摘要
提出了一种利用液体介质恒温槽中的液体,对空气进行加热和恒温,获得理想空气温度场的空气介质恒温槽技术,并通过实验,证明这种技术可行。设计了一个空气介质测试腔和热交换管,热交换管一端与测试腔连接,另一端与压缩空气连接,测试腔与热交换管浸没在液体介质恒温槽中。压缩空气在热交换管中经液体连续加热和恒温,到达测试腔时温度与液体温度相同,并均匀分布在测试腔内。测量测试腔内空气温度场的均匀性和稳定性,可以达到液体介质恒温槽温度场的水平。
A technology is presented for the design of air medium thermostatic bath which can obtain ideal air temperature field when the air is heated and maintained at a constant temperature by the liquid of the bath. The feasibility of this method can be proved by designing an experi- ment consisting of a heat-exchange tube and an air test chamber. One end of the heat-exchange tube is connected to air test chamber while the other to compressed air. Heat-exchange tube and test chamber are immersed in the liquid of the bath. The compressed air in the heat-exchange tube is heated and maintained at a constant temperature by the liquid of the bath, the temperature of the air will be the same as the liquid when it reaches and uniformly distributed in the test chamber. The level of uniformity and stability of air temperature field in test chamber is equal to liquid temperature field in the bath.
出处
《计测技术》
2012年第6期25-28,共4页
Metrology & Measurement Technology
关键词
温度场
空气介质
液体介质
恒温槽
测试腔
热交换管
temperature field
air medium
liquid medium
thermostatic bath
test chamber
heat-exchange tube
