CN215865357U

CN215865357U - Rectifier

Info

Publication number: CN215865357U
Application number: CN202122145209.5U
Authority: CN
Inventors: 喻忠奎; 盛立; 徐俊; 陈建海; 陈茜露
Original assignee: Chaoyi Technology Co ltd
Current assignee: Chaoyi Technology Co ltd
Priority date: 2021-09-07
Filing date: 2021-09-07
Publication date: 2022-02-18
Anticipated expiration: 2031-09-07

Abstract

The present invention provides a rectifier, characterized by comprising: the water inlet device comprises a body, a water outlet pipe and a water inlet pipe, wherein the body is tubular and is provided with a water inlet end, and the water inlet end forms a water inlet; the shaft part extends along the axial direction of the body, and a flow dividing part is formed on one side of the water inlet of the body by the shaft part; and the rib parts surround the axis of the body and are uniformly provided with a plurality of groups, the rib parts are connected with the shaft part on one radial side of the body, the other side of the rib parts is connected with the body, and a rectifying hole is formed between every two adjacent rib parts.

Description

Rectifier

Technical Field

The utility model relates to a rectifier which is suitable for an ultrasonic water meter.

Background

The existing ultrasonic water meter has the problem of inaccurate measurement, which is mainly caused by unstable water flow state in the water meter. The utility model discloses an in the chinese utility model patent of authorizing the notice number CN204854843U, authorizing the notice day for 2015 12 months 9 days, an ultrasonic water meter rectifier is disclosed, it includes the radome fairing of toper tubular structure, and the entrance point diameter of this radome fairing is greater than the exit end diameter, there is the flow distribution plate along circumference evenly distributed on the radome fairing inner wall, every two are adjacent form the flow straightener between the flow distribution plate, the exit end of radome fairing is equipped with the baffle with its internal diameter looks adaptation, is equipped with the rectifying hole that is cellular distribution on this baffle. The ultrasonic water meter rectifier has the following disadvantages: the flow distribution plate can block the water flow and influence the stability of the water flow state; the overall structural strength of the rectifier is low.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects in the prior art and provide a rectifier with a reasonable structural design.

The technical scheme adopted by the embodiment of the utility model for solving the problems is as follows: a rectifier, comprising:

the water inlet device comprises a body, a water outlet pipe and a water inlet pipe, wherein the body is tubular and is provided with a water inlet end, and the water inlet end forms a water inlet;

the shaft part extends along the axial direction of the body, and a flow dividing part is formed on one side of the water inlet of the body by the shaft part; and

the rib portion surrounds the axis of the body and is evenly provided with a plurality of groups, the rib portion is located on one radial side of the body and is connected with the shaft portion, the other side of the rib portion is connected with the body, and a rectifying hole is formed between the adjacent rib portions.

In the embodiment of the utility model, the cross-sectional area of the end part of the flow dividing part is decreased progressively in the direction away from the water inlet end in the axial direction of the body.

The end part of the flow dividing part is hemispherical.

The flow dividing part comprises a stop surface, the stop surface is connected with the rib part and is in smooth transition with the rib part, and the stop surface corresponds to the rib part and the flow rectifying hole respectively.

In the embodiment of the utility model, the distance from the end surface of the rib part on one side of the water inlet end to the water inlet end is gradually reduced in the direction of approaching the shaft part in the radial direction of the body.

The end face of the rib part on one side of the water inlet end comprises a first curved surface and a second curved surface, the first curved surface is smoothly connected with the second curved surface, the first curved surface is in an outward convex shape, the second curved surface is in an inward concave shape, and the second curved surface is connected with the stop surface.

In the embodiment of the utility model, the connecting part of the second curved surface and the stop surface is in arc transition and tangent with each other.

In the embodiment of the utility model, the second curved surface is tangent to the end surface of the water inlet end.

In the embodiment of the utility model, on one section of the rectifier, the axis of the body is vertical to the section, and the ratio of the sectional area of the rectifying hole on the section to the total area of the section of the body is 0.3-0.6.

The ratio of the outer diameter of the shaft part to the outer diameter of the body is 20-30%.

Compared with the prior art, the utility model has one or more of the following advantages or effects: the structure is simple, and the design is reasonable; the flow dividing part has a flow dividing effect, and when water flows towards the flow dividing part, the water flows can be scattered, so that the water flows can enter the rectifier more smoothly and uniformly; in the direction which is far away from the water inlet end in the axial direction of the body, the section area of the end part of the flow dividing part is reduced progressively, so that the end part of the flow dividing part has a better flow dividing effect, and the water flow which rushes to the flow dividing part along the axial direction of the body is ensured to smoothly pass through the end part of the flow dividing part; the setting of backstop face, on the one hand, the rivers that partly flow through the end of reposition of redundant personnel portion can be cushioned stopping face everywhere to this more smooth and easy inflow rectifying hole, on the other hand, the rivers that assemble the reposition of redundant personnel portion along the terminal surface of muscle portion are broken up by the backstop face, and enter rectifying hole.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic front view of a rectifier according to an embodiment of the present invention.

Fig. 2 is a schematic perspective view of a rectifier according to an embodiment of the present invention.

Fig. 3 is a schematic perspective view of a rectifier in an embodiment of the utility model.

Fig. 4 is an enlarged view at a in fig. 3.

Detailed Description

To facilitate an understanding of the utility model, the utility model will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. The utility model may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete. The following directions such as "axial direction", "above", "below", etc. are for more clearly showing the structural positional relationship and are not intended to limit the present invention. In the present invention, the terms "vertical", "horizontal" and "parallel" are defined as: including ± 10% of cases based on the standard definition. For example, vertical generally refers to an angle of 90 degrees relative to a reference line, but in the present invention, vertical refers to a situation within 80 to 100 degrees inclusive.

The present invention will be described in further detail below by way of examples with reference to the accompanying drawings, which are illustrative of the present invention and are not to be construed as limiting the present invention.

Referring to fig. 1 to 4, the rectifier of the present embodiment includes a body 1, a shaft 2, and a rib 3.

The body 1 in this embodiment is tubular, and the body 1 has a water inlet end 11, and the water inlet end 11 forms a water inlet 12. The water flow enters the body 1 at the inlet 12. The other side of the body 1 opposite to the water inlet end 11 is provided with a water outlet end 13. The body 1 in this embodiment is circular or substantially circular in cross-section.

The outer surface of body 1 in this embodiment sets up card muscle 14, and card muscle 14 sets up along the axial extension of body 1, and the height of card muscle 14 is in the direction from intaking end 11 to play water end 13 and is progressively decreased gradually. The provision of the ribs 14 serves primarily to secure the commutator against rotation or movement at the water meter inlet when the commutator is mounted in a mounting hole in a corresponding component. And the normal insertion of the rectifier is not influenced by the arrangement of the clamping ribs 14.

The shaft portion 2 in this embodiment is disposed to extend in the axial direction of the body 1, and the shaft portion 2 forms a flow dividing portion 21 on one side of the water inlet 12 of the body 1. The shunting part 21 has a shunting function, and when water flows to the shunting part 21, the water flows can be scattered, so that the water flows can enter the rectifier more smoothly and uniformly.

In this embodiment, a plurality of sets of ribs 3 are uniformly arranged around the axis of the body 1, the ribs 3 are connected to the shaft 2 at one radial side of the body 1, and the other side is connected to the body 1, and a rectifying hole 101 is formed between adjacent ribs 3. In some embodiments, the beads 3 may be provided with 4, 5, 6, 7, 8 or 9 sets. In the present embodiment, the cross-sectional shape of the rectification hole 101 is substantially fan-shaped.

In some embodiments, the cross-sectional area of the end of the flow dividing portion 21 decreases in a direction away from the water inlet end 11 in the axial direction of the body 1. So that the end 211 of the flow dividing part 21 has a better flow dividing effect, and the water flow rushing to the flow dividing part 21 along the axial direction of the body 1 is ensured to smoothly pass through the end 211 of the flow dividing part 21.

In some embodiments, the end of the flow splitter 21 is hemispherical. So that the end 211 of the flow dividing part 21 has a better flow dividing effect, and the water flow rushing to the flow dividing part 21 along the axial direction of the body 1 is ensured to smoothly pass through the end 211 of the flow dividing part 21.

The flow dividing portion 21 of the present embodiment includes a stop surface 212, the stop surface 212 is connected to the rib portion 3, the stop surface 212 and the rib portion 3 are in smooth transition, and the stop surface 212 corresponds to the rib portion 3 and the flow-shaping hole 101, respectively. Further, the diameter of the cross section of the stop surface 212 increases in the axial direction of the body 1 away from the end 211. On the one hand, the water flowing through the end of the flow dividing portion 21 can be buffered at the stopping surface 212 to flow into the rectifying hole 101 more smoothly, and on the other hand, the water flowing along the end surface of the rib portion 3 and converging to the flow dividing portion 21 is scattered by the stopping surface 212 and enters the rectifying hole 101.

In this embodiment, the distance from the end surface of the rib portion 3 on one side of the water inlet end 11 to the water inlet end 11 gradually decreases in the direction toward the radial direction of the body 1, which is close to the shaft portion 2. Therefore, when the water flow is obstructed by the rib portion 3, the water flow can be more smoothly converged to the flow dividing portion 21.

This embodiment muscle portion 3 in the terminal surface of intaking one side of end 11 includes first curved surface 31 and second curved surface 32, first curved surface 31 with second curved surface 32 smooth connection, first curved surface 31 is outer convex (at the radial direction of body 1, first curved surface 31 is outer convex), second curved surface 32 is interior concavity (at the radial direction of body 1, second curved surface 32 is interior concavity), second curved surface 32 with backstop face 212 is connected. Wherein, first curved surface 31 mainly plays the effect of guide rivers, and second curved surface 32 then plays the effect that hinders rivers, reduces the velocity of flow to better play the rectification effect, and the aforesaid setting of first curved surface 31 and second curved surface 32 can reduce the wearing and tearing that rivers impact and bring.

In some embodiments, the lowest point of the end surface of the rib portion 3 on one side of the water inlet end 11 is 2-5mm away from the end surface of the water inlet end 11. In some embodiments, the lowest point of the end surface of the rib portion 3 on one side of the water inlet end 11 is 2-4mm away from the end surface of the water inlet end 11. In some embodiments, the distance between the lowest point of the end surface of the rib portion 3 on one side of the water inlet end 11 and the end surface of the water inlet end 11 is 3 ± 0.5 mm. The radian of the first curved surface 31 and the second curved surface 32 is determined by ensuring that the end surface of the rib part 3 has enough space.

The first curved surface 31 and the second curved surface 32 in this embodiment are curved in the width direction of the rib 3. To further reduce the impact of the water flow.

In the present embodiment, the second curved surface 32 and the stop surface 212 are in arc transition at the junction and are tangent to each other. To provide a smooth transition between the second curved surface 32 and the stop surface 212.

In this embodiment, the second curved surface 32 is tangent to the end surface of the water inlet end 11. So that the water flow smoothly transits between the end surface of the water inlet end 11 and the second curved surface 32.

In this embodiment, on a cross section of the rectifier, the axis of the body 1 is perpendicular to the cross section, and the ratio of the cross-sectional area of the rectifying hole 101 on the cross section to the total area of the cross section of the body 1 is 0.3-0.6. Therefore, the rectifier has enough cross section area for strength design, the structural strength of the rectifier is ensured, the passing area of the rectifying hole 101 is ensured, and the problem of pressure loss is avoided.

The ratio of the outer diameter of the shaft part 2 to the outer diameter of the body 1 in the embodiment of the utility model is 20-30%.

The above description of the present invention is intended to be illustrative. Various modifications, additions and substitutions for the specific embodiments described may be made by those skilled in the art without departing from the scope of the utility model as defined in the accompanying claims.

Claims

1. A rectifier, comprising:

2. The rectifier of claim 1, wherein: in the direction of keeping away from the water inlet end in the axial direction of the body, the cross-sectional area of the end part of the flow dividing part is decreased progressively.

3. The rectifier according to claim 1 or 2, wherein: the end of the shunt part is hemispherical.

4. The rectifier of claim 1, wherein: the reposition of redundant personnel portion includes the backstop face, the backstop face with rib portion is connected, just the backstop face with rib portion smooth transition, the backstop face respectively with rib portion reaches the flow hole corresponds.

5. The rectifier of claim 4, wherein: the rib part is located the terminal surface of one side of the end of intaking extremely the distance of the end of intaking is in the past the radial direction of body is close to the direction of axial region reduces gradually.

6. The rectifier of claim 5, wherein: the rib portion in the terminal surface of one side of the end of intaking includes first curved surface and second curved surface, first curved surface with second curved surface smooth connection, first curved surface is outer convex, the second curved surface is concave, the second curved surface with the backstop face is connected.

7. The rectifier of claim 6, wherein: the second curved surface and the joint of the stop surface are in arc transition and tangent.

8. The rectifier of claim 6, wherein: the second curved surface is tangent to the end surface of the water inlet end.

9. The rectifier of claim 1, wherein: on a cross section of the rectifier, the axis of the body is perpendicular to the cross section, and the ratio of the cross-sectional area of the rectifying hole on the cross section to the total area of the cross section of the body is 0.3-0.6.

10. The rectifier according to claim 1 or 9, wherein: the ratio of the outer diameter of the shaft part to the outer diameter of the body is 20-30%.