自动化无级调节混合配气装置
一、工作原理；
本装置是氢气通过质量流量控制器调节与氮气混合，获得稳定的具有一定比例的氢氮混合气。在按需调整。
二、设备主要组成及功能；
1 质量流量控制器,
2 氢分仪；。
3 智能显示调节仪。
4 混合罐；
5 配比流量计；
6 防爆压力控制器,.
7 压力控制器,
三、工艺流程；
以图所示(见流程图)，原氢经氢进口阀，质量流量控制器调节加入氮气中，混合气经混合罐混合，混合后的混合气经氢分仪分析，显示出氢的百分比含量，氢分仪把氢的百分比含量转换成电信号，智能显示调节仪把氢分仪的电流信号与设定值相比较计算，计算结果转换成电信号驱动质量流量控制器，从而达到调节气体混合比例的功能.稳定的混合气通过工作出口阀送到使用地点.用气设备的流量变化时,调节质量流量控制器,改变氢气流量,是混合气的流量随之改变.保证混合气的压力在一定范围内.
Automated stepless adjustment with gas mixing device
First, the working principle;
This device is hydrogen by mass flow controller regulates mixed with nitrogen, hydrogen and nitrogen stable mixture having a certain percentage. On-demand adjustment.
Second, the major equipment components and functions;
A mass flow controller,
2 hydrogen partial instrument;.
3 smart display regulator.
4 mixing tank;
5 ratio meter;
6 explosion-proof pressure controller.
7 pressure controller,
Third, the process;
In Fig. (See flowchart), the original hydrogen through the hydrogen inlet valve, a mass flow controller regulates the introduction of nitrogen, a gas mixture through the mixing tank mix, the mixture was analyzed by the hydrogen partial mixed, showing the percentage of hydrogen content , the percentage of the hydrogen partial hydrogen content analyzer into an electrical signal, the intelligent display regulator hydrogen iNSTRUMENT current signal is compared with a set value calculation, the calculation result is converted into an electric signal and the mass flow controllers, so as to regulate the gas mixture proportional function stable gas mixture to the point of use through the work of the outlet valve when the gas flow rate change with a device to adjust the mass flow controllers, changing the hydrogen flow is the flow of the mixture changes. ensure that the pressure in the gas mixture within a certain range
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