CN200989831Y - High-temperature and high-voltage resisting electric thermo-couple for coal gasification furnace - Google Patents
High-temperature and high-voltage resisting electric thermo-couple for coal gasification furnace Download PDFInfo
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- CN200989831Y CN200989831Y CN200620112076.4U CN200620112076U CN200989831Y CN 200989831 Y CN200989831 Y CN 200989831Y CN 200620112076 U CN200620112076 U CN 200620112076U CN 200989831 Y CN200989831 Y CN 200989831Y
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Abstract
The utility model discloses a high temperature and high pressure resisting thermocouple used for gas-fired furnace, which comprises a hot-end component, a flange component and a wiring terminal component. The hot-end component is arranged in front of the thermocouple. The flange component is arranged in the middle of the thermocouple. The wiring terminal component is arranged at the tail end of the thermocouple. The thermocouple of the utility model is provided with simple and convenient high pressure seal structure. The hot-end is provided with conglutination preventing protection pipe. The thermocouple of the utility model has the advantages of that high pressure resisting, corrosion resistant, resisting furnace slag adherence and reliable service life. The utility model has the advantages of safe operation, miniaturization and high reliability. All the components are independent in function but can cooperate in all right. The whole structure is one integrated mass with comprehensive functions and succinct structure. The utility model is alike to the ordinary thermocouple in shape without external connection auxiliary equipment, which is convenient for installation and disassembly, easy to maintenance.
Description
Technical field the utility model relates to a kind of surveying instrument, particularly a kind of coal gasifier high-temperature-resistant high-pressure-resistant thermopair.
Background technology is common gasification furnace thermopair product at present, and one type can be referred to as plain type, and this product is similar with other ordinary hot galvanic couples, no seal element, no leakage prevention capability, no anti protection tube.In case protection tube breakage, furnace gas connect to protection tube, at thermocouple cold junction and terminal box place the gas leakage takes place very easily, potential safety hazard appears; Simultaneously, the hot junction adhesion makes protection tube not produce destruction because of matching with the slag expansion coefficient, thereby causes furnace gas to run through, and thermo wires lost efficacy because of corrosion, influenced thermocouple temperature measurement precision, serviceable life and reliability.Another kind of gasification furnace thermopair is a nitrogen blowing protection thermopair.This thermopair is introduced the air pressure that adds in nitrogen balance thermopair inner chamber and the stove, device for preventing leakage is set simultaneously with collaborative raising thermopair functional reliability and security, but this thermocouple structure complexity, make, install, change all difficult, simultaneously, owing to need add the nitrogen device, so the operation and maintenance cost height of this thermopair, the labour intensity of workman's operation is big, and its complicated system architecture composition has also brought use loaded down with trivial details and inconvenient.
Summary of the invention is in order to overcome the above-mentioned defective that exists in the prior art, a kind of high temperature resistant, high pressure resistant, corrosion-resistant, anti-adhesion of ad hoc meter, small, simple for structure, easy installation and removal, the coal gasifier high-temperature-resistant high-pressure-resistant thermopair that is easy to safeguard.The technical solution of the utility model is achieved in that a kind of coal gasifier high-temperature-resistant high-pressure-resistant thermopair, comprise hot junction assembly, flange assembly and connecting terminal components, described hot junction assembly is located at the front end of thermopair, be followed successively by diplopore porcelain tube, corundum protection tube, molybdenum disilicide pipe or other outer protection tube, antiseized connecting legs that can use under relevant temperature, environment from inside to outside, metal connecting tube is used for the fluid sealant of bonding, sealing usefulness between the metal connecting tube at molybdenum disilicide pipe, corundum protection tube and thermopair middle part; Described flange assembly is located at the middle part of thermopair, and it comprises composite flange, seal flange and heat resistant joint ring; Described connecting terminal components is located at the tail end of thermopair, it is made of thermocouple wire, thermocouple lead, seal element, anti-explosion terminal box and sealing hold-down bolt, and wherein the positive and negative polarities silk of the thermocouple wire diplopore that passes the diplopore porcelain tube respectively is welded into temperature-sensitive head at the front end of thermocouple wire.
This thermopair has easy high pressure sealing mechanism, and the hot junction has the anti protection tube; High pressure resistant, corrosion-resistant, anti-slag adhesion, the life-span is reliable; Security of operation has miniaturization, high reliability advantage; The independent no-float again of each assembly function, one-piece construction one integrated mass, complete function and simple for structure; Be more or less the same with ordinary hot galvanic couple profile, do not have external servicing unit, installing/dismounting is easy, is easy to safeguard.
Description of drawings is further described the utility model below in conjunction with accompanying drawing.
Fig. 1 is a structural representation of the present utility model
Fig. 2 is the A-A enlarged drawing of Fig. 1
Embodiment
Shown in Fig. 1-2, the utility model is a kind of coal gasifier high-temperature-resistant high-pressure-resistant thermopair, comprise hot junction assembly 1, flange assembly 2 and connecting terminal components 3, described hot junction assembly 1 is located at the front end of thermopair, be followed successively by diplopore porcelain tube 11, corundum protection tube 12, molybdenum disilicide pipe 13 or other outer protection tube, antiseized connecting legs 14 that can under relevant temperature, environment, use from inside to outside, metal connecting tube 17 is used between molybdenum disilicide pipe 13, corundum protection tube 12 and the metal connecting tube 17 fluid sealant 15,16 of bonding, sealing usefulness; Described flange assembly 2 is located at the middle part of thermopair, and it comprises composite flange 21, seal flange 22 and heat resistant joint ring 23; Described connecting terminal components 3 is located at the tail end of thermopair, it is made of thermocouple wire 31, thermocouple lead 32, seal element 33, anti-explosion terminal box 34 and sealing hold-down bolt 35, and wherein the positive and negative polarities silk of thermocouple wire 31 diplopore that passes diplopore porcelain tube 11 respectively is welded into temperature-sensitive head 4 at the front end of thermopair.
Thermopair global facility complete function of the present utility model and simple for structure has reliable high pressure sealing mechanism and the convenient whole connection terminal of installing, changing.Antiseized connecting leg 14 is equipped with in the utility model hot junction, and this anti protection tube 14 is the blind hole pipe, is used for completely cutting off the protection tube of its internal layer and contacting of slag, prevents that other protection tubes from producing the breakage that does not match and cause with the slag expansion coefficient because of adhesion; High temperature resistant, corrosion-resistant protection tubes such as molybdenum disilicide pipe 13 are housed, have the ability of using steady in a long-term under corresponding operating mode; High temperature resistant protection tubes such as corundum protection tube 12 are housed,, also play protection thermocouple wire 31 simultaneously as thermo wires and outer protection tube insulation usefulness; Diplopore porcelain tube 11 is housed, as the insulating material between the electric heating thermo wires 31 positive and negative polarities silks and play a supportive role; Described thermocouple wire 31, its hot junction produces the thermoelectrical potential signal and transfers to cold junction; Metal connecting tube 17 is housed, guarantees being connected of hot junction assembly 1 and flange assembly 2; Select fluid sealant 15 and 16 for use, be used for bonding, sealing between molybdenum disilicide pipe 13, corundum protection tube 12 and the metal connecting tube 17; Described composite flange 21 is the welding body of connecting pipe between large and small two flanges and two flanges, and it is connected with connecting pipe 17 with thread forms, simultaneously with actings in conjunction such as body of heater upper flange, sealing ring, nut, double-screw bolt, seal flange face.Little flange plays the sealed wiring port jointly on described seal flange 22, heat resistant joint ring 23 and the composite flange 21.
Fig. 2 is the connecting terminal components A-A enlarged drawing on Fig. 1, wherein 32 for to go between to the thermocouple lead of terminal box, 33 seal elements are high temperature resistant filler and glue envelope, 34 are the anti-explosion terminal box for connection output signal lead-in wire, 35 are the sealing hold-down bolt, and 36 is the wiring tie point of thermocouple wire 31 and thermocouple lead 32.During the supply of material, connecting terminal components 3 and seal flange 22 can be used as the whole supply of material, but also integral replacing during replacing.Coal gasifier of the present utility model is a kind of assembled thermopair that uses for thermometric field in the gasification furnace stove with the high-temperature-resistant high-pressure-resistant thermopair, also can be used for other high temperature (measure temperature≤1700 ℃), high pressure (≤10MPa) the continous way temperature survey of environment.
Claims (1)
1, a kind of coal gasifier high-temperature-resistant high-pressure-resistant thermopair, comprise hot junction assembly (1), flange assembly (2) and connecting terminal components (3), it is characterized in that: described hot junction assembly (1) is located at the front end of thermopair, be followed successively by diplopore porcelain tube (11) from inside to outside, corundum protection tube (12), molybdenum disilicide pipe (13) or other can be in relevant temperature, the outer protection tube that environment uses down, antiseized connecting leg (14), metal connecting tube (17) is used for molybdenum disilicide pipe (13), bonding between corundum protection tube (12) and the metal connecting tube (17), the fluid sealant (15) of sealing usefulness, (16); Described flange assembly (2) is located at the middle part of thermopair, and it comprises composite flange (21), seal flange (22) and heat resistant joint ring (23); Described connecting terminal components (3) is located at the tail end of thermopair, it is made of thermocouple wire (31), thermocouple lead (32), seal element (33), anti-explosion terminal box (34) and sealing hold-down bolt (35), and wherein the positive and negative polarities silk of thermocouple wire (31) diplopore that passes diplopore porcelain tube (11) respectively is welded into temperature-sensitive head (4) at the front end of thermopair.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200620112076.4U CN200989831Y (en) | 2006-12-27 | 2006-12-27 | High-temperature and high-voltage resisting electric thermo-couple for coal gasification furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200620112076.4U CN200989831Y (en) | 2006-12-27 | 2006-12-27 | High-temperature and high-voltage resisting electric thermo-couple for coal gasification furnace |
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| Publication Number | Publication Date |
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| CN200989831Y true CN200989831Y (en) | 2007-12-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200620112076.4U Expired - Lifetime CN200989831Y (en) | 2006-12-27 | 2006-12-27 | High-temperature and high-voltage resisting electric thermo-couple for coal gasification furnace |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101807750A (en) * | 2010-04-22 | 2010-08-18 | 北京航天计量测试技术研究所 | Signal connection device suitable for high-temperature and high-pressure conditions |
| CN102072782A (en) * | 2010-08-20 | 2011-05-25 | 丁锡端 | Novel non-welding thermoelectric couple (resistor) |
| CN102103024A (en) * | 2010-04-22 | 2011-06-22 | 北京航天计量测试技术研究所 | Device and method for measuring hearth temperature of coal gasification furnace with double-layer furnace body |
| CN103630256A (en) * | 2013-06-27 | 2014-03-12 | 杭州亿泰自控设备有限公司 | Gasification furnace thermocouple and preparation method of thermocouple protection sleeve |
| CN105136324A (en) * | 2015-07-29 | 2015-12-09 | 广西南宁迈点装饰工程有限公司 | Thermal resistor protection sleeve |
| CN105466590A (en) * | 2016-01-07 | 2016-04-06 | 中国核电工程有限公司 | Thermocouple specially for high temperature |
-
2006
- 2006-12-27 CN CN200620112076.4U patent/CN200989831Y/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101807750A (en) * | 2010-04-22 | 2010-08-18 | 北京航天计量测试技术研究所 | Signal connection device suitable for high-temperature and high-pressure conditions |
| CN101807750B (en) * | 2010-04-22 | 2011-06-22 | 北京航天计量测试技术研究所 | Signal connection device suitable for high-temperature and high-pressure conditions |
| CN102103024A (en) * | 2010-04-22 | 2011-06-22 | 北京航天计量测试技术研究所 | Device and method for measuring hearth temperature of coal gasification furnace with double-layer furnace body |
| CN102103024B (en) * | 2010-04-22 | 2012-10-10 | 北京航天计量测试技术研究所 | Device and method for measuring hearth temperature of coal gasification furnace with double-layer furnace body |
| CN102072782A (en) * | 2010-08-20 | 2011-05-25 | 丁锡端 | Novel non-welding thermoelectric couple (resistor) |
| CN102072782B (en) * | 2010-08-20 | 2012-08-08 | 丁锡端 | Novel non-welding thermoelectric couple (resistor) |
| CN103630256A (en) * | 2013-06-27 | 2014-03-12 | 杭州亿泰自控设备有限公司 | Gasification furnace thermocouple and preparation method of thermocouple protection sleeve |
| CN103630256B (en) * | 2013-06-27 | 2015-11-18 | 杭州亿泰自控设备有限公司 | The method for making of gasification oven thermocouple and thermocouple protective casing thereof |
| CN105136324A (en) * | 2015-07-29 | 2015-12-09 | 广西南宁迈点装饰工程有限公司 | Thermal resistor protection sleeve |
| CN105466590A (en) * | 2016-01-07 | 2016-04-06 | 中国核电工程有限公司 | Thermocouple specially for high temperature |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20071212 |
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| EXPY | Termination of patent right or utility model |