A smart electromagnetic flowmeter

Abstract

This invention discloses an intelligent electromagnetic flowmeter, belonging to the field of flowmeter technology. It includes a metering mechanism for reading liquid flow rate, an exhaust mechanism for discharging gas, and an output mechanism for controlling the output flow rate. The exhaust mechanism of this invention can discharge gas entering the liquid in the inlet pipe, ensuring that no extra air is present during liquid transport. When the inlet pipe is full of liquid, the exhaust port is sealed, preventing leakage. The exhaust mechanism, through the use of upper and lower one-way plates, gathers small flow streams into a single flow stream, ensuring measurement accuracy. Simultaneously, a slag collection slope removes sand and gravel from the liquid. The output mechanism can adjust the opening size of the connecting pipe according to the outflow rate, reducing the liquid velocity and preventing damage to downstream equipment due to excessive flow velocity.

Description

Technical Field

[0001] This invention relates to the field of flow meter technology, and in particular to an intelligent electromagnetic flow meter. Background Technology

[0002] Electromagnetic flow meters are a new type of flow measurement instrument. Utilizing the principle of electromagnetic induction, they measure fluid flow rate based on the electromotive force generated when a conductive fluid passes through an external magnetic field. This enables non-contact measurement, resulting in a longer lifespan and greater stability compared to other instruments. With industrial development, the demand for instrument integration is increasing. Traditional flow meters, with their single function and requirement to work with other components, are gradually being phased out. New metering instruments focus on measurement and are extended according to usage needs, greatly increasing their adaptability and reducing equipment requirements. However, current electromagnetic flow meters cannot achieve automatic venting and cannot control the output flow rate. Summary of the Invention

[0003] To address the aforementioned technical problems, the present invention adopts the following technical solution: an intelligent electromagnetic flow meter, comprising a metering mechanism for reading liquid flow rate, the metering mechanism comprising a housing, an exhaust mechanism for discharging gas and an output mechanism for controlling output flow rate, the exhaust mechanism comprising an inlet pipe fixedly mounted on the housing, and the output mechanism comprising a connecting pipe fixedly mounted on the housing.

[0004] Furthermore, the measuring mechanism includes a liner fixedly installed inside the housing, a bracket fixedly installed on the housing, and a display screen fixedly installed on the bracket.

[0005] Furthermore, two magnetic poles and two coils are fixedly installed inside the outer casing. The two magnetic poles are located on both sides of the lining and are in contact with the lining. The two coils are located on the upper and lower sides of the lining and are in contact with the lining. The coils are connected to the display screen through ribbon cables.

[0006] When the liquid enters the lining, a magnetic field is generated by the two magnetic poles. After passing through the magnetic field, the liquid generates an electromotive force in the coil. The signal is then transmitted to the display screen via a ribbon cable, and the flow rate is displayed on the screen.

[0007] Furthermore, the venting mechanism includes a venting pipe fixedly installed on the liquid inlet pipe, a lightweight rod slidably installed inside the venting pipe, a float fixedly installed below the lightweight rod, and a plurality of venting holes provided on the venting pipe.

[0008] Furthermore, a lower through hole is provided in the liquid inlet pipe, a sliding column is slidably installed in the liquid inlet pipe, a lower one-way plate is fixedly installed on the sliding column, and a lower spring is provided between the sliding column and the liquid inlet pipe. In the initial state, the lower one-way plate closes the lower through hole.

[0009] Furthermore, the inlet pipe is provided with an upper through hole, an upper sliding column is slidably installed in the inlet pipe, an upper one-way plate is fixedly installed on the upper sliding column, and an upper spring is provided between the upper sliding column and the inlet pipe. In the initial state, the upper one-way plate closes the upper through hole.

[0010] Furthermore, the inlet pipe is equipped with a slag-collecting slope to block sand and gravel in the liquid, and a sliding plate is installed on the inlet pipe.

[0011] Liquid enters through the inlet pipe. As the liquid flows past the float, it lifts the float and the lightweight rod. If the liquid fills the entire inner wall of the inlet pipe, the float and the lightweight rod are completely lifted, sealing the vent hole through the float. When there is air in the inlet pipe, the gas will be discharged through the vent hole, ensuring that there is no extra air during liquid transport. The lower and upper one-way plates are responsible for collecting small streams of liquid into a single stream. When the liquid flow rate reaches a certain level, the liquid will push the lower one-way plate and the sliding column to slide, compressing the lower spring, and the liquid will pass through the lower through hole. Similarly, the liquid will push the upper one-way plate and the upper sliding column to slide, compressing the upper spring, and the liquid will pass through the upper through hole, ensuring metering accuracy. After the liquid passes through the upper through hole, it first impacts the suction plate, and the sand and gravel in the liquid will be blocked by the slag collection slope. Then the liquid enters the lining. During shutdown maintenance, simply open the suction plate to discharge the sand and gravel.

[0012] Furthermore, the output mechanism includes a liquid outlet pipe fixedly installed on the connecting pipe, an outlet column slidably installed inside the liquid outlet pipe, an outlet hole provided inside the liquid outlet pipe, an outlet spring provided between the outlet column and the liquid outlet pipe, and an outlet one-way plate fixedly installed on the outlet column. In the initial state, the outlet one-way plate closes the outlet hole.

[0013] Furthermore, a push block is slidably installed inside the connecting pipe, a push column is fixedly installed on the push block, the push column is slidably installed with the connecting pipe, an outer push frame is fixedly installed on the push column, a push column spring is provided between the outer push frame and the connecting pipe, extension rods are fixedly installed on both sides of the connecting pipe, two outer rotating rods are rotatably installed on the outer push frame, a bending rod is rotatably installed on the outer rotating rod, the bending rod is rotatably installed with the extension rod, an inner push rod is rotatably installed on the extension rod, an inner push plate is rotatably installed on the inner push rod, and the inner push plate is slidably installed with the connecting pipe.

[0014] After the liquid measurement is completed, it enters the connecting pipe. The outlet area is limited by the push block. When the flow rate and pressure increase, the push block and push column will be pushed to move backward. The push column spring is stretched, and the push column moves outward, driving the outer rotating rod to rotate. This causes the bending rod to rotate around the extension rod, thereby pushing the two inner push plates to slide inward through the inner push rod, reducing the area of ​​the liquid inlet of the connecting pipe, reducing the liquid flow rate, and preventing damage to downstream equipment due to excessive flow rate. When the liquid flows to the outlet one-way plate, it will push the outlet one-way plate and outlet column to slide along the liquid outlet pipe. The outlet spring is compressed, allowing the liquid to pass through the outlet hole, ensuring that the liquid passes through the outlet one-way plate in one direction.

[0015] The beneficial effects of this invention compared with the prior art are: (1) The exhaust mechanism set by this invention can discharge the gas entering the liquid in the inlet pipe, ensuring that there is no extra air when the liquid is transported. When the liquid fills the inlet pipe, the exhaust hole is sealed and the liquid will not leak out; (2) The exhaust mechanism set by this invention can gather small flow into a whole flow by setting an upper one-way plate and a lower one-way plate, ensuring the accuracy of measurement. At the same time, the sand and gravel in the liquid are removed by setting a slag collection slope; (3) The output mechanism set by this invention can change the opening size of the connecting pipe according to the flow rate of the liquid, reduce the liquid flow rate, and prevent damage to subsequent equipment due to excessive flow rate. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0017] Figure 2 This is a schematic diagram of the metering mechanism structure of the present invention. Figure 1 .

[0018] Figure 3 This is a schematic diagram of the metering mechanism structure of the present invention. Figure 2 .

[0019] Figure 4 This is a schematic diagram of the exhaust mechanism structure of the present invention. Figure 1 .

[0020] Figure 5 This is a schematic diagram of the exhaust mechanism structure of the present invention. Figure 2 .

[0021] Figure 6 This is a schematic diagram of the exhaust mechanism structure of the present invention. Figure 3 .

[0022] Figure 7 This is a schematic diagram of the output mechanism structure of the present invention. Figure 1 .

[0023] Figure 8 This is a schematic diagram of the output mechanism structure of the present invention. Figure 2 .

[0024] Figure 9 This is a schematic diagram of the output mechanism structure of the present invention. Figure 3 .

[0025] Reference numerals: 101-Outer shell; 102-Liner; 103-Magnetic pole; 104-Coil; 105-Wire; 106-Bracket; 107-Display screen; 201-Inlet pipe; 202-Exhaust pipe; 203-Float; 204-Lightweight rod; 205-Exhaust port; 206-Draw plate; 207-Slag collection slope; 208-Upper one-way plate; 209-Upper through hole; 210-Upper sliding column; 211-Upper spring; 212-Lower order 213 - Lower through hole; 214 - Lower slide column; 215 - Lower spring; 301 - Connecting pipe; 302 - Liquid outlet pipe; 303 - Push block; 304 - Push column; 305 - Push column spring; 306 - Outer push frame; 307 - Outer rotating rod; 308 - Bending rod; 309 - Inner push rod; 310 - Inner push plate; 311 - Outlet one-way plate; 312 - Outlet column; 313 - Outlet hole; 314 - Outlet spring; 315 - Extending rod. Detailed Implementation

[0026] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings.

[0027] Example: Reference Figures 1-9 An intelligent electromagnetic flow meter includes a metering mechanism for reading liquid flow rate. The metering mechanism includes a housing 101, an exhaust mechanism for discharging gas, and an output mechanism for controlling the output flow rate. The exhaust mechanism includes an inlet pipe 201, which is fixedly installed on the housing 101. The output mechanism includes a connecting pipe 301, which is fixedly installed on the housing 101.

[0028] like Figure 2 , Figure 3 As shown, the measuring mechanism includes a liner 102 fixedly installed inside the housing 101, a bracket 106 fixedly installed on the housing 101, and a display screen 107 fixedly installed on the bracket 106.

[0029] like Figure 2 , Figure 3 As shown, two magnetic poles 103 and two coils 104 are fixedly installed inside the outer casing 101. The two magnetic poles 103 are located on both sides of the lining 102 and are in contact with the lining 102. The two coils 104 are located on the upper and lower sides of the lining 102 and are in contact with the lining 102. The coils 104 are connected to the display screen 107 through the ribbon cable 105.

[0030] When the liquid enters the lining 102, a magnetic field is generated by the two magnetic poles 103. After passing through the magnetic field, the liquid generates an electromotive force in the coil 104. The signal is transmitted to the display screen 107 via the ribbon cable 105, and the flow rate is displayed on the display screen 107.

[0031] like Figures 4-6As shown, the venting mechanism includes a venting pipe 202 fixedly installed on the liquid inlet pipe 201, a lightweight rod 204 slidably installed inside the venting pipe 202, a float 203 fixedly installed below the lightweight rod 204, and a plurality of venting holes 205 provided on the venting pipe 202.

[0032] like Figures 4-6 As shown, a lower through hole 213 is provided in the liquid inlet pipe 201, a lower slide column 214 is slidably installed in the liquid inlet pipe 201, a lower one-way plate 212 is fixedly installed on the lower slide column 214, and a lower spring 215 is provided between the lower slide column 214 and the liquid inlet pipe 201. In the initial state, the lower one-way plate 212 closes the lower through hole 213.

[0033] like Figures 4-6 As shown, an upper through hole 209 is provided in the liquid inlet pipe 201, an upper sliding column 210 is slidably installed in the liquid inlet pipe 201, an upper one-way plate 208 is fixedly installed on the upper sliding column 210, and an upper spring 211 is provided between the upper sliding column 210 and the liquid inlet pipe 201. In the initial state, the upper one-way plate 208 closes the upper through hole 209.

[0034] like Figures 4-6 As shown, the inlet pipe 201 is equipped with a slag collection slope 207 for blocking sand and gravel in the liquid, and a draw plate 206 is slidably installed on the inlet pipe 201.

[0035] Liquid enters through inlet pipe 201. When the liquid flows past float 203, it lifts float 203 and lightweight rod 204. If the liquid fills the entire inner wall of inlet pipe 201, float 203 and lightweight rod 204 are completely lifted, sealing vent 205 through float 203. When there is air in inlet pipe 201, the gas will be discharged from vent 205, ensuring that there is no extra air during liquid transport. Lower one-way plate 212 and upper one-way plate 208 are responsible for collecting small streams of liquid into a single stream. When the liquid flow rate reaches a certain level... Afterwards, the liquid will push the lower one-way plate 212 and the sliding column 214 to slide, the lower spring 215 will be compressed, and the liquid will pass through the lower through hole 213. Similarly, the liquid will push the upper one-way plate 208 and the upper sliding column 210 to slide, the upper spring 211 will be compressed, and the liquid will pass through the upper through hole 209 to ensure metering accuracy. When the liquid passes through the upper through hole 209, it will first impact the suction plate 206. The sand and gravel in the liquid will be blocked by the slag collection slope 207. Then the liquid will enter the lining 102. During shutdown maintenance, the sand and gravel can be discharged simply by opening the suction plate 206.

[0036] like Figures 7-9As shown, the output mechanism includes an outlet pipe 302 fixedly installed on the connecting pipe 301, an outlet column 312 slidably installed inside the outlet pipe 302, an outlet hole 313 provided inside the outlet pipe 302, an outlet spring 314 provided between the outlet column 312 and the outlet pipe 302, and an outlet one-way plate 311 fixedly installed on the outlet column 312. In the initial state, the outlet one-way plate 311 closes the outlet hole 313.

[0037] like Figures 7-9 As shown, a push block 303 is slidably installed inside the connecting pipe 301, a push column 304 is fixedly installed on the push block 303, the push column 304 is slidably installed with the connecting pipe 301, an outer push frame 306 is fixedly installed on the push column 304, a push column spring 305 is provided between the outer push frame 306 and the connecting pipe 301, extension rods 315 are fixedly installed on both sides of the connecting pipe 301, two outer rotating rods 307 are rotatably installed on the outer push frame 306, a bending rod 308 is rotatably installed on the outer rotating rod 307, the bending rod 308 is rotatably installed with the extension rod 315, an inner push rod 309 is rotatably installed on the extension rod 315, an inner push plate 310 is rotatably installed on the inner push rod 309, and the inner push plate 310 is slidably installed with the connecting pipe 301.

[0038] After the liquid measurement is completed, it enters the connecting pipe 301. The outlet area is restricted by the push block 303. When the flow rate and pressure increase, the push block 303 and the push column 304 will be pushed to move backward. The push column spring 305 will be stretched, and the push column 304 will move outward, driving the outer rotating rod 307 to rotate. This will drive the bending rod 308 to rotate around the extension rod 315, thereby pushing the two inner push plates 310 to slide inward through the inner push rod 309, reducing the area of ​​the liquid inlet of the connecting pipe 301, reducing the liquid flow rate, and preventing damage to subsequent equipment due to excessive flow rate. When the liquid flows to the outlet one-way plate 311, it will push the outlet one-way plate 311 and the outlet column 312 to slide along the liquid outlet pipe 302. The outlet spring 314 will be compressed, allowing the liquid to pass through the outlet hole 313, ensuring that the liquid passes through the outlet one-way plate 311 in one direction.

[0039] The working principle of the intelligent electromagnetic flowmeter disclosed in this invention is as follows: Liquid enters through the inlet pipe 201. When the liquid flows past the float 203, it lifts the float 203 and the lightweight rod 204. If the liquid fills the entire inner wall of the inlet pipe 201, the float 203 and the lightweight rod 204 are completely lifted, sealing the vent 205 through the float 203. When there is air in the inlet pipe 201, the gas will be discharged from the vent 205, ensuring that there is no extra air during liquid transportation. The lower one-way plate 212 and the upper one-way plate 208 are responsible for collecting small streams of liquid into a single stream. When the liquid flow rate reaches a certain level, the liquid will push the lower one-way plate 212 and the sliding column 214 to slide, compressing the lower spring 215, and the liquid will pass through the lower through hole 213. Similarly, the liquid will push the upper one-way plate 208 and the upper sliding column 210 to slide, compressing the upper spring 211, and the liquid will pass through the upper through hole 209, ensuring metering accuracy. After the liquid passes through the upper through hole 209, it first impacts the suction plate 206, and the sand and gravel in the liquid will be blocked by the slag collection slope 207. Then the liquid enters the lining 102. During shutdown maintenance, the sand and gravel can be discharged simply by opening the suction plate 206. After the liquid enters the lining 102, a magnetic field is generated by the two magnetic poles 103. After passing through the magnetic field, the liquid generates an electromotive force in the coil 104, and the signal is transmitted to the display screen 107 via the ribbon cable 105, where the flow rate is displayed. After the liquid measurement is completed, it enters the connecting pipe 301. The outlet area is restricted by the push block 303. When the flow rate and pressure increase, the push block 303 and the push column 304 will be pushed to move backward. The push column spring 305 will be stretched, and the push column 304 will move outward, driving the outer rotating rod 307 to rotate. This will drive the bending rod 308 to rotate around the extension rod 315, thereby pushing the two inner push plates 310 to slide inward through the inner push rod 309, reducing the area of ​​the liquid inlet of the connecting pipe 301, reducing the liquid flow rate, and preventing damage to subsequent equipment due to excessive flow rate. When the liquid flows to the outlet one-way plate 311, it will push the outlet one-way plate 311 and the outlet column 312 to slide along the liquid outlet pipe 302. The outlet spring 314 will be compressed, allowing the liquid to pass through the outlet hole 313, ensuring that the liquid passes through the outlet one-way plate 311 in one direction.

[0040] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the present invention based on the technical solution and inventive concept of the present invention should be covered within the scope of protection of the present invention.

Claims

1. An intelligent electromagnetic flowmeter, comprising a metering mechanism for reading liquid flow rate, characterized in that: The metering mechanism includes a housing (101), and is provided with an exhaust mechanism for discharging gas and an output mechanism for controlling the output flow rate. The exhaust mechanism includes an inlet pipe (201), which is fixedly installed on the housing (101). The output mechanism includes a connecting pipe (301), which is fixedly installed on the housing (101). The exhaust mechanism includes an exhaust pipe (202) fixedly installed on the liquid inlet pipe (201), a lightweight rod (204) slidably installed inside the exhaust pipe (202), a float (203) fixedly installed below the lightweight rod (204), and a plurality of exhaust holes (205) provided on the exhaust pipe (202). The output mechanism includes a liquid outlet pipe (302) fixedly installed on the connecting pipe (301), an outlet column (312) slidably installed inside the liquid outlet pipe (302), an outlet hole (313) provided inside the liquid outlet pipe (302), an outlet spring (314) provided between the outlet column (312) and the liquid outlet pipe (302), and an outlet one-way plate (311) fixedly installed on the outlet column (312). In the initial state, the outlet one-way plate (311) closes the outlet hole (313). A push block (303) is slidably installed inside the connecting pipe (301). A push column (304) is fixedly installed on the push block (303). The push column (304) is slidably installed with the connecting pipe (301). An outer push frame (306) is fixedly installed on the push column (304). A push column spring (305) is provided between the outer push frame (306) and the connecting pipe (301). An extension rod (315) is fixedly installed on both sides of the connecting pipe (301). Two outer rotating rods (307) are rotatably installed on the outer push frame (306). A bending rod (308) is rotatably installed on the outer rotating rod (307). The bending rod (308) is rotatably installed with the extension rod (315). An inner push rod (309) is rotatably installed on the extension rod (315). An inner push plate (310) is rotatably installed on the inner push rod (309). The inner push plate (310) is slidably installed with the connecting pipe (301).

2. The intelligent electromagnetic flowmeter according to claim 1, characterized in that: The measuring mechanism includes a liner (102) fixedly installed inside the housing (101), a bracket (106) fixedly installed on the housing (101), and a display screen (107) fixedly installed on the bracket (106).

3. The intelligent electromagnetic flowmeter according to claim 2, characterized in that: Two magnetic poles (103) and two coils (104) are fixedly installed inside the outer shell (101). The two magnetic poles (103) are located on both sides of the lining (102) and are in contact with the lining (102). The two coils (104) are located on the upper and lower sides of the lining (102) and are in contact with the lining (102). The coils (104) are connected to the display screen (107) through a ribbon cable (105).

4. The intelligent electromagnetic flowmeter according to claim 1, characterized in that: The inlet pipe (201) is provided with a lower through hole (213), and a sliding column (214) is slidably installed in the inlet pipe (201). A lower one-way plate (212) is fixedly installed on the sliding column (214). A lower spring (215) is provided between the sliding column (214) and the inlet pipe (201). In the initial state, the lower one-way plate (212) closes the lower through hole (213).

5. The intelligent electromagnetic flowmeter according to claim 4, characterized in that: The inlet pipe (201) is provided with an upper through hole (209), and an upper sliding column (210) is slidably installed in the inlet pipe (201). An upper one-way plate (208) is fixedly installed on the upper sliding column (210). An upper spring (211) is provided between the upper sliding column (210) and the inlet pipe (201). In the initial state, the upper one-way plate (208) closes the upper through hole (209).

6. The intelligent electromagnetic flowmeter according to claim 5, characterized in that: The inlet pipe (201) is provided with a slag collection slope (207) for blocking sand and gravel in the liquid, and a draw plate (206) is slidably installed on the inlet pipe (201).

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