CN104614088A - High-accuracy wall temperature measuring device - Google Patents
High-accuracy wall temperature measuring device Download PDFInfo
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- CN104614088A CN104614088A CN201510025845.0A CN201510025845A CN104614088A CN 104614088 A CN104614088 A CN 104614088A CN 201510025845 A CN201510025845 A CN 201510025845A CN 104614088 A CN104614088 A CN 104614088A
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- probe
- metal
- wall surface
- high precision
- temperature measurement
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Abstract
The invention provides a high-accuracy wall temperature measuring device. The high-accuracy wall temperature measuring device comprises a base part, a probe part and a metal guide tube, wherein the tail end of the metal guide tube is elastically connected with the base part, while the front end of the metal guide tube is movably connected with the probe part; the probe part comprises a metal wire tube, a probe body, a temperature-sensing element and a metal contact piece, all of which are orderly and fixedly connected with each other, and wherein one end of the metal wire tube is nested into the metal guide tube and the other end of the metal wire tube is fixedly connected with the probe body. The high-accuracy wall temperature measuring device is fixed above the wall; the probe is kept into close contact with the wall by virtue of the elastic force of a spring in the probe base to measure the temperature of the wall; besides, the device is high in temperature sensing capability, high in output signal strength and high in measurement accuracy.
Description
Technical field
What the present invention relates to is a kind of technology of temperature detection field, specifically a kind of device using thermal resistance high-acruracy survey wall surface temperature.
Background technology
The measurement of wall surface temperature in the industrial production widely.Pass through the retrieval to existing document and actual investigation discovery, the measurement employing of current most wall surface temperature is direct pastes or puts the thermopair enforcement be welded on tested wall.Because the measuring-signal of thermopair is relatively little, be only tens millivolts, in actual applications very easily by external interference, the measured deviation caused can reach several DEG C even tens DEG C usually.Direct spot welding or the thermopair that is pasted onto on wall in addition, itself is more fragile, easily damages, not quick detachable, brings inconvenience to practical application.
Through finding the retrieval of prior art, open (bulletin) the day 2013.08.21 of Chinese patent literature CN203148582U, disclose a kind of non-adhesive type surface temperature measurement thermopair, comprise thermocouple temperature measurement workplace 1, heat insulation silicon rubber 2, fixing copperhead 3, sliding bar 4, holddown spring 5, slide cartridge 6, fixed installation bar and mounting bracket 7 and temperature thermocouple extension line 8; The positive and negative polarities point of temperature thermocouple extension line 8 is welded on thermocouple temperature measurement workplace 1, thermocouple temperature measurement workplace 1 is silver-bearing copper sheet, stuffed heat insulated silicon rubber 2 between thermocouple temperature measurement workplace 1 and fixing copperhead 3 also bonds together the two, sliding bar 4 one end is welded with fixing copperhead 3, one end to be inserted in slide cartridge 6 and is located with holddown spring 5 and slide cartridge 6 inwall, fixed installation bar and mounting bracket 7 one end are welded with slide cartridge 6, its outside surface is as installation clamping workplace, and change installation site can regulate the contact traction between thermocouple temperature measurement workplace 1 and measurand.But this technology cannot solve measures the technical matterss such as surface of contact is little, measuring-signal is subject to external interference, measuring accuracy is low.
Summary of the invention
The present invention is directed to prior art above shortcomings, a kind of high precision wall surface temperature measurement mechanism is proposed, be pressed on wall by spring mechanical, thermometric surface of contact is large, measuring accuracy is high, compound linear is good, thus improve the accuracy of wall temperature measuring equipment measurement, reliability, and maintainable.
The present invention is achieved by the following technical solutions:
The present invention includes: comprising: seat part, probe segment and metal catheter, wherein: the end of metal catheter is connected with seat part elasticity, and head end is flexibly connected with probe segment.
Described probe segment comprises: the metal spool be fixedly connected sequentially, probe body, temperature-sensing element and Metal Contact sheet, wherein: one end of metal spool is socketed on metal catheter inside and the other end is fixedly connected with probe body.
Described seat part comprises: gland nut and probe stand body, wherein: metal catheter is movably set in the inside of probe stand body and end is contacted by elastic component with gland nut.
Filled insulation is filled with in the cavity that the medial surface of described Metal Contact sheet and probe body are formed.
Described probe body adopts fiberglass rod to make.
Described Metal Contact sheet is nickel foil sheet.
Described temperature-sensing element adopts thermal resistance RTD.
Technique effect
Compared with prior art, the technology of the present invention effect comprises:
1) the probe contacts wall of spring pre-tightening is used to measure wall surface temperature, can regulating spring pretightning force by adjustment gland nut;
2) temperature-sensing element adopts thermal resistance RTD, and output signal relatively large, antijamming capability is strong; Use scolding tin parcel temperature-sensing element and soldering on Metal Contact sheet, enhance the temperature-sensitive ability of temperature-sensing element.
3) filling heat insulator in the cavity of probe body, reduces most possibly and leaks heat.
4) this temperature measuring equipment is corrosion-resistant, thermometric surface of contact is large, measuring accuracy is high, compound linear is good, have larger measurement range.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is sonde configuration schematic diagram;
In figure: 1 gland nut, 2 elastic components, 3 probe stand bodies, 4 metal catheters, 5 pads, 6 hold-down nuts, 7 metal spools, 8AB glue, 9 probe body, 10 filled insulations, 11 scolding tin, 12 temperature-sensing elements, 13 Metal Contact sheets, 14 sensor leads.
Embodiment
Elaborate to embodiments of the invention below, the present embodiment is implemented under premised on technical solution of the present invention, give detailed embodiment and concrete operating process, but protection scope of the present invention is not limited to following embodiment.
Embodiment 1
As shown in Figure 1, the present embodiment comprises: seat part, probe segment and metal catheter 4, wherein: the end of metal catheter 4 is connected with seat part elasticity, and head end is flexibly connected with probe segment.
Described seat part comprises: gland nut 1 and probe stand body 3, wherein: metal catheter 4 is movably set in the inside of probe stand body 3 and end is contacted by elastic component 2 with gland nut 1.
Described elastic component 2 is preferably pre-pressing spring.
The top of described probe stand body 3 is provided with hold-down nut 6, and this hold-down nut 6 is for being fixed on the frame above tested wall by pick-up unit.
At least one pad 5 is preferably provided with between described hold-down nut 6 and probe stand body 3.
As shown in Figure 2, described probe segment comprises: the metal spool 7 be fixedly connected sequentially, probe body 9, temperature-sensing element 12 and Metal Contact sheet 13, wherein: one end of metal spool 7 is socketed on metal catheter 4 inside and the other end is fixedly connected with by AB glue 8 with probe body 9.
The signal end of described temperature-sensing element 12 successively by wire from probe body 9, metal catheter 4 to probe stand body 3, then drawn by sensor lead 14.
Filled insulation 10 is filled with in the cavity that the medial surface of described Metal Contact sheet 13 and probe body 9 are formed.
As shown in Figure 2, described probe body 9 adopts fiberglass rod to make, and has the features such as high-strength light, corrosion-resistant, thermal insulation is good.
Described Metal Contact sheet 13 is nickel foil sheet, corrosion-resistant, thermal conductivity good.
Described temperature-sensing element 12 uses scolding tin 11 to wrap up also soldering on Metal Contact sheet 13.
This device realizes measuring in the following manner:
This device is fixed in the frame above tested wall by hold-down nut by 1.
2, according to wall situation adjustment gland nut, obtain suitable snap-in force.
3 connection thermal resistors are to data acquisition unit or temperature transmitter.The temperature measurement signal of tested wall can be obtained.
Claims (10)
1. a high precision wall surface temperature measurement mechanism, is characterized in that, comprising: seat part, probe segment and metal catheter, wherein: the end of metal catheter is connected with seat part elasticity, and head end is flexibly connected with probe segment;
Described probe segment comprises: the metal spool be fixedly connected sequentially, probe body, temperature-sensing element and Metal Contact sheet, wherein: one end of metal spool is socketed on metal catheter inside and the other end is fixedly connected with probe body.
2. high precision wall surface temperature measurement mechanism according to claim 1, it is characterized in that, described seat part comprises: gland nut and probe stand body, wherein: metal catheter is movably set in the inside of probe stand body and end is contacted by elastic component with gland nut.
3. high precision wall surface temperature measurement mechanism according to claim 1 and 2, is characterized in that, described elastic component is pre-pressing spring.
4. high precision wall surface temperature measurement mechanism according to claim 2, is characterized in that, the top of described probe stand body is provided with hold-down nut, and this hold-down nut is used for the frame be fixed on by pick-up unit above tested wall.
5. high precision wall surface temperature measurement mechanism according to claim 2, is characterized in that, is provided with at least one pad between described hold-down nut and probe stand body.
6. high precision wall surface temperature measurement mechanism according to claim 1, is characterized in that, described metal spool is fixedly connected with by AB glue with probe body.
7. high precision wall surface temperature measurement mechanism according to claim 1, is characterized in that, the signal end of described temperature-sensing element successively by wire from probe body, metal catheter to probe stand body, then drawn by sensor lead.
8. high precision wall surface temperature measurement mechanism according to claim 1, is characterized in that, is filled with filled insulation in the cavity that the medial surface of described Metal Contact sheet and probe body are formed.
9. high precision wall surface temperature measurement mechanism according to claim 1, is characterized in that, described probe body adopts fiberglass rod to make; Described Metal Contact sheet is nickel foil sheet; Described temperature-sensing element adopts thermal resistance RTD.
10. high precision wall surface temperature measurement mechanism according to claim 1, is characterized in that, described temperature-sensing element wraps up also soldering on Metal Contact sheet by scolding tin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510025845.0A CN104614088B (en) | 2015-01-19 | 2015-01-19 | High-precision wall surface temperature measurement apparatus |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510025845.0A CN104614088B (en) | 2015-01-19 | 2015-01-19 | High-precision wall surface temperature measurement apparatus |
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| CN104614088A true CN104614088A (en) | 2015-05-13 |
| CN104614088B CN104614088B (en) | 2017-11-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510025845.0A Active CN104614088B (en) | 2015-01-19 | 2015-01-19 | High-precision wall surface temperature measurement apparatus |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106953471A (en) * | 2017-05-24 | 2017-07-14 | 合肥巨动力系统有限公司 | Hybrid powder motor stator winding temperature measurement structure |
| CN113532675A (en) * | 2021-07-22 | 2021-10-22 | 中国北方车辆研究所 | Interface method and structure for contact temperature measurement |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2039838U (en) * | 1988-12-03 | 1989-06-21 | 航天工业部一院七○四所 | Platinum thermal resistance temp. sensor |
| CN2072221U (en) * | 1990-05-18 | 1991-02-27 | 浙江省鄞县热电偶厂 | Spring-pressing fix type thermocouple |
| JPH0882556A (en) * | 1994-09-13 | 1996-03-26 | Kawasou Denki Kogyo Kk | Temperature sensor element in temperature measuring device |
| JP2004354368A (en) * | 2003-05-02 | 2004-12-16 | Ngk Spark Plug Co Ltd | Temperature sensor |
| CN101806638A (en) * | 2009-02-13 | 2010-08-18 | 天津市中环温度仪表有限公司 | Quick-response leakproof high-temperature thermocouple |
| CN101929894A (en) * | 2009-06-19 | 2010-12-29 | 张华文 | Heat probe |
| CN202938921U (en) * | 2012-07-12 | 2013-05-15 | 湖南镭目科技有限公司 | Integrated thermocouple temperature sensor |
| CN203732173U (en) * | 2014-01-18 | 2014-07-23 | 淄博飞雁先行测控技术有限公司 | Resistance thermometer for end surface |
-
2015
- 2015-01-19 CN CN201510025845.0A patent/CN104614088B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2039838U (en) * | 1988-12-03 | 1989-06-21 | 航天工业部一院七○四所 | Platinum thermal resistance temp. sensor |
| CN2072221U (en) * | 1990-05-18 | 1991-02-27 | 浙江省鄞县热电偶厂 | Spring-pressing fix type thermocouple |
| JPH0882556A (en) * | 1994-09-13 | 1996-03-26 | Kawasou Denki Kogyo Kk | Temperature sensor element in temperature measuring device |
| JP2004354368A (en) * | 2003-05-02 | 2004-12-16 | Ngk Spark Plug Co Ltd | Temperature sensor |
| CN101806638A (en) * | 2009-02-13 | 2010-08-18 | 天津市中环温度仪表有限公司 | Quick-response leakproof high-temperature thermocouple |
| CN101929894A (en) * | 2009-06-19 | 2010-12-29 | 张华文 | Heat probe |
| CN202938921U (en) * | 2012-07-12 | 2013-05-15 | 湖南镭目科技有限公司 | Integrated thermocouple temperature sensor |
| CN203732173U (en) * | 2014-01-18 | 2014-07-23 | 淄博飞雁先行测控技术有限公司 | Resistance thermometer for end surface |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106953471A (en) * | 2017-05-24 | 2017-07-14 | 合肥巨动力系统有限公司 | Hybrid powder motor stator winding temperature measurement structure |
| CN113532675A (en) * | 2021-07-22 | 2021-10-22 | 中国北方车辆研究所 | Interface method and structure for contact temperature measurement |
| CN113532675B (en) * | 2021-07-22 | 2023-07-14 | 中国北方车辆研究所 | Interface method and structure for contact type temperature measurement |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104614088B (en) | 2017-11-10 |
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