A pressure-adjustable pressure-stabilizing fuel nozzle

Abstract

The invention discloses a pressure-adjustable pressure-stabilized fuel nozzle, which relates to the technical field of nozzles, and comprises a casing, a liquid supply interface and a spray head formed by the casing, and the casing also forms a rectifying cavity communicating with the spray head and connecting the The liquid inlet chamber of the liquid supply interface, and between the liquid inlet chamber and the rectifying chamber at the front end, the casing forms a variable diameter pipe section with a contraction in the middle and a front and rear expansion structure. The casing forms an independent pressure regulating chamber behind the liquid inlet chamber The nozzle also includes a control rod that passes through the pressure regulating chamber, the liquid inlet chamber and the housing between the two, and finally extends to the junction of the variable diameter pipe section and the liquid inlet chamber, and the control rod can move back and forth in the housing , and the pressure adjustment process and the pressure stabilization process of the nozzle are realized by moving the control rod back and forth. The invention has the function of automatic and precise adjustment of the injection pressure ratio, ensures that the pressure of the flow field inside the nozzle is stable and adjustable, thereby improving the stability of the ejection flow of the nozzle, and has the function of enhancing the atomization to improve the quality of the jet work.

Description

technical field [0001] The invention relates to the technical field of nozzle manufacturing, in particular to a pressure-adjustable pressure-stabilizing fuel nozzle. Background technique [0002] Nozzles can be roughly divided into spray nozzles, fuel nozzles, sandblasting nozzles, watering nozzles, etc. according to their functions. Usually, the pressure of the nozzles comes from the pressure of the high-pressure liquid in the pipeline connecting the nozzles, so when the unstable high-pressure liquid enters the nozzle When the nozzle itself cannot be self-regulated, this will cause the instability and unbalance of the liquid flow rate. When the unstable high-pressure liquid is sent into the nozzle, there will be a significant change in pressure, which will affect the quality of the jet flow of the nozzle and the ejection flow rate. Extremely unstable. [0003] In order to solve this problem, it is usually possible to improve the working efficiency of the jet nozzle by adju...

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Problems solved by technology

[0002] Nozzles can be roughly divided into spray nozzles, fuel nozzles, sandblasting nozzles, watering nozzles, etc. according to their functions. Usually, the pressure of the nozzles comes from the pressure of the high-pressure liquid in the pipeline connecting the nozzles, so when the unstable high-pressure liquid enters the nozzle When the nozzle itself cannot be self-regulated, this will cause the instability and unbalance of the liquid flow rate. When the unstable high-pressure liquid is sent into the nozzle, there will be a significant change in pressure, which will affect the quality of the jet flow of the nozzle and the ejection flow rate. extremely unstable

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