CN2773647Y - Composite sensing steam pressure thermometer - Google Patents
Composite sensing steam pressure thermometer Download PDFInfo
- Publication number
- CN2773647Y CN2773647Y CN 200520039970 CN200520039970U CN2773647Y CN 2773647 Y CN2773647 Y CN 2773647Y CN 200520039970 CN200520039970 CN 200520039970 CN 200520039970 U CN200520039970 U CN 200520039970U CN 2773647 Y CN2773647 Y CN 2773647Y
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- scales
- thermometer
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- steam
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- Measuring Fluid Pressure (AREA)
Abstract
The utility model discloses a composite sensing steam pressure type thermometer which comprises a pointer type meter head and a composite sensor composed of a thermometer bulb and a platinum resistor. The utility model is characterized in that the thermometer bulb filled with steam sensing medium is provided with a platinum resistance Pt100 temperature detecting element; the meter head is provided with two scale rings, wherein the inner ring is provided with scales from 0 to 160 DEG C., and the outer ring corresponding to the scales on the inner ring is provided with the scales from 4 to 20mA. The utility model adopts the scales from 0 to 160 DEG C. instead of traditional steam nonlinear scales from 60 to 160 DEG C. and is characterized in that sensing signals of international standard scales from 4 to 20mA can correspond to in the temperature range from 0 to 160 DEG C., and thus, a linear constant of 0.1mA/DEG C. is obtained for a computer network to identify. The utility model reaches low cost, at the same time, the output of the linear current signals form 4 to 20mA is obtained through platinum resistance and the defect of inconvenient nonlinear scale reading is overcome.
Description
Technical field
The utility model relates to the composite sensing vapor pressure formula thermometer of the transformer station of a kind of being mainly used in " unmanned ", belongs to the thermometric instrument field.
Background technology
Existing composite sensing pressure-type thermometer, it comprises gauge outfit and compound sensor two parts of pointer-type, compound sensor is made up of thermometer bulb that is filled with temperature sensing medium and platinum resistance, temperature sensing medium is a liquid in the thermometer bulb, steam etc., " unmanned " transformer station fuel temperature measurement is with composite sensing fluid pressure formula thermometer at present, this thermometer, what fill in the thermometer bulb is liquid, because the leakage of liquid, can badly influence the precision of thermometer, therefore very high to the requirement of the sealing of thermometer bulb, make make complicated, the cost height, and adopt the steam thermometer bulb, then sealing requirements is lower, has the throughput rate height, the characteristic of low cost of manufacture, but can only show the non-linear scale value with vapor pressure formula thermometer.Carrying out " unmanned " way to manage in view of transformer station's great majority, mainly is by the computer networking technology remote measuring and controlling.Vapor pressure formula thermometer especially for 60～160 ℃ of meter full scales of measuring transformer pasta temperature in " unmanned " transformer station, requirement is very big, and needs is the 4-20mA signal of delivering to computing machine, therefore, meter sense can be non-linear scale, and this can make the requirement of the sealing of thermometer bulb reduce, and is easy to manufacture, the production efficiency height, cost is low.
Summary of the invention
The purpose of this utility model is in order to overcome the shortcoming of prior art, provides that a kind of platinum resistance and steam thermometer bulb are compound to be one, is equipped with double-dial composite sensing vapor pressure formula thermometer on the gauge outfit.
The technical solution of the utility model is: a kind of composite sensing vapor pressure formula thermometer, it comprises the gauge outfit of pointer-type and compound sensor two parts of being made up of thermometer bulb, platinum resistance, be filled with the temperature sensing medium of steam in the thermometer bulb, be characterized in, A, be equipped with platinum resistance Pt100 detector unit with the thermometer bulb that is filled with the steam temperature sensing medium; Be equipped with double scale on B, the described gauge outfit, inner ring is 0～160 ℃ of scale, and is equipped with 4～20mA scale on the corresponding outer ring of inner ring scale.
The beneficial effects of the utility model are: because the utility model is to adopt that a kind of platinum resistance and steam thermometer bulb are compound to be the compound sensor of one, by platinum resistance output temperature signal, by the linear current signal of converter output 4～20mA, i.e. 0.1mA/ ℃ of linear constant.The utility model is to change 0～160 ℃ into by 60～160 ℃ of traditional steam non-linear scales, its meaning is the transducing signal of the corresponding international standard groove of 0～160 ℃ of temperature range 4～20mA, thereby obtains a 0.1mA/ ℃ of linear constant for computer network identification.The utility model obtains linear current signal output with platinum resistance when acquisition reduces cost, overcome the shortcoming of non-linear scale reading inconvenience.
Description of drawings
Fig. 1 is a composite sensing vapor pressure formula thermometer structural representation,
Fig. 2 is the meter dial synoptic diagram of composite sensing vapor pressure formula thermometer.
Embodiment
A kind of composite sensing vapor pressure formula thermometer, by Fig. 1, shown in Figure 2, it comprises the gauge outfit 1 of pointer-type and compound sensor two parts of being made up of thermometer bulb 3, platinum resistance 2, be filled with the temperature sensing medium of steam in the thermometer bulb 3, be characterized in, A, be equipped with platinum resistance Pt100 detector unit 2 with the thermometer bulb 3 that is filled with the steam temperature sensing medium; Be equipped with double scale on B, the described gauge outfit 1, inner ring is 0～160 ℃ of scale 5, and is equipped with 4～20mA scale 6 on the corresponding outer ring of inner ring scale.It is to be formed by former 60～160 ℃ of scales expansion, it is one that the utility model adopts platinum resistance and steam thermometer bulb, by platinum resistance Pt100 detector unit 2 output temperature signals, convert 4～20mA linear current signal to by temperature divertor 4, be corresponding 160 ℃ of 16mA, then linear constant is 0.1mA/ ℃, can intuitively read linear current value on gauge outfit.
Claims (1)
1, a kind of composite sensing vapor pressure formula thermometer, it comprises the gauge outfit (1) of pointer-type and compound sensor two parts of being made up of thermometer bulb (3), platinum resistance (2), is filled with the temperature sensing medium of steam in the thermometer bulb (3), it is characterized in that:
A, be equipped with platinum resistance Pt100 detector unit (2) with the thermometer bulb that is filled with the steam temperature sensing medium (3);
B, described gauge outfit are equipped with double scale on (1), and inner ring is 0～160 ℃ of scale (5), and are equipped with 4～20mA scale (6) on the corresponding outer ring of inner ring scale.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520039970 CN2773647Y (en) | 2005-03-07 | 2005-03-07 | Composite sensing steam pressure thermometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520039970 CN2773647Y (en) | 2005-03-07 | 2005-03-07 | Composite sensing steam pressure thermometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2773647Y true CN2773647Y (en) | 2006-04-19 |
Family
ID=36708911
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520039970 Expired - Fee Related CN2773647Y (en) | 2005-03-07 | 2005-03-07 | Composite sensing steam pressure thermometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2773647Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103149923A (en) * | 2013-02-22 | 2013-06-12 | 辽宁省电力有限公司丹东供电公司 | Verifying device for oil surface temperature controller of power transformer |
| CN109827668A (en) * | 2019-03-22 | 2019-05-31 | 安徽徽宁电器仪表集团有限公司 | A kind of High Precision Temperature Measuring Instruments |
| CN110031033A (en) * | 2019-05-17 | 2019-07-19 | 武汉市康达电气有限公司 | A kind of broken line logarithmic scale table and its display methods |
-
2005
- 2005-03-07 CN CN 200520039970 patent/CN2773647Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103149923A (en) * | 2013-02-22 | 2013-06-12 | 辽宁省电力有限公司丹东供电公司 | Verifying device for oil surface temperature controller of power transformer |
| CN109827668A (en) * | 2019-03-22 | 2019-05-31 | 安徽徽宁电器仪表集团有限公司 | A kind of High Precision Temperature Measuring Instruments |
| CN110031033A (en) * | 2019-05-17 | 2019-07-19 | 武汉市康达电气有限公司 | A kind of broken line logarithmic scale table and its display methods |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |