CN210889478U

CN210889478U - Novel current collector

Info

Publication number: CN210889478U
Application number: CN201921636696.1U
Authority: CN
Inventors: 李钊; 赵鹏举; 陆银华; 彭邦建
Original assignee: Huzhou Ruichen Environmental Protection Technology Co ltd
Current assignee: Huzhou Ruichen Environmental Protection Technology Co ltd
Priority date: 2019-09-29
Filing date: 2019-09-29
Publication date: 2020-06-30
Anticipated expiration: 2029-09-29

Abstract

The utility model discloses a novel current collector aims at providing a novel current collector that ventilation efficiency is high. The flow collector comprises a flow collector body and an impeller, wherein the flow collector body is cylindrical, the flow collector body comprises an air inlet and an air outlet, the air inlet is located at one end of the flow collector body, the air outlet is located at the other end of the flow collector body, one end of the flow collector body, which is provided with the air outlet, is connected with an air inlet of the impeller, the radius of the flow collector body is gradually reduced from the air inlet to the air outlet, and a plurality of guide vanes which are uniformly distributed are arranged on the inner. The utility model has the advantages that: the energy loss is reduced; the efficiency of the ventilator is improved; the application range is wide.

Description

Novel current collector

Technical Field

The utility model belongs to the technical field of the relevant technique of fan and specifically relates to indicate a novel collector.

Background

The centrifugal fan is a machine which increases gas pressure and discharges gas by means of input mechanical energy, is a driven fluid machine, and is widely applied to the field of various electric mechanical equipment.

Centrifugal fan is generally divided into forward formula centrifugal fan, radial formula centrifugal fan and backward formula centrifugal fan, and present backward formula centrifugal fan all has the air inlet collector, and the collector mostly is arc taper pipe type collector, and this is the higher current collector model of current efficiency, but it can not carry out the rectification to gas and reach the purpose that reduces impeller power loss, and ventilation efficiency is low. Although the air inlet of the ventilator is mostly provided with the adjusting door, the main function of the ventilator is to control the flow and the convection effect is general.

SUMMERY OF THE UTILITY MODEL

The utility model relates to an overcome the problem that ventilation efficiency is low among the prior art, provide a novel collector that ventilation efficiency is high.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a novel collector, it includes collector body and impeller, the shape of collector body is the cylinder, the collector body include air inlet and gas outlet, the air inlet be located the one end of collector body, the gas outlet be located the other end of collector body, the collector body on be equipped with the one end of gas outlet and be connected with the air intake of impeller, the radius of collector body reduce from the air inlet to the gas outlet gradually, be equipped with a plurality of evenly distributed's guide vane on the inner wall of collector body.

The shape of collector body is the cylinder, and the collector body includes air inlet and gas outlet, and the air inlet is located the one end of collector body, and the gas outlet is located the other end of collector body, and the one end that is equipped with the gas outlet on the collector body is connected with the air intake of impeller, and the radius of collector body reduces from the air inlet to the gas outlet gradually, is equipped with a plurality of evenly distributed's guide vane on the inner wall of collector body. The guide vanes in the collector rectify the airflow at the air inlet, so that the energy loss caused by the impact of the air on the impeller vanes is reduced, and the aim of high ventilation efficiency is fulfilled.

Preferably, the impeller comprises a front disc, a rear disc and a plurality of blades, the outer diameters of the front disc and the rear disc are the same, the air inlet is located in the center of the front disc, one side of the front disc is detachably connected with the collector body through the air inlet, the other side of the front disc is fixedly connected with the rear disc through the plurality of blades, and the plurality of blades are uniformly distributed on the front disc along the edge of the air inlet. The current collector rectifies the airflow at the air inlet, and the airflow is sent into the impeller through the air outlet and finally sent out through the impeller; the collector body is detachably connected with the front disc, so that the collector is convenient to replace on the basis of not changing the original structure of the fan, and the application range is wide.

Preferably, one end of the vane is located at the edge of the air inlet, and the other end of the vane is located at the outer edge of the front disc. The design is favorable for the air flow at the air outlet of the rectifier to be more efficiently sent into the impeller through the blades and sent out through the impeller.

Preferably, one end of each guide vane is positioned at the air inlet, the other end of each guide vane is positioned at the air outlet, and the number of the guide vanes is the same as that of the vanes and corresponds to that of the vanes one by one. The design is favorable for the guide vanes in the rectifier to rectify the airflow more efficiently; the number of the guide vanes is the same as that of the vanes, and the guide vanes correspond to the vanes one by one, so that the abrasion at the air inlet of the impeller vanes is reduced.

Preferably, the guide vanes and the blades are both arc-shaped, and the tangential direction of one end of each guide vane positioned at the air outlet is the same as the tangential direction of one end of each guide vane positioned at the edge of the air inlet. When the gas passes through the flow collector, the gas is influenced by the guide vanes, flows along the guide vanes, has inertia, and continuously flows along the tangential direction of the gas outlet of the guide vanes, and the tangential direction of the gas outlet of the guide vanes is the same as the tangential direction of the air inlet of the impeller vanes, so that the energy loss generated by the gas impacting the impeller vanes is reduced, and the efficiency of the ventilator can be improved under the condition that the impellers do work equally.

The utility model has the advantages that: the tangential direction of one end of the guide vane positioned at the air outlet is the same as that of one end of the guide vane positioned at the edge of the air inlet, so that the energy loss generated by the impact of the gas on the impeller vane is reduced, and the efficiency of the ventilator is improved; the collector body is detachably connected with the front disc, so that the collector is convenient to replace on the basis of not changing the original structure of the fan, and the application range is wide.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a distribution diagram of guide vanes;

fig. 3 is a left side view of the present invention;

FIG. 4 is a diagram of the raw current collector structure and the flow state of the gas flow;

fig. 5 is a state diagram of the flow of air to the fan blade.

In the figure: 1. the device comprises a collector body, an impeller 2, a guide vane 3, a front disc 4, a rear disc 5 and a vane 6.

Detailed Description

The invention is further described with reference to the accompanying drawings and the detailed description.

In the embodiment shown in fig. 1 and 2, the novel current collector comprises a current collector body 1 and an impeller 2, wherein the current collector body 1 is cylindrical, the current collector body 1 comprises an air inlet and an air outlet, the air inlet is located at one end of the current collector body 1, the air outlet is located at the other end of the current collector body 1, one end of the current collector body 1, which is provided with the air outlet, is connected with an air inlet of the impeller 2, the radius of the current collector body 1 is gradually reduced from the air inlet to the air outlet, and a plurality of guide vanes 3 which are uniformly distributed are arranged on the inner wall of the current.

As shown in fig. 1 and 2, the impeller 2 includes a front disk 4, a rear disk 5 and a plurality of blades 6, the outer diameters of the front disk 4 and the rear disk 5 are the same, the air inlet is located at the center of the front disk 4, one side of the front disk 4 is detachably connected with the current collector body 1 through the air inlet, the other side of the front disk 4 is fixedly connected with the rear disk 5 through the plurality of blades 6, and the plurality of blades 6 are uniformly distributed on the front disk 4 along the edge of the air inlet. One end of the vane 6 is positioned at the edge of the air inlet, and the other end of the vane 6 is positioned at the outer edge of the front disc 4.

As shown in fig. 1, one end of the guide vane 3 is located at the air inlet, the other end of the guide vane 3 is located at the air outlet, and the number of the guide vanes 3 is the same as that of the vanes 6 and corresponds to one another.

As shown in fig. 3, the guide vanes 3 and the blades 6 are both arc-shaped, and the tangential direction of the end of the guide vane 3 located at the air outlet is the same as the tangential direction of the end of the blade 6 located at the edge of the air inlet.

The working principle is as follows: as shown in fig. 4 and 5, the primary collector cannot guide the air flow, and the air flow may impact the impeller blades 6 and cause energy loss, and the loss is large.

The scheme is mainly applied to the ventilator. When the impeller 2 rotates, the impeller 2 drives the gas to rotate together to generate centrifugal force, and the centrifugal force throws the gas out to generate pressure difference, so that the gas at the air inlet of the ventilator is driven to flow towards the impeller 2.

As shown in fig. 3, when the gas passes through the collector, the gas is influenced by the guide vane 3, flows along the guide vane 3 and has inertia, and continues to flow along the tangential direction of the outlet of the guide vane 3, and the tangential direction is the same as the tangential direction of the inlet of the impeller 6, so that the energy loss caused by the gas impacting the impeller 6 is reduced. Therefore, the efficiency of the ventilator can be improved under the condition that the impeller does work equally.

Claims

1. The utility model provides a novel collector, characterized by, includes collector body (1) and impeller (2), the shape of collector body (1) is the cylinder, collector body (1) include air inlet and gas outlet, the air inlet be located the one end of collector body (1), the gas outlet be located the other end of collector body (1), collector body (1) on be equipped with the one end of gas outlet and be connected with the air intake of impeller (2), the radius of collector body (1) reduce from the air inlet to the gas outlet gradually, be equipped with a plurality of evenly distributed's guide vane (3) on the inner wall of collector body (1).

2. The novel current collector of claim 1, wherein the impeller (2) comprises a front disc (4), a rear disc (5) and a plurality of blades (6), the outer diameters of the front disc (4) and the rear disc (5) are the same, the air inlet is located at the center of the front disc (4), one side of the front disc (4) is detachably connected with the current collector body (1) through the air inlet, the other side of the front disc (4) is fixedly connected with the rear disc (5) through the plurality of blades (6), and the plurality of blades (6) are uniformly distributed on the front disc (4) along the edge of the air inlet.

3. A new header as claimed in claim 2, characterised in that one end of said blades (6) is located at the inlet edge and the other end of said blades (6) is located at the outer edge of the front disc (4).

4. A new header as claimed in claim 3, characterized in that one end of said guide vanes (3) is located at the inlet and the other end of said guide vanes (3) is located at the outlet, the number of said guide vanes (3) being the same as the number of said vanes (6) and corresponding to one another.

5. A new type of collector as claimed in claim 4, characterized in that said guide vanes (3) and said blades (6) are both arc-shaped, and the tangential direction of the end of said guide vanes (3) at the outlet is the same as the tangential direction of the end of said blades (6) at the inlet edge.