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板换与螺旋缠绕管式换热器相同和不同之处

小易为你介绍一下板换与螺旋缠绕管式换热器相同和不同之处

相同之处:换热效率高,冷凝效果好,适用于化工、石油、医药、食品、热电力、造纸、印刷等行业。
 
不同之处:1)对介质的要求:板换不适用于流速高、粘度大的工况,易结垢,清洗不方便,螺旋管式换热器对工况没有要求,节省了维修费用;
                2)高温情况下:板换由于密封垫的缘故,不耐高温,即使在承受的范围内,也需要不定期更换密封垫,这样后期的维护费用就高了,螺旋管式换热器因内部独特的双螺纹缠绕形式,耐高温耐高压,无需后期维护;
                3)换热领域:板换只适用于液液领域,因不耐高压,不适用气液领域;而螺旋管式适用于气液、液液领域。
                4)体积:在相同换热效率时、板换的体积是螺旋管式换热器的3倍.
                5)温度差:板换从-10℃ —80℃ ;螺旋板式换热器可以从-30℃—400℃;
                6)寿命:板换一般1-6年的使用,最高也就6年;螺旋管式换热器的设计寿命为40年,在正常使用条件下,如有任何问题,8年内免费维修,一般寿命可达20年以上,节省了后期维护费用。
  英文:

Xiaoyi will introduce the similarities and differences between plate exchange and spiral wound tube heat exchanger for you.


Similarities: High heat transfer efficiency, good condensation effect, suitable for chemical industry, petroleum, medicine, food, thermal power, paper making, printing and other industries.


The differences are as follows: 1) Requirements for medium: plate replacement is not suitable for high flow rate and high viscosity conditions, easy to scale, inconvenient cleaning, spiral tube heat exchanger has no requirements for working conditions, saving maintenance costs;

2) Under high temperature conditions: plate replacement is not resistant to high temperature because of the sealing gasket. Even in the range of bearing, it is necessary to change the sealing gasket periodically, so that the later maintenance cost is high. Because of the unique twin-thread winding form inside, the spiral tube heat exchanger is resistant to high temperature and high pressure, and does not need later maintenance.

3) Heat transfer field: plate replacement is only suitable for liquid-liquid field, because it can not withstand high pressure, it is not suitable for gas-liquid field; while spiral tube type is suitable for gas-liquid and liquid-liquid field。

4) Volume: At the same heat transfer efficiency, the volume of plate exchange is three times that of spiral tube heat exchanger。

5) Temperature difference: plate replacement from - 10 C to 80 C; spiral plate heat exchanger from - 30 C to 400 C;

6) Life: plate replacement is generally used for 1-6 years, the maximum is 6 years; the design life of spiral tube heat exchanger is 40 years。 Under normal conditions, if there are any problems, free maintenance within 8 years, the general life can reach more than 20 years, saving later maintenance costs。

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