CN201166427Y - Air purification, disinfection and deodorization device for centralized air conditioning and ventilation system - Google Patents

Abstract

The utility model is an air purification, disinfection and deodorization device for a centralized air-conditioning and ventilation system, which includes a box body, a dual-zone plasma electric field, an air inlet, an air outlet, a filter and a power control cabinet, and is characterized in that it also includes a positive and negative oxygen ion module One side of the box body is provided with an air inlet, and the other side corresponding to it is provided with an air outlet, the air inlet is provided with a pre-filter, and the air outlet is provided with a post-filter, and the two filters are arranged in sequence Equipped with dual-zone plasma electric field and positive and negative oxygen ion modules, the lead wires of which are respectively connected with the electric control and the ion generator set in the power control cabinet outside the box. The utility model has the characteristics of high efficiency, low energy consumption, low operating cost, easy maintenance and long service life. It can quickly and effectively remove dust, kill bacteria, eliminate peculiar smell, and release a large amount of negative oxygen ions, giving people a natural and fresh environment. The working and living environment can be widely used in various types of places that adopt the full-duct centralized air-conditioning and ventilation system.

Description

Air purification, disinfection and deodorization device for centralized air conditioning and ventilation system

technical field

The utility model relates to an air purification treatment device, in particular discloses an air purification treatment device for a centralized air-conditioning and ventilation system, which is a multifunctional air purification, disinfection and deodorization device.

Background technique

So far, the air purification treatment of the centralized air-conditioning and ventilation system mainly adopts the traditional filter filter technology, that is, the air outlet of the centralized air-conditioning and ventilation system is equipped with coarse-effect filters, medium-efficiency filters and even high-efficiency filters to remove dust and filter bacteria. This technology is widely used in places that require a certain degree of cleanliness, such as hospital operating rooms, pharmaceutical GMP workshops, integrated circuit workshops in electronics factories, and so on. Its disadvantages: First, the filter screen can only filter bacteria, but not sterilize. Under suitable temperature or humidity conditions, the bacteria on the filter screen will multiply and cause secondary pollution; If there are too many, the filter screen is easily blocked, the number of replacements is high, and the operating cost is high; thirdly, the filter screen adopts the blocking method to filter dust and bacteria, and the wind resistance is relatively large. The air volume and static pressure of the fan must be increased to allow the air to pass through. The filter screen consumes a lot of energy; Fourth, it cannot eliminate various peculiar smells and toxic and harmful gases in the air, such as formaldehyde, benzene, ammonia, TVOC, etc. Therefore, this purification method is difficult to promote except for specific occasions.

During the raging SARS virus in 2003, in order to prevent the spread and spread of the virus through the centralized air-conditioning ventilation system, several groups of ultraviolet lamps were installed in the centralized air-conditioning ventilation duct to sterilize and disinfect the air flow. This ultraviolet light technology has a strong broad-spectrum bactericidal ability, and there is no secondary pollution. Its shortcomings are: (1) it does not have the function of removing dust and inhalable particles; (2) the ultraviolet lamp tube is composed of dozens of pieces, which consumes a lot of power; Short, the sterilization and disinfection ability is greatly reduced; (4) can not eliminate various peculiar smells and poisonous and harmful gases.

Contents of the invention

The purpose of this utility model is to overcome the defects of the prior art and provide an air purification, disinfection and deodorization device matched with the centralized air-conditioning and ventilation system, which is composed of a dual-zone plasma electric field and a positive and negative oxygen ion module, and the two play their respective advantages , complement each other.

The utility model can efficiently and quickly remove dust and aerosols in the air, kill bacteria and viruses in the air, absorb and decompose various odors and toxic and harmful gases in the air, without the occurrence of ultraviolet light and ozone, It can also ensure that the device itself and the treated air can meet and exceed the relevant regulations and requirements in the "Regulations on the Sanitation Management of Public Places" promulgated by the State Council and the "Measures for the Sanitation Management of Centralized Air Conditioning and Ventilation Systems in Public Places" promulgated by the Ministry of Health. The dust removal rate is >90%, the sterilization rate of one pass and continuous operation is >95%, the removal rate of toxic and harmful gases and odors is >80%, the purification efficiency drops below 0.1% before and after 24 hours of operation, and the resistance of the device is <50Pa.

The utility model is achieved in the following way: an air purification, disinfection and deodorization device for a centralized air-conditioning and ventilation system, including a box body, a dual-zone plasma electric field, an air inlet, an air outlet, a filter and a power control cabinet, and is characterized in that: it also includes a positive Negative oxygen ion module; one side of the box body is provided with an air inlet, and the other side corresponding to it is provided with an air outlet, the air inlet is provided with a pre-filter, the air outlet is provided with a post-filter, two filter There are dual-zone plasma electric field and positive and negative oxygen ion modules in sequence between the generators; the electric control and ion generator are installed in the power control cabinet outside the box, and the electric control is connected with the phase drawn out by the dual-zone plasma electric field to generate ions. The device is connected with the positive and negative electrodes drawn from the positive and negative oxygen ion modules.

The dual-zone plasma electric field is composed of two parts, the ionization zone and the collection zone, and is connected to the electric control provided in the power control cabinet outside the box through three leads for regulation and control. The positive and negative oxygen ion modules are provided with several groups of continuous arc-shaped metal surfaces arranged in parallel from top to bottom in the engineering plastic frame, and a thin metal wire is arranged in the center of the arc-shaped metal surface. The columns are tightly connected, and the positive and negative poles formed by the thin metal wire and the arc-shaped metal surface are respectively connected to the ion generator set in the power control cabinet through two lead-out lines for adjustment and control. Both the dual-zone plasma electric field and the positive and negative oxygen ion modules are connected to the box body by means of guide rails.

The pre-filter and the post-filter are both coarse-effect filters, which are respectively fixed on the inner sides of the air inlet and the air outlet by means of guide rail drawing. The box body is made of thin metal plates of 1 mm to 2 mm, the outer shell is painted, the inner wall of the box body is reinforced with angle iron ribs, and the front part of the box body is provided with a maintenance door with a lock. The power supply control cabinet is equipped with a main power switch, a short circuit protection device, a working status indicator light and a fault display light.

The beneficial effects of the utility model are: through the joint action of the filter, the dual-zone plasma electric field and the positive and negative oxygen ion modules, the purpose of removing dust, killing bacteria, and eliminating peculiar smells is achieved, and a large amount of negative oxygen ions are released to make the indoor air Meet the national "indoor air quality standard" (national standard GB/T18883-2002), giving people a natural and fresh working and living environment.

The utility model is usually installed in the main air supply duct of the centralized air conditioning ventilation system, and can also be installed in the fresh air duct and the main return air duct respectively, or installed in the main air supply duct, fresh air duct, main return air duct and each branch duct. middle. The utility model can not only protect the central air-conditioning unit from pollution and erosion, reduce energy consumption, but also keep the inner walls of all ventilation ducts clean, reduce the cleaning times and cleaning workload of the air ducts, and at the same time continuously improve the air quality.

The utility model can be linked with the fan of the central air-conditioning unit, and can also independently control the operation, and does not occupy indoor space, and does not need to change the indoor structure. It has high efficiency, low energy consumption, low operating cost, safety and reliability, and easy maintenance. The characteristics of long service life can be widely used in places with large flow and large area of air that need to be treated, such as commercial buildings, hotels, supermarkets, cultural and sports centers, entertainment and leisure places, waiting halls, waiting halls, waiting halls and other traffic distribution Centers, public transportation, hospitals, pharmaceutical factories, industrial and mining enterprises and other types of places that use the full-duct centralized air-conditioning and ventilation system.

Below in conjunction with accompanying drawing, the utility model is further described.

Description of drawings

Fig. 1 is a schematic diagram of the dual-zone plasma electric field structure of the present utility model;

Fig. 2 is the positive and negative oxygen ion module front view of the utility model;

Fig. 3 is the structural representation of positive and negative oxygen ion modules of the present utility model;

Fig. 4 is a schematic sectional view of the structure of the utility model;

Fig. 5 is a structural schematic diagram of the utility model.

In the figure: 1. discharge electrode; 2. grounding electrode; 3. metal beam; 4. high voltage insulation sleeve; 5. metal shell; 6. small hole; 7. large hole; Bolt; 10. High-voltage insulating sleeve; 11. Rectangular metal plate; 12. Rectangular metal plate; 13. Electric control; 14. Dual-zone plasma electric field; 20. Positive and negative oxygen ion modules; 21. Curved metal surface; 22. Metal Filament; 23, fixed column; 24, lead wire; 25, ion generator; 26, frame; 31, air inlet; 32, air outlet, 33, pre-filter; 34, post-filter; 35, box Body; 36, guide rail; 37, guide rail; 40, power control cabinet.

Detailed ways

According to the accompanying drawing 1, the dual-zone plasma electric field 14 of the present invention is composed of two parts, an ionization zone and a collection zone.

The ionization zone consists of the discharge electrode 1 and the ground electrode 2. The discharge electrode 1 is a plurality of metal long filaments with needle-like burrs, which are fixed on the upper and lower two metal beams 3 at the front part of the metal shell 5 after tension. The ground electrode 2 is composed of several rectangular metal plates, which are arranged at intervals and parallel to the discharge electrode 1. There are 10 or more small holes 6 and large holes 7 at equal intervals on the ground electrode 2 . Several metal round casings 8 pass through the small holes 6 and large holes 7 of the grounding electrode 2 to connect with the metal casing 5, some are fixed on the metal casing 5 with metal bolts 9, and some are connected to the metal casing through a high-voltage insulating sleeve 10. 5 fasten. The small hole 6 must be closely matched with the metal circular sleeve 8 and cannot be loosened. The large hole 7 passes through the metal circular casing 8, and keeps a certain annular hole distance therewith.

The collection area is composed of several sets of parallel and opposite rectangular metal plates 11 and 12 . Their processing method is the same as the fixing method and the ground electrode 2. The difference is that the ground electrode 2 is located at the front of the device, parallel to and opposite to the discharge electrode 1, forming an ionization zone. The position of the rectangular metal plate in the collection area is retracted to form the collection area. All rectangular sheet metal rears are flush. Three wires are respectively drawn from the inner holes of the discharge electrode 1, the ground electrode 2 and the high-voltage insulating sleeve 10 to be connected to the electric control 13.

According to the accompanying drawings 2 and 3, it is the positive and negative oxygen ion module 20 of the present invention, which is surrounded by engineering plastics to form a frame 26, and has several groups of continuous arc-shaped metal surfaces 21 arranged in parallel from top to bottom. There is a fine wire 22 in the center of 21, is fastened on the fixed post by the fixed post 23 of two ends after straightening. The thin metal wire 22 and the arc-shaped metal surface 21 respectively form positive and negative poles, and are connected to the ion generator 25 through two lead wires 24 respectively. In the working state, the voltage difference between the two poles is 1500V ~ 2000V.

According to accompanying drawing 4,5, the utility model casing 35 is made by the sheet metal of 1mm～2mm, and shell spray paint. A hole is provided on one side of the box body 35 as the air inlet 31 , and a hole is also provided on the other side corresponding to it as the air outlet 32 . The shape and size of the air inlet and outlet should be changed according to the shape and size of the external air duct or reducing pipe, but they should be tightly connected without air leakage. A pre-filter 33 is installed on the inner side of the air inlet 31, and a post-filter 34 is installed on the inner side of the air outlet 32, and they are respectively fixed on the inner sides of the air inlet 31 and the air outlet 32 by means of guide rails, and are tightly attached. No air leakage. Both the pre-filter 33 and the post-filter 34 are made of a stainless steel frame and a stainless steel wire mesh, and the mesh number of the wire mesh is 40 to 60 mesh. The stainless steel frame and wire mesh can be disassembled at any time according to the accumulation of dust for cleaning and repeated use. The dual-zone plasma electric field 14 is connected to the box body 35 in a pull-out manner through the guide rail 36 , and the positive and negative oxygen ion modules 20 are fixed to the box body 35 in a pull-out manner through the guide rail 37 . The electric control 13 connected to the lead-out line of the dual-zone plasma electric field 14 and the ion generator 25 connected to the lead-out line of the positive and negative oxygen ion modules 20 are all installed in the power control cabinet 40 .

The dual-zone plasma electric field is divided into upper and lower layers, both of which are disassembled and fixed by pulling the upper and lower guide rails on the cabinet. The positive and negative oxygen ion modules are divided into upper and lower layers, and left and right groups, which are also disassembled and fixed by pulling the corresponding guide rails on the box. The wires connected to the dual-area plasma electric field and the positive and negative oxygen ion modules are collected separately, and then lead out through the side of the box and lead to the power control cabinet. The power supply control cabinet is equipped with a main power switch, a short circuit protection device, a working status indicator light and a fault indicator light, etc. The power supply of the power control cabinet adopts 220V, 50Hz.

The utility model is provided with a maintenance door with a lock at the front of the box body for the needs of repair and maintenance, and in order to make the box body stronger, an angle iron rib is set on the inner wall of the box body for reinforcement.

The volume of the box body of the utility model can be increased or decreased correspondingly with the demand of the processing air volume, and the size of the built-in dual-zone plasma electric field and the number of positive and negative oxygen ion modules also change accordingly. The wind resistance generated by the whole device is small, less than 50Pa.

The polluted air flowing into the air inlet of the utility model from the pipeline of the centralized air-conditioning ventilation system first passes through the pre-filter to remove large particles of dust, and then enters the dual-zone plasma electric field, with an average wind speed of about 2.5m/s. Under the action of the high potential field and pulse voltage in the ionization area, all the substances in the air flowing through the area, including dust and bacteria, are activated into plasma. Under the high-energy impact of high-frequency electric pulses, some odor molecules are combined. The key is opened, and then these ionized substances enter the collection area, and are immediately strongly adsorbed by the parallel plates of high-voltage static electricity. The dust is deposited on the plates, bacteria are killed by high-voltage electricity, and part of the odor is decomposed. Subsequently, the air treated by the dual-zone plasma electric field enters the positive and negative oxygen ion module area. Under the action of positive and negative oxygen ion clusters with a concentration of more than 7 million/cubic centimeter, various toxic and harmful gases in the air and Odors, such as formaldehyde, ammonia, benzene series, hydrogen sulfide, TVOC, etc., are instantly decomposed into carbon dioxide, water and other non-toxic, harmless and tasteless small molecules, and the bacteria, viruses and spores that may remain in the air are damaged at the same time , lose activity, can no longer reproduce and die. After the above-mentioned joint action and sequential treatment, the overall effect of removing dust, killing bacteria, decomposing peculiar smell and purifying air is finally achieved. At the same time, a large number of light negative oxygen ions that are helpful to health will enter into each air-conditioned room with the clean air, making people feel as if they are in a fresh and comfortable environment of nature, which greatly improves the health of the human body. People's productivity and quality of life.

Claims (6)

1. a centralized air ventilation system air purifying and sterilizing deodorizing device comprises casing, two-region plasma electric field, air inlet, air outlet, filter and electrical power control cabinet, it is characterized in that: also comprise positive negative oxygen ion module; Described casing one side is provided with air inlet, and opposite side corresponding with it is provided with air outlet, and air inlet is provided with fore filter, and air outlet is provided with post-filter, is provided with two-region plasma electric field and positive negative oxygen ion module between two filters successively; Be located in the outer electrical power control cabinet of casing and be provided with electrical control member and ion generator, three-way being connected that electrical control member and two-region plasma electric field are drawn, ion generator is connected with the both positive and negative polarity that negative oxygen ion module is just drawn.

2. centralized air ventilation system air purifying and sterilizing deodorizing device according to claim 1, it is characterized in that: described positive negative oxygen ion module is provided with the some groups of continuous arc metal coverings that are arranged in parallel from top to bottom in the engineering plastics framework, central authorities at the curved metal face are provided with a fine wire, stretching back is fastenedly connected with the fixed leg at two, and the positive and negative polarities of fine wire and the formation of curved metal face are connected with ion generator in being arranged on electrical power control cabinet by two lead-out wires respectively.

3. centralized air ventilation system air purifying and sterilizing deodorizing device according to claim 1, it is characterized in that: described fore filter and post-filter are low efficient filter, adopt guide rail pull mode to be fixed in the inboard and air outlet inboard of air inlet respectively.

4. centralized air ventilation system air purifying and sterilizing deodorizing device according to claim 1 is characterized in that: described two-region plasma electric field all adopts guide rail pull mode to be connected with casing with positive negative oxygen ion module.

5. centralized air ventilation system air purifying and sterilizing deodorizing device according to claim 1, it is characterized in that: described casing is made by the sheet metal of 1mm～2mm, shell sprays paint, and cabinet wall is provided with the angle bar rib of reinforcing usefulness, and the casing front portion is provided with AD with lock.

6. centralized air ventilation system air purifying and sterilizing deodorizing device according to claim 1 is characterized in that: be provided with battery main switch, short-circuit protection device, working station indicator and fault display lamp in the described electrical power control cabinet.

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