CN106638884B - A kind of rainwater pressure type emergency tapping equipment and its discharge method of meeting an urgent need - Google Patents

Abstract

The invention discloses a rainwater pressure emergency discharge device and an emergency discharge method thereof. The system includes a signal collection and adaptive control subsystem, a strong pressure discharge subsystem, and a backwashing subsystem. The signal collection and adaptive control subsystem collects the surface water depth through sensors, converts it into an electrical signal and sends it to the microcontroller for judgment, and determines whether to open the pressure discharge subsystem according to the water depth; Switch to form the pressure backwash of water flow; the pressure discharge subsystem discharges the surface rainwater to the drainage pipeline by pressure. The device and method of the present invention can effectively solve the problem of insufficient drainage capacity of the rainwater outlet on urban roads and the sundries are easy to block the rainwater outlet during heavy rain, increase the emergency drainage capacity of rainwater, solve the problem of urban excessive rainwater discharge to a certain extent, and alleviate road waterlogging degree.

Description

A rainwater pressure type emergency discharge device and emergency discharge method thereof

technical field

The invention relates to a rainwater pressure type emergency discharge device and an emergency discharge method thereof, belonging to the field of municipal water supply and drainage public facilities.

Background technique

The urban surface rainwater drainage generally relies on gravity to flow into the rainwater inlet, and then discharges through the rainwater pipeline. The discharge process is slow, and the surface debris in the rainy season can easily block the rainwater outlet with the flow of rainwater, resulting in poor surface drainage and waterlogging on the surface.

The existing rainwater inlets mainly have the following problems: (1) The structure is simple and easy to block; only relying on the grille to block the surface debris (twigs, leaves, etc.), along with the flow of rainwater, the debris around the rainwater outlet accumulates, blocking the inflow of rainwater Rainwater inlets need manual cleaning and maintenance; (2) The ability to collect rainwater is limited; the rainwater collection depends on the surface drop between the rainwater inlets and the ground and the limited water passage area of the grille mouth, and the water collection capacity is limited, which cannot meet the timely drainage requirements during heavy rain. .

SUMMARY OF THE INVENTION

The invention mainly solves the problem of water accumulation on urban roads during heavy rain, provides a rainwater pressure emergency discharge method, improves the defects of sundries blockage and insufficient water collection capacity of the existing rainwater inlet, and improves the flood resistance and waterlogging prevention capacity of urban roads.

The technical scheme of the present invention is as follows:

The invention provides a rainwater pressure emergency discharge system, which includes a signal collection and self-adaptive control subsystem, a strong pressure discharge subsystem, and a backwashing subsystem. in:

The signal collection and adaptive control subsystem collects the surface water depth through sensors, converts it into an electrical signal and sends it to the microcontroller for judgment, and determines whether to open the pressure discharge subsystem according to the water depth. Once the water exceeds the warning value , which will open the pressure discharge subsystem and control the discharge intensity;

The backwashing subsystem forms pressure backwashing of the water flow through the switching of the electric valve, automatically flushes out the sundries near the rainwater outlet, keeps the water inlet unobstructed, and prevents the sundries from being blocked;

The strong pressure drainage system discharges the surface rainwater to the drainage pipeline by pressure, and through the strong suction of the strong drainage pump, a vacuum is formed at the water inlet end to speed up the gathering speed of the surface rainwater; at the water outlet end, the pump impeller works A pressure outflow is formed, and the pressure is discharged to the drain pipe through the connecting pipe.

Further, the backwash subsystem includes a first water inlet electric gate valve 2, a second water inlet electric gate valve 4, a strong discharge electric gate valve 7, a recoil electric gate valve 6 and a strong discharge pump 5. The first water inlet electric gate valve 2. The second water inlet electric gate valve 4, the strong discharge pump 5, and the strong discharge electric gate valve 7 are connected in sequence and then connected to the drain pipe. The connection ends of the first water inlet electric gate valve 2 and the second water inlet electric gate valve 4 are connected to the strong discharge pump 5. A recoil electric gate valve 6 is also connected between the connection end and the strong discharge electric gate valve 7; when the system works in the pressure strong discharge mode, the recoil electric gate valve 6 is closed, the strong discharge electric gate valve 7 is opened, and the system working mode is switched to strong In the discharge mode, if it is working in the backwash mode, the strong discharge electric gate valve 7 is closed, and the recoil electric gate valve 6 is opened to start the backwash.

The present invention also provides an emergency discharge method for a rainwater pressure emergency discharge system, comprising the following steps:

Step 1: When the ground starts to accumulate water, the water level sensor detects the depth of the surface water, and converts it into an electrical signal and sends it to the microcontroller MCU. The microcontroller MCU sets the warning depth value and compares it. If it exceeds the warning value, it starts to start. strong pressure discharge;

Step 2: Open the first water inlet electric gate valve 2, the second water inlet electric gate valve 4, the forced discharge electric gate valve 7, close the recoil electric gate valve 6, and start the pressure forced discharge;

Step 3: When the backwash time point is reached, close the first water inlet electric gate valve 2, the second water inlet electric gate valve 4, and the strong discharge electric gate valve 7, open the backwash electric gate valve 6, switch to the backwash mode, and start backwashing;

Step 4: After backwashing, close the recoil electric gate valve 6, open the first water inlet electric gate valve 2, the second water inlet electric gate valve 4, and the forced discharge electric gate valve 7, and restart the pressure forced discharge mode. According to the ground surface detected by the sensor The water depth adjusts the output frequency signal to speed up or slow down the working frequency of the forced discharge pump 5 according to the set working curve;

Step 5: The local surface water drops below the warning water depth, stop the system operation, and close all valves and forced discharge pumps 5.

The beneficial effects of the present invention are as follows:

The device and method of the present invention can effectively solve the problem of insufficient drainage capacity of the rainwater inlets of urban roads and the sundries are easy to block the rainwater inlets during heavy rain, increase the emergency drainage capacity of rainwater, solve the problem of urban excessive rainwater discharge to a certain extent, and alleviate road waterlogging degree.

Description of drawings

FIG. 1 is a structural block diagram of the rainwater pressure emergency drainage system of the present invention.

FIG. 2 is a schematic diagram of signal transmission and reception of the signal collection and adaptive control subsystem in the system of the present invention.

FIG. 3 is a schematic structural diagram of the backwashing subsystem in the system of the present invention.

In the figure: 1. Grille; 2. The first water inlet electric gate valve; 3. Grille; 4. The second water inlet electric gate valve; .

Detailed ways

The present invention will be further described in detail below in conjunction with the accompanying drawings.

The structure of a rainwater pressure emergency discharge system of the present invention is shown in Figure 1, including a signal collection and adaptive control subsystem, a backwash subsystem, and a high pressure discharge subsystem.

The main function of the signal collection and adaptive control subsystem is to collect the surface water depth through the sensor, convert it into an electrical signal and send it to the microcontroller for judgment, and determine whether to open the pressure discharge subsystem according to the water depth. Once the water exceeds the warning level value, the strong emission subsystem will be turned on and the emission intensity will be controlled. The signal transceiver structure of this subsystem is shown in Figure 2.

The main function of the backwash subsystem is to form a pressure backwash of the water flow through the switching of the electric valve, automatically flush out the sundries near the rainwater outlet, keep the water inlet unobstructed, and prevent the sundries from being blocked. The structure of the subsystem is shown in Figure 3. , including the first water inlet electric gate valve 2, the second water inlet electric gate valve 4, the strong discharge electric gate valve 7, the recoil electric gate valve 6 and the strong discharge pump 5. The first water inlet electric gate valve 2, the second water inlet electric gate valve 4, the strong discharge pump 5, and the strong discharge electric gate valve 7 are connected in sequence and then connected to the drain pipe. The connection between the first water inlet electric gate valve 2 and the second water inlet electric gate valve 4 A recoil electric gate valve 6 is also connected between the end and the connection end of the strong discharge pump 5 and the strong discharge electric gate valve 7 . When the system works in the pressure forced exhaust mode, the recoil electric gate valve 6 is closed, the forced exhaust electric gate valve 7 is opened, and the system working mode is switched to the forced exhaust mode. Electric gate valve 6, start backwashing.

The main function of the strong pressure drainage system is to force the surface rainwater to the drainage pipeline by pressure, and through the strong suction of the strong drainage pump, a vacuum is formed at the inlet end to speed up the gathering speed of the surface rainwater; After the work is done, a pressure outflow is formed, and the pressure is discharged to the drainage pipe through the connecting pipe.

The steps of a rainwater pressure emergency discharge method of the present invention are as follows:

(1) When the water starts to accumulate on the ground, the water level sensor detects the depth of the surface water, and converts it into an electrical signal and sends it to the microcontroller MCU. The MCU sets the warning depth value and compares it. If the warning value is exceeded, the pressure discharge is started. ;

(2) Open the first water inlet electric gate valve 2, the second water inlet electric gate valve 4, and the forced discharge electric gate valve 7, close the recoil electric gate valve 6, and start the pressure forced discharge;

(3) Reach the backwash time point, close the first water inlet electric gate valve 2, the second water inlet electric gate valve 4, and the strong discharge electric gate valve 7, start the backflush electric gate valve 6, switch to the backwash mode, and start the backwash mode;

(4) After backwashing, close the recoil electric gate valve 6, open the first water inlet electric gate valve 2, the second water inlet electric gate valve 4, and the forced discharge electric gate valve 7, and restart the pressure forced discharge mode, according to the ground surface detected by the sensor. The water depth adjusts the output frequency signal, according to the set working curve to speed up or slow down the working frequency of the forced discharge pump, the backwashing time is preferably 30 seconds;

(5) The local surface water drops below the warning water depth, stop the operation of the system, and close all valves and forced discharge pumps.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims (1)

1. An emergency discharge method of a rainwater pressure type emergency discharge system is based on the rainwater pressure type emergency discharge system and comprises a signal collection and self-adaptive control subsystem, a pressure forced discharge subsystem and a backwashing subsystem; wherein,

the signal collection and self-adaptive control subsystem collects the depth of surface water through a sensor, converts the depth of the surface water into an electric signal and sends the electric signal to the microcontroller for judgment, and determines whether to start the pressure forced drainage subsystem according to the depth of the surface water, and once the surface water exceeds an alarm value, the pressure forced drainage subsystem is started and controls the drainage intensity;

the backwashing subsystem forms pressure backwashing of water flow by switching of the electric valve, automatically flushes sundries near the rainwater inlet, keeps the water inlet smooth and prevents sundries from being blocked; the backwashing subsystem comprises a first water inlet electric gate valve (2), a second water inlet electric gate valve (4), a forced exhaust electric gate valve (7), a backwashing electric gate valve (6) and a forced exhaust pump (5), wherein the first water inlet electric gate valve (2), the second water inlet electric gate valve (4), the forced exhaust pump (5) and the forced exhaust electric gate valve (7) are sequentially connected and then connected with a drainage pipe, and the backwashing electric gate valve (6) is also connected between the connecting end of the first water inlet electric gate valve (2) and the second water inlet electric gate valve (4) and the connecting end of the forced exhaust pump (5) and the forced exhaust electric gate valve (7); when the system works in a pressure forced-exhaust mode, closing the backflushing electric gate valve (6), opening the forced-exhaust electric gate valve (7), switching the working mode of the system to the forced-exhaust mode, and if the system works in the backflushing mode, closing the forced-exhaust electric gate valve (7), opening the backflushing electric gate valve (6) and starting backflushing;

the pressure forced drainage subsystem forcibly drains the rainwater on the ground surface to a drainage pipeline in a pressure mode, and vacuum is formed at a water inlet end through powerful suction of a forced drainage pump, so that the gathering speed of the rainwater on the ground surface is accelerated; the pressure outflow is formed at the water outlet end by the work of the pump impeller and is discharged to the drainage pipeline by the pressure of the connecting pipe,

the method is characterized in that: the method comprises the following steps:

step 1: when water accumulation starts on the ground, the water level sensor detects the depth of the water accumulated on the ground surface, converts the water accumulated depth into an electric signal and transmits the electric signal to the microcontroller MCU, the microcontroller MCU sets an alert depth value and compares the alert depth value, and if the alert depth value is exceeded, pressure forced drainage starts;

step 2: opening a first water inlet electric gate valve (2), a second water inlet electric gate valve (4) and a forced exhaust electric gate valve (7), closing a recoil electric gate valve (6), and starting pressure forced exhaust;

and step 3: when the backwashing time point is reached, the first water inlet electric gate valve (2), the second water inlet electric gate valve (4) and the forced discharge electric gate valve (7) are closed, the backwashing electric gate valve (6) is opened, the backwashing mode is switched to, and backwashing is started;

and 4, step 4: after the backwashing is finished, closing the backwashing electric gate valve (6), opening the first water inlet electric gate valve (2), the second water inlet electric gate valve (4) and the forced drainage electric gate valve (7), restarting the pressure forced drainage mode, adjusting an output frequency signal according to the surface water depth detected by the sensor, and accelerating or slowing down the working frequency of the forced drainage pump (5) according to a set working curve;

and 5: and when the surface water drops below the warning water depth, stopping the system operation, and closing all valves and the forced drainage pump (5).