A building ecological greening roof rainwater collection and unpowered intelligent irrigation system

Abstract

The invention provides a rainwater collection and powerless intelligent irrigation system of an ecological green roof of a building. The rainwater collection and powerless intelligent irrigation system comprises a water storage system, a rainwater collection system, a planting module system and a powerless intelligent irrigation system, wherein the water storage system comprises two water storage tanks and a communication pipe; the two water storage tanks are arranged on the roof; communication holes are formed in the bottoms of the water storage tanks; the rainwater collection system comprises a rainwater collection plate and a bracket; the rainwater collection plate is fixed on the bracket and the bracket is fixed on the roof; the planting module system comprises a vegetation layer, a planting soil layer, a filtering layer, a water accumulation and discharging layer, a root stopping layer, a roof structure layer and a planting layer supporting plate; and the irrigation system comprises a water supply pipe, drop irrigation pipes, drop irrigation pipe nozzles, a humidity sensor, a control valve and a control module. With the adoption of the rainwater collection and powerless intelligent irrigation system, water resources are saved and effective cyclic utilization of rainwater of the building roof is realized; and the participation of people is not needed so that manpower is saved and the characteristic of intelligent irrigation is represented.

Description

technical field [0001] The invention relates to a building ecological greening roof rainwater collection and non-powered intelligent irrigation system, which belongs to the transformation technology of building ecological greening roof rainwater collection and non-powered intelligent irrigation system. Background technique [0002] Building roof greening is the development of green land to space, and it is also a way to save land, 、 An effective way to open up urban space. Building roof greening has good heat insulation and energy-saving effects and ecological environment effects. Its main advantages are as follows: (1) Heat insulation and energy-saving effects: By reducing the heat transmitted from the building roof to the top-floor room, building energy consumption is reduced and the building's heat and humidity environment is improved. ; (2) Protection of the roof: the heat insulation effect of the green roof reduces the damage of the roof due to thermal stress, and prot...

AI Technical Summary

Problems solved by technology

[0005] The disadvantages of the first utilization mode are as follows: (1) The rainwater on the roof of the building is directly collected to the ground, the possibility of using rainwater on the roof itself is reduced, and the rainwater utilization rate is low; (2) The rainwater collection flow of the ground drainage system is increased, It is not conducive to delaying the time of rainwater collection and reducing the risk of urban floods; (3) The collection of rainwater on the ground increases the probability of rainwater being polluted by the ground and increases the capacity and load of the rainwater purification system

Although the second utilization mode overcomes some shortcomings of the first utilization mode, it also has certain limitations: (1) The rainwater storage volume on the roof is small; (2) Since the storage tank is open, the rainwater storage utilization rate It is greatly affected by the environment, and the evaporation loss of rainwater is large, so long-term storage of rainwater is not used; (3) The heat insulation performance of the simple open shallow water storage roof is not good; (4) The utilization function of roof rainwater is single

[0006] The limitations of the third utilization mode are as follows: (1) The storage and utilization rate is still low, and its applicability is poor for areas with long rainfall intervals, and external water sources need to be supplemented; (2) The rainwater passes through the planting soil layer Capillary action and the root system of the plant are transported to the plant, and the water transport capacity is low; (3) Most of the rainwater will be drained to the ground through the drainage pipe, and only a small part of the rainwater will be accumulated and used

This method has the disadvantages of being greatly affected by the environment, the amount of irrigation is unstable, and its water transport capacity is low.

The manual irrigation method realizes the irrigation of vegetation through manual operation or the use of certain tools. Its disadvantages include: (1) Special maintenance is required; (2) The amount of irrigation depends on human experience and is unstable; (3) The utilization rate of irrigation water is low, and the irrigation time is difficult to grasp

The limitations of this method, such as the use of solar radiation intensity as the start and stop signal of the water pump, cannot fully reflect the water demand of vegetation; the use of timing control devices cannot reflect the impact of rainfall on vegetation irrigation

[0008] According to the above analysis, it can be seen that in order to meet the needs of plant growth, building green roofs need to accumulate roof rainwater for irrigation, but the existing roof rainwater storage models cannot meet the needs of roof green irrigation, and the recycling rate of rainwater is low. The growth of vegetation is judged by experience. It is difficult to accurately grasp the irrigation amount and irrigation time. It is difficult to achieve precise and effective irrigation according to the growth needs of plants, and at the same time, power consumption is required.

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