CN205620798U - DCS control system for air compressor machine - Google Patents
DCS control system for air compressor machine Download PDFInfo
- Publication number
- CN205620798U CN205620798U CN201620406524.5U CN201620406524U CN205620798U CN 205620798 U CN205620798 U CN 205620798U CN 201620406524 U CN201620406524 U CN 201620406524U CN 205620798 U CN205620798 U CN 205620798U
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- contact
- control
- dcs
- air compressor
- relay
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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- Control Of Positive-Displacement Air Blowers (AREA)
Abstract
The utility model provides a DCS control system for air compressor machine, including DCS signal output part, strong and weak points pulse conversion equipment and air compressor machine PLC controller, DCS signal output part includes first output, second output, enabling signal contact and stop signal contact, the enabling signal contact is the contact that resets open in usual, the stop signal contact is the normal close formula contact that resets, strong and weak points pulse conversion equipment is provided with control strong and weak points pulse conversion equipment and starts the control relay of closing, the control relay is for moving the type that closes electromagnetic relay, the control relay is including control circuit and auto -lock NO -contact, the control circuit of enabling signal contact, stop signal contact and control relay establishes ties between first output and second output, just the enabling signal contact is parallelly connected with the auto -lock NO -contact of control relay. The utility model discloses there is the problem that is difficult to to realize remote control, has the operation risk in it to aim at solving the current compressedair plant of power plant.
Description
Technical field
This utility model relates to a kind of DCS control system used for air compressor.
Background technology
Power plant often can use 6KV air compressor machine, owing to its PLC distant place start and stop belong to single-point input length
Pulse Width Control, and the DCS device of power plant can only send short pulse signal, it is impossible to air compressor machine is carried out a distant place and opens
Stopping controlling, the equipment that causes runs and controls inconvenience, and air compressor machine is the visual plant of power plant, if cannot realize
Remotely control, equipment fault once occurs, then needs engineering staff to rush towards device context and manipulate, have
The time delay of manipulation, adds the risk of unit operation, thus need during existing compressor operation Field Force with
Shi Jinhang condition monitoring, increases workload and manipulation difficulty.
Utility model content
Exist for existing power plant Air Compressor Equipment and be difficult to remotely control, exist the problem of operation risk,
This utility model provides a kind of DCS control system used for air compressor, real by arranging short long pulse conversion equipment
The remote control of existing air compressor machine start and stop, it is ensured that unit properly functioning, reduces unit operation risk.
The technical scheme that the above-mentioned technical problem of this utility model solution is used is as follows:
A kind of DCS control system used for air compressor is provided, including output short pulse signal DCS signal output part,
Short long pulse conversion equipment and the air compressor machine PLC of reception long pulse signal, described DCS signal exports
End includes the first outfan, the second outfan, enabling signal contact and stops signal contact, and described startup is believed
Number contact is reset contact open in usual, and described stopping signal contact is normally closed type reset contact；Described short long pulse
Red switch changing device is provided with and controls the control relay that the startup of short long pulse conversion equipment is closed, and described control continues
Electrical equipment is dynamic circuit connector type electromagnetic relay, and described control relay includes control loop and self-locking normal opened contact,
The control circuit in series of described enabling signal contact, stopping signal contact and control relay is in the first outfan
With second between outfan, and described enabling signal contact is in parallel with the self-locking normal opened contact controlling relay.
Further, described DCS signal output part also includes protection stop jumping contact, and described protection stop jumping connects
Point is normally closed type reset contact, described protection stop jumping contact and the control circuit in series with control relay.
Further, described short long pulse conversion equipment is powered by 110V DC source.
This utility model is provided with enabling signal contact at DCS signal output part and stops signal contact, simultaneously
Add single-point short pulse signal and be converted to the function of single-point long pulse signal, by enabling signal contact, stopping
Signal contact and the control circuit in series controlling relay, and described enabling signal contact with control relay
Self-locking normal opened contact is in parallel, and when enabling signal contact, the DCS signal output part section of sending pulse starts letter
Number, connect the control circuit controlling relay, stop signal contact and the operating circuit controlling relay is formed
Loop, thus control relay operating circuit and carry out operation, continuously send out long pulse signal to air compressor machine
PLC, compressor operation；Disconnect when stopping signal contact, then the operating circuit controlling relay disconnects,
Air compressor machine is out of service, it is achieved remote control；This device can directly accept the shutdown short pulse of remote control device simultaneously
Rush signal, make unit operation more convenient.And fault-signal is accessed loop, it is ensured that air compressor machine is in event
Can be the most out of service under barrier state.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of DCS control system used for air compressor in this utility model；
Fig. 2 is the access point schematic diagram of this utility model short-and-medium long pulse conversion equipment.
Detailed description of the invention
In order to make this utility model be solved the technical problem that, technical scheme and beneficial effect clearer,
Below in conjunction with drawings and Examples, this utility model is further elaborated.Should be appreciated that herein
Described specific embodiment, only in order to explain this utility model, is not used to limit this utility model.
See shown in accompanying drawing 1, the utility model discloses a kind of DCS control system used for air compressor, including defeated
Go out the DCS signal output part of short pulse signal, short long pulse conversion equipment and receive the pneumatics of long pulse signal
Machine PLC, described DCS signal output part includes first outfan the 1, second outfan 2, starts letter
Number contact 3 and stop signal contact 4, described enabling signal contact 3 is reset contact open in usual, described stopping
Signal contact 4 is normally closed type reset contact；Described short long pulse conversion equipment is provided with the short long pulse red switch of control
Changing device starts the control relay closed, and described control relay is dynamic circuit connector type electromagnetic relay, described control
Relay processed includes control loop 6 and self-locking normal opened contact 7, described enabling signal contact 3, stopping signal
The control loop 6 of contact 4 and control relay is series between the first outfan 1 and the second outfan 2,
And described enabling signal contact 3 is in parallel with the self-locking normal opened contact 7 controlling relay.
It is provided with enabling signal contact 3 at DCS signal output part and stops signal contact 4, adding list simultaneously
Point short pulse signal is converted to the function of single-point long pulse signal, by enabling signal contact 3, stops signal contact
4 connect with the control loop 6 controlling relay, and described enabling signal contact 3 and the self-locking controlling relay
Normal opened contact is in parallel, when enabling signal contact 3 is connected, and the DCS signal output part section of sending pulse enabling signal,
Connect the control circuit 6 controlling relay, stop signal contact 4 and the self-locking normal opened contact 7 controlling relay
Form loop, thus control relay operating circuit and carry out operation, continuously send out long pulse signal to empty
Press PLC, compressor operation；Disconnect when stopping signal contact, then control the work electricity of relay
Road disconnects, and air compressor machine is out of service, it is achieved remote control.
Described DCS signal output part also includes protection stop jumping contact 5, and described protection stop jumping contact 5 is normally closed
Formula reset contact, described protection stop jumping contact 5 with control relay control loop 6 connect, this device
Can directly accept the shutdown short pulse signal of remote control device, make unit operation more convenient.And fault is believed
Number access loop, it is ensured that air compressor machine nonserviceable lower can horse back the most out of service.
Described short long pulse conversion equipment is powered by 110V DC source.
As in figure 2 it is shown, be the access point schematic diagram of short long pulse conversion equipment, include enabling signal interface,
Stop signaling interface, external fault input interface, output interface and 110V power input interface.
After 8 6KV air compressor machines of riverhead power plant are by using this device, equipment operational excellence, do not occur remote
Control unhandy event, it is ensured that unit properly functioning.And by the arrangement achieves distant place short pulse
Punching starts air compressor machine, short pulse punching in a distant place stops air compressor machine and the function of fault stopping air compressor machine.
The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model,
All any amendment, equivalent and improvement etc. made within spirit of the present utility model and principle, all should
Within being included in protection domain of the present utility model.
Claims (3)
1. a DCS control system used for air compressor, it is characterized in that, including the output DCS signal output part of short pulse signal, short long pulse conversion equipment and the air compressor machine PLC receiving long pulse signal, described DCS signal output part includes the first outfan, the second outfan, enabling signal contact and stops signal contact, described enabling signal contact is reset contact open in usual, and described stopping signal contact is normally closed type reset contact；Described short long pulse conversion equipment is provided with and controls the control relay that the startup of short long pulse conversion equipment is closed, described control relay is dynamic circuit connector type electromagnetic relay, described control relay includes control loop and self-locking normal opened contact, the control circuit in series of described enabling signal contact, stopping signal contact and control relay is between the first outfan and the second outfan, and described enabling signal contact is in parallel with the self-locking normal opened contact controlling relay.
One the most according to claim 1 DCS used for air compressor control system; it is characterized in that; described DCS signal output part also includes protection stop jumping contact, and described protection stop jumping contact is normally closed type reset contact, described protection stop jumping contact and the control circuit in series with control relay.
One the most according to claim 1 DCS used for air compressor control system, it is characterised in that described short long pulse conversion equipment is powered by 110V DC source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620406524.5U CN205620798U (en) | 2016-05-06 | 2016-05-06 | DCS control system for air compressor machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620406524.5U CN205620798U (en) | 2016-05-06 | 2016-05-06 | DCS control system for air compressor machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205620798U true CN205620798U (en) | 2016-10-05 |
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ID=57025307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620406524.5U Active CN205620798U (en) | 2016-05-06 | 2016-05-06 | DCS control system for air compressor machine |
Country Status (1)
| Country | Link |
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| CN (1) | CN205620798U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113641154A (en) * | 2021-07-20 | 2021-11-12 | 浙江浙能嘉华发电有限公司 | Start-stop circuit for air compressor DCS (distributed control System) and DCS control method |
-
2016
- 2016-05-06 CN CN201620406524.5U patent/CN205620798U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113641154A (en) * | 2021-07-20 | 2021-11-12 | 浙江浙能嘉华发电有限公司 | Start-stop circuit for air compressor DCS (distributed control System) and DCS control method |
| CN113641154B (en) * | 2021-07-20 | 2023-07-25 | 浙江浙能嘉华发电有限公司 | Start-stop circuit for DCS system of air compressor and DCS control method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |