizontally between the receiver 5 and the two connecting brackets 6. Then, the two U-shaped blocks 8 are released and aligned with the two connecting brackets 6. At that time, the two U-shaped blocks 8 will be pushed closer to the connecting brackets 6 by the elastic force of the two springs 10, until they are finally locked on the connecting brackets 6. This completes the installation of the circular frame 11.

[0028] The working principle of this utility model is as follows: After holding the handle 2 and adjusting it through the control panel 3, the receiver 5 is then attached to the wall of the exhaust steam pipe to be detected. When the exhaust steam pipe leaks, the high-pressure steam will generate ultrasonic waves of a specific frequency, which will be received by the ultrasonic sensor probe 14. Then, by comparing the ultrasonic signal intensity at different leak detection interfaces through the ultrasonic sensor probe 14, the approximate area of ​​the leak can be determined. When the leak is determined, the two U-shaped blocks 8 can be pressed together. The absorbent cloth 16 is installed inside the circular frame 11. This can be moved on the pipe wall of the approximate area of ​​the leak. When the steam comes into contact with the absorbent cloth 16, it will be blocked and the absorbent cloth 16 will be contaminated with the water after the steam condenses. At this time, the leak location can be directly determined. The two arc-shaped plates 9 can be attached to the exhaust steam pipe wall to support the receiver 5. The receiver 5 protects the ultrasonic sensor probe 14 and blocks the sides of the ultrasonic sensor probe 14 to prevent the ultrasonic waves from spreading. This makes it easier for the ultrasonic sensor probe 14 to receive the ultrasonic waves.

[0029] 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 leak detection structure for condenser exhaust steam pipeline, comprising an installation panel (1), characterized in that: The bottom of the mounting plate (1) is fixedly connected to a connecting pipe (4), and an ultrasonic sensor probe (14) is installed through the connecting pipe (4). The top of the mounting plate (1) is provided with a control panel (3), and the control panel (3) is electrically connected to the ultrasonic sensor probe (14). The bottom of the mounting plate (1) is symmetrically fixedly connected to two connecting brackets (6), and U-shaped blocks (8) are snapped into the inner side of the two connecting brackets (6). Telescopic rods (15) are fixedly connected to the opposite side of the two U-shaped blocks (8), and rectangular plates (7) are fixedly connected to the opposite end of the two telescopic rods (15). The bottom of the two rectangular plates (7) is fixedly connected to the same circular frame (11), and an absorbent cloth (16) is fixedly embedded in the circular frame (11).

2. The condenser exhaust steam pipeline leak detection structure according to claim 1, characterized in that: The top of the mounting plate (1) is fixedly connected to a handle (2), and the handle (2) is located directly above the control panel (3).

3. The condenser exhaust steam pipeline leak detection structure according to claim 1, characterized in that: The bottom of the connecting pipe (4) is fixedly connected to a sound-receiving cover (5), and the sound-receiving cover (5) covers the ultrasonic sensor probe (14).

4. The condenser exhaust steam pipeline leak detection structure according to claim 1, characterized in that: The bottom of each of the two connecting frames (6) is fixedly connected to an arc plate (9), and the two arc plates (9) are located on both sides of the ultrasonic sensor probe (14).

5. A condenser exhaust steam pipeline leak detection structure according to claim 1, characterized in that: The inner walls of both sides of the connecting pipe (4) are provided with threaded holes (12), and each of the two threaded holes (12) is threaded with a screw (13). The opposite ends of the two screws (13) are respectively threaded to both sides of the ultrasonic sensor probe (14).

6. A leak detection structure for condenser exhaust steam pipeline according to claim 1, characterized in that: A spring (10) is fitted on the outer wall of the telescopic rod (15), and one end of the spring (10) is fixedly connected to the side of the U-shaped block (8) near the rectangular plate (7), and the other end of the spring (10) is fixedly connected to the side of the rectangular plate (7) near the U-shaped block (8).

7. A leak detection structure for condenser exhaust steam pipeline according to claim 1, characterized in that: The absorbent cloth (16) is located directly below the ultrasonic sensor probe (14), and both connecting frames (6) are L-shaped.

Images