Baking varnish outer frame type medium efficiency filter

Abstract

The utility model discloses a stoving varnish outer frame type medium efficiency filter, which belongs to a filter device and comprises a plurality of filter bags with openings on one side and a plurality of rectangular filter frames, and the openings of the filter bags are turned outwards and wrap the filter frames to form a filter piece. The long edges of the plurality of filtering pieces are sequentially propped against each other and simultaneously clamp the filtering bag and the filtering frame which are propped against the two sides through the long edge fixing pieces, so that a combined filtering frame is formed in a detachable fixing manner, and the periphery of the combined filtering frame is fixed through a baking varnish outer frame; the problem that under the condition of overlarge air pressure, the opening of the filter bag is easily separated from a filter frame for fixing the filter bag due to the influence of the air pressure for a long time, so that part of air flows out through a gap at the separation part, and the filter precision is influenced is solved.

Description

Technical Field

[0001] The utility model relates to a filtering device, in particular to a baking varnish outer frame type medium efficiency filter. Background Art

[0002] At present, most medium-efficiency bag filters are relatively fixed by the outer frame through the long sides of the bags pressing against each other. When the wind pressure is too high, the opening of the filter bag is easily separated from the filter frame that fixes the filter bag due to the influence of the wind pressure for a long time, causing part of the air to flow out through the gap at the separation point, affecting the filtering accuracy, so it needs to be improved. Utility Model Content

[0003] In order to overcome the deficiencies of the prior art, the utility model provides a baking varnish outer frame type medium efficiency filter to solve the above technical problems.

[0004] The technical solution adopted by the utility model to solve its technical problems is:

[0005] A medium-efficiency filter with a painted outer frame comprises a plurality of filter bags with an opening on one side and a plurality of rectangular filter frames. The openings of the filter bags are turned outward and wrap the filter frames to form filter elements. The long sides of the plurality of filter elements are abutted against each other in sequence and the filter bags and filter frames on both sides are clamped simultaneously by long side fixing members to form a combined filter frame in a detachable fixing manner. The outer periphery of the combined filter frame is fixed by a painted outer frame.

[0006] By adopting the above technical solution, the assembler takes out a filter bag and a filter frame, passes the opening of the filter bag through the filter frame and turns it outside to wrap the filter frame, thus forming a filter element. In this way, 6 filter elements are formed, and the long sides are successively opposed and fixed with long side fixings to form a square combined filter frame; the long side fixings can tightly fix the opening of the filter bag and the filter frame together to avoid the filter bag and the filter frame being separated due to long-term wind pressure.

[0007] Preferably, the long side fixing piece is a long side strip clamp with a triangular cross section, an open corner and elasticity, and the opening width of the long side strip clamp is less than twice the thickness of the filter frame.

[0008] By adopting the above technical solution, the length of the long side strip clamp is slightly smaller than the length of the long side of the filter frame, and the elasticity of the long side strip clamp can be used to clamp the filter frame and the filter bag at the same time.

[0009] Preferably, the side edges of the opening of the long-side strip clamp extend inwardly to form a barb portion; when the long-side strip clamp clamps the filter bag and the filter frame on both sides, the barb portion abuts against the inner wall of the filter frame.

[0010] By adopting the above technical solution, the barb portion can bend the opening of the filter bag inward, thereby increasing the friction between the long side strip clamp and the filter bag, and further stabilizing the filter bag.

[0011] Preferably, it also includes short side fixing members, which clamp the filter bag and the filter frame at the short sides of the filter element.

[0012] By adopting the above technical solution, the filter bag at the short side of the filter element may also be at risk of falling off, so the utility model further provides a short side fixing piece to fix the filter bag at the short side of the filter element.

[0013] Preferably, the short side fixing member is a short side strip clamp that clamps all the short sides of one side of the filter element at the same time. The short side strip clamp has a triangular cross-section with an open corner and is elastic.

[0014] By adopting the above technical solution, the principle and function of the short side strip clamp and the long side strip clamp are the same, and both utilize elasticity to clamp the filter frame and the filter bag.

[0015] Preferably, the short side fixing members are a plurality of double-angle clamps, which include two right-angle plates resting against the inner corners of adjacent filter element frames and a connecting plate connecting the two right-angle plates and suspended and fixed to the filter element; the connecting plate is two sub-plates connected by tension bolts, and the two sub-plates are respectively connected integrally with the two right-angle plates.

[0016] By adopting the above technical solution, the assembler first loosens the tensioning bolts to expand the distance between the two right-angle plates, and respectively places the two right-angle plates at the inner corners of the same side of two adjacent filter frames. At this time, the filter bag is clamped between the right-angle plates and the filter frame. The connecting plate is then hung on the filter frame, and the tensioning bolts are tightened so that the right-angle plates apply pressure to the filter frame and the filter bag, further stabilizing the filter bag. This fixing method is very stable, making it impossible for the filter bag to detach from the filter frame at all.

[0017] Preferably, the short side fixing piece is a glue layer arranged on the inner wall of the painted outer frame.

[0018] By adopting the above technical solution, the filter bag is adhered to the painted outer frame to achieve a fixing effect.

[0019] The beneficial effects of the utility model are:

[0020] 1. The elasticity of the long-side strip clamp can be used to clamp the filter frame and the filter bag at the same time, and the filter bag opening is tightly fixed with the filter frame to prevent the filter bag and the filter frame from being separated due to the influence of wind pressure for a long time;

[0021] 2. A barb is provided on the long side strip clamp, which can bend the opening of the filter bag inward, thereby increasing the friction between the long side strip clamp and the filter bag and further stabilizing the filter bag;

[0022] 3. The short side fixing piece of the double angle clamp provided by the utility model can clamp the filter bag between the right angle plate and the filter frame, and use the tightening bolts to narrow the gap between the right angle plates to give pressure to the filter frame and the filter bag, thereby further stabilizing the filter bag. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0024] Figure 1 It is a structural schematic diagram of the filter element in the utility model;

[0025] Figure 2 It is a schematic diagram of the structure of six filter elements and a paint-coated outer frame in the utility model;

[0026] Figure 3 is a three-dimensional cross-sectional view of a combined filter frame;

[0027] Figure 4 for Figure 3 A partial enlarged view of the middle A;

[0028] Figure 5 is a three-dimensional cross-sectional view of a long-side strip clamp with an undercut portion;

[0029] Figure 6 It is a schematic diagram of a structure in which the short side fixing member is a glue layer;

[0030] Figure 7 is a schematic diagram of a structure in which the short side fixing member is a short side strip clip;

[0031] Figure 8 This is a schematic diagram of a structure in which the short side fixing member is a double angle clamp;

[0032] Fig. 9 It is a schematic diagram of the structure of the double angle clamp.

[0033] The descriptions of the reference numerals in the figures are as follows:

[0034] 1. Filter element; 101. Filter bag; 102. Filter frame;

[0035] 2. Painted outer frame;

[0036] 3. Long side strip clamp; 301. Barb part;

[0037] 4. Adhesive layer;

[0038] 5. Short side bar clip;

[0039] 6. Double angle clamp; 601. Right angle plate; 602. Connecting plate; 603. Sub-plate; 604. Tension bolt. DETAILED DESCRIPTION

[0040] The following will clearly and completely describe the concept, specific structure and technical effects of the utility model in combination with the embodiments and drawings, so as to fully understand the purpose, characteristics and effects of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, other embodiments obtained by technicians in this field without creative work are all within the scope of protection of the utility model. In addition, all the connection / connection relationships involved in the patent do not refer to the direct connection of components, but refer to the formation of a better connection structure by adding or reducing connection accessories according to the specific implementation situation. The various technical features in the creation of the utility model can be combined interchangeably without conflicting with each other.

[0041] A paint frame medium efficiency filter, such as Figure 1 and Figure 2 As shown, it includes a plurality of filter bags 101 with one side open and a plurality of rectangular filter frames 102 .

[0042] The assembler takes out a filter bag 101 and a filter frame 102, passes the opening of the filter bag 101 through the filter frame 102 and turns it outward to wrap the filter frame 102, thus forming a filter element 1. In this way, 6 filter elements 1 are formed. The long sides of the 6 filter elements 1 are against each other to form a combined filter frame, and the outer periphery of the combined filter frame is fixed by a baking varnish outer frame 2. The top wall of the baking varnish outer frame 2 is hinged to the left wall (not shown in the figure) and fixed to the right wall by bolts, so that the assembler can put the combined filter frame from the top of the baking varnish outer frame 2. Compared with the traditional galvanized frame, the baking varnish outer frame 2 is more corrosion-resistant and is an improved product of the galvanized frame.

[0043] In order to reinforce the filter bag 101 and the filter frame 102 and prevent the opening of the filter bag 101 from being easily separated from the filter frame 102 due to the influence of wind pressure for a long time when the wind pressure is too high, the utility model further provides a long side fixing piece and a short side fixing piece.

[0044] In order to conveniently show the specific structure of the long side fixing parts and the short side fixing parts, Figures 3 to 9 The filter bag 101 is omitted in the figure.

[0045] 1. Long side fixings

[0046] like Figure 3 and Figure 4 As shown, the long sides of the filter element 1 are abutted against each other in sequence and the filter bag 101 and the filter frame 102 on both sides are clamped by the long side fixing members at the same time, so as to form a square combined filter frame in a detachable fixing manner. The long side fixing members can tightly fix the opening of the filter bag 101 and the filter frame 102 together to prevent the filter bag 101 and the filter frame 102 from being separated due to the influence of wind pressure for a long time.

[0047] Specifically, the long side fixing member is a long side strip clamp 3 with a triangular cross section, an open corner and elasticity, and the opening width of the long side strip clamp 3 is less than twice the thickness of the filter frame 102. The length of the long side strip clamp 3 is slightly less than the length of the long side of the filter frame 102, and the elasticity of the long side strip clamp 3 can clamp the filter frame 102 and the filter bag 101 at the same time.

[0048] like Figure 5 As shown, the side edge of the opening of the long side strip clip 3 extends inward to form a barb portion 301; when the long side strip clip 3 clamps the filter bag 101 and the filter frame 102 on both sides, the barb portion 301 abuts against the inner wall of the filter frame 102. The barb portion 301 can bend a portion of the filter bag 101 inward, thereby increasing the friction between the long side strip clip 3 and the filter bag 101, and further stabilizing the filter bag 101.

[0049] 2. Short side fixings

[0050] Since the filter bag 101 at the short side of the filter element 1 also has the risk of falling off, the utility model further provides a short side fixing piece to fix the filter bag 101 at the short side of the filter element 1, and the short side fixing piece is used to clamp the filter bag 101 and the filter frame 102 at the short side of the filter element 1.

[0051] 1. The first type of short side fixing

[0052] like Figure 6 As shown, the short side fixing member is a glue layer 4 arranged on the inner wall of the paint outer frame 2. The glue layer 4 fixing method has the advantages of simple operation and low cost, but because the glue layer 4 is difficult to remove and is too tightly adhered to the filter bag 101, it is not conducive to regular replacement of the filter bag 101.

[0053] 2. The second short side fixing

[0054] like Figure 7 As shown, the short side fixing member is a short side strip clamp 5 that clamps all the short sides of one side of the filter element 1 at the same time. The cross section of the short side strip clamp 5 is triangular, has an open corner and is elastic. The principle and function of the short side strip clamp 5 and the long side strip clamp 3 are the same, both of which use elasticity to clamp the filter frame 102 and the filter bag 101.

[0055] 3. The third short side fixing

[0056] like Figure 8 and Fig. 9 As shown, the short side fixing members are a plurality of double angle clamps 6, which include two right angle plates 601 resting against the inner corners of the frames of adjacent filter elements 1 and a connecting plate 602 connecting the two right angle plates 601 and suspended and fixed to the filter element 1; the connecting plate 602 is two sub-plates 603 connected by tension bolts 604, and the two sub-plates 603 are respectively connected integrally with the two right angle plates 601.

[0057] The assembler first loosens the tension bolts 604 to expand the distance between the two right-angle plates 601, and respectively places the two right-angle plates 601 at the inner corners of the same side of two adjacent filter frames 102. The connecting plate 602 is then hung on the filter frame 102. At this time, the filter bag 101 is clamped between the right-angle plate 601 and the filter frame 102. The tension bolts 604 are tightened so that the right-angle plate 601 applies pressure to the filter frame 102 and the filter bag 101, further stabilizing the filter bag 101. This fixing method is very stable, so that the filter bag 101 cannot be completely separated from the filter frame 102, and it is also easy to disassemble and replace the filter bag 101.

[0058] The above is a specific description of the preferred implementation of the utility model, but the invention of the utility model is not limited to the described embodiments. Technical personnel familiar with the field can also make various equivalent deformations or substitutions without violating the spirit of the utility model. These equivalent deformations or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A paint-coated frame medium-efficiency filter, characterized in that: The filter bag (101) comprises a plurality of filter bags (101) with openings on one side and a plurality of rectangular filter frames (102); the openings of the filter bags (101) are turned outward and wrap around the filter frames (102) to form a filter element (1); the long sides of the plurality of filter elements (1) are abutted against each other in sequence and the filter bags (101) and the filter frames (102) on both sides abutting against each other are clamped simultaneously by long side fixing members to form a combined filter frame in a detachable fixing manner; the outer periphery of the combined filter frame is fixed by a baking varnish outer frame (2).

2. The paint-coated outer frame medium efficiency filter according to claim 1, characterized in that: The long side fixing piece is a long side strip clamp (3) with a triangular cross section, an open corner and elasticity, and the opening width of the long side strip clamp (3) is less than twice the thickness of the filter frame (102).

3. The paint-coated outer frame medium efficiency filter according to claim 2, characterized in that: The side edge of the opening of the long side strip clamp (3) extends inward to form a barb portion (301); when the long side strip clamp (3) clamps the filter bag (101) and the filter frame (102) on both sides, the barb portion (301) abuts against the inner wall of the filter frame (102).

4. The paint-coated outer frame medium efficiency filter according to claim 1, characterized in that: It also comprises a short side fixing piece, wherein the short side fixing piece clamps the filter bag (101) and the filter frame (102) at the short side of the filter element (1).

5. The paint-coated outer frame medium efficiency filter according to claim 4, characterized in that: The short side fixing member is a short side strip clamp (5) that simultaneously clamps all the short sides of one side of the filter element (1); the short side strip clamp (5) has a triangular cross section with an open corner and is elastic.

6. The paint-coated outer frame medium efficiency filter according to claim 4, characterized in that: The short side fixing members are a plurality of double-angle clamps (6), the double-angle clamps (6) comprising two right-angle plates (601) abutting against the inner corners of the frames of adjacent filter elements (1) and a connecting plate (602) connecting the two right-angle plates (601) and suspended and fixed to the filter element (1); the connecting plate (602) is two sub-plates (603) connected by tension bolts (604), and the two sub-plates (603) are respectively connected in one piece with the two right-angle plates (601).

7. The paint-coated outer frame medium efficiency filter according to claim 4, characterized in that: The short side fixing piece is a glue layer (4) arranged on the inner wall of the baking varnish outer frame (2).

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