The invention discloses a tube bundle support structure of a shell-and-tube heat exchanger, which comprises a circle set outside the support structure and a swirling tube set inside the circle. The swirling tubes are arranged in a square arrangement, and the adjacent swirling tubes are welded by steel sheets, and the swirling tubes close to the circle are welded by steel sheets. The four adjacent swirling tubes and the connected steel sheets are jointly enclosed to form a heat exchangeable tube to pass through. Through holes, and the outer walls of four adjacent swirl tubes are tangent to the outer walls of heat exchanger tubes. The heat exchanger tubes passing through the holes are clamped to form support for the heat exchanger tubes. At the same time, the swirl tube can also be used for fluid passage. The swirl flow occurs after the swirl tube, which displaces the near and far wall fluid in the shell, increases the heat transfer coefficient of the shell side fluid and improves the overall heat transfer efficiency. In addition, the shell-side fluid can flow through the gap between the swirl tube and the heat exchanger tube. The shell-side fluid flows along the axial direction of the heat exchanger tube, avoiding the induced vibration when the fluid flushes the heat exchanger tube bundle transversely.
【技术实现步骤摘要】
一种管壳式换热器的管束支撑结构
本专利技术属于传热设备领域,涉及一种管壳式换热器的管束支撑结构。
技术介绍
现有技术中的管壳式换热器通常设置的弓形折流板,其作为对换热管起支撑作用的部件,通常由钢板加工而成,呈弓形,弓形是由圆形切掉1/4至1/3部分而成,流体从缺口部位通过,在弓形折流板上设管孔供换热管穿过,从而对换热管起支撑作用,若干折流板沿轴向等间距布置,相邻两块折流板的缺口方向相反,壳程流体从上下缺口或左右缺口交替流过,呈“S”形流动,但这样的流动方式容易产生流动死角,传热面积无法被充分利用,因而壳程传热系数低、易结垢、流体阻力大,而且当流体横向流过管束时,还可能使管子产生诱导振动,破坏管子与管板连接的可靠性。
技术实现思路
为了克服现有技术中存在的不足,本专利技术提供一种管壳式换热器的管束支撑结构,所述管束支撑结构的设计,不仅使换热器的换热管束得到支撑,而且使得换热器壳程流体沿换热管轴向流动,避免流体横向流动时对管束的冲击,减轻换热管束的振动,减小壳程流动阻力。所述管束支撑结构中旋流管的设计,除了对换热管起到支撑作用外,还可供流体通过,在流体流经旋流管后产生旋流 ...
【技术保护点】
1.一种管壳式换热器的管束支撑结构,其特征在于,包括设在支撑结构外围的圆环和设在圆环内的若干旋流管,所述旋流管呈正方形排列,所述旋流管的间距等于换热器中换热管的间距,相邻的所述旋流管之间通过钢片焊接连接,靠近圆环的旋流管与圆环之间通过钢片焊接连接,相邻的4个旋流管及其连接钢片共同围成可供换热器中的换热管穿过的通孔,且相邻的4个旋流管的外壁与所述换热管的外壁相切,对穿过通孔的换热管进行夹持,形成对换热管的支撑。
【技术特征摘要】
1.一种管壳式换热器的管束支撑结构,其特征在于,包括设在支撑结构外围的圆环和设在圆环内的若干旋流管,所述旋流管呈正方形排列,所述旋流管的间距等于换热器中换热管的间距,相邻的所述旋流管之间通过钢片焊接连接,靠近圆环的旋流管与圆环之间通过钢片焊接连接,相邻的4个旋流管及其连接钢片共同围成可供换热器中的换热管穿过的通孔,且相邻的4个旋流管的外壁与所述换热管的外壁相切,对穿过通孔的换热管进行夹持,形成对换热管的支撑。2.根据权利要求1所述的管束支撑结构,其特征在于,所述旋流管包括圆管和设置在圆管内部的旋流片,所述旋流片的长度与圆管的长度相等。3.根据权利要求2所述的管束支撑结构,其特征在于,所述圆管采用无缝钢管。4.根据权利要求2所述的管束支撑...
【专利技术属性】
技术研发人员:黄德斌,钟嘉恒,
申请(专利权)人:佛山科学技术学院,
类型:发明
国别省市:广东,44
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