Bag filter for air conditioner capable of improving pressure load

Abstract

The present invention relates to an air-conditioning bag filter for improving pressure load, the pressure load caused by a diaphragm is improved by changing the diaphragm structure of the bag filter for preventing expansion caused by air pressure, and the air-conditioning bag filter for improving pressure load is provided in a plurality of support frames of an air conditioner for filtering air flowing in from the outside. The present invention relates to a bag filter comprising: a filter body comprising two layers of filter members including a filter body on one side and a filter body on the other side, an opening being formed on one side, and the remaining edges being ultrasonically deposited to form a space between the filter members; and shape maintaining diaphragms formed at predetermined intervals along the air inflow direction so as to prevent the space from expanding to a predetermined size or more due to the air flowing into the filter member.

Description

Technical Field

[0001] The present invention relates to a bag filter for air conditioner with improved pressure load, and the pressure load caused by the diaphragm is improved by changing the diaphragm structure of the bag filter for preventing expansion caused by air pressure. Background Art

[0002] Generally, air conditioning equipment is installed in buildings used as offices, hospitals and industrial sites. Air filters are installed in the air conditioning equipment to remove dust, impurities, bacteria and the like in the air to provide purified air to the room. In a common air filter, the filter is fixed to a rectangular filter frame, which is further fixed to an air filter mounting frame installed in an air conditioning duct.

[0003] In the existing state where the filter is fixed to the rectangular filter frame, the filter is installed on the filter frame, and although one side is in an open state, the remaining edge is sealed. Bag filters installed in air conditioning equipment are mostly installed adjacent to each other, so as the bag filters expand due to the inflow of air, there is a problem of interference between adjacent filters due to the expansion of the bag filters.

[0004] Therefore, in order to solve the above-mentioned problems, a bag filter structure is required that can reduce the pressure load of the filter by preventing the bag filter from over-expanding when air flows in and can effectively discharge filtered air between each other.

[0005] Prior art literature

[0006] Patent Literature

[0007] Korean Patent Gazette No. 10-2240092 (granted on April 8, 2021)

[0008] Korean Utility Model Publication No. 20-0121754 (authorized on April 24, 1998)

[0009] Korean Utility Model Publication No. 20-1997-0060833 (published on December 10, 1997)

[0010] Korean Utility Model Publication No. 20-0494132 (authorized on August 3, 2021) Summary of the invention

[0011] Therefore, in order to solve the above-mentioned problems, the object of the present invention is to provide a bag filter for air conditioning with improved pressure load, that is, the filter can maintain a specified shape, thereby preventing interference between filters and minimizing the pressure load caused by air inflow.

[0012] In order to achieve the above-mentioned purpose, the present invention provides a bag filter for air conditioning with improved pressure load, and a plurality of bag filters are arranged on the support frame of the air conditioner for filtering the air flowing in from the outside. The bag filter comprises: a filter body, which is composed of two layers of filter components, a filter body on one side and a filter body on the other side, an opening is formed on one side, and the remaining edge is ultrasonically welded to form a space between the filter components; and a shape maintaining diaphragm, which is formed at a specified interval along the air inflow direction to prevent the space from expanding to a size larger than a specified size due to the air flowing into the filter component.

[0013] In the shape maintaining diaphragm of the present invention, one side of the shape maintaining diaphragm is ultrasonically welded to one filter body, and the other side of the shape maintaining diaphragm is ultrasonically welded to the other filter body, thereby limiting the expansion of the space to a predetermined degree.

[0014] In the present invention, the shape-maintaining membrane is composed of a synthetic resin net having a mesh size of 10 to 100.

[0015] In the present invention, the synthetic resin net is one or more layers.

[0016] In the present invention, synthetic resin films are attached to or synthetic resins are coated on both side edges of the synthetic resin net to prevent damage due to heat generated by ultrasonic welding.

[0017] In the present invention, the synthetic resin film is thermally bonded to the synthetic resin web.

[0018] In the present invention, the synthetic resin films are attached to both side edges of one surface or both side edges of both surfaces of the synthetic resin net.

[0019] In the present invention, the synthetic resin is coated on both side edges of one side or both side edges of both sides of the synthetic resin net.

[0020] The present invention has the following advantages. Since the shape-maintaining diaphragm is formed at a predetermined interval by ultrasonically welding the edge, it is not only possible to constantly maintain the shape of the bag filter, but also to prevent interference between filters to significantly reduce the pressure load caused by air.

[0021] Furthermore, the present invention has the following advantages: since the shape maintaining membrane is a mesh net, the air pressure load that may be caused by the shape maintaining membrane can be reduced.

[0022] Furthermore, the present invention has the following advantages: since the shape-maintaining membranes are mesh nets, air can be moved between the shape-maintaining membranes, thereby filtering a large amount of air. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1The present invention is a perspective view showing a bag filter arranged on a filter frame.

[0024] Figure 2 This is a perspective view of a bag filter according to the present invention being installed on a filter frame.

[0025] Figure 3 It is a three-dimensional view of the preparation state of the bag filter of the present invention.

[0026] Figure 4 This is a perspective view showing that the shape-retaining membrane of the bag filter of the present invention is attached by ultrasonic welding.

[0027] Figure 5 A front view of a first embodiment of a shape-retaining membrane for a bag filter of the present invention.

[0028] Figure 6 and Figure 7 A front view and a side view of a second embodiment of the shape-retaining membrane of a bag filter of the present invention.

[0029] Figure 8 and Fig. 9 A front view and a side view of a third embodiment of the shape-retaining membrane of a bag filter according to the present invention.

[0030] Description of Reference Numerals

[0031] 1: Filter Framework

[0032] 2: Bag filter

[0033] 10: Main frame

[0034] 11: Subframe

[0035] 21: Filter body

[0036] 22: Edge

[0037] 23: Opening

[0038] 24: Shape-maintaining diaphragm

[0039] 25: Ultrasonic welding line DETAILED DESCRIPTION

[0040] Hereinafter, the preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, this is only for detailed description so that those skilled in the art can easily implement the present invention, and therefore, it should not be understood as limiting the technical concept and scope of the present invention.

[0041] Figure 1The figure shows a state where the bag filter 2 of the present invention is set in the filter frame 1. The bag filter 2 of the present invention is set in the air conditioner after being fixedly installed in the filter frame 1. The filter frame 1 is composed of a main frame 10 and a sub-frame 11 (11a, 11b) for fixing the bag filter 2. The sub-frame 11 can fix the upper ends of the bag filters 2 on both sides to the main frame 10 in a specified shape, and is composed of a sub-frame 11a on one side and a sub-frame 11b on the other side. Figure 2 As shown, the bag filter 2 can form a rectangular opening 23 through the sub-frame 11 . Figure 2 The figure shows a state where the bag filter 2 of the present invention is fixed by the sub-frame 11. As the upper end of the opening of the bag filter 2 formed at a predetermined interval in the sub-frame 11 is fixed, the upper end of the whole is formed into a rectangular quadrilateral.

[0042] Figure 3 The general shape of the bag filter 2 of the present invention is shown. The bag filter 2 is composed of synthetic fibers as a filter component, so its shape can be easily deformed. When the bag filter 2 is completed, it has the following shape: Figure 3 Its structure is as shown. Figure 3 As shown, the bag filter 2 includes: a filter body 21, which is composed of two layers of filter components on one side and the other side; and a shape-maintaining diaphragm 24, so that the filter body 21 is connected to maintain a specified shape. Specifically, the filter body 21 is composed of a filter body 21a on one side and a filter body 21b on the other side. The filter body 21a on one side and the filter body 21b on the other side are formed with an opening 23 on one side, and the remaining edges 22 except the opening are formed by ultrasonic welding. As the edges 22 are ultrasonically welded, a space 23a is formed between the filter body 21a on one side and the filter body 21b on the other side. A shape-maintaining diaphragm 24 is attached between the filter body 21a on one side and the filter body 21b on the other side, so that the filter body 21 can maintain a specified shape to prevent the filter body 21 from being over-expanded due to the inflow of air. As a result, the filter body 21a on one side and the filter body 21b on the other side can expand according to the length of the shape-maintaining diaphragm 24. The shape-maintaining diaphragm 24 is formed along the inflow direction of the air, which can minimize the pressure load acting on the inflowing air. Furthermore, since the filter bodies 21 are attached at a predetermined interval, the size to which the filter bodies 21 can expand is limited by the shape-maintaining diaphragm 24, thereby preventing interference between adjacent filter bodies 21. The shape-maintaining diaphragm 24 is attached to the inner sides of the filter bodies 21a on one side and the filter bodies 21b on the other side by ultrasonic welding. The shape-maintaining diaphragm 24 is attached to the filter bodies 21 along the ultrasonic welding lines 25 (25a, 25b) shown in the drawings. Figure 4This is an enlarged view of the shape maintaining membrane 24. As shown in the figure, the shape maintaining membrane 24 is attached to the filter body 21 by ultrasonic welding, and the shape maintaining membrane 24 can restrict the filter body 21 from expanding into a predetermined shape.

[0043] Figure 5 The first embodiment of the shape-maintaining diaphragm 24 is shown. As shown in the figure, the shape-maintaining diaphragm 24 can be composed of a mesh net, and thus, the size of the lattice-shaped holes can be formed in the range of 10 to 100 meshes. The reason why the shape-maintaining diaphragm 24 is formed of a mesh net is that the shape-maintaining diaphragm 24 allows air to easily flow to the spaces on the left and right sides. When air can flow freely toward the left and right sides, the air is prevented from being retained only in the space 23a formed by the shape-maintaining diaphragm 24, and the air can easily flow into the spaces on the left and right sides to reduce the air pressure load that may be caused by the shape-maintaining diaphragm 24. As shown in the figure, the shape-maintaining diaphragm 24 is composed of a mesh net 241.

[0044] Figure 6 and Figure 7 A shape-maintaining diaphragm 24' of a second embodiment is shown. As shown in the figure, the shape-maintaining diaphragm 24' is composed of a mesh net 241' constituting a diaphragm body, and a synthetic resin film 242' attached along the length direction of the mesh net 241'. The synthetic resin film 242' is attached to the edge in a manner having a specified width. The synthetic resin film 242' has the following structure, which is used to prevent the mesh net 241' from being cut and easily detached when the mesh net 241' is ultrasonically welded. The synthetic resin film 242' is attached by thermal bonding, or a heat-peel tape of a synthetic resin material can be used. In the case of using a heat-peel tape, heat can be applied to remove the release paper and attach only the film. The synthetic resin film 242' is constantly attached along the edges on both sides. Figure 7 The synthetic resin films 242a' and 242b' are shown attached to the front and back surfaces. If necessary, synthetic resin films may be attached to both the front and back surfaces to further increase strength.

[0045] Figure 8 and Fig. 9 A shape maintaining diaphragm 24' of a third embodiment is shown. The shape maintaining diaphragm 24' of the third embodiment is composed of a mesh net 241' constituting a diaphragm body and a synthetic resin material 242' applied along the length direction of the mesh net 241'. The synthetic resin material 242' can be applied in the form of a thin film using a dispensing machine or the like. The coating can be performed on one of the front or back sides, or on both the front or back sides. The larger the mesh value, the smaller the mesh diameter constituting the mesh net, and therefore, in the case of ultrasonic welding, it is easily damaged by ultrasonic waves. Therefore, the synthetic resin material can be applied to a specified thickness to protect the mesh net. The synthetic resin material can be applied to the front or back side or both sides of the mesh net to enhance the strength of the mesh net.

[0046] The above embodiments are merely illustrative, and it is obvious that a person skilled in the art can implement the present invention in various embodiments without departing from the subject matter and scope of the present invention. Therefore, the above embodiments should be understood as illustrative in a non-limiting sense, and all embodiments within the scope of the invention and its equivalent scope belong to the scope of the present invention.

Claims

1. A bag filter for air conditioning to improve pressure load, a plurality of which are arranged on the support frame of the air conditioner, and used to filter the air flowing in from the outside, characterized in that: The above-mentioned bag filter comprises: A filter body, which is composed of two filter components, a filter body on one side and a filter body on the other side, with an opening formed on one side and the remaining edge being ultrasonically welded to form a space between the filter components; and The shape-maintaining diaphragms are formed at predetermined intervals along the air inflow direction to prevent the space from expanding to a predetermined size or more due to the inflow of air into the filter member.

2. The bag filter for air conditioning with improved pressure load according to claim 1, characterized in that: In the shape maintaining diaphragm, one side of the shape maintaining diaphragm is ultrasonically welded to the one filter body, and the other side of the shape maintaining diaphragm is ultrasonically welded to the other filter body, thereby limiting the expansion of the space to a predetermined degree.

3. The bag filter for air conditioning with improved pressure load according to claim 2, characterized in that: The shape-retaining separator is composed of a synthetic resin net of 10 to 100 meshes.

4. The bag filter for air conditioning with improved pressure load according to claim 3, characterized in that: The synthetic resin net is more than one layer.

5. The bag filter for air conditioning with improved pressure load according to claim 4, characterized in that: Synthetic resin films are attached to the edges of both sides of the synthetic resin net or the synthetic resin is coated thereon to prevent damage caused by the heat generated by ultrasonic welding.

6. The bag filter for air conditioning with improved pressure load according to claim 5, characterized in that: The synthetic resin film is thermally bonded to the synthetic resin net.

7. The bag filter for air conditioning with improved pressure load according to claim 5, characterized in that: The synthetic resin film is attached to both side edges of one side or both side edges of both sides of the synthetic resin net.

8. The bag filter for air conditioning with improved pressure load according to claim 5, characterized in that: The synthetic resin is coated on both side edges of one side or both side edges of both sides of the synthetic resin net.

Images