CN214424773U

CN214424773U - Volute with uniform pressure distribution

Info

Publication number: CN214424773U
Application number: CN202120052165.9U
Authority: CN
Inventors: 刘振起
Original assignee: Suzhou City Jiekaili Industrial Equipment Co ltd
Current assignee: Suzhou City Jiekaili Industrial Equipment Co ltd
Priority date: 2021-01-09
Filing date: 2021-01-09
Publication date: 2021-10-19
Anticipated expiration: 2031-01-09

Abstract

The utility model discloses an even spiral case of pressure distribution, including the spiral case, the raindrop type is personally submitted to the up end and the lower extreme of spiral case, is provided with in the spiral case to be used for collecting the compression liquid, guide liquid flow direction and further diffusion's volute, and the volute runs through spiral case both sides terminal surface, and the embedding of volute has vortex channel, and vortex channel is the logarithm helix setting, is provided with the delivery port on the radial direction of volute, and the delivery port is linked together with vortex channel. The utility model relates to an even spiral case of pressure distribution adopts the vortex passageway of the sunken design of axial, can improve the speed that rivers flow in vortex passageway, guarantees that pressure distribution is even, improves the life of spiral case, and the pressure that produces when the delivery port of loudspeaker form can reduce to go out water keeps the pressure stability in the spiral case, improves the work efficiency of spiral case.

Description

Volute with uniform pressure distribution

Technical Field

The utility model belongs to the technical field of the spiral case, especially, relate to an even spiral case of pressure distribution.

Background

The volute is used for collecting liquid flowing out of the impeller outlet and sending the liquid into the pressure water pipeline or the next-stage impeller inlet, the flowing speed of the liquid from the impeller is high, and in order to reduce the hydraulic loss of the pressure water pipeline, the flowing speed of the liquid needs to be reduced before the liquid is sent into the pressure water pipeline; the volute is a spiral pressurized-water single volute chamber, and a large radial force exists under the traditional design, so that fluid continuously impacts the inner wall of the volute chamber, irregular depression occurs in a flow channel in the volute chamber, the pressure distribution in the volute chamber is influenced, the function of the volute is unstable, and the pressurizing or pressure reducing capacity is lost. There is therefore a need for a solution to the above problems.

The above description is included in the technical recognition scope of the inventors, and does not necessarily constitute the prior art.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problem, the utility model aims to provide an inside vortex passageway reasonable in design of spiral case guarantees the even spiral case of pressure distribution of spiral case function stability.

For realizing above-mentioned purpose, the utility model provides a spiral case that pressure distribution is even, a serial communication port, including the spiral case, the raindrop type is personally submitted to the up end and the lower extreme of spiral case, be provided with the spiral case that is used for collecting compressed liquid, guide liquid flow direction and further diffusion in the spiral case, the spiral case runs through spiral case both sides terminal surface, the gomphosis has the vortex passageway in the spiral case, the vortex passageway is the setting of logarithmic spiral, be provided with the delivery port on the radial direction of spiral case, the delivery port with the vortex passageway is linked together.

In one example, the vortex channel bottom is recessed towards the volute outer side wall, and the vertical section of the vortex channel is U-shaped.

In one example, the water outlet extends from the vortex passage to the outer side wall of the volute, and the diameter of the water outlet gradually increases in the process of extending towards the outer side wall of the volute, so that the water outlet is horizontally arranged in a horn shape.

In one example, the lower end of the water outlet is connected with the vortex channel at an included angle of 10-12 degrees.

In one example, the first through hole of the volute chamber on one side of the volute casing is matched with an output shaft of a centrifugal pump motor.

In one example, the second through hole of the volute chamber on the other side of the volute casing is matched with the centrifugal pump impeller.

In one example, a mounting ring is sleeved on one end of the water outlet, which is far away from the vortex channel.

In one example, a separation tongue is arranged between the water outlet and the vortex channel, and the angle of the separation tongue is 23.5 degrees.

Through the utility model provides an even spiral case of pressure distribution can bring following beneficial effect: the vortex channel adopting the axial sunken design can improve the flowing speed of water flow in the vortex channel, ensure uniform pressure distribution and prolong the service life of the volute, and the trumpet-shaped water outlet can reduce the pressure generated when water flows out, so that the pressure in the volute is kept stable and the working efficiency of the volute is improved.

Drawings

The accompanying drawings, which are described herein, serve to provide a further understanding of the invention and constitute a part of this specification, and the exemplary embodiments and descriptions thereof are provided for explaining the invention without unduly limiting it. In the drawings:

fig. 1 is a top view of a volute with uniform pressure distribution according to the present invention;

fig. 2 is a bottom cross-sectional view of a volute with uniform pressure distribution according to the present invention;

fig. 3 is a front view of a volute with uniform pressure distribution according to the present invention;

fig. 4 is a front sectional view of a volute with uniform pressure distribution according to the present invention;

fig. 5 is a left side view of the volute with uniform pressure distribution according to the present invention.

Detailed Description

In order to more clearly explain the overall concept of the present invention, the following detailed description is given by way of example in conjunction with the accompanying drawings.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not 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 present 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 two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. In the description herein, references to the description of the terms "an aspect," "some aspects," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the aspect or example is included in at least one aspect or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same solution or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more aspects or examples.

As shown in fig. 1-5, the embodiment of the utility model provides a volute with even pressure distribution, it includes volute 1, volute 1's up end and lower extreme are the raindrop type, be provided with in volute 1 and be used for collecting the compressed liquid, guide the liquid flow direction and further expand volute 11, volute 11 runs through 1 both sides terminal surface of volute, the gomphosis has vortex passageway 111 in the volute 11, vortex passageway 111 is the setting of logarithmic spiral, be provided with delivery port 112 on volute 11's the radial direction, delivery port 112 is linked together with vortex passageway 111.

Specifically, the bottom of the vortex channel 111 is recessed toward the outer side wall of the volute 1, and the vertical section of the vortex channel 111 is U-shaped.

Specifically, the water outlet 112 extends from the vortex passage 111 to the outer side wall of the volute 1, and the diameter of the water outlet 112 gradually increases in the process of extending towards the outer side wall of the volute 1, so that the water outlet 112 is horizontally arranged in a trumpet shape.

Specifically, the connection angle between the lower end of the water outlet 112 and the vortex channel 111 is 10-12 degrees.

Specifically, the first through hole 113 of the volute chamber 11 on one side of the volute casing 1 is matched with the output shaft of the centrifugal pump motor.

Specifically, the second through hole 114 of the volute chamber 11 on the other side of the volute 1 is matched with the centrifugal pump impeller.

Specifically, the end of the water outlet 112 away from the vortex channel 111 is sleeved with a mounting ring 1121.

Specifically, a separation tongue 2 is arranged between the water outlet 112 and the vortex channel 111, and the angle of the separation tongue is 23.5 degrees

The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the system embodiment, since it is substantially similar to the method embodiment, the description is simple, and for the relevant points, reference may be made to the partial description of the method embodiment.

The above description is only an example of the present invention, and is not intended to limit the present invention. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

1. The volute with uniform pressure distribution is characterized by comprising a volute body, wherein the upper end face and the lower end face of the volute body are of a raindrop type, a volute chamber used for collecting compressed liquid and guiding the flow direction of the liquid and further expanding the pressure is arranged in the volute body, the volute chamber penetrates through the end faces of two sides of the volute body, a vortex channel is embedded in the volute chamber and is arranged in a logarithmic spiral manner, a water outlet is formed in the radial direction of the volute chamber, and the water outlet is communicated with the vortex channel.

2. The scroll casing with uniform pressure distribution according to claim 1, wherein the bottom of the vortex channel is recessed toward the outer sidewall of the scroll casing, and the vertical section of the vortex channel is U-shaped.

3. The spiral casing with uniform pressure distribution as recited in claim 1, wherein the outlet extends from the vortex passage to the outer sidewall of the spiral casing, and the diameter of the outlet gradually increases as the outlet extends toward the outer sidewall of the spiral casing, such that the outlet is horizontally disposed in a trumpet shape.

4. The spiral casing with uniform pressure distribution as recited in claim 3, wherein the lower end of the water outlet is connected to the vortex channel at an angle of 10-12 °.

5. The scroll casing with uniform pressure distribution of claim 1, wherein the first through hole of the scroll chamber on one side of the scroll casing is matched with the output shaft of the centrifugal pump motor.

6. The scroll casing with uniform pressure distribution of claim 1, wherein the second through hole of the scroll chamber on the other side of the scroll casing is adapted to the impeller of the centrifugal pump.

7. The spiral casing of claim 1 wherein the end of the water outlet remote from the vortex channel is fitted with a mounting ring.

8. The spiral casing with uniform pressure distribution according to claim 1, wherein a separation tongue is arranged between the water outlet and the vortex channel, and the separation tongue angle is 23.5 °.