CN219993777U - Diesel vehicle tail gas denitrification device - Google Patents
Diesel vehicle tail gas denitrification device Download PDFInfo
- Publication number
- CN219993777U CN219993777U CN202321617268.0U CN202321617268U CN219993777U CN 219993777 U CN219993777 U CN 219993777U CN 202321617268 U CN202321617268 U CN 202321617268U CN 219993777 U CN219993777 U CN 219993777U
- Authority
- CN
- China
- Prior art keywords
- tail gas
- filter
- diesel vehicle
- vehicle tail
- device main
- 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
Links
- 238000010438 heat treatment Methods 0.000 claims abstract description 28
- 239000007789 gas Substances 0.000 claims abstract description 26
- 238000002347 injection Methods 0.000 claims abstract description 22
- 239000007924 injection Substances 0.000 claims abstract description 22
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 18
- 239000001301 oxygen Substances 0.000 claims abstract description 18
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 18
- 238000003466 welding Methods 0.000 claims description 5
- 239000003054 catalyst Substances 0.000 abstract description 22
- 230000000694 effects Effects 0.000 abstract description 15
- 238000006243 chemical reaction Methods 0.000 abstract description 4
- 238000012544 monitoring process Methods 0.000 abstract description 4
- 238000005485 electric heating Methods 0.000 abstract description 2
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 238000000746 purification Methods 0.000 description 4
- 238000001914 filtration Methods 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 238000013021 overheating Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000000748 cardiovascular system Anatomy 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000011982 device technology Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002808 molecular sieve Substances 0.000 description 1
- 210000000653 nervous system Anatomy 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 210000002345 respiratory system Anatomy 0.000 description 1
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Landscapes
- Exhaust Gas After Treatment (AREA)
Abstract
The utility model relates to the technical field of tail gas treatment, and provides a diesel vehicle tail gas denitration device which comprises a device main body and a heating device. The utility model can improve the temperature of the SCR catalyst through the heating device so as to promote the occurrence of chemical reaction and ensure the stability of the denitration effect, the heating chip is an electric heating device which can convert electric energy into heat energy to generate heat to improve the temperature of the catalyst, the cylinder body is a supporting and fixing part of the heater, the electric heater seat is provided with and fixes a part for heating the chip, the temperature sensor is a part for detecting the temperature of the catalyst, the heater is automatically closed when the catalyst reaches the set temperature, the oxygen sensor is used for measuring the oxygen content in exhaust gas so as to adjust the injection quantity of the reducing agent of the injection system to achieve the optimal denitration effect, and the control unit is used for monitoring the reading of the temperature sensor.
Description
Technical Field
The utility model relates to the technical field of tail gas treatment, in particular to a diesel vehicle tail gas denitration device.
Background
Along with the increase of the number of diesel vehicles, the exhaust emission of the diesel vehicles has an increasing influence on the air quality and the human health, NOx is one of the most main pollutants in the exhaust of the diesel vehicles, and the NOx not only pollutes the atmospheric environment, but also threatens the human health, such as diseases of respiratory systems, cardiovascular systems, nervous systems and the like, so that the development and application of the diesel vehicle exhaust denitration device technology has important significance for improving the air quality and maintaining the human health.
According to the search of Chinese utility model publication number: CN212774467U discloses a diesel vehicle tail gas denitrification facility based on molecular sieve, including the outer installation pipe with diesel vehicle blast pipe fixed mounting, the outer installation pipe is close to diesel vehicle blast pipe's one end inner wall fixed mounting has the spacing ring, the spacing ring is kept away from diesel vehicle blast pipe's one end surface conflict and is provided with filtration purification subassembly, filtration purification subassembly is kept away from spacing ring's one end demountable installation has the adapter sleeve, adapter sleeve outer wall and installation pipe inner wall sliding contact, the adapter sleeve is kept away from filtration purification subassembly's one end and is provided with the solid fixed ring, gu fixed ring terminal surface periphery is circumference even interval screw thread and installs a plurality of lock nuts, outer installation pipe is close to gu fixed ring's one end surface offered with lock nut assorted thread groove, the utility model structural design is reasonable, has realized carrying out effectual purification treatment to diesel vehicle tail gas.
However, when implementing the above technical solution, the following problems exist: the SCR technology needs a certain temperature to exert an optimal effect, under the condition of extremely high temperature, the reaction efficiency of the catalyst can be reduced, the denitration effect is affected, and under low temperature, the performance of the SCR technology can be affected, because the activity of the catalyst is reduced, the nitrogen oxides can not be completely converted into nitrogen and water, and the denitration effect is affected to a certain extent.
Disclosure of Invention
The utility model provides a diesel vehicle tail gas denitration device, which solves the problems that in the related technology, in the processing process, the SCR technology needs a certain temperature to exert the optimal effect, the reaction efficiency of a catalyst can be reduced under the condition of extremely high temperature, the denitration effect is influenced, the performance of the SCR technology can be influenced under the condition of low temperature, and the activity of the catalyst is reduced, so that nitrogen oxides can not be completely converted into nitrogen and water, and the denitration effect is influenced to a certain extent.
The technical scheme of the utility model is as follows: the utility model provides a diesel vehicle tail gas denitrification facility, includes device main part and heating device, device main part right side is provided with the cylinder body, be provided with the heating chip behind the cylinder body, the heating chip right side is provided with temperature sensor, temperature sensor right side is provided with the fuse, the cylinder body right side is provided with the electric heater seat, electric heater seat right side is provided with the screen pipe, the screen pipe upper end is provided with oxygen sensor, be provided with the control unit behind the screen pipe, the screen pipe right side is provided with the filter, the filter upper end is provided with the valve, the filter right side is provided with reductant injection system.
Preferably, the heating chip and the cylinder body are welded, and the heating chip and the cylinder body form a fixed structure.
Preferably, the temperature sensor is connected with the cylinder body through a pin header, the fuse is welded with the cylinder body, the electric heater seat is connected with the cylinder body through a clamping groove, and nine groups of electric heater seats are arranged.
Preferably, the oxygen sensor is connected with the device main body in a pin arrangement mode, and the oxygen sensor corresponds to the device main body one by one.
Preferably, the welding is adopted between the control unit and the device main body, the control unit is tightly attached to the device main body, and a button is arranged on one side of the control unit.
Preferably, the filter is connected with the sieve tube through a clamping groove, and the inner diameter of the filter is matched with the outer diameter of the sieve tube.
Preferably, the valve and the filter are in threaded connection, and the valve and the filter form an adjustable structure.
Preferably, the reducing agent injection system is in flange connection with the filter, and the reducing agent injection system and the filter form a fixed structure.
The working principle and the beneficial effects of the utility model are as follows:
the utility model can improve the temperature of the SCR catalyst through the heating device so as to promote the occurrence of chemical reaction and ensure the stability of denitration effect, the heating chip is an electric heating device, can convert electric energy into heat energy to generate heat so as to improve the temperature of the catalyst, the cylinder body is a supporting and fixing part of the heater, has excellent corrosion resistance and mechanical strength, the electric heater seat is provided with and fixes a part of the heating chip, the temperature sensor is a part for detecting the temperature of the catalyst, the heater is automatically turned off when the catalyst reaches the set temperature, the oxygen sensor is used for measuring the oxygen content in exhaust gas so as to adjust the injection amount of the reducing agent of the injection system to achieve the optimal denitration effect, and the control unit is used for monitoring the reading of the temperature sensor.
Drawings
The utility model will be described in further detail with reference to the drawings and the detailed description.
FIG. 1 is a schematic view of the main structure of the device of the present utility model;
FIG. 2 is a left side schematic view of the present utility model;
FIG. 3 is a right side schematic view of the present utility model;
FIG. 4 is a schematic illustration of the construction of the parts of the present utility model;
reference numerals in the drawings: 1. a device body; 2. a heating device; 201. a cylinder; 202. heating the chip; 203. a temperature sensor; 204. a fuse; 205. an electric heater base; 3. a screen pipe; 4. an oxygen sensor; 5. a control unit; 6. a filter; 7. a valve; 8. a reductant injection system.
Detailed Description
The technical solutions of the embodiments of the present utility model will be clearly and completely described below in conjunction with the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-4, the utility model provides a diesel vehicle tail gas denitration device, which comprises a device main body 1 and a heating device 2, wherein the heating device 2 is arranged on the right side of the device main body 1, a cylinder 201 is arranged on the right side of the device main body 1, a heating chip 202 is arranged behind the cylinder 201, a temperature sensor 203 is arranged on the right side of the heating chip 202, a fuse 204 is arranged on the right side of the temperature sensor 203, an electric heater seat 205 is arranged on the right side of the cylinder 201, a screen pipe 3 is arranged on the right side of the electric heater seat 205, an oxygen sensor 4 is arranged at the upper end of the screen pipe 3, a control unit 5 is arranged behind the screen pipe 3, a filter 6 is arranged on the right side of the screen pipe 3, a valve 7 is arranged at the upper end of the filter 6, and a reducing agent injection system 8 is arranged on the right side of the filter 6.
In use, the heating chip 202 converts electrical energy into heat energy through the supporting and fixing parts of the heater of the cylinder 201, the heat is generated to increase the temperature of the catalyst, the heater is automatically turned off when the catalyst reaches the set temperature through the temperature sensor 203, the fuse 204 can automatically cut off the power supply when the circuit is short-circuited or overloaded, the heater is prevented from overheating and damaging, the electric heater seat 205 receives power supply, then the electric sensor is used for capturing particulate matters through the screen 3 to reduce the emission amount thereof, including the leakage current and other statistical data, the oxygen sensor 4 is used for measuring the oxygen content in the exhaust gas to adjust the injection amount of the reducing agent of the injection system to achieve the optimal denitration effect, the control unit 5 is used for monitoring the reading of the sensor and adjusting the operation mode of the injection system according to the reading, the filter 6 is used for maintaining and cleaning the catalyst to ensure long-term and stable operation, the valve 7 can adjust the gas flow to ensure that the tail gas reaches the optimal state before passing through the catalyst or the screen 3 and the like, the reducing agent injection system 8 is used for injecting the reducing agent into the catalyst to help reduce the emission of NOx.
Specifically, the cylinder 201 and the heating chip 202 are welded, the cylinder 201 and the heating chip 202 form a fixed structure, and the heating chip 202 can convert electric energy into heat energy through the supporting and fixing parts of the heater of the cylinder 201, so that heat is generated to raise the temperature of the catalyst.
Specifically, the temperature sensor 203 is connected with the cylinder 201 by a pin header, the fuse 204 is welded with the cylinder 201, the electric heater seat 205 is connected with the cylinder 201 by a clamping groove, the electric heater seat 205 is provided with nine groups, the electric heater is automatically turned off when the catalyst reaches the set temperature through the temperature sensor 203, the fuse 204 can automatically cut off the power supply when the circuit is short-circuited or overloaded, the electric heater is prevented from overheating and damaging, and the electric heater seat 205 receives power supply.
Specifically, the oxygen sensor 4 is connected with the device main body 1 by a pin header, the oxygen sensor 4 is in one-to-one correspondence with the device main body 1, and the oxygen sensor 4 is used for measuring the oxygen content in the exhaust gas so as to adjust the injection quantity of the reducing agent of the injection system, so as to achieve the optimal denitration effect.
Specifically, welding is adopted between the control unit 5 and the device main body 1, the control unit 5 is tightly attached to the device main body 1, a button is arranged on one side of the control unit 5, and the control unit 5 is used for monitoring the reading of the sensor and adjusting the working mode of the injection system according to the reading.
Specifically, the filter 6 is connected with the sieve tube 3 through a clamping groove, the inner diameter of the filter 6 is matched with the outer diameter of the sieve tube 3, and the filter 6 is used for maintaining and cleaning the catalyst so as to ensure long-term and stable operation.
Specifically, the valve 7 is in threaded connection with the filter 6, the valve 7 and the filter 6 form an adjustable structure, the gas flow can be adjusted through the valve 7, and the tail gas is ensured to reach the optimal state before passing through the catalyst or the screen pipe 3 and other devices, so that a proper treatment effect is achieved.
Specifically, the reducing agent injection system 8 and the filter 6 are in flange connection, the reducing agent injection system 8 and the filter 6 form a fixed structure, and the reducing agent injection system 8 is used for injecting the reducing agent into the catalyst so as to help reduce the emission of NOx.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.
Claims (8)
1. The utility model provides a diesel vehicle tail gas denitrification facility, includes device main part (1) and heating device (2), its characterized in that, device main part (1) right side is provided with heating device (2), device main part (1) right side is provided with cylinder body (201), be provided with heating chip (202) at the back of cylinder body (201), heating chip (202) right side is provided with temperature sensor (203), temperature sensor (203) right side is provided with fuse (204), cylinder body (201) right side is provided with electric heater seat (205), electric heater seat (205) right side is provided with screen pipe (3), screen pipe (3) upper end is provided with oxygen sensor (4), be provided with control unit (5) at the back of screen pipe (3), screen pipe (3) right side is provided with filter (6), filter (6) upper end is provided with valve (7), filter (6) right side is provided with reductant injection system (8).
2. The diesel vehicle tail gas denitration device according to claim 1, wherein welding is performed between the heating chip (202) and the cylinder body (201), and the heating chip (202) and the cylinder body (201) form a fixed structure.
3. The diesel vehicle tail gas denitration device according to claim 1, wherein a pin header is connected between the temperature sensor (203) and the cylinder (201), welding is performed between the fuse (204) and the cylinder (201), a clamping groove is connected between the electric heater seat (205) and the cylinder (201), and nine groups of electric heater seats (205) are arranged.
4. The diesel vehicle tail gas denitration device according to claim 1, wherein the oxygen sensor (4) is connected with the device main body (1) in a pin header manner, and the oxygen sensor (4) is in one-to-one correspondence with the device main body (1).
5. The diesel vehicle tail gas denitration device according to claim 1, wherein welding is adopted between the control unit (5) and the device main body (1), the control unit (5) is tightly attached to the device main body (1), and a button is arranged on one side of the control unit (5).
6. The diesel vehicle tail gas denitration device according to claim 1, wherein the filter (6) is connected with the sieve tube (3) through a clamping groove, and the inner diameter of the filter (6) is matched with the outer diameter of the sieve tube (3).
7. The diesel vehicle tail gas denitration device according to claim 1, wherein the valve (7) is in threaded connection with the filter (6), and the valve (7) and the filter (6) form an adjustable structure.
8. The diesel vehicle tail gas denitration device according to claim 1, wherein the reducing agent injection system (8) is in flange connection with the filter (6), and the reducing agent injection system (8) and the filter (6) form a fixed structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321617268.0U CN219993777U (en) | 2023-06-25 | 2023-06-25 | Diesel vehicle tail gas denitrification device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321617268.0U CN219993777U (en) | 2023-06-25 | 2023-06-25 | Diesel vehicle tail gas denitrification device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219993777U true CN219993777U (en) | 2023-11-10 |
Family
ID=88620056
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321617268.0U Active CN219993777U (en) | 2023-06-25 | 2023-06-25 | Diesel vehicle tail gas denitrification device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219993777U (en) |
-
2023
- 2023-06-25 CN CN202321617268.0U patent/CN219993777U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN219993777U (en) | Diesel vehicle tail gas denitrification device | |
| WO2021248407A1 (en) | Gpf oxygen pump auxiliary regeneration device and method for coupled bipolar charging and coagulation system | |
| CN216457994U (en) | Energy-saving efficient desulfurization dust collector utilizing waste heat | |
| CN211202089U (en) | New energy automobile exhaust circulation purification processing apparatus | |
| CN108506069B (en) | Automobile exhaust treatment device with temperature control system | |
| CN201368545Y (en) | Indoor air purification device | |
| CN208138024U (en) | A kind of exhaust purifier | |
| CN216047751U (en) | Smoke purifying equipment for moxibustion device | |
| CN212467677U (en) | Catalytic catalyst device of gas water heater and gas water heater | |
| CN214131077U (en) | Exhaust gas purification device for automobile exhaust | |
| CN108434983A (en) | A kind of spray column and photooxidation catalytic waste gas processing system | |
| CN114832623A (en) | Tail gas purification method and device for gasoline vehicle emission inspection mechanism | |
| CN212142127U (en) | Tail end ozone decomposer of waste gas treatment system | |
| CN210217874U (en) | Internal combustion engine hot tail gas treatment device | |
| CN209810426U (en) | Exhaust gas treatment device | |
| CN211314339U (en) | SCR tail gas aftertreatment device | |
| CN208347866U (en) | One kind being used for metal dpf regeneration electric heater | |
| US20220356830A1 (en) | Systems and methods for generating ammonia | |
| CN211474214U (en) | Environment-friendly automobile exhaust treater | |
| CN205895382U (en) | Adopt automotive exhaust purification device of catalysis ceramic pipe | |
| CN205840966U (en) | A kind of intelligent monitoring and controlling device of the blockage detecting DPF | |
| CN217380704U (en) | Exhaust pipe smoke exhaust cap for emergency power supply vehicle | |
| CN204921108U (en) | Automobile exhaust's catalytic conversion device | |
| CN210370862U (en) | Automobile exhaust purifier | |
| CN108506068B (en) | Automobile exhaust pipe with tail gas treatment function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |