CN202228334U - Device for on-line detecting of performance of axial flow fan - Google Patents
Device for on-line detecting of performance of axial flow fan Download PDFInfo
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- CN202228334U CN202228334U CN2011203847810U CN201120384781U CN202228334U CN 202228334 U CN202228334 U CN 202228334U CN 2011203847810 U CN2011203847810 U CN 2011203847810U CN 201120384781 U CN201120384781 U CN 201120384781U CN 202228334 U CN202228334 U CN 202228334U
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- 238000012806 monitoring device Methods 0.000 claims description 10
- 238000005259 measurement Methods 0.000 abstract description 16
- 238000012360 testing method Methods 0.000 abstract description 6
- 238000004891 communication Methods 0.000 abstract description 4
- 230000003068 static effect Effects 0.000 abstract description 3
- 238000012545 processing Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 26
- 230000008676 import Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 6
- 238000012544 monitoring process Methods 0.000 description 6
- 238000004458 analytical method Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 4
- 238000001514 detection method Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 239000003245 coal Substances 0.000 description 2
- 238000006477 desulfuration reaction Methods 0.000 description 2
- 230000023556 desulfurization Effects 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 235000015170 shellfish Nutrition 0.000 description 1
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Abstract
The utility model discloses a device for on-line detecting of performance of an axial flow fan, which comprises a sensor group, a data collecting device and a data processing computer or a data communication system (DCS), wherein the sensor group is connected with the data collecting device connected with the computer or the DCS. The sensor group comprises a gas flow transmitter, a gas pressure transmitter, a gas temperature transmitter, a torque sensor and the like which are all connected with the data collecting device. When data information relative to the gas flow are collected, the passing gas flow can be measured by utilizing the structure of an air inlet box of the axial flow fan, and the static pressure differential between an inlet of the air inlet box and an outlet of the air inlet box is related to the gas flow of a pipeline or a flow channel. The device for the on-line detecting of the performance of the axial flow fan has an automatic on-line testing function, strong practicality, achieves real time measurement to performance parameters of the fan, performs operation control and adjustment according to operation states of the fan, and achieves efficient operation of the fan. The flow is measured by utilizing the structure of the device, resistance is not added, and measurement is simple, convenient and accurate.
Description
Technical field
The utility model relates to a kind of axial fan performance on-line monitoring device.
Background technique
At present, the blower fan of conventional coal-fired power station boiler one general configuration is divided into gas fan, induced draught fan, primary air fan, desulfurization booster fan etc.Gas fan, primary air fan are to participate in deliver to boiler furnace after the air pressurized in the burning of fuel, and the flue gas after the fuel combustion is discharged into chimney to atmosphere via induced draught fan, desulfurization booster fan.The operational efficiency of blower fan is relevant with the design efficiency of blower fan body on the one hand, and is relevant with equipment place system performance in addition.The operating conditions point efficiency of Fan Equipment is actual to be the point of intersection of performance characteristics efficiency curve with the place system head characteristics curve of blower fan.Because blower fan and belong to big flow area flow measurement difficulty, precision is low, the foundation that hinders measuring system with accurately measure.
Technical development along with coal-fired power station boiler; Automatic monitoring level and Fan Equipment capacity improve constantly; Blower fan operational efficiency under different operating conditionss changes greatly, and the Operational Limits of real time on-line monitoring blower fan and efficient can in time be grasped the fan operation state; Take measures, realize the operation of blower fan efficient energy-saving.Therefore, but the detection device of a kind of on-line measurement fan performance parameter of urgent need, so that online detection fan operation state realizes that blower fan efficiently moves.
Summary of the invention
To above-mentioned existing technology; The utility model provides a kind of axial fan performance on-line monitoring device; Its data acquistion system for the Fan Equipment performance parameter that disposes in the coal-fired power station boiler is gathered and analyzed; Parameters such as the parameter of the coal fired boiler blower fan that calculation process shows such as air quantity, total head, input power, fan efficiency reach monitoring and analyze the good and bad purpose of boiler fan performance.
The utility model is realized through following technological scheme:
A kind of axial fan performance on-line monitoring device comprises sensor groups, data acquisition unit and data handling machine or DCS, and wherein, sensor groups is connected with data acquisition unit, and data acquisition unit is connected with data handling machine or DCS.
Said sensor groups comprises gas flow transmitter, atmospheric pressure transmitter, gas pressure transmitter, atmospheric temperature transmitter, gas temperature transmitter or/and torque sensor is connected with data acquisition unit respectively.Its function is: measure and respectively to survey parameter, like parameters such as the moment of torsion of atmospheric pressure, temperature, compressor flow differential pressure signal, blower fan inlet temperature, outlet temperature, blower fan inlet pressure, blower pressure, blower fan, rotating speeds.
The function of said gas flow transmitter is: realize the detection of gas flow.
The function of said atmospheric pressure transmitter, gas pressure transmitter, atmospheric temperature transmitter and gas temperature transmitter is: measure blower fan place ambient atmospheric conditions and blower fan import export temperature, pressure parameter.
Said torque sensor is contact-type torque sensor or non-contact torque sensor, and function is: measure the moment of torsion and the rotating speed of blower fan, calculate the air horsepower of blower fan.
The function of said data acquisition unit is: be meant the device of from analog-and digital-unit under tests such as sensor and other Devices to test, gathering the actual measurement parameter information automatically.Data acquisition unit is that combination computer based measurement software and hardware product is realized flexibly, user-defined measuring system.
The function of said data handling machine is: the parameter that collection transmits to the data collecting device is analyzed and is calculated; And then fan performance parameter such as flow of the blower fan that calculates, total head, fan shaft power, fan efficiency, carry out data display or data trend analysis.
The function of said DCS is: DCS is the abbreviation of decentralized control system (Distributed Control System); Being one, what be made up of process control level and process monitoring level is the multi-level computer system of tie with the communication network; Combine computer (Computer), communication (Communication), show (CRT) and control 4C such as (Control) technology, its basic thought is decentralized control, centralized operation, differentiated control, flexible configuration, configuration convenience.It is the product that computer technology, control technique and network technique height combine.DCS adopts several controllers (process station) that the numerous control points in the production process are controlled usually, also can carry out exchanges data through the network connection between each controller.Operational computations machine operation station is connected with controller through network, collects creation data, passes on operational order.Widespread usage in the conventional at home coal fired power plant of present DCS system.
During use, each sensor is connected with the measuring device of corresponding routine, sensor measurement is after each parameter signal value; Be sent to data acquisition unit, to data handling machine or DCS, data handling machine or DCS carry out computing and analysis to data acquisition unit then with data transmission then; Computing draws fan performance parameters such as the flow, total head, fan shaft power, fan efficiency of blower fan; And show through its display modular, directly reflect the running state of blower fan, real-time online.
The utlity model has autorun, practical, reduced personal factor, improved measuring accuracy, test is quick, accurate, can realize real-time monitoring.The utility model has been realized the real-time measurement to the fan performance parameter, helps the running state that the staff grasps blower fan, controls and safeguards according to the video data of blower fan.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the working principle schematic representation of the utility model;
Fig. 3 is a gas flow measurement device import schematic cross-section;
Fig. 4 is a gas flow measurement device outlet schematic representation;
Fig. 5 is the pressure tube of gas flow measurement device and the schematic representation that is connected of tube wall;
Fig. 6 is the user mode reference drawing of gas flow measurement device.
Wherein, 1, tubular body; 2, import cross section; 3, outlet; 4, Flow-rate adjustment baffle plate; 5, draught fan impeller; 6, blower fan transmission shaft; 7, pressure tube; 8, pressure-taking hole; 9, pressure-taking hole place pipeline wall; 10, weld seam.
Embodiment
Below in conjunction with accompanying drawing the utility model is further described.
A kind of axial fan performance on-line monitoring device; Comprise sensor groups, data acquisition unit and data handling machine or DCS, as shown in Figure 1, wherein; Sensor groups is connected with data acquisition unit, and data acquisition unit is connected with data handling machine or DCS.
Said sensor groups comprises gas flow transmitter, atmospheric pressure transmitter, gas pressure transmitter, atmospheric temperature transmitter, gas temperature transmitter and torque sensor, is connected with data acquisition unit respectively.Its function is: measure and respectively to survey parameter, like parameters such as the moment of torsion of atmospheric pressure, temperature, compressor flow differential pressure signal, blower fan inlet temperature, outlet temperature, pressure, blower fan, rotating speeds.
The function of said gas flow transmitter is: realize the detection of gas flow.
The function of said atmospheric pressure transmitter, gas pressure transmitter, atmospheric temperature transmitter and gas temperature transmitter is: measure blower fan place ambient atmospheric conditions and blower fan import export temperature, pressure parameter.
Said torque sensor is contact-type torque sensor or non-contact torque sensor, and function is: measure the moment of torsion and the rotating speed of blower fan, calculate the air horsepower of blower fan.
Said data acquisition unit is a conventional func module of the prior art, and its function is: each item actual measurement parameter is carried out collecting treatment.
The function of said data handling machine or DCS is: the parameter that collection transmits to the data collecting device is analyzed and is calculated; And then fan performance parameter such as flow of the blower fan that calculates, total head, fan shaft power, fan efficiency, carry out data display or data trend analysis.
During use; Each sensor and the measuring device of corresponding routine are connected (when in the DCS system, embedding " a kind of axial fan performance on-line monitoring device "; If the DCS system can provide blower fan partial correlation parameter; When comprising blower fan electric current, voltage, power factor, temperature, pressure etc.; The fan performance on-Line Monitor Device can adopt the existing relevant parameter in the DCS system to calculate fan shaft power, flow, pressure and other parameters, becomes blower fan performance on-line monitoring device in conjunction with other sensor groups.Preferably utilize existing or available parameter value in the DCS system), as shown in Figure 2, sensor measurement is after each parameter; Be sent to data acquisition unit, to data handling machine or DCS, data handling machine or DCS carry out computing and analysis to data acquisition unit then with data transmission then; Computing draws fan performance parameters such as the flow, total head, fan shaft power, fan efficiency of blower fan; And show through its display modular, directly reflect the running state of blower fan, real-time online.
Said gas flow transmitter is connected with the gas flow measurement device; Preferentially select for use the structure of gas flow measurement device to be: to comprise the tubular body 1 of both ends open, like Fig. 3, Fig. 4, shown in Figure 5, wherein; Have 4-8 pressure-taking hole 8 on the tube wall of tubular body 1 entrance point; Preferred 8 holes, the position of pressure-taking hole 8 are preferably placed at import cross section 2 back 100mm apart from import 20-500mm; Have 4-8 pressure-taking hole 8 on the tube wall of tubular body 1 outlet end, preferred 8 holes, the position of pressure-taking hole 8 is preferably placed at 100mm before the outlet 3 apart from outlet 20-500mm; Be connected with pressure tube 7 on each pressure-taking hole 8.。
The diameter of said pressure-taking hole 8 is 2-30mm, preferred 8mm, and employing is holed or is processed with other modes, and processing pressure-taking hole place pipeline wall 9 should keep smooth.Pressure tube 7 and pressure-taking hole 8 as shown in Figure 5 being welded to connect, weld seam 10 is air tight, does not stop up gaging hole.
The import cross section 2 of said preferred tubular body is a rectangle; Outlet 3 is a ring.
The diameter of said pressure tube 7 is at 8-30mm, preferred 12mm.
It is one section pipeline that the different band in cross section is turned that the inlet bellows of axial-flow blower are used in the power station, can be used as above-mentioned tubular body and uses, and as shown in Figure 6, among the figure, Flow-rate adjustment baffle plate 4, draught fan impeller 5, blower fan transmission shaft 6 are the structure of axial-flow blower.
Working principle is: it is a signal tube that the pressure tube of the pressure-taking hole on the import section tube wall gathers; It is a signal tube that the pressure tube of the pressure-taking hole on place, the outlet tube wall gathers; The static pressure of measuring two signal tubes is poor; Constitute the flux signal through the gas of inlet box, this static pressure difference is with relevant through the gas flow of this pipeline or runner.The definite of this gas flow can take shellfish effort Equation Theory calculating or confirm it through the flow calibration of model test or physical device.
The utlity model has autorun, practical, reduced personal factor, improved measuring accuracy, test is quick, accurate, can realize real-time monitoring.The utility model has been realized the real-time measurement to the fan performance parameter, helps the running state that the staff grasps blower fan, controls and safeguards according to the video data of blower fan.
Claims (3)
1. axial fan performance on-line monitoring device; It is characterized in that: comprise sensor groups, data acquisition unit and data handling machine or DCS; Wherein, sensor groups is connected with data acquisition unit, and data acquisition unit is connected with data handling machine or DCS.
2. axial fan performance on-line monitoring device according to claim 1; It is characterized in that: said sensor groups comprises gas flow transmitter, atmospheric pressure transmitter, gas pressure transmitter, atmospheric temperature transmitter, gas temperature transmitter or/and torque sensor is connected with data acquisition unit respectively.
3. axial fan performance on-line monitoring device according to claim 1 is characterized in that: said torque sensor is contact-type torque sensor or non-contact torque sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203847810U CN202228334U (en) | 2011-10-11 | 2011-10-11 | Device for on-line detecting of performance of axial flow fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203847810U CN202228334U (en) | 2011-10-11 | 2011-10-11 | Device for on-line detecting of performance of axial flow fan |
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| CN202228334U true CN202228334U (en) | 2012-05-23 |
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| CN2011203847810U Expired - Lifetime CN202228334U (en) | 2011-10-11 | 2011-10-11 | Device for on-line detecting of performance of axial flow fan |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102967406A (en) * | 2012-11-26 | 2013-03-13 | 山东电力集团公司电力科学研究院 | Pressure measurement system capable of implementing data acquisition and display simultaneously and wiring method of system |
| CN103604470A (en) * | 2013-12-10 | 2014-02-26 | 国家电网公司 | Method for measuring fan flow in real time according to DCS (distributed control system) data |
| CN104329281A (en) * | 2014-10-20 | 2015-02-04 | 东方日立(成都)电控设备有限公司 | Variable frequency energy-saving system for movable blade adjustable type induced draft fan |
| CN106153128A (en) * | 2016-03-24 | 2016-11-23 | 李建锋 | Compressor flow based on gas temperature rise and efficiency measurement instrument |
| CN107642499A (en) * | 2017-10-26 | 2018-01-30 | 中国计量大学 | Axial fan device for detecting performance and its assay method |
| CN109099001A (en) * | 2018-09-14 | 2018-12-28 | 国网河北省电力有限公司电力科学研究院 | Measure the detection platform and method of station boiler air inducing engine efficiency |
| CN110469530A (en) * | 2019-07-30 | 2019-11-19 | 广西电网有限责任公司电力科学研究院 | Station boiler axle induced-draft fan Performance Test System and its Efficiency test method |
| CN111307404A (en) * | 2020-03-06 | 2020-06-19 | 西南交通大学 | Device and method for testing internal flow field of jet fan |
-
2011
- 2011-10-11 CN CN2011203847810U patent/CN202228334U/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102967406A (en) * | 2012-11-26 | 2013-03-13 | 山东电力集团公司电力科学研究院 | Pressure measurement system capable of implementing data acquisition and display simultaneously and wiring method of system |
| CN102967406B (en) * | 2012-11-26 | 2015-03-04 | 山东电力集团公司电力科学研究院 | Pressure measurement system capable of implementing data acquisition and display simultaneously and wiring method of system |
| CN103604470A (en) * | 2013-12-10 | 2014-02-26 | 国家电网公司 | Method for measuring fan flow in real time according to DCS (distributed control system) data |
| CN104329281A (en) * | 2014-10-20 | 2015-02-04 | 东方日立(成都)电控设备有限公司 | Variable frequency energy-saving system for movable blade adjustable type induced draft fan |
| CN106153128A (en) * | 2016-03-24 | 2016-11-23 | 李建锋 | Compressor flow based on gas temperature rise and efficiency measurement instrument |
| CN107642499A (en) * | 2017-10-26 | 2018-01-30 | 中国计量大学 | Axial fan device for detecting performance and its assay method |
| CN109099001A (en) * | 2018-09-14 | 2018-12-28 | 国网河北省电力有限公司电力科学研究院 | Measure the detection platform and method of station boiler air inducing engine efficiency |
| CN110469530A (en) * | 2019-07-30 | 2019-11-19 | 广西电网有限责任公司电力科学研究院 | Station boiler axle induced-draft fan Performance Test System and its Efficiency test method |
| CN111307404A (en) * | 2020-03-06 | 2020-06-19 | 西南交通大学 | Device and method for testing internal flow field of jet fan |
| CN111307404B (en) * | 2020-03-06 | 2021-07-13 | 西南交通大学 | Device and method for testing internal flow field of jet fan |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: STATE ELECTRIC NET CROP. Effective date: 20130319 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20130319 Address after: 250002 Ji'nan City Central District, Shandong, No. 2 South Road, No. 500 Patentee after: Shandong Research Inst. of Electric Power Patentee after: State Grid Corporation of China Address before: 250002 Ji'nan City Central District, Shandong, No. 2 South Road, No. 500 Patentee before: Shandong Research Inst. of Electric Power |
|
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 250003 No. 2000, Wang Yue Road, Shizhong District, Ji'nan, Shandong Patentee after: Shandong Electric Power Research Institute Patentee after: State Grid Corporation of China Address before: 250002, No. 500, South Second Ring Road, Shizhong District, Shandong, Ji'nan Patentee before: Shandong Electric Power Research Institute Patentee before: State Grid Corporation of China |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120523 |