Pneumatic transmission system with elbow blockage auscultation monitoring function

Abstract

A pneumatic transmission system with elbow blockage monitoring function includes an air source, a transfer tank, a silo, a conveying pipeline, a monitoring device, and a system controller. The conveying pipeline connects the transfer tank and the silo. The air source provides power to transfer powder from the transfer tank to the silo via the conveying pipeline. The conveying pipeline has elbows. The monitoring device includes several vibration sensors and a data acquisition station. The invention also includes several sets of fixing components, each set of fixing components corresponding to one elbow. Each vibration sensor is corresponding to one set of fixing components. The data acquisition station is used to collect data from different vibration sensors and feed the collected data back to the system controller. This invention indirectly determines the blockage status of the elbow, prevents the blockage from worsening, and can accurately locate the blockage point. The overall control is simple, time-saving, labor-saving, cost-effective, and ensures production progress.

Description

Technical Field

[0001] This invention relates to a powder conveying system, and more particularly to a pneumatic conveying system with a stethoscope monitoring function for elbow blockage. Background Technology

[0002] During powder conveying, some poorly flowing powders often encounter blockages at pipe bends. Inappropriate system settings, external material factors, and equipment valve malfunctions can all cause system blockages, and the unpredictability of sealed pipelines exacerbates the blockage. This not only affects normal material conveying but also seriously impacts the safety of the pneumatic conveying system. When troubleshooting blockages, the large plant, long pipelines, and numerous bends make rapid identification impossible. The only solution is to manually tap the pipelines one by one with a stick, listening for sounds to identify and clear the blockages. This method is too primitive, time-consuming, and labor-intensive, severely impacting production efficiency and causing significant disruption to the company's operations. Summary of the Invention

[0003] Therefore, it is necessary to provide a pneumatic transmission system with auscultation monitoring function for elbow blockage, addressing the shortcomings of existing technologies.

[0004] The technical solution of the present invention is as follows: a pneumatic transmission system with auscultatory monitoring function for elbow blockage, comprising an air source, a transfer tank, a silo, a conveying pipeline, a monitoring device, and a system controller. The conveying pipeline connects the transfer tank and the silo. The air source provides power to transfer the powder on the transfer tank to the silo through the conveying pipeline. The conveying pipeline is provided with an elbow. The monitoring device includes several vibration sensors and a data acquisition station. The present invention also includes several sets of fixing components, each set of fixing components being installed on a corresponding elbow. Each vibration sensor is installed on a corresponding set of fixing components. The data acquisition station is used to collect data collected from different vibration sensors and feed the collected data back to the system controller.

[0005] Initially, the number, number and location information of the vibration sensors are entered into the system controller. The basic waveforms output by each vibration sensor when the device is running in different states are also entered into the system controller.

[0006] During normal testing, the system controller determines the overall operating status of the equipment; vibration sensors on each bend collect the vibration values ​​of the bends on the conveying pipeline and feed them back to the system controller through the data acquisition station. The system controller converts the vibration values ​​of the vibration sensors into waveforms; the system controller compares the actual collected waveforms with the basic waveforms of the corresponding operating status, obtains the difference, and determines the degree of blockage of the bend based on the magnitude of the difference.

[0007] In one embodiment, the basic waveform includes a first state waveform, a second state waveform, and a third state waveform. The first state waveform is the output waveform of the vibration sensor when the equipment is in standby mode and the elbow is not vibrating, at which point the waveform is at its lowest point. The second state waveform is the output waveform of the vibration sensor when the equipment is running idly. The third state waveform is the output waveform of the vibration sensor when the material starts to be conveyed and is conveyed normally without blockage.

[0008] In one embodiment, the fixing assembly includes a hose clamp and a locking member. The locking member passes through the hose clamp and locks and fixes to the vibration sensor, thereby fixing the vibration sensor to the fixing assembly. The hose clamp is locked to the elbow so that the hose clamp fits tightly to the elbow, thereby allowing the vibration on the elbow to be transmitted to the vibration sensor.

[0009] In one embodiment, the transfer tank is equipped with a valve switch assembly and a detection sensor. The system controller controls the operation of the valve switch assembly and receives measurement data from the monitoring device and detection data from the detection sensor. The system controller combines the detection data from the detection sensor and the operating status of the valve switch assembly to determine the overall operating status of the equipment.

[0010] In one embodiment, when the system controller compares the actual acquired waveform with the basic waveform of the corresponding operating state, the system controller divides the acquired waveform into several small segments on an average basis according to a certain period, and compares the maximum value of each small segment with the maximum value of the basic waveform.

[0011] In one embodiment, the user page of the system controller displays three levels of elbow blockage, distinguished by color: when the elbow blockage is slight or relatively clear, the elbow blockage status is indicated in green on the user page of the system controller; when the elbow blockage is moderate, the elbow blockage status is indicated in yellow on the user page of the system controller; and when the elbow blockage is severe, the elbow blockage status is indicated in red on the user page of the system controller.

[0012] In one embodiment, a microphone is also included. The microphone is installed at the production site of the pneumatic transmission system. Initially, the basic audio range during normal production is input to the system controller. The microphone collects external noise signals and feeds them back to the system controller. The system controller compares the noise signals acquired by the microphone with the basic audio range to determine whether there is abnormally large noise. If so, the system controller determines that the data detected by the vibration sensor during that time period is invalid data.

[0013] In one embodiment, the basic audio range includes the audio range of the production site during three time periods: equipment standby, idling, and normal material conveying. The system controller compares the noise signal obtained by the microphone with the basic audio range corresponding to the time period during normal production.

[0014] In one embodiment, the transfer tank is a positive pressure sending tank, and the gas source is a gas storage tank.

[0015] The beneficial effects of the pneumatic transmission system with elbow blockage monitoring function of the present invention are as follows: by installing vibration sensors at the elbows of the conveying pipeline, the vibration value of the elbow is monitored by the vibration sensors during the conveying process. The system controller indirectly judges the blockage of the elbow based on the detection results of the vibration sensors. When the elbow is blocked, an alarm will be sounded in time to prevent the blockage from worsening. The blockage point can be accurately located. The overall control is simple, time-saving, labor-saving, cost-reducing and efficiency-enhancing, effectively ensuring the production process. Attached Figure Description

[0016] Figure 1 This is a connection diagram of the pneumatic transmission system with elbow blockage auscultation monitoring function according to the present invention;

[0017] Figure 2 for Figure 1 The diagram shows the structure of the vibration sensor when it is mounted on the elbow using a fixing assembly.

[0018] Figure 3 for Figure 2 The diagram shows the structure of the vibration sensor when it is installed with the fixed assembly. Detailed Implementation

[0019] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0020] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0021] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0022] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0023] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0024] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0025] Please see Figures 1 to 3 This invention provides a pneumatic transmission system with a bend blockage monitoring function for transporting powder particles. The pneumatic transmission system with bend blockage monitoring function includes an air source 40, a transfer tank 10, a silo 30, a conveying pipeline 20, a monitoring device 50, and a system controller 60. The conveying pipeline 20 connects the transfer tank 10 and the silo 30. The air source 40 provides power to transfer the powder on the transfer tank 10 to the silo 30 through the conveying pipeline 20. Due to the influence of the corner or the height position deviation of the interface on both sides, the conveying pipeline 20 is provided with a bend 21. During normal transmission, the powder in the conveying pipeline 20 will impact the bend 21 during the transmission process, thereby causing the bend 21 to vibrate.

[0026] The monitoring device 50 is used to monitor the degree of blockage at the elbow 21. In this embodiment, the transfer tank 10 is a positive pressure sending tank, the gas source 40 is a gas storage tank, and the transfer tank 10 is equipped with a valve switch group and a detection sensor. The system controller 60 controls the operation of the valve switch group, and the system controller 60 receives the measurement data from the monitoring device 50 and the detection data from the detection sensor. The system controller 60 combines the detection data from the detection sensor and the operating status of the valve switch group to determine the overall operating status of the equipment, such as standby, idling, or normal delivery.

[0027] The monitoring device 50 includes several vibration sensors 52 and a data acquisition station 51. The invention also includes several sets of fixing components 70, each set of fixing components 70 being installed on a bend 21. Each vibration sensor 52 is installed on a set of fixing components 70. The data acquisition station 51 is used to collect data from different vibration sensors 52 and feed the collected data back to the system controller 60.

[0028] In this embodiment, each set of fixing components 70 includes a hose clamp 71 and a locking member 72. The locking member 72 passes through the hose clamp 71 and is locked and fixed to the vibration sensor 52, thereby fixing the vibration sensor 52 on the fixing component 70. The hose clamp 71 is locked on the elbow 21, so that the hose clamp 71 and the elbow 21 fit tightly together, thereby allowing the vibration on the elbow 21 to be transmitted to the vibration sensor 52.

[0029] Initially, the number, number, and location information of the vibration sensors 52 are entered into the system controller 60. The system controller 60 also enters the basic waveforms output by each vibration sensor 52 under different states. The basic waveforms include a first state waveform, a second state waveform, and a third state waveform. The first state waveform is the output waveform of the vibration sensor 52 when the equipment is in standby mode and the elbow 21 is not vibrating, at which point the waveform is at its lowest point. The second state waveform is the output waveform of the vibration sensor 52 when the equipment is running empty. The third state waveform is the output waveform of the vibration sensor 52 when the material starts to be conveyed and is conveyed normally without blockage.

[0030] During normal testing, the system controller 60 determines the blockage status of the bend pipe using the following methods:

[0031] The system controller 60 combines the detection data from the detection sensors and the working status of the valve switch group to determine the overall operating status of the equipment and displays it on the user page of the system controller 60.

[0032] Vibration sensors 52 on each bend 21 collect vibration values ​​of the bends 21 on the conveying pipeline 20 and feed them back to the system controller 60 through the data acquisition station 51. The system controller 60 converts the vibration values ​​of the vibration sensors 52 into waveforms.

[0033] The system controller 60 compares the actual acquired waveform with the basic waveform of the same stage, calculates the difference, and determines the degree of blockage of the elbow 21 based on the magnitude of the difference. This difference is then displayed on the user page of the system controller 60. If the difference exceeds a set value, an alarm is triggered. Specifically, the user page of the system controller 60 displays three levels of blockage of the elbow 21, distinguished by color. For example, if the blockage of the elbow 21 is slight or relatively clear, the user page displays a green indicator; if the blockage is moderate, a yellow indicator; and if the blockage is severe, a red indicator. In this case, the system controller 60 issues an alarm, and the operator can choose to stop the equipment for maintenance before resuming production.

[0034] In the above steps, when the system controller 60 compares the actual acquired waveform with the basic waveform of the same stage, the system controller 60 divides the acquired waveform into several small segments on an average basis according to a certain period, and compares the maximum value of each small segment of the waveform with the maximum value of the basic waveform.

[0035] In addition, to further reduce the impact of external factors on the detection results of vibration sensor 52, the pneumatic transmission system with elbow blockage auscultation monitoring function of the present invention also includes a microphone 80. The microphone 80 is installed at the production site of the pneumatic transmission system. Initially, the basic audio range during normal production is input to the system controller 60, specifically including the audio range of the production site during three time periods: equipment standby, idling, and normal material conveying. During production, the microphone 80 collects external noise signals and feeds them back to the system controller 60. The system controller 60 compares the noise signals acquired by the microphone 80 with the basic audio range of the corresponding time period during normal production to determine whether there is any abnormally large noise (such as machine maintenance noise, abnormal machine noise, etc.). If so, the system controller 60 determines that the data detected by vibration sensor 52 during that time period is invalid data.

[0036] The beneficial effects of the pneumatic transmission system with elbow blockage monitoring function of the present invention are as follows: By installing a vibration sensor 52 at the elbow 21 of the conveying pipeline 20, the vibration value of the elbow 21 is monitored by the vibration sensor 52 during the conveying process. The system controller 60 indirectly judges the blockage of the elbow 21 based on the detection result of the vibration sensor 52. When the elbow 21 is blocked, an alarm will be set in time to prevent the blockage from aggravating. The blockage point can be accurately located. The overall control is simple, time-saving, labor-saving, cost-reducing and efficiency-enhancing, and effectively ensures the production process.

[0037] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0038] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A pneumatic transmission system with a stethoscope monitoring function for elbow blockage, characterized in that, The system includes an air source, a transfer tank, a silo, a conveying pipeline, a monitoring device, and a system controller. The conveying pipeline connects the transfer tank and the silo. The air source provides power to transfer the powder on the transfer tank to the silo through the conveying pipeline. The conveying pipeline is equipped with elbows. The monitoring device includes several vibration sensors and a data acquisition station. The pneumatic transmission system with elbow blockage monitoring function also includes several sets of fixed components. Each set of fixed components is installed on a corresponding elbow. Each vibration sensor is installed on a corresponding set of fixed components. The data acquisition station is used to collect data from different vibration sensors and feed the collected data back to the system controller. Initially, the number, number and location information of the vibration sensors are entered into the system controller. The basic waveforms output by each vibration sensor when the device is running in different states are also entered into the system controller. During normal testing, the system controller determines the overall operating status of the equipment; vibration sensors on each bend collect the vibration values ​​of the bends on the conveying pipeline and feed them back to the system controller through the data acquisition station. The system controller converts the vibration values ​​of the vibration sensors into waveforms; the system controller compares the actual collected waveforms with the basic waveforms of the corresponding operating status, obtains the difference, and determines the degree of blockage of the bend based on the magnitude of the difference. The pneumatic transmission system with elbow blockage auscultation monitoring function also includes a microphone. The microphone is installed at the production site of the pneumatic transmission system. Initially, the basic audio range during normal production is input into the system controller. The microphone collects external noise signals and feeds them back to the system controller. The system controller compares the noise signals acquired by the microphone with the basic audio range to determine whether there is abnormally large noise. If so, the system controller determines that the data detected by the vibration sensor during that time period is invalid data.

2. The pneumatic transmission system with elbow blockage auscultation monitoring function according to claim 1, characterized in that, The basic waveforms include a first state waveform, a second state waveform, and a third state waveform. The first state waveform is the output waveform of the vibration sensor when the equipment is in standby mode and the elbow is not vibrating, at which point the waveform is at its lowest point. The second state waveform is the output waveform of the vibration sensor when the equipment is running empty. The third state waveform is the output waveform of the vibration sensor when the material is being conveyed normally and there is no blockage.

3. The pneumatic transmission system with elbow blockage auscultation monitoring function according to claim 1, characterized in that, The fixing assembly includes a hose clamp and a locking member. The locking member passes through the hose clamp and locks and fixes to the vibration sensor, thereby fixing the vibration sensor to the fixing assembly. The hose clamp is locked to the elbow, so that the hose clamp and the elbow fit tightly together, thereby allowing the vibration on the elbow to be transmitted to the vibration sensor.

4. The pneumatic transmission system with elbow blockage auscultation monitoring function according to claim 1, characterized in that, The transfer tank is equipped with a valve switch assembly and a detection sensor. The system controller controls the operation of the valve switch assembly and receives measurement data from the monitoring device and detection data from the detection sensor. The system controller combines the detection data from the detection sensor and the operating status of the valve switch assembly to determine the overall operating status of the equipment.

5. The pneumatic transmission system with elbow blockage auscultation monitoring function according to claim 1, characterized in that, When the system controller compares the actual acquired waveform with the basic waveform of the corresponding operating state, the system controller divides the acquired waveform into several small segments on an average basis according to a certain period, and compares the maximum value of each small segment with the maximum value of the basic waveform.

6. The pneumatic transmission system with elbow blockage auscultation monitoring function according to claim 1, characterized in that, The user page of the system controller displays three levels of elbow blockage, distinguished by color: green for slight or relatively clear blockage, yellow for moderate blockage, and red for severe blockage.

7. The pneumatic transmission system with elbow blockage auscultation monitoring function according to claim 1, characterized in that, The basic audio range includes the audio range of the production site during three time periods: equipment standby, idling, and normal material conveying. The system controller compares the noise signal obtained by the microphone with the basic audio range of the corresponding time period during normal production.

8. The pneumatic transmission system with elbow blockage auscultation monitoring function according to claim 1, characterized in that, The transfer tank is a positive pressure sending tank, and the gas source is a gas storage tank.

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