CN201163218Y - Anti-ventilation leakage thermocouple of blast furnace - Google Patents
Anti-ventilation leakage thermocouple of blast furnace Download PDFInfo
- Publication number
- CN201163218Y CN201163218Y CNU2008200737287U CN200820073728U CN201163218Y CN 201163218 Y CN201163218 Y CN 201163218Y CN U2008200737287 U CNU2008200737287 U CN U2008200737287U CN 200820073728 U CN200820073728 U CN 200820073728U CN 201163218 Y CN201163218 Y CN 201163218Y
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- core body
- blast furnace
- protection tube
- terminal box
- galvanic couple
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Abstract
The utility model belongs to an air leak resistant thermocouple for a blast furnace, consisting of a temperature measuring core body, a protective pipe and a junction box, wherein the temperature measuring core body and the protective pipe are fixedly arranged on the junction box, and the temperature measuring core body is coaxially arranged in the protective pipe, wherein leads of the temperature measuring core body are connected with external connection terminals by bolts in the junction box. The air leak resistant thermocouple has reasonable and scientific design, relatively high safety, convenient replacement of the temperature measuring core body, and high temperature resistance, pressure resistance, abrasion resistance and corrosion resistance, thereby being the air leak resistant thermocouple for the blast furnace capable of effectively avoiding heat air with high temperature and high pressure from blowing out of the blast furnace.
Description
Technical field
The utility model belongs to the temperature sensor field, especially a kind of blast furnace leakproof wind-heat galvanic couple.
Background technology
Thermopair is one of most widely used temperature sensor, and its principal feature is exactly that temperature-measuring range is wide, and performance is more stable, and simultaneously simple in structure, dynamic response is good, can teletransmission 4-20mA electric signal, be convenient to automatically and centralized control.Thermopair commonly used can be divided into standard couple and non-standard thermopair two big classes, standard couple has been meant national Specification its thermoelectrical potential and the relation of temperature and the error of permission, and have unified standard to divide the thermopair of kilsyth basalt; The nonstandardized technique thermopair all not as good as standardized thermocouple, does not generally have unified branch kilsyth basalt yet on the usable range and the order of magnitude, be mainly used in the measurement of some special occasions.Blast furnace thermocouple is to be made of thermometric core body, protection tube, terminal box, mainly is used in the stove of industries such as blast furnace, heat generator vault and rock gas, petrochemical complex, coal, and it measures temperature can be up to 1100～1400 ℃.Though blast furnace thermocouple in the market can be measured higher temperature; but its Product Safety is relatively poor; especially the high pressure draught in the blast furnace wash away and the corrosion of hot blast causes the damage of thermopair easily; this moment, blast-furnace hot-air can be along protection tube, the terminal box ejection of thermopair, and this can cause great threat to body of heater surrounding environment and personal safety.Through researching and analysing, the relatively poor main cause of above-mentioned blast furnace thermocouple security is: 1. blast furnace adopts aluminum with the terminal box of thermopair more, and anti-high pressure, high temperature capabilities are relatively poor; 2. the lead-in wire of the thermometric core body in the terminal box passes with display device by fairlead and is connected; 3. protection tube is high temperature resistant, the high pressure ability is relatively poor.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, provide a kind of security higher, measure core body change convenient, can be high temperature resistant, high pressure, high wearing and tearing, deep-etching, and can effectively prevent the blast furnace leakproof wind-heat galvanic couple of high temperature, high-pressure hot wind ejection.
The utility model solves its technical matters and is achieved through the following technical solutions:
A kind of blast furnace leakproof wind-heat galvanic couple; constitute by thermometric core body, protection tube, steel terminal box; thermometric core body and protection tube are packed on the steel terminal box; the thermometric core body is coaxial to be placed in the protection tube, it is characterized in that: the lead-in wire of thermometric core body is connected with the external cabling terminal by the internal-flange bolt of steel terminal box.
And described thermometric core body is the platinum rhodium armoured thermocouple core body of S calibration number or B calibration number.
And described thermometric core body and steel terminal box install by the cutting ferrule screw thread.
And, the coaxial adhesion pipe that is fixed with of outer wall of thermometric core body in the described steel terminal box, coaxial respectively plain washer and the taper washer of being fixed with in the outer wall upper and lower part of this adhesion pipe.
And described adhesion pipe and plain washer are 304SS adhesion pipe and 304SS plain washer, and taper washer is an asbestos washer.
And described protection tube is three layers and coaxial setting, is respectively corundum protection tube, recrystallized silicon carbide protection tube and reinforced pipe from inside to outside, and recrystallized silicon carbide protection tube and reinforced pipe are bonding by high-temperature plastic.
And described reinforced pipe is the GH3039 high temperature alloy pipes.
And, be equipped with one on the described steel terminal box and detect valve.
Advantage of the present utility model and beneficial effect are:
1. the lead-in wire of this blast furnace leakproof wind-heat galvanic couple thermometric core body is connected with its external cabling terminal by the terminal box internal-flange bolt, and terminal box is a steel, strengthened the overall security of thermopair, even the thermocouple measurement end also is difficult to enter the blast furnace external environment through long-term service failure high-pressure hot wind.
2. the protection tube of this blast furnace leakproof wind-heat galvanic couple is three layers; be respectively corundum protection tube, recrystallized silicon carbide protection tube and GH3039 high temperature alloy pipes from inside to outside; recrystallized silicon carbide protection tube and GH3039 high temperature alloy pipes are bonding by high-temperature plastic; effectively ensure the stability of measuring core body, improved high temperature resistant, the high pressure of thermopair integral body, high wearing and tearing, deep-etching performance.
3. this blast furnace leakproof wind-heat galvanic couple thermometric core body adopts the platinum rhodium armoured thermocouple core body of S or B calibration number, can reach 1400 ℃ by thermometric.
4. this blast furnace leakproof wind-heat galvanic couple thermometric core body and steel terminal box install by the cutting ferrule screw thread, and this cutting ferrule screw thread has disposable locking function; When measuring the core body infringement, can make things convenient in time and change, improved replacing efficient, and made better seal is arranged in the terminal box, realize safety in production.
5. on the terminal box of this blast furnace leakproof wind-heat galvanic couple the detection valve is installed, when thermopair turns round when undesired, whether operating personnel can have air-flow to gush out to judge that whether thermopair damages, and has improved security by detecting the valve place.
6. of the present utility model simple in structure, design science is reasonable, and security is higher, measure core body change convenient, can be high temperature resistant, high pressure, high wearing and tearing, deep-etching, be a kind of blast furnace leakproof wind-heat galvanic couple that can effectively prevent high temperature, high-pressure hot wind ejection.
Description of drawings
Fig. 1 is a profile front view of the present utility model;
Fig. 2 is the upward view of Fig. 1;
Fig. 3 is that the A-A of Fig. 2 is to cut-open view;
Fig. 4 is the C portion partial enlarged drawing of Fig. 3;
Fig. 5 is that the B-B of Fig. 2 is to cut-open view.
Embodiment
The utility model is described in further detail below by specific embodiment, and following examples are descriptive, is not determinate, can not limit protection domain of the present utility model with this.
A kind of blast furnace leakproof wind-heat galvanic couple; by thermometric core body 14; protection tube 4; steel terminal box 1 constitutes; the thermometric core body is the platinum rhodium armoured thermocouple core body of S calibration number or B calibration number; protection tube constitutes by three layers and is welded on the terminal box; it is respectively corundum protection tube 13 from inside to outside; recrystallized silicon carbide protection tube 12 and GH3039 high temperature alloy pipes 11; recrystallized silicon carbide protection tube and GH3039 high temperature alloy pipes are bonding by high-temperature plastic; the thermometric core body is coaxial to be placed in the protection tube; its thermometric core body outer wall that extends in the steel terminal box is coaxial bonding by high-temp glue and adhesion pipe 8 (material is 304SS); on this adhesion pipe outer wall; coaxial respectively plain washer 9 (material is 304SS) and the taper washer 10 (material is asbestos) of installing in bottom; and press adhesion pipe outer wall upper flat packing ring by cutting ferrule screw thread 6; make the taper washer radial deformation of adhesion pipe outer wall bottom press the adhesion pipe, thereby play the effect fastening the thermocouple temperature measurement core body.Be equipped with on the steel terminal box and detect valve 2, wherein the lead-in wire 7 of thermometric core body is connected with its external cabling terminal 3 by terminal box internal-flange bolt 5.
Under operate as normal, when the protection tube front end was impaired, because of the protection of GH3039 high temperature alloy pipes, cutting ferrule screw thread, internal-flange bolt and steel terminal box is arranged, the high pressure-temperature thermal current was controlled at product inside effectively, had reached the purpose of safety in production.
When carrying out the installation of thermopair at the scene, at first wall bushing is welded on the equipment, this thermopair is connected by flange with wall bushing again, thermopair terminal box external cabling terminal causes display control section, can finish on-the-spot the installation.
Claims (8)
1. blast furnace leakproof wind-heat galvanic couple; constitute by thermometric core body, protection tube, steel terminal box; thermometric core body and protection tube are packed on the steel terminal box; the thermometric core body is coaxial to be placed in the protection tube, it is characterized in that: the lead-in wire of thermometric core body is connected with the external cabling terminal by the internal-flange bolt of steel terminal box.
2. blast furnace leakproof wind-heat galvanic couple according to claim 1 is characterized in that: described thermometric core body is the platinum rhodium armoured thermocouple core body of S calibration number or B calibration number.
3. blast furnace leakproof wind-heat galvanic couple according to claim 1, it is characterized in that: described thermometric core body and steel terminal box install by the cutting ferrule screw thread.
4. blast furnace leakproof wind-heat galvanic couple according to claim 1 is characterized in that: the coaxial adhesion pipe that is fixed with of outer wall of thermometric core body in the described steel terminal box, coaxial respectively plain washer and the taper washer of being fixed with in the outer wall upper and lower part of this adhesion pipe.
5. blast furnace leakproof wind-heat galvanic couple according to claim 4 is characterized in that: described adhesion pipe and plain washer are 304SS adhesion pipe and 304SS plain washer, and taper washer is an asbestos washer.
6. blast furnace leakproof wind-heat galvanic couple according to claim 1; it is characterized in that: described protection tube is three layers and coaxial setting; be respectively corundum protection tube, recrystallized silicon carbide protection tube and reinforced pipe from inside to outside, recrystallized silicon carbide protection tube and reinforced pipe are bonding by high-temperature plastic.
7. blast furnace leakproof wind-heat galvanic couple according to claim 6, it is characterized in that: described reinforced pipe is the GH3039 high temperature alloy pipes.
8. blast furnace leakproof wind-heat galvanic couple according to claim 1 is characterized in that: be equipped with one on the described steel terminal box and detect valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200737287U CN201163218Y (en) | 2008-01-22 | 2008-01-22 | Anti-ventilation leakage thermocouple of blast furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200737287U CN201163218Y (en) | 2008-01-22 | 2008-01-22 | Anti-ventilation leakage thermocouple of blast furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201163218Y true CN201163218Y (en) | 2008-12-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200737287U Expired - Lifetime CN201163218Y (en) | 2008-01-22 | 2008-01-22 | Anti-ventilation leakage thermocouple of blast furnace |
Country Status (1)
| Country | Link |
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| CN (1) | CN201163218Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101846557A (en) * | 2010-05-18 | 2010-09-29 | 丁锡端 | Special thermoelectric couple for high-temperature hydrogen sulfide corrosion-resistant sulphur incinerator and manufacture method thereof |
| CN102147296A (en) * | 2011-01-28 | 2011-08-10 | 杭州金舟电炉有限公司 | Thermocouple with thermometric hole |
| CN102538994A (en) * | 2010-12-31 | 2012-07-04 | 贵州航空发动机研究所 | Small inertia galvanic couple |
| CN105758543A (en) * | 2016-04-21 | 2016-07-13 | 洛阳西格马炉业股份有限公司 | High-melting metal or alloy thermocouple, manufacturing method thereof, and temperature correction method thereof |
| CN108151895A (en) * | 2017-12-28 | 2018-06-12 | 大连交通大学 | A kind of customized transient response temperature sensor of size and preparation method thereof |
-
2008
- 2008-01-22 CN CNU2008200737287U patent/CN201163218Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101846557A (en) * | 2010-05-18 | 2010-09-29 | 丁锡端 | Special thermoelectric couple for high-temperature hydrogen sulfide corrosion-resistant sulphur incinerator and manufacture method thereof |
| CN102538994A (en) * | 2010-12-31 | 2012-07-04 | 贵州航空发动机研究所 | Small inertia galvanic couple |
| CN102147296A (en) * | 2011-01-28 | 2011-08-10 | 杭州金舟电炉有限公司 | Thermocouple with thermometric hole |
| CN105758543A (en) * | 2016-04-21 | 2016-07-13 | 洛阳西格马炉业股份有限公司 | High-melting metal or alloy thermocouple, manufacturing method thereof, and temperature correction method thereof |
| CN105758543B (en) * | 2016-04-21 | 2019-07-26 | 洛阳量千度超高温传感器有限公司 | A kind of refractory metal or alloy thermocouple and its production and temperature correction method |
| CN108151895A (en) * | 2017-12-28 | 2018-06-12 | 大连交通大学 | A kind of customized transient response temperature sensor of size and preparation method thereof |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20081210 |
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| CX01 | Expiry of patent term |