CN218994432U

CN218994432U - Electromagnetic flowmeter

Info

Publication number: CN218994432U
Application number: CN202223522472.2U
Authority: CN
Inventors: 俞平权
Original assignee: Boca Measurement And Control Technology Shanghai Co ltd
Current assignee: Boca Measurement And Control Technology Shanghai Co ltd
Priority date: 2022-12-29
Filing date: 2022-12-29
Publication date: 2023-05-09
Anticipated expiration: 2032-12-29

Abstract

The utility model relates to the technical field of flowmeters, in particular to an electromagnetic flowmeter. The technical scheme includes that the digital display meter head, the electromagnetic flowmeter body and the filter are included, the digital display meter head is installed to electromagnetic flowmeter body upper surface intermediate position department, the filter screen is installed to electromagnetic flowmeter body inside one side, the impeller is installed through the pivot to the inside position department that is close to the filter screen outside of electromagnetic flowmeter body, the welding of pivot surface is close to the inboard position department of filter screen has the arc scraper blade, the blowoff valve is installed to electromagnetic flowmeter body lower surface below arc scraper blade position department. According to the utility model, the particle impurities contained in the fluid to be measured can be filtered out through the filter screen, so that the structure of the particle impurities on the inner wall of the electromagnetic flowmeter is avoided, the measurement accuracy of the fluid flow is ensured, and the cleanliness of the surface of the filter screen can be ensured.

Description

Electromagnetic flowmeter

Technical Field

The utility model relates to the technical field of flowmeters, in particular to an electromagnetic flowmeter.

Background

An electromagnetic flowmeter is a novel flow measuring instrument which is rapidly developed along with the development of electronic technology in the 50 th to 60 th ages, and is an instrument for measuring the flow of conductive fluid according to the electromotive force induced when the conductive fluid passes through an externally applied magnetic field by applying the electromagnetic induction principle.

In the long-term use process of the existing electromagnetic flowmeter, impurities contained in fluid adhere to the inner wall of the electromagnetic flowmeter to form scale, the scale is difficult to remove, and the measurement accuracy of the fluid flow is affected.

Disclosure of Invention

The utility model aims to provide an electromagnetic flowmeter, which has the advantages that particle impurities contained in fluid to be measured can be filtered out through a filter screen, so that the structure of the particle impurities on the inner wall of the electromagnetic flowmeter is avoided, the measurement accuracy of fluid flow is guaranteed, the cleanliness of the surface of the filter screen can be guaranteed, and the problems that the impurities contained in the fluid are adhered to the inner wall of the electromagnetic flowmeter to form scale, are difficult to remove and can influence the measurement accuracy of the fluid flow in the long-term use process of the traditional electromagnetic flowmeter are solved.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the electromagnetic flowmeter comprises an digital display meter head, an electromagnetic flowmeter body and a filter, wherein the digital display meter head is installed at the middle position of the upper surface of the electromagnetic flowmeter body, a filter screen is installed on one side of the inner portion of the electromagnetic flowmeter body, an impeller is installed at the position, close to the outer side of the filter screen, of the inner portion of the electromagnetic flowmeter body through a rotating shaft, an arc scraping plate is welded at the position, close to the inner side of the filter screen, of the outer surface of the rotating shaft, and a blow-down valve is installed at the position, located below the arc scraping plate, of the lower surface of the electromagnetic flowmeter body.

Preferably, the connecting flanges are symmetrically welded at the two sides of the electromagnetic flowmeter body, and the electromagnetic flowmeter body is connected into the fluid pipeline through the two connecting flanges.

Preferably, the blade is welded at the position of the outer surface of the rotating shaft, which is close to the outer side of the impeller, and the rotating blade can crush impurities with larger particles to prevent the surface of the impeller from being damaged.

Preferably, the arc scraping plates are provided with four in total, and the four arc scraping plates are welded at the position, close to the inner side of the filter screen, of the outer surface of the rotating shaft at equal intervals, and the rotating arc scraping plates scrape off particle impurities on the surface of the filter screen, so that the cleanliness of the surface of the filter screen is guaranteed.

Preferably, quick connectors are symmetrically arranged at the two sides of the filter.

Preferably, the one-way valve is arranged at the position, close to the inner side of the filter screen, of the lower surface of the electromagnetic flowmeter body, connecting pipes are connected to the tail ends of the one-way valve and the blow-down valve, and the two connecting pipes are connected with the filter through two quick connectors.

Compared with the prior art, the utility model has the following beneficial effects:

1. according to the utility model, through the arrangement of the filter screen, the arc scraping plate and the impeller, the effect that the particle impurities contained in the fluid to be measured can be filtered through the filter screen, so that the structure of the particle impurities on the inner wall of the electromagnetic flowmeter is avoided, the measurement accuracy of the fluid flow is ensured, the cleanliness of the surface of the filter screen can be ensured, when the electromagnetic flowmeter is used, the electromagnetic flowmeter body is connected into the fluid pipeline through the two connecting flanges, the particle impurities are filtered through the filter screen after the fluid enters the electromagnetic flowmeter body, the particle impurities are prevented from forming scale on the inner wall of the electromagnetic flowmeter body, meanwhile, the impeller is driven to rotate in the fluid flowing process, and the impeller drives the arc scraping plate to rotate through the rotating shaft, so that the particle impurities filtered on the surface of the filter screen are scraped, and the cleanliness of the surface of the filter screen is ensured.

2. According to the utility model, the pollution discharge valve, the one-way valve, the connecting pipe and the filter are arranged, so that the effect of conveniently discharging the particle impurities collected in the electromagnetic flowmeter body without affecting the normal flow and flow measurement of the fluid is achieved, the collected particle impurities flow into the filter along with the fluid through the pollution discharge valve after the pollution discharge valve is opened, the particle impurities in the fluid are filtered out by the filter, the purified fluid flows into the electromagnetic flowmeter body through the one-way valve, the pollution discharge valve is closed after the particle impurities in the electromagnetic flowmeter body are discharged, the quick connectors at the two sides of the filter are separated from the two connecting pipes respectively, and the filter is cleaned after the filter is disassembled.

Drawings

FIG. 1 is a schematic diagram of the main sectional structure of the present utility model;

FIG. 2 is a schematic view of a partial main sectional structure of a rotary shaft according to the present utility model;

FIG. 3 is a schematic side view of the arc-shaped scraper of the present utility model.

Reference numerals: 1. a connecting flange; 2. a rotating shaft; 3. a filter screen; 4. a digital display meter head; 5. an electromagnetic flowmeter body; 6. a one-way valve; 7. a quick connector; 8. a filter; 9. a connecting pipe; 10. a blow-down valve; 11. a blade; 12. an impeller; 13. an arc scraper.

Detailed Description

The technical scheme of the utility model is further described below with reference to the attached drawings and specific embodiments.

Example 1

As shown in fig. 1 to 3, the electromagnetic flowmeter provided by the utility model comprises a digital display meter head 4, an electromagnetic flowmeter body 5 and a filter 8, wherein the digital display meter head 4 is arranged at the middle position of the upper surface of the electromagnetic flowmeter body 5, a filter screen 3 is arranged at one side of the inner part of the electromagnetic flowmeter body 5, an impeller 12 is arranged at the position, close to the outer side of the filter screen 3, of the inner part of the electromagnetic flowmeter body 5 through a rotating shaft 2, arc-shaped scraping plates 13 are welded at the position, close to the inner side of the filter screen 3, of the outer surface of the rotating shaft 2, four arc-shaped scraping plates 13 are welded at the position, close to the inner side of the filter screen 3, of the outer surface of the rotating shaft 2 in an annular array, blades 11 are welded at the position, close to the outer side of the impeller 12, of the rotating blades 11 can crush impurities with larger particles, so that the surface damage of the impeller 12 is prevented, a drain valve 10 is arranged at the position, close to the lower surface of the electromagnetic flowmeter body 5, and connecting flanges 1 are symmetrically welded at the positions of the two sides of the electromagnetic flowmeter body 5.

When the electromagnetic flowmeter is used, the electromagnetic flowmeter body 5 is connected into the fluid pipeline through the two connecting flanges 1, the fluid enters the electromagnetic flowmeter body 5 and then passes through the filter screen 3 to filter out particle impurities, so that the particle impurities are prevented from forming scale on the inner wall of the electromagnetic flowmeter body 5, meanwhile, the impeller 12 is driven to rotate in the fluid flowing process, the impeller 12 drives the arc scraping plate 13 to rotate through the rotating shaft 2, the particle impurities filtered on the surface of the filter screen 3 are scraped, and the cleanliness of the surface of the filter screen 3 is ensured.

Example two

As shown in fig. 1, compared with the first embodiment, the electromagnetic flowmeter according to the present utility model further includes quick connectors 7 symmetrically installed at two sides of a filter 8, the filter 8 is a detachable filter 8, a check valve 6 is installed at a position of the lower surface of the electromagnetic flowmeter body 5 near the inner side of the filter screen 3, connecting pipes 9 are connected to ends of the check valve 6 and a drain valve 10, and the two connecting pipes 9 are connected to the filter 8 through the two quick connectors 7.

In this embodiment, after the blow-down valve 10 is opened, the collected particulate impurities flow into the filter 8 along with the fluid flowing through the blow-down valve 10, the filter 8 filters the particulate impurities in the fluid, the purified fluid flows into the electromagnetic flowmeter body 5 through the one-way valve 6, after the particulate impurities in the electromagnetic flowmeter body 5 are discharged, the blow-down valve 10 is closed, the quick connectors 7 at two sides of the filter 8 are separated from the two connecting pipes 9 respectively, and the filter 8 is cleaned after being disassembled.

The above-described embodiments are merely a few preferred embodiments of the present utility model, and many alternative modifications and combinations of the above-described embodiments will be apparent to those skilled in the art based on the technical solutions of the present utility model and the related teachings of the above-described embodiments.

Claims

1. An electromagnetic flowmeter, includes digital display gauge outfit (4), electromagnetic flowmeter body (5) and filter (8), its characterized in that: the utility model discloses an electromagnetic flowmeter, including electromagnetic flowmeter body (5), filter screen (3) are installed to electromagnetic flowmeter body (5) upper surface intermediate position department, filter screen (3) are installed to electromagnetic flowmeter body (5) inside one side, impeller (12) are installed through pivot (2) in electromagnetic flowmeter body (5) inside be close to filter screen (3) outside position department, pivot (2) surface is close to filter screen (3) inboard position department welding has arc scraper blade (13), electromagnetic flowmeter body (5) lower surface is located arc scraper blade (13) below position department and installs blowoff valve (10).

2. An electromagnetic flowmeter according to claim 1, wherein: connecting flanges (1) are symmetrically welded at the two sides of the electromagnetic flowmeter body (5).

3. An electromagnetic flowmeter according to claim 1, wherein: a blade (11) is welded on the outer surface of the rotating shaft (2) at a position close to the outer side of the impeller (12).

4. An electromagnetic flowmeter according to claim 1, wherein: the number of the arc-shaped scrapers (13) is four, and the four arc-shaped scrapers (13) are welded at the inner side position of the outer surface of the rotating shaft (2) close to the filter screen (3) in an annular array at equal intervals.

5. An electromagnetic flowmeter according to claim 1, wherein: quick connectors (7) are symmetrically arranged at the two sides of the filter (8).

6. An electromagnetic flowmeter according to claim 1, wherein: the electromagnetic flowmeter is characterized in that a one-way valve (6) is arranged on the lower surface of the electromagnetic flowmeter body (5) near the inner side of the filter screen (3), and connecting pipes (9) are connected to the tail ends of the one-way valve (6) and the sewage discharging valve (10).