Pneumatic hose-type infrared thermal imaging-based corrosion detection device for inner wall of hydraulic cylinder

Abstract

A pneumatic hose (4.1)-type infrared thermal imaging-based corrosion detection device for the inner wall of a hydraulic cylinder (6), comprising an infrared thermal imaging probe module (5) used for detection of the inner wall of the hydraulic cylinder (6). The infrared thermal imaging probe module (5) is connected to a pneumatic fiber hose (4), and the pneumatic fiber hose (4) extends out of the hydraulic cylinder (6); a control assembly used for controlling opening and closing of an inlet of the hydraulic cylinder (6) is arranged at the inlet of the hydraulic cylinder (6), and the pneumatic fiber hose (4) extends out of the hydraulic cylinder (6) through the control assembly; the pneumatic fiber hose (4) comprises a plurality of pneumatic hoses (4.1) arranged side by side, the plurality of pneumatic hoses (4.1) are arranged at equal intervals in the circumferential direction and are fixedly connected to the infrared thermal imaging probe module (5), and the movement of the plurality of pneumatic hoses (4.1) is independently controlled. The detection device can directly obtain the corrosion state of the inner wall of the hydraulic cylinder (6), and can provide more accurate and more comprehensive data, the hydraulic cylinder (6) assembly does not need to be disassembled, unmanned operation can be achieved in the whole process, and the efficiency and accuracy of corrosion detection of the inner wall of the hydraulic cylinder (6) are significantly improved.

Description

A pneumatic hose-type infrared thermal imaging hydraulic cylinder inner wall corrosion detection equipment Technical Field

[0001] The present invention belongs to the technical field of corrosion detection, and in particular relates to a pneumatic hose type infrared thermal imaging hydraulic cylinder inner wall corrosion detection device. Background Art

[0002] Corrosion is one of the main failure modes of hydraulic cylinders, which seriously affects the service life of hydraulic cylinders. However, the current method for corrosion detection of hydraulic cylinders is still at the stage of regular manual inspection, which has poor timeliness, low degree of automation, and low detection efficiency, greatly affecting production efficiency. The existing patent discloses an ultrasonic detection probe section for long-distance pipeline internal detection (patent number CN202223219437.3), which belongs to the field of pipeline ultrasonic internal detection technology. It includes a probe cabin and a phased array probe arranged on the outside. The phased array probe includes multiple ultrasonic probes uniformly distributed in an array along the circumferential direction of the probe cabin pipeline. Each ultrasonic probe covers a certain circumferential detection area. At the same time, two adjacent ultrasonic probes are staggered along the circumferential direction of the pipeline so that the phased array probe can achieve full coverage of the pipeline detection along the circumferential direction. It has high integration, short length and small size, strong passability, and can achieve high detection resolution in a small size. It can reduce the requirements for the length of the ball barrel and the working space, and is convenient for on-site implementation.

[0003] However, the mobility of the above-mentioned equipment is limited when dealing with geometric changes in the inner wall of the hydraulic cylinder, and it cannot achieve flexible adaptation and positioning, making it difficult to meet the demand for automated detection of the various positions of the inner wall of the hydraulic cylinder. In addition, when the diameter of the internal pipe of the hydraulic cylinder is inconsistent or there is a bend, the technical difficulty of using an ultrasonic probe for non-contact detection is high and the detection accuracy is low.

[0004] Therefore, there is an urgent need for a pneumatic hose-type infrared thermal imaging hydraulic cylinder inner wall corrosion detection equipment to solve the above problems.

[0005] Summary of the Invention

[0006] In order to solve the above technical problems, the present invention proposes a pneumatic hose-type infrared thermal imaging hydraulic cylinder inner wall corrosion detection equipment, which can realize automatic detection of the corrosion status of the hydraulic cylinder inner wall, and can realize unmanned hydraulic cylinder corrosion monitoring. It improves the corrosion detection efficiency of the hydraulic cylinder and reduces the detection cost; at the same time, compared with the traditional method of using ultrasonic probes to detect hydraulic cylinders along the side thickness of the outer wall, infrared thermal imaging technology has higher accuracy and more intuitive positioning of corrosion parts. It is suitable for various types of hydraulic cylinders and has good adaptability.

[0007] To achieve the above objectives, the present invention provides a pneumatic hose-type infrared thermal imaging hydraulic cylinder inner wall corrosion detection equipment, comprising an infrared thermal imaging probe module for detecting the inner wall of the hydraulic cylinder, the infrared thermal imaging probe module being connected to a pneumatic fiber hose, the pneumatic fiber hose extending out of the hydraulic cylinder;

[0008] The inlet of the hydraulic cylinder is provided with a control component for controlling the opening and closing of the hydraulic cylinder inlet, and the pneumatic fiber hose is extended out of the hydraulic cylinder by the control component;

[0009] The pneumatic fiber hose includes a plurality of pneumatic hoses arranged side by side, the plurality of pneumatic hoses are arranged at equal intervals in the circumferential direction and are fixedly connected to the infrared thermal imaging probe module, and the movements of the plurality of pneumatic hoses are controlled separately.

[0010] Preferably, the infrared thermal imaging probe module includes a connector, and the plurality of pneumatic hoses are respectively fixedly connected to the connector; and a detection component for detecting the inner wall of the hydraulic cylinder is fixedly connected to the end of the connector.

[0011] Preferably, the detection component includes a probe module housing fixedly mounted on the end of the connector, an ultrasonic positioning probe and an infrared thermal imaging probe are arranged in the probe module housing, the ultrasonic positioning probe and the infrared thermal imaging probe are respectively connected to data transmission lines, and the data transmission lines extend out of the hydraulic cylinder along the pneumatic fiber hose.

[0012] Preferably, the infrared thermal imaging probe is arranged at an end of the probe module housing away from the connector, and the ultrasonic positioning probe is arranged at an end of the probe module housing close to the connector.

[0013] Preferably, a plurality of the pneumatic hoses are wrapped around and fitted outside the data transmission line.

[0014] Preferably, the control component includes a T-type three-way ball valve arranged at the inlet of the hydraulic cylinder, and the T-type three-way ball valve is provided with a base connected to the pneumatic hose, and the infrared thermal imaging probe module passes through the T-type three-way ball valve from the base and enters the hydraulic cylinder.

[0015] Preferably, the T-type three-way ball valve is provided with a pneumatic actuator for controlling the opening and closing of the T-type three-way ball valve.

[0016] Preferably, a hydraulic cylinder piston rod is provided in the hydraulic cylinder, and the infrared thermal imaging probe module is provided corresponding to the hydraulic cylinder piston rod.

[0017] Compared with the prior art, the present invention has the following advantages and technical effects: the present invention discloses a pneumatic hose-type infrared thermal imaging hydraulic cylinder inner wall corrosion detection equipment. The control component separates the working state of the hydraulic cylinder and the working state of the corrosion detection equipment. Under the premise of ensuring that the original working state of the hydraulic cylinder is not affected, the corrosion detection equipment can be added to the system, and the working states of the two systems do not interfere with each other, thereby avoiding leakage in the hydraulic system when the hydraulic cylinder is in the working state and ensuring good sealing of the hydraulic system. Unlike detectors that use ultrasonic waves to detect the thickness of the hydraulic cylinder along the outer wall to determine whether the hydraulic cylinder is corroded, the infrared thermal imaging probe module has higher accuracy in corrosion detection of the hydraulic cylinder inner wall and more intuitive system imaging. There is no need to adjust or modify its structure for hydraulic cylinders of different models or specifications or different hydraulic media. The movement of the pneumatic fiber hose is independently controlled by gas flow, and it can be contracted and expanded at different positions, thereby applying different forces to control the shape of the pneumatic fiber hose. By adjusting the degree, position and sequence of contraction and expansion of the pneumatic hose, the infrared thermal imaging probe module is accurately guided to complete the required motion trajectory in three-dimensional space, and ultimately positioned to the pre-planned detection position, thereby improving detection accuracy and avoiding interference in the detection process.

[0018] The present invention can directly obtain the corrosion status of the inner wall of the hydraulic cylinder and provide more accurate and comprehensive data without the need to disassemble the hydraulic cylinder assembly. The entire process can be realized unmanned, which significantly improves the efficiency and accuracy of hydraulic cylinder inner wall corrosion detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings, which constitute part of this application, are intended to provide a further understanding of this application. The exemplary embodiments and descriptions of this application are intended to explain this application and do not constitute an improper limitation on this application. In the accompanying drawings:

[0020] FIG1 is a schematic diagram of a pneumatic hose-type infrared thermal imaging hydraulic cylinder inner wall corrosion detection device according to the present invention;

[0021] FIG2 is a schematic diagram of a T-type three-way ball valve of the present invention;

[0022] FIG3 is an axial view of the base of the present invention;

[0023] FIG4 is a view of the axis of the pneumatic fiber hose of the present invention;

[0024] FIG5 is a top view of the pneumatic fiber hose of the present invention;

[0025] FIG6 is a schematic diagram of the structure of the infrared thermal imaging probe module of the present invention;

[0026] In the figure: 1. Base; 2. T-type three-way ball valve; 3. Pneumatic actuator; 4. Pneumatic fiber hose; 41. Pneumatic hose; 5. Infrared thermal imaging probe module; 51. Connector; 52. Ultrasonic positioning probe; 53. Infrared thermal imaging probe; 54. Data transmission line; 55. Probe module housing; 6. Hydraulic cylinder; 7. Hydraulic cylinder piston rod. DETAILED DESCRIPTION

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0029] 1 to 6 , this embodiment provides a pneumatic hose-type infrared thermal imaging hydraulic cylinder inner wall corrosion detection equipment, including an infrared thermal imaging probe module 5 for detecting the inner wall of a hydraulic cylinder 6 , the infrared thermal imaging probe module 5 being connected to a pneumatic fiber hose 4 , which extends out of the hydraulic cylinder 6 ;

[0030] The inlet of the hydraulic cylinder 6 is provided with a control component for controlling the opening and closing of the inlet of the hydraulic cylinder 6, and the pneumatic fiber hose 4 is extended out of the hydraulic cylinder 6 by the control component;

[0031] The pneumatic fiber hose 4 includes a plurality of pneumatic hoses 41 arranged side by side. The pneumatic hoses 41 are arranged at equal intervals in the circumferential direction and are fixedly connected to the infrared thermal imaging probe module 5 . The movements of the pneumatic hoses 41 are controlled separately.

[0032] The present invention discloses a pneumatic hose-type infrared thermal imaging hydraulic cylinder inner wall corrosion detection equipment. A control component separates the working state of the hydraulic cylinder 6 from the working state of the corrosion detection equipment. While ensuring that the original working state of the hydraulic cylinder 6 is not affected, the corrosion detection equipment is added to the system. The working states of the two systems do not interfere with each other, avoiding leakage in the hydraulic system when the hydraulic cylinder 6 is in operation and ensuring good sealing of the hydraulic system. Unlike detectors that use ultrasonic waves to detect the thickness of the hydraulic cylinder 6 along the outer wall to determine whether the hydraulic cylinder 6 is corroded, the infrared thermal imaging probe module 5 has higher accuracy in corrosion detection of the inner wall of the hydraulic cylinder 6 and more intuitive system imaging. There is no need to adjust or modify its structure for hydraulic cylinders 6 of different models or specifications or different hydraulic media. The movement of the pneumatic fiber hose 4 is independently controlled by gas flow, achieving contraction and expansion at different positions, thereby applying different forces to control the shape of the pneumatic fiber hose. By adjusting the degree, position, and sequence of contraction and expansion of the pneumatic hose 41, the infrared thermal imaging probe module 5 is accurately guided to complete the required motion trajectory in three-dimensional space, ultimately positioning it at a pre-planned detection position, improving detection accuracy and avoiding interference during the detection process. The present invention can directly obtain the corrosion status of the inner wall of the hydraulic cylinder 6 and provide more accurate and comprehensive data without disassembling the hydraulic cylinder 6 components. The entire process can be realized unmanned, which significantly improves the efficiency and accuracy of the corrosion detection of the inner wall of the hydraulic cylinder 6.

[0033] In a further optimized solution, the infrared thermal imaging probe module 5 includes a connector 51, to which several pneumatic hoses 41 are fixedly connected. A detection assembly for detecting the inner wall of the hydraulic cylinder 6 is fixedly connected to the end of the connector 51. The pneumatic hoses 41 are fixedly connected to the connector 51. The pneumatic hoses 41 drive the movement of the detection assembly by controlling the movement of the connector 51, achieving the desired motion trajectory of the detection assembly in three-dimensional space, ultimately positioning it at the desired detection position.

[0034] Furthermore, the pneumatic hose 41 and the connector 51 are connected in a rotary manner to ensure good sealing performance and facilitate maintenance and replacement of the infrared thermal imaging probe module 5 .

[0035] A further optimized solution is that the detection component includes a probe module housing 55 fixedly installed at the end of the connector 51, and an ultrasonic positioning probe 52 and an infrared thermal imaging probe 53 are arranged in the probe module housing 55. The ultrasonic positioning probe 52 and the infrared thermal imaging probe 53 are respectively connected to a data transmission line 54, and the data transmission line 54 extends out of the hydraulic cylinder 6 along the pneumatic fiber hose 4; the infrared thermal imaging probe 53 is arranged at the end of the probe module housing 55 away from the connector 51, and the ultrasonic positioning probe 52 is arranged at the end of the probe module housing 55 close to the connector 51. The ultrasonic positioning probe 52 is used to determine the probe's position within the hydraulic cylinder 6. The ultrasonic probe parameters need to be adjusted according to the working environment, using different frequencies, powers, and pulse widths to receive signals. High-frequency and low-frequency noise are eliminated through filters to achieve better positioning results. The infrared thermal imaging probe 53 is used to detect thermal radiation from the inner wall of the hydraulic cylinder 6 and needs to be calibrated and adjusted according to the working environment. In this embodiment, short-wave infrared radiation, which is more sensitive to temperature changes, is selected to detect the corrosion state of the inner wall of the hydraulic cylinder 6. Before starting the scan, a background calibration is performed on the inner wall of the hydraulic cylinder 6. This involves using the probe to capture background thermal radiation to ensure a baseline under temperature and environmental conditions, distinguishing thermal changes in the measured area from the influence of the environment and the probe itself, and ensuring that the temperature image accurately reflects the surface temperature. The infrared thermal imager's lens focal length and field of view are adjusted according to the size of the hydraulic cylinder 6 and the detection requirements to ensure that the target in the image is clearly visible. The sampling frequency and measurement time of the infrared thermal imaging are considered, and image quality and detection speed are balanced according to the working environment of the inner wall of the hydraulic cylinder 6. An appropriate thermal imaging resolution is selected to clearly distinguish details of the inner wall of the hydraulic cylinder 6 in the image, especially corroded or abnormal areas.

[0036] In a further optimization, several pneumatic hoses 41 are looped around and attached to the outside of the data transmission line 54. The data transmission lines 54 for the infrared thermal imaging probe 53 and the ultrasonic positioning probe 52 are arranged along the pneumatic fiber hose 4. These pneumatic hoses 41 are also looped around and attached to the outside of the data transmission line 54, driving the data transmission line 54 along with it, ensuring the normal transmission of test data. Transmitting the test information to the terminal for imaging and analysis is more intuitive and convenient.

[0037] A further optimized solution includes a control assembly comprising a T-shaped three-way ball valve 2 installed at the inlet of the hydraulic cylinder 6. The T-shaped three-way ball valve 2 is equipped with a base 1 connected to a pneumatic hose 41. The infrared thermal imaging probe module 5 passes through the T-shaped three-way ball valve 2 from the base 1 and into the hydraulic cylinder 6. The T-shaped three-way ball valve 2 is equipped with a pneumatic actuator 3 for controlling the opening and closing of the T-shaped three-way ball valve 2. The base 1 is connected to the hydraulic pipeline of the hydraulic cylinder 6 via the T-shaped three-way ball valve 2. The pneumatic actuator 3 is used to control the opening and closing of the T-shaped three-way ball valve 2, disconnecting the T-shaped three-way ball valve 2 from the base 1, thus preventing the flow of fluid from the hydraulic cylinder 6 into the base 1. When the hydraulic system of the hydraulic cylinder 6 is in the shutdown state, the T-shaped three-way ball valve 2 opens the base 1, allowing the infrared thermal imaging probe module 5 to be pulled into the interior of the hydraulic cylinder 6 via the pneumatic fiber hose for corrosion detection.

[0038] Furthermore, O-rings are used for sealing at the interfaces between the base 1 and the T-type three-way ball valve 2 and the T-type three-way ball valve 2 and the hydraulic cylinder 6, and dust rings are added to prevent external impurities and dust from entering the hydraulic system.

[0039] Furthermore, an O-ring is installed at the channel opening of the T-type three-way ball valve 2 and is equipped with a high-pressure resistant filler, which is filled in the gap between the pneumatic fiber hose 4 and the opening to prevent leakage in the hydraulic system of the hydraulic cylinder 6 when the hydraulic cylinder 6 is in working condition and the corrosion detection equipment is not in use.

[0040] In a further optimization scheme, a hydraulic cylinder piston rod 7 is disposed within the hydraulic cylinder 6, and the infrared thermal imaging probe module 5 is disposed correspondingly to the hydraulic cylinder piston rod 7. The hydraulic cylinder piston rod 7 is a moving component within the hydraulic cylinder 6. The ultrasonic positioning probe 52 is used to detect the relative position of the probe portion within the hydraulic cylinder 6 and to determine the position of the hydraulic cylinder piston rod 7 relative to the probe when the hydraulic cylinder 6 is in operation. This determines the operating range of the probe when the hydraulic cylinder 6 is in operation and prevents the probe portion from colliding with the piston rod or even being damaged.

[0041] Furthermore, before using the present invention, the pneumatically-actuated T-type three-way ball valve 2 is first installed on the hydraulic cylinder 6, connected to the hydraulic pipeline of the base 1 and the hydraulic cylinder 6, and the on-off state of the pneumatically-actuated T-type three-way ball valve 2 is adjusted according to the working state of the hydraulic cylinder 6. When the corrosion detection equipment is in standby state, the pneumatic fiber hose is promptly retracted to the base 1 and the T-type three-way ball valve 2 is adjusted to disconnect the connection between the corrosion detection equipment and the hydraulic system of the hydraulic cylinder 6 to ensure the sealing of the hydraulic system.

[0042] Furthermore, when using the present invention, the frequency, power, pulse width and other parameters of the ultrasonic positioning probe 52 should be changed according to the medium used by the hydraulic cylinder 6 to adapt to different working conditions; the quality of the O-ring should be checked regularly and the filling material should be replenished and replaced to ensure the sealing of the device, prevent the hydraulic cylinder 6 from leaking, and prevent air and impurities from entering the hydraulic system to accelerate the corrosion of the hydraulic cylinder 6.

[0043] Testing steps:

[0044] ① Connect the infrared thermal imaging probe module 5 to the pneumatic fiber hose 4 through the rotary connector 51;

[0045] ② Install the base 1 on the T-type three-way ball valve 2 and connect it to the hydraulic cylinder 6, and install the O-ring and dust ring at the interface;

[0046] ③ When the hydraulic system of the hydraulic cylinder 6 is in the shutdown state, the pneumatic actuator 3 adjusts the T-type three-way ball valve 2 to make one side of the base 1 conductive;

[0047] ④ By adjusting the expansion and contraction states of the multiple pneumatic hoses 41 at different positions inside the pneumatic fiber hose 4, the bending action of the fiber hose is controlled to pull the probe part to the desired position;

[0048] ⑤ Use the ultrasonic positioning probe 52 on the infrared thermal imaging probe module 5 to locate the hydraulic cylinder piston rod 7 to obtain the theoretical working position range of the probe;

[0049] ⑥ Use the thermal imaging probe of the infrared thermal imaging probe module 5 to detect the inner wall of the hydraulic cylinder 6 at the location and transmit the thermal radiation information to the base 1, and change the detection position of the infrared thermal imaging probe module 5 through the pneumatic fiber hose 4;

[0050] ⑦ The corrosion detection data obtained by the infrared thermal imaging probe module 5 includes transmitting the data to a computer, mobile device or cloud server for analysis and recording;

[0051] ⑧ After the corrosion detection process is completed, the pneumatic actuator 3 disconnects one side of the base 1 by adjusting the T-type three-way ball valve 2, isolating the corrosion detection equipment from the hydraulic system of the hydraulic cylinder 6, and preventing the infrared thermal imaging probe module 5 from being exposed to the internal environment of the hydraulic cylinder 6 for a long time, causing rust or corrosion of the components, and affecting the reliability and life of the infrared thermal imaging probe 53.

[0052] In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0053] The embodiments described above are merely descriptions of preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Without departing from the spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by persons skilled in the art should fall within the scope of protection defined by the claims of the present invention.

Claims

1. An air-operated hose type infrared thermal imaging corrosion detection equipment for the inner wall of a hydraulic cylinder, characterized in that: It includes an infrared thermal imaging probe module (5) for detecting the inner wall of the hydraulic cylinder (6). The infrared thermal imaging probe module (5) is connected to a pneumatic fiber hose (4), and the pneumatic fiber hose (4) extends out of the hydraulic cylinder (6). A control component for controlling the opening and closing of the inlet of the hydraulic cylinder (6) is provided at the inlet of the hydraulic cylinder (6), and the pneumatic fiber hose (4) extends out of the hydraulic cylinder (6) through the control component. The pneumatic fiber hose (4) includes a number of pneumatic hoses (41) arranged side by side. The number of the pneumatic hoses (41) is circumferentially arranged at equal intervals and fixedly connected to the infrared thermal imaging probe module (5), and the movements of the number of the pneumatic hoses (41) are controlled separately.

2. The pneumatic hose type infrared thermal imaging corrosion detection equipment for the inner wall of a hydraulic cylinder according to claim 1, wherein: The infrared thermal imaging probe module (5) includes a connector (51), and the number of the pneumatic hoses (41) are respectively fixedly connected to the connector (51); a detection component for detecting the inner wall of the hydraulic cylinder (6) is fixedly connected to the end of the connector (51).

3. The pneumatic hose type infrared thermal imaging corrosion detection equipment for the inner wall of a hydraulic cylinder according to claim 2, wherein: The detection component includes a probe module housing (55) fixedly installed at the end of the connector (51). An ultrasonic positioning probe (52) and an infrared thermal imaging probe (53) are arranged in the probe module housing (55). The ultrasonic positioning probe (52) and the infrared thermal imaging probe (53) are respectively connected to a data transmission line (54), and the data transmission line (54) extends out of the hydraulic cylinder (6) along the pneumatic fiber hose (4).

4. The pneumatic hose type infrared thermal imaging corrosion detection equipment for the inner wall of a hydraulic cylinder according to claim 3, wherein: The infrared thermal imaging probe (53) is arranged at one end of the probe module housing (55) far from the connector (51), and the ultrasonic positioning probe (52) is arranged at one end of the probe module housing (55) close to the connector (51).

5. The pneumatic hose type infrared thermal imaging corrosion detection equipment for the inner wall of a hydraulic cylinder according to claim 3, characterized in that: The number of the pneumatic hoses (41) are wound around and attached to the outside of the data transmission line (54).

6. The pneumatic hose type infrared thermal imaging corrosion detection equipment for the inner wall of the hydraulic cylinder according to claim 1, characterized in that: The control component includes a T-shaped three-way ball valve (2) arranged at the inlet of the hydraulic cylinder (6). A base (1) communicated with the pneumatic hose (41) is arranged on the T-shaped three-way ball valve (2), and the infrared thermal imaging probe module (5) passes through the T-shaped three-way ball valve (2) from the base (1) and enters the hydraulic cylinder (6).

7. The pneumatic hose type infrared thermal imaging hydraulic cylinder inner wall corrosion detection equipment according to claim 6, characterized in that: A pneumatic actuator (3) for controlling the opening and closing of the T-shaped three-way ball valve (2) is arranged on the T-shaped three-way ball valve (2).

8. The pneumatic hose type infrared thermal imaging corrosion detection equipment for the inner wall of a hydraulic cylinder according to claim 6, characterized in that: A hydraulic cylinder piston rod (7) is arranged in the hydraulic cylinder (6), and the infrared thermal imaging probe module (5) is arranged corresponding to the hydraulic cylinder piston rod (7).

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