CN101750165B - Blowing thermocouple - Google Patents
Blowing thermocouple Download PDFInfo
- Publication number
- CN101750165B CN101750165B CN2010100396284A CN201010039628A CN101750165B CN 101750165 B CN101750165 B CN 101750165B CN 2010100396284 A CN2010100396284 A CN 2010100396284A CN 201010039628 A CN201010039628 A CN 201010039628A CN 101750165 B CN101750165 B CN 101750165B
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- Prior art keywords
- valve
- pipe
- protection tube
- inner sleeve
- blowing
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- 238000007664 blowing Methods 0.000 title claims abstract description 20
- 238000009434 installation Methods 0.000 claims description 13
- 230000002787 reinforcement Effects 0.000 claims description 12
- 239000000835 fiber Substances 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 7
- 239000003963 antioxidant agent Substances 0.000 claims description 6
- 230000003078 antioxidant effect Effects 0.000 claims description 6
- 235000006708 antioxidants Nutrition 0.000 claims description 6
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 2
- 229910052697 platinum Inorganic materials 0.000 claims description 2
- 239000007789 gas Substances 0.000 abstract description 26
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 12
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 abstract description 8
- 238000011084 recovery Methods 0.000 abstract description 7
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 6
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 abstract description 5
- 229910000037 hydrogen sulfide Inorganic materials 0.000 abstract description 5
- 229910052717 sulfur Inorganic materials 0.000 abstract description 5
- 239000011593 sulfur Substances 0.000 abstract description 5
- 230000001681 protective effect Effects 0.000 abstract 4
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 abstract 2
- 231100000331 toxic Toxicity 0.000 abstract 1
- 230000002588 toxic effect Effects 0.000 abstract 1
- 230000036228 toxication Effects 0.000 abstract 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 231100001261 hazardous Toxicity 0.000 description 4
- 239000005864 Sulphur Substances 0.000 description 3
- 229910052593 corundum Inorganic materials 0.000 description 3
- 239000010431 corundum Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 206010020843 Hyperthermia Diseases 0.000 description 1
- 101100293261 Mus musculus Naa15 gene Proteins 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000036031 hyperthermia Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000002574 poison Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 231100000572 poisoning Toxicity 0.000 description 1
- 230000000607 poisoning effect Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
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- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
The invention relates to a blowing thermocouple suitable for a sulfur recovery device and the like, comprising a junction box, an upper protective pipe, a flange, an outer sleeve pipe, an inner sleeve pipe and an thermocouple wire. The protective pipe is connected with a blowing device; and an air guide pipe of the blowing device is arranged in the upper protective pipe and penetrates through the lower end part of the inner sleeve pipe through the protective pipe. In the invention, nitrogen or air is blown into the inner sleeve pipe at the flow rate of 1 liter/minute through the blowing device, circularly flows in the inner sleeve pipe and then is exhausted and recovered through an air outlet (opening) or is directly exhausted to a hearth to take away harmful gases leaked due to high temperature in the inner sleeve pipe, thereby protecting the thermocouple wire, prolonging the service life of the thermocouple wire and preventing safety accidents of personnel toxication and the like caused by the leakage of a large quantity of the toxic and harmful gases, such as hydrogen sulfide, sulfur dioxide, and the like.
Description
Technical field
The present invention relates to a kind of thermopair, relate in particular to a kind of thermopair, be applicable to devices such as sulphur recovery with blowning installation.
Background technology
1100 ℃～1300 ℃ of the burner hearth Nei Wenduda of sulfur recovery facility (it is different with technology to press device, and temperature is also slightly different), and corrosive gas media such as sulfuretted hydrogen, sulphur, sulphuric dioxide are arranged in the burner hearth.Because the characteristics of sulfur recovery facility working environment, when traditional thermocouple thermometer uses in this device, have following situation: 1, the thermopair internal and external casing can expand to some extent under the high temperature, and tube wall swells under high temperature, can produce small pore, the corrosive gas medium can be penetrated into thermopair inner sleeve inwall, makes thermocouple wire pollute, turn black, corrode, and reduces plasticity, can make temperature drift, cause the fracture of thermocouple wire at last, serviceable life is short, and general serviceable life was less than 3 months; 2, owing to have the corrosive gas medium under the high temperature, the common metal internal and external casing is corroded very soon, so select the corundum sleeve pipe, this kind material corrosion-and high-temp-resistant, but it is cold alternately or casing failure easily takes place under the situation of improper use in heat, and the hazardous medium in the device is leaked to outside the equipment along the inner sleeve endoporus, sulfuretted hydrogen, sulphuric dioxide etc. all are hypertoxic harmful gases, a large amount of leakages can generation personnel poisoning etc. security incident, and the inner sleeve of fracture is directly fallen in the burner hearth, also can influence the normal operation of device.Therefore thermocouple temperature sensor is to realize the normal use of sulfur recovery facility and the critical component whether sulphur recovery reaches technological requirement.
Summary of the invention
Technical matters to be solved by this invention provides the thermopair with blowning installation, to overcome the defective that the thermopair that uses in the existing sulfur recovery facility exists.
Technical scheme of the present invention is: a kind of blowing thermocouple; comprise terminal box, go up protection tube, flange, outer tube, inner sleeve, thermocouple wire; the described protection tube of going up connects a blowning installation; the wireway of described blowning installation places in the protection tube, and penetrates the inner sleeve bottom by last protection tube.Harmful gas such as sulfuretted hydrogen, sulphuric dioxide can be discharged by the venthole that is located at the protection tube place and be reclaimed; also can directly arrange in burner hearth by the gas outlet that is located at the flange place; can also passing through down, the protection tube internal pressure can't enter in the protection tube hazardous medium in the burner hearth greater than pressure in the burner hearth.
The invention has the beneficial effects as follows: nitrogen or air are blown in the inner sleeve by the flow of blowning installation with 1 liter/minute; gas circulates to discharge by venthole (mouth) in inner sleeve again and reclaims; perhaps directly arrange to burner hearth; the harmful gas of seepage to take away inner sleeve internal cause high temperature; thereby protection thermocouple wire; prolong the serviceable life of thermocouple wire, and prevent security incidents such as a large amount of leakages of hypertoxic harmful gases such as sulfuretted hydrogen, sulphuric dioxide cause that personnel poison.
Below in conjunction with the drawings and the specific embodiments invention is described further.
Description of drawings
Fig. 1 is the one-piece construction synoptic diagram of first embodiment of blowing thermocouple of the present invention;
Fig. 2 is the partial structurtes synoptic diagram of second embodiment of blowing thermocouple of the present invention;
Fig. 3 is the partial structurtes synoptic diagram of the 3rd embodiment of blowing thermocouple of the present invention;
Fig. 4 is the anti-interior neglected loading interposed structure enlarged diagram of Figure 1A portion.
Embodiment
First embodiment as shown in Figure 1, comprise terminal box 1, go up protection tube 3, flange 6, outer tube 8, inner sleeve 9, thermocouple wire 11, last protection tube 3 connects a blowning installation, the wireway 13 of described blowning installation places in the protection tube 3, and penetrates the bottom of inner sleeve 9 by last protection tube; Wireway 13 is the platinum pipe, and outer tube 8 and inner sleeve 9 are alundum tube; Be with reinforcement pipe 7 outside the outer tube 8, last protection tube 3 is connected by taper pipe thread loose joint 5 with reinforcement pipe 7 and seals, and is provided with high temperature resistant, anti-oxidant, erosion-resisting Fibre Bag 12 between outer tube 8 and the reinforcement pipe 7; Wireway 13, outer tube 8, inner sleeve 9, reinforcement pipe 7 and Fibre Bag 12 are high temperature resistant, anti-oxidant, anticorrosive material.Outer tube 8 overcoat Fibre Bags 12 can reduce the radiation of temperature, avoid the explosion under localized hyperthermia of corundum sleeve pipe; and just in case sleeve pipe produces crack or fracture; because the protection of outer fiber bag is unlikely the corundum sleeve pipe is fallen in the stove, can guarantee not pollute stove, can prolong sleeve pipe serviceable life again.The present embodiment blowning installation; comprise source of the gas hand valve 19, reduction valve 18, flowmeter 17, the first retaining valve 15A and be arranged on venthole 4 in the protection tube 3; source of the gas hand valve 19, reduction valve 18, flowmeter 17 and the first retaining valve 15A connect the back successively by connecting pipe 16 and are connected with last protection tube 3 usefulness interface screw (taper pipe thread) 14A; the endpiece of the first retaining valve 15A is connected with wireway 13, last protection tube 3 and wireway 13 welding.Open source of the gas hand valve 19, nitrogen or air are discharged by the venthole in the last protection tube 4 by reduction valve 18, flowmeter 17, the first retaining valve 15A, the wireway 13 flux and flow direction inner sleeve 9 endoporus tops with 1 liter/minute again.Present embodiment; last protection tube 3 and terminal box 1 place are provided with anti-interior neglected loading and put 2; to prevent that protection tube fracture harmful gas medium from leaking into outside the equipment by last protection tube endoporus in a large number; as shown in Figure 4; anti-interior neglected loading is put 2 and is comprised forcing screw 2.1; briquetting 2.2; magnesium powder sealing block 2.3 and collets 2.4; magnesium powder sealing block 2.4 and collets 2.4 are equipped with two holes that separate (not marking among the figure); thermocouple wire 11 passes magnesium powder sealing block 2.3 and collets 2.4 by described hole; tighten by forcing screw 2.1 and to press down briquetting 2.2; make briquetting extruding magnesium powder sealing block 2.3 make it distortion, reach sealing effectiveness.
Second embodiment as shown in Figure 2, present embodiment adopts the blowning installation with first embodiment different structure, this blowning installation comprises source of the gas hand valve 19, reduction valve 18, flowmeter 17, the first retaining valve 15A, the second retaining valve 15B, three-way connection 23, the first needle valve 21A, the second needle valve 21B and is arranged on gas outlet 25 on the flange that gas outlet 25 is positioned at the outside of outer tube 8; Source of the gas hand valve 19; reduction valve 18; the flowmeter 17 and the first retaining valve 15A are connected successively by connecting pipe 16A; the endpiece of the first retaining valve 15A is connected with first port of three-way connection 23; three-way connection 23 second ports are by joint 22A; connecting pipe 16C; active card bell and spigot joint 20A is connected with the first needle valve 21A; the another port of the first needle valve 21A is by active card bell and spigot joint 20B; connecting pipe 16B and interface screw 14B are connected with wireway 13 in the last protection tube 3; three-way connection 23 the 3rd port is connected with the second needle valve 21B, one port by two-way joint 24, and the second needle valve 21B other end port is through joint 22B; connecting pipe 16D is connected with gas outlet 25 in the flange through connecting pipe 16E and active card bell and spigot joint 20C by the second retaining valve 15B.Open source of the gas hand valve 19; nitrogen or air are by three-way connection 23; divide respectively and flow to the first needle valve 21A and the second needle valve 21B; when the pressure in last protection tube and the outer tube (also claiming protection tube down) during greater than furnace pressure; hazardous medium in the burner hearth just can't enter in the protection tube; nitrogen or air just begin to flow to flange gas outlet 25, flow in the burner hearth.Close source of the gas hand valve 19; air blowing stops; the protection tube internal pressure is greater than furnace pressure up and down; gas in the protection tube can be along with interface screw 14B, three-way connection 23, retaining valve 15B up and down; flow to flange gas outlet 25; the same up to last protection tube internal pressure with pressure in the burner hearth, because be provided with retaining valve 15B, so the situation that can occur flowing backwards not.The difference of present embodiment and first embodiment is that the gas outlet is located on the flange, does not have venthole on the last protection tube.
The 3rd embodiment as shown in Figure 3; the difference of present embodiment and first embodiment is that protection tube do not establish bleeder vent; purging nitrogen or air pass through down, and the protection tube internal pressure gets final product greater than pressure in the burner hearth; hazardous medium in the burner hearth just can't enter in the protection tube, thereby need not to circulate the effect that also can reach protection electric heating thermo wires.
Claims (9)
1. blowing thermocouple, comprise terminal box (1), last protection tube (3), flange (6), outer tube (8), inner sleeve (9), thermocouple wire (11), it is characterized in that: the described protection tube (3) of going up connects a blowning installation, the wireway of described blowning installation (13) places in the protection tube (3), and penetrate the bottom of inner sleeve (9) by last protection tube, described blowning installation comprises source of the gas hand valve (19), reduction valve (18), flowmeter (17), first retaining valve (15A), second retaining valve (15B), three-way connection (23), first needle valve (21A), second needle valve (21B) and be arranged on gas outlet (25) on the flange (6), gas outlet (25) are positioned at the outside of outer tube (8); Described source of the gas hand valve (19); reduction valve (18); flowmeter (17); first retaining valve (15A) connects successively; the endpiece of first retaining valve (15A) is connected with first port of three-way connection (23); second port of three-way connection (23) is connected with second needle valve (21B) port with first needle valve (21A) respectively with the 3rd port; the another port of first needle valve (21A) is connected with the described wireway of going up in the protection tube (3) (13), and second needle valve (21B) another port is connected by the interior gas outlet (25) of second retaining valve (15B) and flange (6).
2. blowing thermocouple according to claim 1; it is characterized in that: the junction of described terminal box (1) and last protection tube (3) is provided with anti-interior neglected loading and puts; described anti-interior neglected loading is put and is comprised forcing screw (2.1), briquetting (2.2), sealing block (2.3) and collets (2.4), and thermocouple wire (11) passes sealing block (2.3) and collets (2.4).
3. blowing thermocouple according to claim 1 and 2 is characterized in that: described wireway (13) is the platinum pipe, and described outer tube (8) and inner sleeve (9) are alundum tube.
4. blowing thermocouple according to claim 1 and 2 is characterized in that: described outer tube (8) is outer to be with reinforcement pipe (7), and last protection tube (3) is connected by taper pipe thread loose joint (5) with reinforcement pipe (7) and seals.
5. blowing thermocouple according to claim 3 is characterized in that: described outer tube (8) is outer to be with reinforcement pipe (7), and last protection tube (3) is connected by taper pipe thread loose joint (5) with reinforcement pipe (7) and seals.
6. blowing thermocouple according to claim 1 and 2 is characterized in that: also be provided with high temperature resistant, anti-oxidant, erosion-resisting Fibre Bag (12) between described outer tube (8) and the reinforcement pipe (7).
7. blowing thermocouple according to claim 3 is characterized in that: also be provided with high temperature resistant, anti-oxidant, erosion-resisting Fibre Bag (12) between described outer tube (8) and the reinforcement pipe (7).
8. blowing thermocouple according to claim 4 is characterized in that: also be provided with high temperature resistant, anti-oxidant, erosion-resisting Fibre Bag (12) between described outer tube (8) and the reinforcement pipe (7).
9. blowing thermocouple according to claim 5 is characterized in that: also be provided with high temperature resistant, anti-oxidant, erosion-resisting Fibre Bag (12) between described outer tube (8) and the reinforcement pipe (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010100396284A CN101750165B (en) | 2010-01-08 | 2010-01-08 | Blowing thermocouple |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010100396284A CN101750165B (en) | 2010-01-08 | 2010-01-08 | Blowing thermocouple |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101750165A CN101750165A (en) | 2010-06-23 |
| CN101750165B true CN101750165B (en) | 2011-05-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010100396284A Active CN101750165B (en) | 2010-01-08 | 2010-01-08 | Blowing thermocouple |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101750165B (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102012274B (en) * | 2010-09-21 | 2011-12-28 | 浙江伦特机电有限公司 | Large-volume coke oven coking chamber temperature sensor |
| CN102998018A (en) * | 2012-11-28 | 2013-03-27 | 安徽埃克森科技集团有限公司 | Absorbing thermocouple |
| CN103017925A (en) * | 2012-11-28 | 2013-04-03 | 安徽埃克森科技集团有限公司 | Intelligent pressure testing type thermoelectric couple |
| CN102980675A (en) * | 2012-11-28 | 2013-03-20 | 安徽埃克森科技集团有限公司 | Suction thermocouple |
| CN102980674A (en) * | 2012-11-28 | 2013-03-20 | 安徽埃克森科技集团有限公司 | Intelligent protection method of thermocouple |
| CN102998019A (en) * | 2012-11-28 | 2013-03-27 | 安徽埃克森科技集团有限公司 | Mixed gas suction type thermocouple |
| CN103868615A (en) * | 2012-12-11 | 2014-06-18 | 天津市中环温度仪表有限公司 | Air blowing type anticorrosion thermocouple |
| CN103033281B (en) * | 2012-12-24 | 2015-01-21 | 重庆材料研究院 | Platinum resistance temperature sensor with high intensity and fast response |
| CN103278255B (en) * | 2013-05-21 | 2016-03-02 | 天津市中环温度仪表有限公司 | Measure the corrosion resistance thermocouple of flue gas |
| CN104198069A (en) * | 2014-08-26 | 2014-12-10 | 安徽蓝德仪表有限公司 | Thermocouple for air compressor |
-
2010
- 2010-01-08 CN CN2010100396284A patent/CN101750165B/en active Active
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| Publication number | Publication date |
|---|---|
| CN101750165A (en) | 2010-06-23 |
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Denomination of invention: Blowing thermocouple Effective date of registration: 20231103 Granted publication date: 20110511 Pledgee: China Co. truction Bank Corp Yueqing branch Pledgor: ZHEJIANG LUNTE ELECTROMECHANICAL CO.,LTD. Registration number: Y2023330002516 |
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