CN219362533U

CN219362533U - Venturi powder pump embedded with jet nozzle

Info

Publication number: CN219362533U
Application number: CN202223609234.5U
Authority: CN
Inventors: 柯儒群
Original assignee: Yudong Zhongshan Machinery Engineering Co ltd
Current assignee: Yudong Zhongshan Machinery Engineering Co ltd
Priority date: 2022-12-30
Filing date: 2022-12-30
Publication date: 2023-07-18
Anticipated expiration: 2032-12-30

Abstract

The utility model relates to a venturi powder pump embedded with an injection air tap, which comprises a powder pump body, a venturi inner pipe, a powder pipe and an injection air tap; the venturi inner tube penetrates through the center of the powder pump body, the powder pump body is embedded with a compressed air nozzle, one end of the compressed air nozzle is a compressed air input port, the interior of the compressed air nozzle is communicated with the interior of the venturi inner tube, the front end of the venturi inner tube is a powder suction inlet, the injection nozzle is embedded at the front end of the venturi inner tube, the powder tube is sleeved outside the other end of the venturi inner tube far away from the injection nozzle, an injection channel is formed in the venturi inner tube, and the injection channel is communicated with the interior of the powder tube. The powder sucking direction and the air flow of the jet nozzle are in the same direction, the conveying stability and the conveying continuity are high, the conveying efficiency is high, the uniformity of gas-solid mixing is high, and the gas-powder mixing performance is good.

Description

Venturi powder pump embedded with jet nozzle

Technical Field

The utility model relates to the technical field of pneumatic conveying ejectors, in particular to a venturi powder pump embedded with an ejection air tap.

Background

The pneumatic conveying sprayer is a power part of a loose material conveying system, and sucks loose materials by utilizing negative pressure, then mixes gas and solid in a material spraying pipeline, performs the steps of energy exchange, mixing, gas and solid concentration adjustment and the like, and finally conveys the loose materials to a specified position.

As shown in the attached figure 1, the pneumatic conveying sprayer is one of the common pneumatic conveying sprayers in the prior material conveying field, and has the structure that the included angle between a powder suction inlet 1 and an injection air nozzle 2 is 90 degrees, so that the material conveying stability and continuity are easily affected due to the fact that the angle between the powder suction direction and the injection air flow is vertical, and meanwhile, the uniformity of the mixing performance of the gas-solid ratio is difficult to improve.

Disclosure of Invention

The utility model aims to provide a venturi powder pump embedded with an injection air tap.

In order to achieve the above purpose, the present utility model provides the following technical solutions: a venturi powder pump embedded with an injection air tap comprises a powder pump body, a venturi inner pipe, a powder pipe and an injection air tap;

the venturi inner tube penetrates through the center of the powder pump body, a compressed air nozzle is embedded on the powder pump body, one end of the compressed air nozzle is a compressed air input port, the interior of the compressed air nozzle is communicated with the interior of the venturi inner tube, the front end of the venturi inner tube is a powder suction inlet, the spray nozzle is embedded at the front end of the venturi inner tube, the powder tube is sleeved outside the other end of the venturi inner tube, which is far away from the spray nozzle, a spray channel is formed in the venturi inner tube, and the spray channel is communicated with the interior of the powder tube.

In this embodiment, further, the spraying nozzle, the venturi tube and the powder tube are coaxially arranged.

In this embodiment, further, the powder suction port has n compressed air supply passages, n.gtoreq.1.

In this embodiment, further, the injection channel has a first section and a second section, the first section is an equal-diameter channel and is close to one side of the injection nozzle, and the second section is gradually increased in diameter from one side of the first section to the other side of the second section away from the injection nozzle.

The beneficial effects of the utility model are as follows:

the spray nozzle is embedded at the front end of the venturi tube, 1-8 compressed air supply channels which are symmetrically arranged along the axis of the spray nozzle are distributed at the front end of the venturi tube, compressed air is blown into the venturi tube by the spray nozzle, negative pressure is formed in the venturi tube, a venturi effect is formed, powder is sucked from the powder suction inlet and fully mixed with air to form a gas-powder mixture, the gas-powder mixture is sprayed out along the powder tube through the spray channel, the direction of powder suction and the flow of the spray nozzle are in the same direction, the conveying stability and the conveying continuity are high, the conveying efficiency is high, the uniformity of gas-solid mixing is high, and the gas-powder mixture performance is good.

Drawings

FIG. 1 is a schematic plan view of a prior art venturi powder pump;

FIG. 2 is a schematic illustration of a venturi powder pump with embedded jet nozzle according to the present utility model;

FIG. 3 is a schematic illustration of the venturi powder pump of the present utility model with an embedded jet nozzle in full section after removal of the powder tube;

fig. 4 is a left side view of fig. 3.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Examples of the embodiments are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements throughout or elements having like or similar functionality. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Referring to fig. 2 and 3, the present utility model provides a venturi powder pump with an embedded jet nozzle 6, which comprises a powder pump body 3, a venturi inner tube 4, a powder tube 5 and the jet nozzle 6.

The venturi tube 4 penetrates through the center of the powder pump body 3, the powder pump body 3 is embedded with a compressed air tap 7, one end of the compressed air tap 7 is a compressed air input port 70, and the inside of the compressed air tap 7 is communicated with the inside of the venturi tube 4.

As shown in fig. 3, the front end of the venturi tube 4 is a powder suction inlet, the injection nozzle 6 is embedded in the front end of the venturi tube 4, the powder tube 5 is sleeved outside the other end of the venturi tube 4 away from the injection nozzle 6, an injection channel 40 is formed in the venturi tube 4, the injection channel 40 is communicated with the interior of the powder tube 5, compressed air is input into the venturi tube 4 by the injection nozzle 6, negative pressure is formed in the venturi tube 4, and powder is mixed with air flow from the powder suction inlet and then is sprayed out of the air-powder mixture through the injection channel 40.

A more preferable embodiment is provided, further, the spraying nozzle 6, the venturi tube 4 and the powder tube 5 are coaxially arranged, that is, the direction of powder suction and the direction of spraying are same, and the stability, the continuity and the uniformity of mixing can be greatly improved.

Further, as shown in fig. 4, the powder suction inlet is n compressed air supply channels 8, n is equal to or greater than 1, further, the n compressed air supply channels 8 are symmetrically arranged about the axis of the venturi tube 4, and the compressed air supply channels 8 are symmetrically arranged about the axis, thereby improving the conveying efficiency.

In a further preferred embodiment, the injection channel 40 has a first section 400 and a second section 401, the first section 400 is an equal-diameter channel and is close to one side of the injection nozzle 6, the second section 401 is gradually changed from one side connected to the first section 400 to the other side far away from the injection nozzle 6, and after the venturi effect is formed in the venturi tube 4, the gas and the powder are fully mixed, the injection nozzle 6 passes through the first section 400 first, and the injection area of the gas-powder mixture is enlarged due to the enlarged diameter when passing through the second section 401.

The working principle of the utility model is as follows: the jet nozzle 6 blows compressed air into the venturi tube 4, negative pressure is formed in the venturi tube 4, a venturi effect is formed, powder is sucked from the powder suction inlet and fully mixed with air to form a gas-powder mixture, the gas-powder mixture is sprayed out along the powder tube 5 through the jet channel 40, the powder suction direction and the jet nozzle 6 are in the same direction, the conveying stability and the conveying continuity are high, the conveying efficiency is high, the uniformity of gas-solid mixing is high, and the gas-powder mixture performance is good.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a reference structure" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

Claims

1. The venturi powder pump embedded with the jet nozzle is characterized by comprising a powder pump body, a venturi inner tube, a powder tube and the jet nozzle;

2. The venturi powder pump with an embedded jet nozzle of claim 1, wherein the jet nozzle, the venturi tube and the powder tube are coaxially arranged.

3. The venturi powder pump with embedded jet nozzle as claimed in claim 1, wherein the powder suction inlet is n compressed air supply channels, n is greater than or equal to 1.

4. The venturi powder pump of claim 1, wherein the injection passage has a first section and a second section, the first section is a constant diameter passage and is adjacent to one side of the injection nozzle, and the second section is a gradual increase in diameter from one side of the first section to the other side of the second section away from the injection nozzle.