On-line leakage diagnosis device and method for fuel vapor blowing system

Abstract

The present invention discloses an online leakage diagnosis device and method for a fuel vapor blowing system, comprising a delivery pipeline and an information receiving unit, wherein the outer surfaces of both ends of the delivery pipeline are sleeved with fixed sleeves, the upper surfaces of the two fixed sleeves are vertically connected with adjustment rods, a fixed pipe is horizontally connected between the upper ends of the two adjustment rods, a suction fan is embedded and installed on the upper surface of one end of the fixed pipe, and suction hoods are evenly arranged on the lower surface of the fixed pipe. The present invention relates to the technical field of fuel vapor blowing systems, and the online leakage diagnosis device for the fuel vapor blowing system is electrically connected to the output ends of the air pressure sensor, the temperature sensor and the gas concentration detection sensor through the input end of the PLC controller through wires. When the fuel vapor leaks, the air pressure sensor, the temperature sensor and the gas concentration detection sensor can diagnose the steam leakage at the same time, achieving a triple effect.

Description

Technical Field

[0001] The invention relates to the technical field of fuel vapor blowing systems, and in particular to an online leakage diagnosis device and method for a fuel vapor blowing system. Background Art

[0002] Fuel oil refers to the black viscous residue left after the distillation of crude oil, or its mixture with lighter components. It plays a very important role in our industry. The fuel oil steam boiler is a steam boiler that uses fuel oil (such as diesel) as fuel. It is divided into LHS type vertical fuel oil steam boiler and WNS type horizontal fuel oil steam boiler. It heats the fuel oil to generate steam, and the steam is blown into the boiler to heat some materials in the boiler.

[0003] In the fuel vapor blowing system, steam is transported in the pipeline. After long-term use, the pipeline may age and cause steam leakage. However, there is currently no good diagnostic device for fuel vapor leakage. Therefore, when fuel vapor leaks, the staff cannot be informed in the first time, which may cause a fire and pose a certain threat to the life safety of personnel. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides an online leakage diagnosis device and method for a fuel vapor blowing system, which solves the problem that there is currently no good diagnostic device for fuel vapor leakage. Therefore, when fuel vapor leaks, the staff cannot be informed in the first time, which may cause a fire and pose a certain threat to the life safety of the personnel.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: an online leakage diagnosis device and method for a fuel vapor blowing system, comprising a delivery pipeline and an information receiving unit, wherein the outer surfaces of both ends of the delivery pipeline are sleeved with fixed sleeves, the upper surfaces of the two fixed sleeves are vertically connected with adjustment rods, a fixed pipe is horizontally connected between the upper ends of the two adjustment rods, a suction fan is embedded and installed on the upper surface of one end of the fixed pipe, and suction hoods are evenly arranged on the lower surface of the fixed pipe, a temperature sensor is arranged at a position between each suction hood on the lower surface of the fixed pipe, and an electromagnetic valve and an air pressure sensor are respectively embedded and installed on the upper surface of both ends of the delivery pipeline at a position on one side of the fixed sleeve. The device is a device for controlling the flow of gas and the air pressure. The outer surface of the delivery pipeline is evenly sleeved with a mounting sleeve at a position between the solenoid valve and the air pressure sensor. The upper surface of the mounting sleeve is fixedly connected with a gas concentration detection sensor. Two limit rods are vertically symmetrically connected to the middle position of the lower surface of the delivery pipeline. A PLC controller is fixedly connected between the lower ends of the two limit rods. An alarm is fixedly installed on one side surface of the PLC controller. The output end of the PLC controller is electrically connected to the input ends of the solenoid valve and the suction fan, the alarm and the information receiving unit through wires, and the input end of the PLC controller is electrically connected to the output ends of the air pressure sensor, the temperature sensor and the gas concentration detection sensor through wires.

[0006] Preferably, the air outlet end of the suction fan is fixedly connected to an exhaust pipe, and one end of the exhaust pipe is arranged outdoors.

[0007] Preferably, the number of the temperature sensors and the gas concentration detection sensors are set accordingly according to the length of the delivery pipeline, and the interval between the gas concentration detection sensors is 2m.

[0008] Preferably, the adjusting rod comprises a slide cylinder, a slide shaft is slidably embedded in the upper end of the slide cylinder, and the slide cylinder and the slide shaft are fixedly connected by a fixing bolt.

[0009] Preferably, the solenoid valve is located at an air inlet end, and the air pressure sensor is located at an air outlet end.

[0010] Preferably, the PLC controller includes a power module, a display module and a storage module, the output end of the power module is electrically connected to the display module and the storage module respectively through wires, and the display module and the storage module are bidirectionally connected through wires.

[0011] Preferably, the information receiving unit includes a text message editing module, a text message decoding module and a mobile phone text message APP, the output end of the text message editing module is electrically connected to the text message decoding module through a wire, and data is transmitted between the text message decoding module and the mobile phone text message APP through a communication module.

[0012] Preferably, an online leakage diagnosis device and method for a fuel vapor blowing system, wherein the diagnosis method comprises the following steps:

[0013] Step 1: First, place each component according to Figure 1 Assemble it in the right way, then loosen the fixing bolts, slide the sliding shaft to adjust the position of the air hood and the temperature sensor, after adjustment, tighten the fixing bolts, and then pass one end of the exhaust pipe to the outside.

[0014] Step 2: When steam leaks, the pressure inside the conveying pipeline will decrease, the value of the air pressure sensor will become smaller, the air pressure sensor will transmit the signal to the PLC controller, the gas concentration detection sensor will detect the concentration of the steam, the gas concentration detection sensor will transmit the signal to the PLC controller, and the temperature of the steam is very high, the temperature sensor will detect the temperature of the steam, the temperature sensor will transmit the signal to the PLC controller, when the PLC controller receives the signals from the temperature sensor, the air pressure sensor and the gas concentration detection sensor, the PLC controller will transmit the signals to the suction fan, the alarm and the information receiving unit respectively, and the PLC controller will display the location where the temperature sensor or the gas concentration detection sensor sends the signal on the display module, so that the staff can find the location of the fault easily.

[0015] Step 3: When the suction fan, the alarm and the information receiving unit receive the information sent by the PLC controller, the suction fan will draw the leaked steam into the fixed pipe, so that it will be discharged to the outside from the exhaust pipe to prevent the steam from causing poisoning to people. The alarm will make a sound to remind the staff. When the information receiving unit receives the information, the SMS editing module will edit the leakage information, and then the SMS decoding module will decode the leakage information. Finally, the leaked information is transmitted to the mobile phone SMS APP through the communication module, and the staff is notified by SMS.

[0016] Beneficial Effects

[0017] The present invention provides an online leakage diagnosis device and method for a fuel vapor blowing system, which has the following beneficial effects compared with the prior art:

[0018] (1) The online leakage diagnosis device of the fuel vapor blowing system is electrically connected to the input ends of the solenoid valve, the suction fan, the alarm and the information receiving unit through the output end of the PLC controller through wires, and the input end of the PLC controller is electrically connected to the output ends of the air pressure sensor, the temperature sensor and the gas concentration detection sensor through wires. When the fuel vapor leaks, the air pressure sensor, the temperature sensor and the gas concentration detection sensor can diagnose the steam leakage at the same time, which has a triple effect. The temperature sensor and the gas concentration detection sensor can detect multiple positions on the conveying pipeline, thereby improving the accuracy of diagnosis. When a leak occurs, the staff can be reminded not only by the alarm, but also by text messages, so that the staff can know the steam leakage information in time.

[0019] (2) The online leakage diagnosis device of the fuel vapor blowing system has two fixing sleeves with adjusting rods vertically connected to the upper surfaces thereof, a fixing pipe horizontally connected between the upper ends of the two adjusting rods, a suction fan embedded in the upper surface of one end of the fixing pipe, and suction hoods evenly arranged on the lower surface of the fixing pipe. After the steam leaks, the PLC controller can control the suction fan to work, and the suction fan can discharge the steam generated by the leak to the outside in time, so as to prevent the indoor steam concentration from being too high and causing poisoning to personnel. The device has played a role in protecting the life safety of personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A three-dimensional diagram of the structure of the present invention;

[0021] Figure 2 is a schematic diagram of the adjusting rod structure of the present invention;

[0022] Figure 3 It is the framework diagram of the diagnostic principle of the present invention;

[0023] Figure 4 It is the principle framework diagram of the PLC controller of the present invention;

[0024] Figure 5 It is a principle framework diagram of the information receiving unit of the present invention.

[0025] In the figure: 1. conveying pipeline; 2. fixing sleeve; 3. adjusting rod; 31. sliding cylinder; 32. sliding shaft; 33. fixing bolt; 4. fixing pipe; 5. suction fan; 51. exhaust pipe; 6. suction hood; 7. temperature sensor; 8. solenoid valve; 9. air pressure sensor; 10. installation sleeve; 11. gas concentration detection sensor; 12. limit rod; 13. PLC controller; 131. power module; 132. display module; 133. storage module; 14. alarm; 15. information receiving unit; 151. SMS editing module; 152. SMS decoding module; 153. communication module; 154. mobile phone SMS APP. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] See also Figure 1-5The present invention provides a technical solution: an online leakage diagnosis device and method for a fuel vapor blowing system, comprising a delivery pipeline 1 and an information receiving unit 15, wherein the outer surfaces of both ends of the delivery pipeline 1 are sleeved with fixed sleeves 2, the upper surfaces of the two fixed sleeves 2 are vertically connected with adjustment rods 3, a fixed pipe 4 is horizontally connected between the upper ends of the two adjustment rods 3, a suction fan 5 is embedded and installed on the upper surface of one end of the fixed pipe 4, an exhaust pipe 51 is fixedly connected to the air outlet end of the suction fan 5, and one end of the exhaust pipe 51 is arranged outdoors, in order to discharge steam outdoors, suction hoods 6 are evenly arranged on the lower surface of the fixed pipe 4, and a temperature sensor 7 is arranged at a position between each suction hood 6 on the lower surface of the fixed pipe 4, and the adjustment rod 3 includes a slide cylinder 31 A sliding shaft 32 is embedded in the upper end of the slide cylinder 31, and the slide cylinder 31 and the slide shaft 32 are fixedly connected by fixing bolts 33. In order to facilitate the adjustment of the position of the suction hood 6 and the temperature sensor 7 of model JXBS-3001, the upper surfaces of both ends of the conveying pipeline 1 are respectively embedded with a solenoid valve 8 and an air pressure sensor 9 at one side of the fixed sleeve 2. The position of the solenoid valve 8 is the air inlet end, and the position of the air pressure sensor 9 is the air outlet end. When the air pressure sensor 9 of model LU-THG detects an abnormality, the solenoid valve 8 can shut down the steam delivery in time. The outer surface of the conveying pipeline 1 is evenly sleeved with an installation sleeve 10 at a position between the solenoid valve 8 and the air pressure sensor 9, and the upper surface of the installation sleeve 10 is fixedly connected with a gas The number of concentration detection sensors 11, temperature sensors 7 and gas concentration detection sensors 11 are set accordingly according to the length of the conveying pipeline 1. The interval between the gas concentration detection sensors 11 is 2m. In order to diagnose multiple positions on the conveying pipeline 1 and improve the accuracy, two limit rods 12 are vertically symmetrically connected to the middle position of the lower surface of the conveying pipeline 1. A PLC controller 13 is fixedly connected between the lower ends of the two limit rods 12. The PLC controller 13 includes a power module 131, a display module 132 and a storage module 133. The output end of the power module 131 is electrically connected to the display module 132 and the storage module 133 through a wire, and the display module 132 and the storage module 133 are connected through The wire realizes a bidirectional connection. When steam leaks, the PLC controller 13 of model KG316T220XK will display the information on the display module 132, the storage module 133 will store the information, and the power module 131 can play a power supply role. An alarm 14 is fixedly installed on the surface of one side of the PLC controller 13, and the output end of the PLC controller 13 is electrically connected to the solenoid valve 8 and the suction fan 5, the alarm 14 and the input end of the information receiving unit 15 through the wire. The information receiving unit 15 includes a short message editing module 151, a short message decoding module 152 and a mobile phone short message APP 154. The output end of the short message editing module 151 is electrically connected to the short message decoding module 152 through the wire.The SMS decoding module 152 and the mobile phone SMS APP 154 transmit data through the communication module 153. When a leak occurs, the SMS editing module 151 edits the leak information, and then the SMS decoding module 152 decodes the information, and finally transmits it to the mobile phone SMS APP 154 through the communication module 153 to notify the staff. The input end of the PLC controller 13 is electrically connected to the output end of the air pressure sensor 9, the temperature sensor 7 and the gas concentration detection sensor 11 through wires.

[0028] According to a further embodiment of the present invention, the diagnostic method comprises the following steps:

[0029] Step 1: First, place each component according to Figure 1 Assemble it in the right way, then loosen the fixing bolts, slide the sliding shaft to adjust the position of the air hood and the temperature sensor, after adjustment, tighten the fixing bolts, and then pass one end of the exhaust pipe to the outside.

[0030] Step 2: When steam leaks, the pressure inside the conveying pipeline 1 will decrease, the value of the air pressure sensor 9 will become smaller, and the air pressure sensor 9 will transmit a signal to the PLC controller 13. The gas concentration detection sensor 11 will detect the concentration of the steam, and the gas concentration detection sensor 11 will transmit a signal to the PLC controller 13. The temperature of the steam is very high, and the temperature sensor 7 will detect the temperature of the steam, and the temperature sensor 7 will transmit a signal to the PLC controller 13. When the PLC controller 13 receives the signals from the temperature sensor 7, the air pressure sensor 9 and the gas concentration detection sensor 11, the PLC controller 13 transmits the signals to the suction fan 5, the alarm 14 and the information receiving unit 15 respectively. At the same time, the PLC controller 13 displays the location where the temperature sensor 7 or the gas concentration detection sensor 11 sends a signal on the display module 132, so that the staff can find the location of the fault.

[0031] Step three: When the suction fan 5, the alarm 14 and the information receiving unit 15 receive the information sent by the PLC controller 13, the suction fan 5 draws the leaked steam into the fixed pipe 4, so that it is discharged to the outside from the exhaust pipe 51 to prevent the steam from causing poisoning of people. The alarm 14 will make a sound to remind the staff. When the information receiving unit 15 receives the information, the SMS editing module 151 will edit the leakage information, and then the SMS decoding module 152 will decode the leakage information. Finally, the leaked information is transmitted to the mobile phone SMS APP154 through the communication module 153, and the staff is notified by SMS.

[0032] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0033] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An online leakage diagnosis device for a fuel vapor blowing system, comprising a delivery pipeline (1) and an information receiving unit (15), characterized in that: The outer surfaces of both ends of the conveying pipeline (1) are sleeved with fixed sleeves (2), the upper surfaces of the two fixed sleeves (2) are vertically connected with adjustment rods (3), a fixed pipe (4) is horizontally connected between the upper ends of the two adjustment rods (3), a suction fan (5) is embedded and installed on the upper surface of one end of the fixed pipe (4), and suction hoods (6) are evenly arranged on the lower surface of the fixed pipe (4), the air outlet end of the suction fan (5) is fixedly connected with an exhaust pipe (51), one end of the exhaust pipe (51) is arranged outdoors, a temperature sensor (7) is arranged on the lower surface of the fixed pipe (4) at a position between each suction hood (6), and a solenoid valve (8) and an air pressure sensor (9) are respectively embedded and installed on the upper surfaces of both ends of the conveying pipeline (1) at a position on one side of the fixed sleeve (2), and the outer surface of the conveying pipeline (1) is located at the solenoid valve (8) A mounting sleeve (10) is evenly sleeved and arranged between the position of the conveying pipe (1) and the air pressure sensor (9), the upper surface of the mounting sleeve (10) is fixedly connected to a gas concentration detection sensor (11), two limit rods (12) are vertically symmetrically connected to the middle position of the lower surface of the conveying pipe (1), a PLC controller (13) is fixedly connected between the lower ends of the two limit rods (12), an alarm (14) is fixedly installed on one side surface of the PLC controller (13), and the output end of the PLC controller (13) is electrically connected to the input end of the solenoid valve (8) and the suction fan (5), the alarm (14) and the information receiving unit (15) through wires, and the input end of the PLC controller (13) is electrically connected to the output end of the air pressure sensor (9) and the temperature sensor (7) and the gas concentration detection sensor (11) through wires; The adjusting rod (3) comprises a slide cylinder (31), a slide shaft (32) is slidably mounted on the upper end of the slide cylinder (31), and the slide cylinder (31) and the slide shaft (32) are fixedly connected by a fixing bolt (33); The information receiving unit (15) comprises a short message editing module (151), a short message decoding module (152) and a mobile phone short message APP (154); the output end of the short message editing module (151) is electrically connected to the short message decoding module (152) via a wire; data is transmitted between the short message decoding module (152) and the mobile phone short message APP (154) via a communication module (153).

2. The online leakage diagnosis device for the fuel vapor blowing system according to claim 1, characterized in that: The number of the temperature sensors (7) and the gas concentration detection sensors (11) are set accordingly according to the length of the delivery pipeline (1), and the interval between the gas concentration detection sensors (11) is 2 m.

3. The online leakage diagnosis device for the fuel vapor blowing system according to claim 1, characterized in that: The position of the solenoid valve (8) is the air inlet end, and the position of the air pressure sensor (9) is the air outlet end.

4. The online leakage diagnosis device for the fuel vapor blowing system according to claim 1, characterized in that: The PLC controller (13) comprises a power module (131), a display module (132) and a storage module (133); the output end of the power module (131) is electrically connected to the display module (132) and the storage module (133) respectively via wires; and the display module (132) and the storage module (133) are bidirectionally connected via wires.

5. A diagnostic method for an online leakage diagnostic device for a fuel vapor blowing system according to any one of claims 1 to 4, characterized in that: The following steps are involved: Step 1: First, assemble the various components, then loosen the fixing bolts (33), slide the sliding shaft (32) to adjust the positions of the air intake hood (6) and the temperature sensor (7), and after adjustment, tighten the fixing bolts (33), and then pass one end of the exhaust pipe (51) to the outside; Step 2: When steam leaks, the pressure inside the conveying pipeline (1) will decrease, the value of the air pressure sensor (9) will decrease, and the air pressure sensor (9) will transmit a signal to the PLC controller (13). The gas concentration detection sensor (11) will detect the concentration of the steam, and the gas concentration detection sensor (11) will transmit a signal to the PLC controller (13). The temperature of the steam is very high, and the temperature sensor (7) will detect the temperature of the steam, and the temperature sensor (7) will transmit a signal to the PLC controller (13). When the PLC controller (13) receives the signals from the temperature sensor (7), the air pressure sensor (9) and the gas concentration detection sensor (11), the PLC controller (13) transmits the signals to the suction fan (5), the alarm (14) and the information receiving unit (15) respectively. At the same time, the PLC controller (13) displays the location where the temperature sensor (7) or the gas concentration detection sensor (11) sends a signal on the display module (132), so that the staff can find the location of the fault easily. Step 3: When the suction fan (5), the alarm (14) and the information receiving unit (15) receive the information sent by the PLC controller (13), the suction fan (5) draws the leaked steam into the fixed pipe (4) so ​​that it is discharged from the exhaust pipe (51) to the outside to prevent the steam from causing poisoning to personnel. The alarm (14) will make a sound to remind the staff. When the information receiving unit (15) receives the information, the SMS editing module (151) will edit the leakage information, and then the SMS decoding module (152) will decode the leakage information. Finally, the leakage information is transmitted to the mobile phone SMS APP (154) through the communication module (153) to notify the staff by SMS.

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