电伴热和高温水伴热的技术经济分析

通过电伴热与高温水伴热在技术性能上的对比 ,并就大庆石化总厂化工厂 130 0m长工艺管线的保温 ,采用电伴热和高温水伴热两种方案进行了技术经济分析比较 ,论证了采用电伴热性能可靠 。

单管树状电加热地面集输工艺应用效果

单管树状电加热地面集输工艺中,采出的原油经过井口高频电磁加热器加热后,汇入集油支线,然后进入集油干线——集油支线和干线是带碳纤维加热线的防腐黄夹克管。整个集油流程靠井口油压驱动进站,集油单管在形态上呈树状。对单管树状电加热地面集输工艺的现场应用进行监测和分析,证明了该集输工艺能够保证原油正常集输。具有工艺简单,投资少,耗能小,经济效益高的特点。

Large Area Thermionic Cathode and Its Prilimiary Experimental Results

A 2MeV thermionic cathode test stand was established to meet the requirement of the large area thermionic cathode system.A 100ram in diameter type'B'thermionic dispenser cathode was developed.A 1000A emission current was produced at the voltage of the diode about 1.8MV,the pulse width about 90ns(FWHM),and the cathode temperature about 1350℃.The emission current density is 12A/cm^2.The results indicate that a large area thermionic cathode which produces high quality and high current electron beams is visible.The results also indicate that the ability of cathode emission relies on the diode-vacuum and cathode-temperature.

Austenite Grain Growth Behavior of X80 Pipeline Steel in Heating Process

在Through changing soaking temperature and soaking time, austenite grain growth behavior of X80 pipeline steel under different heating conditions was studied. Relationships of average grain size to soaking temperature and time were obtained respectively. The results show that the prior austenite grains grow with the increase of soaking temperature and time. When soaking temperature is lower than 1 180 ℃, austenite grain size and growth rate are small; when it higher than 1 200 ℃, austenite grains grow rapidly and abnormal grain growth appears. For soaking at 1 180 ℃, austenite grain growth rate is initially high and then decreases when soaking time exceeds 1 h.

电伴热集油流程应用评价及节电规律探讨

本文介绍了电伴热集油流程在兴茂公司的应用情况,并针对兴茂油田的实际情况,对新建电伴热集油流程与原集油方式和老区掺水集油流程的投资与运行成本进行对比分析,总结了电伴热集油流程这种集输模式的特点。针对电伴热集油流程积极开展节能措施达到节能降耗的目的。