As a production technology supervisor at an auto parts manufacturing plant, the metering accuracy of lubricating oil injection for engine blocks had long plagued me. The production line requires precise injection of synthetic lubricating oil into each cylinder block, with a single-unit injection error ≤±1%, while adapting to 24/7 continuous operation and tolerating trace impurities…
Our Story I’m Lin Feng, a facility manager for a large commercial complex. Last winter, our building’s central air conditioning system experienced frequent malfunctions, with significant temperature fluctuations in multiple zones, surging energy consumption, and numerous tenant complaints. After troubleshooting, we identified the root cause: unstable cooling water flow, which reduced heat exchange efficiency, caused…
Our Story As an experienced maintenance worker in a boiler plant, I’ve encountered numerous emergency shutdowns caused by flow instability. Last summer, the cooling system of Boiler No. 1 nearly led to a major accident. During a routine inspection, I noticed abnormal fluctuations in the cooling water flow, but the DCS screen showed everything was…
I am Li Ming, the technical supervisor of the filling workshop at Food Group. Last summer, all three of our beverage production lines experienced filling volume deviations due to mechanical water meter failures, resulting in an entire batch of products being rejected and losses exceeding 200,000 yuan. Root Causes of the Problem The original DN50…
Our Story I am a maintenance worker at a waterworks plant, responsible for handling various water supply issues. A few years ago, the plant frequently received complaints from users about sudden spikes in water bills or inconsistent water flow, which was frustrating for everyone. At the time, we were still using old mechanical water meters,…
1. Signal-related faults 1. Low signal strength or insufficient Q valueReasons: Improper installation position of the probe, insufficient coupling agent, scaling on the inner wall of the pipeline, or presence of bubbles Solution: Re-grind the pipeline to a Ra3.2μm finish, and evenly apply a special silicone grease coupling agentAdjust the probe to the 3/9 o’clock…
The faults of direct-reading remote water meters are primarily concentrated in three core modules: **mechanical metering anomalies** **photoelectric direct-reading failures** **data remote transmission interruptions** The root causes of these faults are often related to installation and operation, usage environment, and component wear and tear. Below, we categorize and organize the fault phenomena, common causes, and…
Hello everyone, today I’m here to talk about the installation requirements and precautions for oval gear flowmeters. I hope this information can be helpful to you when installing gear flowmeters in the future.Composition of elliptical gear flowmeter . An elliptical gear flowmeter consists of a metering tank, a pair of elliptical gears housed within the…
Direct-reading remote water meters and detachable Woltman-type water meters differ in application scenarios, functional characteristics, technical parameters, and other aspects. Direct-reading remote water meters are suitable for water metering in civil buildings, emphasizing remote data transmission and intelligent meter reading management; detachable Woltman-type water meters are mostly used in industrial and large-diameter pipeline scenarios, focusing…
Various general knowledge about fire protection flow switches has been covered in detail in the articles published last week. Next, let’s follow the engineers to the construction site and take a look at the on-site installation and commissioning of fire protection flow switches in practical operations. The picture below shows the engineers guiding the…
During long-term operation, faults of flow switches are mostly related to installation deviation, medium contamination, parameter drift, or component aging. The fault manifestations and troubleshooting methods vary slightly among different types of flow switches. Below are general common faults and corresponding classified troubleshooting measures. I. General Common Faults and Troubleshooting Methods Fault Phenomenon…