Air pressure control method, device and equipment of filter rod air conveying system and storage medium

Abstract

The application discloses a kind of filter rod air conveying system's air pressure control method, device, equipment and storage medium, relate to filter rod air conveying control technology, this method includes: in response to the start signal of filter rod air conveying system, obtain the outlet air pressure value of transmitting end;According to transmitting end outlet air pressure value and transmitting end air pressure standard interval determine whether transmitting end air pressure is abnormal;If transmitting end air pressure is abnormal, transmitting end air pressure abnormality alarm is carried out;Receiving end speed value is obtained;According to receiving end speed value and receiving end speed standard interval determine whether receiving end speed is abnormal;If receiving end speed is abnormal, receiving end speed abnormality alarm is carried out;Pressure relief end air pressure value is obtained, according to pressure relief end air pressure value and pressure relief end air pressure standard interval determine whether pressure relief end air pressure is abnormal;If pressure relief end air pressure is abnormal, pressure relief end air pressure abnormality alarm is carried out.Can realize the automatic fast detection of air conveying pipeline, improve the maintenance efficiency of air conveying pipeline.

Description

Technical Field

[0001] This invention relates to the field of filter rod air delivery control technology, and in particular to a method, apparatus, equipment and storage medium for air pressure control of a filter rod air delivery system. Background Technology

[0002] The filter rod pneumatic conveying system is a bridge in the cigarette industry to realize the automatic remote pneumatic conveying of filter rods from the transmitter to the cigarette machine, replacing manual transfer of filter rods.

[0003] In actual production, due to the long distance of the filter rod air delivery pipeline, the air pressure of the filter rod remotely is affected by distance, air tightness, residues, etc., which can easily cause problems such as unstable air pressure of the filter rod air delivery and abnormal speed of the filter rod conveying line, leading to equipment failure and filter rod quality defects, and affecting the filter rod air delivery efficiency.

[0004] Currently, the pneumatic conveying pipeline is maintained through regular manual inspections. Improving the efficiency of this maintenance is a pressing issue. Summary of the Invention

[0005] This invention provides a method, apparatus, equipment, and storage medium for controlling the air pressure of a filter rod pneumatic conveying system, in order to solve the problem of low maintenance efficiency when manually and periodically inspecting pneumatic conveying pipelines.

[0006] According to one aspect of the present invention, a method for controlling the air pressure of a filter rod air delivery system is provided, characterized in that the filter rod air delivery system includes a transmitting end, a receiving end, and a pressure relief end, and the method includes:

[0007] In response to the start signal of the filter rod air delivery system, the outlet air pressure value of the transmitter is acquired, wherein the outlet air pressure value of the transmitter is the measured value of the outlet air pressure of the transmitter;

[0008] The transmitter outlet pressure value and the standard range of transmitter pressure are used to determine whether the transmitter pressure is abnormal; if the transmitter pressure is abnormal, an alarm for abnormal transmitter pressure is issued.

[0009] Obtain the velocity measurement value at the receiving end, wherein the velocity measurement value at the receiving end is the measured value of the air delivery speed of the filter rod at the receiving end inlet;

[0010] The receiver speed is determined to be abnormal based on the receiver speed measurement value and the receiver speed standard range; if the receiver speed is abnormal, an alarm for abnormal receiver speed is issued.

[0011] Obtain the pressure value at the pressure relief end, wherein the pressure value at the pressure relief end is a measured value of the pressure at the outlet of the pressure relief end;

[0012] Determine whether the pressure at the pressure relief end is abnormal based on the pressure value at the pressure relief end and the standard range of pressure at the pressure relief end; if the pressure at the pressure relief end is abnormal, issue an alarm for abnormal pressure at the pressure relief end.

[0013] According to another aspect of the present invention, a pressure control device for a filter rod air delivery system is provided, characterized in that the filter rod air delivery system includes a transmitting end, a receiving end, and a pressure relief end, the device comprising:

[0014] The transmitter outlet air pressure value acquisition unit is used to acquire the transmitter outlet air pressure value in response to the start signal of the filter rod air delivery system. The transmitter outlet air pressure value is the measured value of the transmitter outlet air pressure.

[0015] The transmitter detection unit is used to determine whether the transmitter pressure is abnormal based on the transmitter outlet pressure value and the standard range of transmitter pressure; if the transmitter pressure is abnormal, an alarm for abnormal transmitter pressure is issued.

[0016] The receiving end speed measurement value acquisition unit is used to acquire the receiving end speed measurement value, which is the measured value of the air delivery speed of the filter rod at the receiving end inlet;

[0017] The receiver detection unit is used to determine whether the receiver speed is abnormal based on the receiver speed measurement value and the receiver speed standard range; if the receiver speed is abnormal, an alarm for abnormal receiver speed is issued.

[0018] A pressure relief end air pressure value acquisition unit is used to acquire the pressure relief end air pressure value, wherein the pressure relief end air pressure value is the measured value of the air pressure at the pressure relief end outlet;

[0019] The pressure relief end detection unit is used to determine whether the pressure relief end is abnormal based on the pressure relief end pressure value and the pressure relief end pressure standard range; if the pressure relief end pressure is abnormal, an alarm for abnormal pressure relief end pressure is issued.

[0020] According to another aspect of the present invention, a pressure control device for a filter rod air delivery system is provided, characterized in that the filter rod air delivery system includes a transmitting end, a receiving end, and a pressure relief end, an air delivery pipe is provided between the transmitting end and the pressure relief end, and an air delivery pipe is provided between the pressure relief end and the receiving end, and the device includes: a detection module, a control module, a display module, and an execution module;

[0021] The detection module includes a transmitter pressure sensor, a pressure relief sensor, and a receiver photoelectric switch.

[0022] The transmitting end pressure sensor is connected to the transmitting end; the pressure relief end pressure sensor is connected to the pressure relief end; the receiving end photoelectric switch is connected to the receiving end;

[0023] The transmitting end pressure sensor, the pressure relief end pressure sensor, and the receiving end photoelectric switch are respectively connected to the control module;

[0024] The control module is also connected to the display module and the execution module; the controller is used to execute the air pressure control method of the filter rod air delivery system according to any embodiment of the present invention.

[0025] According to another aspect of the present invention, a computer-readable storage medium is provided, the computer-readable storage medium storing computer instructions for causing a processor to execute and implement the air pressure control method of the filter rod air delivery system according to any embodiment of the present invention.

[0026] The technical solution of this invention includes a filter rod air delivery system comprising a transmitter, a receiver, and a pressure relief end. In response to a start signal from the filter rod air delivery system, the system acquires the outlet air pressure value of the transmitter, which is a measured value of the outlet air pressure. It then determines whether the transmitter air pressure is abnormal based on the outlet air pressure value and a standard range for transmitter air pressure. If the transmitter air pressure is abnormal, an alarm is triggered. Next, it acquires the velocity measurement value of the receiver, which is a measured value of the air delivery speed of the filter rod at the receiver inlet. It then determines whether the receiver speed is abnormal based on the velocity measurement value and a standard range for receiver speed. If the receiver speed is abnormal, an alarm is triggered. Finally, it acquires the pressure value of the pressure relief end, which is a measured value of the air pressure at the outlet of the pressure relief end. It then determines whether the pressure relief end is abnormal based on the pressure relief end pressure value and a standard range for pressure relief end. If the pressure relief end is abnormal, an alarm is triggered. Compared to the current manual maintenance of pneumatic conveying ducts, the technical solution provided by this invention can detect the air pressure and filter rod velocity in the pneumatic conveying duct at the transmitting end, depressurization end, and receiving end. Based on the detected outlet air pressure value at the transmitting end, the velocity value at the receiving end, and the air pressure value at the depressurization end, the status of the transmitting end, receiving end, and depressurization end is detected respectively, and alarms are issued when abnormalities are found. This achieves automated and rapid inspection of pneumatic conveying ducts, improving the maintenance efficiency of pneumatic conveying ducts.

[0027] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of the present invention, nor is it intended to limit the scope of the invention. Other features of the invention will become readily apparent from the following description. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1This is a schematic diagram of the air pressure control device of a filter rod air delivery system provided in an embodiment of the present invention;

[0030] Figure 2 This is a schematic flowchart of a pressure control method for a filter rod air delivery system provided in an embodiment of the present invention;

[0031] Figure 3 This is a schematic flowchart of another air pressure control method for a filter rod air delivery system provided in an embodiment of the present invention;

[0032] Figure 4 This is a schematic diagram of the air pressure control device of the filter rod air delivery system provided in an embodiment of the present invention;

[0033] Figure 5 This is a schematic diagram of the air pressure control device for another filter rod air delivery system implementing an embodiment of the present invention;

[0034] Figure 6 This is a schematic diagram of the transmitter component structure provided in an embodiment of the present invention;

[0035] Figure 7 This is a schematic diagram of the pressure relief end assembly structure provided in an embodiment of the present invention;

[0036] Figure 8 This is a schematic diagram of the receiving end component structure provided in an embodiment of the present invention;

[0037] Figure 9 This is an exploded view of the receiving end component provided in an embodiment of the present invention. Detailed Implementation

[0038] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0039] It should be noted that the terms "comprising" and "having" and any variations thereof in the specification, claims and accompanying drawings of this invention are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such processes, methods, products or devices.

[0040] The filter rod pneumatic conveying system is a bridge in the cigarette industry to realize the automatic remote pneumatic conveying of filter rods from the transmitter to the cigarette machine, replacing manual transfer of filter rods.

[0041] In actual production, due to the long distance of the filter rod air delivery pipeline, the air pressure of the filter rod remotely is affected by distance, air tightness, residues, etc., which can easily cause problems such as unstable air pressure of the filter rod air delivery and abnormal speed of the filter rod conveying line, leading to equipment failure and filter rod quality defects, and affecting the filter rod air delivery efficiency.

[0042] Currently, the mainstream ZF25 model filter rod transmitter and receiver units in the industry cannot directly provide feedback on the operating status of the filter rod air conveying system. The lack of process control during the filter rod air conveying process makes it difficult for maintenance personnel to diagnose faults, resulting in low maintenance efficiency and long repair times. Furthermore, due to the long distance of the air conveying duct, some faults require multiple maintenance personnel to diagnose simultaneously, significantly impacting equipment maintenance efficiency.

[0043] The pneumatic control method for the filter rod pneumatic conveying system provided in this invention can effectively solve the problem of lack of process control in the current filter rod pneumatic conveying process and improve equipment operating efficiency.

[0044] The air pressure control method for the filter rod air delivery system provided in this invention measures the pressure and velocity values ​​related to the filter rod air delivery pressure in real time, realizing real-time monitoring, feedback, and display of the filter rod air delivery pressure, thereby improving the visualization and intelligence of the filter rod air delivery system. Addressing the lack of anomaly alarm function in the filter rod air delivery system and the inconvenience of maintenance and adjustment due to the long overall span of the air delivery pipeline, this invention adds anomaly alarms related to air delivery pressure and velocity, as well as automatic pressure adjustment at the pressure relief end, achieving the effects of improving maintenance efficiency, reducing maintenance time, and enhancing the maintenance efficiency of the filter rod air delivery system.

[0045] Figure 1 This is a schematic diagram of the air pressure control device for a filter rod air delivery system provided in an embodiment of the present invention, including a detection module 100, a control module 200, a display module 300, and an execution module 400.

[0046] The detection module 100 monitors the transmitting end air pressure, receiving end speed, and depressurization end air pressure in real time, and feeds the monitored data back to the control module 200 in real time. After receiving the information output by the detection module 100, the control module 200 outputs a signal to the execution module 400 to drive the execution module 400 to perform the task. On the other hand, it displays the processed information, including real-time measurement values, fault signals, and the operating status of the air conveying system, in real time on the display module 300. The display module 300 displays the information output by the control module 200 in real time, and can modify the control range of the control module 200 by modifying the standard range settings for transmitting end air pressure, receiving end speed, and depressurization end air pressure, etc., to achieve closed-loop control of the air pressure of the filter rod air conveying system, improve the process control accuracy of the filter rod air conveying system, reduce the number of equipment downtimes due to failure, and achieve the goal of improving the efficiency of filter rod air conveying.

[0047] Figure 2 This is a flowchart illustrating a pneumatic pressure control method for a filter rod pneumatic conveying system according to an embodiment of the present invention. This embodiment is applicable to situations requiring real-time monitoring and maintenance of filter rod pneumatic conveying pipelines. The method can be executed by a pneumatic pressure control device for the filter rod pneumatic conveying system, which can be implemented in hardware and / or software. The filter rod pneumatic conveying system includes a transmitting end, a receiving end, and a pressure relief end. Figure 2 As shown, the method includes:

[0048] Step S101: In response to the start signal of the filter rod air delivery system, obtain the outlet air pressure value of the transmitter end, wherein the outlet air pressure value of the transmitter end is the measured value of the outlet air pressure of the transmitter end.

[0049] When the filter rod conveying system starts, it enters operation mode and conveys the filter rods. The system also acquires the transmitter outlet pressure value. This pressure value can be measured by a transmitter pressure sensor installed at the transmitter and sent to the detection module.

[0050] Step S102: Determine whether the transmitter pressure is abnormal based on the transmitter outlet pressure value and the standard range of transmitter pressure; if the transmitter pressure is abnormal, issue a transmitter pressure abnormality alarm.

[0051] like Figure 3 As shown, if the transmitter outlet pressure value is within the standard range for transmitter pressure, the transmitter pressure is considered normal. Step S103 is then executed. If the transmitter outlet pressure value is not within the standard range for transmitter pressure, the transmitter pressure is considered abnormal, and an abnormal transmitter pressure alarm is triggered.

[0052] Optionally, the abnormality of the transmitter pressure can be determined based on the transmitter outlet pressure value and the standard range of transmitter pressure. If the transmitter pressure is abnormal, a transmitter pressure abnormality alarm can be issued, which can be implemented through the following steps:

[0053] Step 11: Predefine the standard range of air pressure at the transmitter, which includes the maximum pressure value and the minimum pressure value.

[0054] Step 12: Drive the filter rod air delivery system and turn on the emission air pressure.

[0055] Step 13: Obtain the pressure value, which is the pressure value inside the connecting pipe from the transmitter outlet to the pressure relief inlet.

[0056] Step 14: Determine if the pressure value is within the standard range. If the pressure value is within the standard range, return to Step 13. If the pressure value is not within the standard range, issue a transmitter pressure fault signal; simultaneously, the indicator light turns red, indicating that this section of the air delivery pipeline needs maintenance. After manual intervention to resolve the fault, i.e., adjusting the pressure value back to the standard range, the fault is eliminated, and the indicator light turns green.

[0057] Optionally, before determining whether the transmitter pressure is abnormal based on the transmitter outlet pressure value and the standard range of transmitter pressure, the method further includes:

[0058] Obtain the pipe length between the transmitter and the pressure relief end; determine a matching target length range based on the pipe length and multiple preset length ranges; determine the standard range of transmitter air pressure based on the target length range.

[0059] Optionally, before performing step 14 above, the setting value of the transmitter pressure standard range is set. The setting value of the transmitter pressure standard range includes the maximum and minimum values ​​of the transmitter outlet pressure standard range. The setting value of the transmitter pressure standard range is related to the length of the connecting pipe between the transmitter outlet and the pressure relief inlet.

[0060] If the pipe length is less than a fixed length value A, the pipe is a low-pressure pipe, and the corresponding setting is low-pressure mode. The setting changes as the pipe length exceeds a certain threshold. Based on the pipe length, the standard range of transmitter air pressure settings can be divided into three modes: low-pressure, medium-pressure, and high-pressure. Maintenance personnel can determine the pipe length by knowing the location of the faulty pipe on the corresponding machine, and then switch the setting mode accordingly. This improves equipment maintenance efficiency, significantly reduces the adjustment time of the air pressure after pipe switching, and ultimately improves the efficiency of filter rod air delivery.

[0061] Furthermore, after obtaining the transmitter outlet pressure value, the process also includes:

[0062] Obtain the inlet air pressure value of the transmitter, which is a measured value of the inlet air pressure of the transmitter; determine whether the transmitter is leaking air based on the inlet air pressure value of the transmitter and the standard range of the transmitter air pressure.

[0063] The transmitter outlet pressure value also serves to check the transmitter's airtightness. If the transmitter inlet pressure is consistently lower than the minimum pressure value within the standard range of the transmitter outlet pressure, it can be determined that there is an air leak at the transmitter, guiding maintenance personnel to inspect and maintain the transmitter's airtightness.

[0064] Step S103: Obtain the speed measurement value at the receiving end. The speed measurement value at the receiving end is the measured value of the air delivery speed of the filter rod at the inlet of the receiving end.

[0065] Step S104: Determine whether the receiver speed is abnormal based on the receiver speed measurement value and the receiver speed standard range; if the receiver speed is abnormal, issue a receiver speed abnormality alarm.

[0066] If the receiver speed measurement value is within the standard range for receiver speed, then the receiver speed is determined to be normal. Proceed to step S105. If the receiver speed measurement value is not within the standard range for receiver speed, then the receiver speed is determined to be abnormal, and an abnormal receiver speed alarm is triggered.

[0067] Optionally, the receiver speed is determined to be abnormal based on the measured speed value and the standard speed range of the receiver; if the receiver speed is abnormal, a receiver speed abnormality alarm is issued, which can be implemented in the following ways:

[0068] Step 15: Predefine the standard range of receiver speed, which includes the maximum speed value and the minimum speed value.

[0069] Step 16: Drive the filter rod air delivery system and air deliver the filter rods into the receiving end.

[0070] Step 17: Obtain the speed value, which is the measured value when the filter rod enters the receiving end speed detection device.

[0071] Step 18: Determine if the speed value is within the standard range. If the speed value is within the standard range, return to Step 17. If the speed value is not within the standard range, a receiver speed fault signal is sent, and the indicator light turns red, indicating that this section of the air delivery pipeline needs maintenance. After the system automatically adjusts or manually handles the fault, i.e., after the pressure value is adjusted to within the standard range, the fault is eliminated, and the indicator light turns green.

[0072] Optionally, the receiver speed is determined to be abnormal based on the receiver speed measurement value and the receiver speed standard range; if the receiver speed is abnormal, a receiver speed abnormality alarm is issued, including:

[0073] If the speed measurement value of the receiving end is 0, a receiving end blocking alarm will be issued;

[0074] If the speed measurement value at the receiving end is not 0 and is not within the standard speed range at the receiving end, a speed fault alarm at the receiving end is triggered; a pressure adjustment signal is sent to the pressure relief end so that the pressure relief end can adjust the pressure relief until the speed value is within the standard range, thus eliminating the speed fault alarm at the receiving end.

[0075] Optionally, it is determined whether the speed value is within the standard speed range of the receiving end. If the speed value is within the standard speed range of the receiving end, the system enters the operating mode and the filter rod is conveyed normally. If the speed value is 0, a receiving end blockage signal is issued, and the indicator light turns red, indicating that the section of the duct is blocked and the air supply duct needs to be cleared. After manual intervention to handle the fault, the speed value is adjusted to the standard range, the fault is eliminated, and the indicator light turns green.

[0076] If the speed value is greater than the maximum value of the standard range of the receiving end speed, or less than the minimum value of the standard range of the receiving end speed and is not 0, a receiving end speed fault signal is issued, and the indicator light turns red, indicating that the air delivery speed of the filter rod in this section of the duct is abnormal. After the control module receives the fault signal, it processes it through an algorithm and outputs an air pressure adjustment signal to the pressure relief end. After receiving the air pressure adjustment signal, the pressure relief end automatically adjusts the air pressure through the execution module until the speed value is within the standard range, the fault is eliminated, and the indicator light turns green.

[0077] Optionally, step 18 can also achieve the function of switching the setting value according to the filter rod specification by storing and recording the correspondence between the length specification and the standard range setting value, thereby improving the speed and accuracy of the filter rod air delivery system specification cutting.

[0078] Step S105: Obtain the pressure value at the pressure relief end, wherein the pressure value at the pressure relief end is the measured value of the pressure at the outlet of the pressure relief end.

[0079] Step S106: Determine whether the pressure at the pressure relief end is abnormal based on the pressure value at the pressure relief end and the standard range of pressure at the pressure relief end; if the pressure at the pressure relief end is abnormal, issue an alarm for abnormal pressure at the pressure relief end.

[0080] Optionally, if the pressure value at the pressure relief end is greater than the upper limit threshold of the standard range of pressure relief end, a pressure relief cut-off alarm is issued to allow maintenance personnel to inspect the pressure relief end components; if the pressure value at the pressure relief end is less than the lower limit threshold of the standard range of pressure relief end, a pressure relief cut-off alarm is issued to allow maintenance personnel to inspect the airtightness of the pressure relief end air supply pipeline.

[0081] When the pressure value at the pressure relief end is within the standard range of the pressure relief end, the alarm for exceeding the upper limit of the pressure relief cut-off pressure is eliminated.

[0082] Optionally, the pressure at the pressure relief end can be determined to be abnormal based on the pressure value at the pressure relief end and the standard pressure range at the pressure relief end; if the pressure at the pressure relief end is abnormal, an alarm for abnormal pressure at the pressure relief end can be issued, which can be implemented in the following ways:

[0083] Step 19: Predefine the standard range of air pressure at the pressure relief end, which includes the maximum pressure value and the minimum pressure value.

[0084] Step 20: Drive the filter rod air delivery system and open the pressure relief valve on the pressure relief end.

[0085] Step 21: Obtain the pressure value, which is the pressure inside the connecting pipe from the pressure relief end outlet to the receiving end inlet.

[0086] Step 22: Determine if the pressure value is within the standard range. If the pressure value is within the standard range, return to Step 21. If the pressure value is not within the standard range, issue a fault signal indicating that the pressure at the pressure relief end exceeds the upper or lower limit, and simultaneously illuminate the indicator light red, indicating that this section of the air supply pipeline needs maintenance. After manual intervention to resolve the fault, i.e., adjusting the pressure value back to the standard range, the fault is eliminated, and the indicator light turns green.

[0087] Optionally, the maximum pressure value set in the standard range of the pressure relief end is not greater than the minimum pressure value that can cause the filter rod to deform when it passes through the pressure relief end, so that the quality of the filter rod is not affected during the air delivery process, thereby improving the air delivery quality of the filter rod.

[0088] Optionally, the minimum pressure value set in the standard range of the pressure relief end is not less than the maximum pressure value that could cause blockage of the air delivery pipeline when the filter rod passes through the pressure relief end, so that the filter rod will not be blocked at the pressure relief end during air delivery, thereby improving the air delivery efficiency of the filter rod.

[0089] Optionally, step 22 can be implemented as follows:

[0090] Determine whether the pressure value is within the standard range. If the pressure value is within the standard range, then enter the operating mode.

[0091] If the pressure value is higher than the maximum speed value set in the standard range, a fault signal of excessive pressure at the pressure relief end will be issued, and the indicator light will turn red, indicating that the air supply pressure of this section of the duct is greater than the maximum pressure value set in the standard range of the pressure relief end. This will guide maintenance personnel to inspect and maintain the pressure relief end components. After the fault is eliminated, the indicator light will turn green.

[0092] If the pressure value is lower than the minimum speed value set in the standard range, a fault signal of the pressure relief end being below the lower limit will be issued, and the indicator light will turn red, indicating that the air supply pressure of this section of the duct is less than the minimum pressure value set in the standard range of the pressure relief end. The indicator light will turn green after maintenance personnel have checked and maintained the air tightness of the air supply duct at the pressure relief end and the fault has been eliminated.

[0093] Furthermore, it also includes: real-time output of the transmitter outlet air pressure value, the receiver speed measurement value, and the pressure relief end air pressure value.

[0094] Optionally, if the pressure value at the pressure relief end is within the standard range for pressure relief end, the pressure relief end is determined to be normal, and the outlet pressure value at the transmitter, the speed measurement value at the receiver, and the pressure relief end pressure value are output in real time. If the pressure value at the pressure relief end is not within the standard range for pressure relief end, the speed at the receiver is determined to be abnormal, and an alarm for abnormal pressure relief end is triggered.

[0095] After obtaining the pressure data at the pressure relief end, the display module shows that the system is operating normally and displays the real-time measured values ​​of the air pressure at the transmitting end, the speed at the receiving end, and the air pressure at the pressure relief end, which makes it convenient for maintenance personnel to keep track of the filter rod air delivery status in real time and improve the control accuracy of the filter rod air delivery process.

[0096] The present invention provides a method for controlling the air pressure of a filter rod air delivery system. The filter rod air delivery system includes a transmitter, a receiver, and a pressure relief end. In response to a start signal of the filter rod air delivery system, the method acquires the outlet air pressure value of the transmitter, which is a measured value of the outlet air pressure. It then determines whether the transmitter air pressure is abnormal based on the outlet air pressure value and a standard range for transmitter air pressure. If the transmitter air pressure is abnormal, an alarm is triggered. Next, it acquires the velocity measurement value of the receiver, which is a measured value of the air delivery speed of the filter rod at the receiver inlet. It then determines whether the receiver speed is abnormal based on the velocity measurement value and a standard range for receiver speed. If the receiver speed is abnormal, an alarm is triggered. Finally, it acquires the air pressure value of the pressure relief end, which is a measured value of the air pressure at the outlet of the pressure relief end. It then determines whether the pressure relief end is abnormal based on the pressure relief end pressure value and a standard range for pressure relief end. If the pressure relief end is abnormal, an alarm is triggered. Compared to the current manual maintenance of pneumatic conveying ducts, the technical solution provided by this invention can detect the air pressure and filter rod velocity in the pneumatic conveying duct at the transmitting end, depressurization end, and receiving end. Based on the detected outlet air pressure value at the transmitting end, the velocity value at the receiving end, and the air pressure value at the depressurization end, the status of the transmitting end, receiving end, and depressurization end is detected respectively, and alarms are issued when abnormalities are found. This achieves automated and rapid inspection of pneumatic conveying ducts, improving the maintenance efficiency of pneumatic conveying ducts.

[0097] Figure 4 This is a schematic diagram of the pneumatic control device for a filter rod air delivery system according to an embodiment of the present invention. This embodiment is applicable to situations requiring real-time monitoring and maintenance of filter rod air delivery pipelines. The pneumatic control device for this filter rod air delivery system can be implemented in hardware and / or software. The filter rod air delivery system includes a transmitting end, a receiving end, and a pressure relief end. Figure 4 As shown, the air pressure control device of the filter rod air delivery system includes: a transmitter outlet air pressure value acquisition unit 210, a transmitter detection unit 220, a receiver speed value acquisition unit 230, a receiver detection unit 240, a pressure relief end air pressure value acquisition unit 250, and a pressure relief end detection unit 260.

[0098] The transmitter outlet air pressure value acquisition unit 210 is used to acquire the transmitter outlet air pressure value in response to the start signal of the filter rod air delivery system. The transmitter outlet air pressure value is the measured value of the transmitter outlet air pressure.

[0099] The transmitter detection unit 220 is used to determine whether the transmitter pressure is abnormal based on the transmitter outlet pressure value and the standard range of transmitter pressure; if the transmitter pressure is abnormal, an alarm for abnormal transmitter pressure is issued.

[0100] The receiving end speed measurement value acquisition unit 230 is used to acquire the receiving end speed measurement value, which is the measured value of the air delivery speed of the filter rod at the receiving end inlet.

[0101] The receiver detection unit 240 is used to determine whether the receiver speed is abnormal based on the receiver speed measurement value and the receiver speed standard range; if the receiver speed is abnormal, an alarm for abnormal receiver speed is issued.

[0102] The pressure relief end air pressure value acquisition unit 250 is used to acquire the pressure relief end air pressure value, wherein the pressure relief end air pressure value is the measured value of the air pressure at the pressure relief end outlet;

[0103] The pressure relief end detection unit 260 is used to determine whether the pressure relief end is abnormal based on the pressure relief end pressure value and the pressure relief end pressure standard range; if the pressure relief end pressure is abnormal, an alarm for abnormal pressure relief end pressure is issued.

[0104] Based on the above embodiments, optionally, a transmitter outlet air pressure value configuration unit is also included, used to obtain the pipe length between the transmitter and the pressure relief end before determining whether the transmitter air pressure is abnormal based on the transmitter outlet air pressure value and the transmitter air pressure standard range;

[0105] The target length range is determined based on the pipe length and multiple preset length ranges;

[0106] The standard range of the transmitter air pressure is determined based on the target length range.

[0107] Based on the above embodiments, optionally, a leakage detection unit is also included, used to obtain the transmitter inlet pressure value after obtaining the transmitter outlet pressure value, wherein the transmitter inlet pressure value is a measured value of the transmitter inlet pressure;

[0108] Whether the transmitter is leaking air is determined based on the transmitter inlet pressure value and the transmitter pressure standard range.

[0109] Based on the above embodiments, optionally, the receiver detection unit 240 is used for:

[0110] If the speed measurement value of the receiving end is 0, a receiving end blocking alarm will be issued;

[0111] If the speed measurement value at the receiving end is not 0 and is not within the standard speed range at the receiving end, a speed fault alarm at the receiving end is triggered; a pressure adjustment signal is sent to the pressure relief end so that the pressure relief end can adjust the pressure relief until the speed value is within the standard range, thus eliminating the speed fault alarm at the receiving end.

[0112] Based on the above embodiments, optionally, the pressure relief end detection unit 260 is used for:

[0113] If the pressure value at the pressure relief end is greater than the upper limit threshold of the standard pressure range at the pressure relief end, a pressure relief cut-off alarm will be issued to allow maintenance personnel to inspect the pressure relief end components; if the pressure value at the pressure relief end is less than the lower limit threshold of the standard pressure range at the pressure relief end, a pressure relief cut-off alarm will be issued to allow maintenance personnel to inspect the air tightness of the air supply pipeline at the pressure relief end.

[0114] When the pressure value at the pressure relief end is within the standard range of the pressure relief end, the alarm for exceeding the upper limit of the pressure relief cut-off pressure is eliminated.

[0115] Based on the above embodiments, optionally, an output unit is also included, which is used to output the transmitter outlet air pressure value, the receiver speed measurement value and the pressure relief end air pressure value in real time.

[0116] The air pressure control device for a filter rod air delivery system provided in this embodiment of the invention includes a transmitter, a receiver, and a pressure relief end. A transmitter outlet air pressure value acquisition unit 210 is used to acquire the transmitter outlet air pressure value in response to a start signal of the filter rod air delivery system; the transmitter outlet air pressure value is a measured value of the transmitter outlet air pressure. A transmitter detection unit 220 is used to determine whether the transmitter outlet air pressure is abnormal based on the transmitter outlet air pressure value and a standard range for transmitter air pressure; if the transmitter air pressure is abnormal, an alarm for abnormal transmitter air pressure is triggered. A receiver speed measurement value acquisition unit 230 is used to acquire the receiver speed measurement value. The receiving end speed measurement value is the measured value of the air delivery speed of the filter rod at the receiving end inlet; the receiving end detection unit 240 is used to determine whether the receiving end speed is abnormal based on the receiving end speed measurement value and the receiving end speed standard range; if the receiving end speed is abnormal, a receiving end speed abnormality alarm is issued; the pressure relief end air pressure value acquisition unit 250 is used to acquire the pressure relief end air pressure value, which is the measured value of the air pressure at the pressure relief end outlet; the pressure relief end detection unit 260 is used to determine whether the pressure relief end air pressure is abnormal based on the pressure relief end air pressure value and the pressure relief end air pressure standard range; if the pressure relief end air pressure is abnormal, a pressure relief end air pressure abnormality alarm is issued. Compared to the current manual maintenance of pneumatic conveying ducts, the air pressure control device for the filter rod pneumatic conveying system provided in this embodiment of the invention can detect the air pressure and filter rod velocity in the pneumatic conveying duct at the transmitting end, depressurization end, and receiving end. Based on the detected outlet air pressure value at the transmitting end, the velocity value at the receiving end, and the air pressure value at the depressurization end, the device can detect the status of the transmitting end, receiving end, and depressurization end respectively and issue alarms when abnormalities are found. This achieves automated and rapid inspection of the pneumatic conveying duct, improving the maintenance efficiency of the pneumatic conveying duct.

[0117] The air pressure control device for the filter rod air delivery system provided in this embodiment of the invention can execute the air pressure control method for the filter rod air delivery system provided in any embodiment of the invention, and has the corresponding functional modules and beneficial effects of the method.

[0118] Figure 5 This is a schematic diagram of the structure of a pressure control device for a filter rod air delivery system according to an embodiment of the present invention. The pressure control device is applied to the filter rod air delivery system, which includes a transmitter 1, a receiver 3, and a pressure relief end 2. An air delivery pipe is provided between the transmitter 1 and the pressure relief end 2, and between the pressure relief end 2 and the receiver 3. The pressure control device includes a detection module 100, a control module 200, a display module 300, and an execution module 400.

[0119] The detection module 100 includes a transmitting end pressure sensor 1001, a pressure relief end pressure sensor 1002, and a receiving end photoelectric switch 1003;

[0120] The transmitting end pressure sensor 1001 is connected to the transmitting end 1; the pressure relief end pressure sensor 1002 is connected to the pressure relief end 2; the receiving end photoelectric switch 1003 is connected to the receiving end 3;

[0121] The transmitting end pressure sensor 1001, the pressure relief end pressure sensor 1002, and the receiving end photoelectric switch 1003 are respectively connected to the control module 200;

[0122] The control module 200 is also connected to the display module 300 and the execution module 400; the controller is used for the air pressure control method of the filter rod air delivery system shown in the above embodiment.

[0123] The detection module 100 monitors the transmitting end air pressure, receiving end speed, and depressurization end air pressure in real time, and feeds the monitored data back to the control module 200 in real time. After receiving the information output by the detection module 100, the control module 200 outputs a signal to the execution module 400 to drive it to perform its task. Simultaneously, it displays the processed information, including real-time measurement values, fault signals, and the operating status of the air delivery system, in real time on the display module 300. The display module 300 displays the information output by the control module 200 in real time and allows modification of settings such as the standard range settings for the transmitting end air pressure, the receiving end speed, and the depressurization end air pressure. Through the input / output functions provided by the display module 300, the control range of the control module 200 can be modified, achieving closed-loop control of the filter rod air delivery system air pressure. This improves the process control accuracy of the filter rod air delivery system, reduces equipment downtime due to failure, and ultimately increases the efficiency of the filter rod air delivery system.

[0124] The detection module 100 includes pressure sensor 1001, pressure sensor 1002, and receiver photoelectric switch 1003. Pressure sensor 1001 collects the air pressure at the transmitting end component 1 in real time, and pressure sensor 1002 collects the air pressure at the depressurization end component 2 in real time. Pressure sensor 1001 and pressure sensor 1002 adopt ZJE51-P-1 pressure sensors, which have the characteristics of high precision, strong stability, fast response and high adaptability, and are suitable for the working environment of filter rod air delivery system. Speed ​​sensor 1003 uses the mirror reflection principle to detect whether the filter rod has passed through the receiving end 3 in real time, and calculates the filter rod air delivery speed at the receiving end component 3 in real time based on the filter rod passing time. Receiver photoelectric switch 1003 adopts SICK photoelectric switch WTB4S-3N1361, which has the characteristics of high precision, strong anti-interference ability and small size, and can provide good speed measurement function at the receiving end 3.

[0125] For example, the control module 200 can be a Panasonic FP0HC32ET model PLC2001 (Programmable Logic Controller), which features powerful functions, high reliability, and strong anti-interference capabilities, improving the system's flexibility and versatility. The PLC2001 receives information collected in real time from pressure sensors 1001 and 1002, as well as the receiving end photoelectric switch 1003, processes it through algorithms, and sends signals to the display module 300 and the execution module 300.

[0126] For example, the display module 300 can be a Weintek MT8071IP model HMI 3001, which features high efficiency, strong connectivity and compatibility, and strong anti-interference capabilities, effectively providing rich and stable visual and operational interfaces. The HMI 3001 interacts with the PLC 2001 in real time, displaying the operating and fault information of the filter rod air conveying system, improving equipment maintenance efficiency. Simultaneously, maintenance personnel can adjust the range of various process parameters of the filter rod air conveying system by modifying the set values ​​on the HMI 3001, such as the standard range of the transmitting end air pressure, the standard range of the depressurization end air pressure, and the standard range of the receiving end speed, effectively improving the stability of the filter rod air conveying system and reducing the time required for specification replacement.

[0127] For example, the execution module 400 can be a proportional control valve 4001. The proportional control valve 4001 can receive signals output by the PLC 2001 and automatically adjust the valve opening to achieve the function of automatically adjusting the air pressure at the pressure relief end. The proportional control valve 4001 adopts the ITV series electric proportional control valve, which has the characteristics of high-precision control, fast response, high pressure resistance, and programmable settings, and is suitable for regulating the air pressure of pneumatic conveying.

[0128] Optional, Figure 6This is a schematic diagram of the transmitter component structure provided in an embodiment of the present invention, as shown below. Figure 6 As shown, the transmitter 1 includes a quick connector 41, one end of which is connected to the outlet of the transmitter 1, and the other end of which is connected to the air delivery pipe; the transmitter pressure sensor 1001 is installed on the quick connector 41 through a threaded hole on the circumferential surface of the quick connector 41.

[0129] The transmitter assembly 1 consists of a quick connector 41 and a pressure sensor 1001. One end of the quick connector 41 is connected to the transmitter outlet, and the other end is connected to the air delivery duct. The quick connector 41 has a threaded hole on its circumference to provide a mounting position for the pressure sensor 1001.

[0130] Optional, Figure 7 This is a schematic diagram of the pressure relief end assembly structure provided in an embodiment of the present invention, as shown below. Figure 7 As shown, the pressure relief end 2 includes a pressure relief valve 42, which is connected to the pressure relief end pressure sensor 1002 via a control module 200 in the first direction. The control module 200 is a proportional regulating valve 4001. The pressure relief valve 33 is connected to the transmitter end 1 via an air delivery pipe in the second direction, and to the receiver end 3 via an air delivery pipe in the other direction. The first direction and the second direction are perpendicular to each other.

[0131] The pressure relief assembly 2 consists of a pressure relief valve 42, a proportional regulating valve 4001, and a pressure sensor 1002. The pressure relief valve 42 has ports at both ends in the horizontal direction that can be connected to air delivery ducts. One end connects to the air delivery duct from the transmitter to the pressure relief end, and the other end connects to the air delivery duct from the pressure relief end to the receiver. The upper end of the pressure relief valve 42 has a connector that can be connected to the proportional regulating valve 4001 and the pressure sensor 1002 sequentially via an air pipe.

[0132] Optional, Figure 8 This is a schematic diagram of the receiver component structure provided in an embodiment of the present invention. Figure 9 An exploded view of the receiving end component provided in an embodiment of the present invention, as shown below. Figure 8 and Figure 9 As shown, the receiving end 3 includes a bracket 31, a glass tube 32, a reflector 33, and a mounting plate 34. One end of the bracket 31 is connected to the pressure relief end 2 via an air delivery pipe, and the other end of the bracket 31 is connected to the receiver. The glass tube 32 is disposed in the central circular hole on the bracket 31 with an interference fit, and the inner diameter of the glass tube 32 matches the diameter of the filter rod. The surface of the bracket 31 is provided with two grooves, and the receiving end photoelectric switch 1003 is installed in the grooves. The reflector 33 is disposed in the mounting plate, and the mounting plate is fixed to the bracket 31.

[0133] One end of the bracket 31 is connected to an air delivery duct from the pressure relief end to the receiving end, and the other end is connected to the receiver. A circular hole is provided in the center of the bracket 31 to provide a mounting position for the glass tube 32. Two grooves are provided on the surface of the bracket 31 to provide mounting positions for the photoelectric switch 1003 at the receiving end. Several observation holes, circular holes, and threaded holes are provided opposite the grooves to provide mounting positions for the mounting plate 34. The glass tube 32 can be fitted into the circular hole in the center of the bracket 31 through an interference fit. The inner diameter of the glass tube 32 matches the diameter of the filter rod, providing an air delivery duct for the filter rod. Simultaneously, the observation holes on the bracket and the transparency of the glass allow the photoelectric switch 1003 at the receiving end to identify the filter rod. The filter rod passes through; the external dimensions of the reflector 33 can match the groove on the mounting plate 34, and it is installed in the groove of the mounting plate 34 by interference fit. The center of both ends of the mounting plate 34 is provided with an opening groove, and the mounting plate 34 can be connected to the threaded hole on the surface of the bracket 31 by bolts to fix the position of the reflector 33; the width of the receiving end photoelectric switch 1003 is the same as the groove on the surface of the bracket 31, and the receiving end photoelectric switch 1003 can be fixed in the groove on the surface of the bracket 31 by bolts. At the same time, since the groove and the threaded hole are set directly opposite each other, the receiving end photoelectric switch 1003 is always directly opposite the reflector 33, providing the light reflection function for the receiving end photoelectric switch 1003.

[0134] For example, if the filter rod does not enter the receiving end 3, the infrared rays emitted by the upper and lower receiving end photoelectric switches 1003 pass through the observation hole of the bracket 31 and the glass tube 32 in sequence. After contacting the reflector 33, they are reflected to the upper and lower receiving end photoelectric switches 1003 through the principle of light reflection. That is, the upper and lower receiving end photoelectric switches 1003 can detect the reflected signal. The system determines that there is no filter rod in the receiving end 3, and the upper and lower receiving end photoelectric switches 1003 light up green.

[0135] If the filter rod is conveyed into the glass tube 32 of the receiving end 3 by the air pressure, and then moves vertically downwards under the influence of its own weight and the air pressure, and comes into contact with the upper receiving end photoelectric switch 1003, the infrared rays emitted by the upper receiving end photoelectric switch 1003 will pass through the observation hole of the bracket 31 and the glass tube 32 in sequence, and be blocked by the filter rod. Meanwhile, the infrared rays emitted by the lower receiving end photoelectric switch 1003 will pass through the observation hole of the bracket 31 and the glass tube 32 in sequence, and after contacting the reflector 33, be reflected back to the lower receiving end photoelectric switch 1003. That is, the upper receiving end photoelectric switch 1003 cannot detect the reflected signal, while the lower receiving end photoelectric switch 1003 can detect the emitted signal. The system determines that there is a filter rod in the glass tube 32 and starts timing from the time when the upper receiving end photoelectric switch 1003 is blocked. At the same time, the upper receiving end photoelectric switch 1003 and the lower receiving end photoelectric switch 1003 will both light up yellow.

[0136] If the filter rod continues to move and contacts the lower receiving end photoelectric switch 1003, the infrared rays emitted by the upper and lower receiving end photoelectric switches 1003 will pass through the observation hole of the bracket 31 and the glass tube 32 in sequence, and be blocked by the filter rod. That is, neither the upper nor the lower receiving end photoelectric switches 1003 can detect the reflected signal. The system determines that there is a filter rod in the glass tube 32, and collects the time from when the upper receiving end photoelectric switch 1003 is blocked to when the lower receiving end photoelectric switch 1003 is blocked, and outputs it to the control module 20. The control module 20 calculates the running speed of the filter rod at the receiving end through algorithm processing, and at the same time, the upper and lower receiving end photoelectric switches 1003 light up yellow.

[0137] If the filter rod continues to enter the receiver 3, the indicator lights of the upper and lower receiver photoelectric switches 1003 will continue to flash. When the yellow light of a certain receiver photoelectric switch 1003 remains on for a certain period of time, the control module 20 determines that there is a filter rod blockage fault at the receiver and the system stops running.

[0138] It should be understood that the various forms of processes shown above can be used, with steps reordered, added, or deleted. For example, the steps described in this invention can be executed in parallel, sequentially, or in different orders, as long as the desired result of the technical solution of this invention can be achieved, and this is not limited herein.

[0139] The specific embodiments described above do not constitute a limitation on the scope of protection of this invention. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this invention should be included within the scope of protection of this invention.

Claims

1. A method for controlling the air pressure of a filter rod pneumatic conveying system, characterized in that, The filter rod pneumatic conveying system includes a transmitter, a receiver, and a pressure relief end; the method includes: In response to the start signal of the filter rod air delivery system, the outlet air pressure value of the transmitter is acquired, wherein the outlet air pressure value of the transmitter is the measured value of the outlet air pressure of the transmitter; The transmitter outlet pressure value and the standard range of transmitter pressure are used to determine whether the transmitter pressure is abnormal; if the transmitter pressure is abnormal, an alarm for abnormal transmitter pressure is issued. The receiver velocity value is obtained, wherein the receiver velocity value is the measured value of the air delivery speed of the filter rod at the receiver inlet. The receiver speed is determined to be abnormal based on the receiver speed measurement value and the receiver speed standard range. If the receiver speed is abnormal, a receiver speed abnormality alarm is issued, including: if the receiver speed measurement value is 0, a receiver blockage alarm is issued; if the receiver speed measurement value is not 0 and is not within the receiver speed standard range, a receiver speed fault alarm is issued; a pressure adjustment signal is sent to the pressure relief terminal so that the pressure relief terminal adjusts the venting pressure until the receiver speed measurement value is within the standard range, thus eliminating the receiver speed fault alarm. Obtain the pressure value at the pressure relief end, wherein the pressure value at the pressure relief end is a measured value of the pressure at the outlet of the pressure relief end; Determine whether the pressure at the pressure relief end is abnormal based on the pressure value at the pressure relief end and the standard range of pressure at the pressure relief end; if the pressure at the pressure relief end is abnormal, issue an alarm for abnormal pressure at the pressure relief end. Before determining whether the transmitter pressure is abnormal based on the transmitter outlet pressure value and the transmitter pressure standard range, the method further includes: obtaining the pipe length between the transmitter and the pressure relief end; determining a matching target length range based on the pipe length and multiple preset length ranges; and determining the transmitter pressure standard range based on the target length range.

2. The method according to claim 1, characterized in that, After obtaining the transmitter outlet pressure value, the following is also included: The inlet air pressure value of the transmitter is obtained, wherein the inlet air pressure value of the transmitter is a measured value of the inlet air pressure of the transmitter; Whether the transmitter is leaking air is determined based on the transmitter inlet pressure value and the transmitter pressure standard range.

3. The method according to claim 1, characterized in that, Determine whether the pressure at the pressure relief end is abnormal based on the pressure value at the pressure relief end and the standard range of pressure at the pressure relief end. If the pressure at the pressure relief end is abnormal, an alarm for abnormal pressure at the pressure relief end will be issued, including: If the pressure value at the pressure relief end is greater than the upper limit threshold of the standard range for pressure relief end, an alarm will be issued to indicate that the pressure relief end is above the upper limit, so that maintenance personnel can inspect the pressure relief end components; if the pressure value at the pressure relief end is less than the lower limit threshold of the standard range for pressure relief end, an alarm will be issued to indicate that the pressure relief end is below the lower limit, so that maintenance personnel can inspect the air tightness of the air supply pipeline at the pressure relief end. When the pressure value at the pressure relief end is within the standard range of the pressure relief end, the alarm for pressure exceeding the upper limit at the pressure relief end is eliminated.

4. The method according to claim 1, characterized in that, Also includes: The transmitter outlet air pressure value, the receiver speed measurement value, and the pressure relief end air pressure value are output in real time.

5. A pneumatic pressure control device for a filter rod pneumatic conveying system, characterized in that, The air pressure control device for the filter rod air delivery system is used to execute the air pressure control method of the filter rod air delivery system according to any one of claims 1-4. The filter rod air delivery system includes a transmitting end, a receiving end, and a pressure relief end. The device includes: The transmitter outlet air pressure value acquisition unit is used to acquire the transmitter outlet air pressure value in response to the start signal of the filter rod air delivery system. The transmitter outlet air pressure value is the measured value of the transmitter outlet air pressure. The transmitter detection unit is used to determine whether the transmitter pressure is abnormal based on the transmitter outlet pressure value and the standard range of transmitter pressure; if the transmitter pressure is abnormal, an alarm for abnormal transmitter pressure is issued. The receiving end speed measurement value acquisition unit is used to acquire the receiving end speed measurement value, which is the measured value of the air delivery speed of the filter rod at the receiving end inlet; The receiver detection unit is used to determine whether the receiver speed is abnormal based on the receiver speed measurement value and the receiver speed standard range; if the receiver speed is abnormal, an alarm for abnormal receiver speed is issued. A pressure relief end air pressure value acquisition unit is used to acquire the pressure relief end air pressure value, wherein the pressure relief end air pressure value is the measured value of the air pressure at the pressure relief end outlet; The pressure relief end detection unit is used to determine whether the pressure relief end is abnormal based on the pressure relief end pressure value and the pressure relief end pressure standard range; if the pressure relief end pressure is abnormal, an alarm for abnormal pressure relief end pressure is issued.

6. A pneumatic pressure control device for a filter rod pneumatic conveying system, characterized in that, The filter rod air delivery system includes a transmitter, a receiver, and a pressure relief end. An air delivery pipe is provided between the transmitter and the pressure relief end, and between the pressure relief end and the receiver. The equipment includes a detection module, a control module, a display module, and an execution module. The detection module includes a transmitter pressure sensor, a pressure relief sensor, and a receiver photoelectric switch. The transmitting end pressure sensor is connected to the transmitting end; the pressure relief end pressure sensor is connected to the pressure relief end; the receiving end photoelectric switch is connected to the receiving end; The transmitting end pressure sensor, the pressure relief end pressure sensor, and the receiving end photoelectric switch are respectively connected to the control module; The control module is also connected to the display module and the execution module; the control module is used to execute the air pressure control method of the filter rod air delivery system according to any one of claims 1-4.

7. The device according to claim 6, characterized in that, The transmitter includes a quick connector, one end of which is connected to the transmitter outlet and the other end of which is connected to an air delivery duct; the transmitter pressure sensor is mounted on the quick connector through a threaded hole on the circumferential surface of the quick connector. The pressure relief end includes a pressure relief valve. The pressure relief valve is connected to the pressure relief end pressure sensor in a first direction through a control module, and the control module is a proportional regulating valve. In a second direction, one end of the pressure relief valve is connected to the transmitting end through an air delivery pipe, and the other end is connected to the receiving end through an air delivery pipe. The first direction and the second direction are perpendicular to each other. The receiving end includes a bracket, a glass tube, a reflector, and a mounting plate. One end of the bracket is connected to a pressure relief end via an air delivery pipe, and the other end of the bracket is connected to a receiver. The glass tube is disposed in the central circular hole on the bracket with an interference fit, and the inner diameter of the glass tube matches the diameter of the filter rod. The surface of the bracket is provided with two grooves, and the photoelectric switch of the receiving end is installed in the grooves. The reflector is disposed in the mounting plate, and the mounting plate is fixed to the bracket.

8. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer instructions that, when executed by a processor, implement the air pressure control method of the filter rod air delivery system according to any one of claims 1-4.

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