CN219714566U - Temperature measuring rod for detecting surface temperature of hole wall of digestion instrument - Google Patents
Temperature measuring rod for detecting surface temperature of hole wall of digestion instrument Download PDFInfo
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- CN219714566U CN219714566U CN202321350690.4U CN202321350690U CN219714566U CN 219714566 U CN219714566 U CN 219714566U CN 202321350690 U CN202321350690 U CN 202321350690U CN 219714566 U CN219714566 U CN 219714566U
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- temperature
- metal shell
- filler
- digestion instrument
- test tube
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- 230000029087 digestion Effects 0.000 title claims abstract description 49
- 229910052751 metal Inorganic materials 0.000 claims abstract description 60
- 239000002184 metal Substances 0.000 claims abstract description 60
- 238000012360 testing method Methods 0.000 claims abstract description 39
- 239000000945 filler Substances 0.000 claims abstract description 30
- 238000007789 sealing Methods 0.000 claims abstract description 13
- 239000007788 liquid Substances 0.000 claims abstract description 8
- 238000009529 body temperature measurement Methods 0.000 claims abstract description 6
- 239000011148 porous material Substances 0.000 claims abstract description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 8
- 229910002804 graphite Inorganic materials 0.000 claims description 7
- 239000010439 graphite Substances 0.000 claims description 7
- 229920002545 silicone oil Polymers 0.000 claims description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 229910052697 platinum Inorganic materials 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 238000005259 measurement Methods 0.000 abstract description 3
- 230000008447 perception Effects 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000000523 sample Substances 0.000 description 6
- 238000004458 analytical method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000003750 conditioning effect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000012795 verification Methods 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- 241000208125 Nicotiana Species 0.000 description 1
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- 239000002537 cosmetic Substances 0.000 description 1
- 238000011840 criminal investigation Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000006101 laboratory sample Substances 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000004445 quantitative analysis Methods 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000011573 trace mineral Substances 0.000 description 1
- 235000013619 trace mineral Nutrition 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Abstract
The utility model discloses a temperature measuring rod for detecting the surface temperature of a hole wall of a digestion instrument, which comprises a metal shell with an open upper end, wherein the outer configuration of the metal shell is coupled with a test tube hole of the digestion instrument, liquid or gaseous filler is filled in the metal shell, a sealing cover is arranged at the upper end of the metal shell and is used for sealing the filler in the metal shell, a temperature sensor extending into the metal shell is arranged at the inner end of the sealing cover, and a display is arranged at the outer end of the sealing cover and is used for displaying the temperature of the filler collected by the temperature sensor. The beneficial effects of the utility model are as follows: because the metal casing has better heat conductivity, therefore clear up the interior surface temperature of appearance test tube hole and in can in time conduct to the filler through the metal casing, because the filler is liquid or gaseous state again, so temperature sensor can extremely even perception metal casing conduction come the temperature to the accurate surface temperature value of clearing up appearance test tube hole pore wall that measures has temperature measurement convenient operation, the high technical advantage of measurement accuracy.
Description
Technical Field
The utility model relates to the technical field of temperature verification metering, in particular to a temperature measuring rod for verifying the surface temperature of a hole wall of a digestion instrument.
Background
The digestion instrument is a common sample pretreatment device, has quite wide application field, and is widely applied to the digestion pretreatment of sample analysis of main amount, inorganic trace elements and organic pollutants such as food, grain and oil, animals and plants, sediment, dust, medicines, tobacco, paper making, cosmetics, criminal investigation, petrochemical industry, environmental soil, atmosphere, water, import and export quarantine and the like in various laboratory samples at present. Most quantitative analysis techniques require that the sample be introduced in a liquid state, so pretreatment of the sample, especially digestion of solid samples, is of great importance in physicochemical analysis. In the digestion process, the temperature of the digestion instrument can influence the digestion completeness, and if the temperature cannot reach the set temperature, the sample is not completely digested, and then the final analysis result is seriously influenced by the error of pretreatment. Therefore, it is important to timely verify whether the working temperature of the digestion instrument meets the standard.
At present, most COD digestion instruments on the market are designed according to the size of a test tube, and the usage is as follows: and placing the components to be digested into a test tube, and placing the test tube into a test tube hole of a digestion instrument to be digested. In a traditional digestion instrument temperature verification mode, a thermocouple temperature sensor is usually placed in a test tube hole of the digestion instrument to detect temperature. However, converting thermocouple voltages to usable temperature readings requires a significant amount of signal conditioning. In the past, signal conditioning can consume a large amount of design time, and improper processing will introduce the error, leads to the precision to reduce, inaccurate temperature measurement.
Disclosure of Invention
In view of the above, the utility model provides a temperature measuring rod for detecting the surface temperature of the hole wall of a digestion instrument, which is used for detecting the surface temperature of the hole wall of the digestion instrument and aims to solve the technical defects existing in the traditional temperature detection mode.
In order to achieve the above purpose, the technical scheme of the utility model is as follows:
a temperature measuring stick for examining clear up appearance pore wall surface temperature, its key lies in: the digestion instrument test tube hole is characterized by comprising a metal shell with an open upper end, wherein the external configuration of the metal shell is coupled with a digestion instrument test tube hole, liquid or gaseous filler is filled in the metal shell, a sealing cover is arranged at the upper end of the metal shell and used for sealing the filler in the metal shell, a temperature sensor extending into the metal shell is arranged at the inner end of the sealing cover, and a display is arranged at the outer end of the sealing cover and used for displaying the temperature of the filler collected by the temperature sensor.
By adopting the structure, the temperature measuring rod is placed in the test tube hole of the digestion instrument, the temperature of the digestion instrument is set, the surface temperature in the test tube hole of the digestion instrument is transmitted to the filler through the metal shell in the heating process of the digestion instrument, and the temperature of the filler sensed by the temperature sensor is the surface temperature in the test tube hole of the digestion instrument and is displayed in real time by the display. Because the metal casing has better heat conductivity, therefore clear up the interior surface temperature of appearance test tube hole and in can in time conduct to the filler through the metal casing, because the filler is liquid or gaseous state again, so the temperature that the inside temperature sensor can extremely evenly perception metal casing conducted the temperature to the accurate surface temperature value of clearing up appearance test tube hole pore wall that measures has convenient operation, the high technical advantage of measurement accuracy.
As preferable: the filler is silicone oil. By adopting the structure, the silicone oil has excellent heat resistance and chemical stability, so that the temperature measuring rod can be continuously used.
As preferable: the metal shell is in a test tube shape, the upper part of the metal shell is cylindrical, and the lower part of the metal shell is provided with a downward extending arc structure.
As preferable: the metal shell is made of copper or iron or stainless steel.
As preferable: the outer wall of the metal shell is covered with flexible graphite, and the flexible graphite has elasticity. By adopting the structure, a gap is avoided between the test tube hole of the digestion instrument and the metal shell, so that the surface temperature of the test tube hole can be accurately transferred to the metal shell, and the accuracy of temperature measurement is further improved.
As preferable: the temperature sensor is a platinum resistance sensor.
Compared with the prior art, the utility model has the beneficial effects that:
by adopting the temperature measuring rod for detecting the surface temperature of the hole wall of the digestion instrument, the temperature measuring rod is placed into the test tube hole of the digestion instrument, the temperature of the digestion instrument is set, the surface temperature in the test tube hole of the digestion instrument is transmitted into the filler through the metal shell in the heating process of the digestion instrument, and the temperature of the filler sensed by the temperature sensor is the surface temperature in the test tube hole of the digestion instrument and is displayed in real time by the display. Because the metal casing has better heat conductivity, therefore clear up the interior surface temperature of appearance test tube hole and in can in time conduct to the filler through the metal casing, because the filler is liquid or gaseous state again, so the temperature that the inside temperature sensor can extremely evenly perception metal casing conducted the temperature to the accurate surface temperature value of clearing up appearance test tube hole pore wall that measures has convenient operation, the high technical advantage of measurement accuracy.
Drawings
FIG. 1 is a schematic structural diagram of a temperature measuring rod A for detecting the surface temperature of a hole wall of a digestion instrument;
FIG. 2 is an explosion schematic diagram of a temperature measuring rod A for detecting the surface temperature of the hole wall of the digestion instrument;
FIG. 3 is a cross-sectional view of a temperature measuring bar A for detecting the surface temperature of the hole wall of the digestion instrument;
fig. 4 is a reference diagram of the usage state of the temperature measuring stick a.
Detailed Description
The utility model is further described below with reference to examples and figures.
As shown in fig. 1 and 2, a temperature measuring rod a for detecting the surface temperature of the hole wall of a digestion instrument comprises a metal shell 1 with a tubular structure, wherein the upper end of the metal shell is open, the lower end of the metal shell is of an outwards-protruding arc-shaped structure, and a liquid or gaseous filler 2 is filled in the metal shell 1 in combination with fig. 3. The upper end of metal casing 1 is equipped with sealed lid 3, and the top in sealed lid 3 outside is equipped with display 5, and the inner middle part is equipped with a vertical downwardly extending's temperature sensor 4, and temperature sensor 4's upper end is connected with display 5, and the lower extreme extends to inside the metal casing 1 to fully contact with filler 2.
Referring to fig. 4, a digestion instrument B is provided, on which a plurality of test tube holes B1 are distributed, and when it is required to verify whether the surface temperature of the hole wall of the test tube hole B1 reaches the standard, the temperature measuring rod a provided in this embodiment is put into the test tube hole B1, and the metal housing 1 has a tubular structure adapted to the test tube hole B1, so that the metal housing 1 can be attached to the surface of the test tube hole B1. Then the temperature of the digestion instrument B is set, in the process of heating the digestion instrument B, the surface temperature of the wall of the test tube hole B1 can be conducted into the filler 2 through the metal shell 1, and the temperature of the filler 2 sensed by the temperature sensor 4 is the surface temperature of the wall of the test tube hole B1 and is displayed in real time by the display 5, and in the embodiment, the display 5 is a digital display, and the sensing temperature of the temperature sensor 4 can be directly displayed. Because the metal shell 1 is a metal layer and is made of copper or iron or stainless steel, the surface temperature of the wall of the test tube hole B1 can be timely conducted into the filler 2 through the metal shell 1, and meanwhile, the filler 2 can enable the transmitted heat to be distributed uniformly, so that the accuracy of the temperature measurement of the temperature sensor 4 is guaranteed.
Further, as shown in fig. 3, in this embodiment, the filler 2 filled in the metal casing 1 is specifically silicone oil, the silicone oil fills the whole inside of the metal casing 1, and the silicone oil does not vibrate after the sealing cover 3 seals the port of the metal casing 1. The digestion temperature of most digestion instruments B is 165 ℃, and the silicone oil has excellent heat resistance and chemical stability, so that the temperature detection method is suitable for most digestion instruments B, and the same temperature measuring rod A can be reused.
Referring again to fig. 3, the temperature sensor 4 extends to a central location of the filling 2 in order to test the temperature of the filling 2. In the present embodiment, the temperature sensor 4 is a platinum resistance sensor. By the design, the temperature of the filler 2, namely the surface temperature of the hole wall of the test tube hole B1, can be accurately detected.
Referring to fig. 2 and 4, since the outer wall of the metal casing 1 may be inserted into the test tube hole B1 and not be completely bonded, the outer wall of the metal casing 1 is covered with flexible graphite 6 adapted to the metal casing 1, and the flexible graphite 6 has elasticity and good thermal conductivity. The flexible graphite 6 with elasticity can make metal casing 1 and test tube hole B1 laminate completely for the surface temperature in the test tube hole B1 can conduct to in the filler 2 better, with ensure the accuracy of final temperature measurement, thereby guarantee the completeness that the sample cleared up.
Finally, it should be noted that the above description is only a preferred embodiment of the present utility model, and that many similar changes can be made by those skilled in the art without departing from the spirit and scope of the utility model as defined in the appended claims.
Claims (6)
1. A temperature measurement stick for examining clear up appearance pore wall surface temperature, its characterized in that: the novel digestion instrument test tube hole structure comprises a metal shell (1) with an open upper end, wherein the external configuration of the metal shell (1) is coupled with a digestion instrument test tube hole, a liquid or gaseous filler (2) is filled in the metal shell (1), a sealing cover (3) is arranged at the upper end of the metal shell (1) and used for sealing the filler (2) in the metal shell (1), a temperature sensor (4) extending into the metal shell (1) is arranged at the inner end of the sealing cover (3), and a display (5) is arranged at the outer end of the sealing cover (3) and used for displaying the temperature of the filler (2) collected by the temperature sensor (4).
2. The temperature measuring bar for detecting the surface temperature of the hole wall of the digestion instrument according to claim 1, wherein: the filler (2) is silicone oil.
3. The temperature measuring bar for detecting the surface temperature of the hole wall of the digestion instrument according to claim 1, wherein: the metal shell (1) is in a test tube shape, the upper part of the metal shell is cylindrical, and the lower part of the metal shell is provided with a downward extending arc structure.
4. The temperature measuring bar for detecting the surface temperature of the hole wall of the digestion instrument according to claim 1, wherein: the metal shell (1) is made of copper or iron or stainless steel.
5. The temperature measuring bar for detecting the surface temperature of the hole wall of the digestion instrument according to claim 1, wherein: the outer wall of the metal shell (1) is covered with flexible graphite (6), and the flexible graphite (6) has elasticity.
6. The temperature measuring bar for detecting the surface temperature of the hole wall of the digestion instrument according to claim 1, wherein: the temperature sensor (4) is a platinum resistance sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321350690.4U CN219714566U (en) | 2023-05-30 | 2023-05-30 | Temperature measuring rod for detecting surface temperature of hole wall of digestion instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321350690.4U CN219714566U (en) | 2023-05-30 | 2023-05-30 | Temperature measuring rod for detecting surface temperature of hole wall of digestion instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219714566U true CN219714566U (en) | 2023-09-19 |
Family
ID=88015029
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321350690.4U Active CN219714566U (en) | 2023-05-30 | 2023-05-30 | Temperature measuring rod for detecting surface temperature of hole wall of digestion instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219714566U (en) |
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2023
- 2023-05-30 CN CN202321350690.4U patent/CN219714566U/en active Active
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