Passive house system

Abstract

The present invention provides a passive house system. The passive house system includes air-conditioning equipment, and the air-conditioning equipment includes a compressor and an indoor heat exchanger, and the compressor and the indoor heat exchanger are communicated; wherein, the indoor heat exchanger is a radiant heat exchanger, and the radiant heat exchanger is laid on the ground or the wall or the roof; the power of the compressor is 300W to 2000W. The technical solution of the present invention solves the problem that the power of the air-conditioning equipment adopted in the passive house system in the prior art is relatively large.

Description

Technical Field

[0001] The present invention relates to the technical field of energy-saving buildings, and more particularly, to a passive house system. Background Art

[0002] A passive house is a new type of energy-saving building. By adopting a building exterior wall with high heat insulation, sound insulation and strong airtightness and making full use of renewable energy, the primary energy consumed by it is less.

[0003] Since the annual heat consumption for heating and the annual heat consumption for cooling of a passive house are less than those of a conventional building, the power of the air-conditioning equipment used in the existing passive house system is relatively large. For example, the starting power of a multi-connected unit is at least about 8 kW, while the actual power demand of each household in a passive house is usually less than 2 kW, which will cause great waste. In addition, the indoor heat exchanger in the air-conditioning equipment used in the existing passive house system has disadvantages such as a large volume and poor comfort. Summary of the Invention

[0004] The main object of the present invention is to provide a passive house system to solve the problem that the power of the air-conditioning equipment used in the existing passive house system is relatively large.

[0005] To achieve the above object, the present invention provides a passive house system, including: an air-conditioning equipment, the air-conditioning equipment includes a compressor and an indoor heat exchanger, and the compressor is communicated with the indoor heat exchanger; wherein, the indoor heat exchanger is a radiant heat exchanger, and the radiant heat exchanger is laid on the ground or the wall or the roof; the power of the compressor is 300 W to 2000 W.

[0006] Further, the air-conditioning equipment further includes: a first circulation pipeline, an outdoor heat exchanger and a throttling device, the outdoor heat exchanger, the compressor, the indoor heat exchanger and the throttling device are sequentially communicated through the first circulation pipeline to form a circulation loop; a four-way valve, the four-way valve is arranged on the first circulation pipeline and is used for controlling the flow direction of the refrigerant in the first circulation pipeline; wherein, when the air-conditioning equipment is in the cooling mode, the first passage of the four-way valve is conducted, so that the refrigerant flowing out of the compressor flows into the outdoor heat exchanger through the first passage; when the air-conditioning equipment is in the heating mode, the second passage of the four-way valve is conducted, so that the refrigerant flowing out of the compressor flows into the indoor heat exchanger through the second passage.

[0007] Furthermore, the passive house system further includes a ventilation device, which includes: an air inlet pipeline having a fresh air inlet for communicating with the outside and a supply air outlet for communicating with the inside to introduce fresh outdoor air into the room through the air inlet pipeline; an air outlet pipeline having a return air inlet for communicating with the inside and an exhaust air outlet for communicating with the outside to lead the indoor return air out of the room through the air outlet pipeline; and an air treatment device, where both the air inlet pipeline and the air outlet pipeline are connected to the air treatment device to enable heat exchange between the fresh air in the air inlet pipeline and the return air in the air outlet pipeline.

[0008] Furthermore, at least a part of the air inlet pipeline is buried in the soil to enable heat exchange between the fresh air in the air inlet pipeline and the soil.

[0009] Furthermore, the air inlet pipeline includes a first sub-pipeline and a second sub-pipeline. The first sub-pipeline is connected to the air treatment device after passing through the soil; the second sub-pipeline is connected to the air treatment device and is located above the ground. The ventilation device further includes a first valve and a second valve. The first valve is arranged on the first sub-pipeline, and the second valve is arranged on the second sub-pipeline. Among them, the ventilation device has a first ventilation mode and a second ventilation mode. When the ventilation device is in the first ventilation mode, the first valve is in the open state and the second valve is in the closed state, so that the fresh air first undergoes a first heat exchange with the soil and then a second heat exchange with the return air; when the ventilation device is in the second ventilation mode, the second valve is in the open state and the first valve is in the closed state, so that the fresh air only undergoes heat exchange with the return air.

[0010] Furthermore, the passive house system further includes a solar heat collection device, which includes: a second circulation pipeline; a solar heat collector; the solar heat collector is arranged on the second circulation pipeline to transfer the heat energy converted by the solar heat collector into the heating medium in the second circulation pipeline; a liquid storage tank arranged on the second circulation pipeline for storing the heating medium; a third circulation pipeline, where the liquid storage tank and the air treatment device are connected through the third circulation pipeline to enable the heating medium in the third circulation pipeline to provide heat for heating the fresh air.

[0011] Furthermore, the air treatment device includes a dehumidification module for dehumidifying the fresh air; the passive house system further includes a solar heat collection device, which includes: a second circulation pipeline; a solar heat collector arranged on the second circulation pipeline to transfer the heat energy converted by the solar heat collector into the heating medium in the second circulation pipeline; a liquid storage tank arranged on the second circulation pipeline for storing the heating medium; a first pump body arranged on the second circulation pipeline; a third circulation pipeline, where the liquid storage tank and the dehumidification module are connected through the third circulation pipeline to enable the heating medium in the third circulation pipeline to provide heat for the regeneration of the dehumidification module; a second pump body arranged on the third circulation pipeline.

[0012] Furthermore, the passive house system includes: a user circuit terminal, which is connected to the air-conditioning equipment through a first power transmission line; the user circuit terminal is connected to the ventilation equipment through a second power transmission line; the municipal power grid is connected to the user circuit terminal through a first power supply line; a solar power generation device, which is connected to the user circuit terminal through a second power supply line; the solar power generation device is connected to the municipal power grid through a power storage line.

[0013] Furthermore, the passive house system has a first power consumption mode, a second power consumption mode, a third power consumption mode, and a fourth power consumption mode; wherein, when the passive house system is in the first power consumption mode, the second power supply line is in a connected state, and the power storage line is in a connected state, so that part of the power generated by the solar power generation device is used to supply power to the passive house system, and the other part is stored in the municipal power grid; when the passive house system is in the second power consumption mode, the second power supply line is in a connected state, so that all the power generated by the solar power generation device is used to supply power to the passive house system; when the passive house system is in the third power consumption mode, both the first power supply line and the second power supply line are in a connected state, so that the solar power generation device and the municipal power grid jointly supply power to the passive house system; when the passive house system is in the fourth power consumption mode, the first power supply line is in a connected state, so that the municipal power grid supplies power to the passive house system.

[0014] Furthermore, the passive house system further includes: a first electricity meter, which is arranged on the first power supply line; a second electricity meter, which is arranged on the second power supply line; a third electricity meter, which is arranged on the power storage line.

[0015] Applying the technical solution of the present invention, the passive house system uses the air-conditioning equipment to provide cooling and heating for the passive house. Among them, the air-conditioning equipment uses a micro-compressor with a power of 300W - 2000W to match the characteristics of the small cooling and heating load of the passive house, which is beneficial to energy conservation; at the same time, the indoor heat exchanger is a direct expansion radiation heat exchanger, and the pure radiation heat exchange enables the refrigerant to directly radiate heat exchange with the indoor air, without the energy loss of secondary heat exchange, saving a set of water systems, and at the same time, pure radiation has the advantages of no noise, small occupied space, and high comfort. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The schematic diagrams in the specification that form a part of this application are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention. In the drawings:

[0017] Figure 1 Shows a schematic structural diagram of a passive house system according to an optional embodiment of the present invention.

[0018] Among them, the above-mentioned drawings include the following reference numerals:

[0019] 10. Air conditioning equipment; 11. Compressor; 12. Indoor heat exchanger; 13. First circulation pipeline; 14. Outdoor heat exchanger; 15. Throttling device; 16. Four-way valve; 20. Ventilation equipment; 21. Air inlet pipeline; 201. First sub-pipeline; 202. Second sub-pipeline; 211. Fresh air inlet; 212. Air supply outlet; 22. Air outlet pipeline; 221. Return air inlet; 222. Exhaust air outlet; 23. Air treatment device; 24. First valve; 25. Second valve; 30. Solar heat collection device; 31. Second circulation pipeline; 32. Solar heat collector; 33. Liquid storage tank; 34. Third circulation pipeline; 35. First pump body; 36. Second pump body; 40. Solar power generation device; 41. Photovoltaic power generation panel; 42. AC-DC converter; 50. User circuit terminal; 60. First power transmission line; 70. Second power transmission line; 80. First electricity meter; 90. Second electricity meter; 100. Third electricity meter; 1. Municipal power grid. Detailed implementation manners

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and in no way limits the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0021] In order to solve the problem that the power of the air conditioning equipment used in the existing passive house system is relatively large, the present invention provides a passive house system.

[0022] As Figure 1 shown, the passive house system includes air conditioning equipment 10, and the air conditioning equipment 10 includes a compressor 11 and an indoor heat exchanger 12, and the compressor 11 and the indoor heat exchanger 12 are connected; wherein, the indoor heat exchanger 12 is a radiant heat exchanger, and the radiant heat exchanger is laid on the ground or the wall or the roof; the power of the compressor 11 is 300W to 2000W.

[0023] In this embodiment, the passive house system uses the air conditioning equipment 10 to provide cooling and heating for the passive house. Among them, the air conditioning equipment 10 uses a micro-compressor with a power of 300W to 2000W to match the characteristics of the small cooling and heating load of the passive house, which is beneficial to energy conservation; at the same time, the indoor heat exchanger 12 is a direct expansion radiant heat exchanger, and the pure radiant heat exchange enables the refrigerant and the indoor air to directly perform radiant heat exchange, without the energy loss of secondary heat exchange, saving a set of water systems. At the same time, pure radiation has the advantages of no noise, small occupied space and high comfort.

[0024] As Figure 1 shown, the air conditioning device 10 further includes a first circulation pipeline 13, an outdoor heat exchanger 14, a throttling device 15, and a four-way valve 16. Among them, the outdoor heat exchanger 14, the compressor 11, the indoor heat exchanger 12, and the throttling device 15 are sequentially connected through the first circulation pipeline 13 to form a circulation loop. The four-way valve 16 is arranged on the first circulation pipeline 13 and is used to control the flow direction of the refrigerant in the first circulation pipeline 13. Among them, when the air conditioning device 10 is in the cooling mode, the first passage of the four-way valve 16 is conducted, so that the refrigerant flowing out of the compressor 11 flows into the outdoor heat exchanger 14 through the first passage. When the air conditioning device 10 is in the heating mode, the second passage of the four-way valve 16 is conducted, so that the refrigerant flowing out of the compressor 11 flows into the indoor heat exchanger 12 through the second passage. In this way, by setting the four-way valve 16 to change the flow direction of the refrigerant, the air conditioning device 10 is in the cooling mode or the heating mode, so that the air conditioning device 10 can be used in both winter and summer.

[0025] Specifically, when the air conditioning device 10 is in the cooling mode, the high-temperature and high-pressure refrigerant discharged from the compressor first enters the outdoor heat exchanger 14 through the first passage to dissipate heat, and then enters the indoor heat exchanger 12 through the throttling device 15 for evaporation, and radiates cold to the room by radiation. The evaporated refrigerant then flows back to the compressor through the four-way valve 16 for the next cooling cycle. When the air conditioning device 10 is in the heating mode, the high-temperature and high-pressure refrigerant discharged from the compressor first enters the indoor heat exchanger 12 through the second passage to radiate heat to the room, and then enters the outdoor heat exchanger 14 through the throttling device 15 for evaporation and absorbs the heat of the outdoor air. The evaporated refrigerant then flows back to the compressor through the four-way valve 16 for the next heating cycle.

[0026] The air conditioning device 10 of the passive house system provided by the present application adopts a radiant heat exchanger, which has the advantages of not occupying indoor space and good comfort. The refrigerant directly exchanges heat with the indoor air by radiation, without energy loss of secondary heat exchange, saving a set of water systems. At the same time, pure radiation has natural convection without noise and high comfort, meeting the key conditions of the most authoritative international passive house PHI certification. The air conditioning device 10 of the passive house system provided by the present application adopts a micro-compressor with a power of 300W - 2000W, which can match the characteristics of small cooling and heating loads of the passive house system, changing the situation of wasting energy with a large horse pulling a small cart and violating the requirements of nearly zero energy consumption or even zero energy consumption of the passive house.

[0027] As Figure 1As shown, the passive house system further includes a ventilation device 20. The ventilation device 20 includes an air inlet pipeline 21, an air outlet pipeline 22, and an air treatment device 23. The air inlet pipeline 21 has a fresh air inlet 211 for communicating with the outside and a supply air outlet 212 for communicating with the inside, so as to introduce outdoor fresh air into the room through the air inlet pipeline 21; the air outlet pipeline 22 has a return air inlet 221 for communicating with the inside and an exhaust air outlet 222 for communicating with the outside, so as to lead the indoor return air out of the room through the air outlet pipeline 22; both the air inlet pipeline 21 and the air outlet pipeline 22 are connected to the air treatment device 23, so that the fresh air in the air inlet pipeline 21 exchanges heat with the return air in the air outlet pipeline 22. In this way, when the ventilation device 20 is used in winter, the fresh air exchanges heat with the return air and absorbs the heat of the return air; when the ventilation device 20 is used in summer, the fresh air exchanges heat with the return air and absorbs the cold of the return air, thereby making full use of the cold and heat of the return air and making the passive house system more energy-efficient.

[0028] Optionally, the air treatment device 23 includes a total heat exchanger. The air inlet pipeline 21 and the air outlet pipeline 22 exchange heat at the total heat exchanger, so that the fresh air can fully recover and utilize the cold or heat of the return air.

[0029] As Figure 1 shown, at least a part of the air inlet pipeline 21 is buried in the soil, so that the fresh air in the air inlet pipeline 21 exchanges heat with the soil. In this way, when the ventilation device 20 is used in winter, the fresh air exchanges heat with the soil and absorbs the heat of the soil; when the ventilation device 20 is used in summer, the fresh air exchanges heat with the soil and absorbs the cold of the soil, thereby making full use of the cold and heat of the soil and making the passive house system more energy-efficient.

[0030] The ventilation device 20 of the passive house system provided by this application introduces fresh air from the outside into the underground soil, uses the soil to pre-cool or pre-heat the outdoor fresh air, and makes full use of renewable energy. During the process of introducing fresh air into the room, the fresh air also exchanges energy with the indoor air, thereby recovering and utilizing the heat or cold of the indoor return air.

[0031] As Figure 1As shown in the figure, the air inlet pipeline 21 includes a first sub-pipeline 201 and a second sub-pipeline 202. The first sub-pipeline 201 passes through the soil and is connected to the air treatment device 23; the second sub-pipeline 202 is connected to the air treatment device 23 and is located above the ground. The ventilation device 20 further includes a first valve 24 and a second valve 25. The first valve 24 is arranged on the first sub-pipeline 201, and the second valve 25 is arranged on the second sub-pipeline 202. Among them, the ventilation device 20 has a first ventilation mode and a second ventilation mode. When the ventilation device 20 is in the first ventilation mode, the first valve 24 is in the open state, and the second valve 25 is in the closed state, so that the fresh air first exchanges heat with the soil once and then exchanges heat with the return air twice; when the ventilation device 20 is in the second ventilation mode, the second valve 25 is in the open state, and the first valve 24 is in the closed state, so that the fresh air only exchanges heat with the return air. In this way, when the ventilation device 20 is used in winter, the temperature difference between the fresh air and the soil is large. By controlling the opening and closing of the first valve 24 and the second valve 25, the ventilation device 20 is in the first ventilation mode, and the fresh air enters the room through the first sub-pipeline 201. When the fresh air passes through the part of the first sub-pipeline 201 buried in the soil, the fresh air exchanges heat with the soil and absorbs the heat of the soil; when the ventilation device 20 is used in summer, the temperature difference between the fresh air and the soil is large. By controlling the opening and closing of the first valve 24 and the second valve 25, the ventilation device 20 is in the first ventilation mode, and the fresh air enters the room through the first sub-pipeline 201. When the fresh air passes through the part of the first sub-pipeline 201 buried in the soil, the fresh air exchanges heat with the soil and absorbs the cold of the soil; when the ventilation device 20 is used in spring or autumn, the temperature difference between the fresh air and the soil is small. By controlling the opening and closing of the first valve 24 and the second valve 25, the ventilation device 20 is in the second ventilation mode, and the fresh air directly enters the room through the second sub-pipeline 202 without exchanging heat with the soil. Since the second sub-pipeline 202 does not need to pass through the soil and the path is shorter, it is beneficial to improve the air supply efficiency of the fresh air.

[0032] As Figure 1As shown, the passive house system further includes a solar heat collection device 30, which includes a second circulation pipeline 31, a solar collector 32, a liquid storage tank 33, and a third circulation pipeline 34. The solar collector 32 is arranged on the second circulation pipeline 31 to transfer the heat energy converted by the solar collector 32 to the heating working medium in the second circulation pipeline 31. The liquid storage tank 33 is arranged on the second circulation pipeline 31 and is used for storing the heating working medium. The liquid storage tank 33 and the air handling device 23 are connected through the third circulation pipeline 34, so that the heating working medium in the third circulation pipeline 34 provides heat for heating the fresh air. When the passive house system is used in winter, in order to improve the comfort of the fresh air supply and avoid the problem of indoor temperature reduction caused by introducing fresh air, it is necessary to heat the fresh air first and then send the heated fresh air into the room. In this embodiment, the solar heat collection device 30 is used to heat the fresh air, making full use of renewable energy and making the passive house system more energy-saving and environmentally friendly.

[0033] Optionally, the air handling device 23 includes a dehumidification module for dehumidifying the fresh air. In this way, when the humidity of the outdoor fresh air is high in summer, the dehumidification module can be used to dehumidify the fresh air and then send the fresh air into the room. As Figure 1 As shown, the passive house system further includes a solar heat collection device 30, which includes a second circulation pipeline 31, a solar collector 32, a liquid storage tank 33, a third circulation pipeline 34, a first pump body 35, and a second pump body 36. The solar collector 32 is arranged on the second circulation pipeline 31 to transfer the heat energy converted by the solar collector 32 to the heating working medium in the second circulation pipeline 31. The liquid storage tank 33 is arranged on the second circulation pipeline 31 and is used for storing the heating working medium. The first pump body 35 is arranged on the second circulation pipeline 31. The liquid storage tank 33 and the dehumidification module are connected through the third circulation pipeline 34, so that the heating working medium in the third circulation pipeline 34 provides heat for the regeneration of the dehumidification module. The second pump body 36 is arranged on the third circulation pipeline 34. In this way, the solar heat collection device 30 is used to provide heat for the regeneration of the dehumidification module, making full use of renewable energy and making the passive house system more energy-saving and environmentally friendly.

[0034] Optionally, when the dehumidification module of the air handling device 23 needs to be regenerated, the solar heat collection device 30 is in a startup state, and both the first pump body 35 and the second pump body 36 are in an open state.

[0035] Optionally, the ventilation device 20 uses the solar heat collection device 30 to provide heat for the regeneration of the dehumidification module. When the hot water heated by the solar heat collection device 30 is in excess, the hot water can be used to heat the fresh air, thereby further making full use of renewable energy and meeting the requirements of the passive house for the utilization rate of renewable energy.

[0036] In an optional embodiment not shown in the figure of the present application, the solar thermal collection device 30 includes a second circulation pipeline 31 and a solar thermal collector 32. The solar thermal collector 32 is arranged on the second circulation pipeline 31 to transfer the heat energy converted by the solar thermal collector 32 to the heating medium in the second circulation pipeline 31. The second circulation pipeline 31 is connected to the dehumidification module so that the heating medium in the second circulation pipeline 31 provides heat for the regeneration of the dehumidification module.

[0037] like Figure 1 As shown, the passive house system includes a user circuit terminal 50 and a solar power generation device 40, the user circuit terminal 50 and the air conditioning device 10 are connected through a first power transmission line 60; the user circuit terminal 50 and the ventilation device 20 are connected through a second power transmission line 70; the municipal power grid 1 and the user circuit terminal 50 are connected through a first power supply line, so that the user circuit terminal 50 is powered by the municipal power grid 1; the solar power generation device 40 and the user circuit terminal 50 are connected through a second power supply line, so that the user circuit terminal 50 is powered by the solar power generation device 40; the solar power generation device 40 and the municipal power grid 1 are connected through a power storage line, so that the electric energy generated by the solar power generation device 40 is stored in the municipal power grid 1. In this way, the present embodiment adopts the solar power generation device 40 and the municipal power grid 1 to jointly power the users of the passive house system. When the solar energy is insufficient, the municipal power grid 1 can be used to power the users, so as to avoid the passive house system being unable to be powered normally on rainy days or when there is insufficient sunlight or when the solar power generation device 40 fails.

[0038] The passive house system provided in the present application utilizes solar photovoltaic power generation to provide free electricity for the air-conditioning equipment 10, the ventilation equipment 20 and other electrical equipment, so that the entire passive house system is in a near-zero energy consumption state, thereby further making full use of renewable energy; the passive house system provided in the present application utilizes a solar power generation device 40 and a municipal power grid 1 in combination for power supply, so that the passive house system is stable and there is no power shortage. At the same time, when there is sufficient surplus solar power, it can be connected to the power grid, which is equivalent to that users can deposit it into the power grid or sell electricity, and free electricity can be provided the next time the municipal power grid 1 delivers electricity.

[0039] like Figure 1 As shown, the solar power generation device 40 includes a photovoltaic panel 41 and an AC / DC converter 42. The photovoltaic panel 41 and the user circuit terminal 50 are connected through a second power supply line, and the AC / DC converter 42 is arranged on the second power supply line and located between the photovoltaic panel 41 and the user circuit terminal 50, so that the photovoltaic panel 41 converts solar energy into electrical energy, and the electrical energy is converted by the AC / DC converter 42 to supply power to the user.

[0040] The photovoltaic power generation panel 41 converts solar energy into electrical energy. After the electrical energy is sent to the AC-DC converter 42 through the second power supply line for conversion, the converted current is then connected to the electrical equipment of the passive house system through the user circuit terminal 50 via the second power supply line.

[0041] As Figure 1 shown, the passive house system has a first power consumption mode, a second power consumption mode, a third power consumption mode, and a fourth power consumption mode; among them, when the passive house system is in the first power consumption mode, the second power supply line is in a connected state, and the power storage line is in a connected state, so that part of the power generated by the solar power generation device 40 supplies power to the passive house system, and the other part is stored in the municipal power grid 1; when the passive house system is in the second power consumption mode, the second power supply line is in a connected state, so that all the power generated by the solar power generation device 40 is used to supply power to the passive house system; when the passive house system is in the third power consumption mode, both the first power supply line and the second power supply line are in a connected state, so that the solar power generation device 40 and the municipal power grid 1 jointly supply power to the passive house system; when the passive house system is in the fourth power consumption mode, the first power supply line is in a connected state, so that the municipal power grid 1 supplies power to the passive house system. In this way, in this application, the solar power generation device 40 and the municipal power grid 1 cooperate to jointly supply power to the passive house system. Specifically, when the power generated by the solar power generation device 40 is sufficient, the passive house system is in the first power consumption mode, using the solar power generation device 40 to supply power to the passive house system, and at the same time, the remaining power can be stored in the municipal power grid 1, so as to make more full use of solar power generation and avoid energy waste; when the power generated by the solar power generation device 40 is just right, the passive house system is in the second power consumption mode, using the solar power generation device 40 to supply power to the passive house system, which is energy-saving and environmentally friendly; when the power generated by the solar power generation device 40 is insufficient, the passive house system is in the third power consumption mode, using the municipal power grid 1 and the solar power generation device 40 to jointly supply power to the passive house system to ensure the normal operation of the passive house system; when there is no sun or the solar power generation device 40 fails, the passive house system is in the fourth power consumption mode, using the municipal power grid 1 to supply power to the passive house system to ensure the normal operation of the passive house system; at the same time, the power stored in the municipal power grid 1 when the solar energy is sufficient can be used for deduction, further reducing the power consumption cost of the passive house system.

[0042] As Figure 1As shown, the passive house system further includes a first electricity meter 80, a second electricity meter 90, and a third electricity meter 100. The first electricity meter 80 is disposed on the first power supply line, the second electricity meter 90 is disposed on the second power supply line, and the third electricity meter 100 is disposed on the electricity storage line. In this way, the first electricity meter 80 is used to record the electricity generated by the solar power generation device 40, the second electricity meter 90 is used to record the electricity provided by the municipal power grid 1 to the passive house system, and the third electricity meter 100 is used to record the electricity stored in the municipal power grid 1. Thus, the power generation situation of the solar power generation device 40 can be analyzed based on the first electricity meter 80, and the electricity consumption cost of the passive house system can be calculated based on the second electricity meter 90 and the third electricity meter 100.

[0043] The air-conditioning equipment of the passive house system provided by the present application has the advantages of low power, no noise, and comfort, and can match the required power of the air-conditioning equipment of the passive house system, thereby avoiding equipment waste.

[0044] The passive house system provided by the present application has good economic performance, can flexibly adjust the temperature, humidity, and ventilation conditions of the indoor air, can meet the user's usage requirements, recover the cooling or heating capacity of the return air, is beneficial to energy conservation, has a small electricity purchase volume, and is economical and practical.

[0045] When the passive house system provided by the present application is in use, the solar power generation device 40 and the municipal power grid 1 are combined to supply power to the passive house system; the air-conditioning equipment 10 and the ventilation equipment 20 are combined to provide the passive house system with cold, heat, and moisture loads to meet the indoor air quality requirements of the indoor air.

[0046] Specifically, in summer, the air-conditioning equipment 10 and the ventilation equipment 20 are turned on. The air-conditioning equipment 10 provides cooling capacity for the passive house system, and the ventilation equipment 20 provides fresh air and part of the cooling capacity for the passive house system and dehumidifies. In winter, the air-conditioning equipment 10 and the ventilation equipment 20 are turned on. The air-conditioning equipment 10 provides heat for the passive house system, and the ventilation equipment 20 provides fresh air and part of the heat for the passive house system. In the transitional season, the air-conditioning equipment 10 is turned off and the ventilation equipment 20 is turned on. The ventilation equipment 20 provides fresh air and cooling and heating adjustment for the passive house system. In this way, air-conditioning cooling and heating reprocessing is not required in the transitional season, and the air-conditioning cooling and heating treatment volume can be reduced in summer and winter, effectively reducing the building fresh air energy consumption and air-conditioning energy consumption.

[0047] Due to the excellent airtightness design of the passive house system, in order to avoid problems such as excessive carbon dioxide or poisoning, the passive house system is equipped with a ventilation device 20 to meet the air quality, temperature and humidity requirements inside the passive house system, and to cool, heat or dehumidify the fresh air as needed. The ventilation device 20 provided in this application can use the soil to pre-cool or pre-heat the fresh air, which is beneficial to reducing the fresh air energy consumption of the ventilation device 20 of the passive house system; at the same time, the passive house system provided in this application uses the solar heat collection device 30 to heat the fresh air or to provide heat for the regeneration of the dehumidification module, making full use of solar energy, so as to meet the requirements of the passive house system for the utilization rate of renewable energy; in addition, the passive house system provided in this application uses the solar power generation device 40 to provide free electricity for the air conditioning device 10 and the ventilation device 20, so that the passive house system is in a near-zero energy consumption state; and by cooperating with the municipal power grid 1 and the solar power generation device 40, the reliability of power supply for the passive house system is ensured, and the passive house system can still be used on rainy days, when the sun is insufficient or in case of failure; when the electricity generated by the solar power generation device 40 is in excess, it can be stored in the municipal power grid 1 to further reduce the electricity cost.

[0048] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or their combinations.

[0049] Unless otherwise specifically stated, the relative arrangements, numerical expressions and values of the components and steps set forth in these embodiments do not limit the scope of the present invention. At the same time, it should be understood that, for the sake of convenience of description, the dimensions of the various parts shown in the drawings are not drawn in actual proportional relationship. Technologies, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the said technologies, methods and devices should be regarded as part of the authorized specification. In all the examples shown and discussed here, any specific value should be construed as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0050] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom", etc. is usually based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description. Without contrary description, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on the protection scope of the present invention; the orientation words "inside, outside" refer to the inside and outside relative to the contour of each component itself.

[0051] For ease of description, spatial relative terms such as "above", "over", "on the upper surface", "above-mentioned", etc. may be used herein to describe the spatial positional relationship of one device or feature to other devices or features as shown in the figures. It should be understood that the spatial relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is inverted, the device described as "above" or "over" other devices or structures will then be positioned "below" or "beneath" the other devices or structures. Thus, the exemplary term "above" can include both the orientations of "above" and "below". The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and corresponding interpretations of the spatial relative descriptions used herein will be made.

[0052] It should be noted that the terms "first", "second", etc. in the description, claims and above-mentioned drawings of the present application are used to distinguish similar objects and do not necessarily describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of the present application described herein can be implemented in an order different from those illustrated or described herein.

[0053] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various modifications and variations. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A passive house system, characterized in that, Comprising: An air-conditioning device (10), the air-conditioning device (10) comprising a compressor (11) and an indoor heat exchanger (12), the compressor (11) and the indoor heat exchanger (12) being in communication; Wherein, the indoor heat exchanger (12) is a radiant heat exchanger, and the radiant heat exchanger is laid on the ground or on the wall or on the ceiling; the power of the compressor (11) is 300W to 2000W; The passive house system further comprises a ventilation device (20), the ventilation device (20) comprising: An air inlet pipeline (21) for introducing outdoor fresh air into the room through the air inlet pipeline (21); An air outlet pipeline (22) for leading the indoor return air out of the room through the air outlet pipeline (22); An air treatment device (23), the air inlet pipeline (21) and the air outlet pipeline (22) are both connected to the air treatment device (23) so that the fresh air in the air inlet pipeline (21) exchanges heat with the return air in the air outlet pipeline (22); The air inlet pipeline (21) comprises a first sub-pipeline (201) and a second sub-pipeline (202), the first sub-pipeline (201) passes through the soil and is connected to the air treatment device (23); the second sub-pipeline (202) is connected to the air treatment device (23) and is located above the ground; The ventilation device (20) further comprises a first valve (24) and a second valve (25), the first valve (24) is arranged on the first sub-pipeline (201), and the second valve (25) is arranged on the second sub-pipeline (202); Wherein, the ventilation device (20) has a first ventilation mode and a second ventilation mode. When the ventilation device (20) is in the first ventilation mode, the first valve (24) is in an open state and the second valve (25) is in a closed state, so that the fresh air exchanges heat with the soil for the first time and then exchanges heat with the return air for the second time; when the ventilation device (20) is in the second ventilation mode, the second valve (25) is in an open state and the first valve (24) is in a closed state, so that the fresh air only exchanges heat with the return air.

2. The passive house system according to claim 1, characterized in that The air-conditioning device (10) further comprises: A first circulation pipeline (13), an outdoor heat exchanger (14) and a throttling device (15), the outdoor heat exchanger (14), the compressor (11), the indoor heat exchanger (12) and the throttling device (15) are sequentially connected through the first circulation pipeline (13) to form a circulation loop; A four-way valve (16), the four-way valve (16) is arranged on the first circulation pipeline (13) for controlling the flow direction of the refrigerant in the first circulation pipeline (13); Among them, when the air conditioning device (10) is in the cooling mode, the first passage of the four-way valve (16) is conducted, so that the refrigerant flowing out of the compressor (11) flows through the first passage into the outdoor heat exchanger (14); when the air conditioning device (10) is in the heating mode, the second passage of the four-way valve (16) is conducted, so that the refrigerant flowing out of the compressor (11) flows through the second passage into the indoor heat exchanger (12).

3. The passive house system according to claim 1, characterized in that, The air inlet pipeline (21) has a fresh air inlet (211) for communicating with the outside and an air supply outlet (212) for communicating with the inside, so as to introduce outdoor fresh air into the room through the air inlet pipeline (21); The air outlet pipeline (22) has a return air inlet (221) for communicating with the inside and an exhaust outlet (222) for communicating with the outside, so as to lead the indoor return air out of the room through the air outlet pipeline (22).

4. The passive house system according to claim 3, characterized in that, The passive house system further includes a solar heat collection device (30), and the solar heat collection device (30) includes: A second circulation pipeline (31); A solar heat collector (32); the solar heat collector (32) is arranged on the second circulation pipeline (31) to transfer the heat energy converted by the solar heat collector (32) into the heating medium in the second circulation pipeline (31); A liquid storage tank (33), the liquid storage tank (33) is arranged on the second circulation pipeline (31) and is used for storing the heating medium; A third circulation pipeline (34), the liquid storage tank (33) and the air handling device (23) are connected through the third circulation pipeline (34), so that the heating medium in the third circulation pipeline (34) provides heat for heating the fresh air.

5. The passive house system according to claim 3, characterized in that, The air handling device (23) includes a dehumidification module for dehumidifying the fresh air; the passive house system further includes a solar heat collection device (30), and the solar heat collection device (30) includes: A second circulation pipeline (31); A solar heat collector (32), the solar heat collector (32) is arranged on the second circulation pipeline (31) to transfer the heat energy converted by the solar heat collector (32) into the heating medium in the second circulation pipeline (31); A liquid storage tank (33), the liquid storage tank (33) is arranged on the second circulation pipeline (31) and is used for storing the heating medium; A first pump body (35), the first pump body (35) is arranged on the second circulation pipeline (31); A third circulation pipeline (34), the liquid storage tank (33) and the dehumidification module are connected through the third circulation pipeline (34), so that the heating medium in the third circulation pipeline (34) provides heat for the regeneration of the dehumidification module; A second pump body (36), the second pump body (36) is arranged on the third circulation pipeline (34).

6. The passive house system according to claim 3, characterized in that The passive house system includes: User circuit terminal (50), the user circuit terminal (50) and the air conditioning equipment (10) are connected through a first power transmission line (60); the user circuit terminal (50) and the ventilation equipment (20) are connected through a second power transmission line (70); the municipal power grid (1) and the user circuit terminal (50) are connected through a first power supply line; Solar power generation device (40), the solar power generation device (40) is connected to the user circuit terminal (50) through a second power supply line; the solar power generation device (40) is connected to the municipal power grid (1) through a power storage line.

7. The passive house system according to claim 6, characterized in that, The passive house system has a first power consumption mode, a second power consumption mode, a third power consumption mode, and a fourth power consumption mode; Wherein, when the passive house system is in the first power consumption mode, the second power supply line is in a connected state, and the power storage line is in a connected state, so that a part of the power generated by the solar power generation device (40) supplies power to the passive house system, and the other part is stored in the municipal power grid (1); When the passive house system is in the second power consumption mode, the second power supply line is in a connected state, so that all the power generated by the solar power generation device (40) is used to supply power to the passive house system; When the passive house system is in the third power consumption mode, both the first power supply line and the second power supply line are in a connected state, so that the solar power generation device (40) and the municipal power grid (1) jointly supply power to the passive house system; When the passive house system is in the fourth power consumption mode, the first power supply line is in a connected state, so that the municipal power grid (1) supplies power to the passive house system.

8. The passive house system according to claim 6, characterized in that, The passive house system further includes: A first electricity meter (80), the first electricity meter (80) is arranged on the first power supply line; A second electricity meter (90), the second electricity meter (90) is arranged on the second power supply line; A third electricity meter (100), the third electricity meter (100) is arranged on the power storage line.

Images