An oil fume air filter

Abstract

The application discloses an oil fume air filter, which comprises a filter case, wherein the filter case is designed as a hollow structure, a filter assembly is detachably arranged in the filter case, a collecting assembly is arranged at the bottom of the filter case, the filter assembly comprises a filter core frame, a plurality of filter rows are arranged in the filter core frame, and a plurality of oil blocking wires are arranged in the filter row and are arranged at intervals on the same rack. The filter assembly formed by the plurality of filter rows is used to replace the existing filter screen and electric field structure, the oil fume removal efficiency is improved by 2% compared with the existing electric field structure, and the oil fume removal efficiency is as high as 97%. The traditional filter screen structure is abandoned, the air inlet amount of the windward surface is greatly improved, and the working load of the exhaust fan is reduced. The oil blocking wire made of stainless steel wire is used to replace the electrode plate in the prior art, the stainless steel wire is light in weight and is not easy to be corroded, so that the cleaning difficulty is greatly reduced. The installation mode of the bolt greatly reduces the difficulty of assembly and disassembly, and provides great convenience for maintenance and cleaning and maintenance work.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of oil fume filtering, and in particular to an oil fume air filter. BACKGROUND

[0002] The oil fume air filter refers to an oil fume exhaust treatment device, which is mainly used for purifying and treating kitchen low-altitude discharged oil fume. At present, many places in China are equipped with the oil fume air filter, such as hotels, restaurants, banquet halls, dining rooms, schools, government offices, factories and other places. The oil fume air filter is also used in food frying and cooking processing industries, and automobile exhaust emission treatment.

[0003] The existing oil fume air filter structure is provided with a mesh filter screen at the front windward surface, an electric field purifier at the middle section, and an air suction / exhaust device at the rear end to meet the technical purpose of removing oil fume and odor. The existing technical solution has the following practical disadvantages:

[0004] 1) The front windward surface is provided with a mesh filter screen. Although the fine mesh structure of the filter screen can preliminarily filter the oil fume particles in the oil mist, the mesh screen at the windward surface is blocked by the accumulated oil stains and particulate impurities, thereby greatly reducing the air intake and greatly increasing the working load of the exhaust fan, and the oil fume air filter body cannot play its due filtering effect.

[0005] 2) The electric field purifier in the middle section mostly uses sheet-shaped electrode plates. On the one hand, under the attachment of oil fume particles and oil stains, the space between the electrode plates is compressed, further reducing the air intake, and thus regular cleaning work is required. The cleaning process of the electric field mechanism using the electrode plates is complex, and the disassembly and assembly are extremely difficult. The cleaning of the electrode plates is also particularly difficult. At the same time, the purifier of this structure is large in size, high in price, and low in universality.

[0006] 3) In order to avoid bending caused by external force, the existing electric field purifier is usually provided with a certain thickness of plate inside. In order to reduce the weight, improve the convenience and stability of installation, and improve the cleaning efficiency, the internal plate is usually made of aluminum material plate. When the existing oil fume air filter is cleaned, the aluminum filter structure will react with the cleaning chemical solution, thereby causing corrosion of the profile and reducing the service life, and polluting the environment.

[0007] Therefore, it is necessary to propose a new oil fume air filter structure. SUMMARY

[0008] The oil fume air filter has the advantages of reasonable structure, large air inlet, easy disassembly and cleaning, and the like.

[0009] The technical scheme adopted by the oil fume air filter is as follows.

[0010] The oil fume air filter comprises a filter case, wherein the filter case is designed in a hollow manner, a filter assembly is detachably arranged in the filter case, a collecting assembly is arranged at the bottom of the filter case, the filter assembly comprises a filter core frame, a plurality of filter rows are arranged in the filter core frame, and each filter row comprises a plurality of oil blocking wires arranged at equal intervals.

[0011] Further, clamping grooves are arranged at intervals on the two sides of the filter case, clamping blocks are fixedly arranged at the two ends of the filter core frame, and the filter assembly is detachably arranged through interference fit of the clamping blocks and the clamping grooves.

[0012] Further, the oil blocking wire is a stainless steel wire in a straightened state, and the diameter of the oil blocking wire is preferably 0.3-0.5 mm, and the interval between adjacent oil blocking wires on the same filter row is preferably 2-8 mm.

[0013] Further, the interval between the front and rear adjacent filter rows is 6-12 mm.

[0014] Further, the adjacent oil blocking wires in the front and rear adjacent filter rows are arranged in a staggered manner, the axial interval between the front and rear adjacent oil blocking wires is equal to the diameter of the oil blocking wire, the adjacent oil blocking wires on the front and rear filter rows are arranged in a continuous staggered manner and have the same staggered direction, until the oil blocking wire on the rear filter row contacts the inner side wall of one side of the filter case, the oil blocking wire on the rear filter row is reversely staggered, until the oil blocking wire on the rear filter row contacts the inner side wall of the other side of the filter case, the oil blocking wire on the rear filter row is reversely staggered again, and the arrangement is sequentially continued.

[0015] Further, the collecting device comprises an oil collecting groove fixedly arranged at the bottom of the filter case, and a filter screen is arranged in the oil collecting groove.

[0016] The oil fume air filter has the advantages of reasonable structure, large air inlet, easy disassembly and cleaning, and the like.

[0017] 1) The front and rear filter single rows of the present application are arranged in staggered manner, so that the windward channel formed by the multiple filter single rows is longer and the air inlet is larger; each single oil blocking wire arranged in staggered manner can achieve a relatively ideal oil removal effect; experiments have proved that, compared with the existing electric field structure, the oil fume air filter equipped with the structure of the present application can increase the oil fume removal efficiency by 2%, and the oil fume removal efficiency is as high as 97%; since the traditional filter screen structure is abandoned, the air inlet of the windward surface is greatly improved, thereby reducing the working load of the exhaust fan;

[0018] 2) The oil blocking wire is made of stainless steel wire, which is light in weight and not easy to corrode; meanwhile, the pipe diameter of 0.5 mm greatly reduces the cleaning difficulty; meanwhile, the filter single row composed of multiple oil blocking wires is fixed in the filter core frame, and the overall filter core frame is installed in the filter case in the form of a latch, which greatly reduces the difficulty of assembly and disassembly, and provides great convenience for maintenance and cleaning work;

[0019] 3) The oil fume air filter of the present application can be installed in the existing oil fume purifier provided with an electric field, and since it has good oil fume filtering effect, it can reduce or avoid the influence of oil fume accumulation on the working efficiency of the electrode plate; it can also be directly arranged in a general air filter as a filter core to achieve the oil fume filtering effect. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a perspective view of the present application;

[0021] Figure 2 is another perspective view of the present application from another angle;

[0022] Figure 3 is an exploded view of the present application;

[0023] Figure 4 is a perspective view of the filter assembly in the present application;

[0024] Figure 5 is a front view of Figure 4 ;

[0025] Figure 6 is a partial enlarged view of A in Figure 5 ;

[0026] Wherein: 1, filter case; 2, filter assembly; 3, collection assembly; 201, filter core frame; 202, filter single row; 2020, oil blocking wire; 101, clamping groove; 2010, clamping block; 301, oil collection groove; 302, filter screen; in addition: A1, first filter single row; A2, second filter single row; A3, third filter single row; A4, fourth filter single row; A5, fifth filter single row. DETAILED DESCRIPTION

[0027] The specific embodiments of the present application are described below with reference to the accompanying drawings.

[0028] As Figures 1-4 shown in the embodiment, an oil fume air filter comprises a filter case 1, the filter case 1 is designed as a hollow, a filter assembly 2 is detachably installed inside the filter case 1, a collection assembly 3 is arranged at the bottom of the filter case 1, the filter assembly 2 comprises a filter core frame 201, a plurality of filter rows 202 are arranged inside the filter core frame 201, each filter row 202 comprises a plurality of oil blocking wires 2020 arranged at equal intervals; in the embodiment, 30 filter rows 202 are arranged in front and back, only part of the structure of the embodiment is shown in the drawing, and 11 oil blocking wires 2020 are arranged on a single filter row 202 to meet the filtering requirement of a large windward area.

[0029] As Figure 3 shown in the embodiment, clamping grooves 101 are arranged at intervals on both sides of the filter case 1, clamping blocks 2010 are fixedly arranged at the ends of the filter core frame 201, the filter assembly 2 is detachably installed through interference fit of the clamping blocks 2010 and the clamping grooves 101, thereby realizing overall disassembly and replacement of the filter assembly 2, a plurality of filter assemblies 2 can be arranged in a single oil fume air filter, and the connection of the rapid work requirement is realized through overall replacement, thereby avoiding the situation of idling due to long-term conventional cleaning.

[0030] As Figure 3 , Figure 4 and Figure 6 shown in the embodiment, the oil blocking wire 2020 is preferably made of stainless steel wire, the diameter of the oil blocking wire 2020 is preferably 0.5 mm, and the distance between adjacent oil blocking wires on the same filter row is preferably 5 mm, so that the oil blocking wire 2020 has a certain mechanical strength, and the oil blocking wire 2020 with the pipe diameter can meet the efficient oil removal effect under the large windward area filtering requirement in the embodiment. The oil blocking wire 2020 made of stainless steel wire replaces the electrode plate in the prior art, and the stainless steel wire is light in weight and not easy to corrode; at the same time, the pipe diameter of 0.5 mm greatly reduces the cleaning difficulty; at the same time, the filter row 202 composed of a plurality of oil blocking wires 2020 is fixedly arranged in the filter core frame 201, and the overall filter core frame 201 is installed in the filter case 1 through the installation of the bolt, thereby greatly reducing the difficulty of assembly and disassembly, and providing great convenience for maintenance and cleaning work.

[0031] As Figure 1 , Figure 3 and Figure 6In the shown embodiment, the interval between the front and rear adjacent filter rows 202 is 10 mm, and in this embodiment, the 10 mm interval between the filter rows 202 can form a stable elongated air inlet channel, and by arranging the filter rows 202 in a staggered manner, compared with the traditional straight-out windward channel, the filter density can be increased while ensuring sufficient air flow space, avoiding the traditional clogging problem; by replacing the existing filter screen + electric field structure with the filter assembly 2 formed by multiple groups of filter rows 202, the front and rear filter rows 202 of the present application are arranged in a staggered manner, so that the windward channel formed by multiple filter rows 202 is longer and the air inlet is larger; by arranging each single oil blocking wire 2020 in a staggered manner, a relatively ideal oil removal effect can be achieved; experiments have proved that: compared with the existing electric field structure, the oil smoke air filter equipped with the structure of the present application has an oil smoke removal efficiency of 2%, and the oil smoke removal efficiency is as high as 97%; the test conditions of the above data are: the oil smoke air filter of the present application adopts 40 groups of filter rows, the diameter of the oil blocking wire is 0.5 mm, the interval between the adjacent oil blocking wires on the same filter row is 5 mm, and the interval between the front and rear adjacent filter rows is 10 mm; the oil smoke air filter of the present application is arranged on the pipeline of the oil smoke filtering pipeline as a filter assembly; as a control, the oil smoke purifier with an electric field with a specification of 480*485*290(mm) of Hebei Star Environmental Protection Equipment Co., Ltd. is installed on the pipeline of the oil smoke filtering pipeline as a filter assembly; both of them process oil-containing gas under the same conditions, the pipeline diameter and the air inlet are the same. Since the traditional filter screen structure is abandoned, the air inlet of the windward surface is greatly improved, thereby reducing the working load of the exhaust fan. Figure 3 、 Figure 4 and Figure 5In the shown embodiment, the first filter row A1, the second filter row A2, the third filter row A3, the fourth filter row A4 and the fifth filter row A5 are arranged in front of and behind each other with a spacing of 10 mm between adjacent filter rows 202, and the axial spacing between the front and rear adjacent oil blocking wires 2020 is equal to the diameter of the body of the oil blocking wire 2020, i.e. 0.5 mm. The front and rear adjacent oil blocking wires are the two closest oil blocking wires on adjacent filter rows, for example, the first oil blocking wire on the left of the first filter row A1 and the second filter row A2 is the front and rear adjacent oil blocking wire. The filter assembly 2 composed of 30 groups of filter rows 202 has a structure of tight and air-tight structure from the front end of the filter assembly 2, i.e. the front end, because the axial spacing between the front and rear adjacent oil blocking wires 2020 is equal to the diameter of the body of the oil blocking wire 2020. In fact, the ventilation space in the purification module 2 is very large, and the passing oil fume is basically not hindered. When the oil fume passes through the filter assembly 2, the oil particles with high adhesion can have more opportunities to contact and adhere to the oil blocking wires. According to the arrangement that the spacing between the filter rows is 8-10 mm, the spacing between the adjacent oil blocking wires on the same filter row is 3-5 mm, and the axial spacing between the front and rear adjacent oil blocking wires is equal to the diameter of the body of the oil blocking wire, a complete oil blocking module can be formed by every 6-10 filter rows, and the oil blocking wires on each filter row can form a tight structure from the air inlet end. The existence of 3-5 oil blocking modules in the oil fume purification channel composed of 30 groups of filter rows can make the oil fume pass through multiple oil blocking, so that the oil in the oil fume can be effectively adhered and filtered out when passing through the oil fume air filter of the present application.

[0032] As shown in Figure 1 , Figure 2 and Figure 3 , the collecting device includes an oil collecting groove 301 fixed on the bottom of the filter case 1, and a filter screen 302 is arranged in the oil collecting groove 301, thereby facilitating the recovery, filtration and treatment of the oil and dirt particles filtered by the filter assembly 2.

[0033] The oil fume air filter of the present application can be directly arranged in a common air filter as a filter core, directly installed on the pipeline of the existing oil fume filtering pipeline, and can realize the filtering function of oil fume. It can also be installed on the pipeline of the existing oil fume air filter structure with an electric field purifier, and the oil fume air filter of the present application is installed at the front end of the electric field purifier, which can well realize the filtering of oil fume, greatly reduce or avoid the adhesion of oil fume on the electrode plate, and fully play the role of electric field deodorization and purification. The oil fume air filter of the present application is convenient to disassemble, clean and has high practicability and wide application range.

[0034] The above description is an explanation of the present application, not a limitation of the present application, the scope of the present application is defined by the claims, within the protection scope of the present application, any form of modification can be made.

Claims

1. An oil fume air filter comprising a filter casing (1), characterized in that: The filter case (1) is hollow, the inside of the filter case (1) is detachably installed with a filter assembly (2), the bottom of the filter case (1) is provided with a collecting assembly (3), the filter assembly (2) comprises a filter core frame (201), the inside of the filter core frame (201) is provided with a plurality of groups of filter single rows (202), each group of filter single rows (202) comprises a plurality of oil-blocking wires (2020) which are arranged at equal intervals; The adjacent oil-blocking wires (2020) in the front and rear adjacent filter single rows (202) are staggered, the axial spacing of the front and rear adjacent oil-blocking wires (2020) is equal to the diameter value of the oil-blocking wire (2020) body, the adjacent oil-blocking wires on the front and rear filter single rows (202) are continuously staggered and the staggered directions are the same; The oil-blocking wire (2020) is a stainless steel filament in a straightened state, the spacing between the adjacent oil-blocking wires (2020) on the same filter single row (202) is 2-8 mm.

2. An oil smoke air filter as claimed in claim 1, wherein: The two sides of the filter case (1) are provided with clamping grooves (101) at intervals, the two end portions of the filter core frame (201) are fixedly provided with clamping blocks (2010), and the filter assembly (2) is detachably installed through the interference fit of the clamping blocks (2010) and the clamping grooves (101).

3. An oil smoke air filter as claimed in claim 1, wherein: The spacing between the front and rear adjacent filter single rows (202) is 6-12 mm.

4. An air filter according to claim 1, wherein: The collecting assembly (3) comprises an oil collecting groove (301) fixedly arranged at the bottom of the filter case (1), and the inside of the oil collecting groove (301) is provided with a filter screen (302).

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