CN209745930U - Flue gas hygrometer with drainage function - Google Patents
Flue gas hygrometer with drainage function Download PDFInfo
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- CN209745930U CN209745930U CN201920467092.2U CN201920467092U CN209745930U CN 209745930 U CN209745930 U CN 209745930U CN 201920467092 U CN201920467092 U CN 201920467092U CN 209745930 U CN209745930 U CN 209745930U
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Abstract
The utility model discloses a flue gas hygrometer with a drainage function, which comprises a flange pipe; a probe used for sensing the humidity of the flue gas is arranged in one end of the flange pipe, the probe comprises an inner pipe and a humidity sensor, one end of the inner pipe is hermetically connected with the flange pipe, the other end of the inner pipe is close to the middle position of the flange pipe, and the humidity sensor is arranged at the other end of the inner pipe; a blind flange is integrally formed at one end of the flange pipe, which is far away from the probe, and an air inlet hole and an air outlet hole are arranged on the blind flange; the blind flange is also connected with a drainage mechanism, the drainage mechanism comprises a neck flange and a drainage pipe, the blind flange is detachably connected with the neck flange, an air inlet hole and an air outlet hole are respectively communicated with the hollow middle part of the inner cavity of the flange pipe and the neck flange, one end of the drainage pipe is arranged in the hollow middle part of the neck flange in a penetrating way, the end is detachably connected with the air inlet hole, and the port of the other end is an oblique port. The utility model discloses guaranteed flue gas hygrometer's humidity transducer well and measured the rate of accuracy of flue gas humidity at the during operation.
Description
Technical Field
The utility model relates to a flue gas hygrometer technical field specifically is a flue gas hygrometer with drainage function is related to.
background
Flue gas is a mixture of gas and smoke dust, and is the main cause of pollution to the atmosphere of residents. The components of the flue gas are complex, the gas comprises SO 2, CO 2 hydrocarbon, nitrogen oxide and the like, and the smoke dust comprises ash, coal particles, oil drops, high-temperature cracking products and the like of the fuel. Therefore, the pollution of the flue gas to the environment is the composite pollution of various poisons.
Acute poisoning may be caused by high smoke concentration, manifested as cough, pharyngalgia, chest distress, asthma, headache, eye stabbing pain, etc., and death may occur in severe cases. The most common is chronic poisoning, which causes irritation to respiratory mucosa to cause chronic bronchitis, and the smoke contains strong carcinogens such as benzopyrene. Carbon monoxide loses its oxygen-carrying function mainly by binding to hemoglobin and can cause death in severe cases. After inhalation, oxynitrides irritate the respiratory mucosa, causing pneumonia. The carbon-oxygen compounds are mainly polycyclic aromatic hydrocarbons, have carcinogenic effect, can stimulate skin and mucosa, especially form photochemical smog with nitrogen oxides, and have stronger irritation, so the life can be threatened by serious people.
The flue gas humidity is one of the important parameters of the flue gas working condition, and has great influence on a flue gas treatment system. Therefore, the method has a quite positive significance for the research on the flue gas moisture content measurement technology.
At present, the temperature of the flue gas discharged under different working conditions is high or low, and the temperature of the flue gas under some working conditions exceeds 180 ℃ or even exceeds 200 ℃ and 300 ℃. Most probes for measuring the humidity of the flue gas in the industry at present are composed of a porous protective cover and a humidity sensor, signals of the humidity sensor are very sensitive to temperature, the signal output difference of the same humidity at different temperatures is large, the relative humidity of the flue gas can be reduced along with the increase of the temperature, the resolution ratio of the sensor can be greatly reduced, and the measured humidity value has large fluctuation and deviation. At present, when the humidity of the flue gas needs to be measured, the probe is generally directly inserted into a chimney for measurement, and the temperature of the working environment of the humidity sensor is difficult to control after the probe is inserted into the chimney. The temperature of the flue gas under most operating modes can exceed 180 ℃, and the humidity sensor can not work under the high temperature of about 180 ℃, thereby causing the humidity sensor to lose efficacy and even damage frequently, and further greatly reducing the service life of the humidity sensor.
SUMMERY OF THE UTILITY MODEL
To the problem that prior art exists above, the utility model aims at providing a flue gas hygrometer with drainage function, it adopts short probe structure, makes humidity transducer not directly go deep into the chimney and just can measure flue gas humidity to guarantee the operational environment suitability when humidity transducer measures the flue gas and can guarantee humidity transducer effectively and measure the rate of accuracy of flue gas humidity.
In order to realize the purpose, the technical scheme of the utility model is that: a flue gas humidity meter with a drainage function comprises a flange pipe; a probe used for sensing the humidity of the flue gas is arranged in one end of the flange pipe, the probe comprises an inner pipe and a humidity sensor, one end of the inner pipe is hermetically connected with the flange pipe, the other end of the inner pipe is close to the middle position of the flange pipe, and the humidity sensor is arranged at the other end of the inner pipe; a blind flange is integrally formed at one end of the flange pipe, which is far away from the probe, and an air inlet hole and an air outlet hole are formed in the blind flange; the blind flange still is connected with a drainage mechanism, drainage mechanism includes hubbed flange and honeycomb duct, the blind flange with the connection can be dismantled to the hubbed flange, the inlet port with the venthole respectively with the flange tube inner chamber with the hollow middle part of hubbed flange communicates with each other, the one end of honeycomb duct is worn to establish in the hollow middle part of hubbed flange and this end with the inlet port can be dismantled and be connected, and the port of the other end is the bevel connection.
As a specific implementation manner, the probe further includes a heating mechanism for heating the probe, the heating mechanism is disposed between the inner tube and the humidity sensor, one end of the heating mechanism is connected to the inner tube, and the other end of the heating mechanism is connected to the humidity sensor. The heating mechanism is arranged, so that the probe can generate heat, and the phenomenon of condensation can not occur when the smoke contacts the probe.
furthermore, the probe also comprises a filter connected with the heating mechanism, and the humidity sensor is covered by the filter and the heating mechanism. Set up the filter and can make the flue gas obtain filtering before contacting humidity transducer, prevent that particulate matter and impurity from contacting humidity transducer and influencing humidity transducer measuring accuracy.
Further, a first sealing ring is arranged at the joint of the filter and the heating mechanism. The first sealing ring is arranged to prevent unfiltered smoke from entering the filter.
as a specific embodiment, a first flange is protruded outwards around the opening of the end of the air inlet hole far away from the probe; and a second flange is outwards protruded on the outer wall of the flow guide pipe, and one end face of the second flange is propped against the top end face of the first flange. The arrangement of the first flange and the second flange can enable the flow guide pipe to be better supported, and the stability of the flow guide pipe is improved.
Further, a second sealing ring is arranged at the contact position of the first flange and the second flange. The second sealing ring is arranged to prevent external air from entering the flange pipe from a gap between the outer wall of the draft tube and the first flange, so that the flow of smoke inside the flange pipe is influenced.
Furthermore, a gland is arranged on the outer wall of the flow guide pipe, a third inward-concave flange is arranged at one end of the gland, the end face of one end of the third flange props against the end face of the end, far away from the first flange, of the second flange, and the gland is detachably connected with the first flange. The gland is sleeved on the guide pipe and detachably connected with the first flange, so that the guide pipe is firmer and the guide pipe can be conveniently mounted and dismounted.
As a specific embodiment, an asbestos gasket is provided between the blind flange and the necked-in flange. The asbestos gasket is arranged, so that a sealing effect can be achieved between the neck flange and the blind flange, and inaccurate humidity measurement caused by exchange between smoke and atmosphere is prevented.
As a specific embodiment, the diameter of the air inlet hole is larger than that of the air outlet hole; the air outlet holes are three and distributed in an arc shape and are respectively opposite to the air inlet holes. Be arc ground setting with the venthole that three diameter ratio inlet port diameter is little to it is more reasonable to be relative with the inlet port respectively can make the inside flue gas of flange flow, thereby makes the flue gas be difficult to block up and can not get the discharge in the flange and cause the instrument to damage, and can guarantee that there is sufficient flue gas in the flange inside to supply the humidity that the probe detected the flue gas.
The utility model has the advantages that:
The utility model discloses a set up the probe in the flange pipe to set up a drainage mechanism who is used for the drainage flue gas in the one end of flange pipe, make the flue gas enter into the probe in the flange pipe naturally under the drainage of honeycomb duct and inlet port, consequently because the venthole is outer for negative pressure state, so the flue gas flows toward the direction of venthole, thereby makes the flue gas at the inside circulation circuit that forms of flange pipe, makes humidity transducer can carry out humidity measurement to the flue gas uninterruptedly. Moreover, because the humidity sensor is positioned in the middle of the flange pipe, if the temperature of the flue gas is too high, a buffer area is formed in the distance from the inclined opening of the draft tube to the probe, so that the temperature of the flue gas can be reduced to the proper range of the humidity sensor when the temperature of the flue gas flows in the distance, and the measurement accuracy of the humidity sensor cannot be influenced; meanwhile, the humidity sensor does not directly go deep into the chimney, so the suitability of the working environment of the humidity sensor is ensured, and the measurement accuracy is also ensured. Because the blind flange, the flange with the neck and the guide pipe are detachably connected, the installation and the disassembly are very convenient, and the convenience in maintaining the instrument and transporting is greatly improved. And the gas inlet of the draft tube is arranged in an inclined opening mode, so that the flue gas can be introduced better and faster. Therefore, the utility model discloses avoid the flue gas in the humidity transducer direct contact chimney and lead to the inaccuracy of humidity transducer measurement humidity, easily maintenance personal maintains the instrument simultaneously.
Drawings
Fig. 1 is a front view of the present invention;
FIG. 2 is a schematic cross-sectional view of the structure of FIG. 1;
Fig. 3 is a schematic structural view of the blind flange of the present invention;
Fig. 4 is a schematic structural view of the neck flange of the present invention.
reference numerals
1. A flange pipe; 11. a blind flange; 111. an air inlet; 112. an air outlet; 113. a first flange; 2. a probe; 21. a humidity sensor; 22. a heating mechanism; 23. a filter; 4. a necked-in flange; 5. a flow guide pipe; 51. a second flange; 52. a bevel opening; 7. a first seal ring; 8. a second seal ring; 9. a gland; 91. a third flange; 10. an asbestos gasket; 100. an inner tube.
Detailed Description
The invention will be further elucidated with reference to the drawings and the embodiments, which are exemplary only and do not limit the scope of the invention.
As shown in fig. 1-4, a flue gas humidity meter with a drainage function comprises a flange pipe 1; a probe 2 for sensing the humidity of the flue gas is arranged in one end of the flange pipe 1, the probe 2 comprises an inner pipe 100 and a humidity sensor 21, one end of the inner pipe 100 is hermetically connected with the flange pipe 1, the other end of the inner pipe is close to the middle position of the flange pipe 1, and the humidity sensor 21 is arranged at the other end of the inner pipe; a blind flange 11 is integrally formed at one end of the flange pipe 1 far away from the probe 2, and an air inlet hole 111 and an air outlet hole 112 are formed on the blind flange 11; blind flange 11 still is connected with a drainage mechanism, drainage mechanism includes hubbed flange 4 and honeycomb duct 5, blind flange 11 can dismantle with hubbed flange 4 and be connected, specifically, blind flange 11 is through bolted connection with hubbed flange 4, inlet port 111 and venthole 112 communicate with each other with flange pipe 1 inner chamber and the hollow middle part of hubbed flange 4 respectively, honeycomb duct 5's one end is worn to establish in the hollow middle part of hubbed flange 4 and this end can dismantle with inlet port 111 and be connected, specifically, 32 threaded connection of inlet port are remained to honeycomb duct 5, the port of honeycomb duct 5's the other end is bevel connection 52, preferably, honeycomb duct 5's length generally is 0.8m-2m, length can customize according to the chimney diameter of difference.
The probe 2 further comprises a heating mechanism 22 for heating the probe, the heating mechanism 22 is arranged between the inner tube 100 and the humidity sensor 21, one end of the heating mechanism 22 is connected with the inner tube 100, and the other end of the heating mechanism 22 is connected with the humidity sensor 21.
the probe 2 further comprises a filter 6 connected to the heating means 22, the filter 6 and the heating means 22 enclosing the humidity sensor 21.
A first sealing ring 7 is provided at the connection between the filter 6 and the heating means 22.
A first flange 113 is protruded outwards at the periphery of the opening of the end of the air inlet hole 111 far away from the probe 2; a second flange 51 is projected outward from the outer wall of the draft tube 5, and one end surface of the second flange 51 abuts against the top end surface of the first flange 113. A second seal ring 8 is provided at the contact point of the first flange 113 and the second flange 51. The outer wall of the draft tube 5 is provided with a gland 9, one end of the gland 9 is provided with a third flange 91 which is inwards concave, the end face of one end of the third flange 91 props against the end face of the end of the second flange 51 far away from the first flange 113, the gland 9 is detachably connected with the first flange 113, and specifically, the inner wall of the gland 9 is in threaded connection with the outer wall of the first flange 113.
An asbestos gasket is arranged between the blind flange 11 and the neck flange 4.
The diameter of the inlet hole 111 is larger than that of the outlet hole 112; the number of the air outlet holes 112 is three, and the three air outlet holes 112 are distributed in an arc shape and are respectively opposite to the air inlet holes 111.
The utility model discloses an use flow is introduced below to understand the utility model discloses:
1. And (3) installing the flue gas hygrometer, wherein the necked flange and the flow guide pipe are positioned in the chimney, the flange pipe is positioned outside the chimney, and the air outlet is communicated with the chimney. The side with longer length of the guide pipe is positioned above the guide pipe, and the side with shorter length is positioned below the guide pipe.
2. the instrument is started and the heating mechanism works to heat the humidity sensor and the filter.
3. when the chimney rises, the flue gas naturally flows into the guide pipe after passing through the guide pipe, and then enters the flange pipe through the air inlet.
4. the flue gas flows to the probe.
5. the flue gas enters the filter after passing through the filter for filtering particles and impurities and contacts with the humidity sensor, and the humidity sensor detects the humidity of the flue gas in real time.
6. the smoke flows outwards under the influence of the negative pressure outside the air outlet hole and is finally retained in the chimney again through the air outlet hole. The smoke of the air inlet hole and the air outlet hole continuously enters and is discharged, so that a loop is formed, and the humidity sensor can uninterruptedly detect the humidity of the smoke.
the present invention is not limited to the above embodiment, and if various modifications or variations of the present invention do not depart from the spirit and scope of the present invention, they are intended to be covered if they fall within the scope of the claims and the equivalent technology of the present invention.
Claims (9)
1. The utility model provides a flue gas hygrometer with drainage function which characterized in that:
Comprises a flange pipe; a probe used for sensing the humidity of the flue gas is arranged in one end of the flange pipe, the probe comprises an inner pipe and a humidity sensor, one end of the inner pipe is hermetically connected with the flange pipe, the other end of the inner pipe is close to the middle position of the flange pipe, and the humidity sensor is arranged at the other end of the inner pipe; a blind flange is integrally formed at one end of the flange pipe, which is far away from the probe, and an air inlet hole and an air outlet hole are formed in the blind flange; the blind flange still is connected with a drainage mechanism, drainage mechanism includes hubbed flange and honeycomb duct, the blind flange with the connection can be dismantled to the hubbed flange, the inlet port with the venthole respectively with the flange tube inner chamber with the hollow middle part of hubbed flange communicates with each other, the one end of honeycomb duct is worn to establish in the hollow middle part of hubbed flange and this end with the inlet port can be dismantled and be connected, and the port of the other end is the bevel connection.
2. The flue gas hygrometer with a drainage function of claim 1, wherein:
The probe also comprises a heating mechanism for heating the probe, the heating mechanism is arranged between the inner tube and the humidity sensor, one end of the heating mechanism is connected with the inner tube, and the other end of the heating mechanism is connected with the humidity sensor.
3. The flue gas hygrometer with a drainage function of claim 2, wherein:
The probe also comprises a filter connected with the heating mechanism, and the humidity sensor is covered by the filter and the heating mechanism.
4. The flue gas hygrometer with a drainage function of claim 3, wherein:
And a first sealing ring is arranged at the joint of the filter and the heating mechanism.
5. The flue gas hygrometer with a drainage function of claim 1, wherein:
A first flange is outwards protruded on the periphery of the opening of one end of the air inlet hole, which is far away from the probe; and a second flange is outwards protruded on the outer wall of the flow guide pipe, and one end face of the second flange is propped against the top end face of the first flange.
6. The flue gas hygrometer with a drainage function of claim 5, wherein:
And a second sealing ring is arranged at the contact position of the first flange and the second flange.
7. the flue gas hygrometer with a drainage function of claim 5, wherein:
The outer wall of the flow guide pipe is provided with a gland, one end of the gland is provided with a third flange which is inwards concave, the end face of one end of the third flange props against the end face of the end, far away from the first flange, of the second flange, and the gland is detachably connected with the first flange.
8. The flue gas hygrometer with a drainage function of claim 1, wherein:
an asbestos gasket is arranged between the blind flange and the neck flange.
9. The flue gas hygrometer with a drainage function of claim 1, wherein:
The diameter of the air inlet hole is larger than that of the air outlet hole; the air outlet holes are three and distributed in an arc shape and are respectively opposite to the air inlet holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920467092.2U CN209745930U (en) | 2019-04-04 | 2019-04-04 | Flue gas hygrometer with drainage function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920467092.2U CN209745930U (en) | 2019-04-04 | 2019-04-04 | Flue gas hygrometer with drainage function |
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| Publication Number | Publication Date |
|---|---|
| CN209745930U true CN209745930U (en) | 2019-12-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920467092.2U Active CN209745930U (en) | 2019-04-04 | 2019-04-04 | Flue gas hygrometer with drainage function |
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| Country | Link |
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| CN (1) | CN209745930U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113686507A (en) * | 2021-08-31 | 2021-11-23 | 鄂尔多斯市君正能源化工有限公司热电分公司 | System and method for monitoring leakage of thermal generator set |
| CN114441287A (en) * | 2021-12-13 | 2022-05-06 | 沪东中华造船(集团)有限公司 | Temporary replacing device for expansion joint of low-temperature pipe and using method |
| US11612670B2 (en) | 2020-05-18 | 2023-03-28 | Wangs Alliance Corporation | Germicidal lighting |
-
2019
- 2019-04-04 CN CN201920467092.2U patent/CN209745930U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11612670B2 (en) | 2020-05-18 | 2023-03-28 | Wangs Alliance Corporation | Germicidal lighting |
| CN113686507A (en) * | 2021-08-31 | 2021-11-23 | 鄂尔多斯市君正能源化工有限公司热电分公司 | System and method for monitoring leakage of thermal generator set |
| CN114441287A (en) * | 2021-12-13 | 2022-05-06 | 沪东中华造船(集团)有限公司 | Temporary replacing device for expansion joint of low-temperature pipe and using method |
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