CN105817099B - Gas purifier and method of operation - Google Patents

Abstract

The invention relates to a gas purifier and a working method thereof, wherein the gas purifier comprises: the hollow shaft is rotationally matched in the shell, a filter cartridge for filtering gas is fixedly sleeved on the hollow shaft, the bottom of the filter cartridge is closed, and the top end of the filter cartridge is provided with an opening; a plurality of water spraying holes are distributed on the wall body around the hollow shaft in the filter cartridge, and the top end part of the hollow shaft is used for connecting a high-pressure water source so that each water spraying hole sprays high-pressure water to the inner wall of the filter cartridge; the hollow shaft is in transmission fit with a transmission mechanism so as to enable the filter cartridge to rotate; the opening part at the top end of the filter cylinder is in rotary sealing fit with the inner wall of the shell through a sealing mechanism; and an air inlet used for inputting gas to be purified is arranged on the wall body of the shell and below the sealing mechanism, and an air outlet communicated with the opening part of the filter cylinder is arranged on the wall body of the shell.

Description

Gas purifier and method of operation

technical field

The invention relates to a gas purifier, which filters the gas containing impurities such as particles.

Background technique

Gas purifiers in the prior art generally use filter cotton or activated carbon for multiple layers of filtration to adsorb particulate matter and harmful components in the gas. However, as the number of adsorbed particulate matter and impurities increases, the filter cotton or activated carbon The pores of the filter will be blocked, which will affect its filtration performance.

Contents of the invention

The technical problem to be solved by the present invention is to provide a gas purifier and its working method, which can prevent the filter cartridge from being blocked by particles or impurities while purifying the air.

In order to solve the above-mentioned technical problems, the present invention provides a gas purifier, which includes: a closed casing, a hollow shaft arranged longitudinally is rotatably fitted in the casing, and a fixed sleeve is provided on the hollow shaft (preferably arranged concentrically with the central axis) ) filter cartridge for filtering gas, and the bottom of the filter cartridge is closed and the top has an opening; in the filter cartridge, there are a plurality of water spray holes distributed on the walls around the hollow shaft, and the top of the hollow shaft The part is used to connect the high-pressure water source (preferably: use a high-pressure water pump to connect the tap water pipe, or groundwater, etc.), so that each water spray hole sprays high-pressure water to the inner wall of the filter cartridge; the hollow shaft is driven and matched with a transmission mechanism to The filter cartridge is rotated; the opening at the top of the filter cartridge and the inner wall of the housing are rotated and sealed through a sealing mechanism; the wall of the housing and below the sealing mechanism are provided with a valve for inputting the gas to be purified The air inlet is provided on the wall of the casing with an air outlet communicating with the opening of the filter cartridge.

In the housing and above the air inlet and below the filter cartridge, a sprinkler for spraying water is provided; a primary filter material layer is provided below the sprinkler; in the housing, below the primary filter material layer One or more rotating filter blades are fixedly connected to the hollow shaft of the rotating filter blade, and a plurality of mesh holes are distributed on the rotating filter blade, and the water from the sprayer can be atomized when the rotating filter blade rotates.

The housing is provided with a water storage tank at the lower end of the air inlet; the water storage tank includes upper and lower boxes; a filter layer is arranged between the upper and lower boxes, and a funnel is arranged in the upper box, and the funnel The top opening of the funnel is connected to the top inner wall of the upper box, and the bottom opening of the funnel is connected to the opening on the filter screen; the bottom of the lower box is provided with a drain valve; the water outlet on the side wall of the upper box is connected to the sprinkler through a water pump connected.

Below each rotating filter blade and above the air inlet is provided with a gas distribution plate for evenly distributing the air flow, each rotating filter blade is rectangular, and one side of each rotating filter blade is connected to the hollow shaft superior.

The exhaust port of the casing is connected with an induced fan, and/or the air inlet of the casing is connected with a blower. The sprayer is fixed on the hollow shaft; the water pump communicates with the bottom port of the hollow shaft through a rotary joint, and a partition is arranged in the hollow shaft above the sprayer. A water inlet is provided in the middle of the shower, and the shower is fixed in the hollow shaft, and the water inlet of the shower communicates with the central through hole of the hollow shaft. Or, the water pump is directly connected to the middle of the sprinkler through a pipeline.

The sealing mechanism is a water sealing mechanism, including: a first annular groove with an opening facing upwards on the inner wall adjacent to the top of the housing, a second annular groove with an opening facing downwards at the top of the filter cartridge, and a second annular groove with an opening facing downwards on the top of the filter cartridge. The outer ring wall of the annular groove is arranged in the first annular groove, and liquid for sealing is arranged in the first annular groove.

A further preferred solution is that the filter cartridge includes a plurality of cylinders that are concentric with each other and are sheathed alternately. Only the outermost cylinder and the top inner wall of the housing are in rotation and sealing cooperation through a sealing mechanism. The diameter of the micropores gradually becomes smaller in the direction of gas travel, thereby improving the filtering effect; a coiled high-pressure water spray pipe is provided in the gap between adjacent cylinders, which is used to spray water on the inner wall of the corresponding cylinder; each The bottom end of the cylinder body is closed, and the top ends of adjacent cylinder bodies are sealed and connected. Only the top port of the innermost cylinder communicates with the exhaust port on the top wall of the casing; the coiled high-pressure water spray pipe is connected with the water inlet of the hollow shaft.

The working method of the above-mentioned gas purifier includes: the gas to be purified is input into the casing from the air inlet, and enters the filter cartridge radially from the outside of the filter cartridge under the action of air pressure, and part of the particles or oil in the gas is adhered to the filter cartridge. On the outer wall of the cartridge, the water spray hole on the hollow shaft sprays water to the inner wall of the filter cartridge at regular intervals or all the time; at the same time, the hollow shaft drives the filter cartridge to rotate, so that the water in the filter cartridge passes through the filter cartridge under centrifugal force. The micropores on the wall of the filter cartridge reach the outer wall of the filter cartridge, and wash away the particles adhering to the outer wall of the filter cartridge, and the particles fall with the water to the water storage tank at the bottom of the housing.

The working method also includes: the water in the upper box at the bottom of the housing is pumped to the shower in the housing; the hollow shaft drives the filter mesh to rotate, and the filter mesh atomizes the water from the shower ; Atomized water droplets absorb part of the particles in the gas to be purified, and make a water storage tank that falls to the bottom of the housing under gravity; the water in the upper tank is also sent to the top of the hollow shaft through a water pump; or, the The top end of the hollow shaft is connected with another high-pressure water supply device.

The working method of the above-mentioned gas purifier includes: the gas input into the casing from the air inlet passes through the gas distribution plate, and then goes upwards evenly; part of the particles in the gas are mixed with the mist generated by the filter, and fall to the bottom under the force of gravity. The water storage tank at the bottom of the shell; another part of the particles in the gas is filtered upward through the primary filter material layer, and the gas continues upward, and enters the filter cartridge radially from the outside of the filter cartridge under the action of air pressure, and the remaining particles or oil in the gas are stuck Attached to the outer wall of the filter cartridge; the water spray hole on the hollow shaft sprays water to the inner wall of the filter cartridge; at the same time, the hollow shaft drives the filter cartridge to rotate, so that the water in the filter cartridge passes through the filter cartridge under centrifugal force The micropores on the wall of the filter cartridge reach the outer wall of the filter cartridge and wash away the particulate matter adhering to the outer wall of the filter cartridge; the water mixed with particulate matter passes through the primary filter material layer and the gas distribution plate in turn, and then enters the storage tank. The water entering the water storage tank enters the lower box body through the funnel, the water in the lower box body enters the upper box body after being filtered by the filter layer, and the water pump sends the water in the upper box body to the sprinkler and/or the hollow shaft.

Compared with the prior art, the present invention has the following technical effects: (1) When the gas purifier is working, the gas to be purified that enters the casing from the outside passes through the wall of the filter cartridge and enters the filter cartridge; It is bonded on the outer wall of the filter cartridge; at the same time, the filter cartridge is driven to rotate, and the water spray hole on the hollow tube in the filter cartridge sprays water, and the water passes through the wall of the filter cartridge under the action of centrifugal force, and is adsorbed on the filter cartridge Particles, oil and other impurities on the outer wall are washed to ensure that the filter cartridge is not blocked, and its air filtering performance is always in good condition; (2) The upper and lower tanks of the water storage tank are separated by a filter layer, and a funnel is used to collect waste water Send waste water directly into the lower box; the filter layer is suitable to prevent impurities or particles in the lower box from floating to the upper box, so as to avoid being sucked by the water pump and ensure the water quality of the water for spraying and cleaning the filter cartridge; (3) Rotary filter During the rotation process, the mesh on the blade is hit with the water or cleaning liquid sprayed by the sprinkler and becomes a mist liquid. The mist liquid combines with larger particles, oil and other impurities in the gas and flows back to the water storage tank. So as to realize the primary filtration of the gas; (4) The water pump takes water from the upper box above the filter layer to prevent the impurities deposited at the bottom of the water storage tank from being sent to the sprayer for spraying, ensuring that the sprayed is clean liquid, Further improve the effect of primary filtration; (5) The top and the middle part of the housing are provided with brackets respectively, and the brackets cooperate with the hollow shaft bearings to support the hollow shaft; (6) The preferred solution is that the filter cartridge includes the same The central axis and multiple cylinders are set alternately. Only the outermost cylinder and the top inner wall of the shell are rotated and sealed through the sealing mechanism. The diameter of the micropores of each cylinder gradually becomes smaller in the direction of gas travel. , so as to improve the filtering effect; there is a coiled high-pressure water spray pipe in the gap between adjacent cylinders, which is used to spray water on the inner wall of the outer ring cylinder; the water and small particles between adjacent cylinders flow from the outer ring cylinder thrown out of the micropores of the body. (7) An optional solution is that air pressure sensors are provided inside and outside the filter cartridge, and the water pump is only turned on when the air pressure inside and outside the filter cartridge is greater than the preset value, thereby reducing the operating cost of the equipment; (8) sealing Mechanism 1 is used to prevent gas from passing through the gap between the filter cartridge and the inner wall of the housing, so as to ensure that unqualified gas is filtered through the filter cartridge.

Description of drawings

Fig. 1 is the axial sectional structure schematic diagram of the gas purifier among the present invention;

Fig. 2 is a partial cross-sectional view of another embodiment of the gas purifier in the present invention.

Detailed ways

As shown in Figure 1, the gas purifier of the present invention includes: a water storage tank 1, a filter layer 2, a partition 3, a rotary joint 4, a water pump 5, a gas distribution plate 6, a shower 7, a drain valve 8, a high-pressure water spray Pipe 9, closed housing 10, rotating filter blade 11, hollow shaft 12, filter cartridge 13, primary filter material layer 14, sealing mechanism 15, bracket 16, air inlet 17, air outlet 18, motor 21.

The housing 10 is cylindrical, and the hollow shaft 12 arranged longitudinally is rotatably fitted in the housing 10 and arranged concentrically with the housing 10. The hollow shaft 12 is fixedly sleeved with a filter cartridge 13 for filtering gas, and the filter The bottom of the cylinder 13 is closed and the top end is open.

In the filter cartridge 13, a plurality of water spray holes are distributed on the walls around the hollow shaft 12, and the top end of the hollow shaft is used to connect a high-pressure water source, so that each water spray hole is directed toward the wall of the filter cartridge. High-pressure water spray on the inner wall;

The hollow shaft 12 cooperates with a transmission mechanism to rotate the filter cartridge 13; specifically, the motor 21 is connected to the top of the hollow shaft 12 via a pulley, or a gear or a sprocket can be used for transmission connection.

The opening at the top of the filter cartridge 13 and the inner wall of the housing 10 are tightly fitted by a sealing mechanism 15; the wall of the housing 10 and below the sealing mechanism are provided with an inlet for inputting the gas to be purified. The air port 17 is provided with an exhaust port 18 communicated with the opening of the filter cartridge on the wall of the casing 10 .

In the housing 10 and above the air inlet, below the filter cartridge 13, a shower 7 for spraying water is provided; the shower 7 below is provided with a primary filter material layer 14; 1. The hollow shaft 12 below the primary filter material layer 14 is fixedly connected with one or more rotating filter screen blades 11. A plurality of mesh holes are distributed on the rotating filter screen blade 11. When the rotating filter screen blade 11 rotates, the The water atomization of the sprayer 7.

The housing 10 is provided with a water storage tank 1 at the lower end of the air inlet; the water storage tank 1 includes an upper and a lower box; a filter layer 2 is arranged between the upper and lower boxes, and a filter layer 2 is arranged in the upper box. Funnel, the top opening of the funnel is connected with the top inner wall of the upper box, the bottom opening of the funnel is connected with the opening on the filter screen; the bottom of the lower box is provided with a drain valve; the water outlet on the side wall of the upper box is connected to the water pump 5 The showers 7 are connected.

Below each rotating filter screen blade 11 and above the air inlet is provided with a gas equalizer plate 6 for evenly distributing air flow, each rotating filter screen blade 11 is rectangular, and one side of each rotating filter screen blade 11 is connected to On the hollow shaft 12 ; the top and middle part of the housing 10 are respectively provided with brackets 16 , and each bracket is matched with the hollow shaft bearing.

The inner wall of the filter cartridge 13 is fixedly connected with the hollow shaft 12 through an intermediate bracket.

The exhaust port of the housing 10 is connected to an induced fan 20, and/or the air inlet of the housing 10 is connected to a blower.

The sprayer 7 is fixed on the hollow shaft 12; the pipeline connected to the water pump 5 communicates with the bottom port of the hollow shaft 12 through a rotary joint 4, and the hollow shaft 12 is inside the hollow shaft 12. A partition 3 is provided above the shower 7 , the shower 7 is fixed on the hollow shaft 12 , and the water inlet of the shower 7 communicates with the central through hole of the hollow shaft 12 . Or, the water pump 5 is directly connected to the water inlet in the middle of the shower 7 through a pipeline.

The sealing mechanism 15 is a water sealing mechanism, comprising: a first annular groove disposed on the inner wall adjacent to the top of the housing 10 with an opening facing upwards, and a second annular groove disposed on the top of the filter cartridge 13 with an opening facing downwards , the outer ring wall of the second annular groove is set in the first annular groove, and the first annular groove is provided with liquid for sealing.

Example 2

On the basis of Embodiment 1, there are the following modifications in this embodiment:

As shown in Fig. 2 , the filter cartridge 13 includes a plurality of cylinders that are concentric with each other, and only the outermost cylinder 131 and the top inner wall of the housing 10 are in rotation and sealing fit through the sealing mechanism 15, and each cylinder The diameter of the micropores on the body wall gradually becomes smaller in the direction of gas travel; a coiled high-pressure water spray pipe 9 is provided in the gap between adjacent cylinders for spraying water on the inner wall of the corresponding cylinder; The bottom of the cylinder is closed, and the top of the adjacent cylinder is sealed and connected; only the top port of the innermost cylinder 132 communicates with the exhaust port on the top wall of the housing 10; the coiled high-pressure water spray pipe 9 links to each other with the water inlet of described hollow shaft 12.

Example 3

A working method of the gas purifier described in the above embodiment 1 or 2, comprising: the gas to be purified is input into the housing 10 from the air inlet, enters the filter cartridge radially from the outside of the filter cartridge 13 under the action of air pressure, Part of the particles or oil in the gas is adhered to the outer wall of the filter cartridge 13, and the water spray hole on the hollow shaft sprays water to the inner wall of the filter cartridge at regular intervals or all the time;

At the same time, the hollow shaft drives the filter cartridge to rotate, so that the water in the filter cartridge passes through the micropores on the wall of the filter cartridge under centrifugal force, reaches the outer wall of the filter cartridge, and scours the outer wall of the filter cartridge particulate matter on.

The water in the upper box at the bottom of the housing 10 is sent to the shower 7 in the housing 10 through the water pump 5;

The hollow shaft 12 drives the filter mesh 11 to rotate, and the filter mesh 11 atomizes the water from the shower 7;

The atomized water droplets absorb part of the particles in the gas to be purified, and fall to the water storage tank 1 at the bottom of the housing 10 under gravity;

The water in the upper box is sent to the top end of the hollow shaft by the water pump 5; or, the top end of the hollow shaft is connected with another high-pressure water source supply device.

Example 4

On the basis of the above-mentioned embodiment 1 or 2 or 3, the working method of the gas purifier specifically includes: the gas input into the casing 10 from the air inlet passes through the gas equalizing plate 6, and goes upward evenly; Part of the particulate matter is mixed with the mist generated by the filter screen 11, and falls to the water storage tank 1 at the bottom of the housing 10 under gravity; another part of the particulate matter in the gas is filtered upward through the primary filter material layer 14, and the gas continues upward. Under the action, it enters the filter cartridge radially from the outside of the filter cartridge 13, and the remaining particles or oil in the gas are adhered to the outer wall of the filter cartridge 13; the water spray hole on the hollow shaft 12 sprays water to the inner wall of the filter cartridge ;

At the same time, the hollow shaft drives the filter cartridge to rotate, so that the water in the filter cartridge passes through the micropores on the wall of the filter cartridge under centrifugal force, reaches the outer wall of the filter cartridge, and scours the outer wall of the filter cartridge The particulate matter on the filter cartridge, so that the micropores on the filter cartridge will not be blocked and its filtering ability will not be attenuated. The water mixed with particles passes through the primary filter material layer 14 and the gas distribution plate 6 downwards, and then enters the water storage tank 1 .

Apparently, the above-mentioned embodiments are only examples for clearly illustrating the present invention, rather than limiting the implementation of the present invention. For those of ordinary skill in the art, on the basis of the above description, other changes or changes in different forms can also be made. It is not necessary and impossible to exhaustively list all the implementation manners here. And these obvious changes or modifications derived from the spirit of the present invention are still within the protection scope of the present invention.

Claims (1)

1. A gas purifier, characterized in that it comprises: a closed housing (10), a longitudinally arranged hollow shaft (12) is rotatably fitted in the housing (10), and the hollow shaft (12) is fixedly sleeved with a A filter cartridge (13) for filtering gas, and the bottom of the filter cartridge (13) is closed and the top has an opening; In the filter cartridge (13), a plurality of water spray holes are distributed on the surrounding walls of the hollow shaft (12). Spray high-pressure water on the inner wall of the filter cartridge; The hollow shaft (12) is in transmission cooperation with a transmission mechanism to make the filter cartridge (13) rotate; The opening at the top of the filter cartridge and the inner wall of the housing (10) are rotationally and tightly fitted by a sealing mechanism (15); An air inlet for inputting the gas to be purified is provided on the wall of the housing (10) and below the sealing mechanism, and an opening with the filter cartridge is provided on the wall of the housing (10). Connected exhaust ports; A sprinkler (7) for spraying water is provided in the housing (10) above the air inlet and below the filter cartridge; A primary filter material layer (14) is arranged below the sprinkler (7); a plurality of rotating filter blades (11) are fixedly connected to the hollow shaft (12) in the casing (10) and below the primary filter material layer (14). ), the rotating filter blade (11) is distributed with a plurality of mesh holes, and the rotating filter blade (11) can atomize the water from the sprinkler (7) when rotating; The housing (10) is provided with a water storage tank (1) at the lower end of the air inlet; the water storage tank (1) includes upper and lower boxes; a filter layer (2) is provided between the upper and lower boxes ), the upper box is provided with a funnel, the top opening of the funnel is connected with the top inner wall of the upper box, the bottom opening of the funnel is connected with the opening on the filter layer (2); the bottom of the lower box is provided with a drain valve; The water outlet on the side wall of the upper box is connected to the sprinkler (7) through the water pump (5); Below each rotating filter blade (11) and above the air inlet is provided with a gas equalizer plate (6) for evenly distributing the air flow, each rotating filter blade (11) is rectangular, each rotating filter One side of the blade (11) is connected to the hollow shaft (12); The top and the middle part of the housing (10) are respectively provided with brackets, and each bracket cooperates with the hollow shaft bearing; The exhaust port of the casing (10) is connected with an induced draft fan (20); The sprayer (7) is fixed on the hollow shaft (12); the water pump (5) communicates with the bottom port of the hollow shaft (12) through a rotary joint (4), and the hollow shaft (12) is provided with a partition (3) above the sprinkler (7), the sprinkler (7) is fixed on the hollow shaft (12), and the sprinkler (7) The water inlet communicates with the central through hole of the hollow shaft (12).