Extreme weather will occur frequently in China in 2022. First, the extreme high temperature weather in summer broke the record of high temperature in China since 1961. Immediately after the beginning of October, the nationwide temperature dropped precipitously. The culprit behind all this is the first three peak La Nina event of this century warned by the World Meteorological Organization not long ago - "How hot this summer, how cold this winter". This means that this year's water meter anti freezing test will be particularly severe.
High Cost and Low Efficiency -- Limitations of Traditional Anti freezing
For the water meter in use, the traditional cold proof and antifreeze measures can be simply summarized into two categories. One is "thermal insulation method", which is to ensure the ambient temperature of water meter installation by applying thermal insulation measures to the water meter, such as wrapping and covering with thermal insulation materials, and closing nearby doors and windows; The other is to purchase "antifreeze water meter", which relies on its own performance to prevent freezing. However, both antifreeze methods have limitations.
"Warm keeping method" -- high cost caused by blind antifreeze
The biggest limitation of using warm keeping methods such as "wear clothes and hats" and "close the door to protect against cold" is that users cannot accurately judge which water meters really need to be protected against cold. They often have to take antifreeze measures against 100% of the water meters for less than 10% of the water meters that may freeze, causing the water company to pay a lot of unnecessary costs.
"Anti freezing water meter" -- measurement risk can not be ignored
The so-called "antifreeze water meter" refers to the use of materials with better scalability to manufacture the water meter, thereby fighting against the expansion force of water flow in the meter after freezing. With the advantage of materials, even if the "antifreeze water meter" is completely frozen, it will not be cracked like the ordinary water meter. However, in the long run, such water meters are likely to bring greater measurement risks to the water company.
After the "antifreeze water meter" is frozen, although it will not break, the internal mechanical mechanism will lose its original measurement accuracy due to the influence of thermal expansion and cold contraction, and it is not easy to be detected by the water company. In the long run, it will bring metering risks that cannot be ignored to the water company, laying hidden dangers for reducing the production and marketing gap and avoiding water disputes. In addition, the "antifreeze water meter" is expensive compared with ordinary water meters, and the high purchase cost is also one of the reasons why people are discouraged.
The key is to master the ambient temperature of water meter installation
If you want to truly solve the problem of cold and frost protection of water meters, the key lies in whether you can accurately grasp the installation environment temperature of water meters. In practice, we found that even if two water meters are located in similar positions, their installation ambient temperatures are slightly different. Like two water meters installed on the same terrace, meter A often freezes in winter, while meter B is almost free from freezing. After investigation, it was found that water meter A was installed on the northwest wind surface, and the installation ambient temperature was much lower than that of meter B. In the past, only after the water meters were frozen, could the water company discover the subtle difference of the ambient temperature between the water meters. If you can accurately master the installation environment temperature of each water meter, the antifreeze cost of meter B can be saved!
A new dimension of water meter perception - Hang Shui helps you prevent freezing accurately
Hangzhou Water Meter Co., Ltd. innovatively designed the temperature sensor into the water meter on the basis of the flow metering function of the Internet of Things water meter, so that the product has the ability to perceive the environmental temperature. Using the existing network of the Internet of Things water meter, it regularly monitors the environmental temperature every day, so that the water company can timely grasp the dynamic data of temperature changes, providing three advantages for the antifreeze operation of the water meter:
1. Anti freezing precise positioning of water meter
After deploying Hangzhou Water IoT water meters, the water company can accurately determine which buildings and which corridors have relatively low ambient temperature for water meter installation. If the temperature is lower than the early warning threshold, the system will automatically alarm to remind the construction personnel to take anti freezing protection measures in time.
2. Big data aided antifreeze decision
Users can accurately assess the risk of freezing and leakage of water meters in different regions through data precipitation over the years and big data analysis, and deploy antifreeze measures in advance in combination with weather forecast, so that water meters are not afraid of extreme weather.
3. Purchasing at par eliminates cost concerns
While Hangzhou Water IoT water meters add temperature perception, the purchase price remains unchanged compared with previous products of Hangzhou Water, completely eliminating the cost concerns of large-scale procurement and deployment of water companies, and it is an ideal product for precise antifreeze of water companies.
▲ The installation ambient temperature of water meters can be accurately captured through Hangzhou Water Smart Water Affairs Platform.
In 2022, the rare three peaks La Nina will attack. This winter is a big probability event, and the water meter anti freezing test is imminent! Hang Shui IoT water meter, with its newly added temperature sensing function, helps to make antifreeze decisions, providing a new choice for water companies to pass the antifreeze test safely and move towards accurate antifreeze in an all-round way.
