High-efficiency indoor ventilation system for zero-carbon campus building
By designing an efficient ventilation system in campus buildings that combines photovoltaic power generation, energy storage and real-time ventilation control, the problem that ventilation systems in the existing technology cannot be adjusted in real time is solved, and the effect of energy conservation, emission reduction and operating costs is achieved.
Patent Information
- Application Number
- CN202421332779.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-12
- Publication Date
- 2025-02-25
- Estimated Expiration
- 2034-06-12
AI Technical Summary
The ventilation system of existing campus buildings cannot be adjusted in real time according to the density of population, resulting in waste of electricity, increased carbon emissions and operating costs.
Design a zero-carbon campus building indoor high-efficiency ventilation system, providing electricity through photovoltaic power generation and energy storage devices, combining carbon dioxide detectors and control terminals to ventilate areas in real time, and optimizing ventilation effect through variable frequency exhaust fans and electric blinds.
It has realized the real-time adjustment of the opening and closing of the ventilation system according to the population density in campus buildings, reducing electricity waste and carbon emissions, and reducing the operating costs of the school.
Smart Images
Figure CN222527879U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of zero-carbon campus, in particular to an indoor efficient ventilation system for a zero-carbon campus building. Background Art
[0002] A zero-carbon campus refers to a school that adopts sustainable energy, energy-saving technologies and environmental protection measures to minimize greenhouse gas emissions. As a public area with a high population density, the indoor carbon dioxide concentration of school buildings is relatively high. In order to ensure smooth air circulation in campus buildings, ventilation systems are very important.
[0003] When the weather is cold in winter, in order to avoid low indoor temperatures, large campus buildings such as basketball courts, cafeterias or auditoriums usually close their doors and windows, and use large exhaust fans or central air-conditioning ventilation systems to achieve indoor and outdoor ventilation of campus buildings to ensure indoor air circulation of campus buildings. However, in the current indoor ventilation systems of campus buildings, large exhaust fans or central air-conditioning usually only obtain electricity from the AC power circuit and run uninterruptedly. They cannot be adjusted in real time according to the population density in the campus buildings, which wastes a lot of electricity and increases unnecessary carbon emissions. At the same time, it increases the operating costs of the school. Utility Model Content
[0004] The purpose of the embodiments of the present application is to provide a zero-carbon campus building indoor high-efficiency ventilation system to solve the technical problems in the prior art that the large exhaust fans or central air conditioners in the ventilation system in the campus building only obtain power from the AC power circuit and operate uninterruptedly, and cannot be adjusted in real time according to the population density in the campus building, resulting in a large amount of waste of electricity, unnecessary increase in carbon emissions and increased school operating costs.
[0005] To achieve the above objectives, the present application embodiment adopts the following technical solutions:
[0006] A zero-carbon campus building indoor high-efficiency ventilation system is arranged on the campus building to achieve energy-saving and high-efficiency ventilation indoors of the campus building, comprising a photovoltaic power generation unit, an energy storage device, a control terminal and a ventilation system;
[0007] The photovoltaic power generation unit is used to collect solar energy for power generation;
[0008] The ventilation system includes an exhaust duct, a plurality of fresh air ducts and a plurality of carbon dioxide detectors;
[0009] The exhaust duct includes an exhaust main duct and a plurality of exhaust branch ducts, wherein the plurality of exhaust branch ducts are respectively arranged in different indoor areas of the campus building and are connected to one end of the exhaust main duct, and the other end of the exhaust main duct is arranged outdoors, and each of the exhaust branch ducts is provided with an exhaust fan;
[0010] One end of each of the plurality of fresh air ducts is disposed in different areas of the indoor space of the campus building, and the other end is connected to the outdoors. An electric blind is disposed at one end of each of the fresh air ducts close to the outdoors, and the blades of the electric blind face toward the end of the fresh air duct close to the indoor space of the campus building.
[0011] A plurality of the carbon dioxide detectors are respectively arranged at different areas of the indoor space of the campus building, and are used to collect the carbon dioxide content in different areas of the indoor space of the campus building;
[0012] The photovoltaic power generation unit is electrically connected to the energy storage device, the carbon dioxide detector, the exhaust fan and the electric blinds;
[0013] The energy storage device is electrically connected to the carbon dioxide detector, the exhaust fan and the electric blinds;
[0014] The exhaust fan, the electric shutters and the carbon dioxide detector are all electrically connected to the control terminal.
[0015] In a zero-carbon campus building indoor high-efficiency ventilation system described in an embodiment of the present application, the photovoltaic power generation unit includes a plurality of photovoltaic panels, a photovoltaic combiner box and a photovoltaic controller, and the plurality of photovoltaic panels are arranged on the top of the campus building and / or the sun-facing outer wall of the campus building, and are all electrically connected to the photovoltaic combiner box, and the photovoltaic combiner box is electrically connected to the photovoltaic controller;
[0016] The photovoltaic controller is electrically connected to the energy storage device, the carbon dioxide detector, the exhaust fan and the electric blinds.
[0017] In the zero-carbon campus building indoor high-efficiency ventilation system described in the embodiment of the present application, a wind power generation unit is also included, and the wind power generation unit includes a plurality of wind turbines and a wind power controller. The plurality of wind turbines are installed on the top of the campus building and are electrically connected to the wind power controller in parallel.
[0018] The wind power controller is electrically connected to the energy storage device, the carbon dioxide detector, the exhaust fan and the electric blinds.
[0019] In a zero-carbon campus building indoor high-efficiency ventilation system described in an embodiment of the present application, in the same area indoors of the campus building, the horizontal height of the air inlet of the exhaust branch duct is higher than the horizontal height of the air outlet of the fresh air duct, wherein the opening of the exhaust branch duct away from the exhaust main duct is defined as the air inlet of the exhaust branch duct, and the opening at one end of the fresh air duct away from the outdoors is defined as the air outlet of the fresh air duct.
[0020] In a zero-carbon campus building indoor high-efficiency ventilation system described in an embodiment of the present application, the exhaust fan is a variable frequency exhaust fan.
[0021] In a zero-carbon campus building indoor high-efficiency ventilation system described in an embodiment of the present application, the end of the exhaust main duct located outdoors is arranged at the top of the campus building, and its axial direction is arranged perpendicular to the horizontal plane. The end of the exhaust main duct located outdoors is provided with a filter assembly, and the filter assembly includes a connecting sleeve, a filter net and a brim;
[0022] One end of the connecting sleeve is connected to the exhaust main duct, and the other end thereof is connected to the brim via an extension bracket;
[0023] One end of the filter is connected to the connecting sleeve, and the other end is connected to the brim, and wraps the extension bracket.
[0024] In a zero-carbon campus building indoor efficient ventilation system described in an embodiment of the present application, the projection area of the brim on the horizontal plane is defined as S, and the projection area of the end of the exhaust main duct located outdoors on the horizontal plane is defined as A, then S>A is satisfied.
[0025] In a zero-carbon campus building indoor high-efficiency ventilation system described in an embodiment of the present application, the connecting sleeve is detachably connected to the exhaust main duct.
[0026] In a zero-carbon campus building indoor efficient ventilation system described in an embodiment of the present application, it is characterized in that a plurality of insulation panels are provided on the electric blinds, and each of the insulation panels is connected to an end of a blade of the electric blinds that faces the fresh air duct and is close to the indoor end of the campus building.
[0027] In a zero-carbon campus building indoor high-efficiency ventilation system described in an embodiment of the present application, the longitudinal length of the insulation board is defined as H, and the longitudinal length of the blades of the electric blinds is defined as h, then H≥h is satisfied.
[0028] Compared with the prior art, the embodiments of the present application have at least the following beneficial effects:
[0029] It can be seen from the above technical scheme that the embodiment of the present application provides a zero-carbon campus building indoor high-efficiency ventilation system, which divides the interior of the campus building into different areas, and is provided with an exhaust branch duct, a fresh air duct and a carbon dioxide detector in each area of the campus building. The exhaust branch duct is connected to the outdoors through the exhaust main duct, and the carbon dioxide concentration of different areas of the campus building is collected in real time by the carbon dioxide detector. The control terminal controls the start-up of the exhaust fan in the exhaust branch duct of the corresponding area and the opening of the electric shutters in the fresh air duct through the carbon dioxide concentration information of different areas collected by several carbon dioxide detectors in real time. Fresh air flows into the room from the fresh air duct, and the indoor air with high carbon dioxide concentration flows out from the exhaust branch duct and the exhaust main duct to form air convection, so as to realize real-time regional ventilation, and collect solar energy to generate electricity through the photovoltaic power generation unit, which solves the technical problem in the prior art that the large exhaust fans or central air conditioners in the ventilation system of the campus building only obtain electricity from the mains circuit and do not operate continuously, and cannot be adjusted in real time according to the population density in the campus building, resulting in a large amount of electricity wasted, unnecessary carbon emissions and increased school operating costs. BRIEF DESCRIPTION OF THE DRAWINGS
[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following is a brief introduction to the drawings required for the description of the embodiments. The drawings are not intended to be drawn to scale, and for the sake of clarity, not every component will be marked in each figure. The drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work. Among them:
[0031] Figure 1 It is a structural schematic diagram of a zero-carbon campus building indoor efficient ventilation system provided in an embodiment of the present application.
[0032] Figure 2 It is a schematic diagram of the planar structure of a zero-carbon campus building indoor efficient ventilation system provided in an embodiment of the present application.
[0033] Figure 3 This is an electrical connection framework diagram of a zero-carbon campus building indoor high-efficiency ventilation system provided in an embodiment of the present application.
[0034] Figure 4 It is a schematic diagram of the structure of the filter assembly in the embodiment of the present application.
[0035] Figure 5 It is a schematic diagram of the structure of the electric blinds in the embodiment of the present application.
[0036] Description of reference numerals:
[0037] 1-campus building, 2-energy storage device, 3-control terminal, 4-fresh air duct, 5-carbon dioxide detector, 6-exhaust main duct, 7-exhaust branch duct, 8-exhaust fan, 9-electric shutters, 10-photovoltaic panel, 11-photovoltaic junction box, 12-photovoltaic controller, 13-wind turbine, 14-wind power controller, 15-connecting sleeve, 16-filter, 17-brim, 18-extension bracket, 19-insulation board. DETAILED DESCRIPTION
[0038] The embodiment of the present application provides a zero-carbon campus building indoor high-efficiency ventilation system to solve the technical problems in the prior art that the large exhaust fans or central air conditioners in the ventilation system in the campus building only obtain power from the mains circuit and are not operated continuously, and cannot be adjusted in real time according to the population density in the campus building, resulting in a large amount of waste of electricity, unnecessary increase in carbon emissions and increased school operating costs.
[0039] In view of this, the concept of the embodiment of the present application is to divide the interior of the campus building into different areas, and to set an exhaust branch duct, a fresh air duct and a carbon dioxide detector in each area of the campus building. The exhaust branch duct is connected to the outdoors through the exhaust main duct, and the carbon dioxide concentration of different areas of the campus building is collected in real time through the carbon dioxide detector. The control terminal controls the start-up of the exhaust fans in the exhaust branch ducts of the corresponding areas and the opening of the electric shutters in the fresh air duct through the carbon dioxide concentration information of different areas collected by several carbon dioxide detectors in real time. Fresh air flows into the room from the fresh air duct, and the indoor air with high carbon dioxide concentration flows out from the exhaust branch duct and the exhaust main duct to form air convection, so as to realize real-time regional ventilation, and to collect solar energy for power generation through the photovoltaic power generation unit, so as to solve the technical problems in the prior art that the large exhaust fans or central air conditioners in the ventilation system of the campus building only obtain power from the AC circuit and do not operate continuously, and cannot be adjusted in real time according to the population density in the campus building, resulting in a large amount of waste of electricity, unnecessary increase in carbon emissions and increased school operating costs.
[0040] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.
[0041] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.
[0042] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.
[0043] In the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.
[0044] The disclosure below provides many different embodiments or examples to realize the different structures of the present application. In order to simplify the disclosure of the present application, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present application. In addition, the present application can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, which itself does not indicate the relationship between the various embodiments and / or settings discussed. In addition, the various specific processes and material examples provided by the present application, but those of ordinary skill in the art can appreciate the application of other processes and / or the use of other materials.
[0045] The present application embodiment provides a zero-carbon campus building indoor efficient ventilation system. Figures 1 to 5 As shown, a zero-carbon campus building indoor high-efficiency ventilation system is arranged on a campus building 1 to achieve energy-saving and high-efficiency ventilation indoors of the campus building 1, comprising a photovoltaic power generation unit, an energy storage device 2, a control terminal 3 and a ventilation system.
[0046] Wherein, the control terminal 3 may be a PLC controller.
[0047] The photovoltaic power generation unit is used to collect solar energy to generate electricity to provide electrical energy.
[0048] Specifically, the photovoltaic power generation unit includes a plurality of photovoltaic panels 10, a photovoltaic junction box 11 and a photovoltaic controller 12. The plurality of photovoltaic panels 10 are arranged on the top of the campus building 1 and / or the sun-facing exterior wall of the campus building 1, and are all electrically connected to the photovoltaic junction box 1. The photovoltaic junction box 11 is electrically connected to the photovoltaic controller 12.
[0049] The ventilation system includes an exhaust duct, a plurality of fresh air ducts 4 and a plurality of carbon dioxide detectors 5. The exhaust duct includes an exhaust main duct 6 and a plurality of exhaust branch ducts 7. The plurality of exhaust branch ducts 7 are respectively arranged in different indoor areas of the campus building 1 and are all connected to one end of the exhaust main duct 6. The other end of the exhaust main duct 6 is arranged outdoors. Each of the exhaust branch ducts 7 is provided with an exhaust fan 8.
[0050] Specifically, the end of the exhaust main duct 6 located outdoors is arranged at the top of the campus building 1, and its axial direction is arranged perpendicular to the horizontal plane. In order to prevent outdoor foreign objects from falling from the exhaust main duct 6 to block the exhaust main duct 6 and weaken the ventilation effect, a filter assembly is arranged at the end of the exhaust main duct 6 located outdoors. The filter assembly includes a connecting sleeve 15, a filter net 16 and a brim 17. One end of the connecting sleeve 15 is connected to the exhaust main duct 6, and the other end thereof is connected to the brim 17 through an extension bracket 18. One end of the filter net 16 is connected to the connecting sleeve 15, and the other end is connected to the brim 17, and the extension bracket 18 is wrapped.
[0051] Among them, in this embodiment, the cross-section of the exhaust main duct 6 is rectangular, so the cross-section of the connecting sleeve 15 is also rectangular, and an "exhaust gap" for installing the filter 16 is reserved between the brim 17 and the connecting sleeve 15. The brim 17 is fixedly installed on the connecting sleeve 15 through the extension bracket 18. The brim 17 is a quadrangular pyramid. The different indoor areas of the campus building 1 can be the indoor areas of large buildings on campus divided into individual areas, such as in a basketball court, cafeteria or auditorium, the entire basketball court, cafeteria or auditorium can be divided into area A, area B, area C or more areas, and each room in a building with small rooms on campus can also be set as an area, such as a dormitory, classroom, etc.
[0052] One end of each of the several fresh air ducts 4 is respectively arranged at different indoor areas of the campus building 1, and the other end is connected to the outdoors. An electric shutter 9 is provided at the end of each of the fresh air ducts 4 close to the outdoors, and the fan blades of the electric shutter 9 face the end of the fresh air duct 4 close to the indoor area of the campus building 1. In order to improve the thermal insulation effect of the campus building 1 when ventilation is not required, a plurality of insulation panels 19 are provided on the electric shutter 9, and each of the insulation panels 19 is connected to the end of a blade of the electric shutter facing the indoor area of the fresh air duct 4 close to the indoor area of the campus building 1. A plurality of carbon dioxide detectors 5 are respectively arranged at different indoor areas of the campus building 1, for collecting the carbon dioxide content in different indoor areas of the campus building 1.
[0053] Specifically, in the same area indoors of the campus building 1 , the horizontal height of the air inlet of the exhaust branch duct 7 is higher than the horizontal height of the air outlet of the fresh air duct 4 .
[0054] Among them, the opening of the exhaust branch duct 7 away from the exhaust main duct 6 is defined as the air inlet of the exhaust branch duct 7, and the opening of one end of the fresh air duct 4 away from the outdoors is defined as the air outlet of the fresh air duct 4; the longitudinal length of the insulation board 19 is defined as H, and the longitudinal length of the fan blades of the electric blinds is h, then H≥h is satisfied, and when H>h, the thermal insulation effect is best.
[0055] The photovoltaic power generation unit is electrically connected to the energy storage device, the carbon dioxide detector, the exhaust fan and the electric blinds.
[0056] Specifically, the photovoltaic controller 12 is electrically connected to the energy storage device 2, the carbon dioxide detector 5, the exhaust fan 8 and the electric blinds 9. The electric energy generated by the photovoltaic panel 10 can be supplied to the carbon dioxide detector 5, the exhaust fan 8 and the electric blinds 9 through an inverter after passing through the photovoltaic controller 12, and can also be stored in the energy storage device 2.
[0057] The energy storage device 2 is electrically connected to the carbon dioxide detector 5 , the exhaust fan 8 and the electric shutter 9 , and the exhaust fan 8 , the electric shutter 9 and the carbon dioxide detector 5 are electrically connected to the control terminal 3 .
[0058] Among them, when the photovoltaic controller 12 does not provide electric energy to the power terminal, the energy storage device 2 provides electric energy to the power terminal, collects the carbon dioxide concentration of different indoor areas of the campus building 1 through the carbon dioxide detector 5, and transmits the concentration information to the control terminal 3. The control terminal 3 controls the exhaust fan 8 in the corresponding area to start and the electric blinds 9 to open, so as to perform convection ventilation on the area. The carbon dioxide detector 5, the exhaust fan 8 and the electric blinds 9 are all power terminals.
[0059] In some embodiments, a wind power generation unit is also included, and the wind power generation unit includes a plurality of wind turbines 13 and a wind power controller 14. The plurality of wind turbines 13 are installed on the top of the campus building 1 and are electrically connected to the wind power controller 14 in parallel. The wind power controller 14 is electrically connected to the energy storage device 2, the carbon dioxide detector 5, the exhaust fan 8 and the electric blinds 9.
[0060] Among them, the wind turbine 13 is arranged at the end of the photovoltaic panel 10 away from the sun to prevent the wind turbine 13 from blocking the photovoltaic panel 10 and reducing the efficiency of the photovoltaic panel 10 in collecting solar energy. Specifically, the wind turbine 13 is arranged at the north end of the top of the campus building 1. The electric energy generated by the wind turbine 13 can be rectified and filtered by the wind power controller 14 to charge the energy storage device 2, and can also be powered by frequency conversion, boosting and stabilizing the voltage to supply power to the carbon dioxide detector 5, the exhaust fan 8 and the electric blinds 9.
[0061] In some embodiments, the exhaust fan 8 is a variable frequency exhaust fan. By setting the exhaust fan 8 as an exhaust fan with a variable frequency function, the rotation speed of the exhaust fan 8 can be adjusted according to the different carbon dioxide concentrations in different indoor areas of the campus building 1, thereby maintaining the indoor ventilation effect of the campus building 1 while reducing power loss as much as possible.
[0062] In some embodiments, the projection area of the brim 17 on the horizontal plane is defined as S, and the projection area of the end of the exhaust main duct 6 located outdoors on the horizontal plane is defined as A, then S>A is satisfied.
[0063] Among them, in this embodiment, the brim 17 is a four-sided pyramid, and its projection on the horizontal plane is a rectangle with an area of S. The cross-section of the exhaust main duct 6 is a rectangle, and its projection on the horizontal plane is a rectangle with an area of A. The projection of the exhaust main duct 6 on the horizontal plane is completely within the projection of the brim 17 on the sleeping surface to prevent rainwater from entering the exhaust main duct 6 when it rains.
[0064] In some embodiments, the connecting sleeve 15 is detachably connected to the exhaust main duct 6 .
[0065] Among them, the bottom end of the connecting sleeve 15 is provided with an annular protrusion, and the end of the exhaust main duct 6 connected to the connecting sleeve 15 is provided with an annular groove. The connecting sleeve 15 and the exhaust main duct 6 are detachably connected via the annular protrusion and the annular groove. By setting the connecting sleeve 15 and the exhaust main duct 6 detachably connected, it is convenient to disassemble the filter assembly to clean the filter 16 when the filter 16 is blocked.
[0066] In summary, the embodiment of the present application provides a zero-carbon campus building indoor high-efficiency ventilation system, which divides the interior of the campus building into different areas, and is provided with an exhaust branch duct, a fresh air duct and a carbon dioxide detector in each area of the campus building. The exhaust branch duct is connected to the outdoors through the exhaust main duct, and the carbon dioxide concentration of different areas of the campus building is collected in real time by the carbon dioxide detector. The control terminal controls the start-up of the exhaust fan in the exhaust branch duct of the corresponding area and the opening of the electric shutters in the fresh air duct through the carbon dioxide concentration information of different areas collected by several carbon dioxide detectors in real time. Fresh air flows into the room from the fresh air duct, and the indoor air with a high carbon dioxide concentration flows out from the exhaust branch duct and the exhaust main duct to form air convection, so as to realize real-time regional ventilation, and collect solar energy to generate electricity through the photovoltaic power generation unit, which solves the technical problem in the prior art that the large exhaust fans or central air conditioners in the ventilation system of the campus building only obtain electricity from the mains circuit and do not operate continuously, and cannot be adjusted in real time according to the population density in the campus building, resulting in a large amount of electricity wasted, unnecessary carbon emissions and increased school operating costs.
[0067] The above is a detailed introduction to a zero-carbon campus building indoor high-efficiency ventilation system provided in an embodiment of the present application. This article uses specific examples to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the technical solution and its core idea of the present application; ordinary technicians in this field should understand that: they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some of the technical features therein with equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.
Claims
1. A zero-carbon campus building indoor high-efficiency ventilation system, which is installed on the campus building to achieve energy-saving and high-efficiency ventilation indoors of the campus building, characterized in that: Including photovoltaic power generation unit, energy storage device, control terminal and ventilation system; The photovoltaic power generation unit is used to collect solar energy for power generation; The ventilation system includes an exhaust duct, a plurality of fresh air ducts and a plurality of carbon dioxide detectors; The exhaust duct includes an exhaust main duct and a plurality of exhaust branch ducts, wherein the plurality of exhaust branch ducts are respectively arranged in different indoor areas of the campus building and are connected to one end of the exhaust main duct, and the other end of the exhaust main duct is arranged outdoors, and each of the exhaust branch ducts is provided with an exhaust fan; One end of each of the plurality of fresh air ducts is disposed in different areas of the indoor space of the campus building, and the other end is connected to the outdoors. An electric blind is disposed at one end of each of the fresh air ducts close to the outdoors, and the blades of the electric blind face toward the end of the fresh air duct close to the indoor space of the campus building. A plurality of the carbon dioxide detectors are respectively arranged at different areas of the indoor space of the campus building, and are used to collect the carbon dioxide content in different areas of the indoor space of the campus building; The photovoltaic power generation unit is electrically connected to the energy storage device, the carbon dioxide detector, the exhaust fan and the electric blinds; The energy storage device is electrically connected to the carbon dioxide detector, the exhaust fan and the electric blinds; The exhaust fan, the electric shutters and the carbon dioxide detector are all electrically connected to the control terminal.
2. A zero-carbon campus building indoor high-efficiency ventilation system as claimed in claim 1, characterized in that: The photovoltaic power generation unit includes a plurality of photovoltaic panels, a photovoltaic combiner box and a photovoltaic controller. The plurality of photovoltaic panels are arranged on the top of the campus building and / or the sun-facing outer wall of the campus building, and are electrically connected to the photovoltaic combiner box, and the photovoltaic combiner box is electrically connected to the photovoltaic controller; The photovoltaic controller is electrically connected to the energy storage device, the carbon dioxide detector, the exhaust fan and the electric blinds.
3. The zero-carbon campus building indoor high-efficiency ventilation system according to claim 1, characterized in that: It also includes a wind power generation unit, which includes a plurality of wind turbines and a wind power controller, wherein the plurality of wind turbines are installed on the top of the campus building and are electrically connected to the wind power controller in parallel; The wind power controller is electrically connected to the energy storage device, the carbon dioxide detector, the exhaust fan and the electric blinds.
4. The zero-carbon campus building indoor high-efficiency ventilation system according to claim 1, characterized in that: In the same area indoors of the campus building, the horizontal height of the air inlet of the exhaust branch duct is higher than the horizontal height of the air outlet of the fresh air duct, wherein the opening of the exhaust branch duct away from the exhaust main duct is defined as the air inlet of the exhaust branch duct, and the opening at one end of the fresh air duct away from the outdoors is defined as the air outlet of the fresh air duct.
5. The zero-carbon campus building indoor high-efficiency ventilation system according to claim 1, characterized in that: The exhaust fan is a variable frequency exhaust fan.
6. The zero-carbon campus building indoor high-efficiency ventilation system according to claim 1, characterized in that: The end of the exhaust main duct located outdoors is arranged at the top of the campus building, and its axial direction is arranged perpendicular to the horizontal plane. The end of the exhaust main duct located outdoors is provided with a filter assembly, and the filter assembly includes a connecting sleeve, a filter net and a brim; One end of the connecting sleeve is connected to the exhaust main duct, and the other end thereof is connected to the brim via an extension bracket; One end of the filter is connected to the connecting sleeve, and the other end is connected to the brim, and wraps the extension bracket.
7. A zero-carbon campus building indoor high-efficiency ventilation system as claimed in claim 6, characterized in that: Define the projection area of the brim on the horizontal plane as S, and the projection area of the end of the exhaust main duct located outdoors on the horizontal plane as A, then S>A is satisfied.
8. The zero-carbon campus building indoor high-efficiency ventilation system according to claim 6, characterized in that: The connecting sleeve is detachably connected to the main exhaust duct.
9. The zero-carbon campus building indoor high-efficiency ventilation system according to claim 1, characterized in that: The electric blinds are provided with a plurality of heat insulation plates, and each of the heat insulation plates is connected to an end of a leaf of the electric blinds that faces the fresh air duct and is close to the indoor end of the campus building.
10. A zero-carbon campus building indoor high-efficiency ventilation system as claimed in claim 9, characterized in that: Define the longitudinal length of the heat insulation board as H, and the longitudinal length of the blades of the electric blinds as h, then H≥h is satisfied.