CN206362774U - Flue gas dry and wet oxygen measurement device - Google Patents
Flue gas dry and wet oxygen measurement device Download PDFInfo
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- CN206362774U CN206362774U CN201720036510.3U CN201720036510U CN206362774U CN 206362774 U CN206362774 U CN 206362774U CN 201720036510 U CN201720036510 U CN 201720036510U CN 206362774 U CN206362774 U CN 206362774U
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Abstract
The utility model provides a kind of flue gas dry and wet oxygen measurement device, including：When carrying out wet oxygen measurement, air enters one end of the 3rd pipeline, in the other end the first negative pressure of formation of the 3rd pipeline, the wet flue gas in flue is caused to enter the first feeler lever, wet flue gas enters oxygen sensor via the first feeler lever being sequentially connected, the first filter, the first pipeline and the 3rd filter, carries out the wet oxygen content measurement in wet flue gas；When carrying out dry oxygenation measurement, air enters one end of second pipe, in the other end the second negative pressure of formation of second pipe, the wet flue gas in flue is caused to enter the second feeler lever, wet flue gas is in dehydrator formation dry flue gas, dry flue gas enters same oxygen sensor by the 3rd tracheae, the first pipeline and the 3rd filter that are sequentially connected again, carries out the dry measurement of oxygen content in dry flue gas.The utility model can measure wet oxygen content and dry oxygen content in flue gas by same oxygen sensor, reduce measurement cost and measurement error.
Description
Technical field
The utility model is related to oxygen measurement technical field, in particular it relates to a kind of flue gas dry and wet oxygen measurement device.
Background technology
In recent years, environmental pollution is as influence people's lives and government's significant problem urgently to be resolved hurrily, and air pollution is again
It is the pollution of people's deepest feelings in environmental pollution.The main reason of air pollution is the flue gas institute discharged after combustion of fossil fuel
Cause, combustion of fossil fuels is mainly Industrial Boiler and automobile.Containing a large amount of in the flue gas discharged after Burning Process for Industrial Boiler
Gaseous contaminant, oxygen and the water vapour such as flue dust, sulfur dioxide and nitrogen oxides, according to relevant national standard, it is necessary to continuous
The oxygen content of automatic on-line measurement flue gas.
Current flue gas dry and wet oxygen measurement device is contained using two oxygen sensors, a wet oxygen of the measurement containing moisture
The dry oxygen content of amount, in addition a measurement removing moisture, adds measurement cost.In addition, existing flue gas oxygen content is surveyed
Amount device is that flue gas is detached into flue by aspiration pump, by heating pipeline by flue gas long-distance transmissions to drier, in flue gas
The dry oxygen in measurement flue gas after moisture is removed, overall structure and pipeline are complicated, easily occur the condensation loss of moisture, produce measurement
Error.
Utility model content
The main purpose of the utility model embodiment is to provide a kind of flue gas dry and wet oxygen measurement device, to reduce measurement
The cost and error of wet oxygen Gas content and dry oxygen content in flue gas.
To achieve these goals, the utility model embodiment provides a kind of flue gas dry and wet oxygen measurement device, is arranged on cigarette
On road, including：When carrying out wet oxygen measurement, air enters the first tracheae opened from the first magnetic valve, is sprayed by the second negative pressure
Mouth enters one end of the 3rd pipeline, in the other end the first negative pressure of formation of the 3rd pipeline, makes the air in the 3rd pipeline by inserting
Enter the second feeler lever inside flue to accelerate to flow into flue, flow into the air of flue causes the wet flue gas in flue to enter first simultaneously
Feeler lever, wet flue gas enters oxygen sensor via the first feeler lever being sequentially connected, the first filter, the first pipeline and the 3rd filter
Device, carries out the wet oxygen content measurement in wet flue gas, and wet flue gas also enters the 3rd tracheae from the first pipeline, then by be sequentially connected the
Three tracheaes, dehydrator, the 4th tracheae, the 4th pipeline, the second filter and the second feeler lever return to flue；
When carrying out dry oxygenation measurement, air enters the second tracheae opened from the first magnetic valve, by the first negative pressure nozzle
Into one end of second pipe, in the other end the second negative pressure of formation of second pipe, the air in second pipe is made by first
Feeler lever accelerates to flow into flue, and flow into the air of flue causes wet flue gas in flue to enter the second feeler lever simultaneously, wet flue gas via
The second feeler lever, the second filter, the 4th pipeline and the 4th tracheae being sequentially connected enter dehydrator progress dewater treatment and form dry
Flue gas, dry flue gas enters same oxygen sensor by the 3rd tracheae, the first pipeline and the 3rd filter that are sequentially connected again, enters
Dry measurement of oxygen content in row dry flue gas, dry flue gas also enters the first filter from the first pipeline, and cigarette is returned by the first feeler lever
Road.
In wherein a kind of embodiment, in addition to：The 5th tracheae being connected with oxygen sensor；
The second magnetic valve being connected with the 5th tracheae；
Air enters the 5th tracheae from the second magnetic valve, enters back into oxygen sensor, oxygen sensor is according in air
Oxygen content is calibrated automatically.
In wherein a kind of embodiment, in addition to：The peristaltic pump being connected by the 6th tracheae with dehydrator, connects with peristaltic pump
The drainpipe connect；
The moisture of dehydrator dewater treatment is by the 6th tracheae, peristaltic pump and drainpipe discharge flue gas dry and wet oxygenation measurement dress
Put.
In wherein a kind of embodiment, in addition to：Respectively with the first feeler lever, the second feeler lever, the first negative pressure nozzle and second
The mounting seat of negative pressure nozzle connection；
The self limiting temperature heating plate in mounting seat is fixed on, for heated at constant temperature mounting seat.
In wherein a kind of embodiment, in addition to：Sensor fixed seat, connects mounting seat；
First gas-tpe fitting, is connected between the first pipeline and the 3rd tracheae；
Second gas-tpe fitting, is connected between the first negative pressure nozzle and the second tracheae；
3rd gas-tpe fitting, is connected between the second negative pressure nozzle and the first tracheae；
4th gas-tpe fitting, is connected between the 4th pipeline and the 4th tracheae；
5th gas-tpe fitting, is connected between sensor fixed seat and the 5th tracheae；
6th gas-tpe fitting, connects the first magnetic valve；And,
7th gas-tpe fitting, connects the second magnetic valve.
In wherein a kind of embodiment, in addition to：First filter fixes lid, for fixing the first filter；
Second filter fixes lid, for fixing the first filter；
First sealing nut, is arranged on the fixation of the first filter and covers；
Second sealing nut, is arranged on the fixation of the second filter and covers.
By implementing the utility model, the wet oxygen Gas content in flue gas can be measured simultaneously by same oxygen sensor
With dry oxygen content, measurement cost and measurement error are reduced.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
The accompanying drawing used required in description is briefly described, it should be apparent that, drawings in the following description are only that this practicality is new
Some embodiments of type, for those of ordinary skill in the art, without having to pay creative labor, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the structure chart of the utility model embodiment flue gas dry and wet oxygen measurement device；
Fig. 2 is the structure chart of the utility model embodiment sampling component.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belongs to the scope of the utility model protection.
In view of current flue gas dry and wet oxygen measurement device is added using two oxygen sensors and complicated pipeline structure
Measurement cost and measurement error, the utility model embodiment provide a kind of flue gas dry and wet oxygen measurement device, can be by same
Wet oxygen Gas content and dry oxygen content in oxygen sensor measurement flue gas, reduce measurement cost and measurement error.Tie below
Accompanying drawing is closed the utility model is described in detail.
Fig. 1 is the structure chart of the utility model embodiment flue gas dry and wet oxygen measurement device, and Fig. 2 is the utility model embodiment
The structure chart of sampling component.As shown in Figures 1 and 2, flue gas dry and wet oxygen measurement device is arranged on flue, when progress wet oxygen measurement
When, air enters the first tracheae 15 opened from the first magnetic valve 12, enters the 3rd pipeline 50 by the second negative pressure nozzle 40
One end, in the other end the first negative pressure of formation of the 3rd pipeline 50, makes the air in the 3rd pipeline 50 by inserting inside flue
Second feeler lever 47 accelerates to flow into flue.
To flow into the air of flue cause wet flue gas in flue to enter the first feeler lever simultaneously, and wet flue gas is via being sequentially connected
First feeler lever 21, the first filter 28, the first pipeline 48 and the 3rd filter 36 enter oxygen sensor 31, carry out in wet flue gas
Wet oxygen content measurement, wet flue gas also enters the 3rd tracheae 19 from the first pipeline 48, then the 3rd tracheae 19, de- by being sequentially connected
Hydrophone 8, the 4th tracheae 20, the 4th pipeline 51, the second filter 45 and the second feeler lever 47 return to flue.
When carrying out dry oxygenation measurement, air enters the second tracheae 14 opened from the first magnetic valve 12, by the first negative pressure
Nozzle 38 enters one end of second pipe 49, in the other end the second negative pressure of formation of second pipe 49, makes in second pipe 49
Air accelerates to flow into flue by the first feeler lever 21.
To flow into the air of flue cause wet flue gas in flue to enter the second feeler lever simultaneously, and wet flue gas is via being sequentially connected
Second feeler lever 47, the second filter 45, the 4th pipeline 51 and the 4th tracheae 20 enter the progress of dehydrator 8 dewater treatment and form dry cigarette
Gas, dry flue gas enters same oxygen sensor by the 3rd tracheae 19, the first pipeline 48 and the 3rd filter 36 that are sequentially connected again
Device 31, carries out the dry measurement of oxygen content in dry flue gas.Dry flue gas also enters the first filter 28 from the first pipeline 48, by first
Feeler lever 21 returns to flue.
Wherein, as shown in Fig. 2 in the wet oxygen content in measuring flue gas, the first negative pressure is specifically formed in the 3rd pipeline 50
With the connection intersection (position II in Fig. 2) of the 4th pipeline 51, the wet flue gas in flue is attracted to enter the first feeler lever 21.Surveying
When measuring the dry oxygen content in flue gas, the second negative pressure is specifically formed in the first pipeline 48 and connection intersection (Fig. 2 of second pipe 49
In position I), attract flue in wet flue gas enter the second feeler lever 47.
In wherein a kind of embodiment, flue gas dry and wet oxygen measurement device mainly includes：Sampling box 5 and sampling component 1 etc..Adopt
Sample case 5 includes high-temperature part and normal temperature part.Sampling component 1 is located at the high-temperature part of sampling box 5, flue gas dry and wet oxygen measurement device
Remaining internal component is located at the normal temperature part of sampling box 5.
The sampling component 1 includes：Mounting seat 24, the flue mounting flange 23 being connected respectively with mounting seat 24, the first feeler lever
21st, the first filter 28 connected with the first feeler lever 21, the first pipeline 48 connected with the first filter 28, one end are visited with first
Second pipe 49 that the filter 28 of bar 21 and first is respectively communicated with, the first negative pressure nozzle for being arranged on the other end of second pipe 49
38th, the second feeler lever 47, connected with the second feeler lever 47 the second filter 45, connected with the second filter 45 the 4th pipeline 51,
The 3rd pipeline 50 that one end and the second feeler lever 47 and the second filter 45 are respectively communicated with, be arranged on the other end of the 3rd pipeline 50 the
Two negative pressure nozzles 40, sensor fixed seat 33, are separately positioned on the mistake of oxygen sensor 31 and the 3rd in sensor fixed seat 33
Filter 36.
Wherein, the sealing welding of flue mounting flange 23 is connected in mounting seat 24 with the flue flange being welded on flue,
And screwed by multiple flue mounting flange bolts 22.First feeler lever 21, the second feeler lever 47, the first negative pressure nozzle 38 and second are negative
Pressure nozzle 40 is tightened in mounting seat 24.First feeler lever 21 and the second feeler lever 47 are inserted into inside flue, and the first feeler lever 21
It is different with the length of the second feeler lever 47, in order to avoid interfere.Oxygen sensor 31 is tightened in sensor fixed seat 33, and is compressed
Small carbon seal ring 32 between oxygen sensor 31 and sensor fixed seat 33, it is ensured that sealing.Sensor fixed seat 33
It is fixedly connected with mounting seat 24 by screw 30, and it is close to compress the big graphite being located between sensor fixed seat 33 and mounting seat 24
Seal 34, it is ensured that sealing.
The normal temperature part of sampling box 5 is provided with：First magnetic valve 12, is connected to the first magnetic valve 12 and the second negative pressure nozzle
The first tracheae 15 between 40, is connected to the second tracheae 14 between the first magnetic valve 12 and the first negative pressure nozzle 38, dehydrator
8, and the 3rd tracheae 19 being connected between dehydrator 8 and mounting seat 24 and the 4th tracheae 20.
In embodiment, flue gas dry and wet oxygen measurement device can also include：The 5th tracheae 16 being connected with oxygen sensor 31,
And the second magnetic valve 17 being connected with the 5th tracheae 16.When it is implemented, opening the second magnetic valve 17, air is from the second electromagnetism
Valve 17 enters the 5th tracheae (16), oxygen sensor 31 is entered back into, to make oxygen content of the oxygen sensor 31 in air
(20.9%) calibrated automatically, improve the measurement accuracy of oxygen sensor 31.
Oxygen sensor 31 can use zirconium oxide carrying current formula thick film oxygen sensor, and this sensor is thin slice
There are baseline air room, contact flue gas surface (negative electrode) and baseline air chamber surface (anode) in shape, thin slice end contact flue gas, inside
With thick film platinum electrode, heater is carried inside thin slice.When adding external DC voltage in anode and negative electrode, then in zirconium oxide and
Electric current is produced in the loop that voltage is constituted, this electric current is limited by zirconium oxide diffusion layer and forms the limit corresponding to oxygen concentration
Current value, oxygen concentration can be calculated by measuring electric current.
In embodiment, flue gas dry and wet oxygen measurement device can also include：By the 6th tracheae 10 be connected with dehydrator 8 it is compacted
Dynamic pump 9, the drainpipe 11 being connected with peristaltic pump 9 can discharge the dewater treatment of dehydrator 8 by peristaltic pump 9 and drainpipe 11
Moisture.When it is implemented, the moisture of the dewater treatment of dehydrator 8 is discharged flue gas by the 6th tracheae 10, peristaltic pump 9 and drainpipe 11 and done
Wet oxygen measurement apparatus.
As shown in figure 1, the first magnetic valve 12, the second magnetic valve 17, dehydrator 8 exchange work with peristaltic pump 9 in 220V
Make to run under voltage, dehydrator 8 can also connect temperature controller, temperature controller is used to measure the temperature inside dehydrator 8, makes dehydrator
Temperature inside 8 is maintained at 4 DEG C.
In embodiment, flue gas dry and wet oxygen measurement device can also include：First gas-tpe fitting 37, is connected to the first pipeline 48
And the 3rd between tracheae 19；Second gas-tpe fitting 39, is connected between the first negative pressure nozzle 38 and the second tracheae 14；3rd tracheae
Joint 41, is connected between the second negative pressure nozzle 40 and the first tracheae 15；4th gas-tpe fitting 42, is connected to the He of the 4th pipeline 51
Between 4th tracheae 20；5th gas-tpe fitting 35, is connected between the tracheae 16 of sensor fixed seat 33 and the 5th；6th tracheae connects
First 13, connect the first magnetic valve 12；And the 7th gas-tpe fitting 18, connect the second magnetic valve 17.
In embodiment, the first gas-tpe fitting 37 and the 4th gas-tpe fitting 42 can be tightened in mounting seat 24, the second tracheae
Joint 39 can be tightened on the first negative pressure nozzle 38, and the 3rd gas-tpe fitting 41 can be tightened on the second negative pressure nozzle 40, the
Five gas-tpe fittings 35 can be tightened in sensor fixed seat 33.
As shown in Fig. 2 sampling component 1 can be connected by bolt 3 with sampling box 5, box sealing pad 2 is arranged on set of samples
Ensure sealing between the high-temperature part of part 1 and sampling box 5.Self limiting temperature heating plate 4 can be fixed on mounting seat 24 using screw 6
On, for heated at constant temperature mounting seat 24, while being contacted by smooth surface with mounting seat 24, in favor of heat transfer.Sampling box 5
High-temperature part inwall is also equipped with insulation material 7, for keeping the temperature inside the high-temperature part of sampling box 5, it is to avoid heat scatters and disappears, and protects
The wet flue gas that card enters flue gas dry and wet oxygen measurement device will not go out condensed water to the cold.
In embodiment, the first filter 28 and the second filter 45 can be bucket filter, and the 3rd filter 36 can be with
For sheet of filter, for filtering the flue dust in flue gas.Wherein, the first filter 28 is fixed lid 26 by the first filter and positioned
In mounting seat 24, and it is close by the first sealing nut 27 compression marble being arranged on the first filter fixation lid 26
Seal 25 ensures sealing；Second filter 45 fixes the location and installation of lid 44 in mounting seat 24 by the second filter, and passes through
The second sealing nut 46 being arranged on the second filter fixation lid 44, which compresses marble sealing ring 43, ensures sealing；3rd filtering
Device 36 passes through filter bung flange 29 and the location and installation of sensor fixed seat 33.
To sum up, the utility model can measure the wet oxygen Gas content and dry oxygen in flue gas simultaneously by an oxygen sensor
Gas content, it is simple in construction, reduce measurement cost and measurement error.Further, the utility model can also be introduced air into
Flue gas dry and wet oxygen measurement device, makes oxygen content of the oxygen sensor in air be calibrated automatically, improves oxygen biography
The measurement accuracy of sensor, more accurately to measure the wet oxygen Gas content and dry oxygen content in flue gas.Those skilled in the art
It can also be calculated by the wet oxygen Gas content in flue gas and dry oxygen content and obtain smoke moisture, factory is analyzed according to smoke moisture
Influence of the flue gas of discharge to environment.
Particular embodiments described above, has carried out entering one to the purpose of this utility model, technical scheme and beneficial effect
Step is described in detail, be should be understood that and be the foregoing is only specific embodiment of the utility model, is not used to limit this
The protection domain of utility model, it is all within spirit of the present utility model and principle, any modification for being made, equivalent substitution, change
Enter, should be included within protection domain of the present utility model.
Claims (6)
1. a kind of flue gas dry and wet oxygen measurement device, is arranged on flue, it is characterised in that including：
When carrying out wet oxygen measurement, air enters the first tracheae (15) opened from the first magnetic valve (12), by the second negative pressure
Nozzle (40) enters one end of the 3rd pipeline (50), and in the other end the first negative pressure of formation of the 3rd pipeline (50), order is described
Air in 3rd pipeline (50) accelerates to flow into the flue, the inflow institute by inserting the second feeler lever (47) inside flue
The air of flue is stated while causing wet flue gas in the flue to enter the first feeler lever (21), the wet flue gas is via being sequentially connected
First feeler lever (21), the first filter (28), the first pipeline (48) and the 3rd filter (36) enter oxygen sensor
(31) the wet oxygen content measurement in the wet flue gas, is carried out, the wet flue gas also enters the 3rd gas from first pipeline (48)
Manage (19), then by the 3rd tracheae (19) being sequentially connected, dehydrator (8), the 4th tracheae (20), the 4th pipeline (51), the
Tow filtrator (45) and second feeler lever (47) return to flue；
When carrying out dry oxygenation measurement, air enters the second tracheae (14) opened from first magnetic valve (12), by first
Negative pressure nozzle (38) enters one end of second pipe (49), in the other end the second negative pressure of formation of the second pipe (49), order
Air in the second pipe (49) accelerates to flow into the flue, the inflow flue by first feeler lever (21)
Air cause the wet flue gas in the flue to enter second feeler lever (47) simultaneously, the wet flue gas is via being sequentially connected
Second feeler lever (47), second filter (45), the 4th pipeline (51) and the 4th tracheae (20) enter institute
State dehydrator (8) carry out dewater treatment formation dry flue gas, the dry flue gas again by be sequentially connected the 3rd tracheae (19), institute
State the first pipeline (48) and the 3rd filter (36) enters the same oxygen sensor (31), carry out the dry flue gas
In dry measurement of oxygen content, the dry flue gas also from first pipeline (48) enter first filter (28), by institute
State the first feeler lever (21) and return to the flue.
2. flue gas dry and wet oxygen measurement device according to claim 1, it is characterised in that also include：
The 5th tracheae (16) being connected with the oxygen sensor (31)；
The second magnetic valve (17) being connected with the 5th tracheae (16)；
Air enters the 5th tracheae (16) from second magnetic valve (17), enters back into the oxygen sensor (31), institute
Oxygen content of the oxygen sensor (31) in the air is stated to be calibrated automatically.
3. flue gas dry and wet oxygen measurement device according to claim 1, it is characterised in that also include：
The peristaltic pump (9) being connected by the 6th tracheae (10) with the dehydrator (8), the draining being connected with the peristaltic pump (9)
Manage (11)；
The moisture of dehydrator (8) dewater treatment passes through the 6th tracheae (10), the peristaltic pump (9) and the drainpipe
(11) the flue gas dry and wet oxygen measurement device is discharged.
4. flue gas dry and wet oxygen measurement device according to claim 1, it is characterised in that also include：
Respectively with first feeler lever (21), second feeler lever (47), the first negative pressure nozzle (38) and described second negative
Press the mounting seat (24) of nozzle (40) connection；
The self limiting temperature heating plate (4) in the mounting seat (24) is fixed on, for mounting seat described in heated at constant temperature (24).
5. flue gas dry and wet oxygen measurement device according to claim 4, it is characterised in that also include：
Sensor fixed seat (33), connects the mounting seat (24)；
First gas-tpe fitting (37), is connected between first pipeline (48) and the 3rd tracheae (19)；
Second gas-tpe fitting (39), is connected between the first negative pressure nozzle (38) and second tracheae (14)；
3rd gas-tpe fitting (41), is connected between the second negative pressure nozzle (40) and first tracheae (15)；
4th gas-tpe fitting (42), is connected between the 4th pipeline (51) and the 4th tracheae (20)；
5th gas-tpe fitting (35), is connected between the sensor fixed seat (33) and the 5th tracheae (16)；
6th gas-tpe fitting (13), connects first magnetic valve (12)；And,
7th gas-tpe fitting (18), the second magnetic valve of connection (17).
6. flue gas dry and wet oxygen measurement device according to claim 1, it is characterised in that also include：
First filter fixes lid (26), for fixing first filter (28)；
Second filter fixes lid (44), for fixing first filter (45)；
First sealing nut (27), is arranged on first filter and fixes on lid (26)；
Second sealing nut (46), is arranged on second filter and fixes on lid (44).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720036510.3U CN206362774U (en) | 2017-01-12 | 2017-01-12 | Flue gas dry and wet oxygen measurement device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720036510.3U CN206362774U (en) | 2017-01-12 | 2017-01-12 | Flue gas dry and wet oxygen measurement device |
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| Publication Number | Publication Date |
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| CN206362774U true CN206362774U (en) | 2017-07-28 |
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ID=59380403
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| CN201720036510.3U Active CN206362774U (en) | 2017-01-12 | 2017-01-12 | Flue gas dry and wet oxygen measurement device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108008086A (en) * | 2017-12-27 | 2018-05-08 | 武汉洪兴伟业环境科技有限公司 | The cancellation element of flue gas feeler lever systematic error in flue gas analyzer calibration process |
-
2017
- 2017-01-12 CN CN201720036510.3U patent/CN206362774U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108008086A (en) * | 2017-12-27 | 2018-05-08 | 武汉洪兴伟业环境科技有限公司 | The cancellation element of flue gas feeler lever systematic error in flue gas analyzer calibration process |
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