CN204101197U - A kind of self-centering temperature detecting resistance - Google Patents
A kind of self-centering temperature detecting resistance Download PDFInfo
- Publication number
- CN204101197U CN204101197U CN201420507609.3U CN201420507609U CN204101197U CN 204101197 U CN204101197 U CN 204101197U CN 201420507609 U CN201420507609 U CN 201420507609U CN 204101197 U CN204101197 U CN 204101197U
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- Prior art keywords
- protective pipe
- outside protective
- temperature detecting
- locating piece
- detecting resistance
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000009413 insulation Methods 0.000 claims abstract description 79
- 230000001681 protective effect Effects 0.000 claims abstract description 79
- 229910052573 porcelain Inorganic materials 0.000 claims description 14
- 239000011324 bead Substances 0.000 claims description 7
- 238000005266 casting Methods 0.000 claims description 6
- 239000003292 glue Substances 0.000 claims description 6
- 239000004593 Epoxy Substances 0.000 claims description 5
- 239000004033 plastic Substances 0.000 claims description 5
- 229920002050 silicone resin Polymers 0.000 claims description 5
- 230000000694 effects Effects 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000002421 anti-septic effect Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 238000009529 body temperature measurement Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 230000004323 axial length Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000010977 unit operation Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
The utility model discloses a kind of self-centering temperature detecting resistance; comprise terminal box, fixture, outside protective pipe, interior protection tube and be positioned at the temperature element of protection tube; temperature element runs through interior protection tube, outside protective pipe and fixture successively and connects with terminal box; the outer affixed outside protective pipe of interior protection tube; affixed fixture and terminal box on outside protective pipe; on described outside protective pipe, at least cover has an insulation locating piece, and described insulation locating piece is positioned in the middle part of outside protective pipe.The utility model is by changing the structure of temperature detecting resistance, and temperature detecting resistance inserts in measured piece thermometer hole and can automatically locate, and improves the right alignment of temperature detecting resistance and thermometer hole, effectively prevent thermometric gradient, thus make thermometric accuracy higher.
Description
Technical field
The utility model relates to a kind of temperature measuring equipment, is specifically related to a kind of self-centering temperature detecting resistance automatically locating measured piece thermometer hole.
Background technology
The application of hydrogenerator is quite extensive, and Cooling Ways of Hydro-generator generally adopts sealing and circulating Air flow.The mounting structure form of hydrogenerator is determined by the pattern of the hydraulic turbine usually.Mainly contain two profiles formula: horizontal type structure and vertical structure.Usual low capacity hydrogenerator adopts horizontal type structure, and medium-sized hydrogenerator adopts vertical or horizontal type structure, and large capacity hydroelectric generator adopts vertical structure.The turbine-generator units application of vertical structure is comparatively extensive, and vertical hydropower generator is driven by mixed-flow or axial flow hydraulic turbine usually.Vertical structure can be divided into suspension type and umbrella-type again.What generator thrust bearing was positioned at rotor top is referred to as suspension type, and what be positioned at rotor bottom is referred to as umbrella-type.Water turbine set adopts two or three bearings usually.Its axial length of the structure of two bearings is short, compact conformation, and mounting and adjusting is convenient.But when its combined critical speed can not meet the demands or bearing load is larger, this needs employing three bearing arrangement.
Often guide bearing and thrust bearing segment can be used in hydrogenerator.Guide bearing is a kind of radial mechanical imbalance power for bearing eccentric magnetic pull and unit rotating part, makes the parts that unit axis swings within the scope of specified value.When unit operation, between guide bearing and rotating shaft, between thrust bearing shoe valve and thrust collar, friction can produce very high temperature, and what usually adopt the mensuration of guide bearing and thrust bearing segment temperature is plug-in type temperature detecting resistance.
When prior art carries out temperature measuring to the measured piece such as guide bearing, thrust bearing segment, temperature detecting resistance inserts in the thermometer hole of measured piece, due to the manufacturing accuracy of thermometer hole, as right alignment, verticality etc. are not quite similar, temperature detecting resistance is just difficult to insertion or insertion retrodeviates from theoretical position larger, the each spot temperature of measured piece recorded through temperature detecting resistance is different, produces thermometric gradient, causes thermometric inaccurate.
Publication number is CN 202305043U, and publication date is the bush temperature detecting thermal resistance that the Chinese patent literature of on 07 04th, 2012 discloses a kind of anti-shaft voltage, shaft current, and the structure of its temperature thermocouple comprises: bar-shaped armoured thermal resistance and thermal resistance fixture; It is characterized in that: its thermal resistance fixture is the fixture adopting nylon rod processing; High temperature resistant, oil resistant, anti-corrosion insulation thermal conductive material layer is scribbled at the position that armoured thermal resistance contacts with bearing shell.The thermometer hole accuracy requirement of thermometric thermal resistance disclosed in this patent documentation to measured piece is higher, thermometric thermal resistance cannot realize self-align in the thermometer hole of measured piece, thermometric thermal resistance easily tilts in thermometer hole, forms thermometric gradient, causes thermometric accuracy lower.
Utility model content
For solving the problems of the technologies described above, the utility model proposes a kind of self-centering temperature detecting resistance, the utility model is by changing the structure of temperature detecting resistance, temperature detecting resistance inserts in measured piece thermometer hole and can automatically locate, improve the right alignment of temperature detecting resistance and thermometer hole, effectively prevent thermometric gradient, thus make thermometric accuracy higher.
The technical solution adopted in the utility model is:
A kind of self-centering temperature detecting resistance; comprise terminal box, fixture, outside protective pipe, interior protection tube and be positioned at the temperature element of protection tube; temperature element runs through interior protection tube, outside protective pipe and fixture successively and connects with terminal box; the outer affixed outside protective pipe of interior protection tube; affixed fixture and terminal box on outside protective pipe; it is characterized in that: on described outside protective pipe, at least cover has an insulation locating piece, and described insulation locating piece is positioned in the middle part of outside protective pipe.
Described insulation locating piece is two, and an insulation locating piece is positioned in the middle part of outside protective pipe, and another insulation locating piece is positioned at outside protective pipe bottom.
Described insulation locating piece is three, and an insulation locating piece is positioned in the middle part of outside protective pipe, and an insulation locating piece is positioned at outside protective pipe bottom, and an insulation locating piece is positioned at outside protective pipe top.
Described insulation locating piece is rubber ring, plastic hoop or porcelain ring.
Insulation porcelain bead is had by casting glue embedding in described interior protection tube.
Described outside protective pipe tube wall is coated with oil resistance anticorrosion insulation course.
Described oil resistance anticorrosion insulation course is epoxy modified silicone resin.
The beneficial effects of the utility model are mainly manifested in the following aspects:
One, the utility model at least overlaps on the outside protective pipe of temperature detecting resistance an insulation locating piece; temperature detecting resistance and insulation locating piece together insert in measured piece thermometer hole; insulation locating piece can be good at and thermometer hole contact internal walls; temperature detecting resistance is located automatically; insulation locating piece is positioned in the middle part of outside protective pipe; the upper and lower two ends of temperature detecting resistance can be taken into account; prevent temperature detecting resistance from offseting in vertical direction; improve the right alignment of temperature detecting resistance and thermometer hole; effectively prevent thermometric gradient, thus make thermometric accuracy higher.
Two, the locating piece that insulate is two, an insulation locating piece is positioned in the middle part of outside protective pipe, another insulation locating piece is positioned at outside protective pipe bottom, on the one hand, the insulation locating piece of two some positions can make temperature detecting resistance and thermometer hole contact internal walls more tight, improves the automatic positioning effect of temperature detecting resistance further; On the other hand, two lockings of insulation locating piece on temperature detecting resistance two difference positions can improve the right alignment of whole temperature detecting resistance and measured piece thermometer hole further, prevent the appearance of thermometric gradient, thus improve temperature measurement accuracy.
Three, the locating piece that insulate is three; an insulation locating piece is positioned in the middle part of outside protective pipe; an insulation locating piece is positioned at outside protective pipe bottom; an insulation locating piece is positioned at outside protective pipe top; by choosing three points on temperature detecting resistance, temperature detecting resistance can be made to locate rapidly in measured piece thermometer hole, the right alignment of whole temperature detecting resistance and thermometer hole is best; thermometric is the most accurate, and on thermometric accuracy and production cost, achieves one well balance.
Four, the locating piece that insulate is rubber ring, plastic hoop or porcelain ring, and not only insulation effect is good, and can produce good friction force with measured piece thermometer hole inwall, improves the self-align effect of whole temperature detecting resistance.
Five, there is insulation porcelain bead by casting glue embedding in interior protection tube, the overall construction intensity of interior protection tube can be improved, thus the counter-bending power of whole temperature detecting resistance is strengthened.
Six, outside protective pipe tube wall is coated with epoxy modified silicone resin oil resistance anticorrosion insulation course, makes whole temperature detecting resistance have good oil resistant, antiseptic effect, extend the serviceable life of temperature detecting resistance.
Accompanying drawing explanation
Below in conjunction with specification drawings and specific embodiments, the utility model is described in further detail, wherein:
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of the utility model embodiment 2;
Fig. 3 is the structural representation that the utility model embodiment 3 self-centering temperature detecting resistance inserts measured piece thermometer hole;
Fig. 4 is the structural representation of the utility model embodiment 4;
Fig. 5 is the structural representation of the utility model embodiment 5;
Mark in figure: 1, terminal box, 2, fixture, 3, outside protective pipe, 4, interior protection tube, 5, temperature element, 6, insulation locating piece, 7, insulation porcelain bead, 8, oil resistance anticorrosion insulation course.
Embodiment
Embodiment 1
See Fig. 1; a kind of self-centering temperature detecting resistance; comprise terminal box 1, fixture 2, outside protective pipe 3, interior protection tube 4 and be positioned at the temperature element 5 of protection tube 4; temperature element 5 runs through interior protection tube 4, outside protective pipe 3 and fixture 2 successively and connects with terminal box 1; the outer affixed outside protective pipe 3 of interior protection tube 4; affixed fixture 2 and terminal box 1 on outside protective pipe 3, on described outside protective pipe 3, cover has an insulation locating piece 6, and described insulation locating piece 6 is positioned in the middle part of outside protective pipe 3.
The present embodiment is the most basic embodiment; structure is simple; when thermometric is carried out to measured piece; temperature detecting resistance and insulation locating piece 6 together insert in measured piece thermometer hole; insulation locating piece 6 can be good at and thermometer hole contact internal walls; temperature detecting resistance is located automatically; insulation locating piece 6 is positioned in the middle part of outside protective pipe 3; the upper and lower two ends of temperature detecting resistance can be taken into account; prevent temperature detecting resistance from offseting in vertical direction; improve the right alignment of temperature detecting resistance and thermometer hole, effectively prevent thermometric gradient, thus make thermometric accuracy higher.
Embodiment 2
See Fig. 2; a kind of self-centering temperature detecting resistance; comprise terminal box 1, fixture 2, outside protective pipe 3, interior protection tube 4 and be positioned at the temperature element 5 of protection tube 4; temperature element 5 runs through interior protection tube 4, outside protective pipe 3 and fixture 2 successively and connects with terminal box 1; the outer affixed outside protective pipe 3 of interior protection tube 4; affixed fixture 2 and terminal box 1 on outside protective pipe 3; on described outside protective pipe 3, cover has two insulation locating pieces 6; an insulation locating piece 6 is positioned in the middle part of outside protective pipe 3, and another insulation locating piece 6 is positioned at outside protective pipe 3 bottom.
The present embodiment is a better embodiment, and on the one hand, the insulation locating piece 6 of two some positions can make temperature detecting resistance and thermometer hole contact internal walls more tight, improves the automatic positioning effect of temperature detecting resistance further; On the other hand, two lockings of insulation locating piece 6 on temperature detecting resistance two difference positions can improve the right alignment of whole temperature detecting resistance and measured piece thermometer hole further, prevent the appearance of thermometric gradient, thus improve temperature measurement accuracy.
Embodiment 3
See Fig. 3, a kind of self-centering temperature detecting resistance, comprise terminal box 1, fixture 2, outside protective pipe 3, interior protection tube 4 and the temperature element 5 being positioned at protection tube 4, temperature element 5 runs through interior protection tube 4 successively, outside protective pipe 3 and fixture 2 also connect with terminal box 1, the outer affixed outside protective pipe 3 of interior protection tube 4, affixed fixture 2 and terminal box 1 on outside protective pipe 3, on described outside protective pipe 3, cover has three insulation locating pieces 6, an insulation locating piece 6 is positioned in the middle part of outside protective pipe 3, an insulation locating piece 6 is positioned at outside protective pipe 3 bottom, an insulation locating piece 6 is positioned at outside protective pipe 3 top.Described insulation locating piece 6 is rubber ring, plastic hoop or porcelain ring.
The present embodiment is another better embodiment, by choosing three points on temperature detecting resistance, temperature detecting resistance can be made to locate rapidly in measured piece thermometer hole, the right alignment of whole temperature detecting resistance and thermometer hole is best, thermometric is the most accurate, and on thermometric accuracy and production cost, achieves one well balance.
Embodiment 4
See Fig. 4, a kind of self-centering temperature detecting resistance, comprise terminal box 1, fixture 2, outside protective pipe 3, interior protection tube 4 and the temperature element 5 being positioned at protection tube 4, temperature element 5 runs through interior protection tube 4 successively, outside protective pipe 3 and fixture 2 also connect with terminal box 1, the outer affixed outside protective pipe 3 of interior protection tube 4, affixed fixture 2 and terminal box 1 on outside protective pipe 3, on described outside protective pipe 3, cover has three insulation locating pieces 6, an insulation locating piece 6 is positioned in the middle part of outside protective pipe 3, an insulation locating piece 6 is positioned at outside protective pipe 3 bottom, an insulation locating piece 6 is positioned at outside protective pipe 3 top.Described insulation locating piece 6 is rubber ring or porcelain ring.
Insulation porcelain bead 7 is had by casting glue embedding in described interior protection tube 4.
The present embodiment is another better embodiment, and insulation locating piece 6 is rubber ring or porcelain ring, and not only insulation effect is good, and can produce good friction force with measured piece thermometer hole inwall, improves the self-align effect of whole temperature detecting resistance; There is insulation porcelain bead 7 by casting glue embedding in interior protection tube 4, the overall construction intensity of interior protection tube 4 can be improved, thus the counter-bending power of whole temperature detecting resistance is strengthened.
Embodiment 5
See Fig. 5, a kind of self-centering temperature detecting resistance, comprise terminal box 1, fixture 2, outside protective pipe 3, interior protection tube 4 and the temperature element 5 being positioned at protection tube 4, temperature element 5 runs through interior protection tube 4 successively, outside protective pipe 3 and fixture 2 also connect with terminal box 1, the outer affixed outside protective pipe 3 of interior protection tube 4, affixed fixture 2 and terminal box 1 on outside protective pipe 3, on described outside protective pipe 3, cover has three insulation locating pieces 6, an insulation locating piece 6 is positioned in the middle part of outside protective pipe 3, an insulation locating piece 6 is positioned at outside protective pipe 3 bottom, an insulation locating piece 6 is positioned at outside protective pipe 3 top.Described insulation locating piece 6 is rubber ring, plastic hoop or porcelain ring.
Insulation porcelain bead 7 is had by casting glue embedding in described interior protection tube 4.Described outside protective pipe 3 tube wall is coated with oil resistance anticorrosion insulation course 8.
Described oil resistance anticorrosion insulation course 8 is epoxy modified silicone resin.
The present embodiment is preferred forms, outside protective pipe 3 tube wall is coated with epoxy modified silicone resin oil resistance anticorrosion insulation course 8, makes whole temperature detecting resistance have good oil resistant, antiseptic effect, extends the serviceable life of temperature detecting resistance.
The utility model is not limited to above-described embodiment, and according to the description of above-described embodiment, those of ordinary skill in the art also can make some apparent changes to the utility model, but these changes all should fall within the protection domain of the utility model claim.
Claims (7)
1. a self-centering temperature detecting resistance, comprise terminal box (1), fixture (2), outside protective pipe (3), interior protection tube (4) and be positioned at the temperature element (5) of protection tube (4), temperature element (5) runs through interior protection tube (4) successively, outside protective pipe (3) and fixture (2) also connect with terminal box (1), interior protection tube (4) is affixed outside protective pipe (3) outward, the upper affixed fixture (2) of outside protective pipe (3) and terminal box (1), it is characterized in that: on described outside protective pipe (3), at least cover has an insulation locating piece (6), described insulation locating piece (6) is positioned at outside protective pipe (3) middle part.
2. a kind of self-centering temperature detecting resistance according to claim 1; it is characterized in that: described insulation locating piece (6) is two; an insulation locating piece (6) is positioned at outside protective pipe (3) middle part, and another insulation locating piece (6) is positioned at outside protective pipe (3) bottom.
3. a kind of self-centering temperature detecting resistance according to claim 1; it is characterized in that: described insulation locating piece (6) is three; an insulation locating piece (6) is positioned at outside protective pipe (3) middle part; an insulation locating piece (6) is positioned at outside protective pipe (3) bottom, and an insulation locating piece (6) is positioned at outside protective pipe (3) top.
4. a kind of self-centering temperature detecting resistance according to claim 1-3 any one, is characterized in that: described insulation locating piece (6) is rubber ring, plastic hoop or porcelain ring.
5. a kind of self-centering temperature detecting resistance according to claim 4, is characterized in that: have insulation porcelain bead (7) by casting glue embedding in described interior protection tube (4).
6. a kind of self-centering temperature detecting resistance according to claim 5, is characterized in that: described outside protective pipe (3) tube wall is coated with oil resistance anticorrosion insulation course (8).
7. a kind of self-centering temperature detecting resistance according to claim 6, is characterized in that: described oil resistance anticorrosion insulation course (8) is epoxy modified silicone resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420507609.3U CN204101197U (en) | 2014-09-04 | 2014-09-04 | A kind of self-centering temperature detecting resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420507609.3U CN204101197U (en) | 2014-09-04 | 2014-09-04 | A kind of self-centering temperature detecting resistance |
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| Publication Number | Publication Date |
|---|---|
| CN204101197U true CN204101197U (en) | 2015-01-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420507609.3U Expired - Lifetime CN204101197U (en) | 2014-09-04 | 2014-09-04 | A kind of self-centering temperature detecting resistance |
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| Country | Link |
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| CN (1) | CN204101197U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105570655A (en) * | 2016-02-22 | 2016-05-11 | 邯钢集团邯宝钢铁有限公司 | Cold-rolling working roller bearing online temperature measuring device |
| CN109443570A (en) * | 2018-12-18 | 2019-03-08 | 海盐县秦山热工仪表厂 | A kind of rotatable absorption type temperature thermocouple |
-
2014
- 2014-09-04 CN CN201420507609.3U patent/CN204101197U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105570655A (en) * | 2016-02-22 | 2016-05-11 | 邯钢集团邯宝钢铁有限公司 | Cold-rolling working roller bearing online temperature measuring device |
| CN109443570A (en) * | 2018-12-18 | 2019-03-08 | 海盐县秦山热工仪表厂 | A kind of rotatable absorption type temperature thermocouple |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20150114 |