CN216770695U - Orifice differential pressure flowmeter - Google Patents

Abstract

The utility model relates to the technical field of orifice plate flowmeters, in particular to an orifice plate differential pressure flowmeter. The sealing cover is connected between the connecting pipe and the pressure guiding pipe through the expansion piece, the mechanical connecting head is arranged at the first end of the connecting pipe, so that the installation step between the orifice plate flowmeter and the measured pipeline can be greatly simplified, meanwhile, the elastic material is arranged in the sealing cover, the sealing performance between the orifice plate flowmeter and the measured pipeline can be further improved, and the problems of pipeline leakage and inaccurate measurement are prevented.

Description

Orifice differential pressure flowmeter

Technical Field

The utility model relates to the technical field of orifice plate flowmeters, in particular to an orifice plate differential pressure 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 engineering, metallurgy, electric power, heat supply, water supply and the like. The throttling device is also called differential pressure type 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. The device has the advantages of simple structure, convenient maintenance and stable performance.

When the existing orifice plate flowmeter is used, the orifice plate flowmeter and a measured pipeline need to be installed and connected in real time, multiple groups of bolts are fixedly connected in the actual assembling process, multiple groups of bolts on opposite sides need to be rotated in sequence, the whole installation process is complex, and the working efficiency of the measured pipeline during measurement is greatly reduced.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is to provide an orifice plate differential pressure flowmeter aiming at the technical defects, wherein a sealing cover is connected between a connecting pipe and a pressure guide pipe through a telescopic device, and a mechanical coupling head convenient to assemble is arranged at the first end of the connecting pipe, so that the installation step between the orifice plate flowmeter and a pipeline to be measured can be greatly simplified, meanwhile, an elastic material is arranged in the sealing cover, the sealing property between the orifice plate flowmeter and the pipeline to be measured can be further improved, and the problems of pipeline liquid leakage and inaccurate measurement are prevented.

In order to solve the technical problems, the technical scheme adopted by the utility model is as follows: an orifice differential pressure flowmeter, characterized by: including the connecting pipe, the both sides of connecting pipe all are equipped with the linking pipeline, the first end that links up the pipeline is equipped with mechanical coupling head, just it has sealed lid to cup jointed on the linking pipeline, sealed lid with be equipped with between the connecting pipe and be no less than a telescopic ware, just the inside of sealed lid is equipped with elastic material.

Further optimize this technical scheme, the link up the pipeline with the pressure pipe is integrated into one piece structure.

Further optimizing the technical scheme, the mechanical coupling head is an external thread.

Further optimize this technical scheme, sealed lid slip cup joint in link up the pipeline.

Further optimize this technical scheme, the expansion bend is extension spring, extension spring is equipped with 4.

Further optimize this technical scheme, the inside of sealed lid is equipped with the rubber pad.

Compared with the prior art, the utility model has the following advantages: the mechanical coupling heads which are convenient to assemble and connect are arranged on the connecting pipelines on the two sides of the pressure guide pipe, so that the installation steps can be greatly simplified when the pressure guide pipe and the detected pipeline are installed, and the detection efficiency is greatly improved; simultaneously the activity has cup jointed sealed lid on linking up the pipeline, links to each other through the expansion bend between sealed lid and the pressure pipe to make sealed lid can be according to actual conditions automatically regulated expansion bend's length, in order to reach the accurate sealed effect of junction, it is further, in order to improve the sealed effect of sealed lid, its inside still is equipped with elastic material, the leakage and the inaccurate problem of measurement appear avoiding that can the at utmost.

Drawings

FIG. 1 is a schematic diagram of the overall structure of an orifice differential flow meter;

fig. 2 is a schematic side view of an orifice differential flow meter.

In the figure: 1. a pressure guide pipe; 2. connecting the pipelines; 3. a mechanical coupling head; 4. a sealing cover; 5. a retractor; 6. an elastomeric material.

Detailed Description

The technical solution in the embodiments of the present invention is clearly and completely described below with reference to the drawings in the embodiments of the present invention. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described and will be readily apparent to those of ordinary skill in the art without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.

The utility model provides a pore plate pressure difference flowmeter, as shown in fig. 1 and fig. 2, comprising a throttling device, a pressure pipe 1 and a differential pressure transmitter, wherein, connecting pipes 2 are arranged at two sides of the pressure pipe 1, a mechanical coupling head 3 which is convenient to assemble is arranged at the first end of the connecting pipe 2, the preferred embodiment of the utility model is an external thread structure, the pipe to be measured is connected with the connecting pipe 2 in a threaded manner, the traditional complicated installation steps can be greatly simplified, a sealing cover 4 is movably sleeved on the connecting pipe 2, the sealing cover 4 can slide on the connecting pipe 2, at least one expansion piece 5 is arranged between the sealing cover 4 and the pressure pipe 1, the preferred embodiment adopts 4 expansion springs which are arranged in the circumferential direction, an elastic material 6 is arranged in the sealing cover 4, the sealing cover 4 can be inserted into the connecting position of the connecting pipe 2 and the pipe to be measured in the installation process, the sealing of the connection can be improved by the elastic material 6.

The working principle of the utility model is as follows: linking up pipeline 2 with orifice plate flowmeter one end links to each other with the pipeline under test to through the screw thread mode with both installation combinations together, can be according to linking up pipeline 2 and the mounting structure of the pipeline under test this moment, make extension spring adjust sealed lid 5 by oneself for linking up the position on the pipeline 2, and sealed lid 5 can wrap up linking up pipeline 2 and the junction of the pipeline under test, and can prevent the problem of junction weeping through the inside elastic material 6 of sealed lid 5, elastic material 6 can select materials such as rubber pad.

It is to be understood that the described embodiments are merely a few embodiments of the utility model, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Claims (6)

1. An orifice differential pressure flowmeter, characterized by: including connecting pipe (1), the both sides of connecting pipe (1) all are equipped with linking up pipeline (2), the first end that links up pipeline (2) is equipped with mechanical coupling head (3), just sealed lid (4) have been cup jointed on linking up pipeline (2), sealed lid (4) with be equipped with between connecting pipe (1) and be no less than one expansion bend (5), just the inside of sealed lid is equipped with elastic material (6).

2. An orifice plate differential pressure flowmeter as set forth in claim 1 wherein: the connecting pipeline (2) and the pressure guide pipe (1) are of an integrally formed structure.

3. An orifice plate differential pressure flowmeter as set forth in claim 1 wherein: the mechanical coupling head (3) is an external thread.

4. An orifice plate differential pressure flowmeter as set forth in claim 1 wherein: the sealing cover (4) is sleeved on the connecting pipeline (2) in a sliding mode.

5. An orifice plate differential pressure flowmeter as set forth in claim 1 wherein: the expansion pieces (5) are extension springs, and the number of the extension springs is 4.

6. An orifice plate differential pressure flowmeter as set forth in claim 1 wherein: the sealing cover (4) is internally provided with a rubber pad.

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