Anti-sticking pipeline structure

Abstract

The utility model discloses an anti-sticking pipeline structure which comprises a metal pipe and a vent pipe detachably connected to the bottom end of the metal pipe through a connecting piece, an annular air cavity is formed in the side wall of the lower portion of the metal pipe and located at the top end of the connecting piece, and a plurality of vent nozzles are connected to the outer side of the annular air cavity. The connecting piece is provided with a plurality of first vent holes which are communicated with the annular air cavity and penetrate through the annular air cavity, the top wall of the vent pipe is provided with a plurality of air chambers extending in the length direction of the pipe body, and the air chambers are located between the outer side wall and the inner side wall of the vent pipe and communicated with the first vent holes. According to the pipeline structure, the ventilation pipe, the air chamber, the annular air cavity and the ventilation nozzle are arranged, carried air is sequentially conveyed into the annular air cavity, the first ventilation hole and the air chamber through the ventilation nozzle, the air entering the air chamber is evenly diffused out from the inner wall and the outer wall of the ventilation pipe, and the purpose of full-coverage cleaning of materials attached to the inner wall and the outer wall of the pipe body is achieved; and the cleaning efficiency and effect of materials adhered to the inner and outer walls of the pipe body are improved.

Description

Technical Field

[0001] This utility model relates to the field of pipeline cleaning equipment technology, and in particular to an anti-sticking pipeline structure. Background Technology

[0002] In industrial production, material conveying pipelines are widely used for transporting powders, granules, and other materials, such as in the cement, grain, and chemical raw material industries. During material conveying, due to factors such as particle size, hygroscopicity, and the sealing performance of the pipeline or equipment, materials easily adhere to the inner and outer walls of the pipeline, causing severe powder buildup. The continuous accumulation of material adhering to the pipe walls not only leads to pipeline blockage but also, when expired materials fall off during packaging, causes a series of problems such as poor packaging precision and contamination of the packaging bag surface.

[0003] To address the problem of powder adhering to pipe walls, patent application CN201920041653.2 discloses a rapid cleaning device for powder material conveying pipelines, relating to the technical field of pipeline cleaning equipment. The device includes an air supply pipeline and material cleaning units. The air supply pipeline is arranged along the central axis of the material conveying pipeline, and multiple material cleaning units are installed on it. Each material cleaning unit includes an inlet pipeline, a pulse control valve, an outlet pipeline, and a cleaning nozzle. The cleaning nozzle is equipped with a nozzle located inside the material conveying pipeline, and the angle between the outlet direction of the nozzle and the material flow direction of the material conveying pipeline is acute. The inlet end of the air supply pipeline is connected to a gas compression device. An inlet valve and a filter pressure reducing valve are sequentially installed near the inlet end of the air supply pipeline. A pressure monitoring device and a safety valve are also installed on the air supply pipeline.

[0004] The aforementioned cleaning device uses pulsed gas to purge the inner wall of the pipe, solving the problem of cleaning the inner wall of the pipe. However, this device can only clean the inner wall of the pipe and cannot simultaneously solve the problem of materials adhering to the outer wall of the pipe. In addition, the cleaning nozzle of this device is fixed in position, resulting in poor cleaning effect in the bends and dead corners of the inner wall of the pipe, and it cannot effectively and completely remove the materials adhering to the inner and outer walls of the pipe.

[0005] Therefore, there is an urgent need to provide a structure that can simultaneously clean the inner and outer walls of pipes, effectively solving the problem of materials adhering to the inner and outer walls of pipes. Utility Model Content

[0006] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a simple and easy-to-install anti-stick pipe structure that can completely clean the materials adhering to the inner and outer walls of the pipe.

[0007] The technical solution adopted by this utility model to solve its technical problem is: an anti-sticking pipe structure, including a metal pipe and a vent pipe detachably connected to the bottom end of the metal pipe by a connector. The lower side wall of the metal pipe and the top end of the connector are provided with an annular air cavity. Multiple vents are connected to the outside of the annular air cavity. The connector is provided with multiple first vent holes that communicate with and penetrate the annular air cavity. The top wall of the vent pipe is provided with multiple air chambers extending along the length of the pipe body. The air chambers are located between the outer side wall and the inner side wall of the vent pipe and are connected to the first vent holes.

[0008] Furthermore, the connector includes a first flange and a second flange, which are respectively installed at the bottom of the metal pipe and the top of the vent pipe.

[0009] Furthermore, the first flange has a plurality of first vent holes circumferentially formed along its upper edge, and the inner diameter of the second flange is larger than the inner diameter of the first flange.

[0010] Furthermore, a first sealing gasket is provided between the first flange and the second flange, and a second vent hole is provided through the first sealing gasket along the annular edge, and the second vent hole is connected to the first vent hole and the air chamber.

[0011] Furthermore, an outer sleeve is detachably connected to the outside of the vent pipe.

[0012] Furthermore, the top of the outer sleeve is provided with a third flange, and its top is detachably connected to the top of the vent pipe through the second flange and the third flange.

[0013] Furthermore, a second sealing gasket is provided between the second flange and the third flange.

[0014] Furthermore, both the top of the metal tube and the bottom of the outer tube are equipped with connecting flanges.

[0015] Furthermore, the bottom ends of the plurality of air chambers do not penetrate the bottom of the vent pipe, and they are distributed in a ring shape between the outer and inner walls of the vent pipe.

[0016] Furthermore, the metal tube and the vent tube are internally connected.

[0017] The beneficial effects of this utility model's anti-sticking pipe structure are as follows:

[0018] This utility model has a simple structure and is easy to use. It is equipped with a vent pipe, an air chamber, an annular air cavity connected to the air chamber through a first vent hole, and a vent nozzle. The vent nozzle is used to sequentially deliver the gas to the annular air cavity, the first vent hole, and the air chamber. The gas entering the air chamber diffuses evenly from the inner and outer walls of the vent pipe, which can clean the material adhering to the inner wall of the pipe as well as the material adhering to the outer wall of the pipe. This achieves the purpose of full coverage cleaning of the material adhering to the inner and outer walls of the pipe, greatly improving the cleaning efficiency and effect of the material adhering to the inner and outer walls of the pipe. It realizes automatic cleaning of the material conveying pipeline, ensures the smooth and clean flow of the pipeline, improves the conveying efficiency, and reduces the conveying cost. Attached Figure Description

[0019] Figure 1 —This is a three-dimensional structural diagram of an anti-adhesive pipe structure according to the present invention;

[0020] Figure 2 -for Figure 1 Longitudinal sectional view;

[0021] Figure 3 -for Figure 2 A front view of the enlarged schematic diagram at point A in the middle;

[0022] Figure 4 -for Figure 1 The front view;

[0023] Figure 5 —A three-dimensional structural diagram of the ventilator;

[0024] Figure 6 -for Figure 5 Top view.

[0025] The above figures are labeled as follows: 1-metal pipe, 2-vent pipe, 3-first flange, 4-second flange, 5-first sealing gasket, 6-annular air chamber, 7-vent nozzle, 8-first vent hole, 9-second vent hole, 10-air chamber, 11-outer sleeve, 12-third flange, 13-second sealing gasket, 14-connecting flange. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings and embodiments, but these specific embodiments do not limit the scope of protection of the present invention in any way.

[0027] Example 1

[0028] See Figure 1-6An anti-sticking pipe structure includes a metal pipe 1 and a vent pipe 2 detachably connected to the bottom end of the metal pipe 1 via a connector. The metal pipe 1 and the vent pipe 2 have the same inner diameter and are internally connected to each other for easy material transport. The vent pipe 2 can be made of a non-metallic polymer microporous tube or other materials, as long as it meets the requirement that the vent pipe 2 has through-holes with an inner diameter larger than the particle size of the material (not shown in the figure).

[0029] The connector includes a first flange 3 and a second flange 4 located below the first flange 3. The first flange 3 and the second flange 4 are respectively installed at the bottom of the metal pipe 1 and the top of the vent pipe 2. The metal pipe 1 and the vent pipe 2 are connected by bolt holes on the first flange 3 and the second flange 4 and bolts. A first sealing gasket 5 is provided between the first flange 3 and the second flange 4.

[0030] The lower sidewall of the metal pipe 1 and the top of the first flange 3 are provided with an annular air chamber 6. Multiple vents 8 are connected to the outside of the annular air chamber 6 for introducing pressurized gas from the outside into the annular air chamber 6.

[0031] The first flange 3 has a plurality of through-holes 9 evenly distributed along its annular edge, and the inner diameter of each hole is smaller than that of the second flange 4. The first vent holes 9 are connected to the annular air chamber 6. The first sealing gasket 5 has a plurality of through-holes 10 evenly distributed along its annular edge, and the second vent holes 10 are connected to the first vent holes 9.

[0032] The top wall of the vent pipe 2 has multiple air chambers 10 extending along the length of the pipe. The bottom of each air chamber 10 does not penetrate the bottom of the vent pipe 2 and is cylindrical, cuboid, or other structure. The multiple air chambers 10 are distributed in a ring between the outer and inner walls of the vent pipe 2 and are connected to the second vent hole 10 and the first vent hole 9 in sequence. This allows the pressurized gas input from the annular air cavity 6 to be transported downward through the first vent hole 9, the second vent hole 10, and the air chambers 10 to the air chambers 10 located between the outer and inner walls of the vent pipe 2.

[0033] This invention comprises a vent pipe 2, an air chamber 10, and a first vent hole 9, an annular air cavity 6, and a vent nozzle 8 connected sequentially to the air chamber 10. Pressurized gas is sequentially delivered to the annular air cavity 6, the first vent hole 9, and the air chamber 10 via the vent nozzle 8. Because the vent pipe 2 has a through-hole structure, the gas entering the air chamber 10 exits through the vent hole and diffuses evenly to the inner and outer walls of the vent pipe 2. This achieves cleaning of materials adhering to both the inner and outer walls of the pipe, thus achieving full coverage cleaning of materials adhering to both the inner and outer walls. This significantly improves the cleaning efficiency and effectiveness of materials adhering to the inner and outer walls of the pipe, enabling automatic cleaning of the material conveying pipeline, ensuring pipeline smoothness and cleanliness, improving conveying efficiency, and reducing conveying costs.

[0034] Furthermore, the pipeline structure of this application can achieve simultaneous cleaning of the inner and outer walls of the pipe using only one vent 8. Compared with the structure that requires vents on both the outside and inside of the pipe to achieve cleaning of the inner and outer walls, this application can integrate the vent 8 into the main structure of the pipeline structure, so that all the components required for gas transportation are integrated into one unit. Its structure is simpler, easier to install, requires fewer equipment parts, and has lower maintenance costs, which greatly improves the cleaning effect and cleaning cost of materials adhering to the inner and outer walls of the pipe.

[0035] To further improve the sealing performance at the connection between the metal pipe 1 and the vent pipe 2, a first sealing gasket 5 is provided between the first flange 3 and the second flange 4, reducing the phenomenon of material adhering to the outer wall of the pipe. In order to ensure that the setting of the first sealing gasket 5 does not affect the gas delivery from the first vent hole 9 to the gas chamber 10, a second vent hole 10 is also provided on the first sealing gasket 5, so that the gas can smoothly enter the gas chamber 10 from the first vent hole 9 and the second vent hole 10 in sequence, realizing the cleaning of material adhering to the inner and outer walls of the pipe.

[0036] When considering that dust exposed from the vent pipe 2 may pollute the surrounding environment, an outer sleeve 11 can be detachably connected to the outside of the vent pipe 2. Specifically, the detachable connection structure is as follows: the top of the outer sleeve 11 is provided with a third flange 12, and its top is detachably connected to the top of the vent pipe 2 through bolt holes on the second flange 4 and the third flange 12, as well as bolts. When it is not necessary to consider that dust exposed from the vent pipe 2 may pollute the surrounding environment, the outer sleeve 11 can be omitted.

[0037] To improve the airtightness of the connection between the outer sleeve 11 and the vent pipe 2, a second sealing gasket 13 is provided between the second flange 4 and the third flange 12.

[0038] Both the top of the metal pipe 1 and the bottom of the outer casing 11 are equipped with connecting flanges 14 for connecting the pipe structure to other equipment.

[0039] The working principle and usage method of the anti-sticking pipe structure of this utility model are as follows:

[0040] When this utility model is in operation, the vent 8 is connected to an external air supply device. Pressurized gas is introduced into the annular air chamber 6 through the vent 8. The pressurized gas introduced into the annular air chamber 6 is sequentially transported downwards into the air chamber 10 through the first vent hole 9 and the second vent hole 10. The gas entering the air chamber 10 passes through the vent hole of the vent pipe 2 and diffuses evenly outwards to the inner and outer walls of the vent pipe 2. At the same time, it achieves full coverage cleaning of the material adhering to the inner and outer walls of the pipe, greatly improving the cleaning efficiency and effect of the material adhering to the inner and outer walls of the pipe.

[0041] It should be noted that this article uses terms such as "first" and "second" to describe various components, but these components should not be limited by these terms. These terms are only used to distinguish one component from another.

[0042] The terms "up," "down," "left," "right," "front," "back," "vertical," "inner," and "outer" used in this document to describe orientation or position are for ease of explanation and are based on the orientation or positional relationships shown in the accompanying drawings. In actual devices, these orientations may vary depending on the arrangement of the devices. They are only used to facilitate the description of this utility model and to simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0043] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A stick resistant tubing structure, characterized by, The device includes a metal tube and a vent pipe detachably connected to the bottom end of the metal tube via a connector. The lower side wall of the metal tube and the top end of the connector have an annular air cavity. Multiple vents are connected to the outside of the annular air cavity. The connector has multiple first vent holes that communicate with and penetrate the annular air cavity. The top wall of the vent pipe has multiple air chambers extending along the length of the tube. The air chambers are located between the outer and inner side walls of the vent pipe and communicate with the first vent holes.

2. A stick resistant tubing structure as defined in claim 1, wherein, The connector includes a first flange and a second flange, which are respectively installed at the bottom of the metal pipe and the top of the vent pipe.

3. A stick resistant tubing structure as defined in claim 2, wherein, The first flange has multiple first vent holes circumferentially formed along its upper edge, and the inner diameter of the second flange is larger than that of the first flange.

4. A stick resistant tubing structure as defined in claim 2, wherein, A first sealing gasket is provided between the first flange and the second flange. A second vent hole is provided through the first sealing gasket along the annular edge. The second vent hole is connected to the first vent hole and the air chamber.

5. A stick resistant tubing structure as defined in claim 2, wherein, The outer side of the vent tube is detachably connected to an outer sleeve.

6. A stick resistant tubing structure as defined in claim 5, wherein, The top of the outer sleeve is provided with a third flange, and its top is detachably connected to the top of the vent pipe through a second flange and a third flange.

7. A stick resistant tubing structure as defined in claim 6, wherein, A second sealing gasket is provided between the second flange and the third flange.

8. A stick resistant tubing structure as defined in claim 5, wherein, Both the top of the metal tube and the bottom of the outer tube are fitted with connecting flanges.

9. A stick resistant tubing structure as defined in claim 1, wherein, The bottom ends of the plurality of air chambers do not penetrate the bottom of the vent pipe, and they are distributed in a ring between the outer and inner walls of the vent pipe.

10. A stick resistant pipe construction according to any one of claims 1 to 9, wherein The metal tube and the vent tube are internally connected.

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