Maintenance-free remote transmission electromagnetic flowmeter

Abstract

The utility model discloses a maintenance-free remote transmission electromagnetic flowmeter, which belongs to the technical field of electromagnetic flowmeters, and comprises a flowmeter main body, a shell and a protective shell, the shell is fixedly connected to the top of the flowmeter main body, and the bottom of the inner wall of the shell is fixedly connected with a lithium battery pack and a circular wire arrangement frame. The inner wall of the shell is fixedly connected with a protection frame, and the protection frame is provided with a data acquisition module, a signal amplifier and a wireless communication module. The electromagnetic flowmeter has the advantages that by arranging the protective shell, the sealing cover, the annular base, the rubber sealing ring and the like, double-layer reinforcing protection is provided for internal parts, waterproof and dustproof effects are achieved when the electromagnetic flowmeter is installed and used underground, the electromagnetic flowmeter can still keep a normal working state in a severe working environment, the long-term maintenance-free state can be achieved, and the service life of the electromagnetic flowmeter is prolonged. And by arranging a locking plate, a supporting plate, a bolt and a nut, the protective shell and the sealing cover are locked and limited, and workers can conveniently inspect and debug the interior.

Description

Technical Field

[0001] The utility model relates to the technical field of electromagnetic flowmeters, and more specifically, to a maintenance-free remote transmission electromagnetic flowmeter. 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] When electromagnetic flowmeters with remote transmission functions are used for sewage measurement, due to the relatively fragile protection function of the electromagnetic flowmeters, when they are installed on underground drainage pipes for measurement, rainy days will cause the electromagnetic flowmeters underground to be immersed in water, causing problems with flow measurement. Workers are required to go underground to maintain the electromagnetic flowmeters, which not only increases a lot of manpower costs, but also causes many inconveniences. Utility Model Content

[0004] (1) Technical issues to be solved

[0005] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a maintenance-free remote electromagnetic flowmeter, which has double-layer reinforcement protection to achieve long-term maintenance-free characteristics.

[0006] (2) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides such a maintenance-free remote electromagnetic flowmeter, comprising a flowmeter body, a shell and a protective shell, wherein the shell is fixedly connected to the top of the flowmeter body, a lithium battery pack and a circular wire rack are fixedly connected to the bottom of the inner wall of the shell, a protective frame is fixedly connected to the inner wall of the shell, a data acquisition module, a signal amplifier and a wireless communication module are arranged on the protective frame, a data conversion module is arranged on the top of the inner wall of the shell, a control display module is arranged on the top of the shell, a cable duct is fixedly connected to one side of the protective shell, a transmitting antenna is arranged in the cable duct, and a coil and an electrode are arranged in the flowmeter body;

[0008] The protective shell is fixedly connected to the outer surface of the shell body, one side of the protective shell is fixedly connected to a hinge seat, a sealing cover is movably connected to the hinge seat, the top of the protective shell is fixedly connected to an annular seat, the sealing cover cooperates with the annular seat, a rubber sealing ring is sleeved on the outer surface of the annular seat, one side of the protective shell is fixedly connected to a locking plate, a locking hole is provided on the locking plate, one side of the sealing cover is fixedly connected to a support plate, one side of the support plate is fixedly connected to a bolt, and the bolt cooperates with the locking plate through a nut.

[0009] When using a maintenance-free remote electromagnetic flowmeter of the present technical solution, a protective shell is used to provide double-layer reinforcement protection for the internal parts, and it is waterproof and dustproof when used in underground installation, so that the electromagnetic flowmeter can still maintain normal working condition in harsh working environments and can achieve a long-term maintenance-free state. The protective shell and the sealing cover are locked and limited by the sealing cover, bolts and nuts, which is also convenient for the staff to check and debug the interior.

[0010] Furthermore, the distance from any point on the inner wall of the protective shell to any point on the outer surface of the shell is greater than zero, and the distance from any point on the inner wall of the sealing cover to any point on the outer surface of the annular seat is greater than zero.

[0011] Furthermore, the transmitting antenna is limited in position by sealant in the cable tube, and the cable tube is sealed.

[0012] Furthermore, the sealing cover is rotatably connected to the hinge seat via a pin shaft, and a circular transparent window is provided on the sealing cover.

[0013] Furthermore, the diameter of the bolt is smaller than the diameter of the locking hole on the locking plate, and the diameter of the nut is larger than the diameter of the locking hole on the locking plate.

[0014] Furthermore, a pointer mark is fixedly connected to the front of the flow meter body, and an identification plate is fixedly connected to the back of the flow meter body.

[0015] Furthermore, the lithium battery pack is electrically connected to the control display module through wires, the control display module is electrically connected to the data acquisition module, the signal amplifier, the wireless communication module and the data conversion module through wires, the wireless communication module is electrically connected to the transmitting antenna through wires, and the data conversion module is electrically connected to the electrodes and the coil through wires.

[0016] (3) Beneficial effects

[0017] In summary, the utility model has the following beneficial effects:

[0018] 1. By setting up a protective shell, sealing cover, annular seat and rubber sealing ring, etc., double-layer reinforcement protection is provided for the internal parts, and waterproof and dustproof are provided for underground installation and use, so that the electromagnetic flowmeter can still maintain normal working state in harsh working environment, and can achieve a long-term maintenance-free state. By setting up locking plates, support plates, bolts and nuts, the protective shell and sealing cover are locked and limited, which is also convenient for staff to check and debug the internal;

[0019] 2. By setting up a circular cable management rack, the lines are clamped and limited when the modules are connected, which is easy to distinguish. By setting up pointers, the staff can be assisted in installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the specific implementation of the utility model or the technical solution in the prior art, the drawings required for describing the specific implementation or the prior art will be briefly introduced below. Obviously, the drawings described below are only one implementation of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is a structural schematic diagram of a three-dimensional cross-section of the utility model;

[0022] Figure 2 It is a structural schematic diagram of the second three-dimensional cross section of the utility model;

[0023] Figure 3 It is a three-dimensional structural schematic diagram of the utility model.

[0024] The markings in the accompanying drawings are:

[0025] 1. Flow meter body; 2. Shell; 3. Lithium battery pack; 4. Circular cable management rack; 5. Protective frame; 6. Data acquisition module; 7. Signal amplifier; 8. Wireless communication module; 9. Data conversion module; 10. Control display module; 11. Protective shell; 12. Hinge seat; 13. Sealing cover; 14. Ring seat; 15. Rubber sealing ring; 16. Locking plate; 17. Support plate; 18. Bolt; 19. Nut; 20. Cable duct; 21. Transmitting antenna; 22. Pointer; 23. Identification plate. DETAILED DESCRIPTION

[0026] In order to make the technical means, creative features, objectives and effects achieved by the utility model easy to understand, the technical scheme in the specific implementation mode of the utility model is clearly and completely described below to further illustrate the utility model. Obviously, the specific implementation mode described is only a part of the implementation mode of the utility model, rather than all styles.

[0027] Example:

[0028] The following is combined with Figure 1-3 The utility model is described in further detail.

[0029] See also Figure 1-3The utility model provides a technical solution: a maintenance-free remote electromagnetic flowmeter, comprising a flowmeter body 1, a shell 2 and a protective shell 11, the shell 2 is fixedly connected to the top of the flowmeter body 1, the inner wall bottom of the shell 2 is fixedly connected with a lithium battery pack 3 and a circular wire rack 4, the inner wall of the shell 2 is fixedly connected with a protective frame 5, the protective frame 5 is provided with a data acquisition module 6, a signal amplifier 7 and a wireless communication module 8, the inner wall top of the shell 2 is provided with a data conversion module 9, the top of the shell 2 is provided with a control display module 10, one side of the protective shell 11 is fixedly connected with a cable tube 20, a transmitting antenna 21 is provided in the cable tube 20, and a coil and an electrode are provided in the flowmeter body 1;

[0030] The protective shell 11 is fixedly connected to the outer surface of the housing 2, a hinge seat 12 is fixedly connected to one side of the protective shell 11, a sealing cover 13 is movably connected to the hinge seat 12, an annular seat 14 is fixedly connected to the top of the protective shell 11, the sealing cover 13 cooperates with the annular seat 14, and a rubber sealing ring 15 is sleeved on the outer surface of the annular seat 14. By arranging the protective shell 11, the sealing cover 13, the annular seat 14 and the rubber sealing ring 15, double-layer reinforcement protection is provided for the internal parts, and waterproof and dustproof are performed when installed underground, so that the electromagnetic flowmeter can be used in harsh environments. It still maintains a normal working state under the working environment and can achieve a long-term maintenance-free state. A locking plate 16 is fixedly connected to one side of the protective shell 11, and a locking hole is opened on the locking plate 16. A supporting plate 17 is fixedly connected to one side of the sealing cover 13. A bolt 18 is fixedly connected to one side of the supporting plate 17. The bolt 18 cooperates with the locking plate 16 through a nut 19. By arranging the locking plate 16, the supporting plate 17, the bolt 18 and the nut 19, the protective shell 11 and the sealing cover 13 are locked and limited, which is also convenient for the staff to check and debug the interior.

[0031] Specifically, the distance from any point on the inner wall of the protective shell 11 to any point on the outer surface of the shell 2 is greater than zero, the distance from any point on the inner wall of the sealing cover 13 to any point on the outer surface of the annular seat 14 is greater than zero, and the transmitting antenna 21 is limited by sealant in the cable tube 20, and the cable tube 20 is sealed.

[0032] By adopting the above technical solution, the distance from any point of the protective shell 11 to any point on the outer surface of the shell 2 is greater than zero, which means that there is a certain distance between the protective shell 11 and the shell 2, which reduces the internal pressure and increases the service life. The distance from any point on the inner wall of the sealing cover 13 to any point on the outer surface of the annular seat 14 is greater than zero, which means that when the sealing cover 13 is sleeved on the annular seat 14, there is a certain gap, which can be filled and sealed by the rubber sealing ring 15, and the inside of the cable tube 20 is sealed by the sealant to make it waterproof.

[0033] Specifically, the sealing cover 13 is rotatably connected to the hinge seat 12 through a pin shaft, a circular transparent window is provided on the sealing cover 13, the diameter of the bolt 18 is smaller than the diameter of the locking hole on the locking plate 16, the diameter of the nut 19 is larger than the diameter of the locking hole on the locking plate 16, the front of the flow meter body 1 is fixedly connected with a pointer 22, the back of the flow meter body 1 is fixedly connected with an identification plate 23, the lithium battery pack 3 is electrically connected to the control and display module 10 through wires, the control and display module 10 is electrically connected to the data acquisition module 6, the signal amplifier 7, the wireless communication module 8 and the data conversion module 9 through wires, the wireless communication module 8 is electrically connected to the transmitting antenna 21 through wires, and the data conversion module 9 is electrically connected to the electrode and the coil through wires.

[0034] By adopting the above technical solution, the diameter of the nut 19 is larger than the diameter of the locking hole on the locking plate 16, which facilitates the fixing of the bolt 18 inserted into the locking hole. The circular transparent window facilitates the observation of the control display module 10, the pointer 22 assists the staff in the installation, and the identification plate 23 marks the flow meter.

[0035] The working principle of the utility model is as follows: when in use, the staff installs the flow meter on the water pipe in the well according to the direction of the indicator 22 on the flow meter body 1, pushes the sealing cover 13 to rotate on the hinge seat 12, covers the annular seat 14, and sleeves the sealing cover 13 on the annular seat 14 by pressing, fills the gap between the sealing cover 13 and the annular seat 14 by the rubber sealing ring 15, puts the bolt 18 into the locking hole on the locking plate 16, and tightens it by the nut 19, so that the sealing cover 13 remains sleeved on the annular seat 14, fully seals the protective shell 11, and is convenient for debugging the electromagnetic flow meter during installation. On rainy days, when rainwater submerges the electromagnetic flow meter, the risk of water intrusion is effectively reduced through the sealing protection of the protective shell 11, thereby achieving a long-term maintenance-free state;

[0036] The structure in the flow meter is powered by the lithium battery pack 3. During measurement, the coil in the flow meter body 1 forms a magnetic field, and the electrode measures the electromotive force generated by the flow. The data is transmitted to the data conversion module 9 through the electromotive force signal. The electromotive force signal is converted into a current signal by the data conversion module 9. The data is collected and stored by the data acquisition module 6. The data is displayed by the control display module 10. At the same time, the data is transmitted to the wireless communication module 8, and the output current signal is amplified by the signal amplifier 7 and released at the transmitting antenna 21, thereby realizing remote monitoring by the staff.

[0037] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A maintenance-free remote electromagnetic flowmeter, comprising a flowmeter body (1), a housing (2) and a protective shell (11), characterized in that: The shell (2) is fixedly connected to the top of the flow meter body (1); the bottom of the inner wall of the shell (2) is fixedly connected to a lithium battery pack (3) and a circular wire management rack (4); the inner wall of the shell (2) is fixedly connected to a protective frame (5); the protective frame (5) is provided with a data acquisition module (6), a signal amplifier (7) and a wireless communication module (8); the top of the inner wall of the shell (2) is provided with a data conversion module (9); the top of the shell (2) is provided with a control display module (10); one side of the protective shell (11) is fixedly connected to a cable duct (20); a transmitting antenna (21) is provided in the cable duct (20); and a coil and an electrode are provided in the flow meter body (1); The protective shell (11) is fixedly connected to the outer surface of the shell body (2); a hinge seat (12) is fixedly connected to one side of the protective shell (11); a sealing cover (13) is movably connected to the hinge seat (12); an annular seat (14) is fixedly connected to the top of the protective shell (11); the sealing cover (13) cooperates with the annular seat (14); a rubber sealing ring (15) is sleeved on the outer surface of the annular seat (14); a locking plate (16) is fixedly connected to the other side of the protective shell (11); a locking hole is provided on the locking plate (16); a support plate (17) is fixedly connected to one side of the sealing cover (13); a bolt (18) is fixedly connected to one side of the support plate (17); the bolt (18) cooperates with the locking plate (16) through a nut (19).

2. A maintenance-free remote electromagnetic flowmeter according to claim 1, characterized in that: The distance from any point on the inner wall of the protective shell (11) to any point on the outer surface of the shell (2) is greater than zero, and the distance from any point on the inner wall of the sealing cover (13) to any point on the outer surface of the annular seat (14) is greater than zero.

3. The maintenance-free remote electromagnetic flowmeter according to claim 1 is characterized in that: The transmitting antenna (21) is limited in position by means of sealant in the cable duct (20), and the cable duct (20) is sealed.

4. The maintenance-free remote electromagnetic flowmeter according to claim 1 is characterized in that: The sealing cover (13) is rotatably connected to the hinge seat (12) via a pin shaft, and a circular transparent window is provided on the sealing cover (13).

5. The maintenance-free remote electromagnetic flowmeter according to claim 1 is characterized in that: The diameter of the bolt (18) is smaller than the diameter of the locking hole on the locking plate (16), and the diameter of the nut (19) is larger than the diameter of the locking hole on the locking plate (16).

6. The maintenance-free remote electromagnetic flowmeter according to claim 1 is characterized in that: A direction mark (22) is fixedly connected to the front of the flow meter body (1), and an identification plate (23) is fixedly connected to the back of the flow meter body (1).

7. The maintenance-free remote electromagnetic flowmeter according to claim 1 is characterized in that: The lithium battery pack (3) is electrically connected to the control display module (10) via a wire, the control display module (10) is electrically connected to the data acquisition module (6), the signal amplifier (7), the wireless communication module (8) and the data conversion module (9) via wires, the wireless communication module (8) is electrically connected to the transmitting antenna (21) via a wire, and the data conversion module (9) is electrically connected to the electrode and the coil via a wire.

Images