CN214621310U

CN214621310U - Temperature and pressure compensation vortex shedding flowmeter

Info

Publication number: CN214621310U
Application number: CN202120786736.1U
Authority: CN
Inventors: 井琪
Original assignee: Xi'an Dexinor Automation Equipment Co ltd
Current assignee: Xi'an Dexinor Automation Equipment Co ltd
Priority date: 2021-04-17
Filing date: 2021-04-17
Publication date: 2021-11-05
Anticipated expiration: 2031-04-17

Abstract

The utility model relates to a temperature and pressure compensation vortex shedding flowmeter technical field just discloses a temperature and pressure compensation vortex shedding flowmeter, including connecting pipe, two sleeve pipes, two lantern rings and two first flanges, the fixed cover of the last outer wall of connecting pipe has connect temperature and pressure compensation vortex shedding flowmeter body, the left and right both ends of connecting pipe are all fixed and are equipped with the second flange, two the sheathed tube outer wall is all fixed and has cup jointed two the annular plate all rotates through first bearing and has cup jointed a plurality of internal thread pipes, two all fixed drive mechanism that is equipped with between the left side inner wall of the lantern ring and the left side outer wall of the internal thread pipe that corresponds. The utility model discloses simplify the use installation of temperature and pressure compensation vortex flowmeter, can prevent moreover that flange joint from leaking, temperature and pressure compensation vortex flowmeter's measuring result is more accurate.

Description

Temperature and pressure compensation vortex shedding flowmeter

Technical Field

The utility model relates to a temperature and pressure compensation vortex shedding flowmeter technical field especially relates to a temperature and pressure compensation vortex shedding flowmeter.

Background

The temperature and pressure compensated vortex street flowmeter is mainly used for measuring the flow of medium fluid in industrial pipeline. The pressure loss is small, the range is wide, the precision is high, it is hardly influenced by the parameters of fluid density, pressure, temperature and viscosity when measuring the working volume flow, there is no movable mechanical parts, so the reliability is high and the maintenance is small.

The temperature and pressure compensation vortex shedding flowmeter with the patent number of CN209166532U controls the outer heat insulation barrel to rotate along an annular slide rail by arranging the inner heat insulation barrel, the outer heat insulation barrel, the inner vent hole and the outer vent hole, so that the overlapping area of the inner vent hole and the outer vent hole can be changed, the size of the whole vent hole can also be changed, the design of double cylinders of the inner heat insulation barrel and the outer heat insulation barrel avoids the flowmeter from being exposed outside, and the flowmeter can be used in places with higher temperature, thermal radiation of equipment or some complex environments.

However, the installation process of the technical scheme of connecting the flanges with the water pipe is complex, a plurality of bolts need to be screwed in sequence, the screwing force of each bolt is difficult to control, the screwing degree of each bolt is different, the connection part of the two flanges is eccentric and is prone to water leakage due to repeated use, and the measurement accuracy of the temperature and pressure compensation vortex shedding flowmeter is affected.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving among the prior art warm-pressing compensation vortex street flowmeter and all using flange joint usually, the installation is loaded down with trivial details, need twist in proper order and move a plurality of bolts, the dynamics of twisting of every bolt of difficult control moreover, the degree of screwing up of every bolt is different, repetitious usage can make the junction of two flanges appear the eccentric wear and lead to leaking, influence the accurate problem of measurement of warm-pressing compensation vortex street flowmeter, and the warm-pressing compensation vortex street flowmeter who proposes.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a temperature and pressure compensation vortex shedding flowmeter comprises a connecting pipe, two sleeves, two lantern rings and two first flanges, the fixed cover of last outer wall of connecting pipe has connect temperature and pressure compensation vortex flowmeter body, the left and right both ends of connecting pipe are all fixed and are equipped with the second flange, two sheathed tube outer wall is all fixed the annular plate of having cup jointed two the annular plate all rotates through first bearing and has cup jointed a plurality of internal thread pipes, two the inner wall of the lantern ring rotates through the second bearing and the outer wall of the annular plate that corresponds respectively and cup joints, two all fixed drive mechanism that is equipped with between the left side inner wall of the lantern ring and the left side outer wall of the internal thread pipe that corresponds, two a plurality of bolts, every are all cup jointed to first flange the pole wall of bolt cup joints with the second flange activity that corresponds respectively, every the pole wall of bolt respectively with the inner wall threaded connection of the internal thread pipe that corresponds.

Preferably, drive mechanism includes ring gear and a plurality of gear, the outer wall of ring gear and the inner wall fixed cup joints of the lantern ring, and is a plurality of the gear is fixed cup joints and is connected with the inner wall meshing of ring gear respectively with the left side outer wall of the internal thread pipe that corresponds respectively.

Preferably, the outer walls of the left side and the right side of the connecting pipe are fixedly provided with a plurality of sliding blocks, the inner wall of the sleeve is provided with a plurality of limiting sliding grooves, and each sliding block is connected with the corresponding limiting sliding groove in a sliding mode.

Preferably, the left side wall of first flange is fixed and is equipped with the inlet tube, and the right side wall of first flange is fixed and is equipped with the drain pipe.

Preferably, the left side and the right side of the upper surface of the connecting pipe are respectively and fixedly sleeved with a temperature sensor and a pressure sensor.

Preferably, a plurality of pull rods are fixedly arranged on the outer walls of the two lantern rings.

Compared with the prior art, the utility model provides a temperature and pressure compensation vortex shedding flowmeter possesses following beneficial effect:

this temperature and pressure compensation vortex street flowmeter, through setting up a plurality of pull rods at lantern ring outer wall, at the elegant compensation vortex street flow meter of installation, pass the second flange with a plurality of bolts in proper order, the pole wall of a plurality of bolts and the inner wall contact of the internal thread pipe that corresponds, then stimulate a plurality of pull rods respectively, and then it is rotatory to drive the lantern ring, thereby it is rotatory simultaneously to drive a plurality of internal thread pipes through drive mechanism, can tighten a plurality of bolts simultaneously, the installation is simple, and the tightening degree of every bolt is the same, eccentric wear can not appear in the junction of first flange and second flange, prevent to leak and influence temperature and pressure compensation vortex street flowmeter's measuring result.

The part that does not relate to among the device all is the same with prior art or can adopt prior art to realize, the utility model discloses simplified the use installation of temperature and pressure compensation vortex shedding flowmeter, can prevent moreover that flange joint from leaking, temperature and pressure compensation vortex shedding flowmeter's measuring result is more accurate.

Drawings

Fig. 1 is a schematic structural diagram of a temperature and pressure compensation vortex shedding flowmeter provided by the present invention;

FIG. 2 is an enlarged view of a portion A of FIG. 1;

fig. 3 is a schematic sectional view along the direction B-B in fig. 1.

In the figure: the vortex flowmeter comprises a connecting pipe 1, a sleeve 2, a lantern ring 3, a first flange 4, a temperature and pressure compensation vortex shedding flowmeter body 5, a second flange 6, a sliding block 7, an annular plate 8, a threaded pipe 9, a bolt 10, a gear ring 11, a gear 12, a water inlet pipe 13, a water outlet pipe 14, a temperature sensor 15, a pressure sensor 16 and a pull rod 17.

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.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Embodiment 1 as shown in fig. 1 to 3, a temperature and pressure compensated vortex shedding flowmeter comprises a connecting pipe 1, two sleeves 2, two lantern rings 3 and two first flanges 4, the fixed cover of last outer wall of connecting pipe 1 has connect temperature and pressure compensation vortex street flowmeter body 5, the left side of connecting pipe 1, the equal fixed second flange 6 that is equipped with in right side both ends, two outer walls of two sleeve pipes 2 are all fixed two ring plates 8 of having cup jointed the annular plate and all have been cup jointed a plurality of internal thread pipes 9 through first bearing rotation, the inner wall of two lantern rings 3 rotates through the second bearing and the outer wall of the annular plate 8 that corresponds respectively and cup joints, all fixed drive mechanism that is equipped with between the left side inner wall of two lantern rings 3 and the left side outer wall of the internal thread pipe 9 that corresponds, two first flanges 4 are all fixed to have cup jointed a plurality of bolts 10, the pole wall of every bolt 10 cup joints with the second flange 6 activity that corresponds respectively, the pole wall of every bolt 10 respectively with the inner wall threaded connection of the internal thread pipe 9 that corresponds.

Embodiment 2 is based on embodiment 1 and is shown in fig. 2-3, the transmission mechanism includes a gear ring 11 and a plurality of gears 12, an outer wall of the gear ring 11 is fixedly sleeved with an inner wall of the lantern ring 3, the plurality of gears 12 are respectively fixedly sleeved with an outer wall of a left side of the corresponding internal threaded pipe 9 and are respectively engaged with the inner wall of the gear ring 11, the two lantern rings 3 can drive the plurality of internal threaded pipes 9 to rotate simultaneously through the corresponding transmission mechanism, it is ensured that the tightening degree of each bolt 10 is the same, and it is prevented that the joint of the first flange 4 and the second flange 6 is eccentric and worn, water leakage is caused, and the measurement result of the temperature and pressure compensation vortex shedding flowmeter body 5 is affected.

Embodiment 3 is based on embodiment 1 and as shown in 1-3, the outer walls of the left and right sides of the connecting pipe 1 are both fixedly provided with a plurality of sliding blocks 7, the inner walls of the two sleeves 2 are both provided with a plurality of limiting sliding grooves, each sliding block 7 is respectively connected with the corresponding limiting sliding groove in a sliding manner, the two sleeves 2 can transversely move on the outer wall of the connecting pipe 1 through the plurality of sliding blocks 7, and the two sleeves 2 can be prevented from rotating.

Embodiment 4 is based on embodiment 1, as shown in fig. 1, a water inlet pipe 13 is fixedly arranged on the left side wall of the left first flange 4, a water outlet pipe 14 is fixedly arranged on the right side wall of the right first flange 4, water flows into the connecting pipe 1 through the water inlet pipe 13, and the water flows are discharged through the water outlet pipe 14 after being measured by the temperature and pressure compensation vortex shedding flowmeter body 5.

Embodiment 5 is based on embodiment 1, as shown in fig. 1, a temperature sensor 15 and a pressure sensor 16 are fixedly sleeved on the left side and the right side of the upper surface of connecting pipe 1, respectively, and temperature sensor 15 and pressure sensor 16 can sense the temperature and pressure in connecting pipe 1.

In embodiment 6, on the basis of embodiment 1, as shown in fig. 2 to 3, a plurality of pull rods 17 are fixedly arranged on the outer walls of the two lantern rings 3, and the pull rods 17 can respectively drive the corresponding lantern rings 3 to rotate.

The utility model discloses in, during the use, pass second flange 6 with a plurality of bolts 10 in proper order, the pole wall of a plurality of bolts 10 and the inner wall contact of the internal thread pipe 9 that corresponds, then stimulate a plurality of pull rods 17 respectively, and then it is rotatory to drive lantern ring 3, thereby it is rotatory simultaneously to drive a plurality of internal thread pipes 9 through drive mechanism, can screw up a plurality of bolts 10 simultaneously, the installation is simple, and the degree of screwing up of every bolt 10 is the same, eccentric wear can not appear in first flange 4 and second flange 6's junction, prevent to leak and influence the measuring result of temperature pressure compensation vortex street flowmeter body 5, after being connected two second flanges 6 with the first flange 1 that corresponds in proper order, rivers get into connecting pipe 1 through inlet tube 13, through temperature pressure compensation vortex street flowmeter body 5 after measuring discharge rivers through drain pipe 14.

Compared with the prior art, the installation process that this technical scheme first flange 4 and second flange 6 are connected is simple, can twist simultaneously a plurality of bolts 10, and the degree of screwing up of every bolt 10 is the same moreover, and eccentric wear can not appear in the junction of first flange 4 and second flange 6 after the repetitious usage, can prevent to leak the street, can not influence the accurate advantage of measurement of temperature and pressure compensation vortex flowmeter body 5.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A temperature and pressure compensation vortex street flowmeter comprises a connecting pipe (1), two sleeve pipes (2), two lantern rings (3) and two first flanges (4), and is characterized in that the upper outer wall of the connecting pipe (1) is fixedly sleeved with a temperature and pressure compensation vortex street flowmeter body (5), the left and right ends of the connecting pipe (1) are fixedly provided with second flanges (6), the outer walls of the two sleeve pipes (2) are fixedly sleeved with two annular plates (8), the annular plates (8) are rotatably sleeved with a plurality of internal thread pipes (9) through first bearings, the inner walls of the two lantern rings (3) are rotatably sleeved with the outer walls of the corresponding annular plates (8) through second bearings, a transmission mechanism is fixedly arranged between the inner walls of the left sides of the two lantern rings (3) and the outer walls of the left sides of the corresponding internal thread pipes (9), the two first flanges (4) are fixedly sleeved with a plurality of bolts (10), the rod wall of each bolt (10) is movably sleeved with the corresponding second flange (6), and the rod wall of each bolt (10) is in threaded connection with the inner wall of the corresponding internal threaded pipe (9).

2. The vortex shedding flowmeter with temperature and pressure compensation according to claim 1, wherein the transmission mechanism comprises a gear ring (11) and a plurality of gears (12), the outer wall of the gear ring (11) is fixedly sleeved with the inner wall of the lantern ring (3), and the plurality of gears (12) are respectively fixedly sleeved with the outer wall of the left side of the corresponding internally threaded pipe (9) and are respectively meshed with the inner wall of the gear ring (11).

3. The vortex shedding flowmeter with temperature and pressure compensation according to claim 1, wherein a plurality of sliding blocks (7) are fixedly arranged on the outer walls of the left side and the right side of the connecting pipe (1), a plurality of limiting sliding grooves are formed in the inner walls of the two sleeves (2), and each sliding block (7) is slidably connected with the corresponding limiting sliding groove.

4. The vortex shedding flowmeter with temperature and pressure compensation according to claim 1, wherein a water inlet pipe (13) is fixedly arranged on the left side wall of the first flange (4) on the left side, and a water outlet pipe (14) is fixedly arranged on the right side wall of the first flange (4) on the right side.

5. The vortex shedding flowmeter with temperature and pressure compensation according to claim 1, wherein a temperature sensor (15) and a pressure sensor (16) are respectively fixedly sleeved on the left side and the right side of the upper surface of the connecting pipe (1).

6. The vortex shedding flowmeter with temperature and pressure compensation according to claim 1, wherein a plurality of pull rods (17) are fixedly arranged on the outer wall of each of the two lantern rings (3).