CN214703482U - Smoke oxygen content measuring device - Google Patents
Smoke oxygen content measuring device Download PDFInfo
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- CN214703482U CN214703482U CN202023240506.XU CN202023240506U CN214703482U CN 214703482 U CN214703482 U CN 214703482U CN 202023240506 U CN202023240506 U CN 202023240506U CN 214703482 U CN214703482 U CN 214703482U
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Abstract
The utility model relates to a waste disposal technical field, concretely relates to flue gas oxygen content measuring device, the measurement of the high dust flue gas oxygen content of two combustion chambers export high temperature of mainly used hazardous waste incineration processing trade. The oxygen content analyzer comprises a sampling tube and an oxygen content analyzer, wherein the sampling tube is provided with a sampling channel, and the sampling channel is provided with a bending structure; the oxygen content analyzer is arranged on the side wall of the sampling tube, communicated with the sampling channel and positioned behind the bending structure, the sampling path of the smoke oxygen content measuring device is improved, the sampling port of the oxygen content analyzer is arranged behind the bending structure with small smoke impact, most of high-temperature dust is discharged after circulating for a circle in the sampling tube, the circulating pipeline is not blocked, and dust accumulation caused by the probe at the tail part of the sampling tube in the traditional installation scheme is eliminated.
Description
Technical Field
The utility model relates to a waste disposal technical field, concretely relates to flue gas oxygen content measuring device, the measurement of the high dust flue gas oxygen content of two combustion chambers export high temperature of mainly used hazardous waste incineration processing trade.
Background
In China, a large number of dangerous wastes are generated as hazardous wastes and need to be treated every year, and the current main treatment method for treating the dangerous wastes is landfill after incineration. The main combustion equipment for treating hazardous waste by the current incineration method is a combination of a rotary kiln and a secondary combustion chamber. The hazardous waste incineration pollution control standard GB18484 clearly requires that the temperature of flue gas of the incinerator cannot be lower than 1100 ℃, and the temperature control interval of a secondary combustion chamber is 1100-1150 ℃ in practical operation. The characteristic of dangerously giving up has decided that its material constitutes more complicacy, and mud, oilcloth, medicine, active carbon, waste liquid etc. all are the material that the useless incineration device of danger needs to handle, and these materials can produce a large amount of dusts when burning, and the temperature of 1200 ℃ or so in addition can form complicated operating mode.
For an incinerator, energy control is cost control, and whether fuel is fully combusted in the combustion process can be judged by analyzing the oxygen content in flue gas. The oxygen content of the flue gas is in an ideal region of 6-8 percent, which shows that the fuel consumption condition in the incineration process is ideal and the combustion is sufficient. Outside this range indicates a fuel waste or deficiency that is detrimental to fuel cost control or exhaust emissions and requires timely adjustment. It can be seen that the timely measurement of the oxygen content of the flue gas in the incinerator is crucial to the whole incineration production line.
At present, a zirconium oxide analyzer is a high-temperature oxygen measurement scheme with more applications and lower cost in the market. The principle is that when the temperature of the inner side and the outer side of a zirconia tube is higher than 700 ℃, the inner side and the outer side of the zirconia tube are contacted with gases with different oxygen partial pressures, the zirconia tube becomes an oxygen concentration difference battery, oxygen ionization and reduction can occur on two electrodes, finally, oxygen potentials E are generated on the two electrodes, and the oxygen potentials E can obtain the oxygen concentration of the gas to be detected according to the Nernst equation and the known oxygen concentration of reference gas.
Zirconia is with low costs, uses extensively, and the industry generally adopts the sampling tube to cut straightly, and this kind of mode of probe placement in sampling tube afterbody, but this kind of mounting means has blockked up, and difficult clearance, the dead time scheduling problem fast. Especially under the high-temperature high-dust and flue gas of this kind of high temperature of dangerously useless burning mix with moisture operating mode, the zirconia probe is blockked up very easily to the dust, leads to zirconia can't continuous stable operation. According to the actual use condition, the zirconia directly measured by the tail probe can only be used for 3 hours and can only be disassembled and cleaned, and the use efficiency is influenced.
SUMMERY OF THE UTILITY MODEL
Therefore, the to-be-solved technical problem of the utility model lies in overcoming the technical problem that high temperature oxygen is low in the measurement among the prior art to a flue gas oxygen content measuring device that can not block up under the operating mode of the high dust of high temperature, and can continuous operation is provided.
In order to solve the technical problem, the utility model discloses a technical scheme as follows:
the utility model provides a flue gas oxygen content measuring device, it includes: the sampling tube is provided with a sampling channel, and the sampling channel is provided with a bending structure; the oxygen content analyzer is arranged on the side wall of the sampling tube and is communicated with the sampling channel; wherein the oxygen content analyzer is positioned behind the bending structure.
In the device for measuring the oxygen content in the flue gas, the sampling channel comprises a sample inlet channel and a sample outlet channel, and the sample inlet channel and the sample outlet channel are respectively positioned at two sides of the bending structure; the oxygen content analyzer is connected with the sample outlet channel.
Among the above-mentioned flue gas oxygen content measuring device, have in the sampling tube with the axis parallel arrangement's of sampling tube separator, the separator will sampling channel separates into sampling channel and appearance passageway of appearing.
In the above-mentioned flue gas oxygen content measuring device, the one end of sampling tube has the toper end, the toper end includes introduction port and appearance mouth.
In the device for measuring the oxygen content in the flue gas, the other end of the sampling tube is respectively connected with two compressed air tubes which respectively blow the sampling channel and the sample outlet channel in a timing pulse mode.
In the above-mentioned flue gas oxygen content measuring device, each compressed air pipe is provided with an electromagnetic valve.
In the device for measuring the oxygen content in the flue gas, the sampling tube is provided with a side branch channel, and the side branch channel is positioned on the side wall of the sample outlet channel; the oxygen content analyzer is inserted into the bypass channel.
In the above device for measuring oxygen content in flue gas, one end of the oxygen content analyzer is provided with a filter.
In the above-mentioned flue gas oxygen content measuring device, the end face of the end of the oxygen content analyzer having the filter is parallel to the direction of the air flow in the sample outlet channel.
In the above flue gas oxygen content measuring device, the oxygen content analyzer is a zirconia analyzer.
The utility model discloses technical scheme has following advantage:
1. the utility model provides a flue gas oxygen content measuring device, be particularly useful for the measurement of the high dust flue gas oxygen content of second combustion chamber export high temperature of hazardous waste incineration processing trade, it includes sampling tube and oxygen content analysis appearance, the sampling tube has sampling channel, and sampling channel wherein has bending structure; the oxygen content analyzer is arranged on the side wall of the sampling tube, communicated with the sampling channel and positioned behind the bending structure, the sampling path of the smoke oxygen content measuring device is improved, the sampling port of the oxygen content analyzer is arranged behind the bending structure with small smoke impact, most of high-temperature dust is discharged after the sampling tube circulates for a circle, the circulating pipeline is not blocked and is smooth, and dust accumulation caused by the probe head at the tail part of the sampling tube in the traditional installation scheme is eliminated.
2. In the device for measuring the oxygen content in the flue gas, a filter is arranged at one end of an oxygen content analyzer, so that dust carried in the flue gas can not pass through the filter, and the dust is prevented from accumulating at a probe of the oxygen content analyzer; furthermore, the end face of one end, provided with the filter, of the oxygen content analysis is parallel to the direction of the air flow in the sample outlet channel, the mode of sampling from the side of the probe can avoid the impact of the air flow with dust to cause the retention of the dust, and the accumulation of high-temperature dust can be better solved.
3. The utility model provides an among the flue gas oxygen content measuring device, be connected with two compressed air pipes respectively on the top of sampling tube, it can do respectively advance kind passageway and play appearance passageway and provide high-pressure gas, because under the hydrous operating mode of high dust and flue gas, the dust is piled up speed comparatively fast or the clearance is more frequent, consequently, adopts foretell two compressed air pipe automatic timing jetting, carries out the timing pulse jetting to appearance gas intake pipe and appearance gas outlet duct respectively, can automatic effectual dust of carrying on sweep to the dust caking after blockking up clears up.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of a smoke content measuring device provided by an embodiment of the present invention;
description of reference numerals:
1-sampling tube; 11-a sample introduction channel; 12-a sample outlet channel; 13-a separator; 14-a first flange; 15-a side branch channel; 16-a second flange; 2-a first compressed air pipe; 21-a first solenoid valve; 3-a second compressed air pipe; 31-a second solenoid valve; 4-zirconia analyzer; 41-a filter; 5-furnace wall of the second combustion chamber; 51-second combustion chamber hearth.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.
Example 1
As shown in fig. 1, the present embodiment provides a flue gas oxygen content measuring device, which is particularly suitable for measuring the oxygen content of the high-temperature and high-dust flue gas at the outlet of the secondary combustion chamber in the hazardous waste incineration disposal industry, however, the above-mentioned application is not a limitation to the specific mode of the application scope of the present invention. The device for measuring the oxygen content of the flue gas comprises a sampling tube 1 and a zirconia analyzer 4 serving as an oxygen content analyzer, wherein a sampling channel is arranged in the sampling tube 1, and the sampling channel has a bending structure; preferably, the main body of the sampling tube 1 is a straight tube structure, a separator 13 arranged parallel to the axis of the sampling tube is arranged in the sampling tube 1, and the separator 13 divides the sampling channel into a sample inlet channel 11 and a sample outlet channel 12; the partition is preferably integrally formed with the coupon; the partition 13 extends from the nozzle of the sampling tube to the tail part, and is not closed at the tail part, that is, at the tail part of the sampling tube 1, the sampling channel 11 is communicated with the sampling channel 12, and the bent structure is formed at the tail part; the zirconia analyzer 4 is arranged on the side wall of the sampling tube 1 and is communicated with the sampling channel; the zirconia analyzer 4 is located behind the bending structure, that is, the zirconia analyzer 4 is disposed on the sampling tube wall on one side of the sampling channel 12, that is, the oxygen content analyzer is connected to the sampling channel.
The flue gas oxygen content measuring device that this embodiment provided improves the sampling route, and the setting of the sample connection with oxygen content analysis appearance is behind the little local bending structure of flue gas impact, and most high temperature dust is discharged after the sample tube inner loop round like this, and the circulation pipeline does not have the separation very unobstructed, has just so eliminated that this kind of detecting head of traditional mounting scheme and has piled up at the dust that the sampling tube afterbody led to the fact.
In a preferred embodiment, in the above-mentioned device for measuring oxygen content in flue gas, one end of the sampling tube 1 has a tapered end, i.e. the tube mouth is a tapered structure, and under the separation of the above-mentioned partition 13, the tapered end is divided into a sample inlet and a sample outlet. The device for measuring the oxygen content in the flue gas provided by the embodiment can pass through the furnace wall 4 of the secondary combustion chamber when in use, so that one end of the pipe opening enters the hearth 51 of the secondary combustion chamber, wherein the sample inlet of the conical end can face the flow direction of the flue gas, and the flue gas is conveniently guided into the sampling pipe. In particular, the sampling tube 1 can be fixed to the second furnace wall 5 by means of a first flange 14.
In a preferred embodiment, in the above apparatus for measuring oxygen content in flue gas, the sampling tube 1 has a side branch channel 15, and the side branch channel 15 is located on a side wall of the sample outlet channel; wherein the zirconia analyzer 4 is inserted into the bypass channel 15, the filter 4 is provided at one end of the zirconia analyzer 4, the filter 4 is preferably a polymer filter, and the end face of the zirconia analyzer 4 having one end of the filter 4 is parallel to the direction of the gas flow in the sample outlet channel. In the device for measuring the oxygen content in flue gas provided by the embodiment, one end of the oxygen content analyzer is provided with the filter, so that dust carried in the flue gas cannot pass through the filter, and the accumulation of the dust at the probe of the oxygen content analyzer is prevented; furthermore, the end face of one end, provided with the filter, of the oxygen content analysis is parallel to the direction of the air flow in the sample outlet channel, the mode of sampling from the side of the probe can avoid the impact of the air flow with dust to cause the retention of the dust, and the accumulation of high-temperature dust can be better solved.
As a preferred embodiment, in the above-mentioned flue gas oxygen content measuring device, the other end face of the sampling tube is closed, and the closed one end is connected with two compressed air tubes, which are the first compressed air tube 2 and the second compressed air tube 3 respectively, and the two compressed air tubes can be respectively provided with the first electromagnetic valve 21 and the second electromagnetic valve 31, which respectively control the two compressed air tubes to perform the timing pulse injection on the sample introduction channel and the sample discharge channel. Among the oxygen content measuring device that this embodiment provided, be connected with two compressed air pipes respectively on the top of sampling tube 1, can do respectively advance kind passageway and play appearance passageway and provide high-pressure gas, because under the hydrous operating mode of high dust and flue gas, the dust is piled up speed comparatively fast or the clearance is more frequent, consequently, adopt foretell two compressed air pipe automatic timing jetting, carry out the time pulse jetting to appearance gas intake pipe and appearance gas outlet duct respectively, can automatic effectual dust of carrying on sweeps to dust caking after blockking up clears up.
The flue gas oxygen content measuring device that this embodiment provided has changed probe sample position, and to the probe of former sampling tube afterbody installation, the side installation of shifting to the sample gas pipeline of giving vent to anger has increased the filter screen simultaneously, prevents that the dust from invading and blockking up the probe. Meanwhile, double blowing pipes are arranged, independent electromagnetic valves are additionally arranged on the blowing pipes, PLC (programmable logic controller) control electromagnetic valves of the incineration line are used for carrying out timed blowing every 30 minutes, and the medium in the blowing pipes is 6 kilograms of clean compressed air. According to the later use effect, the measurement curve of the oxygen content fluctuates when the zirconia is blown every 30 minutes, but the normal use can be recovered within 1 minute after the blowing, and finally the scheme realizes the continuous and stable measurement of the zirconia under the high-temperature and high-dust working condition of the incinerator.
The improved oxygen measuring instrument firstly solves the problems that a zirconia probe is easy to block and difficult to normally use under the high-temperature and high-dust working condition of a secondary combustion chamber of an incinerator. Meanwhile, the problem of cleaning the blocked probe is solved. Because the zirconia sampling tube can appear dust in this kind of operating mode and pile up certainly, so double-barrelled automatic timing jetting function is direct to start from the angle that prevents the dust and pile up, and the blowing time of setting for 30 minutes can be just cleared up fast at the dust and pile up the initial stage, just so can guarantee the continuous steady operation of zirconia. Through this kind of mode of setting up, can make this kind of low-cost oxygen measuring instrument of zirconia use in the danger waste burn under this kind of high-temperature high-dust's the complicated operating mode.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.
Claims (10)
1. The utility model provides a flue gas oxygen content measuring device which characterized in that includes:
the sampling tube is provided with a sampling channel, and the sampling channel is provided with a bending structure;
the oxygen content analyzer is arranged on the side wall of the sampling tube and is communicated with the sampling channel; wherein the oxygen content analyzer is positioned behind the bending structure.
2. The device for measuring the oxygen content in the flue gas according to claim 1, wherein the sampling channel comprises a sample inlet channel and a sample outlet channel, and the sample inlet channel and the sample outlet channel are respectively positioned on two sides of the bending structure; the oxygen content analyzer is connected with the sample outlet channel.
3. The apparatus according to claim 2, wherein a partition is disposed in the sampling tube in parallel with the axis of the sampling tube, and the partition divides the sampling channel into the sampling channel and the sample outlet channel.
4. The flue gas oxygen content measuring device of claim 3, wherein one end of the sampling tube has a tapered end, and the tapered end comprises a sample inlet and a sample outlet.
5. The device for measuring the oxygen content in the flue gas according to claim 4, wherein two compressed air pipes are respectively connected to the other ends of the sampling pipes, and are used for respectively carrying out timed pulse injection on the sample introduction channel and the sample discharge channel.
6. The flue gas oxygen content measuring device according to claim 5, wherein each compressed air pipe is provided with a solenoid valve.
7. The flue gas oxygen content measuring device according to any one of claims 3 to 6, wherein the sampling tube has a side branch passage which is located on the side wall at the sample outlet passage; the oxygen content analyzer is inserted into the bypass channel.
8. The flue gas oxygen content measuring device according to claim 7, wherein one end of the oxygen content analyzer is provided with a filter.
9. The apparatus according to claim 8, wherein the end face of the oxygen content analyzer having one end of the filter is parallel to the direction of the air flow in the sample outlet channel.
10. The flue gas oxygen content measuring device of claim 7, wherein the oxygen content analyzer is a zirconia analyzer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023240506.XU CN214703482U (en) | 2020-12-29 | 2020-12-29 | Smoke oxygen content measuring device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023240506.XU CN214703482U (en) | 2020-12-29 | 2020-12-29 | Smoke oxygen content measuring device |
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| CN214703482U true CN214703482U (en) | 2021-11-12 |
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| CN202023240506.XU Active CN214703482U (en) | 2020-12-29 | 2020-12-29 | Smoke oxygen content measuring device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114992665A (en) * | 2022-05-25 | 2022-09-02 | 宜兴市宏业保温工程有限公司 | Power station boiler temperature dust monitoring equipment and monitoring method thereof |
| CN116773753A (en) * | 2023-08-17 | 2023-09-19 | 北京牡丹联友环保科技股份有限公司 | Smoke monitor |
-
2020
- 2020-12-29 CN CN202023240506.XU patent/CN214703482U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114992665A (en) * | 2022-05-25 | 2022-09-02 | 宜兴市宏业保温工程有限公司 | Power station boiler temperature dust monitoring equipment and monitoring method thereof |
| CN114992665B (en) * | 2022-05-25 | 2023-08-11 | 宜兴市宏业保温工程有限公司 | Power station boiler temperature dust monitoring equipment and monitoring method thereof |
| CN116773753A (en) * | 2023-08-17 | 2023-09-19 | 北京牡丹联友环保科技股份有限公司 | Smoke monitor |
| CN116773753B (en) * | 2023-08-17 | 2024-01-26 | 北京牡丹联友环保科技股份有限公司 | Smoke monitor |
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Effective date of registration: 20220808 Address after: 1610, 16th floor, 101-2-16th floor, building 21, Rongda Road, Chaoyang District, Beijing 100012 Patentee after: Zhongguancun Technology Leasing Co.,Ltd. Address before: Room 807d, 8th floor, No. 2, Shangdi Information Road, Haidian District, Beijing 100085 (floors 1-8, building D, No. 2-2, Beijing Shichuang high tech Development Corporation) Patentee before: BEIJING QI YUE ENVIRONMENTAL PROTECTION TECHNOLOGY CO.,LTD. |
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