CN110261125A - A kind of grain catcher simulation particulate matter negative pressure loading device - Google Patents
A kind of grain catcher simulation particulate matter negative pressure loading device Download PDFInfo
- Publication number
- CN110261125A CN110261125A CN201910665541.9A CN201910665541A CN110261125A CN 110261125 A CN110261125 A CN 110261125A CN 201910665541 A CN201910665541 A CN 201910665541A CN 110261125 A CN110261125 A CN 110261125A
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- particulate matter
- grain catcher
- negative pressure
- mixing chamber
- pipeline
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- 239000013618 particulate matter Substances 0.000 title claims abstract description 79
- 238000011068 loading method Methods 0.000 title claims abstract description 30
- 238000004088 simulation Methods 0.000 title description 13
- 238000002156 mixing Methods 0.000 claims abstract description 25
- 239000000428 dust Substances 0.000 claims abstract description 12
- 239000002245 particle Substances 0.000 claims abstract description 8
- 230000001502 supplementing effect Effects 0.000 claims description 14
- 230000001105 regulatory effect Effects 0.000 claims description 6
- 238000000605 extraction Methods 0.000 claims description 5
- 239000008187 granular material Substances 0.000 claims description 4
- 230000001276 controlling effect Effects 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims 1
- 238000002485 combustion reaction Methods 0.000 abstract description 9
- 238000000034 method Methods 0.000 abstract description 7
- 238000011161 development Methods 0.000 abstract description 5
- 239000000443 aerosol Substances 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 238000001914 filtration Methods 0.000 description 2
- 238000012356 Product development Methods 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M15/00—Testing of engines
- G01M15/04—Testing internal-combustion engines
- G01M15/10—Testing internal-combustion engines by monitoring exhaust gases or combustion flame
- G01M15/102—Testing internal-combustion engines by monitoring exhaust gases or combustion flame by monitoring exhaust gases
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention discloses a kind of grain catchers to simulate particulate matter negative pressure loading device, it includes air compressor machine, particulate matter mixing chamber, grain catcher and industrial dust collector can be dismantled, air compressor machine is connected by gas supply pipeline with particulate matter mixing chamber, intake valve is installed on gas supply pipeline, particulate matter adding mouth is provided on particulate matter mixing chamber, outlet in gas supply pipeline access particulate matter mixing chamber is connected with Inlet Swirl pipeline, particulate matter mixing chamber is connected by air delivering pipeline with that can dismantle grain catcher, grain catcher can be dismantled and be connected by gas exhaust piping with industrial dust collector.Above-mentioned negative pressure loading device provides negative pressure by industrial dust collector, realizes the load to particulate matter.It can not only load the after-treatment device of various specifications size, flow wide coverage, and also to let out risk small for particulate matter in loading procedure, the particle concentration of load is uniform, the load of internal combustion engine particulate matter can preferably be simulated, hence it is evident that shorten the development cycle, reduce product developing expense.
Description
Technical field
The invention belongs to motor-vehicle tail-gas processing techniques, more particularly, to a kind of various rule for internal combustion engine tail gas discharge
The particulate matter of lattice size after-treatment device loads, and simultaneously can be used for the filtering materials such as filter paper, filter cloth and imitates to the filtering of aerosol
The grain catcher of rate assessment simulates particulate matter negative pressure loading device.
Background technique
With the growth of GDP, domestic vehicle guaranteeding organic quantity is gradually increased.But with increasing for motor vehicle,
Tail gas pollution problem brought by motor vehicle also increasingly shows, and data show, motor vehicle is granular material discharged to have accounted for total release
30% or so." haze " phenomenon has seriously affected residents ' health and social stability, seeks efficient vehicular pollutant row
Discharge technique is also extremely urgent.
Grain catcher can effectively reduce that internal combustion engine is granular material discharged, according to the difference of adaptation type, can be divided into diesel oil
Machine grain catcher (DPF) and gasoline engine grain catcher (GPF).Two kinds of particles trap can effectively reduce internal combustion engine
Grain object discharge, in technological development, it is often necessary to make grain catcher full of particulate matter, i.e. progress particulate matter load.
Due to the progress of internal-combustion engine technology all the time, the particulate matter being discharged in the unit time is less, carries out particulate matter and adds
Need longer loading cycle when load, and need higher load expense, seriously affected the product development of grain catcher product into
Degree, and affect its mass production progress.Added using artificial grain's object (simulation soot, simulation ash content) simulation internal combustion engine particulate matter
It carries, can significantly shorten the development cycle, save development cost.
When carrying out simulation particulate matter load, because of increasing for the particle that traps in grain catcher, air inlet pressure will lead to
Power increases, and charge flow rate changes.And particulate matter also will affect grain catcher in the depositional configuration of grain catcher
Pressure drop performance, regenerability.
Currently, the existing particulate matter loading device price for grain catcher research is high, and loading velocity is lower,
Actual use needs the longer load time.Biggish air inflow, Duo Shuoqi are needed when simulating the positive pressure loading device operation of internal combustion engine
Source is difficult to meet, and device volume is larger, need it is biggish install and use space, when for large-sized grain catcher, just
Pressure loading device is difficult to effectively use.
Therefore, the particulate matter loading device of a set of simulation internal combustion engine is developed to grain catcher products application is accelerated, and is improved
Atmosphere pollution, protection national healthy have important meaning.
Summary of the invention
The purpose of the present invention is to provide a kind of grain catchers to simulate particulate matter negative pressure loading device, to solve existing skill
Particulate matter is simulated in art loads the existing above problem.
To achieve this purpose, the present invention adopts the following technical scheme:
A kind of grain catcher simulation particulate matter negative pressure loading device comprising air compressor machine, can be dismantled particulate matter mixing chamber
Grain catcher and industrial dust collector, wherein the air compressor machine is connected by gas supply pipeline with particulate matter mixing chamber, described to send
Intake valve is installed on air pipe, particulate matter adding mouth, the gas supply pipeline access are provided on the particulate matter mixing chamber
Outlet in grain object mixing chamber is connected with Inlet Swirl pipeline, and the particulate matter mixing chamber is by air delivering pipeline and can dismantle particle
Trap is connected, described to dismantle grain catcher and be connected by gas exhaust piping with the industrial dust collector.
Particularly, the air inlet pressure regulator valve for controlling pressure-air air inflow is installed on the gas supply pipeline.
Particularly, several gas supplementing openings are provided on the particulate matter mixing chamber, gas supplementing opening is installed on the gas supplementing opening
Filter device.
Particularly, the both ends that can dismantle grain catcher pass through the function connects for guaranteeing flow field uniformity respectively
Pipe is connected with air delivering pipeline and gas exhaust piping.
Particularly, the function connects pipe is using any of diffuser pipe or collapsible tube, and the function connects pipe passes through
Connecting flange with can dismantle grain catcher and corresponding pipeline is attached.
Particularly, the intake vacuum table for measuring vacuum degree at appendix is installed on the air delivering pipeline.
Particularly, the extraction flow regulating valve for adjusting capacity is installed on the gas exhaust piping.
Beneficial effects of the present invention are that the grain catcher simulates particulate matter negative pressure loading device compared with prior art
Negative pressure is provided by industrial dust collector, realizes the load to particulate matter.The after-treatment device of various specifications size can not only be loaded,
Flow wide coverage is particularly suitable for large-sized grain catcher；And particulate matter small, load of letting out risk in loading procedure
Particle concentration it is uniform, air flow rate stablize, can preferably simulate internal combustion engine particulate matter load, hence it is evident that shorten the development cycle,
Reduce product developing expense.
Detailed description of the invention
Fig. 1 is that the structure for the grain catcher simulation particulate matter negative pressure loading device that the specific embodiment of the invention provides is shown
It is intended to.
Specific embodiment
To further illustrate the technical scheme of the present invention below with reference to the accompanying drawings and specific embodiments.
Refering to Figure 1, Fig. 1 is that the grain catcher simulation particulate matter negative pressure that the specific embodiment of the invention provides adds
Carry the structural schematic diagram set.
In the present embodiment, a kind of grain catcher simulation particulate matter negative pressure loading device includes air compressor machine 1, air inlet pressure regulator valve
2, intake valve 3, gas supplementing opening filter device 4, gas supplementing opening 5, particulate matter adding mouth 6, particulate matter mixing chamber 7, Inlet Swirl pipeline 8,
Intake vacuum table 9, function connects pipe 10 can dismantle grain catcher 11, extraction flow regulating valve 12 and industrial dust collector
13, air compressor machine 1 is connected by gas supply pipeline with particulate matter mixing chamber 7, intake valve 3 is equipped on gas supply pipeline and for controlling
The air inlet pressure regulator valve 2 of pressure-air air inflow is provided with particulate matter adding mouth 6, particulate matter mixing chamber 7 on particulate matter mixing chamber 7
On be provided with several gas supplementing openings 5, be provided with gas supplementing opening filter device 4 on gas supplementing opening 5, gas supply pipeline accesses particulate matter mixing chamber
Outlet in 7 is connected with Inlet Swirl pipeline 8, and the exhaust end of particulate matter mixing chamber 7 is caught by air delivering pipeline with that can dismantle particle
Storage 11 is connected, and can dismantle grain catcher 11 and is connected by gas exhaust piping with industrial dust collector 13.
Can dismantle grain catcher 11 both ends pass through respectively for guarantee the function connects pipe 10 of flow field uniformity with it is defeated
Air pipe is connected with gas exhaust piping.Function connects pipe 10 is any using diffuser pipe or collapsible tube, and function connects pipe 10
By connecting flange with can dismantle grain catcher 11 and corresponding pipeline is attached, be equipped on air delivering pipeline for measuring
The intake vacuum table 9 of vacuum degree at appendix is equipped with the extraction flow regulating valve for adjusting capacity on gas exhaust piping
12。
Under the conditions of negative pressure gas flow may be implemented in above-mentioned grain catcher simulation particulate matter negative pressure loading device, to granule capturing
The uniform load of device, during load, control can be adjusted in loading speed, load traffic.Particulate matter air-flow is utilized when load
The good feature of trackability is raised particulate matter by pressure-air, then by providing air-intake negative-pressure, makes larger air-flow and particle
Object is mixed, and when mixed airflow flows through grain catcher, particulate matter is deposited in grain catcher, is realized to particulate matter
Load.
The specific loading procedure of above-mentioned grain catcher simulation particulate matter negative pressure loading device are as follows: pressure-air passes through pneumatics
Machine 1 provides, and pressure-air air inflow is adjusted by air inlet pressure regulator valve 2；Particulate matter is added to by particulate matter adding mouth 6
In grain object mixing chamber 7, when pressure-air passes through Inlet Swirl pipeline 8, so that the stronger particulate matter of air-flow trackability is raised.This
When partial particulate object can be flowed to air-flow at gas supplementing opening 5, at gas supplementing opening 5 install gas supplementing opening filter device 4 prevent particulate matter arrange
Into atmosphere, in order to avoid causing " secondary pollution ", the health of operator is influenced.Industrial dust collector 13 is opened at this time, has particulate matter
Aerosol stream can flow through the function connects pipe 10 for guaranteeing flow field uniformity, air-flow flows through can detachable grain catcher 11
When, particulate matter is filtered in grain catcher, so that the particulate matter load of grain catcher is realized, until being loaded into target
It is worth, is needed in loading procedure toward the supplement addition particulate matter of particulate matter mixing chamber 7.Before adding particulate matter, air inlet pressure regulator valve is first adjusted
2, it is ensured that without gas leakage, intake valve 3 is dish valve or ball valve for device junction, after good air inflow to be regulated, closes intake valve 3, keeps
Charge flow rate throttle position is constant.After particulate matter is added to adding mouth and seals up, open intake valve 3 make particulate matter with
High pressure draught raises, formed concentration close to consistent similar aerosol air-flow, then open again industrial dust collector 13 formation compared with
Big air-flow.When load, with building up for particulate matter, the vacuum degree that intake vacuum table 9 measures can be gradually become smaller, and need root
It is gradually increased the aperture of extraction flow regulating valve 12, according to intake vacuum value to ensure that load traffic is as consistent as possible.
The above embodiments only describe the basic principles and characteristics of the invention, and the invention is not restricted by the above cases,
Without departing from the spirit and scope, the invention also has various changes and changes, and these changes and changes are both fallen within
In scope of the claimed invention.The scope of the present invention is defined by the appended claims and its equivalents.
Claims (7)
1. a kind of grain catcher simulates particulate matter negative pressure loading device, which is characterized in that it includes air compressor machine, particulate matter mixing
Chamber can dismantle grain catcher and industrial dust collector, and the air compressor machine is connected by gas supply pipeline with particulate matter mixing chamber, institute
It states and intake valve is installed on gas supply pipeline, particulate matter adding mouth is provided on the particulate matter mixing chamber, the gas supply pipeline connects
Enter the outlet in particulate matter mixing chamber and be connected with Inlet Swirl pipeline, the particulate matter mixing chamber is by air delivering pipeline and can dismantle
Grain catcher is connected, described to dismantle grain catcher and be connected by gas exhaust piping with the industrial dust collector.
2. grain catcher according to claim 1 simulates particulate matter negative pressure loading device, which is characterized in that described to supply gas
Air inlet pressure regulator valve for controlling pressure-air air inflow is installed on pipeline.
3. grain catcher according to claim 1 simulates particulate matter negative pressure loading device, which is characterized in that the particle
It is provided with several gas supplementing openings on object mixing chamber, gas supplementing opening filter device is installed on the gas supplementing opening.
4. grain catcher according to claim 1 simulates particulate matter negative pressure loading device, which is characterized in that described to tear open
The both ends for unloading grain catcher pass through function connects pipe for guaranteeing flow field uniformity and air delivering pipeline and gas exhaust piping respectively
It is connected.
5. grain catcher according to claim 4 simulates particulate matter negative pressure loading device, which is characterized in that the function
Connecting tube is any using diffuser pipe or collapsible tube, and the function connects pipe by connecting flange and can dismantle granule capturing
Device and corresponding pipeline are attached.
6. grain catcher according to claim 1 simulates particulate matter negative pressure loading device, which is characterized in that the gas transmission
Intake vacuum table for measuring vacuum degree at appendix is installed on pipeline.
7. grain catcher according to claim 1 simulates particulate matter negative pressure loading device, which is characterized in that the exhaust
Extraction flow regulating valve for adjusting capacity is installed on pipeline.
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| CN201910665541.9A CN110261125A (en) | 2019-07-23 | 2019-07-23 | A kind of grain catcher simulation particulate matter negative pressure loading device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910665541.9A CN110261125A (en) | 2019-07-23 | 2019-07-23 | A kind of grain catcher simulation particulate matter negative pressure loading device |
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| CN110261125A true CN110261125A (en) | 2019-09-20 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110554288A (en) * | 2019-09-23 | 2019-12-10 | 华北电力大学 | Device for simulating metal particle adhesion behavior and discharge characteristic under GIL/GIS actual operation condition |
| CN110849605A (en) * | 2019-11-18 | 2020-02-28 | 中国重汽集团济南动力有限公司 | Particle catcher fault simulation device, method for judging blocking fault degree and method for removing fault degree |
| CN114414234A (en) * | 2022-01-27 | 2022-04-29 | 东风商用车有限公司 | Compressed air simulation device for truck height valve and control method |
| CN116990008A (en) * | 2023-09-28 | 2023-11-03 | 中汽研汽车检验中心(昆明)有限公司 | Particle catcher fault simulation device and fault simulation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110554288A (en) * | 2019-09-23 | 2019-12-10 | 华北电力大学 | Device for simulating metal particle adhesion behavior and discharge characteristic under GIL/GIS actual operation condition |
| CN110849605A (en) * | 2019-11-18 | 2020-02-28 | 中国重汽集团济南动力有限公司 | Particle catcher fault simulation device, method for judging blocking fault degree and method for removing fault degree |
| CN110849605B (en) * | 2019-11-18 | 2021-05-18 | 中国重汽集团济南动力有限公司 | Method for judging blocking fault degree and method for removing fault degree |
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| CN116990008A (en) * | 2023-09-28 | 2023-11-03 | 中汽研汽车检验中心(昆明)有限公司 | Particle catcher fault simulation device and fault simulation method thereof |
| CN116990008B (en) * | 2023-09-28 | 2024-01-02 | 中汽研汽车检验中心(昆明)有限公司 | Particle catcher fault simulation device and fault simulation method thereof |
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