CN203777533U - Portable dust removal device - Google Patents

Abstract

A portable dust removal device, which relates to the field of haze prevention and control, includes a housing, an air intake pipe communicates with the lower part of the housing, the upper part of the housing communicates with a mask through a connecting pipe, a liquid is provided in the housing, and a gas phase is provided in the inner cavity of the housing. A labyrinth, the gas phase labyrinth is provided with an adsorption layer at least on the windward side. The utility model cooperates with the gas-phase labyrinth and the adsorption layer, wherein the gas-phase labyrinth prolongs the air path and at the same time makes the air turn repeatedly, and the centrifugal force generated by the turning makes the dust in the air contact with the adsorption layer and be absorbed by the adsorption layer. Thereby reducing dust and fine particles in the air. The principles of filtration and spraying in the prior art are different. Compared with filtration, the breathing resistance of the utility model is very small, which hardly affects normal breathing, and can be used continuously by replacing the liquid in the shell and discharging the sediment. , low cost and no pollution to the environment. Compared with spraying, the utility model does not need a power source and a pump, reduces the use cost, and has no noise.

Description

Portable Dust Collector

technical field

The utility model relates to the field of dust removal and haze prevention, in particular to a portable dust removal device for haze prevention.

Background technique

In dusty working conditions, such as working in smoggy weather, most of the protective measures adopted in the prior art are masks or filter masks, and the dust in the air is filtered out by the filter discs in the masks or filter masks. The problem is that it is difficult for masks or filters to filter small particles of dust, such as small particles of pm2.5 and below, which will still enter the lungs of the human body and accumulate, seriously affecting health. Fine particles can be filtered by using more precise filters, but this also creates new technical problems. More precise filters are easily blocked by dust or fine particles, and the cost of frequent replacement of filters is higher, and replacement filters Cannot be recycled, causing new environmental pollution. And after using the filter, especially the more precise filter, the breathing resistance is greater, that is, it is difficult to breathe, which is different from the normal breathing pattern, and it will also affect your health.

There is also a method of dust removal by spraying, but because of the need to continuously consume electricity to drive the pump to supply water to the nozzle, the relay time is short, and the pump will continue to generate noise, so it is not suitable for a mobile and portable structure.

Chinese patent document 202909334U discloses a portable air purifier, which uses dry and wet two-stage purification to purify the air. The way of washing and filtering is adopted, in which the splash-proof ball leaves the water surface.

Chinese patent document CN 103272465 A discloses a portable smog purification device, which uses two-stage water washing to purify the air, and uses a small air pump as the power source. The existing problem is that the structure is relatively complex and the battery life is short.

Contents of the invention

The technical problem to be solved by the utility model is to provide a portable dedusting device, which does not require additional power, has good dedusting effect, and has low breathing resistance and low cost for long-term use.

In order to solve the above technical problems, the technical solution adopted by the utility model is: a portable dust removal device, including a housing, the air inlet pipe communicates with the lower part of the housing, and the upper part of the housing is provided with an exhaust port for connecting the mask. A liquid is arranged in the housing, and a gas phase labyrinth is arranged in the inner cavity of the housing, and the gas phase labyrinth is provided with an adsorption layer at least on the windward side.

The liquid submerges the air inlet of the air intake pipe.

A one-way valve to prevent liquid backflow is provided at the air inlet of the air intake pipe or the air intake pipe.

The adsorption layers are connected to each other, and the lower ends of the adsorption layers are submerged in the liquid.

The gas phase maze is a multi-level maze structure to obtain at least 8 turns;

A first-level labyrinth is formed between the staggered vertical partitions and the inner cavity of the housing, and a second-level maze is formed between the staggered horizontal partitions and the vertical partitions and the inner cavity of the housing;

Alternatively, a first-level labyrinth is formed between the staggered transverse partitions and the housing cavity, and a second-level labyrinth is formed between the staggered vertical partitions, the transverse partitions and the housing cavity.

A liquid-phase labyrinth is also provided at the lower part of the inner cavity of the housing, and most or all of the liquid-phase labyrinth is located below the liquid level of the liquid, and the liquid-phase labyrinth is composed of multiple layers of horizontally staggered partitions and the inner cavity of the housing. , at least the lower surface of the separator is provided with a rigid layer.

The inlet pipe is connected to the inlet of the gas phase labyrinth, the outlet of the gas phase labyrinth is connected to the inlet of the liquid phase labyrinth, and the outlet of the liquid phase labyrinth is connected to the exhaust port;

Or the inlet pipe is connected with the inlet of the liquid phase labyrinth, the outlet of the liquid phase labyrinth is connected with the inlet of the gas phase labyrinth, and the outlet of the gas phase labyrinth is connected with the exhaust port.

The exhaust port is connected with the mask through a connecting pipe, and an exhalation one-way valve is arranged on the mask.

The exhaust port is connected with the mask through a connecting pipe, and a filtering device and/or an adsorption device are also arranged in the mask.

A slag discharge port is provided at the bottom of the shell.

The utility model provides a portable dedusting device, through the cooperation of the gas-phase labyrinth and the adsorption layer, wherein the gas-phase labyrinth prolongs the air path and makes the air turn repeatedly, and the centrifugal force generated by the turning makes the dust in the air and the adsorption layer Contact and be adsorbed by the adsorption layer, thereby reducing dust and fine particles in the air. The principles of filtration and spraying in the prior art are different. Compared with filtration, the breathing resistance of the utility model is very small, which hardly affects normal breathing, and can be used continuously by replacing the liquid in the shell and discharging the sediment. , low cost and no pollution to the environment. Compared with spraying, the utility model does not need a power source and a pump, reduces the use cost, and has no noise. The utility model also has the advantages of simple structure, convenient manufacture and low production cost.

In the further optimized solution, in cooperation with the liquid phase labyrinth structure of the present invention, the set partitions and rigid thorns can ensure sufficient contact between the liquid and the air, thereby further reducing dust and fine particles in the air. With the combination of various optimization schemes of the utility model, the dust removal effect of the utility model can reach more than 99%.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further described:

Fig. 1 is a schematic diagram of the overall structure of Embodiment 1 of the present utility model.

Fig. 2 is a schematic diagram of the overall structure of Embodiment 2 of the present utility model.

FIG. 3 is a schematic cross-sectional view along line A-A of FIG. 1 .

Fig. 4 is a schematic diagram of the overall structure of Embodiment 3 of the present utility model.

In the figure: intake pipe 1, first one-way valve 2, second one-way valve 3, air inlet 4, gas phase labyrinth 5, vertical partition 51, horizontal partition 52, adsorption layer 53, liquid phase labyrinth 6, Separator 61, just-punched layer 62, housing 7, connecting pipe 8, mask 9, exhalation one-way valve 10, slag discharge port 11, liquid 12, and exhaust port 13.

Detailed ways

Example 1:

As shown in Fig. 1, a kind of portable dedusting device comprises housing 7, and air inlet pipe 1 communicates with the lower part of housing 7, and in this example, the air inlet 4 of air inlet pipe 1 is preferably arranged at the bottom of housing 7 , the upper part of the housing 7 communicates with the mask 9 through the connecting pipe 8, a liquid 12 is provided in the housing 7, a gas phase labyrinth 5 is provided in the inner cavity of the housing 7, and the gas phase labyrinth 5 is provided with an adsorption at least on the windward side. layer 53, of course it is also feasible to arrange more adsorption layers 53. Different from the prior art, the utility model reduces the dust in the air by means of adsorption, keeps the adsorption layer 53 moist through the liquid 12, and absorbs the dust and fine particles in the air. Due to this structure, the utility model has almost no wind resistance, thereby not affecting normal breathing. Referring to Fig. 1, the air enters the gas-phase labyrinth 5 in the inner chamber of the casing 7 from the air inlet 4 at the lower end of the air intake pipe 1, and during the turning process, the dust in the air contacts the adsorption layer 53 due to the centrifugal force, thereby being adsorbed on the Adsorption layer 53, to reduce the dust carried in the air that finally enters the mask 9, to provide clean air. This structure is suitable for working conditions with less dust content. The preferred absorbent layer 53 is a fabric with a large specific surface area that is beneficial for retaining moisture, such as plush fabric, fleece or non-woven fabric, and other fluffy sheets are also feasible. During use, shaking the housing 7 occasionally can make the liquid 12 wet the adsorption layer 53 to improve the adsorption effect of the adsorption layer 53 and also clean up the dust adsorbed on the adsorption layer 53 .

Preferably, as shown in Figure 1, the gas phase labyrinth 5 is a multi-stage labyrinth structure, wherein the first-level labyrinth is formed between the vertical partitions 51 arranged staggered and the inner cavity of the housing 7, and the horizontal partitions 52 arranged staggered and A second-level labyrinth is formed between the vertical partition 51 and the inner cavity of the housing 7 .

Or as shown in Figure 4, the gas-phase labyrinth 5 forms a first-level labyrinth between the transverse partitions 52 arranged staggered and the inner cavity of the housing 7, and the vertical partitions 51 and the transverse partitions 52 and the inner cavity of the housing 7 arranged in a staggered manner A second-level maze is formed between them.

By analogy, more levels of labyrinth structures can also be adopted according to the volume. With this structure, while increasing the air path, the number of turns of the air is also increased, such as at least 8 turns. When the wind speed is high, at the position of the turn, the centrifugal force generated throws the particulate matter in the air to the adsorption layer 53, Each turn completes a centrifugal separation process, so more turns can better improve the effect of adsorption and dust removal. From the foregoing, the utility model is mainly based on adsorption and dust removal, and more turns can effectively increase the contact probability between the dust carried in the air and the adsorption layer 53, thereby further improving the effect of dust removal. As long as the minimum cross-sectional area of the air passage is larger than the minimum cross-sectional area of the nasal passage in the human body, it will hardly affect the normal breathing of the user.

It should be noted that more turns will also increase the air resistance. Therefore, it is better to set the gas phase maze 5 as an active frame structure, which can be replaced according to the degree of pollution. After testing, when the air pollution index reaches more than 400 When the air pollution index reaches 300-400, the best number of turns is 20-25; when the air pollution index reaches 200-300, the best number of turns is 15~20; when the air pollution index reaches 100~200, the number of turns should be 10~15.

The preferred solution is as shown in FIG. 1 , the liquid 12 submerges the air inlet 4 of the air inlet pipe 1 . With this structure, before the air enters the gas phase labyrinth 5, it also undergoes a water washing procedure, which reduces the processing intensity of the gas phase labyrinth 5 and improves the dust removal effect. With this structure, the gas phase labyrinth 5 is also convenient for absorbing water vapor in the air, and avoids increasing the humidity in the discharged air.

The preferred solution is as shown in Figures 1 and 2, the air inlet 4 of the air inlet pipe 1 or the air inlet pipe 1 is provided with a one-way valve to prevent liquid backflow. This structure can prevent the liquid 12 from leaking from the intake pipe 1 during movement, that is, air can only enter the housing 7 from the intake pipe 1 , and neither air nor liquid can be discharged from the intake pipe 1 . In a preferred solution, the exhaust port 13 is connected to the face mask 9 through the connecting pipe 8, and an exhalation one-way valve 10 is arranged on the face mask 9 at the same time. With this structure, the exhaled waste gas is facilitated to be discharged. When inhaling, the exhalation one-way valve 10 is in a closed state.

Because the utility model has been filtered for the first time, the dust or particles carried in the air have been greatly reduced. Therefore, for particularly demanding occasions, it can still be used with a filter device, such as the aforementioned precision filter, to provide cleaner air. Due to the adsorption treatment, the normal service life of the precision filter can be greatly extended.

In a preferred solution, an adsorption device is also provided in the mask 9 . The adsorption device here is mainly used to adsorb or degrade harmful gases, such as formaldehyde, sulfur dioxide, etc. The commonly used adsorption devices use charcoal, photocatalyst materials, etc. After being combined with the structure of the utility model, the service life of the adsorption device can also be extended.

As shown in Figures 1 and 2, the bottom of the housing 7 is also provided with a slag outlet 11 . With this structure, it is easy to discharge the used liquid in the casing 7 .

A preferred structure is shown in FIG. 3 , the adsorption layers 53 are interconnected, and the lower ends of the adsorption layers 53 are submerged in the liquid 12 . With this structure, the adsorption layer 53 is always kept moist through the capillary principle to obtain a better adsorption effect, and the housing 7 does not need to be shaken frequently.

The above optimization schemes can be used in combination.

Example 2:

The inventor of the utility model found that the combination of water washing and adsorption can further improve the effect of dust removal, but it is still lower than expected, especially the effect of water washing is lower than expected. For example, Chinese patent document CN 103272465 A discloses a portable mist Even after two-stage water washing, the dust removal effect of the haze purification device is only 40% to 70%, and it is related to the airflow velocity. When the airflow velocity increases, the dust removal effect tends to decrease. After careful analysis, it was found that during the washing process, due to the existence of air bubbles, under the influence of the surface tension of water, the contact between dust and water was not sufficient, thus affecting the effect of washing and dust removal.

In order to overcome the above-mentioned technical problems, in the optimized scheme shown in Figure 2 on the basis of Embodiment 1, a liquid phase labyrinth 6 is also provided at the bottom of the housing 7 inner cavity, and the liquid phase labyrinth 6 in this example is large. Some or all of them are located below the liquid surface of the liquid 12, because the air bubbles formed by the air will raise the water level after entering the housing, so it is feasible that most of the liquid phase labyrinth 6 is located below the liquid surface. A gas-phase labyrinth 5 is provided above the liquid-phase labyrinth 6 . In this example, the air intake pipe 1 is preferably arranged on the side wall of the housing 7 near the bottom, or near the bottom of the side wall. to extend the air path.

The liquid-phase labyrinth 6 is formed between multi-layer staggered partitions 61 and the inner chamber of the housing 7. Preferably, the partitions 61 are arranged horizontally, and at least the lower surface of the partitions 61 is provided with a rigid layer 62. The bottom of the liquid phase labyrinth 6 is higher than the air inlet 4 of the air inlet pipe 1 . The function of installing the liquid phase labyrinth 6 is to make the air entering the casing 7 fully contact with the liquid 12, so as to further improve the effect of dust removal. The set rigid thorn layer 62 adopts a structure similar to the rigid thorns in Velcro, and the rigid thorns in the rigid thorn layer 62 are used to pierce and cut the air bubbles, and roll over the lower surface of the partition 61 where the air bubbles are arranged horizontally along the liquid phase maze 6 In the process of advancing, the just thorn layer 62 continues to puncture and cut the air bubbles, further increasing the contact probability of the dust carried in the air with the liquid 12, thereby improving the effect of the liquid absorbing dust. As shown in Figure 2, the air bubbles will tend to change. Small, thereby increasing the contact area with water. Although it will slightly increase the wind resistance of breathing, the dust removal effect of this optimized structure is very ideal, and the dust removal effect can reach more than 95%, which is very suitable for working conditions with high dust content, especially for small particles of pm2.5 and below Conditions with higher content.

Example 3:

On the basis of Embodiments 1 and 2, the optional scheme is as shown in Figure 4, the inlet pipe 1 is connected with the inlet of the gas phase labyrinth 5, the outlet of the gas phase labyrinth 5 is connected with the inlet of the liquid phase labyrinth 6, and the outlet of the liquid phase labyrinth 6 It is connected to the exhaust port 13; with this structure, the gas phase labyrinth 5 is used to first absorb dust with larger particles, such as dust above pm10, and then the liquid phase labyrinth 6 absorbs dust with smaller particles, so that the adsorption efficiency can be better exerted. In particular, the adsorption capacity of the liquid in the liquid-phase labyrinth 6 can be improved, that is, the liquid can be replaced after absorbing more particles. In particular, by using a liquid rich in negative ions as the adsorption liquid, such as water rich in ^OH- and other negative ions, it can better adsorb positively charged particles in the air, and this adsorption effect is for smaller particles, such as Dust below pm10 is more effective.

Claims (10)

1. a Portable dust device, comprise housing (7), air inlet pipe (1) is communicated with the bottom of housing (7), the top of housing (7) is provided with the exhaust outlet (13) for connecting face shield (9), it is characterized in that: in housing (7), be provided with liquid (12), be provided with gas phase labyrinth (5) at housing (7) inner chamber, described gas phase labyrinth (5) is at least provided with adsorption layer (53) in windward side.

2. a kind of Portable dust device according to claim 1, is characterized in that: the air inlet (4) of described liquid (12) submergence air inlet pipe (1).

3. a kind of Portable dust device according to claim 1, is characterized in that: air inlet (4) or air inlet pipe (1) in air inlet pipe (1) are provided with the check valve that prevents liquid backflow.

4. a kind of Portable dust device according to claim 1, is characterized in that: described adsorption layer (53) is connected to each other together, and the lower end of adsorption layer (53) is immersed in liquid (12).

5. a kind of Portable dust device according to claim 1, is characterized in that: described gas phase labyrinth (5) is for multistage labyrinth structure is to obtain at least 8 above turnings;

Wherein between the vertical baffle of interlaced arrangement (51) and housing (7) inner chamber, form first order labyrinth, and between the lateral partitions of interlaced arrangement (52) and vertical baffle (51) and housing (7) inner chamber, form labyrinth, the second level;

Or between the lateral partitions of interlaced arrangement (52) and housing (7) inner chamber, form first order labyrinth, and form labyrinth, the second level between the vertical baffle of interlaced arrangement (51) and lateral partitions (52) and housing (7) inner chamber.

6. a kind of Portable dust device according to claim 1 or 5, it is characterized in that: the bottom at housing (7) inner chamber is also provided with liquid phase labyrinth (6), described liquid phase labyrinth (6) is most of or be all positioned under the liquid level of liquid (12), liquid phase labyrinth (6), by forming between the dividing plate (61) of multiple-layer horizontal interlaced arrangement and housing (7) inner chamber, is at least provided with firm thorn layer (62) at the lower surface of dividing plate (61).

7. a kind of Portable dust device according to claim 6, it is characterized in that: air inlet pipe (1) is connected with the import of gas phase labyrinth (5), the outlet in gas phase labyrinth (5) is connected with the import of liquid phase labyrinth (6), and the outlet of liquid phase labyrinth (6) is connected with exhaust outlet (13);

Or air inlet pipe (1) is connected with the import of liquid phase labyrinth (6), the outlet of liquid phase labyrinth (6) is connected with the import of gas phase labyrinth (5), and the outlet of gas phase labyrinth (5) is connected with exhaust outlet (13).

8. a kind of Portable dust device according to claim 1, is characterized in that: exhaust outlet (13) is connected with face shield (9) by tube connector (8), is provided with expiratory one-way valve (10) on face shield (9).

9. a kind of Portable dust device according to claim 1, is characterized in that: exhaust outlet (13) is connected with face shield (9) by tube connector (8), in face shield (9), is also provided with filter and/or adsorbent equipment.

10. a kind of Portable dust device according to claim 1, is characterized in that: the bottom of housing (7) is provided with slag-drip opening (11).