CN207229217U - Diesel motor exhaust processing equipment - Google Patents
Diesel motor exhaust processing equipment Download PDFInfo
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- CN207229217U CN207229217U CN201721266110.8U CN201721266110U CN207229217U CN 207229217 U CN207229217 U CN 207229217U CN 201721266110 U CN201721266110 U CN 201721266110U CN 207229217 U CN207229217 U CN 207229217U
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- Prior art keywords
- oxidation
- oil separator
- air inlet
- processing equipment
- motor exhaust
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- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
The utility model discloses a kind of diesel motor exhaust processing equipment, including air inlet pipe, gs-oil separator, oxidation catalytic device and selective catalytic reduction device, the bottom of air inlet pipe is air inlet, the top of air inlet pipe is connected with gs-oil separator, oxidation catalytic device is between selective catalytic reduction device and gs-oil separator, one end of oxidation catalytic device is connected with gs-oil separator, the other end of oxidation catalytic device is connected with selective catalytic reduction device, and the one end of selective catalytic reduction device away from oxidation catalytic device is internally provided with ammoxidation catalyst.Tail gas enters diesel motor exhaust processing equipment from the air inlet of air inlet bottom of the tube, gs-oil separator separates the fluid in tail gas, enter oxidation catalytic device by the tail gas of gs-oil separator, the internal coat of oxidation catalytic device has noble metal catalyst, oxidation catalytic device is aoxidized by the flammable particulate matter in part in tail gas, and by pernicious gases such as the HC in tail gas and CO.
Description
Technical field
It the utility model is related to field of environment protection equipment, more particularly to a kind of diesel motor exhaust processing equipment.
Background technology
Diesel engine exhaust emissions administration way is very chaotic, and current most common processing mode can not meet
The environmental protection standard of the requirement of National Environmental Protection Agency, increasingly specification also improves the national protective awareness to environment.On traditional market
Scheme in remove PM use honeycomb wall-flow type ceramics DPF, that is, the mode of physical filtering.Through prove repeatedly and with
User through using the technical solution exchanges, and for the program there are the carbon distribution time is short, the product Qing Dynasty manages laborious, time-consuming, energy consumption ask
Topic.Need to retain good environment for society while industrial development, this just meets the original intention of industry and economic development.
Utility model content
The purpose of this utility model is to provide a kind of diesel motor exhaust processing equipment, can effectively dispose in tail gas
The atmosphere pollution such as the particulate matter and CO, HC of discharge and nitrogen oxides.
For this purpose, the utility model uses following technical scheme：
A kind of diesel motor exhaust processing equipment, including air inlet pipe, gs-oil separator, oxidation catalytic device and selectivity
Reductor is catalyzed, the bottom of the air inlet pipe is air inlet, and the top of the air inlet pipe is connected with the gs-oil separator, institute
Oxidation catalytic device is stated between the selective catalytic reduction device and the gs-oil separator, the oxidation catalytic device
One end is connected with the gs-oil separator, and the other end of the oxidation catalytic device is connected with the selective catalytic reduction device
Logical, the described one end of selective catalytic reduction device away from the oxidation catalytic device is internally provided with ammoxidation catalyst.
Specifically, tail gas enters diesel motor exhaust processing equipment, gs-oil separator from the air inlet of air inlet bottom of the tube
Fluid in tail gas is separated, enters oxidation catalytic device by the tail gas of gs-oil separator, the inside of oxidation catalytic device applies
Be covered with noble metal catalyst, oxidation catalytic device by the flammable particulate matter in part in tail gas, and by the HC in tail gas and
The pernicious gases such as CO aoxidize.The reaction occurred in oxidation catalytic device be specially (delivery temperature more than 250 degrees Celsius after be catalyzed
Under the action of agent)：CO+O2→CO2；HC+O2→CO2+H2O；C+O→CO2.Oxidation catalytic device is installed close to booster.
Meanwhile in oxidation catalytic device, NO has part to be converted to NO2 so that subsequently in selective catalytic reduction device
In reduction reaction it is more rapid and completely.
Specifically, selective catalytic reduction device (Selective Catalytic Reduction, SCR) is used to handle tail
NOx in gas.The quantity of the NOx discharged by monitoring in real time in motor exhaust, and the urea pump in command system penetrates phase
The urea liquid (as reducing agent) matched somebody with somebody, by the NOx in the catalyst discharge gas of SCR be reduced into for human body without
Harmful nitrogen and water.
Chemical principle in selective catalytic reduction device：
1. urea liquid decomposes as follows：
CO (NH2) 2+H2O=2NH3+CO2
2. the reduction reaction of NOx is as follows：
Standard reaction：4NH3+4NO+O2→4N2+6H2O
Slow reaction：6NO2+8NH3→7N2+1 2H2O
Fast reaction：NO+NO2+2NH3→2N2+3H2O
The further leakage of ammonia in order to prevent, in the one end of selective catalytic reduction device away from oxidation catalytic device
Ammoxidation catalyst is internally provided with, the leakage of ammonia can be reduced, reduces secondary pollution and severe compromise caused by ammonia leakage.
Preferably, the selective catalytic reduction device includes external shell and some in the external shell urge
Agent carrier, the catalyst carrier and the inner wall of the external shell are detachably connected, and the external shell is equipped with sealing
Door, is equipped with seal between the hermatic door and the external shell.
Specifically, selective catalytic reduction catalysts are coated with catalyst carrier, situation selection can be gone to set according to tail gas
Put the quantity of the catalyst carrier in external shell.
Preferably, the catalyst carrier is ceramic material, the catalyst carrier is equipped with some through holes.
Preferably, some catalyst carriers are vertically layered setting, the catalyst carrier with it is described outer
It is to be bolted between portion's housing.Tail gas pass sequentially through from top to bottom each catalyst carrier and with the catalysis in catalyst carrier
Agent contact reacts.
Preferably, the gs-oil separator includes the separate housing being made of some folded plates, set in the separate housing
There are thermometer screen and pressure sensor.Fluid in tail gas is mainly separated in thermometer screen, and pressure sensor is used to detect oil gas
Pressure in separator, cleans inside when pressure is excessive or replacement is handled.
Preferably, the oxidation catalytic device includes particulate matter catalyst converter and diesel engine vent gas oxidation catalyzer,
The particulate matter catalyst converter is located at the one end of the oxidation catalytic device away from the gs-oil separator, the diesel oil tail
Gas oxidation catalyzer is located at the oxidation catalytic device close to one end of the gs-oil separator.
Specifically, oxidation catalytic device includes particulate matter catalyst converter (Particulate Oxident Catalyst
) and diesel engine vent gas oxidation catalyzer (Diesel Oxident Catalyst DOC) POC.Tail gas first passes through POC and removes degranulation
Thing removes the pollutants such as CO and HC by DOC again.
Preferably, the air inlet pipe is equipped with the first expansion joint, the gs-oil separator and the oxidation catalytic device
Between be equipped with the second expansion joint.
Preferably, between the oxidation catalytic device and the selective catalytic reduction device along the flow direction of tail gas according to
It is secondary to be equipped with connection long tube, the 3rd expansion joint and connecting bend.
Specifically, the first expansion joint, the second expansion joint and the 3rd expansion joint are used to that equipment occurs in temperature change
The fine setting of slight deformation.
Preferably, further including some supporting racks, support frame as described above is used to support the gs-oil separator, the oxidation is urged
Makeup is put, the selective catalytic reduction device and the connection long tube.
The beneficial effects of the utility model：Tail gas enters diesel motor exhaust processing from the air inlet of air inlet bottom of the tube and sets
Standby, gs-oil separator separates the fluid in tail gas, enters oxidation catalytic device, oxidation catalysis by the tail gas of gs-oil separator
The internal coat of device has noble metal catalyst, and oxidation catalytic device aoxidizes the pernicious gases such as the HC in tail gas and CO, and
By the flammable particulate matter in part in tail gas.
Brief description of the drawings
Fig. 1 is the front view of the diesel motor exhaust processing equipment of the utility model；
Fig. 2 is the top view of the diesel motor exhaust processing equipment of the utility model；
Fig. 3 is the side view of the diesel motor exhaust processing equipment of the utility model；
Fig. 4 is the structure diagram of the selective catalytic reduction device of the utility model；
Fig. 5 is along the sectional view of line A-A in Fig. 4；
Fig. 6 is along the sectional view of line B-B in Fig. 4；
Fig. 7 is the structure diagram of the gs-oil separator of the utility model；
Fig. 8 is along the sectional view of line C-C in Fig. 7；
In figure：
1st, air inlet pipe；101st, air inlet；102nd, the first expansion joint；
2nd, gs-oil separator；201st, separate housing；202nd, thermometer screen；203rd, pressure sensor；
3rd, oxidation catalytic device；
4th, selective catalytic reduction device；401st, external shell；402nd, catalyst carrier；4021st, through hole；403rd, hermatic door；
5th, the second expansion joint；
6th, long tube is connected；
7th, the 3rd expansion joint；
8th, connecting bend；
9th, supporting rack.
Embodiment
Further illustrate the technical solution of the utility model below with reference to the accompanying drawings and specific embodiments.
As shown in figures 1-8, a kind of diesel motor exhaust processing equipment, including air inlet pipe 1, gs-oil separator 2, oxidation urge
3 and selective catalytic reduction device 4 are put in makeup, and the bottom of the air inlet pipe 1 is air inlet 101, the top of the air inlet pipe 1 and institute
State gs-oil separator 2 to be connected, the oxidation catalytic device 3 is located at the selective catalytic reduction device 4 and the Oil-gas Separation
Between device 2, one end of the oxidation catalytic device 3 is connected with the gs-oil separator 2, the oxidation catalytic device 3 it is another
One end is connected with the selective catalytic reduction device 4, and the selective catalytic reduction device 4 is away from the oxidation catalytic device 3
One end be internally provided with ammoxidation catalyst.
Specifically, tail gas enters diesel motor exhaust processing equipment, oil gas point from the air inlet 101 of 1 bottom of air inlet pipe
The fluid in tail gas is separated from device 2, enters oxidation catalytic device 3, oxidation catalytic device 3 by the tail gas of gs-oil separator 2
Internal coat have a noble metal catalyst, oxidation catalytic device 3 is by the flammable particulate matter in part in tail gas, and by tail gas
In HC and the oxidation of the pernicious gas such as CO.The reaction occurred in oxidation catalytic device 3 is specially that (delivery temperature is Celsius more than 250
After degree under the action of catalyst)：CO+O2→CO2；HC+O2→CO2+H2O；C+O→CO2.Oxidation catalytic device 3 is close to increasing
Depressor is installed.
Meanwhile in oxidation catalytic device 3, NO has part to be converted to NO2 so that subsequently in selective catalytic reduction device
Reduction reaction in 4 is more rapid and complete.
Specifically, selective catalytic reduction device 4 (Selective Catalytic Reduction, SCR) is used to handle tail
NOx in gas.Quantity by the NOx for monitoring engine emission in real time, and the urea pump in command system penetrates the urine to match
Plain solution (as reducing agent), is reduced into for the harmless nitrogen of human body by the NOx in the catalyst discharge gas of SCR
Gas and water.
Chemical principle in selective catalytic reduction device 4：
1. urea liquid decomposes as follows：
CO (NH2) 2+H2O=2NH3+CO2
2. the reduction reaction of NOx is as follows：
Standard reaction：4NH3+4NO+O2→4N2+6H2O
Slow reaction：6NO2+8NH3→7N2+1 2H2O
Fast reaction：NO+NO2+2NH3→2N2+3H2O
The further leakage of ammonia in order to prevent, in the one end of selective catalytic reduction device 4 away from oxidation catalytic device 3
The leakage for being internally provided with ammoxidation catalyst, ammonia being reduced, reduce ammonia leakage caused by secondary pollution and severe safety it is hidden
Suffer from.
In this present embodiment, the selective catalytic reduction device 4 includes external shell 401 and arranged on the external shell
Some catalyst carriers 402 in 401, the catalyst carrier 402 and the inner wall of the external shell 401 are detachably connected,
The external shell 401 is equipped with hermatic door 403, and seal is equipped between the hermatic door 403 and the external shell 401.
Specifically, selective catalytic reduction catalysts are coated with catalyst carrier 402, according to tail gas situation can be gone to select
The quantity for the catalyst carrier 402 being arranged in external shell 401.
In this present embodiment, the catalyst carrier 402 is ceramic material, and the catalyst carrier 402 is equipped with some
Through hole 4021.
In this present embodiment, some catalyst carriers 402 are vertically layered setting, the catalyst carrier
It is to be bolted between 402 and the external shell 401.Tail gas pass sequentially through from top to bottom each catalyst carrier 402 and with
Catalyst contact in catalyst carrier 402 reacts.
In this present embodiment, the gs-oil separator 2 includes the separate housing 201 being made of some folded plates, the separation
Thermometer screen 202 and pressure sensor 203 are equipped with housing 201.Fluid in tail gas is mainly separated in thermometer screen 202, is pressed
Force snesor 203 is used to detect pressure in gs-oil separator 2, inside is cleaned when pressure is excessive or replacement at
Reason.
In this present embodiment, the oxidation catalytic device 3 includes particulate matter catalyst converter and diesel engine vent gas oxidation is urged
Change device, the particulate matter catalyst converter is located at the one end of the oxidation catalytic device 3 away from the gs-oil separator 2, described
Diesel engine vent gas oxidation catalyzer is located at the oxidation catalytic device 3 close to one end of the gs-oil separator 2.
Specifically, oxidation catalytic device 3 includes particulate matter catalyst converter (Particulate Oxident Catalyst
) and diesel engine vent gas oxidation catalyzer (Diesel Oxident Catalyst DOC) POC.Tail gas first passes through POC and removes degranulation
Thing removes the pollutants such as CO and HC by DOC again.
In this present embodiment, the air inlet pipe 1 is equipped with the first expansion joint 102, the gs-oil separator 2 and the oxidation
The second expansion joint 5 is equipped between catalytic unit 3.
In this present embodiment, along the flowing of tail gas between the oxidation catalytic device 3 and the selective catalytic reduction device 4
Direction is equipped with connection long tube 6, the 3rd expansion joint 7 and connecting bend 8 successively.
Specifically, the first expansion joint 102, the second expansion joint 5 and the 3rd expansion joint 7 are used in temperature change to equipment
The fine setting of slight deformation occurs.
In this present embodiment, some supporting racks 9 are further included, support frame as described above 9 is used to support the gs-oil separator 2, institute
State oxidation catalytic device 3, the selective catalytic reduction device 4 and the connection long tube 6.
Obviously, above-described embodiment of the utility model is used for the purpose of clearly illustrating the utility model example, and
It is not the restriction to the embodiment of the utility model.For those of ordinary skill in the field, in described above
On the basis of can also make other variations or changes in different ways.There is no need and unable to give all embodiments
It is exhaustive.All any modification, equivalent and improvement made where within the spirit and principles of the present invention etc., should be included in
Within the protection domain of the utility model claims.
Claims (9)
1. a kind of diesel motor exhaust processing equipment, it is characterised in that including air inlet pipe, gs-oil separator, oxidation catalysis dress
It is air inlet, the top of the air inlet pipe and the Oil-gas Separation to put with selective catalytic reduction device, the bottom of the air inlet pipe
Device is connected, and the oxidation catalytic device is between the selective catalytic reduction device and the gs-oil separator, the oxygen
The one end for changing catalytic unit is connected with the gs-oil separator, and the other end of the oxidation catalytic device is urged with the selectivity
Change reductor to be connected, the described one end of selective catalytic reduction device away from the oxidation catalytic device is internally provided with ammoxidation
Catalyst.
2. diesel motor exhaust processing equipment according to claim 1, it is characterised in that the selective catalytic reduction
Device includes external shell and some catalyst carriers in the external shell, the catalyst carrier and the external shell
The inner wall of body is detachably connected, and the external shell is equipped with hermatic door, is equipped between the hermatic door and the external shell
Seal.
3. diesel motor exhaust processing equipment according to claim 2, it is characterised in that the catalyst carrier is pottery
Porcelain material, the catalyst carrier are equipped with some through holes.
4. diesel motor exhaust processing equipment according to claim 3, it is characterised in that some catalyst carriers
Vertically layering is set, and is to be bolted between the catalyst carrier and the external shell.
5. diesel motor exhaust processing equipment according to claim 1, it is characterised in that the gs-oil separator includes
The separate housing being made of some folded plates, the separate housing is interior to be equipped with thermometer screen and pressure sensor.
6. diesel motor exhaust processing equipment according to claim 1, it is characterised in that the oxidation catalytic device bag
Particulate matter catalyst converter and diesel engine vent gas oxidation catalyzer are included, the particulate matter catalyst converter is located at the oxidation catalysis
The one end of device away from the gs-oil separator, it is close that the diesel engine vent gas oxidation catalyzer is located at the oxidation catalytic device
One end of the gs-oil separator.
7. diesel motor exhaust processing equipment according to claim 1, it is characterised in that the air inlet pipe is equipped with the
One expansion joint, is equipped with the second expansion joint between the gs-oil separator and the oxidation catalytic device.
8. according to claim 1-7 any one of them diesel motor exhaust processing equipments, it is characterised in that the oxidation is urged
Makeup put between the selective catalytic reduction device along the flow direction of tail gas successively be equipped with connection long tube, the 3rd expansion joint and
Connecting bend.
9. diesel motor exhaust processing equipment according to claim 8, it is characterised in that some supporting racks are further included,
Support frame as described above is used to support the gs-oil separator, the oxidation catalytic device, the selective catalytic reduction device and described
Connect long tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721266110.8U CN207229217U (en) | 2017-09-28 | 2017-09-28 | Diesel motor exhaust processing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721266110.8U CN207229217U (en) | 2017-09-28 | 2017-09-28 | Diesel motor exhaust processing equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207229217U true CN207229217U (en) | 2018-04-13 |
Family
ID=61849926
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721266110.8U Active CN207229217U (en) | 2017-09-28 | 2017-09-28 | Diesel motor exhaust processing equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207229217U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107524506A (en) * | 2017-09-28 | 2017-12-29 | 广东绿谷净化设备有限公司 | Diesel motor exhaust processing equipment |
| CN111120047A (en) * | 2020-01-17 | 2020-05-08 | 绿联净化技术(东莞)有限公司 | Automatic back-blowing regeneration black smoke purification system |
| CN112627939A (en) * | 2020-12-31 | 2021-04-09 | 无锡世一电力环保有限公司 | Impedance composite silencing tower |
-
2017
- 2017-09-28 CN CN201721266110.8U patent/CN207229217U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107524506A (en) * | 2017-09-28 | 2017-12-29 | 广东绿谷净化设备有限公司 | Diesel motor exhaust processing equipment |
| CN111120047A (en) * | 2020-01-17 | 2020-05-08 | 绿联净化技术(东莞)有限公司 | Automatic back-blowing regeneration black smoke purification system |
| CN112627939A (en) * | 2020-12-31 | 2021-04-09 | 无锡世一电力环保有限公司 | Impedance composite silencing tower |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200417 Address after: 523808 room 206, unit 1, building 1, No.1, Nanshan Road, Songshanhu Park, Dongguan City, Guangdong Province Patentee after: Lvlian purification technology (Dongguan) Co.,Ltd. Address before: 523000 Guangdong, Dongguan Songshan Lake high tech Industrial Development Zone, Nanshan Road, No. 1 chi chi Valley, building A205, No. 1 Patentee before: GUANGDONG LEEGOOL PURIFIER EQUIPMENT Co.,Ltd. |
|
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 523000 Room 102, building 1, No. 7, Xinzhu Road, Songshanhu Park, Dongguan City, Guangdong Province Patentee after: Lvlian purification technology (Dongguan) Co.,Ltd. Address before: 523808 room 206, unit 1, building 1, No.1, Nanshan Road, Songshanhu Park, Dongguan City, Guangdong Province Patentee before: Lvlian purification technology (Dongguan) Co.,Ltd. |