High-temperature-resistant filter

Abstract

The utility model belongs to the field of filters, particularly relates to a high-temperature-resistant filter, and aims to solve the problems that some existing filter manufacturers use a bargaining mode, 270-degree silica gel is abandoned, a non-gel mode is adopted, fillers are replaced by special glass fiber materials, the products can meet field requirements at the beginning of operation, but the glass fiber materials have certain elasticity, so that the high-temperature-resistant filter is not easy to deform. In order to solve the problem that the filter fails due to the fact that the thickness of glass fibers is continuously thinned after long-time operation, the utility model provides the following scheme that the filter comprises a frame; the first turned-over edges are arranged in the frame, and the number of the first turned-over edges is four; the second flange is arranged on the outer side of the frame; the filter element is arranged in the frame; the filter paper is arranged in the frame, and two layers of filter paper are arranged; the telescopic layer is arranged between the two layers of filter paper; the high-temperature-resistant high-temperature-resistant filter paper can stably operate for a long time at the high temperature of 350 DEG C, and the overall stability of the high-temperature-resistant high-temperature-resistant high-temperature-resistant high-temperature-resistant high-pressure filter paper is good.

Description

Technical Field

[0001] The utility model relates to the technical field of filters, in particular to a high-temperature resistant filter. Background Art

[0002] The existing conventional high-temperature resistant filter is composed of a stainless steel frame, a main filter paper, an aluminum foil partition plate, an assembly adhesive and an air inlet and outlet surface gasket. When the upstream air passes through the filter paper of the filter, the filter paper will intercept the dust particles in the air and prevent them from flowing into the downstream, so as to protect the safety of the downstream clean process. Usually, such products are applied to high-temperature working environments such as tunnel ovens and drying and heating equipment.

[0003] At present, the mainstream sealant for domestic high-temperature resistant products is silica gel, but the actual maximum operating temperature of silica gel is < 270°. However, the working temperature of many customers in special occasions is < 350°, and the product cannot meet the requirements of the equipment. Running for a long time under such high-temperature working conditions will cause problems such as silica gel foaming, cracking and rapid aging, and finally the filter will fail, thus unable to ensure the working cleanliness of the customer.

[0004] Some filter manufacturers will use a tricky method, abandoning the 270° silica gel and adopting a glue-free form, and replacing the filler with a special glass fiber material. Such products can meet the on-site requirements at the beginning of operation, but such glass fiber materials have a certain elasticity. After a long time of operation, the thickness of the glass fiber will become thinner and thinner, and finally the filter will fail.

[0005] Therefore, we propose a high-temperature resistant filter to solve the above problems. Content of the Utility Model

[0006] The purpose of the utility model is to provide a high-temperature resistant filter to solve the disadvantages existing in the prior art.

[0007] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0008] A high-temperature resistant filter, comprising:

[0009] A frame;

[0010] A first flanging, arranged inside the frame, and there are four first flangings;

[0011] A second flanging, arranged outside the frame;

[0012] A filter element, arranged inside the frame;

[0013] A filter paper, arranged inside the frame, and there are two layers of filter paper;

[0014] A telescopic layer, arranged between the two layers of filter paper;

[0015] The sealant resistant to 350° is provided on the inner side of the filter paper.

[0016] Preferably, an inward turn is provided on one side of the first flanging.

[0017] Preferably, the length of the inward turn is 5 mm.

[0018] Preferably, a plurality of cooling boxes are fixedly installed on the outer side of the frame.

[0019] Preferably, a water injection port is fixedly communicated with the top of each of the plurality of cooling boxes, and a sealing cover is provided on the water injection port.

[0020] Preferably, a drain pipe is fixedly communicated with the cooling box, and a valve is provided on the drain pipe.

[0021] In the present utility model, the beneficial effects of the high-temperature resistant filter are as follows:

[0022] 1. Replace the sealant material with a fully imported special material sealant. The sealant has a temperature resistance of ≥ 400° and can operate stably for a long time at a high temperature of 350°.

[0023] 2. Adopt a reinforced design for the frame. The increased flanging size of the frame can strengthen the adhesion area of the assembly glue, thereby achieving overall stability. An inward turn of 5 mm is added to the end of the flanging of the frame, so that it can buckle the sealant to further strengthen its structure.

[0024] 3. A new design of a telescopic layer is made for the sealing structure. For the product resistant to 350°, two layers of filter paper and a layer of highly efficient telescopic special material layer are added between the stainless steel frame and the sealant, so that the material has a certain degree of flexibility, which can avoid the product failure caused by the deformation of the material stress during the operation and cooling of the filter at 350° working conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic structural diagram of a high-temperature resistant filter proposed by the present utility model;

[0026] Figure 2 It is a top view structural diagram of a high-temperature resistant filter proposed by the present utility model;

[0027] Figure 3 It is a Figure 2 A-A cross-sectional view of the high-temperature resistant filter proposed by the present utility model;

[0028] Figure 4 It is a side view structural diagram of a high-temperature resistant filter proposed by the present utility model

[0029] Figure 5 It is a front view structural diagram of a high-temperature resistant filter proposed by the present utility model.

[0030] In the figure: 1. Frame; 2. First flanging; 3. Filter element; 4. Filter paper; 5. Telescopic layer; 6. 350°-resistant sealant; 7. Cooling box; 8. Water injection port; 9. Drain pipe; 10. Valve; 11. Second flanging. Detailed implementation mode

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Embodiment 1

[0032] Refer to Figures 1-5 , a high-temperature resistant filter, comprising:

[0033] Frame 1;

[0034] First flanging 2, arranged inside the frame 1, and there are four first flangings 2;

[0035] Second flanging 11, arranged outside the frame 1;

[0036] Filter element 3, arranged inside the frame 1;

[0037] Filter paper 4, arranged inside the frame 1, and there are two layers of filter paper 4;

[0038] Telescopic layer 5, arranged between the two layers of filter paper 4;

[0039] 350°-resistant sealant 6, arranged inside the filter paper 4.

[0040] In this embodiment, one side of the first flanging 2 is provided with an inner flanging.

[0041] In this embodiment, the length of the inner flanging is 5 mm.

[0042] In this embodiment, a plurality of cooling boxes 7 are fixedly installed outside the frame 1.

[0043] In this embodiment, the tops of the plurality of cooling boxes 7 are fixedly communicated with a water injection port 8, and a sealing cover is provided on the water injection port 8.

[0044] In this embodiment, a drain pipe 9 is fixedly communicated with the cooling box 7, and a valve 10 is provided on the drain pipe 9;

[0045] In this embodiment, when the temperature remains high, the sealing cover is opened, and cold water is injected into the cooling box 7 through the water injection port 8, which can assist in cooling.

[0046] In this embodiment, 1. Replace the sealant material, use a fully imported special material sealant, the sealant has a temperature resistance of ≥400°, and can operate stably for a long time at a high temperature of 350°;

[0047] 2. An enhanced design framework is adopted. The increased size of the frame flange can strengthen the adhesion area of the assembly glue, thereby achieving overall stability. An inward turn of 5 mm is added to the end of the frame flange, enabling it to fasten the sealant and further strengthen its structure.

[0048] 3. A new design of a telescopic layer is made for the sealing structure. For products resistant to 350°, two layers of filter paper and a layer of highly efficient telescopic special material layer are added between the stainless-steel frame and the sealant, endowing the material with a certain degree of flexibility to avoid product failure caused by deformation due to material stress during the operation and cooling of the filter at 350° working conditions. Embodiment 2

[0049] The difference between this embodiment and Embodiment 1 lies in that a temperature sensor is installed on the frame 1 to monitor the temperature around the frame 1.

[0050] As described above, it is only the preferred specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and the inventive concept of the present utility model, with equivalent substitution or change, shall be covered by the protection scope of the present utility model.

Claims

1. A high temperature resistant filter, characterized in that: include: Frame (1); A first flange (2) is arranged in the frame (1), and four first flanges (2) are provided; A second flange (11) is arranged on the outer side of the frame (1); A filter element (3) is arranged in the frame (1); The filter paper (4) is arranged in the frame (1), and the filter paper (4) has two layers; A retractable layer (5) is disposed between two layers of filter paper (4); The 350° resistant sealant (6) is arranged on the inner side of the filter paper (4).

2. A high temperature resistant filter according to claim 1, characterized in that: One side of the first flange (2) is provided with an inward turn.

3. A high temperature resistant filter according to claim 2, characterized in that: The inversion length is 5 mm.

4. A high temperature resistant filter according to claim 3, characterized in that: A plurality of cooling boxes (7) are fixedly mounted on the outer side of the frame (1).

5. A high temperature resistant filter according to claim 4, characterized in that: The tops of the plurality of cooling boxes (7) are all fixedly connected to a water injection port (8), and a sealing cover is provided on the water injection port (8).

6. A high temperature resistant filter according to claim 5, characterized in that: The cooling box (7) is fixedly connected to a drainage pipe (9), and a valve (10) is provided on the drainage pipe (9).

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