Steam leak detection equipment

Abstract

The present invention discloses a steam leakage detection device, including a control system and a laser irradiation system, a camera tracking system, a rotation system and a feedback system controlled by the control system; wherein the rotation system is used to drive the laser irradiation system and the camera tracking system to rotate in multiple directions at the same time; the laser irradiation system is used to perform laser scanning on the environment where the device is located; the camera tracking system is used to collect images of the laser scanning area; the control system is used to perform steam leakage detection and identification on the image data fed back by the camera tracking system; the feedback system is used to intuitively display the steam leakage detection results fed back by the control system. The steam leakage detection device provided by the present invention is suitable for complex industrial production environments, and can realize multi-angle and large-range effective detection of steam leakage in dark environments or under different lighting environments, which helps to improve the safety of industrial production environments, and has the characteristics of low detection cost and convenient deployment.

Description

Technical Field

[0001] The present invention relates to the technical field of steam leakage detection, and in particular to a steam leakage detection device. Background Art

[0002] During the manufacturing process of power plants and steel mills, the safety, reliability and economy of the production environment are issues of concern to all major manufacturers. Often, there will be signs of major safety accidents in production equipment before they occur, especially in industrial manufacturing plants with many pipelines, valves and interfaces. Steam leaks will occur in production equipment, which may affect industrial production and cause economic losses, or even cause environmental pollution, fire and explosion and other safety accidents. However, since the amount of steam leakage from production equipment is small at the beginning, or the leakage occurs when the production equipment is in a dimly lit place, traditional steam leakage detection methods are difficult to meet the requirements of rapid detection. Therefore, how to promptly and sensitively detect steam leakage in the production process is a technical problem to be solved by the present invention. Summary of the invention

[0003] The present invention provides a steam leakage detection device to solve one or more technical problems existing in the prior art and at least provide a beneficial choice or create conditions.

[0004] An embodiment of the present invention provides a steam leak detection device, the device comprising a laser irradiation system, a camera tracking system, a rotation system and a control system, and the laser irradiation system, the camera tracking system and the rotation system are all controlled by the control system;

[0005] The rotation system is used to drive the laser irradiation system and the camera tracking system to rotate in multiple directions at the same time; the laser irradiation system is used to perform laser scanning on the environment in which the equipment is located; the camera tracking system is used to capture images of the laser scanning area; based on the formation of a light path due to the Tyndall effect when the laser irradiates steam, the control system is used to identify the light path of the image data fed back by the camera tracking system to obtain the steam leakage detection result.

[0006] Further, the rotating system comprises a supporting base, a first rotating bracket, a first rotating shaft and a first steering gear;

[0007] The first servo is arranged on the top inner wall of the support base, one end of the first rotating shaft is connected to the bottom of the first rotating bracket, and the other end of the first rotating shaft passes through the top of the support base and is connected to the first servo, and the first servo is used to control the first rotating bracket to rotate horizontally around the first rotating shaft relative to the support base.

[0008] Furthermore, the rotation system also includes a second rotating bracket, a second servo and a third servo, the second servo is arranged on the first side outer wall of the first rotating bracket, the bottom outer wall of the second rotating bracket is connected to the bottom inner wall of the first rotating bracket, and the third servo is arranged on the first side outer wall of the second rotating bracket.

[0009] Further, the laser irradiation system includes a first housing and a laser light assembly;

[0010] The rotation system also includes a second rotating shaft, one end of the second rotating shaft passes through the first side surface of the first rotating bracket and is connected to the second servo, and the other end of the second rotating shaft passes through the first shell and is connected to the second side surface of the first rotating bracket, and the second servo is used to control the first shell to rotate vertically around the second rotating shaft relative to the first rotating bracket; the laser light assembly is embedded and installed on the outer surface of the first shell.

[0011] Further, the camera tracking system includes a second housing and a high-definition camera;

[0012] The rotation system also includes a third rotating shaft, one end of the third rotating shaft passes through the first side surface of the second rotating bracket and is connected to the third servo, and the other end of the third rotating shaft passes through the second shell and is connected to the second side surface of the second rotating bracket, and the third servo is used to control the second shell to rotate vertically around the third rotating shaft relative to the second rotating bracket; the high-definition camera is embedded in the outer surface of the second shell.

[0013] Further, the control system includes a Raspberry Pi controller, and the Raspberry Pi controller is arranged inside the support base;

[0014] The Raspberry Pi controller is used to analyze and identify the image data collected by the high-definition camera through a pre-deployed trained neural network model to obtain a steam leakage detection result;

[0015] The Raspberry Pi controller is also used to control the first steering gear to rotate and control the second steering gear and the third steering gear to rotate synchronously in the same direction;

[0016] The Raspberry Pi controller is also used to bundle the image data transmitted by the high-definition camera with the corresponding servo rotation information during its acquisition, wherein the servo rotation information includes the rotation angle of the first servo, the rotation angle of the second servo and the rotation angle of the third servo.

[0017] Furthermore, the device also includes a feedback system, which is controlled by the control system and is used to intuitively display the steam leakage detection results fed back by the control system.

[0018] Furthermore, the feedback system includes a display screen; when there is steam leakage in the environment where the equipment is located, the display screen is used to display the image data of the steam leakage area that has been framed and fed back by the control system and the location information of the steam leakage area in the environment where the equipment is located.

[0019] Furthermore, the feedback system also includes a three-color light; when there is no steam leakage in the environment where the equipment is located, the three-color light displays green under the action of the control system; when there is steam leakage in the environment where the equipment is located, the three-color light displays red under the action of the control system; when a self-test abnormality occurs when the equipment is started, the three-color light displays yellow under the action of the control system.

[0020] The present invention has at least the following beneficial effects: based on the characteristic that laser irradiation of steam can produce the Tyndall effect and thus form an optical path, a rotating system is set up to drive the laser irradiation system to perform an all-round laser scan of the environment in which the equipment is located, and to drive the camera tracking system to collect images of the laser scanning area, and then a control system is set up to extract the steam leakage area from the collected image data to facilitate on-site operators to conduct inspections and repairs, thereby achieving multi-angle and large-scale effective detection of steam leakage in a dark environment or under different lighting environments. By deploying a trained neural network model in advance in the control system for image analysis and recognition, the disadvantage of insufficient detection speed existing in traditional steam leakage detection methods can be overcome. The steam leakage detection equipment provided by the present invention is suitable for complex industrial production environments, will not be affected by the disordered and overlapping distribution of pipelines, and will help to improve the safety of the industrial production environment, and has the characteristics of low detection cost and convenient deployment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings are used to provide a further understanding of the technical solution of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the technical solution of the present invention and do not constitute a limitation to the technical solution of the present invention.

[0022] Figure 1 is a front structural schematic diagram of a steam leakage detection device in an embodiment of the present invention;

[0023] Figure 2 is a schematic side structural diagram of a rotating system in an embodiment of the present invention;

[0024] Figure 3 It is a schematic diagram of the side structure of the second rotating bracket in an embodiment of the present invention.

[0025] Figure numerals: 100, support base, 110, first rotating bracket, 120, first servo, 130, second servo, 140, second rotating bracket, 150, third servo, 200, first shell, 210, laser light assembly, 300, second shell, 310, high-definition camera, 400, Raspberry Pi controller, 500, display screen, 510, tri-color light, 520, buzzer. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0027] It should be noted that, although the functional modules are divided in the system schematic diagram and the logical order is shown in the flowchart, in some cases, the steps shown or described may be performed in a different order than the module division in the system or the order in the flowchart. The terms "first", "second", etc. in the specification, claims and the above drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0028] Please refer to Figure 1 , Figure 1 It is a front structural schematic diagram of a steam leakage detection device provided in an embodiment of the present invention, wherein the steam leakage detection device comprises a laser irradiation system, a camera tracking system, a rotation system, a control system and a feedback system, and the laser irradiation system, the camera tracking system, the rotation system and the feedback system are all controlled by the control system.

[0029] In an embodiment of the present invention, the rotation system is used to drive the laser irradiation system and the camera tracking system to rotate in multiple directions at the same time. The laser irradiation system is used to perform laser scanning on the environment in which the equipment is located. The camera tracking system is used to capture images of the laser scanning area. When the laser irradiates steam, a light path is formed due to the Tyndall effect. The control system is used to identify the light path of the image data fed back by the camera tracking system to obtain the steam leakage detection result. The feedback system is used to intuitively display the steam leakage detection result fed back by the control system.

[0030] In the embodiment of the present invention, combined with Figure 1 and Figure 2 As shown, the rotating system includes a supporting base 100, a first rotating bracket 110, a first rotating shaft ( Figure 1The first steering gear 120 is arranged on the top inner wall of the support base 100, one end of the first rotating shaft is connected to the bottom of the first rotating bracket 110, and the other end of the first rotating shaft passes through the top of the support base 100 and is connected to the first steering gear 120, and the first steering gear 120 is used to control the first rotating bracket 110 to rotate horizontally around the first rotating shaft relative to the support base 100.

[0031] In the embodiment of the present invention, Figure 1 As shown, the laser irradiation system includes a first shell 200 and a laser light assembly 210. The laser light assembly 210 is embedded and installed on the outer surface of the first shell 200. The laser light assembly 210 is composed of a plurality of laser lights distributed in an array, and the power of the plurality of laser lights is adjustable; preferably, the plurality of laser lights are set in four numbers.

[0032] On this basis, the rotation system further includes a second steering gear 130 and a second rotating shaft ( Figure 1 The second servo 130 is disposed on the outer wall of the first side surface of the first rotating bracket 110, one end of the second rotating shaft passes through the first side surface of the first rotating bracket 110 and is connected to the second servo 130, the other end of the second rotating shaft passes through the first shell 200 and is connected to the second side surface of the first rotating bracket 110, and the second servo 130 is used to control the first shell 200 to rotate vertically relative to the first rotating bracket 110 around the second rotating shaft.

[0033] The first rotating bracket 110 is driven to rotate horizontally relative to the supporting base 100 by the first servo 120, and the first shell 200 is driven to rotate vertically relative to the first rotating bracket 110 by the second servo 130, so that the laser light assembly 210 can perform an all-round scan in the environment where the equipment is located, which helps to detect the steam leakage area.

[0034] In the embodiment of the present invention, combined with Figure 1 and Figure 3 As shown, the camera tracking system includes a second shell 300 and a high-definition camera 310, and the high-definition camera 310 is embedded and installed on the outer surface of the second shell 300; of course, the high-definition camera 310 can also be replaced by an infrared camera for image acquisition.

[0035] On this basis, the rotation system further includes a second rotation bracket 140, a third steering gear 150 and a third rotating shaft ( Figure 1The bottom outer wall of the second rotating bracket 140 is fixedly connected to the bottom inner wall of the first rotating bracket 110 by screws, and the third steering gear 150 is arranged on the first side outer wall of the second rotating bracket 140. One end of the third rotating shaft passes through the first side of the second rotating bracket 140 and is connected to the third steering gear 150. The other end of the third rotating shaft passes through the second shell 300 and is connected to the second side of the second rotating bracket 140. The third steering gear 150 is used to control the second shell 300 to rotate vertically relative to the second rotating bracket 140 around the third rotating shaft.

[0036] The first servo 120 drives the first rotating bracket 110 to rotate horizontally relative to the supporting base 100, and the third servo 150 drives the second shell 300 to rotate vertically relative to the second rotating bracket 140, so that the high-definition camera 310 can take all-round photos in the environment where the equipment is located; more specifically, due to the fixed connection relationship between the first rotating bracket 110 and the second rotating bracket 140, the present invention sets the lamp head orientation of the laser light assembly 210 to be consistent with the lens orientation of the high-definition camera 310, so that the high-definition camera 310 can capture images of the steam leakage area under the detection effect of the laser light assembly 210, wherein the detection effect of the laser light assembly 210 actually refers to the laser emitted by the laser light assembly 210 generating a Tyndall effect in the leaking steam to form a light path.

[0037] In an embodiment of the present invention, the control system includes a Raspberry Pi controller 400, which is arranged inside the support base 100; the Raspberry Pi controller 400 is respectively connected to the first servo 120, the second servo 130 and the third servo 150, and is used to control the first servo 120 to rotate and control the second servo 130 and the third servo 150 to rotate synchronously in the same direction, so that the high-definition camera 310 can track the movement of the laser light assembly 210, and when the laser light assembly 210 scans any area, the high-definition camera 310 can synchronously capture images of the area.

[0038] In an embodiment of the present invention, the Raspberry Pi controller 400 is connected to the high-definition camera 310, and is used to parse and identify the image data collected by the high-definition camera 310 through a pre-deployed trained neural network model to obtain a steam leak detection result; preferably, the neural network model can adopt at least one of the YOLOv5 network model, the Fast R-CNN network model and the YOLObile network model.

[0039] In addition, the Raspberry Pi controller 400 is also used to bundle the image data transmitted by the high-definition camera 310 with the corresponding servo rotation information when it is collected, wherein the servo rotation information includes the rotation angle of the first servo 120, the rotation angle of the second servo 130 and the rotation angle of the third servo 150; in actual application, when the Raspberry Pi controller 400 parses and recognizes that the image data contains a steam leakage area, the location information of the steam leakage area in the environment where the equipment is located can be further confirmed based on the servo rotation information bundled with the image data, so as to facilitate on-site operators to focus on checking the steam leakage area to solve the steam leakage problem.

[0040] In an embodiment of the present invention, the feedback system includes a display screen 500, a three-color light 510 and a buzzer 520, and the display screen 500, the three-color light 510 and the buzzer 520 are respectively connected to the Raspberry Pi controller 400; in actual application, the feedback system can be set adjacent to the rotating system or away from the rotating system, depending on the observation needs of the on-site operators.

[0041] The use process of the display screen 500 includes: when there is a steam leakage in the environment where the device is located, the display screen 500 is used to display the image data of the steam leakage area with a frame selected and the position information of the steam leakage area in the environment where the device is located, which is fed back by the Raspberry Pi controller 400; when there is a steam leakage in the environment where the device is located, the display screen 500 can choose to display the image data without any steam leakage area being framed and fed back by the Raspberry Pi controller 400, or the display screen 500 can also choose not to display the image.

[0042] The use process of the three-color light 510 and the buzzer 520 includes: when there is no steam leakage in the environment where the device is located, the three-color light 510 displays green under the action of the Raspberry Pi controller 400; when there is steam leakage in the environment where the device is located, the three-color light 510 displays red under the action of the Raspberry Pi controller 400, and at the same time, the buzzer 520 makes a sound alarm under the action of the Raspberry Pi controller 400; when a self-test abnormality occurs during device startup, the three-color light 510 displays yellow under the action of the Raspberry Pi controller 400, wherein the device startup self-test task is executed by the Raspberry Pi controller 400 according to the self-test program pre-written by the technician when the device is turned on.

[0043] In an embodiment of the present invention, the device also includes a power supply device, which is used to power the first servo 120, the second servo 130, the third servo 150, the laser light assembly 210, the high-definition camera 310, the Raspberry Pi controller 400, the display screen 500, the tri-color light 510 and the buzzer 520.

[0044] In an embodiment of the present invention, the specific method of using the steam leakage detection device in a powered-on state includes the following:

[0045] Step 1: Start the internal self-check program through the Raspberry Pi controller 400 to detect whether the device has a fault; if so, control the three-color light 510 to display yellow, and wait for the on-site operator to troubleshoot the device; if not, control the three-color light 510 to display green, and then execute step 2;

[0046] Step 2: Control the first servo 120 through the Raspberry Pi controller 400 to drive the laser light assembly 210 and the high-definition camera 310 to rotate horizontally at the same time, control the second servo 130 to drive the laser light assembly 210 to rotate vertically to perform a full range of laser scanning of the environment in which the device is located, and control the third servo 150 to drive the high-definition camera 310 to rotate vertically to collect image data of the laser scanning area;

[0047] Step 3: Determine whether there is a steam leakage area in the collected image data by the Raspberry Pi controller 400; if yes, select the steam leakage area in the image data and transmit the position information of the steam leakage area in the environment of the device to the display screen 500 for display, and control the three-color light 510 to display red and the buzzer 520 to sound an alarm, and then execute step 4; if no, control the three-color light 510 to continuously display green, and return to execute step 2;

[0048] Step 4: Control the laser light assembly 210 and the high-definition camera 310 through the Raspberry Pi controller 400 to always track the steam leakage area. After the on-site operator solves the steam leakage problem in the steam leakage area, control the three-color light 510 to display green and control the buzzer 520 to cancel the alarm, and then return to step 2.

[0049] In the embodiment of the present invention, the steam leakage detection device is not limited to detecting water vapor, but can also detect gases that meet the colloid characteristics.

[0050] Although the description of the present application has been quite detailed and specifically describes several described embodiments, it is not intended to be limited to any of these details or embodiments or any particular embodiment, but should be regarded as providing a broad possible interpretation of these claims by reference to the attached claims, taking into account the prior art, so as to effectively cover the intended scope of the present application. In addition, the above description of the present application is based on the embodiments foreseeable by the inventor, and its purpose is to provide a useful description, and those non-substantial changes to the present application that have not yet been foreseen may still represent equivalent changes to the present application.

Claims

1. A steam leak detection device, characterized in that: The device comprises a laser irradiation system, a camera tracking system, a rotation system and a control system, and the laser irradiation system, the camera tracking system and the rotation system are all controlled by the control system; The rotating system is used to drive the laser irradiation system and the camera tracking system to rotate in multiple directions at the same time; the laser irradiation system is used to perform laser scanning on the environment where the equipment is located; the camera tracking system is used to collect images of the laser scanning area; according to the light path formed due to the Tyndall effect when the laser irradiates the steam, the control system is used to identify the light path of the image data fed back by the camera tracking system to obtain the steam leakage detection result; Wherein, the rotating system comprises a supporting base, a first rotating bracket, a first rotating shaft and a first steering gear; The first steering gear is arranged on the top inner wall of the support base, one end of the first rotating shaft is connected to the bottom of the first rotating bracket, and the other end of the first rotating shaft passes through the top of the support base and is connected to the first steering gear, and the first steering gear is used to control the first rotating bracket to rotate horizontally around the first rotating shaft relative to the support base; Wherein, the rotating system further comprises a second rotating bracket, a second steering gear and a third steering gear, the second steering gear is arranged on the first side outer wall of the first rotating bracket, the bottom outer wall of the second rotating bracket is connected to the bottom inner wall of the first rotating bracket, and the third steering gear is arranged on the first side outer wall of the second rotating bracket; Wherein, the laser irradiation system comprises a first housing and a laser light assembly; The rotating system further comprises a second rotating shaft, one end of the second rotating shaft passes through the first side surface of the first rotating bracket and is connected to the second steering gear, the other end of the second rotating shaft passes through the first shell and is connected to the second side surface of the first rotating bracket, and the second steering gear is used to control the first shell to rotate vertically relative to the first rotating bracket around the second rotating shaft; the laser light assembly is embedded and mounted on the outer surface of the first shell; Wherein, the camera tracking system comprises a second housing and a high-definition camera; The rotation system also includes a third rotating shaft, one end of the third rotating shaft passes through the first side surface of the second rotating bracket and is connected to the third servo, and the other end of the third rotating shaft passes through the second shell and is connected to the second side surface of the second rotating bracket, and the third servo is used to control the second shell to rotate vertically around the third rotating shaft relative to the second rotating bracket; the high-definition camera is embedded in the outer surface of the second shell.

2. The steam leakage detection device according to claim 1, characterized in that: The control system includes a Raspberry Pi controller, and the Raspberry Pi controller is arranged inside the support base; The Raspberry Pi controller is used to analyze and identify the image data collected by the high-definition camera through a pre-deployed trained neural network model to obtain a steam leakage detection result; The Raspberry Pi controller is also used to control the first steering gear to rotate and control the second steering gear and the third steering gear to rotate synchronously in the same direction; The Raspberry Pi controller is also used to bundle the image data transmitted by the high-definition camera with the corresponding servo rotation information during its acquisition, wherein the servo rotation information includes the rotation angle of the first servo, the rotation angle of the second servo and the rotation angle of the third servo.

3. The steam leakage detection device according to claim 1, characterized in that: The device also includes a feedback system, which is controlled by the control system and is used to visually display the steam leakage detection result fed back by the control system.

4. The steam leakage detection device according to claim 3, characterized in that: The feedback system includes a display screen; when there is steam leakage in the environment where the device is located, the display screen is used to display the image data of the steam leakage area that has been framed and fed back by the control system and the location information of the steam leakage area in the environment where the device is located.

5. The steam leakage detection device according to claim 3, characterized in that: The feedback system also includes a three-color light; when there is no steam leakage in the environment where the equipment is located, the three-color light displays green under the action of the control system; when there is steam leakage in the environment where the equipment is located, the three-color light displays red under the action of the control system; when a self-test abnormality occurs when the equipment is started, the three-color light displays yellow under the action of the control system.

Images