CN205844252U - A kind of boiler of power plant flue oxygen content measurement instrument with Antiwear casing - Google Patents
A kind of boiler of power plant flue oxygen content measurement instrument with Antiwear casing Download PDFInfo
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- CN205844252U CN205844252U CN201620693584.XU CN201620693584U CN205844252U CN 205844252 U CN205844252 U CN 205844252U CN 201620693584 U CN201620693584 U CN 201620693584U CN 205844252 U CN205844252 U CN 205844252U
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- zirconium oxide
- outer tube
- insulation layer
- heat
- measure
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Abstract
A kind of boiler of power plant flue oxygen content measurement instrument with Antiwear casing, two parts of pipe are measured including rosette and zirconium oxide, measure in rosette and zirconium oxide and be provided with flange between pipe, measure at zirconium oxide and be provided with housing outside pipe, heat-insulation layer it is provided with in housing, platinum catalytic electrode and zirconium oxide cell it is provided with in heat-insulation layer, heater and thermocouple it is provided with in heat-insulation layer, rosette is connected to rustless steel outer tube, detected gas conduit it is provided with in rustless steel outer tube, it is provided with wearing bush at rustless steel outer tube, a kind of boiler of power plant flue oxygen content measurement instrument with Antiwear casing of this utility model, design compact conformation, measure accurately, and etchant gas can be measured, service life is long.
Description
Technical field
This utility model relates to power plant's measuring instrument field, particularly relates to a kind of boiler of power plant cigarette with Antiwear casing
Road oxygen content measurement instrument.
Background technology
Thermal power plant is the rich and influential family consuming the coal energy, and in boiler running process, burning optimization adjusts the most necessary, enters
The air quality of boiler and the ratio of fuel quantity, air capacity is big, and flue gas loss is the biggest, and air capacity is little, and chemistry fires the most completely
Burning, keep optimal proportion, it is possible to save the energy, protect environment, therefore the flue gas of boiler flue is measured the most crucial, and flue is measured
Instrument is the instrument being specifically used to measure flue oxygen content, and present flue measuring instrument uses zirconium oxide oxygen measuring device, and zirconium oxide is surveyed
Being provided with zirconia sensor in amount instrument, zirconia sensor is principle based on solid state electrochemical cell, utilizes zirconium oxide oxygen
Concentration difference, zirconium oxide interlayer is heated to 600 DEG C, and oxonium ion can move to the one side of low concentration from the one side of the high concentration that compares,
This migration produces an electric potential difference the most between the ends, can be used for assessing the content of oxygen.
Zirconium oxide measuring instrument internal oxidition zirconium pipe is while being reference gas air, and another side is tested gas flue gas.Due to oxygen
Concentration difference causes oxonium ion to move on to flue gas limit from air limit, and the electromotive force produced causes oxonium ion reversely to move to sky from flue gas limit
Gas limit, after both migrations reach balance, just produces a probe signal relevant with oxygen concentration difference, this signal between two electrodes
Meet Nernst equation, utilize equation to calculate flue oxygen content.
Flue oxygen content measurement instrument, output signal of telecommunication itself, precision comparison is high, and real is at zirconium oxide for measure oxygen amount
Middle addition calcium oxide, existing flue circumstance complication, hinder granule, carbon dust containing dirt, measuring instrument is produced threat service life, for
This, this utility model provides a kind of measuring instrument with Antiwear casing so that flue oxygen content measurement instrument increases service life,
Decrease the number of times manually climbed down on flue swashes, reduce maintenance cost.
Utility model content
This utility model is mainly solving the technical problems that provide a kind of boiler of power plant flue oxygen amount with Antiwear casing
Measuring instrument, it is possible to realize the accurate measurement of flue gas content, and service life is long.
Described a kind of boiler of power plant flue oxygen content measurement instrument with Antiwear casing, measures including rosette and zirconium oxide
Two ingredients of pipe, measure in rosette and zirconium oxide simultaneously and are provided with flange arrangement between pipe.
Measure at zirconium oxide and be provided with housing outside pipe, in housing, be provided with heat-insulation layer, in heat-insulation layer, be provided with platinum
Catalysis electrode and zirconium oxide cell, and in heat-insulation layer, it is provided with heater and thermocouple.
Thermocouple is the temperature element in temperature measuring instrument, and it is directly measured temperature, and temperature signal is converted into heat
Electromotive force signal, is converted into the temperature of measured medium by electric meter.
And in rosette, it is connected to rustless steel outer tube, it is provided with detected gas conduit in rustless steel outer tube, at detection gas
Body canal front end is connected to filter, and the other end of filter is provided with permeability cell, and tested gas is entered by permeability cell, tested
Gas has oxygen partial pressure difference different with reference air in zirconia solid electrolyte, just can export oxygen voltage through the catalysis of platinum motor,
Through microcomputer computing, can be in the hope of tested gas oxygen dividing potential drop, excess air coefficient, and the Fuel Consumption that converts.
Connecting in detected gas catheter proximal end and be provided with reference gas entrance, air enters from reference gas entrance.
Owing to rustless steel outer tube directly contacts with flue dust, outer tube is had and washes away and wear and tear, reduce the life-span, to this end, not
Rust steel outer tube is provided with wearing bush, and wearing bush uses ceramic material, wear-resisting, high temperature resistant, it is not easy to abrasion perforation, improves
The life-span of oxygen content determiner for zirconium oxide.
The beneficial effects of the utility model are: a kind of boiler of power plant flue oxygen amount with Antiwear casing of this utility model is surveyed
Amount instrument, designs compact conformation, measures accurately, and can measure etchant gas, and service life is long.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of boiler of power plant flue oxygen content measurement instrument with Antiwear casing of this utility model；
In accompanying drawing, the labelling of each parts is as follows:
1 is rosette, and 2 measure pipe for zirconium oxide, and 3 is thermocouple, and 4 is heat-insulation layer, and 5 is heater, and 6 enter for reference gas
Mouthful, 7 is flange, and 8 is detected gas conduit, and 9 is rustless steel outer tube, and 10 is filter, and 11 is permeability cell, and 12 is zirconium oxide electricity
Pond, 13 is wearing bush.
Detailed description of the invention
Below in conjunction with the accompanying drawings preferred embodiment of the present utility model is described in detail, so that advantage of the present utility model
Can be easier to be readily appreciated by one skilled in the art with feature, thus protection domain of the present utility model is made apparent clearly
Define.
Referring to Fig. 1, this utility model embodiment includes:
Described a kind of boiler of power plant flue oxygen content measurement instrument with Antiwear casing, measures including rosette and zirconium oxide
Two ingredients of pipe, measure in rosette and zirconium oxide simultaneously and are provided with flange arrangement between pipe.
Measure at zirconium oxide and be provided with housing outside pipe, in housing, be provided with heat-insulation layer, in heat-insulation layer, be provided with platinum
Catalysis electrode and zirconium oxide cell, and in heat-insulation layer, it is provided with heater and thermocouple.
Thermocouple is the temperature element in temperature measuring instrument, and it is directly measured temperature, and temperature signal is converted into heat
Electromotive force signal, is converted into the temperature of measured medium by electric meter.
And in rosette, it is connected to rustless steel outer tube, it is provided with detected gas conduit in rustless steel outer tube, at detection gas
Body canal front end is connected to filter, and the other end of filter is provided with permeability cell, and tested gas is entered by permeability cell, tested
Gas has oxygen partial pressure difference different with reference air in zirconia solid electrolyte, just can export oxygen voltage through the catalysis of platinum motor,
Through microcomputer computing, can be in the hope of tested gas oxygen dividing potential drop, excess air coefficient, and the Fuel Consumption that converts.
Connecting in detected gas catheter proximal end and be provided with reference gas entrance, air enters from reference gas entrance.
Owing to rustless steel outer tube directly contacts with flue dust, outer tube is had and washes away and wear and tear, reduce the life-span, to this end, not
Rust steel outer tube is provided with wearing bush, and wearing bush uses ceramic material, wear-resisting, high temperature resistant, it is not easy to abrasion perforation, improves
The life-span of oxygen content determiner for zirconium oxide.
The foregoing is only embodiment of the present utility model, not thereby limit the scope of the claims of the present utility model, every
Utilize equivalent structure or equivalence flow process conversion that this utility model description and accompanying drawing content made, or be directly or indirectly used in
Other relevant technical fields, are the most in like manner included in scope of patent protection of the present utility model.
Claims (1)
1. the boiler of power plant flue oxygen content measurement instrument with Antiwear casing, it is characterised in that including: rosette and zirconium oxide
Measure two ingredients of pipe, measure in rosette and zirconium oxide simultaneously and be provided with flange arrangement between pipe, measure at zirconium oxide
It is provided with housing outside pipe, in housing, is provided with heat-insulation layer, in heat-insulation layer, be provided with platinum catalytic electrode and zirconium oxide cell,
And in heat-insulation layer, it being provided with heater and thermocouple, thermocouple is the temperature element in temperature measuring instrument, and it is directly surveyed
Amount temperature, and temperature signal is converted into thermo-electromotive force signal, it is converted into the temperature of measured medium by electric meter, and is connecing
It is connected to rustless steel outer tube on line box, in rustless steel outer tube, is provided with detected gas conduit, connect in detected gas catheter proximal end
Filter, the other end of filter is provided with permeability cell, tested gas is entered by permeability cell, and tested gas is solid with zirconium oxide
In body electrolyte, reference air has oxygen partial pressure difference different, just can export oxygen voltage through the catalysis of platinum motor, through microcomputer computing, and can
In the hope of tested gas oxygen dividing potential drop, excess air coefficient, and the Fuel Consumption that converts, connect in detected gas catheter proximal end and arrange
Reference gas entrance, air enters from reference gas entrance, is provided with wearing bush at rustless steel outer tube, and wearing bush uses ceramic material
Make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620693584.XU CN205844252U (en) | 2016-07-05 | 2016-07-05 | A kind of boiler of power plant flue oxygen content measurement instrument with Antiwear casing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620693584.XU CN205844252U (en) | 2016-07-05 | 2016-07-05 | A kind of boiler of power plant flue oxygen content measurement instrument with Antiwear casing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205844252U true CN205844252U (en) | 2016-12-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620693584.XU Expired - Fee Related CN205844252U (en) | 2016-07-05 | 2016-07-05 | A kind of boiler of power plant flue oxygen content measurement instrument with Antiwear casing |
Country Status (1)
| Country | Link |
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| CN (1) | CN205844252U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107907579A (en) * | 2017-12-31 | 2018-04-13 | 中船动力研究院有限公司 | Measuring equipment for oxygen concentration ard for diesel engine EGR system inlet manifold mixed gas |
| CN110261459A (en) * | 2019-06-17 | 2019-09-20 | 北京科技大学 | A kind of device for controlling extremely low oxygen content in atmosphere and measuring its partial pressure of oxygen |
-
2016
- 2016-07-05 CN CN201620693584.XU patent/CN205844252U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107907579A (en) * | 2017-12-31 | 2018-04-13 | 中船动力研究院有限公司 | Measuring equipment for oxygen concentration ard for diesel engine EGR system inlet manifold mixed gas |
| CN110261459A (en) * | 2019-06-17 | 2019-09-20 | 北京科技大学 | A kind of device for controlling extremely low oxygen content in atmosphere and measuring its partial pressure of oxygen |
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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: 20161228 Termination date: 20170705 |