Constant-temperature device keeping state of gaseous samples to be tested stable in washing process
A constant temperature device and sample technology, applied in the preparation of test samples, etc., can solve problems such as blockage of gaseous sample transmission pipelines, distortion of process analysis results, and small temperature tracing effect, so as to save manpower maintenance costs and parts maintenance costs , The effect of saving labor costs
Active Publication Date: 2013-12-04
CHINA PETROLEUM & CHEM CORP +1
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Problems solved by technology
[0005] Second, when the heating temperature in the incubator rises to the temperature at which the self-polymerizing components start to self-polymerize, the continuous accumulation of self-polymers will block the gaseous sample transmission pipeline, resulting in interruption of process analysis
[0006] The third is that the heating temperature in the insulated box has little heating effect on the temperature of the gaseous sample washing process in the washing tank. The washing process of the gaseous sample is carried out at the supply temperature of the washing water, and the high boiling point components in the gaseous sample are condensed in the washing process. water, causing distortion of process analysis results
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[0025] like figure 1 As shown, according to the determined wash water and tank temperature values, select and adjust the set values of the wash water heating steam self-operated regulating valve 4 and the tank heating steam self-operated regulating valve 8 .
[0026] Washing water flow meter 1 is set on washing water inlet pipeline 14, washing water heating steam self-operated regulating valve 4 is set on washing water heating steam inlet pipeline 16, and the washing water and washing water heating steam complete heat exchange in washing water steam heating device 3 , the heated washing water enters the washing pool 6, and the temperature of the washing water in the washing pool 6 automatically adjusts the opening degree of the washing water heating steam self-operated regulating valve 4 through the temperature measured by the washing water heating steam self-operated regulating valve temperature package, so that The washing water reaches the required constant temperature, a...
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Provided is a constant-temperature device keeping state of gaseous samples to be tested stable in washing process. The device is composed of three parts: a washing water pipeline is arranged in a steam pipeline and then is wound to be disk-like. Washing water heated. The heated washing water enters into a washing tank. A self-operated temperature regulating valve is arranged on the washing water heating steam pipeline. A temperature bag is arranged in the washing water in the washing tank to adjust the temperature of the washing water. The above two devices are arranged in a heat insulated box body. In addition, A steam heating disk pipe, a self-operated temperature regulating valve, a temperature bag of the self-operated temperature regulating valve are arranged in the heat insulated box. The temperature of the heat insulated box body and the temperature of the washing water in the washing tank are controlled to be the same. The constant-temperature device always keeps the temperature of the gaseous samples at the setting temperature + / -5 DEG C in the washing process and in a sample transmission pipelines before and after washing. The gaseous samples do not condense or self-aggregate before and after washing. The component contents of the gaseous samples into an analysis meter are as same as the component contents in a process device.
Description
technical field [0001] The invention relates to a constant temperature device for keeping the state of the gaseous sample under test stable during the water washing process. Specifically, it relates to a gas sample containing high-temperature self-polymerization, low-temperature condensation, harmful to analytical instruments and easily soluble in water in the petrochemical production process. A constant temperature device that keeps the gaseous sample in a stable state during the test. Background technique [0002] In the prior art, a typical heating and temperature control method in the gaseous sample washing process is mainly composed of a steam flow regulating valve, a steam heating coil, and an insulated box. By adjusting the steam flow regulating valve, the amount of steam passing through the steam heating coil is adjusted to heat the temperature inside the heat preservation box and complete the heat tracing of the washing pool. [0003] The problem that prior art exi...
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IPC IPC(8): G01N1/34
Inventor 王长军李鹏飞钱夕坤何定君李弢钱宁纪存良李跃明
Owner CHINA PETROLEUM & CHEM CORP