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Tightly coupled atomizer capable of improving atomization efficiency and reducing droplet diameter

An efficient and tightly coupled technology for atomization, applied in the field of pressure gas atomization liquid, can solve the problems of increased production cost, difficult industrial production, large nitrogen source and gas compressor, etc., to improve strength, strengthen conversion efficiency, reduce Small diameter effect

Active Publication Date: 2018-05-08
INST OF MECHANICS - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If continuous production is required, the nitrogen source and gas compressor that need to be configured are very large, the production cost will be greatly increased, and it is difficult to realize industrial production

Method used

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  • Tightly coupled atomizer capable of improving atomization efficiency and reducing droplet diameter
  • Tightly coupled atomizer capable of improving atomization efficiency and reducing droplet diameter
  • Tightly coupled atomizer capable of improving atomization efficiency and reducing droplet diameter

Examples

Experimental program
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Effect test

Embodiment 1

[0043] Embodiment one, as figure 1 As shown, this embodiment provides a close-coupled atomizer that improves atomization efficiency and reduces droplet diameter, including an upper body 1, a lower body 2, and a catheter 3 with a hollow tube structure, wherein the lower body 2 is sleeved on An airtight gas resident space 4 is formed outside the upper body 1 and between the upper body 1 ; the catheter 3 is arranged in the inner hole of the upper body 1 . The end surface of the conical body combined between the upper body and the lower body is provided with an annular slot type or an annular hole type gas nozzle 5 communicating with the gas resident space 4;

[0044] The inside of the outlet end of the catheter (the end of the catheter 31) is in the shape of a truncated cone with an enlarged opening, that is, an expansion outlet structure is formed inside the end of the catheter, and the expansion angle α is 30° to 150°; The inside of the liquid pipe can also be a circular strai...

Embodiment 2

[0049] Embodiment two, such as figure 2 , 3 As shown, on the basis of Embodiment 1, the specific modification structure can be: a plurality of triangular grooves 32 of the same depth processed along the circumferential end surface of the catheter end 31 of the catheter 3, the triangular grooves 32 The two ends of the top edge of the top edge are respectively connected to the outer wall and the inner wall, and the triangular grooves 32 are arranged at intervals on the circumferential end surface of the catheter end 31, so that the catheter end 31 forms a zigzag shape. Wherein, the depth h of the triangular groove 32 (recessed depth relative to the catheter end 31) is 0.1-6mm, and the number is 2-40, and the adjacent triangular grooves 32 are not directly connected, but are connected through the original guide. The unmodified part of the end of the liquid pipe is connected, and this part is generally trapezoidal 32A, that is, the end surface of the end surface of the liquid pi...

Embodiment 3

[0051] Embodiment three, as Figure 4 , 5 As shown, on the basis of Embodiment 1, the modified structure can also be a plurality of triangular grooves 32 of the same depth processed along the circumferential end surface of the catheter end 31, and the two ends of the top edge of the triangular groove 32 are respectively connected. On the outer side wall and the inner side wall, the depth h of the triangular grooves 32 is 0.1-6mm, and the number is 2-40, and the adjacent triangular grooves 32 are directly connected by adjacent sides, and the connecting sides form an opposite direction 32B, that is, adjacent triangular grooves 32 are directly connected by their hypotenuses.

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Abstract

The invention provides a tightly coupled atomizer capable of improving the atomization efficiency. The tightly coupled atomizer comprises an upper body, a lower body arranged outside the upper body ina sleeving manner, and a liquid guide pipe arranged in the upper body; an airtight gas storage space is formed between the upper body and the lower body, and the interior of the tail end of the liquid guide pipe is straight tubular, or the opening of the liquid guide pipe is in a increasing inverted cone shape with the angle of 30 DEG - 150 DEG; the peripheral pipe diameter of the tail end of theliquid guide pipe is consistent or the tail end of the liquid guide pipe is in the cone shape, namely that the tail end of the liquid guide pipe is obliquely contracted in the axis direction; and thetail end face of the liquid guide pipe is provided with a non-planar modification structure for enhancing high-speed airflow and low-speed liquid flow to form vortex and turbulent flow. According tothe tightly coupled atomizer provided by the invention, by changing the shape of the tail end outlet of the liquid guide pipe, the airflow disturbance is generated at the outlet position, so that thestrength of the high-speed airflow and low-speed liquid flow for forming the vortex and turbulent flow is improved, and the atomized droplet diameter is reduced; and the conversion efficiency betweengas-liquid mixtures and energy at a central backflow area is improved.

Description

technical field [0001] The invention relates to the field of pressure gas atomized liquid, in particular to a close-coupled atomizer that can strengthen high-speed air flow and low-speed liquid flow to form eddy and turbulent flow, and can improve atomization efficiency and reduce the average diameter of liquid droplets. . Background technique [0002] Close-coupled atomizers mostly adopt ring-slit and ring-hole structures. Since the outlet of the gas nozzle is very close to the atomized liquid in the center, the atomization efficiency is greatly improved, and it is widely used in industry. [0003] Improving atomization efficiency, reducing gas consumption, and reducing the particle size of atomized droplets (which become solid powder after cooling) are always the goals pursued by people. The ring-hole atomizer is obviously better than the ring-slit atomizer in terms of atomization efficiency. In the past, the ring-hole atomizer mostly used axisymmetric round-hole gas nozz...

Claims

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Application Information

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IPC IPC(8): B22F9/08
CPCB22F9/082B22F2009/088
Inventor 王吉南
Owner INST OF MECHANICS - CHINESE ACAD OF SCI
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