CN103912904B - Wet type cyclone oil fume removal device - Google Patents

Abstract

The invention relates to a wet cyclone degreasing device, which includes a water tank, a water pump, a water pipe, a hydrocyclone oil-water separation device, and a wet cyclone degreasing cylinder. The water flow inlet of the cyclone oil-water separation device and the water flow outlet at the lower end of the hydrocyclone oil-water separation device are connected with the conduit of the wet cyclone degreasing cylinder. The hydrocyclone oil-water separation device is composed of a main separation section, an initial separation section, and an oil storage section. The main separation section is provided with an initial separation section and an oil storage section. The main separation section and the initial separation section are respectively provided with a water outlet and a water inlet. . The wet cyclone degreasing cylinder consists of a cylinder body, a nozzle, a swirl sheet, and a conduit. The cylinder is equipped with a swirl sheet and a nozzle, and the nozzle is connected to the conduit. The present invention optimizes its structure on the basis of the structure of the industrial wet cyclone dust collector, designs a multi-stage parallel degreasing structure, and combines a hydrocyclone separation device with it, so that the water that absorbs oil fumes can be recycled.

Description

Wet cyclone oil fume removal device

technical field

The invention relates to an oil fume adsorption and separation device of a kitchen range hood.

Background technique

In order to keep the kitchen tidy and hygienic, modern families are equipped with range hoods to remove the oil fumes generated during cooking. But the current range hood can only get rid of the oil fume, and the separation effect of the oil fume is not ideal. After a period of use, the blades of the fan are covered with oil, which destroys the balance of the fan, increases the noise during operation, and increases the wear of the motor. The current solution is to use oil filter screens or oil filter plates to filter, but there is a contradiction between mesh density and air resistance. The dense mesh has high degreasing efficiency, but the resistance is large, and it is easy to block. For this problem, there is no effective solution in the market now.

Contents of the invention

The present invention aims at the contradiction between the oil fume separation efficiency and airflow resistance of the existing range hood, and proposes a wet cyclone oil fume removal device. The device is based on the industrial cyclone dust removal technology, combined with the principle of fluid mechanics, and has the characteristics of small fluid resistance. .

The technical solution of the present invention: a wet cyclone degreasing device, including a water tank, a water pump, a water delivery pipe, a hydrocyclone oil-water separation device, and a wet cyclone degreasing cylinder, which is characterized in that a wet cyclone degreasing cylinder is placed on the water tank, and the water tank The water flow inlet of the hydrocyclone oil-water separation device is connected through the water delivery pipe and the water pump, and the water flow outlet at the lower end of the hydrocyclone oil-water separation device is connected with the conduit of the wet cyclone degreasing cylinder.

The hydrocyclone oil-water separation device consists of a main separation section, an initial separation section, and an oil storage section. The main separation section is provided with an initial separation section and an oil storage section. The main separation section and the initial separation section are respectively provided with a water outlet and a water inlet. .

The wet cyclone degreasing cylinder consists of a cylinder body, a nozzle, a swirl sheet, and a conduit. The cylinder is equipped with a swirl sheet and a nozzle, and the nozzle is connected to the conduit.

The upper part of the wet cyclone degreasing cylinder is cylindrical, and the lower part is conical. The ratio of the height of the cylinder to the height of the cone is between 1-2.

The beneficial effects of the present invention are:

The cyclone degreasing cylinder adopts an axial flow structure, and the swirl plate is used to make the airflow containing oil fume spiral along the cylinder wall. It is characterized by large flow rate and small fluid resistance.

The wall structure of the cyclone separation cylinder is a cylinder on the top and a cone on the bottom, and the height ratio of the upper and lower heights is between 1-2. Use the shrinking radius to increase the centrifugal force to enhance the separation effect.

The airflow containing oil fume is deflected by the swirl blade of the cyclone, and the airflow flows out in a spiral shape along the wall of the cyclone; the water is sprayed out from the nozzle in the form of mist after being pressurized by the water pump. On the one hand, due to the cooling of the water, the oil vapor is liquefied into large oil On the other hand, the water droplets and the oil droplets collide with each other and adsorb; because the density of the droplets is higher than that of the air, they are adsorbed with the cylinder wall under the action of centrifugal force to form an oil-water mixture; the oil-water mixture flows into the water inlet of the pump and passes through The water pump is pressurized and accelerated, and flows into the hydrocyclone oil-water separation device tangentially. Due to the difference in specific gravity between oil and water, under the action of centrifugal force, the oil is enriched towards the center of the cylinder, and then floats up into the oil storage part under the action of centrifugal force. ; The separated and purified water enters the nozzle and atomizes again to achieve water recycling.

Description of drawings

Fig. 1 is the structural representation of wet cyclone oil fume removal device of the present invention;

Fig. 2 is the structural representation of hydrocyclone oil-water separation device of the present invention;

Fig. 3 is a schematic structural view of the wet cyclone degreasing cylinder of the present invention.

detailed description

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

As shown in Figure 1, the wet cyclone degreasing device of the present invention includes a water tank A, a water pump B, a water delivery pipe C, a hydrocyclone oil-water separation device D, and a wet cyclone degreasing cylinder E.

A wet cyclone degreasing cylinder E is placed above the water tank A, and the water tank A is connected to the water inlet 2 of the hydrocyclone oil-water separation device D through the water delivery pipe C and the water pump B, and the water flow outlet 1 at the lower end of the hydrocyclone oil-water separation device D is connected to the wet cyclone degreaser The conduit 9 of the oil cylinder E is connected.

The oil-water mixture flowing out of the wet cyclone oil removal cylinder E flows into the water tank A, and enters the water pump B through the water delivery pipe C. After the water pump B is pressurized and accelerated, it flows into the hydrocyclone oil-water separation device D to achieve the purpose of oil-water separation. Oil 10 Stored in the upper oil storage section of the hydrocyclone oil-water separation device D, the water 11 enters the wet cyclone oil removal cylinder E from the lower end to remove oil, and reciprocates in turn to achieve circulation.

As shown in FIG. 2 , the hydrocyclone oil-water separation device D includes a water outlet 1 , a water inlet 2 , a main separation section 3 , an initial separation section 4 , and an oil storage section 5 .

The main separation section 3 is provided with an initial separation section 4 and an oil storage section 5 , and the main separation section 3 and the initial separation section 4 are respectively provided with a water flow outlet 1 and a water flow inlet 2 .

The mixed liquid flow is tangentially introduced into the initial separation section 4 from the water inlet 2 along the cylinder wall, and a swirling flow occurs, forming an initial centrifugal force, and the large oil droplets are separated; the liquid flow flows downward, and the radius of entering the main separation section 3 decreases, and the centrifugal force increases. Small oil droplets are separated; after the oil-water separation, the water 11 is below, and the oil 10 enters the oil storage section 5 under buoyancy; the purified water is exported from the water inlet 2.

As shown in Figure 3, the wet cyclone degreasing cylinder E includes a cylinder body, a spout 7, a swirl plate 8, and a conduit 9. The cylinder is equipped with a swirl plate 8 and a spout 7, and the spout 7 is connected to the conduit 9.

The upper part of the wet cyclone degreasing cylinder E is cylindrical, and the lower part is conical, and the ratio of the height of the cylinder to the height of the cone is between 1-2.

The purified water flowing out of the hydrocyclone oil-water separation device D enters the conduit 9 of the wet cyclone degreasing cylinder E, and finally reaches the nozzle 7 for atomization 12, and diffuses along the radial direction of the cyclone; at the same time, the airflow containing oil fumes passes through the cyclone The sheet 8 deflects and flows downward in a spiral shape; then, the oil vapor is cooled and liquefied by the water mist, becomes a large oil drop and is absorbed by the water drop, and hits the cylinder wall 6 under the action of centrifugal force to form an oil-water mixture that flows into the water tank A.

The water serves the purpose of absorbing, cooling and removing oil fumes throughout the process. The water is recycled, but it will inevitably decrease, and regular water replenishment is required.

Claims (1)

1. A wet cyclone oil fume removal device, comprising a water tank (A), a water pump (B), a water delivery pipe (C), a hydrocyclone oil-water separation device (D), and a wet cyclone oil removal cylinder (E), characterized in that: A wet cyclone degreasing cylinder (E) is placed on the water tank (A), and the water tank (A) is connected to the water inlet (2) of the hydrocyclone oil-water separation device (D) through the water delivery pipe (C) and the water pump (B), The water outlet (1) at the lower end of the hydrocyclone oil-water separation device (D) is connected to the conduit (9) of the wet cyclone degreasing cylinder (E); the wet cyclone degreasing cylinder (E) consists of a cylinder body, a nozzle (7 ), swirl sheet (8), conduit (9), swirl sheet (8) and spout (7) are housed in the cylindrical body, and spout (7) is connected with conduit (9); Described wet cyclone degreasing cylinder (E ) has a cylindrical upper part and a conical lower part, and the ratio of the cylindrical height to the conical height is between 1-2; the hydrocyclone oil-water separation device (D) consists of the main separation section (3), the initial separation section (4) and oil storage section (5), the main separation section (3) is provided with an initial separation section (4) and an oil storage section (5), and the main separation section (3) and the initial separation section (4) are A water outlet (1) and a water inlet (2) are respectively provided.