CN2533462Y - Flue gas sampling heatiung pipe - Google Patents
Flue gas sampling heatiung pipe Download PDFInfo
- Publication number
- CN2533462Y CN2533462Y CN 02218831 CN02218831U CN2533462Y CN 2533462 Y CN2533462 Y CN 2533462Y CN 02218831 CN02218831 CN 02218831 CN 02218831 U CN02218831 U CN 02218831U CN 2533462 Y CN2533462 Y CN 2533462Y
- Authority
- CN
- China
- Prior art keywords
- pipe
- flue gas
- mica tape
- flue
- utility
- 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
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Abstract
The utility model discloses a sampling and heating pipe of flue gas, comprising a flue gas pipe which is an inner pipe (1) in particular; wherein, the inner pipe (1) is successively packed with an inner layer of mica tape (4), resistance wire (3), an outer layer of mica tape (5), silicate cotton (6), and an outer casing pipe (7); a temperature sensor (2) is arranged between the inner pipe (1) and the inner layer of mica tape (4) and is electrically connected with the resistance wire (3) and a temperature controller; the two ends of the outer casing pipe (7) is closely connected with the inner pipe (1), with the two ends being provided with inner screw threads and outer screw threads. The utility model has the advantages of small volume, high heat exchanging efficiency, and low energy consumption; besides, the temperature of the smoke in the inner pipe is the same as that in the flue, which guarantees the subsequent detection precision. The utility model can be assembled into a required length conveniently by being connected in series and is easily connected with the measuring instrument, and can be widely used to make on line monitoring of flue gas.
Description
Technical field
The utility model relates to a kind of flue gas sampling heating tube.
Background technology
Real time on-line monitoring is carried out in the smoke pollution that chimney is discharged, significant to the protection environment.The real-time online analytical equipment of dusty gas has higher requirement to working environment, can only must flue gas be drawn from flue with pipeline and be sent to analysis room's Measurement and analysis in office work usually.Adopt conventional method to transmit, because flue-gas temperature is about 200 ℃, and pipe temperature is relatively low, causes the condensate moisture in the flue gas easily, and the dusty gas component portion is soluble in water, cause smoke components to change, and coagulate the moisture that and understand corrosion pipeline, moist tube wall also adsorbs flue dust easily, results in blockage in the course of time, along with the prolongation of pipeline, the problems referred to above are more serious.Adopt heating technique can keep the cleaning, unimpeded of pipeline, if but the temperature of heating is too high, also can cause the change of smoke components, have only temperature maintenance with the whole pipe inwall identical with temperature in the flue, and just can reach optimum efficiency.
Summary of the invention
The technical problems to be solved in the utility model provides a kind of flue gas sampling heating tube for overcoming weak point of the prior art, and it can realize the long apart from transmit undistortedly of flue gas of sampling.
The technical scheme that is adopted comprises flue, and particularly flue is interior pipe, outer internal layer mica tape, resistance wire, outer mica tape, silicic acid cotton and the outer tube of being coated with successively of said interior pipe.Be equipped with temperature sensor between pipe and internal layer mica tape in described; Described temperature sensor, resistance wire are electrically connected with temperature controller; The both ends of the surface of described outer tube and the sealing-in mutually of interior pipe; The two ends of pipe are equipped with interior or external thread in described.
With respect to prior art, because flue is interior pipe, and heating element coats interior pipe again, so volume is very little, thermal conversion efficiency is also higher, adds the insulation and the supporting role of silicic acid cotton and outer tube, makes it reduce energy consumption; Again since adopted temperature sensor and with the temperature controller of its adapted, in this just makes in the pipe temperature of flue gas equate with the temperature of flue gas in the flue, for follow-up accuracy of detection provides assurance; Again because the interior or external thread at interior pipe two ends make it can be connected in series the heating tube that is assembled into Len req easily, and the surveying instrument that very easily is connected with surveying instrument, and then is convenient to is momentarily monitored in real time to the blowdown of chimney.
Description of drawings
Fig. 1 is a kind of basic structure synoptic diagram of the present utility model.
Embodiment
Below in conjunction with accompanying drawing optimal way of the present utility model is described in further detail.
Referring to Fig. 1, the two ends of interior pipe 1 are equipped with internal and external threads for connection respectively.Be wound with internal layer mica tape 4, nickel-chrome resistance wire 3 and outer mica tape 5 on the outside surface of the interior pipe 1 except that said internal and external threads successively, after silicic acid cotton 6 coats outer mica tape 5, by outer tube 7 it all overlapped envelope again.Internal layer mica tape 4 and 1 of interior pipe at interior pipe 1 one ends are equipped with temperature sensor 2, and this temperature sensor 2 and nickel-chrome resistance wire 3 are electrically connected with temperature controller 8 together.
During use, be serially connected with it before surveying instrument and energized get final product (part out of doors of outer tube 7 preferably coat polyurethane expanded material or other heat-barrier material with carry out heat insulation with protect).
Claims (5)
1, a kind of flue gas sampling heating tube, comprise flue, it is characterized in that: flue is interior pipe (1), outer internal layer mica tape (4), resistance wire (3), outer mica tape (5), silicic acid cotton (6) and the outer tube (7) of being coated with successively of said interior pipe (1).
2, heating tube according to claim 1 is characterized in that being equipped with temperature sensor (2) between interior pipe (1) and internal layer mica tape (4).
3, heating tube according to claim 2 is characterized in that temperature sensor (2), resistance wire (3) are electrically connected with temperature controller (8).
4, heating tube according to claim 1 is characterized in that the both ends of the surface and interior pipe (1) sealing-in mutually of outer tube (7).
5, heating tube according to claim 1 is characterized in that the two ends of interior pipe (1) are equipped with interior or external thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02218831 CN2533462Y (en) | 2002-02-05 | 2002-02-05 | Flue gas sampling heatiung pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02218831 CN2533462Y (en) | 2002-02-05 | 2002-02-05 | Flue gas sampling heatiung pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2533462Y true CN2533462Y (en) | 2003-01-29 |
Family
ID=33697419
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02218831 Expired - Fee Related CN2533462Y (en) | 2002-02-05 | 2002-02-05 | Flue gas sampling heatiung pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2533462Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103105318A (en) * | 2011-11-11 | 2013-05-15 | 华东电力试验研究院有限公司 | Flue gas sampling device |
| CN104764630A (en) * | 2015-03-30 | 2015-07-08 | 江阴市辉龙电热电器有限公司 | High-temperature flue gas sampling line with constant-power heating and tracing functions |
| CN104849105A (en) * | 2015-03-30 | 2015-08-19 | 江阴市辉龙电热电器有限公司 | High-temperature flue gas sampling line having heating and heat-tracing functions |
-
2002
- 2002-02-05 CN CN 02218831 patent/CN2533462Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103105318A (en) * | 2011-11-11 | 2013-05-15 | 华东电力试验研究院有限公司 | Flue gas sampling device |
| CN104764630A (en) * | 2015-03-30 | 2015-07-08 | 江阴市辉龙电热电器有限公司 | High-temperature flue gas sampling line with constant-power heating and tracing functions |
| CN104849105A (en) * | 2015-03-30 | 2015-08-19 | 江阴市辉龙电热电器有限公司 | High-temperature flue gas sampling line having heating and heat-tracing functions |
| CN104764630B (en) * | 2015-03-30 | 2017-08-25 | 江阴市辉龙电热电器有限公司 | The high-temperature flue gas sampling line of heat tracing function is heated with invariable power |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |