Lighting, ventilating and sterilizing integrated system for medical building

Abstract

The utility model relates to an illumination, ventilation and sterilization integrated system for a medical building, which belongs to the technical field of air purification, solves the problems existing in the current medical building purification and sterilization system, and comprises a plurality of air pipes, an input light guide pipe is arranged in each air pipe, and a fan is arranged in a gap between each input light guide pipe and the corresponding air pipe. A lighting cover is arranged at the outdoor side end of the input light guide pipe, the input light guide pipe penetrates out of the air pipe and then is connected with the input end of a light splitting device, and the output end of the light splitting device is connected with an ultraviolet output light guide pipe and an illumination light output light guide pipe which are arranged in parallel. According to the utility model, the system integrates the functions of illumination, ventilation and sterilization, so that the operation cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of air purification, and particularly relates to an integrated system for lighting, ventilation and sterilization for medical buildings. Background Art

[0002] The statements herein only provide background art related to the utility model, and do not necessarily constitute prior art.

[0003] In public places such as hospitals, the flow of people is intensive and the air quality is poor. Some groups may also bring pathogenic bacteria and viruses. At the same time, public places need long-term lighting. Currently, there is a purification, sterilization and virus elimination system for medical buildings, including an air-conditioning unit. Inside the cabin assembly of the air-conditioning unit, functional units such as a fan unit, a filtration unit, a temperature control unit and a humidity control unit are successively arranged. The above purification, sterilization and virus elimination system realizes the ventilation and sterilization functions of medical buildings, and can be quickly repaired when a failure occurs, shortening the maintenance time and reducing the possibility of personnel infection caused by bacterial growth. However, the above purification, sterilization and virus elimination system does not have a lighting function. When using the above system, medical buildings need an additional lighting system, and the lighting system is powered by electricity. Long-term use of the lighting system consumes a large amount of electricity, increasing the operating cost. Summary of the Utility Model

[0004] The purpose of the utility model is to overcome the above-mentioned deficiencies of the prior art, and provide an integrated system for lighting, ventilation and sterilization for medical buildings, which integrates lighting, ventilation and sterilization functions, reduces power consumption and operating costs.

[0005] To achieve the above purpose, the utility model adopts the following technical solutions:

[0006] An embodiment of the utility model provides an integrated system for lighting, ventilation and sterilization for medical buildings, including a plurality of air ducts. An input light guide tube is arranged inside the air duct. A fan is arranged in the gap between the input light guide tube and the air duct. A daylighting cover is arranged at the outdoor side end of the input light guide tube. After the input light guide tube passes through the air duct, it is connected to the input end of a light splitting device. The output end of the light splitting device is connected to an ultraviolet output light guide tube and a lighting light output light guide tube arranged in parallel. Among them, the ultraviolet output light guide tube extends into the air duct and its outlet extends to the indoor side end of the air duct.

[0007] Optionally, a screen is arranged at the outdoor side end of the gap between the input light guide tube and the air duct.

[0008] Optionally, an air filter element is arranged between the inner tube surface of the indoor side end of the air duct and the outer tube surface of the ultraviolet output light guide tube.

[0009] Optionally, a plurality of fans are arranged, and the plurality of fans are evenly distributed at equal intervals in the circumferential direction in the gap between the input light guide tube and the air duct;

[0010] Or,

[0011] The blower uses a hollow shaft blower, and the input light guide tube passes through the hollow shaft at the center of the hollow shaft blower.

[0012] Optionally, the pipe section of the input light guide tube located in the air duct is coaxially arranged with the air duct.

[0013] Optionally, a lighting supplementary light element is provided on one side of the outlet of the lighting light output light guide tube, and the lighting supplementary light element is connected to the power supply.

[0014] Optionally, a first diffuser is provided on the outer periphery of the lighting supplementary light element and the outlet of the lighting light output light guide tube.

[0015] Optionally, a UV supplementary light element is provided on one side of the outlet of the UV output light guide tube, and the UV supplementary light element is connected to the power supply.

[0016] Optionally, a second diffuser is provided on the outer periphery of the UV supplementary light element and the outlet of the UV output light guide tube.

[0017] Optionally, the power supply uses a storage battery, and the storage battery is connected to a photovoltaic system for being arranged on the roof or wall of a building.

[0018] The beneficial effects of the above-mentioned utility model are as follows:

[0019] 1. In the integrated lighting, ventilation and sterilization system for medical buildings of the present utility model, an input light guide tube is provided in the air duct, a blower is provided in the gap between the air duct and the input light guide tube, a daylighting cover is provided at the inlet of the input light guide tube, and its outlet is connected to a light splitting device. The light splitting device can split the collected light into lighting light and ultraviolet light. The ultraviolet light reaches the indoor side end of the air duct through the UV output light guide tube to sterilize the air flowing through the indoor side end of the air duct. At the same time, the lighting light can be output through the lighting light output light guide tube to provide lighting. The blower can be used for indoor ventilation of the medical building. Therefore, the system integrates lighting, ventilation and sterilization functions, can utilize external light to achieve indoor lighting and sterilization of indoor circulating air, and saves the use of electric energy and reduces the operation cost compared with additionally setting a lighting system and a UV sterilization system relying on electricity.

[0020] 2. In the integrated lighting, ventilation and sterilization system for medical buildings of the present utility model, the ultraviolet light in the collected external light is separated by the light splitting device, avoiding the ultraviolet light from being irradiated out through the lighting light output light guide tube and avoiding harm to indoor personnel.

[0021] 3. The lighting, ventilation, and sterilization integrated system for medical buildings of the present utility model is provided with lighting supplementary elements and ultraviolet supplementary elements, and can work independently using a power supply, so that lighting, ventilation, and sterilization work can still be carried out normally even when the external environmental light conditions are poor. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The specification drawings forming a part of this application are used to provide a further understanding of this application. The schematic embodiments of this application and their descriptions are used to explain this application and do not constitute a limitation to this application.

[0023] Figure 1 is a schematic diagram of the overall structure of Embodiment 1 of the present utility model;

[0024] Figure 2 is a schematic diagram of the control principle of Embodiment 1 of the present utility model;

[0025] Among them, 1. daylighting cover, 2. photovoltaic system, 3. storage battery, 4. air duct, 5. LED supplementary lamp, 6. first diffuser, 7. second diffuser, 8. indoor air outlet, 9. ultraviolet supplementary lamp, 10. air filter element, 11. optical splitter, 12. input light guide tube, 13. inlet air fan, 14. outdoor air outlet, 15. steel screen, 16. light intensity sensor, 17. outlet air fan, 18. control system, 19. ultraviolet output light guide tube, 20. lighting light output light guide tube. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] Embodiment 1

[0027] This embodiment provides a lighting, ventilation, and sterilization integrated system for medical buildings, as Figure 1 shown, including a plurality of air ducts 4. In this embodiment, two air ducts 4 are provided for each room in the medical building. One of the air ducts 4 serves as an inlet air duct, and the other air duct 4 serves as an outlet air duct. One end of the air duct 4 extends to the outdoor air outlet 14, and the other end extends to the indoor air outlet 8 of the medical building. In this embodiment, the end of the air duct 4 located at the outdoor air outlet 14 is defined as the outdoor side end, and the end located at the indoor air outlet 8 is defined as the indoor side end.

[0028] Input light guide tubes 12 are provided in both of the two air ducts 4. The inlet of the input light guide tube 12 is used to be arranged on the outdoor side of the building. A daylighting cover 1 is provided at the inlet of the input light guide tube 12 through a flared structure. The daylighting cover 1 is used to collect the light of the external environment and introduce it into the input light guide tube 12. The input light guide tube 12 transmits the light through optical fibers.

[0029] Since a flared structure is provided at the inlet of the input light guide tube 12, correspondingly, the outdoor side end of the air duct 4 also adopts a flared structure matching the inlet of the input light guide tube 12.

[0030] The input light guide tube 12 extends out of the air duct 4 and is connected to the input end of the light splitting device.

[0031] In this embodiment, the input light guide tube 12 is divided into two pipe sections, namely a first pipe section and a second pipe section. The first pipe section is located inside the air duct 4 and is coaxially arranged with the air duct 4. The second pipe section is located outside the air duct 4 and the outlet of the second pipe section is connected to the input end of the light splitting device.

[0032] There is an annular gap between the first pipe section of the input light guide tube 12 and the air duct 4, and a fan is arranged in the gap. The fan in the air inlet duct serves as the air inlet fan 13, and the fan in the air outlet duct serves as the air outlet fan 17.

[0033] In one implementation, multiple fans are arranged in the gap, and the multiple fans are equally spaced along the circumferential direction of the first pipe section of the input light guide tube 12 and the air duct 4. Preferably, four fans are arranged, and the outer shell of the fan is fixedly connected to the input light guide tube 12 and the air duct 4.

[0034] In another implementation, one fan is arranged. The fan adopts an existing hollow shaft fan, which includes a hollow shaft motor. The input light guide tube 12 passes through the channel in the center of the hollow shaft motor and is fixedly connected to the hollow shaft motor. The output shaft of the hollow shaft motor is connected with multiple blades.

[0035] The air inlet fan 13 in the air inlet duct can drive the external air to enter the room through the air inlet duct, and the air outlet fan 17 in the air outlet duct can drive the indoor air to be discharged to the external environment through the air outlet duct to realize the ventilation and air change of the building interior.

[0036] A screen is provided at the end of the gap between the air duct 4 and the input light guide tube 12 on the outdoor side. Preferably, the screen adopts a steel screen 15, which is used to filter the incoming air or the outgoing air.

[0037] The light splitting device adopts a light splitter 11. The light splitter 11 can use existing equipment and will not be described in detail here. The light splitter 11 can separate the ultraviolet rays from the other rays in the light input by the input light guide tube 12 using the principle of a triangular prism and output them separately. Its working principle can adopt existing technology and will not be described in detail here.

[0038] The output end of the light splitting device is connected to the ultraviolet output light guide tube 19 and the illumination light output light guide tube 20 arranged in parallel.

[0039] The ultraviolet output light guide tube 19 includes a first main pipe, and the first main pipe is connected to multiple first branch pipes. The outlets of the first branch pipes extend into the corresponding indoor air outlets 8.

[0040] The lighting light output light guide tube 20 includes a second main pipe, the second main pipe is connected to a plurality of second branch pipes, and the outlets of the second branch pipes extend to the pre-set light source positions in the corresponding rooms.

[0041] In this embodiment, since one air inlet pipe and one air outlet pipe are provided, two indoor air vents 8 are provided, so two first branch pipes are provided, and the first main pipe extends into the two air pipes 4 so that the first branch pipes are located inside the corresponding air pipes 4.

[0042] In this embodiment, the first branch pipe is coaxially arranged with the air pipe 4 on its outer periphery.

[0043] An air filter element 10 is further provided between the outlet of the first branch pipe and the air pipe 4. The air filter element 10 can adopt an existing air filter element and will not be described in detail here, and is used to filter the air flowing into or out of the air pipe 4.

[0044] The outlet of the first branch pipe is located inside the indoor air vent 8, which can sterilize the air flowing into or out of it. At the same time, the ultraviolet rays emitted by the first branch pipe will not cause harm to the indoor personnel due to the limitation of the indoor air vent 8.

[0045] In this embodiment, in order to avoid the situation that the entire system cannot meet the normal sterilization and lighting functions under poor outdoor lighting conditions, a UV supplementary lighting element is provided on one side of the outlet of the first branch pipe. The UV supplementary lighting element can adopt an existing UV supplementary lighting lamp 9. The UV supplementary lighting lamp 9 is fixed inside the indoor air vent 8, and the UV supplementary lighting lamp 9 is connected to the power supply through a power supply line and is powered by the power supply.

[0046] Further, a second diffuser 7 is provided outside the outlet of the UV supplementary lighting lamp 9 and the first branch pipe. The second diffuser 7 is fixed inside the indoor air vent 8. The ultraviolet rays emitted by the first branch pipe and the UV supplementary lighting lamp 9 can be emitted through the second diffuser 7. The second diffuser 7 can adopt existing equipment and will not be described in detail here.

[0047] The outlet of the second branch pipe is used to emit lighting light to illuminate the room. A lighting supplementary lighting element is provided on one side of the outlet of the second branch pipe. In this embodiment, the lighting supplementary lighting element adopts an LED supplementary lighting lamp 5. The LED supplementary lighting lamp 5 is used to be installed on the indoor wall or ceiling. A first diffuser 6 is provided outside the outlet of the LED supplementary lighting lamp 5 and the second branch pipe. The light emitted by the LED supplementary lighting lamp 5 and the second branch pipe can irradiate the room through the first diffuser 6.

[0048] The LED supplementary lighting lamp 5 is connected to the power supply through a power supply line and is powered by the power supply.

[0049] In this embodiment, the power supply is a storage battery 3. The storage battery 3 is connected to the ultraviolet supplementary lamp 9 and the LED supplementary lamp 5 through a power supply line to supply power to the ultraviolet supplementary lamp 9 and the LED supplementary lamp 5.

[0050] The storage battery 3 is also connected to a photovoltaic system 2 configured to be installed on a building wall or roof. The photovoltaic system 2 can convert solar energy into electrical energy to charge the storage battery 3.

[0051] The photovoltaic system 2 can adopt existing technologies, including solar panels. The solar panels are used to be fixed on the building wall and / or ceiling and / or at the inlet of the input light guide tube 12 through brackets. In this embodiment, when solar panels are arranged at the inlet of the input light guide tube 12, a plurality of solar panels are circumferentially arranged on the outer side of the flared structure at the inlet of the input light guide tube 12, increasing the area of the solar panels.

[0052] By arranging the photovoltaic system 2, the LED supplementary lamp 5 and the ultraviolet supplementary lamp 9 do not need to use municipal power, saving the electricity cost.

[0053] In this embodiment, the air duct 4, the input light guide tube 12, the ultraviolet output light guide tube 19, and the illumination light output light guide tube 20 can be fixed at the set positions in the medical building through existing pipe brackets. Those skilled in the art can select their fixing positions according to actual needs and will not be described in detail herein.

[0054] The integrated lighting, ventilation, and sterilization system for medical buildings further includes a light intensity sensor 16. The light intensity sensor 16 is used to be installed at set positions on the indoor wall or ceiling and at set positions inside the indoor air outlet 8. Those skilled in the art can select its installation position according to actual needs and will not be described in detail herein.

[0055] As Figure 2 shown, the light intensity sensor 16 is connected to the control system 18 and can transmit the collected light intensity information to the control system 18. The control system 18 is connected to the ultraviolet supplementary lamp 9 and the LED supplementary lamp 5 and can control the operation of the ultraviolet supplementary lamp 9 and the LED supplementary lamp 5.

[0056] When the light intensity sensor 16 installed at the set position on the indoor ceiling or wall detects that the indoor light intensity is less than the set threshold, it sends a signal to the control system 18. The control system 18 controls the LED supplementary lamp 5 to operate to perform light compensation for indoor lighting. When the light intensity sensor 16 inside the indoor air outlet 8 detects that the ultraviolet light intensity inside the indoor air outlet 8 is less than the set threshold, the control system controls the ultraviolet supplementary lamp 9 to operate to perform ultraviolet compensation to ensure the sterilization effect on the air.

[0057] The control system 18 is also connected to the fans in the two air ducts 4 to control the operation of the fans, so as to realize the switching of the indoor ventilation mode.

[0058] In this embodiment, it further includes a manual operation console, which is used to be set in the control room of the building. The manual operation console can send instructions to the control system to control the operation of the fans, the LED supplementary light 5 and the ultraviolet supplementary light 9 through manual operation.

[0059] The working method of the integrated lighting, ventilation and sterilization system for medical buildings in this embodiment is as follows:

[0060] The control system 18 controls the operation of the fans in the two air ducts 4. The rotation directions of the two fans are opposite. Among them, the intake fan 13 in the intake air duct introduces external air into the room, and the exhaust fan 17 in the exhaust air duct extracts the indoor air to the outside, realizing the ventilation and air change in the room.

[0061] In this embodiment, the control system 18 controls the rotation speeds of the two fans to realize the switching of the indoor ventilation mode. In this embodiment, there are three ventilation modes, namely the balance mode, the positive pressure mode and the negative pressure mode.

[0062] When the balance mode works, the control system 18 controls the ventilation volumes of the two fans to be the same, and the indoor pressure and the outdoor pressure of the building are equal.

[0063] In the positive pressure mode, the control system 18 controls the ventilation volume of the intake fan 13 in the intake air duct to be greater than the ventilation volume of the exhaust fan 17 in the exhaust air duct. At this time, the indoor pressure of the building is greater than the outdoor pressure.

[0064] Negative pressure mode: The control system 18 controls the ventilation volume of the intake fan 13 in the intake air duct to be less than the ventilation volume of the exhaust fan 17 in the exhaust air duct, and the indoor pressure of the building is less than the outdoor pressure.

[0065] In this embodiment, the ventilation mode can be switched by using the control system 18 according to actual needs, so that the system meets the requirements of various medical places.

[0066] The daylighting cover 1 collects the light of the external environment, and uses the input light guide tube 12 to send the collected light into the beam splitter 11.

[0067] The beam splitter 11 separates the ultraviolet rays in the light from the rest of the light. Among them, the ultraviolet rays enter the ultraviolet output light guide tube 19 and are sent into the indoor air outlet 8 by the ultraviolet output light guide tube 19 to irradiate the air flowing into or out of the air duct 4 for sterilization.

[0068] The rest of the light enters the lighting light output light guide tube 20, and then is emitted from the outlet of the lighting light output light guide tube 20 to provide lighting for the room.

[0069] When the light intensity sensor 16 installed at the set position of the indoor ceiling or wall detects that the indoor light intensity is less than the set threshold, it sends a signal to the control system 18. The control system 18 controls the LED supplementary light 5 to work for light compensation for indoor lighting. When the light intensity sensor 16 in the air outlet detects that the ultraviolet light intensity in the indoor air outlet 8 is less than the set threshold, the control system 18 controls the ultraviolet supplementary light 9 to work for ultraviolet compensation to ensure the bactericidal effect on the air.

[0070] With the system of this embodiment, the light splitting device can split the collected light into illumination light and ultraviolet light. The ultraviolet light reaches the indoor side end of the air duct 4 through the ultraviolet output light guide tube 19 to sterilize the air flowing through the indoor side end of the air duct 4. At the same time, the illumination light can be output through the illumination light output light guide tube 20 to provide illumination. The indoor ventilation of the medical building can be carried out through the fan. Therefore, the system integrates the functions of lighting, ventilation and sterilization, can use external light to achieve indoor lighting and sterilization of indoor circulating air, maximizes the use of solar energy resources, and saves the use of electric energy and reduces the operating cost compared with the additional lighting system and ultraviolet sterilization system relying on electricity. Moreover, the ultraviolet light in the collected external light is separated by the light splitting device, avoiding the ultraviolet light irradiating out through the illumination light output light guide tube 20 and avoiding harm to indoor personnel.

[0071] It can be understood that the integrated lighting, ventilation and sterilization system of this embodiment can be applied not only to medical buildings, but also to other public places with dense population and poor air quality, which will not be described in detail here.

[0072] Although the specific implementation manners of the present invention are described above in conjunction with the drawings, it is not a limitation to the protection scope of the present invention. Those skilled in the art should understand that based on the technical solutions of the present invention, various modifications or deformations that can be made by those skilled in the art without creative efforts are still within the protection scope of the present invention.

Claims

1. An integrated lighting, ventilation and sterilization system for medical buildings, characterized in that: The invention comprises a plurality of air ducts, wherein an input light guide tube is arranged in the air duct, a fan is arranged in the gap between the input light guide tube and the air duct, a light collecting cover is arranged at the outdoor side end of the input light guide tube, the input light guide tube is connected with the input end of the spectrometer after passing through the air duct, the output end of the spectrometer is connected with the ultraviolet light guide tube and the illumination light output light guide tube which are arranged in parallel, wherein the ultraviolet light guide tube extends into the air duct and the outlet thereof extends to the indoor side end of the air duct.

2. The lighting, ventilation and sterilization integrated system for medical buildings as claimed in claim 1, characterized in that: A screen is provided at the outdoor side end of the gap between the input light guide tube and the air duct.

3. The lighting, ventilation and sterilization integrated system for medical buildings as claimed in claim 1, characterized in that: An air filter element is arranged between the inner tube surface of the indoor side end of the air duct and the outer tube surface of the ultraviolet light outputting light guide tube.

4. The lighting, ventilation and sterilization integrated system for medical buildings as claimed in claim 1, characterized in that: The fans are arranged in plurality, and the fans are evenly distributed in the gap between the input light guide tube and the air duct along the annular direction; or, The fan adopts a hollow shaft fan, and the input light guide tube passes through the hollow shaft in the center of the hollow shaft fan.

5. The lighting, ventilation and sterilization integrated system for medical buildings as claimed in claim 1, characterized in that: The pipe section of the input light guide pipe located in the air duct is coaxially arranged with the air duct.

6. The lighting, ventilation and sterilization integrated system for medical buildings as claimed in claim 1, characterized in that: A lighting fill-in light element is provided on one side of the exit of the lighting light output light guide tube, and the lighting fill-in light element is connected to a power supply.

7. The lighting, ventilation and sterilization integrated system for medical buildings as claimed in claim 6, characterized in that: A first diffuser is arranged on the periphery of the outlet of the lighting fill light element and the lighting light output light guide tube.

8. The lighting, ventilation and sterilization integrated system for medical buildings as claimed in claim 1, characterized in that: An ultraviolet light-filling element is arranged on one side of the outlet of the ultraviolet light-outputting light-guiding tube, and the ultraviolet light-filling element is connected to a power supply.

9. The lighting, ventilation and sterilization integrated system for medical buildings as claimed in claim 8, characterized in that: A second diffuser is arranged on the periphery of the outlet of the ultraviolet light supplement element and the ultraviolet light outputting light guide tube.

10. The lighting, ventilation and sterilization integrated system for medical buildings according to claim 6 or 8, characterized in that: The power supply adopts a battery, and the battery is connected to a photovoltaic system arranged on the roof or wall of a building.

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