CN218628449U - Integration level regulation type balance flow meter - Google Patents

Abstract

The utility model discloses an integration level adjustment type balance flow meter, including being located the pressure taking module between first nozzle stub and the second nozzle stub, pressure taking module includes fixed mounting and is getting the stay tube in the pressure taking module main part, pressure taking module main part is connected with the three valves of fixed mounting on the stay tube through getting the pressure pipe, three valves pass through the pressure differential changer and are connected with the gauge outfit electricity, all install first seal ring between pressure taking module main part and first nozzle stub, the second nozzle stub, install a plurality of lead screws between first nozzle stub and the second nozzle stub, the equal mounting nut in both ends of lead screw. The pressure tapping module of the utility model is detachably connected with the short pipes on the two sides, thereby facilitating the maintenance and transportation; the temperature sensor is arranged on the pressure taking module, and the structure is compact.

Description

Integration level regulation type balance flow meter

Technical Field

The utility model relates to a balance flow meter technical field, in particular to integration level adjustment type balance flow meter.

Background

The balance flowmeter evolves from a standard throttling device, namely a pore plate flowmeter, the standard throttling device is only provided with one through hole, the level adjustment type balance flowmeter is provided with a plurality of through holes, the functions of throttling, pressure taking and standard rectification are integrated, and the balance flowmeter is almost suitable for all fluid flow detection. The good wear-resistant balance porous flowmeter disclosed by the utility model Chinese utility model with the overall structure as CN213455640U comprises an inflow inlet flange, a circulation pipe, a connecting seat and a front end measuring pipe, wherein the circulation pipe is fixedly arranged at one end of the inflow inlet flange, the connecting seat is fixedly arranged at the top of the circulation pipe, and the front end measuring pipe is sleeved at the top of the connecting seat. Although the device is relatively compact, the pressure taking module and the flow pipe are fixedly arranged together, and the device is not detachable and inconvenient to transport and maintain.

Disclosure of Invention

The utility model discloses a remedy prior art not enough, provide an integration level adjustment type balance flow meter.

The utility model discloses a realize through following technical scheme:

the utility model provides an integration level adjustment type balance flow meter, is including being located the pressure taking module between first nozzle stub and the second nozzle stub, the pressure taking module includes the stay tube of fixed mounting in the pressure taking module main part, the pressure taking module main part is connected with the three valves of fixed mounting on the stay tube through the pressure taking pipe, the three valves passes through the pressure differential changer and is connected with the gauge outfit electricity, all install first seal ring between pressure taking module main part and first nozzle stub, the second nozzle stub, install a plurality of lead screws between first nozzle stub and the second nozzle stub, the equal mounting nut in both ends of lead screw.

Still fixed mounting has a holding ring in the pressure tapping module main part, the outer fringe of holding ring is equipped with a plurality of draw-in grooves that match with the lead screw.

The pressure taking module is characterized in that a temperature sensor is detachably mounted on the pressure taking module body and is electrically connected with the gauge outfit.

The die block main body comprises an inner pipe and an outer shell welded outside the inner pipe, a closed hollow cavity is formed between the outer shell and the inner pipe, and a porous ring is welded in the inner pipe; the cavity is internally provided with a first arc-shaped pipe and a second arc-shaped pipe which are respectively positioned at two sides of the porous ring, two ends of the first arc-shaped pipe and two ends of the second arc-shaped pipe are respectively fixedly connected with the pressure taking holes on the inner pipe, and the first arc-shaped pipe and the second arc-shaped pipe are respectively connected with the three valve groups through a high-pressure taking pipe and a low-pressure taking pipe.

And a mounting sleeve is fixed on the pressure tapping module main body, and the temperature sensor is in threaded connection with the mounting sleeve.

The mounting sleeve comprises a small-diameter end and a large-diameter end with an internal thread, a first through hole is formed in the inner tube, a second through hole matched with the first through hole is formed in the shell, the first through hole and the second through hole are fixedly connected with the two ends of the small-diameter end respectively, and an external thread connecting piece matched with the large-diameter end is fixedly mounted on the temperature sensor.

And a step is formed at the joint of the small-diameter end and the large-diameter end, and a second sealing washer is arranged between the second end of the external thread connecting piece and the step.

The first end of the external thread connecting piece is provided with a clamping square.

The utility model discloses has following technological effect:

the pressure taking module is detachably connected with the short pipes on the two sides, so that the maintenance and the transportation are convenient; the temperature sensor is arranged on the pressure taking module, so that the structure is compact; during metering, the high pressure and the low pressure are both measured by adopting double holes, so that the disturbance of vortex can be reduced, and the detection stability is improved. And the multi-stage signals of differential pressure, static pressure, temperature and the like are integrated into a computer in an advanced flowmeter head for real-time dynamic compensation and correction.

Drawings

The present invention will be further described with reference to the accompanying drawings.

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

Fig. 2 is a side view schematic diagram of the present invention.

Fig. 3 is a schematic structural diagram of the pressure measuring module.

Fig. 4 is a schematic structural view of the retaining ring.

Fig. 5 is a schematic structural view of the first sealing gasket.

Fig. 6 is a schematic diagram of the fit relationship between the temperature sensor and the mounting sleeve.

Fig. 7 is a schematic structural view of the temperature sensor.

Fig. 8 is a schematic diagram of the internal structure of the pressure measuring module.

In the figure, 1-a first short pipe, 2-a pressure taking module, 3-a positioning ring, 4-a first sealing washer, 5-a second short pipe, 6-a meter head, 7-a differential pressure transmitter, 8-a three-valve set, 9-a porous ring, 10-a pressure taking hole, 11-an outer shell, 12-an inner pipe, 13-a fluid through hole, 14-an installation sleeve, 15-a temperature sensor, 16-a supporting pipe, 17-a clamping groove, 18-a first sealing washer body, 19-a convex edge, 20-a large-diameter end, 21-a small-diameter end, 22-a square, 23-an external thread connecting piece, 24-a second sealing washer, 25-a low-pressure taking pipe, 26-a high-pressure taking pipe, 27-a first arc pipe, 28-a first through hole and 29-a second through hole.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly or indirectly connected to the other element. It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means one or more than one; the meaning of "plurality" is two or more unless specifically limited otherwise. The "fixed connection" may be bolted, welded, interference fit, integrally formed, etc. as is known in the art.

Fig. 1 to 8 show an embodiment of the present invention. The embodiment provides an integrated level adjustment type balance flowmeter which comprises a first short pipe 1, a pressure tapping module 2 and a second short pipe 5. The pressure taking module 2 is connected with a differential pressure transmitter 7 through a three-valve group 8, and the differential pressure transmitter 7 is electrically connected with the gauge head 6. Pressure taking module 2 includes that the cross-section is the circular shape and gets pressure module main part, installs stay tube 16 in getting pressure module main part, and three valves 8 fixed mounting are at stay tube 16 tops, and pressure taking module main part is connected with three valves 8 through getting pressure pipe.

As shown in the attached drawing 1, the first short pipe 1 and the second short pipe 5 have the same structure, both ends are provided with flange plates, the pressure tapping module main body is positioned between the first short pipe 1 and the second short pipe 5, a first sealing washer 4 is arranged between the pressure tapping module main body and the first short pipe 1 as well as between the pressure tapping module main body and the second short pipe 5, a screw rod is arranged between the flange plates which are close to each other of the first short pipe 1 and the second short pipe 5, and nuts are arranged at both ends of the screw rod. And rotating the nut to pull the first short pipe 1 and the second short pipe 5 towards each other, and recording the pressure taking module body between the first short pipe 1 and the second short pipe 5.

Still fixed mounting has the holding ring 3 of an arc type in getting on pressing the module main part to the outer fringe of holding ring 3 is equipped with a plurality of draw-in grooves 17 that match with the lead screw, and holding ring 3 card prevents to get that pressing module 2 from taking place the displacement at the lead screw.

The first sealing washer 4 is shown in fig. 5, and includes an annular first sealing washer body 18, the outer diameter of the first sealing washer body 18 matches the outer diameter of the pressure tapping module body, and an annular convex edge 19 is fixedly mounted on the outer edge of the first sealing washer body 18. When in use, the first sealing gaskets 4 are buckled at the two ends of the pressure taking module body.

The internal structure of the pressure tapping module 2 is as shown in fig. 8, and the pressure tapping module body comprises an inner pipe 12 and an outer shell 11 welded outside the inner pipe 12, and a closed hollow cavity is formed between the outer shell 11 and the inner pipe 12. The middle part of the inner pipe 12 is welded with a porous ring 9, and the porous ring 9 is provided with 4 fluid through holes 13.

Install first arc pipe 27 and second arc pipe in the cavity to first arc pipe 27 and second arc pipe are located the both sides of porous ring 9 respectively, and the both ends of first arc pipe 27, the both ends of second arc pipe respectively with the hole 10 fixed connection of getting on the inner tube. The middle part of the first arc-shaped pipe 27 is connected with the three valve groups 8 through a high-pressure tapping pipe 26, and the middle part of the second arc-shaped pipe is connected with the three valve groups 8 through a low-pressure tapping pipe 25. The high pressure tapping pipe 26 and the low pressure tapping pipe 25 are housed in the support pipe 16.

A temperature sensor 15 is detachably attached to the pressure measurement module main body, and the temperature sensor 15 is electrically connected to the gauge head 6. The inner tube 12 is provided with a first through hole 28, the outer shell 11 is provided with a second through hole 29 matched with the first through hole 28, the first through hole 28 and the second through hole 29 are respectively and fixedly connected with two ends of a small-diameter end 21 of the installation sleeve, a large-diameter end 20 is fixedly installed on the small-diameter end 21, the large-diameter end 20 is located outside the outer shell 11, and a step is formed at the joint of the small-diameter end 21 and the large-diameter end. The large diameter end 20 is internally threaded. An external thread connecting piece 23 is fixedly arranged on the temperature sensor 15, and a clamping square 22 is arranged at the first end of the external thread connecting piece 23. A second sealing washer 24 is installed between the second end of the external threaded connector 23 and the step.

The aforementioned positioning ring 3 and support tube 16 are fixed to the housing 11.

Because the hierarchical regulation type balance flow sensor has the characteristic of a symmetrical porous structure, the flow field can be balanced, the eddy, vibration and signal noise are reduced, the stability of the flow field is greatly improved, the linearity is improved by 5-10 times compared with a pore plate, the repeatability is improved by 54 percent and is 0.15 percent, and the performance advantage is obvious. The flow field is stable, the pressure recovery is two times faster than that of a pore plate, the straight pipe sections in front and back are required to be generally 1D after 3D, and the minimum length can be less than 0.5D when the straight pipe sections are straight, so that a large number of straight pipe sections, particularly pipelines made of special expensive materials, are omitted. The porous symmetrical balance design reduces the formation of turbulent shear force and vortex, reduces the loss of kinetic energy, and reduces the permanent pressure loss by 2.5 times compared with a pore plate under the same measuring working condition, thereby saving considerable operating energy cost and being an energy-saving instrument; the formation of turbulent shear force and vortex is reduced, so that the formation of a retention dead zone is greatly reduced, a dirty medium is ensured to smoothly pass through a plurality of holes, and the chance that the fluid holes are blocked is reduced. The orifice plate has the same use method and shape as the orifice plate, so that the orifice plate can be directly replaced without any change of a pipe and the change of a related instrument, and the orifice plate is suitable for changing the orifice plate into a level regulation type balance flowmeter in the transformation of the energy metering EMS of a whole plant. According to the test result, the performance of the flowmeter is balanced, so that the flow speed can be from minimum to sonic speed; the minimum Reynolds number can be lower than 200, and the maximum Reynolds number is higher than 107; the beta value can be 0.25-0.90. Because the turbulent shear force is obviously reduced, the direct friction between the medium and the throttling element is greatly reduced, the beta value is kept unchanged for a long time, and the whole instrument has no movable part, so that the stability can be kept for a long time. As with orifice plate and other throttling devices, the working temperature and pressure depend on the material and grade of the pipeline and the flange, the working temperature can reach 850 ℃, and the working pressure can reach 42MPa. During installation, firstly, the three valve groups 8, the differential pressure transmitter 7, the gauge outfit 6 and the pressure taking module 2 are installed together, the first sealing washer 4 is installed on a pressure module main body of the pressure taking module 2, then two lead screws are installed on the first short pipe 1 and the second short pipe 5, the positioning ring 3 is clamped on the two lead screw mountains, then other lead screws are installed, after all the lead screws are installed, nuts are installed at two ends of the lead screws and screwed, and therefore the pressure taking module 2 is fixed. Then, the temperature sensor 15 is mounted, and the temperature sensor 15 is connected to the gauge head.

Claims (8)

1. The utility model provides an integration level control type balance flow meter which characterized in that: including being located pressure taking module (2) between first nozzle stub (1) and second nozzle stub (5), pressure taking module (2) includes the stay tube of fixed mounting in pressure taking module main part, pressure taking module main part is connected with three valves (8) of fixed mounting on stay tube (16) through pressure taking pipe, three valves (8) are connected with gauge outfit (6) electricity through differential pressure changer (7), all install first seal ring (4) between pressure taking module main part and first nozzle stub (1), second nozzle stub (5), install a plurality of lead screws between first nozzle stub (1) and the second nozzle stub (5), the equal erection nut in both ends of lead screw.

2. The integrated level-regulating balanced flow meter of claim 1, wherein: still fixed mounting has a holding ring (3) in the pressure tapping module main part, the outer fringe of holding ring (3) is equipped with a plurality of draw-in grooves (17) that match with the lead screw.

3. The integrated level-regulating balanced flow meter of claim 2, wherein: the pressure taking module is characterized in that a temperature sensor (15) is detachably mounted on the pressure taking module body, and the temperature sensor (15) is electrically connected with the gauge outfit (6).

4. The integrated level-regulating balanced flow meter of claim 3, wherein: the die block main body comprises an inner pipe (12) and an outer shell (11) welded outside the inner pipe (12), a closed hollow cavity is formed between the outer shell (11) and the inner pipe (12), and a porous ring (9) is welded in the inner pipe (12); install first arc pipe (27) and the second arc pipe that is located the both sides of porous ring (9) respectively in the cavity, the both ends of first arc pipe (27), the both ends of second arc pipe respectively with on the inner tube get pressure hole (10) fixed connection, first arc pipe (27) and second arc pipe are connected with three valves (8) through high pressure pipe (26), low pressure pipe (25) respectively.

5. The integrated level-regulating balanced flow meter of claim 4, wherein: and a mounting sleeve is fixed on the pressure taking module main body, and the temperature sensor (15) is in threaded connection with the mounting sleeve.

6. The integrated level-regulating balanced flow meter of claim 5, wherein: the installation sleeve pipe includes path end (21) and is equipped with internal screw thread big footpath end (20), be equipped with first through-hole (28) on inner tube (12), be equipped with on shell (11) second through-hole (29) that match with first through-hole (28), first through-hole (28) and second through-hole (29) respectively with the both ends fixed connection of path end (21), fixed mounting has external screw thread connecting piece (23) with big footpath end (20) matching on temperature sensor (15).

7. The integrated level-regulating balanced flow meter of claim 6, wherein: the connecting part of the small-diameter end (21) and the large-diameter end forms a step, and a second sealing washer (24) is arranged between the second end of the external thread connecting piece (23) and the step.

8. The integrated level-regulating balanced flow meter of claim 7, wherein: and a clamping square (22) is arranged at the first end of the external thread connecting piece (23).

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