CN115025555B - A filter air path for dusty gas imitating the groove structure on the surface of plant leaves - Google Patents

Abstract

The invention discloses a dust-laden gas filtering gas path imitating the groove structure on the surface of plant blades, comprising: an integrally formed gas path pipeline and a collision filter plate; the gas path pipeline is an "N"-shaped pipeline composed of filter sections at both ends and a middle flow section; a plurality of the collision filter plates are interlaced and stacked and arranged in the filter section parallel to each other in the radial direction, and a gas channel with multiple bends is formed between the gas path pipeline; the two ends of the collision filter plate are collision surfaces, and arc-shaped bionic grooves with the same center as the collision filter plate are formed on the collision surface. , the cross-sectional shape of the bionic groove is an equilateral triangle; the two ends of the pipe connector are also installed with pipe connectors. The dust-laden gas filter gas path of the present invention can effectively remove particles of various particle sizes in the gas, reduce resistance pressure, and keep dust for a long time, and the particles on the surface of the filter structure can be removed by washing with water to realize repeated use.

Description

A filter air path for dusty gas imitating the groove structure on the surface of plant leaves

technical field

The invention belongs to the technical field of gas filtration, is mainly used for detecting dusty gas, and in particular relates to a dusty gas filtering gas path imitating the groove structure on the surface of plant leaves.

Background technique

In recent years, with the rapid development of the economy and the increase of energy consumption, the accompanying harmful gas pollution has become increasingly serious. The detection of harmful gases has become an important means to improve the regional environmental level, improve the quality of life, and protect human health. However, under dusty working conditions where dust is widely scattered, gas detection is often interfered by dust particles. With the extension of detection time, the detection accuracy of the instrument is greatly reduced, and the service life is also affected to varying degrees.

In the prior art, the air channel of the dust-laden gas detection device is an ordinary pipeline structure, which has no filtering effect on the particles in the dust-laden airflow, and a special filter structure needs to be added separately to filter the particles. However, the existing filter structure mainly uses the fine filter holes on the surface of the filter medium that are smaller than the diameter of the particles to intercept solid particles, and the gas can pass through the filter holes on the surface of the filter medium smoothly, so as to achieve the purpose of gas-solid separation. However, there are some problems with this filtering method: firstly, the filter medium has a large resistance to the air, and the resistance pressure drop is high; secondly, the filter medium has a limited dust holding capacity.

Therefore, it is necessary to design a new dust-laden gas filtering mechanism to solve the above-mentioned problems in the prior art.

By studying the surface of plant leaves in nature, the researchers found that the surface of some plant leaves has a strong ability to retain and adsorb particulate matter, which can effectively remove particulate matter in the air. After further systematic research, it was found that plant leaves generally absorb particulate matter in the air through three main methods of attachment, adhesion and absorption, thereby reducing the content of particulate matter in the atmosphere; among them, the "attachment" method refers to the fact that plant leaves rely on their surface microstructure to retain particulate matter in the atmosphere, and the rougher the surface of the leaf, the more conducive to the retention of particulate matter; inside the stomata. Through the observation of different leaf surfaces, it is found that the groove-like microstructure on the surface of plant leaves significantly improves the dust retention capacity of the blades, allowing more particles to stay in the grooves in the form of "attachment". The particles attached to the grooves are not easy to resuspend even under the action of wind. Therefore, the groove microstructure on the surface of plant leaves has great reference significance for the design of a new dusty gas filtration structure.

Contents of the invention

Aiming at the defects in the prior art, the present invention provides a dust-laden gas filter air path imitating the groove structure on the surface of plant leaves, which can effectively remove particles of various particle sizes in the gas, reduce the resistance pressure, and keep dust for a long time. In addition, the particles on the surface of the filter structure can be removed by washing with water to realize repeated use.

In conjunction with the accompanying drawings of the description, the technical solution of the present invention is as follows:

A dust-laden gas filter air path imitating the groove structure on the surface of plant leaves, comprising: an integrally formed air path pipe 2 and a collision filter plate 3;

The gas pipeline 2 is an "N"-shaped pipeline composed of filter sections at both ends and a circulation section in the middle;

A plurality of the collision filter plates 3 are stacked on top of each other and arranged radially parallel to each other in the filter section, and form a gas channel with multiple bends with the gas pipeline 2;

The two ends of the collision filter plate 3 are collision surfaces 301. The collision surface 301 is provided with an arc-shaped bionic groove 302 concentric with the collision filter plate 3. The cross-sectional shape of the bionic groove 302 is an equilateral triangle.

Further, the collision surface 301 is a concave conical surface concentric with the collision filter plate 3 .

Further, the cross-sectional shape of the bionic groove 302 is an equilateral triangle with a side length of 1.2 mm.

Further, three semicircular collision filter plates 3 are respectively arranged in the filter section of the gas pipeline 2, and the three semicircular collision filter plates 3 are stacked and interlaced at an angle.

Further, it also includes: a pipe connection head 1;

The connecting main body 102 of the pipe connecting head 1 is in the shape of a cone, the conical top of the connecting main body 102 is provided with a connecting nozzle 101 , and the conical bottom of the connecting main body 102 is provided with a connecting part for connecting with the gas pipeline 2 .

Furthermore, the pipeline connection head 1 is screwed to the air pipeline 2 .

Further, the dust-laden gas filtering air path is made of resin material.

Compared with prior art, the beneficial effect of the present invention is:

1. In the dust-laden gas filtration gas path of the present invention, multi-layer collision filter plates are arranged in the filter sections at both ends of the N-shaped gas path pipeline, which increases the turbulence of the dust-laden airflow inside the gas path channel, increases the collision between particles and the collision filter plate, effectively improves the filtering ability of the gas path channel for particles, and reduces the impact and damage of particles on gas detection instruments.

2. In the dust-laden gas filtration air path of the present invention, the bionic grooves set on the collision surfaces at both ends of the collision filter plate imitate the microstructure of the plant blade surface, which can retain more particles and reduce the secondary entrainment of particles by the air flow under the impact of the air flow.

3. The N-shaped air channel of the dust-laden gas filtering air channel of the present invention and the inner semi-cylindrical meandering air channel can significantly improve the filtration efficiency compared with the linear channel, and the middle section of the air channel pipeline is linear, which can reduce the resistance of the pipeline to the air flow. On the whole, the dust-laden gas filtering air channel of the present invention has higher filtration performance.

4. In the dust-laden gas filtering gas path of the present invention, collision surfaces are provided at both ends of the collision filter plate, so that particles can be intercepted on both sides of the collision filter plate, and the time for the gas path channel to filter the particles in the dust-laden airflow can be greatly extended.

5. In the dust-laden gas filtering air circuit of the present invention, both ends are equipped with detachable and small-caliber pipe joints, which can be connected with an external gas detection device through the pipe joints, or communicate with the dust-laden air generated by other devices, so that the dust-laden gas to be detected can smoothly enter the air pipe for filtration through the pipe joint. In addition, when it is necessary to connect with the dusty airflow in the air under dusty conditions, the pipe connector can also be removed from the end of the air pipeline, so that the airway pipeline can be directly connected with the dusty airflow under dusty conditions for filtration. It has a wide range of uses and strong practicability.

6. The dust-laden gas filter air path of the present invention can remove the particles retained on the collision surface of the collision filter plate by water washing or other methods, restore the dust retention ability of the collision surface, maintain the ability of the air path channel to intercept the particles in the dust-laden airflow, and realize repeated use without generating secondary pollutants.

Description of drawings

Fig. 1 is the structural representation of dust-laden gas filtering gas circuit of the present invention;

Fig. 2 is a schematic diagram of the external structure of the dust-laden gas filtering air path of the present invention;

Fig. 3 is a schematic diagram of the pipe joint structure of the dust-laden gas filtering air path of the present invention;

Fig. 4 is a cross-sectional view of the dust-laden gas filtering gas path according to the present invention;

Fig. 5 is the second cross-sectional view of the dust-laden gas filtering air path of the present invention;

Fig. 6 is an enlarged view of a part of the colliding filter plate in the air path for filtering dust-laden gas according to the present invention.

In the picture:

1-pipe connector, 2-gas pipeline, 3-collision filter plate;

101-connection mouth, 102-connection main body, 103-joint thread;

201-pipeline main body, 202-pipeline thread;

301-collision surface, 302-bionic groove.

Detailed ways

In order to clearly and completely describe the technical solution of the present invention and its specific working process, in conjunction with the accompanying drawings, the specific implementation of the present invention is as follows:

In the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection", "connection", "fixation" and other terms should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly defined. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention according to specific situations.

In the present invention, unless otherwise specified and limited, a first feature being "on" or "under" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediary. Moreover, "above", "above" and "above" the first feature on the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. "Below", "beneath" and "beneath" the first feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is less horizontally than the second feature.

The present invention discloses a dust-laden gas filtering gas path imitating the groove structure on the surface of plant blades. As shown in FIG. 1 , the dust-laden gas filtering gas path includes: a pipe connector 1, a gas path pipeline 2 and a collision filter plate 3; wherein, the two pipeline connectors 1 are detachably connected and installed at both ends of the gas path pipeline 2, and several collision filter plates 3 are integrally formed on the inner walls of the pipeline at both ends of the gas path pipeline 2.

As shown in Figure 2, the gas pipeline 2 is arranged in an "N" shape, that is, the N-shaped gas pipeline can be divided into three sections, which are the filter section 1 at one end, the flow section in the middle, and the filter section 2 at the other end, and there is a certain height difference between the outlet of the filter section 1 and the inlet of the filter section 2, and the middle flow section slopes obliquely downward from the filter section 1 to the filter section 2, which can increase the deposition of particles that are inclined downward due to the influence of gravity.

As shown in Figure 1, two pipeline connectors 1 with identical structures are respectively threadedly connected to both ends of the gas pipeline 2. Wherein, as shown in Figure 3, the pipeline connector 1 is composed of a connection nozzle 101, a connection body 102 and a joint thread 103. 02 and the joint thread 103 form a limiting ring.

As shown in Figures 4 and 5, the inner walls of both ends of the pipeline body 201 of the gas pipeline 2 are provided with pipeline threads 202, and the pipeline threads 202 are matched with the joint threads 103. During installation, the pipeline connector 1 is screwed and threaded with the pipeline threads 202 of the pipeline body 201 through the joint threads 103, and when rotated to the limit position, the annular end surface of the pipeline body 201 will abut against the limiting ring surface of the pipeline connector 1 to achieve reliable axial positioning.

As shown in FIG. 3 , in the pipeline connector 1 , the nozzle 101 has a small diameter and is used to connect with an external gas detection device, or communicate with the dust-laden airflow generated by other devices, so that the dust-laden gas to be detected can smoothly enter the gas pipeline 2 through the pipeline connector 1 for filtering. In addition, when it is necessary to connect with the dusty airflow in the air under dusty conditions, the pipe connector 1 can be removed from the end of the air pipeline 2, so that the airway pipeline 2 can directly communicate with the dusty airflow under dusty conditions for filtering.

As shown in Figure 1, the N-shaped air pipeline can be divided into three sections, namely, the filter section 1 at one end, the flow section in the middle, and the filter section 2 at the other end. The collision filter plates are all arranged on the inner sidewalls of the filter section 1 and the filter section 2, so as to effectively filter the dust-laden gas inside.

As shown in Fig. 1, Fig. 4 and Fig. 5, the collision filter plates 3 are integrally formed and radially parallel to the inner wall of the gas pipeline 2, and the collision filter plates 3 in the same filter section are arranged parallel to each other. Of course, according to the actual needs of the design, they can also be arranged at a certain angle to each other to meet the requirements of the filtering effect.

The collision filter plates 3 have a semicircular structure, and the collision filter plates 3 in the same filter section are stacked alternately, so that a semicircular gas channel is formed at the corresponding position of the gas pipeline 2 where the collision filter plates 3 are located, for gas circulation, and the collision filter plates 3 in the same filter section are stacked on each other in the axial direction to form a filter surface that can cover the entire cross-section of the gas pipeline 2, so that all dusty gases passing through the filter section can be effectively filtered, avoiding the situation of directly passing through. For example:

In this embodiment, three collision filter plates 3 are respectively arranged in the two filter sections, as shown in Figure 1, filter section one on the left side in the figure: the collision filter plate 3 of the first layer is a 180° semicircle collision surface vertically arranged on the left side, the collision filter plate 3 of the second layer is a 180° semicircle collision surface vertically arranged on the right side, and the collision filter plate 3 of the third layer is a 180° semicircle collision surface arranged horizontally on the upper side; ° semicircular collision surface, the collision filter plate 3 of the second layer is a 180 ° semicircular collision surface vertically arranged on the left side, and the collision filter plate 3 of the third layer is a 180 ° semicircular collision surface arranged horizontally on the right side. It can be seen that the collision filter plate 3 in the filter section 1 and the filter section 2 is in a complementary relationship. After the dust-containing gas enters through the left end of the gas pipeline 2, the dust in the airflow passes through the semicircular collision filter plate 3 in turn. The N-shaped pipe and the internal filtration flow pipe can significantly improve the filtration efficiency compared with the straight pipe due to the increased meandering, and the middle section of the air pipe 2 is straight, which can reduce the resistance of the pipe to the airflow.

As shown in Figures 1 and 6, the collision filter plate 3 is a semi-circular plate structure, and is integrally formed on the inner side wall of the gas pipeline 2 in the radial direction. The two side end faces of the collision filter plate 3 are symmetrically arranged collision surfaces 301. .2mm. When the dust-containing gas collides with the collision surface 301 of the collision filter plate 3 , the bionic groove 302 can absorb and retain particulate matter, and at the same time can reduce the secondary entrainment of the particulate matter by the airflow.

In addition, both sides of the collision filter plate 3 are provided with collision surfaces 301, so both sides of the collision filter plate 3 can trap particles, which can greatly prolong the time for the air channel to filter the particles in the dust-laden airflow.

The dust-laden gas filter gas path imitating the groove structure on the surface of the plant leaf described in the present invention is made of resin material, and the two halves of the dust-laden gas filter gas path are printed axially symmetrically by 3D printing technology, as shown in Fig. 4 and Fig. 5 , and then combined and connected.

The working principle and working process of the dust-laden gas filter gas path of the present invention are as follows:

When performing gas detection under dusty conditions, connect the pipe connector 1 at one end of the dust-laden gas filter gas path to the gas detection instrument, and connect the other end to the gas to be detected through the pipe connector 1 or directly place the gas pipe 2 in the detection area. The dust-laden gas to be detected enters the gas pipe 2 under the suction of the air pump of the gas detector. Objects continue to move along the original direction of motion due to their own inertia and collide with the collision surface 301 of the collision filter plate 3 to be trapped. After the collision of 6 interlaced collision surfaces in the filter section 1 and filter section 2 inside the gas pipeline 2, most of the particles in the dusty gas can be removed, and the gas can smoothly enter the gas detection instrument for detection.

Because the air channel of the existing dust-laden gas detection device is an ordinary pipeline structure, there is no filtering effect on the particles in the dust-laden airflow, and a special filter structure is required to filter the particles. The filter structure in the dust-laden gas filter air channel of the present invention is different from the conventional membrane filter structure. The dust-laden gas filter air channel of the present invention uses the principle of inertia to remove particles. The resistance pressure to the air flow is reduced, the energy consumption is low, and it is not easy to be blocked. It can hold dust for a long time and has a high dust holding capacity. Secondary entrainment, after the dust retention is completed, the dust-laden gas filter gas path of the present invention can restore the dust retention capacity of the collision surface through water washing, realize repeated use, and will not generate secondary pollutants.

Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and those skilled in the art can change, modify, replace and modify the above embodiments within the scope of the present invention.

The specific embodiments of the present invention described above do not constitute a limitation to the protection scope of the present invention. Any other corresponding changes and modifications made according to the technical concept of the present invention shall be included in the protection scope of the claims of the present invention.

Claims (5)

1. The utility model provides a imitative plant blade surface groove structure's dirty gas filtration gas circuit which characterized in that:

comprising the following steps: an integrally formed gas path pipeline (2) and a collision filter plate (3);

the gas path pipeline (2) is an N-shaped pipeline consisting of a filtering section at two ends and a circulating section in the middle;

the collision filter plates (3) are mutually staggered and overlapped, are arranged in the filter section in parallel along the radial direction, and form a gas channel with a plurality of bends with the gas path pipeline (2);

the two end surfaces of the collision filter plate (3) are collision surfaces (301), an arc bionic groove (302) concentric with the collision filter plate (3) is formed in the collision surfaces (301), and the cross section of the bionic groove (302) is in the shape of an equilateral triangle;

the collision surface (301) is an inward concave conical surface concentric with the collision filter plate (3);

the cross section of the bionic groove (302) is an equilateral triangle with a side length of 1.2mm.

2. The dust-laden gas filtration circuit of a plant leaf surface groove structure of claim 1, wherein:

three semicircular collision filter plates (3) are respectively arranged in the filter sections of the gas circuit pipeline (2), and the three semicircular collision filter plates (3) are arranged in an angle staggered and overlapped mode.

3. The dust-laden gas filtration circuit of a plant leaf surface groove structure of claim 1, wherein:

further comprises: a pipe joint (1);

the connecting main body (102) of the pipeline connector (1) is in a cone shape, a connecting nozzle (101) is arranged at the cone top of the connecting main body (102), and a connecting part used for being connected with the gas pipeline (2) is arranged at the cone bottom of the connecting main body (102).

4. A dust-laden gas filtration circuit of a plant leaf surface-like groove structure as claimed in claim 3, wherein:

the pipeline connector (1) is in threaded connection with the gas pipeline (2).

5. A dust laden gas filtration circuit of a plant leaf surface groove structure as claimed in any one of claims 1 to 4, wherein:

the dust-containing gas filtering gas circuit is made of resin.