The utility model relates to a new water-cooled air assisted automatic control urea solution ejector. The utility model is characterized in that the outer shell, the inner runner, the lower cavity body, the inner cavity tube and the liquid inlet joint are included, the inner runner is arranged in the outer shell, the inner runner and the outer shell constitute the air cavity, the outer shell is provided with the air tube, the air tube is connected with the air cavity, the inner runner outlet is even with the air channel outlet of the air cavity, and the jet port of the ejector can be arranged. Forming negative pressure. The utility model provides an ejector with simple and reasonable structure, which does not need a specific SCR urea pump in the prior art to control the ejection quantity, and only adjusts the injection quantity by adjusting the duty ratio of the proportional solenoid valve in the ejector, that is, it has the function of both pump and nozzle; after the air source enters the air cavity from the ventilation tube, it can pass through the inner cavity. The liquid in the tube and inner core is cooled, and the cooling water is sent into the cooling chamber through the cooperation of the high outlet pipe and the low inlet pipe to cool the liquid through the ejector.
【技术实现步骤摘要】
一种新型的水冷空气辅助式自控型尿素溶液喷射器
本技术涉及一种新型的水冷空气辅助式自控型尿素溶液喷射器。
技术介绍
气助式尿素计量泵虽然在SCR后处理系统中起着至关重要的作用,但是现有的气助式尿素计量泵也存在着以下的弊端:结构复杂,制造成本过高,结构密封性要求高,泵体和喷嘴分离以至于浪费安装空间,不利于集成,不方便安装和维修,雾化效果不显著。因此,优化结构、减少制造成本、方便安装维修、提升雾化效果成了急需解决的课题。
技术实现思路
针对现有技术中存在的问题,本技术的目的在于提供一种新型的水冷空气辅助式自控型尿素溶液喷射器的技术方案。所述的一种新型的水冷空气辅助式自控型尿素溶液喷射器,其特征在于包括外壳、内部流道、下腔体、内腔管和进液接头,内部流道设置在外壳内,内部流道与外壳构成气腔,外壳上设置通气管,通气管与气腔连通,内部流道的流道出口与气腔的气道出口齐平,在喷射器的喷射口能够形成负压;所述下腔体通过固定法兰与外壳相连,下腔体内设置内腔管,内腔管与内部流道连通,内腔管与下腔体构成冷却腔,下腔体上设置低位进水管和高位出水管,低位进水管和高位出水管均与冷却腔连通,低位进水管和高 ...
【技术保护点】
1.一种新型的水冷空气辅助式自控型尿素溶液喷射器,其特征在于包括外壳、内部流道、下腔体、内腔管和进液接头,内部流道设置在外壳内,内部流道与外壳构成气腔,外壳上设置通气管,通气管与气腔连通,内部流道的流道出口与气腔的气道出口齐平,在喷射器的喷射口能够形成负压;所述下腔体通过固定法兰与外壳相连,下腔体内设置内腔管,内腔管与内部流道连通,内腔管与下腔体构成冷却腔,下腔体上设置低位进水管和高位出水管,低位进水管和高位出水管均与冷却腔连通,低位进水管和高位出水管具有一高度差;所述内腔管上方设置进液接头。
【技术特征摘要】
1.一种新型的水冷空气辅助式自控型尿素溶液喷射器,其特征在于包括外壳、内部流道、下腔体、内腔管和进液接头,内部流道设置在外壳内,内部流道与外壳构成气腔,外壳上设置通气管,通气管与气腔连通,内部流道的流道出口与气腔的气道出口齐平,在喷射器的喷射口能够形成负压;所述下腔体通过固定法兰与外壳相连,下腔体内设置内腔管,内腔管与内部流道连通,内腔管与下腔体构成冷却腔,下腔体上设置低位进水管和高位出水管,低位进水管和高位出水管均与冷却腔连通,低位进水管和高位出水管具有一高度差;所述内腔管上方设置进液接头。2.根据权利要求1所述的一种新型的水冷空气辅助式自控型...
【专利技术属性】
技术研发人员:罗献尧,王伟敏,罗献省,
申请(专利权)人:浙江爱力浦科技股份有限公司,
类型:新型
国别省市:浙江,33
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