CN101118189A - Station boiler air pre-heater hot point testing apparatus based on superioinferior position structure - Google Patents
Station boiler air pre-heater hot point testing apparatus based on superioinferior position structure Download PDFInfo
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- CN101118189A CN101118189A CNA2007100186123A CN200710018612A CN101118189A CN 101118189 A CN101118189 A CN 101118189A CN A2007100186123 A CNA2007100186123 A CN A2007100186123A CN 200710018612 A CN200710018612 A CN 200710018612A CN 101118189 A CN101118189 A CN 101118189A
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- air preheater
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- infrared sensor
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Abstract
The present invention discloses a hot point detecting device for an upper lower position structure-based power plant boiler air preheater. A main control cabinet consists of an upper machine and a lower machine which are connected together, and the main control cabinet is respectively connected with an alarm, an on-site cabinet, a group of thermocouples on the left side and the right side, and an infrared sensor; the thermocouples are arranged on the upper secondary draft side of the air preheater, the infrared sensor is arranged on the lower actuating mechanism trolley of the rotor heating surface of the same air preheater, and the trolley makes linear reciprocating motion on guide rails. The signal acquisition of the intelligent fire alarm of the present invention is realized by the thermocouples and the infrared sensor, an intelligent fire alarm algorithm based on a supporting vector machine is adopted, and the intelligent fire alarm decision is completed by upper machine software and lower machine software. When the system works normally, the judgment on the fire is made by the upper machine; when the communication between the upper machine and the lower machine fails or the upper machine fails, the judgment on the fire of the system is made by the lower machine, therefore greatly improving the reliability of the detecting system.
Description
Technical field
The invention belongs to the computer autocontrol technique field, relate to a kind of based on the station boiler air preheater hot spot pick-up unit of bit architecture up and down.
Background technology
Most computer control system all is to adopt industrial computer at present, finishes functions such as keyboard, demonstration, computing, control and output.Big, the complex structure of the system bulk of Zu Chenging, reliability are low like this, and existing Control Software is based on windows platform more, directly go to finish the work of control with computing machine, not too suitable to the higher application scenario of reliability requirement.
Whether station boiler air preheater (hereinafter to be referred as air preheater) hot point testing apparatus is to be used for detecting in real time large-size thermal power plant Boiler Important Auxiliary equipment-air preheater to have focus to produce in operational process, and even the detection system of fire failure generation.Existing air preheater hot spot pick-up unit as master controller, is finished signals collecting by industrial computer, the functions such as decision-making, motion logic control, fault alarm, given input of reporting to the police, this control structure poor anti jamming capability, failure rate height.In case computing machine breaks down, then system will paralyse, and will influence safety, the reliability service of air preheater and even whole generating unit greatly.
Summary of the invention
The purpose of this invention is to provide a kind ofly, solved the high problem of poor anti jamming capability, failure rate that exists in the prior art based on the station boiler air preheater hot spot pick-up unit of bit architecture up and down.
The technical solution adopted in the present invention is, a kind ofly comprises the master control cabinet based on the station boiler air preheater hot spot pick-up unit of bit architecture up and down, and the master control cabinet is connected to form by host computer and slave computer, and the master control cabinet connects left alarm and right alarm respectively; The master control cabinet is connected respectively with right sided cell with left cell,
Left cell comprises left with regard to cabinet; A left side is connected respectively with one group of left thermocouple, one group of left infrared sensor with regard to cabinet; This organizes the top Secondary Air side that left thermocouple is arranged on the air preheater in left side; This is organized left infrared sensor and is installed in same air preheater rotor and is heated on the basifacial dolly; Dolly is done straight reciprocating motion at guide rail; Traction has drag chain on the dolly; Cable and cooling water pipe are set in the drag chain; Dolly and drag chain pass through chain-driving by sprocket wheel; Sprocket wheel is driven by drive motors; Drive motors is by slave computer and left with regard to cabinet control rotation
The structure setting of right sided cell is consistent with left cell, and the left and right side unit inserts the master control cabinet separately, constitutes a complete air preheater hot spot pick-up unit.
The invention has the beneficial effects as follows, adopt the control device of upper and lower computer structure, realized the assurance function of the dual warning of upper and lower computer, the total system reliable operation.Realized the separation of upper and lower computer function, compact conformation, volume is little, reliability is high, has reduced the cable that signal transmits, and easy care more.
Description of drawings
Fig. 1 is the structural representation of the electrical equipment control of embodiments of the invention;
Fig. 2 is the structural representation of embodiments of the invention left cell;
Fig. 3 is the upper and lower machine control flow synoptic diagram of the embodiment of the invention.
Among the figure, 1, a left side is with regard to cabinet, 2, right, 3, host computer with regard to cabinet, 4, slave computer, 5, left thermopair, 6, left infrared sensor, 7, drive motor, 8, guide rail, 9, dolly, 10, drag chain, 11, sprocket wheel, 12, chain, 13, air preheater, 14 master control cabinets, 15, left alarm, 16, right alarm, 17, water inlet pipe and water outlet pipe, 18, right thermopair, 19, right infrared sensor.
Embodiment
The present invention is described in detail below in conjunction with the drawings and specific embodiments.
As shown in Figure 1, the present invention includes master control cabinet 14, master control cabinet 14 is connected to form by host computer 3 and slave computer 4, a master control cabinet 14 and a left side are with regard to cabinet 1, the right side connects respectively with regard to cabinet 2, a left side is with regard to cabinet 1, right effect with regard to cabinet 2 is according to actual conditions, carry out direct hand control at the scene of left and right sides air preheater respectively, master control cabinet 14 outer left alarm 15 and the right alarms 16 of being connected with, master control cabinet 14 is also left with monitoring respectively, the left side of right air preheater, a right thermopair and a left side, right infrared sensor connects respectively, receive a left side simultaneously, the thermopair of right both sides and the signal that infrared sensor transmits can be analyzed and report to the police the signal that monitoring is gathered.A left side also is connected respectively with left infrared sensor 6 with the left thermopair 5 in left side simultaneously with regard to cabinet 1; It is right that also the while is connected respectively with right infrared sensor 19 with the right thermopair 18 on right side with regard to cabinet 2.
The present invention is when implementing, left and right side at station boiler respectively is provided with an air preheater monitoring unit, every air preheater top secondary air side is evenly distributed with three thermopairs 5 (200MW, 300MW capacity), is furnished with four thermopairs for the unit of 600MW and 1000MW capacity.One cover topworks is installed in air preheater inside, two infrared sensors are installed on the dolly of topworks, simultaneously supporting have corresponding power supply, recirculated water and a blow device.The thermopair on top is used for detecting the temperature field distribution on air preheater top, the infrared sensor probe of bottom drives reciprocal motion by topworks, cooperate the rotation of air preheater rotor, can scan whole rotor heat accumulating element heating surface, thereby the temperature field that obtains internal rotor distributes.
As shown in Figure 2, the structure of the left cell of the embodiment of the invention comprises slave computer 4, slave computer 4 is connected with drive motor 7 with regard to cabinet 1 with a left side simultaneously, can distinguish the rotation of controlling and driving motor 7, do straight reciprocating motion on the guide rail in air preheater 13 8 together by drive motor 7 drive dollies 9 and drag chain 10, be provided with cable and the cooling water pipe that is connected water inlet pipe and water outlet pipe 17 in the drag chain 10, left thermopair 5 is connected respectively with slave computer 4 with regard to cabinet 1 with a left side by cable simultaneously with left infrared sensor 6.
One group of left side thermopair 5 of left cell is arranged on the top secondary air side of the air preheater 13 in left side, one group of left side infrared sensor 6 in left side is installed in same air preheater 13 rotors and is heated on the basifacial dolly 9, dolly 9 is done straight reciprocating motion on guide rail 8, traction has drag chain 10 on the dolly 9, dolly 9 and drag chain 10 are driven by chain 12 by sprocket wheel 11, and sprocket wheel 11 is driven by drive motor 7.
The right side of right sided cell is provided with identical with regard to the setting of the right thermopair of cabinet 2, a group 18, one group of right infrared sensor 19 and topworks and the structure in left side, responsible air preheater 13 rotors on right side are monitored.
Be provided with the cable and the water inlet pipe and water outlet pipe 17 that are connected with each infrared sensor 6 in the drag chain 10, the effect of drag chain cable is the signal that provides power supply and output to gather to each infrared sensor.The effect of water inlet pipe and water outlet pipe 17 be responsible for to each infrared sensor cool provide into, draining.
Above-mentioned left and right side structure constitutes a complete air preheater hot spot and detects monitoring unit, by the unified control of a central control system (master control cabinet 14), finishes the monitoring to the left and right side air preheater hot spot.
As shown in Figure 3, be the upper and lower machine control flow synoptic diagram of the embodiment of the invention.Host computer 3 is made of industrial control computer, the integrated LCD of this computing machine, keyboard, mouse, it provides based on the standard man-machine interface under Microsoft Visual C.NET 6.0 environment, and function such as the demonstration of the running status of system, intelligent fault warning, fault record, set-point input, make things convenient for the operations staff to operate; Finish the DCS communication with slave computer 4 (PLC), thermopair, the temperature signal of infrared sensor collection, the system running state that slave computer 4 is provided, fault-signal is handled and show; Set-point input with the operations staff simultaneously offers PLC.
The monitoring software of host computer 3 is worked out by Microsoft Visual C.NET 6.0 language.Because slave computer 4 (PLC) do not have unified industrial standard at present, so host computer 3 softwares should satisfy the communication function with multiple main flow PLC.The main flow PLC brand that native system can be supported has: SIEMENSS7-300, MODICON Quantum, MODICON Micro, GE FUNAC 9030, ABSLC-500, AB COMPACT Logics, OMRON C200.
Host computer 3, slave computer 4 connect by serial communication cable, realized the separation of upper and lower computer function, can give full play to functions such as the powerful interface display of industrial computer, fault record, serial communication respectively, and the characteristics of the powerful signals collecting of PLC, logic control and high reliability output.
In sum, the signals collecting of intelligent fire alarm of the present invention is realized that by thermopair and infrared sensor the intelligent fire alarm decision-making is finished by host computer 3 softwares.Because the intelligent fire alarm algorithm that is based on support vector machine (SVM) that system adopts, this complicated algorithm is easier realization on host computer 3.By each thermopair and infrared sensor temperature point to system carry out comprehensively, intelligent decision, thereby provide the whether judgement of breaking out of fire of air preheater 13.Slave computer 4 is provided with the off-limit alarm function equally, by prior design temperature alarm threshold value, reports to the police when the temperature that detects surpasses this threshold value.The priority that host computer 3 is reported to the police is higher than the priority that slave computer 4 is reported to the police.When system normally moves, the judgement of the condition of a fire is made by host computer 3; When 4 communications of host computer 3, slave computer are broken down or host computer 3 itself breaks down, then system transfers to automatically by slave computer 4 (PLC) the judgement of the condition of a fire and makes (being off-limit alarm), in case this has just guaranteed that control system breaks down, still have slave computer 4 (PLC) controller system is effectively controlled (comprising off-limit alarm, fault diagnosis, mechanism kinematic control), thereby improved the reliability of detection system greatly.
Claims (1)
1. one kind based on the station boiler air preheater hot spot pick-up unit of bit architecture up and down, it is characterized in that: comprise master control cabinet (14), master control cabinet (14) is connected to form by host computer (3) and slave computer (4), and master control cabinet (14) connects left alarm (15) and right alarm (16) respectively; Master control cabinet (14) is connected respectively with right sided cell with left cell,
Described left cell comprises a left side with regard to cabinet (1), and a left side is connected respectively with one group of thermopair a (5), one group of infrared sensor a (6) with regard to cabinet (1); This group thermopair a, (5) be arranged on left air preheater, (13) top secondary air side, this group infrared sensor a, (6) be installed in left air preheater, (13) the rotor basifacial dolly that is heated, (9) on, dolly, (9) at guide rail, (8) do straight reciprocating motion on, dolly, (9) go up traction drag chain is arranged, (10), drag chain, cable and cooling water pipe are set (10), (17), dolly, (9) and drag chain, (10) by sprocket wheel, (11) pass through chain, (12) drive, sprocket wheel, (11) by drive motor, (7) drive, drive motor, (7) by slave computer, (4) and a left side with regard to cabinet, (1) control is rotated
The structure setting of described right sided cell is consistent with left cell, and the left and right side unit inserts master control cabinet (14) separately, constitutes a complete air preheater hot spot pick-up unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100186123A CN100504325C (en) | 2007-09-07 | 2007-09-07 | Station boiler air pre-heater hot point testing apparatus based on upper and lower position structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100186123A CN100504325C (en) | 2007-09-07 | 2007-09-07 | Station boiler air pre-heater hot point testing apparatus based on upper and lower position structure |
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| Publication Number | Publication Date |
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| CN101118189A true CN101118189A (en) | 2008-02-06 |
| CN100504325C CN100504325C (en) | 2009-06-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2007100186123A Expired - Fee Related CN100504325C (en) | 2007-09-07 | 2007-09-07 | Station boiler air pre-heater hot point testing apparatus based on upper and lower position structure |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102784747A (en) * | 2012-07-16 | 2012-11-21 | 京东方科技集团股份有限公司 | High-temperature solidifying furnace |
| CN105203210A (en) * | 2015-10-23 | 2015-12-30 | 国网山西省电力公司大同供电公司 | Fault detection device and detection method of ultra-high voltage (UHV) substation transformer based on 360-degree infrared panoramic view and support vector machine (SVM) |
| CN105651395A (en) * | 2016-01-14 | 2016-06-08 | 嘉兴恒创电力设计研究院有限公司嘉善分公司 | Power station boiler air preheater hot spot detection system |
| CN107342031A (en) * | 2017-05-19 | 2017-11-10 | 上海悉德信息科技有限公司 | Front projection type subway shield door projection multimedia system |
| CN107917761A (en) * | 2017-11-17 | 2018-04-17 | 航天科工哈尔滨风华有限公司电站设备分公司 | A kind of infrared heat point detection device |
| CN110279969A (en) * | 2019-06-28 | 2019-09-27 | 中国汽车工程研究院股份有限公司 | A kind of environmental wind tunnel moves the method for arranging of heavy pressure fine spray |
| CN110954219A (en) * | 2019-11-15 | 2020-04-03 | 芜湖伊莱特电气有限公司 | Power distribution cabinet abnormity detection device |
| CN112034782A (en) * | 2020-09-17 | 2020-12-04 | 江阴信和电力仪表有限公司 | Air preheater online state monitoring and fault prediction method |
| CN112433551A (en) * | 2020-11-03 | 2021-03-02 | 北方魏家峁煤电有限责任公司 | Air preheater warning system, method and computer readable medium |
-
2007
- 2007-09-07 CN CNB2007100186123A patent/CN100504325C/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102784747A (en) * | 2012-07-16 | 2012-11-21 | 京东方科技集团股份有限公司 | High-temperature solidifying furnace |
| CN102784747B (en) * | 2012-07-16 | 2014-12-10 | 京东方科技集团股份有限公司 | High-temperature solidifying furnace |
| US9423636B2 (en) | 2012-07-16 | 2016-08-23 | Boe Technology Group Co., Ltd. | High temperature curing oven |
| CN105203210A (en) * | 2015-10-23 | 2015-12-30 | 国网山西省电力公司大同供电公司 | Fault detection device and detection method of ultra-high voltage (UHV) substation transformer based on 360-degree infrared panoramic view and support vector machine (SVM) |
| CN105651395A (en) * | 2016-01-14 | 2016-06-08 | 嘉兴恒创电力设计研究院有限公司嘉善分公司 | Power station boiler air preheater hot spot detection system |
| CN107342031A (en) * | 2017-05-19 | 2017-11-10 | 上海悉德信息科技有限公司 | Front projection type subway shield door projection multimedia system |
| CN107917761A (en) * | 2017-11-17 | 2018-04-17 | 航天科工哈尔滨风华有限公司电站设备分公司 | A kind of infrared heat point detection device |
| CN110279969A (en) * | 2019-06-28 | 2019-09-27 | 中国汽车工程研究院股份有限公司 | A kind of environmental wind tunnel moves the method for arranging of heavy pressure fine spray |
| CN110279969B (en) * | 2019-06-28 | 2020-07-14 | 中国汽车工程研究院股份有限公司 | Arrangement method of movable high-pressure water mist in environmental wind tunnel |
| CN110954219A (en) * | 2019-11-15 | 2020-04-03 | 芜湖伊莱特电气有限公司 | Power distribution cabinet abnormity detection device |
| CN112034782A (en) * | 2020-09-17 | 2020-12-04 | 江阴信和电力仪表有限公司 | Air preheater online state monitoring and fault prediction method |
| CN112433551A (en) * | 2020-11-03 | 2021-03-02 | 北方魏家峁煤电有限责任公司 | Air preheater warning system, method and computer readable medium |
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| Publication number | Publication date |
|---|---|
| CN100504325C (en) | 2009-06-24 |
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Granted publication date: 20090624 Termination date: 20130907 |