假设板壳式换热器为特殊板式换热器,介绍了板壳式换热器传热准则关系式的研究方法.分析比较了壁面温度测定法、等雷诺数法、威尔逊法和等流速法等的适用性,确定了利用等流速法来进行实验研究,并分别进行了测定实验和验证实验,测定实验控制进出口流速相同,验证实验控制热侧流速不变,改变冷侧流速,采用实验获得的数据拟合传热准则关系式,计算出传热系数的相对误差.结果表明:传热系数的相对误差小于5%,所得传热准则关系式是合理的,表明板式换热器的研究方法适用于板壳式换热器. Assuming that the plate and shell heat exchanger is a special plate heat exchanger, the research method of the heat transfer criterion of the plate and shell heat exchanger is introduced.The wall temperature measurement method, the Reynolds number method, the Wilson method and the isokinetic method Such as the applicability of the determination of the use of equal velocity method for the experimental study and measurement experiments and verification experiments were carried out to determine the same experimental import and export control flow rate to verify the experimental control of the hot side of the flow rate constant change cold side flow rate, The obtained data fit the heat transfer criterion, and calculate the relative error of the heat transfer coefficient.The results show that the relative error of the heat transfer coefficient is less than 5%, the heat transfer criterion is reasonable, which shows that the plate heat exchanger The method is suitable for plate and shell heat exchangers.