Application of flow meter in Shenzhen Water Group

Abstract: The application information of flow meter in Shenzhen Water Group is provided by excellent flow meter and flow meter manufacturers. Shenzhen Water Group currently has 5 water supply plants and 3 raw water pump stations, with a total water supply capacity of 1.675 million cubic meters per day. There are 4 sewage plants with a sewage treatment capacity of 1.025 million cubic meters per day. The flowmeters in use are mainly electromagnetic flowmeters, with a total of about 130 units, of which DN40. For more flowmeter manufacturers to select models and price quotations, you are welcome to inquire. The following are the details of the application of flowmeters in Shenzhen Water Group. Shenzhen Water Group currently has 5 water supply plants and 3 raw water pump stations, with a total water supply capacity of 1.675 million cubic meters per day. There are 4 sewage plants with a sewage treatment capacity of 1.025 million cubic meters per day. The flowmeters in use are mainly electromagnetic flowmeters, with a total of about 130 sets, including 75 sets above DN400 and 55 sets below DN400. The maximum diameter is DN2400, which is used for the measurement of raw water, and the minimum diameter is DN25 for the metering of medicines. In addition, there are a small number of ultrasonic flowmeters and turbine flowmeters. Because electromagnetic flowmeter has the advantages of high measurement accuracy, good stability, and no external interference, it has always been the first flowmeter selected by our company, especially in water supply plants, which are basically electromagnetic flowmeters. The application of electromagnetic flowmeters in our company can be roughly divided into three stages. The first stage is mainly imported electromagnetic flowmeters based on ABB-KENT. There are about a dozen sets, basically all of which are located in Donghu Water Plant in the early 1980s. Started to use, there are still a few in use, and the rest have been discontinued due to renovation. The quality of these imported flowmeters is very good, basically no maintenance, and their accuracy and stability are very good after more than ten years of use. For this reason, electromagnetic flowmeters have always been favored in the future flowmeter selection. The second stage is represented by the B series electromagnetic flowmeter of Kaifeng Instrument Factory. In the early and mid-1990s, this type of flowmeter was basically used. This kind of flowmeter was produced by Kaifeng Instrument Factory with the introduction of ABB-KENT technology. Compared with the original imported ABB-KENT electromagnetic flowmeter, the technical performance is not much different, but the price is much lower, so it has been widely used. The third stage was in the mid-to-late 1990s, with the launch of the M900 series electromagnetic flowmeter jointly produced by Shanghai Guanghua-Almet and Cologne, Germany and the E-mag electromagnetic flowmeter introduced by Kaifeng Instrument Factory with the latest technology of ABB-KENT , become the main application product in the third stage. Such products have been greatly improved in quality, technology and function, and basically no problems have occurred in practical applications. In the application of the flowmeter, we pay great attention to the following aspects: 1. Pay great attention to the selection, installation conditions and installation and debugging process of the flowmeter. The selection of flowmeter is very important. Improper selection will bring inconvenience to future use, and even cannot measure normally. For example, in the early stage of the construction of Bijiashan Water Plant, the time difference ultrasonic flowmeter with standard short pipe from Cologne, Germany was used as the water flow meter of the pump room. Can not work properly, as a last resort, and replaced it with an electromagnetic flowmeter. Another example is the flowmeter used for sludge measurement in sewage plants. Many electromagnetic flowmeters with scrapers are used. From the current application effect, since the sludge contains a large number of solid particles, the electrodes and linings of the sensor are seriously worn, and the scraper cannot be used at all. To the effect, the flowmeter works very unsatisfactorily, and the measurement error is too large. Therefore, in addition to the performance of a general flow meter, the flow meter used for sewage metering should also consider its wear resistance and the influence of solid particles. Installation conditions also have a great impact on the use of flowmeters. In this regard, flowmeter manufacturers also attach great importance to them and have clear requirements for on-site installation conditions. However, in practical applications, because the on-site installation conditions cannot meet the requirements, the flowmeter Things that don't work are always there. Frequent problems include: the valve or elbow is too close to the flowmeter, the required straight pipe section is not enough, the flowmeter pipe section cannot be filled with water, etc. These situations have occurred in our company, and a lot of money has been spent on renovation. In fact these problems can be avoided by improving the designer's understanding of the flowmeter and enhancing design review. Strengthening the management and supervision of the installation and commissioning process and selecting a professional installation team play an important role in the normal use of the flowmeter. We have encountered such a situation. One of the factory water electromagnetic flowmeters in Meilin Water Plant is unstable when it rains. At first, we suspected that it was caused by the water entering the sensor, but we could not find any problems after inspection. On the cable, we dug out more than 100 meters of cable and saw that there were connectors everywhere. The connectors were very serious and very good, but the installer did not know that it was these connectors that were not connected according to the specifications. The flowmeter is not functioning properly. Later, the cable was replaced, and a professional was found for joint processing.No more problems with the flow meter. In addition, problems such as incorrect initial data setting, wrong wiring, and unreliable grounding often occur in the process of installation and debugging, resulting in the flowmeter not working properly. We need to strengthen supervision and management. 2. Pay attention to solving the interference problem in the application process of the flowmeter. In practical applications, we found that there are several interference issues that must be addressed.

Beijing Sincerity Automatic Equipment Co., Ltd is a company that offers a wide selection of . OEM and ODM services are also available to users. To know more, go to Sincerity Flow Meter.

Beijing Sincerity Automatic Equipment Co., Ltd is committed to attracting, developing, and keeping a diverse work force that reflects the nature of our global business.

Beijing Sincerity Automatic Equipment Co., Ltd has never conceded on the quality and the services of the products which provided to the customer.

Beijing Sincerity Automatic Equipment Co., Ltd's core technology of mass flow meter enables us to understand and utilize in a right way.