Gas tank leakage detection device
By designing an automated gas tank leakage detection device, using water injection or inflation method combined with electronic scale and pressure sensor, the automatic detection and screening of gas tank leakage is achieved, solving the problems of cumbersome operation and manual judgment in the existing technology, and improving detection efficiency and accuracy.
Patent Information
- Application Number
- CN202422306856.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-20
- Publication Date
- 2025-07-11
- Estimated Expiration
- 2034-09-20
AI Technical Summary
The existing gas tank leakage detection device is cumbersome to operate, requires manual judgment and is affected by environmental factors, making automated detection difficult.
A gas tank leakage detection device is designed, which automatically detects the gas tank leakage by water injection or inflation, uses electronic metering and pressure sensors to identify the leakage, and automatically clamp and move the gas tank through the moving mechanism and the electric push rod, and screens the gas tank with the conveyor belt.
It realizes automatic and efficient detection of gas tank leakage detection, reduces manual intervention, can identify the severity of leakage, and automatically screens qualified and unqualified gas tanks.
Smart Images
Figure CN223091454U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of gas tank detection, and particularly relates to a gas tank leakage detection device. Background Technique
[0002] A gas tank is a container for storing compressed gas, which is widely used in multiple fields such as industry, medical treatment, and household. There are multiple types of gas tanks, including compressed air tanks, liquefied gas tanks, and gas cylinders. These gas tanks play a crucial role in their respective fields, such as explosion protection, cleaning, and painting in the industrial field, oxygen supply in the medical field, and cooking and heating in the household field. Gas tanks must strictly comply with relevant regulations and precautions during use to ensure their safe and stable operation. First of all, the gas tank should be placed in a well-ventilated and dry place, avoiding direct sunlight and high-temperature baking. Secondly, the gas tank and the gas pipeline should be regularly subjected to a hydrostatic test and a safety valve calibration to ensure their tightness and safety. However, the gas tank may still leak. The reasons for leakage are diverse, including equipment aging, damage, improper operation, and contact with a fire source. Once a leak occurs, it will not only cause waste of resources, but may also trigger serious accidents such as fires and explosions, posing a threat to people's lives and property safety. To detect and handle gas tank leaks in a timely manner, various gas tank leakage detection devices have been developed. These devices usually use methods such as the bubbling method and the soapy water smearing method for detection. In the prior art, the gas tank leakage detection device generally uses the bubbling method for detection. By smearing a test medium at the weld of the gas tank and observing whether bubbles are generated to determine whether a leak has occurred. However, this method is cumbersome to operate and requires manual judgment on whether bubbles are generated, and is greatly affected by environmental factors, making automated detection difficult. Content of the Utility Model
[0003] In view of this, the utility model provides a gas tank leakage detection device to solve the problems existing above.
[0004] The technical solution of the utility model is realized as follows:
[0005] An air tank leakage detection device includes a frame, a first conveyor belt, and a controller. The first conveyor belt is provided at the bottom of the frame. A fixed seat is provided on the top surface of the first conveyor belt. A groove is provided at the top of the fixed seat, and an air tank is arranged in the groove. A moving mechanism is provided at the top of the frame. A first electric push rod is connected to the bottom of the moving mechanism. The telescopic end of the first electric push rod is connected to a first motor. A rotating plate is sleeved on the output shaft of the first motor. Brackets are oppositely arranged on the bottom surface of one end of the rotating plate. Second electric push rods are oppositely arranged on the side surfaces of the brackets. Arc-shaped plates are provided at the telescopic ends of the second electric push rods. An injection tube is arranged between the two arc-shaped plates. The injection tube passes through the rotating plate and is connected to a pressure tube. The other end of the pressure tube passes through the moving mechanism and the frame and is connected to a three-way valve. The two inlet ports on both sides of the three-way valve are respectively connected to a water pump and an air compressor. The water pump and the air compressor are provided on the top surface of the frame. An L-shaped bracket is provided on the top surface of the bottom of the frame. A detection cylinder is arranged on the side surface of the L-shaped bracket. A pressure sensor is arranged on the inner wall of the detection cylinder, and a first solenoid valve is provided at its bottom. An electronic scale is provided on the top surface of the bottom of the frame. A water cup is arranged on the top surface of the electronic scale, and the water cup is located directly below the detection cylinder. The controller is arranged on the top surface of the frame and is electrically connected to the moving mechanism, the first electric push rod, the first motor, the second electric push rod, the three-way valve, the electronic scale, the pressure sensor, and the first solenoid valve.
[0006] Preferably, the moving mechanism includes a lead screw, a second motor, and a moving block. The lead screw is rotatably arranged at the top of the frame, one end of which is rotatably connected to the frame, and the other end passes through the frame and is drivenly connected to the second motor.
[0007] Preferably, a drain pipe is connected to the bottom of the water cup, and a second solenoid valve is provided on the drain pipe.
[0008] Preferably, it further includes a first sealing washer and a second sealing washer. The first sealing washer is sleeved on the injection tube and its top surface abuts against the bottom surface of the rotating plate. The second sealing washer is concentric with the first sealing washer and its top surface abuts against the bottom surface of the rotating plate.
[0009] Preferably, the pressure tube is made of a polyurethane flexible corrugated pipe.
[0010] Preferably, it further includes a second conveyor belt and a third conveyor belt. The second conveyor belt and the third conveyor belt are oppositely arranged at the bottom of the frame and on the side of the electronic scale away from the first conveyor belt. Fixed seats are provided on the tops of the second conveyor belt and the third conveyor belt.
[0011] Preferably, it further includes a drainage trough. The drainage trough is arranged at the bottom of the frame and below the outlet of the drain pipe.
[0012] Compared with the prior art, the beneficial effects of the present utility model are:
[0013] 1. The leakage detection of the gas cylinder can be carried out by the water injection method according to the usage requirements of the gas cylinder. When the detection device uses the water injection method to detect the leakage of the gas cylinder, the moving mechanism and the first electric push rod move relative to each other. The rotating plate moves above the gas cylinder, inserts the injection tube into the gas cylinder, starts the second electric push rod, and the second electric push rod extends to drive the arc plate to move. The two arc plates clamp the top of the gas cylinder, and the gas cylinder is placed into the detection cylinder driven by the moving mechanism. Then, water is injected into the gas cylinder. When there is a leak hole in the gas cylinder, the clear water will leak out of the gas cylinder and fall into the water cup below from the bottom of the gas cylinder. According to the change in weight detected by the electronic scale, the leakage situation of the gas cylinder can be identified, and the severity of the leakage problem can be further identified through the magnitude of the change amount, which is beneficial to the subsequent maintenance operation of the gas cylinder.
[0014] 2. The leakage detection of the gas cylinder can be carried out by the gas charging method according to the usage requirements of the gas cylinder. When the detection device uses the gas charging method to detect the leakage of the gas cylinder, the gas cylinder is placed into the detection cylinder driven by the moving mechanism and the first electric push rod. The first solenoid valve at the bottom of the detection cylinder is closed, and the bottom surface of the rotating plate abuts against the top surface of the detection cylinder to achieve sealing. Then, gas is charged into the gas cylinder. When there is a leak hole in the gas cylinder, the pressure sensor will detect the pressure change, thereby identifying the leakage situation of the gas cylinder.
[0015] 3. A second conveyor belt and a third conveyor belt are provided. After the leakage detection of the gas cylinder, the moving mechanism automatically places the qualified gas cylinders detected on the second conveyor belt, while the gas cylinders detected to have leakage are transferred to the third conveyor belt, thus completing the screening of the gas cylinders, which is beneficial to the subsequent processing of the unqualified gas cylinders. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only the preferred embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.
[0017] Figure 1 It is a three-dimensional structural schematic diagram of a gas cylinder leakage detection device of the present invention;
[0018] Figure 2 It is a sectional structural schematic diagram of a gas cylinder leakage detection device of the present invention;
[0019] Figure 3 It is Figure 2 The sectional view at A in
[0020] Figure 4 It is Figure 3 The enlarged view at B - B in
[0021] In the figure, 1 is the frame; 2 is the lead screw; 3 is the first motor; 4 is the moving block; 5 is the first electric push rod; 6 is the second motor; 7 is the rotating plate; 8 is the bracket; 9 is the second electric push rod; 10 is the arc-shaped plate; 11 is the injection tube; 12 is the pressure sensor; 13 is the pressure tube; 14 is the L-shaped bracket; 15 is the detection cylinder; 16 is the water cup; 17 is the electronic scale; 18 is the drain pipe; 19 is the first solenoid valve; 20 is the controller; 21 is the water pump; 22 is the first conveyor belt; 23 is the fixed seat; 24 is the groove; 25 is the drainage trough; 26 is the second conveyor belt; 27 is the third conveyor belt; 28 is the first sealing washer; 29 is the second sealing washer; 30 is the air compressor; 31 is the three-way valve; 32 is the gas tank; 33 is the second solenoid valve. Detailed implementation manner
[0022] To better understand the technical content of the present invention, a specific embodiment is provided below, and the present invention will be further described in conjunction with the accompanying drawings.
[0023] See Figures 1 to 4, a gas cylinder leakage detection device provided by the utility model includes a frame 1, a first conveyor belt 22 and a controller 20. The first conveyor belt 22 is arranged at the bottom of the frame 1. A fixing seat 23 is arranged on the top surface of the first conveyor belt 22. A groove 24 is arranged at the top of the fixing seat 23. A gas cylinder 32 is arranged in the groove 24. The groove 24 can support the gas cylinder 32 to be placed vertically. A moving mechanism is arranged at the top of the frame 1. A first electric push rod 5 is connected to the bottom of the moving mechanism. The telescopic end of the first electric push rod 5 is connected to a first motor 3. The first motor 3 is a stepper motor that can control the rotation angle. A rotating plate 7 is sleeved on the output shaft of the first motor 3. Opposite brackets 8 are arranged on the bottom surface of one end of the rotating plate 7. Opposite second electric push rods 9 are arranged on the side surfaces of the brackets 8. Arc-shaped plates 10 are arranged at the telescopic ends of the second electric push rods 9. The side arc of the arc-shaped plate 10 matches the top diameter of the gas cylinder 32. An injection pipe 11 is arranged between the two arc-shaped plates 10. The injection pipe 11 passes through the rotating plate 7 and is connected to a pressure pipe 13. The other end of the pressure pipe 13 passes through the moving mechanism and the frame 1 and is connected to a three-way valve 31. The three-way valve 31 is a two-position three-way solenoid valve. The two inlet ports on both sides of the three-way valve 31 are respectively connected to a water pump 21 and an air compressor 30. The water pump 21 and the air compressor 30 are arranged on the top surface of the frame 1. An L-shaped bracket 14 is arranged on the top surface of the bottom of the frame 1. A detection cylinder 15 is arranged on the side surface of the L-shaped bracket 14. A pressure sensor 12 is arranged on the inner wall of the detection cylinder 15. A first solenoid valve 19 is arranged at its bottom. An electronic scale 17 is arranged on the top surface of the bottom of the frame 1. A water cup 16 is arranged on the top surface of the electronic scale 17. The water cup 16 is located directly below the detection cylinder 15. The controller 20 is arranged on the top surface of the frame 1 and is electrically connected to the moving mechanism, the first electric push rod 5, the first motor 3, the second electric push rod 9, the three-way valve 31, the electronic scale 17, the pressure sensor 12 and the first solenoid valve 19. The controller 20 uses a low-power series microprocessor with the model STM32-L0.
[0024] When the detection device works, first start the moving mechanism. The moving mechanism drives the first electric push rod 5 to move. The movement of the first electric push rod 5 drives the first motor 3 to move. The movement of the first motor 3 drives the rotating plate 7 to move, thereby driving the injection tube 11 to move. When the injection tube 11 moves to directly above the air tank 32, start the first electric push rod 5. The telescopic end of the first electric push rod 5 extends, driving the injection tube 11 to descend and insert into the air tank 32. When the bottom surface of the rotating plate 7 abuts against the top surface of the air tank 32, then start the second electric push rod 9. The telescopic end of the second electric push rod 9 extends to drive the arc-shaped plate 10 to move towards the middle, thereby clamping the top of the air tank 32. Then start the moving mechanism to move the air tank 32 to directly above the detection cylinder 15. Then start the first electric push rod 5. The telescopic end of the first electric push rod 5 extends, driving the air tank 32 to descend and insert into the detection cylinder 15. After the bottom surface of the rotating plate 7 abuts against the top surface of the detection cylinder 15, open the first solenoid valve 19, and select water injection or inflation according to the requirements of the air tank 32 for leakage detection; when the water injection method is selected, the controller 20 starts the three-way valve 31 and simultaneously starts the water pump 21. The water pump 21 is connected to the pressure pipe 13 through the three-way valve 31, and the air compressor 30 and the pressure pipe 13 are not connected. The water pump 21 injects water into the air tank 32 through the pressure pipe 13 and the injection tube 11. If there is a leak in the air tank 32, the clear water flows out of the air tank 32 and falls into the water cup 16 through the bottom of the detection cylinder 15. When the electronic scale 17 detects a change in weight, it is identified that there is a leak in the air tank 32, otherwise it is identified as qualified; when the inflation method is selected, the controller 20 closes the first solenoid valve 19, and simultaneously starts the three-way valve 31 and the air compressor 30. The air compressor 30 is connected to the pressure pipe 13 through the three-way valve 31, and the water pump 21 and the pressure pipe 13 are not connected. The air compressor 30 fills the air tank 32 with air through the pressure pipe 13 and the injection tube 11. If there is a leak in the air tank 32, the air overflows from the air tank 32, causing the pressure in the detection cylinder 15 to rise. The pressure sensor 12 identifies that there is a leak in the air tank 32 according to the detected pressure change. If there is no change in pressure, it is identified as qualified; the leak detection device uses air and water, which is safe, environmentally friendly, and the detection operation process is automatic without manual judgment, improving the detection efficiency.
[0025] Preferably, the moving mechanism includes a lead screw 2, a second motor 6, and a moving block 4. The lead screw 2 is rotatably arranged on the top of the frame 1, one end of which is rotatably connected to the frame 1, and the other end passes through the frame 1 and is drivenly connected to the second motor 6.
[0026] When the moving mechanism works, start the second motor 6. The rotation of the second motor 6 drives the lead screw 2 to rotate. The rotation of the lead screw 2 drives the moving block 4 to move on the lead screw 2, thereby realizing the lateral displacement of the first electric push rod 5.
[0027] Preferably, a drain pipe 18 is connected to the bottom of the water cup 16, and a second solenoid valve 33 is provided on the drain pipe 18.
[0028] As the detection device keeps working, the water in the water cup 16 will become more and more. When the water in the water cup 16 reaches a certain amount, the controller 20 automatically controls the second solenoid valve 33 to open, and the water is discharged from the drain pipe 18.
[0029] Preferably, it further includes a first sealing washer 28 and a second sealing washer 29. The first sealing washer 28 is sleeved on the injection pipe 11 and its top surface abuts against the bottom surface of the rotating plate 7. The second sealing washer 29 is concentric with the first sealing washer 28 and its top surface abuts against the bottom surface of the rotating plate 7.
[0030] When the rotating plate 7 descends, the first sealing washer 28 will abut against the top surface of the inlet of the gas cylinder 32, which is beneficial to maintaining the seal of the gas cylinder 32. The second sealing washer 29 abuts against the top surface of the detection cylinder 15, which is beneficial to maintaining the seal of the detection cylinder 15.
[0031] Preferably, the pressure pipe 13 is made of a polyurethane flexible corrugated pipe.
[0032] The pressure pipe 13 is made of a polyurethane flexible corrugated pipe, which has good flexibility and strength. It elongates and shortens as the moving mechanism moves, avoiding and being able to convey compressed gas and liquid.
[0033] Preferably, it further includes a second conveyor belt 26 and a third conveyor belt 27. The second conveyor belt 26 and the third conveyor belt 27 are relatively arranged at the bottom of the frame 1 and are located on the side of the electronic scale 17 away from the first conveyor belt 22. Fixed seats 23 are provided on the tops of the second conveyor belt 26 and the third conveyor belt 27.
[0034] After the gas cylinder 32 passes the leak detection, the moving mechanism automatically places the qualified gas cylinder 32 on the second conveyor belt 26, while the gas cylinder 32 detected to have a leak is transferred to the third conveyor belt 27, thereby completing the screening of the gas cylinder 32, which is beneficial to the next step of dealing with the unqualified gas cylinder 32.
[0035] Preferably, it further includes a drainage trough 25. The drainage trough 25 is arranged at the bottom of the frame 1 and is located below the outlet of the drain pipe 18.
[0036] When the water is discharged from the drain pipe 18, the water flows into the lower drainage trough 25, which is beneficial to recycling the water and avoiding the water flowing everywhere and affecting the environment.
[0037] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims
1. An air tank leakage detection device, characterized in that, It includes a frame, a first conveyor belt, and a controller. The first conveyor belt is arranged at the bottom of the frame. A fixing seat is provided on the top surface of the first conveyor belt. A groove is provided at the top of the fixing seat. An air tank is arranged in the groove. A moving mechanism is provided at the top of the frame. A first electric push rod is connected to the bottom of the moving mechanism. The telescopic end of the first electric push rod is connected to a first motor. A rotating plate is sleeved on the output shaft of the first motor. Brackets are oppositely arranged on the bottom surface of one end of the rotating plate. Second electric push rods are oppositely arranged on the side surfaces of the brackets. Arc-shaped plates are provided at the telescopic ends of the second electric push rods. An injection tube is arranged between the two arc-shaped plates. The injection tube passes through the rotating plate and is connected to a pressure tube. The other end of the pressure tube passes through the moving mechanism and the frame and is connected to a three-way valve. The two inlet ports on both sides of the three-way valve are respectively connected to a water pump and an air compressor. The water pump and the air compressor are arranged on the top surface of the frame. An L-shaped bracket is provided on the top surface of the bottom of the frame. A detection cylinder is arranged on the side surface of the L-shaped bracket. A pressure sensor is arranged on the inner wall of the detection cylinder. A first solenoid valve is provided at its bottom. An electronic scale is provided on the top surface of the bottom of the frame. A water cup is arranged on the top surface of the electronic scale. The water cup is located directly below the detection cylinder. The controller is arranged on the top surface of the frame and is electrically connected to the moving mechanism, the first electric push rod, the first motor, the second electric push rod, the three-way valve, the electronic scale, the pressure sensor, and the first solenoid valve.
2. The gas tank leakage detection device according to claim 1, characterized in that, The moving mechanism includes a lead screw, a second motor, and a moving block. The lead screw is rotatably arranged at the top of the frame. One end of it is rotatably connected to the frame, and the other end passes through the frame and is drivenly connected to the second motor.
3. The gas tank leakage detection device according to claim 1, characterized in that, A drain pipe is connected to the bottom of the water cup. A second solenoid valve is provided on the drain pipe.
4. The air tank leakage detection device according to claim 1, wherein, It also includes a first sealing gasket and a second sealing gasket. The first sealing gasket is sleeved on the injection tube and its top surface abuts against the bottom surface of the rotating plate. The second sealing gasket and the first sealing gasket are concentrically arranged and its top surface abuts against the bottom surface of the rotating plate.
5. The gas tank leakage detection device according to claim 1, characterized in that The pressure tube is made of a polyurethane flexible corrugated pipe.
6. The gas tank leakage detection device according to claim 1, characterized in that, It also includes a second conveyor belt and a third conveyor belt. The second conveyor belt and the third conveyor belt are oppositely arranged at the bottom of the frame and are located on the side of the electronic scale away from the first conveyor belt. Fixing seats are provided on the tops of the second conveyor belt and the third conveyor belt.
7. The gas tank leakage detection device according to claim 1, characterized in that, It also includes a drain trough. The drain trough is arranged at the bottom of the frame and is located below the outlet of the drain pipe.