CN112555138A - Mutual backup interlocking program optimization method for thin oil pumps of thin oil station of water supply pump of power generation boiler - Google Patents
Mutual backup interlocking program optimization method for thin oil pumps of thin oil station of water supply pump of power generation boiler Download PDFInfo
- Publication number
- CN112555138A CN112555138A CN202011572689.7A CN202011572689A CN112555138A CN 112555138 A CN112555138 A CN 112555138A CN 202011572689 A CN202011572689 A CN 202011572689A CN 112555138 A CN112555138 A CN 112555138A
- Authority
- CN
- China
- Prior art keywords
- thin oil
- pump
- logic block
- line
- feed pump
- Prior art date
- 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.)
- Granted
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/06—Control using electricity
- F04B49/065—Control using electricity and making use of computers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/02—Stopping, starting, unloading or idling control
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Control Of Positive-Displacement Pumps (AREA)
Abstract
The utility model provides a power generation boiler feed pump thin oil station thin oil pump interlocking program optimization method that is equipped with each other, relate to steel equipment technical field, it includes B feed pump A thin oil pump interlocking tangent line, B feed pump thin oil station export oil pressure low line, B feed pump A thin oil pump operating line, B electronic feed pump high-pressure cabinet trip-out line, B feed pump B thin oil pump operating line, B feed pump B thin oil pump remote control line AND B feed pump thin oil station oil tank temperature line, be connected with the DEVICE module through TIMER logic block, AND logic block AND OR logic block respectively, the DEVICE module is connected with QOR8 module AND RSFLP module respectively, the RSFLP module is connected with opening instruction/start instruction. The mutual backup interlocking program optimization method for the thin oil pumps of the water-feeding pump thin oil station of the power generation boiler avoids accidents.
Description
The technical field is as follows:
the invention relates to the technical field of steel equipment, in particular to a mutual backup interlocking program optimization method for thin oil pumps of a thin oil station of a water supply pump of a power generation boiler.
Background art:
when the thin oil pump of the thin oil station of the feed pump of the power generation boiler is used, the A, B thin oil pump is used for one time and used for one time, the backup oil pump is started in an interlocking manner when the outlet oil pressure is low (0.07 MPa), and the starting of the backup oil pump is delayed by 2S due to the problem of the existing oil pump in the logic execution sequence of a DCS program. When the fault of the thin oil pump A occurs once, the outlet oil pressure is reduced to 0.07MPa, and the thin oil pump B is started, but the outlet oil pressure is reduced to 0.04MPa (trip value) in the starting process, and the outlet oil pressure is low, so that the accident of protecting the combined-trip water-feeding pump occurs.
The invention content is as follows:
the invention aims to overcome the defects of the prior art, and provides a mutual backup interlocking program optimization method for the thin oil pump of the thin oil station of the water supply pump of the power generation boiler, which effectively avoids accidents.
In order to solve the problems existing in the background technology, the invention adopts the following technical scheme: the system comprises a water-feeding pump A thin oil pump interlocking throw tangent line B, a water-feeding pump thin oil station outlet oil pressure low line B, a water-feeding pump A thin oil pump operating line B, a water-feeding pump high-pressure cabinet trip line B, a water-feeding pump B thin oil pump operating line B, a water-feeding pump B thin oil pump remote control line B AND a water-feeding pump thin oil station oil tank temperature line B, wherein the water-feeding pump A thin oil pump interlocking throw tangent line B, the water-feeding pump thin oil station outlet oil pressure low line B, the water-feeding pump A thin oil pump operating line B, the water-feeding pump high-pressure cabinet trip line B, the water-feeding pump B thin oil pump operating line B, the water-feeding pump B thin oil pump remote control line B AND the water-feeding pump thin oil station oil tank temperature line B are respectively connected with a DEVICE module through a TIMER logic block, an AND logic block AND an OR logic block, the DEVICE module is respectively connected with a QOR8 module AND a RSFLP module, AND the RSFLP module.
A switch I on an interlocking tangent line of the water-feeding pump A of the B water-feeding pump A is connected with an AND logic block I, the AND logic block I is connected with a TIMER logic block V, AND the TIMER logic block V is connected with the DEVICE module.
AND a second switch on an oil pressure low line at the outlet of the water supply pump thin oil station B is connected with a second TIMER logic block, AND the second TIMER logic block is connected with a second AND logic block.
A switch III on the operation line of the thin oil pump A of the water-feeding pump B is respectively connected with a TIMER logic block I AND a TIMER logic block III, the TIMER logic block I is connected with an OR logic block, AND the OR logic block I is connected with an AND logic block; the TIMER logic block three is connected with the ADN logic block two and the OR logic block two respectively, and the OR logic block two is connected with the DEVICE module.
And a switch IV on the tripping line of the B electric feed water pump high-voltage cabinet is connected with a TIMER logic block IV, and the TIMER logic block IV is connected with an OR logic block II.
And a fifth switch and a sixth switch on the running line of the thin oil pump B of the feed pump B and the remote control line of the thin oil pump B of the feed pump B are connected with the DEVICE module.
And a switch on an oil temperature line of an oil tank of the water-feeding pump thin oil station B is connected with the CMP module, and the CMP module is connected with the DEVICE module.
The invention has the advantages that the execution sequence of the DCS logic blocks is changed, so that the whole set of interlocking start program is completed in one DCS page refreshing period (500 ms), no investment is caused, the production operation is not influenced, the logic execution time of the DCS program is optimized, and the safe production operation is ensured.
Description of the drawings:
FIG. 1 is a flow chart of the present invention.
The specific implementation mode is as follows:
referring to fig. 1, the present invention specifically adopts the following embodiments: comprises a thin oil pump interlock projection line 1 of a B water-feeding pump A, an oil pressure low line 2 at the outlet of a thin oil station of the B water-feeding pump, a thin oil pump operating line 3 of the B water-feeding pump A, a trip line 4 of a high-pressure cabinet of a B electric water-feeding pump, a thin oil pump operating line 5 of the B water-feeding pump B, a thin oil pump remote control line 6 of the B water-feeding pump B and an oil temperature line 7 of an oil tank of the thin oil station of the B water-feeding pump, a water-feeding pump A thin oil pump interlocking throw line 1 of a water-feeding pump B, a water-feeding pump B thin oil station outlet oil pressure low line 2, a water-feeding pump A thin oil pump operation line 3 of the water-feeding pump B, a high-voltage cabinet trip line 4 of an electric water-feeding pump B of the water-feeding pump B, a water-feeding pump B thin oil pump remote control line 6 of the water-feeding pump B AND a water-feeding pump B thin oil station oil tank temperature line 7 of the water-feeding pump B are respectively connected with an DEVICE module through a TIMER logic block, an AND logic block AND an OR logic block, the DEVICE module is respectively connected with a QOR8 module AND an RSFLP module, AND the RSFLP module is connected with an opening instruction/. A switch I on a water feeding pump A thin oil pump interlocking tangent line 1 of the water feeding pump B is connected with an AND logic block I, the AND logic block I is connected with a TIMER logic block V, AND the TIMER logic block V is connected with an DEVICE module. AND a second switch on the outlet oil pressure low line 2 of the water supply pump thin oil station B is connected with a second TIMER logic block, AND the second TIMER logic block is connected with a second AND logic block. A switch III on the operation line 3 of the thin oil pump A of the water supply pump B is respectively connected with a TIMER logic block I AND a TIMER logic block III, the TIMER logic block I is connected with an OR logic block, AND the OR logic block I is connected with an AND logic block; the TIMER logic block three is connected with the ADN logic block two and the OR logic block two respectively, and the OR logic block two is connected with the DEVICE module. And a switch IV on the tripping line 4 of the B electric feed water pump high-voltage cabinet is connected with a TIMER logic block IV, and the TIMER logic block IV is connected with an OR logic block II. And a switch five and a switch six on the operation line 5 of the thin oil pump B of the feed pump B and the remote control line 6 of the thin oil pump B of the feed pump B are connected with the DEVICE module. And a switch on an oil temperature line 7 of an oil tank of the water-feeding pump thin oil station B is connected with the CMP module, and the CMP module is connected with the DEVICE module.
The method for optimizing the mutual backup interlocking program of the thin oil pumps of the water supply pump thin oil station of the power generation boiler comprises the steps that a switch three-input logic block B on a thin oil pump operation line 3 of a water supply pump B executes a TIMER logic block I under the condition that an operation signal disappears when a thin oil pump operation signal of the water supply pump A is changed from '1' to '0', a trigger single pulse is output to an OR logic block I, the OR logic block I outputs to an AND logic block I, at the moment, under the condition that the switch one of a thin oil pump interlocking input line 1 of the water supply pump B is input to the thin oil pump A of the logic block B, two conditions of an input end of the AND logic block I are met, the output is '1' to the TIMER logic block I, AND the single pulse is triggered to a DEVICE module to output to trigger an RSFLP module controller to start the thin oil pump B of the water supply pump.
In conclusion, the mutual backup interlocking program optimization method for the thin oil pump of the water-feeding pump thin oil station of the power generation boiler is characterized in that the execution sequence of the DCS logic blocks is changed, so that the interlocking start program is completed in one DCS page refreshing period (500 ms), no investment is caused, the production operation is not influenced, the logic execution time of the DCS program is optimized, and the safe production operation is guaranteed.
Claims (7)
1. A mutual backup interlocking program optimization method for thin oil pumps of a thin oil station of a water supply pump of a power generation boiler is characterized by comprising the following steps: comprises a B feed pump A thin oil pump interlocking switching line (1), a B feed pump thin oil station outlet oil pressure low line (2), a B feed pump A thin oil pump operating line (3), a B electric feed pump high-voltage cabinet tripping line (4), a B feed pump B thin oil pump operating line (5), a B feed pump B thin oil pump remote control line (6) AND a B feed pump thin oil station oil tank temperature line (7), the B feed pump A thin oil pump interlocking switching line (1), the B feed pump thin oil station outlet oil pressure low line (2), the B feed pump A thin oil pump operating line (3), the B electric feed pump high-voltage cabinet tripping line (4), the B feed pump B thin oil pump operating line (5), the B feed pump B thin oil pump remote control line (6) AND the B feed pump thin oil station oil tank temperature line (7) are respectively connected with a DEVICE module through a TIMER logic block, an AND logic block AND an OR logic block, the DEVICE module is respectively connected with a QOR8 module AND an RSFLP module, the RSFLP module is connected with an on instruction/starting instruction (8).
2. The power generation boiler feed pump thin oil station thin oil pump mutual backup interlocking program optimization method according to claim 1, characterized in that: a switch I on a thin oil pump interlocking tangent line (1) of the water-feeding pump B A is connected with an AND logic block I, the AND logic block I is connected with a TIMER logic block V, AND the TIMER logic block V is connected with the DEVICE module.
3. The power generation boiler feed pump thin oil station thin oil pump mutual backup interlocking program optimization method according to claim 1, characterized in that: AND a second switch on an outlet oil pressure low line (2) of the water supply pump thin oil station B is connected with a second TIMER logic block, AND the second TIMER logic block is connected with a second AND logic block.
4. The power generation boiler feed pump thin oil station thin oil pump mutual backup interlocking program optimization method according to claim 1, characterized in that: a switch III on the operation line (3) of the thin oil pump A of the water-feeding pump B is respectively connected with a TIMER logic block I AND a TIMER logic block III, the TIMER logic block I is connected with an OR logic block, AND the OR logic block I is connected with an AND logic block; the TIMER logic block three is connected with the ADN logic block two and the OR logic block two respectively, and the OR logic block two is connected with the DEVICE module.
5. The power generation boiler feed pump thin oil station thin oil pump mutual backup interlocking program optimization method according to claim 1, characterized in that: and a switch IV on the B electric feed water pump high-voltage cabinet tripping line (4) is connected with a TIMER logic block IV, and the TIMER logic block IV is connected with an OR logic block II.
6. The power generation boiler feed pump thin oil station thin oil pump mutual backup interlocking program optimization method according to claim 1, characterized in that: and a fifth switch and a sixth switch on a running line (5) of a thin oil pump B of the feed pump B and a remote control line (6) of the thin oil pump B of the feed pump B are connected with the DEVICE module.
7. The power generation boiler feed pump thin oil station thin oil pump mutual backup interlocking program optimization method according to claim 1, characterized in that: and a switch on a tank oil temperature line (7) of the water supply pump thin oil station B is connected with the CMP module, and the CMP module is connected with the DEVICE module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011572689.7A CN112555138B (en) | 2020-12-28 | 2020-12-28 | Mutual backup interlocking program optimization method for thin oil pump of thin oil station of feed pump of power generation boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011572689.7A CN112555138B (en) | 2020-12-28 | 2020-12-28 | Mutual backup interlocking program optimization method for thin oil pump of thin oil station of feed pump of power generation boiler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112555138A true CN112555138A (en) | 2021-03-26 |
| CN112555138B CN112555138B (en) | 2022-11-22 |
Family
ID=75033396
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011572689.7A Active CN112555138B (en) | 2020-12-28 | 2020-12-28 | Mutual backup interlocking program optimization method for thin oil pump of thin oil station of feed pump of power generation boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112555138B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103352837A (en) * | 2013-07-05 | 2013-10-16 | 中石化宁波工程有限公司 | Stand-by pump automatically-starting control logic device with two pumps mutually serving as stand-by pumps |
| CN105204453A (en) * | 2015-03-11 | 2015-12-30 | 上海科洋科技股份有限公司 | Mutually standby pump chain self-starting and interlocking design method |
| CN105971863A (en) * | 2016-05-03 | 2016-09-28 | 中国能源建设集团广东省电力设计研究院有限公司 | Control method for interlocked starting of standby pumps and condensate pumps in condensed water pumping system |
| CN108061233A (en) * | 2017-11-30 | 2018-05-22 | 上海电气电站设备有限公司 | A kind of lubricating oil system alternating current-direct current oil pump switching system for considering dual redundant |
| CN211236631U (en) * | 2019-12-27 | 2020-08-11 | 北京中航泰达环保科技股份有限公司 | Start-stop control device for automatically switching main and standby states of two pumps |
-
2020
- 2020-12-28 CN CN202011572689.7A patent/CN112555138B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103352837A (en) * | 2013-07-05 | 2013-10-16 | 中石化宁波工程有限公司 | Stand-by pump automatically-starting control logic device with two pumps mutually serving as stand-by pumps |
| CN105204453A (en) * | 2015-03-11 | 2015-12-30 | 上海科洋科技股份有限公司 | Mutually standby pump chain self-starting and interlocking design method |
| CN105971863A (en) * | 2016-05-03 | 2016-09-28 | 中国能源建设集团广东省电力设计研究院有限公司 | Control method for interlocked starting of standby pumps and condensate pumps in condensed water pumping system |
| CN108061233A (en) * | 2017-11-30 | 2018-05-22 | 上海电气电站设备有限公司 | A kind of lubricating oil system alternating current-direct current oil pump switching system for considering dual redundant |
| CN211236631U (en) * | 2019-12-27 | 2020-08-11 | 北京中航泰达环保科技股份有限公司 | Start-stop control device for automatically switching main and standby states of two pumps |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112555138B (en) | 2022-11-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205231835U (en) | Structure for large -scale thermal power factory unit high pressure service power each other is being equipped with | |
| CN102916409A (en) | Voltage-time type feeder automation running method based on parameter adjustment | |
| CN103001192A (en) | Voltage-time feeder automation control method based on primary station control strategies | |
| CN203301225U (en) | Control device based on security-section interlocking self-switchover of gas-steam combined unit | |
| CN103398291B (en) | A kind of thermal power plant compressed air system and pressure classification supplying method thereof | |
| CN102966578A (en) | Pressure control method and device for pump unit of nuclear power station | |
| CN112555138B (en) | Mutual backup interlocking program optimization method for thin oil pump of thin oil station of feed pump of power generation boiler | |
| CN211524912U (en) | Safety device of steam turbine feed pump | |
| CN104536368B (en) | Electrically-driven fracturing pump power limitation protection device and method | |
| CN217558458U (en) | Power supply system for highly improving reliability of oil pump of hydropower station speed regulator | |
| CN101539288B (en) | Controller for electric heating steam generator | |
| CN104218670B (en) | A kind of super-container vessel power interruption recovering starting method | |
| CN103326457A (en) | Control method and control device based on gas-steam integral unit security segment interlock automatic switch | |
| CN103437985B (en) | The controlling method of water robbed fast by a kind of electrically driven feedpump | |
| CN112865175B (en) | FCB operation method of garbage power plant | |
| CN204928084U (en) | Prevention grid fluctuation system | |
| CN207277443U (en) | Pressurized tank ultra-low pressure starting device | |
| CN201733276U (en) | High-voltage high-power frequency converter with soft excitation debugging function | |
| CN215292787U (en) | Emergency starting device of diesel oil water supply pump | |
| CN202882014U (en) | Electric control combination valve device special for emergency water | |
| CN203339794U (en) | Diesel generator hard start control device | |
| CN218733408U (en) | Dual-power redundant power supply system of fire pump | |
| CN215580490U (en) | System for be used for stabilizing methyl alcohol device low voltage power supply | |
| CN221305773U (en) | Control device for self-starting of direct-current oil pump motor of thermal power plant steam turbine unit | |
| CN202279873U (en) | Automatic adjustable constant-pressure control vapor conveying system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |