CN210544132U

CN210544132U - Oil smoke purification system based on cyclone sprays

Info

Publication number: CN210544132U
Application number: CN201921197080.9U
Authority: CN
Inventors: 高凤宇
Original assignee: Zhongyu Jingyun Environmental Protection Technology Beijing Co ltd
Current assignee: Zhongyu Jingyun Environmental Protection Technology Beijing Co ltd
Priority date: 2019-07-26
Filing date: 2019-07-26
Publication date: 2020-05-19
Anticipated expiration: 2029-07-26

Abstract

The utility model discloses an oil smoke purification system based on cyclone spraying, which relates to the technical field of oil smoke purification equipment and comprises a smoke collecting pipeline for oil smoke to flow; a spraying device for spraying into the smoke collecting pipeline; the air box is communicated with the smoke collecting pipeline, and a first cavity and a second cavity which are mutually isolated are arranged in the air box; the cyclone separator is used for separating the gas-liquid mixture into gas and liquid, and is provided with a gas inlet, a gas outlet and a liquid outlet, wherein the gas inlet is positioned in the first cavity, the gas outlet is positioned in the second cavity, and the smoke collecting pipeline is communicated with the first cavity; and an induced draft fan is installed at one end of the exhaust pipeline, and the other end of the exhaust pipeline is communicated with the second chamber. The utility model discloses utilize the spraying to adsorb oil in the oil smoke and drip and granule, carry out gas-liquid separation thereupon, make the gaseous exhaust pipe of purifying discharge, on the basis of realizing the oil smoke purification, have equipment low cost to the maintenance cost is low and the advantage that the degree of difficulty is little.

Description

Oil smoke purification system based on cyclone sprays

Technical Field

The utility model belongs to the technical field of oil smoke clarification plant's technique and specifically relates to an oil smoke clean system based on whirlwind sprays.

Background

With the rapid increase of economic strength of China, the catering industry is also unprecedentedly developed, but the emission of oil smoke in the catering industry also has certain influence on the environment of China. In recent years, the environmental protection department of China more and more pays more attention to the atmospheric problem of oil smoke pollution in the catering industry. The national state of 1999 has released GWPB 5-2000 dietary oil smoke emission standard (trial run), and in 2001 has promulgated the formal national standards of people's republic of China GB 18483-2001 dietary oil smoke emission standard, which requires that all catering enterprises must install oil smoke purification equipment.

Most of the oil fume purification devices in the prior art are high-voltage electrostatic oil fume purification devices and dynamic centrifugal oil fume purification devices. However, the high-voltage electrostatic oil fume purification equipment and the dynamic centrifugal oil fume purification equipment have complex structures, so that the equipment cost is high, and meanwhile, the maintenance cost is high and the maintenance difficulty is high.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an oil smoke clean system based on whirlwind sprays, it utilizes the spraying to adsorb oil in the oil smoke and drips and the granule, carries out gas-liquid separation thereupon, makes the gaseous exhaust pipe of following of purification discharge, on the basis of realizing the oil smoke purification, has equipment low cost to the maintenance cost is low and the little advantage of the degree of difficulty.

The above object of the present invention can be achieved by the following technical solutions:

a lampblack purification system based on cyclone spraying comprises: a smoke collecting pipeline for flowing the oil smoke; the spraying device sprays into the smoke collecting pipeline so as to mix the fog drops and the oil smoke to form a gas-liquid mixture; the air box is communicated with the smoke collecting pipeline, and a first cavity and a second cavity which are mutually isolated are arranged in the air box; the cyclone separator is used for separating the gas-liquid mixture into gas and liquid, and is provided with a gas inlet, a gas outlet and a liquid outlet, wherein the gas inlet is positioned in the first cavity, the gas outlet is positioned in the second cavity, and the smoke collecting pipeline is communicated with the first cavity; and an induced draft fan is installed at one end of the exhaust pipeline, and the other end of the exhaust pipeline is communicated with the second chamber.

By adopting the technical scheme, after oil smoke in a kitchen is collected in the smoke collecting pipeline, the oil smoke collides with fog drops and is mixed to form a gas-liquid mixture, and the gas-liquid mixture enters the air box. In the air box, due to negative pressure caused by the induced draft fan, fog drops and gas are sucked into the cyclone separator and are separated into gas, liquid and liquid, the gas is discharged from the gas outlet, and the liquid is discharged from the liquid outlet. On the basis of realizing the oil smoke purification, the device has the advantages of low equipment cost, low maintenance cost and small difficulty.

The utility model discloses further set up to: the cyclone separator comprises an air inlet pipe, an air outlet pipe and a liquid outlet pipe; one end of the air inlet pipe is closed, the other end of the air inlet pipe is communicated with the liquid outlet pipe, and the liquid outlet pipe is positioned below the air inlet pipe; the air outlet pipe penetrates through the closed end of the air inlet pipe, so that two ends of the air inlet pipe are respectively positioned inside and outside the air inlet pipe; the spiral blade is arranged in the air inlet pipe, the spiral blade is hermetically connected with the inner wall of the air inlet pipe and the outer wall of the air outlet pipe to form a spiral flow passage, and fluid can move up and down along the flow passage; the air inlet is arranged on the side wall of the air inlet pipe and is positioned at the upper end of the flow passage.

By adopting the technical scheme, the gas-liquid mixture can flow along the flow channel after entering the gas inlet pipe. In the process, the gas-liquid mixture continuously collides with the inner wall of the gas inlet pipe and the outer wall of the gas outlet pipe due to the change of the flow direction, so that the fog drops are continuously converged on the wall surface to form liquid drops, and the liquid drops also have an adsorption function on the fog drops in the gas-liquid mixture. The fog drops are continuously gathered in the flow channel and finally flow into the liquid outlet pipe, and the gas is sucked by the induced draft fan after leaving from the flow channel and then enters the gas outlet pipe to be discharged, so that the purification of the gas-liquid mixture is completed.

The utility model discloses further set up to: the smoke collecting pipeline comprises a spraying section and an expansion section; the sectional area of the expansion section is gradually increased in the direction from the spraying section to the air box.

Through adopting above-mentioned technical scheme, in order to make entering into bellows that the gas-liquid mixture can be even to make the easier motion that changes the gas-liquid mixture of suction of draught fan, so, the gas-liquid mixture can carry out abundant diffusion and deceleration in the expansion section.

The utility model discloses further set up to: the spraying device comprises a water tank filled with circulating liquid, a spray head arranged in the smoke collecting pipeline, a water pump used for pumping the circulating liquid in the water tank to the spray head for discharging, and a water pipe connected among the water tank, the water pump and the spray head.

By adopting the technical scheme, the spraying function is realized.

The utility model discloses further set up to: the liquid outlet pipe is communicated with the water tank.

By adopting the technical scheme, the recycling of the circulating liquid is realized.

The utility model discloses further set up to: the drain pipe includes with the taper pipe portion that the intake pipe links to each other and with the straight tube portion that the water tank links to each other, the pipe diameter of taper pipe portion reduces gradually in the direction towards straight tube portion.

Through adopting above-mentioned technical scheme, fluid can still keep its speed to the removal of liquid outlet place one side after flowing from the runner, and the taper pipe portion that contracts gradually can further make the continuous gathering of droplet, improves the separation effect of gas-liquid.

The utility model discloses further set up to: the spray head is arranged in the spray section.

Through adopting above-mentioned technical scheme, the space of spraying section is compared in the expansion section narrowly and narrowly, is favorable to the mixture of spraying and oil smoke.

The utility model discloses further set up to: the circulating liquid is alkaline.

By adopting the technical scheme, the characteristic that the alkaline solution decomposes the grease is utilized, so that oil drops can be decomposed after the fog drops adsorb the oil drops, the adhesion of the oil drops in the cyclone separator is reduced, and the maintenance time interval of the cyclone separator is prolonged.

The utility model discloses further set up to: and a filter screen is fixed at one end of the air outlet pipe in the air inlet pipe.

Through adopting above-mentioned technical scheme, during outlet duct exhaust gas, still can have the unable complete quilt of small part of droplet to separate and can follow the gas flow, the filter screen can further play the effect that blocks and make the droplet assemble on the filter screen.

To sum up, the utility model discloses a beneficial technological effect does:

1. the oil drops and particles are mixed with the fog drops by using the spray and cyclone separator, and gas is separated from liquid and discharged, so that the oil fume purification device has the advantages of low equipment cost, low maintenance cost and low difficulty on the basis of realizing oil fume purification;

2. the smoke collecting pipeline provided with the expansion section can fully diffuse and decelerate the gas-liquid mixture, and the separation effect of the cyclone separator is improved;

3. the separated liquid can flow back to the water tank, so that the recycling of the circulating liquid is realized.

Drawings

FIG. 1 is a schematic structural diagram of a lampblack purification system based on cyclone spraying;

FIG. 2 is a schematic view of the structure of the smoke collecting duct;

FIG. 3 is a schematic view of the structure at the showerhead;

FIG. 4 is a perspective sectional view of a windbox;

FIG. 5 is a schematic view of the cyclone separator;

FIG. 6 is a schematic view of the inside structure of the cyclone.

In the figure, 1, a smoke collecting pipeline; 11. a spraying section; 12. an expansion section; 13. a square tube; 14. a support plate; 141. perforating; 2. an air box; 21. a sealing plate; 3. a spraying device; 31. a water tank; 32. a water pump; 331. an outer conduit; 332. an inner conduit; 34. a spray head; 4. a cyclone separator; 41. an air inlet pipe; 411. an air inlet; 42. an air outlet pipe; 43. a liquid outlet pipe; 431. a conical tube portion; 432. a straight tube portion; 44. a helical blade; 45. filtering with a screen; 5. an exhaust duct; 6. an induced draft fan.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, the utility model discloses an oil smoke clean system based on whirlwind spraying system, including be used for supplying the mobile collection tobacco pipe 1 of cigarette, to collection tobacco pipe 1 interior spraying and make the droplet mix with the oil smoke and form gas-liquid mixture's spray set 3, with collection tobacco pipe 1 wind box 2 that is linked together, be used for separating gas-liquid mixture for gas and liquid two parts's cyclone 4, exhaust duct 5 and draught fan 6.

Referring to fig. 1 and 2, the smoke collecting duct 1 includes a shower section 11 and an expansion section 12. The expansion section 12 is positioned between the spray section 11 and the air box 2 and connected with the air box 2, the spray section 11 is used for connecting the oil smoke extraction equipment in a kitchen, and the generated oil smoke enters the smoke collecting pipeline 1 from the spray section 11. In the direction from the shower section 11 to the air box 2, the width of the expansion section 12 gradually increases but the height thereof gradually decreases, and at the same time, the sectional area of the expansion section 12 gradually increases. The top of the spraying section 11 is open and a square pipe 13 is welded along the edge of the opening, and the width of the opening is consistent with that of the spraying section 11. A support plate 14 for sealing the square pipe 13 is welded above the square pipe 13, and a first through hole is formed in the support plate 14.

Referring to fig. 1 and 3, the spraying device 3 includes a water tank 31, a spray head 34 installed in the smoke collecting pipe 1, a water pump 32, and a water pipe connected between the water tank 31, the water pump 32, and the spray head 34. The water tank 31 is filled with a circulating liquid, and the circulating liquid is an alkaline aqueous solution. The water pump 32 is used to pump the circulating liquid through a water pipe to the spray head 34.

The water pipe comprises an outer pipe 331 located outside the smoke collecting pipe 1 and an inner pipe 332 located inside the smoke collecting pipe 1. The inner pipe 332 is bent in a serpentine shape in a horizontal plane. One end of the inner pipe 332 is a closed section, and the other end is bent upward and extends out of the first through hole to above the support plate 14. The inner pipe 332 is welded to the support plate 14 at the first through hole such that there is no gap between the inner pipe 332 and the support plate 14. The outer pipe 331 is for connecting the water tank 31 and the water pump 32, and connecting the water pump 32 and the inner pipe 332, and is externally welded to the protruding end of the inner pipe 332.

A plurality of spray heads 34 arranged in an array are installed on the inner pipeline 332, the nozzles of the spray heads 34 are arranged downwards, and the spray heads 34 are hidden in the square pipes 13. When the spray head 34 sprays into the smoke collecting pipeline 1, the oil smoke in the smoke collecting pipeline 1 flows into the air box 2 and then collides and mixes with the fog drops, oil drops and particles can be adsorbed on the fog drops to form a gas-liquid mixture, and meanwhile, the alkaline circulating liquid can decompose the oil drops and play a role in cleaning. Because the space in the spray section 11 is narrower than the space in the expansion section 12, the oil smoke will be fully mixed with the spray from the spray head 34 in the spray section 11 and form a gas-liquid mixture. After the gas-liquid mixture enters the expanding section 12, the flow velocity of the gas-liquid mixture is reduced because the sectional area of the expanding section 12 is gradually increased.

Referring to fig. 1 and 4, the wind box 2 is located right above the water tank 31, and four upright posts are fixed between the water tank 31 and the wind box 2. A horizontally arranged sealing plate 21 is welded in the wind box 2, and the sealing plate 21 divides the space in the wind box 2 into two parts, a first chamber and a second chamber. The top and the lateral wall of wind direction all are provided with the opening to the opening of top and lateral wall is opened through first cavity and second cavity respectively. The smoke collecting pipeline 1 is connected with the air box 2 in a welding mode and communicated with the second cavity through an opening on the side wall of the air box 2, and the smoke exhaust pipeline is connected with the top end of the air box 2 in a welding mode and communicated with the first cavity through an opening in the top of the air box 2. The induced draft fan 6 is installed in the one end that keeps away from bellows 2 of exhaust pipe.

Referring to fig. 1, 5 and 6, the cyclone 4 is vertically disposed between the wind box 2 and the water tank 31 and provided in plurality. The cyclone 4 comprises an inlet duct 41, an outlet duct 42 and an outlet duct 43 arranged coaxially. The upper end of the air inlet pipe 41 is a closed end, the lower end of the air inlet pipe is communicated with the liquid outlet pipe 43 in a welding mode, and an air inlet 411 is formed in the side wall of the air inlet pipe 41. The air outlet pipe 42 penetrates through the closed end of the air inlet pipe 41 and is connected with the air inlet pipe 41 in a welding mode, two ends of the air outlet pipe 42 are respectively located inside and outside the air inlet pipe 41, and a pipe opening, located outside the air inlet pipe 41, of the air outlet pipe 42 is an air outlet. The liquid outlet pipe 43 comprises a taper pipe part 431 connected with the air inlet pipe 41 and a straight pipe part 432 connected with the water tank 31, the pipe diameter of the taper pipe part 431 is gradually reduced in the direction towards the straight pipe part 432, and a pipe opening at the bottom end of the straight pipe part 432 is a liquid outlet.

An inlet pipe 41 projects into the second chamber from below the bellows 2 and is connected in a welded and sealed manner to the bellows 2. The outlet pipe 42 extends from the second chamber into the first chamber, and the outlet pipe 42 is connected to the sealing plate 21 by welding. The liquid outlet pipe 43 penetrates into the water tank 31 from top to bottom and is connected with the water tank 31 in a sealing mode through a flange.

A helical blade 44 is arranged in the air inlet pipe 41, the helical blade 44 is welded with the inner wall of the air inlet pipe 41 and the outer wall of the air outlet pipe 42 to form a helical flow passage, and fluid can move up and down along the flow passage. The inlet 411 is located at the upper end of the flow channel.

The gas-liquid mixture entering the wind box 2 is sucked into the cyclone 4 due to the negative pressure caused by the operation of the induced draft fan 6. Fluid entering the inlet pipe 41 from the inlet port 411 will move down the flow path. The gas-liquid mixture flows along the flow passage after entering the intake pipe 41. In the process, the gas-liquid mixture continuously collides with the inner wall of the gas inlet pipe 41 and the outer wall of the gas outlet pipe 42 due to the change of the flow direction, so that the droplets are continuously converged on the wall surface to form droplets, and the droplets also have an adsorption function on the droplets in the gas-liquid mixture. The droplets are continuously gathered in the flow channel and finally flow into the liquid outlet pipe 43, and the gas is sucked by the induced draft fan 6 after leaving from the flow channel and enters the gas outlet pipe 42 to be discharged, so that the purification of the gas-liquid mixture is completed. And the liquid flows back to the water tank 31 to realize the recycling of the circulating liquid.

A filter screen 45 is welded to one end of the air outlet pipe 42 positioned in the air inlet pipe 41. When the gas outlet pipe 42 discharges gas, a small part of small liquid drops can not be completely separated and can flow along with the gas, the filter screen 45 can further play a role in blocking so that the small liquid drops are gathered on the filter screen 45, and the gas-liquid separation effect is better.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides an oil smoke clean system based on whirlwind sprays which characterized in that: the method comprises the following steps:

a smoke collecting duct (1) for the flow of oil smoke;

a spraying device (3) which sprays into the smoke collecting pipeline (1) so as to mix the fog drops and the oil smoke to form a gas-liquid mixture;

the air box (2) is communicated with the smoke collecting pipeline (1), and a first cavity and a second cavity which are mutually isolated are arranged in the air box (2);

the cyclone separator (4) is used for separating the gas-liquid mixture into gas and liquid, the cyclone separator (4) is provided with a gas inlet (411), a gas outlet and a liquid outlet, the gas inlet (411) is positioned in the first cavity, the gas outlet is positioned in the second cavity, and the smoke collecting pipeline (1) is communicated with the first cavity;

and an induced draft fan (6) is installed at one end of the exhaust pipeline (5), and the other end of the exhaust pipeline (5) is communicated with the second chamber.

2. The cyclone spray based oil smoke purification system of claim 1, wherein:

the cyclone separator (4) comprises an air inlet pipe, an air outlet pipe and a liquid outlet pipe (43);

one end of the air inlet pipe is closed, the other end of the air inlet pipe is communicated with the liquid outlet pipe (43), and the liquid outlet pipe (43) is positioned below the air inlet pipe;

the air outlet pipe penetrates through the closed end of the air inlet pipe, so that two ends of the air inlet pipe are respectively positioned inside and outside the air inlet pipe;

a helical blade (44) is arranged in the air inlet pipe (41), the helical blade (44) is hermetically connected with the inner wall of the air inlet pipe (41) and the outer wall of the air outlet pipe (42) to form a helical flow passage, and fluid can move up and down along the flow passage;

the air inlet (411) is arranged on the side wall of the air inlet pipe (41), and the air inlet (411) is located at the upper end of the flow channel.

3. The cyclone spray based oil smoke purification system of claim 1, wherein: the smoke collecting pipeline (1) comprises a spraying section (11) and an expansion section (12); the sectional area of the expansion section (12) is gradually increased in the direction from the spraying section (11) to the air box (2).

4. The cyclone spray based oil smoke purification system of claim 2, wherein: the spraying device (3) comprises a water tank (31) filled with circulating liquid, a spray head (34) arranged in the smoke collecting pipeline (1), a water pump (32) used for pumping the circulating liquid in the water tank (31) to the spray head (34) to be discharged, and a water pipe connected among the water tank (31), the water pump (32) and the spray head (34).

5. The cyclone spray based oil smoke purification system of claim 4, wherein: the liquid outlet pipe (43) is communicated with the water tank (31).

6. The cyclone spray based oil smoke purification system of claim 5, wherein: the liquid outlet pipe (43) comprises a taper pipe part (431) connected with the air inlet pipe (41) and a straight pipe part (432) connected with the water tank (31), and the pipe diameter of the taper pipe part (431) is gradually reduced in the direction towards the straight pipe part (432).

7. The cyclone spray based oil smoke purification system of claim 4, wherein: the circulating liquid is alkaline.

8. The cyclone spray based oil smoke purification system of claim 2, wherein: and a filter screen (45) is fixed at one end of the air outlet pipe, which is positioned in the air inlet pipe.