Underground space rainwater drainage and recovery system suitable for sponge city
By designing a rainwater drainage recovery system in the underground space including permeable fabric layer, drainage plate, permeable water collection pipe, breathable pipe, rainwater storage tank, outer drain pipe and controller, the problem of difficulty in removing permeable water in the basement soil layer is solved. , realizes automated rainwater drainage and recycling, meeting the peak-off emission requirements of sponge cities.
Patent Information
- Application Number
- CN202421133849.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-22
- Publication Date
- 2025-02-11
- Estimated Expiration
- 2034-05-22
AI Technical Summary
The prior art cannot effectively and proactively remove permeable water from the basement soil layer, resulting in leakage of pressure water on the roof, and is not efficient in rainwater drainage recovery, which may lead to water overflow.
An underground space rainwater drainage recovery system including a permeable fabric layer, drainage plate, permeable water collection pipe, breathable pipe, rainwater storage tank, outer drain pipe and controller is designed. The permeable fabric layer and drainage plate combine to collect permeable water. The breathable pipe maintains the air pressure balance in the permeable water collection pipe. The rainwater storage tank and the outer drain pipe realize automatic drainage. The controller controls the drainage process through the water pressure sensor.
Effectively prevent soil loss, realize the transformation of the roof from disordered and unorganized drainage to zero-slope organized drainage, reduce manpower, avoid rainwater overflow, achieve the peak-off emission requirements of sponge cities, and complete the preliminary purification of rainwater.
Smart Images
Figure CN222456038U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of sponge city construction, and more specifically, to an underground space rainwater drainage and recycling system suitable for sponge cities. Background Art
[0002] The seepage water in the soil layer can easily cause water leakage in the basement under the action of gravity. At present, the waterproofing measures for the top slabs of large underground spaces with zero slope are mainly passive waterproofing by using waterproof materials and water storage wells. It is impossible to actively remove the seepage water and reduce the water pressure in the soil layer. Not only is the drainage and recycling of rainwater insufficient, but it may also cause water leakage. After the traditional water collection well collects the seeping groundwater in the well, it needs to be manually pumped out of the well. Not only does it require manpower, but it may also fail to discharge the water in time, resulting in water overflow. Utility Model Content
[0003] The present application provides an underground space rainwater drainage recovery system suitable for sponge cities, which reduces or eliminates water leakage caused by top plate pressure water by organizing the collection and directional discharge of infiltrated water.
[0004] This application is implemented as follows:
[0005] The present application provides an underground space rainwater drainage recovery system suitable for sponge cities, comprising:
[0006] a water-permeable fabric layer, wherein the water-permeable fabric layer is arranged below the soil layer;
[0007] A drainage board, the drainage board is arranged under the water-permeable fabric layer;
[0008] A permeate water collecting pipe, the permeate water collecting pipe is arranged between the drainage board and the water-permeable fabric layer, and the permeate water collecting pipe is provided with a water inlet so that the water from the drainage board can enter the permeate water collecting pipe through the water inlet;
[0009] A ventilation pipe, the ventilation pipe is vertically installed and communicated with the permeate water collecting pipe, and one end of the ventilation pipe is communicated with the atmosphere;
[0010] A rainwater storage tank, the rainwater storage tank is connected to the permeate water collection pipe;
[0011] an external discharge pipe, the external discharge pipe being in communication with the rainwater storage tank and the external discharge pipe being provided with a valve; and
[0012] A controller is used to control the valve switch to control the external discharge pipe to discharge water outwards.
[0013] In a possible implementation scheme, the valve is an electric valve, and a water pressure sensor is provided on the top of the rainwater storage tank. The water pressure sensor is electrically connected to the electric valve and the controller. The controller can receive the signal from the water pressure sensor and control the switch of the electric valve according to the signal information of the water pressure sensor.
[0014] In a possible implementation manner, the electric valve is an electric butterfly valve.
[0015] In a possible implementation manner, an observation well is further provided between the rainwater storage tank and the infiltration water collection pipe, and the observation well is connected to both the rainwater storage tank and the infiltration water collection pipe.
[0016] In a possible implementation manner, the infiltration water collection pipe and the observation well are connected via a drainage pipe, and the observation well and the rainwater storage tank are connected via a connecting pipe.
[0017] In a possible implementation manner, a filter is provided inside the rainwater storage tank.
[0018] In a possible implementation, the drainage plate is provided with a drainage groove, a plurality of water inlets are evenly arranged on the side of the permeate water collecting pipe, the drainage groove is vertically arranged to the permeate water collecting pipe, and the water inlet is connected to the drainage groove.
[0019] In a possible implementation manner, the bottom surface of the permeated water collecting pipe is installed on the drainage board.
[0020] In a possible embodiment, the water-permeable fabric layer is a geotextile.
[0021] In a possible implementation manner, one end of the external drainage pipe is connected to the artificial lake.
[0022] This application has at least the following beneficial effects:
[0023] The present application is applicable to the underground space rainwater drainage and recycling system of the sponge city. The permeable fabric layer is arranged under the soil layer, and the drainage board is arranged under the permeable fabric layer, which can effectively prevent soil loss. By installing a breathable pipe, the air pressure in the seepage water collection pipe is guaranteed to be consistent with the atmospheric pressure, so that a pressure difference is formed between it and the pressure water at the bottom of the soil, and the seepage water is guided to flow into the seepage water collection pipe, so that the top plate is transformed from disordered and unorganized drainage to zero-slope organized drainage. The controller controls the valve to open so that the water in the rainwater storage tank is discharged from the external discharge pipe, which can realize automatic drainage, reduce manpower, avoid possible rainwater overflow in the rainwater storage tank, meet the requirements of peak-shifting discharge of sponge cities, and complete the preliminary purification of rainwater. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.
[0025] Figure 1 This is a schematic diagram of the structure of the underground space rainwater drainage recovery system of the embodiment of the present application;
[0026] Figure 2 This is a schematic diagram of the structure of the drainage board according to an embodiment of the present application.
[0027] Icons: 11-permeable fabric layer; 12-drainage board; 121-drainage trough; 13-seepage water collection pipe; 131-water inlet; 14-ventilation pipe; 15-rainwater storage tank; 16-external discharge pipe; 17-observation well; 18-drainage pipe; 19-connecting pipe. DETAILED DESCRIPTION
[0028] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.
[0029] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.
[0030] In the description of the present application, it should be noted that the terms "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the product of the application is usually placed when in use. They are only for the convenience of describing the present 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 should not be understood as a limitation on the present application.
[0031] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "disposed" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances. Example
[0032] This embodiment provides an underground space rainwater drainage recovery system suitable for sponge cities. Figure 1 The utility model comprises a water-permeable fabric layer 11, a drainage board 12, a permeated water collecting pipe 13, a ventilation pipe 14, a rainwater storage tank 15, an external discharge pipe 16 and a controller.
[0033] The permeable fabric layer 11 is arranged under the soil layer, and the drainage board 12 is arranged under the permeable fabric layer 11. The permeable fabric layer 11 is a geotextile, which can effectively prevent soil loss. In addition, the infiltrated water passes through the permeable fabric layer 11 and enters the drainage board 12 to be collected.
[0034] The seepage water collection pipe 13 is arranged between the drainage board 12 and the water-permeable fabric layer 11. For example, the bottom surface of the seepage water collection pipe 13 is installed on the drainage board 12. The seepage water collection pipe 13 is provided with a water inlet 131, so that the water of the drainage board 12 can enter the seepage water collection pipe 13 through the water inlet 131. The air pipe 14 is installed vertically, and the bottom end of the air pipe 14 passes through the soil layer and communicates with the seepage water collection pipe 13, and the upper end of the air pipe 14 is connected to the atmosphere. By installing the air pipe 14, it is ensured that the air pressure in the seepage water collection pipe 13 is consistent with the atmospheric pressure, so that a pressure difference is formed between it and the pressure water at the bottom of the soil, and the seepage water is guided to flow into the seepage water collection pipe 13, so as to realize the transformation of the top plate from disordered and unorganized drainage to zero-slope organized drainage.
[0035] Exemplarily, the drain plate 12 is provided with a drain groove 121 (refer to Figure 1 and Figure 2 ), multiple water inlets 131 are evenly arranged on the side of the permeate water collecting pipe 13, the drainage groove 121 is vertically arranged with the permeate water collecting pipe 13, and the water inlet 131 is connected with the drainage groove 121. Then the water collected by the drainage board 12 can enter the permeate water collecting pipe 13 from the water inlet 131 through the drainage groove 121.
[0036] The rainwater storage tank 15 is connected to the infiltration water collection pipe 13, and the external discharge pipe 16 is connected to the rainwater storage tank 15. The external discharge pipe 16 is provided with a valve, and the controller is used to control the valve switch to control the external discharge pipe 16 to discharge water outward.
[0037] The controller controls the valve to open so that the water in the rainwater storage tank 15 is discharged from the external discharge pipe 16, so that automatic drainage can be achieved, manpower is reduced, and the possible overflow of rainwater in the rainwater storage tank 15 is avoided, the requirements of the peak-shifting discharge of the sponge city are met, and the preliminary purification of rainwater is completed. Optionally, a filter is provided inside the rainwater storage tank 15 to filter out impurities such as soil when draining.
[0038] The valve is an electric valve, a water pressure sensor is provided on the top of the rainwater storage tank 15, the water pressure sensor is electrically connected to the electric valve and the controller, and the controller can receive a signal from the water pressure sensor and control the switch of the electric valve according to the signal information of the water pressure sensor. Optionally, the electric valve is an electric butterfly valve.
[0039] When rainwater reaches the top of the rainwater storage tank 15, the water pressure sensor transmits a water pressure signal to the controller, and the controller controls the electric butterfly valve to open the valve for drainage according to the signal information, and the rainwater in the rainwater storage tank 15 is discharged through the external discharge pipe 16, thereby realizing automatic drainage. In addition, the electric butterfly valve can also be manually opened for active drainage to avoid long-term water accumulation in the rainwater storage tank 15.
[0040] Optionally, one end of the external discharge pipe 16 is connected to the artificial lake, and the rainwater in the rainwater storage tank 15 is discharged into the artificial lake through the external discharge pipe 16. The rainwater is used as landscape water, realizing the recycling and utilization of rainwater.
[0041] Furthermore, an observation well 17 is provided between the rainwater storage tank 15 and the seepage water collection pipe 13, and the observation well 17 is connected to both the rainwater storage tank 15 and the seepage water collection pipe 13. The seepage water collection pipe 13 is connected to the observation well 17 through a drainage pipe 18, and the observation well 17 is connected to the rainwater storage tank 15 through a connecting pipe 19. The collection of seepage water can be observed through the observation well 17, and the water in the observation well 17 can also be discharged into the rainwater storage tank 15 through the drainage pipe 18 to prevent the water in the observation well 17 from overflowing.
[0042] The working principle of the underground space rainwater drainage recovery system applicable to sponge cities in this embodiment is as follows:
[0043] (1) When it rains, rainwater passes through the soil and the permeable fabric layer 11 and reaches the drainage board 12;
[0044] (2) The permeated water on the drainage plate 12 flows into the permeated water collecting pipe 13 from the water inlet 131 on the side of the permeated water collecting pipe 13 due to the pressure difference.
[0045] (3) Under the action of gravity, the water in the infiltration water collection pipe 13 enters the observation well 17 through the drainage pipe 18, and then flows into the rainwater storage tank 15 through the connecting pipe 19.
[0046] (4) When rainwater reaches the top of the rainwater storage tank 15, the water pressure sensor transmits a water pressure signal to the controller. The controller controls the electric butterfly valve to open the valve for drainage based on the signal information. The rainwater in the rainwater storage tank 15 is discharged into the artificial lake through the external discharge pipe 16.
[0047] It can not only realize automatic drainage and reduce manpower, but also avoid possible rainwater overflow in the rainwater storage tank 15, thus meeting the requirements of peak-shifting discharge in sponge cities.
[0048] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. An underground rainwater drainage recovery system suitable for sponge cities, characterized in that: include: a water-permeable fabric layer, wherein the water-permeable fabric layer is arranged below the soil layer; A drainage board, the drainage board is arranged under the water-permeable fabric layer; A permeate water collecting pipe, the permeate water collecting pipe is arranged between the drainage board and the water-permeable fabric layer, and the permeate water collecting pipe is provided with a water inlet so that the water from the drainage board can enter the permeate water collecting pipe through the water inlet; A ventilation pipe, the ventilation pipe is vertically installed and communicated with the permeate water collecting pipe, and one end of the ventilation pipe is communicated with the atmosphere; A rainwater storage tank, the rainwater storage tank is connected to the permeate water collection pipe; an external discharge pipe, the external discharge pipe being in communication with the rainwater storage tank and the external discharge pipe being provided with a valve; and A controller is used to control the valve switch to control the external discharge pipe to discharge water outwards.
2. The underground space rainwater drainage recovery system suitable for sponge cities according to claim 1 is characterized in that: The valve is an electric valve. A water pressure sensor is provided on the top of the rainwater storage tank. The water pressure sensor is electrically connected to the electric valve and the controller. The controller can receive the signal from the water pressure sensor and control the switch of the electric valve according to the signal information of the water pressure sensor.
3. The underground space rainwater drainage recovery system suitable for sponge cities according to claim 2 is characterized in that: The electric valve is an electric butterfly valve.
4. The underground space rainwater drainage recovery system suitable for sponge cities according to any one of claims 1 to 3, characterized in that: An observation well is also provided between the rainwater storage tank and the infiltration water collection pipe, and the observation well is communicated with both the rainwater storage tank and the infiltration water collection pipe.
5. The underground space rainwater drainage recovery system suitable for sponge city according to claim 4 is characterized in that: The infiltration water collection pipe is connected to the observation well through a drainage pipe, and the observation well is connected to the rainwater storage tank through a connecting pipe.
6. The underground space rainwater drainage recovery system suitable for sponge cities according to any one of claims 1 to 3, characterized in that: A filter is arranged inside the rainwater storage tank.
7. The underground space rainwater drainage recovery system suitable for sponge cities according to any one of claims 1 to 3, characterized in that: The drainage plate is provided with a drainage groove, and a plurality of water inlets are evenly arranged on the side of the permeate water collecting pipe. The drainage groove is vertically arranged to the permeate water collecting pipe, and the water inlet is connected to the drainage groove.
8. The underground space rainwater drainage recovery system suitable for sponge cities according to claim 7 is characterized in that: The bottom surface of the permeated water collecting pipe is installed on the drainage board.
9. The underground space rainwater drainage recovery system suitable for sponge cities according to any one of claims 1 to 3, characterized in that: The permeable fabric layer is geotextile.
10. The underground space rainwater drainage recovery system suitable for sponge cities according to any one of claims 1 to 3, characterized in that: One end of the external discharge pipe is communicated with the artificial lake.