Boiler pressure vessel inner wall defect detection device

Abstract

The invention discloses a boiler pressure vessel inner wall defect detection device which comprises a boiler pressure vessel tank, water inlet pipes are installed on the two sides of the top of the boiler pressure vessel tank, a cover plate is placed on the water inlet pipe on the left side, a mounting rod is welded to the bottom of the cover plate, and a hinge seat is welded to the bottom of the mounting rod. A base is hinged to one side of the hinge seat, a push rod motor is fixedly mounted on the base through bolts, and a mounting plate is mounted at the output end of the push rod motor. According to the boiler pressure vessel inner wall defect detection device, the installation rod, the push rod motor, the pull rope and the like are arranged, the output end of the electric telescopic rod can drive the defect detection camera to detect the inner wall of the boiler pressure vessel, and the PLC, the push rod motor, the defect detection camera and the like are arranged; the corresponding defect position of the inner wall of the boiler pressure vessel can be judged according to the extending distance of the output end of the push rod motor, and related personnel can conveniently carry out further treatment.

Description

Technical Field

[0001] The invention relates to the technical field of boiler pressure vessel inner wall detection, in particular to a boiler pressure vessel inner wall defect detection device. Background Art

[0002] Boiler pressure vessel is the full name of boiler and pressure vessel. Because they are both special equipment, they occupy a very important position in production and life. Boiler is a mechanical equipment that uses the thermal energy of fuel or other energy to heat water into hot water or steam. The original meaning of pot refers to a water container heated on fire, and furnace refers to a place where fuel is burned. The boiler consists of two major parts: pot and furnace. The hot water or steam generated in the boiler can directly provide the required thermal energy for industrial production and people's life, and can also be converted into mechanical energy through a steam power device, or then converted into electrical energy through a generator. The boiler that provides hot water is called a hot water boiler, which is mainly used for life and also has a small number of applications in industrial production. The boiler that generates steam is called a steam boiler, often referred to as a boiler, and is mostly used in thermal power plants, ships, locomotives and industrial and mining enterprises.

[0003] Since boiler pressure vessels are mostly used to hold water, in order to prevent leakage of boiler pressure vessels, it is necessary to inspect the inner wall of the boiler pressure vessel, and at the same time, it is also necessary to inspect other defects of the inner wall of the boiler pressure vessel, such as rust, corrosion, cracks, etc., but since the inlet and outlet of some boiler pressure vessels are small and the internal space of the boiler pressure vessel is large, it is very inconvenient to detect the internal defects of the boiler pressure vessel, and when the internal is inspected by relevant instruments, when defects are detected, it cannot be ensured that the defects are located at the specific position of the inner wall of the boiler pressure vessel. For this reason, we propose a boiler pressure vessel inner wall defect detection device to solve the above problems. Summary of the invention

[0004] The purpose of the present invention is to provide a boiler pressure vessel inner wall defect detection device to solve the problems raised in the background technology in view of the shortcomings of the prior art.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a boiler pressure vessel inner wall defect detection device, comprising a boiler pressure vessel tank, water inlet pipes are installed on both sides of the top of the boiler pressure vessel tank, a cover plate is placed on the water inlet pipe on the left side, a mounting rod is welded to the bottom of the cover plate, a hinge seat is welded to the bottom of the mounting rod, a base is hinged to one side of the hinge seat, a push rod motor is fixedly installed on the base by bolts, a mounting plate is installed on the output end of the push rod motor, a plurality of electric telescopic rods are arranged on the outer ring of the mounting plate, a defect detection camera is installed on the output end of the electric telescopic rod, a fixing plate is fixedly installed on the outer ring of one side of the push rod motor, a fixing ring is fixedly installed on the fixing plate, a pull rope passing through the cover plate is installed on the fixing ring, and a PLC controller is fixedly installed on one side of the top surface of the cover plate.

[0006] As a preferred technical solution of the present invention, two support plates are welded on one side of the top surface of the cover plate, and a rotating shaft is rotatably connected to the upper part of the two support plates close to each other, and the right end of the rotating shaft passes through the right support plate.

[0007] As a preferred technical solution of the present invention, a transmission box is fixedly installed on the right side of the support plate on the right side, the right end of the rotating shaft passes through one end of the right support plate and extends to the interior of the transmission box, and a worm gear is installed on the end of the rotating shaft located inside the transmission box.

[0008] As a preferred technical solution of the present invention, the transmission box is a box body made of metal, and a worm is rotatably connected to the inner wall of one side of the transmission box and penetrates and extends to the outside of the transmission box. The worm is meshed with a worm wheel, and a handwheel is installed on one end of the worm that penetrates and extends to the outside of the transmission box.

[0009] As a preferred technical solution of the present invention, the outer ring of the rotating shaft located on the side where the two support plates are close to each other is equipped with a rotating roller, the end of the pull rope away from the fixed ring is fixedly installed on the rotating roller, and the pull rope is wrapped around the outer ring of the rotating roller.

[0010] As a preferred technical solution of the present invention, the PLC controller installed on the top of the cover plate is electrically connected to the push rod motor and the electric telescopic rod, that is, the push rod motor and the electric telescopic rod can be controlled by the PLC controller.

[0011] As a preferred technical solution of the present invention, a lighting lamp is installed on the side of the mounting plate away from the push rod motor, and the outer circle of the mounting plate is evenly provided with multiple groups of mounting grooves, and the electric telescopic rod is installed in the mounting grooves provided in the outer circle of the mounting plate.

[0012] As a preferred technical solution of the present invention, two grooves are opened in the middle of the left side of the base, and the two grooves opened in the middle of the left side of the base are both L-shaped, the hinge seat is U-shaped, and the two sides of the U-shaped hinge seat are respectively inserted into the two grooves opened in the middle of the left side of the base, and the two sides of the hinge seat are rotatably connected in the two grooves opened in the middle of the left side of the base.

[0013] As a preferred technical solution of the present invention, a flange is installed on the upper outer ring of the water inlet pipe, and multiple groups of through holes are opened on the flange installed on the upper outer ring of the water inlet pipe, and a limit block corresponding to the through holes opened on the flange installed on the upper outer ring of the water inlet pipe is welded to the bottom of the cover plate, and the limit block is in a truncated cone shape, and the limit block can be inserted into the through holes opened on the flange installed on the upper outer ring of the water inlet pipe.

[0014] As a preferred technical solution of the present invention, the lower end of the water inlet pipe is connected to an external water source through a pipeline, and a filtering device is provided on the pipeline to filter the water entering the boiler pressure vessel tank to ensure clean water quality.

[0015] As a preferred technical solution of the present invention, the defect detection camera can capture high-definition images of the inner wall of the boiler pressure vessel and transmit them to an external monitoring system via wireless signals for real-time display and analysis.

[0016] As a preferred technical solution of the present invention, the push rod motor is equipped with a temperature sensor for real-time monitoring of the working temperature of the push rod motor and automatically adjusting it through a PLC controller.

[0017] As a preferred technical solution of the present invention, a waterproof sealing ring is provided on the fixing ring to prevent moisture from entering the connection part between the fixing ring and the pull rope, so as to ensure the stability and accuracy of the equipment during the detection process.

[0018] Compared with the prior art, the present invention provides a boiler pressure vessel inner wall defect detection device, which has the following beneficial effects: 1. The boiler pressure vessel inner wall defect detection device is provided with a mounting rod, a push rod motor and a pull rope, etc. Since the push rod motor is in a vertical direction at this time, the push rod motor can be conveniently extended from the water inlet pipe into the boiler pressure vessel tank under the action of the mounting rod, and then the hand wheel can be turned to drive the worm to rotate, and then the worm gear can drive the rotating shaft to rotate, and then the pull rope wound on the rotating roller can be released, so that the push rod motor can be put down, and then the push rod motor can be placed horizontally, and the electric telescopic rod can be started by the PLC controller at this time, and the output end of the electric telescopic rod can drive the defect detection camera to detect the inner wall of the boiler pressure vessel tank; 2. This boiler pressure vessel inner wall defect detection device is equipped with a PLC controller, a push rod motor and a defect detection camera. When the push rod motor is started by the PLC controller, the output end of the push rod motor extends. During this process, if the defect detection camera installed at the output end of the electric telescopic rod detects that there is a defect on the inner wall of the boiler pressure vessel tank, the corresponding defect position of the inner wall of the boiler pressure vessel tank can be judged by the extension distance of the output end of the push rod motor, which is convenient for relevant personnel to do further processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is an overall schematic diagram of the present invention; Figure 2 It is a schematic diagram of the cross-sectional structure of the boiler pressure vessel tank of the present invention; Figure 3 For the present invention Figure 2 A schematic diagram of the structure enlargement of part A; Figure 4 This is a schematic diagram of the folded structure of the push rod motor of the present invention; Figure 5 It is a schematic diagram of the structure of the rotating roller of the present invention; Figure 6 It is a schematic diagram of the cross-sectional structure of the transmission box of the present invention.

[0020] Figure numerals: 1. boiler pressure vessel tank; 2. water inlet pipe; 3. cover plate; 4. PLC controller; 5. pull rope; 6. transmission box; 7. support plate; 8. defect detection camera; 9. electric telescopic rod; 10. lighting lamp; 11. mounting plate; 12. fixing ring; 13. fixing plate; 14. push rod motor; 15. base; 16. mounting rod; 17. articulated seat; 18. hand wheel; 19. worm; 20. limit block; 21. rotating roller; 22. worm wheel; 23. rotating shaft. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0022] Embodiment 1:

[0023] See also Figure 1 , Figure 2 , Figure 3 and Figure 4, including a boiler pressure vessel tank 1, water inlet pipes 2 are installed on both sides of the top of the boiler pressure vessel tank 1, a cover plate 3 is placed on the left water inlet pipe 2, the cover plate 3 can cover the water inlet pipe 2, a mounting rod 16 is welded at the bottom of the cover plate 3, the mounting rod 16 can extend into the boiler pressure vessel tank 1, a hinge seat 17 is welded at the bottom of the mounting rod 16, one side of the hinge seat 17 is hinged with a base 15, which can realize the push rod motor 14 from a vertical state to a horizontal state, the push rod motor 14 is fixedly installed on the base 15 by bolts, the output end of the push rod motor 14 is installed with a mounting plate 11, the outer ring of the mounting plate 11 is provided with a plurality of electric telescopic rods 9, and the output end of the electric telescopic rod 9 is installed There is a defect detection camera 8. Starting the electric telescopic rod 9 can move the defect detection camera 8 forward. A fixing plate 13 is fixedly installed on the outer ring of one side of the push rod motor 14. A fixing ring 12 is fixedly installed on the fixing plate 13. A pull rope 5 that passes through the cover plate 3 is installed on the fixing ring 12. The push rod motor 14 can be changed from a vertical state to a horizontal state, or from a vertical state to a horizontal state through the pull rope 5. A PLC controller 4 is fixedly installed on one side of the top surface of the cover plate 3, which can control the push rod motor 14 and the electric telescopic rod 9, and can also control the lighting 10 and the defect detection camera 8, and can also record the stroke of the output end of the push rod motor 14.

[0024] Embodiment 2:

[0025] See also Figure 1 , Figure 4 , Figure 5 and Figure 6 Two support plates 7 are welded on one side of the top surface of the cover plate 3 to play a supporting role, and the upper part of the two support plates 7 close to each other is rotatably connected with a rotating shaft 23, the right end of the rotating shaft 23 penetrates the right support plate 7, and a transmission box 6 is fixedly installed on the right side of the right support plate 7. The right end of the rotating shaft 23 penetrates one end of the right support plate 7 and extends to the inside of the transmission box 6, and a worm gear 22 is installed at one end of the rotating shaft 23 located inside the transmission box 6. Rotating the worm gear 22 can drive the rotating shaft 23 to rotate. The transmission box 6 is a box made of metal, and the inner wall of one side of the transmission box 6 is rotatably connected with a worm 19 that penetrates and extends to the outside of the transmission box 6. The worm 19 is meshed with the worm wheel 22. The worm 19 passes through and extends to one end of the transmission box 6, and a handwheel 18 is installed. Turning the handwheel 18 can drive the worm 19 to rotate, and then drive the worm wheel 22 to rotate. The outer ring of the rotating shaft 23 located on the side where the two support plates 7 are close to each other is installed with a rotating roller 21. The end of the pull rope 5 away from the fixed ring 12 is fixedly installed on the rotating roller 21, and the pull rope 5 is wound around the outer ring of the rotating roller 21. When the rotating shaft 23 rotates, it can drive the rotating roller 21 to rotate. When the rotating roller 21 rotates, the pull rope 5 can be wound around the outer ring of the rotating roller 21, or the pull rope 5 wound around the outer ring of the rotating roller 21 can be released.

[0026] Embodiment three:

[0027] See also Figure 1 , Figure 2 , Figure 3 and Figure 4 The PLC controller 4 installed on the top of the cover plate 3 is electrically connected to the push rod motor 14 and the electric telescopic rod 9, that is, the push rod motor 14 and the electric telescopic rod 9 can be controlled by the PLC controller 4. A lighting lamp 10 is installed on the side of the mounting plate 11 away from the push rod motor 14. The lighting lamp 10 can illuminate the interior of the boiler pressure vessel tank 1. The outer ring of the mounting plate 11 is evenly provided with multiple groups of mounting grooves. The electric telescopic rod 9 is installed in the mounting grooves provided in the outer ring of the mounting plate 11. Two grooves are provided in the middle of the left side of the base 15, and the two grooves provided in the middle of the left side of the base 15 are both L-shaped. The hinge seat 17 is U-shaped, and the two sides of the U-shaped hinge seat 17 are respectively inserted into the two grooves provided in the middle of the left side of the base 15, and the two sides of the hinge seat 17 are located at the middle of the left side of the base 15. The two grooves are rotatably connected, and the push rod motor 14 can be lowered under the action of the hinge seat 17 and the gravity of the push rod motor 14, and then the push rod motor 14 can be placed horizontally. The upper outer ring of the water inlet pipe 2 is installed with a flange, and the flange installed on the upper outer ring of the water inlet pipe 2 is provided with multiple groups of through holes. The bottom of the cover plate 3 is welded with a limit block 20 corresponding to the through holes opened on the flange installed on the upper outer ring of the water inlet pipe 2, and the limit block 20 is truncated cone-shaped. The limit block 20 can be inserted into the through holes opened on the flange installed on the upper outer ring of the water inlet pipe 2, and the cover plate 3 can be limited. The truncated cone setting at the bottom of the cover plate 3 can be set according to the through holes opened on the flange installed on the upper outer ring of the water inlet pipe 2 to ensure that the push rod motor 14 is parallel to the boiler pressure vessel tank 1 when it is in a horizontal state.

[0028] The working principle and use process of the present invention are as follows: when in use, the cover plate 3 can be placed on the water inlet pipe 2. At this time, the limit block 20 installed at the bottom of the cover plate 3 can be inserted into the through hole opened by the flange installed on the upper outer ring of the water inlet pipe 2, so as to realize the positioning of the cover plate 3. Since the push rod motor 14 is in a vertical direction at this time, the push rod motor 14 can be conveniently extended from the water inlet pipe 2 into the boiler pressure vessel tank 1 under the action of the mounting rod 16. Then, the hand wheel 18 can be rotated to drive the worm 19 to rotate, and then the worm gear 22 can be driven to rotate. When the worm gear 22 rotates, the rotating shaft 23 can be rotated, and then the rotating roller 21 can be rotated. When the rotating roller 21 rotates, the pull rope 5 wound on the rotating roller 21 can be released. At this time, under the action of the hinged seat 17 and the gravity of the push rod motor 14, the push rod motor 14 can be put down, and then the push rod motor 14 can be placed horizontally, and at this time, it can be controlled by PLC. The controller 4 starts the electric telescopic rod 9. At this time, the output end of the electric telescopic rod 9 can drive the defect detection camera 8 to detect the inner wall of the boiler pressure vessel tank 1. At the same time, the push rod motor 14 can be turned on through the PLC controller 4. At this time, the output end of the push rod motor 14 can drive the mounting plate 11 to move forward, and the lighting lamp 10 installed on the mounting plate 11 can illuminate the interior of the boiler pressure vessel tank 1 to prevent the interior of the boiler pressure vessel tank 1 from being too dark, which is not conducive to the detection of the inner wall of the boiler pressure vessel tank 1. When the push rod motor 14 is started by the PLC controller 4, the output end of the push rod motor 14 extends out. During this process, if the defect detection camera 8 installed at the output end of the electric telescopic rod 9 detects that there is a defect in the inner wall of the boiler pressure vessel tank 1, the corresponding defect position of the inner wall of the boiler pressure vessel tank 1 can be judged by the distance extended by the output end of the push rod motor 14, which is convenient for relevant personnel to do further processing.

[0029] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A boiler pressure vessel inner wall defect detection device, comprising a boiler pressure vessel tank (1), characterized in that: Water inlet pipes (2) are installed on both sides of the top of the boiler pressure vessel tank (1), a cover plate (3) is placed on the left side of the water inlet pipe (2), a mounting rod (16) is welded to the bottom of the cover plate (3), a hinge seat (17) is welded to the bottom of the mounting rod (16), a base (15) is hingedly connected to one side of the hinge seat (17), a push rod motor (14) is fixedly installed on the base (15) by bolts, a mounting plate (11) is installed at the output end of the push rod motor (14), a plurality of electric telescopic rods (9) are arranged on the outer ring of the mounting plate (11), a defect detection camera (8) is installed at the output end of the electric telescopic rod (9), a fixing plate (13) is fixedly installed on the outer ring of one side of the push rod motor (14), a fixing ring (12) is fixedly installed on the fixing plate (13), a pull rope (5) passing through the cover plate (3) is installed on the fixing ring (12), and a PLC controller (4) is fixedly installed on one side of the top surface of the cover plate (3).

2. A boiler pressure vessel inner wall defect detection device according to claim 1, characterized in that: Two support plates (7) are welded to one side of the top surface of the cover plate (3), and a rotating shaft (23) is rotatably connected to the upper part of the two support plates (7) close to each other, and the right end of the rotating shaft (23) passes through the right support plate (7).

3. A boiler pressure vessel inner wall defect detection device according to claim 2, characterized in that: A transmission box (6) is fixedly mounted on the right side of the support plate (7) located on the right side, the right end of the rotating shaft (23) passes through one end of the right side support plate (7) and extends into the interior of the transmission box (6), and a worm gear (22) is mounted on one end of the rotating shaft (23) located inside the transmission box (6).

4. A boiler pressure vessel inner wall defect detection device according to claim 3, characterized in that: The transmission box (6) is a box body made of metal, and a worm (19) is rotatably connected to the inner wall of one side of the transmission box (6) and passes through and extends to the outside of the transmission box (6). The worm (19) is meshed with a worm wheel (22), and a hand wheel (18) is installed at one end of the worm (19) that passes through and extends to the outside of the transmission box (6).

5. The boiler pressure vessel inner wall defect detection device according to claim 2, characterized in that: A rotating roller (21) is installed on the outer ring of the rotating shaft (23) located on the side where the two support plates (7) are close to each other, and one end of the pull rope (5) away from the fixed ring (12) is fixedly installed on the rotating roller (21), and the pull rope (5) is wound around the outer ring of the rotating roller (21).

6. The boiler pressure vessel inner wall defect detection device according to claim 1, characterized in that: The PLC controller (4) installed on the top of the cover plate (3) is electrically connected to the push rod motor (14) and the electric telescopic rod (9), so that the push rod motor (14) and the electric telescopic rod (9) can be controlled by the PLC controller (4).

7. The boiler pressure vessel inner wall defect detection device according to claim 1, characterized in that: A lighting lamp (10) is installed on a side of the mounting plate (11) away from the push rod motor (14), and a plurality of groups of mounting grooves are evenly arranged on the outer ring of the mounting plate (11). The electric telescopic rod (9) is installed in the mounting grooves arranged on the outer ring of the mounting plate (11).

8. The boiler pressure vessel inner wall defect detection device according to claim 1, characterized in that: The base (15) has two grooves in the middle of the left side, and the two grooves in the middle of the left side of the base (15) are both L-shaped. The hinge seat (17) is U-shaped, and the two sides of the U-shaped hinge seat (17) are respectively inserted into the two grooves in the middle of the left side of the base (15), and the two sides of the hinge seat (17) are rotatably connected in the two grooves in the middle of the left side of the base (15).

9. The boiler pressure vessel inner wall defect detection device according to claim 1, characterized in that: The upper outer ring of the water inlet pipe (2) is equipped with a flange, and the flange on which the upper outer ring of the water inlet pipe (2) is equipped has a plurality of through holes. The bottom of the cover plate (3) is welded with a limit block (20) corresponding to the through holes on the flange on which the upper outer ring of the water inlet pipe (2) is equipped, and the limit block (20) is in a truncated cone shape. The limit block (20) can be inserted into the through holes on the flange on which the upper outer ring of the water inlet pipe (2) is equipped.

10. The boiler pressure vessel inner wall defect detection device according to claim 1, characterized in that: The lower end of the water inlet pipe (2) is connected to an external water source via a pipeline, and a filtering device is provided on the pipeline for filtering water entering the boiler pressure vessel tank to ensure clean water quality.

11. The boiler pressure vessel inner wall defect detection device according to claim 1, characterized in that: The defect detection camera (8) captures a high-definition image of the inner wall of the boiler pressure vessel and transmits the image to an external monitoring system via a wireless signal for real-time display and analysis.

12. The boiler pressure vessel inner wall defect detection device according to claim 1, characterized in that: The push rod motor (14) is equipped with a temperature sensor for real-time monitoring of the working temperature of the push rod motor (14) and automatically adjusting the temperature through the PLC controller (4).

13. The boiler pressure vessel inner wall defect detection device according to claim 1, characterized in that: The fixing ring (12) is provided with a waterproof sealing ring for preventing moisture from entering the connection portion between the fixing ring and the drawstring (5).

Images