CN201653573U - Special high-temperature thermocouple for sulfur recovery tail gas furnace - Google Patents
Special high-temperature thermocouple for sulfur recovery tail gas furnace Download PDFInfo
- Publication number
- CN201653573U CN201653573U CN2010201552730U CN201020155273U CN201653573U CN 201653573 U CN201653573 U CN 201653573U CN 2010201552730 U CN2010201552730 U CN 2010201552730U CN 201020155273 U CN201020155273 U CN 201020155273U CN 201653573 U CN201653573 U CN 201653573U
- Authority
- CN
- China
- Prior art keywords
- pipe
- tail gas
- thermocouple
- recovery tail
- terminal box
- 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.)
- Expired - Lifetime
Links
Images
Landscapes
- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
The utility model discloses a special high-temperature thermocouple for a sulfur recovery tail gas furnace, which comprises a wire connecting box with an electric interface. A pipe orifice communicated with the inner part of the wire connecting box is arranged on the side wall in the wire connecting box, a locking nut is screwed on the pipe orifice, and an armored thermocouple is penetrated out of the wire connecting box from the pipe orifice; a corundum pipe, a silicon carbide pipe and a reinforcing pipe are sequentially sheathed from inside to outside at the outer part of the armored thermocouple penetrating out of the wire connecting box; the armored thermocouple which adopts the non-shell-connecting type is not in contact with the corundum pipe, and a nitrogen inlet and a nitrogen outlet for nitrogen to come in/out and communicated with the inner part of the reinforcing pipe are arranged on the reinforcing pipe. The high-temperature enduring characteristic of the special high-temperature thermocouple is more prominent, and the service life is longer, so that the efficiency of the sulfur recovery tail gas furnace is increased and the special high-temperature thermocouple has great significance in environmental protection.
Description
Technical field
The utility model relates to area of thermocouples, is specially sulphur recovery tail gas stove special-purpose high temperature thermopair.
Background technology
Thermopair is the detecting element in the automation process control system, is a kind of Automation Control Instruments.Thermopair background principle is " seat Bake effect (Seebeck effect) ", be called thermoelectric effect again, its phenomenon is when two kinds of heterogeneity metal endpoints are connected to form a closed loop, if between two-end-point temperature difference is arranged, then having electric current between the loop produces, the higher contact of temperature is called " hot junction (hot junction) " in the loop, and this point is placed in the thermometric place usually; Temperature is called cold junction than low side, i.e. the output terminal of thermopair, and its output signal is a direct current voltage, sees through the special parallel operation of A/D and converts digital signal to, and see through the software calculation, is transformed into actual temperature value.In industries such as petrochemical complex, metallurgy, electric power, quite big to the demand of thermopair.At present, the special thermopair used of domestic specific position is mainly by import.The special thermopair of import is except costing an arm and a leg, and delivery cycle long outside, measuring accuracy and life cycle all are not enough to satisfy the needs of home market.
Some sulfide that produce in petroleum refining process have very big influence for environment, and the sulphur that reclaims can utilize again, and this structural adjustment, optimization production and environmental protection to oil refining is significant.Sulfur recovery facility partly adopts the one-level pyroreaction at system sulphur, and the partial combustion process of two-stage catalyzed conversion is with sulfur recovery.This wherein maximum operating temperature be 1450 ℃, process gas is H
2S, SO
2, normal running temperature scope: 1350 ℃ of stokeholds, behind the stove 1300 ℃.If use general thermopair, its serviceable life is very short.
The utility model content
The purpose of this utility model provides a kind of sulphur recovery tail gas stove special-purpose high temperature thermopair, to solve the problem that traditional hot galvanic couple serviceable life and precision can't satisfy sulphur recovery tail gas stove needs.
In order to achieve the above object, the technical scheme that the utility model adopted is:
Sulphur recovery tail gas stove special-purpose high temperature thermopair, comprise the terminal box that has electric interfaces, there is armoured thermocouple from terminal box, to pass, it is characterized in that: the armoured thermocouple outside that passes terminal box is with alundum tube, carborundum tube and reinforced pipe successively, described armoured thermocouple does not contact with alundum tube, is non-body contact formula; Have on the carborundum tube with carborundum tube and alundum tube between the space nitrogen inlet and the nitrogen outlet that are communicated with, reinforced pipe is provided with nitrogen interface and is communicated with separately with described nitrogen inlet, nitrogen outlet respectively.
Described sulphur recovery tail gas stove special-purpose high temperature thermopair, it is characterized in that: described reinforced pipe is with ring flange outward.
Described sulphur recovery tail gas stove special-purpose high temperature thermopair, it is characterized in that: described reinforced pipe is made for the GH3030 alloy by model.
Described sulphur recovery tail gas stove special-purpose high temperature thermopair is characterized in that: described armoured thermocouple comprises thermocouple wire, is enclosed within the protection tube of thermocouple wire outside, the insulation course between thermocouple wire and protection tube.
Described sulphur recovery tail gas stove special-purpose high temperature thermopair, it is characterized in that: described terminal box sidewall is provided with the mouth of pipe with the terminal box internal communication, and armoured thermocouple passes from terminal box by the mouth of pipe, has screwed togather set nut on the mouth of pipe.
What the utility model thermopair adopted is armouring type temperature-sensing element, and what process connected employing is that flange connects.We have selected high-temperature alloy GH3030 on the material.For the resistant to elevated temperatures problem of real solution, except using than the more resistant to elevated temperatures GH3030 of general steel, also added two-layer special high-temperature resistant tube inside in addition as the reinforced pipe, be respectively alundum tube and carborundum tube.And structurally have the nitrogen gateway that is communicated with outside nitrogen conversion equipment, so that use the nitrogen conversion.
The utility model advantage is:
Selecting for use GH3030 (GH30) as the reinforced pipe material, is because of it has good inoxidizability, thermal fatigue and good welding technological properties, and alloy structure is stable, and the timeliness tendency is little.And corundum has that hardness height, toughness are low slightly, purity is high, white sharp property is excellent, grindability is strong, thermal value is little, efficient is high, the characteristics of acid-alkali-corrosive-resisting, high temperature resistant, Heat stability is good etc.Silit has characteristics such as high rigidity, high-wearing feature, highly corrosion resistant and higher high temperature strength.The nitrogen gateway is communicated with outside nitrogen conversion equipment, has prolonged the life cycle that thermopair increases by feeding nitrogen, and is more energy-conservation.Make the resistant to elevated temperatures characteristics of this thermopair more outstanding like this, more extend serviceable life.Thereby the efficient of device is improved, and environmental protection is significant.
Description of drawings
Fig. 1 is the utility model structural representation.
Embodiment
Sulphur recovery tail gas stove special-purpose high temperature thermopair; comprise the terminal box 1 that has electric interfaces; sidewall is provided with the mouth of pipe 2 with the terminal box internal communication in the terminal box 1; screwed togather set nut on the mouth of pipe 2; have armoured thermocouple 3 to pass from terminal box 1 by the mouth of pipe 2, armoured thermocouple 3 comprises thermocouple wire, is enclosed within the protection tube of thermocouple wire outside, the insulation course between thermocouple wire and protection tube.The outside that passes terminal box 1 part at armoured thermocouple 3 is with alundum tube 4, carborundum tube 5 and reinforced pipe 6 from inside to outside successively, is with ring flange 7 outside the reinforced pipe 6, and reinforced pipe 6 is made for the GH3030 alloy by model.Armoured thermocouple 3 does not contact with alundum tube 4 and is non-body contact formula; Have on the carborundum tube with carborundum tube and alundum tube between the space nitrogen inlet and the nitrogen outlet that are communicated with, reinforced pipe 6 is provided with nitrogen interface 8 and nitrogen interface 9, nitrogen interface 8 and nitrogen interface 9 are communicated with separately with the nitrogen gateway respectively.
Claims (5)
1. sulphur recovery tail gas stove special-purpose high temperature thermopair, comprise the terminal box that has electric interfaces, there is armoured thermocouple from terminal box, to pass, it is characterized in that: the armoured thermocouple outside that passes terminal box is with alundum tube, carborundum tube and reinforced pipe successively, described armoured thermocouple does not contact with alundum tube, is non-body contact formula; Have on the carborundum tube with carborundum tube and alundum tube between the space nitrogen inlet and the nitrogen outlet that are communicated with, reinforced pipe is provided with nitrogen interface and is communicated with separately with described nitrogen inlet, nitrogen outlet respectively.
2. sulphur recovery tail gas stove special-purpose high temperature thermopair according to claim 1, it is characterized in that: described reinforced pipe is with ring flange outward.
3. sulphur recovery tail gas stove special-purpose high temperature thermopair according to claim 1, it is characterized in that: described reinforced pipe is made for the GH3030 alloy by model.
4. sulphur recovery tail gas stove special-purpose high temperature thermopair according to claim 1 is characterized in that: described armoured thermocouple comprises thermocouple wire, is enclosed within the protection tube of thermocouple wire outside, the insulation course between thermocouple wire and protection tube.
5. sulphur recovery tail gas stove special-purpose high temperature thermopair according to claim 1, it is characterized in that: described terminal box sidewall is provided with the mouth of pipe with the terminal box internal communication, armoured thermocouple passes from terminal box by the mouth of pipe, has screwed togather set nut on the mouth of pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201552730U CN201653573U (en) | 2010-04-07 | 2010-04-07 | Special high-temperature thermocouple for sulfur recovery tail gas furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201552730U CN201653573U (en) | 2010-04-07 | 2010-04-07 | Special high-temperature thermocouple for sulfur recovery tail gas furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201653573U true CN201653573U (en) | 2010-11-24 |
Family
ID=43118815
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201552730U Expired - Lifetime CN201653573U (en) | 2010-04-07 | 2010-04-07 | Special high-temperature thermocouple for sulfur recovery tail gas furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201653573U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN103993939A (en) * | 2014-06-06 | 2014-08-20 | 中国地质大学（武汉） | Integrated device for automotive exhaust purification treatment and waste heat power generation |
| CN105300543A (en) * | 2015-11-03 | 2016-02-03 | 王少勇 | Long-life thermocouple for sulfur-producing burner |
-
2010
- 2010-04-07 CN CN2010201552730U patent/CN201653573U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN103993939A (en) * | 2014-06-06 | 2014-08-20 | 中国地质大学（武汉） | Integrated device for automotive exhaust purification treatment and waste heat power generation |
| CN105300543A (en) * | 2015-11-03 | 2016-02-03 | 王少勇 | Long-life thermocouple for sulfur-producing burner |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201653573U (en) | Special high-temperature thermocouple for sulfur recovery tail gas furnace | |
| CN207487842U (en) | A kind of sulfur corrosion resistant leakproof sheathed thermal couple thermal resistance | |
| CN2916602Y (en) | External wall temperature measuring point structure for boiler super-heater/reheater with reduced measuring error | |
| CN201025622Y (en) | A nickel base armoured thermocouple | |
| CN202153160U (en) | High temperature wear resistant thermocouple specially used for circulating fluidized bed | |
| CN201377787Y (en) | High-temperature resistant and wear resistant ceramic cyclone separator of CFBB | |
| CN201653576U (en) | Wear-resistant thermoelectric couple of catalytic cracking riser tube | |
| CN201288213Y (en) | Titanium sponge distillation passage-way and heating apparatus | |
| CN208733015U (en) | A kind of coke oven coke oven uprising tube raw coke oven gas waste-heat recovery device | |
| CN201653575U (en) | Dedicated thermocouple for furnace bottom | |
| CN203807170U (en) | Device for preparing manganese nitride by performing microwave heating on MnO2 | |
| CN201083550Y (en) | Anti-knock abrasion-proof electric thermo-couple | |
| CN202362088U (en) | Dedicated high temperature wear resistant thermocouple for cement mining industry | |
| CN202033120U (en) | Novel special thermocouple for pipeline of hot air furnace | |
| CN208432089U (en) | A kind of small-sized rotary kiln | |
| CN202455553U (en) | Graphite heating body of high-temperature vacuum resistance furnace | |
| CN203489979U (en) | Hot mounting sleeve pipe for thermocouple, thermal resistor, or bimetal thermometer | |
| CN205383787U (en) | Wet -type heat carrier heater's furnace roof part | |
| CN202710197U (en) | Thermocouple having good heat dissipation performance | |
| CN106092357A (en) | A kind of Multi-section temperature-measuring thermocouple | |
| CN205228664U (en) | A direct temperature measuring device for powder coal gasification stove | |
| CN103836649A (en) | Heating stove capable of conducting auxiliary heating on water heater | |
| CN201293751Y (en) | Iron ore reducibility measuring device | |
| CN205879388U (en) | Multistage temperature thermocouple | |
| CN206862505U (en) | The Telescopic thermocouple of hydrogen production from coal gasification device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101124 |
|
| CX01 | Expiry of patent term |