WO2022166056A1

WO2022166056A1 - Radiation-type cooling and heating passive house

Info

Publication number: WO2022166056A1
Application number: PCT/CN2021/098810
Authority: WO
Inventors: 沈景华; 吴捷; 陈守恭; 彭旭辉; 田雨; 李东会; 田真; 韩冬辰; 薛朝阳; 徐樑; 李晓晗; 张洁
Original assignee: 苏州大学
Priority date: 2021-02-08
Filing date: 2021-06-08
Publication date: 2022-08-11
Also published as: CN112781150A

Abstract

A radiation-type cooling and heating passive house, comprising a sealed thermal-insulation house body (10), an air supply system (20) used for inputting fresh air into the sealed thermal-insulation house body (10), an exhaust system (30) used for discharging foul air that is inside the sealed thermal-insulation house body (10), a ventilation heat-recovery system (40), an environmental-source heat exchange system (50), and a cooling and heating system.

Description

A passive house with radiant cooling and heating

technical field

The invention belongs to the technical field of house construction, and in particular relates to a passive house with radiant cooling and heating.

Background technique

In 1988, Professor Adamson of Delong University in Sweden and Dr. Feist from Germany first proposed the concept of passive house, which means that it does not rely on traditional air conditioning systems, but relies on the good thermal insulation performance and airtightness of its own outer envelope structure. properties to maintain a comfortable internal thermal environment of the building. In 1991, the first "Passive House" was built in Darmstadt, Germany. Then Dr. Feist established the "Passive House" Institute (PHI) in Darmstadt, Germany in 1996. In 2015, the German Passive Research Center further improved the certification standards for passive houses, which are divided into three levels: "Classic", "Plus" and "Premium". Germany's latest 2020 edition of the "Building Energy Law" stipulates that there are three requirements for near-zero energy buildings: 1) The energy consumption of heating, cooling, ventilation, hot water lighting, etc. of the building must be lower than 75% of the energy consumption of the building defined by the law; 2 ) Implement thermal insulation measures for buildings to reduce heating and cooling energy losses; 3) A certain proportion of heating and cooling energy consumption must be provided by renewable energy. So far, the number of passive houses in the world has grown to more than 60,000, and has formed a trend of rapid development. Since 2015, individual cities in Germany, such as Heidelberg, have begun to legislate to promote passive houses; British law stipulates that new buildings in 2016 begin to implement near-zero energy buildings; according to EU regulations, new buildings in the entire EU in 2020 must be near-zero energy consumption passive building. In China, in 2010 the first Passive House - Hamburg House was built in Shanghai. During this 10-year period, passive concepts and technologies have gradually matured from exploration in our country. Governments at all levels are increasingly accepting passive low-energy buildings. On February 27, 2015, the Hebei Provincial Department of Housing and Urban-Rural Development issued the "Energy-saving Design Standard for Passive Low-Energy Residential Buildings-(DB13(J)/T177-2015)", which is the first passive low-energy building standard in my country. On August 5, 2016, the Ministry of Housing and Urban-Rural Development approved "Passive Low Energy Buildings - Residential Buildings in Severe Cold and Cold Areas - (16J908-8)" as the National Building Standard Design Atlas, which is the first passive low energy building in my country. National icons set. By 2020, a total of 9 passive low energy technical guidelines and 14 design, testing and evaluation standards will be issued nationwide.

Because the outer envelope of the passive house has good thermal insulation performance and air tightness, the indoor air environment is basically not affected by the external environment, and the indoor air environment is easy to manage. The traditional passive house fresh air unit adopts the top-to-bottom row or top-to-bottom row mode (see Figure 1 and Figure 2), and sends fresh air at a higher speed to promote indoor air mixing, so as to achieve uniform indoor temperature. The top-to-bottom row and top-to-bottom row methods are ventilation methods based on the purpose of diluting indoor air. By feeding a certain amount of high-speed fresh air and indoor air, a dilution ventilation is formed to adjust the indoor temperature and reduce the concentration of pollutants.

In passive ultra-low energy consumption buildings, an integrated unit of fresh air is generally used for heating. Outdoor fresh air and indoor exhaust air pass through a high-efficiency heat converter to effectively recover heat energy and provide it to the fresh air, which is then preheated in winter and sent into the room. Heating through the fresh air integrated machine has a strong sense of wind, and while diluting the indoor air, it is easy to mix the old and new indoor air, which interferes with the airflow direction and is not energy-efficient.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a passive house with radiant cooling and heating, which is more comfortable and more energy-saving.

In order to achieve the above purpose, the present invention provides the following technical solutions: a passive house for radiant cooling and heating, comprising a sealed and insulated house, an air supply system for inputting fresh air into the sealed and insulated house, and the sealed and insulated house. An exhaust system, a ventilation heat recovery system, an environment source heat exchange system, and a cooling and heating system that contain turbid air inside the thermal insulation room body, the environment source heat exchange system includes a fluid conveying device for heat exchange with the natural environment, The inlet of the fluid delivery device is in fluid communication with the closed internal circulation, the fluid output from the fluid delivery device exchanges heat with the air in the sealed and insulated room and/or the fluid output from the fluid delivery device is connected to the The air in the sealed insulation room conducts heat exchange;

The cooling and heating system includes an indoor cooling and heating device that cools or heats the air in the sealed thermal insulation room to a set temperature, and the indoor cooling and heating device is a radiant cooling and heating device.

Further, the radiant cooling and heating device is the same cold and heat radiation floor or the same cold and heat radiation ceiling.

Further, the coils of the cold and heat radiation floor and the coils of the cold and heat radiation ceiling communicate with the outlet of the fluid conveying device.

Further, the fluid conveying device is a ground-source heat pump, a water-source heat pump, or an air-source heat pump cold and heat radiant floor.

Further, the air supply system includes a fresh air sending end communicated with the interior of the sealed and insulated house, the air exhaust system includes a dirty air receiving end communicated with the interior of the sealed and insulated house, and the ventilation heat recovery system It includes an air supply conveying device and an exhaust air conveying device for heat exchange, the fresh air sending end communicates with the air supply conveying device, and the dirty gas receiving end communicates with the exhaust air conveying device. The air supply conveying device and the exhaust air conveying device are pipes.

Further, the air supply system further includes an air supply fan for feeding air into the sealed thermal insulation room under positive pressure, and the air exhaust system further includes an exhaust air for extracting negative air pressure out of the sealed thermal insulation room. fan.

Further, the air supply system further includes an air filter for filtering suspended particles, a sterilizing device for sterilizing and sterilizing, a dehumidifying device for removing moisture, and a fresh air temperature adjusting device for adjusting the temperature of the air.

Further, the sealed and insulated house includes a bottom, a wall and a top, the bottom of the sealed and insulated house includes the ground and a ground insulation layer provided on the outside of the ground, and the wall of the sealed and insulated house includes a wall and a top. The wall thermal insulation layer on the outer side of the wall body, and the top of the sealed thermal insulation house body includes a roof and a roof thermal insulation layer arranged on the outer side of the roof.

Due to the application of the above-mentioned technical solutions, the present invention has the following advantages compared with the prior art: the passive house of the radiant cooling and heating disclosed by the present invention, when supplementary heat or supplementary cooling is needed in winter and summer, all use floor radiation supplementary heat or supplementary cooling The technology system, through large area uniform radiation, reduces the interference to the airflow direction, higher comfort and more energy saving.

Description of drawings

The accompanying drawings forming a part of the present application are used to provide further understanding of the present application, and the schematic embodiments and descriptions of the present application are used to explain the present application and do not constitute an improper limitation to the present application.

Fig. 1 is a schematic diagram of the top-feeding, top-discharging and exhausting of a passive house in the prior art;

Fig. 2 is the schematic diagram of the upper and lower discharge and exhaust of the passive house in the prior art;

Fig. 3 is the composition block diagram of the building in the first embodiment of the present invention;

4 is a schematic diagram of the airflow flow of the building in the first embodiment of the present invention;

FIG. 5 is a schematic diagram of the airflow flow of the building in the second embodiment of the present invention.

Among them, 10, sealed thermal insulation body; 11, ground; 12, ground thermal insulation layer; 13, wall body; 14, wall thermal insulation layer; 15, roof; 16, roof thermal insulation layer; 17, low thermal conductivity surface; 20, delivery Air system; 21. Fresh air sending end; 22. Air supply fan; 30. Exhaust system; 31. Turbid gas receiving end; 32. Exhaust fan; 40. Ventilation heat recovery system; 41. Air supply conveying device; 42, Exhaust air conveying device; 50, environmental source heat exchange system; 51, fluid conveying device; 52, closed inner circulating fluid; 61, indoor cooling and heating device; 62, fresh air cooling and heating device.

Detailed ways

The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

It should be noted that the following detailed description is exemplary and intended to provide further explanation of the application. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. It should be noted that the terminology used herein is for the purpose of describing specific embodiments only, and is not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural as well, furthermore, it is to be understood that when the terms "comprising" and/or "including" are used in this specification, it indicates that There are features, steps, operations, devices, components and/or combinations thereof. In this disclosure, terms such as "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "side", "bottom", etc. The orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only a relational word determined for the convenience of describing the structural relationship of each component or element of the present disclosure, and does not specifically refer to any component or element in the present disclosure, and should not be construed as a reference to the present disclosure. public restrictions. In the present disclosure, terms such as "fixed connection", "connected", "connected", etc. should be understood in a broad sense, indicating that it may be a fixed connection, an integral connection or a detachable connection; it may be directly connected, or through an intermediate connection. The medium is indirectly connected. For the relevant scientific research or technical personnel in the field, the specific meanings of the above terms in the present disclosure can be determined according to specific situations, and should not be construed as limitations on the present disclosure.

The following is a preferred embodiment for illustrating the present invention, but not for limiting the scope of the present invention.

Example 1

Referring to FIGS. 3 to 4 , as shown in the legends therein, a passive house for radiant cooling and heating includes a sealed and insulated house 10 , an air supply system 20 for feeding fresh air into the sealed and insulated house 10 , and a sealed and insulated house 10 . An exhaust system 30 , a ventilation heat recovery system 40 , an environment source heat exchange system 50 , and a cooling and heating system for discharging air containing turbid air inside the thermal insulation house 10 . The exchanged fluid conveying device 51, the inlet of the fluid conveying device 51 is communicated with the closed inner circulating fluid 52, the fluid output by the fluid conveying device 51 exchanges heat with the air in the sealed insulation room 10 and/or the fluid output by the fluid conveying device 51 Heat exchange with the air sent into the sealed and insulated housing body 10;

The above-mentioned cooling and heating system includes an indoor cooling and heating device 61 for cooling or heating the air in the sealed thermal insulation room 10 to a set temperature, and an indoor cooling and heating device 61 for cooling or heating the fresh air sent by the air supply system 20 to a temperature lower than The fresh air cooling and heating device 62 and the indoor cooling and heating device 61 at the set temperature are radiant cooling and heating devices.

In a preferred implementation in this embodiment, the indoor cooling and heating device 61 is a cold and heat radiation floor. In other embodiments, the indoor cooling and heating device may also be a cold and heat radiation ceiling.

In the preferred implementation of this embodiment, the coil of the cold and heat radiation floor communicates with the outlet of the fluid conveying device 51 .

In a preferred implementation of this embodiment, the above-mentioned fluid conveying device is a ground source heat pump, a water source heat pump, or an air source heat pump.

In a preferred implementation in this embodiment, the air supply system 20 includes a fresh air sending end 21 that communicates with the interior of the sealed and insulated house 10 , and the above-mentioned air exhaust system 30 includes a dirty gas receiving end 31 that communicates with the interior of the sealed and insulated house 10 . The heat recovery system 40 includes an air supply conveying device (not shown in the figure) and an exhaust air conveying device (not shown in the figure) for heat exchange. The fresh air sending end 21 communicates with the air supply conveying device, and the dirty gas receiving end 31 The exhaust conveying device is connected. The air supply conveying device and the exhaust air conveying device are pipes.

In a preferred implementation in this embodiment, the air supply system 20 further includes an air supply fan 22 for feeding the air into the sealed and insulated house 10 under positive pressure, and the air exhaust system 30 also includes a negative pressure extraction of air out of the sealed and insulated house. Exhaust fan 32 outside 10. In other embodiments, the above-mentioned air supply fan is not provided, and only the exhaust fan is provided.

In a preferred implementation in this embodiment, the air supply system 20 further includes an air filter (not shown in the figure) for filtering suspended particles in the fresh air sent by the air supply system, and for sterilizing the fresh air sent by the air supply system A sterilizing device (not shown in the figure) for sterilization and a dehumidification device (not shown in the figure) for the moisture in the fresh air sent by the outgoing air supply system.

In a preferred implementation in this embodiment, the sealed and insulated house 10 includes a bottom, a wall and a top, the bottom of the sealed and insulated house includes a ground 11 and a ground insulation layer 12 disposed outside the ground 11, and the wall of the sealed and insulated house includes a wall The body 13 and the wall insulation layer 14 provided on the outer side of the wall body 13 , and the top of the sealed insulation house body includes a roof 15 and a roof insulation layer 16 provided on the outer side of the roof 15 .

In the preferred implementation of this embodiment, a plurality of personnel gathering belts are distributed in the sealed and insulated house 10 , and the fresh air cooling and heating device 62 cools or heats the fresh air sent by the air supply system to a temperature lower than that in the sealed house 10 , the position of the fresh air sending end 21 is lower than the position of the mouth and nose of the people gathering belt, the position of the turbid air receiving end 31 is higher than the position of the mouth and nose of the people gathering belt; one or more people are arranged under one side of the gathering belt. There are two fresh air sending ends 21 and one or more fresh air sending ends 21 are arranged between two adjacent personnel gathering belts, and one or more dirty gas receiving ends 31 are arranged above or directly above the other side, so as to seal the thermal insulation room 10 The interior is divided into a first vertical cylindrical space and a second vertical cylindrical space that are alternately arranged in the horizontal direction. The personnel gathering belt is arranged in the first vertical cylindrical space, and the fresh air outlet is arranged in the second vertical cylindrical space. In the cylindrical space, the dirty gas receiving end is arranged in the first vertical cylindrical space or the second vertical cylindrical space. In other embodiments, a personnel gathering belt is distributed in the sealed and insulated house, the fresh air sending end is set on the ground or the corner or the lower end of the wall of the sealed and insulated house, and the turbid gas receiving end is set on the top of the sealed and insulated house. wall or the top of the wall.

In a preferred implementation in this embodiment, the set indoor temperature inside the room is 20°C-26°C, and the temperature of the fresh air sent from the fresh air outlet 21 is lower than the set temperature by no more than 3°C. In other embodiments, the set temperature may be other temperatures, as long as the temperature is suitable.

In a preferred implementation in this embodiment, the fresh air sending end 21 is a fiber cloth air duct. In other embodiments, a diffuser or the like may be used at the fresh air sending end.

In a preferred implementation in this embodiment, the upper surface of the indoor space of the sealed thermal insulation house 10 is a low thermal conductivity surface 17, and the thermal conductivity of the low thermal conductivity surface 17 is less than or equal to 0.1W/(mK). In other embodiments, the upper surface of the indoor space and the upper section of the side surface of the sealed and insulated house body are both low thermal conductivity surfaces.

In a preferred implementation in this embodiment, the low thermal conductivity surface 17 is a surface of a low thermal conductivity material coating, and the low thermal conductivity material coating is polystyrene particle thermal insulation mortar or aerogel thermal insulation material or inorganic fiber spray thermal insulation material. In other embodiments, the low thermal conductivity surface may be the surface of the low thermal conductivity material plate body. The low thermal conductivity material board body is cork board, thermal insulation gypsum board or glass fiber board.

In the preferred implementation of this embodiment, a plurality of personnel gathering belts are distributed in the sealed and insulated house 10 , the fresh air sending end 21 is arranged at the bottom of the sealed and insulated house 10 , and the dirty air receiving end 31 is arranged at the bottom of the sealed and insulated house 10 . top. In other embodiments, when a person gathering belt is distributed in the sealed thermal insulation house, the fresh air sending end is set on the ground or the corner or the lower end of the wall of the sealed thermal insulation house, and the dirty gas receiving end is set on the bottom of the wall. The top wall or the upper end of the wall of the sealed thermal insulation house.

A preferred implementation in this embodiment, the passive house is one of ultra-low energy buildings, near-zero energy buildings, zero energy buildings, zero carbon buildings, carbon neutral buildings, and energy-efficient buildings based on passive house technology.

In the preferred implementation of this embodiment, the air fed into the sealed and insulated house 10 is firstly distributed uniformly in the lower part, and then flows upward, encounters a heat source, is heated, flows upward slowly, and is pulled out from the upper part of the sealed and insulated house 10 . In a large office/room, in order to avoid the diffusion of hot and dirty gas in the room, choose to arrange the fresh air outlet from the bottom between the personnel gathering belts. , Do not let the hot and dirty gas on one side diffuse to the other side, through the floor heat radiation, and the heat provided by the indoor human body heat source, the cold air slowly rises and rises, and reaches the top area of the ceiling together with the hot pollution generated in the room. The ceiling top area between different human bodies is discharged outdoors, and there is almost no polluting gas in the working area, avoiding indoor cross-infection and improving indoor environmental health. At the same time, it can improve the utilization rate of fresh air and reduce the demand for fresh air, thereby reducing energy consumption. This method can use displacement ventilation in indoor winter, summer and plum rainy season (that is, the weather in southern China where dew condensation occurs in the room under natural conditions, also known as "Huangmeitian" or "Back to Nantian"), so that the fresh air and indoor hot polluted gas can be fed into the room. It will not mix and form a laminar flow, and the indoor hot dirty gas will rise to the ceiling area and be discharged into the room to avoid indoor cross-infection. In the summer cooling period, the fresh air is cooled (the temperature of the fresh air is less than 3°C lower than the room temperature) and sent in at a low speed from the bottom of the room. The fresh air slowly diffuses at the bottom of the room. During the winter heating period, the outdoor fresh air is only filtered, and the heat exchanger (the fresh air temperature is less than 3°C lower than the room temperature) is directly fed into the indoor bottom at a low wind speed and slowly, forming a cold wind lake near the bottom, coupled with the floor heat radiation, the cold air is uniform Heated slowly rising, the formation of laminar flow. The hot and turbid air exhaled by people also rises and is discharged outside the room above the room. The purpose of adding thermal insulation coating on the surface of the ceiling is to prevent the hot and dirty gas from cooling down quickly and then mixing with other air after contacting the ceiling, reducing the residence time of the hot and dirty gas in the room and avoiding indoor cross-infection. Using displacement ventilation, the turbid air does not spread laterally in the bottom area of the room, and is directly brought to the upper part of the room by the updraft, creating a comfortable and healthy environment for the work area. For the seasons with mild outdoor temperatures in spring and autumn, it is recommended to open windows for natural ventilation, which is the best way to avoid indoor cross-infection.

Embodiment 2

Referring to Fig. 5, as shown in the legend, the rest is the same as the first embodiment, the difference is that there is a personnel gathering belt distributed in the sealed thermal insulation room, and the fresh air outlet end is set on the ground or the corner of the sealed thermal insulation room or the lower end of the wall The turbid gas receiving end is arranged on the top wall or the upper end of the wall of the sealed thermal insulation room.

In this embodiment, in a small office/room, the cold air with a velocity of less than 0.2m/s is sent down from the bottom of the indoor side, and through the heat radiation from the bottom and the heat provided by the indoor human body heat source, the cold air slowly warms up and rises, and the indoor generation The hot dirt reaches the ceiling top area together, and then exits the room over the other side. There is almost no polluting gas in the working area, avoiding indoor cross-infection and improving the health of the indoor environment, which can effectively reduce the demand for fresh air volume and reduce energy consumption.

The buildings in the first and second embodiments above can control and control various factors such as indoor temperature, wind direction and wind speed, that is, the factors that affect the airflow, especially the path of turbid air, to achieve indoor airflow control, and to discharge turbid air in time, thereby avoiding. cross infection. The specific technical measures are as follows:

1. Eliminate the influence and interference of the external environment on the indoor environment, and adopt a high airtight, high thermal insulation and mechanical ventilation (fresh air) system that meets the technical requirements of the building. Ordinary buildings are easily affected by the external environment:

① Buildings with poor air tightness will generate leakage wind, which will lead to indoor air mixing;

②The external doors and windows with good thermal insulation effect are not used, and the low surface temperature of the doors and windows causes the nearby air to flow downward, and the indoor air is easy to circulate;

③ When there is no mechanical ventilation, opening the window will affect the airflow and temperature;

④ The influence of the overall temperature difference of the room on the airflow.

2. Avoid the heat dissipation of the ceiling surface and the upper wall, which will reduce the temperature of the adjacent turbid air and cause the turbid air to sink, and avoid the turbid air from self-locking in the middle layer and cannot be discharged. Use low thermal conductivity surface materials or coatings.

3. The lower part slowly sends cold air (fresh air slightly lower than room temperature) passing through the heat exchanger at a wind speed of no more than 0.2m/s. In winter, ground radiant heating is used instead of hot air to avoid turbulence and form an indoor "cold wind lake". In summer, ground radiation cooling is used to ensure a comfortable room temperature, and fresh air cooling is used to provide fresh air slightly lower than room temperature, so as to avoid turbulence and form a "cold wind lake".

4. Follow the natural law that cold air sinks and hot air rises, and adopts downward supply of cold air (fresh air) to discharge turbid air.

①In the working conditions that need to avoid cross-infection, only the fresh air is cooled, and the circulating air is not used;

② Under the conditions that need to avoid cross-infection, maintain a temperature slightly lower than room temperature and acceptable in the four seasons, and the temperature difference does not exceed 3 ℃.

5. In winter, use a large area of low-temperature heating on the floor to avoid concentrated heat sources (such as radiators) or unbalanced heating (such as wall heating on one side) interfering with indoor airflow. At the same time, it can avoid the indoor vertical temperature gradient being too large;

6. Implement grid-distributed air flow control for open large spaces, follow the airflow path of "fresh air-human body-turbid air-exhaust", and avoid the airflow direction of "human body-turbid air-human body":

① The return air outlet (air outlet) is as close as possible to the source of the turbid gas, and the shortest path is exhausted, but the short circuit between the air supply end and the air exhaust end should be avoided.

② Establish a return air outlet just above the densely populated area, and the airflow direction is as vertical as possible (return air and fresh air form a vertical direction, forming vertical airflow control) In short, principle 1: avoid "human-to-human transmission" of turbid air, and principle 2 "discharge as soon as possible" turbid.

The above is a description of the embodiments of the present invention. The above description of the disclosed embodiments enables those skilled in the art to realize or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

A passive house for radiant cooling and heating, comprising: a sealed thermal insulation house, an air supply system for inputting fresh air into the sealed thermal insulation house, and an exhaust system for discharging turbid air inside the sealed thermal insulation house. Air system, ventilation heat recovery system, environment source heat exchange system and refrigeration and heating system, the environment source heat exchange system includes a fluid conveying device for heat exchange with the natural environment, the inlet of the fluid conveying device is connected to a closed inner circulating fluid connected, the fluid output by the fluid conveying device exchanges heat with the air in the sealed and insulated room and/or the fluid output from the fluid conveying device exchanges heat with the air fed into the sealed and insulated room;

It is characterized in that the cooling and heating system includes an indoor cooling and heating device that cools or heats the air in the sealed thermal insulation room to a set temperature, and the indoor cooling and heating device is a radiant cooling and heating device. .
The passive house for radiant cooling and heating according to claim 1, wherein the radiant cooling and heating device is the same cold and heat radiation floor or the same cold and heat radiation ceiling.
The passive house of radiant cooling and heating according to claim 2, characterized in that, the coils of the cold and heat radiation floor and the coils of the cold and heat radiation ceiling communicate with the outlet of the fluid conveying device.
The passive house for radiant cooling and heating according to claim 3, wherein the fluid conveying device is a ground source heat pump, a water source heat pump or an air source heat pump.
The passive house for radiant cooling and heating according to claim 1, wherein the air supply system includes a fresh air outlet end communicating with the interior of the sealed thermal insulation house, and the exhaust system includes a The dirty gas receiving end communicated inside the thermal insulation house, the ventilation heat recovery system includes an air supply conveying device and an exhaust air conveying device for heat exchange, the fresh air sending end is communicated with the air supply conveying device, and the dirty air The receiving end communicates with the exhaust conveying device.
The passive house for radiant cooling and heating according to claim 1, wherein the air supply system further comprises an air supply fan for feeding air into the sealed thermal insulation room under positive pressure, and the exhaust air The system also includes an exhaust fan for extracting the negative pressure of air out of the sealed insulation room.
The passive house for radiant cooling and heating according to claim 1, wherein the air supply system further comprises an air filter for filtering suspended particles, a sterilizing device for sterilizing and sterilizing, and a sterilizing device for removing moisture. The dehumidifier and the fresh air temperature adjustment device for air temperature adjustment.
The passive house for radiant cooling and heating according to claim 1, characterized in that the sealed and insulated house body comprises a bottom, a wall and a top, and the bottom of the sealed and insulated house comprises the ground and is provided on the outside of the ground. The wall of the sealed thermal insulation house includes a wall and a wall thermal insulation layer arranged outside the wall, and the top of the sealed thermal insulation house includes a roof and a roof thermal insulation layer arranged on the outside of the roof.