CN204988511U - Infrared pyrometer - Google Patents
Infrared pyrometer Download PDFInfo
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- CN204988511U CN204988511U CN201520764918.3U CN201520764918U CN204988511U CN 204988511 U CN204988511 U CN 204988511U CN 201520764918 U CN201520764918 U CN 201520764918U CN 204988511 U CN204988511 U CN 204988511U
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- infrared radiation
- amplifying circuit
- optics pipeline
- pipeline
- radiation pyrometer
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Abstract
The utility model discloses an infrared pyrometer relates to and measures technical field. Infrared pyrometer for measure the surface temperature of blade, contain signal transmission line, data acquisition system, optics pipeline, photoelectric conversion and amplifier circuit. In the infrared entering optics pipeline that quilt survey blade sent, infrared is received by photoelectric conversion and amplifier circuit behind the optics pipeline to changing the light signal into the signal of telecommunication, then enlargeing the signal of telecommunication, the signal of telecommunication after enlargeing is through signal transmission line with electric signal transmission to data acquisition center. The utility model has the advantages of: the utility model discloses an infrared pyrometer need not change the blade for non -contact measures, need not set up the pin hole on the engine yet, has saved the test lead, can realize the real -time measurement of leaf temperature moreover.
Description
Technical field
The utility model relates to field of measuring technique, particularly relates to a kind of infrared radiation pyrometer.
Background technology
The development of engine and gas turbine take high temperature as principal character, and improving turbine temperature is the important channel developing advanced engine.In order to improve blade trouble free service reliability, extend its life-span, just must Measurement accuracy, research turbo blade Temperature Distribution so as in blade material, cooling, structure, technique, install and take effective measures.Existing method of testing comprises thermopair and thermopaint etc.But when using thermopair, the test point on blade is very limited.Very large to the transformation of turbine rotor blade during test repacking, p-wire is drawn problem and is comparatively difficult to resolve certainly.Thermopaint method does not need the problem considering lead-in wire, but can only measure maximum temperature, cannot realize real time temperature and measure.And easily error is introduced in temperature interpretation.
Utility model content
The purpose of this utility model is to provide a kind of infrared radiation pyrometer, when adopting thermopair mode to test to solve in existing background technology, measuring point on blade is very limited, very large to the transformation of turbine rotor blade during test repacking, p-wire draws the more scabrous problem of problem, and when using thermopaint, cannot the problem of measuring tempeature in real time.
The technical solution of the utility model is: provide a kind of infrared radiation pyrometer, for measuring the surface temperature of blade, comprise signal transmssion line, data acquisition system (DAS), optics pipeline, opto-electronic conversion and amplifying circuit, wherein, described optics pipeline hollow and there are two ends, wherein one end is provided with flange, the sidewall of the other end is provided with optical window, the inside of described optics pipeline hollow is provided with eyeglass and collector lens, the infrared radiation that blade sends is beaten on eyeglass through optical window, and described infrared radiation reflexes on collector lens by eyeglass; Opto-electronic conversion and amplifying circuit are arranged on the flange end of described optics pipeline, comprise photodetector and amplifying circuit, light signal by described photoelectric detector, and is converted to electric signal by described infrared radiation after collector lens, and described electric signal amplifies through described amplifying circuit; One end of described signal transmssion line connects the output terminal of described amplifying circuit, and the other end connects described data acquisition system (DAS), and described electric signal transfers to described data acquisition system (DAS) through signal transmssion line.
Preferably, comprise optical filter further in described optics pipeline, described optical filter is arranged between described collector lens and described photodetector.
Preferably, described infrared radiation is after filtration after mating plate, and the wavelength of reservation is the light of 1.5 to 1.7 microns and 2.0 to 2.4 microns two wave bands.
Preferably, described eyeglass is set to fixed or convertible.
Preferably, described opto-electronic conversion and amplifying circuit comprise filtering circuit further, and described filtering circuit is arranged between described photodetector and amplifying circuit.
Preferably, described opto-electronic conversion and amplifying circuit comprise temperature measurement circuit further, and described temperature measurement circuit is for detecting the temperature of described photodetector.
Preferably, be provided with aperture diaphragm and field stop further in described optics pipeline, described aperture diaphragm and field stop are arranged between described collector lens and optical filter, and described aperture diaphragm is arranged between described collector lens and described field stop.
Preferably, the sidewall of described optics pipeline is provided with cold air hole, described cold air hole is used for passing into high pressure cold to the empty internal of described optics pipeline.
Preferably, the flange end of described optics pipeline is connected with transfer panel, the center of described transfer panel is provided with the through hole of band groove, and between the end face of flange that described optical filter is arranged on described optics pipeline and described transfer panel, described opto-electronic conversion and amplifying circuit are arranged in described groove.
The utility model has the advantage of: infrared radiation pyrometer of the present utility model is non-contact measurement, do not need to change blade, engine does not need arrange fairlead yet, eliminate test lead, and the real-time measurement of leaf temperature can be realized.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of infrared radiation pyrometer of the present utility model;
Fig. 2 is the part-structure figure of the optic conduit of the infrared radiation pyrometer shown in Fig. 1;
Fig. 3 is the flange end of the optic conduit of the infrared radiation pyrometer shown in Fig. 1 and the scheme of installation of transfer panel;
Fig. 4 is the opto-electronic conversion of infrared radiation pyrometer of the present utility model and the schematic diagram of amplifying circuit.
Wherein: 1-optics pipeline, 2-signal transmssion line, 3-blade, 4-optical filter, 5-transfer panel, 6-photodetector, 7-filtering circuit, 8-amplifying circuit, 9-temperature measurement circuit, 11-optical window, 12-cold air hole, 13-eyeglass, 14-collector lens, 15-aperture diaphragm, 16-field stop.
Embodiment
The object implemented for making the utility model, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the utility model embodiment, are further described in more detail the technical scheme in the utility model embodiment.In the accompanying drawings, same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Described embodiment is the utility model part embodiment, instead of whole embodiments.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the utility model, and can not be interpreted as restriction of the present utility model.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.Below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail.
In description of the present utility model, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", orientation or the position relationship of the instruction such as " outward " are based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore the restriction to the utility model protection domain can not be interpreted as.
As shown in Figures 1 to 4, a kind of infrared radiation pyrometer, for measuring the surface temperature of blade 3, comprises optics pipeline 1, signal transmssion line 2, optical filter 4, transfer panel 5, photodetector 6, filtering circuit 7, amplifying circuit 8 and temperature measurement circuit 9.Wherein, Fig. 1 is the schematic diagram of the infrared radiation pyrometer of the present embodiment; Fig. 2 is the part-structure figure of the optic conduit of the infrared radiation pyrometer shown in Fig. 1; Fig. 3 is the flange end of the optic conduit of the infrared radiation pyrometer shown in Fig. 1 and the scheme of installation of transfer panel 5; Fig. 4 is the opto-electronic conversion of infrared radiation pyrometer of the present utility model and the schematic diagram of amplifying circuit.
Optics pipeline 1 hollow and there are two ends, wherein one end is provided with flange, the sidewall of the other end is provided with optical window 11, the inside of optics pipeline 1 hollow is provided with eyeglass 13 and collector lens 14, the infrared radiation that blade 3 sends is through optical window 11 dozens on eyeglass 13, and described infrared radiation reflexes on collector lens 14 by eyeglass 13.
Opto-electronic conversion and amplifying circuit are arranged on the flange end of described optics pipeline 1, comprise photodetector 6 and amplifying circuit 8, infrared radiation is received by photodetector 6 after collector lens 14, and light signal is converted to electric signal, and electric signal amplifies through amplifying circuit 8.
One end of signal transmssion line 2 connects the output terminal of amplifying circuit 8, and other end connection data acquisition system, exaggerated electric signal transfers to data acquisition system (DAS) through signal transmssion line 2.
Comprise optical filter 4 further in optics pipeline 1, optical filter 4 is arranged between collector lens 14 and photodetector 6.Its advantage is: the radiating light source after filtration rear light being left specific band of mating plate 4 is photoelectrically converted and amplifying circuit reception.
In the present embodiment, infrared radiation is after filtration after mating plate 4, and the wavelength of reservation is the light of 1.5 to 1.7 microns and 2.0 to 2.4 microns two wave bands.Its advantage is: in pilot system, carbon dioxide and water vapor have the greatest impact to penetrating of light, and the light peneration of these two wave bands is the strongest, can the veiling glare of other wavelength of filtering by optical filter 4, at utmost reduce combustion gas to the interference of measured target radiant light.
The installation form of eyeglass 13 is set to fixed or convertible.
Be understandable that, the installation form of eyeglass 13 can also set according to actual conditions.Such as, in an alternative embodiment, tested system is fixing, makes fixed, use convenient after the angle of eyeglass 13 can being mixed up; In another alternative, the installation form of eyeglass 13 is set as convertible, can by rotating eyeglass 13, the angle of adjustment eyeglass 13 pairs of optical windows 11, thus the test under being applicable to different condition.
Opto-electronic conversion and amplifying circuit comprise filtering circuit 7 further, and filtering circuit 7 is arranged between photodetector 6 and amplifying circuit 8.Its advantage is: filtering circuit 7 by unwanted clutter filtering, can reduce the impact on test macro.
Opto-electronic conversion and amplifying circuit comprise temperature measurement circuit 9 further, and temperature measurement circuit 9 is for detecting the temperature of described photodetector 6.For ensureing that photodetector 6 is operated in linear work district, need the temperature of monitoring photodetector 6.Make measurement more reliable.
Be provided with aperture diaphragm 15 and field stop 16 in optics pipeline 1 further, aperture diaphragm 15 and field stop 16 are arranged between collector lens 14 and optical filter 4, and aperture diaphragm 15 is arranged between collector lens 14 and field stop 16.
The test spot size of infrared radiation pyrometer on blade 3 changes by the diameter adjusting field stop 16, and same test focal length changes by the distance between adjustment field stop 16 and collector lens 14.Aperture diaphragm 15 can stop the stray light source beyond test hot spot to enter field stop 16.
The sidewall of optics pipeline 1 is provided with cold air hole 12, cold air hole 12 is for passing into high pressure cold to the empty internal of optics pipeline 1.Ensure that the high-temperature fuel gas of engine interior can not enter in infrared radiation pyrometer.
In the present embodiment, the flange end of optics pipeline 1 is connected with transfer panel 5, the center of transfer panel 5 is provided with the through hole of band groove 51, optical filter 4 is arranged between the end face of flange of optics pipeline 1 and transfer panel 5, opto-electronic conversion and amplifying circuit are arranged in groove 51, and by cover plate protection opto-electronic conversion and amplifying circuit.
Finally it is to be noted: above embodiment only in order to the technical solution of the utility model to be described, is not intended to limit.Although be described in detail the utility model with reference to previous embodiment, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of each embodiment technical scheme of the utility model.
Claims (9)
1. an infrared radiation pyrometer, for measuring the surface temperature of blade (3), comprising signal transmssion line (2) and data acquisition system (DAS), it is characterized in that: comprise optics pipeline (1), opto-electronic conversion and amplifying circuit, wherein,
Described optics pipeline (1) hollow and there are two ends, wherein one end is provided with flange, the sidewall of the other end is provided with optical window (11), the inside of described optics pipeline (1) hollow is provided with eyeglass (13) and collector lens (14), the infrared radiation that blade (3) sends is beaten on eyeglass (13) through optical window (11), and described infrared radiation reflexes on collector lens (14) by eyeglass (13);
Opto-electronic conversion and amplifying circuit are arranged on the flange end of described optics pipeline (1), comprise photodetector (6) and amplifying circuit (8), described infrared radiation is received by described photodetector (6) after collector lens (14), and light signal is converted to electric signal, described electric signal amplifies through described amplifying circuit (8);
One end of described signal transmssion line (2) connects the output terminal of described amplifying circuit (8), and the other end connects described data acquisition system (DAS), and described electric signal transfers to described data acquisition system (DAS) through signal transmssion line (2).
2. infrared radiation pyrometer according to claim 1, it is characterized in that: comprise optical filter (4) further in described optics pipeline (1), described optical filter (4) is arranged between described collector lens (14) and described photodetector (6).
3. infrared radiation pyrometer according to claim 2, is characterized in that: described infrared radiation is after filtration after mating plate (4), and the wavelength of reservation is the light of 1.5 to 1.7 microns and 2.0 to 2.4 microns two wave bands.
4. infrared radiation pyrometer according to claim 1, is characterized in that: described eyeglass (13) is set to fixed or convertible.
5. infrared radiation pyrometer according to claim 1, it is characterized in that: described opto-electronic conversion and amplifying circuit comprise filtering circuit (7) further, described filtering circuit (7) is arranged between described photodetector (6) and amplifying circuit (8).
6. infrared radiation pyrometer according to claim 1, it is characterized in that: described opto-electronic conversion and amplifying circuit comprise temperature measurement circuit (9) further, described temperature measurement circuit (9) is for detecting the temperature of described photodetector (6).
7. infrared radiation pyrometer according to claim 2, it is characterized in that: in described optics pipeline (1), be provided with aperture diaphragm (15) and field stop (16) further, described aperture diaphragm (15) and field stop (16) are arranged between described collector lens (14) and optical filter (4), and described aperture diaphragm (15) is arranged between described collector lens (14) and described field stop (16).
8. infrared radiation pyrometer according to claim 1, it is characterized in that: the sidewall of described optics pipeline (1) is provided with cold air hole (12), described cold air hole (12) is for passing into high pressure cold to the empty internal of described optics pipeline (1).
9. infrared radiation pyrometer according to claim 2, it is characterized in that: the flange end of described optics pipeline (1) is connected with transfer panel (5), the center of described transfer panel (5) is provided with the through hole of band groove (51), between the end face of flange that described optical filter (4) is arranged on described optics pipeline (1) and described transfer panel (5), described opto-electronic conversion and amplifying circuit are arranged in described groove (51).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520764918.3U CN204988511U (en) | 2015-09-30 | 2015-09-30 | Infrared pyrometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520764918.3U CN204988511U (en) | 2015-09-30 | 2015-09-30 | Infrared pyrometer |
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| Publication Number | Publication Date |
|---|---|
| CN204988511U true CN204988511U (en) | 2016-01-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520764918.3U Active CN204988511U (en) | 2015-09-30 | 2015-09-30 | Infrared pyrometer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106679825A (en) * | 2016-12-14 | 2017-05-17 | 中国燃气涡轮研究院 | Rotation machinery blade surface heat radiant quantity measuring method and apparatus |
-
2015
- 2015-09-30 CN CN201520764918.3U patent/CN204988511U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106679825A (en) * | 2016-12-14 | 2017-05-17 | 中国燃气涡轮研究院 | Rotation machinery blade surface heat radiant quantity measuring method and apparatus |
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