Hydrogen online delivery and container filling automatic control system and method
An automatic control system and containerized technology, applied in general control systems, control/regulation systems, pipeline systems, etc., can solve the problems of limited energy storage in hydrogen tanks and high hydrogen release rate, to ensure rationalization, avoid a lot of waste, Considerable economic effect
Active Publication Date: 2017-11-03
BEIJING SHOUGANG AUTOMATION INFORMATION TECH
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Problems solved by technology
The production capacity of the hydrogen production station is about 400Nm3 / h, and the consumption of the main cold rolling line is usually 200Nm3 / h. However, the energy storage capacity of the original hydrogen tank is very limited, so the hydrogen release rate during production is as high as 40%.
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Embodiment Construction
[0019] The invention relates to: a power supply module, a central processing unit, an analog input device (AI), an analog output device (AO), a safety barrier, a pressure transmitter, a pressure regulating valve and the like. The PLC system collects the on-site pressure value, and realizes the adjustment and control of the pressure of the cold-rolled hydrogen pipeline, the filling pressure of the container and the filling pressure of the spherical tank through the on-site regulating valve.
[0020] The specific implementation is divided into two parts: hardware debugging and online debugging of control program.
[0021] 1. Hardware debugging
[0022] Hardware debugging is mainly to check and adjust the field equipment.
[0023] (1) Check whether the display of the on-site pressure transmitter is correct and whether the loop signal is correct. Test whether the switches of each pressure regulating valve are in place, and whether the displayed position is accurate.
[0024] 2....
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The invention relates to an automatic control system and method for hydrogen on-line transmission and container filling, belonging to the technical field of hydrogen production. The system aims at the problem that only part of the hydrogen produced by the hydrogen station is transported to the cold rolling production line, and the rest is usually vented, with a release rate as high as 40%. On the basis of the original hydrogen tank, the system optimizes hydrogen transport by configuring container filling equipment The system realizes the automatic control of hydrogen online delivery and filling container. The specific idea is: firstly control the regulating valve of the hydrogen delivery pipeline for cold rolling to stabilize the pressure of hydrogen delivery to cold rolling at 0.6MPa to ensure hydrogen for production; secondly judge whether the pressure of the hydrogen main pipe is greater than 1.05MPa, and if so, allow the container to be filled; Otherwise, consider filling the hydrogen tank; the safe pressure of the spherical tank is 1.5MPa. When the hydrogen pressure in the spherical tank is greater than 1.5MPa, it is forbidden to fill the spherical tank. After the system is put into operation, the hydrogen utilization rate can reach more than 96%, which has good economic benefits and popularization and application value.
Description
technical field [0001] The invention belongs to the technical field of hydrogen production. By optimizing the hydrogen on-line delivery system and adding an automatic control system for container filling, the release of hydrogen in the production process is effectively reduced, energy waste is avoided, economic benefits are improved, and it can be widely used. in the gas output system. Background technique [0002] The supporting design of Shougang 1850 cold-rolled strip steel project is equipped with a hydrogen station. Part of the gas produced by the hydrogen station is sent online to the cold-rolled strip continuous annealing line and galvanizing line as an annealing protective gas, and the rest is released into the air. In actual production, according to the amount of hydrogen used in the cold rolling main line, an appropriate amount of hydrogen is transported and released. The production capacity of the hydrogen production station is about 400Nm3 / h, and the consumption...
Claims
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IPC IPC(8): F17D3/01G05B19/042
CPCY02E60/34
Inventor 王广利祖双庆白志华陈思骏金洪军贾鹏徐锦垒畅晓光
Owner BEIJING SHOUGANG AUTOMATION INFORMATION TECH