阅读说明：本技术 一种自排气微型轴流增压泵 (Self-exhaust miniature axial flow booster pump ) 是由 林伟伟 赵孔胜 于 2019-12-31 设计创作，主要内容包括：本发明属于水泵技术领域,公开了一种自排气微型轴流增压泵,包括外壳、设置在外壳内的泵组件,所述泵组件包括中间壳、进水壳与出水壳,所述进水壳与中间壳之间形成了叶轮室,出水壳与中间壳之间形成了出水集水腔,所述中间壳内设有分别独立的定子腔与转子腔,所述定子腔内设有定子,且在定子腔内灌胶；所述转子腔内设有转子组件,所述转子腔向下贯通叶轮室,向上贯通出水集水腔。本发明增加了排气结构,解决了现有的气体将转子腔内的水挤出导致的转子组件烧毁的问题,从而提高了整体的使用性能,使得安装变得简便。(The invention belongs to the technical field of water pumps, and discloses a self-exhaust micro axial flow booster pump which comprises a shell and a pump assembly arranged in the shell, wherein the pump assembly comprises a middle shell, a water inlet shell and a water outlet shell, an impeller chamber is formed between the water inlet shell and the middle shell, a water outlet water collecting cavity is formed between the water outlet shell and the middle shell, a stator cavity and a rotor cavity which are respectively independent are arranged in the middle shell, a stator is arranged in the stator cavity, and glue is filled in the stator cavity; the rotor cavity is internally provided with a rotor component, and the rotor cavity penetrates through the impeller chamber downwards and penetrates through the water outlet and collecting cavity upwards. The invention adds the exhaust structure and solves the problem that the rotor component is burnt down due to the extrusion of water in the rotor cavity by the existing gas, thereby improving the integral use performance and simplifying the installation.)

1. A self-exhaust micro axial flow booster pump comprises a shell and a pump assembly arranged in the shell, wherein the pump assembly comprises a middle shell, a water inlet shell and a water outlet shell, an impeller chamber is formed between the water inlet shell and the middle shell, a water outlet water collecting cavity is formed between the water outlet shell and the middle shell, a stator cavity and a rotor cavity which are independent respectively are arranged in the middle shell, a stator is arranged in the stator cavity, and glue is filled in the stator cavity; the rotor intracavity is equipped with rotor subassembly, its characterized in that: the rotor cavity penetrates through the impeller chamber downwards and penetrates through the water outlet and water collecting cavity upwards.

2. The self-exhausting micro axial-flow booster pump according to claim 1, wherein: the rotor cavity is communicated with the water outlet and water collecting cavity through a conical pipe.

3. The self-exhaust micro axial flow booster pump according to claim 1 or 2, wherein: the stator cavity faces the water outlet and collecting cavity, a cover body is arranged on the stator cavity, the cover body wraps the conical pipe, and a plurality of vent holes are formed in the cover body; the height of the glue filling in the stator cavity is lower than that of the free end of the conical pipe.

4. The self-exhaust micro axial flow booster pump according to claim 1 or 2, wherein: the rotor assembly comprises a fixed shaft, a rotating sleeve, an impeller frame and a rotor, wherein the rotating sleeve is made of graphite and is internally fixed in the rotor, the fixed shaft is inserted in the rotating sleeve in a matching mode, so that the rotor can rotate relative to the fixed shaft, the rotor is fixed on the impeller frame, the impeller is arranged on the impeller frame, and the impeller is located in an impeller chamber.

5. The self-exhausting micro axial-flow booster pump according to claim 4, wherein: two ends of the fixed shaft are flat shafts, and ceramic gaskets are sleeved on the flat shafts.

6. The self-exhausting micro axial-flow booster pump according to claim 3, wherein: the outer peripheral face of the cover body is sleeved with a sealing ring, and the sealing ring is attached to and sealed on the inner wall of the stator cavity.

7. The self-exhausting micro axial-flow booster pump according to claim 3, wherein: and a circuit control device is also arranged in a space enclosed by the cover body and the stator cavity, and a circuit of the circuit control device is wrapped by a sealing sleeve.

8. The self-exhausting micro axial-flow booster pump according to claim 4, wherein: and a flow guide rib is arranged in the rotor cavity.

Technical Field

The invention belongs to the technical field of water pumps, and particularly relates to a self-exhaust micro axial flow booster pump.

Background

The booster pump is a device for conveying liquid, the existing booster pump has the defects of poor appearance, compact structure and inconvenient movement in actual use, and the existing booster pump with the compact structure has poor integral sealing performance.

The applicant previously filed a patent application number 2019203002492, which comprises a shell, wherein the shell is of a straight-tube structure, a pump assembly is arranged in the shell, the pump assembly comprises a middle shell, a water inlet shell and a water outlet shell, and a water inlet and an impeller chamber are arranged in the water inlet shell; a stator cavity and a rotor cavity which are independent respectively are arranged in the middle shell, a stator is arranged in the stator cavity, and glue is filled in the stator cavity; the rotor cavity is internally provided with a rotor which is connected with an impeller, the impeller is positioned in an impeller chamber of the water inlet shell, and the impeller and the rotor are of an integrated structure. The miniature axial compressor booster pump of above-mentioned structure, the rotor chamber communicates with each other with the impeller chamber, be full of water in the rotor chamber, water has the lubrication action between to rotor and the rotor shaft, and make the rotor become smooth and easy when rotatory, reduce the temperature between rotor and the rotor shaft, thereby make the work that the rotor can be normal, in the in-service use process, the rotor, the stator can produce the heat at the during operation, thereby make water generate heat, form gas in the rotor chamber, if miniature axial compressor booster pump is to erect and place, and when the shell of intaking is in the bottom, then gaseous gathering in the rotor chamber, then make the water of rotor intracavity discharge the rotor chamber, this has made and has lost emollient between rotor and the rotor shaft, lead to the rotor, generate heat when the rotor shaft is relative rotation, wearing and tearing are serious, then lead to the life of miniature axial compressor pump to. Therefore, the micro axial flow booster pump with the structure has strict requirements on the placement in the direction when in use, so that the installation requirement is high, the installation cost and the later maintenance cost are high, and the requirement of a user on convenient installation cannot be met; in addition, even though the miniature axial flow booster pump is installed by professionals and is accurate in installation position, in the long-time working process, hot gas is generated in the rotor cavity due to the fact that the exhaust speed is limited, the hot gas enables water in the rotor chamber to be further heated and vaporized, and therefore the water in the rotor cavity is reduced, the rotor and the rotor shaft are abraded, and the service life of the miniature axial flow booster pump is shortened.

Disclosure of Invention

The invention aims to solve the technical problem that the rotor assembly fails because water is extruded out of a rotor cavity by gas caused by the fact that the existing axial flow booster pump cannot be installed in place.

The technical scheme adopted by the invention for solving the technical problems is as follows:

the invention discloses a self-exhaust micro axial flow booster pump, which comprises a shell and a pump assembly arranged in the shell, wherein the pump assembly comprises a middle shell, a water inlet shell and a water outlet shell, an impeller chamber is formed between the water inlet shell and the middle shell, a water outlet water collecting cavity is formed between the water outlet shell and the middle shell, a stator cavity and a rotor cavity which are respectively independent are arranged in the middle shell, a stator is arranged in the stator cavity, and glue is filled in the stator cavity; the rotor cavity is internally provided with a rotor component, and the rotor cavity penetrates through the impeller chamber downwards and penetrates through the water outlet and collecting cavity upwards.

The rotor cavity is communicated with the water outlet and water collecting cavity through a conical pipe.

The stator cavity faces the water outlet and collecting cavity, a cover body is arranged on the stator cavity, the cover body wraps the conical pipe, and a plurality of vent holes are formed in the cover body; the height of the glue filling in the stator cavity is lower than that of the free end of the conical pipe.

The rotor assembly comprises a fixed shaft, a rotating sleeve, an impeller frame and a rotor, wherein the rotating sleeve is made of graphite and is internally fixed in the rotor, the fixed shaft is inserted in the rotating sleeve in a matching mode, so that the rotor can rotate relative to the fixed shaft, the rotor is fixed on the impeller frame, the impeller is arranged on the impeller frame, and the impeller is located in an impeller chamber.

Two ends of the fixed shaft are flat shafts, and ceramic gaskets are sleeved on the flat shafts.

The outer peripheral face of the cover body is sleeved with a sealing ring, and the sealing ring is attached to and sealed on the inner wall of the stator cavity.

And a circuit control device is also arranged in a space enclosed by the cover body and the stator cavity, and a circuit of the circuit control device is wrapped by a sealing sleeve.

And a flow guide rib is arranged in the rotor cavity.

The invention has the beneficial effects that:

compared with the prior art, the self-exhaust micro axial flow booster pump has the advantages that the lower part of the rotor cavity on the middle shell penetrates through the impeller chamber, the upper part of the rotor cavity penetrates through the water outlet and water collecting cavity, gas in the rotor cavity can be smoothly exhausted no matter how the booster pump is placed, the rotor cavity is always kept full of water, and conditions are provided for normal work of the rotor assembly.

Drawings

FIG. 1 is a quarter perspective view of a self-exhausting micro axial flow booster pump of the present invention;

FIG. 2 is a cross-sectional view of an intermediate casing of the self-exhausting micro axial-flow booster pump of the present invention;

FIG. 3 is a perspective view of an intermediate casing of the self-exhausting micro axial-flow booster pump of the present invention;

FIG. 4 is an exploded perspective view of an intermediate casing of the self-exhausting micro axial-flow booster pump of the present invention;

FIG. 5 is a perspective view of another perspective of the middle of the self-exhausting micro axial-flow booster pump of the present invention;

FIG. 6 is an exploded perspective view of the self-exhausting micro axial-flow booster pump of the present invention.

Detailed Description

The invention is described in further detail below with reference to the following figures and detailed description:

referring to fig. 1 to 6, the present invention provides a self-exhaust micro axial flow booster pump, including a housing 1, a pump assembly disposed in the housing 1, the pump assembly including a middle casing 2, a water inlet casing 3 and a water outlet casing 4, an impeller chamber 5 formed between the water inlet casing 3 and the middle casing 2, a water outlet water collecting chamber 6 formed between the water outlet casing 4 and the middle casing 2, a stator chamber 7 and a rotor chamber 8 respectively independent from each other disposed in the middle casing 2, a stator 9 disposed in the stator chamber 7, and a glue 22 filled in the stator chamber 7; and a rotor assembly 10 is arranged in the rotor cavity 8, the rotor cavity 8 penetrates through the impeller chamber 5 downwards, and penetrates through the water outlet and water collecting cavity 6 upwards.

The rotor cavity 8 is communicated with the water outlet and collecting cavity 6 through a conical pipe 11.

The stator cavity 7 faces the water outlet and collecting cavity 6, a cover body 12 is arranged on the stator cavity 7, the conical pipe 11 is wrapped in the cover body 12, and a plurality of vent holes 13 are formed in the cover body 12; the height of the glue filling in the stator cavity 7 is lower than that of the free end of the conical pipe 11.

The rotor assembly 10 includes a fixed shaft 14, a rotating sleeve 15, an impeller frame 16 and a rotor 17, wherein the rotating sleeve 15 is made of graphite and is internally fixed in the rotor 17, the fixed shaft 14 is fittingly inserted in the rotating sleeve 15, so that the rotor 17 can rotate relative to the fixed shaft 14, the rotor 17 is fixed on the impeller frame 16, the impeller frame 16 is provided with an impeller 18, and the impeller 18 is located in the impeller chamber 5.

Two ends of the fixed shaft 14 are flat shafts, and ceramic gaskets 23 are sleeved on the flat shafts.

The outer peripheral surface of the cover body 12 is sleeved with a sealing ring 24, and the sealing ring 24 is attached and sealed on the inner wall of the stator cavity 7.

A circuit control device is further arranged in a space enclosed by the cover body 12 and the stator cavity 7, and a sealing sleeve 25 is wrapped on a circuit of the circuit control device.

The sealing ring 24 and the sealing sleeve 25 can further improve the sealing property of the stator cavity 7 and the waterproof property of the circuit control device.

And a flow guide rib 19 is arranged in the rotor cavity 8.

The working principle of the self-exhaust micro axial-flow booster pump of the invention is explained as follows:

the whole working principle of the self-exhaust micro axial flow booster pump is consistent with that of a micro axial flow booster pump with the patent application number of 2019203002492 applied previously, and the difference points are as follows: the conical tube 11 and the cover body 12 are added. The stator 9 is arranged in the stator cavity 7, the circuit control device is arranged at the upper end of the stator 9, the cover body 12 covers the opening position of the stator cavity 7, the conical pipe 11 is covered in the stator cavity, and then glue 22 is poured into the stator cavity 7, wherein the height of the glue 22 is equal to or less than the height of the air outlet 20 of the conical pipe 11. The cover body 12 is provided with a plurality of vent holes 13, so that gas in the rotor cavity 8 is conveniently discharged to the effluent water collecting cavity 6 through the conical pipe 11, the cover body 12 and the vent holes 13, and the cover body 12 also serves as a supporting piece and provides mounting support for the flow switch 21 in the effluent shell 4. The bigger bore of the conical pipe 11 is butted with the rotor cavity 8, the smaller bore is an exhaust port 20, which is beneficial to better exhaust of gas, and a flow guiding rib 19 is arranged in the rotor cavity 8, and the flow guiding rib 19 enables water in the rotor cavity 8 to smoothly flow to the conical pipe 11 in a vortex mode, and finally rushes to the water outlet water collecting cavity 6 through the pressurization of the conical pipe 11.

The self-exhaust axial micro-flow booster pump provided by the embodiment of the invention is described in detail, and the principle and the implementation mode of the invention are explained by applying specific examples, and the description of the above embodiment is only used for helping to understand the technical scheme disclosed by the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation of the present invention.