CN212250601U

CN212250601U - Novel hydraulic model

Info

Publication number: CN212250601U
Application number: CN202021894297.8U
Authority: CN
Inventors: 林发明; 黄河; 陈云军; 孙云江
Original assignee: China Dafu Pump Industry Co ltd
Current assignee: China Dafu Pump Industry Co ltd
Priority date: 2020-09-02
Filing date: 2020-09-02
Publication date: 2020-12-29
Anticipated expiration: 2030-09-02

Abstract

The utility model provides a novel hydraulic model belongs to the pump field. It has solved current centrifugal pump inner structure imperfection, and rivers flow velocity is unbalanced to make the problem of efficiency reduction. This novel hydraulic model, a serial communication port, including the pump head main part, the pump head main part in be provided with the pump body die cavity of constituteing by intake chamber, drainage chamber and collecting chamber, pump body die cavity in be provided with the impeller, pump body die cavity central part seted up into the water round hole, the water round hole of intaking communicate with the intake chamber each other, the impeller include impeller main part and a plurality of blade, impeller main part middle part seted up central shaft hole, impeller main part by including front shroud and back shroud, the center that front shroud and back shroud enclose be equipped with the intake antrum, the blade sets up between front shroud and back shroud, and evenly sets up around the circumference in central shaft hole, the inside center of back shroud have past bellied boss around central shaft hole.

Description

Novel hydraulic model

Technical Field

The utility model belongs to the pump field, in particular to novel hydraulic model.

Background

The centrifugal pump works by utilizing the rotation of an impeller to enable water to generate centrifugal motion, before the water pump is started, a pump shell and a water suction pipe are filled with water, then a motor is started, a pump shaft drives the impeller and the water to generate high-speed rotation motion, the water generates centrifugal motion and is thrown to the outer edge of the impeller and flows into a water pressing pipeline of the water pump through a flow channel of a volute-shaped pump shell, but the existing centrifugal pump is imperfect in internal structure and unbalanced in water flow speed, and therefore the efficiency is reduced.

Disclosure of Invention

The utility model aims at providing a novel hydraulic model with high efficiency and strong hydraulic characteristic aiming at the problems in the prior art.

The purpose of the utility model can be realized by the following technical proposal: a novel hydraulic model is characterized by comprising a pump head main body, wherein a pump body cavity consisting of a water inlet chamber, a water discharge chamber and a water collection chamber is arranged in the pump head main body, the water inlet chamber, the water discharge chamber and the water collection chamber are communicated with each other, an impeller is arranged at the position corresponding to the water discharge chamber in the pump body cavity, a water inlet round hole is arranged at the center of the pump body cavity and communicated with the water inlet chamber, the impeller comprises an impeller main body and a plurality of blades arranged in the impeller main body, the middle part of the impeller main body is provided with a central shaft hole, the impeller body comprises a front cover plate and a rear cover plate which are parallel to each other, a water inlet cavity is arranged in the center surrounded by the front cover plate and the rear cover plate, the blades are arranged between the front cover plate and the rear cover plate, and the inner center of the rear cover plate is provided with a boss protruding outwards around the central shaft hole.

In the novel hydraulic model, each blade is curved, and the curvature rate is gradually increased from outside to inside.

In the above novel hydraulic model, the pump head main body has an outwardly convex buffer portion at a position corresponding to the water inlet chamber on the inner wall.

Compared with the prior art, this novel hydraulic model establishes neotype water drainage chamber and header, makes the water drainage chamber overflow more smoothly, and it is little along week loss, through rebuilding the blade shape, changes entry and export lay angle moreover, reduces the interior spiral form extrusion of impeller runner, improves outlet pressure, improves the hydraulic characteristic of pump effectively, has increased substantially the efficiency of pump.

Drawings

FIG. 1 is a perspective view of a pump head body;

FIG. 2 is a cross-sectional view of the pump head body;

FIG. 3 is a perspective view of the impeller;

fig. 4 is a sectional view of the impeller.

In the figure, 1, a pump head main body; 2. a water inlet chamber; 3. a drain chamber; 4. a water collection chamber; 5. a pump body cavity; 6. a water inlet circular hole; 7. an impeller body; 8. a blade; 9. a central shaft hole; 10. a front cover plate; 11. a rear cover plate; 12. a water inlet cavity; 13. a buffer section; 14. and (4) a boss.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1, 2, 3 and 4, the novel hydraulic model is characterized by comprising a pump head main body 1, a pump body cavity 5 consisting of a water inlet chamber 2, a water discharge chamber 3 and a water collection chamber 4 is arranged in the pump head main body 1, the water inlet chamber 2, the water discharge chamber 3 and the water collection chamber 4 are communicated with each other, an impeller is arranged at the position corresponding to the water discharge chamber 3 in the pump body cavity 5, a water inlet round hole 6 is arranged at the central part of the pump body cavity 5, the water inlet round hole 6 is communicated with the water inlet chamber 3, the impeller comprises an impeller main body 7 and a plurality of blades 8 arranged in the impeller main body 7, a central shaft hole 9 is arranged at the middle part of the impeller main body 7, the impeller main body 7 comprises a front cover plate 10 and a rear cover plate 11 which are parallel to each other, a water inlet cavity 12 is arranged at the center surrounded by the front cover plate 10 and the rear cover plate 11, the blades 8, the inside center of back shroud 11 has toward outer bellied boss 14 around central shaft hole 9, and each blade 8 is curved, and from outer to interior curvature rate increase gradually, and the position department that corresponds intake chamber 2 on the pump head main part 1 inner wall has outside bellied buffer 13, makes drainage chamber 3 flow over current more smoothly through buffer 13, and loss along week is little.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although the terms are used more often herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.

Claims

1. The novel hydraulic model is characterized by comprising a pump head main body (1), wherein a pump body cavity (5) consisting of a water inlet chamber (2), a water suction chamber and a water collection chamber (4) is arranged in the pump head main body (1), the water inlet chamber (2), the water suction chamber and the water collection chamber (4) are communicated with each other, an impeller is arranged at the position corresponding to the water suction chamber in the pump body cavity (5), a water inlet round hole (6) is formed in the central part of the pump body cavity (5), the water inlet round hole (6) is communicated with the water inlet chamber (2), the impeller comprises an impeller main body (7) and a plurality of blades (8) arranged in the impeller main body (7), a central shaft hole (9) is formed in the middle part of the impeller main body (7), and the impeller main body (7) comprises a front cover plate (10) and a rear cover plate (11) which are parallel to each other, the novel fan blade is characterized in that a water inlet cavity (12) is formed in the center defined by the front cover plate (10) and the rear cover plate (11), the blades (8) are arranged between the front cover plate (10) and the rear cover plate (11) and evenly arranged around the circumference of the central shaft hole (9), and a boss (14) protruding outwards is arranged in the center of the inner portion of the rear cover plate (11) around the central shaft hole (9).

2. A new hydraulic model, according to claim 1, characterized in that each of said blades (8) is curved and has a curvature that increases from the outside to the inside.

3. A novel hydraulic model as claimed in claim 1, wherein the pump head body (1) has an outwardly convex bumper (13) on the inner wall thereof at a position corresponding to the inlet chamber (2).