Sponge urban road rainwater sewage interception and purification system

Abstract

The invention relates to the field of rainwater collection and utilization, in particular to a sponge urban road rainwater sewage interception and purification system, and aims to solve the problem that the rainwater collection and purification effect is affected due to the fact that a sewage interception system is prone to being blocked and not easy to find in the rainwater collection process. Comprising a separate well collection unit, a sewage interception estimation unit, a water storage statistics unit, a collection early warning unit and a purification distribution unit. Statistical analysis is carried out on the collection conditions of the catch basins distributed in a certain area, and dynamic analysis is carried out according to real-time rainwater collection data and historical rainwater collection data of different catch basins, so that the blockage conditions of the catch basins are automatically monitored; by means of the system, management personnel can conveniently, accurately and directly maintain and clean the blocked catch basin and the trash holding system, the integrity of an underground rainwater collecting pipe network is confirmed by comparing the collecting condition of the catch basin with the water accumulation condition of the water storage pool, and the operation reliability of a sponge city is improved.

Description

Technical Field

[0001] The invention relates to the field of rainwater collection and utilization, and in particular to a sponge city road rainwater sewage interception and purification system. Background Art

[0002] With the acceleration of urbanization, rainwater management and water pollution are becoming increasingly serious. The traditional rainwater drainage system mainly relies on underground drainage pipes to quickly discharge rainwater, but this method ignores the utilization value of rainwater and easily leads to urban waterlogging and water pollution. In order to solve this problem, the concept of sponge city came into being. Sponge city aims to build green infrastructure such as rainwater gardens, grass-planted ditches, wetlands, etc., so that cities can absorb, store and discharge rainwater like sponges, reduce the pressure on urban drainage systems, purify rainwater and reduce water pollution. The construction of a new type of sunken green space with the concept of "sponge city" is an effective means to improve the functions of rainwater purification, drainage, groundwater recharge and storage in urban green spaces. It changes the traditional concept of water resource management and can effectively reduce the impact and damage to the ecological environment.

[0003] In the concept of sponge city, rainwater will carry a lot of non-degradable plastics and dead branches and leaves when it flows on the road. Too much garbage will cause environmental damage when entering the green infrastructure. Therefore, it is necessary to use trash screens to initially intercept the garbage. However, trash screens are prone to clogging when in use, which will cause clogging of rainwater collection wells and affect the collection effect of rainwater. At the same time, the clogging situation also requires a lot of manpower and material resources to investigate, which is not conducive to the deepening development of the sponge city concept.

[0004] In view of the above technical problems, this application proposes a solution. Summary of the invention

[0005] The present invention conducts statistical analysis on the collection conditions of rainwater wells distributed in a certain area, and performs dynamic analysis based on the real-time rainwater collection data and historical rainwater collection data of different rainwater wells, so as to determine whether the rainwater in the rainwater well is affected by the blockage of the sewage interception system, thereby realizing automatic monitoring of the blockage conditions of the rainwater wells, facilitating management personnel to accurately and directly maintain and clean blocked rainwater wells and sewage interception systems, thereby improving the operational reliability of the sponge city, solving the problem that the sewage interception system is easily blocked and difficult to detect during the rainwater collection process, thereby affecting the rainwater collection and purification effect, and proposes a sponge city road rainwater sewage interception and purification system.

[0006] The purpose of the present invention can be achieved by the following technical solutions:

[0007] A rainwater interception and purification system for sponge city roads, comprising a well collection unit, wherein the rainwater wells in the city roads collect rainwater and collect it into a reservoir. During the collection, large-volume impurities contained in the rainwater are blocked by trash racks. The well collection unit counts the amount of rainwater collected by the rainwater wells at each location during the process of the rainwater wells directing the rainwater into the reservoir.

[0008] A sewage interception estimation unit, wherein the sewage interception estimation unit obtains the rainwater collection volume through the sub-well collection unit, compares it with the historical collection volume, and estimates the degree of sewage interception blockage according to the comparison result;

[0009] A water storage statistical unit, which performs dynamic analysis on the amount of rainwater in the reservoir and estimates the change in the amount of water in the reservoir and the effect of rainwater collection according to the result of the dynamic analysis;

[0010] A collection warning unit, which determines the normality of the rainwater collection process according to the rainwater collection effect and generates a collection abnormality reminder;

[0011] The purification and distribution unit obtains the change of water volume in the reservoir, purifies and distributes rainwater according to the change of water volume in the reservoir, and allocates quotas for artificial purified water and natural purified water.

[0012] As a preferred embodiment of the present invention, when the rainwater collection unit counts the rainwater collection amount, the rainwater wells at different locations are numbered and recorded as i, i=1, 2, 3...n, and the rainwater collection amount collected by the rainwater wells at different locations is recorded as Li;

[0013] When the sub-well collection unit records the amount of rainwater, the time point at which the amount of rainwater collected is obtained is recorded, and the collection speed of the rainwater is calculated to obtain the rainwater collection speed between different time periods;

[0014] The sub-well collection unit obtains a rainwater collection amount variation curve by taking the time point of obtaining the rainwater collection amount as the horizontal axis and the rainwater collection amount as the vertical axis;

[0015] The sub-well collection unit stores the rainwater collection amount variation curve, thereby constructing a rainwater collection amount historical database.

[0016] As a preferred embodiment of the present invention, the interception estimation unit obtains the rainwater collection volume history database through the well collection unit, selects the rainwater collection volume change curves corresponding to the rainwater wells with different numbers at the same time, and records the highest point in each rainwater collection volume change curve as the final collection volume;

[0017] The interception estimation unit sums the final collection volumes to obtain the total collection volume, and calculates the proportion of the final collection volumes of the rainwater wells with different numbers in the total collection volume, and records it as the collection proportion;

[0018] The sewage interception estimation unit selects different times from the rainwater collection volume historical database multiple times to obtain the collection ratio of each rainwater well at multiple different times.

[0019] As a preferred embodiment of the present invention, the sewage interception prediction unit selects a group of rainwater wells, and arranges the collection proportions of the selected rainwater wells each time in chronological order, and performs difference calculation on the collection proportions of the arranged rainwater wells to obtain the changes in the collection proportions of the rainwater wells. If the collection proportion of the rainwater well becomes smaller and the change in the collection proportion is greater than the set threshold, a blockage signal is generated.

[0020] As a preferred embodiment of the present invention, the water storage statistical unit collects the water volume in the water reservoir, and records the time of each collection of the water volume in the water reservoir, and calculates the change rate of the water volume in the water reservoir according to the collection time interval of the water volume in the water reservoir and the change of the water volume in the water reservoir;

[0021] The water storage statistics unit calculates the difference between the current water volume and the maximum water storage volume of the reservoir to obtain the remaining capacity of the reservoir, and calculates the remaining capacity of the reservoir and the speed of change of the water volume in the reservoir to obtain the remaining water storage time, and compares the remaining water storage time with the set time threshold, and generates a sufficient capacity signal or a insufficient capacity signal according to the comparison result.

[0022] As a preferred embodiment of the present invention, the water storage statistics unit obtains the rainwater collection amount of all rainwater wells at a time point through the well collection unit, and simultaneously obtains the water volume of the water storage tank at the same time point, the water storage statistics unit sums up the rainwater collection amount of all rainwater wells, and records it as the total collection amount, and the water storage statistics unit compares the total collection amount with the water volume of the water storage tank, and records the difference in the comparison as the collection error;

[0023] The water storage statistical unit selects different time points multiple times, and calculates the collection error for each of the selected time points, thereby obtaining the collection error multiple times.

[0024] As a preferred implementation of the present invention, the collection warning unit performs weight distribution judgment based on the collection error of the water storage statistical unit, generates a water storage error based on the judgment result, and issues a collection abnormality reminder based on the water storage error.

[0025] As a preferred embodiment of the present invention, the purified water distribution unit generates a natural purified water signal when obtaining a capacity shortage signal, and performs formula analysis based on the current water volume change rate in the reservoir and the remaining water storage time to obtain a natural purified water quota; and generates an artificial purified water signal when obtaining a capacity sufficient signal to control the natural purified water quota to the minimum value.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] 1. In the present invention, when collecting and purifying rainwater, statistical analysis is performed on the collection conditions of rainwater wells distributed in a certain area, and dynamic analysis is performed based on the real-time rainwater collection data and historical rainwater collection data of different rainwater wells, so as to determine whether the rainwater in the rainwater well is affected by the blockage of the sewage interception system, thereby realizing automatic monitoring of the blockage of the rainwater well, facilitating the management personnel to accurately and directly maintain and clean the blocked rainwater wells and sewage interception systems, thereby improving the operational reliability of the sponge city.

[0028] 2. When collecting rainwater, the present invention conducts statistical comparative analysis on the collection conditions of the rainwater wells and the water accumulation conditions of the reservoirs to confirm the error of the rainwater collected in the rainwater wells when it is collected in the reservoirs, and verifies the integrity of the underground rainwater collection network based on the error conditions, thereby monitoring the underground network leakage that is difficult to detect through the surface rainwater collection data.

[0029] 3. In the present invention, the water volume in the underground water reservoir is dynamically monitored to obtain the balance between the water volume and capacity in the water reservoir, and the collected rainwater is purified and allocated according to the balance, so that the rainwater purification by artificial equipment and the rainwater purification by the landscape wetland can be carried out simultaneously, which not only ensures the energy-saving and environmental protection effect brought by the natural purification of rainwater, but also can reasonably allocate the water volume in the landscape wetland, thereby ensuring the stability of the landscape wetland environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0031] Figure 1 is a system block diagram of the present invention;

[0032] Figure 2 It is a system flow chart of the present invention. DETAILED DESCRIPTION

[0033] The technical scheme of the present invention will be described clearly and completely in conjunction with the embodiments below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] Embodiment 1:

[0035] See also Figure 1 - Figure 2 As shown, a rainwater interception and sewage purification system for sponge city roads is used. Rainwater wells distributed in urban roads collect rainwater and collect it into a reservoir through an underground pipe network. During the collection, trash racks are arranged on the surface and shallow layer of the rainwater wells to intercept large-volume impurities contained in the rainwater. The purification system includes a separate well collection unit, a sewage interception estimation unit, a water storage statistics unit, a collection and early warning unit, and a purification distribution unit. The separate well collection unit collects statistics on the amount of rainwater collected by the rainwater wells at each location during the process of the rainwater wells guiding the rainwater into the reservoir.

[0036] When the well collection unit counts the amount of rainwater collected, the rainwater wells at different locations are numbered and recorded as i, i = 1, 2, 3...n, and the amount of rainwater collected by the rainwater wells at different locations is recorded as Li;

[0037] When the sub-well collection unit records the amount of rainwater, the time point of obtaining the amount of rainwater collection is recorded, and the collection speed of rainwater is calculated by the amount of rainwater collected and the time taken for collection, so as to obtain the rainwater collection speed between different time periods;

[0038] The sub-well collection unit takes the time point of obtaining the rainwater collection amount as the horizontal axis and the rainwater collection amount as the vertical axis to obtain a rainwater collection amount change curve. The sub-well collection unit stores the rainwater collection amount change curve, thereby constructing a rainwater collection amount historical database;

[0039] The sewage interception prediction unit obtains the rainwater collection volume through the well collection unit, and compares it with the historical collection volume. According to the comparison result, the sewage interception blockage degree is estimated. The method by which the sewage interception prediction unit compares the rainwater collection volume with the historical collection volume is:

[0040] The interception and estimation unit obtains the historical database of rainwater collection volume through the well collection unit, selects the rainwater collection volume change curves corresponding to the rainwater wells with different numbers at the same time, and records the highest point in each rainwater collection volume change curve as the final collection volume;

[0041] The interception estimation unit sums up the final collection volume to obtain the total collection volume, and calculates the proportion of the final collection volume of the rainwater wells with different numbers in the total collection volume, which is recorded as the collection proportion;

[0042] The interception estimation unit selects different times from the historical database of rainwater collection volume multiple times to obtain the collection ratio of each rainwater well at multiple different times;

[0043] The sewage interception estimation unit selects a group of rainwater wells, and arranges the collection ratio of the selected rainwater wells in chronological order each time, and performs difference calculation on the collection ratio of the arranged rainwater wells to obtain the change of the collection ratio of the rainwater wells. If the collection ratio of the rainwater well decreases and the change in the collection ratio is greater than the set threshold, a blockage signal is generated, and the blockage signal and the location and number of the rainwater well that generates the blockage signal are sent to the management platform through the network for the management personnel to view.

[0044] Embodiment 2:

[0045] See also Figure 1 - Figure 2 As shown, the water storage statistical unit collects the water volume in the water reservoir, and records the time of each collection of the water volume in the water reservoir, and calculates the change rate of the water volume in the water reservoir according to the collection time interval of the water volume in the water reservoir and the change of the water volume in the water reservoir;

[0046] The water storage statistics unit calculates the difference between the current water volume and the maximum water volume of the water tank to obtain the remaining capacity of the water tank, and calculates the remaining capacity of the water tank and the speed of change of the water volume in the water tank to obtain the remaining water storage time, and compares the remaining water storage time with the set time threshold. If the remaining water storage time is greater than the set time threshold, a sufficient capacity signal is generated. If the remaining water storage time is not greater than the set time threshold, an insufficient capacity signal is generated, and the sufficient capacity signal and the insufficient capacity signal are sent to the management platform through the network for management personnel to view;

[0047] The water storage statistics unit obtains the rainwater collection volume of all rainwater wells at a time point through the well collection unit, and simultaneously obtains the water volume of the water storage tank at the same time point. The water storage statistics unit sums up the rainwater collection volume of all rainwater wells and records it as the total collection volume. The water storage statistics unit compares the total collection volume with the water volume of the water storage tank, and records the difference in the comparison as the collection error.

[0048] The water storage statistical unit selects different time points multiple times, and calculates the collection error for each of the selected time points, thereby obtaining the collection error multiple times;

[0049] The collection warning unit compares the collection error with the set error value according to the collection error of the water storage statistical unit, records the collection error greater than the set error value as a suspicious error, and records the collection error less than the set error value as an ignored error. If the proportion of suspicious errors is greater than the set proportion threshold, the judgment result generates a water storage error, and an abnormal collection reminder is issued based on the water storage error.

[0050] Embodiment three:

[0051] See also Figure 1 - Figure 2 As shown, when the clean water distribution unit obtains the insufficient capacity signal, it generates a natural clean water signal, and performs a formula analysis based on the current water volume change speed and the remaining water storage time in the reservoir to obtain the natural clean water quota HB. Among them, Q is the set weight coefficient, V is the speed of change of water volume in the reservoir, T is the remaining water storage time, and H0 is the minimum natural water purification quota. When the capacity sufficient signal is obtained, an artificial water purification signal is generated to control the natural water purification quota to the minimum value.

[0052] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A sponge city road rainwater interception and purification system, characterized in that: It includes a well collection unit. The rainwater wells in the urban roads collect rainwater and collect it into a reservoir. During the collection, the large volume of impurities contained in the rainwater is blocked by the trash rack. The well collection unit collects rainwater from the rainwater wells in the process of introducing the rainwater into the reservoir and counts the amount of rainwater collected by the rainwater wells at each location. A sewage interception estimation unit, wherein the sewage interception estimation unit obtains the rainwater collection volume through the sub-well collection unit, compares it with the historical collection volume, and estimates the degree of sewage interception blockage according to the comparison result; A water storage statistical unit, which performs dynamic analysis on the amount of rainwater in the reservoir and estimates the change in the amount of water in the reservoir and the effect of rainwater collection according to the result of the dynamic analysis; A collection warning unit, which determines the normality of the rainwater collection process according to the rainwater collection effect and generates a collection abnormality reminder; The purification and distribution unit obtains the change of water volume in the reservoir, purifies and distributes rainwater according to the change of water volume in the reservoir, and allocates quotas for artificial purified water and natural purified water.

2. A sponge city road rainwater interception and purification system according to claim 1, characterized in that: When the rainwater collection unit counts the amount of rainwater collected, the rainwater wells at different locations are numbered and recorded as i, i=1, 2, 3...n, and the amount of rainwater collected by the rainwater wells at different locations is recorded as Li; When the sub-well collection unit records the amount of rainwater, the time point at which the amount of rainwater collected is obtained is recorded, and the collection speed of the rainwater is calculated to obtain the rainwater collection speed between different time periods; The sub-well collection unit obtains a rainwater collection amount variation curve by taking the time point of obtaining the rainwater collection amount as the horizontal axis and the rainwater collection amount as the vertical axis; The sub-well collection unit stores the rainwater collection amount variation curve, thereby constructing a rainwater collection amount historical database.

3. A sponge city road rainwater interception and purification system according to claim 1, characterized in that: The interception estimation unit obtains the rainwater collection volume history database through the well collection unit, selects the rainwater collection volume change curves corresponding to the rainwater wells with different numbers at the same time, and records the highest point in each rainwater collection volume change curve as the final collection volume; The interception estimation unit sums the final collection volumes to obtain the total collection volume, and calculates the proportion of the final collection volumes of the rainwater wells with different numbers in the total collection volume, and records it as the collection proportion; The sewage interception estimation unit selects different times from the rainwater collection volume historical database multiple times to obtain the collection ratio of each rainwater well at multiple different times.

4. A sponge city road rainwater interception and purification system according to claim 3, characterized in that: The sewage interception prediction unit selects a group of rainwater wells, and arranges the collection proportions of the selected rainwater wells each time in chronological order, performs difference calculation on the collection proportions of the arranged rainwater wells, and obtains the change in the collection proportion of the rainwater wells. If the collection proportion of the rainwater well decreases and the change in the collection proportion is greater than the set threshold, a blockage signal is generated.

5. The sponge city road rainwater interception and purification system according to claim 1 is characterized in that: The water storage statistical unit collects the water volume in the water reservoir, records the time of each water volume collection in the water reservoir, and calculates the water volume change speed of the water reservoir according to the collection time interval of the water reservoir and the change of the water volume in the water reservoir; The water storage statistics unit calculates the difference between the current water volume and the maximum water storage volume of the reservoir to obtain the remaining capacity of the reservoir, and calculates the remaining capacity of the reservoir and the speed of change of the water volume in the reservoir to obtain the remaining water storage time, and compares the remaining water storage time with the set time threshold, and generates a sufficient capacity signal or a insufficient capacity signal according to the comparison result.

6. The sponge city road rainwater interception and purification system according to claim 1 is characterized in that: The water storage statistics unit obtains the rainwater collection amount of all rainwater wells at a time point through the well collection unit, and simultaneously obtains the water volume of the water storage tank at the same time point. The water storage statistics unit sums up the rainwater collection amount of all rainwater wells and records it as the total collection amount. The water storage statistics unit compares the total collection amount with the water volume of the water storage tank, and records the difference in the comparison as the collection error; The water storage statistical unit selects different time points multiple times, and calculates the collection error for each of the selected time points, thereby obtaining the collection error multiple times.

7. The sponge city road rainwater interception and purification system according to claim 1 is characterized in that: The collection warning unit performs weight distribution judgment based on the collection error of the water storage statistical unit, generates a water storage error based on the judgment result, and issues a collection abnormality reminder based on the water storage error.

8. The sponge city road rainwater interception and purification system according to claim 1 is characterized in that: When the clean water distribution unit obtains a capacity shortage signal, it generates a natural clean water signal, and performs formula analysis based on the current water volume change rate in the reservoir and the remaining water storage time to obtain a natural clean water quota. When the capacity is sufficient signal, it generates an artificial clean water signal to control the natural clean water quota to the minimum value.

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