CN101938861A - Linear heat source type heater for protecting and heating plate devices - Google Patents
Linear heat source type heater for protecting and heating plate devices Download PDFInfo
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- CN101938861A CN101938861A CN 201010255460 CN201010255460A CN101938861A CN 101938861 A CN101938861 A CN 101938861A CN 201010255460 CN201010255460 CN 201010255460 CN 201010255460 A CN201010255460 A CN 201010255460A CN 101938861 A CN101938861 A CN 101938861A
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Abstract
The invention relates to a linear heat source type heater for protecting and heating plate devices, which belongs to the technical field of measuring devices and comprises a heating plate, a protecting plate, an electric heating wire and fixing pins, wherein the heating plate is fixedly arranged in the center of the protecting plate; one end of a plurality of fixing pins is radially arranged on the side surface of the heating plate; the other end of the fixing pins is positioned in a slotted hole of the protecting plate; and the electric heating wire sleeved with a ceramic sleeve is positioned in grooves of the heating plate and the protecting plate. The invention enhances the uniformity of the surface temperature of the linear heat source type heater, reduces the radial radiation heat transfer of the heating plate, and enhances the measurement accuracy of thermal conductivity.
Description
Technical field
What the present invention relates to is a kind of measurement mechanism technical field, specifically is a kind of protective heat plate device line heat source formula heater.
Background technology
At present, in research, exploitation, production and the application process of some heat-insulating materials, need measure the conductive coefficient of material accurately.Because the protective heat plate device does not standardize with heating plate, at present, a lot of protective heat plate conductive coefficient testing apparatuss adopt the heating plate of square heater as high temperature side, caused heating plate corner location non-uniform temperature, influence accuracy and the precision measured greatly, be not enough to measure accurately the conductive coefficient of heat-insulating material.So, determining of the selection of heater types and heater strip embedded location, very crucial concerning protective heat plate measurement device solid material conductive coefficient, the accuracy that directly has influence on test data is with authoritative.
Through the prior art literature search is found; China Patent No. ZL88217498.3 disclosed " double-sample protection hot plate high temperature conductometer "; introduced a kind of double-sample protection hot plate high temperature conductometer of measuring non-metal solid heating coefficient or thermal resistance, Range of measuring temp is 500K～1000K.Heater adopts carbofrax material, has not only improved probe temperature but also reduced cost; Primary heater adopts permanent wall temperature to exchange heating, and the mode of the permanent hot-fluid DC heating in back has improved test speed; Outside tubular heater is made with the carbonization rod; And the accurate collection and the processing of multichannel small-signal have been realized with microcomputer.This invention does not illustrate that heater adopts the position of which kind of type and heater strip location.
Further retrieval is found, China Patent No. ZL200620103469.9 disclosed " heat-pipe flat-plate type measuring instrument for coefficient of thermal conductivity ", and it adopts the upper end to be provided with the Dewar bottle of flange, hangs testing apparatus in the Dewar bottle.To have the hot cold-peace hot plate of the good flat-plate heat pipe of average temperature performance, be arranged in the both sides up and down of sample, keep the isothermal level of sample both sides as conductometer; And adopt the processing mode that Dewar bottle is vacuumized, reduced the heat loss through convection loss that adds heat.This invention does not illustrate that heater adopts the position of which kind of type and heater strip location yet.
China Patent No. ZL200720063809.4 disclosed " a kind of good conductor thermal conductivity coefficient measurement instrument ", it adopts and contains good conductor conductive coefficient tester, hot junction temperature control sensor, insulation material, cold junction temperature control sensor, conductor refrigeration sheet, heater, radiator, base.Heater is equipped with in the hot junction of detected materials, the end face of detected materials cold junction is close to conductor refrigeration sheet one side, the another side and the radiator of conductor refrigeration sheet are close to, cold junction temperature control sensor and conductor refrigeration sheet are electrically connected with cold junction temperature control cable block by cable, and cold junction temperature is set adjusting knob in order to regulate the needed temperature of detected materials cold junction.This invention does not illustrate that equally heater adopts the position of which kind of type and heater strip location.
Summary of the invention
The present invention is directed to the prior art above shortcomings, a kind of protective heat plate device line heat source formula heater is provided, improve the uniformity of line heat source formula heater table surface temperature, reduced heating plate radiation heat transfer radially, improved the accuracy of thermal conductivity measurement.
The present invention is achieved by the following technical solutions, the present invention includes: heating plate, protective plate, electrical heating wire and fixing pin, wherein: heating plate is fixedly set in the central authorities of protective plate, one end of plurality of fixed pin radially is arranged at the side of heating plate, the other end of fixing pin is arranged in the slotted eye of protective plate, and the electrical heating wire that is with porcelain bushing is positioned at the groove of heating plate and protective plate.
The outside of described heating plate and protective plate inboard are respectively equipped with the triangle groove to reduce heating plate radiation heat transfer radially, have improved the even of heating plate test surfaces temperature field.
Described heating plate is provided with first groove of mirror image symmetry, and this first groove comprises eight sections deep-slotted chip breakers, eight semicircle lead-over grooves and four sections straight-line grooves, and wherein: the two ends of semicircle lead-over groove are connected with deep-slotted chip breaker or straight-line groove respectively.
The inwall radius of described first groove is 1.5mm;
Described protective plate is provided with second groove of mirror image symmetry, and this second groove comprises ten sections deep-slotted chip breakers and eight semicircle lead-over grooves, and wherein: the two ends of semicircle lead-over groove link to each other with deep-slotted chip breaker respectively.
The described electrical heating wire that is with porcelain bushing is embedded in first groove and second groove.
The inwall radius of described second groove is 1.5mm.
Described fixedly slotted eye specifically is positioned at the medial surface of protective plate with 120 ° of settings.
The length of described fixing pin is 0.8mm, and this fixing pin is for radially being provided with.
Compared with prior art.Square heating plate is owing to adopt the square arrangement electrical heating wire, caused the corner location non-uniform temperature, the present invention has effectively improved the uniformity of line heat source formula heater table surface temperature, reduced heating plate radiation heat transfer radially, making heating plate is one dimensional heat transfer, has improved the accuracy of thermal conductivity measurement.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the heating board structure front view.
Fig. 3 is the heating board structure vertical view.
Fig. 4 is the protective plate structural front view.
Fig. 5 is a protective plate structure vertical view.
Fig. 6 is a fixing pin structure partial profile.
Fig. 7 is the fixing pin detail of construction.
Fig. 8 is a fixing pin detail of construction right view.
Fig. 9 is a fixing pin detail of construction vertical view.
Embodiment
Below embodiments of the invention are elaborated, present embodiment is being to implement under the prerequisite with the technical solution of the present invention, provided detailed execution mode and concrete operating process, but protection scope of the present invention is not limited to following embodiment.
As shown in Figure 1, present embodiment comprises: two heating plates 1, two protective plates 2, bolt 3, fixing pin 4 and electrical heating wire (not shown), wherein: heating plate 1 is fixedly set in the central authorities of protective plate 2, one end of fixing pin 4 radially is arranged at the side of heating plate 1, the other end of fixing pin 4 is arranged in the slotted eye 11 of protective plate 2, and the electrical heating wire that is with porcelain bushing is positioned at first groove 5 and second groove 6 of heating plate 1 and protective plate 2.
Being carved with the cross section around the described heating plate 1 is that triangle heating plate groove 7 is with effective minimizing radiation heat transfer radially.
As shown in Figure 2, described heating plate 1 is provided with first groove 5 of mirror image symmetry, and this first groove 5 comprises eight sections deep-slotted chip breakers, eight semicircle lead-over grooves and four sections straight-line grooves, and wherein: the two ends of semicircle lead-over groove are connected with deep-slotted chip breaker or straight-line groove respectively;
Being carved with the cross section around the described heating plate 1 is that triangle heating plate groove 7 is with effective minimizing radiation heat transfer radially.
The diameter of described heating plate 1 is 119.8mm, and is by M3 bolt precession screwed hole 6 that heating plate 1 is fixing.
Described heating plate groove 7 is in the heating plate outside, and the cross section is triangular in shape.
As shown in Figure 4, described protective plate 2 is provided with second groove of mirror image symmetry, and this second groove comprises ten sections deep-slotted chip breakers and eight semicircle lead-over grooves, and wherein: the two ends of semicircle lead-over groove link to each other with deep-slotted chip breaker respectively.
The described protective plate 2 inboard protective plate grooves 10 of carving are with effective minimizing heating plate 1 radiation heat transfer radially, and the cross section of described protective plate groove 10 is triangular in shape.
The radius of described second groove 5 is 1.5mm.
Be respectively equipped with first screwed hole 6 and second screwed hole 9 on described heating plate 1 and the protective plate 2 so that bolt 3 to be set, described first screwed hole 6 and second screwed hole 9 are T type hole and uniform with 45.
Described heating plate 1 and protective plate 2 adopt the T2 oxygenless copper material to make.
As shown in Figure 6, described fixedly slotted eye 11 be 120 ° uniform.Shown in Fig. 7-9, described fixing pin 4 is made for having externally threaded austenite 304 stainless steels.
The present embodiment advantage comprises: (1) has adopted circular heating plate, by rational layout groove structure, makes heating plate test surfaces more uniform temperature.(2) adopted circular protective hot,, made protective plate test shows temperature even, radially dispelled the heat to reduce heating plate, guaranteed that heating plate is the one dimension heat radiation by the power adjustments temperature of rational control electrical heating wire by rational layout groove structure.(3) adopted fixing pin, adjusted the degree of depth of fixing pin precession screwed hole, heating plate is rotated to an angle to be fixed in the inboard slotted eye of protective plate, and heating plate is fixed in the middle of the protective plate exactly.(4) adopt 3 austenite 304 stainless steel fixing pins that conductive coefficient is low, heating plate is fixed in the middle of the protective plate, significantly reduce, improved the uniformity of heating plate test surfaces temperature because thermal contact conductance causes the variation in heating plate outer ledge temperature field.(5) be the triangle groove by having done the cross section respectively, can effectively reduce heating plate radiation heat transfer radially, improved the even of heating plate test surfaces temperature field in the heating plate outside and protective plate inboard.
Claims (7)
1. a protective heat plate device is with line heat source formula heater, comprise: heating plate, protective plate, electrical heating wire and fixing pin, wherein: heating plate is fixedly set in the central authorities of protective plate, one end of plurality of fixed pin radially is arranged at the side of heating plate, the other end of fixing pin is arranged in the slotted eye of protective plate, the electrical heating wire that is with porcelain bushing is positioned at first groove and second groove of heating plate and protective plate, it is characterized in that:
Described heating plate is provided with first groove of mirror image symmetry, and this first groove comprises eight sections deep-slotted chip breakers, eight semicircle lead-over grooves and four sections straight-line grooves, and wherein: the two ends of semicircle lead-over groove are connected with deep-slotted chip breaker or straight-line groove respectively;
Described protective plate is provided with second groove of mirror image symmetry, and this second groove comprises ten sections deep-slotted chip breakers and eight semicircle lead-over grooves, and wherein: the two ends of semicircle lead-over groove link to each other with deep-slotted chip breaker respectively.
2. protective heat plate device according to claim 1 is characterized in that with line heat source formula heater the outside of described heating plate and protective plate inboard are respectively equipped with the triangle groove.
3. protective heat plate device according to claim 1 is characterized in that with line heat source formula heater the inwall radius of described first groove is 1.5mm.
4. protective heat plate device according to claim 1 is characterized in that with line heat source formula heater the side that described screwed hole specifically is positioned at heating plate is provided with at interval with 45 ° or 120 °.
5. protective heat plate device according to claim 1 is characterized in that with line heat source formula heater the inwall radius of described second groove is 1.5mm.
6. protective heat plate device according to claim 1 is characterized in that with line heat source formula heater described fixedly slotted eye specifically is positioned at the medial surface of protective plate with 120 ° of settings.
7. protective heat plate device according to claim 1 is characterized in that with line heat source formula heater the length of described fixing pin is 0.8mm, and this fixing pin is for radially being provided with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010255460 CN101938861B (en) | 2010-08-17 | 2010-08-17 | Linear heat source type heater for protecting and heating plate devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010255460 CN101938861B (en) | 2010-08-17 | 2010-08-17 | Linear heat source type heater for protecting and heating plate devices |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101938861A true CN101938861A (en) | 2011-01-05 |
| CN101938861B CN101938861B (en) | 2013-01-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010255460 Expired - Fee Related CN101938861B (en) | 2010-08-17 | 2010-08-17 | Linear heat source type heater for protecting and heating plate devices |
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| Country | Link |
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| CN (1) | CN101938861B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108633114A (en) * | 2018-06-15 | 2018-10-09 | 四川深源钼业科技股份有限公司 | A kind of electric heating Si-Mo rod with bottom plate |
| CN108882413A (en) * | 2018-08-23 | 2018-11-23 | 镇江裕太防爆电加热器有限公司 | The electric heating pipe connecting structure of combined type high voltage heater |
| CN114813827A (en) * | 2022-04-25 | 2022-07-29 | 河海大学 | Micro-thermal test device and method for determining thermophysical property parameters of aquifer |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2060883U (en) * | 1989-11-29 | 1990-08-22 | 东南大学 | Main heater and protective heater for plate heat-transfer |
| CN2457831Y (en) * | 2000-12-20 | 2001-10-31 | 潍坊润泰智能电气有限公司 | Electric heater |
| CN2672652Y (en) * | 2003-12-26 | 2005-01-19 | 鸿富锦精密工业（深圳）有限公司 | Hot flow producing device |
| CN1916614A (en) * | 2005-08-19 | 2007-02-21 | 富准精密工业(深圳)有限公司 | Device for simulating heat source |
| JP4185028B2 (en) * | 2004-08-18 | 2008-11-19 | エスアイアイ・ナノテクノロジー株式会社 | Differential scanning calorimeter with cooling mechanism |
-
2010
- 2010-08-17 CN CN 201010255460 patent/CN101938861B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2060883U (en) * | 1989-11-29 | 1990-08-22 | 东南大学 | Main heater and protective heater for plate heat-transfer |
| CN2457831Y (en) * | 2000-12-20 | 2001-10-31 | 潍坊润泰智能电气有限公司 | Electric heater |
| CN2672652Y (en) * | 2003-12-26 | 2005-01-19 | 鸿富锦精密工业（深圳）有限公司 | Hot flow producing device |
| JP4185028B2 (en) * | 2004-08-18 | 2008-11-19 | エスアイアイ・ナノテクノロジー株式会社 | Differential scanning calorimeter with cooling mechanism |
| CN1916614A (en) * | 2005-08-19 | 2007-02-21 | 富准精密工业(深圳)有限公司 | Device for simulating heat source |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108633114A (en) * | 2018-06-15 | 2018-10-09 | 四川深源钼业科技股份有限公司 | A kind of electric heating Si-Mo rod with bottom plate |
| CN108882413A (en) * | 2018-08-23 | 2018-11-23 | 镇江裕太防爆电加热器有限公司 | The electric heating pipe connecting structure of combined type high voltage heater |
| CN108882413B (en) * | 2018-08-23 | 2024-01-09 | 镇江裕太防爆电加热器有限公司 | Electrothermal tube connection structure of combined high-voltage heater |
| CN114813827A (en) * | 2022-04-25 | 2022-07-29 | 河海大学 | Micro-thermal test device and method for determining thermophysical property parameters of aquifer |
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| Publication number | Publication date |
|---|---|
| CN101938861B (en) | 2013-01-02 |
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Granted publication date: 20130102 Termination date: 20200817 |