Experts, please help analyze why the pressure gauge broke
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All the pressure gauges for the condenser circulating water on the fourth floor of the workshop (more than 10 of them) are broken! The normal pressure for circulating water is 0.2 MPa. Could it be that when the workshop starts up or shuts down, the circulating water pump stops working, causing water to flow back in the pipes and creating a negative pressure?
Water hammer may be generated when the pump is stopped, damaging the pressure gauge.
It could be caused by negative pressure. If the circulation water pump does not have a check valve, when the pump is stopped, both the supply pipe and the return pipe will start to fill with water at the same time, which can even lead to siphoning. The negative pressure that results in such situations can damage the pressure gauge.
The damage is still quite severe; judging from the condition of the bellows, it seems that a very high negative pressure was at work, so it’s necessary to thoroughly inspect the pump and valves.
Whatever, positive pressure or negative pressure – it might be the reactionaries causing trouble. . . Congratulations, congratulations to the pressure gauge – it was great while alive, glorious in death, and its body can even be used for your dissections. . . . . . :P
"The pump was turned off, causing water to flow back in the pipes"? ? ? The pump is turned off; why does the water in the pipeline flow back outside? What evil force is causing the water to flow in reverse? By looking at the Bourdon tube, how the backflow can be detected? Show a schematic diagram of how the pipeline circulates, and indicate the location where the pressure gauge is installed. . .
There are pressure gauges priced in the teens; are there any at 2,000 yuan? If so, then send me a big red envelope of 2000 yuan – I’ll give you a little trick that will ensure your meter doesn’t tick for 10,000 years. :P
Shouldn’t the circulating water pump be running continuously? Why is it turned off? Check whether the circulating water pump has stopped operating due to a fault, and then see if there are other issues
This is possible; it could be damaged at zero point or at full scale, with the pointer being deformed
This is possible; it could be damaged at zero point or at full scale, with the pointer being deformed