Electromagnetic water meter

Abstract

The utility model relates to the technical field of measuring devices, in particular to an electromagnetic water meter. The electromagnetic water meter comprises a water meter body, a fixing assembly and a measuring assembly, at least one assembling hole is formed in a guide pipe of the water meter body, the fixing assembly comprises at least one first electrode sleeve, and the first electrode sleeve is located in the assembling hole; the measuring assembly comprises a pressure sensor and a converter, one end of the pressure sensor is electrically connected with the converter, the other end of the pressure sensor is arranged in the first electrode sleeve and makes contact with fluid in the guide pipe, and the pressure sensor is arranged in the assembly hole of the electromagnetic water meter so that the pressure of the fluid can be directly measured. A pressure guide pipe for communicating the pressure sensor with the fluid does not need to be arranged on the water meter body, so that the assembly process of the electromagnetic water meter is simplified, and the assembly efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of measuring devices, and in particular to an electromagnetic water meter. Background Art

[0002] Electromagnetic water meter is an intelligent water meter based on Faraday's law of electromagnetic induction. It has the advantages of high precision, high reliability, long service life and low pressure loss. Electromagnetic water meter includes conduit, electromagnetic flow meter, wire, flange and pressure sensor. The electromagnetic flow meter is used to measure the flow rate of the fluid in the pipeline, and the pressure sensor is used to measure the pressure of the fluid in the conduit.

[0003] In the related art, the pressure sensor is externally arranged by adding a pressure measurement outlet on the flange or the conduit and setting a pressure guide pipe at the pressure measurement outlet to guide the fluid in the conduit to the pressure sensor through the pressure guide pipe, thereby realizing the pressure measurement of the fluid in the conduit.

[0004] However, the installation method of the above pressure sensor makes the assembly process of the electromagnetic water meter complicated and reduces the assembly efficiency. Utility Model Content

[0005] The present application provides an electromagnetic water meter, which is used to solve the problem in the prior art that the installation structure of the pressure sensor of the electromagnetic water meter is complicated in the assembly process and reduces the assembly efficiency.

[0006] In order to achieve the above objectives, this application provides the following technical solutions:

[0007] The present application provides an electromagnetic water meter, including a water meter body, a fixing component and a measuring component;

[0008] The water meter body comprises a conduit and a shell, wherein the shell is sleeved on the circumference of the conduit and connected to the conduit to form a receiving cavity between the shell and the conduit; at least one assembly hole is provided on the conduit, and the assembly hole is located in the receiving cavity;

[0009] The fixing assembly includes at least one first electrode sleeve, and the first electrode sleeve is located in the assembly hole;

[0010] The measuring component includes a pressure sensor and a converter. One end of the pressure sensor is electrically connected to the converter, and the other end of the pressure sensor is arranged in the first electrode sleeve and contacts the fluid in the catheter to measure the pressure of the fluid.

[0011] In a possible implementation, the fixing assembly further includes at least one sealing ring, and the sealing ring abuts between the pressure sensor and the first electrode sleeve.

[0012] In a possible implementation, two first electrode holes are provided on the catheter, and each of the first electrode holes is located in the accommodating cavity; the assembly hole and each of the first electrode holes are arranged in sequence and spaced apart and located on the same circumference, and the two first electrode holes are located in the same diameter direction of the catheter;

[0013] The fixing assembly further includes two second electrode sleeves, wherein the second electrode sleeves are located in the first electrode holes;

[0014] The measuring component further comprises two signal electrodes, which are correspondingly inserted into the second electrode sleeve, and each of the signal electrodes is electrically connected to the converter respectively.

[0015] In a possible implementation, a second electrode hole is provided on the catheter, and the second electrode hole is located in the accommodating cavity; the assembly hole, the first electrode hole and the second electrode hole are arranged in sequence and spaced apart and located on the same circumference, and the second electrode hole and the assembly hole are located in the same diameter direction of the catheter;

[0016] The fixing assembly further includes a third electrode sleeve, and the third electrode sleeve is located in the second electrode hole;

[0017] The measuring component also includes a grounding electrode, which is inserted into the third electrode sleeve.

[0018] In a possible implementation, the electromagnetic water meter also includes a silicon steel sheet surrounding the circumference of the conduit, the silicon steel sheet is located in the accommodating cavity, a first electromagnetic component and a second electromagnetic component are provided between the silicon steel sheet and the conduit, the pressure sensor is arranged throughout the first electromagnetic component; the ground electrode is arranged throughout the second electromagnetic component.

[0019] In a possible implementation, the first electromagnetic assembly or the second electromagnetic assembly includes an excitation coil and an iron core, the excitation coil is located between the silicon steel sheet and the conduit, the iron core is nested in the excitation coil, and the iron core has a mounting hole, the mounting hole is used to be sleeved on part of the pressure sensor and part of the first electrode sleeve, or the mounting hole is used to be sleeved on part of the ground electrode and part of the third electrode sleeve;

[0020] Fastening holes are provided on both sides of the mounting hole, and fasteners are provided on both sides of the first electrode sleeve or the third electrode sleeve. The fasteners partially pass through the fastening holes and out of the side of the silicon steel sheet away from the guide tube to fix the iron core.

[0021] In a possible implementation manner, each of the signal electrodes is provided with a wire, and each of the signal electrodes is electrically connected to the converter via the wire.

[0022] In a possible implementation, the electromagnetic water meter further includes a connecting pipe, which is disposed on a side of the shell away from the conduit and is communicated with the accommodating cavity, and the converter is located in the connecting pipe.

[0023] In a possible implementation, the electromagnetic water meter also includes a lining, which is arranged around the inner wall of the conduit, and a first through hole, a second through hole and a third through hole are arranged on the lining, the first through hole is arranged in a one-to-one correspondence with the assembly hole, the second through hole is arranged in a one-to-one correspondence with the first electrode hole, and the third through hole is arranged in a one-to-one correspondence with the second electrode hole.

[0024] In a possible implementation, the electromagnetic water meter further includes two flanges, and the two flanges are respectively arranged at two ends of the conduit.

[0025] The present application provides an electromagnetic water meter, which is provided with a water meter body, a fixing assembly and a measuring assembly. The water meter body includes a conduit and a shell, and the shell is sleeved on the circumference of the conduit to form a receiving cavity between the conduit and the conduit; at least one assembly hole is provided on the conduit, and the fixing assembly includes at least one first electrode sleeve, and the first electrode sleeve is located in the assembly hole; the measuring assembly includes a pressure sensor and a converter, one end of the pressure sensor is electrically connected to the converter, and the other end of the pressure sensor is arranged in the first electrode sleeve and contacts with the fluid in the conduit to measure the pressure of the fluid. In this way, the pressure sensor is built into the assembly hole of the electromagnetic water meter, and the pressure sensor directly contacts with the fluid in the conduit to achieve pressure measurement, so that there is no need to set a pressure-conducting pipe connecting the pressure sensor and the fluid on the water meter body, so as to simplify the assembly process of the electromagnetic water meter and improve the assembly efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can also be obtained based on these drawings without creative work. The drawings herein are incorporated into the specification and constitute a part of the specification, showing embodiments that conform to the present application, and are used together with the specification to explain the principles of the present application.

[0027] Figure 1 A schematic diagram of the structure of an electromagnetic water meter provided in an embodiment of the present application;

[0028] Figure 2 A schematic structural diagram of an electromagnetic water meter from another perspective provided in an embodiment of the present application;

[0029] Figure 3for Figure 1 A schematic diagram of the structure of the connection between the middle fixed component and the catheter;

[0030] Figure 4 for Figure 2 Schematic diagram of the cross-sectional structure at AA;

[0031] Figure 5 for Figure 4 Schematic diagram of the explosion structure of the silicon steel sheet and the conduit;

[0032] Figure 6 for Figure 5 Schematic diagram of the structure of the excitation coil;

[0033] Figure 7 for Figure 5 Schematic diagram of the structure of the iron core.

[0034] The above drawings have shown clear embodiments of the present application, which will be described in more detail later. These drawings and text descriptions are not intended to limit the scope of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments.

[0035] Description of reference numerals:

[0036] 100- water meter body;

[0037] 110 - catheter; 111 - assembly hole; 112 - first electrode hole; 113 - second electrode hole;

[0038] 120-housing; 121-accommodating chamber;

[0039] 130-side panels;

[0040] 140-Silicon steel sheet;

[0041] 150 - first electromagnetic assembly; 151 - excitation coil; 152 - iron core; 1521 - mounting hole; 1522 - fastening hole;

[0042] 160 - second electromagnetic assembly;

[0043] 170-connecting pipe;

[0044] 180-lining;

[0045] 190-flange;

[0046] 200-fixed component;

[0047] 210 - first electrode sleeve; 211 - first plug hole; 212 - fastener;

[0048] 220-seal ring;

[0049] 230 - second electrode sleeve; 231 - second plug hole;

[0050] 240 - third electrode sleeve; 241 - third plug hole;

[0051] 300- measurement components;

[0052] 310-pressure sensor;

[0053] 320-converter;

[0054] 330-signal electrode; 331-lead;

[0055] 340-Ground electrode. DETAILED DESCRIPTION

[0056] In order to make the purpose, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments of the present application will be described in more detail below in conjunction with the drawings in the preferred embodiments of the present application. In the drawings, the same or similar reference numerals throughout represent the same or similar parts or parts with the same or similar functions. The described embodiments are part of the embodiments of the present application, not all of the embodiments. The embodiments described below with reference to the drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limitations on the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present application.

[0057] Electromagnetic water meters are made based on the Faraday electromagnetic induction principle. They are widely used in raw water, water supply, sewage treatment, water conservancy projects and other industries due to their high measurement accuracy, no obstructions, hygiene and environmental protection. In some application scenarios, electromagnetic water meters need to measure the pressure in the fluid pipeline so that abnormal conditions such as pipeline leakage can be identified in advance.

[0058] In the prior art, the pressure sensor is installed on the outside of the electromagnetic water meter, and a pressure measurement outlet is added to the flange or the conduit, and a pressure lead pipe is welded to the pressure measurement outlet, and the conduit and the pressure sensor are connected through the pressure lead pipe, so that the fluid in the conduit is drained to the pressure sensor to achieve pressure measurement. In this way, in the production of the entire electromagnetic water meter, the installation cost and installation process of the pressure lead pipe need to be increased, which makes the assembly process complicated, reduces the assembly efficiency, and increases the production cost.

[0059] Based on this, the present application provides an electromagnetic water meter, including a water meter body, a fixing component and a measuring component. By setting at least one assembly hole on the conduit of the water meter body, the fixing component includes at least one first electrode sleeve, and the first electrode sleeve is located in the assembly hole; the measuring component includes a pressure sensor and a converter, one end of the pressure sensor is electrically connected to the converter, and the other end of the pressure sensor is set in the first electrode sleeve and contacts with the fluid in the conduit to measure the pressure of the fluid. In this way, the pressure sensor is built into the assembly hole of the electromagnetic water meter, and the pressure sensor directly contacts with the fluid in the conduit to achieve pressure measurement, so there is no need to set a pressure pipe connecting the pressure sensor and the fluid on the water meter body, and by eliminating the setting cost and installation process of the pressure pipe, the assembly process of the electromagnetic water meter is simplified, thereby improving the assembly efficiency, and also reducing the production cost.

[0060] The technical solution of the present application is described in detail below with reference to the accompanying drawings using specific embodiments. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described in detail in some embodiments.

[0061] like Figures 1 to 4 As shown, an embodiment of the present application provides an electromagnetic water meter, including a water meter body 100, a fixing assembly 200 and a measuring assembly 300; the water meter body 100 includes a conduit 110 and a shell 120, the shell 120 is sleeved on the circumference of the conduit 110, and the shell 120 is connected to the conduit 110 to form a accommodating cavity 121 between the shell 120 and the conduit 110; at least one assembly hole 111 is provided on the conduit 110, and the assembly hole 111 is located in the accommodating cavity 121; the fixing assembly 200 includes at least one first electrode sleeve 210, and the first electrode sleeve 210 is located in the assembly hole 111.

[0062] The measuring assembly 300 includes a pressure sensor 310 and a converter 320. One end of the pressure sensor 310 is electrically connected to the converter 320. The other end of the pressure sensor 310 is disposed in the first electrode sleeve 210 and contacts the fluid in the catheter 110 to measure the pressure of the fluid.

[0063] In this application, if Figure 1 and Figure 2As shown, the fluid flows along the conduit 110 in the length direction of the conduit 110, and the shell 120 is sleeved on the circumference of the conduit 110. Exemplarily, the shell 120 includes a shell body 120 and two opposite side plates 130, the side plates 130 are sleeved on the conduit 110, the shell body 120 is located between the two side plates 130, and the shell body 120 is arranged around the circumference of the conduit 110. The shell body 120, the side plates 130 and the conduit 110 are connected to each other by welding or fastener connection to form a closed accommodating chamber 121. It should be noted that the shell 120 can also be an integrally formed structural member, as long as it can be sleeved on the circumference of the conduit 110 and form an accommodating chamber with a part of the outer wall of the conduit 110, and the embodiment of the present application does not make specific restrictions on this.

[0064] Further, such as Figure 3 and Figure 4 As shown, at least one assembly hole 111 is provided on the catheter 110 located in the accommodating cavity 121, and the assembly hole 111 can be processed by integral molding or the like. A portion of the first electrode sleeve 210 is in a structure matching the assembly hole 111, and is fixed in the assembly hole 111 by welding or interference fit or the like. Another portion of the first electrode sleeve 210 extends out of the top of the assembly hole 111 and covers the outer wall of the catheter 110, and the first electrode sleeve 210 is provided with a first plug hole 211 connecting the inside and outside of the catheter 110. Correspondingly, one end of the pressure sensor 310 is in a plug end matching the first plug hole 211, and the plug end is inserted into the first electrode sleeve 210 through the first plug hole 211, and a portion of the plug end extends into the catheter 110 to contact the fluid in the catheter 110.

[0065] In the embodiment of the present application, illustratively, an internal thread is provided in the first plug hole 211, and an external thread matching the internal thread of the plug hole is provided at the plug end. The pressure sensor 310 can be fixed in the first electrode sleeve 210 through the connection of the internal and external threads, and a part of the plug end of the pressure sensor 310 extends into the catheter 110 and contacts the fluid in the catheter 110. It should be noted that the part of the plug end extending into the catheter 110 is the measuring end of the pressure sensor 310.

[0066] When used in the present application, the side of the pressure sensor 310 away from the measuring end is electrically connected to the converter 320, and the converter 320 is electrically connected to the external display device. When the fluid in the conduit 110 flows, the measuring end of the pressure sensor 310 is in direct contact with the fluid, and the pressure measurement value is calculated by the converter 320 and transmitted back to the external display device, thereby realizing the pressure measurement of the fluid in the conduit 110. It can be understood that when there is no fluid flowing in the conduit 110, the pressure sensor 310 can measure the air pressure in the conduit 110 to realize the empty pipe detection of the conduit 110. In this way, the present application realizes the pressure measurement by embedding the pressure sensor 310 in the assembly hole 111 of the electromagnetic water meter, and the pressure sensor 310 directly contacts the fluid in the conduit 110, so that there is no need to set a structural member connecting the pressure sensor 310 and the fluid on the water meter body 100, and by eliminating the setting cost and installation process of the connecting structure, the assembly process of the electromagnetic water meter is simplified, thereby improving the assembly efficiency, and also reducing the production cost.

[0067] In some embodiments, the electromagnetic water meter without the pressure sensor 310 is provided with a liquid contact electrode to detect an empty pipe of the conduit 110. When the pressure sensor 310 is not installed in the assembly hole 111 of the present application, a hollow threaded plug can be added in the first electrode sleeve 210, and the liquid contact electrode is inserted in the hollow threaded plug to achieve the installation of the liquid contact electrode. The hollow threaded plug is used to increase the sealing between the liquid contact electrode and the first electrode sleeve 210. In this way, the assembly hole 111 of the present application can be equipped with a pressure sensor 310 or a liquid contact electrode, so that the structure of the present application has universality and good replaceability, so that it can be compatible with different product structures in production, meet different production needs, and further simplify the assembly process.

[0068] In some embodiments, the fixing assembly 200 further includes at least one sealing ring 220 , and the sealing ring 220 abuts between the pressure sensor 310 and the first electrode sleeve 210 .

[0069] In this application, if Figure 4 As shown, exemplarily, the sealing ring 220 is a rubber ring, which abuts between the pressure sensor 310 and the first electrode sleeve 210 to increase the sealing between the pressure sensor 310 and the first electrode sleeve 210, thereby preventing the fluid in the catheter 110 from penetrating into the accommodating cavity 121, thereby ensuring the normal use of the electrical performance of devices such as the pressure sensor 310.

[0070] In some embodiments, two first electrode holes 112 are provided on the catheter 110, and each first electrode hole 112 is located in the accommodating cavity 121; the assembly hole 111 and each first electrode hole 112 are arranged in sequence at intervals and located on the same circumference, and the two first electrode holes 112 are located in the same diameter direction of the catheter 110; the fixing assembly 200 also includes two second electrode sleeves 230, and the second electrode sleeves 230 are located in the first electrode holes 112.

[0071] The measuring component 300 further includes two signal electrodes 330 . The signal electrodes 330 are correspondingly inserted into the second electrode sleeve 230 . Each signal electrode 330 is electrically connected to the converter 320 .

[0072] In this application, if Figure 3 and Figure 4 As shown, two first electrode holes 112 can be set on the circumference of the catheter 110 located in the accommodating cavity 121 by means of integral molding or the like, and each first electrode hole 112 and the assembly hole 111 are sequentially arranged on the same circumference of the catheter 110 at intervals, and the two first electrode holes 112 are located in the same diameter direction of the catheter 110; correspondingly, the two second electrode sleeves 230 of the fixing assembly 200 are respectively partially arranged in each first electrode hole 112; specifically, part of the second electrode sleeve 230 is in a structure matching the first electrode hole 112, so as to be fixed in the first electrode hole 112 by means of welding or interference fit, and another part of the second electrode sleeve 230 extends out of the top of the first electrode hole 112 and covers the outer wall of the catheter 110, and the second electrode sleeve 230 is provided with a second plug hole 231 connecting the inside and outside of the catheter 110.

[0073] In a specific implementation, the two second electrode sleeves 230 are located in the same diameter direction of the catheter 110, and two signal electrodes 330 are correspondingly inserted in the second plug holes 231 of the two second electrode sleeves 230. When the fluid flows through the signal electrodes 330, an electromotive force is generated due to the electrical conductivity of the fluid. Each signal electrode 330 senses the electromotive force, and each signal electrode 330 is electrically connected to the converter 320, so that the induced electromotive force collected by the signal electrode 330 is converted into a digital signal through the converter 320, and then the flow rate measurement value of the fluid in the catheter 110 is displayed through an external display device.

[0074] It should be noted that each signal electrode 330 can be fixed in the first electrode hole 112 by means of a spring and a nut, and a sealing ring is also provided between the signal electrode 330 and the second electrode sleeve 230 to increase the sealing between the two, thereby preventing the fluid in the catheter 110 from penetrating into the accommodating cavity 121.

[0075] In some embodiments, a second electrode hole 113 is provided on the catheter 110, and the second electrode hole 113 is located in the accommodating cavity 121; the assembly hole 111, the first electrode hole 112 and the second electrode hole 113 are arranged in sequence and are located on the same circumference, and the second electrode hole 113 and the assembly hole 111 are located in the same diameter direction of the catheter 110; the fixing component 200 also includes a third electrode sleeve 240, and the third electrode sleeve 240 is located in the second electrode hole 113; the measuring component 300 also includes a grounding electrode 340, and the grounding electrode 340 is inserted in the third electrode sleeve 240.

[0076] In this application, continue as Figure 3 and Figure 4 As shown, a second electrode hole 113 is provided on the catheter 110 located in the accommodating cavity 121, and the second electrode hole 113 can be processed by integral molding or the like, and the second electrode hole 113, the first electrode hole 112 and the assembly hole 111 are sequentially arranged on the same circumference of the catheter 110 at intervals, and the second electrode hole 113 and the assembly hole 111 are located in the same diameter direction of the catheter 110; correspondingly, a third electrode sleeve 240 of the fixing component 200 is partially arranged in the second electrode hole 113, specifically, a portion of the third electrode sleeve 240 has a structure matching the second electrode hole 113, and is fixed in the second electrode hole 113 by welding or interference fit or the like, and another portion of the third electrode sleeve 240 extends out of the top of the second electrode hole 113 and covers the outer wall of the catheter 110, and the third electrode sleeve 240 is provided with a third plug hole 241 connecting the inside and outside of the catheter 110. It should be noted that the ground electrode 340 can be fixed in the second electrode hole 113 by means of a spring and a nut, and a sealing ring is also provided between the ground electrode 340 and the third electrode sleeve 240 to increase the sealing between the two, thereby preventing the fluid in the catheter 110 from penetrating into the accommodating cavity 121.

[0077] During specific use, the third electrode sleeve 240 and the first electrode sleeve 210 are in the same radial direction, and the grounding electrode 340 is inserted into the third plug hole 241 of the third electrode sleeve 240. When the conduit of the electromagnetic water meter is a non-metallic conduit, the grounding electrode 340 is connected to the ground to ensure that the electromagnetic water meter forms a complete circuit in the fluid.

[0078] In some embodiments, it also includes a silicon steel sheet 140 surrounding the circumference of the catheter 110, the silicon steel sheet 140 is located in the accommodating cavity 121, and a first electromagnetic component 150 and a second electromagnetic component 160 are provided between the silicon steel sheet 140 and the catheter 110, the pressure sensor 310 is arranged throughout the first electromagnetic component 150; the ground electrode 340 is arranged throughout the second electromagnetic component 160.

[0079] In this application, if Figure 4 and Figure 5As shown, a silicon steel sheet 140 is arranged around the catheter 110 located in the accommodating cavity 121, and a first electromagnetic component 150 and a second electromagnetic component 160 are arranged opposite to each other between the silicon steel sheet 140 and the catheter 110. Specifically, the first electromagnetic component 150 is installed on the catheter 110, and the pressure sensor 310 is arranged through the first electromagnetic component 150, and the pressure sensor 310 partially passes through the silicon steel sheet 140 to be electrically connected to the converter 320; the second electromagnetic component 160 is installed on the catheter 110, and the grounding electrode 340 is arranged through the second electromagnetic component 160, and the grounding electrode 340 partially passes through the silicon steel sheet 140 to be connected to the ground. By setting the first electromagnetic component 150 and the second electromagnetic component 160, a strong magnetic field is generated in the catheter 110. When the fluid passes through the magnetic field, a small induced electromotive force is generated due to the force of cutting the magnetic lines of force. The induced electromotive force is collected by the signal electrode 330 and transmitted to the converter 320 to be converted into a digital signal, thereby realizing the flow rate measurement of the fluid in the catheter 110.

[0080] In some embodiments, the first electromagnetic component 150 or the second electromagnetic component 160 includes an excitation coil 151 and an iron core 152. The excitation coil 151 is located between the silicon steel sheet 140 and the catheter 110. The iron core 152 is nested in the excitation coil 151. The iron core 152 has a mounting hole 1521. The mounting hole 1521 is used to be mounted on the pressure sensor 310 and a portion of the first electrode sleeve 210, or the mounting hole 1521 is used to be mounted on a portion of the ground electrode 340 and a portion of the third electrode sleeve 240.

[0081] Fastening holes 1522 are provided on both sides of the mounting hole 1521 , and fasteners 212 are provided on both sides of the first electrode sleeve 210 or the third electrode sleeve 240 . The fasteners 212 partially pass through the fastening holes 1522 and out of the side of the silicon steel sheet 140 away from the guide tube 110 to fix the iron core 152 .

[0082] In this application, if Figures 4 to 6 As shown, the first electromagnetic assembly 150 or the second electromagnetic assembly 160 includes an excitation coil 151 and an iron core 152. The excitation coil 151 is located between the silicon steel sheet 140 and the conduit 110, and the excitation coil 151 is a hollow structure. The iron core 152 is closely arranged in the hollow structure of the excitation coil 151. Further, as shown Figure 7 As shown, the iron core 152 has a mounting hole 1521 so that the iron core 152 is sleeved on the pressure sensor 310 and a portion of the first electrode sleeve 210 , or the mounting hole 1521 is sleeved on a portion of the ground electrode 340 and a portion of the third electrode sleeve 240 .

[0083] Furthermore, fastening holes 1522 are provided on both sides of the mounting hole 1521, and fasteners 212 are provided on both sides of the outer wall of the first electrode sleeve 210, illustratively, the fasteners 212 are matching studs and nuts, and the studs partially pass through the fastening holes 1522 and are sleeved on the side of the silicon steel sheet 140 away from the catheter 110 to fix the iron core 152 so that the iron core 152 does not shift in position.

[0084] In this way, by setting the excitation coil 151 and the iron core 152, a strong magnetic field can be formed after the excitation current is passed. When the fluid passes through the magnetic field, the magnetic lines of force of the magnetic field can be cut, thereby generating an induced electromotive force for the signal electrode 330 to collect.

[0085] In some embodiments, each signal electrode 330 is provided with a wire 331 , and each signal electrode 330 is electrically connected to the converter 320 via the wire 331 .

[0086] In this application, if Figure 4 and Figure 5 As shown, each signal electrode 330 is connected to a wire 331. Specifically, one end of the wire 331 can be locked to the end of the signal electrode 330 away from the catheter 110 through a nut, and the other end of the wire 331 is electrically connected to the converter 320, so that the signal electrode 330 is electrically connected to the converter 320, thereby ensuring that the induced electromotive force collected by the signal electrode 330 can be transmitted to the converter 320. In the specific setting, a plurality of wire clamps are provided on the side of the silicon steel sheet 140 away from the catheter 110, and the wire clamps are used to clamp the wire 331 and arrange the wire 331 neatly on the arrangement path.

[0087] In some embodiments, the present application further includes a connecting tube 170 , which is disposed on a side of the housing 120 away from the catheter 110 , and the connecting tube 170 is communicated with the accommodating cavity 121 , and the converter 320 is located in the connecting tube 170 .

[0088] In the embodiments of the present application, Figure 1 , Figure 2 and Figure 4As shown, a connecting pipe 170 is provided on the side of the shell 120 away from the conduit 110. The connecting pipe 170 has a hollow structure and is connected to the accommodating chamber 121. Exemplarily, the connecting pipe 170 coincides with the axis of the assembly hole 111, then the pressure sensor 310 is arranged directly below the connecting pipe 170, and the converter 320 can be set in the connecting pipe 170 by bonding or the like, so that the electrical connection between the pressure sensor 310 and the converter 320 is easy to achieve; further, the connecting pipe 170 can also be used to add an external display device and a cover plate, the display device is used to be electrically connected to the converter 320 to display the fluid flow rate value and the pressure value measured by the electromagnetic water meter, and the provision of the cover plate can make the connecting pipe 170 and the inside of the accommodating chamber 121 protective, so as to extend the service life of the electromagnetic water meter.

[0089] In some embodiments, the present application also includes a lining 180, which is arranged around the inner wall of the catheter 110, and a first through hole, a second through hole and a third through hole are arranged on the lining 180, the first through hole is arranged in a one-to-one correspondence with the assembly hole 111, the second through hole is arranged in a one-to-one correspondence with the first electrode hole 112, and the third through hole is arranged in a one-to-one correspondence with the second electrode hole 113.

[0090] In this application, if Figure 1 and Figure 4 As shown, the inner wall of the conduit 110 is fitted with a liner 180, and a first through hole corresponding to the assembly hole 111 is provided on the liner 180, so that the measuring end of the pressure sensor 310 extends into the conduit 110 through the assembly hole 111 and the first through hole, and two second through holes corresponding to each first electrode hole 112 are provided, so that each signal electrode 330 extends into the liner 180 through the first electrode hole 112 and the second through hole, and a third through hole corresponding to each second electrode hole 113 is provided, so that the ground electrode 340 extends into the liner 180 through the second electrode hole 113 and the third through hole. Exemplarily, the material of the liner 180 is ethylene-tetrafluoroethylene copolymer, so as to prevent the conduit 110 from being corroded.

[0091] In some embodiments, the present application further includes two flanges 190 , which are respectively disposed at two ends of the conduit 110 .

[0092] In this application, if Figures 1 to 3 As shown, the flange 190 can be fixed to both ends of the conduit 110 by welding or the like, and the conduit 110 can be conveniently connected to the fluid pipeline through the flange 190. For example, the flange 190 on the conduit 110 is connected to the flange on the fluid pipeline by high-strength bolts. In a specific implementation, a sealing ring or a gasket can be added at the connection between the flange 190 and the fluid pipeline to improve the sealing between the flange 190 and the fluid pipeline.

[0093] So far, the technical solution of the present application has been described in conjunction with the preferred embodiments shown in the accompanying drawings.

[0094] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0095] In the description of the embodiments of the present application, it should be understood that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, or it can be indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances. The orientation or position relationship indicated by the terms "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise precisely and specifically specified.

[0096] The terms "first", "second", "third", "fourth", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein, for example. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0097] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. An electromagnetic water meter, characterized in that: It includes a water meter body, a fixing component and a measuring component; The water meter body comprises a conduit and a shell, wherein the shell is sleeved on the circumference of the conduit and connected to the conduit to form a receiving cavity between the shell and the conduit; at least one assembly hole is provided on the conduit, and the assembly hole is located in the receiving cavity; The fixing assembly includes at least one first electrode sleeve, and the first electrode sleeve is located in the assembly hole; The measuring component includes a pressure sensor and a converter. One end of the pressure sensor is electrically connected to the converter, and the other end of the pressure sensor is arranged in the first electrode sleeve and contacts the fluid in the catheter to measure the pressure of the fluid.

2. The electromagnetic water meter according to claim 1, characterized in that: The fixing assembly further includes at least one sealing ring, and the sealing ring abuts between the pressure sensor and the first electrode sleeve.

3. The electromagnetic water meter according to claim 1, characterized in that: Two first electrode holes are arranged on the catheter, and each of the first electrode holes is located in the accommodating cavity; the assembly hole and each of the first electrode holes are arranged in sequence and spaced apart and located on the same circumference, and the two first electrode holes are located in the same diameter direction of the catheter; The fixing assembly further includes two second electrode sleeves, wherein the second electrode sleeves are located in the first electrode holes; The measuring component further comprises two signal electrodes, which are correspondingly inserted into the second electrode sleeve, and each of the signal electrodes is electrically connected to the converter respectively.

4. The electromagnetic water meter according to claim 3, characterized in that: A second electrode hole is provided on the catheter, and the second electrode hole is located in the accommodating cavity; the assembly hole, the first electrode hole and the second electrode hole are arranged in sequence and spaced apart and located on the same circumference, and the second electrode hole and the assembly hole are located in the same diameter direction of the catheter; The fixing assembly further includes a third electrode sleeve, and the third electrode sleeve is located in the second electrode hole; The measuring component also includes a grounding electrode, which is inserted into the third electrode sleeve.

5. The electromagnetic water meter according to claim 4, characterized in that: It also includes a silicon steel sheet surrounding the circumference of the catheter, the silicon steel sheet is located in the accommodating cavity, a first electromagnetic component and a second electromagnetic component are arranged between the silicon steel sheet and the catheter, the pressure sensor is arranged in the first electromagnetic component; the ground electrode is arranged in the second electromagnetic component.

6. The electromagnetic water meter according to claim 5, characterized in that: The first electromagnetic assembly or the second electromagnetic assembly comprises an excitation coil and an iron core, wherein the excitation coil is located between the silicon steel sheet and the conduit, and the iron core is nested in the excitation coil, and the iron core has a mounting hole, wherein the mounting hole is used to be sleeved on part of the pressure sensor and part of the first electrode sleeve, or the mounting hole is used to be sleeved on part of the ground electrode and part of the third electrode sleeve; Fastening holes are provided on both sides of the mounting hole, and fasteners are provided on both sides of the first electrode sleeve or the third electrode sleeve. The fasteners partially pass through the fastening holes and out of the side of the silicon steel sheet away from the guide tube to fix the iron core.

7. The electromagnetic water meter according to claim 3, characterized in that: A conducting wire is provided on each of the signal electrodes, and each of the signal electrodes is electrically connected to the converter via the conducting wire.

8. The electromagnetic water meter according to any one of claims 1 to 7, characterized in that: It also includes a connecting pipe, which is arranged on a side of the shell away from the conduit, and is communicated with the accommodating cavity, and the converter is located in the connecting pipe.

9. The electromagnetic water meter according to any one of claims 4 to 6, characterized in that: It also includes a lining, which is arranged around the inner wall of the catheter, and a first through hole, a second through hole and a third through hole are arranged on the lining, the first through hole is arranged in a one-to-one correspondence with the assembly hole, the second through hole is arranged in a one-to-one correspondence with the first electrode hole, and the third through hole is arranged in a one-to-one correspondence with the second electrode hole.

10. The electromagnetic water meter according to any one of claims 1 to 7, characterized in that: It also includes two flanges, which are respectively arranged at two ends of the conduit.

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