CN204202950U - Stack sampling device - Google Patents
Stack sampling device Download PDFInfo
- Publication number
- CN204202950U CN204202950U CN201420636149.4U CN201420636149U CN204202950U CN 204202950 U CN204202950 U CN 204202950U CN 201420636149 U CN201420636149 U CN 201420636149U CN 204202950 U CN204202950 U CN 204202950U
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- China
- Prior art keywords
- communicating pipe
- suction tube
- section
- lower inlet
- expanding
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Abstract
The utility model relates to a kind of sampler, is specifically related to a kind of stack sampling device detecting factory chimney composition; Comprise the communicating pipe be arranged on chimney outer wall, described communicating pipe, cental axial position was also provided with suction tube, described communicating pipe is divided into lower inlet section, the middle part section of expanding and overhead reflux section, described overhead reflux section internal diameter is greater than lower inlet end, the described middle part section of expanding connects lower inlet section by tapered tube transition, and the import of described lower inlet section is positioned at the extreme lower position of communicating pipe, is provided with condensate storage below it; The import of described suction tube protrudes from the lower inlet section of communicating pipe, and the outlet of described suction tube is arranged on the section of expanding of communicating pipe, and arranges unidirectional air outlet valve in the outlet of suction tube, and the middle part of suction tube is provided with the pump orifice being connected to communicating pipe outer wall; Adopt the sampler of technical solutions of the utility model, convenient sampling, not easily condense simultaneously and do not corrode inner wall of stack.
Description
Technical field
The utility model relates to a kind of sampler, is specifically related to a kind of sampler detecting factory chimney composition.
Background technology
Plant gas, when generating electricity, needs to carry out burning operation; The high-temperature flue gas produced because of burning enters chimney by flue, finally enters air from chimney, by detecting the smoke components in chimney, can judge the various indexs of smoke components, and then Instructing manufacture technique adjustment, avoids environmental pollution.
To the detection method of the flue gas in flue be at present: by operating personnel, flue gas sampling pipe is inserted in flue, open gas samping pump and carry out extraction sampling, because flue-gas temperature is high, corrosion component is many, the mechanical part of sampling pump is very easy to damage, and the life-span is shorter, also has in addition to adopt to arrange communicating pipe outside chimney, then from sampling communicating pipe, the insulation difficulty of this kind of mode cross over pipe is comparatively large, is very easy to occur condensation vapor in flue gas, thus along flowing into chimney corrosion inner wall of stack communicating pipe.
Summary of the invention
The purpose of this utility model is to provide a kind of convenient sampling, simultaneously not easily condensation and do not corrode the sampler of inner wall of stack.
To achieve these goals, the utility model provides a kind of stack sampling device, comprise the communicating pipe be arranged on chimney outer wall, described communicating pipe, cental axial position was also provided with suction tube, described communicating pipe is divided into lower inlet section, the middle part section of expanding and overhead reflux section, described overhead reflux section internal diameter is greater than lower inlet end, the described middle part section of expanding connects lower inlet section by tapered tube transition, the import of described lower inlet section is positioned at the extreme lower position of communicating pipe, is provided with condensate storage below it; The import of described suction tube protrudes from the lower inlet section of communicating pipe, and the outlet of described suction tube is arranged on the section of expanding of communicating pipe, and arranges unidirectional air outlet valve in the outlet of suction tube, and the middle part of suction tube is provided with the pump orifice being connected to communicating pipe outer wall.
The feature of technique scheme is: because the middle part section of the expanding caliber of communicating pipe is maximum, when flue gas enter arrive in the middle part of it communicating pipe time, volume becomes large pressure and diminishes, certain suction is produced to suction tube, thus impel the flue gas in suction tube to keep flowing to upgrade, when needs sample, directly open pump orifice and pump out sample gas, very convenient; Gas in suction tube can not condense, because flue gas becomes the heat-insulation layer intercepting air when communicating pipe is flow through, because the flue gas in communicating pipe is continuously supplied by chimney, therefore suction tube can keep the temperature close to flue gas, thus the gas making instrument obtain from suction tube is closer to the truth of flue gas in chimney, sampling error is little; Partial fume condensation in addition in communicating pipe in time, it also can flow into downwards along condenser pipe the condensate storage be arranged on below inducer import, and because condensate tank(trap) is in the flue gas environment of high temperature, this part condensed fluid again can be gasified by flue gas and take away.
Preferably, in order to reduce the cost of unidirectional air outlet valve, ensure its reliability simultaneously, described suction tube outlet straight up, described unidirectional air outlet valve is the one-sided stainless steel cover being hinged on suction tube outlet, and the gas of such suction tube can jack-up stainless steel cover, simultaneously once gas reversed flow, stainless steel cover can cover the outlet of suction tube in the effect of gravity, avoid the gas in communicating pipe to enter suction tube.
Preferably, in order to reduce the weight of stainless steel cover, alleviate the impact that it flows on gas, the thickness of described stainless steel cover is 0.1mm.
Preferably, in order to allow gas enter from the import of suction tube more easily, the import place planar tilt of described suction tube is downward, and flue gas so upwards can directly enter.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment stack sampling device.
Wherein, chimney 1, suction tube 2, air outlet valve 21, pump orifice 22, lower inlet section 31, the middle part section of expanding 32, overhead reflux section 33, condensate storage 4.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail:
As shown in the figure: the utility model embodiment provides a kind of stack sampling device, comprise the communicating pipe be arranged on chimney 1 outer wall, communicating pipe, cental axial position was also provided with suction tube 2, be divided into lower inlet section 31 communicating pipe, the middle part section of expanding 32 and overhead reflux section 33, overhead reflux section 33 internal diameter is greater than lower inlet end 31, the middle part section of expanding 32 connects lower inlet section 31 by tapered tube transition, the import of lower inlet section 31 is positioned at the extreme lower position of communicating pipe, is provided with condensate storage 4 below it, the import of suction tube 2 protrudes from the lower inlet section of communicating pipe, enter from the import of suction tube 2 to allow gas more easily, the import place planar tilt of suction tube is downward, the flue gas upwards flowed can be allowed directly to enter, the outlet of suction tube 2 is arranged on the section of expanding 32 of communicating pipe, and unidirectional air outlet valve 21 is set in the outlet of suction tube 2, to air outlet valve 21 be one-sided be hinged on suction tube outlet stainless steel cover, the thickness of stainless steel cover is 0.1mm, the gas of such suction tube can jack-up stainless steel cover, simultaneously once gas reversed flow, stainless steel cover can cover the outlet of suction tube in the effect of gravity, the gas in communicating pipe is avoided to enter suction tube, the middle part of suction tube 2 is provided with the pump orifice 22 being connected to communicating pipe outer wall, under normality, pump orifice 22 passes through plug seal.In addition in order to ensure the reliability of stainless steel cover work, the couple positioned opposite limit rope in its hinged place can be considered, avoid the open angle of stainless steel cover more than 90 degree, and cannot return under gravity.
The principle of work of said apparatus, when flue gas enters the middle part section of expanding 32 by the lower inlet section 31 of communicating pipe, volume becomes large gradually thus pressure diminishes, certain suction can be produced like this to suction tube 2, thus impel the flue gas in suction tube 2 to keep flowing to upgrade, when needs sample, directly open pump orifice 22 and pump out sample gas.The flue gas being simultaneously communicated with Bottomhole pressure, as heat insulation layer, avoids the gas condensation in suction tube 2, thus makes the gas obtained from suction tube 2 closer to the truth of flue gas in chimney, reduces the error of sampling.
Above-described is only preferred implementation of the present utility model, and in scheme, the general knowledge such as known concrete structure and characteristic does not do too much description at this.Should be understood that; for a person skilled in the art, under the prerequisite not departing from the utility model structure, some distortion and improvement can also be made; these also should be considered as protection domain of the present utility model, and these all can not affect effect and the practical applicability of the utility model enforcement.
Claims (4)
1. stack sampling device, comprise the communicating pipe be arranged on chimney outer wall, it is characterized in that: described communicating pipe cental axial position be also provided with suction tube, described communicating pipe is divided into lower inlet section, the middle part section of expanding and overhead reflux section, described overhead reflux section internal diameter is greater than lower inlet end, and the described middle part section of expanding connects lower inlet section by tapered tube transition, the import of described lower inlet section is positioned at the extreme lower position of communicating pipe, is provided with condensate storage below it; The import of described suction tube protrudes from the lower inlet section of communicating pipe, and the outlet of described suction tube is arranged on the section of expanding of communicating pipe, and arranges unidirectional air outlet valve in the outlet of suction tube, and the middle part of suction tube is provided with the pump orifice being connected to communicating pipe outer wall.
2. stack sampling device according to claim 1, is characterized in that: straight up, described unidirectional air outlet valve is the one-sided stainless steel cover being hinged on suction tube outlet in described suction tube outlet.
3. stack sampling device according to claim 2, is characterized in that: the thickness of described stainless steel cover is 0.1mm.
4. the stack sampling device according to claim 1 or 3, is characterized in that: the import place planar tilt of described suction tube is downward.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420636149.4U CN204202950U (en) | 2014-10-30 | 2014-10-30 | Stack sampling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420636149.4U CN204202950U (en) | 2014-10-30 | 2014-10-30 | Stack sampling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204202950U true CN204202950U (en) | 2015-03-11 |
Family
ID=52660895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420636149.4U Expired - Fee Related CN204202950U (en) | 2014-10-30 | 2014-10-30 | Stack sampling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204202950U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106979872A (en) * | 2017-05-31 | 2017-07-25 | 大唐贵州发耳发电有限公司 | A kind of pressurized direct pulverizing coal system feeder on-line sampling device |
-
2014
- 2014-10-30 CN CN201420636149.4U patent/CN204202950U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106979872A (en) * | 2017-05-31 | 2017-07-25 | 大唐贵州发耳发电有限公司 | A kind of pressurized direct pulverizing coal system feeder on-line sampling device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150311 Termination date: 20151030 |
|
| EXPY | Termination of patent right or utility model |