IP Library Granted Patent US 12680848
Granted Patent B1
US 12680848 · App. 19/008,500 · Granted Jul 14, 2026

Magmeter and method of assembly

Inventors: Todd C. Thompson (New Orleans, LA); Thomas Meacham, Jr. (Perkasie, PA)
Assignee: THOMPSON EQUIPMENT COMPANY, INC.
G01F1/584E21B21/08G01F1/60
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Quick Facts
Patent No.
US 12680848
App. No.
19/008,500
Granted
Jul 14, 2026
Kind
B1
Abstract

The present invention relates to magnetic flowmeters. More particularly, the present invention relates to a magnetic flowmeter specifically designed for the hydraulic fracturing industry that is capable of withstanding a variety of corrosive slurries, acids, bases, and solvents including a liner including partially stabilized magnesium zirconia (MgPSZ).

Claims (32)

1 . A flow measurement system comprising:

a primary and a secondary,

with the primary comprising:

a flow tube or pipe having two opposing ends, one or more electrodes comprising stainless steel, and integrated with a magnetic system,

wherein the flow tube or pipe is at least partially lined with liner having corrosion resistance and comprising partially stabilized magnesium zirconia (MgPSZ) material;

wherein the liner is mechanically affixed to the flow tube or pipe via heat shrink and without use of adhesives;

with the secondary comprising a power supply with a synchronized measurement circuitry; and

wherein the primary is tolerant of or configurable to electrical properties of the secondary and operably mates with the secondary.

2 . The system of claim 1 , wherein the liner further comprises an abrasion resistant ceramic trim.

3 . A method of measuring flow using the system of claim 1 .

4 . The system of claim 1 , wherein the system meets requirements for operation in Hazardous areas designated as Class I Division 2.

5 . The system of claim 1 , wherein the primary further comprises a grooved end fitting at each end of the flow tube or pipe.

6 . The system of claim 1 , wherein the primary further comprises a flange at each end of the flow tube or pipe.

7 . The system of claim 1 , wherein the flow tube or pipe comprises metal.

8 . The system of claim 1 , wherein the flow tube or pipe is coated with epoxy.

9 . A magnetic flowmeter comprising:

a. a pipe or tube having an exterior surface and an interior surface, wherein the pipe or tube is at least partially lined on the interior surface with a liner comprising partially stabilized magnesium zirconia (MgPSZ), wherein the liner is mechanically affixed to the pipe or tube via heat shrink and without use of adhesives;

b. at least one coil for generating a magnetic field affixed to the exterior surface of the pipe or tube and having an electrical connection;

c. one or more electrodes having wiring and affixed to the pipe or tube;

d. a shell enclosure, having a tubular neck protrusion, that surrounds the exterior of said coil and is affixed to said coil; and

e, wherein the electrical connection of said coil and the wiring of the one or more electrodes are threaded through the neck of said shell and connected to a junction box having a circuit board for operation.

10 . The magnetic flowmeter of claim 9 , wherein at least one or the electrodes is made of industrial grade tungsten carbide.

11 . A flow measurement system comprising the flowmeter of claim 10 and a secondary, wherein the secondary comprises a power supply with a synchronized measurement circuitry; and wherein the magnetic flowmeter is tolerant of or configurable to electrical properties of the secondary and operably mates with the secondary.

12 . A method of measuring flow using the system of claim 11 .

13 . The magnetic flowmeter of claim 9 , wherein at least one or the electrodes comprises stainless steel.

14 . A flow measurement system comprising the flowmeter of claim 13 and a secondary, wherein the secondary comprises a power supply with a synchronized measurement circuitry; and wherein the magnetic flowmeter is tolerant of or configurable to electrical properties of the secondary and operably mates with the secondary.

15 . A method of measuring flow using the system of claim 14 .

16 . A flow measurement system comprising the flowmeter of claim 9 and a secondary, wherein the secondary comprises a power supply with a synchronized measurement circuitry; and wherein the magnetic flowmeter is tolerant of or configurable to electrical properties of the secondary and operably mates with the secondary.

17 . A method of measuring flow using the system of claim 16 .

18 . The magnetic flowmeter of claim 9 , wherein the pipe or tube has two opposing ends with a grooved end fitting at each of said ends.

19 . The magnetic flowmeter of claim 9 , wherein the pipe or tube has two opposing ends with a flange at each of said ends.

20 . The magnetic flowmeter of claim 9 , wherein the exterior surface of the pipe or tube is coated with epoxy.