CN204572411U - Water power plant low pressure air compressor combined control system - Google Patents
Water power plant low pressure air compressor combined control system Download PDFInfo
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- CN204572411U CN204572411U CN201520129854.XU CN201520129854U CN204572411U CN 204572411 U CN204572411 U CN 204572411U CN 201520129854 U CN201520129854 U CN 201520129854U CN 204572411 U CN204572411 U CN 204572411U
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- pressure air
- air compressor
- pressure
- combined control
- low pressure
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E70/00—Other energy conversion or management systems reducing GHG emissions
- Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin
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- Control Of Positive-Displacement Pumps (AREA)
- Control Of Positive-Displacement Air Blowers (AREA)
Abstract
The utility model water power plant low pressure air compressor combined control system, comprise and jointly control cabinet, described jointly control in cabinet be provided with Combined Control Unit, and the working voltage air compressor be connected with described control gear respectively, a high-pressure air machine for subsequent use, described high-pressure air machine is all connected with a gas holder; Described gas holder is provided with the pressure switch controlling gas holder internal pressure, two pressure transmitters monitoring pressure gas tank internal pressure, described pressure switch is connected with PLC communication, described pressure transmitter one is connected with PLC communication, and another pressure transmitter described is connected with public motor communication; Described Combined Control Unit is connected with full factory supervisory system by power transmission road, analog output module and communication module in hard contact switch amount.
Description
Technical field
The utility model relates to a kind of water power plant low pressure air compressor combined control system.
Background technique
Water power plant low pressure air compressor combined control system mainly controls the object such as air compressor, gas tank air pressure of high pressure air system, protect, monitors and measures; Two air compressors air compressor is primary, and an air compressor is for subsequent use, and can be for subsequent use each other; Gas tank is furnished with pressure switch or pressure transmitter, to monitor air pressure, the start-stop of automatically controlled water pump simultaneously, the pressure ensureing high pressure air system within the specific limits, meets the technological requirement of production gas.
At present, control based on traditional conventional relays, because easy break-down, the not factor such as easy care, complex structure cannot take turns the technology of the work/standby mode of water-change pump or the weak signal testing of unity logic process, the needs that hydropower station at present " few people on duty, unmanned " develops can not be met, simultaneously can not realize Large Volume Data with full factory supervisory system to exchange, can not the operation conditions of real-time display system and query history service data.
Model utility content
For the problems referred to above, the utility model provides a kind of and realizes intelligent control and carry out the water power plant low pressure air compressor combined control system of problem of exchanges data.
For reaching above-mentioned model utility object, the utility model water power plant low pressure air compressor combined control system, comprise and jointly control cabinet, described jointly control in cabinet be provided with Combined Control Unit, and the working voltage air compressor be connected with described control gear respectively, a high-pressure air machine for subsequent use, high-pressure air machine described in two all overhauls gas tank with one and is connected, and the high-pressure air machine described in two is all braked gas tank with one and is connected;
Wherein said Combined Control Unit comprises PLC, and the operation display panel be connected with described PLC respectively, warning device, high-pressure air unit starting loop, high-pressure air unit allocation loop, controls power transmission road and relay control device in power loop, power transfer device, switching power unit, On-off signal unit, switch amount output unit, analog input unit, analog output unit, communication module and passive null contact switch amount;
Each described gas tank is provided with the pressure switch controlling gas tank internal pressure, described pressure switch is connected with PLC communication, described maintenance gas tank is provided with two transmitters, be arranged on that wherein pressure transmitter on described maintenance gas tank is public with power station, switchyard motor is connected, another pressure transmitter is connected with PLC; Described braking gas tank is provided with a transmitter, is arranged on that wherein pressure transmitter on described braking gas tank is public with power station, switchyard motor is connected;
Described Combined Control Unit is connected with full factory supervisory system by power transmission road, analog output module and communication module in hard contact switch amount.
Further, described braking gas tank, maintenance gas tank are all connected with water turbine maintenance device of air by air duct, and described air duct is provided with cooling driers, and described cooling driers connects speed regulator hydraulic pressure installation; Described low pressure air compressor is provided with the protective gear of discharging air pressure.
Particularly, described high-pressure air unit starting loop number and high-pressure air machine number match; Described high-pressure air machine by inlet wire lightning protection device, high-pressure air owner circuit breaker, high-pressure air machine contactor, soft initiator and thermal protection for motors relay, main circuit power voltage indicating instrument, switching over device, in sequential seriesly to form.
Especially, described high-pressure air owner circuit breaker has thermal and magnetic dropout short-circuit protection.
Further, temperature and humidity controller, lighting set and warning device is also comprised; Described lighting set and jointly controlling in cabinet described in being arranged on.
Further, described operation display panel is liquid crystal touch screen; Described display floater comprises alarm window, button, throw over switch.
Particularly, described warning device at least comprises warning circuit and tutorial light, and wherein said tutorial light comprises water pump operation status indicator lamp, fault of water pump tutorial light, controls power failure lamp, controls power failure lamp, PLC fault indicating lamp.
Further, jointly control the height of cabinet boundary dimension described in, wide, be thickly respectively 2260mm, 800m, 600mm; The power line of described control cabinet and control signal line all press inlet wire and lower outlet is arranged; Combined control cabinet internal upper part is equipped with PLC 1 and overlaps, and operation display panel is equipped with at middle part, and lead-in circuit breaker, power transfer device, switching power unit, control relay and temperature control apparatus are equipped with in bottom.
Further, described control power loop adopts two ac power supply, and described operation display panel is provided with switch dual power knob.
Particularly, described communication module is MODBUS protocol module or PROFIBUS protocol module.
Compared with prior art, the beneficial effects of the utility model are; The control & monitor that the utility model adopts pressure switch, pressure transmitter carries out gas tank, two kinds of signals participate in controlling, mutually verifying simultaneously, ensure that the reliability of control; When braking with gas-reservoir gas tank or maintenance gas-reservoir gas tank Pressure Drop to low pressure limit time, work air compressor starts, and when pressure gos up to upper pressure limit, work air compressor is shut down.When reservoir pressure is down to lower prescribing a time limit, air compressor for subsequent use starts and sends signal, and when pressure gos up to upper pressure limit, air compressor for subsequent use is shut down.When pressure increase is supreme in limited time upper, send overpressure guard sign.The operating mode setting of air compressor can be completed on air compressor combined control cabinet, trouble signal involution, control panel have compressor operation state signal and trouble signal display.Thus achieve the intelligent control of High Pressure Air Compressor system; High performance PLC can gather the pressure of gas tank automatically, and reports to the police to the fault occurred thus ensure that fault is processed in time, the coherent signal of collection is passed to plant area's supervisory system simultaneously.
Accompanying drawing explanation
Fig. 1 is the utility model water power plant low pressure air compressor combined control system automatic control flow chart figure.
Embodiment
Below in conjunction with Figure of description, the utility model is further described.
Water power plant low pressure gas system is mainly used in for phase modulation setting-out, unit braking and maintenance gas.Full factory low pressure gas system is generally provided with two air compressors; Low pressure air compressor combined control system comprises two low pressure air compressors and controls.
Low pressure air compressor combined control system mainly controls objects such as the air pressure of the air compressor of low pressure gas system, maintenance gas tank and braking gas tank, protect, monitors and measures; Two air compressors air compressor is primary, and an air compressor is for subsequent use, and can be for subsequent use each other; Gas tank is furnished with pressure switch or pressure transmitter, to monitor air pressure, automatically control the start-stop of low pressure air compressor, the pressure ensureing low pressure gas system within the specific limits, meets the technological requirement of production gas simultaneously.
As shown in Figure 1, water power plant low pressure air compressor combined control system automatic control flow chart figure.
The utility model water power plant low pressure air compressor combined control system, comprise and jointly control cabinet, described jointly control in cabinet be provided with Combined Control Unit 1, and a working voltage air compressor 21, the high-pressure air machine 22 for subsequent use be connected with described control gear respectively, high-pressure air machine described in two all overhauls high-pressure air machine that gas tank is connected described in 31, two and all brakes gas tank with one and be connected 32 with one;
Wherein said Combined Control Unit comprises PLC, and the operation display panel be connected with described PLC respectively, warning device, high-pressure air unit starting loop, high-pressure air unit allocation loop, controls power transmission road and relay control device in power loop, power transfer device, switching power unit, On-off signal unit, switch amount output unit, analog input unit, analog output unit, communication module and passive null contact switch amount;
Each described gas tank is provided with the pressure switch controlling gas tank internal pressure, described pressure switch is connected with PLC communication, described maintenance gas tank is provided with two transmitters 33, be arranged on that wherein pressure transmitter on described maintenance gas tank is public with power station, switchyard motor is connected, another pressure transmitter is connected with PLC; Described braking gas tank is provided with a transmitter 34, is arranged on that wherein pressure transmitter on described braking gas tank is public with power station, switchyard motor is connected;
Described Combined Control Unit is connected with full factory supervisory system by power transmission road, analog output module and communication module in hard contact switch amount.
Further, described braking gas tank, maintenance gas tank are all connected with water turbine maintenance device of air 5 by air duct, and described air duct is provided with cooling driers, and described cooling driers 4 connects speed regulator hydraulic pressure installation; Described low pressure air compressor is provided with the protective gear of discharging air pressure.
Particularly, described high-pressure air unit starting loop number and high-pressure air machine number match; Described high-pressure air machine by inlet wire lightning protection device, high-pressure air owner circuit breaker, high-pressure air machine contactor, soft initiator and thermal protection for motors relay, main circuit power voltage indicating instrument, switching over device, in sequential seriesly to form.
Especially, described high-pressure air owner circuit breaker has thermal and magnetic dropout short-circuit protection.
Further, temperature and humidity controller, lighting set and warning device is also comprised; Described lighting set and jointly controlling in cabinet described in being arranged on.
Further, described operation display panel is liquid crystal touch screen; Described display floater comprises alarm window, button, throw over switch.
Particularly, described warning device at least comprises warning circuit and tutorial light, and wherein said tutorial light comprises water pump operation status indicator lamp, fault of water pump tutorial light, controls power failure lamp, controls power failure lamp, PLC fault indicating lamp.
Further, jointly control the height of cabinet boundary dimension described in, wide, be thickly respectively 2260mm, 800m, 600mm; The power line of described control cabinet and control signal line all press inlet wire and lower outlet is arranged; Combined control cabinet internal upper part is equipped with PLC 1 and overlaps, and operation display panel is equipped with at middle part, and lead-in circuit breaker, power transfer device, switching power unit, control relay and temperature control apparatus are equipped with in bottom.
Further, described control power loop adopts two ac power supply, and described operation display panel is provided with switch dual power knob.
1, control principle
(1) the unit control cabinet of every platform low pressure air compressor is complete by air compressor producer, unit control cabinet is established " distant place/now " selector switch.When the diverter switch on Single Cabinet is chosen as " distant place ", the automatic control command in a distant place can be accepted.Native system configuration " joint control/excision " selector switch, when selecting " joint control ", the work of two air compressors, one for subsequent use.Jointly controlling of low pressure air compressor is completed by this contract, and joint control system determines air compressor primary, for subsequent use automatically, and Non-follow control is completed by unit control cabinet.
(2) low pressure air compressor jointly controls the two ac power supply of control power acquisition cashier's office in a shop, and the working power of two air compressors is taken from two telegram in reply sources respectively, and control box can meet Dual-power automatic switching requirement.
(3) low pressure air compressor itself is provided with the protective gear etc. of discharging air pressure, and unit protective function is completed by unit control cabinet.Every platform air compressor unit control cabinet exports air compressor working state, air compressor fault, power supply disappearance of signal etc. to jointly controlling case, jointly controlling cabinet except tackling the trouble signal that accepts carries out, except control strategy conversion, also trouble signal to be forwarded power station computer monitoring system.
(4) low pressure gas system is furnished with three pressure transmitters, exports DC4 ~ 20mA signal.Wherein overhaul gas tank and install 1, braking gas tank installs 1, monitors for system pressure, directly by power station public/switchyard LCU gathers, another is loaded on to overhaul on gas tank and controls for equipment.The seller realizes the automatic start-stop controlling functions of low pressure gas system according to the signal of pressure transmitter.Control panel should be able to show the power supply voltage signal of air compressor simultaneously.
(5) under automatically combining control mode, air compressor controls by automatic control flow chart, and active and standby air compressor adopts rotation to start system, and namely air compressor often starts once active and standby air compressor auto switching once.System can carry out stored count to the working time of each air compressor.
(6) automatic control flow chart (pressure signal takes from pressure transmitter and pressure switch)
1) when braking with gas-reservoir gas tank or maintenance gas-reservoir gas tank Pressure Drop to low pressure limit time, work air compressor starts, and when pressure gos up to upper pressure limit, work air compressor is shut down.
2) when reservoir pressure is down to lower prescribing a time limit, air compressor for subsequent use starts and sends signal, and when pressure gos up to upper pressure limit, air compressor for subsequent use is shut down.
3) when pressure increase is supreme in limited time upper, overpressure guard sign is sent.
(8) the operating mode setting of air compressor can be completed on air compressor combined control cabinet, trouble signal involution, control panel have compressor operation state signal and trouble signal display.
2, other function of unit
(1) system failure automatic diagnosis
The each equipment state of low pressure air compressor combined control system real-time monitoring system and signal, and carry out breakdown judge, process and reporting fault signal in time.
(2) protection and warning function
Software protection function: PLC software has fault self-diagnosis function, can judge, by PLC and alarm in time to faults such as PLC module fault, analog measurement measure loop broken strings.
3, system layout
(1) low pressure gas system automation element, electrical equipment and I/O measuring point
Low pressure gas system automation element and electrical equipment table (user provides for oneself)
The list of low pressure air compressor combined control system PLC I/O measuring point
(2) composition of control system and configuration
Low pressure air compressor control system establishes one side PLC combined control cabinet, the height of the boundary dimension of control panel, wide, is thickly respectively 2260mm, 800m, 600mm; The power line of screen cabinet and control signal line all press inlet wire and lower outlet is arranged; Combined control cabinet internal upper part is equipped with PLC 1 and overlaps, operation display panel (signaling lamp, alarm window, button, throw over switch) is equipped with at middle part, and lead-in circuit breaker, power transfer device, switching power unit, control relay and temperature control apparatus etc. are equipped with in bottom.
Capital equipment configuration detail list
| Sequence number | Device name | Unit | Quantity |
| 1 | Programmable controller | Cover | 1 |
| 2 | Air-break switch | Only | 3 |
| 3 | Button | Only | 1 |
| 4 | Selector switch | Only | 2 |
| 5 | Tutorial light | Only | 9 |
| 6 | Relay | Individual | 14 |
| 7 | Isolating transformer | Individual | 2 |
| 8 | DC electrical source | Individual | 2 |
| 9 | Isolating diode | Individual | 4 |
| 10 | Touch screen (optional) | Cover | 1 |
4, communication function
(1) important signal passive null contact is caused the I/O device of LCU by this control system.
(2) this control system is by (MODBUS agreement) interface communication mode and LCU communication.
(3) PLC has the interface carrying out with portable computer with debugging being connected.
On send the passive switch amount signal of motor LCU to mainly contain:
Hand/automated location
Gas tank air pressure is too high
Gas tank air pressure is too low
Stand by pump starts
Air compressor outlet temperature is too high
Air compressor fault
PLC fault
Soft initiator fault
Power failure etc.
Communication modes send the information of LCU:
Diverter switch location status
Low pressure air compressor electric motor starting
Low pressure air compressor electrical fault
System pressure abnormity
Pressure continuous variable
PLC fault
Control power failure
Air compressor time of movement, each record comprises title, state and markers
Other signals sent on needing.
The utility model be should be understood that; above-described embodiment; further detailed description has been carried out to the purpose of this utility model, technological scheme and beneficial effect; these are only embodiment of the present utility model; and be not used in restriction the utility model; every within spiritual principles of the present utility model; done any amendment, equivalent replacement, improvement etc.; all should be included within protection domain of the present utility model, the protection domain that protection domain of the present utility model should define with claim is as the criterion.
Claims (10)
1. a water power plant low pressure air compressor combined control system, it is characterized in that: comprise and jointly control cabinet, described jointly control in cabinet be provided with Combined Control Unit, and the working voltage air compressor be connected with described control gear respectively, a high-pressure air machine for subsequent use, high-pressure air machine described in two all overhauls gas tank with one and is connected, and the high-pressure air machine described in two is all braked gas tank with one and is connected;
Wherein said Combined Control Unit comprises PLC, and the operation display panel be connected with described PLC respectively, warning device, high-pressure air unit starting loop, high-pressure air unit allocation loop, controls power transmission road and relay control device in power loop, power transfer device, switching power unit, On-off signal unit, switch amount output unit, analog input unit, analog output unit, communication module and passive null contact switch amount;
Each described gas tank is provided with the pressure switch controlling gas tank internal pressure, described pressure switch is connected with PLC communication, described maintenance gas tank is provided with two transmitters, be arranged on that wherein pressure transmitter on described maintenance gas tank is public with power station, switchyard motor is connected, another pressure transmitter is connected with PLC; Described braking gas tank is provided with a transmitter, is arranged on that wherein pressure transmitter on described braking gas tank is public with power station, switchyard motor is connected;
Described Combined Control Unit is connected with full factory supervisory system by power transmission road, analog output module and communication module in hard contact switch amount.
2. water power plant according to claim 1 low pressure air compressor combined control system, it is characterized in that: described braking gas tank, maintenance gas tank are all connected with water turbine maintenance device of air by air duct, described air duct is provided with cooling driers, and described cooling driers connects speed regulator hydraulic pressure installation; Described low pressure air compressor is provided with the protective gear of discharging air pressure.
3. water power plant according to claim 1 low pressure air compressor combined control system, is characterized in that: described high-pressure air unit starting loop number and high-pressure air machine number match; Described high-pressure air machine by inlet wire lightning protection device, high-pressure air owner circuit breaker, high-pressure air machine contactor, soft initiator and thermal protection for motors relay, main circuit power voltage indicating instrument, switching over device, in sequential seriesly to form.
4. water power plant according to claim 3 low pressure air compressor combined control system, is characterized in that: described high-pressure air owner circuit breaker has thermal and magnetic dropout short-circuit protection.
5. water power plant according to claim 1 low pressure air compressor combined control system, is characterized in that: also comprise temperature and humidity controller, lighting set and warning device; Described lighting set and jointly controlling in cabinet described in being arranged on.
6. water power plant according to claim 1 low pressure air compressor combined control system, is characterized in that: described operation display panel is liquid crystal touch screen; Described display floater comprises alarm window, button, throw over switch.
7. water power plant according to claim 5 low pressure air compressor combined control system, it is characterized in that: described warning device at least comprises warning circuit and tutorial light, wherein said tutorial light comprises water pump operation status indicator lamp, fault of water pump tutorial light, controls power failure lamp, controls power failure lamp, PLC fault indicating lamp.
8. water power plant according to claim 1 low pressure air compressor combined control system, is characterized in that: described in jointly control cabinet boundary dimension height, wide, be thickly respectively 2260mm, 800m, 600mm; The power line of described control cabinet and control signal line all press inlet wire and lower outlet is arranged; Combined control cabinet internal upper part is equipped with PLC 1 and overlaps, and operation display panel is equipped with at middle part, and lead-in circuit breaker, power transfer device, switching power unit, control relay and temperature control apparatus are equipped with in bottom.
9. water power plant according to claim 1 low pressure air compressor combined control system, is characterized in that: described control power loop adopts two ac power supply, and described operation display panel is provided with switch dual power knob.
10. water power plant according to claim 1 low pressure air compressor combined control system, is characterized in that: described communication module is MODBUS protocol module or PROFIBUS protocol module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520129854.XU CN204572411U (en) | 2015-03-07 | 2015-03-07 | Water power plant low pressure air compressor combined control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520129854.XU CN204572411U (en) | 2015-03-07 | 2015-03-07 | Water power plant low pressure air compressor combined control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204572411U true CN204572411U (en) | 2015-08-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520129854.XU Active CN204572411U (en) | 2015-03-07 | 2015-03-07 | Water power plant low pressure air compressor combined control system |
Country Status (1)
| Country | Link |
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| CN (1) | CN204572411U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113803238A (en) * | 2021-09-27 | 2021-12-17 | 中水三立数据技术股份有限公司 | Control system and method for hot standby air compressor unit capable of achieving power-on self-starting |
-
2015
- 2015-03-07 CN CN201520129854.XU patent/CN204572411U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113803238A (en) * | 2021-09-27 | 2021-12-17 | 中水三立数据技术股份有限公司 | Control system and method for hot standby air compressor unit capable of achieving power-on self-starting |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |