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CN-122015987-A - Novel electromagnetic flowmeter

CN122015987ACN 122015987 ACN122015987 ACN 122015987ACN-122015987-A

Abstract

The invention discloses a novel electromagnetic flowmeter, which relates to the technical field of electromagnetic flowmeters and comprises a flowmeter body and a plastic pipeline, wherein the flowmeter body is square in appearance, an input end of the flowmeter body is provided with an adjusting cover, and an inner cavity of the adjusting cover is provided with a sealing component; the invention is based on a square flowmeter body, the adjusting cover and the sealing component are matched to realize accurate adaptation of plastic pipelines with different specifications, meanwhile, the initial vortex is dispersed and the water flow parameters are adjusted through the adjustable rectangular opening, the double-symmetrical flow guiding component is used for further cutting the rotary water flow into uniform parallel flow states and reducing reflux interference in cooperation with the design of the horn mouth at the output end, the linkage tension component is used for converting the water flow thrust into upward tension, the self weight of the equipment is actively shared, deformation and leakage of the plastic pipelines can be avoided without depending on a single light material, the cooperative promotion of the stability of a flow field, the adaptation of the pipelines and the measurement precision is finally realized, and the flow detection requirement of the plastic pipelines under multiple conditions is adapted.

Inventors

  • GAO JUN

Assignees

  • 威海前晋空调设备有限公司

Dates

Publication Date
20260512
Application Date
20260211

Claims (8)

  1. 1. The novel electromagnetic flowmeter is characterized by comprising a flowmeter body (1) and a plastic pipeline, wherein the appearance of the flowmeter body (1) is square, an adjusting cover (2) is arranged at the input end of the flowmeter body (1), a sealing component (3) is arranged in an inner cavity of the adjusting cover (2), the sealing component (3) is communicated with the plastic pipeline, two symmetrically-arranged flow guide components (4) are arranged in the inner cavity of the flowmeter body (1), and a linkage tension component (5) is arranged at the output end of the flowmeter body (1).
  2. 2. The novel electromagnetic flowmeter according to claim 1, wherein the input end and the output end of the adjusting cover (2) are provided with threaded connecting sleeves (21), and the other ends of the threaded connecting sleeves (21) are communicated with a plastic pipeline.
  3. 3. The novel electromagnetic flowmeter according to claim 2, wherein the sealing assembly (3) comprises a plurality of limit sliding rails (31), the limit sliding rails (31) are all connected to the side wall of the inner cavity of the adjusting cover (2), the limit sliding rails (31) are all connected with sliding guide blocks (32) in a sliding manner, the other ends of the sliding guide blocks (32) are all connected with adjusting baffles (33), the adjusting baffles (33) are arranged in a rectangular array shape and are arranged in the inner cavity of the adjusting cover (2), and the adjusting baffles (33) are mutually in sliding fit; The adjustable sliding device comprises an adjusting cover (2), wherein a sliding way is arranged at the top end of the adjusting cover (2), an adjusting sliding block (34) is arranged in an inner cavity of the sliding way, a tooth slot is arranged at the top end of the adjusting sliding block (34), one end of the adjusting sliding block (34) is connected to an adjacent adjusting baffle (33), an adjusting screw (35) is connected to the other end of the adjusting sliding block (34) in a threaded manner, the adjusting screw (35) is rotationally connected to the top end of the adjusting cover (2), and an adjusting knob (36) is arranged at the other end of the adjusting screw (35); The top of adjusting cover (2) is equipped with location cover (37), the inner chamber of location cover (37) is connected with location strip (38) through the spring, one side of location strip (38) with tooth's socket meshing, the opposite side of location strip (38) is equipped with the pull rod.
  4. 4. A novel electromagnetic flowmeter according to claim 3, wherein the end of the adjusting cover (2) connected with the plastic pipeline is a circular connecting port, and the end of the adjusting cover (2) communicated with the flowmeter body (1) is a square connecting port.
  5. 5. The novel electromagnetic flowmeter according to claim 4, wherein the flow guiding assembly (4) comprises a plurality of longitudinal flow guiding strips (41), the longitudinal flow guiding strips (41) are arranged in an array, a plurality of transverse flow guiding strips (42) are arranged on the longitudinal flow guiding strips (41), the transverse flow guiding strips (42) are vertically and transversely connected with the longitudinal flow guiding strips (41) in a staggered manner, and both ends of the longitudinal flow guiding strips (41) and the transverse flow guiding strips (42) are arranged at tips; The longitudinal guide strips (41) and the transverse guide strips (42) are connected at staggered connection positions together, and the guide cone heads (43) are arranged in a gradually changing shape with a cambered surface with a large front end and a small rear end.
  6. 6. The novel electromagnetic flowmeter according to claim 1, wherein the output port of the flowmeter body (1) is a horn mouth with a front end contracted and a rear end expanded, and the inner side wall of the output port of the flowmeter body (1) is provided with an arc-shaped clamping groove, and the inner side wall of the arc-shaped clamping groove is provided with a hydraulic hole.
  7. 7. The novel electromagnetic flowmeter according to claim 6, wherein the linkage tension assembly (5) comprises two arc-shaped stress plates (51) hinged to the inner cavity of the arc-shaped clamping groove, the arc-shaped stress plates (51) are arranged in an arc shape, one end of each arc-shaped stress plate (51) is hinged with a hydraulic push rod (52), one end of each hydraulic push rod (52) is movably inserted into the inner cavity of each hydraulic hole, one end of each hydraulic push rod (52) located in each hydraulic hole is movably connected with a sealing piston (53), the other end of each hydraulic hole is communicated with a hydraulic oil tank (54), and a transmission gear box (541) is arranged at the top end of each hydraulic oil tank (54); The hydraulic oil tank (54) is installed on the top of the flowmeter body (1), hydraulic oil is sealed to be equipped with in the inner chamber of hydraulic oil tank (54), the top intercommunication of hydraulic oil tank (54) is equipped with pressure conduction section of thick bamboo (55), the inner chamber swing joint of pressure conduction section of thick bamboo (55) has conduction piston rod (56), the top of conduction piston rod (56) is equipped with U-shaped transmission rack (57), the other end activity of U-shaped transmission rack (57) is pegged graft in the inner chamber of transmission gearbox (541), the inner chamber of transmission gearbox (541) is equipped with gear and wire rope connecting axle (542), transmission gearbox (541) are connected through gear and wire rope connecting axle (542) transmission.
  8. 8. The novel electromagnetic flowmeter of claim 7, wherein the top end of the flowmeter body (1) is provided with a signal converter (11), the inner cavity of the flowmeter body (1) is provided with a sensor exciting coil (12), and the sensor exciting coil (12) is located between the two flow guiding components (4).

Description

Novel electromagnetic flowmeter Technical Field The invention relates to the technical field of electromagnetic flow meters, in particular to a novel electromagnetic flow meter. Background An electromagnetic flowmeter of application number CN201510084844.3 includes a measurement conduit made of an insulating material having a permeability that satisfies a predetermined condition, and at least one pair of electrodes mounted on the measurement conduit and configured to sense an electric potential induced in a fluid flowing through the measurement conduit to obtain a flow rate of the fluid in the measurement conduit based on the induced electric potential. The electromagnetic flowmeter has the advantages of no need of a lining, convenience in installation, lighter weight, high strength, good corrosion resistance, electrical insulation performance and heat insulation performance. In the prior art including the above patent, various technical bottlenecks still exist: Firstly, the runner entry opening size of current electromagnetic flowmeter is fixed, can't adapt to the plastic pipeline of different diameters, and rivers easily form irregular vortex after getting into the flowmeter from circular pipeline, lead to velocity of flow maldistribution, lack simultaneously and to the initiative regulation structure of rivers pressure and flow, be difficult to satisfy the fluid parameter adaptation demand under the different operating modes. Secondly, the traditional electromagnetic flowmeter adopts a single flow guiding structure (such as simple straight plate flow guiding) in the interior, can not effectively cut the rotary vortex in the circular pipeline, has poor flow field stability, and has a plurality of output ports in a straight cylinder design, and the backflow is easily generated due to abrupt change of the section when fluid flows out, so that the stable flow field in the flow channel is reversely disturbed, the sensor detection data deviation is larger, and the measurement accuracy is difficult to improve. Thirdly, at present, the electromagnetic flowmeter reduces the dead weight to adapt to the plastic pipeline by adopting light materials, but lacks the weight sharing design based on a mechanical structure, the dead weight of equipment still can directly act on a plastic pipeline interface, the plastic pipeline is easy to deform and the interface is loose after long-term use, even medium leakage is caused, and particularly under the working condition of large flow, the bearing pressure of the pipeline is larger, and the potential safety hazard is outstanding. Disclosure of Invention The invention aims to provide a novel electromagnetic flowmeter, which aims at the technical bottlenecks of poor pipeline suitability, unstable flow field and large plastic pipeline bearing pressure in the prior art, adapts plastic pipelines with different diameters through an adjustable rectangular opening of an adjusting cover and a sealing assembly, breaks up initial vortex and adjusts water flow parameters, cuts rotary water flow into uniform parallel flow states by means of a double-symmetrical flow guiding assembly, converts water flow thrust into upward pulling force by means of a linkage pulling assembly so as to share equipment dead weight, and optimizes flow field stability by matching a square body and a bell mouth output end, so that the effects of accurate multi-working condition adaptation, stable flow field without interference and high measurement precision are finally realized, deformation leakage of the plastic pipelines can be avoided without relying on single light materials, and the high-precision flow detection requirement under a plastic pipeline scene is met. In order to achieve the aim of the invention, the invention adopts the following technical scheme: The novel electromagnetic flowmeter comprises a flowmeter body and a plastic pipeline, wherein the flowmeter body is square in appearance, an adjusting cover is arranged at the input end of the flowmeter body, a sealing assembly is arranged in an inner cavity of the adjusting cover and is communicated with the plastic pipeline, two symmetrically-arranged flow guide assemblies are arranged in the inner cavity of the flowmeter body, and a linkage tension assembly is arranged at the output end of the flowmeter body. According to some embodiments of the invention, the input end and the output end of the adjusting cover are provided with threaded connecting sleeves, and the other ends of the threaded connecting sleeves are communicated with a plastic pipeline. According to some embodiments of the invention, the sealing assembly comprises a plurality of limit sliding rails, the limit sliding rails are connected to the side wall of the inner cavity of the adjusting cover, the limit sliding rails are connected with sliding guide blocks in a sliding manner, the other ends of the sliding guide blocks are connected with adjusting baffles, the adjusting baffles ar