CN204247618U - A kind of stationary source particle monitoring instrument clean air blowing mechanism - Google Patents
A kind of stationary source particle monitoring instrument clean air blowing mechanism Download PDFInfo
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- CN204247618U CN204247618U CN201420657289.XU CN201420657289U CN204247618U CN 204247618 U CN204247618 U CN 204247618U CN 201420657289 U CN201420657289 U CN 201420657289U CN 204247618 U CN204247618 U CN 204247618U
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Abstract
The application provides a kind of clean air blowing mechanism for stationary source particle monitoring instrument, it is characterized in that, described clean air blowing mechanism comprises, pedestal; Pipe group welding piece (1), described pipe group welding piece stretches out from the side of described pedestal, and is connected with described pedestal; With blower weldment (2), described blower assembly is arranged on described pipe group welding piece outside and is connected with described pipe group welding piece, wherein, the inside of described pipe group welding piece is limited with multilayer tube chamber, and the internal diameter of described multilayer tube chamber successively decreases from outer layers towards inner layers.The utility model provides stable, uniform purging air for stationary source particle monitoring instrument, stop that flue dust is to the pollution of glass lens, and purging air can not pollute to glass window.
Description
Technical field
The utility model relates to cleaning systems, especially a kind of stationary source particle monitoring instrument clean air blowing mechanism.
Background technology
Eyeglass when particle monitoring instrument uses easily is subject to the pollution of flue dust, and online wiping is very inconvenient again, utilizes continuous print moving air to purge instrument, has great role to the pollution of stop flue dust to glass lens.Conventional particles thing monitor purging system structure just vertically passes into continuous-flow air simply before incidence window glass, the direct contact window glass of purging air.Above structure has two aspect shortcomings: the aqueous vapor 1) in cleaning air and pollutant will pollute glass window; 2) owing to vertically passing into cleaning air, therefore the cleaning of cleaning air to glass window is uneven, and subregion even can not be cleaned.
Utility model content
For overcoming existing defect, the utility model proposes a kind of stationary source particle monitoring instrument clean air blowing mechanism.
For a clean air blowing mechanism for stationary source particle monitoring instrument, it is characterized in that, comprising: pedestal; Pipe group welding piece, described pipe group welding piece stretches out from the side of described pedestal, and is connected with described pedestal; With blower weldment, described blower assembly is arranged on described pipe group welding piece outside and is connected with described pipe group welding piece, and wherein, the inside of described pipe group welding piece is limited with multilayer tube chamber, and the internal diameter of described multilayer tube chamber successively decreases from outer layers towards inner layers.
Wherein, pipe group welding piece comprises: guide duct, and described guide duct is fastened on the side of described pedestal, and stretches out from described pedestal; Interior pipe group welding piece, it is outside that described interior pipe group welding piece is fastened on described guide duct; With outer tube group welding piece, described outer tube group welding piece is set in described guide duct and described interior pipe group welding piece is outside.
Described blower weldment comprises gas-tpe fitting and sealing ring, and described gas-tpe fitting is arranged on described outer tube group welding piece, and described sealing ring is arranged between described gas-tpe fitting and described outer tube group welding piece.
Wherein, guide duct inner wall section flow-disturbing mechanism is provided with.
Wherein, flow-disturbing mechanism is stage portion, and described stage portion is arranged on the internal wall of pipe orifice place engaged with described outer tube group welding piece of described guide duct.
The nozzle diameter of outer tube group welding piece, induced duct, interior pipe group welding piece and guide duct is for successively decrease successively.
Wherein, pedestal is hollow.
Wherein, sealing gasket is arranged between described guide duct and described pedestal.
Wherein, interior pipe group welding piece, outer tube group welding piece guide duct and induced duct are all hollow circular cylinder.
Wherein, interior pipe group welding piece, outer tube group welding piece, guide duct and induced duct are for being coaxially set.
The utility model provides stable, uniform purging air for stationary source particle monitoring instrument, stop that flue dust is to the pollution of glass lens, and purging air can not pollute to glass window.
Accompanying drawing explanation
Figure 1A and 1B is the structural representation of stationary source particle monitoring instrument clean air blowing mechanism.
Fig. 2 is the schematic diagram that stationary source particle monitoring instrument clean air blowing mechanism is installed on instrument.
Fig. 3 is the operating diagram of stationary source particle monitoring instrument clean air blowing mechanism.
Fig. 4 is the schematic perspective view of the clean air blowing mechanism shown in Fig. 3.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, a kind of stationary source particle monitoring instrument clean air blowing mechanism that the utility model provides is described in detail.
Figure 1A and 1B illustrates a kind of front view and sectional view thereof of the clean air blowing mechanism for stationary source particle monitoring instrument respectively.Fig. 2 shows this blowing mechanism and is installed to schematic diagram on monitor.As shown in Figure 1A to Fig. 2, this stationary source particle monitoring instrument clean air blowing mechanism comprises, pedestal 10, from the side of pedestal 10 outward extending pipe group welding piece 1 and be arranged on the blower weldment 2 of pipe group welding piece 1 outside, air-flow is blown into from blower weldment 2, then pipe group welding piece 1 is flowed over, and make the evenly flowing fast in tube chamber of air-flow due to the special construction of pipe group welding piece 1, thus effectively stop flue dust to the pollution of glass lens 3 being arranged on pedestal 10 opposite side.Here, pedestal 10 is hollow, and is connected with pipe group welding piece 1.
Particularly, pipe group welding piece 1 can be made up of interior pipe group welding piece 11, outer tube group welding piece 12, guide duct 13 and induced duct 14.Wherein, guide duct 13 is fastened on the side of pedestal 10 and is connected with pedestal 10; It is outside that interior pipe group welding piece 11 is fastened on guide duct 13, and induced duct 14 is set in the length that the outside and length of induced duct of interior pipe group welding piece 11 is less than interior pipe group welding piece 11, and induced duct 14 is connected with guide duct 13; It is outside and be connected with induced duct 14 with interior pipe group welding piece 11 respectively that outer tube group welding piece 12 is set in induced duct 14, and the length that arranges of outer tube group welding piece 12 is greater than the length of induced duct 14 and is less than the length of interior pipe group welding piece 11.Interior pipe group welding piece 11, outer tube group welding piece 12, guide duct 13 and induced duct 14 is all hollow circular cylinder and coaxial line (as shown in Figure 1B) arrange.
By above-mentioned set-up mode, make to be limited with three layers of tube chamber between air inlet and gas outlet.Here, because the nozzle diameter of outer tube group welding piece 12, induced duct 14, interior pipe group welding piece 11 and guide duct 13 is for successively decrease successively, the air-flow therefore entered directly can not lead to gas outlet, but constantly to surrounding diffusion, makes air-flow more even at circumferencial direction.And successively decreasing gradually of the diameter of outer tube group welding piece 12, induced duct 14, interior pipe group welding piece 11 makes the movement velocity of air-flow accelerate, the wind speed of air outlet is improved, effectively stop flue dust to the pollution of glass lens 3.
In addition, in order to the air-tightness of reinforced pipe assembly, sealing gasket 5 can be set between guide duct 13 and pedestal 10.
Blower weldment 2 can comprise gas-tpe fitting 21 and sealing ring 22, and wherein, gas-tpe fitting 21 is hollow circular cylinder and is arranged on outer tube group welding piece 12, and is connected with outer tube group welding piece 12.Sealing ring 22 is arranged between gas-tpe fitting and outer tube group welding piece, for strengthening the air-tightness of blower weldment 2.Further, gas-tpe fitting 21 is from the horizontal by miter angle.
In addition, as shown in Figure 4, the position, side that air-flow enters second layer tube chamber (induced duct 14) inwall is provided with step position a, and this step position has flow-disturbing effect.
Guide duct 13 nozzle diameter cut-off rule is just to gas-tpe fitting 21, and the pipe height of its nozzle diameter cut-off rule left part is in charge of height in right side.
Fig. 3 shows the air flow direction figure of clean air blowing mechanism.As shown in Figure 3, the cleaning air that cleaning air enters from gas-tpe fitting 21 enters tube chamber, is divided into two strands of air-flows after bumping against the inner tubal wall of outer tube group welding piece 12.One enters from upper right side, and velocity attitude is tilted to the left gradually; Another stock enters from lower left, and velocity attitude is tilted to the right gradually.Because induced duct 14 is provided with the stage portion with flow-disturbing effect, (the nozzle diameter cut-off rule of induced duct 14 is just to gas-tpe fitting 21, the pipe height of its nozzle diameter cut-off rule left part is in charge of height in right side, thus produce stage portion), left part air-flow is little through this stage portion resistance, and therefore air velocity is large; And right part air-flow is large through this step position resistance, therefore air velocity is little.After two strands of air-flows enter, owing to there is speed difference, the air velocity of left part is greater than the air velocity of right part, thus while intraluminal air-flow is flowed in the vertical direction, flow a little along clockwise direction, produce the rotary wind of flowing, this rotation wind energy provides stable, uniform purging air to him.
In addition, because cleaning air directly can not lead to gas outlet from air inlet, but constantly to surrounding diffusion, make air-flow more even at circumferencial direction.And the nozzle diameter of outer tube group welding piece 12, induced duct 14, interior pipe group welding piece 11 and guide duct 13 is successively decrease successively to make the movement velocity of air-flow accelerate, the wind speed of air outlet is improved, as shown in Figure 3, effectively stop flue dust to the pollution of glass lens 3, and through glass lens 3 mouthfuls blowing evenly, make cleaning cleaner.
In addition, because glass lens 3 to be purged is arranged on the opposite side of pedestal 10, therefore, purging air does not contact glass window, so moisture in purging air and pollutant can not pollute glass window, and just play the effect intercepting outside flue dust and enter.
Finally it should be noted that, above embodiment is only in order to describe the technical solution of the utility model instead of to limit this technical method, the utility model can extend in application other amendment, change, application and embodiment, and therefore think that all such amendments, change, application, embodiment are all in spirit of the present utility model and teachings.
Claims (10)
1. for a clean air blowing mechanism for stationary source particle monitoring instrument, it is characterized in that, described clean air blowing mechanism comprises:
Pedestal;
Pipe group welding piece (1), described pipe group welding piece stretches out from the side of described pedestal, and is connected with described pedestal; With
Blower weldment (2), described blower weldment is arranged on described pipe group welding piece outside and is connected with described pipe group welding piece,
Wherein, the inside of described pipe group welding piece is limited with multilayer tube chamber, and the internal diameter of described multilayer tube chamber successively decreases from outer layers towards inner layers.
2. clean air blowing mechanism according to claim 1, is characterized in that, described pipe group welding piece (1) comprising:
Guide duct (13), described guide duct is fastened on the side of described pedestal, and stretches out from described pedestal;
Interior pipe group welding piece (11), it is outside that described interior pipe group welding piece is fastened on described guide duct; With
Outer tube group welding piece (12), described outer tube group welding piece is set in described guide duct and described interior pipe group welding piece is outside.
3. clean air blowing mechanism according to claim 2, it is characterized in that, described blower weldment (2) comprises gas-tpe fitting (21) and sealing ring (22), described gas-tpe fitting is arranged on described outer tube group welding piece, and described sealing ring is arranged between described gas-tpe fitting and described outer tube group welding piece.
4. clean air blowing mechanism according to claim 2, is characterized in that, is provided with flow-disturbing mechanism to described guide duct (13) inner wall section.
5. clean air blowing mechanism according to claim 4, is characterized in that, described flow-disturbing mechanism is stage portion, and described stage portion is arranged on the internal wall of pipe orifice place engaged with described outer tube group welding piece of described guide duct.
6. clean air blowing mechanism according to claim 2, it is characterized in that, the nozzle diameter of outer tube group welding piece (12), induced duct (14), interior pipe group welding piece (11) and guide duct (13) is for successively decrease successively.
7. clean air blowing mechanism according to claim 1, is characterized in that, described pedestal is hollow.
8. clean air blowing mechanism according to claim 2, is characterized in that, also comprise sealing gasket, and described sealing gasket is arranged between described guide duct and described pedestal.
9. clean air blowing mechanism according to claim 2, is characterized in that, described interior pipe group welding piece (11), outer tube group welding piece (12), guide duct (13) and induced duct (14) are all hollow circular cylinder.
10. clean air blowing mechanism according to claim 2, it is characterized in that, described interior pipe group welding piece (11), outer tube group welding piece (12), guide duct (13) and induced duct (14) are for being coaxially set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420657289.XU CN204247618U (en) | 2014-11-04 | 2014-11-04 | A kind of stationary source particle monitoring instrument clean air blowing mechanism |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420657289.XU CN204247618U (en) | 2014-11-04 | 2014-11-04 | A kind of stationary source particle monitoring instrument clean air blowing mechanism |
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| Publication Number | Publication Date |
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| CN204247618U true CN204247618U (en) | 2015-04-08 |
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| CN201420657289.XU Active CN204247618U (en) | 2014-11-04 | 2014-11-04 | A kind of stationary source particle monitoring instrument clean air blowing mechanism |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105618429A (en) * | 2014-11-04 | 2016-06-01 | 佛山市南华仪器股份有限公司 | Clean air blowing mechanism of stationary pollution source particulate matter monitor |
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2014
- 2014-11-04 CN CN201420657289.XU patent/CN204247618U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105618429A (en) * | 2014-11-04 | 2016-06-01 | 佛山市南华仪器股份有限公司 | Clean air blowing mechanism of stationary pollution source particulate matter monitor |
| CN105618429B (en) * | 2014-11-04 | 2017-12-29 | 佛山市南华仪器股份有限公司 | A kind of stationary source particle monitoring instrument clean air blowing mechanism |
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