Flow Measurement Method of Syngas Scrubbing System under Different Working Conditions
A technology for flow measurement and synthesis gas, which is used in mass flow measurement devices, liquid/fluid solids measurement, volume/mass flow caused by mechanical effects, etc. question
Active Publication Date: 2021-05-18
XINNENG ENERGY CO LTD
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[0003] Since the synthesis gas scrubbing system will have a variety of different working conditions during operation, and the composition of the synthesis gas is different under various working conditions, and the temperature and density of the synthesis gas of different components are different, so the throttling device The upper limit value of the differential pressure generated before and after will also be different. In the case that the flow scale of the differential pressure flowmeter remains unchanged, in order to ensure that the measured differential pressure value does not exceed the differential pressure range of the differential pressure flowmeter, and thus ensure that the measured The flow value is accurate and reliable. In the actual use process, when the working conditions change, it is necessary for the staff to arrive at the site and pass the Manually modify the differential pressure range of each differential pressure flowmeter. Due to the large number of differential pressure flowmeters on site, manually modifying the range is time-consuming, laborious, inefficient, and there are flow measurements caused by manual operation omissions and misoperations. inaccurate situation
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[0014] The flow measurement method of the syngas scrubbing system under different working conditions, firstly, according to the operation of the gas production device in the previous section, judge in real time which working condition the syngas scrubbing system is in; then select according to the working conditions of the syngas scrubbing system The corresponding computing module calculates the real-time flow data through the computing module through the collected operating current of the differential pressure flowmeter.
[0015] During the operation of the syngas scrubbing system, there will be four working conditions, and the four working conditions will be referred to as: working condition 1, working condition 2, working condition 3 and working condition 4; in this embodiment, the differential pressure flowmeter The model of the valve is FY-16003; the parameter indicators corresponding to the four working conditions can be found in the "Throttling Device Design Calculation ...
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The invention discloses a method for measuring the flow rate of a syngas scrubbing system under different working conditions. According to the working conditions of the syngas scrubbing system, a corresponding calculation module is selected, and the collected working current of a differential pressure flowmeter is passed through the computing module. Calculate real-time traffic data. The advantage is that when the operating conditions of the syngas scrubbing system change, the present invention can switch the working conditions of multiple differential pressure flowmeters with one key on the control interface, and then switch to the calculation module corresponding to the operating conditions , so as to achieve accurate flow measurement under different working conditions; it is not necessary to manually modify the differential pressure ranges of multiple differential pressure flowmeters on site one by one, which saves time and effort, improves work efficiency, and avoids manual operation. Inaccurate flow measurement caused by omissions and misoperations can ensure the safe and reliable operation of the syngas scrubbing system.
Description
Technical field: [0001] The invention relates to the field of syngas scrubbing, in particular to a flow measurement method of a syngas scrubbing system under different working conditions. Background technique: [0002] In the syngas scrubbing system, it is usually necessary to install a throttling device on the pipeline, and then use a differential pressure flowmeter to measure the differential pressure before and after the throttling device, and then obtain the flow rate of the syngas flowing through the pipeline. [0003] Since the synthesis gas scrubbing system will have a variety of different working conditions during operation, and the composition of the synthesis gas is different under various working conditions, and the temperature and density of the synthesis gas of different components are different, so the throttling device The upper limit value of the differential pressure generated before and after will also be different. In the case that the flow scale of the di...
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IPC IPC(8): G01F1/88
CPCC10K1/08G01F1/34G01F15/00
Inventor 郑天智
Owner XINNENG ENERGY CO LTD