An X-ray digital imaging detection device for oxide scale accumulation on heating surface tube elbows of boilers and its application

Abstract

The present invention discloses an X-ray digital imaging detection device for oxide scale accumulation on the elbow of a heating surface tube of a boiler, comprising a front fixing plate, the front fixing plate is connected to a rear fixing plate, the center of the side wall of the front fixing plate is rotatably connected to a front rotating shaft, and the center of the side wall of the rear fixing plate is rotatably connected to a rear rotating shaft; the front fixing plate and the rear fixing plate are located between the front rotating shaft and the rear rotating shaft; a front positioning device is provided between the front fixing plate and the front rotating shaft, and a rear positioning device is provided between the rear fixing plate and the rear rotating shaft; the front rotating shaft and the rear rotating shaft are respectively provided with transmission devices, and the transmission devices are connected to a radiation device and an imaging plate fixing frame matched with the radiation device. The present invention also discloses the application of the above-mentioned X-ray digital imaging detection device for oxide scale accumulation on the elbow of a heating surface tube of a boiler. The above-mentioned device disclosed by the present invention not only has high detection accuracy and high detection effect, but also can detect the heating surface tube of the boiler in multiple directions, with high data stability, and is simple and convenient to operate.

Description

Technical Field

[0001] The invention relates to a digital imaging detection device, and in particular to an X-ray digital imaging detection device for oxide scale accumulation on a boiler heating surface tube elbow and its application. Background Art

[0002] With the rapid development and popularization of X-ray detection technology, X-ray digital imaging detection technology has been widely used in the power industry, aerospace, national defense and military fields with its unique advantages. At present, for the X-ray digital imaging detection technology of oxide scale accumulation on the heating surface tube elbows of boilers, the traditional detection method does not have suitable detection tools to cope with the heavy workload and complex detection environment. It usually relies on manual fixing of X-ray machines and imaging plates for slow detection. This detection method has poor stability and low efficiency.

[0003] At present, there is a lack of a reasonable and scientific inspection tool for X-ray digital imaging inspection of oxide scale accumulation on boiler heating surface tube elbows. During the inspection, both hands are required to use tools such as steel wires or ropes to bind the X-ray machine and the imaging plate separately. This fixing method can neither guarantee the accuracy of the inspection nor be firm and reliable. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide an X-ray digital imaging detection device for oxide scale accumulation on heating surface tube elbows of a boiler and its application.

[0005] The present invention solves the above technical problems through the following technical solutions:

[0006] An X-ray digital imaging detection device for oxide scale accumulation on a heating surface tube elbow of a boiler, comprising a front fixing plate, the front fixing plate being connected to a rear fixing plate, the front fixing plate and the rear fixing plate being used to clamp the heating surface tube of the boiler;

[0007] The center of the side wall of the front fixing plate is rotatably connected to a front rotating shaft, and the center of the side wall of the rear fixing plate is rotatably connected to a rear rotating shaft; the front fixing plate and the rear fixing plate are located between the front rotating shaft and the rear rotating shaft;

[0008] A front positioning device is provided between the front fixing plate and the front rotating shaft, and a rear positioning device is provided between the rear fixing plate and the rear rotating shaft;

[0009] The front rotating shaft and the rear rotating shaft are respectively provided with transmission devices.

[0010] The transmission device corresponding to the front rotating shaft is connected with a radiation device, and the radiation device is used to emit X-rays to detect the heating surface tubes of the boiler;

[0011] The transmission device corresponding to the rear rotating shaft is connected with an imaging plate fixing frame matched with the radiation device.

[0012] Furthermore, the upper end of the plate body of the front fixing plate is provided with two front positioning holes, and the front positioning holes are respectively screwed with positioning bolts, and the rear fixing plate is provided with two rear positioning holes matched with the positioning bolts, and the positioning bolts are respectively screwed with nuts;

[0013] A fixing block is disposed at the lower end of the side wall of the front fixing plate, and a fixing slot matched with the fixing block is disposed on the rear fixing plate.

[0014] Furthermore, the transmission device comprises a transmission motor, the transmission motor is provided with a transmission track, a transmission chain is provided in the transmission track, and the chain is transmission-connected to the transmission motor.

[0015] Furthermore, the radiation device includes a radiation machine fixing frame, the radiation machine fixing frame is connected to a transmission chain, and the radiation machine fixing frame is equipped with a camera.

[0016] Furthermore, the upper end and the lower end of the transmission track are respectively threadedly connected to the corresponding front rotating shaft and the rear rotating shaft through positioning gap bolts, and the positioning gap bolts are threadedly connected with nuts.

[0017] Furthermore, the front fixing plate is rotatably connected to the front rotating shaft via a positioning pin, and the rear fixing plate is rotatably connected to the rear rotating shaft via a positioning pin.

[0018] Furthermore, the front positioning device comprises a front fastening bolt connected to the front rotating shaft, and the front fixing plate is provided with a front positioning circular hole matched with the front fastening bolt;

[0019] The rear positioning device comprises a rear fastening bolt connected to the rear rotating shaft, and the rear fixing plate is provided with a rear positioning circular hole matched with the rear fastening bolt.

[0020] Furthermore, the nut is a flat nut.

[0021] The present invention also discloses the application of the above boiler heating surface tube elbow oxide scale accumulation X-ray digital imaging detection device in detecting boiler heating surface tubes.

[0022] Compared with the prior art, the present invention has the following advantages:

[0023] The present invention discloses an X-ray digital imaging detection device for oxide scale accumulation on the heating surface tube elbows of a boiler. The device effectively solves the technical defects of low detection accuracy, unstable detection data accuracy, time-consuming and labor-intensive detection methods, low detection efficiency, and the need to fix the instrument once for each boiler heating surface tube elbow during the detection process, resulting in a large detection workload.

[0024] The device disclosed in the present invention not only has high detection accuracy and high detection effect, but also can detect boiler heating surface tubes in multiple directions, with small deviation of data detected multiple times and high data stability. At the same time, the operation is simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a schematic diagram of the overall structure of an embodiment of the present invention;

[0026] Figure 2 is a left side view of an embodiment of the present invention;

[0027] Figure 3 It is a right side view of an embodiment of the present invention. DETAILED DESCRIPTION

[0028] The following is a detailed description of an embodiment of the present invention. This embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation method and a specific operation process are given, but the protection scope of the present invention is not limited to the following embodiment.

[0029] like Figure 1-3 As shown, an X-ray digital imaging detection device for oxide scale accumulation on the elbow of a boiler heating surface tube comprises a front fixing plate 1, the front fixing plate 1 is connected to a rear fixing plate 2 (the front fixing plate 1 and the rear fixing plate 2 are made of a steel structure material with high rigidity and strength), and the boiler heating surface tube 9 is tightly clamped between the front fixing plate 1 and the rear fixing plate 2 through the mutual cooperation of the front fixing plate 1 and the rear fixing plate 2. Specifically, two front positioning holes 111 are opened at the upper end of the plate body of the front fixing plate 1, and each of the front positioning holes 111 is screwed with a positioning bolt 11, and two rear positioning holes 23 that cooperate with the positioning bolt 11 are opened at the upper end of the plate body of the rear fixing plate 2. After the positioning bolt 11 is screwed with the front fixing plate 1, it is fastened with a flat nut. At the same time, a strip-shaped fixed block 13 is welded at the lower end of the right side wall of the front fixing plate 1, and a fixed slot 22 that cooperates with the fixed block 13 is opened at the lower end of the left side wall of the corresponding rear fixing plate 2, and the fixed block 13 is inserted into the fixed slot 22.

[0030] A front rotating shaft 3 is rotatably connected at the center of the left side wall of the front fixing plate 1. Specifically, the lower end of the left side wall of the front fixing plate 1 is rotatably connected to the front rotating shaft 3 through a positioning pin 12, and the front rotating shaft 3 can rotate 360 ​​degrees around the front fixing plate 1. At the same time, in order to lock the front rotating shaft 3, a front positioning device is provided below the positioning pin 12, and the front rotating shaft 3 is positioned by the front positioning device to prevent the front rotating shaft 3 from rotating arbitrarily.

[0031] Specifically, the front positioning device includes a front fastening bolt 14 arranged on the front rotating shaft 3, and the corresponding front fixing plate 1 is provided with a front positioning circular hole 141 that cooperates with the front fastening bolt 14. The front fastening bolt 14 is screwed into the front positioning circular hole 141 to position the front rotating shaft 3 on the front fixing plate 1.

[0032] Similarly, a rear rotating shaft 4 is rotatably connected to the center of the right side wall of the rear fixing plate 2. Specifically, the lower end of the right side wall of the rear fixing plate 2 is also rotatably connected to the rear rotating shaft 4 through a positioning pin 12, and the rear rotating shaft 4 can rotate 360 ​​degrees around the rear fixing plate 2. At the same time, in order to lock the rear rotating shaft 4, a rear positioning device is provided below the positioning pin 12, and the rear rotating shaft 4 is positioned by the rear positioning device to prevent the rear rotating shaft 4 from rotating. Specifically, the rear positioning device includes a rear fastening bolt 21 provided on the rear rotating shaft 4, and a rear positioning circular hole 211 that cooperates with the rear fastening bolt 21 is provided on the corresponding rear fixing plate 2. The rear fastening bolt 21 is inserted into the rear positioning circular hole 211 to position the rear rotating shaft 4 on the rear fixing plate 2.

[0033] A transmission device 7 is arranged on the left side of the front rotating shaft 3 , and the transmission device 7 is connected to a radiation device 5 , which can emit X-rays and detect the boiler heating surface tubes 9 using X-rays.

[0034] Specifically, the transmission device 7 includes a transmission motor 71, which is arranged below the front rotating shaft 3. The transmission motor 71 is provided with a transmission track 72 (the transmission track 72 is in a vertical state, and the transmission motor 71 is screwed to the bottom of the transmission track 72). A transmission chain is arranged in the transmission track 72 (the principle of the transmission motor 71 driving the transmission chain is as follows: a driving sprocket is arranged on the transmission motor 71, and a matching driven sprocket is arranged above the transmission track 72. The driving sprocket and the driven sprocket are connected by a chain drive. The transmission motor 71 drives the driving sprocket to rotate, and the corresponding driven sprocket rotates). The radiation device 5 is assembled on the transmission chain. Specifically, the radiation device 5 includes a radiation machine fixing frame 51, which is connected to the transmission chain (the radiation machine fixing frame 51 is connected to the transmission chain by bolts), and a camera 52 is assembled on the radiation machine fixing frame 51, and the camera 52 is aligned to the right.

[0035] The front rotating shaft 3 and the transmission track 72 there are fastened and connected by the positioning gap bolts 8. Specifically, the upper end and the lower end of the transmission track 72 there are respectively screwed to the upper end and the lower end of the front rotating shaft 3 by the positioning gap bolts 8 (the front rotating shaft 3 is provided with a positioning bolt hole 811 that matches the positioning gap bolt 8, and the positioning gap bolt 8 is screwed to the positioning bolt hole 811). The positioning gap bolt 8 is screwed with a flat nut, and the positioning gap bolt 8 is tightened by the flat nut.

[0036] Similarly, the right side of the rear rotating shaft 4 is connected to a similar transmission device 7 , and the transmission device 7 is connected to an imaging plate fixing frame 6 that cooperates with the radiation device 5 (camera 52 ), and the camera 52 is aligned and focused on the imaging plate fixing frame 6 .

[0037] Specifically, the transmission device 7 includes a transmission motor 71, which is arranged below the rear rotating shaft 4. The transmission motor 71 is provided with a transmission track 72 (the transmission track 72 is in a vertical state), and a transmission chain is arranged in the transmission track 72 (the principle of the transmission motor 71 driving the transmission chain is: a driving sprocket is arranged on the transmission motor 71, and a matching driven sprocket is arranged above the transmission track 72. The driving sprocket and the driven sprocket are connected by chain transmission. The motor drives the driving sprocket to rotate, and the corresponding driven sprocket rotates). An imaging plate fixing frame 6 is assembled on the transmission chain (the imaging plate fixing frame 6 is threadedly connected to the transmission chain), and the imaging plate fixing frame 6 is screwed with an imaging plate.

[0038] The rear rotating shaft 4 is fastened to the transmission track 72 there by means of the positioning gap bolts 8. Specifically, the upper and lower ends of the transmission track 72 there are respectively screwed to the upper and lower ends of the rear rotating shaft 4 by means of the positioning gap bolts 8 (the rear rotating shaft 4 is provided with a positioning bolt hole 811 that matches the positioning gap bolt 8, and the positioning gap bolt 8 is screwed to the positioning bolt hole 811). The positioning gap bolt 8 is screwed with a flat nut.

[0039] Installation and testing steps:

[0040] (1) Tighten the boiler heating surface tube 9

[0041] The front fixing plate 1 and the rear fixing plate 2 clamp the boiler heating surface tube 9. Specifically, when a suitable clamping position for the boiler heating surface tube 9 is found, the front fixing plate 1 is clamped on one side of the boiler heating surface tube 9, and the rear fixing plate 2 is clamped on the other side of the boiler heating surface tube 9. Then, the fixing block 13 is inserted into the fixing slot 22. At the same time, the positioning bolt 11 is screwed onto the rear positioning hole 23 on the rear fixing plate 2. The flat nut on the positioning bolt 11 is screwed on to fasten the boiler heating surface tube 9 between the front fixing plate 1 and the rear fixing plate 2.

[0042] (2) Adjust the positions of the front rotating shaft 3, the rear rotating shaft 4, the front fixing plate 1 and the rear fixing plate 2:

[0043] After rotating the front rotating shaft 3 and the rear rotating shaft 4 to adjust the relative positions of the front rotating shaft 3 and the rear rotating shaft 4 and the front fixing plate 1 and the rear fixing plate 2, the front fastening bolt 14 is screwed onto the front fixing plate 1, and at the same time, the rear fastening bolt 21 is screwed onto the rear fixing plate 2. Through the above operations, the front rotating shaft 3 and the rear rotating shaft 4 are positioned.

[0044] (3) The transmission track 72 is mounted on the front rotating shaft 3 and the rear rotating shaft 4:

[0045] The positioning gap bolts 8 at the top and bottom of the front rotating shaft 3 are screwed onto the transmission rail 72 in sequence to position the transmission rail 72 on the front rotating shaft 3 . Similarly, the other transmission rail 72 is positioned on the rear rotating shaft 4 .

[0046] (4) Imaging detection:

[0047] The opening and closing of the transmission motor 71 are controlled so that the X-ray machine fixed on the X-ray machine fixing frame 51 and the imaging plate fixed on the imaging plate fixing frame 6 can reach the front and rear of each elbow of the boiler heating surface tube 9. At the same time, more precise positioning is performed according to the image taken by the camera 52, and then X-ray digital imaging detection is performed on the oxide scale accumulated in the elbow.

[0048] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An X-ray digital imaging detection device for oxide scale accumulation on heating surface tube elbows of boilers, characterized in that: It includes a front fixing plate, the front fixing plate is connected to a rear fixing plate, and the front fixing plate and the rear fixing plate are used to clamp the boiler heating surface tube; The center of the side wall of the front fixing plate is rotatably connected to a front rotating shaft, and the center of the side wall of the rear fixing plate is rotatably connected to a rear rotating shaft; the front fixing plate and the rear fixing plate are located between the front rotating shaft and the rear rotating shaft; A front positioning device is provided between the front fixing plate and the front rotating shaft, and a rear positioning device is provided between the rear fixing plate and the rear rotating shaft; The front positioning device is used to position the front rotation axis, and the rear positioning device is used to position the rear rotation axis; The front rotating shaft and the rear rotating shaft are respectively provided with transmission devices; The transmission device comprises a transmission motor, the transmission motor is provided with a transmission track, a transmission chain is provided in the transmission track, a driving sprocket is provided on the transmission motor, a matched driven sprocket is provided above the transmission track, and the driving sprocket and the driven sprocket are connected by chain transmission; The upper end and the lower end of the transmission track are respectively screwed to the corresponding front rotating shaft and the rear rotating shaft through positioning gap bolts; The transmission device corresponding to the front rotating shaft is connected with a radiation device, and the radiation device is used to emit X-rays to detect the heating surface tubes of the boiler; The transmission device corresponding to the rear rotating shaft is connected to an imaging plate fixing frame matched with the radiation device, and the imaging plate fixing frame is connected to an imaging plate.

2. The X-ray digital imaging detection device for oxide scale accumulation on heating surface tube elbows of a boiler according to claim 1 is characterized in that: The upper end of the plate body of the front fixing plate is provided with two front positioning holes, and the front positioning holes are respectively screwed with positioning bolts. The rear fixing plate is provided with two rear positioning holes matched with the positioning bolts, and the positioning bolts are respectively screwed with nuts.

3. The X-ray digital imaging detection device for oxide scale accumulation on heating surface tube elbows of a boiler according to claim 1, characterized in that: The transmission device comprises a transmission motor, the transmission motor is provided with a transmission track, a transmission chain is provided in the transmission track, and the chain is transmission-connected to the transmission motor.

4. The X-ray digital imaging detection device for oxide scale accumulation on heating surface tube elbows of a boiler according to claim 3 is characterized in that: The radiation device comprises a radiation machine fixing frame, the radiation machine fixing frame is connected to a transmission chain, and the radiation machine fixing frame is equipped with a camera.

5. The X-ray digital imaging detection device for oxide scale accumulation on heating surface tube elbows of a boiler according to claim 3, characterized in that: The upper end and the lower end of the transmission track are respectively threadedly connected to the corresponding front rotating shaft and the rear rotating shaft through positioning gap bolts, and the positioning gap bolts are threadedly connected with nuts.

6. The X-ray digital imaging detection device for oxide scale accumulation on heating surface tube elbows of a boiler according to claim 1, characterized in that: The front fixing plate is rotatably connected to the front rotating shaft via a positioning pin, and the rear fixing plate is rotatably connected to the rear rotating shaft via a positioning pin.

7. The X-ray digital imaging detection device for oxide scale accumulation on heating surface tube elbows of a boiler according to claim 1, characterized in that: The front positioning device comprises a front fastening bolt connected to the front rotating shaft, and the front fixing plate is provided with a front positioning circular hole matched with the front fastening bolt; The rear positioning device comprises a rear fastening bolt connected to the rear rotating shaft, and the rear fixing plate is provided with a rear positioning circular hole matched with the rear fastening bolt.

8. The X-ray digital imaging detection device for oxide scale accumulation on heating surface tube elbows of a boiler according to claim 2, characterized in that: The nut is a flat nut.

9. Use of the boiler heating surface tube elbow oxide scale deposition X-ray digital imaging detection device as claimed in any one of claims 1 to 8 in detecting boiler heating surface tubes.

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