CN205392718U - Coal pulverizer switch control system - Google Patents
Coal pulverizer switch control system Download PDFInfo
- Publication number
- CN205392718U CN205392718U CN201620243671.5U CN201620243671U CN205392718U CN 205392718 U CN205392718 U CN 205392718U CN 201620243671 U CN201620243671 U CN 201620243671U CN 205392718 U CN205392718 U CN 205392718U
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- CN
- China
- Prior art keywords
- control device
- f1hn
- motor protection
- protection measure
- circuit breaker
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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.)
- Withdrawn - After Issue
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Abstract
The utility model provides a coal pulverizer switch control system, including combined floodgate control circuit and separating brake control circuit, combined floodgate control circuit and separating brake control circuit's both ends are equallyd divide and are do not passed through direct current breaker 1ZK and be connected with the KM power end. The utility model discloses under the circumstances of guaranteeing plentiful way, through skip partial components and parts with the shorting stub, real reason is found out to the mode that can locally verify, and the production in the twinkling of an eye of switch energy release contact open draws the arc guide to send the emergence of control circuit short circuit phenomenon after especially can avoiding closing a floodgate at every turn. Through reinforcing insulating properties's way, the auxiliary contact is changed in processing, and the clearance that increases contact and other control components and parts changes dielectric strength, reduces and draws arc intensity. The reliability service of the equipment that has ensured. Also extend simultaneously the control section of other switches, improve similar phenomenon, ensure the reliability service of switch, avoid damaging the emergence of perhaps bigger unit trouble because of similar phenomenon leads to equipment.
Description
Technical field
This utility model relates to coal pulverizer and runs control field, is specifically related to a kind of coal pulverizer on-off control system.
Background technology
My No. 1 stove A mill 6kV switch of company occurs that control plate and relay plate burn out after there is combined floodgate repeatedly, or occurs that power supply controls little sky and opens tripping operation, if making equipment occur equipment fault when properly functioning, then controlling loop cannot be operating normally, protection device tripping.And without any exception before equipment operation, the same with normal loop, it is impossible to whether judgment device exists potential faults.This type of fault is very unlikely to search reason, and operation all can cause economic loss every time.After closing a floodgate, relevant device just damages or occurs that controlling power supply sky opens tripping operation, very easily causes equipment tripping, failure propagation every time.Have a strong impact on the reliability service of equipment.Expansion of possibly even breaking down causes unit flame-out or the phenomenon of chaser occurs.After verification, discovery true cause is energy storage contact S1 insulation ag(e)ing, switchs the moment generation arcing releasing energy contact disconnection and cause controlling loop short circuit phenomenon generation after each combined floodgate.
Utility model content
For solving above-mentioned technical problem, this utility model provides a kind of coal pulverizer on-off control system.
This utility model is achieved by the following technical programs.
A kind of coal pulverizer on-off control system that this utility model provides, is controlled loop, described shutting-brake control loop and separating brake including shutting-brake control loop and separating brake and controls the two ends in loop and be connected with ± KM power end by dc circuit breaker 1ZK respectively.
Permutator QC-1 and one end of permutator QC-2 in described shutting-brake control loop are connected respectively through dc circuit breaker 1ZK and+KM power end, and the permutator QC-1 other end is connected by 21 ends of press button HA2 and operating position switch S3-1 and motor protection measure and control device F1HN-2001；It is parallel to press button HA2 and the two ends of operating position switch S3-1 after press button HA1 and testing position switch S2-1 series connection；It is connected with 20 ends of motor protection measure and control device F1HN-2001 by wire between press button HA2 and operating position switch S3-1；Between press button HA2 and operating position switch S3-1,19 ends also by DCS combined floodgate contact DCS-1 and motor protection measure and control device F1HN-2001 are connected；The other end of permutator QC-2 is connected with 19 ends of motor protection measure and control device F1HN-2001.
22 ends of motor protection measure and control device F1HN-2001,23 ends are connected to-KM power end respectively through dc circuit breaker 1ZK and connect, and are also in series with energy storage contact S1-1,6kV switch normally closed auxiliary contact DL-1 and closing relay HQ on the connection wire between 22 ends and dc circuit breaker 1ZK.
Described separating brake controls one end of the press button TA in loop and is connected between permutator QC-1 and press button HA2, and the other end is connected with 27 ends of motor protection measure and control device F1HN-2001；27 ends of motor protection measure and control device F1HN-2001 are connected with 19 ends, 29 ends and 30 ends respectively also by wire; and the connection wire that 27 between end and 19 ends is additionally provided with DCS trips contact DCS-2; 30 ends are connected by emergency button SA, dc circuit breaker 1ZK and+KM power end on the spot, and 31 ends are connected by cyclization pressing plate 1XB, dc circuit breaker 1ZK and+KM power end；26 ends of motor protection measure and control device F1HN-2001 switch normally opened auxiliary contact DL-2, separating brake relay TQ and dc circuit breaker 1ZK and-KM power end by 6kV and are connected.
Also include instruction loop; combined floodgate display lamp HR and one end of separating brake display lamp HG in instruction loop are connected respectively through dc circuit breaker 1ZK and+KM power end; the other end is corresponding with 57 ends of motor protection measure and control device F1HN-2001,56 ends respectively to be connected, and 58 ends of described motor protection measure and control device F1HN-2001 are connected by dc circuit breaker 1ZK and-KM power end.
32 ends of described motor protection measure and control device F1HN-2001 are connected by dc circuit breaker 1ZK and+KM power end, and 33～38 ends switch with 6kV respectively and pass through dc circuit breaker 1ZK and-KM power end after normally opened auxiliary contact DL-3,6kV switch the corresponding connection of normally closed auxiliary contact DL-4, energy storage contact S1-2, operating position switch S3-2, testing position switch S2-2 and permutator QC-3 and be connected.
39～43 ends of described motor protection measure and control device F1HN-2001 are standby port.
44 ends of described motor protection measure and control device F1HN-2001 are connected by motor protection measure and control device F2HN-2001, dc circuit breaker 1ZK and-KM power end.
The beneficial effects of the utility model are in that: when ensureing not short-circuit, by skipping part components and parts with shorting stub, the mode that can locally verify finds out true cause, it is particularly possible to avoids the moment that energy contact disconnection released by switch after every time closing a floodgate to produce arcing and causes that controlling loop short circuit phenomenon occurs.By the way of reinforced insulation performance, auxiliary contact is changed in processing, increases contact and changes dielectric strength with other gaps controlling components and parts, reduces arcing intensity.Ensure the reliability service of equipment.Also extend the control part of other switches simultaneously, improve similar phenomenon, ensure the reliability service of switch, it is to avoid cause the generation of the unit fault of device damage or bigger because of similar phenomenon.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
The technical solution of the utility model be described further below, but described in the scope claimed is not limited to.
A kind of coal pulverizer on-off control system as shown in Figure 1, is controlled loop, described shutting-brake control loop and separating brake including shutting-brake control loop and separating brake and controls the two ends in loop and be connected with ± KM power end by dc circuit breaker 1ZK respectively.
Permutator QC-1 and one end of permutator QC-2 in described shutting-brake control loop are connected respectively through dc circuit breaker 1ZK and+KM power end, and the permutator QC-1 other end is connected by 21 ends of press button HA2 and operating position switch S3-1 and motor protection measure and control device F1HN-2001；It is parallel to press button HA2 and the two ends of operating position switch S3-1 after press button HA1 and testing position switch S2-1 series connection；It is connected with 20 ends of motor protection measure and control device F1HN-2001 by wire between press button HA2 and operating position switch S3-1；Between press button HA2 and operating position switch S3-1,19 ends also by DCS combined floodgate contact DCS-1 and motor protection measure and control device F1HN-2001 are connected；The other end of permutator QC-2 is connected with 19 ends of motor protection measure and control device F1HN-2001.
22 ends of motor protection measure and control device F1HN-2001,23 ends are connected to-KM power end respectively through dc circuit breaker 1ZK and connect, and are also in series with energy storage contact S1-1,6kV switch normally closed auxiliary contact DL-1 and closing relay HQ on the connection wire between 22 ends and dc circuit breaker 1ZK.
Described separating brake controls one end of the press button TA in loop and is connected between permutator QC-1 and press button HA2, and the other end is connected with 27 ends of motor protection measure and control device F1HN-2001；27 ends of motor protection measure and control device F1HN-2001 are connected with 19 ends, 29 ends and 30 ends respectively also by wire; and the connection wire that 27 between end and 19 ends is additionally provided with DCS trips contact DCS-2; 30 ends are connected by emergency button SA, dc circuit breaker 1ZK and+KM power end on the spot, and 31 ends are connected by cyclization pressing plate 1XB, dc circuit breaker 1ZK and+KM power end；26 ends of motor protection measure and control device F1HN-2001 switch normally opened auxiliary contact DL-2, separating brake relay TQ and dc circuit breaker 1ZK and-KM power end by 6kV and are connected.When ensureing not short-circuit, by skipping part components and parts with shorting stub, it is possible to locally the mode of verification finds out true cause, it is particularly possible to avoid the moment that energy contact disconnection released by switch after closing a floodgate to produce arcing and cause that controlling loop short circuit phenomenon occurs every time.
Also include instruction loop; combined floodgate display lamp HR and one end of separating brake display lamp HG in instruction loop are connected respectively through dc circuit breaker 1ZK and+KM power end; the other end is corresponding with 57 ends of motor protection measure and control device F1HN-2001,56 ends respectively to be connected, and 58 ends of described motor protection measure and control device F1HN-2001 are connected by dc circuit breaker 1ZK and-KM power end.Facilitate operator to check the duty of coal pulverizer at any time, and carry out the control action of correspondence.
32 ends of described motor protection measure and control device F1HN-2001 are connected by dc circuit breaker 1ZK and+KM power end, and 33～38 ends switch with 6kV respectively and pass through dc circuit breaker 1ZK and-KM power end after normally opened auxiliary contact DL-3,6kV switch the corresponding connection of normally closed auxiliary contact DL-4, energy storage contact S1-2, operating position switch S3-2, testing position switch S2-2 and permutator QC-3 and be connected.
39～43 ends of described motor protection measure and control device F1HN-2001 are standby port.
44 ends of described motor protection measure and control device F1HN-2001 are connected by motor protection measure and control device F2HN-2001, dc circuit breaker 1ZK and-KM power end.
The phenomenon that binding analysis finds, this utility model way by reinforced insulation performance, auxiliary contact is changed in processing, increases contact and changes dielectric strength with other gaps controlling components and parts, reduces arcing intensity.Ensure the reliability service of equipment.Also extend the control part of other switches simultaneously, improve similar phenomenon, ensure the reliability service of switch, it is to avoid cause the generation of the unit fault of device damage or bigger because of similar phenomenon.By the failture evacuation to equipment, equipment is carried out improving processing by we, has ensured the reliability service of equipment, it is to avoid cause the generation of the unit fault of device damage or bigger because of similar phenomenon.
Claims (5)
1. a coal pulverizer on-off control system, is controlled loop, described shutting-brake control loop and separating brake including shutting-brake control loop and separating brake and controls the two ends in loop and be connected with ± KM power end by dc circuit breaker 1ZK respectively, it is characterised in that:
Permutator QC-1 and one end of permutator QC-2 in described shutting-brake control loop are connected respectively through dc circuit breaker 1ZK and+KM power end, and the permutator QC-1 other end is connected by 21 ends of press button HA2 and operating position switch S3-1 and motor protection measure and control device F1HN-2001；It is parallel to press button HA2 and the two ends of operating position switch S3-1 after press button HA1 and testing position switch S2-1 series connection；It is connected with 20 ends of motor protection measure and control device F1HN-2001 by wire between press button HA2 and operating position switch S3-1；Between press button HA2 and operating position switch S3-1,19 ends also by DCS combined floodgate contact DCS-1 and motor protection measure and control device F1HN-2001 are connected；The other end of permutator QC-2 is connected with 19 ends of motor protection measure and control device F1HN-2001；
22 ends of motor protection measure and control device F1HN-2001,23 ends are connected to-KM power end respectively through dc circuit breaker 1ZK and connect, and are also in series with energy storage contact S1-1,6kV switch normally closed auxiliary contact DL-1 and closing relay HQ on the connection wire between 22 ends and dc circuit breaker 1ZK；
Described separating brake controls one end of the press button TA in loop and is connected between permutator QC-1 and press button HA2, and the other end is connected with 27 ends of motor protection measure and control device F1HN-2001；27 ends of motor protection measure and control device F1HN-2001 are connected with 19 ends, 29 ends and 30 ends respectively also by wire; and the connection wire that 27 between end and 19 ends is additionally provided with DCS trips contact DCS-2; 30 ends are connected by emergency button SA, dc circuit breaker 1ZK and+KM power end on the spot, and 31 ends are connected by cyclization pressing plate 1XB, dc circuit breaker 1ZK and+KM power end；
26 ends of motor protection measure and control device F1HN-2001 switch normally opened auxiliary contact DL-2, separating brake relay TQ and dc circuit breaker 1ZK and-KM power end by 6kV and are connected.
2. coal pulverizer on-off control system as claimed in claim 1; it is characterized in that: also include instruction loop; combined floodgate display lamp HR and one end of separating brake display lamp HG in instruction loop are connected respectively through dc circuit breaker 1ZK and+KM power end; the other end is corresponding with 57 ends of motor protection measure and control device F1HN-2001,56 ends respectively to be connected, and 58 ends of described motor protection measure and control device F1HN-2001 are connected by dc circuit breaker 1ZK and-KM power end.
3. coal pulverizer on-off control system as claimed in claim 1 or 2; it is characterized in that: 32 ends of described motor protection measure and control device F1HN-2001 are connected by dc circuit breaker 1ZK and+KM power end, 33～38 ends switch with 6kV respectively and pass through dc circuit breaker 1ZK and-KM power end after normally opened auxiliary contact DL-3,6kV switch the corresponding connection of normally closed auxiliary contact DL-4, energy storage contact S1-2, operating position switch S3-2, testing position switch S2-2 and permutator QC-3 and be connected.
4. coal pulverizer on-off control system as claimed in claim 3, it is characterised in that: 39～43 ends of described motor protection measure and control device F1HN-2001 are standby port.
5. coal pulverizer on-off control system as claimed in claim 3, it is characterised in that: 44 ends of described motor protection measure and control device F1HN-2001 are connected by motor protection measure and control device F2HN-2001, dc circuit breaker 1ZK and-KM power end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620243671.5U CN205392718U (en) | 2016-03-28 | 2016-03-28 | Coal pulverizer switch control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620243671.5U CN205392718U (en) | 2016-03-28 | 2016-03-28 | Coal pulverizer switch control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205392718U true CN205392718U (en) | 2016-07-27 |
Family
ID=56419032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620243671.5U Withdrawn - After Issue CN205392718U (en) | 2016-03-28 | 2016-03-28 | Coal pulverizer switch control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205392718U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105618247A (en) * | 2016-03-28 | 2016-06-01 | 大唐贵州野马寨发电有限公司 | Switching control circuit of coal mill |
-
2016
- 2016-03-28 CN CN201620243671.5U patent/CN205392718U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105618247A (en) * | 2016-03-28 | 2016-06-01 | 大唐贵州野马寨发电有限公司 | Switching control circuit of coal mill |
| CN105618247B (en) * | 2016-03-28 | 2017-12-22 | 大唐贵州野马寨发电有限公司 | A kind of coal pulverizer ON-OFF control circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160727 Effective date of abandoning: 20171222 |
|
| AV01 | Patent right actively abandoned |