CN209911067U - High-humidity waste gas online detection device - Google Patents
High-humidity waste gas online detection device Download PDFInfo
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- CN209911067U CN209911067U CN201920564267.1U CN201920564267U CN209911067U CN 209911067 U CN209911067 U CN 209911067U CN 201920564267 U CN201920564267 U CN 201920564267U CN 209911067 U CN209911067 U CN 209911067U
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Abstract
The application discloses a high-humidity waste gas online detection device which comprises a filter, a dryer, a mixer, an air suction pump, a detector and a first external connecting pipe; the air inlet of the filter is used for receiving high-humidity waste gas, the air inlet of the dryer is connected with the air outlet of the filter through a pipeline, the mixer is provided with two air inlets and one air outlet, the two air inlets of the mixer are respectively connected with the air outlet of the dryer and the first external connecting pipe, the air outlet of the mixer is directly or indirectly connected with the air inlet of the air pump, and the air outlet of the air pump is connected with the air inlet of the detector; the first external connecting pipe is a channel for external fresh air to enter the mixer.
Description
Technical Field
The utility model relates to a gaseous deodorization field especially relates to a high wet waste gas on-line measuring device.
Background
With the development of socio-economic, the population is increased rapidly, and the atmospheric environment of the earth is worsened gradually. In recent years, people are dissatisfied with the emission of some harmful gases, particularly odor emitted by some malodorous gases, the original work of preventing and treating air pollution can not meet the requirements of people, and the attention of people is gradually paid to malodorous control. Malodour is a perceived public nuisance and has become one of the seven environmental hazards in the world. The malodorous substances are more than 40 to 50 tens of thousands, the main components of the malodorous substances are sulfide, nitride, oxide, halogen derivatives and various hydrocarbons, and the harm to human bodies is second place in seven environmental pollutions and is second to noise.
In recent years, due to the continuous development of urban construction and the reduction of land resources, the position of an urban sewage treatment plant is closer to a residential area, and malodorous gas discharged in the sewage treatment process inevitably becomes a main emission source of the urban malodorous gas. In a sewage treatment plant, each unit of sewage treatment generates offensive odors from a pretreatment apparatus to a biochemical treatment apparatus, and its main offensive odor components are sulfur compounds such as hydrogen sulfide and methyl mercaptan. Odor pollution control has become an important component in the design of sewage and sludge treatment engineering which is not negligible.
In the technology of treating the odor, an important link is an on-line gas detector. In the deodorization process, people need to know the real-time removal effect of the deodorization process on malodorous gas at any time, so an online detector is required to be used for detecting the gas. However, the humidity of the gas is often relatively high, and the online detector is easily broken down in a high-humidity environment and cannot normally monitor the gas, which greatly affects the understanding and the grasp of the deodorization process effect.
SUMMERY OF THE UTILITY MODEL
The utility model aims at the above problem, a high wet waste gas on-line measuring device is proposed.
The utility model adopts the following technical scheme:
a high-humidity waste gas online detection device comprises a filter, a dryer, a mixer, an air pump, a detector and a first external connecting pipe; the air inlet of the filter is used for receiving high-humidity waste gas, the air inlet of the dryer is connected with the air outlet of the filter through a pipeline, the mixer is provided with two air inlets and one air outlet, the two air inlets of the mixer are respectively connected with the air outlet of the dryer and the first external connecting pipe, the air outlet of the mixer is directly or indirectly connected with the air inlet of the air pump, and the air outlet of the air pump is connected with the air inlet of the detector; the first external connecting pipe is a channel for external fresh air to enter the mixer.
The working principle of the device is as follows, firstly, the high-humidity waste gas enters the filter to filter out dust substances, then enters the dryer to remove moisture, then is mixed with fresh air in the mixer, then is pumped into the detector by the air pump, and then is discharged after the detector detects the gas.
This device passes through the preliminary treatment effect of filter and desicator, and dust and moisture in the high wet exhaust gas of direct filtering can not influence the detector, and it is more convenient to detect.
Optionally, the air-assisted mixing device further comprises a three-way switch and a second external connection pipe, two ports of the three-way switch are respectively connected with the air outlets of the air pump and the mixer, the second external connection pipe is installed on a third port of the three-way switch, and the second external connection pipe is fresh air.
When the detection of the high-humidity gas is finished, the three-way switch is turned off to be communicated with the mixer, then the three-way switch is turned on to be communicated with the second external connecting pipe and to be communicated with the air suction pump, so that fresh air is pumped into the detector by the air suction pump, the detector can be cleaned by the fresh air, and the detector is well cleaned and detected. It should be noted that the three-way switch and the air pump are always conducted, and no matter the device is in a test gas state or a cleaning state, when in a test state, the three-way switch and the second external connecting pipe are not conducted.
Optionally, a flow meter is arranged on the first external connecting pipe.
The flow meter is used for detecting and adjusting the amount of fresh air entering the mixer through the first external connecting pipe, and the gas subjected to dust removal and dehumidification is mixed with the fresh air, so that the content of sulfide, nitrogen-containing compounds, oxide, halogen derivatives and various hydrocarbons in the mixed gas is reduced, and the concentration of the gas can be ensured not to exceed the detection range of the detector. Simultaneously because install the flowmeter on the first external pipe, can accurately learn the volume of the fresh air who gets into the blender.
Filters in this context include, but are not limited to, plate filters, pleated filters, bag filters, frame filters, modular filters, and the like. The filter 1 is also detachable, and is convenient to clean, replace and maintain.
The dryer includes but is not limited to an atmospheric dryer, a vacuum dryer, a convection dryer, a conduction dryer, a radiation dryer, a dielectric dryer, etc., and the dryer 2 is also detachable to facilitate cleaning and replacement.
The flowmeter can adjust the amount of fresh air in the first external pipe as required to mix with the detection gas in different proportions, so as to adapt to the detection gas with different concentrations, and the protection detector does not exceed the detection range.
The air pumping quantity of the air pump is generally fixed, and the air pump can be replaced by an air pumping quantity adjustable type air pump if needed.
The detector includes, but is not limited to, an electrochemical detector, an infrared detector, an ultraviolet detector, an FID detector, a PID detector, and the like.
Flow meters include, but are not limited to, mass flow meters, rotameters, electromagnetic flow meters, differential pressure flow meters, and the like.
The utility model has the advantages that: through the pretreatment of filter and desicator, dust and moisture in the high wet exhaust gas of direct filtering can not influence the detector, and it is more convenient to detect.
Description of the drawings:
FIG. 1 is a schematic diagram of the structure of an online detection device for high-humidity exhaust gas.
The figures are numbered: 1. the device comprises a filter, 2, a dryer, 3, a mixer, 4, a three-way switch, 5, an air pump, 6, a gas detector, 7, a flow meter, 801, a first external connecting pipe, 802 and a second external connecting pipe.
The specific implementation mode is as follows:
the present invention will be described in detail with reference to the accompanying drawings.
As shown in fig. 1, the online detection device for high-humidity exhaust gas comprises a filter 1, a dryer 2, a mixer 3, an air pump 5, a detector 6 and a first external connection pipe 801; the air inlet of the filter 1 is used for receiving high-humidity waste gas, the air inlet of the dryer 2 is connected with the air outlet of the filter 1 through a pipeline, the mixer 3 is provided with two air inlets and one air outlet, the two air inlets of the mixer 3 are respectively connected with the air outlet of the dryer 2 and the first external connecting pipe 801, the air outlet of the mixer 3 is directly or indirectly connected with the air inlet of the air pump 5, and the air outlet of the air pump 5 is connected with the air inlet of the detector 6; the first external pipe 801 is a passage for external fresh air to enter the mixer 3.
The working principle of the device is as follows, firstly, the high-humidity waste gas enters the filter 1 to filter out dust substances, then enters the dryer 2 to remove moisture, is mixed with fresh air in the mixer 3 and then is pumped into the detector 6 by the air pump 5, and the gas is discharged after being detected by the detector 6.
This device passes through the preliminary treatment effect of filter 1 and desicator 2, and dust and moisture in the high wet waste gas of direct filtering can not influence detector 6, and it is more convenient to detect.
As shown in fig. 1, the air-conditioning system further comprises a three-way switch 4 and a second external connection pipe 802, two ports of the three-way switch 4 are respectively connected with the air outlets of the air pump 5 and the mixer 3, the second external connection pipe 802 is installed on a third port of the three-way switch 4, and the second external connection pipe 802 is fresh air.
When the detection of the high-humidity gas is finished, the three-way switch 4 is turned off to be communicated with the mixer 3, then the three-way switch 4 is turned on to be communicated with the second external connecting pipe 802 and the three-way switch 4 is turned on to be communicated with the air suction pump 5, so that the fresh air is pumped into the detector 6 by the air suction pump 5, the detector 6 can be cleaned by the fresh air, and the detector 6 is well cleaned and detected. It should be noted that the three-way switch 4 and the air pump 5 are always conducted, and no matter the device is in the test gas state or the cleaning state, when in the test state, the three-way switch 4 and the second external connection pipe 802 are not conducted.
As shown in fig. 1, a flow meter 7 is disposed on the first external pipe 801.
The flow meter 7 is used for detecting and adjusting the amount of fresh air entering the mixer 3 through the first external connection pipe 801, and the dedusted and dehumidified gas is mixed with the fresh air, so that the content of sulfide, nitride, oxide, halogen derivative and various hydrocarbons in the mixed gas is reduced, and the concentration of the gas can be ensured not to exceed the detection range of the detector 6. Meanwhile, because the flowmeter 7 is installed on the first external connecting pipe 801, the amount of fresh air entering the mixer 3 can be accurately known.
The filter 1 in this case includes, but is not limited to, a plate filter 1, a pleated filter 1, a bag filter 1, a frame filter 1, a combined filter 1, and the like. The filter 1 is also detachable, and is convenient to clean, replace and maintain.
The dryer 2 includes but is not limited to an atmospheric dryer 2, a vacuum dryer 2, a convection dryer 2, a conduction dryer 2, a radiation dryer 2, a dielectric dryer 2, etc., and the dryer 2 is also detachable, so as to facilitate cleaning and replacement.
The flow meter 7 can adjust the amount of fresh air in the first external connecting pipe 801 as required, so that the fresh air is mixed with the detection gas in different proportions to adapt to the detection gas with different concentrations, and the detection instrument 6 is protected from exceeding the detection range.
The air suction amount of the air suction pump 5 is generally fixed, and the air suction pump 5 can be replaced by an adjustable air suction amount if necessary.
The detector 6 includes, but is not limited to, an electrochemical detector 6, an infrared detector 6, an ultraviolet detector 6, an FID detector 6, a PID detector 6, and the like.
The flow meter 7 includes, but is not limited to, a mass flow meter 7, a rotameter 7, an electromagnetic flow meter 7, a differential pressure flow meter 7, and the like.
The above only is the preferred embodiment of the present invention, not therefore the limit the patent protection scope of the present invention, all applications the equivalent structure transformation made by the contents of the specification and the drawings of the present invention is directly or indirectly applied to other related technical fields, and all the same principles are included in the protection scope of the present invention.
Claims (3)
1. The high-humidity waste gas online detection device is characterized by comprising a filter, a dryer, a mixer, an air suction pump, a detector and a first external connecting pipe; the air inlet of the filter is used for receiving high-humidity waste gas, the air inlet of the dryer is connected with the air outlet of the filter through a pipeline, the mixer is provided with two air inlets and one air outlet, the two air inlets of the mixer are respectively connected with the air outlet of the dryer and the first external connecting pipe, the air outlet of the mixer is directly or indirectly connected with the air inlet of the air pump, and the air outlet of the air pump is connected with the air inlet of the detector; the first external connecting pipe is a channel for external fresh air to enter the mixer.
2. The on-line detection device for high-humidity exhaust gas according to claim 1, further comprising a three-way switch and a second external connection pipe, wherein two ports of the three-way switch are respectively connected with the air outlets of the air pump and the mixer, the second external connection pipe is installed on a third port of the three-way switch, and the second external connection pipe is fresh air.
3. The high-humidity exhaust gas online detection device according to claim 1, wherein a flow meter is disposed on the first external connection pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920564267.1U CN209911067U (en) | 2019-04-23 | 2019-04-23 | High-humidity waste gas online detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920564267.1U CN209911067U (en) | 2019-04-23 | 2019-04-23 | High-humidity waste gas online detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209911067U true CN209911067U (en) | 2020-01-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920564267.1U Active CN209911067U (en) | 2019-04-23 | 2019-04-23 | High-humidity waste gas online detection device |
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| CN (1) | CN209911067U (en) |
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2019
- 2019-04-23 CN CN201920564267.1U patent/CN209911067U/en active Active
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