CN208847365U - High Temperature Contact Surface Temperature Sensor - Google Patents
High Temperature Contact Surface Temperature Sensor Download PDFInfo
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- CN208847365U CN208847365U CN201821683074.XU CN201821683074U CN208847365U CN 208847365 U CN208847365 U CN 208847365U CN 201821683074 U CN201821683074 U CN 201821683074U CN 208847365 U CN208847365 U CN 208847365U
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Abstract
本实用新型涉及一种高温接触式表面温度传感器，包括壳体，壳体下端设置有磁铁环，壳体内设置有均温槽，壳体上端设置有上盖，上盖密封壳体内的均温槽，上盖的中部穿装有温度传感器，温度传感器下部插入均温槽的下部，浸没在均温槽内的均温介质内，均温介质为甲基硅油，上盖上设置有注液孔，注液孔与壳体上的均温槽对应，注液孔内设置有单向排气阀。采用磁体吸附的方式吸附在被测物体表面，不会对被测物体造成破坏，保证被测物体的正常安全使用，在温度传感器内设置液体均温介质，测温探头浸没在液体均温介质内，均温介质采用甲基硅油适合90℃～200℃的高温段的温度测量，能够消除外界环境温湿度对测温探头的影响，保证温度测量的准确度。
The utility model relates to a high-temperature contact surface temperature sensor, which comprises a casing, a magnet ring is arranged at the lower end of the casing, a temperature equalization groove is arranged in the casing, an upper cover is arranged at the upper end of the casing, and the upper cover seals the temperature equalization groove in the casing , the middle of the upper cover is equipped with a temperature sensor, and the lower part of the temperature sensor is inserted into the lower part of the temperature equalization tank, and is immersed in the temperature average medium in the temperature average tank. The average temperature medium is methyl silicone oil, and the upper cover is provided with an injection hole. The liquid injection hole corresponds to the temperature equalization groove on the shell, and a one-way exhaust valve is arranged in the liquid injection hole. The method of magnet adsorption is used to adsorb on the surface of the object to be measured, which will not cause damage to the object to be measured, and ensure the normal and safe use of the object to be measured. The temperature sensor is set with a liquid uniform temperature medium, and the temperature measurement probe is immersed in the liquid uniform temperature medium. , The uniform temperature medium uses methyl silicone oil for temperature measurement in the high temperature range of 90 ℃ ~ 200 ℃, which can eliminate the influence of the temperature and humidity of the external environment on the temperature probe and ensure the accuracy of temperature measurement.
Description
Technical field:
The utility model belongs to temperature detection calibration measurement technology of instrument and meter field, and in particular to a kind of high temperature contact
Formula surface temperature sensor.
Background technique:
Surface temperature measurement is applied to the temperature control field of all trades and professions, such as blast furnace and heat distribution pipeline appearance in power plant at present
The monitoring of face temperature, the rail temperature measurement in railway track traffic before and after train driving, steel and iron manufacturing industry light plate surface
The measurement of temperature, the monitoring of kiln hull-skin temperature in energy-saving monitoring, the aircraft surface temperature in aerospace scientific research
Monitoring, builds the requirement that pitch rolling and forming machine used in detection uses temperature, and hollow-glass dew-point instrument is thermally conductive to glass
Property verifying and daily life in the heating plate etc. that encounters require to carry out the measurement of surface temperature.
Currently, the measurement method of body surface temperature is divided into contact and contactless two class.
Contactless temperature-measuring, as the term suggests when measuring to body surface temperature, temperature sensor is not necessarily to and is tested
Body surface contact, has without contact, responds fast advantage, but to the big material of surface reflection refractive index such as metal
Deng measurement error is big and it is necessary to emissivity is set, it can not Accurate Determining temperature.
Contact temperature-measuring is placed in sensor in thermal equilibrium state identical with object, and sensor and object is made to keep same
The temp measuring method of one temperature.Such as the mercurial thermometer that manufactures of principle using medium expanded by heating, pressure-type thermometer and double
Metallic thermometer etc.;Temperature is detected using the characteristic that object electric parameter varies with temperature, such as thermal resistance, thermistor, electricity
Minor temperature sensor and thermocouple etc..The advantages such as it is small with relative measurement error, accuracy is high, but temperature sensor and quilt
The contact surface for surveying object is easy to be influenced by ambient temperature and humidity, corrosion easy to oxidize of popping one's head in, and measurement range is limited.
It is connect for accuracy when guaranteeing the measurement of body surface temperature currently, still using contact temperature-measuring mostly in the market
Touch thermometric, temperature sensor must be contacted with testee surface, currently, traditional high temperature contact formula surface temperature sensor
It include: that thermocouple, thermal resistance welding, anchor ear binding, screw the modes such as are fixed and be fixed on testee surface mount manner
The surface of equipment under test, pipeline.These mounting means respectively have deficiency: 1. are welded and fixed formula: destroying measured surface, reduction is tested
It will be highly difficult when equipment intensity, replacement or maintenance temperature sensor.2. anchor ear cluster: there is limitation, be only used for small
On type pipeline, and possible loose or dislocation is measured for a long time, accuracy is easy to be influenced by the external world.3. screw is fixed: destroying measured object
It is very big to reduce testee overall performance, limitation for body surface face.
Utility model content:
In conclusion in order to overcome the shortcomings of that prior art problem, the utility model provide a kind of high temperature contact formula table
Face temperature sensor, it is that testee surface is adsorbed on by the way of magnet absorption, will not be damaged to testee,
Guarantee the normal safe handling of testee, while liquid samming medium, temperature are set in the shell of surface temperature sensor
Sensor is immersed in samming medium, to eliminate influence of the external environment temperature and humidity to temperature sensor, guarantees temperature measurement
Accuracy.
In order to solve the above technical problems, the technical solution of the utility model is achieved in that
A kind of high temperature contact formula surface temperature sensor, in which: including shell, upper cover, temperature sensor, magnet ring and
Warm medium, the shell lower end are provided with annular slot, and annular slot is provided with magnet ring, are provided in the shell
Warm slot, shell upper end are provided with upper cover, the intracorporal samming slot of upper cover capsul, and the upper cover cross sectional shape is T font, including
The flat part of integral structure and the vertical interconnecting piece of flat part lower end setting, are provided with external screw thread on the vertical interconnecting piece,
The cross sectional shape of the intracorporal samming slot of the shell is T font, and upper part is provided with internal screw thread, contains samming in its underpart and be situated between
The vertical interconnecting piece of matter, the upper cover is connect with samming slot top screw threads for fastening, is coated with temperature in the middle part of the upper cover
Sensor, temperature sensor lower part are inserted into the lower part of samming slot, are immersed in the samming medium in samming slot, and the samming is situated between
Matter is methyl-silicone oil, and liquid injection hole, the liquid injection hole liquid injection hole corresponding, described with the samming slot on shell are provided on the upper lid
Inside it is provided with one-way exhaust valve.
Further, the shell is cylindrical lead and yellow-collation copper shell or is cylindrical aluminium bronze shell.
Further, the distance between the samming groove bottom and shell lower end surface are 0.2 ~ 1mm.
Further, its outer suit insulation set after the shell and upper cover are installed, the thermal insulation separation hot jacket is glass
Glass fibre sleeving is nylon jacket.
Further, the annular slot of the shell lower end is positioned close to shell rim position, the depth of annular slot
Identical as the height of magnet ring, the annular diameters of annular slot are greater than the diameter of samming slot.
Further, sealing ring is provided between the flat part and shell of the upper cover.
Further, the temperature sensor is sheath temperature sensor, including terminal box, screw rod, protection sleeve pipe, resistance
Lead, compensating wire and temperature-measuring resistance element, in screw rod upper end, protection sleeve pipe is arranged under screw rod for the terminal box setting
It holds, resistance lead and temperature-measuring resistance element is provided in protection sleeve pipe, resistance lead passes through screw rod and leads in terminal box with compensation
Line connection, the protection sleeve pipe is interior to be filled with insulation filling particle, and the insulation filling particle is the nitridation of purity >=95%
Aluminium insulating heat-conductive particle, the temperature-measuring resistance element are AA grades of PT100 platinum resistance thermometer sensor,s.
Further, the compensating wire includes the screen being arranged in conducting wire, the insulating layer being wrapped in outside conducting wire and insulating layer
Layer is covered, the insulating layer is teflon insulation layer, and the shielded layer is stainless (steel) wire.
The utility model has the following beneficial effects:
1, the utility model is that testee surface is adsorbed on by the way of magnet absorption, will not be caused to testee
It destroys, guarantees the normal safe handling of testee, while liquid samming medium is set in temperature sensor, temperature probe leaching
Not in liquid samming medium, liquid samming medium is suitble to the temperature measurement of 90 DEG C~200 DEG C of high temperature section using methyl-silicone oil,
The setting of samming medium can eliminate influence of the external environment temperature and humidity to temperature probe, guarantee the accuracy of temperature measurement.
2, the utility model shell 1 uses ledrite or aluminium bronze material, and between samming groove bottom and housing bottom surface
Distance only 0.2 ~ 1mm, so that being conducive to testee temperature quickly passes to samming medium in samming slot, the utility model
Temperature sensor is immersed in liquid samming medium, and temperature sensor detects the temperature of samming medium, can effectively improve temperature
The stability for spending measurement, promotes the temperature-sensitive rate of temperature sensor, promotes temperature measuring efficiency, outside the shell and upper cover of the utility model
It is enclosed with thermal insulation separation hot jacket, and, thermal insulation separation hot jacket is using nylon jacket or uses fiber glass coating, and nylon jacket or fiber glass coating exist
High temperature section has good heat insulation, can effectively reduce the influence that external environment temperature and humidity measures temperature, guarantees to survey
The accuracy of temperature.
3, the samming medium of the utility model uses methyl-silicone oil, as colorless and transparent, odorless liquid, in high temperature section pair
There is very excellent stability in thermal oxide, to most metals and plastics do not corrode and adverse effect, through a long time
Dipping appearance is unchanged, and temperature is substantially non-volatile at 200 DEG C or less, and the utility model is applicable in 90 DEG C~200 DEG C of high temperature section
Temperature measurement, methyl-silicone oil expand after heated, cause pressure in samming slot to increase, are unfavorable for the utility model stable structure,
Therefore, samming medium after liquid injection hole injection samming slot, is being packed into one-way exhaust valve, methyl by the utility model in liquid injection hole
After expanded by heating, the gas of generation is discharged silicone oil from one-way exhaust valve, reaches pressure release purpose, guarantees that equipment safety is stablized.
4, the temperature sensor of the utility model is simple using sheath temperature sensor operations, easy to connect, passes through screw rod
Portion is located at upper cover threaded connection, and temperature-measuring resistance element is that AA grades of PT100 platinum resistance thermometer sensor, measurement accuracy are high, and accuracy rate is high, mends
It repays conducting wire and transmits temperature transition signal with voltage or current signal, the shielded layer of stainless (steel) wire, Neng Gouyou is arranged in compensating wire
The influence that the reduction external environment of effect generates signal transmitting, guarantees the accuracy of temperature detection result.
5, the edge that shell lower end is set for being embedded in the annular slot of magnet ring on the shell of the utility model,
And the diameter of the inner ring of annular slot is greater than the diameter of samming slot, then can guarantee that samming slot has enough contact with testee
Area guarantees that object surface temperature quickly passes to the samming medium in samming slot, reduces dissipating in temperature transmittance process
Consumption is lost, guarantees thermometric accuracy.
6, the utility model structure is simple, easy to use and operate, at low cost, introduces samming slot and samming medium, Neng Gouyou
The efficiency and accuracy of the raising surface temperature measurement of effect, while external environment temperature and humidity is eliminated as far as possible to the shadow of temperature-measuring results
It rings, guarantees temperature measurement accuracy, through testing, its measurement error of the surface temperature sensor of the utility model is controlled at ± 0.5 DEG C,
Fluctuation and stability are at ± 0.1 DEG C.
Detailed description of the invention:
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the structural schematic diagram of the temperature sensor of the utility model.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing.
As shown in Figure 1 and Figure 2, a kind of high temperature contact formula surface temperature sensor, in which: including shell 1, upper cover 2, temperature
Sensor 3, magnet ring 4 and samming medium 5, the shell 1 is cylindrical lead and yellow-collation copper shell 1 or is aluminium bronze shell 1, described
1 lower end of shell be provided with annular slot, annular slot is provided with magnet ring 4, the annular slot setting of 1 lower end of shell
Close to 1 edge of shell, the depth of annular slot is identical as the height of magnet ring 4, is provided with samming in the shell 1
Slot 6, the annular diameters of annular slot are greater than the diameter of samming slot 6.1 upper end of shell is provided with upper cover 2, in 2 seal casinghousing 1 of upper cover
Samming slot 6, the distance between 6 bottom surface of samming slot and 1 lower end surface of shell be 0.2 ~ 1mm, 2 cross sectional shape of upper cover be T
Font, the vertical interconnecting piece 22 of flat part 21 and the setting of 21 lower end of flat part including integral structure, the vertical interconnecting piece
It is provided with external screw thread on 22, sealing ring 10, the samming in the shell 1 are provided between the flat part 21 and shell 1 of upper cover 2
The cross sectional shape of slot 6 is T font, and upper part is provided with internal screw thread, and samming medium 5 is contained in its underpart, and the upper cover 2 is erected
Direct-connected socket part 22 is connect with 6 top screw threads for fastening of samming slot, its outer suit insulation after the shell 1 and the installation of upper cover 2
Set 9, the thermal insulation separation hot jacket 9 is fiber glass coating or is nylon jacket.The middle part of the upper cover 2 is coated with temperature sensor
3, the lower part of samming slot 6 is inserted into 3 lower part of temperature sensor, is immersed in the samming medium 5 in samming slot 6, and the samming is situated between
Matter 5 is methyl-silicone oil, is provided with liquid injection hole 7 in the upper cover 2, liquid injection hole 7 is corresponding with the samming slot 6 on shell 1, described
One-way exhaust valve 8 is provided in liquid injection hole 7.
The temperature sensor 3 is sheath temperature sensor 3, including terminal box 31, screw rod 32, protection sleeve pipe 33, electricity
Lead 34, compensating wire 35 and temperature-measuring resistance element 36 are hindered, the terminal box 31 is arranged in 32 upper end of screw rod, protection sleeve pipe 33
Setting is provided with resistance lead 34 and temperature-measuring resistance element 36 in 32 lower end of screw rod, protection sleeve pipe 33, and resistance lead 34 passes through
Screw rod 32 is connect in terminal box 31 with compensating wire 35, and insulation filling particle 37, institute are filled in the protection sleeve pipe 33
The insulation filling particle 37 stated is the aluminium nitride insulating heat-conductive particle of purity >=95%, and the temperature-measuring resistance element 36 is AA grades
PT100 platinum resistance thermometer sensor,.The compensating wire 35 includes the screen being arranged in conducting wire, the insulating layer being wrapped in outside conducting wire and insulating layer
Layer is covered, the insulating layer is teflon insulation layer, and the shielded layer is stainless (steel) wire.
The utility model is applicable in high temperature measurement, and temperature measurement range is 90 DEG C~200 DEG C.In use, by sheath temperature
After sensor 3 is connect with 2 screw threads for fastening of upper cover, methyl-silicone oil is injected into samming slot 6 by liquid injection hole 7 as samming medium 5
It uses, is packed into exhaust check valve after filling in liquid injection hole 7, the utility model is then adsorbed on by measured object by magnet ring 4
The compensating wire 35 of sheath temperature sensor 3 is connect by the surface of body with temperature secondary meter, and the surface temperature of testee is logical
It crosses in the samming medium 5 that shell 1 is transmitted in samming slot 6, samming medium 5 heats up, and temperature sensor 3 detects samming medium 5
Temperature, and temperature transition signal with voltage or current signal transmitting temperature secondary meter and is read into temperature value.
Samming medium 5 is methyl-silicone oil, and the temperature measurement range that the utility model is applicable in is 90 DEG C~200 DEG C, methyl
Silicone oil is in heated temperature-rise period, methyl-silicone oil expansion, and pressure increases in samming slot 6, and one-way exhaust valve 8 is beaten under pressure
It opens, exhaust pressure relief.
It is noted that above-described embodiment is the affiliated technology neck to the illustrative and not limiting of technical solutions of the utility model
The equivalent replacement of domain those of ordinary skill or the other modifications made according to the prior art, as long as not exceeding the utility model skill
The thinking and range of art scheme, should be included within interest field required by the utility model.
Claims (8)
1. a kind of high temperature contact formula surface temperature sensor, it is characterised in that: including shell (1), upper cover (2), temperature sensor
(3), magnet ring (4) and samming medium (5), the shell (1) lower end are provided with annular slot, and annular slot is provided with magnet
Ring (4), the shell (1) is interior to be provided with samming slot (6), and shell (1) upper end is provided with upper cover (2), upper cover (2) seal casinghousing
(1) the samming slot (6) in, the upper cover (2) cross sectional shape are T font, flat part (21) and plate including integral structure
The vertical interconnecting piece (22) of portion (21) lower end setting, is provided with external screw thread, the shell on the vertical interconnecting piece (22)
(1) cross sectional shape of the samming slot (6) in is T font, and upper part is provided with internal screw thread, contains samming medium (5) in its underpart,
The vertical interconnecting piece (22) of the upper cover (2) is connect with samming slot (6) top screw threads for fastening, the middle part of the upper cover (2)
It is coated with temperature sensor (3), the lower part of samming slot (6) is inserted into temperature sensor (3) lower part, is immersed in samming slot (6)
In samming medium (5), the samming medium (5) is methyl-silicone oil, is provided with liquid injection hole (7), fluid injection in the upper cover (2)
Hole (7) is corresponding with samming slot (6) on shell (1), is provided with one-way exhaust valve (8) in the liquid injection hole (7).
2. high temperature contact formula surface temperature sensor according to claim 1, it is characterised in that: the shell (1) is
Cylindrical lead and yellow-collation copper shell is cylindrical aluminium bronze shell.
3. high temperature contact formula surface temperature sensor according to claim 1, it is characterised in that: the samming slot (6)
The distance between bottom surface and shell (1) lower end surface are 0.2 ~ 1mm.
4. high temperature contact formula surface temperature sensor according to claim 1, it is characterised in that: the shell (1) and
Its outer suit insulation set (9), the thermal insulation separation hot jacket (9) are fiber glass coating or are nylon jacket after upper cover (2) installation.
5. high temperature contact formula surface temperature sensor according to claim 1, it is characterised in that: under the shell (1)
The annular slot at end is positioned close to shell (1) edge, and the depth of annular slot is identical as the height of magnet ring (4), ring
The annular diameters of shape card slot are greater than the diameter of samming slot (6).
6. high temperature contact formula surface temperature sensor according to claim 1, it is characterised in that: the upper cover (2)
Sealing ring (10) are provided between flat part (21) and shell (1).
7. high temperature contact formula surface temperature sensor according to claim 1, it is characterised in that: the temperature sensor
(3) be sheath temperature sensor, including terminal box (31), screw rod (32), protection sleeve pipe (33), resistance lead (34), compensation lead
Line (35) and temperature-measuring resistance element (36), the terminal box (31) setting is in screw rod (32) upper end, protection sleeve pipe (33) setting
In screw rod (32) lower end, resistance lead (34) and temperature-measuring resistance element (36), resistance lead are provided in protection sleeve pipe (33)
(34) it passes through screw rod (32) to connect in terminal box (31) with compensating wire (35), filled with exhausted in the protection sleeve pipe (33)
Edge filler particles (37), the insulation filling particle (37) are the aluminium nitride insulating heat-conductive particle of purity >=95%, the survey
Warm resistive element (36) is AA grades of PT100 platinum resistance thermometer sensor,s.
8. high temperature contact formula surface temperature sensor according to claim 7, it is characterised in that: the compensating wire
It (35) include the shielded layer being arranged in conducting wire, the insulating layer being wrapped in outside conducting wire and insulating layer, the insulating layer is polytetrafluoro
Ethylene insulating layer, the shielded layer are stainless (steel) wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821683074.XU CN208847365U (en) | 2018-10-17 | 2018-10-17 | High Temperature Contact Surface Temperature Sensor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821683074.XU CN208847365U (en) | 2018-10-17 | 2018-10-17 | High Temperature Contact Surface Temperature Sensor |
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| Publication Number | Publication Date |
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| CN208847365U true CN208847365U (en) | 2019-05-10 |
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ID=66376293
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821683074.XU Active CN208847365U (en) | 2018-10-17 | 2018-10-17 | High Temperature Contact Surface Temperature Sensor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109253818A (en) * | 2018-10-17 | 2019-01-22 | 河南省计量科学研究院 | High temperature contact formula surface temperature sensor |
-
2018
- 2018-10-17 CN CN201821683074.XU patent/CN208847365U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109253818A (en) * | 2018-10-17 | 2019-01-22 | 河南省计量科学研究院 | High temperature contact formula surface temperature sensor |
| CN109253818B (en) * | 2018-10-17 | 2024-03-15 | 河南省计量测试科学研究院 | High-temperature contact type surface temperature sensor |
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