Gas pipeline on-off display device and using method thereof

Abstract

The invention discloses a gas pipeline on-off display device and a using method thereof.The gas pipeline on-off display device is characterized in that an upper shell and a lower shell are coaxially arranged up and down, a rotating shaft is vertically arranged in the middle of inner cavities of the upper shell and the lower shell, an upper impeller and a lower impeller are arranged on the rotating shaft in a spaced mode and located in the upper shell, and a permanent magnet stator is arranged on the inner cavity wall of the lower shell; the armature winding is arranged on the rotating shaft and located in the lower shell, the lamp bead is arranged on the outer surface of the lower shell and powered by the armature winding, and an air inlet and an air outlet are formed in the two sides of the upper shell respectively. According to the method, the device is connected into a detected pipeline, and a gas medium pushes an upper impeller and a lower impeller to rotate, so that power is supplied to a lamp bead through an armature winding; the on-off condition of the detected pipeline is judged according to the brightness of the lamp beads, human intervention is performed according to the on-off condition of the detected pipeline, and the blockage state of the detected pipeline is eliminated in time. The device and method are easy and convenient to install and convenient to maintain, the on-off state of the pipeline is clearly displayed in real time, the existing state of equipment is mastered, and the equipment is prevented from being out of service or potential safety hazards of personnel are avoided.

Description

Technical Field

[0001] This invention relates to the field of detection technology, and in particular to a gas pipeline on / off display device and its usage method. Background Technology

[0002] Gas flow detection devices are indispensable flow control and data acquisition equipment in industrial production. For gas flow detection in pipes with small diameters, small ball flow meters or digital flow display devices are typically used. Small ball flow meters are rotor flow meters that use a small ball as the indicating element. For example, a gas rotor flow meter reflects the flow value by the positional change of a small ball in a tapered tube, providing a direct visual display of the flow rate. Digital flow display devices are intelligent instruments that can acquire and display fluid flow parameters in real time in a digital format. They typically have instantaneous and cumulative flow display functions and can integrate control, alarm, and data communication capabilities.

[0003] In practical use, both types of flow meters have their own characteristics and advantages, as well as unavoidable drawbacks. Small ball flow meters are simple to install, require no additional power supply, and are relatively inexpensive. However, the ball can easily become stuck when there are impurities in the gas, and the flow indication is difficult to see in the dark. When installed in harsh or toxic gas environments, prolonged observation can also pose safety hazards and cause unnecessary accidents. Digital flow display devices offer better accuracy, can collect data for centralized control, and can quickly read values ​​to understand the flow status. However, the equipment is expensive, requires initial cable laying, and necessitates subsequent parameter calibration. Both initial and ongoing costs are high, especially in locations where signal acquisition is not required, as the device's primary signal acquisition function is idle, resulting in a relatively low cost-effectiveness.

[0004] For existing flow meters used in on-site inspections that are easy to observe, install, cost-effective, durable, and not prone to failure, and for which high accuracy and data logging are not required, it is impossible to find a suitable flow meter that meets these needs, given that current flow meters are marketed primarily on accuracy.

[0005] For example, existing compressed air dehumidifiers that have been in use for a long time all have more or less problems, and cannot completely eliminate the moisture in the compressed air. Some pipes will condense water or oil due to drastic changes in ambient temperature. In winter, when the ambient temperature is low, the pipes will freeze. When the compressed air pipes freeze and the flow rate decreases, the corresponding equipment will fail to operate or activate its safety mechanism. If it is discovered in time, the problem can be eliminated in time by human intervention.

[0006] Therefore, based on the existing site environment requirements, a pipeline on / off status monitoring device is needed that ensures the required functions while also being easy to install, durable, and easy to observe, so as to alert production safety, reduce potential hazards, and significantly improve the safety of both people and materials. Summary of the Invention

[0007] The technical problem to be solved by the present invention is to provide a gas pipeline on / off display device and its usage method. This device and method overcome the defects of traditional flow devices in special environments of production sites, are easy to install and maintain, clearly display the on / off status of the pipeline in real time, grasp the current status of the equipment, and avoid the occurrence of equipment downtime or personnel safety hazards.

[0008] To solve the above-mentioned technical problems, the gas pipeline on / off display device of the present invention includes an upper housing, a lower housing, an upper impeller, a lower impeller, a permanent magnet stator, an armature winding, a rotating shaft, and LED beads. The upper housing and the lower housing are arranged coaxially. The rotating shaft is vertically centered in the inner cavity of the upper housing and the lower housing. The upper impeller and the lower impeller are spaced apart from the rotating shaft and located inside the upper housing. The permanent magnet stator is located on the inner wall of the lower housing. The armature winding is located on the rotating shaft and inside the lower housing. The bottom of the lower housing is provided with a brush connected to the commutator of the armature winding. The LED beads are embedded and fixed on the outer surface of the lower housing and connected to the brush through wires. The upper housing has an air inlet and an air outlet on both sides.

[0009] Furthermore, the upper and lower impellers are mounted on the rotating shaft via bearings, with the inner ring of the bearing fixed to the rotating shaft and the outer ring of the bearing fixed to the top and bottom surfaces of the upper housing.

[0010] Furthermore, the upper and lower shells are circular shells, and the air inlet and outlet are located on both sides of the upper shell along the tangent of the outer circle of the circular shell.

[0011] Furthermore, the air inlet and air outlet are respectively provided with pipe thread joints.

[0012] Furthermore, the lamp bead is a light-emitting diode lamp bead and is embedded in the outer surface of the lower housing with silicone.

[0013] A method of using the above-mentioned gas pipeline on / off display device includes the following steps: Step 1: Connect the gas pipeline on / off display device to the pipeline under test through the inlet and outlet. The gas medium in the pipeline under test flows in from the inlet and out from the outlet. During this process, the gas medium drives the upper and lower impellers to rotate. Step 2: The rotation of the upper and lower impellers drives the armature winding to rotate via the shaft. The rotation of the armature winding cuts the magnetic lines of force of the permanent magnet stator to generate current and supply power to the lamp beads. Step 3: If the lamp is lit, it indicates that the gas medium is driving the upper and lower impellers to rotate at high speed, the armature winding is providing sufficient power to the lamp, and the tested pipeline is unobstructed; if the lamp is not lit, it indicates that the upper and lower impellers are stopped, the armature winding is not outputting power, and the tested pipeline is blocked. Step 4: If the LED light is dim or flickering, it indicates that the upper and lower impellers are rotating slowly, the armature winding output is weak, and the tested pipe is slightly blocked. Step 5: The inspection personnel observe the brightness of the LED beads from nearby or distant locations, determine the continuity of the inspected pipeline based on the brightness of the LED beads, and intervene manually based on the continuity of the inspected pipeline to promptly eliminate any blockages.

[0014] Because the gas pipeline on / off display device and its usage method of the present invention adopt the above-mentioned technical solution, namely, the upper and lower housings of the device are arranged coaxially, the rotating shaft is vertically centered in the inner cavity of the upper and lower housings, the upper and lower impellers are spaced apart on the rotating shaft and located inside the upper housing, the permanent magnet stator is located on the inner wall of the lower housing cavity, the armature winding is located on the rotating shaft and located inside the lower housing, the LED is located on the outer surface of the lower housing and is powered by the armature winding, and the upper housing has an air inlet and an air outlet on both sides. This method connects the device to the pipeline being inspected, the gas medium drives the upper and lower impellers to rotate, thereby powering the LED through the armature winding; the on / off status of the inspected pipeline is judged based on the brightness of the LED, and manual intervention is performed based on the on / off status of the inspected pipeline to promptly eliminate the blockage. This device and method overcome the defects of traditional flow devices in special production environments, are easy to install and maintain, clearly display the on / off status of the pipeline in real time, monitor the current status of the equipment, and avoid equipment downtime or personnel safety hazards. Attached Figure Description

[0015] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments: Figure 1 This is a schematic diagram of the gas pipeline on / off display device of the present invention; Figure 2 This is a schematic diagram of the external shape of the device. Detailed Implementation

[0016] Implementation, for example Figure 1 and Figure 2As shown, the gas pipeline on / off display device of the present invention includes an upper housing 1, a lower housing 2, an upper impeller 3, a lower impeller 4, a permanent magnet stator 5, an armature winding 6, a rotating shaft 7, and an LED bead 8. The upper housing 1 and the lower housing 2 are arranged coaxially. The rotating shaft 7 is vertically centered in the inner cavity of the upper housing 1 and the lower housing 2. The upper impeller 3 and the lower impeller 4 are spaced apart from the rotating shaft 7 and located inside the upper housing 1. The permanent magnet stator 5 is located on the inner wall of the lower housing 2. The armature winding 6 is located on the rotating shaft 7 and inside the lower housing 2. The bottom of the lower housing 2 is provided with a brush connected to the commutator of the armature winding 6. The LED bead is embedded and fixed on the outer surface of the lower housing 2 and connected to the brush through a wire. The upper housing 1 is provided with an air inlet 11 and an air outlet 12 on both sides.

[0017] The armature winding is a coil group embedded in the slots of the rotor core, which is responsible for cutting magnetic lines of force and generating induced electromotive force. The commutator is a mechanical rectifier connected to the armature winding. By cooperating with the brushes, it ensures that the current direction is switched in time, thereby outputting a unidirectional voltage to power the lamp beads.

[0018] Preferably, the upper impeller 3 and the lower impeller 4 are mounted on the rotating shaft 7 via bearings 9, with the inner ring of the bearing 9 fixed to the rotating shaft 7 and the outer ring of the bearing 9 fixed to the top and bottom surfaces of the upper housing 1.

[0019] Preferably, the upper shell 1 and the lower shell 2 are circular shells, and the air inlet 11 and the air outlet 12 are located on both sides of the upper shell 1 along the tangent of the outer circle of the circular shell.

[0020] Preferably, the air inlet 11 and the air outlet 12 are respectively provided with pipe thread connectors 13.

[0021] Preferably, the lamp bead 8 is a light-emitting diode lamp bead and is embedded in the outer surface of the lower housing with silicone.

[0022] A method of using the above-mentioned gas pipeline on / off display device includes the following steps: Step 1: Connect the gas pipeline on / off display device to the pipeline under test through the inlet and outlet. The gas medium in the pipeline under test flows in from the inlet and out from the outlet. During this process, the gas medium drives the upper and lower impellers to rotate. Step 2: The rotation of the upper and lower impellers drives the armature winding to rotate via the shaft. The rotation of the armature winding cuts the magnetic lines of force of the permanent magnet stator to generate current and supply power to the lamp beads. Step 3: If the lamp is lit, it indicates that the gas medium is driving the upper and lower impellers to rotate at high speed, the armature winding is providing sufficient power to the lamp, and the tested pipeline is unobstructed; if the lamp is not lit, it indicates that the upper and lower impellers are stopped, the armature winding is not outputting power, and the tested pipeline is blocked. Step 4: If the LED light is dim or flickering, it indicates that the upper and lower impellers are rotating slowly, the armature winding output is weak, and the tested pipe is slightly blocked. Step 5: The inspection personnel observe the brightness of the LED beads from nearby or distant locations, determine the continuity of the inspected pipeline based on the brightness of the LED beads, and intervene manually based on the continuity of the inspected pipeline to promptly eliminate any blockages.

[0023] This device generates a voltage when gas flows, clearly indicating the on / off status of the pipeline. It can be installed on any small-diameter pipeline under inspection. When gas flows, the generated voltage illuminates the LED, allowing inspection personnel to observe the light from nearby or distant locations and know the on / off status of the gas pipeline. This enables them to promptly understand the current status of the equipment. If the pipeline is blocked, maintenance personnel can be notified in time to handle the situation, avoiding equipment downtime or personnel safety hazards, and preventing accidents that affect normal and safe operation.

[0024] This device is easy to install and has low maintenance costs. It ensures clear display of pipeline flow status, i.e., on / off status, with prominent indicators, allowing observation in any environmental condition. Both the inlet and outlet of the device use threaded pipe fittings to connect to the inspected pipeline, accommodating various sizes of pipe fittings. This device can be installed individually on independent equipment gas pipelines or centrally on distribution branches of equipment pipelines for convenient centralized monitoring. Centralized installation allows for simultaneous observation of gas usage in various locations, reducing the working time of inspection personnel and increasing work efficiency.

[0025] This device utilizes the potential energy of gas flowing within a pipe, converting a small portion of this potential energy into electrical energy to power LEDs, thus indicating the gas flow status (LEDs illuminate when flowing and remain still). A generator consisting of a low-power permanent magnet stator and armature winding drives the LEDs, reducing energy consumption. By aligning the inlet and outlet along the tangent of the upper casing, the gas flow area is reduced, increasing inlet pressure and velocity for the same intake volume, thereby enhancing the driving force on the impeller. The dual-impeller configuration allows for staged utilization of gas energy, reducing airflow dynamic losses, optimizing impeller speed, increasing airflow path, reducing turbulence, smoothing the airflow path, reducing energy loss, improving mechanical stability, distributing axial force and torque, reducing mechanical stress on individual impellers, extending bearing and shaft life, reducing wear-induced fault tolerance, and compensating for some energy loss, thus improving impeller fault tolerance.

[0026] This device and method can be used to determine the flow of compressed air in pipelines, confirm whether the air usage of equipment is normal, and determine whether there are foreign objects blocking the compressed air pipeline (such as blockage caused by water vapor freezing in winter). It can be installed on the purging air pipeline to detect the purging status (when blocked, the airflow is static and not flowing). It can also be installed on the compressed air pressure sampling pipe to detect leaks (if there is a leak, gas flow will occur). Installed at the cylinder exhaust end, it can determine whether the cylinder of a pneumatic actuator with air-on or air-off operation has damaged seals or diaphragm leaks (some pneumatic actuators are not easily accessible, making it difficult for maintenance personnel to determine this).

[0027] For example, with air compressors, compressed air may contain moisture or oil due to quality issues with the compressor or dehumidifier. The gas needs to be purged periodically during use, and under certain environmental conditions (when the ambient temperature is below 0°C), the drain valve remains open. This device is installed in series on the instrument air pipeline of the air compressor, slightly opening the corresponding drain valve. By detecting the pipeline's on / off status, this device ensures the proper purging process and the flow rate within the pipeline.

[0028] This device is installed on the nitrogen purging pipe or supply pipe. The light illuminates during purging or supply and turns off when purging or supply stops. It is used to detect leaks in the purging pipe or supply pipe. During routine inspections, it can be used to determine if the purging gas valve is closed or if there are any leaks.

[0029] This device is installed on gas discharge valves or gas sampling pipelines to detect whether there is a leak in the pipeline or whether the discharge valve is closed.

[0030] This device is installed on the air pipe of a single-intake cylinder to detect whether there is a cylinder-penetrating leak caused by damage to the sealing ring or diaphragm when the air is opened or closed. It can also be installed in locations that are difficult to inspect, making it convenient for subsequent inspection and maintenance.

[0031] This device is installed on the gas emission pipeline. During emission, a flow rate is generated, and the indicator light remains on; the light turns off when emission ends. During gas sampling, the gas sampling tube is under static pressure and there is no flow rate. If the indicator light on this device is on, there is a leak in the sampling pipeline. It is used to detect abnormal conditions in the gas emission or sampling tube.

Claims

1. A gas pipeline on-off display device, characterized by: The utility model relates to a kind of gas pipeline through and off display device, including upper shell, lower shell, upper impeller, lower impeller, permanent magnet stator, armature winding, rotating shaft and lamp bead, the upper shell and lower shell are coaxially arranged, the rotating shaft is vertically centrally located in the upper shell and lower shell inner cavity, the upper impeller and lower impeller are spaced apart and located in the upper shell of the rotating shaft, the permanent magnet stator is located in the lower shell inner cavity wall, the armature winding is located in the lower shell of the rotating shaft, the lower shell bottom is equipped with the brush of the commutator of the armature winding, the lamp bead is embedded and fixed on the lower shell outer surface and is connected with the brush by wire, the upper shell both sides are respectively equipped with air inlet and air outlet.

2. The gas pipe on-off display device according to claim 1, characterized by: The upper impeller and lower impeller are arranged on the rotating shaft through bearings, the inner ring of the bearing is fixed on the rotating shaft, and the outer ring of the bearing is fixed on the top surface and bottom surface of the upper shell.

3. The gas pipe on-off display device according to claim 1 or 2, characterized by: The upper shell and lower shell are circular shells, and the air inlet and air outlet are arranged on the two sides of the upper shell along the tangent of the outer circle of the circular shell.

4. The gas pipe on-off display device according to claim 3, characterized by: The air inlet and air outlet are respectively provided with pipe threaded joints.

5. The gas pipe on-off display device according to claim 3, characterized by: The lamp bead is a light-emitting diode lamp bead and is embedded on the outer surface of the lower shell by silica gel.

6. A method of using a gas pipe break display device according to any one of claims 1 to 5, characterized in that The utility model relates to a kind of gas pipeline through and off display device, including following steps: Step one, gas pipeline through and off display device is connected to the pipeline to be detected through air inlet and air outlet, the gas medium in the pipeline to be detected flows from air inlet to air outlet, during which, the gas medium drives the upper impeller and lower impeller to rotate; Step two, the upper impeller and lower impeller rotate to drive the armature winding to rotate through the rotating shaft, the armature winding cuts the magnetic force line of the permanent magnet stator to generate current and supply power to the lamp bead; Step three, if the lamp bead is lit, it indicates that the gas medium drives the upper impeller and lower impeller to rotate at high speed, the armature winding provides sufficient power to the lamp bead, and the pipeline to be detected is unobstructed; if the lamp bead is not lit, it indicates that the upper impeller and lower impeller stop rotating, and the armature winding has no power output, so the pipeline to be detected is blocked; Step four, if the lamp bead emits dim or flickering light, it indicates that the upper impeller and lower impeller rotate slowly, and the armature winding outputs weak power, so the pipeline to be detected is slightly blocked; Step five, the inspector observes the brightness of the lamp bead nearby or remotely, judges the through and off condition of the pipeline to be detected according to the brightness of the lamp bead, carries out artificial intervention according to the through and off condition of the pipeline to be detected, and timely eliminates the blocked state of the pipeline to be detected.

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