Gas explosion valve sealing detection method and system and gas explosion valve

Abstract

The invention relates to a gas explosion valve sealing detection method and system and a gas explosion valve, and relates to the technical field of gas explosion valves, and the method comprises the steps: obtaining the manufacturing specification of the gas explosion valve; determining a detection air pressure value and a reference outlet air pressure value according to the manufacturing specification, and controlling a preset detection device to blow air to the air inlet according to the detection air pressure value; when the air inlet is blown based on the detection device, the outlet air pressure value of the air outlet is obtained; when the outlet air pressure value is smaller than the reference outlet air pressure value, calculating the difference between the outlet air pressure value and the reference outlet air pressure value as an air pressure deviation value; and according to the air pressure deviation value, an abnormal gas explosion valve is determined through a preset detection method, and the abnormal gas explosion valve is moved to a preset waste area. The method has the effect of improving the yield of the gas explosion valve.

Description

Technical Field

[0001] The present invention relates to the technical field of explosion valves, and in particular to a method and system for detecting the seal of an explosion valve and an explosion valve. Background Art

[0002] An explosion valve is a safety device used to prevent explosions in systems containing flammable gases, dust, and other flammable and explosive media.

[0003] The explosion valve includes a valve body connected to a pipeline and used for circulating the gas in the pipeline, a valve arranged in the inner cavity of the valve body, a valve flap that abuts against the inner cavity of the valve body and the valve, a pneumatic actuator used to drive the valve flap to move and allow the valve to circulate the gas, a pressure sensor arranged in the cavity of the valve body and used to detect the gas pressure, and a controller used to drive the pneumatic actuator to operate. When it is necessary to detect the seal of the explosion valve, the detection device is connected to the air inlet opened on the valve body for inflation, and the detection device is connected to the air outlet opened on the valve body and communicated with the valve to detect the air pressure value. And the air pressure in the valve body and the air pressure of the gas flowing through the valve are manually recorded to determine whether the explosion valve leaks. Then, the leaking explosion valve is taken to the waste area.

[0004] When manually recording the air pressure on the detection device, the operator is prone to recording errors, resulting in non-leaking explosion valves in the waste area, thus reducing the yield rate of the explosion valves. Summary of the Invention

[0005] In order to improve the yield rate of the explosion valve, the present invention provides a method and system for detecting the seal of an explosion valve and an explosion valve.

[0006] In the first aspect, the present invention provides a method for detecting the seal of an explosion valve, adopting the following technical solution: A method for detecting the seal of an explosion valve includes: Obtaining the manufacturing specifications of the explosion valve; Determining the detection air pressure value and the reference outlet air pressure value according to the manufacturing specifications, and controlling a preset detection device to blow air into the air inlet with the detection air pressure value; When the detection device blows air into the air inlet, obtaining the outlet air pressure value of the air outlet; When the outlet air pressure value is less than the reference outlet air pressure value, calculating the difference between the outlet air pressure value and the reference outlet air pressure value as the air pressure deviation value; Determining the abnormal explosion valve according to the air pressure deviation value through a preset detection method, and moving the abnormal explosion valve to a preset waste area.

[0007] By adopting the above technical solution, the air inlet is blown by controlling the detection device to detect the air pressure value, and the outlet air pressure value is automatically detected and compared with the reference outlet air pressure value. According to the comparison result, the abnormal air explosion valve is obtained and moved to the waste area, so as to reduce the probability of recording errors when manually recording the air pressure value, reduce the existence of un-leaked air explosion valves in the waste area, and thus improve the yield rate of the air explosion valve.

[0008] Optionally, the preset detection method includes: When the detection device blows air into the air inlet, control the preset sound collection device to slide along with the valve flap, and obtain the sound detection parameters at the preset detection position; When the preset friction sound characteristics appear in the sound detection parameters, update the sound detection parameters according to the friction sound characteristics; Determine the friction occurrence duration and the estimated particle volume according to the updated sound detection parameters; Determine the particle existence range according to the friction occurrence duration; Determine the cleaning power according to the estimated particle volume, and control the preset cleaning device to clean according to the cleaning power and the particle existence range.

[0009] By adopting the above technical solution, when the air explosion valve leaks, the estimated particle volume and the particle existence range are obtained through the sound detection parameters, and the cleaning device is used to clean according to the cleaning power and the particle existence range. Therefore, when the gas transmission pipeline conveys gas, it is not easy for gaps to appear between the valve flap and the cavity of the valve body due to the existence of particles, resulting in gas leakage, reducing the moving distance of the valve flap, and reducing the gas flowing through the air outlet.

[0010] Optionally, the method before controlling the preset detection device to detect the air pressure value and blow air into the air inlet includes: Determine the heating temperature according to the manufacturing specifications and the preset joint specifications, control the preset heating device to heat the joint at the heating temperature and then connect it to the air outlet; Control the operation of the detection device according to the detected air pressure value and obtain the blowing time of the detection device; Obtain the historical usage time and historical air pressure value of the joint of the detection device; Determine the detection tightness according to the historical usage time, historical air pressure value and manufacturing specifications; Determine the reference tightness according to the manufacturing specifications and the detected air pressure value; Determine the cooling temperature according to the detection tightness and the reference tightness; Calculate the difference between the cooling temperature and the heating temperature as the temperature deviation value; Determine the cooling time according to the temperature deviation value, the detected air pressure value and the manufacturing specifications; When the blowing time is the same as the cooling time, obtain the outlet air pressure value at the air outlet.

[0011] By adopting the above technical solution, when the detection device blows air to the air outlet, the joint of the detection device is heated by the heating device at the heating temperature to facilitate the joint to wrap the air outlet for connection, and the historical usage time, historical air pressure value, manufacturing specifications, and detected air pressure value are analyzed to obtain the cooling temperature and cooling time. When the blowing time is the same as the cooling time, obtain the outlet air pressure value, so as to reduce the leakage between the joint and the air outlet.

[0012] Optionally, the preset detection method includes: When the preset friction sound characteristics do not appear in the sound detection parameters, select the marked detection device according to the manufacturing specifications, and control the marked detection device to rotate circumferentially on the inner wall of the air outlet; Re-obtain the outlet air pressure value to update the air pressure deviation value; Calculate the difference between the air pressure deviation values before and after the update as the air pressure change value; When the air pressure change value is positive, determine the lateral range of the gap according to the air pressure change value; Control the marked detection device to move radially according to the lateral range of the gap, and determine the estimated range of the gap according to the air pressure change value and the lateral range of the gap; When the estimated range of the gap is less than the preset reference gap range, repair it according to the estimated range of the gap by the preset repair method.

[0013] By adopting the above technical solution, control the marked detection device to rotate circumferentially on the inner wall of the air outlet, and obtain the estimated range of the gap according to the positive air pressure change value. When the estimated range of the gap is less than the reference gap range, repair the gap by the repair method, so as to know the range of the gap and repair the gap so that the air explosion valve can continue to be used.

[0014] Optionally, the preset repair method includes: Obtain the detection wind speed of the air outlet; Determine the volume of the air outlet according to the manufacturing specifications; Determine the estimated volume of the gap according to the detected air pressure value, the reference outlet air pressure value, and the volume of the air outlet; Repair the gap by the preset dripping method according to the detection wind speed, the estimated range of the gap, and the estimated volume of the gap, and re-obtain the outlet air pressure value when the dripping device completes the repair.

[0015] By adopting the above technical solution, the estimated volume of the gap is obtained by analyzing the detected air pressure value, the reference outlet air pressure value, and the volume of the air outlet, and the dripping device is controlled to drip the repair liquid for repair, so as to facilitate the dripping device to drip the repair liquid for repair.

[0016] Optionally, the preset dripping method includes: Determine the total amount of repair according to the estimated gap range, the preset repair liquid specification, and the estimated volume of the gap; Determine the priority repair position according to the total amount of repair and the estimated gap range; Determine the repair rotation path according to the total amount of repair, the detected wind speed, and the priority repair position; Determine the tilt angle according to the total amount of repair, the repair rotation path, and the detected wind speed, control the preset dripping device to drip the repair liquid at the priority repair position and the total amount of repair, and control the detection device to tilt and rotate the air explosion valve at the tilt angle and the repair rotation path; Obtain the repair time; Determine the reference repair time according to the repair rotation path and the repair liquid specification; When the repair time is consistent with the reference repair time, control the marking detection device to trim the inner wall of the air outlet within the estimated gap range.

[0017] By adopting the above technical solution, the priority repair position, the total amount of repair, the repair rotation path, and the tilt angle are obtained by analyzing the estimated gap range, the detected wind speed, the repair liquid specification, and the estimated volume of the gap, and the dripping device is controlled to drip the repair liquid at the priority repair position and the total amount of repair, and the detection device is controlled to tilt and rotate the air explosion valve at the tilt angle and the repair rotation path. When the repair time is consistent with the reference repair time, it indicates that the repair liquid has covered the estimated gap range and solidified, so that the air explosion valve can continue to be used.

[0018] Optionally, it further includes: When the marking detection device is performing detection, obtain the blocking range of the marking detection device; Obtain the blocking wind speed according to the blocking range; Determine the reference wind speed according to the reference outlet air pressure value and the manufacturing specification; Determine the protrusion extension range according to the blocking wind speed and the reference wind speed, and control the preset grinding device to grind within the protrusion extension range.

[0019] By adopting the above technical solution, when the marking detection device is blocked during detection, the protrusion extension range is obtained through the blocking range, the blocking wind speed, and the reference wind speed, and the grinding device is controlled to grind within the protrusion extension range, so that it is not easy for the protrusion in the air outlet to cause an error in the detection of the air pressure at the air outlet, and the accuracy of the air pressure detection at the air outlet is improved.

[0020] In a second aspect, the present application provides an air explosion valve sealing detection system, adopting the following technical solution: An air explosion valve sealing detection system, comprising: An acquisition module, configured to acquire manufacturing specifications, outlet air pressure value, sound detection parameters, blowing time, historical usage time, historical air pressure value, detection wind speed, repair time, blocking range, and blocking wind speed; A memory, configured to store an air explosion valve sealing detection method; A processor, configured to load and execute the program stored in the memory.

[0021] In a third aspect, the present application provides an air explosion valve, adopting the following technical solution: An air explosion valve, comprising a valve body, a valve core disposed on the valve body, a cavity opened on the valve body and for the valve core to slide therein, and valve flaps disposed at both ends of the valve core. A gas delivery pipe for gas to flow through the cavity is disposed on the valve body; An air inlet and an air outlet are opened on the valve body. The air inlet, the air outlet, and the cavity are in communication with each other. The valve core slides in the cavity and is configured to drive the valve flaps to control the opening and closing of the air inlet.

[0022] In summary, the present application includes at least one of the following beneficial technical effects: 1. By automatically detecting and comparing the outlet air pressure value with the reference outlet air pressure value, abnormal air explosion valves can be obtained based on the comparison result and moved to the waste area, thereby reducing the probability of recording errors when manually recording the air pressure value, reducing the presence of non-leaking air explosion valves in the waste area, and thus improving the yield rate of air explosion valves; 2. When the detection device blows air by connecting to the air outlet, the joint of the detection device is heated by the heating temperature to facilitate the connection of the joint to wrap the air outlet. When the blowing time is the same as the cooling time, the outlet air pressure value is acquired, thereby reducing the occurrence of leakage between the joint and the air outlet; 3. By controlling the dripping device to preferentially drip the repair liquid at the repair position and the total amount of repair, and controlling the detection device to tilt and rotate the air explosion valve at an inclined angle and a repair rotation path. When the repair time is the same as the reference repair time, it indicates that the repair liquid has covered the estimated range of the gap and solidified, thereby enabling the air explosion valve to continue to be used. Description of the Drawings

[0023] Figure 1 is a schematic structural diagram of an air explosion valve according to an embodiment of the present invention; Figure 2 is a cross-sectional view of an air explosion valve according to an embodiment of the present invention; Figure 3 It is a flowchart of a method for detecting the seal of an air explosion valve according to an embodiment of the present invention; Figure 4 It is the method flow of a preset detection method according to an embodiment of the present invention Figure 1 ; Figure 5 It is a flowchart of a method before controlling a preset detection device to detect the air pressure value and blowing air into the air inlet according to an embodiment of the present invention; Figure 6 It is the method flow of a preset detection method according to an embodiment of the present invention Figure 2 ; Figure 7 It is a flowchart of a preset repair method according to an embodiment of the present invention; Figure 8 It is a flowchart of a preset dripping method according to an embodiment of the present invention; Figure 9 It is the method flow of a preset detection method according to an embodiment of the present invention Figure 3 。

[0024] The names of the parts referred to by each digital label in the above drawings are as follows: 1. Valve body; 2. Valve core; 3. Valve flap; 4. Air inlet; 5. Air outlet; 6. Gas transmission pipeline. Detailed implementation manners

[0025] The present invention will be further described in detail below with reference to the drawings and embodiments.

[0026] Refer to Figure 1 and Figure 2 , an air explosion valve includes a valve body 1, a cavity opened in the valve body 1, a valve core 2 and a valve flap 3. The valve core 2 is slidably installed in the cavity of the valve body 1. The valve flap 3 is arranged at both ends of the valve core 2. An air inlet 4 and an air outlet 5 that communicate with each other are opened on the valve body 1. The axes of the air inlet 4 and the air outlet 5 are perpendicular to each other. A gas transmission pipeline 6 for gas to flow through the cavity is arranged on the valve body 1. The gas transmission pipeline 6 is used to connect an air pump for charging and discharging gas into the cavity of the valve body 1. There are two gas transmission pipelines 6. One gas transmission pipeline 6 is clamped at one end of the valve body 1 away from the air inlet 4, and the other gas transmission pipeline 6 is clamped on the side away from the air outlet 5.

[0027] The gas transmission pipeline 6 at one end away from the air inlet 4 is connected to an air pump to transport gas into the cavity of the valve body 1, and drives the valve core 2 to slide in the direction close to the air inlet 4, so that the valve flap 3 close to the air inlet 4 closes the air inlet 4.

[0028] When gas needs to flow through the air outlet 5, the gas delivery pipeline 6 on the side far from the air outlet 5 is connected to an air pump to deliver gas into the cavity of the valve body 1, and drives the valve core 2 to slide in a direction away from the air inlet 4. At this time, the gas delivery pipeline 6 at one end far from the air inlet 4 discharges the gas, enabling the air inlet 4 to allow gas to flow through and flow the gas to the air outlet 5.

[0029] Referring to Figure 3 , the embodiment of the present application discloses a method for detecting the seal of an air explosion valve, which is applied to the above-mentioned air explosion valve, and includes the following steps: Step S100: Obtain the manufacturing specifications of the air explosion valve.

[0030] The manufacturing specifications refer to the materials and dimensions of the air explosion valve, etc., which can be obtained after being pre-entered by the operator.

[0031] Step S101: Determine the detection air pressure value and the reference outlet air pressure value according to the manufacturing specifications, and control the preset detection device to blow air into the air inlet 4 with the detected air pressure value.

[0032] The detection device refers to a device for detecting the seal of the air explosion valve. The detection device includes a blowing joint for connecting to the air inlet 4 to blow out gas, a detection joint for connecting to the air outlet 5 to detect parameters such as air pressure and wind speed, and a base for fixing the air explosion valve and equipped with an angle adjustment device. A sound collection device is installed on the base. The sound collection device uses a miniature microphone, and the angle adjustment device uses a hinge-type angle adjustment device.

[0033] A heating device for heating the joint is provided on the blowing joint, and the heating device can adopt an annular heating semiconductor ring. An ultrasonic sensor, a pressure sensor, a mark detection device, and a dripping device are provided on the detection joint.

[0034] The mark detection device includes a telescopic rod and an iron sheet having the same arc as the inner wall of the air outlet 5. The length of the iron sheet is the same as the axial length of the air outlet 5. The telescopic rod is used to control the iron sheet to slide along the axis of the air outlet 5. A miniature guide rail for the circumferential rotation of the telescopic rod is provided on the detection joint. When the mark detection device operates, the iron sheet is controlled to abut against the inner wall of the air outlet 5 for circumferential rotation.

[0035] The dripping device adopts an injection needle for injecting the repair liquid into the air outlet 5, and the material of the repair liquid can adopt a polyurethane repair liquid.

[0036] The detected air pressure value refers to the air pressure value generated by the gas on the valve flap 3 when the detection device blows air into the air inlet 4. The reference outlet air pressure value refers to the air pressure value at the air outlet 5 when the detection device blows air with the detected air pressure value. The detected air pressure value and the reference outlet air pressure value are obtained by looking up the table according to the manufacturing specifications. The table contains the corresponding relationship between the manufacturing specifications, the detected air pressure value, and the reference outlet air pressure value, which will not be elaborated here. In this embodiment, the reference outlet air pressure value is set after considering the influence of each device in the detection joint on the air flow at the air outlet 5.

[0037] Step S102: When the detection device blows air into the air inlet 4, obtain the outlet air pressure value at the air outlet 5.

[0038] The outlet air pressure value refers to the actually detected air pressure value at the air outlet 5 when the detection device blows air into the air inlet 4. The parameter detected by the pressure sensor on the detection joint is used as the outlet air pressure value.

[0039] Step S103: When the outlet air pressure value is less than the reference outlet air pressure value, calculate the difference between the outlet air pressure value and the reference outlet air pressure value as the air pressure deviation value.

[0040] The air pressure deviation value refers to the deviation value between the outlet air pressure value and the reference outlet air pressure value. When the outlet air pressure value is less than the reference outlet air pressure value, it indicates that there is a leakage in the air explosion valve. Then calculate the difference between the outlet air pressure value and the reference outlet air pressure value as the air pressure deviation value.

[0041] Step S104: According to the air pressure deviation value, use a preset detection method to determine the abnormal air explosion valve, and move the abnormal air explosion valve to a preset waste area.

[0042] The waste area is the area set by the technician for placing the leaking air explosion valve. The clamping device is a robotic arm. The detection method refers to the method for detecting the cause of the leakage of the air explosion valve. The abnormal air explosion valve refers to the air explosion valve that cannot be repaired with repair fluid after being detected by the detection method. Analyze the air pressure deviation value and the detection method to obtain the abnormal air explosion valve, and control the preset clamping device to move the abnormal air explosion valve to the waste area.

[0043] Refer to Figure 4 , the preset detection method includes: Step S200: When the detection device blows air into the air inlet 4, control the preset sound collection device to slide along with the valve flap 3 to obtain the sound detection parameter at the preset detection position.

[0044] In this embodiment, the sliding distance is matched by inputting the outlet air pressure value into a preset air explosion valve database, and the sound collection device is controlled to slide from the position of the air inlet 4 by the sliding distance, so that the sound collection device can slide following the valve flap 3 moving away from the air inlet 4. The air explosion valve database contains the corresponding relationship between the outlet air pressure value and the sliding distance. The air explosion valve database is set manually and will not be elaborated here.

[0045] The detection position is the position where the microphones are installed set by technicians. The sound detection parameters refer to the sound parameters collected by the microphones at each detection position.

[0046] Step S201: When a preset friction sound feature appears in the sound detection parameters, update the sound detection parameters according to the friction sound feature.

[0047] The friction sound feature is the sound feature of particles rubbing between the valve flap 3 and the inner wall of the valve body 1 when the valve flap 3 slides set by technicians. When the friction sound feature appears in the sound detection parameters, it indicates that there are particles between the valve flap 3 and the inner wall of the valve body 1. Then, extract the sound parameters corresponding to the friction sound feature from the sound detection parameters as the new sound detection parameters.

[0048] Step S202: Determine the friction occurrence duration and the estimated particle volume according to the updated sound detection parameters.

[0049] The friction occurrence duration refers to the time length value when the friction sound feature appears in the sound detection parameters. When the detection device blows air into the air inlet 4, start timing, and stop timing when the friction sound feature appears in the sound detection parameters. Take the timing result as the friction occurrence duration. The estimated particle volume refers to the estimated volume of the particles between the valve flap 3 and the inner wall of the valve body 1. Match the updated sound detection parameters into a preset friction database to obtain the estimated particle volume. The friction database contains the corresponding relationship between the sound detection parameters and the estimated particle volume. The friction database is set manually and will not be elaborated here.

[0050] Step S203: Determine the particle existence range according to the friction occurrence duration.

[0051] The particle existence range refers to the estimated range where the particles exist between the valve flap 3 and the inner wall of the valve body 1. Obtain the particle existence range through the friction occurrence duration and the time difference positioning method. The time difference positioning method is well-known common knowledge in the art and will not be elaborated here.

[0052] Step S204: Determine the cleaning power according to the estimated particle volume, and control the preset cleaning device to clean with the cleaning power and the particle existence range.

[0053] The cleaning device refers to the ultrasonic generator and the syringe dripping with the cleaning liquid. The cleaning power refers to the power used to control the operation of the cleaning device to clean the particles. The cleaning power is matched from the preset ultrasonic database based on the estimated volume of the particles, and the cleaning device is controlled to drip the cleaning liquid within the particle presence range, and the ultrasonic generator is operated at the cleaning power to remove the particles.

[0054] The ultrasonic database contains the corresponding relationship between the estimated volume of the particles and the cleaning power. The ultrasonic database is set manually and will not be elaborated here.

[0055] Refer to Figure 5 , the method for controlling the preset detection device to detect the air pressure value before blowing air into the air inlet 4 includes: Step S300: Determine the heating temperature according to the manufacturing specifications and the preset joint specifications, and control the preset heating device to heat the joint at the heating temperature and then connect it to the air outlet 5.

[0056] The joint specification is the specification of the blowing joint of the detection device set by the technician. The heating temperature refers to the temperature used to heat the blowing joint. The maximum diameter of the air inlet is retrieved through the manufacturing specifications, and then the minimum diameter of the joint is retrieved from the joint specifications. The difference between the maximum diameter and the minimum diameter is calculated as the diameter deviation value. The diameter deviation value and the joint specifications are input into the preset heating database to match the heating temperature, and the heating device is controlled to heat the joint at the heating temperature and then connect it to the air outlet 5. In this embodiment, the blowing joint is made of rubber material.

[0057] The heating database contains the corresponding relationship between the diameter deviation value, the joint specification, and the heating temperature. The heating database is set manually and will not be elaborated here.

[0058] Step S301: Control the operation of the detection device according to the detected air pressure value and obtain the blowing time of the detection device.

[0059] The blowing time refers to the time length value when the detection device operates at the detected air pressure value. When the detection device is controlled to operate at the detected air pressure value, the timing starts, and the timing result is used as the blowing time.

[0060] Step S302: Obtain the historical usage time and historical air pressure value of the joint of the detection device.

[0061] The historical air pressure value refers to the air pressure value that the blowing joint has withstood when the detection device detects the air explosion valve. The historical usage time refers to the time length value when the detection device operates at the historical air pressure value, and the historical usage time and historical air pressure value are retrieved from the system of the detection device.

[0062] Step S303: Determine the detection tightness according to the historical usage time, historical air pressure value, and manufacturing specifications.

[0063] The detected tightness refers to the tightness between the blowing joint and the air inlet 4 of the manufacturing specification at normal temperature, and the detected tightness is matched from a preset tightness database based on the historical usage time, historical air pressure value, and the maximum diameter of the air inlet.

[0064] The reference tightness refers to the minimum tightness required between the blowing joint and the air inlet 4 of the manufacturing specification when the detection device operates at the detected air pressure value. The tightness database contains the corresponding relationships between the historical usage time, historical air pressure value, the maximum diameter of the air inlet, and the detected tightness, and also includes the corresponding relationships between the manufacturing specification, the detected air pressure value, and the reference tightness. The tightness database is set manually and will not be elaborated here.

[0065] Step S304: Determine the reference tightness according to the manufacturing specification and the detected air pressure value.

[0066] The manufacturing specification and the detected air pressure value are input into the tightness database to match the reference tightness.

[0067] Step S305: Determine the cooling temperature according to the detected tightness and the reference tightness.

[0068] The cooling temperature refers to the temperature required for the blowing joint to reach the reference tightness. By calculating the difference between the detected tightness and the reference tightness as the tightness deviation value, and then inputting the tightness deviation value into the tightness database to obtain the cooling temperature. The tightness database contains the corresponding relationship between the tightness deviation value and the cooling temperature, which will not be elaborated here.

[0069] Step S306: Calculate the difference between the cooling temperature and the heating temperature as the temperature deviation value.

[0070] The temperature deviation value refers to the deviation value between the cooling temperature and the heating temperature, and is calculated by calculating the difference between the cooling temperature and the heating temperature.

[0071] Step S307: Determine the cooling time according to the temperature deviation value, the detected air pressure value, and the manufacturing specification.

[0072] The cooling time refers to the time required for the temperature of the blowing joint to reach the cooling temperature when the detection device blows air at the detected air pressure value. The cooling time is matched from a preset cooling database based on the temperature deviation value, the detected air pressure value, and the manufacturing specification. The cooling database contains the corresponding relationships between the temperature deviation value, the detected air pressure value, the manufacturing specification, and the cooling time. The cooling database is set manually and will not be elaborated here.

[0073] Step S308: When the blowing time is consistent with the cooling time, obtain the outlet air pressure value of the air outlet 5.

[0074] When the blowing time is the same as the cooling time, it indicates that the tightness between the blowing joint and the air outlet 5 reaches the reference tightness, and it is not easy to have air leakage when the detection device operates to detect the air pressure value, then step S102 is continued to be executed.

[0075] Refer to Figure 6 , the preset detection method includes: Step S400: When the preset friction sound characteristics do not appear in the sound detection parameters, select a marking detection device according to the manufacturing specifications, and control the marking detection device to rotate circumferentially on the inner wall of the air outlet 5.

[0076] The marking detection device is provided with iron sheets with different radian values. The marking detection device with the same arc radian as that of the air outlet 5 is retrieved according to the manufacturing specifications. When the friction sound characteristics do not appear in the sound detection parameters, it indicates that there are gaps or protrusions on the inner wall of the air outlet 5, then control the marking detection device to rotate circumferentially on the inner wall of the air outlet 5. In this embodiment, the gaps detected by the marking detection device do not communicate with the cavity of the air outlet 5, and the gap does not extend to the surface. The gap extending from the inner wall of the air outlet 5 to the cavity of the air outlet 5 or the surface of the air outlet 5 can be obtained through image recognition, and the air burst valve with the gap obtained by image recognition is marked as an abnormal air burst valve, which will not be elaborated here.

[0077] Step S401: Re-acquire the outlet air pressure value to update the air pressure deviation value.

[0078] When the marking detection device rotates circumferentially on the inner wall of the air outlet 5, re-acquire the outlet air pressure value, and re-execute step S103 with the updated outlet air pressure value to obtain a new air pressure deviation value.

[0079] Step S402: Calculate the difference between the air pressure deviation values before and after the update as the air pressure change value.

[0080] The air pressure change value refers to the change value of the air pressure in the air outlet 5 when the marking detection device rotates circumferentially on the inner wall of the air outlet 5. Calculate the difference between the air pressure deviation values before and after the update as the air pressure change value.

[0081] Step S403: When the air pressure change value is positive, determine the lateral range of the gap according to the air pressure change value.

[0082] The lateral range of the gap refers to the axial range where the gap exists on the inner wall of the air outlet 5. When the air pressure change value is positive, it indicates that there is a gap on the inner wall of the air outlet 5 and it is blocked by the marking detection device. Take the axial range with a positive air pressure change value as the lateral range of the gap.

[0083] Step S404: Control the marker detection device to move radially according to the lateral range of the gap, and determine the predicted gap range based on the air pressure change value and the lateral range of the gap.

[0084] The predicted gap range refers to the axial range where the gap exists on the inner wall of the air outlet 5. By controlling the marker detection device to move radially within the lateral range of the gap, mark the height position of the air outlet 5 where the air pressure change value appears, and continue to move radially until no air pressure change value appears and then mark again. The range formed by combining the radial straight line of the height positions of the two marks with the lateral range of the gap is used as the predicted gap range.

[0085] Step S405: When the predicted gap range is less than the preset reference gap range, repair it according to the predicted gap range through the preset repair method.

[0086] The reference gap range is the maximum range where the gap appears on the inner wall of the air outlet 5 set by the technical personnel. The repair method refers to the method of repairing the gap on the inner wall of the air outlet 5. When the predicted gap range is less than the reference gap range, it means that the gap can be repaired, so the gap is repaired through the predicted gap range and the repair method.

[0087] Refer to Figure 7 , the preset repair method includes: Step S500: Obtain the detected wind speed of the air outlet 5.

[0088] The detected wind speed refers to the wind speed of the air outlet 5 when the detection device operates at the detected air pressure value. The wind speed at the orifice of the air outlet 5 is detected by an ultrasonic sensor as the detected wind speed.

[0089] Step S501: Determine the air outlet volume according to the manufacturing specifications.

[0090] The air outlet volume refers to the volume of the air outlet 5, and the air outlet volume is calculated by extracting the parameters of the air outlet 5 from the manufacturing specifications.

[0091] Step S502: Determine the predicted gap volume according to the detected air pressure value, the reference outlet air pressure value, and the air outlet volume.

[0092] The predicted gap volume refers to the predicted volume of the gap on the inner wall of the air outlet 5, and the predicted gap volume is calculated by the detected air pressure value, the reference outlet air pressure value, and the air outlet volume. The calculation method of the predicted gap volume includes: V c = (P1 × V1) / P2 - V1, V c is the predicted gap volume, P1 is the detected air pressure value, P2 is the reference outlet air pressure value, and V1 is the air outlet volume.

[0093] Step S503: Repair the gap by means of a preset dripping method based on the detected wind speed, the predicted gap range, and the predicted gap volume, and reacquire the outlet air pressure value when the repair is completed based on the dripping device.

[0094] The dripping method refers to a method of dripping a repair liquid onto the gap on the inner wall of the air outlet 5 for repair. The gap is repaired by detecting the wind speed, the predicted gap range, the predicted gap volume, and the dripping method, and the outlet air pressure value is reacquired when the repair is completed by the dripping device.

[0095] Refer to Figure 8 , the preset dripping method includes: Step S600: Determine the total repair amount according to the predicted gap range, the preset repair liquid specifications, and the predicted gap volume.

[0096] The repair liquid specifications are the parameter specifications such as the viscosity of the repair liquid set by the technician. The total repair amount refers to the amount of repair liquid required to repair the gap with the predicted gap range and the predicted gap volume. By calculating the shortest straight-line distance between the predicted gap range and the orifice of the air outlet 5, and inputting the straight-line distance, the repair liquid specifications, and the predicted gap volume into the preset repair liquid database to match the total repair amount. In this embodiment, the total repair amount includes the volume required for the predicted gap volume, the amount remaining when the repair liquid moves from the orifice of the air outlet 5 to the predicted gap range, and the amount remaining when the repair liquid covers the predicted gap range.

[0097] The repair liquid database contains the corresponding relationship between the straight-line distance, the repair liquid specifications, and the predicted gap volume. The repair liquid database is set manually and will not be elaborated here.

[0098] Step S601: Determine the priority repair position according to the total repair amount and the predicted gap range.

[0099] The reference dripping position is the position where the dripping device set by the technician drips the repair liquid when the air explosion valve is not rotated and tilted. The priority repair position refers to the position where the repair liquid preferentially flows into the predicted gap range. By obtaining the total repair amount, two repair points in the radial direction that can cover the predicted gap range are obtained, and the distances between the two repair points and the reference dripping position along the inner wall of the air outlet 5 are calculated. The repair point with the minimum distance is taken as the priority repair position.

[0100] Step S602: Determine the repair rotation path according to the total repair amount, the detected wind speed, and the priority repair position.

[0101] The repair rotation path refers to the path for driving the repair liquid to move within the estimated range of the gap by rotating the inclined air explosion valve. By driving the repair liquid with the total repair amount to perform an S-shaped movement at the priority repair position to obtain the path of the air explosion valve rotation corresponding to just covering the estimated range of the gap as the repair rotation path, the method for obtaining the repair rotation path is common knowledge in the art and will not be elaborated here.

[0102] Step S603: Determine the inclination angle according to the total repair amount, the repair rotation path, and the detected wind speed, control the preset dripping device to drip the repair liquid at the priority repair position with the total repair amount, and control the detection device to tilt and rotate the air explosion valve according to the inclination angle and the repair rotation path.

[0103] The inclination angle refers to the angle required for the air explosion valve to drive the correction liquid with the total repair amount to flow on the repair rotation path. Different total repair amounts have different inclination angles. The inclination angle is matched by inputting the total repair amount, the repair rotation path, and the detected wind speed into the preset inclination database. The inclination database contains the corresponding relationship between the total repair amount, the repair rotation path, the detected wind speed, and the inclination angle. The inclination database is set manually and will not be elaborated here.

[0104] Step S604: Obtain the repair time.

[0105] The repair time refers to the time length value when the repair liquid covers and repairs the estimated range of the gap. When the repair liquid reaches the priority repair position, start timing, and use the timing result as the repair time.

[0106] Step S605: Determine the reference repair time according to the repair rotation path and the repair liquid specification.

[0107] The reference repair time refers to the maximum time required for the repair liquid to move and solidify after being driven by the repair rotation path and the repair liquid specification. The reference repair time is matched by inputting the repair rotation path and the repair liquid specification into the repair liquid database. The repair liquid database also contains the corresponding relationship between the repair rotation path, the repair liquid specification, and the reference repair time, which will not be elaborated here.

[0108] Step S606: When the repair time is consistent with the reference repair time, control the marking detection device to trim the inner wall of the air outlet 5 within the estimated range of the gap.

[0109] When the repair time is consistent with the reference repair time, it means that the repair liquid has solidified. Therefore, control the marking detection device to rotate within the estimated range of the gap to trim the excess repair liquid on the inner wall of the air outlet 5. In this embodiment, chamfers are provided on both sides of the iron sheet on the marking detection device.

[0110] Refer to Figure 9 , the preset detection method further includes: Step S700: When detecting based on the marker detection device, obtain the blocking range of the marker detection device.

[0111] The blocking range refers to the range where the inner wall of the air outlet 5 blocks the circumferential rotation of the marker detection device. When the marker detection device rotates circumferentially, mark the points of the blocking marker detection device, then rotate in the opposite direction, continue to mark the points of the blocking marker detection device, and continue to control the bottom of the marker detection device to move upward while rotating the axial range edges included by the two points, so as to depict the shape of the axial range in the height direction and combine the shape with the axial range to obtain the blocking range.

[0112] Step S701: Obtain the blocking wind speed according to the blocking range.

[0113] The blocking wind speed refers to the wind speed when the wind in the air outlet 5 passes through the blocking range. The wind speed of the blocking range is detected by an ultrasonic sensor as the blocking wind speed.

[0114] Step S702: Determine the reference wind speed according to the reference outlet air pressure value and the manufacturing specifications.

[0115] The reference wind speed refers to the wind speed passing through the air outlet 5 without abnormalities. The reference outlet air pressure value is input into a preset blowing database to match the reference wind speed. The blowing database contains the corresponding relationship between the reference outlet air pressure value, the manufacturing specifications, and the reference wind speed. The blowing database is set manually and will not be elaborated here.

[0116] Step S703: Determine the protrusion extension range according to the blocking wind speed and the reference wind speed, and control a preset grinding device to grind according to the protrusion extension range.

[0117] The grinding device can adopt an internal hole grinding machine. The protrusion extension range refers to the range where protrusions appear on the inner wall of the air outlet 5. By comparing the blocking wind speed and the reference wind speed, select the range of the blocking wind speed that is inconsistent with the reference wind speed within the blocking range as the protrusion extension range, and control the clamping device to clamp the air explosion valve to the grinding device, and grind the protrusion extension range according to the manufacturing specifications.

[0118] Based on the same inventive concept, an air explosion valve sealing detection system provided by an embodiment of the present invention includes: An acquisition module, configured to acquire manufacturing specifications, outlet air pressure values, sound detection parameters, blowing time, historical usage time, historical air pressure values, detection wind speed, repair time, blocking range, and blocking wind speed; A memory, configured to store an air explosion valve sealing detection method; A processor, configured to load and execute the program stored in the memory.

[0119] Those skilled in the art can clearly understand that, for the convenience and conciseness of description, only the division of the above functional modules is used as an example. In actual applications, the above functions can be allocated to different functional modules according to needs, that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above. For the specific working processes of the system, device, and unit described above, reference can be made to the corresponding processes in the foregoing method embodiments, and details are not described herein again.

[0120] The above is only the preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions falling within the idea of the present invention belong to the protection scope of the present invention. It should be noted that for those of ordinary skill in the art, several improvements and refinements made without departing from the principle of the present invention should also be regarded as within the protection scope of the present invention.

Claims

1. A method for detecting the seal of an air explosion valve, characterized in that, Including: Obtain the manufacturing specifications of the air explosion valve; Determine the detected air pressure value and the reference outlet air pressure value according to the manufacturing specifications, and control a preset detection device to detect the air pressure value and blow air into the air inlet (4); When the detection device blows air into the air inlet (4), obtain the outlet air pressure value of the air outlet (5); When the outlet air pressure value is less than the reference outlet air pressure value, calculate the difference between the outlet air pressure value and the reference outlet air pressure value as the air pressure deviation value; Determine the abnormal air explosion valve according to the air pressure deviation value through a preset detection method, and move the abnormal air explosion valve to a preset waste area.

2. The method for detecting the seal of an air explosion valve according to claim 1, characterized in that, The preset detection method includes: When the detection device blows air into the air inlet (4), control a preset sound collection device to slide along with the valve flap (3) and obtain the sound detection parameters at a preset detection position; When the preset friction sound characteristics appear in the sound detection parameters, update the sound detection parameters according to the friction sound characteristics; Determine the friction occurrence duration and the estimated particle volume according to the updated sound detection parameters; Determine the particle existence range according to the friction occurrence duration; Determine the cleaning power according to the estimated particle volume, and control a preset cleaning device to clean according to the cleaning power and the particle existence range.

3. The method for detecting the seal of an air explosion valve according to claim 1, characterized in that, The method before controlling the preset detection device to detect the air pressure value and blow air into the air inlet (4) includes: Determine the heating temperature according to the manufacturing specifications and a preset joint specification, control a preset heating device to heat the joint at the heating temperature and then connect it to the air outlet (5); Control the operation of the detection device according to the detected air pressure value and obtain the blowing time of the detection device; Obtain the historical usage time and historical air pressure value of the joint of the detection device; Determine the detection tightness according to the historical usage time, historical air pressure value and manufacturing specifications; Determine the reference tightness according to the manufacturing specifications and the detected air pressure value; Determine the cooling temperature according to the detection tightness and the reference tightness; Calculate the difference between the cooling temperature and the heating temperature as the temperature deviation value; Determine the cooling time according to the temperature deviation value, the detected air pressure value and the manufacturing specifications; When the blowing time and the cooling time are consistent, obtain the outlet air pressure value of the air outlet (5).

4. The method for detecting the seal of an air explosion valve according to claim 2, characterized in that, The preset detection method includes: When the preset friction sound characteristics do not appear in the sound detection parameters, select a marking detection device according to the manufacturing specifications, and control the marking detection device to rotate circumferentially on the inner wall of the air outlet (5); Re-obtain the outlet air pressure value to update the air pressure deviation value; Calculate the difference between the air pressure deviation values before and after the update as the air pressure change value; When the air pressure change value is positive, determine the lateral range of the gap according to the air pressure change value; Control the marking detection device to move radially according to the lateral range of the gap, and determine the estimated gap range according to the air pressure change value and the lateral range of the gap; When the estimated gap range is less than a preset reference gap range, perform repair according to the estimated gap range through a preset repair method.

5. The method for detecting the seal of an air explosion valve according to claim 4, characterized in that, The preset repair method includes: Obtain the detected wind speed of the air outlet (5); Determine the outlet volume according to the manufacturing specifications; Determine the estimated gap volume according to the detected air pressure value, the reference outlet air pressure value and the outlet volume. Repair the gap by a preset dripping method according to the detected wind speed, the estimated gap range, and the estimated gap volume, and re-acquire the outlet air pressure value when the repair is completed based on the dripping device.

6. A method for detecting the seal of an air explosion valve according to claim 5, characterized in that, The preset dripping method includes: Determine the total repair amount according to the estimated gap range, the preset repair liquid specification, and the estimated gap volume; Determine the priority repair position according to the total repair amount and the estimated gap range; Determine the repair rotation path according to the total repair amount, the detected wind speed, and the priority repair position; Determine the tilt angle according to the total repair amount, the repair rotation path, and the detected wind speed, control the preset dripping device to drip the repair liquid at the priority repair position and the total repair amount, and control the detection device to tilt and rotate the air explosion valve at the tilt angle and the repair rotation path; Obtain the repair time; Determine the reference repair time according to the repair rotation path and the repair liquid specification; When the repair time is consistent with the reference repair time, control the marking detection device to trim the inner wall of the air outlet (5) within the estimated gap range.

7. A method for detecting the seal of an air explosion valve according to claim 4, characterized in that, It also includes: When detecting based on the marking detection device, obtain the blocking range of the marking detection device; Obtain the blocking wind speed according to the blocking range; Determine the reference wind speed according to the reference outlet air pressure value and the manufacturing specification; Determine the protrusion extension range according to the blocking wind speed and the reference wind speed, and control the preset grinding device to grind within the protrusion extension range.

8. An air explosion valve seal detection system, characterized in that, It includes: An acquisition module, used to acquire the manufacturing specification, the outlet air pressure value, the sound detection parameter, the blowing time, the historical usage time, the historical air pressure value, the detected wind speed, the repair time, the blocking range, and the blocking wind speed; A memory, used to store a method for detecting the air explosion valve seal as described in any one of claims 1 to 7; A processor, used to load and execute and implement the program stored in the memory.

9. An air explosion valve applying a method for detecting the seal of an air explosion valve according to any one of claims 1 to 7, characterized in that, It includes a valve body (1), a valve core (2) arranged on the valve body (1), a cavity opened on the valve body (1) and used for the valve core (2) to slide, and valve flaps (3) arranged at both ends of the valve core (2), and a gas transmission pipeline (6) for gas to flow through the cavity is arranged on the valve body (1); An air inlet (4) and an air outlet (5) are opened on the valve body (1), the air inlet (4), the air outlet (5), and the cavity are interconnected, and the valve core (2) slides in the cavity and is used to drive the valve flaps (3) to control the opening and closing of the air inlet (4).

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