CN102620377B - Civilian and working environment indoor air cleaning system - Google Patents

Abstract

The invention provides a kind of civilian and working environment indoor air cleaning system, it is characterized in that comprising exhaust system and air-makeup system, described exhaust system comprises indoor air draught filter and exhaust fan, acoustical cotton is provided with inside described exhaust fan external shell, during startup work of the present invention, enter indoor air by outdoor and all pass through filtration, get rid of indoor air-polluting while, what input is 100% natural fresh air, acoustical cotton is equipped with in exhaust fan external shell of the present invention, effectively reduce noise, the present invention stays at home under door and window closes situation, can timing ventilation, realize the purification of room air.

Description

Indoor air purification system for civil and office environments

technical field

The invention relates to a purification system, in particular to an indoor air purification system.

Background technique

The times are progressing, and with the continuous improvement of people's lives, paying attention to the quality of life has become the survival trait of today's human beings. The country attaches great importance to the pollution problem and has taken many control measures, such as drinking water pollution control. The country has built many sewage treatment plants to effectively improve the pollution problem from the source of drinking water. Compared with drinking water pollution control So far, the control of the air environment has only adopted measures such as emission reduction fines for air polluting companies, but zero emissions are impossible to achieve. Therefore, we only live in relatively good or close to good air. In particular, air conditioners are increasingly popular in modern life, causing the human body, rooms and air conditioners to form a closed circulation system indoors, which can easily cause bacteria, viruses, molds and other microorganisms to multiply in large numbers. Now medical and industrial air purification systems have appeared, but there are no related equipment for the equally polluted civil and office environments.

Contents of the invention

The present invention provides an indoor air purification system for civil and office environments, which is characterized in that it includes an air exhaust subsystem and an air supply subsystem. The air exhaust subsystem and the air supply subsystem realize indoor and outdoor air exchange through pressure differences. The air exhaust subsystem includes an indoor suction filter device and an external exhaust fan. Sound-absorbing cotton is arranged inside the outer casing of the external exhaust fan. The external exhaust fan is connected to the indoor suction filter device through a suction pipe. The outer exhaust fan is connected with the exhaust duct, and the end of the exhaust duct is divided into an inner exhaust duct and an outer exhaust duct. Control knobs are arranged on the inner exhaust duct and the outer exhaust duct, and the suction duct is connected with the indoor air suction The filter device is connected, and the indoor suction filter device includes an external casing, a built-in filter element, and a central air hole, and the built-in filter element is located in the external casing, and the built-in filter element includes a filter screen, a metal mesh, and a mesh air inlet. The air supply subsystem includes a forced air supply device, a passive air supply device and an air supply motor. The air supply motor is connected to the forced air supply device through a pipeline. In this configuration, the power of the external exhaust fan is smaller than that of the supplementary air motor.

The indoor air suction filter device is located on the upper side of the wall, and the forced air supply device and the passive air supply device are located on the lower side of the wall.

The inner upper side of the metal mesh is a threaded structure, and the upper side of the metal mesh is fixed with a central air hole.

Adsorptive material is filled between the outer casing and the filter net.

The mesh air inlet is a mesh structure, and fastening bolts are arranged on the upper side of the mesh air inlet.

The density of the sheet filter net increases step by step from outside to inside.

The sheet filter has 2-5 layers.

The beneficial effects of the present invention are: when the present invention is started to work, the air entering the room from the outside is all filtered, and while the polluted air in the room is eliminated, 100% natural fresh air is input. There is a cavity structure between the outer casing and the built-in filter element of the indoor air suction filter device of the present invention, and the inside of the cavity is filled with adsorption materials for filtering out harmful gases and new environmental protection filter materials, the air filtration effect is good, and the central air hole is mesh-shaped The structure is the air duct of the filtered gas, which keeps the impurities out and ensures the purity of the air entering the room and exhausting to the outside. The exhaust duct of the present invention is divided into an inner exhaust duct and an outer exhaust duct so that the system is a double cycle System, the first circulation system is direct air exhaust, indoor and outdoor air circulation and purification, according to the principle of air flow, an "indoor air dialysis system" is formed to form an indoor fresh air flow field, and while indoor polluted air is eliminated, fresh and clean outdoor air is input Supplement to the room; the second circulation system is the indoor circulation, after the indoor air is filtered and purified, it is restored and supplemented to the room, which not only ensures the air quality, but also reduces the loss of room temperature. Sound-absorbing cotton is provided in the external casing of the external exhaust fan of the present invention, which effectively reduces noise. When the doors and windows of the house are closed, the present invention can regularly ventilate and realize the purification of indoor air.

Description of drawings

Figure 1 is a schematic diagram of the structure of the external exhaust fan;

Fig. 2 is a structural schematic diagram of an indoor air suction device;

Fig. 3 is the flow chart that the present invention operates;

Fig. 4 is the present invention

Detailed ways

According to Fig. 1, Fig. 2, Fig. 3, shown in Fig. 4, the present invention is further described:

Example 1

According to Fig. 1, Fig. 2, Fig. 3, Fig. 4, first install the indoor suction filter device 1, install the filter screen 13 and the metal net 14 of the built-in filter element in the outer casing 11, and then install the mesh into the The tuyere 16 is installed on the upper side of the indoor air suction filter device 1, and is connected by threads and bolts 15. After installation, the indoor air suction filter device 1 is installed on the upper side of the indoor wall, and then five layers of sheet filters with different mesh densities are placed Install it in the forced air supply device 4 and the passive air supply device 3 according to the mesh density increasing step by step from the outside to the inside. The exhaust pipe 9 is placed indoors, and the indoor air suction filter device 1 is installed on the upper side of the wall, and then connected with the external exhaust fan 2 through the air suction pipe 6, and then the supplementary air motor 5 is installed in another room according to Fig. 3 . Forced air supply device 4 and passive air supply device 3, when the air supply motor 5 is installed, keep a certain space distance with the indoor suction filter device 1 to ensure the air purification effect, and then connect the air supply motor 5 and the forced air supply through the connecting pipeline. Wind device 4 is connected.

Example 2

When in use, open the external exhaust fan 2 and the air supply motor 5 at the same time, close the control knob 10 of the inner exhaust pipe 9, start the external exhaust system, the air supply motor 5 drives the forced air supply device 4, and the forced air supply device 4 sucks air into the room. The external exhaust fan 2 drives the indoor suction filter device L and the external exhaust pipe 8. The forced air supply volume is greater than the external exhaust air volume, and a positive pressure environment is formed in the room. At this time, only the forced air supply device 4 enters the air, and the passive air supply device 3 will Exhaust air slightly outward, and automatically clean up impurities in the passive air supply device 3 .

Example 3

When in use, turn off the supplementary air motor 5, only open the outer exhaust fan 2, close the control knob 10 of the inner exhaust pipe 9, start the outer exhaust system, the outer exhaust fan 2 drives the indoor suction filter device 1 and the outer exhaust pipe 2, and passively replenishes the air. The device 3 is running. At this time, only the passive air supply device 3 enters the air, and the air volume of the supplementary air is smaller than the external exhaust air volume, forming a negative pressure environment indoors. According to the principle of aerodynamics, an "indoor air dialysis system" is formed to form an indoor fresh air flow field. While eliminating indoor polluted air, input fresh and clean outdoor air to replenish the room.

Example 4

When in use, turn off the supplementary air motor 5, only open the outer exhaust fan 2, and simultaneously close the control knob 10 of the outer exhaust pipeline 8, start the inner exhaust system, and the outer exhaust fan 2 drives the indoor suction filter device 1 and the inner exhaust pipeline 9, at this time Neither the forced air supply device 4 nor the passive air supply device 3 takes in the air, and only purifies and filters the indoor air, and then restores and replenishes it indoors to reduce indoor heat loss.

Claims (7)

1. A civil and office environment indoor air purification system is characterized in that it comprises an air exhaust subsystem and an air supplement subsystem, and the air exhaust subsystem and the air supplement subsystem realize indoor and outdoor air exchange by pressure difference, so The exhaust system includes an indoor suction filter device (1) and an external exhaust fan (2). The outer casing of the external exhaust fan (2) is provided with sound-absorbing cotton. (6) is connected with the exhaust duct (7), and the outer end of the exhaust duct (7) is divided into an inner row duct (9) and an outer row duct (8), and the inner row duct (9) and the outer row duct (8) are equipped with control knobs (10), the suction duct (6) is connected with the indoor suction filter device (1), and the indoor suction filter device (1) includes an external housing (11), Built-in filter element and central air hole (12), the built-in filter element is located in the external housing (11), and the built-in filter element includes a filter screen (13), a metal mesh (14), and a mesh air inlet (16). The air supplement system includes a forced air supplement device (4), a passive air supplement device (3) and an air supplement motor (5), the supplement air motor (5) is connected with the forced air supplement device (4) through a pipeline, and the forced Both the air supply device (4) and the passive air supply device (3) are mainly composed of sheet filters, and the power of the external exhaust fan (2) is smaller than that of the air supply motor (5). 2. According to the civil and office environment indoor air purification system according to claim 1, it is characterized in that the indoor suction filter device (1) is located on the upper side of the wall, the forced air supply device (4) and the passive air supply device (3 ) on the underside of the wall. 3. According to the indoor air purification system for civil and office environments according to claim 1, it is characterized in that the upper side of the metal mesh (14) is a threaded structure, and the upper side of the metal mesh (14) is fixed with a central air hole ( 12). 4. The indoor air purification system for civil and office environments according to claim 1, characterized in that an absorbent material is filled between the external housing (11) and the filter screen (13). 5. The indoor air purification system for civil and office environments according to claim 1, characterized in that bolts (15) are arranged on the upper side of the mesh air inlet (16). 6. The indoor air purification system for civil and office environments according to claim 1, characterized in that the density of the sheet filter increases step by step from outside to inside. 7. The indoor air purification system for civil and office environments according to claim 1, characterized in that the sheet filter has 2-5 layers.