CN113648899A

CN113648899A - Fountain aerosol mixing device

Info

Publication number: CN113648899A
Application number: CN202110749416.3A
Authority: CN
Inventors: 陈布赫; 张凤英
Original assignee: Beijing Jiuzhou Pengyue Technology Co ltd
Current assignee: Beijing Jiuzhou Pengyue Technology Co ltd
Priority date: 2021-07-02
Filing date: 2021-07-02
Publication date: 2021-11-16
Anticipated expiration: 2041-07-02
Also published as: CN113648899B

Abstract

The embodiment of the invention provides a spraying type aerosol blending device, which comprises a blending tank and a spraying assembly, wherein the spraying assembly is arranged on the blending tank; the blending tank is a cylindrical hollow container, the upper side of the top end plane of the blending tank is vertically provided with an upper aerosol inlet, and the lower side of the top end plane of the blending tank is provided with a lower aerosol inlet; the lower part of the blending tank is also provided with an aerosol outlet; the spraying component comprises a spraying pipe and a connecting end vertically connected above the middle part of the top end of the spraying pipe; the spray pipe is of a hollow structure with an opening at the top, the connecting end is of a hollow cylinder structure, and the spray pipe is communicated with the connecting end through the opening at the top; a plurality of spraying holes are formed in the bottom end face of the spraying pipe; the spraying component is rotationally connected with the lower aerosol inlet through the connecting end. Through this scheme, the standard aerosol that the entrance came in and clean gaseous from a plurality of spray holes discharges to spray assembly can rotate, has guaranteed to the at utmost that the medium messenger in the blending jar can the diffusion even.

Description

Fountain aerosol mixing device

Technical Field

The invention relates to the technical field of aerosol preparation, in particular to a spraying type aerosol mixing device.

Background

In a traditional aerosol generating device, standard aerosol is sprayed out through a negative pressure nozzle after standard substances and purified water are mixed, and the sprayed standard aerosol is mixed with filtered clean gas and heated (the clean gas has the function of diluting the sprayed aerosol and adjusting the aerosol concentration), and then finished aerosol can be discharged. Because a special mixing device is not provided, the standard aerosol and the filtered clean gas are directly mixed in a thinner pipeline and then discharged, so that the dispersion is not uniform (the mixture is not uniform), the finished aerosol which meets the requirement cannot be obtained, and the single-channel and multi-channel dust detection instrument matched with the aerosol generating equipment is adversely affected. To solve this problem, improved aerosol generating devices are provided with a mixing vessel having a cross-section that is much larger than the original mixing tube diameter, so that the uniformity of mixing of the aerosol is improved to some extent.

In the process of implementing the invention, the inventor finds that at least the following problems exist in the prior art:

even if the mixing container is adopted, when the standard aerosol and the clean gas directly enter the container, the two media can not be uniformly mixed, the concentration of the finished aerosol can not be guaranteed, and a better effect is difficult to obtain. Therefore, how to make the standard aerosol and the clean gas spread uniformly and ensure the stability and consistency of the concentration of the finished aerosol is a problem to be solved.

Disclosure of Invention

The embodiment of the invention provides a spraying type aerosol blending device, which aims to solve the problem of uneven mixing of standard aerosol and clean gas in the prior art.

To achieve the above object, an embodiment of the present invention provides a spray-type aerosol blending device, including: the mixing tank and the spraying assembly are arranged in the mixing tank; the mixing tank is a cylindrical hollow container; an upper aerosol inlet is vertically arranged on the upper side of the middle part of the top end plane of the blending tank; a lower aerosol inlet is vertically arranged on the lower side of the middle part of the top end plane of the blending tank; the upper aerosol inlet and the lower aerosol inlet are communicated with each other; the lower part of the blending tank is also provided with an aerosol outlet; the spraying assembly comprises a spraying pipe and a connecting end vertically connected above the middle part of the top end of the spraying pipe; the spray pipe is of a hollow structure with a top opening, the connecting end is of a hollow cylinder structure, and the spray pipe is communicated with the connecting end through the top opening; a plurality of spraying holes are formed in the bottom end face of the spraying pipe; the spraying assembly is rotationally connected with the lower aerosol inlet through the connecting end; the material of mixing jar with spray assembly is the metal.

Preferably, a bearing is further arranged between the connecting end and the lower aerosol inlet.

Preferably, the longitudinal section of the middle part of the spray pipe is a hollow rectangle; the bottom end face of the spray pipe is an inclined plane with a low middle part and high two sides.

Preferably, the spray pipes comprise a left spray pipe and a right spray pipe; the left spray pipe comprises a front half area of the left spray pipe and a rear half area of the left spray pipe, and the right spray pipe comprises a front half area of the right spray pipe and a rear half area of the right spray pipe; the front half area of the left spray pipe, the rear half area of the left spray pipe, the front half area of the right spray pipe and the rear half area of the right spray pipe are sequentially distributed along the axis of the connecting end as the central circumferential direction; the number of the spray holes in the front half area of the left spray pipe is less than that of the spray holes in the rear half area of the left spray pipe; the number of the spraying holes in the front half area of the right spraying pipe is less than that of the spraying holes in the rear half area of the right spraying pipe; a ribbed plate is further arranged in the spray pipe, and is a triangular prism transversely laid on the inner side of the bottom end face of the spray pipe; the rib plates comprise a left rib plate and a right rib plate; the left rib plate is arranged in the front half area of the left spraying pipe; the right rib plate is arranged in the front half area of the right spray pipe.

Preferably, the number of the spraying holes in the front half area of the left spraying pipe is 21; the number of the spraying holes in the front half area of the right spraying pipe is 21; the number of the spraying holes in the rear half area of the left spraying pipe is 37; the number of the spray holes in the rear half area of the right spray pipe is 37.

Preferably, the number of the aerosol outlets is multiple; a plurality of the aerosol export with the axis of mixing jar is central circumference equipartition, and every the equal circumference of aerosol export arranges in on the lower part lateral wall of mixing jar.

Preferably, the cross section of the blending tank is circular or regular polygon.

Preferably, a hemispherical bump is arranged on the bottom end face of the spray pipe; the spraying holes are formed in the protruding blocks.

Preferably, the projection is rotatably connected with the bottom end face of the spray pipe.

The technical scheme has the following beneficial effects:

according to the scheme, the standard aerosol and the clean gas entering from the upper aerosol inlet enter the spraying assembly through the lower aerosol inlet, are premixed in the spraying pipe, are discharged from the spraying holes with small pore diameters in multiple directions, are dispersed into the mixing tank and are mixed again, so that the two media are uniformly mixed, and the consistency of the discharged finished aerosol is ensured. Further, because the hole that sprays on the shower adopts asymmetric design in this application, at the in-process that sprays, because the difference of flow leads to its lateral wall atress different, and then need not additionally to dispose drive arrangement and can rotate voluntarily to make the diffusion of the medium in the mixing jar more even, mix the effect better.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic overall structure diagram of a spray type aerosol blending device according to an embodiment of the present invention;

FIG. 2 is a view along the line C-C in FIG. 1 (i.e., a schematic view of the internal structure of the shower);

FIG. 3 is a view from A-A of FIG. 1 (i.e., a schematic view of the shower assembly assembled with the attachment end);

reference numerals: 11. a connecting end; 12. a shower pipe; 121. a left side shower pipe; 1211. the front half area of the left spray pipe; 1212. the rear half area of the left spray pipe; 122. a right side shower pipe; 1221. the front half area of the right spray pipe; 1222. the rear half area of the right spray pipe; 13. spraying holes; 14. a bump; 15. a rib plate; 151. a left rib plate; 152. a right rib plate; 20. a blending tank; 21. an upper aerosol inlet; 22. an aerosol outlet; 23. a lower aerosol inlet; 30. and a bearing.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, an embodiment of the present invention provides a spray-type aerosol blending device, including a blending tank 20 and a spray assembly disposed inside the blending tank 20; the blending tank 20 is a cylindrical hollow container; an upper aerosol inlet 21 is vertically arranged on the upper side of the middle part of the top end plane of the blending tank 20; a lower aerosol inlet 23 is vertically arranged at the lower side of the middle part of the top end plane of the blending tank 20; the upper aerosol inlet 21 and the lower aerosol inlet 23 are communicated with each other; the lower part of the blending tank 20 is also provided with an aerosol outlet 22; the spraying assembly comprises a spraying pipe 12 and a connecting end 11 vertically connected to the upper part of the middle part of the top end of the spraying pipe 12; the spray pipe 12 is of a hollow structure with an opening at the top, the connecting end 11 is of a hollow cylinder structure, and the spray pipe 12 is communicated with the connecting end 11 through the opening at the top; a plurality of spraying holes 13 are formed in the bottom end face of the spraying pipe 12; the spraying assembly is rotationally connected with the lower aerosol inlet 23 through the connecting end 11; the material of blending tank 20 and spray assembly is metal.

In order to better mix standard aerosol and clean gas, the spray pipe 12 is arranged inside the blending tank 20, and the spray pipe 12 is provided with the plurality of spray holes 13, so that the standard aerosol and the clean gas can be premixed in the spray pipe after entering the spray assembly, and then are sprayed out from the spray holes with small pore diameters along a plurality of directions under the action of pipeline pressure, and are dispersed into the blending tank for remixing. This way, the two media are mixed more evenly, so that the consistency of the discharged finished aerosol is ensured. For more uniform mixing, the spray assembly can be made to rotate, and the connecting end 11 and the lower aerosol inlet 23 are both cylindrical, so that shaft hole matching is achieved. In this embodiment, the inner diameter of the connecting end 11 is larger than the outer diameter of the lower aerosol inlet 23, and the connecting end 11 is sleeved outside the lower aerosol inlet 23.

Preferably, a bearing 30 is further provided between the connection end 12 and the lower aerosol inlet 23.

The connecting end 11 may be directly fitted into the lower aerosol inlet 23 to form a shaft hole, or a shaft sleeve or a bearing may be provided therebetween. In the present embodiment, as shown in fig. 3, in order to make the rotation more flexible, a bearing 30 is added at the rotation connection, the aerosol inlet 23 is connected to the inner ring of the bearing 30, and the connection end 12 is connected to the outer ring of the bearing 30. The shaft hole fit during installation can be secured in a variety of ways, such as by interference fit, or by providing a circlip on the shaft or hole.

Preferably, the longitudinal section of the middle part of the spray pipe 12 is a hollow rectangle; the bottom end face of the spray pipe 12 is an inclined plane with a low middle part and high two sides.

As shown in fig. 1, the bottom end surface of the shower pipe 12 is formed by two inclined surfaces gradually rising from the center to both sides, so that the shower holes 13 formed in the bottom end surface are arranged at a certain inclination angle, and the spraying of the medium is more uniform during the operation. In addition, the cross-sectional dimension of the middle portion of the shower pipe 12 is the largest, and the cross-sectional dimensions of both ends are gradually reduced, that is, the top end surface of the shower pipe 12 is also an inclined surface with a low middle and high both sides, and both side surfaces of the shower pipe 12 are also configured with a wide middle and narrow both ends, because the medium flows from the middle to both ends, and the flow rate in the pipe is reduced toward both ends, so that the pipe diameter of the middle portion needs to be increased.

Preferably, the showers 12 include a left shower 121 and a right shower 122; the left shower 121 comprises a left shower front half 1211 and a left shower rear half 1212, and the right shower 122 comprises a right shower front half 1221 and a right shower rear half 1222; the left side spray pipe front half area 1211, the left side spray pipe rear half area 1212, the right side spray pipe front half area 1221 and the right side spray pipe rear half area 1222 are circumferentially distributed by taking the axis of the connecting end 11 as the center in sequence; the number of the spray holes in the front half 1211 of the left spray pipe is less than that of the spray holes in the rear half 1212 of the left spray pipe; the number of the spray holes in the front half 1221 of the right spray pipe is less than that in the rear half 1222 of the right spray pipe; a rib plate 15 is further arranged in the spray pipe 12, and the rib plate 15 is a triangular prism transversely laid on the inner side of the bottom end face of the spray pipe 12; the ribs 15 include a left rib 151 and a right rib 152; the left rib plate 151 is arranged in the front half 1211 of the left spray pipe; the right rib 152 is disposed in the right shower front half 1221.

As shown in fig. 2, in order to realize the spontaneous rotation of the spray assembly without an additional driving device, the number of the spray holes 13 can be designed asymmetrically; two rib plates (15) are arranged on the ground at the inner side of the spray pipe 12, and the rib plates (15) are transversely arranged long-strip-shaped cylinders with triangular sections (refer to fig. 3). The shower pipe 12 can be divided into four parts, namely a left shower pipe front half area 1211, a left shower pipe rear half area 1212, a right shower pipe front half area 1221 and a right shower pipe rear half area 1222, which are identical in shape or mirror images of each other (without considering the spray holes 13 on the respective bottom end surfaces), and the area of the bottom end surfaces of the four parts is also identical, and the rib plate (15) is also divided into two parts, namely a left rib plate 151 and a right rib plate 152, wherein the left rib plate 151 is arranged in the left shower pipe front half area 1211, and the right rib plate 152 is arranged in the right shower pipe front half area 1221. On the bottom end surfaces of the four parts, different numbers of spray holes 13 are arranged, so that the number of the spray holes in the front half 1211 of the left spray pipe is less than that of the spray holes in the rear half 1212 of the left spray pipe, and the number of the spray holes in the front half 1221 of the right spray pipe is less than that of the spray holes in the rear half 1222 of the right spray pipe, at this time, due to different flow rates, the pressure drop of each part inside the spray pipe 12 is different. For example, in the left shower pipe 121, because the number of holes in the 1212 is large, the flow rate is high, the pressure drop at the portion 1212 is larger than that at the portion 1211, and the forces of the two side air flows acting on the two side surfaces of the left rib (151) are different (in the figure, the force of the air flow at the lower 1212 side acting on the lower side wall of the left rib (151) is less than the force of the air flow at the upper 1211 acting on the upper side wall of the left rib (151)), and because the connecting end 11 at the axial center position is fixed, the shower pipe 12 in fig. 2 is subjected to a counterclockwise torque; accordingly, in the right hand shower 122, a counterclockwise torque is also generated because the number of holes in 1221 is less than the number of holes in 1222. The torque of the two parts together causes the spray pipe 12 to rotate spontaneously while spraying. As a simplest example, one spray hole 13 can be provided in each of 1211 and 1221, while no spray holes 13 are provided in 1212 and 1222, in principle spontaneous rotation being possible. However, considering the factors such as frictional resistance, the difference in the number of holes needs to reach a certain degree, that is, the flow rate difference reaches a certain degree, and then the rotation can be realized.

Meanwhile, in order to make the rotation speed faster and the mixing more uniform, the aperture of the upper aerosol inlet 21 may be made larger than the aperture of the lower aerosol inlet 23 to increase the air flow speed when entering the shower pipe 12.

Preferably, the number of the spraying holes in the front half 1211 of the left spraying pipe is 21; the number of the spray holes in the front half 1221 of the right spray pipe is 21; the number of the spray holes in the rear half 1212 of the left spray pipe is 37; the number of spray holes in the rear half 1222 of the right side spray pipe is 37.

In one embodiment, the above number of spray holes 13 is provided in each zone of the spray pipe 12, and it has been found that the above number provides good results when the spray pipe is configured.

Preferably, the number of aerosol outlets 22 is plural; the aerosol outlets 22 are circumferentially and uniformly distributed by taking the axis of the blending tank 20 as a center, and each aerosol outlet 22 is circumferentially and uniformly distributed on the side wall of the lower part of the blending tank 20.

The aerosol generating equipment is generally used for scientific experiments and other purposes, finished product aerosol discharged by the aerosol generating equipment generally needs to be discharged into a closed space, and in order to enable the aerosol concentration at each position in the closed space to be more uniform, the aerosol mixing device is provided with a plurality of aerosol outlets 22, so that the finished product aerosol is discharged along each direction, and a better effect is achieved.

Preferably, the mixing tank 20 has a circular or regular polygonal cross-section.

The blending tank 20 serves to provide a mixing space for the standard aerosol and the clean gas, so that the external shape thereof is not strictly limited as long as a good mixing effect can be obtained.

Preferably, a hemispherical bump 14 is arranged on the bottom end face of the spray pipe 12; the spray holes 13 are disposed on the bumps 14.

When the spray holes 13 are directly formed on the bottom end surface of the spray pipe 12, the spray direction can only be perpendicular to the bottom end surface under normal conditions, and the adjustment is difficult; after the convex block 14 is adopted, the spraying hole 13 can be arranged at the bottom end or the side surface of the hemispherical structure due to the hemispherical structure, and the open holes can be oriented to different directions as required, so that the medium can be sprayed out in different directions in the tank, and the aerosol can be mixed more uniformly.

Preferably, the projection 14 is rotatably connected to the bottom end face of the shower pipe 12.

For further convenience of application, the projection 14 may be rotatably connected to the bottom end surface of the shower pipe 12 so that the user may readjust the spray direction as desired during use. In the specific implementation process, various manners may be adopted, for example, one embodiment is that the bump 14 is made of plastic or rubber material with good elasticity, an annular groove is arranged on the upper portion of the bump 14, the bump 14 is plugged into the mounting hole preset on the bottom end face of the shower pipe 12 during assembly, the annular groove is clamped on the side wall of the mounting hole preset on the bottom end face, and after the assembly is completed, when the adjustment is needed, the bump 14 can be directly rotated as needed, so that the direction of the shower hole 13 on the bump 14 is changed.

In the foregoing detailed description, various features are grouped together in a single embodiment for the purpose of streamlining the disclosure. This method of disclosure is not to be interpreted as reflecting an intention that the claimed embodiments of the subject matter require more features than are expressly recited in each claim. Rather, as the following claims reflect, invention lies in less than all features of a single disclosed embodiment. Thus, the following claims are hereby expressly incorporated into the detailed description, with each claim standing on its own as a separate preferred embodiment of the invention.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. To those skilled in the art; various modifications to these embodiments will be readily apparent, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the disclosure. Thus, the present disclosure is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. The utility model provides a fountain aerosol mixing device which characterized in that includes: the mixing tank (20) and a spraying assembly arranged inside the mixing tank (20);

the blending tank (20) is a cylindrical hollow container; an upper aerosol inlet (21) is vertically arranged on the upper side of the middle part of the top end plane of the blending tank (20); a lower aerosol inlet (23) is vertically arranged on the lower side of the middle part of the top end plane of the blending tank (20); the upper aerosol inlet (21) and the lower aerosol inlet (23) are communicated with each other; the lower part of the blending tank (20) is also provided with an aerosol outlet (22);

the spraying assembly comprises a spraying pipe (12) and a connecting end (11) vertically connected to the upper portion of the middle portion of the top end of the spraying pipe (12); the spray pipe (12) is of a hollow structure with an opening at the top, the connecting end (11) is of a hollow cylinder structure, and the spray pipe (12) is communicated with the connecting end (11) through the opening at the top; a plurality of spraying holes (13) are formed in the bottom end face of the spraying pipe (12);

the spraying assembly is rotatably connected with the lower aerosol inlet (23) through the connecting end (11);

the material of mixing jar (20) with spray assembly is the metal.

2. The spray type aerosol mixing device according to claim 1, wherein a bearing (30) is further arranged between the connecting end (12) and the lower aerosol inlet (23).

3. The spray type aerosol blending device according to claim 1, wherein the longitudinal section of the middle part of the spray pipe (12) is a hollow rectangle; the bottom end face of the spray pipe (12) is an inclined plane with a low middle part and high two sides.

4. The spray-type aerosol mixing device according to claim 1, wherein the spray pipe (12) comprises a left spray pipe (121) and a right spray pipe (122); the left spray pipe (121) comprises a left spray pipe front half area (1211) and a left spray pipe rear half area (1212), and the right spray pipe (122) comprises a right spray pipe front half area (1221) and a right spray pipe rear half area (1222); the front half area (1211) of the left spray pipe, the rear half area (1212) of the left spray pipe, the front half area (1221) of the right spray pipe and the rear half area (1222) of the right spray pipe are sequentially distributed in a circumferential direction by taking the axis of the connecting end (11) as the center; the number of spray holes in the front half area (1211) of the left spray pipe is less than that of the spray holes in the rear half area (1212) of the left spray pipe; the number of spray holes in the front half area (1221) of the right side spray pipe is less than that of the spray holes in the rear half area (1222) of the right side spray pipe;

a rib plate (15) is further arranged in the spray pipe (12), and the rib plate (15) is of a triangular prism structure which is transversely paved on the inner side of the bottom end face of the spray pipe (12); said rib (15) comprising a left rib (151) and a right rib (152); the left rib plate (151) is arranged in the front half area (1211) of the left spraying pipe; the right rib plate (152) is arranged in the front half area (1221) of the right spray pipe.

5. The spray-type aerosol mixing device according to claim 4, wherein the number of the spray holes in the front half area (1211) of the left spray pipe is 21; the number of the spray holes in the front half area (1221) of the right side spray pipe is 21; the number of the spray holes in the rear half area (1212) of the left spray pipe is 37; the number of the spray holes in the rear half area (1222) of the right side spray pipe is 37.

6. The spray type aerosol mixing device according to claim 1, wherein the number of the aerosol outlets (22) is multiple; a plurality of aerosol export (22) with the axis of mixing jar (20) is central circumference equipartition, and every aerosol export (22) all circumference arrange in on the lower part lateral wall of mixing jar (20).

7. The spray-type aerosol mixing device according to claim 1, wherein the cross section of the mixing tank (20) is circular or regular polygon.

8. The spray type aerosol mixing device according to any one of claims 1 to 7, wherein a hemispherical bump (14) is arranged on the bottom end surface of the spray pipe (12); the spraying holes (13) are arranged on the convex blocks (14).

9. The spray type aerosol mixing device according to claim 8, wherein the projection (14) is rotatably connected with the bottom end surface of the spray pipe (12).