CN211904263U

CN211904263U - Small-flow solid particle flowmeter

Info

Publication number: CN211904263U
Application number: CN202020968702.XU
Authority: CN
Inventors: 田洪芹
Original assignee: Kymson Luoyang Petrochemical Equipment Co ltd
Current assignee: Kymson Luoyang Petrochemical Equipment Co ltd
Priority date: 2020-06-01
Filing date: 2020-06-01
Publication date: 2020-11-10
Anticipated expiration: 2030-06-01

Abstract

A small-flow solid particle flowmeter comprises a box body, a rotating assembly and a special-shaped funnel, wherein the rotating assembly and the special-shaped funnel are installed in the box body; the rotating assembly comprises a rotating shaft arranged on the box body, a rotating disc fixed on the rotating shaft and at least one metering barrel uniformly distributed along the circumferential edge of the rotating disc; the special-shaped funnel is positioned on one side of the rotating shaft and used for receiving solid particles in the metering bucket. Compared with the prior art, the beneficial effects of the utility model are that: the flow metering and adjusting device realizes the metering and adjusting of the flow of the small-flow solid particles, is suitable for the metering of the flow of the solid particles or powder with various densities, is not limited by environmental conditions such as high temperature and the like, and has the advantages of accurate metering and simple operation.

Description

Small-flow solid particle flowmeter

Technical Field

The utility model belongs to the technical field of the measurement, concretely relates to low discharge solid particle flowmeter is applicable to the measurement of the solid particle of small flow under the harsh conditions such as high temperature.

Background

At present, the metering modes of the solid flow are mainly divided into three types: the first is a belt weigher, which utilizes a group of weighing sensors to dynamically sample the weight of materials conveyed by a belt conveyor at a high speed, simultaneously measures the instantaneous movement speed of the belt by another group of sensors, and processes two groups of signals by a computer to obtain a flow value within a period of time; the second is a nucleon scale, which utilizes a radioactive source arranged on a conveyor to emit gamma rays, the gamma rays are received by a receiving device below the conveyor, and a computer can calculate the solid flow according to the stacking density of materials and the speed measuring system according to the different signal intensities reflected by the receiver after the gamma rays penetrate the materials with different thicknesses; the third is a solid flow meter, patent No.: 200820030857.3 discloses a solid flow metering mechanism, which adopts an arc material flowing groove as a force bearing and transferring device, one end of the arc material flowing groove is fixed on a rotating pivot, the other end is provided with a discharge port and is connected with a weighing sensor through a flexible suspension device, when solid materials pass through the arc material flowing groove, the flexible suspension device is pulled, a material flow signal is transmitted to the weighing sensor through a lever, and a solid flow value can be obtained through computer processing and calculation. The three existing metering modes can only be used for measuring solid flow with large quantity, solid particles with tiny flow are difficult to measure, and because the solid particles are measured by a sensor, the solid particles cannot be measured under severe conditions such as high temperature and the like.

Disclosure of Invention

To prior art's not enough, the utility model provides a small flow solid particle flowmeter can measure the flow of the solid particle (like powder etc.) of small flow to be applicable to harsh conditions such as high temperature.

The purpose of the utility model is realized by adopting the following technical scheme. According to the utility model, the small-flow solid particle flowmeter comprises a box body, a rotating assembly and a special-shaped funnel which are arranged in the box body, wherein an inlet connecting pipe is arranged on the outer side of the top of the box body; the rotating assembly comprises a rotating shaft arranged on the box body, a rotating disc fixed on the rotating shaft and at least one metering barrel uniformly distributed on the edge of the rotating disc along the circumferential direction; the special-shaped funnel is positioned on one side of the rotating shaft and used for receiving solid particles in the metering bucket.

Furthermore, the metering barrels are obliquely installed in a clockwise or anticlockwise direction and have the same inclination angle.

Further, the opening of the metering bucket is wedge-shaped.

Further, the inner side of the bottom of the metering barrel is convex outwards.

Furthermore, the special-shaped funnel inlet adopts a design that two sides are unequal in length, and the long side faces the funnel located at the highest point of the rotary table.

Furthermore, a partition plate positioned between the rotating assembly and the inlet connecting pipe is arranged at the top of the box body, and a gap is reserved between the bottom of the partition plate and the bottom of the box body.

Compared with the prior art, the utility model relates to a small flow solid particle flowmeter's beneficial effect is:

1. the metering and adjustment of the flow of the small-flow solid particles are realized, and the device is suitable for metering the flow of solid particles or powder with various densities;

2. the utility model discloses the device does not receive environmental condition restriction such as high temperature, and the measurement is accurate, easy operation.

The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented according to the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more obvious and understandable, the following preferred embodiments are described in detail with reference to the accompanying drawings.

Drawings

FIG. 1 is a front elevation view of a low flow solids flowmeter construction;

FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;

FIG. 3 is a schematic view of a rotating shaft assembly;

FIG. 4 is a schematic view of a metering bucket;

fig. 5 is a schematic view of a shaped funnel.

[ reference numerals ]

1-case 2-rotating assembly 201-rotating shaft 202-turntable

203-measuring tank 3-special-shaped funnel 4-inlet connecting pipe 5-clapboard

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

Referring to fig. 1 to 5, an embodiment of a small flow solid particle flowmeter of the present invention is shown. In the embodiment, the flowmeter comprises a box body 1, a rotating shaft assembly 2 and a special-shaped funnel 3, wherein the rotating shaft assembly 2 and the special-shaped funnel are arranged in the box body 1, the box body 1 is cuboid, an inlet connecting pipe 4 is arranged on the outer side of the top of the box body, a partition plate 5 is arranged at the top of the box body between the inlet connecting pipe 4 and the rotating assembly 2, and a certain gap is formed between the bottom of the partition plate 5 and the bottom of the box; the rotating assembly 2 comprises a rotating shaft 201, a rotating disc 202 and measuring tanks 203, wherein the rotating shaft 201 is installed on the front and the back of the box body 1, the rotating disc 202 is fixed on the rotating shaft 201, 6 measuring tanks 203 are obliquely installed on the edge of the rotating disc 202 in the anticlockwise direction, and the 6 measuring tanks 203 are uniformly distributed at the same inclination angle; the special-shaped funnel 3 is located on the left side of the rotating shaft and used for receiving solid particles which slide in the metering barrel 203 after passing through the highest point of the rotating disc 202, the side face of the special-shaped funnel 3 is parallel to the opening of the metering barrel 203, the distance between the special-shaped funnel 3 and the metering barrel 203 is the minimum, and the outlet of the opposite-sex funnel 3 is communicated to equipment (omitted in the embodiment) outside the box body 1.

The rotating shaft 201 rotates counterclockwise and the rotating speed is adjustable to ensure that solid particles can be loaded into the metering barrel 203 or the solid particles can be separated from the metering barrel 203.

The opening of the metering barrel 203 is wedge-shaped, so that the metering barrel can be inserted into solid particles more easily, and the resistance on the rotating shaft 201 can be reduced; the inner side of the bottom of the metering barrel is of an outward convex conical structure, and can also be of other structures which can enable solid particles to be separated from the metering barrel 203 more easily to avoid particle aggregation dead zones; the volume size and number of the metering buckets 203 can be adjusted according to the flow rate of the solid particles.

The inlet of the special-shaped funnel 3 is designed to be concave and have two sides with unequal lengths, and the long side is close to the metering bucket 203 at the highest point of the turntable 202.

The height of the partition plate 5 can be adjusted according to the characteristics of solid particles, the height of the solid particles at the bottom of the box body 1 can be controlled, and the solid particles can be fully filled in the metering barrel 203 passing through the lowest point of the rotating disc 202.

The working principle is as follows: solid particles enter the bottom of the box body 1 through the inlet connecting pipe 4, a part of the solid particles slide through a gap between the bottom of the box body 1 and the partition plate 5 by gravity, the height of the partition plate 5 is adjusted to enable the solid particles at the bottom of the box body 1 to reach a proper height, the rotating shaft 201 rotates in the anticlockwise direction, in the rotating process, the solid particles are filled into the metering barrel 203 at the lowest point of the rotating disc 202, then the solid particles rise to the highest point of the rotating disc 202 and then change along with the included angle with the horizontal direction, and the solid particles are separated from the metering barrel 203 under the action of gravity, fall into the special-shaped funnel 3 and slide to an outlet. Because the rotating speed of the rotating shaft 201 and the volume and the number of the metering buckets 203 are fixed, the flow rate of the solid particles at any moment can be calculated, and the flow rate of the solid particles can be adjusted as required.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents. 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.

Claims

1. A small flow solid particle flowmeter characterized by: the special-shaped funnel is arranged in the box body, and an inlet connecting pipe is arranged on the outer side of the top of the box body; the rotating assembly comprises a rotating shaft arranged on the box body, a rotating disc fixed on the rotating shaft and at least one metering barrel uniformly distributed on the edge of the rotating disc along the circumferential direction; the special-shaped funnel is positioned on one side of the rotating shaft and used for receiving solid particles in the metering bucket.

2. A small flow solids flowmeter as set forth in claim 1 wherein: the metering barrels are obliquely installed in a clockwise or anticlockwise direction, and the oblique angles of the metering barrels are the same.

3. A small flow solids flowmeter as claimed in claim 1 or 2 wherein: the opening of the metering barrel is wedge-shaped.

4. A small flow solids flowmeter as set forth in claim 3 wherein: the bottom inside of the metering barrel is convex outwards.

5. A small flow solids flowmeter as set forth in claim 1 wherein: the special-shaped funnel inlet adopts a design with two sides of different lengths, and the long side faces the funnel positioned at the highest point of the rotary table.

6. A small flow solids flowmeter as set forth in claim 1 wherein: the top of the box body is provided with a partition plate positioned between the rotating assembly and the inlet connecting pipe, and a gap is reserved between the bottom of the partition plate and the bottom of the box body.