Furnace tube crack detection device for converter

Abstract

The utility model discloses a reformer furnace tube crack detection device, and relates to the technical field of furnace tube crack detection devices.The reformer furnace tube crack detection device comprises a fixing plate, the upper end and the lower end of the inner wall of the fixing plate are fixedly connected with first connecting shafts, and the positions, close to the edges, of the adjacent sides of the outer walls of the two first connecting shafts are fixedly connected with mounting plates; rotating wheels are rotatably connected to the middles of the outer walls of the first connecting shafts, threaded shafts are in threaded connection to the inner walls of the multiple mounting plates, the right sides of the threaded shafts are fixed to the inner wall of the right mounting plate, and second connecting shafts are slidably connected to the upper ends and the lower ends of the inner walls of the mounting plates correspondingly; crawling devices are slidably connected between the adjacent outer walls of the mounting plates on the right side. According to the pipeline climbing device, the first connecting shafts are fixed to the upper end and the lower end of the inner wall of the fixing plate, the rotating wheel is fixed to the middle of the outer wall of the first connecting shaft on the left side, and therefore the pipeline climbing device can be tightly attached to the outer wall of a pipeline, the climbing stability is guaranteed, and use requirements are met.

Description

TECHNICAL FIELD

[0001] The utility model relates to furnace tube crack detection device technical field especially relates to a converter furnace tube crack detection device. BACKGROUND

[0002] In chemical, energy industry production, the converter plays a vital role, for example, the process of taking hydrogen gas by light hydrocarbon steam conversion and ammonia raw material gas synthesis by methanol raw material gas, the converter is the core equipment of the whole process, and the furnace tube in it is the key component, which continuously runs under the extremely harsh conditions of high temperature, medium pressure and hydrogen, in general, the furnace tube needs to withstand the flame radiation of more than one thousand degrees, and the highest pipe wall temperature often exceeds eight hundred degrees, at the same time, it also needs to cope with the medium pressure environment and the corrosion of hydrogen caused by internal reaction gas, under such harsh working conditions for a long time, the furnace tube is prone to crack defects, in actual production, once the converter fails due to furnace tube crack, it will cause serious consequences, in 2018, the converter of a petrochemical enterprise broke due to furnace tube crack, reaction gas leaked and caused explosion, not only causing huge economic loss, but also causing serious pollution to the surrounding environment and injuring many operators, similar accidents occur frequently, highlighting the urgency of accurate and efficient detection of converter furnace tube crack.

[0003] The furnace tube crack detection device on the market at present is mainly composed of a sensor component and a signal transmission component, the traditional converter furnace tube crack detection method has many limitations, naked eye detection depends on the experience and vision of the detection personnel, and only the relatively obvious cracks on the surface of the furnace tube can be found, and it is helpless for the small cracks hidden inside, by using naked eye detection, although some furnace tubes with obvious cracking signs on the surface can be detected, but when more precise detection means is used, it is found that a large number of furnace tubes have different degrees of micro-cracks inside, these micro-cracks are completely ignored in naked eye detection, and the current nondestructive testing technology such as ray detection can detect the position and size of the pipe crack by propagating ultrasonic signals in the pipe, but the equipment is large in size, complex in operation, harmful to the human body, and the detection process needs strict protection, which greatly limits its application in the field, for example, in some limited space converter maintenance sites, the ray detection equipment is difficult to operate, the ultrasonic detection has high technical requirements for the detection personnel, and the judgment of the detection results by different detection personnel may have great difference, and due to the structure and material characteristics of the furnace tube, the ultrasonic signal is easily disturbed in the propagation process, resulting in inaccurate positioning and quantitative analysis of the cracks. UTILITY MODEL CONTENTS

[0004] In order to make up for the above shortcomings, the utility model provides a converter furnace tube crack detection device, which aims at improving the problem of traditional furnace tube crack detection device being not light and quick to disassemble and install in the prior art.

[0005] In order to achieve the above object, the utility model discloses the following technical scheme: a converter furnace tube crack detection device, including fixed plate, the inner wall of fixed plate upper and lower end all are fixedly connected with connecting shaft no.

[0006] As a further description of the above technical scheme:

[0007] The outer wall top of the crawling device is fixedly connected with a handle, and the outer wall of the handle is fixedly connected with an antiskid sleeve.

[0008] As a further description of the above technical scheme:

[0009] The outer wall of the crawling device is fixedly connected with a protective strip on the front and rear sides, and the outer wall of the crawling device is fixedly connected with a protective pad near the edge on the front and rear sides.

[0010] As a further description of the above technical scheme:

[0011] The outer wall bottom right side of the crawling device is fixedly connected with a motor, and the outer wall left side of the two mounting plates is fixedly connected with a fixed frame.

[0012] As a further description of the above technical scheme:

[0013] The outer wall middle part of the threaded shaft is threadedly connected with a threaded sleeve.

[0014] As a further description of the above technical scheme:

[0015] The outer wall bottom right side of the crawling device is fixedly connected with a protective plate.

[0016] As a further description of the above technical scheme:

[0017] The outer wall near the right side of the threaded shaft is threadedly connected with a hexagon nut.

[0018] As a further description of the above technical scheme:

[0019] The top front and rear sides of the crawling device are fixedly connected with a soft pad.

[0020] The utility model has the following beneficial effects:

[0021] 1. In the utility model, the connecting shaft one is fixed on the inner wall of the fixed plate, the rotating wheel is fixed on the outer wall middle part of the left connecting shaft one, the crawler belt installed on the inner wall of the right crawling device can rotate under the drive of the motor, the crawler belt can cooperate with the plurality of rotating wheels on the left side to move on the pipeline, the threaded shaft connected with the inner wall of the fixed plate can rotate through the thread, realizes the adjacent side of the left and right fixed plates to move and clamps, so that it can be closely attached to the outer wall of the pipeline, guarantees the stability of the crawling, satisfies the use demand. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 A fixed plate front side perspective view of the converter furnace tube crack detection device is provided for the utility model;

[0023] Figure 2 A rotating wheel structure diagram of the converter furnace tube crack detection device is provided for the utility model;

[0024] Figure 3 A threaded shaft local structure diagram of the converter furnace tube crack detection device is provided for the utility model;

[0025] Figure 4 An installation plate structure display diagram of the converter furnace tube crack detection device is provided for the utility model;

[0026] Figure 5 A furnace tube structure schematic diagram of the converter furnace tube crack detection device is provided for the utility model.

[0027] LEGEND:

[0028] 1, fixed plate, 2, connecting shaft one, 3, installation plate, 4, rotating wheel, 5, threaded shaft, 6, connecting shaft two, 7, crawling device, 8, crawler belt, 9, furnace tube, 10, probe tile, 11, installation groove, 12, motor, 13, protection plate, 14, protection pad, 15, protection strip, 16, soft pad, 17, threaded sleeve, 18, hexagon nut, 19, handle, 20, anti-skid sleeve, 21, fixed frame. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0030] Please refer to the drawingsFigure 1 - the Figure 3 The utility model provides a kind of converter furnace tube crack detection device in an embodiment provided by the utility model: a fixed plate 1, the inner wall of fixed plate 1 is fixedly connected with connecting shaft one 2 in upper and lower ends, the outer wall adjacent side of two connecting shaftes one 2 is fixedly connected with mounting plate 3 near edge, the outer wall middle part of connecting shaft one 2 is rotatably connected with rotating wheel 4, the inner wall of multiple mounting plates 3 is threadedly connected with threaded shaft 5, the right side of threaded shaft 5 is fixed in the inner wall of right side mounting plate 3, the inner wall of mounting plate 3 is slidably connected with connecting shaft two 6 in upper and lower ends, and the inner wall of right side mounting plate 3 is fixed on the right side of threaded shaft 5, to increase the flexibility of structure, the inner wall of each mounting plate 3 is designed as can slidably connect connecting shaft two 6 in upper and lower ends, the outer wall adjacent between right side mounting plate 3 is slidably connected with crawling device 7, the inner wall left side of crawling device 7 is provided with track 8, and the outer wall right side bottom of crawling device 7 is installed with furnace tube 9, and the outer wall front and back sides of furnace tube 9 are fixedly connected with probe tile 10, and the outer wall front and back sides of probe tile 10 are provided with mounting groove 11;

[0031] Specifically, the inner wall of fixed plate 1 is fixedly connected with connecting shaft one 2 in upper and lower ends, the outer wall of two connecting shaftes one 2 is fixedly connected with mounting plate 3 on the adjacent side near edge, and the outer wall middle part of each connecting shaft one 2 can rotatably connect a rotating wheel 4, the inner wall of multiple mounting plates 3 is fixed with threaded shaft 5 by screw connection, the crawling device 7 is slidably connected between the outer wall adjacent of right side mounting plate 3, in order to improve the grip of crawling device 7, the inner wall left side is specially provided with track 8, and the outer wall right side bottom of crawling device 7 is installed with furnace tube 9, and the outer wall front and back sides of furnace tube 9 are fixedly connected with probe tile 10, in order to facilitate installation and maintenance, the outer wall front and back sides of each probe tile 10 are provided with mounting groove 11.

[0032] Please refer to the attached Figure 4 - the Figure 5 The outer wall top of crawling device 7 is fixedly connected with handle 19, the outer wall of handle 19 is fixedly connected with antiskid sleeve 20, the outer wall front and back sides of crawling device 7 are fixedly connected with protective strip 15, the outer wall front and back sides of crawling device 7 are fixedly connected with protective pad 14 near edge, in order to protect the edge of device, the outer wall front and back sides of crawling device 7 are fixedly connected with soft protective pad 14 near edge, these protective pads 14 can effectively absorb impact, prevent damage when scratching or colliding on hard object, the outer wall bottom right side of crawling device 7 is fixedly connected with motor 12, the outer wall left side of two mounting plates 3 is fixedly connected with fixed frame 21, the outer wall middle part of threaded shaft 5 is threadedly connected with threaded sleeve 17;

[0033] Specifically, a practical handle 19 is fixedly connected to the outer wall of the crawling device 7, so that the user can conveniently carry and operate, in order to increase the comfort and safety when holding, the outer wall of the handle 19 is also specially fixedly connected with an anti-skid sleeve 20, in addition, in order to protect the crawling device 7 from being damaged during use, the outer wall of the crawling device 7 is fixedly connected with a sturdy protective strip 15 on the front and rear sides, in order to drive the movement of the crawling device 7, a motor 12 is fixedly connected to the outer wall of the bottom right side of the crawling device 7, which is responsible for providing power, the outer wall of the left side of the two mounting plates 3 is fixedly connected with a stable fixing frame 21 to ensure the stability and durability of the device, finally, in order to realize the adjustment function, a precise threaded sleeve 17 is threadedly connected to the middle of the outer wall of the threaded shaft 5, and the fine adjustment of the device can be realized by rotating the threaded sleeve 17.

[0034] Please refer to the attached Figure 1 - attached Figure 3 , the outer wall of the bottom right side of the crawling device 7 is fixedly connected with a protective plate 13, the outer wall of the threaded shaft 5 is threadedly connected with a hexagonal nut 18 near the right side, and the top of the crawling device 7 is fixedly connected with a soft pad 16 on the front and rear sides;

[0035] Specifically, a protective plate 13 is fixedly connected to the outer wall of the bottom right side of the crawling device 7, which can effectively protect the outer wall of the crawling device 7 from being damaged, at the same time, in order to ensure the stability and reliability of the crawling device 7, a hexagonal nut 18 is threadedly connected to the outer wall of the threaded shaft 5 near the right side, which can provide stronger fixing effect, in addition, in order to improve the comfort and safety of the crawling device 7, soft pads 16 are fixedly connected to the top of the crawling device 7 on the front and rear sides, which can provide better support and cushioning for the user, thereby reducing the discomfort during use.

[0036] Working principle: the connecting shaft one 2 is fixed to the inner wall of the fixed plate 1 at the upper and lower ends, and the rotating wheel 4 is fixed to the outer wall of the connecting shaft one 2 at the middle of the left side, while the crawler belt 8 installed in the right side crawling device 7 can rotate under the drive of the motor 12, so that the crawler belt 8 can cooperate with the multiple rotating wheels 4 on the left side to move and crawl on the pipeline, and the threaded shaft 5 is threadedly connected to the inner wall of the fixed plate 1, which can realize the movement of the adjacent side of the left and right fixed plates 1 by rotating the threads, so that it can tightly fit the outer wall of the pipeline, ensuring the stability of the crawling and meeting the use requirements.

[0037] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application has been described in detail, for the skilled in the art, it still can be modified, or for part of the technical features of the equivalent replacement, the spirit and principles of the present application, made any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. A device for detecting cracks in a furnace tube of a reformer, comprising a fixing plate (1), characterized in that: The inner wall of the fixed plate (1) is fixedly connected with a connecting shaft one (2) at the upper end and the lower end, the outer wall of two connecting shaft ones (2) is fixedly connected with an installation plate (3) near the edge of the adjacent side, the outer wall of the connecting shaft one (2) is rotatably connected with a rotating wheel (4) at the middle part, the inner wall of a plurality of installation plates (3) is screwedly connected with a threaded shaft (5), the right side of the threaded shaft (5) is fixedly connected with the inner wall of the right installation plate (3), the inner wall of the installation plate (3) is slidably connected with a connecting shaft two (6) at the upper end and the lower end, the outer wall of the right installation plate (3) is slidably connected with a crawling device (7) between the adjacent sides, the inner wall of the crawling device (7) is provided with a track (8) at the left side, the outer wall of the crawling device (7) is provided with a furnace pipe (9) at the bottom of the right side, the outer wall of the furnace pipe (9) is fixedly connected with a probe tile (10) at the front side and the rear side, and the outer wall of the probe tile (10) is provided with an installation groove (11) at the front side and the rear side.

2. A device for detecting cracks in a furnace tube of a reformer according to claim 1, characterized in that: The outer wall of the handle (19) is fixedly connected with an anti-skid sleeve (20).

3. The device for detecting cracks in a furnace tube of a reformer according to claim 1, characterized by: The outer wall of the crawling device (7) is fixedly connected with a protection strip (15) at the front side and the rear side, and the outer wall of the crawling device (7) is fixedly connected with a protection pad (14) near the edge of the front side and the rear side.

4. The device for detecting cracks in a furnace tube of a reformer according to claim 1, characterized by: The outer wall of the crawling device (7) is fixedly connected with a motor (12) at the bottom of the right side, and the outer wall of two installation plates (3) is fixedly connected with a fixing frame (21) at the left side.

5. The device for detecting cracks in a furnace tube of a reformer according to claim 1, characterized by: The outer wall of the threaded shaft (5) is screwedly connected with a threaded sleeve (17) at the middle part.

6. The device for detecting cracks in a furnace tube of a reformer according to claim 1, characterized by: The outer wall of the crawling device (7) is fixedly connected with a protection plate (13) at the bottom of the right side.

7. The device for detecting cracks in a furnace tube of a reformer according to claim 1, characterized by: The outer wall of the threaded shaft (5) is screwedly connected with a hexagon nut (18) near the right side.

8. The device for detecting cracks in a furnace tube of a reformer according to claim 1, characterized by: The top of the crawling device (7) is fixedly connected with a soft pad (16) at the front side and the rear side.

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