Guizhou Bureau of Geology and Minerals Brine Well Corrosion Prevention Deep Well Water Level Monitoring

Case Description

I. Specific Requirements

Requisition Unit: Guizhou Provincial Bureau of Geology and Mineral Resources

Operating Environment: 3 salt extraction wells, 300 meters deep. The medium is brine and other corrosive media. Various products of different principles have been used before, and they basically fail to work normally within 2-3 months. A highly corrosion-resistant and high-performance product is required.
Monitoring Requirements: Long-term automated monitoring to improve office efficiency and reduce labor input;
Ensure data accuracy, timeliness, and effectiveness;
Ensure long-term operation in a strong corrosive environment 300 meters underwater.

II. Operating Condition Assessment:

In view of the above comparisons, Wanhe Instrument engineers have provided a new design:
New WH312 Deep Well Corrosion-Resistant Level Sensor：
1. Material: For deep wells with more than 300 meters of saltwater brine, a titanium alloy sensor is used. The titanium alloy shell solves the sealing problem at 300 meters underwater, and the outer layer is wrapped with polytetrafluoroethylene material to solve the corrosion prevention problem;
2. The WH312 deep well corrosion-resistant special sensor probe adopts an all-welded integral structure design, ensuring normal operation at 1000 meters underwater and passing a 20MPa waterproof test (equivalent to 2000 meters underwater waterproofing);
3. The signal transmission uses a corrosion-resistant polytetrafluoroethylene cable (during placement, pay attention to protecting the cable), ensuring real-time, high-precision, and stable output of the measurement signal;

III. Scheme Design Diagram and Installation Instructions

Installation Steps:
1. Place the deep well corrosion-resistant level probe WH312 directly at the bottom of the 300-meter deep well. During placement, it can go down with the deep well pump (usually, the level probe is placed 3-5 meters above the deep well pump). During the descent, the polytetrafluoroethylene steel wire cable must be protected (if the cable is damaged, there will be no output signal).

2. Connect the red wire of the WH312 deep well level probe to terminal 16, the green wire to terminal 14, and terminals 23 and 24 to a 220V power supply (a 24V power supply model is also available, using battery power). Then the display will show the current real-time depth of the deep well liquid level. It has built-in high and low level alarms, and the normally closed point of the low level alarm can be connected to the intermediate relay of the deep well pump to form a loop, which can achieve the function of stopping the pump at low level, protect the deep well pump, and prevent idling and dry burning.

IV. On-site Construction Drawings

V. Product Photos

VI. Product Certification (For detailed certification information, please visit: www.whsensors.com)

1. China Certification and Inspection Group Inspection Report
2. CE FCC Certification
3. RoHS Certification
4. Intertek SGS Third-Party Calibration Certificate
5. Shenzhen Metrology Institute 0.25-grade Inspection Certificate

VII. Product List