CN215811312U - Super corrosion-resistant thermocouple for hearth of garbage power plant - Google Patents
Super corrosion-resistant thermocouple for hearth of garbage power plant Download PDFInfo
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- CN215811312U CN215811312U CN202122185637.0U CN202122185637U CN215811312U CN 215811312 U CN215811312 U CN 215811312U CN 202122185637 U CN202122185637 U CN 202122185637U CN 215811312 U CN215811312 U CN 215811312U
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Abstract
The utility model relates to the technical field of thermocouples, in particular to a super-corrosion-resistant thermocouple of a hearth of a garbage power plant.A protective alloy sleeve consists of an inner sleeve and an outer sleeve which is nested outside the inner sleeve, and a cylindrical isolation space is set at an interval between the outer wall of the inner sleeve and the inner wall of the outer sleeve; a plurality of isolating strips are circumferentially arranged in the inner ring sleeve of the isolating space, each isolating strip is arranged along the length direction of the inner pipe sleeve, and two opposite sides of each isolating strip are fixedly connected with the outer side wall of the inner pipe sleeve and the inner side wall of the outer pipe sleeve respectively; any two adjacent isolating strips form independent spaces between the inner pipe sleeve and the outer pipe sleeve, and first heat conduction materials are filled in the independent spaces. The utility model provides a super-corrosion-resistant thermocouple of a hearth of a garbage power plant, which protects a detection core through an alloy protection sleeve, so that the corrosion resistance of the thermocouple is improved.
Description
Technical Field
The utility model relates to the technical field of thermocouples, in particular to a super-corrosion-resistant thermocouple for a hearth of a garbage power plant.
Background
In the process of waste incineration, the furnace temperature is the most important. The higher furnace temperature is beneficial to the rapid and sufficient drying and volatilization of the garbage in the furnace, ensures the sufficiency of the pyrolysis process and promotes the burnout of the residual carbon, thereby improving the burnout degree of the garbage and meeting the requirement of the thermal ignition reduction of the garbage incineration treatment. Therefore, the adoption of the thermocouple for continuous temperature measurement is an effective means for accurately mastering the temperature change of the garbage incinerator. However, the working condition of the garbage incinerator is complex, so that material differentiation selection of different points is difficult to realize in temperature measurement protection tube selection, and a special thermocouple for a garbage power plant specially aiming at a complex environment is not provided, so that the service life is short, and the production cost and the labor cost are increased.
SUMMERY OF THE UTILITY MODEL
The utility model provides a super-corrosion-resistant thermocouple of a hearth of a garbage power plant, which protects a detection core through an alloy protection sleeve, so that the corrosion resistance of the thermocouple is improved.
In order to achieve the purpose, the utility model provides the following technical scheme: a super corrosion-resistant thermocouple of a hearth of a garbage power plant comprises: the junction box is a cavity structure formed by an upper cover and a base, and a through detection hole is formed in the outer side wall of the base; the alloy protective sleeve is of a straight pipe structure, and one arbitrary end of the alloy protective sleeve is communicated with the detection hole; the detection core extends from the inside of the junction box to the inside of the alloy protective sleeve through the detection hole; the alloy protection sleeve comprises an inner sleeve and an outer sleeve which is embedded outside the inner sleeve, and a cylindrical isolation space is formed between the outer wall of the inner sleeve and the inner wall of the outer sleeve at intervals; a plurality of isolating strips are arranged in the isolating space in the circumferential direction of the inner pipe sleeve, each isolating strip is arranged along the length direction of the inner pipe sleeve, and two opposite sides of each isolating strip are fixedly connected with the outer side wall of the inner pipe sleeve and the inner side wall of the outer pipe sleeve respectively; any two adjacent isolating bars form independent spaces between the inner pipe sleeve and the outer pipe sleeve, and first heat conduction materials are filled in the independent spaces.
Preferably, the inner side wall of the outer pipe sleeve is provided with a first channel which penetrates through and protrudes inwards corresponding to each independent space, and a first high-density filter screen is arranged at one end of each first channel corresponding to each independent space.
Preferably, the outer side wall of the inner pipe sleeve is provided with a second channel which penetrates through and protrudes outwards corresponding to each independent space, and a second high-density filter screen is arranged at one end of each second channel corresponding to the independent space.
Preferably, the inner sleeve wall of the inner sleeve is circumferentially provided with a plurality of supporting bars, and the free ends of the supporting bars are in contact fit with the outer side wall of the detection core.
Preferably, a second heat conduction material is filled between the inner side wall of the inner pipe sleeve and the outer side wall of the detection core.
The utility model has the beneficial effects that: the parts forming the alloy protective sleeve are formed by mixing and firing 45-50% of magnesium oxide MgO, 20-25% of aluminum oxide Al2O3, 15-20% of molybdenum Mo, 2-5% of titanium oxide TiO2, 2-5% of chromium oxide Cr2O3, 5-8% of zirconium dioxide ZrO2 and 5-8% of chromium Cr in percentage by mass; the raw materials are uniformly mixed, then silicon Si accounting for 5-10% of the total mass of the mixed raw materials is added and uniformly mixed, the mixture is placed into a mold for compression molding, then the mold is placed in the mold for 8-10 hours and then is demoulded, the demoulded product is placed for 36-40 hours, and finally the demoulded product is placed into a kiln and is baked for 10-12 hours at 1600-1750 ℃, so that the corrosion-resistant and high-temperature-resistant silicon alloy material is prepared. And outer pipe casing and inner pipe casing are connected through the base cooperation of screw thread form with the terminal box respectively, consequently can independently change, in the use, the thermocouple inserts the inside detection temperature of furnace, wherein outer pipe casing and inner pipe casing protect the detection core, can be independent change outer pipe casing after outer pipe casing is corroded the damage, thereby the life of extension detection core, the axiality of outer pipe casing and inner pipe casing is then guaranteed to the parting strip, avoid inner pipe casing and outer pipe casing contact, consequently, can effectually protect the detection core, accurate testing result is still guaranteed to first heat conduction material simultaneously, and the response speed of thermocouple. A high-density filter screen carries out restraint protection to the first heat conduction material, not only enables independent space and the inside air of guaranteeing of furnace unblocked, can also avoid first heat conduction material to leak to the corresponding speed of the thermocouple of further improvement. And the first heat conduction material also carries out isolation protection on the inner pipe sleeve, so that the corrosion phenomenon caused by direct contact of the inner pipe sleeve and high-temperature gas in the hearth is avoided. When first heat conduction material adopted the grain structure to realize, the high-density filter screen of second retrained the second heat conduction material to under the filtration of second heat conduction material, make the gas after passing in the furnace filtered through the second passageway heat the detection core, thereby it is more sensitive to detect the change of numerical value. The support bar guarantees that detection core and inner tube cover are coaxial, and the second heat conduction material constitutes for the cylindric of alloy, and its effect produces the adhesion for inner tube cover after avoiding being corroded and detection, and leads to detecting the core damage.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is an overall schematic view of the present invention;
FIG. 2 is a schematic cross-sectional view of an alloy protective sleeve according to the present invention;
FIG. 3 is a schematic view of a portion of a second heat conducting material inside the protective alloy sheath of the present invention;
FIG. 4 is a schematic view of a subsection of a first thermally conductive material inside an alloy protective sleeve of the present invention.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is to be understood 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, 2, 3 and 4, a super corrosion-resistant thermocouple for a hearth of a garbage power plant includes: the terminal box 1 is a cavity structure formed by an upper cover and a base, and a through detection hole is formed in the outer side wall of the base; the alloy protective sleeve 2 is of a straight pipe structure, and any one end of the alloy protective sleeve 2 is communicated with the detection hole; the detection core 3 extends from the inside of the junction box 1 to the inside of the alloy protective sleeve 2 through the detection hole; the alloy protection sleeve 2 is composed of an inner sleeve 4 and an outer sleeve 5 which is embedded outside the inner sleeve 4, and a cylindrical isolation space is formed between the outer wall of the inner sleeve 4 and the inner wall of the outer sleeve 5 at intervals; a plurality of isolating strips 6 are arranged in the isolating space in the circumferential direction of the inner pipe sleeve 4, each isolating strip 6 is arranged along the length direction of the inner pipe sleeve 4, and two opposite sides of each isolating strip 6 are fixedly connected with the outer side wall of the inner pipe sleeve 4 and the inner side wall of the outer pipe sleeve 5 respectively; any two adjacent isolating bars 6 form independent spaces 7 between the inner pipe sleeve 4 and the outer pipe sleeve 5, and a first heat conduction material 9 is filled in each independent space 7.
Wherein, the parts forming the alloy protective sleeve 2 are formed by mixing and firing 45-50% of magnesium oxide MgO, 20-25% of aluminum oxide Al2O3, 15-20% of molybdenum Mo, 2-5% of titanium oxide TiO2, 2-5% of chromium oxide Cr2O3, 5-8% of zirconium dioxide ZrO2 and 5-8% of chromium Cr by mass percentage; the raw materials are uniformly mixed, then silicon Si accounting for 5-10% of the total mass of the mixed raw materials is added and uniformly mixed, the mixture is placed into a mold for compression molding, then the mold is placed in the mold for 8-10 hours and then is demoulded, the demoulded product is placed for 36-40 hours, and finally the demoulded product is placed into a kiln and is baked for 10-12 hours at 1600-1750 ℃, so that the corrosion-resistant and high-temperature-resistant silicon alloy material is prepared.
And in this setting, outer pipe box 5 and inner pipe box 4 are connected through the base cooperation of screw thread form with terminal box 1 respectively, consequently can independently change, in the use, the thermocouple inserts the inside detection temperature of furnace, wherein outer pipe box 5 and inner pipe box 4 protect detecting core 3, can be independent change outer pipe box 5 after outer pipe box 5 is corroded the damage, thereby the life of extension detecting core 3, parting strip 6 then guarantees outer pipe box 5 and inner pipe box 4's axiality, avoid inner pipe box 4 and outer pipe box 5 contact, consequently can effectually protect detecting core 3, accurate testing result is still guaranteed to first heat conduction material 9 simultaneously, and the response speed of thermocouple.
The inner side wall of the outer pipe sleeve is provided with first passages 8 which penetrate through and protrude towards the inside corresponding to the independent spaces 7, and one ends, corresponding to the independent spaces 7, of the first passages 8 are provided with first high-density filter screens.
Through this setting, first high-density filter screen retrains protection to first heat conduction material 9, not only enables independent space 7 and the inside air of guaranteeing of furnace unblocked, can also avoid first heat conduction material 9 to leak to the corresponding speed of the thermocouple of further improvement. And the first heat conduction material 9 also carries out isolation protection on the inner pipe sleeve 4, so that the corrosion phenomenon caused by direct contact of the inner pipe sleeve 4 and high-temperature gas in the hearth is avoided.
The outer side wall of the inner pipe sleeve is provided with second channels 11 which penetrate through and protrude outwards corresponding to the independent spaces 7, and second high-density filter screens are arranged at one ends, corresponding to the independent spaces 7, of the second channels 11.
In this setting, when first heat conduction material 9 adopts the grain structure to realize, the high-density filter screen of second retrains second heat conduction material 12 to under the filtration of second heat conduction material 12, make the gas after crossing in the furnace filtered through second passageway 11 to detect core 3 and heat, thereby it is more sensitive to detect the change of numerical value.
A plurality of supporting strips 14 are circumferentially arranged on the inner side wall of the inner pipe sleeve 4, and the free ends of the supporting strips 14 are in contact fit with the outer side wall of the detection core 3. And a second heat conduction material 12 is filled between the inner side wall of the inner pipe sleeve 4 and the outer side wall of the detection core 3.
In this setting, support bar 14 guarantees that detection core 3 is coaxial with inner tube cover 4, and second heat conduction material 12 constitutes for the cylindric of alloy, and its effect is for avoiding inner tube cover 4 after being corroded and detecting and produce the adhesion, and lead to detecting the damage of core 3.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (5)
1. A super corrosion-resistant thermocouple of a hearth of a garbage power plant comprises: the junction box is a cavity structure formed by an upper cover and a base, and a through detection hole is formed in the outer side wall of the base; the alloy protective sleeve is of a straight pipe structure, and one arbitrary end of the alloy protective sleeve is communicated with the detection hole; the detection core extends from the inside of the junction box to the inside of the alloy protective sleeve through the detection hole; the method is characterized in that:
the alloy protection sleeve is composed of an inner sleeve and an outer sleeve which is embedded outside the inner sleeve, and a cylindrical isolation space is formed between the outer wall of the inner sleeve and the inner wall of the outer sleeve at intervals;
a plurality of isolating strips are arranged in the isolating space in the circumferential direction of the inner pipe sleeve, each isolating strip is arranged along the length direction of the inner pipe sleeve, and two opposite sides of each isolating strip are fixedly connected with the outer side wall of the inner pipe sleeve and the inner side wall of the outer pipe sleeve respectively;
any two adjacent isolating bars form independent spaces between the inner pipe sleeve and the outer pipe sleeve, and first heat conduction materials are filled in the independent spaces.
2. The super corrosion-resistant thermocouple of the hearth of the garbage power plant according to claim 1, characterized in that: the inner side wall of the outer pipe sleeve is provided with first passages which penetrate through and protrude towards the inside corresponding to the independent spaces respectively, and one ends, corresponding to the independent spaces, of the first passages are provided with first high-density filter screens.
3. The super corrosion-resistant thermocouple of the hearth of the garbage power plant according to claim 2, characterized in that: and the outer side wall of the inner pipe sleeve is provided with a second channel which penetrates through and protrudes to the outside corresponding to each independent space, and one end of each second channel corresponding to the independent space is provided with a second high-density filter screen.
4. The super corrosion-resistant thermocouple of the hearth of the garbage power plant according to claim 3, characterized in that: the inner sleeve wall of inner tube cover ring circumference is equipped with a plurality of support bars, each the free end of support bar with detect the contact cooperation of core lateral wall.
5. The super corrosion-resistant thermocouple of the hearth of the garbage power plant according to claim 4, characterized in that: and a second heat conduction material is filled between the inner side wall of the inner pipe sleeve and the outer side wall of the detection core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122185637.0U CN215811312U (en) | 2021-09-10 | 2021-09-10 | Super corrosion-resistant thermocouple for hearth of garbage power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202122185637.0U CN215811312U (en) | 2021-09-10 | 2021-09-10 | Super corrosion-resistant thermocouple for hearth of garbage power plant |
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| CN215811312U true CN215811312U (en) | 2022-02-11 |
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| CN202122185637.0U Active CN215811312U (en) | 2021-09-10 | 2021-09-10 | Super corrosion-resistant thermocouple for hearth of garbage power plant |
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- 2021-09-10 CN CN202122185637.0U patent/CN215811312U/en active Active
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