阅读说明：本技术 一种可进行进气口增压的高速离心式空压机 (High-speed centrifugal air compressor capable of supercharging through air inlet ) 是由 张清源 刘凡沈 周晓凯 林军普 王正松 于 2021-08-10 设计创作，主要内容包括：本发明属于空气压缩机技术领域,且公开了一种可进行进气口增压的高速离心式空压机,包括压缩机,所述压缩机的进气口固定连接有进气风机,所述压缩机的传动主轴穿出压缩机的进气口并与进气风机内部的送风叶传动连接,所述进气风机的进气口固定连通有回流器,所述回流器的进气端固定连通有螺旋进气管。本发明通过水雾会将气流中的灰尘包裹,再随着螺旋进气管螺旋向下流动时,由于质量较高,在螺旋运动中会由于离心趋势而最终被甩到螺旋进气管的内壁上,带着灰尘粘附在螺旋进气管的内壁上,随着更多水雾颗粒在螺旋进气管内壁上积压,最终会形成水流流走,达到了除尘和气液分离的目的,但是又不会减少气流量,维持了风压。(The invention belongs to the technical field of air compressors and discloses a high-speed centrifugal air compressor capable of supercharging an air inlet. According to the invention, dust in the air flow is wrapped by the water mist, and then flows downwards along with the spiral air inlet pipe in a spiral manner, due to high quality, the dust is thrown to the inner wall of the spiral air inlet pipe finally due to a centrifugal trend in spiral movement, the dust is adhered to the inner wall of the spiral air inlet pipe, and water flow is formed finally along with the accumulation of more water mist particles on the inner wall of the spiral air inlet pipe, so that the purposes of dust removal and gas-liquid separation are achieved, but the air flow is not reduced, and the air pressure is maintained.)

1. A high-speed centrifugal air compressor capable of supercharging an air inlet comprises a compressor (1) and is characterized in that: the air inlet fixedly connected with air intake fan (2) of compressor (1), the air inlet of compressor (1) is worn out to the transmission main shaft of compressor (1) and is connected with the inside air supply leaf transmission of air intake fan (2), the fixed intercommunication of air inlet of air intake fan (2) has backward flow ware (5), the fixed intercommunication of air inlet of backward flow ware (5) has spiral intake pipe (4), the inboard of spiral intake pipe (4) is equipped with isolating cylinder (7), the inner chamber bottom of isolating cylinder (7) contains water and is provided with water pump (9), the surface of air inlet cover (3) is equipped with atomizing nozzle (32), and atomizing nozzle (32) supply water through water pump (9).

2. The high-speed centrifugal air compressor capable of performing air inlet pressurization according to claim 1, characterized in that: the water storage bin (6) is arranged below the spiral air inlet pipe (4), the bottom of the inner cavity of the air inlet cover (3) is fixedly communicated with the inner cavity of the water storage bin (6) through a guide pipe (31), and the bottom of the inner cavity of the reflux device (5) is fixedly communicated with the inner cavity of the water storage bin (6) through a water conveying pipe (55).

3. The high-speed centrifugal air compressor capable of performing air inlet pressurization according to claim 1, characterized in that: keep apart a section of thick bamboo (7) fixed mounting in the top of water storage storehouse (6), the bottom of keeping apart a section of thick bamboo (7) is equipped with one deck water permeable plate (71), the bottom fixed mounting of water permeable plate (71) has No. two filter screens (8), the top at water permeable plate (71) is settled in water pump (9).

4. A high-speed centrifugal air compressor capable of performing air inlet pressurization according to claim 3, characterized in that: no. two filter screens (8) are including metal limit frame (81) and filter cloth (82), metal limit frame (81) pass through screw fixed mounting in the bottom of porous disk (71), the inner ring of metal limit frame (81) is located in filter cloth (82).

5. The high-speed centrifugal air compressor capable of performing air inlet pressurization according to claim 2, characterized in that: the bottom of water storage storehouse (6) inner chamber is slided and is installed a filter screen (61), a filter screen (61) also sets up in the below of No. two filter screens (8) simultaneously, thereby a filter screen (61) can be taken out outwards and break away from the inside of water storage storehouse (6), the rectangle opening that supplies a filter screen (61) business turn over is seted up on the surface of water storage storehouse (6), and this rectangle opening is inserted the outside frame shutoff of a filter screen (61) after targetting in place at a filter screen (61).

6. The high-speed centrifugal air compressor capable of performing air inlet pressurization according to claim 1, characterized in that: return flow ware (5) are still including dustcoat (51), mounting bracket (52), net (53) and separation blade (54) of permeating water, mounting bracket (52) set up in the inner chamber of dustcoat (51), net (53) fixed connection is in the inboard of mounting bracket (52) of permeating water, separation blade (54) lid fits the tip of dustcoat (51), dustcoat (51) and separation blade (54) pass through the air inlet fixed connection of bolt and air intake fan (2), the other end of dustcoat (51) is fixed to be communicated with in the bottom opening of spiral intake pipe (4).

7. The high-speed centrifugal air compressor capable of performing air inlet pressurization according to claim 6, wherein: the mounting frame (52) is in the shape of an equidistant annular grid, the outer side of the water-permeable net (53) is directly exposed in the inner cavities of the outer cover (51) and the mounting frame (52), and the water-permeable net (53) can be used for dust with the average diameter of 0.0001 mm-0.01 mm to pass through.

8. The high-speed centrifugal air compressor capable of performing air inlet pressurization according to claim 1, characterized in that: be provided with bone piece (41) on the inner chamber wall of spiral intake pipe (4), bone piece (41) extend until the bottom opening part of spiral intake pipe (4) along the spiral direction of spiral intake pipe (4).

9. The high-speed centrifugal air compressor capable of performing air inlet pressurization according to claim 1, characterized in that: the atomizing nozzles (32) are arranged on the air inlet cover (3) in a total number of three, and the three atomizing nozzles (32) are distributed in an annular equidistant mode outside the air inlet cover (3).

10. The high-speed centrifugal air compressor capable of performing air inlet pressurization according to claim 9, wherein: the inner cavity of the air inlet cover (3) is in the shape that the calibers of two ends are small and the caliber of the middle part is large, the atomizing nozzle (32) is arranged in the middle of the air inlet cover (3), and the guide pipe (31) is fixedly arranged at the bottom of the middle part of the air inlet cover (3).

Technical Field

The invention belongs to the technical field of air compressors, and particularly relates to a high-speed centrifugal air compressor capable of supercharging an air inlet.

Background

The air compressor is an air compressor, which is a device capable of compressing air, and is mainly divided into a reciprocating piston type, a centrifugal type, a screw type and the like, and has a very wide application space in industry, and is also one of indispensable devices for modern industrial construction.

Air compressor is higher to the requirement of air inlet air quality, if carry a large amount of dust pollutants entering compressor in the air current, can cause the damage to compressor itself, consequently outside air generally can set up a special filter equipment and filter gas before entering into the compressor, current ordinary filtration mode utilizes the filter screen to filter, but the drawback that this kind of filtration mode brought is equipment because the existence of filter screen and the gas permeability reduces, lead to air flow and wind pressure all to reduce, the air inlet efficiency that admits air reduces.

Therefore, the invention provides a new filtering measure, which aims to maintain the gas pressure of the gas inlet and even assist in pressurization on the premise of ensuring the direct connection of the filtered gas flow.

Disclosure of Invention

The invention aims to provide a high-speed centrifugal air compressor capable of supercharging an air inlet so as to solve the problems in the background technology.

In order to achieve the above purpose, the invention provides the following technical scheme: a high-speed centrifugal air compressor capable of supercharging an air inlet comprises a compressor, wherein an air inlet fan is fixedly connected to the air inlet of the compressor, a transmission main shaft of the compressor penetrates out of the air inlet of the compressor and is in transmission connection with an air supply blade inside the air inlet fan, a backflow device is fixedly communicated with the air inlet of the air inlet fan, a spiral air inlet pipe is fixedly communicated with the air inlet end of the backflow device, a separation cylinder is arranged on the inner side of the spiral air inlet pipe, water is filled at the bottom of an inner cavity of the separation cylinder and is provided with a water pump, an atomizing nozzle is arranged on the outer surface of an air inlet cover and supplies water through the water pump, the water pump is communicated with the atomizing nozzle through a water pipe, so that water mist is sprayed at an opening of the atomizing nozzle, most of water mist wrapped with dust, is condensed into water to be discharged through a guide pipe due to impact with the inner wall and impact between the water mist in the inner cavity of the air inlet cover, the remaining part of water smoke is through in the inner chamber of spiral intake pipe, do the spiral downstream along with the air current direction, then from single water smoke granule analysis, it is because the quality is higher, can be finally got rid of on the inner wall of spiral intake pipe because the centrifugation trend in the spiral motion, take the dust adhesion on the inner wall of spiral intake pipe, along with more water smoke granules overstock on spiral intake pipe inner wall, can form the rivers and flow away finally, the spiral height of spiral intake pipe can be along with proper adjustment, thereby reach best dewatering state.

Preferably, the below of spiral intake pipe is equipped with the water storage storehouse, the bottom of air inlet cover inner chamber is passed through the fixed inner chamber that communicates in the water storage storehouse of honeycomb duct, the bottom of backward flow ware inner chamber is passed through the raceway and is fixed the inner chamber that communicates in the water storage storehouse, and the inside rivers of air inlet cover and backward flow ware can be arranged in the water storage storehouse respectively through honeycomb duct and raceway.

Preferably, an isolation cylinder fixed mounting is in the top in water storage storehouse, the bottom of isolation cylinder is equipped with the one deck porous disk, the bottom fixed mounting of porous disk has No. two filter screens, the top at the porous disk is settled to the water pump, and the porous disk can permeate water.

Preferably, No. two filter screens are including metal limit frame and filter cloth, metal limit frame passes through screw fixed mounting in the bottom of porous disk, the inner ring of metal limit frame is located to the filter cloth, known by above-mentioned information, it runs through about the inner chamber of isolating cylinder in fact, when the water level in the water storage storehouse inner chamber is higher than the porous disk then, the inside water level of isolating cylinder should also be higher than the porous disk when, because the water pump can be with the reason that moisture was taken out from in the isolating cylinder inner chamber, the water level constantly needs to supply for maintaining with external the same height in isolating cylinder, then the filter cloth can play a filterable effect than that, separate the dust in the rivers that will pass through the filter cloth, prevent to enter into the inner chamber of isolating cylinder, guarantee that the water pump extraction is clean.

Preferably, the bottom of reservoir inner chamber is slided and is installed a filter screen, a filter screen also sets up in the below of No. two filter screens simultaneously, thereby a filter screen can be taken out outwards and break away from the inside in reservoir, the rectangle opening that supplies a filter screen business turn over is seted up on the surface in reservoir, and this rectangle opening is in place by the outside frame shutoff of a filter screen after a filter screen inserts to the place, and the effect of a filter screen is the inside dust of clearance of being convenient for, takes out the water in the reservoir to the greatest extent through the water pump during the clearance, and the dust also can fall the filter screen top of a filter screen along with the decline of water level, directly takes out a filter screen outward, and the dust can be concentrated on the top of a filter screen and is taken out together.

Preferably, the backward flow ware is still including dustcoat, mounting bracket, net and separation blade of permeating water, the mounting bracket sets up in the inner chamber of dustcoat, net fixed connection permeates water in the inboard of mounting bracket, the separation blade lid fits the tip of dustcoat, dustcoat and separation blade pass through bolt and air intake fan's air inlet fixed connection, the fixed bottom opening that communicates in the spiral intake pipe of the other end of dustcoat, the rivers that flow down of the pipeline inner wall of spiral intake pipe can flow to permeating water on the net, then in permeating through the net and flowing back to the reservoir along the raceway.

Preferably, the mounting frame is in the shape of an equidistant annular grid, the outer side of the water-permeable net is directly exposed in the inner cavities of the outer cover and the mounting frame, the water permeable net can allow dust with the average diameter of 0.0001mm to 0.01mm to pass through, the dust can pass through the permeable net, which does not mean that the permeable net can directly and smoothly suck air, and the permeable net is obviously in a soaked state in the use process, so the air permeability of the permeable net is greatly limited, so that the outside air flow can not enter from the outside of the water permeable net basically, but because the liquid in the inner cavity can flow out, so that dust particles with a diameter of between.mm and.mm can flow out of the water-permeable net, i.e. dust can flow away through the water-permeable net along the water duct, therefore, the discharge speed of water flow in the spiral air inlet pipe can be increased, the overstocked water and even overflow are avoided, and the overstocked dust and even the thickness of the dust on the inner side of the water permeable net can be prevented.

Preferably, be provided with the bone piece on the inner chamber wall of spiral intake pipe, the bone piece extends until the bottom opening part of spiral intake pipe along the spiral direction of spiral intake pipe, and the effect of bone piece is in order to increase the inside surface area of spiral intake pipe, increases the probability that water smoke and spiral intake pipe inner wall contact in the removal through the mode that improves inside surface area to make the drop of water condense into rivers through the contact more easily.

Preferably, the atomizing nozzle is installed threely on the cover that admits air altogether, and three atomizing nozzle is annular equidistance in the outside of admitting air cover and distributes, and three atomizing nozzle equidistance distributes and can completely fill spun water smoke to each corner in the cover inner chamber that admits air, can make the dust that enters into in the cover inner chamber that admits air wrap up by the drop of water granule immediately.

Preferably, the inner cavity of the air inlet cover is in a shape that the calibers of two ends are small and the caliber of the middle part is large, the atomizing nozzle is installed in the middle of the air inlet cover, the flow guide pipe is fixedly installed at the bottom of the middle part of the air inlet cover, the air inlet cover can concentrate water condensed in the air inlet cover to the bottom of the middle part of the air inlet cover through flow guide by means of the design, and water flow can be discharged along the flow guide pipe due to the fact that the depth of the bottom of the middle part of the air inlet cover is the largest.

The invention has the following beneficial effects:

1. according to the invention, the atomizing nozzle is arranged outside the air inlet cover, the atomizing nozzle sprays water mist to the air flow in the air inlet cover, the water mist is fully mixed with the air flow along with the flowing of the air, the water mist can wrap dust in the air flow, and the water mist flows downwards along with the spiral air inlet pipe in a spiral manner, due to high quality, the water mist is thrown onto the inner wall of the spiral air inlet pipe finally due to a centrifugal tendency in spiral movement, the dust is adhered to the inner wall of the spiral air inlet pipe, and water flow is formed finally as more water mist particles are accumulated and pressed on the inner wall of the spiral air inlet pipe, so that the purposes of dust removal and gas-liquid separation are achieved, the air flow can not be reduced, and the air pressure is maintained.

2. According to the invention, through the mixing of water mist and gas, air can be subjected to heat exchange rapidly, the temperature of air flow is reduced, the temperature of air finally flowing into the compressor is reduced, the temperature reduction effect on the interior of the compressor with rapid temperature rise is favorably provided, and through the arrangement of the backflow device, water flow can be rapidly discharged back to the water storage bin by clamping dust, the water supply quality of the water pump is ensured through the arrangement of the second filter screen, and the dust can be rapidly and intensively removed in the cleaning process through the arrangement of the first filter screen, so that the cleaning and maintenance efficiency is improved.

3. According to the invention, the fan of the air inlet fan is connected with the main shaft of the compressor, the main shaft of the compressor drives the impeller to rotate and simultaneously drives the fan blades in the air inlet fan to rotate synchronously, so that the flow speed of the external airflow of the compressor of the air inlet fan is increased, the air pressure of the air inlet of the compressor is increased, and the air inlet efficiency of the compressor is greatly improved, thereby improving the air compression efficiency.

Drawings

FIG. 1 is an overall schematic view of the structure of the present invention;

FIG. 2 is a schematic structural view of a spiral air inlet pipe according to the present invention;

FIG. 3 is a schematic illustration of the first and second screens of the present invention disassembled;

FIG. 4 is a disassembled view of the reflux unit of the present invention;

FIG. 5 is a top view of the internal structure of the insulating cylinder of the present invention;

FIG. 6 is a sectional view showing the inner structure of the insulating cylinder according to the present invention;

FIG. 7 is a top view of the overall structure of the present invention;

fig. 8 is a schematic view of a bone fragment inside the spiral inlet tube of the present invention.

In the figure: 1. a compressor; 2. an air intake fan; 3. an air intake hood; 31. a flow guide pipe; 32. an atomizing nozzle; 4. a spiral air inlet pipe; 41. bone chips; 5. a reflux device; 51. a housing; 52. a mounting frame; 53. a water permeable net; 54. a baffle plate; 55. a water delivery pipe; 6. a water storage bin; 61. a first filter screen; 7. an isolation cylinder; 71. a water permeable plate; 8. a second filter screen; 81. a metal side frame; 82. filtering cloth; 9. and (4) a water pump.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1 to 8, in the embodiment of the present invention, a high-speed centrifugal air compressor capable of performing air inlet pressurization includes a compressor 1, an air inlet fan 2 is fixedly connected to an air inlet of the compressor 1, a transmission main shaft of the compressor 1 penetrates through the air inlet of the compressor 1 and is in transmission connection with air supply blades inside the air inlet fan 2, the air inlet of the air inlet fan 2 is fixedly communicated with a backflow device 5, the air inlet end of the backflow device 5 is fixedly communicated with a spiral air inlet pipe 4, an isolation cylinder 7 is arranged inside the spiral air inlet pipe 4, water is filled in the bottom of an inner cavity of the isolation cylinder 7 and provided with a water pump 9, an atomizing nozzle 32 is arranged on an outer surface of the air inlet hood 3, the atomizing nozzle 32 supplies water through the water pump 9, the water pump 9 can be communicated with the atomizing nozzle 32 through a water pipe, so that water mist is sprayed at an opening of the atomizing nozzle 32, most of the water mist with dust entrained in the inner cavity of the air inlet hood 3 due to impact with the inner wall and impact between the water mist, the water can be condensed into water, and discharged through a flow guide pipe 31 After that, the remaining part water smoke is through in the inner chamber of spiral intake pipe 4, do the spiral downstream along with the air current direction, then come the analysis from single water smoke granule, it is because the quality is higher, can finally be got rid of on the inner wall of spiral intake pipe 4 because of the centrifugal trend in the spiral motion, take the dust adhesion on the inner wall of spiral intake pipe 4, along with more water smoke granules overstock on the inner wall of spiral intake pipe 4, can finally form rivers and flow away, the spiral height of spiral intake pipe 4 can be along with proper adjustment, thereby reach best dewatering state.

Wherein, the below of spiral intake pipe 4 is equipped with water storage storehouse 6, and the bottom of 3 inner chambers of air inlet cover is through the fixed inner chamber that communicates in water storage storehouse 6 of honeycomb duct 31, and the bottom of 5 inner chambers of backward flow ware is through the fixed inner chamber that communicates in water storage storehouse 6 of raceway 55, and the inside rivers of air inlet cover 3 and backward flow ware 5 can be arranged respectively in water storage storehouse 6 through honeycomb duct 31 and raceway 55.

Wherein, an isolation cylinder 7 fixed mounting is in the top of water storage storehouse 6, and the bottom of isolation cylinder 7 is equipped with one deck porous disk 71, and the bottom fixed mounting of porous disk 71 has No. two filter screens 8, and water pump 9 is settled at the top of porous disk 71, and porous disk 71 can permeate water.

Wherein, No. two filter screens 8 are including metal side frame 81 and filter cloth 82, metal side frame 81 passes through screw fixed mounting in the bottom of porous disk 71, the inner ring of metal side frame 81 is located to filter cloth 82, known from above-mentioned information, the inner chamber of isolating cylinder 7 is run through from top to bottom in fact, then when the water level in the inner chamber of reservoir 6 is higher than porous disk 71, the inside water level of isolating cylinder 7 should be higher than porous disk 71 when also, because water pump 9 can be with the reason that the moisture in the isolating cylinder 7 inner chamber was taken out, the water level needs constantly to be replenished for keeping with the same height in the external world in isolating cylinder 7, so filter cloth 82 can play a filterable effect than that, will separate the dust in the rivers that pass through filter cloth 82, prevent to enter into the inner chamber of isolating cylinder 7, guarantee that the water that water pump 9 extracted is clean.

Wherein, the bottom of the 6 inner chambers in reservoir storehouse slides and installs a filter screen 61, a filter screen 61 also sets up in the below of No. two filter screens 8 simultaneously, thereby a filter screen 61 can be taken out outwards and break away from the inside of reservoir storehouse 6, the rectangle opening that supplies a filter screen 61 business turn over is seted up on the surface of reservoir storehouse 6, and this rectangle opening is put in place by the outside frame shutoff of a filter screen 61 after a filter screen 61 inserts to the target in place, the effect of a filter screen 61 is the inside dust of the clearance of being convenient for, take out through the water in the reservoir storehouse 6 of water pump 9 during the clearance, the dust also can fall the filter screen top of a filter screen 61 along with the water level decline, directly take out a filter screen 61 outside, the dust can be concentrated on the top of a filter screen 61 and be taken out together.

Wherein, the backward flow ware 5 is still including dustcoat 51, the mounting bracket 52, net 53 and separation blade 54 permeate water, the mounting bracket 52 sets up in the inner chamber of dustcoat 51, net 53 fixed connection permeates water is in the inboard of mounting bracket 52, separation blade 54 covers the tip of dustcoat 51, dustcoat 51 and separation blade 54 pass through bolt and air inlet fan 2's air inlet fixed connection, the other end of dustcoat 51 is fixed to be communicated in the bottom opening of spiral intake pipe 4, the rivers that the pipeline inner wall of spiral intake pipe 4 flows down can flow to net 53 permeate water, then in permeating through net 53 that permeates water and flowing back to reservoir 6 along raceway 55.

Wherein the mounting frame 52 is in the shape of an equidistant annular grid, the outer side of the water permeable net 53 is directly exposed in the inner cavities of the outer cover 51 and the mounting frame 52, the water permeable net 53 can allow dust with the average diameter of 0.0001mm to 0.01mm to pass through, the fact that dust can pass through the net does not mean that air can be directly and smoothly sucked in, and the water permeable net 53 is obviously in a soaked state in the use process, so that the air permeability is greatly limited, the outside air flow does not substantially enter from outside the water-permeable mesh 53, but since the liquid in the lumen can flow out, so that dust particles with a diameter of between 0.0001mm and 0.01mm can flow out of the water-permeable net 53, i.e. the dust can flow away through the water-permeable net 53 along the water duct 55, thus, the discharge speed of the water flow in the spiral air inlet pipe 4 can be improved, the overstocked water and even overflow can be avoided, and the overstocked dust and even the thickness of the dust on the inner side of the water permeable net 53 can be prevented.

Wherein, be provided with bone piece 41 on the inner chamber wall of spiral intake pipe 4, bone piece 41 extends until the bottom opening part of spiral intake pipe 4 along the spiral direction of spiral intake pipe 4, and bone piece 41's effect is in order to increase the inside surface area of spiral intake pipe 4, increases the probability that water smoke and spiral intake pipe 4 inner wall contacted in the removal through the mode that improves inside surface area to make the drop of water more easily through contact condensation become rivers.

Wherein, atomizing nozzle 32 is installed on the cover 3 that admits air altogether threely, and three atomizing nozzle 32 is annular equidistance distribution in the outside of admitting air cover 3, and three atomizing nozzle 32 equidistance distribution can be fully filled spun water smoke to each corner in the cover 3 inner chamber that admits air, can make the dust that enters into in the cover 3 inner chamber of admitting air immediately by drop of water particle parcel.

The inner cavity of the air inlet hood 3 is in the shape that the calibers of the two ends are small and the caliber of the middle part is large, the atomizing nozzle 32 is installed in the middle part of the air inlet hood 3, the guide pipe 31 is fixedly installed at the bottom of the middle part of the air inlet hood 3, the air inlet hood 3 can concentrate the water condensed in the air inlet hood 3 to the bottom of the middle part of the air inlet hood 3 through the guide by the aid of the design, and the depth of the bottom of the middle part of the air inlet hood 3 is the largest, so that the water flow can be discharged along the guide pipe 31.

The working principle and the using process are as follows:

the compressor 1 sucks air from the outside, so that air flow outside the air inlet hood 3 flows to the inner cavity of the air inlet hood 3, the atomizing nozzle 32 is arranged on the outer surface of the air inlet hood 3, water is supplied to the atomizing nozzle 32 through the water pump 9, the water pump 9 can be communicated with the atomizing nozzle 32 through a water pipe, water mist is sprayed at the opening of the atomizing nozzle 32, a part of water mist wraps dust in the inner cavity of the air inlet hood 3 and is condensed into water to be discharged through the flow guide pipe 31 due to impact between the dust and the inner wall, the rest of water mist passes through the inner cavity of the spiral air inlet pipe 4 and moves downwards spirally along with the air flow direction, the water mist has higher quality due to self wrapping dust, is thrown to the inner wall of the spiral air inlet pipe 4 due to the centrifugal tendency in the spiral movement, the dust adheres to the inner wall of the spiral air inlet pipe 4, and is accumulated on the inner wall of the spiral air inlet pipe 4 along with more water mist particles, finally, water flow is formed and flows away, and the water is guided to flow back to the water storage bin 6 in the return device 5, so that the water is recycled, and the water quality separation effect is good.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.