CN114623887A - Novel electromagnetic flowmeter - Google Patents
Novel electromagnetic flowmeter Download PDFInfo
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- CN114623887A CN114623887A CN202210371941.0A CN202210371941A CN114623887A CN 114623887 A CN114623887 A CN 114623887A CN 202210371941 A CN202210371941 A CN 202210371941A CN 114623887 A CN114623887 A CN 114623887A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/56—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using electric or magnetic effects
- G01F1/58—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using electric or magnetic effects by electromagnetic flowmeters
- G01F1/584—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using electric or magnetic effects by electromagnetic flowmeters constructions of electrodes, accessories therefor
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/05—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects
- G01F1/20—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by detection of dynamic effects of the flow
- G01F1/22—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by detection of dynamic effects of the flow by variable-area meters, e.g. rotameters
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/72—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
- G01N27/74—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables of fluids
Abstract
A novel electromagnetic flowmeter comprises a cylindrical pipe body, wherein a low-conductivity fluid flow mechanism is arranged on the pipe body, the low-conductivity fluid flow mechanism comprises two first electrodes on the inner wall of the pipe body, a U-shaped guide rod is arranged between the two first electrodes in a sliding mode and is connected with two sliding seats in a sliding mode, and a first spring is arranged on the U-shaped guide rod; a power supply and a hollow box body are fixed on the outer wall of the pipe body, an electromagnet is fixed above the hollow box body, an inverted U-shaped magnetic rod is arranged on the hollow box body in a sliding mode, the open end of the inverted U-shaped magnetic rod penetrates through the hollow box body downwards and is fixed with an arc-shaped floater, and a second spring is arranged on the part, located on the inner side of the hollow box body, of the inverted U-shaped magnetic rod; a rotating wheel and an indicating disc are arranged on the top surface of the hollow box body, the rotating wheel is in friction rolling connection with the inverted U-shaped magnetic rod, and a pointer is coaxially fixed on a rotating shaft of the rotating wheel; the two first electrodes, the electromagnet and the power supply are connected in series. The invention realizes the measurement of low-conductivity fluid and can also measure the content of metal impurities in the high-conductivity fluid.
Description
Technical Field
The invention belongs to the field of flowmeters, and particularly relates to a novel electromagnetic flowmeter.
Background
Electromagnetic flowmeters are new types of flow meters that have been rapidly developed with the development of electronics. The electromagnetic flowmeter is an instrument which measures the flow of a conductive fluid according to the electromotive force induced when the conductive fluid passes through an external magnetic field by applying the electromagnetic induction principle, but the existing electromagnetic flowmeter cannot measure liquid with low conductivity, such as petroleum products, solvents of agricultural production systems and the like, and cannot measure gas, steam and liquid containing more large bubbles. For example, CN105509823A discloses an electromagnetic flowmeter capable of avoiding noise of fluid particles, in which an electrode in a measuring tube of the electromagnetic flowmeter is changed to be composed of a section of solid electrode and a section of liquid electrode in tandem, and the liquid electrode is in contact with the liquid to be measured in the measuring tube. The liquid electrode part is composed of one or a plurality of holes filled with conductive liquid and communicated from the inner wall surface of the measuring pipe to the corresponding solid electrode. The conductive liquid of the liquid electrode may be a liquid formed by the fluid to be measured poured into the reservoir. Thus, particles in the fluid to be measured do not directly touch the solid electrode when flowing in the measuring tube, and noise generated by the particles is hardly generated on the signal output by the solid electrode. Meanwhile, the induced potential generated by the fluid to be measured in the measuring tube can be transmitted to the solid electrode through the liquid electrode. The signal measuring unit of the electromagnetic flowmeter is connected to the solid electrode to measure the induced potential signal generated by the flowing of the liquid to be measured, but the prior art does not solve the technical problem.
Disclosure of Invention
The invention aims to provide a novel electromagnetic flowmeter, which can realize the measurement of low-conductivity fluid and can also measure the content of metal impurities in the fluid for high-conductivity fluid.
The technical scheme adopted by the invention is as follows:
a novel electromagnetic flowmeter comprises a cylindrical pipe body, wherein a low-conductivity fluid flow mechanism is arranged on the pipe body, the low-conductivity fluid flow mechanism comprises two first electrodes arranged on the inner wall of the pipe body, a U-shaped guide rod is arranged between the two first electrodes in a sliding mode, two sliding seats are further arranged on the inner wall of the pipe body, the U-shaped guide rod is connected with the two sliding seats in a sliding mode, and a first spring is arranged on the U-shaped guide rod;
a power supply and a hollow box body are fixed on the outer wall of the pipe body, an electromagnet is fixed above the hollow box body, an inverted U-shaped magnetic rod is arranged on the hollow box body in a sliding mode, the open end of the inverted U-shaped magnetic rod penetrates through the hollow box body downwards and is fixed with an arc-shaped floater, and a second spring is arranged on the part, located on the inner side of the hollow box body, of the inverted U-shaped magnetic rod; a rotating wheel and an indicating disc are arranged on the top surface of the hollow box body, the rotating wheel is in friction rolling connection with the inverted U-shaped magnetic rod, and a pointer is coaxially fixed on a rotating shaft of the rotating wheel; the two first electrodes, the electromagnet and the power supply are connected in series.
When no fluid flows through the interior of the pipe body, the two first electrodes are communicated through the U-shaped guide rod, so that the electromagnet is kept in a powered state, and the electromagnet attracts the inverted U-shaped magnetic rod, so that the arc-shaped floater is positioned in the cavity of the hollow box body; when low conductive fluid or non-conductive fluid flows, the U-shaped guide rod is pushed towards the sliding seat, so that the inverted U-shaped guide rod is separated from the two first electrodes, and the electromagnet is powered off, at the moment, the U-shaped guide rod is equivalent to the switching action, after the power is off, the inverted U-shaped magnetic rod is loosened by the electromagnet, the inverted U-shaped magnetic rod and the arc-shaped floater move downwards under the action of a second spring and gravity, the arc-shaped floater is positioned in the pipe body, the fluid passes through the upper surface and the lower surface of the arc-shaped floater, the shape of the arc-shaped floater is similar to that of an airplane wing, when the fluid flows up and down, the pressure below the floater is greater than the upper pressure, pressure difference is generated on the upper surface and the lower surface, and then the floater moves upwards under the pressure difference, during the movement, the friction drives the rotating wheel to rotate, so that a pointer coaxially connected with the rotating wheel indicates a certain angle on the indicating dial, and the angle is converted, the flow rate at that time can be obtained; the faster the fluid speed, the greater the pressure difference, the greater the ascending distance of the inverted U-shaped magnetic rod, and the greater the pointer angle.
Furthermore, a conductive fluid flow mechanism is also arranged on the tube body, the conductive fluid flow mechanism comprises two second electrodes arranged on one side of the first electrode, the two second electrodes are not mutually connected in the tube, and the two second electrodes are connected with a resistor and an ammeter in series outside the tube; two opposite square permanent magnets are arranged on the outer side of the pipe body.
When the conductive fluid flows through the tube body, namely a lead is connected between the two second electrodes, the fluid flows through the tube body, the fluid cuts magnetic lines between the two square permanent magnets, current can be generated between the two second electrodes, the magnitude of the current reflects the magnitude of the flowing speed, and the flowing speed of the conductive fluid is obtained through conversion. In the process, although the U-shaped guide rod is separated from the first electrode under the impact of the flow velocity, the fluid can still conduct electricity, namely the two first electrodes are still conducted, so that the arc-shaped floater is still positioned in the hollow box body and does not act, and at the moment, the flow velocity is measured only by the two second electrodes. By respectively arranging two first electrodes and two second electrodes and respectively connected components, the flow rate of the conductive fluid can be measured, and the flow rate of the non-conductive fluid (or the low-conductive fluid) can also be measured.
Furthermore, two sides of the two square permanent magnets are respectively provided with a hydraulic cylinder, the hydraulic cylinders are fixed on the outer wall of the pipe body, and telescopic rods of the hydraulic cylinders are fixedly connected with the square permanent magnets; a circular cavity is also arranged on the outer wall of the tube body, a thermal expansion and cold contraction type fluid is filled in the circular cavity, and the hydraulic cylinder is communicated with the circular cavity; the outer wall of the pipe body is fixed with a motor, the motor is connected with a circular fan in a rotating mode, a rotating shaft of the motor is fixed with a friction wheel, and the friction wheel is connected with the circular fan in a friction mode.
When flowing through high temperature fluid, can cause the demagnetization phenomenon to the permanent magnet, consequently, fill the thermal expansion cold shrinkage type fluid in the ring cavity, take place the inflation when meetting high temperature, flow in the pneumatic cylinder, outwards promote two square permanent magnets, keep away from the body to reduce the damage that high temperature produced. Meanwhile, the motor drives the circular fan to rotate, and auxiliary cooling is carried out.
Further, a coil is wound on the outer wall of the tube body, the coil is connected to a power supply, and a power meter (not shown) is connected to the circuit. When the fluid containing the metal impurities flows through the interior of the coil, eddy current is formed to generate heat, the higher the content of the metal impurities is, the more heat is generated, the more energy is consumed, the larger the value on the power meter is, and the content of the metal impurities is determined according to the value change of the power meter.
Furthermore, a circular ring permanent magnet is arranged on the outer side of the pipe body. The purpose of setting up the coil is the measurement metal impurity content, sets up the ring permanent magnet, is further refine, measures magnetic impurity content. When fluid contains more magnetic impurities, the fluid can be adsorbed on the inner side of the pipe wall by the annular permanent magnet, after accumulation is carried out within a certain time, such as one hour, the flow speed of the fluid passing through the position is increased, the increment is related to the quantity of the impurities adsorbed by the accumulation, and the content of the magnetic impurities in the fluid can be determined through calculation.
Furthermore, a pipe box is arranged on the outer side of the pipe body, a ventilation groove is formed in the pipe box, and a fixing assembly is arranged on the pipe box.
Furthermore, the fixing assembly comprises a T-shaped mounting plate fixed on the side wall of the tube box, two first sleeves are horizontally and rotatably arranged on the T-shaped mounting plate, a first gear disc is respectively fixed at the adjacent ends of the two first sleeves, a second gear disc is connected between the two first gear discs in a meshing manner, the inner core of the first sleeve is in key connection with the shell, and a third gear disc is fixed at the end part of the inner core of the first sleeve;
the T-shaped mounting plate is provided with three sliding grooves, three sliding frames are arranged on the T-shaped mounting plate in a sliding mode, bolts are connected to the sliding frames in a threaded mode and penetrate through the sliding grooves, a fourth gear disc is fixed to the end portion of each bolt, and the fourth gear disc is connected with the third gear disc in a meshed mode;
an inner angle cylinder is fixed above the second gear disc, and a fifth gear disc is coaxially fixed below the second gear disc; the T-shaped mounting plate is further rotatably connected with a second sleeve, the structure of the second sleeve is the same as that of the first sleeve, a sixth gear disc and a seventh gear disc are fixed at two ends of the second sleeve respectively, the sixth gear disc is meshed with the fifth gear disc, and the seventh gear disc is meshed with a fourth gear disc below the T-shaped mounting plate.
When the flowmeter is ready to be fixed, three holes are drilled on a fixed object, the sliding frame is adjusted by manual sliding, so that three bolts correspond to the positions of the drilled holes, the inner corner cylinder is rotated by a wrench to drive the second gear disc to rotate, further drive the second sleeve and the first sleeve to rotate, further drive the third fourth gear disc to rotate, and screw the three bolts into the three holes.
The invention has the beneficial effects that:
the flow velocity of non-conductive fluid (or low-conductive fluid) can be measured by arranging two first electrodes and matching with a floater, a rotating wheel and other parts; two second electrodes are arranged and matched with the permanent magnet to realize the flow velocity measurement of the conductive fluid; the electrified coil is arranged, and the content of metal impurities in the fluid can be calculated according to the power consumption condition; the annular permanent magnet is arranged, and the content of the magnetic impurities can be obtained through the change of the adsorption quantity and the flow rate of the magnetic impurities.
Drawings
FIG. 1 is a schematic structural view of a tubeless housing of the present invention;
FIG. 2 is a schematic view of the construction of the present invention without the duct box cover;
FIG. 3 is a schematic cross-sectional view of the present invention;
FIG. 4 is a schematic view of the present invention with the coil and ring permanent magnet removed;
FIG. 5 is a partially exploded schematic view of a low conductance fluid flow mechanism;
FIG. 6 is a partial schematic view of a low conductance fluid flow mechanism;
FIG. 7 is a schematic view of the attachment of the securing assembly to the tube box;
FIG. 8 is an enlarged view of portion A of FIG. 2;
FIG. 9 is a partial schematic view of the securing assembly;
FIG. 10 is an enlarged view of a portion of the low conductance fluid flow mechanism;
in the figures, 1, a pipe body, 2, a low conductive fluid flow mechanism, 201, a first electrode, 202, a U-shaped guide rod, 203, a sliding seat, 204, a first spring, 205, a power supply, 206, a hollow box body, 207, an electromagnet, 208, an inverted U-shaped magnetic rod, 209, an arc-shaped floater, 210, a second spring, 211, a rotating wheel, 212, an indicating disc, 213, a pointer, 3, a conductive fluid flow mechanism, 301, a second electrode, 302, a square permanent magnet, 303, a hydraulic cylinder, 304, a circular ring cavity, 305, a motor, 306, a circular ring fan, 307, a friction wheel, 4, a coil, 5, a circular ring permanent magnet, 6, a pipe box, 601, a ventilation groove, 7, a fixing component, 701, a T-shaped mounting plate, 702, a first sleeve, 703, a first gear disc, 704, a second gear disc, 705, a third gear disc, 706, a sliding groove, 707, a sliding frame, 708, a bolt, 709, a fourth gear disc, 710, an inner corner cylinder, 711. no. five toothed disc, 712, No. two sleeves, 713, No. six toothed disc, 714, seven toothed disc.
Detailed Description
As shown in fig. 1 to 10, a novel electromagnetic flowmeter includes a cylindrical pipe body 1, a low-conductivity fluid flow mechanism 2 is disposed on the pipe body 1, the low-conductivity fluid flow mechanism 2 includes two first electrodes 201 disposed on an inner wall of the pipe body 1, a U-shaped guide rod 202 is slidably disposed between the two first electrodes 201, two sliders 203 are further disposed on the inner wall of the pipe body 1, the U-shaped guide rod 202 is slidably connected to the two sliders 203, and a first spring 204 is disposed on the U-shaped guide rod 202; a power supply 205 and a hollow box 206 are fixed on the outer wall of the pipe body 1, an electromagnet 207 is fixed above the hollow box 206, an inverted U-shaped magnetic rod 208 is arranged on the hollow box 206 in a sliding manner, the open end of the inverted U-shaped magnetic rod 208 downwards penetrates through the hollow box 206 and is fixed with an arc-shaped floater 209, and a second spring 210 is arranged at the part, located on the inner side of the hollow box 206, of the inverted U-shaped magnetic rod 208; a rotating wheel 211 and an indicating disc 212 are arranged on the top surface of the hollow box body 206, the rotating wheel 211 is in friction rolling connection with the inverted U-shaped magnetic rod 208, and a pointer 213 is coaxially fixed on a rotating shaft of the rotating wheel 211; the two first electrodes 201 and the electromagnet 207 are connected in series with the power supply 205.
When no fluid flows through the interior of the tube body, the two first electrodes 201 are communicated through the U-shaped guide rod 202, so that the electromagnet 207 is kept in an electrified state, the electromagnet 207 attracts the inverted U-shaped magnetic rod 208, and the arc-shaped floater 209 is positioned in the cavity of the hollow box body 206; when low-conductivity fluid or non-conductivity fluid flows through, the U-shaped guide rod 202 is pushed towards the sliding seat 203, so that the inverted U-shaped guide rod 202 is separated from the two first electrodes 201, the electromagnet 207 is powered off, at the moment, the U-shaped guide rod 202 acts as a switch, after the power is off, the electromagnet 207 releases the inverted U-shaped magnetic rod 208, the inverted U-shaped magnetic rod 208 and the arc-shaped floater 209 move downwards under the action of the second spring 210 and gravity, the arc-shaped floater 209 is positioned in the pipe body 1, the fluid passes through the upper surface and the lower surface of the arc-shaped floater 209, the shape of the arc-shaped floater 209 is similar to that of an airplane wing, when the fluid flows through from top to bottom, the pressure below the floater is greater than the pressure above, a pressure difference is generated on the upper surface and the lower surface, and then the floater moves upwards under the pressure difference, and during movement, friction drives the rotating wheel 211 to rotate, so that a pointer 213 coaxially connected with the rotating wheel 211 indicates a certain angle on the indicating disc 212, converting the angle to obtain the flow velocity at the moment; the faster the fluid velocity, the greater the pressure differential, the greater the distance the inverted U-shaped magnetic rod 208 rises, and the greater the angle of the pointer 213.
The tube body 1 is also provided with a conductive fluid flow mechanism 3, the conductive fluid flow mechanism 3 comprises two second electrodes 301 arranged on one side of the first electrode 201, the two second electrodes 301 are not mutually connected in the tube, and the two second electrodes 301 are connected in series with a resistor and an ammeter resistor outside the tube and are not shown; two opposite square permanent magnets 302 are arranged outside the pipe body 1.
When the conductive fluid flows through the tube body 1, the conductive fluid is equivalent to a lead connected between the two second electrodes 301, the fluid flows through the lead, and the fluid cuts magnetic lines between the two square permanent magnets 302, so that current is generated between the two second electrodes 301, the magnitude of the current reflects the magnitude of the flow speed, and the flow speed of the conductive fluid is obtained through conversion. In the process, although the U-shaped guide rod 202 is separated from the first electrode 201 under the impact of the flow velocity, the fluid can still conduct electricity, namely, the two first electrodes 201 are still conducted, so that the arc-shaped floater 209 is still positioned in the hollow box body 206 and does not act, and at the moment, the flow velocity is measured by only the two second electrodes 301. By providing two electrodes 201 and two electrodes 301, respectively, and the components connected to each, both the flow rate of the conducting fluid and the flow rate of the non-conducting fluid (or low conducting fluid) can be measured.
Two sides of the two square permanent magnets 302 are respectively provided with a hydraulic cylinder 303, the hydraulic cylinder 303 is fixed on the outer wall of the pipe body 1, and a telescopic rod of the hydraulic cylinder 303 is fixedly connected with the square permanent magnets 302; the outer wall of the pipe body 1 is also provided with a circular cavity 304, the circular cavity 304 is filled with expansion and contraction fluid, and the hydraulic cylinder 303 is communicated with the circular cavity 304; a motor 305 is fixed on the outer wall of the pipe body 1, and is rotatably connected with a circular fan 306, a friction wheel 307 is fixed on the rotating shaft of the motor 305, and the friction wheel 307 is in friction connection with the circular fan 306.
When high-temperature fluid flows, the permanent magnet is demagnetized, so that the circular cavity 304 is filled with thermal expansion and cold contraction fluid, which expands when encountering high temperature and flows into the hydraulic cylinder 303 to push the two square permanent magnets 302 outwards to keep away from the pipe body 1, thereby reducing the damage caused by high temperature. Meanwhile, the motor 305 drives the ring fan 306 to rotate, so as to assist in cooling.
A coil 4 is wound around the outer wall of the tube body 1, and the coil 4 is connected to a power source 205, while a power meter (not shown) is connected to the wire. When the fluid containing the metal impurities flows through the interior of the coil, eddy current is formed to generate heat, the higher the content of the metal impurities is, the more heat is generated, the more energy is consumed, the larger the value on the power meter is, and the content of the metal impurities is determined according to the value change of the power meter.
The outer side of the tube body 1 is provided with a circular ring permanent magnet 5. The coil 4 is arranged for measuring the content of metal impurities, and the annular permanent magnet 5 is arranged for further refining and measuring the content of magnetic impurities. When the fluid contains more magnetic impurities, the fluid can be adsorbed on the inner side of the pipe wall by the annular permanent magnet 5, after the fluid is accumulated within a certain time, such as one hour, the flow speed of the fluid passing through the position is increased, the increase is related to the amount of the impurities accumulated and adsorbed, and the content of the magnetic impurities in the fluid can be determined through calculation.
A pipe box 6 is arranged outside the pipe body 1, a ventilation groove 601 is arranged on the pipe box 6, and a fixing component 7 is arranged on the pipe box 6. The fixing component 7 comprises a T-shaped mounting plate 701 fixed on the side wall of the tube box 6, two first sleeves 702 are horizontally and rotatably arranged on the T-shaped mounting plate 701, first gear discs 703 are respectively fixed at the adjacent ends of the two first sleeves 702, a second gear disc 704 is connected between the two first gear discs 703 in a meshing manner, the inner core of the first sleeve 702 is in key connection with the shell, and a third gear disc 705 is fixed at the end part of the inner core of the first sleeve 702.
The T-shaped mounting plate 701 is provided with three sliding grooves 706, three sliding frames 707 are arranged on the T-shaped mounting plate 701 in a sliding mode, bolts 708 are connected to the sliding frames 707 in a threaded mode, the bolts 708 simultaneously penetrate through the sliding grooves 706, a fourth gear disc 709 is fixed to the end portion of each bolt 708, and the fourth gear disc 709 is connected with the third gear disc 705 in a meshed mode; an inner angle cylinder 710 is fixed above the second gear disc 704, and a fifth gear disc 711 is coaxially fixed below the second gear disc 704; a second sleeve 712 is rotatably connected to the T-shaped mounting plate 701, the structure of the second sleeve 712 is the same as that of the first sleeve 702, a sixth gear disc 713 and a seventh gear disc 714 are fixed at two ends of the second sleeve 712 respectively, the sixth gear disc 713 is in meshed connection with the fifth gear disc 711, and the seventh gear disc 714 is in meshed connection with a fourth gear disc 709 below the T-shaped mounting plate 701.
When the flowmeter is ready to be fixed, three holes are drilled in a fixed object, the sliding frame 707 is adjusted by manual sliding, so that the three bolts 708 correspond to the positions of the drilled holes, the inner corner cylinder 710 is rotated by a wrench to drive the second gear disc 704 to rotate, further drive the second sleeve 712 and the first sleeve 702 to rotate, further drive the three fourth gear discs 709 to rotate, and screw the three bolts 708 into the three holes.
Claims (7)
1. The novel electromagnetic flowmeter is characterized by comprising a cylindrical pipe body (1), wherein a low-conductivity fluid flow mechanism (2) is arranged on the pipe body (1), the low-conductivity fluid flow mechanism (2) comprises two first electrodes (201) arranged on the inner wall of the pipe body (1), a U-shaped guide rod (202) is arranged between the two first electrodes (201) in a sliding manner, two sliding seats (203) are further arranged on the inner wall of the pipe body (1), the U-shaped guide rod (202) is connected with the two sliding seats (203) in a sliding manner, and a first spring (204) is arranged on the U-shaped guide rod (202);
a power supply (205) and a hollow box body (206) are fixed on the outer wall of the pipe body (1), an electromagnet (207) is fixed above the hollow box body (206), an inverted U-shaped magnetic rod (208) is also arranged on the hollow box body (206) in a sliding mode, the open end of the inverted U-shaped magnetic rod (208) penetrates through the hollow box body (206) downwards and is fixed with an arc-shaped floater (209), and a second spring (210) is arranged on the part, located on the inner side of the hollow box body (206), of the inverted U-shaped magnetic rod (208); a rotating wheel (211) and an indicating disc (212) are arranged on the top surface of the hollow box body (206), the rotating wheel (211) is in friction rolling connection with the inverted U-shaped magnetic rod (208), and a pointer (213) is coaxially fixed on a rotating shaft of the rotating wheel (211);
the two first electrodes (201), the electromagnet (207) and the power supply (205) are connected in series.
2. A new type of electromagnetic flowmeter as defined in claim 1 characterized by that there is also a conducting fluid flow mechanism (3) on the tube (1), the conducting fluid flow mechanism (3) comprising two electrodes (301) on one side of the first electrode (201), the two electrodes (301) are not connected to each other inside the tube, the two electrodes (301) are connected in series with a resistor and an ammeter outside the tube; two opposite square permanent magnets (302) are arranged on the outer side of the pipe body (1).
3. A novel electromagnetic flowmeter as claimed in claim 2 characterized in that a hydraulic cylinder (303) is provided on each of the two sides of the square permanent magnet (302), the hydraulic cylinder (303) is fixed on the outer wall of the pipe body (1), the telescopic rod of the hydraulic cylinder (303) is fixedly connected with the square permanent magnet (302); the outer wall of the pipe body (1) is also provided with a circular cavity (304), the circular cavity (304) is filled with thermal expansion and cold contraction type fluid, and the hydraulic cylinder (303) is communicated with the circular cavity (304); a motor (305) is fixed on the outer wall of the pipe body (1), a circular fan (306) is connected to the outer wall of the pipe body in a rotating mode, a friction wheel (307) is fixed on a rotating shaft of the motor (305), and the friction wheel (307) is in friction connection with the circular fan (306).
4. A new type of electromagnetic flowmeter as claimed in claim 1, characterized in that the coil (4) is wound on the outer wall of the tubular body (1), the coil (4) being connected to a power supply (205) and a power meter being connected to the line.
5. A new type of electromagnetic flowmeter as claimed in claim 1 characterized in that the outside of the tube (1) is provided with a ring permanent magnet (5).
6. A novel electromagnetic flowmeter as claimed in claim 2 wherein a tube box (6) is provided outside the tube body (1), the tube box (6) is provided with a gas permeable groove (601), and the tube box (6) is provided with a fixing member (7).
7. The novel electromagnetic flowmeter as claimed in claim 6, characterized in that the fixing assembly (7) comprises a T-shaped mounting plate (701) fixed on the side wall of the tube box (6), two first sleeves (702) are horizontally and rotatably arranged on the T-shaped mounting plate (701), a first gear plate (703) is respectively fixed at the adjacent ends of the two first sleeves (702), a second gear plate (704) is connected between the two first gear plates (703) in a meshing manner, the inner core of the first sleeve (702) is in key connection with the shell, and a third gear plate (705) is fixed at the end part of the inner core of the first sleeve (702);
the T-shaped mounting plate (701) is provided with three sliding grooves (706), three sliding frames (707) are arranged on the T-shaped mounting plate (701) in a sliding mode, bolts (708) are connected to the sliding frames (707) in a threaded mode, the bolts (708) penetrate through the sliding grooves (706) at the same time, a fourth gear disc (709) is fixed to the end portion of each bolt (708), and the fourth gear disc (709) is connected with a third gear disc (705) in a meshed mode;
an inner angle cylinder (710) is fixed above the second gear disc (704), and a fifth gear disc (711) is coaxially fixed below the second gear disc (704); a second sleeve (712) is further rotatably connected to the T-shaped mounting plate (701), the structure of the second sleeve (712) is the same as that of the first sleeve (702), a sixth gear disc (713) and a seventh gear disc (714) are fixed to two ends of the second sleeve (712) respectively, the sixth gear disc (713) is in meshed connection with the fifth gear disc (711), and the seventh gear disc (714) is in meshed connection with a fourth gear disc (709) below the T-shaped mounting plate (701).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210371941.0A CN114623887B (en) | 2022-04-11 | 2022-04-11 | Novel electromagnetic flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210371941.0A CN114623887B (en) | 2022-04-11 | 2022-04-11 | Novel electromagnetic flowmeter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114623887A true CN114623887A (en) | 2022-06-14 |
| CN114623887B CN114623887B (en) | 2022-12-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210371941.0A Active CN114623887B (en) | 2022-04-11 | 2022-04-11 | Novel electromagnetic flowmeter |
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| CN206609483U (en) * | 2017-04-01 | 2017-11-03 | 开封青天伟业流量仪表有限公司 | A kind of electromagnetic flowmeter for being easy to sensor maintenance |
| CN207423281U (en) * | 2017-09-06 | 2018-05-29 | 河北方圆标准计量技术开发有限公司 | A kind of electromagnetic flowmeter with converter link structure |
| CN211085358U (en) * | 2019-12-09 | 2020-07-24 | 开封市盛达水表有限公司 | Plug-in electromagnetic water meter movement |
| CN215114687U (en) * | 2021-07-06 | 2021-12-10 | 苏州贝特智能仪表有限公司 | Electromagnetic flowmeter capable of measuring low-conductivity liquid |
| CN215338440U (en) * | 2021-01-27 | 2021-12-28 | 开封和利时工控仪表有限公司 | Bidirectional metering electromagnetic flowmeter |
| CN114062179A (en) * | 2022-01-18 | 2022-02-18 | 深圳市鑫宏扬包装制品有限公司 | Wear-resisting testing arrangement of carton printing ink |
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2022
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| DE19612369A1 (en) * | 1995-04-28 | 1996-10-31 | Fronius Schweismaschinen Kg Au | Welding unit with a current source, a welding torch and a cooling installation |
| CN202693044U (en) * | 2012-07-19 | 2013-01-23 | 浙江迪元仪表有限公司 | Horizontal float flow meter |
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| CN105509823A (en) * | 2015-12-02 | 2016-04-20 | 上海大学 | Electromagnetic flowmeter |
| CN206609483U (en) * | 2017-04-01 | 2017-11-03 | 开封青天伟业流量仪表有限公司 | A kind of electromagnetic flowmeter for being easy to sensor maintenance |
| CN207423281U (en) * | 2017-09-06 | 2018-05-29 | 河北方圆标准计量技术开发有限公司 | A kind of electromagnetic flowmeter with converter link structure |
| CN211085358U (en) * | 2019-12-09 | 2020-07-24 | 开封市盛达水表有限公司 | Plug-in electromagnetic water meter movement |
| CN215338440U (en) * | 2021-01-27 | 2021-12-28 | 开封和利时工控仪表有限公司 | Bidirectional metering electromagnetic flowmeter |
| CN215114687U (en) * | 2021-07-06 | 2021-12-10 | 苏州贝特智能仪表有限公司 | Electromagnetic flowmeter capable of measuring low-conductivity liquid |
| CN114062179A (en) * | 2022-01-18 | 2022-02-18 | 深圳市鑫宏扬包装制品有限公司 | Wear-resisting testing arrangement of carton printing ink |
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| CN114623887B (en) | 2022-12-13 |
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