Flow stabilizer of vortex shedding flowmeter

Abstract

The utility model discloses a vortex shedding flowmeter flow stabilizing device, and particularly relates to the vortex shedding flowmeter field, the vortex shedding flowmeter flow stabilizing device comprises a vortex shedding flowmeter main body, the left end of the vortex shedding flowmeter main body is fixedly communicated with a liquid inlet conduit, the left side of the liquid inlet conduit is provided with a flow stabilizing pipe, the left side of the flow stabilizing pipe is provided with a front liquid inlet pipe, and the front liquid inlet pipe is provided with a rear liquid inlet pipe. The outer surface of the liquid inlet guide pipe and the outer surface of the front liquid inlet pipe are fixedly connected with limiting sealing rings, the outer surfaces of the two limiting sealing rings are sleeved with threaded sealing covers, and the outer surface of the flow stabilizing pipe is fixedly connected with a threaded connecting base. The ends, close to each other, of the two threaded sealing covers extend into the two threaded connecting bases correspondingly. According to the vortex shedding flowmeter, the flow stabilizing pipe is arranged in front of the vortex shedding flowmeter main body and is matched with the internal flow stabilizing assembly, so that fluid can pass through the vortex shedding flowmeter main body in a more stable and uniform state, the measurement error caused by unstable fluid is reduced, and the measurement precision is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to vortex flowmeter field, more specifically, the utility model relates to a vortex flowmeter steady flow device. BACKGROUND

[0002] Vortex flowmeter is an advanced instrument based on the principle of measuring gas, steam or liquid flow, set up in the fluid triangular column type vortex generator, when the fluid flows, on the two sides of vortex generator alternately produce regular vortex, namely the karman vortex, the release frequency of these vortexes is related to the average velocity of the fluid flowing through the vortex generator and the characteristic width of the vortex generator, by detecting the frequency of vortex, the flow rate of fluid can be calculated, and then the flow is obtained, compared with other flowmeters, vortex flowmeter produces smaller pressure loss in the pipeline, which helps to reduce operating costs, is used for real-time measurement and control of the flow of fluid in the pipeline, ensures the stability, efficiency and safety of the production process;

[0003] Vortex flowmeter is widely used in chemical industry, petroleum, natural gas and other industries, but the existing vortex flowmeter is difficult to stabilize the fluid in the pipeline during chemical production, the fluid in the pipeline often fluctuates due to intermittent operation of upstream equipment, or lack of rationality of pipeline layout and other factors, which can easily cause vortex flowmeter to have measurement error, and further seriously affect the accuracy of measurement;

[0004] Therefore, a vortex flowmeter steady flow device is proposed to solve the above problems. Utility model content

[0005] In order to overcome the above defects of prior art, the utility model provides a vortex flowmeter steady flow device to solve the problems in the background art.

[0006] To achieve the above object, the utility model provides following technical scheme: a vortex flowmeter steady flow device, including vortex flowmeter main part, the left end of vortex flowmeter main part is connected with the liquid inlet guide tube, the left side of liquid inlet guide tube is equipped with steady flow pipe, the left side of steady flow pipe is equipped with pre liquid inlet pipe, the outer surface of liquid inlet guide tube and the outer surface of pre liquid inlet pipe all are fixedly connected with limit seal ring, the outer surface of two limit seal rings all is equipped with thread seal cover, the outer surface of steady flow pipe is fixedly connected with screw thread connection seat, the end of two thread seal covers that are close to each other respectively extends to the inside of two screw thread connection seats, and the outer surface of thread seal cover is screwed with the inner wall of screw thread connection seat, the inner wall of steady flow pipe is fixedly connected with steady flow support plate, the left side of steady flow support plate is fixedly embedded with bearing, the inner ring of bearing is fixedly connected with the rotating shaft, the outer surface of rotating shaft is fixedly connected with a plurality of steady flow vane, the inner ring of steady flow pipe is fixedly connected with a plurality of steady flow guide plate, the inner ring of steady flow pipe is fixedly connected with honeycomb steady flow plate.

[0007] Preferably, the left side of the two limit seal rings is fixedly connected with a first sealing gasket, and the left side of the two first sealing gaskets is in contact with the inner wall of the two thread seal covers.

[0008] Preferably, the inner wall of the two screw thread connection seats is screwed with a second sealing gasket, and the end of the two thread seal covers that are close to each other is in contact with the left side of the two second sealing gaskets.

[0009] Preferably, the inner ring of the pre liquid inlet pipe is screwed with a thread ring, and the inner ring of the thread ring is screwed with a filter screen.

[0010] Preferably, the left end of the pre liquid inlet pipe is fixedly connected with a water inlet flange, and the left side of the water inlet flange is provided with a plurality of left connecting holes.

[0011] Preferably, the right end of the vortex flowmeter main body is fixedly connected with a communication pipe, the right end of the communication pipe is fixedly connected with a first connecting disc, the right side of the first connecting disc is fixedly installed with a second connecting disc, and the right end of the second connecting disc is fixedly connected with a liquid outlet guide tube.

[0012] Preferably, the upper surface of the vortex flowmeter main body is fixedly connected with a display table, the outer surface of the display table is fixedly connected with two reinforcing plates, and the bottom surface of the two reinforcing plates is fixedly connected with the outer surface of the vortex flowmeter main body.

[0013] Preferably, the outer surface of the two thread seal covers is fixedly connected with a hexagonal rotating block, and the front surface of the vortex flowmeter main body is fixedly connected with a label.

[0014] The utility model discloses technical effect and advantage:

[0015] Compared with the prior art, the vortex flowmeter flow stabilizing device can quickly install the flow stabilizing pipe between the front liquid inlet pipe and the liquid inlet guide pipe through the cooperation of the two threaded connecting seats and the two threaded sealing covers, can make the fluid in the front liquid inlet pipe circulate in the flow stabilizing pipe, can make the fluid forcedly change the flow rate when passing through the flow stabilizing vane, can stabilize the fluid with a high flow rate, and can guide and constrain the fluid entering the vortex flowmeter main body through the flow stabilizing guide plate and the honeycomb flow stabilizing plate, reduce uneven flow rate distribution and vortex generation, and realize the effects of flow straightening and flow stabilization.

[0016] Compared with the prior art, the vortex flowmeter flow stabilizing device can make the fluid pass through the vortex flowmeter main body in a more stable and uniform state through the flow stabilizing pipe installed in front of the vortex flowmeter main body and the cooperation of the internal flow stabilizing assembly, reduces the measurement error caused by unstable fluid, improves the measurement accuracy, solves the problem that the existing vortex flowmeter is difficult to stabilize the fluid in the pipeline when used in chemical production, and the unstable fluid state causes the vortex flowmeter main body to have measurement error, thereby enhancing the measurement stability, reducing the flow rate fluctuation and vortex interference on the measurement signal, making the signal output by the vortex flowmeter main body more stable, reducing signal fluctuation and noise, and improving the reliability of measurement. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a front view of the utility model.

[0018] Figure 2 It is a front view of the utility model.

[0019] Figure 3 It is a front view of the utility model.

[0020] Figure 4 It is a front view of the utility model.

[0021] Figure 5 It is a front view of the utility model. Figure 2 It is a front view of the utility model.

[0022] The attached diagram is labeled as follows: 1. Vortex flowmeter body; 2. Inlet conduit; 3. Flow stabilizing pipe; 4. Pre-inlet conduit; 5. Limiting sealing ring; 6. Threaded sealing cover; 7. Threaded connecting seat; 8. Second sealing gasket; 9. First sealing gasket; 10. Honeycomb flow stabilizing plate; 11. Flow stabilizing support plate; 12. Bearing; 13. Rotating shaft; 14. Flow stabilizing blade; 15. Flow stabilizing guide plate; 16. Threaded ring; 17. Filter screen; 18. Inlet flange; 19. Left connecting hole; 20. Connecting pipe; 21. First connecting plate; 22. Second connecting plate; 23. Outlet conduit; 24. Nameplate; 25. Hexagonal rotating block; 26. Reinforcing plate; 27. Display meter. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0024] As attached Figures 1-5 The illustrated vortex flowmeter stabilization device includes a vortex flowmeter body 1. The vortex flowmeter body 1 is an advanced instrument for measuring the flow rate of gas, steam, or liquid based on the Karman vortex street principle. A triangular prism-shaped vortex generator is placed in the fluid. When the fluid flows through it, regular vortices, i.e., Karman vortices, are alternately generated on both sides of the vortex generator. The release frequency of these vortices is related to the average velocity of the fluid flowing through the vortex generator and the characteristic width of the vortex generator. By detecting the frequency of the vortices, the fluid velocity can be calculated, and thus the flow rate can be obtained. An inlet conduit 2 is fixedly connected to the left end of the vortex flowmeter body 1. A flow stabilizing pipe 3 is located on the left side of the inlet conduit 2, and a pre-inlet pipe 4 is located on the left side of the flow stabilizing pipe 3. The outer surface of the inlet conduit 2 and the pre-inlet pipe 4 are connected... The outer surface of the inlet pipe 4 is fixedly connected with a limiting sealing ring 5. The outer surface of the two limiting sealing rings 5 ​​is fitted with a threaded sealing cover 6. The outer surface of the flow stabilizing pipe 3 is fixedly connected with a threaded connecting seat 7. The two threaded sealing covers 6 extend into the interior of the two threaded connecting seats 7 respectively, and the outer surface of the threaded sealing cover 6 is threadedly connected to the inner wall of the threaded connecting seat 7. The inner wall of the flow stabilizing pipe 3 is fixedly connected with a flow stabilizing support plate 11. The left side of the flow stabilizing support plate 11 is fixedly embedded with a bearing 12. The inner ring of the bearing 12 is fixedly connected with a rotating shaft 13. The outer surface of the rotating shaft 13 is fixedly connected with multiple flow stabilizing blades 14. The inner ring of the flow stabilizing pipe 3 is fixedly connected with multiple flow stabilizing guide plates 15. The inner ring of the flow stabilizing pipe 3 is fixedly connected with a honeycomb flow stabilizing plate 10.

[0025] From the above description, the utility model has the following beneficial effects, wherein: through the cooperation of two threaded connecting bases 7 and two threaded sealing covers 6, the steady flow pipe 3 can be quickly installed between the front liquid inlet pipe 4 and the liquid inlet guide pipe 2, the fluid inside the front liquid inlet pipe 4 can circulate inside the steady flow pipe 3, through the setting of the steady flow vane plate 14, the fluid can be forced to change the flow rate when passing through the steady flow vane plate 14, the fluid with fast flow rate can be stabilized, through the setting of the steady flow guide plate 15 and the honeycomb steady flow plate 10, the fluid entering the vortex flowmeter main body 1 can be guided and constrained, the uneven flow rate distribution and vortex generation are reduced, and the flow stabilizing effect is realized. Embodiment

[0026] On the basis of embodiment one, the scheme in embodiment one is further refined and introduced in combination with the following specific working modes, and details are described below:

[0027] As shown in Figures 1-5 As a preferred embodiment, the two limiting sealing rings 5 are fixedly connected with first sealing pads 9 on the side away from each other, the side away from each other of the two first sealing pads 9 is in contact with the inner wall of the two threaded sealing covers 6, the inner wall of the two threaded connecting bases 7 is threadedly connected with second sealing pads 8, the end of the two threaded sealing covers 6 away from each other is in contact with the side away from each other of the two second sealing pads 8, the inner circle of the front liquid inlet pipe 4 is threadedly connected with a threaded ring 16, the inner circle of the threaded ring 16 is threadedly connected with a filter screen plate 17, further, through the setting of the first sealing pad 9 and the second sealing pad 8, the threaded sealing cover 6, the limiting sealing ring 5 and the threaded connecting base 7 can be sealed, the sealing effect after the installation of the steady flow pipe 3 is improved, the threaded ring 16 can be used for installing the filter screen plate 17, and the filter screen plate 17 can be used for filtering the impurities in the fluid.

[0028] As shown in Figures 1-5As shown, as a preferred embodiment; the left end of the front liquid inlet pipe 4 is fixedly connected with the water inlet flange 18, a plurality of left connecting holes 19 are formed in the left side surface of the water inlet flange 18, the right end of the vortex flowmeter body 1 is fixedly connected with the connecting pipe 20, the right end of the connecting pipe 20 is fixedly connected with the first connecting disc 21, the right side surface of the first connecting disc 21 is fixedly installed with the second connecting disc 22, the right end of the second connecting disc 22 is fixedly connected with the liquid outlet guide pipe 23, the upper surface of the vortex flowmeter body 1 is fixedly connected with the display table 27, the outer surface of the display table 27 is fixedly connected with two reinforcing plates 26, the bottom surfaces of the two reinforcing plates 26 are fixedly connected with the outer surface of the vortex flowmeter body 1, the outer surfaces of the two threaded sealing covers 6 are fixedly connected with hexagonal rotating blocks 25, the front surface of the vortex flowmeter body 1 is fixedly connected with a label 24, further, through the arrangement of the water inlet flange 18 and the plurality of left connecting holes 19, the front liquid inlet pipe 4 is convenient to install and connect, through the arrangement of the first connecting disc 21 and the second connecting disc 22, the vortex flowmeter body 1 and the liquid outlet guide pipe 23 are communicated, the flexibility when the two are connected is improved, through the arrangement of the display table 27, the measured value can be displayed, through the arrangement of the reinforcing plate 26, the display table 27 is reinforced, the display table 27 is more stable, through the arrangement of the hexagonal rotating block 25, the threaded sealing cover 6 is convenient to rotate, the flexibility when the threaded sealing cover 6 is rotated and disassembled is improved.

[0029] The working process of the utility model is as follows:

[0030] When the vortex flowmeter steady flow device is used in the later period, firstly, the steady flow pipe 3 is taken and placed between the front liquid inlet pipe 4 and the liquid inlet guide pipe 2, then the two threaded sealing covers 6 are rotated respectively, one end of the threaded sealing cover 6 is rotated to the inside of the threaded connecting seat 7, until the threaded sealing cover 6 is in close contact with the first sealing gasket 9 and the second sealing gasket 8, then the steady flow pipe 3 is installed between the front liquid inlet pipe 4 and the liquid inlet guide pipe 2, then the fluid is circulated in the inside of the steady flow pipe 3 through the front liquid inlet pipe 4, through the arrangement of the steady flow vane 14, when the fluid passes through the steady flow vane 14, the flow rate is forced to change, the fluid can be preliminarily stabilized, then continues to circulate at the steady flow guide plate 15 and the honeycomb steady flow plate 10, the fluid entering the flowmeter can be guided and constrained, the originally turbulent and irregular fluid flow is adjusted to be a relatively regular and parallel laminar flow state, the uneven flow rate distribution and vortex generation are reduced, so that the rectification and steady flow effects are realized, this is the working process and working principle of the device.

[0031] Finally: the above only for preferred embodiment of the utility model has, and does not use for limiting the utility model, any modification, equivalent replacement, improvement etc. that is made within the spirit and principle of the utility model, should be contained in the protection scope of the utility model.

Claims

1. A vortex flowmeter flow straightener comprising a vortex flowmeter body (1) characterized by: The left end of the vortex flowmeter body (1) is fixedly connected with a liquid inlet guide pipe (2), the left side of the liquid inlet guide pipe (2) is provided with a flow stabilizer (3), the left side of the flow stabilizer (3) is provided with a front liquid inlet pipe (4), the outer surfaces of the liquid inlet guide pipe (2) and the front liquid inlet pipe (4) are fixedly connected with limiting sealing rings (5), the outer surfaces of the two limiting sealing rings (5) are sleeved with threaded sealing covers (6), the outer surface of the flow stabilizer (3) is fixedly connected with threaded connecting seats (7), the ends of the two threaded sealing covers (6) away from each other extend into the interiors of the two threaded connecting seats (7), and the outer surface of the threaded sealing cover (6) is screwed with the inner wall of the threaded connecting seat (7), the inner wall of the flow stabilizer (3) is fixedly connected with a flow stabilizer supporting plate (11), the left side of the flow stabilizer supporting plate (11) is fixedly embedded with a bearing (12), the inner ring of the bearing (12) is fixedly connected with a rotating shaft (13), the outer surface of the rotating shaft (13) is fixedly connected with a plurality of flow stabilizer vane plates (14), the inner ring of the flow stabilizer (3) is fixedly connected with a plurality of flow stabilizer guide plates (15), and the inner ring of the flow stabilizer (3) is fixedly connected with a honeycomb flow stabilizer plate (10).

2. A vortex flowmeter flow straightener according to claim 1, wherein: The side faces of the two limiting sealing rings (5) away from each other are fixedly connected with first sealing gaskets (9), and the side faces of the two first sealing gaskets (9) away from each other are in contact with the inner walls of the two threaded sealing covers (6).

3. A vortex flowmeter flow straightener according to claim 1 wherein: The inner walls of the two threaded connecting seats (7) are screwed with second sealing gaskets (8), and the ends of the two threaded sealing covers (6) away from each other are in contact with the side faces of the two second sealing gaskets (8) away from each other.

4. A vortex flowmeter flow straightener according to claim 1 wherein: The inner ring of the front liquid inlet pipe (4) is screwed with a threaded ring (16), and the inner ring of the threaded ring (16) is screwed with a filter screen plate (17).

5. A vortex flowmeter flow straightener according to claim 1 wherein: The left end of the front liquid inlet pipe (4) is fixedly connected with a water inlet flange (18), and the left side face of the water inlet flange (18) is provided with a plurality of left connecting holes (19).

6. A vortex flowmeter flow straightener according to claim 1 wherein: The right end of the vortex flowmeter body (1) is fixedly connected with a communication pipe (20), the right end of the communication pipe (20) is fixedly connected with a first connecting disc (21), the right side face of the first connecting disc (21) is fixedly installed with a second connecting disc (22), and the right end of the second connecting disc (22) is fixedly connected with a liquid outlet guide pipe (23).

7. A vortex flowmeter flow straightener according to claim 1 wherein: The upper surface of the vortex flowmeter body (1) is fixedly connected with a display table (27), the outer surface of the display table (27) is fixedly connected with two reinforcing plates (26), and the bottom faces of the two reinforcing plates (26) are fixedly connected with the outer surface of the vortex flowmeter body (1).

8. A vortex flowmeter flow straightener according to claim 1 wherein: The outer surfaces of the two threaded sealing covers (6) are fixedly connected with hexagonal rotating blocks (25), and the front face of the vortex flowmeter body (1) is fixedly connected with a nameplate (24).

Images