CN202066820U - Low-temperature acid corrosion testing device for flue gas inside flue - Google Patents
Low-temperature acid corrosion testing device for flue gas inside flue Download PDFInfo
- Publication number
- CN202066820U CN202066820U CN2011200873160U CN201120087316U CN202066820U CN 202066820 U CN202066820 U CN 202066820U CN 2011200873160 U CN2011200873160 U CN 2011200873160U CN 201120087316 U CN201120087316 U CN 201120087316U CN 202066820 U CN202066820 U CN 202066820U
- Authority
- CN
- China
- Prior art keywords
- flue
- metal outer
- metal
- outer pipe
- metal inner
- 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 - Fee Related
Links
Images
Landscapes
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
The utility model discloses a low-temperature acid corrosion testing device for flue gas inside a flue. A metal inner tube is sleeved in a metal outer tube, a sealed end of the metal inner tube is positioned inside the metal outer tube, two ends of the metal outer tube are sealed, a plurality of through holes are arranged on a tube wall at the sealed end of the metal inner tube, a surface-mounted type thermocouple is arranged on an inner wall of the metal outer tube and positioned at the through holes of the metal inner tube, a signal wire of the thermocouple is led out of the metal outer tube, the metal outer tube and the metal inner tube are inserted into the flue together, an exhaust pipe is connected with the metal outer tube and positioned outside the flue, and an adjusting valve is connected with an opening end of the metal inner tube and positioned outside the flue. By the aid of simulation of the temperature of a metal component inside the flue and running conditions at different temperatures, the low-temperature acid corrosion testing device can accurately and practically control the acid dew point temperature of the flue gas in an operating condition and corrosion conditions of the metal component at different temperatures, creates conditions for reasonably lowering the temperature of exhausting the flue gas and effectively improving recycle of waste heat sources of the flue gas, and effectively controls acid corrosion of the metal component inside the flue.
Description
Technical field
The utility model relates to the proving installation of flue gas low-temperature acid corrosion in a kind of flue.
Background technology
When all kinds of boilers or industrial furnace used sulfurous fuel, some can further be oxidized to sulfuric anhydride the sulphuric dioxide that the burning back forms, and combined with water vapour in the flue gas and to form sulfuric acid vapor, and the adiabatic condensation temperature of sulfuric acid vapor is called acid dew point in the flue gas.
When the flue gas of boiler that uses sulfurous fuel or industrial furnace when being lower than acid dew-point temperature, the sulfur trioxide in smoke gas steam generation is condensed, be attached to flue interior hardware and equipment and the flue gas low-temperature acid corrosion takes place, make hardware in the flue, especially corrosion such as metal tube primary heater, cause shorten greatly serviceable life, bring hidden danger for the stable operation of equipment.Because sulfuric anhydride generation and transformation mechanism are very complicated in the flue gas, it is relevant with a plurality of factors such as propellant composition, smoke components, flue-gas temperatures, also can't accurately obtain at present the acid dew-point temperature of flue gas under each operating mode of equipment by Theoretical Calculation, make smog discharge temperature be controlled to and be a difficult problem that the acid corrosion of hardware can't be effectively controlled in the flue.
Summary of the invention
Technical problem to be solved in the utility model provides the proving installation of flue gas low-temperature acid corrosion in a kind of flue, this proving installation is by hardware temperature in the analog flue, can be accurately and grasp under this operating mode the flue gas acid dew point temperature practically and hardware corrosion condition under different temperatures by different temperatures ruuning situation, for rationally reducing smog discharge temperature, effectively improve the fume afterheat energy recovery and create conditions, and effectively control the acid corrosion of hardware in the flue.
For solving the problems of the technologies described above, the proving installation of flue gas low-temperature acid corrosion comprises the metal inner pipe of end sealing in the utility model flue, metal outer pipe, variable valve, SMD thermopair and gas outlet, described metal inner pipe is placed in the described metal outer pipe and blind end is positioned at metal outer pipe, described metal outer pipe closed at both ends, described metal inner pipe blind end tube wall has some through holes, described SMD thermopair is located at described metal outer pipe inwall and is positioned at some through holes of described metal inner pipe, described thermocouple signal line is drawn described metal outer pipe, described metal outer pipe is inserted in the flue together with metal inner pipe, described gas outlet connects described metal outer pipe and is positioned at outside the flue, and described variable valve connects described metal inner pipe openend and is positioned at outside the flue.
For making things convenient for being connected of metal inner pipe and metal outer pipe and metal inner pipe openend and variable valve, this device also comprises ring flange, described metal inner pipe openend and metal outer pipe one end mounting flange, described variable valve connects the openend of described metal inner pipe by described ring flange.
Because the proving installation of flue gas low-temperature acid corrosion has adopted technique scheme in the utility model flue, be that metal inner pipe is placed in the metal outer pipe and blind end is positioned at metal outer pipe, the metal outer pipe closed at both ends, metal inner pipe blind end tube wall has some through holes, SMD thermopair is located at the metal outer pipe inwall and is positioned at some through holes of metal inner pipe, the thermocouple signal line is drawn metal outer pipe, metal outer pipe is inserted in the flue together with metal inner pipe, gas outlet connects metal outer pipe and is positioned at outside the flue, and variable valve connects the metal inner pipe openend and is positioned at outside the flue.This proving installation is by hardware temperature in the analog flue, can be accurately and grasp under this operating mode the flue gas acid dew point temperature practically and hardware corrosion condition under different temperatures by different temperatures ruuning situation, for rationally reducing smog discharge temperature, effectively improve the fume afterheat energy recovery and create conditions, and effectively control the acid corrosion of hardware in the flue.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and embodiments:
Fig. 1 is the structural representation of the proving installation of flue gas low-temperature acid corrosion in the utility model flue.
Embodiment
As shown in Figure 1, the proving installation of flue gas low-temperature acid corrosion comprises the metal inner pipe 2 of end sealing in the utility model flue, metal outer pipe 1, variable valve 5, SMD thermopair 3 and gas outlet 4, described metal inner pipe 2 is placed in the described metal outer pipe 1 and blind end is positioned at metal outer pipe 1, described metal outer pipe 1 closed at both ends, described metal inner pipe 2 blind end tube walls have some through holes 21, described SMD thermopair 3 is located at described metal outer pipe 1 inwall and is positioned at some through holes 21 places of described metal inner pipe 2, the signal wire 31 of described thermopair 3 is drawn described metal outer pipe 1, described metal outer pipe 1 is inserted in the flue 7 together with metal inner pipe 2, described gas outlet 4 connects described metal outer pipe 1 and is positioned at outside the flue 7, and described variable valve 5 connects described metal inner pipe 2 openends and is positioned at outside the flue 7.
For making things convenient for being connected of metal inner pipe and metal outer pipe and metal inner pipe openend and variable valve, this device also comprises ring flange 6, described metal inner pipe 2 openends and metal outer pipe 1 one end mounting flanges 6, described variable valve 5 connect the openend of described metal inner pipe 2 by described ring flange 6.
This apparatus structure is simple, and is with low cost, easy to implement the method, and reliable test result is directly perceived and effect is obvious.When the flue gas low-temperature acid corrosion is tested in carrying out flue, metal outer pipe is together inserted together with metal inner pipe and is made simulation test in the flue, pressurized air enters metal inner pipe and flows into crack between metal inner pipes and the metal outer pipe from the some through holes of metal inner pipe blind end tube wall by variable valve, subsequently to the gas outlet outflow of being located at metal outer pipe, flue gas is heated to metal outer pipe in the flue, the temperature of this metal outer pipe can detect and transfer to thermometer by SMD thermopair, adjust the temperature that compressed-air actuated flow can change metal outer pipe by variable valve, under different design temperatures, work time of a fixed length by the pressurized air control metal outer pipe that adjust to flow into metal inner pipe, take out metal outer pipe subsequently, accurately grasp flue gas acid dew point temperature under this operating mode by Direct observation metal outer pipe surface corrosion situation, and the corrosion condition of metal outer pipe under the different design temperatures.Thereby the temperature of flue gas acid dew point has directive significance to the flue gas temperature controlling in the test different temperatures operating mode lower flue, can effectively avoid the corrosion of flue gas acid dew point to hardware.For rationally reducing smog discharge temperature, effectively improve the fume afterheat energy recovery and create conditions.
Claims (2)
1. the proving installation of flue gas low-temperature acid corrosion in the flue, it is characterized in that: this device comprises the metal inner pipe of end sealing, metal outer pipe, variable valve, SMD thermopair and gas outlet, described metal inner pipe is placed in the described metal outer pipe and blind end is positioned at metal outer pipe, described metal outer pipe closed at both ends, described metal inner pipe blind end tube wall has some through holes, described SMD thermopair is located at described metal outer pipe inwall and is positioned at some through holes of described metal inner pipe, described thermocouple signal line is drawn described metal outer pipe, described metal outer pipe is inserted in the flue together with metal inner pipe, described gas outlet connects described metal outer pipe and is positioned at outside the flue, and described variable valve connects described metal inner pipe openend and is positioned at outside the flue.
2. the proving installation of flue gas low-temperature acid corrosion in the flue according to claim 1, it is characterized in that: this device also comprises ring flange, described metal inner pipe openend and metal outer pipe one end mounting flange, described variable valve connects the openend of described metal inner pipe by described ring flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200873160U CN202066820U (en) | 2011-03-29 | 2011-03-29 | Low-temperature acid corrosion testing device for flue gas inside flue |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200873160U CN202066820U (en) | 2011-03-29 | 2011-03-29 | Low-temperature acid corrosion testing device for flue gas inside flue |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202066820U true CN202066820U (en) | 2011-12-07 |
Family
ID=45060680
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200873160U Expired - Fee Related CN202066820U (en) | 2011-03-29 | 2011-03-29 | Low-temperature acid corrosion testing device for flue gas inside flue |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202066820U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112262297A (en) * | 2018-06-20 | 2021-01-22 | 山特维克材料技术公司 | Pipe section |
| CN113820352A (en) * | 2020-06-18 | 2021-12-21 | 王鹏飞 | Device for detecting magnesium metal evaporation |
-
2011
- 2011-03-29 CN CN2011200873160U patent/CN202066820U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112262297A (en) * | 2018-06-20 | 2021-01-22 | 山特维克材料技术公司 | Pipe section |
| US11143530B2 (en) | 2018-06-20 | 2021-10-12 | Ab Sandvik Materials Technology | Tube portion |
| CN112262297B (en) * | 2018-06-20 | 2022-04-26 | 山特维克材料技术公司 | Pipe section |
| CN113820352A (en) * | 2020-06-18 | 2021-12-21 | 王鹏飞 | Device for detecting magnesium metal evaporation |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| RU2011124588A (en) | METHOD AND INSTALLATION FOR REMOVING METHANE FROM GAS OF LOW CONCENTRATION IN COAL MINES | |
| CN204460275U (en) | A kind of combustion energy saving safety control system | |
| CN204758358U (en) | Directly extract flue gas sampling device of formula CEMS system | |
| CN104456538A (en) | Device and method for retarding high-temperature corrosion on rotational flow opposed combustion boiler water wall | |
| CN202066820U (en) | Low-temperature acid corrosion testing device for flue gas inside flue | |
| CN104122193B (en) | A kind of gas cooler cold end corrosion process and the synchronization on-Line Monitor Device of state | |
| CN104048908B (en) | A kind of heat-transfer equipment experimental apparatus for capability | |
| CN204044041U (en) | The synchronous on-line monitoring mechanism of a kind of gas cooler cold end corrosion process and state | |
| CN104237112A (en) | Test device for testing resistance of material to sulfuric acid dew point corrosion | |
| CN106501015B (en) | A kind of multitubular bundles integrated form radiant tube combustion experimental system and method | |
| CN101245912B (en) | Fuel oil/gas burner test stove | |
| CN202018185U (en) | Combined air furnace system | |
| CN202119278U (en) | Full-automatic rotating timed soot-blowing and scale-blowing energy saver | |
| CN102345997B (en) | Dew point corrosion resistant method for flue gas heat exchanger | |
| CN206257998U (en) | SGH steam heaters | |
| CN205749152U (en) | A kind of pipe fitting croop property is tested with nearly Service Environment analog | |
| CN103007726A (en) | Device for preventing wet desulfurization outlet flue from low-temperature corrosion and control method thereof | |
| CN204346771U (en) | Multifunctional high-temperature flue gas sampling device | |
| CN204006086U (en) | One can be controlled hydrogen manufacturing conversion furnace temperature flexibly, eliminates the air preheater of afterbody corrosion | |
| RU2005138843A (en) | ETCHING INSTALLATION AND METHOD OF CONTINUOUS ETCHING OF METAL TAPE | |
| CN204485652U (en) | A kind of low-temperature denitration reactor | |
| CN204202444U (en) | A kind of parallel heat exchanger | |
| CN209558312U (en) | A kind of blow pipe system of power plant boiler | |
| CN203298634U (en) | Energy-saving waste heat recovery air heater of boiler | |
| CN105841178A (en) | White mist removing heat exchanger used for desulfurization system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: BAOSTEEL INDUSTRIAL FURNACE ENGINEERING TECHNOLOGY Free format text: FORMER OWNER: SHANGHAI BAOSTEEL INDUSTRY TECHNOLOGICAL SERVICE CO., LTD. Effective date: 20130407 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| C56 | Change in the name or address of the patentee |
Owner name: SHANGHAI BAOSTEEL INDUSTRIAL INSPECTION CO., LTD. Free format text: FORMER NAME: SHANGHAI BAOSTEEL INDUSTRY INSPECTION CORP. Owner name: SHANGHAI BAOSTEEL INDUSTRY TECHNOLOGICAL SERVICE C Free format text: FORMER NAME: SHANGHAI BAOSTEEL INDUSTRIAL INSPECTION CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 201900 Shanghai city Baoshan District Meipu Road No. 335 Patentee after: SHANGHAI BAOSTEEL INDUSTRY TECHNOLOGICAL SERVICE Co.,Ltd. Address before: 201900 Shanghai city Baoshan District Meipu Road No. 335 Patentee before: Shanghai Baosteel Industrial Inspection Co.,Ltd. Address after: 201900 Shanghai city Baoshan District Meipu Road No. 335 Patentee after: Shanghai Baosteel Industrial Inspection Co.,Ltd. Address before: 201900 Shanghai city Baoshan District Meipu Road No. 335 Patentee before: Shanghai Baosteel Industry Inspection Corp. |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20130407 Address after: 201900 room 503-C, room 1, building 1508, Mudanjiang Road, Shanghai, Baoshan District, 5 Patentee after: BAOSTEEL INDUSTRIAL FURNACE ENGINEERING TECHNOLOGY Co.,Ltd. Address before: 201900 Shanghai city Baoshan District Meipu Road No. 335 Patentee before: SHANGHAI BAOSTEEL INDUSTRY TECHNOLOGICAL SERVICE Co.,Ltd. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111207 Termination date: 20140329 |