Filtering device for air pretreatment

Abstract

The utility model discloses a filtering device for air pretreatment, which comprises a pipe body, an air inlet pipe is fixedly arranged on the outer wall of the pipe body close to the bottom end in a penetrating manner, the top end of the pipe body is connected with a top cover through a flange, an air outlet pipe is fixedly arranged in the center of the top of the top cover in a penetrating manner, and a blowback pipe is fixedly arranged on the outer wall of the air outlet pipe in a penetrating manner. An electromagnetic pulse valve is mounted on the blowback pipe, and one end, positioned in the pipe body, of the air outlet pipe is detachably connected with a filter cartridge; when the dust collector is used, air enters the pipe body from the air inlet pipe, is filtered by the filter holes and then is output by the air outlet pipe, and after the dust collector is used for a period of time, the induced draft fan, the valves at the end parts of the air inlet pipe and the air outlet pipe are closed, and then the dust discharging ball valve and the electromagnetic pulse valve are opened, so that high-pressure air in the high-pressure air source can be reversely blown into the pipe body. The dust discharging ball valve is arranged on the dust hopper to blow off dust impurities blocked on the filter holes, and dust accumulated in the dust hopper is discharged from the dust discharging ball valve, so that the maintenance period of the filter cartridge is effectively prolonged, and the use effect is good.

Description

TECHNICAL FIELD

[0001] The utility model relates to a filter device, specifically air pretreatment filter device. BACKGROUND

[0002] Air usually contains a large amount of dust, particulate matter, bacteria and other impurities, and for some special places and equipment, the imported air needs to be pretreated.

[0003] At present, the air pretreatment usually includes filtering, dehumidification and temperature regulation, wherein the filtering usually adopts various filter screens or filter cartridges with different pore sizes, when the filtering equipment is used for a period of time, the dust impurities in the air can easily block the filter holes, resulting in poor ventilation of the filtering equipment, and the filter screen or filter cartridge needs to be frequently taken out for cleaning, which is inconvenient to use and needs to be improved. UTILITY MODEL CONTENT

[0004] The utility model aims at providing an air pretreatment filter device to solve the problems in the above background.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] An air pretreatment filter device, comprising a pipe body, an air inlet pipe is fixedly arranged on the outer wall of the pipe body near the bottom end, a top cover is connected to the top end flange of the pipe body, an air outlet pipe is fixedly arranged on the top center of the top cover, an air outlet pipe is fixedly arranged on the outer wall of the air outlet pipe, and an electromagnetic pulse valve is installed on the air outlet pipe, a filter cartridge is detachably connected to one end of the pipe body inside the air outlet pipe, a plurality of filter holes are arranged through the outer peripheral wall of the filter cartridge, a dust hopper is connected to the bottom end flange of the pipe body, and a ball valve is fixedly installed on the bottom end of the dust hopper.

[0007] As a further scheme of the utility model: the air outlet end of the air outlet pipe is coaxially arranged with the air outlet pipe, and the air outlet of the air outlet pipe faces the pipe body.

[0008] As a further scheme of the utility model: a plurality of sealing rings are nested on the outer wall of the pipe body inside the air outlet pipe, the top end of the filter cartridge is sleeved on the air outlet pipe, the outer wall of the sealing ring is attached to the inner wall of the top end of the filter cartridge, and the filter holes are all located below the air outlet pipe.

[0009] As a further scheme of the utility model: the inner wall of the dust hopper is fixedly connected with a supporting plate through a plurality of connecting rods, and the bottom end of the filter cartridge abuts against the top of the supporting plate.

[0010] As a further scheme of the utility model: the air outlet end of the air inlet pipe is tangent to the outer peripheral wall of the pipe body, and the air outlet of the air inlet pipe is inclined upward.

[0011] As a further scheme of the utility model: the air inlet end of the air inlet pipe and the air outlet end of the air outlet pipe are both provided with valves.

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] In use, air enters the pipe body through the air inlet pipe, is filtered through the filter holes and is output through the air outlet pipe, after a period of use, the induced draft fan, the air inlet pipe and the air outlet pipe are closed, and then the ash removal ball valve and the electromagnetic pulse valve are opened, high-pressure gas in the high-pressure gas source is blown into the pipe body in reverse, dust and impurities clogging the filter holes are blown off, and dust accumulated in the ash hopper is discharged through the ash removal ball valve, thereby effectively prolonging the maintenance cycle of the filter cartridge and achieving good use effect. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a structural schematic view of a filter device for air pretreatment.

[0015] Figure 2 It is a sectional view. Figure 1

[0016] Figure 3 It is an enlarged view of A in the figure. Figure 2

[0017] Among them, the pipe body 1, the air inlet pipe 2, the top cover 3, the air outlet pipe 4, the sealing ring 5, the back flushing pipe 6, the electromagnetic pulse valve 7, the filter cartridge 8, the filter hole 9, the ash hopper 10, the supporting plate 11, the ash removal ball valve 12. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0019] Please refer to Figures 1 to 3 ​​The utility model discloses an air pretreatment filter device, including the tubular body 1, the tubular body 1's outer wall is close to the fixed penetration of the bottom end place and is equipped with the air inlet pipe 2, the top flange of tubular body 1 is connected with the top cover 3, and the top center of top cover 3 is fixed and is equipped with the air outlet pipe 4 of penetration, the outer wall fixed penetration of air outlet pipe 4 is equipped with the back flushing pipe 6, and the electromagnetic pulse valve 7 is installed on back flushing pipe 6, and the air inlet end of back flushing pipe 6 is connected with high pressure gas source, the one end detachable connection of air outlet pipe 4 in tubular body 1 is equipped with filter cartridge 8, the outer wall of filter cartridge 8 is equipped with a plurality of filter holes 9, the bottom flange of tubular body 1 is connected with hopper 10, the bottom fixed mounting of hopper 10 is equipped with the ash ball valve 12 of unloading, the air inlet end of air inlet pipe 2 is equipped with the valve, and the air outlet end of air outlet pipe 4 is connected with the induced draft fan through the valve.

[0020] The utility model discloses an air pretreatment filter device, including the tubular body 1, the tubular body 1's outer wall is close to the fixed penetration of the bottom end place and is equipped with the air inlet pipe 2, the top flange of tubular body 1 is connected with the top cover 3, and the top center of top cover 3 is fixed and is equipped with the air outlet pipe 4 of penetration, the outer wall fixed penetration of air outlet pipe 4 is equipped with the back flushing pipe 6, and the electromagnetic pulse valve 7 is installed on back flushing pipe 6, and the air inlet end of back flushing pipe 6 is connected with high pressure gas source, the one end detachable connection of air outlet pipe 4 in tubular body 1 is equipped with filter cartridge 8, the outer wall of filter cartridge 8 is equipped with a plurality of filter holes 9, the bottom flange of tubular body 1 is connected with hopper 10, the bottom fixed mounting of hopper 10 is equipped with the ash ball valve 12 of unloading, the air inlet end of air inlet pipe 2 is equipped with the valve, and the air outlet end of air outlet pipe 4 is connected with the induced draft fan through the valve.

[0021] Specifically combined Figure 2 In an embodiment of the utility model, the air outlet end of back flushing pipe 6 is coaxial with air outlet pipe 4, and the air outlet of back flushing pipe 6 faces tubular body 1.

[0022] Specifically combined Figure 3 In an embodiment of the utility model, the outer wall of air outlet pipe 4 in tubular body 1 is nested with multiple sealing rings 5, the top end of filter cartridge 8 is sleeved on air outlet pipe 4, and the outer wall of sealing ring 5 is attached to the inner wall of the top end of filter cartridge 8, and filter holes 9 are all below air outlet pipe 4.

[0023] Through the setting of sealing ring 5, the sealing connection between the inner wall of the top end of filter cartridge 8 and air outlet pipe 4 can be realized, so that air can be effectively prevented from entering air outlet pipe 4 through the gap between the two, to ensure the filtering effect of air, and filter cartridge 8 is easy to disassemble and assemble on air outlet pipe 4.

[0024] Specifically combined Figure 2 In an embodiment of the utility model, the inner wall of hopper 10 is fixedly connected with a supporting plate 11 through multiple connecting rods, and the bottom end of filter cartridge 8 abuts against the top of supporting plate 11.

[0025] Through the setting of the supporting plate 11, the bottom end of the filter cartridge 8 can be supported, so that the filter device is prevented from falling off from the air outlet pipe 4 during use.

[0026] Specifically combined Figure 2 In an embodiment of the present application, the air outlet end of the air inlet pipe 2 is tangent to the outer peripheral wall of the pipe body 1, and the air outlet of the air inlet pipe 2 is inclined upward.

[0027] Since the air outlet end of the air inlet pipe 2 is tangent to the pipe body 1, and the air outlet is inclined upward, after the air enters the pipe body 1 from the air inlet pipe 2, it will flow upward along the inner wall of the pipe body 1, so as to be more evenly distributed on the outside of the filter cartridge 8.

[0028] Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacements to some of the technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. An air pre-treatment filter device, characterized by: The utility model provides a kind of air filter, including pipe body (1), the outer wall of pipe body (1) is fixed with gas inlet pipe (2) near bottom end, the top flange of pipe body (1) is connected with top cover (3), and the top center of top cover (3) is fixed with gas outlet pipe (4), the outer wall of gas outlet pipe (4) is fixed with backflush pipe (6), and electromagnetic pulse valve (7) is installed on backflush pipe (6), one end of gas outlet pipe (4) in pipe body (1) is detachably connected with filter cartridge (8), the outer wall of filter cartridge (8) is provided with a plurality of filter holes (9), the bottom flange of pipe body (1) is connected with hopper (10), and the bottom of hopper (10) is fixedly installed with ash ball valve (12).

2. The filter device for air pre-treatment according to claim 1, characterized in that: The gas outlet end of the backflush pipe (6) is coaxially arranged with the gas outlet pipe (4), and the gas outlet of the backflush pipe (6) faces the pipe body (1).

3. The filter device for air pre-treatment according to claim 1, characterized in that: The outer wall of the gas outlet pipe (4) in the pipe body (1) is nested with a plurality of sealing rings (5), the top end of the filter cartridge (8) is sleeved on the gas outlet pipe (4), and the outer wall of the sealing ring (5) is in contact with the inner wall of the top end of the filter cartridge (8), and the filter holes (9) are all located below the gas outlet pipe (4).

4. The filter device for air pre-treatment according to claim 3, characterized in that: The inner wall of the hopper (10) is fixedly connected with a supporting plate (11) through a plurality of connecting rods, and the bottom end of the filter cartridge (8) abuts against the top of the supporting plate (11).

5. The filter device for air pre-treatment according to claim 1, characterized in that: The gas outlet end of the gas inlet pipe (2) is tangent to the outer peripheral wall of the pipe body (1), and the gas outlet of the gas inlet pipe (2) is inclined upward.

6. The filter device for air pre-treatment according to claim 1, characterized in that: Valves are installed on the gas inlet end of the gas inlet pipe (2) and the gas outlet end of the gas outlet pipe (4).

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