CN109708778A - A kind of anti-icing temperature sensor and preparation method thereof - Google Patents
A kind of anti-icing temperature sensor and preparation method thereof Download PDFInfo
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- CN109708778A CN109708778A CN201811491990.8A CN201811491990A CN109708778A CN 109708778 A CN109708778 A CN 109708778A CN 201811491990 A CN201811491990 A CN 201811491990A CN 109708778 A CN109708778 A CN 109708778A
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- temperature sensor
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- icing
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Abstract
The present invention provides a kind of anti-icing temperature sensor and preparation method, including temperature sensor pedestal, temperature sensor main body and crozier；One end of temperature sensor main body is arranged in the temperature sensor pedestal, and the other end of the temperature sensor main body is arranged in the crozier；Inner flow passage is formed in the temperature sensor main body, temperature measurement component is arranged in the inner flow passage, for detecting the gas flow temperature in the inner flow passage；The temperature sensor main body further includes anti-icing equipment and heat-proof radiation device, the anti-icing equipment is arranged at the crozier, the heat-proof radiation device is arranged in the temperature sensor main body, is influenced with reducing the temperature measurement component by the heat radiation of the anti-icing equipment.The present invention can be improved the anti-icing effect and precision of temperature sensor.
Description
Technical field
The present invention relates to detection device technical fields, and in particular to a kind of anti-icing temperature sensor and preparation method thereof.
Background technique
Temperature sensor is different according to its anti-icing mode, can be divided into it is mechanical it is anti-icing, bleed is anti-icing, electro-thermal anti-ice etc..Mesh
Preceding machinery anti-icing temperature sensor takes blend stop in structure, takes the lead in freezing by the blend stop on windward side and is conducive to fall off, reduces
A possibility that air inlet blocks helps somewhat to sensor and continues to keep function, as shown in Figure of description 1, but
It is that under severe conditions, anti-icing effect is not obvious；The anti-icing temperature sensor of bleed, it is mainly anti-icing by using gas heat, it is anti-icing
Hot-air mostly from engine bleed air, hot-air through anti-icing valve regulation and control enter engine inlets forward position or
Sensor thermometric end achieve the purpose that it is anti-icing, but since bleed class sensor inner-cavity structure processes complicated (annular spray shape),
Sensor accuracy is interfered vulnerable to the hot gas of discharge.
Summary of the invention
Therefore, in order to overcome the disadvantages of the above prior art, the present invention provides a kind of anti-icing temperature sensor and preparation side
Method, to improve the anti-icing effect and precision of temperature sensor.
To achieve the goals above, the present invention provides a kind of anti-icing temperature sensor, including temperature sensor pedestal, temperature
Sensor main body and crozier；One end of temperature sensor main body is arranged in the temperature sensor pedestal, and the crozier is set
Set the other end in the temperature sensor main body；Inner flow passage is formed in the temperature sensor main body, temperature measurement component setting exists
In the inner flow passage, for detecting the gas flow temperature in the inner flow passage；The temperature sensor main body further includes anti-icing dress
It sets and heat-proof radiation device, the anti-icing equipment is arranged at the crozier, the heat-proof radiation device is arranged on institute
It states in temperature sensor main body, is influenced with reducing the temperature measurement component by the heat radiation of the anti-icing equipment.
Preferably, the crozier has ramped bottom surface, is provided with airflow inlet and diffluence pass on the crozier, described
Airflow inlet is located at the crozier windward side, and the diffluence pass is located at the side of the crozier；The axis of the airflow inlet
Line is parallel with the ramped bottom surface of the crozier.
Preferably, the heat-proof radiation device is between the temperature sensor main body and the temperature measurement component, with true
Protect temperature measurement component is not influenced by the heat radiation of the anti-icing equipment from temperature sensor main body.
Preferably, the anti-icing equipment be electric heating wire, the electric heating wire by the relay of controller rear end come into
Row control；The electric heating wire on the crozier airflow inlet described in spiral surrounding to the diffluence pass, the spiral
Longitudinal axis is parallel with the ramped bottom surface.
Preferably, acute angle triangle windward side is provided in the temperature sensor main body, the electric heating wire is from described
Acute angle triangle windward side both sides are back and forth.
Preferably, it is provided with electric heating wire on acute angle triangle windward side and moves towards arrangement slot, the electric heating wire is along institute
State arrangement slot from acute triangle windward side both sides back and forth.
Preferably, the heat-proof radiation device is ring-shaped pottery, and the ring-shaped pottery is arranged in the temperature sensor master
In the groove of body, the ring-shaped pottery is between the temperature sensor main body and the temperature measurement component.
Preferably, the temperature measurement component includes sensing element, and the sensing element is relative to the temperature sensor main body
It is longitudinally away from the electric heating wire direction and deviates 1 °~5 °.
The present invention also provides a kind of methods for preparing above-mentioned anti-icing temperature sensor, comprising the following steps:
A) temperature measurement component is soldered in the temperature sensor main body；
B) heat-proof radiation device is mounted in the temperature sensor main body；
B1 heat-proof radiation device surrounding) is coated into high-temp glue, is put into the intracorporal groove of temperature sensor master, so that described
Heat-proof radiation device is between the temperature sensor main body and the temperature measurement component；
B2) in the heat-proof radiation device upper end, filled silicon rubber, the fixed heat-proof radiation device；
C) the arrangement slot that anti-icing equipment is opened up on the temperature sensor outer surface, the anti-icing equipment is installed to institute
It states in arrangement slot, and fills the arrangement slot.
Preferably, anti-icing equipment includes heating wire, is provided with acute angle triangle windward side in the temperature sensor main body,
The step b) further comprise on the temperature sensor body outer surface there are electric heating wire move towards arrangement arrangement slot,
Spiral surrounding is until lower end gas outlet on the crozier for the arrangement slot, and from the setting in the temperature sensor main body
Have on acute angle triangle windward side back and forth；Heating wire is arranged to the arrangement slot, is coated finally by molten iron, surface of polishing.
Compared with prior art, the deicing of inventive sensor and thermal radiation resistant are structurally reasonable, can either realize high-power
Deicing, anti-icing effect is obvious, and while can be reduced heating influences sensor accuracy, ensure that micro-pressure sensor is reliably and accurate
Measurement.And it is easy to process, at low cost, it is advantageously implemented mass production.
Detailed description of the invention
Fig. 1 is the anti-icing equipment schematic diagram of prior art temperature sensor.
Fig. 2 is the diagrammatic cross-section of anti-icing temperature sensor of the invention.
Fig. 3 is the schematic diagram of anti-icing temperature sensor of the invention.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with specific embodiment, and reference
Attached drawing, the present invention is described in more detail.
In one embodiment of the invention, as shown in Figures 2 and 3, temperature sensor includes temperature sensor pedestal
1, temperature sensor main body 2 and crozier 5；One end of temperature sensor main body 2, institute is arranged in the temperature sensor pedestal 1
State the other end that the temperature sensor main body 2 is arranged in crozier 5；Inner flow passage 4 is formed in the temperature sensor main body 2,
Temperature measurement component is arranged in the inner flow passage 4, for detecting the gas flow temperature in the inner flow passage；The crozier 5 has
Ramped bottom surface is provided with airflow inlet 8 and diffluence pass 9 on the crozier 5, and the airflow inlet 8 is located at the crozier 5 and meets
Wind side, the diffluence pass 9 are located at the side of the crozier；The inclination bottom of the axis of the airflow inlet 8 and the crozier 5
Face is parallel；The temperature sensor main body further includes anti-icing equipment and heat-proof radiation device, and the anti-icing equipment is arranged on institute
It states at crozier 5, the heat-proof radiation device is arranged in the temperature sensor main body 2, specifically further includes ring in main body 2
Shape ceramics 3, inner flow passage 4, crozier 5 and sensing element 6 with ramped bottom surface.Temperature sensor main body 2 is along the longitudinal axis from temperature
Degree sensor base 1 extends to opposite ramped bottom surface and defines windward side and leeward.
In one embodiment, temperature sensor thermometric end windward side is set and is described as the exemplary of acute angle triangular facet
Embodiment, acute angle triangular facet extend to leeward from windward side in temperature sensor main body 2.Those skilled in the art also will
It is apparent to supply (such as water and ice) containing pollutant so existing since there are air inlets as shown in the figure in temperature sensor
Air-flow enter the airflow inlet of inner flow passage 4.
Those skilled in the art will readily appreciate that temperature sensor thermometric end windward side can be any suitable shape, such as wing
Shape, butt be wing, round or ellipse.Those skilled in the art will readily appreciate that the shape windward of acute angle triangular facet can be easy to
Ice sheet attachment is reduced under higher wind velocity condition, while maintaining lower air drag.
With continued reference to Fig. 2-3, temperature sensor pedestal includes installation base 11 and mounting flange 12, is used to pass temperature
Sensor main body 2 is connected to engine or other structures.Imagine for put-put application, for example, the diameter of installation base 11
It can be configured according to actual condition.Those skilled in the art will readily appreciate that the shape and size of temperature sensor can be easily
It is engaged to small-sized new engine crust of the device or refiting engine crust of the device.
Temperature sensor includes at least one anti-icing equipment, is placed in the temperature sensor main body at airflow inlet rear portion
In 2, it is configured to by forming heating borderline region to prevent icing or deicing.In one embodiment, anti-icing equipment exists
Spiral surrounding electric heating wire 7 on crozier 5 is until lower end diffluence pass 9, electric heating wire 7 need to only come from triangular facet windward side both sides
It returns, without winding.And between temperature sensor main body 2 and sensing element 6, add ring-shaped pottery 3 to be thermally shielded.To guarantee more
Uniform heat distribution allows to reduce in temperature sensor main body 2 icing probability, and heat-insulated by ring-shaped pottery 3, reduces heating
When on sensor accuracy influence, and reduce power consumption.
In one embodiment, the sensing element 6 in the combination of sensing element 6 deviates 1 °~5 ° to far from heater strip side.
In another embodiment, deicer is configured to crozier 5 and windward side deicing.Therefore, temperature is not compared
Degree sensor main body 2 is entirely heated, and institute's calorific requirement is relatively fewer, obtains more efficient deicing.In addition, those skilled in the art
Member will readily appreciate that deicing heater shown and described herein, including but not limited to heating wire.
Referring now to Fig. 2 and Fig. 3, temperature sensor includes being defined in temperature sensor main body 2 between leading edge and and the longitudinal axis
Airflow channel between the inner flow passage 4 of alignment has and is defined on crozier 5 for that will be fluidly connected in temperature sensor
The airflow inlet 8 in portion and multiple diffluence pass 9 for fluid to be discharged.Airflow inlet 8 is circular cross sectional shape.Diffluence pass 9
It is configured to reduce in the airflow inlet for sucking import upstream by the way that borderline region will be heated quick from heating borderline region arrival
The heat of sensing unit 6.In one embodiment, section of the section of each diffluence pass 9 perpendicular to airflow inlet.Art technology
Personnel will readily appreciate that the angle and plane that diffluence pass 9 extends from gas outlet can become according to desired pressure gradient as needed
Change.
It heats fluid stream and enters airflow inlet 8 and channel from temperature sensor main body 2.Heating fluid is flowed through by diffluence pass 9
Main body is left with gas outlet 10, wherein avoiding inner flow passage 4 and sensing element 6 reduces measurement caused by heat radiation by essence
Error.
In one embodiment, temperature-sensing element (device) 6 is installed in inner flow passage 4 for measuring the fluid across inner flow passage
Temperature.Temperature-sensing element (device) 6 is located to substantially avoid the heat from the heating borderline region derived from anti-icing equipment to subtract
Small error.
In one embodiment, sensing element is longitudinally away from the electric heating wire side relative to the temperature sensor main body
To offset, 1 °~5 ° those skilled in the art be will readily appreciate that, a variety of positions can be used in the size and shape according to inner flow passage.
Temperature sensor includes the ring-shaped pottery 3 being placed between inner flow passage and sensing element 6.Ring-shaped pottery 3 shapes
For cylinder, but to will readily appreciate that ring-shaped pottery 3 can have according to the location and shape of inner flow passage 4 a variety of by those skilled in the art
Shape.Ring-shaped pottery 3 is configured to shielding sensing element 6 not by the radiation of the heating surface from temperature sensor main body 2
It influences.In the presence of the gap for the fluid channel between ring-shaped pottery 3 and inner flow passage 4.3 surrounding of ring-shaped pottery coats high-temp glue,
It is placed in the groove inside temperature sensor main body 2, then on cavity, that is, ring-shaped pottery 3 inside temperature sensor main body 2
End, filled silicon rubber, stationary annular ceramics 3.
With continued reference to Fig. 2 and Fig. 3, inner flow passage is aligned with the longitudinal axis being defined in temperature sensor main body 2,4 quilt of inner flow passage
It is shown as being placed in the substantial cylindrical channel in temperature sensor main body 2, but those skilled in the art will readily appreciate that
Inner flow passage 4 can be any suitable shape.
In one embodiment of the present of invention, a kind of method for manufacturing anti-ice sensor is provided,
The following steps are included:
A) temperature measurement component is soldered in the temperature sensor main body；
B) heat-proof radiation device is mounted in the temperature sensor main body；
B1 heat-proof radiation device surrounding) is coated into high-temp glue, is put into the intracorporal groove of temperature sensor master, so that described
Heat-proof radiation device is between the temperature sensor main body and the temperature measurement component；
B2) in the heat-proof radiation device upper end, filled silicon rubber, the fixed heat-proof radiation device；
C) the arrangement slot that anti-icing equipment is opened up on the temperature sensor outer surface, the anti-icing equipment is installed to institute
It states in arrangement slot, and fills the arrangement slot.
In another embodiment, anti-icing equipment includes heating wire, is provided with acute angle in the temperature sensor main body
Triangle windward side, the step b) further comprise that there are electric heating wires to move towards row on the temperature sensor body outer surface
The arrangement slot of cloth, spiral surrounding is until lower end gas outlet on the crozier for the arrangement slot, and from the temperature sensor
Being provided on acute angle triangle windward side back and forth in main body；Heating wire is arranged to the arrangement slot, is applied finally by molten iron
It covers, surface of polishing.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.With
It is only the preferred embodiment of the present invention described in upper, it is noted that for those skilled in the art, not
Under the premise of being detached from the technology of the present invention principle, several improvements and modifications can also be made, these improvements and modifications also should be regarded as this
The protection scope of invention.
Claims (10)
1. a kind of anti-icing temperature sensor, it is characterised in that: including temperature sensor pedestal, temperature sensor main body and hook-shaped
Body；One end of temperature sensor main body is arranged in the temperature sensor pedestal, and the crozier is arranged in the temperature sensing
The other end of device main body；Inner flow passage is formed in the temperature sensor main body, temperature measurement component is arranged in the inner flow passage, with
Gas flow temperature in the detection inner flow passage；The temperature sensor main body further includes anti-icing equipment and heat-proof radiation device,
The anti-icing equipment is arranged at the crozier, and the heat-proof radiation device is arranged on the temperature sensor main body
It is interior, it is influenced with reducing the temperature measurement component by the heat radiation of the anti-icing equipment.
2. anti-icing temperature sensor as described in claim 1, which is characterized in that the crozier has ramped bottom surface, described
Airflow inlet and diffluence pass are provided on crozier, the airflow inlet is located at the crozier windward side, the diffluence pass position
In the side of the crozier；The axis of the airflow inlet is parallel with the ramped bottom surface of the crozier.
3. anti-icing temperature sensor as claimed in claim 2, which is characterized in that the heat-proof radiation device is located at the temperature
Between sensor main body and the temperature measurement component, to ensure temperature measurement component not by the anti-icing equipment from temperature sensor main body
The influence of heat radiation.
4. anti-icing temperature sensor as claimed in claim 3, which is characterized in that the anti-icing equipment is electric heating wire, described
Electric heating wire is controlled by the relay of controller rear end；Electric heating wire spiral surrounding institute on the crozier
Airflow inlet is stated to the diffluence pass, the longitudinal axis of the spiral is parallel with the ramped bottom surface.
5. anti-icing temperature sensor as claimed in claim 4, which is characterized in that being provided in the temperature sensor main body
Acute angle triangle windward side, the electric heating wire from acute angle triangle windward side both sides back and forth.
6. anti-icing temperature sensor as claimed in claim 5, which is characterized in that the acute angle triangle is provided with electricity on windward side
Heater strip move towards arrangement slot, the electric heating wire along the arrangement slot from acute triangle windward side both sides back and forth.
7. anti-icing temperature sensor as claimed in claim 6, which is characterized in that the heat-proof radiation device is ring-shaped pottery,
The ring-shaped pottery is arranged in the groove of the temperature sensor main body, and the ring-shaped pottery is located at the temperature sensor master
Between body and the temperature measurement component.
8. anti-icing temperature sensor as claimed in claim 7, which is characterized in that the temperature measurement component includes sensing element, institute
It states sensing element and is longitudinally away from described 1 °~5 ° of the offset of electric heating wire direction relative to the temperature sensor main body.
9. a kind of method for preparing anti-icing temperature sensor as described in claim 1, which comprises the following steps:
A) temperature measurement component is soldered in the temperature sensor main body；
B) heat-proof radiation device is mounted in the temperature sensor main body；
B1 heat-proof radiation device surrounding) is coated into high-temp glue, is put into the intracorporal groove of temperature sensor master, so that the solar heat protection
Radiation appliance is between the temperature sensor main body and the temperature measurement component；
B2) in the heat-proof radiation device upper end, filled silicon rubber, the fixed heat-proof radiation device；
C) the arrangement slot that anti-icing equipment is opened up on the temperature sensor outer surface, the anti-icing equipment is installed to the row
In cloth slot, and fill the arrangement slot.
10. method as claimed in claim 9, which is characterized in that anti-icing equipment includes heating wire, the temperature sensor main body
On be provided with acute angle triangle windward side, the step b) further comprise on the temperature sensor body outer surface there are
Electric heating wire moves towards the arrangement slot of arrangement, the arrangement slot on the crozier spiral surrounding up to lower end gas outlet, and from
Being provided on acute angle triangle windward side back and forth in the temperature sensor main body；Heating wire is arranged to the arrangement slot,
It is coated finally by molten iron, surface of polishing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811491990.8A CN109708778A (en) | 2018-12-07 | 2018-12-07 | A kind of anti-icing temperature sensor and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811491990.8A CN109708778A (en) | 2018-12-07 | 2018-12-07 | A kind of anti-icing temperature sensor and preparation method thereof |
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| CN109708778A true CN109708778A (en) | 2019-05-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811491990.8A Pending CN109708778A (en) | 2018-12-07 | 2018-12-07 | A kind of anti-icing temperature sensor and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112556728A (en) * | 2019-09-25 | 2021-03-26 | 中国航发商用航空发动机有限责任公司 | Anti-icing sensor and have its engine |
| CN113804449A (en) * | 2020-06-17 | 2021-12-17 | 中国航发商用航空发动机有限责任公司 | Total temperature detection device and aeroengine |
| CN115790958A (en) * | 2023-02-09 | 2023-03-14 | 中国航发四川燃气涡轮研究院 | Electric heating anti-icing pressure probe for high-altitude simulation test |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115790958A (en) * | 2023-02-09 | 2023-03-14 | 中国航发四川燃气涡轮研究院 | Electric heating anti-icing pressure probe for high-altitude simulation test |
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Application publication date: 20190503 |
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