CN203100935U - Long rod platinum resistance thermometer calibrating device - Google Patents
Long rod platinum resistance thermometer calibrating device Download PDFInfo
- Publication number
- CN203100935U CN203100935U CN 201320044592 CN201320044592U CN203100935U CN 203100935 U CN203100935 U CN 203100935U CN 201320044592 CN201320044592 CN 201320044592 CN 201320044592 U CN201320044592 U CN 201320044592U CN 203100935 U CN203100935 U CN 203100935U
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- platinum
- resistance thermometer
- device housing
- long
- rod
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Abstract
The utility model discloses a long rod platinum resistance thermometer calibrating device comprising a calibration device housing, a circulating bath component, a temperature measuring instrument, and a computer, wherein a number of platinum resistance thermometer sleeve tubes are uniformly arranged in a cavity of the calibration device housing, one ends of the platinum resistance thermometer sleeve tubes are communicated with the outside, the other ends are welded in the cavity of the calibration device housing, a number of precision platinum resistance thermometers are inserted in the cavity of the calibration device housing, the precision platinum resistance thermometers are connected with the temperature measuring instrument, the calibration device housing is provide with a circulation medium inlet opening and a circulation medium outlet opening which are connected with the circulating bath component, and the circulating bath component and the temperature measuring instrument are connected with the computer. The long rod platinum resistance thermometer calibrating device is characterized in that the calibrating device can be used in a simple manner by just inserting a long rod platinum resistor into a temperature measurement hole, the calibrated temperature of the platinum resistor is obtained by averaging temperatures read on three precision platinum resistance thermometers, and therefore error is reduced, and precision of a system is increased.
Description
[technical field]
The utility model relates to a kind of calibrating installation, particularly a kind of long-rod platinum resistance thermometer calibration device.
[background technology]
Long-rod platinum resistance is one of important instrument of condenser efficiency monitoring in the power station, be mainly used to measure condenser seawer outlet temperature, this long-rod platinum resistance comprises three temperature-sensing elements evenly in pipe box, its length can reach 3000mm, thermometer pipe box external diameter is about 6mm, and experiment counts for much the condensator outlet ocean temperature to condenser efficiency, and therefore the calibration operation to long-rod platinum resistance is also particularly necessary.Through investigating the calibration equipment that at present domestic each big metering institute does not all have this long-rod platinum resistance.
[utility model content]
The purpose of this utility model is to provide a kind of quick, accurate, stable long-rod platinum resistance thermometer calibration device, to solve the problems of the technologies described above.
The purpose of this utility model is achieved through the following technical solutions:
A kind of long-rod platinum resistance thermometer calibration device comprises caliberating device housing, circulation bath, temperature measurer and computing machine; In the cavity of caliberating device housing, evenly be provided with some platinum-resistance thermometer sleeve pipes, platinum-resistance thermometer sleeve pipe one end and extraneous UNICOM, the other end is welded on the inside cavity of caliberating device housing; Be inserted with some accurate platinum-resistance thermometers in the cavity of caliberating device housing; Described some accurate platinum-resistance thermometers connect temperature measurer; The caliberating device housing is provided with circulatory mediator inlet and circulatory mediator outlet; Outlet is connected the circulation bath to the circulatory mediator inlet with circulatory mediator; Described circulation bath is connected computing machine with temperature measurer.
The utility model further improves and is: the caliberating device housing is cylindrical, and it comprises by the internal layer that sets gradually outside interior, heat-insulation layer and skin; The thickness of heat-insulation layer is not less than 10mm; The cavity of caliberating device housing has described internal layer around forming.
The utility model further improves and is: the length of platinum-resistance thermometer sleeve pipe is 3000mm, and internal diameter is 10mm.
The utility model further improves and is: the material of platinum-resistance thermometer sleeve pipe is a red copper.
The utility model further improves and is: the bottom of caliberating device housing is provided with two adjustable supporters.
The utility model further improves and is: the circulatory mediator inlet is arranged at caliberating device housing one end bottom, and the circulatory mediator outlet is arranged at caliberating device housing other end top.
The utility model further improves and is: tested long-rod platinum resistance thermometer inserts in the platinum-resistance thermometer sleeve pipe, and described tested long-rod platinum resistance thermometer connects described temperature measurer.
The utility model further improves and is: be filled with silicone oil or heat-conducting silicone grease between platinum-resistance thermometer sleeve pipe and the tested long-rod platinum resistance thermometer.
The utility model further improves and is: described some accurate platinum-resistance thermometers comprise the first accurate platinum-resistance thermometer, the second accurate platinum-resistance thermometer and the 3rd accurate platinum-resistance thermometer; The first accurate platinum-resistance thermometer, the second accurate platinum-resistance thermometer and the 3rd accurate platinum-resistance thermometer are arranged in circulatory mediator porch, circulatory mediator exit and the middle part of caliberating device housing respectively.
The utlity model has following advantage and beneficial effect: the utility model has solved the problem that long-rod platinum resistance is difficult to demarcate.The stability of existing calibration system is greatly about 0.1 ℃, and complicated operation, and each timing signal needs handle assembly to take apart, also needs the testing fixture sealing when reusing.And along with variation of temperature, sealing tends to reveal, and has the problem of sealing difference.Stability of the present utility model is demarcated and is used simply within 0.05 ℃, only long-rod platinum resistance need be inserted in the thermometer hole.Thermometric is to be undertaken by the accurate platinum-resistance thermometer that is arranged in three positions, can not only detected temperatures, and stability that can also the pick-up unit temperature field.The temperature that platinum resistance is demarcated is the temperature of three accurate platinum-resistance thermometers after average, has reduced error, has increased the precision of system.In addition, circulating fluid does not directly contact with platinum resistance, has reduced the contaminated possibility of platinum resistance, has improved the reliability of system.Because circulation is to carry out in airtight container fully, reduce contacting with external environment, increase the life-span that circulating fluid uses.The utility model can improve efficient and the precision that platinum resistance is demarcated, and demarcates in conjunction with the robotization of computer realization platinum resistance device.
[description of drawings]
Fig. 1 is the structural representation of the utility model long-rod platinum resistance thermometer calibration device;
Fig. 2 is the schematic cross-section of caliberating device housing.
[embodiment]
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
See also Figure 1 and Figure 2, a kind of long-rod platinum resistance thermometer calibration of the utility model device comprises caliberating device housing 5, circulation bath 7, temperature measurer 8 and computing machine.
Caliberating device housing 5 is cylindrical, and it comprises by the internal layer 51 that sets gradually outside interior, heat-insulation layer 52 and outer 53; The coefficient of heat conductivity of the insulation material of heat-insulation layer 52 should be low as far as possible, and at utmost to reduce thermal loss, the thickness of heat-insulation layer 52 is not less than 10mm; Heat-insulation layer 52 can adopt expanded material, makes external environment as far as possible little to the temperature disturbance of inside.In the cavity that the internal layer 51 of caliberating device housing 5 centers on, evenly be provided with four platinum-resistance thermometer sleeve pipe 3(and can adjust quantity) according to the exact arrangement effect, platinum-resistance thermometer sleeve pipe 3 one ends and extraneous UNICOM, can be used to pour into silicone oil and insert platinum resistance, the dead inside cavity of other end weldering at caliberating device housing 5.Because of the length specification of tested long-rod platinum resistance thermometer is 2.5m, 2.8m and 2.9m, resistance body external diameter is 6mm, and the length that therefore platinum-resistance thermometer sleeve pipe 3 is set is that 3000mm, internal diameter are 10mm.The material of internal layer 51 is a stainless steel, inner wall smooth.
Platinum-resistance thermometer sleeve pipe 3 adopts the red copper material, and internal diameter 10mm, concrete external diameter need consider to determine behind the bearing capacity.Smooth in the platinum-resistance thermometer sleeve pipe 3, do not have impurity, with anti-scratch platinum resistance, should be in pipe box in concrete the use filling silicone oil, or on tested long-rod platinum resistance thermometer, be coated with heat-conducting silicone grease, to reach best heat exchange effect.
The bottom of caliberating device housing 5 is provided with two adjustable supporters 6, and adjustable supporter 6 is a stainless steel; Before carrying out 9 calibrations of long-rod platinum resistance thermometer, should regulate the height of two adjustable supporters 6, make tested long-rod platinum resistance thermometer 9 insertion end positions than other end height, so that overlap filling silicone oil in 3 to tested platinum-resistance thermometer.
Be inserted with first accurate platinum-resistance thermometer 21, second accurate platinum-resistance thermometer 22 and the 3rd accurate platinum-resistance thermometer 23 in the cavity of caliberating device housing 5; These three accurate platinum-resistance thermometers are arranged in circulatory mediator porch, circulatory mediator exit and the middle part of caliberating device housing 5 respectively.Three are used for monitoring temperature and standard platinum resistance thermometer as a comparison and satisfy " JJG160-2007 standard platinum resistance thermometer vertification regulation " on the cavity of caliberating device housing 5; Wherein the insertion depth of the accurate platinum-resistance thermometer of two contrast usefulness is advisable with the cavity integral central of caliberating device housing 5.First accurate platinum-resistance thermometer 21, second accurate platinum-resistance thermometer the 22, the 3rd accurate platinum-resistance thermometer 23 and the tested long-rod platinum resistance thermometer 9 that inserts in the platinum-resistance thermometer sleeve pipe 3 all are connected to temperature measurer 8.
One end bottom of caliberating device housing 5 is provided with circulatory mediator inlet 1, and other end top is provided with circulatory mediator outlet 4; Circulatory mediator inlet 1 is connected circulation with circulatory mediator outlet 4 and bathes 7.The circulatory mediator gateway is arranged on the cavity both sides diverse location of caliberating device housing 5, need provide enough cyclic forces to support that fluid media (medium) has even velocity of flow in cavity with optimal flow state and the ebullator that reaches refluence medium in the cavity.
Circulation is bathed 7 and is used to provide the fluid of temperature constant, and allows fluid circulate in system, makes the interior temperature fluctuation of caliberating device less than 0.01 ℃.
Computing machine connects temperature measurer 8 and circulation bathes 7, with the ebullator work in the Control Circulation bath 7, flows for system provides stable constant temperature circulatory mediator; Whether qualified by the tested long-rod platinum resistance thermometer of the data judging of gathering temperature measurer 89.Can realize automatic measurement, calibration and staking-out work by computing machine.
When using this covering device, only need tested long-rod platinum resistance thermometer 9(2.7cm is long) whole insertion platinum-resistance thermometer sleeve pipe 3, make circulation bath 7 heating and circulate medium, wrap platinum-resistance thermometer sleeve pipe 3, make its temperature reach stable in inside cavity.Before tested long-rod platinum resistance thermometer 9 inserts platinum-resistance thermometer sleeve pipe 3, heat-conducting silicone grease can be coated with or an amount of silicone oil of filling in platinum-resistance thermometer sleeve pipe 3 outside tested long-rod platinum resistance thermometer 9.The circulation that whole system passes through is bathed 7 and form circular flow in cavity.In three accurate platinum-resistance thermometer temperature differed specialized range (± 0.05 ℃), it was even sighting target decide in the device case 5 medium temperatures, and whether the resistance value of measuring tested long-rod platinum resistance thermometer 9 this moment is qualified with judgement.
The stability of this device is demarcated and is used simply within 0.05 ℃, only tested long-rod platinum resistance thermometer 9 need be inserted in the thermometer hole.Thermometric is to be undertaken by the accurate platinum resistance that is arranged in three positions, can not only detected temperatures, and stability that can also the pick-up unit temperature field.The temperature that tested long-rod platinum resistance thermometer 9 is demarcated is the temperature of three accurate platinum resistance after average, has reduced error, has increased the precision of system.In addition, circulating fluid does not directly contact with platinum resistance, has reduced the contaminated possibility of platinum resistance, has improved the reliability of system.Because circulation is to carry out in airtight container fully, reduce contacting with external environment, increase the life-span that circulating fluid uses.The present invention can improve efficient and the precision that platinum resistance is demarcated, and demarcates in conjunction with the robotization of computer realization platinum resistance device.
Above content is to further describing that the utility model is done in conjunction with concrete preferred implementation; can not assert that embodiment of the present utility model only limits to this; for the utility model person of an ordinary skill in the technical field; under the prerequisite that does not break away from the utility model design; can also make some simple deduction or replace, all should be considered as belonging to the utility model and determine scope of patent protection by claims of being submitted to.
Claims (9)
1. a long-rod platinum resistance thermometer calibration device is characterized in that, comprises caliberating device housing (5), circulation bath (7), temperature measurer (8) and computing machine; In the cavity of caliberating device housing (5), evenly be provided with some platinum-resistance thermometer sleeve pipes (3), platinum-resistance thermometer sleeve pipe (3) one ends and extraneous UNICOM, the other end is welded on the inside cavity of caliberating device housing (5); Be inserted with some accurate platinum-resistance thermometers in the cavity of caliberating device housing (5); Described some accurate platinum-resistance thermometers connect temperature measurer (8); Caliberating device housing (5) is provided with circulatory mediator inlet (1) and circulatory mediator outlet (4); Circulatory mediator inlet (1) is connected circulation with circulatory mediator outlet (4) and bathes (7); Described circulation is bathed (7) and is connected computing machine with temperature measurer (8).
2. a kind of long-rod platinum resistance thermometer calibration device according to claim 1 is characterized in that caliberating device housing (5) is cylindrical, and it comprises by the internal layer that sets gradually outside interior (51), heat-insulation layer (52) and outer (53); The thickness of heat-insulation layer (52) is not less than 10mm; The cavity of caliberating device housing (5) has described internal layer (51) around forming.
3. a kind of long-rod platinum resistance thermometer calibration device according to claim 1 is characterized in that the length of platinum-resistance thermometer sleeve pipe (3) is 3000mm, and internal diameter is 10mm.
4. a kind of long-rod platinum resistance thermometer calibration device according to claim 1 is characterized in that the material of platinum-resistance thermometer sleeve pipe (3) is a red copper.
5. a kind of long-rod platinum resistance thermometer calibration device according to claim 1 is characterized in that the bottom of caliberating device housing (5) is provided with two adjustable supporters (6).
6. a kind of long-rod platinum resistance thermometer calibration device according to claim 1, it is characterized in that, circulatory mediator inlet (1) is arranged at caliberating device housing (5) one end bottoms, and circulatory mediator outlet (4) is arranged at caliberating device housing (5) other end top.
7. a kind of long-rod platinum resistance thermometer calibration device according to claim 1, it is characterized in that, tested long-rod platinum resistance thermometer (9) inserts in the platinum-resistance thermometer sleeve pipe (3), and described tested long-rod platinum resistance thermometer (9) connects described temperature measurer (8).
8. a kind of long-rod platinum resistance thermometer calibration device according to claim 7 is characterized in that, is filled with silicone oil or heat-conducting silicone grease between platinum-resistance thermometer sleeve pipe (3) and the tested long-rod platinum resistance thermometer (9).
9. a kind of long-rod platinum resistance thermometer calibration device according to claim 1, it is characterized in that described some accurate platinum-resistance thermometers comprise the first accurate platinum-resistance thermometer (21), the second accurate platinum-resistance thermometer (22) and the 3rd accurate platinum-resistance thermometer (23); The first accurate platinum-resistance thermometer (21), the second accurate platinum-resistance thermometer (22) and the 3rd accurate platinum-resistance thermometer (23) are arranged in circulatory mediator porch, circulatory mediator exit and the middle part of caliberating device housing (5) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320044592 CN203100935U (en) | 2013-01-25 | 2013-01-25 | Long rod platinum resistance thermometer calibrating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320044592 CN203100935U (en) | 2013-01-25 | 2013-01-25 | Long rod platinum resistance thermometer calibrating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203100935U true CN203100935U (en) | 2013-07-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320044592 Expired - Fee Related CN203100935U (en) | 2013-01-25 | 2013-01-25 | Long rod platinum resistance thermometer calibrating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203100935U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105942988A (en) * | 2016-05-17 | 2016-09-21 | 杭州欧汇科技有限公司 | Electronic thermometer and calibration method based on electronic thermometer |
| CN108827499A (en) * | 2018-07-30 | 2018-11-16 | 江苏方天电力技术有限公司 | A kind of temperature standard device of smokeless environment-friendly |
| CN110411592A (en) * | 2019-08-28 | 2019-11-05 | 广州计量检测技术研究院 | Standard thermometer measurement servicing unit and its application method |
-
2013
- 2013-01-25 CN CN 201320044592 patent/CN203100935U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105942988A (en) * | 2016-05-17 | 2016-09-21 | 杭州欧汇科技有限公司 | Electronic thermometer and calibration method based on electronic thermometer |
| CN108827499A (en) * | 2018-07-30 | 2018-11-16 | 江苏方天电力技术有限公司 | A kind of temperature standard device of smokeless environment-friendly |
| CN110411592A (en) * | 2019-08-28 | 2019-11-05 | 广州计量检测技术研究院 | Standard thermometer measurement servicing unit and its application 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: 20130731 Termination date: 20190125 |