CN1200231C - Controllable humidity air purifying and treatment device - Google Patents

Abstract

The present invention discloses a controllable humidity air purifying and treatment device which is provided with an air spraying system, an air dehumidification system, a sterilizing and disinfecting system and an assisted control system. The device can be used as a processing device for purifying and disinfecting the air in an air conditioner room and is used as an exhaustion processing device in a high risk infectious disease pathogenesis place. When the present invention is used as the processing device for purifying and disinfecting the air in an air conditioner room, the air is purified and disinfected to overcome the defect by adopting the traditional filter, the medicament method, the ultraviolet method, etc. The humidity of the room can be adjusted, and the harmful gas in the room is removed. The indoor air quality of the air conditioner room is greatly improved, and the pathosis synthetic building syndrome and various infectious diseases (such as the SARS) in the room is effectively prevented. When the present invention is used as the exhaustion processing device in the high risk infectious disease pathogenesis place, the pestiferous bacteriovirus in the air can be eliminated and the propagation path can be cut off.

Description

Controllable humidity air purification treatment device

Technical field

The invention relates to an air purification treatment device with controllable humidity. In particular, it can effectively remove bacteria and viruses that cause infectious diseases (such as "SARS" virus) existing in the air, cut off the transmission route, and protect susceptible people.

Background technique

Air purification requires not only the removal of dust particles in the air, but also the removal of bacteria and viruses. Microorganisms such as bacteria and viruses rarely exist alone in the air, and often exist on the surface of dust particles several times larger than them. Dust particles are the carrier of bacteria. The more dust particles in the air, the more opportunities for dust particles to get close to them. , there are more opportunities to attach to it. At present, the purification methods include filtration method, dry heat method, high temperature wet steam sterilization method, drug method and electromagnetic radiation method. The filtration method is that when the air passes through the filter, the dust particles and the bacteria and viruses attached to the surface of the dust particles are intercepted by the filter material. The primary filter is suitable for general air-conditioning systems, and can effectively filter dust particles with a particle size greater than 5 μm as a primary filter. The medium-efficiency filter is used for the pre-protection of the high-efficiency filter, and it is used in the air-conditioning system with a high degree of cleanliness. The medium-efficiency filter can effectively filter the dust particles with a particle size larger than 1 μm. The bacteria removal efficiency of the high-efficiency filter is almost 100%. The dry heat method is a method of heat treatment in dry air, based on the principle that the oxidation under the action of high heat treatment destroys microorganisms, but the temperature required is as high as 160°C and the time is as long as 1-2 hours. High-temperature wet steam sterilization, based on the principle of coagulation of protein in bacterial cells under the action of damp heat, requires a lower temperature and shorter time than the dry heat method. For example, it only takes 12 minutes at a temperature of 121°C or 2 minutes at a temperature of 134°C. Sterilizes in minutes. The drug method is to spray or fumigate drugs in the air to kill bacteria and viruses, such as using peracetic acid fumigation and glutaraldehyde spray air to eliminate the "SARS" virus in the air. The electromagnetic radiation method is based on destroying the protein and nucleic acid of bacteria for sterilization, such as ultraviolet sterilization. Various existing purification methods have the following disadvantages: high-efficiency filters have large resistance and are expensive, so it is not suitable to use such filters in comfortable air-conditioned rooms or hospital wards. However, the medium-efficiency filter cannot effectively remove bacteria and viruses in the air, and the domestic medium-effect filter test results show that the bacteria-removing efficiency is only 80%. When the air passes through the filter, the dust particles, bacteria and viruses trapped on the surface of the filter are difficult to clean. At the same time, the bacteria and viruses tend to reproduce on the surface of the filter material and are taken away by the filtered air flow. Dry heat method, high temperature wet steam sterilization method is not suitable for air-conditioned rooms or hospital wards where people often move. The special-smelling organic gases produced by the volatilization of pharmaceutical disinfectants can irritate the human respiratory organs and easily cause nausea and vomiting. At the same time, these volatile organic gases pollute the air and are harmful to the human body. The workload of disinfection is heavy, and specialized staff are required to carry out disinfection work. Ultraviolet disinfection and sterilization requires long-term irradiation of exposed objects, and people cannot enter during the irradiation time, otherwise it will damage human skin cells and have obvious carcinogenic effects. Once the irradiation is stopped and human activities are resumed, especially after continuous access to outdoor air or fresh air, the original sterilization effect will soon disappear; the ultraviolet lamp is also accompanied by ozone generation. In addition, none of the above methods can eliminate harmful gases in the air, nor can it adjust the humidity of the air.

Contents of Invention

The object of the present invention is to provide an air purification treatment device with controllable humidity.

It has an air spray system, an air dehumidification system, and a sterilization and disinfection system. The air spray system is: two water pipes are arranged at the bottom of the circulating water tank, one is connected to the circulating pump, and the other is connected to the drainage control valve. The upper part of the circulating water tank is arranged Filling, air deflectors are arranged on the side of the circulating water tank, and water supply control valves are installed on the side wall of the circulating water tank; nozzles are arranged on the top of the filling, and the nozzles are connected to the circulation pump through water pipes; the air dehumidification system is arranged on the upper part of the air spray system, located in the air cylinder above the nozzles One end of the internal evaporator is connected to the throttling part, the other end is connected to the compressor, the other end of the compressor is connected to the condenser, the condenser is arranged on the upper part of the evaporator, the other end of the condenser is connected to the throttling part, and the upper part of the condenser is arranged The fan; the drainage sterilization and disinfection system is arranged at the lower part of the air spray system. An electric heater is installed in the disinfection tank. tank connected.

The beneficial effect of the present invention is that, when used as an air purification and disinfection treatment device in an air-conditioned room, it can not only perform air dust removal and purification and disinfection, overcome the defects of traditional methods such as filters, drug methods and ultraviolet rays to purify the air, but also can adjust the room humidity, Eliminate harmful gases in the room, greatly improve the indoor air quality of the air-conditioned room, effectively prevent the "sick building syndrome" and various infectious diseases (such as "SARS") in the air-conditioned room; as a hospital ward and a place where high-risk infectious diseases occur When installing a special exhaust air treatment device, it can eliminate the bacteria and viruses that spread diseases in the air and cut off the transmission route.

Description of drawings

The accompanying drawing is a schematic diagram of a humidity-controllable air purification device.

Detailed ways

The controllable humidity air purification treatment device includes an air washing system, an air dehumidification system, a sterilization and disinfection system and their auxiliary control systems. The air washing system is as follows: two water pipes are arranged at the bottom of the circulating water tank 16, one is connected with the circulating pump 4, and the other is connected with the drainage control valve 11; The water supply control valve 10 and the artificial water inlet 19 are arranged on the side wall of the circulating water tank 16; the nozzle 3 is arranged on the top of the filler 2, and the nozzle 3 is connected with the circulation pump 4 through a water pipe. The air dehumidification system is arranged on the upper part of the air washing system. One end of the evaporator 5 located in the air cylinder 18 on the upper part of the nozzle 3 is connected to the throttling member 8, the other end is connected to the compressor 7, and the other end of the compressor 7 is connected to the condenser 6. , the condenser 6 is arranged on the upper part of the evaporator 5 , and the other end of the condenser 6 is connected with the throttle member 8 . A fan 9 is arranged on the top of the condenser 6 . The drainage sterilization and disinfection system is arranged at the lower part of the air washing system. An electric heater 12 is installed in the disinfection tank 17. The water pipe at the bottom of the disinfection tank 17 is connected with the drainage control valve 15. The side pipe of the disinfection tank is connected with the disinfectant control valve 13, and the other end is connected with the disinfectant The liquid tank 14 is connected. The auxiliary control system includes the following aspects: a humidity sensor 20 and a humidity controller 21 are set at the air deflector 1 to control the compressor to stop; a liquid level sensor 22 and a liquid level controller 23 are set in the circulating water tank 16 to control the switch of the water supply control valve 10; disinfection Establish liquid level sensor 24 and liquid level controller 25 control drainage control valve 11 switches in water tank 17; Establish temperature sensor 28 and temperature and time set controller 26 to control the disinfection temperature and the disinfection time of electric heater 12 in disinfection water tank 17; The disinfectant solution dosage controller 27 controls the switch of the disinfectant solution control valve 13 .

The invention consists of an air washing system, an air dehumidification system, a sterilization and disinfection system and their auxiliary control systems. The working process of the air washing system is that the air flows into the filler 2 through the air deflector 1, and fully contacts with the water droplets ejected from the nozzle 3 in the filler 2. Harmful gases, dust particles, bacteria, and viruses in the air pass through inertia, interception and diffusion. This effect dissolves into the water, the air is purified in the filler 2, and at the same time, the air is humidified by the water droplets in the filler 2 and is almost saturated with humid air. The air and water flow in the opposite direction, and the water droplets flow into the circulating water tank 16, and then the circulating water pump 4 provides power. , become water droplets again through the nozzle 2, and enter the filler 2 to purify and humidify the air that continuously flows in from the wind deflector 1, and the water in the circulating water tank 16 is replenished through the water supply control valve 10. The working process of the air dehumidification system is that after the saturated humid air is cooled and dehumidified in the evaporator 5, it enters the condenser 6 and is heated by isohumidity, and then is discharged through the fan 9. The system composed of the compressor 7, the condenser 6, the expansion valve 8 and the evaporator 5 operates in a refrigeration cycle mode. The working process of the sterilization and disinfection system is that the circulating water discharged from the circulating water tank 16 is sterilized and sterilized by heating the electric heater 12 at a high temperature in the sterilizing and disinfecting water tank 17 or adding the disinfectant in the disinfection box 14 for sterilization and disinfection, and then passes through the control valve 15 according to the disinfection Time required to discharge. The auxiliary control system includes the control of compressors, heaters and control valves (10, 11, 15, 13).

The control of compressor 7 adopts two-position control. When the relative humidity measured by the humidity sensor 20 at the wind deflector 1 exceeds the upper limit of the given relative humidity value, the humidity controller 21 initiates an action to connect the circuit, the compressor 7 starts running, and the dehumidification process is realized, and the air humidity at the outlet of the fan 9 decreases. When the relative humidity measured by the humidity sensor 20 at the air deflector 1 is lower than the given relative humidity lower limit value, the humidity controller 21 sends an action to disconnect the circuit, the compressor 7 stops running, and the humidification process is realized, and the air at the outlet of the fan 9 is relatively Humidity increases. In this way, the room humidity is always controlled within the humidity range required by the comfort air conditioner, which meets the comfort requirements of the human body.

The water in the circulating water tank should be replaced regularly, which is realized by controlling the water supply control valve 10 and the drainage control valve 11. The liquid level in the circulating water tank is also realized by controlling the water supply control valve 10 and the drainage control valve 11 .

The control of the heater 12 includes the control of the sterilization time and the sterilization temperature. Set the upper and lower limits of the disinfection temperature and the upper limit of the disinfection time according to medical requirements. When the measured liquid level of the liquid level sensor 24 in the disinfection water tank 17 rose to the upper limit value, the controller 26 sent an action to connect the electric heater 12, and the heating began; When the lower limit value of the disinfection temperature, the disinfection time begins to count; when the measured temperature of the temperature sensor 28 in the disinfection water tank 17 rose to the upper limit of the disinfection temperature, the controller 26 sent an action to disconnect the electric heater 12; when the disinfection water tank When the temperature measured by the temperature sensor 28 in 17 dropped to the lower limit of the set disinfection temperature, the controller 26 sent an action to connect the electric heater 12; when the disinfection time reached the upper limit of the set disinfection time, the controller 26 sent an action to disconnect the electric heater The heater 12 completes the sterilization and disinfection work.

The control of the sterilizing solution control valve 10 is set according to the liquid level and the sterilizing solution consumption of the sterilizing water tank 17. The amount of disinfectant is determined according to medical requirements. When the liquid level measured by the liquid level sensor 24 in the disinfection water tank 17 rose to the upper limit of the given liquid level, the controller 27 sent an action to open the control valve 10; , the controller 27 issues an action to close the control valve 10 .

Drainage control valve 15 is set according to disinfection water tank 17 liquid levels and disinfection time. When the disinfection time reaches the upper limit set by medical requirements, the controller 26 sends an action to open the control valve 15; when the liquid level measured by the liquid level sensor 24 in the disinfection tank 17 drops to the set lower limit of the liquid level , the controller 26 issues an action to close the control valve 15 .

Whether to use heat disinfection or disinfectant solution can be freely selected by the user.

When the present invention is used as an air purification and disinfection treatment device in an air-conditioned room, the air dehumidification system participates in the work; when it is used as an exhaust treatment device in hospital wards and places with high-risk infectious diseases, the air dehumidification system does not participate in the work.

Claims (9)

1. controlled humidity air purification processing equipment, it is characterized in that: it has air spray system, air dehumidification system, sterilizing system, the air spray system is: two water pipes are arranged in circulating water chennel (16) bottom, one links to each other with circulating pump (4), another root links to each other with draining control valve (11), filler (2) is arranged on circulating water chennel (16) top, circulating water chennel (16) side arrangement wind deflector (1), and circulating water chennel (16) sidewall is provided with water supply control valve (10); Shower nozzle (3) is arranged on filler (2) top, and shower nozzle (3) is connected with circulating pump (4) by water pipe; The air dehumidification system layout is on air spray system top, evaporimeter (5) one ends that are positioned at shower nozzle (3) top air duct (18) link to each other with throttle part (8), the other end links to each other with compressor (7), compressor (7) other end is connected with condenser (6), condenser (6) is arranged in evaporimeter (5) top, condenser (6) other end links to each other with throttle part (8), and blower fan (9) is arranged on condenser (6) top; Draining sterilizing system layout is in the bottom of air spray system, in the sterilization tank (17) electric heater (12) is set, sterilization tank (17) bottom water pipe links to each other with draining control valve (15), sterilization tank side pipeline links to each other with thimerosal control valve (13), and control valve (13) other end links to each other with thimerosal case (14).

2. a kind of controlled humidity air purification processing equipment according to claim 1 is characterized in that said control valve (10), (11), (13), (15) are motor-driven valve, magnetic valve or hand-operated valve.

3. a kind of controlled humidity air purification processing equipment according to claim 1 is characterized in that said circulating water chennel (16) is provided with artificial filler (19).

4. a kind of controlled humidity air purification processing equipment according to claim 1 is characterized in that being provided with humidity sensor (20) near the said wind deflector (1), and the humidity controller (21) that is used to control air humidity.

5. a kind of controlled humidity air purification processing equipment according to claim 1 is characterized in that being provided with in the said circulating water chennel (16) level sensing display (22), fluid level controller (23) control water supply control valve (10).

6. a kind of controlled humidity air purification processing equipment according to claim 1 is characterized in that being provided with in the said sterilization tank (17) liquid level sensor (24), fluid level controller (25) control draining control valve (11).

7. a kind of controlled humidity air purification processing equipment according to claim 1 is characterized in that being provided with in the said sterilization tank (17) temperature sensor (28), temperature and time controller (26).

8. a kind of controlled humidity air purification processing equipment according to claim 1 is characterized in that said sterilization tank (17) is provided with thimerosal and controls thimerosal control valve (13) with amount controller (27).

9. a kind of controlled humidity air purification processing equipment according to claim 1 is characterized in that disinfecting with electric heater (12) heating disinfection or thimerosal sterilization of water that said sterilization tank (17) has polluted.