Wireless intelligent real-time monitoring and early warning system for internal leakage of fluid valve

Abstract

The utility model discloses a wireless intelligent real-time monitoring and early warning system for internal leakage of a fluid valve. The wireless intelligent real-time monitoring and early warning system mainly comprises a fluid pipeline, the fluid valve, a measuring device, a signal generator, an intelligent repeater, a wireless data collector, a communication cable, a server, a communication cable or hard wiring and a monitoring device, the measuring device is connected with the signal generator, transmission of measuring signals to the server is achieved through the signal generator, the intelligent repeater and the wireless data collector in sequence, the server analyzes and intelligently judges the signals, and a judgment result is sent to the monitoring device through a communication cable or a hard wiring. Real-time online monitoring, control and early warning of fluid valve inner leakage are realized.

Description

Technical Field

[0001] The utility model relates to a fluid valve monitoring system, in particular to a wireless intelligent real-time monitoring and early warning system for internal leakage of a fluid valve. Background Art

[0002] In some industrial enterprises and daily life, fluid valve internal leakage often occurs due to wear of the fluid valve sealing surface, aging and loosening of the packing, mismatch between the valve seat and the valve core, spring failure, temperature changes and production process defects. If the internal leakage of the fluid valve is not discovered in time, it often leads to secondary failures of the equipment. For example, the internal leakage of the steam soot blower valves in different parts of the power generation enterprise is likely to cause leakage of the water-cooled wall or heating surface of the corresponding part, such as the blowing damage and internal leakage of the boiler water-cooled wall, superheater, reheater and economizer, causing shutdown and bringing great losses; for example, the internal leakage of the primary air valve and cold air valve of the power plant is likely to cause temperature instability in the coal mill, resulting in a decrease in the coal mill output, and at the same time affecting the boiler combustion stability and boiler efficiency; the internal leakage of the hazardous gas valve is also likely to cause casualties. Currently, most commonly used valve internal leakage monitoring devices are handheld or wired. The present invention is designed to reduce the harm caused by harmful or dangerous fluids to personnel using handheld leak detection devices, reduce the cost of wired leak detection devices, avoid the occurrence of secondary accidents, and realize wireless real-time monitoring of fluid valve internal leakage. Summary of the Invention

[0003] Internal leakage of fluid valves in important parts is difficult to detect. In order to reduce the harm caused by harmful or dangerous fluids to personnel using handheld leak detection devices, reduce the cost of wired leak detection devices, and reduce the occurrence of secondary accidents, wireless real-time intelligent monitoring of internal leakage of fluid valves is realized, thereby improving the economy and safety of equipment maintenance.

[0004] The wireless intelligent real-time monitoring and early warning system for fluid valve internal leakage mainly includes a fluid pipeline, a fluid valve, a measuring device, a signal generator, an intelligent repeater, a wireless data acquisition device, a communication cable, a server, a communication cable or hard wiring, and a monitoring device. The measuring device is installed in the straight pipe section of the fluid pipeline after the fluid valve to be measured and is connected to the signal generator. The signal generator sends a measurement signal through the signal generator. The measurement signal is forwarded to the wireless data acquisition device through the intelligent repeater. The wireless data acquisition device is capable of collecting measurement signals forwarded by multiple sets of intelligent repeaters and connecting to the server via a communication cable to realize transmission of the measurement signals to the server. The measurement signals are analyzed in the server and, through preprocessing and intelligent judgment, the judgment results are stored in the database of the server. At the same time, the judgment results are sent to the monitoring device via a communication cable or hard wiring, realizing real-time online monitoring, control and early warning of fluid valve internal leakage. Multiple sets of measuring devices, signal generators, intelligent repeaters, wireless data acquisition devices, communication cables, servers, communication cables or hard wiring, and monitoring devices can realize intelligent real-time monitoring of internal leakage of multiple valves, forming a monitoring and early warning system for valves in the target area.

[0005] Measuring devices, installed on the straight pipe section of the fluid pipeline after the fluid valve in the direction of fluid flow, include temperature measuring devices such as thermocouples, thermal resistors, or ultrasonic leak detection devices, flow measuring devices and pressure measuring devices, including non-invasive and invasive measuring devices.

[0006] The monitoring device can be a DCS system and its client, or a SIS system and its client, or an independent monitoring machine. When the monitoring device is a DCS system and its client, the communication cable or hard wiring can be a communication cable or a hard wiring; when the monitoring device is a SIS system and its client, or an independent monitoring machine, the communication cable or hard wiring is a communication cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 Schematic diagram of the present invention DETAILED DESCRIPTION

[0008] The following examples are provided to provide a better understanding of the present invention. These examples are merely illustrative of the present invention and do not limit the scope of the present invention.

[0009] The present invention will be further described with reference to the accompanying drawings.

[0010] The wireless intelligent real-time monitoring and early warning system for internal leakage of fluid valves mainly includes a fluid pipeline 1, a fluid valve 2, a measuring device 3, a signal generator 4, an intelligent repeater 10, a wireless data acquisition device 9, a communication cable 8, a server 7, a communication cable or hard wiring 6, and a monitoring device 5; the measuring device 3 is installed in the straight pipe section of the fluid pipeline 1 behind the fluid valve 2 to be measured, and is connected to the signal generator 4, and sends a measurement signal through the signal generator 4. The measurement signal is forwarded to the wireless data acquisition device 9 through the corresponding intelligent repeater 10. The wireless data acquisition device 9 has the function of collecting the measurement signals forwarded by multiple sets of intelligent repeaters and transmitting them through the communication cable. 8 is connected to the server 7 to realize the transmission of the measurement signal to the server 7. The measurement signal is analyzed in the server 7, and through preprocessing and intelligent judgment, the judgment result is stored in the database in the server. At the same time, the judgment result is sent to the monitoring device 6 through the communication cable or hard wiring 6 to realize real-time online monitoring, control and early warning of fluid valve leakage; multiple sets of measuring devices 3, signal generators 4, intelligent repeaters 10, wireless data acquisition devices 9, communication cables 8, together with the server 7, communication cables or hard wiring 6, and monitoring devices 5 can realize intelligent real-time monitoring of multiple valve leakage, forming a monitoring and early warning system for valves in the target area.

[0011] The measuring device is installed on the straight pipe section of the fluid pipeline 1 behind the fluid valve 2 in the direction of fluid flow, and includes a temperature measuring device 3, such as a thermocouple, a thermal resistor, or an ultrasonic leak detection device, a flow measuring device, and a pressure measuring device, including non-invasive and invasive types. Thermocouples and thermal resistors can be non-invasive to measure the pipe wall temperature, or invasive to measure the fluid temperature; ultrasonic leak detection devices are mostly non-invasive; flow measuring devices and pressure measuring devices are mostly invasive measuring devices; wherein the fluid valve 2 is installed on the fluid pipeline 1, Figure 1 The direction of the arrow is the flow direction of the fluid.

[0012] The monitoring device 5 can be a DCS system and its client, or a SIS system and its client, or an independent monitoring machine. When the monitoring device 5 is a DCS system and its client, the communication cable or hard wiring 6 can be a communication cable or a hard wiring; when the monitoring device 5 is a SIS system and its client, or an independent monitoring machine, the communication cable or hard wiring 6 is a communication cable.

[0013] The beneficial effects of the utility model are: it can realize wireless remote real-time monitoring of valve internal leakage, prevent secondary accidents caused by valve internal leakage and losses caused by abnormal shutdown of the unit, reduce personal injuries caused by valve internal leakage, reduce the cost of valve wired monitoring, reduce the labor intensity and labor cost of personnel inspection, thereby improving the management level of the unit and the economy and safety of operation.

Claims

1. The wireless intelligent real-time monitoring and early warning system for fluid valve internal leakage mainly includes fluid pipelines, fluid valves, measuring devices, signal generators, intelligent repeaters, wireless data acquisition devices, communication cables, servers, communication cables or hard wiring, and monitoring devices. It is characterized by The measuring device is installed in the straight pipe section of the fluid pipeline behind the fluid valve to be measured and is connected to the signal generator. The signal generator communicates wirelessly with the intelligent repeater and the wireless data acquisition device in turn. The wireless data acquisition device is connected to the server via a communication cable. The server analyzes, preprocesses and intelligently judges the measurement signal. The server sends the judgment result to the monitoring device via the communication cable or hard wiring to perform real-time online monitoring, control and early warning of fluid valve leakage. Multiple sets of measuring devices, signal generators, intelligent repeaters, wireless data acquisition devices, communication cables, servers, communication cables or hard wiring, and monitoring devices constitute a monitoring and early warning system for valve leakage in the target area.

2. The wireless intelligent real-time monitoring and early warning system for fluid valve internal leakage according to claim 1 is characterized by: The measuring device is installed on the straight pipe section of the fluid pipeline after the fluid valve in the direction of fluid flow, including temperature measuring devices, or ultrasonic leak detection devices, flow measuring devices and pressure measuring devices, including non-invasive and invasive measuring devices.

3. The wireless intelligent real-time monitoring and early warning system for fluid valve internal leakage according to claim 1 is characterized by: The monitoring device can be a DCS system and its client, or a SIS system and its client or an independent monitoring machine. When the monitoring device is a DCS system and its client, the communication cable or hard wiring can be a communication cable or a hard wiring; when the monitoring device is a SIS system and its client or an independent monitoring machine, the communication cable or hard wiring is a communication cable.

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