Is the valve selected by the automation engineer?
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Hello, experts and masters! I believe everyone has been working in their respective positions for a very long time. Regarding the issues related to the Cultural Revolution, and the selection of control valves and on-off valves in industrial control systems, does this fall within the responsibilities of electrical and automation engineers? ? In the company we worked at before, it was organized this way: pumps and valves fell under the responsibility of the process engineers, who were responsible for selecting and determining the appropriate models. The electrical control parameters related to pumps and valves were determined by the electrical automation engineers. For example, details such as the flow rate, pressure, and material of pumps were decided by the process or equipment engineers, while the parameters of the motors used with them were determined by the electrical automation engineers ； Valves that are not energized, such as self-acting control valves and manual valves, are selected based on process requirements. Energized control valves, pneumatic valves, solenoid valve switches, electric valves, and the like are chosen by process or equipment engineers, while the associated electrical parameters are determined or configured by electrical automation engineers. I wonder how other colleagues in their respective organizations define this scope of work! !
Uhhhh, every company is different~~
The instrument engineers at your company must have it easy:D
. In departments with a dedicated automation specialty, control valves are under the responsibility of that specialty； When there is no dedicated automation specialty, control valves are assigned to either the process or electrical departments. .
The selection of valves such as control valves, on-off valves, and solenoid valves in industrial control systems falls within the scope of responsibilities of the automation control specialty.
The industries are different. In the chemical industry, HGT20636.2 stipulates that data sheets for control valves should be prepared by the instrumentation and control department; in practice, however, many design firms have the instrumentation and control department responsible for selecting all electric and pneumatic valves. In the power industry, the thermal instrumentation specialty never selects valves.
Whoever has a higher salary and more bonuses will do it; after all, the design institute backs it.
On the sixth floor as well, valves with control and adjustment functions are under the responsibility of the automation department; the process engineering team only needs to provide a parameter sheet specifying parameters such as the diameter and the pressures before and after the valve.
Yes, the process provides parameters (diameter, material, temperature, pressure before and after the valve, flange type), and the instruments use these parameters to help the valve manufacturer select the appropriate valve
Several colleagues said that automatic valves should be selected by the instrumentation or automation team, and I have no doubts about this. Those on the higher floors mentioned that the process engineering department needs to provide parameters such as diameter, material, temperature, upstream and downstream pressures, and flange specifications; these parameters fall under the category of process or mechanical parameters. So, the process engineering department should provide some of these process parameters, while the instrumentation and control team should fill in the instrumentation-related parameters. However, the overall coordination should still be carried out by the instrumentation and control team