The invention relates to the technical field of heat exchange, in particular to a fixed pipe pipe heat exchanger, which is a kind of boiler, which can realize reverse scour cleaning and ash cleaning. To solve the technical problem, existing fixed tubar structure caused by the heat exchanger shell transverse scour column heat flue gas flow pipe surface of constant use in heat environment in flue gas containing ash water pipe heat exchanger, the tube surface is easy to produce dust smoke back problems, solutions take to provide a realization of backscour Qing fixed ash tube pipe heat exchanger, which is composed of a heat exchanger shell and tube, water inlet header and outlet header, flue, flue gas flow switching device and a collecting hopper, wherein the heat exchanger shell, the front and rear panels some are plate heat exchanger shell, two lateral smoke inlet and the upper and lower two side outlet; the flue for the front and rear periphery of the flue gas flue; flow switching device is composed of top and bottom plate and the upper, The lower shaft is made up.
【技术实现步骤摘要】
可实现反向冲刷清灰的固定式列管水管热交换器
本专利技术涉及热交换
,特别是涉及锅炉一种可实现反向冲刷清灰的固定式列管水管热交换器。
技术介绍
目前,在锅炉上普遍使用的固定式列管水管热交换器,由热交换器壳体、在热交换器壳体内两端分别与热交换器壳体上的管板管孔配合焊固的列管、分别固定在热交换器壳体上、下端的上、下烟道和分别固定在热交换器壳体两侧管板的进、出水联箱组成(当进、出水联箱并列固定在热交换器壳体一侧管板上时,在热交换器壳体另一侧管板上附加固定有回转封头,回转封头内腔为水回转室),由省煤器送出的热质烟气经过固定式列管水管热交换器上烟道、热交换器壳体内、下烟道后由引风机引出,锅炉水循环系统中的水由进水联箱上的进水管座流入,经过一侧进水联箱、列管内腔、另一侧出水联箱后,由出水联箱上的出水管座流出(当进、出水联箱并列固定在热交换器壳体一侧管板上时,锅炉水循环系统中的水由进水联箱上的进水管座流入,经过进水联箱、下层列管内腔、回转封头内腔即水回转室、上层列管内腔、出水联箱后,由出水联箱上的出水管座流出),在列管内腔流动的水与经过热交换器壳体内横向冲刷列管表面时的热质 ...
【技术保护点】
一种可实现反向冲刷清灰的固定式列管水管热交换器,它由热交换器壳体、列管、进水联箱、出水联箱、烟道组成,其特征在于:还有烟气流向切换装置和集灰斗,A、所述热交换器壳体前、后板的上、下部板面分别有热交换器壳体上、下两个侧向进烟口和上、下两个侧向出烟口;B、所述烟道为前、后侧外围烟道,所述前、后侧外围烟道分别由所述热交换器壳体前、后板和对应的外围前、后侧烟道壁组成,所述外围前、后侧烟道壁的下部分别有所述固定式列管水管热交换器的烟气入口和出口;C、所述烟气流向切换装置由上、下摆板和上、下转轴组成,所述上、下摆板一长边分别与所述上、下转轴配合键销固定;D、所述集灰斗内前、后对称轴线位 ...
【技术特征摘要】
1.一种可实现反向冲刷清灰的固定式列管水管热交换器,它由热交换器壳体、列管、进水联箱、出水联箱、烟道组成,其特征在于:还有烟气流向切换装置和集灰斗,A、所述热交换器壳体前、后板的上、下部板面分别有热交换器壳体上、下两个侧向进烟口和上、下两个侧向出烟口;B、所述烟道为前、后侧外围烟道,所述前、后侧外围烟道分别由所述热交换器壳体前、后板和对应的外围前、后侧烟道壁组成,所述外围前、后侧烟道壁的下部分别有所述固定式列管水管热交换器的烟气入口和出口;C、所述烟气流向切换装置由上、下摆...
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