Energy-saving gable wall capable of collecting and storing rainwater

By designing an energy-saving gable including rainwater collection, storage and treatment systems, the urban ‘heat island effect’ and western sun problems are solved, temperature regulation and effective utilization of water resources are achieved, and the energy-saving effect of buildings is improved.

CN119266413APending Publication Date: 2025-01-07SHANGHAI PUDONG ARCHITECTURAL DESIGN & RES INST
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Patent Information

Application Number
CN202411492250.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-10-24
Publication Date
2025-01-07

AI Technical Summary

Technical Problem

The urban ‘heat island effect’ and western sunlight phenomenon have caused the indoor temperature to rise, increase the power consumption of air conditioners and accelerate the aging of furniture and appliances, which is difficult to effectively alleviate the existing technology.

Method used

Design an energy-saving gable including roof rainwater collection module, water storage module and rainwater riser overflow pipe. The roof rainwater is treated through sewage interception, discarding, filtering and disinfection devices, and the high specific heat capacity of the water storage module can store heat to reduce temperature difference , and use the treated rainwater for greening and road watering.

Benefits of technology

It effectively alleviates the urban ‘heat island effect’ and western sunlight phenomenon, reduces the temperature difference in summer and winter, saves water resources, reduces water pollution, and improves the insulation and energy-saving effect through composite structure and modular design.

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Abstract

The invention relates to an energy-saving gable wall for collecting and storing rainwater. The energy-saving gable wall comprises a roof rainwater collecting module arranged in the gable wall, a plurality of water storage modules and a rainwater vertical pipe overflow pipe. The roof rainwater collection module is connected to the water inlet end of each water storage module through a rainwater diversion pipe, and the water outlet end of each water storage module is connected to the water outlet through a rainwater collecting pipe; the roof rainwater collecting module comprises a sewage intercepting device, a flow discarding device, a pipeline filter and a sterilizing device which are sequentially arranged from the roof rainwater receiving opening to the rainwater flow dividing pipe. According to the rainwater recycling system, the urban heat island effect and the western sunning phenomenon can be relieved, and rainwater recycling is achieved.
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Description

Technical Field

[0001] The invention relates to the technical field of building energy conservation, in particular to an energy-saving gable for collecting and storing rainwater. Background Art

[0002] Roofs and walls absorb heat quickly but have a low heat capacity, making them excellent "large heat storage devices." They absorb large amounts of solar radiation during the day and release heat at night, contributing to high urban temperatures and creating a "heat island effect." Furthermore, due to the phenomenon of western exposure, rooms facing west receive more solar radiation, resulting in higher temperatures and increased heat. This increases the power consumption of appliances like air conditioners, especially in summer. Prolonged exposure to the west can cause unbearable heat and stuffiness, accelerating the aging and damage of furniture and appliances. Summary of the Invention

[0003] The purpose of the present invention is to overcome the above-mentioned urban "heat island effect" and the problems caused by western exposure and to provide an energy-saving gable for collecting and storing rainwater.

[0004] The purpose of the present invention can be achieved by the following technical solutions:

[0005] An energy-saving gable for collecting and storing rainwater, comprising a roof rainwater collection module, a plurality of water storage modules, and a rainwater riser overflow pipe arranged inside the gable;

[0006] The roof rainwater collection module is connected to the water inlet of each water storage module through a rainwater diversion pipe, and the water outlet of each water storage module is connected to the water outlet through a rainwater conduit.

[0007] The roof rainwater collection module comprises a sewage interception device, a flow abandonment device, a pipeline filter and a disinfection device which are sequentially arranged from the roof rainwater receiving interface to the rainwater diversion pipe.

[0008] As a preferred technical solution, the rainwater diversion pipe is formed by bonding UV-resistant U-PVC pipes; the rainwater confluence pipe is formed by bonding UV-resistant U-PVC pipes.

[0009] As a preferred technical solution, the sewage intercepting device is made of UV-resistant U-PVC material and is provided with a detachable basket or net bag inside.

[0010] As an optimal technical solution, the flow abandonment device adopts a volumetric flow abandonment device and is provided with a flow abandonment rainwater pipe for discharging the flow abandonment rainwater.

[0011] As an optimal technical solution, the pipeline filter is made of UV-resistant U-PVC material and is equipped with a mesh filter.

[0012] As a preferred technical solution, the pore size of the sieve is 100um to 500um.

[0013] As an optimal technical solution, the disinfection device adopts a chlorination disinfection device.

[0014] As a preferred technical solution, the water storage module includes a water storage section and connecting sections located at both ends of the water storage section, and adjacent water storage modules are connected to each other via the connecting sections.

[0015] As a preferred technical solution, the connecting section of the water storage module is fixedly connected to the gable surface via an annular buckle;

[0016] The water storage section of the water storage module is horizontally provided with a groove-shaped clip, and the gable surface is provided with a horizontal protrusion matching the groove-shaped clip. The water storage module and the gable surface are fixedly connected through the cooperation of the groove-shaped clip and the protrusion.

[0017] As an optimal technical solution, the energy-saving gable adopts a connection module to replace the corresponding water storage module at the window position. The water storage module is provided with a water storage module connection port on the surface close to each water storage module, and the other surfaces are closed.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1) The energy-saving gable proposed in the present invention utilizes the characteristics of water to save energy. The present invention adopts a water storage module to utilize the large specific heat capacity of water to store a large amount of heat, effectively absorb the heat brought by the sun, stabilize the temperature changes between the wall and the room, reduce the temperature in summer or during the day, and increase the temperature in winter or at night. It can be used for gables in hot summer areas to alleviate western exposure, and can also reduce the temperature difference between day and night, which is helpful to alleviate the urban heat island effect and western exposure phenomenon.

[0020] 2) Conserving Water Resources and Reducing Urban Water Pollution: This invention collects and stores rooftop rainwater within the gable module. Simultaneously, through the installation of sewage interception, wastewater disposal, filtration, and disinfection devices, rainwater runoff pollution can be controlled. Furthermore, the outlet pressure, utilizing the roof elevation difference, can meet the water pressure requirements for greenery irrigation and road sprinkling, thus realizing the resourceful utilization of rainwater.

[0021] 3) Composite Energy Saving: After the water storage modules are mounted on the gable wall, they serve as the gable wall's insulation layer. The energy-saving gable wall's construction, from the outside in, consists of: UV-resistant U-PVC - water - UV-resistant U-PVC - air - and a solid insulation exterior wall. This patented structure rationally arranges and enriches its structural layers, resulting in a composite insulation wall structure that achieves superior insulation and energy savings compared to a single insulation wall.

[0022] 4) The components are modularized and designed with water storage modules and connection modules. The design is flexible and the construction is convenient. The water storage modules and connection modules are connected and matched. The external wall water storage modules can be increased or decreased according to the window opening conditions of the external wall. It is suitable for most gable surfaces.

[0023] 5) As an external energy-saving device, the exterior wall water storage module can be used for energy-saving renovation of existing buildings. Energy-saving renovation of existing buildings is an important part of energy conservation and carbon reduction in the construction field. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is the overall layout diagram of the rainwater collection and energy-saving gable of the present invention;

[0025] Figure 2 This is a structural diagram of the rainwater collection module of the present invention;

[0026] Figure 3 This is a schematic structural diagram of the water storage module of the present invention;

[0027] Figure 4 for Figure 3 Cross-sectional view of the middle water storage module 1-1;

[0028] Figure 5 for Figure 3 Cross-sectional view of the middle water storage module 2-2;

[0029] Figure 6 This is a schematic diagram of the connection module structure of the present invention;

[0030] The numbers in the figure are as follows: 1. Rainwater collection module, 2. Water storage module, 21. Ring buckle, 22. Groove buckle, 23. Water storage tank, 3. Connection module, 31. Water storage module connection port, 4. Rainwater diversion pipe, 5. Rainwater confluence pipe, 6. Water outlet, 7. Pipe filter, 8. Disinfection device, 9. Sewage interception device, 10. Discharge device. DETAILED DESCRIPTION

[0031] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments. This embodiment is implemented based on the technical solution of the present invention, and provides a detailed implementation method and specific operation process, but the protection scope of the present invention is not limited to the following embodiments.

[0032] In the description of the present invention, it should be noted that the terms "upper," "lower," "left," "right," "inner," "outer," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of the present invention and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation, and therefore should not be construed as limiting the present invention. The terms "mounted," "connected," and "connected" should be understood broadly, for example, to refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediary; and internal connections between two components. The specific meanings of the above terms in the present invention will be understood by those skilled in the art based on the specific circumstances. It should be noted that similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not require further definition or explanation in subsequent drawings.

[0033] The following describes some embodiments of the present invention in detail with reference to the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments may be combined with each other.

[0034] Example 1

[0035] The present invention proposes an energy-saving gable for rainwater collection and storage. By collecting and storing relatively clean rainwater from building roofs and storing it in the gable module, the urban "heat island effect" can be alleviated, and the stored rainwater can be used for outdoor greening irrigation and road sprinkling.

[0036] like Figure 1 The energy-saving gable proposed in this invention is internally equipped with a rooftop rainwater collection module 1, a water storage module 2, a connection module 3, and a rainwater riser overflow pipe. The primary application scenario is the east and west gables of a building, with the west gable being more recommended to alleviate energy consumption from west exposure. A single gable generally consists of two collection modules 1, a certain number of water storage modules 2, connection modules 3 (for gables with windows), and a rainwater riser overflow pipe. The number of water storage modules 2 is determined by the area and size of the building's gable. To achieve the purpose of rainwater storage, the number of connection modules 3 depends on the gable's window openings. At the bottom of the module is the water outlet 6.

[0037] Rainwater falls on the hardened roof and is collected into the rainwater collection module 1 through the roof slope. The roof rainwater is intercepted by the sewage interception device 9 to remove larger solid matter such as leaves. The roof rainwater with a higher initial pollutant concentration is removed by the discharge device 10 and discharged through the discharge rainwater pipe. The rainwater after the initial rainwater discharge passes through the pipe filter 7, filters out fine impurities and then flows into the DN150 rainwater diversion pipe 9, and is diverted to each water storage module 2 through the rainwater diversion pipe 9. At the window position of the gable, the corresponding water storage module 2 is replaced with a connecting module 3. Finally, the outlet of each water storage module 2 and the connecting module 3 is connected to the outlet 6 through the rainwater conduit 5, and the water discharged from each module is collected and converged to the outlet 6 through the DN150 rainwater conduit 5.

[0038] like Figure 2 As shown, the rainwater collection module 1 is provided with a sewage interception device 9, a flow abandonment device 10, a pipe filter 7, and a disinfection device 8 in sequence from the inlet for receiving roof rainwater to the water inlet end of the rainwater diversion pipe 9, which play the role of intercepting sewage, abandoning initial rainwater, and filtering rainwater to prevent the blockage of the water storage module 2. The rainwater collected by the rainwater collection module 1 can be directly used for outdoor greening irrigation and road sprinkling.

[0039] The sewage intercepting device 9 is made of UV-resistant U-PVC material and is provided with a basket or a net bag inside for intercepting larger solid matter such as leaves. The basket or the net bag can be taken out for cleaning.

[0040] Discard device 10 is made of UV-resistant U-PVC. Rooftop rainwater is a high-quality source with a relatively low discharge volume. A pre-installed volumetric discharge device with automatic control is used to discard initial runoff, which has an initial scouring effect and high pollutant concentrations. The discharge pipe is constructed of DN100 UV-resistant U-PVC and is bonded. The pipe, fittings, and joints must be able to withstand the negative pressure generated by the height of the roof flooding.

[0041] The pipe filter 7 is a mesh quick filter. The pipe is made of UV-resistant U-PVC and the mesh is made of stainless steel with a pore size of 100 to 500 μm. It is used to filter out fine impurities, further reducing the concentration of pollutants, effectively reducing the amount of subsequent chlorine addition, and preventing clogging of the water storage module 2.

[0042] The disinfection device 8 adopts a chlorination disinfection device, which automatically adds chlorine with a chlorine addition amount of 2mg / L to 4mg / L to meet the water quality requirements for greening irrigation and road sprinkling, while preventing the water storage module 2 from breeding green algae.

[0043] Rainwater diversion pipe 4 should be bonded with DN150 UV-resistant U-PVC pipe. The pipe, fittings and joints should be able to withstand the negative pressure generated by the height of the roof flooding.

[0044] Rainwater manifold 5 is made of DN150 UV-resistant U-PVC pipes. The pipes, fittings, and joints should be able to withstand the negative pressure generated by the height of the roof flooding.

[0045] The water outlet 6 utilizes the pressure of the roof height difference and the pressure-bearing capacity of the water storage module 2. The water outlet pressure of the water outlet 6 can meet the water pressure requirements of greening irrigation and road sprinkling, avoiding secondary pressurization and reducing energy waste.

[0046] like Figure 3 As shown, the water storage module 2 is made of UV-resistant U-PVC. Each water storage module 2 is 1 meter wide and 3 to 4.2 meters high, depending on the building's floor height. The water storage module 2 includes a water storage section and connecting sections at both ends. Each water storage module 2 is connected to its adjacent water storage modules 2 on the left, right, and above and below via the connecting sections.

[0047] like Figure 4 As shown, both sides of the connecting section of the water storage module 2 are fixedly connected to the gable surface through annular clips 21; the water storage section of the water storage module 2 is horizontally provided with a groove-shaped clip 22, and the gable surface is provided with a horizontal protrusion matching the groove-shaped clip 22. The water storage module 2 and the gable surface are fixedly connected through the cooperation of the groove-shaped clip 22 and the protrusion.

[0048] like Figure 5 As shown, the water storage section of the water storage module 2 contains multiple cylindrical water storage tanks 23 with a diameter of 100MM and a width arranged side by side and staggered. The capacity of a single water storage module 2 is about 250L, and the corresponding number of module combinations can be selected according to the gable facade of the building.

[0049] like Figure 6 As shown, the top surface of the connecting module 3 is provided with a water storage module connection port 31, while the bottom surface is closed. The sides of the connecting module 3 are either provided with a water storage module connection port 31 or closed, depending on whether it is to be connected to another water storage module 2 or the connecting module 3. The connecting module 3 is used to replace the corresponding water storage module 2 at the window position of the gable, leaving the corresponding window position vacant.

[0050] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0051] The above describes in detail the preferred embodiments of the present invention. It should be understood that those skilled in the art can make numerous modifications and variations based on the concepts of the present invention without inventive effort. Therefore, any technical solutions that can be derived by those skilled in the art through logical analysis, reasoning, or limited experimentation based on the concepts of the present invention and the prior art should be within the scope of protection defined by the claims.

Claims

1. An energy-saving gable for collecting and storing rainwater, characterized in that: It comprises a roof rainwater collection module (1) arranged inside the gable, a plurality of water storage modules (2) and a rainwater riser overflow pipe; The roof rainwater collection module (1) is connected to the water inlet of each water storage module (2) via a rainwater diversion pipe (4), and the water outlet of each water storage module (2) is connected to the water outlet (6) via a rainwater conduit (5). The roof rainwater collection module (1) comprises a sewage interception device (9), a flow abandonment device (10), a pipeline filter (7) and a disinfection device (8) which are arranged in sequence from the roof rainwater receiving interface to the rainwater diversion pipe (4).

2. The energy-saving gable for collecting and storing rainwater according to claim 1, characterized in that: The rainwater diversion pipe (4) is formed by bonding UV-resistant U-PVC pipes; and the rainwater converging pipe (5) is formed by bonding UV-resistant U-PVC pipes.

3. The energy-saving gable for collecting and storing rainwater according to claim 1, characterized in that: The sewage interception device (9) is made of UV-resistant U-PVC material and is provided with a detachable basket or net bag.

4. The energy-saving gable for collecting and storing rainwater according to claim 1, characterized in that: The discarded flow device (10) is a volumetric discarded flow device and is provided with a discarded rainwater pipe for discharging discarded rainwater.

5. The energy-saving gable for collecting and storing rainwater according to claim 1, characterized in that: The pipeline filter (7) is made of UV-resistant U-PVC material and is provided with a mesh filter.

6. The energy-saving gable for collecting and storing rainwater according to claim 5, characterized in that: The pore size of the sieve is 100um to 500um.

7. The energy-saving gable for collecting and storing rainwater according to claim 1, characterized in that: The disinfection device (8) is a chlorination disinfection device.

8. The energy-saving gable for collecting and storing rainwater according to claim 1, characterized in that: The water storage module (2) comprises a water storage section and connecting sections located at both ends of the water storage section, and adjacent water storage modules (2) are connected to each other via the connecting sections.

9. The energy-saving gable for collecting and storing rainwater according to claim 1, characterized in that: The connecting section of the water storage module (2) is fixedly connected to the gable surface via an annular buckle (21); The water storage section of the water storage module (2) is horizontally provided with a groove-shaped buckle (22), and the gable surface is provided with a horizontal protrusion matching the groove-shaped buckle (22); the water storage module (2) and the gable surface are fixedly connected through the matching of the groove-shaped buckle (22) and the protrusion.

10. The energy-saving gable for collecting and storing rainwater according to claim 1, characterized in that: The energy-saving gable adopts a connection module (3) to replace the corresponding water storage module (2) at the window position, and the water storage module (2) is provided with a water storage module connection port (31) on the surface close to each water storage module (2), and the other surfaces are closed.