Online hydrogen gas conveying and packaging box 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: 2016-05-25
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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[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 discloses an online hydrogen gas conveying and packaging box filling automatic control system and method, and belongs to the technical field of hydrogen gas production. In order to solve the problems that only part of hydrogen gas produced by a hydrogen gas station is conveyed to a cold rolling production line, the rest hydrogen gas is exhausted normally, and the exhausting rate reaches up to 40%, the system is provided with a packaging box filling device on the basis of an existing hydrogen gas tank, a hydrogen gas conveying system is optimized, and online hydrogen gas conveying and full-automatic control of packaging box filling are achieved. The function of reasonably and efficiently distributing and conveying hydrogen gas according to the hydrogen gas production situation is achieved. According to the specific thought, firstly, a cold rolling hydrogen gas feeding pipeline adjusting valve is controlled, the pressure of fed cold rolling hydrogen gas is stabilized to be 0.6 MPa, and hydrogen for production is ensured; secondly, whether the pressure of a master hydrogen gas pipe is larger than 1.05 MPa or not is judged, and if yes, packaging box filling is allowed; otherwise, hydrogen gas cylinder filling is considered; the safety pressure of a spherical tank is 1.5 MPa, and when the pressure of hydrogen gas inside the spherical tank is larger than 1.5 MPa, spherical tank filling is forbidden. After the system is put into operation, the hydrogen gas utilization rate reaches 96% or above, and the good economic benefits and popularization application value are achieved.
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
CPCF17D3/01G05B19/0428Y02E60/34
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