CN107062474A - A kind of nearly zero energy consumption building system based on accumulation of energy - Google Patents

Description

A near-zero energy building system based on energy storage

technical field

The invention relates to a low-rise building, in particular to a near-zero energy consumption building system based on energy storage.

Background technique

With the improvement of people's living standards, the requirements for the living environment are getting higher and higher, from the earliest hand fan cooling or firewood heating, to electric fan cooling or coal, electric heating, boiler heating, and then to air conditioning cooling and heating, from The sudden change from the original ecology to high energy consumption will bring serious energy consumption and environmental pollution. Especially in recent years, the concept of smart home with the concept of constant temperature and humidity housing has been further promoted to increase the comfort of people's living environment. However, buildings with constant temperature and humidity comfort basically consume energy, with air conditioning technology as the main The equipment is combined with automatic control technology to control the house at a constant temperature. This lifestyle is represented by many buildings in the United States. Therefore, the per capita energy consumption of the United States ranks first in the world. The heating energy consumption value of residential buildings + non-heating energy consumption value The heat consumption per unit area of the building is 13.55kgce/(m ² •year), and the power consumption is 49.6kwh/(m ² •year). The heat consumption per unit area of heating energy consumption is 12.8kgce/(m ² •year), and the electricity consumption is 15.6kwh/(m ² •year). The electricity consumption in the US is more than three times that of China. This concept of extravagant life and enjoyment has quietly affected China. Some developers are promoting this concept to sell houses, such as Wanguocheng MOMA. Although these products use some energy-saving technologies, after all, they need to pass the work of air-conditioning equipment for a long time. It can be maintained, so it produces high energy consumption and increases a large amount of CO ₂ emissions. If this concept and buildings are widely implemented in our country, the energy supply capacity may be insufficient if the energy supply capacity is increased by ten times the current total energy consumption. And it will further cause serious environmental problems and _CO2 emission problems, and it is not conducive to the rational consumption of resources, and will greatly accelerate the earth's resources, and sharply shorten the life span of the earth and the living space of human beings.

Contents of the invention

The object of the present invention is to provide a low-floor building system that can use solar energy and geothermal energy to adjust indoor temperature throughout the year, keep the indoor temperature between 16-26°C and simultaneously provide domestic hot water.

The energy-storage-based near-zero-energy building system provided by the present invention includes a building body, a modular phase-change energy-storage decorative wall system, an energy-storage-based glass cavity green plant system, vertical buried pipe tunnel ventilation and phase Variable energy storage coupling system, solar cooling and heating system based on energy storage; modular phase change energy storage decorative wall system and glass cavity green plant system are respectively arranged on the inside and outside of different exterior walls of the main building; modular phase change storage The energy-saving decorative wall system includes several phase-change energy-storage decorative wall panels assembled with each other, and each phase-change energy-storage decorative wall panel is built with phase-change energy-storage materials and air passages and water flows through the phase-change energy-storage materials Channel; the vertical buried pipe tunnel ventilation and phase change energy storage coupling system includes a vertical buried pipe buried in the soil along the vertical direction, and the two ends of the vertical buried pipe are respectively connected to the air inlet pipeline and the air outlet pipeline on the ground. The terminal of the air outlet pipeline is connected with the air channel of the phase change energy storage decorative wall panel, and the processed fresh air is sent into the room; the solar cooling and heating system based on energy storage includes solar photovoltaic photothermal integrated components, solar air conditioners, PCM The energy storage tank and hot water tank, the inlet and outlet of the solar photovoltaic photothermal integrated module are respectively connected with the PCM energy storage tank, hot water tank and solar air conditioner to form a circulation loop, and the solar photovoltaic photothermal integrated module uses solar energy to generate electricity and heat , the electric energy provides electricity for the operation of the whole system, and the heat energy is sent to the PCM energy storage tank, hot water tank and solar air conditioner respectively; the PCM energy storage tank is connected with the hot water tank and the solar air conditioner respectively as a heat source; The water flow channel of the variable energy storage decorative wall panel is connected, and the fresh air in the air channel of the phase change energy storage decorative wall system can exchange heat with the fluid in the water flow channel and send it into the room, so as to meet the indoor load demand and realize the control of the indoor temperature. Adjustment; the hot water tank is connected to the domestic hot water pipe; the glass cavity green plant system is fixed vertically on the outer wall of the building main body, and the bottom surface is fixed on the keel bracket with a cavity on the ground. In the height direction of the cavity, a phase-change energy storage plate is fixed on the inside, and a phase-change energy storage tank is arranged on the outside. A fan is installed in the cavity of the keel bracket, and a plant curtain wall is arranged on the outside of the phase-change energy storage plate. The exterior wall of the main building and the glass The top and bottom of the curtain wall are respectively provided with openable air outlets; the cavity of the keel bracket communicates with the back air channel of the solar photovoltaic photothermal integrated module, and the air in the cavity is in the back air channel of the solar photovoltaic photothermal integrated module. After being heated by the heat generated by the solar photovoltaic panels, it is sent into the room through the air outlet on the outer wall of the main building.

The phase-change energy-storage decorative wall panel of the modular phase-change energy-storage decorative wall system is a rectangular plate with an encapsulation shell, and the air channel and the water flow channel are respectively arranged along the longitudinal and transverse directions of the encapsulation shell, and the air channel and water flow channels are arranged on the inner and outer sides of the phase change energy storage decorative wallboard in the horizontal direction; The interfaces at both ends are plug-in interfaces, and the interfaces at both ends of the water flow channel are threaded interfaces. The air channel interface and the water flow channel interface of adjacent phase-change energy storage decorative wall panels are respectively connected as a whole by plug-in methods and threaded sleeves. After the phase change energy storage decorative wall panels are assembled, the two ends of the water flow channel are respectively connected to the main water inlet pipe and the main water return pipe; the packaging shell is also provided with installation holes for easy fixing to the main wall of the building.

After several phase change energy storage decorative wall panels are assembled, the inlet end of the air channel is connected with the air outlet pipeline of the vertical buried tunnel ventilation and phase change energy storage coupling system.

The keel bracket of the glass cavity green planting system is a shaped steel bracket, and the keel bracket is connected and fixed with the outer wall of the main body of the building through a U-shaped steel. A cavity is formed between them; the glass curtain wall is a double-layer glass curtain wall, and the phase change energy storage plate is an integral part of the inner and outer aluminum alloy plates and the phase change material filled between the two aluminum alloy plates, and the phase change energy storage plate is inlaid On the keel support; the phase change energy storage tank is a transparent glass tank, and the phase change material is packaged in the glass tank, and the glass tank is arranged along the width direction of the keel support through the support; several phase change energy storage tanks are evenly distributed on the The lower part of the height direction of the keel bracket; the plant curtain wall includes green plants and culture blocks, and the culture block is fixed on the outside of the phase change energy storage plate; a spray device is arranged above the plant curtain wall, and the spray device includes a The water supply pipe in the width direction of the top of the plant curtain wall has a number of nozzles evenly distributed on the outside of the water supply pipe in the length direction. The water outlets of the nozzles face the green plants. The drainage pipe of the glass curtain wall; the fan is a silent fan, the fan is arranged on the top and bottom of the keel bracket, the electric air valve that can be opened and closed automatically is set at the air outlet, and the entrance of the electric air valve is set There is a medium-efficiency filter; the outside of the glass curtain wall is provided with a venetian curtain that can be automatically opened and closed, and the upper side of the glass curtain wall is provided with a rain shield above the venetian curtain.

The main body of the building is equipped with a glass cavity green planting system. The outer wall includes an inner energy storage board, an inner heat preservation board, a masonry body and an outer heat preservation board from the inside to the outside. The U-shaped steel is connected and fixed to the outer heat preservation board.

The vertical buried pipes of the vertical buried pipe tunnel ventilation and phase change energy storage coupling system are buried in the soil through pipe wells, including a plurality of parallel U-shaped pipes, and each U-shaped pipe includes an air down pipe, an air up pipe and a bottom bend The upper end of the air downpipe is connected with the air inlet pipeline, and the upper end of the air uppipe is connected with the air outlet pipeline; the lower ends of the air downpipe and the air uppipe of each U-shaped pipe are respectively provided with tapered The conical section, the air downpipe and the air uppipe are connected through a connecting pipe above the conical section; the phase change material encapsulated by a cylindrical tube is suspended on the axial center line of the U-shaped tube air uppipe, and the lower end of the cylindrical tube is at the The upper end of the connecting pipe is lower than the upper end surface of the inner and outer casings, and the phase change temperature of the phase change material in the cylindrical pipe increases sequentially from bottom to top; the two sides of the upper end of the bottom bend are respectively connected with variable diameter joints, and the variable diameter joints It includes an upwardly tapering conical section and a cylindrical section above it. The upper port of the cylindrical section is connected to the lower port of the conical section as a whole. The upper part of the cylindrical section has a built-in funnel for receiving condensed water; the lowest position of the bottom bend There is a drainage pipe connected to the ground, and the drainage pipe extends from the ground to the ground and is connected to a drainage pump; the wall slope of the funnel is greater than 45°, and the outlet diameter is less than 10mm; the upper part of the bottom bend is equipped with a water level sensor.

The upper part of the U-shaped pipe air upward pipe is covered with a PVC outer sleeve, and an insulation material and a phase change material are sequentially arranged between the outer sleeve and the air upward pipe. The phase change material is placed in the inner sleeve, and the inner sleeve and the outer sleeve The two ends of the pipe are respectively connected with a sealing assembly; the sealing assembly includes an elastic collar, a sealing washer, an elastic washer and a sealing plug rivet. The outer wall, the sealing gasket has two outer walls respectively set on the air up pipe and the outer casing, corresponding to the outer end of the elastic collar, the outer end of the sealing gasket is flush with the outer ends of the outer casing and the inner casing, and the elastic gasket is located in the inner casing The outer ends of the pipe and the outer casing seal the two sealing gaskets at the same time, and the elastic gasket, the sealing gasket and the elastic collar are fastened together by the sealing plug rivets to seal the thermal insulation material and the phase change material.

The air inlet pipeline of the vertical buried pipe tunnel ventilation and phase change energy storage coupling system is connected with a filter and a dehumidifier, and phase change materials are arranged inside and outside the pipe on the side connecting the vertical buried pipe and the air outlet pipeline. The bottom of the buried pipe is provided with condensed water collection and discharge pipelines; air valves are respectively connected to the air inlet pipeline and the air outlet pipeline, and fans are connected to the air outlet pipeline.

The PCM energy storage tank and the hot water tank of the solar heating and cooling system form a circulation loop through the connecting pipeline and the hot water circulation pump; the PCM energy storage tank and the solar air conditioner form a closed loop through the connection pipeline and the hot water circulation pump ; The cooling circuit is formed through the connecting pipe between the solar air conditioner and the phase change energy storage decorative wall panel; the heating circuit is formed through the connecting pipe between the hot water tank and the phase change energy storage decorative wall panel; The fluid in the connecting pipes between energy storage decorative wall panels is water, and the fluid in the connecting pipes between other equipment is heat transfer oil; PCM energy storage tanks and hot water tanks are respectively equipped with auxiliary heat sources, and the hot water tanks are connected with water supply devices.

The PCM energy storage tank is provided with three inlets a ₁ , d ₁ , f ₁ and three outlets b ₁ , c ₁ , e ₁ , and the hot water tank has three inlets c ₂ , b ₂ , f ₂ and a ₂ , three outlets d ₂ , e ₂ , solar air conditioners have two inlets a ₃ , d ₃ and two outlets b ₃ , c ₃ ; The a ₁ inlet of the PCM energy storage tank, the c ₂ inlet of the hot water tank and the a ₃ inlet of the solar air conditioner are connected; the b ₁ outlet of the PCM energy storage tank, the d ₂ outlet of the hot water tank, and the b ₃ outlet of the solar air conditioner are respectively connected The pipeline is connected with the inlet of the solar photovoltaic photothermal integrated module _; the c1 outlet _of the PCM energy storage tank and the b2 inlet of the hot water tank, the _a2 outlet of the hot water tank and the d1 inlet _of the PCM energy storage tank are respectively connected through the connecting pipes Connected; the e1 outlet _of the PCM energy storage tank is connected with the a3 inlet _of the solar air conditioner, the b3 outlet _of the solar air conditioner is connected with the f1 inlet _of the PCM energy storage tank respectively through connecting pipes; the c3 outlet _of the solar air conditioner is connected with the indoor radiant panel The entrance, the outlet of the indoor radiant panel and the _d3 inlet of the solar air conditioner are respectively connected through connecting pipes; the _e2 outlet of the hot water tank is connected with the entrance of the indoor radiant panel, and the outlet of the indoor radiant panel is connected with the _f2 inlet of the hot water tank respectively The pipes are connected, and the _e2 outlet of the hot water tank is connected to the domestic hot water pipe at the same time _; the a1 inlet and b1 outlet, _d1 inlet and _c1 outlet, _e1 outlet and _f1 inlet _of the PCM energy storage tank are connected It is connected by a spiral copper tube _; the outlet a2 _of the hot water tank is connected to the inlet b2, the inlet _c2 is connected to the outlet _d2 through a spiral copper tube _; the inlet a3 _of the solar air conditioner is connected to the outlet b3 to form a heat medium channel, _The c3 outlet is connected with the _d3 inlet to form a refrigerant channel _; the connecting pipe between the c1 outlet _of the PCM energy storage tank and the b2 inlet of the hot water tank, the e1 outlet _of the PCM energy storage tank and the a3 inlet _of the solar air conditioner The hot water circulating pumps are respectively connected to the connecting pipes between them, and the circulating water pumps are connected to the inlet pipes of the solar photovoltaic photothermal integrated components; the d ₁ inlet and the c ₁ outlet of the PCM energy storage tank, the e ₁ outlet and the f ₁ outlet The spiral copper tubes between the inlets are respectively connected to the first temperature sensor and the second temperature sensor, and a temperature sensor is arranged in the hot water tank; each inlet of the PCM energy storage tank, the hot water tank and the solar air conditioner is connected with a For gate valves and butterfly valves, insulation layers are provided outside the connecting pipes.

The invention connects the ventilation of the vertical buried pipe tunnel with the phase change energy storage coupling system and the solar cooling and heating system based on energy storage through the modular phase change energy storage decorative wall system, and the modular phase change energy storage decorative wall is used as a heat exchange unit , the coupling system of vertical buried tunnel ventilation and phase change energy storage is used as the fresh air processing unit, and the solar cooling and heating system based on energy storage is used as the cold and heat source, and the cold/heat generated by solar energy is used to treat the tunnel air system in summer and winter. Compensate the fresh air to ensure that the fresh air is processed to the air supply state and then sent into the room through the modular phase change energy storage decorative wall system. At the same time, the solar cooling and heating system based on energy storage stores cold/heat in the modular phase change storage In the phase change material in the decorative wall system, the temperature fluctuation in the room can be reduced through the adjustment of the phase change material, so as to ensure that the indoor temperature is maintained within the comfortable range of the human body. The invention simultaneously connects the glass cavity green planting system with the back air channel of the photovoltaic photoelectric integrated component in the solar cooling and heating system based on energy storage. In winter, the air in the glass cavity green plant system enters the room through the back air channel of the photovoltaic photoelectric integrated module. The air is heated by the heat generated by the solar photovoltaic panel in the back air channel of the photovoltaic photoelectric integrated module, thereby increasing the temperature of the air entering the glass cavity green plant system and improving the utilization rate of the glass cavity green plant system in winter.

In a word, the present invention combines vertical buried pipe tunnel ventilation with phase change energy storage coupling system, energy storage based solar cooling and heating system, modular phase change energy storage decorative wall system, energy storage based glass cavity green The planting system, the solar cooling and heating system based on energy storage are integrated with the main body of the building, fully and efficiently use solar energy and geothermal energy, so as to realize the purpose of using solar energy and geothermal energy to adjust the indoor temperature change throughout the year, and keep the room at a constant temperature for a long time. Between 16-26 ℃, and can provide the required domestic hot water at the same time.

Description of drawings

Fig. 1 is a schematic diagram of the equipment layout of the present invention.

FIG. 2 is an enlarged schematic view of direction A in FIG. 1 .

Fig. 3 is a schematic diagram of the enlarged structure of the phase-change energy storage decorative wallboard in Fig. 2 .

FIG. 4 is a schematic diagram of B-B in FIG. 3 .

Fig. 5 is a schematic diagram of C-C in Fig. 3 .

FIG. 6 is a side view enlarged cross-sectional schematic diagram of the glass cavity green plant system in FIG. 1 .

Fig. 7 is a schematic diagram of D-D in Fig. 6 (the venetian blind is not drawn).

Fig. 8 is a schematic diagram of the axial structure of the keel bracket in Fig. 1 .

FIG. 9 is an enlarged schematic diagram of part E in FIG. 7 .

Fig. 10 is an enlarged structural schematic diagram of the vertical buried tunnel ventilation and phase change energy storage coupling system in Fig. 1 .

Fig. 11 is a schematic structural view of one of the vertical buried pipes in Fig. 10 .

FIG. 12 is a schematic cross-sectional view of F-F in FIG. 11 .

FIG. 13 is an enlarged schematic view of part G in FIG. 11 .

FIG. 14 is an enlarged schematic view of part H in FIG. 11 .

Fig. 15 is a schematic diagram of an enlarged equipment layout of the energy storage-based solar cooling and heating system in Fig. 1 .

Fig. 16 is an enlarged structural schematic diagram of the PCM energy storage tank in Fig. 15 .

Fig. 17 is an enlarged structural schematic diagram of the hot water tank in Fig. 15 .

detailed description

As shown in Figure 1, the energy storage-based near-zero-energy building system disclosed in this embodiment includes a building body 1, a modular phase-change energy storage decorative wall system 2, a glass cavity green plant system 3, a vertical buried Tube tunnel ventilation and phase change energy storage coupling system 4, solar cooling and heating system based on energy storage 5.

2-5 are structural schematic diagrams of the modularized phase change energy storage decorative wall system 2 of this embodiment.

As shown in FIG. 2 , the modularized phase-change energy-storage decorative wall system 2 of this embodiment is assembled from four modular phase-change energy-storage decorative wall panels 21 . After assembling, the horizontal direction of the body of wall is equipped with a water flow channel, and the vertical direction is equipped with an air channel.

As shown in Figures 3 to 5, the phase-change energy storage decorative wall panel 21 is a rectangular plate with an encapsulation shell 211, and the longitudinal and transverse directions of the encapsulation shell 211 are arranged with air passages 212 and water flow passages 213, and the air passages 212 The water flow channel 213 is respectively arranged on the inner side and the outer side of the phase change energy storage decorative wall panel 21 in the thickness direction, and the water flow channel 213 on the outer side can perform radiation heat exchange with the indoor through heat conduction. The encapsulation shell 211 should be made of aluminum alloy plate with a thickness of 1-2 mm, on which corresponding interfaces are respectively set at the two ends of the air channel 212 and the water flow channel 213, and the interfaces at both ends of the air channel 212 are plug-in interfaces 214, and the water flow The interfaces at both ends of the channel 213 are threaded interfaces 215 . The four corners of the package housing 211 are provided with installation holes 216 for fixing to the main wall of the building. The phase change energy storage material in the packaging shell is paraffin. In order to increase the thermal conductivity of the phase change material, 5%-10% graphene is added to the paraffin, and the graphene and paraffin are stirred into a viscous shape before filling.

The horizontal length of the phase change energy storage decorative wall panel 21 should be 800mm-1000mm, the height should be 400mm-500mm, and the thickness should be 40mm-50mm, so as to facilitate modular production, installation and disassembly. The distance between the air channel 212 and the water flow channel 213 in the thickness direction should be about 5mm, the diameter of the air channel should be 20mm-25mm, and the distance between adjacent air channels should be 15mm-20mm; the diameter of the water flow channel should be 5mm-20mm. 10mm, and the distance between adjacent water flow channels should be 15mm-20mm.

The air channel interface and the water flow channel interface of the adjacent phase-change energy storage decorative wall panels 21 are respectively connected as a whole by plugging and threaded sleeves. After the phase change energy storage decorative wallboards 21 are connected, the water inlet main pipe 23 and the return water main pipe 24 are respectively connected on both sides of the water flow channel.

6-9 are structural schematic diagrams of the glass cavity green planting system 3 of this embodiment.

As shown in Figure 6, the glass cavity green plant system 3 of this embodiment includes a keel support 31, a plant curtain wall 32, a glass curtain wall 33, a louver curtain 34, a phase change energy storage plate 35, a phase change energy storage tank 36, and a silent fan 37, electric air valve 38, medium-efficiency filter 39. As shown in Fig. 6 and Fig. 7, the exterior wall of the building body 1 to which the green plant glass curtain wall 32 is attached includes an inner energy storage board 11, an inner heat preservation board 12, a masonry body 13 and an outer heat preservation board 14 in sequence from the inside to the outside. As shown in Figure 6 and Figure 8, the keel bracket 31 is a shaped steel bracket with an inner cavity, and the keel bracket in this embodiment is surrounded by rectangular steel. As shown in Figures 7 and 9, the keel bracket 31 and the outer wall of the main body of the building are connected and fixed by U-shaped steel 311. One side wall of the U-shaped steel is connected and fastened with the shaped steel of the keel bracket 1 by screws, and the other side wall is passed through The rivet is fixed with the external insulation board 14 of the building main wall 1. As shown in Fig. 6 and Fig. 7, the phase change energy storage plate 35 is an integral part of the aluminum alloy plates on both sides and the phase change material stuffed therein, and the phase change energy storage plate 35 is made to be surrounded with the vertical and horizontal section steel of the keel bracket 31 Inlaid installation into the corresponding size of the rectangular frame. For better energy storage, heat absorbing material is coated on the upper part of the aluminum alloy plate. Paraffin is used as the phase change material, and the phase transition temperature is 20°C. In order to enhance heat transfer, 5%-10% of graphene and carbon fiber are added to the paraffin at a ratio of 1:1. The phase change energy storage board can absorb a certain amount of energy, provide a certain cooling capacity for the air circulation in the cavity in summer, and provide a certain amount of heat in winter, and can adjust the indoor temperature to stabilize it within a certain range. After the phase change energy storage plate 35 is installed on the keel bracket 31, a cavity is formed between the outer insulation board layer 14 of the building main wall 1, and the cavity has the functions of heat insulation and heat preservation.

As shown in FIG. 6 , the plant curtain wall 32 includes a culture medium 321 and green plants 322 planted on the culture medium 321 , and the culture medium 321 of this embodiment adopts soil blocks that are not moldy and have their own nutrition. The culture medium is fixed on the outside of the phase change energy storage plate 35, so that the culture medium 321 can be stabilized in a certain temperature range for a long time, so as to ensure the good growth of the green plants 322.

As shown in FIG. 6 , above the plant curtain wall 32 , a water supply pipe GS arranged along its width direction is arranged, and nozzles are evenly distributed outside the water supply pipe GS, and the nozzles are controlled to spray water to the plants regularly so as to maintain the normal growth of the plants. A sump JSC is set under the plant curtain wall 32 to collect excess spray water, and a drainpipe P is arranged at the end of the sump to drain the water in the sump out of the cavity of the keel bracket 31 . In summer, the air temperature in the cavity can also be reduced by spraying through the nozzle. The water supply pipe GS can be communicated with the indoor running water pipeline to get the water source.

As shown in FIG. 6 , the phase change energy storage tanks 36 are arranged along the width direction of the keel bracket 31 , and several phase change energy storage tanks 36 are evenly distributed on the lower part outside the cavity of the keel bracket 31 through the angle steel bracket J. The phase-change energy storage tank of the present embodiment adopts a transparent glass tank, the diameter of the glass tank is selected as 5cm, and the distance between adjacent glass tanks is set to 10cm, and the phase-change energy storage tanks are arranged upwards from the bottom of the keel bracket cavity. The height of the arrangement is about 150cm-200cm. Paraffin wax with a phase change temperature of 30°C was packaged in a glass jar as a phase change material.

In winter, solar radiation can enter the cavity of the keel support through the glass tank without affecting the lighting of green plants; the phase change material in the glass tank can absorb and store a large amount of solar heat in winter, so that the cavity The temperature is stable in a certain temperature range for a long time, and can continuously provide a certain amount of heat for the residential room.

As shown in Figure 6 and Figure 7, the glass curtain wall 33 is a double-layer glass curtain wall. In this embodiment, 5+18A+5 ordinary insulating glass is used. The glass curtain wall is laid on the periphery of the keel bracket so that the cavity of the keel bracket forms a closed cavity. . In order to keep the air in the closed cavity circulating, the top and bottom of the main building wall 1 and the top and bottom of the glass curtain wall 33 are respectively provided with air outlets, and electric air valves 38 and medium-efficiency filters are arranged at the air outlets of the main building wall 1 39. An electric air valve 38 is arranged at the tuyere of the glass curtain wall. The air outlets on the top and bottom of the exterior wall of the main building are about 10cm away from the corresponding edge of the plant curtain wall, and medium-efficiency filters are installed at the entrances of the air outlets. Silent fans 8 are installed on the outer side of the keel bracket 1 cavity corresponding to the upper and lower air outlets of the glass curtain wall. The upper silent fan is turned on in winter and is mainly used as a power source for hot air at the lower air outlet. The lower silent fan is mainly used to provide cold air for the upper air outlet. power source. A temperature sensor W is also installed in the cavity of the keel bracket, and the control center controls the opening and closing of the silent fan and the electric air valve through the temperature data collected by the temperature sensor.

The outside of the glass curtain wall 33 is also provided with a louver curtain 34 , and the upper side of the glass curtain wall 33 is provided with a rain shield DY above the louver curtain 34 . In winter, the blades of the venetian blinds are opened to allow more solar radiation heat to enter the cavity of the keel bracket so that the phase change energy storage tank can absorb heat for storage; when the solar radiation is strong in summer, the blades of the venetian blinds are closed to block a part The sun radiates heat, thus avoiding excessive temperature in the cavity. The rain shield is mainly to reduce the damage of rainwater to the venetian blinds.

10-14 are schematic structural diagrams of the vertical buried tunnel ventilation and phase change energy storage coupling system 4 of this embodiment. The vertical buried pipe tunnel ventilation and phase change energy storage coupling system of this embodiment utilizes the relatively stable temperature of the underground soil, uses air as the heat transfer medium, and realizes tunnel ventilation through the coupling of the vertical buried pipe and the phase change material inside and outside the vertical buried pipe. The heat exchange with the underground soil provides cold energy for the residential room, realizes the efficient use of the soil cold source on the basis of greatly reducing the occupied area, and improves the quality of the indoor air at the same time.

As shown in Figure 10, the vertical buried pipe tunnel ventilation and phase change energy storage coupling system 4 of this embodiment includes a vertical buried pipe 41 buried in the soil along the vertical direction, and the two ends of the vertical buried pipe 41 are respectively connected to The air inlet pipeline and the air outlet pipeline above, the terminal of the air outlet pipeline is connected with the modular phase change decorative wall system, the filter 42 and the dehumidifier 43 are connected on the air inlet pipeline, the air inlet pipeline and the air outlet pipe Air valves 44 are respectively connected to the roads, and fans 45 are connected to the air inlet pipelines. The filter 42 of this embodiment adopts a medium-efficiency filter.

As shown in Fig. 10 and Fig. 11, the vertical buried pipe 41 pipe well GD is buried in the soil, including a plurality of U-shaped pipes connected in parallel, and the number of U-shaped pipes is determined by the cooling load of the building. Each U-shaped pipe includes an air downpipe 411, an air uppipe 412 and a bottom bend 413. The upper end of the air downpipe 411 communicates with the air inlet pipeline, and the upper end of the air uppipe 412 communicates with the air outlet pipeline. The lower ends of the air downpipe 411 and the air uppipe 412 are respectively provided with tapered sections, and the air downpipe 11 and the air uppipe 412 are connected through the connecting pipe 414 above the conical section. The embedding of the U-shaped pipe in this embodiment The depth is about 20 meters, and the connecting pipe 414 is arranged about 1 m above the bottom curve 413 .

As shown in Figures 11 to 14, the shallow pipe section of the air upstream pipe 412 is covered with a PVC outer sleeve 4121, and an insulating material 4122 and a phase change material 4123 are sequentially arranged between the outer sleeve 4121 and the air upward pipe 412. Placed in the inner casing 4124, the two ends of the inner casing 4124 and the outer casing 4121 are respectively connected with a sealing assembly M, so as to prevent groundwater from immersing in the thermal insulation material. The outer sleeve 4121 is located within the range of 0-8 meters underground of the air uplink pipe, and the depth of the soil layer temperature in this area is lower than 20°C. The insulation material adopts 3-5cm polyurethane.

As shown in FIGS. 11 and 13 , the sealing assembly M includes an elastic collar M1 , a sealing washer M2 , an elastic washer M3 and a sealing plug rivet M4 . There are two elastic collars M1, respectively sleeved on the outer wall of the air ascending pipe 412 and the outer wall of the outer sleeve 4121, and there are two sealing washers M2, respectively sleeved on the outer walls of the air ascending pipe 412 and the outer sleeve 4121, corresponding to the elastic collar M1 The outer end of the sealing gasket M2 is flush with the outer ends of the outer casing 4121 and the inner casing 4124, and the elastic gasket M3 is located at the outer ends of the inner casing 4121 and the outer casing 4121 to seal the two sealing gaskets M2 at the same time. The plug rivet M4 fastens the elastic washer M3, the sealing washer M2 and the elastic collar M1 into one body to seal the thermal insulation material and the phase change material. The thickness of the elastic collar M1 is 1-2 cm, which is larger than the diameter of the rivet. The junction of the elastic washer M2 and the sealing washer M3 is sealed with glass glue during construction.

As shown in Figure 11, the phase change material encapsulated by a cylindrical tube 415 is suspended on the axial center line of the air ascending tube 412. The phase change temperature of the phase change material in the tube 415 increases sequentially from bottom to top. The phase change materials in this embodiment all use paraffin wax, and a mixture of 5%-10% graphene and carbon fiber is added to the paraffin wax at a ratio of 1:1. There are three layers of phase-change materials in the cylindrical tube, and the phase-change temperatures from bottom to top are 16°C, 18°C and 20°C. In this embodiment, the phase change temperature of the phase change material outside the air ascending pipe is 20°C. The cylindrical tube of the present embodiment adopts a tube with a diameter of 5 cm.

As shown in Figure 14, the two sides of the upper end of the bottom bend 413 are respectively connected with reducing joints, and the reducing joints include an upwardly tapering conical section 416 and a cylindrical section 417 above it, and the upper port of the cylindrical section and the conical section The lower port of the cylinder is connected as a whole, and the upper part of the cylindrical section has a built-in funnel 418 for receiving condensed water. The wall slope of the funnel 418 in this embodiment is greater than 45°, and the wall slope is sufficient to allow the condensed water to flow downward under the action of gravity; the diameter of the outlet of the funnel is not greater than 10mm, so that the condensed water in the air downpipe and air uppipe can smoothly enter the bottom In the curved pipe, the air in the pipe is not easy to pass through the funnel, so that it is difficult to form air convection in the bottom bend, reducing the pollution of the air in the pipe by condensed water. As shown in Fig. 11 and Fig. 14, a drain pipe 48 is connected to the lowest position of the bottom curve 413, and a drain pump 49 is connected to the drain pipe 8 protruding from the ground to the ground. The upper part of the bottom curve 413 is provided with a water level sensor swcgq.

The underground pipes are buried vertically in the pipeline wells, which overcomes the defect that the conventional horizontal pipe system needs to occupy an excessively large foundation pit area, and also solves the problem that the shallow soil temperature in some areas is too high, which leads to the inefficiency of the conventional horizontal pipe system. high question. The phase change material in the buried pipe can store a part of the soil cold contained in the tunnel ventilation. As the operating time of the system prolongs, the heat transfer efficiency of the tunnel will decrease. At this time, the cold energy stored in the phase change material is used as the cold source of the tunnel ventilation to cool the air in the pipe, thereby prolonging the effective time of the system. At the same time, the phase-change material outside the vertically buried pipe plays the dual role of heat preservation and energy storage. It can store cold energy when the wind speed is low, and effectively utilizes the shallow heat preservation pipe section, effectively extending the working length of the tunnel. .

The phase change energy storage tube inside and outside the vertical buried tube effectively increases the heat exchange area of the tunnel ventilation, thereby improving its cooling effect. The arrangement of the condensed water collection and discharge pipeline at the bottom of the vertical buried pipe makes full use of the gravity to collect the condensed water in the pipe, and drains the condensed water to the outdoor ground through the drain pipe. The setting of the funnel structure can reduce or avoid the contact between the condensed water and the circulating air in the pipe, thus greatly reducing the possibility that the conventional horizontal buried pipe system will introduce mold and germs caused by condensation in summer into the room, and effectively improve the indoor air quality.

15-17 are schematic structural diagrams of the energy storage-based solar cooling and heating system 5 of this embodiment.

As shown in Fig. 15, the energy storage-based solar cooling and heating system of this embodiment consists of three parts: the heating/cooling side, the heat storage side and the user side. The system structure involved in the heating/cold side uses heat transfer oil as heat/refrigerant and uses solar energy to generate heat/cool energy, mainly including solar photovoltaic photothermal integrated components 51, circulating water pump 52 and solar air conditioner 56. The solar photovoltaic photothermal integrated component completes the heat collection process of the system, and is used for heating/domestic hot water and supplying the heat medium water required by the solar air conditioner 56 . The heat storage side stores the heat energy generated by the heating/cold side, and supplies heat to the heating/cooling side and the user side. The system structure involved in the process includes PCM energy storage tank 53, hot water tank 54, and hot water circulation pump. 55. The user side is the system structure involved in the process of supplying domestic hot water to users with hot water flowing out of the heat storage side or cold water flowing out of the heating/cooling side, indoor treatment of air, and hot water flowing out of the heat storage side, including phase change energy storage Decorative wallboard 21, domestic hot water pipe 511. The heating/cooling side, the heat storage side and the user side are connected through connecting pieces to form a complete PCM energy storage-based solar heating and cooling system, and the connecting pieces include connecting pipes and a four-way reversing valve 510 .

As shown in Fig. 15 and Fig. 16, the PCM energy storage tank 53 is provided with three inlets a ₁ , d ₁ , f ₁ and three outlets b ₁ , c ₁ , e ₁ . _The connections between a1 inlet and _b1 outlet, _d1 inlet and _c1 outlet, _e1 outlet and f1 inlet are all connected by spiral copper _tubes .

As shown in Fig. 15 and Fig. 17, the hot water tank 54 has three inlets c ₂ , b ₂ , f ₂ and three outlets a ₂ , d ₂ , e ₂ . The outlet of a ₂ and the inlet of b ₂ , the inlet of c ₂ and the outlet of d ₂ are all connected by spiral copper tubes.

As shown in Figure 15, the solar air conditioner 56 has two inlets a ₃ and d ₃ and two outlets b ₃ and c ₃ . The inlet of a ₃ and the outlet of b ₃ are connected through a spiral copper tube to form a heat medium channel, and the outlet of c ₃ and the inlet of d ₃ are connected through a spiral copper tube to form a refrigerant channel.

As shown in Figure 15, the outlet of the solar photovoltaic photothermal integrated module 51 is respectively connected to the a1 inlet of the PCM energy storage tank 53, the _c2 inlet of the hot water tank 54 and the _a of the solar air conditioner 56 through the connecting pipe and the four-way valve 510. The ₃ inlets are connected, the b1 outlet _of the PCM energy storage tank, the _d2 outlet of the hot water tank, and the b3 outlet _of the solar air conditioner are respectively connected with the inlet of the solar photovoltaic photothermal integrated module 51 through connecting pipes to form a circulation loop. A circulating water pump 52 is connected to the inlet pipe of the solar photovoltaic photothermal integrated module 51 .

_The c1 outlet _of the PCM energy storage tank 53 is communicated with the b2 inlet of the hot water tank 54, and the _a2 outlet of the hot water tank 54 is communicated with the d1 inlet _of the PCM energy storage tank 53 respectively to form a circulation loop through connecting pipes. _The spiral copper tubes between the d1 inlet and c1 outlet, e1 outlet and f1 inlet _of the PCM energy storage tank 53 are respectively connected to the _first temperature sensor _cgq1 and the second temperature sensor cgq2, and the hot water tank 54 is provided with a temperature sensor cgq.

The e ₁ outlet of the PCM energy storage tank 53 communicates with the a ₃ inlet of the solar air conditioner 56, and the b ₃ outlet of the solar air conditioner 56 and the f ₁ inlet of the PCM energy storage tank 53 respectively communicate with a closed circuit through connecting pipes.

_The connecting pipe between the c1 outlet _of the PCM energy storage tank 53 and the b2 inlet of the hot water tank 54, the connecting pipe between the e1 outlet _of the PCM energy storage tank ₅₃ and the a3 inlet of the solar air conditioner 56 are respectively connected with Hot water circulating pump 55.

The phase change material in the PCM energy storage tank 53 is paraffin wax with a phase change temperature of 100°C. The paraffin wax is encapsulated in a stainless steel packaging tank with a diameter of 100 cm. At the same time, 5%-10% graphene and carbon fiber are added to the paraffin wax at a ratio of 1:1. composition of the mixture. Heat transfer oil is used as heat transfer medium.

The PCM energy storage tank 53 and the hot water tank 54 are provided with spiral electric heating tubes as auxiliary heat sources. In Fig. 16 and Fig. 17, g ₁ , h ₁ , g ₂ , and h ₂ are the external joints of the spiral electric heating tubes. The setting of the spiral electric heating tube can ensure the normal and stable operation of the system when the solar energy is insufficient or the stored heat energy is insufficient.

_The c3 outlet of the solar air conditioner 56 is communicated with the entrance of the phase change energy storage decorative wall panel 21, and the outlet of the phase change energy storage decorative wall panel 21 is connected with the _d3 entrance of the solar air conditioner 56 respectively through connecting pipes to form a cooling circuit.

The _e2 outlet of the hot water tank 54 is connected with the entrance of the phase-change energy storage decorative wall panel 21, the outlet of ₂₁ and the f2 entrance of the hot water tank 54 are respectively connected to form a heating circuit through connecting pipes, and the _e2 outlet of the hot water tank 54 is simultaneously A domestic hot water pipe 511 is connected. The hot water tank 54 is also connected with a replenishing water device 58, and the replenishing water is sent in through the i interface of the hot water tank, as shown in FIG. 17 . The water replenishing device is used to supplement the supply of domestic hot water and the water loss during the heating process. Try to ensure that the speed of water replenishment is equivalent to the speed of domestic hot water intake.

The fluid in the connecting pipeline between the solar air conditioner 56 and the phase-change energy storage decorative wall panel 21 is water, and the fluid in the connecting pipeline between other equipment is heat transfer oil. Heat transfer oil prevents evaporation when the fluid temperature is too high.

Gate valves and butterfly valves are connected to the inlets of PCM energy storage tanks, hot water tanks and solar air conditioners to control the fluid flow in each connecting pipe. Rubber and plastic insulation layers are installed outside each connecting pipe to prevent system energy loss.

The working process of this embodiment is as follows:

Summer domestic hot water and air conditioning mode

(a) When there is solar radiation, the solar cooling and heating system based on energy storage is turned on. This system uses solar energy to generate electricity and prepare high-temperature medium at the same time, and store the generated electricity in the battery for power supply of various systems; The heat is stored in the PCM energy storage tank by using high-temperature medium, which is used for heating the hot water tank and used for solar air conditioning to prepare cold energy.

When the main body of the building has no load demand, the operation of the solar cooling and heating system based on energy storage is maintained.

When there is a load demand in the main body of the building, the vertical buried tunnel ventilation and phase change energy storage coupling system and the cooling part of the solar cooling and heating system based on energy storage are turned on, and the vertical buried tunnel ventilation and phase change energy storage coupling system is combined with The modular phase-change energy storage decorative wall is connected, and the solar cooling and heating system based on energy storage is connected with the modular phase-change energy storage decorative wall; the cooling generated in the solar cooling and heating system based on energy storage is sent to the modular In the water flow channel of the phase change energy storage decorative wall panel, the cold energy is transferred to the phase change material in the wall panel and the fresh air in the air channel. In the air channel of the phase change energy storage decorative wall panel, this process can ensure that the fresh air is processed to the air supply state point and then sent to the room. At the same time, the phase change material in the phase change energy storage decorative wall panel can reduce the fluctuation of indoor temperature and determine The indoor temperature is maintained within the thermal comfort range of the human body;

(b) When there is no solar radiation and when the building has no load demand, shut down the system operation; at this time, if the building has a load demand, turn on the cooling part based on the energy storage solar cooling and heating system, and use the heat stored in the PCM energy storage tank to prepare Cooling capacity, open the vertical buried pipe tunnel ventilation and phase change energy storage coupling system, and at the same time connect the vertical buried pipe tunnel ventilation and phase change energy storage coupling system with the modular phase change energy storage decorative wall system, and integrate solar cooling based on energy storage The heating system communicates with the radiation and convection-based modular phase-change energy-storage decorative wall, and sends the cold energy generated in the energy-storage-based solar cooling and heating system to the water flow channel of the modular phase-change energy-storage decorative wall system, Transfer the cold energy to the phase change material and fresh air in the wall, and at the same time control the vertical tunnel ventilation and phase change energy storage coupling system to send the processed fresh air to the air channel of the modular phase change energy storage decorative wall, This process can ensure that the fresh air is sent to the room after being processed to the air supply state point, and at the same time, the phase change material in the phase change energy storage decorative wall can reduce the indoor temperature fluctuation and ensure that the indoor temperature is maintained within the thermal comfort range of the human body;

(c) The glass cavity green plant system is kept open in summer to reduce the indoor load and provide oxygen for the room through green vegetation.

Transitional seasonal domestic hot water

(a) When there is solar radiation, the solar cooling and heating system based on energy storage is turned on. This system uses solar energy to generate electricity and prepare high-temperature medium at the same time, and stores the generated electricity in the battery for power supply of various systems in the building. , using high-temperature media to store heat in the PCM energy storage tank for heating the hot water tank. When the main body of the building has no hot water demand, the operation of the solar cooling and heating system based on energy storage is maintained. When there is a hot water load demand in the building, the hot water in the hot water tank can be used directly;

(b) When there is no solar radiation, open the connection between the energy storage tank and the hot water tank in the solar cooling and heating system based on energy storage to ensure that the temperature of the hot water tank is higher than the required temperature range. When there is a load demand in the building, the hot water in the hot water tank can be used directly;

(c) The glass cavity green plant system remains open during the transition season to provide oxygen to the room and improve comfort.

Domestic hot water and heating mode in winter

(a) When there is solar radiation, turn on the solar cooling and heating system based on energy storage, which uses solar energy to generate electricity and prepare high-temperature medium at the same time, and store the generated electricity in the battery for power supply of various systems in the building , using high-temperature media to store heat in the PCM heat storage tank for heating the hot water tank; when the building has no load demand, maintain the operation of the solar cooling and heating system based on energy storage. When there is a load demand in the building, open the vertical buried tunnel ventilation and phase change energy storage coupling system, and at the same time connect the vertical buried tunnel ventilation with the phase change energy storage coupling system and the modular phase change energy storage decorative wall system. The advanced solar cooling and heating system is connected with the modular phase change energy storage decorative wall, and the heat generated in the solar cooling and heating system based on energy storage is sent to the water flow channel of the modular phase change energy storage decorative wall system to transfer the heat For the phase change material and fresh air in the wall, the vertical buried pipe tunnel ventilation and phase change energy storage coupling system sends the processed fresh air to the air channel of the modular phase change energy storage decorative wall system, and the tunnel wind in winter cannot process the fresh air At the air supply state point, the fresh air is reheated in the modular phase change energy storage decorative wall to the air supply state point and then sent to the room. At the same time, the phase change material in the phase change energy storage decorative wall releases heat to reduce the indoor temperature. fluctuations to ensure that the indoor temperature is maintained within the thermal comfort range of the human body;

(b) Shut down the system operation when there is no solar radiation and when there is no load demand on the building. When there is a load demand in the building, the vertical buried tunnel ventilation and phase change energy storage coupling system is turned on, and the vertical buried tunnel ventilation and phase change energy storage coupling system is connected to the modular phase change energy storage decorative wall system, which will be based on energy storage. The advanced solar cooling and heating system is connected with the modular phase change energy storage decorative wall, and the heat generated in the solar cooling and heating system based on energy storage is sent to the water flow channel of the modular phase change energy storage decorative wall system to transfer the heat For the phase change material in the wall and the fresh air, the vertical buried pipe tunnel ventilation and phase change energy storage coupling system sends the processed fresh air to the air channel of the modular phase change energy storage decorative wall, and the tunnel wind in winter cannot The fresh air is processed to the air supply state point, and the fresh air is reheated to the air supply state point in the modular phase change energy storage decorative wall system and then sent to the room. At the same time, the heat release of the phase change material in the phase change energy storage decorative wall can be reduced. Indoor temperature fluctuations to ensure that the indoor temperature is maintained within the thermal comfort range of the human body;

(c) When there is solar radiation, connect the glass cavity green plant system with the back air channel of the solar photovoltaic photothermal integrated module, and the fresh air in the cavity of the glass cavity green plant system is heated to the air supply state point through the air channel When it is sent into the room, the plants can provide a certain amount of oxygen and water vapor for the room through photosynthesis and transpiration, and purify the indoor circulating air, thereby increasing the indoor air quality and improving the comfort of the indoor human body. When there is no solar radiation, close the communication between the glass cavity green plant system and the back air duct of the solar photovoltaic photothermal integrated module and close the communication between the glass cavity green plant system and the interior.

Claims (10)

1. a kind of nearly zero energy consumption building system based on accumulation of energy, it is characterised in that：The building system includes building body, modularization The green phytem system of phase-changing energy-storing decoration wall system, the glass cavity based on accumulation of energy, perpendicularly buried pipe underground tunnel air are coupled with phase-changing energy-storing System, the Solar Energy cooling and heating system based on accumulation of energy；Modularization phase-changing energy-storing decorates wall system and the green phytem system of glass cavity It is respectively arranged in the inner side and outer side of the different exterior walls of building body；

Modularization phase-changing energy-storing decoration wall system includes some mutual assembled phase-changing energy-storing decorative wall panels, every piece of phase-changing energy-storing dress The air duct and water stream channel for being built-in with energy storage materials of phase change in decorations wallboard and being passed through from energy storage materials of phase change；

Perpendicularly buried pipe underground tunnel air includes the perpendicularly buried pipe being vertically embedded in soil with phase-changing energy-storing coupled system, hangs down The two ends of direct-buried pipe connect the air inlet pipeline and air outlet pipeline resting on the ground, and the terminal and phase-changing energy-storing of air outlet pipeline respectively The air duct connection of decorative wall panels, can send into the fresh air after processing indoor；

Solar Energy cooling and heating system based on accumulation of energy includes photovoltaic and photothermal solar integral component, solar airconditioning, PCM and stored Can tank and boiler, the entrance and exit of photovoltaic and photothermal solar integral component respectively with PCM energy storage tanks, boiler and the sun Energy air-conditioning connects to form circulation loop, and photovoltaic and photothermal solar integral component produces electric energy and heat energy, electric energy using solar energy Electric power is provided for whole system operation, heat energy delivers to PCM energy storage tanks, boiler and solar airconditioning respectively；PCM energy storage tank conducts Thermal source is connected with boiler and solar airconditioning respectively；The water of solar airconditioning and boiler respectively with phase-changing energy-storing decorative wall panels Circulation road is connected, and the fresh air in the phase-changing energy-storing decoration hollow gas passage of wall system can carry out heat exchange with the fluid in water stream channel Interior is sent into afterwards, so as to meet indoor load demand, realizes the regulation to indoor temperature；Boiler connection domestic hot-water's pipe；

Vertical direction is fixed on building body exterior wall glass cavity green phytem system, the keel with cavity on ground are fixed in bottom surface Be fixed with phase-changing energy-storing plate on the inside of support, the periphery laying glass curtain wall of keel bracket, the short transverse of keel bracket cavity, it is outer Side, which is disposed with phase-transformation energy-storage tank, the cavity of keel bracket, is provided with blower fan, and plant curtain wall is disposed with the outside of phase-changing energy-storing plate, Air port to be opened/closed is respectively arranged with the top and bottom of building body exterior wall and glass curtain wall；The cavity and the sun of keel bracket Air in the back air duct connection of energy photovoltaic and photothermal integral component, cavity is in photovoltaic and photothermal solar integral component Back air duct in room is sent into by the air port on building body exterior wall after the heat that is produced by solar energy photovoltaic panel It is interior.

2. nearly zero energy consumption building system as claimed in claim 1 based on accumulation of energy, it is characterised in that：The modularization phase transformation stores The phase-changing energy-storing decorative wall panels that wall system can be decorated are the rectangular slab for having encapsulating housing, air duct and the water stream channel difference Along the non-intersect arrangement of the vertical and horizontal of encapsulating housing, air duct and water stream channel are respectively arranged in phase-changing energy-storing decorative wall panels The inner side and outer side of horizontal direction；Encapsulating housing is made using aluminum alloy materials, and air duct and water stream channel are corresponded to thereon Corresponding interface is set respectively at end positions；The interface at air duct two ends is splicing interface, the interface at water stream channel two ends For hickey, respectively by grafting side between the air duct interface and water stream channel interface of adjacent phase-changing energy-storing decorative wall panels Formula and threaded sleeve are connected as a single entity, and water inlet is connected respectively at the two ends of water stream channel after some phase-changing energy-storing decorative wall panels assembly are good House steward and return main；The mounting hole for being easy to fix with building main wall is additionally provided with encapsulating housing.

3. nearly zero energy consumption building system as claimed in claim 2 based on accumulation of energy, it is characterised in that：Some phase-changing energy-storings After decorative wall panels assembly is good, by the arrival end of the air duct and the perpendicularly buried pipe underground tunnel air and phase-changing energy-storing coupled systemes The air outlet pipeline connection of system.

4. nearly zero energy consumption building system as claimed in claim 1 based on accumulation of energy, it is characterised in that：The glass cavity is green to plant The keel bracket of system is shape steel bracket, is connected between keel bracket and the exterior wall of the building body by U-shaped steel, U Shaped steel A/F makes to form a cavity between the phase-changing energy-storing plate and building main wall；The glass curtain wall is double glazing Curtain wall, phase-changing energy-storing plate is inside and outside aluminium alloy plate and the single piece for being filled in phase-change material between two aluminium alloy plates, phase-changing energy-storing Plate is embedded on keel bracket；The phase-transformation energy-storage tank is transparent glass jar, is packaged with phase-change material, glass jar in glass jar Width by support along the keel bracket is arranged；Some phase-transformation energy-storage tanks are distributed under the short transverse of keel bracket Portion；The plant curtain wall includes green plants and culture block, and culture block is fixed on the outside of the phase-changing energy-storing plate；Plant Spray equipment is disposed with above curtain wall, spray equipment includes the feed pipe for being arranged in the plant curtain wall upper end width direction, It is evenly equipped with some nozzles on the outside of the length direction of feed pipe, the delivery port of nozzle is set below plant curtain wall towards green plants Water leg is equipped with, the end of water leg is provided through the drainpipe of the glass curtain wall；The blower fan is silent blower, described Be arranged with the top and bottom of keel bracket at the blower fan, the air port set can automatic shutter Electric air valve, it is electronic The porch of air-valve is provided with medium effeciency filter；Be provided with the outside of the glass curtain wall can automatic shutter shutter, it is described The weather shield above shutter is provided with the upside of glass curtain wall.

5. nearly zero energy consumption building system as claimed in claim 4 based on accumulation of energy, it is characterised in that：The building body arrangement There is the exterior wall of glass cavity green phytem system to include interior energy storage board, inside holding plate successively outward from interior, build main body and heat-insulation plate for external by laying bricks or stones, The U-shaped steel is connected with heat-insulation plate for external.

6. nearly zero energy consumption building system as claimed in claim 1 based on accumulation of energy, it is characterised in that：The perpendicularly buried pipe is genuine Ventilation and the perpendicularly buried pipe of phase-changing energy-storing coupled system are embedded in soil by piping shaft, including multiple U-tubes in parallel, respectively U-tube includes air down pipe, air ascending tube and bottom bend, and the upper end of air down pipe is connected with the air inlet pipeline, The upper end of air ascending tube is connected with the air outlet pipeline；The air down pipe of each U-tube and the lower end difference of air ascending tube Provided with tapered conical section, air down pipe is connected with air ascending tube in the top of conical section by communicating pipe；U-tube air The phase-change material encapsulated with cylindrical tube is hung with the longitudinal center line of ascending tube, the lower end of cylindrical tube is in the communicating pipe The phase transition temperature that place, upper end are less than phase-change material in the upper surface of the internal and external casing, cylindrical tube is incremented by successively from the bottom up；Bottom The upper end both sides of portion's bend are connected to reducer union, and reducer union includes up tapered conical section and the cylinder above it Section, the upper port of cylindrical section is docked with the lower port of the conical section and is integrated, the built-in undertaking condensed water in top of cylindrical section Funnel；Its lowest position of bottom bend is connected with drainpipe, and drainpipe is connected with draining pump after being elevated above the soil from underground；Funnel The wall gradient be more than 45o, outlet diameter be less than 10mm；The top of bottom bend is provided with level sensor.

7. nearly zero energy consumption building system as claimed in claim 6 based on accumulation of energy, it is characterised in that：On the U-tube air PVC outer tube is cased with outside the top of row pipe, insulation material and phase transformation material are disposed between outer tube and air ascending tube Material, phase-change material is placed in inner sleeve, and the two ends of inner sleeve and outer tube are connected to seal assembly；Seal assembly includes bullet The property collar, seal washer, elastic washer and sealing-plug rivet, elastic collar have two, are respectively sleeved in the air ascending tube The outer wall of outer wall and the outer tube, seal washer has two to be respectively sleeved in air ascending tube and the outer wall of outer tube corresponds to bullet Property the collar outer end, the outer end of seal washer is concordant with the outer end of outer tube and inner sleeve, and elastic washer is located at inner sleeve and outer Two seal washers are simultaneously closed in the outer end of sleeve pipe, by sealing-plug rivet that elastic washer, seal washer and elastic collar is tight It is solidified as a whole insulation material and phase-change material sealing.

8. nearly zero energy consumption building system as claimed in claim 1 based on accumulation of energy, it is characterised in that：The perpendicularly buried pipe is genuine Ventilation on the air inlet pipeline of phase-changing energy-storing coupled system with being connected with filter and dehumidifier, and perpendicularly buried pipe is connected with air outlet pipeline Phase-change material is provided with the pipe of side and outside pipe, the bottom of perpendicularly buried pipe is provided with condensation water collection and discharge line；Air intake It is connected on pipeline and air outlet pipeline on air-valve, air outlet pipeline and is connected with blower fan.

9. nearly zero energy consumption building system as claimed in claim 1 based on accumulation of energy, it is characterised in that：The solar energy hot system Pass through connecting pipe and hot water circulating pump formation circulation loop between the PCM energy storage tanks and boiler of cooling system；PCM energy storage tanks and Pass through connecting pipe and hot water circulating pump formation closed-loop path between solar airconditioning；Solar airconditioning and phase-changing energy-storing decorative wall Pass through connecting pipe formation cooling loop between plate；Supplied between boiler and phase-changing energy-storing decorative wall panels by connecting pipe formation Warm loop；Fluid between solar airconditioning and boiler and phase-changing energy-storing decorative wall panels in connecting pipe is water, miscellaneous equipment Between fluid in connecting pipe be conduction oil；Auxiliary thermal source is set respectively in PCM energy storage tanks and boiler, and boiler is connected with Water replanishing device.

10. nearly zero energy consumption building system as claimed in claim 9 based on accumulation of energy, it is characterised in that：On the PCM energy storage tanks It is provided with a₁、d₁、f₁Three entrances and b₁、c₁、e₁Three outlets, boiler has c₂、b₂、f₂Three entrances and a₂、d₂、e₂Three go out Mouthful, solar airconditioning has a₃、d₃Two entrances and b₃、c₃Two outlets；The outlet of photovoltaic and photothermal solar integral component passes through Connecting pipe and four-way valve respectively with PCM energy storage tanks a₁The c of entrance, boiler₂The a of entrance and solar airconditioning₃Entrance is connected； The b of PCM energy storage tanks₁Outlet, the d of boiler₂Outlet, the b of solar airconditioning₃Outlet passes through connecting pipe and solar energy respectively Lie prostrate the entrance connection of light-heat integration component；The c of PCM energy storage tanks₁Outlet and the b of boiler₂The a of entrance, boiler₂Outlet with The d of PCM energy storage tanks₁Entrance is connected by connecting pipe respectively；The e of PCM energy storage tanks₁Outlet and a of solar airconditioning₃Entrance, too The b of positive energy air-conditioning₃Outlet and the f of PCM energy storage tanks₁Entrance is connected by connecting pipe respectively；The c of solar airconditioning₃Outlet and room The entrance of interior radiant panel, the outlet of indoor radiant panel and the d of solar airconditioning₃Entrance is connected by connecting pipe respectively；Hot water The e of case₂Outlet and the entrance of indoor radiant panel, the outlet of indoor radiant panel and the f of boiler₂Entrance passes through connecting pipe respectively Connection, the e of boiler₂Outlet connects domestic hot-water's pipe simultaneously；

The a of PCM energy storage tanks₁Entrance and b₁Outlet, d₁Entrance and c₁Outlet, e₁Outlet and f₁Pass through spiral copper tube between entrance Connection；The a of boiler₂Outlet and b₂Entrance, c₂Entrance and d₂Outlet is connected by spiral copper tube；The a of solar airconditioning₃Enter Mouth and b₃Outlet formation heat medium passage, c₃Outlet and d₃Entrance connects to form refrigerant passage；

The c of PCM energy storage tanks₁Outlet and the b of boiler₂Connecting pipe, the e of PCM energy storage tanks between entrance₁Outlet and solar energy The a of air-conditioning₃The hot water circulating pump, photovoltaic and photothermal solar integral component are connected on connecting pipe between entrance Inlet duct on be connected with water circulating pump；

The d of PCM energy storage tanks₁Entrance and c₁Outlet, e₁Outlet and f₁Spiral copper tube between entrance connects the first temperature biography respectively A temperature sensor is provided with sensor and second temperature sensor, the boiler；

Each porch of PCM energy storage tanks, boiler and solar airconditioning is respectively connected with outside gate valve and butterfly valve, each connecting pipe and is all provided with It is equipped with heat-insulation layer.