CN101206144B - High pressure thermojunction of gasification furnace - Google Patents
High pressure thermojunction of gasification furnace Download PDFInfo
- Publication number
- CN101206144B CN101206144B CN2007100945928A CN200710094592A CN101206144B CN 101206144 B CN101206144 B CN 101206144B CN 2007100945928 A CN2007100945928 A CN 2007100945928A CN 200710094592 A CN200710094592 A CN 200710094592A CN 101206144 B CN101206144 B CN 101206144B
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- CN
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- Prior art keywords
- thermocouple
- nut
- cutting ferrule
- flange
- screw
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000002309 gasification Methods 0.000 title claims abstract description 15
- 238000012856 packing Methods 0.000 claims description 17
- 230000000903 blocking effect Effects 0.000 claims 1
- 238000007789 sealing Methods 0.000 abstract description 6
- 230000003449 preventive effect Effects 0.000 abstract description 3
- 230000007797 corrosion Effects 0.000 abstract description 2
- 238000005260 corrosion Methods 0.000 abstract description 2
- 230000002265 prevention Effects 0.000 abstract 5
- 239000000945 filler Substances 0.000 abstract 2
- 239000007789 gas Substances 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Substances N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- YXTPWUNVHCYOSP-UHFFFAOYSA-N bis($l^{2}-silanylidene)molybdenum Chemical compound [Si]=[Mo]=[Si] YXTPWUNVHCYOSP-UHFFFAOYSA-N 0.000 description 3
- 229910052593 corundum Inorganic materials 0.000 description 3
- 239000010431 corundum Substances 0.000 description 3
- 229910021343 molybdenum disilicide Inorganic materials 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 239000002131 composite material Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000565 sealant Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
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Abstract
The invention relates to a high pressure thermocouple of a gasification furnace, which comprises an armored thermocouple internal leakage prevention device and a flange interface leakage prevention device. An armored thermocouple is inserted through a hexagonal screw in the armored thermocouple internal leakage prevention device, is inserted out of the end and is screwed with a socket nut, a socket arranged in the socket nut is used to press another socket so as to tighten and clamp the armored thermocouple which is inserted out of the end and is screwed with a nut, a tightening nut is used to push a washer inside, the washer allows the sealing filler to crush and press the thermocouple filament; the other end of an armored thermocouple in the flange interface leakage prevention device is inserted through a hexagonal screw in the flange interface leakage prevention device the hexagonal screw is screwed on the flange interface via threads and is tightened to press and push a washer and plunger ring arranged in the flange interface so that the sealing filler in the front of the plunger ring crush and jam the armored thermocouple; the armored thermocouple of the hexagonal screw is inserted out of the end and is screwed with a socket nut and a socket arranged in the socket nut is used to press another socket so as to tighten and clamp the armored thermocouple. The thermocouple has a simple structure, is resistant to high temperature, is corrosion preventive and prevents high pressure.
Description
Technical field
The present invention relates to a kind of thermopair, especially a kind of gasification furnace high-temperature-resistant high-pressure-resistant thermopair.
Background technology
Common gasification furnace commonly used is that outer protection tube is sealed into main structure with the thermopair product at present, in case outer protection tube breakage, furnace gas connects to protection tube, very easily at thermocouple cold junction and terminal box place the gas leakage takes place, and potential safety hazard occurs; Can cause thermo wires to lose efficacy simultaneously, influence thermocouple temperature measurement precision, serviceable life and reliability because of corrosion.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 when making and installing and inconvenience, and can not be changed down in working order.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.
For addressing the above problem, Chinese invention patent 200620112076.4,2007.12.12 disclose a kind of coal gasifier high-temperature-resistant high-pressure-resistant thermopair, it comprises hot junction assembly, flange assembly and connecting terminal components, the 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.Because metal connecting tube is used for fluid sealant bonding between the metal connecting tube at molybdenum disilicide pipe, corundum protection tube and thermopair middle part; and composite flange, seal flange are all used heat resistant joint ring; when temperature and pressure in the stove surpassed 400 ℃ and 10MPa, sealing was easily lost efficacy, and caused thermopair to leak.In case gas leakage can prolong thermopair leak to the outside set off an explosion, cause the person and property loss.
Summary of the invention
The present invention is in order to solve the technical matters of gasification furnace with the anti-leak of high-temperature-resistant high-pressure-resistant thermopair, and provide a kind of high pressure thermojunction of gasification furnace, this high pressure thermojunction has dual device for preventing leakage, can play to prevent to leak, and plays anti-high pressure, corrosion-resisting function simultaneously.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of high pressure thermojunction of gasification furnace, comprise at least one armouring thermocouple, flange convex platform interface, last protection tube, terminal box, this thermopair also comprises anti-internal leakage device of armoured thermocouple and flange-interface device for preventing leakage, described flange-interface device for preventing leakage is by the second cutting ferrule nut, the three, four cutting ferrule, the two or six side's screw, second packing ring, second trim ring, second airtight and watertight padding is formed, wherein, the armouring thermocouple other end passes the two or six side's screw, the two or six side's screw is spun on the flange convex platform interface by screw thread, and tightens and press second packing ring and second trim ring of pushing in flange convex platform interface, makes second airtight and watertight padding crushing jam-pack armouring thermocouple of the second trim ring front; The armouring thermocouple of described the two or six side's screw penetrates the outer second cutting ferrule nut that is rotary with of end, and blocks the armouring thermocouple by placing the 3rd cutting ferrule in the second cutting ferrule nut to press the 4th cutting ferrule to tighten up;
The anti-internal leakage device of described armoured thermocouple is by first nut, first packing ring, first trim ring, first airtight and watertight padding, the one or six side's screw, first, two cutting ferrules, the first cutting ferrule nut is formed, wherein, be installed with the armouring thermocouple in the one or six side's screw, it pierces into the outer first cutting ferrule nut that is rotary with of end, and blocks the armouring thermocouple by placing second cutting ferrule in the first cutting ferrule nut to press first cutting ferrule to tighten up, and traversing through end is rotary with first nut outward, and push first packing ring in it by tightening first nut, be characterized in: first trim ring makes first airtight and watertight padding compress the thermo wires of armouring thermocouple.
The armouring thermocouple is three to 24, and is uniform arrangement in last protection tube; Flange convex platform interface is connected by taper thread with flange and welds fixing; Last protection tube respectively with flange convex platform interface, terminal box is by the screw thread fixed seal connection; Airtight and watertight padding is AL
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The invention has the beneficial effects as follows: because the thermo wires place of the armoured thermocouple in last protection tube is equipped with the anti-internal leakage device of armoured thermocouple, make in the armouring thermocouple and be unlikely to drain to the outside if having to leak, and the sealing withstand voltage can reach 15MPa, and the heatproof value reaches 500 ℃; Mounting flange interface device for preventing leakage in flange-interface, this device has two anti-leak functions, and when the flange end opening had leakage, liquid or gas can not prolong armoured thermocouple and leak into the outside, and can be high temperature resistant 1000 ℃, withstand voltage 15MPa; When first leakage preventive portion can not thoroughly prevent to leak, second leakage preventive portion played anti-high pressure, corrosion-resisting function simultaneously.Therefore, the present invention has simple in structure, and is high temperature resistant, anti-high pressure, characteristics such as anticorrosion.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is a thermopair sealed structural representation of the present invention;
Fig. 3 is along the cut-open view of A-A among Fig. 1.
Embodiment
The present invention is further described below in conjunction with drawings and Examples.
As Fig. 1, shown in 2, high pressure thermojunction of gasification furnace of the present invention comprises flange convex platform interface 15, at least one armouring thermocouple 16, flange 17, last protection tube 18, terminal box 19, anti-internal leakage device of armoured thermocouple and flange-interface device for preventing leakage.
The anti-internal leakage device of armoured thermocouple is by first nut 1, first packing ring 2, first trim ring 3, first airtight and watertight padding 4, the one or six side's screw 5, the first, two cutting ferrule 6,7, the first cutting ferrule nut 7A forms, wherein, be installed with armouring thermocouple 16 in the one or six side's screw 5, it pierces into the outer first cutting ferrule nut 7A that is rotary with of end, and block the armouring first cutting ferrule nut 7A by placing second cutting ferrule 7 in the first cutting ferrule nut 7A to press first cutting ferrule 6 to tighten up, traversing through end is rotary with first nut 1 outward, and makes first airtight and watertight padding 4 compress the thermo wires 1A of armouring thermocouple 16 by tightening first packing ring, 2, the first trim rings 3 of first nut 1 pushing in it.
The flange-interface device for preventing leakage is by the second cutting ferrule nut, 8, the three, four cutting ferrules 9,10, the two or six side's screw 11, the second packing rings 12, the second trim rings 13, second airtight and watertight padding 14 is formed, wherein, armouring thermocouple 16 other ends pass the two or six side's screw 11, the two or six side's screws 11 and are spun on the flange by screw thread, and tighten and press second packing ring 12 and second trim ring 13 of pushing in flange convex platform interface 15, make second airtight and watertight padding, the 14 crushing jam-pack armouring thermocouples 16 of second trim ring, 13 fronts; The armouring thermocouple 16 of the two or six side's screw 11 penetrates the outer second cutting ferrule nut 8 that is rotary with of end, and blocks armouring thermocouple 16 by placing the second cutting ferrule nut, 8 the 3rd interior cutting ferrules 9 to press the 4th cutting ferrule 10 to tighten up.
Leakage device in armoured thermocouple is anti-: thermo wires is exposed in the strip off of armouring thermocouple pierce into first nut 1, first packing ring 2, first trim ring 3, first airtight and watertight padding 4, the one or six side's screw 5, first, two cutting ferrules 6,7, the first cutting ferrule nut 7A, the first cutting ferrule nut 7A and the one or six side's screw 5 are tightened pushing second cutting ferrule 7, under second cutting ferrule, 7 pressure, first cutting ferrule 6 is tightened up and block armouring thermocouple 16, again first nut 1 is tightened pushing first packing ring 2, under the pressure of first packing ring 2, promote first trim ring 3, make first airtight and watertight padding 4 compress thermo wires 1A under the pressure transmission of first trim ring 3, make in the armouring thermocouple 16 if having to reveal is unlikely to drain to the outside, this sealing can withstand voltage 10MPa, 500 ℃ of heatproofs.
The flange-interface leakage preventing device divides two parts leakage-preventing, armoured thermocouple 16 is pierced into the second cutting ferrule nut 8, the 3rd, four cutting ferrules 9,10, the two or six side's screw 11, second packing ring 12, second trim ring 13, second airtight and watertight padding 14, flange convex platform interface 15 is tightened the two or six side's screw 11 earlier and is made second packing ring 12 with flange convex platform interface 15, second trim ring 13 is stressed and advances second airtight and watertight padding, 14, the second airtight and watertight paddings 14 crushed tightly jam-pack armoured thermocouple 16 under the two or six side's screw 11 pressure use, when flange 17 end openings have leakage, liquid or gas can not be leaked to the outside along armoured thermocouple 16, (this is the first of leakproof), but 1000 ℃ of heatproofs, withstand voltage 10MPa.After first's second screw 11 is tightened with flange convex platform interface 15, and then second nut 8 tightened (two cutting ferrule) the 3rd cutting ferrule 9 is stressed pass to the 4th cutting ferrule 10, the 4th cutting ferrule 10 cutting ferrule under the effect of power is tightened up block armoured thermocouple 16.Just in case can not thoroughly prevent to reveal, under the effect of the 4th cutting ferrule 10, also can play preventing to reveal when first, play anti-high pressure, corrosion-resisting function simultaneously.The first, two airtight and watertight padding 4,14 is AL
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3
As Fig. 1, shown in 3, armouring thermocouple 16 is three to 24, and uniform arrangement is three to 20 four measuring points in last protection tube 18; Flange convex platform interface 15 is connected by taper thread with flange 17 and welds fixing; Last protection tube 18 respectively with flange convex platform interface 15, terminal box 19 is by the screw thread fixed seal connection.
Claims (5)
1. high pressure thermojunction of gasification furnace, comprise at least one armouring thermocouple (16), flange convex platform interface (15), last protection tube (18), terminal box (19), this thermopair also comprises anti-internal leakage device of armoured thermocouple and flange-interface device for preventing leakage, described flange-interface device for preventing leakage is by the second cutting ferrule nut (8), the 3rd, four cutting ferrules (9,10), the two or six side's screw (11), second packing ring (12), second trim ring (13), second airtight and watertight padding (14) is formed, wherein, armouring thermocouple (16) other end passes the two or six side's screw (11), and the two or six side's screw (11) is spun on the flange convex platform interface (15) by screw thread, and tighten and press second packing ring (12) and second trim ring (13) of pushing in flange convex platform interface (15), make second airtight and watertight padding (14) the crushing jam-pack armouring thermocouple (16) of second trim ring (13) front; The armouring thermocouple (16) of described the two or six side's screw (11) penetrates the outer second cutting ferrule nut (8) that is rotary with of end, and blocks armouring thermocouple (16) by placing interior the 3rd cutting ferrule (9) of the second cutting ferrule nut (8) to press the 4th cutting ferrule (10) to tighten up;
The anti-internal leakage device of described armoured thermocouple is by first nut (1), first packing ring (2), first trim ring (3), first airtight and watertight padding (4), the one or six side's screw (5), first, two cutting ferrules (6,7), the first cutting ferrule nut (7A) is formed, and wherein, is installed with armouring thermocouple (16) in the one or six side's screw (5), it pierces into the outer first cutting ferrule nut (7A) that is rotary with of end, and blocking armouring thermocouple (16) by placing second cutting ferrule (7) in the first cutting ferrule nut (7A) to press first cutting ferrule (6) to tighten up, traversing through end is rotary with first nut (1) outward, and pushes first packing ring (2) in it by tightening first nut (1), it is characterized in that described first trim ring (3) makes first airtight and watertight padding (4) compress the thermo wires (1A) of armouring thermocouple (16).
2. high pressure thermojunction of gasification furnace according to claim 1 is characterized in that, described armouring thermocouple (16) is three to 24, and is uniform arrangement in last protection tube (18).
3. high pressure thermojunction of gasification furnace according to claim 1 is characterized in that, described flange convex platform interface (15) is connected by taper thread with flange (17) and welds fixing.
4. high pressure thermojunction of gasification furnace according to claim 1 is characterized in that, described go up protection tube (18) respectively with flange convex platform interface (15), terminal box (19) is by the screw thread fixed seal connection.
5. high pressure thermojunction of gasification furnace according to claim 1 is characterized in that, described the first, two airtight and watertight padding (4,14) is Al
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3
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100945928A CN101206144B (en) | 2007-12-20 | 2007-12-20 | High pressure thermojunction of gasification furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100945928A CN101206144B (en) | 2007-12-20 | 2007-12-20 | High pressure thermojunction of gasification furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101206144A CN101206144A (en) | 2008-06-25 |
| CN101206144B true CN101206144B (en) | 2010-12-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007100945928A Expired - Fee Related CN101206144B (en) | 2007-12-20 | 2007-12-20 | High pressure thermojunction of gasification furnace |
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| Country | Link |
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| CN (1) | CN101206144B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103090985A (en) * | 2011-10-31 | 2013-05-08 | 清华大学 | Sheathed thermocouple component penetrating high-temperature high-pressure helium pressure shell |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN102042881B (en) * | 2010-11-05 | 2012-10-31 | 西北化工研究院 | System for measuring outer surface temperature of metal shell of air-flow bed reactor |
| CN106268304A (en) * | 2016-09-20 | 2017-01-04 | 重庆鲍斯可燃气工程有限公司 | Compressed air purification system and using method thereof |
| CN106268536A (en) * | 2016-09-20 | 2017-01-04 | 重庆鲍斯可燃气工程有限公司 | Reactor for compressed air purification system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2447761Y (en) * | 2000-10-18 | 2001-09-12 | 浙江省永康温度仪表厂 | Integral multi-point armoured thermo-couple |
| CN201152786Y (en) * | 2007-12-20 | 2008-11-19 | 吴加伦 | High-pressure thermocouple for gasifying stove |
-
2007
- 2007-12-20 CN CN2007100945928A patent/CN101206144B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2447761Y (en) * | 2000-10-18 | 2001-09-12 | 浙江省永康温度仪表厂 | Integral multi-point armoured thermo-couple |
| CN201152786Y (en) * | 2007-12-20 | 2008-11-19 | 吴加伦 | High-pressure thermocouple for gasifying stove |
Non-Patent Citations (4)
| Title |
|---|
| JP特开2001-221692A 2001.08.17 |
| JP特开2003-270053A 2003.09.25 |
| 沈秋平，贺友光.核电站反应堆热电偶机械密封件研究.中国核科技报告 00.1991,(00),368-374. |
| 沈秋平,贺友光.核电站反应堆热电偶机械密封件研究.中国核科技报告 00.1991,(00),368-374. * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103090985A (en) * | 2011-10-31 | 2013-05-08 | 清华大学 | Sheathed thermocouple component penetrating high-temperature high-pressure helium pressure shell |
| CN103090985B (en) * | 2011-10-31 | 2015-03-04 | 清华大学 | Sheathed thermocouple component penetrating high-temperature high-pressure helium pressure shell |
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| Publication number | Publication date |
|---|---|
| CN101206144A (en) | 2008-06-25 |
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