CN201925247U - Air flow amplifier - Google Patents
Air flow amplifier Download PDFInfo
- Publication number
- CN201925247U CN201925247U CN2010206960331U CN201020696033U CN201925247U CN 201925247 U CN201925247 U CN 201925247U CN 2010206960331 U CN2010206960331 U CN 2010206960331U CN 201020696033 U CN201020696033 U CN 201020696033U CN 201925247 U CN201925247 U CN 201925247U
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- CN
- China
- Prior art keywords
- air
- jet pipe
- suction tude
- air jet
- wall
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model discloses an air flow amplifier, which comprises an annular air inlet pipe and an air injection pipe. The air injection pipe which is a straight pipe is arranged on one side of the air inlet pipe, the air inlet pipe is provided with an annular cavity, a compressed air inlet is arranged on the outer wall surface of an annular cavity, and a plurality of air injection holes which are round holes used for injecting air into the air injection pipe are arranged on the wall surface of the annular cavity. The air flow amplifier is convenient to process and realize batch production, low in manufacturing cost, high in air flow amplifying effect and simple in structure, and aims to overcome shortcomings that a slit nozzle and a curved injection pipe of an existing air flow amplifier are high in processing difficulty and higher in cost, and the slit nozzle is easy to be blocked to bring inconvenience to use.
Description
Technical field
The utility model relates to a kind of pneumatic element, relates in particular to a kind of air mass flow amplifier.
Background technique
The air mass flow amplifier is a kind of pneumatic element that is widely used in industrial field, utilization " Koln reaches " effect, the air mass flow amplifier can convert the small flow high pressure air to the low pressure and mass flow air-flow, inlet end at the air mass flow amplifier produces underbalance effect, produce a vacuum low-pressure district, this district has extremely strong vacuum suction function, can be used for pneumatic vacuum draw solid granulates and oil smoke fog; The other end at the air mass flow amplifier is the outlet side, compressed-air actuated initial air-flow can converge mass air flow on every side, at a high speed, the air-flow of high power capacity flows out from the outlet side of air mass flow amplifier, can substitute traditional blower fan or fan and be used for air cooling and removal moisture drying.Present existing air mass flow amplifier comprises suction tude and air jet pipe, the pressurized air of small flow enters in the suction tude, offer a lot of slits spout on suction tude, pressurized air sprays into air jet pipe from the slit spout, and the low pressure and mass flow air-flow flows out from the outlet side of air jet pipe again.Wherein spout size in slit is about about 0.05mm, and the slit spout stops up easily, uses inconvenience.And air jet pipe is that internal surface is the curved surface jet pipe of curved surface, and the difficulty of processing of slit spout and curved surface jet pipe is all bigger, and manufacture cost is higher.
The model utility content
The technical problems to be solved in the utility model is, difficulty of processing at slit spout and curved surface jet pipe in the existing air mass flow amplifier is big, cost is higher and the slit spout stops up awkward defective easily, provide a kind of process facility and low cost of manufacture, air mass flow amplification effect good, be convenient to a large amount of manufacturings, air mass flow amplifier simple in structure.
The technological scheme that its technical problem that solves the utility model adopts is: a kind of air mass flow amplifier, comprise annular intake pipe, be arranged on the air jet pipe of suction tude one side, described suction tude is provided with annular chamber, the outer wall of described annular chamber is provided with compressed air inlet port, the wall of described annular chamber be provided with a plurality of in air jet pipe the fumarole of injection air, described fumarole is a circular hole, and described air jet pipe is a straight tube.
The axial section of described suction tude is a rectangle, and radial section is an annulus, and described air jet pipe is arranged on the wall of the axial side of suction tude, and described fumarole is arranged on the interior suction tude wall of air jet pipe.
Described suction tude comprises the plane wall at columniform outer wall, columniform internal face and two ends, wherein the internal diameter of the internal face of suction tude is slightly less than the air jet pipe internal diameter, suction tude wall in the described air jet pipe forms a planar annular, and fumarole is arranged on the planar annular.
The axis of described air jet pipe, the dead in line of suction tude, described fumarole is about the uniform setting of axis annular of annular chamber.
Described suction tude is provided with the wall and the air jet pipe axis normal of fumarole, each fumarole axis and air jet pipe parallel axes.
Described air jet pipe is a circular straighttube.
Described compressed air inlet port is arranged on the columniform outer wall of suction tude.
Air mass flow amplifier of the present utility model is by adopting the existing slit of the jet replacement of circular fumarole jet.Pressurized air enters suction tude from suction port, at first enter annular chamber, gas from a plurality of circular fumarole ejections sprays into the air jet pipe again, the gas of ejection is crossed air jet pipe with very high velocity flow, because air jet pipe is a straight tube, the air-flow that sprays into from a plurality of fumaroles after through a segment distance just merges mutually, air-flow fuses, the gas that promptly sprays in the air jet pipe produces " Koln reaches " effect, air-flow flows attached to the air jet pipe inwall, drive the gas flow of air jet pipe, make air jet pipe cause negative pressure near an end of fumarole.Because this negative pressure makes the air in the annular chamber outside enter air jet pipe, again from the air jet pipe ejection, forms air-flow and flows endlessly.
The utility model is simple in structure, the jet effect of its circular fumarole is identical with the jet effect of slit spout, and the effect that gas flow produces in straight tube and curved surface pipe is also identical, but because air jet pipe is a straight tube, fumarole is a circular hole, compare the processing of the slit spout of existing air mass flow amplifier and curved surface jet pipe than being easier to, low cost of manufacture is convenient to extensive application.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples, in the accompanying drawing:
Fig. 1 is the utility model embodiment's a structural representation.
Embodiment
As shown in Figure 1, a kind of air mass flow amplifier, comprise annular intake pipe 3, be arranged on the air jet pipe 1 of suction tude 3 one sides, described suction tude 3 is provided with annular chamber 35, the wall of described annular chamber 35 is provided with and is used for the suction port 4 that pressurized air enters annular chamber 35, the wall of described annular chamber 35 be provided with a plurality of in air jet pipe 1 fumarole 2 of injection air, described fumarole 2 is a circular hole, described air jet pipe 1 is a straight tube.
Described suction tude 3 is an annular, then the axial section of suction tude 3 is a rectangle, radial section is an annulus, described suction tude 3 comprises the plane wall 32,33 at columniform outer wall 31, columniform internal face 34 and two ends, suction tude 3 each walls surround the air-flow path of an annular, described suction port 4 is arranged on the suction tude 3 columniform outer wall 31, and described air jet pipe 1 is arranged on the wall 33 of suction tude 3 axial sides, then air-flow radially enters annular chamber 35, from 33 ejections of axial wall face.
Wherein the internal diameter of the internal face of suction tude 3 is slightly less than air jet pipe 1 internal diameter, because two difference in internal diameters make the wall 33 of the suction tude 3 in air jet pipe 1 form a planar annular, then fumarole 2 is arranged on the planar annular.Because the axis of described air jet pipe 1, the dead in line of suction tude 3, described fumarole 2 is about the uniform setting of axis annular of annular chamber 35.Then each fumarole 2 all equates with spacing between air jet pipe 1 inwall, and described suction tude 3 is provided with the wall 33 and air jet pipe 1 axis normal of fumarole 2, each fumarole 2 axis and air jet pipe 1 parallel axes, described air jet pipe 1 is the identical circular straighttube of internal diameter.This structure makes that the gas of ejection all is along air jet pipe 1 axial motion, has reduced resistance to motion, drives the gas flow of air jet pipe 1.The quantity that fumarole 2 is provided with and the size in aperture are according to the design of factors such as gas flow, pressure and air jet pipe 1 internal diameter thereof in the practical application, quantity of fumarole 2 settings under different requirement the and varying in size of aperture.
When pressurized air enters annular chamber 35 from suction port 4, annular chamber 35 is full of pressurized air, makes pressurized air spray from jet aperture, enters air jet pipe 1.Because " Koln reaches " effect, flow attached to air jet pipe 1 inwall from the air-flow of fumarole 2 ejections, drive the air flows in the air jet pipe 1, cause air jet pipe 1 to bring out existing negative pressure near one of fumarole 2, be inhaled at the air of annular chamber 35 suction ports.In air jet pipe 1 outlet side, air relies on inertia to leave air jet pipe 1, and gas is ejected.Above process is continuously to carry out, and air enters continuously and sprays continuously from the outlet side from suction port.So constantly carry out such process, realized the effect that air mass flow is amplified.
Claims (7)
1. air mass flow amplifier, comprise annular intake pipe, be arranged on the air jet pipe of suction tude one side, described suction tude is provided with annular chamber, the outer wall of described annular chamber is provided with compressed air inlet port, it is characterized in that, the wall of described annular chamber be provided with a plurality of in air jet pipe the fumarole of injection air, described fumarole is a circular hole, described air jet pipe is a straight tube.
2. air mass flow amplifier according to claim 1, it is characterized in that, the axial section of described suction tude is that rectangle, radial section are annulus, and described air jet pipe is arranged on the wall of the axial side of suction tude, and described fumarole is arranged on the interior suction tude wall of air jet pipe.
3. air mass flow amplifier according to claim 2, it is characterized in that, described suction tude comprises the plane wall at columniform outer wall, columniform internal face and two ends, wherein the internal diameter of the internal face of suction tude is slightly less than the air jet pipe internal diameter, suction tude wall in the described air jet pipe forms a planar annular, and fumarole is arranged on the planar annular.
4. air mass flow amplifier according to claim 3 is characterized in that, the axis of described air jet pipe, the dead in line of suction tude, and described fumarole is about the uniform setting of axis annular of annular chamber.
5. air mass flow amplifier according to claim 4 is characterized in that, described suction tude is provided with the wall and the air jet pipe axis normal of fumarole, each fumarole axis and air jet pipe parallel axes.
6. air mass flow amplifier according to claim 1 is characterized in that, described air jet pipe is a circular straighttube.
7. air mass flow amplifier according to claim 3 is characterized in that, described compressed air inlet port is arranged on the columniform outer wall of suction tude.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206960331U CN201925247U (en) | 2010-12-31 | 2010-12-31 | Air flow amplifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206960331U CN201925247U (en) | 2010-12-31 | 2010-12-31 | Air flow amplifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201925247U true CN201925247U (en) | 2011-08-10 |
Family
ID=44429098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206960331U Expired - Lifetime CN201925247U (en) | 2010-12-31 | 2010-12-31 | Air flow amplifier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201925247U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107327389A (en) * | 2017-07-31 | 2017-11-07 | 无锡双翼汽车环保科技有限公司 | Air-flow point injection device |
| WO2021208959A1 (en) * | 2020-04-15 | 2021-10-21 | Mtr Corporation Limited | Air amplifier ventilation (aav) system |
-
2010
- 2010-12-31 CN CN2010206960331U patent/CN201925247U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107327389A (en) * | 2017-07-31 | 2017-11-07 | 无锡双翼汽车环保科技有限公司 | Air-flow point injection device |
| WO2021208959A1 (en) * | 2020-04-15 | 2021-10-21 | Mtr Corporation Limited | Air amplifier ventilation (aav) system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: The development of high-tech building a road in Shenzhen City Huaqiang Nanshan District science and technology of Guangdong province 518057 13 floor Patentee after: Huaqiang infante (Shenzhen) Intelligent Technology Co. Address before: 518057, Guangdong, Shenzhen province Nanshan District science and technology in the road Huaqiang new and high-tech development building 13 Patentee before: Shenzhen Huaqiang Intelligent Technology Co., Ltd. |
|
| CP03 | Change of name, title or address | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110810 |
|
| CX01 | Expiry of patent term |