CN216951011U - High-pressure centrifugal draught fan - Google Patents

Abstract

The utility model discloses a high-pressure centrifugal draught fan, and relates to the technical field of draught fans. The utility model provides a high pressure centrifugation draught fan, includes first casing, second casing, impeller and pivot, a plurality of slots have been seted up to second casing one side, and first casing is fixed with a plurality of cuttings towards second casing side, and cuttings and slot looks adaptation are fixed mutually through connecting device between first casing and the second casing, and the wind gap outside of first casing one side is fixed with the rose box, and a plurality of second rectangular channels have been seted up to the rose box, and it has filter and carbon plate to peg graft respectively in the second rectangular channel. The fan is provided with the slot, the inserting strip, the filter plate and the carbon plate, the connecting joint of the first shell and the second shell can be prevented from being waterproof through the mutual matching of the slot and the inserting strip, and the carbon plate arranged on the outer side of the air port adsorbs water vapor in the outside air, so that the water vapor is prevented from entering the fan from the connecting joint and the air port, and the waterproof effect is improved.

Description

High-pressure centrifugal draught fan

Technical Field

The utility model relates to the technical field of induced draft fans, in particular to a high-pressure centrifugal induced draft fan.

Background

The centrifugal draught fan is a driven fluid machine which relies on input mechanical energy to increase gas pressure and discharge gas. Centrifugal induced draft fans are widely used for ventilation, dust exhaust and cooling of factories, mines, tunnels, cooling towers, vehicles, ships and buildings; ventilation and draught of boilers and industrial furnaces; cooling and ventilation in air conditioning equipment and household appliances; drying and selecting grains; wind tunnel wind source and air cushion boat inflation and propulsion.

Most high-pressure draught fan casing is two lamella formula structures among the prior art, splices the installation through bolts etc. and this kind of connected mode is consuming time and is hard up, and the installation is comparatively loaded down with trivial details to special place needs the high-pressure draught fan to draw forth the wind that does not contain steam a bit, but current fan water-proof effects is relatively poor, leads to the practicality relatively poor, for this reason, has proposed a high pressure centrifugation draught fan and has solved above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a high-pressure centrifugal draught fan to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a high pressure centrifugation draught fan, includes first casing, second casing, impeller and pivot, a plurality of slots have been seted up to second casing one side, and first casing is fixed with a plurality of cuttings towards second casing side, and cuttings and slot looks adaptation are fixed mutually through connecting device between first casing and the second casing, and the wind gap outside of first casing one side is fixed with the rose box, and a plurality of second rectangular channels have been seted up to the rose box, and it has filter and carbon plate to peg graft respectively in the second rectangular channel.

Preferably, the connecting device is provided with a plurality of connecting devices which are uniformly distributed at the outer sides of the first shell and the second shell.

Preferably, the connecting device comprises an inserting plate fixed on the first shell and a fixing plate fixed on the second shell, the tops of the inserting plate and the fixing plate are provided with through holes communicated with each other, one side of the inserting plate is provided with a first rectangular groove, an elastic sheet is placed in the first rectangular groove, the top end of the elastic sheet is integrally formed with a plug, and the plug is inserted into the through holes.

Preferably, the top ends of the filter plate and the carbon plate are both fixed with a connecting plate, and the top end of the connecting plate is fixed with a pull ring.

Preferably, a third rectangular groove is formed in the top of the second rectangular groove and is matched with the connecting plate, a plurality of first magnets are fixed to the bottom of the third rectangular groove, a plurality of second magnets are fixed to the bottom end of the connecting plate, the first magnets and the second magnets are consistent in number, and the first magnets and the second magnets are opposite magnets.

Compared with the prior art, the utility model has the beneficial effects that:

this high pressure centrifugation draught fan is provided with slot, cutting, filter and carbon plate, can carry out waterproofly to the joint line of first casing and second casing through mutually supporting of slot and cutting, and the carbon plate that sets up in the wind gap outside adsorbs the steam in the outside air to avoided steam to enter into the fan from joint line and wind gap in, improved water-proof effects, improved the practicality.

And still be provided with connecting device, first casing and second casing are assembled through connecting device fast to the installation has been simplified, labour saving and time saving.

Drawings

FIG. 1 is a left side axial view of the present invention;

FIG. 2 is an exploded top view of the present invention;

FIG. 3 is an exploded bottom view of the present invention;

fig. 4 is a cross-sectional view of the connection device.

In the figure: 101. a first housing; 102. a second housing; 103. a tuyere; 104. a slot; 105. cutting; 2. a connecting device; 201. inserting plates; 202. a fixing plate; 203. an elastic sheet; 204. a through hole; 205. a plug; 301. an impeller; 302. a rotating shaft; 4. a filter box; 401. a second rectangular groove; 402. a first magnet; 501. a filter plate; 601. a carbon plate; 602. a connecting plate; 603. a pull ring; 604. a second magnet.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that in the description of the present invention, the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience of description and simplification of description, and do not indicate or imply that the referred device or element must have a specific orientation, be configured in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

Further, it will be appreciated that the dimensions of the various elements shown in the figures are not drawn to scale, for ease of description, and that the thickness or width of some layers may be exaggerated relative to other layers, for example.

It should be noted that like reference numerals and letters refer to like items in the following figures, and thus, once an item is defined or illustrated in one figure, it will not need to be further discussed or illustrated in detail in the description of the following figure.

Example one

As shown in fig. 1-3, the present invention provides a technical solution: a high-pressure centrifugal draught fan comprises a first shell 101, a second shell 102, an impeller 301 and a rotating shaft 302, wherein one end of the rotating shaft 302 is connected with a power transmission device, the rotating shaft 302 drives the impeller 301 to rotate when rotating, so that the draught fan of the high-pressure centrifugal draught fan can be realized, the first shell 101 and the second shell 102 are made of cast iron, and anti-corrosion paint is sprayed on the surfaces of the first shell 101 and the second shell 102, so that the service life of the device is prolonged, a plurality of slots 104 are arranged on one side of the second shell 102, a plurality of inserting strips 105 are fixed on the side, facing the second shell 102, of the first shell 101, the inserting strips 105 are matched with the slots 104, in the embodiment, the number of the slots 104 and the inserting strips 105 is 2, it is required to know that the inserting strips 105 are rubber strips and have certain elasticity, further, the cross sections of the slots 104 and the inserting strips 105 are both semicircular, and the diameter of the inserting strips 105 is slightly larger than that of the slots 104, the first casing 101 and the second casing 102 are fixed with each other through the connection device 2, the connection device 2 has a plurality of connection devices 2, the specific number of the connection devices 2 is determined by the size of the induced draft fan, which is not limited in this embodiment, the connection devices 2 are uniformly distributed on the outer sides of the first casing 101 and the second casing 102, the filter box 4 is fixed on the outer side of the air opening 103 on one side of the first casing 101, the box body of the filter box 4 is provided with a plurality of second rectangular grooves 401, the number of the second rectangular grooves 401 is 2, the filter plate 501 and the carbon plate 601 are respectively inserted into the second rectangular grooves 401, the top ends of the filter plate 501 and the carbon plate 601 are both fixed with the connection plate 602, the top end of the connection plate 602 is fixed with the pull ring 603, the pull ring 603 is arranged to conveniently take the filter plate 501 and the carbon plate 601, it should be understood that the filter plate 501 is used to filter the outside air, and prevent large impurities in the air from entering the fan, the carbon plate 601 is arranged to adsorb water vapor in the outside air, so that the air entering the fan is free of water vapor.

In order to ensure the smooth implementation of the solution, it should be noted that the connection device 2 includes an insertion plate 201 fixed on the shell of the first housing 101 and a fixing plate 202 fixed on the shell of the second housing 102, a through hole 204 is formed at the top of the insertion plate 201 and the fixing plate 202, a first rectangular groove is formed at one side of the insertion plate 201, an elastic sheet 203 is placed in the first rectangular groove, a plug 205 is integrally formed at the top end of the elastic sheet 203, the top of the plug 205 is hemispherical, and the plug 205 is inserted into the through hole 204.

Specifically, the first housing 101 is held, the inserting plate 201 is inserted into the fixing plate 202, then the pressing is performed, the plug 205 moves downward, the elastic piece 203 contracts, when the plug 205 is located at the bottom of the through hole 204, the elastic piece 203 expands, and the plug 205 moves upward and is inserted into the through hole 204, so that the quick installation of the first housing 101 and the second housing 102 is realized.

Example two

As shown in fig. 1, 2 and 3, a high-pressure centrifugal induced draft fan comprises a first shell 101, a second shell 102, an impeller 301 and a rotating shaft 302, wherein a plurality of slots 104 are formed in one side of the second shell 102, a plurality of inserting strips 105 are fixed on the side, facing the second shell 102, of the first shell 101, the inserting strips 105 are matched with the slots 104, the first shell 101 and the second shell 102 are fixed through a connecting device 2, the connecting device 2 is provided with a plurality of connecting devices, the inserting strips are uniformly distributed on the outer sides of the first shell 101 and the second shell 102, a filter box 4 is fixed on the outer side of an air port 103 on one side of the first shell 101, a plurality of second rectangular grooves 401 are formed in a box body of the filter box 4, a filter plate 501 and a carbon plate 601 are respectively inserted in the second rectangular grooves 401, connecting plates 602 are fixed on the top ends of the filter plate 501 and the carbon plate 601, and pull rings 603 are fixed on the top ends of the connecting plates 602.

In order to optimize the scheme, in this embodiment, a third rectangular groove is formed in the top of the second rectangular groove 401, the third rectangular groove is matched with the connecting plate 602, a plurality of first magnets 402 are fixed to the bottom of the third rectangular groove, a plurality of second magnets 604 are fixed to the bottom end of the connecting plate 602, the number of the first magnets 402 and the number of the second magnets 604 are not limited in this embodiment, it should be known that the number of the first magnets 402 is the same as that of the second magnets 604, and the first magnets 402 and the second magnets 604 are opposite magnets, the device is arranged to realize rapid installation and disassembly between the filter plate 501 and the carbon plate 601 and the filter box 4, so that the filter plate 501 and the carbon plate 601 are maintained at the later stage.

Of course, a more preferred embodiment three can be obtained by combining the embodiment one and the embodiment two with each other.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. The utility model provides a high pressure centrifugal draught fan, includes first casing (101), second casing (102), impeller (301) and pivot (302), its characterized in that: a plurality of slots (104) have been seted up to second casing (102) one side, first casing (101) are fixed with a plurality of cuttings (105) towards second casing (102) side, cuttings (105) and slot (104) looks adaptation, it is fixed mutually through connecting device (2) between first casing (101) and the second casing (102), wind gap (103) the outside of first casing (101) one side is fixed with rose box (4), a plurality of second rectangular channel (401) have been seted up to rose box (4) box, it has filter (501) and carbon plate (601) to peg graft respectively in second rectangular channel (401).

2. The high-pressure centrifugal draught fan according to claim 1, wherein: the connecting devices (2) are distributed on the outer sides of the first shell (101) and the second shell (102).

3. The high-pressure centrifugal draught fan according to claim 1, wherein: the connecting device (2) comprises a plug board (201) fixed on a first shell (101) and a fixing board (202) fixed on a second shell (102), wherein the top parts of the plug board (201) and the fixing board (202) are provided with through holes (204) communicated with each other, one side of the plug board (201) is provided with a first rectangular groove, an elastic sheet (203) is placed in the first rectangular groove, the top end of the elastic sheet (203) is integrally formed with a plug (205), and the plug (205) is inserted into the through holes (204).

4. The high-pressure centrifugal draught fan according to claim 1, wherein: and the top ends of the filter plate (501) and the carbon plate (601) are respectively fixed with a connecting plate (602), and the top end of the connecting plate (602) is fixed with a pull ring (603).

5. The high-pressure centrifugal draught fan according to claim 1, wherein: the third rectangular channel has been seted up at second rectangular channel (401) top, and third rectangular channel and connecting plate (602) looks adaptation, and third rectangular channel bottom is fixed with a plurality of first magnet (402), and connecting plate (602) bottom mounting has a plurality of second magnet (604), and first magnet (402) are unanimous with the quantity of second magnet (604), and first magnet (402) and second magnet (604) are opposite sex magnet.

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