CN104131865A - Tail gas treatment device for internal combustion engine - Google Patents

Tail gas treatment device for internal combustion engine Download PDF

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Publication number
CN104131865A
CN104131865A CN201410341882.8A CN201410341882A CN104131865A CN 104131865 A CN104131865 A CN 104131865A CN 201410341882 A CN201410341882 A CN 201410341882A CN 104131865 A CN104131865 A CN 104131865A
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China
Prior art keywords
tail gas
tail
shower nozzle
processing unit
aqueous solution
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Granted
Application number
CN201410341882.8A
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Chinese (zh)
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CN104131865B (en
Inventor
沈奇丽
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ANHUI WANHANG RAIL TRANSIT EQUIPMENT Co.,Ltd.
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沈奇丽
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Abstract

The invention discloses a tail gas treatment device for an internal combustion engine. The tail gas treatment device for the internal combustion engine comprises a tail gas guide tube, a water solution tank containing adsorbents and a water solution inlet formed in the tank. The tank is divided into a filter chamber and multiple buffer chambers through separation plates, a series flow port allowing gas and water to circulate is formed in each separation plate, a filter device is arranged in the filter chamber, one end of the tail gas guide tube is connected to a tail gas exhaust port of the internal combustion engine, and the other end of the tail gas guide tube is connected into the filter chamber. The last buffer chamber is connected outwards with a radiating tube, the other end of the radiating tube is connected into the filter chamber to form a circulation pipeline of water solutions, and the last buffer chamber is further provided with an exhaust port. A filter device formed by multiple densified filters is arranged in the tank containing the water solutions and the adsorbents, PM2.5 and other hazardous substances in tail gas can be absorbed effectively, and the tail gas treatment device for the internal combustion engine has the advantages of being good in tail gas purification effect, small in size and convenient to use.

Description

Processing unit for tail
Technical field
The present invention relates to a kind of exhaust gas processing device, be specifically related to a kind of processing unit for tail.
Background technique
Along with the raising of industrialization development and people's living standard, China's internal-combustion engines vehicle has the phenomenon increasing severely year by year, also has in addition the use of various types of internal-combustion engines.In exhaust gases of internal combustion engines, contain a large amount of harmful matters, as carbon monoxide, hydrocarbon, oxynitrides, sulfur dioxide and imperfect combustion carbon granule thing etc., vehicle exhaust is unprocessed mostly just directly enters in atmosphere, incident is the atmospheric pollution that a large amount of exhaust emissionss brings, people's health and physical environment are had to great harm, particularly PM2.5.PM2.5 is fine particle, refers to that environmental aerodynamics equivalent diameter is less than or equal to the particulate matter of 2.5 microns.PM2.5 is mainly derived from motor vehicle exhaust emission, although PM2.5 cannot see, can not touch, and it is the arch-criminal of pollution of atmosphere, the killer of human health, because it can be suspended in air the long period, can directly by people, be sucked alveolar, even incorporate blood, the cell in human body is damaged.
At present, the scheme of processing vehicle exhaust PM2.5 both at home and abroad mainly contains following several: 1, add chemical reagent, reduce the discharge of PM2.5 with chemical mode; 2, physics spray method, reduces discharging modes by vehicle exhaust PM2.5; 3, tail gas filtering form reduces PM2.5 discharge.Above-mentioned three kinds of methods all can play a role to the discharge of PM2.5, and wherein the method for filtered version reduction PM2.5 is comparatively general.The Chinese invention patent that is 201210369746.0 as application number discloses a kind of automobile tail gas filtering device, comprise filter sheet, described filter sheet is clamped between two metal mesh sheets, separating sealing filtering box with cover is the super thick sheet filter cotton of left and right two Room, in the left and right indoor water of filtering box, all balance purification stone and active carbon, in the side upper end of left chamber, there is one end to have a hole, surrounding passes into the discarded outlet pipe joining with silencing apparatus hermetically, and the dried up face of the mouth of pipe of discarded outlet pipe is about 3 centimeters; The dewatering orifice of twisting screw is arranged at the bottom, right ventricle of filtering box, has an air outlet hole on top.This kind of automobile tail gas filtering device is simple in structure, the tail gas tool giving off is had certain effect, but its filter sheet adopting easily stops up by particulate matter, cause vent gas treatment weak effect, filtrating equipment easily to damage, and this tail gas filter volume is larger, use inconvenience.
Summary of the invention
For above-mentioned deficiency, technical problem to be solved by this invention is to provide a kind ofly can effectively process PM2.5 and other harmful matters containing in exhaust gases of internal combustion engines, has the processing unit for tail that treatment effect is good, easy to use.
For addressing the above problem, the present invention is achieved through the following technical solutions:
Processing unit for tail, the aqueous solution casing that comprises exhaust duct, contains sorbent and be located at the aqueous solution import on casing, described casing is divided into Yi Ge filter chamber and a plurality of buffer cell by dividing plate, each dividing plate is provided with the crossfire mouth circulating mutually for air water, in described filter chamber, be provided with filtrating equipment, exhaust port, the other end that one end of described exhaust duct connects internal-combustion engine access in filter chamber; Last buffer cell has picked out heat dissipating pipe, the other end access filter chamber of this heat dissipating pipe, and the circulation loop of the formation aqueous solution, is also provided with relief opening on last buffer cell.
Described filtrating equipment can comprise at least 1 encryption filter, described encryption filter comprises disappear power cylinder and be located at the shower nozzle that tail gas pressure disappears in power cylinder of tail gas pressure, described tail gas pressure disappears hollow porous cylindrical fireworks that power cylinder is at least 2 bottom openings, different-diameter from large to little sheathed forming successively, and has height difference between the top of porous cylindrical fireworks.
The bottom of described shower nozzle is for for passing into the import of tail gas, and the top of shower nozzle is provided with the shower nozzle outlet for gas-liquid injection, and the both sides of shower nozzle are provided with for water solution flow and enter side mouth in shower nozzle and the top of side mouth is provided with the baffle plate that prevents that tail gas from overflowing.The structure of this shower nozzle is from passing into tail gas and the pressure-acting that the aqueous solution that enters shower nozzle produces, and makes gas-liquid mixed, is ejected into tail gas pressure and disappears on power cylinder, and therefore described shower nozzle all will be immersed in water to inlet part from side mouth.
Described baffle plate and side opening's edge shower nozzle direction straight down are preferably acute angle.
Described exhaust duct can directly access in filter chamber, also can be branched off in many tail gas arm access filter chambers, in order to make purifying effect better, encryption filter in Bing Yu filter chamber matches, described exhaust duct one end connects internal combustion engine tail gas discharge mouth, and the other end is branched off in many tail gas arm access filter chambers, is connected with the shower nozzle bottom being immersed in water respectively; In order to improve purifying effect and radiating efficiency, described last buffer cell picks out the heat dissipating pipe with tail gas arm equivalent root, and the other end of every heat dissipating pipe is connected with a tail gas arm respectively, forms the circulation loop of the aqueous solution.
Further, described sorbent can be active carbon and lime powder.
The aqueous solution in casing is constantly vaporized or consumes in continuous cleaning of off-gas process, can constantly reduce, for guaranteeing that this processing unit for tail can work long hours, described aqueous solution import can be provided with an automatic water compensating valve, and this automatic water compensating valve is connected with the secondary water tank in order to moisturizing.
Described buffer cell can be 2, and described buffer cell reduces tail gas pressure-acting in order to buffering.
Design principle of the present invention is:
The tail gas of discharging from internal combustion engine tail gas discharge mouth is high-temperature high-pressure air flow, it sprays in the casing that the aqueous solution is housed and contains sorbent by exhaust duct, tail gas and the aqueous solution enter the encryption filter shower nozzle in filter chamber, under the pressure-acting of tail gas, tail gas and aqueous solution are also carried out height mixed aerosol in tail gas pressure disappears power cylinder, make the PM2.5 and other hydronitrogen that in exhaust gases of internal combustion engines, contain be adsorbed agent absorption, be deposited in water, the harmful gas in tail gas is effectively purified.The aqueous solution flows out from filter chamber, after last buffer cell, flows into heat dissipating pipe, then flows into filter chamber from heat dissipating pipe, forms the circulation loop of the aqueous solution, has not only further purified tail gas, has also reduced the temperature of tail gas, makes the tail gas of discharge reach effluent standard value.
Beneficial effect of the present invention is:
1, in the casing that the aqueous solution is housed and contains sorbent, be provided with the filtrating equipment being formed by a plurality of encryption filters, PM2.5 in absorption tail gas and other harmful matters effectively, casing, exhaust duct and heat dissipating pipe form the circulation loop of the aqueous solution, not only improve the dissolubility of the material in tail gas, also greatly reduce the temperature of tail gas;
2, the tail gas pressure setting of power cylinder and a plurality of buffer cells that disappears, has reduced the pressure of tail gas, has eliminated tail gas noise;
3, the sorbent that contains active carbon, lime powder in the aqueous solution, can further improve purifying effect, and necessary exhaust gas processing device all can be located in same casing, the volume of casing, according to self vehicle designed, designed, has volume feature little, easy to use.
Accompanying drawing explanation
Fig. 1 is a kind of transverse sectional view of this processing unit for tail;
Fig. 2 is the structural representation of shower nozzle;
Fig. 3 is a kind of structural representation of this processing unit for tail;
Fig. 4 is the use phase diagram of single encryption filter.
Number in the figure is: 1, casing; 2, filter chamber; 3, buffer cell; 4, dividing plate; 5, filtrating equipment; 6, encryption filter; 7, exhaust duct; 8, relief opening; 9, crossfire mouth; 10, tail gas arm; 11, aqueous solution import; 12, porous cylindrical fireworks; 13, shower nozzle; 13-1, import; 13-2, shower nozzle outlet; 13-3, side mouth; 13-4, baffle plate.
Embodiment
Below in conjunction with specific embodiments and the drawings, the present invention is further explained, but not in order to limit the present invention.
As shown in Figure 1, processing unit for tail, the aqueous solution casing 1 that comprises exhaust duct 7, contains sorbent and be located at the aqueous solution import 11 on casing 1, described sorbent is active carbon and lime powder, the content of its each comfortable aqueous solution can be active carbon 5%, lime powder 2%, also can other arbitrary values.Described aqueous solution import 11 is provided with an automatic water compensating valve, and this automatic water compensating valve is connected with the secondary water tank in order to moisturizing.Described casing 1 is divided into Yi Ge filter chamber 2 and a plurality of buffer cell 3 by dividing plate 4, and described buffer cell 3 can be for more than 2 or 2, and the present embodiment is 2.On last buffer cell 2, be also provided with relief opening 8.Each dividing plate 4 is provided with for the mutual crossfire mouth 9 of circulation of air water, and tail gas, after filter chamber 2 purifies, is flow to last buffer cell 2 and discharged or for motor by relief opening 8 by crossfire mouth 9; And the aqueous solution is also in casing 1 circulation, flow to last buffer cell 3 by heat dissipating pipe and under the effect of tail gas pressure, water solution flow, in exhaust duct 7, returns in casing 1, constantly circulation.
As shown in Figure 4, in described filter chamber 2, be provided with filtrating equipment 5, described filtrating equipment 5 comprises at least 1 encryption filter 6, can be 1,2,3 or more, and in the present embodiment, filtrating equipment 5 includes 4 encryption filters 6.This encryption filter 6 comprises disappear power cylinder and be located at the shower nozzle 13 that tail gas pressure disappears in power cylinder of tail gas pressure, described tail gas pressure disappear power cylinder be the hollow porous cylindrical fireworks 12 of 3 bottom openings, different-diameter from large to little sheathed forming successively, and there is height difference between the top of porous cylindrical fireworks 12.
As shown in Figure 3, in the exhaust port of one end of described exhaust duct 7 connection internal-combustion engine, the other end access filter chamber 2; The present embodiment is preferably, and described exhaust duct one end connects internal combustion engine tail gas discharge mouth, and the other end is branched off in many tail gas arms 10 access filter chambers 2, is connected with shower nozzle 13 bottoms that are immersed in water respectively.Last buffer cell 3 picks out the heat dissipating pipe with tail gas arm 10 equivalent roots, the other end access filter chamber 2 of heat dissipating pipe, be every heat dissipating pipe one end from last buffer cell 3 pick out, the other end is all connected with a tail gas arm 10, forms the circulation loop of the aqueous solution.
Shown in Fig. 2, the bottom of described shower nozzle 13 is the import 13-1 for passing into tail gas, the top of shower nozzle 13 is provided with the shower nozzle outlet 13-2 for gas-liquid injection, and the both sides of shower nozzle 13 are provided with for water solution flow and enter side mouth 13-3 in shower nozzle 13 and the top of side mouth 13-3 is provided with the baffle plate 13-4 that prevents that tail gas from overflowing.Described baffle plate 13-4 and side mouth 13-3 are acute angle along shower nozzle 13 direction straight down.
The foregoing is only preferred embodiment of the present invention, and need not limit the present invention, all any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.

Claims (8)

1. processing unit for tail, the aqueous solution casing (1) that comprise exhaust duct (7), contains sorbent and be located at the aqueous solution import (11) on casing (1), it is characterized in that: described casing (1) is divided into Yi Ge filter chamber (2) and a plurality of buffer cell (3) by dividing plate (4), each dividing plate (4) is provided with the crossfire mouth (9) circulating mutually for air water, in described filter chamber (2), be provided with filtrating equipment (5), exhaust port, the other end that one end of described exhaust duct (7) connects internal-combustion engine access in filter chamber (2); Last buffer cell (3) has picked out heat dissipating pipe, the other end access filter chamber (2) of this heat dissipating pipe, and the circulation loop of the formation aqueous solution, is also provided with relief opening (8) on last buffer cell (3).
2. processing unit for tail according to claim 1, it is characterized in that: described filtrating equipment (5) comprises at least 1 encryption filter (6), described encryption filter (6) comprises disappear power cylinder and be located at the shower nozzle (13) that tail gas pressure disappears in power cylinder of tail gas pressure, described tail gas pressure disappears hollow porous cylindrical fireworks (12) that power cylinder is at least 2 bottom openings, different-diameter from large to little sheathed forming successively, and has height difference between the top of porous cylindrical fireworks (12).
3. processing unit for tail according to claim 2, it is characterized in that: the bottom of described shower nozzle (13) is the import (13-1) for passing into tail gas, the top of shower nozzle (13) is provided with the shower nozzle outlet (13-2) for gas-liquid injection, and the both sides of shower nozzle (13) are provided with for water solution flow and enter side mouth (13-3) in shower nozzle and the top of side mouth (13-3) is provided with the baffle plate (13-4) that prevents that tail gas from overflowing.
4. processing unit for tail according to claim 3, is characterized in that: described baffle plate (13-4) is acute angle with side mouth (13-3) along shower nozzle direction straight down.
5. processing unit for tail according to claim 1, it is characterized in that: described exhaust duct (7) one end connects internal combustion engine tail gas discharge mouth, the other end is branched off in many tail gas arms (10) access filter chambers (2), is connected with shower nozzle (13) bottom being immersed in water respectively; Described last buffer cell (3) picks out the heat dissipating pipe with tail gas arm (10) equivalent root, and the other end of every heat dissipating pipe is all connected with a tail gas arm (10), forms the circulation loop of the aqueous solution.
6. processing unit for tail according to claim 1, is characterized in that: described sorbent is active carbon and lime powder.
7. processing unit for tail according to claim 1, is characterized in that: described aqueous solution import (11) is provided with an automatic water compensating valve, and this automatic water compensating valve is connected with the secondary water tank in order to moisturizing.
8. processing unit for tail according to claim 1, is characterized in that: described buffer cell (3) is 2.
CN201410341882.8A 2014-07-17 2014-07-17 Processing unit for tail Active CN104131865B (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
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CN104131865B CN104131865B (en) 2016-08-17

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104989497A (en) * 2015-06-08 2015-10-21 含山县全兴内燃机配件有限公司 Efficient filtration neutralization buffering system
CN105507987A (en) * 2015-12-31 2016-04-20 芜湖恒耀汽车零部件有限公司 Energy-saving, environment-friendly and corrosion-resistant automobile exhaust pipe purifier

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003301712A (en) * 2002-04-09 2003-10-24 Kanagawa Prefecture Exhaust emission control device of diesel engine
CN101598056A (en) * 2009-07-04 2009-12-09 汪荣林 Exhaust gas purification muffler for motor vehicle with internal combustion engine
CN202039924U (en) * 2011-03-04 2011-11-16 林平 Waste gas purification device of diesel internal combustion engine
CN102720567A (en) * 2012-06-26 2012-10-10 沈奇丽 Tail gas treating device of internal combustion engine
CN203962113U (en) * 2014-07-17 2014-11-26 沈奇丽 Processing unit for tail

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003301712A (en) * 2002-04-09 2003-10-24 Kanagawa Prefecture Exhaust emission control device of diesel engine
CN101598056A (en) * 2009-07-04 2009-12-09 汪荣林 Exhaust gas purification muffler for motor vehicle with internal combustion engine
CN202039924U (en) * 2011-03-04 2011-11-16 林平 Waste gas purification device of diesel internal combustion engine
CN102720567A (en) * 2012-06-26 2012-10-10 沈奇丽 Tail gas treating device of internal combustion engine
CN203962113U (en) * 2014-07-17 2014-11-26 沈奇丽 Processing unit for tail

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104989497A (en) * 2015-06-08 2015-10-21 含山县全兴内燃机配件有限公司 Efficient filtration neutralization buffering system
CN105507987A (en) * 2015-12-31 2016-04-20 芜湖恒耀汽车零部件有限公司 Energy-saving, environment-friendly and corrosion-resistant automobile exhaust pipe purifier

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Effective date of registration: 20201020

Address after: Wuhe County Industrial Zone South of the 233300 Anhui city of Bengbu province Xing Hui Road No. 30

Patentee after: ANHUI WANHANG RAIL TRANSIT EQUIPMENT Co.,Ltd.

Address before: 535000, room 5, building 16, 102 Daling Road, Qinnan District, the Guangxi Zhuang Autonomous Region, Qinzhou

Patentee before: Shen Qili