An integrated energy storage and HVAC system based on cavity floor buildings

Abstract

A system for integrating energy storage and HVAC based on a cavity floor building, wherein the interior of a box component is a cavity, a power generation component and an oscillation component are arranged in the cavity; a compression temperature control component is arranged in the installation cavity; a hot water component is arranged in the installation cavity; an energy storage component is arranged in the installation cavity; an air outlet component is arranged in the installation cavity; and a circulation component is arranged in the installation cavity. The present invention generates electricity by adopting power generation components and hydropower generation components, and utilizes external energy such as solar energy, wind energy and hydraulic head to supply power and store electricity; a compression temperature control component is adopted to absorb indoor gas, and then heat is exchanged through the energy storage component to cool down and heat up, so as to facilitate the control of indoor temperature; gas is adopted as the energy storage material to improve the energy storage effect; the circulation component is provided to ensure the stable operation of the energy storage component; the gas around the energy storage component is blown into the room by the fan component, and for the air flow of the entire cavity, a plurality of micro fans in series or parallel can be arranged at the concealed pipe position and in the cavity to supplement the pressure.

Description

Technical Field

[0001] The present invention belongs to the technical field of building energy storage equipment, and in particular relates to an integrated energy storage and HVAC system based on a cavity floor building. Background Art

[0002] With the development of science and technology and the further promotion of solar photovoltaic panels, energy storage buildings have emerged. The buildings are designed using passive low-energy building standards, the roof uses solar photovoltaic tiles that can generate electricity, the exterior walls use integrated photovoltaic panels with solar power generation functions, or use ecological walls, and independent space is opened up in the building to store energy storage batteries. However, the more troublesome thing about energy storage buildings is that the battery components will take up more building space.

[0003] Regarding the utilization of solar energy on building roofs, the main method is the solar thermal collector system. The current roof energy storage structure system absorbs and stores solar energy through the function of solar panels, which also makes full use of the building roof space and saves land resources. However, the following problems still exist in the actual use of this device:

[0004] When using solar panels in current rooftop energy storage structure systems, most of them can only absorb the energy from sunlight that hits the panels, convert the light energy into electrical energy, and then power indoor appliances to control the room temperature through the indoor appliances. This method not only has low energy utilization, but also high energy consumption and large volume. It cannot combine power supply and heating, and cannot meet the needs of current users. Summary of the Invention

[0005] The purpose of the present invention is to provide an integrated energy storage and HVAC system based on a cavity floor building to solve the technical problems of good energy saving effect and convenient temperature control.

[0006] In order to solve the above technical problems, the specific technical solutions of the present invention are as follows:

[0007] In some embodiments of the present application, a cavity floor building energy storage and HVAC integrated system is provided, comprising:

[0008] A box body component, wherein the interior of the box body component is a cavity and the top thereof is provided with an installation cavity;

[0009] A power generation component, wherein the power generation component is arranged on one side of the box component;

[0010] an oscillating component, the oscillating component being disposed in the mounting cavity and electrically connected to the power generation component;

[0011] A compression temperature control component is provided in the installation cavity and is electrically connected to the oscillation component. The input and output ends of the compression temperature control component pass through the box component to the cavity.

[0012] A hot water component is disposed in the installation cavity and is connected to the compression temperature control component;

[0013] An energy storage component is disposed in the installation cavity and is connected to the compression temperature control component;

[0014] An air outlet component is provided in the installation cavity and passes through the installation cavity to the interior of the box component;

[0015] A circulation component is arranged in the installation cavity, and an input end and an output end thereof are connected to the energy storage component;

[0016] The power generation component generates electricity, and the oscillation component generates heat for the compression temperature control component. The generated heat is transferred to the energy storage component and the hot water component. The heat of the energy storage component enters the box component through the air outlet component. The energy storage medium in the energy storage component is circulated by the circulation component to maintain a constant pressure inside the energy storage component, so as to keep the temperature of the energy storage component constant.

[0017] Preferably, in the above-mentioned cavity floor building energy storage and HVAC integrated system, the box component is a spliced ​​structure, including:

[0018] A top cover component, wherein the top cover component is provided with a mounting cavity;

[0019] The cavity wall of the installation cavity is provided with installation areas corresponding to the partition component, the oscillation component, the energy storage component, the compression temperature control component, the hot water component, the gas outlet component, and the circulation component.

[0020] A bottom plate component, wherein the bottom plate component is arranged in parallel with the top cover component and there is a distance between the bottom plate component and the top cover component;

[0021] The side plate component is arranged between the top cover component and the bottom plate component, and forms a box structure with the top cover component and the bottom plate component.

[0022] Preferably, in the above-mentioned cavity floor building energy storage and HVAC integrated system, the circulation component is a combined structure, including:

[0023] The circulation component is a combined structure, including:

[0024] a first circulation box, the first circulation box being arranged in the installation cavity and having an input end connected to the energy storage component through a first pipe;

[0025] a second circulation box, the second circulation box being arranged in the installation cavity, the input end of the second circulation box being connected to the energy storage component via a second pipe, and the output end of the second circulation box being connected to the first circulation box via a third pipe;

[0026] The first pipeline, the second pipeline and the third pipeline are all provided with control valves; the energy storage component, the first circulation box and the second circulation box are provided with air pressure detection components, which detect the pressure value of each box through the air pressure detection components, and then control the opening and closing of the control valves on each pipeline.

[0027] Preferably, the above-mentioned cavity floor building energy storage and HVAC integrated system further comprises: a hydroelectric power generation component, wherein the hydroelectric power generation component is arranged on one side of the box component, and the water inlet and outlet of the hydroelectric power generation component are respectively connected to the hot water component through pipes, and generates electricity through the potential energy of the water drop;

[0028] A control valve is provided on the connecting pipe between the hydropower generation component and the hot water component.

[0029] Preferably, the above-mentioned cavity floor building energy storage and HVAC integrated system further comprises: a user component, wherein the user component is arranged in the cavity of the box component;

[0030] User components include:

[0031] A water-using component, which is arranged in the box component and connected to the hot water component pipeline;

[0032] The electrical component and the water-using component are arranged in the box component and are electrically connected to the oscillating component.

[0033] Preferably, in the above-mentioned cavity floor building energy storage and HVAC integrated system, the power generation component is a combined structure, including:

[0034] An energy collecting component, wherein the energy collecting component is provided on the box component;

[0035] An electric storage component is provided on the box component, an input end of the electric storage component is connected to the energy collecting component, and an output end of the electric storage component is connected to the oscillating component;

[0036] The electricity storage component is also electrically connected to the hydropower generation component.

[0037] Preferably, in the above-mentioned energy storage and HVAC integrated system based on cavity floor building, the energy storage medium in the energy storage component is gas.

[0038] Preferably, the above-mentioned cavity floor building energy storage and HVAC integration system further includes a detection component, which is arranged in the installation cavity and is used to detect the gas concentration in the installation cavity.

[0039] Preferably, the above-mentioned energy storage and HVAC integrated system based on a cavity floor building further includes a heat transfer component, which is arranged on the energy storage component and wrapped around the outside of the energy storage component.

[0040] Preferably, the above-mentioned energy storage and HVAC integrated system based on cavity floor building further includes a fan component, which is arranged in the second chamber and corresponds to the position of the energy storage component.

[0041] Preferably, for the airflow of the entire cavity, multiple micro fans connected in series or in parallel can be arranged in the cavity blind duct to supplement the pressure, or replace the traditional single high-power fan to generate a pressure difference to carry out airflow in the cavity.

[0042] Compared with the prior art, the present invention has the following advantages:

[0043] The present invention uses power generation components and hydropower generation components to generate electricity synchronously, and uses solar energy, wind energy and hydraulic head difference to supply and store electricity;

[0044] By using compression temperature control components to absorb indoor gas, and then performing heat exchange through energy storage components, the temperature is lowered or raised, making it easier to control the indoor temperature.

[0045] By using carbon dioxide as the energy storage material, the energy storage effect is improved;

[0046] The stable operation of the energy storage component is ensured by providing a circulation component;

[0047] The air around the energy storage component is blown into the room through the fan component to accelerate the temperature exchange;

[0048] By using micro fans in multiple pipes to supplement pressure and replace the original large fans, the pressure loss during the airflow of the entire system is reduced, and the space in the cavity is saved. Compared with the original large fans, the small fans in series have the advantages of low noise, easy maintenance and replacement, low cost and low energy consumption.

[0049] The present invention has the characteristics of saving space, low cost, high heat exchange efficiency, energy saving, high energy utilization rate, low noise, and small pressure loss, and makes full use of low-carbon clean energy such as solar energy and wind energy to achieve energy saving and carbon reduction or negative (zero) carbon operation of the HVAC system. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0051] Figure 1 The accompanying drawing is a schematic diagram of the cross-sectional structure of the box body component of the present invention;

[0052] Figure 2 The accompanying drawing is a schematic diagram of the overall three-dimensional structure of the present invention;

[0053] Figure 3 The accompanying drawing is a schematic diagram of the structure of the entire machine top cover component opened according to the present invention;

[0054] Figure 4 The accompanying drawing is a schematic structural diagram of the top cover component of the present invention;

[0055] Figure 5 The accompanying drawing is a schematic diagram of the top cover component of the present invention from a top view;

[0056] Figure 6 The accompanying drawing is a schematic structural diagram of the energy storage component of the present invention.

[0057] Figure 7 The accompanying drawing is a schematic diagram of the arrangement of large fans in the cavity floor system of the present invention.

[0058] Figure 8 The accompanying drawing is a schematic diagram of the arrangement of micro fans in the cavity floor system of the present invention. DETAILED DESCRIPTION

[0059] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention but are not intended to limit the scope of the present invention.

[0060] In the description of this application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0061] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. Throughout this application, unless otherwise specified, "plurality" means two or more.

[0062] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0063] In order to better understand the purpose, structure and function of the present invention, the present invention is further described in detail below with reference to the accompanying drawings.

[0064] See attached Figure 1 As shown, according to some embodiments of the present application, the following are included:

[0065] The box body part 1 is hollow inside and has a mounting cavity 111 on its top;

[0066] The box body 1 is a spliced ​​structure, which is specifically a house structure, including:

[0067] A top cover member 11, wherein the top cover member 11 is provided with a mounting cavity 111;

[0068] The top cover component 11 is specifically a top plate, which has a mounting cavity 111 thereon;

[0069] a bottom plate component 13, wherein the bottom plate component 13 is arranged parallel to the top cover component 11, and there is a distance between the bottom plate component 13 and the top cover component 11;

[0070] The bottom plate component 13 is specifically a bottom plate;

[0071] The side panel member 12 is provided between the top cover member 11 and the bottom plate member 13 , and forms a box structure with the top cover member 11 and the bottom plate member 13 .

[0072] The side panel component 12 is specifically a side panel, which is connected with the top panel and the bottom panel to form a box structure;

[0073] Furthermore, the side panel component 12 is composed of a pressure plate 121 and an insulation plate 122, wherein the upper and lower edges of the pressure plate 121 are fixedly connected to the top plate and the bottom plate respectively, and an insulation plate 122 is provided on the pressure plate 121, and the insulation plate 122 is preferably made of aerogel material.

[0074] The technical effects produced by the above technical solution are as follows: by adopting a box-type structure composed of a top cover component 11, a side panel component 12 and a bottom panel component 13, and providing an insulation plate 122 on the side panel component 12, the overall insulation effect is enhanced, and the longitudinal flow of heat is facilitated, providing a prerequisite for improving the insulation effect of the building.

[0075] See attached Figure 2-6 As shown, in one embodiment of the present application, the box component 1 structure of the above embodiment is adopted; wherein, it also includes:

[0076] a partition member 112 , the partition member 112 being disposed in the installation cavity 111 to divide the installation cavity 111 into a first cavity 1111 , a second cavity 1112 , and a third cavity 1113 ;

[0077] A power generation component 2, wherein the power generation component 2 is provided on one side of the box component 1;

[0078] The power generation component 2 is specifically a solar power generation device, a wind power generation device, etc., which is used to convert external energy such as light energy and wind energy into electrical energy;

[0079] an oscillating component 3 disposed in the first chamber 1111 and electrically connected to the power generation component 2;

[0080] The oscillating component 3 is specifically an oscillator, which is used to convert the direct current stored in the power generation component 2 into alternating current;

[0081] The compression temperature control component 4 is provided in the first chamber 1111 and is electrically connected to the oscillation component 3. The input and output ends of the compression temperature control component 4 pass through the box component 1 to the cavity;

[0082] The compression temperature control component 4 is specifically an air heat pump, which is convenient for sucking the gas in the box component 1 for compression and circulation, completing heat exchange, and then discharging it into the interior of the box component 1;

[0083] The hot water component 5 is provided in the first chamber 1111 and is connected to the compression temperature control component 4;

[0084] The hot water component 5 is specifically a water heater, which exchanges heat with the gas absorbed by the air heat pump to heat the cold water in the water heater. After the heat exchange is completed, the gas returns to the air heat pump and enters the room.

[0085] An energy storage component 6, which is disposed in the second chamber 1112 and connected to the compression temperature control component 4;

[0086] The energy storage component 6 is specifically a sealed box, which is also provided with a heat transfer pipe 62. The box contains a heat storage medium of CO2, and the heat transfer pipe 62 is connected to the output end of the air heat pump. The CO2 in the box exchanges heat with the gas in the heat transfer pipe 62 to perform energy storage operation.

[0087] An air outlet component 7 is provided in the second chamber 1112 and passes through the second chamber 1112 to the interior of the box component 1;

[0088] The air outlet component 7 is specifically an air outlet window, which facilitates the air with a certain temperature at the energy storage component 6 to enter the box component 1 through the air outlet window;

[0089] The circulation component 8 is disposed in the third chamber 1113, and its input end and output end are connected to the energy storage component 6;

[0090] The circulation component 8 is specifically a circulation pipe structure, which is connected to the energy storage component 6 by a pipe to maintain the pressure of CO2 in the energy storage component 6 constant to avoid excessive internal pressure and potential safety hazards;

[0091] The cavity wall of the installation cavity 111 is provided with installation areas corresponding to the partition component 112, the oscillation component 3, the energy storage component 6, the compression temperature control component 4, the hot water component 5, the gas outlet component 7, and the circulation component 8;

[0092] The hot water component 5 and the energy storage component 6 are connected to the compression temperature control component 4 through different connecting pipelines, and control valves are provided on the pipelines.

[0093] The technical effect produced by the above technical solution is as follows: external energy is converted into electrical energy through the power generation component 2, and then the compression temperature control component 4 works to perform preliminary temperature control so as to exchange heat with the energy storage component 6 and the water heater. By using gas as the heat storage medium in the energy storage component 6, for example, carbon dioxide, carbon dioxide is not only low-cost and easy to collect, but also has an entropy value of 213.7 J / K*mol and an enthalpy value of -393.5 KJ / mol, the energy storage effect is better, which provides a prerequisite for improving the overall temperature control effect.

[0094] In one embodiment of the present application, the structures of the above embodiments are adopted; wherein the circulation component 8 is a combined structure, including:

[0095] A first circulation box 81 is provided in the third chamber 1113 , and an input end thereof is connected to the energy storage component 6 via a first pipe 83 ;

[0096] The second circulation box 82 is provided in the third chamber 1113 , the input end of which is connected to the energy storage component 6 via the second pipe 84 , and the output end of which is connected to the first circulation box 81 via the third pipe 85 ;

[0097] The first pipe 83, the second pipe 84, and the third pipe 85 are all provided with control valves; the energy storage component 6, the first circulation box 81, and the second circulation box 82 are provided with air pressure detection components, which detect the pressure values ​​of each box and then control the opening and closing of the control valves on each pipe;

[0098] Specifically, when the pressure in the energy storage component 6 is too high, the control valve of the first pipe 83 of the first circulation box 81 and the control valves of the second pipe 84 and the third pipe 85 of the second circulation box 82 are opened, and the gas in the energy storage component 6 is discharged into the first circulation box 81 and the second circulation box 82, so that the gas pressure in the energy storage component 6, the first circulation box 81 and the second circulation box 82 is consistent; when the pressure in the energy storage component 6 is lower than the threshold value, the control valve of the first pipe 83 of the first circulation box 81 and the control valves of the second pipe 84 and the third pipe 85 of the second circulation box 82 are opened to replenish the gas in the first circulation box 81 and the second circulation box 82 into the energy storage component 6, so as to keep the pressure in the energy storage component 6 consistent with that in the first circulation box 81 and the second circulation box 82.

[0099] The technical effect produced by the above technical solution is: the gas pressure in the energy storage component 6 is maintained constant through the circulation component 8, ensuring the stability of the energy storage effect, thereby improving the safety and stability of the whole machine, and providing a prerequisite for improving the temperature control effect.

[0100] In one embodiment of the present application, the various structures of the above embodiments are adopted; wherein, it further includes: a hydroelectric power generation component 10, which is arranged on one side of the box component 1, and its water inlet and water outlet are respectively connected to the hot water component 5 through pipes, and generates electricity through the potential energy of the water drop;

[0101] A control valve is provided on the connecting pipe between the hydropower generation component 10 and the hot water component 5 .

[0102] The hydroelectric power generation component 10 is specifically a hydroelectric generator, which generates electricity by utilizing the water level difference, and the generated electricity is stored in the power generation component 2, thereby further enhancing the energy utilization rate of the entire machine and reducing energy consumption.

[0103] The hot water component 5 supplies water to the hydroelectric power generation component 10 on the ground through a pipeline. The power generation per unit time is:

[0104] The electrical energy generated per unit time is calculated using the law of conservation of energy. The specific formula is: gravitational potential energy of water * efficiency of turbine generator = electrical energy generated.

[0105] The gravitational potential energy of water per unit time is calculated according to formula (1):

[0106]

[0107] In formula (1), ρ0 is the density of water, which is 1×103kg / m3; v m is the water velocity, which is 0.1m / s; S is the flow area of ​​water. When it flows through the pipe, S=π(d / 2)2, the unit is (m 2 ), where π is 3.1415, d is the diameter of the pipe, which is 20 mm, and g is the acceleration due to gravity, which is 9.8 m / s 2 ; t is the time of this process, in (s).

[0108] The electric energy generated per unit time is calculated according to formula (2):

[0109] W=E p η1η2 (2)

[0110] In formula (2), η1 is the efficiency of converting gravitational potential energy into mechanical energy, which is 0.8; η2 is the efficiency of converting mechanical energy into electrical energy, which is 0.985.

[0111] In a certain embodiment of the present application, the various structures in the above embodiments are adopted; wherein, it further includes: a user component, the user component is arranged in the cavity of the box component 1;

[0112] User components include:

[0113] A water-using component, which is arranged in the box component 1 and is connected to the hot water component 5 through a pipe;

[0114] Water-using components are specifically indoor pipes, including: faucets, bathtubs and other water-using devices;

[0115] The water-using component is provided in the box body 1 and is electrically connected to the oscillating component 3;

[0116] The electrical components are specifically electrical devices.

[0117] The technical effects produced by the above technical solution are: by using the water component to use the hot water in the hot water component 5, the loss of separate heating is reduced; by using the electrical component to use the electric energy stored in the power generation component 2, the use of external power supply is reduced, the energy utilization rate is improved, and the cost is reduced.

[0118] In one embodiment of the present application, the structures of the above embodiments are adopted; wherein the power generation component 2 is a combined structure, including:

[0119] An energy collecting component, wherein the energy collecting component is provided on the box component 1;

[0120] The energy collecting component is specifically a device that converts external energy into electrical energy, such as a solar power generation device and a wind turbine;

[0121] An electric storage component is provided on the box component 1, an input end of the electric storage component is connected to the energy collecting component, and an output end of the electric storage component is connected to the oscillating component 3;

[0122] The electricity storage component is also electrically connected to the hydropower generation component 10 .

[0123] In a certain embodiment of the present application, the various structures in the above embodiments are adopted; wherein, a detection component is also included, and the detection component is arranged in the second chamber 1112 for detecting the gas concentration in the second chamber 1112.

[0124] The technical effect produced by the above technical solution is: the carbon dioxide gas concentration in the second chamber 1112 is detected by the detection component, so that gas leakage of the energy storage component 6 can be detected and repaired in time, thereby improving the stability of the operation of the whole machine.

[0125] In one embodiment of the present application, the various structures of the above embodiments are adopted, and further comprising a heat transfer component 61, which is provided on the energy storage component 6 and wrapped around the outside of the energy storage component 6. The heat transfer component 61 is specifically a plate structure made of metal material, which is wrapped around the outside of the energy storage component 6 to facilitate heat conduction and improve the heat transfer effect.

[0126] In one embodiment of the present application, the various structures of the above embodiments are adopted, wherein the fan component 9 is disposed in the second chamber 1112, corresponding to the position of the energy storage component 6. The fan component 9 is specifically a driving fan. By turning on the fan, the gas at the energy storage component 6 is blown into the gas outlet component 7 and then into the interior of the box component 1, thereby accelerating heat exchange and improving the overall temperature control effect.

[0127] The heat calculation method of the gas in the energy storage component 6 is as follows (taking the gas using carbon dioxide release / absorption for heat supply as an example):

[0128] The calculation is performed using the heat transfer method. The heating heat load includes the heat consumption of the box component 1 structure and the heat consumption of the cold air penetrating into the house through doors, windows, holes, etc.; without considering the impact of human body heat consumption on the heat load of the house, the equation for heat release and heat load is: heat dissipation of building energy storage device = heat consumption of room envelope structure + heat consumption of cold air penetrating into the house through doors, windows, holes, etc.

[0129] Heat consumption of box component 1 structure

[0130] The heat consumption of the box body 1 includes the inner enclosure and the outer enclosure; the heat consumption of the outer enclosure structure of the room is calculated according to formula (3);

[0131] Assume that there is no temperature difference in the room and the temperature of each room is equal, then Q内围护 =0, Q1=Q 外围护 +Q 内围护 ;

[0132]

[0133] Where t0 is the calculated outdoor temperature in winter (℃), t1 is the calculated indoor temperature in winter (℃); A i is the area of ​​the outer guardrail structure on the i-th surface (m 2 ); is the thermal conductivity resistance of the external protective structure ((m 2 ·K) / W), δ is the wall thickness (m), and λ is the thermal conductivity of the wall (W / (m·K)); is the heat transfer damping of the inner surface of the external protective structure ((m 2 K) / W); is the heat transfer damping of the outer surface of the external protective structure, which is 0.0429W / (m 2 K);

[0134] Where a i =a1+a2, where a1 is the heat transfer coefficient of the inner surface of the external protective structure (W / (m 2 K)), a2 is the radiation heat transfer coefficient of the inner surface of the external protective structure, which is 4.04W / (m 2 K);

[0135] The value of a1 is: a1=1.873(t1-t x ) 0.3 / h 0.05 , where t x is the inner surface temperature of the external protective structure (℃), (t1-t x ) / K1=(t1-t0) / K2, we get t x =t1-(t1-t0) / K2. K1 is the total heat transfer coefficient of the external protective structure, which is 31.7(W / (m 2 K)), K2 is the total heat transfer coefficient of the inner surface of the external protective structure (W / (m 2 K)), take 9.09W / (m 2 K); h is the height of the inner surface of the external protective structure (m);

[0136] Heat loss from cold air that seeps into the house through holes in doors and windows

[0137] Use the crack method to calculate the heat consumption of cold air that penetrates into the house through door and window holes:

[0138] Heat consumption of cold air penetration Q f Calculate according to formula (4):

[0139] Qf =0.278V n C p ρ w (t1-t0) (4)

[0140] Where V n is the amount of cold air infiltration (L / h); C p is the constant pressure specific heat capacity of cold air = 1KJ / (kg·℃); ρ w The air density at the heating outdoor temperature (kg / m 3 );

[0141] Where V n =Lln where L is the amount of cold air that penetrates into the room per meter of crack (L / m), l is the calculated length of the crack (m), and n is the correction factor for the direction of the infiltrated cold air. n = 1 is taken for the side with the largest wind direction.

[0142] Energy storage device releases heat (taking CO2 as energy storage material as an example)

[0143] Calculate the heat released by the energy storage device according to formula (5):

[0144] Q2=Cρ c V m (t a -t b ) (5)

[0145] Where Q2 is the energy released by the energy storage device, C is the specific heat capacity of the energy storage material. When the energy storage material is CO2, its specific heat capacity is 1.295KJ / (kg·℃); ρ c is the density of the energy storage material. When the energy storage material is CO2, the gas density is 1.997g / L, the liquid density is 0.9295kg / L, and the solid density is 1.56kg / L. m The volume of the energy storage device is generally 1m×1m×400mm. a is the temperature after exotherm, t b Is the temperature before heat release. Q2=Q1+Q f .

[0146] See attached Figure 7-8 As shown, in a certain embodiment of the present application, each structure in the above embodiment is adopted;

[0147] Among them, Figure 7As shown, a large-scale fan 10000 is installed at the air inlet of the cavity pipe 10004 to replenish the pressure of the floor cavity. The cavity pipe 10004 connects the various floor cavities in series, and the air flow is discharged through the air outlet 10003 after passing through the cavity. The pressure loss in the pipe is serious. At the same time, if the large-scale fan 10000 is damaged, the entire ventilation system will fail, and the integrated system based on cavity floor building energy storage will not be able to operate normally; the traditional large-scale fan 10000 not only makes serious noise when in use, but also has high requirements for the power system. The power system is complex, the current and voltage are large, and the control system, protection measures and overall project cost are high. The use of external energy generation alone cannot meet the use of large-scale fans, and the energy consumption is too high, affecting the overall stability of the system.

[0148] like Figure 8 As shown, multiple micro fans 10002 can be arranged in series or parallel within the cavity duct to supplement the pressure, replacing a single large-power fan to generate a pressure difference to promote airflow within the cavity. This not only saves space, but also eliminates the need for a separate fan room, reducing costs. Furthermore, the micro fans 10002 are arranged in a decentralized manner to supplement the airflow pressure within the duct, thereby reducing airflow losses, increasing airflow efficiency, and significantly reducing noise pollution. If individual micro fans 10002 are damaged, the decentralized arrangement will not cause the entire system to fail, greatly increasing system reliability and making repair and replacement more convenient. Furthermore, the micro fans 10002 have lower requirements for the power system (such as voltage) and can fully utilize clean, low-carbon energy such as solar energy, wind energy, and energy storage electricity, contributing to energy conservation and carbon reduction in the HVAC sector.

[0149] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. Reference can be made to the common and similar parts between the various embodiments. For the devices disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple, and the relevant parts can be referred to the method description.

[0150] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An integrated energy storage and HVAC system based on a cavity floor building, characterized in that: include: A box body component, wherein the interior of the box body component is a cavity and the top thereof is provided with an installation cavity; a partition member, the partition member being arranged in the installation cavity and dividing the installation cavity into a first cavity, a second cavity and a third cavity; A power generation component, wherein the power generation component is arranged on one side of the box component; an oscillating component, the oscillating component being disposed in the mounting cavity and electrically connected to the power generation component; A compression temperature control component is provided in the installation cavity and is electrically connected to the oscillation component. The input and output ends of the compression temperature control component pass through the box component to the cavity. A hot water component is disposed in the installation cavity and is connected to the compression temperature control component; An energy storage component is disposed in the installation cavity and is connected to the compression temperature control component; An air outlet component is provided in the installation cavity and passes through the installation cavity to the interior of the box component; A circulation component is arranged in the installation cavity, and an input end and an output end thereof are connected to the energy storage component; The external energy is converted into electrical energy through the power generation component, the oscillation component converts the direct current in the power generation component into alternating current, and the compression temperature control component is powered by the oscillation component. The compression temperature control component works to control the temperature, and the heat generated is transferred to the energy storage component and the hot water component. The heat of the energy storage component enters the box component through the air outlet component; wherein, the energy storage medium in the energy storage component is circulated by the circulation component to maintain a constant pressure inside the energy storage component, so as to keep the temperature of the energy storage component constant.

2. The energy storage and HVAC integrated system based on cavity floor building according to claim 1 is characterized in that: The box body is a spliced ​​structure, including: A top cover component, wherein the top cover component is provided with a mounting cavity; The cavity wall of the installation cavity is provided with installation areas corresponding to the partition component, the oscillation component, the energy storage component, the compression temperature control component, the hot water component, the gas outlet component, and the circulation component; A bottom plate component, wherein the bottom plate component is arranged in parallel with the top cover component and there is a distance between the bottom plate component and the top cover component; The side plate component is arranged between the top cover component and the bottom plate component, and forms a box structure with the top cover component and the bottom plate component.

3. The energy storage and HVAC integrated system based on cavity floor building according to claim 1 is characterized in that: The circulation component is a combined structure, including: The circulation component is a combined structure, including: a first circulation box, the first circulation box being arranged in the installation cavity and having an input end connected to the energy storage component through a first pipe; a second circulation box, the second circulation box being arranged in the installation cavity, the input end of the second circulation box being connected to the energy storage component via a second pipe, and the output end of the second circulation box being connected to the first circulation box via a third pipe; The first pipeline, the second pipeline and the third pipeline are all provided with control valves; the energy storage component, the first circulation box and the second circulation box are provided with air pressure detection components, which detect the pressure value of each box through the air pressure detection components, and then control the opening and closing of the control valves on each pipeline.

4. The energy storage and HVAC integrated system based on cavity floor building according to claim 1 is characterized in that: Also includes: A hydroelectric power generation component is provided on one side of the box component, wherein the water inlet and outlet of the hydroelectric power generation component are respectively connected to the hot water component through pipes, and generates electricity through the potential energy of the water drop; A control valve is provided on the connecting pipe between the hydropower generation component and the hot water component.

5. The energy storage and HVAC integrated system based on cavity floor building according to claim 1 is characterized in that: Also includes: a user component, the user component being disposed in the cavity of the box component; User components include: A water-using component, which is arranged in the box component and connected to the hot water component pipeline; The electrical component and the water-using component are arranged in the box component and are electrically connected to the oscillating component.

6. The energy storage and HVAC integrated system based on cavity floor building according to claim 1 is characterized in that: The power generation component is a combined structure, including: An energy collecting component, wherein the energy collecting component is provided on the box component; An electric storage component is provided on the box component, an input end of the electric storage component is connected to the energy collecting component, and an output end of the electric storage component is connected to the oscillating component; The electricity storage component is also electrically connected to the hydropower generation component.

7. The energy storage and HVAC integrated system based on cavity floor building according to claim 1 is characterized in that: The energy storage medium in the energy storage component is gas.

8. The energy storage and HVAC integrated system based on cavity floor building according to claim 1 is characterized in that: It also includes a detection component, which is arranged in the installation cavity and is used to detect the gas concentration in the installation cavity.

9. The energy storage and HVAC integrated system based on cavity floor building according to claim 1 is characterized in that: It also includes a heat transfer component, which is arranged on the energy storage component and wrapped around the outside of the energy storage component.

10. The energy storage and HVAC integrated system based on cavity floor building according to claim 1 is characterized in that: The fan component is arranged in the installation cavity and corresponds to the position of the energy storage component.

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