CN218524424U - Particulate matter removing device - Google Patents
Particulate matter removing device Download PDFInfo
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- CN218524424U CN218524424U CN202123016807.9U CN202123016807U CN218524424U CN 218524424 U CN218524424 U CN 218524424U CN 202123016807 U CN202123016807 U CN 202123016807U CN 218524424 U CN218524424 U CN 218524424U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
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Abstract
The utility model relates to an atmospheric environment monitoring technology field discloses a particulate matter remove device. The particulate matter removing device comprises a negative pressure air inlet channel, a first centrifugal separation chamber, a second centrifugal separation chamber, an exhaust channel and a detection channel, wherein the negative pressure air inlet channel is used for introducing gas to be sampled, the first centrifugal separation chamber is used for performing primary cyclone separation on the gas to be sampled so as to separate first particulate matters with particle sizes larger than a first preset particle size value from the gas to be sampled, the second centrifugal separation chamber is used for performing secondary cyclone separation on the gas to be sampled after the primary cyclone separation so as to separate second particulate matters with particle sizes larger than a second preset particle size value from the gas to be sampled after the primary cyclone separation, and the gas to be sampled after the secondary cyclone separation is introduced into a gas analyzer through the detection channel. The utility model discloses the maintenance cost is low, and is small, easily integrated installation, and is noiseless to gas measurement result.
Description
Technical Field
The utility model relates to an atmospheric environment monitors technical field, especially relates to a particulate matter remove device.
Background
In the field of online monitoring of atmospheric gaseous pollutants, particulate matter components in an atmospheric sample gas to be analyzed need to be removed. The existing particulate matter removing method generally adopts schemes such as precise filter filtration or electrostatic adsorption and the like.
However, the precision filter method has two problems, one is that the filter element needs to be replaced frequently, and the operation and maintenance cost of the equipment is increased. Second for NH 3 When the gas with strong adhesion is used, a part of the gas to be measured is adhered to the filter, thereby increasing the system error of the measurement result. The electrostatic adsorption method can generate ozone in the working process, pollute sample gas to be measured and interfere the measurement result of a subsequent system.
SUMMERY OF THE UTILITY MODEL
Based on above problem, an object of the utility model is to provide a particulate matter remove device, maintenance cost is low, and is small, easily integrated installation, and is noiseless to gas measurement result.
In order to achieve the purpose, the utility model adopts the following technical proposal:
a particulate removal device, comprising:
the negative pressure gas inlet channel is used for introducing gas to be sampled;
the first centrifugal separation chamber is communicated with the negative pressure gas inlet channel and is used for performing primary cyclone separation on the gas to be sampled so as to separate first particles with particle sizes larger than a first preset particle size value in the gas to be sampled;
the second centrifugal separation chamber is communicated with the first centrifugal separation chamber and is used for carrying out secondary cyclone separation on the gas to be sampled after the primary cyclone separation so as to separate second particulate matters with the particle size larger than a second preset particle size value in the gas to be sampled after the primary cyclone separation;
an exhaust passage, one end of which is communicated with the first centrifugal separation chamber and the second centrifugal separation chamber, and the other end of which is communicated with the outside, so as to discharge the first particulate matters separated by the first centrifugal separation chamber and the second particulate matters separated by the second centrifugal separation chamber to the outside, respectively;
and one end of the detection channel is communicated with the first centrifugal separation chamber, and the other end of the detection channel is communicated with a gas analysis instrument so as to introduce the gas to be sampled after the second cyclone separation into the gas analysis instrument.
As the utility model discloses a particulate matter remove device's alternative, still include the first passageway, the one end of first passageway with first centrifugal separation room intercommunication, the other end with exhaust passage intercommunication, in order with the first particulate matter that first centrifugal separation room was separated lets in exhaust passage.
As the utility model discloses a particulate matter remove device's alternative still includes the second passageway, the one end of second passageway with first centrifugal separation room intercommunication, the other end with second centrifugal separation room intercommunication to with after the first cyclone treat that sampling gas lets in second centrifugal separation room.
As the utility model discloses a particulate matter remove device's alternative, still include the third passageway, the one end of third passageway with second centrifugal separation room intercommunication, the other end with exhaust passage intercommunication, in order with the second particulate matter that second centrifugal separation room was separated lets in exhaust passage.
As the utility model discloses a particulate matter remove device's alternative still includes the fourth passageway, the one end of fourth passageway with second centrifugal separation room intercommunication, the other end with the test channel intercommunication is in order to be with after the secondary cyclone treat that sampling gas lets in test channel.
As the utility model discloses a particulate matter remove device's alternative still includes flow sensor, flow sensor set up in the fourth passageway, be used for the detection to let in detection channel treat the gaseous flow of sampling.
As the utility model discloses a particulate matter remove device's alternative still includes the negative pressure pump, the negative pressure pump be used for right negative pressure inlet channel evacuation, with produce the negative pressure in the negative pressure inlet channel.
As the utility model discloses a particulate matter remove device's alternative still includes the exhaust fan, the exhaust fan set up in exhaust passage's export.
As the utility model discloses a particulate matter remove device's alternative still includes the filter, the filter set up in negative pressure inlet channel's import.
As the utility model discloses a particulate matter remove device's alternative, negative pressure inlet channel's import is provided with first valve, exhaust passage's export is provided with the second valve, detection channel's export is provided with the third valve.
The beneficial effects of the utility model are that:
the utility model provides a particulate matter remove device, let in through negative pressure inlet channel and treat the gas sampling, first cyclone is carried out to treating the gas sampling through the first centrifugal separation room with negative pressure inlet channel intercommunication, with the first particulate matter that the particle diameter is greater than first predetermined particle diameter value in separating the gas sampling, the second centrifugal separation room through with first centrifugal separation room intercommunication carries out second cyclone to treating the gas sampling after first cyclone, with the second particulate matter that the particle diameter is greater than second predetermined particle diameter value in treating the gas sampling after separating first cyclone, discharge the second particulate matter of first centrifugal separation room separation and second centrifugal separation room separation to the external world respectively through exhaust passage, let in the gas analysis instrument with treating the gas sampling after the second cyclone through the testing channel. The utility model provides a particulate matter remove device, the maintenance cost is low, and is small, easily integrated installation, it is noiseless to gaseous measuring result.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required to be used in the description of the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the contents of the embodiments of the present invention and the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a particulate matter removing apparatus provided in the embodiment of the present invention.
In the figure:
1-a negative pressure air intake passage; 2-a first centrifugal separation chamber; 3-a second centrifugal separation chamber; 4-an exhaust channel; 5-a detection channel; 6-a first channel; 7-a second channel; 8-a third channel; 9-a fourth channel; 10-flow sensor.
Detailed Description
In order to make the technical problems, the adopted technical solutions and the achieved technical effects of the present invention clearer, the embodiments of the present invention will be described in further detail with reference to the accompanying drawings. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first position" and "second position" are two different positions.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection or a removable connection; can be mechanically or electrically 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.
As shown in fig. 1, the present embodiment provides a particulate matter removing device that can be integrally mounted on an atmosphere detection apparatus, and includes a negative pressure intake passage 1, a first centrifugal separation chamber 2, a second centrifugal separation chamber 3, an exhaust passage 4, and a detection passage 5. The negative pressure air inlet channel 1 is used for introducing gas to be sampled. The first centrifugal separation chamber 2 is communicated with the negative pressure air inlet channel 1 and is used for performing primary cyclone separation on the gas to be sampled so as to separate out first particulate matters with particle sizes larger than a first preset particle size value in the gas to be sampled. The second centrifugal separation chamber 3 is communicated with the first centrifugal separation chamber 2 and is used for carrying out secondary cyclone separation on the gas to be sampled after the primary cyclone separation so as to separate out second particulate matters with the particle diameters larger than a second preset particle diameter value in the gas to be sampled after the primary cyclone separation. One end of the exhaust passage 4 is communicated with the first centrifugal separation chamber 2 and the second centrifugal separation chamber 3, respectively, and the other end is communicated with the outside, so as to discharge the first particulate matters separated from the first centrifugal separation chamber 2 and the second particulate matters separated from the second centrifugal separation chamber 3 to the outside, respectively. One end of the detection channel 5 is communicated with the first centrifugal separation chamber 2, and the other end is communicated with the gas analysis instrument, so that the gas to be sampled after the second cyclone separation is introduced into the gas analysis instrument.
Gas to be sampled is introduced through the negative pressure gas inlet channel 1, first cyclone separation is carried out on the gas to be sampled through the first centrifugal separation chamber 2 communicated with the negative pressure gas inlet channel 1 so as to separate first particulate matters with particle sizes larger than a first preset particle size value in the gas to be sampled, second cyclone separation is carried out on the gas to be sampled after the first cyclone separation through the second centrifugal separation chamber 3 communicated with the first centrifugal separation chamber 2 so as to separate second particulate matters with particle sizes larger than a second preset particle size value in the gas to be sampled after the first cyclone separation, the first particulate matters separated out from the first centrifugal separation chamber 2 and the second particulate matters separated from the second centrifugal separation chamber 3 are respectively discharged to the outside through the exhaust channel 4, and the gas to be sampled after the second cyclone separation is introduced into the gas analysis instrument through the detection channel 5.
It should be noted that the cyclone separation principle of the first centrifugal separation chamber 2 and the second centrifugal separation chamber 3 is the same as that of the cyclone separator in the prior art, that is, the solid particles or liquid drops with larger inertial centrifugal force are thrown and separated to the outer wall surface by the rotation motion caused by the tangential introduction of the air flow, and the centrifugal force borne by the particles is far greater than the gravity and the inertial force, so that the separation efficiency is higher, the structure is simple, the operation flexibility is large, the efficiency is higher, the management and maintenance are convenient, and the price is low.
The main structure of the first centrifugal separation chamber 2 and the second centrifugal separation chamber 3 is a conical cylinder, a gas inlet pipe is arranged in the tangential direction of the upper section of the cylinder, an exhaust pipe inserted into the cylinder to a certain depth is arranged at the top of the cylinder, and a powder outlet for receiving particles is arranged at the bottom of the conical cylinder. When the air flow enters the separation chamber from the air inlet pipe at the speed of 12-30 m/s, the air flow changes from linear motion to circular motion. The vast majority of the rotating air flow spirally flows downwards from the cylinder body along the wall of the device towards the cone. In addition, the particles are thrown to the wall under the action of centrifugal force, and once the particles contact the wall, the particles lose inertia force, and fall along the wall surface by the momentum of downward axial velocity near the wall, enter the ash discharge pipe, and are guided into the exhaust channel 4 through the powder outlet to be discharged outside. The outward rotating airflow which rotates and descends continuously flows into the central part of the centrifugal separation chamber in the descending process to form centripetal radial airflow, and the centripetal radial airflow forms an upward rotating inward rotational flow. The rotational directions of the inner and outer swirls are the same. Finally, the separated gas is discharged through an exhaust pipe, and a part of the unseparated finer dust particles also escape. Another small portion of the gas flowing from the inlet pipe flows downward along the outside of the exhaust pipe through the top cover, joins the rising internal cyclone flow when reaching the lower end of the exhaust pipe, enters the exhaust pipe, and then fine particles dispersed in the upward cyclone flow in this portion are carried away with it and thereafter trapped by a bag filter or a wet precipitator.
It will be appreciated that the movement of gas and solid particles in the first centrifugal separation chamber 2 and the second centrifugal separation chamber 3 is very complex, with tangential, radial and axial velocities at any point in the chambers and varying with the radius of rotation. In practice, the gas velocity should be controlled appropriately. Experiments show that the gas velocity is too low, and the separation efficiency is not high. However, the gas velocity is too high, which is likely to generate serious vortex and back mixing phenomena, and also reduces the separation efficiency.
To facilitate the passage of the first particulate matter separated in the first centrifugal separation chamber 2 into the exhaust passage 4, the particulate matter removing device may further include a first passage 6, one end of the first passage 6 communicating with the first centrifugal separation chamber 2 and the other end communicating with the exhaust passage 4 to pass the first particulate matter separated in the first centrifugal separation chamber 2 into the exhaust passage 4.
In order to conveniently introduce the gas to be sampled after the first cyclone separation into the second centrifugal separation chamber 3, the particulate matter removing device can further comprise a second channel 7, one end of the second channel 7 is communicated with the first centrifugal separation chamber 2, and the other end of the second channel is communicated with the second centrifugal separation chamber 3, so that the gas to be sampled after the first cyclone separation is introduced into the second centrifugal separation chamber 3.
To facilitate the passage of the second particulate matter separated in the second centrifugal separation chamber 3 into the exhaust passage 4, the particulate matter removing device may further include a third passage 8, one end of the third passage 8 being communicated with the second centrifugal separation chamber 3 and the other end being communicated with the exhaust passage 4 to allow the second particulate matter separated in the second centrifugal separation chamber 3 to be passed into the exhaust passage 4.
In order to conveniently lead the gas to be sampled after the second cyclone separation into the detection channel 5, the particulate matter removing device can further comprise a fourth channel 9, one end of the fourth channel 9 is communicated with the second centrifugal separation chamber 3, and the other end of the fourth channel is communicated with the detection channel 5, so that the gas to be sampled after the second cyclone separation is led into the detection channel 5.
In order to conveniently monitor the flow of the gas to be sampled which is introduced into the detection channel 5, optionally, the particulate matter removing device further comprises a flow sensor 10, and the flow sensor 10 is arranged in the fourth channel 9 and used for detecting the flow of the gas to be sampled which is introduced into the detection channel 5.
In order to conveniently introduce the gas to be sampled into the negative pressure air inlet channel 1, optionally, the particulate matter removing device further comprises a negative pressure pump, and the negative pressure pump is used for vacuumizing the negative pressure air inlet channel 1 so as to generate negative pressure in the negative pressure air inlet channel 1.
In order to accelerate the speed of discharging the first particles and the second particles to the outside, optionally, the particulate matter removing device further comprises an exhaust fan disposed at the outlet of the exhaust passage 4.
In order to prevent the foreign matter from entering the negative pressure intake passage 1, the particulate matter removing device may optionally further include a filter provided at an inlet of the negative pressure intake passage 1.
In order to facilitate the respective control of the opening and closing of the negative pressure air inlet channel 1, the air outlet channel 4 and the detection channel 5, optionally, an inlet of the negative pressure air inlet channel 1 is provided with a first valve, an outlet of the air outlet channel 4 is provided with a second valve, and an outlet of the detection channel 5 is provided with a third valve.
The particulate matter removing device provided by the embodiment is characterized in that gas to be sampled is introduced through the negative pressure gas inlet channel 1, first cyclone separation is performed on the gas to be sampled through the first centrifugal separation chamber 2 communicated with the negative pressure gas inlet channel 1 to separate first particulate matters with particle sizes larger than a first preset particle size value from the gas to be sampled, second cyclone separation is performed on the gas to be sampled after the first cyclone separation through the second centrifugal separation chamber 3 communicated with the first centrifugal separation chamber 2 to separate second particulate matters with particle sizes larger than a second preset particle size value from the gas to be sampled after the first cyclone separation, the first particulate matters separated from the first centrifugal separation chamber 2 and the second particulate matters separated from the second centrifugal separation chamber 3 are respectively discharged to the outside through the exhaust channel 4, and the gas to be sampled after the second cyclone separation is introduced into the gas analyzer through the detection channel 5.
It should be noted that the foregoing is only a preferred embodiment of the present invention and the technical principles applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments illustrated herein, but is capable of various obvious modifications, rearrangements and substitutions without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.
Claims (10)
1. A particulate removal device, comprising:
the negative pressure gas inlet channel (1) is used for introducing gas to be sampled;
the first centrifugal separation chamber (2) is communicated with the negative pressure air inlet channel (1) and is used for performing primary cyclone separation on the gas to be sampled so as to separate first particulate matters with the particle sizes larger than a first preset particle size value from the gas to be sampled;
the second centrifugal separation chamber (3) is communicated with the first centrifugal separation chamber (2) and is used for carrying out secondary cyclone separation on the gas to be sampled after the primary cyclone separation so as to separate second particulate matters with the particle size larger than a second preset particle size value in the gas to be sampled after the primary cyclone separation;
an exhaust passage (4), one end of the exhaust passage (4) is communicated with the first centrifugal separation chamber (2) and the second centrifugal separation chamber (3) respectively, and the other end of the exhaust passage is communicated with the outside, so as to discharge the first particulate matters separated from the first centrifugal separation chamber (2) and the second particulate matters separated from the second centrifugal separation chamber (3) to the outside respectively;
and one end of the detection channel (5) is communicated with the first centrifugal separation chamber (2), and the other end of the detection channel (5) is communicated with a gas analysis instrument so as to introduce the gas to be sampled after the second cyclone separation into the gas analysis instrument.
2. The particulate matter removing device according to claim 1, further comprising a first passage (6), one end of the first passage (6) communicating with the first centrifugal separation chamber (2) and the other end communicating with the exhaust passage (4) to pass the first particulate matter separated from the first centrifugal separation chamber (2) into the exhaust passage (4).
3. The particulate matter removing device according to claim 1, further comprising a second passage (7), one end of the second passage (7) communicating with the first centrifugal separation chamber (2) and the other end communicating with the second centrifugal separation chamber (3) to pass the gas to be sampled after the first cyclone separation into the second centrifugal separation chamber (3).
4. The particulate matter removing apparatus according to claim 1, further comprising a third passage (8), one end of the third passage (8) communicating with the second centrifugal separation chamber (3) and the other end communicating with the exhaust passage (4) to pass the second particulate matter separated in the second centrifugal separation chamber (3) into the exhaust passage (4).
5. The particulate matter removing device according to claim 1, further comprising a fourth passage (9), wherein one end of the fourth passage (9) is communicated with the second centrifugal separation chamber (3), and the other end is communicated with the detection passage (5), so that the gas to be sampled after the second cyclone separation is introduced into the detection passage (5).
6. The particulate matter removing device according to claim 5, further comprising a flow sensor (10), wherein the flow sensor (10) is disposed in the fourth channel (9) for detecting the flow of the gas to be sampled which is passed into the detection channel (5).
7. The particulate matter removing device according to claim 1, further comprising a negative pressure pump for evacuating the negative pressure intake passage (1) to generate a negative pressure in the negative pressure intake passage (1).
8. The particulate matter removing device according to claim 1, further comprising an exhaust fan provided at an outlet of the exhaust passage (4).
9. The particulate matter removing device according to claim 1, further comprising a filter provided at an inlet of the negative pressure intake passage (1).
10. The particulate matter removing device according to any one of claims 1 to 9, wherein an inlet of the negative pressure intake passage (1) is provided with a first valve, an outlet of the exhaust passage (4) is provided with a second valve, and an outlet of the detection passage (5) is provided with a third valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123016807.9U CN218524424U (en) | 2021-12-03 | 2021-12-03 | Particulate matter removing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123016807.9U CN218524424U (en) | 2021-12-03 | 2021-12-03 | Particulate matter removing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218524424U true CN218524424U (en) | 2023-02-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123016807.9U Active CN218524424U (en) | 2021-12-03 | 2021-12-03 | Particulate matter removing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218524424U (en) |
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2021
- 2021-12-03 CN CN202123016807.9U patent/CN218524424U/en active Active
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