CN108212493A - A kind of coal pulverizer gear wheel fueling injection equipment and its control method - Google Patents
A kind of coal pulverizer gear wheel fueling injection equipment and its control method Download PDFInfo
- Publication number
- CN108212493A CN108212493A CN201810205115.2A CN201810205115A CN108212493A CN 108212493 A CN108212493 A CN 108212493A CN 201810205115 A CN201810205115 A CN 201810205115A CN 108212493 A CN108212493 A CN 108212493A
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- CN
- China
- Prior art keywords
- oil spout
- coal pulverizer
- circuit
- gear wheel
- control module
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C25/00—Control arrangements specially adapted for crushing or disintegrating
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Loading And Unloading Of Fuel Tanks Or Ships (AREA)
Abstract
A kind of coal pulverizer gear wheel fueling injection equipment and its control method belong to coal pulverizer technical equipment field.The fueling injection equipment includes purge circuit, oil spout circuit, oil spout output mechanism, air compressing mechanism and control module, it is characterised in that：Further include display screen, the output terminal of the oil spout circuit and purge circuit connects respectively with oil spout output mechanism, and the input terminal of oil spout circuit and purge circuit is connect respectively with air compressing mechanism, and malfunction monitoring mechanism is set on oil spout circuit；Blowing mechanism difference link control module in oil injection mechanism and purge circuit in oil spout circuit, the input terminal of the output terminal link control module of malfunction monitoring mechanism, the input terminal link control module of display screen.With eliminate secondary instrument failure caused by system exception, solves the disadvantage that secondary instrument man-machine communication it is poor, can not Chinese display, by teletransmission equipment state realization failure far control display, ensure the advantageous effect monitored in real time of equipment running status.
Description
Technical field
A kind of coal pulverizer gear wheel fueling injection equipment and its control method belong to coal pulverizer technical equipment field.
Background technology
The coal pulverizer gear wheel fueling injection equipment to go with each other all the time needs to complete the control of automatic oil spout and its purging.Existing skill
By PLC secondary instruments on the spot in art, by controlling solenoid fuel injection valve etc., equipment realizes automatic oil spout, and pass through counter shape on the spot
State feedback realizes breakdown judge.This mode is not easy to adjust there are secondary instrument high failure rate, parameter, can not teletransmission show etc. and to lack
Point, when device fails, supervising disk personnel on the spot needs to reach scene, and on-site-inspection error code carrys out failure judgement reason,
It is easy to cause coal pulverizer gear wheel oil spout exception and then influences equipment safety；And currently used has the function of that PLC's is secondary
Gauge outfit also there is can not Chinese display, parameter testing is complicated, man-machine communication is difficult big the shortcomings that, while higher price buys spare unit
Period is long；The logic control period and time of oil spout and purger can not be adjusted in time, need to be changed after checking failure,
It is likely to result in the problem of equipment is more serious.In view of the deficiencies of the prior art, it is badly in need of a kind of solution secondary instrument man-machine communication at present
Difference, can not Chinese display the shortcomings that, eliminate system exception caused by secondary instrument failure, the logic control of the convenient oil spout purging of adjustment in time
Period and time, timely remote viewing device failure facilitate maintenance of equipment, ensure equipment running status and the technology monitored in real time
Scheme.
Invention content
The technical problem to be solved by the present invention is to：Overcome the deficiencies of the prior art and provide a kind of solution man-machine friendship of secondary instrument
Stream is poor, can not Chinese display the shortcomings that, eliminate system exception caused by secondary instrument failure, the logic control that the convenient oil spout of adjustment in time purges
Period and time processed, timely remote viewing device failure facilitate maintenance of equipment, ensure equipment running status and the mill monitored in real time
Coal machine gear wheel fueling injection equipment and its control method.
The technical solution adopted by the present invention to solve the technical problems is：The coal pulverizer gear wheel fueling injection equipment, including blowing
Sweep circuit, oil spout circuit, oil spout output mechanism, air compressing mechanism and control module, it is characterised in that：Further include display screen,
The oil spout circuit and the output terminal of purge circuit connect respectively with oil spout output mechanism, oil spout circuit and purge circuit it is defeated
Enter end to connect with air compressing mechanism respectively, malfunction monitoring mechanism is set on oil spout circuit；Oil injection mechanism in oil spout circuit and
Blowing mechanism difference link control module in purge circuit, the input of the output terminal link control module of malfunction monitoring mechanism
End, the input terminal link control module of display screen.
Preferably, the oil injection mechanism includes solenoid fuel injection valve and oil sprayer, and oil sprayer is along oil spout loop works direction
It is arranged on the front side of solenoid fuel injection valve.
Preferably, the blowing mechanism includes purge solenoid valve.
Preferably, filtering pressure reducing valve is set respectively in the oil spout circuit and purge circuit.
Preferably, the oil spout output mechanism includes distributor and spray gun assembly, output terminal and the spray gun group of distributor
The input terminal connection of part.
Preferably, the distributor is Double-wire distributor.
Preferably, the malfunction monitoring mechanism includes pressure switch, and the contact of pressure switch is connected with control module.
Preferably, the malfunction monitoring mechanism includes the contact-making switch of reversal valve and counter, reversal valve and counter
Connection, the output terminal of counter are connect with control module.
A kind of control method based on the coal pulverizer gear wheel fueling injection equipment, it is characterised in that：The control mould
Block includes Coal pulverizer monitoring modular, fault monitor module and display module；
The step of described control method, is as follows：
Step 1：Coal pulverizer monitoring modular monitors coal pulverizer operation or stop signal in real time, if monitoring coal pulverizer operation letter
Number, 2 are entered step, if monitoring coal pulverizer stop signal, enters step 4, if fault monitor module receives malfunction monitoring machine
During the abnormal signal of structure, 5 are entered step；
Step 2：If Coal pulverizer monitoring modular does not monitor coal pulverizer stop signal, 3 are entered step；
Step 3：Purge solenoid valve is first opened, opens solenoid fuel injection valve afterwards；
Step 4：Solenoid fuel injection valve is first closed, closes purge solenoid valve afterwards；
Step 5：Display module control display screen shows fueling injection equipment fault cues.
Preferably, oil spout start-stop button is also set up on the fueling injection equipment, the control module further includes oil spout and opens
Stop monitoring modular, the contact of oil spout start-stop button is connect with oil spout start and stop monitoring modular, oil spout is set to open in the step 2
Stop whether monitoring module monitors oil spout start-stop button contact is closed：If monitoring oil spout start-stop button contact closure, into described
Step 3；If monitoring, oil spout start-stop button contact disconnects, into the step 4.
Preferably, if oil spout start and stop monitoring modular does not monitor the oil spout start-stop button contact in the step 2
It disconnects, into the step 3.
Compared with prior art, advantageous effect possessed by the present invention is：
1st, a kind of coal pulverizer gear wheel fueling injection equipment and its control method, have solve secondary instrument man-machine communication it is poor, can not Chinese display
The shortcomings that, system exception caused by secondary instrument failure is eliminated, it is convenient to adjust the logic control period and time that oil spout purges in time,
Timely remote viewing device failure, facilitates maintenance of equipment, ensures equipment running status and the advantageous effect monitored in real time.
2nd, secondary instrument is removed in the present invention, display screen is set, control module is real-time on a display screen by situation about monitoring
It has been shown that, facilitates the failure of operations staff's remote viewing device, eliminates secondary list-directed hidden danger, save spare unit expense, and
And it ensure that man-machine communication's is unimpeded by DCS system.
3rd, setting malfunction monitoring mechanism, malfunction monitoring mechanism timely feedback the failure in oil spout circuit to control in the present invention
Molding block, will equipment on the spot operating status teletransmission to operator station, be reflected into display screen, checked for operations staff, ensured
Operations staff understands equipment running status in time, and timely discovering device is abnormal, ensures equipment dependability.
4th, the operation of blowing mechanism and oil injection mechanism is controlled in the present invention by control module, when unlatching first starts purging machine
Structure dredges pipeline, opens oil injection mechanism afterwards, and when closing first closes oil injection mechanism, closes blowing mechanism afterwards, oil spout is avoided to export machine
Structure long-pending oil, the operation for coal pulverizer provide facility.
5th, the present invention can strengthen man-machine communication, rapid reception and failure judgement signal, while facilitate parameter optimization, can root
The period and time of oil injection mechanism and blowing mechanism operation are adjusted according to needs of production.
Description of the drawings
Fig. 1 is the structure diagram inside coal pulverizer in the present invention.
Fig. 2 is the control principle drawing that fueling injection equipment is opened in the present invention.
Fig. 3 is the control principle drawing that fueling injection equipment is closed in the present invention.
Fig. 4 is fueling injection equipment malfunction monitoring control principle drawing in the present invention.
Wherein：1st, air compressor 2, filtering pressure reducing valve 3, purge solenoid valve 4, spray gun assembly 5, Double-wire distributor
6th, reversal valve 7, air driven pump 8, pressure switch 9, control module 10, oil sprayer 11, solenoid fuel injection valve.
Specific embodiment
Fig. 1 ~ 4 are highly preferred embodiment of the present invention, and 1 ~ 4 the present invention will be further described below in conjunction with the accompanying drawings.
As shown in Figure 1, the present embodiment include purge circuit, oil spout circuit, oil spout output mechanism, air compressing mechanism and
Control module, further includes display screen, and the output terminal of the oil spout circuit and purge circuit connects respectively with oil spout output mechanism,
The input terminal of oil spout circuit and purge circuit is connect respectively with air compressing mechanism, and malfunction monitoring mechanism is set on oil spout circuit；
Blowing mechanism difference link control module in oil injection mechanism and purge circuit in oil spout circuit, the output of malfunction monitoring mechanism
The input terminal of link control module, the input terminal link control module of display screen are held, the control module in the present embodiment is DCS controls
Molding block.
Oil injection mechanism includes solenoid fuel injection valve and oil sprayer in the present embodiment, and oil sprayer and solenoid fuel injection valve are along oil spout circuit
Operative orientation is set gradually.Blowing mechanism includes purge solenoid valve, control module control solenoid fuel injection valve and purge solenoid valve
It is turned on and off.Air compressing mechanism is air compressor, and air driven pump is also set up between solenoid fuel injection valve and reversal valve,
Filtering pressure reducing valve in the present embodiment in oil spout circuit and purge circuit is set respectively, controls oil spout circuit and purge circuit
Stable gas pressure.
Oil spout output mechanism includes distributor and spray gun assembly in the present embodiment, the output terminal of distributor and spray gun assembly
Input terminal connects, and wherein distributor is Double-wire distributor, and Double-wire distributor can realize the alternating fuel feeding of two oil feed lines simultaneously
Realize the adjusting of oil mass.
Malfunction monitoring mechanism includes pressure switch in the present embodiment, and the air pressure that pressure switch is used to monitor in oil spout circuit is
It is no normal.In addition, fault detection mechanism may also include reversal valve and counter, it is to overturn that reversal valve passes through in oil spout, together
For hour counter while reversal valve commutates, contact-making switch action, counter generates 0 or 1 overturning, and exports to DCS and control
Molding block, if during oil spout, reversal valve cannot be operating normally, i.e., the count signal overturning that counter generates is not corresponding with oil spout
When, feedback fault message to control module.
Based on above-mentioned coal pulverizer gear wheel fueling injection equipment, the step of control method, is as follows：The control module includes
Coal pulverizer monitoring modular, fault monitor module and display module；
Step 1：Coal pulverizer monitoring modular monitors coal pulverizer operation or stop signal in real time, if monitoring coal pulverizer operation letter
Number, 2 are entered step, if monitoring coal pulverizer stop signal, enters step 4, if fault monitor module receives malfunction monitoring machine
During the abnormal signal of structure, 5 are entered step；
Step 2：If Coal pulverizer monitoring modular does not monitor coal pulverizer stop signal, 3 are entered step；
Step 3：Purge solenoid valve is first opened, opens solenoid fuel injection valve afterwards；
During coal pulverizer normal operation, purge solenoid valve first opens dredging purge circuit, opens and carries out after solenoid fuel injection valve
Oil spout；
Step 4：Solenoid fuel injection valve is first closed, closes purge solenoid valve afterwards；
After solenoid fuel injection valve opens a period of time, solenoid fuel injection valve is closed, purge solenoid valve continues to purge, and oil spout is avoided to export machine
Structure generates long-pending oil；
Step 5：Display module control display screen shows fueling injection equipment fault cues.
Oil spout start-stop button is also set up in the present embodiment on fueling injection equipment, the control module further includes oil spout start and stop prison
Module is surveyed, the contact of oil spout start-stop button is connect with oil spout start and stop monitoring modular, and oil spout start and stop prison is set in the step 2
Survey whether module monitors oil spout start-stop button contact is closed：If monitoring oil spout start-stop button contact closure, into the step
Rapid 3；If monitoring, oil spout start-stop button contact disconnects, into the step 4.
If oil spout start and stop monitoring modular does not monitor that the oil spout start-stop button contact is broken in step 2 in the present embodiment
It opens, into the step 3.
As shown in Fig. 2, in the present embodiment, the output pulse signal when oil spout start-stop button contact closure；Or it monitors to grind
The run signal of coal machine and without oil spout stop instruction, in the present embodiment, purge cycles are 45min, therefore are monitoring no oil spout discontinuance
It is delayed after order and 45min and sends out 3s pulses；Or coal pulverizer run signal is monitored without coal pulverizer stop signal, it is delayed at this time
2s sends out 5s pulses.When any one in case above occurs, successively start purge solenoid valve and solenoid fuel injection valve, oil spout electromagnetism
The working time of valve is less than purge solenoid valve, and the specific working time can be adjusted according to actual conditions, be sprayed in the present embodiment
Solenoid work 15s, purge solenoid valve work 27s.
As shown in figure 3, setting oil spout start-stop button contact disconnects, long signal, 3s pulses are exported；Or it receives coal pulverizer and stops
Solenoid fuel injection valve and purge solenoid valve are successively closed during the 3s pulses of stop signal.
As shown in figure 4, the pressure switch in fueling injection equipment is monitored when compressed air pressure is low or during oil spout, mill
Coal machine counting device exception or reversal valve are failure to actuate, and display module makes to show corresponding coal pulverizer spray in display screen at this time
Oily plant failure checks simultaneously timely processing for operations staff.
The present embodiment utilizes GE Xinhua 400eDCS platforms, uses for reference basic demand of the coal pulverizer producer to gear wheel oil spout, knot
The characteristics of closing equipment on the spot, eliminates secondary list-directed hidden danger, saves spare unit expense, and protect by DCS system first
The unimpeded of man-machine communication is demonstrate,proved；Secondly by DCS system by the operating status teletransmission of equipment on the spot to operator station；In addition oil spout
It can not be adjusted in time with the logic control period of purger and time, need to be changed after checking failure, be likely to result in
The problem of equipment is more serious.Solve the disadvantage that secondary instrument man-machine communication it is poor, can not Chinese display, eliminate secondary instrument failure caused by system
Abnormal, the logic control period and time of the convenient oil spout purging of adjustment in time, timely remote viewing device failure facilitates equipment to tie up
It repaiies, ensure equipment running status and monitors in real time.
The above described is only a preferred embodiment of the present invention, being not that the invention has other forms of limitations, appoint
What those skilled in the art changed or be modified as possibly also with the technology contents of the disclosure above equivalent variations etc.
Imitate embodiment.But it is every without departing from technical solution of the present invention content, technical spirit according to the present invention is to above example institute
Any simple modification, equivalent variations and the remodeling made still fall within the protection domain of technical solution of the present invention.
Claims (10)
1. a kind of coal pulverizer gear wheel fueling injection equipment, including purge circuit, oil spout circuit, oil spout output mechanism, air compressor
Structure and control module, it is characterised in that：Further include display screen, the output terminal of the oil spout circuit and purge circuit respectively with spray
The input terminal of oily output mechanism connection, oil spout circuit and purge circuit is connect respectively with air compressing mechanism, and oil spout is set on circuit
Put malfunction monitoring mechanism；Blowing mechanism difference link control module in oil injection mechanism and purge circuit in oil spout circuit, therefore
Hinder the input terminal of the output terminal link control module of mechanism for monitoring, the input terminal link control module of display screen.
2. a kind of coal pulverizer gear wheel fueling injection equipment according to claim 1, it is characterised in that：The oil injection mechanism packet
Solenoid fuel injection valve and oil sprayer are included, oil sprayer is arranged on the front side of solenoid fuel injection valve along oil spout loop works direction.
3. a kind of coal pulverizer gear wheel fueling injection equipment according to claim 1, it is characterised in that：The blowing mechanism packet
Include purge solenoid valve.
4. a kind of coal pulverizer gear wheel fueling injection equipment according to claim 1, it is characterised in that：The oil spout circuit and
Filtering pressure reducing valve is set respectively in purge circuit.
5. a kind of coal pulverizer gear wheel fueling injection equipment according to claim 1, it is characterised in that：The oil spout output machine
Structure includes distributor and spray gun assembly, and the output terminal of distributor and the input terminal of spray gun assembly connect.
6. a kind of coal pulverizer gear wheel fueling injection equipment according to claim 1, it is characterised in that：The malfunction monitoring machine
Structure includes pressure switch, and the contact of pressure switch is connected with control module.
7. a kind of coal pulverizer gear wheel fueling injection equipment according to claim 1, it is characterised in that：The malfunction monitoring machine
Structure includes reversal valve and counter, the contact-making switch connection of reversal valve and counter, and output terminal and the control module of counter connect
It connects.
8. a kind of control method based on the coal pulverizer gear wheel fueling injection equipment, it is characterised in that：The control module
Including Coal pulverizer monitoring modular, fault monitor module and display module；
The step of described control method, is as follows：
Step 1：Coal pulverizer monitoring modular monitors coal pulverizer operation or stop signal in real time, if monitoring coal pulverizer operation letter
Number, 2 are entered step, if monitoring coal pulverizer stop signal, enters step 4, if fault monitor module receives malfunction monitoring machine
During the abnormal signal of structure, 5 are entered step；
Step 2：If Coal pulverizer monitoring modular does not monitor coal pulverizer stop signal, 3 are entered step；
Step 3：Purge solenoid valve is first opened, opens solenoid fuel injection valve afterwards；
Step 4：Solenoid fuel injection valve is first closed, closes purge solenoid valve afterwards；
Step 5：Display module control display screen shows fueling injection equipment fault cues.
9. a kind of control method of coal pulverizer gear wheel fueling injection equipment according to claim 8, it is characterised in that：Described
Oil spout start-stop button is also set up on fueling injection equipment, the control module further includes oil spout start and stop monitoring modular, and oil spout start and stop are pressed
The contact of button is connect with oil spout start and stop monitoring modular, oil spout start and stop monitoring module monitors oil spout is set to open in the step 2
Stop whether push-button contact is closed：If oil spout start-stop button contact closure is monitored, into the step 3；If monitor oil spout
Start-stop button contact disconnects, into the step 4.
10. a kind of control method of coal pulverizer gear wheel fueling injection equipment according to claim 9, it is characterised in that：It is described
If step 2 in oil spout start and stop monitoring modular do not monitor that the oil spout start-stop button contact disconnects, into the step
3。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810205115.2A CN108212493A (en) | 2018-03-13 | 2018-03-13 | A kind of coal pulverizer gear wheel fueling injection equipment and its control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810205115.2A CN108212493A (en) | 2018-03-13 | 2018-03-13 | A kind of coal pulverizer gear wheel fueling injection equipment and its control method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108212493A true CN108212493A (en) | 2018-06-29 |
Family
ID=62659379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810205115.2A Pending CN108212493A (en) | 2018-03-13 | 2018-03-13 | A kind of coal pulverizer gear wheel fueling injection equipment and its control method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108212493A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2254133Y (en) * | 1996-01-10 | 1997-05-14 | 侯东明 | Automatic large gear cleaning lubricating device |
| EP2201268A1 (en) * | 2007-10-25 | 2010-06-30 | ZF Friedrichshafen AG | Oil supply device of a manual transmission |
| CN202719118U (en) * | 2012-08-29 | 2013-02-06 | 大唐湘潭发电有限责任公司 | Oil injection automatic control device of large gear of ball grinding machine based on logogram (LOGO) controller |
| CN103062380A (en) * | 2011-09-22 | 2013-04-24 | 美闻达传动设备有限公司 | Method and arrangement for controlling the lubrication of a gear system |
-
2018
- 2018-03-13 CN CN201810205115.2A patent/CN108212493A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2254133Y (en) * | 1996-01-10 | 1997-05-14 | 侯东明 | Automatic large gear cleaning lubricating device |
| EP2201268A1 (en) * | 2007-10-25 | 2010-06-30 | ZF Friedrichshafen AG | Oil supply device of a manual transmission |
| CN103062380A (en) * | 2011-09-22 | 2013-04-24 | 美闻达传动设备有限公司 | Method and arrangement for controlling the lubrication of a gear system |
| CN202719118U (en) * | 2012-08-29 | 2013-02-06 | 大唐湘潭发电有限责任公司 | Oil injection automatic control device of large gear of ball grinding machine based on logogram (LOGO) controller |
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Application publication date: 20180629 |