Self-cleaning filtering device

Abstract

The utility model relates to a self-cleaning filtering device. The self-cleaning filtering device comprises a filter cartridge, a filter element, an air outlet barrel, a dust suction pipe and a heating wire, air inlets are formed in the two sides of the filter cartridge, and an air outlet is formed in the bottom of the filter cartridge. And the filter element is rotatably arranged in the filter cartridge. The air outlet cylinder is arranged at the air outlet and located in the filter cylinder, and one end of the filter element is rotatably arranged in the air outlet cylinder. The end part of the dust suction pipe extends into the filter cartridge and is provided with a plurality of dust suction grooves in the circumferential direction, and the dust suction grooves are used for performing dust suction cleaning on the rotatable filter element. The heating wire is arranged on the inner wall of the filter cartridge and is used for heating and drying air entering the filter cartridge. The filter element is rotatably arranged in the filter cartridge, attached dust is uniformly shaken off through rotary motion, the dust suction pipe is combined with rotation of the filter element to achieve dynamic dust suction and cleaning, residual dust is further removed, and the filter element is prevented from being blocked; a heating wire is arranged on the inner wall of the filter cartridge to heat and dry entering air, so that dust and water can be prevented from being combined to form an adhesive, and the filtering efficiency and the service life of the filter element are guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to centrifugal compressor air filter technical field, concretely relates to a self-cleaning filter device. BACKGROUND

[0002] Traditional centrifugal compressor air filter usually adopts filter bag or filter core as filter medium, and carries out cleaning to filter core through the way of blowing dust in reverse. Specifically, in the process of dust cleaning, the nozzle blows high-pressure air into the filter core, and the dust adhered to the surface of the filter core is shaken off by the impact force of the airflow, so as to realize the regeneration and reuse of the filter bag.

[0003] However, due to the large length of the filter core, the high-pressure air is not evenly distributed in the filter core, resulting in unsatisfactory dust cleaning effect. Especially at the far end of the filter core, the airflow intensity is insufficient, and it is difficult to effectively remove the dust adhered to the filter core. Secondly, under humid weather conditions, dust is easy to combine with moisture in the air to form sticky substances and adhere firmly to the surface of the filter core. Such sticky dust is difficult to be shaken off by the way of blowing dust in reverse, resulting in gradual clogging of the filter core and reducing the filtering efficiency and service life of the filter core. SUMMARY

[0004] The utility model discloses a self-cleaning filter device, which can rotate the filter core in the filter cylinder, uniformly shake off the adhered dust by rotating motion, solve the problem of uneven airflow distribution and poor dust cleaning effect in the traditional reverse dust blowing method, extend the dust suction pipe into the filter cylinder and open the dust suction groove, realize dynamic dust suction cleaning by combining the rotation of the filter core, further remove the residual dust and avoid clogging of the filter core. The heating wire is arranged on the inner wall of the filter cylinder to heat and dry the entering air, which can prevent the combination of dust and moisture to form sticky substances under humid weather conditions and ensure the filtering efficiency and service life of the filter core.

[0005] To achieve the above-mentioned purpose, the utility model provides a self-cleaning filter device, which comprises:

[0006] The filter cylinder is provided with an air inlet on both sides, and an air outlet is opened at the bottom of the filter cylinder;

[0007] The filter core is rotatably arranged in the filter cylinder;

[0008] The air outlet cylinder is arranged at the air outlet and located in the filter cylinder, and one end of the filter core is rotatably arranged in the air outlet cylinder;

[0009] The dust suction pipe extends into the filter cylinder at the end, a plurality of dust suction grooves are opened along the circumference of the dust suction pipe, and the dust suction pipe is used for dust suction cleaning of the rotatable filter core;

[0010] Heating wires are arranged on the inner wall of the filter cartridge for heating and drying the air entering the filter cartridge.

[0011] Optionally, the self-cleaning filter device further comprises:

[0012] A mounting cover is detachably arranged on the filter cartridge opening;

[0013] A rotating assembly is arranged on the side of the mounting cover facing the filter cartridge for driving the filter core to rotate.

[0014] Optionally, the rotating assembly comprises:

[0015] A rotating table is rotatably arranged on the mounting cover, and a large gear is sleeved on the rotating table;

[0016] A driving motor is arranged on the mounting cover, a small gear is sleeved on the movable end of the driving motor, and the small gear is engaged with the large gear to drive the rotating table to rotate;

[0017] A fixing frame is arranged on the rotating table, and the fixing frame is inserted into the filter core to fix the filter core.

[0018] Optionally, the fixing frame has an inverted U-shaped structure.

[0019] Optionally, a fixing bolt is arranged on the fixing frame, and the fixing bolt cooperates with the fixing frame to lock and fix the end portion of the filter core.

[0020] Optionally, the dust suction pipe extends outwards through the mounting cover and is connected with the fan.

[0021] The beneficial effects of the present application are as follows: the filter core is rotatably arranged in the filter cartridge, and the adhered dust is uniformly shaken off by using the rotary motion, thereby solving the problems of uneven airflow distribution and poor dust cleaning effect in the traditional reverse dust blowing mode; the dust suction pipe extends into the filter cartridge and is provided with a dust suction groove, and dynamic dust suction cleaning is realized in combination with the rotation of the filter core, thereby further removing the residual dust and avoiding the blockage of the filter core; the heating wires are arranged on the inner wall of the filter cartridge for heating and drying the entering air, thereby preventing the dust and moisture from combining to form adhering substances under humid climate, and ensuring the filtering efficiency and service life of the filter core.

[0022] The above description is only a summary of the technical scheme of the present application, in order to more clearly understand the technical means of the present application, and the content of the specification can be implemented, the following will be described in detail with the preferred embodiments of the present application and the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 Fig. 1 is a schematic structural view of a self-cleaning filter device according to an embodiment of the present application;

[0024] Figure 2 Fig. 1 is a schematic structural view of a rotating assembly of a self-cleaning filter device according to an embodiment of the present application;

[0025] Figure 3 Fig. 2 is a schematic structural view of a fixing frame of a self-cleaning filter device according to an embodiment of the present application;

[0026] In the figure: 1, filter cylinder; 11, air inlet; 12, air outlet; 2, filter core; 3, air outlet cylinder; 4, dust suction pipe; 5, heating wire; 6, mounting cover; 7, rotating assembly; 71, rotating table; 72, driving motor; 73, fixing frame; 731, fixing bolt; 74, large gear; 75, small gear. DETAILED DESCRIPTION

[0027] The technical solutions of the present application will be described clearly and completely below with reference to the drawings. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0028] In the description of the present application, it should be noted that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0029] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances. In addition, the technical features involved in the different embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.

[0030] Please refer to Figure 1 and Figure 2A self-cleaning filter device according to an embodiment of the present application comprises a filter cylinder 1, a filter core 2, an air outlet cylinder 3, an ash suction pipe 4 and a heating wire 5. The filter cylinder 1 is provided with air inlets 11 on both sides, and the filter cylinder 1 is provided with an air outlet 12 at the bottom. The filter core 2 is rotatably arranged in the filter cylinder 1. The air outlet cylinder 3 is arranged at the air outlet 12 and located in the filter cylinder 1, and one end of the filter core 2 is rotatably arranged in the air outlet cylinder 3. The ash suction pipe 4 extends into the filter cylinder 1 at the end, and the ash suction pipe 4 is provided with a plurality of ash suction grooves in the circumferential direction, and the ash suction pipe 4 is used for cleaning the rotatable filter core 2. The heating wire 5 is arranged on the inner wall of the filter cylinder 1, and is used for heating and drying the air entering the filter cylinder 1.

[0031] According to the scheme of the embodiment of the present application, the filter core 2 is rotatably arranged in the filter cylinder 1, and the adhered dust is uniformly shaken off by rotating motion, solving the problems of uneven airflow distribution and poor dust cleaning effect in the traditional reverse blowing dust method. The ash suction pipe 4 extends into the filter cylinder 1 and is provided with ash suction grooves, and the dynamic ash cleaning is realized by combining the rotation of the filter core 2, further removing the residual dust, and avoiding the blockage of the filter core 2. The heating wire 5 is arranged on the inner wall of the filter cylinder 1, and is used for heating and drying the entering air, which can prevent the dust and moisture from combining to form adhering objects in humid climate, and ensure the filtering efficiency and service life of the filter core 2. It should be noted that the filter device enters air from the air inlet 11, and the filtered air flows from the air outlet cylinder 3 and the air outlet 12 to the centrifugal compressor. By regularly setting the filter core 2 to rotate and shake off dust and collect dust by the ash suction pipe 4, the effect of cleaning the filter core 2 is achieved.

[0032] The following will be described in detail with specific embodiments:

[0033] In the embodiment, at least two self-cleaning filter devices can be provided for a single compressor, and when one filter device is working for self-cleaning, the other filter device can work normally.

[0034] Please refer to Figure 1 and Figure 2 The self-cleaning filter device further comprises a mounting cover 6 and a rotating assembly 7. The mounting cover 6 is detachably arranged at the cylinder opening of the filter cylinder 1. The rotating assembly 7 is arranged on the side of the mounting cover 6 facing the filter cylinder 1, and is used for driving the filter core 2 to rotate. The detachable design of the mounting cover 6 facilitates quick opening of the filter cylinder 1, replacement or maintenance of the filter core 2, and reduces downtime. The rotating assembly 7 drives the filter core 2 to rotate, and can realize the self-cleaning function by dynamically cleaning the surface of the filter core 2 in cooperation with the ash suction pipe 4 during the filtering process, prolong the service life of the filter core 2, and reduce the frequency of manual cleaning. Specifically, in the embodiment, the mounting cover 6 is connected with the filter cylinder 1 by bolts.

[0035] Please refer to Figure 2The rotating assembly 7 comprises a rotating table 71, a driving motor 72 and a fixing frame 73. The rotating table 71 is rotatably arranged on the mounting cover 6, and a large gear 74 is arranged on the rotating table 71. The driving motor 72 is arranged on the mounting cover 6, and a small gear 75 is arranged on the driving motor 72. The small gear 75 and the large gear 74 are engaged to drive the rotating table 71 to rotate. The fixing frame 73 is arranged on the rotating table 71, and the fixing frame 73 is inserted into the filter element 2 to fix the filter element 2. Through the engagement of the small gear 75 and the large gear 74, the high speed and low torque of the driving motor 72 is converted into low speed and high torque of the rotating table 71, so that the filter element 2 is stably rotated.

[0036] Please refer to Figure 3 The fixing frame 73 is in an inverted U-shaped structure. The fixing frame 73 is provided with a fixing bolt 731, and the fixing bolt 731 cooperates with the fixing frame 73 to lock and fix the end portion of the filter element 2. The inverted U-shaped structure provides symmetrical supporting force, so that the filter element 2 is uniformly stressed during rotation, and deformation or rupture of the filter element 2 caused by unilateral stress concentration is avoided. By tightening the fixing bolt 731, the end portion of the filter element 2 is tightly connected with the fixing frame 73, so that the filter element 2 is prevented from being pulled out during high-speed rotation or vibration, and the operation safety is ensured.

[0037] The dust suction pipe 4 penetrates through the mounting cover 6 and extends outward to be connected with the fan. During the rotation and cleaning of the filter element 2, the fan sucks the dust and impurities falling off through the dust suction pipe 4, so that the pollutants are prevented from being reattached to the surface of the filter element 2 or falling into the filter cartridge 1, and the closed-loop treatment of the cleaning process is realized. Specifically, in the embodiment, the filter element 2 is arranged horizontally, the dust suction grooves on the dust suction pipe 4 are in a long strip-shaped structure, and the dust suction grooves are arranged towards the filter element 2 and the lower direction, respectively, so that the dust falling off from the filter element 2 can be better collected and cleaned.

[0038] The technical features of the above-described embodiments can be combined arbitrarily. In order to make the description simple, all possible combinations of the technical features in the above-described embodiments are not described, but as long as the combinations of the technical features do not exist, they should be considered as the scope of the description.

[0039] The above-described embodiments only express several implementation manners of the utility model, and the description is relatively specific and detailed, but it should not be understood as a limitation on the scope of the utility model patent. It should be pointed out that for ordinary skilled persons in the art, some modifications and improvements can be made without departing from the concept of the utility model, and these all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent should be subject to the appended claims.

Claims

1. A self-cleaning filter apparatus, characterized by, The utility model relates to a filter cartridge, and more particularly to a filter cartridge with a rotating filter core and a rotating cleaning mechanism. The filter cartridge comprises: a filter cartridge with air inlets on both sides, and an air outlet on the bottom of the filter cartridge; a filter core rotatably arranged in the filter cartridge; an air outlet cylinder arranged in the filter cartridge at the air outlet, and one end of the filter core rotatably arranged in the air outlet cylinder; a dust suction pipe with its end part extending into the filter cartridge, and a plurality of dust suction grooves circumferentially arranged on the dust suction pipe, the dust suction pipe being used for cleaning the rotatable filter core; 2. The self-cleaning filter apparatus of claim 1, wherein, heating wires arranged on the inner wall of the filter cartridge, and used for heating and drying the air entering the filter cartridge. The utility model further comprises: a mounting cover detachably arranged at the opening of the filter cartridge; 3. The self-cleaning filter apparatus of claim 2, wherein, a rotating assembly arranged on the side of the mounting cover facing the filter cartridge, and used for rotating the filter core. The rotating assembly comprises: a rotating table rotatably arranged on the mounting cover, and a large gear sleeved on the rotating table; a driving motor arranged on the mounting cover, and a small gear sleeved on the movable end of the driving motor, the small gear being engaged with the large gear to rotate the rotating table; 4. The self-cleaning filter apparatus of claim 3, wherein, a fixing frame arranged on the rotating table, and inserted into the filter core to fix the filter core.

5. The self-cleaning filter apparatus of claim 4, wherein, The fixing frame has an inverted U-shaped structure.

6. The self-cleaning filter apparatus of claim 2, wherein, The fixing frame is provided with a fixing bolt, and the fixing bolt cooperates with the fixing frame to lock and fix the end part of the filter core. The dust suction pipe extends outward through the mounting cover and is connected with a fan.

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