CN204255512U - Thermopair hermetically-sealed construction - Google Patents
Thermopair hermetically-sealed construction Download PDFInfo
- Publication number
- CN204255512U CN204255512U CN201420604203.7U CN201420604203U CN204255512U CN 204255512 U CN204255512 U CN 204255512U CN 201420604203 U CN201420604203 U CN 201420604203U CN 204255512 U CN204255512 U CN 204255512U
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- ring
- thermopair
- inner core
- hermetically
- movable back
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Abstract
The utility model discloses a kind of thermopair hermetically-sealed construction, it is used on high-temperature hot pipeline, the cylindrical shell of high-temperature hot pipeline comprises cylinder shell, cylindrical shell insulation bushing and inner core, and the thermopair hermetically-sealed construction be used on high-temperature hot pipeline comprises: thermocouple assembly, static seal structure and movable sealing structure; Thermocouple assembly sealing is fixed at cylinder shell place by gland nut and O-ring seal by static seal structure; Movable sealing structure comprises movable back-up ring and fixing back-up ring, fixing back-up ring is fastened on thermocouple assembly, movable back-up ring is the pad with eccentric inner hole, the mode that movable back-up ring matches with the perforate of inner core with its eccentric inner hole is weldingly fixed on the outer tube wall of inner core, movable back-up ring and the sliding contact to each other of fixing back-up ring.Due to the eccentric structure of movable back-up ring, the generation thermal walking if inner core is heated, then offset together with movable back-up ring, and fixing back-up ring contacts with movable back-up ring all the time, avoids high temperature gas flow invades cylindrical shell top by the eccentric aperture of movable back-up ring.
Description
Technical field
The utility model relates to a kind of thermopair hermetically-sealed construction, the thermopair hermetically-sealed construction particularly on a kind of high-temperature hot pipeline being used in band inner core and thermofin.
Background technology
Thermopair is temperature element conventional in temperature measuring instrument, its direct measuring tempeature, and temperature signal is converted to thermopower signal, is converted to the temperature of measured medium by secondary instrument.Thermopair is as main temperature sensing means, and purposes is very extensive, and its linked vector graph is also complicated various because application scenario is different with working environment.
In hot channel, often will use thermopair to measure the temperature of air-flow, for the pipeline configuration of individual layer, relatively more conventional measurement pattern is perforate on the barrel of hot channel, then puts into thermopair, finally the outer wall of thermopair and pipeline is fixed.For high-temperature hot pipeline, in order to ensure that pipeline can bear high temperature gas flow, high-temperature hot pipeline will take exotic material to add the three-decker pattern of collet, namely pipeline outermost adopts general structural steel, innermost layer bears high temperature with the inner core that High-temperature resistant alloy material is made, and the middle thermostable heat insulation material that adopts is to reduce the heat transfer of hot-fluid to outer wall.Produce certain thermal walking due to the rising of the meeting Yin Wendu in the process of work of the High-temperature resistant alloy material near high temperature gas flow side, if thermopair directly puts into pipeline, the movement of inner core will certainly produce thermopair and damage.So, for this multi-layer piping structure, and be that internal layer allows certain deflection, outer fixing pipeline configuration, when consideration the installation of TC, reasonably must design the fixed sturcture of thermopair and seal style.
Summary of the invention
The technical problems to be solved in the utility model is: overcome the deficiencies in the prior art, for the heat insulation structural that a kind of high-temperature hot pipeline is special, devises the thermopair bearing on a kind of high-temperature hot pipeline and hermetically-sealed construction.
The thermopair hermetically-sealed construction that the utility model adopts is used on high-temperature hot pipeline, the cylindrical shell of described high-temperature hot pipeline comprises cylinder shell, cylindrical shell insulation bushing and inner core, described cylinder shell, described cylindrical shell insulation bushing and described inner core are equipped with the perforate for installing thermopair, and this thermopair hermetically-sealed construction comprises: thermocouple assembly, static seal structure and movable sealing structure; Described thermocouple assembly sealing is fixed at described cylinder shell place by gland nut and O-ring seal by described static seal structure; Described movable sealing structure comprises movable back-up ring and fixing back-up ring, described fixing back-up ring is fastened on thermocouple assembly, described movable back-up ring is the pad with eccentric inner hole, described movable back-up ring is weldingly fixed on the outer tube wall of described inner core in the mode that its eccentric inner hole matches with the perforate of described inner core, described movable back-up ring and the sliding contact to each other of described fixing back-up ring.
Preferred described static seal structure comprises thread support, O-ring seal, back up pad and gland nut; Described thread support is weldingly fixed in the perforate of described cylinder shell, and described thread support offers endoporus; Described back up pad is with the card edge of matching with the endoporus of thread support, and described card, along inserting the endoporus of described thread support from outside, be provided with O-ring seal, and described back up pad offers endoporus between described back up pad and described thread support; Described gland nut is screwed onto on described thread support.
Preferred described thermocouple assembly inserts in described high-temperature hot pipeline via the wall of described cylindrical shell, and it comprises temperature element, protective casing and insulation bushing; Described temperature element is arranged in described protective casing, is welded to connect with described protective casing; Described protective casing inserts the endoporus of described back up pad, and is fixedly welded on described back up pad; Between the wall of described protective casing and described cylindrical shell, described insulation bushing is installed; Described fixing back-up ring is fastened on described protective casing, and the outside of described fixing back-up ring abuts with described insulation bushing.
The eccentric distance of the eccentric inner hole of preferred described movable back-up ring determines according to the thermal walking of described inner core.
Preferred described cylinder shell adopts general structural steel to make, and described cylindrical shell insulation bushing and described insulation bushing all use high temperature resistant alumina silicate fibre cloth, and described inner core adopts high-temperature alloy steel to make.
The beneficial effect that the technical solution of the utility model is brought is:
(1) simple, convenient disassembly, good seal is assembled.
(2) thermal expansion curve of inner core is considered.
Accompanying drawing explanation
Fig. 1 is the sectional view of the thermopair hermetically-sealed construction be used on high-temperature hot pipeline;
Fig. 2 is movable back-up ring floor map;
Symbol description
1. temperature element (bushing type), 2. protective casing, 3. movable back-up ring, 4. fixing back-up ring, 5. inner core, 6. insulation bushing, 7. cylinder shell, 8. thread support, 9. O-ring seal, 10. back up pad, 11. gland nuts, 12. cylindrical shell insulation bushings
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
As shown in the figure, the thermopair hermetically-sealed construction be used on high-temperature hot pipeline comprises temperature element 1, protective casing 2, movable back-up ring 3, fixing back-up ring 4, inner core 5, insulation bushing 6, thread support 8, O-ring seal 9, back up pad 10, gland nut 11 and cylindrical shell insulation bushing 12.
The cylindrical shell of whole high-temperature hot pipeline is made up of three-decker: outermost is cylinder shell 7, makes with general structural steel; Centre is cylindrical shell insulation bushing 12, material selection is high temperature resistant alumina silicate fibre cloth; Internal layer is the inner core 5 made with high-temperature alloy steel; Perforate on cylinder shell 7, weld thread support 8 in hole, thread support 8 offers endoporus; This card, with the card edge of matching with the endoporus of thread support 8, inserts the endoporus of thread support 8 along from outside, is provided with O-ring seal 9 between back up pad 10 and thread support 8 by back up pad 10; Temperature element 1 is arranged in protective casing 2, adopts be welded to connect with protective casing 2; Protective casing 2 inserts in the endoporus of back up pad 10, and is welded in back up pad 10, is provided with insulation bushing 6 between protective casing 2 and the wall of cylindrical shell; Gland nut 11 adopts with thread support 8 and is threaded; Movable back-up ring 3 is the pads (as shown in Figure 2) with eccentric inner hole, movable back-up ring 3 is weldingly fixed on (so-called outer tube wall refers to the barrel of insulation bushing 12 side of inner core) on inner core 5 outer tube wall in the mode that its eccentric inner hole matches with the patchhole of inner core 5, and its assembling mode according to which side of pipeline fixed constraint is determined; Fixing back-up ring 4 is fastened on protective casing 2; contact with movable back-up ring 3 inside fixing back-up ring 4; outside abuts with insulation bushing 6 (outside refers to away from inner core side herein, and inner side refers near inner core side), fixes and can mutually slide between back-up ring 4 and movable back-up ring 3.
Hermetically-sealed construction of the present utility model has two places: a place is the static seal at top, is realized by O-ring seal 9; One place is the motive seal in bottom, is realized by movable back-up ring 3 and fixing back-up ring 4.Movable back-up ring 3 is the pads with eccentric inner hole, and the eccentric distance of endoporus is determined according to the thermal walking of inner core 5, and fixing back-up ring 4 fits tightly with protective sleeve 2, insulation bushing 6 and movable back-up ring 3.Assuming that now in figure inner core 5 be at right side (right side during in the face of accompanying drawing 1) fixed constraint, then inner core 5 to be heated the thermal walking that will produce left due to the effect of high temperature gas flow, due to the eccentric structure of movable back-up ring 3, now inner core 5 is moved to the left together with movable back-up ring 3, and fixing back-up ring 4 contacts with movable back-up ring 3 all the time, avoid high temperature gas flow invades cylindrical shell top by the eccentric aperture of movable back-up ring 3.
To each building block of the present utility model, position relationship and connected mode when not changing its function, the equivalent transformation carried out or alternative, also falls into protection domain of the present utility model.
Claims (5)
1. a thermopair hermetically-sealed construction, it is used on high-temperature hot pipeline, the cylindrical shell of described high-temperature hot pipeline comprises cylinder shell, cylindrical shell insulation bushing and inner core, described cylinder shell, described cylindrical shell insulation bushing and described inner core are equipped with the perforate for installing thermopair, the feature of this thermopair hermetically-sealed construction be used on high-temperature hot pipeline is, comprising: thermocouple assembly, static seal structure and movable sealing structure; Described thermocouple assembly sealing is fixed at described cylinder shell place by gland nut and O-ring seal by described static seal structure; Described movable sealing structure comprises movable back-up ring and fixing back-up ring, described fixing back-up ring is fastened on thermocouple assembly, described movable back-up ring is the pad with eccentric inner hole, described movable back-up ring is weldingly fixed on the outer tube wall of described inner core in the mode that its eccentric inner hole matches with the perforate of described inner core, described movable back-up ring and the sliding contact to each other of described fixing back-up ring.
2. thermopair hermetically-sealed construction according to claim 1, is characterized in that: described static seal structure comprises thread support, O-ring seal, back up pad and gland nut; Described thread support is weldingly fixed in the perforate of described cylinder shell, and described thread support offers endoporus; Described back up pad is with the card edge of matching with the endoporus of thread support, and described card, along inserting the endoporus of described thread support from outside, be provided with O-ring seal, and described back up pad offers endoporus between described back up pad and described thread support; Described gland nut is screwed onto on described thread support.
3. thermopair hermetically-sealed construction according to claim 2, is characterized in that: described thermocouple assembly inserts in described high-temperature hot pipeline via the wall of described cylindrical shell, and it comprises temperature element, protective casing and insulation bushing; Described temperature element is arranged in described protective casing, is welded to connect with described protective casing; Described protective casing inserts the endoporus of described back up pad, and is fixedly welded on described back up pad; Between the wall of described protective casing and described cylindrical shell, described insulation bushing is installed; Described fixing back-up ring is fastened on described protective casing, and the outside of described fixing back-up ring abuts with described insulation bushing.
4. the thermopair hermetically-sealed construction according to any one of claims 1 to 3, is characterized in that: the eccentric distance of the eccentric inner hole of described movable back-up ring determines according to the thermal walking of described inner core.
5. the thermopair hermetically-sealed construction according to any one of claims 1 to 3, it is characterized in that: described cylinder shell adopts general structural steel to make, described cylindrical shell insulation bushing and described insulation bushing all use high temperature resistant alumina silicate fibre cloth, and described inner core adopts high-temperature alloy steel to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420604203.7U CN204255512U (en) | 2014-10-17 | 2014-10-17 | Thermopair hermetically-sealed construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420604203.7U CN204255512U (en) | 2014-10-17 | 2014-10-17 | Thermopair hermetically-sealed construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204255512U true CN204255512U (en) | 2015-04-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420604203.7U Expired - Fee Related CN204255512U (en) | 2014-10-17 | 2014-10-17 | Thermopair hermetically-sealed construction |
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| CN (1) | CN204255512U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105403243A (en) * | 2015-08-25 | 2016-03-16 | 中国人民解放军国防科学技术大学 | Temperature and pressing measuring device on water-cooling wall surface of combustion chamber and machining method thereof |
| CN107063491A (en) * | 2017-05-05 | 2017-08-18 | 淮北矿业股份有限公司 | A kind of coke oven temperature measuring device |
| CN107606937A (en) * | 2017-09-07 | 2018-01-19 | 韶关市欧莱高新材料有限公司 | A kind of high-temperature atmosphere sintering furnace of the sealed thermocouple of band |
-
2014
- 2014-10-17 CN CN201420604203.7U patent/CN204255512U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105403243A (en) * | 2015-08-25 | 2016-03-16 | 中国人民解放军国防科学技术大学 | Temperature and pressing measuring device on water-cooling wall surface of combustion chamber and machining method thereof |
| CN105403243B (en) * | 2015-08-25 | 2020-08-11 | 中国人民解放军国防科技大学 | Temperature and pressure measuring device on water-cooled wall surface of combustion chamber and processing method thereof |
| CN107063491A (en) * | 2017-05-05 | 2017-08-18 | 淮北矿业股份有限公司 | A kind of coke oven temperature measuring device |
| CN107606937A (en) * | 2017-09-07 | 2018-01-19 | 韶关市欧莱高新材料有限公司 | A kind of high-temperature atmosphere sintering furnace of the sealed thermocouple of band |
| CN107606937B (en) * | 2017-09-07 | 2023-05-09 | 广东欧莱高新材料股份有限公司 | High-temperature atmosphere sintering furnace with sealed thermocouple |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150408 Termination date: 20151017 |
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| EXPY | Termination of patent right or utility model |