CN208465554U - A kind of removal automobile tail gate processes the device of MDI in exhaust gas - Google Patents
A kind of removal automobile tail gate processes the device of MDI in exhaust gas Download PDFInfo
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- CN208465554U CN208465554U CN201820739670.9U CN201820739670U CN208465554U CN 208465554 U CN208465554 U CN 208465554U CN 201820739670 U CN201820739670 U CN 201820739670U CN 208465554 U CN208465554 U CN 208465554U
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- mdi
- exhaust gas
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- air inlet
- absorber
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Abstract
The utility model relates to the devices of MDI in removal automobile tail gate processing exhaust gas a kind of, including air inlet pipe, high pressure blower, absorber, escape pipe and controller, first high pressure blower is installed in air inlet pipe, for exhaust gas to be entered absorber by intake manifold injection, the absorber is built-in with the water for absorbing MDI in exhaust gas, exhaust gas is discharged after absorber is handled by the escape pipe, the escape pipe is equipped with the second air flow switch for detecting air-flow size, the air inlet pipe inlet is equipped with MDI sensor, the controller receives the MDI sensor, the signal of second air flow switch controls the high pressure blower switch.The device controls whether blower operates by MDI concentration in induction exhaust gas, judges whether pipeline blocks by induction air flow size.
Description
Technical field
The device of MDI in a kind of emission-control equipment of the present invention more particularly to a kind of removal automobile tail gate processing exhaust gas.
Background technique
MDI is a kind of industrial chemicals for being usually used in polyurethane material, is mainly used for synthetic resin and coating.It is generally divided into poly-
Close MDI (methyl diphenylene diisocyanate), pure MDI and modified MDI.It is toxic, but toxicity is little, is not belonging to hypertoxic chemicals.
But it must be noted that when temperature of charge is heated to 40 DEG C or more or working environment improper ventilation (when as melted), it will
It will increase its steam toxic, in addition use the place of spraying process construction operation, will lead to the increasing of airblrne particulates concentration
Add and generates murder by poisoning.Automobile tail gate technique has met this condition just, and by actual measurement, in the regional air, MDI concentration is often
It is exceeded, if the steam that the area people sucks exceeded concentration repeatedly can cause respiratory tract anaphylaxis, to eye without processing
Eyeball and skin have adverse effect, or even will affect lung functions, and asthma can be even caused when serious.Meeting after MDI is reacted with water
Solid is generated, it can be by reacting the MDI in removing exhaust gas with water, but MDI reacts the solid generated with water and easily accumulates formation pipe
Road blocking, influences treatment effect.
Summary of the invention
Automatic open close and the removal automobile of line clogging can be effectively prevent the purpose of this utility model is to provide a kind of
Tail-gate processes the device of MDI in exhaust gas, which controls whether blower operates by MDI concentration in induction exhaust gas, pass through induction
Air-flow size judges whether pipeline blocks.
Technical solution adopted in the utility model are as follows: a kind of removal automobile tail gate processes the device of MDI in exhaust gas, including
Air inlet pipe, high pressure blower, absorber, escape pipe and controller, first high pressure blower is installed in air inlet pipe, for that will give up
Gas enters absorber by intake manifold injection, and the absorber is built-in with the water for absorbing MDI in exhaust gas, and exhaust gas is handled through absorber
Be discharged afterwards by the escape pipe, the escape pipe is equipped with for detecting whether smooth second air flow switch of air-flow, it is described into
MDI sensor is equipped at air pipe inlet, the controller receives the signal control institute of the MDI sensor, the second air flow switch
State high pressure blower switch.
Further, the air inlet pipe and an air outlet pipe is the polytetrafluoroethylene (PTFE) pipeline for being not easy to bond with reactant.
Further, the air inlet pipe is equipped with the first air flow switch for detecting air-flow size, first air-flow
Output switching terminal is connect with the control device.
Further, the absorber water surface is goed deep into hereinafter, air inlet pipe outlet is equipped with gas in the air inlet pipe outlet
Body injector.
Further, the escape pipe is equipped with for by the secondary air fan of treated exhaust gas discharge, the controller
Control the secondary air fan switch.
Further, the air inlet pipe inlet is equipped with local exhaust hood, and the MDI sensor is placed in local exhaust hood
Place.
Further, the escape pipe exit is equipped with the 2nd MDI sensor for detecting MDI concentration, and the 2nd MDI is passed
Sensor output end connects the controller.
Further, the first regulating valve and second for adjusting air-flow size is equipped in the air inlet pipe and an air outlet pipe
Regulating valve.
Beneficial effect caused by the present invention includes: that one of present invention removes MDI in automobile tail gate processing exhaust gas
Device, the MDI for generating to automobile tail gate technique are handled, and can be removed overwhelming majority MDI in air and be controlled with reaching
Automobile tail gate process area labour protection requirement and emission compliance.It is stifled that MDI reactant solid occurs for absorber operation a period of time
After plug, replaced with can be convenient.Structure is simple, easy for installation.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of embodiment of the utility model；
Wherein: 1, local exhaust hood, the 2, first regulating valve, 3, high pressure blower, the 4, first air flow switch, 5, air inlet pipe, 6,
Gas ejector, 7, absorber, 8, escape pipe, the 9, second air flow switch, 10, secondary air fan, 11, air outlet, the 12, the first MDI
Concentration sensing, the 13, the 2nd MDI concentration sensing, 14, controller.
Specific embodiment
Further details of explanation is done to the present invention with reference to the accompanying drawings and detailed description, it should be appreciated that
The protection scope of the present invention is not limited by the specific implementation manner.
The device of MDI in a kind of removal automobile tail gate processing exhaust gas as shown in Figure 1, comprising: the air inlet pipe being sequentially communicated
5, absorber 7, escape pipe 8, absorber 7 are built-in with water, exhaust gas after air inlet pipe 5 enters absorber 7, MDI in exhaust gas with
The solid retention that water reaction generates is in absorber 7, and treated, and gas is discharged through escape pipe 8, and the present apparatus further includes controller
14, the first MDI concentration inductor 12, the first regulating valve 2, high pressure blower 3, the first air flow switch 4, the second air flow switch 9, secondary
Blower 10, the 2nd MDI concentration inductor, the first regulating valve 2 and the first air flow switch 4 are placed in air inlet pipe 5, and the first MDI is dense
Degree inductor 12 is placed in 5 inlet of air inlet pipe, and high pressure blower 3 connects air inlet pipe 5, and exhaust gas is made to pass through high pressure spray by air inlet pipe 5
Absorber 7 is injected, local exhaust hood 1 is installed in 5 inlet of air inlet pipe, the effect of local exhaust hood 1 is by working region MDI
The higher air of concentration is collected；The output end connection controller 14 of first air flow switch 4, the first MDI concentration inductor 12,
The input terminal of high pressure blower 3 connects controller 14.In order to spray into gas high pressure in water, gas is equipped in 5 exit of air inlet pipe
Injector 6, gas enter absorber 7 by gas ejector 6, and 7 water surface of absorber or less is goed deep into the outlet of air inlet pipe 5.First adjusts
Save valve 2 adjust 5 interior air-flow size of air inlet pipe, when in absorber 7 or pipeline because reaction solid presence, make absorber 7 or pipe
The first regulating valve 2 is adjusted in road narrow space, increases air inflow at regulating valve, certainly, at the beginning of device use, pipeline is smooth
Lead to without hindrance, adjustable first regulating valve 2 makes air inflow control in a certain range, prevents air inlet excessive, reacts insufficient.
Second regulating valve and the second air flow switch 9 are arranged on escape pipe 8, and second adjusts valve action and the first regulating valve 2
Effect quite, in order to control in a certain range throughput, reduces absorber 7 or line clogging situation to the shadow of air-flow size
It rings.Second air flow switch, 9 output end connects 14 input terminal of controller, and escape pipe 8 is connected with secondary air fan 10, and secondary air fan 10 is used
It is discharged in by treated gas through escape pipe 8, when at least one detection is not in the first air flow switch 4 or the second air flow switch 9
When to air-flow, controller 14 controls high pressure blower 3 and secondary air fan 10 shuts down, and replaces absorber 7.2nd MDI concentration sense
It answers device 13 to be placed at 8 air outlet 11 of escape pipe, is connect with controller 14.
The maintenance of pipeline is critically important, and the replacement and maintenance of relative absorbance device 7, air inlet pipe 5 and escape pipe 8 are more difficult to more
It changes, thus the blocking of air inlet pipe 5 and escape pipe 8 can cause many inconvenience, due to there are vapor, air inlet pipe 5 or going out in air
The react solid of generation of exhaust gas in tracheae 8 and vapor is easily bonded in inner wall of the pipe, over time, air inlet pipe 5
It is easy to happen blocking with escape pipe 8, a possibility that in order to reduce this blocking, air inlet pipe 5 and escape pipe 8 are all made of polytetrafluoroethyl-ne
A possibility that alkene pipeline, this pipeline can reduce the adhesiveness for generating product, reduce blocking.
The effect of regulating valve is to adjust air flow rate in the present invention, because resistance can be got over device with the increase of use time
Come bigger, therefore Fan Selection can be bigger than normal, opened in initial operation stage regulating valve it is small, behind gradually open greatly to keep injector institute
Need the steady of pressure；
The effect of air flow switch is whether detection air communication channel is unimpeded, if pipeline is blocked, control cabinet is received
Blower is closed after to the signal of air flow switch and issues alarm signal to protect blower；
The effect of gas ejector 6 is that the air containing MDI for sending high pressure blower 3 is uniformly injected at a high speed in water with convenient
MDI is reacted with water, and most MDI can be made to react with water to form solid and stay in absorber 7；
Controller model JC-4803 in the present invention, the first air flow switch model PS-M15, the type of the second air flow switch
Number be AF/T12B, MDI sensor model number be PS-M15, high pressure blower be by equipment, can type selecting 9-19 4A.
When use:
The signal that controller acquires MDI sensor first judges whether to need starter, high pressure blower 3 and secondary air fan
If pipeline is blocked after 10 operations, air flow switch movement, controller disconnects the two typhoons electromechanical source；
After running a period of time, small part MDI particle is inevitably sticked to pipeline with after the reaction of moisture in air
Wall surface, and MDI reacts with water and generates that solid particle is more and more, therefore device resistance can become larger, and need phase at this time in absorber 7
Big regulating valve should be opened to keep the steady of pressure needed for injector；
After running a period of time, and when solids is more in absorber 7 on inspection, integral replacing is carried out to absorber 7.
The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above.Current row
The technical staff of industry is described in above embodiments and description it should be appreciated that the present utility model is not limited to the above embodiments
Only illustrate the principles of the present invention, on the premise of not departing from the spirit and scope of the utility model, the utility model is also
It will have various changes and improvements, these various changes and improvements fall within the scope of the claimed invention.The utility model
Claimed range is defined by the appending claims and its equivalent thereof.
Claims (8)
1. the device of MDI in a kind of removal automobile tail gate processing exhaust gas, it is characterised in that: including air inlet pipe, high pressure blower, absorption
Device, escape pipe and controller, the high pressure blower are installed in air inlet pipe, for exhaust gas to be entered absorber by intake manifold injection,
The absorber is built-in with the water for absorbing MDI in exhaust gas, and exhaust gas is discharged after absorber is handled by the escape pipe, described
Escape pipe is equipped with the second air flow switch for detecting air-flow size, and the air inlet pipe inlet is equipped with MDI sensor, described
Controller receives the MDI sensor, the signal of the second air flow switch controls the high pressure blower switch.
2. the device of MDI in removal automobile tail gate processing exhaust gas according to claim 1, it is characterised in that: the air inlet
Pipe and escape pipe are the polytetrafluoroethylene (PTFE) pipeline for being not easy to bond with reactant.
3. the device of MDI in removal automobile tail gate processing exhaust gas according to claim 1, it is characterised in that: the air inlet
Pipe is equipped with the first air flow switch for detecting air-flow size, and the first air flow switch output end and the controller connect
It connects.
4. the device of MDI in removal automobile tail gate processing exhaust gas according to claim 1, it is characterised in that: the air inlet
The absorber water surface is goed deep into pipe outlet hereinafter, air inlet pipe outlet is equipped with gas ejector.
5. the device of MDI in removal automobile tail gate processing exhaust gas according to claim 1, it is characterised in that: the outlet
Pipe is equipped with for by the secondary air fan of treated exhaust gas discharge, the controller to control the secondary air fan switch.
6. the device of MDI in removal automobile tail gate processing exhaust gas according to claim 1, it is characterised in that: the air inlet
Local exhaust hood is equipped at tube inlet, the MDI sensor is placed at local exhaust hood.
7. the device of MDI in removal automobile tail gate processing exhaust gas according to claim 1, it is characterised in that: the outlet
Pipe exit is equipped with the 2nd MDI sensor for detecting MDI concentration, and the 2nd MDI sensor output connects the controller.
8. it is according to claim 1 removal automobile tail gate processing exhaust gas in MDI device, it is characterised in that: it is described into
Tracheae and escape pipe are equipped with the first regulating valve and the second regulating valve for adjusting air-flow size.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820739670.9U CN208465554U (en) | 2018-05-18 | 2018-05-18 | A kind of removal automobile tail gate processes the device of MDI in exhaust gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820739670.9U CN208465554U (en) | 2018-05-18 | 2018-05-18 | A kind of removal automobile tail gate processes the device of MDI in exhaust gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208465554U true CN208465554U (en) | 2019-02-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820739670.9U Expired - Fee Related CN208465554U (en) | 2018-05-18 | 2018-05-18 | A kind of removal automobile tail gate processes the device of MDI in exhaust gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208465554U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110711755A (en) * | 2019-09-18 | 2020-01-21 | 南京林业大学 | Modularized industrial exhaust purification system and branch pipe number setting method |
-
2018
- 2018-05-18 CN CN201820739670.9U patent/CN208465554U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110711755A (en) * | 2019-09-18 | 2020-01-21 | 南京林业大学 | Modularized industrial exhaust purification system and branch pipe number setting method |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190205 Termination date: 20190518 |
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| CF01 | Termination of patent right due to non-payment of annual fee |