CN211397977U

CN211397977U - Marine fixed explosion-proof fan

Info

Publication number: CN211397977U
Application number: CN201921849499.8U
Authority: CN
Inventors: 沈余良
Original assignee: Shanghai De Hui Specific Fan Co ltd
Current assignee: Shanghai De Hui Specific Fan Co ltd
Priority date: 2019-10-30
Filing date: 2019-10-30
Publication date: 2020-09-01
Anticipated expiration: 2029-10-30

Abstract

The utility model relates to a marine fixed explosion-proof fan, including casing, explosion proof machine, impeller, connecting piece and filter equipment, the casing includes air inlet end and air-out end, the explosion proof machine passes through the connecting piece is fixed inside the casing, the explosion proof machine transmission is connected with the impeller, casing inner wall and explosion proof machine surface scribble the explosion-proof layer, air inlet end department is provided with filter equipment, filter equipment includes first filter mechanism and second filter mechanism, first filter mechanism is located one side of second filter mechanism towards air inlet end, first filter mechanism includes first support and first filter, the relative first support slope of first filter sets up, the second filter mechanism includes second support and second filter, the relative second support slope of second filter sets up, be provided with one between two adjacent first filters the second filter. Effectively promote filtration efficiency, prevent further that the dust from getting into the casing inside, striking impeller initiation spark and causing the potential safety hazard.

Description

Marine fixed explosion-proof fan

Technical Field

The utility model relates to a fan technical field especially relates to a marine fixed explosion-proof fan.

Background

Indoor air can contain flammable and explosive gases such as gas, gasoline, ethanol and benzene with certain concentration, and electric contact and mechanical friction release sparks to cause combustion or explosion, so that a fan can be arranged for suction to enable the indoor air to be circulated, but when the fan works, the fan is driven by electric energy, and therefore the flammable and explosive gases are easily ignited under the conditions of sparks and the like.

In order to solve the technical problems, the conventional fan adopts explosion-proof treatment, for example, patent No. 201510625554.5, the patent name is patent of an invention of an explosion-proof fan, the invention discloses that an explosion-proof motor is arranged in the middle of a motor support, explosion-proof machine shells are arranged at two ends of the motor support, guide plates are arranged on the inner sides of the explosion-proof machine shells at two ends of the motor support, fan blades are arranged at the output end of the explosion-proof motor, a filter screen is arranged on one side of each fan blade, the measuring end of the filter screen is fixed on the inner side of the explosion-proof machine shell, the filter screen is additionally arranged on the explosion-.

However, the above technical problems have the following drawbacks:

dust with the size smaller than the filter mesh holes can be sucked and collides with the fan blades to cause sparks, so that potential safety hazards exist.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a marine fixed explosion-proof fan, including casing, explosion-proof machine, impeller, connecting piece and filter equipment, the casing includes air inlet end and air outlet end, the explosion-proof machine passes through the connecting piece to be fixed in the casing, the explosion-proof machine transmission is connected with the impeller, the impeller is located the explosion-proof machine is towards the side of air outlet end, the casing inner wall and the explosion-proof machine surface scribble the explosion-proof layer, air inlet end department is provided with the filter equipment, the filter equipment includes first filter mechanism and second filter mechanism, first filter mechanism is located the second filter mechanism is towards the side of air inlet end, first filter mechanism includes first support and first filter plate, the quantity of first filter plate is a plurality of, arrange along the length direction of first support, the first filter is relative first support slope sets up, the second filter includes second support and second filter, the quantity of second filter is a plurality of, along the length direction of second support is arranged and is set up, the second filter is relative the slope of second support sets up, wherein, adjacent two be provided with one between the first filter the second filter.

Optionally, the impeller includes a blade and a rotating shaft, and rubber is disposed on the opposite side of the blade connected to the rotating shaft.

Optionally, the connecting piece comprises at least two supporting rods, and two ends of each supporting rod are respectively connected with the explosion-proof motor and the machine shell.

Optionally, a plurality of said struts are arranged along said circumferential array of housings.

Optionally, the explosion-proof layer is a polytetrafluoroethylene layer.

Optionally, the air inlet end is provided with a square mounting hole, the number of the first supports is two, the first supports are respectively arranged on the left side and the right side of the mounting hole, the first filter is square, and the two sides of the first filter are respectively connected with the first supports.

Optionally, the first filter plate includes a first outer layer, a second outer layer, and an inner layer, the inner layer being plural in number, and the lamination is disposed between the first outer layer and the second outer layer.

Optionally, the first outer layer, the second outer layer and the inner layer are made of metal materials, the first outer layer, the second outer layer and the inner layer are respectively provided with a vent hole, and the area of the vent hole on the first outer layer and the second outer layer is larger than that of the vent hole on the inner layer.

Optionally, the vent holes in the first and second outer layers are circular and the vent holes in the inner layer are square.

Optionally, a bracket is further included, the bracket being disposed outside the housing.

The embodiment of the utility model provides a technical scheme can include following beneficial effect:

the embodiment of the utility model provides a marine fixed explosion-proof fan is provided with a second filter between two adjacent first filters, effectively promotes filtration efficiency, and inside further preventing the dust from getting into the casing, striking impeller initiation spark and cause the potential safety hazard. In addition, the explosion-proof layer is coated on the inner wall of the machine shell and the surface of the explosion-proof motor, so that the explosion-proof efficiency is further improved.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention as claimed.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.

Fig. 1 is a schematic view of an internal structure of a fixed explosion-proof fan for a ship according to an embodiment of the present invention;

FIG. 2 is a right side view of a marine fixed explosion vent shown in FIG. 1;

FIG. 3 is a left side view of a marine fixed explosion protection blower shown in FIG. 1;

fig. 4 is a schematic structural diagram of a first filter plate of a marine fixed explosion-proof fan shown in a bitmap 1.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the invention, as detailed in the appended claims.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by those of ordinary skill in the art to which the invention belongs. The use of the terms "a" or "an" and the like in the description and in the claims does not denote a limitation of quantity, but rather denote the presence of at least one. The word "comprising" or "comprises", and the like, means that the element or item listed as preceding "comprising" or "includes" covers the element or item listed as following "comprising" or "includes" and its equivalents, and does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. As used in the specification and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

Fig. 1 is the embodiment of the utility model provides an internal structure schematic diagram of marine fixed explosion-proof fan. As shown in fig. 1, a marine fixed explosion-proof fan comprises a casing 10, an explosion-proof motor 20, an impeller 30, a connecting piece 40 and a filtering device 50, wherein the casing 10 comprises an air inlet end 11 and an air outlet end 12, the explosion-proof motor 20 is fixed inside the casing 10 through the connecting piece 40, the explosion-proof motor 20 is in transmission connection with the impeller 30, the impeller 30 is positioned on one side of the explosion-proof motor 20 facing the air outlet end 12, the inner wall of the casing 10 and the surface of the explosion-proof motor 20 are coated with an explosion-proof layer, the filtering device 50 is arranged at the air inlet end 11 and comprises a first filtering mechanism 51 and a second filtering mechanism 52, the first filtering mechanism 51 is positioned on one side of the second filtering mechanism 52 facing the air inlet end 11, the first filtering mechanism 51 comprises a first support 511 and a first filtering plate 512, the number of the first filtering plates 512 is multiple, the first filtering plates are arranged along the length direction of the first, the second filter mechanism 52 includes a plurality of second supports 521 and second filter plates 522, the second filter plates 522 are arranged in a row along the length direction of the second supports 521, the second filter plates 522 are arranged in an inclined manner with respect to the second supports 521, and one second filter plate 522 is disposed between two adjacent first filter plates 512.

After the explosion-proof motor 20 drives the impeller 30 to rotate, the outside air is filtered by the first filter 512 and the second filter 522 in proper order to be provided with a second filter 522 between two adjacent first filters 512, effectively promote filtration efficiency, further prevent that the dust from getting into inside the casing 10, striking impeller initiation spark and causing the potential safety hazard. In addition, the inner wall of the casing 10 and the surface of the explosion-proof motor 20 are coated with explosion-proof layers, so that the explosion-proof efficiency is further improved.

As shown in fig. 1, the impeller 30 includes a plurality of blades 31 and a rotating shaft 32, and the plurality of blades 31 are circumferentially arranged along an axis of the rotating shaft 32. The rotating shaft 32 is connected with an output shaft of the explosion-proof motor 20, so that the explosion-proof motor 20 drives the impeller 30 to rotate, so as to compress the gas introduced into the interior of the casing 10 and discharge the gas from the air outlet end 12.

In one embodiment, the housing 10 is cylindrical.

In other embodiments, the housing 10 is square or triangular, etc.

When the explosion-proof motor 20 is installed inside the casing 10, the output shaft of the explosion-proof motor 20 is coaxially arranged with the cylindrical casing 10, and the rotating shaft 32 is also coaxially arranged with the cylindrical casing 10, so that the work efficiency of the induced air of the impeller 30 is effectively improved.

Fig. 2 is a right side view of a marine fixed explosion vent shown in fig. 1. As shown in fig. 2, rubber 33 is disposed on the opposite side of the blade 31 to the rotating shaft 32 to prevent the blade 31 from contacting the casing 10 to generate sparks when the blade 31 rotates inside the casing 10.

As shown in fig. 1, the connecting member 40 includes at least two supporting rods, and two ends of the supporting rods are respectively connected with the explosion-proof motor 20 and the housing 10. In this way, gas can pass between two adjacent struts. In one example, the plurality of struts are arranged in a circumferential array along the axis of the housing 10.

The explosion-proof layer is a polytetrafluoroethylene layer. The teflon has the advantages of heat resistance, corrosion resistance, wear resistance and the like, so that the generation of sparks caused by dust impacting the explosion-proof motor 20, the machine shell 10 and the like is effectively prevented. In one example, the explosion-proof layer is disposed on the explosion-proof motor 20 and the housing 10 by means of spraying or bonding. Further, the surface of the support rod, the impeller 30 and the like is also provided with an explosion-proof layer.

Fig. 3 is a left side view of a check valve of a marine fixed explosion-proof fan shown in fig. 1. As shown in fig. 3, the air inlet end 11 is closed, and the air inlet end 11 is provided with a mounting hole 13, and the mounting hole 13 is square. In one embodiment, the number of the first supports 511 is two and is respectively disposed at left and right sides of the mounting hole 13, the first filter plate 512 is square, and both sides of the first filter plate 512 are respectively connected to the first supports 511. Note that the plurality of filter plates 512 cover the entire mounting hole 13. So that a good filtering effect can be achieved.

In one embodiment, the housing 10 is circular and the mounting hole 13 is square.

In another embodiment, the enclosure 10 and the mounting hole 13 are both directional.

As shown in fig. 1, one side of the first filter plates 512 is positioned at the left side of the first support 511, and the other side is positioned at the right side of the first support 511. One side of the second filter plate 522 is positioned at the left side of the second support 521 and the other side is positioned at the right side of the second support 521.

Fig. 4 is a schematic structural diagram of a first filter plate of a marine fixed explosion-proof fan shown in a bitmap 1. As shown in fig. 4, the first filter plate 512 includes a first outer layer 5121, a second outer layer 5123, and an inner layer 5122, the number of the inner layers 5122 is plural, and the lamination is disposed between the first outer layer 5121 and the second outer layer 5123. The first outer layer 5121, the second outer layer 5123 and the inner layer 5122 are all made of metal materials, the first outer layer 5121, the second outer layer 5123 and the inner layer 5122 are respectively provided with a vent hole, and the area of the vent hole in the first outer layer 5121 and the area of the vent hole in the second outer layer 5123 are larger than that of the vent hole in the inner layer 5122.

In one embodiment, the vent holes in the first outer layer 5121 and the second outer layer 5123 are circular and the vent holes in the inner layer 5122 are square.

In another embodiment, the vent holes in the first outer layer 5121 and the second outer layer 5123 are square and the vent holes in the inner layer 5122 are circular.

The second filter plate 522 may have the same structure as the first filter plate 512.

As shown in fig. 2, the fixed anti-explosion fan for the ship further comprises a bracket 60, and the bracket 60 is arranged outside the casing 10 and is used for fixing the fan.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. The invention is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A marine fixed explosion-proof fan is characterized by comprising a casing, an explosion-proof motor, an impeller, a connecting piece and a filtering device, wherein the casing comprises an air inlet end and an air outlet end, the explosion-proof motor is fixed inside the casing through the connecting piece, the impeller is connected with the explosion-proof motor in a transmission way, the impeller is positioned on one side of the explosion-proof motor, which faces the air outlet end, an explosion-proof layer is coated on the inner wall of the casing and the surface of the explosion-proof motor, the filtering device is arranged at the air inlet end and comprises a first filtering mechanism and a second filtering mechanism, the first filtering mechanism is positioned on one side of the second filtering mechanism, which faces the air inlet end, the first filtering mechanism comprises a first support and a first filtering plate, the number of the first filtering plates is multiple, and the first filtering plates are arranged along the length direction of the first support, the first filter is relative first support slope sets up, the second filter includes second support and second filter, the quantity of second filter is a plurality of, along the length direction of second support is arranged and is set up, the second filter is relative the slope of second support sets up, wherein, adjacent two be provided with one between the first filter the second filter.

2. The marine fixed explosion-proof fan as claimed in claim 1, wherein the impeller comprises a fan blade and a rotating shaft, and rubber is disposed on the opposite side of the fan blade connected with the rotating shaft.

3. The marine fixed explosion-proof fan of claim 1, wherein the connecting member comprises at least two support rods, and two ends of the support rods are respectively connected with the explosion-proof motor and the casing.

4. The marine stationary explosion proof fan of claim 3 wherein a plurality of said struts are arranged in a circumferential array along said housing.

5. The marine fixed explosion proof fan of claim 1, wherein the explosion proof layer is a polytetrafluoroethylene layer.

6. The marine fixed anti-explosion fan according to claim 1, wherein the air inlet end is provided with mounting holes having a square shape, the number of the first supports is two, and the first supports are respectively disposed at left and right sides of the mounting holes, the first filter plate has a square shape, and both sides of the first filter plate are respectively connected to the first supports.

7. The marine fixed explosion proof fan of claim 1, wherein the first filter plate comprises a first outer layer, a second outer layer and an inner layer, the number of the inner layers is plural, and the lamination is disposed between the first outer layer and the second outer layer.

8. The marine fixed explosion-proof fan of claim 7, wherein the first outer layer, the second outer layer and the inner layer are made of metal materials, the first outer layer, the second outer layer and the inner layer are respectively provided with a vent hole, and the area of the vent hole on the first outer layer and the area of the vent hole on the second outer layer are larger than that of the vent hole on the inner layer.

9. The marine fixed explosion vent of claim 8, wherein the vent holes in the first and second outer layers are circular and the vent holes in the inner layer are square.

10. The marine fixed booster fan of claim 8, further comprising a bracket disposed outside the enclosure.