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Supersonic two-phase flow sprayer

A spray device and two-phase flow technology, applied in the field of supersonic two-phase flow spray devices, can solve the problems of increased manufacturing, maintenance, operating costs, uneven droplet particles and spraying, and small spraying area, achieving light weight, Simple structure and large spraying area

Inactive Publication Date: 2007-06-27
张永康
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AI Technical Summary

Problems solved by technology

[0002] Existing agricultural plants and fire extinguishing spraying devices all use high-pressure gas-driven two-phase flow spraying technology, the main disadvantages of which are small spraying area, short range, mist particles and uneven spraying
At the same time, the high-pressure gas only acts as a driving carrier, and cannot effectively participate in the work of the liquid medium, resulting in low efficiency
The generation of high-pressure gas requires a high-power compressor, and excessive gas pressure requires high-strength container equipment, which increases manufacturing, maintenance, and operating costs

Method used

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  • Supersonic two-phase flow sprayer

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Embodiment Construction

[0017] The following structural drawings and embodiments further illustrate the present invention.

[0018] As shown in Figure 1-2.

[0019] A supersonic two-phase flow spraying device is composed of two parts: a supersonic nozzle air supply system and a water supply system composed of a fine water spray hole group and a fine gap ring. Wherein the spray water supply system includes a water inlet (1) and a fine water spray hole group (7) and a fine gap ring (7a), and the fine gap ring (7a) is formed by cooperation of a Laval tube (11) and a water kit (10) ( Shown in Figure 2); the supersonic nozzle air supply system consists of high-pressure steam inlet (1), first reducer (2), throat (3), rear expander (6), mixing chamber (8) and mixed gas Outlet (9) is formed (shown in Fig. 1~2).

[0020] The high-pressure steam enters from the steam inlet (1), and after passing through the first reducer (2), the high-pressure steam is accelerated, and when it reaches the throat (3), the spe...

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Abstract

The present invention discloses a kind of supersonic two-phase flow sprayer, which includes a supersonic nozzle system comprising a high pressure steam inlet, a front reducing pipe, a back reducing pipe, a mixing chamber and a mixed gas outlet, and a water supply system comprising a liquid / water mixture inlet, a fine water orifice assembly and a fine interval ring. Both the front reducing pipe and the back reducing pipe are constituted by the cavity inside the Laval nozzle. The present invention has the advantages of simple structure, small size, light weight, low cost, homogeneous fog drop size, high atomizing efficiency, great sprayed area, long striking distance and wide application range.

Description

technical field [0001] The invention relates to a physical mixing and spraying device, especially a supersonic vapor-liquid two-phase mixing spraying device for thermal energy and kinetic energy conversion, vapor-liquid two-phase flow mixing and pumping, specifically a supersonic two-phase flow spray device. Background technique [0002] Existing agricultural plant and fire extinguishing spraying devices all adopt high-pressure gas-driven two-phase flow spraying technology, and its main disadvantages are small spraying area, short shooting range, mist particles and uneven spraying. At the same time, the high-pressure gas only acts as a driving carrier, and cannot effectively participate in the work of the liquid medium, resulting in low efficiency. The generation of high-pressure gas requires a high-power compressor, and excessive gas pressure requires high-strength container equipment, which increases manufacturing, maintenance, and operating costs. Contents of the inven...

Claims

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Application Information

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IPC IPC(8): B05B17/04B05B7/02
Inventor 张永康朱广朱玉平
Owner 张永康
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