CN113447156A - Armored thermal resistor temperature sensor - Google Patents
Armored thermal resistor temperature sensor Download PDFInfo
- Publication number
- CN113447156A CN113447156A CN202010226257.4A CN202010226257A CN113447156A CN 113447156 A CN113447156 A CN 113447156A CN 202010226257 A CN202010226257 A CN 202010226257A CN 113447156 A CN113447156 A CN 113447156A
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- China
- Prior art keywords
- protective tube
- protective
- temperature sensor
- thermal resistor
- thermal resistance
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- 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
- G01K7/16—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements
- G01K7/18—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements the element being a linear resistance, e.g. platinum resistance thermometer
- G01K7/183—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements the element being a linear resistance, e.g. platinum resistance thermometer characterised by the use of the resistive element
-
- 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
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
The invention discloses an armored thermal resistor temperature sensor which comprises a protective sleeve, wherein the protective sleeve comprises a first protective tube and a second protective tube, the second protective tube is packaged in the first protective tube, a plurality of damping springs are arranged between the inner side of the first protective tube and the outer side of the second protective tube, a ceramic packaging type element is arranged in the inner cavity of the second protective tube, a thermal resistor is arranged in the ceramic packaging type element, magnesium oxide powder is filled in the second protective tube and outside the ceramic packaging type element, an installation disc is arranged outside the first protective tube, and an extended thermal resistor lead is connected to the right side of the installation disc and the outlet end of the protective sleeve. The damping device is reasonable in structural design, the damping springs arranged in the first protection pipe and the second protection pipe are utilized, the influence of vibration generated by the external environment on magnesium oxide powder filled in the second protection pipe can be effectively relieved, and the practicability is high.
Description
Technical Field
The invention relates to the technical field of temperature measurement, in particular to an armored thermal resistor temperature sensor.
Background
The sheathed thermal resistor is a temperature sensor which measures temperature by utilizing the characteristic that when the temperature of a substance changes, the resistance of the substance also changes along with the change. When the resistance value changes, the working instrument displays the temperature value corresponding to the resistance value. Compared with an assembly type platinum resistor, the resistor is smaller in diameter and easy to bend, and is suitable for being installed in special occasions such as narrow pipelines and the requirements of quick response and miniaturization. The device can automatically detect the surfaces of gas, liquid medium and solid within the temperature range of-200 to 600 ℃, can be directly connected with a secondary instrument for use by a copper wire, and can provide accurate input values for a display instrument, a recorder, a regulator, a scanner, a data recorder and a computer due to good electrical output characteristics.
Current armor thermal resistance temperature sensor is measuring industrial environment temperature usually, can receive external environment's influence like the external mechanical vibration that produces, can lead to the insulating magnesium oxide powder of protection tube intussuseption to produce the uneven distribution phenomenon, and then begin to extrude the thermal resistance, lead to the life of thermal resistance to reduce, in addition, external environment temperature's change can lead to the stress of thermal resistance too big, and then the security that uses the thermal resistance drops.
Disclosure of Invention
The present invention is directed to a sheathed thermal resistance temperature sensor that solves the problems set forth above in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides an armor thermal resistance temperature sensor, includes protective case, protective case includes first protective tube and second protection tube, the encapsulation is provided with the second protection tube in the first protective tube, first protective tube inboard with be provided with a plurality of damping spring between the second protection tube outside, second protection tube inner chamber is provided with ceramic encapsulation type component, the inside thermal resistance that is provided with of ceramic encapsulation type component, just be in the second protection tube ceramic encapsulation type component outside is filled and is provided with the magnesium oxide powder, first protective tube outside is provided with the mounting disc, the right side of mounting disc just is in the thermal resistance lead wire that is provided with the extension is connected to protective case's exit end, the thermal resistance with thermal resistance lead wire electric connection, thermal resistance lead wire outside cup joints and is provided with the bellows.
Preferably, the thermal resistor is a platinum wire, and the thermal resistor is designed to be a spiral structure.
Preferably, the first protection pipe is made of high-temperature-resistant and pressure-resistant ceramic by using high-temperature-resistant and pressure-resistant materials.
Preferably, the second protection pipe is made of stainless steel.
Preferably, the mounting disc is welded to the protective sleeve, and bolt holes are formed in the mounting disc.
Preferably, damping spring equidistance distribute set up in first protective tube with the clearance of second protective tube, just damping spring's the fixed welding in upper end is in the inside wall of first protective tube with damping spring's the fixed welding in the outside wall of second protective tube in lower extreme.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the thermal resistor is designed into a spiral structure inside the second protection pipe, so that the stress generated by the thermal resistor due to the change of the environmental temperature can be effectively reduced, the service life of the thermal resistor is prolonged, the safety is improved, and certain economic benefit and practical value are achieved;
2. the damping springs which are arranged in the first protection tube and the second protection tube are designed at the same time, so that the influence of mechanical vibration generated by the external environment on magnesium oxide powder filled in the second protection tube can be effectively relieved, the thermal resistor is protected, the service life of the thermal resistor is prolonged, the use safety of the thermal resistor is improved, the overall structure is simple, the design is reasonable, the practicability is high, and the damping springs have the advantages of good use effect and the like.
Drawings
FIG. 1 is a schematic diagram of the overall structure of an armored thermal resistance temperature sensor according to the present invention;
FIG. 2 is a schematic diagram of an appearance structure of a sheathed thermal resistance temperature sensor according to the present invention;
fig. 3 is a schematic sectional view of a protective sleeve of an armored thermal resistance temperature sensor according to the present invention.
In the figure: 1. protecting the sleeve; 2. a first protective tube; 3. a second protection tube; 4. a damping spring; 5. a ceramic package type element; 6. a thermal resistor; 7. magnesium oxide powder; 8. mounting a disc; 9. a thermal resistance lead; 10. a bellows; 11. bolt holes.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides an armoured thermal resistance temperature sensor, including protective case 1, protective case 1 includes first protective case 2 and second protection tube 3, encapsulation installation second protection tube 3 in the first protective case 2, fixed welding installation a plurality of damping spring 4 between the 2 inboard and the 3 outsides of second protection tube of first protective case, 3 inner chamber installation pottery package type components of second protection tube 5, 5 internally mounted thermal resistance 6 of pottery package type components, it has magnesium oxide powder 7 just to fill in second protection tube 3 outside pottery package type components 5, 2 outsides of first protective case are through welding fixed mounting flange 8, the thermal resistance lead wire 9 of installation extension is just connected on the exit end of protective case 1 on the right side of mounting flange 8, thermal resistance 6 and thermal resistance lead wire 9 electric connection, installation bellows 10 is cup jointed to thermal resistance lead wire 9 outside.
The thermal resistor 6 is a platinum wire, and the thermal resistor 6 is designed into a spiral structure, so that the excessive stress generated by the thermal resistor 6 due to the change of the environmental temperature is effectively reduced, and the service life of the thermal resistor 6 is prolonged; the first protection sleeve 2 is made of high-temperature-resistant and compression-resistant materials and compression-resistant ceramics, so that the first protection sleeve 1 is suitable for various severe environments, and the service life is prolonged; the second protection tube 3 is made of stainless steel, which is beneficial to prolonging the service life of the second protection tube 3; the mounting disc 8 is welded on the protective sleeve 1, and a bolt hole 11 is formed in the mounting disc 8, so that the armored thermal resistor 6 temperature sensor can be fixedly mounted on equipment; damping spring 4 equidistance distributes in the clearance of first protective tube 2 and second protective tube 3, and damping spring 4's upper end fixed weld is in the lateral wall of second protective tube 3 at the inside wall of first protective tube 2 and damping spring 4's lower extreme fixed weld, can slow down the influence of the external mechanical vibration that produces to the inside magnesium oxide powder 7 of filling of second protective tube 3 effectively like this.
The working principle is as follows: when the temperature measuring device is used, firstly, the armored thermal resistor 6 is fixedly installed on equipment through the bolt hole 11 on the installation plate 8, and then the temperature measurement is started. The protection sleeve 1 adopted by the invention is divided into a first protection sleeve 2 and a second protection sleeve 3, the first protection sleeve 2 is made of pressure-resistant ceramics, the protection sleeve can be suitable for various severe environments in industrial environment, the service life of a thermal resistor 6 is effectively prolonged, the second protection sleeve 3 is made of stainless steel, and meanwhile, magnesium oxide powder 7 filled inside the protection sleeve can play a certain insulation role, but vibration generated by the external environment can extrude the magnesium oxide powder 7 in the second protection sleeve 3 on the thermal resistor 6 to cause the service life of the thermal resistor 6 to be reduced, and the vibration influence generated by the external environment can be effectively relieved through a damping spring 4 structure designed in the protection sleeve 1, so that the phenomenon that the magnesium oxide powder 7 inside the second protection sleeve 3 is not distributed unevenly is ensured, and the safety of the thermal resistor 6 is ensured to a certain extent. In addition, thermal resistance 6 designs into helical structure and can effectively reduce thermal resistance 6 because the stress variation that ambient temperature changes and produce, and then has prolonged thermal resistance 6's life, and the device overall design is reasonable, has advantages such as easy operation, convenient to use, result of use are good.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides an armoured thermal resistance temperature sensor, includes protective case (1), its characterized in that: the protective sleeve (1) comprises a first protective tube (2) and a second protective tube (3), the second protective tube (3) is arranged in the first protective tube (2) in a sealing mode, a plurality of damping springs (4) are arranged between the inner side of the first protective tube (2) and the outer side of the second protective tube (3), a ceramic packaging type element (5) is arranged in the inner cavity of the second protective tube (3), a thermal resistor (6) is arranged inside the ceramic packaging type element (5), magnesium oxide powder (7) is filled in the second protective tube (3) and outside the ceramic packaging type element (5), an installation disc (8) is arranged outside the first protective tube (2), the right side of the installation disc (8) is connected with the outlet end of the protective sleeve (1) and provided with an extended thermal resistor (6) lead, and the thermal resistor (6) is electrically connected with the thermal resistor lead (9), the corrugated pipe (10) is sleeved outside the thermal resistance lead (9).
2. The armored thermal resistance temperature sensor of claim 1, wherein: the thermal resistor (6) is a platinum wire, and the thermal resistor (6) is designed into a spiral structure.
3. The armored thermal resistance temperature sensor of claim 1, wherein: the first protection pipe (2) is made of high-temperature-resistant and pressure-resistant materials and pressure-resistant ceramics.
4. The armored thermal resistance temperature sensor of claim 1, wherein: the second protective tube (3) is made of stainless steel.
5. The armored thermal resistance temperature sensor of claim 1, wherein: the mounting disc (8) is welded on the protective sleeve (1), and a bolt hole (11) is formed in the mounting disc (8).
6. The armored thermal resistance temperature sensor of claim 1, wherein: damping spring (4) equidistance distribute set up in first protective tube (2) with the clearance of second protective tube (3), just the fixed welding in the inside wall of first protective tube (2) in the upper end of damping spring (4) with the fixed welding in the lateral wall of second protective tube (3) in the lower extreme of damping spring (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010226257.4A CN113447156A (en) | 2020-03-27 | 2020-03-27 | Armored thermal resistor temperature sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010226257.4A CN113447156A (en) | 2020-03-27 | 2020-03-27 | Armored thermal resistor temperature sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113447156A true CN113447156A (en) | 2021-09-28 |
Family
ID=77807643
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010226257.4A Pending CN113447156A (en) | 2020-03-27 | 2020-03-27 | Armored thermal resistor temperature sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113447156A (en) |
-
2020
- 2020-03-27 CN CN202010226257.4A patent/CN113447156A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20210928 |
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| WD01 | Invention patent application deemed withdrawn after publication |