CN217058906U

CN217058906U - Adjustable flow detection mechanism of float flowmeter

Info

Publication number: CN217058906U
Application number: CN202220553935.2U
Authority: CN
Inventors: 王婷婷; 李建; 姚俊峰; 魏婷婷
Original assignee: DANDONG TOP ELECTRONICS INSTRUMENT (GROUP) CO LTD
Current assignee: DANDONG TOP ELECTRONICS INSTRUMENT (GROUP) CO LTD
Priority date: 2022-03-15
Filing date: 2022-03-15
Publication date: 2022-07-26
Anticipated expiration: 2032-03-15

Abstract

The utility model discloses adjustable flow detection mechanism of float flowmeter, by surveying buret, the orifice plate, the toper float device, go up spacing ring, the locating rack is constituteed under the float, the toper float device, by the toper float body, the magnet steel, the counterweight body, the upper end cover, the lower extreme guide bar is constituteed, a structure is simple, the manufacturing is convenient, the adjustment weight can be changed according to the size of measuring the flow value to the counterweight body of toper float device, increase float weight through increase counterweight body weight, the detectable flow value of promotion flow detection mechanism, realize more large-traffic measurement.

Description

Adjustable flow detection mechanism of float flowmeter

Technical Field

The utility model relates to a float flowmeter, especially float flowmeter's flow detection mechanism.

Background

The float flowmeter consists of a flow detection mechanism and a meter head device.

The flow rate detecting mechanism of float flowmeter in available technology consists of measuring pipe, conic float, orifice plate, upper float locating rack and lower float locating rack.

When the medium flows upwards from the measuring pipe and passes through the conical floater and the orifice plate to form an annular flow area, the pressure difference generated at the upper end and the lower end of the floater forms the rising force of the floater, when the rising force is equal to the weight of the floater soaked in fluid, the floater is stabilized at a certain height, and the annular flow area formed by the conical floater and the orifice plate is in a corresponding relation with the passing flow.

The flow detection mechanism of the float flowmeter in the prior art, particularly the structure and the weight of the conical float, are designed according to the flow detection capability, namely the weight of the conical float is not adjustable, and the flow detection mechanism of the float flowmeter in the prior art can only be used for measuring smaller flow or designing flow.

In reality, when the specification of the field process pipeline is fixed, the medium flow passing through the pipeline is sometimes required to be large, or the medium flow is required to be changed and increased greatly, so that the flow detection mechanism of the ordinary float flowmeter in the prior art cannot meet the use requirement, and only the flow detection mechanism of the float flowmeter with large flow can be replaced to meet the use requirement of large flow.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the not enough improvement of above-mentioned prior art, provide an adjustable float flowmeter's that enlarges detectability flow detection mechanism.

The utility model discloses adjustable flow detection mechanism of float flowmeter comprises survey buret, orifice plate, toper float device, last spacing ring, the locating rack under the float.

The upper end of the measuring pipe is fixedly connected with an upper end flange in a welding way, and the lower end of the measuring pipe is fixedly connected with a lower end flange in a welding way; the upper limiting ring is arranged in an inner spigot platform on a flange at the upper end of the measuring pipe and is fixed by a retainer ring; the lower float positioning frame is fixedly connected and installed with the lower port part of the measuring pipe; the pore plate is fixedly arranged in the middle of the measuring tube.

The conical floater device consists of a conical floater body, magnetic steel, a counterweight body, an upper end cover and a lower end guide rod.

The magnetic steel is fixedly arranged in the center of the conical floater body, an inner cavity is formed in the conical floater body, and the counterweight body is arranged in the inner cavity formed in the conical floater body in a matching manner; the upper end cover is fixedly connected with the upper end of the conical float body in a threaded fit way; supporting forks are distributed on the outer circular surface of the upper end cover, the supporting forks arranged on the upper end cover are in small-gap sliding fit with the inner circular surface of the measuring tube, and the supporting forks guide and position the upper part of the conical floater body; the lower end guide rod fixedly connected to the center of the lower end of the conical floater body is in sliding fit with the center hole in the upper end of the lower floater positioning frame, and the lower end of the conical floater body is limited, guided and positioned.

The utility model discloses simple structure, it is convenient to make, and adjustment weight can be changed according to the size of measuring the flow value to the counter weight body of toper float device, increases float weight through increase counter weight body weight, promotes the detectable flow value of flow detection mechanism, can realize more large-traffic measurement under the prerequisite of guaranteeing the precision.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Fig. 2 is a sectional view a-a of fig. 1.

Detailed Description

The utility model discloses adjustable flow detection mechanism of float flowmeter comprises survey buret 1, orifice plate 2, toper float device 3, last spacing ring 4, float lower locating rack 5.

The upper end of the measuring pipe 1 is fixedly welded with an upper end flange 11, and the lower end of the measuring pipe 1 is fixedly welded with a lower end flange 12; the upper limiting ring 4 is arranged in an inner spigot platform of the flange 11 at the upper end of the measuring pipe and is fixed by a clamping ring 110; the lower float positioning frame 5 is fixedly connected and installed with the lower port part of the measuring pipe 1; the orifice plate 2 is fixedly arranged in the middle of the measuring pipe 1.

The conical floater device 3 consists of a conical floater body 31, magnetic steel 32, a counterweight body 33, an upper end cover 34 and a lower end guide rod 35.

The magnetic steel 32 is fixedly arranged at the center in the conical float body 31, an inner cavity 310 is formed in the conical float body 31, and the counterweight body 33 is arranged in the inner cavity 310 formed in the conical float body 31 in a matching manner; the upper end cover 34 is fixedly connected with the upper end of the conical float body 31 in a threaded fit way; supporting forks 341 are distributed on the outer circular surface of the upper end cover 34, the supporting forks 341 arranged on the upper end cover 34 are in sliding fit with the inner circular surface of the measuring tube 1 in a small gap, and the supporting forks 341 guide and position the upper part of the conical float body 31; the lower end guide rod 35 fixedly connected to the center of the lower end of the conical float body 31 is in sliding fit with the center hole at the upper end of the lower float positioning frame 5 to perform limiting, guiding and positioning on the lower end of the conical float body 31.

Claims

1. An adjustable flow detection mechanism of a float flowmeter is characterized by comprising a measuring pipe, an orifice plate, a conical float device, an upper limit ring and a lower float positioning frame;

the upper end of the measuring pipe is fixedly connected with an upper end flange in a welding way, and the lower end of the measuring pipe is fixedly connected with a lower end flange in a welding way; the upper limiting ring is arranged in an inner spigot platform on a flange at the upper end of the measuring pipe and is fixed by a retainer ring; the lower float positioning frame is fixedly connected and installed with the lower port part of the measuring pipe; the pore plate is fixedly arranged in the middle of the measuring tube;

the conical floater device consists of a conical floater body, magnetic steel, a counterweight body, an upper end cover and a lower end guide rod;

the magnetic steel is fixedly arranged in the center of the conical floater body, an inner cavity is formed in the conical floater body, and the counterweight body is arranged in the inner cavity formed in the conical floater body in a matching manner; the upper end cover is fixedly connected with the upper end of the conical float body in a threaded fit way; the outer circular surface of the upper end cover is distributed with supporting forks, the supporting forks arranged on the upper end cover are in small clearance sliding fit with the inner circular surface of the measuring tube, and the supporting forks guide and position the upper part of the conical float body; the lower end guide rod fixedly connected to the center of the lower end of the conical floater body is in sliding fit with the center hole in the upper end of the lower floater positioning frame, and the lower end of the conical floater body is limited, guided and positioned.