CN206160096U - Give pump variable frequency control system based on 9F level gas steam integral unit - Google Patents
Give pump variable frequency control system based on 9F level gas steam integral unit Download PDFInfo
- Publication number
- CN206160096U CN206160096U CN201621102560.9U CN201621102560U CN206160096U CN 206160096 U CN206160096 U CN 206160096U CN 201621102560 U CN201621102560 U CN 201621102560U CN 206160096 U CN206160096 U CN 206160096U
- Authority
- CN
- China
- Prior art keywords
- control
- feed
- frequency
- valve
- feedwater
- 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.)
- Expired - Fee Related
Links
Landscapes
- Control Of Steam Boilers And Waste-Gas Boilers (AREA)
Abstract
The utility model discloses a give pump variable frequency control system based on 9F level gas steam integral unit, including water -feeding pump, feed -regulating valve device, data acquisition system, converter, feedwater accent valve control, accent valve activestandby selection control, variable frequency control device and decision -making controlling means, the utility model discloses a rotational speed of water -feeding pump is controlled to the converter, has realized having reduced the consumption of water -feeding pump energy to high -pressure boiler drum level's regulation and to the automatic control of the whole variable speed of water -feeding pump, has reduced water supply system pipeline pressure, has prolonged the life of equipment, unusually unable during operation appears when the converter, the independent feedwater accent valve control of system's automatic switch -over to the operation of water -feeding pump power frequency under, transfer the valve control unusually unable during operation to appear when the feedwater, systematic normal operating is guaranteed by the control of solitary converter to the feedwater, has also improved in the energy saving and has given water security.
Description
Technical field
The utility model is related to natural gas power system automatic control technology, more particularly to a kind of to be based on 9F level combustion and steams
Unit erriger Varible Frequency Control System of Feed Water Pump.
Background technology
At present, the 9F level combustion and steam Unit errigers feed pump for occurring on market adopts constant speed pump, constant speed feed pump mostly
Outlet pressure reaches 15MPa, and water supply pump motor electric current is reached 51A, pressed using throttling feed-regulating valve at each feedwater user
The flow restriction control of power or flow.Many is had not using the 9F level combustion and steam Unit erriger feed-water pumps of constant speed feed pump
In place of sufficient, such as constant speed feeds water, and pump discharge pressure is high, and the big fragile conduit seals of pipeline pressure bearing load are with causing to feed water
System restriction loss is big；Pressure reduction is big before and after choke valve, is easily damaged choke valve and produces pipe vibration, easily causes pipeline and its annex
Damage, therefore, how to develop it is a kind of to feed pump whole process speed change automatically control, reduce feedwater piping pressure, reduce pipeline
Vibration, while the feed pump control system for reducing feed pump energy ezpenditure is the technology that those skilled in the art are badly in need of solving asking
Topic.
The content of the invention
In order to solve above-mentioned technical problem, the utility model provides a kind of based on the feedwater of 9F level combustion and steams Unit erriger
Pump frequency conversion control system, realizes and feed pump whole process speed change is automatically controlled, and reduces the consumption and feedwater of feed pump energy
System pipeline pressure, extends service life of equipment and energy saving.
One kind is based on 9F level combustion and steam Unit erriger Varible Frequency Control System of Feed Water Pump, including feed pump, feed-regulating valve
Device, data collecting system, frequency converter, feedwater are adjusted valve control, adjust the active and standby selection control of valve, frequency-converting control device and decision-making control
Device processed；
The data collecting system connects the frequency-converting control device and the feedwater adjusts valve control, the feedwater to adjust valve control
The system connection tune valve is active and standby to select control, and the tune valve is active and standby to select the control connection feed-regulating valve device；
The frequency-converting control device connects the Decision Control device, and the Decision Control device connects the frequency converter,
The frequency converter connects the feed pump；
The feed-regulating valve device connects the feed pump.
Preferably, the frequency-converting control device includes throttle control module, water lev el control module, Stream temperature degree control mould
The anti-vaporization control module of block, feed water preheater.
Preferably, the feed-regulating valve device includes main road feed-regulating valve and reserve feed regulating valve.
It is further preferred that the valve control connection throttle control module is adjusted in the feedwater.
One kind that the utility model is provided is based on 9F level combustion and steam Unit erriger Varible Frequency Control System of Feed Water Pump, by becoming
Frequency device realizes the regulation to high-pressure steam manifold stage and the automatic control to feed pump whole process speed change controlling the rotating speed of feed pump
System, reduces the loss of feed pump energy and reduces water supply system pipeline pressure, has both saved the energy while or extending and setting
Standby service life.
Description of the drawings
Fig. 1 is the utility model overall structure diagram.
Specific embodiment
In order that those skilled in the art is better understood from the technical solution of the utility model, below in conjunction with the accompanying drawings to this
Utility model is further elaborated.
As shown in figure 1, system is in normal course of operation, frequency converter and feedwater to be adjusted and keep drum under valve control collective effect
Water level is stablized.In the case that frequency converter appearance exception cannot work, system automatically switches to normal control loop control, i.e.,
Valve control is adjusted in independent feedwater under feed pump power frequency operation, it is ensured that the normal operation of system；When feedwater adjusts valve control exception occur
When cannot work, feed water by single Frequency Converter Control.
Signal is respectively sent to the throttling control of frequency-converting control device after data acquisition system system operation data
The anti-vaporization control module of module, water lev el control module, Stream temperature degree control module and feed water preheater, by throttle control module,
The anti-vaporization control module of water lev el control module, Stream temperature degree control module and feed water preheater produces defeated after corresponding control signal
Go out to Decision Control device, optimum control signal is exported to frequency converter by Decision Control device, by Frequency Converter Control feed pump
Rotating speed, realize control to HP steam drum feed-regulating valve device front end discharge.
Frequency-converting control device includes throttle control module, water lev el control module, Stream temperature degree control module and feed-water preheating
The anti-vaporization control module of device.
Wherein, valve control, control main road feed-regulating valve and reserve feed regulating valve are adjusted in throttle control module connection feedwater
Aperture, i.e., with 96% as main road feed-regulating valve and the aperture desired value of reserve feed regulating valve, realization reduce to greatest extent
Because of the restriction loss that main road feed-regulating valve and reserve feed regulating valve throttling and bringing.
Water lev el control module controls steam water-level, realizes quick regulation effect of the water level in fluctuation, it is ensured that drum
The stability of water level.
Stream temperature degree control module, when system unit temperature departure desired value, change control system output come realize to
The regulation of water pressure, prevents unit from the interruption of service that main vapour overtemperature produces fast cut-back occur.
The anti-vaporization control module of feed water preheater, with feed water preheater temperature as control object, is added with the vaporization curve of water
Upper certain nargin is that target control is worth control program, prevents water vapor in feed water preheater, damage equipment.
Feed-regulating valve device includes main road feed-regulating valve and reserve feed regulating valve, adjusts the active and standby selection control connection of valve
Feed-regulating valve device, realizes the regular switching of main road feed-regulating valve and reserve feed regulating valve, in running, main road
Feed-regulating valve and reserve feed regulating valve are mutually redundant standby.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
Any modification, equivalent and improvement made within the spirit and principle of utility model etc., should be included in the utility model
Protection domain within.
Claims (4)
- It is 1. a kind of to be based on 9F level combustion and steam Unit erriger Varible Frequency Control System of Feed Water Pump, it is characterised in that：Including feed pump, give Water regulating valve device, data collecting system, frequency converter, feedwater adjust valve control, adjust valve it is active and standby select control, frequency-converting control device with And Decision Control device；The data collecting system connects the frequency-converting control device and the feedwater adjusts valve control, the feedwater to adjust valve control to connect The active and standby selection control of the tune valve is connect, the tune valve is active and standby to select control to connect the feed-regulating valve device；The frequency-converting control device connects the Decision Control device, and the Decision Control device connects the frequency converter, described Frequency converter connects the feed pump；The feed-regulating valve device connects the feed pump.
- 2. according to claim 1 based on 9F level combustion and steam Unit erriger Varible Frequency Control System of Feed Water Pump, its feature exists In：The feed-regulating valve device includes main road feed-regulating valve and reserve feed regulating valve.
- 3. according to claim 1 based on 9F level combustion and steam Unit erriger Varible Frequency Control System of Feed Water Pump, its feature exists In：The frequency-converting control device includes throttle control module, water lev el control module, Stream temperature degree control module, feed water preheater Anti- vaporization control module.
- 4. according to claim 3 based on 9F level combustion and steam Unit erriger Varible Frequency Control System of Feed Water Pump, its feature exists In：The valve control connection throttle control module is adjusted in the feedwater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621102560.9U CN206160096U (en) | 2016-10-08 | 2016-10-08 | Give pump variable frequency control system based on 9F level gas steam integral unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621102560.9U CN206160096U (en) | 2016-10-08 | 2016-10-08 | Give pump variable frequency control system based on 9F level gas steam integral unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206160096U true CN206160096U (en) | 2017-05-10 |
Family
ID=58652381
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621102560.9U Expired - Fee Related CN206160096U (en) | 2016-10-08 | 2016-10-08 | Give pump variable frequency control system based on 9F level gas steam integral unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206160096U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107120637A (en) * | 2017-05-27 | 2017-09-01 | 广东粤电中山热电厂有限公司 | A kind of throttle type is fixed, the switching system and method for Variable Speed Feedwater Pumps |
| CN107355270A (en) * | 2017-07-25 | 2017-11-17 | 航天推进技术研究院 | A kind of the ORC generating sets and adjusting method of adaptive thermal source change |
| CN108758608A (en) * | 2018-06-14 | 2018-11-06 | 鞍钢股份有限公司 | A kind of method of the determining best main-piping pressure of boiler feedwater Variable-frequency Regulating System |
| CN109028004A (en) * | 2018-06-22 | 2018-12-18 | 武汉钢铁有限公司 | Peak regulation gas fired-boiler feedwater flow and pressure double-balance control system |
| CN117627905A (en) * | 2023-11-10 | 2024-03-01 | 中国船舶集团有限公司第七一九研究所 | Redundant control system for rotating speed of feed pump |
-
2016
- 2016-10-08 CN CN201621102560.9U patent/CN206160096U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107120637A (en) * | 2017-05-27 | 2017-09-01 | 广东粤电中山热电厂有限公司 | A kind of throttle type is fixed, the switching system and method for Variable Speed Feedwater Pumps |
| CN107355270A (en) * | 2017-07-25 | 2017-11-17 | 航天推进技术研究院 | A kind of the ORC generating sets and adjusting method of adaptive thermal source change |
| CN108758608A (en) * | 2018-06-14 | 2018-11-06 | 鞍钢股份有限公司 | A kind of method of the determining best main-piping pressure of boiler feedwater Variable-frequency Regulating System |
| CN108758608B (en) * | 2018-06-14 | 2019-08-27 | 鞍钢股份有限公司 | A kind of method of the determining best main-piping pressure of boiler feedwater Variable-frequency Regulating System |
| CN109028004A (en) * | 2018-06-22 | 2018-12-18 | 武汉钢铁有限公司 | Peak regulation gas fired-boiler feedwater flow and pressure double-balance control system |
| CN109028004B (en) * | 2018-06-22 | 2020-02-07 | 武汉钢铁有限公司 | Peak-regulating gas boiler feed water flow and pressure double-balanced control system |
| CN117627905A (en) * | 2023-11-10 | 2024-03-01 | 中国船舶集团有限公司第七一九研究所 | Redundant control system for rotating speed of feed pump |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206160096U (en) | Give pump variable frequency control system based on 9F level gas steam integral unit | |
| CN203404771U (en) | Frequency converter and adjusting valve control system of condensate water system | |
| CN203573174U (en) | Deoxygenator water level automatic control system | |
| CN102563612A (en) | Method for directly starting steam-driven feed water pump of large-sized thermal power plant | |
| CN206111506U (en) | Condensate pump frequency conversion automatic control system | |
| CN109057897B (en) | Steam source switching method for thermal power generating unit FCB | |
| KR20190057167A (en) | Intelligent sea water cooling system | |
| CN111928113B (en) | Control method of ammonia gas supply system of power plant liquid ammonia station | |
| CN205822349U (en) | A kind of water tower-constant voltage duplex water system | |
| CN110985218B (en) | Method and system for adjusting pressure of supercharger of gas turbine | |
| CN202381311U (en) | Automatic control system based on condensate pump of 9F-level gas-steam combined unit | |
| CN210977837U (en) | Device for supplying sealing water to water feeding pump of power plant condensate system | |
| WO2023078311A1 (en) | Unit condensed water broad-load adaptive optimization system | |
| KR101613227B1 (en) | Apparatus and method for power production using waste heat in a ship | |
| CN205530482U (en) | Variable frequency speed governing(VFSG) constant voltage water supply system | |
| CN212454562U (en) | Coal fired power plant feed pump steam turbine steam supply pipeline system with stable steam source switching | |
| CN109404075A (en) | Small turbine back pressure controls therrmodynamic system and its control method | |
| CN113031681B (en) | Condensation depth frequency conversion optimization method for thermal generator set | |
| CN105201805A (en) | Air compressor set intelligent control system and method based on user informatization allocation | |
| CN210459394U (en) | Improved frequency-conversion constant-pressure water supply equipment | |
| CN209557150U (en) | A kind of energy conservation turbine-generator units | |
| CN207813844U (en) | A kind of automatic start-stop pumping plant | |
| CN203052636U (en) | Condensate water circulation system of power plant | |
| CN206739627U (en) | More condenser boiler water supply systems | |
| CN111706574A (en) | Hydraulic control system and control method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170510 Termination date: 20171008 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |