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板式换热器是怎么去调节水流量来降低温度的呢?

作者:seo来源:未知2019-12-27 11:50
摘要:板式换热器 其实就是一系列有着波纹形状的金属片折叠而成的换热器,在各种板片之间就形成了巨形通道的,而且是可以通过板片进行热交换的的,那么板式换热器是怎么去调节水流量

    板式换热器其实就是一系列有着波纹形状的金属片折叠而成的换热器,在各种板片之间就形成了巨形通道的,而且是可以通过板片进行热交换的的,那么板式换热器是怎么去调节水流量来降低温度的呢?
 

板式换热器是怎么去调节水流量来降低温度的呢?
 

万福彩票   TAJUYOUHUANREXIAOLVGAO、RESUNSHIXIAO、JIEGOUJINCOUQINGQIAO、ZHAN DIMIANJIXIAO、ANZHUANGQINGXIFANGBIAN、YINGYONGGUANGFAN、SHIYONGSHOUMINGZHANGDENGTEDIAN。ZAIXIANGTONGYALISUNSHIQINGKUANGXIA,QICHUANREXISHUBIGUANSHIHUAN REQIGAO3-5BEI,ZHANDIMIANJIWEIGUANSHIHUANREQIDESANFENZHIYI,REHUISHOULVKEGAODA90%YISHANG。

  润滑系统中的板式换热器是汽轮机装置的一个重要组成部分,由于油在循环过程中,吸收了轴承等处磨擦产生的热量,因而温度不断升高,为保证机组安全可靠地运行。必须把油温控制在规定的范围内(要求高不超过60-65℃,也不低于35-40℃)温度过高可能轴承等部件过热而损坏。并会降低润滑油使用期限,温度过低会使润滑油粘度增加,增加磨擦耗工,甚至旨起机器振动。所以使用板式换热器通过调节冷却水流量来过到降低润滑油温度的目的。

万福彩票        In fact, plate heat exchanger is a series of folded metal sheets with corrugated shape, forming a huge channel between various plates, and it can exchange heat through plates, so how does plate heat exchanger regulate water flow to reduce low temperature?

  The utility model has the advantages of high heat exchange efficiency, small heat loss, compact and light structure, small floor area, convenient installation and cleaning, wide application, long service life, etc. Under the same pressure loss, the heat transfer coefficient is 3-5 times higher than that of the tube heat exchanger, the floor area is one third of the tube heat exchanger, and the heat recovery rate can be as high as 90%.

  The plate heat exchanger in the lubrication system is an important part of the steam turbine. Because the oil absorbs the heat generated by the friction of bearings and other places during the circulation process, the temperature keeps rising, so as to ensure the safe and reliable operation of the unit. The oil temperature must be controlled within the specified range (no more than 60-65 ℃ and no less than 35-40 ℃), which may damage the bearing and other components due to overheating. And it will reduce the service life of the lubricating oil. Too low temperature will increase the viscosity of the lubricating oil, increase the friction consumption and even cause the vibration of the machine. Therefore, the plate heat exchanger is used to reduce the lubricating oil temperature by regulating the cooling water flow.


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