For high-temperature wells with temperatures of 80-90 degrees and a depth of 30 meters, what type of level gauge is durable and accurate?

For high-temperature wells (80-90 degrees) at a depth of 30 meters, the level gauges suitable for use need to be able to withstand high temperatures and remain unaffected by steam or bubbles. Here are several liquid level measurement techniques and their associated devices that may be suitable for this application scenario: 1. Magnetic flap level gauge: A magnetic flap level gauge uses magnets built into the float to drive the flaps of an external display through magnetic coupling, thereby indicating the liquid level. They are highly suitable for applications involving high temperatures and pressures, but it is necessary to ensure that the float material can withstand water temperatures of 90 degrees. The magnetic flap level gauge is easy to install and does not require a power source. 2. Pressure/differential pressure level gauges: Pressure level gauges determine the liquid level by measuring the static pressure of the liquid. For high-temperature wells, specialized high-temperature sensors can be used; these sensors are typically made of stainless steel or other heat-resistant materials and come equipped with a dedicated cooling system. The differential pressure level gauge works in a similar way, but it measures the differential pressure caused by a water column. 3. Magnetostrictive level gauge: The magnetostrictive level gauge provides contactless level measurement, and its principle of operation is based on the time difference resulting from the magnetostrictive effect. Some high-temperature models can withstand temperatures of over 200 degrees Celsius, but it is necessary to carefully check the specifications when making a choice to ensure that it meets specific requirements. 4. High-temperature capacitive level gauge: A capacitive level gauge determines the liquid level by measuring changes in capacitance. Specific high-temperature capacitive level gauges can be used in environments with high temperatures, but it is necessary to verify the product’s operating temperature range to ensure suitability. For your application, taking the environmental conditions into account, I recommend considering magnetic flap level gauges and specially designed high-temperature pressure (or differential pressure) level gauges first. They are widely used in high-temperature, high-pressure, and harsh operating conditions, offering reliable accuracy and durability. When making a choice, factors such as the sensor’s protection rating, material, and whether it offers remote reading capabilities should also be taken into account. Before making a purchase, discuss your specific requirements in detail with the manufacturer or seller, and request relevant technical documents and case studies for reference. If possible, it is best to conduct on-site testing to verify the performance of the level gauge. .

It’s so deep; a floating buoy isn’t suitable either; let’s modify it and use radar instead.

This post was last edited by hanhaigang128 on 2023-11-16 at 21:17. A guided-wave radar level gauge could be considered; it’s of the loop type and isn’t affected by water vapor； Servo level gauges can also be considered, but their price is too high, so they are not suitable for purchase

A soft-cable guided radar should be very suitable

Immersion-type guided wave radar? Yours is too long; the magnetostrictive effect mentioned earlier generally works over a maximum distance of 25 meters, so the cable for servos is just too long. . . What about a laser level gauge? Consider it