CN209559588U - Flue component and its flue gas inspection device, gas sample tube - Google Patents
Flue component and its flue gas inspection device, gas sample tube Download PDFInfo
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- CN209559588U CN209559588U CN201822262378.5U CN201822262378U CN209559588U CN 209559588 U CN209559588 U CN 209559588U CN 201822262378 U CN201822262378 U CN 201822262378U CN 209559588 U CN209559588 U CN 209559588U
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- flue
- flue gas
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- probe tube
- gas inspection
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Abstract
The utility model relates to a kind of flue component and its flue gas inspection devices, gas sample tube, flue gas inspection device includes for radially inserting the probe tube in flue, probe tube is equipped with the mounting structure for connecting with walling of flue, the probe tube is equipped with air inlet, flue gas inspection device further includes the flue gas inspection unit for being detected to the flue gas in probe tube, and the air inlet is in the leeward side that negative pressuren zone can be formed in flue of the probe tube.When use, air-flow forms negative pressuren zone at the leeward side of probe tube, since air inlet is arranged at leeward side, the gas at this is passed through to enter in probe tube under the action of negative pressure by air inlet, and the flue dust of the carrying in air-flow is larger due to its gravity, it will continue to move to airflow direction under the action of inertia, avoid the flue dust in flue gas in this way and enter in probe tube to impact testing result.
Description
Technical field
The utility model relates to a kind of flue component and its flue gas inspection devices, gas sample tube.
Background technique
Coal is the most important non-renewable energy in China, accounts for the ratio of non-renewable energy up to 2/3, but it is also most important dirt
Dye source.The situation is tense for China's environmental pollution at present, and improving coal conversion rate is to reduce atmosphere pollution, protection environment, enable
One important and effective measures of source sustainable development.The Chinese government has reinforced the strict control to atmosphere pollution now,
The new prediction emission standard of tailor and the regulation of " whose payment who pollutes ", whole society's every profession and trade all follow this rule
Fixed, and actively from itself set off in search question classification, channel is tried every possible means improved technology from many aspects, makes every effort to reduce disposal of pollutants
Amount, power industry are more such.
Coal fired power generation can generate the combustion product of amplification quantity side by side, CO, SO2, SO3, NO thereinXAnd other gases pair
Ecological environment and human body it is very harmful.In the operation of boiler, in order to understand imperfect combustion degree in furnace, need to know cigarette
Various compositions in gas are that coal-burning power plant's energy-saving and emission-reduction and equipment safety efficient operation are saved largely to carry out firing optimization
Production cost.
Extracting sample mensuration is one of the method being widely used at present.It needs to use during extraction sample detection and take
Sampling device, the flue gas sampling device as disclosed in the Chinese invention patent application that application publication number is CN103364233A, including
Probe tube and sampler, multiple air inlets are equipped at intervals on probe tube along its length, and probe tube passes through exhaust tube and sampling
Device connection, sampler includes air bag and sampling container, and probe tube is inserted into flue by when use, and holding air bag makes in air bag
Air discharge, unclamping again air bag enters flue gas in probe tube, eventually enters into sampling container, then carry out subsequent detection.Due to
It is provided with multiple air inlets on probe tube, the flue gas at multiple positions can be sampled.
Since air inlet is towards airintake direction, flue gas is entered in probe tube above-mentioned sampling detecting device by air inlet,
Flue dust in this way in flue gas can also enter in probe tube with flue gas, can pollute corresponding detection unit, influence testing result.
Utility model content
The purpose of this utility model is to provide a kind of flue gas inspection devices, to solve existing flue gas inspection device because of flue dust
The technical issues of being easily accessible in probe tube and testing result impacted；Meanwhile the utility model also provides a kind of gas
Body probe tube, to solve the technical issues of being easily accessible flue dust in existing probe tube and influencing corresponding detection unit；Meanwhile this reality
A kind of flue component using above-mentioned flue gas inspection device is also provided with novel.
To achieve the above object, the flue gas inspection device of the utility model adopts the following technical scheme that
Flue gas inspection device, including for radially inserting the probe tube in flue, probe tube, which is equipped with, to be used for and cigarette
The mounting structure of road wall connection, the probe tube are equipped with air inlet, and flue gas inspection device further includes for in probe tube
The flue gas inspection unit that flue gas is detected, the air inlet are in the back that negative pressuren zone can be formed in flue of the probe tube
Wind side.
The beneficial effects of the utility model are: in use, flue gas inspection device is mounted on the walling of flue of flue, air-flow
Negative pressuren zone is formed at the leeward side of probe tube, and air inlet is arranged at leeward side, under the action of negative pressure, the flue in flue
Gas can enter in probe tube through air inlet, under the action of inertia can be after since the flue dust gravity carried in flue gas stream is larger
Continuous to move along flow of flue gas direction, the flue dust avoided in flue gas in this way enters in probe tube and causes shadow to testing result
It rings.
On above-mentioned flue gas inspection device basic, air inlet is advanced optimized, the air inlet is along sampling length of tube
Direction is arranged at intervals with multiple.Air inlet is equipped with multiple, can be sampled to the flue gas at different location, it is accurate to improve detection
Property.
On above-mentioned flue gas inspection device basic, further improvement to flue gas inspection unit, the flue gas inspection unit
It is fixedly mounted on the probe tube, the flue gas inspection unit, which has, extends into the extending portion in the probe tube.By flue gas
Detection unit is directly anchored on probe tube, and when installation, probe tube is directly installed on walling of flue.
On above-mentioned flue gas inspection device basic, further improvement to probe tube, the probe tube be include two with
The segmentation structure of upper segment body, releasable connection between two segment body of arbitrary neighborhood.Probe tube uses the segmentation structure of releasable connection,
It is not only convenient for processing and fabricating, also facilitates maintenance to replace, can effectively reduce production and use cost.
Further improvement on the basis of above-mentioned segmented probe tube passes through flange between two segment body of arbitrary neighborhood and connects
Binding structure releasable connection.Flange connection is under the premise of the leeward arrangement of the air inlet on the corresponding segment body of guarantee, so that installation
Simply, it dismounts more convenient.
On above-mentioned flue gas inspection device basic, further improvement to mounting structure, the mounting structure includes setting
Mounting flange on probe tube periphery.Facilitate the dismounting for realizing probe tube on flue using mounting flange.
To achieve the above object, the gas sample tube of the utility model adopts the following technical scheme that
Gas sample tube, including tube body, tube body are equipped with the mounting structure for connecting with walling of flue, set on the tube body
There is air inlet, the tube body includes the construction section for installing flue gas inspection unit to be detected to the flue gas in probe tube,
The air inlet is in the leeward side that negative pressuren zone can be formed in flue of the tube body.
On the basis of above-mentioned gas probe tube, the air inlet is arranged at intervals with multiple along tube length direction.Air inlet
Mouthful be equipped with it is multiple, the flue gas at different location can be sampled, improve detection accuracy.
On the basis of above-mentioned gas probe tube, further improvement to tube body, the tube body be include more than two sections
The segmentation structure of body, releasable connection between two segment body of arbitrary neighborhood.Tube body uses the segmentation structure of releasable connection, not only just
In processing and fabricating, also facilitates maintenance to replace, can effectively reduce production and use cost
Further improvement on the basis of above-mentioned segmented tube body passes through flanged joint between two segment body of arbitrary neighborhood
Structure releasable connection.Flange connection is under the premise of the leeward arrangement of the air inlet on the corresponding segment body of guarantee, so that installation letter
It is single, it dismounts more convenient.
Another improvement on the basis of above-mentioned segmented tube body, the mounting structure include the peace being arranged on tube body periphery
Fill flange.Facilitate the dismounting for realizing probe tube on flue using mounting flange.
The technical solution of flue component provided by the utility model:
Flue component, including flue, flue gas inspection device is equipped on the walling of flue of flue, and flue gas inspection device includes using
In radially inserting the probe tube in flue, probe tube is equipped with the mounting structure for connecting with walling of flue, the sampling
Pipe is equipped with air inlet, and flue gas inspection device further includes the flue gas inspection unit for being detected to the flue gas in probe tube,
The air inlet is in the leeward side that negative pressuren zone can be formed in flue of the probe tube.
On above-mentioned flue assemblies, air inlet is advanced optimized, the air inlet is along probe tube length direction
It is arranged at intervals with multiple.Air inlet be equipped with it is multiple, the flue gas at different location can be sampled, improve detection accuracy.
On above-mentioned flue assemblies, further improvement to flue gas inspection unit, the flue gas inspection unit is fixed
It is mounted on the probe tube, the flue gas inspection unit, which has, extends into the extending portion in the probe tube.By flue gas inspection
Unit is directly anchored on probe tube, and when installation, probe tube is directly installed on walling of flue.
On above-mentioned flue assemblies, further improvement to probe tube, the probe tube be include more than two sections
The segmentation structure of body, releasable connection between two segment body of arbitrary neighborhood.Probe tube uses the segmentation structure of releasable connection, not only
Production easy to process also facilitates maintenance to replace, can effectively reduce production and use cost.
Further improvement on the basis of above-mentioned segmented probe tube passes through flange between two segment body of arbitrary neighborhood and connects
Binding structure releasable connection.Flange connection is under the premise of the leeward arrangement of the air inlet on the corresponding segment body of guarantee, so that installation
Simply, it dismounts more convenient.
On above-mentioned flue assemblies, further improvement to mounting structure, the mounting structure includes that setting is taking
Mounting flange on sample pipe periphery.Facilitate the dismounting for realizing probe tube on flue using mounting flange.
Detailed description of the invention
Fig. 1 is the use state of the embodiment 1 of flue gas inspection device provided by the utility model with reference to figure；
Fig. 2 be Fig. 1 along A to partial enlarged view；
Fig. 3 is the cross-sectional view of the second segment body in Fig. 1；
Description of symbols: 1- tube body；2- flue gas inspection unit；3- flue gas inspection unit installing structure；4- walling of flue；5-
Insulating layer；6- mounting flange；7- protrudes into pipe section；The first segment body of 11-；The second segment body of 12-；13- air inlet；Arrow side in Fig. 1
To for airflow direction.
Specific embodiment
The embodiments of the present invention is described further with reference to the accompanying drawing.
The specific embodiment 1 of the flue gas inspection device of the utility model:
As shown in Figure 1 to Figure 3, flue gas inspection device includes probe tube, and the tube body 1 of probe tube, which is equipped with, to be used for and walling of flue
The mounting structure of 4 connections, the tube body 1 of probe tube are equipped with air inlet 13, are equipped with flue gas inspection list in 1 inner cavity of tube body of probe tube
Member 2, flue gas inspection unit 2, which has flue gas inspection portion and extends into tube body 1, protrudes into pipe section 7, protrudes into pipe section 7 and tube body
Inner cavity connection realizes detection guiding the flue gas in probe tube to flue gas inspection portion.Air inlet 13 on tube body 1 is in tube body
1 can form the leeward side of negative pressuren zone in flue, so that flue gas stream enters sampling by air inlet under the action of negative pressure
Guan Zhong.
In use, due in flue wind speed it is higher, flue gas stream forms negative pressuren zone at the leeward side of probe tube, due into
Port 13 is arranged at leeward side, passes through the gas at this and enters probe tube by air inlet 13 under the action of negative pressure
In, and the flue dust of the carrying in air-flow will continue to move to airflow direction under the action of inertia since its gravity is larger, in this way
It avoids the flue dust in flue gas and enters in probe tube to impact testing result.Moreover, in general, protruding into pipeline
Corresponding strainer can be also arranged in the gas inlet in portion 7, to realize the filtering to flue dust, it is of course also possible to save the strainer at this.
The diameter of flue is generally all very big, and flow velocity, the ingredient of the flue gas at the radially different position of flue can all have very big
Difference, so if only detecting the smoke components of a certain position of flue, testing result cannot accurately reflect flue gas
The ingredient of gas.In order to improve the accuracy that sample detection arrives, need to detect to the smoke components at flue different location,
This makes it possible to the smoke components being accurately obtained at different location.Therefore, multiple air inlets are set on the tube body of probe tube 1
Mouth 13, these air inlets 13 are arranged along tube length direction interval.In detection process, these air inlets 13 make at different location
Flue gas be able to enter in probe tube, flue gas is sufficiently mixed in flow process, and mixed flue gas is through free diffusing
Mode enters in flue gas inspection unit, is detected by the flue gas after 2 pairs of flue gas inspection unit mixing, this makes it possible to obtain
Smoke components at different location.
In fact, above-mentioned air inlet 13 is applied not only to air inlet, the flue gas in probe tube can also be in the form of free diffusing
Slowly flowed back in flue from the evolution of air inlet 13.
Since the flue gas flow rate of flue middle position is larger, the flue gas in probe tube is entered from the position
Amount will also become larger, and also will affect the precision of sample detection in this way, in order to avoid the influence of the above situation, by air inlet 13
Aperture by flue sidewall to being gradually reduced in the middle part of flue, this makes it possible to guarantee that the air inflow at different location is essentially identical,
Improve detection accuracy.In actual application, the flow velocity at flue different-diameter position is first detected in advance, then according to these
Flow speed data calculates the position and aperture of required air inlet.
For convenient for probe tube assembly, transport, by the tube body 1 of probe tube be set as include two or more segment bodies segmented
Structure, releasable connection between at least two adjacent segment bodies.Specifically, pass through flange connection between two segment body of releasable connection
Releasable connection.Probe tube dismounting can assembled at multiple segments, transported in this way.
In the present embodiment, probe tube includes two segment bodies, is the first segment body 11 and the second segment body 12, mounting structure respectively
It is arranged on the first segment body 11 and flue gas inspection unit 2 is mounted on the segment body, the pipe section 7 that protrudes into of flue gas inspection unit 2 is stretched
Enter in the segment body.
First segment body 11 and the second segment body 12 are tubular, and the periphery of the first segment body 11 is equipped with mounting flange 6, is used for
It is mounted on walling of flue 4, flue gas inspection unit 2 is mounted at the end position of the first segment body 11, and by the end of the first segment body 11
Portion's closing, the connection structure at this specifically use flange connection, i.e. flue gas inspection unit installing structure 3 is installed using flange
Structure.The other end of first segment body 11 passes through walling of flue 4 and insulating layer 5 and extend into flue, end by flange arrangement with
The connection of second segment body 12.
In use process, flue gas stream forms negative pressuren zone in the leeward side of probe tube, since air inlet 13 is arranged leeward
At side, so that flue gas stream is entered in the tube body 1 of probe tube under the action of negative pressure by air inlet 13, and in flue gas stream
The flue dust of carrying will continue to move to airflow direction under the action of inertia since its gravity is larger, will not enter probe tube
In, it also avoids therefore to impact testing result.And prevent flue dust from entering in probe tube by this structure,
No setting is required filter screen avoids filter screen from influencing through-flow effect, at the same with keep probe tube structure simple.
It should be noted that because relying primarily on flue gas free diffusing realizes measurement, cigarette provided by the present embodiment
Gas detection device has that detection relatively lags behind, but has no effect on measurement accuracy.
In the present embodiment, the escaping of ammonia on-line measuring device is specifically can be used in flue gas inspection unit.Certainly, in other embodiments
In, other kinds of flue gas inspection device can also be selected according to the actual situation.
The embodiment 2 of the flue gas inspection device of the utility model, in the present embodiment, probe tube are integral type tubulose knot
Structure, other are same as Example 1, repeat no more.
The embodiment 3 of the flue gas inspection device of the utility model, in the present embodiment, probe tube combine structure by three segment bodies
At certainly in other embodiments, the quantity of segment body can also be four, five, six or other quantity, other and implementation
Example 1 is identical, repeats no more.
The embodiment 4 of the flue gas inspection device of the utility model passes through the removable company of screw thread in the present embodiment between segment body
It connects, certainly can also be by other structures releasable connection, other are same as Example 1, repeat no more.
The embodiment of the gas sample tube of the utility model, the gas sample tube and above-mentioned flue gas inspection Installation practice
In probe tube structure it is identical, details are not described herein.
The embodiment of the flue component of the utility model, as shown in Figure 1, flue component includes flue, the walling of flue 4 of flue
On flue gas inspection device is installed, flue gas inspection device is identical as the flue gas inspection apparatus structure in above-described embodiment, herein not
It repeats again.
Claims (12)
1. flue gas inspection device, including for radially inserting the probe tube in flue, probe tube, which is equipped with, to be used for and flue
The mounting structure of wall connection, the probe tube are equipped with air inlet, and flue gas inspection device further includes for the cigarette in probe tube
The flue gas inspection unit that gas is detected, it is characterised in that: the air inlet is in being formed in flue for the probe tube
The leeward side of negative pressuren zone.
2. flue gas inspection device according to claim 1, it is characterised in that: the air inlet is between probe tube length direction
It is multiple every being provided with.
3. flue gas inspection device according to claim 1 or 2, it is characterised in that: the flue gas inspection unit is fixedly mounted
On the probe tube, the flue gas inspection unit, which has, extends into the extending portion in the probe tube.
4. flue gas inspection device according to claim 1 or 2, it is characterised in that: the probe tube be include two or more
The segmentation structure of segment body, releasable connection between two segment body of arbitrary neighborhood.
5. flue gas inspection device according to claim 4, it is characterised in that: pass through method between two segment body of arbitrary neighborhood
Flange connection structure releasable connection.
6. flue gas inspection device according to claim 1 or 2, it is characterised in that: the mounting structure includes that setting is taking
Mounting flange on sample pipe periphery.
7. gas sample tube, including tube body, tube body is equipped with the mounting structure for connecting with walling of flue, and the tube body is equipped with
Air inlet, it is characterised in that: the tube body includes for installing flue gas inspection unit to detect to the flue gas in probe tube
Construction section, the air inlet is in the leeward side that negative pressuren zone can be formed in flue of the tube body.
8. gas sample tube according to claim 7, it is characterised in that: the air inlet is set along tube length direction interval
It is equipped with multiple.
9. gas sample tube according to claim 7 or 8, it is characterised in that: the tube body be include more than two segment bodies
Segmentation structure, releasable connection between two segment body of arbitrary neighborhood.
10. gas sample tube according to claim 9, it is characterised in that: pass through method between two segment body of arbitrary neighborhood
Flange connection structure releasable connection.
11. gas sample tube according to claim 9, it is characterised in that: the mounting structure includes being arranged outside tube body
Mounting flange on week.
12. flue component, including flue, flue gas inspection device is installed on the walling of flue of flue, it is characterised in that: the flue gas
Detection device uses such as flue gas inspection device described in any one of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822262378.5U CN209559588U (en) | 2018-12-30 | 2018-12-30 | Flue component and its flue gas inspection device, gas sample tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822262378.5U CN209559588U (en) | 2018-12-30 | 2018-12-30 | Flue component and its flue gas inspection device, gas sample tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209559588U true CN209559588U (en) | 2019-10-29 |
Family
ID=68306584
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822262378.5U Active CN209559588U (en) | 2018-12-30 | 2018-12-30 | Flue component and its flue gas inspection device, gas sample tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209559588U (en) |
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2018
- 2018-12-30 CN CN201822262378.5U patent/CN209559588U/en active Active
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