Electromagnetic flowmeter convenient to disassemble and assemble

Abstract

The electromagnetic flowmeter comprises a sensor shell and a converter shell, a measuring tube is inserted in the middle of the sensor shell, the two ends of the measuring tube penetrate through the two sides of a sensor respectively, a magnetic ring is arranged in the sensor shell, the magnetic ring is arranged on the peripheral wall of the measuring tube in a sleeved mode, a coil is arranged on the peripheral wall of the magnetic ring in a sleeved mode, and the converter shell is connected with the measuring tube in a sleeved mode. The coil is connected with the inner wall of the sensor shell through a support, a connecting column is arranged at one end of the sensor shell, external threads are arranged on the peripheral wall of the connecting column, a processor is arranged in the converter shell and used for processing electric signals measured by the measuring pipe, a connecting pipe is arranged at one end of the converter shell, and internal threads are arranged on the inner peripheral wall of the connecting pipe. The connecting pipe is in threaded connection fit with the connecting column. According to the electromagnetic flowmeter convenient to disassemble and assemble, modular design is adopted, the sensor and the converter board are designed into independent modules, disassembly and assembly are convenient, and a user can maintain, replace and carry the electromagnetic flowmeter conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of electromagnetic flowmeters, in particular to an electromagnetic flowmeter which is convenient for disassembly and assembly. Background Art

[0002] Electromagnetic flowmeter is a new type of flow measurement instrument that developed rapidly in the 1950s and 1960s with the development of electronic technology. Electromagnetic flowmeter is an instrument that uses the principle of electromagnetic induction to measure the flow rate of conductive fluid based on the electromotive force induced when the conductive fluid passes through an external magnetic field.

[0003] During the use of electromagnetic flowmeters, the sensors and converter boards need to be frequently maintained or replaced. Existing electromagnetic flowmeters are very cumbersome, time-consuming and labor-intensive to disassemble and install. They are not only inconvenient for users to carry, but also inconvenient for testers to maintain the sensors and converter boards. Even when the sensor or converter board is damaged, the entire electromagnetic flowmeter needs to be replaced, which increases the cost of use. Utility Model Content

[0004] The utility model aims to provide an electromagnetic flowmeter which is convenient for disassembly and assembly. The utility model adopts a modular design and designs a sensor and a converter board as independent modules, which are convenient for disassembly and assembly and are convenient for users to maintain, replace and carry.

[0005] The technical solution adopted by the electromagnetic flowmeter convenient for disassembly and assembly disclosed in the utility model is:

[0006] An electromagnetic flowmeter that is easy to disassemble and assemble comprises a sensor housing and a converter housing, wherein a measuring tube is inserted in the middle of the sensor housing, and two ends of the measuring tube respectively pass through two sides of the sensor, a magnetic ring is arranged in the sensor housing, and the magnetic ring is sleeved on the peripheral wall of the measuring tube, and a coil is sleeved on the outer peripheral wall of the magnetic ring, and the coil is connected to the inner wall of the sensor housing through a bracket, a connecting column is arranged at one end of the sensor housing, and the peripheral wall of the connecting column is provided with an external thread, a processor is arranged in the converter housing, and the processor is used to process the electrical signal measured by the measuring tube, a connecting tube is arranged at one end of the converter housing, and the inner peripheral wall of the connecting tube is provided with an internal thread, and the connecting tube is threadedly connected to the connecting column.

[0007] As a preferred solution, a threading hole is provided on the connecting column.

[0008] As a preferred solution, flanges are provided at both ends of the measuring tube.

[0009] As a preferred solution, the connecting pipe is integrally formed with the converter housing.

[0010] As a preferred solution, a display and connection terminals are also provided on the converter housing.

[0011] As a preferred solution, the converter housing has an opening at one end away from the sensor housing, and a rear cover is provided at the opening.

[0012] The utility model discloses an electromagnetic flowmeter that is easy to disassemble and assemble, which has the beneficial effect of dividing the electromagnetic flowmeter into a sensor module and a converter board module. The sensor module is used to measure the fluid flow rate, and the converter board module is used to process and output the measurement result. The magnetic ring and the coil inside the sensor housing constitute an electromagnetic field. When the liquid flows through the measuring tube, an electromotive force is generated, which is processed by the processor inside the converter housing and then outputs the measurement result. The two independent modules are installed by threaded connection between the sensor housing and the converter housing, which is easy to disassemble and assemble, and is convenient for users to maintain, replace and carry. In case of subsequent failure, only the corresponding module needs to be replaced, thereby reducing the cost of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The utility model is a structural schematic diagram of an electromagnetic flowmeter which is convenient for disassembly and assembly.

[0014] Figure 2 The utility model is a structural schematic diagram of an electromagnetic flowmeter sensor module which is convenient for disassembly and assembly.

[0015] 10. Sensor housing; 11. Measuring tube; 12. Magnetic ring; 13. Coil; 14. Bracket; 15. Connecting column; 16. Threading hole; 17. Flange; 20. Converter housing; 21. Connecting tube; 22. Display; 23. Wiring terminal; 24. Back cover. DETAILED DESCRIPTION

[0016] The present invention is further described and illustrated below in conjunction with specific embodiments and accompanying drawings:

[0017] Please refer to Figure 1 and Figure 2An electromagnetic flowmeter that is easy to disassemble and assemble includes a sensor housing 10 and a converter housing 20. A measuring tube 11 is inserted in the middle of the sensor housing 10. Both ends of the measuring tube 11 pass through both sides of the sensor respectively. Both ends of the measuring tube 11 are provided with flanges 17. The flanges 17 are used to install and fix the measuring tube 11. A magnetic ring 12 is provided in the sensor housing 10. The magnetic ring 12 is sleeved on the peripheral wall of the measuring tube 11. The outer peripheral wall of the magnetic ring 12 is sleeved with a coil 13. The coil 13 is connected to the inner wall of the sensor housing 10 through a bracket 14. The magnetic ring 12 and the coil 13 form an electromagnetic field. When the liquid flows through the measuring tube 11, it will generate Electromotive force, a connecting column 15 is provided at one end of the sensor housing 10, a threading hole 16 is opened on the connecting column 15, and an external thread is provided on the peripheral wall of the connecting column 15. A processor is provided in the converter housing 20, and the wires on the processor pass through the threading hole 16 to be connected with the measuring tube 11. The processor is used to process the electrical signal measured by the measuring tube 11. A connecting tube 21 is provided at one end of the converter housing 20, and an internal thread is provided on the inner peripheral wall of the connecting tube 21. The connecting tube 21 is threadedly connected to the connecting column 15. The threaded connection structure is easy to disassemble and assemble, and is convenient for users to maintain, replace and carry. At the same time, if a failure occurs later, only the corresponding module needs to be replaced, which reduces the cost of use.

[0018] It should be noted that the connecting tube 21 and the converter housing 20 are integrally formed, which is convenient for manufacturing and reduces costs. In addition, the connecting column 15 and the sensor housing 10 are also integrally formed, and the sensor housing 10 is welded by two symmetrical half shells, which are welded after the measuring tube 11, the magnetic ring 12 and the coil 13 are assembled.

[0019] Please refer to Figure 1 Specifically, the converter housing 20 is also provided with a display 22 and a terminal 23. The display 22 is used to display the measurement results, and the terminal 23 is connected to the external circuit. In addition, the converter housing 20 is open at one end away from the sensor housing 10, which is convenient for installing and removing the processor, and a rear cover 24 is provided for blocking.

[0020] The utility model provides an electromagnetic flowmeter which is convenient for disassembly and assembly, and divides the electromagnetic flowmeter into a sensor module and a converter board module. The sensor module is used to measure the fluid flow, and the converter board module is used to process and output the measurement result. The magnetic ring and the coil inside the sensor housing constitute an electromagnetic field. When the liquid flows through the measuring tube, an electromotive force is generated, and the measurement result is output after being processed by the processor inside the converter housing. The two independent modules are installed by threaded connection between the sensor housing and the converter housing, and are convenient for disassembly and assembly, and are convenient for users to maintain, replace and carry. At the same time, in case of subsequent failure, only the corresponding module needs to be replaced, thereby reducing the use cost.

[0021] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit the protection scope of the utility model. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the utility model.

Claims

1. An electromagnetic flowmeter that is easy to disassemble and assemble, characterized in that: It includes a sensor housing and a converter housing. A measuring tube is inserted in the middle of the sensor housing. Two ends of the measuring tube pass through two sides of the sensor respectively. A magnetic ring is arranged in the sensor housing. The magnetic ring is sleeved on the peripheral wall of the measuring tube. A coil is sleeved on the outer peripheral wall of the magnetic ring. The coil is connected to the inner wall of the sensor housing through a bracket. A connecting column is arranged at one end of the sensor housing. The peripheral wall of the connecting column is provided with an external thread. A processor is arranged in the converter housing. The processor is used to process the electrical signal measured by the measuring tube. A connecting tube is arranged at one end of the converter housing. The inner peripheral wall of the connecting tube is provided with an internal thread. The connecting tube is threadedly connected to the connecting column.

2. The electromagnetic flowmeter that is easy to disassemble and assemble as claimed in claim 1, characterized in that: The connecting column is provided with a threading hole.

3. The electromagnetic flowmeter that is easy to disassemble and assemble as claimed in claim 1, characterized in that: Both ends of the measuring tube are provided with flanges.

4. The electromagnetic flowmeter that is easy to disassemble and assemble as claimed in claim 1, characterized in that: The connecting pipe is integrally formed with the converter housing.

5. The electromagnetic flowmeter that is easy to disassemble and assemble as claimed in claim 1, characterized in that: The converter housing is also provided with a display and connection terminals.

6. The electromagnetic flowmeter that is easy to disassemble and assemble as claimed in claim 1, characterized in that: The converter housing has an opening at one end away from the sensor housing, and a rear cover is provided at the opening.

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