CN212988470U

CN212988470U - Corrosion-resistant orifice plate flowmeter

Info

Publication number: CN212988470U
Application number: CN202021560375.0U
Authority: CN
Inventors: 邓亚
Original assignee: Jiangsu Dadi Instrument Co ltd
Current assignee: Jiangsu Dadi Instrument Co ltd
Priority date: 2020-07-31
Filing date: 2020-07-31
Publication date: 2021-04-16
Anticipated expiration: 2030-07-31

Abstract

The invention relates to the technical field of orifice plate flowmeters and discloses a corrosion-resistant orifice plate flowmeter which comprises two groups of side connecting pipes, wherein the side connecting pipes are circular pipes, the two groups of side connecting pipes are arranged in a mirror image mode, external threads are arranged at the outer circles of the ends, far away from each other, of the two groups of side connecting pipes, connecting rings are fixedly arranged at the outer circles of the ends, close to each other, of the two groups of side connecting pipes, extrusion rings are sleeved at the outer circles of the side connecting pipes, the extrusion rings are circular rings, and the extrusion rings can freely slide at the outer circles of the side connecting pipes. According to the invention, the whole device is placed in the middle of a pipeline to be measured, and the connection position is set to be in threaded connection, so that the two groups of side connecting pipes are rotated and can be connected with the measuring pipelines at two ends, the problem that the conventional device needs to be fixed by six to eight groups of bolts is avoided, the installation speed of the whole flowmeter is greatly improved, and the working efficiency is improved.

Description

Corrosion-resistant orifice plate flowmeter

Technical Field

The invention relates to the technical field of orifice plate flowmeters, in particular to a corrosion-resistant orifice plate flowmeter.

Background

The orifice plate flowmeter is a high range ratio differential pressure flow device formed by matching a standard orifice plate with a multi-parameter differential pressure transmitter (or a differential pressure transmitter, a temperature transmitter and a pressure transmitter), can measure the flow of gas, steam, liquid and water, and is widely applied to process control and measurement in the fields of petroleum, chemical industry, metallurgy, electric power, heat supply, water supply and the like. The throttling device is also called as differential pressure flowmeter, and is composed of a primary detection part (throttling part) and a secondary device (differential pressure transmitter and flow indicator) which are widely applied to gas. Flow measurements of vapor and liquid. Has simple structure, convenient maintenance and stable performance.

Existing orifice plate flowmeter on the market is when using at present, and orifice plate flowmeter's both sides all are connected with the measurand pipeline through 6 groups or 8 groups of bolts, and such connected mode need carry out rotatory fixed in proper order to the 8 group bolts of both sides, and the mounting means is comparatively complicated, seriously influences work efficiency. To this end, we propose a corrosion resistant orifice plate flowmeter.

Disclosure of Invention

The invention mainly solves the technical problems in the prior art and provides a corrosion-resistant orifice plate flowmeter.

In order to achieve the purpose, the invention adopts the following technical scheme that the corrosion-resistant orifice plate flowmeter comprises side connecting pipes, wherein the side connecting pipes are circular pipes, two groups of side connecting pipes are arranged, the two groups of side connecting pipes are arranged in a mirror image mode, external threads are arranged at the outer circles of the ends, far away from each other, of the two groups of side connecting pipes, a connecting ring is fixedly arranged at the outer circle of the end, close to each other, of the two groups of side connecting pipes, the connecting ring is a circular ring, a squeezing ring is sleeved at the outer circle of the side connecting pipes, the squeezing ring is a circular ring and can freely slide at the outer circle of the side connecting pipes, rubber rings are fixedly arranged at the ends, far away from each other, of the two groups of squeezing rings, the rubber rings are circular rings made of rubber materials, springs are fixedly arranged at the ends, far away from the external threads, of each group of side connecting, the middle position of the two groups of side connecting pipes is provided with a middle connecting pipe.

Preferably, the middle connecting pipe is a circular pipe, the diameter of the middle connecting pipe is one half and five times of that of the side connecting pipe, and the upper end of the middle connecting pipe is vertically and upwards fixedly provided with the gauge rod.

Preferably, a gauge head is fixedly mounted at one end, far away from the middle connecting pipe, of the gauge rod, and fixing rings are fixedly mounted at one ends, inside the middle connecting pipe, of the two groups of side connecting pipes.

Preferably, the edge that solid fixed ring is the toroidal ring and solid fixed ring is circular-arc, and the extrusion groove has all been seted up to the inside both sides of middle connecting pipe corresponding solid fixed ring's position.

Preferably, the extrusion groove is a circular ring-shaped groove with an arc-shaped corner, a sealing ring is sleeved inside the extrusion groove, and the sealing ring is a circular ring-shaped ring made of rubber.

Advantageous effects

The invention provides a corrosion-resistant orifice plate flowmeter. The method has the following beneficial effects:

(1) the corrosion-resistant orifice plate flowmeter places the whole device in the middle of a pipeline to be measured, sets the connection position as a threaded connection mode, enables the two groups of side connecting pipes to be connected with measuring pipelines at two ends by rotating the two groups of side connecting pipes, avoids the problem that the prior device needs to be fixed by six to eight groups of bolts, greatly improves the installation speed of the whole flowmeter, improves the working efficiency, enables the two groups of pipelines to be measured by arranging external threads to be measured as long as the device can measure the two groups of pipelines within the limit range of the threaded connection, enables the two groups of side connecting pipes to be connected with the pipelines at two ends by the external threads by rotating, enables the two groups of side connecting pipes to extrude an extruding ring and a rubber ring when the pipelines at two ends are in threaded connection with the excircle of the side connecting pipes, and extrudes the rubber ring under the elastic action of a spring, thereby guarantee the port department of rubber circle and both sides pipeline and closely laminate, guarantee the leakproofness of being surveyed pipeline port department, prevent that the not enough precision that influences the measurement of sealed condition from appearing.

(2) The two groups of side connecting pipes are connected through threads on two sides, the two groups of side connecting pipes can move away from each other, the two groups of side connecting pipes can pull and extrude the inner walls on two sides of the middle connecting pipe through the fixed ring when moving, the two groups of side connecting pipes can extrude the sealing rings through the two groups of fixed rings when moving towards two sides, so that the connecting positions of the side connecting pipes and the middle connecting pipe are in a sealing state, the measuring precision is ensured, the two groups of side connecting pipes can freely slide in the middle connecting pipe, the distance between the two groups of side connecting pipes is ensured to be adjusted, when the device is installed, the two groups of side connecting pipes can be firstly contracted into the middle connecting pipe, then the side connecting pipes are pulled towards two sides to rotate, and the two groups of side connecting pipes and, two sets of side connecting pipes are when not taut with the intermediate junction pipe, and the intermediate junction pipe can freely rotate the position of adjustment table pole and gauge outfit between two sets of side connecting pipes for table pole and gauge outfit remain vertical state throughout, and the person of facilitating the use observes.

Drawings

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

FIG. 2 is an internal view of the intermediate connection pipe according to the present invention;

fig. 3 is an enlarged view of the invention at a in fig. 2.

Illustration of the drawings:

1 side connecting pipe, 2 external screw threads, 3 linking rings, 4 extrusion rings, 5 rubber rings, 6 springs, 7 middle connecting pipes, 8 gauge rods, 9 gauge heads, 10 fixing rings, 11 extrusion grooves and 12 sealing rings.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

Example (b): a corrosion-resistant orifice plate flowmeter is shown in figures 1-3 and comprises side connecting pipes 1, wherein the side connecting pipes 1 are circular pipes, the side connecting pipes 1 are provided with two groups, the two groups of side connecting pipes 1 are arranged in a mirror image manner, the outer circles of the ends, far away from each other, of the two groups of side connecting pipes 1 are provided with external threads 2, the outer circles of the ends, close to each other, of the two groups of side connecting pipes 1 are fixedly provided with connecting rings 3, the connecting rings 3 are circular rings, the outer circles of the side connecting pipes 1 are sleeved with extrusion rings 4, the extrusion rings 4 are circular rings and can freely slide at the outer circles of the side connecting pipes 1, the ends, far away from each other, of the two groups of extrusion rings 4 are fixedly provided with rubber rings 5, the rubber rings 5 are circular rings made of rubber materials, the ends, far away from the external threads 2, of the extrusion rings 4 are fixedly, spring 6 keeps away from the one end of extrusion ring 4 and links up 3 fixed connection of ring, the intermediate position of two sets of side connecting pipes 1 is provided with middle connecting pipe 7, middle connecting pipe 7 is the diameter of circular tube and middle connecting pipe 7 and is a little five times of side connecting pipe 1 diameter, the perpendicular upwards fixed mounting in upper end of middle connecting pipe 7 has gauge rod 8, the one end fixed mounting that middle connecting pipe 7 was kept away from to gauge rod 8 has gauge outfit 9, two sets of side connecting pipes 1 are the equal fixed mounting in the inside one end of middle connecting pipe 7 and have solid fixed ring 10, gu fixed ring 10 is circular-arc for the edge of circular ring and solid fixed ring 10, extrusion groove 11 has all been seted up to the inside both sides of middle connecting pipe 7 corresponding solid fixed ring 10's position, extrusion groove 11 is that the edge is circular-arc ring type groove, sealing washer 12 has been cup.

The working principle of the invention is as follows:

when in use, the whole device is placed in the middle of a pipeline to be measured, the connection position is set to be in threaded connection, two groups of side connecting pipes 1 are rotated, two groups of side connecting pipes 1 can be connected with measuring pipelines at two ends, the problem that the existing device needs to be fixed through six to eight groups of bolts is avoided, the installation speed of the whole flowmeter is greatly improved, the working efficiency is improved, the two groups of pipelines to be measured can be measured only within the limit range of threaded connection by arranging the external threads 2, the two groups of side connecting pipes 1 are connected with pipelines at two ends through the external threads 2 by rotation, the pipelines at two ends can extrude the extrusion ring 4 and the rubber ring 5 when being in threaded connection with the excircle of the side connecting pipes 1, the extrusion ring 4 extrudes the rubber ring 5 under the elastic force of the spring 6 by adding the rubber ring 5, thereby guarantee that the port department of rubber circle 5 and both sides pipeline closely laminates, guarantee the leakproofness of being surveyed pipeline port department, prevent that the not enough precision that influences the measurement of sealed condition from appearing.

When two groups of side connecting pipes 1 are connected through threads on two sides, the two groups of side connecting pipes 1 can move away from each other, the two groups of side connecting pipes 1 can pull and extrude the inner walls on two sides of a middle connecting pipe 7 through fixing rings 10 when moving, the two groups of side connecting pipes 1 can extrude sealing rings 12 through two groups of fixing rings 10 when moving towards two sides, the connecting positions of the side connecting pipes 1 and the middle connecting pipe 7 are in a sealing state, the measuring precision is ensured, the two groups of side connecting pipes 1 can freely slide in the middle connecting pipe 7, the distance between the two groups of side connecting pipes 1 is ensured to be adjusted, when in installation, the two groups of side connecting pipes 1 can be firstly contracted to the inside of the middle connecting pipe 7, then the side connecting pipes 1 are pulled towards two sides to rotate, and the two groups of side connecting pipes 1 and the, two sets of side connecting pipe 1 are when not taut with intermediate junction pipe 7, and intermediate junction pipe 7 can freely rotate the position of adjustment table pole 8 and gauge outfit 9 between two sets of side connecting pipe 1 for table pole 8 and gauge outfit 9 remain vertical state throughout, and the person of facilitating the use observes.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A corrosion-resistant orifice plate flowmeter, includes side connecting pipe (1), its characterized in that: side connecting pipe (1) have two sets ofly for circular pipe and side connecting pipe (1), two sets of side connecting pipe (1) are the mirror image setting, the one end excircle department of keeping away from each other of two sets of side connecting pipe (1) all is provided with external screw thread (2), the intermediate position of two sets of side connecting pipe (1) is provided with intermediate junction pipe (7), intermediate junction pipe (7) are the diameter of circular pipe and intermediate junction pipe (7) and are one point five times of side connecting pipe (1) diameter, the upper end of intermediate junction pipe (7) is perpendicular upwards fixed mounting has table pole (8), the one end fixed mounting that intermediate junction pipe (7) were kept away from in table pole (8) has table head (9), two sets of side connecting pipe (1) have solid fixed ring (10) at the equal fixed mounting in the inside one end of.

2. A corrosion-resistant orifice plate flowmeter according to claim 1 wherein: two sets of the one end excircle department fixed mounting that side connecting pipe (1) is close to each other has links up ring (3), extrusion ring (4) have been cup jointed to the excircle department of side connecting pipe (1), and extrusion ring (4) can be in the excircle department free slip of side connecting pipe (1) for annuliform ring and extrusion ring (4), and equal fixed mounting has rubber circle (5) in the one end of keeping away from each other of two sets of extrusion ring (4).

3. A corrosion-resistant orifice plate flowmeter according to claim 2 wherein: rubber circle (5) are the circular circle of rubber material, the one end fixed mounting that external screw thread (2) were kept away from in extrusion ring (4) has spring (6) and is provided with four group spring (6) on every group side connecting pipe (1), and the one end that extrusion ring (4) were kept away from in spring (6) is with linking up ring (3) fixed connection.

4. A corrosion-resistant orifice plate flowmeter according to claim 1 wherein: the edge that solid fixed ring (10) is the annuliform and solid fixed ring (10) is circular-arc, and extrusion groove (11) have all been seted up to the inside both sides of intermediate junction pipe (7) corresponding position of solid fixed ring (10), and extrusion groove (11) are that the edge is circular-arc ring type groove.

5. A corrosion-resistant orifice plate flow meter according to claim 4, wherein: and a sealing ring (12) is sleeved in the extrusion groove (11), and the sealing ring (12) is a circular ring-shaped ring made of rubber.