CN201637584U - Auxiliary device for detection of automobile exhaust - Google Patents
Auxiliary device for detection of automobile exhaust Download PDFInfo
- Publication number
- CN201637584U CN201637584U CN2010201475857U CN201020147585U CN201637584U CN 201637584 U CN201637584 U CN 201637584U CN 2010201475857 U CN2010201475857 U CN 2010201475857U CN 201020147585 U CN201020147585 U CN 201020147585U CN 201637584 U CN201637584 U CN 201637584U
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- tracheae
- coarse filter
- water storage
- storage bottle
- adjustable coarse
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Abstract
The sample gas sucked from the automobile exhaust tube comprises a large number of condensate and granular impurities, thereby affecting the detection speed. The utility model discloses an auxiliary device for detection of an automobile exhaust, which is characterized in that a filter comprises an adjustable coarse filter and a fine filter. The adjustable coarse filter is connected with an automobile exhaust collector through a sampling gas tube and is also connected with the fine filter through a connecting gas tube. The fine filter is connected with an automobile exhaust detector through an instrument gas tube. The lower part of the adjustable coarse filter is provided with a water storage bottle, and the water storage bottle is connected with a valve. The utility model has the advantages that: due to the arrangement of the adjustable coarse filter and the fine filter, no detection interruption or filter replacement is needed for one-day detection, thereby effectively guaranteeing the continuous operation, increasing the detection speed, and reducing the detection cost. Therefore, the utility model is particularly suitable for detection of lines with continuous production.
Description
Technical field
The utility model relates to a kind of measurement checkout equipment, especially relates to a kind of motor vehicle emission and detects servicing unit.
Background technology
Along with China's economic development and living standard improve, people are to the also fast development of owning amount of automobile, and the motor vehicle emission environmental pollution that for this reason brings also is on the rise.For strict Control of Automobile discharging, country has formulated related specifications and standard, and motor vehicle emission detects also lists the mandatory test item of industry in.The motor vehicle emission detector is the professional instrument that motor vehicle emission detects, and its correct use directly has influence on testing result.
At present, being used for the instrument that motor vehicle emission detects mainly is non-decentralized infrared analyzer.This instrument mainly is made of sampler, analytical equipment, concentration indicating device and calibrating installation etc.Sampler is made up of discharging collector, tracheae, filtrator, and effect is to suck sample gas from the gas outlet of automobile, is sent to the detector test.
In the sample gas that from automobile exhaust pipe, sucks, comprise a large amount of condensate waters and granule foreign.Big multiple instruments user adopts in detector front end additional filter, the method for filtering condensate water and granule foreign.After this filtrator is used,, can only changes and scrap when not playing a role in filtering.Have a large amount of condensate waters and granule foreign owing to sample gas in actual detected, generalized case need be installed 3 even more a plurality of filtrator, and in test in a day, need repeatedly change filtrator, could satisfy the requirement of instrument to sample gas.This method owing to need very to change filtrator continually, not only influences detection speed, has also improved the detection cost.
Also some user takes backblowing, as publication number CN281680Y utility model patent disclosed a kind of " vehicle exhaust pick-up unit ", the blow-back pump is installed between filtrator and detector, before each car is detected, blowback pump is blown, and condensate water residual in the tracheae and granule foreign are discharged from the gas collecting device.This method, each car test is surveyed and has been added the blow-back action, has increased the detection utility appliance, has not only reduced detection speed, has also improved the detection cost.
Summary of the invention
In order to overcome the defective of prior art, the utility model aims to provide a kind of motor vehicle emission instrument detection servicing unit that improves the motor vehicle emission detection speed, reduces the detection cost.
The utility model is achieved through the following technical solutions: a kind of motor vehicle emission instrument detects servicing unit, comprise that the motor vehicle emission collector is connected with filtrator by the sampling tracheae, filtrator is connected with the motor vehicle emission detector by the instrument tracheae, it is characterized in that, described filtrator comprises an adjustable coarse filter and a fine filtrator, adjustable coarse filter is connected with the automobile emission gas collector by the sampling tracheae, adjustable coarse filter is connected with fine filtrator by connecting tracheae, fine filtrator is connected with the motor vehicle emission detector by the instrument tracheae, described adjustable coarse filter bottom is provided with the water storage bottle, and the water storage bottle is connected with valve.
The sample gas temperature of motor vehicle emission is up to good hundreds of degree centigrade, after sample gas enters into collector, sharply cooling forms condensate water, the sample gas of carrying condensate water and granule foreign by described adjustable coarse filter by filter element filtering after, condensate water and granule foreign are deposited to the water storage bottle, effectively filtering the sample gas condensate water and the granule foreign that carry.
Condensate water and the granule foreign collected enter adjustable coarse filter bottom water storage bottle, open with water storage bottle blind end to be connected Valved discharge condensate water and granule foreign, have not only made things convenient for but also do not need to change filtrator.
From the sample gas that adjustable coarse filter is discharged, the fine filtrator that is provided by a detector producer again or coincidence detection instrument producer requires filters, and reaches the requirement of motor vehicle emission detector to detected sample gas fully.
As preferably, described adjustable coarse filter top is provided with housing, inner walls is the cavity body structure that an end seals an end opening Rotary-table, filter core is set in the shell cavity, and the housing top is provided with knob, and described adjustable coarse filter bottom is provided with the water storage bottle, the water storage bottle is the cavity body structure of cone conical bottom end opening cone tip sealing, water storage bottle openend is connected with housing, and water storage bottle blind end is connected with valve, and the sidewall of water storage bottle is provided with scale label.
In detection, do not need to stop to detect,, regulate the sample gas amount to satisfy the requirement of motor vehicle emission detector as long as the adjustable coarse filter housing of rotation top is provided with knob.Easy to operate.
The water storage bottle can be dismantled from adjustable coarse filter easily, installs after cleaning filter core and the inner walls again and restores, and filtrator need not changed and can continue to use.
Collect condensate water and granule foreign and scale label contrast by the water storage bottle, operating personnel can be perfectly clear and detect collecting amount, can intuitively see emissions status again when discharging condensate water and granule foreign.
As preferably, the relative two sides of described adjustable coarse filter upper body outer wall are provided with air intake opening and gas outlet respectively, described adjustable coarse filter air intake opening is pegged graft with the sampling tracheae, pegs graft with being connected tracheae in described adjustable coarse filter gas outlet, and outside surface is provided with collar near the connection tracheae port.
It is for convenience of cleaning channels that tracheae is pegged graft.And with adjustable coarse filter gas outlet peg graft be connected the tracheae port near outside surface collar locking is set, do not need can effectively prevent from the position sample gas of often dismounting to leak.
As preferably, described fine filtrator air intake opening be connected that tracheae is pegged graft, described fine filtrator gas outlet and the grafting of instrument tracheae.
It is to change fine filtrator and cleaning channels for convenience that tracheae is pegged graft.
Compared with prior art, the utility model beneficial effect is: not needing increases and the increase filtrator because of condensate water in the sample gas and granule foreign content; In one day testing process, neither need to interrupt detecting and changing filtrator continually, do not need increase equipment yet, blow-back before each Automobile Detection is removed residual condensate water and granule foreign in the pipe; And described adjustable coarse filter only needs regularly to clean, and does not need to change, and guarantees effectively that motor vehicle emission detects can carry out continuously, improves detection speed, reduces and detects cost.
Description of drawings
Accompanying drawing is the structural representation that a kind of motor vehicle emission instrument of the utility model detects servicing unit.
Embodiment
Below by embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment 1:
As shown in the figure, a kind of motor vehicle emission instrument of the utility model detects servicing unit, comprises an adjustable coarse filter 2 and a fine filtrator 5.Adjustable coarse filter 2 air intake openings 21 are pegged graft by sampling tracheae 1 and automobile emission gas collector, adjustable coarse filter 2 gas outlets 24 be connected tracheae 4 and peg graft, outside surface is installed collar 3 near connecting tracheae 4 ports, and locking connection tracheae 4 is connected with gas outlet 24.Connecting tracheae 4 other ends and fine filtrator 5 air intake openings and peg graft, pegs graft by instrument tracheae 6 and motor vehicle emission detector in fine filtrator 5 gas outlets.
Adjustable coarse filter 2 tops are provided with housing 22, and shell material is advisable with metal or plastics.Housing 22 inwalls are the cavity body structure that an end seals an end opening Rotary-table, in housing 22 cavitys filter core 28 are set.The housing outer wall is advisable with square or circular configuration.
Adjustable coarse filter 2 housings 22 tops are provided with knob 23.Knob 23 is a metal material, and housing 22, knob 23 top overcoat plastic caps are inserted in knob 23 bottoms.
Adjustable coarse filter 2 bottoms are provided with water storage bottle 25.Water storage bottle 25 is a cone, the cavity body structure of conical bottom end opening cone tip sealing.Water storage bottle 25 openends are connected with housing 22, and place, water storage bottle 25 blind end circular cone tops is connected with valve 27.Water storage bottle 25 materials are advisable with transparent plastic or glass.
What flow in sampling tracheae 1 is the sample gas that contains condensate water and granule foreign.Sample gas flows into adjustable coarse filter by the air intake opening 21 of adjustable coarse filter 2.Adjustable coarse filter 2 produces centrifugal counter-rotating by wet gas current, and sample gas and condensate water and granule foreign are separated.Because the inertia ratio sample gas of condensate water and granule foreign is big doubly a lot, is thrown to housing 22 inwalls, when condensate water and granule foreign with lose inertia after inwall contact, separate with sample gas along the inwall whereabouts, in the cone water storage bottle 25 bottom entering.The air-flow that rotation descends is drawn close to the center of adjustable coarse filter 2 along with the contraction of circular cone, after air-flow arrives water storage bottle 25 cone lower ends, just begins rotation and rises, and the sample gas after the purification is discharged by gas outlet 24.
In detection, do not need to pause, operating personnel only need rotary knob 23, can regulate sample gas flow size, to satisfy the requirement of motor vehicle emission instrument to different tested automobile sample gas amounts.
Along with collection obtains condensate water and the granule foreign amount constantly increases, the condensate water liquid level is provided with scale label 26 along water storage bottle 25 sidewalls and rises.When liquid level rises to scale 10, can weaken sample gas and condensate water and granule foreign centrifugation, as long as open valve 27 discharging condensate water and the granule foreigns that link to each other with water storage bottle 25 blind ends.Close after draining, usual valve 27 is a closed condition again.
Operating personnel need can not throw off the water storage bottle 25 of adjustable coarse filter 2 by instrument with housing 22, remove the filter core 28 that housing 22 inner chambers are set, and clean filter core 28 and housing 22 inner chambers, install after finishing and restore.Cleaned once in common one month, adjustable coarse filter 2 does not need to change.
The relative two sides of adjustable coarse filter 2 housings, 22 outer walls are provided with air intake opening 21 and gas outlet 24 respectively.Air intake opening 21 and gas outlet 24 are the Rotary-table loop configuration.Rotary-table large circle end outer wall is threaded with housing 22, has guaranteed that frequent dismounting tracheae can not cause wearing and tearing housing 22.Even air intake opening 21 or gas outlet 24 wearing and tearing, it is also convenient to change.Rotary-table along circumference setting at least three road grooves, had both prevented the tracheae landing near small circle ring end outside surface, guaranteed again and the sealing of tracheae Plug Division.Connect tracheae 4 and peg graft with gas outlet 24, connect near the outside surface cover of the port collar 3 and the locking of tracheae 4, the sample gas of having stopped not need often to dismantle the position is leaked.Rotary-table material and housing 22 adapt.
Claims (4)
1. a motor vehicle emission instrument detects servicing unit, comprise that the motor vehicle emission collector is connected with filtrator by sampling tracheae (1), filtrator is connected with the motor vehicle emission detector by instrument tracheae (6), it is characterized in that, described filtrator comprises an adjustable coarse filter (2) and a fine filtrator (5), adjustable coarse filter (2) is connected with the automobile emission gas collector by sampling tracheae (1), adjustable coarse filter (2) is connected with fine filtrator (5) by connecting tracheae (4), fine filtrator (5) is connected with the motor vehicle emission detector by instrument tracheae (6), described adjustable coarse filter (2) bottom is provided with water storage bottle (25), and water storage bottle (25) is connected with valve (27).
2. a kind of motor vehicle emission instrument according to claim 1 detects servicing unit, it is characterized in that adjustable coarse filter (2) top is provided with housing (22), housing (22) inwall is the cavity body structure that an end seals an end opening Rotary-table, in housing (22) cavity filter core (28) is set, housing (22) top is provided with knob (23), described adjustable coarse filter (2) bottom is provided with water storage bottle (25), water storage bottle (25) is the cavity body structure of cone conical bottom end opening cone tip sealing, water storage bottle (25) openend is connected with housing (22), water storage bottle (25) blind end is connected with valve (27), and the sidewall of water storage bottle (25) is provided with scale label (26).
3. a kind of motor vehicle emission instrument according to claim 1 detects servicing unit, it is characterized in that the relative two sides of described adjustable coarse filter (2) upper body (22) outer wall are provided with air intake opening (21) and gas outlet (24) respectively, described adjustable coarse filter (2) air intake opening (21) is pegged graft with sampling tracheae (1), pegging graft with being connected tracheae (4) in described adjustable coarse filter (2) gas outlet (24), connects near the outside surface of tracheae (4) port collar (3) is set.
4. a kind of motor vehicle emission instrument according to claim 1 detects servicing unit, it is characterized in that described fine filtrator (5) air intake opening and is connected tracheae (4) grafting, described fine filtrator (5) gas outlet and instrument tracheae (6) grafting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201475857U CN201637584U (en) | 2010-04-01 | 2010-04-01 | Auxiliary device for detection of automobile exhaust |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201475857U CN201637584U (en) | 2010-04-01 | 2010-04-01 | Auxiliary device for detection of automobile exhaust |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201637584U true CN201637584U (en) | 2010-11-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201475857U Expired - Fee Related CN201637584U (en) | 2010-04-01 | 2010-04-01 | Auxiliary device for detection of automobile exhaust |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201637584U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103308317A (en) * | 2013-07-04 | 2013-09-18 | 交通运输部公路科学研究院 | Liquid water drainage quantity testing device and method of automobile exhaust pipe |
| CN106769236A (en) * | 2016-11-11 | 2017-05-31 | 广汽本田汽车有限公司 | Vehicular exhaust sampling mechanism, Vehicular exhaust detection means and method |
| CN110869732A (en) * | 2017-07-17 | 2020-03-06 | 罗伯特·博世有限公司 | Connection device for an exhaust gas measurement system |
-
2010
- 2010-04-01 CN CN2010201475857U patent/CN201637584U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103308317A (en) * | 2013-07-04 | 2013-09-18 | 交通运输部公路科学研究院 | Liquid water drainage quantity testing device and method of automobile exhaust pipe |
| CN106769236A (en) * | 2016-11-11 | 2017-05-31 | 广汽本田汽车有限公司 | Vehicular exhaust sampling mechanism, Vehicular exhaust detection means and method |
| CN106769236B (en) * | 2016-11-11 | 2019-07-23 | 广汽本田汽车有限公司 | Vehicular exhaust sampling mechanism, Vehicular exhaust detection device and method |
| CN110869732A (en) * | 2017-07-17 | 2020-03-06 | 罗伯特·博世有限公司 | Connection device for an exhaust gas measurement system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101117 Termination date: 20170401 |
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| CF01 | Termination of patent right due to non-payment of annual fee |