The utility model relates to an automatic cleaning device for hard dirt in a heat exchange pipe, wherein, the steel wire cleaning screw in each heat exchange tube is connected with the tightly connected soft spring in series, and is arranged on the fixing hole plate of an inlet fixing rack or an inlet pipe box. During operation, the steel wire is cleaned with spiral, intense radial vibration, which has a strong scavenging effect on hard dirt and crystalline salt scale. The outlet pipe box installed in the first power or power driven rotary gear or leaf blade reciprocating swing block leaf, leaf block through the outlet of the heat exchange tube, outlet resistance increases, the flow velocity in the tube is greatly reduced, and the tight soft spring by the contraction of spiral steel wire cleaning retraction move more than their own pitch distance. The reciprocating movement of the steel wire cleaning screw is very effective in improving the uniformity of dirt cleaning. The steel wire cleaning screw is the convection heat transfer strengthening element in the pipe, and the heat transfer enhancement amplitude is more than twice as high as that of the continuous rotating steel wire helix. Therefore, the automatic cleaning device can protect the heat transfer equipment (evaporator, mould and condenser) to run continuously and efficiently for a long time.
【技术实现步骤摘要】
一种换热管内硬垢的自动清洗装置
本专利技术专利涉及一种换热管内硬垢的自动清洗装置,涉及换热管内硬垢、各种结晶盐垢的自动清洗防垢和对流传热强化。它适用于冷却冷冻结晶器、加热结晶器、无机盐溶液蒸发器、含硬垢的列管水冷式冷凝器、导热油加热器和油锅炉、再沸器,尤其适合于汽轮机附属设备的抽真空设备、含硬垢的水冷式冷凝器。
技术介绍
蒸发器、结晶器、地热利用的换热器、硬度较大的冷却水冷凝器等等,换热管内的结晶盐垢和水垢都比较硬,并且生长速度又快,对效率的影响特别严重。虽然现有的换热管内自动清洗技术相当多。例如,文献报道的自转塑料扭带清洗技术(汽轮机冷凝器自转塑料纽带自动在线连续除垢防垢技术研究,现代化工,2002年,第6期P44-46),对软污垢的效果比较好,对硬垢的清洗能力太弱。文献报道的自转钢丝螺旋清洗技术(自动旋转螺旋线传热技术的试验研究,化工装备技术,1997年,第5期p4-8),自动清洗能力强,又具有较好的对流传热强化作用,并且结构简单、阻力较低,综合性能比较理想,但是,存在磨损管内壁的严重缺陷,而且清洗均匀性较差、残留污垢较多。专利自转的塑包钢丝螺旋清洗技 ...
【技术保护点】
一种换热管内硬垢的自动清洗装置,主要部件有并紧软弹簧(1)、钢丝清洗螺旋(5)、换热管(6)、挡叶(7)、进口管箱(8)、出口管箱(11)、管板(4),其特征在于:在传热设备(蒸发器、冷凝器、结晶器、换热器)的出口管箱(11)内安装有挡叶(7),挡叶(7)与换热管(6)的管口之间的间距δ为1~9mm,挡叶(7)以每分钟1~30转的速度旋转,或以每分钟1~30次的速度往复摆转;挡叶(7)的叶片数为1~2,挡叶(7)的宽度B不小于换热管(6)的内径;在传热设备(蒸发器、冷凝器、结晶器、换热器)的进口管箱(8)内的并紧软弹簧(1),安装在入口固定架(3)或固定孔板(13)上;每根 ...
【技术特征摘要】
1.一种换热管内硬垢的自动清洗装置,主要部件有并紧软弹簧(I)、钢丝清洗螺旋(5)、换热管(6)、挡叶(7)、进口管箱(8)、出口管箱(11)、管板(4),其特征在于:在传热设备(蒸发器、冷凝器、结晶器、换热器)的出口管箱(11)内安装有挡叶(7),挡叶(7)与换热管(6)的管口之间的间距δ为I?9mm,挡叶(7)以每分钟I?30转的速度旋转,或以每分钟I?30次的速度往复摆转;挡叶(7)的叶片数为I?2,挡叶(7)的宽度B不小于换热管(6)的内径;在传热设备(蒸发器、冷凝器、结晶器、换热器)的进口管箱⑶内的并紧软弹簧(I),安装在入口固定架(3)或固定孔板(13)上;每根换热管(6)内安装有钢丝清洗螺旋(5);钢丝清洗螺旋(5)与并紧软弹簧(I)串联后,再安装在入口固定架(3)或固定孔板(13)上;钢丝清洗螺旋(5)的钢丝直径I?3mm,螺旋外径与换热管(6...
【专利技术属性】
技术研发人员:俞天翔,俞秀民,俞天兰,彭德其,吴金香,
申请(专利权)人:俞天翔,
类型:发明
国别省市:
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