CN201372916Y

CN201372916Y - Device for automatically monitoring large air compressor used in coal mine

Info

Publication number: CN201372916Y
Application number: CN200920101677U
Authority: CN
Inventors: 王学俊; 杜秀峰; 张长青; 周凤宝; 詹英杰; 袁巧良
Original assignee: KAILUAN (GROUP) CO Ltd JINGGEZHUANG MINING BRANCH
Current assignee: KAILUAN (GROUP) CO Ltd JINGGEZHUANG MINING BRANCH
Priority date: 2009-02-27
Filing date: 2009-02-27
Publication date: 2009-12-30
Anticipated expiration: 2019-02-27

Abstract

A device for automatically monitoring a large air compressor used in coal mine belongs to the technical field of automatic control equipment and is used for automatically monitoring the pressure, the temperature and the flux of the air compressor. An air inlet, an air outlet and a cooled water inlet of the air compressor are provided with an electromagnetic valve respectively; a primary cylinder, a secondary cylinder, an air pack, a lubricant and cooled water of the air compressor are provided with a pressure transmitter respectively; a water inlet, a water outlet, the secondary cylinder, the air pack and the lubricant of the air compressor are provided with a temperature sensor respectively; the pressure transmitter and the temperature sensor are connected with a programmable controller and a computer respectively, wherein the programmable controller is connected with the electromagnetic valve; and the computer is connected with an alarm and a display device. In the utility model, the air compressor can be monitored automatically, the starting and stopping of the air compressor can be controlled, alarmed and displayed, the comprehensively automatic monitoring and remote motoring by unit deployment on the large air compressor in the coal mine are realized, the safety and reliability of the equipment is improved when in use, the labor intensity of workers is reduced, and the working efficiency is improved.

Description

The large-scale air compressor automatic monitoring device in a kind of colliery

Technical field

The utility model relates to a kind of large-scale air compressor that the colliery is used and implements the device of monitoring automatically, belongs to the automatic control equipment technical field.

Background technique

In Coal Production, safety in production is the most important thing.In the measure that guarantees safety in production, the down-hole is adopted pneumatic equipment in a large number, because wind is the very safe energy, so the large-scale air compressor of mine is essential.At present, the air compressor in a lot of collieries also adopts manual control, the pneumatics machine room is for there being people's post, and motor starts cabinet control by 1 Y/ Δ, adopts manually-operable air compressor on the spot, trouble-signal such as pressure, temperature mostly is the self-control assembling, because it is all multifactor that the design of control loop, signal circuit is unreasonable etc., the day-to-day operation rate of fault is high, and it is many not only to consume manpower, efficient is low, also directly influence safety in production.In order to raise the efficiency, guarantee safety in production, part is still adopted the large-scale air compressor in manually operated colliery to control automatically and transforms is very necessary.

Summary of the invention

Technical problem to be solved in the utility model provides the large-scale air compressor automatic monitoring device in colliery of a kind of pressure that can monitor air compressor automatically, temperature, flow.

The technological scheme that solves the problems of the technologies described above is:

The large-scale air compressor automatic monitoring device in a kind of colliery, its improvements are, at the intake grill of air compressor, the mouth that leaks informaton, cooling water intake solenoid valve is installed respectively, first-stage cylinder, secondary cylinder, bellows chamber difference setting pressure transmitter at air compressor, at the lubricant oil and the cooling water difference setting pressure transmitter of air compressor, at water intake, water outlet, secondary cylinder, bellows chamber and the lubricant oil difference mounting temperature sensor of air compressor;

Described pressure transmitter is connected with programmable controller respectively with temperature transducer, and programmable controller is connected with computer, and programmable controller connects solenoid valve, and computer is connected with alarm and display unit.

The large-scale air compressor automatic monitoring device in above-mentioned colliery is installed flowmeter at air compressor exhaust outlet and each with wind family intake grill, and flowmeter is connected with computer by acquisition module respectively.

The large-scale air compressor automatic monitoring device in above-mentioned colliery, described pressure transmitter is connected with programmable controller by distributor.

The large-scale air compressor automatic monitoring device in above-mentioned colliery, described temperature transducer is connected with programmable controller by temperature transmitter.

The large-scale Automatic Control of Air Compressor device in this colliery can be monitored automatically to pressure, the temperature of air compressor, and programmable controller and computer are controlled the startup and the shutdown of air compressor according to monitor data, and can report to the police simultaneously and show; On each air-supply pipeline with the wind family vortex-shedding meter is installed, the measurable air quantity of using is strengthened realizing energy-saving and emission-reduction with the management of wind family with air quantity; The utility model has been realized colliery large-scale air compressor comprehensive automation monitoring and unit scheduling remote monitoring have been improved the safety reliability of equipment operation greatly, has reduced staff labor intensity, has improved working efficiency.

Description of drawings

Fig. 1 is a control gear connecting part block diagram of the present utility model;

Fig. 2 is air compressor circulating water part solenoid valve and pressure transmitter and temperature transducer connection diagram;

Fig. 3 is air compressor air-supply part solenoid valve and pressure transmitter, temperature transducer and flowmeter connection diagram.

Mark is as follows among the figure:

First-stage cylinder 1, secondary cylinder 2, bellows chamber 3, programmable controller 4, computer 5, alarm 6, display unit 7, acquisition module 8, wet pit 9, cooler 10, solenoid valve DF1, DF2, DF3, pressure transmitter YS1, YS2, YS3, YS4, YS5, temperature transducer WC1, WC2, WC3, WC4, WC5, flowmeter L1, L2～LN, distributor PD1, PD2, PD3, PD4, PD5, temperature transmitter WS1, WS2, WS3, WS4, WS5.

Embodiment

Fig. 1 is solenoid valve DF1 of the present utility model, DF2, DF3, pressure transmitter YS1, YS2, YS3, YS4, YS5, temperature transducer WC1, WC2, WC3, WC4, WC5, flowmeter L1, L2～LN, distributor PD1, PD2, PD3, PD4, PD5, temperature transmitter WS1, WS2, WS3, WS4, WS5 and the block diagram that is connected of programmable controller 4, computer 5, alarm 6, display unit 7, acquisition module 8.

The utility model at the intake grill of air compressor, is installed 1 solenoid valve DF1 (model RDM-100) in order to realize the computer monitoring of air compressor, replaces former manually operated valve; Leak informaton mouthful at air compressor 1 solenoid valve DF2 (model RDM-10) is installed, replace former manually operated valve; In air compressor cooling water intake side 1 solenoid valve DF3 (model RDM-20) is installed, replaces former manually operated valve; All solenoid valves are realized control automatically by programmable controller 4 (below be written as PLC).

Fig. 2 is the connection diagram of air compressor circulating water part solenoid valve and pressure transmitter and temperature transducer.

For implementing monitoring temperature, at water intake and water outlet difference mounting temperature sensor WC1, the WC2 (model PT100) of air compressor, monitoring cooling water temperature; Secondary cylinder 2 mounting temperature sensor WC3, lubricant oil mounting temperature sensor WC4 (model PT100), bellows chamber 3 mounting temperature sensor WC5 (model ZPK-231), each position temperature of monitoring air compressor.Above temperature signal converts 4～20mA current signal to by temperature transmitter WS1～WS5 and sends into PLC, imports background computer 5 supervisory systems then into, at On Screen Display.When temperature over-range, as the case may be, select to report to the police or shut down.

For implementing pressure monitor,, replace original pressure gauge with electric contact at air compressor first-stage cylinder 1, secondary cylinder 2 difference setting pressure transmitter YS1, YS2; Each bellows chamber is installed a pressure transmitter YS3, replaces original pressure gauge with electric contact; The lubricant oil of every air compressor and cooling water be setting pressure transmitter YS4, YS5 respectively; pressure transmitter converts pressure signal to the current signal of 4～20mA; send into PLC and computer supervisory control system by distributor PD1～PD5, be used for startup, shutdown, warning, the protection of air compressor and show each site pressure in real time.

For implementing air quantity monitoring metering, be convenient to monitor air compressor air output and each user and use air quantity, in time search, handle and leak out, run the wind accident, economize on wind, electricity consumption, use wind family intake grill at every air compressor exhaust outlet and each, XKWJ-ZII type vortex-shedding meter L1 is installed, L2～LN, each flow meter signal input ADAM-4017 acquisition module 8 is uploaded the backstage at last, dynamically show at computer display, and the cumulative measurement air quantity.

Other device

In one in the right side of electric motor starting cabinet installation and control cabinet; installing Siemens S7-200 type PLC (programmable controller) in the control cabinet; the automatic start-stop of control air compressor; while collecting treatment current of electric, voltage signal; temperature, pressure signal; and upload the backstage, realize the various protections of air compressor, warning, monitoring function.One of three phase watt-hour meter is installed simultaneously, is used to measure the electric weight use condition.

Be convenient to observation position at the pneumatics machine room 4 cameras are installed, import air compressor operational situation, fire-fighting, the intact situation of safety installations into backstage, show, make an inspection tour as a distant place and use at computer screen.For guaranteeing computer room safety, at 4 smog alarm sensors of machine room safety top, import the backstage into by PLC, realization smog transfinites and reports to the police automatically.

When all temps, pressure limit, computer display shows the corresponding failure signal, by Local Area Network, reminds dispatcher or relevant leader on duty with flicker with the audio alert dual mode, in time handling failure.

For electrical failure and excessive discharge temperature faults such as motor phase shortage overloads, not only report to the police, and shut down.

Be lower than lower limit for air compressor hydraulic pressure, oil pressure, bellows chamber pressure, secondary cylinder temperature are higher than the CLV ceiling limit value fault, not only report to the police, and shut down.

Claims

1. large-scale air compressor automatic monitoring device in colliery, it is characterized in that: solenoid valve is installed respectively at the intake grill of air compressor, the mouth that leaks informaton, cooling water intake, first-stage cylinder [1], secondary cylinder [2], bellows chamber [3] difference setting pressure transmitter at air compressor, at the lubricant oil and the cooling water difference setting pressure transmitter of air compressor, at water intake, water outlet, secondary cylinder [2], bellows chamber [3] and the lubricant oil difference mounting temperature sensor of air compressor;

Described pressure transmitter is connected with programmable controller [4] respectively with temperature transducer, programmable controller [4] is connected with computer [5], programmable controller [4] connects each solenoid valve, and computer [5] also is connected with alarm [6] and display unit [7].

2. the large-scale air compressor automatic monitoring device in colliery according to claim 1 is characterized in that: with wind family intake grill flowmeter is installed at air compressor exhaust outlet and each, flowmeter is connected with computer [5] by acquisition module [8] respectively.

3. the large-scale air compressor automatic monitoring device in colliery according to claim 2 is characterized in that: described pressure transmitter is connected with programmable controller [4] by distributor.

4. the large-scale air compressor automatic monitoring device in colliery according to claim 3 is characterized in that: described temperature transducer is connected with programmable controller [4] by temperature transmitter.