CN113267261A - Protection structure and temperature measurement subassembly of temperature measuring device - Google Patents
Protection structure and temperature measurement subassembly of temperature measuring device Download PDFInfo
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- CN113267261A CN113267261A CN202110685008.6A CN202110685008A CN113267261A CN 113267261 A CN113267261 A CN 113267261A CN 202110685008 A CN202110685008 A CN 202110685008A CN 113267261 A CN113267261 A CN 113267261A
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- 238000009529 body temperature measurement Methods 0.000 title abstract description 24
- 239000002826 coolant Substances 0.000 claims abstract description 12
- 230000001681 protective effect Effects 0.000 claims description 19
- 239000003292 glue Substances 0.000 claims description 10
- 238000001816 cooling Methods 0.000 claims description 9
- 230000013011 mating Effects 0.000 claims description 9
- 210000001503 joint Anatomy 0.000 claims 1
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 239000011521 glass Substances 0.000 description 18
- 238000000034 method Methods 0.000 description 17
- 238000007711 solidification Methods 0.000 description 16
- 230000008023 solidification Effects 0.000 description 16
- 230000008569 process Effects 0.000 description 14
- 239000000126 substance Substances 0.000 description 12
- 239000000463 material Substances 0.000 description 10
- 238000002844 melting Methods 0.000 description 9
- 230000008018 melting Effects 0.000 description 9
- 238000010438 heat treatment Methods 0.000 description 7
- 230000006698 induction Effects 0.000 description 7
- 239000007788 liquid Substances 0.000 description 7
- 239000002184 metal Substances 0.000 description 7
- 229910052751 metal Inorganic materials 0.000 description 7
- 230000008961 swelling Effects 0.000 description 6
- 239000003795 chemical substances by application Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 238000007496 glass forming Methods 0.000 description 5
- 239000002927 high level radioactive waste Substances 0.000 description 5
- 238000011160 research Methods 0.000 description 5
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 4
- 239000000919 ceramic Substances 0.000 description 4
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000010309 melting process Methods 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- 239000005388 borosilicate glass Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000009833 condensation Methods 0.000 description 3
- 230000005494 condensation Effects 0.000 description 3
- 239000005365 phosphate glass Substances 0.000 description 3
- 230000002285 radioactive effect Effects 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 2
- 238000001354 calcination Methods 0.000 description 2
- JKWMSGQKBLHBQQ-UHFFFAOYSA-N diboron trioxide Chemical compound O=BOB=O JKWMSGQKBLHBQQ-UHFFFAOYSA-N 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000002386 leaching Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 239000012857 radioactive material Substances 0.000 description 2
- 239000002901 radioactive waste Substances 0.000 description 2
- 239000000376 reactant Substances 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 239000011800 void material Substances 0.000 description 2
- 229910019142 PO4 Inorganic materials 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
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- 239000013078 crystal Substances 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000002241 glass-ceramic Substances 0.000 description 1
- 239000010808 liquid waste Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000006060 molten glass Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 239000010970 precious metal Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000941 radioactive substance Substances 0.000 description 1
- 239000011214 refractory ceramic Substances 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002915 spent fuel radioactive waste Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/08—Protective devices, e.g. casings
- G01K1/12—Protective devices, e.g. casings for preventing damage due to heat overloading
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/02—Constructional details
- G01J5/04—Casings
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/02—Constructional details
- G01J5/04—Casings
- G01J5/041—Mountings in enclosures or in a particular environment
- G01J5/042—High-temperature environment
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/08—Protective devices, e.g. casings
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/08—Protective devices, e.g. casings
- G01K1/10—Protective devices, e.g. casings for preventing chemical attack
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
- G01K7/02—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using thermoelectric elements, e.g. thermocouples
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Measuring Temperature Or Quantity Of Heat (AREA)
- Monitoring And Testing Of Nuclear Reactors (AREA)
Abstract
The embodiment of the invention discloses a protection structure and a temperature measurement assembly of a temperature measurement device, wherein the protection structure of the temperature measurement device comprises: the tube cavity of the first tube is used for accommodating the body of the temperature measuring device, and a coolant is arranged in the tube wall of the first tube to cool the body; the lumen of the second pipe fitting is used for accommodating the temperature measuring end of the temperature measuring device; and the connecting piece is arranged on the outer sides of the pipe walls of the first pipe fitting and the second pipe fitting so as to butt one end of the first pipe fitting with one end of the second pipe fitting. According to the protection structure and the temperature measurement assembly of the temperature measurement device, the body of the temperature measurement device can be cooled, and the temperature measurement end of the temperature measurement device can be protected, so that the service life of the temperature measurement device is prolonged while the accuracy of a temperature measurement result is ensured.
Description
Technical Field
The invention relates to the technical field of instruments and meters, in particular to a protection structure of a temperature measuring device and a temperature measuring assembly.
Background
With the rapid development of the nuclear industry, how to treat a large amount of radioactive waste generated in the nuclear industry is an urgent problem to be solved, and the solidification treatment is a method capable of treating the radioactive waste more safely and efficiently.
The solidification refers to the selection of a solidification matrix with higher stability to contain the nuclide for a long time, and common solidification methods include glass solidification, ceramic solidification, glass ceramic solidification, artificial rock solidification, various cement solidification and the like. The glass curing technology is mature, and the glass curing body has the advantages of low leaching rate, stable irradiation and the like, so that the glass curing technology becomes a hotspot of curing technology research.
The glass solidification is that the high-level radioactive waste liquid and a glass substrate are mixed according to a certain proportion, calcined, melted and cast at high temperature, and then are converted into a stable glass solidified body after annealing. Phosphate glass curing, in which phosphoric acid, phosphate or other phosphorus-containing substances are used as glass formers, and borosilicate glass curing, in which silica and boron trioxide are used as glass formers.
The research on glass solidification begins at the end of the 50 th 20 th century, phosphate glass solidification is studied more in the early stage, and then the phosphate glass solidified body is found to form crystals after being stored for a period of time, the transparency is lost, the leaching rate of radioactive nuclide is obviously increased, the phosphoric acid is strong in corrosivity, and a melter and a solidification tail gas pipeline need to use platinum as materials. The focus of research work has thus turned to borosilicate glass curing. The research result proves that the borosilicate glass is a more ideal high-level liquid waste curing substrate.
So far, glass solidification has been developed for 4 generations, and the 1 st generation melting process is an induction heating metal melting furnace, a one-step pot process. The pot-type process is characterized in that evaporation concentrated solution of high-level radioactive waste liquid and a glass forming agent are simultaneously and respectively added into a metal pot, the metal pot is heated by medium-frequency induction and is divided into a plurality of zones, the waste liquid is evaporated in the pot, is melted and clarified together with the glass forming agent, and finally, the melted glass is discharged from a freeze-thaw valve at the lower end.
The 2 nd generation melting process is a two-step process of a rotary calcining path and an induction heating metal melting furnace, which is a process developed on a tank type process, wherein in the 1 st step, high-level waste liquid is calcined in a rotary calcining furnace to form solid calcined substances, in the 2 nd step, the calcined substances and a glass forming agent are respectively added into a medium-frequency induction heating metal melting furnace, and are melted and cast into glass, and finally the glass is injected into a glass storage tank through a freeze-thaw valve. The process has the advantages of continuous production, large treatment capacity and complex process and short service life of the smelting furnace.
The 3 rd generation melting process is a joule heating ceramic furnace process, which was originally developed by the north-west laboratories of the pacific united states of america (electric melting furnace for short), and the joule heating ceramic furnace is heated by electrodes, and the furnace body is made of refractory ceramic materials. The high level radioactive waste liquid and the glass forming agent are respectively added into a melting furnace, and the high level radioactive waste liquid is evaporated in the melting furnace and is melted and cast into glass together with the glass forming agent. The melted glass is discharged from a bottom freeze-thaw valve or an overflow port in a batch or continuous manner. The joule heating ceramic furnace has the disadvantages of large process throughput, long service life (about 5 years), large volume of the furnace, difficulty in decommissioning, and possibility of deposition of precious metals at the bottom of the furnace, thereby affecting discharge.
The 4 th generation melting process is a cold crucible induction furnace process. The cold crucible is heated by high-frequency induction, the outer wall of the furnace body is provided with a water-cooling sleeve and a high-frequency induction coil, and refractory materials and electrodes are not needed for heating. High frequency (100-. The cold crucible can be used for melting waste metal, processing spent fuel cladding, burning high-chlorine high-sulfur waste plastic and waste resin and the like besides casting glass.
The cold crucible furnace has the advantages of high melting temperature, more objects to be treated, no direct contact between the molten glass and metal, low corrosivity, long service life of the furnace body and simple tail gas treatment. Based on this, the cold crucible technology is a hot spot technology of intensive research in China and even all over the world.
Whichever process is used for the solidification treatment of radioactive substances, a thermometric device is required to continuously monitor the temperature of the radioactive reactants, however, the radioactive reactants in the molten state are generally highly corrosive and the temperature inside the reaction vessel is extremely high, which poses a great challenge to the strength and life of the thermometric device.
Disclosure of Invention
In view of the above, the present invention has been made to provide a protection structure and a connector for a temperature measuring device that overcome or at least partially solve the above problems.
According to an embodiment of the present invention, there is provided a protection structure of a temperature measuring device, including: the tube cavity of the first tube is used for accommodating the body of the temperature measuring device, and a coolant is arranged in the tube wall of the first tube to cool the body; the lumen of the second pipe fitting is used for accommodating the temperature measuring end of the temperature measuring device; and the connecting piece is arranged on the outer sides of the pipe walls of the first pipe fitting and the second pipe fitting so as to butt one end of the first pipe fitting with one end of the second pipe fitting.
Optionally, the pipe wall of the first pipe includes a first shell and a second shell, the first shell forms a pipe cavity of the first pipe, the second shell is disposed outside the first shell, and a cooling cavity is formed between the first shell and the second shell and is used for accommodating the coolant.
Optionally, the first tubular member has an outer diameter greater than an outer diameter of the second tubular member; the inner diameter of the joint of the connecting piece and the first pipe fitting is larger than that of the joint of the connecting piece and the second pipe fitting.
Optionally, the inner wall of the connector is adhered to the walls of the first and second pipe elements.
Optionally, a first sub-matching portion is formed at one end of the inner wall of the connecting piece, a second sub-matching portion is formed at one end of the pipe wall of the first pipe fitting, and the first sub-matching portion is connected with the second sub-matching portion in a matching manner; the other end of the inner wall of the connecting piece is provided with a third sub-matching part, one end of the pipe wall of the second pipe fitting is provided with a fourth sub-matching part, and the third sub-matching part is connected with the fourth sub-matching part in a matching mode.
Optionally, a limiting portion is formed on an inner wall of the connecting member, the first sub-fitting portion is formed on one side of the limiting portion, and the third sub-fitting portion is formed on the other side of the limiting portion.
Optionally, the limiting part is an annular protrusion.
Optionally, the limiting part is a slope-shaped protrusion.
Optionally, when the first pipe fitting and the second pipe fitting are connected with the connecting piece, the first pipe fitting enters the connecting piece from one side of the limiting portion, and the second pipe fitting enters the connecting piece from the other side of the limiting portion.
Optionally, the first sub-matching part and the second sub-matching part are in threaded connection; the third sub-matching part is in threaded connection with the fourth sub-matching part in a matching manner.
Optionally, glue is laid at the matching connection position of the first sub-matching part and the second sub-matching part; glue is laid at the matching connection position of the third sub-matching part and the fourth sub-matching part.
Optionally, the outer wall of the connector is cylindrical.
Optionally, the outer wall of the connecting piece is funnel-shaped;
optionally, one end of the second pipe fitting is formed with a bulging portion having an outer diameter substantially the same as an outer diameter of the first pipe fitting, and the connecting member abuts the bulging portion with one end of the first pipe fitting.
Optionally, one end of the connector is formed with a stop to limit the bulge within the connector.
There is also provided, in accordance with an embodiment of the present invention, a temperature measurement assembly, including: a temperature measuring device; and a protective structure according to any one of the above, wherein the temperature measuring device is arranged in the protective structure. According to the protection structure and the temperature measurement assembly of the temperature measurement device, the body of the temperature measurement device can be cooled, and the temperature measurement end of the temperature measurement device is protected, so that the service life of the temperature measurement device is prolonged while the accuracy of a temperature measurement result is ensured.
Drawings
FIG. 1 is a schematic diagram of a protection architecture according to one embodiment of the present invention;
FIG. 2 is a schematic diagram of a protection architecture according to yet another embodiment of the present invention;
FIG. 3 is a schematic diagram of a protection architecture according to yet another embodiment of the present invention;
FIG. 4 is a schematic view of a connector according to one embodiment of the present invention;
FIG. 5 is a schematic view of a connector according to yet another embodiment of the present invention;
FIG. 6 is a schematic view of a connector according to yet another embodiment of the present invention;
fig. 7 is a schematic diagram of a protection structure according to still another embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention. It should be apparent that the described embodiment is one embodiment of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the invention without any inventive step, are within the scope of protection of the invention.
Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs.
According to an embodiment of the present invention, a protection mechanism for a temperature measuring device is provided, and the temperature measuring device may be any suitable device for measuring temperature in the prior art, such as various types of contact temperature measuring devices, such as thermocouples, temperature sensors, and the like, and in some embodiments, the temperature measuring device may also be a non-contact temperature measuring device, such as an infrared thermometer, a visible light thermometer, and the like.
The temperature measuring device generally includes a body and a temperature measuring end, and for a contact type temperature measuring device, the temperature measuring end may be a portion for contacting with a substance to be measured, such as a hot end of a thermocouple, and for a non-contact type temperature measuring device, the temperature measuring end may be a portion for acquiring information of the substance to be measured, such as an infrared emitting device of an infrared thermometer, and the like. The body of the temperature measuring device can be generally referred to as the part of the temperature measuring device except the temperature measuring end.
The following describes embodiments of the present invention in detail with a thermocouple as the temperature measuring device 200.
Referring to fig. 1 to 3, a protection structure 100 of a temperature measuring device according to an embodiment of the present invention includes: the first pipe fitting 10 is provided with a pipe cavity for accommodating the body 210 of the temperature measuring device 200, and a coolant is arranged in the pipe wall of the first pipe fitting 10 to cool the body 210; a second pipe fitting 20, wherein the lumen of the second pipe fitting 20 is used for accommodating the temperature measuring end 220 of the temperature measuring device 200; and a connector 30, wherein the connector 30 is arranged outside the pipe walls of the first pipe fitting 10 and the second pipe fitting 10 so as to butt one end of the first pipe fitting 10 with one end of the second pipe fitting 20.
Unlike the temperature measuring end 220 of the temperature measuring device 200, the body 210 of the temperature measuring device 200 generally has poor heat resistance, and the cost is high when the body 210 of the temperature measuring device 200 is also configured to have good heat resistance. However, in some usage scenarios, the body 210 of the temperature measuring device 200 also needs to bear a higher temperature, for example, when measuring the temperature of the inside of the liquid or molten temperature measuring substance, the temperature measuring device 200 needs to be inserted into the temperature measuring substance, so that the body 210 of the temperature measuring device 200 may contact part of the temperature measuring substance. For example, when the temperature of the material to be measured in the reaction vessel such as a melting furnace or a cold crucible needs to be measured, the temperature measuring device 200 needs to be inserted into the reaction vessel. For this reason, the embodiment of the present invention provides the first pipe member 10, and the coolant in the first pipe member 10 can cool the body 210 of the temperature measuring device 200, thereby improving the service life of the temperature measuring device 200.
Further, the second tubular member 20 is provided to receive the temperature measuring end 220 of the temperature measuring device 200 according to the embodiment of the present invention. In some embodiments, when the temperature measuring device 200 is a contact temperature measuring device, the second tube 20 can be made of a heat conductive material, so that the heat of the substance to be measured can be better transferred to the temperature measuring end 220, and the accuracy of the temperature measuring result can be ensured. In some embodiments, when the temperature measuring device 200 is a non-contact temperature measuring device, such as an optical temperature measuring device, for example, an infrared thermometer, a visible thermometer, etc., the second tube 20 can be made of a light-transmitting material to ensure the accuracy of the temperature measurement result.
In some embodiments, the material of the second tube 20 can be selected according to the specific use scenario, for example, when the thermometric apparatus 200 is used for the solidification process of radioactive materials, since the radioactive materials are highly corrosive and usually have a high temperature around 1600 ℃, which means that the second tube 20 also needs to be resistant to corrosion, high temperature, and severe temperature changes, in this case, the second tube 20 can be made of a mixture of alumina material and zirconia material to better protect the thermometric end 220.
Since the first pipe member 10 is provided with the coolant and the second pipe member 20 is not provided, so that the temperature difference between the first pipe member 10 and the second pipe member 20 may be large in the use state, it is difficult for the conventional connection method, such as welding, bonding, etc., to ensure the stable connection of the first pipe member 10 and the second pipe member 20, for which the embodiment of the present invention provides the connection member 30 at the outer side of the first pipe member 10 and the second pipe member 20 to fixedly connect one end of the first pipe member 10 and one end of the second pipe member 20, ensuring the stability of the protection structure 100.
In some embodiments, the end of the first tube 10 away from the second tube 20 can be open, and the end of the second tube 20 away from the first tube 10 can be closed, so that the temperature measuring device 200 can enter the protection structure 100 from the open end of the first tube 10, and the closed end of the second tube 20 abuts against the temperature measuring end 220 of the temperature measuring device 200, thereby keeping the temperature measuring device 200 in the protection structure 100. In some embodiments, a fixing member (not shown) may be disposed in the first pipe 10 and/or the second pipe 20 to better fix the temperature measuring device 200 in the protection structure 100. In some embodiments, an end of the first pipe 10 away from the second pipe 20 may be provided with a cover, so that after the temperature measuring device 200 is placed inside the protection structure 100, the cover may be used to close the first pipe 10 to better protect the temperature measuring device 200. In some embodiments, the cover may be provided with a plurality of through holes through which the terminals of the temperature measuring device 200 can pass out from the lumen of the first tube 10 to derive the temperature measuring data of the temperature measuring device 200.
In some embodiments, the lumens of the first and second tube members 10 and 20 of the protection structure 100 may be adapted to the shape of the temperature measuring device 200, for example, when the temperature measuring device 200 is a cylindrical thermocouple, the diameters of the lumens of the first and second tube members 10 and 20 may be substantially the same as the outer diameter of the temperature measuring device 200, so that the inner wall of the first tube member 10 is close to the outer wall of the temperature measuring device 200, thereby better cooling the temperature measuring device 200. In such an embodiment, if the temperature measuring device 200 fails, the temperature measuring device 200 may be removed from the protective structure 100 and replaced with a new temperature measuring device 200. When the temperature measurement requirement changes, for example, the temperature range of the substance to be measured changes, the thermocouple wire material of the thermocouple needs to be replaced, or the temperature measurement device 200 can be directly taken out of the protection structure 100 for replacement.
Preferably, the inner diameters of the lumens of the first tube member 10 and the second tube member 20 are the same, so that the first tube member 10 and the second tube member 20 can form a complete lumen when one ends of the first tube member 10 and the second tube member 20 are butted.
In some embodiments, the lumens of the first tube 10 and the second tube 20 may have other suitable shapes, for example, the first tube 10 and the second tube 20 may be provided with larger lumens, so as to be suitable for different shapes and different types of temperature measuring devices 200, and when different temperature measuring requirements are met, the suitable temperature measuring device 200 may be selected to be placed in the protection mechanism 100 for temperature measurement, thereby further reducing the use cost.
In some embodiments, still referring to fig. 1 to 3, the pipe wall of the first pipe 10 includes a first shell 11 and a second shell 12, the first shell 11 forms a pipe cavity of the first pipe 10, the second shell 12 is disposed outside the first shell 10, a cooling cavity 13 is formed between the first shell 11 and the second shell 12, and the cooling cavity 13 is used for containing a coolant.
In some embodiments, the cooling chamber 13 may be provided therein with a condensation duct 12, the condensation duct 12 may extend along the first housing 11 in a spiral shape, and a coolant is provided in the condensation duct 12, thereby enhancing a cooling effect.
In some embodiments, the outer diameter of the first tubular member 10 is greater than the outer diameter of the second tubular member 20, and the inner diameter at the junction of the connector 30 and the first tubular member 10 is greater than the inner diameter at the junction of the connector 30 and the second tubular member 10. It will be appreciated that the need for a coolant to be provided in the second tube member 20 means that the second tube member 20 needs to have a thicker tube wall, for example, the tube wall of the first tube member 10 in the above embodiment includes the first shell 11 and the second shell 12. However, the second pipe 20 does not need to be provided with a coolant, and for this reason, a relatively thin pipe wall may be provided for the second pipe 20, so that the outer diameter of the second pipe 20 is smaller than the outer diameter of the first pipe 10, thereby saving the manufacturing cost of the second pipe 20, avoiding the loss of the heat of the substance to be measured in the process of transferring the heat to the temperature measuring end 220 via the second pipe 20, and ensuring the accuracy of the temperature measuring result.
Accordingly, in such an embodiment, referring to fig. 4 to 6, the inner diameter of the junction of the connection member 30 and the first pipe 10 may be set to be larger than the inner diameter of the junction of the connection member 30 and the second pipe 10, thereby enabling to better fixedly connect the first pipe 10 and the second pipe 20.
In some embodiments, the inner wall of the coupling 30 may be adhered to the walls of the first and second pipe elements 10 and 20, thereby fixedly coupling the first and second pipe elements 10 and 20.
In some embodiments, one end of the inner wall of the connection member 30 may be formed with a first sub-fitting portion 31, the closed end of the first pipe 10 is formed with a second sub-fitting portion 14, and the first sub-fitting portion 31 and the second sub-fitting portion 14 are fittingly connected, so that the one end of the connection member 30 is fixed to the one end of the first pipe 10 by the fittingly connection of the first sub-fitting portion 31 and the second sub-fitting portion 14. Correspondingly, the other end of the inner wall of the connecting member 30 may be formed with a third sub-fitting portion 32, one end of the pipe wall of the second pipe 20 may be formed with a fourth sub-fitting portion 21, and one end of the connecting member 30 and one end of the second pipe 20 are fixed by the fitting connection of the third sub-fitting portion 32 and the fourth sub-fitting portion 21.
It is understood that in some embodiments, the connection element 30 may be connected to the first pipe 10 differently from the connection element 30 connected to the second pipe 20, for example, one end of the connection element 30 may be adhered to the first pipe 10, and the other end may be connected to the second pipe 20 through the third sub-fitting part 32, which will not be described herein.
In some embodiments, the mating connection of the first sub-mating portion 32 and the second sub-mating portion 14 may be a threaded connection. In some embodiments, the mating connection between the first sub-mating portion 32 and the second sub-mating portion 14 may also be a combination of one or more other mating connection manners, such as a snap fit, an interference fit, etc., which can be selected by one skilled in the art according to actual needs. Similarly, the mating connection between the third sub-mating portion 32 and the fourth sub-mating portion 21 may be a threaded connection or other mating connection. In some embodiments, the mating connection manner of the third sub-mating portion 32 and the fourth sub-mating portion 21 may be different from the mating connection manner of the first sub-mating portion 32 and the second sub-mating portion 14.
In some embodiments, glue is applied to the fitting connection between the first sub-fitting portion 31 and the second sub-fitting portion 14, and/or the fitting connection between the third sub-fitting portion 32 and the fourth sub-fitting portion 21, in such embodiments, glue may be applied to the fitting connection first, and the fitting connection is completed before the glue is solidified, so that the glue will fill the gap between the fitting connections after the glue is solidified, and further ensure the stability of the connection.
In some embodiments, referring to fig. 3 to 6, the inner wall of the connecting member 30 is formed with a stopper 33, the first sub-fitting portion 31 is formed at one side of the stopper 33, and the third sub-fitting portion 32 is formed at the other side of the stopper 31. The position of the first pipe 10 and the second pipe 20 in the connecting member 30 can be limited by the limiting portion 33, for example, when the first sub-fitting portion 31 and the second sub-fitting portion 32 are threads, the first pipe 10 and the second pipe 20 cannot be screwed in after touching the limiting portion 33 in the screwing-in process, so that the assembly is more convenient.
In some embodiments, the position of the first pipe 10 and the second pipe 20 in the connection element 30 may be limited in other ways without providing the limiting element 33, for example, when the first sub-matching portion 31 and the third sub-matching portion 32 are threads, the thicknesses of the threads of the first sub-matching portion 31 and the third sub-matching portion 32 may be different, so that the first pipe 10 cannot be screwed into the connection element continuously after touching the third sub-matching portion 32 during screwing. For another example, when the first sub-fitting portion 31 and the third sub-fitting portion 32 are snap-fit structures, they have a limiting function.
In some embodiments, referring to fig. 1-2 and 3-5, the position-limiting portion 33 may be a ring-shaped protrusion, and in such embodiments, the position-limiting portion 33 will be located between the first pipe 10 and the second pipe 20 after the first pipe 10 and the second pipe 20 are fixedly connected to the connection member 30. Preferably, the height of the annular protrusion is such that the inner diameter of the connecting member 30 is the same as the inner diameters of the first and second pipe members 10 and 20, thereby enabling the temperature measuring device 200 to be more smoothly placed in the protection structure 100.
In some embodiments, referring to fig. 3 and 6, the stopper 33 may be a slope-shaped protrusion. In such an embodiment, referring to fig. 3, the first pipe 10 can be held against one end of the slant-shaped protrusion, and the second pipe 20 can move further across the other end of the slant-shaped protrusion until being held against one end of the first pipe 10, so that the slant-shaped protrusion can limit the position of the first pipe 10 and the second pipe 20, and simultaneously, the first pipe 10 and the second pipe 20 can be directly butted, thereby reducing the risk of generating a gap at the butted position of the first pipe 10 and the second pipe 20. However, in such an embodiment, referring to fig. 3, the bevel-like protrusion may cause a void in the connector 30, and optionally the void may be filled with glue or other substances to ensure the stability of the connection.
In some embodiments, when the first pipe 10 and the second pipe 20 are connected to the connection member 30, the first pipe 10 may enter the connection member 30 from one side of the stopper 33, and the second pipe 20 enters the connection member 30 from the other side of the connection member 30, so that the installation is more convenient, and when one of the first pipe 10 and the second pipe 20 needs to be replaced, the first pipe 10 and the second pipe 20 may be separately disassembled and then replaced without disassembling the first pipe 10 and the second pipe 20 completely.
In some embodiments, the outer diameter of the first pipe element 10 is larger than the outer diameter of the second pipe element 20, and correspondingly, the inner diameter of one end of the connecting element is larger than the inner diameter of the other end, at this time, it is also possible to choose to make both the first pipe element 10 and the second pipe element 20 enter from the end with the larger inner diameter, the second pipe element 20 can reach the other end through the limiting portion 33 after entering the connecting element 30, and the first pipe element 10 will be supported by the limiting portion 33 after entering the connecting element 30.
In some embodiments, referring to fig. 1 and 4, the outer wall of the connecting member 30 may be provided in a cylindrical shape, thereby facilitating manufacturing.
In some embodiments, referring to fig. 2 to 3 and fig. 5 to 6, the outer wall of the connection member 30 may be formed in a funnel shape, so that material cost of the connection member 30 is saved, and a user can distinguish both ends of the connection member 30 more conveniently, thereby preventing connection errors.
It is understood that a person skilled in the art can freely combine the various embodiments of the inner wall of the connecting member 30 and the various embodiments of the outer wall of the connecting member 30 shown in the above embodiments, and is not limited to the above embodiments and the embodiments shown in fig. 3 to 6.
In some embodiments, referring to fig. 7, one end of the second pipe 20 may be formed with a swelling portion 22, an outer diameter of the swelling portion 22 may be substantially the same as an outer diameter of the first pipe 10, and the coupling 30 may couple the swelling portion 22 to one end of the first pipe 10, so that the coupling of the first pipe 10 and the second pipe 20 may be more tight.
In some embodiments, still referring to fig. 7, one end of the connecting element 30 may be provided with a stopper 34, and when installed, the end of the second pipe 20 away from the swelling portion 22 may pass through the stopper 34, while the swelling portion 22 cannot pass through the stopper 34, so that the stopper 34 can limit the swelling portion 22 within the connecting element 30 to facilitate installation of the protective structure. In such an embodiment, reference may be made to the above description for the connection between the first pipe element 10 and the second pipe element 20 and the connection element 30, and the description thereof is omitted.
According to an embodiment of the present invention, there is further provided a temperature measuring assembly, including the temperature measuring device 200 and any one of the protection structures described above, wherein the temperature measuring device 200 is disposed in the protection structure, and the specific implementation manner refers to the foregoing contents, and is not described herein again.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (16)
1. A protection structure of a temperature measuring device, comprising:
the first pipe fitting (10), the lumen of the first pipe fitting (10) is used for accommodating the body (210) of the temperature measuring device (200), and a coolant is arranged in the pipe wall of the first pipe fitting (10) to cool the body (210);
the lumen of the second pipe (20) is used for accommodating the temperature measuring end (220) of the temperature measuring device (200); and the number of the first and second groups,
the connecting piece (30) is arranged on the outer side of the pipe wall of the first pipe fitting (10) and the second pipe fitting (20) so as to enable one end of the first pipe fitting (10) to be in butt joint with one end of the second pipe fitting (20).
2. Protective structure according to claim 1, wherein the pipe wall of the first pipe (10) comprises a first shell (11) and a second shell (12),
the first housing (11) forms a lumen of the first tube (10),
the second housing (12) is provided outside the first housing (11),
a cooling cavity (13) is formed between the first shell (11) and the second shell (12), and the cooling cavity (13) is used for containing the coolant.
3. The protective structure according to claim 1, wherein the outer diameter of the first tube (10) is greater than the outer diameter of the second tube (20);
the inner diameter of the joint of the connecting piece (30) and the first pipe fitting (10) is larger than that of the joint of the connecting piece (30) and the second pipe fitting (10).
4. A protective structure according to any one of claims 1-3, wherein the inner wall of the connecting piece (30) adheres to the pipe walls of the first and second pipe elements (10, 20).
5. The protective structure according to any one of claims 1 to 3, wherein one end of the inner wall of the connecting piece (30) is formed with a first sub-fitting part (31), one end of the pipe wall of the first pipe fitting (10) is formed with a second sub-fitting part (14), and the first sub-fitting part (31) is in fit connection with the second sub-fitting part (14);
the other end of connecting piece (30) inner wall is formed with sub-cooperation portion of third (32), the one end of second pipe fitting (20) pipe wall is formed with sub-cooperation portion of fourth (21), sub-cooperation portion of third (32) with sub-cooperation portion of fourth (21) cooperation is connected.
6. The protective structure according to claim 5, wherein the inner wall of the connecting member (30) is formed with a stopper portion (33), the first sub-fitting portion (31) is formed at one side of the stopper portion (33), and the third sub-fitting portion (32) is formed at the other side of the stopper portion (31).
7. The protective structure according to claim 6, wherein the stopper portion (33) is an annular projection.
8. The protective structure according to claim 6, wherein the stopper portion (33) is a slope-like projection.
9. The protective structure according to any one of claims 6 to 8, wherein when the first pipe member (10) and the second pipe member (20) are connected to the connecting member (30), the first pipe member (10) enters the connecting member (30) from one side of the position restricting portion (33), and the second pipe member (20) enters the connecting member (30) from the other side of the position restricting portion (33).
10. Protection structure according to any one of claims 5-9, wherein the mating connection of the first sub-mating portion (31) with the second sub-mating portion (14) is a threaded connection;
the third sub-matching part (32) is in threaded connection with the fourth sub-matching part (21).
11. Protective structure according to any one of claims 5-10, wherein the mating connection of the first sub-mating portion (31) and the second sub-mating portion (14) is provided with glue;
glue is laid at the matching connection position of the third sub-matching part (32) and the fourth sub-matching part (21).
12. Protective structure according to any one of claims 3-11, wherein the outer wall of the connecting piece (30) is cylindrical.
13. Protective structure according to any one of claims 3-11, wherein the outer wall of the connecting piece (30) is funnel-shaped.
14. The protective structure according to claim 1 or 2, wherein one end of the second pipe member (20) is formed with a bulging portion (22), an outer diameter of the bulging portion (22) is substantially the same as an outer diameter of the first pipe member (10), and the connector (30) abuts the bulging portion (22) with one end of the first pipe member (10).
15. The protective structure according to claim 14, wherein one end of the connecting member (30) is formed with a stopper (34) to restrain the bulging portion (22) within the connecting member (30).
16. A thermometric assembly comprising:
a temperature measuring device (200); and
the protective structure according to any one of claims 1 to 15, wherein said thermometric device (200) is arranged inside said protective structure.
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| CN113267261B (en) | 2022-06-28 |
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