Boiler inspection unmanned aerial vehicle

Abstract

The utility model discloses a boiler inspection unmanned aerial vehicle which comprises an unmanned aerial vehicle body and a mounting frame, a bolt limiting assembly is arranged at the bottom of the mounting frame, and the mounting frame is detachably connected with the unmanned aerial vehicle body through the bolt limiting assembly; a material storage tank, a pressure pump and a material spraying pipe are mounted on the mounting frame, and a material outlet with an electromagnetic valve is formed in the bottom of the material storage tank; the pressure pump is respectively communicated with the material storage tank and the material spraying pipe; and the connecting electromagnetic valve and the pressure pump are respectively connected with the unmanned aerial vehicle main body. The unmanned aerial vehicle body controls opening and closing of the pressurizing pump and the electromagnetic valve, remote control operation of spraying is achieved, the pressurizing pump pressurizes coating and then sprays the coating through the spraying pipe, spraying is even, and the spraying effect is good; the boiler inspection unmanned aerial vehicle overcomes the defect that an existing inspection unmanned aerial vehicle cannot mark the defect position when inspecting a boiler, the position needing to be maintained can be rapidly determined when the defect position is maintained through marking of paint sprayed out of the spraying pipe, and maintenance operation is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of boiler inspection, and in particular to a boiler inspection drone. Background Art

[0002] Large boilers are important equipment in thermal power plants. The boiler furnace is surrounded by water-cooled walls, which need to be inspected during the boiler operation cycle to find faults and perform repairs. At present, the inspection of large boiler water-cooled walls mainly relies on manual labor. Due to the huge size of large boilers, such as a 600MW unit that can be as high as 60 meters, it is necessary to set up scaffolding next to the water-cooled wall in a large area. At the same time, there is usually dust on the surface of the boiler water-cooled wall, and the working environment is harsh, making the inspection of the water-cooled wall difficult, slow, and costly. With the development of inspection drone technology, existing boiler inspections will also use drones for inspection operations. For example, Chinese patent CN202222862603.5 discloses a drone for autonomous inspection in a furnace, including a tripod, an I-shaped arm on which a brushless motor is installed, a 9055 propeller connected to the end of the brushless motor, a positioning cabin, a control cabin, a battery cabin and a mounting cabin are provided in the middle of the I-shaped arm, a remote control receiver and a 360° laser radar are installed in the positioning cabin, an IMU inertial measurement unit and an ALICE2 flight control are installed in the control cabin, the IMU inertial measurement unit is located above the ALICE2 flight control, a lithium battery is installed in the battery cabin, and a camera is installed in the mounting cabin. When the drone inspects the boiler, it adopts the 360° laser scanning positioning principle. It can autonomously photograph and inspect the heating surface tube castables in the furnace and the internal castables of the cyclone separator in conditions where there is no GPS signal, heavy dust, and dim light inside the thermal power plant boiler. The operation is simple, and the detection is accurate and efficient. However, the existing inspection drones can no longer mark the damaged areas as needed during the inspection. This results in the inspection knowing that there is damage on the inner wall of the boiler, but it is difficult for the maintenance room to determine the specific location later. Therefore, how to mark the location in time after the inspection drone detects the defects on the inner wall of the boiler has become an urgent problem to be solved. Utility Model Content

[0003] In view of the safety hazards of the above-mentioned manual inspection and the inability of inspection drones to mark defective locations, the utility model provides a boiler inspection drone that can assist staff in marking defective locations on the inner wall of the boiler to facilitate subsequent boiler water-cooled wall maintenance operations.

[0004] To achieve the above purpose, the technical solution of the utility model is as follows:

[0005] A boiler inspection drone comprises a drone body and a mounting frame, wherein a bolt limit assembly is further provided at the bottom of the mounting frame, and the mounting frame is detachably connected to the drone body through the bolt limit assembly; a storage tank, a booster pump and a spray pipe are detachably installed on the mounting frame, wherein a discharge port with a solenoid valve is provided at the bottom; the feed port of the booster pump is connected to the discharge port of the storage tank, and the discharge port is connected to the spray pipe; the connecting solenoid valve and the booster pump are respectively connected to the drone body, and are respectively controlled to be opened or closed by the drone body.

[0006] Furthermore, the mounting frame includes a mounting plate and a support column; the top surface of the mounting plate is provided with a limit frame for mounting a storage tank, a limit ring for mounting a pressure pump and a pipe rack for mounting a spray pipe, and the bottom surface is provided with a support column; the bottom of the support column is connected to a bolt limit assembly; the drone body is provided with a through hole corresponding to the bolt limit assembly. The storage tank, the pressure pump and the spray pipe are respectively placed in the limit frame, the limit groove and the pipe rack to complete the limit operation, which can facilitate the disassembly and assembly of each component and facilitate use.

[0007] Furthermore, the bolt limit assembly includes a threaded connection column and a hand-tightening nut that are threadedly connected together. The threaded connection column is fixedly connected to the bottom surface of the support column, and the diameter of the threaded support column is smaller than the diameter of the support column. The drone body is provided with a through hole corresponding to the threaded support column. The bolt connection column at the bottom of the support column is passed through the through hole, and then the hand-tightening nut is tightened. The mounting frame can be restricted by tightening the hand-tightening nut. The bolt limit assembly has a simple structure and can be quickly disassembled by hand-tightening the nut, which facilitates the connection between the mounting frame and the drone body.

[0008] Furthermore, the pipe rack includes a U-shaped frame and a limiting sleeve, wherein the U-shaped frame is fixedly mounted on the mounting plate, and the limiting sleeve is connected to the U-shaped frame on both sides; the spraying pipe is detachably inserted into the limiting sleeve. The U-shaped frame and the limiting sleeve cooperate together to stably limit the spraying pipe on the mounting rack, ensuring that the spraying pipe does not shift during the spraying process, and facilitating the spraying.

[0009] Furthermore, the two ends of the limit sleeve are rotatably mounted in the U-shaped frame; an electric telescopic rod is also provided on the mounting plate at the bottom of the discharge port of the spraying pipe; the electric telescopic rod is connected to the drone body, and the movable rod of the electric telescopic rod is connected to the spraying pipe. The electric telescopic rod can be controlled by the drone body, and the spraying angle of the spraying pipe can be adjusted by controlling the rise and fall of the movable rod, which can facilitate the spraying operation of the drone.

[0010] Furthermore, the spray pipe includes a delivery pipe and a spray head, wherein the two ends of the delivery pipe are connected to the spray head and the discharge port of the pressure pump respectively. The pressure pump transmits the paint to the spray head through the delivery pipe and then sprays it out. The hose is convenient for connection and delivery of paint, and the spray head can spray the paint evenly. The spray pipe formed by the two is easy to connect and install and convenient to use.

[0011] Furthermore, the storage tank comprises a tank body and an upper cover, wherein the top of the tank body is connected to the upper cover by a thread, and the bottom is a discharge port with a solenoid valve. When adding materials or cleaning the tank body, the upper cover can be unscrewed, which is convenient for operation and cleaning.

[0012] Furthermore, the drone body includes a single chip microcomputer, and the single chip microcomputer is provided with a plurality of peripheral interfaces; the booster pump and the solenoid valve are respectively connected to the peripheral interfaces through flat cables. The booster pump and the battery are respectively connected to the drone body through flat cables, which is convenient and fast to connect, and is convenient for subsequent disassembly and maintenance, and has a good use effect.

[0013] The use of the utility model:

[0014] The main body of the UAV is a commercially available UAV that can be used for inspection. Before use, the mounting frame is first installed on the main body of the UAV through a bolt limit assembly, and then the paint is loaded into a storage tank. The storage tank is then installed on the mounting frame, and the solenoid valve is connected to the main body of the UAV. After that, the discharge port of the storage tank is connected to the feed port of the pressure pump for use. When the inspection UAV finds the damaged defect location during the inspection, the main body of the UAV is remotely controlled, and then the solenoid valve and the pressure pump are controlled to open through the main body of the UAV, and the paint in the storage tank is drawn into the feed port of the pressure pump, and then the paint is sprayed out through the spray pipe after pressurization to complete the positioning mark of the defect location.

[0015] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0016] 1. The utility model controls the opening and closing of the pressure pump and the electromagnetic valve through the drone body to realize the remote control operation of spraying. The paint is pressurized by the pressure pump and then sprayed out through the spray pipe. The spraying is uniform and effective. The marking mechanism solves the problem that the defective position cannot be marked during the inspection of the prior art inspection drone. The paint mark sprayed out of the spray pipe can quickly determine the position that needs to be repaired when repairing the defective position, which is convenient for maintenance operations. At the same time, the detachable design can be used for different inspection occasions.

[0017] 2. The components installed on the mounting plate of the utility model can facilitate the installation of the storage tank, the pressure pump and the spray pipe. The support column is convenient for the overall support of the mounting frame. The support column cooperates with the bolt limit assembly, which is convenient for disassembly and installation with the drone body. The structure is simple and easy to operate; the U-shaped frame and the limit sleeve work together to stably limit the spray pipe on the mounting frame to ensure that the spraying process does not shift and facilitate spraying. The rotatable design of the limit sleeve is used in conjunction with the electric telescopic rod to adjust the spraying angle of the spray pipe and improve the accuracy of spray positioning. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1It is a schematic diagram of the overall structure of the utility model.

[0019] Figure 2 It is a schematic diagram of the connection relationship between the mounting frame of the utility model and other components.

[0020] Figure ID:

[0021] UAV body—1, mounting frame—2, mounting plate—21, limiting frame—211, limiting ring—212, pipe rack—213, U-shaped frame—214, limiting sleeve—215, electric telescopic rod—216, supporting column—22, bolt limiting assembly—3, threaded connecting column—31, hand-tightening nut—32, storage tank—4, tank body—41, upper cover—42, pressure pump—5, spray pipe—6, delivery pipe—61, nozzle—62, solenoid valve—7. DETAILED DESCRIPTION

[0022] The utility model is further described below in conjunction with the accompanying drawings.

[0023] Embodiment 1: A boiler inspection UAV comprises a UAV body 1 and a mounting frame 2, wherein a bolt limit assembly 3 is further provided at the bottom of the mounting frame 2, and the mounting frame 2 is detachably connected to the UAV body 1 through the bolt limit assembly 3; a storage tank 4, a booster pump 5 and a spray pipe 6 are detachably installed on the mounting frame 2, wherein a feed port is provided at the top of the storage tank 4, and a discharge port with an electromagnetic valve 7 is provided at the bottom; the feed port of the booster pump 5 is connected to the discharge port of the storage tank 4, and the discharge port is connected to the spray pipe 6; the connecting electromagnetic valve 7 and the booster pump 5 are respectively connected to the UAV body 1, and are respectively controlled to be opened or closed by the UAV body 1.

[0024] The drone body 1 adopts a commercially available drone that can be used for inspection; before use, the mounting frame 2 is first installed on the drone body 1 through the bolt limit assembly 3, and then the paint is loaded into the storage tank 4, and then the storage tank 4 is installed on the mounting frame 2, and the solenoid valve 7 is connected to the drone body 1 at the same time, and then the discharge port of the storage tank 4 is connected to the feed port of the booster pump 5 for use; when the inspection drone finds the damaged defect position during the inspection, the drone body 1 is remotely controlled, and then the solenoid valve 7 and the booster pump 5 are controlled to open through the drone body 1, and the paint in the storage tank 4 is drawn into the feed port of the booster pump 5, and then the paint is sprayed out through the spray pipe 6 after pressurization to complete the positioning mark of the defect position.

[0025] Embodiment 2: The difference from Embodiment 1 is that the mounting frame 2 includes a mounting plate 21 and a support column 22; the top surface of the mounting plate 21 is provided with a limit frame 211 for mounting the storage tank 4, a limit ring 212 for mounting the booster pump 5 and a pipe rack 213 for mounting the spray pipe 6, and the bottom surface is provided with a support column 22; the bottom of the support column 22 is connected to a bolt limit assembly 3; the drone body 1 is provided with a through hole corresponding to the bolt limit assembly 3. The storage tank 4, the booster pump 5 and the spray pipe 6 are respectively placed in the limit frame 211, the limit groove and the pipe rack 213 to complete the limit operation, which can facilitate the disassembly and assembly of each component and facilitate use.

[0026] The bolt limit assembly 3 includes a threaded connection column 31 and a hand nut 32 that are threadedly connected together. The threaded connection column 31 is fixedly connected to the bottom surface of the support column 22, and the diameter of the threaded support column 22 is smaller than the diameter of the support column 22. The drone body 1 is provided with a through hole corresponding to the threaded support column 22. The bolt connection column at the bottom of the support column 22 is passed through the through hole, and then the hand nut 32 is tightened. The mounting frame 2 can be restricted by tightening the hand nut 32. The bolt limit assembly 3 has a simple structure and can be quickly disassembled by the hand nut 32, which facilitates the connection between the mounting frame 2 and the drone body 1.

[0027] The spray pipe 6 includes a delivery pipe 61 and a spray head 62, wherein both ends of the delivery pipe 61 are respectively connected to the spray head 62 and the discharge port of the pressure pump 5. The pressure pump 5 transfers the paint to the spray head 62 through the delivery pipe 61 and then sprays it out. The hose is convenient for connection and delivery of paint, and the spray head 62 can spray the paint evenly. The spray pipe 6 formed by the two is easy to connect, install and use.

[0028] Embodiment 3: The difference from Embodiment 2 is that the pipe rack 213 includes a U-shaped rack 214 and a limiting sleeve 215, wherein the U-shaped rack 214 is fixedly mounted on the mounting plate 21, and the limiting sleeve 215 is connected to the U-shaped rack 214 on both sides; the spraying pipe 6 is detachably inserted into the limiting sleeve 215. The U-shaped rack 214 and the limiting sleeve 215 cooperate with each other to stably limit the spraying pipe 6 on the mounting rack 2, ensuring that the spraying pipe does not shift during the spraying process, and facilitating spraying.

[0029] The two ends of the limit sleeve 215 are rotatably mounted in the U-shaped frame 214; an electric telescopic rod 216 is also provided on the mounting plate 21 at the bottom of the discharge port of the spraying pipe 6; the electric telescopic rod 216 is connected to the drone body 1, and the movable rod of the electric telescopic rod 216 is connected to the spraying pipe 6. The electric telescopic rod 216 can be controlled by the drone body 1, and the spraying angle of the spraying pipe 6 can be adjusted by controlling the rise and fall of the movable rod, which can facilitate the spraying operation of the drone.

[0030] The storage tank 4 comprises a tank body 41 and an upper cover 42, wherein the top of the tank body 41 is connected to the upper cover 42 by threads, and the bottom is a discharge port with a solenoid valve 7. When adding materials or cleaning the tank body 41, the upper cover 42 can be unscrewed, which is convenient for operation and cleaning.

[0031] The drone body 1 includes a single chip microcomputer, and the single chip microcomputer is provided with a plurality of peripheral interfaces; the booster pump 5 and the solenoid valve 7 are respectively connected to the peripheral interfaces through flat cables. The booster pump 5 and the battery are respectively connected to the drone body 1 through flat cables, which is convenient and fast to connect, and is convenient for subsequent disassembly and maintenance, and has a good use effect.

[0032] In the specification of the present utility model, a lot of specific details are described. However, it is understood that the embodiments of the present utility model can be practiced without these specific details. In some examples, well-known methods, structures and techniques are not shown in detail so as not to obscure the understanding of this specification.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model, and they should all be included in the scope of the claims and specification of the utility model.

Claims

1. A boiler inspection drone, characterized by: The invention comprises an unmanned aerial vehicle (UAV) body (1) and a mounting frame (2), wherein a bolt stop assembly (3) is further provided at the bottom of the mounting frame (2), and the mounting frame (2) is detachably connected to the UAV body (1) via the bolt stop assembly (3); a material storage tank (4), a pressure pump (5) and a material spraying pipe (6) are detachably installed on the mounting frame (2), wherein a material discharge port with a solenoid valve (7) is provided at the bottom of the material storage tank (4); the material feed port of the pressure pump (5) is connected to the material discharge port of the material storage tank (4), and the material discharge port is connected to the material spraying pipe (6); the solenoid valve (7) and the pressure pump (5) are respectively connected to the UAV body (1), and are respectively controlled to be opened or closed by the UAV body (1).

2. A boiler inspection drone as claimed in claim 1, characterized in that: The mounting frame (2) comprises a mounting plate (21) and a support column (22); the top surface of the mounting plate (21) is provided with a limit frame (211) for mounting a material storage tank (4), a limit ring (212) for mounting a pressure pump (5) and a pipe rack (213) for mounting a material spraying pipe (6), and the bottom surface is provided with a support column (22); the bottom of the support column (22) is connected to a bolt limit assembly (3); the drone body (1) is provided with a through hole corresponding to the bolt limit assembly (3).

3. A boiler inspection drone as claimed in claim 2, characterized in that: The bolt limiting assembly (3) comprises a threaded connection column (31) and a hand-tightened nut (32) that are threadedly connected together, the threaded connection column (31) is fixedly connected to the bottom surface of the support column (22), and the diameter of the threaded support column (22) is smaller than the diameter of the support column (22); the drone body (1) is provided with a through hole corresponding to the threaded support column (22).

4. A boiler inspection drone as described in any one of claims 2 or 3, characterized in that: The pipe rack (213) comprises a U-shaped rack (214) and a limiting sleeve (215), wherein the U-shaped rack (214) is fixedly mounted on the mounting plate (21), and the limiting sleeve (215) is connected to the U-shaped rack (214) on both sides; the spray pipe (6) is detachably inserted into the limiting sleeve (215).

5. A boiler inspection drone as claimed in claim 4, characterized in that: The two ends of the limit sleeve (215) are rotatably mounted in the U-shaped frame (214); an electric telescopic rod (216) is also provided on the mounting plate (21) at the bottom of the discharge port of the spray pipe (6); the electric telescopic rod (216) is connected to the drone body (1), and the movable rod of the electric telescopic rod (216) is connected to the spray pipe (6).

6. A boiler inspection drone as described in any one of claims 1 to 3, characterized in that: The spray pipe (6) comprises a delivery pipe (61) and a spray head (62), wherein two ends of the delivery pipe (61) are respectively connected to the spray head (62) and the discharge port of the pressure pump (5).

7. A boiler inspection drone as claimed in claim 1, characterized in that: The material storage tank (4) comprises a tank body (41) and an upper cover (42), wherein the top of the tank body (41) is connected to the upper cover (42) via threads, and the bottom is a material outlet with a solenoid valve (7).

8. The boiler inspection drone according to claim 1, characterized in that: The drone body (1) comprises a single-chip microcomputer, on which a plurality of peripheral interfaces are provided; the booster pump (5) and the solenoid valve (7) are respectively connected to the peripheral interfaces via wiring.

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