Fresh air device integrating energy passive recovery

Abstract

The application discloses a fresh air device integrating energy passive recovery and relates to the technical field of building ventilation equipment. The fresh air device integrates energy passive recovery and relates to the technical field of building ventilation equipment. The fresh air device integrates energy passive recovery and relates to the technical field of building ventilation equipment. The fresh air device integrates energy passive recovery and relates to the technical field of building ventilation equipment. The fresh air device integrates energy passive recovery and relates to the technical field of building ventilation equipment. The fresh air device integrates energy passive recovery and relates to the technical field of building ventilation equipment. The fresh air device integrates energy passive recovery and relates to the technical field of building ventilation equipment. The fresh air device integrates energy passive recovery and relates to the technical field of building ventilation equipment. The fresh air device integrates energy passive recovery and relates to the technical field of building ventilation equipment. The fresh air device integrates energy passive recovery and relates to the technical field of building ventilation equipment. The fresh air device integrates energy passive recovery and relates to the technical field of building ventilation equipment. The fresh air device integrates energy passive recovery and relates to the technical field of building ventilation equipment. The fresh air device integrates energy passive recovery and relates to the technical field of building ventilation equipment. The fresh air device integrates energy passive recovery and relates to the technical field of building ventilation equipment. The fresh air device integrates energy passive recovery and relates to the technical field of building ventilation equipment. The fresh air device integrates energy passive recovery and relates to the technical field of building ventilation equipment. The fresh air device integrates energy passive recovery and relates to the technical field of building ventilation equipment. The fresh air device integrates energy passive recovery and relates to the technical field of building ventilation equipment. The fresh air device integrates energy passive recovery and relates to the technical field of building ventilation equipment. The fresh air device integrates energy passive recovery and relates to the technical field of building ventilation equipment. The fresh air device integrates energy passive recovery and relates to the technical field of building ventilation equipment. The fresh air device integrates energy passive recovery and relates to the technical field of building ventilation equipment. The fresh air device integrates energy passive recovery and relates to the technical field of building ventilation equipment. The fresh air device integrates energy passive recovery and relates to the technical field of building ventilation equipment. The fresh air device integrates energy passive recovery and relates to the technical field of building ventilation equipment. The fresh air device integrates energy passive recovery and

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of building ventilation equipment, in particular to a fresh air device integrating passive energy recovery. BACKGROUND

[0002] At present, the building fresh air system does not fully utilize natural energy, has high energy consumption, and cannot realize energy recovery and utilization combining the fresh air system and natural energy, resulting in energy waste. Therefore, the present application provides a fresh air device integrating passive energy recovery. SUMMARY

[0003] The present application aims to provide a fresh air device integrating passive energy recovery, which efficiently utilizes the energy in the deep soil by using heat exchange pipes, efficiently recovers the energy in the fresh air unit, accelerates the heat transfer between the indoor and ventilation cavities, rapidly adjusts the indoor temperature without power, uses the recovered energy in the building, efficiently reduces energy consumption, reduces carbon emissions, and improves indoor air quality.

[0004] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a fresh air device integrating passive energy recovery, comprising:

[0005] A building main body, which comprises an outer wall, a glass curtain wall, and a ventilation roof, a wall ventilation cavity is formed between the outer wall and the glass curtain wall, a roof ventilation cavity is formed in the ventilation roof, and a gravity heat pipe is arranged in the ventilation roof;

[0006] A horizontal fresh air unit, which is arranged through the outer wall, the glass curtain wall, and the ventilation cavity, and is used for realizing heat exchange ventilation between the inside and outside of the building main body through the indoor and outdoor temperature difference;

[0007] A tunnel fresh air unit, which is arranged at the bottom of the building main body, and is used for realizing heat exchange ventilation between the inside and outside of the building main body through geothermal energy;

[0008] An exhaust unit, which is installed on the roof and penetrates the roof ventilation cavity, and is used for exhausting the air in the building main body.

[0009] Further, the horizontal fresh air unit comprises a horizontal air inlet pipe, which penetrates the outer wall, the glass curtain wall, and the ventilation cavity horizontally, is provided with an air inlet assembly at one end outside and is provided with a fresh air exhaust port at one end inside, is provided with a horizontal exhaust pipe on the side wall, is provided with a heat exchange pipe between the horizontal air inlet pipe and the horizontal exhaust pipe, is provided with a turbid air inlet port at one end of the horizontal exhaust pipe away from the fresh air exhaust port, and is connected with a vertical exhaust pipe at the other end of the horizontal exhaust pipe, the vertical exhaust pipe penetrates the building main body, and the top end penetrates the roof ventilation cavity.

[0010] Further, the glass curtain wall is provided with a plurality of glass curtain wall air inlets on the side wall, and a glass curtain wall louver is arranged in the glass curtain wall air inlet; a ventilation cavity louver is arranged in the wall ventilation cavity, and the ventilation cavity louver is arranged between floors.

[0011] Further, the air inlet assembly comprises a first air inlet louver arranged at the end of the horizontal air inlet pipe, and a second air inlet louver arranged on the side wall of the horizontal air inlet pipe, and the second air inlet louver is arranged in the wall ventilation cavity.

[0012] The inside of the horizontal air inlet pipe is provided with a filter layer, and a sterilization layer is arranged on the side wall of the filter layer.

[0013] Further, the outer wall is sequentially provided with a first finish layer, a first leveling layer, a structural layer, a second leveling layer, a structural insulation layer, a third leveling layer, and a second finish layer from the indoor to the outdoor, and a plurality of summer gravity heat pipes and winter gravity heat pipes are arranged in the inner part of the outer wall, and both are arranged at intervals along the outer wall.

[0014] The summer gravity heat pipe is arranged obliquely, and the indoor end is low and the outdoor end is high, and the indoor part is at the junction of the first finish layer and the first leveling layer, and the outdoor part is in contact with the air in the wall ventilation cavity.

[0015] The winter gravity heat pipe is arranged obliquely, and the indoor end is high and the outdoor end is low, and the indoor part is at the junction of the first finish layer and the first leveling layer, and the outdoor part is in contact with the air in the wall ventilation cavity.

[0016] Further, an adiabatic section is arranged at the central position of the gravity heat pipe, a ball valve switch is arranged at the position of the adiabatic section, a condensation section is arranged at one end of the gravity heat pipe, and an evaporation section and a liquid working medium are arranged at the other end.

[0017] An insulation section is arranged at the central position of the heat exchange pipe, a heat preservation layer is arranged on the outer surface of the insulation section, an evaporation section is arranged at one end of the heat exchange pipe, and a condensation section is arranged at the other end, and a wick is arranged on the side wall of the heat exchange pipe.

[0018] Further, the tunnel fresh air unit comprises a tunnel air inlet pipe installed underground, a heat exchange pipe is arranged between the tunnel air inlet pipe and the soil, and the other end of the tunnel air inlet pipe extends to each floor of the building main body, and a tunnel air outlet is arranged in the part extending to the indoor for each floor.

[0019] The building main body is provided with an energy storage space at the bottom, the energy storage space is underground, and a heat exchange pipe is arranged between the energy storage space and the tunnel air inlet pipe.

[0020] Further, the exhaust unit comprises an air outlet pipe installed on the roof, a top end of the air outlet pipe is rotationally connected with an eccentric part, a top end of the eccentric part is provided with an exhaust port, and the exhaust port is horizontally oriented.

[0021] Further, the eccentric part is integrally provided in a square shape, an inner cavity is arranged on a side wall of the eccentric part which is consistent with the orientation of the exhaust port, and an inner wall of the inner cavity is provided in an inclined arc surface.

[0022] An inner wall of the exhaust port is provided with a protective net.

[0023] Further, the exhaust unit comprises exhaust channels arranged on both sides of the ridge of the ventilated roof, the exhaust channels are in communication with the roof ventilation cavity, a first electric louver is installed on the exhaust channel, and a wind pressure sensor is installed on the first electric louver.

[0024] The present application has at least the following advantages:

[0025] (1) The present application makes full use of the soil geothermal energy, and efficiently reduces the energy consumption in the operation of the building. In winter, the heat exchange pipe rapidly absorbs the soil heat, heats the tunnel air, and provides warm and clean natural fresh air for the indoor space of the building. In summer, the heat exchange pipe rapidly absorbs the cold energy of the soil, and makes the fresh air entering the indoor space of the building cool and clean. The present application provides a comfortable living and working environment for human beings, effectively improves the quality and efficiency of the tunnel air, and efficiently reduces the building load.

[0026] (2) In winter, the wall ventilation cavity and the roof ventilation cavity of the south facade of the building main body store a large amount of solar radiation heat due to the greenhouse effect, and the gravity heat pipe absorbs the heat in the ventilation cavity and rapidly transmits it to the indoor space. In summer, the second air inlet louver in the ventilation cavity is closed to avoid the transmission of outdoor hot air to the indoor space, the gravity heat pipe absorbs heat in the indoor space and dissipates heat in the ventilation cavity, and the air carries away the heat in the ventilation cavity, thereby efficiently reducing the indoor temperature, reducing the cooling load in summer, and reducing the building energy consumption.

[0027] (3) The present application efficiently recovers the energy of the horizontal exhaust pipe through the heat exchange pipe, and uses the energy to heat or cool the fresh air in the horizontal air inlet pipe, thereby efficiently realizing passive recovery of energy.

[0028] (4) The present application uses the heat exchange pipe to efficiently utilize the heat (cooling) storage of the soil (tunnel air) and the building envelope (wall, etc.), and fully utilizes natural resources.

[0029] (5) The present application recovers the energy of the vertical exhaust pipe to heat or cool the air in the air inlet pipe.

[0030] (6) The present application reduces the power equipment compared with the traditional fresh air system, has a simple structure, and can provide a quiet, comfortable and safe space for the user.

[0031] (7) The application can realize the coordinated work or mode switching of multiple modes by controlling the regulating heat exchange pipe or gravity heat pipe switch valve, glass curtain wall shutter, first air inlet shutter, second air inlet shutter, etc., has the characteristics of efficient regulation, and further improves the practicality of the device.

[0032] Of course, implementing any product of the application does not necessarily require all the advantages described above. BRIEF DESCRIPTION OF DRAWINGS

[0033] Figure 1 It is a three-dimensional schematic diagram of the first perspective of the overall structure of the first embodiment of the application.

[0034] Figure 2 It is a three-dimensional schematic diagram of the first perspective of the overall structure of the second embodiment of the application.

[0035] Figure 3 It is a structural schematic diagram of the horizontal fresh air unit of the application.

[0036] Figure 4 It is a working principle diagram of the horizontal fresh air unit structure in winter of the application.

[0037] Figure 5 It is a working principle diagram of the horizontal fresh air unit structure in summer of the application.

[0038] Figure 6 is a schematic diagram of the opening and closing state of the glass curtain wall and ventilation cavity shutter of the application (working mode 1: 6-a is in summer, 6-b is in winter; working mode 2: 6-c is in winter, 6-d is in summer);

[0039] Figure 7 It is a working principle schematic diagram of the tunnel fresh air unit in winter of the application.

[0040] Figure 8 It is a working principle schematic diagram of the tunnel fresh air unit in summer of the application.

[0041] Figure 9 It is a schematic diagram of the summer gravity heat pipe in the wall position of the application.

[0042] Figure 10 It is a schematic diagram of the winter gravity heat pipe in the wall position of the application.

[0043] Figure 11 It is a working principle schematic diagram of the gravity heat pipe in the application.

[0044] Figure 12 It is a working principle schematic diagram of the heat exchange pipe in the application.

[0045] Figure 13 It is a three-dimensional schematic diagram of the exhaust unit described in the first embodiment of the application.

[0046] Reference signs:

[0047] 1, building main body; 11, outer wall; 111, first finishing layer; 112, first leveling layer; 113, structural layer; 114, second leveling layer; 115, structural insulation layer; 116, third leveling layer; 117, second finishing layer; 12, glass curtain wall; 13, ventilated roof; 14, wall ventilation cavity; 15, roof ventilation cavity; 16, gravity heat pipe; 161, heat insulation section; 162, ball valve switch; 163, condensation section; 164, gas working medium; 165, evaporation section; 166, liquid working medium; 17, glass curtain wall air inlet; 18, glass curtain wall shutter; 19, ventilation cavity shutter; 2, horizontal fresh air unit; 21, horizontal air inlet pipe; 22, air inlet assembly; 221, first air inlet shutter; 222, second air inlet shutter; 23, fresh air outlet; 24, horizontal air outlet pipe; 25, heat exchange pipe; 251, insulation section; 252, insulation layer; 253, evaporation section; 254, condensation section; 255, liquid absorbing core; 26, turbid air inlet; 27, vertical air outlet pipe; 3, tunnel fresh air unit; 31, tunnel air inlet pipe; 32, tunnel air outlet; 33, energy storage space; 4, air outlet unit; 41, air outlet pipe; 42, eccentric part; 43, air outlet; 44, air outlet channel; 45, first electric shutter. DETAILED DESCRIPTION

[0048] The technical solutions in the embodiments of the present disclosure will be described clearly and completely below in combination with the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present disclosure.

[0049] Embodiment one:

[0050] Please refer to Figures 1-13 The present disclosure provides a technical solution: a fresh air device integrating passive energy recovery, comprising:

[0051] The building main body 1 comprises an outer wall 11, a glass curtain wall 12, and a ventilated roof 13. The wall ventilation cavity 14 is formed between the outer wall 11 and the glass curtain wall 12. The roof ventilation cavity 15 is formed in the ventilated roof 13. The gravity heat pipe 16 is arranged in the ventilated roof 13.

[0052] The horizontal fresh air unit 2 penetrates through the outer wall 11, the glass curtain wall 12, and the ventilation cavity. The horizontal fresh air unit 2 is used to realize heat exchange ventilation in and out of the building main body 1 through the indoor and outdoor temperature difference.

[0053] The underground fresh air unit 3 is arranged at the bottom of the building main body 1, and is used for realizing heat exchange ventilation in and out of the building main body 1 through geothermal energy.

[0054] The exhaust air unit 4 is installed on the roof and penetrates the roof ventilation cavity 15, and is used for exhausting air in the building main body 1.

[0055] It should be noted that the top of the ventilation roof 13 can be coated with a heat-absorbing coating or provided with a solar cell panel, so as to absorb solar radiation energy and convert it into heat and store it in the roof ventilation cavity 15.

[0056] Further, in order to facilitate the description and distinction of the use principle of the gravity heat pipe 16 in different seasons, the gravity heat pipe 16 is described as a summer gravity heat pipe 16 in summer and a winter gravity heat pipe 16 in winter, and the summer working gravity heat pipe and the winter working gravity heat pipe are different heat pipes. Since the evaporation area is the low part of the heat pipe and the condensation area is the high part of the heat pipe, the summer gravity heat pipe and the winter gravity heat pipe are arranged in different ways. When the summer gravity heat pipe works, the switch of the winter gravity heat pipe is closed (to prevent heat from entering the room from the ventilation cavity); when the winter gravity heat pipe works, the switch of the summer gravity heat pipe is closed (to prevent heat from flowing from the room to the outside).

[0057] According to the technical scheme of the embodiment, as shown in Figure 1 and Figure 3 The horizontal fresh air unit 2 includes a horizontal air inlet pipe 21 which horizontally penetrates the outer wall 11, the glass curtain wall 12 and the ventilation cavity. The horizontal air inlet pipe 21 is provided with an air inlet assembly 22 at one end outside the room, so as to facilitate the outdoor air to enter the horizontal air inlet pipe 21. The horizontal air inlet pipe 21 is provided with a fresh air exhaust port 23 at one end inside the room, so as to facilitate the fresh air to be delivered to the room. The side wall of the horizontal air inlet pipe 21 is provided with a horizontal exhaust air pipe 24. The horizontal air inlet pipe 21 and the horizontal exhaust air pipe 24 are provided with a heat exchange pipe 25 therebetween. The horizontal exhaust air pipe 24 is provided with a turbid air inlet port 26 at one end away from the fresh air exhaust port 23. The other end of the horizontal exhaust air pipe 24 is connected with a vertical exhaust air pipe 27 which penetrates the building main body 1 and is in communication with the roof ventilation cavity 15 at the top.

[0058] Further, the air inlet assembly 22 comprises a first air inlet louver 221 arranged at the end of the horizontal air inlet pipe 21, and a second air inlet louver 222 arranged on the sidewall of the horizontal air inlet pipe 21 and located in the wall ventilation cavity 14. The first air inlet louver 221 and the second air inlet louver 222 are both electric louver. When the first air inlet louver 221 is opened, outdoor fresh air can enter the indoor. When the second air inlet louver 222 is opened, air in the wall ventilation cavity 14 can enter the indoor. It should be noted that the inside of the horizontal air inlet pipe 21 is provided with a filter layer, and the sidewall of the filter layer is provided with a sterilization layer, which is preferably an activated carbon adsorption layer. The filter layer is preferably a HEPA filter. When fresh air enters the horizontal air inlet pipe 21, the filter layer and the sterilization layer can be used to purify the air to prevent polluted air from entering the indoor.

[0059] In some embodiments, the horizontal air inlet pipe 21, the horizontal air outlet pipe 24 and the vertical air outlet pipe 27 can be round pipes or square pipes. In the present embodiment, the horizontal air inlet pipe 21, the horizontal air outlet pipe 24 and the vertical air outlet pipe 27 are all square pipes. The square pipes are used to facilitate the installation of the heat exchange pipe 25, and avoid the need for insulation treatment of the part of the heat exchange pipe 25 located between the pipes when round pipes are used.

[0060] Specifically, as shown in Figure 4 the first air inlet louver 221 of the air inlet assembly 22 is opened in winter, and outdoor fresh air enters the horizontal air inlet pipe 21 through the clean filtering of the filter layer and the sterilization layer. At this time, the warm and polluted air in the indoor also enters the horizontal air outlet pipe 24 through the turbid air inlet 26. Since the outdoor fresh air temperature is low in winter and the indoor turbid air temperature is high, the heat exchange pipe 25 exchanges heat between the turbid air and the fresh air, so that the warm and clean fresh air enters the indoor through the fresh air outlet 23, brings fresh air to the indoor, and improves the indoor environment. Then the polluted gas enters the ventilation roof 13 through the vertical air outlet pipe 27, and is finally discharged to the outdoor through the air outlet unit 4.

[0061] As shown in Figure 5 the first air inlet louver 221 of the air inlet assembly 22 is opened in summer, and outdoor fresh air enters the horizontal air inlet pipe 21 through the clean filtering of the filter layer and the sterilization layer. At this time, the cool and polluted air in the indoor also enters the horizontal air outlet pipe 24 through the turbid air inlet 26. Since the outdoor fresh air temperature is high in summer and the indoor temperature is low, the heat exchange pipe 25 exchanges heat between the turbid air and the fresh air, so that the cool and clean fresh air enters the indoor through the fresh air outlet 23, reduces the indoor temperature, and improves the indoor air quality. Then the polluted gas enters the ventilation roof 13 through the vertical air outlet pipe 27, and is finally discharged to the outdoor through the air outlet unit 4.

[0062] Regarding the technical solution of this embodiment, as shown in Figure 6, multiple glass curtain wall air inlets 17 are provided on the side wall of the glass curtain wall 12, and glass curtain wall louvers 18 are provided inside the glass curtain wall air inlets 17. Ventilation cavity louvers 19 are provided inside the wall ventilation cavity 14, and the ventilation cavity louvers 19 are located between floors. It should be noted that both the glass curtain wall louvers 18 and the ventilation cavity louvers 19 are electric louvers.

[0063] Specifically, the overall design of the cavity ventilation chamber has two working modes:

[0064] Working Mode 1:

[0065] In winter, such as Figure 6-b As shown, with the air inlet closed, due to the greenhouse effect, the wall ventilation cavity 14 and the roof ventilation cavity 15 will receive a large amount of solar radiation heat. Due to air flow, a natural insulation layer will form on the wall and roof, such as... Figure 10 As shown, at this time, the winter gravity heat pipe 16 in the exterior wall 11 will absorb the heat from the wall ventilation cavity 14 and release it into the room to further heat the indoor air. At this time, the summer gravity heat pipe 16 is in the closed state.

[0066] In summer, such as Figure 6-a As shown, the air inlet is open. At this time, the summer gravity heat pipe 16 in the exterior wall 11 absorbs indoor heat and releases it into the wall ventilation cavity 14, such as... Figure 9 As shown, at the same time, the gravity heat pipe 16 in the ventilated roof 13 absorbs the heat in the room and releases it into the roof ventilation cavity 15. At this time, the air inlet 17 of the glass curtain wall on each floor remains open. Due to thermal pressure ventilation, air enters the wall ventilation cavity 14 and the roof ventilation cavity 15 from the air inlet 17 of the glass curtain wall, taking away the heat inside. The polluted gas discharged from the vertical exhaust pipe 27 is taken to the outside through the exhaust unit 4. At this time, the gravity heat pipe 16 is closed in winter.

[0067] Working Mode 2:

[0068] In winter, such as Figure 6-c As shown, in winter, the glass curtain wall louvers 18 at this floor are opened, and the second air intake louver 222 of the air intake component 22 located in the wall ventilation cavity 14 is opened. At this time, air enters the room through the horizontal air intake pipe 21 at the ceiling of this floor, which plays the role of fresh air exchange and heating. At this time, the ventilation cavity louvers 19 between floors are closed to prevent energy loss due to thermal pressure ventilation. At this time, the wall ventilation cavity 14 and the roof ventilation cavity 15 store a large amount of solar radiation heat due to the greenhouse effect, which is transferred to the room through the winter gravity heat pipe 16, which facilitates efficient heating of the indoor air.

[0069] In summer, such as Figure 6-dAs shown, the glass curtain wall louvers 18 are opened, the ventilation cavity louvers 19 in the wall ventilation cavity 14 and the roof ventilation cavity 15 are opened, the first air inlet louvers 221 in the air inlet assembly 22 are opened, and the second air inlet louvers 222 are closed. At this time, outdoor fresh air enters the indoor through the horizontal air inlet pipe 21. At this time, the summer gravity heat pipe 16 absorbs heat in the indoor and dissipates heat in the wall ventilation cavity 14 and the roof ventilation cavity 15. The air entering from the glass curtain wall louvers 18 is taken out of the cavity by the heat pressure ventilation and taken to the outdoor by the exhaust unit 4, thereby efficiently reducing the indoor temperature and reducing the summer cooling load.

[0070] According to the technical scheme of the embodiment, the outer wall 11 is sequentially provided with a first finish layer 111, a first leveling layer 112, a structural layer 113, a second leveling layer 114, a structural insulation layer 115, a third leveling layer 116, and a second finish layer 117 from the indoor to the outdoor. The inner part of the outer wall 11 is respectively provided with a plurality of summer gravity heat pipes 16 and winter gravity heat pipes 16, and both are arranged in the outer wall 11. The heat pipe of the ventilated roof 13 is a summer working heat pipe, and the winter working heat pipe and the summer working heat pipe are staggered. It needs to be further explained that the winter working heat pipe is arranged in the south outer wall 11 of the building main body 1, and the summer working heat pipe is arranged in the south and north outer walls 11 of the building main body 1 and the ventilated roof 13 (in this embodiment, the outer wall 11 facing the south direction is described as the south outer wall, and the outer wall 11 facing the north direction is described as the north outer wall).

[0071] Further, as shown in Figure 11 The heat pipe 16 is provided with an adiabatic section 161 at the center position inside, the adiabatic section 161 uses a low thermal conductivity material such as PPR, and the adiabatic section 161 is provided with a ball valve switch 162 at the position. The ball valve switch 162 can be electrically connected with an external controller to realize the control of the ball valve switch 162. One end of the gravity heat pipe 16 is provided with a condensation section 163, and the other end is provided with an evaporation section 165 and a liquid working medium 166. In actual use, the liquid working medium 166 evaporates to form a gas working medium 164.

[0072] Specifically, as shown in Figure 9As shown, the summer gravity heat pipe 16 is arranged in an inclined manner, with the indoor end being lower and the outdoor end being higher, and the indoor part being located at the joint of the first finishing layer 111 and the first leveling layer 112, and the outdoor part being in contact with the air in the wall ventilation cavity 14. In summer, the ball valve switch 162 of the summer gravity heat pipe 16 is opened, and the liquid working medium 166 in the indoor part of the summer gravity heat pipe 16 is evaporated and vaporized to form a gas working medium 164 (i.e., steam) in the evaporation section 165, while absorbing a large amount of latent heat of vaporization, thereby reducing the indoor temperature. The steam quickly flows to the condensation section 163 under a small pressure difference, and condenses on the inner wall of the condensation section 163, releasing a large amount of latent heat of vaporization in the wall ventilation cavity 14, thereby discharging heat to the wall ventilation cavity 14. The condensed liquid working medium 166 flows to the evaporation section 165 along the pipe wall under the action of gravity, and continuously circulates. Heat is transferred from the indoor environment to the wall ventilation cavity 14 and the roof ventilation cavity 15, and then to the outdoor environment by thermal pressure ventilation.

[0073] As shown in FIG. 1, Figure 10 As shown, the winter gravity heat pipe 16 is arranged in an inclined manner, with the indoor end being higher and the outdoor end being lower, and the indoor part being located at the joint of the first finishing layer 111 and the first leveling layer 112, and the outdoor part being in contact with the air in the wall ventilation cavity 14. In winter, the ball valve switch 162 of the winter gravity heat pipe 16 is opened, and the liquid working medium 166 in the air gap heat pipe part is evaporated and vaporized to form a gas working medium 164 (i.e., steam) in the evaporation section 165, while absorbing a large amount of latent heat of vaporization, thereby improving the indoor environmental temperature. The steam absorbs a large amount of heat from the air cavity, and quickly flows to the condensation section 163 under a small pressure difference. The steam condenses on the inner wall of the condensation section 163, releasing a large amount of latent heat of vaporization in the first finishing layer 111 of the outer wall 11, thereby improving the indoor environmental temperature. The condensed liquid working medium 166 flows to the evaporation section 165 along the pipe wall under the action of gravity, and continuously circulates. Heat is transferred from the wall ventilation cavity 14 and the roof ventilation cavity 15 to the indoor environment, thereby rapidly improving the indoor environmental temperature.

[0074] According to the technical scheme of the embodiment, the tunnel fresh air unit 3 includes a tunnel air inlet pipe 31 installed in the ground, and a heat exchange pipe 25 is arranged between the tunnel air inlet pipe 31 and the soil. The other end of the tunnel air inlet pipe 31 extends to each floor of the building main body 1, and the part extending to the indoor environment is provided with a tunnel air outlet 32 for each floor.

[0075] The building main body 1 is provided with an energy storage space 33 at the bottom, and the energy storage space 33 is located underground. The energy storage space 33 and the tunnel air inlet pipe 31 are also provided with a heat exchange pipe 25.

[0076] It should be noted that, as Figure 12As shown, the heat exchange tube 25 is provided with an insulation section 251 at the center of the inside, the outer surface of the insulation section 251 is provided with a heat preservation layer 252, one end of the heat exchange tube 25 is provided with an evaporation section 253, the other end is provided with a condensation section 254, and the sidewall of the heat exchange tube 25 is provided with a liquid absorption core 255.

[0077] Further, the working liquid of the heat exchange tube 25 includes water, ammonia, inert gas, and organic liquid.

[0078] Further, different tube sections can be adjusted for heat exchange according to design requirements, or different heating areas or cooling areas can be provided to meet the heat transfer requirements in the heat exchange process.

[0079] Energy equation of the evaporation section 253 of the heat exchange tube 25:

[0080]

[0081] Since the gas phase density of the working medium is negligible relative to the liquid phase density, the energy equation can be written as:

[0082]

[0083] Energy equation of the condensation section 254 of the heat exchange tube 25:

[0084]

[0085] The heat flow Q transferred by the heat exchange tube 25 is:

[0086] Q = (T1-T V ) / R e = (T V -T2) / R C

[0087] The length l of the heat zone and the average temperature T aw of the heat zone are functions of:

[0088] 1 = e (-ht / C)t / (T aw -T a )∫Q*t / Ce (ht / c) dt + (L e + L a )(T aw,i -T a ) / (T aw -T a )e [-h(t-ti) / C] ;

[0089] Specifically, as Figure 7As shown, in winter, when the underground air intake duct 31 is opened, outdoor fresh air enters the underground through the underground air intake duct 31. At this time, the evaporation section 253 of the heat exchange tube 25 is located in the soil, and the condensation section 254 is located in the pipe. In the evaporation section 253, the liquid in the capillary evaporates rapidly. The vapor flows to the other end under a small pressure difference and releases heat, then condenses back into liquid. The liquid then flows back to the evaporation section 253 along the porous material by the action of capillary force. This cycle continues, and heat flows from the evaporation section 253 to the condensation section 254, that is, from the soil to the underground air intake duct 31. The geothermal energy is used to heat the internal fresh air. Then the heated underground fresh air flows to each floor and enters each floor and room through the underground exhaust vent 32.

[0090] like Figure 8 As shown, in summer, when the underground air intake duct 31 is opened, outdoor fresh air enters the underground through the underground air intake duct 31. At this time, the evaporation section 253 of the heat exchange tube 25 is located in the duct, and the condensation section 254 is located in the soil. In the evaporation section 253, the liquid in the capillary tube evaporates rapidly. The vapor flows to the other end under a small pressure difference and releases heat, then condenses back into liquid. The liquid then flows back to the evaporation section 253 along the porous material by the action of capillary force. This cycle continues, and heat flows from the evaporation section 253 to the condensation section 254, that is, from the underground air intake duct 31 into the soil, cooling the fresh air. The cooled underground fresh air flows to each floor through the underground exhaust vent 32, entering each floor and room.

[0091] When the temperature reaches a suitable level and there is no need for excessive hot / cold fresh air from the duct, the energy is stored in the energy storage space 33 through the heat exchange pipe 25. When heat / cold energy is needed, the energy is efficiently transferred to the pipeline through the heat exchange pipe 25.

[0092] Regarding the technical solution of this embodiment, such as Figure 13 As shown, the exhaust unit 4 includes an exhaust duct 41 installed on the roof. An eccentric member 42 is rotatably connected to the top of the exhaust duct 41. An exhaust port 43 is opened at the top of the eccentric member 42 and is set to a horizontal orientation. Under the heat action of the heat-absorbing coating / solar panel on the roof and the ridge, the exhaust gas rises rapidly, is discharged into the exhaust duct 41 through the roof ventilation cavity 15, and is discharged outdoors through the exhaust port 43.

[0093] Furthermore, the eccentric component 42 is generally square, and an inner cavity is provided on the side wall of the eccentric component 42 and the exhaust port 43 facing the same direction. The inner wall of the inner cavity is set as an inclined arc surface. A protective net is provided on the inner wall of the exhaust port 43. When the wind blows from the direction of the exhaust port 43, the airflow will blow into the inner cavity and blow to one side along the inclined arc surface, thereby driving the eccentric component 42 and the exhaust port 43 to rotate on the air outlet duct 41, so that the exhaust port 43 is in a negative pressure zone, preventing wind from entering from the exhaust port 43.

[0094] Example 2:

[0095] like Figure 2 As shown, the fundamental difference between Embodiment 2 and Embodiment 1 is that the exhaust unit 4 includes exhaust ducts 44 located on the north and south sides of the ridge of the ventilated roof 13. The exhaust ducts 44 are connected to the roof ventilation cavity 15. A first motorized louver 45 is installed on the exhaust duct 44, and a wind pressure sensor is installed on the first motorized louver 45. When the wind pressure on either the north or south side is positive, the first motorized louver 45 on the positive pressure side is closed to prevent wind from entering the exhaust duct. When the wind pressure on either the north or south side is negative, the first motorized louver 45 on the negative pressure side is opened, allowing the polluted gas to be discharged outdoors.

[0096] In summary, this invention utilizes heat exchange tube 25 to efficiently utilize energy deep in the soil and efficiently recover energy from the horizontal fresh air unit 2, accelerating heat transfer between the indoor space and the ventilation cavity, rapidly regulating indoor temperature without power, and simultaneously using the recovered energy in the building, effectively reducing energy consumption, lowering carbon emissions, and improving indoor air quality.

[0097] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0098] For those skilled in the art, the specific meaning of the above terms in this invention can be understood according to the specific circumstances. When an element is referred to as being "assembled on," "mounted on," "fixed to," or "set on" another element, it may be directly on the other element or there may be an intermediate element present. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible embodiments.

[0099] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

[0100] In the description of the disclosure, the description of the terms "one embodiment", "an example", "a specific example", and the like, means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the disclosure. In the description of the disclosure, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

Claims

1. An integrated energy-passive-recovery fresh air device, characterized in that, The utility model relates to a building body (1) comprising an outer wall (11), a glass curtain wall (12) and a ventilated roof (13), a wall ventilation cavity (14) being formed between the outer wall (11) and the glass curtain wall (12), a roof ventilation cavity (15) being formed in the ventilated roof (13), a gravity heat pipe (16) being arranged in the ventilated roof (13); a horizontal fresh air unit (2) being arranged through the outer wall (11), the glass curtain wall (12) and the ventilation cavity, the horizontal fresh air unit (2) being used for realizing heat exchange ventilation between the inside and outside of the building body (1) through the temperature difference between the inside and outside; a tunnel fresh air unit (3) being arranged at the bottom of the building body (1), the tunnel fresh air unit (3) being used for realizing heat exchange ventilation between the inside and outside of the building body (1) through geothermal energy; an exhaust unit (4) being arranged on the roof and penetrating the roof ventilation cavity (15), the exhaust unit (4) being used for exhausting air in the building body (1); the outer wall (11) being sequentially provided with a first finish layer (111), a first leveling layer (112), a structural layer (113), a second leveling layer (114), a structural insulation layer (115), a third leveling layer (116) and a second finish layer (117) from the inside to the outside; a plurality of summer gravity heat pipes (16) and winter gravity heat pipes (16) being respectively arranged in the outer wall (11); the summer gravity heat pipe (16) being arranged obliquely, with the inside end being lower and the outside end being higher, and the inside part being located at the joint of the first finish layer (111) and the first leveling layer (112) and being in contact with air in the wall ventilation cavity (14); the winter gravity heat pipe (16) being arranged obliquely, with the inside end being higher and the outside end being lower, and the inside part being located at the joint of the first finish layer (111) and the first leveling layer (112) and being in contact with air in the wall ventilation cavity (14); an adiabatic section (161) being arranged at the central position of the gravity heat pipe (16), a ball valve switch (162) being arranged at the position of the adiabatic section (161), a condensation section (163) being arranged at one end of the gravity heat pipe (16), and an evaporation section (165) and a liquid working medium (166) being arranged at the other end of the gravity heat pipe (16); the tunnel fresh air unit (3) comprising a tunnel air inlet pipe (31) arranged underground, a heat exchange pipe (25) being arranged between the tunnel air inlet pipe (31) and the soil, the other end of the tunnel air inlet pipe (31) extending to each floor of the building body (1), and a tunnel air outlet (32) being arranged in the part of the tunnel air inlet pipe (31) extending to the inside of each floor; an energy storage space (33) being arranged at the bottom of the building body (1), the energy storage space (33) being located underground, and a heat exchange pipe (25) being arranged between the energy storage space (33) and the tunnel air inlet pipe (31). ​ The exhaust unit (4) comprises an air outlet duct (41) mounted on the roof, the top end of the air outlet duct (41) is rotationally connected with an eccentric part (42), the top end of the eccentric part (42) is provided with an exhaust port (43), and the exhaust port (43) is horizontally arranged. The eccentric part (42) is in the form of a square as a whole, an inner cavity is arranged on the side wall of the eccentric part (42) and the exhaust port (43) are arranged in the same direction, and the inner wall of the inner cavity is in the form of an inclined arc surface. A protective net is arranged on the inner wall of the exhaust port (43).

2. The integrated energy-passive-recovery fresh air device according to claim 1, characterized in that: The horizontal fresh air unit (2) comprises a horizontal air inlet pipe (21), the horizontal air inlet pipe (21) horizontally penetrates the outer wall (11), the glass curtain wall (12) and the ventilation cavity, the air inlet pipe (21) is provided with an air inlet assembly (22) at one end located outdoors, and is provided with a fresh air exhaust port (23) at one end located indoors, a horizontal air outlet pipe (24) is arranged on the side wall of the horizontal air inlet pipe (21), a heat exchange pipe (25) is arranged between the horizontal air inlet pipe (21) and the horizontal air outlet pipe (24), a turbid air inlet port (26) is arranged at one end of the horizontal air outlet pipe (24) away from the fresh air exhaust port (23), and a vertical air outlet pipe (27) is connected to the other end of the horizontal air outlet pipe (24), the vertical air outlet pipe (27) penetrates the building main body (1) and is in communication with the roof ventilation cavity (15) at the top end.

3. The integrated energy-passive-recovery fresh air device according to claim 2, characterized in that: A plurality of glass curtain wall air inlet ports (17) are arranged on the side wall of the glass curtain wall (12), and a glass curtain wall louver (18) is arranged in the glass curtain wall air inlet port (17), a ventilation cavity louver (19) is arranged in the wall ventilation cavity (14), and the ventilation cavity louver (19) is arranged between floors.

4. The integrated energy-passive-recovery fresh air device according to claim 3, characterized in that: The air inlet assembly (22) comprises a first air inlet louver (221) arranged at the end of the horizontal air inlet pipe (21) and a second air inlet louver (222) arranged on the side wall of the horizontal air inlet pipe (21), and the second air inlet louver (222) is located in the wall ventilation cavity (14). A filter layer is arranged in the horizontal air inlet pipe (21), and a sterilization layer is arranged on the side wall of the filter layer.

5. The integrated energy-passive-recovery fresh air device according to claim 4, characterized in that: An insulation section (251) is arranged at the central position in the heat exchange pipe (25), an insulating layer (252) is arranged on the outer surface of the insulation section (251), an evaporation section (253) is arranged at one end of the heat exchange pipe (25), a condensation section (254) is arranged at the other end of the heat exchange pipe (25), and a liquid absorbing core (255) is arranged on the side wall of the heat exchange pipe (25).

6. The integrated energy-passive-recovery fresh air device according to claim 5, characterized in that: The exhaust unit (4) comprises exhaust air channels (44) arranged on both sides of the ridge of the ventilated roof (13), the exhaust air channels (44) are in communication with the roof ventilation cavity (15), first electric louvers (45) are arranged on the exhaust air channels (44), and air pressure sensors are arranged on the first electric louvers (45).

Images