CN105300543A - Long-life thermocouple for sulfur-producing burner - Google Patents
Long-life thermocouple for sulfur-producing burner Download PDFInfo
- Publication number
- CN105300543A CN105300543A CN201510735248.7A CN201510735248A CN105300543A CN 105300543 A CN105300543 A CN 105300543A CN 201510735248 A CN201510735248 A CN 201510735248A CN 105300543 A CN105300543 A CN 105300543A
- Authority
- CN
- China
- Prior art keywords
- burner
- sulfur
- tube
- thermocouple
- alundum tube
- 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.)
- Pending
Links
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 title claims abstract description 45
- 229910052717 sulfur Inorganic materials 0.000 title claims abstract description 43
- 239000011593 sulfur Substances 0.000 title claims abstract description 43
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 40
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 20
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 15
- 239000000956 alloy Substances 0.000 claims abstract description 15
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 10
- 230000001681 protective effect Effects 0.000 claims abstract description 10
- 239000000919 ceramic Substances 0.000 claims abstract description 4
- 239000000835 fiber Substances 0.000 claims abstract description 4
- 230000002000 scavenging effect Effects 0.000 claims description 7
- 238000010276 construction Methods 0.000 claims description 6
- 238000004880 explosion Methods 0.000 claims description 6
- 239000007789 gas Substances 0.000 claims description 6
- 239000000853 adhesive Substances 0.000 claims description 4
- 230000001070 adhesive effect Effects 0.000 claims description 4
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 13
- 230000008569 process Effects 0.000 abstract description 9
- 238000011084 recovery Methods 0.000 abstract description 8
- 238000005259 measurement Methods 0.000 abstract description 5
- 238000010926 purge Methods 0.000 abstract description 3
- 229910001026 inconel Inorganic materials 0.000 abstract description 2
- 239000000463 material Substances 0.000 abstract description 2
- 230000002787 reinforcement Effects 0.000 abstract 3
- 239000000565 sealant Substances 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 10
- 229910052593 corundum Inorganic materials 0.000 description 3
- 238000007664 blowing Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000010431 corundum Substances 0.000 description 2
- 230000009849 deactivation Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000002574 poison Substances 0.000 description 2
- 231100000614 poison Toxicity 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910000619 316 stainless steel Inorganic materials 0.000 description 1
- 229910000714 At alloy Inorganic materials 0.000 description 1
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 238000010224 classification analysis Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 239000013028 medium composition Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 229910001845 yogo sapphire Inorganic materials 0.000 description 1
Landscapes
- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
The invention relates to a long-life thermocouple for a sulfur recovery facility sulfur-producing burner. The thermopile adopts a three-layer protective tube structure of different materials and different thickness, first and second layers outside a thermocouple core are alundum tubes whose theoretical thickness is calculated according to a process medium in the sulfur-producing burner, and an alloy reinforcement tube matched with the sulfur-producing burner and burner structure is arranged outside the alundum tubes; different protective measures are adopted among the three layers of protective tubes, a ceramic fiber tape is wound outside a thermocouple wire, a proper amount of circulating protective nitrogen is introduced between the double layers of alundum tubes through an Inconel alloy purging pipe, and high-temperature sealant is filled between an end part of the alloy reinforcement tube and the alundum tubes; and the end part of the alloy reinforcement tube is sleeved by a light foamed alumina stress-relieving ring. The long-life thermocouple adopts effective protective measures from the thermocouple wire to the protective tubes, has a service life of more than three years, can guarantee safe and reliable measurement in an overhaul period, and solves the problem that a thermocouple for a sulfur-producing burner is frequently damaged but cannot be replaced on line.
Description
Technical field
The present invention relates to a kind of thermopair, be specifically related to sulfur recovery facility burner for producing sulfur thermopair.
Background technology
The burner for producing sulfur of sulfur recovery facility is the core of device, and the measurement of its fire box temperature is the key of production operation.In burner for producing sulfur, the medium permeability such as H2S, H2, S by force, easily reacts, and easily cause thermocouple core poison deactivation, and the operating temperature of 1300 ° of about C generally cannot select protection metal pipe.Current burner for producing sulfur thermopair generally selects common corundum pipe blowing thermocouple to measure; owing to not taking into full account or eliminating the impact that deformation and stress are concentrated; without eliminating stress concentrated parts in structure; protection nitrogen lacks control or controls the reasons such as accurate not; in actual practical process, alundum tube is easy to break, and common corundum pipe blowing thermocouple serviceable life is generally within 1 year.Because burner for producing sulfur is cannot change online after malleation furnace electric thermo-couple damages fault, the production requirement that sulfur recovery facility equipment is repaiied for 3 years can not be met.
Summary of the invention
The present invention seeks to the difficult problem needing to carry out burner for producing sulfur temperature continous-stable measurement for solving within a production cycle, provide a kind of sulfur recovery facility burner for producing sulfur thermopair, can safe and reliable operation more than 3 years, meet while production run temperature detection requires and ensure the sulfur recovery facility normal time between overhauls(TBO).
The present invention solves its technical matters and is achieved through the following technical solutions:
A kind of long-life burner for producing sulfur thermopair; the protection tube comprising anti-explosion terminal box, thermocouple core and be positioned at outside thermocouple core; described protection tube has three-layer protection pipe at least, comprising at least two-layer alundum tube be positioned at outside thermocouple core, and is positioned at the alloy reinforced pipe outside alundum tube.
As the concrete optimization to technique scheme; described protection tube is three-layer protection tubular construction; outer first second layer of thermocouple core is calculate the internal layer alundum tube of theoretic throat and outer alundum tube according to processing medium in burner for producing sulfur, and outer alundum tube is outward the alloy reinforced pipe according to burner for producing sulfur and burner structure coupling.
Be wound around with ceramic fibre strip between thermocouple core and internal layer alundum tube and fill; be full of the inertia protective gas nitrogen of fresh circulation by scavenging duct between outer alundum tube and internal layer alundum tube; adopt high-temperature seal adhesive to fill between alloy reinforced pipe end and outer alundum tube, alloy reinforced pipe end adds stress-removal ring.
Hinge structure of the present invention has following remarkable result:
1, the present invention all takes effective protection measure from thermocouple core to protection tube; protection tube adopts protection multilayer structure; more than 3 years serviceable life of thermopair can be made; safe and reliable measurement in the time between overhauls(TBO) can be ensured, solve the difficult problem that burner for producing sulfur thermopair frequent breakage fault but cannot be changed online.
2, the present invention can be applicable to concrete production technology, the manufacturing and designing of equipment actual condition, and on the basis of not obvious raising manufacturing cost, during ensure that sulfur recovery facility production run, burner for producing sulfur thermocouple measurement is good.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making other embodiments all obtained under creative work prerequisite, belong to the scope of protection of the invention.
A kind of long-life burner for producing sulfur thermopair, is formed primarily of such as lower part: anti-explosion terminal box 1, stainless steel sleeve pipe 2, air intake opening 3, gas outlet 4, process joint flange 5, alloy reinforced pipe 6, stress-removal ring 7, outer alundum tube 8, scavenging duct 9, internal layer alundum tube 10, thermocouple core 11.The structure &processes medium parameter of the material structure of thermopair and burner for producing sulfur, burner matches, and systematization Protective Design.
According to different burner for producing sulfur, burner, select different thermopair manufacturing experience data.
See Fig. 1, anti-explosion terminal box 1 is positioned at thermopair top, and be sandwich construction protection tube outside thermocouple core 11, process joint flange 5 is sleeved on outside protection tube.In the present embodiment, sandwich construction protection tube is three-layer protection tubular construction, outer first second layer of thermocouple core 11 is the internal layer alundum tube 10 and the outer alundum tube 8 that calculate theoretic throat according to processing medium in burner for producing sulfur, outer alundum tube is outward the alloy reinforced pipe 6 according to burner for producing sulfur and burner structure coupling, be wound around with ceramic fibre strip between thermocouple core 11 and internal layer alundum tube and fill, be full of the inertia protective gas nitrogen of fresh circulation by scavenging duct 9 between outer alundum tube 8 and internal layer alundum tube 10, high-temperature seal adhesive is adopted to fill between alloy reinforced pipe 6 end and outer alundum tube 9.Three-layer protection tubular construction and three kinds of safeguard procedures are the guarantees of systematization globality.
Between process joint flange and anti-explosion terminal box, protecting tube 180 ° of offsides leave air intake opening 3 and gas outlet 4.Stainless steel sleeve pipe 2 below anti-explosion terminal box 1 adopts common 316 stainless steel forgings to form, and open purging nitrogen inlet 3 from lower position, the air intake opening 3 first external spinner-type flowmeter that can carry out flow regulation is connected to the public nitrogen line of sulfur recovery facility again, and 4, gas outlet is positioned at alloy reinforced pipe 6 top of sleeve pipe 180 ° of offsides; Scavenging duct 9 in double-deck alundum tube adopts resistant to elevated temperatures Inconel compo pipe; determine scavenging duct open amount according to burner for producing sulfur structure and interior processing medium composition, the seal protection nitrogen circulating appropriate can prevent the stable performance of thermocouple core 11 poison deactivation and ectonexine alundum tube.
Process joint flange 5 is 316 steel flanges of standard, need determine whether increase crossover flange during concrete installation according to burner for producing sulfur actual aperture and short tube size; Weld between reinforced pipe 6 with process joint flange 5, its underpart high-temperature seal adhesive fixes the stress-removal ring 7 of suitable outer diameter, and stress-removal ring 7 can be eliminated the stress that installation process causes and concentrate, and can reduce the impact of sulphur furnace flame air-flow processed simultaneously.
Inside and outside layer alundum tube selects high-quality high-purity (alundum (Al2O3) content is high) to clean alundum tube, and thickness is even, mates with burner for producing sulfur hatch frame.Specifically, manufacturing and designing of a kind of long-life burner for producing sulfur thermopair, based on burner for producing sulfur and the related data such as burner structure and parameters of technique process, carry out classification analysis, then determine that concrete thermopair manufactures specification and proposes to purge the requirement of nitrogen with reference to actual experience data.
Above to the long-life burner for producing sulfur thermopair that the embodiment of the present invention provides, be described in detail, above introduction just understands method of the present invention and core concept thereof for helping; Meanwhile, for one of ordinary skill in the art, according to thought of the present invention, all will change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (5)
1. a long-life burner for producing sulfur thermopair; the protection tube comprising anti-explosion terminal box (1), thermocouple core (11) and be positioned at outside thermocouple core; it is characterized in that: described protection tube has three-layer protection pipe at least; comprising at least two-layer alundum tube be positioned at outside thermocouple core, and be positioned at the alloy reinforced pipe outside alundum tube.
2. long-life burner for producing sulfur thermopair according to claim 1; it is characterized in that: described protection tube is three-layer protection tubular construction; thermocouple core (11) outward first second layer is the internal layer alundum tube (10) and the outer alundum tube (8) that calculate theoretic throat according to processing medium in burner for producing sulfur, and outer alundum tube is outward the alloy reinforced pipe (6) according to burner for producing sulfur and burner structure coupling.
3. long-life burner for producing sulfur thermopair according to claim 2; it is characterized in that: be wound around with ceramic fibre strip between thermocouple core (11) and internal layer alundum tube and fill; be full of the inertia protective gas nitrogen of fresh circulation between outer alundum tube (8) and internal layer alundum tube (10) by scavenging duct (9), between alloy reinforced pipe (6) end and outer alundum tube (8), adopt high-temperature seal adhesive to fill.
4. long-life burner for producing sulfur thermopair according to claim 3, is characterized in that: alloy reinforced pipe end adds stress-removal ring (7).
5. long-life burner for producing sulfur thermopair according to claim 4, is characterized in that: the scavenging duct (9) between ectonexine alundum tube provides the protection nitrogen of desired flow pressure by multiple spot distribution opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510735248.7A CN105300543A (en) | 2015-11-03 | 2015-11-03 | Long-life thermocouple for sulfur-producing burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510735248.7A CN105300543A (en) | 2015-11-03 | 2015-11-03 | Long-life thermocouple for sulfur-producing burner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105300543A true CN105300543A (en) | 2016-02-03 |
Family
ID=55198063
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510735248.7A Pending CN105300543A (en) | 2015-11-03 | 2015-11-03 | Long-life thermocouple for sulfur-producing burner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105300543A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107110711A (en) * | 2014-11-21 | 2017-08-29 | 法雷奥电机控制系统公司 | Temperature sensor |
| CN108593125A (en) * | 2018-03-28 | 2018-09-28 | 新兴能源装备股份有限公司 | A kind of thermocouple protection tube |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0146205A1 (en) * | 1983-10-31 | 1985-06-26 | Richard Arden Falk | Repeating thermocouple |
| CN2565004Y (en) * | 2002-08-02 | 2003-08-06 | 重庆迪洋仪表有限责任公司 | Special thermocouple for coke-oven |
| CN201653573U (en) * | 2010-04-07 | 2010-11-24 | 安徽省众和电仪科技有限公司 | Special high-temperature thermocouple for sulfur recovery tail gas furnace |
| CN201724754U (en) * | 2010-07-26 | 2011-01-26 | 天津市中环温度仪表有限公司 | Special thermoelectric couple for sulfur recovery |
| CN203502131U (en) * | 2013-10-25 | 2014-03-26 | 天津市中环温度仪表有限公司 | Blowing type sulfur recovery special-purpose thermocouple |
| CN205246236U (en) * | 2015-11-03 | 2016-05-18 | 王少勇 | Thermocouple for burning furnace is fired in long -life sulfur production |
-
2015
- 2015-11-03 CN CN201510735248.7A patent/CN105300543A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0146205A1 (en) * | 1983-10-31 | 1985-06-26 | Richard Arden Falk | Repeating thermocouple |
| CN2565004Y (en) * | 2002-08-02 | 2003-08-06 | 重庆迪洋仪表有限责任公司 | Special thermocouple for coke-oven |
| CN201653573U (en) * | 2010-04-07 | 2010-11-24 | 安徽省众和电仪科技有限公司 | Special high-temperature thermocouple for sulfur recovery tail gas furnace |
| CN201724754U (en) * | 2010-07-26 | 2011-01-26 | 天津市中环温度仪表有限公司 | Special thermoelectric couple for sulfur recovery |
| CN203502131U (en) * | 2013-10-25 | 2014-03-26 | 天津市中环温度仪表有限公司 | Blowing type sulfur recovery special-purpose thermocouple |
| CN205246236U (en) * | 2015-11-03 | 2016-05-18 | 王少勇 | Thermocouple for burning furnace is fired in long -life sulfur production |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107110711A (en) * | 2014-11-21 | 2017-08-29 | 法雷奥电机控制系统公司 | Temperature sensor |
| CN108593125A (en) * | 2018-03-28 | 2018-09-28 | 新兴能源装备股份有限公司 | A kind of thermocouple protection tube |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20110116987A1 (en) | Burner holding device comprising a cooling system for a burner arrangement in an entrained flow gasifier | |
| CN105300543A (en) | Long-life thermocouple for sulfur-producing burner | |
| CN102432015A (en) | Uniform temperature type efficient electric heating furnace | |
| CN204522070U (en) | A kind of ceramic core spark arrester | |
| CN205246236U (en) | Thermocouple for burning furnace is fired in long -life sulfur production | |
| CN202216923U (en) | High temperature thermal expansion instrument with sealed core part | |
| CN206803750U (en) | A kind of box atmosphere furnace of use for laboratory | |
| CN203907643U (en) | Sleeve chimney for sulfur recovery unit | |
| CN105441618B (en) | A kind of blast funnace hot blast stove vault local route repair method | |
| CN105541106A (en) | Optical fiber drawing tower provided with optical fiber drawing wire diameter sealing device | |
| CN107543628B (en) | The replaceable thermocouple of on-line operation for sulphur-furnace thermometric | |
| CN101659871B (en) | Method for repairing main gas collecting tube of clean heat recovery coke-oven | |
| CN203454734U (en) | Melting furnace for crucible | |
| CN210774389U (en) | Thermocouple protection device on Claus furnace and temperature measuring device of Claus furnace | |
| CN204881895U (en) | Double screen protection thermocouple | |
| CN104623832A (en) | Ceramic core flame arrester | |
| Keller et al. | Anode baking: the underestimated human aspect | |
| CN205138268U (en) | Controllable temperature is from cooling and protection high temperature U type pipe evaporimeter | |
| CN203757266U (en) | High-temperature-resistant non-metal expansion joint | |
| CN204942650U (en) | A kind of high temperature resistant explosion-proof valve | |
| CN202171513U (en) | High temperature rapid response thermocouple | |
| CN203550533U (en) | Structure for blowing air into rotary kiln | |
| CN214039565U (en) | Lining structure at junction of furnace body module of heating furnace | |
| CN205398457U (en) | Optical fiber wire drawing tower with optical fiber wire drawing line footpath sealing device | |
| CN111992026A (en) | Denitration double-reactor arrangement method and system for realizing online switching |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20211019 Address after: No. 302, Aotou Petrochemical Avenue, Daya Bay, Huizhou, Guangdong 516086 Applicant after: CNOOC HUIZHOU PETROCHEMICAL Co.,Ltd. Address before: 516200 12D, building 7, Jinbi Yayuan, No. 2, Fuyuan Road, Huiyang District, Huizhou City, Guangdong Province Applicant before: Wang Shaoyong |