CN110219719B - Constant pressure difference wetting surface tail gas particle adsorption and purification device - Google Patents

Constant pressure difference wetting surface tail gas particle adsorption and purification device Download PDF

Info

Publication number
CN110219719B
CN110219719B CN201910429059.5A CN201910429059A CN110219719B CN 110219719 B CN110219719 B CN 110219719B CN 201910429059 A CN201910429059 A CN 201910429059A CN 110219719 B CN110219719 B CN 110219719B
Authority
CN
China
Prior art keywords
adsorption
water
box body
tail gas
substrate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201910429059.5A
Other languages
Chinese (zh)
Other versions
CN110219719A (en
Inventor
谢小鹏
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
College Of Science And Technology Of Dongguan Of City College
Original Assignee
College Of Science And Technology Of Dongguan Of City College
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by College Of Science And Technology Of Dongguan Of City College filed Critical College Of Science And Technology Of Dongguan Of City College
Priority to CN201910429059.5A priority Critical patent/CN110219719B/en
Publication of CN110219719A publication Critical patent/CN110219719A/en
Application granted granted Critical
Publication of CN110219719B publication Critical patent/CN110219719B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/02Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
    • F01N3/04Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust using liquids

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Treating Waste Gases (AREA)
  • Separation Of Particles Using Liquids (AREA)

Abstract

The invention relates to an isobaric differential wetting surface tail gas particle adsorption purification device, which comprises a box body, a water tank and a plurality of adsorption units, wherein the box body is provided with an air inlet and an air outlet; the adsorption unit comprises a support plate, an adsorption substrate and a high-temperature resistant adsorption layer, a water injection groove is reserved between the adsorption substrate and the support plate, the adsorption substrate is provided with a plurality of water seepage holes, and the high-temperature resistant adsorption layer is attached to the side surface of the adsorption substrate; the water injection groove is communicated with the water tank, so that water of the water tank is injected into the water injection groove and is permeated into the high-temperature resistant adsorption layer through the water permeation hole to form a uniform water film; the bottom of the box body is provided with water, and the bottom of the adsorption unit is spaced from the water surface. When in use, a part of tail gas is in flapping contact with the water surface at the bottom of the box body, and adsorbed particles are settled; the other part of tail gas moves in the box body and collides with the water film of the high-temperature resistant adsorption layer of the adsorption unit, particles in the tail gas are soaked in water and weight increased to be settled at the bottom of the box body, and after the tail gas is treated by the method, the tail gas is discharged into the air through the air outlet, so that the structure is simple, and the adsorption effect is good.

Description

Constant pressure difference wetting surface tail gas particle adsorption and purification device
Technical Field
The invention relates to the technical field of diesel engine tail gas purification, in particular to an isobaric differential wetting surface tail gas particle adsorption purification device.
Background
Diesel engines are widely accepted because of strong dynamic property, good economic performance and high thermal efficiency, and are widely applied in the field of vehicles. The pollution to the environment caused by the additional tail gas emission is also more and more serious, so that the control and the treatment of the automobile tail gas emission are enhanced. The pollutants discharged by the automobile exhaust include carbon monoxide, hydrocarbon, oxynitride and other solid particles which have adverse effects on human bodies. The solid particles have complex components and strong adsorption capacity, can adsorb various metal dust, benzopyrene which is a strong cancerogenic substance, pathogenic microorganisms and the like, and the solid suspended particles enter the lung of a human body along with respiration and stay at different parts of the respiratory tract, so that respiratory diseases are easily caused; when suspended particles accumulate to a critical concentration, malignant tumors may be stimulated; in addition, the suspended particles can directly contact the skin and eyes, clog hair follicles and sweat glands of the skin, cause dermatitis and conjunctivitis, and even may cause corneal damage. Therefore, the solid particles in the automobile exhaust are directly discharged into the air, which has great harm to the environment and seriously affects the life safety of people. In conclusion, reducing the exhaust emission of automobiles gradually becomes a measure for the environmental protection capability of a city.
The existing main measures for reducing the emission of the diesel engine are divided into pretreatment, internal treatment and post-treatment of tail gas. The pretreatment mainly improves the quality of diesel oil; the purification in the machine mainly improves the combustion process; the post-treatment mainly uses a particulate filter (DPF), an oxidation catalyst (DOC), or the like to reduce the PM emission. However, the existing machine post-treatment equipment is complex, high in cost and poor in adsorption effect.
Disclosure of Invention
Aiming at the technical problems in the prior art, the invention provides the tail gas particle adsorption purification device with good adsorption effect and simple structure and with equal pressure difference wetting surface.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the tail gas particle adsorption purification device comprises a box body, a water tank and a plurality of adsorption units arranged in the box body, wherein the box body is provided with an air inlet and an air outlet, and the water tank is arranged at the top of the box body; each adsorption unit comprises a support plate, an adsorption substrate and a high-temperature resistant adsorption layer, the adsorption substrate is arranged on the side of the support plate, a water injection groove is reserved between the adsorption substrate and the support plate, the adsorption substrate is provided with a plurality of water seepage holes, and the high-temperature resistant adsorption layer is attached to the side of the adsorption substrate far away from the support plate; the water injection groove is communicated with the water tank, so that water of the water tank is injected into the water injection groove and permeates into the high-temperature resistant adsorption layer through the water seepage holes to form a uniform water film; the bottom of the box body is provided with water, and the bottom of the adsorption unit is spaced from the water surface at the bottom of the box body.
Preferably, the adsorption units are transversely arranged in parallel, and gaps for the tail gas to pass through are reserved between two adjacent adsorption units.
Preferably, the pore diameter of the water seepage holes at the upper part of the adsorption substrate is larger than that of the lower part, and/or the distribution density of the water seepage holes at the upper part of the adsorption substrate is larger than that of the lower part, so that the outer surface of the high-temperature resistant adsorption layer forms a uniform water film under the action of water pressure.
Preferably, the water level in the water tank can be adjusted to adjust the pressure in the water injection tank, thereby adjusting the water seepage quantity of the water seepage hole.
Preferably, both sides of the supporting plate of each adsorption unit are respectively provided with an adsorption substrate and a high-temperature resistant adsorption layer.
Preferably, the bottom of the box body is provided with a plurality of mounting grooves, and the tops of the plurality of adsorption units are respectively inserted into the plurality of mounting grooves, so that the water injection groove is communicated with the water tank.
Preferably, a drain hole is arranged at the lower part of the box body.
Preferably, the bottom of the adsorption unit is provided with a sealing edge, so that the bottom of the water injection groove is sealed.
Preferably, the water tank is fixedly connected with the tank body through bolts, and a sealing gasket is arranged between the tank body and the water tank.
Preferably, a spoiler is arranged on the inner wall of the box body.
The invention has the beneficial effects that:
when the device is used, tail gas enters the box body from the air inlet, a part of the tail gas is in flapping contact with the water surface at the bottom of the box body, particles of the tail gas are adsorbed on the water surface, and the adsorbed particles are settled; the other part of tail gas moves in the tank body and collides with a water film formed by the high-temperature resistant adsorption layer of the adsorption unit (namely, water in the water tank permeates into the high-temperature resistant adsorption layer through the water injection groove and then the water seepage holes, so that the high-temperature resistant adsorption layer is soaked and a water film is formed), and particles in the tail gas are soaked in water and weight is increased, so that the particles are settled to the bottom of the tank body. After the water film adsorbs the particulate matters and subsides, water can form a water film capable of adsorbing the particulate matters of the tail gas again on the high-temperature resistant adsorption layer through the water seepage holes due to the water pressure effect in the water injection groove. The tail gas is discharged into the air through the air outlet after the treatment. Compared with the prior art, the isobaric differential wetting surface tail gas particle adsorption purification device disclosed by the invention is simple in structure and good in adsorption effect.
Drawings
Fig. 1 is a perspective view of an isobaric differential wetting surface exhaust particle adsorption purification device of the present invention.
Fig. 2 is an exploded view of the isopiestic differential wetting surface exhaust particulate adsorption purification device of the present invention.
Fig. 3 is a schematic structural diagram of the adsorption unit.
Fig. 4 is a schematic structural diagram of the adsorption substrate.
Reference numerals:
the box body 1, the air inlet 11, the air outlet 12, the drain hole 13 and the spoiler 14;
a water tank 2 and a mounting groove 21;
adsorption unit 3, backup pad 31, adsorption base plate 32, high temperature resistant adsorbed layer 33, water injection groove 34, infiltration hole 35.
Detailed Description
The present invention will be described in detail with reference to specific embodiments and drawings.
The adsorption and purification device for the tail gas particles with the equal pressure difference wetting surface in the embodiment, as shown in fig. 1 to 4, comprises a box body 1, a water tank 2 and a plurality of wavy adsorption units 3 vertically arranged in the box body 1, wherein the adsorption units 3 are transversely arranged in parallel, and a gap for the tail gas to pass through is reserved between every two adjacent adsorption units 3. The box 1 is provided with an air inlet 11 and an air outlet 12, the lower part of the box 1 is provided with a drain hole 13, and the drain hole 13 is in a normally closed state. The inner wall of the box body 1 is provided with a spoiler 14 for increasing the collision probability of the tail gas in the box body 1 and the adsorption unit 3. The water tank 2 is arranged at the top of the tank body 1, the water tank 2 is fixedly connected with the tank body 1 through bolts, and a sealing gasket is arranged between the tank body 1 and the water tank 2. The bottom of the box body 1 is provided with a plurality of mounting grooves 21, and the tops of the plurality of adsorption units 3 are respectively fixedly inserted into the plurality of mounting grooves 21. Each adsorption unit 3 comprises a support plate 31, two adsorption substrates 32 and a high-temperature resistant adsorption layer 33, wherein the adsorption substrates 32 are arranged on two sides of the support plate 31 in parallel, and the high-temperature resistant adsorption layer 33 is attached to the side surface, away from the support plate 31, of the adsorption substrate 32. A water injection groove 34 is reserved between the adsorption substrate 32 and the support plate 31, and an edge seal is arranged at the bottom of the adsorption unit 3, so that the bottom of the water injection groove 34 is sealed, and the water injection groove 34 is communicated with the water tank 2, so that water of the water tank 2 is injected into the water injection groove 34. The adsorption substrate 32 is provided with a plurality of water seepage holes 35, the water seepage holes 35 penetrate through two side surfaces of the adsorption substrate, water in the water injection groove 34 seeps into the high temperature resistant adsorption layer 33 through the water seepage holes 35, wets the high temperature resistant adsorption layer 33 and forms a water film for adhering tail gas particles.
The water pressure in the water injection groove 34 from top to bottom gradually increases, in order to form a uniform water film on the high temperature resistant adsorption layer 33, the water seepage holes 35 on the adsorption substrate 32 are in a shape of big top and small bottom and are densely distributed and arranged at the bottom, namely, the pore diameter of the water seepage holes 35 on the upper part of the adsorption substrate 32 is larger than that of the lower part, and the distribution density of the water seepage holes 35 on the upper part of the adsorption substrate 32 is larger than that of the lower part, so that the outer surface of the high temperature resistant adsorption layer 33 forms a uniform water film under the action of water pressure, and the adsorption effect of the high temperature resistant adsorption layer 33 is greatly improved. Or the water penetration holes 35 of the adsorption substrate 32 gradually decrease in diameter from top to bottom, and gradually decrease in density. The water level in the water tank 2 can be adjusted to adjust the pressure in the water injection groove 34, thereby adjusting the water seepage amount of the water seepage hole 35. The bottom of the box body 1 is filled with water, and the bottom of the adsorption unit 3 is spaced from the water surface at the bottom of the box body 1.
When the device is used, tail gas enters the box body 1 from the air inlet 11, a part of the tail gas is in flapping contact with the water surface at the bottom of the box body 1, particles of the tail gas are adsorbed on the water surface, and the adsorbed particles are settled; the other part of the tail gas moves in the box body 1 and collides with the water film of the high-temperature resistant adsorption layer 33 of the adsorption unit 3, and the particulate matters in the tail gas are soaked in water and are increased in weight so as to be settled to the bottom of the box body 1. After the partial water film adsorbs the particles and settles, the water seepage holes 35 can be filled with the water film again in the high temperature resistant adsorption layer 33 due to the water pressure. After the tail gas is treated, the tail gas is discharged into the air through the air outlet 12. When the water at the bottom of the box body 1 is settled and more particles need to be replaced, the water draining holes 13 are opened to drain.
Finally, it should be noted that the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made to the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention.

Claims (7)

1. The constant pressure difference wets the surface and adsorbs the purifying device, characterized by: the adsorption device comprises a box body, a water tank and a plurality of adsorption units arranged in the box body, wherein the box body is provided with an air inlet and an air outlet, and the water tank is arranged at the top of the box body; each adsorption unit comprises a support plate, an adsorption substrate and a high-temperature resistant adsorption layer, the adsorption substrate is arranged on the side of the support plate, a water injection groove is reserved between the adsorption substrate and the support plate, the adsorption substrate is provided with a plurality of water seepage holes, and the high-temperature resistant adsorption layer is attached to the side of the adsorption substrate far away from the support plate; the water injection groove is communicated with the water tank, so that water of the water tank is injected into the water injection groove and permeates into the high-temperature resistant adsorption layer through the water seepage holes to form a uniform water film; the bottom of the box body is provided with water, and the bottom of the adsorption unit is spaced from the water surface at the bottom of the box body;
the pore diameter of the water seepage holes at the upper part of the adsorption substrate is larger than that of the lower part of the adsorption substrate, and/or the distribution density of the water seepage holes at the upper part of the adsorption substrate is larger than that of the lower part of the adsorption substrate, so that the outer surface of the high-temperature resistant adsorption layer forms a uniform water film under the pressure of water;
the water level in the water tank can be adjusted to adjust the pressure intensity in the water injection tank, so as to adjust the water seepage quantity of the water seepage hole;
the two sides of the supporting plate of each adsorption unit are respectively provided with an adsorption substrate and a high-temperature resistant adsorption layer;
the water injection groove is communicated with the water tank.
2. The isobaric differential wetting surface exhaust particulate adsorption purification device of claim 1, wherein: the adsorption units are transversely arranged in parallel, and gaps for the tail gas to pass through are reserved between two adjacent adsorption units.
3. The isobaric differential wetting surface exhaust particulate adsorption purification device of claim 1, wherein: the bottom of box is opened there is a plurality of mounting grooves, and the top of a plurality of adsorption units inserts respectively in a plurality of mounting grooves to make water injection groove and water tank intercommunication.
4. The isobaric differential wetting surface exhaust particulate adsorption purification device of claim 1, wherein: the lower part of the box body is provided with a drain hole.
5. The isobaric differential wetting surface exhaust particulate adsorption purification device of claim 1, wherein: the bottom of the adsorption unit is provided with an edge sealing, so that the bottom of the water injection groove is sealed.
6. The isobaric differential wetting surface exhaust particulate adsorption purification device of claim 1, wherein: the water tank is fixedly connected with the box body through bolts, and a sealing gasket is arranged between the box body and the water tank.
7. The isobaric differential wetting surface exhaust particulate adsorption purification device of claim 1, wherein: the inner wall of the box body is provided with a spoiler.
CN201910429059.5A 2019-05-22 2019-05-22 Constant pressure difference wetting surface tail gas particle adsorption and purification device Active CN110219719B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910429059.5A CN110219719B (en) 2019-05-22 2019-05-22 Constant pressure difference wetting surface tail gas particle adsorption and purification device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910429059.5A CN110219719B (en) 2019-05-22 2019-05-22 Constant pressure difference wetting surface tail gas particle adsorption and purification device

Publications (2)

Publication Number Publication Date
CN110219719A CN110219719A (en) 2019-09-10
CN110219719B true CN110219719B (en) 2023-12-01

Family

ID=67817962

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910429059.5A Active CN110219719B (en) 2019-05-22 2019-05-22 Constant pressure difference wetting surface tail gas particle adsorption and purification device

Country Status (1)

Country Link
CN (1) CN110219719B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110541743B (en) * 2019-09-29 2024-02-27 华南理工大学 Spiral diesel engine tail gas purifying device and purifying method thereof
CN111691950A (en) * 2020-05-25 2020-09-22 华南理工大学 Surface gravel water seepage type tail gas particle adsorption purification device and method

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002303438A (en) * 2002-04-01 2002-10-18 Takasago Thermal Eng Co Ltd Air conditioner
CN101571306A (en) * 2008-04-30 2009-11-04 海斯博特(北京)科技有限公司 Air purifier
CN102933910A (en) * 2010-05-24 2013-02-13 株式会社大气社 Air purifier and humidifier
CN104587777A (en) * 2013-11-01 2015-05-06 江苏海恒建材机械有限公司 Dust remover
CN105668760A (en) * 2016-04-06 2016-06-15 曹辉 Hollow ceramic plate and generation method of nano water film air bubbles as well as device and application thereof
CN109631208A (en) * 2019-01-15 2019-04-16 王宝全 A kind of modular air processing unit
CN210509334U (en) * 2019-05-22 2020-05-12 东莞理工学院城市学院 Tail gas purification device utilizing water film to adsorb particles

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002303438A (en) * 2002-04-01 2002-10-18 Takasago Thermal Eng Co Ltd Air conditioner
CN101571306A (en) * 2008-04-30 2009-11-04 海斯博特(北京)科技有限公司 Air purifier
CN102933910A (en) * 2010-05-24 2013-02-13 株式会社大气社 Air purifier and humidifier
CN104587777A (en) * 2013-11-01 2015-05-06 江苏海恒建材机械有限公司 Dust remover
CN105668760A (en) * 2016-04-06 2016-06-15 曹辉 Hollow ceramic plate and generation method of nano water film air bubbles as well as device and application thereof
CN109631208A (en) * 2019-01-15 2019-04-16 王宝全 A kind of modular air processing unit
CN210509334U (en) * 2019-05-22 2020-05-12 东莞理工学院城市学院 Tail gas purification device utilizing water film to adsorb particles

Also Published As

Publication number Publication date
CN110219719A (en) 2019-09-10

Similar Documents

Publication Publication Date Title
CN210509334U (en) Tail gas purification device utilizing water film to adsorb particles
CN110219719B (en) Constant pressure difference wetting surface tail gas particle adsorption and purification device
KR100500223B1 (en) Corrugated wall honeycomb structure and production method thereof
CN100422515C (en) Diesel particulate filter
EP3081777B1 (en) Exhaust gas purification material
KR101141875B1 (en) Improved diesel exhaust filter
EP3144048A1 (en) Exhaust gas purifying device
CN204627714U (en) A kind of automobile exhaust gas processing apparatus
KR20060054423A (en) Emission treatment system and method using a scr filter
BRPI0621825A2 (en) catalytic diesel converter system
AU4897299A (en) Diesel exhaust gas filter
CN204457948U (en) Exhaust aftertreatment assembly device
CN108625933A (en) A kind of diesel particulate trap based on DOC and DPF
US9587541B2 (en) Multifunctional exhaust gas purifying filter, and exhaust gas purifying apparatus using the same
WO2018086189A1 (en) Automobile exhaust gas emission system
CN101050717A (en) Exhaust gas purification apparatus
CN111102037B (en) Engine catalysis type particulate trap with amortization guiding device
CN110541743B (en) Spiral diesel engine tail gas purifying device and purifying method thereof
CN204961025U (en) Efficient automobile exhaust filter
CN102410066A (en) Multi-stage purifying and filtering device for motor vehicle tail gas
JP2004239197A (en) Engine exhaust fine particulate reduction device
KR101508731B1 (en) Injection system of sub-redcuing agent for Exhaust After-treatment System
KR100309839B1 (en) After-treatment apparauts of exhaust gas for automobile
KR101933917B1 (en) Method for coating catalyst on surface inside channels of diesel particulate filter
CN210509336U (en) Lifting type diesel engine tail gas particle separation device with wetting surface adsorption function

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant