1.螺旋板式换热器的升温、升压及负荷调节应严格按步序进行。一般情况是:先调节温度、压力较低的一侧，然后在调节另一侧。冷、热介质温差比较大时，升温、升压及负荷调节应缓慢进行，并应特别慎重。

When you increase the temperature, boost pressure and adjust the load, you should operate strictly by steps.In general, you should regulate the side of lower temperature and pressure, then the other side. When the difference in temperature is too large between hot and cold medium, you should do it slowly and carefully。

2.用蒸汽加热油品的螺旋板式换热器，开机时，先进油，后进蒸汽。停机时，先停蒸汽、后停油。准备长时间停用时，将通道内油排净并清洗。

If the machine is used for heating oil by steam, you shold do it as follows:

(1) When you start it, pour the oil first, then the steam.

(2) When you shut down it, stop the steam first, then the oil.

(3) If you won't use it for a long time, clean up the passage.

3.严禁将含有可沉降固体颗粒或纤维状杂质等的液体介质，用于不可拆式螺旋板换热器的热交换。

Undetachable Spiral Heat Exchanger is forbidden to exchange heat by the fluid that has solid grain, fibrous impurities and so on.

4.严禁选用对设备金属材料有较强腐蚀性的清洗剂，进行螺旋板式换热器通道内的清洗除垢。

Prohibit cleaning the passage of the machine by the detergent that is strong corrosive to the metal.

5.有紧固件的螺旋板换热器，雷再次紧固后方可使用。

If the machine has fasteners,you should tight them again.

6.若螺旋板换热器外圈存在外包板的，上下角焊缝有两处未焊满间隙口，是应力释放口，请用户不需焊满。

If there is outsourcing board on the outer of Spiral Heat Exchanger, the upper and lower fillet weld will have two mouth gaps, which are stress release ports. Please don't weld.

7.螺旋板式换热器,如出现反复开、停机，在停机时(或开机前)一定要将蒸汽一侧通道的冷凝水排净后使用。

Spiral Heat Exchanger, such as repeated open, shut down, in the shutdown (or before the boot) must be the steam side of the condensate water discharged after the use of.

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优卡达螺旋板式换热器