CN210398877U - Automatic detection alarm device for pipeline leakage - Google Patents

Abstract

The utility model provides a pipeline leakage automatic detection alarm device, including digital audio frequency analog output detecting element, multi-functional conduction pipe, prevent stifled unit, analog quantity optic fibre transmitting terminal, switching value optic fibre transmitting terminal, failure alarm unit, power monitoring unit, solenoid valve control unit, analog quantity optic fibre receiving terminal, switching value optic fibre receiving terminal, server PCIe control fastener, leakage alarm unit, monitoring recording unit, display element, communication unit, steam blows grey suppression unit, sound wave and blows grey suppression unit; the utility model can display the signal and temperature of the scene visually through the digital audio frequency analog quantity output detection unit; the optical fiber is used for signal transmission, so that the anti-interference capability is stronger, the response speed is higher, and the stability is higher; the leakage detection device is suitable for the leakage detection of pipeline systems in various production lines, and has low cost and strong practicability.

Description

Automatic detection alarm device for pipeline leakage

Technical Field

The utility model relates to a pipeline leakage automated inspection alarm device belongs to electric power system monitoring technology field.

Background

With the development of the power industry into the times of high capacity and high parameter, the number of furnace tubes of a boiler system in a modern thermal power plant is continuously increased, the system structure is gradually complicated, and the requirement on the reliability of the system operation is continuously improved. The furnace tube leakage will directly affect the safe and economic operation of the generator set, therefore, the detection and early warning equipment for the boiler tube leakage is increasingly important for the normal production of power generation enterprises. The existing common boiler tube leakage detection system basically still uses metal cables to transmit analog quantity signals and switching value signals, and in the production process, signals in the traditional cables can generate unstable conditions due to various external interferences, so that the effective judgment of the monitoring system on the leakage conditions is seriously influenced; meanwhile, the traditional control monitoring system basically adopts an industrial personal computer, is low in processing speed and stability and is difficult to adapt to the high-standard requirement of the modern boiler system of the power plant.

Disclosure of Invention

The utility model aims to overcome the above-mentioned defect that current power boiler pipeline monitoring facilities exists, provide a pipeline leakage automated inspection alarm device, carry out effective monitoring and management based on the early steam leakage phenomenon that sound frequency spectrum, temperature appear in to boiler pipeline transmission.

The technical solution of the utility model is as follows: the automatic detection and alarm device for the pipeline leakage comprises a digital audio analog quantity output detection unit, a multifunctional conduction pipe, an anti-blocking purging unit, an analog quantity optical fiber transmitting end, a switching quantity optical fiber transmitting end, a fault alarm unit, a power supply monitoring unit, an electromagnetic valve control unit, an analog quantity optical fiber receiving end, a switching quantity optical fiber receiving end, a PCIe control clamping piece of a server, a leakage alarm unit, a monitoring and recording unit, a display unit, a communication unit, a steam soot blowing inhibition unit and a sound wave soot blowing inhibition unit; one end of the multifunctional conduction pipe is connected with the surface of the boiler, the other end of the multifunctional conduction pipe is connected with the anti-blocking purging unit through a valve, and the surface of the multifunctional conduction pipe is provided with a digital audio frequency analog quantity output detection unit; the valve electric control switch of the anti-blocking purging unit is connected with the switching value optical fiber transmitting end, the output end of the digital audio frequency analog quantity output detection unit is simultaneously connected with the analog quantity optical fiber transmitting end and the input end of the switching value optical fiber transmitting end, and the input ends of the fault alarm unit, the power supply monitoring unit and the electromagnetic valve control unit are simultaneously connected with the output end of the switching value optical fiber transmitting end; the analog quantity optical fiber transmitting end is connected with an analog quantity optical fiber receiving end through an optical fiber, the switching quantity optical fiber transmitting end is connected with a switching quantity optical fiber receiving end through an optical fiber, and the input/output ends of the analog quantity optical fiber receiving end and the switching quantity optical fiber receiving end are simultaneously connected with a PCIe control clamping piece of the server; the output end of the PCIe control clamping piece of the server is respectively connected with the input ends of the leakage alarm unit, the monitoring and recording unit, the display unit and the communication unit, and the input end of the PCIe control clamping piece of the server is respectively connected with the output ends of the steam soot blowing inhibition unit and the sound wave soot blowing inhibition unit.

The utility model has the advantages that:

1) the digital audio analog output detection unit can intuitively display the signals and the temperature on site;

2) compared with the traditional cable, the cable has stronger anti-interference capability by using the optical fiber for signal transmission; the analog quantity and the switching value are input and output by adopting optical fiber ports, so that the response speed is higher and the stability is higher;

3) the PCIe server is used for replacing the traditional industrial personal computer, so that the performance is stronger, and the system is more stable;

4) the leakage detection device is suitable for the leakage detection of pipeline systems in various production lines, and has low cost and strong practicability.

Drawings

FIG. 1 is a schematic structural diagram of an automatic detection alarm device for pipeline leakage.

In the figure, 1 is a digital audio analog output detection unit, 2 is a multifunctional conduction pipe, 3 is an anti-blocking purging unit, 4 is an analog optical fiber transmitting end, 5 is a switching value optical fiber transmitting end, 6 is a fault alarm unit, 7 is a power supply monitoring unit, 8 is an electromagnetic valve control unit, 9 is an analog optical fiber receiving end, 10 is a switching value optical fiber receiving end, 11 is a server PCIe control card, 12 is a leakage alarm unit, 13 is a monitoring and recording unit, 14 is a display unit, 15 is a communication unit, 16 is a steam soot-blowing inhibition unit, and 17 is a sound wave soot-blowing inhibition unit.

Detailed Description

The technical solution of the present invention is further explained below with reference to the accompanying drawings.

The automatic detection and alarm device for pipeline leakage as shown in fig. 1 structurally comprises a digital audio analog output detection unit 1, a multifunctional conduction pipe 2, an anti-blocking purging unit 3, an analog optical fiber transmitting end 4, a switching value optical fiber transmitting end 5, a fault alarm unit 6, a power supply monitoring unit 7, an electromagnetic valve control unit 8, an analog optical fiber receiving end 9, a switching value optical fiber receiving end 10, a server PCIe control clamping piece 11, a leakage alarm unit 12, a monitoring and recording unit 13, a display unit 14, a communication unit 15, a steam soot blowing inhibition unit 16 and a sound wave soot blowing unit 17; one end of the multifunctional conduction pipe 2 is connected with the surface of the boiler, the other end of the multifunctional conduction pipe is connected with the anti-blocking purging unit 3 through a valve, and the surface of the multifunctional conduction pipe 2 is provided with a digital audio frequency analog quantity output detection unit 1; the valve electric control switch of the anti-blocking purging unit 3 is connected with the switching value optical fiber transmitting end 5, the output end of the digital audio frequency analog quantity output detection unit 1 is simultaneously connected with the analog quantity optical fiber transmitting end 4 and the input end of the switching value optical fiber transmitting end 5, and the input ends of the fault alarm unit 6, the power supply monitoring unit 7 and the electromagnetic valve control unit 8 are simultaneously connected with the output end of the switching value optical fiber transmitting end 5; the analog quantity optical fiber transmitting end 4 is connected with an analog quantity optical fiber receiving end 9 through an optical fiber, the switching quantity optical fiber transmitting end 5 is connected with a switching quantity optical fiber receiving end 10 through an optical fiber, and the input/output ends of the analog quantity optical fiber receiving end 9 and the switching quantity optical fiber receiving end 10 are simultaneously connected with a PCIe control clamping piece 11 of the server; the output end of the server PCIe control card 11 is respectively connected with the input ends of the leakage alarm unit 12, the monitoring and recording unit 13, the display unit 14 and the communication unit 15, and the input end of the server PCIe control card 11 is respectively connected with the output ends of the steam soot-blowing inhibition unit 16 and the sound wave soot-blowing inhibition unit 17.

The digital audio analog output detection unit 1 comprises a power supply detection module, a temperature detection module and a liquid crystal display module, wherein the model of the power supply detection module is NEL-A, the model of the temperature detection module is DS18B20, and the model of the liquid crystal display module is LCM 1602B; the type of the fault alarm unit 6 is L _ 1101; the power supply monitoring unit 7 is of the type SIWOFB-2A 40; the model number of the electromagnetic valve control unit 8 is N4V 210-08.

The anti-blocking blowing unit 3 is controlled by a pneumatic ball valve and is connected with an external air pipeline, the digital audio analog output detection unit 1 and the multifunctional transmission pipe 2 are automatically blown by a dust blowing port on the metal hose, and a dust blowing medium is compressed air.

The analog quantity optical fiber transmitting end 4, the switching quantity optical fiber transmitting end 5, the analog quantity optical fiber receiving end 9 and the switching quantity optical fiber receiving end all adopt 10UT-277SM optical fiber transceivers.

The leakage alarm unit 12 adopts a P8R8DIO 8-path isolation digital quantity input/8-path relay output card; the monitoring and recording unit 13 adopts a Soud Blaster Z sound card; the display unit 14 adopts a COT185E-APF01 liquid crystal display; the communication unit 15 adopts a TP-LINK TG-3269C self-adaptive PCI network card.

The analog quantity optical fiber transmitting end 4 transmits the collected audio signals to the analog quantity optical fiber receiving end 9 through the optical fiber by the signal collecting module; the open-volume optical fiber transmitting end 5 controls the electromagnetic valve through a program control system, detects the service condition of a power supply and analyzes and processes operation faults; then, the data is transmitted to a switching value optical fiber receiving end 10 through an optical fiber; the analog quantity optical fiber receiving end 9 and the switching value optical fiber receiving end 10 transmit the received analog quantity signals to a PCIe control card 11 of the server.

The steam soot-blowing suppression unit 16 and the sound wave soot-blowing suppression unit 17 are connected with an overall control system of an external boiler pipeline and are responsible for transmitting steam soot-blowing signals or sound wave soot-blowing signals to the PCIe control card 11 of the server.

The PCIe control card 11 of the server provides 32 paths of AD analog quantity input, the maximum single-channel sampling frequency reaches 500KSps, and the PCIe control card supports 32 paths of AD analog quantity input, 8 paths of DIO digital quantity input and output, 8 paths of PFI function programmable digital signals and 1 path of 32-bit multifunctional counters; the PCIe control card 11 of the server transmits data to the DCS through a serial port and a 485 communication module, displays the processed graphic data through a display unit 14, and plays the received signals through a monitoring and recording unit 13; when the PCIe system of the server detects leakage, recording the leakage point, and reserving the recording file in real time; meanwhile, the PCIe control card 11 of the server provides 8DIO digital input and output, and timely feeds back various detected alarm conditions on site through the leakage alarm unit 12. When the boiler system carries out normal steam soot blowing or sound wave soot blowing procedures, the PCIe control clamping piece 11 of the server receives steam soot blowing signals from the steam soot blowing suppression unit 16 or sound wave soot blowing signals from the sound wave soot blowing suppression unit 17, and then alarm signals are suppressed, so that the situation of false alarm is avoided.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims (3)

1. The automatic detection and alarm device for the pipeline leakage is characterized by comprising a digital audio analog quantity output detection unit (1), a multifunctional conduction pipe (2), an anti-blocking purging unit (3), an analog quantity optical fiber transmitting end (4), a switching value optical fiber transmitting end (5), a fault alarm unit (6), a power supply monitoring unit (7), an electromagnetic valve control unit (8), an analog quantity optical fiber receiving end (9), a switching value optical fiber receiving end (10), a server PCIe control clamping piece (11), a leakage alarm unit (12), a monitoring and recording unit (13), a display unit (14), a communication unit (15), a steam soot blowing inhibition unit (16) and a sound wave soot blowing inhibition unit (17); one end of the multifunctional conduction pipe (2) is connected with the surface of the boiler, the other end of the multifunctional conduction pipe is connected with the anti-blocking purging unit (3) through a valve, and the surface of the multifunctional conduction pipe (2) is provided with a digital audio frequency analog quantity output detection unit (1); the valve electric control switch of the anti-blocking purging unit (3) is connected with the switching value optical fiber transmitting end (5), the output end of the digital audio frequency analog output detection unit (1) is simultaneously connected with the analog value optical fiber transmitting end (4) and the input end of the switching value optical fiber transmitting end (5), and the input ends of the fault alarm unit (6), the power supply monitoring unit (7) and the electromagnetic valve control unit (8) are simultaneously connected with the output end of the switching value optical fiber transmitting end (5); the analog quantity optical fiber transmitting end (4) is connected with an analog quantity optical fiber receiving end (9) through an optical fiber, the switching quantity optical fiber transmitting end (5) is connected with a switching quantity optical fiber receiving end (10) through an optical fiber, and the input/output ends of the analog quantity optical fiber receiving end (9) and the switching quantity optical fiber receiving end (10) are simultaneously connected with a PCIe control clamping piece (11) of the server; the output end of the server PCIe control clamping piece (11) is respectively connected with the input ends of the leakage alarm unit (12), the monitoring and recording unit (13), the display unit (14) and the communication unit (15), and the input end of the server PCIe control clamping piece (11) is respectively connected with the output ends of the steam soot blowing inhibition unit (16) and the sound wave soot blowing inhibition unit (17).

2. The automatic detection alarm device for pipeline leakage according to claim 1, wherein the digital audio frequency analog quantity output detection unit (1) comprises a power supply detection module, a temperature detection module and a liquid crystal display module.

3. The automatic pipeline leakage detection and alarm device as claimed in claim 1, wherein the steam soot-blowing suppression unit (16) and the sound wave soot-blowing suppression unit (17) are connected with an overall control system of an external boiler pipeline and are responsible for receiving steam soot-blowing process signals and sound wave soot-blowing process signals.

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