A household fresh air system with a variable-pressure haze-removing small-diameter air supply duct

Abstract

The present invention relates to a household fresh air system with a variable-pressure haze-removing small-diameter air supply duct, which includes a condensation chamber and a filtration chamber. The condensation chamber is box-shaped, and an air inlet and an air outlet are provided on its side wall, and a condensation pipe is arranged inside it; the air inlet communicates with the outside, and an air compressor is provided thereon; a air supply duct is provided on the air outlet; the condensation pipe is a thin metal pipe, and both its inlet end and outlet end are open; the outlet end extends outside the condensation chamber and communicates with the outside; the filtration chamber is box-shaped, an inlet and an air supply port are provided on its outer wall, and a filter screen is arranged inside it; the inlet is communicated with the air supply duct; the air supply port communicates with the interior of the room. The present invention changes the introduced outdoor air into high-pressure, high-temperature, and saturated humidity air, and then condenses it through the condensation pipe, effectively removing the moisture and small particle pollutants therein, making the air entering the room cleaner. At the same time, by sending air into the room through a small-diameter air supply duct, it is possible to avoid affecting the indoor environment and improve comfort.

Description

Technical Field

[0001] The present invention relates to a fresh air system, in particular to a household fresh air system with haze removal function, specifically a household fresh air system with variable pressure haze removal and small-diameter air supply ducts. Background Art

[0002] An air filtration device is provided in the fresh air system to filter and clean the fresh air introduced into the room. At present, common fresh air filtration devices usually consist of one or more filter meshes. The cleanliness of the filtered air depends on the number of filter mesh layers and the density of the filter mesh (mesh count). If the number of layers is too many or the mesh count of the filter mesh is too dense, the air resistance will be too large, restricting the air supply speed (air supply volume). Therefore, the air filtration layer of the existing household fresh air system is usually only effective for particles larger than 5.0 microns, while for particles smaller than 2.5 microns (PM2.5), since such pollutants are suspended in the air in the form of aerosols, the filtration effect is poor, making it difficult to meet the growing market demand.

[0003] Therefore, it is urgently needed to be improved to better meet the market demand. Summary of the Invention

[0004] The purpose of the present invention is to provide a household fresh air system with variable pressure haze removal and small-diameter air supply ducts in view of the deficiencies of the prior art, which can quickly and efficiently remove small particulate pollutants in the fresh air, and moreover, has a simple structure and convenient control, fully meeting the market demand.

[0005] The technical solution of the present invention is as follows:

[0006] A household fresh air system with variable pressure haze removal and small-diameter air supply ducts includes a condensation chamber and a filtration chamber. The condensation chamber is box-shaped, with an air inlet and an air outlet provided on its side wall, and a condensation pipe is provided inside. The air inlet communicates with the outside, and an air compressor is provided thereon. The air outlet is provided with an air supply duct. The condensation pipe is a thin metal pipe, and both its inlet end and outlet end are open. The outlet end extends outside the condensation chamber and communicates with the outside.

[0007] The filtration chamber is box-shaped, with an inlet and an air supply port provided on its outer wall, and a filter mesh is provided inside. The inlet is connected to the air supply duct. The air supply port communicates with the inside of the room. The diameter of the air supply duct is 25 - 35 mm.

[0008] Further, a one-way valve is provided on the air inlet to prevent air backflow at the air inlet.

[0009] Further, the condensation pipe is a serpentine pipe, and an electronically controlled flow dividing valve is provided at its inlet end.

[0010] Further, a mesh cover is provided outside the air inlet.

[0011] Furthermore, a sewage discharge port is provided at the bottom of the condensation chamber.

[0012] Furthermore, a pressure protection valve is provided on the condensation chamber.

[0013] Furthermore, a regulating valve is provided on the air supply pipe.

[0014] Furthermore, a damping layer is provided in the filtration chamber to eliminate air flow noise.

[0015] Advantages of the present invention:

[0016] The present invention is reasonably designed, has a simple structure and is convenient to use. By the principle of air thermodynamics, the introduced outdoor air is changed into high-pressure, high-temperature and saturated humidity air, and then condensed through the condensation pipe, effectively removing the moisture and small particle pollutants therein, making the air entering the room cleaner. At the same time, by sending air into the room through a small-diameter air supply pipe, it is possible to avoid affecting the indoor environment and improve the comfort of use. Description of the Drawings

[0017] Figure 1 It is a schematic structural diagram of the present invention.

[0018] Wherein, 1 - condensation chamber; 2 - electronic control diverter valve; 3 - condensation pipe; 4 - protection valve; 5 - air supply pipe; 6 - regulating valve; 7 - filtration chamber; 8 - filter screen; 9 - damping layer; 10 - air supply port; 11 - sewage discharge port; 12 - air compressor; 13 - mesh cover. Specific Embodiments

[0019] The present invention will be further described below in conjunction with the drawings and embodiments.

[0020] As Figure 1 shown.

[0021] A household fresh air system with a variable pressure haze removal small-diameter air supply pipe includes a condensation chamber 1 and a filtration chamber 7.

[0022] The condensation chamber 1 is box-shaped, or can be set to other shapes according to the actual application environment. An air inlet and an air outlet are provided on the side wall of the condensation chamber 1. The air inlet and the air outlet can be arranged opposite to each other, adjacent to each other, or in other forms. The air inlet is located outdoors, and an air compressor 13 is provided thereon to compress the outdoor air entering the condensation chamber 1. A air supply pipe 5 is provided on the air outlet to discharge the air in the condensation chamber 1. Preferably, a check valve is provided on the air inlet to prevent backflow at the air inlet. A mesh cover 12 is provided outside the air inlet to preliminarily filter the outdoor incoming air. The mesh cover 12 can be made of wire mesh or plastic mesh. The diameter of the air supply pipe 5 is 25-35 mm, which can avoid causing adverse effects on the indoor environment. The air compressor 13 can be a silent air compressor E8L-550.

[0023] A condensation pipe 3 is provided in the condensation chamber 1. The condensation pipe 3 is in a serpentine tubular shape, or can be other shapes to have a longer length. The condensation pipe 3 can be made of a stainless steel pipe or a copper pipe with a diameter of 2-10 mm. The inlet end and the outlet end of the condensation pipe 3 are both open, and the inlet end faces the air inlet, and the outlet end extends outside the condensation chamber 1 so that part of the compressed air in the condensation chamber 1 flows through the condensation pipe 3 and then is discharged outdoors. According to the air thermodynamics principle, after the compressed air enters the condensation pipe, as the pressure drops, its temperature also drops rapidly, and condensation can form on the surface of the condensation pipe, taking away part of the moisture and adsorbed small particle dust in the air. Preferably, an electric control diverter valve 2 is provided at the inlet end of the condensation pipe 3 to open and close the inlet end of the condensation pipe 3 as needed to meet different usage requirements.

[0024] The filtration chamber 7 is box-shaped, or can be other shapes. An inlet is provided at its left end, an air supply port 10 is provided at its bottom, and a filter screen 8 is provided inside. The inlet is communicated with the air supply pipe 5, and the air supply port 10 leads to the indoor, and can filter the air in the condensation chamber 1 flowing in through the air supply pipe 5 and then discharge it into the indoor through the air supply port 10. Preferably, the filter screen 8 is two layers of medium-efficiency filter screens stacked on top of each other, and a damping layer 9 is provided therein to eliminate the air flow noise. The damping layer 9 can be formed by stuffing sound-absorbing materials such as foamed polypropylene.

[0025] A sewage discharge port 11 is provided at the bottom of the condensation chamber 1 to facilitate the discharge of the condensed water mixed with dirt therein.

[0026] A pressure protection valve 4 is provided on the condensation chamber 1, which can automatically open for pressure relief when the pressure in the condensation chamber 1 is too high to ensure safe use.

[0027] The air supply duct 5 is provided with a regulating valve 6, which can adjust the air supply volume according to the usage requirements. Preferably, the regulating valve 6 can be an electric air regulating valve, which is convenient to control.

[0028] The working process of the present invention is as follows:

[0029] ① Outdoor air enters the condensation chamber through an air compressor, turning the air in the condensation chamber into high-pressure, high-temperature, and saturated humidity air. According to the principles of air thermodynamics, the aerosol state of PM2.5 can be changed into condensed water and discharged, taking away part of the air moisture and adsorbed dust.

[0030] ② When there is haze weather, the electric control diverter valve is opened, allowing part of the high-temperature, high-humidity, and high-pressure air to enter the condensation pipe for pressure relief. Similarly, according to the principles of air thermodynamics, since the air temperature drops as the pressure decreases, a large temperature difference of more than 4°C appears between the surface of the condensation pipe and the air in the condensation chamber, causing the surface temperature of the condensation pipe to be lower than the dew point of the air in the condensation chamber, resulting in a large amount of condensation, and further taking away the moisture and adsorbed dust in the air in the condensation chamber.

[0031] In the above processes ① and ②, about 20% - 50% of the dust particles in the air can be removed according to different climates.

[0032] ③ Since the air in the air chamber is in a compressed and supersaturated state, the remaining PM2.5 particles can flocculate with larger dust particles and become large-diameter dust particles (aggregates).

[0033] ④ The high-pressure air in the condensation chamber passes through the air supply duct and enters the filtration chamber after being regulated by the regulating valve. The flocculent dust (aggregates) and large-particle dust therein can be filtered out by the filter screen, enabling the removal rate of dust in the air to reach over 90%, ensuring that clean air enters the room.

[0034] ⑤ On non-haze days, the electric control diverter valve is closed, and the condensation chamber only acts as a pressurizing chamber, removing part of the air moisture and adsorbed dust. Then, it enters the filtration chamber through the air supply duct, and the filtered clean air is sent into the room.

[0035] The present invention adopts the processes of air compression for temperature rise and pressure reduction for temperature drop, destroying the temperature / humidity environment on which PM2.5 depends, causing its water vapor to condense and dust to flocculate, and achieving the purpose of removing PM2.5 through technical measures such as discharging condensed water and filtering flocculants, which can effectively meet the market demand and is worthy of promotion.

[0036] Parts not involved in the present invention are the same as or can be implemented using existing technologies.

Claims

1. A household fresh air system with a variable-pressure haze-removing small-diameter air supply duct, comprising a condensation chamber and a filtration chamber, characterized in that, The condensation chamber is box-shaped, with an air inlet and an air outlet provided on its side wall, and a condensation pipe is provided inside; the air inlet communicates with the outside, and an air compressor is provided thereon; a air supply pipe is provided on the air outlet; the condensation pipe is a thin metal pipe, and both its inlet end and outlet end are open; the inlet end faces the air inlet and is provided with an electric control diverter valve; the outlet end extends outside the condensation chamber and communicates with the outside; The filtration chamber is box-shaped, with an inlet and an air supply outlet provided on its outer wall, and a filter screen is provided inside; the inlet communicates with the air supply pipe; the air supply outlet communicates with the interior; the diameter of the air supply pipe is 25-35 mm.

2. The variable-pressure haze-removing small-diameter air supply duct household fresh air system according to claim 1, characterized in that, A one-way valve is provided on the air inlet to prevent air backflow at the air inlet.

3. The variable-pressure haze-removing small-diameter air supply duct household fresh air system according to claim 1, characterized in that, The condensation pipe is a serpentine pipe.

4. The variable-pressure haze-removing small-diameter air supply duct household fresh air system according to claim 1, characterized in that, A mesh cover is provided outside the air inlet.

5. The variable-pressure haze-removing small-diameter air supply duct household fresh air system according to claim 1, characterized in that A sewage discharge port is provided at the bottom of the condensation chamber.

6. The variable-pressure haze-removing small-diameter air supply duct household fresh air system according to claim 1, characterized in that, A pressure protection valve is provided on the condensation chamber.

7. The household fresh air system with a variable-pressure haze removal small-diameter air supply duct according to claim 1, characterized in that, A regulating valve is provided on the air supply pipe.

8. The variable-pressure haze-removing small-diameter air supply duct household fresh air system according to claim 1, characterized in that, A damping layer is provided inside the filtration chamber to eliminate air flow noise.

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