CN203790726U - Oil-mist purifier with silencing structure - Google Patents

Abstract

An oil mist purifier with a noise reduction structure includes a housing, a fan baffle, a filtration system, and an aerodynamic system. The fan baffle is welded inside the housing, dividing the housing into an upper and lower section. The filtration system is located in the lower section, and the aerodynamic system is located in the upper section. The filtration system is fixed to the inner shell of the lower section of the housing via a slide rail. The filtration system consists of a primary filter, a secondary filter, and a tertiary filter installed sequentially from bottom to top on the slide rail. The filtration system, along with one side and the bottom of the inner shell of the housing, forms a hollow buffer cavity. An air inlet is installed on the outer shell of the housing on this side, and an oil drain is installed on the outer shell of the housing on the other side. The buffer cavity is connected to the air inlet, the filtration system, and the oil drain, respectively. This invention eliminates the need for an additional silencer, saving on equipment installation and maintenance costs, and solving the problem of excessive noise from oil mist purification equipment in workshops.

Description

Oil mist purifier with sound-absorbing structure

technical field

The utility model relates to an oil mist purifier, in particular to an oil mist purifier with a sound-absorbing structure.

Background technique

With the continuous development of the economy, more and more industrial machinery is used in large quantities. During metal processing such as turning, milling, drilling and grinding, the use of metal cutting fluid will form a large number of oil mist particles in the air. Long-term work in such In the environment, oil mist particles will be adsorbed in the lungs of the human body, which greatly endangers the health of workers. In order to eliminate the health hazards of oil mist pollution to workers, some workshops have installed oil mist filters. However, existing purification In order to ensure the purification efficiency when the equipment is working, most of them use high-power fans to extract oil mist, resulting in very harsh noise when the purification equipment is working. Although the problem of oil mist pollution in the workshop has been solved, new noise problems have also been introduced.

Utility model content

In order to reduce the operating noise of the oil mist purifier and achieve better operating results, the utility model provides an oil mist purifier with a sound-absorbing structure. The oil mist purifier does not add an additional muffler, which saves the installation and maintenance costs of the equipment , Solved the problem of excessive noise of oil pollution purification equipment in the workshop.

The technical solution adopted by the utility model to solve its technical problems is: an oil mist purifier with a sound-absorbing structure, including a box body, a fan partition, a filter system and an aerodynamic system; the fan partition is welded inside the box, The fan partition divides the box into an upper part and a lower part; the lower part is provided with a filter system, and the upper part is provided with an aerodynamic system;

The filter system is fixed on the inner casing of the lower part of the fan partition through the slideway, and the filter system is installed on the slideway from bottom to top in order of primary filter, secondary filter and tertiary filter. The filter system forms a hollow buffer chamber with one side and the bottom surface of the box inner shell, the air inlet is installed on the outer shell of the side box, and the outer shell of the other side of the box is also equipped with an exhaust oil port; the buffer chamber is respectively communicated with the air inlet, the filter system and the oil discharge port;

The aerodynamic system is fixed on the inner casing of a part of the box on the fan partition through the motor bracket. The aerodynamic system includes a fan motor, the lower end of the fan motor is connected to the fan impeller, and the horizontal air outlet of the fan impeller is connected to the inner casing of the box. The cavity formed between them is curved air duct Ⅰ;

A hollow cylindrical cover with guiding function is also fixedly installed on the fan impeller, which is a wind guide cover, and the cavity formed between the outer shell of the wind guide cover and the inner shell of the box is a curved air duct II;

The fan motor is set in the air guide hood, and the cavity formed between the fan motor and the inner casing of the air guide hood is a curved air duct VI;

The inner casing at the upper end of the box body is equipped with a hollow cylindrical cover with the function of exhausting air. The cover is an air outlet cover. The air guide cover is opposite to the opening end of the air outlet cover. The opening radius of the air outlet hood, part of the shell of the air outlet hood is inserted into the opening of the air guide hood, and the cavity formed between the fan motor and the inner shell of the air outlet hood is a curved air duct V;

The cavity formed between the outer casing of the air outlet hood and the inner casing of the box is a curved air duct III;

The curved air duct I, curved air duct II, curved air duct III, curved air duct VI and curved air duct V are connected to each other to form a curved air duct with functions of reversing and noise removal.

Further, the primary filter is a filter composed of highly polished stainless steel deflectors and windshields arranged in a staggered manner.

Further, the secondary filter is a filter unit with at least one layer of stainless steel wire.

Further, the three-stage filter is a filter made of oil-resistant high-efficiency filter material.

Further, a sealed inspection door is installed on the box body.

Further, the fan is a backward inclined centrifugal fan, and the blades of the fan impeller are steel blades with anti-corrosion treatment on the surface.

Further, the horizontal air outlet of the fan impeller is the outlet of the wind guide cover buckled on the fan impeller.

The beneficial effects of the utility model are:

The curved air duct with reversing function described in the utility model is assembled by the filter itself. The existence of the air duct makes the filtered air need to change the flow direction many times before it can be discharged from the air outlet hood. , during the flow process, due to the curved structure of the air duct, the kinetic energy of the air is reduced in a limited space, the flow rate of the air discharged from the oil mist purifier is reduced, and the noise of the equipment is reduced. The noise reduction structure does not need to add new noise reduction The device does not need to lengthen the air duct to achieve the purpose of noise reduction, which not only saves the cost of the device, but also saves the installation space of the device, making the structure of the oil pollution purifier more compact.

The utility model adopts three stages of successive filtration, and each stage filters oil mist particles with different diameters, so that the oil mist in the air can be filtered more thoroughly, and the purified air discharged through the exhaust hood can directly enter the workshop.

Description of drawings

Fig. 1 is the utility model air flow diagram;

Fig. 2 is the front view of the utility model.

Among them, 1. Air inlet, 2. Box, 3. Fan partition, 4. Fan impeller, 5. Air guide cover, 6. Hanging ring, 7. Air outlet cover, 8. Fan motor, 9. Motor bracket, 10 .Oil outlet, 11. Tertiary filter, 12. Secondary filter, 13. Primary filter, 14. Inspection door, 15. Equipment feet, 16. Buffer cavity, 17. Curved air duct Ⅰ, 18. Curved air duct II, 19. Curved air duct III, 20. Curved air duct VI, 21. Curved air duct V.

Detailed ways

Below in conjunction with accompanying drawing and specific embodiment the utility model is further described.

Example 1

As shown in Figure 1 and Figure 2, an oil mist purifier with a sound-absorbing structure includes a box body 2, a fan partition 3, a filtration system and an aerodynamic system; the fan partition 3 is welded inside the box, and the The fan partition 3 divides the box into an upper part and a lower part; the lower part is provided with a filter system, and the upper part is provided with an aerodynamic system;

The filter system is fixed on the inner shell of the lower part of the box body of the fan partition 3 through a slideway, and the filter system is successively installed on the slideway from the bottom up to the primary filter 13, the secondary filter 12 and the filter system. Three-stage filter 11 constitutes; the filter system forms a hollow buffer cavity 16 with one side and the bottom surface of the casing in the box, and the air inlet 1 is installed on the outer casing of the side casing, and the casing on the other side of the casing An oil discharge port 10 is also installed on the body; the buffer chamber 16 communicates with the air inlet 1, the filter system and the oil discharge port 10 respectively;

The aerodynamic system is fixed on the inner casing of the upper part of the fan partition 3 through a motor bracket, the aerodynamic system includes a fan motor 8, the lower end of the fan motor 8 is connected to the fan impeller 4, and the horizontal air outlet of the fan impeller 4 The cavity formed between the casing and the box body is a curved air duct I17;

The fan impeller 4 is also fixedly installed with a hollow cylindrical cover body with a guiding effect, the cover body is a wind guide cover 5, and the cavity formed between the outer shell of the wind guide cover 5 and the inner shell of the box is curved. Type air duct Ⅱ18;

The fan motor 8 is set in the air guide cover 5, and the cavity formed between the fan motor 8 and the inner shell of the air guide cover 5 is a curved air duct VI20;

A hollow cylindrical cover body with an exhaust effect is installed on the inner casing at the upper end of the box body. The cover body is an air outlet cover 7. The air guide cover 5 is opposite to the opening end of the air outlet cover 7. The air guide cover 5. The radius of the opening is greater than the opening radius of the air outlet cover 7. Part of the shell of the air outlet cover 7 is inserted into the opening of the air guide cover 5. The cavity formed between the fan motor 8 and the inner shell of the air outlet cover 5 is a curved air duct V21;

The cavity formed between the outer casing of the air outlet cover 7 and the inner casing of the box is a curved air duct III19;

The curved air duct I17, curved air duct II18, curved air duct III19, curved air duct VI20 and curved air duct V21 are connected to each other to form a curved air duct with functions of reversing and noise removal.

In this embodiment, the primary filter 13 is a filter composed of highly polished stainless steel deflectors and windshields arranged in a staggered manner. The secondary filter 12 is a filter unit with at least one layer of stainless steel wire. The three-stage filter 11 is a filter made of oil-resistant high-efficiency filter material. A sealed inspection door 14 is installed on the box body 2 . The fan is a backward inclined centrifugal fan, and the blades of the fan impeller (4) are steel blades with anti-corrosion treatment on the surface. The horizontal air outlet of the fan impeller 4 is the outlet of the wind guide cover buckled on the fan impeller 4 .

The working process of the present utility model is:

After the equipment is started, the air with oil mist is pumped by the fan through the air inlet 1 to the filter system in the box, and filtered by the primary filter 13, and the large particles of oil droplets in the oil mist are filtered out and discharged through the oil discharge port 10 ; The air with smaller oil droplets enters the secondary filter 12, and the filtered smaller oil droplets aggregate into large oil droplets and are discharged through the oil discharge port 10; the air with smaller oil mist particles enters the tertiary filter 11 for filtration, the filtered tiny oil droplets are aggregated into large oil droplets and discharged through the oil discharge port 10, the filtered air is extracted to the top of the fan partition 3 through the fan impeller 4, and the purified air enters the curved air duct I17 horizontally, In the curved air duct Ⅱ18, the purified air rises along the curved air duct Ⅱ18 to the curved air duct Ⅲ19 for a second change of direction, and the purified air enters the curved air duct Ⅵ20, and the air in the curved air duct Ⅵ20 is affected by gravity Accumulated three times of reversing, the purified air rises along the curved air duct V21 after the reversing, and is finally discharged from the air outlet hood.

The utility model is not limited to the above embodiments, and any equivalent ideas or changes within the technical scope disclosed in the utility model are listed as the protection scope of the utility model.

Claims (7)

1. An oil mist purifier with a sound-absorbing structure, characterized in that it includes a box (2), a fan partition (3), a filtration system and an aerodynamic system; the fan partition (3) is welded inside the box , the fan partition (3) separates the box into an upper part and a lower part; the lower part is provided with a filter system, and the upper part is provided with an aerodynamic system; The filter system is fixed on the inner casing of the lower part of the fan partition (3) through the slideway, and the filter system is installed on the slideway from the bottom up to the first-stage filter (13), the second-stage filter (12) and three-stage filter (11); the filter system forms a hollow buffer chamber (16) with one side and bottom surface of the inner shell of the box, and the air inlet (1) is installed on the outer shell of the side box On the outer shell of the other side of the box, an oil discharge port (10) is also installed; the buffer chamber (16) communicates with the air inlet (1), the filter system and the oil discharge port (10) respectively ; The aerodynamic system is fixed on the inner casing of the upper part of the fan partition (3) through the motor bracket, the aerodynamic system includes the fan motor (8), and the lower end of the fan motor (8) is connected to the fan impeller (4) , the cavity formed between the horizontal air outlet of the fan impeller (4) and the casing inside the box is a curved air duct I (17); A hollow cylindrical cover body with guiding function is also fixedly installed on the fan impeller (4). The formed cavity is curved air duct II (18); The fan motor (8) is set in the air guide cover (5), and the cavity formed between the fan motor (8) and the inner housing of the air guide cover (5) is a curved air duct VI (20); The inner casing at the upper end of the box is equipped with a hollow cylindrical cover with the function of exhausting air. The cover is the air outlet cover (7), and the opening of the air guide cover (5) and the air outlet cover (7) The ends are opposite, the opening radius of the air guide cover (5) is larger than the opening radius of the air outlet cover (7), part of the shell of the air outlet cover (7) is inserted into the opening of the air guide cover (5), and the fan motor (8) and the outlet The cavity formed between the inner casings of the air cover 5 is a curved air duct V (21); The cavity formed between the outer casing of the air outlet cover (7) and the inner casing of the box is a curved air duct III (19); The curved air duct I (17), curved air duct II (18), curved air duct III (19), curved air duct VI (20) and curved air duct V (21) are interconnected to form a Curved air duct with reversing and noise-removing functions. 2. The oil mist purifier with a sound-absorbing structure according to claim 1, characterized in that: the first-stage filter (13) is a filter composed of highly polished stainless steel deflectors and windshields staggered . 3. The oil mist purifier with sound-absorbing structure according to claim 1, characterized in that: said secondary filter (12) is a filter unit with at least one layer of stainless steel wire. 4. The oil mist purifier with sound-absorbing structure according to claim 1, characterized in that: the third-stage filter (11) is a filter made of oil-resistant high-efficiency filter material. 5. The oil mist purifier with sound-absorbing structure according to claim 1, characterized in that: a sealed inspection door (14) is installed on the box body (2). 6. The oil mist purifier with sound-absorbing structure according to claim 1, characterized in that: the fan is a backward-inclined centrifugal fan, and the blades of the fan impeller (4) are treated with anti-corrosion treatment on the surface Steel blades. 7. The oil mist purifier with sound-absorbing structure according to claim 1, characterized in that: the horizontal air outlet of the fan impeller (4) is the outlet of the wind guide cover buckled on the fan impeller (4).