CN203214135U - Air purification device - Google Patents
Air purification device Download PDFInfo
- Publication number
- CN203214135U CN203214135U CN 201320092593 CN201320092593U CN203214135U CN 203214135 U CN203214135 U CN 203214135U CN 201320092593 CN201320092593 CN 201320092593 CN 201320092593 U CN201320092593 U CN 201320092593U CN 203214135 U CN203214135 U CN 203214135U
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- air
- carrier
- cleaning unit
- pipe
- outer tube
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- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Exhaust Gas After Treatment (AREA)
Abstract
The utility model discloses an air purification device, which comprises an inner pipe and an outer pipe which is sleeved outside the inner pipe, wherein a waste gas inlet which is connected with an internal combustion engine exhaust pipe is arranged on one end of the inner pipe, a waste gas outlet is arranged on the other end of the inner pipe, an air inlet and an air outlet are respectively arranged on the two ends of the outer pipe, a carrier which can remove harmful substances in the air is arranged in the outer pipe which is arranged between the air inlet and the air outlet, and the carrier comprises a catalyst coating or a chemical coating which has the ability for absorbing the harmful substances in the air. The air purification device further comprises a heat transmitter and a restrictor, wherein the heat transmitter is arranged in the inner pipe, the restrictor is arranged on the end surface of the outer pipe, and the surface of the restrictor is provided with through holes which can adjust densities and/or diameters are arranged on. The air purification device heats the carrier by utilizing residual heat of waste gas of the internal combustion engine exhaust pipe, and the carrier can effectively remove the harmful substances in the air. The air purification device is simple in structure, convenient to mount and low in cost, saves energy, protects environment, and is beneficial for wide promotion and use.
Description
Technical field
The utility model relates to a kind of purification plant, particularly a kind of air cleaning unit.
Background technique
Along with the modernization of industry and the reinforcement day by day of mankind's activity, earth environment has been caused many bad influences, such as the desertification in soil, a large amount of disappearances of greenery patches and forest, the severe contamination of air etc.With regard to atmospheric pollution, since a large amount of uses of oil, coal etc., airborne harmful gas and material, such as, carbon monoxide, hydrocarbon, nitrogen oxide, sulfur dioxide, sulfur trioxide, particulate matter comprise PM10 and PM2.5 etc., have increased many in the past than human industrialization.Meanwhile, owing to above reason carbon dioxide in air content has also improved much, this has caused the very big concern of people to global warming, sea-level rise.
The middle of last century, people have recognized gradually that air-polluting strengthens day by day, also recognized simultaneously the influence of atmospheric pollution to human health, many countries and regions have been formulated some rules in succession and are limited from various channels and enter harmful substances in air thus.Wherein, are one of main sources of pollutant in the air by oil-engine driven automobile and other engineering goods, thereby the standard of many restricting vehicle exhaust emissions is also put into effect in succession.The harmful matter that automobile is discharged comprises carbon monoxide, hydrocarbon, nitrogen oxide, sulfur dioxide, sulfur trioxide, particulate matter etc.Wherein, hydrocarbon, nitrogen oxide and oxysulfide often can form new particulate matter or are attached on the existing particulate matter by processes such as adsorbing, condense, thereby increase number concentration and the mass concentration of particulate matter.In order to reach more and more stricter automobile emissions standards, except improving technology such as motor car engine manufacturing, burning and fuel qualities, the automobile exhaust gas catalysis technique also is used to reduce effectively pollutant emission, and wherein rare noble metal is the important component part of automotive exhaust-gas catalysts.Usually, under the effect of catalyzer, the carbon monoxide in the waste gas and oxidizing hydrocarbon are generated carbon dioxide, chemical equation (a) and (b) working principle of the modal oxidation catalyst for the waste gas that contains excessive oxygen of description:
2CO?+?O
2?==?2CO
2 (a)
4HC?+?5O
2?==?4CO
2?+?2H
2O (b)
For catalyzer composition that be used for to remove nitrogen oxide and working principle more complicated then, and require oxygen content very low and close to zero, and have the carbon monoxide of capacity and/or hydrocarbon to exist, chemical equation (c) and (d) the modal working principle of under catalyst action, carrying out reduction reaction of description:
NO
x?+?CO?—>?N
2?+?CO
2 (c)
NO
x?+?HC?—>?N
2?+CO
2?+?H
2O (d)
In order to remove harmful matter effectively, exhaust gas catalyst should have very high catalytic efficiency, and above chemical reaction carries out under the temperature more than at least 150 C usually.
Although have many different rules and technology to be used to control emission of harmful substances in the automobile exhaust gas, still have a large amount of harmful matters to be discharged in the air.In case these harmful matters enter air, they have very long life cycle, as by self absorptivity of the earth or the physical and chemical processes such as circulation of atmosphere, need some months, several years and even longer time could from air, remove these harmful matters or be transformed into other innoxious substance.It is contemplated that have one day if these harmful matters in air more, it will threaten to the healthy of environment and people.Therefore be necessary that a kind of low cost of model utility and efficient ways remove these harmful matters as early as possible from air.
The model utility content
The purpose of this utility model is to overcome that the existing harmful matter that is discharged in the air can not be by low-cost and effective above-mentioned deficiency of removing in the prior art, a kind of air cleaning unit is provided, this air cleaning unit is to utilize automobile or other mechanical outlet pipe waste gas residual heats to heat the carrier that is installed on the outlet pipe, this carrier is provided with catalyst coat and/or can be adsorbed with the chemical substance coating of harmful substances, thereby low-cost, remove airborne pollutant effectively.
In order to realize above-mentioned model utility purpose, the utility model provides following technological scheme:
A kind of air cleaning unit, comprise interior pipe and be sleeved on the outer outer tube of described interior pipe, Guan Yiduan is for connecting the exhaust gas entrance of internal-combustion engine vent-pipe in described, the other end is waste gas outlet, described outer tube two ends are respectively air inlet and air outlet slit, are provided with the carrier that can remove harmful matter in the air in the outer tube between described air inlet, the air outlet slit.
Preferably, described carrier is provided with catalyst coat or has the chemical substance coating of absorbed air harmful matter ability.
Preferably, described carrier cross section is made of passage, and described channel surface is provided with catalyst coat or has the chemical substance coating of absorbed air harmful matter ability.
Preferably, described carrier includes some beads, and described bead surface is provided with catalyst coat or has the chemical substance coating of absorbed air harmful matter ability.
Preferably, described carrier is for being used for removing the particulate filter of particulate in air, and the filter surfaces that contacts with air is provided with catalyst coat and/or has the chemical substance coating of absorbed air harmful matter ability.
Pollutant in this catalyst coat energy oxidation, reduction or the simultaneous oxidation reducing atmosphere such as carbon monoxide, hydrocarbon, oxysulfide etc., because hydrocarbon, nitrogen oxide and oxysulfide often form new particulate matter by processes such as adsorbing, condense or are attached on the existing particulate matter, therefore the measure that reduces hydrocarbon in the air, nitrogen oxide, oxysulfide etc. also can reduce airborne particulate matter effectively, PM10 for example, PM2.5 etc.; And the chemical substance coating is the direct harmful matter in the absorbed air, reaches the purpose that purifies air.
Preferably, correspondingly with described carrier be provided with heat transmitter in the pipe in described.
Supported catalyst coating or have that the reaction needed of the chemical substance coating of absorbed air harmful matter ability carries out at a certain temperature, when the waste gas in the outlet pipe flows through, its waste heat is not enough to reach carrier when temperature required, then in interior pipe, heat transmitter is set, heat transmitter passes to carrier with it after absorbing waste gas residual heat, makes it reach corresponding operating temperature.
Preferably, be provided with liner between described carrier and the described outer tube.
Carrier is wrapped in the liner, can effectively carrier be fixed in the outer tube.
Preferably, the described outer tube end that is positioned at described air inlet is provided with flow controller, and described flow controller becomes frustoconic shape, and the bigger end of opening outwardly, and flow controller can limit the air mass flow that enters purification plant, guarantees that this purification plant can reach higher purification efficiency.
Preferably, described flow controller surface is provided with some holes, and described hole density and/or diameter can be regulated, and can conveniently regulate and obtain the required air flow.
Preferably, the described outer tube end that is positioned at described air outlet slit is provided with netted mudguard wing, can block silt dust and enter this purification plant, guarantees effective work of this purification plant.
Preferably, the corresponding described diameter of inner pipe of described heat transmitter is greater than the diameter at pipe two ends in described, and described outer tube equates with described interior tube thickness difference.
Compared with prior art, the beneficial effects of the utility model:
A kind of air cleaning unit described in the utility model, be installed on internal-combustion engine or other the mechanical outlet pipes, utilize its outlet pipe waste gas residual heat to come heating carrier, the catalyzer that this carrier is provided with energy catalysis, reducing atmosphere pollutant maybe can be adsorbed with the chemical substance of harmful substances, can remove airborne pollutant effectively, for example carbon monoxide, hydrocarbon, nitrogen oxide, sulfur dioxide, ozone etc., it is simple in structure, easy for installation, cost is lower, energy-conserving and environment-protective, is beneficial to widely and promotes the use of.
Description of drawings:
Fig. 1 is the cross-sectional view of a kind of air cleaning unit described in the utility model.
Fig. 2 is the end face partial schematic diagram of rectangular shape for carrier described in the utility model.
Fig. 3 is the structural representation of flow controller described in the utility model.
Fig. 4 is the scheme of installation of a kind of air cleaning unit described in the utility model on automobile exhaust pipe.
Mark among the figure:
1, interior pipe, 101, exhaust gas entrance, 102, waste gas outlet, 2, outer tube, 201, air inlet, 202, air outlet slit, 3, carrier, 4, flow controller, 5, liner, 6, mudguard wing, 7, heat transmitter, 8, passage, 9, through hole, 10, outlet pipe, 11, exhaust gas catalyzer, 12, exhaust-gas silencer.
Embodiment
Below in conjunction with test example and embodiment the utility model is described in further detail.But this should be interpreted as that the scope of the above-mentioned theme of the utility model only limits to following embodiment, all technology that realizes based on the utility model content all belong to scope of the present utility model.
Shown in Fig. 1-4, a kind of air cleaning unit, comprise interior pipe 1 and be sleeved on the described interior 1 outer outer tube 2 of managing, pipe 1 one ends are for connecting the exhaust gas entrance 101 of internal-combustion engine vent-pipe 10 in described, the other end waste gas outlet 102, described outer tube 2 two ends are respectively air inlet 201 and air outlet slit 202, are provided with the carrier 3 that can remove harmful matter in the air in the outer tube 2 between described air inlet 201, the air outlet slit 202.Wherein solid arrow represents the waste gas flow direction among Fig. 1,3, and dotted arrow represents air flow among Fig. 1.
This carrier 3 is provided with catalyst coat and/or has the chemical substance coating of absorbed air harmful matter ability, and this catalyzer can be removed certain or remove several airborne pollutants simultaneously, for example, carbon monoxide, hydrocarbon, nitrogen oxide, sulfur dioxide, ozone etc.Because hydrocarbon, nitrogen oxide and oxysulfide often form new particulate matter by processes such as adsorbing, condense or are attached on the existing particulate matter, therefore the measure that reduces hydrocarbon in the air, nitrogen oxide, oxysulfide etc. also can reduce airborne particulate matter effectively, PM10 for example, PM2.5 etc.Usually, this catalyzer can be widely used for off-gas oxidizing catalyzer and/or reducing catalyst on automobile and other movable machinery.Chemical substance with absorbed air harmful matter ability is directly to absorb harmful substances in air, but these chemical substances include but not limited to the sodium hydroxide of absorbing carbon dioxide, caustic potoash etc., the aluminium sesquioxide of hydrocarbon can be absorbed, the calcium oxide of oxysulfide etc. can be absorbed.
For reaching such effect, it scribbles the carrier 3 that catalyzer or some have the chemical substance of absorbed air harmful matter ability should have the excellent heat conductivity performance, it can reach the heat that absorbs each position of carrier 3 equably, makes that the temperature difference between each position minimizes on the carrier 3.The material of carrier 3 can be metal, for example iron or some alloy are also nonmetal, for example pottery or silicon carbide, these materials should have stronger impact resistance and heat resistanceheat resistant adaptability to changes, and Bu Rongization and indeformable Xia can the high temperature more than hundreds of degree centigrade.
Sectional drawing and entrance end face partial schematic diagram when carrier 3 is cuboid shape as shown in Fig. 1,2, have been presented, its carrier 3 inside have been covered with many cuboid shape passages 8, this passage 8 can increase the internal area of carrier 3, thereby can increase the surface area of chemical substance of the catalyzer that is coated with or tool absorbed air harmful matter ability, and finally play the effect that improves this purification plant working efficiency.When flowing through in these passages 8, air, can not cause that too big pressure descends yet.The shape of passage 8 can be shapes such as cylindrical, honeycombed.The end face partial view of the passage 8 that Fig. 2 has presented carrier 3 during for cuboid shape.
Equally, except the cuboid shape shown in Fig. 1 symmetry carrier 3, the shape of carrier 3 can be adjusted as the case may be, i.e. the shape of whole carrier 3 cylindrical, oval shape, and can be symmetric figure or asymmetric shape, even carrier 3 also can be made of a large amount of beads; When carrier 3 was made of a large amount of beads, the chemical substance of catalyzer or tool absorbed air harmful matter ability can be applied to the surface of bead.And in some cases, when needing directly to remove airborne particulate matter, carrier 3 itself also can be particulate filter, can enough in the noxious pollutant, directly remove airborne particulate matter in the removal air.
Need to prove, being applied to catalyzer on the carrier 3 or the chemical substance of tool absorbed air harmful matter ability can be applied on the carrier 3 equably, also inhomogeneous coating on purpose, in a word, finally which kind of form is used and will depends on working efficiency and the manufacture cost of required purification plant.Similarly, the kind that is applied to the chemical substance of supported catalyst or tool absorbed air harmful matter ability also can be different with function, and it can be oxidation catalyst, also reducing catalyst, the also chemical substance of tool absorbed air harmful matter ability.Equally, according to different requirements, also the chemical substance of oxidation catalyst and reducing catalyst and tool absorbed air harmful matter ability can be made up effectively, be applied to the different parts of carrier 3 then respectively, thereby can enough reach the ability of removing multiple harmful substances simultaneously.
As shown in Figure 1, carrier 3 outer surfaces are provided with liner 5 and are wrapped in the outer tube 2, it can not be moved at outer tube 2 internal freedoms, and the sectional shape of outer tube 2 can become according to the shape of carrier 3, i.e. circle, ellipse etc. of itself and carrier 3 contact segment sectional shapes.This liner 5 should have certain contractibility, and it should also have good thermal insulation property in the high temperature of anti-hundreds of degree centigrade.
Exhaust gas entrance on this purification plant is connected on the internal-combustion engine vent-pipe 10, it can be connected with engine exhaust pipe 10 by forms such as welding or flange plate, needing to guarantee to connect to have gas leak phenomenon, and the joint should have certain intensity, can resist to a certain degree vibration and thermal stress.The air inlet 201 of its outer tube should be toward the direction of travel of automobile or movable machinery when mounted for this purification plant, namely towards being to be parallel to direction of travel, also can be perpendicular to direction of travel, or depart from the Vertical direction of travelling a little.
In addition, this purification plant both can be installed between the motor access port and waste gas outlet of internal-combustion engine vent-pipe 10, also can be installed on the waste gas outlet position of outlet pipe 10; If interior combustion gas outlet pipe 10 is provided with exhaust gas catalyzer 11 and automobile exhaust gas baffler 12, its best position is on the outlet pipe 10 between exhaust gas catalyzer 10 and the mobile muffler 12, especially, if outlet pipe 10 is provided with a plurality of exhaust gas catalyzers 11, then best position is on the exhaust gas catalyzer 11 and the outlet pipe between the automobile exhaust gas baffler 12 near automobile exhaust gas baffler 12, as shown in Figure 4; In some cases, this purification plant also may be installed in the waste gas outlet end of outlet pipe 10, but the waste gas outlet 102 on this purification plant should not exceed the least significant end of automobile or movable machinery.In addition, this device also can with automobile on other component integrate, be installed on the automobile as the some of these parts.These component include but not limited to automobile exhaust gas catalysis device 11, automobile exhaust gas filter, automobile exhaust gas baffler 12 etc.
Interior pipe 1 between this purification plant exhaust gas entrance 101 and the waste gas outlet 102 also is provided with heat transmitter 7, and corresponding with 3 in carrier, can adopt welding or alternate manner to be connected between this heat transmitter 7 and the exhaust gas entrance 101.After engine exhaust gas enters purification plant from this purification plant exhaust gas entrance, the heat transmitter 7 of flowing through, it can absorb the waste heat of engine exhaust gas effectively, and heat reached carrier 3, thereby heating carrier 3, the chemical substance that makes catalyzer on the carrier 3 or have an absorbed air harmful matter ability reaches required operating temperature.The design of this heat transmitter 7 is unrestricted, but should not cause that the excessive pressure of appearance descended when engine exhaust gas was flowed through heat transmitter 7, and in other words, pressure descends the smaller the better.The material of heat transmitter 7 has the metal of excellent heat conductivity performance or nonmetal, also can be simultaneously by the metal with excellent heat conductivity performance and nonmetal being made.Heat transmitter 7 links to each other with waste gas outlet 102, and its Placement can adopt welding or other effective Placement equally, and the engine exhaust gas heat transmitter of flowing through flows out the waste gas outlet 102 of purification plant again.In some cases, carrier 3 and heat transmitter 2 also can be made into same part.Under the other situation, on the carrier 3 the catalyzer that is coated with or required operating temperature with chemical substance of absorbed air harmful matter ability be not very high, namely do not need too many heat to come heating carrier 3, if pipe was 1 o'clock in waste gas was flowed through, the chemical substance that all the other hot heat carriers 3 just can make the catalyzer in the carrier 3 or have an absorbed air harmful matter ability reaches operating temperature, then this purification plant can not need heat transmitter 7, and waste gas can directly flow through from interior pipe 1.
One end at air inlet 201 places at outer tube 2 places is provided with flow controller 4, and its flow controller 4 adopts multi-form being connected on the outer tube 2 such as welding or flange plate.The function of flow controller 4 is that restriction enters the air mass flow of purification plant, thereby makes purification plant have the highest working efficiency all the time.Wherein, the design of flow controller 4 also can be varied, is illustrated in figure 3 as a kind of simply and effectively flow controller 4, this flow controller 4 is circular, just in time can be installed in outer tube 2 ends, and flow controller 4 upper punches or be drilled with some through holes 9, this through hole 9 be shaped as adjustable circle or other shape.By regulating through hole 9 density and/or through hole 9 diameters on the flow controller 4, change flow controller 4 opening areas, thereby obtain the required air flow.When air draught flows through from flow controller 4, can produce certain pressure reduction, and flow is more big, the pressure reduction that produces is more big, and when flow reached some values, flow controller 4 will stop the excess enthalpy air to pass through by pressure reduction adjustments of gas flow.Meanwhile, this flow controller 4 can stop that also the larger particles object enters purification plant in the restriction gas flow, protect this purification plant.
The end face at air outlet slit place, outer tube 2 place is provided with mudguard wing 6, and by multi-form being connected on the outer tube 2 such as welding or flange plate, the filter screen that does not cause excessive pressure reduction can be adopted in the surface, and major function is can block silt dust to enter purification plant.
Comprehensively above-mentioned, this air cleaning unit is installed on outlet pipe 10 pipelines by oil-engine driven automobile or other movement means, when automobile or movement means to overtake the time, produce the air stream opposite with its moving direction, when air flows in the purification plant through air inlet 201, the carrier 3 of the chemical substance that scribbles catalyzer or some tool absorbed air harmful matter ability of flowing through, the chemical substance that airborne harmful substance is converted in carrier 3 on harmless material or the suppressed by vector 3 absorbs, Qing Jie air flows in the atmosphere by purification plant air outlet slit 202 at last, has realized the purification of air harmful matter.
Claims (11)
1. air cleaning unit, it is characterized in that, comprise interior pipe (1) and be sleeved on the outer outer tube (2) of described interior pipe (1), pipe (1) one end is for connecting the exhaust gas entrance (101) of internal-combustion engine vent-pipe (10) in described, the other end is waste gas outlet (102), described outer tube (2) two ends are respectively air inlet (201) and air outlet slit (202), are provided with the carrier (3) that can remove harmful matter in the air in the outer tube (2) between described air inlet (201), the air outlet slit (202).
2. a kind of air cleaning unit according to claim 1 is characterized in that, described carrier (3) contains catalyst coat or has the chemical substance coating of absorbed air harmful matter ability.
3. a kind of air cleaning unit according to claim 1 is characterized in that, described carrier (3) cross section is made of passage (8), and described passage (8) surface is provided with catalyst coat or has the chemical substance coating of absorbed air harmful matter ability.
4. a kind of air cleaning unit according to claim 1 is characterized in that, described carrier (3) includes some beads, and described bead surface is provided with catalyst coat or has the chemical substance coating of absorbed air harmful matter ability.
5. a kind of air cleaning unit according to claim 1, it is characterized in that, described carrier (3) is for being used for removing the particulate filter of particulate in air, and the described filter surfaces that contacts with air is provided with catalyst coat and/or has the chemical substance coating of absorbed air harmful matter ability.
6. according to the arbitrary described a kind of air cleaning unit of claim 1-5, it is characterized in that, be provided with heat transmitter (7) in the described interior pipe (1) corresponding with described carrier (3).
7. a kind of air cleaning unit according to claim 6 is characterized in that, is provided with liner (5) between described carrier (3) and the described outer tube (2).
8. a kind of air cleaning unit according to claim 1 is characterized in that, described outer tube (2) end that is positioned at described air inlet (201) is provided with flow controller (4), and described flow controller (4) becomes frustoconic shape, and the bigger end of opening outwardly.
9. a kind of air cleaning unit according to claim 8 is characterized in that, described flow controller (4) surface is provided with some through holes (9), and described through hole (9) density and/or diameter can be regulated.
10. a kind of air cleaning unit according to claim 1 is characterized in that, described outer tube (2) end that is positioned at described air outlet slit (202) is provided with netted mudguard wing (6).
11. a kind of air cleaning unit according to claim 6 is characterized in that, pipe (1) diameter was greater than the diameter at pipe (1) two ends in described in described heat transmitter (7) correspondence was described, and described outer tube (2) equates with described interior pipe (1) thickness difference.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320092593 CN203214135U (en) | 2013-02-28 | 2013-02-28 | Air purification device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320092593 CN203214135U (en) | 2013-02-28 | 2013-02-28 | Air purification device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203214135U true CN203214135U (en) | 2013-09-25 |
Family
ID=49203680
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320092593 Expired - Lifetime CN203214135U (en) | 2013-02-28 | 2013-02-28 | Air purification device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203214135U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104018922A (en) * | 2013-02-28 | 2014-09-03 | 魏强 | Air purifying device |
| CN106051755A (en) * | 2016-07-25 | 2016-10-26 | 山东巨亚环保科技股份有限公司 | Flue gas purifying device and circulating fluidized bed boiler with device |
-
2013
- 2013-02-28 CN CN 201320092593 patent/CN203214135U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104018922A (en) * | 2013-02-28 | 2014-09-03 | 魏强 | Air purifying device |
| CN104018922B (en) * | 2013-02-28 | 2017-01-11 | 魏强 | Air purifying device |
| CN106051755A (en) * | 2016-07-25 | 2016-10-26 | 山东巨亚环保科技股份有限公司 | Flue gas purifying device and circulating fluidized bed boiler with device |
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