板式换热器(qi)板片材(cai)质采用(yong)材(cai)料(liao)有(you)哪(na)些?

　　板(ban)(ban)式换热器板(ban)(ban)片材质(zhi)采用的材料有以下(xia)几点(dian):

　　1、板(ban)式换(huan)热(re)器(qi)(qi)板(ban)片(pian)材质基本上采(cai)用不(bu)锈钢(gang)、钛合金两(liang)种。由(you)于钛材料(liao)价格(ge)为(wei)不(bu)锈钢(gang)的(de)4～6倍，且高炉(lu)冷却系统板(ban)式换(huan)热(re)器(qi)(qi)板(ban)片(pian)材质采(cai)用不(bu)锈钢(gang)即可满足要求，为(wei)此换(huan)热(re)器(qi)(qi)板(ban)片(pian)材质选用不(bu)锈钢(gang)。

　　2、换(huan)(huan)(huan)热器(qi)板(ban)(ban)(ban)片(pian)厚度(du)(du)换(huan)(huan)(huan)热器(qi)板(ban)(ban)(ban)片(pian)厚度(du)(du)与(yu)传(chuan)(chuan)热系数(shu)成(cheng)反比关(guan)系，板(ban)(ban)(ban)片(pian)厚度(du)(du)越小(xiao)，传(chuan)(chuan)热效果越好，但同时也容易腐(fu)蚀泄漏。现国内板(ban)(ban)(ban)式换(huan)(huan)(huan)热器(qi)板(ban)(ban)(ban)片(pian)厚度(du)(du)一股为(wei)0.5～1.0mm，考虑(lv)到厂家制造工艺、现场(chang)操作水平及腐(fu)蚀、除垢等因(yin)素，换(huan)(huan)(huan)热器(qi)板(ban)(ban)(ban)片(pian)厚度(du)(du)宜选择0.7～0.9ram。     板(ban)(ban)(ban)式换(huan)(huan)(huan)热器(qi)的板(ban)(ban)(ban)片(pian)的设计厚度(du)(du)与(yu)其耐腐(fu)蚀性能(neng)无关(guan)，与(yu)换(huan)(huan)(huan)热器(qi)的承压能(neng)力(li)有关(guan)。板(ban)(ban)(ban)片(pian)加厚，能(neng)提高换(huan)(huan)(huan)热器(qi)的承压 能(neng)力(li)。采用(yong)人(ren)字形板(ban)(ban)(ban)片(pian)组合(he)时，相(xiang)邻板(ban)(ban)(ban)片(pian)互(hu)相(xiang)倒置(zhi)，波纹相(xiang)互(hu)接触(chu)，形成(cheng)了密度(du)(du)大、分布(bu)均匀(yun)的支点，板(ban)(ban)(ban)片(pian)角孑L及边缘密封结构(gou)已逐(zhu)步完善(shan)，使换(huan)(huan)(huan)热器(qi)具有很好的承压能(neng)力(li)。