CN206121396U - Novel oil-water automatic separation catering oil fume purification device - Google Patents

Abstract

The utility model discloses a novel oil-water automatic separation cooking fume purification device, comprising a spray tower, the bottom of the spray tower is a liquid accumulation barrel, the spray tower is located on the upper part of the liquid accumulation barrel and is provided with an oil fume inlet, and the top of the spray tower is provided with a purification Gas outlet, the inside of the spray tower is located between the oil fume inlet and the purified gas outlet, and there are sprinklers and packing layers from top to bottom. There is an oil storage tank connected to the oil outlet through pipes outside the spray tower, and a drain pipe is installed in the liquid accumulation barrel. The upper end of the drain pipe is located in the liquid accumulation barrel, and the lower end is located outside the spray tower. , the spherical plug is connected with a liquid level float through a connecting rod. The utility model adopts a spraying method to carry out multi-stage spraying treatment on the oil fumes, thereby purifying the oil fumes and collecting the oil in the oil fumes. The utility model has the advantages of low cost, simple structure, convenient later maintenance, strong applicability, no secondary pollution, and great significance to environmental protection.

Description

A new type of oil-water automatic separation food fume purification device

technical field

The utility model relates to a novel oil-water automatic separation catering oil fume purification device, which belongs to the technical field of oil fume purification equipment in the catering industry.

Background technique

The harmful components of kitchen fumes are mainly oil volatiles, water vapor, and fuel combustion products during high-temperature cooking. However, the high-temperature and oily cooking habits of Chinese food lead to a large amount of oil in the exhaust fume. Problems, such as oil fumes condensing and accumulating on pipes or fan blades after being cooled, resulting in reduced ventilation area, resulting in reduced fan efficiency, increased noise, and shortened equipment life; oil droplets fall back to the kitchen from hoods and other parts, affecting Hygienic; after a period of use, it is necessary to clean the system and equipment, which is not only very troublesome, but also easy to damage the fan; oil and dust mixed together form oily smoke and dirt that accumulates at the exhaust port, which is difficult to clean and affects the appearance of the building. Oil fume also has certain harm to human health. Therefore, effective purification of lampblack has very important practical significance for the environment and human health.

In the prior art, the oil fume purification technologies are mainly mechanical, electrostatic deposition, filtration and adsorption, washing absorption, thermal oxidation incineration, catalytic purification, biological method, mineral method, etc. Although the range hoods using these methods are processing Some achievements have been made in cooking fume, but there are generally high initial investment costs, troublesome operation and maintenance, and technical problems such as secondary pollution, which make some catering service companies reluctant to use them.

Contents of the invention

The purpose of the utility model is to provide an oil-water automatic separation catering oil fume purification device that can purify the oil fume and collect the oil in the oil fume for secondary utilization, so as to solve the problem of high initial investment cost and troublesome operation and maintenance in the oil fume purification technology of the prior art , Technical problems of secondary pollution.

The utility model adopts the following technical scheme: a new type of oil-water automatic separation catering oil fume purification device, which includes a spray tower, the bottom of the spray tower is a liquid accumulation barrel, and the spray tower is located on the upper part of the liquid accumulation barrel with an oil fume inlet, and the spray tower There is a purified gas outlet on the top, and the inside of the spray tower is located between the oil fume inlet and the purified gas outlet. There are sprinklers and packing layers from top to bottom. On the spray tower, there is a An oil outlet, the spray tower is provided with an oil storage tank connected to the oil outlet through a pipeline, and a drain pipe is provided in the liquid accumulation barrel. The upper end of the drain pipe is located in the liquid accumulation barrel, and the lower end is located outside the spray tower. A spherical plug is arranged inside the upper end, and a liquid level float is connected to the spherical plug through a connecting rod.

The bottom of the liquid accumulation bucket is connected with a circulating water pipeline leading into the sprayer, and a circulating water pump is arranged on the circulating water pipeline.

A branch pipe leading into the oil fume inlet is connected to the circulating water pipe.

The oil fume inlet is provided with three water spray pipes connected to branch pipes, and each water spray pipe is provided with a row of fine holes.

The oil fume inlet is inclined downward by 5-10°.

A demister is provided in the spray tower between the purified gas outlet and the shower, and an internal mirror is provided on the spray tower.

A baffle is provided at the oil outlet.

The top of the oil storage tank is provided with an exhaust port, and the bottom is provided with an oil discharge port.

The working process of the utility model is as follows: the oil fume to be treated enters the spray tower from the oil fume inlet, and is in reverse contact with the spray water sprayed by the sprayer, and most of the oil in the oil fume is washed out, and then through the packing layer, the oil fume and the The spray water makes full gas-liquid two-phase contact to remove the remaining oil in the oil fume. The clean flue gas is discharged into the atmosphere through the outlet of the purified gas, and the spray water with grease falls into the liquid accumulation bucket at the bottom of the spray tower. Floating on the horizontal surface, the liquid level rises to the oil outlet, and the grease will be discharged from the oil outlet into the oil storage tank. When the liquid level in the liquid accumulation barrel rises beyond the position of the oil outlet, in order to prevent a large amount of clean water from being discharged from the oil outlet, the utility model sets a floating ball and a water outlet pipe in the liquid accumulation barrel. The size of the floating ball and the height of the water outlet pipe are determined by It is determined by buoyancy calculation to control the liquid level of the liquid accumulation barrel. When the liquid level exceeds the position of the oil outlet, the floating ball rises, and at the same time drives the connecting rod and the spherical plug to rise, and the spherical plug is separated from the mouth of the drain pipe, and the liquid in the liquid accumulation barrel Water will be discharged from the drain port, and when the liquid level drops to the position of the oil outlet, the floating ball will drive the connecting rod and the spherical plug to descend, and the spherical plug will reset to the mouth of the drain pipe, thereby stopping drainage. The utility model uses a spray tower to carry out multi-stage spraying treatment on the oil fumes in a spraying manner, thereby purifying the oil fumes and collecting the oil in the oil fumes for secondary use. The utility model has the advantages of low cost, simple structure, convenient later maintenance, strong applicability, no secondary pollution, and great significance to environmental protection.

Preferably, the spray water of the utility model is extracted from the liquid accumulation bucket by a circulating water pump, and connected through a circulating water pipeline, so that the whole process is circulated with water.

Preferably, the circulating water is introduced into the oil fume inlet through a branch pipe connected to the circulating water pipe, and the circulating water can perform preliminary spraying treatment on the oil fume.

Preferably, three water spray pipes are arranged in the oil fume inlet, and a row of fine holes are provided on the water spray pipes, so that circulating water can be sprayed into the oil fume inlet to form a three-stage water curtain, which is more conducive to washing out the oil in the oil fume.

Preferably, the oil fume inlet is inclined downward by 5~10º, which is beneficial for oil and water to enter the bottom storage tank.

Preferably, the demister can be used to dehydrate and defog the purified flue gas to further reduce the water content in the flue gas.

Preferably, the baffle at the oil outlet can prevent the upper spray water from entering the oil discharge pipe along the tower wall.

Description of drawings

Fig. 1 is a schematic structural view of an embodiment of the utility model.

detailed description

The utility model will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

As shown in Figure 1, the specific embodiment of the novel oil-water automatic separation catering oil fume purification device of the present utility model includes a spray tower 1, the bottom of the spray tower 1 is a liquid accumulation barrel 2, and the spray tower 1 is located on the upper part of the liquid accumulation barrel 2. There is an oil fume inlet 3, and the oil fume inlet 3 is inclined downward by 5~10°. The top of the spray tower 1 is provided with a purified gas outlet 4. The inside of the spray tower 1 is located between the oil fume inlet 3 and the purified gas outlet 4 from top to bottom. A shower 5 and a packing layer 6 are provided, and the packing layer 6 includes a packing support plate 61 fixed in the spray tower and a packing 62 made of polypropylene Pall rings arranged on the packing support plate. A demister 7 is provided in the spray tower 1 between the purified gas outlet 4 and the sprayer 5 , and an internal mirror 15 is provided on the spray tower 1 . The bottom of the liquid accumulation barrel 2 is connected with a circulating water pipeline leading into the shower 5, and a circulating water pump 14 is arranged on the circulating water pipeline. The circulating water pipe is connected with a branch pipe leading into the oil fume inlet 3 . Three water spray pipes connected to the branch pipes are provided at the 3 positions of the oil fume inlet, and each water spray pipe is provided with a row of fine holes.

A water inlet 17 is provided on the spray tower above the liquid level of the liquid accumulation barrel 2, which is used for initial water filling and water replenishment, and an oil outlet 8 is arranged at the liquid surface position, and a stopper is provided at the oil outlet 8. plate, which can prevent the upper spray water from entering the oil discharge pipe along the tower wall. The spray tower 1 is equipped with an oil storage tank 9 connected to the oil outlet through a pipeline, and the top of the oil storage tank 9 is provided with an exhaust port 91 , The bottom is provided with an oil discharge port 92, and a drain pipe 10 is provided in the liquid accumulation barrel 2. The upper end of the drain pipe 10 is located in the liquid accumulation barrel 2, and the lower end is located outside the spray tower 1. The upper end of the drain pipe 10 is provided with a spherical plug 11. A liquid level float 13 is connected to the spherical plug 11 through a connecting rod 12 . The bottom of the spray tower 1 is provided with a support base 16 on which the spray tower 1 and the oil storage tank 9 are installed.

The oil fume to be treated is introduced from the oil fume inlet, and the branch pipe connected to the circulating water pipe introduces the circulating water into the oil fume inlet. After the initial treatment of the level water curtain, it enters the spray tower and is in reverse contact with the spray water, and most of the oil in the oil fume is washed out, and then through the packing layer made of polypropylene Pall rings, the oil fume and the spray water undergo gas-liquid separation Fully contact with each other to remove the oil in the oil fume. The clean flue gas is dehydrated and defogged by the demister and then discharged into the atmosphere through the fan. The spray water with grease falls into the liquid accumulation bucket at the bottom of the spray tower, and the grease floats in the On the horizontal plane, the liquid level rises to the oil outlet, and the grease will be discharged from the oil outlet into the oil storage tank. When the liquid level rises above the oil outlet level, the floating ball will drive the connecting rod and the spherical plug to rise at the same time. When the oil outlet is at the oil outlet position, the floating ball will drive the connecting rod and the spherical plug to descend at the same time, and the spherical plug will reset to the mouth of the drain pipe, thereby stopping the drainage. Determine the size of the floating ball and the height of the outlet pipe through buoyancy calculations to control the liquid level of the effusion barrel. During this period, the spray water is drawn from the liquid accumulation bucket by the circulating water pump, and connected through the circulating water pipeline, so that the whole process is circulated with water.

In other embodiments of the present invention, there may be one, two, or more than three water spray pipes at the oil fume inlet.

The above descriptions are only preferred embodiments of the utility model, and do not limit the utility model in any form. For those skilled in the art, the utility model can have various modifications and changes. Any simple modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present invention still belong to the scope of the technical solution of the present invention.

Claims (8)

1. A new type of oil-water automatic separation food fume purification device, characterized in that it includes a spray tower (1), the bottom of the spray tower (1) is a liquid accumulation bucket (2), and the spray tower (1) is located at the bottom of the liquid accumulation The upper part of the barrel (2) is provided with an oil fume inlet (3), and the top of the spray tower (1) is provided with a purified gas outlet (4), and the inside of the spray tower is located between the oil fume inlet (3) and the purified gas outlet (4) A sprayer (5) and a packing layer (6) are arranged from top to bottom, and an oil outlet (8) is arranged on the spray tower (1) at the liquid level of the liquid accumulation barrel (2). The shower tower (1) is equipped with an oil storage tank (9) connected to the oil outlet (8) through a pipeline, and a drain pipe (10) is provided inside the liquid accumulation barrel (2), and the upper end of the drain pipe (10) is located in the liquid accumulation barrel (2) The inner and lower ends are located outside the spray tower (1), and the upper end of the drain pipe (10) is provided with a spherical plug (11), and the spherical plug (11) is connected with a liquid level float (13) through a connecting rod (12). ). 2. The novel oil-water automatic separation cooking oil fume purification device according to claim 1, characterized in that: the bottom of the liquid accumulation barrel (2) is connected with a circulating water pipe leading into the shower, and the circulating water pipe is equipped with A circulating water pump (14) is arranged. 3. The novel oil-water automatic separation catering oil fume purification device according to claim 2, characterized in that: the circulating water pipe is connected with a branch pipe leading into the oil fume inlet (3). 4. The novel oil-water automatic separation cooking oil fume purification device according to claim 3, characterized in that: the oil fume inlet (3) is provided with three water spray pipes connected to branch pipes, and each water spray pipe is provided with There is a row of pores. 5. The novel oil-water automatic separation catering oil fume purification device according to any one of claims 1 to 4, characterized in that: the oil fume inlet (3) is inclined downward by 5-10°. 6. According to any one of claims 1 to 4, the new type of oil-water automatic separation catering oil fume purification device is characterized in that: the spray tower (1) is located in the purification gas outlet (4) and the sprayer (5) A mist eliminator (7) is provided in between, and an internal mirror (15) is provided on the spray tower (1). 7. The new type of oil-water automatic separation catering oil fume purification device according to any one of claims 1 to 4, characterized in that: the oil outlet (8) is provided with a baffle. 8. According to any one of claims 1 to 4, the new type of oil-water automatic separation catering oil fume purification device is characterized in that: the top of the oil storage tank (9) is provided with an exhaust port (91), and the bottom is provided with an oil discharge port (92).