CN210135954U

CN210135954U - V-shaped cone flowmeter special for coal gas

Info

Publication number: CN210135954U
Application number: CN201921235784.0U
Authority: CN
Inventors: 苏林贤; 陈静
Original assignee: Guangzhou Siqingtai Automation Equipment Co Ltd
Current assignee: Guangzhou Siqingtai Automation Equipment Co Ltd
Priority date: 2019-08-01
Filing date: 2019-08-01
Publication date: 2020-03-10
Anticipated expiration: 2029-08-01

Abstract

The utility model discloses a special V-arrangement awl flowmeter of coal gas, including body, installation pipe, V-arrangement awl festival spare and support ring, the both ends outer fringe of body is fixed with two sets of collars, dig on the collar and be equipped with a plurality of groups mounting hole, the inside installation cavity that is equipped with that digs of body, the bilateral symmetry of installation cavity is dug and is equipped with two sets of chamber grooves, the intracavity is fixed with the guide bar, the guide bar is close to the one end of collar and has seted up the screw thread, the outer fringe symmetry of installation pipe is provided with two sets of draw runner, the installation pipe top has been seted up two sets of pressure ports of getting, and is two sets of pressure ports department all is provided with the flange seat, flange seat top is provided with the conduction pipe, the conduction pipe is kept away from the other end of flange seat and is installed. This special V-arrangement of coal gas awl flowmeter, reasonable in design can carry out effectual measurement to coal gas, can carry out effectual dismantlement clearance to it after using a period simultaneously, is fit for using widely.

Description

V-shaped cone flowmeter special for coal gas

Technical Field

The utility model belongs to the technical field of the flowmeter, concretely relates to special V-arrangement awl flowmeter of coal gas.

Background

The V-cone flowmeter is a flow measuring instrument and is mainly used for measuring the flow of liquid, gas and steam. The flow rate is measured by detecting the pressure difference between the upstream and the downstream by using the throttling effect generated by the V cone in the flow field. When fluid filled in the pipeline flows through the flow orifice plate in the pipeline, the flow velocity forms local contraction at the throttling part of the flow orifice plate, so that the flow velocity is accelerated, the static pressure is reduced, pressure drop or pressure difference is generated before and after the standard orifice plate, the flow of the medium flows is larger, the pressure difference generated before and after the flow orifice plate is larger, and the flow of the fluid can be measured by measuring the pressure difference. During gas transportation measurement, measurement is mostly carried out through a V-shaped cone flowmeter.

The existing V-shaped cone flow meter is mostly undetachable when integrated, and due to the fact that coal gas contains trace impurities, the problems that the impurities are accumulated on a throttling piece and are not easy to clean after long-time measurement are easily caused.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a special V-arrangement awl flowmeter of coal gas to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a special V-shaped cone flowmeter for coal gas comprises a pipe body, a mounting pipe, a V-shaped cone throttling element and support rings, wherein two groups of mounting rings are fixed on the outer edges of two ends of the pipe body, a plurality of groups of mounting holes are dug in the mounting rings, a mounting cavity is dug in the pipe body, two groups of cavity grooves are symmetrically dug in two sides of the mounting cavity, guide rods are fixed in the cavity grooves, threads are formed in one ends, close to the mounting rings, of the guide rods, two groups of sliding strips are symmetrically arranged on the outer edges of the mounting pipe, a group of guide grooves are horizontally dug in the sliding strips in a penetrating mode, the guide grooves are inserted in the guide rods, fixing bolts are fixed on the guide rods, the mounting pipe is fixed in an auxiliary mode through the sliding strips, the V-shaped cone throttling element is arranged in the mounting pipe, the V-shaped cone throttling element is fixed through the two groups of support rings, two groups of pressure, it is two sets of get pressure port department and all be provided with the flange seat, flange seat top is provided with the conduction pipe, the other end that the flange seat was kept away from to the conduction pipe is installed at differential pressure transmitter's both ends.

Preferably, the outer wall of the support ring is attached to the inside of the installation pipe, fixing holes are dug in the outer edge of the support ring, the fixing holes are drilled in the outer edge of the installation pipe, and the support ring and the installation pipe are fixed through a plurality of groups of fastening bolts.

Preferably, a plurality of groups of supporting rods are fixed to the inner edge of the supporting ring, a plurality of groups of fixing rings are fixed to one side, far away from the supporting ring, of each supporting rod, and the fixing rings are fixed to the V-shaped cone throttling piece.

Preferably, it is two sets of get the pressure mouth and get the pressure mouth for the malleation respectively and negative pressure, the malleation is got pressure mouth and negative pressure and is got inside all to be provided with the pressure measurement diaphragm on the pressure mouth, be provided with signal transmission line on the pressure measurement diaphragm, and signal transmission line and differential pressure transmitter electric connection.

Preferably, two sets of measurement chambeies on the installation pipe are got pressure port and negative pressure respectively with the malleation and are got pressure port intercommunication, and measure the chamber and get pressure port and negative pressure and get the junction of pressure port and be provided with the sealing ring with the malleation, the both ends of installation pipe all are provided with rubber seal.

The utility model discloses a technological effect and advantage: this special V-arrangement awl flowmeter of coal gas, through the slide bar of setting on guide bar and the installation pipe in the body and through the fixed V-arrangement awl throttling element of two sets of support rings, can use after a period, dismantle the installation to the body and installation pipe, and then conveniently carry out effectual clearance to the impurity on the throttling element, avoid the difficult problem of carrying out the clearance to inside of integral type flowmeter to take place, through the support ring that sets up, bracing piece and solid fixed ring's on the support ring setting can carry out effectual fixing to V-arrangement awl throttling element, can carry out supplementary rectification through the bracing piece and handle. This special V-arrangement of coal gas awl flowmeter, reasonable in design can carry out effectual measurement to coal gas, can carry out effectual dismantlement clearance to it after using a period simultaneously, is fit for using widely.

Drawings

Fig. 1 is a schematic structural view after the utility model is disassembled;

fig. 2 is a cross-sectional view of the present invention;

FIG. 3 is a cross-sectional view taken along line A-A of FIG. 1 in accordance with the present invention;

fig. 4 is a front view of the supporting ring of the present invention after fixing the fixing ring.

In the figure: the device comprises a pipe body 1, a mounting ring 2, a guide rod 3, a fixing bolt 31, a mounting pipe 4, a slide bar 5, a measuring cavity 6, a fastening bolt 7, a flange seat 8, a conduction pipe 9, a differential pressure transmitter 10, a pressure measuring diaphragm 11, a conical throttling element 12V-shaped, a support ring 13, a support rod 131 and a fixing ring 132.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. 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.

The utility model provides a special V-shaped cone flowmeter for coal gas as shown in figures 1-4, which comprises a pipe body 1, an installation pipe 4, a V-shaped cone throttling element 12 and a support ring 13, two sets of installation rings 2 are fixed on the outer edges of the two ends of the pipe body 1, a plurality of sets of installation holes are dug on the installation rings 2, an installation cavity is dug inside the pipe body 1, two sets of cavity grooves are symmetrically dug on the two sides of the installation cavity, a guide rod 3 is fixed in the cavity groove, a thread is arranged at one end of the guide rod 3 close to the installation ring 2, two sets of slide bars 5 are symmetrically arranged on the outer edge of the installation pipe 4, a set of guide grooves are dug on the slide bars 5 in a horizontal penetrating way, the guide grooves are inserted on the guide rod 3, a fixing bolt 31 is fixed on the guide rod 3, the installation pipe 4 is fixed by the slide bars 5 in an auxiliary way, the V-shaped cone throttling element 12 is arranged inside, v-arrangement awl throttling element 12 is fixed through two sets of support rings 13, two sets of pressure mouths of getting have been seted up at installation pipe 4 top, and are two sets of pressure mouth department of getting all is provided with flange seat 8, flange seat 8 top is provided with conduction pipe 9, the other end that flange seat 8 was kept away from to conduction pipe 9 is installed at differential pressure transmitter 10's both ends.

Specifically, the outer wall of the support ring 13 is attached to the inside of the installation pipe 4, fixing holes are formed in the outer edge of the support ring 13 in an excavating mode, the fixing holes are formed in the outer edge of the installation pipe 4 in a drilling mode, and the support ring 13 and the installation pipe 4 are fixed through a plurality of groups of fastening bolts 7.

Specifically, a plurality of groups of supporting rods 131 are fixed to the inner edge of the supporting ring 13, a plurality of groups of fixing rings 132 are fixed to one side, away from the supporting ring 13, of the supporting rods 131, the supporting rods 131 can play a role in assisting rectification, and the fixing rings 132 are fixed to the V-shaped cone throttling element 12.

It is specific, two sets of get the pressure mouth and get the pressure mouth for the malleation respectively and negative pressure, the malleation is got pressure mouth and negative pressure and is got pressure mouth and go up inside and all be provided with pressure measurement diaphragm 11, be provided with signal transmission line on the pressure measurement diaphragm 11, and signal transmission line and differential pressure transmitter 10 electric connection (the theory of operation between 11 differential pressure transmitters of pressure measurement diaphragm 10 is prior art, differential pressure transmitter 10's model is FMD 77.

Specifically, two sets of measurement chamber 6 on the installation pipe 4 are got pressure port and negative pressure respectively with the malleation and are got pressure port intercommunication, and measure chamber 6 and malleation and get pressure port and negative pressure and get the junction of pressure port and be provided with the sealing ring, the both ends of installation pipe 4 all are provided with rubber seal.

Specifically, when the fluid flows into the flowmeter, the V-shaped cone throttling element 12 makes the fluid axially and symmetrically gradually shrink towards the inner wall of the mounting pipe 4 to form gradual annular shrinkage, the fluid is gradually accelerated while the flow area shrinks, as the V-shaped cone throttling element 12 is on the central axis of the mounting pipe 4, the V-shaped cone throttling element can more effectively act on a high-speed central area of speed distribution, the space between the outer contour of the V-shaped cone throttling element 12 and the inner wall of the mounting pipe 4 is unobstructed, a low-pressure area is formed at the downstream of the V-shaped cone throttling element 12, the support rod 131 plays a role of auxiliary rectification on the fluid in the measuring process, the fluid is effectively measured and calculated through the pressure measuring diaphragm 11, the signal transmission line and the differential pressure transmitter 10 during the measuring, when the V-shaped cone flowmeter is used for a period of time, the pipe body is detached, the fixing bolt 31 is unscrewed, and the mounting pipe 4 is further extracted, the back is taken out to installation tube 4, turns round loose fastening bolt 7, and then dismantles support ring 13, takes out V-arrangement awl throttling element 12 after the dismantlement, carries out effectual clearance to it, and after the clearance was accomplished, resumes original state with the flowmeter. This special V-arrangement of coal gas awl flowmeter, reasonable in design can carry out effectual measurement to coal gas, can carry out effectual dismantlement clearance to it after using a period simultaneously, is fit for using widely.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides a special V-arrangement awl flowmeter of coal gas, includes body (1), installation pipe (4), V-arrangement awl orifice fitting (12) and support ring (13), its characterized in that: two groups of mounting rings (2) are fixed on the outer edges of two ends of the pipe body (1), a plurality of groups of mounting holes are dug on the mounting rings (2), a mounting cavity is dug in the pipe body (1), two groups of cavity grooves are symmetrically dug on two sides of the mounting cavity, guide rods (3) are fixed in the cavity grooves, threads are arranged at one ends, close to the mounting rings (2), of the guide rods (3), two groups of sliding strips (5) are symmetrically arranged on the outer edges of the mounting pipe (4), a group of guide grooves are horizontally dug in the sliding strips (5) in a penetrating manner, the guide grooves are inserted in the guide rods (3), fixing bolts (31) are fixed on the guide rods (3), the mounting pipe (4) is fixed in an auxiliary manner through the sliding strips (5), a V-shaped conical throttling piece (12) is arranged in the mounting pipe (4), and the two groups of V-shaped conical throttling pieces (12) are fixed through a support ring (13), two sets of pressure mouths of getting are seted up at installation pipe (4) top, and are two sets of pressure mouth department of getting all is provided with flange seat (8), flange seat (8) top is provided with conduction pipe (9), the both ends at differential pressure transmitter (10) are installed to the other end that flange seat (8) were kept away from in conduction pipe (9).

2. The special V-shaped cone flowmeter for gas as claimed in claim 1, wherein: the outer wall of support ring (13) and the inside laminating of installation pipe (4), and support ring (13) outer fringe is dug and is equipped with the fixed orifices, the outer fringe of installation pipe (4) is bored and is equipped with the fixed orifices, fix through a plurality of fastening bolt (7) of group between support ring (13) and installation pipe (4).

3. The special V-shaped cone flowmeter for gas as claimed in claim 1, wherein: the inner edge of support ring (13) is fixed with a plurality of groups bracing piece (131), a plurality of groups one side that support ring (13) were kept away from in bracing piece (131) is fixed with solid fixed ring (132), gu fixed ring (132) are fixed on V-arrangement awl orifice fitting (12).

4. The special V-shaped cone flowmeter for gas as claimed in claim 1, wherein: get the pressure mouth and get the pressure mouth for the malleation respectively and get the pressure mouth and negative pressure, the malleation is got the pressure mouth and is got pressure mouth and negative pressure and go up inside and all be provided with pressure measurement diaphragm (11), be provided with signal transmission line on pressure measurement diaphragm (11), and signal transmission line and differential pressure transmitter (10) electric connection.

5. The special V-shaped cone flowmeter for gas as claimed in claim 1, wherein: two sets of measurement chamber (6) on installation pipe (4) are got pressure mouth and negative pressure respectively and are got pressure mouth intercommunication with the malleation, and measure chamber (6) and malleation and get the junction that pressure mouth and negative pressure got pressure mouth and be provided with the sealing ring, the both ends of installation pipe (4) all are provided with rubber seal.