CN211486947U

CN211486947U - Detachable air filtering device for external centrifugal ventilator

Info

Publication number: CN211486947U
Application number: CN201922086182.XU
Authority: CN
Inventors: 朱国源
Original assignee: Wuxi Xihui Chemical Energy Saving Equipment Co ltd
Current assignee: Wuxi Xihui Chemical Energy Saving Equipment Co ltd
Priority date: 2019-11-27
Filing date: 2019-11-27
Publication date: 2020-09-15
Anticipated expiration: 2029-11-27

Abstract

The utility model relates to the technical field of centrifugal ventilators, in particular to a detachable air filtering device for an external centrifugal ventilator, which comprises a hollow cylindrical inner filtering body, wherein the outer end of the inner filtering body is sealed with a first filtering leaf in a hollow grid shape, the outer end of the inner filtering body is sleeved with a middle filtering body, the outer end of the middle filtering body is sealed with a second filtering leaf in a hollow grid shape, a filtering medium is arranged between the first filtering leaf and the second filtering leaf, the first filtering leaf and the second filtering leaf are coaxially provided with a hollow cylindrical outer filtering body in a penetrating way, the outer end of the outer filtering body is sealed with a third filtering leaf in a hollow grid shape, the utility model solves the problem that the air filtering device in the prior art is not easy to detach through an external air filtering device, and the three-layer filtering structure and the filtering medium can fully filter gas, thoroughly clear away the interior granule impurity of gas and dust, whole practicality is strong, and is efficient, effectual.

Description

Detachable air filtering device for external centrifugal ventilator

Technical Field

The utility model relates to a centrifugal fan technical field, concretely relates to external centrifugal fan is with dismantling air filter equipment.

Background

In current centrifugal fan technical field, because some place demands and use needs, need filter the wind that centrifugal fan blew off to get rid of the foreign particle in the air, but some filter equipment that have now are all installed inside the air outlet, and it is difficult to dismantle, observe and change.

SUMMERY OF THE UTILITY MODEL

To exist not enough among the prior art, the utility model provides an external centrifugal fan is with dismantling air filter, the technical problem that solve makes air filter on the centrifugal fan can be convenient for dismantle in order to wash and change, will guarantee sufficient filter effect simultaneously.

In order to solve the technical problem, the utility model provides a technical scheme is: a detachable air filtering device for an external centrifugal ventilator comprises a hollow cylindrical inner filtering body, the inner end of the inner filtering body is fixedly connected with an air outlet of the centrifugal ventilator, the outer end of the inner filtering body is sealed with a first hollow latticed filtering leaf, the outer end of the inner filtering body is sleeved with a middle filtering body, the middle filtering body is also hollow cylindrical and is attached to the inner filtering body, the outer end of the middle filtering body is sealed with a second hollow latticed filtering leaf, the size of the grid of the second filtering leaf is smaller than that of the grid of the first filtering leaf, a filtering medium is arranged between the first filtering leaf and the second filtering leaf, the first filtering leaf and the second filtering leaf are coaxially penetrated with the outer filtering body, the outer end of the outer filtering body is sealed with a third hollow latticed filtering leaf, the size of the grid of the third filtering leaf is the same as that of the first filtering leaf, the first filtering leaf, the second filtering leaf and the third filtering leaf are parallel.

Further, the grid is in a regular distribution rhombus shape.

Further, the filter medium is a natural fiber filter cloth.

Furthermore, the inner end of the inner filter body is provided with an installation groove, and the air outlet of the centrifugal ventilator is inserted into the installation groove.

Furthermore, the middle filter body and the inner filter body are fixedly connected through screws.

Furthermore, a fixing rod is connected between the inner end of the outer filtering body and the inner filtering body as well as the middle filtering body.

The beneficial effect that this technical scheme brought is: the problem of the difficult dismantlement of air filter among the prior art has been solved through external air filter, and the setting up of three-layer filtration structure and filter media can be abundant filter gas, thoroughly clears away granule impurity and dust in the gas body, and detachable sets up and can be convenient for collect and handle impurity, further pollution abatement, and whole practicality is strong, and is efficient, and is effectual.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic structural view of a detachable air filtering device for an external centrifugal fan according to an embodiment of the present invention;

in the figure: 1-inner filter body, 11-first filter leaf, 12-mounting groove, 2-middle filter body, 21-second filter leaf, 22-filter medium, 3-outer filter body, 31-third filter leaf, 4-screw and 5-fixing rod.

Detailed Description

The preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, and it should be understood that the preferred embodiments are described herein for purposes of illustration and explanation, and not limitation.

As shown in fig. 1, the detachable air filtering device for the external centrifugal ventilator includes an internal filtering body 1 in a hollow column shape, the inner end of the internal filtering body 1 is fixedly connected with an air outlet of the centrifugal ventilator, the shape and size of the internal filtering body are matched with the air outlet of the centrifugal ventilator, the outer end of the internal filtering body 1 is provided with a first filtering leaf 11 in a hollow grid shape in a sealed manner, and thus, air blown out from the air outlet can be filtered by the first filtering leaf 11. The inner filter body 1 is sleeved with a middle filter body 2, the middle filter body 2 is also in a hollow column shape, and the middle filter body 2 is attached to the inner filter body 1. The outer end of the middle filter body 2 is also sealed with a second filter leaf 21 in a hollow grid shape, wherein the grid size of the second filter leaf 21 is smaller than that of the first filter leaf 11, and a filter medium 22 is further arranged between the first filter leaf 11 and the second filter leaf 21, so that gas filtered by the first filter leaf 11 can be filtered by the filter medium 22 and the second filter leaf 21, meanwhile, the second filter leaf 21 with a smaller grid can further filter the gas passing through the first filter leaf 11, the filtering effect is gradually improved, and finally no particle impurities and dust can pass through the second filter leaf 21. The first filter leaf 11 and the second filter leaf 21 are coaxially provided with a hollow cylindrical outer filter body 3 in a penetrating manner, the outer end of the outer filter body 3 is sealed with a third filter leaf 31 which is also in a hollow grid shape, the grid size of the third filter leaf 31 is the same as that of the first filter leaf 11, and the first filter leaf 11, the second filter leaf 21 and the third filter leaf 31 are parallel, so that the gas filtered by the filter medium 22 and the second filter leaf 21 can be filtered by the third filter leaf 31 in the last step and blown out from the third filter leaf 31 at a high flow rate. Simultaneously, interior filter body 1, well filter body 2 and the outer filter body 3 between be the detachable connection, can be so that can wash the change with whole dismantlement after filter work, further reduce the pollution, improved suitability.

In this embodiment, the grid is the rhombus shape of regular distribution, has restricted the shape of grid from this, and the grid that is the rhombus shape can be better big enough, the grid rate is higher the circumstances under to gas transmission filtration again of shape to reduce the influence of filtering gas to the velocity of flow, made whole process high efficiency, orderly.

In this embodiment, the filter medium 22 is a natural fiber filter cloth, which has good effect and is easy to collect after the filtration.

In this embodiment, the inner end of the inner filter body 1 is provided with an installation groove 12, and the air outlet of the centrifugal fan is inserted into the installation groove 12, thereby realizing the fixed connection between the inner filter body 1 and the centrifugal fan.

In the present embodiment, the middle filter body 2 and the inner filter body 1 are fixedly connected by screws 4, thereby realizing the detachable connection between the middle filter body 2 and the inner filter body 1.

In this embodiment, be connected with the dead lever between the inner of outer filter body 3 and interior filter body 1 and the middle filter body 2, further carried out stability and fixed to overall structure between outer filter body 3, interior filter body 1 and the middle filter body 2 from this, prevented that the in-process of centrifugal fan work from taking place the circumstances such as drop owing to rocking, improved stability can.

To sum up, the utility model relates to an external centrifugal fan is with dismantling air filter has solved the difficult problem of dismantling of air filter among the prior art through external air filter, and three-layer filtering structure and filter media's setting can be abundant filters gas, thoroughly clears away granule impurity and dust in the gas body, and detachable sets up and can be convenient for collect and handle impurity, and further pollution abatement, whole practicality is strong, and is efficient, effectual.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides an external centrifugal fan is with dismantling air filter which characterized in that: comprises a hollow cylindrical internal filter body (1), the inner end of the internal filter body (1) is fixedly connected with an air outlet of a centrifugal ventilator, the outer end of the internal filter body (1) is sealed with a first filter leaf (11) which is in a hollow grid shape, the external sleeve of the internal filter body (1) is provided with a middle filter body (2), the middle filter body (2) is also in a hollow column shape, the middle filter body (2) is attached to the internal filter body (1), the outer end of the middle filter body (2) is sealed with a second filter leaf (21) which is also in a hollow grid shape, the grid size of the second filter leaf (21) is smaller than that of the first filter leaf (11), a filter medium (22) is arranged between the first filter leaf (11) and the second filter leaf (21), and the first filter leaf (11) and the second filter leaf (21) are coaxially provided with the hollow cylindrical external filter body (3) in a penetrating way, the outer end of the outer filter body (3) is sealed with a third filter leaf (31) which is also in a hollow grid shape, the grid size of the third filter leaf (31) is the same as that of the first filter leaf (11), and the first filter leaf (11), the second filter leaf (21) and the third filter leaf (31) are parallel.

2. The detachable air filtering device for the external centrifugal ventilator according to claim 1, wherein: the grid is in a regular distribution rhombus shape.

3. The detachable air filtering device for the external centrifugal ventilator according to claim 1, wherein: the filter medium (22) is natural fiber filter cloth.

4. The detachable air filtering device for the external centrifugal ventilator according to claim 1, wherein: the inner end of the inner filter body (1) is provided with a mounting groove (12), and an air outlet of the centrifugal fan is inserted into the mounting groove (12).

5. The detachable air filtering device for the external centrifugal ventilator according to claim 1, wherein: the middle filter body (2) is fixedly connected with the inner filter body (1) through a screw (4).

6. The detachable air filtering device for the external centrifugal ventilator according to claim 1, wherein: a fixing rod (5) is connected between the inner end of the outer filtering body (3) and the inner filtering body (1) and the middle filtering body (2).