CN202970919U - Generator set monitoring system based on PLC - Google Patents
Generator set monitoring system based on PLC Download PDFInfo
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- CN202970919U CN202970919U CN 201220517929 CN201220517929U CN202970919U CN 202970919 U CN202970919 U CN 202970919U CN 201220517929 CN201220517929 CN 201220517929 CN 201220517929 U CN201220517929 U CN 201220517929U CN 202970919 U CN202970919 U CN 202970919U
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- Control Of Eletrric Generators (AREA)
- Testing And Monitoring For Control Systems (AREA)
Abstract
The utility model discloses a generator set monitoring system based on a PLC (Programmable Logic Controller), which comprises a flow signal sensor, a vibration signal sensor, a rotating speed signal sensor, a temperature signal sensor, a pressure signal sensor, a signal conditioner, the PLC, an industrial personal computer, a motor control relay, an emergency oil supply on-off valve, a flow control valve and a hand-operated/manual switcher. The generator set monitoring system can monitor multiple signals, thereby avoiding safety accidents due to an engine during the power generation process of an internal combustion engines. The generator set monitoring system has he advantages that the structure is simple, the service life is long, and the integration level is higher.
Description
Technical field
The utility model relates to a kind of supervisory system, relates in particular to a kind of generator set supervisory system based on PLC.
Background technique
Generating equipment of internal-combustion engine is the power generating equipment take internal-combustion engine as power, since eighties of last century begins the eighties, the internal combustion engine generator group just begins to be widely used in China, development through more than 20 years, along with scientific and technological progress, the rise of new high-tech industry and the raising of living standards of the people, the application of generator set is constantly widened.Development along with sensor technology, computer technology and the network communications technology, various single-chip microcomputers, programmable controller and PC technology are widely used in control field, make computer measurement and control become the development trend of internal combustion engine generator group, thus the characteristics and the development trend that make increasing substantially of long-distance remote control and unmanned and automaticity become internal-combustion engine.Yet the obstacle of generator from causing at various factors makes space shuttle can not get safe guarantee in flight course.
Summary of the invention
The purpose of this utility model provides a kind of generator set supervisory system based on PLC with regard to being in order to address the above problem.
The utility model is achieved through the following technical solutions above-mentioned purpose:
the utility model comprises the flux signal sensor, vibration signal sensor, rotary speed signal sensor, the temperature signal sensor, the pressure signal sensor, signal conditioner, PLC, process control machine, the Electric Machine Control relay, emergent fuel feeding on-off valve, flow control valve and manual/auto switch, the signal output part of described flux signal sensor, the signal output part of described vibration signal sensor, the signal output part of described rotary speed signal sensor, the signal output part of described temperature signal sensor be connected the pressure signal sensor signal output part respectively with the corresponding connection of testing signal input end of described signal conditioner, the signal output part of described signal conditioner is connected with the testing signal input end of described PLC, the control signal output terminal of described process control machine is connected with the control signal input end of described PLC, the signal input part of described Electric Machine Control relay, the control signal input end of described emergent fuel feeding on-off valve, the control signal input end of described flow control valve be connected manual/auto switch the control signal input end respectively with the corresponding connection of control signal output terminal of described PLC.
The beneficial effects of the utility model are:
The utility model can be to the monitoring of multinomial signal, thereby has guaranteed that internal-combustion engine avoids the security incident that causes because of generator in power generation process.The utlity model has simple in structure, long service life and the higher advantage of level of integration.
Description of drawings
Fig. 1 is the structural representation of the generator set supervisory system based on PLC described in the utility model.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing:
as shown in Figure 1: the utility model comprises the flux signal sensor, vibration signal sensor, rotary speed signal sensor, the temperature signal sensor, the pressure signal sensor, signal conditioner, PLC, process control machine, the Electric Machine Control relay, emergent fuel feeding on-off valve, flow control valve and manual/auto switch, the signal output part of described flux signal sensor, the signal output part of described vibration signal sensor, the signal output part of described rotary speed signal sensor, the signal output part of described temperature signal sensor be connected the pressure signal sensor signal output part respectively with the corresponding connection of testing signal input end of described signal conditioner, the signal output part of described signal conditioner is connected with the testing signal input end of described PLC, the control signal output terminal of described process control machine is connected with the control signal input end of described PLC, the signal input part of described Electric Machine Control relay, the control signal input end of described emergent fuel feeding on-off valve, the control signal input end of described flow control valve be connected manual/auto switch the control signal input end respectively with the corresponding connection of control signal output terminal of described PLC.
The utility model observing and controlling to as if-individual threephase alternator group take internal-combustion engine as power.Its measurement and control signal is: pressure, temperature, rotating speed, vibration, fuel flow send each signal with pressure signal sensor, temperature signal sensor, rotary speed signal sensor, vibration signal sensor and flux signal sensor respectively.The working procedure of the working procedure of this generator set and this generator set of TT﹠C requirement is at first to start the oil depot oil feed pump, director valve checks charge oil pressure, suitable rear motor control relay work starter-generator, the power internal-combustion engine that is driven generator by actuating motor rotates.Speed probe sends tach signal, and before arriving the appointment rotating speed, the aperture of fuel flow modulating valve is the starting aperture.Reach when specifying rotating speed, system connects emergent fuel feeding on-off valve, internal-combustion engine ignition automatically.Then, controlled by the control system of internal-combustion engine self, promote to specified working speed.During to the rotating speed of appointment, the control system of internal-combustion engine self is sent instruction, cuts away (stopping) actuating motor.Until nominal operation rotating speed.Under rated condition, manual/auto switch work.After this, control system guarantees that the rotating speed of internal-combustion engine is constant.Before shutdown, must first disconnect the Electric Machine Control relay, then close fuel control valve (during orderly closedown, first close flow control valve, then close emergent fuel feeding on-off valve, during emergent the shutdown, the closing sequence of two valves is opposite).In omnidistance working procedure, detect each temperature, pressure and tachometer value, guarantee that each measured value must not surpass thresholding.Otherwise should send acoustooptic alarm and indicate is which pressure of which temperature or which rotating speed transfinite.And automatic emergency is shut down.
Claims (1)
1. the generator set supervisory system based on PLC, is characterized in that: comprise the flux signal sensor, vibration signal sensor, rotary speed signal sensor, the temperature signal sensor, the pressure signal sensor, signal conditioner, PLC, process control machine, the Electric Machine Control relay, emergent fuel feeding on-off valve, flow control valve and manual/auto switch, the signal output part of described flux signal sensor, the signal output part of described vibration signal sensor, the signal output part of described rotary speed signal sensor, the signal output part of described temperature signal sensor be connected the pressure signal sensor signal output part respectively with the corresponding connection of testing signal input end of described signal conditioner, the signal output part of described signal conditioner is connected with the testing signal input end of described PLC, the control signal output terminal of described process control machine is connected with the control signal input end of described PLC, the signal input part of described Electric Machine Control relay, the control signal input end of described emergent fuel feeding on-off valve, the control signal input end of described flow control valve be connected manual/auto switch the control signal input end respectively with the corresponding connection of control signal output terminal of described PLC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220517929 CN202970919U (en) | 2012-10-11 | 2012-10-11 | Generator set monitoring system based on PLC |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220517929 CN202970919U (en) | 2012-10-11 | 2012-10-11 | Generator set monitoring system based on PLC |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202970919U true CN202970919U (en) | 2013-06-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220517929 Expired - Fee Related CN202970919U (en) | 2012-10-11 | 2012-10-11 | Generator set monitoring system based on PLC |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202970919U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103726942A (en) * | 2012-10-11 | 2014-04-16 | 成都赛腾自动化工程有限公司 | Generator set monitoring system based on PLC |
| CN103885379A (en) * | 2014-02-20 | 2014-06-25 | 上海工程技术大学 | Rotating speed type multisensory signal collecting device |
-
2012
- 2012-10-11 CN CN 201220517929 patent/CN202970919U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103726942A (en) * | 2012-10-11 | 2014-04-16 | 成都赛腾自动化工程有限公司 | Generator set monitoring system based on PLC |
| CN103885379A (en) * | 2014-02-20 | 2014-06-25 | 上海工程技术大学 | Rotating speed type multisensory signal collecting device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130605 Termination date: 20131011 |