CN103256675A - Simple air purifying and drying device - Google Patents

Abstract

The invention relates to a novel air purifying and drying device. The air purifying and drying device comprises an air filtering module, an ultraviolet sterilization module, a freeze drying and dehumidifying module and a negative oxygen ion generating module. The four modules comprise an air filtering sleeve (1), an ultraviolet lamp tube (2), an air pumping fan (3), a freeze dryer heat exchanger (4), a negative oxygen ionizer (5), a chilled water tank (6), a chilled water circulation water pump (7), an installation box (8) on the outer layer of the device and a corresponding control system. The air purifying and drying device integrates a plurality of functions such as filtering, sterilizing, drying and generating negative active ions. The air purifying and drying device has the advantages that the air purifying and drying efficiency is high, machining, installing and debugging are convenient, the air purifying and drying device is convenient to carry, easy to arrange and chemical agent-free, and the air purifying and drying can be widely used in various climatic environments.

Description

A simple air purification and drying device

technical field

The invention relates to a new type of simple air purification and drying device, in particular to an air purification and drying device which is used to improve the efficiency of air purification and drying, is convenient for processing, installation and debugging, and can be widely used in various climate environments.

Background technique

Indoor air quality usually refers to indoor air quality, including various parameters such as temperature and humidity, wind speed, and indoor pollutants. The initial definition of indoor air quality refers to the pollutant concentration indicators that affect air quality. However, with the deepening of scientific research in recent years, people have found that single pollutant concentration indicators cannot truly and comprehensively reflect the quality of indoor air quality. Sometimes pollutants In indoor conditions where the concentration is not high, the human body still feels uncomfortable. Therefore, the quality of indoor air is closely related to the subjective feeling of the individual indoors and their own conditions.

Indoor environmental pollution seriously affects people's health, reduces people's work, study and quality of life, and causes serious economic losses. In addition, in southern cities such as Changsha, the humidity is relatively high in spring and autumn, while the temperature is relatively mild. If air conditioners are used to remove moisture in the indoor air, it will cause a large waste of energy. Therefore, it is particularly important to design an energy-saving and efficient device for improving indoor air quality.

Air purifiers are developed on the basis of air filters, which are tools used by people to protect the respiratory system. Air purifiers have generally experienced four eras: 1. Mechanical methods to purify the air; 2. Mixed purification technology with mechanical and physical methods; 3. Biological purification technology; The method to achieve the best purification effect.

Air purification methods mainly include: (1) high-efficiency air filter (filtering treatment of tiny particles above 0.25 μm, dust bacteria, viruses, etc.); (2) activated carbon technology (effectively neutralizing formaldehyde, benzene, ammonia and other harmful gases ); (3) photocatalyst technology (inhibit virus activity, sterilize, remove peculiar smell); (4) ultraviolet disinfection (effectively kill bacteria, viruses and other microorganisms); (5) plasma technology (effectively neutralize formaldehyde, benzene, ammonia and other harmful gas).

The main technical obstacles in the process of large-scale application of traditional air purification devices are: 1. The function is relatively single; 2. The efficiency is too low and the energy consumption is too large.

The device of the invention has multiple functions such as filtering, sterilizing, drying, and generating negative oxygen ions, and has the advantages of low energy consumption, portability, easy installation, and no use of chemical agents.

Contents of the invention

The technical problem to be solved by the present invention is: ordinary air purifiers have low purification and heat exchange efficiency, and their functions are too simple, while using air conditioners to regulate indoor air quality has high efficiency but consumes too much energy. Thereby it is particularly important to design a device that saves energy and reduces consumption, and at the same time can well regulate the indoor air quality.

Theoretical basis of the present invention: HEPA high-efficiency particulate air filter material can effectively remove inhalable particles above 0.25 microns, smoke bacteria, etc., and the fibrous activated carbon filter can quickly absorb smaller particles, benzene, ammonia and other toxic gases . Ultraviolet light is very good at removing bacteria in the air. By lowering the temperature of the air, the moisture in the air is condensed to dry the air. The air is ionized by high-voltage discharge, thereby generating negative oxygen ions that are beneficial to the human body.

The principle of dust removal and sterilization: To sterilize the flowing air, devices such as ultraviolet light, filtration, electrostatic dust removal and sterilization can be used, and the best way is to use ultraviolet germicidal lamps. Ultraviolet rays sterilize in the form of radiated ultraviolet light waves, which can penetrate the air, and can effectively kill bacteria and viruses as long as they are irradiated by ultraviolet rays. In addition, it is also a physical disinfection method without secondary pollution. It is a powerful and reliable sterilization method. The use of ultraviolet disinfection devices can be quantified in design.

The principle of cooling and dehumidification: According to thermodynamic theory, when the air pressure is constant, the lower the temperature, the smaller the saturated moisture content. The dryness of air is expressed by the dew-point (DP) temperature. The so-called dew point temperature is the temperature at which the content of water vapor in the humid air reaches saturation. At this temperature, the relative humidity of the humid air reaches 100%. When the temperature drops slightly, the water vapor contained in the saturated humid air will form "condensation". form into liquid water, thereby reducing its absolute moisture content (g/m ³ ). We can measure the amount of moisture in the humid air from the level of dew condensation temperature, that is, the level of DP, so as to measure the degree of dryness of the humid air.

The principle of oxygen activity: An important technical indicator of the negative oxygen ion generator is the concentration of negative oxygen ions. Generally, the concentration value marked in the generator manual indicates the negative oxygen ion concentration in the air 20 cm in front of the negative oxygen ion generator. The concentration of the negative oxygen ion generator we use is 8x10 ⁶ pcs/cm ³ .

Working principle of the present invention: we adopt 360-degree cylindrical air intake, and the polluted air is preliminarily filtered to remove larger particles, hair, dander, pollen, mold and the like. After passing through the HEPA high-efficiency particulate air filter material, it can effectively remove inhalable particles above 0.25 microns, smoke bacteria, etc. The innermost layer uses a fibrous activated carbon filter to quickly absorb smaller particles, benzene, ammonia and other toxic gases. The center of the cylinder is an ultraviolet germicidal lamp tube, which further sterilizes the clean air. Due to the relatively high air humidity in Hunan Province and other southern regions, the temperature in spring and autumn is suitable. The clean air passes through the water-cooled heat exchanger to remove excess moisture to achieve a comfortable moisture content for people. Finally, it flows through the negative oxygen ion generator, which can further remove fine particles. And produce negative oxygen ions that are beneficial to the human body, and finally provide people with clean, fresh and healthy air.

The technical solution of the present invention: the device of the present invention uses filter materials to filter particles, hair, dander, pollen, etc. in the air while absorbing toxic gases in the air, uses ultraviolet light to sterilize, and uses freeze-drying to dehumidify. The negative oxygen ion generator is used to generate negative oxygen ions to further increase the oxygen activity in the clean air.

The air purification and drying device is composed of four modules and their connecting pipelines and auxiliary devices, including an air filtration module, an ultraviolet sterilizing module, a freeze-drying and dehumidifying module and a negative oxygen ion generating module.

The four modules include air filter sleeve, ultraviolet lamp, exhaust fan, freeze dryer heat exchanger, negative oxygen ion generator, chilled water tank, chilled water circulation pump, outer installation box of the device, and corresponding control The system is an air purification and drying device that integrates multiple functions such as filtration, sterilization, drying, and generation of negative oxygen active ions.

The filter module is composed of an exhaust fan and a filter sleeve. The filter sleeve is a multi-layer filter composed of multi-layer filter materials, and the outer layer is HEPA high-efficiency particulate air filter material, which can effectively remove inhalable particles above 0.25 microns, smoke bacteria, etc. The innermost layer uses a fibrous activated carbon filter to quickly absorb smaller particles, benzene, ammonia and other toxic gases.

The ultraviolet sterilizing module is composed of an ultraviolet lamp tube and a filter sleeve. After the air is filtered by the filter sleeve and enters the cylinder, the ultraviolet rays generated by the ultraviolet lamp are used to sterilize this part of the air. The present invention adopts Oriental Capital T5 type, 4W ultraviolet sterilizing lamp tube, which is placed in the center of the air inlet channel, and performs 360-degree surround irradiation on the filtered air. The irradiated air is sterilized and tested, and the relevant indicators fully meet the requirements of human health. Comply with relevant national standards of GB/T18883-2002.

The freeze-drying and dehumidification module is composed of a chilled water tank, a circulating water pump and a radiator. The chilled water tank is used to store low-temperature water used in the cycle. The water pump is the core power of the cycle, and the radiator is for heat exchange with the air. So as to achieve the core component of cooling and dehumidification. The device of the present invention adopts CoolerMaster Haidiao water-cooled radiator, which is used as an air cooling device after modification. Recycling; the air flows through the heat exchanger, and after heat exchange, the temperature drops to the dew point, so that the excess water vapor is discharged to achieve the purpose of drying. After testing, the dew point temperature of the air after passing through the heat exchanger at an outdoor temperature of 20°C is below 15°C.

The negative oxygen ion generating module is composed of a negative oxygen ion generator. The MORAL-Y50 negative oxygen ion generator is used in the device of the present invention, the power consumption is 1.8W, the negative ion volume is 8x10 ⁶ pcs/cm ³ , the purification speed is 2.758m ³ /min, and the air cleaning rate can reach 40CFM (American standard).

Beneficial effects of the present invention:

1. For southern cities such as Changsha, where the humidity is relatively high and the temperature is relatively mild in spring and autumn, it is designed to replace the air conditioner as an indoor dehumidification device to effectively dry the indoor air;

2. Energy saving, the power of the whole machine is only 9.4W when it is running at the highest performance, and it can be placed indoors for long-term use;

3. Sterilization, the device is equipped with ultraviolet lamps, which can effectively kill harmful bacteria in the air;

4. Equipped with a negative oxygen ion generator, which can generate negative oxygen ions beneficial to human health;

5. It is easy to carry, easy to set up, suitable for various places, no chemical agent to use, no need to disassemble and maintain.

Description of drawings

Fig. 1 CAD structural diagram of the device of the present invention.

Fig. 2 is the air flow diagram of the device of the present invention.

Fig. 3 is a schematic structural diagram of the air filter sleeve of the device of the present invention.

Fig. 4 is a schematic diagram of a three-dimensional model of the device of the present invention.

Figure 5 is a picture of the air filter sleeve of the device of the present invention.

Fig. 6 is a picture of the freeze dryer heat exchanger of the device of the present invention.

Detailed ways

See Figure 1 and Figure 2, mark 1 is the air filter sleeve, 2 is the ultraviolet lamp, 3 is the exhaust fan, 4 is the freeze dryer heat exchanger, 5 is the negative oxygen ion generator, 6 is the chilled water tank, 7 is the chilled water circulation pump, 8 is the outer installation box of the device, 9 is the filter module, 10 is the sterilization module, 11 is the freeze-drying module, 12 is the negative oxygen ion sterilization module, and the corresponding control system. The direction of the arrow in the figure is the direction of air flow. The chilled water in the water tank is pumped to the upper inlet of the heat exchanger by the water pump, and then discharged from the lower outlet into the water tank to continuously circulate.

The four modules include an air filter sleeve (1), an ultraviolet lamp (2), an exhaust fan (3), a freeze dryer heat exchanger (4), a negative oxygen ion generator (5), and a chilled water tank (6), chilled water circulation pump (7), device outer installation box (8), and corresponding control system, can achieve filtration, sterilization, drying, generation of negative oxygen active ions and other functions in one air purification and drying device .

Referring to Fig. 3 and Fig. 5, the size of the air filter sleeve is 5-20 cm in diameter and 10-30 cm in length.

Referring to Fig. 6, the size of the heat exchanger is: 10-40cm in length, 10-40cm in width, and 5-30cm in thickness, generally adopting a square structure.

The present invention can be widely used in places such as Changsha and other southern cities where the indoor air humidity is generally high in spring and autumn, and can be standardized and mass-produced. At the same time, it has the advantages of low energy consumption, portability, easy installation, and no chemical agent use, and is suitable for long-term storage. Indoors, supplement air-conditioning equipment, as a long-term indoor air drying and purification device in spring and autumn.

Claims (4)

1. A simple and easy air cleaning and drying device, characterized in that: the air cleaning and drying device is composed of four modules and connecting pipelines and auxiliary devices, including an air filter module, an ultraviolet sterilizing module, a freeze-drying dehumidification module and a negative Oxygen ion generation module; the four modules include air filter sleeve (1), ultraviolet lamp (2), exhaust fan (3), freeze dryer heat exchanger (4), negative oxygen ion generator (5 ), the chilled water tank (6), the chilled water circulating pump (7), the outer installation box (8) of the device, and the corresponding control system, which can achieve multiple functions such as filtration, sterilization, drying, and generation of negative oxygen active ions. Air purification and drying device. 2. A kind of simple air purification and drying device according to claim 1, characterized in that: the filter module is composed of an air exhaust fan and a filter sleeve; the filter sleeve is a multi-layer filter composed of multi-layer filter materials, The outer layer is HEPA high-efficiency particulate air filter material, which can effectively remove inhalable particles and smoke bacteria above 0.25 microns; the innermost layer uses a fibrous activated carbon filter to quickly absorb smaller particles, benzene, ammonia and other toxic gases . 3. A simple air purification and drying device according to claim 1, characterized in that: the ultraviolet sterilizing module is composed of an ultraviolet lamp tube and a filter sleeve, after the air enters the cylinder after being filtered by the filter sleeve, The ultraviolet light generated by the ultraviolet lamp is used to sterilize and disinfect this part of the air. 4. A simple air purification and drying device according to claim 1, characterized in that: the freeze-drying dehumidification module is composed of a chilled water tank, a circulating water pump and a radiator; the chilled water tank is used to store circulating water The low-temperature water used in the system, the water pump is the core power of the cycle, and the radiator is the core component that exchanges heat with the air to achieve cooling and dehumidification. The radiator device is filled with low-temperature water cooling liquid, and the user can conveniently Ice cubes are added, driven by a water pump, and recycled in the device; the air flows through the heat exchanger, and after heat exchange, the temperature drops to the dew point, so that excess water vapor is discharged to achieve the purpose of drying.

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