CN115155250A - Generator set tail gas purification device and purification method thereof - Google Patents
Generator set tail gas purification device and purification method thereof Download PDFInfo
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- CN115155250A CN115155250A CN202210684727.0A CN202210684727A CN115155250A CN 115155250 A CN115155250 A CN 115155250A CN 202210684727 A CN202210684727 A CN 202210684727A CN 115155250 A CN115155250 A CN 115155250A
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- 238000000746 purification Methods 0.000 title claims abstract description 50
- 238000000034 method Methods 0.000 title claims abstract description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 110
- 239000002245 particle Substances 0.000 claims abstract description 55
- 230000007246 mechanism Effects 0.000 claims abstract description 37
- 238000001914 filtration Methods 0.000 claims abstract description 25
- 229920001971 elastomer Polymers 0.000 claims abstract description 17
- 238000005507 spraying Methods 0.000 claims abstract description 13
- 238000007664 blowing Methods 0.000 claims abstract description 7
- 239000007789 gas Substances 0.000 claims description 167
- 238000011010 flushing procedure Methods 0.000 claims description 28
- 239000007788 liquid Substances 0.000 claims description 18
- 238000001514 detection method Methods 0.000 claims description 14
- 239000000126 substance Substances 0.000 claims description 13
- 239000000919 ceramic Substances 0.000 claims description 11
- 229920000098 polyolefin Polymers 0.000 claims description 11
- 239000007921 spray Substances 0.000 claims description 11
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 claims description 9
- 229920000742 Cotton Polymers 0.000 claims description 5
- 230000008859 change Effects 0.000 claims description 5
- 239000000428 dust Substances 0.000 claims description 5
- 239000012535 impurity Substances 0.000 claims description 5
- 239000004816 latex Substances 0.000 claims description 5
- 229920000126 latex Polymers 0.000 claims description 5
- 239000010419 fine particle Substances 0.000 claims description 4
- 239000012634 fragment Substances 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- 238000001179 sorption measurement Methods 0.000 claims description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 3
- 229910002091 carbon monoxide Inorganic materials 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 239000000725 suspension Substances 0.000 claims description 2
- 238000009434 installation Methods 0.000 claims 1
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000013618 particulate matter Substances 0.000 description 2
- 230000002000 scavenging effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/06—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with moving adsorbents, e.g. rotating beds
- B01D53/10—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with moving adsorbents, e.g. rotating beds with dispersed adsorbents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/26—Drying gases or vapours
- B01D53/266—Drying gases or vapours by filtration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/30—Controlling by gas-analysis apparatus
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
- B01D53/78—Liquid phase processes with gas-liquid contact
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
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- Chemical Kinetics & Catalysis (AREA)
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- Oil, Petroleum & Natural Gas (AREA)
- Environmental & Geological Engineering (AREA)
- Dispersion Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention provides a generator set tail gas purification device and a purification method thereof, wherein the generator set tail gas purification device comprises the following steps: the tail gas conveying mechanism is arranged on one side of the shell and used for changing tail gas conveying pressure and guiding the flow direction of a plurality of tail gas emission pipelines; the tail gas purification mechanism is arranged in the shell and used for intercepting and filtering tail gas and expanding an intercepting and filtering contact surface; the tail gas spraying mechanism is arranged on the other side of the shell; according to the invention, tail gas circulates into the box body through the vent holes in the extension pipe, the activated carbon particle layer is blown behind the intercepting net, the activated carbon particle layer moves in the box body under the blowing of the tail gas, the activated carbon particle layer moves while contacting with the rubber plates on two sides of the inner wall of the box body, the movement path of the activated carbon particles is changed and the movement range of the activated carbon particles is increased by the elasticity of the rubber plates and the arc-shaped elastic pieces, and therefore, the area of the activated carbon particle layer contacting with the tail gas is increased.
Description
Technical Field
The invention relates to the technical field of generator sets, in particular to a generator set tail gas purification device and a purification method thereof.
Background
Gensets often consist of multiple diesel generators, which are a combination of a diesel engine and a generator (typically an alternator) to produce electrical energy. Diesel compression ignition engines are typically designed to run on fuel, but there are some types that are suitable for other liquid fuels or natural gas, where the generator can produce a polluting tail when operated in non-steady state conditions, which, if left untreated, can affect the quality of the human living environment.
However, the existing exhaust gas purification treatment technology of the generator set has certain problems:
1. current generating set is carrying to inside back of filtering purification mechanism after desulfurization treatment, and inside filtering purification mechanism is mostly the tube-shape or netted filter, and its filter can't change the shape to area of contact with tail gas is limited, makes filtering purification mechanism can't rationally carry out abundant contact with tail gas, leads to purification efficiency not enough.
2. When generating set carries out exhaust emissions, the discharge flow of the inside many exhaust emission pipelines of unit is different, carries out tail gas under this condition and concentrates when purifying, influences exhaust emissions's speed very easily, when discharge velocity is not enough, then can influence the circulation speed of tail gas in filter mechanism, influences filter purification's efficiency.
Disclosure of Invention
In view of this, the invention provides a device and a method for purifying exhaust gas of a generator set, so as to solve the problem of insufficient efficiency of purifying exhaust gas of an engine set.
The technical scheme of the invention is realized as follows: the invention provides a generator set tail gas purification device, which comprises: the device comprises a shell, a tail gas conveying mechanism, a tail gas purification mechanism and a tail gas spraying mechanism;
the tail gas conveying mechanism is arranged on one side of the shell and used for changing tail gas conveying pressure and guiding the flow direction of the tail gas discharge pipelines;
the tail gas purification mechanism is arranged in the shell and used for intercepting and filtering tail gas and expanding an intercepting and filtering contact surface;
the tail gas spraying mechanism is arranged on the other side of the shell and used for detecting the components of the filtered tail gas and carrying out liquid spraying purification.
On the basis of the technical scheme, it is preferred, tail gas conveying mechanism includes pipe support, pipe support inlay and install in one side of shell, one side of pipe support is run through and is installed a plurality of tail gas conveying pipe, pipe support's opposite side fixedly connected with conical duct, the conical duct is located the inside of shell, the one end of conical duct is established to sealed, and the other end is established to the opening, and the internal diameter of sealed end to the open end diminishes in proper order, tail gas conveying pipe's one end is run through the sealed end of conical duct, the open end inner wall fixedly connected with sealing washer of conical duct.
On the basis of the technical scheme, it is preferred, tail gas purification mechanism includes the box, the box install in the inside of shell, one side of box with the open end of toper pipe links to each other, just the open end in-connection of toper pipe has a plurality of extension pipes, the outside of extension pipe is equipped with a plurality of ventholes that the equidistance was arranged, and the extension pipe one end of seting up the venthole is located the inside of box, the inner wall fixedly connected with interception net of box, interception net is located the top of extension pipe, two arc shell fragment are installed to the equal symmetry of both sides inner wall of box, the outside of arc shell fragment bonds and has the rubber slab, the active carbon grained layer has been laid at the top of interception net, the opposite side of box inlays in proper order and is equipped with ceramic filter layer and polyolefin filter layer, the aperture of interception net is less than the particulate matter diameter of active carbon grained layer.
On above-mentioned technical scheme's basis, it is preferred, tail gas sprays mechanism includes the flushing tank, one side intercommunication of flushing tank has the connecting pipe, the one end of connecting pipe communicate in one side of box, transfer passage is installed to the top inner wall of flushing tank, transfer passage in-connection has the transfer line, the one end of transfer line is run through the flushing tank, the intercommunication that transfer passage's bottom equidistance was arranged has a plurality of shower head, tail gas detection subassembly is installed to the inner wall of flushing tank, one side intercommunication of flushing tank has the blast pipe.
On the basis of the technical scheme, preferably, the tail gas detection assembly consists of a carbon monoxide sensor, a nitrogen oxide sensor, a solid suspended matter sensor and a temperature sensor.
Preferably, the top of the box body is hinged with a top cover, and a handle is arranged on the top cover.
Preferably, the activated carbon particle layer is formed by stacking a plurality of granular activated carbons, the activated carbon particle layer moves in the box body, and the rubber plate, the interception net and the box body limit the movement space of the activated carbon particle layer.
Preferably, a cavity is formed in the bottom of one side of the shell, and a latex pad and a mute cotton layer are respectively arranged in the cavity.
Preferably, the plate body is installed to the bottom inner wall of box, the outside of extension pipe has the clamp of installing, install the bottom of clamp the plate body top.
The invention also provides a method for purifying the tail gas of the generator set, which comprises the following steps:
s1, conveying tail gas into a conical pipe in a shell through a plurality of tail gas conveying pipes, changing the flow direction of tail gas conveying and increasing the outlet flow speed by utilizing the shape that the inner diameter of one end of the conical pipe is larger than that of the other end of the conical pipe, and conveying the tail gas into a box body through an extension pipe in a centralized manner to perform tail gas purification treatment;
s2, blowing an activated carbon particle layer by tail gas through an air outlet hole in the extension pipe, wherein the activated carbon particle layer is formed by stacking a plurality of granular activated carbons, and contacts rubber plates on two sides of the inner wall of the box body while moving to change the motion range of the activated carbon particles and increase the area of the activated carbon particle layer contacting the tail gas;
s3, after the tail gas passing through the activated carbon particle layer is subjected to primary adsorption filtration treatment, intercepting and filtering fine particles and dust impurities in the tail gas through a ceramic filter layer, and intercepting liquid contained in the tail gas through a polyolefin filter layer, so as to carry out secondary filtration;
and S4, after secondary filtration, detecting the content of harmful substances and the internal temperature of the flushing tank by the tail gas detection assembly, selecting and conveying different purifying liquids according to the temperature and the harmful substances, and spraying and purifying the tail gas by using a spray head.
Compared with the prior art, the invention has the following beneficial effects:
(1) When the generator set tail gas purification device disclosed by the invention is used, tail gas flows into a box body through the gas outlet hole and blows the activated carbon particle layer, the activated carbon particle layer is formed by stacking a plurality of granular activated carbons and moves in the box body under the blowing of the tail gas, the rubber plates contact with two sides of the inner wall of the box body while moving, the movement path of the activated carbon particles is changed and the movement range of the activated carbon particles is increased by matching the elasticity of the rubber plates with the arc-shaped elastic sheets, so that the area of the activated carbon particle layer contacting with the tail gas is increased, and the tail gas purification efficiency is improved;
(2) Tail gas discharged by the generator set is conveyed into the conical pipe in the shell through the tail gas conveying pipes, and the flow direction of tail gas conveying is changed and the outlet flow speed is increased by utilizing the shape that the inner diameter of one end of the conical pipe is larger than that of the other end of the conical pipe, so that the reduction of the circulation speed of the tail gas in the filtering mechanism caused by the insufficient tail gas discharge speed of part of generators in the generator set is controlled and stabilized;
(3) Tail gas passes through the connecting pipe and circulates to the flushing tank in, through the inside temperature of harmful substance composition content and flushing tank in the tail gas detection subassembly detection tail gas, selects the scavenging solution according to temperature and harmful substance composition, and the scavenging solution passes through transfer line and transfer passage and carries to the shower head in, sprays purification treatment to tail gas, makes tail gas can spray to different harmful substance when spraying the purification.
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 description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a tail gas purification device of a generator set according to the invention;
FIG. 2 is a plan sectional view of the generator set exhaust gas purification device of the present invention;
FIG. 3 is a schematic perspective sectional view of the tail gas purification device of the generator set of the present invention;
FIG. 4 is a schematic view of a first perspective cross-sectional structure of a box body of the generator set tail gas purification device of the present invention;
FIG. 5 is a schematic view of a second perspective cross-sectional structure of a box body of the generator set exhaust gas purifying device according to the present invention;
FIG. 6 is a schematic cross-sectional view of a housing of the exhaust gas purification apparatus for a generator set according to the present invention;
FIG. 7 is an enlarged view of a portion of the invention at A in FIG. 2;
in the figure: 1. a housing; 2. a flushing tank; 3. a top cover; 4. a handle; 5. a tail gas conveying pipe; 6. a transfusion tube; 7. an exhaust pipe; 8. a pipe support; 9. a tapered tube; 10. a seal ring; 11. a box body; 12. an extension tube; 13. clamping a hoop; 14. a connecting pipe; 15. a shower head; 16. a delivery channel; 17. an intercepting net; 18. a plate body; 19. a rubber plate; 20. an arc-shaped elastic sheet; 21. a cavity; 22. a latex pad; 23. a mute cotton layer; 24. an air outlet; 25. an activated carbon particle layer; 26. a ceramic filter layer; 27. a polyolefin filter layer; 28. and a tail gas detection assembly.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
As shown in fig. 1, with reference to fig. 2 to 5, an embodiment of the present invention discloses a generator set tail gas purification apparatus, including: shell 1, tail gas conveying mechanism, tail gas purification mechanism and tail gas spray mechanism.
Wherein, tail gas conveying mechanism installs in one side of shell 1, tail gas conveying mechanism includes pipe support 8, pipe support 8 inlays the dress in one side of shell 1, one side of pipe support 8 is run through and is installed a plurality of tail gas conveying pipe 5, pipe support 8's opposite side fixedly connected with conical duct 9, conical duct 9 is located shell 1's inside, conical duct 9's one end is established to sealed, the other end is established to the opening, and the internal diameter of sealed end to the open end steadilys decrease in proper order, the sealed end of conical duct 9 is run through to tail gas conveying pipe 5's one end, the open end inner wall fixedly connected with sealing washer 10 of conical duct 9.
Adopt above-mentioned technical scheme, when using, tail gas carries to the inside conical tube 9 of shell 1 through many tail gas conveyer pipes 5, utilizes the one end internal diameter of conical tube 9 to be greater than the flow direction that the shape of other end internal diameter changed the tail gas and carried and increase the export velocity of flow, and wherein, outside leakage when sealing washer 10 can avoid tail gas to carry.
In order to realize tail gas purification of a generator set, the tail gas purification mechanism disclosed in this embodiment is installed inside a housing 1, and as shown in fig. 1-7, the tail gas purification mechanism includes a box 11, the box 11 is installed inside the housing 1, one side of the box 11 is connected with an open end of a tapered tube 9, and a plurality of extension tubes 12 are communicated in the open end of the tapered tube 9, a plurality of air outlets 24 are arranged outside the extension tubes 12 at equal intervals, one end of the extension tube 12 provided with the air outlets 24 is located inside the box 11, an interception net 17 is fixedly connected to an inner wall of the box 11, the interception net 17 is located at the top of the extension tube 12, two arc-shaped elastic pieces 20 are symmetrically installed on inner walls of two sides of the box 11, a rubber plate 19 is bonded to the outside of the arc-shaped elastic pieces 20, an activated carbon particle layer 25 is laid on the top of the interception net 17, a ceramic filter layer 26 and a polyolefin filter layer 27 are sequentially embedded on the other side of the box 11, and the aperture of the interception net 17 is smaller than the particle diameter of the activated carbon particle layer 25.
Adopt above-mentioned technical scheme, when using, tail gas circulates in to box 11 through the venthole 24 on the extension pipe 12, and blow activated carbon particle layer 25 behind intercepting net 17, activated carbon particle layer 25 is piled up by a plurality of granular activated carbons and constitutes, and move in box 11 inside under the blowing of tail gas, the rubber sheet 19 that contacts 11 inner wall both sides of box 19 changes activated carbon particle's motion path and increases activated carbon particle's motion range when moving, tiny particulate matter and dust impurity in the tail gas are filtered through ceramic filter layer 26 interception to tail gas through activated carbon particle layer 25, and the liquid that contains in the tail gas is intercepted through polyolefin filter layer 27, thereby carry out secondary filter.
In order to further improve tail gas purification efficiency, this embodiment has still disclosed tail gas and has sprayed the mechanism and realize. Specifically, the tail gas spraying mechanism is installed on the other side of the shell 1, the tail gas spraying mechanism comprises a flushing tank 2, one side of the flushing tank 2 is communicated with a connecting pipe 14, one end of the connecting pipe 14 is communicated with one side of a box body 11, a conveying channel 16 is installed on the inner wall of the top of the flushing tank 2, a liquid conveying pipe 6 is communicated in the conveying channel 16, one end of the liquid conveying pipe 6 penetrates through the flushing tank 2, a plurality of spray heads 15 are communicated with the bottom of the conveying channel 16 in an equidistant mode, a tail gas detection assembly 28 is installed on the inner wall of the flushing tank 2, an exhaust pipe 7 is communicated with one side of the flushing tank 2, tail gas which flows into the flushing tank 2 through the connecting pipe 14 is detected through the tail gas detection assembly 28 to detect the content of harmful substances in the tail gas and the internal temperature of the flushing tank 2, purifying liquid is selected according to the temperature and the harmful substances, the purifying liquid is conveyed to the spray heads 15 through the conveying pipe 6 and the conveying channel 16, the tail gas is sprayed and then discharged to the outside through the exhaust pipe 7 after treatment.
Specifically, in the present embodiment, the exhaust gas detection assembly 28 is composed of a carbon monoxide sensor, a nitrogen oxide sensor, a solid suspension sensor, and a temperature sensor.
As some embodiments, the top of the box body 11 is hinged with a top cover 3, the top cover 3 is provided with a handle 4, and an operator can open the top cover 3 by pulling the handle 4 to replace or maintain an activated carbon particle layer 25, a ceramic filter layer 26 and a polyolefin filter layer 27 in the box body 11, wherein the activated carbon particle layer 25 is formed by stacking a plurality of granular activated carbons, the activated carbon particle layer 25 moves in the box body 11, and the rubber plate 19, the intercepting net 17 and the box body 11 limit the movement space of the activated carbon particle layer 25; a cavity 21 is arranged at the bottom of one side of the shell 1, and a latex pad 22 and a mute cotton layer 23 are respectively arranged in the cavity 21.
By adopting the technical scheme, the latex pad 22 and the mute cotton layer 23 are filled and installed in the cavity 21 of the shell 1, so that the shaking of the shell 1 caused by the tail gas circulation and the movement of the activated carbon particle layer 25 can be reduced, and the noise is reduced; plate body 18 is installed to the bottom inner wall of box 11, and extension pipe 12's outside has to install clamp 13, and clamp 13's bottom is installed at plate body 18 top, utilizes clamp 13 to restrict extension pipe 12's outside position, avoids extension pipe 12 to take place the skew.
The invention discloses a generator set tail gas purification device, which has the following working principle:
tail gas is conveyed into a conical pipe 9 in the shell 1 through a plurality of tail gas conveying pipes 5, the flow direction of tail gas conveying is changed and the outlet flow speed is increased by utilizing the shape that the inner diameter of one end of the conical pipe 9 is larger than that of the other end of the conical pipe 9, and the tail gas is intensively conveyed into a box body 11 through an extension pipe 12 to be subjected to tail gas purification treatment, so that the phenomenon that the circulation speed of the tail gas in a filtering mechanism is reduced due to the insufficient exhaust speed of part of generator tail gas in a generator set can be controlled and stabilized;
tail gas circulates into the box body 11 through the gas outlet 24 on the extension pipe 12, and blows the activated carbon particle layer 25 after passing through the interception net 17, the activated carbon particle layer 25 is formed by stacking a plurality of granular activated carbons, and moves in the box body 11 under the blowing of the tail gas, contacts the rubber plates 19 on two sides of the inner wall of the box body 11 while moving, and matches the arc-shaped elastic sheets 20 with the elasticity of the rubber plates 19, so that the moving path of the activated carbon particles is changed, the moving range of the activated carbon particles is enlarged, the area of the activated carbon particle layer 25 contacting the tail gas is enlarged, and the tail gas purification efficiency is improved;
after the tail gas is subjected to primary adsorption filtration treatment of the activated carbon particle layer 25, fine particles and dust impurities in the filtered tail gas are intercepted through the ceramic filter layer 26, and liquid contained in the tail gas is intercepted through the polyolefin filter layer 27, so that secondary filtration is performed; the tail gas purified and filtered by the activated carbon particle layer 25, the ceramic filter layer 26 and the polyolefin filter layer 27 flows into the flushing tank 2 through the connecting pipe 14, the content of harmful substances in the tail gas and the internal temperature of the flushing tank 2 are detected by the tail gas detection assembly 28, a purifying liquid is selected according to the temperature and the harmful substances, the purifying liquid is conveyed into the spray header 15 through the liquid conveying pipe 6 and the conveying channel 16, the tail gas is sprayed and purified, and after treatment, the tail gas is discharged to the outside through the exhaust pipe 7.
The embodiment of the invention also provides a method for purifying the tail gas of the generator set, which comprises the following steps:
s1, tail gas is conveyed into a conical pipe 9 in a shell 1 through a plurality of tail gas conveying pipes 5, the shape that the inner diameter of one end of the conical pipe 9 is larger than that of the other end of the conical pipe is utilized to change the conveying flow direction of the tail gas and increase the outlet flow speed, and the tail gas is conveyed into a box body 11 in a concentrated mode through an extension pipe 12 to be purified;
s2, blowing an activated carbon particle layer 25 by tail gas through an air outlet 24 on the extension pipe 12, wherein the activated carbon particle layer 25 is formed by stacking a plurality of granular activated carbons, and contacts the rubber plates 19 on two sides of the inner wall of the box body 11 while moving to change the moving range of the activated carbon particles and increase the area of the activated carbon particle layer 25 contacting the tail gas;
s3, after the tail gas passing through the activated carbon particle layer 25 is subjected to primary adsorption filtration treatment, intercepting and filtering fine particles and dust impurities in the tail gas through a ceramic filter layer 26, and intercepting liquid contained in the tail gas through a polyolefin filter layer 27, so as to carry out secondary filtration;
and S4, after secondary filtration, detecting the content of harmful substances and the internal temperature of the flushing tank 2 by the tail gas detection assembly 28, selectively conveying different purifying liquids according to the temperature and the harmful substances, and spraying and purifying the tail gas by using the spray header 15.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. The utility model provides a generating set tail gas cleanup unit which characterized in that includes: the device comprises a shell (1), a tail gas conveying mechanism, a tail gas purifying mechanism and a tail gas spraying mechanism; wherein,
the tail gas conveying mechanism is arranged on one side of the shell (1) and used for changing tail gas conveying pressure and guiding the flow direction of a plurality of tail gas discharge pipelines;
the tail gas purification mechanism is arranged in the shell (1) and is used for intercepting and filtering tail gas and expanding an intercepting and filtering contact surface;
the tail gas spraying mechanism is arranged on the other side of the shell (1) and used for detecting the components of the filtered tail gas and carrying out liquid spraying purification.
2. The method for purifying the tail gas of the generator set according to the claim 1, characterized in that: tail gas conveying mechanism includes pipeline bracket (8), pipeline bracket (8) inlay and adorn in one side of shell (1), one side of pipeline bracket (8) is run through and is installed a plurality of exhaust duct pipe (5), opposite side fixedly connected with conical duct (9) of pipeline bracket (8), conical duct (9) are located the inside of shell (1), the one end of conical duct (9) is established to sealed, and the other end is established to the opening, and sealed end degressive to the internal diameter of open end in proper order, the one end of exhaust duct (5) is run through the sealed end of conical duct (9), the open end inner wall fixedly connected with sealing washer (10) of conical duct (9).
3. The tail gas purification device for the generator set according to claim 2, characterized in that: tail gas purification mechanism includes box (11), box (11) install in the inside of shell (1), one side of box (11) with the open end of conical duct (9) links to each other, just the open end in-connection of conical duct (9) has a plurality of extension pipes (12), the outside of extension pipe (12) is equipped with a plurality of ventholes (24) that the equidistance was arranged, and extension pipe (12) one end of seting up venthole (24) is located the inside of box (11), the inner wall fixedly connected with interception net (17) of box (11), interception net (17) are located the top of extension pipe (12), two arc shell fragment (20) are installed to the equal symmetry of both sides inner wall of box (11), the outside bonding of arc shell fragment (20) has rubber slab (19), activated carbon particle layer (25) have been laid at the top of interception net (17), the opposite side of box (11) is inlayed in proper order and is equipped with ceramic filter layer (26) and polyolefin filter layer (27), the aperture of interception net (17) is less than the diameter of activated carbon particle layer (25).
4. The method for purifying the tail gas of the generator set according to claim 3, characterized in that: tail gas sprays mechanism includes flushing tank (2), one side intercommunication of flushing tank (2) has connecting pipe (14), the one end of connecting pipe (14) communicate in one side of box (11), conveying channel (16) are installed to the top inner wall of flushing tank (2), conveying channel (16) in-connection has transfer line (6), the one end of transfer line (6) is run through flushing tank (2), the intercommunication that the bottom equidistance of conveying channel (16) was arranged has a plurality of shower head (15), tail gas detection subassembly (28) are installed to the inner wall of flushing tank (2), one side intercommunication of flushing tank (2) has blast pipe (7).
5. The tail gas purification device for the generator set according to claim 4, characterized in that: the tail gas detection assembly (28) is composed of a carbon monoxide sensor, a nitrogen oxide sensor, a solid suspension sensor and a temperature sensor.
6. The tail gas purification device for the generator set according to claim 3, characterized in that: the top of box (11) articulates there is top cap (3), be equipped with handle (4) on top cap (3).
7. The tail gas purification device for the generator set according to claim 3, characterized in that: the activated carbon particle layer (25) is formed by stacking a plurality of granular activated carbons, the activated carbon particle layer (25) moves in the box body (11), and the rubber plate (19), the interception net (17) and the box body (11) limit the movement space of the activated carbon particle layer (25).
8. The tail gas purification device for the generator set according to claim 3, characterized in that: one side bottom of shell (1) is equipped with cavity (21), latex pad (22) and silence cotton layer (23) are installed respectively to the inside of cavity (21).
9. The tail gas purification device for the generator set according to claim 3, characterized in that: the plate body (18) are installed to the bottom inner wall of box (11), there is installation clamp (13) extension pipe (12) outside, install the bottom of clamp (13) plate body (18) top.
10. A method for purifying the tail gas of a generator set by using the device for purifying the tail gas of the generator set, which is characterized by comprising the following steps:
s1, conveying tail gas into a conical pipe (9) in a shell (1) through a plurality of tail gas conveying pipes (5), changing the flow direction of tail gas conveying and increasing the outlet flow rate by utilizing the shape that the inner diameter of one end of the conical pipe (9) is larger than that of the other end of the conical pipe, and conveying the tail gas into a box body (11) through an extension pipe (12) in a centralized manner to carry out tail gas purification treatment;
s2, blowing an activated carbon particle layer (25) by tail gas through an air outlet hole (24) in an extension pipe (12), wherein the activated carbon particle layer (25) is formed by stacking a plurality of granular activated carbons, and contacts rubber plates (19) on two sides of the inner wall of the box body (11) during movement to change the movement range of the activated carbon particles and increase the area of the activated carbon particle layer (25) contacting the tail gas;
s3, after the tail gas passing through the activated carbon particle layer (25) is subjected to primary adsorption filtration treatment, intercepting and filtering fine particles and dust impurities in the tail gas through a ceramic filter layer (26), and intercepting liquid contained in the tail gas through a polyolefin filter layer (27) so as to carry out secondary filtration;
and S4, after secondary filtration, detecting the content of harmful substances and the internal temperature of the flushing tank (2) by the tail gas through a tail gas detection assembly (28), selecting and conveying different purifying liquids according to the temperature and the harmful substances, and spraying and purifying the tail gas by using a spray head (15).
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| CN202210684727.0A CN115155250B (en) | 2022-06-17 | 2022-06-17 | Generator set tail gas purification device and purification method thereof |
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