CN111350700A

CN111350700A - Flow amplifying device

Info

Publication number: CN111350700A
Application number: CN202010297559.0A
Authority: CN
Inventors: 陈建元; 陈绳龙
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-04-16
Filing date: 2020-04-16
Publication date: 2020-06-30

Abstract

The invention provides a flow amplifying device, which comprises a flow amplifier and a double-screw high-speed compression pump, wherein a fluid inlet and a fluid outlet are respectively arranged at two axial ends of the flow amplifier, a fluid channel is formed between the fluid inlet and the fluid outlet, a through hole communicated with the fluid channel is formed in the flow amplifier, the double-screw high-speed compression pump comprises a pump shell, a female rotor, a male rotor and a motor for controlling the female rotor or the male rotor to rotate, a fluid compression cavity is arranged in the pump shell, the female rotor and the male rotor are mutually meshed and arranged in the fluid compression cavity, a fluid suction hole and a fluid discharge hole are formed at two ends of the fluid compression cavity, and the fluid discharge hole is communicated with the through hole. The invention adopts the female rotor and the male rotor which are meshed with each other to replace the traditional fan blades, can reduce the noise of the product, enables the pressure and the flow rate of the fluid to be higher, has more obvious flow multiplication effect, prolongs the service life of the product, has better user experience effect and has wide application field.

Description

Flow amplifying device

Technical Field

The invention relates to the technical field of fluid amplification equipment, in particular to a flow amplification device.

Background

The flow amplifier device utilizes the coanda effect principle of fluid mechanics, and can drive surrounding fluid by inputting a small amount of fluid (gas or liquid), and output a large amount of low-pressure fluid at one end at a high speed, so that the flow of the fluid can be multiplied. The product (like the bladeless fan) of traditional bladeless technique mainly adopts high-speed motor and cooperates the interval precision of flabellum and pipe wall to compress outside fluid to the pipeline in, such structure noise is high, and the flow multiplication effect is not obvious, and the flabellum produces deformation easily under high-speed motor's drive for a long time and makes the unable normal work of product, reduces the life of product, still can lead to fluidic compression volume to reduce, influences the amplification effect of flow.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides a flow amplifying device which can reduce the noise of a product, has more obvious flow multiplication effect and prolongs the service life of the product.

In order to achieve the purpose, the invention adopts the following technical scheme:

a flow amplifying device comprises a flow amplifier and a double-screw high-speed compression pump, wherein a fluid inlet and a fluid outlet are respectively arranged at two axial ends of the flow amplifier, a fluid channel is formed between the fluid inlet and the fluid outlet, a through hole communicated with the fluid channel is formed in the flow amplifier, the double-screw high-speed compression pump comprises a pump shell, a female rotor, a male rotor and a motor for controlling the female rotor or the male rotor to rotate, a fluid compression cavity is arranged in the pump shell, the female rotor and the male rotor are mutually meshed and arranged in the fluid compression cavity, a fluid suction hole and a fluid discharge hole are formed in two ends of the fluid compression cavity, and the fluid discharge hole is communicated with the through hole.

Preferably, the female rotor is a 6-lobe screw and the male rotor is a 5-lobe screw.

Preferably, the fluid suction hole and the fluid discharge hole are respectively located at both sides of the fluid compression chamber.

As a preferred scheme, the flow amplifier includes that the shell and the cover locate the inner shell in the shell, fluid inlet locates on the shell, fluid outlet locates on the inner shell, be formed with annular airtight space between the medial surface of outer shell and the lateral surface of inner shell, be formed with the clearance with annular airtight space intercommunication between the input of inner shell and the shell, the through-hole is with annular airtight space intercommunication, the inner wall of inner shell input is the fillet form.

As a preferred scheme, the outer wall surface of the inner shell is sleeved with a graphene heating coating.

As a preferred scheme, the outer shell is formed by high-temperature-resistant glass fiber engineering plastics, and the inner shell is formed by high-temperature-resistant ceramic materials.

Preferably, the inner wall surface of the inner casing is provided with a plurality of annularly distributed guide plates, and the guide plates extend along the axial direction of the inner casing.

As a preferred scheme, the double-screw high-speed compression pump further comprises a handle, the handle is of a hollow structure, one end of the handle is connected with the flow amplifier, an accommodating cavity for installing the double-screw high-speed compression pump is formed in one end, close to the flow amplifier, of the handle, the double-screw high-speed compression pump is installed in the accommodating cavity, a fluid input cavity is formed in one end, far away from the flow amplifier, of the accommodating cavity, and the fluid suction hole is communicated with the fluid input cavity.

Preferably, the handle is provided with a fluid input hole communicated with the fluid input cavity.

As a preferable scheme, a switch button is arranged on the handle.

Compared with the prior art, the invention has obvious advantages and beneficial effects, particularly,

1. by arranging the flow amplifier and the double-screw high-speed compression pump, a fluid inlet and a fluid outlet are respectively arranged at two axial ends of the flow amplifier, a fluid channel is formed between the fluid inlet and the fluid outlet, a through hole communicated with the fluid channel is arranged on the flow amplifier, the double-screw high-speed compression pump comprises a pump shell, a female rotor, a male rotor and a motor for controlling the female rotor or the male rotor to rotate, a fluid compression cavity is arranged in the pump shell, the female rotor and the male rotor are mutually meshed and arranged in the fluid compression cavity, a fluid suction hole and a fluid discharge hole are arranged at two ends of the fluid compression cavity, the fluid discharge hole is communicated with the through hole, the traditional fan blades are replaced by the female rotor and the male rotor which are mutually meshed, the noise of a product can be reduced, the;

2. the female rotor and the male rotor can bear higher operation load and work for a long time, and the deformation problem is avoided, so that the service life of a product is prolonged, the reduction of the compression amount of fluid is avoided, the amplification effect of flow is not influenced, and the device has wider application fields, such as application to powerful bladeless handheld fans, powerful bladeless handheld dust collectors, powerful handheld electric hair dryers, large-flow bladeless fans, bladeless model aeroplane propellers, bladeless vertical lifting airplanes, bladeless ship propellers and bladeless submarine propellers

3. Through setting up the guide plate, it is more smooth and easy when making fluid flow out from the fluid outlet, reduces fluid passage's turbulent phenomenon, further reduces the operating noise of product, and user experience effect is better.

To more clearly illustrate the structural features and technical means of the present invention and the specific objects and functions attained thereby, the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments:

drawings

FIG. 1 is a schematic view of an assembly structure of an embodiment of the present invention;

FIG. 2 is an exploded view of a flow amplifier according to an embodiment of the present invention;

FIG. 3 is a front view of an embodiment of the present invention;

FIG. 4 is a schematic cross-sectional view taken at A-A of FIG. 3;

FIG. 5 is an enlarged partial view of portion B of FIG. 4;

FIG. 6 is a cross-sectional view of a twin screw high speed compression pump of an embodiment of the present invention;

FIG. 7 is a schematic view of a twin screw high speed compression configuration of an embodiment of the present invention;

FIG. 8 is a schematic view of another perspective structure of a twin-screw high-speed compression pump according to an embodiment of the present invention.

The attached drawings indicate the following:

10-a flow amplifier; 11-an inner shell; 111-a baffle;

12-graphene heating coating; 13-a housing; 131-a through hole;

14-a fluid inlet; 15-a fluid outlet; 16-a fluid channel;

17-an annular closed space; 18-clearance; 20-twin screw high speed compression pump;

21-a pump housing; 22-female rotor; 23-male rotor;

24-a motor; 25-a fluid compression chamber; 26-a bearing;

27-a fluid suction hole; 28-fluid exhaust hole; 30-a handle;

31-an accommodating cavity; 32-a fluid input cavity; 33-a fluid input aperture;

34-switch button.

Detailed Description

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the positions or elements referred to must have specific orientations, be constructed and operated in specific orientations, and thus, are not to be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as appropriate by those of ordinary skill in the art.

As shown in fig. 1 to 8, a flow amplifying device comprises a flow amplifier 10, a twin-screw high-speed compression pump 20 and a handle 30, wherein a fluid inlet 14 and a fluid outlet 15 are respectively arranged at two axial ends of the flow amplifier 10, a fluid channel 16 is formed between the fluid inlet 14 and the fluid outlet 15, a through hole 131 communicated with the fluid channel 16 is arranged on the flow amplifier 10, the twin-screw high-speed compression pump 20 comprises a pump shell 21, a female rotor 22, a male rotor 23 and a motor 24 for controlling the rotation of the female rotor 22 or the male rotor 23, a fluid compression cavity 25 is arranged in the pump shell 21, the female rotor 22 and the male rotor 23 are mutually meshed and arranged in the fluid compression cavity 25, bearings 26 are connected at two ends of the female rotor 22 and the male rotor 23, the female rotor 22 is a 6-lobe screw, the male rotor 23 is a 5-lobe screw, a fluid suction hole 27 and a fluid discharge hole 28 are arranged at two ends of the fluid, the fluid suction hole 27 and the fluid discharge hole 28 are respectively located at two sides of the fluid compression cavity 25, the fluid discharge hole 28 is communicated with the through hole 131, the handle 30 is of a hollow structure, one end of the handle 30 is connected with the flow amplifier 10, an accommodating cavity 31 for installing the twin-screw high-speed compression pump 20 is arranged at one end of the handle 30 close to the flow amplifier 10, the twin-screw high-speed compression pump 20 is installed in the accommodating cavity 31, a fluid input cavity 32 is arranged at one end of the accommodating cavity 31 far away from the flow amplifier 10, the fluid suction hole 27 is communicated with the fluid input cavity 32, a fluid input hole 33 communicated with the fluid input cavity 32 is arranged on the handle 30, and a switch button 34 is arranged on the handle 30.

The flow amplifier 10 comprises an outer shell 13 and an inner shell 11 sleeved in the outer shell 13, a fluid inlet 14 is formed in the outer shell 13, a fluid outlet 15 is formed in the inner shell 11, an annular closed space 17 is formed between the outer side face of the inner shell 11 and the inner side face of the outer shell 13, a gap 18 communicated with the annular closed space 17 is formed between the input end of the inner shell 11 and the outer shell 13, a through hole 131 is communicated with the annular closed space 17, the inner wall of the input end of the inner shell 11 is in a fillet shape, the outer wall face of the inner shell 11 is sleeved with a graphene heating coating 12, the outer shell 13 is formed by high-temperature-resistant glass fiber engineering plastics, the inner shell 11 is formed by high-temperature-resistant ceramic materials, a plurality of guide plates 111 distributed annularly are arranged on the inner wall face of the inner shell 11.

In the invention, the motor 24 adopts a model airplane high-speed voltage-adjustable motor.

The above description is only for the preferred embodiment of the present invention and is not intended to limit the present invention, so that any modifications, equivalents, improvements, etc. made to the above embodiment according to the present invention are within the scope of the present invention.

Claims

1. A flow amplifying device is characterized by comprising a flow amplifier and a double-screw high-speed compression pump, wherein a fluid inlet and a fluid outlet are respectively arranged at two axial ends of the flow amplifier, a fluid channel is formed between the fluid inlet and the fluid outlet, a through hole communicated with the fluid channel is formed in the flow amplifier, the double-screw high-speed compression pump comprises a pump shell, a female rotor, a male rotor and a motor for controlling the female rotor or the male rotor to rotate, a fluid compression cavity is arranged in the pump shell, the female rotor and the male rotor are mutually meshed and arranged in the fluid compression cavity, a fluid suction hole and a fluid discharge hole are formed in two ends of the fluid compression cavity, and the fluid discharge hole is communicated with the through hole.

2. The flow amplifying device according to claim 1, wherein the female rotor is a 6-lobe screw and the male rotor is a 5-lobe screw.

3. The flow amplifying device according to claim 1, wherein the fluid suction hole and the fluid discharge hole are respectively located at both sides of the fluid compression chamber.

4. The flow amplifier according to claim 1, wherein the flow amplifier comprises an outer shell and an inner shell sleeved in the outer shell, the fluid inlet is disposed on the outer shell, the fluid outlet is disposed on the inner shell, an annular closed space is formed between an outer side surface of the inner shell and an inner side surface of the outer shell, a gap communicated with the annular closed space is formed between an input end of the inner shell and the outer shell, the through hole is communicated with the annular closed space, and an inner wall of the input end of the inner shell is in a round angle shape.

5. The flow amplifying device according to claim 4, wherein the outer wall surface of the inner shell is sleeved with a graphene heating coating.

6. The flow amplifying device according to claim 4, wherein the outer shell is formed of a high temperature resistant glass fiber engineering plastic, and the inner shell is formed of a high temperature resistant ceramic material.

7. The flow amplifying device according to claim 5, wherein the inner wall surface of the inner casing is provided with a plurality of annularly distributed flow deflectors extending in an axial direction of the inner casing.

8. The flow amplifying device according to claim 1, further comprising a handle, wherein the handle is of a hollow structure, one end of the handle is connected with the flow amplifier, an accommodating cavity for installing a twin-screw high-speed compression pump is arranged at one end of the handle close to the flow amplifier, the twin-screw high-speed compression pump is installed in the accommodating cavity, a fluid input cavity is arranged at one end of the accommodating cavity far away from the flow amplifier, and the fluid suction hole is communicated with the fluid input cavity.

9. The flow amplifying device according to claim 8, wherein the handle has a fluid inlet hole communicating with the fluid inlet chamber.

10. A flow amplifying device according to claim 8 or 9, wherein the handle is provided with a switch button.