CN202119537U - Rotation type infrared temperature-measuring warning system of air preheater - Google Patents
Rotation type infrared temperature-measuring warning system of air preheater Download PDFInfo
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- CN202119537U CN202119537U CN2011202040429U CN201120204042U CN202119537U CN 202119537 U CN202119537 U CN 202119537U CN 2011202040429 U CN2011202040429 U CN 2011202040429U CN 201120204042 U CN201120204042 U CN 201120204042U CN 202119537 U CN202119537 U CN 202119537U
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- air preheater
- temperature
- infrared
- warning system
- infrared temperature
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Abstract
The utility model discloses a rotation type infrared temperature-measuring alarming system of an air preheater, which comprises a programmable controller, an infrared temperature-measuring sensor, a warning device, a driving motor, a connection rod, an air preheater partition board and at least two scanning devices. The programmable controller is in communication transmission connection with the infrared temperature-measuring sensor and the warning device, and the programmable controller is in control connection with the driving motor. The infrared temperature-measuring sensor is arranged in the scanning device, the scanning device can be installed on the air preheater partition board in rotation mode, and the scanning device is in transmission connection with the driving motor through the connection rod. The rotation type infrared temperature-measuring alarming system of the air preheater is simple in structure, high in sensitivity, short in response time and accurate in warning, and can timely discover abnormal conditions of the air perheater, thereby eliminating fire hazards.
Description
Technical field
The utility model relates to boiler warning field, relates in particular to a kind of air preheater infrared measurement of temperature warning system.
Background technology
Air preheater is to utilize fume afterheat to improve the equipment that gets into the boiler furnace air themperature, and present modal type is a swinging, and it is to utilize flue gas and air alternately to add hot-air through heating surface, makes air obtain heating to improve temperature on the one hand; The flue gas exhaust gas temperature is descended to improve the utilization factor of fume afterheat.
In use; Air preheater slowly rotates, and smoke inlet and air intake are constant, fume side and air side that flue gas and air get into air preheater through smoke inlet and air intake respectively; Flue gas is discharged the heat transferred heating surface after getting into fume side again from exhanst gas outlet; Heating surface is metal heat radiator, and the heat radiator that has absorbed flue gas heat enters into air side under the rotation of air preheater, with the heat transferred air; Get into boiler furnace through the air of preheating from air out, air preheater rotates a circle and promptly accomplishes the heat interchange between flue gas and the air.
The air preheater of Generator Set boiler; Experience shows at the scene, and most of air preheaters on fire at first is to take place at regional area; Imperfect combustion fuel fire on the inner heated element of air preheater causes by being deposited on, and this is confirmed for testing.Laboratory examination also proves, if when the focus that is burning made the heated element temperature rise to more than 700 ℃, these focuses can cause components made of steel on fire.
In operational process in order to prevent fire burns; Need install warning system additional; But present air preheater infrared measurement of temperature warning system adopts cantilevered, trolley type more, and the scene is installed or broken down; Need blowing out and get into air preheater inside to overhaul, change, and have the shortcoming that the response time is long, sensitivity is low.
The utility model content
The purpose of the utility model is to solve the problems of the prior art, and a kind of simple in structure, highly sensitive, warning boiler infrared measurement of temperature warning system promptly and accurately is provided.
The technical scheme of the utility model is: the rotary infrared measurement of temperature warning system of air preheater; This infrared measurement of temperature warning system comprises Programmable Logic Controller, infrared temperature-test sensor, warning device, drive motor, connecting rod, air preheater division board and at least 2 scanister; Said Programmable Logic Controller and infrared temperature-test sensor, warning device communications are joined, and said Controlled by Programmable Controller connects said drive motor; Said infrared temperature-test sensor is arranged in the said scanister; Said scanister is rotatable to be installed on the air preheater division board; Said scanister is in transmission connection through connecting rod and drive motor.
Said scanister is 3, and in the same arranged of said air preheater division board horizontal direction.
Said scanister comprises scan components and spiral arm, and scan components is installed on the top of spiral arm, and spiral arm is installed on the said primary heater division board and through connecting rod and said drive motor and is in transmission connection.
Said drive motor rotates amplitude range through connecting rod drive spiral arm in the space be ± 18 °.
Said infrared temperature-test sensor is installed on the inside of said scan components, in a side of said infrared temperature-test sensor the wind-force dust arrester is installed; The infrared probe protective device is installed above infrared temperature-test sensor, and the micro motor transmission inner with being arranged on scan components of said infrared probe protective device joined.
Said wind-force dust arrester connects with the dedusting gas pipeline that is arranged on the air preheater division board outside mutually.
Be connected with the touch-screen that intercoms mutually with it on the said Programmable Logic Controller, Programmable Logic Controller connects warning device, drive motor and wind-force dust arrester through auxiliary reclay.
The utility model is simple in structure, highly sensitive, the reaction time short, it is accurate to report to the police, thereby the abnormal condition that can in time find air preheater is got rid of disaster hidden-trouble.
Description of drawings
Fig. 1 is the connection synoptic diagram between each parts in the utility model;
Fig. 2 is a front view in the utility model;
Fig. 3 is a vertical view in the utility model;
Fig. 4 is the structural representation of scan components in the utility model;
Fig. 5 is the cut-open view among Fig. 4.
Embodiment
Understand for technological means, technical characterictic, utility model purpose and the technique effect that the utility model is realized is easy to understand,, further set forth the utility model below in conjunction with concrete diagram.
As shown in Figure 1: the rotary infrared measurement of temperature warning system of air preheater; This infrared measurement of temperature warning system comprises Programmable Logic Controller 1, infrared temperature-test sensor 2, warning device 3, drive motor 4, connecting rod 5, air preheater division board 6 and scanister 7; Said Programmable Logic Controller 1 joins with infrared temperature-test sensor 2, warning device 3 communications; The said drive motor 4 of said Programmable Logic Controller 1 control linkage; Be connected with on the Programmable Logic Controller 1 and its touch-screen that intercoms mutually 11, Programmable Logic Controller 1 connects warning device 3, drive motor 4 and wind-force dust arrester 73 through auxiliary reclay 12, and warning device 3 comprises pilot lamp and hummer; Arrow is represented to connect with order wire in Fig. 1, realizes that expression physical construction connects.
Referring to figs. 2 and 3 shown in: scanister 7 comprises scan components 71 and spiral arm 72, and scan components 71 is installed on the top of spiral arm 72, and spiral arm 72 is installed on the said primary heater division board 6 and through connecting rod 5 and said drive motor 4 and is in transmission connection.Infrared temperature-test sensor 2 is installed on the inside of said scan components 71, in a side of said infrared temperature-test sensor 2 wind-force dust arrester 73 is installed.
Shown in Figure 4 and 5: infrared probe protective device 74 is installed above infrared temperature-test sensor 2, and said infrared probe protective device 74 joins with micro motor 75 transmissions that are arranged on scan components 71 inside; Wind-force dust arrester 73 connects with the dedusting gas pipeline 8 that is arranged on air preheater division board 6 outsides mutually.
In the utility model; The signal output part of infrared temperature-test sensor 2 is connected with Programmable Logic Controller 1 through connection; Infrared temperature-test sensor 2 is transferred to Programmable Logic Controller 1 to measured temperature signal; Judge and handle and control output that touch-screen 11 all passes through connection with auxiliary reclay 12 and is connected with Programmable Logic Controller 1 by 1 pair of temperature signal of Programmable Logic Controller, carry out communication data between touch-screen 11 and the Programmable Logic Controller 1 and connect and show; Touch-screen 11 receives the signal of Programmable Logic Controller 1 and shows and supplies operator's operation, is transferred to Programmable Logic Controller 1 to operator's instruction simultaneously and carries out.
Said drive motor 4 drives spiral arm 72 through said connecting rod 5 and in the space, makes shuttle-scanning, and its rotation amplitude range is ± 18 °, and slewing area is little, and precision is high.The infrared temperature-test sensor 2 that is fixed on the spiral arm 72 has 3, is arranged to horizontal direction one row, can accurately measure the temperature on whole air preheater rotor surface.
When recording temperature, the probe of infrared temperature probe 2 increases suddenly when reaching 50 ℃; By 4 stalls of Programmable Logic Controller 1 controlling and driving motor; Make infrared temperature-test sensor 2 rest on this position and continue 1 minute; If this temperature jump is still arranged; Then by the pilot lamp flicker and the buzzer call of Programmable Logic Controller 1 control warning device 3, the temperature of being fed back when infrared temperature probe 2 surpasses 150 ℃ and duration when surpassing 1 minute, by the pilot lamp flicker and the buzzer call of Programmable Logic Controller 2 control warning devices 3.
When operator's click scan switch on touch-screen 11 was opened scanning, infrared probe protective device 74 was opened under the driving of micro motor 75, exposes the probe of infrared temperature-test sensor 2, and obtaining accurately, temperature shows; When operator's click scan switch on touch-screen 11 cuts out scanning; Infrared probe protective device 74 cuts out under the driving of micro motor 75; Hide the probe of infrared temperature-test sensor 2, make that it is prevented dust at non-scanning mode, the protection of waterproof, anti-pickling, and then the serviceable life of having improved infrared temperature-test sensor 2; This infrared probe protective device 74 is to open and close automatically, and has saved the loaded down with trivial details of operation manually.
When the utility model uses; The utility model is installed in the air preheater of boiler; Utilize infrared temperature-test sensor 2 to detect near the temperature of heated element, and the signal that records is sent to Programmable Logic Controller 1 handles, just often show near the temperature value that each measuring point of air preheater is; When high temperature or temperature jump situation occurring, carry out sound, light warning on the spot, Programmable Logic Controller 1 also can be charged to internal memory automatically with it and also can show, and has power-down protection; When the temperature extremes value of in appearance temperature surpasses air preheater, setting is the superhigh temperature situation; To carry out sound, light warning again; The utility model can be reserved the remote alarms interface simultaneously, through this interface alerting signal is delivered to power plant's automatic fire alarm system and reports to the police.
In order to guarantee the reliability service of the utility model, the utility model also has self-diagnostic function, and when Programmable Logic Controller did not receive any input signal, meeting was sound, light is reported to the police indication, and this signal will be delivered to central station of floating dock so that in time handle simultaneously.
Being merely the utility model preferred embodiment in sum, is not the practical range that is used for limiting the utility model.Be that all equivalences of doing according to the content of the utility model claim change and modification, all should belong to the technological category of the utility model.
Claims (7)
1. the rotary infrared measurement of temperature warning system of air preheater; It is characterized in that: this infrared measurement of temperature warning system comprises Programmable Logic Controller, infrared temperature-test sensor, warning device, drive motor, connecting rod, air preheater division board and at least 2 scanister; Said Programmable Logic Controller and infrared temperature-test sensor, warning device communications are joined, and said Controlled by Programmable Controller connects said drive motor; Said infrared temperature-test sensor is arranged in the said scanister; Said scanister is rotatable to be installed on the air preheater division board; Said scanister is in transmission connection through connecting rod and drive motor.
2. the rotary infrared measurement of temperature warning system of air preheater according to claim 1, it is characterized in that: said scanister is 3, and in the same arranged of said air preheater division board horizontal direction.
3. the rotary infrared measurement of temperature warning system of air preheater according to claim 1 and 2; It is characterized in that: said scanister comprises scan components and spiral arm; Scan components is installed on the top of spiral arm, and spiral arm is installed on the said primary heater division board and through connecting rod and said drive motor and is in transmission connection.
4. the rotary infrared measurement of temperature warning system of air preheater according to claim 1 is characterized in that: said drive motor drives spiral arm through connecting rod and in the space, rotates amplitude range and be ± 18 °.
5. the rotary infrared measurement of temperature warning system of air preheater according to claim 3, it is characterized in that: said infrared temperature-test sensor is installed on the inside of said scan components, in a side of said infrared temperature-test sensor the wind-force dust arrester is installed; The infrared probe protective device is installed above infrared temperature-test sensor, and the micro motor transmission inner with being arranged on scan components of said infrared probe protective device joined.
6. the rotary infrared measurement of temperature warning system of air preheater according to claim 5 is characterized in that: said wind-force dust arrester connects with the dedusting gas pipeline that is arranged on the air preheater division board outside mutually.
7. according to the rotary infrared measurement of temperature warning system of claim 1 or 6 described air preheaters; It is characterized in that: be connected with the touch-screen that intercoms mutually with it on the said Programmable Logic Controller, Programmable Logic Controller connects warning device, drive motor and wind-force dust arrester through auxiliary reclay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202040429U CN202119537U (en) | 2011-06-16 | 2011-06-16 | Rotation type infrared temperature-measuring warning system of air preheater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202040429U CN202119537U (en) | 2011-06-16 | 2011-06-16 | Rotation type infrared temperature-measuring warning system of air preheater |
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| Publication Number | Publication Date |
|---|---|
| CN202119537U true CN202119537U (en) | 2012-01-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011202040429U Expired - Lifetime CN202119537U (en) | 2011-06-16 | 2011-06-16 | Rotation type infrared temperature-measuring warning system of air preheater |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102881109A (en) * | 2012-02-28 | 2013-01-16 | 北京华拓信通科技股份有限公司 | Forest fire early-warning system based on non-refrigerant infrared temperature detector |
| CN103471721A (en) * | 2013-09-16 | 2013-12-25 | 上海市东方海事工程技术有限公司 | Trabeated fire detecting device for monitoring air preheater hot spots |
| CN105300527A (en) * | 2015-10-10 | 2016-02-03 | 赵佑民 | Hot-spot detection device of rotary air preheater rotor and hot-spot detection method thereof |
| CN106981164A (en) * | 2017-05-08 | 2017-07-25 | 山东中实易通集团有限公司 | The mathematical model establishing method and fire early-warning system of air preheater fire alarm |
| CN109443560A (en) * | 2018-10-31 | 2019-03-08 | 洛阳森德石化工程有限公司 | A kind of application method of air preheater temperature detection remote alarming system |
-
2011
- 2011-06-16 CN CN2011202040429U patent/CN202119537U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102881109A (en) * | 2012-02-28 | 2013-01-16 | 北京华拓信通科技股份有限公司 | Forest fire early-warning system based on non-refrigerant infrared temperature detector |
| CN103471721A (en) * | 2013-09-16 | 2013-12-25 | 上海市东方海事工程技术有限公司 | Trabeated fire detecting device for monitoring air preheater hot spots |
| CN105300527A (en) * | 2015-10-10 | 2016-02-03 | 赵佑民 | Hot-spot detection device of rotary air preheater rotor and hot-spot detection method thereof |
| CN106981164A (en) * | 2017-05-08 | 2017-07-25 | 山东中实易通集团有限公司 | The mathematical model establishing method and fire early-warning system of air preheater fire alarm |
| CN106981164B (en) * | 2017-05-08 | 2018-11-02 | 山东中实易通集团有限公司 | The mathematical model establishing method and fire early-warning system of air preheater fire alarm |
| CN109443560A (en) * | 2018-10-31 | 2019-03-08 | 洛阳森德石化工程有限公司 | A kind of application method of air preheater temperature detection remote alarming system |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120118 |
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| CX01 | Expiry of patent term |