CN107101736B - Temperature-detecting device - Google Patents
Temperature-detecting device Download PDFInfo
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- CN107101736B CN107101736B CN201710427027.2A CN201710427027A CN107101736B CN 107101736 B CN107101736 B CN 107101736B CN 201710427027 A CN201710427027 A CN 201710427027A CN 107101736 B CN107101736 B CN 107101736B
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- sliding block
- temperature
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- 239000000017 hydrogel Substances 0.000 claims abstract description 50
- 229910052751 metal Inorganic materials 0.000 claims abstract description 33
- 239000002184 metal Substances 0.000 claims abstract description 33
- 238000005259 measurement Methods 0.000 claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 16
- 230000008961 swelling Effects 0.000 claims description 12
- 238000012545 processing Methods 0.000 claims description 5
- 239000000499 gel Substances 0.000 claims description 4
- 229920000858 Cyclodextrin Polymers 0.000 claims description 3
- 229920002678 cellulose Polymers 0.000 claims description 3
- 239000001913 cellulose Substances 0.000 claims description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N ethylene glycol Natural products OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 3
- HFHDHCJBZVLPGP-UHFFFAOYSA-N schardinger α-dextrin Chemical compound O1C(C(C2O)O)C(CO)OC2OC(C(C2O)O)C(CO)OC2OC(C(C2O)O)C(CO)OC2OC(C(O)C2O)C(CO)OC2OC(C(C2O)O)C(CO)OC2OC2C(O)C(O)C1OC2CO HFHDHCJBZVLPGP-UHFFFAOYSA-N 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims description 3
- 244000003416 Asparagus officinalis Species 0.000 claims description 2
- 235000005340 Asparagus officinalis Nutrition 0.000 claims description 2
- -1 Formic acid glycol ester Chemical class 0.000 claims description 2
- 239000004677 Nylon Substances 0.000 claims description 2
- 239000002253 acid Substances 0.000 claims description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 2
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 2
- 230000009977 dual effect Effects 0.000 claims description 2
- 239000007789 gas Substances 0.000 claims description 2
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims description 2
- 229920001778 nylon Polymers 0.000 claims description 2
- 239000001301 oxygen Substances 0.000 claims description 2
- 229910052760 oxygen Inorganic materials 0.000 claims description 2
- 239000004033 plastic Substances 0.000 claims description 2
- 229920003023 plastic Polymers 0.000 claims description 2
- 229920000515 polycarbonate Polymers 0.000 claims description 2
- 239000004417 polycarbonate Substances 0.000 claims description 2
- 238000007789 sealing Methods 0.000 claims description 2
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 claims 3
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 claims 2
- 239000002202 Polyethylene glycol Substances 0.000 claims 1
- 235000019253 formic acid Nutrition 0.000 claims 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims 1
- 239000010931 gold Substances 0.000 claims 1
- 229910052737 gold Inorganic materials 0.000 claims 1
- 229920001223 polyethylene glycol Polymers 0.000 claims 1
- 238000012544 monitoring process Methods 0.000 abstract description 6
- 238000001514 detection method Methods 0.000 abstract description 5
- 230000003068 static effect Effects 0.000 abstract description 4
- 239000011257 shell material Substances 0.000 description 29
- 206010042674 Swelling Diseases 0.000 description 10
- 238000009529 body temperature measurement Methods 0.000 description 5
- 239000003292 glue Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 2
- 229910052753 mercury Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001988 toxicity Effects 0.000 description 2
- 231100000419 toxicity Toxicity 0.000 description 2
- 208000033999 Device damage Diseases 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 229910000746 Structural steel Inorganic materials 0.000 description 1
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K5/00—Measuring temperature based on the expansion or contraction of a material
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
A kind of temperature-detecting device for realizing temperature detection using the thermally sensitive characteristic of environment sensitive type hydrogel, including metal shell, environment sensitive type hydrogel, sliding block, built-in sliding rail, organic strip plate, graduation mark, organic shell.Device is contacted with testee, environment sensitive type hydrogel carries out heat exchange by metal shell and testee and makes different degrees of volume change, and sliding block is pushed to slide along built-in guide rail and finally to equilibrium state.When sliding block is finally static, temperature value can be read by graduation mark.The present invention can be realized the measurement and monitoring of temperature, fast response time and be hardly damaged, and structure is simple, at low cost, safety and stability and plant bulk is unrestricted.
Description
Technical field
The present invention relates to temperature detection technical fields, utilize environment sensitive type hydrogel in not equality of temperature more particularly, to a kind of
Volume sweell(ing) under degree changes the device to realize monitoring and detection to temperature.
Background technique
Temperature is closely bound up with our daily life, is the physical quantity for indicating the cold and hot degree of object.From the theory of molecular motion
Viewpoint sees that it is the mark of object molecular motion mean kinetic energy that temperature, which indicates the severe degree of molecular thermalmotion,.Temperature is a large amount of points
The collective of sub- warm-up movement shows, and has statistical significance.For individual molecules, temperature is nonsensical.Temperature can only lead to
It crosses certain characteristics that object varies with temperature to measure indirectly, and is used to measure the scale of object temperature numerical value temperature scale.It is advised
Determine the point of origin (zero point) of temperature and measures the basic unit of temperature.There are many unit for measuring temperature scale, daily life
In to use more be Celsius' thermometric scale (DEG C).
Currently, the commonplace temperature measuring tool used is mercurial thermometer and various forms of electronic temperature measurement instruments
Device.Wherein, mercurial thermometer is the most universal but is easier to damage, and mercury itself has toxicity；Electronic temperature measurement instrument
Though precisely response is fast for device measurement, its wider price of surveying range is relatively expensive, and the measurement result drift that electronic equipment is common
Moving phenomenon also will affect the accuracy of electronic temperature measurement instrument device, the popularity that disadvantages described above limits its scope of application.
Hydrogel is a kind of polymer with three-dimensional net structure, is divided into traditional hydrogel and environment sensitive type water-setting
Glue.Wherein, environment sensitive type hydrogel can make corresponding physical structure or chemically to the minor change of ambient temperature
Qualitative change, or even a kind of high-molecular gel is sported, environment sensitive type hydrogel is embodied in the micro- of ambient temperature
Small variation is very sensitive, can quickly make the variation of swelled form.
Summary of the invention
For the above problem existing for existing thermometric instruments, the applicant provides a kind of temperature-detecting device.This
Invention is introduced into the production of temperature measuring device using the thermally sensitive characteristic of environment sensitive type hydrogel, is allowed into
Ambient temperature height is measured for completed device, has and fast response time and is hardly damaged, structure is simple, and at low cost, safety is steady
The advantages that fixed and plant bulk is unrestricted.
Technical scheme is as follows:
A kind of temperature-detecting device including metal shell, the environment sensitive type hydrogel being filled in metal shell, is attached to
Built-in sliding rail on metal shell inner wall, the organic strip plate for being stuck in the sliding block slided on built-in sliding rail, being parallel to built-in sliding rail,
Positioned at the graduation mark of organic strip plate surface and the organic shell of sealing metal outer cover port；The environment sensitive type water-setting
It is sealed up for safekeeping by the sliding block glue one end.
Organic strip plate and organic shell select colourless or near colorless organic plastics, and thickness is equal and fusing point exists
Between 230 DEG C~260 DEG C.
Organic strip plate and organic shell select polyethylene terephthalate, nylon or polycarbonate.
Organic strip plate and metal shell uniform thickness are simultaneously embedded on metal shell, are tightly combined no leakage with metal shell
Gas.
1 micron of hole below of diameter is distributed on the sliding block, sliding block slides along built-in sliding rail, and sliding block and sliding rail use
Transition fit, gapless.
The organic shell is threadedly locked with metal shell, is connection shape inside metal shell and organic shell
State is isolated from the outside.
The environment sensitive type hydrogel is high-temperature shrinkage type hydrogel.
The environment sensitive type hydrogel is cellulose graft cyclodextrin hydrogel, poly- lucid asparagus oxygen acid hydrogel or poly- second
Glycol based aquagel.
The environment sensitive type hydrogel is handled through nano combined processing, microballoon combined processing or dual network.
The environment sensitive type swelling behavior rate is s=(VT-V0)/V0, wherein VTFor at temperature any in measurement range
The volume of environment sensitive type hydrogel, V0The volume of environment sensitive type hydrogel when being impregnated for the first beginning and end；Swelling ratio s is in temperature
Linear relationship.
The present invention is beneficial to be had the technical effect that
The working principle of temperature measuring device of the present invention is as follows: utilizing the thermally sensitive characteristic of hydrogel, passes through water-setting
The degree of swelling of glue measures temperature value, because device architecture it is simple thus can be made volume very little for example it is pocket it is even more small without
Influence its measurement accuracy, can duplicate measurements and response speed it is very fast.Due to the introducing of metal shell and organic material, so that should
Measuring device is hardly damaged.In addition, hydrogel does not have toxicity, this feature guarantees will not be right in measuring device damage
Environment, human body and determinand damage.The excellent conductivity of heat of metal shell is allowed to time of measuring compared to common mercury temperature
Meter greatly shortens, meanwhile, it also has surveying range wider, and there is no measurement results to drift about, and cost is compared with electronic temperature measurement instrument
The advantages such as device is low.
For the present invention by the way that environment sensitive type hydrogel to be sealed in metal shell inner cavity, metal shell and organic shell are logical
Engagement thread locking is crossed, inner cavity is divided into left and right two parts by sliding block, and left end inner cavity is full of environment sensitive type hydrogel, and right chamber passes through
Sliding block is connected with left chamber, and and external environs.Sliding block can slide along the sliding rail built in inside of metal outershell, when environment is quick
When the heated generation volume change of sense type hydrogel is with dehydration or water suction, water is oozed out or is infiltered in the middle part of sliding block.Most according to sliding block
The graduation mark position of corresponding organic strip plate obtains the temperature value of object under test when static eventually, thus realize the measurement of temperature with
Monitoring function.
The application method of the present apparatus are as follows: will test device and place vertically, and metal shell is contacted with testee, be allowed to
Heat exchange occurs with testee and is finally reached balance.When the detection device absorbs or discharges heat, environment sensitive type water
The temperature of gel also changes therewith.Due to the thermally sensitive characteristic of environment sensitive type hydrogel, its own volume changes.
In this course, it pushes sliding block to slide along built-in sliding rail, the temperature of testee can be read by graduation mark when final static
Degree.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of temperature-detecting device of the present invention.In figure: 1 metal shell, 2 environment sensitive type hydrogels,
3 sliding blocks, sliding rail built in 4,5 organic strip plates, 6 graduation marks, 7 organic shells.
Fig. 2 is selected swelling behavior rate and temperature relation figure in temperature-detecting device example of the present invention.
Specific embodiment
With reference to the accompanying drawings and examples, the present invention is specifically described.
As shown in Figure 1,1 is metal shell, 2 be environment sensitive type hydrogel, and 3 be sliding block, and 4 be built-in sliding rail, and 5 be organic
Strip plate, 6 be graduation mark, and 7 be organic shell.Metal shell 1 is threadedly locked with organic shell 7, and sliding block 3 is by inner cavity
It is divided into left and right two parts, left chamber is full of environment sensitive type hydrogel 2, and right chamber is connected by sliding block with left chamber, and and external rings
Border isolation, sliding block 3 and built-in sliding rail 4 use transition fit, and can be distributed in its sliding, sliding block 31 micron of diameter it is below
Hole.For organic strip plate 5 with 1 uniform thickness of metal shell and inside it, graduation mark 6 is located at organic 5 surface of strip plate.
By foregoing description as it can be seen that the present invention provides a kind of swellings using environment sensitive type hydrogel to realize that temperature is examined
Survey the device with monitoring.It is first calibrated, is such as placed in 0 DEG C of refrigerator using preceding, observed it and correspond to whether registration is in zero
Graduation position toward chamber addition little water or should be put at this time if there is deviation then to illustrate that hydrogel used has lost/absorbed water excessively
It is set to lose part water in high temperature, until corresponding scale is at zero position when sliding block 3 terminates in 0 DEG C of environment.Together
When in 0 DEG C, cannot have excessive moisture in chamber, be said if 3 final position of sliding block can not be made to be in zero graduation position always
This bright environment sensitive type hydrogel has failed, and should replace.In the case where calibrating errorless, by metal shell 1 itself and measured object
After body contact, environment sensitive type hydrogel 2 carries out energy exchange from object under test by metal shell 1 and generates different volumes
Variation.This will push sliding block 3 to slide along built-in guide rail 4, when sliding block 3 is final static, read specific temperature by graduation mark 6
Numerical value realizes the effect of temperature detection and monitoring.
Specific embodiment:
Metal shell 1 uses low-alloy high-tensile structural steel Q420 (15MnVN), and environment sensitive type hydrogel 2 is cellulose
Grafted cyclodextrin hydrogel, this hydrogel impregnate 60 minutes in 0 DEG C of water, reach its swelling to greatest extent about 35%.It will
It is placed in 3 left side metal cavity of sliding block and full of the cavity, and corresponding graduation mark 6 is 0 DEG C at this time, the choosing of 3 making material of sliding block
With Teflon, (density value is 2.14~2.2g/cm3, heat resisting temperature~260 DEG C), organic strip plate 5 and organic shell 7 are selected
Bright acrylic board (acrylic board heat distortion temperature is 96 DEG C).
Fig. 2 show swelling ratio s (unit %) and temperature T the straight line fitting relationship of selected hydrogel: s=aT+b,
Middle swelling ratio: s=(VT-V0)/V0, wherein VTFor the volume of environment sensitive type hydrogel at temperature any in measurement range, V0For
The volume of environment sensitive type hydrogel when the first beginning and end impregnate.Hydrogel volume used is V when just the beginning and end impregnate in Fig. 20, at 0 DEG C
Hydrogel volume is about 1.35V after impregnating in water 60 minutes0, hydrogel volume is about after impregnating in 50 DEG C of water 60 minutes
1.28V0, hydrogel volume is about 1.23V after impregnating in 85 DEG C of water 60 minutes0Etc..According to a series of in different temperatures
Volume corresponding to hydrogel after impregnating in water 60 minutes, carries out linear fit s=aT+b, obtains a=-0.15, b=
35.62, i.e. swelling behavior rate s and temperature T straight line fitting relationship may be expressed as: s=-0.15T+35.62.In conjunction with swelling ratio
Definition s=(VT-V0)/V0, so as to obtain VT=V0(- 0.15T+36.62) is to get the relational expression arrived between volume and temperature.
Within the scope of 0~80 DEG C, according to bulking value V corresponding to any temperatureTIt can determine temperature value T at this time, and set accordingly
The scale value of the measuring device, to realize the purpose of temperature measurement and monitoring.
Claims (7)
1. a kind of temperature-detecting device, which is characterized in that including metal shell, the environment sensitive type water being filled in metal shell
Gel, is stuck in the sliding block slided on built-in sliding rail, is parallel to having for built-in sliding rail the built-in sliding rail being attached on metal shell inner wall
Captain's batten, positioned at the graduation mark of organic strip plate surface and the organic shell of sealing metal outer cover port；The environment is quick
It is sealed up for safekeeping by the sliding block sense type hydrogel one end；Hole is distributed in the middle part of the sliding block；
The environment sensitive type hydrogel is cellulose graft cyclodextrin hydrogel, poly- lucid asparagus oxygen acid hydrogel or polyethylene glycol
Based aquagel；
The environment sensitive type swelling behavior rate is s=(VT-V0)/V0, wherein VTFor environment at temperature any in measurement range
The volume of sensitive hydrogel, V0The volume of environment sensitive type hydrogel when being impregnated for the first beginning and end；Swelling ratio s and temperature are linear
Relationship；
It is first calibrated, is placed in 0 DEG C of refrigerator using preceding, observed it and correspond to whether registration is in zero graduation position, if
There is deviation then to illustrate that hydrogel used has lost/absorbed water excessively, should add little water toward chamber at this time or be put in high temperature makes it
Part water is lost, until corresponding scale is at zero position when sliding block terminates in 0 DEG C of environment；Simultaneously in 0 DEG C, chamber
In cannot have excessive moisture, illustrate this environment sensitive type water if sliding block final position can not be made to be in zero graduation position always
Gel has failed, and should replace.
2. the apparatus according to claim 1, which is characterized in that organic strip plate is selected colourless or close with organic shell
Like colourless organic plastics, thickness is equal and fusing point is between 230 DEG C~260 DEG C.
3. the apparatus according to claim 1, which is characterized in that organic strip plate and organic shell are selected and gathered to benzene two
Formic acid glycol ester, nylon or polycarbonate.
4. the apparatus according to claim 1, which is characterized in that organic strip plate and metal shell uniform thickness are simultaneously embedded in gold
Belong on shell, is tightly combined no gas leakage with metal shell.
5. the apparatus according to claim 1, which is characterized in that 1 micron of hole below of diameter is distributed on the sliding block,
Sliding block slides along built-in sliding rail, and sliding block and sliding rail use transition fit, gapless.
6. the apparatus according to claim 1, which is characterized in that the organic shell is threadedly locked with metal shell
It tightly, is connection state inside metal shell and organic shell.
7. the apparatus according to claim 1, which is characterized in that the environment sensitive type hydrogel through it is nano combined processing,
Microballoon combined processing or dual network processing.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710427027.2A CN107101736B (en) | 2017-06-08 | 2017-06-08 | Temperature-detecting device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710427027.2A CN107101736B (en) | 2017-06-08 | 2017-06-08 | Temperature-detecting device |
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| CN107101736A CN107101736A (en) | 2017-08-29 |
| CN107101736B true CN107101736B (en) | 2019-08-27 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111393563B (en) * | 2019-01-02 | 2023-04-07 | 湖南工业大学 | Preparation method and monitoring die of temperature-sensitive hydrogel |
| CN110142146B (en) * | 2019-06-03 | 2021-04-09 | 临沂长荣环保科技有限公司 | Carbon slag recycling device in aluminum electrolysis industry |
| CN113390521B (en) * | 2021-07-09 | 2023-12-12 | 江苏集萃智能液晶科技有限公司 | Temperature indicating device |
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