CN209115401U

CN209115401U - A kind of novel inlet box guiding device

Info

Publication number: CN209115401U
Application number: CN201821639881.1U
Authority: CN
Inventors: 张有权; 杜立东
Original assignee: Hebei Zhongbang Energy Conservation Technology Service Co Ltd
Current assignee: Hebei Zhongbang Energy Conservation Technology Service Co Ltd
Priority date: 2018-10-10
Filing date: 2018-10-10
Publication date: 2019-07-16
Anticipated expiration: 2028-10-10

Abstract

A kind of novel inlet box guiding device, it is related to inlet box deflector technical field.It includes shell, the first deflector and the second deflector, the shell is made of upper cover plate, oblique cover plate, camber side plate, foreboard, back plate, bottom plate, the left end of the upper cover plate is connected with oblique cover plate, bottom plate is provided with immediately below upper cover plate, the rear and front end of upper cover plate and bottom plate is vertically installed with front and rear panels, the left end of the foreboard is connected with the front end of camber side plate, and the rear end of camber side plate is connected with the left end of back plate, upper and the second deflector of the camber side plate.The utility model has the beneficial effect that it can be to avoid fluid through vortex when corner on the corner, it ensure that the direction of fluid inlet and outlet flow velocity and improve the flow velocity of fluid, so that distribution of exit velocities is more uniform, flow field is more stable, reduces the noise of centrifugal blower.

Description

A kind of novel inlet box guiding device

Technical field

The utility model relates to inlet box deflector technical fields, and in particular to a kind of novel inlet box guiding device.

Background technique

Centrifugal blower is a kind of turbomachine for converting the mechanical energy of gas to potential energy and pressure energy, and inlet box is centrifugation A kind of inlet duct of fan inlet connection, inlet box are a kind of radial admission devices, and inlet box outlet is connected with collector, are By fluid radial inflow, a kind of guiding device for axially flowing out.

Inlet box is a kind of device simply welded by steel plate, and structural shape is relatively simple, however inlet box Influence to centrifugal blower performance is bigger, not only reduces the efficiency of centrifugal blower, and can also noise be increased, with Attention of the country to energy-saving and emission-reduction and environmental pollution, inlet box are optimized to for a target to be solved at present.

Utility model content

The purpose of this utility model is that it is in view of the drawbacks of the prior art and insufficient, a kind of novel inlet box water conservancy diversion is provided Device, this device can ensure that the direction of fluid inlet and outlet flow velocity simultaneously to avoid fluid through vortex when corner on the corner The flow velocity of fluid is improved, so that distribution of exit velocities is more uniform, flow field is more stable, reduces making an uproar for centrifugal blower Sound.

To achieve the above object, the present invention is using following technical scheme: it includes shell 1, the first deflector 2 and second Deflector 3, the shell 1 is made of upper cover plate 11, oblique cover plate 12, camber side plate 13, foreboard 14, back plate 15, bottom plate 16, described The left end of upper cover plate 11 is connected with oblique cover plate 12, and the underface of upper cover plate 11 is provided with bottom plate 16, upper cover plate 11 and bottom plate 16 Rear and front end is vertically installed with foreboard 14 and back plate 15, and the left end of the foreboard 14 is connected with the front end of camber side plate 13, arc The rear end of type side plate 13 is connected with the left end of back plate 15, upper and the second deflector 3 of the camber side plate 13, the upper cover The right side of plate 11 and foreboard 14, back plate 15 and bottom plate 16 forms rectangle entrance 4, and the left part of the bottom plate 16 is provided with circle and goes out Mouth 5.

First deflector 2 and the second deflector 3 are sheet, and first deflector 2 and the second deflector 3 are uniformly Corner inside distribution housing 1.

First deflector 2 includes first entrance straightway 21 and first outlet arc section 22, first entrance straightway 21 and first outlet arc section 22 it is tangent, the first deflector 2 is close to bottom plate 16；Second deflector 3 includes that second entrance is straight Line segment 31 and second outlet arc section 32, second entrance straightway 31 and second outlet arc section 32 are tangent, the second deflector 3 Close to upper cover plate 11.

First deflector 2 with a thickness of 2mm, first entrance straightway 21 is 50mm, first outlet arc section 22 half Diameter is 70mm, and the angle between first outlet arc section 22 and bottom plate 16 is 90 °.

Second deflector 3 with a thickness of 2mm, second entrance straightway 31 is 98.6mm, second outlet arc section 32 Radius is 140mm, and the angle between second outlet arc section 32 and bottom plate 16 is 90 °.

First deflector 2 is equal with the width of the width of the second deflector 3 and bottom plate 16, first deflector 2 are connected with round exit 5 with side before and after the lower end of the second deflector 3.

The distance between the first entrance straightway 21 and bottom plate 16 are equal to the one third of 4 height of rectangle entrance, institute State the one third that the distance between second entrance straightway 31 and bottom plate 16 are equal to 4 height of rectangle entrance.

The height of the camber side plate 13 is equal to the half of 4 height of rectangle entrance.

First deflector 2 and the second deflector 3 and camber side plate 13, foreboard 14, back plate 15 pass through welded connecting.

After adopting the above technical scheme, the utility model have the beneficial effect that it can to avoid fluid through when corner in corner The vortex at place ensure that the direction of fluid inlet and outlet flow velocity and improve the flow velocity of fluid, so that distribution of exit velocities is more Uniformly, flow field is more stable, reduces the noise of centrifugal blower.

Detailed description of the invention

In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only It is some embodiments of the utility model, for those of ordinary skill in the art, before not making the creative labor property It puts, is also possible to obtain other drawings based on these drawings.

Fig. 1 is the structural schematic diagram of the utility model；

Fig. 2 is the sectional view of corresponding diagram 1；

Fig. 3 is the bottom view of corresponding diagram 1；

Fig. 4 is the structural schematic diagram of the utility model deflector；

Description of symbols: shell 1, upper cover plate 11, oblique cover plate 12, camber side plate 13, foreboard 14, back plate 15, bottom plate 16, First deflector 2, the second deflector 3, first entrance straightway 21, first outlet arc section 22, second entrance straightway 31, Two outlet arc sections 32, rectangle entrance 4, round exit 5.

Specific embodiment

Referring to shown in Fig. 1-Fig. 4, present embodiment the technical solution adopted is that: it includes shell 1, the first deflector 2 and second deflector 3, the shell 1 is by upper cover plate 11, oblique cover plate 12, camber side plate 13, foreboard 14, back plate 15,16 groups of bottom plate At the left end of the upper cover plate 11 is connected with oblique cover plate 12, and the underface of upper cover plate 11 is provided with bottom plate 16,11 He of upper cover plate The rear and front end of bottom plate 16 is vertically installed with foreboard 14 and back plate 15, the left end of the foreboard 14 and the front end phase of camber side plate 13 Connection, the rear end of camber side plate 13 are connected with the left end of back plate 15, upper and the second deflector 3 of the camber side plate 13, institute The right side for stating upper cover plate 11 and foreboard 14, back plate 15 and bottom plate 16 forms rectangle entrance 4, the left part setting of the bottom plate 16 There is round exit 5.

First deflector 2 and the second deflector 3 are sheet, and first deflector 2 and the second deflector 3 are uniformly Corner inside distribution housing 1.Due to the presence of deflector, the flow velocity that fluid flows through corner is improved, so that outlet speed Degree is distributed more uniform, and flow field is more stable, reduces the noise of centrifugal blower.

First deflector 2 includes first entrance straightway 21 and first outlet arc section 22, first entrance straightway 21 and first outlet arc section 22 it is tangent, the first deflector 2 is close to bottom plate 16；Second deflector 3 includes that second entrance is straight Line segment 31 and second outlet arc section 32, second entrance straightway 31 and second outlet arc section 32 are tangent, and the second deflector 3 leans on Nearly upper cover plate 11.Due to the presence of deflector, the flow velocity that fluid flows through corner is improved, so that distribution of exit velocities is more Uniformly, flow field is more stable, reduces the noise of centrifugal blower.Using straightway entrance, circular arc type outlet, inlet and outlet difference water It is flat and vertical, it can guarantee the direction of fluid inlet and outlet flow velocity.

Working principle of the utility model is: avoiding fluid using inclination corner through vortex when corner on the corner, adopting With straightway entrance, circular arc type outlet, inlet and outlet are respectively the horizontal and vertical direction that can guarantee fluid inlet and outlet flow velocity, are led The presence of flowing plate improves flow velocity of the fluid through corner, so that distribution of exit velocities is more uniform, flow field is more stable, weakens The noise of centrifugal blower.

The above is only used to illustrate the technical scheme of the present invention and not to limit it, and those of ordinary skill in the art are to this hair The other modifications or equivalent replacement that bright technical solution is made, as long as it does not depart from the spirit and scope of the technical scheme of the present invention, It is intended to be within the scope of the claims of the invention.

Claims

1. a kind of novel inlet box guiding device, it is characterised in that: it leads comprising shell (1), the first deflector (2) and second Flowing plate (3), the shell (1) is by upper cover plate (11), oblique cover plate (12), camber side plate (13), foreboard (14), back plate (15), bottom Plate (16) composition, the left end of the upper cover plate (11) are connected with oblique cover plate (12), and upper cover plate is provided with bottom plate immediately below (11) (16), the rear and front end of upper cover plate (11) and bottom plate (16) is vertically installed with foreboard (14) and back plate (15), the foreboard (14) Left end be connected with the front end of camber side plate (13), the rear end of camber side plate (13) is connected with the left end of back plate (15), institute State upper and the second deflector (3) of camber side plate (13), the upper cover plate (11) and foreboard (14), back plate (15) and bottom plate (16) Right side form rectangle entrance (4), the left part of the bottom plate (16) is provided with round exit (5).

2. the novel inlet box guiding device of one kind according to claim 1, it is characterised in that: first deflector It (2) is sheet with the second deflector (3), first deflector (2) and the second deflector (3) are uniformly distributed in shell (1) The corner in portion.

3. the novel inlet box guiding device of one kind according to claim 1, it is characterised in that: first deflector It (2) include first entrance straightway (21) and first outlet arc section (22), first entrance straightway (21) and first outlet are round Segmental arc (22) is tangent, and the first deflector (2) is close to bottom plate (16)；Second deflector (3) includes second entrance straightway (31) and second outlet arc section (32), second entrance straightway (31) and second outlet arc section (32) are tangent, the second water conservancy diversion Plate (3) is close to upper cover plate (11).

4. the novel inlet box guiding device of one kind according to claim 3, it is characterised in that: first deflector (2) with a thickness of 2mm, first entrance straightway (21) is 50mm, and first outlet arc section (22) radius is 70mm, first outlet Angle between arc section (22) and bottom plate (16) is 90 °.

5. the novel inlet box guiding device of one kind according to claim 3, it is characterised in that: second deflector (3) with a thickness of 2mm, second entrance straightway (31) is 98.6mm, and second outlet arc section (32) radius is 140mm, second Exporting the angle between arc section (32) and bottom plate (16) is 90 °.

6. the novel inlet box guiding device of one kind according to claim 1, it is characterised in that: first deflector (2) the first deflector (2) and the second deflector equal with the width of the width of the second deflector (3) and bottom plate (16), described (3) side is connected with round exit (5) before and after lower end.

7. the novel inlet box guiding device of one kind according to claim 3, it is characterised in that: the first entrance straight line Section the distance between (21) and bottom plate (16) are equal to the one third of rectangle entrance (4) height, the second entrance straightway (31) it is equal to the one third of rectangle entrance (4) height with the distance between bottom plate (16).

8. the novel inlet box guiding device of one kind according to claim 1, it is characterised in that: the camber side plate (13) Height be equal to rectangle entrance (4) height half.

9. the novel inlet box guiding device of one kind according to claim 1, it is characterised in that: first deflector (2) and the second deflector (3) and camber side plate (13), foreboard (14), back plate (15) pass through welded connecting.