Intelligent electromagnetic flowmeter

Abstract

The invention discloses an intelligent electromagnetic flowmeter, which belongs to the technical field of flowmeters and comprises a metering mechanism for reading liquid flow, and the metering mechanism is provided with an exhaust mechanism for exhausting gas and an output mechanism for controlling output flow. The exhaust mechanism can exhaust gas of liquid entering the liquid inlet pipe, it is guaranteed that no extra air exists when the liquid is conveyed, and when the liquid is full of the liquid inlet pipe, the exhaust hole is closed, and the liquid cannot leak out; according to the exhaust mechanism, by arranging an upper one-way plate and a lower one-way plate, small flows are collected into the whole flow, the metering accuracy is guaranteed, and meanwhile sand and stones in liquid are removed through arrangement of a slag collecting slope; according to the output mechanism, the opening degree of the connecting pipe can be changed according to the liquid outlet flow quantity, the liquid flow speed is reduced, and subsequent equipment is prevented from being damaged due to the too high flow speed.

Description

Technical Field

[0001] The present invention relates to the technical field of flowmeters, and in particular to an intelligent electromagnetic flowmeter. Background Art

[0002] The electromagnetic flowmeter is a new type of flow measurement instrument. It utilizes the principle of electromagnetic induction to measure fluid flow based on the electromotive force generated when a conductive fluid passes through an applied magnetic field. This non-contact measurement ensures a longer lifespan and greater stability than other instruments. With industrial development, the demand for instrument integration is increasing. Traditional flowmeters, with their single function and the need for integration with other components, are gradually being phased out. New metering instruments are centered around measurement and extend their capabilities based on user needs, significantly increasing their compatibility and reducing equipment requirements. Existing electromagnetic flowmeters lack automatic venting and cannot control output flow. Summary of the Invention

[0003] In response to the above technical problems, the technical solution adopted by the present invention is: an intelligent electromagnetic flowmeter, including a metering mechanism for reading liquid flow, the metering mechanism including a shell, the metering mechanism is provided with an exhaust mechanism for exhausting gas and an output mechanism for controlling the output flow, the exhaust mechanism includes a liquid inlet pipe, the liquid inlet pipe is fixedly mounted on the shell, and the output mechanism includes a connecting pipe, which is fixedly mounted on the shell.

[0004] Furthermore, the metering mechanism includes a lining fixedly mounted in a shell, a bracket fixedly mounted on the shell, and a display screen fixedly mounted on the bracket.

[0005] Furthermore, two magnetic poles and two coils are fixedly installed in the shell. The two magnetic poles are respectively located on both sides of the lining and are in contact with the lining. The two coils are respectively 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 cables.

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

[0007] Furthermore, the exhaust mechanism includes an exhaust pipe fixedly mounted on the liquid inlet pipe, a lightweight rod slidably mounted in the exhaust pipe, a float fixedly mounted below the lightweight rod, and a plurality of exhaust holes are provided on the exhaust pipe.

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

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

[0010] Furthermore, a slag collecting slope for blocking sand and gravel in the liquid is provided in the liquid inlet pipe, and a pumping plate is slidably installed on the liquid inlet pipe.

[0011] The liquid enters from the liquid inlet pipe. When the liquid flows through the float, the liquid will lift the float and the lightweight rod. If the liquid fills the entire inner wall of the liquid inlet pipe, the float and the lightweight rod will be completely lifted, and the exhaust hole will be closed by the float. When there is air in the liquid inlet pipe, the gas will be discharged from the exhaust hole to ensure that there is no extra air in the liquid during transportation. The lower one-way plate and the upper one-way plate are responsible for gathering small streams of liquid into a whole stream of liquid. When the liquid flow reaches a certain level, the liquid will push the lower one-way plate and the lower sliding column to slide, the lower spring is compressed, and the liquid passes through the lower through hole. Similarly, the liquid will push the upper one-way plate and the upper sliding column to slide, the upper spring is compressed, and the liquid passes through the upper through hole to ensure metering accuracy. After the liquid passes through the upper through hole, it first impacts the pumping plate, and the sand and gravel in the liquid will be blocked by the slag slope, and then the liquid enters the lining. When the machine is shut down for maintenance, you only need to open the pumping plate to discharge the sand and gravel.

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

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

[0014] After the liquid is measured, it enters the connecting pipe and the outlet area is limited by the push block. When the flow pressure increases, the push block and the push column will be pushed backward, the push column spring will be stretched, and the push column will move outward, driving the outer rotating rod to rotate, thereby driving 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 subsequent 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 the outlet column to slide along the liquid outlet pipe, and the outlet spring will be 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] Compared with the prior art, the present invention has the following advantages: (1) the exhaust mechanism provided in the present invention can exhaust the gas that enters the liquid in the liquid inlet pipe, ensuring that there is no extra air in the liquid during transportation. When the liquid fills the liquid inlet pipe, the exhaust hole is closed and the liquid will not leak out; (2) the exhaust mechanism provided in the present invention can gather small flows into a whole flow by providing an upper one-way plate and a lower one-way plate, thereby ensuring metering accuracy, and at the same time remove sand and gravel in the liquid by providing a slag collecting slope; (3) the output mechanism provided in the present invention can change the opening size of the connecting pipe according to the flow rate of the outgoing liquid, thereby reducing the liquid flow rate and preventing damage to subsequent equipment due to excessive flow rate. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0017] Figure 2 Schematic diagram of the measuring mechanism structure of the present invention Figure 1 .

[0018] Figure 3 Schematic diagram of the measuring mechanism structure of the present invention Figure 2 .

[0019] Figure 4 Schematic diagram of the exhaust mechanism structure of the present invention Figure 1 .

[0020] Figure 5 Schematic diagram of the exhaust mechanism structure of the present invention Figure 2 .

[0021] Figure 6 Schematic diagram of the exhaust mechanism structure of the present invention Figure 3 .

[0022] Figure 7 Schematic diagram of the output mechanism structure of the present invention Figure 1 .

[0023] Figure 8 Schematic diagram of the output mechanism structure of the present invention Figure 2 .

[0024] Figure 9 Schematic diagram of the output mechanism structure of the present invention Figure 3 .

[0025] Reference numerals: 101-housing; 102-lining; 103-magnetic pole; 104-coil; 105-cable; 106-bracket; 107-display screen; 201-liquid inlet pipe; 202-exhaust pipe; 203-float; 204-lightweight rod; 205-exhaust hole; 206-drawing plate; 207-slag collecting slope; 208-upper one-way plate; 209-upper through hole; 210-upper sliding column; 211-upper spring; 212-lower one-way plate Toward plate; 213-lower through hole; 214-lower sliding column; 215-lower spring; 301-connecting pipe; 302-liquid outlet pipe; 303-push block; 304-push column; 305-push column spring; 306-external push frame; 307-external rotating rod; 308-bending rod; 309-inner push rod; 310-inner push plate; 311-export one-way plate; 312-export column; 313-export hole; 314-export spring; 315-extending rod. DETAILED DESCRIPTION

[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 flowmeter includes a metering mechanism for reading liquid flow, the metering mechanism includes a shell 101, the metering mechanism is provided with an exhaust mechanism for exhausting gas and an output mechanism for controlling the output flow, the exhaust mechanism includes a liquid inlet pipe 201, the liquid inlet pipe 201 is fixedly mounted on the shell 101, and the output mechanism includes a connecting pipe 301, which is fixedly mounted on the shell 101.

[0028] like Figure 2 、 Figure 3 As shown, the metering mechanism includes a lining 102 fixedly mounted in a housing 101 , a bracket 106 fixedly mounted on the housing 101 , and a display screen 107 fixedly mounted on the bracket 106 .

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

[0030] When the liquid enters the lining 102 , the two magnetic poles 103 generate a magnetic field. After the liquid passes through the magnetic field, an electromotive force is generated in the coil 104 , and the signal is transmitted to the display screen 107 via the flat cable 105 , and the display screen 107 displays the flow rate.

[0031] like Figure 4-Figure 6As shown, the exhaust mechanism includes an exhaust pipe 202 fixedly mounted on the liquid inlet pipe 201 , a lightweight rod 204 is slidably mounted in the exhaust pipe 202 , a float 203 is fixedly mounted below the lightweight rod 204 , and a plurality of exhaust holes 205 are provided on the exhaust pipe 202 .

[0032] like Figure 4-Figure 6 As shown, a lower through hole 213 is provided in the liquid inlet pipe 201, a lower sliding column 214 is slidably installed in the liquid inlet pipe 201, a lower one-way plate 212 is fixedly installed on the lower sliding column 214, and a lower spring 215 is provided between the lower sliding 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 Figure 4-Figure 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, an upper spring 211 is provided between the upper sliding column 210 and the liquid inlet pipe 201, and in the initial state, the upper one-way plate 208 closes the upper through hole 209.

[0034] like Figure 4-Figure 6 As shown, a slag collecting slope 207 for blocking sand and gravel in the liquid is provided in the liquid inlet pipe 201 , and a pumping plate 206 is slidably mounted on the liquid inlet pipe 201 .

[0035] The liquid enters from the liquid inlet pipe 201. When the liquid flows through the float 203, the liquid will lift the float 203 and the light rod 204. If the liquid fills the entire inner wall of the liquid inlet pipe 201, the float 203 and the light rod 204 will be completely lifted up, and the exhaust hole 205 will be closed by the float 203. When there is air in the liquid inlet pipe 201, the gas will be discharged from the exhaust hole 205 to ensure that there is no extra air during the liquid transportation. The lower one-way plate 212 and the upper one-way plate 208 are responsible for gathering small streams of liquid into a whole stream of liquid. When the liquid flow reaches a certain level, After that, the liquid will push the lower one-way plate 212 and the lower sliding column 214 to slide, the lower spring 215 is compressed, and the liquid passes 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 is compressed, and the liquid passes through the upper through hole 209 to ensure the measurement accuracy. When the liquid passes through the upper through hole 209, it first hits the pumping plate 206, and the sand and gravel in the liquid will be blocked by the slag collecting slope 207. Then the liquid enters the lining 102. When the machine is shut down for maintenance, the sand and gravel can be discharged by simply opening the pumping plate 206.

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

[0037] like Figure 7-Figure 9 As shown, a push block 303 is slidably installed in the connecting tube 301, a push column 304 is fixedly installed on the push block 303, the push column 304 is slidably installed with the connecting tube 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 tube 301, an extension rod 315 is fixedly installed on both sides of the connecting tube 301, two outer rotating rods 307 are rotatably installed on the outer rotating rod 307, a bending rod 308 is rotatably installed on the outer rotating rod 307, the bending rod 308 and the extension rod 315 are rotatably installed, 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 tube 301.

[0038] After the liquid is measured, it enters the connecting pipe 301 and the outlet area is limited by the push block 303. When the flow pressure increases, the push block 303 and the push column 304 will be pushed 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, thereby driving 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, and 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 the present invention is as follows: liquid enters from the liquid inlet pipe 201. When the liquid flows through the float 203, the liquid lifts the float 203 and the lightweight rod 204. If the liquid fills the entire inner wall of the liquid inlet pipe 201, the float 203 and the lightweight rod 204 are completely lifted up, and the exhaust hole 205 is closed by the float 203. When there is air in the liquid inlet pipe 201, the gas will be discharged from the exhaust hole 205 to ensure that there is no extra air during the liquid transportation. The lower one-way plate 212 and the upper one-way plate 208 are responsible for gathering small streams of liquid into a whole stream of liquid. When the liquid flow rate reaches a certain level, the liquid pushes the lower one-way plate 212 and the lower slide post 214 to slide, the lower spring 215 is compressed, and the liquid passes through the lower through hole 213. Similarly, the liquid pushes the upper one-way plate 208 and the upper slide post 210 to slide, the upper spring 211 is compressed, and the liquid passes through the upper through hole 209, ensuring metering accuracy. After the liquid passes through the upper through hole 209, it first impacts the pumping plate 206. The sand and gravel in the liquid will be blocked by the slag slope 207. Then the liquid enters the lining 102. When the machine is shut down for maintenance, the sand and gravel can be discharged by simply opening the pumping plate 206. When the liquid enters the lining 102, the two magnetic poles 103 generate a magnetic field. After the liquid passes through the magnetic field, an electromotive force is generated in the coil 104. The signal is transmitted to the display screen 107 via the cable 105, and the display screen 107 displays the flow rate. After the liquid is measured, it enters the connecting pipe 301 and the outlet area is limited by the push block 303. When the flow pressure increases, the push block 303 and the push column 304 will be pushed 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, thereby driving 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, and 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 specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes based on the technical solution and inventive concept of the present invention within the technical scope of the present invention, which should be covered by the scope of protection of the present invention.

Claims

1. An intelligent electromagnetic flowmeter, comprising a metering mechanism for reading liquid flow, characterized in that: The metering mechanism comprises a housing (101), and is provided with an exhaust mechanism for exhausting gas and an output mechanism for controlling the output flow rate. The exhaust mechanism comprises a liquid inlet pipe (201), which is fixedly mounted on the housing (101); and the output mechanism comprises a connecting pipe (301), which is fixedly mounted on the housing (101).

2. The intelligent electromagnetic flowmeter according to claim 1, characterized in that: The metering mechanism comprises a lining (102) fixedly mounted in a housing (101), a bracket (106) fixedly mounted on the housing (101), and a display screen (107) fixedly mounted 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 in the housing (101), the two magnetic poles (103) are respectively located on both sides of the lining (102), and the magnetic poles (103) are in contact with the lining (102), the two coils (104) are respectively located on the upper and lower sides of the lining (102), and the coils (104) are in contact with the lining (102), and the coils (104) are connected to the display screen (107) via the flat cable (105).

4. The intelligent electromagnetic flowmeter according to claim 1, characterized in that: The exhaust mechanism comprises an exhaust pipe (202) fixedly mounted on the liquid inlet pipe (201), a lightweight rod (204) slidably mounted in the exhaust pipe (202), a floating ball (203) fixedly mounted below the lightweight rod (204), and a plurality of exhaust holes (205) provided on the exhaust pipe (202).

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

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

7. The intelligent electromagnetic flowmeter according to claim 6, characterized in that: A slag collecting slope (207) for blocking sand and gravel in the liquid is provided in the liquid inlet pipe (201), and a pumping plate (206) is slidably mounted on the liquid inlet pipe (201).

8. The intelligent electromagnetic flowmeter according to claim 1, characterized in that: The output mechanism comprises a liquid outlet pipe (302) fixedly mounted on the connecting pipe (301), an outlet column (312) slidably mounted in the liquid outlet pipe (302), an outlet hole (313) provided in the liquid outlet pipe (302), an outlet spring (314) provided between the outlet column (312) and the liquid outlet pipe (302), an outlet one-way plate (311) fixedly mounted on the outlet column (312), and in an initial state, the outlet one-way plate (311) closes the outlet hole (313).

9. The intelligent electromagnetic flowmeter according to claim 8, characterized in that: A push block (303) is slidably mounted in the connecting tube (301), a push column (304) is fixedly mounted on the push block (303), the push column (304) and the connecting tube (301) are slidably mounted, an external push frame (306) is fixedly mounted on the push column (304), a push column spring (305) is provided between the external push frame (306) and the connecting tube (301), an extension rod (315) is fixedly mounted on both sides of the connecting tube (301), two external rotating rods (307) are rotatably mounted on the external rotating rod (307), a bending rod (308) is rotatably mounted on the external rotating rod (307), the bending rod (308) and the extension rod (315) are rotatably mounted, an internal push rod (309) is rotatably mounted on the extension rod (315), an internal push plate (310) is rotatably mounted on the internal push rod (309), and the internal push plate (310) and the connecting tube (301) are slidably mounted.

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