阅读说明：本技术 用太阳能驱动的空调送风系统 (Air conditioner air supply system driven by solar energy ) 是由 李洪强 于 2019-09-11 设计创作，主要内容包括：本发明涉及装配式建筑领域,尤其涉及一种用太阳能驱动的空调送风系统,其包括太阳能集热器、辅助热源、溴化锂制冷机组、送风系统、侧墙送风终端、地暖系统以及信号反馈控制网络。通过将太阳能集热器与辅助热源相耦合产生热能,为溴化锂制冷机组提供能量的同时也能为冬季辐射采暖设备供热,可以极大限度地提高系统在夏季对太阳能的利用,而且该系统的驱动主要依靠的是太阳能,而非电能这种二次能源,相比于现有技术,可有效地降低能耗；信号反馈控制网络实时监测并控制各个设备的运行状态,并通过控制送风系统、溴化锂制冷机组等来调节室内温度,有效地改善了室内环境,极大地提高了室内人体舒适度。(The invention relates to the field of assembly type buildings, in particular to an air-conditioning air supply system driven by solar energy. The solar heat collector is coupled with the auxiliary heat source to generate heat energy, so that the lithium bromide refrigerating unit can be supplied with energy and heat for winter radiation heating equipment, the utilization of the system on solar energy in summer can be greatly improved, and the system is driven mainly by solar energy instead of secondary energy of electric energy, so that compared with the prior art, the energy consumption can be effectively reduced; the signal feedback control network monitors and controls the running state of each device in real time, and adjusts the indoor temperature by controlling the air supply system, the lithium bromide refrigerating unit and the like, thereby effectively improving the indoor environment and greatly improving the indoor human body comfort level.)

1. an air conditioning air supply system driven by solar energy, characterized in that the air conditioning air supply system comprises:

The solar heat collector is used for heating water used in the air supply system of the air conditioner;

An auxiliary heat source for auxiliary heating of water produced in the solar collector;

The water inlet of the lithium bromide refrigerating unit is connected with the outlet of the auxiliary heat source, the water outlet of the lithium bromide refrigerating unit is connected with the inlet of the solar heat collector, and the lithium bromide refrigerating unit is used for producing water at a set temperature;

The inlet of the air supply system is connected with the lithium bromide refrigerating unit through a pipeline, and the air supply system is used for conveying air;

The side wall air supply terminal is used for conveying air to the indoor space;

The inlet of the floor heating system is connected with the outlet of the auxiliary heat source, the outlet of the floor heating system is connected with the inlet of the solar heat collector, and the floor heating system is used for radiating heat indoors;

and the signal feedback control network is electrically or in signal connection with the solar heat collector, the auxiliary heat source, the lithium bromide refrigerating unit, the air supply system, the side wall air supply terminal and the floor heating system.

2. the air conditioning air supply system of claim 1, wherein: the lithium bromide refrigerating unit comprises a cold producing device and a heat exchange device;

the cooling device comprises a cooling tower, a refrigerating module, a heating module and a cooling module, wherein the cooling tower and the cooling module are connected through a pipeline to form a circulation loop, the heating module, the cooling module and the refrigerating module are sequentially connected through a pipeline to form a circulation loop, and the heating module, the solar thermal collector and the auxiliary heat source are sequentially connected through a pipeline to form a circulation loop;

The heat exchange device comprises an air pipe and a water pipe which can exchange heat with each other, the water pipe is connected with the refrigeration module through a pipeline to form a circulation loop, the inlet of the air pipe is connected with the outside, and the outlet of the air pipe is connected with the inlet of the air supply system.

3. The air conditioning air supply system of claim 2, wherein: the air supply system comprises a plate heat exchanger, a humidity regulator and a fan, and the air pipe, the humidity regulator, the fan and the side wall air supply terminal are sequentially connected through a pipeline; the plate heat exchanger comprises a water channel and an air channel which can exchange heat with each other, wherein the inlet of the water channel is connected with the outlet of the auxiliary heat source, the outlet of the water channel is connected with the inlet of the solar heat collector, the inlet of the air channel is connected with the outside, and the outlet of the air channel is connected with the inlet of the humidity regulator.

4. an air conditioning air supply system as recited in claim 3, further comprising: the humidity regulator comprises a humidifying module and a dehumidifying module, and the humidifying module and the dehumidifying module are arranged in parallel or in series;

When the humidifying module and the dehumidifying module are arranged in parallel, inlets of the humidifying module and the dehumidifying module are both connected with an outlet of the air pipe, and outlets of the humidifying module and the dehumidifying module are both connected with an inlet of the fan;

the humidification module with when the dehumidification module is established ties and is set up, the tuber pipe the dehumidification module the humidification module and the fan connects gradually, perhaps, the tuber pipe the humidification module the dehumidification module and the fan connects gradually.

5. An air conditioning air supply system as recited in claim 3, further comprising: the side wall air supply terminal comprises a plurality of air supply devices, each air supply device comprises an air supply pore plate and a static pressure chamber, the air supply pore plates are arranged in the same vertical plane, a plurality of air supply holes are formed in the air supply pore plates, the static pressure chamber is communicated with the indoor space through the air supply holes, and an inlet of the static pressure chamber is connected with an outlet of the fan.

6. the air conditioning air supply system of claim 2, wherein: the air conditioner air supply system further comprises an air return system, the air return system comprises a dirt concentration monitoring device and a filtering device which are sequentially connected through pipelines, the inlet of the dirt concentration monitoring device is connected indoors, and the outlet of the filtering device is connected with the inlet of the air pipe.

7. The air conditioning air supply system of claim 6, wherein: the air conditioner air supply system further comprises an exhaust system, the exhaust system comprises an exhaust pipe and a heat dissipation flow channel, the inlet of the exhaust pipe is connected indoors through the dirt concentration monitoring device, the outlet of the exhaust pipe is connected with the inlet of the heat dissipation flow channel, and the outlet of the heat dissipation flow channel is connected outdoors.

8. An air conditioning air supply system as recited in any of claims 1-7, further characterized by: the auxiliary heat source is a boiler, an inlet of the boiler is connected with an outlet of the solar heat collector, and an outlet of the boiler is connected with the lithium bromide refrigerating unit, the air supply system and the floor heating system respectively.

9. an air conditioning air supply system as recited in any of claims 1-7, further characterized by: the floor heating system is arranged on the surface of an indoor floor and comprises a radiation pipe network, an inlet of the radiation pipe network is connected with an outlet of the auxiliary heat source, and an outlet of the radiation pipe network is connected with an inlet of the solar heat collector.

10. An air conditioning air supply system as recited in any of claims 1-7, further characterized by: the air conditioner air supply system also comprises a building energy consumption monitoring device, the building energy consumption monitoring device is arranged indoors and is used for monitoring the change of indoor cold and hot loads; and the building energy consumption monitoring device is electrically connected or in signal connection with the signal feedback control network.

Technical Field

the invention relates to the field of fabricated buildings, in particular to an air-conditioning air supply system driven by solar energy.

background

since the 70 s of the 20 th century, the increasing energy crisis and environmental problems have caused countries around the world to seek cleaner and more efficient renewable energy sources to alleviate the energy and environmental stresses of building air conditioning systems. The solar energy has the advantages of large content, wide distribution, cleanness and the like, and becomes the key point of research of experts and scholars. Solar building integrated air conditioning systems that use solar air conditioning technology to achieve winter heating, summer cooling, and four season hot water supply have been applied in some engineering cases, thus proving their feasibility, such as solar air conditioning hot water systems in china, SACE projects in the european union, and Task25 and Task38 completed in the international energy agency. For rural areas, the occupied area is wide and solar photo-thermal resources are abundant, so that the solar thermal collector has enough space for installing the solar thermal collector, but how to efficiently utilize solar energy is a problem to be solved urgently.

However, the solar energy resource does not exist all the time, and when the solar energy resource meets continuous rainy weather, the heat generated by the solar heat collector cannot meet the heat requirement of the system, which will affect the normal operation of the system, so that the indoor cooling and heating requirements cannot be met. In addition, for rural residential buildings, people pay attention to how to ensure the normal operation of the system, meet the indoor cold and heat load requirements, but ignore the quality of indoor air and the heat comfort of indoor personnel, so that the traditional rural residential buildings have poor indoor environment and cannot meet the comfort requirements of indoor personnel under the working condition of the existing air conditioner.

Disclosure of Invention

Technical problem to be solved

The invention provides an air-conditioning air supply system driven by solar energy, and aims to solve the technical problems of low solar energy utilization efficiency and poor indoor comfort.

(II) technical scheme

In order to achieve the purpose, the invention adopts the main technical scheme that:

the solar heat collector is used for heating water used in the air supply system of the air conditioner;

An auxiliary heat source for auxiliary heating of water produced in the solar collector;

The water inlet of the lithium bromide refrigerating unit is connected with the outlet of the auxiliary heat source, the water outlet of the lithium bromide refrigerating unit is connected with the inlet of the solar heat collector, and the lithium bromide refrigerating unit is used for producing water at a set temperature;

The inlet of the air supply system is connected with the lithium bromide refrigerating unit through a pipeline, and the air supply system is used for conveying air;

The side wall air supply terminal is used for conveying air to the indoor space;

The inlet of the floor heating system is connected with the outlet of the auxiliary heat source, the outlet of the floor heating system is connected with the inlet of the solar heat collector, and the floor heating system is used for radiating heat indoors;

and the signal feedback control network is electrically or in signal connection with the solar heat collector, the auxiliary heat source, the lithium bromide refrigerating unit, the air supply system, the side wall air supply terminal and the floor heating system.

Preferably, the lithium bromide refrigerating unit comprises a cold producing device and a heat exchanging device;

The cooling device comprises a cooling tower, a refrigerating module, a heating module and a cooling module, wherein the cooling tower and the cooling module are connected through a pipeline to form a circulation loop, the heating module, the cooling module and the refrigerating module are sequentially connected through a pipeline to form a circulation loop, and the heating module, the solar thermal collector and the auxiliary heat source are sequentially connected through a pipeline to form a circulation loop;

the heat exchange device comprises an air pipe and a water pipe which can exchange heat with each other, the water pipe is connected with the refrigeration module through a pipeline to form a circulation loop, the inlet of the air pipe is connected with the outside, and the outlet of the air pipe is connected with the inlet of the air supply system.

Preferably, the air supply system comprises a plate heat exchanger, a humidity regulator and a fan, and the air pipe, the humidity regulator, the fan and the side wall air supply terminal are sequentially connected through a pipeline; the plate heat exchanger comprises a water channel and an air channel which can exchange heat with each other, wherein the inlet of the water channel is connected with the outlet of the auxiliary heat source, the outlet of the water channel is connected with the inlet of the solar heat collector, the inlet of the air channel is connected with the outside, and the outlet of the air channel is connected with the inlet of the humidity regulator.

preferably, the humidity regulator comprises a humidifying module and a dehumidifying module, and the humidifying module and the dehumidifying module are arranged in parallel or in series;

When the humidifying module and the dehumidifying module are arranged in parallel, inlets of the humidifying module and the dehumidifying module are both connected with an outlet of the air pipe, and outlets of the humidifying module and the dehumidifying module are both connected with an inlet of the fan;

The humidification module with when the dehumidification module is established ties and is set up, the tuber pipe the dehumidification module the humidification module and the fan connects gradually, perhaps, the tuber pipe the humidification module the dehumidification module and the fan connects gradually.

Preferably, the side wall air supply terminal comprises a plurality of air supply devices, each air supply device comprises an air supply pore plate and a static pressure chamber, the air supply pore plates are arranged on the same vertical plane, a plurality of air supply pores are formed in the air supply pore plates, the static pressure chamber is communicated with the indoor space through the air supply pores, and an inlet of the static pressure chamber is connected with an outlet of the fan.

preferably, air conditioner air supply system still includes the return air system, the return air system includes filth concentration monitoring device and the filter equipment who connects gradually through the pipeline, filth concentration monitoring device's entry linkage is indoor, filter equipment's export with the entry linkage of tuber pipe.

Preferably, the air-conditioning air supply system further comprises an exhaust system, the exhaust system comprises an exhaust pipe and a heat dissipation flow channel, an inlet of the exhaust pipe is connected indoors through the dirt concentration monitoring device, an outlet of the exhaust pipe is connected with an inlet of the heat dissipation flow channel, and an outlet of the heat dissipation flow channel is connected outdoors.

Preferably, the auxiliary heat source is a boiler, an inlet of the boiler is connected with an outlet of the solar heat collector, and an outlet of the boiler is respectively connected with the lithium bromide refrigerating unit, the air supply system and the floor heating system.

Preferably, the underfloor heating system sets up in indoor floor surface, the underfloor heating system includes the radiation pipe network, the entry of radiation pipe network with the exit linkage of auxiliary heat source, the export of radiation pipe network with the entry linkage of solar collector.

preferably, the air-conditioning air supply system further comprises a building energy consumption monitoring device, the building energy consumption monitoring device is arranged indoors, and the building energy consumption monitoring device is used for monitoring the change of indoor cold and heat loads; and the building energy consumption monitoring device is electrically connected or in signal connection with the signal feedback control network.

(III) advantageous effects

The invention has the beneficial effects that: the solar heat collector is coupled with the auxiliary heat source to generate heat energy, so that the lithium bromide refrigerating unit can be supplied with energy and heat for winter radiation heating equipment, the utilization of the system on solar energy in summer can be greatly improved, and the system is driven mainly by solar energy instead of secondary energy of electric energy, so that compared with the prior art, the energy consumption can be effectively reduced; the signal feedback control network monitors and controls the running state of each device in real time, and adjusts the indoor temperature by controlling the air supply system, the lithium bromide refrigerating unit and the like, thereby effectively improving the indoor environment and greatly improving the indoor human body comfort level.

Drawings

FIG. 1 is a schematic view of the overall structure of a solar-powered air-conditioning air supply system according to the present invention;

FIG. 2 is a schematic diagram of a lithium bromide refrigeration unit according to the present invention;

FIG. 3 is a schematic view of the wind system of the solar powered air conditioning system of the present invention;

FIG. 4 is a schematic diagram of the operation of the solar powered air conditioning supply system of the present invention in a summer cooling mode;

FIG. 5 is a schematic view of the solar powered air conditioning supply system of the present invention operating during a winter heating mode;

Fig. 6 is a schematic diagram of the operation of the solar-powered air-conditioning blowing system in a transitional season blowing state.

[ description of reference ]

10: a dirt concentration monitoring device; 11: a return air duct; 12: an exhaust duct; 13: a heat dissipation flow channel;

21: a static pressure chamber; 22: and the air supply pore plate.

Detailed Description

for the purpose of better explaining the present invention and to facilitate understanding, the present invention will be described in detail by way of specific embodiments with reference to the accompanying drawings.

it should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

The invention provides an air-conditioning air supply system driven by solar energy, as shown in figure 1, comprising:

The solar heat collector is used for heating water used in the air-conditioning air supply system; the solar heat collector converts solar energy into heat energy by absorbing the solar energy and stores the heat energy in water flowing through the device, so that the temperature of the water is increased and is used as a main energy source of the whole air-conditioning air supply system, the solar heat collector effectively utilizes the solar energy, and the energy consumption of the air-conditioning air supply system is effectively reduced;

The auxiliary heat source is used for assisting in heating water produced in the solar heat collector; under the conditions of low-temperature seasons or rainy days, the solar energy is insufficient, and the solar thermal collector cannot be guaranteed to have enough hot water supply, at the moment, the auxiliary heat source is utilized to heat the water produced by the solar thermal collector so as to guarantee the normal operation of the system; in a preferred embodiment, the auxiliary heat source adopts a small gas boiler, so that the use cost is reduced under the condition of ensuring safety;

the system comprises a lithium bromide refrigerating unit, a heat pump; the lithium bromide refrigerating unit cools indoor return air and outdoor fresh air to indoor air supply temperature by producing low-temperature water with set temperature, and bears indoor heat load;

The inlet of the air supply system is connected with the lithium bromide refrigerating unit through a pipeline, and the air supply system is used for extracting fresh air from the outdoor and conveying the fresh air to the indoor;

The side wall air supply terminal is used for forming displacement air supply with large air quantity, low air speed and small temperature difference indoors, ensuring the uniformity of an indoor speed field and a temperature field and reducing the foundation of indoor temperature gradient;

The inlet of the floor heating system is connected with the outlet of the auxiliary heat source, the outlet of the floor heating system is connected with the inlet of the solar heat collector, and the floor heating system is used for radiating heat indoors in winter;

The system comprises a signal feedback control network, wherein the signal feedback control network is electrically connected or in signal connection with a solar heat collector, an auxiliary heat source, a lithium bromide refrigerating unit, an air supply system, a side wall air supply terminal, a floor heating system, an air return system and an air exhaust system, is used for monitoring the running state of each device in real time, and controls the state of each device in real time according to the setting of a user, so that the indoor air quality is improved, the unnecessary energy waste is reduced, and the energy consumption of residential buildings is reduced.

As shown in fig. 2, specifically, the lithium bromide refrigeration unit comprises a cold producing device and a heat exchanging device which are connected through a pipeline to form a circulation loop; the refrigeration device comprises a cooling tower, a refrigeration module, a heating module and a cooling module, wherein the cooling tower and the cooling module are connected through a pipeline to form a circulation loop, namely, an outlet of the cooling tower is connected with an inlet of the cooling module through a pipeline, and an inlet of the cooling tower is connected with an outlet of the cooling module through a pipeline; the heating module, the cooling module and the refrigerating module are sequentially connected through the pipeline to form a circulation loop, namely, after the heating module, the cooling module and the refrigerating module are sequentially connected through the pipeline, fluid flowing out of the refrigerating module returns to the heating module through the pipeline, and therefore the circulation loop is formed. The heating module, the cooling module and the refrigeration module in the lithium bromide refrigeration unit can be specifically connected with one another by referring to the existing lithium bromide refrigeration unit.

In addition, the heating module, the solar thermal collector and the auxiliary heat source are connected through a pipeline to form a circulation loop, namely, an outlet of the heating module is connected with an inlet of the solar thermal collector through a pipeline, an outlet of the solar thermal collector is connected with an inlet of the auxiliary heat source through a pipeline, and an outlet of the auxiliary heat source is connected with an inlet of the heating module through a pipeline; heat transfer device is including tuber pipe and the water pipe that can heat transfer each other, heat transfer device can be plate heat exchanger or the heat transfer device of other forms, under the heat transfer circumstances that guarantees well, water pipe and tuber pipe mutual isolation, its mode of arranging can be set up the heat transfer end of water pipe in the tuber pipe, when the tuber pipe is flowed through to the new trend, the new trend can be taken away the cold volume of aquatic, the water pipe passes through tube coupling with the refrigeration module and forms circulation circuit, the export of water pipe passes through tube coupling with the entry of refrigeration module promptly, the export of refrigeration module passes through tube coupling with the entry of water pipe, the entry linkage of tuber pipe is outdoor, the export of tuber pipe passes through tube coupling with air supply system's entry.

in a preferred embodiment, circulating water is used as a heat exchange medium, and when the lithium bromide refrigerating unit operates, the lithium bromide refrigerating unit comprises three sets of water circulating loops which operate simultaneously, wherein the three sets of water circulating loops comprise: a heating water circulation loop, a cooling water circulation loop and a refrigerating water circulation loop; wherein, the circulation process of heating water circulation includes: firstly, a solar heat collector is utilized to heat circulating water to a set temperature, the set temperature is preferably 90 ℃, the water is conveyed to an auxiliary heat source, when the signal feedback control network detects that the temperature of the circulating water is lower than 90 ℃, the auxiliary heat source is started to further heat the circulating water to 90 ℃, then the auxiliary heat source conveys the circulating water to a heating module of a lithium bromide refrigerating unit, and the circulating water is conveyed back to the solar heat collector by the heating module after releasing heat in the heating module for continuous cycle use. The circulation process of the cooling water circulation comprises the following steps: and the cooling tower conveys cooling water to a cooling module of the lithium bromide refrigerating unit, and the cooling water absorbs heat and is conveyed back to the cooling tower by the cooling module for continuous recycling. The circulation process of the refrigeration water circulation comprises the following steps: the refrigeration module conveys low-temperature cold water to the heat exchange device, and the low-temperature cold water is conveyed back to the refrigeration module by the heat exchange device after absorbing heat to be continuously recycled.

Further, the air supply system comprises a plate heat exchanger, a humidity regulator and a fan, and the air pipe, the humidity regulator, the fan and the side wall air supply terminal are sequentially connected into an air supply channel through pipelines; the plate heat exchanger comprises a water channel and an air channel which can exchange heat with each other, a water inlet of the water channel is connected with a water outlet of a boiler of the auxiliary heat source through a pipeline, a water outlet of the water channel is connected with a water inlet of the solar heat collector through a pipeline, an air inlet of the air channel is connected with the outside, and an air outlet of the air channel is connected with an air inlet of the humidity regulator through a pipeline. The air supply system comprises two air supply channels to meet the requirements of fresh air temperature in different seasons, under the working condition in summer, the fresh air and the return air are mixed and then sent to the lithium bromide absorption refrigerating unit for heat exchange, the fresh air and the return air are processed to a set temperature and then sent to the indoor room after being subjected to wet processing to bear indoor heat and humidity loads, and the temperature is preferably 20 ℃. Under the working condition in winter, because the indoor heat load is mainly born by the low-temperature floor radiant tube network, a proper amount of fresh air is directly heated to a set temperature by the plate heat exchanger and then is sent into the room through wet treatment to meet the indoor humidity and fresh air requirements, and the temperature is preferably 25 ℃.

Preferably, the humidity regulator comprises a humidifying module and a dehumidifying module, and the humidifying module and the dehumidifying module are arranged in parallel or in series;

when the humidifying module and the dehumidifying module are arranged in parallel, inlets of the humidifying module and the dehumidifying module are connected with an outlet of the air pipe through a pipeline, and outlets of the humidifying module and the dehumidifying module are connected with an inlet of the fan through a pipeline;

when the humidification module and the dehumidification module are arranged in series, the air pipe, the dehumidification module, the humidification module and the fan are connected in sequence, or the air pipe, the humidification module, the dehumidification module and the fan are connected in sequence.

furthermore, as shown in fig. 3, the side wall air supply terminal includes a plurality of air supply devices, each air supply device includes an air supply pore plate 22 and a static pressure chamber 21, the air supply pore plates 22 are disposed in the same vertical plane, wherein the air supply pore plates 22 are provided with a plurality of air supply holes, the static pressure chamber 21 is communicated with the indoor space through the air supply holes, and an inlet of the static pressure chamber 21 is connected with an outlet of the fan through a pipeline. In a preferred embodiment, the side wall air supply terminal divides a non-bearing wall of a building into 3 pore plate subareas uniformly in an interval with the vertical height of 0.2-2 m, and each subarea independently supplies air. The air supply mode can effectively ensure the pressure stabilizing effect of the static pressure chamber 21, lead the air outlet at the orifice to be uniform, effectively reduce the indoor temperature gradient and obviously improve the thermal comfort effect of the human body.

in a preferred embodiment, the air-conditioning air supply system further comprises an air return system, referring to fig. 3, the air return system comprises a dirt concentration monitoring device 10 and a filtering device which are sequentially connected through a pipeline, an inlet of the dirt concentration monitoring device 10 is connected with the indoor through a pipeline, and an outlet of the filtering device is connected with an inlet of the air pipe through a pipeline. Preferably, the return air inlet is arranged on the side wall right facing the ventilation side wall, 11 pipelines of the return air pipe are connected below the return air inlet, the return air pipe 11 and the radiation pipe network are simultaneously pre-embedded in the floor layer, a pollutant concentration monitoring device and a return air control device are installed at the return air inlet, the device can effectively detect the formaldehyde concentration and the PM2.5 content in indoor return air, when the formaldehyde concentration and the PM2.5 content in the indoor return air are higher than 0.15mg/m3 and 100ug/m3, the proportion of the indoor return air and the exhaust air can be controlled, the indoor exhaust air is increased while the indoor return air is reduced, and indoor secondary pollution is avoided.

in a preferred embodiment, the air-conditioning blowing system further includes an exhaust system, referring to fig. 3 again, the exhaust system includes an exhaust duct 12 and a heat dissipation flow channel 13, an inlet of the exhaust duct 12 is connected to the indoor space through the dirt concentration monitoring device 10, an outlet of the exhaust duct 12 is connected to an inlet of the heat dissipation flow channel 13, and an outlet of the heat dissipation flow channel 13 is connected to the outdoor space through a pipeline. Preferably, the heat dissipation flow pipe is directly formed by an interlayer formed between the suspended ceiling and the roof, so that exhaust air can directly contact with the building maintenance structure when flowing through the heat dissipation flow pipe, the cold or heat in the building maintenance structure is more effectively taken away, and the energy consumption of the system is further reduced. When in air exhaust, indoor exhaust air is directly conveyed into an interlayer between a roof and a suspended ceiling through the exhaust pipe 12 in the building side wall, the exhaust air exchanges heat with maintenance structures such as the side wall and the roof when flowing through the exhaust pipe 12 and the heat dissipation flow channel 13, redundant cold energy and heat in the maintenance structures are taken away, further, the exhaust air heat recovery and cooling/heating of the building enclosure structure are realized, the indoor cold and heat load is reduced, and therefore the system energy consumption is effectively reduced.

Preferably, the auxiliary heat source is a boiler, an inlet of the boiler is connected with an outlet of the solar heat collector, and an outlet of the boiler is respectively connected with the lithium bromide refrigerating unit, the air supply system and the floor heating system. In winter, the boiler conveys hot water to an air supply system and a floor heating system, and the indoor temperature is improved in the form of air supply and floor heating; in summer, the boiler conveys hot water to the lithium bromide refrigerating unit, cold energy is produced through the lithium bromide refrigerating unit, and the cold energy is conveyed indoors through the air supply system, so that the indoor temperature is reduced.

in a preferred embodiment, the solar heat collector is coupled with a boiler, and circulating hot water in the system is preheated by the solar heat collector and then sent to the boiler for heating. Under the working condition of summer, the circulating hot water is sent to a lithium bromide absorption refrigerating unit for refrigeration after being heated to 90 ℃; under the working condition in winter, the circulating hot water is heated to 60 ℃ and then is sent to a low-temperature floor radiation pipe network for radiation heating. The coupling of the solar heat collector and the boiler can ensure that the system still has a stable heat source even under the condition of insufficient solar energy, and the annual effective and stable operation of the whole heating, ventilating and air conditioning system is met.

Furthermore, the floor heating system is arranged on the lower surface of the indoor floor in advance, the floor heating system comprises a radiation pipe network close to the lower surface of the indoor floor, an inlet of the radiation pipe network is connected with an outlet of the auxiliary heat source, and an outlet of the radiation pipe network is connected with an inlet of the solar heat collector; when heating in winter, the floor heating system radiates heat to the indoor space to bear the indoor cold load.

in addition, the air-conditioning air supply system driven by solar energy also comprises a building energy consumption monitoring device arranged indoors, wherein the building energy consumption monitoring device is used for monitoring the change conditions of the cold and heat loads in the residential building in real time; the building energy consumption monitoring device is electrically connected or in signal connection with the signal feedback control network and sends energy consumption data to the signal feedback control network in real time, so that the accuracy of controlling the running state of each unit by the signal feedback control network data is improved, and a user can conveniently master the energy consumption data of the air conditioning system in real time.

The operation conditions of the air-conditioning air supply system driven by solar energy in all seasons are as follows:

In summer, as shown in fig. 4, the floor heating system stops working, the lithium bromide refrigerating unit is used for generating cold water required by the system, the energy source of the lithium bromide refrigerating unit is shared by the solar heat collector and the boiler, the energy is transferred through water transfer, the water is heated to 90 ℃ and then is conveyed to the lithium bromide refrigerating unit to serve as a heat source of the lithium bromide refrigerating unit, and energy waste caused by continuous heating is avoided; when the solar heat collector can provide hot water with the temperature of 90 ℃, the boiler does not work, and when the solar heat collector cannot provide hot water with the temperature of 90 ℃, the boiler can be used for assisting in heating to enable the water temperature to reach 90 ℃. The water circulation process: the hot water flows from the solar heat collector, flows through the boiler, enters the lithium bromide refrigerating unit, transfers heat to the lithium bromide refrigerating unit, and then flows back to the solar heat collector, so that the water can be recycled to fully utilize waste heat in water, and the energy consumption is reduced. Air supply process: outdoor fresh air and filtered indoor return air are mixed, the mixture enters a humidity adjusting device after being cooled by a lithium bromide refrigerating unit, and is conveyed to a side wall air supply terminal through a fan after being dehumidified by the humidity adjusting device, and finally is conveyed indoors through the side wall air supply terminal.

During heating in winter, as shown in fig. 5, the lithium bromide refrigerating unit stops working, heating comprises two forms of floor heat radiation and indoor hot air delivery, heat is provided by a solar heat collector and a boiler, water is heated to 25 ℃ and then delivered to a radiation pipe network and a plate heat exchanger, and the situation that indoor personnel are scalded due to overhigh temperature is avoided; when the temperature of the hot water provided by the solar heat collector reaches 25 ℃, the boiler does not work, and when the temperature of the hot water provided by the solar heat collector cannot reach 25 ℃, the boiler is assisted to heat to enable the water temperature to rise to 25 ℃. The water circulation process: the water flows out of the solar heat collector, sequentially flows through the boiler and the plate heat exchanger and then flows back to the solar heat collector; or the water flows out of the solar heat collector, sequentially flows through the boiler and the radiation pipe network and then flows back to the solar heat collector; the water recycling can fully utilize the waste heat in the water and reduce the energy consumption. Air supply process: the fresh air is heated by the plate heat exchanger and then conveyed to the humidity adjusting device, is humidified by the humidity adjusting device and then conveyed to the side wall air supply terminal by the fan, and finally is conveyed indoors by the side wall air supply terminal.

when air is supplied in the transition season, as shown in fig. 6, the transition season only needs to provide enough fresh air indoors, so that only in the air supply process, the fresh air is humidified or dehumidified by the humidity adjusting device and then is conveyed to the side wall air supply terminal through the fan, and finally is conveyed indoors by the side wall air supply terminal.

It should be understood that the above description of specific embodiments of the present invention is only for the purpose of illustrating the technical lines and features of the present invention, and is intended to enable those skilled in the art to understand the contents of the present invention and to implement the present invention, but the present invention is not limited to the above specific embodiments. It is intended that all such changes and modifications as fall within the scope of the appended claims be embraced therein.