CN114852309A - Ship infectious disease prevention and control air supply system and method - Google Patents
Ship infectious disease prevention and control air supply system and method Download PDFInfo
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- CN114852309A CN114852309A CN202210262660.1A CN202210262660A CN114852309A CN 114852309 A CN114852309 A CN 114852309A CN 202210262660 A CN202210262660 A CN 202210262660A CN 114852309 A CN114852309 A CN 114852309A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63J—AUXILIARIES ON VESSELS
- B63J2/00—Arrangements of ventilation, heating, cooling, or air-conditioning
- B63J2/02—Ventilation; Air-conditioning
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L9/00—Disinfection, sterilisation or deodorisation of air
- A61L9/16—Disinfection, sterilisation or deodorisation of air using physical phenomena
- A61L9/18—Radiation
- A61L9/20—Ultra-violet radiation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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Abstract
The invention relates to a ship infectious disease prevention and control air supply system and a method, wherein a fresh air loop of the system comprises an air pretreatment and sterilization device, a dehumidification rotating wheel, a first seawater cooler, a second seawater cooler, a third ultraviolet sterilizer, a second fan and an electric air valve; the regeneration air loop comprises a first electromagnetic three-way air valve, a second electromagnetic three-way air valve, a condenser, a waste gas heat exchanger, a first ultraviolet sterilizer, a second ultraviolet sterilizer and a first fan. The invention can control the source of the processing wind and the regeneration wind according to the protection requirement of infectious diseases, carry out ultraviolet sterilization, select ship exhaust gas or utilize a seawater source heat pump to absorb heat in seawater to regenerate the adsorption material according to the running state of the ship, realize the virus-free circulation of the air in the ship, and have lower running cost, safety and reliability.
Description
Technical Field
The invention relates to the technical field of air supply for preventing and controlling infectious diseases of ships, in particular to an air supply system and method for preventing and controlling the infectious diseases of ships.
Background
For a ship system, the quality of an air supply system is directly related to the riding comfort of a crew and passengers. The air in the cabin of the ship comprises at least 652 components, mainly comprising: aliphatic hydrocarbon, aromatic hydrocarbon, oxygen-containing organic matters and the like, wherein benzene, dimethylbenzene, escherichia coli, staphylococcus aureus, aspergillus niger and the like have great harm to a human body, and if the ship lives in the closed environment for a long time, the functions of the human body are seriously damaged, so that the existing ship air supply system is urgently required to be modified and upgraded to improve the function of preventing infectious diseases.
The ship cabin also has more high-temperature high-humidity environments, the rotating wheel dehumidification can achieve the deep dehumidification effect, but the adsorption materials used for the rotating wheel dehumidification, such as common silica gel, lithium chloride and the like, have the regeneration temperature higher than 100 ℃, are directly heated by the regeneration heating device, and have huge energy consumption. A large amount of waste gas and waste heat can be released in the running process of the ship, wherein the diesel engine is the core of the whole ship, and the temperature of the waste gas is 260-400 ℃. According to statistics, the heat taken away by the waste gas accounts for about 30% of the total input energy of the diesel engine, and the direct discharge of a large amount of waste gas and waste heat pollutes the environment and also does not accord with the current concept of energy conservation and emission reduction. The rotary wheel dehumidification technology is applied to the dehumidification of the ship infectious disease prevention and control air supply system, the actual operation working condition of a ship can be combined, the waste heat of the ship is utilized, and the energy consumption in the dehumidification process can be obviously reduced.
Chinese patent application No. CN201110206159.5 discloses a two-stage rotary wheel dehumidification air-conditioning system for ships and an operation method thereof, which uses ship waste heat as a renewable energy source of the rotary wheel, but does not have a prevention function for infectious diseases; although Chinese patents with application numbers of CN202010281424.5 and CN202010425905.9 provide a sterilization and disinfection system for air supply of ships, the existing waste heat of the ships is not utilized, and the energy consumption is high; in order to realize the sterilization and disinfection of ships, the Chinese patent with the application number of CN202022596889.8 integrates triple purification of filtration and adsorption, ultraviolet sterilization and disinfection and plasma sterilization and disinfection, but in the plasma sterilization and disinfection process, the harm of organic byproducts such as formaldehyde, acetaldehyde and acetone exists.
Disclosure of Invention
In order to solve the problems, the invention provides a ship infectious disease prevention and control air supply system and a ship infectious disease prevention and control air supply method.
The specific scheme is as follows:
the utility model provides a ship infectious disease prevention and control air supply system, includes new trend return circuit and regeneration wind return circuit, wherein:
the fresh air loop comprises an air pretreatment and sterilization device, a dehumidification rotating wheel, a first seawater cooler, a second seawater cooler, a third ultraviolet sterilizer, a second fan and an electric air valve; one end of an electric air valve is connected with the inside of the cabin in series through an air pipe, the other end of the electric air valve is connected into a fresh air inlet pipe through the air pipe, one end of the fresh air inlet pipe is connected with the outside in series, the other end of the fresh air inlet pipe is connected with one end of an air pretreatment and sterilization device in series, the other end of the air pretreatment and sterilization device is connected with one end of a first dehumidification area of a dehumidification rotating wheel in series through the air pipe, the other end of the first dehumidification area is connected with one end of a second seawater cooler in series through the air pipe, the other end of the second seawater cooler is connected with one end of the second dehumidification area in series through the air pipe, the other end of the first seawater cooler is connected with one end of a third ultraviolet sterilizer in series through the air pipe, the other end of the third ultraviolet sterilizer is connected with an air inlet of a second fan through the air pipe, and an air outlet of the second fan is connected with the inside of the cabin in series;
the regeneration air loop comprises a first electromagnetic three-way air valve, a second electromagnetic three-way air valve, a condenser, a waste gas heat exchanger, a first ultraviolet sterilizer, a second ultraviolet sterilizer and a first fan; the first end of the first electromagnetic three-way air valve is connected with the inside of the cabin in series through an air pipe, the second end of the first electromagnetic three-way air valve is connected with the outside of the cabin in series through an air pipe, the third end of the first electromagnetic three-way air valve is connected with the first end of the second electromagnetic three-way air valve in series through an air pipe, the second end and the third end of the second electromagnetic three-way air valve are respectively connected with one end of a condenser and a waste gas heat exchanger in a seawater source heat pump in series through air pipes, the other ends of the condenser and the waste gas heat exchanger are jointly connected into one end of a second ultraviolet sterilizer through the air pipes, the other end of the second ultraviolet sterilizer is connected into air inlets of a first regeneration area and a second regeneration area of the dehumidifying rotating wheel through the air pipes, air outlets of the first regeneration area and the second regeneration area of the dehumidifying rotating wheel are connected into one end of the first ultraviolet sterilizer through the air pipes, the other end of the first ultraviolet sterilizer is connected with an air inlet of a first fan through the air pipes, and an air outlet of the first fan is connected with the outside of the first fan in series.
Furthermore, a plurality of layers of ultraviolet germicidal lamps are arranged in the air pipe at intervals of rated distance.
Furthermore, the air pipe, the air preprocessing and sterilizing device and the ultraviolet sterilizing lamps arranged in the first ultraviolet sterilizer, the second ultraviolet sterilizer and the third ultraviolet sterilizer are all arranged in parallel to the direction of the air flow; the distance between the ultraviolet germicidal lamps in the air duct is 10-50cm, and the distance between the ultraviolet germicidal lamps and the wall of the air duct on the irradiation surface is less than 50 cm.
Furthermore, the ultraviolet rays used in the air pretreatment and sterilization device, the first ultraviolet sterilizer, the second ultraviolet sterilizer and the third ultraviolet sterilizer are all short-wave ultraviolet rays with the wavelength of 200-280 nanometers.
Furthermore, the cross section area of the ultraviolet sterilizer box body perpendicular to the axial direction of the air pipe is 3-4 times of the cross section area of the air pipe.
Furthermore, a pressure compensator is additionally arranged at the air pipe between the first electromagnetic three-way air valve and the second electromagnetic three-way air valve.
Further, the seawater source heat pump comprises a compressor, a condenser, an electronic expansion valve and an evaporator; when the main diesel engine of the ship runs, high-temperature waste gas generated by running flows into the waste gas heat exchanger to heat the regenerated air; when the main diesel engine of the ship does not operate, the heat energy in seawater is absorbed by an evaporator in the seawater source heat pump, the heat energy is compressed into high-temperature high-pressure heat pump working medium by a compressor in the seawater source heat pump, and the regenerated air is heated in a condenser by the high-temperature high-pressure heat pump working medium.
The invention provides a ship infectious disease prevention and control air supply method, and a ship infectious disease prevention and control air supply system based on the embodiment of the invention comprises the following steps: the electric air valve is opened when the prevention and control are needed and is closed when the prevention and control are not needed; the first electromagnetic three-way air valve is opened at the second end and the third end when in need of prevention and control and closed at the first end, and is opened at the first end and the third end when in no need of prevention and control and closed at the second end.
Further, the first uv sterilizer, the second uv sterilizer, and the third uv sterilizer are turned on when the prevention and control are required, and turned off when the prevention and control are not required.
Furthermore, the ultraviolet germicidal lamp in the air duct is turned on when the prevention and the control are needed, and is turned off when the prevention and the control are not needed.
By adopting the technical scheme, the invention can utilize the ship waste heat or the seawater source heat pump as the renewable energy for adsorbing material desorption, realizes virus-free circulation of the air in the ship, and has the advantages of low operation cost, safety and reliability.
Drawings
Fig. 1 is a schematic diagram of the overall structure of the system according to the embodiment of the present invention.
FIG. 2 is a schematic view showing the structure of the air pre-treating and sterilizing apparatus according to this embodiment.
Fig. 3 is a schematic structural diagram of the air duct provided with the ultraviolet disinfection lamp in the embodiment.
Fig. 4 is a schematic view showing the structure of the ultraviolet sterilizer in this embodiment.
Detailed Description
To further illustrate the various embodiments, the invention provides the accompanying drawings. The accompanying drawings, which are incorporated in and constitute a part of this disclosure, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the embodiments. Those skilled in the art will appreciate still other possible embodiments and advantages of the present invention with reference to these figures.
The invention will now be further described with reference to the accompanying drawings and detailed description.
Example (b):
the embodiment of the invention provides a ship infectious disease prevention and control air supply system, which comprises a fresh air loop and a regenerated air loop as shown in figure 1.
The fresh air loop comprises an air pretreatment and sterilization device 1, a dehumidification rotating wheel 4, a first seawater cooler 18, a second seawater cooler 20, a third ultraviolet sterilizer 16, a second fan 14 and an electric air valve 13. One end of an electric air valve 13 is connected with the interior of the cabin in series through an air pipe, the other end of the electric air valve 13 is connected into a fresh air inlet pipe through the air pipe, fresh air and return air are converged into treated air A, one end of the fresh air inlet pipe is connected with the outside in series, the other end of the fresh air inlet pipe is connected with one end of an air pretreatment and sterilization device 1 in series, the other end of the air pretreatment and sterilization device 1 is connected with one end of a first dehumidification area 4-IV of a dehumidification rotating wheel 4 in series through the air pipe, the other end of the first dehumidification area 4-IV is connected with one end of a second seawater cooler 20 in series through the air pipe, the other end of the second seawater cooler 20 is connected with one end of a second dehumidification area 4-II in series through the air pipe, the other end of the second dehumidification area 4-II is connected with one end of a first seawater cooler 18 in series through the air pipe, the other end of the first seawater cooler 18 is connected with one end of a third ultraviolet sterilizer 16 through the air pipe in series, the other end of the third ultraviolet sterilizer 16 is connected in series with the air inlet of the second fan 14 through an air pipe, and the air outlet of the second fan 14 is connected in series with the inside of the cabin.
The regeneration air loop comprises a first electromagnetic three-way air valve 10, a second electromagnetic three-way air valve 9, a condenser 8, a waste gas heat exchanger 7, a first ultraviolet sterilizer 2, a second ultraviolet sterilizer 6 and a first fan 3; the first end of a first electromagnetic three-way air valve 10 is connected with the inside of the cabin in series through an air pipe, the second end of the first electromagnetic three-way air valve 10 is connected with the outside of the cabin in series through an air pipe, the third end of the first electromagnetic three-way air valve 10 is connected with the first end of a second electromagnetic three-way air valve 9 in series through an air pipe, the second end and the third end of the second electromagnetic three-way air valve 9 are respectively connected with a condenser 8 and one end of a waste gas heat exchanger 7 in a sea water source heat pump in series through air pipes, the other ends of the condenser 8 and the waste gas heat exchanger 7 are jointly connected into one end of a second ultraviolet sterilizer 6 through air pipes, the other end of the second ultraviolet sterilizer 6 is connected into air inlets of a first regeneration area 4-I and a second regeneration area 4-III of a dehumidifying rotating wheel 4 through air pipes, air outlets of the first regeneration area 4-I and the second regeneration area 4-III of the dehumidifying rotating wheel 4 are connected into one end of a first ultraviolet sterilizer 2 through air pipes, the other end of the first ultraviolet sterilizer 2 is connected with the air inlet of the first fan 3 in series through an air pipe, and the air outlet of the first fan 3 is connected with the outside in series.
Further, in order to achieve better air sterilization effect, the embodiment further includes multiple layers of ultraviolet germicidal lamps 24(UVC) disposed in the air duct at regular intervals, as shown in fig. 3, specifically disposed in the air duct between the air pretreatment and sterilization apparatus 1 and the interior of the cabin of the ship and between the first ultraviolet sterilizer 2 and the second ultraviolet sterilizer 6.
As shown in fig. 2, the air pre-processing and sterilizing apparatus 1 includes a high efficiency filter 22 and an ultraviolet germicidal lamp 23. The ultraviolet rays used in the air pretreatment and sterilization device 1 and the first, second and third ultraviolet sterilizers 2, 6 and 16 are short-wave ultraviolet rays with the wavelength of 200-280 nanometers (nm), and have the sterilization function. The radiation intensity and irradiation distance of the ultraviolet germicidal lamps in the air pre-treating and sterilizing apparatus 1 and the first, second and third ultraviolet sterilizers 2, 6 and 16 have the following exponential relationship:
Y＝10 (2.8859-0.7608x)
where Y denotes the radiation intensity and x denotes the irradiation distance.
The ultraviolet germicidal lamps arranged in the air duct, the air preprocessing and sterilizing device 1 and the first ultraviolet sterilizer 2, the second ultraviolet sterilizer 6 and the third ultraviolet sterilizer 16 are all arranged in parallel to the direction of air flow, the distance between the ultraviolet germicidal lamps in the air duct is set to be 10-50cm in the embodiment, and the distance between the ultraviolet germicidal lamps and the wall of the air duct on the irradiation surface is less than 50 cm.
The first, second and third ultraviolet sterilizers 2, 6 and 16 are also static pressure chambers having a cross-sectional area about 3 to 4 times that of the air duct, and have a static pressure function, so that the process air or the regeneration air flows more stably in the ultraviolet sterilizers with a coefficient of non-uniformity as small as possible.
The rotating speeds of the first fan 3 and the second fan 14 are controlled by an electrical control system, so that the flow speed of the processing air or the regeneration air in the ultraviolet sterilizer is about 3m/s, the residence time of the air in the effective irradiation range of ultraviolet rays is prolonged, and the sterilization effect is improved.
The dehumidification runner 4 is driven by a motor 5, and the dehumidification runner 4 is single-runner two-stage dehumidification and comprises two dehumidification areas and two regeneration areas. The dehumidification area and the regeneration area of the dehumidification rotating wheel 4 are easy to cross air due to large air pressure difference, and a pressure compensator 11 needs to be additionally arranged at an air inlet of the regeneration area (namely, an air pipe between the first electromagnetic three-way air valve 10 and the second electromagnetic three-way air valve 9), so that the pressure of the areas where the dehumidification rotating wheel 4 processes air and regenerates air is balanced.
The first seawater cooler 18 and the second seawater cooler 20 are respectively controlled by a first water pump 17 and a second water pump 21.
The seawater source heat pump comprises a compressor 19, a condenser 8, an electronic expansion valve 12 and an evaporator 15, and the temperature of a heat pump working medium in the condenser 8 can be adjusted through an electric control system. When the main diesel engine of the ship does not operate, the seawater source heat pump needs to be started due to the lack of waste gas for the regeneration of the adsorbing material of the rotating wheel, the heat pump working medium in the heat pump system is compressed into the high-temperature and high-pressure heat pump working medium by the compressor 19 in the operation process, and the high-temperature and high-pressure heat pump working medium heats the regenerated air in the condenser 8 so that the adsorbing material in the regeneration area is desorbed.
In the use process, a person skilled in the art can select one or two of the seawater source heat pump and the waste gas heat exchanger 7 to operate according to the running state of the ship to heat the regeneration wind.
In this embodiment, the operation states of the air pre-processing and sterilizing device 1, the first ultraviolet sterilizer 2, the second ultraviolet sterilizer 6, the third ultraviolet sterilizer 16, the first fan 3, the second fan 14, the motor 5, the compressor 19, the electronic expansion valve 12, the first electromagnetic three-way air valve 10, the second electromagnetic three-way air valve 9, the electric air valve 13, the first water pump 17 and the second water pump 21 are all controlled by an electrical control system (not shown in fig. 1).
The working process of the system of the embodiment is as follows:
in the fresh air loop, when the prevention and control are needed, the electric air valve 13 is closed, the processing air A is completely composed of outdoor fresh air, the ultraviolet germicidal lamp in the air pipe is turned on by the electric appliance control system, and the intensity of the ultraviolet germicidal lamp is controlled according to the requirement to kill germs. The processing air A is subjected to efficient filtration and ultraviolet sterilization in the air pretreatment and sterilization device 1, primary dehumidification is carried out in the first dehumidification area 4-IV of the dehumidification rotating wheel 4 after primary sterilization to form primary post-processing air C, the temperature of the dried air is raised due to the fact that adsorption heat can be released in the dehumidification process, the second water pump 21 is started for improving the dehumidification effect of secondary dehumidification, the temperature of the processing air C is reduced by the second seawater cooler 20, the relative humidity is improved to form processing air D, and the processing air E is formed after secondary dehumidification in the second dehumidification area 4-II. In order to meet the air supply requirement, the first water pump 17 is started, the incoming treated air E is cooled again in the first seawater heat exchanger by using seawater, the third ultraviolet sterilizer 16 is started, and finally the treated air G sucked and discharged by the second fan 14 is sent into the cabin at a certain air speed. When the prevention and control are not needed, the electric air valve 13 is opened, the outdoor fresh air and the indoor return air are mixed to form the processing air A, so that the energy consumption in the dehumidification process is saved, the sterilizing lamps in the air pretreatment and sterilization device 1 and the third ultraviolet sterilizer 16 are closed, the subsequent processing flow of the processing air A is the same as that of the prevention and control, and the description is omitted.
In the regeneration wind loop, when the prevention and control are needed, the second end and the third end of the first electromagnetic three-way wind valve 10 are opened, and the regeneration wind H comes from outdoor fresh wind completely. The first and second ultraviolet sterilizers 2 and 6 of the regeneration side are simultaneously activated and the intensity thereof is controlled as needed to stabilize the pressure and kill germs. The pressure compensator 11 is adjusted to make the pressure on the process air side and the regeneration air side of the desiccant rotor 4 substantially equal to each other, thereby reducing the cross wind. The regenerated wind H is heated by a condenser 8 in the seawater source heat pump to form processing wind J, or is heated by a ship waste gas heat exchanger 7 to form processing wind I. The processing air I or the processing air J is conveyed into the second ultraviolet sterilizer 6 through an air pipe, and is divided into two streams of regeneration air K, L after being sterilized and inactivated by ultraviolet rays, the regeneration air K, L regenerates the adsorption material in the first regeneration area 4-I and the second regeneration area 4-III of the dehumidification rotating wheel 4 to respectively form regeneration air M, N, and the regeneration air converges together and flows into the first ultraviolet sterilizer 2 to perform secondary pressure stabilization and sterilization and inactivation so as to prevent the pollution to the external environment. When the prevention and control are not required, the first ultraviolet sterilizer 2 and the second ultraviolet sterilizer 6 are not turned on. The first end and the third end of the first electromagnetic three-way air valve 10 are opened by the control system, and the cabin return air is led to be used as regeneration air H. The subsequent regeneration process of the regeneration wind H is the same as that when the control is required, and is not described herein again.
On the regenerative heat source, when the main diesel engine of the ship is running, a part of high-temperature exhaust gas is introduced into the exhaust gas heat exchanger 7, and the heat energy of the high-temperature exhaust gas is enough to heat the regenerative wind to the required regeneration temperature. When the main diesel engine of the ship does not operate, the adsorption material cannot be regenerated due to the absence of corresponding waste gas, so that the seawater source heat pump unit needs to be started, and in the operation process of the unit, the heat pump working medium absorbs heat energy in seawater in the evaporator 15, is compressed into a high-temperature and high-pressure heat pump working medium by the compressor 19, and heats regenerated air in the condenser 8.
When the treated air of the system of the embodiment does not need to be prevented and controlled, the treated air consists of part of return air in the cabin and outdoor fresh air, so that the energy consumption of the rotary wheel dehumidification air-conditioning system can be reduced; when the air conditioner needs to be prevented and controlled, the air conditioner consists of all fresh air, and can prevent germs contained in indoor return air from entering the fresh air so as to prevent further propagation. For the source of the adsorption material regeneration heat energy, according to the running state of the ship, the waste gas of the ship is selected to heat the regeneration air, or the heat energy in the seawater is absorbed by a seawater source heat pump for regeneration. The method can effectively recover the related waste heat in the running process of the ship and improve the energy utilization rate.
While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. The utility model provides a boats and ships infectious disease prevents accuse air supply system which characterized in that: including new trend return circuit and regeneration wind return circuit, wherein:
the fresh air loop comprises an air pretreatment and sterilization device, a dehumidification rotating wheel, a first seawater cooler, a second seawater cooler, a third ultraviolet sterilizer, a second fan and an electric air valve; one end of an electric air valve is connected with the inside of the cabin in series through an air pipe, the other end of the electric air valve is connected into a fresh air inlet pipe through the air pipe, one end of the fresh air inlet pipe is connected with the outside in series, the other end of the fresh air inlet pipe is connected with one end of an air pretreatment and sterilization device in series, the other end of the air pretreatment and sterilization device is connected with one end of a first dehumidification area of a dehumidification rotating wheel in series through the air pipe, the other end of the first dehumidification area is connected with one end of a second seawater cooler in series through the air pipe, the other end of the second seawater cooler is connected with one end of the second dehumidification area in series through the air pipe, the other end of the first seawater cooler is connected with one end of a third ultraviolet sterilizer in series through the air pipe, the other end of the third ultraviolet sterilizer is connected with an air inlet of a second fan through the air pipe, and an air outlet of the second fan is connected with the inside of the cabin in series;
the regeneration air loop comprises a first electromagnetic three-way air valve, a second electromagnetic three-way air valve, a condenser, a waste gas heat exchanger, a first ultraviolet sterilizer, a second ultraviolet sterilizer and a first fan; the first end of the first electromagnetic three-way air valve is connected with the inside of the cabin in series through an air pipe, the second end of the first electromagnetic three-way air valve is connected with the outside of the cabin in series through the air pipe, the third end of the first electromagnetic three-way air valve is connected with the first end of the second electromagnetic three-way air valve in series through the air pipe, the second end and the third end of the second electromagnetic three-way air valve are respectively connected with a condenser and one end of a waste gas heat exchanger in the seawater source heat pump in series through the air pipes, the other ends of the condenser and the waste gas heat exchanger are jointly connected into one end of a second ultraviolet sterilizer through the air pipes, the other end of the second ultraviolet sterilizer is connected into the first regeneration area and the air inlet of the second regeneration area of the dehumidifying rotating wheel through the air pipes, the air outlets of the first regeneration area and the second regeneration area of the dehumidifying rotating wheel are connected into one end of the first ultraviolet sterilizer through the air pipes, the other end of the first ultraviolet sterilizer is connected with the air inlet of the first fan through the air pipes in series, and the air outlet of the first fan is connected with the outside of the cabin in series.
2. The air supply system for preventing and controlling infectious diseases of ships according to claim 1, characterized in that: and a plurality of layers of ultraviolet germicidal lamps are arranged in the air duct at intervals of rated distance.
3. The air supply system for preventing and controlling infectious diseases of ships according to claim 2, characterized in that: the ultraviolet sterilization lamps arranged in the air pipe, the air pretreatment and sterilization device, the first ultraviolet sterilizer, the second ultraviolet sterilizer and the third ultraviolet sterilizer are all arranged in parallel to the direction of the air flow; the distance between the ultraviolet germicidal lamps in the air duct is 10-50cm, and the distance between the ultraviolet germicidal lamps and the wall of the air duct on the irradiation surface is less than 50 cm.
4. The air supply system for preventing and controlling infectious diseases of ships according to claim 1, characterized in that: the ultraviolet rays used in the air pretreatment and sterilization device, the first ultraviolet sterilizer, the second ultraviolet sterilizer and the third ultraviolet sterilizer are all short-wave ultraviolet rays with the wavelength of 200-280 nanometers.
5. The air supply system for preventing and controlling infectious diseases of ships according to claim 1, characterized in that: the cross section area of the ultraviolet sterilizer box body vertical to the axial direction of the air pipe is 3-4 times of the cross section area of the air pipe.
6. The air supply system for preventing and controlling infectious diseases of ships according to claim 1, characterized in that: and a pressure compensator is additionally arranged at the air pipe between the first electromagnetic three-way air valve and the second electromagnetic three-way air valve.
7. The air supply system for preventing and controlling infectious diseases of ships according to claim 1, characterized in that: the seawater source heat pump comprises a compressor, a condenser, an electronic expansion valve and an evaporator; when the main diesel engine of the ship runs, high-temperature waste gas generated by running flows into the waste gas heat exchanger to heat the regenerated air; when the main diesel engine of the ship does not operate, the heat energy in seawater is absorbed by an evaporator in the seawater source heat pump, the heat energy is compressed into high-temperature high-pressure heat pump working medium by a compressor in the seawater source heat pump, and the regenerated air is heated in a condenser by the high-temperature high-pressure heat pump working medium.
8. An air supply method for preventing and controlling infectious diseases of ships, based on the air supply system for preventing and controlling infectious diseases of ships of any one of claims 1 to 7, characterized in that: the method comprises the following steps: the electric air valve is opened when the prevention and control are needed and is closed when the prevention and control are not needed; the first electromagnetic three-way air valve is opened at the second end and the third end when in need of prevention and control and closed at the first end, and is opened at the first end and the third end when in no need of prevention and control and closed at the second end.
9. The air supply method for preventing and controlling infectious diseases in ships according to claim 8, wherein: the first, second and third ultraviolet sterilizers are turned on when the prevention and control are required and turned off when the prevention and control are not required.
10. The air supply method for preventing and controlling infectious diseases in ships according to claim 8, wherein: the ultraviolet germicidal lamp in the air duct is turned on when the prevention and the control are needed and is turned off when the prevention and the control are not needed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210262660.1A CN114852309B (en) | 2022-03-17 | 2022-03-17 | Ship infectious disease prevention and control air supply system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210262660.1A CN114852309B (en) | 2022-03-17 | 2022-03-17 | Ship infectious disease prevention and control air supply system and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114852309A true CN114852309A (en) | 2022-08-05 |
| CN114852309B CN114852309B (en) | 2023-09-12 |
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| CN202210262660.1A Active CN114852309B (en) | 2022-03-17 | 2022-03-17 | Ship infectious disease prevention and control air supply system and method |
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|---|---|
| CN114852309B (en) | 2023-09-12 |
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