的安装其实要求并不高，比如它可以不用考虑流量计前直管道的长度，这个其他流量计是要求比较严格的。 The installation of elliptical gear flowmeters is actually not very demanding. For example, it does not need to consider the length of the straight pipe in front of the flowmeter. This other flowmeter is more stringent. The oval gear flow transmitter and the secondary instrument form an oval gear flow meter. When installing the transmitter, we need to carefully understand the impurities in the pipeline. If we consider that there may be impurities in the medium to be measured during use, a filter can be installed, which can extend the service life of the oval gear flowmeter and reduce the cost of routine maintenance. If the flowmeter is used in a relatively clean place, a stainless steel flowmeter can also be used. When installing, try to install it in a horizontal position. The transmitter should be installed at the output end of the pump to reduce measurement errors. If the measurement medium is mixed with gas, a gas separator should be installed.
As long as you pay attention to the above issues, there will generally not be any problems in use, and it can be used stably for more than five years. 主要有铸铁、铸钢、不锈钢几种材质可供不同场合需要。 Jinhu Dongxiang oval gear flowmeter mainly has cast iron, cast steel and stainless steel for different occasions.
由于属于比较精密的仪器，容易出问题的地方大多是在内部，因为内部有齿轮工作，齿轮对流动液体的清洁度有要求。 Oval gear flowmeters are relatively sophisticated instruments, and most of the problem-prone parts are inside, because there are gears inside, and the gears have requirements for the cleanliness of flowing liquids. It is easy to be stuck, and there are problems such as no display or large display fluctuation. Common faults and solutions are as follows:
1, the display on the display to maintain a certain value unchanged, troubleshooting methods: first determine whether the signal feedback system is a failure. Turn off the power and check whether the signal feedback loop is on and whether the voltage is normal. If the fault is not removed, you can clean the pipes and filters. If the filter or pipeline is damaged, the flow meter can be disassembled and inspected to remove impurities. When disassembling, remember the entry points of the upper and lower gears, and install them as they are. 2. The degree on the display is unstable and troubleshooting: check the flow display system for vibration; or turn the flowmeter gear by hand to see if the display reading changes. Generate a limited feedback signal. 3. When the flow is small, the error is relatively large, and the troubleshooting method may be that the gear sleeve is worn or corroded by the medium, and the flowmeter casing is deformed. At this time, you can generally hear a clicking noise when the flowmeter is working. 4. The error is very large or small, and the troubleshooting method: the reason is that the fluid may contain gas, or the zero signal voltage is abnormal. Need to stop the operation to recalibrate the flowmeter. 5. Liquid leakage and fault handling methods: If there is a leak, the fault must be caused by the aging of the seal ring. Just replace the seal ring.