CN212807373U - Corrosion-resistant thermal resistor - Google Patents
Corrosion-resistant thermal resistor Download PDFInfo
- Publication number
- CN212807373U CN212807373U CN202021520847.XU CN202021520847U CN212807373U CN 212807373 U CN212807373 U CN 212807373U CN 202021520847 U CN202021520847 U CN 202021520847U CN 212807373 U CN212807373 U CN 212807373U
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- streamlined flat
- terminal box
- flat pipe
- corrosion
- stainless steel
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Abstract
The utility model discloses a corrosion-resistant thermal resistance, including temperature-sensing element, terminal box and lead-out wire sealing sleeve, the temperature-sensing element includes three layer construction, is insulation support, resistance silk layer and stainless steel protection tube from inside to outside respectively, keeping away from of stainless steel protection tube a pot head of terminal box is equipped with streamlined flat pipe, streamlined flat pipe is close to the inside screw hole that is equipped with of one end of terminal box, it is equipped with the spliced pole to lie in on the stainless steel protection tube between terminal box and the streamlined flat pipe, be equipped with on the spliced pole with screw hole complex external screw thread, the material of streamlined flat pipe is pottery. The utility model has the advantages of corrosion resistance is strong, and thermal resistance life is more permanent, has avoided the fluid through thermal resistance to produce the kamen swirl, and streamlined flat ceramic tube is heated more evenly, and detection efficiency is high.
Description
Technical Field
The utility model relates to a check out test set field especially relates to a corrosion-resistant thermal resistance.
Background
The thermal resistor is used as the most commonly used temperature detector in the medium-low temperature region, and measures temperature and parameters related to the temperature by means of the characteristic that the resistance value of a conductor or a semiconductor changes along with the temperature change, so that the measurement precision is high; however, in the actual use process, the liquid, gas, steam and solid surfaces of the object to be measured are often corrosive, or the measurement environment is corrosive, so that the service life of the thermal resistor is shortened, and the detection result is sometimes influenced; the common temperature sensing element is cylindrical, so that 'door clamping vortex' is easy to occur when the temperature of fluid is measured, and particularly, the size of a channel in which the measured fluid is located is close to that of the temperature sensing element, so that the reaction speed of temperature measurement of the temperature sensing element is slowed down or the ceramic is heated unevenly, and the temperature measurement result is inaccurate.
SUMMERY OF THE UTILITY MODEL
To the problem, the utility model provides a corrosion-resistant thermal resistance has corrosion resistance and is strong, produces "karman swirl" when avoiding detecting fluid temperature, and measuring result is accurate, the higher advantage of measurement of efficiency.
The technical scheme of the utility model is that:
the utility model provides a corrosion-resistant thermal resistor, includes temperature-sensing element, terminal box and lead-out wire sealing sleeve, the temperature-sensing element includes three layer construction, is insulation support, resistance wire layer and stainless steel protection tube from inside to outside respectively, keeping away from of stainless steel protection tube the pot head of terminal box is equipped with streamlined flat pipe, streamlined flat pipe be close to the inside screw hole that is equipped with of one end of terminal box, it is equipped with the spliced pole to lie in on the stainless steel protection tube between terminal box and the streamlined flat pipe, be equipped with on the spliced pole with screw hole complex external screw thread, streamlined flat pipe's material is pottery.
The working principle of the technical scheme is as follows:
the adoption has set up streamlined flat pipe, and the process has been avoided in streamlined design the fluid of thermal resistance produces the kamen swirl, makes streamlined flat pipe of pottery be heated more evenly, has improved detection speed, simultaneously, streamlined flat pipe is ceramic material, has strengthened the corrosion protection ability of thermal resistance for the life of thermal resistance is more permanent.
In a further technical scheme, the resistance wire layer is a platinum wire or a copper wire. The materials have large thermal resistance, obvious resistance change under the influence of temperature and high measurement precision.
In a further technical scheme, the width of one end, far away from the junction box, of the streamline flat pipe is gradually reduced towards the direction far away from the junction box. The bottom also adopts a streamline design, and the influence of the karman vortex phenomenon on temperature measurement is further reduced.
In a further technical scheme, the streamline flat tube is made of high-heat-conductivity ceramic. The ceramic with good heat conduction performance is selected, so that heat loss in the heat transmission process is reduced, the heat conduction speed is increased, and the temperature detection efficiency is improved.
The utility model has the advantages that:
1. the streamline ceramic flat tube is arranged, so that the corrosion resistance of the thermal resistor is enhanced, and the service life of the thermal resistor is longer.
2. The streamline design avoids the fluid passing through the thermal resistor from generating a karman vortex, so that the streamline ceramic flat tube is heated more uniformly, and the detection speed is improved. The bottom also adopts streamlined design, has further reduced the influence of karman vortex phenomenon to temperature measurement.
3. A ceramic with high thermal conductivity is used. Ceramic with good heat conduction performance is selected, so that the heat conduction speed is increased, the temperature detection efficiency is improved, and heat conduction and heat dissipation losses are reduced.
Drawings
FIG. 1 is a schematic structural diagram of a corrosion-resistant thermal resistor according to an embodiment of the present invention;
fig. 2 is a cross-sectional view of a temperature-sensitive element according to an embodiment of the present invention;
fig. 3 is a sectional view of a streamlined flat tube according to an embodiment of the present invention;
fig. 4 is a sectional view of the streamline flat tube according to the embodiment of the present invention.
Description of reference numerals:
10. a temperature sensing element; 11. an insulating sleeve; 12. a resistance wire layer; 13. a stainless steel protective tube; 14. connecting columns; 20. a junction box; 30. the outgoing line is sealed with a sleeve; 40. streamlined flat pipe.
Detailed Description
The embodiments of the present invention will be further explained with reference to the drawings.
Example (b):
as shown in fig. 1-4, a corrosion-resistant thermal resistor, includes temperature sensing element 10, terminal box 20 and lead-out wire sealing sleeve 30, and temperature sensing element 10 includes three layer construction, is insulation support 11, resistance wire layer 12 and stainless steel protection tube 13 respectively from inside to outside, and the pot head of keeping away from terminal box 20 of stainless steel protection tube 13 is equipped with streamlined flat pipe 40, and the inside screw hole that is equipped with of one end that is close to of streamlined flat pipe 40 terminal box 20, is equipped with spliced pole 14 on stainless steel protection tube 13 between terminal box and the streamlined flat pipe, is equipped with the external screw thread with screw hole complex on the spliced pole, and streamlined flat pipe 40 corresponds spliced pole 14 and is equipped with the screw hole and through it with spliced pole 14 threaded connection, and the material.
The working principle of the technical scheme is as follows:
the adoption has set up streamlined flat pipe, and the process has been avoided in streamlined design the fluid of thermal resistance produces the kamen swirl, makes streamlined flat pipe of pottery be heated more evenly, has improved detection speed, simultaneously, streamlined flat pipe is ceramic material, has strengthened the corrosion protection ability of thermal resistance for the life of thermal resistance is more permanent.
In another embodiment, the resistance wire layer 12 is a platinum wire or a copper wire. The materials have large thermal resistance, obvious resistance change under the influence of temperature and high measurement precision.
In another embodiment, the width of the streamlined flat tube 40 at the end away from the terminal box 20 is gradually reduced toward the terminal box 20. The bottom also adopts a streamline design, and the influence of the karman vortex phenomenon on temperature measurement is further reduced.
In another embodiment, the streamlined flat tube 40 is made of ceramic with high thermal conductivity. The ceramic with good heat conduction performance is selected, so that heat loss in the heat transmission process is reduced, the heat conduction speed is increased, and the temperature detection efficiency is improved.
The above-mentioned embodiments only express the specific embodiments of the present invention, and the description thereof is specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention.
Claims (4)
1. The utility model provides a corrosion-resistant thermal resistor, includes temperature-sensing element, terminal box and lead-out wire sealing sleeve, the temperature-sensing element includes three layer construction, is insulation support, resistance wire layer and stainless steel protection tube from inside to outside respectively, a serial communication port, keeping away from of stainless steel protection tube the pot head of terminal box is equipped with streamlined flat pipe, the close to of streamlined flat pipe the inside screw hole that is equipped with of one end of terminal box, it is equipped with the spliced pole to lie in between terminal box and the streamlined flat pipe on the stainless steel protection tube, be equipped with on the spliced pole with screw hole complex external screw thread, the material of streamlined flat pipe is pottery.
2. The corrosion resistant thermal resistor of claim 1 wherein the resistance wire layer is a platinum wire or a copper wire.
3. The corrosion-resistant thermal resistor according to claim 1, wherein the width of the end of the streamlined flat tube away from the junction box is gradually reduced in a direction away from the junction box.
4. The corrosion-resistant thermal resistor according to claim 1, wherein the streamlined flat tube is made of a ceramic with high thermal conductivity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021520847.XU CN212807373U (en) | 2020-07-28 | 2020-07-28 | Corrosion-resistant thermal resistor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021520847.XU CN212807373U (en) | 2020-07-28 | 2020-07-28 | Corrosion-resistant thermal resistor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212807373U true CN212807373U (en) | 2021-03-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021520847.XU Active CN212807373U (en) | 2020-07-28 | 2020-07-28 | Corrosion-resistant thermal resistor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212807373U (en) |
-
2020
- 2020-07-28 CN CN202021520847.XU patent/CN212807373U/en active Active
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