System for remote monitoring and alarm control of air compressor

Abstract

The utility model belongs to the technical field of remote monitoring of air compressors, and discloses a system for remote monitoring and alarm control of an air compressor, which comprises an air compressor side acquisition control part, a power distribution cabinet power supply monitoring part, an air storage tank drainage and pressure monitoring part, an outdoor environment monitoring part and a duty room alarm terminal. Data are summarized to a duty room alarm terminal in a lora networking mode, real-time monitoring of the operation state of the air pressure machine is achieved, and meanwhile the functions of air storage cylinder drainage monitoring and control and power supply cabinet power supply monitoring are added. Problems and hidden dangers existing in an existing air compressor monitoring method are effectively solved, the operation intensity of inspection personnel is reduced to a certain degree, and the fault processing speed is increased.

Description

Technical Field

[0001] The utility model belongs to the technical field of remote monitoring of air compressors, and in particular relates to a system for remote monitoring and alarm control of air compressors. Background Art

[0002] Air compressors are important Class A equipment in existing railway production units, providing air sources for various workplaces to ensure the smooth completion of daily production tasks. Generally, air compressors are installed in dedicated air compressor rooms, with multiple parallel air storage cylinders installed outdoors, and timed drain valves installed at the ends of the air storage cylinders. Once an air compressor fails to operate or the air pressure from the air source is insufficient, it will not only affect the completion of production tasks, but also pose a serious safety hazard. In the existing monitoring system, manual scheduled inspections are mainly used to record the operation status of the air compressor. This solution is not only labor-intensive, but also has the disadvantage of a long inspection time interval. Therefore, a system for remote monitoring and alarm control of air compressors is proposed, which can ensure the normal operation of the air compressor in real time. Utility Model Content

[0003] In view of this, the purpose of the present invention is to provide a system for remote monitoring and alarm control of an air compressor to solve the problems pointed out in the above background technology.

[0004] In order to achieve the above-mentioned utility model purpose, the technical solutions adopted are as follows:

[0005] A system for remote monitoring and alarm control of an air compressor, comprising:

[0006] The air compressor side acquisition and control part has two groups, which are used to monitor two air compressors respectively. They include 380V to 12V power supply module, 485 isolation hub, lora remote synchronization switch 1 and lora wireless data transmission module 1. The air compressor side acquisition and control part realizes remote emergency stop of air compressor, air compressor operation data monitoring and remote transmission of control data. The RS485 interface on the back of the air compressor panel is connected to the 485 interface of the lora wireless data transmission module via the 485 isolation hub. The lora wireless data transmission module 1 is connected to the duty room wireless terminal lora module. Data is transmitted to each other, and the 485 isolation hub is used to protect the air compressor control panel interface circuit and the LoRa module interface circuit to prevent surge voltage from entering the communication bus and causing damage to the communication interface circuit; the LoRa remote synchronization switch is linked to the LoRa remote synchronization switch of the wireless alarm display terminal in the duty room in real time. When the emergency stop button of the wireless alarm display terminal in the duty room is pressed, the LoRa remote synchronization switch on the air compressor side is closed, and the emergency stop switch is disconnected. The feedback signal is synchronized to the wireless alarm display terminal in the duty room, which is equivalent to pressing the emergency stop switch on the air compressor side. The duty personnel can observe whether the remote emergency stop signal is delivered;

[0007] The power supply monitoring part of the distribution cabinet includes an auxiliary power supply 1, a 12V uninterruptible power supply 1, a three-phase intelligent voltage and current monitoring module, a power off alarm, an RS485 smoke sensor, and a lora wireless data transmission module 2. The power supply monitoring part of the distribution cabinet realizes wireless data communication through the built-in lora wireless data transmission module 2 and the lora remote synchronization switch 3 of the wireless alarm display terminal in the duty room. The power supply monitoring part of the distribution cabinet realizes real-time monitoring of the real-time operating voltage, current, and active power data of the two air compressors; when a power off fault occurs, the power off alarm sends the power off information to the lora remote synchronization switch 3 of the wireless alarm display terminal in the duty room through the lora wireless data transmission module 2, and the corresponding indicator light of the wireless alarm display terminal in the duty room flashes to alarm;

[0008] The gas tank drainage and pressure monitoring part includes auxiliary power supply 2, zero gas loss automatic drainer and heating control component, lora remote synchronous switch 2, diffused silicon pressure sensor, zero gas loss automatic drainer is installed at the end of the gas tank, and the zero gas loss automatic drainer drainage adopts the principle of capacitance induction. When the water in the drain pipe enters the drain valve body and the water level gradually rises, the capacitance sensor sends a signal to the control main board, and then the pilot valve is activated, the diaphragm valve opens the drain port, and the internal liquid is discharged; in the above process, the diaphragm valve can only be opened when the condensate inside the valve body reaches a certain height. When the condensate is drained, the diaphragm valve closes immediately. During the whole process, only the condensate is discharged, and the compressed gas will not be discharged, which will not cause Any loss of compressed gas; the drain valve has a timed self-check function. When it is powered on continuously for about 2 hours, the main control sends an opening signal to the diaphragm valve, and the diaphragm valve opens for more than 2 seconds. The alarm interface of the zero-gas-loss automatic drainer is connected to the control box LORA remote synchronization switch 3 through a shielded cable. When the drainer has a drainage blockage failure, the alarm signal is sent to the duty room wireless alarm display terminal through the lora synchronization switch. The heating part mainly starts automatic heating when the external ambient temperature is low and ice occurs inside the zero-gas-loss automatic drainer and in the pipeline. When the heater power is not turned on and ice is about to occur, an alarm signal is sent to the duty room wireless alarm display terminal to remind the duty personnel to check the heater power supply;

[0009] The outdoor environmental monitoring part includes an outdoor temperature and humidity sensor, an auxiliary power supply 3 and a LoRa wireless data transmission module 3. The LoRa wireless data transmission module 3 and the LoRa remote synchronization switch 3 of the duty room wireless alarm display terminal realize wireless data communication. Its main function is to collect outdoor environmental monitoring data and provide a reference basis for the drainer and pipeline anti-freezing. The duty room wireless alarm display terminal;

[0010] The duty room wireless alarm terminal includes a 10.1-inch touch serial port screen, four auxiliary power supplies, four LoRa wireless data transmission modules, a LoRa remote synchronization switch, two 12V uninterruptible power supplies, a 485 multi-channel cache hub, indicator lights, buttons, and a voice alarm circuit. The 10.1-inch touch screen serves as the main control, and it runs a 400M SOC processor inside. It supports standard communication protocols such as Modbus-RTU data analysis and is equipped with a standard RS485 interface. Custom display pages can be realized through configuration software, and multiple Modbus slave stations can be assigned to communicate with it through the configuration software.

[0011] As a further improvement of the present invention, the heating control component includes 4 RS485 temperature controllers, 4 solid-state contactors and 4 PT100 temperature sensors.

[0012] The beneficial effects of this utility model are as follows: the control system comprises five major parts: an air compressor-side data acquisition and control section, a power distribution cabinet power monitoring section, an air tank drainage and pressure monitoring section, an outdoor environmental monitoring section, and a duty room alarm terminal. Data is aggregated to the duty room alarm terminal via Lora networking, enabling real-time monitoring of the air compressor's operating status while also adding functions such as air tank drainage monitoring and control, and power cabinet power supply monitoring. This effectively resolves the problems and hidden dangers of existing air compressor monitoring methods, reduces the workload of patrol personnel, and speeds up troubleshooting. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The accompanying drawings, which constitute part of this application, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0014] Figure 1 It is a structural diagram of the present utility model.

[0015] Figure 1: 1. Air compressor side data acquisition and control section, 11. 380V to 12V power module, 12. 485 isolation hub, 13. Lora remote synchronization switch 1, 14. Lora wireless data transmission module 1, 2. Power distribution cabinet power monitoring section, 21. Auxiliary power supply 1, 22. 12V uninterruptible power supply 1, 23. Three-phase intelligent voltage and current monitoring module, 24. Power failure alarm, 25. RS485 smoke sensor, 26. Lora wireless data transmission module 2, 3. Gas tank drainage and pressure monitoring section, 31. Auxiliary power supply 2, 32. Zero gas loss automatic drain , 33. Heating control component, 34. Lora remote synchronous switch 2, 35. Diffused silicon pressure sensor, 4. Outdoor environmental monitoring part, 41. Outdoor temperature and humidity sensor, 42. Auxiliary power supply 3, 43. Lora wireless data transmission module 3, 5. Duty room wireless alarm terminal, 51. 10.1-inch touch serial port screen, 52. Auxiliary power supply 4, 53. Lora wireless data transmission module 4, 54. Lora remote synchronous switch, 55. 12V uninterruptible power supply 2, 56. 485 multi-channel cache hub, 57. Indicator light, 58. Button, 59. Voice alarm circuit. DETAILED DESCRIPTION

[0016] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0017] In order to enable those skilled in the art to better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings 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 in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of this application.

[0018] like Figure 1 As shown, a system for remote monitoring and alarm control of an air compressor includes:

[0019] The air compressor side acquisition and control part 1 is equipped with two groups, each used to monitor two air compressors, including a 380V to 12V power supply module 11, a 485 isolation hub 12, a lora remote synchronization switch 13 and a lora wireless data transmission module 14. The air compressor side acquisition and control part 1 realizes the remote emergency stop of the air compressor, the air compressor operation data monitoring and the remote transmission of control data. The RS485 interface on the back of the air compressor panel is connected to the 485 interface of the lora wireless data transmission module via the 485 isolation hub 12. The lora wireless data transmission module 14 is connected to the duty room wireless terminal lora The a module realizes mutual data transmission, among which the 485 isolation hub 12 is used to protect the air compressor control panel interface circuit and the LoRa module interface circuit to prevent surge voltage from entering the communication bus and causing damage to the communication interface circuit; the LoRa remote synchronization switch is linked to the LoRa remote synchronization switch 54 of the duty room wireless alarm display terminal in real time. When the emergency stop button of the duty room wireless alarm display terminal is pressed, the LoRa remote synchronization switch 13 on the air compressor side is closed, and the emergency stop switch is disconnected. The feedback signal is synchronized to the duty room wireless alarm display terminal, which is equivalent to pressing the emergency stop switch on the air compressor side. The duty personnel can observe whether the remote emergency stop signal is delivered;

[0020] The power supply monitoring part 2 of the distribution cabinet includes an auxiliary power supply 21, a 12V uninterruptible power supply 22, a three-phase intelligent voltage and current monitoring module 23, a power failure alarm 24, an RS485 smoke sensor 25, and a LoRa wireless data transmission module 26. The power supply monitoring part 2 of the distribution cabinet realizes wireless data communication through the built-in LoRa wireless data transmission module 26 and the LoRa remote synchronization switch 543 of the wireless alarm display terminal in the duty room. The power supply monitoring part 2 of the distribution cabinet realizes real-time monitoring of the real-time operating voltage, current, and active power data of the two air compressors. When a power failure occurs, the power failure alarm 24 sends the power failure information to the LoRa remote synchronization switch 543 of the wireless alarm display terminal in the duty room through the LoRa wireless data transmission module 26, and the corresponding indicator light 57 of the wireless alarm display terminal in the duty room flashes to alarm.

[0021] The gas tank drainage and pressure monitoring part 3 includes an auxiliary power supply 2 31, a zero-gas-loss automatic drainer 32 and a heating control component 33, a lora remote synchronization switch 2 34, and a diffused silicon pressure sensor 35. The zero-gas-loss automatic drainer 32 is installed at the end of the gas tank. The zero-gas-loss automatic drainer 32 uses the capacitance sensing principle for drainage. When the water in the drain pipe enters the drain valve body and the water level gradually rises, the capacitance sensor sends a signal to the control main board, and then the pilot valve is activated, the diaphragm valve opens the drain port, and the internal liquid is discharged; in the above process, the diaphragm valve can only be opened when the condensate inside the valve body reaches a certain height. When the condensate is drained, the diaphragm valve closes immediately. During the entire process, only the condensate is discharged, and the compressed gas will not be discharged. , which will not cause any loss of compressed gas; the drain valve has a timed self-check function. When it is powered on continuously for about 2 hours, the main control sends an opening signal to the diaphragm valve, and the diaphragm valve opens for more than 2 seconds; the alarm interface of the zero-gas-loss automatic drainer 32 is connected to the control box LORA remote synchronization switch 54 three through a shielded cable. When the drainer has a drainage blockage failure, the alarm signal is sent to the duty room wireless alarm display terminal through the lora synchronization switch. The heating part mainly starts automatic heating when the external ambient temperature is low and ice occurs inside and in the pipeline of the zero-gas-loss automatic drainer 32. When the heater power is not turned on and ice is about to occur, an alarm signal is sent to the duty room wireless alarm display terminal to remind the duty personnel to check the heater power supply;

[0022] The outdoor environmental monitoring part 4 includes an outdoor temperature and humidity sensor 41, an auxiliary power supply 3 42 and a LoRa wireless data transmission module 3 43. The LoRa wireless data transmission module 3 43 and the LoRa remote synchronization switch 54 3 of the duty room wireless alarm display terminal realize wireless data communication. Its main function is to collect outdoor environmental monitoring data and provide a reference basis for the antifreeze of the drainer and pipeline. The duty room wireless alarm display terminal;

[0023] The duty room wireless alarm terminal 5 includes a 10.1-inch touch serial port screen 51, an auxiliary power supply 4 52, a lora wireless data transmission module 4 53, a lora remote synchronization switch 54, a 12V uninterruptible power supply 2 55, a 485 multi-channel cache hub 56, an indicator light 57, a button 58, and a voice alarm circuit 59. The 10.1-inch touch screen serves as the main control, and a 400M SOC processor runs inside it. It supports standard communication protocols such as modbus-RTU data analysis and is equipped with a standard RS485 interface. Custom display pages can be realized through configuration software, and multiple modbus slave stations can be assigned through the configuration software to communicate with it.

[0024] The heating control assembly 33 includes 4 RS485 temperature controllers, 4 solid-state contactors and 4 PT100 temperature sensors.

[0025] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, improvements, component splits, or combinations that fall within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A system for remote monitoring and alarm control of air compressors, characterized by: include, The air compressor side acquisition and control part has two groups, each including a 380V to 12V power supply module, a 485 isolation hub, a lora remote synchronization switch and a lora wireless data transmission module. The RS485 interface on the back of the air compressor panel is connected to the 485 interface of the lora wireless data transmission module via the 485 isolation hub. The lora wireless data transmission module and the duty room wireless terminal lora module realize data transmission; the lora remote synchronization switch is linked to the LORA remote synchronization switch 3 of the duty room wireless alarm display terminal in real time; The power supply monitoring part of the distribution cabinet includes an auxiliary power supply 1, a 12V uninterruptible power supply 1, a three-phase intelligent voltage and current monitoring module, a power failure alarm, an RS485 smoke sensor, and a lora wireless data transmission module 2. The power supply monitoring part of the distribution cabinet realizes wireless data communication through the built-in lora wireless data transmission module 2 and the lora remote synchronization switch 3 of the wireless alarm display terminal in the duty room; The gas tank drainage and pressure monitoring part includes auxiliary power supply 2, zero gas loss automatic drainer and heating control component, Lora remote synchronization switch 2, and diffused silicon pressure sensor. The zero gas loss automatic drainer is installed at the end of the gas tank. The alarm interface of the zero gas loss automatic drainer is connected to the control box Lora remote synchronization switch 3 through a shielded cable. The outdoor environmental monitoring part includes an outdoor temperature and humidity sensor, an auxiliary power supply 3 and a LoRa wireless data transmission module 3. The LoRa wireless data transmission module 3 and the LoRa remote synchronization switch 3 of the wireless alarm display terminal in the duty room realize wireless data communication; The duty room wireless alarm terminal includes a 10.1-inch touch serial port screen, four auxiliary power supplies, four LoRa wireless data transmission modules, a LoRa remote synchronization switch, two 12V uninterruptible power supplies, a 485 multi-channel cache hub, indicator lights, buttons, and a voice alarm circuit.

2. The system for remote monitoring and alarm control of an air compressor according to claim 1, characterized in that: The heating control component includes 4 RS485 temperature controllers, 4 solid-state contactors and 4 PT100 temperature sensors.

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