CN111976943B - Simple negative pressure disinfection device for ship cabin air conditioning system - Google Patents

Abstract

The invention discloses a simple negative pressure disinfection device for a ship cabin air conditioning system, which is provided with an air inlet disinfection chamber and a return air disinfection chamber; the air inlet disinfection chamber is divided into a first fan chamber and a first filter chamber, and a first The fan chamber is provided with a first air inlet, the first fan chamber is provided with a first fan, and the first filter chamber is provided with a first air outlet; the return air disinfection chamber is divided into a second fan chamber and a second filter chamber, and the second fan The chamber is provided with a second air inlet, the second fan chamber is provided with a second fan, and the second filter chamber is provided with a second air outlet; both the air inlet disinfection chamber and the return air disinfection chamber are provided with disinfection devices; The passing air volume is 0.3 to 0.7 times that of the return air disinfection chamber. The device is equipped with four air inlets and outlets, and the ventilation hose can be connected to the air inlet and return air of the air conditioner to sterilize the air in and out. At the same time, the air entering the room is less than the air going out, forming a simple negative pressure environment. Exhaust secondary harmful substances such as ozone, etc., to achieve real human-machine coexistence.

Description

A simple negative pressure disinfection device for ship cabin air conditioning system

technical field

The invention relates to the technical field of air purification equipment, in particular to a simple negative pressure disinfection device for a ship cabin air conditioning system.

Background technique

Nowadays, many ships and ships are cooled (heated) by central air conditioning, which leads to the possibility of the virus spreading through central air conditioning when there is a sudden respiratory infection on board. At the same time, once patients appear in the cabin, there is no negative pressure ward. , it will also cause the leakage of the virus, so it is very important to develop a simple negative pressure disinfection device for the air conditioning system of the ship cabin.

SUMMARY OF THE INVENTION

Aiming at the problem of the possibility of virus transmission through the central air conditioner in the cabin air conditioning system in the prior art and the inability to prevent its leakage, the present invention provides a safe and effective simple negative pressure disinfection device for the cabin air conditioning system of ships, which can be used for transportation Such as cabin air conditioning systems of ships, ships, trains, planes, etc., to avoid the spread of viruses through central air conditioning and the leakage of viruses.

The simple negative pressure disinfection device for the air conditioning system of the ship cabin of the present invention is provided with an air inlet disinfection chamber and a return air disinfection chamber. The partition is sealed and separated;

The air inlet disinfection chamber is divided into a first fan chamber and a first filter chamber, the first fan chamber is provided with a first air inlet, the first fan chamber is provided with a first fan, and the first fan outlet into the first filter chamber, and the first filter chamber is provided with a first air outlet;

The return air disinfection chamber is divided into a second fan chamber and a second filter chamber, the second fan chamber is provided with a second air inlet, the second fan chamber is provided with a second fan, and the second fan outlet into the second filter chamber, and the second filter chamber is provided with a second air outlet;

The air inlet sterilization chamber and the return air sterilization chamber are both provided with sterilization devices;

The passing air volume of the air inlet disinfection chamber is 0.3 to 0.7 times, preferably 0.4 to 0.6 times, more preferably 0.5 times that of the return air disinfection chamber.

Preferably, the volume of the air inlet disinfection chamber is 0.3 to 0.7 times, preferably 0.4 to 0.6 times, more preferably 0.5 times that of the return air disinfection chamber.

Preferably, between the first fan chamber and the first filter chamber, and between the second fan chamber and the second filter chamber are separated by a fan fixing plate, the first fan and the The second fans are all fixed by the fan fixing plate.

Preferably, the rated power of the first fan is 0.3-0.7 times, preferably 0.4-0.6 times, more preferably 0.5 times that of the second fan.

Preferably, the sterilizing device includes one or two or more of sterilizing devices such as an ultraviolet lamp, a filter screen assembly, a photocatalytic module, and a low-temperature plasma module.

Preferably, the ultraviolet lamp is arranged in the first fan chamber, the first filter chamber, the second fan chamber and the second filter chamber.

Preferably, the ultraviolet lamp is an ozone-free ultraviolet lamp with a wavelength of 254 nm, which generates very little ozone; combined with the uniquely designed disinfection air cavity structure and aerodynamic technology, the air can be disinfected for a longer time, and at the same time Ozone generation is avoided.

Preferably, the filter screen assembly is selected from but not limited to one or a combination of two or more of activated carbon filter screen, HEPA filter screen (high-efficiency exhaust gas filter screen) and photocatalytic filter screen.

The photocatalytic filter screen can also be regarded as a photocatalytic module. Preferably, the photocatalytic filter screen has an ultra-fine nano-rod-like structure. The size of the ultra-fine nanorod-like structure is preferably 8nm in diameter and 15-100nm in length. The ultra-fine nanorod-like structure can greatly improve the rate of photogenerated electrons, greatly enhance the ability of oxidative decomposition, kill bacteria, and can be used for up to 5-10 years without replacement .

Preferably, the filter screen assembly can be divided into multiple groups for spaced blocking arrangement to realize multi-stage filtration. Each group of filter screen components can be designed with a variety of filter screen stacking methods, which can cooperate in filtration and sterilization. The arrangement order of the filter components in each group and the stacking order of the filters in each group are also very critical. A reasonable arrangement can greatly improve the efficiency of filtration and sterilization.

Preferably, in the first filter chamber, the partition from the first filter chamber and the first fan chamber (in some embodiments, the partition can be used as a fan fixing plate) to the first air outlet between the second filter chamber and the partition from the second filter chamber and the second fan chamber (in some embodiments, the partition can be used as a fan fixing plate) to the second air outlet In between, the filter screen assembly is divided into three groups of spaced blocking arrangements, the first group includes the stacked activated carbon filter screen, the HEPA filter screen and the photocatalytic filter screen, the second group includes the stacked photocatalytic filter screen and the activated carbon filter screen, The third group consists of stacked activated carbon filters and HEPA filters.

Preferably, along the air flow,

The stacking sequence of the first group of filter screen components is: activated carbon filter screen, HEPA filter screen, photocatalytic filter screen;

The stacking sequence of the second group of filter components is: photocatalytic filter, activated carbon filter;

The stacking sequence of the third group of filter components is: activated carbon filter, HEPA filter.

Further, ultraviolet lamps are provided in the chambers on both sides of the first group of filter screen assemblies. The photocatalytic filter can play a catalytic role, and combined with the irradiation of the ultraviolet lamp, the sterilization efficiency can be greatly improved.

Preferably, the low temperature plasma module is arranged in the first filter chamber and the second filter chamber. The low-temperature plasma module adopts low-temperature and low-spark energy insulator discharge technology, which produces high purity ozone and very little nitrogen oxides.

Further, the low temperature plasma module is arranged in the first chamber separated by the filter screen assembly.

Preferably, an air detector is provided in the air inlet sterilization chamber and/or the return air sterilization chamber.

The air detector is selected from, but is not limited to, one or two or more of detectors such as PM2.5 detector, VOCs detector, formaldehyde, and ozone detector.

Preferably, the second fan chamber is provided with an air detector.

Preferably, the first air outlet and the second air outlet are provided with ozone detectors.

The positive progressive effect of the present invention is:

1. The simple negative pressure disinfection device for the air conditioning system of the ship cabin of the present invention is provided with an air inlet disinfection chamber and a return air disinfection chamber, wherein the first air inlet of the air inlet disinfection chamber can be directly or through an external pipeline to introduce air conditioning refrigeration or system. The hot air is sent into the cabin through the first air outlet after being sterilized and filtered by the air inlet disinfection chamber; while the second air inlet of the return air disinfection chamber is used to introduce the air in the cabin. The second air outlet is discharged from the cabin directly or through an external pipe; therefore, both the air introduced into the cabin and the air discharged from the cabin are sterilized and filtered to prevent the virus from spreading in the central air conditioning system.

2. In the present invention, the volume of the air inlet disinfection chamber and the passing air volume are smaller than those of the return air disinfection chamber, and the rated power of the first fan is also smaller than that of the second fan, this design can form a negative pressure in the cabin, which can further Avoid virus leakage.

3. In the present invention, the disinfection device can effectively remove viruses and bacteria in the air, and the low-temperature plasma module adopts the low-temperature and low-spark energy insulator discharge technology, which produces high purity ozone and very little nitrogen oxides; the wavelength is 254nm Ultraviolet lamps produce very little ozone; combined with the uniquely designed disinfection air cavity structure, aerodynamic technology and ozone adsorption technology, the air can be disinfected for a longer time, while avoiding the final discharge of ozone; the photocatalytic filter screen passes The original ultra-fine nano-rod-like structure greatly improves the rate of photogenerated electrons, greatly enhances the oxidative decomposition ability, and kills bacteria. It can be used for up to 5-10 years without replacement.

In a word, the device of the present invention is provided with two chambers and four air inlets and outlets, and the ventilation hose can be connected to the air inlet and the return air outlet of the air conditioner to sterilize the air in and out. The negative pressure environment, at the same time, will not discharge secondary harmful substances such as ozone, etc., to achieve the real coexistence of human and machine.

Description of drawings

Fig. 1 is the schematic diagram of the simple negative pressure disinfection device of the present invention for the cabin air conditioning system of ships;

FIG. 2 is a schematic diagram of the installation of a simple negative pressure disinfection device for a ship cabin air conditioning system according to the present invention.

Reference number:

The first fan chamber 11, the first filter chamber 12, the first fan 13, the first air inlet 14, the first air outlet 15, the second fan chamber 21, the second filter chamber 22, the second fan 23, the second air inlet 24. The second air outlet 25, the fan fixing plate 31, the ultraviolet lamp 41, the low temperature plasma module 42, the activated carbon filter 43, the HEPA filter 44, the photocatalytic filter 45, and the air detector 51.

specific implementation

Fig. 1 shows a simple negative pressure disinfection device for a ship cabin air conditioning system according to a preferred embodiment of the present invention, which is a box body, and is provided with an air inlet disinfection chamber and a return air disinfection chamber with similar structures side by side. The baffles are sealed off.

The air inlet sterilization chamber and the return air sterilization chamber are respectively separated into the first fan chamber 11 and the first filter chamber 12 , the second fan chamber 21 and the second filter chamber 22 by the fan fixing plate 31 . The first fan chamber 11 and the second fan chamber 21 are respectively provided with a first air inlet 14 and a second air inlet 24 on both sides, and the first fan chamber 11 and the second fan chamber 21 are respectively provided with a first fan 13 and a second fan The blower 23 , the air outlets of the first blower 13 and the second blower 23 pass through the blower fixing plate 31 and pass into the first filter room 12 and the second filter room 22 respectively. The ends (upper ends in the figure) of the first filter chamber 12 and the second filter chamber 22 are respectively provided with a first air outlet 15 and a second air outlet 25 .

Preferably, the passing air volume of the air inlet disinfection chamber is 0.3 to 0.7 times, preferably 0.4 to 0.6 times, more preferably 0.5 times that of the return air disinfection chamber.

Preferably, the volume of the air inlet disinfection chamber is 0.3 to 0.7 times, preferably 0.4 to 0.6 times, and more preferably 0.5 times that of the return air disinfection chamber.

Preferably, the rated power of the first fan 13 is 0.3-0.7 times, preferably 0.4-0.6 times, more preferably 0.5 times that of the second fan 23 .

Both the air inlet disinfection chamber and the return air disinfection chamber are provided with disinfection devices. The disinfection device includes an ultraviolet lamp 41 , a filter screen assembly, and a low-temperature plasma module 42 .

Preferably, ultraviolet lamps 41 are provided in the first fan chamber 11 , the first filter chamber 12 , the second fan chamber 21 and the second filter chamber 22 . The UV lamp is preferably an ozone-free UV lamp with a wavelength of 254nm, which produces very little ozone; combined with the uniquely designed disinfection air cavity structure and aerodynamic technology, the air can be disinfected for a longer time, while avoiding the discharge of ozone.

The filter screen assembly is arranged in the first filter chamber and the second filter chamber. The filter screen assembly is selected from but not limited to one or a combination of two or more of the activated carbon filter screen 43 , the HEPA filter screen 44 and the photocatalytic filter screen 45 .

Preferably, from the fan fixing plate 31 to the first air outlet 15 in the first filter chamber 12, and from the fan fixing plate 31 to the second air outlet 25 in the second filter chamber 22, the filter screen assembly is divided into: Three sets of spaced blocking arrangements, the first set includes the laminated activated carbon filter 43, the HEPA filter 44 and the photocatalytic filter 45, the second set includes the laminated photocatalytic filter 45 and the activated carbon filter 43, and the third set includes the laminated Activated carbon filter 43 and HEPA filter 44. Further, the ultraviolet lamps 41 in the first filter chamber 12 and the second filter chamber 22 are arranged in the chambers on both sides of the first group of filter screen assemblies.

Preferably, the photocatalytic filter screen 45 can also be regarded as a photocatalytic module, which has an ultra-fine nanorod-like structure. The size of the ultra-fine nanorod-like structure is preferably 8nm in diameter and 15-100nm in length. The ultra-fine nanorod-like structure can greatly improve the rate of photogenerated electrons, greatly enhance the ability of oxidative decomposition, kill bacteria, and can be used for up to 5-10 years without replacement .

Preferably, the low-temperature plasma module 42 is arranged in the first chamber of the first filter chamber 12 and the second filter chamber 22, and can be fixed on the middle partition plate, and simultaneously acts on the chambers on both sides. The low-temperature plasma module 42 adopts the low-temperature and low-spark energy insulator discharge technology, which produces high purity ozone and very little nitrogen oxides. Finally, the ozone will be absorbed by the filter screen assembly before the sterilized air is discharged.

Preferably, the second fan chamber 21 is provided with an air detector 51 . The air detector is selected from but not limited to one or two or more of PM2.5 detectors, VOCs detectors, and formaldehyde detectors. The air detector 51 is used to monitor the air quality of the cabin entering the device, and to monitor the environment in the cabin in real time.

The positive progressive effect of the present invention is:

1. The installation of the simple negative pressure disinfection device for the air conditioning system of the ship cabin of the present invention is shown in Figure 2. The first air inlet 14 of the air inlet disinfection chamber can be directly or through an external pipeline to introduce the air conditioner after cooling or heating. The air is sent into the cabin through the first air outlet 15 after being sterilized and filtered in the air inlet sterilization chamber; while the second air inlet 24 of the return air sterilization chamber is used to introduce the air in the cabin, after being sterilized and filtered by the return air sterilization chamber, it is sent to the cabin by the second air inlet 24. The air outlet 25 is directly discharged from the cabin or through an external pipe; therefore, whether the air introduced into the cabin or the air discharged from the cabin is sterilized and filtered, the virus can be prevented from spreading in the central air conditioning system.

2. In the present invention, the volume and passing air volume of the air inlet disinfection chamber are smaller than those of the return air disinfection chamber, and the rated power of the first fan 13 is also smaller than that of the second fan 23. This design can form a negative pressure in the cabin, which can further Avoid virus leakage.

3. In the present invention, the disinfection device can effectively remove viruses and bacteria in the air. The low-temperature plasma module adopts the low-temperature and low-spark energy insulator discharge technology, which produces high purity ozone and very little nitrogen oxides; the ultraviolet light with a wavelength of 254nm is used. The lamp produces very little ozone; combined with the uniquely designed sterilization air cavity structure and aerodynamic technology, the air can be sterilized for a longer time, while avoiding the generation of ozone; the photocatalytic filter screen passes through the original ultra-fine nano-rod structure. , Greatly improve the rate of photogenerated electrons, greatly enhance the ability of oxidative decomposition, kill bacteria, and can be used for up to 5-10 years without replacement.

In a word, the device of the present invention is provided with two chambers and four air inlets and outlets, and the ventilation hose can be connected to the air inlet and the return air outlet of the air conditioner to sterilize the air in and out. The negative pressure environment, at the same time, will not discharge secondary harmful substances such as ozone, etc., to achieve the real coexistence of human and machine.

Claims (7)

1. A simple negative pressure disinfection device for an air conditioning system of a ship cabin is characterized by being provided with an air inlet disinfection cavity and a return air disinfection cavity, wherein the air inlet disinfection cavity and the return air disinfection cavity are arranged side by side in the same direction to form a box body, and the middle of the box body is sealed and separated by a partition plate;

the air inlet disinfection cavity is divided into a first fan chamber and a first filter chamber, the first fan chamber is provided with a first air inlet, a first fan is arranged in the first fan chamber, an outlet of the first fan is communicated with the first filter chamber, and the first filter chamber is provided with a first air outlet;

the return air disinfection cavity is divided into a second fan chamber and a second filter chamber, the second fan chamber is provided with a second air inlet, a second fan is arranged in the second fan chamber, the outlet of the second fan is communicated with the second filter chamber, and the second filter chamber is provided with a second air outlet;

the air inlet disinfection cavity and the air return disinfection cavity are respectively provided with a disinfection device;

the air passing quantity of the air inlet disinfection cavity is 0.3-0.7 times that of the air return disinfection cavity;

ultraviolet lamps are arranged in the chambers on the two sides of the first group of filter screen assemblies, and the ultraviolet lamps are non-ozone ultraviolet lamps with the wavelength of 254 nm; the first fan chamber and the first filter chamber and the second fan chamber and the second filter chamber are separated by a fan fixing plate, and the first fan and the second fan are fixed by the fan fixing plate;

The disinfection device comprises one or more than two of an ultraviolet lamp, a filter screen component, a photocatalysis module and a low-temperature plasma module;

the low-temperature plasma module is arranged in the first filter chamber and the second filter chamber.

2. The simple negative pressure sterilization device for ship cabin air conditioning systems of claim 1, wherein the ultraviolet lamp is disposed in the first fan chamber, the first filter chamber, the second fan chamber, and the second filter chamber.

3. The simple negative pressure sterilization device for ship cabin air conditioning system of claim 1, wherein the filter screen assembly is selected from one or a combination of two or more of activated carbon filter screen, HEPA filter screen and photocatalytic filter screen.

4. The simple negative pressure sterilization device for ship cabin air conditioning systems of claim 3, wherein the filter screen assembly is divided into three groups of interval blocking arrangements in the first filter chamber from the partition of the first filter chamber and the first fan chamber to the first air outlet and in the second filter chamber from the partition of the second filter chamber and the second fan chamber to the second air outlet, the first group comprises stacked activated carbon filter screens, HEPA filter screens and photocatalytic filter screens, the second group comprises stacked photocatalytic filter screens and activated carbon filter screens, and the third group comprises stacked activated carbon filter screens and HEPA filter screens.

5. The simple negative pressure sterilization device for the ship cabin air conditioning system of claim 3, wherein the photocatalytic filter screen has an ultra-fine nano rod-like structure.

6. The simplified negative pressure sterilization apparatus for ship cabin air conditioning system as recited in claim 1, wherein said low temperature plasma module is disposed in a first filter chamber and said second filter chamber.

7. The simple negative pressure sterilization device for the ship cabin air conditioning system of claim 1, wherein an air detector is arranged in the intake air sterilization chamber and/or the return air sterilization chamber.

Images