WO2022011490A1 - Air filter structure having dust removal and dirt discharge device - Google Patents

Abstract

Disclosed is an air filter structure having a dust removal and dirt discharge device. The air filter structure is also provided with a blowback dust removal pipe and a dirt discharge pipe (35), in addition to having a fan (1) used for filtering air and a dust remover (12). After the air filter structure is started, the vast majority of filtered clean air enters a room via a clean air outlet (23), and a small portion of the clean air blows back dirt in the dust remover (12) via the blowback dust removal pipe, such that the dirt is blown into the dirt discharge pipe (35) and is discharged outside.

Description

An air filter structure with dust removal and sewage discharge device technical field

The invention is applied to the field of air filtration, in particular to an air filter structure with a dust-removing and sewage-discharging device.

Background technique

In the currently used air filter, the dirty air passes through the filter in one direction, the filtered clean air is discharged from the filter, and the filtered dirt is accumulated inside the filter. The disadvantage of this structure is: as the use time increases, more and more dirt will adhere to the filter, which will soon block the filter, resulting in a short service life of the filter, and the filter must be cleaned or replaced frequently In order to ensure the filtering effect, the maintenance and use costs will increase.

SUMMARY OF THE INVENTION

The purpose of the present invention is to overcome the above-mentioned deficiencies of the prior art and provide a cost-saving air filter structure with a dust-removing and sewage-discharging device, which is simple in structure and improves the service life of the filter.

Technical solution of the present invention

The technical scheme of the present invention is: an air filter structure with a dust removal and sewage discharge device. The main components of the equipment include a fan composed of a motor and a fan impeller, an outdoor air inlet pipe, an indoor air inlet pipe, an outdoor air inlet pipe and an indoor air inlet pipe. Mixer, dust collector, filtered clean air outlet, blowback dust removal pipe and sewage pipe. The upper opening of the dust collector is connected with the air inlet pipe as the air inlet. The air inlet cavity, the pre-filter, the cavity between the pre-filter and the fine filter, the fine filter and the odor adsorption device and the outlet, the pre-filter and the fine filter are arranged in sequence in the dust collector. The direction of the filter inlet and the odor adsorption device are all facing the room, and they are placed at an inclination opposite to the outlet of the dust collector. The preferred angle of inclination is 85 degrees with the horizontal plane. Inside; the outlet of the dust collector is set at the upper position of the back of the dust collector and is connected to the fan cabin, and the fan cabin is connected to the clean air outlet and the blowback dust removal pipe; the air inlet cavity in the dust collector, the cavity between the primary filter and the fine filter are two. The side is open, and the air knife is placed at the opening to connect with the blowback dust pipe; the lower opening of the dust collector is connected with the dust box, and the bottom of the dust box has a sewage outlet connected with the sewage pipe to the outside; the air inlet pipe is placed at the rear of the dust collector , the outdoor air inlet pipe and the sewage pipe share a large wall-penetrating pipe through the wall. When the device of the present invention is turned on, the fan rotates to exhaust air to the clean air outlet, so a negative pressure is formed in the dust collector connected to the fan cabin, and the air is sucked by the outdoor air inlet. After entering the device of the present invention, the dirty air passes through the air inlet. The passage is led to the upper opening of the dust collector by bypassing the fan at the rear of the dust collector. First, it enters the air inlet chamber of the dust collector from the air inlet of the dust collector. The dirt filtered by the primary filter remains in the air inlet chamber. The air enters the cavity between the primary filter and the fine filter, and the dirt filtered by the fine filter remains in the cavity between the primary filter and the fine filter. The clean air filtered by the fine filter and the odor adsorption device flows through the fan from the outlet of the dust collector. Most of the clean air flows out of the clean air outlet and enters the room, and a small part of the clean air is guided by the V-shaped air deflector and blown back through the blowback and dust removal pipe. The clean air blowing back part accounts for the total clean air. The preferred ratio is 20%, which enters the air inlet cavity of the precipitator and the cavity between the primary filter and the fine filter from the side opening of the precipitator, and the dirt left after filtering the two cavities by the air knife is sent to the lower part of the precipitator. Blowing in the direction of the opening will drive the dirt to enter the dust collecting box from the lower opening of the dust collector, and then be discharged from the sewage outlet at the bottom of the dust collecting box into the sewage pipe to be discharged outdoors. In order to increase the decontamination force, a small fan can also be added to the blowback duct to increase the blowback force. Because most of the dirt will be discharged, it will not accumulate in the filter and cause blockage, thereby increasing the service life of the filter and reducing maintenance and use costs. The device of the invention has a built-in outdoor air inlet and indoor air inlet mixer, which are respectively connected with the outdoor air inlet pipe and the indoor air inlet pipe. The outdoor air inlet pipe and the indoor air inlet pipe are respectively equipped with control valves. It can realize different working modes such as fresh air fan mode with pure outdoor air intake filtration, air purifier mode with pure indoor air intake filtration, and outdoor and indoor mixed air intake filtration. The mixed filtration of indoor air intake and outdoor air intake can realize the heat recovery function. The outdoor air intake pipe and the sewage pipe share the same through-wall pipe, and the outdoor air intake pipe and the sewage pipe are close together. The drain pipe recovers some of the heat.

Advantages of this scheme

The above scheme has the following advantages: (1) the life of the filter is greatly extended; (2) the structure is simple; (3) the energy is saved, first of all, the accumulation of dirt on the surface of the filter is reduced, the air passing rate is improved, and the motor load is reduced to save energy; Secondly, the heat energy can be recovered by mixing the outdoor air inlet pipe and the indoor air inlet pipe, and part of the heat can also be recovered by the sewage pipe when the outdoor air inlet pipe enters the air.

The beneficial effects of the present invention

The beneficial effects of the present invention: on the one hand, the air can be effectively filtered; on the other hand, because the filtered dirt is discharged from the filter sewage channel in time, the service life of the filter is greatly prolonged, and the structure is simple, no manual or electric control is required, and the motor is reduced. The load saves energy, labor and money.

Description of drawings

In order to explain the technical solutions of the embodiments of the present invention more clearly, the following briefly introduces the accompanying drawings used in the embodiments. It should be understood that the following drawings only show some embodiments of the present invention, and therefore do not It should be regarded as a limitation of the scope. For those of ordinary skill in the art, obtaining other related embodiments according to these drawings without creative efforts, all belong to the protection scope of the present invention.

1 is a schematic view of the structure of a right side view of a front cover without a casing and a right cover of the present invention;

Fig. 2 is the front structure schematic diagram of the front cover without casing of the present invention;

3 is a schematic top view of the front cover and the left cover without a casing of the present invention;

Fig. 4 is the front structure schematic diagram of the front cover without a casing and the dust collecting box without a dust collector of the present invention;

Fig. 5 is the left side view structure diagram of the dust collector and the dust collecting box shown in Fig. 1;

Fig. 6 is the schematic diagram of the dust collector and the dust collecting box shown in Fig. 1;

7 is a schematic front view of the front cover without a casing according to Embodiment 2 of the present invention;

Fig. 8 is the V-shaped wind deflector structure schematic diagram of the present invention;

FIG. 9 is a schematic structural diagram of the fixing plate of the outdoor air inlet duct shown in FIG. 4;

FIG. 10 is a schematic view of the structure of the fixing pin of the dust collector shown in FIG. 6 .

Reference number: 1. Fan; 2. Fan cabin; 3. Outdoor air inlet pipe; 4. Outdoor air inlet; 5. Outdoor air inlet pipe elbow; 6. Outdoor air inlet and indoor air inlet mixer; 7. Outdoor 8. Indoor air inlet pipe; 9. Indoor air inlet pipe valve control motor; 10. Left branch pipe of air inlet pipe; 11. Right branch pipe of air inlet pipe; 12. Dust collector; Cover; 14, the left air inlet of the dust collector; 15, the right air inlet of the dust collector; 16, the air inlet cavity of the dust collector; 17, the primary filter; 18, the cavity between the primary filter and the fine filter; 19, the fine filter 20, the odor Adsorption device; 21, fixed pin; 22, outlet of dust collector; 23, outlet of clean air; 24, left pipe interface of blowback pipe; 25, right pipe interface of blowback pipe; 26, left pipe of blowback dust removal pipe; 27, blowback dust removal Pipe right pipe; 28. Interface of blowback pipe on the left side of the dust collector; 29. Interface of the blowback pipe on the right side of the dust collector; 30. Left air knife of the dust collector; 31. Right air knife of the dust collector; 32. Dust box; 33. Dust collector Box sewage outlet; 34, sewage connection pipe; 35, sewage pipe; 36, outdoor sewage outlet; 37, control circuit main board; 38, outdoor air inlet pipe fixing plate; 39, shell back cover;

detailed description

In order to make the purposes, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments These are some embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention. Thus, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

Example 1

Please refer to Figure 1, Figure 2, Figure 3, Figure 4, Figure 5, Figure 6, an air filter structure with a dust removal and sewage discharge device, the main components of the equipment include a fan 1 composed of a motor and a fan impeller, and an outdoor air intake duct 3 , Indoor air inlet pipe 8, outdoor air inlet pipe and indoor air inlet pipe mixer 6, dust collector 12, filtered clean air outlet 23, back blowing dust removal pipe left pipe 26, back blowing dust removal pipe right pipe 27 and sewage pipe 35. The upper part of the dust collector 12 has an opening on the left and right sides, forming the left air inlet 14 of the dust collector and the right air inlet 15 of the dust collector, which are connected to the left branch pipe 10 of the air inlet pipe and the right branch pipe 11 of the air inlet pipe; The right branch pipe 11 of the pipe is connected with the outdoor air inlet and the indoor air inlet mixer 6, and the outdoor air inlet and indoor air inlet mixer 6 are connected with the outdoor air inlet pipe 3 and the indoor air inlet pipe 8; The air inlet cavity 16 formed between the upper cover 13 and the pre-filter 17, the pre-filter 17, the cavity 18 between the pre-filter and the fine filter, the fine filter 19 and the odor adsorption device 20 and the outlet 22, the pre-filter 17, the fine filter 19 The direction of the filter inlet of the odor adsorption device 20 is towards the room, and they are placed oppositely to the dust collector outlet 22, preferably the angle of inclination is 85 degrees with the horizontal plane; 21 is fixed inside the dust collector 12; the dust collector outlet 22 is set at the upper position of the back of the dust collector 12 and is connected to the fan cabin 2, the fan cabin 2 is connected to the clean air outlet 23, the left pipe 26 of the blowback dust removal pipe, and the right side of the blowback dust removal pipe The pipe 27 is connected; the air inlet cavity 16 in the dust collector 12, the cavity 18 between the primary filter and the fine filter are open on both sides, and the left air knife 30 is placed at the left opening through the left blowback pipe interface 28 of the dust collector and the blowback dust removal. The left pipe 26 of the pipe is connected, and the right air knife 31 is placed at the opening on the right side to connect with the right pipe 27 of the blowback dust pipe through the interface 29 of the blowback pipe on the right side of the dust collector; the lower opening of the dust collector 12 is communicated with the dust collecting box 32, There is a sewage outlet 33 at the bottom which is connected to the outdoor through the sewage connection pipe 34 and the sewage pipe 35; The fixing plate 38 is fixed on the rear cover 39 of the casing. When the device of the present invention is turned on, the fan 1 rotates to exhaust air to the clean air outlet 23, so a negative pressure is formed in the dust collector 12 connected to the fan cabin 2, and the air is sucked by the outdoor air inlet 4, and the dirty air enters the device of the present invention. Then, through the elbow joint 5 of the outdoor air inlet pipe, the outdoor air inlet and the indoor air inlet mixer 6, along the left branch pipe 10 of the air inlet pipe and the right branch pipe 11 of the air inlet pipe, firstly the left air inlet 14 of the dust collector and the right air inlet of the dust collector The tuyere 15 enters the air inlet chamber 16 of the dust collector, the dirt filtered by the primary filter 17 remains in the air inlet chamber 16, and the air after the primary filter enters the cavity 18 between the primary filter and the fine filter, and is filtered by the fine filter 19. The filtered dirt remains in the cavity 18 between the primary filter and the fine filter. The clean air filtered by the fine filter 19 and the odor adsorption device 20 flows through the fan 1 from the outlet 22 of the dust collector, and most of it is produced by the clean air. The outlet 23 flows out of the equipment of the present invention and enters the room, and a small part of the clean air is blown back through the left pipe interface 24 of the blowback pipe, the right pipe interface 25 of the blowback pipe, and the left pipe 26 of the blowback dust removal pipe and the right pipe 27 of the blowback dust removal pipe. The preferred proportion of part of the clean air to the total clean air is 20%, and the side opening of the dust collector 12 enters the dust collector air inlet chamber 16 through the left side blowback pipe interface 28 of the dust collector and the right side blowback pipe interface 29 of the dust collector. The cavity 18 between the filter and the fine filter, through the left air knife 30 and the right air knife 31, the left air knife 30 and the right air knife 31 filter the dirt left in the two cavities to blow towards the opening of the lower part of the dust collector 12, and the dirt is driven by the lower part of the dust remover 12. The opening enters the dust collecting box 32 , and then is discharged from the sewage outlet 33 at the bottom of the dust collecting box 32 , and enters the sewage discharge pipe 35 through the sewage discharge connecting pipe 34 and is discharged to the outdoor through the outdoor sewage outlet 36 . The device of the present invention has a built-in outdoor air inlet and indoor air inlet mixer 6, which are respectively connected with the outdoor air inlet pipe 3 and the indoor air inlet pipe 8, and control valves are installed in the outdoor air inlet pipe 3 and the indoor air inlet pipe 8 respectively. , Through the control circuit main board 37, the outdoor air inlet pipe valve control motor 7 and the indoor air inlet pipe valve control motor 9 control the opening and closing of the valve, which can realize the fresh air fan mode of pure outdoor air inlet air filtration and pure indoor air inlet air filtration. Different working modes, such as air filter mode and outdoor and indoor mixed air intake filtration.

Example 2

Please refer to Figure 7, an air filter structure with a dust removal and sewage discharge device. The main components of the equipment include a fan 1 composed of a motor and a fan impeller, an outdoor air inlet duct 3, an indoor air inlet duct 8, an outdoor air inlet duct and an indoor air inlet. Tube mixer 6 , dust collector 12 , filtered clean air outlet 23 , left duct 26 of blowback dust removal pipe, right duct 27 of blowback dust removal pipe, sewage pipe 35 and blowback pipe fan 40 . The upper part of the dust collector 12 has an opening on the left and right sides, forming the left air inlet 14 of the dust collector and the right air inlet 15 of the dust collector, which are connected to the left branch pipe 10 of the air inlet pipe and the right branch pipe 11 of the air inlet pipe; The right branch pipe 11 of the pipe is connected with the outdoor air inlet and the indoor air inlet mixer 6, and the outdoor air inlet and indoor air inlet mixer 6 are connected with the outdoor air inlet pipe 3 and the indoor air inlet pipe 8; The air inlet cavity 16 formed between the upper cover 13 and the pre-filter 17, the pre-filter 17, the cavity 18 between the pre-filter and the fine filter, the fine filter 19 and the odor adsorption device 20 and the outlet 22, the pre-filter 17, the fine filter 19 The direction of the filter inlet of the odor adsorption device 20 is towards the room, and they are placed oppositely to the dust collector outlet 22, preferably the angle of inclination is 85 degrees with the horizontal plane; 21 is fixed inside the dust collector 12; the dust collector outlet 22 is set at the upper position of the back of the dust collector 12 and is connected with the fan cabin 2, the fan cabin 2 is connected with the clean air outlet 23 and the blowback pipe fan 40; the blowback pipe fan 40 is connected with the blowback pipe The left pipe 26 of the dust removal pipe and the right pipe 27 of the blowback dust removal pipe are connected; the air inlet chamber 16 in the dust collector 12 and the cavity 18 between the primary filter and the fine filter are opened on both sides, and the left air knife 30 is placed at the left opening to pass the dust removal. The blowback pipe interface 28 on the left side of the filter is connected with the left pipe 26 of the blowback and dust removal pipe, and the right air knife 31 is placed at the opening on the right side to connect with the right pipe 27 of the blowback and dust removal pipe through the right blowback pipe interface 29 of the dust collector; the lower part of the dust collector 12 is opened It is communicated with the dust collecting box 32, and the bottom of the dust collecting box 32 has a sewage outlet 33 which is connected to the outdoor through the sewage connecting pipe 34 and the sewage pipe 35; , the outdoor air inlet pipe 3 is fixed on the rear cover 39 of the casing through the outdoor air inlet pipe fixing plate 38 . When the device of the present invention is turned on, the fan 1 rotates to exhaust air to the clean air outlet 23, so a negative pressure is formed in the dust collector 12 connected to the fan cabin 2, and the air is sucked by the outdoor air inlet 4, and the dirty air enters the device of the present invention. Then, through the elbow joint 5 of the outdoor air inlet pipe, the outdoor air inlet and the indoor air inlet mixer 6, along the left branch pipe 10 of the air inlet pipe and the right branch pipe 11 of the air inlet pipe, firstly the left air inlet 14 of the dust collector and the right air inlet of the dust collector The tuyere 15 enters the air inlet chamber 16 of the dust collector, the dirt filtered by the primary filter 17 remains in the air inlet chamber 16, and the air after the primary filter enters the cavity 18 between the primary filter and the fine filter, and is filtered by the fine filter 19. The filtered dirt remains in the cavity 18 between the primary filter and the fine filter. The clean air filtered by the fine filter 19 and the odor adsorption device 20 flows through the fan 1 from the outlet 22 of the dust collector, and most of it is produced by the clean air. The outlet 23 flows out of the equipment of the present invention and enters the room. A small part of the clean air is pressurized by the blowback pipe fan 40 and then blown back through the left pipe 26 of the blowback dust removal pipe and the right pipe 27 of the blowback dust removal pipe. The clean air in the blowback part accounts for the total. The preferred proportion of the clean air is 20%, from the side opening of the dust collector 12, through the left side blowback pipe interface 28 of the dust collector and the right side blowback pipe interface 29 of the dust collector, into the dust collector air inlet chamber 16 and between the primary filter and the fine filter. In the cavity 18, the left air knife 30 and the right air knife 31 filter the dirt left in the two cavities and blow it towards the lower opening of the dust collector 12, which drives the dirt to enter the dust collecting box 32 from the lower opening of the dust collector 12. Then, it is discharged from the sewage outlet 33 at the bottom of the dust collecting box 32 through the sewage connecting pipe 34 into the sewage pipe 35 and discharged to the outdoor through the outdoor sewage outlet 36 . The device of the present invention has a built-in outdoor air inlet and indoor air inlet mixer 6, which are respectively connected with the outdoor air inlet pipe 3 and the indoor air inlet pipe 8, and control valves are installed in the outdoor air inlet pipe 3 and the indoor air inlet pipe 8 respectively. , Through the control circuit main board 37, the outdoor air inlet pipe valve control motor 7 and the indoor air inlet pipe valve control motor 9 control the opening and closing of the valve, which can realize the fresh air fan mode of pure outdoor air inlet air filtration and pure indoor air inlet air filtration. Different working modes, such as air filter mode and outdoor and indoor mixed air intake filtration.

Claims (8)

An air filter structure with a dust removal and sewage discharge device, the device of the present invention has components such as a motor for air filtration, a dust removal filter and the like, and is characterized in that a blowback dust removal pipe and a sewage pipe are also installed, and the upper part of the dust collector is open. As the air inlet is connected to the air inlet pipe, the air inlet cavity, the primary filter, the cavity between the primary filter and the fine filter, the fine filter and the odor adsorption device and the outlet are arranged in the dust collector in sequence, and the dust collector outlet is arranged on the back of the dust collector. The upper position is connected to the fan cabin, and the fan cabin is connected to the clean air outlet and the blowback dust pipe; the air inlet cavity in the dust collector, the cavity between the primary filter and the fine filter are opened on both sides, and the air knife and the blowback are placed at the opening. The dust removal pipe is connected; the lower opening of the dust collector is communicated with the dust collecting box, and the bottom of the dust collecting box has a sewage outlet connected with the sewage discharge pipe and leads to the outdoors. An air filter structure with a dust removal and sewage discharge device according to claim 1, the dust collector faces indoors, the filter inlet directions of the primary filter, the fine filter and the odor adsorption device all face the room, and the air inlet pipe is placed behind the dust collector. The air inlet channel is connected from the dust collector to the upper part of the dust collector. According to an air filter structure with a dust removal and sewage discharge device according to claim 1, the clean air is divided into three output channels, the middle channel flows into the room, and the left channel and the right channel are respectively connected to both sides of the dust box through the blowback pipe. According to an air filter structure with a dust removal and sewage discharge device according to claim 1, the outdoor air inlet pipe and the sewage discharge pipe share a large wall-penetrating pipe and pass through the wall. According to the structure of an air filter with a dust-removing and sewage-discharging device according to claim 1, a fan is added to the blow-back pipe to increase the wind force for blow-back and dust-removing. A kind of air filter structure with dust removal and sewage discharge device according to claim 1, the back air is controlled by a V-shaped wind deflector for back blowing, and the schematic diagram of the V-shaped wind deflector is shown in accompanying drawing 8. According to the structure of an air filter with a dust removal and sewage discharge device according to claim 1, the outdoor air inlet pipe is fixed on the back cover of the equipment casing of the present invention through the outdoor air inlet pipe fixing plate, and the structure diagram of the outdoor air inlet pipe fixing plate See Figure 9. According to the structure of an air filter with a dust-removing and sewage-discharging device according to claim 1, the components such as the pre-filter are fixed inside the dust collector by means of fixed pins, and the schematic diagram of the structure of the fixed pins is shown in Figure 10.

Images