Groundwater monitoring and protection device, groundwater well cover

Description :

Overview:

　　In recent years, the unreasonable development and utilization of groundwater in some areas have greatly changed the natural occurrence of groundwater, causing a series of geological and ecological problems such as continuous decline of groundwater level, ground subsidence, water pollution, etc., which have become important issues affecting national production and life safety, and the harmonious development of ecological environment, restricting the rapid and stable development of local social economy. Groundwater monitoring is an important foundational work in water resource management. With the development of the economy and society, as well as the continuous changes in climate change and water resource conditions, countries, provinces, and cities are paying more attention to the monitoring of groundwater resources.

　　Therefore, accurate development and protection of groundwater must rely on long-term groundwater monitoring and timely grasp of dynamic changes. This requires the establishment of an automatic groundwater monitoring system.

　　The groundwater monitoring wellhead protection device designed by our company is a specialized device for automatic groundwater monitoring systems. It is a facility or device installed at or near the wellhead of a monitoring well to protect the monitoring well and automatic monitoring equipment, mainly including protective tubes, cover plates, locks, identification signs, etc

According to the standard:

　　GB/T 700 Carbon Cable Structural Steel

　　GB/T 13384 General Technical Conditions for Packaging of Mechanical and Electrical Products

　　GB/T 17395 Seamless Steel Pipe

　　GB/T 28699 General Technical Conditions for Protective Coating of Steel Structures

　　GB 50010 Code for Design of Concrete Structures

　　GB 50666 Code for Construction of Concrete Structures

　　GB/T 51040 Technical Specification for Groundwater Monitoring Engineering

　　DB41/T 1850-2019 Technical Specification for Construction and Acceptance of Groundwater Monitoring Stations

Device features:

　　1： Designed for a lifespan of 100 years, it is sturdy, aesthetically pleasing, and durable;

　　2： Under windward, moisture-proof, rainproof and waterproof conditions, it does not affect the communication signal of the automation equipment in the well;

　　3： Good anti-theft performance, using specialized ones;

　　4： The cover plate has good activity performance, which is convenient for monitoring equipment installation, monitoring well operation and maintenance, and water sample collection;

　　5： Patent technology, well handled details;

　　6： Comply with the requirements of the Ministry of Water Resources, Ministry of Natural Resources, and Ministry of Environmental Protection for wellhead protection devices;

Device specifications:

　　The specifications of this device are as follows: Material: Q235 A3 steel. The diameter of the tube is 350 mm, the height is 500 mm, and the wall thickness is 10 mm (please specify when ordering other specifications). Hooks are welded inside the tube, and tube ears are installed outside the tube. The cover plate is locked, and there is a water vapor vent hole in the tube; The cover plate is 10 mm thick and has a diameter larger than the wellbore diameter. A circular hole of about 200 mm is opened in the center of the cover plate, and a non-metallic material with a thickness of 8-10 mm is firmly installed and sealed. The cover plate (above the lock) is equipped with a movable handle; There is a cushion plate (tray) inside the wellbore, with a circular hole of about 45mm in the center of the cushion plate (the cushion plate is a movable tray installed inside the pipe and covered above the wellhead, used to cushion monitoring instruments and prevent monitoring instruments and other objects from falling into the wellbore);

　　In addition, there is a 400MM * 250mm non-magnetic steel material identification plate on the outside of the tube.

Device installation:

　　1. A cement base is built on the part of the well casing that is higher than the ground as a well platform, and fixed points are set at the wellhead. Monitoring equipment can be placed on the platform. The well platform is designed as a cylindrical concrete platform, with a height generally ranging from 0.3-0.5m depending on the height of the well pipe above the ground. Iron components are pre embedded next to the wellhead as fixed point elevations, and there should be installation instrument markings on the well platform. The wellhead has an iron cover. The specific size of the well platform can be determined based on the size of the well room and protective facilities. The typical design of the well platform is shown in the following figure.

　　Typical Design Diagram of Well Platform

　　2. Insert the footrest and chassis of the instrument protection box into the cement base, ensuring that the chassis is as level and straight as possible to maintain cleanliness. After the cement base solidifies and sets, fix the wellhead protection device on the tripod with nuts. The wellhead protection device has a height of over 400mm, a diameter of over 350mm, a thickness of not less than 10mm, and is equipped with hooks or trays inside the device; The nylon board embedded in the box cover can ensure signal transmission; The instrument protection box is equipped with breathable holes to reduce the humidity of the air inside the box; There is a sturdy locking device designed on the box cover, which requires specialized tools to open the wellhead cap.

　　3. Spray paint around the cement base and fix the identification plate on the wellhead protection device.

AfterSalesService :

• Groundwater monitoring and protection device