Multi-sensor water content detector

By combining a multi-sensor detector with conductivity correction and capacitance sensing probes, the problem of insufficient detection accuracy of existing devices under different operating conditions has been solved, and high-precision crude oil water content detection has been achieved.

CN224137224UActive Publication Date: 2026-04-17HEFEI JINGTE INSTR
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HEFEI JINGTE INSTR
Filing Date
2025-05-12
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

Existing crude oil water content detection devices are not adaptable to various oil well conditions and their detection accuracy needs to be improved. In particular, the conductivity method is greatly affected by changes in electrolyte concentration in the water, and the capacitance method has reduced resolution at high water content.

Method used

A multi-sensor detector is used, combining a conductivity sensor probe, a conductivity correction probe, and a capacitance sensor probe. The conductivity correction probe balances the ion concentration, and the capacitance sensor probe performs comprehensive calculations to obtain high-precision moisture content detection results.

Benefits of technology

It enables high-precision crude oil water content detection under different working conditions, improving the adaptability and accuracy of the detection device.

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Abstract

The utility model relates to the technical field of crude oil moisture content detection, and discloses a multi-sensor moisture content detector which comprises a shell, three measuring cavities are arranged in an inner cavity of the shell, and a conductivity sensing probe, a conductivity correction probe and a capacitance sensing probe are sequentially and fixedly arranged in the measuring cavities anticlockwise. A liquid inlet pipe and a liquid outlet pipe are arranged on the two sides of the shell in a communicating mode respectively, a meter head is detachably connected to the middle of the shell, a processing unit and a display screen are installed on the meter head, and crude oil flows through the conductivity sensing probe, the conductivity correction probe and the capacitance sensing probe. According to the utility model, the conductivity detection method and the capacitance detection method are combined, the conductivity detection of the crude oil is matched for calibration, the moisture content of the crude oil is obtained through comprehensive calculation, the high-precision detection of the moisture content of the crude oil is completed, and the detection requirements under different working conditions are met.
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Description

Technical Field

[0001] This utility model relates to the field of crude oil water content detection technology, specifically a multi-sensor water content detector. Background Technology

[0002] Existing crude oil water content detection devices are limited by their operating principles and lack adaptability to various oil well conditions. Among them, the conductivity method is greatly affected by changes in the concentration of electrolytes in the water and is prone to drift. The capacitance method is easily affected by free water masses at high water content, resulting in reduced resolution and affecting the accuracy of actual crude oil water content detection. Utility Model Content

[0003] (a) Technical problems to be solved

[0004] To address the shortcomings of existing technologies, this utility model provides a multi-sensor water content detector, which solves the problems of existing crude oil water content detection devices being limited by their operating principles, having insufficient adaptability to various oil well conditions, and having insufficient accuracy in detecting water content.

[0005] (II) Technical Solution

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A multi-sensor moisture content detector includes a housing with three measuring chambers arranged inside. A conductivity sensor probe, a conductivity correction probe, and a capacitance sensor probe are fixedly installed counterclockwise in each measuring chamber. An inlet pipe and an outlet pipe are respectively connected to both sides of the housing. A meter head is detachably connected to the middle of the housing. A processing unit and a display screen are installed on the meter head. Crude oil flows through the conductivity sensor probe, conductivity correction probe, and capacitance sensor probe.

[0008] Preferably, a connecting flange is fixedly provided at one end of both the inlet pipe and the outlet pipe.

[0009] Preferably, the two measuring cavities are connected by a connecting hole.

[0010] Preferably, the measuring chambers are connected in a counterclockwise sequence through a connecting hole, and the crude oil entering from the inlet pipe flows sequentially through the conductivity sensing probe, the conductivity correction probe, and the capacitance sensing probe.

[0011] (III) Beneficial Effects

[0012] This utility model has the following beneficial effects:

[0013] This multi-sensor water content detector works by having crude oil enter the measuring chamber through the inlet pipe. First, it flows through a conductivity sensor probe, while simultaneously, the ion concentration in the lower measuring chamber is balanced to correct the conductivity benchmark. Then, it flows through a capacitance sensor probe before exiting through the outlet pipe. The processing unit combines the values ​​returned from the three sensor probes to calculate the water content of the crude oil, and finally displays the required water content information on the screen. By combining conductivity and capacitance detection methods, and using a conductivity correction probe to balance the ion concentration in the measuring chamber and obtain a benchmark conductivity for calibration, the water content of the crude oil can be calculated comprehensively, achieving high-precision detection of crude oil water content and adapting to detection needs under various working conditions. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model.

[0015] In the diagram: 1. Inlet pipe; 2. Connecting flange; 3. Housing; 4. Measuring chamber; 5. Conductivity sensor probe; 6. Conductivity correction probe; 7. Connecting hole; 8. Capacitance sensor probe; 9. Outlet pipe; 10. Meter head; 11. Processing unit; 12. Display screen. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figure 1 This utility model provides a technical solution: a multi-sensor water content detector, including a housing 3, with three measuring chambers 4 arranged inside the housing 3. A conductivity sensor 5, a conductivity correction probe 6, and a capacitance sensor 8 are fixedly installed counterclockwise in the measuring chambers 4. An inlet pipe 1 and an outlet pipe 9 are respectively connected to the two sides of the housing 3. A meter head 10 is detachably connected to the middle of the housing 3. A processing unit 11 and a display screen 12 are installed on the meter head 10. Crude oil flows through the conductivity sensor 5, the conductivity correction probe 6, and the capacitance sensor 8.

[0018] In this invention, crude oil enters the measuring chamber 4 through the inlet pipe 1, first flowing through the conductivity sensor probe. Simultaneously, the ion concentration in the lower measuring chamber 4 is balanced to achieve conductivity benchmark calibration. Then, it flows through the capacitance sensor probe 8 and exits through the outlet pipe 9. The processing unit 11 comprehensively calculates the water content of the crude oil based on the values ​​returned by the three sensor probes, and finally displays the required water content information on the display screen 12. By combining conductivity and capacitance detection methods, and using the conductivity correction probe 6 to balance the ion concentration in the measuring chamber 4 and obtain a benchmark conductivity for conductivity benchmark calibration, the water content of the crude oil is comprehensively calculated, achieving high-precision detection of crude oil water content and adapting to detection needs under different working conditions.

[0019] Reference Figure 1 As shown in this embodiment, a connecting flange 2 is fixedly installed at one end of both the inlet pipe 1 and the outlet pipe 9. The connecting flange 2 allows for quick connection and installation of the entire testing instrument to the crude oil delivery pipeline.

[0020] In this embodiment, the two measuring chambers 4 are connected by a connecting hole 7.

[0021] Reference Figure 1 As shown, in this embodiment, the measuring chambers 4 are connected in a counterclockwise direction through the connecting holes 7. The crude oil entering from the inlet pipe 1 flows sequentially through the conductivity sensing probe 5, the conductivity correction probe 6, and the capacitance sensing probe 8. By connecting each measuring chamber 4 in a counterclockwise direction, it is possible to ensure that the crude oil flows quickly and thoroughly through each measuring chamber 4 and maintains stable contact with the sensing probes.

[0022] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-sensor water presence detector, comprising: The device includes a housing with three measuring chambers arranged inside. A conductivity sensor, a conductivity correction sensor, and a capacitance sensor are fixedly installed counterclockwise in each measuring chamber. An inlet pipe and an outlet pipe are respectively connected to both sides of the housing. A meter is detachably connected to the middle of the housing. A processing unit and a display screen are installed on the meter. Crude oil flows through the conductivity sensor, conductivity correction sensor, and capacitance sensor.

2. A multi-sensor water presence detector according to claim 1, wherein: Both the inlet pipe and the outlet pipe are fixedly equipped with connecting flanges at one end.

3. A multi-sensor water presence detector according to claim 1 or 2, characterized in that: The two measuring cavities are connected by a connecting hole.

4. A multi-sensor water presence detector according to claim 1 or 2, characterized in that: The measuring chambers are connected in a counterclockwise sequence through a connecting hole. The crude oil entering from the inlet pipe flows sequentially through the conductivity sensing probe, the conductivity correction probe, and the capacitance sensing probe.