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    Home > Chemicals Industry > China Chemical > It is imperative to control waterlogging with rainwater flowmeters to help

    It is imperative to control waterlogging with rainwater flowmeters to help

    • Last Update: 2022-03-15
    • Source: Internet
    • Author: User
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    [ Focus on Chemical Machinery Equipment Network ] With the acceleration of urbanization, the area of ​​hardened ground has also expanded sharply.
    The construction of urban drainage systems in some cities cannot keep up with the pace of urban development.
    There are many historical debts and there are problems in the drainage network Problems such as perfection, low drainage standards in the old city, serious siltation of some pipes and channels, and insufficient flood discharge and drainage capacity.

     
    Chemical machinery and equipment network hotspots pay attention to chemical machinery and equipment
    In addition, the editor has learned that the main reasons for urban waterlogging are the following: lack of scientific and comprehensive planning for waterlogging prevention, planning and construction are out of touch, the downstream drainage outlets of some urban rainwater drainage systems have not been completed at the same time, and the rainwater outlet system is not perfect; the old urban area The pipe diameter of the pipe network is small and generally fails to meet the drainage requirements of heavy rainfall; the pipes are corroded, rotten, invaded by tree roots, and blocked by garbage mud; insufficient number of gutters, drains are artificially blocked, and the pipes and canals are not cleared in time.
    As a result, different degrees of waterlogging occur every time the urban area encounters heavy rainfall.

     

    Urban waterlogging has many hazards.
    First of all, urban waterlogging will have a *impact on traffic safety.
    * The important design points of our current road drainage system are: rapid drainage and no accumulation of water.
    It can be seen how large the hidden danger of waterlogging brings to urban safety.

     

    Secondly, urban waterlogging can cause serious economic losses, including damage caused by water accumulation in houses, property losses caused by water ingress, impact of traffic paralysis on the logistics industry, losses caused by suspension of construction sites, and so on.

     

    In addition, urban waterlogging will have a great impact on urban sanitation, resulting in combined overflow pollution, and foul odor caused by long-term soaking of garbage, which will have a very large impact on surrounding water bodies.
    Urban waterlogging damages the surrounding ecosystems very seriously.
    The city itself is in a system with extremely fragile ecological environment, and the flooding conditions of the city will have a serious impact on the growth of animals and plants.

     

      Therefore, it is imperative to control waterlogging, and the rainwater flowmeter will help.

     
    Flowmeter
      In order to make the precipitation more accurate and comparative, the meteorological observation specifications stipulate that: precipitation refers to the liquid or solid (after melting) precipitation that falls from the sky to the ground, which is not evaporated, infiltrated, or lost.
    The depth of accumulation on a horizontal surface.
    The amount of precipitation is measured in millimeters.
    The basic instrument for measuring precipitation is a rain gauge
     

      The rain gauge can monitor the rainfall situation in real time, which is a necessary means to grasp the status of the flood area, to warn of safety accidents, and to assist in the fight against floods.

     

      In addition, the gutter flow meter can measure rainwater flow and monitor rainwater quality, which is the technical basis for rainwater control and utilization.
    The gutter flow meter is an important part of the construction of the drainage pipe network monitoring system.
    It can be used to know whether there is water on the road, whether the drainage is normal, whether the pipeline is blocked, etc.
    , and play a positive role in the management of the urban drainage pipe network.
    .
    The gully flowmeter is based on the principle of fluid dynamics and the law that the jet impact force is proportional to the flow rate, and the gully flow rate can be calculated by measuring the impact force of the water flow falling into the gully.

     

      How to measure the small flow of rainwater is a major technical problem in rainwater measurement.
    Through the narrow design of the opening under the curved weir, the small flow weir flow meter can obtain large water level data even under small flow rain water, realizing effective measurement of initial rainwater.
    When the rainwater flow is large, the opening of the small flow weir flow meter will quickly widen to ensure smooth drainage.

     

      Original title: Waterlogging control is imperative, rainwater flowmeter to help
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