CN211651703U

CN211651703U - High-precision flowmeter

Info

Publication number: CN211651703U
Application number: CN201922460379.5U
Authority: CN
Inventors: 关宇洋; 李莹娟; 关明洋
Original assignee: Shanghai Meixu Measurement And Control Technology Co ltd
Current assignee: Shanghai Meixu Measurement And Control Technology Co ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-10-09
Anticipated expiration: 2029-12-31

Abstract

The utility model discloses a high-precision flowmeter in the technical field of flowmeters, which comprises a shell, wherein a connecting frame is arranged on the outer side wall of the shell, a magnetic induction component is arranged in the shell, the cleaning component is arranged in an inner pipe, an impeller rotates to cut a magnetic induction line, so that the electromagnetic resistance value is changed, the magnetic flux in a detection coil is changed accordingly, an electric pulse signal is generated, the electric pulse signal is transmitted to a microcontroller through an electromagnetic sensor, the microcontroller controls a display to display a numerical value, when the device is used, the detected industrial water can be filtered through a filter plate formed by combining a porous ceramic filter plate and a nylon filter screen, impurities in the fluid are preliminarily removed, the influence of the impurities on the measurement precision of the flowmeter is reduced, meanwhile, the impeller drives a connecting support on a rotating shaft to rotate when rotating, the inside of a scraper blade coated by the outer side wall of the connecting support, the condition that the measured data deviation is influenced by impurities is reduced, and the accuracy of the flowmeter is ensured.

Description

High-precision flowmeter

Technical Field

The utility model relates to a flowmeter technical field specifically is a high accuracy flowmeter.

Background

The metering is the eye of industrial production, the flow metering is one of the components of the metering science and technology, and has close relation with national economy, national defense construction and scientific research, the work is done, the flow metering has important functions on ensuring the product quality, improving the production efficiency and promoting the development of the scientific technology, and particularly, the position and the function of the flow meter in the national economy are more obvious in the current times that the energy crisis and the automation degree of the industrial production is higher and higher.

Traditional flowmeter measurement accuracy is lower, because contain the incrustation scale in the measurement fluid in actual industrial production measurement process, consequently influences measuring degree of accuracy, and simultaneously, current flowmeter detects industrial sewage, because sewage is dirty, and the suspended solid is higher in the sewage, and the filth of aquatic is attached to the pipeline inner wall easily, can make flowmeter measurement accuracy descend, and the suitability is not strong, consequently, needs a high accuracy flowmeter urgently.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a high accuracy flowmeter to solve traditional flowmeter that proposes in the above-mentioned background art because contain the incrustation scale in the actual industrial production measurement process, consequently influence the measuring degree of accuracy, simultaneously, current flowmeter examines time measuring to industrial sewage, because sewage is dirty, and the suspended solid is higher in the sewage, and the filth of aquatic is attached to the pipeline inner wall easily, can make flowmeter measurement accuracy descend, the not strong problem of suitability.

In order to achieve the above object, the utility model provides a following technical scheme: a high-precision flowmeter comprises a shell, a connecting frame, a magnetic induction component and a cleaning component, wherein an inlet pipe is integrally formed on the left side of the shell, an outlet pipe is integrally formed on the right side of the shell, an inner pipe is arranged on the side wall of an inner cavity of the shell, the connecting frame is installed on the outer side wall of the shell, a detection coil is sleeved between the connecting frame and the inner pipe, the magnetic induction component is arranged in the shell and consists of a rotating shaft, an impeller, an electromagnetic sensor and a display screen, the rotating shaft is movably connected to the central position of the inner side wall of the inner pipe, the impeller is sleeved at the central position of the outer side wall of the rotating shaft, the electromagnetic sensor is installed on the front side of the top of the outer side wall of the connecting frame, the rear side of the top of the outer side wall of the connecting frame is fixedly connected with the display screen, the cleaning assembly is arranged in the inner pipe.

Preferably, the end parts of the inlet pipe and the outlet pipe are both provided with connecting pieces, each connecting piece consists of a flange and a sealing ring, and the sealing rings are arranged in a U-shaped structure.

Preferably, a filter plate is clamped at the central position of the inner side wall of the inlet pipe, and the filter plate is formed by combining a porous ceramic filter plate and a nylon filter screen.

Preferably, the cleaning assembly comprises a connecting support and a scraper, the left side and the right side of the outer side wall of the rotating shaft are fixedly connected with the connecting support, the connecting support is arranged symmetrically along the axis of the rotating shaft, and the outer side wall of the connecting support corresponds to the inner side wall of the inner tube and is coated with the scraper.

Compared with the prior art, the utility model has the advantages that when the fluid to be detected flows through the inner pipe, the impeller is stressed and rotated under the action of the fluid, the rotating speed of the impeller is in direct proportion to the average flow velocity of the pipeline, the impeller rotates to cut the magnetic induction line, thereby changing the electromagnetic resistance value, further leading the magnetic flux in the detection coil to change, generating induction potential, namely an electric pulse signal, then transmitting the electric pulse signal to the microcontroller through the electromagnetic sensor, the microcontroller controls the display to display the numerical value, and when the device is used, the impurities in the fluid can be preliminarily removed by filtering the detected industrial water through the filter plate formed by combining the porous ceramic filter plate and the nylon filter screen, reducing the influence of the impurities on the measurement precision of the flowmeter, meanwhile, the impeller drives the connecting bracket to rotate on the rotating shaft when rotating, the inside of the scraper blade coated by the outer side wall of the connecting bracket is internally removed, the condition that the measured data deviation is influenced by impurities is reduced, and the accuracy of the flowmeter is further ensured.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic view of the structure of part a of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model provides a following technical scheme: the utility model provides a high accuracy flowmeter, filter the industrial water who detects through the filter plate that forms by porous ceramic filter plate and nylon filter screen combination and tentatively clear away impurity in the fluid, reduce the influence of impurity to flowmeter measurement accuracy, and simultaneously, the impeller drives linking bridge rotation in the pivot when rotating, the doctor-bar through linking bridge lateral wall cladding clears up the inside of inner tube, reduce the condition that receives impurity influence measured data deviation, and then guaranteed the accuracy of flowmeter, please refer to fig. 1, include, casing 100, link 200, magnetism sensing subassembly 300 and clearance subassembly 400.

Referring to fig. 1 and 2, the shell 100 has an inlet pipe 110, an outlet pipe 120 and an inner pipe 130, specifically, the inlet pipe 110 is integrally formed on the left side wall of the shell 100, the inlet pipe 110 is used as the inlet of the fluid to be measured, the outlet pipe 120 is integrally formed on the right side wall of the shell 100, the outlet pipe 120 is used as the outlet of the fluid to be measured, the inner pipe 130 is sleeved on the inner side wall of the shell 100, the inner pipe 130 is used for connecting the detection coil 210, the magnetic sensing assembly 300 and the cleaning assembly 400, the ends of the inlet pipe 110 and the outlet pipe 120 are provided with a connecting member, the connecting member is composed of a, the sealing ring is arranged in a U-shaped structure, a filter plate 111 is clamped at the center of the inner side wall of the inlet pipe 110, the filter plate 111 is formed by combining a porous ceramic filter plate and a nylon filter screen, and the filter plate 111 is used for filtering detected industrial water to primarily remove impurities in fluid, so that the influence of the impurities on the measurement precision of the flowmeter is reduced;

referring to fig. 1 and fig. 2, the connecting frame 200 is sleeved at the center of the outer sidewall of the casing 100, the connecting frame 200 is used for disposing the magnetic sensing element 300, and the detecting coil 210 is sleeved between the connecting frame 200 and the inner tube 130;

referring to fig. 1 and 2, the magnetic sensing assembly 300 is disposed in the casing 100, the magnetic sensing assembly 300 includes a rotating shaft 310, an impeller 320, an electromagnetic sensor 330 and a display screen 340, specifically, the rotating shaft 310 is movably connected to a central position of an inner side wall of the casing 130, the impeller 320 is sleeved at a central position of an outer side wall of the rotating shaft 310, the electromagnetic sensor 330 is screwed to a front side of a top portion of an outer side wall of the connecting frame 200, the display screen 340 is clamped to a rear side of the top portion of the outer side wall of the connecting frame 200, a microcontroller (not shown) is disposed in the display screen 340, the electromagnetic sensor 330 and the display screen 340 are electrically connected to the microcontroller, when a fluid to be measured flows through the impeller 320, the impeller 320 is forced to rotate under the action of the fluid, the rotating speed of the impeller 320 is proportional to the average flow velocity of the pipeline, the impeller 320 rotates to cut magnetic, that is, the electric pulse signal is transmitted to the microcontroller through the electromagnetic sensor 330, and the microcontroller controls the display 500 to display a numerical value;

referring to fig. 1 and 2, the cleaning assembly 400 is composed of a connecting bracket 410 and a scraper 420, the connecting bracket 410 is clamped on both sides of the outer side wall of the rotating shaft 310, the two connecting brackets 410 are symmetrically arranged along the central axis of the rotating shaft 310, the positions of the outer side walls of the two connecting brackets 410 corresponding to the inner side walls of the inner tube 130 are respectively coated with the scraper 420, and the scraper 420 is used for cooperating with the connecting brackets 410 to clean the inner tube 130 along with the rotation of the rotating shaft 310, so as to reduce the influence rate of impurities in the inner tube 130 on the measurement result, and further ensure the accuracy of the.

The working principle is as follows: when the utility model is used, when the fluid to be measured flows through the inner tube 130, under the action of the fluid, the impeller 320 is stressed and rotated, the rotating speed of the impeller 320 is in direct proportion to the average flow velocity of the pipeline, the impeller 320 rotates to cut the magnetic induction line, thereby changing the electromagnetic resistance value, further leading the magnetic flux in the detection coil 210 to change, generating induction potential, namely an electric pulse signal, then transmitting the electric pulse signal to the microcontroller through the electromagnetic sensor 330, the microcontroller controls the display 500 to display the numerical value, and when the device is used, the industrial water to be detected can be filtered through the filter plate 111 formed by combining the porous ceramic filter plate and the nylon filter screen, preliminarily removing impurities in the fluid, reducing the influence of the impurities on the measurement precision of the flowmeter, meanwhile, the impeller 320 drives the connecting bracket 410 on the rotating shaft 310 to rotate when rotating, the inner tube 130 is cleaned through the scraper blade 420 coated on the outer side wall of the connecting bracket, the condition that the measured data deviation is influenced by impurities is reduced, and the accuracy of the flowmeter is further ensured.

While the invention has been described above with reference to an embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, as long as there is no structural conflict, the various features of the disclosed embodiments of the present invention can be used in any combination with each other, and the description of such combinations is not exhaustive in the present specification only for the sake of brevity and resource conservation. Therefore, it is intended that the invention not be limited to the particular embodiments disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.

Claims

1. A high accuracy flowmeter characterized by: including, casing (100), link (200), magnetism sense subassembly (300) and clearance subassembly (400), casing (100) left side integrated into one piece has import pipe (110), casing (100) right side integrated into one piece has outlet pipe (120), casing (100) inner chamber lateral wall is equipped with inner tube (130), casing (100) lateral wall installation link (200), link (200) with the cover is equipped with detection coil (210) between inner tube (130), magnetism sense subassembly (300) are located in casing (100), magnetism sense subassembly (300) comprise pivot (310), impeller (320), electromagnetic sensor (330) and display screen (340), pivot (310) swing joint in inner tube (130) inside wall central point, pivot (310) outside wall central point overlaps and establishes impeller (320), electromagnetic sensor (330) install in link (200) top lateral wall front side, link (200) lateral wall top rear side rigid coupling display screen (340), display screen (340) embeds there is microcontroller, electromagnetic sensor (330) with display screen (340) all with microcontroller electric connection, set up in inner tube (130) clearance subassembly (400).

2. A high accuracy flowmeter according to claim 1, wherein: the inlet pipe (110) and the outlet pipe (120) are provided with connecting pieces at the ends, the connecting pieces are composed of flanges and sealing rings, and the sealing rings are arranged in a U-shaped structure.

3. A high accuracy flowmeter according to claim 2, wherein: the filter plate (111) is clamped at the central position of the inner side wall of the inlet pipe (110), and the filter plate (111) is formed by combining a porous ceramic filter plate and a nylon filter screen.

4. A high accuracy flowmeter according to claim 1, wherein: clearance subassembly (400) comprise linking bridge (410) and doctor-bar (420), the equal rigid coupling in pivot (310) lateral wall left and right sides linking bridge (410), two linking bridge (410) are followed pivot (310) axis symmetry sets up, and two linking bridge (410) lateral wall corresponds inner tube (130) inside wall position all coats doctor-bar (420).