CN201680929U - Field core type calibration furnace for oil temperature indicator - Google Patents
Field core type calibration furnace for oil temperature indicator Download PDFInfo
- Publication number
- CN201680929U CN201680929U CN2010201533994U CN201020153399U CN201680929U CN 201680929 U CN201680929 U CN 201680929U CN 2010201533994 U CN2010201533994 U CN 2010201533994U CN 201020153399 U CN201020153399 U CN 201020153399U CN 201680929 U CN201680929 U CN 201680929U
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- sleeve
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- thermometer
- furnace body
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Abstract
The utility model relates to a field core type calibration furnace for oil temperature indicators, which is characterized in that phi-3 non-inductance armored heaters are respectively wound at the mouth and the bottom of a furnace body, the side of each heater is provided with a temperature control thermistor thermometer and clings to the surface of the furnace body, a metering hole which is a through hole is arranged in the furnace body, a ring is fixed at the bottom of the metering hole, the outer diameter of the ring is consistent with the furnace body, the diameter of the inner bore of the ring is smaller than 8mm, a pressure type thermometer to be tested is arranged in a sleeve, the outer diameter of the sleeve is 1mm smaller than the size of the metering hole of the furnace body, and the sleeve is inserted in the metering hole. The heaters are directly mounted on a core made of high thermal-conductive materials, thereby achieving fast temperature rise, enough long temperature field and fine temperature stability to guarantee measurement precision. As the pressure type thermometer is disposed in the sleeve with the same outer diameter but different inner bores, the measurement efficiency can be increased. In addition, the calibration furnace can be cooled fast after usage.
Description
Technical field
The utility model relates to a kind of pick up calibration device, and is particularly a kind of on-the-spot with dried trap formula pasta thermometer calibration stove.
Background technology
For adapting to many survey frequencies of station height that large-scale electric power transformer oil surface temperature is measured, need a kind of in light weight, portable, intensification constant temperature fast, rapid, the warm head of cooling and the high dried trap formula verification stove of control temperature.
Summary of the invention
The utility model is a problem of measuring the verification stove that needs to be fit to on-the-spot test at existing electric power transformer oil surface temperature, has proposed a kind of on-the-spotly with dried trap formula pasta thermometer calibration stove, and easy to carry, intensification constant temperature cooling rate is fast, the temperature measurement accuracy height.
The technical solution of the utility model is: a kind of on-the-spot with dried trap formula pasta thermometer calibration stove, comprise body of heater, gaging hole, two well heaters, two temperature control thermal resistance thermometers, ring bodies, sleeve, each is close around one group of Φ, 3 no-induction sheathed heaters for the fire door of body of heater and furnace bottom, a temperature control thermal resistance thermometer is respectively arranged on the well heater limit and be close to the body of heater surface, gaging hole is arranged in the body of heater, gaging hole is a through hole, a ring bodies is fixed in the bottom of gaging hole, external diameter is consistent with body of heater, and the ring bodies diameter of bore is less than through hole 8mm, and tested pressure-type thermometer places in the sleeve, its external diameter of sleeve is than the little 1mm of gaging hole size of body of heater, and sleeve inserts gaging hole.
Described body of heater and sleeve are aluminum alloy materials.。
The beneficial effects of the utility model are: the utility model is on-the-spot with dried trap formula pasta thermometer calibration stove, the trap body that well heater directly is processed into around highly heat-conductive material, and programming rate is fast, a temperature long enough, temperature stability is good to guarantee measuring accuracy; Pressure-type thermometer adopts same external diameter but the different sleeve of endoporus can improve testing efficiency; Use the back cooling rate fast.
Description of drawings
Fig. 1 is that the utility model is on-the-spot with dried trap formula pasta thermometer calibration furnace structure synoptic diagram.
Embodiment
Structural representation as shown in Figure 1, comprise body of heater 2, gaging hole 3, well heater 1,5, temperature control thermal resistance thermometer 4,8, ring bodies 6, sleeve 7, the length of body of heater 2 are that pressure-type thermometer 9 insertion depths add 50mm, and each is close around one group of Φ, 3 no-induction sheathed heaters 1 and 5 for body of heater 2 fire doors and furnace bottom, a diaphragm type pt100 temperature control thermal resistance thermometer 4 is respectively arranged on the well heater limit, 8, be close to body of heater 2 surfaces, be used to control body of heater 2 temperature, gaging hole 3 is arranged in the body of heater 2, gaging hole 3 is a through hole, its diameter is that pressure-type thermometer 9 tested original paper diameters add 10mm, and a ring bodies 6 is fixed in the bottom of gaging hole 3, and its thickness is 10mm, external diameter is consistent with body of heater 2, and ring bodies 6 diameter of bores are less than through hole 8mm.Tested pressure-type thermometer 9 places a sleeve 7 made from body of heater 2 same material, and its external diameter is than the little 1mm of gaging hole 3 sizes of body of heater 2, and length is dark consistent with gaging hole 3.Can provide a plurality of sleeves according to user's request.Sleeve 7 bottoms connect the heat-barrier material of 25mm, and its external diameter is consistent with sleeve.Body of heater 2 heat insulating material for external are that its unit weight of green material is 128kg/m
3, heat resisting temperature is more than 1000 ℃.
Earlier thermometer is inserted in its socket wrench specially adapted for it during verification, sleeve 7 is inserted gaging holes 3 bottoms, heat up then, constant temperature, measurement.After measuring end, after temperature sensor and sleeve taking-up, start fan and carry out air-cooled.
Dried trap furnace body 2 and test cartridge 7 are aluminum alloy materials, and the heat resisting temperature of heat-barrier material is greater than 250 ℃.The gaging hole external diameter is Φ 50mm, and the sleeve endoporus is of a size of Φ 15 * 150mm.
Technical feature:
50～160 ℃ of serviceability temperature scopes.
Temperature-controlled precision ± 0.05 ℃.
Temperature is 100mm ± 0.1 ℃ upwards from gaging hole bottom.
Trap mouth size Φ 25 * 150mm.
Overall dimensions 380 * 240 * 360mm.
Thermal source is an electric heating: power 0.6KW.
Power supply 220V 50Hz.
Programming rate: be raised to 150 ℃ of required times less than 20min from room temperature.Cooling rate is less than 30min.
Claims (2)
- One kind on-the-spot with dried trap formula pasta thermometer calibration stove, it is characterized in that, comprise body of heater, gaging hole, two well heaters, two temperature control thermal resistance thermometers, ring bodies, sleeve, each is close around one group of Φ, 3 no-induction sheathed heaters for the fire door of body of heater and furnace bottom, a temperature control thermal resistance thermometer is respectively arranged on the well heater limit and be close to the body of heater surface, gaging hole is arranged in the body of heater, gaging hole is a through hole, and a ring bodies is fixed in the bottom of gaging hole, and external diameter is consistent with body of heater, the ring bodies diameter of bore is less than through hole 8mm, tested pressure-type thermometer places in the sleeve, and its external diameter of sleeve is than the little 1mm of gaging hole size of body of heater, and sleeve inserts gaging hole.
- 2. described on-the-spot with dried trap formula pasta thermometer calibration stove according to claim 1, it is characterized in that described body of heater and sleeve are aluminum alloy materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201533994U CN201680929U (en) | 2010-04-08 | 2010-04-08 | Field core type calibration furnace for oil temperature indicator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201533994U CN201680929U (en) | 2010-04-08 | 2010-04-08 | Field core type calibration furnace for oil temperature indicator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201680929U true CN201680929U (en) | 2010-12-22 |
Family
ID=43345969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201533994U Expired - Fee Related CN201680929U (en) | 2010-04-08 | 2010-04-08 | Field core type calibration furnace for oil temperature indicator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201680929U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102252782A (en) * | 2011-05-10 | 2011-11-23 | 上海量值测控仪器科技有限公司 | Special temperature-reduction accelerator for horizontal type thermocouple testing furnace |
| CN103834776A (en) * | 2014-02-28 | 2014-06-04 | 北京首钢股份有限公司 | Method for online calibration of fixed type pyrometers of continuous type annealing furnace |
| CN108680285A (en) * | 2018-08-14 | 2018-10-19 | 上海市计量测试技术研究院 | The calibration method of short branch electric thermo-couple temperature verification stove and short branch thermocouple |
-
2010
- 2010-04-08 CN CN2010201533994U patent/CN201680929U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102252782A (en) * | 2011-05-10 | 2011-11-23 | 上海量值测控仪器科技有限公司 | Special temperature-reduction accelerator for horizontal type thermocouple testing furnace |
| CN102252782B (en) * | 2011-05-10 | 2012-09-05 | 上海量值测控仪器科技有限公司 | Special temperature-reduction accelerator for horizontal type thermocouple testing furnace |
| CN103834776A (en) * | 2014-02-28 | 2014-06-04 | 北京首钢股份有限公司 | Method for online calibration of fixed type pyrometers of continuous type annealing furnace |
| CN108680285A (en) * | 2018-08-14 | 2018-10-19 | 上海市计量测试技术研究院 | The calibration method of short branch electric thermo-couple temperature verification stove and short branch thermocouple |
| CN108680285B (en) * | 2018-08-14 | 2024-06-07 | 上海市计量测试技术研究院 | Short thermocouple temperature calibration furnace and short thermocouple calibration method |
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Legal Events
| 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101222 Termination date: 20170408 |