CN213378428U - Air suction device with Venturi tube - Google Patents
Air suction device with Venturi tube Download PDFInfo
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- CN213378428U CN213378428U CN202022129761.0U CN202022129761U CN213378428U CN 213378428 U CN213378428 U CN 213378428U CN 202022129761 U CN202022129761 U CN 202022129761U CN 213378428 U CN213378428 U CN 213378428U
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- venturi
- diameter
- cover
- induced drafts
- aspiration channel
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Abstract
The utility model discloses a take venturi's device that induced drafts, including aspiration channel, venturi, flap valve 3, the cover that induced drafts, venturi is located inside the aspiration channel, by including diffusion portion, throat, entrance down to, the flap valve is located the diffusion portion lower part, and the flap valve is equipped with the handle in the tuber pipe outside, the cover that induced drafts is connected bottom the aspiration channel. The utility model discloses a device induced drafts has simple structure, facilitates the use, and suction is strong, and the amount of wind advantage such as little conveniently is handled the pollutant is concentrated.
Description
Technical Field
The utility model belongs to the technical field of gas treatment equipment, especially, relate to a take venturi's device that induced drafts.
Background
With the increasing requirement of environmental protection, tail gas treatment equipment has become indispensable environmental protection product in industrial production, and the device that induced drafts is tail gas treatment equipment indispensable device, plays important role in the improvement of fixed raise dust point or the pollution source that gives off such as cutting, welding, polishing. In order to collect the emitted pollutants completely, the air suction device is required to have strong suction force, and in order to reduce the amount of tail gas treatment, the air suction device is required not to suck too much air, that is, the air suction device is required to have strong suction force and small air quantity. The current air suction devices aim to obtain powerful suction. The fan power is generally increased, and although a larger suction force can be obtained, too much air which does not need to be treated is sucked, so that the difficulty of tail gas treatment is increased.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model discloses a take venturi's device that induced drafts has simple structure, facilitates the use, and suction is strong, and the amount of wind advantage such as little conveniently is concentrated to the pollutant and is handled.
In order to achieve the technical purpose, the utility model adopts the following technical scheme:
the utility model provides a take venturi's device that induced drafts, includes aspiration channel, venturi, flap valve 3, the cover that induced drafts, venturi is located inside the aspiration channel, by including diffusion portion, throat, entrance from bottom to top, the flap valve is located the diffusion portion lower part, and the flap valve is equipped with the handle in the tuber pipe outside, the cover that induced drafts is connected with the aspiration channel bottom.
Furthermore, the diameter of the bottom of the diffusion part is the same as that of the air suction pipe, and the diameter of the upper part of the diffusion part is gradually reduced to be the same as that of the throat part.
Furthermore, the diameter of the throat part is 1/3-1/2 of the diameter of the suction pipe.
Furthermore, the diameter of the bottom of the inlet section is the same as that of the throat part, and the diameter of the inlet section is gradually increased upwards and is the same as that of the suction pipe.
Furthermore, the air suction cover is a circular cover or a square cover and is made of plastics, silica gel or metal.
The utility model discloses a take venturi's cover that induced drafts combines venturi structure and aspiration channel, and gaseous entering venturi structure after collecing through the cover that induced drafts, the diffusion part diameter of venturi structure dwindles gradually, and the wind speed increases to the throat back, and the wind speed increases to the biggest, produces the negative pressure to the gas in the aspiration channel cover, attracts the gaseous upward movement in the cover that induced drafts, gets into the entrance of venturi structure after passing the throat, and the entering aspiration channel collects.
Drawings
Fig. 1 is a structure diagram of an air suction device with venturi tube.
The device comprises a suction pipe 1, a venturi tube 2, a flap valve 3, a suction hood 4, a diffusion part 201, a throat part 202, an inlet section 203 and a handle 301.
Detailed Description
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
As shown in fig. 1, an air suction device with a venturi tube comprises an air suction pipe 1, a venturi tube 2, a flap valve 3 and an air suction cover 4, wherein the venturi tube 2 is positioned inside the air suction pipe 1 and comprises a diffusion part 201, a throat part 202 and an inlet section 203 from bottom to top, the diameter of the bottom of the diffusion part 201 is the same as that of the air suction pipe 1, the diameter of the upper part of the diffusion part 201 is gradually reduced to be the same as that of the throat part 202, the diameter of the throat part 202 is 1/3-1/2 of the diameter of the air suction pipe 1, the diameter of the bottom of the inlet section 203 is the same as that of the throat part 202; the flap valve 3 is positioned at the lower part of the diffuser 201, the flap valve 3 is provided with a handle 301 outside the air duct 1, and the air suction hood 4 is connected with the bottom of the air suction duct 1; the air suction cover 4 is a circular cover and is made of plastics, silica gel or metal.
In some embodiments, the air suction hood 4 is a square hood.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. The utility model provides a take venturi's device that induced drafts, its characterized in that, includes aspiration channel (1), venturi (2), flap valve (3), cover (4) induced drafts, venturi (2) are located aspiration channel (1) inside, by including diffusion (201), throat (202), entry section (203) from bottom to top, flap valve (3) are located diffusion (201) lower part, and flap valve (3) are equipped with handle (301) in aspiration channel (1) outside, cover (4) induced drafts is connected with aspiration channel (1) bottom.
2. The suction device with venturi according to claim 1, wherein the diameter of the bottom of the diffuser portion (201) is the same as the diameter of the suction pipe (1), and the diameter of the upper portion is gradually reduced to be the same as the diameter of the throat portion (202).
3. The suction device with venturi according to claim 1, wherein the diameter of the throat portion (202) is 1/3-1/2 of the diameter of the suction pipe (1).
4. The suction device with venturi according to claim 1, wherein the bottom of the inlet section (203) has the same diameter as the throat (202), and the diameter of the inlet section gradually increases upwards to have the same diameter as the suction pipe (1).
5. The air suction device with the Venturi tube according to claim 1, wherein the air suction cover (4) is a circular cover or a square cover and is made of plastics, silica gel or metal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022129761.0U CN213378428U (en) | 2020-09-25 | 2020-09-25 | Air suction device with Venturi tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022129761.0U CN213378428U (en) | 2020-09-25 | 2020-09-25 | Air suction device with Venturi tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213378428U true CN213378428U (en) | 2021-06-08 |
Family
ID=76182909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022129761.0U Active CN213378428U (en) | 2020-09-25 | 2020-09-25 | Air suction device with Venturi tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213378428U (en) |
-
2020
- 2020-09-25 CN CN202022129761.0U patent/CN213378428U/en active Active
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Legal Events
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| GR01 | Patent grant |