CN203606137U - Flow regulation device used for flow analysis meter - Google Patents
Flow regulation device used for flow analysis meter Download PDFInfo
- Publication number
- CN203606137U CN203606137U CN201320686704.XU CN201320686704U CN203606137U CN 203606137 U CN203606137 U CN 203606137U CN 201320686704 U CN201320686704 U CN 201320686704U CN 203606137 U CN203606137 U CN 203606137U
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- ring
- flow regulator
- rings
- fan interface
- sealing gasket
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- Expired - Lifetime
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- 238000005206 flow analysis Methods 0.000 title abstract 2
- 238000009434 installation Methods 0.000 claims abstract description 6
- 238000007789 sealing Methods 0.000 claims description 26
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 239000007789 gas Substances 0.000 description 10
- 238000000034 method Methods 0.000 description 6
- 238000001514 detection method Methods 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 230000001052 transient effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
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Abstract
The utility model provides a flow regulation device used for a flow analysis meter. The flow regulation device is characterized by comprises a draught fan interface, a fixed check ring, and a plurality of adjustable check rings. The fixed check ring is connected with the draught fan interface. The plurality of adjustable check rings are disposed on the fixed check ring and are between the air intake of an exhaust fan and the draught fan interface. The fixed check ring is provided with mounting holes used to install the plurality of adjustable check rings. Each of the plurality of adjustable check rings is provided with a slot hole on an end, so as to adjust areas of a section of the air intake through adjusting installation positions of slot holes on the adjustable check rings relative to the mounting holes on the fixed check ring.
Description
Technical field
The utility model relates to gas flow rate analyzer field; Particularly, relate to the flow regulator of the traffic analyzer that automobile transient behavior method uses.
Background technology
Along with increasing sharply of China's automobile pollution, the pollution that motor vehicle causes is day by day serious, and pollution problem has become current people and has been concerned about the most and is badly in need of one of the important topic solving.The important method detecting as automobile exhaust contaminant, simple transient behavior method (VMAS method) can be added up discharge gross mass, the true emission behaviour of monitoring vehicle, equipment cost is not high, and measurement result is accurate, has become the focus of people's research.VMAS (Vehicle Mass Analysis System) detection method has good application foundation at US and European, is also applying and is promoting in China.
Gasoline vehicle simple transient worknig condition method discharge detection system be analog machine motor-car under actual condition, the detection system of instantaneous detection tailpipe emission situation, system is made up of chassis dynamometer, five gas analyzer, traffic analyzer, computer control system.Traffic analyzer is wherein mainly used to measure flow, pressure, temperature and the oxygen concentration of gasoline car emission gases and surrounding air mixed gas, and its chief component comprises: gas collection flexible pipe and gas collection Taper Pipe, air exhauster, flow sensor, pressure transducer, temperature sensor and dilution lambda sensor etc.
The Main Function of air exhauster is that gasoline car emission gases and surrounding air mixed gas are drawn in measuring tube, in the existing industry standard of China (HJ/T290-2006), air exhauster is proposed to clear and definite technical requirement: air pump should be reliability and durability, in the time affecting without discharge, should guarantee that by flowmeter flow range be (118-165L/s).And we find in actual applications, the flow that flowmeter is measured is except relevant with the rotating speed of the inner structure of air exhauster, motor, also with relevant to structure and the length of the airduct section flow sensor from air exhauster air outlet, therefore to guarantee that flowmeter flow range must take all influence factors into account in the numerical value requiring, and will be through accurately calculating and experimental verification.If the pipeline configuration to traffic analyzer is slightly changed, just may affect the measurement numerical value of flowmeter and exceed measurement range, need important computations and type selecting.Therefore, need to flow regulator be set at air exhauster air inlet place, improve thus the applicability of air exhauster to this requirement.
A kind of measuring tube and rectifier thereof of gas flow analyzer are disclosed in Chinese utility model patent application CN201034642Y, rectifier disclosed herein is a column being made up of some grids, the length of column is more than or equal to 0.4 times of measuring tube pipe diameter, and the length of side of grid is less than or equal to 0.075 times of measuring tube diameter.This rectifier structure is loaded down with trivial details, complex manufacturing technology, and cost is higher, and does not have suitability.
Therefore, need to provide a kind of gas that can not only extract out air exhauster carry out effectively stably rectification, and simple in structure, there is suitability and the low flow regulator of cost.
Utility model content
For overcoming existing defect, the utility model proposes a kind of flow regulator for traffic analyzer, it is characterized in that, described flow regulator comprises: fan interface; Fixing back-up ring, described fixing back-up ring is connected with described fan interface; With multiple adjustable back-up rings, described multiple adjustable back-up rings are arranged on described fixing back-up ring and between air exhauster air inlet and described fan interface; Wherein on described fixing back-up ring, be provided with the mounting hole for described multiple adjustable back-up rings are installed; Each of described multiple adjustable back-up rings is provided with slotted hole in its one end, thereby by regulating slotted hole on described adjustable back-up ring to regulate the cross-sectional sizes of air inlet with respect to the installation site of the mounting hole of described fixing back-up ring.
Preferably, an end of described fan interface has step shape, has large end in the end of step shape and is set on described air exhauster air inlet and with described air exhauster air inlet and engages and be integrated.
Preferably, described fixing back-up ring has toroidal, and is provided with the mounting hole for described multiple adjustable back-up rings are installed on its anchor ring.
Preferably, each in described multiple adjustable back-up rings has semicircular ring shape, and its other end is provided with through hole.
Preferably, described flow regulator also comprises multiple sealing gaskets, at least one in described sealing gasket is arranged between the small end of the end with step shape of described fixing back-up ring and fan interface, and described sealing gasket at least another is arranged between described fixing back-up ring and described air exhauster air inlet.
Preferably, described sealing gasket has annular shape.
Preferably, the external diameter of described sealing gasket equals the external diameter of described fixing back-up ring, and the internal diameter of described sealing gasket is less than the internal diameter of the small end in one end with step shape of described fan interface.
Preferably, the small end in the end with step shape of described fan interface is resisted against on described sealing gasket.
According to flow regulator of the present utility model have advantages of simple in structure, cost is low, rectification suitability is strong and rectification effect is stable.
Accompanying drawing explanation
Fig. 1 is according to the structural representation of the flow regulator of the utility model embodiment.
Fig. 2 is the fixing back-up ring of the flow regulator in Fig. 1 and the scheme of installation of adjustable back-up ring.
Wherein: 1-air exhauster, 2-fan interface, 3-is adjustable back-up ring, the fixing back-up ring of 4-, 5-sealing gasket.
Embodiment
The flow regulator of traffic analyzer the utility model being provided below in conjunction with the drawings and specific embodiments is described in detail.
Fig. 1 is the concrete structure figure of the flow regulator that the utility model proposes.Fig. 2 is the scheme of installation of fixing back-up ring and adjustable back-up ring.
As illustrated in fig. 1 and 2, comprise according to the flow regulator for traffic analyzer of the utility model embodiment: fan interface 2, the fixing back-up ring 4 being connected with fan interface 2, and be arranged on multiple adjustable back-up rings 3 on fixing back-up ring 4 and between air exhauster air inlet and fan interface.
On fixing back-up ring 4, be provided with the mounting hole for described multiple adjustable back-up rings 3 are installed.Each adjustable back-up ring in multiple adjustable back-up rings 3 is provided with slotted hole in its one end, thereby by regulating slotted hole on described adjustable back-up ring to regulate the cross-sectional sizes of air inlet with respect to the installation site of the mounting hole of described fixing back-up ring, and the other end of adjustable back-up ring 3 is provided with the through hole being installed on fixing back-up ring 4.
An end of fan interface 2 has step shape, there is in the end of step shape the larger large end of diameter and be set on air exhauster air inlet and can be connected by screw with this air exhauster air inlet and engages and be integrated, be resisted against on the sealing gasket of fixing between back-up ring 4 and fan interface 2 and there is the less small end of diameter in the end of step shape.Certainly, the utility model is not limited to this, and the large end of fan interface can be assembled into one by any other connected mode and air exhauster air inlet.
Fixing back-up ring is the iron ring with toroidal, and on its anchor ring, is provided with the mounting hole for described multiple adjustable back-up rings are installed.But the utility model is not limited to this, fixing back-up ring can be the circle with any material of toroidal.
Each in multiple adjustable back-up rings is to have the annular iron plate of semicircle, and its other end is provided with through hole.In the present embodiment, the quantity of adjustable back-up ring is two, but the utility model is not limited to this, and the quantity of adjustable back-up ring can be set as multiple as required, and adjustable back-up ring also can be made up of other material.
Also comprise multiple sealing gaskets 5 according to the flow regulator of the present embodiment, at least one in multiple sealing gaskets is arranged between fixing back-up ring 4 and the small end of fan interface 2, and multiple sealing gaskets at least another is arranged between fixing back-up ring 4 and described air exhauster air inlet.
Sealing spacer has annular shape.And the external diameter of sealing gasket 5 equals the external diameter of fixing back-up ring 4, the internal diameter of sealing gasket 5 is less than the internal diameter of the small end in the end with step shape of fan interface 2.
Sealing gasket is made and is attached on two end faces of fixing back-up ring 4 by elasticity exotic material.Because cyclic sealing gasket is affixed on fixing back-up ring both ends of the surface securely, therefore in the time that sealing gasket is mounted between air exhauster air inlet and fan interface, sealing gasket meeting compressive deformation, its end face is close to the end face of air inlet and fan interface, thereby plays the effect of sealed against leakage.
Finally it should be noted that, above embodiment is only in order to describe the technical solution of the utility model rather than this technical method is limited, the utility model can extend to other modification, variation, application and embodiment in application, and therefore thinks that all such modifications, variation, application, embodiment are in spirit of the present utility model with instruct in scope.
Claims (8)
1. for a flow regulator for traffic analyzer, it is characterized in that, described flow regulator comprises:
Fan interface;
Fixing back-up ring, described fixing back-up ring is connected with described fan interface; With
Multiple adjustable back-up rings, described multiple adjustable back-up rings are arranged on described fixing back-up ring and between air exhauster air inlet and described fan interface;
Wherein on described fixing back-up ring, be provided with the mounting hole for described multiple adjustable back-up rings are installed; Each of described multiple adjustable back-up rings is provided with slotted hole in its one end, thereby by regulating slotted hole on described adjustable back-up ring to regulate the cross-sectional sizes of air inlet with respect to the installation site of the mounting hole of described fixing back-up ring.
2. flow regulator according to claim 1, it is characterized in that, an end of described fan interface has step shape, has large end in the end of step shape and is set on described air exhauster air inlet and with described air exhauster air inlet and engages and be integrated.
3. flow regulator according to claim 1, is characterized in that, described fixing back-up ring has toroidal, and is provided with the mounting hole for described multiple adjustable back-up rings are installed on its anchor ring.
4. flow regulator according to claim 1, is characterized in that, each in described multiple adjustable back-up rings has semicircular ring shape, and its other end is provided with through hole.
5. flow regulator according to claim 1, it is characterized in that, also comprise multiple sealing gaskets, at least one in described sealing gasket is arranged between the small end of the end with step shape of described fixing back-up ring and fan interface, and described sealing gasket at least another is arranged between described fixing back-up ring and described air exhauster air inlet.
6. flow regulator according to claim 5, is characterized in that, described sealing gasket has annular shape.
7. flow regulator according to claim 5, is characterized in that, the external diameter of described sealing gasket equals the external diameter of described fixing back-up ring, and the internal diameter of described sealing gasket is less than the internal diameter of the small end in one end with step shape of described fan interface.
8. flow regulator according to claim 7, is characterized in that, the small end in the end with step shape of described fan interface is resisted against on described sealing gasket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320686704.XU CN203606137U (en) | 2013-10-31 | 2013-10-31 | Flow regulation device used for flow analysis meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320686704.XU CN203606137U (en) | 2013-10-31 | 2013-10-31 | Flow regulation device used for flow analysis meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203606137U true CN203606137U (en) | 2014-05-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320686704.XU Expired - Lifetime CN203606137U (en) | 2013-10-31 | 2013-10-31 | Flow regulation device used for flow analysis meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203606137U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106404627A (en) * | 2016-11-08 | 2017-02-15 | 张家港朗亿机电设备有限公司 | Dust environment simulating device |
-
2013
- 2013-10-31 CN CN201320686704.XU patent/CN203606137U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106404627A (en) * | 2016-11-08 | 2017-02-15 | 张家港朗亿机电设备有限公司 | Dust environment simulating device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140521 |